A kind of electromagnetism four-way reversing valve support positioning fixture and this support welding procedureTechnical field
The invention belongs to cross valve welding technology field, it is related to a kind of electromagnetism four-way reversing valve support positioning fixture, further relate to this kind of electromagnetism four-way reversing valve support welding procedure.
Background technology
Electromagnetism four-way reversing valve is a vitals on heat pump type air corditioning system, main inclusion solenoid, pilot valve and main valve, by pilot valve control bound, using pressure reduction switching action, by solenoid electric and power-off controls the flow direction of cold-producing medium, thus realizing the switching freezed and heat, commutate flexibility and reliability.The pilot valve playing leading role is positioned by support and is fixed on main valve body.
At present, the welding procedure of electromagnetism four-way reversing valve support generally requires to first pass through the position in main valve body for the resistance welding locating support, then adds solder on flame welding machine and completes to weld.But, it is bad that the resistance welding of support easily produces positioning in operation, affects support welding quality, thus directly affecting quality and the performance of electromagnetism four-way reversing valve, in addition, it is desirable to through double welding sequence, complicated trouble, labor strength is larger, and production cost rises, and yield rate is relatively low.
Content of the invention
It is an object of the invention to provide a kind of electromagnetism four-way reversing valve support positioning fixture, good positioning action is played to electromagnetism four-way reversing valve support, make support and main valve body can directly complete to weld on flame welding machine.
It is a further object of the present invention to provide this kind of electromagnetism four-way reversing valve support welding procedure.
For solving technical problem, the present invention adopts the following technical scheme that：
A kind of electromagnetism four-way reversing valve support positioning fixture, for support being positioned with main valve body in the welding process of electromagnetism four-way reversing valve support, including chuck body and the installation portion being fastened in described chuck body, described chuck body is arranged on flame welding machine fixture by installation portion, described installation portion is provided with block, described block is used for preventing main valve body from moving, and described chuck body is provided with detent mechanism, and described detent mechanism is used for for support being pressed on main valve body.
Support and main valve body are pressed together by the present invention by detent mechanism and block, clamped one time can be realized complete to weld, it is not required to support and main valve body are fixed in advance by resistance welding, this positioning fixture structure is simple, positioning is convenient, do not allow between support and main valve body to be also easy to produce play and movement, be that welding procedure provides reliable positioning.
Preferably, described detent mechanism includes gripper shoe, the first locating piece, the second locating piece and slide block, the end of described first locating piece and gripper shoe is separately fixed at the upper and lower ends of the second locating piece, described slide block is located between the first locating piece and gripper shoe, and described slide block can move back and forth between the second locating piece and support, described slide block compresses support in welding process.By the movement of slide block, support is pressed on main valve body so that both are not easy play, facilitates the welding procedure of postorder to be smoothed out it is ensured that welding quality is good and electromagnetism four-way reversing valve excellent performance.In addition, gripper shoe and the first locating piece can be integrative-structures.
Preferably, it is provided with spring between described second locating piece and slide block.In welding process, spring is in compressive state, and support can be pressed on main valve body for the screen resilience of spring.Support can also be made by other means to be pressed on main valve body, such as push to withstand support to main valve body using push rod, using gear drive, support to be pressed on main valve body first-class.
Preferably, described slide block is provided with the screw rod for moving slide block manually.After the completion of welding, slide block, compression spring, releases clamp can be moved manually by screw rod, electromagnetism four-way reversing valve is taken out.
Preferably, the leading section of described slide block is used for compressing support, the surface of described leading section is the arc-shaped curved surface matching with support contact surface, and the leading section top of described slide block is provided with the convex tendon extending forward from arc-shaped curved surface, and described support is clamped between convex tendon and gripper shoe.Support is positioned by the clamping due to convex tendon and gripper shoe, it is to avoid the play of support in the vertical direction well.
Preferably, described block is fixed on installation portion by contiguous block.
This kind of electromagnetism four-way reversing valve support welding procedure, its processing step is as follows：Electromagnetism four-way reversing valve support positioning fixture described in above-mentioned any one specific embodiments is arranged on flame welding machine fixture, then by detent mechanism and block, support and main valve body are positioned, and be subjected to by flame welding machine, welding completes.
Need to first pass through the position in main valve body for the resistance welding locating support with prior art, then the welding procedure that interpolation solder completes to weld on flame welding machine is compared, the step that the present invention can cancel resistance welding, flame welding machine welding is directly carried out by after support and main valve body positioning using positioning fixture, realizes a step and be welded.So, overcoming the positioning that support produces in resistance welding operation bad, substantially increasing support welding quality, thus ensure that quality and the performance of electromagnetism four-way reversing valve, and, greatly simplify welding sequence, simple to operate, mitigate labor strength, reduce production cost, improve yield rate.
Compared with prior art, the invention has the advantages that：
The electromagnetism four-way reversing valve support positioning fixture of the present invention, by support being positioned with main valve body in the welding process of electromagnetism four-way reversing valve support, support and main valve body is made can directly to complete to weld on flame welding machine, clamped one time can be realized complete to weld, this positioning fixture structure is simple, positioning is convenient, does not allow to be also easy to produce play and movement between support and main valve body, is that welding procedure provides reliable positioning.
Meanwhile, this kind of electromagnetism four-way reversing valve support welding procedure, the step that resistance welding in prior art can be cancelled, flame welding machine welding is directly carried out by after support and main valve body positioning using positioning fixture, realizes a step and be welded.So, overcoming the positioning that support produces in resistance welding operation bad, substantially increasing support welding quality, thus ensure that quality and the performance of electromagnetism four-way reversing valve, and, greatly simplify welding sequence, simple to operate, mitigate labor strength, reduce production cost, improve yield rate.
Brief description
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of stereogram in support welding positioning for the present invention electromagnetism four-way reversing valve support positioning fixture embodiment 1；
Fig. 2 is a kind of structural representation of present invention electromagnetism four-way reversing valve support positioning fixture embodiment 1；
Fig. 3 is the stereogram that in prior art, electromagnetism four-way reversing valve support welds positioning mode.
Specific embodiment
As Fig. 1, shown in 2, for the present invention a kind of electromagnetism four-way reversing valve support positioning fixture embodiment 1, for support 7 being positioned with main valve body 5 in the welding process of electromagnetism four-way reversing valve support, including chuck body 1 and the installation portion 2 being fastened in described chuck body 1, described chuck body 1 is arranged on flame welding machine fixture 3 by installation portion 2, described installation portion 2 is provided with block 4, described block 4 is fixed on installation portion 2 by contiguous block 41, described block 4 is used for preventing main valve body 5 mobile, described chuck body 1 is provided with detent mechanism 6, described detent mechanism 6 is used for for support 7 being pressed on main valve body 5.
As shown in Figure 2, described detent mechanism 6 includes gripper shoe 61, the first locating piece 62, the second locating piece 63 and slide block 64, the end of described first locating piece 62 and gripper shoe 61 is separately fixed at the upper and lower ends of the second locating piece 63, described slide block 64 is located between the first locating piece 62 and gripper shoe 61, and described slide block 64 can move back and forth between the second locating piece 63 and support 7, described slide block 64 compresses support 7 in welding process.By the movement of slide block 64, support 7 is pressed on main valve body 5 so that both are not easy play, facilitates the welding procedure of postorder to be smoothed out it is ensured that welding quality is good and electromagnetism four-way reversing valve excellent performance.In addition, gripper shoe and the first locating piece can be integrative-structures.
It is provided with spring 65 between described second locating piece 63 and slide block 64.Described slide block 64 is provided with the screw rod 641 for moving slide block 64 manually.In welding process, spring 65 is in compressive state, and support 7 can be pressed on main valve body 5 for the screen resilience of spring 65, after the completion of welding, can move slide block 64, compression spring 65, releases clamp 7 manually by screw rod 641, electromagnetism four-way reversing valve is taken out.
The leading section of described slide block 64 is used for compressing support 7, the surface of described leading section is the arc-shaped curved surface matching with support 7 contact surface, the leading section top of described slide block 64 is provided with the convex tendon 642 extending forward from arc-shaped curved surface, and described support 7 is clamped between convex tendon 642 and gripper shoe 61.Support 7 is positioned by the clamping due to convex tendon 642 and gripper shoe 61, it is to avoid the play of support 7 in the vertical direction well.
The electromagnetism four-way reversing valve support positioning fixture of the present embodiment, by support 7 being positioned with main valve body 5 in the welding process of electromagnetism four-way reversing valve support, support 7 and main valve body 5 is made can directly to complete to weld on flame welding machine, clamped one time can be realized complete to weld, this positioning fixture structure is simple, positioning is convenient, does not allow to be also easy to produce play and movement between support 7 and main valve body 5, is that welding procedure provides reliable positioning.
This kind of electromagnetism four-way reversing valve support welding procedure, its processing step is as follows：Above-mentioned electromagnetism four-way reversing valve support positioning fixture is arranged on flame welding machine fixture 3, then passes through detent mechanism 6 and block 4 positions to support 7 and main valve body 5, and be subjected to by flame welding machine, welding completes.Specific welding step can be carried out according to the concrete operations of prior art Flame bonding machine.
As shown in Figure 3, weld the stereogram of positioning mode for electromagnetism four-way reversing valve support in prior art, in figure is visible and be that support 7 and main valve body 5 are fixed on the positioning, it is thus desirable to first passing through the position in main valve body 5 for the resistance welding locating support 7, then solder being added on flame welding machine and completes to weld.And the resistance welding of support 7 tends in operation produce and positions bad, impact support 7 welding quality, thus directly affecting quality and the performance of electromagnetism four-way reversing valve, in addition, it is desirable to through double welding sequence, complicated trouble, labor strength is larger, and production cost rises, and yield rate is relatively low.Compared with prior art, the step that the welding procedure in the present embodiment eliminates resistance welding, directly carries out flame welding machine welding after positioning support 7 and main valve body 5 using positioning fixture, realizes a step and is welded.So, overcoming the positioning that support 7 produces in resistance welding operation bad, substantially increasing support 7 welding quality, thus ensure that quality and the performance of electromagnetism four-way reversing valve, and, greatly simplify welding sequence, simple to operate, mitigate labor strength, reduce production cost, improve yield rate.
The foregoing is only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto, any those skilled in the art in the field of the invention, all cover among the scope of the claims of the present invention by the change made or modification.