A novel clamp device
By using bevel gear outer bushing, spring upper pressure sleeve and expansion pin design in the piston car clamp, the problem of loose clamp connection is solved, achieving a more stable and reliable connection and higher cutting accuracy, extending service life and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU XINGJIAHONG MASCH TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-21
AI Technical Summary
The existing piston car fixtures have loose connections, short service life, reduced accuracy in cutting parts, which affects production efficiency and increases costs.
The design incorporates bevel gears with external bushings, springs with pressure sleeves, expansion pins, and elastic ribs, along with a machine cover for protection, ensuring a tight connection and stability between components.
It improves the service life of the fixture and the accuracy of the cut parts, reduces the defect rate, and lowers production and maintenance costs.
Smart Images

Figure CN224526540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a novel fixture device. Background Technology
[0002] The piston car clamp is a new type of clamping device designed based on the principles of safety, economy, rationality, and reliability. The product features reliable part connections, high precision in cutting components, convenient assembly, strong series compatibility and practicality, novel structure, and high protection level.
[0003] With the widespread use of fixtures in machinery and other fields, the requirements for fixture devices are becoming increasingly stringent. Existing piston car fixtures suffer from loose connections, short service life, and decreased accuracy in cutting parts during use, significantly impacting production efficiency and increasing production and maintenance costs. Summary of the Invention
[0004] The purpose of this invention is to solve the problem of unreliable and loose connections between components in existing piston car clamps. This invention provides a new type of clamping device with tight and reliable connections between components. This not only increases the service life of the clamp, but also ensures greater accuracy in cutting parts and reduces the defect rate.
[0005] To achieve the aforementioned utility model objective, the technical solution adopted by this utility model includes: a clamping body, a screw, a bevel gear a, a bushing a, a nut, a bevel gear b, a key, a bushing b, a spring a, a spacer, an expansion pin a, an elastic rib, a threaded sleeve a, a threaded sleeve b, a screw, an expansion pin b, a spring b pressure sleeve, a positioning pin, a machine cover, and a groove. The screw is fixed to the clamping body. The bushing a is outside the bevel gear a. The nut is connected to the screw. The bevel gear b is connected to the bushing b. The key is installed on the screw. Spring a is to the right of bushing b. A spacer is to the right of spring a. Spring a is outside the screw. The expansion pins a and b fix the screw. The threaded sleeves a and b are outside the screw. Spring b is located outside the expansion pin b. A pressure sleeve is below spring b. The positioning pin is on the clamping body. The machine cover can cover the clamping body. The groove is located on the screw.
[0006] Furthermore, the number of positioning pins is two.
[0007] Furthermore, the clamp has a length of 304cm and a diameter of 130cm.
[0008] Furthermore, the bushings a and b are made of tin bronze.
[0009] Furthermore, the screw has a cross-section of 13cm in diameter and a 2cm wide groove.
[0010] Compared with existing technologies, the advantages of this utility model include: by adding a bushing to the outside of the bevel gear and a pressure sleeve on the spring, the connection between the parts is made tighter and more reliable. This increases the friction between the parts, making it less prone to loosening and thus ensuring the accuracy of cutting. The use of elastic ribs on the expansion pins further stabilizes the device, and the machine cover protects the device from debris and other contaminants, thus extending its service life. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a novel clamping device according to the present invention; Figure 2 This is a schematic diagram of the screw structure in a novel clamping device according to the present invention; Figure 3 This is a cross-sectional view of the screw in a novel clamping device according to the present invention; In the diagram: 1. Clamp body, 2. Screw, 3. Bevel gear a, 4. Bushing a, 5. Nut, 6. Bevel gear b, 7. Key, 8. Bushing b, 9. Spring a, 10. Spacer, 11. Expansion pin a, 12. Elastic rib, 13. Screw sleeve a, 14. Screw sleeve b, 15. Screw, 16. Expansion pin b, 17. Spring b, 18. Pressure sleeve, 19. Positioning pin, and 20. Machine cover. Detailed Implementation
[0012] In view of the shortcomings of the prior art, this invention, through long-term research and extensive practice, has yielded the technical solution of this utility model. The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments.
[0013] Please see Figure 1 , Figure 2 , Figure 3 , Figure 1 This is a schematic diagram of a novel clamping device according to the present invention; Figure 2 This is a schematic diagram of the screw structure in a novel clamping device according to the present invention; Figure 3This is a cross-sectional view of the screw in a novel clamping device according to the present invention. The novel clamping device is characterized by comprising a clamping body 1, a screw 2, a bevel gear a3, a bushing a4, a nut 5, a bevel gear b6, a key 7, a bushing b8, a spring a9, a spacer 10, an expansion pin a11, an elastic rib 12, a screw sleeve a13, a screw sleeve b14, a screw 15, an expansion pin b16, a spring b17, a pressure sleeve 18, a positioning pin 19, a cover 20, and a groove 21. The screw 2 is fixed to the clamping body 1. The bevel gear a3 is surrounded by a bushing a4, ensuring a tighter and more reliable connection between the components without gaps. The nut 5 is connected to the screw 15, and the bevel gear b6 is connected to the bushing b8. Increased friction between parts ensures tighter connection. Key 7 is mounted on screw 15. Spring a9 is located to the right of bushing b8, and spacer is located to the right of spring a9. Spring a9 is outside screw 15, ensuring a tight connection between parts. Expansion pins a11 and b16 secure screw 15 for accurate positioning and precise operation. Screw sleeves a13 and b14 protect screw 15 and increase its service life. Spring b17 is located outside expansion pin b16. Pressure sleeve 18 is located below spring b17 to prevent direct contact and wear between spring and screw. Positioning pin 19 is on clamp body 1. Machine cover 20 can cover clamp body 1 to protect the entire clamp body. Groove 21 is located on screw 15.
[0014] Preferably, the number of the positioning pins 19 is two.
[0015] Preferably, the clamp body 1 has a length of 304cm and a diameter of 130cm.
[0016] Preferably, the bushings a4 and b8 are made of tin bronze.
[0017] Preferably, the screw 15 has a cross-section of 13cm in diameter and a 2cm wide groove.
[0018] In practical use, this invention utilizes a bushing on the outside of the bevel gear and a pressure sleeve on the spring to make the connection between the components tighter and more reliable. This increases friction between the components, reducing the likelihood of loosening and ensuring cutting accuracy. The use of locating pins provides better fixing, and the expansion pins with elastic ribs enhance stability. Furthermore, the machine cover prevents debris from entering the device, providing better protection and extending its service life.
[0019] This utility model provides a novel clamping device. It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, intended to enable those skilled in the art to understand its contents and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. Any simple modifications and substitutions made using the content of this utility model are included within the scope of protection of this utility model.
Claims
1. A novel clamping device, characterized in that: The fixture includes a clamping body (1), a screw (2), a bevel gear a (3), a bushing a (4), a nut (5), a bevel gear b (6), a key (7), a bushing b (8), a spring a (9), a spacer (10), an expansion pin a (11), an elastic rib (12), a threaded sleeve a (13), a threaded sleeve b (14), a screw (15), an expansion pin b (16), a spring b (17), a pressure sleeve (18), a positioning pin (19), a cover (20), and a groove (21). The screw (2) is fixed to the clamping body (1). The bevel gear a (3) is surrounded by a bushing a (4). The nut (5) is connected to the screw (15). The bevel gear b (6) is connected to the bushing. b (8) are connected, the key (7) is installed on the screw (15), the right side of the bushing b (8) is the spring a (9), the right side of the spring a (9) is the spacer, the spring a (9) is outside the screw (15), the expansion pin a (11) and expansion pin b (16) fix the screw (15), the screw sleeve a (13) and screw sleeve b (14) are outside the screw (15), the expansion pin b (16) is provided with spring b (17) on the outside, the spring b (17) is below the pressure sleeve (18), the positioning pin (19) is on the clamp body (1), the machine cover (20) can cover the clamp body (1), and the groove (21) is provided on the screw (15).
2. The novel clamping device according to claim 1, characterized in that: The number of the positioning pins (19) is two.
3. The novel clamping device according to claim 1, characterized in that: The clamp body (1) is 304cm long and 130cm in diameter.
4. The novel clamping device according to claim 1, characterized in that: The bushings a (4) and b (8) are made of tin bronze.
5. A novel clamping device according to claim 1, characterized in that: The screw (15) has a cross-section of 13cm circular and 2cm wide groove.