Workpiece slag removal system

Abstract

This invention discloses a workpiece slag removal system for removing slag from the slag area of ​​a workpiece. The system includes at least one slag removal module, comprising: a workpiece fixture for loading the workpiece and exposing the slag area; a conveying device for conveying the workpiece fixture to the slag removal station; and a slag removal device including a brush head assembly and a moving mechanism for driving the brush head assembly to move along the length or width of the slag area to clean the slag. The workpiece slag removal system disclosed in this invention can achieve automatic removal of workpiece slag, improve slag removal efficiency, and save labor costs.

Description

Technical Field

[0001] This invention relates to the field of workpiece welding technology, and in particular to a workpiece welding slag removal system. Background Technology

[0002] After spot welding a workpiece to a weldment, a large amount of weld slag is usually generated on the side of the workpiece facing away from the weldment. This slag needs to be removed before secondary spot welding to prevent welding gaps. In previous techniques, slag removal was typically done manually, following this process: First, the workpiece is placed under a microscope to inspect the slag. The monitor is used to check for uniformity in weld spot size and location, weld spot misalignment, spot penetration, blackening, yellowing, weld marks, missed welds, incomplete welds, and other defects. Then, based on the inspection results, the areas requiring slag removal are determined. Finally, appropriate removal tools, such as wire brushes, grinding wheels, sandpaper, and blades, are selected to efficiently and safely remove the slag.

[0003] Traditional welding slag removal methods have the following drawbacks: (i) low efficiency: the process relies on manual operation, which is not only time-consuming, but also greatly affected by the operator's skill level; (ii) waste of manpower: a large number of manpower are required for repetitive labor, which increases labor costs; (iii) unstable quality: human factors may lead to incomplete removal of welding slag or damage to the surface of the workpiece. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a workpiece slag removal system that can efficiently, automatically and thoroughly remove workpiece welding slag.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: providing a workpiece slag removal system for removing slag from the slag area of ​​a workpiece, comprising at least one slag removal module, wherein the slag removal module includes:

[0006] A workpiece fixture is used to load the workpiece and expose the weld slag area of ​​the workpiece.

[0007] A conveying device for transporting workpiece fixtures to the slag removal station; and

[0008] A slag removal device includes a brush head assembly and a moving mechanism for driving the brush head assembly to move along the length or width of the slag area to remove the slag.

[0009] Furthermore, when the moving mechanism is configured to move along the length direction of the slag region, the dimension of the brush head assembly in the width direction of the slag region is greater than or equal to the width of the slag region; when the moving mechanism is configured to move along the width direction of the slag region, the dimension of the brush head assembly in the length direction of the slag region is greater than or equal to the length of the slag region.

[0010] Furthermore, the welding slag area is distributed on the first surface of the workpiece, and when the workpiece is loaded onto the workpiece fixture, the first surface of the workpiece is exposed on the side of the workpiece fixture facing the brush head assembly.

[0011] The moving mechanism is configured to move along the length or width direction of the first surface of the workpiece;

[0012] When the moving mechanism is configured to move along the length direction of the first surface of the workpiece, the dimension of the brush head assembly in the width direction of the first surface is greater than or equal to the width of the first surface; when the moving mechanism is configured to move along the width direction of the first surface of the workpiece, the dimension of the brush head assembly in the length direction of the first surface is greater than or equal to the length of the first surface.

[0013] Furthermore, the workpiece fixture includes a fixture table and a workpiece loading section disposed along the moving direction of the slag removal device, the workpiece being loaded at the workpiece loading section, and a first surface of the workpiece being exposed on the side of the workpiece loading section facing the brush head assembly; or

[0014] The workpiece fixture includes a fixture table and multiple workpiece loading sections arranged along the moving direction of the slag removal device; the moving distance of the slag removal device is adapted to the total distribution distance of the multiple workpiece loading sections so as to remove the slag from all workpieces on the workpieces in one movement.

[0015] Furthermore, the plurality of workpiece loading units are arranged in a rectangular array on the fixture table; the slag removal devices are configured to be a plurality of those distributed along the column direction or row direction, the number of the plurality of slag removal devices corresponding to the number of columns or rows, and the plurality of slag removal devices are used to move along the row direction or column direction so as to remove the slag of the workpieces on all workpiece loading units of the corresponding row or column in one movement.

[0016] Furthermore, the workpiece has an overall U-shaped structure, with a straight section and two bent sections formed at both ends of the straight section. A welded part is welded to a second surface on the straight section that is away from the first surface, and the area on the first surface corresponding to the welded part forms the weld slag area.

[0017] The workpiece loading section is provided with at least one workpiece loading position. The workpiece loading position has a platform for supporting the straight section, two slots formed at both ends of the platform for inserting two bent sections, a clearance space formed on the platform corresponding to the position of the welded part, and a positioning unit for positioning the workpiece at the workpiece loading position. When the workpiece is positioned at the workpiece loading position, the first surface of the straight section faces the direction of the brush head assembly, the second surface is attached to the platform, the welded part is accommodated in the clearance space, and the two bent sections are respectively inserted into the two slots.

[0018] Furthermore, the positioning unit is configured as a first adsorption unit for adsorbing the second surface of the workpiece. The first adsorption unit includes an adsorption channel and an adsorption connector disposed on the workpiece loading part. The inner end of the adsorption channel passes through one side of the platform facing the second surface, and the outer end passes through the other side of the workpiece loading part and is connected to the adsorption connector. The adsorption connector is connected to the adsorption device.

[0019] Furthermore, a slag trough is provided on the platform at one end away from the slag area along the moving direction of the slag removal device of the workpiece, and the slag trough is located on the two opposite sides of the straight section.

[0020] Furthermore, it also includes:

[0021] A workpiece vibration feeding device is used to vibrate and feed workpieces to the feeding position; and

[0022] The first transfer device is used to transfer the workpiece at the loading position to the workpiece fixture.

[0023] Furthermore, the conveying device is also used to convey the workpiece fixture at the slag removal station to the unloading station; the workpiece slag removal system also includes:

[0024] A receiving device is used to collect workpieces after the welding slag has been removed; and

[0025] The second transfer device is used to transfer the workpiece at the unloading position to the receiving device.

[0026] The workpiece removal system of the present invention has the following beneficial effects: (i) Compared with the traditional method of manually removing welding slag, a dedicated workpiece fixture is configured for the workpiece, exposing the welding slag area of ​​the workpiece outside the workpiece fixture. A conveying device is configured to transport the workpiece fixture to the welding slag removal device, which moves along the length or width of the welding slag area, thereby effectively and comprehensively removing the welding slag from the surface of the workpiece. Replacing the manual method with an automated method of automatic workpiece conveying and automatic welding slag removal overcomes the difficulties of low efficiency, low capacity and high cost of traditional manual welding slag removal, greatly saving labor and time costs, and reducing costs while increasing efficiency. In the actual application of the U-shaped workpieces described above, the production capacity can be increased from 0.189Kpcs / H / person to 3.048Kpcs / H / machine, an increase of about 16 times; the yield rate has increased from 99.14% to 99.33%. If the order demand per shift (10H) is 30Kpcs, the traditional solution requires 30 / (10*0.189) = 16 (people) to meet the demand, while the new solution only requires one person to operate the machine to meet the demand, saving 16 people in labor costs, and the cost reduction and efficiency improvement results are significant. (II) When the moving mechanism is configured to move along the length of the slag area, the dimension of the brush head assembly in the width direction of the slag area is greater than or equal to the width of the slag area. When the moving mechanism is configured to move along the width direction of the slag area, the dimension of the brush head assembly in the length direction of the slag area is greater than or equal to the length of the slag area. The size of the brush head assembly can be configured according to the moving direction of the moving mechanism so that the brush head assembly can effectively and comprehensively cover the slag area, preventing slag from being missed and thoroughly removing slag from the workpiece surface. (III) The workpiece fixture is configured as a rectangular array of multiple rows and columns of workpiece loading positions. At the same time, the slag removal device is configured as multiple units corresponding to the number and position of multiple rows or columns. Only one movement of the brush head assembly is needed to remove the slag from all workpiece loading positions, which multiplies the slag removal efficiency. (IV) The conveying device adopts an alternating double linear module, which is used to alternately convey the workpiece fixture to the slag removal station. This allows the slag removal device to alternately remove the workpieces on the two linear modules, improving the utilization rate of the slag removal device and increasing the removal efficiency. (v) The workpiece vibration feeding device, the first transfer device, the second transfer device and the receiving device are adopted. The control device is electrically connected to the workpiece vibration feeding device, the first transfer device, the conveying device, the welding slag removal device and the receiving device. The operation of each device is uniformly scheduled by the control device to realize a series of automated processes such as workpiece feeding, transfer, conveying, welding slag removal, unloading and receiving, making the workpiece welding slag removal system more automated.(vi) A dedicated workpiece fixture is configured for the workpiece. The workpiece fixture has a platform adapted to the straight section of the workpiece. Two insertion slots are formed at both ends of the platform for inserting two curved sections. A clearance space is set at the position of the platform corresponding to the welded part. When the workpiece is loaded on the workpiece fixture, the second surface of the workpiece can be pressed against the platform. The first adsorption unit set on the workpiece fixture adsorbs the second surface of the workpiece, which can effectively prevent the workpiece from moving without damaging the workpiece. The dedicated workpiece fixture can be configured according to the structure of the workpiece to ensure that the slag area of ​​the workpiece faces the brush head assembly and ensure that the slag can be completely removed. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a schematic diagram of one embodiment of the workpiece welding slag removal system of the present invention.

[0029] Figure 2 This is a schematic diagram of the slag removal module in one embodiment of the workpiece slag removal system of the present invention.

[0030] Figure 3 yes Figure 2 A magnified view of part B1 in the middle.

[0031] Figure 4 This is a schematic diagram of the conveying device and the slag removal device in one embodiment of the workpiece slag removal system of the present invention.

[0032] Figure 5 This is a schematic diagram of the workpiece fixture in one embodiment of the workpiece slag removal system of the present invention.

[0033] Figure 6 This is a schematic diagram of the workpiece structure in one embodiment of the workpiece slag removal system of the present invention.

[0034] Figure 7 yes Figure 5 A magnified view of part B2 in the middle.

[0035] The diagrams in the instruction manual are labeled as follows:

[0036] Workpiece A; First surface Aa; Second surface Ab; Straight section A10; Weld slag area A100; Bending section A20;

[0037] 1000 welding slag removal modules;

[0038] Workpiece vibratory feeding device 100; vibratory plate assembly 110; feeding channel 120;

[0039] First transfer device 200; first pickup unit 210; first shaft 220; second shaft 230; third shaft 240;

[0040] Conveying device 300; input end 300a; output end 300b; first linear module 310; second linear module 320;

[0041] Welding slag removal device 400; brush head assembly 410; lifting mechanism 411; horizontal rotation drive mechanism 412; brush head 413; moving mechanism 420;

[0042] Second transfer device 500; Second pickup unit 510;

[0043] 600 receiving device;

[0044] Workpiece fixture 700; workpiece loading section 710; workpiece loading position 711; platform 711a; slot 711b; clearance space 711c; slag trough 711d; adsorption channel 711e; adsorption connector 711f; fixture table 720. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0048] Please see Figure 1 , Figure 1 This is a schematic diagram of one embodiment of the workpiece welding slag removal system of the present invention. The workpiece welding slag removal system includes two sets of welding slag removal modules 1000 arranged in parallel. The two sets of welding slag removal modules 1000 are... Figure 1The two sets of slag removal modules 1000 are arranged in a parallel arrangement, with identical or similar structures or functions. Each set of slag removal modules 1000 is designed with eight slag removal points, for a total of sixteen slag removal points. Those skilled in the art will understand that the slag removal modules 1000 are not limited to the two sets described in this embodiment; they can be one set or more sets. Furthermore, the slag removal modules 1000 are not limited to a parallel distribution, nor are they limited to a front-to-back parallel distribution. A parallel distribution can make the overall system layout more compact, reduce the footprint, and decrease the length of the wiring harness.

[0049] Please see Figure 2 The following description uses one set of slag removal modules 1000 as an example to illustrate its structure and function. The slag removal module 1000 can be configured to automatically execute a series of processes including workpiece A loading, picking and transferring, slag removal, unloading, and receiving. Two automated slag removal modules 1000 constitute an automated workpiece slag removal system. To achieve the above-mentioned automated process, the slag removal module 1000 is configured to include components that can move along the conveying direction (e.g., ...). Figure 1 The workpiece vibration feeding device 100, the first transfer device 200, the conveying device 300, the welding slag removal device 400, the second transfer device 500, and the receiving device 600 are arranged sequentially from left to right. All of the above devices are connected to a controller (such as a PLC controller). The controller (such as a PLC controller) can schedule each device or mechanism in real time to realize the automated process from workpiece A feeding to receiving.

[0050] The workpiece vibration feeding device 100 is used to vibrate and feed workpiece A to the feeding position. It can adopt the existing vibratory feeder structure, which has a vibratory feeder assembly 110 and a feeding channel 120 connected to the outlet end of the vibratory feeder assembly 110. The output end of the feeding channel 120 (the end away from the vibratory feeder assembly 110) is close to the input end of the conveying device 300. The output end of the feeding channel 120 is configured as the feeding position of workpiece A.

[0051] Please see Figure 3The slag removal module 1000 further includes a workpiece fixture 700 disposed on the conveying device 300. The workpiece fixture 700 is used to load at least one workpiece A and expose its slag area. The first transfer device 200 is used to transfer workpiece A from the loading position to the workpiece fixture 700. The first transfer device 200 includes a first moving unit and a first picking unit 210 disposed on the first moving unit. The first moving unit can be configured as a three-axis moving module (the solution adopted in this embodiment) or a robotic arm, etc. The first picking unit 210 is preferably configured as a second adsorption unit, which can protect the surface of workpiece A from scratches to the greatest extent.

[0052] The first axis 220 of the three-axis moving module can be disposed outside one side of the conveying device 300 along the conveying direction; the second axis 230 of the three-axis moving module is disposed above the conveying device 300 along a direction perpendicular to the conveying direction on a horizontal plane, and can reciprocate on the first axis 220; the third axis (Z-axis) 240 of the three-axis moving module is disposed on the second axis 230, and can reciprocate on the second axis 230; the second adsorption unit can move vertically on the third axis 240. The output end of the workpiece vibration feeding device 100 described above can extend horizontally to the conveying device 300 and is located below the second adsorption unit.

[0053] Please see Figure 4 The conveying device 300 is used to convey the workpiece fixture 700 to the slag removal station. The end of the conveying device 300 closest to the workpiece vibrating loading device 100 is configured as an input end 300a, and the end furthest from the workpiece vibrating loading device 100 is configured as an output end 300b. The first transfer device 200 described above is used to transfer the workpiece A at the loading position to the workpiece fixture 700 located at the input end 300a of the conveying device 300. The output end 300b of the conveying device 300 can be configured as the unloading position of workpiece A (when the workpiece fixture 700 moves to this output end 300b, the second transfer device 500 picks up workpiece A from the workpiece fixture 700 here and transfers it to the receiving device 600). The conveying device 300 can be configured as a reciprocating conveying device 300 capable of conveying the workpiece fixture 700 from the input end 300a to the output end 300b and from the output end 300b to the input end 300a. The conveying device 300 may be, but is not limited to, a conveyor belt conveyor 300, a linear motion module, etc.

[0054] In this embodiment, the conveying device 300 is specifically configured as an alternating double linear module, such as a double-screw alternating linear module. As the name suggests, the alternating double linear module includes two parallel first linear modules 310 and second linear modules 320. Workpiece fixtures 700 are mounted on the slides of both the first linear modules 310 and 320. The first linear modules 310 and 320 alternately move their respective workpiece fixtures 700 back and forth between the input end 300a and the output end 300b, thereby causing the workpiece fixtures 700 to alternately reach (and successively reach) the slag removal station. This allows sufficient time for the slag removal device 400 to smoothly remove slag from the workpiece A on the workpiece fixtures 700 that alternately reach the slag removal station; it also improves the working efficiency of the slag removal device 400, the slag removal module 1000, and even the workpiece slag removal system.

[0055] Please see Figure 5 The workpiece fixture 700 is configured with four workpiece loading sections 710 (four cavities), meaning each workpiece fixture 700 includes a fixture platform 720 and four workpiece loading sections 710 arranged along the moving direction of the slag removal device 400. Each workpiece loading section 710 has a workpiece loading position 711 for loading workpiece A to ensure that workpiece A does not shift during the slag removal process. The four workpiece loading sections 710 are arranged in a rectangular array on the fixture platform 720, for example, in two columns along the conveying direction, with each column having two rows, so that the four workpiece loading sections 710 form a 2*2 rectangular array.

[0056] Those skilled in the art will understand that the workpiece loading section 710 is not limited to being configured as four workpiece loading sections 710, but can be configured as fewer, such as one, two, three, or more workpiece loading sections 710. The arrangement of the workpiece loading sections 710 is also not limited to a rectangular array; for example, the workpiece loading sections 710 can also be arranged in a column, with each column containing one or more workpiece loading sections 710. Each workpiece loading section 710 is not limited to loading only one workpiece A; for example, multiple workpiece loading positions 711 distributed along the moving direction of the slag conveying device 300 can be provided at each loading section, so that each workpiece loading section 710 can load multiple workpieces A, and the multiple workpieces A are distributed along the moving direction of the slag removal device 400.

[0057] Please see Figure 6In one embodiment, workpiece A has a first surface Aa and a second surface Ab arranged opposite to each other. A weldment is welded to the second surface Ab of workpiece A. Weld slag is formed on the first surface Aa of workpiece A in the area corresponding to the weldment (e.g., the area where the first surface Aa faces the weldment), hence this area is called the weld slag area A100. When workpiece A is loaded onto the workpiece loading position 711, its second surface Ab faces the workpiece loading position 711, and its first surface Aa faces away from the workpiece loading position 711, thereby ensuring that both the first surface Aa and the weld slag area A100 are exposed on the side of the workpiece fixture 700 (workpiece loading part 710) facing the brush head assembly 410 of the weld slag removal device 400. In this embodiment, the workpiece A has an overall U-shaped structure, having a straight section A10 and two bent sections A20 formed at both ends of the straight section A10. The weldment described above is welded to the second surface Ab of the straight section A10, and the first surface Aa of the straight section A10 corresponds to the area of ​​the weldment to form the weld slag area A100.

[0058] Please see Figure 7 The workpiece fixture 700, workpiece loading section 710, and workpiece loading position 711 are configured according to the workpiece A structure. Corresponding to the workpiece A structure shown in the above embodiment, the workpiece loading section 710 is provided with at least one workpiece loading position 711. The workpiece loading position 711 has a platform 711a for supporting the straight section A10, two insertion slots 711b formed at both ends of the platform 711a for inserting two bent sections A20, a clearance space 711c formed on the platform 711a corresponding to the position of the welded part, and a positioning unit for positioning the workpiece A at the workpiece loading position 711. A slag groove 711d is provided on the platform 711a at one end away from the slag region A100 along the moving direction of the slag removal device 400 of the workpiece A. The slag groove 711d is located outside the two opposite sides of the straight section A10. The positioning unit can be configured as a first adsorption unit for adsorbing the second surface Ab of workpiece A. The first adsorption unit includes an adsorption channel 711e and an adsorption connector 711f disposed on the workpiece loading part 710 (see...). Figure 6 The inner end of the adsorption channel 711e penetrates one side of the platform 711a facing the second surface Ab, and the outer end penetrates the other side of the workpiece loading part 710 and is connected to the adsorption connector 711f, which is connected to the adsorption device. When the workpiece A is positioned at the workpiece loading position 711 by the positioning unit, the first surface Aa of the straight section A10 faces the direction of the brush head assembly 410, the second surface Ab is attached to the platform 711a, the welded part is accommodated in the clearance space 711c, and the two bent sections A20 are respectively inserted into the two slots 711b.

[0059] The slag removal device 400 is mounted above the conveying device 300 and located between the input end 300a and the output end 300b. The slag removal station is configured to be located on the conveying device 300 below the slag removal device 400. During the process of the conveying device 300 conveying the workpiece fixture 700 to the output end 300b, the workpiece fixture 700 is first conveyed to the slag removal station below the slag removal device 400 and paused there. After the slag on workpiece A is removed by the slag removal device 400, the conveying device 300 continues to convey the workpiece fixture 700 from the slag removal station to the output end 300b, so that the workpiece fixture 700 is located at the unloading position, waiting for unloading.

[0060] The moving distance of the slag removal device 400 is adapted to the total distribution distance of the plurality of workpiece loading sections 710, so that the slag of workpiece A on all workpiece loading sections 710 can be removed in one movement. The slag removal device 400 will be described exemplarily below using the above-described 2*2 distributed workpiece loading sections 710 as an example.

[0061] The slag removal devices 400 are configured in pairs, distributed along a column direction or a row direction (conveyor direction). Each pair of slag removal devices 400 is designed to move along the row or column direction to remove slag from workpieces A on all workpiece loading sections 710 in a single movement. Those skilled in the art will understand that the number of slag removal devices 400 is not limited to two, but is determined according to the needs of different embodiments. For example, in some embodiments, when the multiple workpiece loading sections 710 are arranged in a column or a row, only one slag removal device 400 needs to be configured to move along the arrangement direction. In other embodiments, when the multiple workpiece loading sections 710 are arranged in more rows or more columns, the number of slag removal devices 400 can be configured to match the number of columns or rows. The moving distance of the slag removal device 400 is also set according to the number of workpiece loading positions 711 and the total distribution distance. For example, when there is only one workpiece loading position 711, the moving distance of the slag removal device 400 only needs to be determined according to the length or width of one workpiece A. When there are multiple workpieces A distributed in rows or columns, the moving distance is determined according to the total distribution length or width of the multiple workpieces A distributed in rows or columns.

[0062] The slag removal device 400 includes a brush head assembly 410 and a moving mechanism 420 for driving the brush head assembly 410 to move along the length or width of the slag region A100 to remove slag. The brush head assembly 410 includes a lifting mechanism 411 connected to the moving mechanism 420, a horizontal rotation drive mechanism 412 disposed on the lifting mechanism 411, and a brush head 413 disposed on the horizontal rotation drive mechanism 412. The brush head 413 rotates around its axis under the drive of the horizontal rotation mechanism. The brush head 413 may be made of materials such as ceramic, carbon fiber, or steel. When the moving mechanism 420 is configured to move along the length direction of the slag region A100, the dimension of the brush head assembly 410 in the width direction of the slag region A100 is greater than or equal to the width of the slag region A100; when the moving mechanism 420 is configured to move along the width direction of the slag region A100, the dimension of the brush head assembly 410 in the length direction of the slag region A100 is greater than or equal to the length of the slag region A100.

[0063] Specifically, the moving mechanism 420 is configured to move along the length or width of the first surface Aa of the workpiece A; when the moving mechanism 420 is configured to move along the length of the first surface Aa of the workpiece A, the dimension of the brush head assembly 410 in the width direction of the first surface Aa is greater than or equal to the width of the first surface Aa; when the moving mechanism 420 is configured to move along the width direction of the first surface Aa of the workpiece A, the dimension of the brush head assembly 410 in the length direction of the first surface Aa is greater than or equal to the length of the first surface Aa.

[0064] This article continues with Figure 5 Taking the 2*2 workpiece loading section 710 and the distribution of workpiece A loaded thereon as an example, the brush head assembly 410 will be further explained in the length and width movement directions. Figure 5In this configuration, the width of workpiece A is defined as distributed along the row direction (conveyor direction), and the length direction is defined as distributed along the direction perpendicular to the conveyor direction (column direction). The moving mechanisms 420 of the two slag removal devices 400 are arranged along the row direction (conveyor direction), and the movement of the two moving mechanisms 420 along the row direction means that the two moving mechanisms 420 move along the length direction of workpiece A. A portal frame is spanned in the direction perpendicular to the conveyor direction, and the two moving mechanisms 420 are located on the portal frame plus the two sides facing the conveyor direction. The brush head assemblies 410 of the two slag removal devices are respectively connected to the two moving mechanisms 420. Driven by the moving mechanisms 420, the moving distance of each brush head assembly 410 is greater than or equal to the total length of the two workpieces A distributed in each column, so that the slag on all workpieces A on the workpiece loading section 710 can be removed in one movement.

[0065] Please continue reading Figure 2 The receiving device 600 is positioned near the output end 300b of the conveying device 300. The receiving device 600 can be configured as a receiving box or receiving bin for receiving workpiece A after the welding slag has been removed. The second transfer device 500 is also positioned near the output end 300b (unloading position) of the conveying device 300 for transferring workpiece A from the unloading position to the receiving device 600. The structure and function of the second transfer device 500 are the same as or similar to those of the first transfer device 200, and it includes a second moving unit and a second picking unit 510 disposed on the second moving unit. The second moving unit can also be configured as a three-axis moving module or a robot, etc. The first axis 520 of the three-axis moving module can be distributed along the conveying direction; the second axis of the three-axis moving module is distributed along a direction perpendicular to the conveying direction on a horizontal plane and can reciprocate on the first axis 520; the third axis (Z-axis) of the three-axis moving module is set on the second axis 530 and can reciprocate on the second axis 530; the second picking unit 510 can move vertically on the third axis 540. The second picking unit 510 is configured as a third adsorption unit, which can protect the surface of workpiece A from scratches to the greatest extent.

[0066] Based on the above embodiments, the workflow of the workpiece removal system of the present invention is as follows: (I) Vibration feeding of workpiece A: The vibratory plate assembly 110 of the workpiece vibration feeding device 100 continuously vibrates and outputs workpiece A to the feeding position of the feeding channel 120; (II) The second adsorption unit of the first transfer device 200 adsorbs workpiece A at the feeding position and moves it to the workpiece fixture 700 at the input end 300a of the first linear module 310 and the second linear module 320 of the conveying device 300 under the drive of its first moving unit; (III) When the workpiece fixture 700 at the input end 300a of the first linear module 310 or the second linear module 320 is full of workpiece A, the first linear module 310 or the second linear module 320... 320 transports the respective workpiece fixtures 700 to the slag removal station; (iv) the moving mechanism 420 of the slag removal mechanism drives the brush head assembly 410 to move along the length direction of the workpiece A so that the brush head assembly 410 cleans the slag on the first surface Aa of the workpiece A; (v) after the slag on the workpiece A on the first linear module 310 or the second linear module 320 is removed, the first linear module 310 or the second linear module 320 transports the workpiece fixture 700 to the unloading position at the conveying end; (vi) the third adsorption unit of the second transfer device 500 adsorbs the workpiece A at the unloading position and moves to the receiving device 600 under the drive of its second moving unit so as to collect the workpiece A in the receiving device 600.

[0067] In summary, the workpiece removal system of the present invention has the following beneficial effects: (i) Compared with the traditional method of manually removing welding slag, a dedicated workpiece fixture 700 is configured for workpiece A, so that the welding slag area A100 of workpiece A is exposed outside the workpiece fixture 700. A conveying device 300 is configured to convey the workpiece fixture 700 to the welding slag removal device 400, so that the welding slag removal device 400 moves along the length or width direction of the welding slag area A100, thereby effectively and comprehensively removing the welding slag from the surface of workpiece A. Replacing the manual method with an automated method of automatically conveying and removing welding slag from workpiece A overcomes the difficulties of low efficiency, low capacity and high cost of traditional manual welding slag removal, greatly saving labor time and costs, and reducing costs and increasing efficiency. In the actual application of the U-shaped workpiece A in the above-described implementation method, the production capacity can be increased from 0.189Kpcs / H / person to 3.048Kpcs / H / machine, an increase of about 16 times; the yield rate has increased from 99.14% to 99.33%. If the order demand per shift (10H) is 30Kpcs, the traditional solution requires 30 / (10*0.189) = 16 (people) to meet the demand, while the new solution only requires one person to operate the machine to meet the demand, saving 16 people in labor costs, and the cost reduction and efficiency improvement results are significant. (ii) When the moving mechanism 420 is configured to move along the length direction of the slag area A100, the size of the brush head assembly 410 in the width direction of the slag area A100 is greater than or equal to the width of the slag area A100. When the moving mechanism 420 is configured to move along the width direction of the slag area A100, the size of the brush head assembly 410 in the length direction of the slag area A100 is greater than or equal to the length of the slag area A100. The size of the brush head assembly 410 can be configured according to the moving direction of the moving mechanism 420 so that the brush head assembly 410 can effectively and completely cover the slag area A100, prevent the slag from being missed, and thoroughly remove the slag from the surface of the workpiece A. (III) The workpiece fixture 700 is configured as a rectangular array of multiple rows and columns of workpiece loading positions 711. Simultaneously, multiple slag removal devices 400 are configured corresponding to the number and position of the multiple rows or columns. Only one movement of the brush head assembly 410 is needed to remove slag from all workpiece loading positions 711, significantly improving slag removal efficiency. (IV) The conveying device 300 adopts an alternating double linear module, which is used to alternately convey the workpiece fixture 700 to the slag removal station. This allows the slag removal device 400 to alternately remove workpieces A from the two linear modules, increasing the utilization rate of the slag removal device 400 and improving removal efficiency.(V) The workpiece vibration feeding device 100, the first transfer device 200, the second transfer device 500 and the receiving device 600 are adopted. The control device is electrically connected to the workpiece vibration feeding device 100, the first transfer device 200, the conveying device 300, the welding slag removal device 400 and the receiving device 600. The operation of each device is uniformly scheduled by the control device to realize a series of automated processes for workpiece A from feeding, transfer, conveying, welding slag removal, unloading and receiving, making the workpiece welding slag removal system more automated. (vi) A dedicated workpiece fixture 700 is configured for workpiece A. The workpiece fixture 700 has a platform 711a adapted to the straight section A10 of workpiece A. Two insertion slots 711b are formed at both ends of the platform 711a for inserting two curved sections. An avoidance space 711c is provided at the position of the welding part on the platform 711a. When workpiece A is loaded on the workpiece fixture 700, the second surface Ab of workpiece A can be pressed against the platform 711a. The first adsorption unit provided on the workpiece fixture 700 adsorbs the second surface Ab of workpiece A, which can effectively prevent workpiece A from moving without damaging workpiece A. The dedicated workpiece fixture 700 can be configured according to the structure of workpiece A to ensure that the slag area A100 of workpiece A faces the brush head assembly 410 and ensure that the slag can be completely removed.

[0068] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A workpiece slag removal system for removing slag from slag areas of a workpiece, characterized in that, Includes at least one slag removal module, said slag removal module comprising: A workpiece fixture is used to load workpieces and expose the slag area of ​​the workpieces. The workpiece fixture includes a fixture table and a plurality of workpiece loading parts arranged along the moving direction of the slag removal device. The plurality of workpiece loading parts are distributed in a rectangular array on the fixture table. A conveying device for transporting workpiece fixtures to the slag removal station; and A slag removal device includes a brush head assembly and a moving mechanism for driving the brush head assembly to move along the length or width of a slag area to remove slag. The moving distance of the slag removal device is adapted to the total distribution distance of the plurality of workpiece loading sections, so as to remove slag from all workpieces on all workpiece loading sections in a single movement. The slag removal device is configured as a plurality of devices distributed along a column direction or a row direction, the number of which corresponds to the number of columns or rows, and the plurality of slag removal devices are used to move along the row direction or column direction, so as to remove slag from all workpieces on all workpiece loading sections of the corresponding row or column in a single movement.

2. The workpiece welding slag removal system as described in claim 1, characterized in that: When the moving mechanism is configured to move along the length of the slag region, the dimension of the brush head assembly in the width direction of the slag region is greater than or equal to the width of the slag region. When the moving mechanism is configured to move along the width direction of the slag region, the dimension of the brush head assembly in the length direction of the slag region is greater than or equal to the length of the slag region.

3. The workpiece welding slag removal system as described in claim 1, characterized in that: The slag area is distributed on the first surface of the workpiece. When the workpiece is loaded onto the workpiece fixture, the first surface of the workpiece is exposed on the side of the workpiece fixture facing the brush head assembly. The moving mechanism is configured to move along the length or width direction of the first surface of the workpiece; When the moving mechanism is configured to move along the length direction of the first surface of the workpiece, the dimension of the brush head assembly in the width direction of the first surface is greater than or equal to the width of the first surface; When the moving mechanism is configured to move along the width direction of the first surface of the workpiece, the dimension of the brush head assembly in the length direction of the first surface is greater than or equal to the length of the first surface.

4. The workpiece welding slag removal system as described in claim 3, characterized in that: The workpiece has a U-shaped structure, with a straight section and two bent sections formed at both ends of the straight section. A welded part is welded to a second surface on the straight section that is away from the first surface. The area on the first surface corresponding to the welded part forms the weld slag area. The workpiece loading section is provided with at least one workpiece loading position. The workpiece loading position has a platform for supporting the straight section, two slots formed at both ends of the platform for inserting two bent sections, a clearance space formed on the platform corresponding to the position of the welded part, and a positioning unit for positioning the workpiece at the workpiece loading position. When the workpiece is positioned at the workpiece loading position, the first surface of the straight section faces the direction of the brush head assembly, the second surface is attached to the platform, the welded part is accommodated in the clearance space, and the two bent sections are respectively inserted into the two slots.

5. The workpiece welding slag removal system as described in claim 4, characterized in that: The positioning unit is configured as a first adsorption unit for adsorbing the second surface of a workpiece. The first adsorption unit includes an adsorption channel and an adsorption connector disposed on the workpiece loading part. The inner end of the adsorption channel passes through one side of the platform facing the second surface, and the outer end passes through the other side of the workpiece loading part and is connected to the adsorption connector. The adsorption connector is connected to the adsorption device.

6. The workpiece welding slag removal system as described in claim 4, characterized in that: A slag trough is provided on the platform at one end away from the slag area along the moving direction of the slag removal device of the workpiece, and the slag trough is located on the two opposite sides of the straight section.

7. The workpiece slag removal system according to any one of claims 1 to 6, characterized in that, Also includes: A workpiece vibration feeding device is used to vibrate and feed workpieces to the feeding position. as well as The first transfer device is used to transfer the workpiece at the loading position to the workpiece fixture.

8. The workpiece slag removal system according to any one of claims 1 to 6, characterized in that, The conveying device is also used to convey the workpiece fixture at the slag removal station to the unloading station; the workpiece slag removal system further includes: A receiving device is used to collect workpieces after the welding slag has been removed; and The second transfer device is used to transfer the workpiece at the unloading position to the receiving device.

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