Three-dimensional curved surface gluing positioning tool for electric vehicle frame

Abstract

The utility model relates to electric motor car frame cementation technical field especially is a kind of electric motor car frame three-dimensional curved surface cementation positioning tool, including base, first positioning assembly, second positioning assembly and displacement component, in the utility model, through the first locating rod, second locating rod, multistage electric telescopic rod and electric sucking disc being set, the device can carry out preliminary limiting to the frame spare part to be cemented by two first locating rods, frame spare part is fixed by adsorption by multiple electric sucking discs, posture correction is carried out to frame spare part by multiple second locating rods, two frame spare parts are made to approach each other by multistage electric telescopic rod, the device can accurately control the posture of frame spare part and moving distance, when cementing the frame spare part with three-dimensional curved surface of cementing surface, accurate positioning can also be carried out, the device can effectively reduce the defective rate of electric motor car frame cementation, and then reduce the production cost of electric motor car frame.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frame bonding technology, specifically a three-dimensional curved surface bonding positioning tool for electric vehicle frames. Background Technology

[0002] Due to its advantages in efficiency, cost, and management, adhesive bonding technology has gradually replaced traditional welding processes in electric vehicle manufacturing. Adhesive bonding involves bonding the mating surfaces of two frame components together using an adhesive that has been cleaned, polished, and coated with adhesive. Precise three-dimensional data of the frame is obtained through 3D scanning technology (such as CASAIM's 3D scanning equipment). The frame components are clamped and fixed using a frame adhesive bonding positioning fixture. The displacement of the frame adhesive bonding positioning fixture is controlled by a computer program, which allows the two frame components to be joined together to complete the adhesive bonding.

[0003] The clamping mechanisms of some existing frame bonding and positioning fixtures are relatively simple. When clamping and fixing some irregular frame parts, it is difficult to accurately control the placement posture and movement distance of irregular frame parts. If the bonding surface of two frame parts is also a three-dimensional curved surface, the positioning may be inaccurate. This will cause the bonded electric vehicle frame to become a defective product, which will greatly increase the production cost of the electric vehicle frame. Therefore, in order to solve the above problems, a three-dimensional curved surface bonding and positioning fixture for electric vehicle frames is proposed. Summary of the Invention

[0004] The purpose of this utility model is to provide a three-dimensional curved surface adhesive bonding and positioning fixture for electric vehicle frames, so as to solve the problem that the clamping mechanism of some existing frame adhesive bonding and positioning fixtures is difficult to accurately control the placement posture and movement distance of irregular frame parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A three-dimensional curved surface adhesive bonding positioning fixture for an electric vehicle frame includes a base, a first positioning assembly, a second positioning assembly, and a displacement assembly. The upper side of the base has two first positioning assemblies symmetrically distributed front to back. Each first positioning assembly includes a pair of first hydraulic rods fixedly connected to the upper end face of the base. The piston rod ends of the first hydraulic rods are fixedly connected to first sliders slidably connected to the base. The upper ends of the first sliders are fixedly connected to first magnetically coupled cylinder assemblies. A first limiting block is fixedly connected to the opposing sides of every two symmetrically distributed first magnetically coupled cylinder assemblies. A first positioning rod is provided between every two symmetrically distributed first limiting blocks. Multiple second positioning assemblies are provided on both the front and rear sides of the first positioning assemblies. Each second positioning assembly includes a pair of second hydraulic rods fixedly connected to the upper end face of the base. The piston rod end of the second hydraulic rod is fixedly connected to a second slider that is slidably connected to the base. The upper end of the second slider is fixedly connected to a second magnetically coupled cylinder assembly. A second limiting block is fixedly connected to the opposing side of every two symmetrically distributed second magnetically coupled cylinder assemblies. A second positioning rod is provided between every two symmetrically distributed second limiting blocks. Two symmetrically distributed displacement assemblies are provided between the two first positioning assemblies. Each displacement assembly includes a multi-stage electric telescopic rod fixedly connected to the upper end face of the base. The piston rod end of the multi-stage electric telescopic rod is fixedly connected to a third slider that is slidably connected to the base. A mounting plate is fixedly connected to the upper side of the third slider. A third hydraulic rod is fixedly connected to the mounting hole of the mounting plate. An electric suction cup is fixedly connected to the piston rod end of the third hydraulic rod.

[0006] Preferably, both the first hydraulic rod and the second hydraulic rod are horizontally distributed in the front-to-back direction, the piston rods of the first hydraulic rods are close to the center point of the base, and the piston rods of the second hydraulic rods are far away from the center point of the base.

[0007] Preferably, the pistons of every two left-right symmetrically distributed first magnetically coupled cylinder assemblies are at the same height, the pistons of every two left-right symmetrically distributed second magnetically coupled cylinder assemblies are at the same height, and the first positioning rod and the second positioning rod are both horizontally distributed.

[0008] Preferably, both the first positioning rod and the second positioning rod are composed of a cylindrical rod and rectangular blocks fixedly connected to its two ends. The rectangular blocks of the first positioning rod are inserted into the first limiting block, and the rectangular blocks of the second positioning rod are inserted into the second limiting block.

[0009] Preferably, the multi-stage electric telescopic rod and the third hydraulic rod are both horizontally distributed in the left-right direction, and the piston rods of the multi-stage electric telescopic rod and the third hydraulic rod are both close to the center point of the base.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by using a first positioning rod, a second positioning rod, a multi-stage electric telescopic rod, and an electric suction cup, the device can initially limit the position of the frame components to be glued using two first positioning rods. Multiple electric suction cups, which can move left and right, then adhere and fix the frame components. Multiple second positioning rods correct the posture of the frame components, and the multi-stage electric telescopic rods bring the two frame components closer together, allowing them to accurately align and complete the gluing. This device can accurately control the placement posture and movement distance of the frame components. It can also accurately position the components when gluing frame components with a three-dimensional curved surface. This device can effectively reduce the defect rate of electric vehicle frame gluing, thereby reducing the production cost of electric vehicle frames. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first positioning component of this utility model; Figure 3 This is a schematic diagram of the structure of the second positioning component of this utility model; Figure 4 This is a schematic diagram of the displacement component structure of this utility model.

[0012] In the diagram: 1. Base; 2. First positioning component; 21. First hydraulic rod; 22. First slider; 23. First magnetically coupled cylinder assembly; 24. First limiting block; 25. First positioning rod; 3. Second positioning component; 31. Second hydraulic rod; 32. Second slider; 33. Second magnetically coupled cylinder assembly; 34. Second limiting block; 35. Second positioning rod; 4. Displacement component; 41. Multi-stage electric telescopic rod; 42. Third slider; 43. Mounting plate; 44. Third hydraulic rod; 45. Electric suction cup. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0015] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: A three-dimensional curved surface adhesive bonding positioning fixture for an electric vehicle frame includes a base 1, a first positioning component 2, a second positioning component 3, and a displacement component 4. Two first positioning components 2 are symmetrically distributed front-to-back on the upper side of the base 1. Each first positioning component 2 includes a pair of first hydraulic rods 21 fixedly connected to the upper end face of the base 1. The piston rod end of each first hydraulic rod 21 is fixedly connected to a first slider 22 slidably connected to the base 1. The upper end of each first slider 22 is fixedly connected to a first magnetically coupled cylinder assembly 23. A first limiting block 24 is fixedly connected to the opposing sides of every two symmetrically distributed first magnetically coupled cylinder assemblies 23. A first positioning rod 25 is provided between every two symmetrically distributed first limiting blocks 24. Multiple second positioning components 3 are provided on both the front and rear sides of the first positioning components 2. Each second positioning component 3 includes a pair of second hydraulic rods 31 fixedly connected to the upper end face of the base 1. The piston rod end of the hydraulic rod 31 is fixedly connected to a second slider 32 that is slidably connected to the base 1. The upper end of the second slider 32 is fixedly connected to a second magnetically coupled cylinder assembly 33. A second limiting block 34 is fixedly connected to the opposing side of every two symmetrically distributed second magnetically coupled cylinder assemblies 33. A second positioning rod 35 is provided between every two symmetrically distributed second limiting blocks 34. Two symmetrically distributed displacement assemblies 4 are provided between the two first positioning assemblies 2. Each displacement assembly 4 includes a multi-stage electric telescopic rod 41 that is fixedly connected to the upper end face of the base 1. The piston rod end of the multi-stage electric telescopic rod 41 is fixedly connected to a third slider 42 that is slidably connected to the base 1. A mounting plate 43 is fixedly connected to the upper side of the third slider 42. A third hydraulic rod 44 is fixedly connected in the mounting hole of the mounting plate 43. An electric suction cup 45 is fixedly connected to the piston rod end of the third hydraulic rod 44.

[0017] Both the first hydraulic rod 21 and the second hydraulic rod 31 are horizontally distributed in the front-to-back direction. The piston rods of the first hydraulic rod 21 are close to the center point of the base 1, while the piston rods of the second hydraulic rod 31 are far from the center point of the base 1. The first hydraulic rod 21 can drive the first slider 22 to slide, and the second hydraulic rod 31 can drive the second slider 32 to slide. The pistons of every two symmetrically distributed first magnetically coupled cylinder assemblies 23 and every two symmetrically distributed second magnetically coupled cylinder assemblies 33 are at the same height. The first positioning rod 25 and the second positioning rod 35 are horizontally distributed. The height of the first limiting block 24 can be adjusted by the first magnetically coupled cylinder assembly 23, thereby adjusting the position and height of the first positioning rod 25. The position of the second limiting block 34 can be adjusted by the second magnetically coupled cylinder assembly 33. The height is adjusted to control the position and height of the second positioning rod 35. Both the first positioning rod 25 and the second positioning rod 35 are composed of cylindrical rods and rectangular blocks fixedly connected to their two ends. The rectangular blocks of the first positioning rod 25 are inserted into the first limiting block 24, and the rectangular blocks of the second positioning rod 35 are inserted into the second limiting block 34. The two first positioning rods 25 can initially limit the frame components to be glued, and the frame components can be corrected in posture by multiple second positioning rods 35. The multi-stage electric telescopic rod 41 and the third hydraulic rod 44 are horizontally distributed in the left and right directions. The piston rods of the multi-stage electric telescopic rod 41 and the third hydraulic rod 44 are close to the center point of the base 1. The multi-stage electric telescopic rod 41 can bring the two third sliders 42 closer to each other, thereby driving the two mounting plates 43 to move closer to each other, so that the two frame components can be docked.

[0018] Workflow: This device needs to be used in conjunction with a 3D scanning device and a robotic arm. Before use, the base 1 should be installed in a suitable position and the device should be powered on. The device is equipped with an external controller, which is electrically connected to the first hydraulic rod 21, the first magnetic coupling cylinder assembly 23, the second hydraulic rod 31, the second magnetic coupling cylinder assembly 33, the multi-stage electric telescopic rod 41, the third hydraulic rod 44, and the electric suction cup 45. The operating status of the first hydraulic rod 21, the first magnetic coupling cylinder assembly 23, the second hydraulic rod 31, the second magnetic coupling cylinder assembly 33, the multi-stage electric telescopic rod 41, the third hydraulic rod 44, and the electric suction cup 45 can be adjusted by manually operating the external controller. All of the above are existing technologies.When using this device, the operator first uses a 3D scanning device to determine the shapes of the two frame components to be bonded. Then, an external controller synchronizes the extension and retraction of two pairs of first hydraulic rods 21 and adjusts the piston positions of two pairs of first magnetically coupled cylinder assemblies 23. The first hydraulic rods 21 drive the first slider 22 to slide, and the first magnetically coupled cylinder assemblies 23 adjust the height of the first limit block 24, thereby adjusting the position and height of the first positioning rod 25. Subsequently, a robotic arm vertically places the cleaned, polished, and adhesive-coated frame components between the two first positioning rods 25, so that the two frame components are bonded together. The two frame components are placed side-by-side, bringing their adhesive surfaces close together. Simultaneously, an external controller extends multiple third hydraulic rods 44 to different lengths and activates electric suction cups 45. The external controller works in conjunction with a 3D scanning device to precisely adjust the extension lengths of the third hydraulic rods 44. These rods move the electric suction cups 45 left and right, bringing them into contact with the sides of the frame components. The electric suction cups 45 then firmly hold the components in place. The external controller then... The second hydraulic rod 31 is extended and retracted, and the piston positions of multiple pairs of second magnetically coupled cylinder assemblies 33 are adjusted. The second hydraulic rod 31 drives the second slider 32 to slide, and the second magnetically coupled cylinder assemblies 33 adjust the height of the second limit block 34, thereby adjusting the position and height of the second positioning rod 35. The external controller can cooperate with the 3D scanning device to move the second positioning rod 35 to the edge of the frame component. Multiple second positioning rods 35 limit the frame component. At this time, the external controller can briefly stop the electric suction cup 45 and then re-adhere the frame component, simultaneously... The second positioning rod 35, located at the edge of the frame component, can be quickly adjusted to clamp the frame component. The second positioning rod 35 can be used to accurately correct the frame component, so that the adhesive surfaces of the two frame components are accurately aligned. Then, the operator can use an external controller to extend the two multi-stage electric telescopic rods 41 simultaneously. The multi-stage electric telescopic rods 41 can bring the two third sliders 42 closer together, which in turn can drive the two mounting plates 43 closer together. This allows the two frame components to approach each other under the limit of the first positioning rod 25 and the second positioning rod 35, so that the two frame components can be accurately joined together, thereby completing the adhesive bonding.This device uses two first positioning rods 25 to initially limit the position of the frame components to be bonded. Multiple electrically movable suction cups 45 then adhere and fix the frame components. Multiple second positioning rods 35 correct the posture of the frame components, and multi-stage electrically telescopic rods 41 bring the two frame components closer together, allowing for accurate alignment and bonding. This device can accurately control the placement and movement distance of the frame components. It can also accurately position components with three-dimensional curved bonding surfaces. This device can effectively reduce the defect rate of electric vehicle frame bonding, thereby reducing the production cost of electric vehicle frames.

[0019] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional curved surface adhesive bonding positioning fixture for an electric vehicle frame, comprising a base (1), a first positioning component (2), a second positioning component (3), and a displacement component (4), characterized in that: The upper side of the base (1) is provided with two first positioning components (2) symmetrically distributed front and back. Each first positioning component (2) includes a pair of first hydraulic rods (21) fixedly connected to the upper end face of the base (1). The piston rod end of each first hydraulic rod (21) is fixedly connected to a first slider (22) slidably connected to the base (1). The upper end of each first slider (22) is fixedly connected to a first magnetic coupling cylinder assembly (23). Each pair of first magnetic coupling cylinder assemblies (23) symmetrically distributed left and right are fixedly connected to a first limiting block (24) facing each other. Each pair of first limiting blocks (24) symmetrically distributed left and right are provided with a first positioning rod (25). The front and rear sides of the first positioning components (2) are provided with multiple second positioning components (3). Each second positioning component (3) includes a pair of second hydraulic rods (31) fixedly connected to the upper end face of the base (1). The piston rod end of each second hydraulic rod (31) is fixedly connected to a first sliding block (22) slidably connected to the base (1). The second slider (32) is connected, and the upper end of the second slider (32) is fixedly connected to the second magnetic coupling cylinder assembly (33). The opposing sides of each pair of symmetrically distributed second magnetic coupling cylinder assemblies (33) are fixedly connected to the second limiting block (34). A second positioning rod (35) is provided between each pair of symmetrically distributed second limiting blocks (34). Two symmetrically distributed displacement assemblies (4) are provided between the two first positioning assemblies (2). Each displacement assembly (4) includes a multi-stage electric telescopic rod (41) fixedly connected to the upper end face of the base (1). The piston rod end of the multi-stage electric telescopic rod (41) is fixedly connected to the third slider (42) which is slidably connected to the base (1). The upper side of the third slider (42) is fixedly connected to the mounting plate (43). The mounting hole of the mounting plate (43) is fixedly connected to the third hydraulic rod (44). The piston rod end of the third hydraulic rod (44) is fixedly connected to the electric suction cup (45).

2. The three-dimensional curved surface adhesive bonding and positioning fixture for an electric vehicle frame according to claim 1, characterized in that: The first hydraulic rod (21) and the second hydraulic rod (31) are both horizontally distributed in the front-to-back direction. The piston rod of the first hydraulic rod (21) is close to the center point of the base (1), and the piston rod of the second hydraulic rod (31) is far away from the center point of the base (1).

3. The three-dimensional curved surface adhesive bonding positioning fixture for electric vehicle frames according to claim 1, characterized in that: The pistons of every two left-right symmetrically distributed first magnetically coupled cylinder assemblies (23) are at the same height, and the pistons of every two left-right symmetrically distributed second magnetically coupled cylinder assemblies (33) are at the same height. The first positioning rod (25) and the second positioning rod (35) are both horizontally distributed.

4. The three-dimensional curved surface adhesive bonding and positioning fixture for an electric vehicle frame according to claim 1, characterized in that: The first positioning rod (25) and the second positioning rod (35) are both composed of a cylindrical rod and rectangular blocks fixedly connected to its two ends. The rectangular blocks of the first positioning rod (25) are all inserted into the first limiting block (24), and the rectangular blocks of the second positioning rod (35) are all inserted into the second limiting block (34).

5. The three-dimensional curved surface adhesive bonding and positioning fixture for an electric vehicle frame according to claim 1, characterized in that: The multi-stage electric telescopic rod (41) and the third hydraulic rod (44) are both horizontally distributed in the left and right directions, and the piston rods of the multi-stage electric telescopic rod (41) and the third hydraulic rod (44) are both close to the center point of the base (1).

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