Auxiliary welding device for cold welding machine
By designing a cold welding machine auxiliary welding device with switchable rectangular and circular positioning mechanisms, the problem that existing cold welding machines can only clamp flat objects is solved, and stable clamping of objects of different shapes is achieved, improving the welding effect.
Patent Information
- Application Number
- CN202422216083.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Existing cold welding machines can only clamp objects with flat sides of the bottom. If objects with cylindrical bottom are clamped, they will easily loosen, affecting the welding effect.
An auxiliary welding device for cold welding machines is designed, including a workbench, a lifting table and a positioning mechanism. The positioning mechanism is switched through the translation assembly and the lifting cylinder, and a rectangular positioning mechanism and a circular positioning mechanism are provided, which are respectively used to clamp rectangular and cylindrical objects.
The applicability and clamping and fixing effect of auxiliary welding devices are improved, the impact of welding effects is reduced, and stable clamping of objects of different shapes is achieved.
Smart Images
Figure CN223057019U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cold welding machines, and more specifically, it relates to an auxiliary welding device for a cold welding machine. Background Art
[0002] A cold welding machine utilizes a charged capacitor to discharge and heat in an ultra-short time. The molten metal in a plasma state is metallurgically transferred to the surface layer of the workpiece. It is to melt a special welding wire onto the damaged part of the workpiece through the high heat energy generated by the instantaneous discharge of micro-electricity, and firmly weld it with the original base material. After welding, only a small amount of post-treatment such as grinding and polishing is required.
[0003] Currently, the existing cold welding machines include a welding box body and a welding torch. The welding box body is placed on a workbench, and the welding torch is plugged into the welding box body through a connecting wire. There are two opposing cylinders arranged on the workbench, and a clamping plate is fixed on the piston rod of the cylinder. When in use, an operator places the object to be welded between the two clamping plates, and the two cylinders are extended and retracted to clamp and fix the object to be welded.
[0004] However, the above existing structure can only clamp objects with flat surfaces on both sides of the bottom. If an object with a cylindrical bottom is clamped, it is likely to become loose, affecting the welding effect. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an auxiliary welding device for a cold welding machine, so as to solve the technical problem in the existing technology that only objects with flat surfaces on both sides of the bottom can be clamped, and if an object with a cylindrical bottom is clamped, it is likely to become loose, affecting the welding effect.
[0006] To achieve the above purpose, the technical solution adopted by the utility model is: to provide an auxiliary welding device for a cold welding machine, which includes a workbench on which a cold welding machine body is placed. An operation opening is formed on the workbench. Two moving platforms are arranged below the workbench. An elevating platform for rising into the operation opening is arranged above each moving platform. An elevating cylinder for driving the elevating platform to rise and fall is arranged on the moving platform. A translation assembly for driving the two moving platforms to switch and move below the operation opening is arranged below the workbench. A rectangular positioning mechanism for clamping and fixing an object with a rectangular bottom is arranged on one of the elevating platforms, and a circular positioning mechanism for clamping and fixing an object with a cylindrical or frustum-shaped bottom is arranged on the other elevating platform.
[0007] Combined with the above technical solution, in a possible implementation manner, the translation component includes a fixed plate, a translation motor, a rotating screw rod, and a guide rod. There are two fixed plates, which are fixed on both sides under the workbench. The translation motor is arranged outside one of the fixed plates. The rotating screw rod is rotatably connected between the two fixed plates, and the output shaft of the translation motor is coaxially fixed to the rotating screw rod. The guide rod is fixed between the two fixed plates and is parallel to the rotating screw rod. Both of the moving platforms are threadedly connected to the rotating screw rod and penetrated by the guide rod.
[0008] Combined with the above technical solution, in a possible implementation manner, the rectangular positioning mechanism includes rectangular clamping plates and a first driving component. There are two rectangular clamping plates, which are relatively slidably connected to the upper surface of the corresponding lifting platform. A receiving cavity is formed inside the lifting platform, and the first driving component is located in the receiving cavity. The first driving component is used to drive the two rectangular clamping plates to approach or separate from each other.
[0009] Combined with the above technical solution, in a possible implementation manner, the first driving component includes a driving screw rod, a driving motor, and a transmission component. The driving screw rod is rotatably connected inside the lifting platform, and the driving screw rod penetrates through the receiving cavity and the sliding grooves of the two rectangular clamping plates. The thread directions of the driving screw rod in the sliding grooves of the two rectangular clamping plates are opposite, and the two rectangular clamping plates are threadedly connected to the threads with corresponding thread directions of the driving screw rod. The driving motor is arranged in the receiving cavity, and the output shaft of the driving motor drives the driving screw rod to rotate through the transmission component.
[0010] Combined with the above technical solution, in a possible implementation manner, the transmission component is two gears. One of the gears is coaxially fixed to the driving screw rod, and the other gear is coaxially fixed to the output shaft of the driving motor. The two gears are meshed with each other.
[0011] Combined with the above technical solution, in a possible implementation manner, the circular positioning mechanism includes arc-shaped clamping plates and a second driving component. There are multiple arc-shaped clamping plates, which are slidably connected to the upper surface of the corresponding lifting platform, and the multiple arc-shaped clamping plates are evenly distributed in a circle. The second driving component is arranged under the corresponding lifting platform and is used to drive all the arc-shaped clamping plates to approach or separate from the center of the circle simultaneously.
[0012] Combined with the above technical solution, in a possible implementation, the second driving component includes a mounting frame, a driving cylinder, a pulling rope and a return spring. The mounting frame is fixed below the lifting table. A lifting groove is formed inside the lifting table. The driving cylinder is arranged inside the mounting frame, and the piston rod of the driving cylinder penetrates upward into the lifting groove. The number of the pulling ropes and the return springs is the same as that of the arc-shaped clamping plates. One end of the pulling rope is located in the lifting groove and fixed on the piston rod of the driving cylinder. The other end of the pulling rope penetrates into the sliding groove corresponding to the arc-shaped clamping plate and is fixed to the arc-shaped clamping plate. The return spring is arranged in the sliding groove corresponding to the arc-shaped clamping plate and is connected to the arc-shaped clamping plate.
[0013] Combined with the above technical solution, in a possible implementation, a plurality of guide wheels are arranged on the inner side wall of the lifting groove. The guide wheels are located at the positions where the corresponding pulling ropes bend when penetrating into the lifting groove, and the pulling ropes pass over the corresponding guide wheels.
[0014] The beneficial effects of the auxiliary welding device for cold welding machines provided by the present utility model are as follows: Compared with the prior art, the present utility model can switch the positioning mechanism according to the shape of the bottom of the object to be welded. The corresponding moving table is driven by the translation component to move below the working port. At this time, the corresponding lifting cylinder drives the lifting table to move upward into the working port, and the object to be welded is placed on the lifting table. Then, the object to be welded is clamped and fixed by the rectangular positioning mechanism or the circular positioning mechanism. Only one workbench is required to realize the switching of the two positioning mechanisms, which improves the applicability of the auxiliary welding device and the clamping and fixing effect on the object to be welded, and thus greatly reduces the influence on the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0016] Figure 1 It is a schematic structural diagram of the auxiliary welding device for cold welding machines provided by the embodiments of the present utility model;
[0017] Figure 2 It is a cross-sectional view of the rectangular positioning mechanism and the circular positioning mechanism provided by the embodiments of the present utility model;
[0018] Figure 3 It is a cross-sectional view of the rectangular positioning mechanism provided by the embodiments of the present utility model;
[0019] Figure 4A cross-sectional view of the circular positioning mechanism provided by the embodiment of the present utility model.
[0020] Among them, the reference numerals in the figure are as follows:
[0021] 1. Workbench; 11. Operation port; 2. Cold welding machine body; 3. Moving table; 31. Lifting cylinder; 4. Lifting table; 41. Accommodation cavity; 42. Lifting groove; 5. Translation assembly; 51. Fixed plate; 52. Translation motor; 53. Rotating screw; 54. Guide rod; 6. Rectangular positioning mechanism; 61. Rectangular clamping plate; 62. First driving assembly; 621. Driving screw; 622. Driving motor; 623. Transmission member; 7. Circular positioning mechanism; 71. Arc-shaped clamping plate; 72. Second driving assembly; 721. Mounting frame; 722. Driving cylinder; 723. Pulling rope; 724. Return spring; 725. Guide wheel. Detailed implementation manners
[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0023] Now, the auxiliary welding device for a cold welding machine provided by the present utility model will be described.
[0024] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides an auxiliary welding device for a cold welding machine, including a workbench 1 on which a cold welding machine body 2 is placed. An operation port 11 is opened on the workbench 1. Two moving tables 3 are arranged below the workbench 1. Lifting tables 4 for rising into the operation port 11 are arranged above the moving tables 3. Lifting cylinders 31 for driving the lifting tables 4 to lift are arranged on the moving tables 3; A translation assembly 5 for driving the two moving tables 3 to switch and move below the operation port 11 is arranged below the workbench 1; A rectangular positioning mechanism 6 for clamping and fixing an object with a rectangular bottom is arranged on one of the lifting tables 4, and a circular positioning mechanism 7 for clamping and fixing an object with a cylindrical or frustum-shaped bottom is arranged on the other lifting table 4.
[0025] The auxiliary welding device for a cold welding machine provided in this embodiment, compared with the prior art, can switch the positioning mechanism according to the shape of the bottom of the object to be welded. The translation component 5 drives the corresponding moving table 3 to move below the working port 11. At this time, the corresponding lifting cylinder 31 drives the lifting table 4 to move upward into the working port 11. The object to be welded is placed on the lifting table 4, and then the object to be welded is clamped and fixed by the rectangular positioning mechanism 6 or the circular positioning mechanism 7. Only one workbench 1 is required to realize the switching of the two positioning mechanisms, improving the applicability of the auxiliary welding device and the clamping and fixing effect on the object to be welded, and thus greatly reducing the influence on the welding effect.
[0026] As Figures 1 to 2 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:
[0027] The translation component 5 includes a fixed plate 51, a translation motor 52, a rotating screw 53 and a guide rod 54. There are two fixed plates 51, which are fixed on both sides below the workbench 1. The translation motor 52 is arranged outside one of the fixed plates 51. The rotating screw 53 is rotatably connected between the two fixed plates 51, and the output shaft of the translation motor 52 is coaxially fixed to the rotating screw 53; the guide rod 54 is fixed between the two fixed plates 51 and is parallel to the rotating screw 53; both moving tables 3 are threadedly connected to the rotating screw 53 and are penetrated by the guide rod 54.
[0028] When it is necessary to switch the lifting table 4 located below the working port 11, the translation motor 52 is started to make the rotating screw 53 rotate. The rotating screw 53 drives the two moving tables 3 to slide simultaneously along the length direction of the guide rod 54, so that the corresponding lifting table 4 moves to directly below the working port 11, thereby improving the switching efficiency of the two positioning mechanisms.
[0029] As Figures 2 to 3 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:
[0030] The rectangular positioning mechanism 6 includes rectangular clamping plates 61 and a first driving component 62. There are two rectangular clamping plates 61, which are relatively slidably connected to the upper surface of the corresponding lifting table 4. A receiving cavity 41 is formed inside the lifting table 4, and the first driving component 62 is located in the receiving cavity 41. The first driving component 62 is used to drive the two rectangular clamping plates 61 to approach or move away from each other.
[0031] When clamping and fixing an object with a rectangular bottom, the object is placed on this lifting table 4. The first driving component 62 drives the two rectangular clamping plates 61 to approach simultaneously until the two rectangular clamping plates 61 clamp and fix the object, improving the clamping and fixing efficiency of the object with a rectangular bottom.
[0032] As Figure 3As shown in the figure, a specific implementation manner provided by the present utility model on the basis of the above-mentioned implementation manner is as follows:
[0033] The first driving assembly 62 includes a driving screw 621, a driving motor 622 and a transmission member 623. The driving screw 621 is rotatably connected inside the lifting table 4, and the driving screw 621 penetrates through the accommodating cavity 41 and the sliding grooves of the two rectangular clamping plates 61. The thread directions of the driving screw 621 located in the sliding grooves of the two rectangular clamping plates 61 are opposite, and the two driving screws 621 are threadedly connected to the threads with corresponding thread directions on the driving screw 621; the driving motor 622 is arranged in the accommodating cavity 41, and the output shaft of the driving motor 622 drives the driving screw 621 to rotate by means of the transmission member 623.
[0034] Further, the transmission member 623 is two gears, one of which is coaxially fixed on the driving screw 621, and the other is coaxially fixed on the output shaft of the driving motor 622, and the two gears are meshed with each other.
[0035] When clamping and fixing an object with a rectangular bottom, the object is placed on the lifting table 4, the driving motor 622 is started to drive the driving screw 621 to rotate through the two gears, and the driving screw 621 drives the two rectangular clamping plates 61 to approach each other in their respective sliding grooves until the two rectangular clamping plates 61 clamp and fix the object, improving the efficiency of the two rectangular clamping plates 61 approaching and separating from each other.
[0036] As Figure 2 and Figure 4 shown in the figure, a specific implementation manner provided by the present utility model on the basis of the above-mentioned implementation manner is as follows:
[0037] The circular positioning mechanism 7 includes an arc-shaped clamping plate 71 and a second driving assembly 72. There are a plurality of arc-shaped clamping plates 71 which are slidably connected to the upper surface of the corresponding lifting table 4, and the plurality of arc-shaped clamping plates 71 are evenly distributed in a circumferential manner; the second driving assembly 72 is arranged below the corresponding lifting table 4 and is used to drive all the arc-shaped clamping plates 71 to approach or move away from the center of the circle simultaneously.
[0038] When clamping and fixing an object with a cylindrical or frustum-shaped bottom, the object is placed on the lifting table 4, and all the arc-shaped clamping plates 71 are driven to approach the center of the circle by the second driving assembly 72 until all the arc-shaped clamping plates 71 clamp and fix the bottom of the object, improving the clamping and fixing efficiency of the object with a cylindrical or frustum-shaped bottom.
[0039] As Figure 4 shown in the figure, a specific implementation manner provided by the present utility model on the basis of the above-mentioned implementation manner is as follows:
[0040] The second driving component 72 includes a mounting bracket 721, a driving cylinder 722, a pulling rope 723, and a return spring 724. The mounting bracket 721 is fixed below the lifting table 4. A lifting groove 42 is formed inside the lifting table 4. The driving cylinder 722 is arranged inside the mounting bracket 721, and the piston rod of the driving cylinder 722 penetrates upward into the lifting groove 42. The number of the pulling ropes 723 and the return springs 724 is the same as that of the arc-shaped clamping plates 71. One end of the pulling rope 723 is located inside the lifting groove 42 and fixed on the piston rod of the driving cylinder 722. The other end of the pulling rope 723 penetrates into the sliding groove of the corresponding arc-shaped clamping plate 71 and is fixed to the arc-shaped clamping plate 71. The return spring 724 is arranged inside the sliding groove of the corresponding arc-shaped clamping plate 71 and is connected to the arc-shaped clamping plate 71.
[0041] When clamping and fixing an object with a cylindrical or frustum-shaped bottom, place the object on the lifting table 4, start the driving cylinder 722 to contract it. The piston rod of the driving cylinder 722 drives all the pulling ropes 723 to descend. The pulling ropes 723 pull the corresponding arc-shaped clamping plates 71 to slide in their respective sliding grooves, and the return springs 724 are compressed until all the arc-shaped clamping plates 71 clamp and fix the bottom of the object. When it is necessary to release the clamping and fixing of the object, start the driving cylinder 722 to extend it. At the same time, the return springs 724 drive the corresponding arc-shaped clamping plates 71 and the pulling ropes 723 to reset, improving the efficiency of all the arc-shaped clamping plates 71 moving closer to or away from the center of the circle simultaneously.
[0042] As Figure 4 shown, a specific embodiment provided by the present invention on the basis of the above embodiment is as follows:
[0043] A plurality of guide wheels 725 are arranged on the inner side wall of the lifting groove 42. The guide wheels 725 are located at the positions where the corresponding pulling ropes 723 bend when penetrating into the lifting groove 42, and the pulling ropes 723 pass over the corresponding guide wheels 725.
[0044] The arrangement of the guide wheels 725 can guide the bending parts of the pulling ropes 723 when the driving cylinder 722 expands and contracts, reducing the wear of the bending parts of the pulling ropes 723.
[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. An auxiliary welding device for a cold welding machine, comprising a workbench (1) on which a cold welding machine body (2) is placed, characterized in that, An operation opening (11) is provided on the workbench (1). Two moving platforms (3) are arranged below the workbench (1). Lifting platforms (4) for rising into the operation opening (11) are arranged above the moving platforms (3). Lifting cylinders (31) for driving the lifting platforms (4) to lift are arranged on the moving platforms (3). A translation assembly (5) for driving the two moving platforms (3) to switch and move below the operation opening (11) is arranged below the workbench (1). A rectangular positioning mechanism (6) for clamping and fixing an object with a rectangular bottom is arranged on one of the lifting platforms (4), and a circular positioning mechanism (7) for clamping and fixing an object with a cylindrical or frustum-shaped bottom is arranged on the other lifting platform (4).
2. The auxiliary welding device for a cold welding machine according to claim 1, characterized in that, The translation assembly (5) includes a fixing plate (51), a translation motor (52), a rotating screw rod (53) and a guide rod (54). There are two fixing plates (51) which are fixed on both sides below the workbench (1). The translation motor (52) is arranged outside one of the fixing plates (51). The rotating screw rod (53) is rotatably connected between the two fixing plates (51), and the output shaft of the translation motor (52) is coaxially fixed to the rotating screw rod (53). The guide rod (54) is fixed between the two fixing plates (51) and is parallel to the rotating screw rod (53). Both of the two moving platforms (3) are threadedly connected to the rotating screw rod (53) and are penetrated by the guide rod (54).
3. The auxiliary welding device for a cold welding machine according to claim 1, characterized in that, The rectangular positioning mechanism (6) includes rectangular clamping plates (61) and a first driving assembly (62). There are two rectangular clamping plates (61) which are slidably connected to each other on the upper surface of the corresponding lifting platform (4). A receiving cavity (41) is formed inside the lifting platform (4). The first driving assembly (62) is located in the receiving cavity (41), and the first driving assembly (62) is used for driving the two rectangular clamping plates (61) to approach or separate from each other.
4. The auxiliary welding device for a cold welding machine according to claim 3, characterized in that, The first driving assembly (62) includes a driving screw rod (621), a driving motor (622) and a transmission member (623). The driving screw rod (621) is rotatably connected inside the lifting platform (4), and the driving screw rod (621) penetrates through the receiving cavity (41) and the sliding grooves of the two rectangular clamping plates (61). The thread directions of the driving screw rod (621) in the sliding grooves of the two rectangular clamping plates (61) are opposite, and the two rectangular clamping plates (61) are threadedly connected to the threads with corresponding thread directions of the driving screw rod (621). The driving motor (622) is arranged in the receiving cavity (41), and the output shaft of the driving motor (622) drives the driving screw rod (621) to rotate by the transmission member (623).
5. The auxiliary welding device for a cold welding machine according to claim 4, characterized in that, The transmission member (623) is two gears. One gear is coaxially fixed on the driving screw rod (621), and the other gear is coaxially fixed on the output shaft of the driving motor (622). The two gears are meshed with each other.
6. The auxiliary welding device for a cold welding machine according to claim 1, characterized in that The circular positioning mechanism (7) includes arc-shaped clamping plates (71) and a second driving assembly (72). The arc-shaped clamping plates (71) are multiple and are slidably connected to the upper surface of the corresponding lifting table (4). The multiple arc-shaped clamping plates (71) are evenly distributed in a circle; the second driving assembly (72) is arranged below the corresponding lifting table (4) and is used to drive all the arc-shaped clamping plates (71) to approach or move away from the center of the circle simultaneously.
7. The auxiliary welding device for a cold welding machine according to claim 6, characterized in that, The second driving assembly (72) includes a mounting frame (721), a driving cylinder (722), a pulling rope (723) and a return spring (724). The mounting frame (721) is fixed below the lifting table (4). A lifting groove (42) is formed inside the lifting table (4). The driving cylinder (722) is arranged inside the mounting frame (721), and the piston rod of the driving cylinder (722) penetrates upward into the lifting groove (42); the number of the pulling ropes (723) and the return springs (724) is the same as that of the arc-shaped clamping plates (71). One end of the pulling rope (723) is located inside the lifting groove (42) and is fixed to the piston rod of the driving cylinder (722). The other end of the pulling rope (723) penetrates into the sliding groove of the corresponding arc-shaped clamping plate (71) and is fixed to the arc-shaped clamping plate (71); the return spring (724) is arranged inside the sliding groove of the corresponding arc-shaped clamping plate (71) and is connected to the arc-shaped clamping plate (71).
8. The auxiliary welding device for a cold welding machine according to claim 7, characterized in that, A plurality of guide wheels (725) are arranged on the inner side wall of the lifting groove (42). The guide wheels (725) are located at the position where the corresponding pulling rope (723) bends when penetrating into the lifting groove (42), and the pulling rope (723) passes over the corresponding guide wheels (725).