A fixture for fine milling

Abstract

The utility model relates to a fixing device for precision milling in the technical field of precision milling equipment. It comprises a processing device, wherein a clamping device for clamping a workpiece is installed in the middle of the processing device, the first lead screw nut comprises a first clamping assembly, the second lead screw nut comprises a second clamping assembly for cooperating with the first clamping assembly to clamp the workpiece, and a rotating assembly for cooperating with the first clamping assembly to rotate the workpiece is installed at one end of the second clamping assembly. When the workpiece needs to be rotated at a certain angle, the first clamping assembly cooperates with the second lead screw nut to rotate the clamped workpiece at a certain angle by rotating the second rotating rod, and the rotation angle is displayed by a pointer, and finally the second rotating rod is locked by a locking assembly in cooperation with a block pair, so as to complete the flipping of the workpiece and process other surfaces of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of precision milling equipment, in particular to a fixing device for precision milling. Background Art

[0002] With the development of modern mechanization, it is often necessary to perform precision milling on workpieces. In order to ensure the stability of the processing, a fixing device is used to clamp the workpiece to make the workpiece more stable during the processing.

[0003] For example, a product disclosed in Chinese patent application number CN202320516103.8 is a multi-directional and efficient precision milling tooling, and its specific content is: when encountering a special-shaped workpiece, first start the motor, the motor drives the main thread rod to rotate, the main thread rod drives the secondary thread rod to rotate, and at the same time the main thread rod and the secondary thread rod drive the nut auxiliary block 1 and the nut auxiliary block 2 to move relative to each other, the nut auxiliary block 1 and the nut auxiliary block 2 drive the connecting plate 1 and the connecting plate 2 to move relative to each other, and then the arc block 1, arc block 2, and arc block 3 respectively rotate according to the arc of the special-shaped workpiece through the internal arc groove and the slide rail 1, slide rail 2 and slide rail 3, so that the special-shaped workpiece can be clamped, which not only improves efficiency but also reduces costs. After the workpiece is clamped, the hydraulic rod pushes the slider forward in the slide groove 2, the slider drives the fixed block to move, and the fixed block drives the milling disc to move, and the milling disc can perform precision milling on different places of the workpiece, thereby realizing the diversification of functions. It has the following technical problems:

[0004] When the casting is clamped, only one side of the casting can be processed. When processing other sides, it needs to be removed and re-clamped, which is a cumbersome operation. Utility Model Content

[0005] In order to solve the problem that the operation of processing other surfaces is relatively complicated in the above background technology, the utility model provides the following technical solutions:

[0006] A fixture for fine milling, comprising a processing device;

[0007] A clamping device for clamping a workpiece is installed in the middle of the processing device.

[0008] The machining device comprises a milling disc for machining a workpiece.

[0009] The clamping device includes a first lead screw nut and a second lead screw nut, and a reciprocating screw for controlling the first lead screw nut and the second lead screw nut to move left and right is installed in the middle of the first lead screw nut and the second lead screw nut, and the moving directions of the first lead screw nut and the second lead screw nut are opposite.

[0010] The first lead screw nut includes a first clamping assembly, and the second lead screw nut includes a second clamping assembly for cooperating with the first clamping assembly to clamp the workpiece.

[0011] A rotating assembly for cooperating with the first clamping assembly to rotate the workpiece is installed at one end of the second clamping assembly.

[0012] Furthermore, a bracket for limiting the milling disc is installed at the upper end of the milling disc, and the processing device includes a fixed table for limiting the clamping device, and a sliding groove for sliding the first screw nut and the second screw nut is opened inside the fixed table.

[0013] Furthermore, a connecting rod 1 is installed at the upper end of the first screw nut, a bearing is installed at the upper end of the connecting rod 1, and a rotating rod 1 for limiting the first clamping assembly is installed in the middle of the bearing.

[0014] Furthermore, a second connecting rod is mounted on the upper end of the second lead screw nut, a pointer is mounted on the upper end of the second connecting rod, and a locking assembly for locking the rotating assembly is mounted on the upper end of the second connecting rod.

[0015] Furthermore, a motor for controlling the rotation of the reciprocating screw is installed at one end of the reciprocating screw.

[0016] Furthermore, a limiting groove is provided in the middle of the first clamping assembly, a mounting base is installed in the middle of the groove cavity of the limiting groove, a limiting ball is installed at one end of the mounting base, a connecting block is movably connected to one side of the limiting ball, a clamping plate for clamping the workpiece is installed at one end of the connecting block, and an anti-slip pad is installed at one end of the clamping plate.

[0017] Furthermore, the rotating assembly includes a rotating rod 2 for supporting and limiting the second clamping assembly, a slot is provided in the middle of the rotating rod 2, a block 1 is installed on the inner wall of the slot for cooperating with the locking assembly to lock the rotating rod 2, an angle disk is installed at one end of the rotating rod 2, and a scale mark is provided on one side of the angle disk for cooperating with the pointer to rotate the workpiece to a specified angle.

[0018] Furthermore, the locking assembly includes a pressure block, the lower end of which is equipped with a clamping block 2 for cooperating with a clamping block to lock a rotating rod 2, the upper end of the pressure block is equipped with a connecting rod 3, the middle part of the connecting rod 3 is equipped with a limiting plate, and the lower end of the limiting plate is equipped with a tension spring for cooperating with the connecting rod 2 to pull the pressure block downward.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] When the workpiece needs to be rotated at a certain angle, the second rotating rod is rotated so that the first clamping assembly cooperates with the second lead screw nut to rotate the clamped workpiece at a certain angle. The rotation angle is displayed by a pointer, and finally the second rotating rod is locked by the locking assembly in cooperation with the block to complete the flipping of the workpiece so that other surfaces of the workpiece can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the processing device of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the clamping device of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the first clamping assembly of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the connecting rod 2 of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the rotating assembly of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the locking assembly of the utility model.

[0028] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0029] 001-Processing equipment;

[0030] 100-milling disc, 110-bracket, 200-fixed table, 210-slideway;

[0031] 002-Clamping device;

[0032] 300-first screw nut, 310-connecting rod 1, 311-bearing, 320-rotating rod 1, 330-first clamping assembly, 331-limiting groove, 332-clamping plate, 333-anti-slip pad, 334-connecting block, 335-limiting ball, 336-mounting base;

[0033] 400-second lead screw nut, 410-connecting rod 2, 411-pointer, 420-rotating assembly, 421-rotating rod 2, 422-slot, 423-block 1, 424-angle plate, 425-scale mark, 430-locking assembly, 431-pressing block, 432-block 2, 433-connecting rod 3, 434-limiting plate, 435-tension spring, 440-second clamping assembly;

[0034] 500- reciprocating screw, 510- motor. DETAILED DESCRIPTION

[0035] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0036] See also Figure 1-Figure 7 The utility model provides a fixing device for fine milling.

[0037] The processing device 001 includes a milling disc 100 for processing a workpiece, and a bracket 110 for limiting the milling disc 100 is installed at the upper end of the milling disc 100. The processing device 001 includes a fixed table 200 for limiting the clamping device 002. A slide groove 210 for sliding the first screw nut 300 and the second screw nut 400 is provided inside the fixed table 200, and the reciprocating screw 500 rotates in the middle of the slide groove 210 to control the first screw nut 300 and the second screw nut 400 to clamp the workpiece.

[0038] A clamping device 002 for clamping and fixing a workpiece is installed in the middle of the processing device 001. The clamping device 002 includes a first lead screw nut 300 and a second lead screw nut 400. The moving directions of the first lead screw nut 300 and the second lead screw nut 400 are opposite.

[0039] A connecting rod 310 is fixedly mounted on the upper end of the first screw nut 300, a bearing 311 is mounted on the upper end of the connecting rod 310, and a rotating rod 320 for limiting the first clamping assembly 330 is mounted in the middle of the bearing 311, so that when the workpiece is rotated, the rotating rod 320 can rotate in the middle of the bearing 311.

[0040] The first screw nut 300 includes a first clamping assembly 330, and the first clamping assembly 330 and the second clamping assembly 440 have the same size and structure, so as to facilitate clamping of special-shaped workpieces. The first clamping assembly 330 is fixedly installed on the left side of the rotating rod 1 320, and a limiting groove 331 is provided in the middle of the first clamping assembly 330, and a mounting base 336 is fixedly installed in the middle of the groove cavity of the limiting groove 331, and a limiting ball 335 is fixedly installed at one end of the mounting base 336, and a connecting block 334 is movably connected to one side of the limiting ball 335, and the connecting block 334 can slide on the surface of the limiting ball 335, and a clamping plate 332 for clamping the workpiece is fixedly installed at one end of the connecting block 334, and an anti-slip pad 333 is installed at one end of the clamping plate 332, and the clamping plate 332 slides on the surface of the limiting ball 335 through the connecting block 334, so that the clamping plate 332 can clamp the special-shaped workpiece.

[0041] A second connecting rod 410 is fixedly mounted on the upper end of the second lead screw nut 400 . A pointer 411 is fixedly mounted on the left side of the upper end of the second connecting rod 410 . The pointer 411 is located on the left side of the scale mark 425 .

[0042] A rotating assembly 420 for cooperating with the first clamping assembly 330 to rotate the workpiece is installed at one end of the second clamping assembly 440. The rotating assembly 420 is movably installed on the upper end of the connecting rod 410. The rotating assembly 420 includes a rotating rod 421 for supporting and limiting the second clamping assembly 440. A slot 422 is provided in the middle of the rotating rod 421. When the pressure block 431 moves downward into the groove cavity of the slot 422, it is convenient to engage with the groove cavity between the adjacent clamping block 1 423 to lock the rotating rod 421.

[0043] A plurality of clamping blocks 423 for cooperating with the locking assembly 430 to lock the second rotating rod 421 are fixedly installed on the inner wall of the slot 422. An angle plate 424 is fixedly installed on the left end of the second rotating rod 421, and a scale mark 425 for cooperating with the pointer 411 to rotate the workpiece at a specified angle is arranged on one side of the angle plate 424. When the workpiece needs to be rotated at a certain angle, the second rotating rod 421 is rotated, so that the first clamping assembly 330 cooperates with the second lead screw nut 400 to rotate the clamped workpiece at a certain angle, and the rotation angle is displayed by the pointer 411. Finally, the locking assembly 430 cooperates with the clamping block 423 to lock the second rotating rod 421, and the workpiece is turned over to process other surfaces of the workpiece.

[0044] The upper end of the second connecting rod 410 is provided with a locking assembly 430 for locking the rotating assembly 420. The locking assembly 430 includes a pressing block 431. The lower end of the pressing block 431 is fixedly provided with a second clamping block 432 for cooperating with the first clamping block 423 to lock the second rotating rod 421. The upper end of the pressing block 431 is fixedly provided with a third connecting rod 433. The middle part of the third connecting rod 433 is fixedly provided with a limiting plate 434. The lower end of the limiting plate 434 is fixedly provided with a tension spring 435 for cooperating with the second connecting rod 410 to pull the pressing block 431 downward. The other end of the tension spring 435 is fixedly provided at the top end of the second connecting rod 410 to facilitate pulling the limiting plate 434 downward. The second lead screw nut 400 includes a second clamping assembly 440 for cooperating with the first clamping assembly 330 to clamp the workpiece.

[0045] When adjusting the angle of the workpiece, it is necessary to first hold the upper end of the connecting rod three 433 to move the clamping block two 432 away from the clamping block one 423 to release the lock on the rotating rod two 421. After the angle adjustment is completed, loosen the connecting rod three 433, and the tension spring 435 automatically drives the clamping block two 432 to move downward to complete the locking of the rotating rod two 421.

[0046] A reciprocating screw 500 is movably installed in the middle of the first screw nut 300 and the second screw nut 400 for controlling the left and right movement of the first screw nut 300 and the second screw nut 400. The left and right ends of the reciprocating screw 500 are provided with spiral grooves for controlling the left and right movement of the first screw nut 300 and the second screw nut 400, and the spiral grooves on both sides of the reciprocating screw 500 have opposite rotation directions, so that when the reciprocating screw 500 rotates, the movement of the first screw nut 300 and the second screw nut 400 is The movement directions are opposite, so that the first clamping assembly 330 cooperates with the second clamping assembly 440 to clamp the workpiece. A motor 510 for controlling the rotation of the reciprocating screw 500 is installed at one end of the reciprocating screw 500. The motor 510 is started to drive the reciprocating screw 500 to rotate, so that the first screw nut 300 and the second screw nut 400 are close to each other, and the first clamping assembly 330 and the second clamping assembly 440 are synchronously driven to clamp the workpiece, so that the milling disk 100 can process the workpiece.

[0047] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A fixture for fine milling, comprising a processing device (001), characterized in that: A clamping device (002) for clamping a workpiece is installed in the middle of the processing device (001); The processing device (001) comprises a milling disc (100) for processing a workpiece; The clamping device (002) comprises a first lead screw nut (300) and a second lead screw nut (400), wherein a reciprocating lead screw (500) is installed in the middle of the first lead screw nut (300) and the second lead screw nut (400) for controlling the first lead screw nut (300) and the second lead screw nut (400) to move left and right, and the movement directions of the first lead screw nut (300) and the second lead screw nut (400) are opposite; The first lead screw nut (300) comprises a first clamping assembly (330), and the second lead screw nut (400) comprises a second clamping assembly (440) for cooperating with the first clamping assembly (330) to clamp a workpiece; A rotating assembly (420) for cooperating with the first clamping assembly (330) to rotate the workpiece is installed at one end of the second clamping assembly (440).

2. A fixture for fine milling according to claim 1, characterized in that: A bracket (110) for limiting the position of the milling disc (100) is installed at the upper end of the milling disc (100), and the processing device (001) includes a fixed platform (200) for limiting the position of the clamping device (002), and a sliding groove (210) for sliding the first screw nut (300) and the second screw nut (400) is provided inside the fixed platform (200).

3. A fixture for fine milling according to claim 1, characterized in that: A connecting rod (310) is installed at the upper end of the first screw nut (300), a bearing (311) is installed at the upper end of the connecting rod (310), and a rotating rod (320) for limiting the first clamping assembly (330) is installed in the middle of the bearing (311).

4. A fixture for fine milling according to claim 1, characterized in that: A second connecting rod (410) is mounted on the upper end of the second lead screw nut (400), a pointer (411) is mounted on the upper end of the second connecting rod (410), and a locking assembly (430) for locking the rotating assembly (420) is mounted on the upper end of the second connecting rod (410).

5. A fixture for fine milling according to claim 1, characterized in that: A motor (510) for controlling the reciprocating screw (500) to rotate is installed at one end of the reciprocating screw (500).

6. A fixture for fine milling according to claim 1, characterized in that: A limiting groove (331) is provided in the middle of the first clamping assembly (330), a mounting base (336) is installed in the middle of the groove cavity of the limiting groove (331), a limiting ball (335) is installed at one end of the mounting base (336), a connecting block (334) is movably connected to one side of the limiting ball (335), a clamping plate (332) for clamping a workpiece is installed at one end of the connecting block (334), and an anti-slip pad (333) is installed at one end of the clamping plate (332).

7. A fixture for fine milling according to claim 4, characterized in that: The rotating assembly (420) comprises a second rotating rod (421) for supporting and limiting the second clamping assembly (440); a slot (422) is provided in the middle of the second rotating rod (421); a first clamping block (423) is installed on the inner wall of the slot (422) for cooperating with the locking assembly (430) to lock the second rotating rod (421); an angle plate (424) is installed at one end of the second rotating rod (421); and a scale mark (425) is provided on one side of the angle plate (424) for cooperating with the pointer (411) to rotate the workpiece at a specified angle.

8. A fixture for fine milling according to claim 7, characterized in that: The locking assembly (430) comprises a pressing block (431), the lower end of which is provided with a second clamping block (432) for cooperating with a first clamping block (423) to lock a second rotating rod (421), the upper end of which is provided with a third connecting rod (433), the middle part of which is provided with a limiting plate (434), the lower end of which is provided with a tension spring (435) for cooperating with a second connecting rod (410) to pull the pressing block (431) downward.

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