A detection tool

Abstract

The present invention relates to a detection tool, including a base, a crimping part, a positioning guide component and an elastic component. The positioning guide component is fixed on the base, the positioning guide component has a guide part extending in the vertical direction, the bottom end of the guide part has a first step surface arranged upward in the vertical direction, one end of the elastic component is fixed on the base, the other end of the elastic component is extended upward in the vertical direction, the workpiece has a main body and a flange part located below the main body, the middle part of the main body is provided with a first center hole extending in the vertical direction, a circle to be measured is formed on the first center hole, the diameter of the circle to be measured is equal to the diameter of the first step surface, the workpiece is sleeved on the guide part through the first center hole, the bottom end of the flange part abuts against the other end of the elastic component, the crimping part is sleeved on the guide part, and the bottom of the crimping part abuts against the top of the main body. In this way, the problem of poor measurement accuracy of the needle roller retaining ring caused by the existing conventional detection method is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection tooling, and in particular to a detection tooling. Background Art

[0002] The ball cage in the constant velocity drive shaft of the automobile uses a constant velocity tripod universal joint. The tripod universal joint consists of a tripod joint, a ball ring, a needle roller, a needle roller retaining ring and a wire retaining ring. The ball ring and needle roller are assembled on the tripod joint journal and are limited by needle roller retaining rings and wire retaining rings. After the ball ring is limited, a certain amount of slippage needs to be guaranteed. The corresponding assembly dimensions of the needle roller retaining ring directly affect the amount of slippage of the ball ring. The needle roller retaining ring needs to have a higher dimensional accuracy and assembly position accuracy.

[0003] At present, the machining accuracy requirements for the needle roller retaining ring in the tripod universal joint are relatively high, so the size of the needle roller retaining ring needs to be measured after the machining is completed. Since the measuring point of the needle roller retaining ring is on the inner ring side wall of the needle roller retaining ring, the existing conventional manual detection method (such as using a vernier caliper) will result in inaccurate measurement values, resulting in the tripod ball ring slip after assembly not meeting the use requirements, resulting in a low pass rate of the tripod universal joint assembly. Summary of the invention

[0004] In order to solve the problem that the measurement accuracy of the needle roller retaining ring is poor due to the existing conventional detection method, the present invention provides a detection tool.

[0005] In a first aspect, the present invention provides a detection tool, which is used to detect a workpiece, and comprises a base, a crimping piece, a positioning guide assembly and an elastic assembly, wherein the positioning guide assembly is fixed on the base, and the positioning guide assembly has a guide portion extending in a vertical direction, and the bottom end of the guide portion has a first step surface, and the first step surface is arranged upward in a vertical direction;

[0006] The elastic component is arranged on the peripheral side of the positioning guide component, one end of the elastic component is fixed on the base, and the other end of the elastic component is extended upward in the vertical direction;

[0007] The workpiece comprises a main body and a flange portion located below the main body, a first center hole is provided in the middle of the main body extending in the vertical direction, a plurality of standard measuring points are provided on the first center hole, a circle to be measured is formed around the first center hole along the axial direction, and the diameter of the circle to be measured is equal to the diameter of the first step surface, the workpiece is sleeved on the guide portion through the first center hole, and the bottom end of the flange portion abuts against the other end of the elastic component;

[0008] The crimping piece is sleeved on the guide portion, and the bottom of the crimping piece abuts against the top of the main body portion.

[0009] In some embodiments, the positioning guide assembly includes a positioning member and a guide member, the positioning member is fixed on the base, and a mounting hole is recessed inwardly at the top end of the positioning member;

[0010] The guide member includes a connecting portion and the guide portion located at the top end of the connecting portion, and the connecting portion extends into the assembly hole;

[0011] Wherein, along the horizontal direction, the maximum diameter of the guide portion is greater than the diameter of the connecting portion, the bottom end of the guide portion contacts a partial area of ​​the top end of the positioning member, and another partial area of ​​the top end of the positioning member forms the first step surface.

[0012] In some embodiments, a guide portion is further provided on the periphery of the positioning member, and the periphery of the guide portion has a guide surface, and along the horizontal direction, the distance between the guide surface and the center line of the positioning member extends from the top end of the guide portion to the bottom end of the guide portion and shows an increasing trend, and the guide surface is in contact with the first step surface;

[0013] The inner diameter of the first center hole extends from the top end of the main body to the bottom end of the main body and shows an increasing trend. The first center hole has a working surface, and a plurality of the standard measuring points are located on the working surface.

[0014] Wherein, the inclination angle of the working surface is consistent with the inclination angle of the guide surface.

[0015] In some embodiments, the flange portion is extended outwardly from the bottom end of the main body portion along the radial direction of the first center hole, and a resistance portion is formed at the bottom end of the flange portion, and the resistance portion is arranged around the circumference of the flange portion.

[0016] In some embodiments, the base is provided with an annular groove, and the annular groove is arranged around the outer circumference of the positioning member;

[0017] The elastic component includes an annular member and a plurality of elastic members, the annular member is located in the annular groove, and the annular member is partially exposed at the open end of the annular groove, one end of each of the elastic members is fixed to the bottom of the annular groove, and the other end of each of the elastic members is fixed to the bottom of the annular member;

[0018] Wherein, when the crimping member is moved downward, the abutting portion contacts the top of the annular member, and the elastic member is in a compressed state.

[0019] In some embodiments, there are multiple flange portions, each of which is extended outward from the bottom end of the main body portion along the radial direction of the first center hole, and a resistance portion is formed at the bottom end of each flange portion.

[0020] In some embodiments, an annular groove is formed on the base, the annular groove is arranged around the outer circumference of the positioning member, and a plurality of accommodating grooves are formed at the bottom of the annular groove;

[0021] The elastic component includes a plurality of support members and a plurality of elastic members, each of the support members is located in the annular groove, and each of the support members is partially exposed at the open end of the annular groove, one end of each of the elastic members is fixed to the bottom of the accommodating groove, and the other end of each of the elastic members is fixed to the bottom of one of the support members;

[0022] Wherein, when the crimping member is moved downward, the workpiece portion is located in the annular groove, each of the abutting portions contacts the top of one of the supporting members, and each of the elastic members is in a compressed state.

[0023] In some embodiments, a second center hole is provided in the middle of the crimping piece extending in the vertical direction, and the crimping piece is sleeved on the guide portion through the second center hole;

[0024] There are first gaps between the two opposite end surfaces of the guide portion on the side where the maximum diameter is located and the inner side wall of the second center hole.

[0025] In some embodiments, the axis of the first center hole and the axis of the second center hole are both located on the same straight line;

[0026] There are second gaps between the two opposite end surfaces of the guide portion on the side where the maximum diameter is located and the inner side wall of the first center hole, and the value of the second gap is smaller than the value of the first gap.

[0027] In order to solve the problem that the measurement accuracy of the needle roller retaining ring is poor due to the existing conventional detection method, the present invention has the following advantages:

[0028] The technical solution of the present invention can realize accurate detection of the workpiece, and there is no need to design a more complicated structure for detecting and positioning the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram showing a structure in which a workpiece is clamped on a testing fixture is shown;

[0030] Figure 2 Shows Figure 1 The enlarged schematic diagram of the structure of the dotted circle A shown in FIG.

[0031] Figure markings: 01-detection tooling; 1-base; 2-positioning guide assembly; 21-positioning member; 211-guide portion; 212-first step surface; 22-guide member; 221-guide portion; 222-connecting portion; 3-elastic assembly; 31-annular member; 32-elastic member; 4-crimping member; 5-workpiece; 51-main body; 511-standard measuring point; 52-flanging portion. DETAILED DESCRIPTION

[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0033] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0034] This embodiment discloses a detection tool 01, such as Figure 1 and Figure 2 As shown, the detection tool 01 includes a base 1, a crimping piece 4, a positioning guide assembly 2 and an elastic assembly 3, wherein the positioning guide assembly 2 is fixed on the base 1, and the positioning guide assembly 2 has a guide portion 221 extending in a vertical direction, and the bottom end of the guide portion 221 has a first step surface 212, and the first step surface 212 is arranged upward in a vertical direction;

[0035] The elastic component 3 is arranged on the peripheral side of the positioning guide component 2, one end of the elastic component 3 is fixed on the base 1, and the other end of the elastic component 3 is extended upward in the vertical direction;

[0036] The workpiece 5 comprises a main body 51 and a flange portion 52 located below the main body 51. A first central hole is provided in the middle of the main body 51 along a vertical direction. A plurality of standard measuring points 511 are provided on the first central hole. A circle to be measured is formed around the first central hole along the axial direction. The diameter of the circle to be measured is equal to the diameter of the first step surface 212. The workpiece 5 is sleeved on the guide portion 221 through the first central hole. The bottom end of the flange portion 52 abuts against the other end of the elastic component 3.

[0037] The crimping member 4 is sleeved on the guide portion 221 , and the bottom of the crimping member 4 abuts against the top of the main body 51 .

[0038] In this embodiment, the present application provides a detection jig 01. The detection jig 01 is used to accurately measure the size of a workpiece 5. In the present application, the workpiece 5 is a ring-shaped member 31, which has a main body 51 and a flange portion 52 extending outward from the bottom end of the main body 51. A first center hole is provided in the middle of the main body 51 along the vertical direction. The first center hole penetrates the main body 51. The inner diameter of the first center hole extends from the top end of the main body 51 to the bottom end of the main body 51 and has an expanding trend, so that the workpiece 5 can slide in the vertical direction on the guide portion 221 of the detection jig 01 through the first center hole.

[0039] Specifically, a plurality of standard measuring points 511 are arranged on the first center hole, and a circle to be measured is formed around the first center hole along the axis. The distance between the position of the side of the workpiece 5 where the circle to be measured is located and the bottom end of the flange portion 52 is the distance to be measured.

[0040] Furthermore, the inspection tool 01 includes a base 1, a crimping member 4, a positioning guide component 2 and an elastic component 3. The base 1 is used for supporting and positioning, and the base 1 can be placed on an operating platform.

[0041] Specifically, the positioning guide assembly 2 is fixedly arranged on the base 1, and the positioning guide assembly 2 has a guide portion 221 extending in the vertical direction. The bottom end of the guide portion 221 has a first step surface 212, and the first step surface 212 is arranged upward in the vertical direction, and the diameter of the circle to be measured is equal to the diameter of the first step surface 212. In the present application, when the workpiece 5 is sleeved on the guide portion 221 through the first center hole, the workpiece 5 can be moved so that the circle to be measured of the workpiece 5 passing through the first center hole can contact the first step surface 212.

[0042] Specifically, the elastic component 3 is arranged around the positioning guide component 2, and one end of the elastic component 3 is fixed on the base 1, and the other end of the elastic component 3 is extended upward in the vertical direction. In the present application, when the workpiece 5 is sleeved on the guide portion 221 through the first center hole, the bottom end of the flange portion 52 abuts against the other end of the elastic component 3.

[0043] Specifically, the crimping member 4 is sleeved on the guide portion 221 , and the bottom of the crimping member 4 abuts against the top of the main body 51 of the workpiece 5 .

[0044] In this embodiment, the workpiece 5 can be placed on the detection fixture 01, and sleeved on the guide portion 221 through the first center hole, and the crimping piece 4 can be sleeved on the guide portion 221, so that the bottom of the crimping piece 4 abuts against the top of the main body 51 of the workpiece 5. In this application, when the crimping piece 4 is moved downward, the workpiece 5 is forced to move downward in the vertical direction around the guide portion 221, thereby forcing the elastic member 32 to move downward and be in a compressed state. When the workpiece 5 is brought into contact with the first step surface 212 through the circle to be measured of the first center hole, the crimping piece 4 is stopped at this time, and the distance value of the downward movement of the other end of the elastic component 3 is obtained. Among them, this distance value is the distance to be measured of the workpiece 5. Therefore, accurate detection of the workpiece 5 can be achieved through the above-mentioned detection fixture 01.

[0045] In some embodiments, the positioning guide assembly 2 includes a positioning member 21 and a guide member 22, the positioning member 21 is fixed on the base 1, and a mounting hole is recessed inwardly at the top end of the positioning member 21;

[0046] The guide member 22 includes a connecting portion 222 and the guide portion 221 located at the top of the connecting portion 222, and the connecting portion 222 extends into the assembly hole;

[0047] Among them, along the horizontal direction, the maximum diameter of the guide part 221 is greater than the diameter of the connecting part 222, the bottom end of the guide part 221 contacts a partial area of ​​the top of the positioning member 21, and another partial area of ​​the top of the positioning member 21 forms the first step surface 212.

[0048] Furthermore, a guide portion 211 is further provided on the periphery of the positioning member 21. The periphery of the guide portion 211 has a guide surface. In the horizontal direction, the distance between the guide surface and the center line of the positioning member 21 increases from the top end of the guide portion 211 to the bottom end of the guide portion 211. The guide surface contacts the first step surface 212.

[0049] The inner diameter of the first center hole extends from the top end of the main body 51 to the bottom end of the main body 51 and has an increasing trend. The first center hole has a working surface, and a plurality of the standard measuring points 511 are located on the working surface.

[0050] Wherein, the inclination angle of the working surface is consistent with the inclination angle of the guide surface.

[0051] In this embodiment, through the above arrangement, the connecting portion 222 of the guide member 22 can be quickly inserted into the assembly hole of the positioning member 21, so that the guide member 22 can be quickly mounted on the positioning member 21 to further improve the assembly efficiency. The guide member 22 and the positioning member 21 are detachably fixed to prevent the workpiece 5 mounted on the guide portion 221 from shaking during the movement due to the violent shaking of the guide member 22 during the detection process, thereby preventing the measurement value from being inaccurate.

[0052] Specifically, the connecting portion 222 of the guide member 22 may be interference fit with the assembly hole of the positioning member 21, thereby realizing a fixed connection between the guide member 22 and the positioning member 21; or, the outer periphery of the connecting portion 222 of the guide member 22 is provided with threads, and the assembly hole is provided as a threaded hole, so that the connecting portion 222 of the guide member 22 extends into the assembly hole to realize a threaded connection; or, the assembly hole is provided through the positioning member 21, so that one end of the connecting portion 222 of the guide member 22 passes through the assembly hole and is connected to the nut, thereby realizing The guide portion 221 of the guide member 22 is limited on the positioning member 21 in the horizontal direction. At the same time, since the bottom end of the guide portion 221 abuts against a partial area of ​​the top end of the positioning member 21, and the nut cooperating with the connecting portion 222 of the guide member 22 abuts against a partial area of ​​the bottom end of the positioning member 21, the guide portion 221 of the guide member 22 is limited on the positioning member 21 in the vertical direction; alternatively, the guide member 22 and the positioning member 21 are fixedly connected by other feasible connection methods, and the present application is not limited to this.

[0053] Furthermore, along the horizontal direction, the maximum diameter of the guide portion 221 is greater than the diameter of the connecting portion 222 , so that the bottom end of the guide portion 221 contacts a partial area of ​​the top of the positioning member 21 , so that another partial area of ​​the top of the positioning member 21 forms the first step surface 212 .

[0054] In this embodiment, the first central hole of the workpiece 5 has a working surface, which is an inclined surface, and a plurality of standard measuring points 511 are located on the working surface.

[0055] Specifically, a guide portion 211 is also provided on the periphery of the positioning member 21 of the detection fixture 01, and a guide surface is formed on the periphery of the guide portion 211. In the horizontal direction, the distance between the guide surface and the center line of the positioning member 21 extends from the top end of the guide portion 211 to the bottom end of the guide portion 211 and tends to expand. At the same time, the guide surface is connected to the first step surface 212. The inclination angle of the working surface in the present application is consistent with the inclination angle of the guide surface. When the crimping member 4 is moved downward, the workpiece 5 is forced to move downward and the working surface of the workpiece 5 is brought into contact with the guide surface of the detection fixture 01, so as to further reduce the wear of the points to be detected on the workpiece 5 during the detection process and affect the assembly dimensional accuracy of the workpiece 5.

[0056] In some embodiments, the flange portion 52 extends outward from the bottom end of the main body portion 51 along the radial direction of the first center hole, and a resistance portion is formed at the bottom end of the flange portion 52 , and the resistance portion is arranged around the circumference of the flange portion 52 .

[0057] Furthermore, the base 1 is provided with an annular groove, and the annular groove is provided around the outer circumference of the positioning member 21;

[0058] The elastic component 3 includes an annular member 31 and a plurality of elastic members 32. The annular member 31 is located in the annular groove, and a portion of the annular member 31 is exposed at the open end of the annular groove. One end of each of the elastic members 32 is fixed to the bottom of the annular groove, and the other end of each of the elastic members 32 is fixed to the bottom of the annular member 31.

[0059] When the crimping member 4 is moved downward, the abutting portion contacts the top of the annular member 31 , and the elastic member 32 is in a compressed state.

[0060] In this embodiment, through the above arrangement, when the crimping member 4 is moved downward, a downward force is applied to the ring member 31 through the abutment portion when the workpiece 5 moves downward, and the force at each position on the ring member 31 is equalized, thereby improving the detection accuracy of the detection tool 01. In the present application, three elastic members 32 are provided, and the three elastic members 32 are symmetrically arranged at intervals around the circumference of the positioning guide assembly 2. Among them, the elastic member 32 can be a compression spring or an elastic ball, and the present application is not limited thereto.

[0061] In some embodiments, there are multiple flange portions 52, each of which is extended outward from the bottom end of the main body 51 along the radial direction of the first center hole, and a resistance portion is formed at the bottom end of each flange portion 52.

[0062] Furthermore, an annular groove is concavely provided on the base 1, and the annular groove is arranged around the outer circumference of the positioning member 21, and a plurality of accommodating grooves are also concavely provided at the bottom of the annular groove;

[0063] The elastic component 3 includes a plurality of support members and a plurality of elastic members 32, each of the support members is located in the annular groove, and each of the support members is partially exposed at the open end of the annular groove, one end of each of the elastic members 32 is fixed to the bottom of the accommodating groove, and the other end of each of the elastic members 32 is fixed to the bottom of one of the support members;

[0064] When the crimping member 4 is moved downward, the workpiece 5 is partially located in the annular groove, each of the abutting portions contacts the top of one of the supporting members, and each of the elastic members 32 is in a compressed state.

[0065] In this embodiment, through the above-mentioned arrangement, when the crimping part 4 is moved downward, a downward force is applied to the ring part 31 through the resistance part when the workpiece 5 moves downward, and the force at each position on the ring part 31 is equal, thereby improving the detection accuracy of the detection tooling 01.

[0066] In some embodiments, a second center hole is provided in the middle of the crimping member 4 extending in the vertical direction, and the crimping member 4 is sleeved on the guide portion 221 through the second center hole;

[0067] There are first gaps between the two opposite end surfaces of the guide portion 221 on the side where the maximum diameter is located and the inner side wall of the second center hole.

[0068] Furthermore, the axis of the first center hole and the axis of the second center hole are both located on the same straight line;

[0069] There are second gaps between the two opposite end surfaces of the guide portion 221 on the side where the maximum diameter is located and the inner wall of the first center hole, and the value of the second gap is smaller than the value of the first gap.

[0070] In this embodiment, by setting the axes of the first center hole and the second center hole on the same straight line, it is convenient to better achieve centering during detection; at the same time, since there are first gaps between the two opposite end surfaces on the side where the maximum diameter of the guide portion 221 is located and the inner side wall of the second center hole, the shaking of the crimping part 4 when it moves down along the vertical direction on the guide portion 221 is reduced, thereby causing inaccurate detection, so as to improve the detection accuracy of the detection tool 01. In this application, the value range of the first gap is preferably less than or equal to 0.08 mm.

[0071] Furthermore, the two opposite end surfaces on the side where the maximum diameter of the guide portion 221 is located have a second gap with the inner side wall of the first center hole respectively. This is to reduce the shaking of the workpiece 5 during the forced downward movement, thereby causing inaccurate detection, so as to improve the detection accuracy of the detection fixture 01. Among them, the value of the second gap is smaller than the value of the first gap, so as to ensure that the workpiece 5 does not shake during the forced downward movement. Therefore, when the crimping part 4 moves downward in the vertical direction on the guide portion 221, it will produce a slight shake, which will not affect or reduce the impact on the workpiece 5 during the forced downward movement. Thereby improving the accuracy of the detection fixture 01 in detecting the size value of the workpiece 5.

[0072] In summary, through the above-mentioned structural setting, accurate detection of the workpiece can be achieved, and there is no need to design a more complicated structure for detecting and positioning the workpiece.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0074] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A detection tool for detecting a workpiece, characterized in that: The detection tooling includes a base, a crimping piece, a positioning guide component and an elastic component, wherein: The positioning guide assembly is fixed on the base, and the positioning guide assembly has a guide portion extending in the vertical direction, and the bottom end of the guide portion has a first step surface, and the first step surface is arranged upward in the vertical direction; The elastic component is arranged on the peripheral side of the positioning guide component, one end of the elastic component is fixed on the base, and the other end of the elastic component is extended upward in the vertical direction; The workpiece comprises a main body and a flange portion located below the main body, a first center hole is provided in the middle of the main body extending in the vertical direction, a plurality of standard measuring points are provided on the first center hole, a circle to be measured is formed around the first center hole along the axial direction, and the diameter of the circle to be measured is equal to the diameter of the first step surface, the workpiece is sleeved on the guide portion through the first center hole, and the bottom end of the flange portion abuts against the other end of the elastic component; The crimping piece is sleeved on the guide portion, and the bottom of the crimping piece abuts against the top of the main body portion.

2. The detection tooling according to claim 1, characterized in that: The positioning guide assembly includes a positioning member and a guide member, the positioning member is fixed on the base, and a mounting hole is recessed inwardly at the top end of the positioning member; The guide member includes a connecting portion and the guide portion located at the top end of the connecting portion, and the connecting portion extends into the assembly hole; Wherein, along the horizontal direction, the maximum diameter of the guide portion is greater than the diameter of the connecting portion, the bottom end of the guide portion contacts a partial area of ​​the top end of the positioning member, and another partial area of ​​the top end of the positioning member forms the first step surface.

3. The detection tooling as claimed in claim 2, characterized in that: The outer periphery of the positioning member is also provided with a guide portion, and the outer periphery of the guide portion has a guide surface, and along the horizontal direction, the distance between the guide surface and the center line of the positioning member extends from the top end of the guide portion to the bottom end of the guide portion and tends to expand, and the guide surface contacts the first step surface; The inner diameter of the first center hole extends from the top end of the main body to the bottom end of the main body and shows an increasing trend. The first center hole has a working surface, and a plurality of the standard measuring points are located on the working surface. Wherein, the inclination angle of the working surface is consistent with the inclination angle of the guide surface.

4. The detection tooling as claimed in claim 2, characterized in that: The flange portion is extended outwardly from the bottom end of the main body portion along the radial direction of the first central hole, and a resisting portion is formed at the bottom end of the flange portion. The resisting portion is arranged around the circumference of the flange portion.

5. The detection tool as claimed in claim 4, characterized in that: An annular groove is concavely formed on the base, and the annular groove is arranged around the outer circumference of the positioning member; The elastic component includes an annular member and a plurality of elastic members, the annular member is located in the annular groove, and the annular member is partially exposed at the open end of the annular groove, one end of each of the elastic members is fixed to the bottom of the annular groove, and the other end of each of the elastic members is fixed to the bottom of the annular member; Wherein, when the crimping member is moved downward, the abutting portion contacts the top of the annular member, and the elastic member is in a compressed state.

6. The detection tool as claimed in claim 2, characterized in that: There are a plurality of flange parts, each of which is extended outwardly from the bottom end of the main body along the radial direction of the first center hole, and a resisting part is formed at the bottom end of each flange part.

7. The detection tooling according to claim 6, characterized in that: The base is provided with an annular groove, the annular groove is arranged around the outer circumference of the positioning member, and a plurality of accommodating grooves are also provided at the bottom of the annular groove; The elastic component includes a plurality of support members and a plurality of elastic members, each of the support members is located in the annular groove, and each of the support members is partially exposed at the open end of the annular groove, one end of each of the elastic members is fixed to the bottom of the accommodating groove, and the other end of each of the elastic members is fixed to the bottom of one of the support members; Wherein, when the crimping member is moved downward, the workpiece portion is located in the annular groove, each of the abutting portions contacts the top of one of the supporting members, and each of the elastic members is in a compressed state.

8. The detection tooling according to claim 1, characterized in that: A second center hole is provided in the middle of the crimping piece extending in the vertical direction, and the crimping piece is sleeved on the guide portion through the second center hole; There are first gaps between the two opposite end surfaces of the guide portion on the side where the maximum diameter is located and the inner side wall of the second center hole.

9. The detection tooling according to claim 8, characterized in that: The axis of the first center hole and the axis of the second center hole are both located on the same straight line; There are second gaps between the two opposite end surfaces of the guide portion on the side where the maximum diameter is located and the inner side wall of the first center hole, and the value of the second gap is smaller than the value of the first gap.

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