Car body side wall clamping device

Abstract

The invention provides a vehicle body side wall clamping device which comprises a fixing frame, a gripper upper fixing mechanism, a gripper lower fixing mechanism and a gripper mechanism, the gripper mechanism comprises a gripper body, an upper gripper end connecting assembly and a lower gripper end connecting assembly, and the gripper upper fixing mechanism comprises a fixing assembly, a first Y-direction fixing block and a first clamping assembly. The first Y-direction fixing block is connected with the upper gripper end connecting assembly, the first clamping assembly is used for enabling the first Y-direction fixing block and the upper gripper end connecting assembly to be clamped and fixed, and the gripper lower fixing mechanism comprises a fixing table, a second Y-direction fixing block, a Z-direction fixing block and a second clamping assembly, the second Y-direction fixing block and the Z-direction fixing block are both connected with the lower gripper end connecting assembly, the second clamping assembly is used for enabling the second Y-direction fixing block and the Z-direction fixing block to be clamped and fixed with the lower gripper end connecting assembly, and the problem that an existing gripper end positioning pin is seriously stressed, and deformation of the positioning pin is likely to be caused is solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a vehicle body side panel clamping device. Background Art

[0002] In the design of the BIW assembly fixture for welding, the traditional manual welding fixture can no longer meet the needs of today's modern welding production lines. The development of BIW assembly fixtures has gradually changed from manual operation to robot operation. At present, the BIW assembly of the automated workstation usually uses a robot to grab the parts through a precision positioning gripper, and accurately assemble the gripper parts to the fixed frame to achieve accurate placement of the parts in space. After the parts are assembled, the robot welds the parts to form a BIW.

[0003] The gripper positioning and clamping device in the prior art needs to position and clamp parts, and there are many positioning and clamping structures. The weight of the gripper is usually measured in tons, especially the side panel assembly, which is one of the largest assemblies in the body-in-white, and its gripper is extremely heavy. To solve this problem, the existing gripper usually adopts a gripper pulley support to prevent the gripper from falling. However, during long-term use, the gripper pulley support will still cause a slight drop due to the excessive weight of the gripper, which will cause the gripper to fall. When the gripper falls, the gripper end positioning pin and the fixing frame end positioning hole are squeezed, and the overall gravity of the gripper will fall on the gripper end positioning pin, which will eventually cause the following problems: 1. Because the gripper end positioning pin is severely stressed, it is easy to cause the positioning pin to deform, and then cause the parts to fall, seriously affecting the accuracy of the body-in-white; 2. Because the gripper end positioning pin is severely stressed, the positioning pin is very easy to break, resulting in production line stoppage caused by the gripper falling, seriously affecting equipment safety and production efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a vehicle body side panel clamping device, aiming to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0006] A vehicle body side panel clamping device, comprising a fixing frame, a gripper upper fixing mechanism arranged on the fixing frame, a gripper lower fixing mechanism arranged on the ground and arranged opposite to the gripper upper fixing mechanism, and a gripper mechanism fixedly connected to the gripper upper fixing mechanism and the gripper lower fixing mechanism, the gripper mechanism comprising a gripper body, an upper gripper end connecting component arranged above the gripper body, and a lower gripper end connecting component arranged below the gripper body, the gripper upper fixing mechanism comprising a fixing component fixedly connected to the fixing frame, a first Y-direction fixing block and a A first clamping assembly, the first Y-axis fixed block is connected to the upper gripper end connecting assembly, the first clamping assembly is used to clamp and fix the first Y-axis fixed block and the upper gripper end connecting assembly, the gripper lower fixing mechanism includes a fixed platform placed on the ground, and a second Y-axis fixed block, a Z-axis fixed block and a second clamping assembly arranged on the fixed platform, the second Y-axis fixed block and the Z-axis fixed block are both connected to the lower gripper end connecting assembly, and the second clamping assembly is used to clamp and fix the second Y-axis fixed block and the Z-axis fixed block to the lower gripper end connecting assembly.

[0007] According to one aspect of the above technical solution, the upper gripper end connection assembly includes a first Y-direction positioning block and a positioning pin arranged on the first Y-direction positioning block, and the first Y-direction positioning block is connected to the first Y-direction fixing block through the positioning pin.

[0008] According to one aspect of the above technical solution, the fixing assembly includes a first positioning connection block and a second positioning connection block fixedly connected to the fixing frame, and the first Y-direction fixing block is fixedly connected to the first positioning connection block.

[0009] According to one aspect of the above technical solution, the first clamping assembly includes a first cylinder fixedly connected to the second positioning and connecting block, a protective shell connected to the first cylinder, a first rotating shaft rotatably arranged in the protective shell, a rotating frame fixedly connected to the first rotating shaft, a first clamping block arranged on the rotating frame close to the first Y-direction fixed block, and a linkage structure arranged in the protective shell, and the first cylinder is used to drive the first rotating shaft to rotate through the linkage structure.

[0010] According to one aspect of the above technical solution, the lower gripper end connection assembly includes an integrally arranged second Y-direction positioning block and a Z-direction positioning block, the second Y-direction positioning block is connected to the second Y-direction fixed block, and the Z-direction positioning block is connected to the Z-direction fixed block.

[0011] According to one aspect of the above technical solution, the second Y-direction positioning block and the Z-direction positioning block are further provided with a second pressing block which is arranged obliquely.

[0012] According to one aspect of the above technical solution, the second clamping assembly includes a second rotating shaft arranged on the fixed platform, a clamping arm rotatably connected to the second rotating shaft, and a second cylinder rotatably arranged on the fixed platform, the second cylinder is rotatably connected to the clamping arm, and the free end of the clamping arm is used to squeeze the second clamping block.

[0013] According to one aspect of the above technical solution, a pressing wheel is rotatably provided at one end of the pressing arm close to the second pressing block, and the pressing wheel is used to squeeze the second pressing block.

[0014] According to one aspect of the above technical solution, the fixed table is also provided with a Z-direction guide wheel and two X-direction guide wheels arranged opposite to each other, and edges that interfere with the X-direction guide wheel and the Z-direction guide wheel are provided below the second Y-direction positioning block, the Z-direction positioning block and the second clamping block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting an upper fixing mechanism of the gripper on the fixing frame and a lower fixing mechanism of the gripper on the ground, when the gripper mechanism needs to be fixed, the first Y-direction fixing block can be connected to the upper gripper end connecting assembly, and then the two can be clamped by the first clamping assembly, thereby realizing the fixation of the upper part of the gripper body, and because it is fixed in the Y direction, the connection node between the first Y-direction fixing block and the upper gripper end connecting assembly will not be affected by the Z-direction gravity of the gripper, effectively preventing the impact of the gripper falling during long-term use; then the second Y-direction fixing block and the Z-direction fixing block can also be connected to the lower gripper end connecting assembly, and then the three can be clamped by the second clamping assembly, thereby realizing the fixation of the lower part of the gripper body, and all the Z-direction gravity of the gripper body is applied to the second Y-direction fixing block and the load-bearing platform with stronger load-bearing capacity, thereby ensuring the stability of the gripper body.

[0017] The present invention solves the quality problem that during the long-term use of the existing positioning clamping device, the positioning pin at the gripper end is seriously stressed, which easily leads to deformation of the positioning pin and further causes the parts to fall down, thereby improving the stability and accuracy of the gripper body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a vehicle body side panel clamping device in a first embodiment of the present invention;

[0019] Figure 2 for Figure 1 Structural schematic diagram of the upper fixing mechanism of the middle gripper and the lower fixing mechanism of the gripper;

[0020] Figure 3 for Figure 2 Structural explosion diagram of the upper fixing mechanism of the middle gripper;

[0021] Figure 4 for Figure 2 Schematic diagram of the structure of the upper fixing mechanism of the middle gripper when the rotating frame is opened;

[0022] Figure 5 for Figure 2 Exploded view of the structure of the fixing mechanism at the lower part of the middle gripper;

[0023] Description of main component symbols:

[0024]

[0025]

[0026] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figures 1 to 5, shown is a vehicle body side panel clamping device in the first embodiment of the present invention, including a fixing frame 40, a gripper upper fixing mechanism 10 arranged on the fixing frame 40, a gripper lower fixing mechanism 20 arranged on the ground and arranged opposite to the gripper upper fixing mechanism 10, and a gripper mechanism fixedly connected to the gripper upper fixing mechanism 10 and the gripper lower fixing mechanism 20, the gripper mechanism including a gripper body 30, an upper gripper end connecting component 31 arranged above the gripper body 30, and a lower gripper end connecting component 32 arranged below the gripper body 30, the gripper upper fixing mechanism 10 including a fixing component 12 fixedly connected to the fixing frame 40, a first Y-direction fixing block 12 arranged on the fixing component 12 3 and a first clamping assembly 11, the first Y-axis fixed block 123 is connected to the upper gripper end connecting assembly 31, the first clamping assembly 11 is used to clamp and fix the first Y-axis fixed block 123 and the upper gripper end connecting assembly 31, the gripper lower fixing mechanism 20 includes a fixing table 21 placed on the ground, and a second Y-axis fixed block 211, a Z-axis fixed block 212 and a second clamping assembly 22 arranged on the fixing table 21, the second Y-axis fixed block 211 and the Z-axis fixed block 212 are both connected to the lower gripper end connecting assembly 32, and the second clamping assembly 22 is used to clamp and fix the second Y-axis fixed block 211 and the Z-axis fixed block 212 to the lower gripper end connecting assembly 32.

[0031] It can be understood that the present invention sets an upper gripper fixing mechanism 10 on the fixing frame 40 and a lower gripper fixing mechanism 20 on the ground. When the gripper mechanism is to be fixed, the first Y-axis fixing block 123 can be connected to the upper gripper end connecting component 31, and then the two are clamped by the first clamping component 11, which realizes the fixation of the upper part of the gripper body 30. Since it is fixed in the Y direction, the connection node between the first Y-axis fixing block 123 and the upper gripper end connecting component 31 will not be affected by the Z-axis gravity of the gripper, which effectively prevents the influence of the gripper falling during long-term use; then the second Y-axis fixing block 211 and the Z-axis fixing block 212 can be connected to the lower gripper end connecting component 32, and then the three are clamped by the second clamping component 22, which realizes the fixation of the lower part of the gripper body 30, and the Z-axis gravity of the gripper body 30 is fully applied to the second Y-axis fixing block 211 and the load-bearing platform with stronger load-bearing capacity, thereby ensuring the stability of the gripper body 30.

[0032] The present invention solves the quality problem that during long-term use of the existing positioning clamping device, the positioning pin 312 at the gripper end is severely stressed, which easily causes the positioning pin 312 to deform and then causes the part to fall down, thereby improving the stability and accuracy of the gripper body 30 during use.

[0033] Specifically, in this embodiment, the upper gripper end connection assembly 31 includes a first Y-direction positioning block 311 and a positioning pin 312 provided on the first Y-direction positioning block 311, and the first Y-direction positioning block 311 is connected to the first Y-direction fixing block 123 through the positioning pin 312; the fixing assembly 12 includes a first positioning connection block 121 and a second positioning connection block 122 fixedly connected to the fixing frame 40, and the first Y-direction fixing block 123 is fixedly connected to the first positioning connection block 121; the first clamping The component 11 includes a first cylinder 111 fixedly connected to the second positioning connecting block 122, a protective shell 112 connected to the first cylinder 111, a first rotating shaft 113 rotatably arranged in the protective shell 112, a rotating frame 114 fixedly connected to the first rotating shaft 113, a first clamping block 115 arranged on the rotating frame 114 close to the first Y-direction fixed block 123, and a linkage structure arranged in the protective shell 112, and the first cylinder 111 is used to drive the first rotating shaft 113 to rotate through the linkage structure.

[0034] It can be understood that when fixing the upper part of the gripper body 30, the first Y-axis positioning block 311 on the upper gripper end connecting assembly 31 is fitted with the first Y-axis fixing block 123 on the upper fixing mechanism 10 of the gripper, and then the first Y-axis positioning block 311 and the first Y-axis fixing block 123 are locked and fixed by the positioning pin 312, which completes the preliminary fixation; then the first cylinder 111 is started to extend the protruding end of the first cylinder 111 in the protective shell 112, and the first rotating shaft 113 is rotated through the linkage structure, and then the first clamping block 115 is tightly pressed on the first Y-axis positioning block 311 through the rotating frame 114 to strengthen the fixing effect of the upper part of the gripper. It should be noted that the linkage structure is located inside the protective shell 112, and there are multiple implementation types, such as a gear rack structure. The first cylinder 111 drives the rack to extend, so that the rack drives the first rotating shaft 113 to rotate.

[0035] Furthermore, the lower gripper end connecting assembly 32 includes an integrally arranged second Y-axis positioning block 321 and a Z-axis positioning block 322, the second Y-axis positioning block 321 is connected to the second Y-axis fixed block 211, and the Z-axis positioning block 322 is connected to the Z-axis fixed block 212; the second Y-axis positioning block 321 and the Z-axis positioning block 322 are also provided with a second obliquely arranged clamping block 323; the second clamping assembly 22 includes a second rotating shaft 223 arranged on the fixed table 21, a clamping arm 222 rotatably connected to the second rotating shaft 223, and a second cylinder 221 rotatably arranged on the fixed table 21, the second cylinder 221 is rotatably connected to the clamping arm 222, and the free end of the clamping arm 222 is used to squeeze the second clamping block 323.

[0036] It can be understood that when fixing the lower part of the gripper body 30, the second Y-direction positioning block 321 on the lower gripper end connecting assembly 32 is fitted with the second Y-direction fixing block 211 on the gripper lower fixing mechanism 20, and the Z-direction positioning block 322 on the lower gripper end connecting assembly 32 is fitted with the Z-direction fixing block 212 on the gripper lower fixing mechanism 20, and then the second Y-direction positioning block 321 is locked and fixed with the second Y-direction fixing block 211 by, for example, a bolt structure, so as to And lock and fix the Z-axis positioning block 322 and the Z-axis fixing block 212, which completes the preliminary fixation; then start the second cylinder 221 to extend the protruding end of the second cylinder 221, drive the clamping arm 222 to rotate around the second rotating shaft 223, so that the free end of the clamping arm 222 squeezes the second clamping block 323, thereby realizing the clamping and fixation of the second clamping block 323, the second Y-axis positioning block 321 and the Z-axis positioning block 322, and strengthening the fixing effect of the lower part of the gripper.

[0037] Preferably, a pressing wheel 224 is rotatably provided at one end of the pressing arm 222 close to the second pressing block 323 , and the pressing wheel 224 is used for pressing the second pressing block 323 .

[0038] It can be understood that the purpose of providing the clamping wheel 224 is to allow all the force of the clamping arm 222 to be released through one point of the clamping wheel 224, so as to better squeeze the second clamping block 323 and prevent the second clamping block 323 from loosening and deviating.

[0039] Preferably, the fixed platform 21 is also provided with a Z-direction guide wheel 214 and two X-direction guide wheels 213 arranged opposite to each other, and the second Y-direction positioning block 321, the Z-direction positioning block 322 and the second clamping block 323 are provided with edges that interfere with the X-direction guide wheel 213 and the Z-direction guide wheel 214 below.

[0040] It can be understood that the edges of the integrated second Y-axis positioning block 321, Z-axis positioning block 322 and second clamping block 323 can be allowed to slide against the X-axis guide wheel 213 and the Z-axis guide wheel 214, so that the second Y-axis positioning block 321 can be more accurately fitted with the second Y-axis fixed block 211, and the Z-axis positioning block 322 can be more accurately fitted with the Z-axis fixed block 212, and then the two can be fixed by, for example, a bolt structure.

[0041] In summary, the vehicle body side panel clamping device in the above-mentioned embodiment of the present invention solves the quality problem that the positioning pin at the gripper end is severely stressed during the long-term use of the existing positioning and clamping device, which easily causes the positioning pin to deform and then causes the parts to fall down, thereby improving the stability and accuracy of the gripper body during use.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vehicle body side panel clamping device, characterized in that: The invention comprises a fixing frame, an upper fixing mechanism of a gripper arranged on the fixing frame, a lower fixing mechanism of a gripper arranged on the ground and arranged opposite to the upper fixing mechanism of the gripper, and a gripper mechanism fixedly connected to the upper fixing mechanism of the gripper and the lower fixing mechanism of the gripper, wherein the gripper mechanism comprises a gripper body, an upper gripper end connecting component arranged above the gripper body, and a lower gripper end connecting component arranged below the gripper body, and the upper fixing mechanism of the gripper comprises a fixing component fixedly connected to the fixing frame, a first Y-direction fixing block and a first clamping group arranged on the fixing component Part, the first Y-axis fixed block is connected to the upper gripper end connecting component, the first clamping component is used to clamp and fix the first Y-axis fixed block and the upper gripper end connecting component, the gripper lower fixing mechanism includes a fixed platform placed on the ground, and a second Y-axis fixed block, a Z-axis fixed block and a second clamping component arranged on the fixed platform, the second Y-axis fixed block and the Z-axis fixed block are both connected to the lower gripper end connecting component, and the second clamping component is used to clamp and fix the second Y-axis fixed block and the Z-axis fixed block to the lower gripper end connecting component.

2. The vehicle body side panel clamping device according to claim 1, characterized in that: The upper gripper end connection assembly includes a first Y-direction positioning block and a positioning pin arranged on the first Y-direction positioning block, and the first Y-direction positioning block is connected to the first Y-direction fixing block through the positioning pin.

3. The vehicle body side panel clamping device according to claim 2, characterized in that: The fixing assembly comprises a first positioning connection block and a second positioning connection block fixedly connected to the fixing frame, and the first Y-direction fixing block is fixedly connected to the first positioning connection block.

4. The vehicle body side panel clamping device according to claim 3, characterized in that: The first clamping assembly includes a first cylinder fixedly connected to the second positioning and connecting block, a protective shell connected to the first cylinder, a first rotating shaft rotatably arranged in the protective shell, a rotating frame fixedly connected to the first rotating shaft, a first clamping block arranged on the rotating frame close to the first Y-direction fixed block, and a linkage structure arranged in the protective shell, and the first cylinder is used to drive the first rotating shaft to rotate through the linkage structure.

5. The vehicle body side panel clamping device according to claim 1, characterized in that: The lower gripper end connection assembly includes an integrally arranged second Y-direction positioning block and a Z-direction positioning block, wherein the second Y-direction positioning block is connected to the second Y-direction fixing block, and the Z-direction positioning block is connected to the Z-direction fixing block.

6. The vehicle body side panel clamping device according to claim 5, characterized in that: The second Y-direction positioning block and the Z-direction positioning block are also provided with a second pressing block which is arranged obliquely.

7. The vehicle body side panel clamping device according to claim 6, characterized in that: The second clamping assembly includes a second rotating shaft arranged on the fixed platform, a clamping arm rotatably connected to the second rotating shaft, and a second cylinder rotatably arranged on the fixed platform, the second cylinder is rotatably connected to the clamping arm, and the free end of the clamping arm is used to squeeze the second clamping block.

8. The vehicle body side panel clamping device according to claim 7, characterized in that: A pressing wheel is rotatably provided at one end of the pressing arm close to the second pressing block, and the pressing wheel is used for pressing the second pressing block.

9. The vehicle body side panel clamping device according to claim 6, characterized in that: The fixed platform is also provided with a Z-direction guide wheel and two X-direction guide wheels arranged opposite to each other, and edges that abut against the X-direction guide wheel and the Z-direction guide wheel are provided below the second Y-direction positioning block, the Z-direction positioning block and the second clamping block.

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