Rapid clamping device for manufacturing automobile part foam mold

Abstract

The utility model relates to the technical field of clamping devices, in particular to a rapid clamping device for manufacturing an automobile accessory foam mold. The electric push rods are fixedly connected to the two sides of the base respectively; the controller is fixedly connected to the base; a sliding groove is formed in the base; the sleeve is fixedly connected to the electric push rod; the pressure sensor is fixedly connected to the rod end part of the electric push rod; the two moving plates are connected into the sliding grooves in a sliding manner; the spring is fixedly connected between the movable plate and the electric push rod; and the contact plates are respectively arranged on the two movable plates. Through the synergistic effect of the pressure sensor and the spring, the clamping stability of the foam mold is guaranteed, meanwhile, overpressure damage to the foam mold is avoided, intelligent and controllable clamping of the foam mold is achieved, compared with a traditional clamp, higher use safety is achieved, and the production quality of the foam mold is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, and in particular to a quick clamping device for making foam molds for automotive parts. Background Technology

[0002] In the manufacturing process of foam molds for automotive parts, CNC cutting is typically used to shape the molds into the required forms. After cutting, a special coating is often sprayed onto the surface of the foam mold to enhance its surface strength, corrosion resistance, and subsequent demolding performance. This improves the surface properties of the mold and ensures the quality of the automotive parts being molded. However, because the foam mold itself is lightweight and has a low density, the impact force when the coating is sprayed makes it difficult to keep stable. That is, the foam mold is prone to shaking, displacement, or even tipping over during the spraying process, affecting the uniformity of the spray and the adhesion of the coating, thus impacting the quality of the molded automotive parts.

[0003] In addition, although traditional mechanical clamps can provide stable clamping force, the foam mold is soft and easily deformed. During the clamping process, it is easy to leave indentations or damage on the surface, which affects the dimensional accuracy and surface finish of the mold. It may even become a stress concentration point, causing the foam mold to break and crack during subsequent use, affecting its quality and lifespan. In other words, it not only increases the cost of subsequent repair processes, but also causes the mold to be scrapped prematurely. Utility Model Content

[0004] In view of the above-mentioned defects in the prior art, this utility model provides a quick clamping device for manufacturing foam molds for automotive parts that can stably clamp foam molds and avoid overpressure damage to them.

[0005] The technical solution of this utility model is as follows: a quick clamping device for making foam molds for automotive parts, comprising: a base; electric push rods respectively fixedly connected to both sides of the base; a controller fixedly connected to the base, the controller being electrically connected to both electric push rods; a sliding groove provided on the base, the sliding groove being disposed between the two electric push rods; a sleeve fixedly connected to the electric push rods, the rod ends of the electric push rods passing through the sleeves; a pressure sensor fixedly connected to the rod ends of the electric push rods, the pressure sensor being electrically connected to the controller; two movable plates slidably connected within the sliding groove; a spring fixedly connected between the movable plates and the electric push rods, through which the two electric push rods are respectively connected to the two movable plates; and contact plates respectively disposed on the two movable plates.

[0006] In one embodiment, the clamping device further includes: a mounting base fixedly connected to the movable plate; and a ball bearing fixedly connected to the contact plate, the ball bearing being rotatably connected to the mounting base.

[0007] In one embodiment, the clamping device further includes a protective sleeve fixedly connected to the slide groove, the protective sleeve sealingly covering the mating part between the moving plate and the slide groove.

[0008] In one embodiment, the clamping device further includes a soft pad fixedly connected to the contact plate, the soft pad being disposed on the side of the contact plate that contacts the foam mold.

[0009] In one embodiment, the clamping device further includes: a roller rotatably connected to a movable plate, the movable plate making rolling contact with a slide groove via the roller.

[0010] In one embodiment, the clamping device further includes a mounting cylinder fixedly connected to the controller, wherein the controller's button is located inside the mounting cylinder.

[0011] The beneficial effects are as follows: This invention, through the synergistic action of a pressure sensor and a spring, ensures the stability of the foam mold clamping while avoiding overpressure damage, achieving intelligent force-controlled clamping of the foam mold. Compared with traditional clamps, it offers higher safety and guarantees the production quality of the foam mold. Furthermore, by incorporating a contact plate whose angle automatically adjusts to the shape of the foam mold, this invention ensures a perfect fit to irregularly shaped foam molds, adapting to the processing needs of foam molds of different shapes and sizes, and improving the production yield and versatility of this invention. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a partial structural cross-sectional view of the present invention.

[0014] Figure 3 This is a cross-sectional view of the connection structure between the sleeve and the pressure sensor of this utility model.

[0015] Figure 4 This is an exploded view showing the connection relationship between the movable plate, mounting base, and contact plate of this utility model.

[0016] The components in the diagram are labeled as follows: 1-base, 2-mounting plate, 3-controller, 4-electric push rod, 5-slide groove, 6-sleeve, 7-pressure sensor, 8-spring, 9-moving plate, 10-mounting seat, 11-contact plate, 12-ball shaft, 13-protective sleeve, 14-soft pad, 15-roller, 16-mounting cylinder. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] Example: A quick clamping device for manufacturing foam molds for automotive parts, such as... Figures 1-3 As shown, it includes: a base 1, with a drainage groove on the base 1 to promptly drain excess paint during the spraying operation of the foam mold, preventing paint accumulation from affecting the spraying operation of the foam mold; mounting plates 2 fixedly installed in the middle of the front and rear sides of the base 1; electric push rods 4 fixedly installed on the two mounting plates 2 respectively; and controllers 3 fixedly installed in the front and rear sides of the base 1. The controllers 3 are electrically connected to the two electric push rods 4 to synchronously control the two electric push rods 4 to operate in coordination. Both controllers 3 can independently operate the electric push rods 4, so that the operator can conveniently operate the electric push rods 4 from different positions; the base 1 has... The device includes a slide groove 5 positioned between two electric push rods 4; a sleeve 6 fixedly mounted on the electric push rods 4, with the rod ends of the electric push rods 4 passing through the sleeve 6; a pressure sensor 7 fixedly mounted on the rod ends of the electric push rods 4, which is electrically connected to the controller 3; two movable plates 9 slidably mounted within the slide groove 5; a spring 8 fixedly mounted between the movable plates 9 and the electric push rods 4, through which the two electric push rods 4 are respectively connected to the two movable plates 9; and pressure sensors 7 used to sense the elastic deformation force of the spring 8 under pressure; and contact plates 11 respectively mounted on the two movable plates 9.

[0019] First, based on the material properties of the foam mold, a safe limit value for the contact pressure is preset in the pressure sensor 7 to ensure that the clamping force is within the pressure-bearing range of the foam mold. After completion, the foam mold is placed between the two contact plates 11. Then, the controller 3 is used to start the two electric push rods 4, causing their rod ends to extend synchronously and drive the moving plates 9 to move towards each other. When the contact plates 11 contact the surface of the foam mold, the rod ends of the electric push rods 4 continue to advance, and the contact plates 11 are blocked and no longer move. At this time, the spring 8 begins to generate compression deformation, and the pressure sensor 7 monitors the deformation force of the spring 8 in real time. When the sensing value of the pressure sensor 7 reaches the preset safe limit value, the pressure sensor 7 immediately transmits a signal to the controller 3, causing the controller 3 to automatically close the electric push rods 4 and control the moving plates 9 to stop moving. At this time, the restoring tendency of the spring 8 provides a uniform clamping force to the foam mold, thereby achieving stable clamping of the foam mold and avoiding overpressure damage to the foam mold, thus improving the safety of the foam mold.

[0020] like Figure 1 , Figure 2 and Figure 4As shown, this clamping device also includes: a mounting base 10 fixedly mounted on the movable plate 9; and a ball shaft 12 fixedly mounted on the contact plate 11. The ball shaft 12 is rotatably mounted to the mounting base 10, and the contact plate 11 forms a universal joint with the movable plate 9 through the ball shaft 12, achieving ±180° spatial multi-degree-of-freedom rotation. When the contact plate 11 contacts the outer surface of the foam mold, under the action of clamping force, the contact plate 11 can automatically adjust its spatial posture to ensure that its contact surface is completely fitted with the outer contour of the foam mold. In this way, the clamping device can stably clamp various irregularly shaped foam molds while maintaining non-damaging clamping characteristics, thus improving the versatility of the clamping device.

[0021] like Figures 1-2 As shown, this clamping device also includes: a protective sleeve 13 fixedly installed on the slide 5, the protective sleeve 13 sealingly covering the mating part between the moving plate 9 and the slide 5, the protective sleeve 13 preventing paint from falling into the slide 5, preventing the moving plate 9 from getting stuck due to paint solidification, ensuring the freedom of movement of the moving plate 9, and providing full-condition protection for the moving plate 9, thereby improving the service life of this clamping device. The protective sleeve 13 adopts a corrugated tube structure, allowing the protective sleeve 13 to expand and contract synchronously with the reciprocating movement of the moving plate 9; and a soft pad 14 fixedly installed on the contact plate 11, the soft pad 14 being disposed on the side of the contact plate 11 that contacts the foam mold. On the one hand, the soft pad 14 can effectively absorb the mechanical impact transmitted to the foam mold, achieving comprehensive anti-pinch treatment for the foam mold. On the other hand, the foam mold can provide sufficient friction to prevent the foam mold from sliding. The roller 15 mounted on the moving plate 9 rotates, and the moving plate 9 rolls in contact with the slide groove 5 through the roller 15 to improve the smoothness of the movement of the moving plate 9. The mounting cylinder 16 is fixedly mounted on the controller 3, and the button of the controller 3 is located inside the mounting cylinder 16, so that the control switch of the controller 3 is embedded in the operation form, thereby preventing the controller 3 from accidentally touching the switch and improving the safety of this clamping device.

[0022] This invention utilizes the synergistic action of a pressure sensor 7 and a spring 8 to ensure the stability of the foam mold clamping while preventing overpressure damage. This intelligent force-controlled clamping of the foam mold offers higher safety compared to traditional clamps, ensuring the production quality of the foam mold. Furthermore, the invention incorporates a contact plate 11 that automatically adjusts its angle to conform to the shape of the foam mold, ensuring a perfect fit for irregularly shaped molds. This adapts to the processing needs of foam molds of different shapes and sizes, improving the production yield and versatility of this invention.

[0023] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A quick clamping device for manufacturing foam molds for automotive parts, characterized in that: include: Base (1); electric push rods (4) fixedly connected to both sides of the base (1); controller (3) fixedly connected to the base (1), the controller (3) and the two electric push rods (4) are electrically connected; a sliding groove (5) is provided on the base (1), the sliding groove (5) is located between the two electric push rods (4); a sleeve (6) fixedly connected to the electric push rod (4), the rod end of the electric push rod (4) passes through the sleeve (6); a pressure sensor (7) fixedly connected to the rod end of the electric push rod (4), the pressure sensor (7) and the controller (3) are electrically connected; two moving plates (9) are slidably connected in the sliding groove (5); a spring (8) fixedly connected between the moving plate (9) and the electric push rod (4), the two electric push rods (4) are connected to the two moving plates (9) respectively through the spring (8), the pressure sensor (7) is used to sense the elastic deformation force of the spring (8) under pressure; Contact plates (11) are respectively set on two movable plates (9).

2. The quick clamping device for manufacturing foam molds for automotive parts as described in claim 1, characterized in that: The clamping device also includes: a mounting base (10) fixedly connected to the movable plate (9); and a ball shaft (12) fixedly connected to the contact plate (11), wherein the ball shaft (12) is rotatably connected to the mounting base (10).

3. The quick clamping device for manufacturing foam molds for automotive parts as described in claim 2, characterized in that: The clamping device further includes a protective sleeve (13) fixedly connected to the slide (5), the protective sleeve (13) sealingly covering the mating part of the moving plate (9) and the slide (5).

4. The quick clamping device for manufacturing foam molds for automotive parts as described in claim 3, characterized in that: The clamping device further includes a soft pad (14) fixedly connected to the contact plate (11), the soft pad (14) being disposed on the side of the contact plate (11) that contacts the foam mold.

5. The quick clamping device for manufacturing foam molds for automotive parts as described in claim 4, characterized in that: The clamping device further includes a roller (15) rotatably connected to the movable plate (9), and the movable plate (9) makes rolling contact with the slide groove (5) through the roller (15).

6. The quick clamping device for manufacturing foam molds for automotive parts as described in claim 5, characterized in that: The clamping device further includes: a mounting cylinder (16) fixedly connected to the controller (3), and the button of the controller (3) is located inside the mounting cylinder (16).

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