CN212653028U - Cylinder type locking and clamping device - Google Patents

Abstract

The utility model discloses a cylinder type locking and clamping device, which comprises a movable positioning part extending into one end of a tubular workpiece for positioning, a fixed positioning part for abutting against and positioning the other end of the workpiece, and a driving device for driving the movable positioning part to move; the device also comprises a circumferential surface abutting positioning device for abutting and positioning the circumferential surface of the tubular workpiece. When a workpiece is clamped, one end of the tubular workpiece is abutted and contacted with the abutting boss of the fixed positioning part, so that the first cylinder on the abutting boss extends into the tubular workpiece, then the second cylinder of the movable positioning part is driven by the cylinder to extend into the other end of the tubular workpiece, and finally the driving handle of the circumferential abutting and positioning device drives the cam shaft, so that the protruding part of the cam shaft is abutted and contacted with the circumferential surface of the tubular workpiece. The present case is through carrying out diversified clamping position to the tubulose work piece, has solved the tubulose work piece because the centre gripping is unstable stable, in the course of working, appears removing, influences the problem of the precision of processing.

Description

Cylinder type locking and clamping device

Technical Field

The utility model relates to an anchor clamps field, concretely relates to cylinder type lock solid clamping device.

Background

In the machining process, engraving or other processing needs to be performed on the surfaces of some workpieces frequently, a cylindrical workpiece with a round hole as shown in fig. 1 needs to be processed, and the conventional clamp only horizontally clamps and positions two ends of the workpiece, so that the workpiece is easy to move in the vertical direction in the processing process, and the processing precision is affected.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The utility model discloses a main aim at provides a cylinder type lock solid clamping device, it is stable inadequately to the centre gripping of work piece in solving current anchor clamps, leads to the work piece to take place to remove easily in the course of working, influences the problem of machining precision.

In order to achieve the above purpose, the solution of the present invention is: the cylinder type locking and clamping device comprises a movable positioning part, a fixed positioning part and a driving device, wherein the movable positioning part extends into one end of a tubular workpiece to be positioned, the fixed positioning part is used for abutting against and positioning the other end of the tubular workpiece, and the driving device is used for driving the movable positioning part to move; the device also comprises a circumferential surface abutting positioning device for abutting and positioning the circumferential surface of the tubular workpiece.

Furthermore, the circumferential surface abutting positioning device comprises a cam shaft which abuts against and contacts with the circumferential surface of the tubular workpiece, a shaft seat for bearing the cam shaft, and a driving handle for driving the cam shaft to rotate.

Further, the camshaft includes a raised portion between the two ends.

Furthermore, the two ends of the camshaft are also provided with a rotary connecting part which is rotatably connected with the shaft seat.

Furthermore, the driving handle is fixedly arranged on the rotary connecting part and is positioned on the outer side of the shaft seat.

Further, the camshaft is further provided with a limiting abutting block for limiting and abutting against the camshaft, and the limiting abutting block is located on the inner side of the shaft seat.

Furthermore, the fixed positioning component comprises an abutting boss abutting and contacting one end of the tubular workpiece, and a first supporting seat bearing the abutting table.

Furthermore, the abutting boss is also provided with a first column body extending into one end of the tubular workpiece.

Further, the movable positioning component comprises a second column body extending into the other end of the tubular workpiece and a second supporting seat for bearing the second column body.

Furthermore, a guide sliding hole for the second column body to slide is formed in the second supporting seat.

Further, the device also comprises a third supporting seat for bearing the driving device.

Further, the driving device is an air cylinder.

Further, the output shaft of the air cylinder is fixedly connected with one end of the second cylinder.

Furthermore, a fixed connecting plate is arranged between the side face of the second supporting seat and the side face of the third supporting seat.

Furthermore, the device also comprises an installation bottom plate for bearing and installing the first supporting seat, the second supporting seat, the third supporting seat and the shaft seat.

After the structure of the oil adding device is adopted, the utility model relates to a cylinder type locking clamping device at first supports the contact with the boss of supporting of fixed positioning part with tubulose work piece one end when the clamping work piece, makes to support in the boss on the first cylinder stretches into the tubulose work piece, then stretches into the other end of tubulose work piece with the second cylinder of cylinder drive mobile positioning part, will at last support positioner's driving handle drive camshaft global again, makes the bulge of camshaft and the global contact of supporting of tubulose work piece. Compared with the prior art, the scheme can clamp and position the tubular workpiece in a multi-direction manner, so that the tubular workpiece can be clamped more stably, and the tubular workpiece cannot move to influence the machining precision in the machining process.

Drawings

FIG. 1 is a schematic view of a workpiece clamped by the present invention;

FIG. 2 is a schematic perspective view of the present invention;

fig. 3 is a front view of the camshaft of the present invention;

fig. 4 is a schematic view of the usage state of the present invention.

In the figure: 1-a tubular workpiece; 2-a circumferential surface abutting positioning device, 21-a cam shaft, 211-a bulge part, 212-a rotary connecting part, 22-a driving handle, 23-a shaft seat and 24-a limiting abutting block; 3-fixing a positioning part, 31-abutting bosses, 32-a first supporting seat and 33-a first column body; 4-moving a positioning component, 41-a second column, 42-a second supporting seat and 421-a guide sliding hole; 5-a driving device, 51-a third supporting seat and 6-a fixed connecting plate; 7-installing a bottom plate.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

The cylinder type locking and clamping device shown in fig. 1-4 comprises a movable positioning part 4 extending into one end of a tubular workpiece 1 for positioning, a fixed positioning part 3 abutting against and positioning the other end of the tubular workpiece 1, and a driving device 5 driving the movable positioning part 4 to move; the device also comprises a circumferential surface abutting positioning device 2 for abutting and positioning the circumferential surface of the tubular workpiece 1. When clamping the workpiece, firstly, one end of the tubular workpiece 1 abuts against and contacts the abutting boss 31 of the fixed positioning component 3, so that the first cylinder 33 on the abutting boss 31 extends into the tubular workpiece 1, then the cylinder drives the second cylinder 41 of the movable positioning component 4 to extend into the other end of the tubular workpiece 1, and finally, the driving handle 22 of the circumferential abutting positioning device 2 drives the cam shaft 21, so that the bulge part 211 of the cam shaft 21 abuts against and contacts with the circumferential surface of the tubular workpiece 1. The tubular workpiece 1 is clamped and positioned in multiple directions, so that the tubular workpiece 1 can be clamped more stably, and the movement cannot occur in the machining process to influence the machining precision.

Preferably, the circumferential abutting positioning device 2 comprises a cam shaft 21 abutting and contacting with the circumferential surface of the tubular workpiece 1, a shaft seat 23 bearing the cam shaft 21, and a driving handle 22 driving the cam shaft 21 to rotate. The operation can be very conveniently carried out by using the cam shaft 21, and when the circumferential surface is operated to abut against the positioning device 2, only the cam shaft 21 needs to be rotated until the cam shaft 21 abuts against and contacts the surface of the tubular workpiece 1, so that the tubular workpiece 1 can move at the upper part in the vertical direction. In addition, the cam shaft 21 is driven by the driving handle 22, which is more convenient and labor-saving.

Preferably, the camshaft 21 includes a raised portion 211 between the ends. The cam shaft 21 is rotated until the bulging portion 211 of the cam shaft 21 comes into abutting contact with the circumferential surface of the tubular workpiece 1.

Preferably, both ends of the camshaft 21 are further provided with a rotary connecting part 212 rotatably connected with the shaft seat 23. The rotary connecting portions 212 at both ends of the camshaft 21 are rotatably connected to the shaft seats 23 so that the camshaft 21 can rotate on the shaft seats 23.

Preferably, the driving handle 22 is fixedly installed on the rotation connection portion 212 and is located at the outer side of the shaft seat 23. The driving handle 22 is installed outside the shaft seat 23 to facilitate the operation of the worker.

Preferably, the camshaft 21 is further provided with a limiting abutting block 24 for limiting and abutting the camshaft 21, and the limiting abutting block 24 is located on the inner side of the shaft seat 23. The two limit abutting blocks 24 are respectively located on the inner sides of the shaft seats 23 and abut against and contact the shaft seats 23, and the cam shaft 21 is prevented from shaking.

Preferably, the fixed positioning component 3 comprises an abutting boss 31 abutting and contacting with one end of the tubular workpiece 1, and a first supporting seat 32 bearing an abutting table. When the tubular workpiece 1 is clamped, one end of the tubular workpiece 1 is firstly abutted and contacted with the abutting boss 31, and one end of the tubular workpiece 1 is firstly limited.

Preferably, the abutting boss 31 is further provided with a first column 33 extending into one end of the tubular workpiece 1. The first column 33 abutting against the boss 31 can extend into the tubular workpiece 1 to prevent the tubular workpiece 1 from sliding downwards.

Preferably, the movable positioning member 4 includes a second column 41 extending into the other end of the tubular workpiece 1, and a second support seat 42 for supporting the second column 41. After one end of the tubular workpiece 1 is abutted and limited, the other end of the tubular workpiece 1 needs to be limited, and at this time, the second cylinder 41 of the movable positioning part 4 needs to extend into the other end of the tubular workpiece 1.

Preferably, the second support seat 42 is provided with a guide sliding hole 421 for the second column 41 to slide. Since the second cylinder 41 is extended into the tubular workpiece 1 by sliding, the guide slide hole 421 accommodates the sliding of the second cylinder 41 and functions as a guide.

Preferably, a third support seat 51 is also included, which carries the driving means 5. The third support seat 51 may support the fixedly mounted driving device 5.

Preferably, the driving means 5 is a cylinder. The second cylinder 41 can be driven by the air cylinder.

Preferably, the output shaft of the cylinder is fixedly connected with one end of the second cylinder 41. The output shaft of the cylinder and one end of the second cylinder 41 can be fixedly connected through a nut, so that the cylinder can stably drive the second cylinder 41.

Preferably, a fixing connection plate 6 is disposed between a side surface of the second support seat 42 and a side surface of the third support seat 51. The fixed connecting plate 6 is adopted to fixedly connect the two, so that the second supporting seat 42 can be prevented from inclining due to overlarge driving force when the cylinder drives the second column body 41.

Preferably, the mounting base plate 7 is further provided with a first support seat 32, a second support seat 42, a third support seat 51 and a shaft seat 23. The first support seat 32, the second support seat 42, the third support seat 51 and the shaft seat 23 are fixedly installed through the installation bottom plate 7, so that the clamping of the tubular workpiece 1 is more stable.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims (15)

1. A cylinder type locking and clamping device comprises a movable positioning part, a fixed positioning part and a driving device, wherein the movable positioning part extends into one end of a tubular workpiece to be positioned, the fixed positioning part is used for abutting against and positioning the other end of the tubular workpiece, and the driving device is used for driving the movable positioning part to move; the method is characterized in that: the device also comprises a circumferential surface abutting positioning device for abutting and positioning the circumferential surface of the tubular workpiece.

2. The cylinder locking clamping device according to claim 1, wherein: the circumferential surface abutting positioning device comprises a cam shaft in abutting contact with the circumferential surface of the tubular workpiece, a shaft seat for bearing the cam shaft and a driving handle for driving the cam shaft to rotate.

3. The cylinder locking clamp of claim 2, wherein: the camshaft includes a raised portion between two ends.

4. A cylinder locking clamping device according to claim 3, characterised in that: and the two ends of the camshaft are also provided with a rotary connecting part which is rotatably connected with the shaft seat.

5. The cylinder locking clamping device according to claim 4, wherein: the driving handle is fixedly arranged on the rotating connecting part and is positioned on the outer side of the shaft seat.

6. The cylinder locking clamping device according to claim 5, wherein: the camshaft is further provided with a limiting and propping block for limiting and propping the camshaft, and the limiting and propping block is positioned on the inner side of the shaft seat.

7. The cylinder locking clamping device according to claim 1, wherein: the fixed positioning part comprises an abutting boss abutting against and contacting one end of the tubular workpiece and a first supporting seat bearing the abutting table.

8. The cylinder locking clamp of claim 7 wherein: the abutting boss is also provided with a first cylinder extending into one end of the tubular workpiece.

9. The cylinder locking clamping device according to claim 1, wherein: the movable positioning component comprises a second column body extending into the other end of the tubular workpiece and a second supporting seat for bearing the second column body.

10. The cylinder locking clamp of claim 9 wherein: and a guide sliding hole for the second column body to slide is formed in the second supporting seat.

11. The cylinder locking clamp of claim 10 wherein: the device also comprises a third supporting seat for bearing the driving device.

12. The cylinder locking clamp of claim 11 wherein: the driving device is an air cylinder.

13. The cylinder locking clamp of claim 12 wherein: and an output shaft of the cylinder is fixedly connected with one end of the second cylinder.

14. The cylinder locking clamp of claim 11 wherein: and a fixed connecting plate is arranged between the side surface of the second supporting seat and the side surface of the third supporting seat.

15. The cylinder locking clamping device according to any one of claims 1 to 13, characterized in that: the support device also comprises an installation bottom plate for bearing and installing the first support seat, the second support seat, the third support seat and the shaft seat.

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