Automobile door hinge precision detection tool

Abstract

The utility model discloses an automobile door hinge precision detection tool comprising a bottom plate, one side of the top of the bottom plate is fixedly connected with a supporting seat, the top of the supporting seat is connected with a pedestal, two sides of the top of the pedestal are respectively and movably provided with a clamping plate, and the middle parts of the clamping plates are respectively hinged with a hinge seat. The top of the hinge seat is fixedly connected with the two sides of the bottom end of a movable plate, the middle of the top end of the movable plate is rotationally connected with one end of an adjusting screw, the adjusting screw is connected with the top of a support through a thread structure, and the bottom ends of the support are fixedly connected with the two sides of the top end of a bottom plate respectively; the other side of the top of the bottom plate is fixedly connected with a sliding rail, the sliding rail is slidably connected with a sliding block, the two sides of one end of the sliding block are connected with support detection pins respectively, the other end of the sliding block abuts against the end of a dial indicator, the dial indicator is installed on the top of a supporting plate, and the bottom end of the supporting plate is fixedly connected with the bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to a tooling for testing the precision of automotive door hinges. Background Art

[0002] The door hinge is a component that connects the door to the body of the car. Previously, the inspection of this component was mainly done manually, but this method is labor-intensive and prone to errors. In response, Chinese patent application number CN201922389323.5 discloses a tooling for testing the dimensional accuracy of automotive door hinges, including a base plate, and a guide rail, a bracket inspection pin, a fixing plate zero-contact surface, a quick clamp, a main positioning pin, a secondary positioning pin, a dial indicator, and a slider.

[0003] However, this fixture can only inspect the flat surface of the hinge itself. When the hinge installation part is on an inclined surface, the fixture is not convenient to fix, which affects the inspection accuracy. Therefore, we propose an automotive door hinge accuracy inspection fixture to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a precision testing fixture for automotive door hinges to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision testing fixture for automotive door hinges, comprising a base plate, a support seat fixedly connected to one side of the top of the base plate, a base connected to the top of the support seat, clamping plates movably provided on both sides of the top of the base, hinge seats hinged to the middle of the clamping plates, the top of the hinge seats fixedly connected to both sides of the bottom of a movable plate, one end of an adjusting screw rotatably connected to the middle of the top of the movable plate, the adjusting screw being connected to the top of a bracket via a threaded structure, and the bottom of the bracket being fixedly connected to both sides of the top of the base plate;

[0006] A slide rail is fixedly connected to the top of the base plate on the other side. The slide rail is slidably connected to a slider. A bracket detection pin is connected to both sides of one end of the slider. The other end of the slider abuts against the end of a dial indicator. The dial indicator is installed on the top of the support plate. The bottom end of the support plate is fixedly connected to the base plate.

[0007] Preferably, foot pads are fixedly connected to the four corners of the bottom end of the base plate.

[0008] Preferably, positioning pins are fixedly connected to both sides of the top of the base.

[0009] Preferably, a plug-in block is fixedly connected to the bottom center of the base, and a connecting groove is recessed in the top of the support base. The connecting groove is plugged into the plug-in block, and a positioning bolt is sleeved on one side of the plug-in block. The positioning bolt is connected to one side of the support base through a threaded structure.

[0010] Preferably, the clamps have a U-shaped structure and are arranged parallel to each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the parallel U-shaped clamps can clamp and fix different types of hinges, which facilitates the testing of different types of hinges; the plug-in cooperation between the base and the support seat makes it easy to disassemble and replace the base, and then replace the base with the corresponding support surface according to the type of hinge being tested, which increases the applicability of this application. Attached Figure Description

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

[0013] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0014] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0015] In the diagram: 1. Base plate; 2. Foot pad; 3. Bracket; 4. Adjusting screw; 5. Movable plate; 6. Hinge seat; 7. Clamping plate; 8. Base; 81. Positioning pin; 82. Insertion block; 9. Support seat; 91. Connecting groove; 10. Positioning bolt; 11. Slider; 12. Bracket inspection pin; 13. Dial indicator; 14. Support plate; 15. Slide rail. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example 1

[0018] Reference Figure 1 , 2This is the first embodiment of the present invention. This embodiment provides a precision testing fixture for automotive door hinges, including a base plate 1. A support seat 9 is fixedly connected to one side of the top of the base plate 1. A base 8 is connected to the top of the support seat 9. Clamping plates 7 are movably provided on both sides of the top of the base 8. A hinge seat 6 is hinged to the middle of the clamping plate 7. The top of the hinge seat 6 is fixedly connected to both sides of the bottom of the movable plate 5. One end of an adjusting screw 4 is rotatably connected to the middle of the top of the movable plate 5. The adjusting screw 4 is connected to the top of the bracket 3 through a threaded structure. The bottom of the bracket 3 is fixedly connected to both sides of the top of the base plate 1.

[0019] A slide rail 15 is fixedly connected to the top of the base plate 1 on the other side. The slide rail 15 is slidably connected to the slider 11. A bracket detection pin 12 is connected to both sides of one end of the slider 11. The other end of the slider 11 abuts against the end of the dial indicator 13. The dial indicator 13 is installed on the top of the support plate 14. The bottom end of the support plate 14 is fixedly connected to the base plate 1.

[0020] Place the hinge at a 90-degree angle onto the base 8. The positioning pin 81 fixed on the base 8 engages with the hinge's mounting hole, ensuring a more precise hinge positioning. Select the appropriate base 8 based on the hinge's mounting plate angle. When disassembling the base 8, loosen the positioning bolt 10 to disengage it from the insertion hole of the insertion block 82, allowing the base 8 to be removed. Replace the base 8 with the corresponding one and reinsert it onto the support base 9. Then, reinstall the positioning bolt 10 to limit and fix the base 8. Next, rotate the adjusting screw 4 while manually holding the movable plate 5 in place, thus adjusting the threaded structure. The lower movable plate 5 moves downward, and after the movable plate 5 moves downward, the hinge seat 6 moves downward. The hinge seat 6 moves the clamping plate 7 downward simultaneously. After the clamping plate 7 contacts the hinge fixing plate, it cooperates with the base 8 to clamp and fix the hinge fixing plate. At the same time, the clamping plate 7 passes through the middle hinge seat 6, which can clamp and fix the flat hinge fixing plate or the inclined hinge fixing plate. The bracket detection pin 12 is inserted into the two detection holes on the slider 11. Whether the detection section can pass smoothly through the hinge bracket mounting hole determines whether the hole position in the Z direction is out of tolerance. The measuring head of the dial indicator 13 contacts the slider 11. The reading can determine whether the hinge in the Y direction is out of tolerance.

[0021] Example 2

[0022] Reference Figure 1-3 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. Specifically, foot pads 2 are fixedly connected to the four corners of the bottom end of the base plate 1. The foot pads 2 are set to avoid accidental displacement during the testing process.

[0023] Specifically, positioning pins 81 are fixedly connected to the top two sides of the base 8. The positioning pins 81 are designed to engage with the mounting holes of the hinge, ensuring the positional accuracy of the hinge.

[0024] Specifically, a plug-in block 82 is fixedly connected to the bottom center of the base 8, and a connecting groove 91 is recessed in the top of the support base 9. The connecting groove 91 is plugged into the plug-in block 82. One side of the plug-in block 82 is fitted with one side of the positioning bolt 10, and the positioning bolt 10 is connected to one side of the support base 9 through a threaded structure. The corresponding base 8 is selected according to the angle model of the hinge's fixing plate. When the base 8 needs to be disassembled, the positioning bolt 10 is loosened to disengage from the plug-in hole of the plug-in block 82, allowing the base 8 to be removed. After replacing the corresponding base 8, it is reinserted onto the support base 9, and the positioning bolt 10 is installed again to limit and fix the base 8.

[0025] Specifically, the clamping plates 7 have a U-shaped structure and are arranged parallel to each other. The parallel arrangement allows the clamping plates 7 to clamp and fix both sides of the hinge fixing plate.

[0026] Example 3

[0027] Reference Figure 1-3 This is the third embodiment of the present invention. Based on the previous two embodiments, in use, the hinge is placed on the base 8 at a 90-degree angle. The positioning pin 81 fixed on the base 8 cooperates with the hinge's mounting hole, making the hinge's fixed position more precise. Simultaneously, a corresponding base 8 is selected according to the angle and model of the hinge's fixing plate. When the base 8 needs to be disassembled, the positioning bolt 10 is loosened, disengaging it from the insertion hole of the insertion block 82, allowing the base 8 to be removed. After replacing the corresponding base 8, it is reinserted onto the support base 9, and the positioning bolt 10 is installed again to limit and fix the base 8. Then, the adjusting screw 4 is rotated, and the position is manually adjusted. Keep the movable plate 5 fixed, and then drive the movable plate 5 to move down under the threaded structure. After the movable plate 5 moves down, it drives the hinge seat 6 to move down. The hinge seat 6 drives the clamping plate 7 to move down synchronously. After the clamping plate 7 abuts against the hinge fixing plate, it cooperates with the base 8 to clamp and fix the hinge fixing plate. At the same time, the clamping plate 7 passes through the middle hinge seat 6, and can clamp and fix the flat hinge fixing plate or the inclined hinge fixing plate. The bracket detection pin 12 is inserted into the two detection holes on the slider 11. Whether the detection section can pass smoothly through the hinge bracket mounting hole determines whether the hole position in the Z direction is out of tolerance. The measuring head of the dial indicator 13 contacts the slider 11. By reading the value, it can be determined whether the hinge in the Y direction is out of tolerance.

[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision testing fixture for automotive door hinges, comprising a base plate (1), characterized in that: On one side of the top of the bottom plate (1), a support seat (9) is fixedly connected. The top of the support seat (9) is connected with a base (8). On both sides of the top of the base (8), clamping plates (7) are respectively movably arranged. In the middle of the clamping plates (7), hinge seats (6) are respectively hinged. The top of the hinge seats (6) is fixedly connected to both sides of the bottom end of a movable plate (5). In the middle of the top end of the movable plate (5), one end of an adjusting screw rod (4) is rotatably connected. The adjusting screw rod (4) is connected to the top of a bracket (3) through a threaded structure. The bottom ends of the brackets (3) are respectively fixedly connected to both sides of the top end of the bottom plate (1). On the other side of the top of the bottom plate (1), a slide rail (15) is fixedly connected. The slide rail (15) is slidably connected with a slider (11). On both sides of one end of the slider (11), bracket detection pins (12) are respectively connected. The other end of the slider (11) abuts against the end of a dial indicator (13). The dial indicator (13) is installed on the top of a support plate (14). The bottom end of the support plate (14) is fixedly connected to the bottom plate (1).

2. The automotive door hinge precision testing fixture according to claim 1, characterized in that: At the four corners of the bottom end of the bottom plate (1), foot pads (2) are respectively fixedly connected.

3. The automotive door hinge precision testing fixture according to claim 1, characterized in that: On both sides of the top of the base (8), positioning pins (81) are respectively fixedly connected.

4. The automotive door hinge precision testing fixture according to claim 1, characterized in that: In the middle of the bottom end of the base (8), a plug-in block (82) is fixedly connected. In the top of the support seat (9), a connecting groove (91) is concavely arranged. The connecting groove (91) is in plug-in fit with the plug-in block (82). One side of the plug-in block (82) is sleeved with one side of a positioning bolt (10). The positioning bolt (10) is connected to one side of the support seat (9) through a threaded structure.

5. The precision testing fixture for automotive door hinges according to claim 1, characterized in that: The clamping plates (7) are of a U-shaped structure and are arranged in parallel with each other.

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