Full-automatic chuck type machine tool clamp

Abstract

The utility model discloses a full-automatic chuck type machine tool clamp, belongs to the technical field of chuck type clamps, aims at solving the problems that threads are easy to abrade after being used for a long time, the clamp is scrapped, clamping jaws are easy to be adhered by oil stains or sweeps, and the clamping jaws are inconvenient to disassemble and clean, and comprises a base, a fixed disc, a mounting disc, a clamping mechanism and a connecting mechanism, the fixing disc is fixedly connected to the upper portion of the base, the mounting disc is fixedly connected to the upper portion of the fixing disc, the clamping mechanism is arranged in the mounting disc, the rotating disc is rotationally connected to the bottom of the mounting disc, the L-shaped connecting rod is rotationally connected to the bottom face of the rotating disc, and the U-shaped block is rotationally connected to the other end of the L-shaped connecting rod. The connecting block is fixedly connected to the side, away from the L-shaped connecting rod, of the U-shaped block. By means of the clamping mechanism, the four clamping jaws can be driven by the air cylinder to move, a workpiece is automatically clamped, and the automation of the clamp and the machining efficiency of the workpiece are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chuck type fixtures, and in particular relates to a full-automatic chuck type machine tool fixture. Background Art

[0002] Chuck type fixture is a common machining fixture, mainly used to clamp the workpiece to keep it fixed during the machining process. Chuck type fixture usually consists of chuck, jaws, pull rod, base and other parts, among which the chuck is the main clamping part and the jaws are used to clamp the workpiece. According to the processing requirements, different chuck type fixtures can be selected, such as three-jaw chuck, four-jaw chuck, etc.

[0003] When machining cylindrical workpieces, it is inconvenient to fix them with general clamps, and three-jaw chucks or four-jaw single-action chucks are usually used to fix the workpieces. In the prior art, whether it is a three-jaw chuck or a four-jaw chuck, the combination of threads and screws is used to make the movable jaws move radially to clamp the workpiece. The threads are easily worn out after long-term use, causing the clamp to be scrapped, affecting the service life of the clamp. In addition, during the use of the clamp, the jaws are easily adhered to by oil or waste, which makes it inconvenient to disassemble and clean the jaws, affecting the clamping effect of the jaws.

[0004] Therefore, a fully automatic chuck-type machine tool fixture is needed to solve the problems in the prior art that the threads are easily worn out after long-term use, causing the fixture to be scrapped, and the claws are easily sticky with oil or waste, making it difficult to disassemble and clean the claws. Utility Model Content

[0005] The purpose of the utility model is to provide a fully automatic chuck type machine tool fixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic chuck-type machine tool fixture, comprising a base, a fixed plate, a mounting plate, a clamping mechanism and a connecting mechanism, wherein the fixed plate is fixedly connected to the top of the base, the mounting plate is fixedly connected to the top of the fixed plate, and the clamping mechanism is arranged inside the mounting plate.

[0007] The clamping mechanism consists of a rotating disk, an L-shaped connecting rod, a U-shaped block, a connecting block, a cross block, a claw and a cylinder. The rotating disk is rotatably connected to the bottom of the mounting disk, the L-shaped connecting rod is rotatably connected to the bottom surface of the rotating disk, the U-shaped block is rotatably connected to the other end of the L-shaped connecting rod, the connecting block is fixedly connected to a side of the U-shaped block away from the L-shaped connecting rod, the cross block is fixedly connected to the top of the connecting block, and the claw is arranged above the cross block through a connecting mechanism.

[0008] It should be noted in the solution that there are four L-shaped connecting rods, which are symmetrically arranged along the center of the rotating disk.

[0009] It is further worth noting that the top surface of the clamping claw is arranged in a stepped shape, and a cross groove matching the cross block is provided inside the mounting plate.

[0010] It should be further explained that the cylinder is fixedly connected to the inner wall of the fixed plate, and the output end of the cylinder is fixedly connected to the bottom surface of the front U-shaped block.

[0011] As a preferred embodiment, the connecting mechanism consists of a connecting plate, a pressing plate, a spring, a positioning pin and a fixed block, a rectangular groove is provided on the top surface of the cross block, the connecting plate is symmetrically slidably connected to the upper rectangular groove of the cross block, the pressing plate is fixedly connected to one side of the connecting plate, and an anti-slip groove is provided on the end of the pressing plate away from the connecting plate.

[0012] As a preferred embodiment, the spring is fixedly connected between the connecting plate and the inner wall of the groove, the positioning pin is fixedly connected to the other end of the connecting plate, and the end of the positioning pin away from the connecting plate is set to be circular.

[0013] As a preferred implementation, the fixing block is fixedly connected to the bottom of the claw, and positioning grooves matching the positioning pins are formed on both sides of the fixing block.

[0014] Compared with the prior art, the fully automatic chuck type machine tool fixture provided by the utility model has at least the following beneficial effects:

[0015] (1) Through the clamping mechanism, the four claws can be driven by the cylinder to move and automatically clamp the workpiece, thereby improving the automation of the fixture and the processing efficiency of the workpiece.

[0016] (2) The connection mechanism can be used to quickly disassemble and assemble the clamping claws, making it easy for workers to remove the clamping claws for cleaning, thereby improving the flexibility of the clamp and improving the clamping effect of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the cross block of the utility model;

[0020] Figure 4 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1, base; 2, fixed plate; 3, mounting plate; 4, clamping mechanism; 5, connecting mechanism; 401, rotating plate; 402, L-shaped connecting rod; 403, U-shaped block; 404, connecting block; 405, cross block; 406, claw; 407, cylinder; 501, connecting plate; 502, pressing plate; 503, spring; 504, positioning pin; 505, fixing block; 506, positioning groove. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the embodiments.

[0023] See also Figure 1-4 The utility model provides a fully automatic chuck type machine tool fixture, including a base 1, a fixed plate 2, a mounting plate 3, a clamping mechanism 4 and a connecting mechanism 5. The fixed plate 2 is fixedly connected to the top of the base 1, the mounting plate 3 is fixedly connected to the top of the fixed plate 2, and the clamping mechanism 4 is arranged inside the mounting plate 3.

[0024] The clamping mechanism 4 is composed of a rotating disk 401, an L-shaped connecting rod 402, a U-shaped block 403, a connecting block 404, a cross block 405, a claw 406 and a cylinder 407. The rotating disk 401 is rotatably connected to the bottom of the mounting disk 3, the L-shaped connecting rod 402 is rotatably connected to the bottom surface of the rotating disk 401, the U-shaped block 403 is rotatably connected to the other end of the L-shaped connecting rod 402, the connecting block 404 is fixedly connected to a side of the U-shaped block 403 away from the L-shaped connecting rod 402, the cross block 405 is fixedly connected to the top of the connecting block 404, and the claw 406 is arranged above the cross block 405 through the connecting mechanism 5.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that there are four L-shaped connecting rods 402, which are symmetrically arranged along the center of the rotating disk 401;

[0026] The rotating disk 401 is rotated to synchronously drive the L-shaped connecting rod 402 to rotate, thereby ensuring the synchronization of the operation of the clamping mechanism 4.

[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that the top surface of the claw 406 is set in a stepped shape, and the interior of the mounting plate 3 is provided with a cross groove adapted to the cross block 405;

[0028] The cross block 405 is slidably connected to the inside of the mounting plate 3 to ensure the stability of the movement of the upper claw 406.

[0029] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth to explain in detail that the cylinder 407 is fixedly connected to the inner wall of the fixed plate 2, and the output end of the cylinder 407 is fixedly connected to the bottom surface of the front end U-shaped block 403;

[0030] The cylinder 407 is provided to drive the U-shaped block 403 at the front end to move, drive the L-shaped connecting rod 402 at the front end to rotate, and then drive the rotating disk 401 to rotate.

[0031] According to the above working process, it can be known that the clamping mechanism 4 can drive the four claws 406 to move through the cylinder 407 to automatically clamp the workpiece, thereby improving the automation of the fixture and the processing efficiency of the workpiece.

[0032] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the connecting mechanism 5 is composed of a connecting plate 501, a pressing plate 502, a spring 503, a positioning pin 504 and a fixing block 505. A rectangular groove is provided on the top surface of the cross block 405. The connecting plate 501 is symmetrically slidably connected to the inside of the upper rectangular groove of the cross block 405. The pressing plate 502 is fixedly connected to one side of the connecting plate 501, and an anti-slip groove is provided at one end of the pressing plate 502 away from the connecting plate 501.

[0033] The anti-slip grooves are provided to facilitate the user to push the pressing plate 502, thereby improving the practicality of the device.

[0034] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth to explain in detail that the spring 503 is fixedly connected between the connecting plate 501 and the inner wall of the groove, the positioning pin 504 is fixedly connected to the other end of the connecting plate 501, and the end of the positioning pin 504 away from the connecting plate 501 is set to be circular;

[0035] Due to the elastic effect of the spring 503 , the positioning pin 504 is stably inserted into the positioning groove 506 , thereby ensuring the stability of the connection between the fixing block 505 and the cross block 405 .

[0036] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth to explain in detail that the fixing block 505 is fixedly connected to the bottom of the claw 406, and the two sides of the fixing block 505 are provided with positioning grooves 506 which are matched with the positioning pin 504;

[0037] The positioning pin 504 is inserted into the positioning groove 506 to connect the fixing block 505 and the cross block 405 , and then the positioning pin 504 is separated from the positioning groove 506 to facilitate the removal of the claw 406 .

[0038] This solution has the following working process: when in use, the workpiece is placed in the middle above the mounting disk 3, and then the cylinder 407 is controlled to drive the U-shaped block 403 at the front end to move, and the rotating disk 401 is driven to rotate through the front L-shaped connecting rod 402, and the other three L-shaped connecting rods 402 are driven to rotate through the rotating disk 401. At the same time, the four claws 406 are driven to move through the cross block 405 until they are close to the outer wall of the workpiece to clamp and fix the workpiece; when the claws 406 need to be removed for cleaning, the two pressing plates 502 are pushed in the opposite direction, and the positioning pins 504 are driven to disengage from the inside of the positioning groove 506 through the connecting plate 501 to release the connection with the fixing block 505, and then the claws 406 are removed upwards to clean the claws 406.

[0039] In summary: through the set clamping mechanism 4, the four claws 406 can be driven by the cylinder 407 to move, automatically clamp the workpiece, and improve the automation of the fixture and the processing efficiency of the workpiece; through the set connecting mechanism 5, the claws 406 can be quickly disassembled and assembled, which is convenient for the staff to remove the claws 406 for cleaning, thereby improving the flexibility of the fixture and at the same time improving the clamping effect of the fixture.

Claims

1. A fully automatic chuck-type machine tool fixture, comprising a base (1), a fixing plate (2), a mounting plate (3), a clamping mechanism (4) and a connecting mechanism (5), characterized in that: The fixing plate (2) is fixedly connected to the top of the base (1), the mounting plate (3) is fixedly connected to the top of the fixing plate (2), and the clamping mechanism (4) is arranged inside the mounting plate (3); The clamping mechanism (4) is composed of a rotating disk (401), an L-shaped connecting rod (402), a U-shaped block (403), a connecting block (404), a cross block (405), a clamping claw (406) and a cylinder (407); the rotating disk (401) is rotatably connected to the bottom of the mounting disk (3); the L-shaped connecting rod (402) is rotatably connected to the bottom surface of the rotating disk (401); the U-shaped block (403) is rotatably connected to the other end of the L-shaped connecting rod (402); the connecting block (404) is fixedly connected to a side of the U-shaped block (403) away from the L-shaped connecting rod (402); the cross block (405) is fixedly connected to the top of the connecting block (404); and the clamping claw (406) is arranged above the cross block (405) through a connecting mechanism (5).

2. The fully automatic chuck type machine tool fixture according to claim 1, characterized in that: There are four L-shaped connecting rods (402) which are symmetrically arranged along the center of the rotating disk (401).

3. The fully automatic chuck type machine tool fixture according to claim 1, characterized in that: The top surface of the clamping claw (406) is arranged in a stepped shape, and a cross groove matching the cross block (405) is provided inside the mounting plate (3).

4. The fully automatic chuck type machine tool fixture according to claim 1, characterized in that: The cylinder (407) is fixedly connected to the inner wall of the fixed plate (2), and the output end of the cylinder (407) is fixedly connected to the bottom surface of the front end U-shaped block (403).

5. The fully automatic chuck type machine tool fixture according to claim 1, characterized in that: The connecting mechanism (5) is composed of a connecting plate (501), a pressing plate (502), a spring (503), a positioning pin (504) and a fixing block (505); a rectangular groove is provided on the top surface of the cross block (405); the connecting plate (501) is symmetrically slidably connected to the inside of the upper rectangular groove of the cross block (405); the pressing plate (502) is fixedly connected to one side of the connecting plate (501); and an anti-slip groove is provided on one end of the pressing plate (502) away from the connecting plate (501).

6. The fully automatic chuck type machine tool fixture according to claim 5, characterized in that: The spring (503) is fixedly connected between the connecting plate (501) and the inner wall of the groove, the positioning pin (504) is fixedly connected to the other end of the connecting plate (501), and the end of the positioning pin (504) away from the connecting plate (501) is configured to be circular.

7. The fully automatic chuck type machine tool fixture according to claim 5, characterized in that: The fixing block (505) is fixedly connected to the bottom of the clamping claw (406), and positioning grooves (506) matching with the positioning pin (504) are formed on both sides of the fixing block (505).

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