Automobile b-pillar cover polishing tool

Abstract

The utility model discloses a kind of automobile B column apron polishing tool, belong to polishing tool technical field. Including: bottom plate;Profile, it is set on bottom plate, the top surface of profile is used to install product;Each side surface of profile is equipped with opening respectively, the side surface of product is exposed in each opening;Clamping assembly, it is set to bottom plate and is distributed in each side surface of profile, clamping assembly includes cylinder, swing bar and chuck, cylinder rotates chuck by swing bar drive, to hold or loosen product;Regulating valve, it is connected with cylinder and is used to adjust the holding force of chuck. Cylinder output pressure is controlled by regulating valve, to adjust the holding force size that chuck acts on product, make it be in both can prevent product loosening or throwing in high-speed polishing process, again won't cause product deformation due to excessive holding force, to ensure that product polishing quality is good, improve the quality of product.

Description

Technical Field

[0001] This utility model belongs to the field of polishing tooling technology, specifically relating to a polishing tooling for automotive B-pillar cover plates. Background Technology

[0002] In automated polishing operations, tooling fixtures are used to position and clamp the B-pillar cover plate, and their clamping stability directly affects the polishing quality. However, existing B-pillar cover plate polishing fixtures generally suffer from the following problems:

[0003] On the one hand, the clamping force control of the clamping mechanism is not precise, which can easily cause local deformation or crushing of thin-walled products due to excessive clamping force;

[0004] On the other hand, insufficient friction on the clamping surface or too small contact area can easily cause the product to loosen or even fly away during high-speed polishing, resulting in workpiece damage and equipment damage. Utility Model Content

[0005] This utility model addresses the aforementioned problems in the existing technology by proposing a polishing fixture for automotive B-pillar covers that can both clamp the product and prevent product deformation.

[0006] This utility model can be achieved through the following technical solutions:

[0007] A polishing fixture for automotive B-pillar covers, comprising:

[0008] Base plate;

[0009] A profile is provided on the base plate, and the top surface of the profile is used to mount the product;

[0010] Each side of the profile is provided with an opening, and the side of the product is exposed to each of the openings;

[0011] A clamping assembly is disposed on the base plate and distributed on each side of the profile. The clamping assembly includes a cylinder, a rocker arm, and a chuck. The cylinder drives the chuck to rotate through the rocker arm to clamp or release the product.

[0012] A regulating valve, which is connected to the cylinder and used to regulate the clamping force of the chuck.

[0013] As a further improvement of this utility model, the clamping assembly further includes a cylinder seat and a rocker arm seat, wherein,

[0014] The cylinder is mounted on the bottom surface of the base plate via the cylinder seat;

[0015] The swing arm seat is disposed on the top surface of the base plate;

[0016] One end of the rocker arm is connected to the output shaft of the cylinder, and the middle part of the rocker arm is hinged to the rocker arm seat.

[0017] As a further improvement of this utility model, the clamping components located at both ends of the length direction of the profile are first clamping components, and the chucks of the first clamping components have toothed surfaces on their clamping surfaces.

[0018] As a further improvement of this utility model, the tooth surface is composed of multiple parallel triangular barbed racks.

[0019] As a further improvement of this utility model, the clamping components located at both ends of the width direction of the profile are second clamping components, and the clamps of the second clamping components form a conforming fitting part at their clamping ends.

[0020] As a further improvement of this utility model, the base plate is provided with a shim block and a shim column, and the profile is provided on the shim block and the shim column.

[0021] As a further improvement of this utility model, it also includes an upper top assembly, which is installed at the bottom of the base plate and includes:

[0022] A pen-shaped cylinder is mounted on the bottom of the base plate via a mounting plate;

[0023] A push rod, which is connected to the pen-shaped cylinder and extends upward from the notch in the base plate.

[0024] As a further improvement of this utility model, the top end of the top rod is provided with soft rubber.

[0025] As a further improvement of this utility model, the side of the profile is provided with tungsten steel sheets.

[0026] As a further improvement of this utility model, the bottom of the base plate is also connected to a quick-change disc via a shim.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Toothed chucks effectively prevent product slippage and ejection: Toothed chucks with triangular barbs are set at both ends of the profile length direction, which significantly increases the friction of the clamping surface. Under the strong vibration and cutting force generated by high-speed polishing, the product can be firmly fixed and effectively prevented from slipping or being ejected along the length direction, thus improving operation safety and processing stability.

[0029] 2. Contour-fit chuck to avoid local deformation: A chuck with a contour-fitting part is used in the width direction to achieve a large-area contact with the product clamping surface, so that the clamping force is evenly distributed throughout the contact area, avoiding stress concentration caused by point contact or line contact, thereby preventing local indentation or plastic deformation in thin-walled or curved areas, and ensuring the dimensional accuracy and appearance quality of the product.

[0030] 3. Precise clamping force control via regulating valve: By installing a regulating valve in the air circuit, the output pressure of the cylinder can be precisely controlled, thereby flexibly adjusting the clamping force of the chuck. This design allows the tooling to apply force "on demand" according to different product structures and material characteristics, ensuring reliable clamping while avoiding overpressure damage, thus improving the tooling's versatility, adaptability, and process controllability. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the automotive B-pillar cover polishing fixture of this utility model;

[0032] Figure 2 This is a schematic diagram showing the position of the polishing wheel relative to the product during polishing according to this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the first clamping component of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the second clamping component of this utility model;

[0035] Figure 5 This is a structural schematic diagram of the top component of this utility model.

[0036] In the diagram, 100 is the base plate; 110 is the profile; 111 is the tungsten carbide sheet; 120 is the shim block; 130 is the shim column; 140 is the quick-change plate; and 141 is the shim cylinder.

[0037] 200, First clamping assembly; 210, Second clamping assembly; 220, Cylinder; 221, Cylinder seat; 222, Adjusting valve; 230, Rocker arm; 231, Rocker arm seat; 240, Chuck; 241, Toothed surface; 242, Contour fitting part;

[0038] 300. Top assembly; 310. Pen-shaped cylinder; 320. Mounting plate; 330. Top rod; 331. Soft rubber.

[0039] 400. Product; 410. Polishing wheel. Detailed Implementation

[0040] 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.

[0041] like Figures 1-5 As shown, this utility model provides a polishing fixture for automotive B-pillar covers, comprising:

[0042] Base plate 100;

[0043] A profile 110 is provided on a base plate 100, and the top surface of the profile 110 is used to mount the product 400.

[0044] Each side of the profile 110 has an opening, and the side of the product 400 is exposed to each opening;

[0045] The clamping assembly is disposed on the base plate 100 and distributed on each side of the profile 110. The clamping assembly includes a cylinder 220, a rocker arm 230 and a chuck 240. The cylinder 220 drives the chuck 240 to rotate through the rocker arm 230 to clamp or release the product 400.

[0046] The regulating valve 222 is connected to the cylinder 220 and is used to regulate the clamping force of the chuck 240.

[0047] It is worth mentioning that by setting clamping components on each side of the profile 110 and using the cylinder 220 to drive the swing arm 230 to rotate the chuck 240, stable clamping of the product 400 is achieved. To ensure that the product 400 is firmly clamped while avoiding deformation, the tooling adopts a pneumatic control method with adjustable clamping force.

[0048] By setting a regulating valve 222 connected to the cylinder 220, the output pressure of the cylinder 220 is precisely controlled, thereby adjusting the clamping force of the chuck 240 on the product 400. This ensures that the product 400 is not loosened or thrown away during the high-speed polishing process of the polishing wheel 410, but is not deformed due to excessive clamping force, thus ensuring good polishing quality of the product 400 and improving the quality of the product 400.

[0049] Preferably, the clamping assembly further includes a cylinder seat 221 and a rocker arm seat 231, wherein,

[0050] Cylinder 220 is mounted on the bottom surface of base plate 100 via cylinder seat 221;

[0051] The swing arm seat 231 is set on the top surface of the base plate 100;

[0052] One end of the rocker arm 230 is connected to the output shaft of the cylinder 220, and the middle part of the rocker arm 230 is hinged to the rocker arm seat 231.

[0053] When the piston of cylinder 220 extends or retracts, the drive lever 230 swings around the hinge point, thereby driving the chuck 240 to complete the clamping or releasing action. This layout makes full use of the vertical space of the base plate 100 to achieve a compact design, making the overall structure more stable and reliable.

[0054] Specifically, by setting the cylinder 220 below the base plate 100 and the rocker arm seat 231 above it in an upper and lower split structure, lateral installation space is effectively saved, the compactness of the tooling layout and the convenience of maintenance are improved. At the same time, the rocker arm 230 adopts a lever transmission method with a central hinge, which ensures smooth movement and rapid response, and can ensure the accuracy of the chuck 240's movement and repeatability, improve the consistency and reliability of clamping, and help ensure the stability and safety of product 400 clamping during automated polishing.

[0055] Preferably, the clamping components located at both ends of the profile 110 along its length are first clamping components 200. The chuck 240 of the first clamping component 200 has a toothed surface 241 on its clamping surface. The toothed surface 241 is composed of multiple parallel triangular barbed teeth. This structure can significantly increase the friction between the contact surface with the product 400. Especially when subjected to large polishing cutting forces, it can effectively prevent the product 400 from sliding or flying along its length, thereby improving the reliability of clamping.

[0056] Preferably, the clamping components located at both ends of the width direction of the profile 110 are second clamping components 210. The chuck 240 of the second clamping component 210 forms a contoured fitting part 242 at its clamping end to achieve large-area fitting contact, so that the clamping force is evenly distributed and local stress concentration is avoided, which may cause the product 400 to deform.

[0057] By employing differentiated clamping designs in different directions, functional complementarity and synergistic optimization are achieved:

[0058] The first clamping assembly 200 enhances anti-slip capability with a high-friction tooth surface 241 structure, effectively coping with dynamic impact forces during the polishing process and preventing the product 400 from loosening;

[0059] The second clamping assembly 210 achieves uniform force distribution through the conformal fitting part 242, and combined with the adjustable clamping force, it avoids indentation or deformation in thin-walled areas due to excessive local pressure.

[0060] The synergistic effect of the two ensures both clamping stability and product protection, significantly improving the yield rate and tooling adaptability of polishing operations.

[0061] Preferably, the base plate 100 is provided with a shim block 120 and a shim column 130, and the profile 110 is set on the shim block 120 and the shim column 130, thereby realizing the rigid lifting between the profile 110 and the base plate 100, so that the installation height of the product 400 matches the robot polishing path and the spatial layout of the surrounding equipment, avoiding interference between the polishing tools and the fixtures.

[0062] Meanwhile, the multi-point support structure of the shim block 120 and the shim column 130 enhances the overall load-bearing rigidity, ensuring that the profile 110 remains stable during clamping and polishing stress, without shifting or sinking.

[0063] Preferably, it also includes an upper top assembly 300, which is mounted on the bottom of the base plate 100 and includes:

[0064] Pen-shaped cylinder 310 is mounted on the bottom of base plate 100 via mounting plate 320;

[0065] The push rod 330 is connected to the pen-shaped cylinder 310 and extends upward from the notch in the base plate 100, and can achieve vertical lifting and lowering movement under the drive of the cylinder 220.

[0066] The component operates during the tooling clamping process: when the clamping is released, the pen-shaped cylinder 310 drives the push rod 330 to lift the product 400 upward, causing it to slightly detach from the molded surface 110, so that the robot gripper can accurately and smoothly remove the product 400; during clamping, it can also assist the product 400 in being accurately positioned and then smoothly lowered.

[0067] By setting up the upper top component 300, reliable demolding and auxiliary positioning of product 400 are achieved during the automatic loading and unloading process, effectively avoiding difficulties in part removal or positional displacement caused by product 400 being too tightly attached to the mold surface 110 or by an adsorption effect. This structure improves the automation level and operational stability of the tooling and robot collaborative operation, reduces abnormalities such as material jamming and part removal failures, and improves production cycle time and operational reliability.

[0068] Furthermore, the top of the push rod 330 is provided with soft rubber 331, so that the contact part between the push rod 330 and the product 400 during the lifting process is a flexible material, which effectively buffers the lifting impact force and avoids the rigid contact causing indentations, scratches or deformation on the bottom surface of the product 400. At the same time, the soft rubber 331 has a certain coefficient of friction, which can increase the stability during lifting and prevent the product 400 from sliding or tilting, further ensuring operational safety and positioning accuracy.

[0069] Preferably, the side of the profile 110 is provided with a tungsten steel sheet 111. The high hardness and excellent wear resistance of the tungsten steel sheet 111 can protect the profile 110 and prevent damage to the profile 110 during the polishing process, thereby extending the service life of the entire tooling.

[0070] Preferably, the bottom of the base plate 100 is also connected to a quick-change plate 140 via a riser 141. The quick-change plate 140 is used for quick docking with the robot end effector. The riser 141 not only provides the necessary installation height to avoid the robot flange and surrounding structures, but also enhances the connection rigidity, ensuring the stability and repeatability of the tooling during dynamic operation.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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 may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A polishing fixture for automotive B-pillar cover plates, characterized in that, include: Base plate; A profile is provided on the base plate, and the top surface of the profile is used to mount the product; Each side of the profile is provided with an opening, and the side of the product is exposed to each of the openings; A clamping assembly is disposed on the base plate and distributed on each side of the profile. The clamping assembly includes a cylinder, a rocker arm, and a chuck. The cylinder drives the chuck to rotate through the rocker arm to clamp or release the product. A regulating valve, which is connected to the cylinder and used to regulate the clamping force of the chuck.

2. The polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The clamping assembly further includes a cylinder seat and a rocker arm seat, wherein... The cylinder is mounted on the bottom surface of the base plate via the cylinder seat; The swing arm seat is disposed on the top surface of the base plate; One end of the rocker arm is connected to the output shaft of the cylinder, and the middle part of the rocker arm is hinged to the rocker arm seat.

3. The polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The clamping assemblies located at both ends of the length direction of the profile are first clamping assemblies, and the chucks of the first clamping assemblies have toothed surfaces on their clamping surfaces.

4. The polishing fixture for an automotive B-pillar cover plate according to claim 3, characterized in that, The tooth surface is composed of multiple parallel triangular barbed teeth.

5. The polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The clamping components located at both ends of the width direction of the profile are second clamping components, and the chucks of the second clamping components form a conformal fitting portion at their clamping ends.

6. The polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The base plate is provided with a shim block and a shim column, and the profile is provided on the shim block and the shim column.

7. A polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, It also includes an upper top assembly, which is mounted on the bottom of the base plate and includes: A pen-shaped cylinder is mounted on the bottom of the base plate via a mounting plate; A push rod, which is connected to the pen-shaped cylinder and extends upward from the notch in the base plate.

8. A polishing fixture for an automotive B-pillar cover plate according to claim 7, characterized in that, The top of the top rod is provided with soft rubber.

9. A polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The side of the profile is provided with tungsten steel sheets.

10. A polishing fixture for an automotive B-pillar cover plate according to claim 1, characterized in that, The bottom of the base plate is also connected to a quick-change plate via a shim.

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