Positioning tool for milling cutter machining

Abstract

The utility model discloses a positioning tool for milling cutter machining. The positioning tool comprises a clamping mechanism and a disassembling and assembling mechanism. The clamping mechanism comprises a base, vertical plates are uniformly and fixedly connected to the top of the base, a plate body is fixedly connected to the tops of the vertical plates, an empty groove is formed in the plate body, an electric push rod is fixedly mounted on one of the vertical plates, and a first rack is fixedly connected to the pushing end of the electric push rod; the outer side of the first rack is connected with a gear in a meshed mode, and one side of the gear is connected with a second rack in a meshed mode. According to the positioning tool for milling cutter machining, through the arrangement of the clamping mechanism and the dismounting and mounting mechanism, after an electric push rod drives a first rack to move, a second rack can move reversely under the action of a gear, so that two supporting blocks moving oppositely can drive a clamping block to clamp a workpiece, and the clamping block is also convenient to dismount, mount and replace on the supporting blocks; through the arrangement, the stability and convenience of the positioning tool during workpiece clamping are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter processing technology, specifically a positioning fixture for milling cutter processing. Background Technology

[0002] As is well known, when using a milling cutter for machining, a positioning fixture is needed to position and fix the workpiece to ensure the accuracy of the milling cutter's drilling position. Chinese Patent Publication No. CN219130904U discloses a positioning fixture for milling cutter machining, including: a milling cutter machine table; an operating table arranged on the milling cutter machine table; a support component arranged on the operating table; a replacement component arranged on the support component; wherein the support component and the replacement component are engaged; and a limiting component arranged on the operating table and in contact with the support component. This utility model, through the setting of the replacement component and its replacement use with the support component, allows for the interchangeable clamping of round and square workpieces, thereby achieving a positioning effect for workpieces of different shapes. This prevents workpiece displacement during milling operations, thus solving the problem of workpiece displacement caused by sliding due to the force generated by the clamping force on the circumference of the round workpiece when clamped by a square-shaped clamping block.

[0003] However, existing positioning fixtures for milling cutters mainly rely on manually rotating the screw to clamp the workpiece. Due to the limited manual force, the stability of the clamping block in holding the workpiece still needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for milling cutter machining, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for milling cutter machining, comprising: a clamping mechanism and a disassembly / assembly mechanism;

[0006] The clamping mechanism includes a base, with upright plates evenly fixedly connected to the top of the base, and a plate body fixedly connected to the top of the upright plates. A slot is formed inside the plate body. An electric push rod is fixedly installed on one of the upright plates. A first rack is fixedly connected to the pushing end of the electric push rod. A gear is meshed with the outer side of the first rack, and a second rack is meshed with one side of the gear. The bottoms of both the first and second racks are movably connected to the base. A connecting block for penetrating the slot is fixedly connected to the top of both the first and second racks. A support block is fixedly connected to one side of the connecting block, and a clamping block is provided on one side of the support block.

[0007] The disassembly and assembly mechanism includes a slot on the support block, a bracket fixedly connected to the support block, and a positioning groove on the top of the clamping block. The bracket is internally threaded with a threaded rod, and the bottom end of the threaded rod is rotatably connected to an insert for insertion into the positioning groove. One side of the insert is movably connected to the support block.

[0008] Preferably, a rubber pad is fixedly connected to the inner side of the clamping block.

[0009] Preferably, the bottom of the first rack and the second rack are both fixedly connected to the first slider, and the top of the base is symmetrically provided with the first sliding groove, the inner sidewall of the first sliding groove is slidably connected to the first slider.

[0010] Preferably, a rotating shaft is fixedly embedded inside the gear, and the bottom end of the rotating shaft is rotatably connected to the base.

[0011] Preferably, a second sliding groove is provided on the inner side of the support block, and a second slider is slidably connected to the inner side wall of the second sliding groove. One side of the second slider is fixedly connected to the insert block.

[0012] Preferably, a protrusion is fixedly connected to the top end of the threaded rod, and a groove is formed on the top of the protrusion.

[0013] Preferably, a controller is fixedly installed on the top of the plate, and the electrical control output terminal of the controller is electrically connected to the electrical control input terminal of the electric push rod.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This positioning fixture for milling cutter machining, through the setting of a clamping mechanism and a disassembly mechanism, enables the electric push rod to drive the first rack to move, and the second rack to move in the opposite direction under the action of the gear. This allows the two opposing support blocks to drive the clamping block to clamp the workpiece, and the clamping block is also easy to disassemble and replace on the support block. Through the above settings, the stability and convenience of the positioning fixture when clamping the workpiece are effectively improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning fixture for milling cutter processing according to the present invention;

[0017] Figure 2 This is an enlarged view of area A of the structural schematic diagram of the positioning fixture for milling cutter machining of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first and second racks in the positioning fixture for milling cutter machining of this utility model;

[0019] Figure 4This is an enlarged view of section B of the positioning fixture for milling cutter machining of this utility model.

[0020] In the diagram: 1. Clamping mechanism; 10. Base; 11. Vertical plate; 12. Plate body; 13. Electric push rod; 14. First rack; 15. Gear; 16. Second rack; 17. Hollow slot; 18. Connecting block; 19. Support block; 101. Clamping block; 102. Controller; 103. Rotating shaft; 104. First slide groove; 105. First slider; 106. Rubber pad; 2. Disassembly and assembly mechanism; 20. Slot; 21. Bracket; 22. Threaded rod; 23. Insert block; 24. Positioning groove; 25. Second slider; 26. Second slide groove; 27. Protrusion; 28. Groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-Figure 4 This utility model provides a technical solution: a positioning fixture for milling cutter processing, comprising: a clamping mechanism 1 and a disassembly and assembly mechanism 2.

[0023] In one embodiment, so that when the workpiece is placed on the plate 12 and positioned between the two clamping blocks 101, the first rack 14 can be moved by activating the electric push rod 13, thereby causing the second rack 16 to move in the opposite direction under the action of the gear 15, and thus causing the two support blocks 19 to move closer to each other under the action of the connecting block 18, so that the clamping blocks 101 can clamp the workpiece under the action of the support blocks 19; the clamping mechanism 1 includes a base 10, with upright plates 11 uniformly fixedly connected to the top of the base 10, and a plate 12 fixedly connected to the top of the upright plates 11. The interior of body 12 has a slot 17. An electric push rod 13 is fixedly installed on one of the upright plates 11. The pushing end of the electric push rod 13 is fixedly connected to a first rack 14. A gear 15 is meshed with the outer side of the first rack 14. A second rack 16 is meshed with one side of the gear 15. The bottoms of the first rack 14 and the second rack 16 are movably connected to the base 10. The tops of the first rack 14 and the second rack 16 are fixedly connected to a connecting block 18 for passing through the slot 17. A support block 19 is fixedly connected to one side of the connecting block 18. A clamping block 101 is provided on one side of the support block 19.

[0024] In one embodiment, when the clamping block 101 needs to be replaced to accommodate workpieces of different shapes, the insert 23 can be moved out of the positioning groove 24 by loosening the threaded rod 22, so that the clamping block 101, which has lost its fixing force, can be removed from the slot 20. After the replaced clamping block 101 is inserted into the slot 20, the insert 23 can be inserted into the positioning groove 24 by tightening the threaded rod 22, so that the clamping block 101 can be fixed on the support block 19 for stable use. The disassembly and assembly mechanism 2 includes a slot 20 opened on the support block 19, a bracket 21 fixedly connected to the support block 19, and a positioning groove 24 opened on the top of the clamping block 101. The bracket 21 is internally threaded with a threaded rod 22, and the bottom end of the threaded rod 22 is rotatably connected to an insert 23 for insertion into the positioning groove 24. One side of the insert 23 is movably connected to the support block 19.

[0025] It should be noted that in order for the clamps 101 of different shapes to be inserted into the slot 20 and to be positioned by the insert 23, the side of the clamps 101 of different shapes that are inserted into the slot 20 is of the same size, and the positioning grooves 24 opened on the different clamps 101 are also of the same size.

[0026] In one embodiment, to prevent the clamping block 101 from damaging the workpiece, a rubber pad 106 is fixedly connected to the inner side of the clamping block 101.

[0027] In one embodiment, in order to enable the gear 15 to rotate smoothly, a rotating shaft 103 is fixedly installed inside the gear 15, and the bottom end of the rotating shaft 103 is rotatably connected to the base 10.

[0028] In one embodiment, to ensure smooth linear movement of the first rack 14 and the second rack 16, a first slider 105 is fixedly connected to the bottom of both the first rack 14 and the second rack 16. A first groove 104 is symmetrically provided on the top of the base 10, and the inner wall of the first groove 104 is slidably connected to the first slider 105. To ensure smooth linear movement of the insert 23 under the action of the threaded rod 22, a second groove 26 is provided on the inner side of the support block 19. A second slider 25 is slidably connected to the inner wall of the second groove 26, and one side of the second slider 25 is fixedly connected to the insert 23.

[0029] In one embodiment, to facilitate operation of the threaded rod 22 by inserting a wrench into the protrusion 27, the top end of the threaded rod 22 is fixedly connected to the protrusion 27, and the top of the protrusion 27 is provided with a groove 28.

[0030] In one embodiment, in order to facilitate the control of starting or stopping the electric push rod 13 and to facilitate the adjustment of the movement parameters of the electric push rod 13 to adapt to workpieces of different sizes, a controller 102 is fixedly installed on the top of the plate 12, and the electrical control output terminal of the controller 102 is electrically connected to the electrical control input terminal of the electric push rod 13.

[0031] Based on the above technical solution, the working steps of this solution are summarized as follows: In use, when the workpiece is placed on the plate 12 and positioned between the two clamping blocks 101, the first rack 14 can be moved by activating the electric push rod 13, thereby causing the second rack 16 to move in the opposite direction under the action of the gear 15. This allows the two support blocks 19 to move closer to each other under the action of the connecting block 18, so that the clamping block 101 can clamp the workpiece under the action of the support block 19. When the clamping block 101 needs to be replaced to adapt to workpieces of different shapes, the insert block 23 can be moved out of the positioning groove 24 by loosening the threaded rod 22, so that the clamping block 101, which has lost its fixing force, can be removed from the slot 20. After the replaced clamping block 101 is inserted into the slot 20, the insert block 23 can be inserted into the positioning groove 24 by tightening the threaded rod 22, so that the clamping block 101 can be fixed on the support block 19 for stable use.

[0032] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for milling cutter machining, characterized in that, include: Clamping mechanism (1) and disassembly / assembly mechanism (2); The clamping mechanism (1) includes a base (10), on which upright plates (11) are uniformly fixedly connected. A plate body (12) is fixedly connected to the top of the upright plates (11). A slot (17) is formed inside the plate body (12). An electric push rod (13) is fixedly mounted on one of the upright plates (11). A first rack (14) is fixedly connected to the pushing end of the electric push rod (13). Teeth are engaged on the outer side of the first rack (14). A wheel (15) is connected to a second rack (16) on one side of the gear (15). The bottoms of the first rack (14) and the second rack (16) are movably connected to the base (10). The tops of the first rack (14) and the second rack (16) are fixedly connected to a connecting block (18) for penetrating the slot (17). A support block (19) is fixedly connected to one side of the connecting block (18). A clamping block (101) is provided on one side of the support block (19). The disassembly and assembly mechanism (2) includes a slot (20) opened on the support block (19), a bracket (21) fixedly connected to the support block (19), and a positioning groove (24) opened on the top of the clamping block (101). The bracket (21) is internally threaded with a threaded rod (22). The bottom end of the threaded rod (22) is rotatably connected with an insert (23) for insertion into the positioning groove (24). One side of the insert (23) is movably connected to the support block (19).

2. The positioning fixture for milling cutter machining according to claim 1, characterized in that: A rubber pad (106) is fixedly connected to the inner side of the clamp (101).

3. The positioning fixture for milling cutter machining according to claim 1, characterized in that: The bottom of the first rack (14) and the second rack (16) are both fixedly connected to the first slider (105), and the top of the base (10) is symmetrically provided with the first groove (104), and the inner sidewall of the first groove (104) is slidably connected to the first slider (105).

4. A positioning fixture for milling cutter machining according to claim 3, characterized in that: The gear (15) has a rotating shaft (103) fixedly embedded inside, and the bottom end of the rotating shaft (103) is rotatably connected to the base (10).

5. A positioning fixture for milling cutter machining according to claim 1, characterized in that: The support block (19) has a second sliding groove (26) on its inner side. The inner wall of the second sliding groove (26) is slidably connected to a second slider (25). One side of the second slider (25) is fixedly connected to the insert block (23).

6. A positioning fixture for milling cutter machining according to claim 1, characterized in that: The top end of the threaded rod (22) is fixedly connected to a protrusion (27), and the top of the protrusion (27) is provided with a groove (28).

7. A positioning fixture for milling cutter machining according to claim 1, characterized in that: A controller (102) is fixedly installed on the top of the plate (12), and the electrical control output end of the controller (102) is electrically connected to the electrical control input end of the electric push rod (13).

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