Limiting device for welding machining of sheet metal parts

Abstract

The invention discloses a limiting device for sheet metal part welding machining. The limiting device comprises a welding mechanical arm, a welding platform, a mounting base, a driving part, a first limiting part and a second limiting part. The limiting arm is pressed, the limiting arm is kept to deform due to stress, the pressing part is pressed to enter the notch, and the pressing arm is kept to rotate along with the pressing part to be in contact with the sheet metal part. The limiting device for sheet metal part welding machining is compact in structure and ingenious in design. And the fixed second limiting piece and the movable first limiting piece are adopted to achieve limiting treatment on the sheet metal part. And sheet metal parts with different lengths can be positioned, and sheet metal parts with different thicknesses can be positioned. And more air cylinders are not needed to assist in limiting, so that the operation of wire arrangement and pipe arrangement is avoided, the welding platform cannot be disordered, the sheet metal part can be quickly and stably limited on the welding platform through the first limiting piece and the second limiting piece, and the clamping efficiency is further improved.

Description

Technical Field

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

[0002] When processing metal products, they need to be bent, and the bent sheet metal parts need to be welded. Before welding, the sheet metal parts need to be positioned so that they will not be offset during the welding process, affecting the welding accuracy. Currently, welding is mainly completed by welding robotic arms, so the sheet metal parts need to be limited first.

[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 triangle. The clamping system uses a large number of telescopic drive devices, and it is extremely difficult to route the wire tube in actual layout and control, and it will also be affected by the wire tube during operation. At the same time, when placing the workpiece to be welded, the wire tube needs to be arranged apart, which is not conducive to the rapid placement of the workpiece. Summary of the invention

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

[0005] The technical solution of the present invention is achieved in this way:

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

[0007] Welding robot arm,

[0008] A bracket is arranged 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 arranged on the mounting member,

[0009] The other end of the welding platform is provided with a notch, the second limiting member is arranged 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, wherein the first transverse plate is arranged on the upper end of the second transverse plate, a mounting groove is arranged on the first transverse plate, and a limiting groove is arranged on the second transverse plate.

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

[0012] The second limiting member is provided with a pressure portion, a fixing plate, a pressure arm and a limiting arm. The pressure portion connects the fixing plate and the limiting arm. The pressure arm is arranged on the fixing plate. The sheet metal part is placed on the fixing 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 at one end of the notch is located in the pressing area.

[0015] In the present invention, 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 with the inclined section, and the inclined section is subjected to force acting 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 incline.

[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 a fourth arc section, the elastic section extends into the avoidance opening, the elastic section maintains an inclined setting when not subjected to 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, a blocking section is provided in the second punching hole, and 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 plate, an elastic area is formed in the middle of the arc 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, a guide block is further provided on the sliding plate, a guide slope is provided on the guide block, a notch is provided on the guide slope, and the pressure end is arranged at the lower end of the sliding plate.

[0023] The limiting device for sheet metal welding processing implemented in the present invention has the following beneficial effects: the limiting device for sheet metal welding processing has a compact structure and an ingenious design. The limiting processing of the sheet metal is realized by using a fixed second limiting member and a movable first limiting member. Not only can the positioning processing be performed on sheet metal parts of different lengths, but also sheet metal parts of different thicknesses can be positioned. And it does not require a large number of cylinders to assist in limiting, avoiding the operation of wiring and pipe laying, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a limit device for sheet metal welding processing of the present invention;

[0025] Figure 2 for Figure 1 A schematic structural diagram of a welding platform, a driving member, a mounting member, a first limiting member, and a second limiting member;

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

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

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

[0029] Figure 6 It is a partial perspective view of the second limiter and the welding platform structure in the present invention in the installation state;

[0030] Figure 7 It is a 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] Fig. 9 for Figure 7 Schematic diagram of the first limit 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, limit 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, limit 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 in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] like Figures 1 to 9 As shown, the limiting device for sheet metal welding processing of the present invention comprises a welding robot arm 1, a bracket 2, a welding platform 3, and a driving member 4, a mounting member 5, a first limiting member 6, and a second limiting member 7 arranged on the welding platform 3. The welding robot arm 1 is used to perform welding processing on the sheet metal 8 positioned on the welding platform 3. The sheet metal 8 is limited by the first limiting member 6 and the second limiting member 7, which avoids the position deviation of the sheet metal 8 to be welded, affecting the welding accuracy. At the same time, the first limiting member 6 can be easily moved, which is suitable for limiting the sheet metal 8 of different lengths.

[0036] When the sheet metal part 8 is limited and fixed, one end of the sheet metal part 8 is first placed in the middle of the second limiter 7 and on the fixing plate 9 on the second limiter 7, and then pressed by the pressure arm 10, and blocked and limited by the blocking section 11. Then, the driving part 4 drives the mounting part 5 and the first limiter 6 to move, and the pressure end 12 on the first limiter 6 acts on the other end of the sheet metal part 8 to press and limit it.

[0037] The bracket 2 is arranged at the lower end of the welding robot arm 1, and a welding platform 3 is arranged on the bracket 2. A plurality of bearing blocks 13 are arranged on the welding platform 3, and a collection chamber 14 is formed between the bearing blocks 13 and the bearing blocks 13. The collection chamber 14 is used to collect welding slag dropped by welding. Since the bearing blocks 13 have a certain height, when the welding slag falls into the collection chamber 14, it will not affect the placement of the sheet metal part 8 within a certain period of time. After the welding is used for a period of time, the welding slag in the collection chamber 14 needs to be cleared.

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

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

[0040] Example 1

[0041] The mounting member 5 is composed of a vertical plate 17, a first horizontal plate 18 and a second horizontal plate 19. The first horizontal plate 18 is arranged at the upper end of the second horizontal plate 19. The first horizontal plate 18 is provided with a mounting groove 20, and the second horizontal plate 19 is provided with a limiting groove 21. The vertical plate 17 is connected to the driving member 4. After the driving member 4 is started, it can drive the mounting member 5 to move, and the first limiting member 6 kept on the mounting member 5 also moves, and exerts pressure on the sheet metal member 8 to be welded.

[0042] Example 2

[0043] The first stopper 6 is arranged on the mounting member 5, and a pressure end 12 is arranged at the lower end of the first stopper 6. The first stopper 6 is composed of a mounting plate 22 and a sliding plate 23. The mounting plate 22 and the sliding plate 23 are connected by an arc plate 24, and an elastic area 25 is formed in the middle of the arc plate 24. The mounting plate 22 is arranged in the mounting groove 20. When the sliding plate 23 is forced to move upward, the arc plate 24 is kept deformed by force, and the elastic area 25 is reduced.

[0044] A blocking plate 26 is provided on the sliding plate 23, and a limiting block 27 is provided on the blocking plate 26, and the limiting block 27 cooperates with the limiting groove 21. When the pressure end 12 does not act on the sheet metal part 8, the sliding plate 23 is pushed downward under the elastic force of the arc plate 24, so that the limiting block 27 is placed in the limiting groove 21, and the pressure end 12 is kept from contacting the welding platform 3, forming a gap of a certain distance.

[0045] A guide block 28 is also provided on the sliding plate 23, and a guide slope 29 is provided on the guide block 28, and a notch 30 is provided on the guide slope 29. The pressure end 12 is provided at the lower end of the sliding plate 23. The notch 30 allows the operator to place his hand in the notch 30 and push the guide block 28 upward when taking out the sheet metal part 8. Or when replacing the first limiting part 6, the guide block 28 is pushed upward to move the limiting block 27 out of the limiting groove 21, and then the sliding plate 23 is bent away from the second transverse plate 19, and then the mounting part 5 is pulled downward, and the mounting part 5 can be taken out.

[0046] Example 3

[0047] The second limiting member 7 is provided with a pressure portion 31, a fixing plate 9, a pressure arm 10 and a limiting arm 32. The fixing plate 9 is mounted on the welding platform 3 at one end away from the pressure portion 31. The pressure portion 31 connects the fixing plate 9 and the limiting arm 32. The pressure arm 10 is arranged on the fixing plate 9. The sheet metal part 8 is placed on the fixing plate 9 and is pressed and positioned by the pressure arm 10. The limiting arm 32 is pressed to keep the limiting arm 32 deformed by force, and the pressure portion 31 is pressed to make it enter the notch 16, so that the pressure arm 10 is kept rotating and in contact with the sheet metal part 8.

[0048] A pressing area 33 is formed between the limiting arm 32 and the pressure applying portion 31, and the inner wall of one end of the notch 16 is located at 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 applying portion 31, the transverse section 35 connects the vertical section 36 with the inclined section 34, and 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 placed on the welding platform 3 at this time. If the pressure part 31 is pressed, it will be blocked by the limiting arm 32, and the pressure part 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 push the inclined section 34 first, so that the inclined section 34 is deformed by force, and keep the lower end of the inclined section 34 over the inner wall of the notch 16, keep the lower end of the inclined section 34 close to the pressure part 31, and then press the pressure part 31 to drive the pressure part 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 is composed 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 incline.

[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 avoidance opening 45 is formed in the middle of 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 avoidance opening 45. The elastic section 47 remains inclined when no force is applied, and remains in a vertical state after being squeezed by the sheet metal 8.

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

[0055] The fixing plate 9 is provided with a second punching hole 50 , and a blocking section 11 is provided in the second punching hole 50 . The blocking section 11 is arranged in an inclined manner and extends toward the direction of the pressure arm 10 .

[0056] A limiting opening 51 is provided at one end of the sheet metal part 8. When the sheet metal part 8 to be welded is installed, the end with the limiting opening 51 is first inserted into the second limiting part 7, and the end of the sheet metal part 8 is kept in contact with the fixing plate 9 first, and then pushed in, so that the sheet metal part 8 is limited at the position between the two positioning blocks 43. The sheet metal part 8 reaches the lower end of the pressure arm 10 under the guidance of the guide section 39, and then in the process of pushing the sheet metal part 8, the blocking section 11 is pressed to deform and move into the second punching hole 50. And the sheet metal part 8 is kept in contact with the elastic section 47 first, and then pushed in with force, so that the elastic section 47 is kept deformed by force, and changes from the original inclined state to the vertical state. At the same time, the blocking section 11 reaches the limiting opening 51, resets under its own elastic force, and contacts the inner wall of the limiting opening 51, limiting the position of the sheet metal part 8, and at the same time, the third arc section 42 acts on the sheet metal part 8 to press 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 part 4 is reset first, and the pressure end 12 no longer applies pressure to the sheet metal part 8. Then the limiting arm 32 is pressed, so that the inclined section 34 enters the pressing area 33. Then the pressure part 31 is pressed to keep the fixed plate 9 deformed and enter the notch 16, and 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 section 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 will reset under its own elastic force, return to the inclined state, and reach the lower end of the sheet metal part 8. At this time, the pressure applying part 31 is no longer pressed, and reset under the elastic force of the fixing plate 9 , pushing the sheet metal part 8 upward, and at the same time, the sheet metal part 8 is pulled out in the direction of the first limit part 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 due to 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 deformed upward by force, so that the limiting block 27 moves out of the limiting groove 21, and the arc plate 24 is deformed by 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 substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A limiting device for sheet metal welding, characterized in that: include: Welding robot arm, A bracket is arranged 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 arranged on the mounting member, The other end of the welding platform is provided with a notch, the second limiting member is arranged 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, wherein the first transverse plate is arranged on the upper end of the second transverse plate, a mounting groove is arranged on the first transverse plate, and a limiting groove is arranged on the second transverse plate. The first limiting member is arranged on the mounting member, and a pressure end is arranged at the lower end of the first limiting member. The second limiting member is provided with a pressure portion, a fixing plate, a pressure arm and a limiting arm. The pressure portion connects the fixing plate and the limiting arm. The pressure arm is arranged on the fixing plate. The sheet metal part is placed on the fixing plate and is pressed and positioned by the pressure arm. 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.

2. The limiting device for sheet metal welding processing according to claim 1, characterized in that: A pressing area is formed between the limiting arm and the pressing portion, and an inner wall at one end of the notch is located in the pressing area.

3. The limiting device for sheet metal welding according to claim 2, characterized in that: The limiting arm is composed of an inclined section, a transverse section and a vertical section. The vertical section is connected to the pressure-applying portion. The transverse section connects the vertical section with the inclined section. The inclined section is subjected to force acting on the welding platform.

4. The limiting device for sheet metal welding according to claim 1, characterized in that: 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, the contact section and the guide section are all arranged at an incline.

5. The limiting device for sheet metal welding processing according to claim 4, characterized in that: 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 a fourth arc section, the elastic section extends into the avoidance opening, the elastic section maintains an inclined setting when not subjected to force, and maintains a vertical state after being squeezed by the sheet metal part.

6. The limiting device for sheet metal welding according to claim 1, characterized in that: The fixing plate is provided with a second punching hole, and a blocking section is provided in the second punching hole. The blocking section is arranged in an inclined manner and extends in the direction of the pressure arm.

7. 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.

8. 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, wherein 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, and the mounting plate is arranged in the mounting groove.

9. The limiting device for sheet metal welding according to claim 8, characterized in that: The sliding plate is provided with a blocking plate, the blocking plate is provided with a limiting block, and the limiting block cooperates with the limiting groove.

10. The limiting device for sheet metal welding according to claim 9, characterized in that: The sliding plate is also 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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