Workpiece conveying mechanism for welding machine

Abstract

The utility model relates to the technical field of welding machines, and discloses a workpiece conveying mechanism for welding machines, the workpiece conveying mechanism comprises a rack, a turnover mechanism and two welding machines, a conveying belt is arranged in the rack, a driving mechanism for driving the conveying belt to rotate is arranged on the rack, a plurality of supporting plates are symmetrically and fixedly connected to the side wall of the conveying belt, and the two welding machines are arranged on the supporting plates. A fixing frame is rotationally mounted on the opposite sides of every two adjacent supporting plates through a connecting shaft, sliding grooves are symmetrically formed in the fixing frames, and sliding blocks are slidably mounted in the two sliding grooves; the conveying belt can be driven to rotate through the motor, so that a workpiece in the fixing frame can be conveyed, when a gear on the fixing frame is meshed with a toothed plate, the fixing frame and the workpiece can be driven to rotate by 180 degrees, and the two faces of the workpiece can be welded through the two welding machines; and the situation that a worker manually turns over the workpiece is avoided, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding machines, and in particular to a workpiece conveying mechanism for a welding machine. Background Art

[0002] A welding machine is a device used to join metal or plastic parts using heat, pressure, or a combination of both. It effectively connects materials, fusing them into a single unit at the point of contact. There are various types of welding machines, including arc welders, spot welders, and laser welders. Current welding machines typically weld one side of a workpiece first. After welding one side, the worker manually flips the workpiece over before welding the other side. Manually flipping the workpiece over is labor-intensive and difficult when processing a large number of workpieces, making it impractical. Utility Model Content

[0003] In order to solve the problems raised by the above background technology, the present application provides a workpiece conveying mechanism for a welding machine.

[0004] The present application provides a workpiece conveying mechanism for a welding machine that adopts the following technical solution:

[0005] A workpiece conveying mechanism for a welding machine comprises a frame, a turning mechanism and two welding machines;

[0006] A conveyor belt is provided inside the frame, and a driving mechanism for driving the conveyor belt to rotate is provided on the frame, a plurality of support plates are symmetrically fixedly connected to the side walls of the conveyor belt, and a fixed frame is installed on opposite sides of two adjacent support plates for common rotation through a connecting shaft, and slidable grooves are symmetrically provided inside the fixed frame, and sliders are slidably installed in the two slids, and a clamping plate for fixing the workpiece is fixedly connected between the two adjacent sliders, and a driving component for driving the clamping plate to move is provided in the fixed frame;

[0007] The two lever arrangement comprises two guide rails, each of which is fixedly connected to the top surface of the frame by two connecting rods, and the two guide rails have a movable slot on the opposite side of the guide rails. The two support rails have a fixedly connected fixed plate on the opposite side of the guide rails, and the lower surface of the fixed plate is elastically connected to a slide plate by a tension spring, one side of the slide plate is fixedly connected to a ball movable in the movable slot by a connecting column, the upper surface of the slide plate is fixedly connected to a fixing rod located inside the tension spring, and the opposite ends of the two connecting shafts pass through the support plate and are fixedly connected to a gear, and a fixing hole is formed on the side wall of the connecting shaft, and the top of the fixing rod slides through the fixing plate and extends into the fixing hole, and the upper surface of the guide plate is fixedly connected to a toothed plate meshing with the gear through two support rods;

[0008] The two welding machines are both arranged on the machine frame and are used for welding workpieces.

[0009] Preferably, the driving mechanism includes a motor and two conveying rollers, the motor is fixedly connected to one side of the frame, the two conveying rollers are symmetrically mounted inside the frame, the conveyor belt is sleeved on the two conveying rollers, and the output end of the motor is transmission-connected to one end of one of the conveying rollers.

[0010] Preferably, the driving assembly includes a bidirectional screw rod, which is rotatably installed in one of the sliding grooves, and the bidirectional screw rod passes through two of the sliding blocks and is threadedly connected thereto.

[0011] Preferably, the movable groove consists of a first horizontal plane, an inclined plane, a second horizontal plane, an inclined plane and a first horizontal plane in sequence from left to right.

[0012] In summary, this application has the following beneficial technical effects:

[0013] Compared with the existing technology, the conveyor belt can be driven to rotate by a motor, so that the workpiece in the fixed frame can be transported, and when the gear on the fixed frame is engaged with the tooth plate, the fixed frame and the workpiece can be driven to rotate 180°. The two welding machines can be used to weld both sides of the workpiece, avoiding the need for staff to manually flip the workpiece, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the application;

[0015] Figure 2 is a schematic structural diagram of a driving mechanism according to an embodiment of the application;

[0016] Figure 3 This is a schematic structural diagram of a flipping mechanism according to an embodiment of the application;

[0017] Figure 4 is a schematic structural diagram of a guide plate according to an embodiment of the application;

[0018] Figure 5 It is a structural diagram of the drive component of the embodiment of the application.

[0019] Explanation of the accompanying symbols: 1. Frame; 2. Welding machine; 3. Fixed frame; 4. Clamping plate; 5. Conveyor belt; 6. Motor; 7. Connecting rod; 8. Guide plate; 9. Movable groove; 10. Gear; 11. Support plate; 12. Connecting shaft; 13. Tooth plate; 14. Support rod; 15. Fixing hole; 16. Fixing rod; 17. Fixing plate; 18. Ball; 19. Connecting column; 20. Slide plate; 21. Tension spring; 22. Slider; 23. Bidirectional screw rod; 24. Conveyor roller. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 This application is described in further detail.

[0021] The embodiment of the present application discloses a workpiece conveying mechanism for a welding machine. Figure 1-5 , a workpiece conveying mechanism for a welding machine, comprising a frame 1, a turning mechanism and two welding machines 2;

[0022] A conveyor belt 5 is provided inside the frame 1, and a driving mechanism for driving the conveyor belt 5 to rotate is provided on the frame 1;

[0023] The drive mechanism includes a motor 6 and two conveyor rollers 24. The motor 6 is fixedly connected to one side of the frame 1. The two conveyor rollers 24 are symmetrically mounted inside the frame 1. The conveyor belt 5 is sleeved on the two conveyor rollers 24. The output end of the motor 6 is in driving connection with one end of one of the conveyor rollers 24.

[0024] A plurality of support plates 11 are symmetrically fixedly connected to the side walls of the conveyor belt 5. A fixed frame 3 is installed on the opposite side of two adjacent support plates 11 through a connecting shaft 12 for common rotation. A symmetrical slide groove is opened inside the fixed frame 3, and a slider 22 is slidably installed in each of the two slide grooves. A clamping plate 4 for fixing the workpiece is fixedly connected between two adjacent sliders 22. A driving component for driving the clamping plate 4 to move is provided in the fixed frame 3.

[0025] The drive assembly includes a bidirectional screw 23, which is rotatably installed in one of the slide grooves. The bidirectional screw 23 passes through two of the sliders 22 and is threadedly connected to them. The threads between the bidirectional screw 23 and the sliders 22 can achieve self-locking. The self-locking condition of the thread depends on the helix angle, friction coefficient and load of the thread. The self-locking condition of the thread can be calculated by the following formula: Self-locking condition = friction coefficient × tan (helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above contents are all existing technologies, and in actual applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here;

[0026] The turning mechanism includes two guide plates 8, the opposite sides of the two guide plates 8 are fixedly connected to the upper surface of the frame 1 through two connecting rods 7, and the opposite sides of the two guide plates 8 are provided with movable grooves 9, and the movable grooves 9 are composed of a first horizontal plane, an inclined plane, a second horizontal plane, an inclined plane and a first horizontal plane from left to right. The opposite sides of the two support plates 11 are fixedly connected to a fixed plate 17, and the lower surface of the fixed plate 17 is elastically connected to a slide plate 20 by a tension spring 21. One side of the slide plate 20 is fixedly connected to a ball 18 that moves in the movable groove 9 through a connecting column 19, and the upper surface of the slide plate 20 is fixedly connected to a fixing rod 16 located inside the tension spring 21. The opposite ends of the two connecting shafts 12 pass through the support plate 11 and are fixedly connected to the gear 10. A fixing hole 15 is provided on the side wall of the connecting shaft 12. The top end of the fixing rod 16 slides through the fixing plate 17 and extends into the fixing hole 15. The upper surface of the guide plate 8 is fixedly connected to a toothed plate 13 that meshes with the gear 10 through two support rods 14;

[0027] Two welding machines 2 are both arranged on the frame 1 and used for welding workpieces;

[0028] When in use, the electrical components appearing in this application are all connected to the power supply and control switch externally. The staff places the workpiece to be welded on the clamping plate 4 in the fixed frame 3 and manually supports the workpiece. By rotating the bidirectional screw rod 23, the two clamping plates 4 can be driven to approach each other, so that the workpiece can be clamped and fixed, and then the workpiece can be released. By starting the motor 6, one of the conveyor rollers 24 can be driven to rotate, and the conveyor roller 24 can drive the conveyor belt 5 and the other conveyor roller 24 to rotate synchronously. The conveyor belt 5 can drive the workpiece to move to the right through the support plate 11 and the fixed frame 3. When the workpiece moves to the bottom of the left welding machine 2, the operation of the motor 6 is paused, and the welding machine 2 on the left is used. It is possible to perform welding on one side of the workpiece. During the welding process, the worker places the workpiece in the fixed frame 3 on the left side of the fixed frame 3. After the welding is completed, the motor 6 is started to drive the workpiece to continue to move to the right. The support plate 11 can drive the ball 18 thereon to move. When the ball 18 moves into the movable groove 9 on the guide plate 8, the ball 18 can drive the fixed rod 16 to move downward along the direction of the movable groove 9 through the slide 20, so that the top end of the fixed rod 16 can be disengaged from the fixed hole 15 on the connecting shaft 12. After the top end of the fixed rod 16 is disengaged from the fixed hole 15, the connecting shaft 12 can drive the gear 10 thereon to move to the tooth plate 13, and the gear 10 can drive the workpiece to 1 through the fixed frame 3. After the workpiece has been moved to the bottom of the right welding machine 2, the motor 6 is paused, and one side of the workpiece can be welded by the right welding machine 2. At the same time, the fixed frame 3 on the left side of the fixed frame 3 completes a 90° rotation, and the fixed frame 3 on the left side of the fixed frame 3 that has rotated 90° will also move to the bottom of the left welding machine 2. After welding is completed, the motor 6 is started again, and the cycle repeats. When the initial fixed frame 3 is moved to the bottom of the left welding machine 2, the motor 6 is paused, and the welding machine 2 on the right side can weld one side of the workpiece. At the same time, the fixed frame 3 on the left side of the fixed frame 3 completes a 90° rotation, and the fixed frame 3 on the left side of the fixed frame 3 that has been rotated 90° will also move to the bottom of the left welding machine 2. After welding is completed, the motor 6 is started again, and the cycle repeats. When it rotates to the top of the left side of the conveyor belt 5 again, the staff moves the ball 18 downward so that the top of the fixing rod 16 is disengaged from the fixing hole 15, so that the fixing frame 3 can be manually rotated 180°, and then the workpiece after welding can be removed and replaced with a new workpiece. During this process, the conveyor belt 5 can be driven to rotate by the motor 6, so that the workpiece in the fixing frame 3 can be transported, and when the gear 10 on the fixing frame 3 is engaged with the tooth plate 13, the fixing frame 3 and the workpiece can be driven to rotate 180°. The two welding machines 2 can be used to weld both sides of the workpiece, avoiding the need for staff to manually flip the workpiece, thereby improving the working efficiency of the device.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A workpiece conveying mechanism for a welding machine, characterized in that: It comprises a frame (1), a turning mechanism and two welding machines (2); A conveyor belt (5) is provided inside the frame (1), and a driving mechanism for driving the conveyor belt (5) to rotate is provided on the frame (1), and a plurality of support plates (11) are symmetrically fixedly connected to the side wall of the conveyor belt (5), and a fixed frame (3) is installed on the opposite side of two adjacent support plates (11) through a connecting shaft (12) for common rotation, and a sliding groove is symmetrically provided inside the fixed frame (3), and a slider (22) is slidably installed in each of the two sliding grooves, and a clamping plate (4) for fixing a workpiece is fixedly connected between the two adjacent sliders (22), and a driving component for driving the clamping plate (4) to move is provided in the fixed frame (3); The flip mechanism comprises two guide plates (8), the opposite sides of the two guide plates (8) are fixedly connected to the upper surface of the frame (1) through two connecting rods (7), the opposite sides of the two guide plates (8) are provided with movable grooves (9), the opposite sides of the two support plates (11) are fixedly connected to fixed plates (17), the lower surface of the fixed plate (17) is elastically connected to a slide plate (20) through a tension spring (21), and one side of the slide plate (20) is fixedly connected to a ball (10) movable in the movable groove (9) through a connecting column (19). 8), the upper surface of the slide plate (20) is fixedly connected to a fixing rod (16) located inside the tension spring (21), and the opposite ends of the two connecting shafts (12) pass through the support plate (11) and are fixedly connected to the gear (10), and a fixing hole (15) is opened on the side wall of the connecting shaft (12), and the top end of the fixing rod (16) slides through the fixing plate (17) and extends into the fixing hole (15), and the upper surface of the guide plate (8) is fixedly connected to a toothed plate (13) meshing with the gear (10) through two support rods (14); The two welding machines (2) are both arranged on the machine frame (1) and are used for welding workpieces.

2. A workpiece conveying mechanism for a welding machine according to claim 1, characterized in that: The driving mechanism comprises a motor (6) and two conveying rollers (24); the motor (6) is fixedly connected to one side of the frame (1); the two conveying rollers (24) are symmetrically mounted inside the frame (1); the conveyor belt (5) is sleeved on the two conveying rollers (24); and the output end of the motor (6) is transmission-connected to one end of one of the conveying rollers (24).

3. A workpiece conveying mechanism for a welding machine according to claim 1, characterized in that: The driving assembly comprises a bidirectional screw rod (23), which is rotatably mounted in one of the sliding grooves. The bidirectional screw rod (23) passes through two of the sliding blocks (22) and is threadedly connected thereto.

4. A workpiece conveying mechanism for a welding machine according to claim 1, characterized in that: The movable groove (9) is composed of a first horizontal plane, an inclined plane, a second horizontal plane, an inclined plane and a first horizontal plane in sequence from left to right.

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