Inspection fixture for automotive body parts

Abstract

This application relates to a testing fixture for automotive body parts, belonging to the field of automotive body technology. It includes a testing platform with a body at its top. A clamping assembly for holding the body is located on the top of the testing platform, and fixing assemblies for clamping the sides of the body are located on both sides of the body at the top of the testing platform. The advantages of this application are that when inspecting the body, the operator can place the body part on a support frame and insert positioning rod a, positioning pin, and positioning rod b into the corresponding positioning hole b, positioning groove, and positioning hole a. Through the coordinated use of the clamping and fixing assemblies, stable clamping of the body is achieved. Then, by observing whether the body and the fixture fit together properly, the part's qualification can be determined. The entire testing process is simple to operate, significantly reduces the testing time for a single part, and greatly improves testing efficiency.

Description

Technical Field

[0001] This application relates to the field of automotive body technology, and more particularly to a testing fixture for automotive body parts. Background Technology

[0002] In the automotive manufacturing industry, plastic shell-type parts are widely used, covering key components such as instrument panel shells, door panel trim shells, and storage box shells. These parts are generally mass-produced using injection molding. Because the injection molding process is easily affected by factors such as mold precision, injection temperature, pressure, and cooling rate, the parts are prone to defects such as dimensional deviations, edge deformation, and hole misalignment, which directly affect the subsequent assembly accuracy and vehicle performance. Therefore, conformity testing is a key step in the production process.

[0003] Existing inspection methods mainly rely on manual operation. Workers need to use tools such as calipers and micrometers to measure multiple dimensional parameters of parts, such as length, width, and hole diameter, and then compare the measurement data with the dimensional limits in the product design drawings to determine whether the parts are qualified. However, this inspection method has the following drawbacks: the number of parameters to be measured is large, the inspection time for a single part is long, and it is difficult to adapt to the high-speed production requirements of injection molding, resulting in low inspection efficiency. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide a testing fixture for automotive body parts.

[0005] The technical solution of this application is as follows: a testing fixture for automotive body parts includes a testing platform, a housing is provided at the top of the testing platform, a clamping assembly for clamping the housing is provided at the top of the testing platform, a fixing assembly for clamping the side of the housing is provided at the top of the testing platform and on both sides of the housing, and a positioning assembly for facilitating the testing of the housing is provided at the center of the top of the testing platform.

[0006] In a preferred embodiment, the positioning component includes a positioning groove formed in the middle of the housing, and positioning holes b are formed inside the housing and around the positioning groove. A support frame is fixedly connected to the top center of the detection platform, and a positioning column that cooperates with the positioning groove is fixedly connected to the top of the support frame. A positioning rod a that cooperates with the positioning hole b is fixedly connected to the top of the support frame.

[0007] By adopting the above technical solution, the housing parts are placed on the support frame, and the positioning rod a, positioning column and positioning rod b are inserted into the corresponding positioning hole b, positioning groove and positioning hole a. Then, the housing is stably clamped by the cooperation of the clamping component and the fixing component. Then, it is only necessary to observe whether the housing and the tooling fit together to determine whether the part is qualified.

[0008] In a preferred embodiment, the positioning assembly further includes six brackets disposed on the top of the testing platform. Each bracket has two locking bolts a inside, and the brackets are connected to the testing platform via locking bolts a. Two of the brackets are disposed on the left and right sides of the housing, and the other four brackets are disposed on the front and rear sides of the housing. A positioning rod b is fixedly connected to the top of each bracket. A positioning hole a is provided inside the housing, and the positioning hole a engages with the corresponding positioning rod b.

[0009] By adopting the above technical solution, the position of the bracket on the testing table is adjusted by loosening the locking bolt a, thereby changing the distribution of the positioning rod b.

[0010] In a preferred embodiment, the clamping assembly includes two short columns fixedly connected to both ends of the top of the testing platform. Each short column is provided with a fixed seat at its top. An arc-shaped abutment plate is rotatably connected inside each fixed seat. An electric push rod is rotatably mounted on the outside of each fixed seat. The piston rod of the electric push rod is rotatably connected to the inner wall of the arc-shaped abutment plate.

[0011] By adopting the above technical solution, the extension and retraction of the piston rod of the electric push rod can drive the arc-shaped clamping plate to rotate, thereby achieving the clamping purpose using the arc-shaped clamping plate.

[0012] In a preferred embodiment, the clamping assembly further includes two locking bolts b threaded to both sides of the fixing seat, and the fixing seat is connected to the short column via the locking bolts b.

[0013] By adopting the above technical solution and by setting the locking bolt b, the staff can remove the components from the short column, which facilitates their inspection and maintenance.

[0014] In a preferred embodiment, the fixing assembly includes long columns fixedly connected to both ends of the top of the testing table. Each long column is provided with a locking seat at its top. A clamping arm is rotatably connected to the outer side of the locking seat. A connecting rod a is rotatably connected to the inside of the clamping arm. A connecting rod b is rotatably connected to the inside of the locking seat. The end of the connecting rod a away from the clamping arm is rotatably connected to the outer wall of the connecting rod b.

[0015] By adopting the above technical solution, when link b and link a move to a specific position, external force cannot easily cause them to move in the opposite direction, thereby achieving "self-locking".

[0016] In a preferred embodiment, a threaded rod is slidably connected inside the connecting rod b, and nuts are threadedly connected to the outer periphery of the threaded rod on both sides of the connecting rod b. A clamping post is fixedly connected to the bottom of the threaded rod.

[0017] By adopting the above technical solution, the height of the clamping column and the clamping range of the clamping arm can be adjusted by loosening the nut.

[0018] In a preferred embodiment, the snap-fit ​​seat is provided with a plurality of locking bolts c inside, and the snap-fit ​​seat is connected to the long column through the locking bolts c.

[0019] By adopting the above technical solution and by setting the locking bolt c, it is convenient for workers to disassemble most of the fixed components from the long column.

[0020] Compared with the prior art, the advantages and positive effects of this application are as follows: 1. In this application, when inspecting the housing, the staff can place the housing parts on the support frame and insert the positioning rod a, positioning post and positioning rod b into the corresponding positioning hole b, positioning groove and positioning hole a. Then, through the cooperation of the clamping component and the fixing component, the housing is stably clamped. Afterwards, it is only necessary to observe whether the housing and the tooling fit together to determine whether the part is qualified. The whole inspection process is simple to operate, the inspection time of a single part is significantly shortened, and the inspection efficiency is greatly improved.

[0021] 2. In this application, the operator can loosen the locking bolt a according to the usage requirements of different sized housing parts, thereby adjusting the position of the bracket on the testing table, and thus changing the distribution of the positioning rod b to adapt to the position of the positioning hole a of different housings. Attached Figure Description

[0022] Figure 1 This application provides an overall perspective view of a testing fixture for an automotive body part; Figure 2 This application provides a schematic diagram of the overall structure of a testing fixture for automotive body parts; Figure 3 This application provides a schematic diagram of a clamping assembly for an inspection fixture for automotive body parts; Figure 4 This application provides a schematic diagram of a fixing assembly for a testing fixture for an automotive body part; Figure 5 This application provides a testing fixture for automotive housing parts. Figure 1 Enlarged view of point A in the middle.

[0023] Legend: 1. Testing table; 2. Housing; 3. Positioning assembly; 31. Positioning rod a; 32. Positioning column; 33. Positioning hole a; 34. Positioning rod b; 35. Positioning hole b; 36. Positioning groove; 37. Support frame; 4. Bracket; 5. Locking bolt a; 6. Clamping assembly; 61. Short column; 62. Fixed seat; 63. Arc-shaped abutment plate; 64. Electric push rod; 65. Locking bolt b; 7. Fixed assembly; 71. Long column; 72. Snap-fit ​​seat; 73. Clamping arm; 74. Connecting rod a; 75. Connecting rod b; 76. Threaded rod; 77. Nut; 78. Abutment column; 8. Locking bolt c. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] Reference Figure 1-5 A testing fixture for automotive body parts includes a testing platform 1, a body 2 is provided at the top of the testing platform 1, a clamping assembly 6 for clamping the body 2 is provided at the top of the testing platform 1, a fixing assembly 7 for clamping the sides of the body 2 is provided at the top of the testing platform 1 and on both sides of the body 2, and a positioning assembly 3 for facilitating the testing of the body 2 is provided at the center of the top of the testing platform 1.

[0026] Specifically, the positioning component 3 includes a positioning groove 36 in the middle of the housing 2. Positioning holes b35 are provided inside the housing 2 and around the positioning groove 36. A support frame 37 is fixedly connected to the top center of the inspection table 1. A positioning post 32 cooperating with the positioning groove 36 is fixedly connected to the top of the support frame 37. A positioning rod a31 cooperating with the positioning hole b35 is fixedly connected to the top of the support frame 37. When inspecting the housing 2, the operator can place the housing 2 part on the support frame 37 and insert the positioning rod a31, positioning post 32, and positioning rod b34 into the corresponding positioning holes b35, positioning groove 36, and positioning hole a33. Then, through the cooperation of the clamping component 6 and the fixing component 7, the housing 2 is stably clamped. Afterwards, it is only necessary to observe whether the housing 2 and the tooling fit together to determine whether the part is qualified. The entire inspection process is simple to operate, significantly shortens the inspection time for a single part, greatly improves inspection efficiency, and can efficiently adapt to the batch production rhythm of the injection molding production line. The positioning component 3 also includes... At the top of the testing platform 1 are six supports 4, each with two locking bolts a5 inside. The supports 4 are connected to the testing platform 1 via the locking bolts a5. Operators can loosen the locking bolts a5 to adjust the position of the supports 4 on the testing platform 1 according to the usage requirements of different sized housing parts 2, thereby changing the distribution of the positioning rods b34 to accommodate the positions of the positioning holes a33 of different housing parts 2. Two supports 4 are respectively located on the left and right sides of the housing 2, and the other four supports 4 are respectively located on the front and rear sides of the housing 2. On the side, the top of the bracket 4 is fixedly connected with a positioning rod b34, and the inside of the housing 2 is provided with a positioning hole a33. The positioning hole a33 is engaged with the corresponding positioning rod b34. The clamping assembly 6 includes two short columns 61 fixedly connected to the top two ends of the detection table 1. The top of each short column 61 is provided with a fixed seat 62. The inside of each fixed seat 62 is rotatably connected with an arc-shaped abutment plate 63. The outside of each fixed seat 62 is rotatably mounted with an electric push rod 64. The piston rod of the electric push rod 64 is rotatably connected to the inner wall of the arc-shaped abutment plate 63.

[0027] Specifically, the clamping assembly 6 also includes two locking bolts b65 threaded to both sides of the fixed base 62. The fixed base 62 and the short column 61 are connected by the locking bolts b65. The locking bolts b65 allow the operator to remove the components from the short column 61 for easy inspection and maintenance. The fixing assembly 7 includes long columns 71 fixedly connected to both ends of the top of the testing table 1. Each long column 71 has a locking seat 72 at its top. A clamping arm 73 is rotatably connected to the outer side of the locking seat 72, and a connecting rod a74 is rotatably connected to the inner side of the clamping arm 73. When fixing the side of the housing 2, the operator can push the clamping arm 73, which in turn pushes the connecting rod a74. When the connecting rod b75 and the connecting rod a74 move to a specific position, external force cannot easily reverse their movement. This achieves "self-locking," maintaining the clamping state without continuous force. The internal part of the snap-fit ​​seat 72 is rotatably connected to the connecting rod b75. The end of the connecting rod a74 away from the clamping arm 73 is rotatably connected to the outer wall of the connecting rod b75. The internal part of the connecting rod b75 is slidably connected to the threaded rod 76. By loosening the nut 77, the height of the abutment post 78 and the clamping range of the clamping arm 73 can be adjusted to adapt to the sides of the housing 2 of different widths. Nuts 77 are threadedly connected to the outer periphery of the threaded rod 76 and on both sides of the connecting rod b75. The bottom of the threaded rod 76 is fixedly connected to the abutment post 78. The internal part of the snap-fit ​​seat 72 is provided with several locking bolts c8. The locking bolts c8 make it easy for the staff to remove most of the components of the fixing assembly 7 from the long column 71. The snap-fit ​​seat 72 and the long column 71 are connected by the locking bolts c8.

[0028] Working principle: First, the operator can use the locking bolt b65 to install the fixing seat 62 and other components onto the short column 61. At the same time, the locking bolt c8 is used to install the snap-fit ​​seat 72 onto the long column 71. Then, according to the usage requirements of different sized housing 2 parts, the locking bolt a5 can be loosened to adjust the position of the bracket 4 on the inspection table 1, thereby changing the distribution of the positioning rods b34 to adapt to the position of the positioning holes a33 of different housing 2. After the preliminary work is completed, the housing 2 to be inspected can be placed on the support frame 37, and the positioning rods a31, positioning pins 32 and positioning rods b34 can be inserted into the corresponding positioning holes b35, positioning grooves 36 and positioning holes a33. Then, through the cooperation of the clamping component 6 and the fixing component 7, the housing 2 can be stably clamped. When it is found that the hole and rod, or the groove and pin do not match, it means that the housing 2 is unqualified. The entire inspection process is simple to operate, the inspection time of a single part is significantly shortened, and the inspection efficiency is greatly improved.

[0029] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing fixture for automotive body parts, comprising a testing table (1), characterized in that: The top of the testing platform (1) is provided with a housing (2), and the top of the testing platform (1) is provided with a clamping component (6) for clamping the housing (2). The top of the testing platform (1) and both sides of the housing (2) are provided with fixing components (7) for clamping the sides of the housing (2). The center of the top of the testing platform (1) is provided with a positioning component (3) to facilitate the testing of the housing (2).

2. The inspection fixture for automotive body parts according to claim 1, characterized in that: The positioning component (3) includes a positioning groove (36) in the middle of the housing (2). Positioning holes b (35) are provided inside the housing (2) and around the positioning groove (36). A support frame (37) is fixedly connected to the top center of the detection platform (1). A positioning column (32) that cooperates with the positioning groove (36) is fixedly connected to the top of the support frame (37). A positioning rod a (31) that cooperates with the positioning hole b (35) is fixedly connected to the top of the support frame (37).

3. The inspection fixture for automotive body parts according to claim 2, characterized in that: The positioning component (3) also includes six brackets (4) set at the top of the testing platform (1). Each bracket (4) has two locking bolts a (5) inside. The brackets (4) are connected to the testing platform (1) by locking bolts a (5). Two of the brackets (4) are set on the left and right sides of the housing (2) respectively, and the other four brackets (4) are set on the front and rear sides of the housing (2) respectively. The top of each bracket (4) is fixedly connected with a positioning rod b (34). The housing (2) has a positioning hole a (33) inside. The positioning hole a (33) is engaged with the corresponding positioning rod b (34).

4. The inspection fixture for automotive body parts according to claim 1, characterized in that: The clamping assembly (6) includes two short columns (61) fixedly connected to the top ends of the detection table (1). Each short column (61) is provided with a fixed seat (62) at its top. An arc-shaped abutment plate (63) is rotatably connected inside the fixed seat (62). An electric push rod (64) is rotatably installed on the outside of the fixed seat (62). The piston rod of the electric push rod (64) is rotatably connected to the inner wall of the arc-shaped abutment plate (63).

5. The inspection fixture for automotive body parts according to claim 4, characterized in that: The clamping assembly (6) also includes two locking bolts b (65) threaded to both sides of the fixing seat (62), and the fixing seat (62) is connected to the short column (61) by the locking bolts b (65).

6. The inspection fixture for automotive body parts according to claim 1, characterized in that: The fixing component (7) includes long columns (71) fixedly connected to both ends of the top of the testing table (1). Each long column (71) is provided with a snap-fit ​​seat (72) at its top. A clamping arm (73) is rotatably connected to the outer side of the snap-fit ​​seat (72). A connecting rod a (74) is rotatably connected to the inside of the clamping arm (73). A connecting rod b (75) is rotatably connected to the inside of the snap-fit ​​seat (72). The end of the connecting rod a (74) away from the clamping arm (73) is rotatably connected to the outer wall of the connecting rod b (75).

7. The inspection fixture for an automotive body part according to claim 6, characterized in that: The connecting rod b (75) is internally slidably connected to a threaded rod (76), and nuts (77) are threadedly connected to the outer periphery of the threaded rod (76) and on both sides of the connecting rod b (75). A clamping post (78) is fixedly connected to the bottom of the threaded rod (76).

8. The inspection fixture for an automotive body part according to claim 6, characterized in that: The snap-fit ​​seat (72) is provided with several locking bolts c (8) inside, and the snap-fit ​​seat (72) is connected to the long column (71) by the locking bolts c (8).

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