Special-shaped detection pin with pressing function

Abstract

The utility model provides a special-shaped detection pin with a pressing function, relates to the technical field of detection pins, and aims to solve the technical problem that a product cannot be effectively fixed when a pressing clamp cannot be arranged due to the fact that a detection pin in the prior art does not have a product fixing function and is limited by space. A special-shaped detection pin with a pressing function comprises a kidney-shaped pin, a handle and a pin sleeve pre-fixed on a detection tool, the kidney-shaped pin comprises a kidney-shaped part used for detecting the aperture of a product and an abutting part used for abutting against the product, the kidney-shaped part is connected to the end face of the bottom end of the abutting part, and the kidney-shaped part is provided with an abutting face used for abutting against the product on the end face of the bottom end of the abutting part. The handle comprises a handheld portion and a rod portion, the top end of the rod portion is connected with the bottom end of the handheld portion, external threads are arranged on the lower portion of the rod portion, a first through hole is formed in the kidney-shaped pin in the axial direction, the rod portion penetrates through the first through hole and is connected with the first threaded hole, and the bottom end of the handheld portion abuts against the top end of the abutting portion.

Description

Technical Field

[0001] The utility model relates to the technical field of detection pins, in particular to a special-shaped detection pin with a pressing function. Background Art

[0002] Waist-shaped detection pins are mainly used to detect the diameter of product holes, as well as technical indicators such as product position and dimensional tolerance. By placing the waist-shaped detection pins into the holes of the products for testing, it is very convenient to determine whether the product size meets the requirements, thereby ensuring quality control and testing in the production process. During the product testing stage, the product needs to be fixed on the inspection fixture, but the waist-shaped detection pins in the prior art can only play a role in dimensional detection and cannot fix the product. Therefore, it is generally necessary to set up a clamp to clamp the product. However, for some inspection fixtures and products, when a clamp cannot be set due to space problems, the requirements for fixing the product cannot be met. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a special-shaped detection pin with a clamping function to solve the technical problem that the detection pin in the prior art does not have the product fixing function and the product cannot be effectively fixed when a clamp cannot be set due to space limitations.

[0004] In order to solve the above technical problems, the utility model provides a special-shaped detection pin with a clamping function, including a waist-shaped pin, a handle and a pin sleeve pre-fixed on a checking fixture, the waist-shaped pin including a waist-shaped portion for detecting the aperture of a product and an abutting portion for abutting against the product, the waist-shaped portion is connected to the bottom end face of the abutting portion, and the waist-shaped portion reserves an abutting surface for abutting against the product on the bottom end face of the abutting portion, the bottom end of the waist-shaped portion abuts against the top end of the pin sleeve, a first threaded hole is axially arranged in the pin sleeve, the handle includes a hand-holding portion and a rod portion, the top end of the rod portion is connected to the bottom end of the hand-holding portion, an external thread is arranged at the lower portion of the rod portion, a first through hole is axially arranged on the waist-shaped pin and the first through hole passes through the abutting portion and the waist-shaped portion, the rod portion passes through the first through hole and is threadedly connected to the first threaded hole, and the bottom end of the hand-holding portion abuts against the top end of the abutting portion.

[0005] After adopting the above structure, the utility model has the following advantages for a special-shaped detection pin with a clamping function: during detection, the product is placed on the inspection fixture, the pin sleeve on the inspection fixture corresponds to the position of the product hole, the waist-shaped portion is inserted into the product hole to detect whether the size of the product hole meets the inspection standard, the rod of the handle is inserted into the first through hole, the rod is rotated so that the lower part of the rod is threadedly connected with the pin sleeve until the bottom end of the waist-shaped portion abuts against the top end of the pin sleeve and the bottom end of the hand-held portion abuts against the top end of the abutting portion, at which time the abutting portion abuts against the surface of the product, and since the waist-shaped pin, the handle and the pin sleeve are fixed, the special-shaped detection pin fixes the product on the inspection fixture, which can not only detect the product hole but also fix the product.

[0006] As an improvement, the waist-shaped pin also includes an insertion part, the top of the insertion part is connected to the bottom end of the waist-shaped part, the top end face of the pin sleeve is provided with a socket, the insertion part is inserted into the socket, the first threaded hole is provided below the socket and the upper end of the first threaded hole is connected to the socket, and the first through hole also passes through the insertion part; adopting this structure, the stability of the connection between the waist-shaped pin and the pin sleeve is improved, and at the same time, the stability of the connection between the various parts of the special-shaped detection pin is improved, thereby improving the fixing effect of the special-shaped detection pin on the product.

[0007] As an improvement, the cross-sections of the insertion portion and the insertion hole are both D-shaped; this structure prevents the waist-shaped pin from rotating during the rotation of the handle.

[0008] As an improvement, a second threaded hole is provided at the lower portion of the first through hole in the insertion portion, and the rod portion is also threadedly connected to the second threaded hole; adopting this structure, the stability of the connection between the handle and the waist-shaped pin is improved, while also improving the stability of the connection between the various parts of the special-shaped detection pin, thereby improving the fixing effect of the special-shaped detection pin on the product.

[0009] As an improvement, the hand-held portion, the rod portion, the abutment portion, the waist-shaped portion, the insertion portion and the pin sleeve are all coaxially arranged; this structure allows the various parts to be evenly distributed in the radial direction and to be evenly stressed, thereby improving the fixing effect of the special-shaped detection pin on the product.

[0010] As an improvement, the cross section of the abutting portion is circular and the diameter thereof is larger than the maximum length of the waist-shaped portion.

[0011] As an improvement, a groove is provided on the outer peripheral wall of the pin sleeve along the axial direction; with this structure, the groove plays a guiding role, which facilitates the installation of the pin sleeve on the inspection fixture and the installation position of the pin sleeve is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the waist-shaped pin in the utility model.

[0015] Figure 4 It is a structural schematic diagram of the handle in the utility model.

[0016] Figure 5 It is a structural schematic diagram of the pin sleeve in the utility model.

[0017] Figure 6 It is a top view of the pin sleeve in the utility model.

[0018] Figure numerals: 1. waist-shaped pin; 11. waist-shaped portion; 12. abutment portion; 121. abutment surface; 13. insertion portion; 2. handle; 21. hand-holding portion; 22. rod portion; 221. external thread; 3. pin sleeve; 31. first threaded hole; 32. insertion hole; 33. groove; 4. first through hole; 41. second threaded hole. DETAILED DESCRIPTION

[0019] The following is a detailed description of a special-shaped detection pin with a pressing function of the utility model in conjunction with the accompanying drawings.

[0020] like Figures 1 to 6 As shown, a special-shaped detection pin with a clamping function comprises a waist-shaped pin 1, a handle 2 and a pin sleeve 3 pre-fixed on a gauge, the waist-shaped pin 1 comprises a waist-shaped portion 11 for detecting the aperture of a product and an abutment portion 12 for abutting against the product, the specific structure and working principle of the waist-shaped portion 11 are prior art and will not be repeated here; the waist-shaped portion 11 is connected to the bottom end face of the abutment portion 12, and the waist-shaped portion 11 reserves an abutment surface 121 for abutting against the product on the bottom end face of the abutment portion 12, that is, the waist-shaped portion 11 does not completely cover the bottom end face of the abutment portion 12, and the uncovered portion of the bottom end face of the abutment portion 12 serves as the abutment surface 121; specifically, in this embodiment, the cross-section of the abutment portion 12 is circular and the diameter is greater than the maximum length of the waist-shaped portion 11.

[0021] like Figure 1 and Figure 2 As shown, the bottom end of the waist-shaped portion 11 abuts against the top end of the pin sleeve 3, the cross-section of the pin sleeve 3 is also circular, and the diameter of the pin sleeve 3 is also greater than the maximum length of the waist-shaped portion 11 but smaller than the diameter of the abutting portion 12; a first threaded hole 31 is axially provided inside the pin sleeve 3, the handle 2 includes a hand-holding portion 21 and a rod portion 22, the top end of the rod portion 22 is connected to the bottom end of the hand-holding portion 21, and an external thread 221 is provided at the lower part of the rod portion 22. The cross-section of the hand-holding portion 21 is also circular and its diameter is smaller than the abutting portion 12; a first through hole 4 is axially provided on the waist-shaped pin 1 and the first through hole 4 passes through the abutting portion 12 and the waist-shaped portion 11, the rod portion 22 passes through the first through hole 4 and is threadedly connected to the first threaded hole 31, and the bottom end of the hand-holding portion 21 abuts against the top end of the abutting portion 12.

[0022] like Figure 1 As shown, the waist-shaped pin 1 also includes an insertion portion 13, the top end of the insertion portion 13 is connected to the bottom end of the waist-shaped portion 11, the top end surface of the pin sleeve 3 is provided with a plug hole 32, the insertion portion 13 is inserted into the plug hole 32, the first threaded hole 31 is provided below the plug hole 32 and the upper end of the first threaded hole 31 is connected to the plug hole 32, and the first through hole 4 also passes through the insertion portion 13; Figure 6As shown, in this embodiment, the cross-sections of the insertion portion 13 and the insertion hole 32 are both D-shaped, while in some other embodiments, protrusions and corresponding grooves can be provided in the insertion portion 13 and the insertion hole 32 to prevent the waist-shaped pin 1 from rotating. In addition, the circular diameter corresponding to the insertion portion 13 in this embodiment is smaller than the minimum length of the waist-shaped portion 11.

[0023] In addition, if Figure 1 and Figure 3 As shown, a second threaded hole 41 is provided at the lower part of the first through hole 4 in the inserting portion 13, and the rod portion 22 is also threadedly connected to the second threaded hole 41. The hand-held portion 21, the rod portion 22, the abutting portion 12, the waist-shaped portion 11, the inserting portion 13 and the pin sleeve 3 in this embodiment are all coaxially arranged, and correspondingly, the first threaded hole 31, the insertion hole 32, the groove 33, the first through hole 4 and the second threaded hole 41 are also coaxially arranged with the above structure.

[0024] like Figure 2 As shown, a groove 33 is axially provided on the outer peripheral wall of the pin sleeve 3, and a protrusion matching the groove 33 is provided on the inspection fixture. The pin sleeve 3 is connected to the inspection fixture with the groove 33 as a reference, and the protrusion is snapped into the groove 33; in this embodiment, the pin sleeve 3 is adhered to the inspection fixture.

[0025] During inspection, the product is placed on the inspection fixture, and the pin sleeve 3 on the inspection fixture corresponds to the position of the product hole. The waist-shaped portion 11 is inserted into the product hole to detect whether the size of the product hole meets the inspection standard. The rod portion 22 of the handle 2 is inserted into the first through hole 4, and the rod portion 22 is rotated by the hand-held portion 21 so that the lower part of the rod portion 22 is threadedly connected with the pin sleeve 3 until the bottom end of the waist-shaped portion 11 abuts against the top end of the pin sleeve 3 and the bottom end of the hand-held portion 21 abuts against the top end of the abutting portion 12. At this time, the abutting portion 12 abuts against the surface of the product. Since the waist-shaped pin 1, the handle 2 and the pin sleeve 3 are fixed, the special-shaped inspection pin fixes the product on the inspection fixture, which can not only detect the product hole but also fix the product. In addition, during installation, the handle 2 can also be connected to the waist-shaped pin 1 first and then connected to the pin sleeve 3 as a whole.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A special-shaped detection pin with a clamping function, characterized in that: The invention comprises a waist-shaped pin (1), a handle (2) and a pin sleeve (3) pre-fixed on a check fixture, wherein the waist-shaped pin (1) comprises a waist-shaped portion (11) for detecting the aperture of a product and an abutting portion (12) for abutting against the product, wherein the waist-shaped portion (11) is connected to the bottom end surface of the abutting portion (12), and the waist-shaped portion (11) leaves an abutting surface (121) for abutting against the product on the bottom end surface of the abutting portion (12), the bottom end of the waist-shaped portion (11) abuts against the top end of the pin sleeve (3), and a first threaded hole (31) is provided in the pin sleeve (3) along the axial direction. The handle (2) comprises a hand-held portion (21) and a rod portion (22); the top end of the rod portion (22) is connected to the bottom end of the hand-held portion (21); the bottom of the rod portion (22) is provided with an external thread (221); a first through hole (4) is axially provided on the waist-shaped pin (1), and the first through hole (4) passes through the abutting portion (12) and the waist-shaped portion (11); the rod portion (22) passes through the first through hole (4) and is threadedly connected to the first threaded hole (31); the bottom end of the hand-held portion (21) abuts against the top end of the abutting portion (12).

2. The special-shaped detection pin with a clamping function according to claim 1, characterized in that: The waist-shaped pin (1) also includes an insertion portion (13), the top end of the insertion portion (13) is connected to the bottom end of the waist-shaped portion (11), the top end surface of the pin sleeve (3) is provided with an insertion hole (32), the insertion portion (13) is inserted into the insertion hole (32), the first threaded hole (31) is provided below the insertion hole (32) and the upper end of the first threaded hole (31) is connected to the insertion hole (32), and the first through hole (4) also passes through the insertion portion (13).

3. The special-shaped detection pin with a clamping function according to claim 2, characterized in that: The insertion portion (13) and the insertion hole (32) both have D-shaped cross sections.

4. The special-shaped detection pin with a pressing function according to claim 2, characterized in that: A second threaded hole (41) is provided at the lower portion of the first through hole (4) in the insertion portion (13), and the rod portion (22) is also threadedly connected to the second threaded hole (41).

5. The special-shaped detection pin with a clamping function according to claim 2, characterized in that: The hand-held portion (21), the rod portion (22), the abutment portion (12), the waist-shaped portion (11), the insertion portion (13) and the pin sleeve (3) are all coaxially arranged.

6. The special-shaped detection pin with a clamping function according to claim 1, characterized in that: The cross section of the abutting portion (12) is circular and its diameter is greater than the maximum length of the waist-shaped portion (11).

7. The special-shaped detection pin with a pressing function according to claim 1, characterized in that: A groove (33) is axially provided on the outer peripheral wall of the pin sleeve (3).

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