Fixture capable of enabling plastic baking varnish piece not to deform easily
By designing a clamp with flexible clamping and limiting structures, the problem of deformation of plastic painted parts caused by excessive clamping force was solved, and the parts were made less prone to deformation during high-temperature curing, thus improving product quality and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN JINBAOYUAN IND CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
Existing fixtures use excessive clamping force when holding plastic painted parts, which can cause the painted parts to deform during the high-temperature curing process, affecting product quality.
A clamp was designed, comprising components such as a column, a crossbar, a movable plate, a chuck, a groove, a heat-resistant silicone pad, a screw, and a plug. Through flexible clamping and limiting structures, it avoids damage to painted parts, ensures gas flow, and prevents localized overheating.
It effectively prevents plastic painted parts from deforming during the high-temperature curing process, improves product quality, increases work efficiency, and reduces clamping damage.
Smart Images

Figure CN224221645U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping technology, specifically relating to a clamp that prevents plastic painted parts from deforming. Background Technology
[0002] Plastic painted parts are widely used in automotive interiors, home appliance housings, and consumer electronics. Their surfaces require a dense paint film formed through processes such as spraying and high-temperature baking to meet appearance and weather resistance requirements. In current production processes, painted parts need to be clamped and fixed after spraying and then transferred to an oven for high-temperature curing.
[0003] In the existing technology, the clamps used to hold painted parts for curing are prone to deformation during the curing process due to excessive clamping force, which leads to a decrease in the quality of the painted parts or even renders them unusable.
[0004] This invention attempts to solve or at least alleviate such problems by providing a clamp that prevents plastic painted parts from deforming. Utility Model Content
[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a clamp that makes plastic painted parts less prone to deformation and has the advantage of providing a suitable clamping method.
[0006] To achieve the above objectives, this utility model provides a clamp that prevents plastic painted parts from deforming, comprising: a column, a horizontal bar vertically passing through the column, a movable plate provided on the side of the horizontal bar, the horizontal bar and the movable plate being connected by a U-shaped piece, and clamps provided at the ends of the horizontal bar and the movable plate, the ends of the clamps being arranged facing each other.
[0007] As a further improvement of this utility model, the ends of the clamps are provided with multiple grooves at equal vertical intervals.
[0008] As a further improvement of this utility model, the end of the clamp is provided with a plurality of heat-resistant silicone pads, the heat-resistant silicone pads being matched to the end size and not covering the groove.
[0009] As a further improvement of this utility model, a plug is provided on the side of the crossbar, and a sleeve is provided on the side of the movable plate. The plug can be inserted into the sleeve, and a screw is provided on the side of the sleeve. When the screw is rotated, its bottom can contact the plug.
[0010] As a further improvement of this utility model, the crossbar, movable plate, and U-shaped piece are all arranged in multiple sets at equal intervals in a vertical direction.
[0011] As a further improvement of this utility model, a support plate is provided at the bottom where the column and the crossbar form a right angle.
[0012] As a further improvement of this utility model, a base plate is provided at the bottom of the column.
[0013] As a further improvement of this utility model, a fixing bolt is provided on the side of the column, and the bottom of the fixing bolt can contact the crossbar when the fixing bolt is rotated.
[0014] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0015] This invention relates to a clamp that prevents deformation of plastic painted parts. It uses opposing clamps to hold the painted parts, minimizing damage and deformation by clamping only a small portion. Grooves are provided at the clamps to allow hot air to pass through, preventing localized air stagnation at the contact point with the painted parts, which could lead to overheating and softening. The invention also incorporates a combination of a screw, a rod, and a sleeve to limit the clamping action on the painted parts, preventing continuous force and deformation. A heat-resistant silicone pad is also included for flexible contact, preventing scratches and damage from the clamps. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a clamp for preventing plastic painted parts from deforming, according to the present invention.
[0017] Figure 2 This is a schematic diagram of the structure at point A of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure at point B of this utility model.
[0019] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:
[0020] Column 1; Horizontal bar 2; Movable plate 3; U-shaped piece 4; Insert rod 5;
[0021] 6. Insert sleeve; 7. Screw knob; 8. Clamp; 9. Groove; 10. Heat-resistant silicone pad;
[0022] Support plate 11; base plate 12; fixing bolt 13. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0025] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0026] In the embodiments, by Figure 1-3 Give, Figure 1 This is a schematic diagram of a clamp for preventing plastic painted parts from deforming. It can be seen that multiple sets of crossbars 2 are provided on both sides of the column 1, a support plate 11 is provided at the connection between the column 1 and the crossbar 2, and a base plate 12 is provided at the bottom of the column 1.
[0027] Figure 2 This is a schematic diagram of the structure at point A of this utility model. It can be seen that the insertion rod 5 and the insertion sleeve 6 are respectively connected to the crossbar 2 and the movable plate 3, and the U-shaped piece 4 is connected to the crossbar 2 and the movable plate 3.
[0028] Figure 3 The diagram shows the structure at point B of this utility model. It can be seen that the crossbar 2 and the movable plate 3 are provided with clamps 8 at their ends.
[0029] A clamp for preventing plastic painted parts from deforming includes: a column 1, a horizontal bar 2 vertically passing through the column 1, a movable plate 3 on the side of the horizontal bar 2, the horizontal bar 2 and the movable plate 3 being connected by a U-shaped piece 4, and a clamp 8 at the end of both the horizontal bar 2 and the movable plate 3, with the ends of the clamps 8 facing each other.
[0030] Using the clamping method of chuck 8 only requires clamping a small portion of the painted part, which will not cause large-area damage to the painted part, and will not cause the painted part to deform under the action of clamping force due to the increase in temperature during drying.
[0031] In a preferred embodiment of this invention, the ends of the clamps 8 are provided with multiple vertically spaced grooves 9. The grooves 9 allow gas to flow through them during the drying process, preventing localized overheating due to the lack of gas flow at the clamps 8, which could cause the painted parts to soften and deform.
[0032] In a preferred embodiment of this invention, the end of the chuck 8 is provided with a plurality of heat-resistant silicone pads 10, the heat-resistant silicone pads 10 being sized to match the end and not covering the groove 9. The heat-resistant silicone pads 10 reduce the stress exerted by the chuck 8 on the painted part during clamping, creating flexible contact and further preventing deformation of the painted part.
[0033] In a preferred embodiment of this utility model, a rod 5 is provided on the side of the crossbar 2, and a sleeve 6 is provided on the side of the movable plate 3. The rod 5 can be inserted into the sleeve 6, and a screw 7 is provided on the side of the sleeve 6. When the screw 7 is rotated, its bottom can contact the rod 5. The combination of the rod 5, sleeve 6, and screw 7, after clamping the painted part, limits the movable plate 3 by rotating the screw 7, preventing the movable plate 3 from continuously applying force to the painted part under the action of the U-shaped piece 4, thus avoiding deformation of the painted part.
[0034] In a preferred embodiment of this invention, multiple sets of the crossbar 2, movable plate 3, and U-shaped piece 4 are vertically and equidistantly arranged. The multiple sets allow for the clamping of multiple painted parts at once, increasing work efficiency.
[0035] As a preferred embodiment of this utility model, a support plate 11 is provided at the bottom of the position where the column 1 and the crossbar 2 form a right angle. The support plate 11 provides additional support for the crossbar 2, reducing the probability of the crossbar 2 bending and deforming due to the combined effects of heat and gravity during the baking process.
[0036] As a preferred embodiment of this utility model, a base plate 12 is provided at the bottom of the column 1. The base plate 12 can ensure the stable placement of the column 1 and prevent it from falling over due to instability at the bottom.
[0037] In a preferred embodiment of this utility model, a fixing bolt 13 is provided on the side of the column 1, and when the fixing bolt 13 is rotated, the bottom of the fixing bolt 13 can contact the crossbar 2. The crossbar 2 is provided to pass through the column 1 from both sides, and the fixing bolt 13 can make the crossbar 2 fit tightly against the inner wall of the column 1 to prevent it from shifting.
[0038] Working principle: In use, press the tail of the movable plate 3 to move the two clamps 8 apart, then place the painted part to be clamped between the clamps 8, release the movable plate 3, and under the action of the U-shaped piece 4, the clamps 8 will move closer together to clamp the painted part. At this time, tighten the screw knob 7 to make it contact the insertion rod 5 to prevent the movable plate 3 from continuously applying force, and tighten the fixing bolt 13 to ensure that the crossbar 2 will not shift.
[0039] In summary, this utility model provides a clamp that prevents plastic painted parts from deforming. By using opposing clamps to hold the painted parts, and because only a small portion needs to be clamped, damage to the painted parts is minimized, preventing deformation. Grooves are provided at the clamps to allow hot air to pass through, preventing localized air stagnation at the contact point with the painted parts, which could lead to excessively high temperatures and softening or deformation. This utility model also incorporates a combination of a screw, a rod, and a sleeve, which uses friction to limit the movement of the painted parts after the clamps have formed a grip, preventing continuous force from the clamps and thus avoiding deformation and damage. A heat-resistant silicone pad is also included for flexible contact, preventing the clamps from scratching the painted parts and causing damage.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamp that prevents plastic painted parts from deforming, characterized in that, include: A column (1) is provided with a horizontal bar (2) vertically inserted on the column (1). A movable plate (3) is provided on the side of the horizontal bar (2). The horizontal bar (2) and the movable plate (3) are connected by a U-shaped piece (4). A clamp (8) is provided at the end of both the horizontal bar (2) and the movable plate (3). The ends of the clamps (8) are facing each other.
2. The clamp for preventing deformation of painted plastic parts according to claim 1, characterized in that, The ends of the clamps (8) are each provided with multiple grooves (9) at equal vertical intervals.
3. A clamp for preventing deformation of painted plastic parts according to claim 2, characterized in that, The end of the clamp (8) is provided with a plurality of heat-resistant silicone pads (10), the heat-resistant silicone pads (10) are matched with the end size and do not cover the groove (9).
4. A clamp for preventing deformation of painted plastic parts according to claim 3, characterized in that, The crossbar (2) has a plug rod (5) on its side and the movable plate (3) has a sleeve (6) on its side. The plug rod (5) can be inserted into the sleeve (6). The sleeve (6) has a screw (7) on its side. When the screw (7) is rotated, its bottom can contact the plug rod (5).
5. A clamp for preventing deformation of painted plastic parts according to claim 1, characterized in that, The crossbar (2), movable plate (3), and U-shaped piece (4) are all vertically and equidistantly arranged in multiple sets.
6. A clamp for preventing deformation of painted plastic parts according to claim 1, characterized in that, A support plate (11) is provided at the bottom of the column (1) where it forms a right angle with the crossbar (2).
7. A clamp for preventing deformation of painted plastic parts according to claim 1, characterized in that, The bottom of the column (1) is provided with a base plate (12).
8. A clamp for preventing deformation of painted plastic parts according to claim 1, characterized in that, The column (1) is provided with a fixing bolt (13) on its side. When the fixing bolt (13) is rotated, the bottom of the fixing bolt (13) can contact the crossbar (2).