Hardware welding device

Abstract

The invention relates to the technical field of welding, and discloses a hardware welding device which comprises a welding box, an operation opening is formed in the front end of the welding box, a sealing door plate is hinged to the operation opening, a welding assembly is fixedly installed at the top end in the welding box, and an auxiliary assembly is fixedly installed at the bottom end in the welding box; the welding assembly comprises a first rectangular driving box, the first rectangular driving box is fixedly installed at the top end of the interior of the welding box, a first motor is fixedly installed on the left end face of the first rectangular driving box, and the right end of an output shaft of the first motor penetrates through the first rectangular driving box, extends into the first rectangular driving box and is fixedly connected with a horizontal lead screw. The other end of the horizontal lead screw is rotationally connected with the right end face in the first rectangular driving box. According to the hardware welding device, hardware to be welded can be automatically positioned and welded, all-directional welding can be conveniently conducted on the connecting position of the hardware, then the structural strength after welding is improved, and the environment-friendly effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a hardware welding device. Background Art

[0002] Hardware products are widely used. Traditional hardware products, also known as "small hardware", refer to five metals: gold, silver, copper, iron and tin. They can be made into works of art or metal devices such as knives and swords through artificial processing.

[0003] According to the actual demand for hardware products, hardware can be processed into hardware products of various shapes by welding. When the existing welding equipment welds the hardware, it is difficult to automatically adjust the angle of the welding end during welding, which makes it difficult for the welding gun to automatically weld the welding end in all directions. Manual adjustment is required, which is time-consuming and labor-intensive. In addition, the smoke and waste slag generated during welding will also affect the welding. Therefore, a hardware welding device is proposed. Summary of the invention

[0004] The invention provides a hardware welding device which solves the problems in the background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hardware welding device comprises a welding box, wherein an operation port is provided at the front end of the welding box, and a sealing door panel is hingedly installed at the operation port, a welding assembly is fixedly installed at the top end of the welding box, and an auxiliary assembly is fixedly installed at the bottom end of the welding box;

[0007] Among them, the welding assembly includes a first rectangular drive box, which is fixedly installed at the top end of the welding box, and a first motor is fixedly installed on the left end face of the first rectangular drive box. The right end of the first motor output shaft passes through the first rectangular drive box and extends to the inside of the first rectangular drive box, and is fixedly connected with a horizontal screw rod, and the other end of the horizontal screw rod is rotatably connected to the right end face of the inside of the first rectangular drive box. The lower end of the first rectangular drive box is open, and a first rectangular nut block is threadedly mounted on the horizontal screw rod, and the lower end of the first rectangular nut block passes through the open lower end of the first rectangular drive box and extends to the bottom of the first rectangular drive box, and a cylinder is fixedly installed on the lower end of the cylinder output end, and a welding gun is fixedly installed on the lower end of the cylinder output end.

[0008] Preferably, the side end surface of the first rectangular nut block is slidably fitted with the inner wall of the first rectangular driving box in the horizontal direction.

[0009] Preferably, the auxiliary component includes a second rectangular drive box, a second motor is fixedly installed on the left end of the second rectangular drive box, the right end of the second motor output shaft passes through the left end of the second rectangular drive box and extends to the interior of the second rectangular drive box, and is fixedly connected with a first bidirectional screw rod, the other end of the first bidirectional screw rod is rotatably connected to the right end surface inside the second rectangular drive box, the upper end of the second rectangular drive box is open, and two rectangular mounting side blocks are symmetrically threaded on the first bidirectional screw rod, the upper ends of the rectangular mounting side blocks pass through the opening of the upper end of the second rectangular drive box and extend to above the second rectangular drive box.

[0010] Preferably, the side end surface of the rectangular mounting side block is slidably fitted with the inner wall of the second rectangular driving box in the horizontal direction.

[0011] Preferably, a third motor is fixedly installed at one end of the top of the two rectangular mounting side blocks away from each other, the output shaft of the third motor passes through the rectangular mounting side block, and is fixedly connected to a third rectangular drive box, and the two third rectangular drive boxes are located between the two rectangular mounting side blocks.

[0012] Preferably, a fourth motor is fixedly mounted on the upper end surface of the front end portion of the third rectangular drive box, the lower end of the fourth motor output shaft passes through the upper end of the third rectangular drive box and extends into the interior of the third rectangular drive box, and is mechanically linked with a second bidirectional screw rod arranged along the front-to-back direction, the front and rear ends of the second bidirectional screw rod are respectively rotatably connected to the front and rear walls inside the third rectangular drive box, two clamping blocks are symmetrically threadedly sleeved on the second bidirectional screw rod, the two third rectangular drive boxes are both openly arranged at one end close to each other, and the clamping blocks pass through the open part of the third rectangular drive box;

[0013] The clamp block includes a base block and a movable block, the base block is connected to the second bidirectional screw rod, a connecting column is provided at the end of the base block, a connecting hole is provided at one end of the movable block, the connecting column is inserted into the connecting hole so that the movable block can rotate around the connecting column; the base block and the movable block are also connected by an elastic component;

[0014] The elastic component includes an elastic bar, an adjusting column and an adjusting nut. The elastic bar is a linear structure. The elastic bar has elasticity so that it can be bent, and the elastic bar has toughness so that it can return to a linear structure after bending. A through hole is provided on the base block, and one end of the elastic bar passes through the through hole. An adjusting hole is provided on the side of the base block, and the adjusting hole is connected to the through hole. The adjusting column passes through the adjusting hole and the end of the adjusting column is connected to the end of the elastic bar. The adjusting nut is screwed on the adjusting column. The width of the adjusting hole is greater than the width of the adjusting column, so that the adjusting column can move in the adjusting hole after the adjusting nut is loosened. The elastic bar is arranged in parallel with the connecting column, and a socket is provided at the end of the movable block, and the end of the elastic bar is inserted into the socket.

[0015] Preferably, a first bevel gear is fixedly mounted on the lower end of the fourth motor output shaft, a second bevel gear is fixedly mounted on the front end of the second bidirectional screw, and the first bevel gear is meshed with the second bevel gear box.

[0016] Preferably, the side end surface of the clamping block is slidably fitted with the inner wall of the third rectangular driving box along the front-to-back direction.

[0017] Preferably, a smoking box is fixedly installed in the middle of the upper end surface of the second rectangular driving box, an activated carbon filter is fixedly arranged inside the smoking box, and a plurality of smoke inlet holes are evenly opened on the upper end, the smoking box is located below the third rectangular driving box, and a connecting pipe is fixedly connected to the rear end of the smoking box, the other end of the connecting pipe passes through the rear end of the welding box and the top of the welding box in sequence, and extends to the interior of the welding box, and is fixedly connected to a jet plate, and a plurality of jet heads are evenly fixedly connected to the lower end of the jet plate, and a circulating pump is fixedly installed on the connecting pipe and located on the upper end surface of the welding box.

[0018] The beneficial effects of the present invention are:

[0019] 1. This hardware welding device can start the first motor, which can drive the horizontal screw rod to rotate, and then drive the first rectangular nut block to move horizontally, and then drive the horizontal position of the welding gun to automatically adjust. By starting the cylinder, the cylinder can drive the welding gun to move downward, and the downward-moving welding gun can contact the welding position of the hardware, and start the welding gun, so that the welding gun can weld the hardware.

[0020] 2. This hardware welding device can place the hardware to be welded between the two clamping blocks on the same third rectangular drive box, and then start the fourth motor. The fourth motor can drive the second bidirectional screw to rotate through the first bevel gear and the second bevel gear, and then drive the two clamping blocks thereon to move toward each other, so as to clamp and fix the hardware. By starting the first motor, the first motor can drive the horizontal screw to rotate, and then drive the first rectangular nut block to move horizontally, and then drive the horizontal position of the welding gun to automatically adjust. By starting the cylinder, the cylinder can drive the welding gun to move downward, and the downwardly moved welding gun can contact the welding position of the hardware, and start the welding gun, so that the welding gun can weld the hardware. Through the above design, the automatic positioning of the hardware to be welded can be achieved.

[0021] 3. This hardware welding device, by starting the third motor, can drive the third rectangular drive box to rotate, thereby realizing automatic adjustment of the angle of the hardware fixed on the third rectangular drive box, thereby facilitating 360° welding of the hardware connection position, thereby improving the structural strength after welding.

[0022] 4. When welding, this type of hardware welding device can start the circulation pump to suck the smoke generated by welding into the smoke box through the smoke inlet hole, and then pass through the activated carbon filter for adsorption and purification. The treated gas enters the jet plate through the connecting pipe, and finally blows to the hardware welding point through the jet head, so as to blow the welding slag generated by welding away from the welding end of the hardware, avoiding the influence of welding slag on the welding effect.

[0023] The present invention can realize automatic positioning and welding of hardware to be welded, and is convenient for all-round welding of the connection positions of the hardware, thereby improving the structural strength after welding and having an environmental protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic structural diagram of a hardware welding device.

[0025] Figure 2 The present invention is a schematic structural diagram of a welding assembly in a hardware welding device.

[0026] Figure 3 The present invention provides a schematic structural diagram of an auxiliary component in a hardware welding device.

[0027] Figure 4 The present invention is a schematic diagram of the partial structure of an auxiliary component in a hardware welding device.

[0028] Figure 5 The present invention is a bottom view of the local structure of an auxiliary component in a hardware welding device.

[0029] Figure 6 It is a side sectional view of a third rectangular drive box in a hardware welding device proposed by the present invention.

[0030] Figure 7 The present invention provides a schematic cross-sectional structural diagram of a clamping block in a hardware welding device.

[0031] Figure 8 The present invention provides a schematic cross-sectional structural diagram of a movable block of a clamping block in a hardware welding device after relative rotation with a base block.

[0032] Numbers in the figure: 1 welding box, 2 welding assembly, 3 auxiliary assembly;

[0033] 201 first rectangular drive box, 202 first motor, 203 horizontal screw rod, 204 rectangular nut block, 205 cylinder, 206 welding gun;

[0034] 301 second rectangular drive box, 302 second motor, 303 rectangular mounting side block, 304 third motor, 305 third rectangular drive box, 306 clamping block, 307 fourth motor, 308 smoking box, 309 jet plate, 310 connecting pipe, 311 circulating pump, 312 first bidirectional screw rod, 313 second bidirectional screw rod;

[0035] 401 base block, 402 movable block, 403 connecting column, 404 connecting hole, 405 elastic component, 406 elastic bar, 407 adjusting column, 408 adjusting nut, 409 through hole, 410 adjusting hole, 411 jack. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Reference Figure 1-2 A hardware welding device comprises a welding box 1, an operation port is provided at the front end of the welding box 1, and a sealing door panel is hingedly installed at the operation port, a welding assembly 2 is fixedly installed at the top end of the welding box 1, and an auxiliary assembly 3 is fixedly installed at the bottom end of the welding box 1;

[0038] The welding assembly 2 can be used to weld the hardware, the auxiliary assembly 3 can be used to position the hardware, and the waste generated by welding can be purified.

[0039] Among them, the welding assembly 2 includes a first rectangular drive box 201, which is fixedly installed at the top end of the welding box 1. A first motor 202 is fixedly installed on the left end face of the first rectangular drive box 201. The right end of the output shaft of the first motor 202 passes through the first rectangular drive box 201 and extends to the inside of the first rectangular drive box 201, and is fixedly connected with a horizontal screw rod 203. The other end of the horizontal screw rod 203 is rotatably connected to the right end face of the inside of the first rectangular drive box 201. The lower end of the first rectangular drive box 201 is open, and a rectangular nut block 204 is threadedly mounted on the horizontal screw rod 203. The lower end of the rectangular nut block 204 passes through the open lower end of the first rectangular drive box 201 and extends to the bottom of the first rectangular drive box 201. A cylinder 205 is fixedly installed at the lower end of the rectangular nut block 204, and a welding gun 206 is fixedly installed at the lower end of the output end of the cylinder 205.

[0040] By starting the first motor 202, the first motor 202 can drive the horizontal screw rod 203 to rotate, and then drive the rectangular nut block 204 to move horizontally, and then drive the horizontal position of the welding gun 206 to automatically adjust. By starting the cylinder 205, the cylinder 205 can drive the welding gun 206 to move downward, and the downward moving welding gun 206 can contact the welding position of the hardware, and start the welding gun 206, so that the welding gun 206 can weld the hardware.

[0041] In this embodiment, refer to Figure 3-6 The side end surface of the rectangular nut block 204 slides and fits with the inner wall of the first rectangular driving box 201 in the horizontal direction.

[0042] Through the above design, the stability of the automatic adjustment of the rectangular nut block in the horizontal direction can be improved.

[0043] The auxiliary component 3 includes a second rectangular drive box 301, a second motor 302 is fixedly installed on the left end of the second rectangular drive box 301, the right end of the output shaft of the second motor 302 passes through the left end of the second rectangular drive box 301 and extends to the inside of the second rectangular drive box 301, and is fixedly connected to a first bidirectional screw rod 312, the other end of the first bidirectional screw rod 312 is rotatably connected to the right end surface inside the second rectangular drive box 301, the upper end of the second rectangular drive box 301 is open, and two rectangular mounting side blocks 303 are symmetrically threaded on the first bidirectional screw rod 312, the upper ends of the rectangular mounting side blocks 303 pass through the upper opening of the second rectangular drive box 301 and extend to the top of the second rectangular drive box 301.

[0044] By starting the second motor 302, the second motor 302 can drive the first bidirectional screw rod 312 to rotate, and the rotating first bidirectional screw rod 312 can drive the two rectangular mounting side blocks 303 to move toward each other.

[0045] The side end surface of the rectangular mounting side block 303 is slidably fitted with the inner wall of the second rectangular driving box 301 along the horizontal direction.

[0046] Through the above design, the stability of the automatic adjustment of the rectangular mounting side block 303 in the horizontal direction can be improved.

[0047] A third motor 304 is fixedly installed at one end of the top of the two rectangular mounting side blocks 303 away from each other. The output shaft of the third motor 304 passes through the rectangular mounting side block 303 and is fixedly connected to a third rectangular drive box 305. The two third rectangular drive boxes 305 are located between the two rectangular mounting side blocks 303.

[0048] By starting the third motor 304, the third motor 304 can drive the third rectangular drive box 305 to rotate, thereby realizing automatic adjustment of the angle of the hardware fixed on the third rectangular drive box 305, thereby facilitating 360° welding of the hardware connection position, thereby improving the structural strength after welding.

[0049] A fourth motor 307 is fixedly installed on the upper end surface of the front end of the third rectangular drive box 305, and the lower end of the output shaft of the fourth motor 307 passes through the upper end of the third rectangular drive box 305 and extends to the inside of the third rectangular drive box 305, and is mechanically linked with a second bidirectional screw rod 313 arranged along the front and rear directions, and the front and rear ends of the second bidirectional screw rod 313 are respectively rotatably connected to the front and rear walls inside the third rectangular drive box 305, and two clamping blocks 306 are symmetrically threadedly mounted on the second bidirectional screw rod 313, and the two third rectangular drive boxes 305 are open at one end close to each other, and the clamping block 306 passes through the open part of the third rectangular drive box 305.

[0050] A first bevel gear is fixedly mounted on the lower end of the output shaft of the fourth motor 307 , a second bevel gear is fixedly mounted on the front end of the second bidirectional screw rod 313 , and the first bevel gear is meshed with the second bevel gear box.

[0051] The hardware to be welded can be placed between the two clamping blocks 306 on the same third rectangular drive box 305, and then the fourth motor 307 is started. The fourth motor 307 can drive the second bidirectional screw 313 to rotate through the first bevel gear and the second bevel gear, thereby driving the two clamping blocks 306 thereon to move toward each other, thereby clamping and fixing the hardware.

[0052] The side end surface of the clamp block 306 is slidably fitted along the front-rear direction with the inner wall of the third rectangular drive box 305. Through the above design, the stability of the clamp block 306 in the automatic driving in the front-rear direction can be improved.

[0053] The clamp block 306 includes a base block 401 and a movable block 402. The base block 401 is connected to the second bidirectional screw rod 313. A connecting column 403 is provided at the end of the base block 401. A connecting hole 404 is provided at one end of the movable block 402. The connecting column 403 is inserted into the connecting hole 404 so that the movable block 402 can rotate around the connecting column 403. The base block 401 and the movable block 402 are also connected by an elastic component 405.

[0054] The elastic component 405 includes an elastic bar 406, an adjusting column 407 and an adjusting nut 408. The elastic bar 406 is a linear structure. The elastic bar 406 has elasticity so that it can be bent, and the elastic bar 406 has toughness so that it can return to a linear structure after bending. A through hole 409 is opened on the base block 401, and one end of the elastic bar 406 passes through the through hole 409. An adjusting hole 410 is opened on the side of the base block 401, and the adjusting hole 410 is connected to the through hole 409. The adjusting column 407 is provided on the side of the base block 401. The end of the adjusting column 407 passes through the adjusting hole 410 and is connected to the end of the spring bar 406. The adjusting nut 408 is screwed on the adjusting column 407. The width of the adjusting hole 410 is greater than the width of the adjusting column 407, so that the adjusting column 407 can move in the adjusting hole 410 after the adjusting nut 408 is loosened. The spring bar 406 is arranged in parallel with the connecting column 403. The end of the movable block 402 is provided with a plug hole 411, and the end of the spring bar 406 is inserted into the plug hole 411.

[0055] The clamp is set to a two-section structure and the two parts can rotate relative to each other and return to their original position after rotation, so that when the clamp is clamping an object, it can adjust itself within a certain range according to the surface angle of the object to better adapt to the shape structure of the object, so that its contact area with the object is larger, the clamping is more stable, the welding is more stable, and it can protect the object.

[0056] The clamping block 306 includes a base block 401 and a movable block 402. The base block 401 is connected to the second bidirectional screw rod 313. There is no shaking or rotation between the base block 401 and the second bidirectional screw rod. The base block and the movable block are connected by a cylindrical connecting column so that the movable block 402 can rotate around the connecting column 403. A blocking ring with a larger diameter can be set at the end of the connecting column to prevent the base block and the movable block from falling off.

[0057] The spring bar 406 is a linear structure. The spring bar 406 is elastic so that it can be bent, and the spring bar 406 is tough so that it can return to a linear structure after being bent. The spring bar is made of metal, which makes it rigid and tough. The two ends of the spring bar are respectively connected to the base block and the movable block. Its rigid structure makes the base block and the movable block have a certain tightness, so that there is no rotation or shaking between the two when a small external force is applied. Its elastic structure makes the movable block rotate relative to the base block when an object applies a large reaction force to the movable block, and the spring bar is deformed; when the force disappears, the spring bar and the movable block can return to their original positions. The jack at the end of the movable block is set as a special-shaped structure, and the end of the jack close to the base block is a trumpet-shaped structure with a gradually increasing diameter. The setting of this structure makes it possible for the spring bar to have a movable space to produce deformation when the movable block rotates relative to the base block and the spring bar is deformed, so that the components will not get stuck.

[0058] The setting of the adjusting column and the adjusting nut makes the length of the spring bar inserted into the socket adjustable, so that the limiting force of the spring bar on the movable block can be adjusted. When targeting different objects, the movable block can obtain different limiting forces through the adjustment of this component to better clamp the object.

[0059] like Figure 7-8 As shown, the adjustment hole is connected to the through hole, the adjustment column and the spring bar are arranged perpendicularly, the adjustment hole has a large width, and the adjustment nut is locked on the side of the base block, so that the position of the adjustment column and the spring bar remains fixed under normal circumstances. When the position of the spring bar needs to be adjusted, the adjustment nut is loosened to allow the adjustment column to move in the adjustment hole. When the adjustment column moves to a suitable position, the adjustment nut is re-locked to fix the position of the adjustment column and the spring bar, thereby playing the role of limiting the force of the adjustment spring bar on the movable block.

[0060] Reference Figure 3-4 A smoking box 308 is fixedly installed in the middle of the upper end surface of the second rectangular driving box 301. An activated carbon filter is fixedly arranged inside the smoking box 308, and a plurality of smoke inlet holes are evenly opened on the upper end. The smoking box 308 is located below the third rectangular driving box 305. A connecting pipe 310 is fixedly connected to the rear end of the smoking box 308. The other end of the connecting pipe 310 passes through the rear end of the welding box 1 and the top of the welding box 1 in sequence, and extends to the inside of the welding box 1, and is fixedly connected to a jet plate 309. A plurality of jet heads are evenly fixedly connected to the lower end of the jet plate 309. A circulating pump 311 is fixedly installed on the connecting pipe 310 and located on the upper end surface of the welding box 1.

[0061] During welding, by starting the circulation pump 311, the fume generated by welding can be sucked into the fume box 308 through the smoke inlet hole, and then adsorbed and purified by the activated carbon filter. The treated gas enters the jet plate 309 through the connecting pipe 310, and finally blows to the welding place of the hardware through the jet head, so as to blow the welding slag generated by welding away from the welding end of the hardware, thereby avoiding the influence of the welding slag on the welding effect.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hardware welding device, characterized in that: The welding box (1) comprises an operation opening at the front end thereof, and a sealing door panel is hingedly mounted at the operation opening; a welding assembly (2) is fixedly mounted at the top end of the welding box (1); and an auxiliary assembly (3) is fixedly mounted at the bottom end of the welding box (1); The welding assembly (2) comprises a first rectangular drive box (201), the first rectangular drive box (201) is fixedly mounted on the top of the inside of the welding box (1), a first motor (202) is fixedly mounted on the left end surface of the first rectangular drive box (201), the right end of the output shaft of the first motor (202) passes through the first rectangular drive box (201) and extends into the inside of the first rectangular drive box (201), and the output shaft of the first motor (202) is connected to a horizontal screw rod (203), and the horizontal screw rod (203) is also One end is rotatably connected to the right end surface inside the first rectangular drive box (201); the lower end of the first rectangular drive box (201) is open; a rectangular nut block (204) is threadedly sleeved on the horizontal screw rod (203); the lower end of the rectangular nut block (204) passes through the open lower end of the first rectangular drive box (201) and extends to the bottom of the first rectangular drive box (201); a cylinder (205) is fixedly installed at the lower end of the rectangular nut block (204); and a welding gun (206) is fixedly installed at the lower end of the output end of the cylinder (205).

2. A hardware welding device according to claim 1, characterized in that: The side end surface of the rectangular nut block (204) is slidably fitted with the inner wall of the first rectangular drive box (201) in the horizontal direction.

3. A hardware welding device according to claim 2, characterized in that: The auxiliary component (3) comprises a second rectangular drive box (301), a second motor (302) is fixedly mounted on the left end of the second rectangular drive box (301), the right end of the output shaft of the second motor (302) passes through the left end of the second rectangular drive box (301) and extends into the interior of the second rectangular drive box (301), and is fixedly connected to a first bidirectional screw rod (312), the other end of the first bidirectional screw rod (312) is rotatably connected to the right end surface inside the second rectangular drive box (301), the upper end of the second rectangular drive box (301) is open, and two rectangular mounting side blocks (303) are symmetrically threadedly mounted on the first bidirectional screw rod (312), the upper ends of the rectangular mounting side blocks (303) pass through the upper opening of the second rectangular drive box (301) and extend to the top of the second rectangular drive box (301).

4. A hardware welding device according to claim 3, characterized in that: The side end surface of the rectangular mounting side block (303) is slidably fitted with the inner wall of the second rectangular driving box (301) in the horizontal direction.

5. A hardware welding device according to claim 4, characterized in that: A third motor (304) is fixedly mounted on one end of the top of the two rectangular mounting side blocks (303) away from each other, the output shaft of the third motor (304) passes through the rectangular mounting side block (303) and is fixedly connected to a third rectangular drive box (305), and the two third rectangular drive boxes (305) are located between the two rectangular mounting side blocks (303).

6. A hardware welding device according to claim 5, characterized in that: A fourth motor (307) is fixedly mounted on the upper end surface of the front end of the third rectangular drive box (305); the lower end of the output shaft of the fourth motor (307) passes through the upper end of the third rectangular drive box (305) and extends into the interior of the third rectangular drive box (305); and a second bidirectional screw rod (313) is mechanically linked and arranged along the front-to-back direction; the front and rear ends of the second bidirectional screw rod (313) are respectively rotatably connected to the front and rear walls inside the third rectangular drive box (305); two clamping blocks (306) are symmetrically threadedly sleeved on the second bidirectional screw rod (313); the two third rectangular drive boxes (305) are both openly arranged at one end close to each other, and the clamping blocks (306) pass through the open portion of the third rectangular drive box (305); The clamping block (306) comprises a base block (401) and a movable block (402); the base block (401) is connected to the second bidirectional screw rod (313); a connecting column (403) is provided at the end of the base block (401); a connecting hole (404) is provided at one end of the movable block (402); the connecting column (403) is inserted into the connecting hole (404) so ​​that the movable block (402) can rotate around the connecting column (403); the base block (401) and the movable block (402) are also connected via an elastic component (405); The elastic component (405) comprises an elastic bar (406), an adjusting column (407) and an adjusting nut (408); the elastic bar (406) is a linear structure; the elastic bar (406) is elastic so that it can be bent; and the elastic bar (406) is tough so that it can return to a linear structure after being bent; a through hole (409) is provided on the base block (401); one end of the elastic bar (406) passes through the through hole (409); an adjusting hole (410) is provided on the side of the base block (401); the adjusting hole (410) is connected to the through hole (409); the adjusting column (407) passes through the through hole (409); The adjusting hole (410) and the end of the adjusting column (407) are connected to the end of the elastic bar (406); the adjusting nut (408) is screwed on the adjusting column (407); the width of the adjusting hole (410) is greater than the width of the adjusting column (407), so that the adjusting column (407) can move in the adjusting hole (410) after the adjusting nut (408) is loosened; the elastic bar (406) is arranged in parallel with the connecting column (403); the end of the movable block (402) is provided with a plug hole (411), and the end of the elastic bar (406) is inserted into the plug hole (411).

7. A hardware welding device according to claim 6, characterized in that: A first bevel gear is fixedly sleeved on the lower end of the output shaft of the fourth motor (307), a second bevel gear is fixedly sleeved on the front end of the second bidirectional screw rod (313), and the first bevel gear is meshed with the second bevel gear box.

8. A hardware welding device according to claim 7, characterized in that: The side end surface of the clamping block (306) is slidably fitted with the inner wall of the third rectangular driving box (305) along the front-rear direction.

9. A hardware welding device according to claim 8, characterized in that: A smoking box (308) is fixedly installed at the middle position of the upper end surface of the second rectangular drive box (301), and an activated carbon filter is fixedly arranged inside the smoking box (308), and a plurality of smoke inlet holes are evenly opened at the upper end. The smoking box (308) is located below the third rectangular drive box (305), and the rear end of the smoking box (308) is fixedly connected to a connecting pipe (310), and the other end of the connecting pipe (310) passes through the rear end of the welding box (1) and the top end of the welding box (1) in sequence, and extends to the interior of the welding box (1), and is fixedly connected to an air injection plate (309).

10. A hardware welding device according to claim 9, characterized in that: The lower end of the jet plate (309) is evenly and fixedly connected with a plurality of jet heads, and a circulation pump (311) is fixedly installed on the connecting pipe (310) and located on the upper end surface of the welding box (1).

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