Automobile sheet metal part testing fixture

Abstract

The utility model belongs to the technical field of detection tools, and particularly relates to an automobile sheet metal part detection tool which comprises a substrate, supporting rods are symmetrically arranged at the bottom end of the substrate, a detection rod is slidably connected to the middle of the substrate, a rebound assembly is arranged in the middle of the bottom end of the substrate, and the detection rod penetrates through the rebound assembly. A detection assembly is arranged in the middle of the top end of the base plate, an ohmmeter is fixedly installed at the top end of the detection assembly, a circular plate is fixedly connected to the middle of the base plate, spherical shells are fixedly connected to the bottom end of the supporting rod and the bottom end of the detection rod, and balls are connected into the spherical shells in a rolling mode. The springback assembly comprises a cylinder fixedly connected to the bottom end of the circular plate, and the detection rod penetrates through the cylinder. The detection tool is simple in structure, small in size and convenient to carry, detection can be carried out only by placing the detection tool on a part to be detected when the detection tool is used, and the detection tool is simple to operate and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of inspection tool technology, specifically relating to an inspection tool for automotive sheet metal parts. Background Technology

[0002] my country's automotive industry is developing rapidly, and the cycle of car replacement is constantly shortening. This places higher demands on automobile manufacturing, requiring the rapid production of qualified products. Inspection tools are the main tools for testing the accuracy of products, and the quality of inspection tools directly affects the quality of product testing. Some automotive sheet metal parts need to have their flatness measured, so inspection tools are required to test them. The commonly used testing devices have complex structures, large sizes, and inconvenient parts to carry. Moreover, they are relatively complicated to operate and not convenient to use. Utility Model Content

[0003] The purpose of this utility model is to provide an automotive sheet metal parts inspection tool that is simple to operate and easy to use, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automotive sheet metal inspection tool, comprising a base plate, support rods symmetrically arranged at the bottom end of the base plate, a detection rod slidably connected to the middle of the base plate, a spring-loaded assembly arranged at the middle of the bottom end of the base plate, the detection rod passing through the spring-loaded assembly, a detection assembly arranged at the middle of the top end of the base plate, and an ohmmeter fixedly installed at the top end of the detection assembly.

[0005] Furthermore, a circular plate is fixedly connected to the middle of the substrate.

[0006] Furthermore, a spherical shell is fixedly connected to the bottom end of both the support rod and the bottom end of the detection rod, and a ball bearing is rolled inside the spherical shell.

[0007] Furthermore, the rebound assembly includes a cylinder fixedly connected to the bottom end of the circular plate, the detection rod passing through the cylinder, a support plate fixedly connected to the top of the side wall of the detection rod, and springs symmetrically sleeved on the side wall of the detection rod. One end of each of the two springs is fixedly connected to both ends of the support plate, and the other end of each of the two support plates is fixedly connected to both ends of the inner wall of the cylinder.

[0008] Furthermore, the detection assembly includes a housing fixedly connected to the top of the circular plate, a first resistor fixedly connected to the top of the detection rod, a first insulating sheet fixedly connected to the top of the first resistor, and a second resistor fixedly connected to the top of the first insulating sheet.

[0009] Furthermore, a mounting bracket is fixedly installed inside the housing, and a C-shaped metal piece is fixedly connected to one end of the mounting bracket. The C-shaped metal piece is slidably connected to the side wall of one of the second resistor, the first insulating sheet, and the first resistor. A power supply is fixedly installed inside the housing.

[0010] Furthermore, the top of the first resistor and the bottom of the second resistor are electrically connected to the negative terminal of the power supply via wires, and the C-shaped metal sheet is electrically connected to the positive terminal of the power supply via an ohmmeter.

[0011] Compared with the prior art, the advantages of this utility model are: this inspection tool has a simple structure and small size, is easy to carry, and can be used simply by placing the device on the part to be inspected. It is simple to operate and easy to use. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This is a front sectional view of the present invention;

[0015] Figure 4 For the present utility model Figure 3 A magnified structural diagram of part A in the middle.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. Substrate; 11. Circular plate; 2. Support rod; 21. Spherical shell; 22. Ball bearing; 3. Detection rod; 4. Spring-loaded assembly; 41. Cylinder; 42. Support plate; 43. Spring; 5. Detection assembly; 51. Housing; 52. First resistor; 53. First insulating sheet; 54. Second resistor; 55. C-shaped metal sheet; 56. Mounting bracket; 57. Power supply; 58. Second insulating sheet; 6. Ohmmeter. Detailed Implementation

[0018] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0019] like Figure 1As shown, an automotive sheet metal inspection tool includes a base plate 1, support rods symmetrically arranged at the bottom end of the base plate 1, a detection rod 3 slidably connected to the middle of the base plate 1, a spring-loaded assembly 4 arranged at the middle of the bottom end of the base plate 1, the detection rod 3 passing through the spring-loaded assembly 4, a detection assembly 5 arranged at the middle of the top end of the base plate 1, and an ohmmeter 6 fixedly installed at the top end of the detection assembly 5.

[0020] According to the above structure, when in use, the bottom ends of the two support rods 2 are brought into contact with the surface of the automotive sheet metal parts. If the surface of the sheet metal parts is not flat, the detection rod 3 will be pushed up or popped down, thereby changing the resistance of the detection component 5 connected to the circuit. By detecting the resistance value of the detection component 5 connected to the circuit, it can be determined whether the surface of the sheet metal parts is flat, which is convenient to use.

[0021] like Figure 2 As shown, a spherical shell 21 is fixedly connected to the bottom end of the support rod 2 and the bottom end of the detection rod 3, and a ball bearing 22 is rolled inside the spherical shell 21.

[0022] According to the above structure, when the device is moved during testing, the ball bearing 22 rotates inside the spherical shell 21, thereby reducing the wear on the bottom end of the support rod 2 and the bottom end of the detection rod 3, and improving the service life.

[0023] like Figure 3 As shown, a circular plate 11 is fixedly connected to the middle of the substrate 1. The spring-loaded assembly 4 includes a cylinder 41 fixedly connected to the bottom end of the circular plate 11. The detection rod 3 passes through the cylinder 41. A support plate 42 is fixedly connected to the top of the side wall of the detection rod 3. Springs 43 are symmetrically sleeved on the side wall of the detection rod 3. One end of the two springs 43 is fixedly connected to both ends of the support plate 42, and the other end of the two support plates 42 is fixedly connected to both ends of the inner wall of the cylinder 41.

[0024] According to the above structure, in the original state, the support plate 42 and the detection rod 3 move downward under the drive of the spring 43, and the bottom end of the detection rod 3 is lower than the bottom end of the support rod 2.

[0025] like Figure 3 and 4As shown, the detection assembly 5 includes a housing 51 fixedly connected to the top of the circular plate 11. A first resistor 52 is fixedly connected to the top of the detection rod 3. A first insulating sheet 53 is fixedly connected to the top of the first resistor 52. A second resistor 54 is fixedly connected to the top of the first insulating sheet 53. A mounting bracket 56 is fixedly installed inside the housing 51. A C-shaped metal piece 55 is fixedly connected to one end of the mounting bracket 56. The C-shaped metal piece 55 is slidably connected to the side wall of one of the second resistor 54, the first insulating sheet 53, and the first resistor 52. A power supply 57 is fixedly installed inside the housing 51. The top of the first resistor 52 and the bottom of the second resistor 54 are electrically connected to the negative terminal of the power supply 57 through wires, respectively. The C-shaped metal piece 55 is electrically connected to the positive terminal of the power supply 57 through an ohmmeter 6.

[0026] According to the above structure, in the original state, the C-shaped metal piece 55 is located on the side wall of the second insulating sheet 58. During testing, the bottom end of the support rod 2 and the bottom end of the detection rod 3 are both in contact with the surface of the sheet metal part. If the surface of the sheet metal part is flat, the bottom end of the detection rod 3 is flush with the bottom end of the support rod 2. At this time, the C-shaped metal piece 55 is on the first insulating sheet 53, the circuit is in an open circuit state, and the circuit resistance tends to be infinite. If the sheet metal part is in a convex state, the detection rod 3 will be pushed upward, and the C-shaped metal piece 55 will contact the first resistor 52. Thus, part of the first resistor 52 will be connected to the circuit. The same applies when the sheet metal part is in a concave state. The spring 43 pushes the detection rod 3 downward, and part of the second resistor 54 is connected to the circuit, so that the ohmmeter 6 will point to a specific resistance value.

[0027] The working principle of this utility model is as follows: During use, the bottom ends of the two support rods 2 are brought into contact with the surface of the automotive sheet metal part. If the surface of the sheet metal part is uneven, the detection rod 3 will be pushed upward or popped downward, thereby changing the resistance of the circuit connected to the detection component 5. By detecting the resistance value of the circuit connected to the detection component 5, it can be determined whether the surface of the sheet metal part is flat. It is convenient to use. When the device is moved during testing, the ball 22 rotates inside the spherical shell 21, thereby reducing the wear of the bottom ends of the support rods 2 and the detection rod 3 and improving the service life. In the original state, the support plate 42 and the detection rod 3 move downward under the drive of the spring 43, and the bottom end of the detection rod 3 is lower than the bottom end of the support rod 2. In the original state, the C-shaped metal The C-shaped metal piece 55 is located on the side wall of the second insulating piece 58. During testing, the bottom ends of the support rod 2 and the detection rod 3 are both in contact with the surface of the sheet metal part. If the surface of the sheet metal part is flat, the bottom end of the detection rod 3 is flush with the bottom end of the support rod 2. At this time, the C-shaped metal piece 55 is on the first insulating piece 53, the circuit is in an open circuit state, and the circuit resistance tends to be infinite. If the sheet metal part is in a convex state, the detection rod 3 will be pushed upward, and the C-shaped metal piece 55 will contact the first resistor 52. Thus, part of the first resistor 52 will be connected to the circuit. The same applies when the sheet metal part is in a concave state. The spring 43 pushes the detection rod 3 downward, and part of the second resistor 54 is connected to the circuit, so that the ohmmeter 6 will point to a specific resistance value.

[0028] The above description is merely a preferred embodiment 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 should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An automobile sheet metal part testing fixture comprising a base plate (1), characterized in that: The bottom end of the base plate (1) is symmetrically provided with a supporting rod (2), the middle part of the base plate (1) is slidably connected with a detection rod (3), the middle part of the bottom end of the base plate (1) is provided with a rebound assembly (4), the detection rod (3) penetrates the rebound assembly (4), the middle part of the top end of the base plate (1) is provided with a detection assembly (5), and the top end of the detection assembly (5) is fixedly installed with an ohmmeter (6).

2. The automobile sheet metal part testing fixture of claim 1, wherein: The middle part of the base plate (1) is fixedly connected with a circular plate (11).

3. The automobile sheet metal part testing fixture of claim 1, wherein: The bottom end of the supporting rod (2) and the bottom end of the detection rod (3) are fixedly connected with spherical shells (21), and the spherical shells (21) are rollingly connected with the inside of the spherical shells (21).

4. The automotive panel testing fixture of claim 1, wherein: The rebound assembly (4) comprises a cylinder (41) fixedly connected to the bottom end of the circular plate (11), the detection rod (3) penetrates the cylinder (41), the top of the side wall of the detection rod (3) is fixedly connected with a supporting plate (42), the side wall of the detection rod (3) is sleeved with a spring (43), one end of the spring (43) is fixedly connected with the top end of the supporting plate (42), and the other end of the supporting plate (42) is fixedly connected with the top end of the inner wall of the cylinder (41).

5. The automotive panel testing fixture of claim 1, wherein: The detection assembly (5) comprises an outer shell (51) fixedly connected to the top end of the circular plate (11), the top end of the detection rod (3) is fixedly connected with a first resistor (52), the top end of the first resistor (52) is fixedly connected with a first insulating sheet (53), the top end of the first insulating sheet (53) is fixedly connected with a second resistor (54), the top end of the second resistor (54) is fixedly connected with a second insulating sheet (58).

6. The automotive panel testing fixture of claim 5, wherein: The inside of the outer shell (51) is fixedly installed with a mounting bracket (56), one end of the mounting bracket (56) is fixedly connected with a C-shaped metal sheet (55), the C-shaped metal sheet (55) is slidably connected with the side wall of one of the second insulating sheet (58), the second resistor (54), the first insulating sheet (53) and the first resistor (52), and the inside of the outer shell (51) is fixedly installed with a power supply (57).

7. The automotive panel testing fixture of claim 6, wherein: The top end of the first resistor (52) and the top end of the second resistor (54) are respectively electrically connected with the negative electrode of the power supply (57) through wires, and the C-shaped metal sheet (55) is electrically connected with the positive electrode of the power supply (57) through the ohmmeter (6).

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