Spot welding machine with limiting structure

Abstract

The utility model discloses a spot welding machine with a limiting structure, which relates to the technical field of spot welding machines and comprises a support, a first threaded rod and a shielding plate, the top of the support is fixedly connected with a control box, one side of the control box is provided with a hydraulic rod, and the bottom of the hydraulic rod is fixedly connected with a spot welding machine body. The two ends of the first threaded rod are movably connected with the upper end face of the support through bearings. According to the spot welding machine with the limiting structure, a rack rod is driven to be meshed with a gear by pushing one set of clamping plates, the gear can drive the other set of rack rod and clamping plate to move, a workpiece is limited, and after limiting is completed, a second threaded rod is rotated to be in threaded transmission with a movable plate, so that the second threaded rod moves; and a second threaded rod can drive a rubber block to make contact with a rubber sleeve in a gear, friction force can be generated between the rubber sleeve and the rubber block, the gear cannot rotate, two sets of clamping plates are fixed, and at the moment, a workpiece can be welded.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding machines, in particular to a spot welding machine with a limiting structure. Background Art

[0002] The spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, the two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes. When the welding current flows from one electrode to the other, an instantaneous thermal weld is formed at the two contact resistance points, and the welding current instantly flows from the other electrode along the two workpieces to this electrode to form a loop, and will not damage the internal structure of the workpiece being welded.

[0003] A spot welder is a type of welding machine that can weld two groups of workpieces by contacting the workpiece to be welded through a welding head. When welding workpieces, existing spot welders need to limit and fix the workpieces to the welding table. When fixing, the bidirectional threaded rod needs to be rotated to transmit the thread to the two groups of clamps, so as to drive the two groups of clamps to move and limit the workpieces. This limiting method needs to be rotated multiple times during operation to limit the workpiece, which is not convenient for quickly limiting the workpiece. Utility Model Content

[0004] The utility model aims to provide a spot welding machine with a limiting structure to solve the problem that the existing spot welding machine is inconvenient to limit the workpiece as mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spot welding machine with a limiting structure, comprising: a spot welding machine with a limiting structure, comprising: a bracket, a first threaded rod and a shield, the top of the bracket is fixedly connected to a control box, one side of the control box is installed with a hydraulic rod, the bottom of the hydraulic rod is fixedly connected to the spot welding machine body,

[0006] The two ends of the first threaded rod are movably connected to the upper end surface of the bracket through bearings, the outer side of the first threaded rod is threadedly connected to a threaded block, a movable plate is welded and fixed to the top of the threaded block, the interior of the movable plate is movably connected to a gear through a rotating shaft, the outer side of the gear is meshedly connected to a rack rod, a splint is welded and fixed to one side of the rack rod, the interior of the gear is fixedly connected to a rubber sleeve, and the interior of the rubber sleeve is penetrated by a rubber block.

[0007] Preferably, a second threaded rod is fixedly connected to the bottom of the rubber block, and a sliding rod is penetrated and connected to a side of the movable plate away from the first threaded rod.

[0008] Preferably, a sliding groove matching the clamping plate is provided inside the movable plate, and the outer side of the clamping plate is slidably connected to the movable plate.

[0009] Preferably, both ends of the sliding rod are welded and fixed to the bracket, and the outer side of the second threaded rod is threadedly connected to the movable plate.

[0010] Preferably, the bottom of the baffle is movably connected to a side of the control box away from the hydraulic rod via a rotating shaft, a limiting rod is welded and fixed inside the baffle, and a support rod is connected through the outer side of the limiting rod.

[0011] Preferably, a pull rope is fixedly connected to the top of the support rod, one end of the pull rope is fixedly connected to a clamping block, and one side of the clamping block is fixedly connected to a first spring.

[0012] Preferably, one end of the first spring is fixedly connected to the baffle, one side of the card block is connected to the control box, one side of the support rod is connected to the second spring, the bottom of the second spring is connected to the baffle, and a card slot matching the card block is opened inside the control box.

[0013] Compared with the prior art, the spot welding machine with a limiting structure has the following beneficial effects: pushing one set of clamps drives the rack rod to engage with the gear, and the gear will drive another set of rack rods and clamps to move, thereby limiting the workpiece. After the limiting is completed, the second threaded rod is moved by rotating the second threaded rod and the movable plate for threaded transmission. The second threaded rod will drive the rubber block to contact the rubber sleeve inside the gear, and the rubber sleeve and the rubber block will generate friction, so that the gear cannot rotate, thereby completing the fixation of the two sets of clamps. At this time, the workpiece can be welded. In this way, the above operation can facilitate the limiting of the workpiece on the spot welding machine to prevent the workpiece from moving during processing.

[0014] 1. Spot welding machine is a kind of welding machine. It can contact the workpiece to be welded through the welding head and weld two groups of workpieces. When limiting the workpiece on the spot welding machine, a set of clamping plates is pushed to drive the rack rod to mesh with the gear. The gear will drive another set of rack rods and clamping plates to move to limit the workpiece. After the limiting is completed, the second threaded rod is rotated to perform threaded transmission with the moving plate to move the second threaded rod. The second threaded rod will drive the rubber block to contact the rubber sleeve inside the gear. The rubber sleeve and the rubber block will generate friction, so that the gear cannot rotate, and the two sets of clamping plates are fixed. At this time, the workpiece can be welded. In this way, the above operation can facilitate the limitation of the workpiece on the spot welding machine to prevent the workpiece from moving during processing.

[0015] 2. Spot welding machine is a kind of welding machine. It can contact the workpiece to be welded through the welding head and weld two groups of workpieces. When maintaining the inside of the spot welding machine, it can move downward by pulling the support rod. The limit rod will limit the support rod to prevent it from shifting. When the support rod moves, it will pull the block down by the pull rope. When the support rod moves, it will squeeze the second spring. When the block moves, it will squeeze the first spring at the bottom to shrink it. When the block moves out of the engagement with the control box, the shield can be rotated and unfolded. When the shield is fully rotated and unfolded, the support rod on one side will contact the control box to support the shield. At this time, the maintenance tool can be placed on the shield to facilitate the maintenance of the inside of the control box. In this way, the above operations can facilitate the maintenance of the spot welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-section of the utility model;

[0017] Figure 2 It is a right side view schematic diagram of the utility model;

[0018] Figure 3 It is a top view schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the front cross-section of the movable plate of the utility model;

[0020] Figure 5 It is an enlarged schematic diagram of A of the utility model;

[0021] Figure 6 It is a right side cross-sectional schematic diagram of the control box of the utility model.

[0022] In the figure: 1. bracket; 2. control box; 3. hydraulic rod; 4. spot welding machine body; 5. first threaded rod; 6. threaded block; 7. moving plate; 8. gear; 9. rack rod; 10. clamping plate; 11. rubber sleeve; 12. rubber block; 13. second threaded rod; 14. sliding rod; 15. shield; 16. limit rod; 17. support rod; 18. pull rope; 19. clamping block; 20. first spring; 21. second spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5The utility model provides a technical solution: a spot welding machine with a limiting structure, comprising: a bracket 1, a first threaded rod 5 and a shield 15, the top of the bracket 1 is fixedly connected to a control box 2, a hydraulic rod 3 is installed on one side of the control box 2, and the bottom of the hydraulic rod 3 is fixedly connected to a spot welding machine body 4,

[0025] The two ends of the first threaded rod 5 are movably connected to the upper end surface of the bracket 1 through bearings, the outer side of the first threaded rod 5 is threadedly connected with a threaded block 6, and a movable plate 7 is welded and fixed to the top of the threaded block 6. The interior of the movable plate 7 is movably connected with a gear 8 through a rotating shaft, and the outer side of the gear 8 is meshed with a rack rod 9, and a clamping plate 10 is welded and fixed on one side of the rack rod 9. The interior of the gear 8 is fixedly connected with a rubber sleeve 11, and the interior of the rubber sleeve 11 is penetrated and connected with a rubber block 12; the bottom of the rubber block 12 is fixedly connected with a second threaded rod 13, and the side of the movable plate 7 away from the first threaded rod 5 is penetrated and connected with a sliding rod 14; a sliding groove matching the clamping plate 10 is provided in the interior of the movable plate 7, and the outer side of the clamping plate 10 is slidably connected to the movable plate 7; the two ends of the sliding rod 14 are welded and fixed to the bracket 1, and the outer side of the second threaded rod 13 is threadedly connected to the movable plate 7, the gear 8 and the rack rod 9 constitute a meshing transmission structure, and the movable plate 7 and the second threaded rod 13 constitute a threaded transmission structure.

[0026] In specific implementation, the spot welding machine is a kind of welding machine, which can contact the workpiece to be welded through the welding head to weld two groups of workpieces. When limiting the workpiece on the spot welding machine, a group of clamping plates 10 are pushed to move. When the clamping plates 10 move, they will drive the rack rod 9 to mesh with the gear 8 and drive them to rotate. The gear 8 will drive another group of rack rods 9 and clamping plates 10 to move to limit the workpiece. After the limiting is completed, the second threaded rod 13 is rotated, and the second threaded rod 13 is threadedly driven with the moving plate 7 to move the second threaded rod 13. The second threaded rod 13 It will drive the rubber block 12 to contact the rubber sleeve 11 inside the gear 8. The rubber sleeve 11 and the rubber block 12 will generate friction, making the gear 8 unable to rotate, thereby completing the fixation of the two sets of clamping plates 10. At this time, the workpiece can be welded. When the welding position of the workpiece needs to be adjusted, the first threaded rod 5 can be rotated to make it threaded with the threaded block 6. The threaded block 6 will drive the movable plate 7 to move, and the welding position of the workpiece can be adjusted. The sliding rod 14 can guide and limit the movable plate 7. In this way, the above operation can facilitate the workpiece on the spot welding machine to limit the workpiece to prevent the workpiece from moving during processing.

[0027] See also Figure 1 , Figure 2 and Figure 6The bottom of the baffle 15 is movably connected to the side of the control box 2 away from the hydraulic rod 3 through a rotating shaft. A limit rod 16 is welded and fixed inside the baffle 15, and a support rod 17 is connected to the outside of the limit rod 16; a pull rope 18 is fixedly connected to the top of the support rod 17, and a block 19 is fixedly connected to one end of the pull rope 18, and a first spring 20 is fixedly connected to one side of the block 19; one end of the first spring 20 is fixedly connected to the baffle 15, and one side of the block 19 is connected to the control box 2, and a second spring 21 is connected to one side of the support rod 17, and the bottom of the second spring 21 is connected to the baffle 15, and a card slot matching the block 19 is opened inside the control box 2, the limit rod 16 and the support rod 17 constitute a sliding structure, and the block 19 and the control box 2 constitute a clamping structure.

[0028] In specific implementation, the spot welding machine is a kind of welding machine, which can contact the workpiece to be welded through the welding head to weld two groups of workpieces. When maintaining the inside of the spot welding machine, the support rod 17 is pulled down, and the limit rod 16 will limit the support rod 17 to prevent it from deflecting. When the support rod 17 moves, the block 19 is pulled down by the pull rope 18. When the support rod 17 moves, it squeezes the second spring 21. When the block 19 moves, it squeezes the first spring 20 at the bottom to shrink it. When the block 19 moves out of the engagement with the control box 2, the shield 15 can be rotated to unfold. When the shield 15 is fully rotated and unfolded, When opened, the support rod 17 on one side will contact the control box 2 to support the shield 15. At this time, the maintenance tool can be placed on the shield 15 to facilitate the maintenance of the interior of the control box 2. After the maintenance is completed, the shield 15 is rotated by pushing it. When the inclined surface of the block 19 on one side of the shield 15 contacts the control box 2, the control box 2 will move and squeeze and contract the first spring 20 on one side. When the block 19 contacts the slot inside the control box 2, the first spring 20 will reset and push the block 19 to move and engage with the control box 2 to complete the closure of the control box 2. The above operation can facilitate the maintenance of the spot welding machine.

[0029] To sum up: when using a spot welding machine with a limiting structure, first place the workpiece to be welded on the platform on the top of the bracket 1, then start the spot welding machine body 4 and the hydraulic rod 3, the hydraulic rod 3 will drive the spot welding machine body 4 to move downward, when the spot welding machine body 4 contacts the workpiece, it will generate high temperature, so that the two groups of workpieces will be thermally welded, this is the characteristic of the spot welding machine with a limiting structure, and the content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spot welding machine with a limiting structure, comprising: A bracket (1), a first threaded rod (5) and a shield (15), wherein the top of the bracket (1) is fixedly connected to a control box (2), a hydraulic rod (3) is installed on one side of the control box (2), and the bottom of the hydraulic rod (3) is fixedly connected to a spot welding machine body (4), It is characterized by: The two ends of the first threaded rod (5) are movably connected to the upper end surface of the bracket (1) through bearings; the outer side of the first threaded rod (5) is threadedly connected to a threaded block (6); a movable plate (7) is welded and fixed to the top of the threaded block (6); the interior of the movable plate (7) is movably connected to a gear (8) through a rotating shaft; the outer side of the gear (8) is meshingly connected to a rack rod (9); a clamping plate (10) is welded and fixed to one side of the rack rod (9); the interior of the gear (8) is fixedly connected to a rubber sleeve (11); and the interior of the rubber sleeve (11) is penetrated and connected to a rubber block (12).

2. A spot welding machine with a limiting structure according to claim 1, characterized in that: The bottom of the rubber block (12) is fixedly connected to a second threaded rod (13), and a sliding rod (14) is penetrated and connected to a side of the movable plate (7) away from the first threaded rod (5).

3. A spot welding machine with a limiting structure according to claim 2, characterized in that: The interior of the movable plate (7) is provided with a sliding groove matching the clamping plate (10), and the outer side of the clamping plate (10) is slidably connected to the movable plate (7).

4. The spot welding machine with a limiting structure according to claim 3, characterized in that: The two ends of the sliding rod (14) are fixedly welded to the bracket (1), and the outer side of the second threaded rod (13) is threadedly connected to the movable plate (7).

5. The spot welding machine with a limiting structure according to claim 1, characterized in that: The bottom of the shield (15) is movably connected to a side of the control box (2) away from the hydraulic rod (3) via a rotating shaft, a limiting rod (16) is welded and fixed inside the shield (15), and a support rod (17) is connected to the outside of the limiting rod (16).

6. The spot welding machine with a limiting structure according to claim 5, characterized in that: A pull rope (18) is fixedly connected to the top of the support rod (17), one end of the pull rope (18) is fixedly connected to a clamping block (19), and one side of the clamping block (19) is fixedly connected to a first spring (20).

7. The spot welding machine with a limiting structure according to claim 6, characterized in that: One end of the first spring (20) is fixedly connected to the baffle (15), one side of the clamping block (19) is connected to the control box (2), one side of the support rod (17) is connected to the second spring (21), the bottom of the second spring (21) is connected to the baffle (15), and a clamping groove matching the clamping block (19) is provided inside the control box (2).

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