Transverse moving sliding table unit for body-in-white welding production line

Abstract

The invention relates to the technical field of body-in-white welding, and discloses a transversely-moving sliding table unit for a body-in-white welding production line, which comprises a rail, a driving vehicle is arranged at the top of the rail, a fixing frame is fixedly connected to the top of the driving vehicle, and an air pressure box is fixedly connected to the inner wall of the fixing frame. Then the frame is flatly placed on the top of the sliding column, due to the fact that the bottom of the frame is mostly in an uneven state, after the frame is stable, a power source of an electric telescopic rod is switched on, and the electric telescopic rod drives a piston plate to slide upwards along the inner wall of an air pressure box; high-pressure gas forces the gas at the bottom of a sealing plate and the top of a second through hole to be input into a conveying groove through a plurality of conveying hoses, along with increase of the gas in the conveying groove, the high-pressure gas forces a plurality of extrusion blocks to slide outwards along the inner wall of a first sliding groove, and the multiple extrusion blocks extending outwards clamp and limit a chassis of the frame; and therefore, the equipment can clamp and limit different frames.

Description

Technical Field

[0001] The invention relates to the technical field of body-in-white welding equipment, and in particular to a transverse sliding table unit for a body-in-white welding production line. Background Art

[0002] The body in white refers to the welded assembly of body structural parts and covering parts, and includes front fenders, doors, engine hood, trunk lid, but does not include the unpainted body of accessories and decorative parts. When welding the body in white, due to the large workload and high precision, with the development of science and technology, welding robots are now used instead of manual welding to achieve intelligent welding. Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. The use of welding robots increases the welding speed, and the body in white only needs to be installed on a fixed slide rail for movement.

[0003] Among them, the welding fixtures used in the body-in-white welding production line mostly adopt a fixed welding method, that is, the slide unit is designed specifically according to the characteristics of the body structure. This makes it impossible for the slide unit to change the clamping method according to different body shapes, making it difficult for the equipment to meet the market demand for diversified products. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a transverse sliding table unit for a body-in-white welding production line, comprising a track, a driving vehicle is arranged on the top of the track, a fixing frame is fixedly connected to the top of the driving vehicle, a pressure box is fixedly connected to the inner wall of the fixing frame, and a welding device is arranged on the side wall of the track;

[0005] A pressure mechanism, the pressure mechanism comprising a piston plate, an electric telescopic rod for raising and lowering the piston plate, and a gas storage assembly for storing excess compressed gas of the piston plate;

[0006] The top of the track is fixedly connected to the bottom of the electric telescopic rod, and one end of the electric telescopic rod away from the track is fixedly connected to the bottom of the piston plate.

[0007] Preferably, the air storage assembly includes a through hole 1 opened on the top of the piston plate, a square tube is fixedly connected to the bottom of the through hole 1, a movable plate is slidably connected to the inner wall of the square tube, and a clamping mechanism is fixedly connected to the inner wall of the air pressure box.

[0008] Preferably, the gas storage assembly also includes two strong springs fixedly connected to the bottom of the movable plate, one end of the strong spring away from the movable plate is fixedly connected to the bottom of the square tube, and a plurality of rubber strips are fixedly connected to the top of the piston plate.

[0009] Preferably, the clamping mechanism comprises a mounting plate fixedly connected to the inner wall of the air pressure box, a plurality of sliding grooves are provided on the top of the mounting plate, and a sealing plate is fixedly connected to the inner wall of the air pressure box.

[0010] Preferably, the clamping mechanism also includes a plurality of through holes 2 opened on the top of the sealing plate, a plurality of sliding grooves are slidably connected to the inner walls thereof with sliding columns, a plurality of sliding columns are through-connected to the bottoms thereof with transmission hoses, and a gas storage assembly is arranged inside the device. In the process of the piston plate moving upward, as the outward extension lengths of each extrusion block and the piston stop rod reach a limit and the high-pressure gas can no longer be transmitted through the transmission hose, the movable plate is subjected to the pressure of the high-pressure gas and slides downward along the inner wall of the through hole 1, thereby expanding the space between the piston plate and the sealing plate to form a gas storage space. Through the application of the above-mentioned components, it is ensured that the extrusion block still has sufficient clamping force when replacing different frames.

[0011] Preferably, the clamping mechanism also includes a transmission groove provided on the inner wall of the sliding column, and four sliding grooves 1 are provided on the side wall of the sliding column. The inner wall of the sliding groove 1 is connected through the inner wall of the transmission groove. As the piston plate continues to drive the piston plate to move upward, the piston plate will drive multiple rubber strips to move upward synchronously. In the process of the rubber strip moving upward, the top of the rubber strip will contact the bottom of the sealing plate, and the multiple rubber strips will block all the strong springs. At this time, all the strong springs are blocked, so that each transmission hose and the high-pressure gas inside the transmission groove form an independent space, and the gas in the independent space cannot circulate. At this time, the multiple clamping mechanisms and the fitting components will no longer change. Through the application of the above-mentioned components, it is ensured that after the equipment is clamped, when it is transported again by the driving vehicle, the frame will not be tilted due to the inertia of movement, thereby affecting the clamping effect.

[0012] Preferably, the clamping mechanism also includes an extrusion block slidably connected to the inner wall of the four sliding grooves, one end of the transmission hose away from the sliding column is connected to the inner wall of the through hole 2, and a fitting component is slidably connected to the inner wall of the extrusion block. Before use, it will be installed in the required position, and it is ensured that the driving vehicle can transport the air pressure box to the side wall of the welding equipment along the outer wall of the track. Before use, ensure that the electric telescopic rod is in a retracted state, and then place the frame flat on the top of the sliding column. At this time, the bottom of the frame will press the sliding column to slide downward along the bottom of the sliding groove, and because the bottom of the frame is mostly uneven state, making each sliding column slide down a different distance. After the frame is stable, the power of the electric telescopic rod is turned on, and the electric telescopic rod drives the piston plate to slide upward along the inner wall of the air pressure box, forcing the gas at the bottom of the sealing plate and the top of the through hole 2 to be input into the transmission groove through multiple transmission hoses. As the gas inside the transmission groove increases, the high-pressure gas will force the multiple extrusion blocks to slide outward along the inner wall of the sliding groove 1, and the multiple extrusion blocks extending outward will clamp and limit the chassis of the frame. Through the application of the above components, the device can clamp and limit different frames.

[0013] Preferably, the fitting component includes an air pressure groove opened on the inner wall of the extrusion block, a plurality of piston stop rods are slidably connected to the inner wall of the air pressure groove, and a transmission square tube is connected through the side walls of the four extrusion blocks. By utilizing the characteristics of the extrusion block clamping the frame chassis, a fitting component is arranged inside the equipment. Before use, ensure that the air pressure groove, the piston block 2 and the space between the plurality of piston stop rods form a closed space. When the extrusion block is moved outward along the inner wall of the sliding groove 1 by the high-pressure gas, the high-pressure gas will also force the piston block 2 to slide along the inner wall of the transmission square tube, presenting a Fig. 9 status.

[0014] Preferably, the fitting component also includes a piston block 2 which is slidably connected to the inner wall of the transmission square tube, a pulling spring is fixedly connected between the diagonal piston blocks 2, a return spring is fixedly connected to the inner wall of the sliding column, the other end of the return spring is fixedly connected to the inner wall of the sliding groove, and a limiting component is slidably connected to the top of the sliding column. When the piston block 2 moves to the right along the inner wall of the transmission square tube, the piston block 2 will force the gas inside the transmission square tube to push multiple piston stop rods to move horizontally to the right along the inner wall of the air pressure groove, and when the extrusion block contacts the frame chassis, the multiple piston stop rods move outward, and the piston stop rods can apply an extrusion force to the bottom of the frame according to the curvature of the contact surface. Through the application of the above-mentioned components, it is ensured that the equipment can adapt to the tortuous and changeable outer wall of the bottom of the vehicle when clamping, thereby improving the clamping effect.

[0015] Preferably, the limiting component includes four vertical slide grooves opened on the top of the sliding column, the top of the sliding column is fixedly connected with a compression spring, the end of the compression spring away from the sliding column is fixedly connected with a compression plate, the bottom of the compression plate is fixedly connected with an inclined plate, the outer wall of the inclined plate is slidably connected to the inner wall of the vertical slide groove, the top of the extrusion block is provided with a groove, the above-mentioned frame is used to generate a downward pressure on the sliding column, and a limiting component is arranged inside the device, when the frame is placed on the top of the sliding column, the bottom of the frame first contacts with the top of the compression plate, and the compressed The pressure plate will drive the inclined plate to move downward along the inner wall of the vertical slide groove, so that the vertical surface of the inclined plate contacts the inner wall of the groove, thereby limiting the outward movement force of the extrusion block in the sliding column. The top of the remaining sliding column is in the gap of the vehicle chassis, and the part of the pressure plate that is not under pressure moves outward after the high-pressure gas enters the transmission groove. Through the application of the above-mentioned components, the compressed sliding column is protected and the internal extrusion block cannot move outward, thereby preventing the corresponding extrusion block from extending outward during the downward movement of the sliding column, affecting the clamping effect of the equipment.

[0016] The present invention has the following beneficial effects:

[0017] (1) The present invention utilizes the fact that the bottom of the vehicle frame is mostly uneven, and a sliding column is arranged inside the device. Before use, it will be installed at the required position, and it is ensured that the driving vehicle can transport the air pressure box to the side wall of the welding equipment along the outer wall of the track. Before use, the electric telescopic rod is ensured to be in a retracted state, and then the vehicle frame is placed flat on the top of the sliding column. At this time, the bottom of the vehicle frame will force the sliding column to slide downward along the bottom of the sliding groove. Since the bottom of the vehicle frame is mostly uneven, the downward sliding distance of each sliding column is different. After the frame is stable, the power of the electric telescopic rod is turned on, and the electric telescopic rod drives the piston plate to slide upward along the inner wall of the air pressure box, forcing the gas at the bottom of the sealing plate and the top of the second through hole to be input into the transmission groove through multiple transmission hoses. As the gas inside the transmission groove increases, the high-pressure gas will force multiple extrusion blocks to slide outward along the inner wall of the sliding groove, and the multiple extrusion blocks extending outward will clamp and restrict the chassis of the vehicle frame. Through the application of the above components, the device can clamp and restrict different frames.

[0018] (2) The present invention utilizes the above-mentioned frame to generate a downward pressure force on the sliding column, and a limiting component is arranged inside the device. When the frame is placed on the top of the sliding column, the bottom of the frame first contacts the top of the pressure plate. At this time, the pressure plate under pressure will drive the inclined plate to move downward along the inner wall of the vertical slide groove, so that the vertical surface of the inclined plate contacts the inner wall of the groove, thereby limiting the outward movement force of the extrusion block in the sliding column. The top of the remaining part of the sliding column is located in the gap of the chassis, and the part of the pressure plate that is not under pressure moves outward after the high-pressure gas enters the transmission groove. Through the application of the above-mentioned component, the compressed sliding column is protected, and the internal extrusion block cannot move outward, thereby preventing the corresponding extrusion block from extending outward during the downward movement of the sliding column, thereby affecting the clamping effect of the equipment.

[0019] (3) The present invention utilizes the characteristics of the above-mentioned extrusion block clamping the chassis of the vehicle frame, and a fitting component is arranged inside the device. Before use, it is ensured that the space between the air pressure groove, the second piston block and the plurality of piston stop rods forms a closed space. When the extrusion block is moved outward along the inner wall of the sliding groove 1 by the high-pressure gas, the high-pressure gas will also force the second piston block to slide along the inner wall of the transmission square tube, presenting a Fig. 9 In the state, when the piston block 2 moves to the right along the inner wall of the transmission square tube, the piston block 2 will force the gas inside the transmission square tube to push multiple piston baffle rods to move horizontally to the right along the inner wall of the air pressure groove. When the extrusion block contacts the frame chassis, the multiple piston baffle rods move outward. The piston baffle rods can apply an extrusion force to the bottom of the frame according to the curvature of the contact surface. Through the application of the above components, it is ensured that the equipment can adapt to the tortuous and changeable outer wall of the bottom of the vehicle when clamping, thereby improving the clamping effect.

[0020] (4) In the present invention, as the piston plate continues to drive the piston plate to move upward, the piston plate will drive multiple rubber strips to move upward synchronously. During the upward movement of the rubber strips, the top of the rubber strips will contact the bottom of the sealing plate, and the multiple rubber strips will block all the strong springs. At this time, all the strong springs are blocked, so that the high-pressure gas inside each transmission hose and the transmission groove forms an independent space. The gas in the independent space cannot circulate, and the multiple clamping mechanisms and fitting components will no longer change. Through the application of the above components, it is ensured that after the equipment is clamped, when it is transported again by the driving vehicle, the frame will not tilt due to the inertia of movement, thereby affecting the clamping effect; in addition, an air storage component is arranged inside the equipment. During the upward movement of the piston plate, as the length of each extrusion block and the piston stop rod extending outward reaches the limit, the high-pressure gas can no longer be transmitted through the transmission hose. The movable plate is subjected to the pressure of the high-pressure gas and slides downward along the inner wall of the through hole 1, thereby expanding the space between the piston plate and the sealing plate to form an air storage space. Through the application of the above components, it is ensured that when different frames are replaced, the extrusion block still has sufficient clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of the internal components of the overall structure of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0025] Figure 4 It is a cross-sectional schematic diagram of the gas storage assembly of the present invention;

[0026] Figure 5 It is a cross-sectional schematic diagram of the internal components of the clamping mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the working state of the transmission hose of the present invention;

[0028] Figure 7 It is a schematic diagram of the sliding column of the present invention;

[0029] Figure 8 It is a cross-sectional schematic diagram of the bonding assembly of the present invention;

[0030] Fig. 9 It is a cross-sectional schematic diagram of the restriction assembly of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] In the figure: 1. track; 11. driving vehicle; 12. fixing frame; 13. air pressure box; 14. welding equipment; 2. pressure mechanism; 21. piston plate; 22. electric telescopic rod; 3. gas storage component; 31. through hole one; 32. square tube; 33. movable plate; 34. strong spring; 35. rubber strip; 4. clamping mechanism; 41. mounting plate; 42. sliding groove; 43. sealing plate; 44. through hole two; 45. sliding column; 46. transmission hose; 47. transmission groove; 48. sliding groove one; 49. extrusion block; 5. fitting component; 51. air pressure groove; 52. piston stop rod; 53. transmission square tube; 54. piston block two; 55. pulling spring; 56. reset spring; 6. limiting component; 61. vertical slide groove; 62. pressure spring; 63. pressure plate; 64. inclined plate; 65. groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1 - Figure 5 The present invention is a transverse sliding table unit for a body-in-white welding production line, comprising a track 1, a driving vehicle 11 is arranged on the top of the track 1, a fixing frame 12 is fixedly connected to the top of the driving vehicle 11, an air pressure box 13 is fixedly connected to the inner wall of the fixing frame 12, and a welding device 14 is arranged on the side wall of the track 1;

[0035] The pressure-bearing mechanism 2 includes a piston plate 21, an electric telescopic rod 22 for lifting and lowering the piston plate 21, and a gas storage component 3 for storing excess compressed gas of the piston plate 21;

[0036] The top of the track 1 is fixedly connected to the bottom of the electric telescopic rod 22 , and one end of the electric telescopic rod 22 away from the track 1 is fixedly connected to the bottom of the piston plate 21 .

[0037] The air storage assembly 3 includes a through hole 31 opened on the top of the piston plate 21, a square tube 32 is fixedly connected to the bottom of the through hole 31, a movable plate 33 is slidably connected to the inner wall of the square tube 32, and a clamping mechanism 4 is fixedly connected to the inner wall of the air pressure box 13.

[0038] The gas storage assembly 3 also includes two strong springs 34 fixedly connected to the bottom of the movable plate 33. One end of the strong spring 34 away from the movable plate 33 is fixedly connected to the bottom of the square tube 32. The top of the piston plate 21 is fixedly connected with a plurality of rubber strips 35.

[0039] The clamping mechanism 4 includes a mounting plate 41 fixedly connected to the inner wall of the air pressure box 13 , a plurality of sliding grooves 42 are formed on the top of the mounting plate 41 , and a sealing plate 43 is fixedly connected to the inner wall of the air pressure box 13 .

[0040] The clamping mechanism 4 also includes a plurality of through holes 44 opened on the top of the sealing plate 43, a plurality of sliding grooves 42 are slidably connected to the inner walls thereof with sliding columns 45, a plurality of sliding columns 45 are through-connected to the bottoms thereof with transmission hoses 46, and a gas storage assembly 3 is arranged inside the device. During the upward movement of the piston plate 21, as the outward extension lengths of the extrusion blocks 49 and the piston stop rods 52 reach their limits and the high-pressure gas can no longer be transmitted through the transmission hoses 46, the movable plate 33 is subjected to the pressure of the high-pressure gas and slides downward along the inner wall of the through hole 31, thereby expanding the space between the piston plate 21 and the sealing plate 43 to form a gas storage space. By applying the above-mentioned components, it is ensured that the extrusion blocks 49 still have sufficient clamping force when replacing different frames.

[0041] The clamping mechanism 4 also includes a transmission groove 47 provided on the inner wall of the sliding column 45, and four sliding grooves 48 are provided on the side wall of the sliding column 45. The inner wall of the sliding groove 48 is connected with the inner wall of the transmission groove 47. As the piston plate 21 continues to drive the piston plate 21 to move upward, the piston plate 21 will drive the multiple rubber strips 35 to move upward synchronously. In the process of the rubber strip 35 moving upward, the top of the rubber strip 35 will contact the bottom of the sealing plate 43, and the multiple rubber strips 35 will block all the strong springs 34. At this time, all the strong springs 34 are blocked, so that each transmission hose 46 and the high-pressure gas inside the transmission groove 47 form an independent space, and the gas in the independent space cannot circulate. At this time, the multiple clamping mechanisms 4 and the fitting components 5 will no longer change. Through the application of the above components, it is ensured that after the equipment is clamped, when it is transported again by the driving vehicle 11, the frame will not cause the body to tilt due to the inertia of movement, thereby affecting the clamping effect.

[0042] The clamping mechanism 4 also includes an extrusion block 49 slidably connected to the inner wall of the four sliding grooves 48. The end of the transmission hose 46 away from the sliding column 45 is connected to the inner wall of the through hole 2 44. The inner wall of the extrusion block 49 is slidably connected with a fitting component 5. Before use, it will be installed in the required position, and it is ensured that the driving vehicle 11 can transport the air pressure box 13 to the side wall of the welding equipment 14 along the outer wall of the track 1. Before use, ensure that the electric telescopic rod 22 is in a retracted state, and then place the frame flat on the top of the sliding column 45. At this time, the bottom of the frame will press the sliding column 45 to slide downward along the bottom of the sliding groove 42, and because the bottom of the frame is mostly uneven The state makes the downward sliding distance of each sliding column 45 different. After the frame is stable, the power of the electric telescopic rod 22 is turned on. The electric telescopic rod 22 drives the piston plate 21 to slide upward along the inner wall of the air pressure box 13, forcing the gas at the bottom of the sealing plate 43 and the top of the through hole 44 to be input into the transmission groove 47 through multiple transmission hoses 46. As the gas inside the transmission groove 47 increases, the high-pressure gas will force multiple extrusion blocks 49 to slide outward along the inner wall of the sliding groove 1 48, and the multiple extrusion blocks 49 extending outward will clamp and limit the chassis of the frame. Through the application of the above components, the device can clamp and limit different frames.

[0043] For example 2, please refer to Figure 6 - Fig. 9 The present invention is a transverse slide unit for a body-in-white welding production line. On the basis of the first embodiment, the fitting component 5 includes an air pressure groove 51 opened on the inner wall of the extrusion block 49, and a plurality of piston stop rods 52 are slidably connected to the inner wall of the air pressure groove 51. The side walls of the four extrusion blocks 49 are connected through with transmission square tubes 53. By utilizing the characteristics of the extrusion block 49 clamping the frame chassis, the fitting component 5 is arranged inside the equipment. Before use, ensure that the air pressure groove 51, the piston block 2 54 and the space between the plurality of piston stop rods 52 form a closed space. When the extrusion block 49 is moved outward along the inner wall of the sliding groove 1 48 by the high-pressure gas, the high-pressure gas will also force the piston block 2 54 to slide along the inner wall of the transmission square tube 53, presenting a Fig. 9 status.

[0044] The fitting component 5 also includes a piston block 2 54 slidably connected to the inner wall of the transmission square tube 53, a pulling spring 55 is fixedly connected between the diagonal piston blocks 2 54, a return spring 56 is fixedly connected to the inner wall of the sliding column 45, the other end of the return spring 56 is fixedly connected to the inner wall of the sliding groove 42, and a limiting component 6 is slidably connected to the top of the sliding column 45. When the piston block 2 54 moves to the right along the inner wall of the transmission square tube 53, the piston block 2 54 will force the internal gas of the transmission square tube 53 to push multiple piston stop rods 52 to move horizontally to the right along the inner wall of the air pressure groove 51, and when the extrusion block 49 contacts the frame chassis, the multiple piston stop rods 52 move outward, and the piston stop rods 52 can apply an extrusion force to the bottom of the frame according to the curvature of the contact surface. Through the application of the above components, it is ensured that the equipment can adapt to the tortuous and changeable outer wall of the bottom of the vehicle when clamping, thereby improving the clamping effect.

[0045] The limiting assembly 6 includes four vertical slide grooves 61 opened on the top of the sliding column 45, the top of the sliding column 45 is fixedly connected with a compression spring 62, the end of the compression spring 62 away from the sliding column 45 is fixedly connected with a compression plate 63, the bottom of the compression plate 63 is fixedly connected with an inclined plate 64, the outer wall of the inclined plate 64 is slidably connected with the inner wall of the vertical slide groove 61, and the top of the extrusion block 49 is provided with a groove 65. The above-mentioned frame is used to generate a downward pressure on the sliding column 45. The limiting assembly 6 is arranged inside the device. When the frame is placed on the top of the sliding column 45, the bottom of the frame first contacts with the top of the compression plate 63, and the compressed The pressure plate 63 will drive the inclined plate 64 to move downward along the inner wall of the vertical slide groove 61, so that the vertical surface of the inclined plate 64 contacts the inner wall of the groove 65, thereby limiting the outward movement force of the extrusion block 49 in the sliding column 45. The top of the remaining part of the sliding column 45 is located in the gap of the vehicle chassis. The part of the pressure plate 63 that is not under pressure, after the high-pressure gas enters the transmission groove 47, the extrusion block 49 moves outward. Through the application of the above-mentioned components, the compressed sliding column 45 and the internal extrusion block 49 cannot move outward, thereby preventing the corresponding extrusion block 49 from extending outward during the downward movement of the sliding column 45, thereby affecting the clamping effect of the equipment.

[0046] A specific application of this embodiment is: before use, the air pressure box 13 is installed at the desired position, and it is ensured that the driving vehicle 11 can transport the air pressure box 13 to the side wall of the welding equipment 14 along the outer wall of the track 1. Before use, the electric telescopic rod 22 is ensured to be in a retracted state, and then the frame is placed flat on the top of the sliding column 45. At this time, the bottom of the frame will press the sliding column 45 to slide downward along the bottom of the sliding groove 42. Since the bottom of the frame is mostly uneven, the sliding distance of each sliding column 45 is different. After the frame is stable, turn on the power. The electric telescopic rod 22 is powered, and the electric telescopic rod 22 drives the piston plate 21 to slide upward along the inner wall of the air pressure box 13, forcing the gas at the bottom of the sealing plate 43 and the top of the through hole 44 to be input into the transmission groove 47 through multiple transmission hoses 46. As the gas inside the transmission groove 47 increases, the high-pressure gas will force the multiple extrusion blocks 49 to slide outward along the inner wall of the sliding groove 1 48, and the multiple extrusion blocks 49 extending outward will clamp and restrict the chassis of the frame. Through the application of the above components, the device can clamp and restrict different frames.

[0047] The above-mentioned frame is used to generate a downward pressure on the sliding column 45, and a limiting component 6 is provided inside the equipment. When the frame is placed on the top of the sliding column 45, the bottom of the frame first contacts the top of the pressure plate 63. At this time, the compressed pressure plate 63 will drive the inclined plate 64 to move downward along the inner wall of the vertical slide groove 61, so that the vertical surface of the inclined plate 64 contacts the inner wall of the groove 65, thereby limiting the outward movement force of the extrusion block 49 in the sliding column 45. The top of the remaining sliding column 45 is located in the gap of the chassis, and the part of the pressure plate 63 that is not under pressure. After the high-pressure gas enters the transmission groove 47, the extrusion block 49 moves outward. Through the application of the above-mentioned components, the compressed sliding column 45 and the internal extrusion block 49 cannot move outward, so as to avoid the corresponding extrusion block 49 extending outward during the downward movement of the sliding column 45, thereby affecting the clamping effect of the equipment.

[0048] Taking advantage of the feature of the extrusion block 49 clamping the chassis of the vehicle frame, a fitting assembly 5 is provided inside the device. Before use, ensure that the space between the air pressure groove 51, the piston block 2 54 and the plurality of piston stop rods 52 forms a closed space. When the extrusion block 49 is moved outward along the inner wall of the sliding groove 1 48 by the high-pressure gas, the high-pressure gas will also force the piston block 2 54 to slide along the inner wall of the transmission square tube 53, presenting a Fig. 9In the state, when the piston block 2 54 moves to the right along the inner wall of the transmission square tube 53, the piston block 2 54 will force the gas inside the transmission square tube 53 to push the multiple piston stop rods 52 to move horizontally to the right along the inner wall of the air pressure groove 51, and when the extrusion block 49 contacts the frame chassis, the multiple piston stop rods 52 move outward, and the piston stop rods 52 can apply an extrusion force to the bottom of the frame according to the curvature of the contact surface. Through the application of the above components, it is ensured that the equipment can adapt to the tortuous and changeable outer wall of the bottom of the vehicle when clamping, thereby improving the clamping effect.

[0049] As the piston plate 21 continues to drive the piston plate 21 to move upward, the piston plate 21 will drive the multiple rubber strips 35 to move upward synchronously. During the upward movement of the rubber strips 35, the top of the rubber strips 35 will contact the bottom of the sealing plate 43, and the multiple rubber strips 35 will block all the strong springs 34. At this time, all the strong springs 34 are blocked, so that the high-pressure gas inside each transmission hose 46 and the transmission groove 47 forms an independent space, and the gas in the independent space cannot circulate. At this time, the multiple clamping mechanisms 4 and the fitting components 5 will no longer change. Through the application of the above components, it is guaranteed that the equipment will be clamped again after completion. When transporting by driving the vehicle 11, the frame will not tilt due to the inertia of movement, thereby affecting the clamping effect; in addition, an air storage assembly 3 is arranged inside the equipment. During the upward movement of the piston plate 21, as the length of each extrusion block 49 and the piston stop rod 52 extending outward reaches the limit, the high-pressure gas can no longer be transmitted through the transmission hose 46. The movable plate 33 is subjected to the pressure of the high-pressure gas and slides downward along the inner wall of the through hole 31, thereby expanding the space between the piston plate 21 and the sealing plate 43 to form an air storage space. Through the application of the above-mentioned components, it is ensured that when replacing different frames, the extrusion block 49 still has sufficient clamping force.

[0050] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A traverse slide unit for a body-in-white welding production line, comprising a track (1), a driving vehicle (11) being arranged on the top of the track (1), a fixing frame (12) being fixedly connected to the top of the driving vehicle (11), an air pressure box (13) being fixedly connected to the inner wall of the fixing frame (12), a welding device (14) being arranged on the side wall of the track (1), characterized in that: Also includes: A pressure-bearing mechanism (2), the pressure-bearing mechanism (2) comprising a piston plate (21), an electric telescopic rod (22) for raising and lowering the piston plate (21), and a gas storage assembly (3) for storing excess compressed gas of the piston plate (21); The top of the track (1) is fixedly connected to the bottom of the electric telescopic rod (22), and the end of the electric telescopic rod (22) away from the track (1) is fixedly connected to the bottom of the piston plate (21).

2. The traverse slide unit for a body-in-white welding production line according to claim 1, characterized in that: The gas storage assembly (3) comprises a through hole (31) formed on the top of the piston plate (21); a square tube (32) is fixedly connected to the bottom of the through hole (31); a movable plate (33) is slidably connected to the inner wall of the square tube (32); and a clamping mechanism (4) is fixedly connected to the inner wall of the air pressure box (13).

3. The traverse slide unit for a body-in-white welding production line according to claim 2, characterized in that: The gas storage assembly (3) further comprises two strong springs (34) fixedly connected to the bottom of the movable plate (33); one end of the strong spring (34) away from the movable plate (33) is fixedly connected to the bottom of the square tube (32); and a plurality of rubber strips (35) are fixedly connected to the top of the piston plate (21).

4. The traverse slide unit for a body-in-white welding production line according to claim 3, characterized in that: The clamping mechanism (4) comprises a mounting plate (41) fixedly connected to the inner wall of the air pressure box (13), a plurality of sliding grooves (42) are provided on the top of the mounting plate (41), and a sealing plate (43) is fixedly connected to the inner wall of the air pressure box (13).

5. The traverse slide unit for a body-in-white welding production line according to claim 4, characterized in that: The clamping mechanism (4) further comprises a plurality of through holes (44) formed on the top of the sealing plate (43); a plurality of sliding columns (45) are slidably connected to the inner walls of the plurality of sliding grooves (42); and a plurality of transmission hoses (46) are through-connected to the bottoms of the plurality of sliding columns (45).

6. The traverse slide unit for a body-in-white welding production line according to claim 5, characterized in that: The clamping mechanism (4) further comprises a transmission groove (47) formed on the inner wall of the sliding column (45), and four sliding grooves (48) are formed on the side wall of the sliding column (45), wherein the inner wall of the sliding groove (48) is connected to the inner wall of the transmission groove (47).

7. The traverse slide unit for a body-in-white welding production line according to claim 6, characterized in that: The clamping mechanism (4) further comprises an extrusion block (49) slidably connected to the inner wall of the four sliding grooves (48); one end of the transmission hose (46) away from the sliding column (45) is connected to the inner wall of the through hole (44); and a fitting assembly (5) is slidably connected to the inner wall of the extrusion block (49).

8. The traverse slide unit for a body-in-white welding production line according to claim 7, characterized in that: The fitting assembly (5) comprises an air pressure groove (51) provided on the inner wall of the extrusion block (49), a plurality of piston stop rods (52) are slidably connected to the inner wall of the air pressure groove (51), and transmission square tubes (53) are connected through the side walls of the four extrusion blocks (49).

9. The traverse slide unit for a body-in-white welding production line according to claim 8, characterized in that: The fitting component (5) also includes a second piston block (54) slidably connected to the inner wall of the transmission square tube (53), a pulling spring (55) is fixedly connected between the two piston blocks (54) diagonally, a return spring (56) is fixedly connected to the inner wall of the sliding column (45), the other end of the return spring (56) is fixedly connected to the inner wall of the sliding groove (42), and the top of the sliding column (45) is slidably connected to a limiting component (6).

10. The traverse slide unit for a body-in-white welding production line according to claim 9, characterized in that: The limiting assembly (6) includes four vertical slide grooves (61) opened at the top of the sliding column (45), the top of the sliding column (45) is fixedly connected with a compression spring (62), the end of the compression spring (62) away from the sliding column (45) is fixedly connected with a compression plate (63), the bottom of the compression plate (63) is fixedly connected with an inclined panel (64), the outer wall of the inclined panel (64) is slidably connected to the inner wall of the vertical slide groove (61), and the top of the extrusion block (49) is provided with a groove (65).

Images