CN115122026B - Bearing platform for all-aluminum car body assembly - Google Patents
Bearing platform for all-aluminum car body assembly Download PDFInfo
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- CN115122026B CN115122026B CN202210900688.3A CN202210900688A CN115122026B CN 115122026 B CN115122026 B CN 115122026B CN 202210900688 A CN202210900688 A CN 202210900688A CN 115122026 B CN115122026 B CN 115122026B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
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- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a bearing platform for splicing an all-aluminum car body, which relates to the field of bearing platforms; the automobile comprises an automobile body, a top beam and a base, wherein the top beam and the base are relatively and fixedly arranged through external connecting pieces; the lower end of the top beam is fixedly provided with a vertical telescopic driving piece, the lower end of the driving piece is fixedly provided with a connecting cylinder, the connecting cylinder is elastically and slidably provided with a positioning compression bar through a first spring, and the positioning compression bar and the connecting cylinder are coaxially arranged; the lower end of the positioning compression bar is fixedly provided with a bottom template; the automobile body comprises a bottom plate and wing plates which are required to be symmetrically and fixedly arranged on two sides of the bottom plate; two groups of completely symmetrical positioning assemblies are fixedly arranged at both ends of the truss and both ends of the top beam together; the positioning device is used for positioning the relative positions of the bottom plate and the wing plate; a b column is arranged in the middle of the wing plate; the invention solves the technical problems of unreliable positioning and complex positioning means of the traditional bearing platform.
Description
Technical Field
The invention relates to the field of bearing platforms, in particular to an all-aluminum bearing platform for car body assembly.
Background
All-aluminum car bodies are favored by a plurality of customers due to the light weight of the all-aluminum car bodies; thus, more and more manufacturers invest a great deal of research and development expenses for the development of the all-aluminum vehicle body; however, in the development process of all-aluminum vehicles, a small number of vehicle bodies for testing are often required to be produced, and a production line is designed for a small number of test vehicles, so that a general tool is usually adopted in a small number of test assembly vehicles, and the production line cannot be designed.
The traditional car body split bearing platform is basically formed by a base with a bottom plate for positioning, when welding wing plates, workers are often required to hold up for welding, however, because a human body is easy to shake, aluminum is softer, and the whole aluminum car body is easy to deform during welding, the precision of the welding process of the wing plates is usually low, the proper installation position can be provided for a top plate, a front windshield and the like only by later correction, when the wing plates deform during welding, even if the later correction is carried out, each position of the car body cannot be guaranteed to be identical with design parameters, so that the installation precision of the following parts is further influenced, the whole aesthetic degree of the car body is influenced, and the later safety problem of the whole aluminum car body is possibly caused due to insufficient precision.
Based on the above, the invention designs an all-aluminum car body split bearing platform to solve the above problems.
Disclosure of Invention
The invention aims to provide a bearing platform for splicing an all-aluminum car body, which is used for solving the problems in the background technology.
In order to achieve the above object, the present invention provides the following solutions: the bearing platform for the all-aluminum car body assembly comprises a car body, a top beam and a base, wherein the top beam and the base are relatively and fixedly arranged through external connecting pieces; the method is characterized in that: the lower end of the top beam is fixedly provided with a vertically telescopic driving piece, the lower end of the driving piece is fixedly provided with a connecting cylinder, the connecting cylinder is elastically and slidably provided with a positioning pressure rod through a first spring, and the positioning pressure rod and the connecting cylinder are coaxially arranged; the lower end of the positioning compression bar is fixedly provided with a bottom template; a blocking edge is arranged in the middle of the positioning compression bar and is arranged in a sealing sliding manner with the inner wall of the connecting cylinder; a limiting edge is arranged in the middle of the connecting cylinder and is in sealing sliding connection with the outer wall of the positioning compression bar; the limiting edge, the blocking edge, the positioning compression bar and the connecting cylinder form a hydraulic cavity together; a through groove is formed in the positioning compression bar above the edge; an annular communicating chamber (the annular communicating chamber has the function of ensuring that the hydraulic pressures received by the two telescopic rods are completely synchronous and equal) is arranged in the corresponding positioning compression bar at the upper end of the through groove, and two telescopic rods are symmetrically arranged outside the annular communicating chamber; the truss is fixedly arranged at the upper end of the positioning compression bar;
the automobile body comprises a bottom plate and wing plates which are required to be symmetrically and fixedly arranged on two sides of the bottom plate; two groups of completely symmetrical positioning assemblies are fixedly arranged at both ends of the truss and both ends of the top beam together; the positioning device is used for positioning the relative positions of the bottom plate and the wing plate; a b column is arranged in the middle of the wing plate;
the positioning assembly comprises symmetrically fixed corrugated pipes, fork seats are fixedly arranged at the lower ends of the two corrugated pipes, and the two fork seats are fixedly connected through a connecting piece; the middle part of each fork seat is symmetrically and elastically provided with a pre-clamping piece in a sliding manner, each pre-clamping piece is provided with a guide wedge surface, and the distance between the guide wedge surfaces on the two pre-clamping pieces on the same fork seat in a free state is smaller than the thickness of the wing plate; the lower ends of the same side of the two fork seats are provided with a rotating rod through the common rotation of the torsion springs, the outer sides of the two ends of the rotating rod are provided with positioning plates through elastic mounting seats, and the two positioning plates are oppositely arranged; the middle part of the rotating rod is also radially and fixedly provided with a driving rod and a triggering rod, and an included angle exists between the triggering rod and the driving rod;
the positioning assembly further comprises a mounting plate arranged at the end part of the truss, the mounting plate is connected with the truss through an adjusting part, and the adjusting part is used for adjusting the distance between the mounting plate and the axis of the connecting cylinder; the mounting plate is rotatably provided with a synchronous gear, synchronous racks which are symmetrical relative to the axis of the synchronous gear are meshed on the synchronous gear (the cooperation between the synchronous gear and the synchronous racks can ensure that the positioning plate and the second template can simultaneously position the wing plate), and the outer side end parts of the two synchronous racks relative to the synchronous gear are fixedly provided with a driving plate through the mounting plate; the driving plate is provided with a second template; the outer contours of the two second templates can be attached to the b column, and one side, close to the connecting cylinder axis, of the driving plate is connected with the contact plate through the second spring (the second spring has the function of mainly buffering and preventing the wing plate from being extruded and deformed due to overlarge force of the driving piece); the distance between the two driving plates is larger than the distance between the outer sides of the two trigger rods, so that the two trigger rods can be driven to rotate in opposite directions through the driving plates;
the telescopic rod is internally provided with an elastic piece, the telescopic rod is internally communicated with the annular communication chamber, and the touch plate is positioned on a telescopic path of the telescopic rod.
Working principle: as shown in fig. 1: firstly, placing a bottom plate of a vehicle body on the base, and positioning by a positioning column to prevent the bottom plate from sliding and influencing the precision in the process of positioning the wing plates; then, the two wing plates are sequentially moved to the mounting position of the bottom plate, and then the fork seat is pulled downwards to extend the corrugated pipe (the damping type corrugated pipe has the property of stopping immediately after pulling, positioning can be completed without external fixing pieces, the means are simple and can be operated by a single person), the pre-clamping pieces on the fork seat further clamp the two sides of the wing plates to complete the pre-positioning process (the pre-positioning function is to prevent the wing plates from falling down), so that after the two wing plates are fixed, the two wing plates are reliably positioned: the reliable positioning process is (for example, one side of the positioning process):
opening the driving piece to enable the driving piece to drive the connecting cylinder to move downwards: in the downward movement process of the driving piece, as the first spring is arranged between the connecting cylinder and the positioning pressure rod, the connecting cylinder and the positioning pressure rod synchronously move downward in the initial stage, when the bottom template at the lower end of the positioning pressure rod is contacted with the bottom plate, the bottom template and the positioning pressure rod are limited by the bottom plate (through the design of the size, when the bottom template is limited by the bottom plate, the driving plate is positioned on the side face of the trigger rod, and the second template is positioned on the side edge of the b column), so that the movement is stopped; the connecting cylinder is driven by the driving member to move downwards continuously, so that the connecting and positioning compression rods generate relative displacement (the first spring is compressed at the moment), as shown in fig. 6: when the positioning compression bar and the connecting cylinder are relatively displaced, the positioning compression bar is in contact with the connecting cylinder: the distance between the limiting edge and the blocking edge is reduced, and the volume of the hydraulic cavity is further reduced, so that hydraulic fluid in the hydraulic cavity is extruded to the annular communication chamber through the through groove, and further, the liquid extrusion telescopic rod is extended (an elastic piece is stretched at the moment, and when the driving piece is contracted, the elastic piece drives the telescopic rod to reset); as shown in fig. 4: the extension of the telescopic rod will squeeze the touch plate, so that the driving plate is squeezed to move transversely through the second spring (note that in the whole movement process of the telescopic rod, the positioning press rod is static, and the telescopic rod is arranged on the positioning press rod, so that the telescopic rod is in complete transverse telescopic movement in the telescopic process), and the driving plate contacted with the second spring can drive the other driving plate to move in opposite directions through the synchronous gear and the synchronous rack, so that the purpose that two second templates clamp the b column is achieved (the columnar appearance characteristics of the b column are obvious and the b column is easy to position reliably).
At the same time, the following steps are carried out: the lower ends of the driving plates at two sides can simultaneously extrude two trigger rods (shown in figure 4) fixed on the rotating rods to rotate towards the wing plates, and the positioning plates are further driven to be close to each other by the driving rods rotating inwards, so that the purpose of clamping the wing plates to prevent welding deformation or welding deviation caused by inaccurate positioning is achieved (the outer contours of the two driving plates can be designed according to the outer contour of a vehicle body).
When welding (splicing) is finished, the whole device can move reversibly, so that only the driving part is required to reset, and all parts can do reset movement (the movement process is completely opposite to the clamping process and is not repeated).
The invention has the beneficial effects that: firstly, the method of reliable positioning and then splicing is adopted, so that the internal stress of the automobile body cannot be received in the process of splicing the automobile body. According to the invention, the wing plate can be pre-positioned by single person operation through the pre-clamping piece, and the large-area multi-position positioning and clamping of the wing plate can be realized through the vertical movement of the single driving piece, and the positioning means can not influence the welding visual field and operation. The method is simple and reliable in effect, the positioning and welding tasks can be completed by a single person, the labor cost is saved, the welding efficiency is improved, the whole equipment is simple in parts, the processing is simple, and the maintenance cost is low.
Furthermore: according to the invention, the wing plates are clamped in a surface contact manner through the second template and the positioning plate, so that the clamping stability can be improved, the second template and the positioning plate are arranged relatively vertically, the deformation of the wing plates in a clamping state is difficult to occur, and in addition, the transverse length of the positioning plate, which is close to the welding position, of the positioning plate is larger, so that the local deformation is difficult to occur during welding between the wing plates and the bottom plate.
As a further technical scheme of the invention, the base is also movably provided with a positioning column so as to facilitate the positioning of the bottom plate.
The invention further provides a bottom template comprising a base plate, an adjusting plate and a first template; the base plate is fixedly arranged on the lower end face of the positioning compression bar; the contour of the lower end face of the first template is matched with the contour of the bottom plate; the base plate is connected with the first template through an adjusting plate; the adjusting plate is used for adjusting the distance between the truss and the bottom plate. The invention can be used in a wider range.
As a further technical scheme of the invention, the length of the trigger rod is longer than that of the driving rod. Forming a labor-saving lever.
As a further technical scheme of the invention, the outer side of the positioning plate is fixedly provided with a reinforcing rib, and the driving rod is in contact with the reinforcing rib. And positioning is more reliable.
As a further technical scheme of the invention, the surfaces of the positioning plate, the second template and the first template, which are contacted with the vehicle body, are all coated with buffer layers. Preventing the car body from being scratched.
It should be noted that; the vehicle body assembly with the bearing platform suitable for more outlines can be realized through the replacement of the first template, the second template and the positioning plate.
Compared with the prior art, the invention has the beneficial effects that:
1. firstly, the method of reliable positioning and then splicing is adopted, so that the internal stress of the automobile body cannot be received in the process of splicing the automobile body. According to the invention, the wing plate can be pre-positioned by single person operation through the pre-clamping piece, and the large-area multi-position positioning and clamping of the wing plate can be realized through the vertical movement of the single driving piece, and the positioning means can not influence the welding visual field and operation. The method is simple and reliable in effect, the positioning and welding tasks can be completed by a single person, the labor cost is saved, the welding efficiency is improved, the whole equipment is simple in parts, the processing is simple, and the maintenance cost is low.
2. Furthermore: according to the invention, the wing plates are clamped in a surface contact manner through the second template and the positioning plate, so that the clamping stability can be improved, the second template and the positioning plate are arranged relatively vertically, the deformation of the wing plates in a clamping state is difficult to occur, and in addition, the transverse length of the positioning plate, which is close to the welding position, of the positioning plate is larger, so that the local deformation is difficult to occur during welding between the wing plates and the bottom plate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the front view of the present invention;
FIG. 2 is a schematic view of a part A of the enlarged structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the general structure of the invention with a hidden rear view and a front view of a wing plate;
FIG. 4 is a schematic view of a part B of FIG. 3 in a partially enlarged configuration according to the present invention;
FIG. 5 is a schematic view of the cross-sectional structure of the connecting cylinder of the present invention;
fig. 6 is a schematic view of a part C of fig. 5 in a partially enlarged structure according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1-base, 2-locating post, 3-body, 3-1-wing, 3-2-floor, 3-3-b post, 4-roof rail, 5-drive, 6-connecting cylinder, 6-1-limit lip, 7-bellows, 8-base template, 8-1-base plate, 8-2-adjusting plate, 8-3-first template, 9-first spring, 10-truss, 11-telescoping rod, 11-1-spring, 12-adjusting part, 13-mounting plate, 13-1-rack-in-sync, 13-2-synchro gear, 14-yoke, 15-drive plate, 16-turn bar, 17-pre-clamp, 17-1-guide wedge, 18-trigger lever, 19-drive lever, 20-mount, 21-locating plate, 21-1-stiffener, 22-locating strut, 22-1-stop lip, 22-2-through slot, 22-3-annular communication chamber, 23-second template, 24-touch plate, 25-second spring, 26-hydraulic chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the bearing platform for the all-aluminum car body assembly comprises a car body 3, a top beam 4 and a base 1, wherein the top beam 4 and the base 1 are relatively and fixedly arranged through external connecting pieces; the method is characterized in that: the lower end of the top beam 4 is fixedly provided with a vertically telescopic driving piece 5, the lower end of the driving piece 5 is fixedly provided with a connecting cylinder 6, the connecting cylinder 6 is elastically and slidably provided with a positioning pressure rod 22 through a first spring 9, and the positioning pressure rod 22 and the connecting cylinder 6 are coaxially arranged; the lower end of the positioning compression bar 22 is fixedly provided with a bottom template 8; a blocking edge 22-1 is arranged in the middle of the positioning compression bar 22, and the blocking edge 22-1 and the inner wall of the connecting cylinder 6 are arranged in a sealing sliding manner; a limiting edge 6-1 is arranged in the middle of the connecting cylinder 6, and the limiting edge 6-1 is in sealing sliding connection with the outer wall of the positioning compression rod 22; the limiting edge 6-1, the blocking edge 22-1, the positioning compression bar 22 and the connecting cylinder 6 form a hydraulic cavity 26 together; a through groove 22-2 is formed in the positioning compression bar 22 above the edge; an annular communication chamber 22-3 is arranged in the corresponding positioning compression bar 22 at the upper end of the through groove 22-2 (the annular communication chamber 22-3 has the function of ensuring that the hydraulic forces born by the two telescopic rods 11 are completely synchronous and equal), and the two telescopic rods 11 are symmetrically arranged outside the annular communication chamber 22-3; the truss 10 is fixedly arranged at the upper end of the positioning compression bar 22;
the vehicle body 3 comprises a bottom plate 3-2 and wing plates 3-1 which are required to be symmetrically and fixedly arranged on two sides of the bottom plate 3-2; two groups of completely symmetrical positioning assemblies are fixedly arranged at both ends of the truss 10 and both ends of the top beam 4 together; for positioning the relative positions of the bottom plate 3-2 and the wing plate 3-1; the middle part of the wing plate 3-1 is provided with a b column 3-3;
the positioning assembly comprises symmetrically fixed corrugated pipes 7, fork seats 14 are fixedly arranged at the lower ends of the two corrugated pipes 7, and the two fork seats 14 are fixedly connected through a connecting piece; the middle part of each fork seat 14 is symmetrically and elastically provided with a pre-clamping piece 17 in a sliding manner, each pre-clamping piece 17 is provided with a guiding wedge surface 17-1, and the distance between the guiding wedge surfaces 17-1 on the two pre-clamping pieces 17 on the same fork seat 14 in a free state is smaller than the thickness of the wing plate 3-1; the lower ends of the same side of the two fork seats 14 are respectively provided with a rotating rod 16 in a co-rotation way through torsion springs, the outer sides of the two ends of the rotating rod 16 are provided with positioning plates 21 through elastic mounting seats 20, and the two positioning plates 21 are oppositely arranged; a driving rod 19 and a triggering rod 18 are also radially and fixedly arranged at the middle part of the rotating rod 16, and an included angle exists between the triggering rod 18 and the driving rod 19;
the positioning assembly further comprises a mounting plate 13 arranged at the end part of the truss 10, wherein the mounting plate 13 is connected with the truss 10 through an adjusting part 12, and the adjusting part 12 is used for adjusting the distance between the mounting plate 13 and the axis of the connecting cylinder 6; the mounting plate 13 is rotatably provided with a synchronous gear 13-2, synchronous racks 13-1 which are symmetrical relative to the axis of the synchronous gear 13-2 are meshed on the synchronous gear 13-2 (cooperation between the synchronous gear 13-2 and the synchronous racks 13-1 can ensure that the positioning plate 21 and the second template 23 can simultaneously position the wing plate 3-1), and the outer side ends of the two synchronous racks 13-1 relative to the synchronous gear 13-2 are fixedly provided with a driving plate 15 through the mounting plate 13; the driving plate 15 is provided with a second template 23; the outer contours of the two second templates 23 can be attached to the b-pillars 3-3, and one side, close to the axis of the connecting cylinder 6, of the driving plate 15 is connected with the contact plate 24 through the second spring 25 (the second spring 25 mainly has a buffering function and prevents the wing plate 3-1 from being extruded and deformed due to excessive force of the driving piece 5); the distance between the two driving plates 15 is larger than the distance between the outer sides of the two triggering rods 18, so that the two triggering rods 18 can be driven to rotate in opposite directions through the driving plates 15;
the elastic piece 11-1 is arranged inside the telescopic rod 11, the inside of the telescopic rod 11 is communicated with the annular communication chamber 22-3, and the touch plate 24 is positioned on the telescopic path of the telescopic rod 11.
Working principle: as shown in fig. 1: firstly, placing a bottom plate 3-2 of a vehicle body 3 on the base 1, and positioning by a positioning column 2 to prevent the bottom plate 3-2 from sliding and influencing the precision in the process of positioning the wing plate 3-1; then, the two wing plates 3-1 are sequentially moved to the mounting position of the bottom plate 3-2, and then the fork seat 14 is pulled downwards to extend the corrugated pipe 7 (the damping type corrugated pipe 7 has the property of stopping immediately after pulling, positioning can be completed without external fixing pieces, the means is simple and can be operated by a single person), the pre-clamping pieces 17 on the fork seat 14 clamp the two sides of the wing plates 3-1 to complete the pre-positioning process (the pre-positioning function is to prevent the wing plates 3-1 from falling down), in this way, after the two wing plates 3-1 are fixed, reliable positioning is performed: the reliable positioning process is (for example, one side of the positioning process):
opening the driving piece 5 to enable the driving piece 5 to drive the connecting cylinder 6 to move downwards: in the downward movement process of the driving piece 5, as the first spring 9 is arranged between the connecting cylinder 6 and the positioning pressure rod 22, in the initial stage, the connecting cylinder 6 and the positioning pressure rod 22 synchronously move downward, when the bottom template 8 at the lower end of the positioning pressure rod 22 contacts with the bottom plate 3-2, the bottom template 8 and the positioning pressure rod 22 are limited by the bottom plate 3-2 (through the design of the size, when the bottom template 8 is limited by the bottom plate 3-2, the driving plate 15 is positioned on the side surface of the trigger rod 18, and the second template 23 is positioned on the side edge of the b column 3-3), so that the movement is stopped; the connecting cylinder 6 is driven by the driving member 5 to move downwards continuously, so that the connecting and positioning compression rod 22 generates relative displacement (the first spring 9 is compressed at the moment), as shown in fig. 6: when the positioning compression bar 22 and the connecting cylinder 6 are relatively displaced: the distance between the limit edge 6-1 and the baffle edge 22-1 is reduced, the volume of the hydraulic cavity 26 is further reduced, so that the hydraulic fluid in the hydraulic cavity 26 is extruded to the annular communication chamber 22-3 through the through groove 22-2, and the hydraulic extrusion telescopic rod 11 is further extended (when the elastic piece 11-1 is stretched, and when the driving piece 5 is contracted, the elastic piece 11-1 drives the telescopic rod 11 to reset); as shown in fig. 4: the extension of the telescopic rod 11 will press the touch plate 24, so that the driving plate 15 is pressed by the second spring 25 to move transversely (note that, during the whole movement of the telescopic rod 11, since the positioning compression rod 22 is stationary and the telescopic rod 11 is arranged on the positioning compression rod 22, the telescopic rod 11 is completely and transversely telescopic in the telescopic process), the driving plate 15 contacted with the second spring 25 drives the other driving plate 15 to move towards each other through the synchronous gear 13-2 and the synchronous rack 13-1, thereby achieving the purpose of clamping the b-pillar 3-3 by the two second templates 23 (the columnar appearance characteristics of the b-pillar 3-3 are obvious and are easy to be reliably positioned).
At the same time, the following steps are carried out: the lower ends of the driving plates 15 at both sides simultaneously press two triggering rods 18 (shown in fig. 4) fixed on the rotating rod 16 to rotate towards the wing plate 3-1, and further the driving rods 19 rotating inwards drive the positioning plates 21 to approach each other, so that the purpose of clamping the wing plate 3-1 to prevent welding deformation or welding deviation caused by inaccurate positioning is achieved (the outer contours of the two driving plates 15 can be designed according to the outer contour of the vehicle body 3).
When welding (splicing) is finished, the whole device can move reversibly, so that only the driving piece 5 is required to reset, and all parts can do reset movement (the movement process is completely opposite to the clamping process and is not repeated).
The invention has the beneficial effects that: firstly, the method of reliable positioning and then splicing is adopted, so that the internal stress of the vehicle body 3 cannot be received in the splicing process. According to the invention, the wing plate 3-1 can be pre-positioned by single operation through the pre-clamping piece, and the large-area multi-position positioning and clamping of the wing plate 3-1 can be realized through the vertical movement of the single driving piece 5 pieces, and the positioning means can not influence the welding visual field and operation. The method is simple and reliable in effect, the positioning and welding tasks can be completed by a single person, the labor cost is saved, the welding efficiency is improved, the whole equipment is simple in parts, the processing is simple, and the maintenance cost is low.
Furthermore: according to the invention, the wing plate 3-1 is clamped by the second template 23 and the positioning plate 21 in a surface contact manner, so that the clamping stability can be improved, the wing plate 3-1 in a clamping state is not easy to deform due to the relative vertical arrangement of the second template 23 and the positioning plate 21, and in addition, the transverse length of the positioning plate 21, which is close to a welding part, can be larger, so that the local deformation is not easy to occur during welding between the wing plate 3-1 and the bottom plate 3-2.
As a further technical scheme of the invention, a positioning column 2 is also movably arranged on the base 1 so as to facilitate the positioning of the bottom plate 3-2.
As a further technical scheme of the invention, the bottom template 8 comprises a base plate 8-1, an adjusting plate 8-2 and a first template 8-3; the base plate 8-1 is fixedly arranged on the lower end face of the positioning compression bar 22; the contour of the lower end surface of the first template 8-3 is matched with the contour of the bottom plate 3-2; the base plate 8-1 and the first template 8-3 are connected through an adjusting plate 8-2; the adjusting plate 8-2 is used to adjust the distance between the truss 10 and the bottom plate 3-2. The invention can be used in a wider range.
As a further technical solution of the present invention, the length of the trigger lever 18 is longer than the driving lever 19. Forming a labor-saving lever.
As a further technical scheme of the invention, the outer side of the positioning plate 21 is fixedly provided with a reinforcing rib 21-1, and the driving rod 19 is contacted with the reinforcing rib 21-1. And positioning is more reliable.
As a further technical scheme of the invention, the surfaces of the positioning plate 21, the second template 23 and the first template 8-3, which are contacted with the vehicle body 3, are coated with buffer layers. Scratch of the vehicle body 3 is prevented.
It should be noted that; the vehicle body 3 with the bearing platform suitable for more outlines can be spliced through the replacement of the first template 8-3, the second template 23 and the positioning plate 21.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The bearing platform for the all-aluminum car body assembly comprises a car body, a top beam and a base, wherein the top beam and the base are relatively and fixedly arranged through external connecting pieces; the method is characterized in that: the lower end of the top beam is fixedly provided with a vertically telescopic driving piece, the lower end of the driving piece is fixedly provided with a connecting cylinder, the connecting cylinder is elastically and slidably provided with a positioning pressure rod through a first spring, and the positioning pressure rod and the connecting cylinder are coaxially arranged; the lower end of the positioning compression bar is fixedly provided with a bottom template; a blocking edge is arranged in the middle of the positioning compression bar and is arranged in a sealing sliding manner with the inner wall of the connecting cylinder; a limiting edge is arranged in the middle of the connecting cylinder and is in sealing sliding connection with the outer wall of the positioning compression bar; the limiting edge, the blocking edge, the positioning compression bar and the connecting cylinder form a hydraulic cavity together; a through groove is formed in the positioning compression bar above the blocking edge; an annular communication chamber is arranged in the positioning compression bar corresponding to the upper end of the through groove, and two telescopic rods are symmetrically arranged outside the annular communication chamber; the truss is fixedly arranged at the upper end of the positioning compression bar;
the automobile body comprises a bottom plate and wing plates which are required to be symmetrically and fixedly arranged on two sides of the bottom plate; two groups of completely symmetrical positioning assemblies are fixedly arranged at both ends of the truss and both ends of the top beam together; the positioning device is used for positioning the relative positions of the bottom plate and the wing plate; a b column is arranged in the middle of the wing plate;
the positioning assembly comprises symmetrically fixed corrugated pipes, fork seats are fixedly arranged at the lower ends of the two corrugated pipes, and the two fork seats are fixedly connected through a connecting piece; the middle part of each fork seat is symmetrically and elastically provided with a pre-clamping piece in a sliding manner, each pre-clamping piece is provided with a guide wedge surface, and the distance between the guide wedge surfaces on the two pre-clamping pieces on the same fork seat in a free state is smaller than the thickness of the wing plate; the lower ends of the same side of the two fork seats are provided with a rotating rod through the common rotation of the torsion springs, the outer sides of the two ends of the rotating rod are provided with positioning plates through elastic mounting seats, and the two positioning plates are oppositely arranged; the middle part of the rotating rod is also radially and fixedly provided with a driving rod and a triggering rod, and an included angle exists between the triggering rod and the driving rod;
the positioning assembly further comprises a mounting plate arranged at the end part of the truss, the mounting plate is connected with the truss through an adjusting part, and the adjusting part is used for adjusting the distance between the mounting plate and the axis of the connecting cylinder; the mounting plate is rotatably provided with a synchronous gear, synchronous racks which are symmetrical relative to the axis of the synchronous gear are meshed on the synchronous gear, and driving plates are fixedly arranged on the outer side ends of the two synchronous racks relative to the synchronous gear through the mounting plate; the driving plate is provided with a second template; the outer contours of the two second templates can be attached to the b column, and one side, close to the connecting cylinder axis, of the driving plate is connected with the contact plate through a second spring; the distance between the two driving plates is larger than the distance between the outer sides of the two trigger rods, so that the two trigger rods can be driven to rotate in opposite directions through the driving plates;
the telescopic rod is internally provided with an elastic piece, the telescopic rod is internally communicated with the annular communication chamber, and the touch plate is positioned on a telescopic path of the telescopic rod.
2. The all-aluminum vehicle body split bearing platform according to claim 1, wherein: and the base is also movably provided with a positioning column so as to facilitate the positioning of the bottom plate.
3. The all-aluminum vehicle body split bearing platform according to claim 2, wherein: the bottom template comprises a base plate, an adjusting plate and a first template; the base plate is fixedly arranged on the lower end face of the positioning compression bar; the contour of the lower end face of the first template is matched with the contour of the bottom plate; the base plate is connected with the first template through an adjusting plate; the adjusting plate is used for adjusting the distance between the truss and the bottom plate.
4. The all-aluminum vehicle body split bearing platform according to claim 3, wherein: the length of the trigger rod is longer than that of the driving rod.
5. The all-aluminum vehicle body split bearing platform according to claim 4, wherein: reinforcing ribs are fixedly arranged on the outer sides of the positioning plates, and the driving rods are in contact with the reinforcing ribs.
6. The all-aluminum vehicle body split bearing platform according to claim 5, wherein: the surfaces of the positioning plate, the second template and the first template, which are contacted with the vehicle body, are coated with buffer layers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900688.3A CN115122026B (en) | 2022-07-28 | 2022-07-28 | Bearing platform for all-aluminum car body assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210900688.3A CN115122026B (en) | 2022-07-28 | 2022-07-28 | Bearing platform for all-aluminum car body assembly |
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| CN115122026A CN115122026A (en) | 2022-09-30 |
| CN115122026B true CN115122026B (en) | 2023-07-11 |
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| JPH10236352A (en) * | 1996-12-25 | 1998-09-08 | Nissan Motor Co Ltd | Automobile body side assembling method and device |
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| CN103538639A (en) * | 2013-11-01 | 2014-01-29 | 上汽通用五菱汽车股份有限公司 | Rear side outer plate welding assembly |
| CN208879976U (en) * | 2018-09-25 | 2019-05-21 | 长春捷柯汽车工艺装备有限公司 | A kind of positioning transport platform that the total welding of advanced development vehicle connects |
| CN216242897U (en) * | 2021-11-15 | 2022-04-08 | 河南天铁环保科技有限公司 | Corrosion-resistant plastic corrugated pipe convenient to splice |
| WO2022077623A1 (en) * | 2020-10-16 | 2022-04-21 | 苏州龙骐自动化科技有限公司 | Welding robot flexible to use |
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2022
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10236352A (en) * | 1996-12-25 | 1998-09-08 | Nissan Motor Co Ltd | Automobile body side assembling method and device |
| CN102672389A (en) * | 2012-04-25 | 2012-09-19 | 上海晓奥享荣汽车工业装备有限公司 | Four-sided revolving body device of automobile welding clamp |
| CN103538639A (en) * | 2013-11-01 | 2014-01-29 | 上汽通用五菱汽车股份有限公司 | Rear side outer plate welding assembly |
| CN208879976U (en) * | 2018-09-25 | 2019-05-21 | 长春捷柯汽车工艺装备有限公司 | A kind of positioning transport platform that the total welding of advanced development vehicle connects |
| WO2022077623A1 (en) * | 2020-10-16 | 2022-04-21 | 苏州龙骐自动化科技有限公司 | Welding robot flexible to use |
| CN216242897U (en) * | 2021-11-15 | 2022-04-08 | 河南天铁环保科技有限公司 | Corrosion-resistant plastic corrugated pipe convenient to splice |
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| CN115122026A (en) | 2022-09-30 |
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