A positioning device for hardware machining
By using a cylinder to drive the wedge block and slider structure, combined with a spring reset mechanism, the problems of clamping force attenuation and vibration loosening in the hardware processing positioning device are solved, achieving high-precision and convenient hardware processing positioning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YONGCHANG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-09
AI Technical Summary
In existing hardware processing positioning devices, the spring clamping structure has the risk of clamping force attenuation and loosening under vibration, resulting in inaccurate positioning and safety hazards.
The system employs a cylinder-driven wedge block and slider structure, combined with a spring reset mechanism, to achieve reliable clamping and release of the clamping plate. This, along with the cylinder-driven positioning of the machining tool, ensures positioning accuracy and ease of operation during the hardware processing.
It improves the positioning accuracy and ease of operation in the hardware processing process, avoids the problems of clamping force attenuation and vibration loosening, and ensures processing quality and safety.
Smart Images

Figure CN224334007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hardware processing technology, specifically to a positioning device for hardware processing. Background Technology
[0002] Hardware generally refers to a general term for metal products. The origin of this term can be traced back to ancient times, when five metals—gold, silver, copper, iron, and tin—were called "five metals." Now, this concept has expanded to include more metal materials and their products. In modern society, hardware is even more extensive, including hardware tools, hardware components, daily-use hardware, building hardware, and security products.
[0003] In the field of metal processing, the clamping and positioning accuracy of workpieces directly affects product processing quality and production efficiency. Currently, most metal processing positioning devices use spring clamping structures to fix workpieces. While this method is simple in structure and low in cost, it has significant technical drawbacks in practical applications:
[0004] Clamping force decay leads to positioning failure: Spring clamping relies on elastic deformation to generate clamping force. After long-term use, it is prone to elastic decay due to metal fatigue. Especially in high-frequency machining scenarios, the gradual weakening of clamping force will cause the workpiece to shift during the machining process, resulting in quality problems such as hole diameter deviation and excessive surface roughness.
[0005] Risk of loosening under vibration: Mechanical vibrations generated during metal processing (such as milling and drilling) can cause periodic fluctuations in the spring clamping force. When the vibration frequency is close to the spring's natural frequency, resonance can easily occur, leading to the loosening of the clamping mechanism, or even causing the workpiece to fall off, resulting in equipment failure or safety accidents.
[0006] To address this issue, we propose a positioning device for hardware processing. Utility Model Content
[0007] The purpose of this invention is to provide a positioning device for hardware processing, which solves the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for hardware processing, comprising a worktable, the top surface of which has symmetrically arranged first rectangular openings, a slider slidably disposed on the inner wall of the first rectangular opening, a cylindrical rod fixedly installed on the inner wall of the first rectangular opening and slidably sleeved between the slider and the rod, a clamping plate fixedly installed on one side of the upper end of the slider, a second wedge block fixedly installed on the bottom end of the slider, a first wedge block slidably disposed on one side of the second wedge block, the contact surfaces of the first wedge block and the second wedge block being inclined surfaces, a U-shaped rod fixedly installed on the bottom surface of the second wedge block, and a first cylinder fixedly installed on the bottom surface of the U-shaped rod.
[0009] Preferably, two support frames are symmetrically and fixedly installed on the bottom surface of the workbench, which can provide stable support for the entire device.
[0010] Preferably, a rubber pad is fixedly installed on the side of the clamping plate away from the slider, so as to avoid damage to the clamped hardware.
[0011] Preferably, a spring is fitted on the outer wall of the cylindrical rod. One end of the spring is fixedly installed to the inner wall of the first rectangular opening, and the other end of the spring is fixedly installed to one side of the slider. The installed spring can automatically reset the clamp when it is loosened.
[0012] Preferably, a mounting bracket is fixedly installed on the bottom surface of the first cylinder, and both ends of the mounting bracket are fixedly installed on the inner side of the support frame. The first cylinder can be stably installed by the mounting bracket, avoiding the first cylinder being in a suspended position.
[0013] Preferably, a U-shaped plate is fixedly installed on the top surface of the workbench, a second rectangular opening is provided on the top surface of the U-shaped plate, a T-shaped block is slidably arranged on the inner wall of the second rectangular opening, an mounting plate is fixedly installed on the bottom surface of the T-shaped block, and a tool for processing hardware is fixedly installed on the bottom surface of the mounting plate.
[0014] Preferably, a connecting rod is fixedly installed on one side of the T-block, and a second cylinder is fixedly installed on the end of the connecting rod away from the T-block. The lower surface of the bottom of the second cylinder is fixedly installed with the top surface of the U-shaped plate.
[0015] This utility model provides a positioning device for hardware processing. This positioning device for hardware processing has the following advantages:
[0016] This positioning device for hardware processing uses the extension and retraction of the first cylinder to drive the first wedge block, the second wedge block, and the slider, thereby clamping and releasing the hardware parts. At the same time, the second cylinder drives the positioning of the processing tool. Combined with spring reset and a stable support structure, it ensures positioning accuracy and ease of operation during hardware processing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a positioning device for hardware processing according to the present invention;
[0018] Figure 2 This utility model relates to a positioning device for hardware processing. Figure 1 A schematic diagram of the equiaxed side structure;
[0019] Figure 3This utility model relates to a positioning device for hardware processing. Figure 2 Enlarged structural diagram at point A in the diagram;
[0020] Figure 4 This utility model relates to a positioning device for hardware processing. Figure 1 A schematic diagram of the structure viewed from below.
[0021] In the diagram: 1. Workbench; 2. Support frame; 3. First rectangular opening; 4. Slider; 5. Column rod; 6. Spring; 7. Clamping plate; 8. Rubber pad; 9. First cylinder; 10. Mounting bracket; 11. First wedge block; 12. Second wedge block; 13. U-shaped rod; 14. Second cylinder; 15. Connecting rod; 16. T-block; 17. Second rectangular opening; 18. U-shaped plate; 19. Mounting plate. Detailed Implementation
[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0023] A preferred embodiment of the positioning device for hardware processing provided by this utility model is, for example... Figures 1 to 4 The diagram shows a positioning device for hardware processing, comprising a worktable 1. Two support frames 2 are symmetrically fixedly installed on the bottom surface of the worktable 1, providing stable support for the entire device. The top surface of the worktable 1 has symmetrically arranged first rectangular openings 3. A slider 4 is slidably mounted on the inner wall of the first rectangular opening 3. A cylindrical rod 5 is fixedly installed on the inner wall of the first rectangular opening 3, slidingly sleeved between it and the slider 4. A clamping plate 7 is fixedly installed on one side of the upper end of the slider 4, and a rubber pad 8 is fixedly installed on the side of the clamping plate 7 away from the slider 4 to prevent damage to the clamped hardware. A second wedge block 12 is fixedly installed at the bottom end of the slider 4, and a first wedge block 11 is slidably mounted on one side of the second wedge block 12. The contact surfaces of the first wedge block 11 and the second wedge block 12 are both inclined surfaces. A U-shaped rod 13 is fixedly installed on the bottom surface of the second wedge block 12. A first cylinder 9 is fixedly installed on the bottom surface of the U-shaped rod 13. A mounting bracket 10 is fixedly installed on the bottom surface of the first cylinder 9. Both ends of the mounting bracket 10 are fixedly installed on the inner side of the support frame 2. The mounting bracket 10 can securely install the first cylinder 9 and prevent the first cylinder 9 from being in a suspended position. A spring 6 is sleeved on the outer wall of the column rod 5. One end of the spring 6 is fixedly installed on the inner wall of the first rectangular opening 3, and the other end of the spring 6 is fixedly installed on one side of the slider 4. The spring 6 can automatically reset the clamping plate 7 when it is loosened. After the first cylinder 9 is started, the clamping plate 7 moves to clamp the hardware through the linkage of the U-shaped rod 13, the first wedge block 11, the second wedge block 12, and the slider 4. The rubber pad 8 avoids damage to the workpiece and provides stable support for processing.
[0024] A U-shaped plate 18 is fixedly installed on the top surface of the workbench 1. A second rectangular opening 17 is opened on the top surface of the U-shaped plate 18. A T-shaped block 16 is slidably arranged on the inner wall of the second rectangular opening 17. A mounting plate 19 is fixedly installed on the bottom surface of the T-shaped block 16. A tool for processing hardware is fixedly installed on the bottom surface of the mounting plate 19. A connecting rod 15 is fixedly installed on one side of the T-shaped block 16. A second cylinder 14 is fixedly installed at the end of the connecting rod 15 away from the T-shaped block 16. The lower surface of the bottom surface of the second cylinder 14 is fixedly installed with the top surface of the U-shaped plate 18. When the second cylinder 14 is activated, the T-shaped block 16 is driven through the connecting rod, so that the mounting plate 19 carries the processing tool to the designated position.
[0025] Working principle: The hardware to be processed is placed between two clamping plates 7. Then, the first cylinder 9 is activated, which moves the U-shaped rod 13 downward. During the downward movement of the U-shaped rod 13, the first wedge block 11 moves downward. The downward movement of the first wedge block 11 moves the second wedge block 12. The movement of the second wedge block 12 moves the slider 4. The movement of the slider 4 moves the clamping plate 7 until the hardware is clamped, facilitating processing. After clamping, the second cylinder 14 is activated, which moves the connecting rod 15 to drive the T-shaped block 16, causing the mounting plate 19 to move the processing tool to the required processing position, which is extremely convenient. After processing, the first cylinder 9 is activated again, which moves the first wedge block 11 upward. With the spring 6 in place, the clamping plate 7 can be gradually reset, making it easy to remove the hardware.
[0026] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.
Claims
1. A positioning device for hardware processing, comprising a worktable (1), characterized in that: The top surface of the workbench (1) has a first rectangular opening (3) symmetrically arranged. A slider (4) is slidably arranged on the inner wall of the first rectangular opening (3). A cylindrical rod (5) is fixedly installed on the inner wall of the first rectangular opening (3) and is slidably sleeved with the slider (4). A clamping plate (7) is fixedly installed on one side of the upper end of the slider (4). A second wedge block (12) is fixedly installed on the bottom end of the slider (4). A first wedge block (11) is slidably arranged on one side of the second wedge block (12). The surfaces of the first wedge block (11) and the second wedge block (12) that contact each other are both inclined. A U-shaped rod (13) is fixedly installed on the bottom surface of the second wedge block (12). A first cylinder (9) is fixedly installed on the bottom surface of the U-shaped rod (13).
2. The positioning device for hardware processing according to claim 1, characterized in that: The bottom surface of the workbench (1) is symmetrically and fixedly equipped with two support frames (2).
3. The positioning device for hardware processing according to claim 1, characterized in that: A rubber pad (8) is fixedly installed on the side of the clamp (7) away from the slider (4).
4. The positioning device for hardware processing according to claim 1, characterized in that: A spring (6) is fitted on the outer wall of the cylindrical rod (5). One end of the spring (6) is fixedly installed on the inner wall of the first rectangular opening (3), and the other end of the spring (6) is fixedly installed on one side of the slider (4).
5. A positioning device for hardware processing according to claim 1, characterized in that: The bottom surface of the first cylinder (9) is fixedly mounted with a mounting bracket (10), and both ends of the mounting bracket (10) are fixedly mounted with the inner side of the support frame (2).
6. A positioning device for hardware processing according to claim 1, characterized in that: A U-shaped plate (18) is fixedly installed on the top surface of the workbench (1). A second rectangular opening (17) is opened on the top surface of the U-shaped plate (18). A T-shaped block (16) is slidably arranged on the inner wall of the second rectangular opening (17). An installation plate (19) is fixedly installed on the bottom surface of the T-shaped block (16). Tools for processing hardware are fixedly installed on the bottom surface of the installation plate (19).
7. A positioning device for hardware processing according to claim 6, characterized in that: A connecting rod (15) is fixedly installed on one side of the T-block (16), and a second cylinder (14) is fixedly installed at the end of the connecting rod (15) away from the T-block (16). The lower surface of the bottom surface of the second cylinder (14) is fixedly installed with the top surface of the U-shaped plate (18).