A limiting device for sheet metal part welding processing

Abstract

The present invention discloses a limiting device for sheet metal welding processing, including a welding robot arm, a welding platform, a mounting seat, a driving member, a first limiting member and a second limiting member. Press the limiting arm to keep the limiting arm deformed by force, press the pressure part to make it enter the notch, and keep the pressure arm rotating and in contact with the sheet metal. The limiting device for sheet metal welding processing has a compact structure and a clever design. A fixed second limiting member and a movable first limiting member are used to achieve the limiting processing of the sheet metal. Not only can positioning processing be performed on sheet metal parts of different lengths, but also sheet metal parts of different thicknesses can be positioned. And there is no need for a large number of cylinder auxiliary limiting, which avoids the operation of arranging wires and pipes, so that the welding platform will not be cluttered, and the sheet metal parts can be quickly and stably limited on the welding platform through the first limiting member and the second limiting member, further improving the clamping efficiency.

Description

Technical Field

[0001] The invention relates to a welding limiting technology, in particular to a limiting device for sheet metal welding. Background Art

[0002] During the processing of metal products, they need to be bent. After bending, the sheet metal parts need to be welded. Before welding, the sheet metal parts need to be positioned to prevent position shifting during the welding process, which would affect the welding accuracy. Currently, welding is mainly completed using welding robots, so the sheet metal parts need to be limited in place beforehand.

[0003] CN115302178B discloses an automatic welding clamping system, which uses a clamping platform and a first clamping assembly; the first clamping assembly includes a first telescopic drive device, a first connecting seat, a second telescopic drive device, and a first clamping mechanism, and the first clamping mechanism is hinged to the movable part of the second telescopic drive device around a third rotating shaft; the first rotating shaft, the second rotating shaft, and the third rotating shaft are parallel to each other and arranged in a triangular shape. The clamping system uses a large number of telescopic drive devices, and the wire pipes are extremely difficult to route in actual control, and will also be affected by the wire pipes during operation. At the same time, when placing the workpiece to be welded, the wire pipes need to be arranged aside, which is not conducive to the rapid placement of the workpiece. Summary of the Invention

[0004] In order to solve the above-mentioned defects in the prior art, the present invention proposes a limiting device for sheet metal welding processing.

[0005] The technical solution of the present invention is achieved as follows:

[0006] A limiting device for sheet metal welding processing, comprising:

[0007] Welding robot arm,

[0008] A bracket is provided at the lower end of the welding robot arm, the bracket is provided with a welding platform, the welding platform is provided with a first limiter and a second limiter, the first limiter and the second limiter are arranged oppositely, one end of the welding platform is provided with a support, the support is provided with a driving member, the driving member is provided with a mounting member, the first limiter is provided on the mounting member,

[0009] The other end of the welding platform is provided with a notch, the second limiting member is provided at the upper end of the notch, and the length of the second limiting member is greater than the length of the notch.

[0010] The mounting member is composed of a vertical plate, a first transverse plate and a second transverse plate. The first transverse plate is arranged on the upper end of the second transverse plate. The first transverse plate is provided with a mounting groove, and the second transverse plate is provided with a limiting groove.

[0011] The first limiting member is arranged on the mounting member, and a pressure end is provided at the lower end of the first limiting member.

[0012] The second limiting member is provided with a pressure portion, a fixed plate, a pressure arm and a limiting arm. The pressure portion connects the fixed plate and the limiting arm. The pressure arm is arranged on the fixed plate. The sheet metal part is placed on the fixed plate and is pressed and positioned by the pressure arm.

[0013] Press the limit arm to keep the limit arm deformed by force, press the pressure part to make it enter the notch, and keep the pressure arm rotating to contact the sheet metal part.

[0014] In the present invention, a pressing area is formed between the limiting arm and the pressing portion, and an inner wall of one end of the notch is located in the pressing area.

[0015] In the present invention, the limiting arm consists of an inclined section, a transverse section and a vertical section. The vertical section is connected to the pressure portion. The transverse section connects the vertical section with the inclined section. The inclined section is subjected to force on the welding platform.

[0016] In the present invention, the pressure arm consists of a deformation section, a contact section and a guide section. The deformation section is connected to the fixed plate through a first arc section, the contact section and the deformation section are connected through a second arc section, and the guide section and the contact section are connected through a third arc section. The deformation section, contact section and guide section are all arranged at an angle.

[0017] In the present invention, an avoidance opening is formed in the middle of the contact section and the deformation section, a first punching hole is provided on the fixed plate, an elastic section is provided in the first punching hole, the elastic section contacts the inner wall of the first punching hole through the fourth arc section, the elastic section extends into the avoidance opening, the elastic section maintains an inclined setting when not under force, and maintains a vertical state after being squeezed by the sheet metal.

[0018] In the present invention, a second punching hole is provided on the fixing plate, and a blocking section is provided in the second punching hole. The blocking section is arranged obliquely and extends in the direction of the pressure arm.

[0019] In the present invention, the fixing plate is provided with symmetrically arranged positioning blocks, a positioning area is formed between the positioning blocks, and the pressure arm is located on the positioning blocks.

[0020] In the present invention, the first position-limiting member is composed of a mounting plate and a sliding plate, the mounting plate and the sliding plate are connected by an arc-shaped plate, an elastic area is formed in the middle of the arc-shaped plate, and the mounting plate is arranged in the mounting groove.

[0021] In the present invention, a blocking plate is provided on the sliding plate, and a limiting block is provided on the blocking plate, and the limiting block cooperates with the limiting groove.

[0022] In the present invention, the sliding plate is further provided with a guide block, the guide block is provided with a guide slope, the guide slope is provided with a notch, and the pressure end is arranged at the lower end of the sliding plate.

[0023] The limiting device for sheet metal welding processing according to the present invention has the following beneficial effects: the limiting device has a compact structure and an ingenious design. A fixed second limiting member and a movable first limiting member are used to limit the sheet metal. Not only can sheet metals of different lengths be positioned, but also sheet metals of different thicknesses can be positioned. Furthermore, the device does not require a large number of cylinder-assisted limiting devices, thus avoiding the need for wiring and piping operations, and thus preventing the welding platform from becoming cluttered. The first and second limiting members can quickly and stably limit the sheet metal on the welding platform, further improving the clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a limiting device for sheet metal welding processing according to the present invention;

[0025] Figure 2 for Figure 1 A schematic structural diagram of the welding platform, driving member, mounting member, first limiting member and second limiting member in FIG.

[0026] Figure 3 for Figure 2 The main view;

[0027] Figure 4 for Figure 2 A schematic structural diagram of the second limiting member in FIG.

[0028] Figure 5 for Figure 4 sectional view of ;

[0029] Figure 6 A partial perspective view of the second limiting member and the welding platform structure in the present invention in the installed state;

[0030] Figure 7 Schematic diagram of the structure of the mounting member and the first limiting member in the present invention;

[0031] Figure 8 for Figure 7 The main perspective view;

[0032] Figure 9 for Figure 7 Schematic diagram of the first limiting member structure.

[0033] In the figure: welding robot arm 1, bracket 2, welding platform 3, driving member 4, mounting member 5, first limit member 6, second limit member 7, sheet metal member 8, fixing plate 9, pressure arm 10, blocking section 11, pressure end 12, bearing block 13, collection chamber 14, support 15, notch 16, vertical plate 17, first transverse plate 18, second transverse plate 19, mounting groove 20, limit groove 21, mounting plate 22, sliding plate 23, arc plate 24, elastic area 25, blocking plate 26, limit block 27 , guide block 28, guide slope 29, recess 30, pressure portion 31, limiting arm 32, pressing area 33, inclined section 34, transverse section 35, vertical section 36, deformation section 37, contact section 38, guide section 39, first arc section 40, second arc section 41, third arc section 42, positioning block 43, positioning area 44, avoidance opening 45, first stamping hole 46, elastic section 47, fourth arc section 48, protrusion 49, second stamping hole 50, limiting opening 51, contact surface 52. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] like Figures 1 to 9 As shown, the present invention's position limiting device for sheet metal welding comprises a welding robot arm 1, a bracket 2, a welding platform 3, and a drive member 4, a mounting member 5, a first position limiting member 6, and a second position limiting member 7 disposed on the welding platform 3. The welding robot arm 1 is used to weld a sheet metal part 8 positioned on the welding platform 3. The first position limiting member 6 and the second position limiting member 7 restrain the sheet metal part 8, preventing it from shifting and affecting welding accuracy. Furthermore, the first position limiting member 6 can be easily moved, making it suitable for limiting the position of sheet metal parts 8 of varying lengths.

[0036] When the sheet metal member 8 is restrained and fixed, one end of the sheet metal member 8 is first placed in the middle of the second restraining member 7 and on the fixing plate 9 on the second restraining member 7. Then, the pressure arm 10 applies pressure, and the blocking section 11 blocks and restrains the sheet metal member 8. The driver 4 then drives the mounting member 5 and the first restraining member 6 to move, and the pressure end 12 on the first restraining member 6 acts on the other end of the sheet metal member 8, thereby restraining the sheet metal member 8.

[0037] Bracket 2 is mounted at the lower end of welding robot arm 1. Bracket 2 is equipped with a welding platform 3, which is equipped with multiple supporting blocks 13. A collection chamber 14 is formed between supporting blocks 13 to collect welding slag. Because supporting blocks 13 are at a certain height, any slag that falls into collection chamber 14 will not affect the placement of sheet metal component 8 for a certain period of time. After a period of welding, the slag in collection chamber 14 can be removed.

[0038] The welding platform 3 is provided with a first stopper 6 and a second stopper 7, which are arranged opposite each other. A support 15 is provided at one end of the welding platform 3, on which a driving member 4 is provided. The driving member 4 is a cylinder, and a mounting member 5 is provided on the driving member 4. The first stopper 6 is mounted on the mounting member 5.

[0039] The other end of the welding platform 3 is provided with a notch 16, and the second limiting member 7 is arranged on the upper end of the notch 16. The length of the second limiting member 7 is greater than the length of the notch 16. The notch 16 is used to keep the second limiting member 7 bent and deformed into the notch 16 when the second limiting member 7 is subjected to force.

[0040] Example 1

[0041] Mounting member 5 consists of a vertical plate 17, a first transverse plate 18, and a second transverse plate 19. First transverse plate 18 is positioned above second transverse plate 19. Mounting slots 20 are defined in first transverse plate 18, while retaining slots 21 are defined in second transverse plate 19. Vertical plate 17 is connected to driver 4. When activated, driver 4 drives mounting member 5 to move, causing first retaining member 6, which remains on mounting member 5, to move with it, exerting pressure on sheet metal component 8 to be welded.

[0042] Example 2

[0043] The first stopper 6 is mounted on the mounting member 5. A pressure-applying end 12 is provided at its lower end. The first stopper 6 comprises a mounting plate 22 and a sliding plate 23. The mounting plate 22 and sliding plate 23 are connected by a curved plate 24, which defines an elastic region 25. The mounting plate 22 is positioned within the mounting slot 20. When the sliding plate 23 is forced upward, the curved plate 24 is deformed, shrinking the elastic region 25.

[0044] A blocking plate 26 is provided on the sliding plate 23, and a stopper 27 is provided on the blocking plate 26. The stopper 27 engages with the stopper groove 21. When the pressing end 12 is not acting on the sheet metal part 8, the elastic force of the curved plate 24 pushes the sliding plate 23 downward, so that the stopper 27 is placed in the stopper groove 21, preventing the pressing end 12 from contacting the welding platform 3, and forming a certain distance between them.

[0045] The sliding plate 23 is also provided with a guide block 28, which is equipped with a guide slope 29, which is provided with a notch 30. The pressing end 12 is located at the lower end of the sliding plate 23. When removing the sheet metal component 8, the operator can place their hand within the notch 30 and push the guide block 28 upward. Alternatively, when replacing the first stopper 6, the operator can push the guide block 28 upward, thereby moving the stopper 27 out of the stop slot 21. The sliding plate 23 can then be moved away from the second transverse plate 19, and the mounting component 5 can be pulled downward to remove the mounting component 5.

[0046] Example 3

[0047] The second limiting member 7 is equipped with a pressure portion 31, a fixed plate 9, a pressure arm 10, and a limiting arm 32. The end of the fixed plate 9, away from the pressure portion 31, is mounted on the welding platform 3. The pressure portion 31 connects the fixed plate 9 and the limiting arm 32. The pressure arm 10 is mounted on the fixed plate 9. The sheet metal component 8 is placed on the fixed plate 9 and is pressed and positioned by the pressure arm 10. Pressing the limiting arm 32 causes the limiting arm 32 to deform under force, pressing the pressure portion 31, forcing it into the notch 16, and keeping the pressure arm 10 rotating to contact the sheet metal component 8.

[0048] A pressing area 33 is formed between the limiting arm 32 and the pressure portion 31, and the inner wall of one end of the notch 16 is located in the pressing area 33. The limiting arm 32 is composed of an inclined section 34, a transverse section 35, and a vertical section 36. The vertical section 36 is connected to the pressure portion 31, and the transverse section 35 connects the vertical section 36 to the inclined section 34. The inclined section 34 is subjected to force acting on the welding platform 3.

[0049] like Figure 6 As shown, the limiting arm 32 is now placed on the welding platform 3. If the pressure portion 31 is pressed, it will be blocked by the limiting arm 32, and the pressure portion 31 cannot enter the notch 16, and the fixing plate 9 cannot be deformed. Therefore, before releasing the position restriction of the sheet metal 8, it is necessary to first push the inclined section 34 so that the inclined section 34 is deformed under the force, and keep the lower end of the inclined section 34 over the inner wall of the notch 16 and close to the pressure portion 31. Then, press the pressure portion 31 to drive the pressure portion 31 to move into the notch 16.

[0050] The length of the transverse section 35 is smaller than the distance between the side surface of the pressure-exerting portion 31 and the inner wall of the notch 16 , so that the transverse section 35 can enter the notch 16 .

[0051] The pressure arm 10 consists of a deformation section 37, a contact section 38 and a guide section 39. The deformation section 37 is connected to the fixed plate 9 through a first arc section 40, the contact section 38 and the deformation section 37 are connected through a second arc section 41, and the guide section 39 and the contact section 38 are connected through a third arc section 42. The deformation section 37, the contact section 38 and the guide section 39 are all arranged at an angle.

[0052] The fixing plate 9 is provided with symmetrically arranged positioning blocks 43 , a positioning area 44 is formed between the positioning blocks 43 , and the pressure arm 10 is located on the positioning blocks 43 .

[0053] An escape opening 45 is formed between the contact section 38 and the deformation section 37. A first punching hole 46 is provided on the fixing plate 9. An elastic section 47 is provided in the first punching hole 46. The elastic section 47 contacts the inner wall of the first punching hole 46 through the fourth arc section 48. The elastic section 47 extends into the escape opening 45. The elastic section 47 remains inclined when not under force, and remains vertical after being squeezed by the sheet metal 8.

[0054] A protrusion 49 is provided on the fixing plate 9 , and the protrusion 49 is used to support the sheet metal part 8 so that its height is consistent with that of the supporting block 13 .

[0055] A second punching hole 50 is provided on the fixing plate 9 . A blocking section 11 is provided in the second punching hole 50 . The blocking section 11 is arranged at an angle and extends toward the direction of the pressure arm 10 .

[0056] A retaining notch 51 is provided at one end of the sheet metal part 8. When installing the sheet metal part 8 to be welded, the end with the retaining notch 51 is first inserted into the second retaining member 7, maintaining contact with the fixing plate 9. The sheet metal part 8 is then pushed in, securing the sheet metal part 8 between the two positioning blocks 43. Guided by the guide segment 39, the sheet metal part 8 reaches the lower end of the pressure arm 10. As the sheet metal part 8 is pushed in, it exerts pressure on the blocking segment 11, causing it to deform and move into the second punching hole 50. Furthermore, the sheet metal part 8 is first in contact with the elastic segment 47. Continued force is applied to maintain the elastic segment 47, causing it to deform from its original tilted position to a vertical position. Simultaneously, the blocking segment 11 enters the retaining notch 51 and, under its own elastic force, returns to its original position, contacting the inner wall of the retaining notch 51, limiting the position of the sheet metal part 8. Simultaneously, the third arcuate segment 42 acts on the sheet metal part 8, exerting pressure on it.

[0057] The lower end surface of the contact section 38 is the contact surface 52. When the sheet metal part 8 needs to be removed from the welding platform 3, the driving member 4 is first reset, and the pressure end 12 no longer applies pressure to the sheet metal part 8. The limiting arm 32 is then pressed, causing the inclined section 34 to enter the pressing area 33. Pressure is then applied to the pressure portion 31 to maintain the deformation of the fixed plate 9 and enter the notch 16. At the same time, the blocking section 11 on the fixed plate 9 also moves into the notch 16, so that the blocking section 11 no longer contacts the inner wall of the limiting opening 51. At the same time, the pressure arm 10 is kept rotating around the third arc segment 42, and the contact surface 52 contacts the sheet metal part 8. The elastic section 47 also moves into the notch 16 with the fixed plate 9. When the elastic section 47 no longer contacts the sheet metal part 8, the elastic section 47 resets under its own elastic force, returns to the inclined state, and reaches the lower end of the sheet metal part 8. At this time, the pressing portion 31 can be no longer pressed, and reset under the elastic force of the fixing plate 9 to push the sheet metal component 8 upward, and at the same time, the sheet metal component 8 can be pulled out in the direction of the first limit component 6.

[0058] When the driving member 4 drives the mounting member 5 to move away from the second limiting member 7, the elastic force of the arc plate 24 at this time is greater than the friction force between the pressure end 12 and the sheet metal member 8, and the arc plate 24 will not be deformed by the force, and the sliding plate 23 will always keep in contact with the second transverse plate 19.

[0059] When the driving member 4 pushes the mounting member 5 to act on the sheet metal member 8, under the guidance of the guide slope 29, the first limiting member 6 is forced to deform upward, so that the limiting block 27 moves out of the limiting groove 21, and the arc plate 24 is deformed by the force.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A limiting device for sheet metal welding processing, characterized in that: include: Welding robot arm, A bracket is provided at the lower end of the welding robot arm, the bracket is provided with a welding platform, the welding platform is provided with a first limiter and a second limiter, the first limiter and the second limiter are arranged opposite to each other, one end of the welding platform is provided with a support, the support is provided with a driving member, and the driving member is provided with a mounting member. The other end of the welding platform is provided with a notch, the second limiting member is provided at the upper end of the notch, and the length of the second limiting member is greater than the length of the notch. The mounting member is composed of a vertical plate, a first transverse plate and a second transverse plate. The first transverse plate is arranged on the upper end of the second transverse plate. The first transverse plate is provided with a mounting groove, and the second transverse plate is provided with a limiting groove. The first limiting member is arranged on the mounting member, and a pressure end is provided at the lower end of the first limiting member. The second limiting member is provided with a pressure portion, a fixed plate, a pressure arm and a limiting arm. The pressure portion connects the fixed plate and the limiting arm. The pressure arm is arranged on the fixed plate. The sheet metal part is placed on the fixed plate and is pressed and positioned by the pressure arm. Press the limit arm to keep it deformed under force, press the pressure part to make it enter the notch, and keep the pressure arm rotating to contact the sheet metal. A pressing area is formed between the limiting arm and the pressing portion, and an inner wall of one end of the notch is located in the pressing area; The limiting arm is composed of an inclined section, a transverse section and a vertical section, the vertical section is connected to the pressure portion, the transverse section connects the vertical section and the inclined section, and the inclined section is subjected to force acting on the welding platform; The pressure arm consists of a deformation section, a contact section and a guide section. The deformation section is connected to the fixed plate via a first arc section. The contact section and the deformation section are connected via a second arc section. The guide section and the contact section are connected via a third arc section. The deformation section, the contact section and the guide section are all arranged at an angle. An avoidance opening is formed between the contact section and the deformation section. A first punching hole is provided on the fixed plate. An elastic section is provided in the first punching hole. The elastic section contacts the inner wall of the first punching hole through the fourth arc section. The elastic section extends into the avoidance opening. The elastic section remains inclined when not under force, and remains vertical after being squeezed by the sheet metal.

2. The limiting device for sheet metal welding according to claim 1, characterized in that: A second punching hole is provided on the fixing plate, and a blocking section is provided in the second punching hole. The blocking section is arranged obliquely and extends toward the direction of the pressure arm.

3. The limiting device for sheet metal welding according to claim 1, characterized in that: The fixing plate is provided with symmetrically arranged positioning blocks, a positioning area is formed between the positioning blocks, and the pressure arm is located on the positioning blocks.

4. The limiting device for sheet metal welding according to claim 1, characterized in that: The first position-limiting member is composed of a mounting plate and a sliding plate. The mounting plate and the sliding plate are connected via an arc-shaped plate. An elastic area is formed in the middle of the arc-shaped plate. The mounting plate is arranged in the mounting groove.

5. The limiting device for sheet metal welding according to claim 4, characterized in that: The sliding plate is provided with a blocking plate, and the blocking plate is provided with a limiting block, and the limiting block is matched with the limiting groove.

6. The limiting device for sheet metal welding according to claim 5, characterized in that: The sliding plate is further provided with a guide block, the guide block is provided with a guide slope, the guide slope is provided with a notch, and the pressure end is arranged at the lower end of the sliding plate.

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