A flatness testing fixture

Abstract

This utility model relates to the field of automotive structural component flatness testing technology, and discloses a flatness testing fixture, including a testing seat. The testing seat is equipped with a testing mechanism for conveniently using stripes to test the flatness of the paint surface of the automotive structural component. The testing seat also has a fixing mechanism for fixing the testing seat and testing mechanism to mark or repair defects. A top cylinder is fixedly connected to the upper surface of the testing seat, and a side hole is formed through the upper surface of the testing seat. This flatness testing fixture, with a base column and ball bearings at the bottom of the testing seat, a handle and push handle at the top, and a testing plate, a supplementary light module, and flatness stripes rotatably connected within a movable groove and support frame on one side of the testing seat, facilitates placing the testing seat on the automotive structural component using the base column and ball bearings, and using the testing plate, supplementary light module, and flatness stripes to test the paint surface of the automotive structural component.

Description

Technical Field

[0001] This utility model relates to the field of flatness testing technology for automotive structural components, specifically a flatness testing fixture. Background Technology

[0002] Automotive structural components are key parts that make up the car body frame and load-bearing system. They mainly include metal or composite material components such as longitudinal beams, cross beams, A / B / C pillars, roof frame, and floor. Among them, body panels with painted surfaces are also a type of structural component. During automotive sheet metal repair, it is necessary to check the flatness of automotive body panels.

[0003] Existing technologies lack a structure for rapid inspection, marking, and repair of body panels. As a result, when inspecting the flatness of body paint panels, most existing technologies only use inspection plates with multiple sets of parallel lines. The inspection is conducted by observing the texture reflected on the body panel. However, this method requires prolonged hand-held observation, resulting in poor stability and positioning. It is also impossible to fix the inspection plate to the body panel for marking and repairing defects. Based on the shortcomings of existing technologies, this utility model designs a flatness inspection fixture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flatness testing fixture, which has the advantages of rapid testing, marking, and repair of cover parts.

[0005] This utility model provides the following technical solution: a flatness testing fixture, including a testing seat, wherein the testing seat is provided with a testing mechanism that facilitates the flatness testing of the paint surface of automotive structural parts using stripes, and the testing seat is provided with a fixing mechanism that facilitates the fixing of the testing seat and the testing mechanism to mark or repair defects.

[0006] The fixing mechanism includes a top cylinder, a side hole, a pull rod, a suction cup, a push plate, a spring, a pull ring, a lifting strip, and a connecting rod. The top cylinder is fixedly connected to the upper surface of the detection seat. The side hole is opened through the upper surface of the detection seat. The pull rod is inserted through the top cylinder and the detection seat. The suction cup is fixedly connected to the bottom end of the pull rod. The push plate is fixedly connected to the pull rod. The spring is sleeved on the pull rod. The pull ring is located at the top end of the pull rod. The lifting strip is fixedly connected to one side of the suction cup. The connecting rod is fixedly connected to the upper surface of the suction cup.

[0007] As a preferred embodiment of this utility model, the detection mechanism includes a movable groove, a support frame, a first rotating rod, a second rotating rod, a detection plate, a supplementary light module, flat stripes, and fastening bolts. The movable groove is formed on the detection seat. The support frame is fixedly connected to the upper surface of the detection seat on both sides of the support frame. The first rotating rod is rotatably connected to the support frame on one side, and the second rotating rod is rotatably connected to the support frame on the other side. The detection plate is fixedly connected between the first rotating rod and the second rotating rod. The supplementary light module is fixedly connected to the lower surface of the detection plate. The flat stripes are set on the lower surface of the detection plate, and the fastening bolts are threaded into the second rotating rod.

[0008] As a preferred embodiment of this utility model, the upper surface of the detection seat is provided with a push handle, the push handle is provided with a grip, the lower surface of the detection seat is provided with a bottom post, and the bottom end of the bottom post is rotatably connected with a ball bearing.

[0009] As a preferred embodiment of this utility model, the push plate slides and rises within the top cylinder, and the spring is disposed within the top cylinder.

[0010] As a preferred embodiment of this utility model, the connecting rod is inserted into the side hole.

[0011] As a preferred embodiment of this utility model, the fastening bolt is clamped on a support frame on one side.

[0012] As a preferred embodiment of this utility model, the detection plate, the supplementary light module, and the flat stripe are rotatably connected in the movable groove.

[0013] As a preferred embodiment of this utility model, the suction cup is lifted and positioned at the bottom of the detection seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This flatness testing fixture involves turning on the supplementary light module on the testing plate, then placing the testing seat and testing mechanism on the automotive structural component and making the ball bearings contact with the component. While holding the push handle and grip, the ball bearings are used to slowly move the testing seat and testing plate, and the reflective state of the flatness stripes on the paint surface of the automotive structural component is observed. If the stripes on the paint surface are distorted or deformed, it indicates damage. At this point, the pull rod can be pushed downwards to move the suction cup downwards and attach it to the automotive structural component. Releasing the handle allows the spring to return, pushing the push plate and testing seat downwards to improve the stability of the testing seat and testing mechanism. A marker can then be used to mark and inspect the depressions or protrusions on the paint surface of the automotive structural component. After completing the work, the connecting rod is pinched and lifted upwards to open the suction cup, allowing it to adhere and be fixed. This device facilitates the testing of the paint surface of automotive structural components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the testing fixture of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the testing seat and the main body of the testing mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional view of the detection seat and fixing mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the main body of the fixing mechanism of this utility model.

[0021] In the diagram: 1. Detection base; 101. Push handle; 102. Grip; 103. Base column; 104. Ball bearing; 2. Detection mechanism; 201. Movable groove; 202. Support frame; 203. First rotating rod; 204. Second rotating rod; 205. Detection plate; 206. Supplementary light module; 207. Flat stripe; 208. Fastening bolt; 3. Fixing mechanism; 301. Top cylinder; 302. Side hole; 303. Pull rod; 304. Suction cup; 305. Push plate; 306. Spring; 307. Pull ring; 308. Removing strip; 309. Connecting rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 A flatness testing fixture includes a testing seat 1, a testing mechanism 2 on which the flatness of the paint surface of automotive structural parts is facilitated by using stripes, a fixing mechanism 3 on which the testing seat 1 is facilitated by fixing the testing seat 1 and the testing mechanism 2 to mark or repair defects, a push handle 101 on the upper surface of the testing seat 1, a grip 102 on the push handle 101, a base post 103 on the lower surface of the testing seat 1, and a ball bearing 104 rotatably connected to the bottom end of the base post 103.

[0024] Please see Figure 4-5The fixing mechanism 3 includes a top cylinder 301, a side hole 302, a pull rod 303, a suction cup 304, a push plate 305, a spring 306, a pull ring 307, a lifting bar 308, and a connecting rod 309. The top cylinder 301 is fixedly connected to the upper surface of the detection seat 1. The side hole 302 is opened through the upper surface of the detection seat 1. The pull rod 303 is inserted through the top cylinder 301 and the detection seat 1. The suction cup 304 is fixedly connected to the bottom end of the pull rod 303. The push plate 305... A spring 306 is sleeved on the pull rod 303, a pull ring 307 is located at the top of the pull rod 303, a lifting strip 308 is fixedly connected to one side of the suction cup 304, a connecting rod 309 is fixedly connected to the upper surface of the suction cup 304, a push plate 305 slides and rises and falls inside the top cylinder 301, a spring 306 is located inside the top cylinder 301, a connecting rod 309 is inserted into the side hole 302, and the suction cup 304 rises and falls and is located at the bottom of the detection seat 1.

[0025] By setting up the top cylinder 301, the pull rod 303, and the suction cup 304, the detection seat 1 and the detection mechanism 2 can be fixed on the surface of the automotive structural parts, and the defects detected on the surface of the automotive structural parts can be marked or repaired. By setting up the push plate 305 and the spring 306, the stability of the detection seat 1 and the detection mechanism 2 on the surface of the automotive structural parts can be improved. By setting up the side hole 302, the peeling bar 308, and the connecting rod 309, the suction cup 304 can be quickly contacted and fixed, so that the detection seat 1 and the detection mechanism 2 can move to continue the detection.

[0026] Please see Figure 3 The testing mechanism 2 includes a movable slot 201, a support frame 202, a first rotating rod 203, a second rotating rod 204, a testing plate 205, a supplementary lighting module 206, flat stripes 207, and fastening bolts 208. The movable slot 201 is formed on the testing seat 1. The support frame 202 is fixedly connected to the upper surfaces of the testing seat 1 on both sides of the support frame 202. The first rotating rod 203 is rotatably connected to the support frame 202 on one side, and the second rotating rod 204 is rotatably connected to the support frame 202 on the other side. Inside 02, the detection plate 205 is fixedly connected between the first rotating rod 203 and the second rotating rod 204. The supplementary light module 206 is fixedly connected to the lower surface of the detection plate 205. The flat stripe 207 is set on the lower surface of the detection plate 205. The fastening bolt 208 is threadedly connected to the second rotating rod 204. The fastening bolt 208 is clamped on the support frame 202 on one side. The detection plate 205, the supplementary light module 206 and the flat stripe 207 are rotatably connected in the movable groove 201.

[0027] The detection plate 205, supplementary light module 206, and flat stripe 207 are set up to facilitate the inspection of the paint surface of automotive structural parts. The movable groove 201, support frame 202, first rotating rod 203, second rotating rod 204, and fastening bolt 208 are set up to adjust the use angle of the detection plate 205, thereby adapting to automotive structural parts with different curvatures and inspecting them.

[0028] Working principle: When a flatness testing fixture is used, in the initial state, the bottom column 103 and the ball bearing 104 are first set at the bottom of the testing seat 1, and the handle 102 and the push handle 101 are set at the top of the testing seat 1. The detection plate 205, the supplementary light module 206 and the flat stripe 207 are rotatably connected in the movable groove 201 and the support frame 202 on one side of the testing seat 1, so that the testing seat 1 can be placed on the automotive structural parts by using the bottom column 103 and the ball bearing 104, and the paint surface of the automotive structural parts can be tested by using the detection plate 205, the supplementary light module 206 and the flat stripe 207. A pull rod 303 with the bottom end connected to the suction cup 304 is inserted into the top cylinder 301 fixed on the testing seat 1. The pull rod 303 is also equipped with a push plate 305 and a spring 306 to fix the position of the testing seat 1 and the testing mechanism 2.

[0029] When it is necessary to inspect, mark, and repair the paint surface of automotive structural components, firstly, turn on the supplementary light module 206 on the inspection plate 205. Then, place the inspection seat 1 and inspection mechanism 2 on the automotive structural component and make the ball bearing 104 contact the component. At this time, hold the push handle 101 and the grip 102 to slowly push the inspection seat 1 and inspection plate 205 using the ball bearing 104, and observe the reflective state of the smooth stripes 207 on the paint surface of the automotive structural component. If the stripes on the paint surface are distorted or deformed, it indicates a damaged area. When the time is right, push the lever 303 downward to move the suction cup 304 down to adhere to the automotive structural component, and then release. The spring 306 rebounds and pushes the push plate 305 and the detection seat 1 down to improve the stability of the detection seat 1 and the detection mechanism 2. At this time, you can use a marker to mark and inspect the dents or protrusions on the paint surface of the automotive structural component. After the work is completed, pinch the connecting rod 309 and lift it upward to drive the peeling strip 308 to peel off the suction cup 304 and make it contact and adhere for fixation. This device is convenient for inspecting the paint surface of automotive structural components.

[0030] 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 flatness detection jig comprising a detection seat (1), characterized in that: The inspection seat (1) is provided with an inspection mechanism (2) that facilitates the use of stripes to inspect the flatness of the paint surface of automotive structural parts. The inspection seat (1) is also provided with a fixing mechanism (3) that facilitates the fixing of the inspection seat (1) and the inspection mechanism (2) to mark or repair defects. The fixing mechanism (3) includes a top cylinder (301), a side hole (302), a pull rod (303), a suction cup (304), a push plate (305), a spring (306), a pull ring (307), a lifting bar (308), and a connecting rod (309). The top cylinder (301) is fixedly connected to the upper surface of the detection seat (1). The side hole (302) is opened through the upper surface of the detection seat (1). The pull rod (303) is inserted through the top cylinder (301). Inside the 301 and the detection seat (1), the suction cup (304) is fixedly connected to the bottom end of the pull rod (303), the push plate (305) is fixedly connected to the pull rod (303), the spring (306) is sleeved on the pull rod (303), the pull ring (307) is set at the top end of the pull rod (303), the peeling strip (308) is fixedly connected to one side of the suction cup (304), and the connecting rod (309) is fixedly connected to the upper surface of the suction cup (304).

2. The flatness detection jig according to claim 1, characterized by: The detection mechanism (2) includes a movable slot (201), a support frame (202), a first rotating rod (203), a second rotating rod (204), a detection plate (205), a supplementary light module (206), a flat stripe (207), and fastening bolts (208). The movable slot (201) is formed on the detection seat (1). The support frame (202) is fixedly connected to the upper surface of the detection seat (1) on both sides of the support frame (202). The first rotating rod (203) is rotatably connected to the upper surface of the detection seat (1). Inside one side of the support frame (202), the second rotating rod (204) is rotatably connected to the other side of the support frame (202). The detection plate (205) is fixedly connected between the first rotating rod (203) and the second rotating rod (204). The supplementary light module (206) is fixedly connected to the lower surface of the detection plate (205). The flat stripe (207) is set on the lower surface of the detection plate (205). The fastening bolt (208) is threadedly connected to the second rotating rod (204).

3. The flatness detection tool of claim 1, wherein: The upper surface of the detection seat (1) is provided with a push handle (101), the push handle (101) is provided with a grip (102), the lower surface of the detection seat (1) is provided with a bottom post (103), and the bottom end of the bottom post (103) is rotatably connected with a ball bearing (104).

4. The flatness testing fixture according to claim 1, characterized in that: The push plate (305) slides and rises within the top cylinder (301), and the spring (306) is located within the top cylinder (301).

5. A flatness testing fixture according to claim 1, characterized in that: The connecting rod (309) is inserted into the side hole (302).

6. A flatness testing fixture according to claim 2, characterized in that: The fastening bolt (208) is clamped on a support frame (202) on one side.

7. A flatness testing fixture according to claim 2, characterized in that: The detection plate (205), the supplementary light module (206), and the flat stripe (207) are rotatably connected in the movable slot (201).

8. A flatness testing fixture according to claim 1, characterized in that: The suction cup (304) is raised and lowered at the bottom of the detection seat (1).

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