Automatic alignment type down-pressing mechanism and automobile body side panel assembly sequence tooling

Abstract

The utility model discloses an automatic alignment type down -pressing mechanism and car body side plate sequence combination frock belongs to frock fixture technical field. A kind of automatic alignment type down -pressing mechanism including first pressing plate, movable block rotatably arranged in the circular inner cavity of first pressing plate lower end, and the first pressure head connected with movable block by fastener, first pressure head and first pressing plate between being provided with excess space, allow its rotation. The structure makes the pressure head when contacting product surface can automatically adjust angle, realize automatic alignment, solve the problem of uneven pressing force, clamping failure caused by existing pressure head unable to adhere to inclined plane or irregular surface, improve clamping stability and reliability. A kind of car body side plate sequence combination frock includes fixture base plate, fixed type down -pressing mechanism and automatic alignment type down -pressing mechanism, respectively for the horizontal plane and inclined plane area of product, both collaborative work, realize the stable clamping of complex structure product, improve assembly accuracy and consistency, with good application prospect.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to an automatic alignment pressing mechanism, and also to a car body side panel assembly tooling with an automatic alignment pressing mechanism. Background Technology

[0002] In the automobile manufacturing process, the side panels of the car body are an important part of the body structure. Their assembly accuracy directly affects the appearance quality and structural performance of the whole vehicle. During assembly or processing, it is usually necessary to use tooling fixtures to position and clamp the side panels to ensure that they maintain a stable position and posture during processing.

[0003] Currently, most widely used pressing mechanisms are fixed structures, with a rigid connection between the pressing head and the pressure plate, which cannot be automatically adjusted according to changes in the angle of the pressed surface.

[0004] However, in practical applications, the surface structure of automobile body side panels is complex, often containing multiple inclined surfaces, curved surfaces, or irregular surfaces. Traditional pressing mechanisms have significant limitations in adapting to these non-planar structures.

[0005] For example, when the pressure head cannot fully fit the surface being pressed, it can easily cause uneven distribution of clamping force, small contact area, or even the pressure head being "suspended" or "point-contacting," which in turn affects the clamping effect and leads to problems such as displacement, deformation, or poor welding of the product during processing and assembly. Utility Model Content

[0006] This utility model addresses the aforementioned problems in the existing technology by proposing an automatic alignment pressing mechanism and a tooling for assembling automobile body side panels.

[0007] This utility model can be achieved through the following technical solutions:

[0008] An automatic alignment type pressing mechanism, comprising:

[0009] The first pressure plate is used to connect to an external drive unit. The end of the first pressure plate away from the drive unit is the lower pressure end, and the lower pressure end has a circular inner cavity.

[0010] A movable block, which is rotatably disposed in the circular inner cavity;

[0011] The first pressure head is connected to the lower pressure end of the first pressure plate. The first pressure head is connected to the movable block by fasteners, and after connection, there is a margin between the first pressure head and the first pressure plate for the first pressure head to rotate.

[0012] As a further improvement of this utility model, the end face of the first pressure head used to connect with the movable block is provided with a groove.

[0013] As a further improvement of this utility model, the movable block includes an integrally connected rotating part and a connecting part, wherein the rotating part is located in the circular inner cavity and the two are adapted to each other, and the connecting part is embedded in the groove.

[0014] A tooling for assembling automotive body side panels is also provided, comprising:

[0015] The fixture base plate on which the product is placed;

[0016] A fixed pressing mechanism is mounted on the base plate of the fixture and is used to press down the top surface of the product.

[0017] The aforementioned automatic alignment pressing mechanism is mounted on the base plate of the fixture and is used to press down on the top surface of the product;

[0018] The fixed pressing mechanism presses the horizontal surface of the product, while the automatic aligning pressing mechanism presses the inclined surface of the product.

[0019] As a further improvement of this utility model, the fixed pressing mechanism includes a second pressing cylinder, a second pressure plate, and a second pressing head. The second pressure plate is connected to the cylinder shaft of the second pressing cylinder, and the second pressing head is disposed at the pressing end of the second pressure plate. The second pressing cylinder sequentially drives the second pressing head to press down the product.

[0020] As a further improvement of this utility model, the fixture base plate is also provided with an end positioning block and an end support cylinder, which are located at the front and rear ends of the product respectively. The end support cylinder pushes the support end through its cylinder shaft to press the product against the end positioning block.

[0021] As a further improvement of this utility model, the fixture base plate is also provided with a side support cylinder, which is distributed on the left and right sides of the product. The cylinder shaft pushes the support end to press against the left and right sides of the product.

[0022] As a further improvement of this utility model, the fixture base plate is also provided with a side positioning block, which is located on the side of the product and is used to position and support the product.

[0023] As a further improvement of this utility model, the fixture base plate is also provided with a first bottom support mechanism and a second bottom support mechanism. The first bottom support mechanism is used to support the high side of the bottom surface of the product, and the second bottom support mechanism is used to support the low side of the bottom surface of the product.

[0024] As a further improvement of this utility model, the first bottom support mechanism is configured as a first bottom support cylinder, which is located on the high side of the bottom surface of the product. The first bottom support cylinder pushes the support end to support the bottom surface of the product through its cylinder shaft.

[0025] As a further improvement of this utility model, the second bottom support mechanism includes:

[0026] A lever base, which is mounted on the fixture base plate;

[0027] A lever block, one end of which is hinged to the lever base and the other end of which can rotate upward to abut against the lower side of the bottom surface of the product;

[0028] The second bottom support cylinder pushes the support end against the lever block via the cylinder shaft, so that the support end of the lever block rotates upward and supports the product.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Achieve automatic alignment function and improve clamping adaptability and stability: By setting a rotatable movable block in the first pressure plate, and cooperating with the first pressure head with rotational margin, the first pressure head can automatically adjust its posture according to the actual angle when contacting the product surface, thus achieving automatic alignment function. This solves the problems of uneven clamping force and clamping failure caused by the inability of the pressure head to fit the inclined or irregular surface in the prior art, and significantly improves the stability and reliability of clamping.

[0031] 2. Construct an all-round positioning and clamping system to improve assembly accuracy and consistency: Through the combination of fixed pressing mechanism and automatic aligning pressing mechanism, and with the end, side and bottom support mechanisms, the system realizes multi-directional and multi-angle synchronous positioning and clamping of the product. This system not only improves the positioning accuracy of the fixture, but also ensures that the product maintains a stable posture during the assembly process, thereby improving the consistency of assembly and product quality.

[0032] 3. The structure is reasonably designed, highly automated, and has good versatility and maintainability: It adopts a modular design, which is simple in structure and reliable in operation. In particular, the automatic alignment pressing mechanism can realize automatic adjustment without additional drive or control system, which is easy to integrate into the automated assembly line. At the same time, each support and clamping component can be flexibly adjusted or replaced according to the product structure, which improves the versatility and flexible production capacity of the fixture and reduces maintenance costs. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of the automotive body side panel assembly tooling of this utility model;

[0034] Figure 2This is a structural schematic diagram of the automotive body side panel assembly tooling from another perspective of this utility model;

[0035] Figure 3 This is a cross-sectional view of the automatic alignment type pressing mechanism of this utility model;

[0036] Figure 4 This is a schematic diagram of the bottom surface of the automotive body side panel assembly tooling after the fixture base plate has been removed.

[0037] In the diagram, 100 represents the fixture base plate.

[0038] 200, First pressure plate; 201, Circular inner cavity; 210, Movable block; 211, Rotating part; 212, Connecting part; 220, First pressure head; 221, Groove; 230, First pressing cylinder;

[0039] 300. Second pressing cylinder; 310. Second pressure plate; 320. Second pressure head;

[0040] 400. End positioning block; 410. End support cylinder;

[0041] 500. Side support cylinder; 510. Side positioning block;

[0042] 600. First bottom support cylinder; 610. Second bottom support cylinder; 620. Lever base; 630. Lever block;

[0043] 700. Products. Detailed Implementation

[0044] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. The technical methods of the present invention will be further described, but the present invention is not limited to these embodiments.

[0045] like Figures 1-4 As shown, this utility model provides an automatic alignment pressing mechanism, comprising:

[0046] The first pressure plate 200 is used to connect with the external drive unit (first pressing cylinder 230). The end of the first pressure plate 200 away from the drive unit is the pressing end, and the pressing end has a circular inner cavity 201.

[0047] Movable block 210 is rotatably disposed in circular inner cavity 201;

[0048] The first pressure head 220 is connected to the lower pressure end of the first pressure plate 200. The first pressure head 220 is connected to the movable block 210 by fasteners, and after connection, there is a margin between the first pressure head 220 and the first pressure plate 200 for the first pressure head 220 to rotate.

[0049] In actual operation, when the first pressing cylinder 230 drives the first pressing plate 200 to move downward, causing the first pressing head 220 to contact the surface of the product 700 being pressed (such as a car body side panel), the movable block 210 rotates relative to the circular inner cavity 201, causing the first pressing head 220 to rotate accordingly. This allows the first pressing head 220 to automatically adjust its posture according to the tilt angle of the contact surface, ensuring that its pressing surface is in good contact with the surface of the product 700, thus achieving automatic alignment.

[0050] By setting up this automatic alignment pressing mechanism, the fit and pressing stability between the first pressing head 220 and the product 700 are improved, effectively avoiding processing and assembly errors caused by poor pressing. At the same time, the structure is simple and reliable, requires no additional drive or control system, is easy to maintain and automate, and has good practicality and promotion value.

[0051] Furthermore, the specific structures of the first pressure plate 200, the movable block 210, and the first pressure head 220 are described below:

[0052] The end face of the first pressure head 220, which is used to connect with the movable block 210, has a groove 221.

[0053] The movable block 210 includes an integrally connected rotating part 211 and a connecting part 212, wherein the rotating part 211 is located in the circular inner cavity 201 and the two are adapted to each other, and the connecting part 212 is embedded in the groove 221.

[0054] In other words, the rotating part 211 of the movable block 210 can rotate freely in the circular inner cavity 201, driving the connecting part 212 to rotate synchronously. The connecting part 212 is connected to the first pressure head 220, so that the first pressure head 220 can deflect relative to the first pressure plate 200 within a certain angle range, giving it the function of automatic alignment.

[0055] This utility model also provides a tooling for assembling automotive body side panels, including:

[0056] The fixture base plate 100 serves as the support platform for the entire tooling, on which the product 700 is placed.

[0057] The fixed pressing mechanism is set on the fixture base plate 100 and is used to press down on the relatively horizontal area of ​​the top surface of the product 700. It has a stable structure and concentrated clamping force, and is suitable for clamping requirements of standard planes.

[0058] The aforementioned automatic alignment pressing mechanism is installed on the fixture base plate 100 and is used to press down on the inclined area of ​​the top surface of the product 700. Through its function of automatically adjusting the angle of the pressing head, it ensures that the pressing head fits well with the pressed surface and improves the clamping stability.

[0059] This tooling can be modularly arranged according to the specific structure of different models of car body side panels, and the number and installation position of the two pressing mechanisms can be flexibly adjusted to meet the assembly needs of 700 types of products.

[0060] By setting up a combination of fixed and automatic alignment pressing mechanisms, it is possible to handle both planar and non-planar areas on the product 700. The two work together to ensure that each area can be effectively pressed, avoiding the pressing failure problem caused by the inability of the pressure head to fit properly in traditional clamps.

[0061] Preferably, the fixed pressing mechanism includes a second pressing cylinder 300, a second pressing plate 310, and a second pressing head 320. The second pressing plate 310 is connected to the cylinder shaft of the second pressing cylinder 300, and the second pressing head 320 is disposed at the pressing end of the second pressing plate 310. The second pressing cylinder 300 sequentially drives the second pressing head 320 to press down the product 700.

[0062] During operation, the second pressing cylinder 300 drives the cylinder axis to move downward, which in turn moves the second pressure plate 310 downward synchronously, thereby causing the second pressing head 320 to apply a clamping force to the product 700, achieving stable clamping of the horizontal area of ​​the product 700. This structure has the advantages of fast response speed, uniform clamping force, simple structure, and easy maintenance, and is suitable for clamping requirements of standard planar areas.

[0063] Preferably, to achieve precise positioning and clamping of the end of the product 700, such as the side panel of an automobile body, the following are respectively provided at the front and rear ends of the fixture base plate 100:

[0064] End positioning block 400: Serves as the end positioning reference of product 700, and is used to restrict the degree of freedom of product 700 in the length direction to ensure that it maintains the correct position during assembly.

[0065] End support cylinder 410: Located on the opposite side of the end of product 700, its cylinder shaft is connected to a support end (such as a pressure block or support head), which is used to push towards the end positioning block 400 under the drive of the end support cylinder 410, pressing the product 700 onto the end positioning block 400, thereby realizing the integrated function of end clamping and positioning.

[0066] In actual operation, after the product 700 is placed on the fixture base plate 100 and initially positioned, the end support cylinder 410 is activated. Its cylinder shaft pushes the support end forward, pressing the end of the product 700 onto the end positioning block 400, forming a stable end clamping state. This structure can not only effectively prevent the product 700 from shifting or moving in the front-to-back direction during assembly, but also improve the positioning accuracy and clamping stability of the overall clamping system.

[0067] Preferably, the fixture base plate 100 is also equipped with a side support cylinder 500 and a side positioning block 510, which work together to achieve the positioning and clamping function of the product 700 in the left and right directions.

[0068] The side positioning block 510 is fixedly mounted on the fixture base plate 100 and located on the side of the product 700. It serves as a reference surface for the lateral positioning of the product 700 and is used to limit the degree of freedom of the product 700 in the left and right directions, so as to ensure that the lateral position of the product 700 in the fixture is accurate.

[0069] The side support cylinders 500 are symmetrically arranged on the left and right sides of the product 700. The cylinder shaft is connected to the support end. Under the drive of the side support cylinders 500, the support end can move to the side of the product 700, thereby applying a clamping force to the left and right sides of the product 700 and restricting the product 700 from lateral displacement.

[0070] By setting a side support cylinder 500 and a side positioning block 510 on the fixture base plate 100, the precise positioning and stable clamping of the product 700 in the left and right directions are achieved, further improving the positioning and clamping system of the automotive body side panel assembly tooling.

[0071] Preferably, the fixture base plate 100 is further provided with a first bottom support mechanism and a second bottom support mechanism. The first bottom support mechanism is used to support the high side of the bottom surface of the product 700, and the second bottom support mechanism is used to support the low side of the bottom surface of the product 700.

[0072] By designing separate supports for the high and low sides of the bottom of product 700, it can be ensured that product 700 maintains a horizontal posture in the fixture, avoiding positioning deviation or clamping failure caused by uneven bottom support.

[0073] The first bottom support mechanism is configured as a first bottom support cylinder 600, which is located on the high side of the bottom surface of the product 700. The first bottom support cylinder 600 pushes the support end to support the bottom surface of the product 700 through its cylinder shaft, thereby achieving support for the high side of the bottom surface of the product 700.

[0074] Furthermore, the second bottom support mechanism includes:

[0075] Lever base 620, which is mounted on clamp base plate 100;

[0076] Lever block 630, one end of which is hinged to lever base 620 and the other end can be rotated upward to abut against the lower side of the bottom surface of product 700;

[0077] The second bottom support cylinder 610 pushes the support end to support the lever block 630 through the cylinder shaft, so that the support end of the lever block 630 rotates upward and supports the product 700, thereby achieving support for the lower side of the product 700.

[0078] This lever-type support structure solves the problem of insufficient support for the low side area of ​​the bottom surface of the product 700 by traditional clamps, and avoids product 700 tilting or clamping failure due to uneven support.

[0079] The first bottom support mechanism and the second bottom support mechanism work together to achieve differentiated and synchronous support for the high and low sides of the bottom surface of product 700, enhancing the overall positioning and clamping capability of the fixture for product 700. This structure is ingeniously designed and reliable in operation. It complements the first bottom support mechanism and together they form a complete bottom support system for product 700, effectively improving the clamping stability and assembly accuracy of the fixture.

[0080] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of any combination of the above technical features. The above are specific embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

[0081] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0082] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0083] The technical solutions of the various embodiments of this utility model can be combined with each other, but only if they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0084] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but not necessarily...

[0085] It may deviate from the spirit of this utility model or exceed the scope defined by the appended claims.

Claims

1. An automatic alignment type pressing mechanism, characterized in that, include: The first pressure plate is used to connect to an external drive unit. The end of the first pressure plate away from the drive unit is the lower pressure end, and the lower pressure end has a circular inner cavity. A movable block, which is rotatably disposed in the circular inner cavity; The first pressure head is connected to the lower pressure end of the first pressure plate. The first pressure head is connected to the movable block by fasteners, and after connection, there is a margin between the first pressure head and the first pressure plate for the first pressure head to rotate.

2. The automatic alignment pressing mechanism according to claim 1, characterized in that, The end face of the first pressure head that is used to connect with the movable block has a groove.

3. The automatic alignment type pressing mechanism according to claim 2, characterized in that, The movable block includes an integrally connected rotating part and a connecting part, wherein the rotating part is located in the circular inner cavity and the two are adapted to each other, and the connecting part is embedded in the groove.

4. A tooling for assembling automobile body side panels, characterized in that, include: The fixture base plate on which the product is placed; A fixed pressing mechanism is mounted on the base plate of the fixture and is used to press down the top surface of the product. The automatic alignment pressing mechanism as described in any one of claims 1-3 is disposed on the fixture base plate and used to press down on the top surface of the product; The fixed pressing mechanism presses the horizontal surface of the product, while the automatic aligning pressing mechanism presses the inclined surface of the product.

5. The automotive body side panel assembly fixture according to claim 4, characterized in that, The fixed pressing mechanism includes a pressing cylinder, a second pressing plate, and a second pressing head. The second pressing plate is connected to the cylinder shaft of the pressing cylinder, and the second pressing head is located at the pressing end of the second pressing plate. The pressing cylinder sequentially drives the second pressing head to press down the product.

6. The automotive body side panel assembly fixture according to claim 4, characterized in that, The fixture base plate is also provided with an end positioning block and an end support cylinder, which are located at the front and rear ends of the product, respectively. The end support cylinder pushes the support end through its cylinder shaft to press the product against the end positioning block.

7. The automotive body side panel assembly fixture according to claim 4, characterized in that, The fixture base plate is also provided with a side support cylinder and a side positioning block. The side support cylinder is distributed on the left and right sides of the product. Its cylinder shaft pushes the support end to press against the left and right sides of the product. The side positioning block is located on the side of the product and is used to position and support the product.

8. The assembly fixture for automobile body side panels according to claim 4, characterized in that, The fixture base plate is also provided with a first bottom support mechanism and a second bottom support mechanism. The first bottom support mechanism is used to support the high side of the bottom surface of the product, and the second bottom support mechanism is used to support the low side of the bottom surface of the product.

9. The assembly tooling for automobile body side panels according to claim 8, characterized in that, The first bottom support mechanism is configured as a first bottom support cylinder, which is located on the high side of the bottom surface of the product. The first bottom support cylinder pushes the support end to support the bottom surface of the product through its cylinder shaft.

10. The assembly tooling for automobile body side panels according to claim 8, characterized in that, The second bottom support mechanism includes: A lever base, which is mounted on the fixture base plate; A lever block, one end of which is hinged to the lever base and the other end of which can rotate upward to abut against the lower side of the bottom surface of the product; The second bottom support cylinder pushes the support end against the lever block via the cylinder shaft, so that the support end of the lever block rotates upward and supports the product.

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