A fixture for square tube machining process
By designing a clamping mechanism, the square tubes can be clamped and released in batches using a cylinder-driven gear and connecting arm, solving the problem that existing fixtures can only fix individual tubes and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TIANCHEN TECHNOLOGY CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-30
AI Technical Summary
Existing fixtures can only fix a single square tube and lack batch clamping capabilities, resulting in low processing efficiency.
A clamping mechanism is designed, comprising components such as a base, bracket, housing, spindle, cylinder, rack, gear, and connecting arm. The cylinder drives the rack to rotate the gear, and the connecting arm drives the clamping blocks to insert or remove from the square tube placement slot to achieve batch clamping or loosening.
This technology enables batch clamping and loosening of square tubes, improving processing efficiency.
Smart Images

Figure CN224424997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tube processing technology, specifically a fixture used in the processing of square tubes. Background Technology
[0002] As is well known, a pipeline is a device made up of pipes, pipe fittings and valves, etc., used to transport gas, liquid or fluid containing solid particles. Pipelines have a wide range of uses, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations.
[0003] Square tubes, as a type of pipe, play an important role in fields such as construction and machinery. During the processing of square tubes, operations such as cutting and painting are required, which necessitates the use of clamps. However, existing clamps can only fix individual square tubes and lack the function of clamping square tubes in batches to improve processing efficiency. Therefore, a clamp for square tube processing is proposed. Summary of the Invention
[0004] The purpose of this invention is to provide a fixture for the processing of square tubes, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for square tube processing, comprising a base and a clamping mechanism;
[0006] The top of the base is symmetrically fixedly connected to a bracket, and the top of the bracket is fixedly connected to a housing. The inner side of the housing is evenly provided with square tube placement slots.
[0007] The clamping mechanism includes a main shaft rotatably connected to the top of the base and a support base fixedly connected to the base. A cylinder is fixedly installed on the top of the support base. A rack is fixedly connected to the piston rod of the cylinder. A gear is meshed with one side of the rack. The gear is fixedly mounted on the main shaft. Connecting blocks are fixedly connected to both sides of the outer wall of the gear. A connecting arm is rotatably connected to one side of the connecting block. A plate is rotatably connected to one side of the connecting arm. Clamping blocks for insertion into the square tube placement slot are evenly fixedly connected to the outer side of the plate.
[0008] As a further preferred embodiment of this technical solution: rubber pads arranged in a hierarchical manner are uniformly fixedly connected to the outer side of the clamping block to prevent the clamping block from damaging the surface of the square tube.
[0009] As a further preferred embodiment of this technical solution: both the support base and the base are fixedly connected to the bottom of the support base and the base, which improves the stability of the base and the support base when placed and used.
[0010] As a further preferred embodiment of this technical solution: a connecting plate is slidably connected inside the support base, and one side of the connecting plate is fixedly connected to the rack, so that the rack maintains stable linear movement.
[0011] As a further preferred embodiment of this technical solution: a limiting plate is fixedly connected to the top of the housing, and a movable plate is slidably connected inside the limiting plate, so that the plate maintains stable linear movement under the action of the connecting arm.
[0012] As a further preferred embodiment of this technical solution: one end of the movable plate is fixedly connected to the plate body.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model sets a housing on the base and sets multiple square tube placement slots inside the housing. This allows the cylinder to drive the gear to rotate through the rack and pinion, and the main shaft to drive the plate to move through the connecting arm. This allows the clamping block to clamp or release the square tubes in batches under the action of the plate. Through the above settings, the working efficiency of square tube processing is effectively improved. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a fixture used in the processing of square tubes according to the present invention;
[0016] Figure 2 This is a schematic diagram of the clamping mechanism in a fixture used in the square tube processing of this utility model;
[0017] Figure 3 This utility model relates to a clamp used in the processing of square tubes. Figure 1 A magnified structural diagram of part A in the middle.
[0018] In the diagram: 1. Base; 10. Bracket; 11. Housing; 12. Square tube placement slot; 2. Clamping mechanism; 20. Main shaft; 21. Support seat; 22. Cylinder; 23. Rack; 24. Gear; 25. Connecting block; 26. Connecting arm; 27. Plate; 28. Clamping block; 29. Rubber pad; 201. Limiting plate; 202. Movable plate; 203. Connecting plate; 204. Protrusion. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] Example 1
[0021] Please see Figures 1-3 This utility model provides a technical solution: a fixture for square tube processing, including a base 1 and a clamping mechanism 2.
[0022] In this embodiment, specifically: after several square tubes are placed in their respective square tube placement slots 12, the rack 23 can be moved by activating the cylinder 22, thereby causing the rack 23 to drive the gear 24 to rotate counterclockwise. This allows the two connecting arms 26 to move the plate 27 away from the main shaft 20 under the action of the main shaft 20, so that the clamping block 28 can be inserted into the square tube placement slot 12 to clamp the square tube under the push of the plate 27. When the cylinder 22 drives the rack 23 to move in the opposite direction, thereby causing the gear 24 to rotate clockwise, the two connecting arms 26 can move the clamping block 28 out of the square tube placement slot 12 through the plate 27, thus facilitating the removal of the processed square tube.
[0023] The base 1 has a bracket 10 symmetrically fixedly connected to its top, and a housing 11 fixedly connected to its top. The inner side of the housing 11 is evenly provided with square tube placement slots 12. The clamping mechanism 2 includes a main shaft 20 rotatably connected to the top of the base 1 and a support seat 21 fixedly connected to the base 1. A cylinder 22 is fixedly installed on the top of the support seat 21. A rack 23 is fixedly connected to the piston rod of the cylinder 22. A gear 24 is meshed on one side of the rack 23. The gear 24 is fixedly mounted on the main shaft 20. Connecting blocks 25 are fixedly connected to both sides of the outer wall of the gear 24. A connecting arm 26 is rotatably connected to one side of the connecting block 25. A plate 27 is rotatably connected to one side of the connecting arm 26. Clamping blocks 28 for inserting into the square tube placement slots 12 are evenly fixedly connected to the outer side of the plate 27.
[0024] Example 2
[0025] A clamp for processing square tubes, wherein in order to prevent the clamping block 28 from damaging the surface of the square tube, the outer side of the clamping block 28 is uniformly fixedly connected with rubber pads 29 arranged in a grade.
[0026] In this embodiment, specifically: in order to improve the stability of the base 1 and the support 21 when they are placed and used, the bottom of both the support 21 and the base 1 are fixedly connected with protrusions 204.
[0027] In this embodiment, specifically: in order to keep the rack 23 moving smoothly in a straight line, a connecting plate 203 is slidably connected inside the support base 21, and one side of the connecting plate 203 is fixedly connected to the rack 23.
[0028] In this embodiment, specifically: in order to make the plate 27 move smoothly in a straight line under the action of the connecting arm 26, a limiting plate 201 is fixedly connected to the top of the housing 11, and a movable plate 202 is slidably connected inside the limiting plate 201, with one end of the movable plate 202 fixedly connected to the plate 27.
[0029] Working principle: After several square tubes are placed in their respective square tube placement slots 12, the rack 23 can be moved by starting the cylinder 22, which in turn drives the gear 24 to rotate counterclockwise. This causes the two connecting arms 26 to move the plate 27 away from the main shaft 20 under the action of the main shaft 20. The clamping block 28 can be inserted into the square tube placement slot 12 by the plate 27 to clamp the square tube. When the cylinder 22 drives the rack 23 to move in the opposite direction, which causes the gear 24 to rotate clockwise, the two connecting arms 26 can move the clamping block 28 out of the square tube placement slot 12 through the plate 27, making it easier to remove the processed square tube.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixture for use in the processing of square tubes, characterized in that: Includes a base (1) and a clamping mechanism (2); The top of the base (1) is symmetrically fixedly connected to a bracket (10), and the top of the bracket (10) is fixedly connected to a housing (11). The inner side of the housing (11) is evenly provided with square tube placement grooves (12). The clamping mechanism (2) includes a main shaft (20) rotatably connected to the top of the base (1) and a support seat (21) fixedly connected to the base (1). A cylinder (22) is fixedly installed on the top of the support seat (21). A rack (23) is fixedly connected to the piston rod of the cylinder (22). A gear (24) is meshed on one side of the rack (23). The gear (24) is fixedly mounted on the main shaft (20). Connecting blocks (25) are fixedly connected to both sides of the outer wall of the gear (24). A connecting arm (26) is rotatably connected to one side of the connecting block (25). A plate (27) is rotatably connected to one side of the connecting arm (26). Clamping blocks (28) for inserting into the square tube placement groove (12) are evenly fixedly connected to the outer side of the plate (27).
2. A fixture for square tube processing according to claim 1, characterized in that: The outer side of the clamp (28) is uniformly fixed with rubber pads (29) arranged in a hierarchical manner.
3. A fixture for square tube processing according to claim 1, characterized in that: Both the support base (21) and the base (1) have protrusions (204) fixedly connected to their bottoms.
4. A fixture for square tube processing according to claim 3, characterized in that: The support base (21) is internally slidably connected to a connecting plate (203), and one side of the connecting plate (203) is fixedly connected to a rack (23).
5. A fixture for square tube processing according to claim 1, characterized in that: A limiting plate (201) is fixedly connected to the top of the housing (11), and a movable plate (202) is slidably connected inside the limiting plate (201).
6. A fixture for square tube processing according to claim 5, characterized in that: One end of the movable plate (202) is fixedly connected to the plate body (27).