Clamp for metal part machining

Abstract

The utility model discloses a clamp for metal part machining, and relates to the technical field of metal part machining. The clamp for metal part machining comprises a base and a two-way lead screw installed at the upper end of the base, a left rod body and a right rod body of the two-way lead screw are in threaded connection with clamping jaws through nuts, clamping ends of the clamping jaws are detachably provided with clamping heads, and the upper ends and the lower ends of the clamping heads are in sliding connection with the inner walls of the clamping jaws. Locking frames are symmetrically welded to the side ends of the clamping jaws, threaded rods are connected to the locking frames in a threaded mode, lifting plates are movably installed at the ends, located in the locking frames, of the threaded rods, and the lifting plates are slidably connected with the locking frames. In order to overcome the defect that the clamp cannot clamp various metal parts due to the fact that the clamp head of the clamp cannot be replaced, the clamp head and the clamping jaw are detachably connected, so that the clamp head is convenient to replace, the clamp is suitable for clamping the metal parts with different shapes and sizes, and the flexibility of a production line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part processing, and particularly relates to a fixture for metal part processing. Background Art

[0002] In the field of metal part processing, the production line needs to process workpieces of various shapes, sizes and materials. In order to ensure that each part can be accurately positioned and stably clamped, the fixture needs to be equipped with different types of chucks to meet the processing requirements of different parts. However, the traditional fixture adopts a fixed structure on the chuck and cannot be replaced. Therefore, it can only be used to clamp metal parts of specific shapes and sizes, which limits the flexibility of the production line and is difficult to meet the production requirements of multi-variety and small-batch metal parts.

[0003] Therefore, in order to solve the defect that the chuck of the fixture cannot be replaced, resulting in the fixture being unable to clamp multi-variety metal parts, it is very necessary to propose a fixture for metal part processing. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixture for metal part processing. By the detachable connection between the chuck and the jaw, it is convenient to replace the chuck, which is suitable for clamping metal parts of different shapes and sizes, and improves the flexibility of the production line, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fixture for metal part processing, comprising a base and a bidirectional lead screw installed at the upper end of the base. The left and right rod bodies of the bidirectional lead screw are threadedly connected with jaws through nuts, and a chuck is detachably installed at the clamping end of the jaw;

[0007] The upper and lower ends of the chuck are slidably connected with the inner wall of the jaw. Symmetrically welded on the side end of the jaw are locking frames, and a screw is threadedly connected to the locking frame. One end of the screw located inside the locking frame is movably installed with a lifting plate, and the lifting plate is slidably connected with the locking frame;

[0008] Equidistantly arranged at the bottom of the lifting plate are insertion blocks, which penetrate through the locking frame and extend outside the locking frame. A fixing plate is welded on the chuck and fits against the bottom of the locking frame, and slots are opened on the fixing plate.

[0009] Preferably, a first gear is fixedly provided in the middle of the bidirectional lead screw, a motor is fixedly installed on the base, the output end of the motor is fixedly connected with a second gear, and a toothed belt is externally engaged with the first gear and the second gear.

[0010] Preferably, a slide rail is installed at the bottom of the base, and a sliding groove adapted to the slide rail is installed on the jaw.

[0011] Preferably, a limiting plate is welded on the clamping jaw, and a limiting groove adapted to the limiting plate is formed on the clamping head.

[0012] Preferably, a limiting rod is inserted through one end of the insertion block located outside the locking frame, and both ends of the limiting rod are fixed by nuts.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this fixture for metal part processing, through the detachable connection between the clamping jaw and the clamping head, the fixture can quickly replace different types of clamping heads, so as to adapt to metal parts of different shapes and sizes, greatly improving the adaptability of the production line and meeting the requirements of the multi-variety and small-batch production mode. At the same time, by replacing the appropriate clamping head, the fixture can provide more accurate positioning and more stable clamping force, which helps to improve the processing accuracy of metal parts and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the slide rail of the present utility model;

[0017] Figure 3 is a schematic diagram of the disassembly and assembly of the clamping head and the clamping jaw of the present utility model.

[0018] In the figure: 1, base; 2, bidirectional lead screw; 21, first gear; 22, lead screw nut; 3, motor; 31, second gear; 32, toothed belt; 4, clamping jaw; 41, chute; 42, limiting plate; 43, locking frame; 44, screw; 45, lifting plate; 451, insertion block; 46, limiting rod; 5, slide rail; 6, clamping head; 61, limiting groove; 62, fixing plate; 621, slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] To solve the technical problem of how the fixture clamps metal parts, please refer to Figure 1 - Figure 2 , the following technical solutions are provided in this embodiment:

[0021] A fixture for machining metal parts, comprising a base 1 and a bidirectional lead screw 2 mounted on the upper end of the base 1. The left and right rod bodies of the bidirectional lead screw 2 are threadedly connected with clamping jaws 4 through screw nuts 22, and a chuck 6 is detachably mounted at the clamping end of the clamping jaws 4.

[0022] A first gear 21 is fixedly provided in the middle of the bidirectional lead screw 2. A motor 3 is fixedly mounted on the base 1, and an output end of the motor 3 is fixedly connected with a second gear 31. The first gear 21 and the second gear 31 are externally engaged with a toothed belt 32.

[0023] Wherein, a slide rail 5 is mounted at the bottom of the base 1, and a sliding groove 41 adapted to the slide rail 5 is mounted on the clamping jaw 4. Through the arrangement of the slide rail 5 and the sliding groove 41, the movement of the clamping jaw 4 is limited, ensuring that the clamping jaw 4 maintains a linear motion during the movement, thereby improving the accuracy and stability of the clamping jaw 4 when clamping metal parts.

[0024] Specifically, when the motor 3 is started, the motor 3 drives the second gear 31 to rotate. The second gear 31 drives the first gear 21 to rotate through the meshing action of the toothed belt 32. The first gear 21 then drives the bidirectional lead screw 2 fixedly connected thereto to rotate. Since the clamping jaw 4 is threadedly connected with the bidirectional lead screw 2 through the screw nut 22, and the clamping jaw 4 is slidably connected with the slide rail 5 through the sliding groove 41, the clamping jaw 4 will perform a relative movement along the slide rail 5 and drive the chuck 6 to perform a relative movement until the left and right chucks 6 clamp or release the metal part.

[0025] To solve the technical problem of how to replace the chuck, please refer to Figure 3 , the following technical solutions are provided in this embodiment:

[0026] The upper and lower ends of the chuck 6 are slidably connected with the inner wall of the clamping jaw 4. Locking frames 43 are symmetrically welded to the side ends of the clamping jaw 4. A screw rod 44 is threadedly connected to the locking frame 43. One end of the screw rod 44 located inside the locking frame 43 is movably mounted with a lifting plate 45, and the lifting plate 45 is slidably connected with the locking frame 43.

[0027] Insert blocks 451 are equidistantly provided at the bottom of the lifting plate 45. The insert blocks 451 penetrate through the locking frame 43 and extend outside the locking frame 43. A fixing plate 62 attached to the bottom of the locking frame 43 is welded on the chuck 6. A slot 621 is opened on the fixing plate 62. One end of the insert block 451 located outside the locking frame 43 is penetrated by a limiting rod 46, and both ends of the limiting rod 46 are fixed by nuts.

[0028] Wherein, a limiting plate 42 is welded on the clamping jaw 4, and a limiting groove 61 adapted to the limiting plate 42 is opened on the chuck 6. The design of the limiting plate 42 and the limiting groove 61 can limit the sliding of the chuck 6 on the clamping jaw 4, ensuring that the chuck 6 can be accurately positioned at the correct position when installed on the clamping jaw 4.

[0029] Specifically, first ensure that the fixture is in a non-working state. Start the motor 3 to separate the two jaws 4, and remove the nuts at both ends of the limit rod 46. Withdraw the limit rod 46 from the insertion block 451. Then rotate the screw rod 44 to move the lifting plate 45 up and down within the locking frame 43. The lifting plate 45 drives the insertion block 451 to move up and down until the insertion block 451 disengages from the slot 621. At this time, the chuck 6 can be removed from the jaw 4. When installing a new chuck 6, place a suitable new chuck 6 at the clamping end of the jaw 4 and align its fixing plate 62 with the bottom of the locking frame 43. Insert the chuck 6 into the jaw 4 until the limit plate 42 engages with the limit groove 61. Then rotate the screw rod 44 again to move the lifting plate 45 up and down within the locking frame 43 until the insertion block 451 is inserted into the slot 621. Next, insert the limit rod 46 into the insertion block 451, and finally tighten the limit rod 46 with nuts, thus completing the replacement of the chuck 6.

[0030] Working principle: When the chuck 6 needs to be replaced in this fixture for metal part processing, first ensure that the fixture is in a non-working state. Start the motor 3 to separate the two jaws 4, and remove the nuts at both ends of the limit rod 46. Withdraw the limit rod 46 from the insertion block 451. Then rotate the screw rod 44 to move the lifting plate 45 up and down within the locking frame 43. The lifting plate 45 drives the insertion block 451 to move up and down until the insertion block 451 disengages from the slot 621. At this time, the chuck 6 can be removed from the jaw 4. Then install a new chuck 6. Place a suitable new chuck 6 at the clamping end of the jaw 4 and insert it with its fixing plate 62 aligned with the bottom of the locking frame 43 until the limit plate 42 engages with the limit groove 61. Then rotate the screw rod 44 again to move the lifting plate 45 up and down within the locking frame 43 until the insertion block 451 is inserted into the slot 621. Next, insert the limit rod 46 into the insertion block 451, and finally tighten the limit rod 46 with nuts, thus completing the replacement of the chuck 6.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for metal parts processing, comprising a base (1) and a bidirectional screw (2) mounted on the upper end of the base (1), characterized in that: The left and right rod bodies of the bidirectional screw rod (2) are threadedly connected to clamping claws (4) via a nut (22), and a clamping head (6) is detachably mounted on the clamping end of the clamping claw (4); The upper and lower ends of the clamp (6) are slidably connected to the inner wall of the clamp (4); a locking frame (43) is symmetrically welded to the side end of the clamp (4); a screw rod (44) is threadedly connected to the locking frame (43); a lifting plate (45) is movably mounted on one end of the screw rod (44) located in the locking frame (43); and the lifting plate (45) is slidably connected to the locking frame (43); Insert blocks (451) are equidistantly arranged at the bottom of the lifting plate (45), and the insert blocks (451) penetrate the locking frame (43) and extend outside the locking frame (43). A fixing plate (62) is welded on the clamp (6) and is attached to the bottom of the locking frame (43). A slot (621) is provided on the fixing plate (62).

2. A metal parts processing fixture according to claim 1, characterized in that: A first gear (21) is fixedly provided in the middle of the bidirectional screw rod (2), a motor (3) is fixedly mounted on the base (1), a second gear (31) is fixedly connected to the output end of the motor (3), and a toothed belt (32) is externally meshed between the first gear (21) and the second gear (31).

3. A metal parts processing fixture according to claim 1, characterized in that: A slide rail (5) is installed at the bottom of the base (1), and a slide groove (41) adapted to the slide rail (5) is installed on the clamping jaw (4).

4. A metal parts processing fixture according to claim 1, characterized in that: A limit plate (42) is welded to the clamping jaw (4), and a limit groove (61) matching the limit plate (42) is provided on the clamping head (6).

5. A fixture for metal parts processing according to claim 1, characterized in that: One end of the insert block (451) located outside the locking frame (43) is inserted through a limit rod (46), and both ends of the limit rod (46) are fixed by nuts.

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