Detection tool for detecting torsion angle of guide arm
By designing a test tool for detecting the torsion angle of the guide arm, using the relative position measurement of the positioning pin and the blind hole, the problem of torsion angle detection of the guide arm is solved, reducing the generation of waste and improving production efficiency.
Patent Information
- Application Number
- CN202420961902.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing inspection tools cannot effectively detect the torsion angle of the guide arm, resulting in the torsional deviation of the products that cannot be loaded normally, resulting in waste and waste.
A test tool including a connecting plate, a positioning pin shaft, a side clamp, a transverse positioning support arm and a vertical positioning support arm is designed. By measuring the relative positioning pin and a blind hole, it is determined whether the torsion angle of the guide arm is qualified and qualified. Then drill the CNC machine tool directly, otherwise manual correction will be performed.
Effective detection of the torsion angle of the guide arm is achieved, reducing the generation of waste products, improving production efficiency and product qualification rate.
Smart Images
Figure CN222317937U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the field of inspection tools, in particular to an inspection tool for detecting whether the torsion angle of a guide arm with a torsion angle is qualified. Background technology:
[0002] The guide arm with a torsion angle is generally installed on a tractor, such as a Stania tractor and a FAW Jiefang tractor.
[0003] At present, there is no inspection tool for detecting the torsion angle of the guide arm. After the guide arm is produced, the tail hole is drilled directly by the CNC machine tool. If the torsion angle is qualified, the tail hole drilled by the CNC machine tool according to the predetermined program is on the center line of the guide arm. If the torsion is offset, the tail hole drilled according to the predetermined program is not on the center line of the guide arm, resulting in failure to load the vehicle, resulting in scrap and waste. Summary of the invention:
[0004] The technical problem to be solved by the utility model is to provide a checking fixture for detecting the torsion angle of a guide arm, which can detect whether the torsion angle of the guide arm is qualified. Qualified products can be sent to a CNC machine tool for drilling a tail hole, and unqualified products can be manually corrected before drilling a tail hole, thereby reducing the generation of waste products.
[0005] The purpose of the utility model is achieved as follows: it includes a connecting plate, the upper end of the connecting plate is fixed with a positioning pin extending forward, and the lower end of the connecting plate is fixed to the left end of the horizontal positioning ruler;
[0006] It also includes a centering plate, the front and rear ends of the centering plate are fixed with downwardly extending side clamps, wherein the side clamp located on the front side is provided with a tightening screw, the right end of the horizontal positioning ruler is fixed to the side clamp located on the rear side, and a positioning pin is fixed to the side clamp located on the right side of the horizontal positioning ruler; the left end of the positioning pin is in contact with the right end of the horizontal positioning ruler.
[0007] A horizontal positioning arm extending to the right is fixed to the centering plate, a vertical positioning arm extending forward is fixed to the right end of the horizontal positioning arm, a positioning sleeve is fixed on the vertical positioning arm, and the upper end of the positioning pin is fixed in the positioning sleeve.
[0008] The left end of the positioning pin on the side clamping plate and the center of the blind hole of the workpiece are on the same radial straight line (in the width direction of the workpiece);
[0009] The axial straight-line distance between the left edge of the locating pin and the center of the locating needle circle (in the length direction of the workpiece) is 340 mm ± 1 mm;
[0010] The radial straight-line distance between the locating pin and the blind hole (in the workpiece width direction) is 74.5 mm ± 1 mm; that is, the straight-line distance between the axial center line of the blind hole and the axial center line of the locating pin is 74.5 mm ± 1 mm.
[0011] The utility model has the advantages that it can detect whether the torsion angle of the guide arm is qualified, and the qualified products can be directly sent to the CNC machine tool for drilling the tail hole, and the unqualified products can be manually corrected before drilling the tail hole, thereby reducing the generation of waste products.
[0012] The device has simple and reasonable structure, convenient operation, stable precision and good practicability. Description of the drawings:
[0013] Figure 1 It is a main structural schematic diagram of the utility model;
[0014] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0015] Figure 3 This is the front view of the utility model in use;
[0016] Figure 4 This is a top view of the utility model in use;
[0017] Figure 5 is a schematic diagram of a guide arm with a twist angle. Specific implementation method:
[0018] Combine the following Figure 1-5 Further explain the utility model;
[0019] It comprises a connecting plate 1, a positioning pin shaft 2 extending forward is fixed on the upper end of the connecting plate, and the lower end of the connecting plate is fixed on the left end of a horizontal positioning ruler 3;
[0020] It also includes a centering plate 4, the front and rear ends of the centering plate are fixed with downwardly extending side clamps 5, wherein the side clamp located on the front side is provided with a tightening screw 6, the right end of the horizontal positioning ruler is fixed to the side clamp located on the rear side, and the side clamp located on the right side of the horizontal positioning ruler is fixed with a positioning pin 7; the left end of the positioning pin is in contact with the right end of the horizontal positioning ruler.
[0021] A horizontal positioning arm 8 extending to the right is fixed to the centering plate, a vertical positioning arm 9 extending forward is fixed to the right end of the horizontal positioning arm, a positioning sleeve 10 is fixed on the vertical positioning arm, and the upper end of the positioning pin 11 is fixed in the positioning sleeve.
[0022] The left end of the positioning pin on the side clamping plate and the center of the blind hole of the workpiece are on the same radial straight line (in the width direction of the workpiece);
[0023] The axial straight-line distance between the left edge of the locating pin and the center of the locating needle circle (in the length direction of the workpiece) is 340 mm ± 1 mm;
[0024] The radial straight-line distance between the locating pin and the blind hole (in the workpiece width direction) is 74.5 mm ± 1 mm; that is, the straight-line distance between the axial center line of the blind hole and the axial center line of the locating pin is 74.5 mm ± 1 mm.
[0025] When in use, insert the positioning pin on the upper end of the connecting plate into the rolled ear hole of the workpiece 12, clamp the centering plate on the workpiece, and tighten the tightening screw; the length of the horizontal positioning ruler is the distance between the center of the rolled ear hole and the center of the blind hole, and the intersection of the center line of the workpiece width direction at the rear end of the horizontal positioning ruler and the center line of the length direction of the lower surface of the workpiece is the position of the blind hole.
[0026] The position where the positioning pin contacts the workpiece is the position of the tail hole. The total width of the workpiece at this position is 70mm. Then use a ruler to measure the distance between this position and one side edge of the workpiece in the width direction. If the distance is within 35mm±3mm, it is a qualified product.
[0027] The above are only preferred implementations of the utility model, and do not limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.
Claims
1. A fixture for detecting the torsion angle of a guide arm, characterized by: It comprises a connecting plate (1), the upper end of which is fixed with a positioning pin shaft (2) extending forward, and the lower end of which is fixed to the left end of a horizontal positioning ruler (3); It also includes a centering plate (4), the front and rear ends of which are fixed with side clamps (5) extending downward, wherein the side clamp located at the front side is provided with a tightening screw (6), the right end of the horizontal positioning ruler is fixed to the side clamp located at the rear side, and a positioning pin (7) is fixed to the side clamp located on the right side of the horizontal positioning ruler; the left end of the positioning pin is in contact with the right end of the horizontal positioning ruler; A horizontal positioning arm (8) extending to the right is fixed to the centering plate, a vertical positioning arm (9) extending forward is fixed to the right end of the horizontal positioning arm, a positioning sleeve (10) is fixed on the vertical positioning arm, and the upper end of the positioning pin (11) is fixed in the positioning sleeve.
2. The inspection tool for detecting the torsion angle of the guide arm according to claim 1, characterized in that: The left end of the positioning pin on the clamping plate and the center of the blind hole of the workpiece are on the same radial straight line; The axial straight-line distance between the left edge of the positioning pin and the center of the positioning needle circle is 340 mm ± 1 mm; The radial straight-line distance between the positioning pin and the blind hole is 74.5 mm ± 1 mm; that is, the straight-line distance between the axial center line of the blind hole and the axial center line of the positioning pin is 74.5 mm ± 1 mm.