An expansion screw machining fixture
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]针对现有技术的不足,本实用新型提供了一种膨胀螺丝加工夹具,解决了膨胀螺丝需要特殊定制或处理少量膨胀螺丝时,会选择单个切割的方式,通常需要不断开合夹具,以此更换需切割的物料,确保每个膨胀螺丝的切割面都达到要求的标准,从而提高整体加工质量,此种方式保证了加工质量,但降低了生产效率,并且更换时,刀具与操作员的距离过近,存在安全隐患
[0012]本实用新型公开了一种膨胀螺丝加工夹具,其具备的有益效果如下:该装置通过在加工台体顶部等距设置多组定位件,配合夹持机构对定位件进行夹持固定,无需不断开合夹具来更换物料,有效提高了生产效率。同时,操作员无需靠近刀具更换物料,降低了安全隐患。
Smart Images

Figure CN224630613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of expansion screw production and processing technology, specifically an expansion screw processing fixture. Background Technology
[0002] Expansion bolts are a widely used type of fastener. Their unique design enables them to withstand loads under conditions such as high pressure and vibration while providing strong support and fixing force. Their manufacturing process involves cutting, turning, heat treatment, surface treatment, and assembly. Strict control over the quality and process requirements of each step is essential to producing high-quality and reliable expansion bolt products.
[0003] When special customization of expansion screws is required or a small number of expansion screws are processed, a single-cut method is often chosen. This usually requires constantly opening and closing the fixture to change the material to be cut, ensuring that the cut surface of each expansion screw meets the required standard, thereby improving the overall processing quality. This method guarantees processing quality but reduces production efficiency. Furthermore, the distance between the tool and the operator is too close during the changeover, posing a safety hazard. Therefore, we propose a new expansion screw processing fixture to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an expansion screw processing fixture. This solves the problem that when expansion screws need to be specially customized or a small number of expansion screws are processed, the method of cutting them individually is often chosen. This usually requires constantly opening and closing the fixture to change the material to be cut, ensuring that the cut surface of each expansion screw meets the required standard, thereby improving the overall processing quality. However, this method guarantees processing quality but reduces production efficiency. Furthermore, when changing the tool, the distance between the tool and the operator is too close, posing a safety hazard.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an expansion screw processing fixture, including a processing table, with multiple sets of positioning elements equidistantly arranged on the top of the processing table, and a clamping mechanism provided on the top of the processing table, the clamping mechanism including a push-pull cylinder, a positioning box and clamping elements; The positioning box is located on one side of the push-pull cylinder, which is driven by the positioning box. The push-pull cylinder is used to drive the positioning box to move vertically. The clamping member is located inside the positioning box and is used to clamp and fix the positioning member.
[0006] Preferably, a conveyor belt is rotatably connected to the top of the processing table, and the positioning element is fixedly connected to the outer surface of the conveyor belt.
[0007] Preferably, the positioning element includes a fixing box, a slider, and a spring; The two sets of sliders are slidably connected inside the fixed box, and the spring is fixedly installed inside the fixed box. One end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the fixed box.
[0008] Preferably, a connecting strip is fixedly assembled on one side of the positioning box, and the output shaft of the push-pull cylinder is fixedly assembled with the connecting strip.
[0009] Preferably, the clamping member includes a clamping ring and a bidirectional lead screw; The clamping ring is slidably connected inside the positioning box; the bidirectional lead screw is rotatably connected inside the positioning box, and the bidirectional lead screw is threadedly engaged with the clamping ring.
[0010] Preferably, the clamping member further includes a guide rod and a drive motor; The guide rod is fixedly assembled inside the positioning box and passes through the clamping ring; the drive motor is fixedly assembled on one side of the positioning box and the output shaft of the drive motor is fixedly assembled with the bidirectional lead screw.
[0011] Preferably, a collection hole is provided on one side of the processing table.
[0012] This utility model discloses an expansion screw processing fixture, which has the following beneficial effects: The device uses multiple sets of positioning components equidistantly arranged on the top of the processing table, which, in conjunction with a clamping mechanism, clamp and fix the positioning components, eliminating the need to constantly open and close the fixture to change materials, thus effectively improving production efficiency. At the same time, the operator does not need to approach the cutting tool to change materials, reducing safety hazards. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an internal sectional view of the positioning component of this utility model; Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.
[0015] In the diagram: 1. Machining table; 2. Conveyor belt; 3. Positioning component; 301. Fixing box; 302. Slider; 303. Spring; 4. Clamping mechanism; 401. Push-pull cylinder; 402. Connecting bar; 403. Positioning box; 404. Clamping ring; 405. Two-way lead screw; 406. Guide rod; 407. Drive motor; 5. Collection hole. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] This application provides an expansion screw processing fixture, which solves the problem that when expansion screws need to be specially customized or a small number of expansion screws are processed, the method of cutting them individually is usually chosen. This usually requires constantly opening and closing the fixture to change the material to be cut, ensuring that the cut surface of each expansion screw meets the required standard, thereby improving the overall processing quality. This method guarantees processing quality and improves production efficiency. However, when changing the tool, the distance between the tool and the operator is too close, which poses a safety hazard.
[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0019] This utility model provides, for example Figure 1 The expansion screw processing fixture shown includes a processing table 1, with multiple sets of positioning elements 3 evenly arranged on the top of the processing table 1, and a clamping mechanism 4 provided on the top of the processing table 1. The clamping mechanism 4 includes a push-pull cylinder 401, a positioning box 403, and clamping elements. The positioning box 403 is located on one side of the push-pull cylinder 401. The push-pull cylinder 401 is driven to connect with the positioning box 403. The push-pull cylinder 401 is used to drive the positioning box 403 to move vertically. The clamping member is located inside the positioning box 403. The clamping member is used to clamp and fix the positioning member 3.
[0020] Example 1: In this example, the expansion screw to be processed is first placed between the two sets of sliders 302 of the positioning component 3. Then, the conveyor belt 2 is started. During the rotation of the conveyor belt 2, the positioning component 3 fixed on the outer surface moves synchronously, accurately conveying the positioning component 3 with the expansion screw to the bottom of the clamping mechanism 4, completing the automatic feeding of materials. When the positioning component 3 reaches the designated position, the clamping mechanism 4 starts to work to stably clamp the expansion screw. Then, the processing equipment can be started to perform cutting, grinding and other processing operations on the expansion screw. After processing, the screw falls into the collection device through the collection hole 5 on one side of the processing table 1 for centralized collection. At the same time, the next set of positioning components 3 with the expansion screw to be processed is conveyed to the bottom of the clamping mechanism 4. This cycle realizes continuous processing without the need for frequent manual material replacement, which not only improves production efficiency but also avoids the safety risks caused by the operator being close to the cutting tool.
[0021] like Figures 2 to 3 The expansion screw processing fixture shown includes a processing table 1, with multiple sets of positioning elements 3 evenly arranged on the top of the processing table 1, and a clamping mechanism 4 provided on the top of the processing table 1. The clamping mechanism 4 includes a push-pull cylinder 401, a positioning box 403, and clamping elements. The positioning box 403 is located on one side of the push-pull cylinder 401. The push-pull cylinder 401 is driven to connect with the positioning box 403. The push-pull cylinder 401 is used to drive the positioning box 403 to move vertically. The clamping member is located inside the positioning box 403. The clamping member is used to clamp and fix the positioning member 3.
[0022] A conveyor belt 2 is rotatably connected to the top of the processing table 1, and a positioning component 3 is fixedly connected to the outer surface of the conveyor belt 2. The positioning component 3 includes a fixed box 301, a slider 302, and a spring 303; two sets of sliders 302 are slidably connected inside the fixed box 301, and the spring 303 is fixedly installed inside the fixed box 301. One end of the spring 303 is fixedly connected to the slider 302, and the other end of the spring 303 is fixedly connected to the fixed box 301. A connecting strip 402 is fixedly assembled on one side of the positioning box 403, and the output shaft of the push-pull cylinder 401 is fixedly assembled to the connecting strip 402. The clamping component includes a clamping ring 404 and a bidirectional lead screw 405; the clamping ring 404 is slidably connected inside the positioning box 403; the bidirectional lead screw 405 is rotatably connected inside the positioning box 403, and the bidirectional lead screw 405 is threadedly engaged with the clamping ring 404. The clamping components also include a guide rod 406 and a drive motor 407; the guide rod 406 is fixedly assembled inside the positioning box 403 and passes through the clamping ring 404; the drive motor 407 is fixedly assembled on one side of the positioning box 403, and the output shaft of the drive motor 407 is fixedly assembled with a bidirectional lead screw 405. A collection hole 5 is provided on one side of the processing table 1.
[0023] Example 2: In this example, the positioning box 403 is fixedly connected to the output shaft of the push-pull cylinder 401 via a connecting strip 402 fixed on one side. When the positioning component 3 is delivered to the bottom of the clamping mechanism 4, the push-pull cylinder 401 is activated, its output shaft extends and drives the positioning box 403 to move vertically downwards through the connecting strip 402 until the positioning component 3 is completely inside the positioning box 403, preparing for subsequent clamping. Then, the drive motor 407 is activated, and the output shaft of the drive motor 407 rotates, driving the bidirectional lead screw 405 fixedly connected to it to rotate synchronously. Since the bidirectional lead screw 405 and the clamping ring 404 are connected by a threaded engagement, and the guide rod 406 fixed inside the positioning box 403 passes through the clamping ring 404, the guide rod 406 can restrict the clamping ring 404 from rotating with the bidirectional lead screw 405, so that the clamping ring 404 slides towards the positioning component 3 along the length direction of the guide rod 406 under the action of the threaded driving force of the bidirectional lead screw 405.
[0024] When the two sets of clamping rings 404 are in close contact with both sides of the positioning component 3, the drive motor 407 stops working. At this time, the clamping rings 404 form a stable clamp on the positioning component 3 and the internal expansion screw, ensuring that the expansion screw will not be displaced during processing and guaranteeing processing accuracy. After processing is completed, the drive motor 407 reverses, driving the bidirectional lead screw 405 to rotate in the opposite direction. The clamping rings 404 move away from the positioning component 3 along the guide rod 406, releasing the clamping state. At the same time, the output shaft of the push-pull cylinder 401 retracts, driving the positioning box 403 to vertically return to its original position through the connecting bar 402, making room for the next set of positioning components 3 to enter.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An expansion screw machining jig characterized by, The machine includes a processing table (1), on which multiple sets of positioning components (3) are equidistantly arranged at the top. A clamping mechanism (4) is provided on the top of the processing table (1), and the clamping mechanism (4) includes a push-pull cylinder (401), a positioning box (403) and clamping components. The positioning box (403) is located on one side of the push-pull cylinder (401). The push-pull cylinder (401) is driven to connect with the positioning box (403). The push-pull cylinder (401) is used to drive the positioning box (403) to move vertically. The clamping member is located inside the positioning box (403). The clamping member is used to clamp and fix the positioning member (3).
2. An expansion screw machining jig according to claim 1, wherein: The top of the processing table (1) is rotatably connected to a conveyor belt (2), and the positioning element (3) is fixedly connected to the outer surface of the conveyor belt (2).
3. An expansion screw machining jig according to claim 1, wherein: The positioning component (3) includes a fixed box (301), a slider (302), and a spring (303); The two sets of sliders (302) are slidably connected inside the fixed box (301), and the spring (303) is fixedly installed inside the fixed box (301). One end of the spring (303) is fixedly connected to the slider (302), and the other end of the spring (303) is fixedly connected to the fixed box (301).
4. The expansion screw machining fixture of claim 1, wherein: A connecting strip (402) is fixedly assembled on one side of the positioning box (403), and the output shaft of the push-pull cylinder (401) is fixedly assembled with the connecting strip (402).
5. The expansion screw machining fixture of claim 1, wherein: The clamping element includes: A clamping ring (404) is slidably connected inside the positioning box (403); A bidirectional lead screw (405) is rotatably connected inside the positioning box (403), and the bidirectional lead screw (405) is threadedly engaged with the clamping ring (404).
6. An expansion screw machining jig according to claim 5, wherein: The clamping element further includes: A guide rod (406) is fixedly assembled inside the positioning box (403), and the guide rod (406) passes through the clamping ring (404). A drive motor (407) is fixedly mounted on one side of the positioning box (403), and the output shaft of the drive motor (407) is fixedly mounted with a bidirectional lead screw (405).
7. An expansion screw machining fixture according to claim 1, wherein: A collection hole (5) is provided on one side of the processing table (1).