A detection tool for detecting a hole clamping groove in a square plate

Abstract

The utility model belongs to the field of detection frock, specifically disclose a kind of detection frock for detecting square tray inner hole clamping slot, including square tray and measuring concrete, square tray including first shaft, square plate and second shaft;The centre hole in the middle of square tray is equipped with positioning groove and clamping slot on the inner wall of centre hole of first shaft end;The end face of first shaft is locating surface A;The measuring concrete includes measuring head and measuring stand;The measuring head is cylinder, and the outer side wall of measuring head is equipped with locating boss and boss A, the locating boss is compatible with positioning groove, and the boss A is compatible with clamping slot;The measuring stand is cylinder, and the upper end surface of measuring stand is locating surface B;The centre hole of square tray is buckled on measuring head, and locating surface A of square tray 1 is in contact with locating surface B;The detection frock is simple in structure, the position degree and depth of locating groove and clamping slot of square tray can be quickly detected, the detection efficiency is improved, and production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of testing tooling, specifically relating to a testing tooling for testing the inner hole groove of a square plate. Background Technology

[0002] The square plate is an important connecting part, and its production process has high requirements. The positioning groove and slot inside the center hole of the square plate have high requirements, and the main control dimensions of the positioning groove and slot are the positional accuracy and depth of the groove. In the existing technology, depth measurement is generally done using a depth gauge, while positional accuracy measurement requires special tools, which takes a long time and is inefficient. There is an urgent need for a method that can solve this problem. Utility Model Content

[0003] To address the problems existing in the background art, this utility model provides a testing fixture for detecting the inner hole groove of a square plate.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a testing fixture for detecting the slot of an inner hole in a square plate, comprising a square plate and a measuring fixture, wherein the square plate comprises a first shaft, a square plate, and a second shaft; the square plate has a central hole in its center, and the inner wall of the central hole at the end of the first shaft has a positioning groove and a slot; the end face of the first shaft is a positioning surface A; the measuring fixture comprises a measuring head and a measuring tool holder; the measuring head is cylindrical, and the outer wall of the measuring head has a positioning boss and a boss A, wherein the positioning boss is adapted to the positioning groove, and the boss A is adapted to the slot; the measuring tool holder is cylindrical, and the upper end face of the measuring tool holder is a positioning surface B; the central hole of the square plate is fastened to the measuring head, and the positioning surface A of the square plate 1 is in contact with the positioning surface B.

[0005] The outer diameter of the measuring head is adapted to the central hole.

[0006] The height of the upper surface of the positioning boss and the positioning surface B is equal to the depth of the positioning groove, and the height of the upper surface of the boss A and the positioning surface B is equal to the depth of the slot.

[0007] The measuring tool holder is a cylinder, and the outer diameter of the measuring tool holder is not less than the outer diameter of the first shaft.

[0008] A ventilation groove is provided at the junction of the positioning boss and boss A with the outer wall of the measuring head.

[0009] A venting groove is provided at the junction of the measuring head and the measuring tool holder.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a testing fixture for detecting the inner hole groove of a square plate. The testing fixture has a simple structure and can quickly detect the position and depth of the positioning groove and groove of the square plate, thereby improving the testing efficiency and reducing the production cost. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention.

[0012] Figure 2 This is a schematic diagram of a square plate.

[0013] Figure 3 This is a schematic diagram of a square plate.

[0014] Figure 4 A detailed schematic diagram is provided.

[0015] Figure 5 A detailed schematic diagram is provided.

[0016] In the diagram: 1. Square plate, 2. Measuring tool, 11. First axis, 12. Square plate, 13. Second axis, 14. Center hole, 15. Positioning groove, 16. Slot, 17. Positioning surface A, 21. Measuring head, 22. Measuring tool holder, 23. Positioning boss, 24. Boss A, 25. Vent groove, 26. Vent ring groove, 27. Positioning surface B. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] The following detailed description of the specific embodiments of this utility model is provided in conjunction with the accompanying drawings: A testing fixture for detecting the slot of an inner hole in a square plate includes a square plate 1 and a measuring fixture 2. The square plate 1 includes a first shaft 11, a square plate 12, and a second shaft 13. A central hole 14 is provided in the middle of the square plate 1, and a positioning groove 15 and a slot 16 are provided on the inner wall of the central hole 14 at the end of the first shaft 11. The end face of the first shaft 11 is a positioning surface A17. The measuring fixture 2 includes a measuring head 21 and a measuring tool seat 22. The measuring head 21 is cylindrical, and the outer diameter of the measuring head 21 is adapted to the central hole 14. The outer wall of the measuring head 21 is provided with a positioning boss 23 and a boss A24. The positioning boss 23 is adapted to the positioning groove 15, and the boss A24 is adapted to the slot 16. A vent groove 25 is provided at the junction of the positioning boss 23 and the boss A24 with the outer wall of the measuring head 21. The function of the vent groove 25 is to facilitate the discharge of air or liquid between the center hole 14 of the square plate 1 and the measuring head 21. The height of the upper end face of the positioning boss 23 and the positioning surface B27 is equal to the depth of the positioning groove 15, and the height of the upper end face of the boss A24 and the positioning surface B27 is equal to the depth of the slot 16. The measuring tool holder 22 is cylindrical, and its outer diameter is not less than that of the first shaft 11. The upper end face of the measuring tool holder 22 is the positioning surface B27. A venting groove 26 is provided at the junction of the measuring head 21 and the measuring tool holder 22. The function of the venting groove 26 is to facilitate the discharge of air or liquid between the center hole 14 of the square plate 1 and the measuring head 21. The center hole 14 of the square plate 1 is fastened to the measuring head 21, and the positioning surface A17 of the square plate 1 is in contact with the positioning surface B27. In actual use, if the center hole 14 of the square plate 1 cannot be fastened to the measuring head 21, it indicates that there is a problem with the positioning groove and the slot. If the positional accuracy is not up to standard, the square plate 1 workpiece is deemed unqualified. When the center hole 14 of the square plate 1 is fastened onto the measuring head 21, if the positioning surface A17 and the positioning surface B27 are in contact without any gap, the square plate 1 workpiece is deemed qualified. If there is a certain gap between the positioning surface A17 and the positioning surface B27, a feeler gauge is used for inspection. If the gap between the positioning surface A17 and the positioning surface B27 is less than the design tolerance, the square plate 1 workpiece is deemed qualified. Conversely, if the gap between the positioning surface A17 and the positioning surface B27 is greater than the design tolerance, the square plate 1 workpiece is deemed unqualified.

[0019] The usage process of this utility model is as follows: First, fix the measuring body 2 on the testing table; then fasten the center hole 14 of the square plate 1 to be tested onto the measuring head 21; when fastening, the positioning boss 23 should be aligned with the positioning groove 15, and the boss A24 should be aligned with the slot 16; if the center hole 14 of the square plate 1 cannot be fastened onto the measuring head 21, it indicates that the positional accuracy between the positioning groove and the slot is unqualified, and the square plate 1 workpiece can be judged as unqualified; after the center hole 14 of the square plate 1 is fastened onto the measuring head 21, if the positioning surface A17 and the positioning surface B27 are in contact and not If there is a gap, the square plate 1 workpiece is considered qualified. If there is a certain gap between the positioning surface A17 and the positioning surface B27, a feeler gauge is used for inspection. If the gap between the positioning surface A17 and the positioning surface B27 is less than the design tolerance, the square plate 1 workpiece is considered qualified. Conversely, if the gap between the positioning surface A17 and the positioning surface B27 is greater than the design tolerance, the square plate 1 workpiece is considered unqualified. After the inspection is completed, qualified square plate 1 workpieces are placed in the qualified product area, and unqualified square plate 1 workpieces are sent to the repair station for repair or directly scrapped.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0021] The parts of this utility model not described in detail are existing technologies.

Claims

1. A testing fixture for detecting the groove in the inner hole of a square plate, comprising a square plate (1) and a measuring device (2), characterized in that: The square plate (1) includes a first shaft (11), a square plate (12), and a second shaft (13); the square plate (1) has a central hole (14) in the middle, and the inner wall of the central hole (14) at the end of the first shaft (11) has a positioning groove (15) and a slot (16); the end face of the first shaft (11) is the positioning surface A (17); the measuring device (2) includes a measuring head (21) and a measuring tool seat (22); the measuring head (21) is a cylinder, and the measuring head ( The outer wall of 21) is provided with a positioning boss (23) and a boss A (24). The positioning boss (23) is adapted to the positioning groove (15), and the boss A (24) is adapted to the slot (16). The measuring tool seat (22) is a cylinder, and the upper end surface of the measuring tool seat (22) is the positioning surface B (27). The center hole (14) of the square plate (1) is fastened to the measuring head (21), and the positioning surface A (17) of the square plate (1) is in contact with the positioning surface B (27).

2. The inspection fixture for inspecting the inner hole groove of a square plate according to claim 1, characterized in that: The outer diameter of the measuring head (21) is adapted to the central hole (14).

3. The inspection fixture for inspecting the inner hole groove of a square plate according to claim 1, characterized in that: The height of the upper surface of the positioning boss (23) and the positioning surface B (27) is equal to the depth of the positioning groove (15), and the height of the upper surface of the boss A (24) and the positioning surface B (27) is equal to the depth of the slot (16).

4. The inspection fixture for inspecting the inner hole groove of a square plate according to claim 1, characterized in that: The measuring tool holder (22) is a cylinder, and the outer diameter of the measuring tool holder (22) is not less than the outer diameter of the first shaft (11).

5. The inspection fixture for inspecting the inner hole groove of a square plate according to claim 1, characterized in that: Ventilation grooves (25) are provided at the junction of the positioning boss (23) and boss A (24) with the outer wall of the measuring head (21).

6. The inspection fixture for inspecting the inner hole groove of a square plate according to claim 1, characterized in that: A ventilation groove (26) is provided at the junction of the measuring head (21) and the measuring tool holder (22).

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