Gravity balance arm device

Abstract

The utility model provides a gravity balance arm device, which relates to the technical field of balance arms and comprises a base, a lifting rod is fixedly mounted at the top of the base, a first supporting arm is movably connected to the surface of the lifting rod, and a pneumatic control valve is fixedly mounted in the first supporting arm. The top of the first supporting arm is movably connected with a second supporting arm through a shaft pin and a brake cylinder, and an air cylinder is fixedly installed in the second supporting arm. The bidirectional motor is started and rotates to drive the screw rod to rotate, so that the screw sleeve is driven to move towards the outer side, the moving block and the rolling wheel are driven to move towards the outer side, meanwhile, the limiting rod and the limiting block are used for limiting, the supporting efficiency of the base is improved, and meanwhile the first supporting arm is rotated to be adjusted to a proper position; and then the second supporting arm is rotated through the shaft pin, and the length is adjusted through the air cylinder, so that the supporting rod and the welding gun are adjusted to proper positions, and efficient welding is conducted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a balance arm technical field, concretely relates to a gravity balance arm device. BACKGROUND

[0002] The welding gun is an important tool for performing welding operation in the welding process, which is shaped like a gun, has a nozzle at the front end, and is used for spraying high-temperature flame as a heat source. The welding gun is composed of heating elements, nozzles and other components, and has the advantages of flexible use, convenient and fast operation, and simple process. The welding gun has various types, which can be divided into gas welding guns, electric welding guns, quick welding guns and automatic welding guns according to the structure. According to the wire feeding mode, the welding gun can be divided into wire drawing type welding gun and wire pushing type welding gun. The wire drawing type welding gun has uniform and stable wire feeding speed, but the structure is complex and only thin welding wire can be used. The wire pushing type welding gun has simple structure and flexible operation, and is suitable for welding wire with large diameter. In addition, the welding gun can be divided into air-cooled type and water-cooled type according to the welding current and the protective gas used. The welding gun plays a key role in the welding process, and its performance directly affects the welding quality and efficiency.

[0003] The welding gun is used for welding work. The existing welding gun usually needs to be held by the user for welding. The welding gun is heavy, and the user holds it for a long time, which consumes a lot of physical energy and reduces the welding efficiency, which is not conducive to long-time welding.

[0004] Therefore, it is necessary to design and reform the welding gun support device to effectively prevent the existing welding gun from being held by the user for welding, the welding gun being heavy, the user holding it for a long time, consuming a lot of physical energy, reducing the welding efficiency, and being not conducive to long-time welding. INVENTION CONTENTS

[0005] The gravity balance arm device provided by the utility model solves the problems in the background art.

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0007] The embodiment of the utility model provides a gravity balance arm device, which comprises a base, a lifting rod fixedly installed on the top of the base, a first supporting arm movably connected to the surface of the lifting rod, a pneumatic control valve fixedly installed in the first supporting arm, a second supporting arm movably connected to the top of the first supporting arm through an axle pin and a brake cylinder, a pneumatic cylinder fixedly installed in the second supporting arm, a supporting rod movably connected to the top of the second supporting arm through an axle pin, a welding gun arranged at the bottom of the supporting rod, and an extension mechanism arranged in the base.

[0008] Through the above technical scheme, the area supported by the base can be efficiently adjusted through the arrangement of the extension mechanism, so that the stability of the balance arm in use is improved.

[0009] Further, the telescopic mechanism comprises a bidirectional motor, both sides of the bidirectional motor are fixedly connected with screw rods, and the surfaces of the screw rods are engaged with screw sleeves.

[0010] Through the above technical scheme, the screw rod and the screw sleeve are arranged, the moving block is moved to both sides, and efficient adjustment is realized.

[0011] Further, the outer side of the screw sleeve is fixedly connected with a moving block, and the bottom of the moving block is fixedly connected with a roller.

[0012] Through the above technical scheme, the roller is driven to move by the moving block, so that the supporting area is improved.

[0013] Further, the top and the bottom of the inner side of the moving block are fixedly connected with limiting rods, and the inner side of the limiting rod is fixedly connected with a limiting block.

[0014] Through the above technical scheme, the limiting block and the limiting rod are arranged, the moving block is limited, and the stability of the moving block is improved.

[0015] Further, the both sides of the base are provided with limiting grooves matched with the limiting blocks.

[0016] Through the above technical scheme, the limiting rod and the limiting block are limited by the limiting groove, and the user is facilitated to use.

[0017] Further, the bottom of the first supporting arm is provided with a ventilation hole, and the ventilation hole is matched with the air cylinder.

[0018] Through the above technical scheme, the air cylinder is facilitated to run and transport gas, so that the stability of the air cylinder is improved.

[0019] The above scheme of the utility model has at least the following beneficial effects:

[0020] 1. The bidirectional motor is started, the bidirectional motor drives the screw rod to rotate, the screw sleeve is driven to move outward, the moving block and the roller are driven to move outward, the limiting rod and the limiting block are limited, the supporting efficiency of the base is improved, the first supporting arm is rotated, the second supporting arm is rotated through the shaft pin, the length of the air cylinder is adjusted, the supporting rod and the welding gun are adjusted to the appropriate position, and efficient welding is realized.

[0021] 2. The air control valve is arranged, the telescopic length of the air cylinder is efficiently adjusted, the user is facilitated to efficiently weld, and the user is facilitated to use. DRAWINGS

[0022] Fig. 1 is the schematic diagram of the lifting rod structure of the utility model;

[0023] Fig. 2 is the schematic diagram of the roller structure of the utility model.

[0024] Mark explanation:

[0025] 1, base; 2, lifting rod; 3, first support arm; 4, air control valve; 5, second support arm; 6, air cylinder; 7, support rod; 8, welding torch; 9, telescopic mechanism; 91, bidirectional motor; 92, screw rod; 93, screw sleeve; 94, moving block; 95, roller; 96, limiting rod; 97, limiting block; 98, limiting groove; 99, air hole. Specific implementation

[0026] Exemplary embodiments of the utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the utility model and to convey the scope of the utility model to those skilled in the art.

[0027] As Figs. 1-2 shown, the utility model provides a gravity balance arm device, including: base 1, the top of base 1 is fixedly installed with lifting rod 2, the surface of lifting rod 2 is movably connected with first support arm 3, the inside of first support arm 3 is fixedly installed with air control valve 4, the top of first support arm 3 is movably connected with second support arm 5 through shaft pin and brake cylinder, the inside of second support arm 5 is fixedly installed with air cylinder 6, the top of second support arm 5 is movably connected with support rod 7 through shaft pin, the bottom of support rod 7 is provided with welding torch 8, the inside of base 1 is provided with telescopic mechanism 9.

[0028] As Figs. 1-2 shown, telescopic mechanism 9 includes bidirectional motor 91, the both sides of bidirectional motor 91 are fixedly connected with screw rod 92, the surface of screw rod 92 is engaged with screw sleeve 93, the outside of screw sleeve 93 is fixedly connected with moving block 94, the bottom of moving block 94 is fixedly connected with roller 95, the top and bottom of moving block 94 inside are fixedly connected with limiting rod 96, the inside of limiting rod 96 is fixedly connected with limiting block 97, the both sides of base 1 are provided with limiting groove 98 used in cooperation with limiting block 97, the bottom of first support arm 3 is provided with air hole 99, air hole 99 is used in cooperation with air cylinder 6.

[0029] In the embodiment of the utility model, user starts two -way motor 91, two -way motor 91 rotates and drives screw rod 92 to rotate to drive the movement of the block 94 and the roller 95 to the outside, limit through the limit rod 96 and the limit block 97, improve the support efficiency of base 1, rotate first support arm 3 at the same time, adjust to the appropriate position, then through the axle pin rotation second support arm 5, and adjust the length through air cylinder 6, make support rod 7 and welding torch 8 adjust to the appropriate position to carry out efficient welding.

[0030] The above is the preferred embodiment of the utility model, it should be pointed out that for ordinary technical personnel in the prior art, without departing from the principle of the utility model described, can also make a number of improvements and refinements, these improvements and refinements also should be considered as the protection scope of the utility model.

Claims

1. A gravity counterbalance arm device, characterized by, Include: The base (1), the top of the base (1) is fixedly installed with lifting rod (2), the surface of lifting rod (2) is movably connected with first support arm (3), the inside of first support arm (3) is fixedly installed with air control valve (4), the top of first support arm (3) is movably connected with second support arm (5) through shaft pin and brake cylinder, the inside of second support arm (5) is fixedly installed with air cylinder (6), the top of second support arm (5) is movably connected with support rod (7) through shaft pin, the bottom of support rod (7) is provided with welding gun (8), the inside of base (1) is provided with telescopic mechanism (9).

2. A gravity counterbalance arm device according to claim 1, wherein, The telescopic mechanism (9) includes a bidirectional motor (91), both sides of the bidirectional motor (91) are fixedly connected with screw rod (92), the surface of screw rod (92) is engaged with screw sleeve (93).

3. A gravity counterbalance arm device according to claim 2, wherein, The outer side of screw sleeve (93) is fixedly connected with moving block (94), the bottom of moving block (94) is fixedly connected with roller (95).

4. A gravity counterbalance arm device according to claim 3, wherein, The top and bottom of the inner side of moving block (94) are fixedly connected with limit rod (96), the inner side of limit rod (96) is fixedly connected with limit block (97).

5. A gravity counterbalance arm device according to claim 1, wherein, The both sides of base (1) are provided with limit slot (98) for cooperating with limit block (97).

6. A gravity counterbalance arm device according to claim 1, wherein, The bottom of first support arm (3) is provided with air hole (99), which is used with air cylinder (6).

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