Automatic disc welding machine

Abstract

The utility model discloses an automatic disc welding machine. The automatic disc welding machine comprises a workbench, a rotary disc mechanism, a welding mechanism and a plurality of workpiece positioning carriers. The rotary table mechanism drives the workpiece positioning carriers distributed in an annular array to rotate, and the welding mechanism welds the first workpieces and the second workpieces on the carriers. The workpiece positioning carrier comprises a carrier body and a quick clamp, a receding groove is formed in the middle of the carrier body, hook bodies are positioned on the two sides of the carrier body through first workpiece positioning grooves, and an installation base is fixed to the front side of the carrier body through a positioning strip and a positioning block. And the first bending part at the front end of the hook body is pushed by the quick clamp push rod to tightly abut against the rear side edge of the mounting seat. Continuous operation of feeding, positioning, welding and discharging is achieved through rotating disc type multi-station rotation, a three-dimensional positioning structure and an automatic clamping mechanism are matched, the problems that traditional manual welding is low in efficiency, large in positioning deviation and high in labor intensity are solved, the welding efficiency is improved, the welding seam position error is small, and the welding quality is improved. And the production efficiency and the product percent of pass are obviously improved.

Description

Technical Field

[0001] This application relates to the field of hardware welding equipment, and in particular to an automatic disc welding machine. Background Technology

[0002] In industrial production, hooks serve as connecting components for storage boxes. A hook typically consists of two parts: a mounting base for fixed installation (the second part) and a hook body for hanging items (the first part). These two metal parts need to be joined together using a welding process to ensure the hook's structural strength and reliability.

[0003] Currently, the welding of this type of hook is generally done manually, one by one. This traditional welding method has obvious drawbacks: on the one hand, manual welding is inefficient and cannot meet the needs of large-scale industrial production; on the other hand, workers need to perform welding operations repeatedly for long periods of time, which is extremely labor-intensive and can easily lead to fatigue, thus affecting the stability of welding quality.

[0004] Furthermore, in terms of workpiece positioning, existing welding methods lack efficient and precise positioning mechanisms, often relying on workers to manually place the workpiece, making it difficult to guarantee the relative positional accuracy between the hook and the mounting base. The front end of the hook usually needs to be bent to the right to form the first bend to achieve welding with the mounting base. However, manual positioning makes it difficult to ensure that the first bend fits tightly against the rear side of the mounting base, easily causing welding deviations and affecting the product qualification rate.

[0005] With the continuous improvement of automation levels in manufacturing, higher demands are being placed on the automation level and positioning accuracy of welding equipment. How to improve the production efficiency of hook welding, reduce the labor intensity of workers, and at the same time ensure the accuracy and stability of workpiece positioning during the welding process has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this application is to provide an automatic disc welding machine, which effectively solves the problems of low welding efficiency, poor positioning accuracy, and high labor intensity in the prior art by using the collaborative working principle of multi-station rotary disc rotation, precise positioning and clamping, and automated welding.

[0007] An automatic disc welding machine includes a worktable, a turntable mechanism, a welding mechanism, and multiple workpiece positioning carriers. The turntable mechanism is mounted on the worktable and drives the workpiece positioning carriers to rotate. The welding mechanism is located on one side of the worktable and is used to weld a first workpiece and a second workpiece on the workpiece positioning carriers. The workpiece positioning carriers are arranged in a circular array on the turntable mechanism and include a carrier body and a quick clamp. A clearance groove is formed in the middle of the surface of the carrier body, and the quick clamp is installed in the clearance groove. The left and right sides of the clearance groove are respectively provided with first workpiece positioning slots for positioning the first workpiece. The front side of the clearance groove is provided with a positioning strip and two positioning blocks. The positioning strip is used to position the front side of the second workpiece, and the two positioning blocks are used to position the left and right sides of the second workpiece, respectively. The front end of the first workpiece is bent to the right to form a first bend. The push rod of the quick clamp can push the front side of the first bend to abut against the rear side of the second workpiece.

[0008] Furthermore, a first clearance groove is provided on the front side of the positioning strip, and the first clearance groove is arc-shaped.

[0009] Furthermore, a second clearance groove is provided on the rear side of the first workpiece positioning groove, and the bottom of the second clearance groove is lower than the bottom of the first workpiece positioning groove.

[0010] Furthermore, the turntable mechanism includes a drive device, a turntable body, a proximity switch, and a control device. The drive device is located at the bottom of the turntable body and is used to drive the turntable body to rotate. The proximity switch is located on one side of the turntable body and is connected to the control device.

[0011] Furthermore, the welding mechanism includes a welding head and an XZ-axis drive module. The welding head is mounted on the XZ-axis drive module and is used to drive the welding head to move in three-dimensional space.

[0012] Furthermore, the welding mechanism also includes a protective cover, which covers the welding head and the XZ axis drive module.

[0013] Furthermore, the welding mechanism also includes a temperature sensor, which is disposed inside the protective cover and is used to detect the workpiece temperature.

[0014] Furthermore, a height sensor is provided on one side of the welding head.

[0015] Furthermore, a weld seam tracking sensor is provided on one side of the welding head.

[0016] The beneficial effects of this application are as follows:

[0017] The automatic disc welding machine provided in this application achieves efficient automation and precise positioning of the welding process for hook-type workpieces through the coordinated design of the turntable mechanism, workpiece positioning carrier, and welding mechanism. Its specific beneficial effects are as follows:

[0018] (1) The turntable mechanism of this application drives the workpiece positioning carriers distributed in a ring array to rotate, which can simultaneously carry multiple first and second workpieces to be welded. When the turntable rotates, each carrier passes under the welding mechanism in sequence, realizing a production line operation of "loading, positioning, welding and unloading". Compared with the intermittent operation of manual single welding in the prior art, this structure significantly shortens the welding cycle of a single workpiece and improves welding efficiency through the working principle of multi-station synchronous operation and continuous rotation, which is especially suitable for large-scale industrial production.

[0019] (2) The workpiece positioning carrier of this application has first workpiece positioning grooves on both sides of the clearance groove, which, together with the positioning strip and positioning block on the front side, form a three-dimensional positioning system for the first and second workpieces. The hook of the first workpiece is laterally limited by the positioning grooves on the left and right sides, and the first bent part formed by the bending of its front end is naturally suspended above the clearance groove. The mounting seat of the second workpiece is limited to the front side position by the positioning strip, and its sides are constrained by the left and right positioning blocks, ensuring that the rear side of the mounting seat and the welding surface of the first bent part are on the same vertical plane. The push rod of the quick clamp pushes the front side of the first bent part through mechanical transmission, so that it closely abuts against the rear side of the mounting seat, forming a gapless fit. This positioning principle avoids positional deviations caused by manual placement and significantly improves the welding qualification rate.

[0020] (3) Traditional manual welding requires workers to manually support the workpiece and control the welding position. However, this application uses an automated clamping mechanism with a quick-clamping fixture, which only requires the worker to place the workpiece when the turntable rotates to the loading / unloading station. The rest of the positioning, clamping, and welding processes are completed automatically by the equipment. The clamping time for a single workpiece is reduced from 15-20 seconds in the traditional process to 3-5 seconds, and there is no need to continuously monitor the welding process. The labor intensity of workers is reduced by more than 60%, and the quality fluctuations caused by human fatigue are also reduced.

[0021] In summary, this application effectively solves the problems of low welding efficiency, poor positioning accuracy, and high labor intensity in the prior art by using the collaborative working principle of rotary multi-station rotation, precise positioning clamping, and automated welding. It provides an efficient and stable technical solution for the automated welding of hook-type workpieces and has significant industrial application value. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of an automatic disc welding machine provided in an embodiment of this application;

[0023] Figure 2A three-dimensional structural diagram of an automatic disc welding machine provided in one embodiment of this application, showing the hidden protective cover from another perspective.

[0024] Figure 3 A three-dimensional structural schematic diagram of the vehicle body provided in an embodiment of this application;

[0025] Figure 4 A three-dimensional structural diagram of the workpiece positioning carrier after positioning the first workpiece and the second workpiece according to an embodiment of this application;

[0026] Figure 5 for Figure 4 A magnified view of a portion at point A;

[0027] Figure 6 for Figure 4 A magnified view of the area at point B;

[0028] Figure 7 A three-dimensional structural schematic diagram of a welding mechanism provided in an embodiment of this application;

[0029] Explanation of reference numerals in the attached figures:

[0030] Q, first workpiece; W, second workpiece; Q1, first bending section;

[0031] 100. Worktable; 200. Turntable mechanism; 300. Welding mechanism; 400. Workpiece positioning carrier;

[0032] 410. Carrier body; 420. Quick clamp; 411. Clearance groove; 412. First workpiece positioning groove; 413. Positioning bar; 414. Positioning block; 421. Push rod; 415. Second clearance groove;

[0033] 4131. First clearance groove;

[0034] 210. Drive unit; 220. Turntable body;

[0035] 310. Welding head; 320. XZ axis drive module; 330. Protective cover; 340. Temperature sensor; 350. Height sensor; 360. Weld seam tracking sensor; Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," etc., are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In particular, the understanding of the term "upper" following a noun in the claims should be understood as meaning that the entire inner and outer surfaces of the structure referred to by the noun conform to the definition of "upper."

[0038] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structures, features, and effects provided in this application.

[0039] like Figures 1 to 2 As shown, an automatic disc welding machine includes a worktable 100, a turntable mechanism 200, a welding mechanism 300, and multiple workpiece positioning carriers 400. The turntable mechanism 200 is disposed on the worktable 100 and is used to drive the workpiece positioning carriers 400 to rotate. The welding mechanism 300 is disposed on one side of the worktable 100 and is used to weld the first workpiece Q and the second workpiece W on the workpiece positioning carriers 400. The workpiece positioning carriers 400 are arranged in a circular array on the turntable mechanism 200.

[0040] like Figure 3 and Figure 4 As shown, the workpiece positioning carrier 400 includes a carrier body 410 and a quick clamp 420; a clearance groove 411 is provided in the middle of the surface of the carrier body 410, and the quick clamp 420 is installed in the clearance groove 411; the left and right sides of the clearance groove 411 are respectively provided with first workpiece positioning grooves 412 for positioning the first workpiece, and the front side of the clearance groove 411 is provided with a positioning strip 413 and two positioning blocks 414; the positioning strip 413 is used to position the front side of the second workpiece, and the two positioning blocks 414 are respectively used to position the left side and the right side of the second workpiece; the front end of the first workpiece is bent to the right to form a first bent part Q1, and the push rod 421 of the quick clamp 420 can push the front side of the first bent part to abut against the rear side of the second workpiece.

[0041] like Figure 5 As shown, in one embodiment, a first clearance groove 4131 is provided on the front side of the positioning strip 413. The first clearance groove 4131 is arc-shaped. The curved contour of the first clearance groove 4131 is geometrically adapted to the front end of the second workpiece (mounting base). When the operator places the workpiece, the arc-shaped structure can guide the front end of the workpiece, allowing it to slide naturally into the positioning area along the arc of the groove. This avoids the clamping jamming problem that may be caused by traditional right-angle positioning surfaces, shortens the clamping time of a single workpiece, and significantly improves the loading and unloading efficiency.

[0042] like Figure 6As shown, in one embodiment, a second clearance groove 415 is provided on the rear side of the first workpiece positioning groove 412, and the bottom of the second clearance groove 415 is lower than the bottom of the first workpiece positioning groove 412. The low-position design of the groove creates a 3-5mm overhanging gap E at the corner of the first workpiece bending section, allowing operators to directly grasp the corner of the first workpiece bending section with their fingers through this area without having to go around it and forcefully pry it out. Compared to the traditional flush groove bottom structure (where the workpiece is completely attached to the carrier surface, requiring fingertips to penetrate the gap when removing the workpiece), this design greatly shortens the manual unloading time for a single workpiece, making it especially suitable for small and medium-sized production lines that require frequent loading and unloading, and significantly reducing the workload of workers.

[0043] like Figure 2 As shown, in one embodiment, the turntable mechanism 200 includes a drive device 210, a turntable body 220, a proximity switch, and a control device. The drive device 210 is disposed at the bottom of the turntable body 220 and is used to drive the turntable body 220 to rotate. The proximity switch is disposed on one side of the turntable body 220 and is connected to the control device.

[0044] like Figure 7 As shown, in one embodiment, the welding mechanism 300 includes a welding head 310 and an XZ axis drive module 320. The welding head 310 is mounted on the XZ axis drive module 320 and is used to drive the welding head 310 to move in three-dimensional space.

[0045] like Figure 7 As shown, in one embodiment, the welding mechanism 300 further includes a protective cover 330, which covers the welding head 310 and the XZ axis drive module 320.

[0046] like Figure 1 As shown, in one embodiment, the welding mechanism 300 further includes a temperature sensor 340, which is disposed inside the protective cover 330 and used to detect the workpiece temperature. The temperature sensor 340 is directly arranged inside the protective cover 330 and can capture the temperature change curve of the workpiece in real time during the welding process. By monitoring the peak temperature of the molten pool and the cooling rate, quality defects can be effectively avoided.

[0047] like Figure 7 As shown, in one embodiment, a height sensor 350 is provided on one side of the welding head 310. This sensor dynamically monitors the distance between the welding head 310 and the workpiece surface, ensuring the welding torch is always at the optimal working height and avoiding problems such as incomplete welding or over-welding caused by workpiece positioning deviations or surface undulations.

[0048] like Figure 7As shown, in one embodiment, a weld seam tracking sensor 360 is provided on one side of the welding head 310. The sensor acquires the weld seam trajectory of the first workpiece bending portion and the second workpiece in real time through laser scanning or visual imaging. When the turntable positioning error or workpiece thermal deformation causes the weld seam to deviate, the system can dynamically adjust the movement trajectory of the welding head 310 within 20ms to ensure that the welding torch always travels along the actual weld seam, avoiding defects such as incomplete fusion and weld deviation caused by positional deviation in traditional fixed trajectory welding.

[0049] The working principle of the automatic disc welding machine of this application is as follows:

[0050] First, at the loading / unloading station of the turntable mechanism 200, the operator places the first workpiece (hook) into the first workpiece positioning slots 412 on both sides of the clearance groove 411 of the carrier body 410; simultaneously, the second workpiece (mounting seat) is positioned by the front positioning strip 413 and the left and right positioning blocks 414, so that the rear side of the mounting seat is initially aligned with the welding surface of the first bent part. After the push rod 421 of the quick clamp 420 is activated, it pushes the front side of the first bent part, so that it is tightly pressed against the rear side of the mounting seat, completing the rigid clamping of the two.

[0051] The drive device 210 (such as a motor) of the turntable mechanism 200 drives the turntable body 220 to rotate, causing the workpiece positioning carriers 400 distributed in a ring array to rotate along a preset trajectory. Proximity switches detect the turntable position in real time and provide feedback to the control device to precisely control the rotation angle, ensuring that each carrier passes through the loading, welding, and unloading stations in sequence. When the carrier carrying the workpiece rotates to below the welding mechanism 300, the turntable stops rotating and enters the welding process.

[0052] The three-axis drive module (X / Z axes) of the welding mechanism 300 drives the welding head 310 to move in three-dimensional space according to a preset program, adjusting it to the optimal welding position. A height sensor 350 detects the distance between the welding head 310 and the workpiece surface in real time, while a weld seam tracking sensor 360 dynamically identifies the weld seam position, ensuring accurate welding trajectory. A protective cover 330 covers the welding area, isolating weld spatter, and an internal temperature sensor 340 monitors the workpiece temperature in real time to prevent overheating and deformation. The welding head 310 welds the first bend and the rear side of the mounting base at their contact point, completing the connection between the two.

[0053] After welding is completed, the turntable continues to rotate, and the carrier carries the welded workpiece to the unloading station. The operator removes the finished product, and at the same time, a new workpiece is loaded into the empty carrier, forming a fully automated cycle of "loading, positioning, welding, and unloading". Through the synchronous operation of multiple stations and the continuous rotation of the turntable, efficient and automated welding of hook-type workpieces is achieved, significantly improving production efficiency and welding quality stability.

[0054] The embodiments described above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. An automatic disc welding machine, characterized in that: It includes a worktable, a turntable mechanism, a welding mechanism, and multiple workpiece positioning carriers; the turntable mechanism is disposed on the worktable and is used to drive the workpiece positioning carriers to rotate; the welding mechanism is disposed on one side of the worktable and is used to weld the first workpiece and the second workpiece on the workpiece positioning carrier. The workpiece positioning carrier is arranged in a circular array on the turntable mechanism, including a carrier body and a quick clamp. A clearance groove is formed in the middle of the surface of the carrier body, and the quick clamp is installed in the clearance groove. The left and right sides of the clearance groove are respectively provided with first workpiece positioning grooves for positioning the first workpiece. The front side of the clearance groove is provided with a positioning strip and two positioning blocks. The positioning strip is used to position the front side of the second workpiece, and the two positioning blocks are used to position the left and right sides of the second workpiece, respectively. The front end of the first workpiece is bent to the right to form a first bend. The push rod of the quick clamp can push the front side of the first bend so that it abuts against the rear side of the second workpiece.

2. The automatic disc welding machine according to claim 1, characterized in that: The front side of the positioning strip is provided with a first clearance groove, which is arc-shaped.

3. The automatic disc welding machine according to claim 1, characterized in that: A second clearance groove is provided on the rear side of the first workpiece positioning groove, and the bottom of the second clearance groove is lower than the bottom of the first workpiece positioning groove.

4. An automatic disc welding machine according to claim 1, characterized in that: The turntable mechanism includes a drive device, a turntable body, a proximity switch, and a control device. The drive device is located at the bottom of the turntable body and is used to drive the turntable body to rotate. The proximity switch is located on one side of the turntable body and is connected to the control device.

5. An automatic disc welding machine according to any one of claims 1 to 4, characterized in that: The welding mechanism includes a welding head and an XZ axis drive module. The welding head is mounted on the XZ axis drive module and is used to drive the welding head to move in three-dimensional space.

6. An automatic disc welding machine according to claim 5, characterized in that: The welding mechanism also includes a protective cover, which covers the welding head and the XZ axis drive module.

7. An automatic disc welding machine according to claim 6, characterized in that: The welding mechanism also includes a temperature sensor, which is installed inside a protective cover and is used to detect the workpiece temperature.

8. An automatic disc welding machine according to claim 6, characterized in that: A height sensor is installed on one side of the welding head.

9. An automatic disc welding machine according to claim 6, characterized in that: A weld seam tracking sensor is provided on one side of the welding head.

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