A transverse sliding table unit for a body-in-white welding production line

Abstract

The present application relates to the technical field of body-in-white welding, and discloses a transverse sliding table unit for a body-in-white welding production line, which comprises a track, the top of the track is provided with a driving vehicle, the top of the driving vehicle is fixedly connected with a fixing frame, the inner wall of the fixing frame is fixedly connected with an air pressure box, before use, the electric telescopic rod is ensured to be in a retracted state, then the vehicle frame is placed flat on the top of the sliding column, since the bottom of the vehicle frame is mostly uneven, after the vehicle frame is stabilized, the power supply of the electric telescopic rod is connected, the electric telescopic rod drives the piston plate to slide upwards 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 two to be input into the transmission groove through the plurality of transmission hoses, and as the gas in the transmission groove increases, the high-pressure gas will force the plurality of extrusion blocks to slide outwards along the inner wall of the sliding groove one, and the plurality of extrusion blocks extending outwards will clamp and limit the chassis of the vehicle frame, so that the device can clamp and limit different vehicle frames.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of white body welding equipment, in particular to a transverse sliding table unit for a white body welding production line. BACKGROUND

[0002] White body refers to a body structure and a cover welding assembly, and includes a front wing plate, a door, an engine cover, a trunk lid, but does not include an uncoated body of accessories and decorations, when welding the white body, due to the large amount of work and high accuracy, with the development of science and technology, welding robots are now used to replace manual welding, so as to realize intelligent welding, welding is also called fusion, which is a manufacturing process and technology that connects metal or other thermoplastic materials such as plastic by heating, high temperature or high pressure, the use of welding robots improves the welding speed, and the white body only needs to be installed on the fixed slide rail for movement.

[0003] Among them, the welding fixture used in the white body welding production line mostly adopts a fixed welding mode, that is, according to the characteristics of the body structure, the sliding table unit is designed, which leads to the fact that the sliding table unit cannot change the clamping mode according to different body shapes, so that the equipment is difficult to meet the market demand of product diversification, in view of the above problems, the following scheme is proposed. SUMMARY

[0004] To solve the above technical problems, the present application provides a transverse sliding table unit for a white body welding production line, which comprises a track, a driving vehicle is arranged on the top of the track, a fixed frame is fixedly connected to the top of the driving vehicle, a gas pressure tank is fixedly connected to the inner wall of the fixed frame, and a welding equipment is arranged on the side wall of the track.

[0005] The pressure receiving mechanism comprises a piston plate, an electric telescopic rod for lifting the piston plate, and a gas storage assembly for storing excess compressed gas of the piston plate.

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

[0007] Preferably, the gas storage assembly comprises a through hole one opened in the top of the piston plate, the bottom of the through hole one is fixedly connected with a square tube, the inner wall of the square tube is slidably connected with a movable plate, and the inner wall of the gas pressure tank is fixedly connected with a clamping mechanism.

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

[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 formed in 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 further comprises a plurality of through holes two formed in the top of the sealing plate, a plurality of sliding columns are slidably connected to the inner walls of the sliding grooves, and a plurality of transmission hoses are connected to the bottoms of the sliding columns.

[0011] Preferably, the clamping mechanism further comprises a transmission groove formed in the inner wall of the sliding column, and four sliding grooves one are formed in the side wall of the sliding column, the inner walls of the sliding grooves one and the inner wall of the transmission groove are throughly connected, and the piston plate is continuously moved upward, and the plurality of rubber strips are synchronously moved upward.

[0012] Preferably, the clamping mechanism further comprises an extrusion block slidingly connected to the inner wall of the four sliding grooves, the end of the transmission hose away from the sliding column is connected to the inner wall of the through hole two, the inner wall of the extrusion block is slidingly connected to the fitting assembly, before use, it is installed at the desired 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, it is ensured that the electric telescopic rod is in the retracted state, then the vehicle frame is placed flat on the top of the sliding column, at this time, the bottom of the vehicle frame will press the sliding column to slide downward along the bottom of the sliding groove, and because the bottom of the vehicle frame is mostly uneven, the sliding distance of each sliding column is different, after the vehicle frame is stable, the power supply of the electric telescopic rod is turned on, 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 two to enter the transmission groove through the plurality of transmission hoses, and as the gas in the transmission groove increases, the high-pressure gas will force the plurality of extrusion blocks to slide outward along the inner wall of the sliding groove, and the plurality of extrusion blocks extending outward will clamp and limit the chassis of the vehicle frame, through the application of the above-mentioned assembly, the device can clamp and limit different vehicle frames.

[0013] Preferably, the fitting assembly comprises a gas pressure groove opened in the inner wall of the extrusion block, a plurality of piston stop rods are slidingly connected to the inner wall of the gas pressure groove, and a transmission square tube is connected through the side wall of the four extrusion blocks, by the characteristics of the above-mentioned extrusion block clamping the chassis of the vehicle frame, the fitting assembly is arranged inside the device, before use, it is ensured that the space between the gas pressure groove, the piston block two and the plurality of piston stop rods forms a sealed space, when the extrusion block moves outward along the inner wall of the sliding groove under the action of high-pressure gas, the high-pressure gas will also force the piston block two to slide along the inner wall of the transmission square tube, and the state as shown in Figure 9 .

[0014] Preferably, the fitting assembly further comprises a piston block two slidingly connected to the inner wall of the transmission square tube, a pulling spring is fixedly connected between the diagonal piston blocks two, 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 assembly is slidingly connected to the top of the sliding column, when the piston block two moves to the right along the inner wall of the transmission square tube, the piston block two will force the gas in the transmission square tube to push the plurality of piston stop rods to move rightward along the inner wall of the gas pressure groove, and when the extrusion block contacts the chassis of the vehicle frame, the outward movement of the plurality of piston stop rods, the piston stop rods can exert an extrusion force on the bottom of the vehicle frame according to the curvature of the contact surface, through the application of the above-mentioned assembly, it is ensured that the device can adapt to the outer wall of the vehicle bottom which is tortuous and variable when clamping, and the clamping effect is improved.

[0015] Preferably, the limiting assembly comprises four vertical sliding grooves opened at 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 in sliding connection with the inner wall of the vertical sliding groove, and the top of the extrusion block is provided with a groove. The above-mentioned frame generates a downward pressure on the sliding column, a limiting assembly is arranged in the equipment, when the frame is placed on the top of the sliding column, the bottom of the frame first contacts the top of the compression plate, at this time, the compressed compression plate drives the inclined plate to move downward along the inner wall of the vertical sliding groove, so that the vertical surface of the inclined plate contacts the inner wall of the groove, thereby limiting the outward movement of the extrusion block in the sliding column, and the top of the remaining part of the sliding column, the part of the compression plate in the gap of the vehicle chassis is not under pressure, after the high-pressure gas enters the inside of the transmission groove, the extrusion block moves outward, through the application of the above-mentioned assembly, it is ensured that the sliding column under pressure cannot move outward, and the corresponding extrusion block cannot extend outward in the process of moving downward of the sliding column, thereby affecting the clamping effect of the equipment.

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

[0017] (1) The present application utilizes the characteristics that the bottom of the frame is mostly uneven, a sliding column is arranged in the equipment, before use, the sliding column is installed at the required position, and it is ensured that the driving vehicle can transport the gas pressure box to the side wall of the welding equipment along the outer wall of the track, before use, it is ensured that the electric telescopic rod is in the retracted state, then the frame is placed 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, the sliding distances of the sliding columns are different, after the frame is stabilized, the power supply of the electric telescopic rod is connected, the electric telescopic rod drives the piston plate to slide upward along the inner wall of the gas pressure box, so that the gas at the bottom of the sealing plate and the top of the through hole two is input into the transmission groove through the plurality of transmission hoses, and as the gas in the transmission groove increases, the high-pressure gas will force the plurality of extrusion blocks to slide outward along the inner wall of the sliding groove, and the plurality of extrusion blocks extending outward will clamp and limit the chassis of the frame, through the application of the above-mentioned assembly, the equipment can clamp and limit different frames.

[0018] (2) The present application utilizes the above-mentioned frame to generate a downward pressure on the sliding column, and a limiting assembly is arranged inside the equipment, 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 sliding groove, so that the vertical surface of the inclined plate contacts the inner wall of the groove, thereby limiting the outward movement of the extrusion block in the sliding column, and the top of the remaining part of the sliding column, the part of the pressure plate in the gap of the vehicle chassis is not under pressure, after the high-pressure gas enters the inside of the transmission groove, the extrusion block moves outward, through the application of the above-mentioned assembly, it is ensured that the sliding column under pressure cannot move outward, and the corresponding extrusion block is prevented from extending outward during the downward movement of the sliding column, thereby affecting the clamping effect of the equipment.

[0019] (3) The present application utilizes the above-mentioned extrusion block to clamp the chassis of the vehicle, and a fitting assembly is arranged inside the equipment, before use, the space between the gas pressure groove, the piston block two and the plurality of piston stop rods forms a sealed space, when the extrusion block moves outward along the inner wall of the sliding groove one under high-pressure gas, the high-pressure gas will also force the piston block two to slide along the inner wall of the transmission square tube, and the state as shown in Figure 9 is presented, when the piston block two moves to the right along the inner wall of the transmission square tube, the piston block two will force the gas in the transmission square tube to push the plurality of piston stop rods to move rightward along the inner wall of the gas pressure groove, and when the extrusion block contacts the chassis of the vehicle, the outward movement of the plurality of piston stop rods enables the piston stop rods to exert an extrusion force on the bottom of the vehicle chassis according to the curvature of the contact surface, through the application of the above-mentioned assembly, it is ensured that the equipment can adapt to the variable outer wall of the vehicle chassis during clamping, thereby improving the clamping effect.

[0020] (4) The present application continues to drive the piston plate to move upward, at this time, the piston plate will drive the plurality of rubber strips to move upward synchronously, and in the process of upward movement of the rubber strips, the top of the rubber strips will contact the bottom of the sealing plate, and the plurality of rubber strips will block all the strong springs, at this time, all the strong springs are blocked, so that the high-pressure gas in the inside of each transmission hose and the transmission groove forms an independent space, and the gas in the independent space cannot circulate, and at this time, the plurality of clamping mechanisms and the fitting assembly will no longer change, through the application of the above-mentioned assembly, it is ensured that after the equipment completes clamping, when the vehicle is transported again by driving, the vehicle frame will not tilt due to the inertia of movement, thereby affecting the clamping effect; in addition, a gas storage assembly is arranged inside the equipment, when the length of each extrusion block and piston stop rod outwardly extending reaches the limit during the upward movement of the piston plate, the high-pressure gas can no longer transmit high-pressure gas through the transmission hose, the movable plate slides downward along the inner wall of the through hole one under the pressure of the high-pressure gas, the space between the piston plate and the sealing plate is expanded, and a gas storage space is formed, through the application of the above-mentioned assembly, it is ensured that the extrusion block still has sufficient clamping force when different vehicle frames are replaced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0022] Figure 1 It is a schematic view of the overall structure of the present application;

[0023] Figure 2 It is a schematic view of the internal components of the overall structure of the present application;

[0024] Figure 3 It is a schematic view of the clamping mechanism of the present application;

[0025] Figure 4 It is a schematic view of the gas storage assembly of the present application;

[0026] Figure 5 It is a schematic view of the internal components of the clamping mechanism of the present application;

[0027] Figure 6 It is a schematic view of the working state of the transmission hose of the present application;

[0028] Figure 7 It is a schematic view of the sliding column of the present application;

[0029] Figure 8 It is a schematic view of the fitting assembly of the present application;

[0030] Figure 9 It is a schematic view of the limiting assembly of the present application.

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

[0032] In the drawings, 1 is a track, 11 is a driving vehicle, 12 is a fixed frame, 13 is a gas pressure tank, 14 is a welding device, 2 is a pressure receiving mechanism, 21 is a piston plate, 22 is an electric telescopic rod, 3 is a gas storage assembly, 31 is a through hole one, 32 is a square tube, 33 is a movable plate, 34 is a strong spring, 35 is a rubber strip, 4 is a clamping mechanism, 41 is a mounting plate, 42 is a sliding groove, 43 is a sealing plate, 44 is a through hole two, 45 is a sliding column, 46 is a transmission hose, 47 is a transmission groove, 48 is a sliding groove one, 49 is a extrusion block, 5 is a fitting assembly, 51 is a gas pressure groove, 52 is a piston stopper, 53 is a transmission square tube, 54 is a piston block two, 55 is a pulling spring, 56 is a reset spring, 6 is a limiting assembly, 61 is a vertical sliding groove, 62 is a pressure receiving spring, 63 is a pressure receiving plate, 64 is an inclined plate, and 65 is a groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] Embodiment one, please refer to Figure 1 Figure 5 The present application is a kind of white body welding production line with horizontal moving sliding table unit, including track 1, the top of track 1 is provided with drive car 11, the top of drive car 11 is fixedly connected with fixed frame 12, the inner wall of fixed frame 12 is fixedly connected with air pressure tank 13, the side wall of track 1 is provided with welding equipment 14;

[0035] Compression mechanism 2, compression mechanism 2 includes piston plate 21, electric telescopic rod 22 for lifting piston plate 21, gas storage assembly 3 for storing excess compressed gas of piston plate 21;

[0036] The top of drive car 11 is connected with the bottom of electric telescopic rod 22, the end of electric telescopic rod 22 away from track 1 is fixedly connected with the bottom of piston plate 21.

[0037] Gas storage assembly 3 includes through hole one 31 opened in the top of piston plate 21, the bottom of through hole one 31 is fixedly connected with square tube 32, the inner wall of square tube 32 is slidably connected with movable plate 33, the inner wall of air pressure tank 13 is fixedly connected with clamping mechanism 4.

[0038] Gas storage assembly 3 further includes two strong springs 34 fixedly connected at the bottom of movable plate 33, the end of strong spring 34 away from movable plate 33 is fixedly connected with the bottom of square tube 32, the top of piston plate 21 is fixedly connected with several rubber strips 35.

[0039] Clamping mechanism 4 includes mounting plate 41 fixedly connected at the inner wall of air pressure tank 13, the top of mounting plate 41 is provided with several sliding grooves 42, the inner wall of air pressure tank 13 is fixedly connected with sealing plate 43.

[0040] ​The clamping mechanism 4 further comprises a plurality of through holes two 44 formed in the top of the sealing plate 43, the inner walls of the plurality of sliding grooves 42 are slidingly connected with sliding columns 45, the bottoms of the plurality of sliding columns 45 are throughly connected with transmission hoses 46, a gas storage assembly 3 is arranged inside the equipment, and during the movement of the piston plate 21, when the length of the outward extension of each extrusion block 49 and the piston stop rod 52 reaches the limit, the high-pressure gas can no longer transmit the high-pressure gas through the transmission hose 46, the movable plate 33 is pressed by the high-pressure gas, slides downward along the inner wall of the through hole one 31, expands the space between the piston plate 21 and the sealing plate 43, and forms a gas storage space, and through the application of the above-mentioned assembly, it is ensured that the extrusion block 49 still has sufficient clamping force when different vehicle frames are replaced.

[0041] The clamping mechanism 4 further comprises a transmission groove 47 formed in the inner wall of the sliding column 45, four sliding grooves one 48 are formed in the side wall of the sliding column 45, the inner walls of the sliding grooves one 48 and the inner wall of the transmission groove 47 are throughly connected, as the piston plate 21 continues to move upward, the piston plate 21 will drive the plurality of rubber strips 35 to move upward synchronously, and during the movement of the rubber strip 35, the top of the rubber strip 35 will be in contact with the bottom of the sealing plate 43, and the plurality of 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 in each transmission hose 46 and the transmission groove 47 forms an independent space, and the gas in the independent space cannot circulate, and at this time, the plurality of clamping mechanisms 4 and the abutting assembly 5 will no longer change, through the application of the above-mentioned assembly, it is ensured that when the equipment is clamped and then transported by the driving vehicle 11 again, the vehicle frame will not tilt due to the inertia of movement, which affects the clamping effect.

[0042] The clamping mechanism 4 further comprises extrusion blocks 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 44, the inner wall of the extrusion block 49 is slidably connected to the fitting assembly 5, which is installed at the desired position before use, and ensures that the driving vehicle 11 can transport the air pressure tank 13 along the outer wall of the track 1 to the side wall of the welding equipment 14 before use, and the electric telescopic rod 22 is in the retracted state before use, then the vehicle frame is placed flat on the top of the sliding column 45, at this time the bottom of the vehicle frame will press the sliding column 45 to slide downward along the bottom of the sliding groove 42, and because the bottom of the vehicle frame is usually uneven, the sliding distance of each sliding column 45 is different, after the vehicle frame is stable, the power supply 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 tank 13, forcing the gas at the bottom of the sealing plate 43 and the top of the through hole 44 to enter the transmission groove 47 through the plurality of transmission hoses 46, and as the gas in the transmission groove 47 increases, the high-pressure gas will force the plurality of extrusion blocks 49 to slide outward along the inner wall of the sliding groove 48, and the plurality of extrusion blocks 49 extending outward will clamp and limit the chassis of the vehicle frame. Through the application of the above-mentioned assembly, the device can clamp and limit different vehicle frames.

[0043] Embodiment two, please refer to Figure 6 - Figure 9 The present application is a kind of white body welding production line with horizontal movement sliding table unit, on the basis of embodiment one, the fitting assembly 5 comprises a gas pressure groove 51 opened in the inner wall of the extrusion block 49, a plurality of piston blocks 52 are slidably connected to the inner wall of the gas pressure groove 51, and a plurality of transmission square tubes 53 are connected through the side wall of the four extrusion blocks 49, by using the characteristics of the above-mentioned extrusion block 49 clamping the chassis of the vehicle frame, the fitting assembly 5 is provided in the device, before use, the space between the gas pressure groove 51, the piston block 54 and the plurality of piston blocks 52 forms a sealed space, when the extrusion block 49 is moved outward along the inner wall of the sliding groove 48 under high pressure gas, the high pressure gas will also force the piston block 54 to slide along the inner wall of the transmission square tube 53, and the state is as shown in Figure 9 .

[0044] The fitting assembly 5 further comprises piston blocks two 54 slidingly connected at the inner wall of the transmission tube 53, and the piston blocks two 54 are fixedly connected with pulling springs 55 at opposite angles, the inner wall of the sliding column 45 is fixedly connected with a return spring 56, the other end of the return spring 56 is fixedly connected with the inner wall of the sliding groove 42, the top of the sliding column 45 is slidingly connected with a limiting assembly 6, when the piston blocks two 54 move along the inner wall of the transmission tube 53 to the right, the piston blocks two 54 will force the gas inside the transmission tube 53 to push the plurality of piston stop rods 52 to move rightwards along the inner wall of the air pressure groove 51, and when the pressing block 49 contacts the vehicle chassis, the piston stop rods 52 can exert a pressing force on the bottom of the vehicle chassis according to the curvature of the contact surface, and through the application of the above assembly, the device can adapt to the variable outer wall of the vehicle bottom when clamping, thereby improving the clamping effect.

[0045] The limiting assembly 6 comprises four vertical sliding grooves 61 opened at the top of the sliding column 45, the top of the sliding column 45 is fixedly connected with a pressure spring 62, the end of the pressure spring 62 away from the sliding column 45 is fixedly connected with a pressure plate 63, the bottom of the pressure plate 63 is fixedly connected with an inclined plate 64, the outer wall of the inclined plate 64 is slidingly connected with the inner wall of the vertical sliding groove 61, and the top of the pressing block 49 is provided with a groove 65, the above vehicle generates a downward pressure on the sliding column 45, and the limiting assembly 6 is arranged inside the device, when the vehicle is placed on the top of the sliding column 45, the bottom of the vehicle first contacts the top of the pressure plate 63, at this time the pressure plate 63 under pressure will drive the inclined plate 64 to move downwards along the inner wall of the vertical sliding 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 of the pressing block 49 inside the sliding column 45, and the top of the remaining part of the sliding column 45, the part of the pressure plate 63 not under pressure in the gap of the vehicle chassis, after the high-pressure gas enters the inside of the transmission groove 47, the pressing block 49 moves outward, through the application of the above assembly, the sliding column 45 under pressure cannot move outward, and the corresponding pressing block 49 cannot extend outward during the downward movement of the sliding column 45, thereby affecting the clamping effect of the device.

[0046] One specific application of the embodiment is: before use, install it in the required position, and ensure that the driving vehicle 11 can transport the air pressure box 13 along the outer wall of the track 1 to the side wall of the welding equipment 14 before use, ensure that the electric telescopic rod 22 is in the retracted state, then place the vehicle frame flat on the top of the sliding column 45, at this time the bottom of the vehicle frame will press the sliding column 45 to slide down along the bottom of the sliding groove 42, and because the bottom of the vehicle frame is mostly uneven, the sliding distance of each sliding column 45 is different, after the vehicle frame is stable, turn on the power of the electric telescopic rod 22, the electric telescopic rod 22 drives the piston plate 21 to slide up 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 two 44 to enter the transmission groove 47 through the plurality of transmission hoses 46, and as the gas in the transmission groove 47 increases, the high-pressure gas will force the plurality of extrusion blocks 49 to slide outward along the inner wall of the sliding groove one 48, and the outwardly extending extrusion blocks 49 will clamp and limit the chassis of the vehicle frame. Through the application of the above components, the device can clamp and limit different vehicle frames.

[0047] By using the above vehicle frame to generate a downward pressure on the sliding column 45, a limiting component 6 is provided inside the device, when the vehicle frame is placed on the top of the sliding column 45, the bottom of the vehicle frame first contacts the top of the stressed plate 63, at this time the stressed plate 63 will drive the inclined plate 64 to move downward along the inner wall of the vertical sliding 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 of the extrusion block 49 in the sliding column 45, and the top of the remaining sliding column 45, which is in the gap of the vehicle chassis, 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 components, it is ensured that the stressed sliding column 45 cannot move outward, and the corresponding extrusion block 49 is prevented from extending outward during the downward movement of the sliding column 45, which affects the clamping effect of the device.

[0048] By using the above extrusion block 49 to clamp the chassis of the vehicle, a fitting component 5 is provided inside the device, before use, ensure that the space between the air pressure groove 51, the piston block two 54 and the plurality of piston stop rods 52 forms a sealed space, when the extrusion block 49 is moved outward along the inner wall of the sliding groove one 48 by high-pressure gas, the high-pressure gas will also force the piston block two 54 to slide along the inner wall of the transmission square tube 53, as shown in Figure 9When the piston block 2 moves to the right along the inner wall of the transmission tube 3, the piston block 2 will push the gas in the transmission tube 3 to move the piston block 2 to the right along the inner wall of the transmission tube 3, and when the extrusion block 49 contacts the chassis, the piston block 2 will move outward, and the piston block 2 can exert an extrusion force on the chassis according to the curvature of the contact surface, thereby ensuring that the device can adapt to the curved outer wall of the chassis during clamping and improving the clamping effect.

[0049] When the piston plate 21 continues to move upward, the rubber strips 35 will move upward synchronously, and the top of the rubber strips 35 will contact the bottom of the sealing plate 43 during the upward movement of the rubber strips 35, and the rubber strips 35 will block all the strong springs 34, and at this time, the high-pressure gas in the transmission hose 46 and the transmission groove 47 forms an independent space, and the gas in the independent space cannot flow, and at this time, the clamping mechanism 4 and the fitting assembly 5 will not change, thereby ensuring that the chassis will not tilt during transportation by the driving vehicle 11 after clamping, thereby affecting the clamping effect; in addition, the device is provided with the gas storage assembly 3, and when the length of the extrusion block 49 and the piston block 2 reaches the limit during the upward movement of the piston plate 21, the high-pressure gas cannot be transmitted through the transmission hose 46, and the movable plate 33 slides downward along the inner wall of the through hole 1 under the pressure of the high-pressure gas, thereby expanding the space between the piston plate 21 and the sealing plate 43 and forming a gas storage space, and the extrusion block 49 still has sufficient clamping force when different chassis are replaced.

[0050] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and do not limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A transverse sliding table unit for a body-in-white welding production line, comprising a track (1), the top of the track (1) is provided with a driving vehicle (11), the top of the driving vehicle (11) is fixedly connected with a fixing frame (12), the inner wall of the fixing frame (12) is fixedly connected with an air pressure box (13), the side wall of the track (1) is provided with a welding device (14), characterized in that, Also include: The pressure mechanism (2) includes a piston plate (21), an electric telescopic rod (22) for lifting the piston plate (21), a gas storage assembly (3) for storing excess compressed gas of the piston plate (21); The top of the drive car (11) is connected with the bottom of the electric telescopic rod (22), and the end away from the track (1) of the electric telescopic rod (22) is fixedly connected with the bottom of the piston plate (21); The gas storage assembly (3) includes a through hole one (31) opened in the top of the piston plate (21), the bottom of the through hole one (31) is fixedly connected with a square tube (32), the inner wall of the square tube (32) is slidably connected with a movable plate (33), and the inner wall of the gas tank (13) is fixedly connected with a clamping mechanism (4); 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 with the bottom of the square tube (32), and the top of the piston plate (21) is fixedly connected with a plurality of rubber strips (35); The clamping mechanism (4) includes a mounting plate (41) fixedly connected to the inner wall of the gas tank (13), a plurality of sliding grooves (42) are formed in the top of the mounting plate (41), and the inner wall of the gas tank (13) is fixedly connected with a sealing plate (43); The clamping mechanism (4) further comprises a plurality of through holes two (44) opened in the top of the sealing plate (43), a plurality of sliding grooves (42) are slidably connected with a sliding column (45), and the bottom of the sliding column (45) is connected with a transmission hose (46); The clamping mechanism (4) further comprises a transmission groove (47) opened in the inner wall of the sliding column (45), four sliding grooves one (48) are formed in the side wall of the sliding column (45), and the inner wall of the sliding groove one (48) is connected with the inner wall of the transmission groove (47); The clamping mechanism (4) further comprises an extrusion block (49) slidably connected to the inner wall of the four sliding grooves one (48), one end of the transmission hose (46) away from the sliding column (45) is connected with the inner wall of the through hole two (44), and the inner wall of the extrusion block (49) is slidably connected with a fitting assembly (5); The top of the sliding column (45) is slidably connected with a limiting assembly (6); The limiting assembly (6) includes four vertical sliding grooves (61) opened in the top of the sliding column (45), the top of the sliding column (45) is fixedly connected with a pressure spring (62), one end of the pressure spring (62) away from the sliding column (45) is fixedly connected with a pressure plate (63), the bottom of the pressure 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 sliding groove (61), and the top of the extrusion block (49) is provided with a groove (65).

2. The transverse sliding table unit for a body-in-white welding production line according to claim 1, characterized in that: The fitting assembly (5) comprises air pressure grooves (51) formed in the inner wall of the extrusion blocks (49), the inner wall of the air pressure grooves (51) is slidably connected with a plurality of piston stop rods (52), and the sidewall of the four extrusion blocks (49) is throughly connected with a transmission square tube (53).

3. The transverse sliding table unit for a body-in-white welding production line according to claim 2, characterized in that: The fitting assembly (5) further comprises piston blocks two (54) slidably connected in the inner wall of the transmission square tube (53), the diagonal piston blocks two (54) are fixedly connected with pulling springs (55), the inner wall of the sliding column (45) is fixedly connected with a return spring (56), and the other end of the return spring (56) is fixedly connected with the inner wall of the sliding groove (42).

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