CN209887006U - Self-adaptive clamp system for avoiding clamping deformation of automobile body parts - Google Patents

Self-adaptive clamp system for avoiding clamping deformation of automobile body parts Download PDF

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Publication number
CN209887006U
CN209887006U CN201920743713.5U CN201920743713U CN209887006U CN 209887006 U CN209887006 U CN 209887006U CN 201920743713 U CN201920743713 U CN 201920743713U CN 209887006 U CN209887006 U CN 209887006U
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China
Prior art keywords
positioning
adaptive
self
clamping
oil cylinder
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Expired - Fee Related
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CN201920743713.5U
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Chinese (zh)
Inventor
于奎刚
李忠银
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Shandong University
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Shandong University
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Abstract

The utility model relates to an avoid self-adaptation anchor clamps system that automobile body spare part clamping warp belongs to the tight technical field of automobile body location clamp, the on-line screen storage device comprises a base, be provided with on the base: the positioning pin devices are used for being matched with the positioning holes of the vehicle body parts; the main positioning devices are used for positioning and supporting in the normal direction of the maximum plane of the vehicle body part and are matched with the positioning pin devices to form complete constraint on six degrees of freedom of the vehicle body part; the self-adaptive positioning device comprises a self-adaptive positioning block, and the position of the self-adaptive positioning block can be automatically adjusted along with the deformation of the positioning part of the part. The utility model discloses make the location not produce extra deformation on the part after pressing from both sides tightly, greatly improve postweld automobile body residual stress and deformation, improved welding quality.

Description

Self-adaptive clamp system for avoiding clamping deformation of automobile body parts
Technical Field
The utility model relates to an avoid self-adaptation anchor clamps system of automobile body spare part clamping deformation belongs to the tight technical field of automobile body location clamp.
Background
The automobile body is an important part in automobile construction, because steel plates forming the automobile body are thin, more than three positioning clamps are generally adopted in the normal direction of the maximum plane of the part when large automobile body parts are welded, and the positioning positions of the clamps are designed based on theoretical positions. However, since the parts may deform in the normal direction of the main plane, the auxiliary positioning positions other than the three normal main positioning positions may generate stress and strain during clamping, so that the vehicle body parts may deform during clamping.
At present, the main measure for the situation in China is to improve the manufacturing precision of the parts and reduce the manufacturing error as much as possible so as to reduce the extra deformation of the parts in the subsequent welding and clamping process, but the extra cost is correspondingly increased. Therefore, if the auxiliary positioning positions outside the three normal main positioning positions can be designed into the self-adaptive clamp, the follow-up adjustment can be carried out along with the deformation of the part at the position, so that the extra deformation is not generated on the part after the positioning and clamping, and the residual stress and the deformation of the welded automobile body can be greatly improved.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides an avoid self-adaptation anchor clamps system of automobile body spare part clamping deformation for do not produce extra deformation on the part after the positioning clip is tight, greatly improve and weld back automobile body residual stress and warp, improved welding quality.
Interpretation of terms:
vehicle body parts: the utility model discloses well finger has the body construction than the sheet steel, encloses planking body, right side and encloses planking body, top cap body etc. like preceding frame assembly, preceding planking assembly, left side.
The utility model adopts the following technical scheme:
a self-adaptive clamp system for avoiding clamping deformation of automobile body parts comprises a base, wherein the base is provided with a clamping groove
A plurality of positioning pin devices for cooperating with positioning holes of the vehicle body parts, the mounting positions being determined according to a part welding positioning process;
-at least three primary locating means for locating the support normal to the maximum plane of the body component, in cooperation with the plurality of locating pin means, to form a full constraint of six degrees of freedom for the body component;
the self-adaptive positioning devices are used for auxiliary positioning of the plane normal direction of the vehicle body part, the self-adaptive positioning devices comprise self-adaptive positioning blocks, the positions of the self-adaptive positioning blocks can be automatically adjusted along with the deformation of the positioning position of the part, the part is prevented from generating additional deformation after positioning and clamping, and the arrangement number of the self-adaptive positioning blocks is determined empirically according to the size and the rigidity of the part.
The positioning pin device, the main positioning device and the self-adaptive positioning device can be fixedly connected to the base through bolts, and the number and the installation positions of the positioning pin device, the main positioning device and the self-adaptive positioning device can be determined according to the sizes of parts and welding positioning processes.
Preferably, the positioning pin device is preferably provided with two, the positioning pin device comprises a positioning pin support and a positioning pin located on the positioning pin support, the positioning pin is matched with the positioning hole in the automobile body part to realize the constraint of the plane freedom degree of the automobile body part, and the positioning pin support can be fixed on the base through a bolt.
Preferably, two positioning pin devices are usually adopted for one part, and the positioning pins on the two positioning pin devices are round pins or one is round pin, and the other is diamond pin.
Preferably, the number of the main positioning devices is preferably three, one part adopts three main positioning devices to realize the rotational freedom degrees of the maximum plane normal direction and the plane of the vehicle body part around two axial directions, and the six freedom degrees of the vehicle body part are completely restricted by the two positioning pin devices; the main positioning device comprises a main positioning block, a first clamping device and a first clamp support, the first clamp support is fixed on the base, a first chuck base is arranged on the first clamp support, the top of the first clamp support supports the bottom surface of the first chuck base, the lower part of the first clamp support is mounted on the base through a bolt, the main positioning block is fixed on the upper part of one end of the first chuck base, a first clamping oil cylinder is arranged on the lower part of the other end of the first chuck base, a first rotating connecting rod is connected to the middle part above the first chuck base through a pin and is close to one end of the first clamping oil cylinder, the first rotating connecting rod is located in the middle part above the first chuck base, and the middle part is not a finger position but is deviated to one side of the first clamping oil cylinder;
the first clamping device comprises a first chuck, the first chuck is located above the main positioning block, the first chuck is connected with a first connecting arm, the middle of the first connecting arm (the middle of the first connecting arm is not the middle of the first connecting arm, but the middle of the first connecting arm deviates from the first clamping oil cylinder side) is connected with the upper part of the first rotating connecting rod through a first rotating pin, and the other end of the first connecting arm is connected with a piston rod of the first clamping oil cylinder through a second rotating pin.
The first chuck is preferably made of rubber, when clamping is needed, the piston rod of the first clamping cylinder automatically stops clamping after extending for a certain amount, the extending amount can be determined according to multiple tests to ensure that proper clamping force is provided, according to experience, when the thickness of the part is less than 1.2mm, the clamping force is preferably 300-750N, when the thickness is 1.5-2.5mm, the clamping force is preferably 500-5000N, and according to actual conditions, the clamping can be determined through tests.
The self-adaptive positioning device is used for auxiliary positioning of the automobile body parts, is used for auxiliary supporting when the sizes of the automobile body parts are large, guarantees stability of parts in a welding process, and can be adjusted along with deformation conditions of the parts at the positioning positions of the top end of the positioning device, so that extra deformation and stress of the parts caused by forced stress positioning are avoided.
Preferably, the self-adaptive positioning device comprises a self-adaptive positioning assembly, a second clamping device and a second clamp support, the second clamp support is fixed on the base, a second chuck base is arranged on the second clamp support, the self-adaptive positioning assembly comprises a self-adaptive positioning block, the self-adaptive positioning block is located at the upper part of one end of the second chuck base, a second clamping oil cylinder is arranged at the lower part of the other end of the second chuck base, a second rotating connecting rod is in pin connection with the middle part above the second chuck base, the second rotating connecting rod is close to one end of the second clamping oil cylinder, the second rotating connecting rod is located at the middle part above the second chuck base, and the middle part is not the middle position but is deviated to one side of the second clamping oil cylinder;
the second clamping device comprises a second chuck, the second chuck is located above the self-adaptive positioning block, the second chuck is connected with a second connecting arm, the middle of the second connecting arm (the middle of the second connecting arm is not the middle of the second connecting arm, but the middle of the second connecting arm is inclined to one side of the second clamping oil cylinder) is connected with the upper part of the second rotating connecting rod through a third rotating pin, and the other end of the second connecting arm is connected with a piston rod of the second clamping oil cylinder through a fourth rotating pin. The second clamping device is used for clamping the vehicle body parts at the position corresponding to the self-adaptive positioning block after self-adaptive positioning, and the self-adaptive positioning block is arranged on a second chuck base below a second chuck of the second clamping device;
preferably, the self-adaptive positioning assembly further comprises a clamp shell, a height adjusting oil cylinder is fixedly arranged at the inner bottom of the clamp shell, preferably, the clamp shell is connected with a bolt, a telescopic rod is connected to the bottom of the self-adaptive positioning block, and the other end of the telescopic rod is connected with a piston rod of the height adjusting oil cylinder;
a locking assembly is arranged on the side surface of the clamp shell;
the height adjusting oil cylinder is characterized in that a contact switch is further arranged between the self-adaptive positioning block and the telescopic rod, a contact of the contact switch is located on the upper surface of the self-adaptive positioning block, the contact switch is extruded at the top of the telescopic rod through the positioning block, and in the extending process of a height adjusting oil cylinder piston, the contact switch is closed after touching an automobile body part, the positioning block is controlled to stop moving, and the locking oil cylinder is used for locking.
Preferably, the contact switch comprises a contact, a spring, a shell, a contact switch base, a binding post A, a binding post B and an insulating sleeve positioned between the binding post A and the binding post B, the shell, the contact switch base and the binding post A are of an integral structure, the contact is connected to the top end of the spring, the contact is electrically connected with the binding post A, the binding post A and the binding post B are both connected into a height adjusting oil cylinder system, when the top end of the contact is pressed, the contact pushes the spring to move downwards, when the contact is connected with the binding post B (when the top end of the contact is not pressed, the contact is not in contact with the binding post B), current is input from the binding post A and output from the binding post B through the contact (an insulating layer is arranged at the contact part of the top end of the contact and a part, the setting mode can be flexibly selected, for example, and an output signal is formed, the height adjusting oil cylinder is controlled to stop oil supply, the piston rod of the height adjusting oil cylinder stops moving, and the piston rod of the height adjusting oil cylinder is locked by the locking assembly (the locking block) under the automatic control (the automatic control mode can be designed according to the prior art and is not repeated) at the moment, so that the self-adaptive positioning block is locked.
Preferably, the inner wall of the upper part of the clamp shell is provided with a guide sleeve, and the telescopic rod is positioned in the guide sleeve and slides up and down in the guide sleeve.
Preferably, the locking assembly comprises a locking oil cylinder and a locking block, a piston rod of the locking oil cylinder is connected with the locking block, and the locking block is used for tightly pressing the telescopic rod to lock the self-adaptive positioning block.
The utility model discloses in, the second chuck preferably adopts rubber component, when needs press from both sides tightly, the piston rod extension certain amount back automatic shutdown of the second clamping cylinder realizes pressing from both sides tightly, after self-adaptation locating piece confirmation position, this elongation can be confirmed according to many times of experiments, guarantee to have suitable clamp force, according to experience, when spare part thickness is being less than 1.2mm, the clamp force is preferred at 300 + 750N, when thickness is between 1.5-2.5mm, the clamp force is preferred at 500 + 5000N within a definite time, can confirm according to actual conditions experiment.
The working method of the self-adaptive clamp system for avoiding clamping deformation of the vehicle body parts comprises the following steps:
(1) before clamping, the first chuck and the second chuck are opened, and the self-adaptive positioning block descends to the lowest point;
(2) the vehicle body parts are positioned on the positioning pin device and the main positioning device, and clamping force is generated between the first chuck and the main positioning block to clamp the vehicle body parts;
(3) the self-adaptive positioning block in the self-adaptive positioning device slowly rises until the contact switch contacts with the part, the self-adaptive positioning block is locked by the locking assembly, and a clamping force is generated between the second chuck and the self-adaptive positioning block to clamp the part of the automobile body.
It is worth noting, the utility model discloses only fix a position the clamp tightly to the automobile body spare part that has manufacturing error or warp before operations such as welding, no matter what shape all can adjust the back through self-adaptation positioner and press from both sides tightly, adaptability is wider, and the position of self-adaptation locating piece no longer changes in the operation process.
The utility model discloses in, the part of not giving full details all can adopt prior art to go on.
The utility model has the advantages that:
the utility model discloses at first fix a position and press from both sides tightly to the automobile body part with basic locating pin device and main positioner, restrict six degrees of freedom motions of part, then realize the auxiliary bearing to the automobile body part through self-adaptation positioner, guaranteed welded stability, its supporting position can follow-up adjustment along with the part warp simultaneously for do not produce extra deformation on the part after the clamping, greatly improve and weld back automobile body residual stress and deformation.
The utility model discloses design into self-adaptation positioner with other locating position outside the biggest plane normal direction main positioning device of spare part, this position deformation of spare part carries out follow-up adjustment along with the spare part for do not produce extra deformation on the part after the location presss from both sides tightly, greatly improve and weld back automobile body residual stress and deformation, improved welding quality.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an adaptive clamp system for avoiding clamping deformation of vehicle body parts according to the present invention;
FIG. 2 is a schematic structural view of the locating pin arrangement of FIG. 1;
FIG. 3 is a schematic structural diagram of the primary positioning device of FIG. 1;
FIG. 4 is a schematic structural diagram of the adaptive positioning apparatus shown in FIG. 1;
fig. 5 is a schematic structural diagram of the adaptive positioning assembly of the present invention;
fig. 6 is a schematic structural diagram of the contact switch of the present invention;
the positioning device comprises a base 1, a base 2, a positioning pin device 2-1, a positioning pin 2-2, a positioning pin support 3, a main positioning device 3-1, a main positioning block 3-2, a first clamping support 3-3, a first chuck base 3-4, a first clamping oil cylinder 3-5, a first rotating connecting rod 3-6, a first chuck 3-7, a first connecting arm 3-8, a first rotating pin 3-9, a second rotating pin 4, an adaptive positioning device 4-1, a second chuck support 4-2, a second chuck base 4-3, an adaptive positioning block 4-4, a second clamping oil cylinder 4-5, a second rotating connecting rod 4-6, a second chuck 4-7, a second connecting arm 4-8, a first rotating connecting rod 3-3, 4-9 parts of a third rotating pin, 4-10 parts of a fourth rotating pin, 4-11 parts of a clamp shell, 4-12 parts of a height adjusting oil cylinder, 4-13 parts of a telescopic rod, 4-13 parts of a contact switch, 4-14 parts of a guide sleeve, 4-15 parts of a locking oil cylinder, 4-16 parts of a locking block, 4-13-1 parts of a contact, 4-13-2 parts of a spring, 4-13-3 parts of a shell, 4-13-4 parts of a contact switch base, 4-13-5 parts of a binding post A, 4-13-6 parts of a binding post B, 4-13-7 parts of a binding post B and an insulating sleeve.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be made with reference to the accompanying drawings and specific embodiments, but not limited thereto, and the present invention is not described in detail, and is in accordance with the conventional techniques in the art.
Example 1:
an adaptive clamp system for avoiding clamping deformation of vehicle body parts is shown in figures 1-6 and comprises a base 1, wherein the base 1 is provided with a clamping groove
A plurality of positioning pin devices 2 for cooperating with positioning holes of the vehicle body parts, the mounting positions being determined according to the part welding positioning process;
at least three primary positioning means 3 for positioning support in the direction normal to the maximum plane of the bodywork component, forming, in cooperation with the plurality of positioning pin means 2, a complete constraint of the bodywork component in six degrees of freedom;
a plurality of self-adaptive positioning devices 4 for auxiliary positioning of the vehicle body part in the normal direction of the plane, wherein the self-adaptive positioning devices 4 comprise self-adaptive positioning blocks 4-3, the positions of the self-adaptive positioning blocks 4-3 can be automatically adjusted along with the deformation of the part positioning position, the part is prevented from generating additional deformation after positioning and clamping, and the arrangement number of the self-adaptive positioning devices is determined empirically according to the size and the rigidity of the part.
Locating pin device 2, main positioner 3 and self-adaptation positioner 4 all can be through bolt fixed connection on base 1, and this embodiment 1 includes two locating pin devices 2, three main positioner 3 and four self-adaptation positioner 4.
Example 2:
a self-adaptive clamp system for avoiding clamping deformation of vehicle body parts is structurally shown as an embodiment 1, and is different from the structure shown in figure 2 in that a positioning pin device 2 comprises a positioning pin support 2-2 and a positioning pin 2-1 positioned on the positioning pin support 2-2, the positioning pin 2-1 is matched with a positioning hole in the vehicle body part to realize the constraint of the plane freedom degree of the vehicle body part, and the positioning pin support 2-2 is fixed on a base 1 through a bolt;
one part adopts two positioning pin devices, and the positioning pins 2-1 on the two positioning pin devices are round pins.
Example 3:
the structure of the self-adaptive clamp system for avoiding clamping deformation of the vehicle body parts is as shown in embodiment 1, but the difference is that in the embodiment, one part adopts three main positioning devices 3 to realize the rotational freedom degrees of the vehicle body parts in the maximum plane normal direction and the plane around two axial directions, and the six freedom degrees of the vehicle body parts are completely constrained together with two positioning pin devices 2;
as shown in FIG. 3, the main positioning device 3 comprises a main positioning block 3-1, a first clamping device and a first clamp pillar 3-2, the first clamp pillar 3-2 is fixed on the base 1, the first clamp pillar 3-2 is provided with a first chuck base 3-3, the top of the first clamp pillar 3-2 supports the bottom surface of the first chuck base 3-3, the lower part is mounted on the base 1 through bolts, the main positioning block 3-1 is fixed on the upper part of one end of the first chuck base 3-3, the lower part of the other end of the first chuck base 3-3 is provided with a first clamping cylinder 3-4, the upper middle part of the first chuck base 3-3 is in pin connection with a first rotating connecting rod 3-5, the first rotating connecting rod 3-5 is close to one end of the first clamping cylinder 3-4, the first rotating connecting rod 3-5 is located in the upper middle part of the first chuck base 3-3, the middle part does not mean the middle position, but the middle part is deviated to one side of the first clamping oil cylinder 3-4;
the first clamping device comprises a first clamping head 3-6, the first clamping head 3-6 is positioned above the main positioning block 3-1, the first clamping head 3-6 is connected with a first connecting arm 3-7, the middle part of the first connecting arm 3-7 (the middle part is not the middle of the first connecting arm 3-7, but the middle part is deviated from one side of the first clamping oil cylinder 3-4) is connected with the upper part of the first rotating connecting rod 3-5 through a first rotating pin 3-8, and the other end part of the first connecting arm 3-7 is connected with a piston rod of the first clamping oil cylinder 3-4 through a second rotating pin 3-9.
The first clamping heads 3-6 are made of rubber, when clamping is needed, the piston rod of the first clamping cylinder automatically stops clamping after extending for a certain amount, the extending amount can be determined according to multiple tests to ensure that proper clamping force is provided, according to experience, when the thickness of the part is less than 1.2mm, the clamping force is preferably within the range of 300-.
The self-adaptive positioning device is used for auxiliary positioning of the automobile body parts, is used for auxiliary supporting when the sizes of the automobile body parts are large, guarantees stability of parts in a welding process, and can be adjusted along with deformation conditions of the parts at the positioning positions of the top end of the positioning device, so that extra deformation and stress of the parts caused by forced stress positioning are avoided.
Example 4:
a self-adaptive clamp system for avoiding clamping deformation of vehicle body parts is structurally shown as an embodiment 1, and is different from the structure shown in FIG. 4 in that a self-adaptive positioning device 4 comprises a self-adaptive positioning component, a second clamping device and a second clamp support 4-1, the second clamp support 4-1 is fixed on a base 1, a second chuck base 4-2 is arranged on the second clamp support 4-1, the self-adaptive positioning component comprises a self-adaptive positioning block 4-3, the self-adaptive positioning block 4-3 is positioned at the upper part of one end 4-2 of the second chuck base, a second clamping oil cylinder 4-4 is arranged at the lower part of the other end of the second chuck base 4-2, a second rotating connecting rod 4-5 is in pin connection with the middle part above the second chuck base 4-2, the second rotating connecting rod 4-5 is close to one end of the second clamping oil cylinder 4-4, the second rotating connecting rod 4-5 is positioned in the middle part above the second chuck base 4-2, and the middle part is not at the middle position but is deviated to one side of the second clamping oil cylinder 4-4;
the second clamping device comprises a second chuck 4-6, the second chuck 4-6 is positioned above the self-adaptive positioning block 4-3, the second chuck 4-6 is connected with a second connecting arm 4-7, the middle part of the second connecting arm 4-7 (the middle part is not the middle of the second connecting arm 4-7, but the middle part is deviated from the side of the second clamping oil cylinder 4-4) is connected with the upper part of a second rotating connecting rod 4-5 through a third rotating pin 4-8, and the other end part of the second connecting arm 4-7 is connected with a piston rod of the second clamping oil cylinder 4-4 through a fourth rotating pin 4-9. The second clamping device is used for clamping automobile body parts at the position corresponding to the self-adaptive positioning block after self-adaptive positioning, and the self-adaptive positioning block 4-3 is installed on the second chuck base 4-2 below the second chuck 4-6.
Example 5:
a self-adaptive clamp system for avoiding clamping deformation of vehicle body parts is structurally shown in embodiment 4, and is different from that shown in figure 5, the self-adaptive positioning assembly further comprises a clamp shell 4-10, the inner bottom of the clamp shell 4-10 is connected with a height adjusting oil cylinder 4-11 through a bolt, the bottom of a self-adaptive positioning block 4-3 is connected with a telescopic rod 4-12, and the other end of the telescopic rod 4-12 is connected with a piston rod of the height adjusting oil cylinder 4-11;
the side surfaces of the clamp shells 4-10 are provided with locking assemblies;
a contact switch 4-13 is further arranged between the self-adaptive positioning block 4-3 and the telescopic rod 4-12, a contact of the contact switch 4-13 is located on the upper surface of the self-adaptive positioning block 4-3, the contact switch 4-13 is extruded on the top of the telescopic rod 4-12 through the self-adaptive positioning block, and in the extending process of the piston of the height adjusting oil cylinder 4-11, when the piston touches a vehicle body part, the contact switch is closed, the positioning block is controlled to stop moving, and the contact switch is locked by a locking component.
Example 6:
an adaptive clamp system for avoiding clamping deformation of vehicle body parts is structurally shown as an embodiment 5, except that as shown in figure 6, a contact switch 4-13 comprises a contact 4-13-1, a spring 4-13-2, a shell 4-13-3, a contact switch base 4-13-4, a binding post A4-13-5, a binding post B4-13-6 and an insulating sleeve 4-13-7 positioned between the binding post A4-13-5 and the binding post B4-13-6, the shell 4-13-3, the contact switch base 4-13-4 and the binding post A4-13-5 are in an integral structure, the contact 4-13-1 is connected to the top end of the spring 4-13-2, the contact 4-13-1 is electrically connected with the wiring terminal A4-13-5, the wiring terminal A4-13-5 and the wiring terminal B4-13-6 are both connected into a height adjusting oil cylinder system, when the top end of the contact 4-13-1 is pressed, the contact 4-13-1 pushes the spring 4-13-2 to move downwards, when the contact 4-13-1 is connected with the wiring terminal B4-13-6 (when the top end of the contact is not pressed, the contact is not in contact with the wiring terminal B), current is input from the wiring terminal A and output through the wiring terminal B to form an output signal, the height adjusting oil cylinder is controlled to stop oil supply, the piston rod of the height adjusting oil cylinder stops moving, and at the moment, the locking block of the locking assembly is controlled to lock the piston rod of the height adjusting oil cylinder, so that the self-adaptive positioning block is locked.
Example 7:
a self-adaptive clamp system for avoiding clamping deformation of vehicle body parts is structurally shown as an embodiment 5, and is characterized in that guide sleeves 4-14 are arranged on the inner walls of the upper portions of clamp shells 4-10, and telescopic rods 4-12 are located in the guide sleeves 4-14 and slide up and down in the guide sleeves 4-14.
Example 8:
the structure of the self-adaptive clamp system for avoiding clamping deformation of vehicle body parts is shown as an embodiment 5, and is different from the structure that a locking assembly comprises a locking oil cylinder 4-15 and a locking block 4-16, a piston rod of the locking oil cylinder 4-15 is connected with the locking block 4-16, and the locking block 4-16 is used for tightly pressing a telescopic rod 4-12 to lock a self-adaptive positioning block 4-3.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The self-adaptive clamp system capable of avoiding clamping deformation of automobile body parts is characterized by comprising a base, wherein the base is provided with a clamping groove
-a plurality of locating pin means for cooperating with locating holes of the body component;
-at least three primary locating means for locating the support normal to the maximum plane of the body component, in cooperation with the plurality of locating pin means, to form a full constraint of six degrees of freedom for the body component;
a plurality of adaptive positioning devices for auxiliary positioning of the vehicle body component normal to the plane, the adaptive positioning devices comprising an adaptive positioning block, the position of which is automatically adjustable in response to the deformation of the component location.
2. The adaptive clamp system for avoiding clamping deformation of the vehicle body part according to claim 1, wherein the positioning pin device comprises a positioning pin support and a positioning pin arranged on the positioning pin support, the positioning pin is matched with a positioning hole in the vehicle body part, and the positioning pin support is fixed on the base.
3. The adaptive clamp system for avoiding clamping deformation of the vehicle body part as claimed in claim 2, wherein the number of the positioning pin devices is two, and the positioning pins on the two positioning pin devices are round pins or one is round pin and the other is diamond pin.
4. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 1, wherein the number of the main positioning devices is three, each main positioning device comprises a main positioning block, a first clamping device and a first clamp pillar, the first clamp pillar is fixed on the base, a first chuck base is arranged on the first clamp pillar, the main positioning block is positioned at the upper part of one end of the first chuck base, a first clamping oil cylinder is arranged at the lower part of the other end of the first chuck base, a first rotating connecting rod is connected to the middle part above the first chuck base in a pin manner, and the first rotating connecting rod is close to one end of the first clamping oil cylinder;
the first clamping device comprises a first chuck, the first chuck is located above the main positioning block, the first chuck is connected with a first connecting arm, the middle of the first connecting arm is connected with the upper portion of the first rotating connecting rod through a first rotating pin, and the other end of the first connecting arm is connected with a piston rod of the first clamping oil cylinder through a second rotating pin.
5. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 1, wherein the adaptive positioning device comprises an adaptive positioning assembly, a second clamping device and a second clamp pillar, the second clamp pillar is fixed on the base, a second chuck base is arranged on the second clamp pillar, the adaptive positioning assembly comprises an adaptive positioning block, the adaptive positioning block is positioned at the upper part of one end of the second chuck base, a second clamping oil cylinder is arranged at the lower part of the other end of the second chuck base, a second rotating connecting rod is connected to the middle part above the second chuck base through a pin, and the second rotating connecting rod is close to one end of the second clamping oil cylinder;
the second clamping device comprises a second chuck, the second chuck is located above the self-adaptive positioning block, the second chuck is connected with a second connecting arm, the middle of the second connecting arm is connected with the upper portion of the second rotating connecting rod through a third rotating pin, and the other end of the second connecting arm is connected with a piston rod of the second clamping oil cylinder through a fourth rotating pin.
6. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 5, wherein the adaptive positioning assembly further comprises a clamp shell, a height adjusting oil cylinder is fixedly arranged at the bottom of the clamp shell, a telescopic rod is connected to the bottom of the adaptive positioning block, and the other end of the telescopic rod is connected with a piston rod of the height adjusting oil cylinder;
a locking assembly is arranged on the side surface of the clamp shell;
the height adjusting device is characterized in that a contact switch is further arranged between the self-adaptive positioning block and the telescopic rod, a contact of the contact switch is located on the upper surface of the self-adaptive positioning block, the contact switch is extruded at the top of the telescopic rod through the self-adaptive positioning block, and in the extending process of the height adjusting oil cylinder piston, the contact switch is closed after touching an automobile body part, the self-adaptive positioning block is controlled to stop moving and is locked by the locking oil cylinder.
7. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 6, wherein the contact switch comprises a contact, a spring, a shell, a contact switch base, a binding post A, a binding post B and an insulating sleeve positioned between the binding post A and the binding post B, the shell, the contact switch base and the binding post A are of an integral structure, the contact is connected to the top end of the spring and is electrically connected with the binding post A, the binding post A and the binding post B are both connected into the height adjusting oil cylinder system, when the top end of the contact is pressed, the contact pushes the spring to move downwards, when the contact is contacted with the binding post B, current is input from the binding post A and is output through the binding post B to form an output signal, the height adjusting oil cylinder is controlled to stop oil supply, a piston rod of the height adjusting oil cylinder stops moving, and at the moment, the locking assembly locks, the self-adaptive positioning block is locked.
8. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 6, wherein a guide sleeve is arranged on the inner wall of the upper part of the clamp shell, and the telescopic rod is positioned in the guide sleeve and slides up and down in the guide sleeve.
9. The adaptive clamp system for avoiding clamping deformation of vehicle body parts according to claim 8, wherein the locking assembly comprises a locking cylinder and a locking block, a piston rod of the locking cylinder is connected with the locking block, and the locking block is used for tightly pressing the telescopic rod to lock the adaptive positioning block.
CN201920743713.5U 2019-05-21 2019-05-21 Self-adaptive clamp system for avoiding clamping deformation of automobile body parts Expired - Fee Related CN209887006U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026726A (en) * 2019-05-21 2019-07-19 山东大学 A kind of Self adapting fixture system and working method avoiding vehicle body parts clamping deformation
CN116765740A (en) * 2023-08-22 2023-09-19 广东佳阳金属科技有限公司 Welding tool device, automatic welding equipment and using method of cup body connecting piece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026726A (en) * 2019-05-21 2019-07-19 山东大学 A kind of Self adapting fixture system and working method avoiding vehicle body parts clamping deformation
CN110026726B (en) * 2019-05-21 2024-06-18 山东大学 Self-adaptive clamp system for avoiding clamping deformation of vehicle body parts and working method
CN116765740A (en) * 2023-08-22 2023-09-19 广东佳阳金属科技有限公司 Welding tool device, automatic welding equipment and using method of cup body connecting piece
CN116765740B (en) * 2023-08-22 2024-04-05 广东佳阳金属科技有限公司 Welding tool device, automatic welding equipment and using method of cup body connecting piece

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