Surface profile tolerance detection mechanism for sunken position

Abstract

The utility model relates to the technical field of detection devices, in particular to a surface profile tolerance detection mechanism for a sunken position, which comprises a base, a pin bush, a bolt piece, a fixed detection block and a movable detection block, a product profiling cavity is concavely arranged on the top surface of the base, an embedding hole is concavely arranged on the bottom wall of the product profiling cavity, the pin bush is embedded in the embedding hole, and the bolt piece is inserted into the embedding hole. The bolt piece comprises a bolt section, a detection limiting section, a movable section and a fixed section which are coaxially connected in sequence, the bolt section is detachably inserted into the pin sleeve, the detection limiting section is used for abutting against the top end face of the pin sleeve, the movable section is sleeved with the movable detection block in a lifting mode, and the fixed detection block is fixedly arranged on the fixed section; the diameter of the plug pin section and the diameter of the movable section are both smaller than the diameter of the detection limiting section, and the top end face of the pin sleeve is flush with the bottom wall of the product profiling cavity. The tool is simple in structure, low in cost, convenient to operate, high in detection efficiency, capable of detecting the surface profile tolerance of the sunken position and also capable of detecting the center hole, and dual-purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a surface profile detection mechanism for a concave position. Background Art

[0002] Due to space limitations, it is difficult to directly detect the surface contour of some products with recessed positions using conventional surface contour instruments. Among existing patents, a Chinese patent document with application number 201320151457.3 discloses a detection pin and a detection device for detecting surface contour. The detection pin includes a handle, a detection part and a guide part. The handle is connected to the detection part, and the detection part is connected to the guide part. A workbench is provided at the connection between the handle and the detection part. Although the patent document solves the problem of detecting the accuracy of the surface when detecting the hole position by providing a workbench on the detection pin, reduces the manufacturing cost, and improves the detection efficiency, it is still impossible to detect the surface contour of the recessed position. Therefore, the defect is very obvious, and it is urgent to provide a solution. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a surface profile detection mechanism for a concave position.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A surface contour detection mechanism for a recessed position comprises a base, a pin sleeve, a latch member, a fixed detection block and a movable detection block, wherein a product profiling cavity is recessed on the top surface of the base, an embedding hole is recessed on the bottom wall of the product profiling cavity, the pin sleeve is embedded in the embedding hole, the latch member comprises a latch section, a detection limit section, a movable section and a fixed section which are coaxially connected in sequence, the latch section is detachably inserted in the pin sleeve, the detection limit section is used to abut against the top end surface of the pin sleeve, the movable detection block is lifted and sleeved outside the movable section, and the fixed detection block is fixedly arranged on the fixed section; the diameter of the latch section and the diameter of the movable section are both smaller than the diameter of the detection limit section, and the top end surface of the pin sleeve is flush with the bottom wall of the product profiling cavity.

[0006] Furthermore, the diameter of the fixed section is smaller than the diameter of the movable section.

[0007] Furthermore, the fixed section is provided with a handle, and the fixed detection block is clamped between the handle and the movable section.

[0008] Furthermore, the handle is provided with an insertion hole, and the fixed section is inserted into the insertion hole.

[0009] Furthermore, the embedding hole is a T-shaped hole, and the cross-sectional shape of the pin sleeve is T-shaped.

[0010] Furthermore, the bottom end of the latch section is provided with an inverted cone surface.

[0011] The beneficial effects of the utility model are as follows: in actual application, the product with the recessed position is fixed and located in the product profiling cavity, the distance between the product and the product profiling cavity is set, and then the latch section of the latch member is inserted into the pin sleeve. During this process, the detection limit section detects the center hole in the recessed position of the product, and the detection limit section passes through the center hole, proving that the center hole of the recessed position of the product is qualified. After passing through the center hole, the detection limit section contacts the top surface of the pin sleeve, and then the movable detection block is moved downward along the movable section until the movable detection block contacts the recessed position of the product. At this time, a gauge is used to measure the gap size between the bottom surface of the fixed detection block and the top surface of the movable detection block, and the gap size is used to reflect the surface contour of the recessed position. The utility model has a simple structure, low cost, convenient operation, and high detection efficiency. It can not only detect the surface contour of the recessed position, but also detect the center hole, and it is a dual purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the utility model and product.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model and product.

[0014] Description of reference numerals:

[0015] 1. Base; 2. Pin sleeve; 3. Latch piece; 4. Fixed detection block; 5. Movable detection block; 6. Product profiling cavity; 7. Mounting hole; 8. Latch section; 9. Detection limit section; 10. Movable section; 11. Fixed section; 12. Handle; 13. Mounting hole; 14. Inverted cone; 15. Product; 16. Center hole. DETAILED DESCRIPTION

[0016] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0017] like Figure 1 and Figure 2As shown, the utility model provides a surface contour detection mechanism for a recessed position, which includes a base 1, a pin sleeve 2, a latch member 3, a fixed detection block 4 and a movable detection block 5. The top surface of the base 1 is recessed with a product profiling cavity 6, the bottom wall of the product profiling cavity 6 is recessed with an embedding hole 7, the pin sleeve 2 is embedded in the embedding hole 7, the latch member 3 includes a latch section 8, a detection limit section 9, a movable section 10 and a fixed section 11 which are coaxially connected in sequence, the latch section 8 is detachably inserted in the pin sleeve 2, the detection limit section 9 is used to contact with the top surface of the pin sleeve 2, the movable detection block 5 is lifted and sleeved outside the movable section 10, and the fixed detection block 4 is fixedly arranged on the fixed section 11; the diameter of the latch section 8 and the diameter of the movable section 10 are both smaller than the diameter of the detection limit section 9, and the top surface of the pin sleeve 2 is flush with the bottom wall of the product profiling cavity 6.

[0018] In actual application, the product 15 with the recessed position is fixed and located in the product profiling cavity 6, and the product 15 is spaced apart from the product profiling cavity 6. Then the latch section 8 of the latch member 3 is inserted into the pin sleeve 2. During this process, the detection limit section 9 detects the center hole 16 in the recessed position of the product 15. The detection limit section 9 passes through the center hole 16, proving that the center hole 16 of the recessed position of the product 15 is qualified. After passing through the center hole 16, the detection limit section 9 contacts the top surface of the pin sleeve 2. Then the movable detection block 5 is moved downward along the movable section 10 until the movable detection block 5 contacts the recessed position of the product 15. At this time, a gauge is used to measure the gap size between the bottom surface of the fixed detection block 4 and the top surface of the movable detection block 5. The gap size is used to reflect the surface contour of the recessed position (for example: when the gap size is too large, the surface contour of the recessed position is concave downward; when the gap size is too small, the surface contour of the recessed position is arched upward). The utility model has the advantages of simple structure, low cost, convenient operation and high detection efficiency, and can not only detect the surface contour of the concave part of the product, but also detect the center hole 16 of the product, thus achieving two purposes.

[0019] In this embodiment, the diameter of the fixed section 11 is smaller than the diameter of the movable section 10. This structural design facilitates the fixing of the fixed detection block 4.

[0020] In this embodiment, the fixed section 11 is provided with a handle 12, and the fixed detection block 4 is sandwiched between the handle 12 and the movable section 10. This structural design can not only fix the fixed detection block 4, but also provide the handle 12 for the detection personnel to hold, and also facilitate the detection personnel to perform the detection operation.

[0021] In this embodiment, the handle 12 is provided with an insertion hole 13, and the fixed section 11 is inserted into the insertion hole 13. This structural design facilitates the assembly and disassembly of the handle 12, the fixed detection block 4 and the fixed section 11.

[0022] In this embodiment, the mounting hole 7 is a T-shaped hole, and the cross-section of the pin sleeve 2 is T-shaped. This structural design makes the pin sleeve 2 and the base 1 compact, and improves the position accuracy and stability of the pin sleeve 2 installed in the mounting hole 7.

[0023] In this embodiment, the bottom end of the latch section 8 is provided with an inverted cone 14. The provision of the inverted cone 14 facilitates the insertion of the latch section 8 into the pin sleeve 2.

[0024] Specifically, the peripheral side of the movable section 10 is provided with an external thread, and the movable detection block 5 is threadedly connected to the external thread. This structural design not only enables the movable detection block 5 to move along the movable section 10, but also improves the stability of the movable detection block 5.

[0025] All technical features in this embodiment can be freely combined according to actual needs.

[0026] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A concave surface profile detection mechanism, characterized in that: The invention comprises a base (1), a pin sleeve (2), a latch member (3), a fixed detection block (4) and a movable detection block (5); the top surface of the base (1) is concavely provided with a product profiling cavity (6); the bottom wall of the product profiling cavity (6) is concavely provided with an embedding hole (7); the pin sleeve (2) is embedded in the embedding hole (7); the latch member (3) comprises a latch section (8), a detection limit section (9), a movable section (10) and a fixed section (11) which are coaxially connected in sequence; the latch section (8) is detachably inserted into the pin sleeve (2); the detection limit section (9) is used to abut against the top surface of the pin sleeve (2); the movable detection block (5) is lifted and sheathed outside the movable section (10); and the fixed detection block (4) is fixedly arranged on the fixed section (11); the diameters of the latch section (8) and the movable section (10) are both smaller than the diameter of the detection limit section (9); and the top surface of the pin sleeve (2) is flush with the bottom wall of the product profiling cavity (6).

2. The surface profile detection mechanism of a concave position according to claim 1, characterized in that: The diameter of the fixed section (11) is smaller than the diameter of the movable section (10).

3. The surface profile detection mechanism of a concave position according to claim 2, characterized in that: The fixed section (11) is provided with a handle (12), and the fixed detection block (4) is clamped between the handle (12) and the movable section (10).

4. The surface profile detection mechanism of a concave position according to claim 3, characterized in that: The handle (12) is provided with an insertion hole (13), and the fixing section (11) is inserted into the insertion hole (13).

5. The surface profile detection mechanism of a concave position according to claim 1, characterized in that: The embedding hole (7) is a T-shaped hole, and the cross-sectional shape of the pin sleeve (2) is T-shaped.

6. The surface profile detection mechanism of a concave position according to claim 1, characterized in that: The bottom end of the latch section (8) is provided with an inverted cone surface (14).

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