CN202607493U - Inner zero-setting measuring device - Google Patents

Abstract

The utility model discloses a novel inner zero-setting measuring device of an initiative measuring component used for grinding machining. During a use process, a zero-setting knob of a measuring device is rotated, and a standard measuring zero point which is troublesome to adjust before modification can be fast corrected. A fixing support arm elastic body, a cam curved surface driven rod, a pressing spring and the zero setting knob are added and designed on the original basis. The inner zero-setting measuring device is characterized in that by means of reasonable design, the fixing support arm elastic body enables a fixing support arm to generate displacement under the effects of cam curved surface driven rod and the pressing spring. Distance between the fixed support arm and a movable support arm is changed, an electronic displacement sensor sends out displacement signals, and adjusting work of the standard measuring zero setting is finished through an instrument. By means of a standard measuring zero point, the instrument can display the size of a machined workpiece, and a lathe is controlled to finish machining program automatically. The device can be used for online measurement of grinding machining of an inner circle and an outer circle and has the advantages of being convenient to install, stable to measure, high in precision (1u/8 hours), fast in adjustment during replacing of different workpieces and simple and reliable. A measuring head protecting block device is designed in order to avoid damage caused by accidents. When misoperation of the lathe occurs, the high-precision sensor can be protected effectively, faults are reduced, production is not affected, and service life of the measuring device is prolonged.

Description

Interior zeroing measurement mechanism

Technical field

The utility model relates to the measurer of real-time measuring workpieces size in the processing of a kind of lathe mill; A kind ofly specifically can be widely used in various, common, automatic, semi-automatic, numerically control grinder; To various axle classes and hole class; Be implemented in the process, to the size of part to be processed, the measurer that online in real time is initiatively measured.

Background technology;

The industrial process technology of China obtains fast development in recent years, after heat treatment, needs the accessory size requirement of mill processing increasingly high, the update that manufacturing process does not also stop, and detection method is constantly being improved.But initiatively measure the appearance work in-process and detect change in size in real time, with the fast automatic completion procedure of grinding State Control lathe of the best.To raise the efficiency in order reducing cost, also to have obtained extensive use gradually in China in recent years.At present various countries' existing active amount appearance basic structure by: " electron-amplifier ", " measurement mechanism ", two parts are formed.Fixedly support arm and movable support arm are housed in the measurement mechanism, connect through elastomer.Displacement transducer detects the distance signal of two support arms, flows to electron-amplifier by cable, and the control lathe is worked automatically after the Measurement and Data Processing.Initiatively measure the appearance work under bad environment, humidity and dust are big, and certainty of measurement requires high (1 μ level).Adjustment requires that high the measuring staff front end needs contact workpiece during the adjustment amount appearance and loaded down with trivial details, observes instrument, mixes up benchmark zero point, must lock measuring staff to fix, otherwise will influence stable, and occurrence of waste.Measuring staff can produce displacement again when locking, makes the zero drift that mixes up, and is bigger like drift, also need unclamp adjustment repeatedly.Also need certain hour to come to adjust respectively two measuring staffs up and down for skilled operating personnel, time-consuming.Adjust not at that time, measurement mechanism very easily damages, and influence is produced.Accurate because of the measurement mechanism inner structure, maintenance cost is also higher, and it is bigger to adapt to flowing of current workman, and class's output is high, requirement wide in variety.Through investigation; The user hopes to use the current production status of adaptation, only needs the non-damageable again active amount of simple and easy adjustment appearance product, and common operator also can arbitrarily be adjusted and used.

Summary of the invention

The purpose of the utility model is: to the existing appearance measurement mechanism of initiatively measuring the loaded down with trivial details problem of adjustment is installed, provides a kind of easy for installation, adjustment is simple, measurement mechanism safe in utilization.When measuring different workpieces, measuring staff is touched under the state on measured workpiece surface and be locked.Only need the zeroing knob on turn gauge head next door, can be through the instrument rapid adjustment to amount appearance required benchmark zero point.

The technical scheme of the utility model is:

Zeroing measurement mechanism in a kind of; Comprise test arm up and down; Connect inner moveable support arm and displacement transducer through the protection piece; Fixedly support arm is connected with movable support arm through elastomer, and the cam curved surface follower lever can be controlled the distance of fixing branch arm and movable arm room, detects range information by electronic displacement sensor.It is characterized in that, rotating cam, fixedly support arm is at the effect bottom offset of stage clip, can be fast through instrument calibration amount appearance required benchmark zero point.

Preferably, the cam curved surface follower lever is contained in fixedly in the support arm rectangular opening, and under the effect of stage clip, rotating cam can be controlled the distance of fixing branch arm and movable arm room, reaches the correcting value appearance benchmark measurement requirement at zero point.

Preferably, fixedly support arm elastomer, an end are fixed on the housing, and the other end is connected with fixing support arm, and making fixedly support arm is the fulcrum swing offset with the fixing elastomeric little arc surface of support arm, reaches stabilization.

Preferably, measuring staff connects the inner moveable support arm through the protection piece, has one to detect the hole on the protection piece, and this hole can detect the dynamics that test arm is passed to movable support arm, and when near the gauge head limit holding capacity, the fracture of protection piece guarantees that gauge head internal measurement device is not damaged.

The beneficial effect of the utility model is:

1, during the amount of debuging appearance, test arm is transferred under the contact workpiece state is locked.Only needing to rotate the zeroing knob can be through instrument calibration measuring basis zero point.Measurement mechanism is easy to adjust, and is quick, and dimensionally stable has realized changing the rapid adjustment and the measurement requirement of different size workpiece.

2, gauge head protection piece can limit the dynamics that measuring staff is passed to movable support arm, and when receiving improper impact and collision, its strength is during near gauge head limit holding capacity, and the inner accurate device of gauge head has been protected in the fracture of protection piece.Guarantee that sensor is not damaged by collision, reduce fault, reduce maintenance cost.Do not influence production, improve the service life of initiatively measuring appearance again.

Description of drawings

Fig. 1 is the whole front view of interior zeroing measurement mechanism.

Fig. 2 is interior zeroing measurement mechanism vertical view.

Wherein, Reference numeral: the 1-housing, 2-is support arm fixedly, the 3-electronic displacement sensor; The movable support arm of 4-, 5-cam curved surface follower lever, 6-follower lever, 7-stage clip; 8-is the support arm elastomer fixedly, the movable support arm elasticity of 9-, and 10-protects piece, 11-measuring staff lock screw; 12-measuring staff, 13-measured workpiece, the 14-knob that returns to zero, the 15-gage outfit.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

The specific embodiment 1 of the utility model: shown in Figure 2 like Fig. 1, a kind of in the zeroing measurement mechanism, comprise be contained in the inner movable support arm (4) of housing (1), through movable support arm elastomer (9) and fixing support arm elastomer (8), with fixing support arm (2), be connected.Fixing support arm elastomer (8), fixing with housing (1), electronic displacement sensor (3) can detect distance between two support arms.Fixedly in the rectangular opening of support arm (2) cam curved surface follower lever (5) is housed, stage clip (7) makes fixedly support arm (2) near the cam cambered surface of cam curved surface follower lever (5).The other end of cam curved surface follower lever (5) is connected with the zeroing knob (14) of gage outfit (15) outside.

During present embodiment 1 work, behind measuring staff (12) the contact measured workpiece (13), be locked through measuring staff lock screw (11).Rotation zeroing knob (14); Fixedly support arm (2) is under the effect of stage clip (7); Being fulcrum with fixing support arm elastomer (8) changes fixedly the support arm (2) and the movable distance of support arm (4) with the anglec of rotation of cam curved surface follower lever (5); And change the measurement parameter of electronic displacement sensor (3), can be through instrument calibration amount appearance required measurement zero point.

Thespecific embodiment 2 of the utility model: as shown in Figure 1, protection piece (10) adopts friable material, has designed a dynamics and has detected the hole, is connected with fixing support arm (2) with movable support arm (4) respectively.This hole can detect the dynamics that test arm is passed to movable support arm,

3, duringpresent embodiment 2 work, when measuring staff (12) receives improper impact and collision, the power that measuring staff (12) is passed to movable support arm (4) is during near gauge head limit holding capacity, and protection piece (10) can fracture, protects the inner measuring element of gauge head (15) effectively.Do not damaged by collision.Reduce fault, improve the service life of initiatively measuring appearance again.

Claims (3)

1. initiatively measure appearance parts " interior zeroing measurement mechanism " for one kind, comprise measuring staff (12), gauge head protection piece (10), zeroing knob (14), cam curved surface follower lever (5), stage clip (7), fixedly support arm (2), fixedly support arm elastomer (8), movably support arm (4) is characterized in that; Rotation zeroing knob (14), cam curved surface follower lever (5), also rotation simultaneously; Fixedly support arm (2) is at stage clip (7) with fixedly under the effect of support arm elastomer (8); Make fixedly support arm (2) displacement, change fixedly support arm (2) and the movably distance of support arm (4), electronic displacement sensor (3) thereupon; Detect corresponding displacement signal, fast correcting value appearance operate as normal required benchmark zero point.

2. according to the said interior zeroing measurement mechanism of claim 1; It is characterized in that fixedly support arm elastomer (8) one ends are fixed on the housing, the other end is connected with fixing support arm; Making fixedly support arm is the fulcrum swing offset with the fixing elastomeric little arc surface of support arm, reaches the fixedly displacement stabilization of support arm.

3. according to the said interior zeroing measurement mechanism of claim 1, it is characterized in that measuring staff (12) is connected to movable support arm (4) through gauge head protection piece (10); Gauge head protection piece (10) has designed a dynamics and has detected the hole; When measuring staff (12) receives improper impact and collision, when strength is born the limit near gauge head, gauge head protection piece (10) fracture; Protect electronic displacement sensor (3) and inner accurate device not to be damaged effectively, guarantee initiatively to measure the appearance operate as normal.

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