Pipe joint welding positioning device

Abstract

The utility model provides a pipe joint welding and positioning device, and belongs to the technical field of hydraulic cylinder production auxiliary equipment. And the positioning assemblies are symmetrically arranged and connected with the two ends of the two-way adjusting assembly correspondingly, each positioning assembly comprises an electric telescopic rod, containing grooves are formed in the lower end of each electric telescopic rod in a circumferential array mode, and supporting plates are arranged in the containing grooves in a telescopic mode. By using the scheme provided by the invention, when the pipe joint is welded on the cylinder body instead of manual work, the pipe joint is kept concentric with the mounting hole in the cylinder body, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic cylinder production auxiliary equipment technical field especially relates to a pipe joint welding positioning device. BACKGROUND

[0002] In the production and assembly process of the hydraulic cylinder, pipe joints are welded on both ends of the cylinder body to facilitate the connection of the hydraulic pipeline, so that the hydraulic oil enters the oil cylinder, thereby achieving the purpose of controlling the extension or retraction of the piston rod.

[0003] The existing pipe joint welding method is as follows: a worker holds the pipe joint with one hand and aligns the pipe joint with the mounting hole on the cylinder body, holds the welding gun with the other hand, and uses the welding gun to perform electric welding to fix the position of the pipe joint, then observes whether the pipe joint is concentric with the mounting hole on the cylinder body, if concentric, performs one circle of fixed welding, if not concentric, knocks it off and repositions and welds it.

[0004] In this process, to avoid the splashing of welding slag on the hands during welding, the worker needs to wear gloves for protection. The commonly used workshop gloves are large in size and thick, thereby reducing the sensitivity of hand operation and easily causing the pipe joint to be eccentric, and the operation efficiency is low. UTILITY MODEL CONTENTS

[0005] To solve the above-mentioned problems of the prior art, the utility model provides a pipe joint welding positioning device, which can keep the pipe joint concentric with the mounting hole on the cylinder body when the pipe joint is welded on the cylinder body by replacing manual operation, and has high efficiency.

[0006] To achieve the purpose of the utility model, the following scheme is adopted:

[0007] A pipe joint welding positioning device, comprising:

[0008] A bidirectional adjusting assembly is arranged on the rack;

[0009] A positioning assembly is symmetrically arranged in a group and is connected to both ends of the bidirectional adjusting assembly, the positioning assembly comprises an electric telescopic rod, a plurality of accommodating grooves are arranged in a circumferential array at the lower end of the electric telescopic rod, and a supporting plate is telescopically arranged in the accommodating groove.

[0010] Further, the bidirectional adjusting assembly comprises a mounting plate, the mounting plate is provided with a sliding groove at the length direction, a limiting seat is arranged at the middle part of the mounting plate and crosses the sliding groove, a bidirectional screw rod is rotatably arranged on the limiting seat, two triangular seats are arranged at both ends of the sliding groove, both ends of the bidirectional screw rod are rotatably connected with the triangular seats, a motor is arranged at one end of the bidirectional screw rod and penetrates one of the triangular seats, and the motor is mounted at one end of the mounting plate.

[0011] Further, the accommodating groove has a rectangular structure, and the lower end of the accommodating groove penetrates the lower end of the electric telescopic rod.

[0012] Further, one side of the support plate is parallel to the groove bottom of the accommodating groove, and springs are arranged between the one side of the support plate and the groove bottom of the accommodating groove.

[0013] Further, the support plate comprises a rectangular plate, one side of the rectangular plate is connected to one end of the spring, and the other side of the rectangular plate is provided with an isosceles trapezoidal plate.

[0014] The pipe joint welding positioning device has the advantages that:

[0015] The electric telescopic rod is inserted into the cylinder mounting hole, and the support plate acts on the inner wall of the pipe joint, so that the pipe joint and the mounting hole are kept concentric, and the two ends of the pipe joint are pressed by the outer wall of the cylinder and the electric telescopic rod before welding, so that the position of the pipe joint is kept fixed during the welding process. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are only for illustrating selected embodiments, rather than all possible embodiments, and are not intended to limit the scope of the utility model.

[0017] Figure 1 The application scenario schematic diagram of the application is shown.

[0018] Figure 2 The application scenario schematic diagram of the application is shown. Figure 1 The width direction cross-sectional view is shown.

[0019] Figure 3 The application scenario schematic diagram of the application is shown. Figure 2 The A local enlarged schematic diagram of the application is shown.

[0020] Figure 4 The mounting structure schematic diagram of the electric telescopic rod and the support plate of the application is shown.

[0021] In the figure, the mark: bidirectional adjusting assembly-10, mounting plate-11, sliding groove-12, limiting seat-13, bidirectional screw rod-14, triangular seat-15, motor-16, positioning assembly-20, electric telescopic rod-21, accommodating groove-22, support plate-23, rectangular plate-231, isosceles trapezoidal plate-232, spring-24. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the embodiments of the utility model are described in detail below with reference to the drawings, but the embodiments described by the utility model are part of the embodiments of the utility model, rather than all the embodiments.

[0023] As Figures 1-4 shown, the embodiment provides a pipe joint welding positioning device, which comprises a bidirectional adjusting assembly 10 and a positioning assembly 20 symmetrically arranged on the bidirectional adjusting assembly 10.

[0024] Specifically, as shown in Figure 1 , Figure 4 The bidirectional adjusting assembly 10 includes a mounting plate 11, a limiting seat 13, a bidirectional screw rod 14, a triangular seat 15, and a motor 16. One side of the mounting plate 11 is connected to a rack, and a sliding groove 12 is formed along the length direction of the mounting plate 11. The triangular seat 15 is arranged at both ends of the sliding groove 12. The bidirectional screw rod 14 is arranged above the sliding groove 12 along the length direction of the sliding groove 12, and both ends of the bidirectional screw rod 14 are rotatably connected to the triangular seat 15. The limiting seat 13 is arranged at the middle part of the mounting plate 11, and the middle part of the bidirectional screw rod 14 is arranged through the limiting seat 13 and rotatably connected to the limiting seat 13. The motor 16 is arranged at one end of the mounting plate 11 and located outside one of the triangular seats 15. One end of the bidirectional screw rod 14 behind the triangular seat 15 is connected to the output end of the motor 16. The positioning assembly 20 is arranged on the opposite threaded segments of the two threaded segments of the bidirectional screw rod 14.

[0025] As shown in Figure 4 , the positioning assembly 20 includes an electric telescopic rod 21 and a support plate 23. The upper end of the electric telescopic rod 21 is slidably connected to the sliding groove 12, and a rectangular seat is arranged at the upper end of the electric telescopic rod 21. The rectangular seat is threadedly connected to the corresponding threaded segment of the bidirectional screw rod 14, so that the bidirectional adjusting assembly 10 is used to adjust the distance between the two electric telescopic rods 21. As shown in Figures 2-3 , three accommodating grooves 22 are formed in a circumferential array at the lower end of the electric telescopic rod 21. The accommodating grooves 22 have a rectangular structure, and the lower end of the accommodating grooves 22 penetrates the lower end of the electric telescopic rod 21. The support plate 23 is arranged in the accommodating groove 22. One side of the support plate 23 facing the axis of the electric telescopic rod 21 is arranged with a spring 24. One end of the spring 24 is connected to the groove bottom of the accommodating groove 22. The support plate 23 includes a rectangular plate 231 and an isosceles trapezoidal plate 232. The rectangular plate 231 is adapted to the shape of the accommodating groove 22 and is arranged in the accommodating groove 22 in a telescopic manner. The spring 24 is connected to one side of the rectangular plate 231 facing the axis of the electric telescopic rod 21. The long side of the isosceles trapezoidal plate 232 is connected to the other side of the rectangular plate 231. When the support plate 23 is not subjected to external force, the upper and lower ends of the long side of the isosceles trapezoidal plate 232 accommodate the upper and lower ends of the accommodating groove 22, respectively. When the mounting hole on the cylinder body is consistent with the diameter of the electric telescopic rod 21, the lower end of the electric telescopic rod 21 is inserted into the mounting hole. When the support plate 23 is retracted into the accommodating groove 22 under the action of external force, or the support plate 23 is taken out of the mounting hole, the upper end of the support plate 23 is accommodated in the upper end of the accommodating groove 23, so that the support plate 23 is accommodated in the accommodating groove 23 under the action of the hole wall of the mounting hole, and it is convenient to take out.

[0026] The specific use process is as follows: according to the position of the pipe joint installed on the cylinder, the motor 16 is started, the motor 16 drives the bidirectional screw rod 14, the position of the electric telescopic rod 21 is adjusted through the bidirectional screw rod 14, the axis of the electric telescopic rod 14 is collinear with the axis of the mounting hole on the cylinder, the pipe joint is sleeved on the outer periphery of the distribution area of the supporting plate 23, the supporting plate 23 is under the action of the spring 24 and the lower end of the electric telescopic rod 21, and the supporting plate 23 is radially limited under the action of the isosceles trapezoidal plate 232.

[0027] The electric telescopic rod 21 is started, the lower end of the electric telescopic rod 21 drives the pipe joint to be inserted into the corresponding mounting hole, the pipe joint is blocked between the outer wall of the cylinder and the lower telescopic section of the electric telescopic rod 21 under the action of the cylinder wall, so that the two ends of the pipe joint are limited and kept concentric with the mounting hole, and then the welding gun is used for welding and fixing.

[0028] Preferably, when the diameter of the pipe joint is greater than the diameter of the telescopic section of the electric telescopic rod 21 from the lower end to the upper end, the lower end of the electric telescopic rod 21 and the upper end of the accommodating groove 22 are provided with a T-shaped sleeve, and the lower end of the electric telescopic rod 21 is locked along the radial direction of the vertical part of the T-shaped sleeve by using a locking screw, so that the use of more sizes of pipe joints is met, the cost is saved, and the operation is convenient.

[0029] Further preferably, a plurality of pipe joints can be arranged on the lower end of the electric telescopic rod 21 upwards, so as to reduce the feeding frequency of the pipe joints and improve the work efficiency.

[0030] The above only describes the preferred embodiments of the present application, and does not mean that it is the only or limiting the present application. Those skilled in the art should understand that various changes or equivalent replacements made to the present application without departing from the scope of the present application, all belong to the scope of protection of the present application.

Claims

1. A pipe joint welding positioning device, characterized by, The utility model relates to a double -sided adjusting assembly (10) is arranged on the frame, and a set of positioning assembly (20) is symmetrically arranged and is connected with the both ends of double -sided adjusting assembly (10) respectively, and the positioning assembly (20) includes electric telescopic rod (21), and the lower end of electric telescopic rod (21) is opened with containing groove (22) in circumferential array, and the containing groove (22) is arranged with support plate (23) in telescopic, and double -sided adjusting assembly (10) is used for adjusting the distance between electric telescopic rod (21). The double -sided adjusting assembly (10) includes mounting plate (11), and the length direction of mounting plate (11) has slide groove (12) initially, and the middle part of mounting plate (11) is equipped with the limit seat (13) of striding in slide groove (12), and the limit seat (13) is rotatably equipped with double -sided screw rod (14), and the both ends of slide groove (12) are equipped with triangular seat (15) respectively, and the both ends of double -sided screw rod (14) are rotatably connected with triangular seat (15) respectively, and one end of double -sided screw rod (14) is equipped with motor (16) through one of triangular seat (15), and motor (16) is installed in one end of mounting plate (11). The containing groove (22) is rectangular structure, and the lower end penetrates the lower end of electric telescopic rod (21).

2. The pipe joint welding positioning device of claim 1, wherein, One side of support plate (23) is parallel with the groove bottom of containing groove (22), and the spring (24) is arranged between one side of support plate (23) and the groove bottom of containing groove (22) in array.

3. The pipe joint welding positioning device of claim 1, wherein, The support plate (23) includes rectangular plate (231), one side of rectangular plate (231) is connected with one end of spring (24), the other side of rectangular plate (231) is equipped with isosceles trapezoidal plate (232), and the long side of isosceles trapezoidal plate (232) is connected with rectangular plate (231).

4. The pipe joint welding positioning device of claim 1, wherein, ​ 5. The pipe joint welding positioning device of claim 4, wherein, ​

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