Feeding mechanism of resistance welding machine

Abstract

The utility model relates to the technical field of resistance welding processing equipment, and discloses a feeding mechanism of a resistance welding machine, which comprises a protection box, the front end of the protection box is provided with a movable door, the inner walls of the left side and the right side of the protection box are provided with second sliding chutes, and the left side and the right side of the movable door are fixedly connected with second sliding blocks. And the rear end of the second sliding block is fixedly connected with an extension spring, the extension spring is fixedly connected with the protection box, the inner wall of the middle section of the left side of the protection box is fixedly connected with an infrared sensor, and the inner walls of the left side and the right side of the bottom of the protection box are each provided with a first sliding groove. The cleaning plate is used for cleaning the surface of an object, the infrared sensor is used for detecting, the fan is used for cooling the object, the object can be taken out conveniently, the clamping plate, the first spring and the telescopic column are used for clamping the same object and an object with a special shape, the hydraulic cylinder, the fixing sleeve, the telescopic sleeve and the pressing plate are used for pressing different objects, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance welding processing equipment, in particular to a feeding mechanism of a resistance welding machine. Background Art

[0002] Resistance welding machine refers to a welding equipment that uses the principle of resistance heating for welding. Resistance welding machines can be divided into different types according to different uses and requirements. From the classification of welding methods, there are spot welding machines, seam welding machines, projection welding machines and butt welding machines; from the classification of electrode pressure forms, there are lever type, electric cam type, pneumatic type, hydraulic type and pneumatic and hydraulic combined type; from the classification of welding current types of resistance welding machines, there are single-phase industrial frequency welding machines, secondary rectifier welding machines, three-phase low-frequency welding machines, capacitor energy storage welding machines and inverter power supply welding machines. Resistance welding machines are mainly composed of main circuit parts, pressure transmission parts and control parts.

[0003] After searching, the existing Chinese patent announcement number is: CN211490064U, which provides a feeding device for a resistance spot welding machine. This patent uses the feeding mechanism and the picking mechanism to drive the clamping claw to move up and down through the electric telescopic rod, and drives the clamping claw to move left and right through the driving screw. In addition, there is an infrared sensor on the loading platform. When the infrared sensor detects the product, the picking clamping claw will pick up the material again and place it on the loading platform. The above three points are cyclically operated.

[0004] Although the above patent can facilitate the processing of objects, the above resistance spot welding machine feeding device still has the following problems: the objects are welded by the feeding mechanism and the feeding mechanism, and there is no guarantee that the surface of the workpiece is clean when the objects are welded, resulting in impurities being welded on the surface of the object during welding, affecting the quality of the object.

[0005] In view of the above problems, a feeding mechanism for a resistance welding machine is proposed. Utility Model Content

[0006] The utility model aims to provide a feeding mechanism for a resistance welding machine, which solves the problem that in the background technology, objects are welded by a feeding mechanism and a feeding mechanism, and the surface of the workpiece is not kept clean during welding, resulting in impurities being welded on the surface of the object during welding, thus affecting the quality of the object.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding mechanism of a resistance welding machine, comprising a protection box, a movable door is arranged at the front end of the protection box, second slide grooves are arranged on the inner walls on the left and right sides of the protection box, second sliders are fixedly connected to the left and right sides of the movable door, and the second slider is slidably connected to the inner wall of the second slide groove, a tension spring is fixedly connected to the rear end of the second slider, and the tension spring is fixedly connected to the protection box, an infrared sensor is fixedly connected to the inner wall of the left middle section of the protection box, first slide grooves are arranged on the inner walls on the left and right sides of the bottom of the protection box, a waste chip plate is fixedly connected to the rear end of the movable door, the bottom of the waste chip plate is fixedly connected to the first slider, and the first slider Slidingly connected to the first slide groove, the rear end of the movable door is fixedly connected to a fan, and the fan is electrically connected to the infrared sensor, the rear end of the protection box is fixedly connected to a second linear guide, the outer wall of the second linear guide is slidably connected to a second sliding block, the front end of the second sliding block is fixedly connected to a welding frame, the upper and lower ends of the welding frame are fixedly connected to electric welding heads, a clamping assembly is arranged inside the protection box, the front end of the clamping assembly is arranged at the first linear guide, the outer wall of the first linear guide is slidably connected to the first sliding block, a movable plate is fixedly connected between the first sliding blocks, the bottom of the movable plate is fixedly connected to a second spring distributed evenly, and the other end of the second spring is fixedly connected to a cleaning plate.

[0008] By adopting the above technical solution, when the first slider is stretched by the stretch spring, the first slider can be reset.

[0009] As a further description of the above technical solution: the clamping assembly includes an arch frame, which is fixedly connected to the opposite side of the second slider, the inner wall of the front end of the arch frame is fixedly connected to an L-shaped plate, the inner wall of the L-shaped plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a bearing plate, the inner wall of the front end of the arch frame is rotatably connected to a bidirectional threaded rod, the outer rings on both sides of the left and right sides of the bidirectional threaded rod are threadedly connected to nut pairs, and the first linear guide rail is fixedly connected to the front and rear ends of the bottom of the groove disk.

[0010] By adopting the above technical solution, a limiting rod passes through and slides between the two nut pairs to limit the nut pairs.

[0011] As a further description of the above technical solution: the outer ring at the middle end of the bidirectional threaded rod is fixedly connected to a limiting wheel, and the limiting wheel is meshingly connected to the bearing plate.

[0012] By adopting the above technical solution, the limiting wheel is driven to rotate by the bearing plate.

[0013] As a further description of the above technical solution: the front end of the nut pair is fixedly connected to a clamping plate, and the opposite side of the clamping plate is penetrated and fixedly connected to a first spring, and the other end of the first spring is fixedly connected to a telescopic column.

[0014] By adopting the above technical solution, two identical objects are clamped by the telescopic column and the first spring.

[0015] As a further description of the above technical solution: a fixed groove plate is fixedly connected to the bottom of the front end of the arch frame.

[0016] By adopting the above technical solution, the electric welding heads at the upper and lower ends can weld objects through the groove plate.

[0017] As a further description of the above technical solution: the front ends of the left and right sides of the top of the arch frame are fixedly connected with fixed plates, and the bottom of the left fixed plate is fixedly connected with a hydraulic cylinder.

[0018] By adopting the above technical solution, the hydraulic cylinder is fixed by the fixing plate.

[0019] As a further description of the above technical solution: the output end of the hydraulic cylinder is fixedly connected with a pressure plate, and the bottom of the fixed plate on the right side is fixedly connected with a fixing sleeve.

[0020] By adopting the above technical solution, the pressure plate is driven downward by the hydraulic cylinder to press the object, thereby facilitating the welding of different parts.

[0021] As a further description of the above technical solution: a telescopic rod is slidably connected inside the fixed sleeve, and the telescopic rod is fixedly connected to the pressing plate, and a groove disk is fixedly connected between the pressing plates.

[0022] By adopting the above technical solution, the groove plate is driven to move by the hydraulic cylinder, and the groove plate drives the telescopic rod to move.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] 1. The utility model provides a feeding mechanism for a resistance welding machine. First, the second linear guide rail and the second sliding block are used to drive the moving plate to move, so that the second spring and the cleaning plate clean the surface of the object, and the object is conveniently taken out by the stretching spring and the first sliding block. The infrared sensor is moved by the first sliding block for detection, and the object is cooled by the fan, so that the object can be taken out conveniently and the quality of welding can be guaranteed.

[0025] 2. The utility model provides a feeding mechanism of a resistance welding machine, which drives a bidirectional threaded rod to rotate through a motor, so that a nut pair, a clamping plate, a first spring and a telescopic column can clamp the same object and objects with special shapes, and press different objects through a hydraulic cylinder, a fixed sleeve, a telescopic sleeve and a pressing plate, and auxiliary pressing is performed through a groove disk to improve welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the first slider structure of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the arch frame of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the first linear guide rail of the utility model;

[0030] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the protection box of the utility model.

[0032] In the figure: 1, protection box; 2, moving door; 3, first slide; 4, second slide; 5, first slider; 6, second slider; 7, arch frame; 8, fixed plate; 9, L-shaped plate; 10, motor; 11, load-bearing plate; 12, two-way threaded rod; 13, limit wheel; 14, fixed groove plate; 15, nut pair; 16, clamping plate; 17, first spring; 18, telescopic column; 19, hydraulic cylinder; 20, fixed sleeve; 21, telescopic rod; 22, pressure plate; 23, groove disk; 24, first linear guide; 25, first sliding block; 26, moving plate; 27, second spring; 28, cleaning plate; 29, second linear guide; 30, second sliding block; 31, welding frame; 32, fan; 33, infrared sensor; 34, tension spring; 35, waste chip plate; 36, electric welding head. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0035] Combination Figure 1 The utility model discloses a feeding mechanism of a resistance welding machine, comprising a protection box 1, through which the safety of workers is ensured. A movable door 2 is arranged at the front end of the protection box 1, and second slide grooves 4 are arranged on the inner walls on both sides of the protection box 1.

[0036] Combination Figure 2 , Figure 5 and Figure 6The second slider 6 is fixedly connected to both sides of the movable door 2, and the second slider 6 is slidably connected to the inner wall of the second slide groove 4. The rear end of the second slider 6 is fixedly connected to a tension spring 34, and the tension spring 34 is fixedly connected to the protection box 1. The inner wall of the left middle section of the protection box 1 is fixedly connected to an infrared sensor 33. The movable door 2 is pulled forward by the handle, and the second slider 6 slides on the inner wall of the second slide groove 4. When the second slider 6 is pulled, the tension spring 34 begins to change, and the arch frame 7 is moved toward the outer wall. The arch frame 7 is detected by the infrared sensor 33. When the detection is completed, the fan 32 is started. The fan 32 is used to cool the welded workpiece for easy removal. The inner walls on both sides of the bottom of the protection box 1 are provided with first slide grooves 3. The rear end of the movable door 2 is fixedly connected with a waste plate 35. The bottoms of the left and right sides of the waste plate 35 are fixedly connected with first sliders 5, and the first sliders 5 are slidably connected with the first slide grooves 3. When the movable door 2 is pulled, the waste plate 35 is fixed with the movable plate 26, so that the first slider 5 at the bottom of the waste plate 35 slides on the inner wall of the first slide groove 3 to take out the waste plate 35. The rear end of the movable door 2 is fixedly connected with a fan 32, and the fan 32 is electrically connected with the infrared sensor 33. The infrared sensor 33 is connected, and the model is E2E-X2E1. The rear end of the protection box 1 is fixedly connected to the second linear guide 29. The second linear guide 29 has limit blocks on both sides to limit the second sliding block 30. The outer wall of the second linear guide 29 is slidably connected to the second sliding block 30. The front end of the second sliding block 30 is fixedly connected to the welding frame 31. The upper and lower ends of the welding frame 31 are fixedly connected to the welding head 36. The welding frame 31 is moved by the second linear guide 29 and the second sliding block 30, so that the welding head 36 of the welding frame 31 is moved to facilitate welding. The front end of the clamping assembly is provided with A first linear guide 24 is provided, and limit blocks on the left and right sides of the first linear guide 24 are used to limit the first sliding block 25. The first sliding block 25 is slidably connected to the outer wall of the first linear guide 24, and a moving plate 26 is fixedly connected between the first sliding blocks 25. A uniformly distributed second spring 27 is fixedly connected to the bottom of the moving plate 26, and a cleaning plate 28 is fixedly connected to the other end of the second spring 27. The moving plate 26 is driven to move by the first linear guide 24 and the first sliding block 25, and the position where the workpiece needs to be welded is cleaned by the second spring 27 and the cleaning plate 28 at the bottom of the moving plate 26 to facilitate welding.

[0037] Combination Figure 3 and Figure 4A clamping assembly is provided inside the protection box 1, and the clamping assembly includes an arch frame 7, which is made of metal to facilitate detection by the infrared sensor 33. The arch frame 7 is fixedly connected to the opposite side of the second slider 6, and an L-shaped plate 9 is fixedly connected to the inner wall of the front end of the arch frame 7. A motor 10 is fixedly connected to the inner wall of the L-shaped plate 9, and a bearing plate 11 is fixedly connected to the output end of the motor 10. A bidirectional threaded rod 12 is rotatably connected to the inner wall of the front end of the arch frame 7, and a nut pair 15 is threadedly connected to the outer rings of the left and right sides of the bidirectional threaded rod 12. The first linear guide 24 is fixed The two-way threaded rod 12 is connected to the front and rear ends of the bottom of the groove plate 23, and the outer ring of the middle end of the two-way threaded rod 12 is fixedly connected to the limiting wheel 13, and the limiting wheel 13 is meshed and connected with the bearing plate 11. The front end of the nut pair 15 is fixedly connected to the clamping plate 16, and the opposite side of the clamping plate 16 is penetrated and fixedly connected with the first spring 17. The other end of the first spring 17 is fixedly connected to the telescopic column 18. The two-way threaded rod 12 is driven to rotate by the motor 10, so that the two-way threaded rod 12 is rotated, and the two-way threaded rod 12 is rotated to drive the nut pairs 15 on both sides to move. The nut pair 15 is limited by the limiting wheel 13 in the middle, driving the clamping plate 16 to move, and the same objects and objects with special shapes are clamped by the clamping plate 16, the first spring 17 and the telescopic column 18. One end needs to be welded and the other end does not need to be welded. The bottom of the front end of the arch frame 7 is fixedly connected with a fixed groove plate 14, and the front ends of the left and right sides of the top of the arch frame 7 are fixedly connected with fixed plates 8. The bottom of the left fixed plate 8 is fixedly connected with a hydraulic cylinder 19, and the output end of the hydraulic cylinder 19 is fixedly connected with a pressure plate 22. A fixed sleeve 20 is fixedly connected to the bottom of the fixed plate 8, and a telescopic rod 21 is slidably connected inside the fixed sleeve 20, and the telescopic rod 21 is fixedly connected to the pressure plate 22, and a groove disk 23 is fixedly connected between the pressure plates 22. The pressure plate 22 is driven downward by the hydraulic cylinder 19, and the groove disk 23 is moved by the downward movement of the pressure plate 22, which drives the pressure plate 22 on the right side to move downward, so that the telescopic rod 21 slides inside the fixed sleeve 20, and the objects at the bottom of the groove disk 23 at the middle end can also be pressed.

[0038] Working principle: take the handle, move the movable door 2 to the front end, place the object on the upper end of the fixed groove plate 14, and drive the bidirectional threaded rod 12 to rotate through the motor 10, so that the bidirectional threaded rod 12 rotates, and the bidirectional threaded rod 12 rotates to drive the nut pairs 15 on both sides to move, and the nut pairs 15 are limited by the limiting wheel 13 to drive the clamping plate 16 to move. The same object can be clamped by the clamping plate 16, the first spring 17 and the telescopic column 18, and the object can be clamped. The same object does not need the upper pressure plate. 22 is squeezed, the pressure plate 22 is driven downward by the hydraulic cylinder 19, and the groove plate 23 is driven to move by the downward movement of the pressure plate 22, so that the right pressure plate 22 moves downward, so that the telescopic rod 21 slides inside the fixed sleeve 20, and the first springs 17 on both sides and the telescopic rod 18 squeeze the outer wall of the irregularly shaped object together, and the pressure plate 22 and the groove plate 21 at the upper end can press the two sides of the object tightly. When the handle is loosened, the tension spring 34 is reset, and the arch frame 7 is detected by the infrared sensor 33. When it is detected, the fan 32 is used to press the fixed groove plate 14. The impurities of the parts at the end are cleaned up, and the moving plate 26 is driven to move by the first linear guide 24 and the first sliding block 25. The position where the workpiece needs to be welded is cleaned by the second spring 27 and the cleaning plate 28 at the bottom of the moving plate 26 to facilitate welding. The welding frame 31 is moved by the second linear guide 29 and the second sliding block 30, so that the welding head 36 of the welding frame 31 is moved to facilitate welding. The moving door 2 is pulled forward by the handle, and the second sliding block 6 slides on the inner wall of the second slide groove 4. When the second sliding block 6 is pulled, the tension spring 34 begins to change, and the arch frame 7 moves toward the outer wall, and the arch frame 7 is detected by the infrared sensor 33. When the detection is detected, the fan 32 starts to start, and the welded workpiece is cooled by the fan 32 to facilitate removal. When the movable door 2 is pulled, the waste plate 35 is fixed to the movable plate 26, so that the first slider 5 at the bottom of the waste plate 35 slides on the inner wall of the first slide groove 3, the waste plate 35 is taken out, the workpiece is taken out, and the parts to be processed are placed inside, the handle is loosened, and the stretch spring 34 resets the movable door 2, and the impurities on the upper end of the fixed groove plate 14 are blown away by the fan 32 to facilitate processing.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a resistance welding machine, comprising a protection box (1), characterized in that: The front end of the protection box (1) is provided with a movable door (2), the inner walls on both sides of the left and right sides of the protection box (1) are provided with second slide grooves (4), the left and right sides of the movable door (2) are fixedly connected with second sliders (6), and the second sliders (6) are slidably connected to the inner walls of the second slide grooves (4), the rear end of the second slider (6) is fixedly connected with a tension spring (34), and the tension spring (34) is fixedly connected to the protection box (1), the inner wall of the left middle section of the protection box (1) is fixedly connected with an infrared sensor (33), the inner walls on both sides of the bottom of the protection box (1) are provided with first slide grooves (3), the rear end of the movable door (2) is fixedly connected with a waste plate (35), the bottoms of the left and right sides of the waste plate (35) are fixedly connected with first sliders (5), and the first sliders (5) are slidably connected to the first slide grooves (3), and the rear end of the movable door (2) is fixedly connected with a fan (32), and the fan (32) is electrically connected to the infrared sensor (33), the rear end of the protection box (1) is fixedly connected to a second linear guide rail (29), the outer wall of the second linear guide rail (29) is slidably connected to a second sliding block (30), the front end of the second sliding block (30) is fixedly connected to a welding frame (31), and the upper and lower ends of the welding frame (31) are fixedly connected to electric welding heads (36), a clamping assembly is arranged inside the protection box (1), the front end of the clamping assembly is arranged to a first linear guide rail (24), the outer wall of the first linear guide rail (24) is slidably connected to a first sliding block (25), a moving plate (26) is fixedly connected between the first sliding blocks (25), the bottom of the moving plate (26) is fixedly connected to a uniformly distributed second spring (27), and the other end of the second spring (27) is fixedly connected to a cleaning plate (28).

2. A feeding mechanism for a resistance welding machine according to claim 1, characterized in that: The clamping assembly comprises an arch frame (7), the arch frame (7) is fixedly connected to the opposite side of the second sliding block (6), the inner wall of the front end of the arch frame (7) is fixedly connected to an L-shaped plate (9), the inner wall of the L-shaped plate (9) is fixedly connected to a motor (10), the output end of the motor (10) is fixedly connected to a bearing plate (11), the inner wall of the front end of the arch frame (7) is rotatably connected to a bidirectional threaded rod (12), the outer rings of the left and right sides of the bidirectional threaded rod (12) are both threadedly connected to nut pairs (15), and the first linear guide rail (24) is fixedly connected to the front and rear ends of the bottom of the groove plate (23).

3. A feeding mechanism for a resistance welding machine according to claim 2, characterized in that: The outer ring at the middle end of the bidirectional threaded rod (12) is fixedly connected to a limiting wheel (13), and the limiting wheel (13) is meshingly connected to the bearing plate (11).

4. A feeding mechanism for a resistance welding machine according to claim 2, characterized in that: The front end of the nut pair (15) is fixedly connected to a clamping plate (16), and the opposite side of the clamping plate (16) is penetrated and fixedly connected to a first spring (17), and the other end of the first spring (17) is fixedly connected to a telescopic column (18).

5. The feeding mechanism of a resistance welding machine according to claim 2, characterized in that: A fixed groove plate (14) is fixedly connected to the bottom of the front end of the arch frame (7).

6. A feeding mechanism for a resistance welding machine according to claim 5, characterized in that: The front ends of the left and right sides of the top of the arch frame (7) are fixedly connected to fixed plates (8), and the bottom of the left fixed plate (8) is fixedly connected to a hydraulic cylinder (19).

7. A feeding mechanism for a resistance welding machine according to claim 6, characterized in that: The output end of the hydraulic cylinder (19) is fixedly connected to a pressure plate (22), and the bottom of the right fixed plate (8) is fixedly connected to a fixing sleeve (20).

8. A feeding mechanism for a resistance welding machine according to claim 7, characterized in that: A telescopic rod (21) is slidably connected inside the fixed sleeve (20), and the telescopic rod (21) is fixedly connected to a pressing plate (22), and a groove plate (23) is fixedly connected between the pressing plates (22).

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