Fixture for milling machine

Abstract

The utility model relates to a fixture for a milling machine, which belongs to the technical field of milling machine fixtures and comprises a fixture table, sleeves are slidably connected in the fixture table at equal intervals, extrusion parts are arranged at the tops of the sleeves, and fixing grooves are arranged in the fixture table and positioned on two sides of the extrusion parts. The clamping device has the advantages that along with downward movement of the extrusion part, the installation parts on the two sides of the extrusion part can be extruded, then the replacement part can be driven to move towards the direction of the clamp strip, a cylindrical workpiece can be clamped, when the extrusion part moves upwards, the installation parts and the replacement part can be driven to reset through elastic force of the springs, and therefore the cylindrical workpiece can be clamped. By means of the multiple replacement parts and the circular grooves, the workpieces can be clamped and machined at the same time, then the machining efficiency of the workpieces can be improved, and therefore the large-batch machining requirement of a factory can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machine fixtures, in particular to a fixture for a milling machine. Background Art

[0002] A milling machine mainly refers to a machine tool for machining various surfaces of a workpiece. Usually, the milling cutter mainly performs a rotational motion as the main motion, and the movement of the workpiece and the milling cutter is the feed motion. When the milling machine processes the workpiece, it is necessary to clamp the workpiece through a fixture to prevent the workpiece from moving during processing.

[0003] After retrieval, a Chinese patent discloses a tooling fixture for a milling machine (authorization publication number CN214417765U), which includes a mounting base and a mounting box. The mounting box is installed on the top of the mounting base, a rotating table is installed on the top of the mounting box, a mounting plate is installed on the top of the rotating table, a fixture table is installed on the top of the mounting plate, a first mounting column is installed on the top of the fixture table, a fixing frame is installed on one side of the first mounting column, a pneumatic cylinder is installed on the inner wall of one side of the fixing frame, a pneumatic rod is installed at the output end of the pneumatic cylinder, a fixing plate is installed at the movable end of the pneumatic rod, a first clamping plate is installed on one side of the fixing plate, a mounting table is installed on the top of the fixture table, and a second mounting column is installed on the top of the fixture table. Although this patented technology can install a gear set inside the mounting box, and through the operation of the gear set, the fixture table can be adjusted in direction, thus saving the time of the staff and making the processing of the workpiece faster.

[0004] However, the above device still has some disadvantages in actual use. The more obvious one is that when the above milling machine fixture faces the processing of a large number of workpieces, it is necessary to clamp the first workpiece, then process it, and then replace another workpiece to continue clamping and processing, and so on. This method makes the processing time longer and the processing efficiency lower, and cannot meet the processing requirements of the factory for a large number of workpieces. Summary of the Utility Model

[0005] In view of the problem existing in the prior art that when the above milling machine fixture faces the processing of a large number of workpieces, it is necessary to clamp the first workpiece, then process it, and then replace another workpiece to continue clamping and processing, and so on. This method makes the processing time longer and the processing efficiency lower, and cannot meet the processing requirements of the factory for a large number of workpieces, the main purpose of the present utility model is to provide a fixture for a milling machine.

[0006] The technical solution of the utility model is as follows: A fixture for a milling machine, including a fixture table. Inside the fixture table, sleeves are slidably connected at equal intervals. At the top of each sleeve, there is an extrusion piece. Inside the fixture table and on both sides of the extrusion piece, fixing grooves are opened. Inside each fixing groove, a fixing rod is fixedly connected. A slider is slidably connected to the outer side of the fixing rod. At the top of each slider, a mounting piece is fixedly connected. On the outer side of the fixing rod and on one side of the slider, a spring is sleeved. At one end of the mounting piece away from the extrusion piece, there is a replacement piece. Both the replacement piece and the mounting piece are slidably connected to the top of the fixture table. At both ends of the top of the fixture table, there are fixture strips. Circular grooves are opened on the sides of the fixture strips close to the replacement piece. A transmission mechanism is arranged inside the fixture table. A replacement mechanism is arranged between the mounting piece and the replacement piece. A limiting mechanism is arranged inside the fixture table.

[0007] By adopting the above technical solution, as the extrusion piece moves downward, it can squeeze the mounting pieces on both sides of it, and then drive the replacement piece to move towards the fixture strip, so as to clamp the cylindrical workpiece. When the extrusion piece moves upward, the elastic force of the spring can drive the mounting piece and the replacement piece to reset, so as to unlock the workpiece and facilitate the processing operation of the next batch of workpieces.

[0008] As a preferred implementation manner, the transmission mechanism includes a mounting groove opened inside the fixture table and below the extrusion piece. A worm is rotatably connected inside the mounting groove. Threaded rods are rotatably connected to the inner walls of the mounting groove and below the sleeves. A worm gear is fixedly connected to the outer side of each threaded rod. The worm gears are all meshed with the worm. The bottom ends of the sleeves all extend into the corresponding mounting grooves and are threadedly connected to the threaded rods.

[0009] By adopting the above technical solution, the rotation of the worm can drive the rotation of multiple worm gears, and then drive the corresponding threaded rods to rotate, so as to drive the extrusion piece and the sleeves to move up and down.

[0010] As a preferred implementation manner, the replacement mechanism includes a convex block fixedly connected to the side of the replacement piece close to the mounting piece. A groove is opened inside the mounting piece and is used in cooperation with the convex block. The convex block is clamped with the groove. Four clamping blocks are fixedly connected to the side of the replacement piece close to the mounting piece. A clamping groove is opened on the side of the mounting piece close to the replacement piece and is used in cooperation with the clamping blocks. The clamping blocks are all clamped with the corresponding clamping grooves. Inside the mounting piece and on both sides of the groove, there are bolts III. The replacement piece and the mounting piece are connected by bolts III.

[0011] By adopting the above technical solution, through the cooperation of the clamping block and the clamping groove, and the convex block and the concave groove, the replacement part and the installation part can be made more compact and stable. At the same time, bolt three is used to facilitate the replacement of the replacement part.

[0012] As a preferred embodiment, the limiting mechanism includes limiting grooves opened inside the fixture table and located on both sides of the installation groove. Limiting blocks are slidably connected inside the limiting grooves, and the two limiting blocks are respectively fixedly connected to both sides of the sleeve.

[0013] By adopting the above technical solution, through the cooperation of the limiting block and the limiting groove, an important limiting effect can be exerted on the sleeve.

[0014] As a preferred embodiment, bolt two is arranged inside each of the pressing parts. The pressing parts and the sleeve are connected by bolt two. Three bolt ones are arranged inside each of the fixture strips. The fixture strips and the fixture table are connected by bolt one.

[0015] By adopting the above technical solution, through the use of bolt one, it is convenient to replace the fixture strip to adapt to workpieces of different shapes for use.

[0016] As a preferred embodiment, inclined surfaces for cooperation are arranged on the sides of the pressing parts close to the installation part.

[0017] By adopting the above technical solution, the pressing parts and the installation parts can be made to fit each other.

[0018] As a preferred embodiment, a servo motor one is fixedly installed on the outside of the fixture table. The output shaft of the servo motor one extends into the installation groove and is fixedly connected to the worm.

[0019] By adopting the above technical solution, by the rotation of the output shaft of the servo motor one, the worm can be driven to rotate.

[0020] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0021] 1. In the present utility model, as the pressing part moves downward, it can squeeze the installation parts on both sides of it, and then drive the replacement part to move towards the fixture strip, so as to clamp the cylindrical workpiece. When the pressing part moves upward, the installation part and the replacement part can be reset by the elastic force of the spring to unlock the workpiece, so as to facilitate the processing operation of the next batch of workpieces. Through the above multiple replacement parts and circular groove settings, the clamping and processing operations of a large number of workpieces can be realized simultaneously, and then the processing efficiency of the workpieces can be improved, so as to meet the processing requirements of the factory in large quantities.

[0022] 2. In the present utility model, through the cooperative use of the clamping block and the clamping groove, and the convex block and the concave groove, the replacement part and the mounting part can be made more compact and stable. At the same time, bolt three is used to facilitate the replacement of the replacement part, and through the use of bolt one, the clamping strip can be replaced to adapt to workpieces of different shapes for use, thereby improving the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall three-dimensional view of the present utility model;

[0024] Figure 2 is the schematic diagram of the internal structure of the present utility model;

[0025] Figure 3 is the schematic diagram of the structure of a fixture for a milling machine provided by the present utility model;

[0026] Figure 4 is the present utility model Figure 2 The enlarged view of part A in.

[0027] Legend description: 1. Fixture table; 2. Servo motor one; 3. Clamping strip; 4. Bolt one; 5. Extrusion part; 6. Bolt two; 7. Installation groove; 8. Worm; 9. Threaded rod; 10. Worm gear; 11. Limit groove; 12. Limit block; 13. Sleeve; 14. Mounting part; 15. Replacement part; 16. Fixed rod; 17. Clamping block; 18. Clamping groove; 19. Bolt three; 20. Fixed groove; 21. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] Refer to Figures 1-4, A fixture for a milling machine, comprising a fixture table 1. Inside the fixture table 1, sleeves 13 are slidably connected at equal intervals. At the top of each sleeve 13, there is an extrusion member 5. Inside the fixture table 1 and on both sides of the extrusion member 5, fixing grooves 20 are provided. Inside each fixing groove 20, a fixing rod 16 is fixedly connected. A slider is slidably connected to the outer side of the fixing rod 16. At the top of each slider, a mounting member 14 is fixedly connected. A spring 21 is sleeved on the outer side of the fixing rod 16 and on one side of the slider. At one end of the mounting member 14 away from the extrusion member 5, there is a replacement member 15. Both the replacement member 15 and the mounting member 14 are slidably connected to the top of the fixture table 1. At both ends of the top of the fixture table 1, there are fixture bars 3. Circular grooves are provided on the side of each fixture bar 3 close to the replacement member 15. A transmission mechanism is provided inside the fixture table 1. A replacement mechanism is provided between the mounting member 14 and the replacement member 15. A limiting mechanism is provided inside the fixture table 1. As the extrusion member 5 moves downward, it can squeeze the mounting members 14 on both sides of it, and then drive the replacement member 15 to move towards the fixture bar 3, so as to clamp the cylindrical workpiece. When the extrusion member 5 moves upward, the mounting member 14 and the replacement member 15 can be reset by the elastic force of the spring 21 to unlock the workpiece, so as to facilitate the processing operation of the next batch of workpieces. Through the above-mentioned multiple replacement members 15 and circular grooves, the clamping and processing operations of a large number of workpieces can be realized simultaneously, and thus the processing efficiency of the workpieces can be improved, so as to meet the processing requirements of the factory in large quantities.

[0030] Refer to Figure 4 , The transmission mechanism includes a mounting groove 7 opened inside the fixture table 1 and below the extrusion member 5. Inside the mounting groove 7, a worm 8 is rotatably connected. Inside the inner wall of the mounting groove 7 and below the sleeves 13, threaded rods 9 are rotatably connected. A worm gear 10 is fixedly connected to the outer side of the threaded rod 9. The worm gears 10 are all meshed with the worm 8. The bottom ends of the sleeves 13 all extend into the corresponding mounting groove 7 and are threadedly connected to the threaded rods 9. By rotating the worm 8, the rotation of multiple worm gears 10 can be driven, and then the corresponding threaded rods 9 can be driven to rotate, so as to drive the extrusion member 5 and the sleeves 13 to move up and down.

[0031] Refer to Figure 3, the replacement mechanism includes a convex block fixedly connected to the side of the replacement part 15 close to the installation part 14. A groove matching with the convex block is provided inside the installation part 14. The convex block is engaged with the groove. Four clamping blocks 17 are fixedly connected to the side of the replacement part 15 close to the installation part 14. A clamping groove 18 matching with the clamping blocks 17 is provided on the side of the installation part 14 close to the replacement part 15. The clamping blocks 17 are all engaged with the corresponding clamping grooves 18. Bolts three 19 are arranged on both sides of the groove inside the installation part 14. The replacement part 15 and the installation part 14 are connected by the bolts three 19. Through the cooperation of the clamping blocks 17 and the clamping grooves 18, and the convex block and the groove, the replacement part 15 and the installation part 14 can be made more compact and stable. At the same time, the bolts three 19 are used to facilitate the replacement of the replacement part 15 to adapt to workpieces of different shapes and improve the applicability.

[0032] Refer to Figure 4 , the limiting mechanism includes limiting grooves 11 provided inside the fixture table 1 and on both sides of the installation groove 7. Limiting blocks 12 are slidably connected inside the limiting grooves 11. The two limiting blocks 12 are respectively fixedly connected to both sides of the sleeve 13. Through the cooperation of the limiting blocks 12 and the limiting grooves 11, an important limiting effect can be exerted on the sleeve 13 to prevent the sleeve 13 from rotating during the lifting process.

[0033] Refer to Figure 1 , bolts two 6 are arranged inside the extrusion parts 5. The extrusion parts 5 and the sleeve 13 are connected by the bolts two 6. Three bolts one 4 are arranged inside the fixture strips 3. The fixture strips 3 and the fixture table 1 are connected by the bolts one 4. Through the use of the bolts one 4, it is convenient to replace the fixture strips 3 to adapt to workpieces of different shapes for use.

[0034] Refer to Figure 2 , inclined planes for cooperation are arranged on the sides of the extrusion parts 5 close to the installation part 14, which can make the extrusion parts 5 and the installation part 14 fit together.

[0035] Refer to Figure 1 , a servo motor one 2 is fixedly installed on the outer side of the fixture table 1. The output shaft of the servo motor one 2 extends into the installation groove 7 and is fixedly connected to the worm 8. By rotating the output shaft of the servo motor one 2, the worm 8 can be driven to rotate.

[0036] Working principle: First, place multiple workpieces between two semi-circular grooves, and control the start of the first servo motor 2 through an external control device to drive the worm 8 to rotate. Through the rotation of the worm 8, the rotation of multiple worm wheels 10 can be driven, and then the corresponding threaded rods 9 can be driven to rotate. In this way, the pressing part 5 and the sleeve 13 can be driven to move up and down. As the pressing part 5 moves downward, the mounting parts 14 on both sides of it can be pressed, and then the replacement part 15 can be driven to move towards the fixture bar 3, so as to clamp the cylindrical workpiece. When the pressing part 5 moves upward, the mounting part 14 and the replacement part 15 can be reset by the elastic force of the spring 21 to unlock the workpiece, so as to facilitate the processing operation of the next batch of workpieces. Through the above settings of multiple replacement parts 15 and circular grooves, the clamping and processing operations of a large number of workpieces can be realized simultaneously, thereby improving the processing efficiency of the workpieces, meeting the processing requirements of the factory in large quantities, and through the cooperation of the clamping block 17 with the clamping groove 18 and the convex block with the concave groove, the replacement part 15 and the mounting part 14 can be made more compact and stable. At the same time, the third bolt 19 is used to facilitate the replacement of the replacement part 15 to adapt to workpieces of different shapes, improving the applicability, and through the use of the first bolt 4, the fixture bar 3 can be replaced to adapt to workpieces of different shapes for use.

[0037] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fixture for a milling machine, comprising a fixture table (1), characterized in that: The inside of the fixture table (1) is equidistantly slidably connected to a sleeve (13), the top of each sleeve (13) is provided with an extrusion piece (5), the inside of the fixture table (1) and on both sides of the extrusion piece (5) are provided with a fixing groove (20), the inside of each fixing groove (20) is fixedly connected to a fixing rod (16), the outside of each fixing rod (16) is slidably connected to a slider, the top of each slider is fixedly connected to a mounting piece (14), the outside of each fixing rod (16) and on one side of the slider is provided with a spring (21), A replacement part (15) is provided at one end of the mounting part (14) away from the extrusion part (5); the replacement part (15) and the mounting part (14) are both slidably connected to the top of the fixture table (1); clamp bars (3) are provided at both ends of the top of the fixture table (1); a circular groove is provided on the side of the clamp bar (3) close to the replacement part (15); a transmission mechanism is provided inside the fixture table (1); a replacement mechanism is provided between the mounting part (14) and the replacement part (15); and a limiting mechanism is provided inside the fixture table (1).

2. A fixture for a milling machine according to claim 1, characterized in that: The transmission mechanism comprises a mounting groove (7) provided inside the fixture table (1) and below the extrusion member (5); a worm (8) is rotatably connected inside the mounting groove (7); a threaded rod (9) is rotatably connected to the inner wall of the mounting groove (7) and below the sleeve (13); a worm wheel (10) is fixedly connected to the outer side of the threaded rod (9); the worm wheel (10) is meshed with the worm wheel (8); and the bottom end of the sleeve (13) extends into the corresponding mounting groove (7) and is threadably connected to the threaded rod (9).

3. A fixture for a milling machine according to claim 1, characterized in that: The replacement mechanism comprises a protrusion fixedly connected to a side of the replacement part (15) close to the mounting part (14); a groove for use with the protrusion is provided inside the mounting part (14); the protrusion is engaged with the groove; four clamping blocks (17) are fixedly connected to a side of the replacement part (15) close to the mounting part (14); a clamping groove (18) for use with the clamping blocks (17) is provided on a side of the mounting part (14) close to the replacement part (15); the clamping blocks (17) are engaged with corresponding clamping grooves (18); three bolts (19) are provided inside the mounting part (14) and on both sides of the groove; the replacement part (15) and the mounting part (14) are connected via the three bolts (19).

4. A fixture for a milling machine according to claim 1, characterized in that: The limiting mechanism comprises limiting grooves (11) formed inside the fixture table (1) and located on both sides of the mounting groove (7), the limiting grooves (11) are slidably connected to limiting blocks (12) inside, and the two limiting blocks (12) are fixedly connected to both sides of the sleeve (13) respectively.

5. A fixture for a milling machine according to claim 1, characterized in that: The extrusion piece (5) is provided with bolt No. 2 (6) inside, and the extrusion piece (5) and the sleeve (13) are connected via bolt No. 2 (6). The clamping strip (3) is provided with three bolt Nos. 1 (4) inside, and the clamping strip (3) and the clamping table (1) are connected via bolt No. 1 (4).

6. A fixture for a milling machine according to claim 1, characterized in that: The extrusion piece (5) and the mounting piece (14) are both provided with a matching inclined surface on one side thereof.

7. A fixture for a milling machine according to claim 2, characterized in that: A servo motor 1 (2) is fixedly mounted on the outer side of the fixture table (1); the output shaft of the servo motor 1 (2) extends into the interior of the mounting groove (7) and is fixedly connected to the worm (8).

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