Clamping positioning device

Abstract

The application discloses a clamping positioning device, which comprises a frame, a base, a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is used for positioning the frame on the base in the left-right direction, the second positioning assembly is used for positioning the frame on the base in the front-rear direction, and the third positioning assembly is used for positioning the frame on the base in the up-down direction, wherein the second positioning assembly comprises a second positioning piece and a second limiting piece which are respectively installed on the frame and the base, the second limiting piece is provided with at least two limiting openings which are distributed in the front-rear direction at intervals, and the second positioning piece is selectively matched with one of the limiting openings to position the frame on the base in the front-rear direction, and since the second limiting piece is provided with at least two limiting openings which are distributed in the front-rear direction at intervals, the first positioning piece can be clamped into a suitable limiting opening for positioning according to different sizes and models of vehicle bodies, so that the clamping positioning device can be adapted to different models of vehicle bodies and the convenience of use is improved.

Description

Technical Field

[0001] This invention relates to the field of industrial manufacturing, and more particularly to a clamping and positioning device. Background Technology

[0002] In related technologies, the assembly of a car body-in-white is a multi-layered system. During assembly, several parts are first welded together to form sub-assemblies, which then become the parts in the next layer of assembly. Therefore, the quality of welding directly affects the manufacturing quality of the car body-in-white, and the positioning error of the welding fixture is one of the important factors leading to welding errors. Statistics show that the factors affecting product consistency mainly come from the production equipment; that is, the positioning accuracy of the production equipment determines the accuracy of the product. Current body frame clamping and positioning devices are usually only compatible with one type of car model. When different car models need to be positioned, the corresponding body frame clamping and positioning device needs to be replaced, causing inconvenience in use. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a clamping and positioning device that is compatible with multiple vehicle models.

[0004] According to an embodiment of the present invention, a clamping and positioning device includes a frame, a base, a first positioning component, a second positioning component, and a third positioning component. The frame is used to mount a vehicle body; the base is used to support the frame; the first positioning component is used to position the frame on the base in a left-right direction; the second positioning component is used to position the frame on the base in a front-back direction; and the third positioning component is used to position the frame on the base in a vertical direction. The second positioning component includes a second positioning member and a second limiting member, one of which is mounted on the frame and the other on the base. The second limiting member has at least two limiting openings spaced apart in a front-back direction, and the second positioning member can selectively cooperate with one of the limiting openings to position the frame on the base in a front-back direction.

[0005] The clamping and positioning device according to the embodiments of the present invention has at least the following beneficial effects: since the second limiting member is provided with at least two limiting ports distributed at intervals along the front and rear directions, the first positioning member can be inserted into the appropriate limiting port for positioning according to different sizes and models of the vehicle body, thereby enabling the clamping and positioning device to adapt to different models of vehicle body and improving the convenience of use.

[0006] According to some embodiments of the present invention, the second positioning component further includes a driving member for driving the second positioning member to move toward or away from the limiting port.

[0007] According to some embodiments of the present invention, the second limiting member includes a plurality of limiting rollers spaced apart, and the limiting opening is formed between adjacent limiting rollers.

[0008] According to some embodiments of the present invention, the end of the second positioning member facing the limiting port is provided with a snap-fit ​​end, and the thickness of the snap-fit ​​end gradually increases from the end facing the limiting port to the end closer to the body of the second positioning member.

[0009] According to some embodiments of the present invention, the second positioning component includes a guide mechanism for guiding the second positioning member to move toward or away from the limiting port.

[0010] According to some embodiments of the present invention, the guiding mechanism includes a fixing member and at least two spaced-apart guide members, the guide members being mounted on the fixing member, and a guide channel for guiding the movement of the second positioning member is formed between the at least two guide members.

[0011] According to some embodiments of the present invention, the guide member is a guide roller, and the guide roller is rotatably mounted on the fixing member.

[0012] According to some embodiments of the present invention, the fixing member is a box with openings at both ends, the guide roller is rotatably installed in the box so that the inner cavity of the box forms the guide channel, and the second positioning member passes through the opening into the guide channel.

[0013] According to some embodiments of the present invention, the end of the second positioning member is provided with a connecting groove, and the end of the driving member passes through the connecting groove and is connected to the second positioning member.

[0014] According to some embodiments of the present invention, the base is provided with at least two positioning posts, the at least two positioning posts are located on both sides of the frame in the left-right direction, the second limiting member is provided with at least two and is respectively installed on the corresponding positioning posts, the second positioning member is installed on the frame and is configured in one-to-one correspondence with the second limiting member.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a front view schematic diagram of a clamping and positioning device according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the image;

[0020] Figure 4 This is a top view schematic diagram of a clamping and positioning device according to an embodiment of the present invention;

[0021] Figure 5 for Figure 4 Enlarged view of point C in the image;

[0022] Figure 6 for Figure 4 Enlarged view of point D in the image;

[0023] Figure 7 This is a top view of the base according to an embodiment of the present invention (positioning posts omitted);

[0024] Figure 8 for Figure 7 Enlarged view of point E in the image;

[0025] Figure 9 This is a schematic diagram of a first positioning member and a third positioning member connected as a single unit according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of the second positioning component according to an embodiment of the present invention (the second limiting member is omitted).

[0027] Figure label:

[0028] Frame 100;

[0029] Base 200, positioning post 210;

[0030] First positioning component 300, first positioning element 310, gasket 311, first limiting element 320;

[0031] The second positioning component 400, the second positioning member 410, the snap-fit ​​end 411, the second limiting member 420, the limiting port 421, the driving member 430, the driving rod 431, the guide mechanism 440, the fixing member 441, the guide member 442, and the rotating shaft 443.

[0032] Third positioning component 500, third positioning element 510, third limiting element 520. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limiting this invention.

[0035] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 10 The clamping and positioning device of this invention includes a frame 100 and a base 200. A vehicle body clamp is mounted on the frame 100, allowing a vehicle body to be mounted onto the frame 100. The base 200 is located below the frame 100 and supports the frame 100. The clamping and positioning device also includes a first positioning component 300, a second positioning component 400, and a third positioning component 500. The first positioning component 300 positions the frame 100 onto the base 200 in the left-right direction, the second positioning component 400 positions the frame 100 onto the base 200 in the front-back direction, and the third positioning component 500 positions the frame 100 onto the base 200 in the vertical direction.

[0038] Reference Figure 3 , Figures 6 to 8Specifically, the first positioning component 300 includes a first positioning element 310 and a first limiting element 320. One of the first positioning element 310 and the first limiting element 320 is mounted on the frame 100, and the other is mounted on the base 200. For example, the first positioning element 310 is mounted on the bottom end of the frame 100, and the first limiting element 320 is mounted on the top end of the base 200. Alternatively, the first positioning element 310 can be mounted on the top end of the base 200, and the first limiting element 320 can be mounted on the bottom end of the frame 100. The first positioning element 310 can be a positioning block, and the first limiting element 320 can be a limiting block with a positioning groove. When the positioning block is engaged in the positioning groove, the positioning groove can restrict the movement of the positioning block in the left and right directions, thereby positioning the frame 100 on the base 200 in the left and right directions. Of course, the first limiting member 320 can also be composed of at least two rollers, with a positioning gap between the two rollers. When the first positioning member 310 is engaged in the positioning gap, the two rollers can restrict the movement of the first positioning member 310 in the left and right directions, thereby positioning the frame 100 on the base 200 in the left and right directions. Specifically, there can be two or more first limiting members 320, as shown in the reference. Figure 7 For example, three first limiting members 320 are provided and spaced apart at the upper end of the base 200. The three first limiting members 320 can be distributed in a triangular shape at the upper end of the base 200, or other distribution shapes are also possible. Correspondingly, three first positioning members 310 are also provided and spaced apart at the lower end of the frame 100. With the above arrangement, the clamping and positioning device can provide more reliable positioning and higher positioning repeatability when clamping large car bodies.

[0039] Reference Figure 1 , Figure 2 , Figure 5 and Figure 10Specifically, the second positioning component 400 includes a second positioning element 410 and a second limiting element 420. One of the second positioning element 410 and the second limiting element 420 is mounted on the frame 100, and the other is mounted on the base 200. For example, the second positioning element 410 can be mounted on the frame 100, and the second limiting element 420 can be mounted on the base 200. Alternatively, the second positioning element 410 can be mounted on the base 200, and the second limiting element 420 can be mounted on the frame 100. The specific mounting position can be selected according to actual needs. The second limiting element 420 can be provided with two, three, or more limiting ports 421, and the multiple limiting ports 421 are spaced apart in the forward direction. The second limiting element 420 can be an integral structural component with multiple limiting ports 421, for example, the second limiting element 420 is a plate with multiple limiting ports 421; of course, the second limiting element 420 can also be composed of multiple structural components, with limiting ports 421 formed between the multiple structural components. When it is necessary to position the frame 100 on the base 200 in the front-back direction, simply insert the second positioning member 410 into one of the limiting slots 421. This allows the second limiting member 420 to be positioned relative to the second positioning member 410 through the limiting slot 421, preventing the second positioning member 410 from moving relative to the second limiting member 420 in the front-back direction. Consequently, it restricts the movement of the frame 100 relative to the base 200 in the front-back direction. Therefore, by inserting the second positioning member 410 into one of the limiting slots 421, the frame 100 can be positioned on the base 200 in the front-back direction, which is very convenient. Moreover, since there are multiple limiting slots 421, the second positioning member 410 can be inserted into the appropriate limiting slot 421 according to different body sizes and models, making the clamping and positioning device adaptable to more body models and improving ease of use.

[0040] Reference Figure 3 , Figures 6 to 8 Specifically, the third positioning component 500 includes a third positioning element 510 and a third limiting element 520. One of the third positioning element 510 and the third limiting element 520 is mounted on the frame 100, and the other is mounted on the base 200. For example, the third positioning element 510 is mounted on the bottom end of the frame 100, and the third limiting element 520 is mounted on the top end of the base 200. Alternatively, the third positioning element 510 can be mounted on the top end of the base 200, and the third limiting element 520 can be mounted on the bottom end of the frame 100. During positioning, the frame 100 is placed on the base 200. Due to the relatively large weight of the frame 100 with the vehicle body mounted on it, the third limiting element 520 abuts against the third positioning element 510 under the gravity of the frame 100. This allows the third limiting element 520 to limit the third positioning element 510 in the vertical direction, thereby positioning the frame 100 on the base 200 in the vertical direction. Specifically, there can be two or more third limiting elements 520, as described above. Figure 7For example, three third limiting members 520 are provided and spaced apart at the upper end of the base 200. The three third limiting members 520 can be distributed in a triangular shape at the upper end of the base 200, or other distribution shapes are also possible. Correspondingly, three third positioning members 510 are also provided and spaced apart at the lower end of the frame 100. With the above configuration, the clamping and positioning device can provide more reliable positioning and higher positioning repeatability when clamping large car bodies.

[0041] Reference Figure 8 and Figure 9 In some embodiments, the first positioning member 310 and the third positioning member 510 can be connected as one unit, and the first limiting member 320 and the third limiting member 520 can be connected as one unit, thereby making the overall structure more compact. For example, the third positioning member 510 is a positioning block, and mounting grooves are provided on the left and right sides of the positioning block. The first positioning member 310 can be adjusted and installed on the mounting grooves through the shims 311. The first limiting member 320 includes two rollers, and a positioning gap is formed between the two rollers. The third limiting member 520 is also a roller, which is located below the positioning gap.

[0042] Reference Figure 1 When positioning and clamping the frame 100, the frame 100 is moved toward the base 200, so that the first positioning member 310 and the first limiting member 320 cooperate to position the frame 100 on the base 200 in the left and right direction. At this time, under the action of the weight of the frame 100, the third positioning member 510 and the third limiting member 520 cooperate to position the frame 100 on the base 200 in the up and down direction. Then, the second positioning member 410 is pushed into one of the limiting ports 421 of the second limiting member 420, so that the frame 100 is positioned on the base 200 in the front and back direction. At this time, the frame 100 is positioned on the base 200 in the front and back direction, left and right direction and up and down direction, so that the base 200 can perform all-round positioning and clamping of the frame 100, preventing the frame 100 from shaking, which is beneficial to improving the positioning accuracy of the vehicle body installed on the frame 100.

[0043] Reference Figure 2 and Figure 5It is understandable that, in order to facilitate the insertion of the second positioning member 410 into the limiting port 421, the second positioning assembly 400 also includes a driving member 430, which can be a cylinder mechanism, a hydraulic cylinder mechanism, or a motor screw mechanism. When it is necessary to position the frame 100 on the base 200 in the front-rear direction, the driving member 430 drives the second positioning member 410 to move towards the limiting port 421 until the second positioning member 410 is locked in the limiting port 421, thereby facilitating the assembly of the vehicle body. During the assembly process, the driving member 430 presses the second positioning member 410 to prevent it from easily disengaging from the limiting port 421. When it is necessary to release the positioning of the frame 100 in the front-rear direction, the driving member 430 drives the second positioning member 410 away from the limiting port 421, thereby disengaging the second positioning member 410 from the limiting port 421 and releasing the limiting member 420 from restricting the second positioning member 410. This embodiment includes a driving component 430, which allows the second positioning component 410 to move by being driven by the driving component 430, making operation more convenient. Furthermore, the movement of the driving component 430 can be controlled by the control system, thereby achieving automated positioning and improving positioning efficiency.

[0044] Reference Figure 5 In some embodiments, the second limiting member 420 includes multiple limiting rollers, with three or more rollers spaced apart in the front-back direction, forming limiting openings 421 between adjacent rollers. There are two or more limiting openings 421, also spaced apart in the front-back direction. When the second positioning member 410 engages with the limiting opening 421, the end of the second positioning member 410 contacts the limiting roller and drives it to roll, allowing the second positioning member 410 to engage more smoothly within the limiting opening 421.

[0045] Reference Figure 10 It is understood that the second positioning member 410 is provided with a snap-fit ​​end 411, which is located at the end of the second positioning member 410 facing the limiting port 421. Specifically, the thickness of the snap-fit ​​end 411 gradually increases from the end facing the limiting port 421 to the end closer to the body of the second positioning member 410. This makes the snap-fit ​​operation of the second positioning member 410 smoother when it is snapped into the limiting port 421. Then, the snap-fit ​​end 411 continues to extend into the limiting port 421. During this process, the thickness of the snap-fit ​​end 411 gradually increases until the thickness of the snap-fit ​​end 411 is equal to or slightly greater than the width of the limiting port 421, thus making the snap-fit ​​end 411 securely snapped into the limiting port 421.

[0046] Reference Figure 2 and Figure 10 Since the second positioning member 410 has a certain length, it is prone to swaying during movement. To make the second positioning member 410 move more smoothly and less prone to swaying, in some embodiments, the second positioning assembly 400 further includes a guide mechanism 440, which can be mounted on the frame 100 or the base 200. When the second positioning member 410 moves toward or away from the limiting port 421, the guide mechanism 440 guides the movement of the second positioning member 410, thereby making the movement of the second positioning member 410 more stable and preventing the second positioning member 410 from swaying and affecting positioning.

[0047] Reference Figure 10 In the above embodiment, specifically, the guiding mechanism 440 includes a fixing member 441 and at least two spaced-apart guide members 442. The guide members 442 are mounted on the fixing member 441, and a guiding channel is formed between the at least two guide members 442. The second positioning member 410 passes through the guiding channel. When the second positioning member 410 moves along the guiding channel, the guide members 442 can prevent the second positioning member 410 from shaking, thereby making the movement of the second positioning member 410 more stable.

[0048] Reference Figure 10 It is understandable that the guide member 442 can be a guide roller, which can be rotatably mounted on the fixed member 441 through a structure such as a rotating shaft 443. When the second positioning member 410 moves along the guide channel and contacts the guide roller, the second positioning member 410 and the guide roller generate rolling friction. At this time, the frictional resistance of the second positioning member 410 moving in the guide channel is smaller, making the movement of the second positioning member 410 smoother.

[0049] Reference Figure 10 In some embodiments, the fixing member 441 is a box with openings at both ends, and the guide rollers are rotatably mounted inside the box. The guide channel formed between the guide rollers is located within the inner cavity of the box, and the second positioning member 410 passes through the guide channel via the opening. Because the guide channel is located within the inner cavity of the box, and the second positioning member 410 passes through the guide channel, the second positioning member 410 also passes through the inner cavity of the box, thus preventing external dust or other debris from affecting the second positioning member 410.

[0050] Reference Figure 10In some embodiments, the second positioning member 410 has a connecting groove at one end opposite to the snap-fit ​​end 411. The end of the driving member 430 passes through the connecting groove and connects with the second positioning member 410, making installation and connection very convenient. Specifically, the inner wall of the connecting groove may be threaded, and the driving member 430 is provided with a driving rod 431. The end of the driving rod 431 is threaded into the connecting groove, thereby enabling the driving member 430 to drive the second positioning member 410 to move.

[0051] Reference Figure 1 In some embodiments, the base 200 is provided with at least two positioning posts 210, located on both sides of the frame 100 in the left-right direction. At least two second positioning members 420 are provided and respectively installed on the corresponding positioning posts 210. The second positioning members 410 are installed on the frame 100 and correspond one-to-one with the second positioning members 420. This allows the frame 100 to be positioned in the front-back direction on both sides in the left-right direction via the second positioning components 400, making the front-back positioning of the frame 100 more reliable. Alternatively, two second positioning members 420 can be installed on the same positioning post 210, symmetrically distributed on the upper and lower sides of the positioning post 210. Two second positioning members 410 are also provided on the left and right sides of the frame 100 in the up-down direction, thereby achieving better positioning on the left and right sides of the frame 100.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. Clamping positioning device, characterized in that The utility model relates to a vehicle body frame positioning device, comprising: a frame for mounting a vehicle body; a base for supporting the frame; a first positioning assembly for positioning the frame on the base in a left-right direction; a second positioning assembly for positioning the frame on the base in a front-rear direction; a third positioning assembly for positioning the frame on the base in an up-down direction; wherein the second positioning assembly comprises a second positioning member and a second limiting member, one of the second positioning member and the second limiting member is mounted on the frame, and the other is mounted on the base, the second limiting member is provided with at least two limiting openings spaced apart in the front-rear direction, the second positioning member is selectively matched with one of the limiting openings to position the frame on the base in the front-rear direction, one end of the second positioning member towards the limiting opening is provided with a clamping end, the thickness of the clamping end gradually increases from the end towards the limiting opening to the end close to the body of the second positioning member, the second positioning assembly comprises a guide mechanism, the guide mechanism is used for guiding the second positioning member to move towards or away from the limiting opening, the guide mechanism comprises a fixed member and at least two spaced apart guide members, the guide members are mounted on the fixed member, a guide channel for guiding the movement of the second positioning member is formed between the at least two guide members, the guide members are guide rollers, the guide rollers are rotatably mounted on the fixed member, the third positioning assembly comprises a third positioning member and a third limiting member, one of the third positioning member and the third limiting member is mounted on the frame, and the other is mounted on the base, under the action of gravity of the frame, the third limiting member abuts against the third positioning member, so that the third limiting member can limit the third positioning member in the up-down direction, thereby positioning the frame on the base in the up-down direction.

2. The clamping fixture of claim 1, wherein: The second positioning assembly further comprises a driving member, the driving member is used for driving the second positioning member to move towards or away from the limiting opening.

3. The clamping fixture of claim 1, wherein: The second limiting member comprises a plurality of spaced apart limiting rollers, the limiting openings are formed between adjacent limiting rollers.

4. The clamping fixture of claim 1, wherein: The fixed member is a box with openings at both ends, the guide rollers are rotatably mounted in the box so that the inner cavity of the box forms the guide channel, and the second positioning member is arranged in the guide channel through the openings.

5. The clamping fixture of claim 2, wherein: The end of the second positioning member is provided with a connecting groove, and the end of the driving member is arranged in the connecting groove to connect with the second positioning member.

6. Clamping positioning device according to any one of claims 1 to 5, characterized in that: The base is provided with at least two positioning columns, the at least two positioning columns are located on both sides of the frame in the left-right direction, the second limiting member is provided with at least two and is respectively mounted on the corresponding positioning columns, and the second positioning member is mounted on the frame and is provided in one-to-one correspondence with the second limiting member.

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