A welding workbench for processing metal parts
By designing a welding workbench for metal parts processing, and using technical means such as push racks and slag collecting boxes, the problems of small number of parts, insufficient accuracy and efficiency in the welding process in the prior art are solved, and efficient, intelligent, accurate and environmentally friendly welding effects are achieved.
Patent Information
- Application Number
- CN202510272577.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2045-03-10
AI Technical Summary
In the welding process of metal parts, the number of parts that can be welded in a single time is small, which leads to time-consuming and labor-intensive welding, insufficient accuracy, intelligence and efficiency. At the same time, the high-temperature residues and smoke generated during the welding process affect the environment and health.
A welding workbench for metal parts processing is designed, using a push frame to perform the bonding positioning of metal parts and remove the finished product. The slag collection box lifting and adjustment controls the cleaning of welding residues, and cooperates with the welding device to achieve batch, intelligent, accurate, environmentally friendly and efficient welding.
Through this welding workbench, the batch, intelligence, precision and environmental protection of metal parts welding are improved, environmental pollution and staff health risks are reduced during the welding process, and welding efficiency and accuracy are improved.
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Figure CN119748004B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of metal welding, in particular to a welding workbench for processing metal parts. Background Art
[0002] In the processing of metal parts, welding is a key process, and its main functions include:
[0003] 1. Connection function: Welding firmly connects metal parts by melting or pressurizing, and is widely used in the manufacture of large structural parts or complex components.
[0004] 2. Repair function: Welding can be used to repair worn, damaged or defective parts, such as filling cracks or repairing breaks to extend service life.
[0005] 3. Enhanced performance: Welding can improve the strength, wear resistance and corrosion resistance of parts and components, and is suitable for parts under high load or harsh environments.
[0006] 4. Manufacturing complex shapes: Welding can combine multiple simple parts into complex shapes to meet special design requirements and reduce processing difficulty and cost.
[0007] 5. Improve production efficiency: The welding process is highly automated and can quickly complete mass production, improve efficiency and reduce costs.
[0008] 6. Material diversity: Welding is applicable to a variety of metal materials, such as steel, aluminum, copper, etc., and can achieve the connection of different materials, broadening the scope of application.
[0009] 7. Sealing: Welding can provide good sealing effect and is suitable for occasions that require leak-proofing, such as pressure vessels and pipelines.
[0010] 8. Economy: Welding is usually more economical than riveting, bolting and other methods, and can reduce material waste.
[0011] A Chinese patent document with authorization announcement number CN221833618U discloses a metal product welding platform, including a support table, the upper surface of which is fixedly connected to two support plates, the side surfaces of the two support plates are rotatably connected to a first double-headed screw, the outer surface of the first double-headed screw is screwed together and connected to two limit plates, and the lower surfaces of the two limit plates slide relative to the upper surface of the support table, the inner top surfaces of the two limit plates are slidably connected to a clamping plate, and the upper surface of the support table is slidably connected to two clamping plates.
[0012] The existing technology can only weld a small number of metal parts at a time during metal processing, and it is necessary to repeatedly position, weld, and cut materials to complete batch welding processing. Therefore, the welding process is time-consuming and labor-intensive, and the welding accuracy, intelligence, and efficiency are insufficient. In addition, high-temperature metal residues and smoke are easily generated during the welding process, which not only affects the environment and endangers the health of workers, but also affects the welding effect. Summary of the invention
[0013] In view of the problems existing in the background technology, a welding workbench for processing metal parts is proposed. The present invention pushes the metal parts to move by a pushing frame, so that the welding surface can be fitted and positioned and the finished product can be removed after welding. The slag collecting box is raised and lowered to control the cleaning of welding residues and adjust the height of the welding surface. The welding is then carried out in sequence with a welder, making the welding of metal parts more batch, intelligent, precise, environmentally friendly and efficient.
[0014] The invention provides a welding workbench for processing metal parts, comprising a table, a material receiving assembly, a limiting assembly, a lifting seat, a position adjustment assembly and a welder, wherein a lifting driving member is arranged at the upper end of the table, and a supporting box is arranged at the lower end; the material receiving assembly is arranged in the middle of the table, and the bottom end extends into the supporting box; the limiting assemblies are arranged in a mirror image on both sides of the material receiving assembly, and the two parts of the metal parts to be welded are limited respectively; the lifting seat is located above the table, driven to rise and fall by the lifting driving member, and a circle of sealing cover is arranged at the bottom; the position adjustment assembly is located at the center of the lifting seat and is surrounded by the sealing cover; the welder is arranged on the adjustment end of the position adjustment assembly, and the welding position is changed by rotating, moving and lifting adjustment; the limiting assembly comprises a slag collecting box with a slag collecting port that is lifted and lowered on the supporting box, a limiting platform located on the top of the slag collecting box, and a pushing frame slidably arranged on the limiting platform; by lifting and lowering the slag collecting box, on the one hand, the welding ends of the metal parts to be welded are adjusted to be aligned, and on the other hand, the slag collecting port is exposed to collect residues; by translating the pushing frame, on the one hand, the welding ends of the metal parts to be welded are pushed to fit, and on the other hand, the welded metal parts are pushed to fall into the material receiving assembly.
[0015] Preferably, the slag collecting box passes through the table top, and the bottom extends into the supporting box, and a lifting frame is provided; the lifting frame cooperates with the driving structure to drive the slag collecting box to move up and down; the slag collecting port is provided along the top side wall of the slag collecting box.
[0016] Preferably, the slag collecting port is arranged as a through hole penetrating the slag collecting box; an adjustment sleeve which can slide along the inner wall of the box is arranged in the slag collecting box; the adjustment sleeve is provided with adjustment holes which correspond one to one with the through hole; the adjustment holes are connected or interlaced with the through hole by sliding the adjustment sleeve.
[0017] Preferably, a vacuum pump is arranged in the support box; a vacuum port with a filter is arranged at the bottom of the slag collecting box; and the vacuum pump is connected through the vacuum port to form a negative pressure in the slag collecting box.
[0018] Preferably, a plurality of groups of detachable guide frames are arranged on the limiting platform; and limiting spaces matching the sizes of the metal parts are reserved between adjacent guide frames for the metal parts to be engaged and placed.
[0019] Preferably, the pushing frame spans across the multiple groups of guide frames, and both ends are slidably connected to the two sides of the limiting platform respectively; the pushing frame is provided with pushing members corresponding to the limiting spaces one by one.
[0020] Preferably, the material receiving assembly comprises a material receiving box with an opening at the top, and a material receiving net is arranged in the box; the space below the material receiving net is connected to the vacuum pump.
[0021] Preferably, a metal frame is arranged on the top of the sealing cover; an electromagnet frame 1 matching the metal frame is arranged on the lifting seat; an electromagnet frame 2 matching the metal frame is arranged on the table top; and the electromagnet frame 2 frames the limiting assembly and the material receiving assembly.
[0022] Preferably, the position adjustment assembly comprises a sliding frame slidably arranged at the bottom of the lifting seat; a rotating mounting plate is arranged on the sliding frame; a mounting seat is arranged at the bottom of the mounting plate; and a mounting frame is slidably arranged on the mounting seat.
[0023] Preferably, monitoring probes are provided on both sides of the mounting frame.
[0024] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention is provided with a retractable sealing cover to form a sealed welding environment and reduce environmental pollution. Before welding, the size of the limit space is adjusted according to the welding position of the parts and their own size, and the metal parts are limited in batches on the limit table. Then, the metal parts are pushed to move by the push frame. On the one hand, the welding surface can be fitted and positioned, and on the other hand, the finished product after welding can be removed, making the welding more efficient. Then, by adjusting the lifting and lowering of the slag collecting box, on the one hand, the size of the connecting space between the adjustment hole and the through hole can be adjusted to control the cleaning of the welding residue, and on the other hand, the height adjustment of the welding surface can be achieved, making the welding more precise. Finally, through the horizontal movement of the sliding frame, the rotation of the mounting plate and the horizontal movement of the mounting frame, the welder moves from one end of the metal part to be welded to the other end while welding, and with the monitoring, the welding of metal parts is more batch, intelligent, precise, environmentally friendly and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A schematic diagram of a welding workbench for processing metal parts in the present invention (not sealed);
[0026] Figure 2 A schematic diagram of a welding workbench for processing metal parts in the present invention (sealed);
[0027] Figure 3 It is a top view of the table in the present invention;
[0028] Figure 4 It is a cross-sectional view of the table in the present invention;
[0029] Figure 5 It is a schematic diagram of the structure of the limiting component and the material receiving component in the present invention;
[0030] Figure 6 This is a schematic diagram of the interior of the slag collecting box in the present invention;
[0031] Figure 7 It is a cross-sectional view of the slag collecting box in the present invention;
[0032] Figure 8 It is a structural schematic diagram of the limit platform in the present invention;
[0033] Fig. 9 This is a bottom view of the position adjustment component of the present invention.
[0034] 1. Table; 101. Electromagnet frame 2; 2. Support box; 3. Lifting drive member; 4. Sealing cover; 401. Metal frame; 5. Lifting seat; 6. Position adjustment assembly; 601. Mounting plate; 602. Sliding frame; 603. Mounting seat; 604. Mounting frame; 7. Limit assembly; 701. Limit table; 702. Pushing frame; 703. Slag collecting box; 704. Lifting frame; 705. Lead screw 1; 706. Adjusting sleeve; 707. Guide frame; 708. Mounting hole; 709. Slide rail; 710. Electric telescopic rod; 711. Pushing member; 712. Electric pulley structure; 713. Adjusting hole; 714. Through hole; 715. Vacuum port; 8. Material receiving assembly; 9. Vacuum pump; 10. Welding machine; 11. Monitoring probe. DETAILED DESCRIPTION
[0035] Embodiment 1, as Figure 1-Figure 4As shown, a welding workbench for metal parts processing proposed by the present invention includes a table top 1, a material receiving assembly 8, a limiting assembly 7, a lifting seat 5, a position adjustment assembly 6 and a welder 10. Lifting drive components 3 are arranged at the four top corners of the upper end of the table top 1, and a support box 2 is arranged at the lower end. The material receiving assembly 8 is arranged in the middle of the table top 1, and the bottom end extends into the support box 2. The limiting assemblies 7 are arranged in mirror images on both sides of the material receiving assembly 8, one on the left and one on the right, respectively limiting the positions of the two parts of the metal parts to be welded. The lifting seat 5 is located directly above the table top 1, and is driven to rise and fall by the lifting drive component 3, and a circle of sealing cover 4 is arranged at the bottom. The position adjustment assembly 6 is located at the center of the lifting seat 5 and is surrounded by the sealing cover 4. The welder 10 is arranged on the adjustment end of the position adjustment component 6, and the welding position is changed by rotating, moving and lifting and lowering. The limiting component 7 includes a slag collecting box 703 with a slag collecting port that is lifted and lowered on the support box 2, a limiting platform 701 located on the top of the slag collecting box 703, and a pushing frame 702 that is slidably arranged on the limiting platform 701. By lifting and lowering the slag collecting box 703, on the one hand, the welding ends of the metal parts to be welded are adjusted to be aligned, and on the other hand, the slag collecting port is exposed to collect residues; by translating the pushing frame 702, on the one hand, the welding ends of the metal parts to be welded are pushed to fit together, and on the other hand, the welded metal parts are pushed to fall into the material receiving component 8.
[0036] like Figure 5-Figure 6 As shown, the slag collecting box 703 passes through the table 1, and the bottom extends into the supporting box 2, and a lifting frame 704 is set; the lifting frame 704 cooperates with the driving structure to drive the slag collecting box 703 to move up and down; the slag collecting port is set along the top side wall of the slag collecting box 703.
[0037] It should be further explained that the driving structure includes a motor 1 located in the slag collecting box 703; the main shaft of the motor 1 is connected to a screw 1 705; the screw 1 705 is connected to the lifting frame 704 through threads to drive it to move up and down.
[0038] The slag collecting box 703 moves upward, which, on the one hand, exposes the slag collecting opening to collect the residues generated during welding and reduce environmental pollution, and on the other hand, can adjust the height of the top limit platform 701 so that the welding surfaces of the metal parts to be welded are relatively horizontal.
[0039] like Figure 7 As shown, the slag collecting port is set as a through hole 714 that penetrates the slag collecting box 703; an adjustment sleeve 706 that can slide along the inner wall of the box is set in the slag collecting box 703; the adjustment sleeve 706 is provided with adjustment holes 713 that correspond one to one with the through holes 714; through the sliding of the adjustment sleeve 706, the adjustment holes 713 are connected or staggered with the through holes 714.
[0040] It should be further explained that a cylinder is provided in the slag collecting box 703; the telescopic rod of the cylinder is connected to the adjusting sleeve 706 and drives it to move up and down.
[0041] The slag collecting box 703 rises to expose the through hole 714. The size of the connecting space between the adjusting hole 713 and the through hole 714 can be adjusted by further sliding the adjusting sleeve 706. By adjusting the connecting space, the slag of corresponding size can be selectively entered to prevent metal parts or metal blocks from falling in.
[0042] like Figure 4-Figure 6 As shown, a vacuum pump 9 is arranged in the support box 2 ; a vacuum port 715 with a filter screen is arranged at the bottom of the slag collecting box 703 ; the vacuum pump 9 is connected through the vacuum port 715 , so that negative pressure is formed in the slag collecting box 703 .
[0043] Through negative pressure, the residue is adsorbed through the through hole 714, which speeds up the cleaning during welding. At the same time, it can also adsorb the high-temperature smoke during welding. When the slag collecting box 703 is not raised, the dust in the support box 2 is adsorbed through the through hole 714 through negative pressure to complete self-cleaning.
[0044] like Figure 8 As shown, a plurality of groups of detachable guide frames 707 are arranged on the limiting platform 701; limiting spaces matching the sizes of metal parts are reserved between adjacent guide frames 707 for the metal parts to be engaged and placed.
[0045] It should be further explained that the guide frame 707 is arranged in a strip shape, and mounting heads are arranged at both ends; and mounting holes 708 corresponding to each other and used in conjunction with the mounting heads are arranged at both ends of the limiting platform 701 .
[0046] It should be further explained that the mounting head is snap-fitted and connected to the wall of the mounting hole 708 .
[0047] It should be further explained that a heating area is provided at one end of the limiting platform 701 close to the material receiving assembly 8 .
[0048] Since different metal parts have different sizes, before welding, the size of the limiting space is adjusted according to the welding position and the size of the parts. The metal parts are stuck between adjacent guide frames 707 to limit the position of the metal parts. During welding, the push frame 702 is used to push and move toward the heating area. After preheating, welding is performed.
[0049] like Figure 8 As shown, the pushing frame 702 spans across the multiple groups of guide frames 707, and its two ends are slidably connected to the two sides of the limiting platform 701 respectively; the pushing frame 702 is provided with pushing members 711 corresponding to the limiting spaces one by one.
[0050] It should be further explained that slide rails 709 are arranged on both sides of the limiting platform 701 ; and an electric pulley structure 712 cooperating with the slide rails 709 is arranged on the pushing frame 702 .
[0051] It should be further explained that a row of electric telescopic rods 710 are arranged on the pushing frame 702 ; and the pushing members 711 are arranged on the telescopic ends of the electric telescopic rods 710 .
[0052] It should be further explained that the pushing member 711 is in a strip shape and is disposed between adjacent guide frames 707 .
[0053] The electric pulley structure 712 drives the push frame 702 to move as a whole, and the push member 711 extends into the limited space of the metal parts to push the metal parts to move. The metal parts move synchronously toward the welding end.
[0054] like Figure 3-Figure 5 As shown, the material receiving assembly 8 includes a material receiving box with an opening at the top, and a material receiving net is arranged in the box; the space below the material receiving net is connected to the vacuum pump 9; during welding, the material receiving box and the through hole 714 can absorb the residue and smoke. After welding, the parts are pushed to fall into the material receiving net and are absorbed by the negative pressure to achieve the purpose of cooling, shaping, cleaning and dust removal.
[0055] like Figure 4 and Fig. 9 As shown, a metal frame 401 is arranged on the top of the sealing cover 4 ; an electromagnet frame 1 matching the metal frame 401 is arranged on the lifting seat 5 ; and an electromagnet frame 2 101 matching the metal frame 401 is arranged on the table top 1 .
[0056] It should be further explained that the second electromagnet frame 101 frames the limiting component 7 and the material receiving component 8.
[0057] Before welding, metal parts need to be placed and their positions adjusted. At this time, the metal frame 401 cooperates with the first electromagnet frame, and the sealing cover 4 is put away to ensure the field of vision. During welding, the metal frame 401 cooperates with the second electromagnet frame 101, and the sealing cover 4 is put down to ensure sealing.
[0058] like Fig. 9 As shown, the lifting drive member 3 is configured as a lifting cylinder; the bottom of the lifting cylinder is connected to the table 1, and the top is connected to the lifting seat 5. The position adjustment component 6 includes a sliding frame 602 slidably arranged at the bottom of the lifting seat 5; a rotating mounting plate 601 is arranged on the sliding frame 602; a mounting seat 603 is arranged at the bottom of the mounting plate 601; and a mounting frame 604 is slidably arranged on the mounting seat 603.
[0059] It should be further explained that the mounting frame 604 is an adjustment end; the welder 10 is arranged in the middle of the mounting frame 604 .
[0060] It needs to be further explained that motor 2 is arranged at the bottom of the lifting seat 5; screw 2 is driven to rotate by motor 2; the sliding frame 602 realizes horizontal movement by threaded connection with screw 2; motor 3 is arranged on the sliding frame 602 to drive the mounting plate 601 to rotate; motor 4 and screw 3 driven to rotate by motor 4 are arranged on the mounting seat 603; and the mounting frame 604 realizes horizontal movement by threaded connection with screw 3.
[0061] The welder 10 can adjust the position in multiple directions by horizontal movement of the sliding frame 602, rotation of the mounting plate 601 and horizontal movement of the mounting frame 604. During welding, the welder 10 moves from one end to the other along the gap between the two sets of stopper assemblies 7 to weld multiple sets of metal parts in sequence.
[0062] It should be further explained that monitoring probes 11 are provided on both sides of the mounting frame 604; the monitoring probes 11 record the entire welding process and monitor the route and direction of the welding.
[0063] Embodiment 2: Based on the welding workbench for metal parts processing in Embodiment 1, this embodiment proposes a metal parts welding method, and the specific steps are as follows:
[0064] S1. Classify the metal parts and place the two parts to be welded on the left and right limit platforms 701; install the corresponding number of guide frames 707 according to the welding position and size of the parts, and adjust the size of the limit space so that the metal parts are stuck between adjacent guide frames 707;
[0065] S2, the push frame 702 moves, and the push member 711 extends into the limited space with the metal parts, pushing the metal parts to move toward the heating area for preheating;
[0066] S3, the metal frame 401 cooperates with the second electromagnet frame 101, and the sealing cover 4 is lowered;
[0067] S4, the slag collecting box 703 rises to expose the through hole 714, and the size of the connecting space between the adjusting hole 713 and the through hole 714 can be adjusted by further sliding the adjusting sleeve 706;
[0068] S5. Adjust the welding heights of the metal parts on both sides relative to each other; the pusher 711 further pushes the metal parts on both sides to fit together;
[0069] S6. Through the horizontal movement of the sliding frame 602, the rotation of the mounting plate 601 and the horizontal movement of the mounting frame 604, the welder 10 is moved from one end of the metal parts to be welded to the other end while welding until the welding of all the metal parts is completed; during the welding process, the material receiving box and the through hole 714 can absorb the residue and smoke; the staff monitors the route and direction of the welding through the monitoring probe 11;
[0070] S7, after the welding is completed, the parts are pushed by the pusher 711 to fall onto the material receiving net, and are adsorbed by negative pressure to cool down, shape, clean and remove dust;
[0071] S8, the sealing cover 4 is put away, and the staff takes out the welded finished product.
[0072] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A welding workbench for metal parts processing, characterized in that: include: A table top (1), wherein a lifting drive member (3) is disposed at the upper end of the table top (1) and a support box (2) is disposed at the lower end; A material receiving assembly (8), the material receiving assembly (8) being arranged in the middle of the table top (1) and having its bottom end extending into the support box (2); A limiting component (7), the limiting component (7) is arranged in a mirror image on both sides of the material receiving component (8), and limits the positions of two metal parts to be welded respectively; A lifting seat (5), the lifting seat (5) is located above the table (1), and is driven to rise and fall by a lifting drive member (3), and a sealing cover (4) is provided at the bottom of the lifting seat (5); A position adjustment component (6), the position adjustment component (6) is located at the center of the lifting seat (5) and is surrounded by the sealing cover (4); and a welding device (10), wherein the welding device (10) is arranged on the adjustment end of the position adjustment component (6) and changes the welding position through rotation, movement and lifting adjustment; The limiting assembly (7) comprises a slag collecting box (703) with a slag collecting opening that is lifted and lowered on the supporting box (2), a limiting platform (701) located on the top of the slag collecting box (703), and a pushing frame (702) slidably arranged on the limiting platform (701); By lifting and lowering the slag collecting box (703), on the one hand, the welding ends of the metal parts to be welded are adjusted to be aligned, and on the other hand, the slag collecting opening is exposed to collect the residue; by translating the pushing frame (702), on the one hand, the welding ends of the metal parts to be welded are pushed to fit together, and on the other hand, the welded metal parts are pushed to fall into the material receiving assembly (8).
2. The welding workbench for metal parts processing according to claim 1, characterized in that: The slag collecting box (703) penetrates the table top (1), and the bottom extends into the support box (2), and a lifting frame (704) is provided; the lifting frame (704) cooperates with the driving structure to drive the slag collecting box (703) to move up and down; The slag collecting opening is arranged along the top of the side wall of the slag collecting box (703).
3. The welding workbench for metal parts processing according to claim 2, characterized in that: The slag collecting opening is configured as a through hole (714) penetrating the slag collecting box (703); An adjustment sleeve (706) is provided in the slag collecting box (703) and can slide along the inner wall of the box; the adjustment sleeve (706) is provided with adjustment holes (713) corresponding one to one with the through holes (714); the adjustment sleeve (706) slides so that the adjustment holes (713) are connected or interlaced with the through holes (714).
4. The welding workbench for metal parts processing according to claim 3, characterized in that: A vacuum pump (9) is arranged in the support box (2); A vacuum port (715) with a filter screen is provided at the bottom of the slag collecting box (703); the vacuum port (715) is connected to a vacuum pump (9) so that negative pressure is formed in the slag collecting box (703).
5. The welding workbench for metal parts processing according to claim 1, characterized in that: A plurality of groups of detachable guide frames (707) are arranged on the limiting platform (701); limiting spaces matching the size of metal parts are left between adjacent guide frames (707) for the metal parts to be engaged and placed.
6. The welding workbench for metal parts processing according to claim 5, characterized in that: The pushing frame (702) spans across the multiple groups of guide frames (707), and its two ends are respectively slidably connected to the two sides of the limiting platform (701); and the pushing frame (702) is provided with pushing members (711) corresponding to the limiting spaces one by one.
7. The welding workbench for metal parts processing according to claim 4, characterized in that: The material receiving assembly (8) comprises a material receiving box with an opening at the top, and a material receiving net is arranged inside the box; the space below the material receiving net is connected to the vacuum pump (9).
8. The welding workbench for metal parts processing according to claim 1, characterized in that: A metal frame (401) is arranged on the top of the sealing cover (4); an electromagnet frame 1 matching the metal frame (401) is arranged on the lifting seat (5); and an electromagnet frame 2 (101) matching the metal frame (401) is arranged on the table top (1); The second electromagnet frame (101) frames the limit assembly (7) and the material receiving assembly (8).
9. The welding workbench for metal parts processing according to claim 1, characterized in that: The position adjustment component (6) comprises a sliding frame (602) slidably arranged at the bottom of the lifting seat (5); a rotating mounting plate (601) is arranged on the sliding frame (602); a mounting seat (603) is arranged at the bottom of the mounting plate (601); and a mounting frame (604) is slidably arranged on the mounting seat (603).
10. The welding workbench for metal parts processing according to claim 9, characterized in that: Monitoring probes (11) are arranged on both sides of the mounting frame (604).
Citation Information
Patent Citations
Metal product welding platform
CN221833618U
Mechanical equipment maintenance platform with angle convenient to adjust
CN116512203A
Laser cutting device for metal part machining
CN118081133A