Workpiece positioning clamp for machine tool machining

Abstract

The utility model provides a workpiece positioning clamp for machine tool machining, relates to the technical field of positioning clamps, and aims to solve the problems that when an existing workpiece positioning clamp is used, after a workpiece is fixed, the workpiece can only keep one-way stability, and when the workpiece is machined at different positions, reversing treatment is inconvenient to conduct, and machining efficiency is high. The clamping device comprises a fixing part, a clamping part and a clamping part, a clamping part is arranged at the top of the fixing part; and a material supporting part is arranged in the clamping part. An inner rotating groove and an outer pulling groove are formed in an outer connecting frame, a torsion block and a locking clamping block can be conveniently installed and conveniently adjusted, locking insertion holes are formed in the outer wall of the torsion block at equal intervals, the locking clamping block is inserted into the locking insertion holes under the action of a spring, the torsion block is conveniently restrained, and the torsion block and the locking clamping block can be conveniently adjusted. Therefore, the overall stability of the clamping part and the material supporting part is conveniently kept, and the torsion block is rotated and adjusted after the constraint is released, so that the machining position of the workpiece is adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning jigs, and more specifically, particularly relates to a workpiece positioning jig for machine tool processing. Background Technique

[0002] A jig is one of the commonly used devices for positioning workpieces in a numerically controlled machine tool. Currently, the commonly used machine tool jigs mainly include self-centering chucks and bench vises, etc. Their operation is simple and the clamping effect is stable, so they have been widely used. During the process of machine tool processing, in order to facilitate the stability of the processed workpiece, a workpiece positioning jig is required.

[0003] For example, a workpiece positioning jig for machine tool processing proposed in Application No.: 202222921957.2 includes a connecting plate. Two hydraulic rods are fixedly connected to the upper surface of the connecting plate. L-shaped plates are fixedly connected to the ends of the two hydraulic rods close to each other. Threaded cylinders are fixedly embedded in the upper surface of each L-shaped plate. Threaded rods are threadedly connected to the inner walls of each threaded cylinder. The bottom surface of each L-shaped plate is in contact with the upper surface of the connecting plate. Two groups of chutes are opened on the upper surface of the connecting plate. By using the power provided by the hydraulic rods, this device facilitates the pushing of the two L-shaped plates closer to each other, and at the same time enables the L-shaped plates to clamp the workpiece. Then, by using the cooperation of the threaded cylinder and the threaded rod, it is convenient for the threaded rod to rotate inside the threaded cylinder while positioning the workpiece.

[0004] Based on the discovery in the prior art, when the existing workpiece positioning jig is in use, after the workpiece is fixed, it can only maintain the one-way stability of the workpiece, and it is not convenient to perform commutation processing during machining at different positions, so that the workpiece needs to be reinstalled. Summary of the Utility Model

[0005] In order to solve the above technical problems, the embodiments of the present disclosure relate to a workpiece positioning jig for machine tool processing to solve the problem that when the existing workpiece positioning jig is in use, after the workpiece is fixed, it can only maintain the one-way stability of the workpiece, and it is not convenient to perform commutation processing during machining at different positions, so that the workpiece needs to be reinstalled.

[0006] In the first aspect of the present disclosure, a workpiece positioning jig for machine tool processing is provided, which is achieved by the following specific technical means:

[0007] A workpiece positioning fixture for machine tool processing, comprising: a fixing part; the fixing part includes an inner rotating groove, an outer extraction groove and a locking block; the locking block is arranged in a cylindrical rod structure, a rectangular plate is provided on the outer wall of the locking block, a spring is provided on the locking block, and the locking block is slidably connected inside the outer extraction groove; a clamping part is provided on the top of the fixing part, and the clamping part includes a torsion block, a positioning frame, a locking insertion hole and a flipping lock frame; the torsion block is rotatably connected inside the inner rotating groove, and the locking block is inserted into the locking insertion hole; the torsion block is arranged in a cylindrical structure, a cylindrical protrusion is provided on the top of the torsion block, and an annular groove is provided on the outer wall of the torsion block; the flipping lock frame is arranged in an L-shaped clamping frame and is rotatably connected to the top of the positioning frame; a material supporting part is provided inside the clamping part, and the material supporting part includes a connecting support plate; the connecting support plate is fixedly connected to the positioning frame.

[0008] In at least some embodiments, the fixing part further includes an external connection frame; the external connection frame is arranged in a cylindrical structure, an annular protrusion is provided on the outer wall of the external connection frame, and circular through holes are equidistantly arranged on the annular protrusion of the external connection frame; the inner rotating groove is arranged in a cylindrical structure, a circular through hole is provided on the top of the inner rotating groove, and the inner rotating groove is opened inside the external connection frame.

[0009] In at least some embodiments, the outer extraction groove is arranged as a rectangular groove, the outer extraction groove is connected with a circular through hole, the outer extraction groove is arranged inside the external connection frame, and the outer extraction groove is connected with the inner rotating groove through the circular through hole.

[0010] In at least some embodiments, the clamping part further includes an upper mounting plate; the upper mounting plate is arranged in a disc structure and is fixedly connected to the top of the torsion block.

[0011] In at least some embodiments, the clamping part further includes an outer torsion frame; the outer torsion frame is arranged in a circular ring structure, an annular groove is provided on the inner wall of the outer torsion frame, turning handles are equidistantly arranged on the outer wall of the outer torsion frame, and the outer torsion frame is fixed to the outer wall of the upper mounting plate by screws.

[0012] In at least some embodiments, the positioning frame is arranged as an L-shaped block, a rectangular groove is provided on the top of the positioning frame, the rectangular groove of the positioning frame is connected with a shaft hole, and the positioning frame is equidistantly fixedly connected to the top of the upper mounting plate; the locking insertion hole is arranged as a circular insertion hole, and the locking insertion holes are equidistantly opened in the annular groove on the outer wall of the torsion block.

[0013] In at least some embodiments, the material supporting part includes a lifting support plate; the connecting support plate is arranged in a disc structure, rectangular protrusions are equidistantly arranged on the outer wall of the connecting support plate, and a threaded through hole is provided in the middle position of the connecting support plate; the lifting support plate is arranged in a disc structure, a threaded rod is rotatably connected to the bottom of the lifting support plate, a turning handle is connected to the threaded rod of the lifting support plate, and the threaded rod of the lifting support plate is threadedly connected to the connecting support plate.

[0014] A workpiece positioning fixture for machine tool processing proposed by the present utility model has the following beneficial effects:

[0015] 1. An external extraction groove and a locking block are provided. By respectively opening an internal rotation groove and an external extraction groove inside the external connection frame, it is convenient to install the torsion block and the locking block, and convenient to adjust the two. The outer wall of the torsion block is equidistantly provided with locking jacks, so that the locking block is inserted into the locking jacks under the action of a spring, which is convenient to restrain the torsion block, so as to facilitate maintaining the overall stability of the clamping part and the material supporting part, and enabling the torsion block to rotate and adjust after the restraint is released, so as to adjust the processing position of the workpiece;

[0016] 2. A flipping lock frame and a lifting support plate are provided. By rotatably connecting the flipping lock frame to the positioning frame, it is convenient to clamp the workpiece by flipping, and the lifting support plate is adjusted up and down under the control of the bottom threaded rod, so as to clamp the workpiece in cooperation with the flipping lock frame by moving up, so as to facilitate maintaining the overall stability of the workpiece and facilitating the clamping process of the workpiece. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the three-dimensional assembly structure of the present utility model.

[0018] Figure 2 is a schematic diagram of the bottom view of the three-dimensional assembly structure of the present utility model.

[0019] Figure 3 is a schematic diagram of the partial sectional structure of the present utility model.

[0020] Figure 4 is the present utility model's Figure 3 lead-out enlarged schematic diagram of part A.

[0021] Figure 5 is a schematic diagram of the exploded structure of the present utility model.

[0022] Figure 6 is a schematic diagram of the bottom view of the exploded structure of the present utility model.

[0023] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0024] 1. Fixed part; 101. External connection frame; 102. Internal rotation groove; 103. External extraction groove; 104. Locking block;

[0025] 2. Clamping part; 201. Torsion block; 202. Upper mounting plate; 203. External torsion frame; 204. Positioning frame; 205. Locking jack;

[0026] 206. Flipping lock frame; 3. Material supporting part; 301. Connecting support plate; 302. Lifting support plate. Detailed Embodiment

[0027] The following further describes the implementation manners of the present utility model in detail in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1: As shown in the attached Figure 1 to the attached Figure 6 figures: The present utility model provides a workpiece positioning fixture for machine tool processing, including: a fixing part 1; the fixing part 1 includes an inner rotating groove 102, an outer extracting groove 103, and a locking block 104; the locking block 104 is arranged in a cylindrical rod structure, a rectangular plate is provided on the outer wall of the locking block 104, a spring is provided on the locking block 104, and the locking block 104 is slidably connected inside the outer extracting groove 103; the locking block 104 is used to perform telescopic processing under the action of the spring to conveniently restrain the torsion block 201 by being inserted into the locking hole 205 to facilitate maintaining its stability; a clamping part 2 is provided on the top of the fixing part 1, and the clamping part 2 includes a torsion block 201, a positioning frame 204, a locking hole 205, and a flipping lock frame 206; the torsion block 201 is rotatably connected inside the inner rotating groove 102, and the locking block 104 is inserted into the locking hole 205; the torsion block 201 is arranged in a cylindrical structure, a cylindrical protrusion is provided on the top of the torsion block 201, and an annular groove is provided on the outer wall of the torsion block 201; the torsion block 201 is used to assist in installing and fixing other structures of the clamping part 2 to facilitate fixing the workpiece and at the same time assist in adjusting the direction of the workpiece; the flipping lock frame 206 is arranged as an L-shaped clamping frame, and the flipping lock frame 206 is rotatably connected to the top of the positioning frame 204; the flipping lock frame 206 is used to assist in cooperating with the lifting support plate 302 to fix the workpiece to assist in clamping the workpiece; a material supporting part 3 is provided inside the clamping part 2, and the material supporting part 3 includes a connecting support plate 301; the connecting support plate 301 is fixedly connected to the positioning frame 204.

[0029] Embodiment 2: On the basis of Embodiment 1, as Figure 4 and Figure 5As shown, the fixing part 1 further includes an external mounting frame 101; the external mounting frame 101 is set as a cylindrical structure, there is an annular protrusion on the outer wall of the external mounting frame 101, and circular through holes are equidistantly arranged on the annular protrusion of the external mounting frame 101; the external mounting frame 101 is used to assist in installing and fixing other structures of the device to facilitate maintaining the overall stability of the device and facilitating the clamping process of the workpiece; the inner rotating groove 102 is set as a cylindrical structure, there is a circular through hole at the top of the inner rotating groove 102, and the inner rotating groove 102 is opened inside the external mounting frame 101; the inner rotating groove 102 is used to assist in installing the torsion block 201 to facilitate its adjustment process; the outer extraction groove 103 is set as a rectangular groove, the outer extraction groove 103 is connected with a circular through hole, the outer extraction groove 103 is arranged inside the external mounting frame 101, and the outer extraction groove 103 is connected to the inner rotating groove 102 through the circular through hole; the outer extraction groove 103 is used to assist in installing the locking block 104 to facilitate its stability during adjustment and its use.

[0030] In the embodiment of the present disclosure, as Figure 4 And Figure 5 As shown, the clamping part 2 further includes an upper mounting plate 202; the upper mounting plate 202 is set as a disc-shaped structure, and the upper mounting plate 202 is fixedly connected to the top of the torsion block 201; the upper mounting plate 202 is used to assist in fixing the positioning frame 204 to facilitate its adjustment process; the clamping part 2 further includes an outer torsion frame 203; the outer torsion frame 203 is set as an annular structure, there is an annular groove on the inner wall of the outer torsion frame 203, and turning handles are equidistantly arranged on the outer wall of the outer torsion frame 203, and the outer torsion frame 203 is fixed to the outer wall of the upper mounting plate 202 by screws; the outer torsion frame 203 is used to control the upper mounting plate 202 to facilitate driving the workpiece to perform a torsion process; the positioning frame 204 is set as an L-shaped block, there is a rectangular groove at the top of the positioning frame 204, the rectangular groove of the positioning frame 204 is connected with a shaft hole, and the positioning frame 204 is equidistantly fixedly connected to the top of the upper mounting plate 202; the positioning frame 204 is used to support the flipping lock frame 206 to facilitate the restraint of the workpiece; the locking jack 205 is set as a circular jack, and the locking jacks 205 are equidistantly arranged in the annular groove on the outer wall of the torsion block 201; the locking jack 205 is used to cooperate with the locking block 104 to restrain the torsion block 201 to facilitate maintaining the stability of the workpiece during the processing.

[0031] In the embodiment of the present disclosure, as Figure 5As shown in the figure, the material supporting part 3 includes a lifting support plate 302; the connecting support plate 301 is arranged in a disc-shaped structure, rectangular protrusions are equidistantly arranged on the outer wall of the connecting support plate 301, and a threaded through hole is arranged at the middle position of the connecting support plate 301; the connecting support plate 301 is used to assist in connecting with the lifting support plate 302 to facilitate maintaining stability; the lifting support plate 302 is arranged in a disc-shaped structure, a threaded rod is rotatably connected to the bottom of the lifting support plate 302, the threaded rod of the lifting support plate 302 is connected with a turning handle, and the threaded rod of the lifting support plate 302 is threadedly connected to the connecting support plate 301; the lifting support plate 302 is used to perform lifting adjustment under the action of rotating the threaded rod to cooperate with the flipping lock frame 206 to restrain the workpiece during the upward movement.

[0032] Specific usage method and function of this embodiment:

[0033] In the present utility model, during use, the workpiece is placed on the lifting support plate 302, and then the flipping lock frame 206 is rotated so that the flipping lock frame 206 contacts the workpiece after flipping. Then, the threaded rod at the bottom of the lifting support plate 302 is rotated to control the upward movement of the lifting support plate 302 during the rotation, which is convenient to clamp the workpiece while the lifting support plate 302 and the workpiece move upward, so as to facilitate maintaining the stability of the workpiece, thereby completing the clamping of the workpiece;

[0034] During torsion, the locking block 104 is pulled outwards, so that it is withdrawn from the inside of the locking jack 205 while contracting in the outer drawing groove 103 to release the restraint on the torsion block 201, which is convenient to drive the torsion block 201 to rotate through the outer torsion frame 203 and drive the workpiece to rotate during the rotation, thereby driving the workpiece to perform torsion processing, which is convenient for processing the workpiece.

[0035] In this article, the following points need to be noted:

[0036] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0037] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A workpiece positioning fixture for machine tool processing, comprising: Fixing part (1); characterized in that: the fixing part (1) includes an inner rotating groove (102), an outer extraction groove (103) and a locking block (104); the locking block (104) is set as a cylindrical rod structure, a rectangular plate is provided on the outer wall of the locking block (104), a spring is provided on the locking block (104), and the locking block (104) is slidably connected inside the outer extraction groove (103); a clamping part (2) is provided at the top of the fixing part (1), and the clamping part (2) includes a torsion block (201), a positioning frame (204), a locking insertion hole (205) and a flipping lock frame (206); the torsion block (201) is rotatably connected inside the inner rotating groove (102), and the locking block (104) is inserted into the locking insertion hole (205); the torsion block (201) is set as a cylindrical structure, a cylindrical protrusion is provided at the top of the torsion block (201), and an annular groove is provided on the outer wall of the torsion block (201); the flipping lock frame (206) is set as an L-shaped clamping frame, and the flipping lock frame (206) is rotatably connected to the top of the positioning frame (204); a material supporting part (3) is provided inside the clamping part (2), and the material supporting part (3) includes a connecting support plate (301); the connecting support plate (301) is fixedly connected to the positioning frame (204).

2. The workpiece positioning fixture for machine tool processing according to claim 1, characterized in that: The fixing part (1) further includes an external connection frame (101); the external connection frame (101) is set as a cylindrical structure, an annular protrusion is provided on the outer wall of the external connection frame (101), and circular through holes are equidistantly arranged on the annular protrusion of the external connection frame (101); the inner rotating groove (102) is set as a cylindrical structure, a circular through hole is provided at the top of the inner rotating groove (102), and the inner rotating groove (102) is opened inside the external connection frame (101).

3. A workpiece positioning fixture for machine tool processing according to claim 1, characterized in that: The outer extraction groove (103) is set as a rectangular groove, the outer extraction groove (103) is connected with a circular through hole, the outer extraction groove (103) is arranged inside the external connection frame (101), and the outer extraction groove (103) is connected with the inner rotating groove (102) through the circular through hole.

4. A workpiece positioning fixture for machine tool processing according to claim 1, characterized in that: The clamping part (2) further includes an upper mounting plate (202); the upper mounting plate (202) is set as a disc-shaped structure, and the upper mounting plate (202) is fixedly connected to the top of the torsion block (201).

5. The workpiece positioning fixture for machine tool processing according to claim 4, characterized in that: The clamping part (2) further includes an outer torsion frame (203); the outer torsion frame (203) is set as an annular structure, an annular groove is provided on the inner wall of the outer torsion frame (203), turning handles are equidistantly arranged on the outer wall of the outer torsion frame (203), and the outer torsion frame (203) is fixed to the outer wall of the upper mounting plate (202) by screws.

6. The workpiece positioning fixture for machine tool processing according to claim 4, characterized in that: The positioning frame (204) is set as an L-shaped block, a rectangular groove is provided at the top of the positioning frame (204), the rectangular groove of the positioning frame (204) is connected with a shaft hole, and the positioning frame (204) is equidistantly fixedly connected to the top of the upper mounting plate (202); the locking insertion hole (205) is set as a circular insertion hole, and the locking insertion holes (205) are equidistantly arranged in the annular groove on the outer wall of the torsion block (201).

7. A workpiece positioning fixture for machine tool processing according to claim 1, characterized in that: The material supporting part (3) includes a lifting support plate (302); the connecting support plate (301) is arranged in a disc-shaped structure, rectangular protrusions are equidistantly arranged on the outer wall of the connecting support plate (301), and a threaded through hole is arranged at the middle position of the connecting support plate (301); the lifting support plate (302) is arranged in a disc-shaped structure, a threaded rod is rotatably connected to the bottom of the lifting support plate (302), the threaded rod of the lifting support plate (302) is connected with a turning handle, and the threaded rod of the lifting support plate (302) is threadedly connected to the connecting support plate (301).

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