Nut resistance welding machine with automatic feeding and discharging functions

Abstract

The utility model relates to the technical field of nut welding, and discloses an automatic feeding and discharging nut resistance welding machine which comprises a supporting frame, a first rotating shaft is installed in the supporting frame, the two ends of the first rotating shaft penetrate through the interior of the supporting frame, and a driven wheel is fixedly installed at one end of the first rotating shaft. And a second rotating shaft is movably mounted in the supporting frame. Compared with a traditional resistance welding machine, the resistance welding machine drives the conveying belt to rotate through cooperation of the transmission belt, the driving wheel and the driven wheel, efficient and automatic conveying of sheet metal parts is achieved through the conveying belt, and the conveying belt can continuously and stably move the sheet metal parts according to the preset beat and speed; according to the technical scheme, the production efficiency is remarkably improved, meanwhile, the continuity and stability of the production line are kept, and the technical problem that in the related technology, sheet metal parts need to be manually placed is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut welding technical field, more specifically, the utility model relates to a kind of nut resistance welding machine of automatic feeding and discharging. BACKGROUND

[0002] The nut resistance welding machine of automatic feeding and discharging is a device specially designed for automatic welding of nuts, which is composed of a nut feeding mechanism, a sheet metal part feeding mechanism and a resistance welding machine body. The nut feeding mechanism automatically transports nuts to the welding position, the sheet metal part feeding mechanism is responsible for accurately positioning the sheet metal parts to be welded, and the resistance welding machine body performs the key welding operation. The three work together to realize the efficient and automatic production process of nut welding. As an indispensable fastener in mechanical equipment, nuts often need to be firmly connected with sheet metal parts through resistance welding technology. This welding method effectively solves the problem of stable fixation of ordinary nuts. The working principle of resistance welding technology is quite ingenious: it uses a spot welding machine to apply a certain pressure to the nut and sheet metal part, and then allows welding current to pass through the contact points of the two components. In this process, contact resistance is formed at the contact points, and a large amount of heat is generated when a large current passes through the contact points, thereby achieving instant heat fusion. However, in traditional resistance welding operations, the sheet metal parts and nuts are usually placed on the lower electrode block of the resistance welding machine by hand. This step not only consumes time and effort, but also seriously restricts the processing efficiency of mass production. In order to improve production efficiency, modern manufacturing industry is actively exploring automatic and intelligent resistance welding solutions to meet the needs of large-scale production. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a nut resistance welding machine of automatic feeding and discharging, which has the advantage of facilitating the movement of the position of the sheet metal.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a nut resistance welding machine of automatic feeding and discharging, comprising a support frame, a first rotating shaft is installed inside the support frame, and the two ends of the first rotating shaft penetrate into the inside of the support frame, a driven wheel is fixedly installed at one end of the first rotating shaft, a second rotating shaft is movably installed inside the support frame, and the two ends of the second rotating shaft penetrate into the inside of the support frame, a drive wheel is fixedly installed at one end of the second rotating shaft, and a transmission belt is transmissionally connected between the drive wheel and the driven wheel, a motor is fixedly installed on the front of the support frame, and the output end of the motor is fixedly connected with the second rotating shaft, and a conveying belt is transmissionally connected between the motor and the second rotating shaft.

[0005] As a preferred technical scheme of the utility model, the inside of the support frame is fixedly installed with a fixed frame, a sliding groove is formed in the inside of the fixed frame, a sleeve block is movably installed in the inside of the sliding groove, a bidirectional screw rod is threadedly sleeved in the inside of the sleeve block, and the two ends of the bidirectional screw rod penetrate into the inside of the fixed frame.

[0006] A moving block is fixedly installed on the top of the sleeve block, a second moving plate is fixedly installed on one end of the moving block, an extension rod is fixedly installed on the inner side of the second moving plate, a limiting plate is fixedly installed on one end of the extension rod, a spring is fixedly installed between the limiting plate and the second moving plate, a fixed support is fixedly installed on the top of the support frame, and a welding assembly is fixedly installed in the inside of the fixed support.

[0007] As a preferred technical scheme of the utility model, the welding assembly is fixedly installed in the inside of the fixed support, the welding assembly comprises a first air cylinder fixedly installed in the inside of the fixed support, and an electric resistance welding machine is fixedly installed on the output end of the first air cylinder.

[0008] As a preferred technical scheme of the utility model, the moving assembly is fixedly installed on the top of the support frame, the moving assembly comprises a support frame fixedly installed on the top of the support frame, a sliding block is movably installed in the inside of the support frame, a third air cylinder is fixedly installed between the sliding block and the inside of the support frame, a second air cylinder is fixedly installed on the bottom of the sliding block, and a first moving plate is installed on the output end of the second air cylinder.

[0009] As a preferred technical scheme of the utility model, the bottom of the support frame is fixedly installed with a support plate, and a connecting plate is fixedly installed between the two support plates.

[0010] As a preferred technical scheme of the utility model, reinforcing ribs are fixedly installed between the support plate and the connecting plate, and the reinforcing ribs are triangular in shape.

[0011] As a preferred technical scheme of the utility model, a fixed seat is fixedly installed on the outer side of the support plate, a fixed block is movably installed in the inside of the fixed seat, and a tool box is fixedly installed on the back of the fixed block.

[0012] As a preferred technical scheme of the utility model, a support seat is fixedly installed on the front of the support frame, and the inside of the support seat is U-shaped in shape.

[0013] As a preferred technical scheme of the utility model, an antiskid pad is fixedly installed on the inner side of the limiting plate, and the antiskid pad is made of rubber material.

[0014] As a preferred technical scheme of the utility model, the inner diameter value of the fixed seat is equal to the outer diameter value of the fixed block, and the fixed block has a light surface inside.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] 1、 the utility model discloses a resistance welding machine compared with the traditional resistance welding machine, the resistance welding machine is driven to rotate through the cooperation between transmission belt, driving wheel and driven wheel, and the resistance welding machine realizes the efficient and automatic conveying of the sheet metal part through the transport belt, the transport belt can continuously and stably move the sheet metal part according to the preset rhythm and speed, which significantly improves the production efficiency, and maintains the continuity and stability of the production line, which greatly reduces the labor intensity of traditional manual handling, so that the operator can focus more on other tasks, in addition, the combination of the transport belt and the positioning device ensures the accurate positioning of the sheet metal part, reduces the welding defects caused by position deviation, thereby improving the welding quality and the reliability of the product.

[0017] 2、 the utility model discloses a resistance welding machine compared with the traditional resistance welding machine, the resistance welding machine is driven to rotate through the cooperation between sleeve block and bidirectional screw rod, and the resistance welding machine is convenient for driving the limiting plate to limit and fix the sheet metal part, can ensure that the position of the sheet metal part on the conveying belt is stable, reduces the production interruption caused by vibration or deviation, thereby maintaining the continuity and stability of the production line and improving the overall production efficiency, and can also realize the accurate positioning of the sheet metal, ensure the accuracy and consistency of the welding point, reduce welding defects such as virtual welding and missed welding, guarantee the welding quality and the reliability of the product, in addition, the accidental movement of the sheet metal part during conveying can also be effectively prevented, the safety hidden danger is reduced, the safety of the operator is protected, and the risk of production accidents is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0019] Figure 1 It is a front perspective view of the utility model;

[0020] Figure 2 It is a back perspective view of the utility model;

[0021] Figure 3 It is a transport belt cross-section structure schematic view of the utility model;

[0022] Figure 4The fixed frame section structure schematic view of the utility model discloses

[0023] Figure 5 The utility model discloses Figure 4 The enlarged structure schematic view of A place in the middle

[0024] Figure 6 The utility model discloses a transport belt structure schematic view.

[0025] In the drawing: 1, support frame, 2, fixed support, 3, first air cylinder, 4, resistance welding machine, 5, support frame, 6, second air cylinder, 7, second moving plate, 8, transport belt, 9, first rotary shaft, 10, support plate, 11, fixed frame, 12, connecting plate, 13, reinforcing rib, 14, motor, 15, support seat, 16, moving block, 17, fixed seat, 18, fixed block, 19, tool box, 20, driving wheel, 21, transmission belt, 22, driven wheel, 23, sliding block, 24, third air cylinder, 25, second rotary shaft, 26, manual rocker, 27, first moving plate, 28, limit plate, 29, bidirectional screw rod, 30, cover block, 31, sliding slot, 32, telescopic link, 33, spring, 34, antiskid pad. DETAILED DESCRIPTION

[0026] The present disclosure will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, and not to limit the present disclosure.

[0027] In order to make the drawing simple, only the parts related to the disclosure are schematically shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is schematically shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0028] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-6 As shown, an embodiment of the present disclosure illustrates an automatic loading and unloading nut resistance welding machine, comprising a support frame 1, a first rotating shaft 9 installed inside the support frame 1, with both ends of the first rotating shaft 9 penetrating the interior of the support frame 1, a driven wheel 22 fixedly installed at one end of the first rotating shaft 9, a second rotating shaft 25 movably installed inside the support frame 1, with both ends of the second rotating shaft 25 penetrating the interior of the support frame 1, a drive wheel 20 fixedly installed at one end of the second rotating shaft 25, and a transmission belt 21 drivingly connecting the drive wheel 20 and the driven wheel 22, a motor 14 fixedly installed on the front of the support frame 1, and the output end of the motor 14 fixedly connected to the second rotating shaft 25, and a transport belt 8 drivingly connecting the motor 14 and the second rotating shaft 25.

[0033] The worker places the sheet metal part at the bottom of the conveyor belt 8, then turns on the motor 14. The motor 14 drives the second rotating shaft 25 to rotate inside the support frame 1. The second rotating shaft 25 drives the drive wheel 20 to rotate. The drive wheel 20 drives the transmission belt 21 and the driven wheel 22 to rotate. The driven wheel 22 drives the first rotating shaft 9 to rotate inside the support frame 1. The rotation of the motor 14 and the second rotating shaft 25 drives the conveyor belt 8 to rotate. After the conveyor belt 8 moves the top sheet metal part to the designated position, the motor 14 stops rotating, thus completing the movement of the sheet metal part to the designated position.

[0034] After the sheet metal part is placed at the bottom of the conveying belt 8, the motor 14 is started to drive the second rotating shaft 25 to rotate in the support frame 1, thereby driving the driving wheel 20, the transmission belt 21 and the driven wheel 22 to rotate in turn, wherein the rotation of the driven wheel 22 drives the first rotating shaft 9 to rotate in the support frame 1, and the first rotating shaft 9 and the second rotating shaft 25 jointly drive the conveying belt 8 to rotate. When the conveying belt 8 moves the top sheet metal part to the designated position, the motor 14 stops rotating, thereby successfully completing the precise displacement operation of the sheet metal part. Compared with the traditional resistance welding machine, the resistance welding machine drives the conveying belt 8 to rotate through the cooperation between the transmission belt 21, the driving wheel 20 and the driven wheel 22, and realizes efficient and automatic conveying of the sheet metal part through the conveying belt 8. The conveying belt 8 can continuously and stably move the sheet metal part at a preset rhythm and speed, significantly improving the production efficiency while maintaining the continuity and stability of the production line. This design greatly reduces the labor intensity of traditional manual handling, enabling the operator to focus more on other tasks. In addition, the combination of the conveying belt 8 and the positioning device ensures the precise positioning of the sheet metal part, reduces the welding defects caused by position deviation, and improves the welding quality and the reliability of the product.

[0035] The inside of the support frame 1 is fixedly provided with a fixed frame 11, the inside of the fixed frame 11 is provided with a sliding groove 31, the sliding groove 31 is movably provided with a sleeve block 30, the inside of the sleeve block 30 is threadedly provided with a bidirectional screw rod 29, the two ends of the bidirectional screw rod 29 penetrate into the inside of the fixed frame 11, one end of the bidirectional screw rod 29 is fixedly provided with a manual rocker 26, and the top of the support frame 1 is fixedly provided with a moving assembly.

[0036] The top of the sleeve block 30 is fixedly provided with a moving block 16, one end of the moving block 16 is fixedly provided with a first moving plate 27, the inner side of the first moving plate 27 is fixedly provided with an extension rod 32, one end of the extension rod 32 is fixedly provided with a limiting plate 28, the limiting plate 28 and the first moving plate 27 are fixedly provided with a spring 33, the top of the support frame 1 is fixedly provided with a fixed support 2, the inside of the fixed support 2 is fixedly provided with a welding assembly.

[0037] Before the staff needs to weld the sheet metal part and the nut, the sheet metal part needs to be fixed in position by limiting, the sheet metal part is moved to the specified position through the conveying belt 8, then the conveying belt 8 stops rotating, the hand-held manual rocker 26 is rotated by hand, the bidirectional screw rod 29 is rotated in the sleeve block 30 through the support frame 5, the sleeve block 30 drives the moving block 16 to slowly move along the outer surface of the sheet metal part in the sliding groove 31, the first moving plate 27 is synchronously moved by the moving block 16, the telescopic rod 32 and the spring 33 are synchronously moved by the first moving plate 27, the sheet metal part is fixed by limiting by the limiting plate 28 driven by the telescopic rod 32 and the spring 33, the nut is moved to the top of the sheet metal part by the moving assembly, then the sheet metal part and the nut are welded by the welding assembly, so that the sheet metal part is fixed in position by limiting on the top of the conveying belt 8.

[0038] Before the sheet metal part and the nut are welded, the sheet metal part needs to be fixed in position by limiting, the sheet metal part is accurately moved to the preset position through the conveying belt 8 in the equipment, then the conveying belt 8 stops rotating, the hand-held manual rocker 26 is rotated by hand, the bidirectional screw rod 29 is rotated in the sleeve block 30, the sleeve block 30 drives the moving block 16 to slowly move in the sliding groove 31, and travels along the outer surface of the sheet metal part, in this process, the first moving plate 27 is synchronously moved by the moving block 16, the telescopic rod 32 and the spring 33 are synchronously moved by the first moving plate 27, finally the limiting plate 28 is driven to realize the limiting fixing of the sheet metal part through the cooperation of the telescopic rod 32 and the spring 33, after fixing, the nut is moved to the top of the sheet metal part by the moving assembly, the welding assembly is started immediately, the sheet metal part and the nut are welded, the whole limiting fixing and welding process is efficiently completed on the top of the conveying belt 8, compared with the traditional resistance welding machine, the resistance welding machine can drive the limiting plate 28 to fix the sheet metal part by limiting through the cooperation between the sleeve block 30 and the bidirectional screw rod 29, can ensure the position stability of the sheet metal part on the conveying belt, reduce the production interruption caused by vibration or deviation, so as to maintain the continuity and stability of the production line, improve the overall production efficiency; can also realize the accurate positioning of the sheet metal, ensure the accuracy and consistency of the welding point, reduce welding defects such as virtual welding and missed welding, ensure the welding quality and the reliability of the product, in addition, it can effectively prevent the accidental movement of the sheet metal part during conveying, reduce the safety hidden danger, protect the safety of the operator, and reduce the risk of production accidents.

[0039] The welding assembly is fixedly installed in the inside of the fixed support 2, the welding assembly comprises a first air cylinder 3 fixedly installed in the inside of the fixed support 2, and the output end of the first air cylinder 3 is fixedly installed with a resistance welding machine 4.

[0040] After the staff moves the sheet metal part and the nut to the designated position, the first cylinder 3 is opened on the fixed support 2, the resistance welding machine 4 is lowered to the designated position through the first cylinder 3, and then the sheet metal part and the nut are welded through the resistance welding machine 4, thereby ensuring the welding efficiency of the sheet metal part and the nut.

[0041] The moving assembly is fixedly installed on the top of the support frame 1, and the moving assembly comprises a support frame 5 fixedly installed on the top of the support frame 1, a sliding block 23 movably installed in the support frame 5, a third cylinder 24 fixedly installed between the sliding block 23 and the support frame 5, a second cylinder 6 fixedly installed on the bottom of the sliding block 23, and a second moving plate 7 installed at the output end of the second cylinder 6.

[0042] After the staff moves the sheet metal part to the designated position, the nut is slowly moved to the sheet metal part, the height of the second moving plate 7 is adjusted through the second cylinder 6, the nut is adsorbed on the outer surface of the top of the support frame 1 through the electromagnet at the bottom of the second moving plate 7, the sliding block 23 is moved in the support frame 5 through the third cylinder 24 in the support frame 5, the second cylinder 6 and the second moving plate 7 are synchronously moved through the support frame 5, the nut is moved to the top of the sheet metal part through the second moving plate 7, and then the bolt is slowly placed on the top of the sheet metal part through the second cylinder 6. At this time, the electromagnet at the bottom of the second moving plate 7 is turned off, so that the electromagnet has no magnetic force, and finally the second moving plate 7 is slowly moved out through the support frame 5.

[0043] The bottom of the support frame 1 is fixedly installed with a support plate 10, and the connecting plate 12 is fixedly installed between the two support plates 10.

[0044] The cooperation between the support plate 10 and the connecting plate 12 facilitates the stable support of the support frame 1, ensures the stability of the resistance welding machine 4 during the welding of the sheet metal part and the nut, and improves the welding efficiency of the sheet metal part and the nut.

[0045] The support plate 10 and the connecting plate 12 are fixedly installed with a reinforcing rib 13, and the reinforcing rib 13 has a triangular shape.

[0046] The reinforcing rib 13 has a triangular shape between the support plate 10 and the connecting plate 12, and the triangular shape has stability characteristics, which ensures the stability of the support plate 10 and the connecting plate 12 during use and improves the use efficiency of the support plate 10 and the connecting plate 12.

[0047] The outer side of the support plate 10 is fixedly installed with a fixed seat 17, the fixed seat 17 is movably installed with a fixed block 18, and the back of the fixed block 18 is fixedly installed with a tool box 19.

[0048] The fixing block 18 is slowly placed into the inside of the fixing seat 17 through the tool box 19, the fixing block 18 is limited and fixed through the fixing seat 17, and the tool box 19 is increased, so that the staff can take and place the maintenance tools in the inside of the tool box 19.

[0049] The support seat 15 is fixedly installed on the front surface of the support frame 1, and the inside of the support seat 15 is in a U-shaped form.

[0050] The inside of the support seat 15 is in a U-shaped form on the front surface of the support frame 1, the motor 14 is stably supported through the support seat 15, the motor 14 is prevented from shaking during use, and the stability of the motor 14 during use is ensured.

[0051] The anti-skid pad 34 is made of rubber.

[0052] The anti-skid pad 34 is made of rubber and has good elasticity and strong grip, so that the sheet metal part is more stably limited and fixed, and the stability of the sheet metal part during welding is ensured.

[0053] The inside of the fixing block 18 has a smooth surface.

[0054] The inside of the fixing block 18 has a smooth surface, the fixing block 18 is slowly placed into the inside of the fixing seat 17 through the tool box 19, and the installation efficiency of the tool box 19 is ensured.

[0055] The working principle and use process of the utility model are as follows:

[0056] The staff places the sheet metal part at the bottom of the conveying belt 8, then starts the motor 14, drives the second rotating shaft 25 to rotate in the inside of the support frame 1 through the motor 14, drives the driving wheel 20 to rotate through the second rotating shaft 25, drives the transmission belt 21 and the driven wheel 22 to rotate through the driving wheel 20, drives the first rotating shaft 9 to rotate in the inside of the support frame 1 through the driven wheel 22, drives the conveying belt 8 to rotate through the rotation of the motor 14 and the second rotating shaft 25, moves the sheet metal part at the top to the designated position through the conveying belt 8, then the motor 14 stops rotating, and the sheet metal part is moved to the designated position.

[0057] The staff needs to limit and fix the sheet metal part in the specified position before welding the sheet metal part and the nut, move the sheet metal part to the specified position through the conveying belt 8, then stop the rotation of the conveying belt 8, rotate through the hand-held manual rocker 26, drive the bidirectional screw rod 29 to rotate in the sleeve block 30 through the supporting frame 5, make the sleeve block 30 drive the moving block 16 to slowly move the outer surface of the sheet metal part in the sliding groove 31, drive the first moving plate 27 to move synchronously through the moving block 16, drive the telescopic rod 32 and the spring 33 to move synchronously through the first moving plate 27, drive the limiting plate 28 to limit and fix the sheet metal part through the telescopic rod 32 and the spring 33, move the nut to the top of the sheet metal part through the moving assembly, then weld the sheet metal part and the nut through the welding assembly, so that the limiting and fixing of the sheet metal part on the top of the conveying belt 8 is completed.

[0058] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying that there is any such relationship or order between these entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0059] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit it, and although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and they should be covered in the scope of the claims of the present disclosure.

Claims

1. A nut resistance welding machine with automatic feeding and discharging, comprising a support frame (1), characterized in that: The inside of the support frame (1) is provided with a first rotating shaft (9), and the two ends of the first rotating shaft (9) penetrate into the inside of the support frame (1), one end of the first rotating shaft (9) is fixedly provided with a driven wheel (22), the inside of the support frame (1) is movably provided with a second rotating shaft (25), and the two ends of the second rotating shaft (25) penetrate into the inside of the support frame (1), one end of the second rotating shaft (25) is fixedly provided with a driving wheel (20), and the driving wheel (20) and the driven wheel (22) are transmissionally connected with a transmission belt (21), the front surface of the support frame (1) is fixedly provided with a motor (14), and the output end of the motor (14) is fixedly connected with the second rotating shaft (25), the motor (14) and the second rotating shaft (25) are transmissionally connected with a conveying belt (8); The inside of the support frame (1) is fixedly provided with a fixed frame (11), the inside of the fixed frame (11) is provided with a sliding groove (31), the inside of the sliding groove (31) is movably provided with a sleeve block (30), the inside of the sleeve block (30) is threadedly provided with a bidirectional screw rod (29), and the two ends of the bidirectional screw rod (29) penetrate into the inside of the fixed frame (11), one end of the bidirectional screw rod (29) is fixedly provided with a manual rocker (26), and the top of the support frame (1) is fixedly provided with a moving assembly; The top of the sleeve block (30) is fixedly provided with a moving block (16), one end of the moving block (16) is fixedly provided with a first moving plate (27), the inner side of the first moving plate (27) is fixedly provided with an extension rod (32), one end of the extension rod (32) is fixedly provided with a limiting plate (28), the limiting plate (28) and the first moving plate (27) are fixedly provided with a spring (33), and the top of the support frame (1) is fixedly provided with a fixed support (2), the inside of the fixed support (2) is fixedly provided with a welding assembly; The moving assembly is fixedly installed on the top of the support frame (1), and the moving assembly comprises a support frame (5) fixedly installed on the top of the support frame (1), a sliding block (23) movably installed in the support frame (5), a third air cylinder (24) fixedly installed between the sliding block (23) and the support frame (5), and a second air cylinder (6) fixedly installed at the bottom of the sliding block (23).

2. The nut resistance welding machine of claim 1, wherein: The welding assembly is fixedly installed in the inside of the fixed support (2), and the welding assembly comprises a first air cylinder (3) fixedly installed in the inside of the fixed support (2), and an electric resistance welding machine (4) fixedly installed at the output end of the first air cylinder (3).

3. The nut resistance welding machine of claim 1, wherein: The bottom of the support frame (1) is fixedly provided with a support plate (10), and the two support plates (10) are fixedly provided with a connecting plate (12).

4. The nut electric resistance welding machine of claim 3, wherein: The support plate (10) and the connecting plate (12) are fixedly provided with a reinforcing rib (13), and the reinforcing rib (13) is triangular in shape. The bottom of the support frame (1) is fixedly provided with a support plate (10), and the two support plates (10) are fixedly provided with a connecting plate (12). The support plate (10) and the connecting plate (12) are fixedly provided with a reinforcing rib (13), and the reinforcing rib (13) is triangular in shape.

5. The nut electric resistance welding machine of claim 3, wherein: The outer side of the support plate (10) is fixedly provided with a fixing base (17), the inner side of the fixing base (17) is movably provided with a fixing block (18), and the back of the fixing block (18) is fixedly provided with a tool box (19).

6. The nut electric resistance welding machine of claim 1, wherein: The front of the support frame (1) is fixedly provided with a support base (15), and the inner side of the support base (15) is in a U-shaped structure.

7. The nut electric resistance welding machine of claim 1, wherein: The inner side of the limiting plate (28) is fixedly provided with a non-slip pad (34), and the non-slip pad (34) is made of rubber.

8. The nut electric resistance welding machine of claim 5, wherein: The inner diameter of the fixing base (17) is equal to the outer diameter of the fixing block (18), and the inner side of the fixing block (18) is designed to have a smooth surface.

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