Accurate welding device for controlling upper and lower concentricity of movable air chamber push rod

Abstract

The utility model discloses a precise welding device for controlling the vertical concentricity of a push rod of a brake chamber, which is used for welding a push disc and the push rod in the brake chamber and comprises a rack, a welder is arranged in the rack, and a first three-jaw cylinder and a second three-jaw cylinder which are horizontally arranged are arranged on the rack. The output end of the first three-jaw air cylinder and the output end of the second three-jaw air cylinder are oppositely arranged and located at the same height, the first three-jaw air cylinder is driven by a motor to rotate, the outer side of the second three-jaw air cylinder is pivoted through a support, the first three-jaw air cylinder clamps the push disc, and the second three-jaw air cylinder indirectly clamps the push rod through an embedded sleeve base extending in the outer circumferential direction. The cylinder base is nested on the outer side of the push rod, extension of the circumferential size is achieved, clamping of the push rod is indirectly completed, synchronous clamping of the push disc and the push rod is achieved through the first three-jaw air cylinder and the second three-jaw air cylinder which are the same in height, and it can be guaranteed that the push disc and the push rod are kept in the perpendicular state to a certain extent after being welded.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a precise welding device for controlling the upper and lower concentricity of a push rod of an actuating air chamber. Background Art

[0002] The joints between the push plate and the push rod in the brake air chamber need to be welded circumferentially to achieve fixation. During welding, the two need to be kept completely vertical, that is, their center lines coincide. If there is a slight deflection, the deflection will easily increase due to the long length of the push rod, resulting in the scrapping of the product. Therefore, accurately clamping the two and being able to stably clamp them during the welding process are the design focuses for achieving precise welding.

[0003] This case was created to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a precise welding device for controlling the upper and lower concentricity of a push rod of a dynamic air chamber, thereby solving the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a precise welding device for controlling the upper and lower concentricity of the brake air chamber push rod, which is used for welding the push plate and the push rod in the brake air chamber, including a frame, a welder is arranged in the frame, and the frame is provided with horizontally arranged three-claw cylinder one and three-claw cylinder two, the output ends of the three-claw cylinder one and the three-claw cylinder two are arranged relatively to each other, and the two are at the same height, the three-claw cylinder one is driven to rotate by a motor, and the outer side of the three-claw cylinder two is pivotally connected by a support seat, the three-claw cylinder one clamps the push plate, and the three-claw cylinder two indirectly clamps the push rod through a nested cylinder seat extending outwardly.

[0008] Preferably, the output end of the motor is connected to a rotating block, which is connected to the first three-claw cylinder to drive its rotation, and the support pivotally connected to the outer side of the second three-claw cylinder on the other side is connected to the frame through a fixed seat.

[0009] Preferably, a thread groove is provided through the cylinder seat, and the cylinder seat is threadedly connected to a set seat.

[0010] Preferably, a hole is formed on the inner side of the sleeve, and the hole is matched with the size of the push rod to enable plug-in.

[0011] (III) Beneficial effects

[0012] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a precise welding device for controlling the upper and lower concentricity of the brake air chamber push rod, and a cylinder seat is nested on the outer side of the push rod to achieve the extension of the circumferential dimension, thereby indirectly completing the clamping of the push rod, and synchronously clamping the push plate and the push rod is achieved through two three-jaw cylinders 1 and 2 of the same height, which can ensure that the two remain in a vertical state after welding to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the structure of the three-claw cylinder in the utility model;

[0015] Figure 3 This is a schematic diagram of disassembling the middle cylinder seat and the sleeve seat of the utility model;

[0016] Figure 4 It is a schematic diagram of one side of the sleeve seat in the utility model.

[0017] In the figure: 1. frame; 2. three-jaw cylinder 1; 3. push plate; 4. push rod; 5. three-jaw cylinder 2; 6. cylinder seat; 7. sleeve seat; 8. thread groove; 9. external thread; 10. clamping jaw; 11. motor; 12. rotating block; 13. support; 14. fixing seat; 15. hole position. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below through the drawings and embodiments.

[0019] like Figure 1-2 As shown: A precise welding device for controlling the upper and lower concentricity of the push rod of the brake air chamber, mainly for the precise welding of the push plate 3 and the push rod 4 in the brake air chamber, adopts the method of precisely clamping the push plate 3 and the push rod 4, that is, by horizontally aligning the axis lines of the two to achieve precise welding.

[0020] The welding device includes a frame 1, on which are arranged horizontally three-claw cylinder 1 2 and three-claw cylinder 2 5, the output ends of which are arranged opposite to each other and are at the same height. A welder (using a conventional structure, which is not described in detail in this application) is also arranged next to the three-claw cylinder 1 2.

[0021] For the welding of the push plate 3 and the push rod 4, a weld needs to be made around the joint between the two. Therefore, a motor 11 can be horizontally arranged on one side of the frame 1. The output end of the motor 11 is connected to a rotating block 12. The rotating block 12 is connected to the three-claw cylinder 1 2 to drive it to rotate so that it can cooperate with the fixed position welder to complete the welding. The outer side of the three-claw cylinder 2 5 on the other side is pivotally connected to a support 13, and the support 13 is connected to the frame 1 through a fixed seat 14.

[0022] Due to the limitation of the size that the clamping jaws 10 of the three-jaw cylinder 2 can clamp, the small-sized push rod 4 cannot be clamped by the clamping jaws 10. Figure 3 As described, this embodiment adopts a tube seat 6 nested on the outside of the push rod 4 to achieve the extension of the circumferential dimension, indirectly complete the clamping of the push rod 4, and realize the synchronous clamping of the push plate 3 and the push rod 4 through two three-jaw cylinders 1 2 and three-jaw cylinders 2 5 of the same height, which can ensure that the two remain in a vertical state after welding to a certain extent.

[0023] Furthermore, during the initial installation, the positions of the push plate 3 and the push rod 4 need to have a certain gap for easy installation, and the ends of the two can be butted against each other during welding. Therefore, this embodiment adopts a sleeve seat 7 connected to the inner thread of the cylinder seat 6, that is, a thread groove 8 is provided through and opened in the cylinder seat 6, and an outer thread 9 is provided on the outer periphery of the sleeve seat 7. Figure 4 The inner side of the sleeve 7 is provided with a hole 15, which is adapted to the size of the push rod 4 so as to be plugged in. After installation, the push rod 4 and the push plate 3 can be abutted against each other by rotating the relative position of the sleeve 7 and the tube sleeve.

[0024] The above-mentioned embodiments are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the scope of the invention. The technical scope of this new type of use is not limited to the content in the specification, and its protection scope must be determined according to the scope of the claims.

Claims

1. A precise welding device for controlling the upper and lower concentricity of a brake chamber push rod, used for welding a push plate and a push rod in a brake chamber, comprising a frame, a welding device is arranged in the frame, and is characterized in that: The frame is provided with horizontally arranged three-claw cylinder one and three-claw cylinder two, the output ends of the three-claw cylinder one and three-claw cylinder two are arranged relatively to each other, and the two are at the same height, the three-claw cylinder one is driven to rotate by a motor, and the outer side of the three-claw cylinder two is pivotally connected by a support seat, the three-claw cylinder one clamps the push plate, and the three-claw cylinder two indirectly clamps the push rod through a nested cylinder seat extending outwardly.

2. A precise welding device for controlling the upper and lower concentricity of a push rod of a pneumatic chamber according to claim 1, characterized in that: The output end of the motor is connected to a rotating block, which is connected to the first three-claw cylinder to drive it to rotate. The support pivotally connected to the outer side of the second three-claw cylinder on the other side is connected to the frame through a fixed seat.

3. The precise welding device for controlling the upper and lower concentricity of the push rod of the actuating air chamber according to claim 1, characterized in that: The cylinder seat is penetrated and provided with a thread groove, and the cylinder seat is threadedly connected with a set seat.

4. The precise welding device for controlling the upper and lower concentricity of the push rod of the actuating air chamber according to claim 3, characterized in that: A hole is provided inside the sleeve, and the hole is matched with the size of the push rod to enable plug-in.

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