Workpiece clamping device

Abstract

The utility model relates to a workpiece clamping device, and relates to the technical field of work fixtures, the workpiece clamping device comprises a mounting base, a plurality of air cylinders are arranged at the edge of the upper end of the mounting base, a fixing assembly used for fixing the air cylinders on the mounting base is arranged on the mounting base, and the telescopic direction of the air cylinders is perpendicular to the upper end face of the mounting base; a connecting rod is arranged at the end of a piston rod of the air cylinder, one end of the connecting rod is rotationally connected to the piston rod of the air cylinder, the other end of the connecting rod is fixedly connected with a downward pressing rod, the downward pressing rod is located on the side, facing the installation base, of the connecting rod, and the end, away from the connecting rod, of the downward pressing rod is connected with a downward pressing block. The workpiece fixing device has the effect of conveniently fixing irregular workpieces.

Description

Technical Field

[0001] The present application relates to the technical field of tooling fixtures, and in particular to a workpiece clamping device. Background Art

[0002] The workpiece clamping frame used for clamping the workpiece in the prior art is usually composed of a fixed clamping frame and a movable clamping frame. The workpiece is clamped by locking structures on the movable clamping frame and the fixed clamping frame, such as locking teeth or positioning grooves. The clamping is relatively stable for workpieces with regular shapes, but the clamping force is limited for irregular workpieces, and the workpiece is easy to loosen. Utility Model Content

[0003] In order to facilitate the fixation of irregular workpieces, the present application provides a workpiece clamping device.

[0004] The workpiece clamping device provided in this application adopts the following technical solution:

[0005] A workpiece clamping device comprises a mounting seat, a plurality of cylinders are arranged at the edge of the upper end of the mounting seat, a fixing assembly for fixing the cylinders on the mounting seat is arranged on the mounting seat, the extension and retraction direction of the cylinders is perpendicular to the upper end surface of the mounting seat, a connecting rod is arranged at the end of the piston rod of the cylinder, one end of the connecting rod is rotatably connected to the piston rod of the cylinder, and a downward pressure rod is fixedly connected to the other end of the connecting rod, the downward pressure rod is located on the side of the connecting rod facing the mounting seat, and a downward pressure block is connected to the end of the downward pressure rod away from the connecting rod.

[0006] By adopting the above technical scheme, the workpiece to be processed can be placed on the mounting seat, and then the connecting rod is rotated to place the lower pressure rod above the workpiece to be processed. Then, by starting the cylinder to shrink the cylinder, the connecting rod drives the lower pressure rod to move to one side of the workpiece, and finally the lower pressure block is pressed against the workpiece, thereby quickly fixing the workpiece on the mounting seat, and then the fixing position of the workpiece can be changed by rotating the connecting rod, thereby achieving a fixing effect on workpieces of various shapes and specifications.

[0007] Optionally, a plurality of threaded holes are formed at the upper end of the mounting seat, the fixing assembly includes a base, the cylinder is fixedly connected to the base, a plurality of fixing bolts are threadedly connected to the base, and the rods of the fixing bolts pass through the base and are threadedly connected in the threaded holes.

[0008] By adopting the above technical solution, the base can be quickly fixed or removed from the mounting seat by rotating the fixing bolts. At the same time, the position of the base can be changed by threading the fixing bolts into threaded holes at different positions, thereby changing the downward pressing position of the downward pressing block.

[0009] Optionally, the lower pressing rod is provided with threads, and the lower pressing block is threadedly connected to the lower pressing rod.

[0010] By adopting the above technical solution, the lower pressing block can be rotated to move along the length direction of the lower pressing rod, thereby adjusting the height of the lower pressing block.

[0011] Optionally, a rubber sleeve is fixedly connected to the outer wall of the lower pressing block.

[0012] By adopting the above technical solution, the rubber sleeve can protect the workpiece, thereby reducing the wear of the lower pressing block on the workpiece.

[0013] Optionally, a rubber pad is fixedly connected to one end of the rubber sleeve close to the base.

[0014] By adopting the above technical solution, the rubber pad can be abutted against the workpiece, thereby isolating the rubber sleeve and the workpiece, thereby reducing the wear between the rubber sleeve and the workpiece.

[0015] Optionally, the connecting rod includes a fixed portion and a movable portion, the fixed portion is slidably inserted into the movable portion, and a locking member for fixing the fixed portion and the movable portion is provided between the fixed portion and the movable portion.

[0016] By adopting the above technical solution, the fixation between the fixed part and the movable part can be cancelled by adjusting the locking member, and then the length of the connecting rod can be changed by sliding the movable part, thereby changing the pressing position of the pressing rod.

[0017] Optionally, the locking member is configured as a locking bolt, the locking bolt is threadedly connected to the movable portion, and a rod portion of the locking bolt passes through the movable portion and abuts against the fixed portion.

[0018] By adopting the above technical solution, the locking bolt can be rotated to make the locking bolt press against the fixed part or the rod of the locking bolt can be separated from the fixed part, thereby quickly achieving the fixation between the fixed part and the movable part and canceling the fixation between the fixed part and the movable part.

[0019] Optionally, a layer of protective pad is fixedly connected to the upper end of the mounting seat.

[0020] By adopting the above technical solution, the friction between the workpiece and the mounting seat can be improved by the rubber pad, and the mounting seat can be protected.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The cylinder contracts to make the connecting rod drive the lower pressure rod to move to one side of the workpiece, and finally make the lower pressure block press against the workpiece, thereby quickly fixing the workpiece on the mounting seat, and then the fixing position of the workpiece can be changed by rotating the connecting rod, thereby achieving a fixing effect on workpieces of various shapes and specifications;

[0023] 2. The lower pressing block can be rotated to move along the length direction of the lower pressing rod, thereby adjusting the height of the lower pressing block;

[0024] 3. The fixing between the fixed part and the movable part can be cancelled by adjusting the locking piece, and then the length of the connecting rod can be changed by sliding the movable part, thereby changing the pressing position of the pressing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0026] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0027] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0028] In the figure, 1. mounting base; 11. threaded hole; 2. cylinder; 3. fixing assembly; 31. base; 32. fixing bolt; 4. connecting rod; 41. fixing part; 42. movable part; 43. locking piece; 5. pressing rod; 6. pressing block; 7. rubber sleeve; 8. rubber pad; 9. protective pad. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0030] Example 1

[0031] A workpiece clamping device, referring to Figure 1 The utility model comprises a mounting seat 1, which is set in a truncated cone shape, and two cylinders 2 are arranged at the edge of the upper end of the mounting seat 1, and the extension direction of the cylinders 2 is perpendicular to the upper end surface of the mounting seat 1. The mounting seat 1 is provided with a fixing component 3 for fixing the cylinders 2 on the mounting seat 1.

[0032] The fixing assembly 3 includes a base 31, which is set in a rectangular parallelepiped shape and the cylinder 2 is fixedly connected to the mounting seat 1. Two fixing bolts 32 are threadedly connected to the upper end of the base 31, and a plurality of threaded holes 11 are opened at the edge of the upper end surface of the mounting seat 1. The rods of the fixing bolts 32 pass through the base 31 and are threadedly connected in the threaded holes 11.

[0033] Thus, the fixing bolt 32 can be rotated to disengage the rod of the fixing bolt 32 from the threaded hole 11, thereby realizing the disassembly of the base 31 and the cylinder 2 on the mounting seat 1. At the same time, the fixing bolt 32 can be threaded into different threaded holes 11, thereby changing the position of the cylinder 2 on the mounting seat 1.

[0034] Reference Figure 1 and Figure 2 The piston rod end of the cylinder 2 is provided with a connecting rod 4, and the length direction of the connecting rod 4 is parallel to the upper end surface of the mounting seat 1. One end of the connecting rod 4 is rotatably connected to the piston rod of the cylinder 2, and the other end of the connecting rod 4 is provided with a pressing rod 5. The length direction of the pressing rod 5 is perpendicular to the upper end surface of the mounting seat 1, one end of the pressing rod 5 is fixedly connected to the lower end of the connecting rod 4, and a thread is provided on the pressing rod 5. The end of the other end of the pressing rod 5 is threadedly connected with a pressing block 6, and the pressing block 6 is set to be cylindrical.

[0035] Thus, the lower pressing block 6 can be rotated to move along the length direction of the lower pressing rod 5, thereby adjusting the height of the lower pressing block 6 according to the shape of the workpiece.

[0036] In order to reduce the wear of the lower pressing block 6 on the workpiece, a rubber sleeve 7 is fixedly connected to the outer wall of the lower pressing block 6 , and a rubber pad 8 is fixedly connected to one end of the rubber sleeve 7 close to the base 31 . The diameter of the rubber pad 8 is larger than that of the rubber sleeve 7 .

[0037] The implementation principle of Example 1 is: place the workpiece to be processed on the mounting seat 1, then rotate the connecting rod 4 to place the lower pressure rod 5 above the workpiece to be processed, and adjust the distance between the lower pressure block 6 and the workpiece by rotating the lower pressure block 6, then start the cylinder 2 to shrink the cylinder 2, so that the connecting rod 4 drives the lower pressure rod 5 to move to one side of the workpiece, and finally make the lower pressure block 6 press against the workpiece, thereby fixing the workpiece on the mounting seat 1.

[0038] Example 2

[0039] The difference from the first embodiment is that a layer of protective pad 9 is fixedly connected to the upper end surface of the mounting seat 1 .

[0040] The connecting rod 4 includes a fixed portion 41 and a movable portion 42, one end of the fixed portion 41 is rotatably connected to the piston rod of the cylinder 2, the other end of the fixed portion 41 is slidably inserted into the end of the movable portion 42 away from the piston of the cylinder 2, and one end of the pressing rod 5 is fixedly connected to the movable portion 42. A locking member 43 is provided between the fixed portion 41 and the movable portion 42 for fixing the two.

[0041] In this embodiment, the locking member 43 is configured as a locking bolt, which is threadedly connected to the side wall of the movable portion 42 , and the rod of the locking bolt passes through the side wall of the movable portion 42 and is pressed against the side wall of the fixed portion 41 .

[0042] The implementation principle of Example 2 is: the rod of the locking bolt can be disengaged from the fixed part 41 by rotating the locking bolt, thereby canceling the fixation between the fixed part 41 and the movable part 42, and then the pressing position of the pressing rod 5 can be changed by sliding the movable part 42.

[0043] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A workpiece clamping device, characterized in that: The invention comprises a mounting seat (1), wherein a plurality of cylinders (2) are arranged at the edge of the upper end of the mounting seat (1), and a fixing assembly (3) for fixing the cylinders (2) on the mounting seat (1) is arranged on the mounting seat (1), and the telescopic direction of the cylinders (2) is perpendicular to the upper end surface of the mounting seat (1), and a connecting rod (4) is arranged at the end of the piston rod of the cylinder (2), and one end of the connecting rod (4) is rotatably connected to the piston rod of the cylinder (2), and the other end of the connecting rod (4) is fixedly connected to a pressing rod (5), and the pressing rod (5) is located on the side of the connecting rod (4) facing the mounting seat (1), and the end of the pressing rod (5) away from the connecting rod (4) is connected to a pressing block (6).

2. A workpiece clamping device according to claim 1, characterized in that: A plurality of threaded holes (11) are formed at the upper end of the mounting seat (1); the fixing assembly (3) comprises a base (31); the cylinder (2) is fixedly connected to the base (31); a plurality of fixing bolts (32) are threadedly connected to the base (31); and the rods of the fixing bolts (32) pass through the base (31) and are threadedly connected to the threaded holes (11).

3. A workpiece clamping device according to claim 1, characterized in that: The lower pressing rod (5) is provided with a thread, and the lower pressing block (6) is threadedly connected to the lower pressing rod (5).

4. A workpiece clamping device according to claim 1, characterized in that: A rubber sleeve (7) is fixedly connected to the outer wall of the lower pressing block (6).

5. A workpiece clamping device according to claim 4, characterized in that: A rubber pad (8) is fixedly connected to one end of the rubber sleeve (7) close to the mounting seat (1).

6. A workpiece clamping device according to claim 1, characterized in that: The connecting rod (4) comprises a fixed portion (41) and a movable portion (42); the fixed portion (41) is slidably inserted into the movable portion (42); and a locking member (43) is provided between the fixed portion (41) and the movable portion (42) for fixing the two.

7. A workpiece clamping device according to claim 6, characterized in that: The locking member (43) is configured as a locking bolt, the locking bolt being threadedly connected to the movable portion (42), and the rod portion of the locking bolt passing through the movable portion (42) and abutting against the fixed portion (41).

8. A workpiece clamping device according to claim 1, characterized in that: A layer of protection pad (9) is fixedly connected to the upper end of the mounting seat (1).

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