Clamp suitable for steel structure machining

By designing a fixture suitable for steel structure processing and utilizing a positioning mechanism driven by transmission gears and cylinders, stable clamping and positioning of steel structures of different sizes is achieved, solving the problem of insufficient applicability of existing fixtures and improving processing accuracy and efficiency.

CN223917725UActive Publication Date: 2026-02-17SHANDONG RUICHI STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202520414109.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-17
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing steel structure fixtures are difficult to adapt to steel structures of different sizes, resulting in shaking and displacement during processing, which affects accuracy and increases production costs.

Method used

A clamping fixture including a clamping mechanism and a support positioning mechanism was designed. The clamping plate spacing is adjusted by transmission gears and rack plates, and the positioning and feeding are achieved by combining the cylinder to drive the top block. It supports the clamping and positioning of steel structures of different sizes.

Benefits of technology

It improves the versatility and machining accuracy of the fixture, reduces human error, and enhances machining efficiency and finished product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel structure machining, and discloses a clamp suitable for steel structure machining, which comprises a base and a disc, the inside of the disc is fixedly connected with a clamping mechanism, and the top end of the base is fixedly connected with a supporting and positioning mechanism; the clamping mechanism comprises a fixed inner ring, the front side of the fixed inner ring is fixedly connected to the inner wall of the front side of the disc, a plurality of connecting frames are fixedly connected to the rear side of the fixed inner ring, fixed outer rings are fixedly connected to the far sides of the connecting frames, and transmission gears are rotationally connected to the front sides of the connecting frames; the front side of one transmission gear is fixedly connected with a driving assembly used for providing power. According to the utility model, the clamping plate is detachably connected with the mounting plate through the bolt, and the clamp can be replaced according to different steel structure products, so that the clamp can effectively clamp and process the steel structure products with different sizes, and the universality of the clamp is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a fixture suitable for steel structure processing. Background Technology

[0002] Steel structures are a type of building structure primarily composed of steel materials, such as steel beams, columns, and trusses made of shaped steel and steel plates. These components are connected by welding, bolts, or rivets to form various structural forms, such as portal frames, frame structures, and space frame structures. Steel structures have advantages such as high strength, light weight, good overall rigidity, fast construction speed, high degree of industrialization, and good sealing performance, and are widely used in large factories, stadiums, high-rise buildings, bridges, and other fields. However, steel structures also have disadvantages such as being heat-resistant but not fire-resistant and having poor corrosion resistance, requiring regular maintenance and fireproofing and rustproofing treatments.

[0003] General steel structure processing fixtures refer to devices used to fix, position, and clamp workpieces during steel structure processing. These fixtures are typically used to ensure the stability of the steel structure during processing to facilitate operations such as cutting, drilling, and welding.

[0004] In existing technologies, some steel structure fixtures are often fixed in size or have a very limited adjustment range. Some simple fixtures with fixed jaw spacing are only suitable for steel structure products of specific sizes. When faced with steel structures of different sizes, these fixtures are prone to failure to hold the steel structure effectively. On the one hand, this causes the steel structure to wobble and shift during processing, affecting processing accuracy. On the other hand, it requires a lot of time and manpower to modify or replace the fixtures, which seriously affects processing efficiency and increases production costs. Therefore, a fixture suitable for steel structure processing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fixture suitable for steel structure processing, aiming to improve the problem that some existing steel structure fixtures are difficult to clamp steel structures of different types and sizes, thus affecting processing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixture suitable for steel structure processing includes a base and a disc, wherein a clamping mechanism is fixedly connected inside the disc, and a support and positioning mechanism is fixedly connected to the top of the base.

[0008] The clamping mechanism includes a fixed inner ring, the front side of which is fixedly connected to the front inner wall of the disc, and a plurality of connecting brackets fixedly connected to the rear side of the fixed inner ring. A fixed outer ring is fixedly connected to the far side of the plurality of connecting brackets. A transmission gear is rotatably connected to the front side of the connecting bracket. A drive component for providing power is fixedly connected to the front side of one of the transmission gears. An internal gear is rotatably connected to the inner wall of the fixed outer ring. A rack plate is slidably connected to each of the four inner corners of the fixed outer ring. A disassembly and assembly component for replacing the clamping jaws can be detachably connected to the near side of the plurality of rack plates.

[0009] As a further description of the above technical solution:

[0010] The support and positioning mechanism includes a fixing block, the bottom end of which is fixedly connected to the top end of the base. A cylinder is fixedly connected inside the fixing block, a top block is fixedly connected to the top end of the cylinder, and a fixing frame is fixedly connected to the top end of the top block. Two L-shaped frames are fixedly connected to the front and rear sides of the fixing frame, and an arc plate is fixedly connected to the top end of the two L-shaped frames.

[0011] As a further description of the above technical solution:

[0012] A support base is fixedly connected to the top of the base, a fixing tube is fixedly connected to the inner wall of the support base, and the rear end of the disc is fixedly connected to the front end of the fixing tube.

[0013] As a further description of the above technical solution:

[0014] The outer surfaces of the plurality of transmission gears are meshed with the outer surfaces of the internal gears, and the outer surfaces of the transmission gears are meshed with the outer surfaces of the rack plate;

[0015] As a further description of the above technical solution:

[0016] The drive assembly includes a connecting rod, the rear end of which is fixedly connected to the front end of one of the transmission gears, and a turntable is fixedly connected to the front end of the connecting rod. A handle is provided on the outside of the turntable.

[0017] As a further description of the above technical solution:

[0018] The assembly and disassembly assembly includes multiple mounting plates. Two adjacent sides of the mounting plates are in contact with the front and rear sides of the rack plate. Bolts are rotatably connected inside the mounting plates. Four clamping plates are fixedly connected to adjacent sides of the multiple mounting plates. Anti-slip buffer layers are fixedly connected to adjacent sides of the multiple clamping plates.

[0019] As a further description of the above technical solution:

[0020] The two bolts are threaded to the outside of the rack plate and the inside of the rack plate, and the far side of the plurality of clamping plates is in contact with the near side of the plurality of rack plates;

[0021] As a further description of the above technical solution:

[0022] The outer wall of the top block is slidably connected to the inner wall of the fixed block, and the outer wall of the fixing frame is slidably connected to the inner wall of the fixed block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the rotating turntable drives the connecting rod to rotate, which in turn drives the transmission gear to rotate, and finally drives the rack plate to move to the middle or the outside, thereby adjusting the distance between the clamping plates. At the same time, the clamping plates are detachably connected by bolts and mounting plates, and the clamps can be replaced according to different steel structure products, so that the clamps can effectively clamp and process steel structure products of different sizes, greatly improving the versatility of the clamps.

[0025] 2. In this utility model, the cylinder generates power to push the top block, which in turn moves the fixed frame up and down. With the help of an L-shaped frame, the arc-shaped plate moves up and down accordingly. The steel structure product to be processed is placed on the arc-shaped plate, achieving positioning and feeding of the steel structure product, avoiding errors that may occur during manual operation, thereby improving the quality of the finished product. Attached Figure Description

[0026] Figure 1 This is a perspective view of a fixture suitable for steel structure processing proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the support base of a fixture suitable for steel structure processing proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a disc for a fixture suitable for steel structure processing proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the fixing inner ring of a clamp suitable for steel structure processing proposed in this utility model;

[0030] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0032] Legend:

[0033] 1. Base; 2. Support base; 3. Fixing tube; 4. Disc; 5. Fixing inner ring; 6. Connecting frame; 7. Fixing outer ring; 8. Transmission gear; 9. Internal gear; 10. Rack plate; 11. Connecting rod; 12. Turntable; 13. Mounting plate; 14. Bolt; 15. Clamping plate; 16. Anti-slip buffer layer; 17. Fixing block; 18. Cylinder; 19. Top block; 20. Fixing frame; 21. L-shaped frame; 22. Arc plate. Detailed Implementation

[0034] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a fixture suitable for steel structure processing, comprising a base 1 and a disc 4. A clamping mechanism is fixedly connected inside the disc 4, and a support and positioning mechanism is fixedly connected to the top of the base 1. A support seat 2 is fixedly connected to the top of the base 1, and a fixing tube 3 is fixedly connected to the inner wall of the support seat 2. The rear end of the disc 4 is fixedly connected to the front end of the fixing tube 3. The base 1 is the foundation of the entire device, providing a stable support platform for the support seat 2, fixing block 17, and other components, ensuring the stability of the entire device during operation and preventing the device from shaking or tipping due to the weight of the steel structure product or the forces exerted during processing. The support seat 2 stably supports the fixing tube 3. The disc 4 provides a relatively enclosed space for the operation of the clamping mechanism, protecting the internal transmission structure from external interference.

[0036] The clamping mechanism includes a fixed inner ring 5, the front side of which is fixedly connected to the front inner wall of the disk 4, and multiple connecting frames 6 are fixedly connected to the rear side of the fixed inner ring 5. The fixed inner ring 5 plays a core positioning and connecting role in the clamping mechanism, determining the relative position of the entire clamping mechanism inside the disk 4 and providing a stable attachment point for the connecting frames 6. A fixed outer ring 7 is fixedly connected to the opposite side of the multiple connecting frames 6. The connecting frames 6 connect the fixed inner ring 5 and the fixed outer ring 7, acting as a bridge between the two. A transmission gear 8 is rotatably connected to the front side of the connecting frame 6. A drive component for providing power is fixedly connected to the front side of one of the transmission gears 8. An internal gear 9 is rotatably connected to the inner wall of the fixed outer ring 7. The outer sides of multiple transmission gears 8 are meshed with the outer sides of the internal gears 9. A rack plate 10 is slidably connected to the four corners inside the fixed outer ring 7. The outer sides of the transmission gears 8 are meshed with the outer sides of the rack plate 10. The fixed outer ring 7 provides a space frame for the installation and movement of the internal gears 9 and the rack plate 10, ensuring that the rotation of the internal gear 9 can accurately drive the transmission gear 8. The transmission gear 8 is a key component for power transmission. The transmission gear 8 connected to the connecting rod 11 receives power from the rotation of the turntable 12. Its meshing connection with the internal gear 9 realizes the first conversion and transmission of power. The meshing relationship with the rack plate 10 converts the rotation into the linear motion of the rack plate 10. A disassembly and assembly component for replacing the gripper can be detachably connected to the adjacent sides of multiple rack plates 10.

[0037] Reference Figure 3 and Figure 5 The drive assembly includes a connecting rod 11, the rear end of which is fixedly connected to the front end of one of the transmission gears 8. A turntable 12 is fixedly connected to the front end of the connecting rod 11. A handle is provided on the outside of the turntable 12. The connecting rod 11 accurately transmits the rotational power of the turntable 12 to the transmission gear 8, ensuring the continuity and effectiveness of power transmission. By rotating the handle, the rotation of the turntable 12 is driven and transmitted to the transmission gear 8 via the connecting rod 11. It is the starting input component of the power for the entire clamping mechanism, allowing the operator to control the magnitude and direction of the power input according to actual needs.

[0038] Reference Figure 4 and Figure 6The assembly includes multiple mounting plates 13. The adjacent sides of two mounting plates 13 contact the front and rear sides of a rack plate 10. Bolts 14 are rotatably connected inside the mounting plates 13, and the exterior of two bolts 14 are threadedly connected to the interior of the rack plate 10. Four clamping plates 15 are fixedly connected to the adjacent sides of the mounting plates 13. The distant sides of the clamping plates 15 contact the adjacent sides of the rack plates 10. The mounting plates 13 and rack plates 10 are connected by bolts 14, providing a base for the clamping plates 15 and facilitating their disassembly and replacement. This allows the clamp to be quickly changed to accommodate different steel structure products, improving the applicability of the device. Anti-slip buffer layers 16 are fixedly connected to the adjacent sides of each clamping plate 15. The distance between the clamping plates 15 is adjusted by moving the rack plate 10, thus achieving clamping of steel structure products of different sizes. The anti-slip buffer layers 16 increase the friction between the clamping plates 15 and the product, while preventing damage to the product.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The support and positioning mechanism includes a fixed block 17, the bottom of which is fixedly connected to the top of the base 1. A cylinder 18 is fixedly connected inside the fixed block 17, providing installation space for the cylinder 18 and forming the basic structure of the support and positioning mechanism. A top block 19 is fixedly connected to the top of the cylinder 18, and the outer wall of the top block 19 is slidably connected to the inner wall of the fixed block 17. The cylinder 18 acts as a power source, generating power to move the top block 19 up and down, thus providing power support for the positioning and feeding of the steel structure product, ensuring that the product can accurately reach the processing position. A fixed frame 20 is fixedly connected to the top of the top block 19, and the outer wall of the fixed frame 20 is slidably connected to the inner wall of the fixed block 17. Two L-shaped frames 21 are fixedly connected to the front and rear sides of the fixed frame 20, respectively. An arc-shaped plate 22 is fixedly connected to the top of 1. The top block 19 slides up and down on the inner wall of the fixed block 17 under the push of the cylinder 18, transmitting the power of the cylinder 18 to the fixed frame 20, realizing the up and down movement of the fixed frame 20, which in turn drives the steel structure product on the arc-shaped plate 22 to move up and down. The arc-shaped plate 22 is connected to the fixed frame 20 by the L-shaped frame 21 and is a platform for placing steel structure products. It moves with the up and down movement of the fixed frame 20, which facilitates the positioning and feeding of steel structure products and avoids the impact of errors caused by manual conveying on the quality of finished products.

[0040] Working principle: By rotating the handle on the turntable 12, the turntable 12 and the connecting rod 11 are rotated, which in turn drives the transmission gear 8 to rotate. Since the transmission gear 8 and the internal gear 9 are meshed, the rotation of the transmission gear 8 will drive the internal gear 9 to rotate, and the rotating internal gear 9 will drive the other three transmission gears 8 to rotate. By utilizing the meshing relationship between the transmission gear 8 and the rack plate 10, the rotation of the transmission gear 8 will drive the four rack plates 10 to move towards the middle or outward, thereby achieving the adjustment of the spacing between the four clamping plates 15. It can clamp and process steel structure products of different sizes. At the same time, the clamping plates 15 can be disassembled by using the bolts 14 and the mounting plate 13, and the corresponding clamps can be replaced according to different steel structure products, thereby increasing the applicability of the device.

[0041] The steel structure product to be processed is placed on the arc plate 22. By activating the cylinder 18 inside the fixing block 17, power is generated to drive the top block 19 to move up and down along the inner wall of the fixing block 17. The movement of the top block 19 drives the fixing frame 20 to move up and down. With the L-shaped frame 21 connecting the fixing frame 20 and the arc plate 22, the up and down movement of the fixing frame 20 drives the steel structure product on the arc plate 22 to move up and down. This facilitates the positioning and feeding of the steel structure product and avoids the impact of errors caused by manual conveying on the quality of the finished product.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture suitable for steel structure processing, comprising a base (1) and a disc (4), characterized in that: The disc (4) is fixedly connected to a clamping mechanism inside, and the top of the base (1) is fixedly connected to a support and positioning mechanism. The clamping mechanism includes a fixed inner ring (5), the front side of which is fixedly connected to the front inner wall of the disc (4), and a plurality of connecting frames (6) are fixedly connected to the rear side of the fixed inner ring (5). A fixed outer ring (7) is fixedly connected to the far side of the plurality of connecting frames (6). A transmission gear (8) is rotatably connected to the front side of the connecting frame (6). A drive component for providing power is fixedly connected to the front side of one of the transmission gears (8). An internal gear (9) is rotatably connected to the inner wall of the fixed outer ring (7). A rack plate (10) is slidably connected to the four corners inside the fixed outer ring (7). A disassembly and assembly component for replacing the clamping jaws can be detachably connected to the near side of the plurality of rack plates (10).

2. The fixture for processing of steel structures according to claim 1, characterized in that: The support and positioning mechanism includes a fixed block (17), the bottom end of which is fixedly connected to the top end of the base (1). A cylinder (18) is fixedly connected inside the fixed block (17), a top block (19) is fixedly connected to the top end of the cylinder (18), and a fixed frame (20) is fixedly connected to the top end of the top block (19). Two L-shaped frames (21) are fixedly connected to the front and rear sides of the fixed frame (20), and an arc plate (22) is fixedly connected to the top end of the two L-shaped frames (21).

3. The fixture for processing of steel structures according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a support seat (2), and the inner wall of the support seat (2) is fixedly connected to a fixing tube (3). The rear end of the disc (4) is fixedly connected to the front end of the fixing tube (3).

4. The fixture for processing of steel structures according to claim 1, characterized in that: The exterior of the plurality of transmission gears (8) is meshed with the exterior of the internal gear (9), and the exterior of the transmission gears (8) is meshed with the exterior of the rack plate (10).

5. The fixture for processing of steel structures according to claim 1, characterized in that: The drive assembly includes a connecting rod (11), the rear end of which is fixedly connected to the front end of one of the transmission gears (8), and a turntable (12) is fixedly connected to the front end of the connecting rod (11), with a handle provided on the outside of the turntable (12).

6. The fixture for processing of steel structures according to claim 1, characterized in that: The assembly includes multiple mounting plates (13), with one side of two mounting plates (13) in contact with the front and rear sides of the rack plate (10). Bolts (14) are rotatably connected inside the mounting plates (13). Four clamping plates (15) are fixedly connected to one side of multiple mounting plates (13), and anti-slip buffer layers (16) are fixedly connected to one side of multiple clamping plates (15).

7. A fixture suitable for steel structure processing according to claim 6, characterized in that: The two bolts (14) are threaded to the outside of the rack plate (10), and the far side of the plurality of clamps (15) is in contact with the near side of the plurality of rack plates (10).

8. A fixture suitable for steel structure processing according to claim 2, characterized in that: The outer wall of the top block (19) is slidably connected to the inner wall of the fixed block (17), and the outer wall of the fixing frame (20) is slidably connected to the inner wall of the fixed block (17).