Quick-change multi-station machine tool fixture

Abstract

This utility model discloses a quick-change multi-station machine tool fixture, relating to the field of machine tool fixture technology, including a base assembly, an adjustment assembly, a fixture assembly, and a quick-change mechanism. By incorporating the base assembly, fixture assembly, and quick-change mechanism, this utility model allows for easy clamping of workpieces of different shapes. The operator can pull the handle upwards to disengage the limiting rod from the limiting hole, then pull the T-plate to move the gear plate. The gear plate's movement drives the second gear, which in turn rotates the rotating frame via a shaft. When the required clamping block reaches its highest position, the operator pushes the handle downwards again to insert the limiting rod into the limiting hole, thus completing the quick clamping block replacement. This avoids the need for the operator to replace the entire fixture, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machine tool fixture technology, and in particular to a quick-change multi-station machine tool fixture. Background Technology

[0002] In the field of modern machinery manufacturing, the production model is shifting from traditional large-volume, single-product production to flexible, multi-product, small-batch production. This shift places higher demands on machine tool auxiliary equipment. As core equipment for ensuring machining accuracy and improving production efficiency, machine tool fixtures directly affect the flexibility level and overall benefits of the manufacturing system.

[0003] While traditional multi-station fixtures can achieve simultaneous machining of multiple parts, their adaptability is increasingly apparent when facing the demands of rapid product iteration and diverse product types. Current fixtures often feature fixed station layouts, requiring complete fixture replacement when machining parts of different sizes and specifications. This not only increases equipment investment costs but also leads to positioning datum deviations due to frequent disassembly, affecting machining accuracy and stability. Furthermore, existing machine tool fixture structures often use bolted connections between positioning components and the fixture body, necessitating the disassembly of fasteners one by one for replacement—a cumbersome and time-consuming process that fails to meet the demands of rapid product changeovers.

[0004] Therefore, it is necessary to invent a quick-change multi-station machine tool fixture to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the existing fixtures are mostly fixed in their station layout. When processing parts of different sizes and specifications, it is often necessary to replace the entire fixture, which not only increases the cost of equipment investment, but also causes the positioning reference to deviate due to frequent disassembly, affecting the stability of processing accuracy. Therefore, a quick-change multi-station machine tool fixture is provided.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-change multi-station machine tool fixture, comprising a base assembly, the base assembly comprising a base with limit blocks on its surface, a fixture assembly for clamping and fixing workpieces is provided on the base via an adjustment component, a drive mechanism is provided on the fixture assembly, and a quick-change mechanism for quickly changing the fixture assembly is also provided on the base in conjunction with the limit holes.

[0007] As a further description of the above technical solution: the quick-change mechanism includes a T-shaped plate with a second sliding limiting groove on one end surface, a limiting rod slidably disposed on the T-shaped plate and passing through the T-shaped plate, a handle fixedly connected to the top of the limiting rod, the limiting rod matching the size of the limiting hole, two T-shaped sliding rods slidably connected on the second sliding limiting groove, and a toothed plate fixedly connected to one side of the T-shaped sliding rod.

[0008] As a further description of the above technical solution: the adjustment component includes multiple sets of first sliding limit grooves opened on the surface of the base, and a servo motor fixedly connected to one side of the base. A bidirectional lead screw is rotatably arranged in the first sliding limit groove. The output end of the servo motor passes through the base and is fixedly connected to one end of one of the bidirectional lead screws. One end of the bidirectional lead screw passes through the base and is fixedly connected to a first gear. A transmission toothed belt meshes with the outer side of the first gear.

[0009] As a further description of the above technical solution: the clamping assembly includes multiple sets of sliding plates threaded onto a bidirectional lead screw, a T-slot is provided on one side of the sliding plate, a rotating frame is rotatably connected to the sliding plate via a rotating shaft, a plurality of first sliding grooves are provided on the rotating frame, and a second sliding groove is provided at the top of the first sliding groove.

[0010] As a further description of the above technical solution: a plurality of clamping blocks adapted to workpieces of different shapes are slidably arranged in the first sliding grooves, a movable plate with one end passing through the second sliding groove is fixedly connected to the top of the clamping block, a second gear is fixedly connected to one end of the rotating shaft, the T-shaped sliding rod is slidably connected to the movable plate through the T-shaped groove, and the gear plate meshes with the second gear.

[0011] As a further description of the above technical solution: the driving mechanism includes a fixed plate fixedly connected to the top of the sliding plate, and a U-shaped driving block is provided on the fixed plate via an electric push rod.

[0012] As a further description of the above technical solution: the base assembly also includes a mounting base fixedly connected to the bottom of the base, and the mounting base has mounting holes for connecting with the machine tool.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This utility model, by providing a base assembly, a clamping assembly, and a quick-change mechanism, allows the operator to quickly change the clamping block when fixing workpieces of different shapes. The operator can pull the handle upwards to disengage the limiting rod from the limiting hole, then pull the T-plate to move the gear plate. The moving gear plate moves the second gear, which in turn rotates the rotating frame via a shaft. When the required clamping block reaches its highest position, the operator pushes the handle downwards again to insert the limiting rod into the limiting hole. This completes the quick change of the clamping block, avoiding the need for the operator to replace the entire clamp and improving production efficiency.

[0014] 2. This utility model, by incorporating an adjustment component and a clamping component, allows the operator to adjust the clamping distance of the clamping component by activating a servo motor to rotate a bidirectional lead screw. The rotation of the bidirectional lead screw drives the first gear to rotate, thereby causing all bidirectional lead screws to rotate synchronously under the drive of the transmission belt. The rotation of the bidirectional lead screws causes the sliding plates to move away from or towards each other, thus enabling synchronous adjustment of the clamping components at multiple workstations. This avoids the need for operators to manually adjust the clamps at each workstation individually, saving a significant amount of time and improving production efficiency. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown; Figure 2 A schematic diagram of the base assembly structure provided according to an embodiment of the present utility model is shown; Figure 3 A schematic diagram of the quick-change mechanism structure provided according to an embodiment of the present utility model is shown; Figure 4 A schematic diagram of the limiting rod structure provided according to an embodiment of the present utility model is shown; Figure 5 A schematic diagram of the drive mechanism structure provided according to an embodiment of the present utility model is shown; Figure 6 A schematic diagram of the fixture assembly structure provided according to an embodiment of the present invention is shown.

[0016] Legend: 1. Base assembly; 11. Base; 12. Limiting hole; 13. Mounting seat; 14. Mounting hole; 2. Adjustment assembly; 21. First sliding limit groove; 22. Bidirectional lead screw; 23. Servo motor; 24. First gear; 25. Transmission toothed belt; 3. Clamp assembly; 31. Sliding plate; 32. T-slot; 33. Rotating frame; 34. First sliding groove; 35. Second sliding groove; 36. Clamping block; 37. Moving plate; 38. Second gear; 4. Drive mechanism; 41. Fixed plate; 42. Electric push rod; 43. U-shaped drive block; 5. Quick change mechanism; 51. T-plate; 52. Limiting rod; 53. Handle; 54. Second sliding limit groove; 55. T-sliding rod; 56. Toothed plate. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6 The present invention provides a technical solution: a quick-change multi-station machine tool fixture, including a base assembly 1, the base assembly 1 including a base 11 with a limiting block on its surface, the base assembly 1 also including a mounting seat 13 fixedly connected to the bottom of the base 11, the mounting seat 13 having a mounting hole 14 for connecting with a machine tool, the base 11 having a clamping assembly 3 for clamping and fixing a workpiece through an adjustment assembly 2, the clamping assembly 3 having a drive mechanism 4, and the base 11 also having a quick-change mechanism 5 that cooperates with the limiting hole 12 to quickly change the clamping assembly 3.

[0019] Specifically, such as Figure 2 and Figure 3 As shown, the adjustment component 2 includes multiple sets of first sliding limit grooves 21 opened on the surface of the base 11, and a servo motor 23 fixedly connected to one side of the base 11. A bidirectional lead screw 22 is rotatably arranged in the first sliding limit groove 21. The output end of the servo motor 23 passes through the base 11 and is fixedly connected to one end of one of the bidirectional lead screws 22. One end of the bidirectional lead screw 22 passes through the base 11 and is fixedly connected to a first gear 24. A transmission toothed belt 25 meshes with the outer side of the first gear 24.

[0020] Specifically, such as Figures 4-6 As shown, the clamping assembly 3 includes multiple sets of sliding plates 31 threaded onto the bidirectional lead screw 22. A T-slot 32 is provided on one side of the sliding plate 31. A rotating frame 33 is rotatably connected to the sliding plate 31 via a rotating shaft. Multiple first sliding grooves 34 are provided on the rotating frame 33. A second sliding groove 35 is provided at the top of the first sliding grooves 34. Clamping blocks 36 adapted to workpieces of different shapes are slidably arranged in the multiple first sliding grooves 34. A movable plate 37 with one end passing through the second sliding groove 35 is fixedly connected to the top of the clamping block 36. A second gear 38 is fixedly connected to one end of the rotating shaft. The driving mechanism 4 includes a fixed plate 41 fixedly connected to the top of the sliding plate 31. A U-shaped driving block 43 is provided on the fixed plate 41 via an electric push rod 42.

[0021] Therefore, in actual use, the operator first opens the electric push rod 42 to drive the U-shaped drive block 43 to move. The moving plate 37 is initially located in the middle of the U-shaped drive block 43. At this time, the U-shaped drive block 43 drives the moving plate 37 to move and drives the clamping block 36 to slide out of the first sliding groove 34. Then, the operator opens the servo motor 23 according to the size of the workpiece to be clamped. The servo motor 23 rotates and drives the bidirectional lead screw 22 to rotate. The bidirectional lead screw 22 rotates and drives the first gear 24 to rotate. Thus, under the drive of the transmission belt 25, all the bidirectional lead screws 22 rotate synchronously. The rotation of the bidirectional lead screws 22 drives the sliding plate 31 to move closer or further away from each other, thereby driving the rotating frame 33 and the clamping block 36 to move to adapt to the clamping and fixing of workpieces of different sizes.

[0022] Specifically, such as Figures 2-4 As shown, in order to achieve quick replacement of the chuck of the clamp assembly 3, this utility model is provided with a quick-change mechanism 5. The quick-change mechanism 5 includes a T-shaped plate 51 with a second sliding limiting groove 54 on one end surface. A limiting rod 52 is slidably disposed on the T-shaped plate 51 and passes through the T-shaped plate 51. A handle 53 is fixedly connected to the top of the limiting rod 52. The limiting rod 52 matches the size of the limiting hole 12. Two T-shaped sliding rods 55 are slidably connected on the second sliding limiting groove 54. A toothed plate 56 is fixedly connected to one side of the T-shaped sliding rod 55. The T-shaped sliding rod 55 and the moving plate 37 are slidably connected through the T-shaped groove 32. The toothed plate 56 meshes with the second gear 38.

[0023] Therefore, when it is necessary to replace the clamping block 36, the operator pulls the handle 53 upward to move the limiting rod 52 out of the limiting hole 12, and then pulls the T-shaped plate 51 to move the toothed plate 56. The movement of the toothed plate 56 moves the second gear 38, which in turn drives the rotating frame 33 to rotate through the rotating shaft. When the required clamping block 36 is rotated to the top, the operator pushes the handle 53 downward again to move the limiting rod 52 into the limiting hole 12. At this time, the clamping block 36 can be quickly replaced, avoiding the need for the operator to replace the entire fixture and improving production efficiency.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change multi-station machine tool fixture, characterized in that: The base assembly (1) includes a base (11) with a limiting block on its surface. The base (11) is provided with a clamping assembly (3) for clamping and fixing the workpiece via an adjustment assembly (2). The clamping assembly (3) is provided with a drive mechanism (4). The base (11) is also provided with a quick-change mechanism (5) that cooperates with the limiting hole (12) to quickly change the clamping assembly (3).

2. The quick-change multi-station machine tool fixture according to claim 1, characterized in that: The quick-change mechanism (5) includes a T-shaped plate (51) with a second sliding limiting groove (54) on one end surface. A limiting rod (52) passing through the T-shaped plate (51) is slidably arranged on the T-shaped plate (51). A handle (53) is fixedly connected to the top of the limiting rod (52). The size of the limiting rod (52) matches that of the limiting hole (12). Two T-shaped sliding rods (55) are slidably connected on the second sliding limiting groove (54). A toothed plate (56) is fixedly connected to one side of the T-shaped sliding rod (55).

3. A quick-change multi-station machine tool fixture according to claim 2, characterized in that: The adjustment component (2) includes multiple sets of first sliding limit grooves (21) opened on the surface of the base (11) and a servo motor (23) fixedly connected to one side of the base (11). A bidirectional lead screw (22) is rotatably arranged in the first sliding limit groove (21). The output end of the servo motor (23) passes through the base (11) and is fixedly connected to one end of one of the bidirectional lead screws (22). One end of the bidirectional lead screw (22) passes through the base (11) and is fixedly connected to a first gear (24). A transmission toothed belt (25) meshes with the outside of the first gear (24).

4. A quick-change multi-station machine tool fixture according to claim 3, characterized in that: The clamp assembly (3) includes multiple sets of sliding plates (31) threaded onto a bidirectional lead screw (22). A T-slot (32) is provided on one side of the sliding plate (31). A rotating frame (33) is rotatably connected to the sliding plate (31) via a rotating shaft. Multiple first sliding grooves (34) are provided on the rotating frame (33). A second sliding groove (35) is provided at the top of the first sliding groove (34).

5. A quick-change multi-station machine tool fixture according to claim 4, characterized in that: Multiple first sliding grooves (34) are slidably provided with clamping blocks (36) adapted to workpieces of different shapes. The top of the clamping block (36) is fixedly connected to a moving plate (37) with one end passing through the second sliding groove (35). One end of the rotating shaft is fixedly connected to a second gear (38). The T-shaped sliding rod (55) and the moving plate (37) are slidably connected through the T-shaped groove (32). The toothed plate (56) meshes with the second gear (38).

6. A quick-change multi-station machine tool fixture according to claim 5, characterized in that: The drive mechanism (4) includes a fixed plate (41) fixedly connected to the top of the sliding plate (31), and a U-shaped drive block (43) is provided on the fixed plate (41) via an electric push rod (42).

7. A quick-change multi-station machine tool fixture according to claim 1, characterized in that: The base assembly (1) further includes a mounting base (13) fixedly connected to the bottom of the base (11), and the mounting base (13) has mounting holes (14) for connecting with the machine tool.

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