A quick-change type unqualified product rework device for an automobile door sill spot welding automated production line

Abstract

The utility model discloses a quick change type unqualified product reconditioning device for automobile door threshold spot welding automation production line, including frame main part mechanism, sliding table mechanism, fixture mechanism and protection mechanism, frame main part mechanism lower extreme fixedly connected ground, the upper slide connection sliding table mechanism through the guide rail mounting seat among frame main part mechanism, sliding table mechanism one side fixedly connected protection mechanism, the upper of sliding table mechanism is equipped with fixture mechanism, sliding table mechanism and fixture mechanism are accurately positioned through quick change positioning pin among sliding table mechanism and positioning sleeve among fixture mechanism, and use fastener to fasten fixture mechanism and sliding table mechanism, make the automation production line realize quick change -over, shorten production cycle, improve the flexibility of production line, and protection mechanism plays the role of safety protection and beautiful, manually pull out sliding table mechanism, take away unqualified product reconditioning after putting back in the outside of production line, complete product reconditioning quickly and conveniently, reduced the production line cost increase of later period because of product change.

Description

Technical Field

[0001] This utility model relates to the field of automobile production technology, and in particular to a quick-change non-conforming product rework device for an automated production line for automobile door sill spot welding. Background Technology

[0002] Currently, the domestic and international automotive industries are developing rapidly and competition is fierce. Whether it is traditional fuel vehicles or new energy vehicles, their iteration speed is accelerating, resulting in a wide variety of automotive door sills. When defective products appear on the automated production line for automotive door sill spot welding, they need to be repaired offline before being put back into the automated production line. The automated production line for door sill spot welding can be used to meet the needs of various types of automotive door sills, while shortening the design and production cycle. This requires the automated production line for door sill spot welding to have a device that can quickly switch between multiple products for defective products.

[0003] Chinese patent CN215746014U discloses a device for rapid handling of car door sills, which solves the problems of low efficiency and high labor intensity of manual handling; however, it fails to solve the problem of rapid changeover of defective products in automated production lines for car door sill spot welding.

[0004] In summary, developing a quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding, enabling rapid product changeover, precise positioning, reduced production costs, shortened production cycles, and enhanced safety, while also minimizing the overall floor space required by the production line, is a pressing issue for those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of conveying defective products for repair in the existing automated production line for automotive door sill spot welding, improve the flexibility of the production line, enable the automated production line to achieve rapid product changeover, precise positioning, reduce production costs, shorten the production cycle, ensure safety, and complete product repair quickly and conveniently, thereby reducing the increase in production line costs caused by product changes in the later stages.

[0006] The objective of this utility model is achieved through the following technical solution: A quick-change rework device for defective products in an automated production line for automotive door sill spot welding includes a frame main body, a slide mechanism, a clamping mechanism, and a protective mechanism. The bottom of the frame main body is fixedly connected to the ground, and the top of the frame main body is slidably connected to the slide mechanism via a guide rail mounting seat. The protective mechanism is fixedly connected to one side of the slide mechanism, and a clamping mechanism is provided above the slide mechanism. The slide mechanism and the clamping mechanism are precisely positioned by quick-change positioning pins in the slide mechanism and positioning sleeves in the clamping mechanism, and fasteners are used to secure the clamping mechanism and the slide mechanism, enabling quick replacement of the clamping mechanism and thus achieving rapid product changeover in the automated automotive door sill spot welding production line. Under the action of external force, the slide mechanism slides out of the automated production line with the clamping mechanism, which can complete the removal of defective products and the placement of reworkable qualified products.

[0007] The aforementioned quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding includes a fixture mechanism comprising a fixture frame, positioning sleeves, positioning support components, support columns, a second sensor mounting plate, and a diffuse reflection sensor. The fixture frame is rectangular, with positioning support components at each of its four corners. Two positioning support components on the same long side of the fixture frame support one workpiece. Multiple support columns and a second sensor mounting plate are spaced apart on the long side where the two positioning support components are located. A diffuse reflection sensor is mounted on the second sensor mounting plate. The fixture frame also has positioning sleeves and threaded holes, with more than two positioning sleeves and threaded holes.

[0008] The aforementioned quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding includes a sliding table mechanism comprising a sliding frame, slide rails, a frame mounting base, a guide sleeve fixing base, a second guide sleeve, a second guide sleeve pressure plate, a limit block, a limit block pad, a sensing block, a quick-change positioning pin, a quick-change positioning pin seat, and a locking block. The sliding frame is rectangular, with a slide rail on each of the two long sides and a frame mounting base on the inner side. A protective mechanism is fixedly connected to the outer side of one of the two short sides, and a sensing block is located on the downward-facing surface of the other side. The sensing block has a series of components on both sides. The device includes a guide sleeve fixing seat and a limiting block. The second guide sleeve is embedded in the guide sleeve fixing seat and fixed by the second guide sleeve pressure plate. The limiting block has a limiting block pad on its surface facing the center of the sliding frame. Both long sidewalls of the sliding frame are provided with quick-change positioning pin seats and locking blocks. Both quick-change positioning pin seats and locking blocks are provided with locking holes. The quick-change positioning pin seats are also provided with quick-change positioning pins. The quick-change positioning pins are precisely positioned in a one-to-one correspondence with the positioning sleeves of the clamping mechanism. The locking holes are one-to-one correspondences with the threaded holes on the clamping mechanism. Fasteners fix the clamping mechanism to the slide mechanism through the locking holes and threaded holes.

[0009] The aforementioned quick-change non-conforming product rework device for an automated automotive door sill spot welding production line includes a frame main structure comprising a bracket, a grounding solenoid valve, a pneumatic mounting plate, a side positioning block, a pin mounting seat, a cylinder, an inductive proximity sensor, a first positioning pin, a first guide sleeve, a first guide sleeve pressure plate, a cable chain, a cable chain mounting plate, a guide rail mounting seat, a first sensor mounting plate, a buffer mounting seat, and a hydraulic buffer. The bracket is a rectangular frame, with its bottom fixed to the ground via grounding feet. Multiple guide rail mounting seats are spaced apart on two parallel long side frames at the top. The cable chain mounting plate rests on the two short side frames of the bracket, and the cable chain... The cable chain mounting plate is installed above the bracket. The pneumatic control mounting plate is vertically installed on one side of the short frame of the bracket. The solenoid valve is installed on the pneumatic control mounting plate and is used to control the return stroke of the cylinder. A first sensor mounting plate is provided on the short frame of the bracket near the pneumatic control mounting plate. An inductive proximity sensor is provided on the first sensor mounting plate. A pin mounting seat and a side positioning block are respectively provided on both sides of the first sensor mounting plate. The first guide sleeve is embedded in the pin mounting seat and fixed by the first guide sleeve pressure plate. The first positioning pin is set in the first guide sleeve and connects to the piston rod of the cylinder. Two buffer mounting seats are spaced apart on the other short frame of the bracket. The buffer mounting seats are equipped with hydraulic buffers.

[0010] The above-mentioned quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding includes a positioning support assembly comprising a support plate, a second positioning pin seat, a second positioning pin, and a support column. The support plate is fixedly connected to a fixture frame, and the support plate is provided with a second positioning pin seat and a support column. The second positioning pin is fixed on the second positioning pin seat.

[0011] The aforementioned quick-change non-conforming product rework device for an automated automotive door sill spot welding production line includes a protective mechanism comprising a protective baffle positioning pin and a handle positioning pin. The handle positioning pin is mounted on the protective baffle positioning pin, and the material and color of the protective baffle positioning pin match the protective facilities of the automated automotive door sill spot welding production line. Beneficial effects

[0012] This utility model provides a quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding. It uses positioning pins and sleeves to precisely position the slide mechanism and clamping mechanism, enabling rapid replacement of the clamping mechanism. This allows for quick product changeover on the automated production line, shortening the production cycle and improving its flexibility. A protective mechanism matching the production line's protection is installed in front of the slide assembly, providing both safety and aesthetics. The slide mechanism is manually pulled out, and non-conforming products are removed from the production line for rework and then returned, quickly and conveniently completing product rework and reducing increased production line costs due to subsequent product changes. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the figures.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the clamping mechanism in this utility model; Figure 3 This is a structural schematic diagram of the sliding table mechanism and the protective mechanism in this utility model; Figure 4 yes Figure 3 A structural diagram from another perspective; Figure 5 This is a structural schematic diagram of the main frame structure in this utility model; Figure 6 This is a schematic diagram of the positioning support component in this utility model.

[0015] The labels in the diagram represent: 1. Main frame mechanism; 2. Slide mechanism; 3. Fixture mechanism; 4. Protective mechanism; 5. Workpiece; 11. Support; 12. Foot; 13. Solenoid valve; 14. Pneumatic control mounting plate; 15. Side positioning block; 16. Pin mounting seat; 17. Cylinder; 18. Inductive proximity sensor; 19. First positioning pin; 110. First guide sleeve; 111. First guide sleeve pressure plate; 112. Cable chain; 113. Cable chain mounting plate; 114. Guide rail mounting seat. 115. First sensor mounting plate; 116. Buffer mounting seat; 117. Hydraulic buffer; 21. Sliding frame; 22. Slide rail; 23. Frame mounting seat; 24. Guide sleeve fixing seat; 25. Second guide sleeve; 26. Second guide sleeve pressure plate; 27. Limiting block; 28. Limiting block pad; 29. ​​Sensing block; 210. Quick-change positioning pin; 211. Quick-change positioning pin seat; 212. Locking block; 213. Locking hole; 31. Fixture frame; 32. Positioning sleeve; 33. Positioning support assembly; 331. Support plate; 332. Second positioning pin seat; 333. Second positioning pin; 36. Threaded hole; 37. Support column; 38. Second sensor mounting plate; 39. Diffuse reflection sensor; 41. Protective baffle; 42. Handle. Detailed Implementation

[0016] See Figure 1This utility model includes a frame main body 1, a sliding table mechanism 2, a clamping mechanism 3, and a protective mechanism 4. The bottom of the frame main body 1 is fixedly connected to the ground, and the top of the frame main body 1 is slidably connected to the sliding table mechanism 2 through a guide rail mounting seat 114 in the frame main body 1. The protective mechanism 4 is fixedly connected to one side of the sliding table mechanism 2. The clamping mechanism 3 is provided above the sliding table mechanism 2. The sliding table mechanism 2 and the clamping mechanism 3 are precisely positioned by a quick-change positioning pin 210 in the sliding table mechanism 2 and a positioning sleeve 32 in the clamping mechanism 3. The clamping mechanism 3 and the sliding table mechanism 2 are fastened with fasteners to achieve quick replacement of the clamping mechanism 3, thereby realizing rapid production changeover in the automated production line for automotive door sill spot welding. Under the action of external force, the sliding table mechanism 2 slides out of the automated production line with the clamping mechanism 3, which can complete the removal of defective products and the placement of qualified products for rework. When the production line is operating normally, this device is in the working position. The cylinder on the main frame mechanism drives the first positioning pin to perform positioning, ensuring the accuracy of the fixture mechanism's position. Inside the production line, the robot can normally place defective car door sills. When a person requests to remove a defective product via an external button, the cylinder drives the first positioning pin to retract. The person can then pull out the slide assembly via the handle to remove the defective product outside the production line. After the defective product is reworked offline, it is manually placed into the fixture mechanism, and the slide assembly is pushed in for confirmation. The cylinder drives the first positioning pin to extend for positioning. At this point, the robot in the production line can normally grasp the reworked product for the next process, and its rework function has been realized. The slide mechanism is equipped with positioning pins. When the production line switches products, the fixture mechanism can be switched to complete a quick changeover, saving time and labor, reducing production costs, and improving the flexibility of the production line.

[0017] See Figure 2 The clamping mechanism 3 includes a clamping frame 31, a positioning sleeve 32, a positioning support assembly 33, a support column 37, a second sensor mounting plate 38, and a diffuse reflection sensor 39. The clamping frame 31 is rectangular. A positioning support assembly 33 is provided at each of the four corners of the clamping frame 31. Two positioning support assemblies 33 on the same long side of the clamping frame 31 support a workpiece 5. Multiple support columns 37 and a second sensor mounting plate 38 are spaced apart on the long side where the two positioning support assemblies 33 are located. A diffuse reflection sensor 39 is provided on the second sensor mounting plate 38. The clamping frame 31 also has a positioning sleeve 32 and a threaded hole 36 on its side. The number of positioning sleeves 32 and threaded holes 36 is greater than two.

[0018] See Figure 3 , Figure 4The sliding mechanism 2 includes a sliding frame 21, a slide rail 22, a frame mounting base 23, a guide sleeve fixing base 24, a second guide sleeve 25, a second guide sleeve pressure plate 26, a limiting block 27, a limiting block pad 28, a sensing block 29, a quick-change positioning pin 210, a quick-change positioning pin seat 211, and a locking block 212. The sliding frame 21 is rectangular. Each of the two long sides of the sliding frame 21 has a slide rail 22 on its outer side and a frame mounting base 23 on its inner side. A protective mechanism 4 is fixedly connected to the outer side of one of the two short sides. A sensing block 29 is provided on the downward-facing surface of the other side. A guide sleeve fixing base 24 and a limiting block 27 are sequentially provided on each side of the sensing block 29. After the guide sleeve 25 is embedded in the guide sleeve fixing seat 24, it is fixed by the second guide sleeve pressure plate 26. The limiting block 27 is provided with a limiting block pad 28 on the surface facing the center of the sliding frame 21. Both long sidewalls of the sliding frame 21 are provided with quick-change positioning pin seats 211 and locking blocks 212. Both quick-change positioning pin seats 211 and locking blocks 212 are provided with locking holes 213. The quick-change positioning pin seats 211 are also provided with quick-change positioning pins 210. The quick-change positioning pins 210 are precisely positioned in one-to-one correspondence with the positioning sleeves 32 of the clamping mechanism 3. The locking holes 213 correspond one-to-one with the threaded holes 36 on the clamping mechanism 3. The fasteners fix the clamping mechanism 3 to the slide mechanism 2 through the locking holes 213 and the threaded holes 36.

[0019] See Figure 5The main frame structure 1 includes a bracket 11, foot 12, solenoid valve 13, pneumatic mounting plate 14, side positioning block 15, pin mounting seat 16, cylinder 17, inductive proximity sensor 18, first positioning pin 19, first guide sleeve 110, first guide sleeve pressure plate 111, cable chain 112, cable chain mounting plate 113, guide rail mounting seat 114, first sensor mounting plate 115, buffer mounting seat 116, and hydraulic buffer 117. The bracket 11 is a rectangular frame. The bottom of the bracket 11 is fixedly connected to the ground via foot 12. Multiple guide rail mounting seats 114 are spaced apart on two parallel long side frames at the top. The cable chain mounting plate 113 is mounted on the two short side frames of the bracket 11. The cable chain 112 is mounted above the bracket 11 via the cable chain mounting plate 113. The pneumatic mounting plate 14 is vertically mounted on one side of the short side frame of the bracket 11. The solenoid valve 13 is located on the pneumatic mounting plate 14 and is used to control the return stroke of the cylinder 17. A first sensor mounting plate 115 is provided on the short frame of the bracket 11 near the pneumatic mounting plate 14. An inductive proximity sensor 18 is provided on the first sensor mounting plate 115. Pin mounting seats 16 and side positioning blocks 15 are respectively provided on both sides of the first sensor mounting plate 115. The first guide sleeve 110 is embedded in the pin mounting seat 16 and fixed by the first guide sleeve pressure plate 111. The first positioning pin 19 is located inside the first guide sleeve 110 and connects to the piston rod of the cylinder 17. Two buffer mounting seats 116 are spaced apart on the short frame of another bracket 11. A hydraulic buffer 117 is provided on each buffer mounting seat 116. The cable chain 112 assists in the sliding of the slide mechanism 2.

[0020] See Figure 6 The positioning support component 33 includes a support plate 331, a second positioning pin seat 332, a second positioning pin 333, and a support column 37. The support plate 331 is fixedly connected to the clamp frame 31. The support plate 331 is provided with a second positioning pin seat 332 and a support column 37. The second positioning pin 333 is fixed on the second positioning pin seat 332.

[0021] See Figure 3 , Figure 4 The protective mechanism 4 includes a protective baffle 41 and a handle 42. The handle 42 is mounted on the protective baffle 41. The material and color of the protective baffle 41 match the protective facilities of the automated production line for spot welding of automotive door sills.

Claims

1. A quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding, characterized in that, The system includes a frame main body (1), a slide table mechanism (2), a clamping mechanism (3), and a protective mechanism (4). The bottom of the frame main body mechanism (1) is fixedly connected to the ground, and the top is slidably connected to the slide table mechanism (2) through the guide rail mounting seat (114) in the frame main body mechanism (1). The protective mechanism (4) is fixedly connected to one side of the slide table mechanism (2). The clamping mechanism (3) is provided above the slide table mechanism (2). The slide table mechanism (2) and the clamping mechanism (3) are precisely positioned by the quick-change positioning pin (210) in the slide table mechanism (2) and the positioning sleeve (32) in the clamping mechanism (3). The clamping mechanism (3) and the slide table mechanism (2) are fastened with fasteners to realize the quick change of the clamping mechanism (3), thereby realizing the quick change of production in the automated production line for automotive door sill spot welding. Under the action of external force, the slide table mechanism (2) slides out of the automated production line with the clamping mechanism (3), which can complete the removal of defective products and the placement of qualified products for rework.

2. The quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding according to claim 1, characterized in that, The fixture mechanism (3) includes a fixture frame (31), a positioning sleeve (32), a positioning support component (33), a support column (37), a second sensor mounting plate (38), and a diffuse reflection sensor (39). The fixture frame (31) is a rectangular frame. The four corners of the fixture frame (31) are provided with positioning support components (33). Two positioning support components (33) on the same long side of the fixture frame (31) support a workpiece (5). Multiple support columns (37) and a second sensor mounting plate (38) are spaced apart on the long side where the two positioning support components (33) are located. The second sensor mounting plate (38) is provided with a diffuse reflection sensor (39). The side of the fixture frame (31) is also provided with a positioning sleeve (32) and a threaded hole (36). The number of positioning sleeves (32) and threaded holes (36) is greater than two.

3. The quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding according to claim 1, characterized in that, The sliding mechanism (2) includes a sliding frame (21), a slide rail (22), a frame mounting base (23), a guide sleeve fixing base (24), a second guide sleeve (25), a second guide sleeve pressure plate (26), a limiting block (27), a limiting block pad (28), a sensing block (29), a quick-change positioning pin (210), a quick-change positioning pin seat (211), and a locking block (212). The sliding frame (21) is rectangular. Each of the two long sides of the sliding frame (21) has a slide rail (22) on its outer side and a frame mounting base (23) on its inner side. A protective mechanism (4) is fixedly connected to the outer side of one of the two short sides. A sensing block (29) is provided on the downward-facing surface of the other side. Each side of the sensing block (29) has a guide sleeve fixing base (24) and a limiting block (27) in sequence. The second guide sleeve (25) 25) After being embedded in the guide sleeve fixing seat (24), it is fixed by the second guide sleeve pressure plate (26). The limiting block (27) is provided with a limiting block pad (28) on the surface facing the center of the sliding frame (21). The two long sidewalls of the sliding frame (21) are provided with quick-change positioning pin seats (211) and locking blocks (212). The quick-change positioning pin seats (211) and locking blocks (212) are provided with locking holes (213). The quick-change positioning pin seats (211) are also provided with quick-change positioning pins (210). The quick-change positioning pins (210) are precisely positioned in correspondence with the positioning sleeves (32) in the clamping mechanism (3). The locking holes (213) correspond one-to-one with the threaded holes (36) on the clamping mechanism (3). The fasteners fix the clamping mechanism (3) to the slide mechanism (2) through the locking holes (213) and the threaded holes (36).

4. A quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding as described in claim 1, characterized in that, The main frame structure (1) includes a bracket (11), a foot (12), a solenoid valve (13), a pneumatic control mounting plate (14), a side positioning block (15), a pin mounting seat (16), a cylinder (17), an inductive proximity sensor (18), a first positioning pin (19), a first guide sleeve (110), a first guide sleeve pressure plate (111), a cable chain (112), a cable chain mounting plate (113), and a guide rail mounting seat (114). The system includes a first sensor mounting plate (115), a buffer mounting base (116), and a hydraulic buffer (117). The bracket (11) is a rectangular frame. The bottom of the bracket (11) is fixed to the ground via foot (12). Multiple guide rail mounting bases (114) are spaced apart on the two parallel long side frames at the top. The drag chain mounting plate (113) is mounted on the two short side frames of the bracket (11). The drag chain (112) is mounted above the bracket (11) via the drag chain mounting plate (113). The pneumatic control mounting plate (14) is vertically mounted on one side of the short side frame of the bracket (11). The solenoid valve (13) is mounted on the pneumatic control mounting plate (14) and is used to control the return stroke of the cylinder (17). A first sensor mounting plate (115) is provided on the short frame of the bracket (11) near the pneumatic mounting plate (14). An inductive proximity sensor (18) is provided on the first sensor mounting plate (115). Pin mounting seats (16) and side positioning blocks (15) are provided on both sides of the first sensor mounting plate (115) respectively. The first guide sleeve (110) is embedded in the pin mounting seat (16) and fixed by the first guide sleeve pressure plate (111). The first positioning pin (19) is set in the first guide sleeve (110) and connected to the piston rod of the cylinder (17). Two buffer mounting seats (116) are provided at intervals on the short frame of the other bracket (11). A hydraulic buffer (117) is provided on the buffer mounting seat (116).

5. A quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding as described in claim 1, characterized in that, The positioning support assembly (33) includes a support plate (331), a second positioning pin seat (332), a second positioning pin (333), and a support column (37). The support plate (331) is fixedly connected to the clamp frame (31). The support plate (331) is provided with a second positioning pin seat (332) and a support column (37). The second positioning pin (333) is fixed on the second positioning pin seat (332).

6. A quick-change non-conforming product rework device for an automated production line for automotive door sill spot welding as described in claim 1, characterized in that, The protective mechanism (4) includes a protective baffle (41) and a handle (42), the handle (42) being mounted on the protective baffle (41), the material and color of which match the protective facilities of the automated production line for spot welding of automotive door sills.

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