A sheet metal welding device with a positioning function

Abstract

The present invention discloses a sheet metal welding device with a positioning function, including a panel and a fixing frame. The fixing frame is fixed on the upper end surface of the panel. Above the panel, movable plates are symmetrically arranged on the left and right. The front and rear ends of the lower end surface of the movable plate are symmetrically fixed with sliding rods, and the sliding rods are slidably connected to the panel. One end of a first spring is also fixed to the lower end surface of the movable plate. The sheet metal welding device with a positioning function adopts a deployable operating table structure, which can conveniently move the operating table outwards to avoid the welding mechanism from blocking the installation and fixation of the sheet metal parts. When the operating table is reset, through the transmission between the convex tooth plate and the gear, the position of the clamping plate can be adjusted. The clamping plate can drive the sheet metal parts to move until the sheet metal parts contact the convex strips, so as to realize the automatic positioning of the sheet metal parts and ensure that the distance between the welding surfaces of the two sheet metal parts is equal, thereby ensuring the welding quality of the sheet metal parts in the later stage.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal welding, and specifically relates to a sheet metal welding device with a positioning function. Background Art

[0002] Sheet metal welding processing is a process of welding multiple sheet metal parts together to achieve the processing purpose and increase their strength. It is an important part of China's manufacturing industry. During the sheet metal part welding process, in order to ensure the welding quality between two sheet metal parts, it is necessary to perform butt joint positioning on the welding positions of the sheet metal parts to ensure that the distances between the welding surfaces of the two sheet metal parts are equal, providing a basic guarantee for subsequent welding. However, the current position adjustment between two sheet metal parts is mainly manually positioned, with low accuracy. When the distances between the welding surfaces of the two sheet metal parts are inconsistent (i.e., when the sheet metal parts are tilted), it will affect the welding quality. Moreover, when installing and positioning two relatively large sheet metal parts, due to the limited distance between the operating table and the welding mechanism, it will hinder the loading of the sheet metal parts, and it is more inconvenient to adjust the excitation between relatively large sheet metal parts. Therefore, in view of the above problems, a sheet metal welding device with a positioning function is designed to better meet the actual use requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a sheet metal welding device with a positioning function to solve the problems of difficult positioning of the distance between sheet metal parts and inconvenient loading of relatively large sheet metal parts as proposed in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A sheet metal welding device with a positioning function, including a panel and a fixing frame. A fixing frame is fixed on the upper end surface of the panel. On both sides of the panel symmetrically above, there are movable plates. The front and rear ends of the lower end surface of the movable plate are symmetrically fixed with sliding rods, and the sliding rods are slidably connected to the panel. One end of a first spring is also fixed to the lower end surface of the movable plate, and the other end of the first spring is fixed to the panel. A convex tooth plate is vertically fixed on the upper end surface of the movable plate. A first cylinder is fixed on the upper end surface of the panel, and the output end of the first cylinder is fixed to an operating table. The operating table is arranged above the panel. A convex strip is slidably connected to the operating table. A first threaded rod is rotatably connected to the operating table through a bearing. A gear is fixed on the first threaded rod, and the gear is meshed with the convex tooth plate. The first threaded rod is threadedly connected to a connecting plate, and the connecting plate is fixed to a clamping plate. The clamping plate is in contact with the operating table and can slide. An installation frame is fixed on the fixing frame. A second cylinder is arranged below the installation frame, and the output end of the second cylinder is fixed to a U-shaped frame. A welding head is installed on the U-shaped frame. A pressure rod is fixed to the welding head. The pressure rod and the welding head are located directly above the convex strip, and the pressure rod is in contact with the convex strip and slides.

[0005] Preferably, four legs are vertically fixed to the lower end face of the panel, and a limiting plate is fixed to the front side of the upper end face of the panel. Guide rail sides are symmetrically arranged on the left and right of the limiting plate, and guide rails are symmetrically fixed to the upper end face of the panel on the left and right. Through the above structure, basic guarantee can be provided for the normal operation of the device.

[0006] Preferably, sliders are also symmetrically fixed to the left and right of the lower end face of the operating table. The sliders are slidably connected to the guide rails. Protrusions are also fixed to the sliders. When the protrusions contact the limiting plate, positioning can be achieved. When the operating table is stressed and moves, through the sliding guiding action between the sliders and the guide rails, the stability of the movement of the operating table can be ensured. And by the contact between the protrusions and the limiting plate, the limit distance of the movement of the operating table can be limited, avoiding the separation of the sliders from the guide rails, thus ensuring the normal operation of the device.

[0007] Preferably, one end of a support rod is rotatably connected to the front end face of the operating table, and the other end of the support rod is rotatably connected to a movable block. The movable block is slidably connected to the legs. The support rods are symmetrically distributed on the left and right with respect to the center line of the operating table. When the operating table moves forward, through the rotation of the support rods and the cooperation of the movable block, the support of the operating table can be realized, thus ensuring the stability of the operating table.

[0008] Preferably, one end of a second spring is fixed to the lower end of the convex strip, and the other end of the second spring is fixed to the operating table. A guide rod is also fixed to the lower end face of the convex strip. The guide rod is slidably connected to the operating table. The width of the convex strip is 1-3 mm. Through the elastic action of the second spring, basic guarantee can be provided for the movement and automatic reset of the convex strip. And when the convex strip moves, through the sliding guiding action between the guide rod and the operating table, the stability of the movement of the convex strip can be ensured.

[0009] Preferably, a cross bar fixed to the operating table is arranged directly above the first threaded rod. The cross bar is slidably connected to the connecting plate. When the clamping plate moves, through the sliding guiding action between the cross bar and the connecting plate, the clamping plate can be ensured to perform stable linear motion.

[0010] Preferably, a baffle is also fixed to the clamping plate. The width of the baffle is greater than half of the width of the U-shaped frame. By limiting the width of the baffle, it can be ensured that the distance between the two clamping plates is greater than the width of the U-shaped frame, thus providing basic guarantee for the normal operation of the device.

[0011] Preferably, a motor is fixed to the front end face of the mounting frame. The output end of the motor is fixed with a second threaded rod. The second threaded rod is connected to the mounting frame by bearings. A fixed rod is also fixed to the mounting frame and is arranged directly above the second threaded rod. Through the action of the motor, basic acting force can be provided for the rotation of the second threaded rod.

[0012] Preferably, a connecting block is further fixed to the upper end face of the second cylinder. The connecting block is in threaded connection with the second threaded rod, and the connecting block is in sliding connection with the fixed rod. The threaded connection between the second threaded rod and the connecting block can provide a basic acting force for the movement of the second cylinder. When the second cylinder moves, the sliding guiding function between the connecting block and the fixed rod can ensure the stability of the movement of the second cylinder.

[0013] Preferably, balls are further installed on the lower end face of the U-shaped frame, and the balls can roll when contacting the sheet metal part. During welding, the U-shaped frame and the balls can play an upper and lower limiting role on the sheet metal part to ensure the normal progress of welding. With the rolling effect of the balls, the friction between the U-shaped frame and the sheet metal part can be reduced, providing a basic guarantee for the normal movement of the U-shaped frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The sheet metal welding device with a positioning function adopts a deployable operating table structure, which can conveniently move the operating table outwards to avoid the welding mechanism from blocking the installation and fixation of the sheet metal part. When the operating table is reset, the position of the clamping plate can be adjusted through the transmission between the convex tooth plate and the gear. The clamping plate can drive the sheet metal part to move until the sheet metal part contacts the convex strip, so as to realize the automatic positioning of the sheet metal part and ensure that the distance between the welding surfaces of the two sheet metal parts is equal, thereby ensuring the welding quality of the sheet metal part in the later stage. The specific content is as follows:

[0015] 1. For the sheet metal welding device with a positioning function, when loading large-sized sheet metal parts, the first cylinder can extend to drive the operating table to move outwards, which is convenient for placing large-sized sheet metal parts, avoiding the influence of the welding mechanism on the installation of the sheet metal part and improving the operation convenience. When the operating table moves outwards, with the cooperation of the support rod and the convex block, the suspended side of the operating table can be supported to ensure the stability of the operating table;

[0016] 2. For the sheet metal welding device with a positioning function, when the operating table drives the sheet metal part to reset, the position of the clamping plate can be adjusted through the transmission between the gear and the convex tooth plate, in cooperation with the threaded connection between the first threaded rod and the connecting plate, so as to drive the sheet metal part to move until the welding surface of the sheet metal part contacts the convex strip. When the operating table is not fully reset at this time, through the action of the first spring, the gear and the convex tooth plate can slide, providing a basic guarantee for the normal operation of the device. By ensuring that the welding surfaces of the two sheet metal parts both contact the convex strip, the distance between the welding surfaces of the two sheet metal parts can be kept consistent, providing a basic guarantee for the welding quality of the sheet metal part;

[0017] 3. When welding the sheet metal parts, the sheet metal welding device with positioning function can realize the pressing and positioning of the sheet metal parts through the action of the U-shaped frame and the ball bearings, ensuring the stability of the sheet metal parts during the welding process. And with the cooperation of the pressing rod and the second spring, the convex strip can be contracted into the operating table, thus effectively avoiding the convex strip from affecting the normal welding of the sheet metal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view three-dimensional structure schematic diagram of the whole device of the present invention;

[0019] Figure 2 It is a front view three-dimensional structure schematic diagram of the whole device of the present invention when unfolded;

[0020] Figure 3 It is a bottom view three-dimensional structure schematic diagram of the whole device of the present invention when unfolded;

[0021] Figure 4 It is a partial cross-sectional three-dimensional structure schematic diagram of the operating table of the present invention;

[0022] Figure 5 It is a front view three-dimensional structure schematic diagram composed of the operating table and the movable plate of the present invention;

[0023] Figure 6 It is a front view three-dimensional structure schematic diagram of the mounting rack of the present invention;

[0024] Figure 7 It is a bottom view three-dimensional structure schematic diagram of the mounting rack of the present invention.

[0025] In the figure: 1, panel; 101, support feet; 102, limit plate; 103, guide rail; 2, fixed frame; 3, movable plate; 301, slide bar; 302, first spring; 303, convex tooth plate; 4, first cylinder; 5, operating table; 501, slider; 502, convex block; 503, support rod; 504, movable block; 6, convex strip; 601, second spring; 602, guide rod; 7, first threaded rod; 701, gear; 702, cross bar; 8, clamping plate; 801, connecting plate; 802, baffle; 9, mounting rack; 901, motor; 902, second threaded rod; 903, fixed rod; 10, second cylinder; 1001, connecting block; 11, U-shaped frame; 1101, ball bearing; 1102, welding head; 1103, pressing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 7 Figures 1 - 7 , the present invention provides a technical solution: a sheet metal welding device with a positioning function, including a panel 1 and a fixing frame 2. The fixing frame 2 is fixed on the upper end surface of the panel 1. Two movable plates 3 are symmetrically arranged on the left and right above the panel 1. The front and rear of the lower end surface of the movable plate 3 are symmetrically fixed with slide rods 301, and the slide rods 301 are slidably connected to the panel 1. One end of a first spring 302 is also fixed on the lower end surface of the movable plate 3, and the other end of the first spring 302 is fixed on the panel 1. A convex tooth plate 303 is vertically fixed on the upper end surface of the movable plate 3. A first cylinder 4 is fixed on the upper end surface of the panel 1, and the output end of the first cylinder 4 is fixed on an operating table 5. The operating table 5 is arranged above the panel 1. A convex strip 6 is slidably connected to the operating table 5. A first threaded rod 7 is rotatably connected to the operating table 5 through a bearing. A gear 701 is fixed on the first threaded rod 7, and the gear 701 is meshed with the convex tooth plate 303. The first threaded rod 7 is connected to a connecting plate 801 through a thread. The connecting plate 801 is fixed on a clamping plate 8, and the clamping plate 8 is in contact with the operating table 5 and can slide. An installation frame 9 is fixed on the fixing frame 2. A second cylinder 10 is arranged below the installation frame 9. The output end of the second cylinder 10 is fixed with a U-shaped frame 11. A welding head 1102 is installed on the U-shaped frame 11. A pressure rod 1103 is fixed on the welding head 1102. The pressure rod 1103 and the welding head 1102 are located directly above the convex strip 6, and the pressure rod 1103 is in contact with the convex strip 6 and slides.

[0028] Four support feet 101 are vertically fixed on the lower end surface of the panel 1, and a limit plate 102 is fixed on the front side of the upper end surface of the panel 1. Guide rails 103 are symmetrically arranged on the left and right sides of the limit plate 102, and the guide rails 103 are symmetrically fixed on the upper end surface of the panel 1; two slider blocks 501 are symmetrically fixed on the left and right of the lower end surface of the operating table 5, and the slider blocks 501 are slidably connected to the guide rails 103. A convex block 502 is also fixed on the slider blocks 501, and the convex block 502 is in contact with the limit plate 102 to achieve a positioning function; one end of a support rod 503 is rotatably connected to the front end surface of the operating table 5, and the other end of the support rod 503 is rotatably connected to a movable block 504, and the movable block 504 is slidably connected to the support feet 101. The support rods 503 are symmetrically distributed on the left and right with respect to the center line of the operating table 5; a cross bar 702 fixed on the operating table 5 is arranged directly above the first threaded rod 7, and the cross bar 702 is slidably connected to the connecting plate 801; a baffle 802 is also fixed on the clamping plate 8, and the width of the baffle 802 is greater than half of the width of the U-shaped frame 11;

[0029] When using the sheet metal welding device with a positioning function, as Figures 1 - 7As shown, when placing the sheet metal part, by controlling the extension of the first cylinder 4, the operating table 5 is driven to move forward. With the sliding guiding effect between the slider 501 and the guide rail 103, the stability of the movement of the operating table 5 can be ensured. When the operating table 5 moves forward, at this time, the front support rod 503 of the operating table 5 is stressed and rotates. Through the transmission of the support rod 503, the movable block 504 can slide upward on the support leg 101 until the convex block 502 contacts the limit plate 102, and the forward movement of the operating table 5 is completed. At this time, with the support of the support rod 503, the front side of the operating table 5 that is suspended can be supported to ensure the stability of the operating table 5. When the operating table 5 moves forward, the first threaded rod 7 and the gear 701 are driven to move forward at the same time. With the meshing transmission between the gear 701 and the convex tooth plate 303, the first threaded rod 7 can be stressed and rotated. With the threaded connection between the first threaded rod 7 and the connecting plate 801 and the sliding guiding effect between the connecting plate 801 and the cross bar 702, the two clamping plates 8 can move towards each other, so that the distance between the two clamping plates 8 increases. When the forward movement of the operating table 5 is completed, the distance between the two clamping plates 8 is at the maximum position as Figure 2 shown. Then, the two sheet metal parts to be welded are placed on the operating table 5, and the side of the sheet metal part close to the clamping plate 8 contacts the clamping plate 8, and the rear side of the sheet metal part contacts the baffle 802. After the sheet metal parts are placed, by controlling the contraction of the first cylinder 4, the operating table 5 can be driven to move backward and reset. During the backward movement of the operating table 5, when the gear 701 meshes with the convex tooth plate 303, according to the above principle, the two clamping plates 8 can move towards each other, so as to reduce the distance between the two clamping plates 8. When the clamping plates 8 move towards each other, the two sheet metal parts can be driven to move towards each other synchronously, so as to reduce the distance between the two sheet metal parts until the sides of the two sheet metal parts close to the convex strip 6 contact the convex strip 6, and the positioning of the sheet metal parts can be realized. At this time, the operating table 5 continues to move backward and reset. Since the position of the clamping plate 8 is fixed at this time, the first threaded rod 7 and the gear 701 cannot rotate. When the gear 701 continues to move backward with the operating table 5, the gear 701 exerts a force on the convex tooth plate 303, causing the convex tooth plate 303 and the movable plate 3 to move downward. With the sliding guiding effect between the sliding rod 301 and the panel 1, the stability of the movement of the convex tooth plate 303 and the movable plate 3 can be ensured, so that the gear 701 can be separated from the convex tooth plate 303 to ensure the normal backward movement of the gear 701. When the operating table 5 is reset, through the elastic action of the first spring 302, the convex tooth plate 303 can be reset to mesh with the gear 701 to ensure the normal operation of the device. At this time, by making the welding surfaces of the two sheet metal parts close to the convex strip 6 contact the convex strip 6, the distance between the welding surfaces of the two sheet metal parts can be ensured to be equal, so that the subsequent welding quality of the sheet metal parts can be ensured;

[0030] One end of a second spring 601 is fixed to the lower end of the rib 6, and the other end of the second spring 601 is fixed to the operating table 5. A guide rod 602 is also fixed to the lower end face of the rib 6, and the guide rod 602 is slidably connected to the operating table 5. The width of the rib 6 is 1-3 mm; A motor 901 is fixed to the front end face of the mounting frame 9, and a second threaded rod 902 is fixed to the output end of the motor 901, and the second threaded rod 902 is connected to the mounting frame 9 by bearings. A fixed rod 903 is also fixed to the mounting frame 9 and is arranged directly above the second threaded rod 902; A connecting block 1001 is also fixed to the upper end face of the second cylinder 10, and the connecting block 1001 is threadedly connected to the second threaded rod 902, and the connecting block 1001 is slidably connected to the fixed rod 903; Ball bearings 1101 are also installed on the lower end face of the U-shaped frame 11, and the ball bearings 1101 can roll when contacting the sheet metal part;

[0031] After the operating table 5 is reset, as Figures 1 - 7 shown, at this time, the welding seam between the two sheet metal parts is directly below the welding head 1102. By controlling the second cylinder 10 to start, the U-shaped frame 11 and the welding head 1102 can be driven to move downward. When the pressing rod 1103 contacts the rib 6, the rib 6 is forced to slide downward at this time. With the sliding guiding effect between the guide rod 602 and the operating table 5, the stability of the movement of the rib 6 can be ensured. At this time, the second spring 601 is forced to contract until the ball bearings 1101 on the lower end face of the U-shaped frame 11 contact the sheet metal part, and the pressing and limiting effect on the sheet metal part can be realized. And at this time, the rib 6 completely moves downward into the operating table 5, avoiding the influence of the rib 6 on the subsequent welding of the sheet metal part. And at this time, the welding head 1102 is directly above the welding seam of the sheet metal part. Then, by controlling the motor 901 to start and drive the second threaded rod 902 to rotate, through the threaded connection between the second threaded rod 902 and the connecting block 1001 and the sliding effect between the connecting block 1001 and the fixed rod 903, the U-shaped frame 11 and the welding head 1102 can be moved. With the rolling effect between the ball bearings 1101 and the sheet metal part, the friction between the U-shaped frame 11 and the sheet metal part can be reduced, ensuring the normal movement of the U-shaped frame 11. By moving the welding head 1102, the sheet metal part can be welded. And because the welding seams of the sheet metal parts are connected, the welding quality of the sheet metal parts can be effectively ensured. This is the working principle of the sheet metal welding device with a positioning function.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal welding device with a positioning function, comprising a panel (1) and a fixing frame (2), characterized in that: A fixing frame (2) is fixed on the upper end surface of the panel (1). On the upper side of the panel (1), movable plates (3) are symmetrically arranged left and right. On the front and rear of the lower end surface of the movable plate (3), sliding rods (301) are symmetrically fixed. The sliding rods (301) are slidably connected to the panel (1). One end of a first spring (302) is also fixed on the lower end surface of the movable plate (3), and the other end of the first spring (302) is fixed on the panel (1). A convex tooth plate (303) is vertically fixed on the upper end surface of the movable plate (3). A first air cylinder (4) is fixed on the upper end surface of the panel (1). The output end of the first air cylinder (4) is fixed on an operating table (5). The operating table (5) is arranged above the panel (1). A convex strip (6) is slidably connected to the operating table (5). A first threaded rod (7) is connected to the operating table (5) by a bearing. A gear (701) is fixed on the first threaded rod (7). The gear (701) is meshed with the convex tooth plate (303). The first threaded rod (7) is connected to a connecting plate (801) by a thread. The connecting plate (801) is fixed on a clamping plate (8). The clamping plate (8) is in contact with the operating table (5) and can slide. An installation frame (9) is fixed on the fixing frame (2). A second air cylinder (10) is arranged below the installation frame (9). The output end of the second air cylinder (10) is fixed with a U-shaped frame (11). A welding head (1102) is installed on the U-shaped frame (11). A pressing rod (1103) is fixed on the welding head (1102). The pressing rod (1103) and the welding head (1102) are located directly above the convex strip (6). The pressing rod (1103) is in contact with the convex strip (6) and slides.

2. The sheet metal welding device with a positioning function according to claim 1, wherein: Four supporting feet (101) are vertically fixed on the lower end surface of the panel (1). A limiting plate (102) is fixed on the front side of the upper end surface of the panel (1). On the left and right sides of the limiting plate (102), guide rails (103) are symmetrically arranged. At the same time, the guide rails (103) are symmetrically fixed on the upper end surface of the panel (1).

3. A sheet metal welding device with a positioning function according to claim 2, characterized in that: Sliders (501) are symmetrically fixed on the left and right of the lower end surface of the operating table (5). The sliders (501) are slidably connected to the guide rails (103). A convex block (502) is also fixed on the sliders (501). At the same time, the convex block (502) is in contact with the limiting plate (102) to achieve a positioning function.

4. A sheet metal welding device with a positioning function according to claim 2, characterized in that: One end of a supporting rod (503) is rotatably connected to the front end surface of the operating table (5). The other end of the supporting rod (503) is rotatably connected to a movable block (504). The movable block (504) is slidably connected to the supporting feet (101). The supporting rods (503) are symmetrically distributed on the left and right with respect to the center line of the operating table (5).

5. The sheet metal welding device with a positioning function according to claim 1, wherein: One end of a second spring (601) is fixed to the lower end of the convex strip (6), and the other end of the second spring (601) is fixed to the operating table (5). A guide rod (602) is also fixed to the lower end surface of the convex strip (6). The guide rod (602) is slidably connected to the operating table (5). The width of the convex strip (6) is 1 - 3 mm.

6. The sheet metal welding device with a positioning function according to claim 1, characterized in that: Above the first threaded rod (7), a cross bar (702) fixed to the operating table (5) is provided, and the cross bar (702) is slidably connected to the connecting plate (801).

7. A sheet metal welding device with a positioning function according to claim 1, characterized in that: A baffle (802) is also fixed on the clamping plate (8), and the width of the baffle (802) is greater than half of the width of the U-shaped frame (11).

8. The sheet metal welding device with a positioning function according to claim 1, characterized in that: A motor (901) is fixed on the front end face of the mounting frame (9), and the output end of the motor (901) is fixed with a second threaded rod (902). The second threaded rod (902) is connected to the mounting frame (9) by bearings. A fixing rod (903) is also fixed on the mounting frame (9) above the second threaded rod (902).

9. The sheet metal welding device with a positioning function according to claim 8, wherein: A connecting block (1001) is also fixed on the upper end face of the second cylinder (10). The connecting block (1001) is threadedly connected to the second threaded rod (902), and the connecting block (1001) is slidably connected to the fixing rod (903).

10. A sheet metal welding device with a positioning function according to claim 1, characterized in that: A ball (1101) is also installed on the lower end face of the U-shaped frame (11), and the ball (1101) can roll when contacting the sheet metal part.

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