CN211552765U

CN211552765U - Pneumatic locking type measuring device

Info

Publication number: CN211552765U
Application number: CN202020134244.XU
Authority: CN
Inventors: 袁松涛; 陈革新; 何阳林
Original assignee: Shanghai Shunyu Electromechanical Technology Development Co ltd
Current assignee: Shanghai Shunyu Electromechanical Technology Development Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-22
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a measuring device technical field discloses a pneumatic locking formula measuring device. Comprises a sliding arm, a rotating arm and a measuring head. One end of the sliding arm is provided with a support, the support is provided with an air cylinder, a push-pull rod is arranged in the air cylinder, and the tail end of the push-pull rod, which is positioned outside the air cylinder, is provided with a connecting shaft. The other end of the sliding arm is provided with a rotating shaft, a rotating sleeve is coaxially sleeved outside the rotating shaft, a rotating arm is fixedly connected to the rotating sleeve, and the tail end of the rotating arm is provided with a measuring head. One end of the sliding arm close to the rotating shaft is provided with a supporting block. The sliding arm is connected with the rotating sleeve through a transmission chain, a transmission rod is fixed at the bent part of the transmission chain, and the connecting shaft is connected with the transmission rod. The connecting shaft is externally provided with a band-type brake, the band-type brake is fixed on the sliding arm through a band-type brake rod, and the inner wall of the band-type brake is tightly abutted to the connecting shaft and provided with a resistance increasing sheet. The bottom surface of the sliding arm is provided with a sliding groove, and one end of the sliding arm close to the cylinder is provided with a fixing frame. The rotating arm is hollow and is provided with a supporting rod which is abutted against the measuring head.

Description

Pneumatic locking type measuring device

Technical Field

The utility model relates to a measuring device technical field, more specifically say, it relates to a pneumatic locking formula measuring device.

Background

Pneumatic is that compressed air is used as a power source to drive a machine to complete stretching or rotating actions. The pneumatic device has the advantages of simple structure, light weight, simple installation and maintenance, low pressure level, safe use, safety relative to a hydraulic system and the like.

Chinese utility model patent with patent publication number CN206504712U discloses a pneumatic measuring component and a measuring machine including the same, which is helpful for realizing automatic measurement of workpiece size. The pneumatic measuring assembly comprises a measuring head arranged on a measuring machine main body and an adjusting mechanism used for connecting the measuring machine main body and the measuring head, wherein the adjusting mechanism is provided with an aligning part capable of adjusting the radial position of the measuring head.

When the measuring machine in the patent is used, if a gas supply device fails or gas is exhausted, the elastic body can retract rapidly, so that the measurement of the measuring machine is unstable, and even the measuring machine can be damaged.

SUMMERY OF THE UTILITY MODEL

When the measuring device is subjected to a failure of gas supply equipment or gas exhaustion, the elastic body can retract rapidly, so that the measurement of the measuring machine is unstable, and even the measuring machine is damaged and the service life of the measuring machine is shortened. An object of the utility model is to provide a pneumatic locking formula measuring device, this pneumatic locking formula measuring device have measure stable, not fragile, advantages such as long service life.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pneumatic locking formula measuring device, includes the sliding arm, the one end of sliding arm is equipped with the support, install the cylinder on the support, the cylinder embeds there is the push-and-pull rod, the push-and-pull rod stretches out the one end of cylinder is equipped with the connecting axle, the sliding arm other end is equipped with the axis of rotation, install the rotor arm in the axis of rotation, the one end that the axis of rotation was kept away from to the rotor arm is equipped with the measuring head, be equipped with the driving chain on the sliding arm the one end of driving chain with the sliding arm links to each other, the other end with the axis of rotation links to each other, the driving chain to cylinder one side bending, the bend is equipped with the transfer line, the connecting axle with the transfer line is connected, the connecting axle is equipped with the band-.

Through the technical scheme, the gas in the cylinder on the sliding arm can push the push-pull rod to slide back and forth at the opening of the cylinder, and the push-pull rod is connected with the transmission rod through the connecting shaft, so that the transmission rod moves in the same moving direction as the push-pull rod. The transmission rod drives the transmission chain to rotate around a shaft connected with the sliding arm, the transmission chain further drives the rotating shaft to rotate, and the rotating shaft drives the rotating arm welded on the rotating shaft to rotate around the rotating shaft, so that the pneumatic locking type measuring device has a measuring range on the dimension around the rotating shaft. The measuring head is arranged on the rotating shaft and used for measuring the size of the device. When the pneumatic device breaks down or the gas in the cylinder is exhausted, the push-pull rod drives the connecting rod, the connecting shaft and the transmission rod to retract rapidly towards the depth direction of the cylinder cavity, and then the transmission chain and the rotating arm rotate along the rotating shaft. At the moment, the contracting brake clamps the connecting shaft to block the parallel movement of the connecting rod, the connecting shaft and the transmission rod and the rotation of the transmission chain and the rotating arm, so that the measuring device is protected by self-locking and is more stable to use.

The utility model discloses further set up to: the rotating arm is characterized in that one end, close to the rotating shaft, of the rotating arm is provided with a rotating sleeve, the rotating sleeve is sleeved outside the rotating shaft and rotates around the rotating shaft, and the rotating arm and the transmission chain are fixedly connected with the rotating sleeve.

Through above-mentioned technical scheme, can drive through the rotation of axis of rotation and rotate the sleeve, and then drive the rotor arm and rotate. The rotating sleeve is thicker than the rotating shaft, the rotating sleeve is more uniform in rotation, the rotating arm rotates more stably along the axial direction, and the force arm is longer in rotation, so that labor is saved.

The utility model discloses further set up to: and one end of the sliding arm, which is close to the rotating shaft, is provided with a supporting block, the supporting block is provided with a notch, and the notch is abutted to the rotating sleeve.

Through above-mentioned technical scheme, the supporting shoe plays the effect that supports to rotating sleeve and rotor arm, and rotating sleeve can rotate in the notch of supporting shoe for the rotation of rotor arm is more stable.

The utility model discloses further set up to: the inside cavity of rotor arm, the inside bracing piece that is provided with of rotor arm, the bracing piece closely butt in the joint department of measuring head with the rotor arm.

Through the technical scheme, the measuring head is supported and fixed at the tail end of the rotating arm through the supporting rod, so that the measuring head is more tightly connected with the rotating arm, and the measuring head is not easy to bend and damage.

The utility model discloses further set up to: the side of the measuring head is provided with a fixed plate, and the fixed plate is provided with a protection frame.

Through above-mentioned technical scheme, when placing measuring device and measuring, the fender bracket can protect the measuring head for the measuring head is difficult to buckle when measuring and damages.

The utility model discloses further set up to: and the inner wall of the band-type brake is provided with a resistance increasing sheet which is tightly abutted to the connecting shaft.

Through the technical scheme, the resistance increasing sheet arranged on the inner wall of the band-type brake can increase the frictional resistance of the band-type brake, and the self-locking protection is more effective.

The utility model discloses further set up to: the bottom surface of the sliding arm is provided with a sliding groove.

Through above-mentioned technical scheme, the sliding tray card can make this pneumatic locking formula measuring device slide along the slide on the slide to obtain along the ascending measuring range of slide direction.

The utility model discloses further set up to: and a fixed frame is arranged at one end of the sliding arm close to the cylinder.

Through the technical scheme, after the pneumatic locking type measuring device is moved to the specified position along the slide way, the fixing frame is buckled on the slide way, so that the measuring device is fixed.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the pneumatic locking type measuring device has the function of self-locking protection of the pneumatic device. When the pneumatic device breaks down or the gas in the cylinder is exhausted, the push-pull rod drives the connecting rod, the connecting shaft and the transmission rod to retract rapidly towards the depth direction of the cylinder cavity, and then the transmission chain and the rotating arm rotate along the rotating shaft. At the moment, the contracting brake clamps the connecting shaft to block the parallel movement of the connecting rod, the connecting shaft and the transmission rod and the rotation of the transmission chain and the rotating arm, so that the measuring device is protected by self-locking and is more stable to use. The friction resistance of the band-type brake can be increased by the resistance increasing sheet arranged on the inner wall of the band-type brake, and the self-locking protection is more effective.

(2) The pneumatically-locked measuring device can measure multiple dimensions in the rotating direction of the rotating shaft and the sliding direction of the sliding rail. The measuring range is wide, the usability is strong, and the device can be used in various occasions and under specific conditions.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of a band-type brake and a band-type brake lever of the present invention;

fig. 4 is an enlarged view of a structure at a in fig. 1.

Reference numerals: 1. a slide arm; 2. a rotating arm; 3. a measuring head; 4. a cylinder; 5. a push-pull rod; 6. a connecting shaft; 7. a transmission rod; 8. a drive chain; 9. a rotating shaft; 10. rotating the sleeve; 11. contracting brake; 12. a brake lever; 13. a resistance increasing sheet; 14. a support block; 15. a fixed mount; 16. a support bar; 17. a fixing plate; 18. a protection frame; 19. a sliding groove; 20. a support; 21. a recess.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A pneumatically-locked measuring device, as shown in FIGS. 1 and 2, includes a sliding arm 1, a rotating arm 2, and a measuring head 3. A support 20 is arranged in the middle of the upper surface of one end of the sliding arm 1, a cylinder 4 is installed on the support 20 along the length direction of the sliding arm 1, and the opening of the cylinder 4 points to the other end of the sliding arm 1. A push-pull rod 5 is arranged in the cylinder 4, and the push-pull rod 5 can slide in parallel along the cavity direction of the cylinder 4. When gas is charged into the cylinder 4, the push-pull rod 5 slides in the direction of the opening of the cylinder 4, and when gas is discharged from the cylinder 4, the push-pull rod 5 slides in the direction opposite to the opening of the cylinder 4. The end of the push-pull rod 5 outside the cylinder 4 is provided with a connecting shaft 6. The other end of the sliding arm 1 is provided with a rotating shaft 9, a rotating sleeve 10 is coaxially sleeved outside the rotating shaft 9, and the rotating sleeve 10 is fixedly connected with the rotating shaft 9 through a bolt. The welding has rotor arm 2 on rotating sleeve 10, and the one end that rotor arm 2 kept away from axis of rotation 9 is equipped with measuring head 3, and the measuring head 3 side is equipped with fixed plate 17, installs fender bracket 18 on the fixed plate 17, and fender bracket 18 is the "T" font of buckling into by the iron wire. The sliding arm 1 is connected with the rotating sleeve 10 through a transmission chain 8, a transmission rod 7 is arranged at the bending part of the transmission chain 8, and a cylindrical rod part of the transmission rod 7 is provided with an opening. The bolt is inserted into the corresponding openings of the transmission chain 8 and the transmission rod 7, and the nuts are screwed at the two ends of the bolt, so that the transmission rod 7 is fixed on the transmission chain 8. The connecting shaft 6 at the tail end of the push-pull rod 5 is tightly inserted into the opening of the transmission rod 7, so that the connecting shaft 6 is fixedly connected with the transmission rod 7, and the connecting shaft 6 cannot be separated from the transmission rod 7 when moving on a plane.

As shown in fig. 1 and 3, two circular arc-shaped band-type brakes 11 are arranged on the outer side of the connecting shaft 6, the openings of the band-type brakes 11 are exactly matched with the outer wall of the connecting shaft 6, resistance increasing sheets 13 made of rubber are arranged on the inner wall of one side of the openings of the band-type brakes 11, the surfaces of the resistance increasing sheets 13 are rough and have anti-skid lines, the resistance increasing sheets 13 are tightly attached to the connecting shaft 6, and friction resistance is applied to the connecting shaft 6 when the connecting shaft moves. The band-type brakes 11 are fixed at both ends of the sliding arm 1 in the width direction by two 'L' -shaped band-type brake 11 rods.

The bottom surface of the sliding arm 1 is provided with 3 sliding grooves 19, and the sliding grooves 19 are matched with the shape of the used slide way and can move along the slide way. One end of the sliding arm 1 close to the rotating sleeve 10 is provided with a supporting block 14, the supporting block 14 is fixed on the sliding arm 1 through a bolt and a nut, one end of the supporting block 14 close to the rotating sleeve 10 is provided with a notch 21 with the same contour as that of the rotating sleeve 10 and is abutted against the rotating sleeve 10 to support the rotating sleeve 10. One end of the sliding arm 1 close to the cylinder 4 is provided with an L-shaped fixing frame 15, the fixing frame 15 can be detached and fixed on the side surface of the sliding arm 1 during use, and the L-shaped end of the fixing frame can be buckled on the slideway so as to fix the fixing frame. The inside of rotor arm 2 is hollow, and rotor arm 2 is inside to be provided with "H" shape bracing piece 16, and one end butt of bracing piece 16 is on the inner wall of axis of rotation 9, and the other end butt is in the linking department of measuring head 3 and rotor arm 2, plays the fixed function of support to measuring head 3.

The utility model discloses a working process is: the measuring device is fixed by fastening the fixing frame 15 on the slideway after the sliding groove 19 at the lower part of the sliding arm 1 is fastened on the slideway and moves to a designated position along the slideway. The push-pull rod 5 can move in parallel along the inner cavity of the cylinder 4, so as to drive the connecting rod and the transmission rod 7 to move in parallel in the same direction. The transmission rod 7 moves to drive the transmission chain 8 to rotate, and the rotating connection pushes the rotating sleeve 10 to rotate around the rotating shaft 9, so that the sliding arm 1 rotates to be adjusted to the corresponding position of the measuring device. The protective frame 18 can protect the measuring head 3 during measurement, and prevent the measuring head 3 from being bent and damaged.

The pneumatic locking type measuring device has the function of self-locking protection of the pneumatic device. When the pneumatic device breaks down or the gas in the cylinder 4 is exhausted, the push-pull rod 5 drives the connecting rod, the connecting shaft 6 and the transmission rod 7 to rapidly retract towards the depth direction of the cavity of the cylinder 4, and then the transmission chain 8 and the rotating arm 2 rotate along the rotating shaft 9. At this moment, the band-type brake 11 clamps the connecting shaft 6 to block the parallel movement of the connecting rod, the connecting shaft 6 and the transmission rod 7 and the rotation of the transmission chain 8 and the rotating arm 2, so that the measuring device is protected from self-locking and is more stable to use. The friction resistance of the internal contracting brake 11 can be increased by the resistance increasing sheet 13 arranged on the internal wall of the internal contracting brake 11, and the self-locking protection is more effective.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a pneumatically-locked measuring device, includes slide arm (1), the one end of slide arm (1) is equipped with support (20), its characterized in that: the brake is characterized in that an air cylinder (4) is installed on the support (20), a push-pull rod (5) is arranged in the air cylinder (4), a connecting shaft (6) is arranged at one end, extending out of the air cylinder (4), of the push-pull rod (5), a rotating shaft (9) is arranged at the other end of the sliding arm (1), a rotating arm (2) is installed on the rotating shaft (9), a measuring head (3) is arranged at one end, far away from the rotating shaft (9), of the rotating arm (2), a transmission chain (8) is arranged on the sliding arm (1), one end of the transmission chain (8) is connected with the sliding arm (1), the other end of the transmission chain is connected with the rotating shaft (9), the transmission chain (8) bends towards one side of the air cylinder (4), a transmission rod (7) is arranged at the bending position, the connecting shaft (6) is connected with the transmission rod (7), a brake (11) is arranged outside the connecting shaft, the brake contracting rod (12) is fixed on the sliding arm (1).

2. A pneumatically-locked measuring device as claimed in claim 1, wherein: one end, close to the rotating shaft (9), of the rotating arm (2) is provided with a rotating sleeve (10), the rotating sleeve (10) is sleeved outside the rotating shaft (9), the rotating sleeve (10) winds the rotating shaft (9) to rotate, and the rotating arm (2) and the transmission chain (8) are fixedly connected with the rotating sleeve (10).

3. A pneumatically-locked measuring device as claimed in claim 2, wherein: one end, close to the rotating shaft (9), of the sliding arm (1) is provided with a supporting block (14), a notch (21) is formed in the supporting block (14), and the notch (21) is abutted to the rotating sleeve (10).

4. A pneumatically-locked measuring device as claimed in claim 1, wherein: the inside cavity of rotor arm (2), inside bracing piece (16) that is provided with of rotor arm (2), bracing piece (16) closely butt in the joint department of measuring head (3) with rotor arm (2).

5. A pneumatically-locked measuring device as claimed in claim 1, wherein: the side of the measuring head (3) is provided with a fixing plate (17), and the fixing plate (17) is provided with a protection frame (18).

6. A pneumatically-locked measuring device as claimed in claim 1, wherein: the inner wall of the band-type brake (11) is provided with a resistance increasing sheet (13), and the resistance increasing sheet (13) is tightly abutted to the connecting shaft (6).

7. A pneumatically-locked measuring device as claimed in claim 1, wherein: the bottom surface of the sliding arm (1) is provided with a sliding groove (19).

8. A pneumatically-locked measuring device as claimed in claim 1, wherein: and a fixed frame (15) is arranged at one end of the sliding arm (1) close to the cylinder (4).