Fixing clamp for square tube cutting

Abstract

The utility model discloses a stationary fixture for square tube cutting, which relates to the technical field of stationary fixtures and comprises a base plate, a base is fixedly connected to the middle of the upper surface of the base plate, supporting rods are fixedly connected to the left side and the right side of the upper surface of the base, and an arc-shaped supporting plate is fixedly connected to the tops of the four supporting rods. A sleeve is fixedly connected to the upper end of the arc-shaped supporting plate, limiting rings are fixedly connected to the outer surfaces of the front side and the rear side of the sleeve correspondingly, rotating grooves are formed in the middles of the two limiting rings correspondingly, rotating discs are rotationally connected to the interiors of the two rotating grooves correspondingly, and a connecting rod is fixedly connected between the two rotating discs; a gear ring is fixedly connected to the outer side of the rotating disc on the front side, and two first clamping assemblies and two second clamping assemblies are arranged on the sides, away from the sleeve, of the two rotating discs correspondingly. The clamping device has the advantages that the clamping contact area is wider, the surface of the square tube is protected from being damaged through uniform force distribution, and the possibility that point pressure is directly applied to the tube wall is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing fixtures, in particular to a fixing fixture for cutting square tubes. Background Art

[0002] Square tube is a name for rectangular tubing, meaning a steel tube with equal sides. It's made by rolling steel strip through a process. It's a lightweight, thin-walled, hollow square steel tube, also known as cold-bent steel profile. It's made from Q235 hot-rolled or cold-rolled strip or coil, cold-bent, and then high-frequency welded to create a square cross-section. Hot-rolled, extra-thick-walled square tubes, with increased wall thickness, have corner dimensions and edge straightness that match or even exceed those of resistance-welded, cold-formed square tubes. They offer excellent overall mechanical properties, weldability, cold and hot workability, corrosion resistance, and low-temperature toughness.

[0003] When cutting a square tube, the square tube needs to be fixed. A common fixing method is to tighten it with bolts on both sides of the square tube. Since the contact area between the bolts and the square tube is small, the square tube is subjected to greater pressure at the bolt tightening position. For thin-walled square tubes or other thin-walled pipes, using bolts to tighten may cause deformation or cracking of the tube wall. In view of the above problems, a fixing fixture for square tube cutting is proposed to solve the problem. Utility Model Content

[0004] In order to solve the above technical problems, a fixing clamp for square tube cutting is provided, which solves the above-mentioned problem that the square tube needs to be fixed when cutting the square tube. The common fixing method is to tighten the square tube with bolts on both sides. Since the contact area between the bolts and the square tube is small, the square tube is subjected to greater pressure at the bolt tightening position. For thin-walled square tubes or other thin-walled pipes, using bolts to tighten may cause deformation or cracking of the tube wall.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a fixing fixture for square tube cutting, comprising a base plate, a base fixedly connected to the middle portion of the upper surface of the base plate, support rods fixedly connected to the left and right sides of the upper surface of the base, an arc-shaped support plate fixedly connected to the top of the four support rods, a sleeve fixedly connected to the upper end of the arc-shaped support plate, a limiting ring fixedly connected to the front and rear outer surfaces of the sleeve, a rotating groove is provided in the middle of the two limiting rings, a rotating disk is rotatably connected to the inside of the two groups of rotating grooves, a connecting rod is fixedly connected between the two rotating disks, a gear ring is fixedly connected to the outer side of the front rotating disk, and two groups of first clamping assemblies and two groups of second clamping assemblies are provided on the side of the two rotating disks away from the sleeve.

[0006] Preferably, a servo motor is fixedly mounted on the middle portion of the upper surface of the base, an output end of the servo motor is fixedly connected to a driving gear, and the driving gear is meshed with a gear ring.

[0007] Preferably, the two groups of first clamping assemblies include a first support and a first rotating sleeve, the first support is fixedly connected to the outer end face of the rotating disk, the first rotating sleeve is rotatably connected to the end face of the sleeve through a rotating shaft, and the two groups of the first clamping assemblies are centrally symmetrically distributed about the axis of the sleeve.

[0008] Preferably, a first clamping rod is fixedly connected to the inner sides of the two first supports, and the ends of the first clamping rods pass through the first rotating sleeve and are slidably connected inside the first rotating sleeve.

[0009] Preferably, the two groups of second clamping assemblies include a second support and a second rotating sleeve, the second support is fixedly connected to the outer end face of the rotating disk, the second rotating sleeve is rotatably connected to the end face of the sleeve through a rotating shaft, and the two groups of the second clamping assemblies are centrally symmetrically distributed about the axis of the sleeve.

[0010] Preferably, the inner sides of the two second supports are fixedly connected with a second clamping rod, and the ends of the second clamping rods pass through the second rotating sleeve and are slidably connected inside the second rotating sleeve.

[0011] Preferably, anti-skid feet are fixedly installed at the four corners of the bottom of the base plate, and a rubber anti-skid ring is provided at the bottom of the anti-skid feet.

[0012] Compared with the prior art, the advantages of the present invention are: the present invention provides a first clamping assembly and a second clamping assembly, and with the cooperation of a servo motor, a driving gear, a gear ring and a rotating disk, the four sides of the square tube are synchronously clamped, thereby avoiding the large pressure on the local area of ​​the square tube caused by the bolt tightening method. The clamping contact area is wider, and the surface of the square tube is protected from damage through uniform force distribution, reducing the possibility of directly applying point pressure on the tube wall, which helps to maintain the appearance and surface quality of the pipeline. This can reduce the risk of deformation or damage of the square tube during the fixing process. The clamping method is usually easier than bolts, which can save installation time and labor costs, and can achieve synchronous clamping to achieve fast clamping and release, which can save operation time and improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the utility model from another perspective;

[0015] Figure 3 This is a schematic diagram of the sleeve structure in the present utility model;

[0016] Figure 4 This is a schematic diagram of the connection between the first clamping assembly and the second clamping assembly in the present invention.

[0017] The numbers in the figure are:

[0018] 1. Base plate; 2. Base; 3. Support rod; 4. Arc-shaped support plate; 5. Sleeve; 6. Limiting ring; 7. Rotating groove; 8. Rotating disk; 9. First clamping assembly; 901. First support; 902. First rotating sleeve; 903. First clamping rod; 10. Second clamping assembly; 1001. Second support; 1002. Second rotating sleeve; 1003. Second clamping rod; 11. Connecting rod; 12. Servo motor; 13. Drive gear; 14. Anti-slip foot; 15. Gear ring. DETAILED DESCRIPTION

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0020] Reference Figure 1-4 As shown, a fixing fixture for cutting square tubes includes a base plate 1, a base 2 fixedly connected to the middle of the upper surface of the base plate 1, support rods 3 fixedly connected to the left and right sides of the upper surface of the base 2, an arc-shaped support plate 4 fixedly connected to the top of the four support rods 3, a sleeve 5 fixedly connected to the upper end of the arc-shaped support plate 4, and a limit ring 6 fixedly connected to the front and rear outer surfaces of the sleeve 5. The middle of each limit ring 6 is provided with a rotation groove 7, and the interior of each set of rotation grooves 7 is rotatably connected to a rotating disk 8. A connecting rod 11 is fixedly connected between the two rotating disks 8, and a gear ring 15 is fixedly connected to the outer side of the front rotating disk 8. Two sets of first clamping assemblies 9 and two sets of second clamping assemblies 10 are provided on the side of each rotating disk 8 away from the sleeve 5. The sleeve 5 is used to support the rotating disk 8 and ensure the stability of the rotating disk 8 during rotation. The limit ring 6 limits the rotation range of the rotating disk 8 by providing the rotation groove 7, preventing deviation from causing damage to the fixture or loosening the square tube clamp.

[0021] Specifically, a servo motor 12 is fixedly installed in the middle of the upper surface of the base 2, and the output end of the servo motor 12 is fixedly connected to a driving gear 13, which is engaged with a gear ring 15. The servo motor 12 provides stable power output. Through the engagement of the driving gear 13 and the gear ring 15, the rotation angle and speed of the rotating disk 8 can be accurately controlled, thereby achieving precise clamping of the square tube.

[0022] Specifically, the two groups of first clamping assemblies 9 include a first support 901 and a first rotating sleeve 902. The first support 901 is fixedly connected to the outer end face of the rotating disk 8. The first rotating sleeve 902 is rotatably connected to the end face of the sleeve 5 through a rotating shaft. The two groups of first clamping assemblies 9 are centrally symmetrically distributed about the axis of the sleeve 5. The two groups of first clamping assemblies 9 and the two groups of second clamping assemblies 10 are centrally symmetrically distributed about the axis of the sleeve 5. This design can ensure that the square tube is subjected to uniform force during the clamping process, reducing deformation of the square tube or cutting deviation caused by uneven force.

[0023] Specifically, the inner sides of the two first supports 901 are fixedly connected with first clamping rods 903 , and the ends of the first clamping rods 903 pass through the first rotating sleeve 902 and are slidably connected inside the first rotating sleeve 902 .

[0024] Specifically, the two groups of second clamping assemblies 10 include a second support 1001 and a second rotating sleeve 1002. The second support 1001 is fixedly connected to the outer end face of the rotating disk 8. The second rotating sleeve 1002 is rotatably connected to the end face of the sleeve 5 through a rotating shaft, and the two groups of second clamping assemblies 10 are centrally symmetrically distributed about the axis of the sleeve 5.

[0025] Specifically, the inner sides of the two second supports 1001 are fixedly connected with second clamping rods 1003 , and the ends of the second clamping rods 1003 pass through the second rotating sleeve 1002 and are slidably connected inside the second rotating sleeve 1002 .

[0026] Preferably, anti-slip feet 14 are fixedly installed at the four corners of the bottom of the substrate 1, and rubber anti-slip rings are provided at the bottom of the anti-slip feet 14. The anti-slip feet 14 can ensure that the clamp is stably placed on the workbench during operation, preventing cutting errors or safety accidents caused by the movement of the clamp. The rubber anti-slip ring at the bottom increases the friction between the clamp and the workbench, further improving the stability of the clamp.

[0027] Working principle: When in use, first insert the square tube into the gap formed between the first clamping component 9 and the second clamping component 10, and then the output end of the servo motor 12 drives the driving gear 13 to rotate, and the driving gear 13 drives the rotating disk 8 to rotate through the meshing relationship with the gear ring 15. When the rotating disk 8 rotates, the first support 901 will approach the first rotating sleeve 902 of the other group, and the second support 1001 will approach the second rotating sleeve 1002 of the other group. The first support 901 will pull the first clamping rod 903 back, and the second support 1001 will pull the second clamping rod 1003 back, thereby shrinking the gap formed between the first clamping component 9 and the second clamping component 10 to clamp the four sides of the square tube. Due to the presence of the connecting rod 11, the two rotating disks 8 will be driven to rotate synchronously, and the square tube can be clamped at two points, which further improves the stability of the clamping.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for cutting square tubes, characterized by: The invention comprises a base plate (1), wherein the middle of the upper surface of the base plate (1) is fixedly connected to a base (2), the left and right sides of the upper surface of the base (2) are fixedly connected to support rods (3), the tops of the four support rods (3) are fixedly connected to arc-shaped support plates (4), the upper ends of the arc-shaped support plates (4) are fixedly connected to sleeves (5), the front and rear outer surfaces of the sleeves (5) are fixedly connected to limiting rings (6), the middle parts of the two limiting rings (6) are provided with rotation grooves (7), the interiors of the two groups of the rotation grooves (7) are rotatably connected to rotating disks (8), a connecting rod (11) is fixedly connected between the two rotating disks (8), the outer side of the front rotating disk (8) is fixedly connected to a gear ring (15), and the sides of the two rotating disks (8) away from the sleeves (5) are provided with two groups of first clamping assemblies (9) and two groups of second clamping assemblies (10).

2. A fixing fixture for cutting square tubes according to claim 1, characterized in that: A servo motor (12) is fixedly mounted on the middle portion of the upper surface of the base (2), and an output end of the servo motor (12) is fixedly connected to a driving gear (13), which is meshed with a gear ring (15).

3. The fixing fixture for cutting square tubes according to claim 1, characterized in that: The two groups of first clamping assemblies (9) include a first support (901) and a first rotating sleeve (902), wherein the first support (901) is fixedly connected to the outer end surface of the rotating disk (8), and the first rotating sleeve (902) is rotatably connected to the end surface of the sleeve (5) via a rotating shaft, and the two groups of the first clamping assemblies (9) are centrally symmetrically distributed about the axis of the sleeve (5).

4. The fixing fixture for cutting square tubes according to claim 3, characterized in that: The inner sides of the two first supports (901) are fixedly connected with a first clamping rod (903), and the ends of the first clamping rods (903) pass through the first rotating sleeve (902) and are slidably connected inside the first rotating sleeve (902).

5. The fixing fixture for cutting square tubes according to claim 1, characterized in that: The two groups of second clamping assemblies (10) include a second support (1001) and a second rotating sleeve (1002), wherein the second support (1001) is fixedly connected to the outer end surface of the rotating disk (8), and the second rotating sleeve (1002) is rotatably connected to the end surface of the sleeve (5) via a rotating shaft, and the two groups of the second clamping assemblies (10) are centrally symmetrically distributed about the axis of the sleeve (5).

6. The fixing fixture for cutting square tubes according to claim 5, characterized in that: The inner sides of the two second supports (1001) are fixedly connected with second clamping rods (1003), and the ends of the second clamping rods (1003) pass through the second rotating sleeve (1002) and are slidably connected inside the second rotating sleeve (1002).

7. The fixing fixture for cutting square tubes according to claim 1, characterized in that: Anti-skid feet (14) are fixedly installed at the four corners of the bottom of the base plate (1), and a rubber anti-skid ring is provided at the bottom of the anti-skid feet (14).

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