Pipe fitting arc-shaped fixing clamp for pipe fitting welding machine

Abstract

The utility model relates to the field of fixing clamps, in particular to a pipe fitting arc-shaped fixing clamp for a pipe fitting welding machine. The pipe fitting arc-shaped fixing clamp for the pipe fitting welding machine comprises a base. Two supporting frames are slidably connected to the top of the base, and fixing rings are connected to the tops of the two supporting frames; wherein a clamping assembly is arranged in the fixing ring, and a pipe fitting can be clamped through the clamping assembly; a moving assembly is arranged in the base, and the distance between the two supporting frames can be adjusted through the moving assembly. According to the pipe fitting arc-shaped fixing clamp for the pipe fitting welding machine, due to the arrangement of the clamping assembly and the cooperative operation of a transmission gear ring, a driven gear, a driving gear, a toothed plate and a clamping block in the clamping assembly, a pipe fitting can be tightly clamped in multiple directions at the same time, various interference forces in the welding process are effectively resisted, and the welding quality is improved. The position of the pipe fitting is fixed during welding, the welding quality is remarkably improved, and the rejection rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fixed clamp especially relates to a pipe fitting arc fixed clamp for pipe fitting welding machine. BACKGROUND

[0002] In pipe fitting welding process, accurate welding operation is closely connected with the stable fixing of pipe fitting. Pipe fitting welding aims to reliably connect various pipe fittings to form a pipe system meeting specific engineering requirements. This process requires extremely high welding precision, weld strength and sealing performance. If pipe fitting displacement or shaking occurs during welding, weld porosity, cracks and other defects are prone to occur, which seriously affects welding quality and the reliability of the pipe system. In pipe fitting welding operation, the adaptability of conventional fixed clamps to different specifications of pipe fittings is poor. The fixing interval of common clamps is difficult to flexibly adjust. When facing pipe fittings with different lengths and diameters, clamps often need to be frequently replaced or complex manual modification is required, which not only consumes a large amount of time and labor, but also reduces production efficiency.

[0003] Therefore, it is necessary to provide a new pipe fitting arc fixed clamp for pipe fitting welding machine to solve the above technical problems. SUMMARY

[0004] To overcome the defects existing in the prior art, a pipe fitting arc fixed clamp for pipe fitting welding machine is provided to solve the above problems.

[0005] The pipe fitting arc fixed clamp for pipe fitting welding machine provided by the utility model comprises a base, two support frames slidingly connected to the top of the base, and a fixing ring connected to the top of each of the two support frames. A clamping assembly is arranged in the fixing ring, and the pipe fitting can be clamped by the clamping assembly. A moving assembly is arranged in the base, and the distance between the two support frames can be adjusted by the moving assembly.

[0006] Preferably, the clamping assembly comprises a transmission gear ring rotatably connected to the inner wall of the fixing ring, and a driven gear equidistantly meshed and connected to the outer side of the transmission gear ring. Each driven gear is rotatably connected to the inner wall of the fixing ring on one side. A driving gear is arranged between two driven gears, and the outer side of the driving gear is meshed and connected to the outer side of the transmission gear ring. A driving member for driving the driving gear to rotate is installed on the top of one side of the fixing ring.

[0007] Preferably, a toothed plate is equidistantly slidingly connected around the fixing ring. The side of the toothed plate close to the driven gear is meshed and connected to the driven gear. The side of the toothed plate close to the center of the fixing ring is connected to a clamping block. The side of the toothed plate away from the fixing ring is connected to a limiting block.

[0008] Preferably, the inner side wall of the fixed ring is provided with a guide block on one side of each tooth plate, and the tooth plate is provided with a guide groove for sliding of the guide block.

[0009] Preferably, the moving assembly comprises a double-direction screw rod rotationally connected to the base, outer ends of the double-direction screw rod are threadedly connected with threaded blocks, two sides of the threaded blocks are connected with adjusting rods, and the adjusting rods on the same side are commonly connected with traction blocks at ends away from the threaded blocks.

[0010] Preferably, the top of each of the two traction blocks is connected with a sliding block, the top of the base is provided with a sliding groove for sliding of the two sliding blocks, and the top of each of the two sliding blocks penetrates the sliding groove and is connected with the bottom of the supporting frame.

[0011] Compared with the related art, the pipe arc-shaped fixing clamp for the pipe welding machine has the following beneficial effects:

[0012] The pipe arc-shaped fixing clamp for the pipe welding machine has the following beneficial effects:

[0013] The pipe arc-shaped fixing clamp for the pipe welding machine has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A preferred embodiment of the pipe arc-shaped fixing clamp for the pipe welding machine is shown in the structure diagram.

[0015] Figure 2 A preferred embodiment of the pipe arc-shaped fixing clamp for the pipe welding machine is shown in the structure diagram. Figure 1 A preferred embodiment of the pipe arc-shaped fixing clamp for the pipe welding machine is shown in the structure diagram.

[0016] Figure 3 A preferred embodiment of the pipe arc-shaped fixing clamp for the pipe welding machine is shown in the structure diagram. Figure 1 A preferred embodiment of the pipe arc-shaped fixing clamp for the pipe welding machine is shown in the structure diagram.

[0017] In the drawings: 1, base; 11, supporting frame; 12, fixed ring; 2, transmission gear ring; 21, driven gear; 22, driving gear; 23, tooth plate; 24, clamping block; 25, guide block; 26, guide groove; 27, limiting block; 3, double-direction screw rod; 31, threaded block; 32, adjusting rod; 33, traction block; 34, knob; 35, sliding block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0019] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0020] The pipe arc-shaped fixing clamp for pipe welding machine provided by the utility model embodiment comprises a base 1, two support frames 11 are slidingly connected to the top of the fixing clamp base 1, and a fixing ring 12 is connected to the top of each of the two fixing clamp support frames 11. A clamping assembly is arranged in the fixing ring 12, and the clamping assembly can clamp the pipe. A moving assembly is arranged in the fixing clamp base 1, and the moving assembly can adjust the distance between the two support frames 11.

[0021] It should be noted that the base 1 is the basic support structure of the entire pipe arc-shaped fixing clamp, and provides a mounting and stable support platform for other components. There are two support frames 11, which are slidingly connected to the top of the base 1. The distance between the two support frames 11 can be flexibly adjusted according to the length of the pipe or the actual welding requirements, so as to adapt to the fixing requirements of pipes of different specifications. The fixing ring 12 is connected to the top of the two support frames 11. The main function of the fixing ring 12 is to provide a mounting position for the clamping assembly, so that the pipe is in a relatively stable position before being clamped by the clamping assembly, facilitating subsequent accurate clamping operation. The clamping assembly is arranged in the fixing ring 12. The function of the clamping assembly is to directly clamp the pipe. Through its specific structure and working mode, the pipe is tightly fixed to prevent displacement phenomena such as movement and rotation of the pipe during welding, ensuring the accuracy and quality of welding. The moving assembly is arranged in the base 1. The function of the moving assembly is to adjust the distance between the two support frames 11, so as to accurately adjust the distance between the two support frames 11 and meet the fixing requirements of pipes of different lengths.

[0022] In the embodiment of the utility model, the fixed clamp clamping assembly includes the transmission gear ring 2 rotatably connected to the inner side wall of the fixed ring 12, and the outer side of the transmission gear ring 2 is equidistantly meshed with the driven gear 21, one side of each fixed clamp driven gear 21 is rotatably connected with the inner side wall of the fixed ring 12, the driving gear 22 is arranged between two driven gears 21, and the outer side of the driving gear 22 is meshed with the outer side of the transmission gear ring 2, a driving member for driving the driving gear 22 to rotate is installed on one side top of the fixed clamp fixed ring 12, the fixed clamp fixed ring 12 is equidistantly slidably connected with the toothed plate 23 around, one side of the fixed clamp toothed plate 23 close to the driven gear 21 is meshed with the driven gear 21, one side of the fixed clamp toothed plate 23 close to the center of the fixed ring 12 is all connected with the clamping block 24, one side of the fixed clamp toothed plate 23 away from the fixed ring 12 is all connected with the limiting block 27, the inner side wall of the fixed clamp fixed ring 12 is all installed with the guide block 25 on one side of each toothed plate 23, the guide groove 26 for the guide block 25 to slide is formed in the fixed clamp toothed plate 23.

[0023] It needs to be explained: the transmission gear ring 2 is rotatably connected to the inner side wall of the fixed ring 12. It plays the role of power transmission hub, and the rotating power of the driving gear 22 is transmitted to the plurality of driven gears 21 through the meshing relationship, and then drives the tooth plate 23 and the clamping block 24 to act, realizing the clamping operation of the pipe. The outer side of the driven gear 21 is equidistantly meshed and connected on the transmission gear ring 2. One side of each driven gear 21 is rotatably connected to the inner side wall of the fixed ring 12. The driven gear 21 receives power from the transmission gear ring 2 and converts it into its own rotation. The driving gear 22 is arranged between the two driven gears 21, and the outer side is meshed and connected with the outer side of the transmission gear ring 2. The driving gear 22 is driven to rotate by the driving member, which is the starting input point of the power of the whole clamping assembly. Through the meshing with the transmission gear ring 2, the power provided by the driving member is transmitted to the transmission gear ring 2, and then the working process of the whole clamping assembly is started. The driving member is a motor. The tooth plate 23 is equidistantly slidably connected around the fixed ring 12. The side of the tooth plate 23 close to the driven gear 21 is meshed and connected with the driven gear 21. The tooth plate 23 is driven by the driven gear 21 to slide linearly along the radial direction of the fixed ring 12. The side close to the center of the fixed ring 12 is connected with the clamping block 24. The clamping block 24 is clamped or loosened by the sliding of the tooth plate 23. The clamping block 24 is connected to the side of the tooth plate 23 close to the center of the fixed ring 12. The clamping block 24 directly contacts with the pipe, and is tightly fixed to the pipe from different directions by the power transmitted by the tooth plate 23. The limiting block 27 limits the sliding range of the tooth plate 23, prevents the tooth plate 23 from being separated from the fixed ring 12 during sliding, and ensures the stability and reliability of the clamping assembly. The guide block 25 is installed on one side of each tooth plate 23 on the inner side wall of the fixed ring 12. The guide block 25 cooperates with the guide groove 26 on the tooth plate 23 to provide a guide for the sliding of the tooth plate 23, so that the tooth plate 23 can slide smoothly and accurately along the radial direction of the fixed ring 12, avoiding deviation or jamming of the tooth plate 23 during sliding, thereby ensuring that the clamping assembly can work normally and efficiently.

[0024] In the embodiment of the utility model, fixed clamp movement component includes with the inside rotation connection of base 1 two -way screw rod 3, the outer side both ends of fixed clamp two -way screw rod 3 are all threadedly connected with threaded block 31, both sides of two fixed clamp threaded block 31 are all connected with adjusting lever 32, the end of fixed clamp adjusting lever 32 away from threaded block 31 at the same side is jointly connected with traction block 33, one side of fixed clamp base 1 is installed for driving two -way screw rod 3 rotation knob 34, the top of two fixed clamp traction block 33 is all connected with sliding block 35, the top of two fixed clamp sliding block 35 is all through the sliding slot and is connected with the bottom of support frame 11 respectively.

[0025] It needs to be explained that the bidirectional screw rod 3 is rotatably connected in the base 1. The bidirectional screw rod 3 is the core component of the moving assembly to realize the spacing adjustment function. When it rotates, the threads of different rotation directions at the two ends of the outer side can make the two threaded blocks 31 connected with the threads move in opposite directions along the axial direction of the screw rod, and then drive other components connected therewith to act, thereby realizing the adjustment of the spacing of the two support frames 11. The two threaded blocks 31 are connected with the adjusting rods 32 on both sides, and the ends of the adjusting rods 32 away from the threaded blocks 31 on the same side are commonly connected with the traction blocks 33. The adjusting rod 32 plays a role of force transmission and direction conversion, transmits the linear movement of the threaded block 31 to the traction block 33, and through the connection mode, ensures that the traction block 33 can move stably in the horizontal direction, and provides a stable power transmission path for the subsequent movement of the sliding block 35 and the support frame 11. The traction block 33 is connected with the threaded block 31 through the adjusting rod 32. The traction block 33 concentrates the power transmitted by the adjusting rod 32, drives the sliding block 35 connected at the top to slide in the sliding groove opened at the top of the base 1, and then realizes the traction movement of the support frame 11, which is the key connecting component for power transmission in the process of adjusting the spacing of the support frame 11. The knob 34 is installed on one side of the base 1, and is used to drive the bidirectional screw rod 3 to rotate. The operator manually rotates the knob 34 to provide power for the rotation of the bidirectional screw rod 3. The sliding block 35 is driven by the traction block 33 to slide stably along the sliding groove at the top of the base 1. On the one hand, it plays a guiding role to ensure that the support frame 11 can only move linearly along the direction of the sliding groove, and on the other hand, it transmits the power of the traction block 33 to the support frame 11 to realize the accurate position adjustment of the support frame 11 on the base 1, so as to meet the fixing requirements of pipe fittings of different lengths.

[0026] The working principle of the pipe arc-shaped fixing clamp for the pipe welding machine is as follows: when the interval between the two support frames 11 needs to be adjusted to adapt to pipe pieces of different lengths, an operator manually rotates the knob 34 installed on one side of the base 1. The knob 34 drives the bidirectional screw rod 3 to rotate in the base 1. Since the screw threads on the two ends of the outer side of the bidirectional screw rod 3 are opposite in rotation direction, the two threaded blocks 31 connected with the bidirectional screw rod 3 will move in opposite directions along the axial direction of the screw rod. The movement of the threaded blocks 31 is transmitted to the traction block 33 through the adjusting rod 32. The traction block 33 drives the sliding block 35 connected at the top to slide in the sliding groove on the top of the base 1, and then drives the support frame 11 connected thereto to slide on the top of the base 1, so as to adjust the interval between the two support frames 11. After the pipe piece is placed in the fixing ring 12, the driving member is started. The driving member drives the driving gear 22 to rotate. The driving gear 22 is engaged with the transmission gear ring 2, and the power is transmitted to the transmission gear ring 2, so that the transmission gear ring 2 rotates on the inner side wall of the fixing ring 12. The driven gears 21 engaged at equal intervals on the outer side of the transmission gear ring 2 start to rotate under the driving of the transmission gear ring 2. The rotation of the driven gears 21 drives the toothed plates 23 engaged therewith to slide linearly along the radial direction of the fixing ring 12. The clamping blocks 24 connected to the side of the toothed plates 23 close to the center of the fixing ring 12 simultaneously approach the pipe piece from different directions along with the sliding of the toothed plates 23, and tightly clamp the pipe piece. In the sliding process of the toothed plates 23, the guide blocks 25 slide in the guide grooves on the toothed plates 23 to provide guidance for the toothed plates 23 and ensure the stable and accurate movement of the toothed plates 23. The limiting blocks 27 limit the sliding range of the toothed plates 23 to prevent the toothed plates 23 from being separated from the fixing ring 12.

[0027] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0028] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model. Any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. A pipe arc fixing jig for a pipe welding machine, characterized by, Include: Base (1); Two support frames (11) are connected to the top of the base (1) in a sliding manner, and the top of each of the two support frames (11) is connected with a fixed ring (12); Wherein, a clamping assembly is arranged in the fixed ring (12), and the pipe can be clamped by the clamping assembly; The base (1) is provided with a moving assembly, and the distance between the two support frames (11) can be adjusted by the moving assembly.

2. The pipe arc fixture for a pipe welding machine according to claim 1, characterized by, The clamping assembly comprises a transmission gear ring (2) rotatably connected to the inner side wall of the fixed ring (12), and the outer side of the transmission gear ring (2) is equidistantly meshed with a driven gear (21), one side of each driven gear (21) is rotatably connected with the inner side wall of the fixed ring (12), a driving gear (22) is arranged between two driven gears (21), and the outer side of the driving gear (22) is meshed with the outer side of the transmission gear ring (2), a driving member for driving the driving gear (22) to rotate is installed on one side of the top of the fixed ring (12).

3. The pipe arc fixture for a pipe welding machine according to claim 2, characterized by, The fixed ring (12) is equidistantly connected with a toothed plate (23) around, the side of the toothed plate (23) close to the driven gear (21) is meshed with the driven gear (21), the side of the toothed plate (23) close to the center of the fixed ring (12) is connected with a clamping block (24), and the side of the toothed plate (23) away from the fixed ring (12) is connected with a limiting block (27).

4. The pipe arc fixture for a pipe welding machine according to claim 3, characterized by The inner side wall of the fixed ring (12) is provided with a guide block (25) on one side of each toothed plate (23), and a guide groove (26) is formed in the toothed plate (23) for the sliding of the guide block (25).

5. The pipe arc fixture for a pipe welding machine according to claim 4, wherein The moving assembly comprises a bidirectional screw (3) rotatably connected with the base (1), the outer sides of both ends of the bidirectional screw (3) are threadedly connected with a threaded block (31), the two sides of the threaded block (31) are connected with an adjusting rod (32), the ends of the adjusting rods (32) away from the threaded block (31) on the same side are connected with a traction block (33), and a knob (34) for driving the bidirectional screw (3) to rotate is installed on one side of the base (1).

6. The pipe arc fixture for a pipe welding machine according to claim 5, wherein The top of each of the two traction blocks (33) is connected with a sliding block (35), and the top of the base (1) is provided with a sliding groove for the sliding of the two sliding blocks (35), the top of each of the two sliding blocks (35) penetrates the sliding groove and is connected with the bottom of the support frame (11).

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