A type of aluminum cap positioning fixture

Abstract

This utility model discloses an aluminum cap positioning fixture, including a worktable, a chuck, and a positioning post. The chuck is set on the worktable, and the positioning post is vertically connected to the center of the chuck. A workpiece is sleeved on the positioning post. Several rotating seats are set on the edge of the chuck, and a first lead screw is rotatably connected to each rotating seat. A stop block is rotatably connected to the end of the first lead screw. The bottom surface of the stop block abuts against the chuck, and the end face facing the workpiece is an arc surface that abuts against the edge of the workpiece. The workpiece is sleeved on the positioning post, ensuring accurate positioning. When the first lead screw rotates in the rotating seats, the stop block connected to the end of the first lead screw moves towards the workpiece until it abuts against the workpiece. Because the end face of the first lead screw is an arc surface, it matches the edge of the workpiece, preventing the workpiece from rotating around the positioning post. Several stops surround the workpiece, comprehensively clamping it. There is no loosening, resulting in good processing effect.

Description

Technical Field

[0001] This utility model relates to the field of aluminum end cap processing technology, and in particular to an aluminum end cap positioning fixture. Background Technology

[0002] With the rapid development of the aluminum products industry, aluminum caps, due to their advantages such as light weight and corrosion resistance, are widely used in the components of electromechanical products. In the deep processing of aluminum caps, positioning fixtures play a crucial role, ensuring that the aluminum caps maintain accurate positions during processing steps such as drilling, engraving, and coating, thus guaranteeing processing precision.

[0003] However, existing aluminum cap positioning fixtures have some shortcomings. Firstly, for aluminum caps with special shapes, such as those with protrusions, grooves, or inclined edges, traditional fixtures interfere with these features during clamping. This prevents complete workpiece clamping, leading to inaccurate positioning and loosening, thus affecting processing results. Secondly, existing fixtures are fixed to a specific workstation and can only be used at that station, unable to be moved to the next station for further workpiece processing. Furthermore, after a period of use, the positioning components are prone to wear, resulting in decreased positioning accuracy and a shorter service life. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an aluminum cover positioning fixture to solve one of the problems described in the background section.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an aluminum cover positioning fixture, including a worktable, a chuck, and a positioning post. The chuck is set on the worktable, and the positioning post is vertically connected to the center of the chuck. A workpiece is sleeved on the positioning post. Several rotating seats are provided on the edge of the chuck. A first lead screw is rotatably connected to the rotating seats. A stop block is rotatably connected to the end of the first lead screw. The bottom surface of the stop block abuts against the chuck, and the end face facing the workpiece is an arc surface, which abuts against the edge of the workpiece.

[0006] The present invention is further configured such that: a through hole is provided in the stop block, an installation groove is provided at the center of the arc surface, a retaining spring is provided in the installation groove, the retaining spring is connected to the end of the first lead screw, a fixing ring is fixedly connected to the first lead screw, and the fixing ring and the retaining spring are respectively provided at both ends of the through hole.

[0007] A further feature of this invention is that a knob is provided at the end of the first lead screw.

[0008] The present invention is further configured such that: an anti-slip pad is connected to the arc surface, and the stop block abuts against the edge of the workpiece through the anti-slip pad.

[0009] The present invention is further configured such that: a slide groove is provided on the worktable, a slider is slidably connected in the slide groove, and the slider is fixedly connected to the chuck.

[0010] The present invention is further configured such that: a servo motor and a pair of fixed and rotating seats are fixedly connected to the worktable; a second lead screw is rotatably arranged between the pair of fixed and rotating seats; the second lead screw is connected to the output shaft of the servo motor through a coupling; a nut seat is screwed onto the second lead screw; and the nut seat is fixedly connected to the chuck through a connecting rod.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting a positioning post at the center of the chuck, the workpiece is sleeved on the positioning post, ensuring accurate positioning. By setting several rotating seats on the edge of the chuck, when the first lead screw rotates in the rotating seats, the stop block connected to the end of the first lead screw moves towards the workpiece until it abuts against the workpiece. Since the end face of the first lead screw is an arc surface, it matches the edge of the workpiece, preventing the workpiece from rotating around the positioning post. Several stops surround the workpiece to comprehensively clamp it, preventing loosening and resulting in good processing effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the aluminum cover positioning fixture shown in a preferred embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the stop assembly.

[0014] In the diagram: 1. Worktable; 2. Slide rail; 3. Chuck; 4. Slider; 5. Positioning pin; 6. Workpiece; 7. Second lead screw; 8. Servo motor; 9. Coupling; 10. Rotary seat; 11. Nut seat; 12. Rotary seat; 13. First lead screw; 14. Fixed ring; 15. Stop block; 16. Knob; 17. Mounting groove; 18. Anti-slip pad; 19. Through hole; 20. Snap ring; 21. Connecting rod. Detailed Implementation

[0015] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0016] See appendix Figure 1-2As shown, an aluminum cap positioning fixture in this embodiment includes a worktable 1, a chuck 3, and a positioning post 5. The chuck 3 is set on the worktable 1, and the positioning post 5 is vertically connected to the center of the chuck 3. A workpiece 6 is sleeved on the positioning post 5. Several rotating seats 12 are provided on the edge of the chuck 3. A first lead screw 13 is rotatably connected to the rotating seat 12. A stop block 15 is rotatably connected to the end of the first lead screw 13. The bottom surface of the stop block 15 abuts against the chuck 3, and the end face facing the workpiece 6 is an arc surface, which abuts against the edge of the workpiece 6.

[0017] A positioning post 5 is set at the center of the chuck 3, and the workpiece 6 is fitted onto the positioning post 5. Positioning is accurate. Several rotating seats 12 are set at the edge of the chuck 3. When the first lead screw 13 rotates in the rotating seats 12, the stop block 15 connected to the end of the first lead screw 13 moves towards the workpiece 6 until it abuts against the workpiece 6. Since the end face of the stop block 15 is an arc surface, it matches the edge of the workpiece 6, preventing the workpiece 6 from rotating around the positioning post 5. Several stop blocks 15 surround the workpiece 6, clamping it tightly. There is no loosening, and the processing effect is good. Even after a period of use, even if the stop block 15 wears, by adjusting the feed length of the first lead screw 13, the stop block 15 can still maintain close contact with the workpiece 6.

[0018] To facilitate the movement of the stop block 15 toward the workpiece 6 when the first lead screw 13 rotates, this invention is further configured as follows: the stop block 15 has a through hole 19, and the center of the arc surface has a mounting groove 17. A retaining spring 20 is installed in the mounting groove 17 and connected to the end of the first lead screw 13. A fixing ring 14 is fixedly connected to the first lead screw 13, and the fixing ring 14 and the retaining spring 20 are respectively located at both ends of the through hole 19. Since the bottom surface of the stop block 15 abuts against the chuck 3, when the first lead screw 13 rotates in the forward direction, the fixing ring 14 pushes the stop block 15 to move, so that the stop block 15 clamps the workpiece 6. When the first lead screw 13 rotates in the reverse direction, the retaining spring 20 pulls the stop block 15 to move, so that the stop block 15 moves away from the workpiece 6.

[0019] To facilitate the operation of rotating the first lead screw 13, the present invention is further configured such that a knob 16 is provided at the end of the first lead screw 13.

[0020] To prevent relative sliding between the stop block 15 and the workpiece 6, this invention is further configured such that an anti-slip pad 18 is connected to the arc surface, and the stop block 15 abuts against the edge of the workpiece 6 through the anti-slip pad 18. This improves the clamping stability.

[0021] To facilitate the transfer of workpiece 6 to the next workstation for processing, this invention further includes a slide groove 2 on the worktable 1, with a slider 4 slidably connected within the slide groove 2. The slider 4 is fixedly connected to the chuck 3. Preferably, the slider 4 is a long strip-shaped slider. By sliding the slider 4 within the slide groove 2, the position of the chuck 3 is changed until the chuck 3 moves to the next workstation for processing. Processing can be performed directly without changing the fixture or disassembling and reinstalling the workpiece 6 from the fixture, thus improving processing efficiency.

[0022] To facilitate the movement of workpiece 6 between different workstations, this invention further comprises: a servo motor 8 and a pair of fixed and rotating seats 10 are fixedly connected to the worktable 1; a second lead screw 7 is rotatably mounted between the pair of fixed and rotating seats 10; the second lead screw 7 is connected to the output shaft of the servo motor 8 via a coupling 9; a nut seat 11 is screwed onto the second lead screw 7; and the nut seat 11 is fixedly connected to the chuck 3 via a connecting rod 21. When the servo motor 8 is started, the second lead screw 7 rotates within the fixed and rotating seats 10 via the coupling 9. Since the nut seat 11 is fixedly connected to the chuck 3 via the connecting rod 21, the nut seat 11 cannot rotate, but can only move axially along the second lead screw 7. During the movement of the nut seat 11, the workpiece 6 moves between different workstations via the connecting rod 21, facilitating sequential processing of workpiece 6 at each workstation.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. An aluminum cover positioning fixture, comprising a worktable (1), a chuck (3) and a positioning post (5), wherein the chuck (3) is set on the worktable (1), the positioning post (5) is vertically connected to the center of the chuck (3), and a workpiece (6) is sleeved on the positioning post (5). Its features are, The chuck (3) has several rotating seats (12) on its edge. A first lead screw (13) is rotatably connected to the rotating seat (12). A stop block (15) is rotatably connected to the end of the first lead screw (13). The bottom surface of the stop block (15) abuts against the chuck (3), and the end face facing the workpiece (6) is an arc surface. The arc surface abuts against the edge of the workpiece (6).

2. The aluminum cap positioning fixture according to claim 1, characterized in that, The stop block (15) is provided with a through hole (19), and the center of the arc surface is provided with a mounting groove (17). A retaining ring (20) is provided in the mounting groove (17). The retaining ring (20) is connected to the end of the first lead screw (13). A fixing ring (14) is fixedly connected to the first lead screw (13). The fixing ring (14) and the retaining ring (20) are respectively provided at both ends of the through hole (19).

3. The aluminum cap positioning fixture according to claim 1, characterized in that, The first lead screw (13) is provided with a knob (16) at its end.

4. The aluminum cover positioning fixture according to claim 1, characterized in that, An anti-slip pad (18) is connected to the arc surface, and the stop block (15) abuts against the edge of the workpiece (6) through the anti-slip pad (18).

5. The aluminum cap positioning fixture according to claim 1, characterized in that, The workbench (1) is provided with a slide groove (2), and a slider (4) is slidably connected in the slide groove (2). The slider (4) is fixedly connected to the chuck (3).

6. The aluminum cover positioning fixture according to claim 1, characterized in that, A servo motor (8) and a pair of fixed seats (10) are fixedly connected to the worktable (1). A second lead screw (7) is rotatably arranged between the pair of fixed seats (10). The second lead screw (7) is connected to the output shaft of the servo motor (8) through a coupling (9). A nut seat (11) is screwed onto the second lead screw (7). The nut seat (11) is fixedly connected to the chuck (3) through a connecting rod (21).

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