Inspection tool with multiple convex pins

Abstract

This utility model discloses a gauge with multiple protruding pins, including a base plate; a limiting pin with a nut threaded onto it, which can pass through a through hole in the workpiece and is used to lock the workpiece onto the limiting pin; a positioning pin located within the space formed by the limiting pins, with its top end contacting the workpiece; and a detection block including a vertically extending upper protrusion that can be inserted into an interface in the workpiece, with both its front and back sides contacting the interface; wherein the limiting pin, positioning pin, and detection block all protrude vertically from the upper surface of the base plate. This utility model uses the limiting pins and nuts to lock the workpiece, the positioning pins to assist in supporting the workpiece's posture within the area enclosed by the limiting pins, and the upper protrusion of the detection block to insert into the workpiece's interface, thus integrating fixing, support, and detection functions, significantly improving positioning stability and detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of inspection tools, specifically to an inspection tool with multiple protruding pins. Background Technology

[0002] Inspection fixtures are crucial tools for ensuring workpiece dimensional accuracy and assembly performance; their positioning accuracy and inspection efficiency directly impact production quality. Current technologies for inspecting workpieces with multiple features such as through holes and connectors often employ single or simple combined positioning structures. While many existing fixtures can achieve basic positioning functions, they suffer from insufficient positioning stability. Workpieces may shift due to insecure fixing, and they are difficult to simultaneously meet multiple requirements such as through hole limiting, planar support, and connector inspection. Particularly for end caps with internal wiring, inspection requires verifying not only whether their overall dimensions and shape meet design requirements but also the accuracy of local positions at electrical connections. Utility Model Content

[0003] The problem to be solved by this utility model is to provide a gauge with multiple protruding pins.

[0004] To solve the above problems, this utility model provides a gauge with multiple protruding pins. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A gauge with multiple protruding pins includes: a base plate; a limiting pin with a nut threaded onto it, the limiting pin passing through a through hole in the workpiece, the nut used to lock the workpiece onto the limiting pin; a positioning pin located within the space formed by the plurality of limiting pins, the top end of the positioning pin used to contact the workpiece; and a detection block including a vertically extending upper protrusion, the upper protrusion being able to be inserted into an insertion interface in the workpiece, the front and back sides of the upper protrusion being able to contact the insertion interface; wherein the limiting pin, the positioning pin, and the detection block all protrude vertically from the upper surface of the base plate.

[0005] As a further improvement of this utility model, the limiting pin includes a first cylindrical segment, a second cylindrical segment, and a third cylindrical segment from top to bottom. The diameters of the first cylindrical segment, the second cylindrical segment, and the third cylindrical segment gradually increase. The surface of the first cylindrical segment has an external thread for assembly with a nut.

[0006] As a further improvement of this utility model, the base plate includes an upper base plate and a lower base plate, and the third cylindrical section is embedded in the base plate.

[0007] As a further improvement of this utility model, the positioning pin includes a fourth cylindrical segment and a fifth cylindrical segment from top to bottom, with the diameters of the fourth cylindrical segment and the fifth cylindrical segment gradually increasing.

[0008] As a further improvement of this utility model, the number of positioning pins is one, and the top of the fourth cylindrical segment has an outer rounded corner.

[0009] As a further improvement of this utility model, the top of the detection block has an integral upper protrusion, the top of the upper protrusion has an integral upper protrusion piece, and several upper protrusion pieces are arranged in parallel to each other.

[0010] As a further improvement of this utility model, the bottom of the upper protrusion and the top of the upper protrusion are transitioned by a chamfer.

[0011] As a further improvement of this utility model, the top heights of the limiting pin, positioning pin, and detection block gradually decrease in sequence.

[0012] As a further improvement of this utility model, a shoulder portion perpendicular to the axis of the locating pin is formed at the junction of the first cylindrical segment and the second cylindrical segment, and a shoulder portion perpendicular to the axis of the locating pin is also formed at the junction of the fourth cylindrical segment and the fifth cylindrical segment.

[0013] As a further improvement of this utility model, the limiting pin and the positioning pin are made of insulating material, and the detection block is made of conductive material.

[0014] The beneficial technical effects of using the inspection fixture with multiple protruding pins according to this application are: First, by passing the limiting pin through the workpiece's through hole and locking it with a nut, the workpiece can be firmly fixed, preventing the workpiece from shifting during inspection and affecting the positioning accuracy, thus improving positioning stability.

[0015] Secondly, the positioning pin is located within the space enclosed by the limiting pin and its top is in contact with the workpiece. This can provide additional support for the workpiece or provide an initial pre-position, helping to ensure the stability of the workpiece's posture during the inspection process and enhancing the overall positioning effect.

[0016] Finally, the upper protrusion of the detection block can be inserted into the workpiece insertion interface to realize the direct detection of features such as the position of the workpiece insertion interface. This can be electrical connection detection, so that the fixture can simultaneously meet multiple needs such as through hole limit, support and insertion interface detection, thereby improving detection efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of one embodiment of the present utility model; Figure 2 This is a partial enlarged view of point A in one embodiment of this utility model; Figure 3This is a perspective view of the detection block according to one embodiment of the present invention; Figure 4 This is an application diagram of one embodiment of the present invention; Figure 5 This is a partial enlarged view of section B of one embodiment of this utility model; Figure 6 This is a top view of one embodiment of the present invention; Figure 7 This is a CC cross-sectional view of one embodiment of the present invention.

[0019] 1-Base plate; 101-Upper base plate; 102-Lower base plate; 2-Limit pin; 201-First cylindrical section; 202-Second cylindrical section; 203-Third cylindrical section; 3-Nut; 4-Positioning pin; 401-Fourth cylindrical section; 402-Fifth cylindrical section; 5-Detection block; 501-Upper protrusion; 502-Upper protrusion; 503-Chamfer; 6-Workpiece; 601-Lug; 602-Interface. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, a gauge with multiple protruding pins includes: a base plate 1; a limiting pin 2, the limiting pin 2 being threadedly fitted with a nut 3, the limiting pin 2 being able to pass through a through hole 6 of a workpiece 6, the workpiece 6 being the workpiece to be measured, and the nut 3 being used to lock the workpiece 6 onto the limiting pin 2; a positioning pin 4, located within the space formed by several limiting pins 2, the top end of the positioning pin 4 being used to contact the workpiece 6; and a detection block 5, including a vertically extending upper protrusion 502, the upper protrusion 502 being able to be inserted into an insertion interface 602 in the workpiece 6. The limiting pins 2, positioning pins 4, and detection block 5 all protrude vertically from the upper surface of the base plate 1. Figure 5 As shown, workpiece 6 has a lug 601, and the lug 601 has a through hole, through which the limiting pin 2 can pass.

[0021] The beneficial effects of adopting the above technical solution are as follows: the workpiece is locked and fixed by the limit pin 2 passing through the through hole of the workpiece 6 and the nut 3; the positioning pin 4 provides auxiliary support in the area enclosed by the limit pin 2 to stabilize the posture of the workpiece; and the upper protrusion 502 of the detection block 5 is inserted into the workpiece insertion interface 602, thereby realizing the integration of through hole limiting, plane support and insertion interface detection functions, and significantly improving detection efficiency.

[0022] like Figure 7As shown, in some other embodiments of this utility model, the limiting pin 2 includes a first cylindrical segment 201, a second cylindrical segment 202, and a third cylindrical segment 203 from top to bottom. The diameters of the first cylindrical segment 201, the second cylindrical segment 202, and the third cylindrical segment 203 gradually increase. The surface of the first cylindrical segment 201 has an external thread for assembly with the nut 3.

[0023] The beneficial effects of adopting the above technical solution are: the three-section stepped shaft of the limiting pin 2 thus has a stepped surface; the external thread of the first cylindrical section 201 ensures that the nut 3 is effectively locked; the second cylindrical section 202 provides a guiding function; and the third cylindrical section 203 enhances the overall bending stiffness, thereby strengthening the positioning.

[0024] like Figure 7 As shown, in some other embodiments of this utility model, the base plate 1 includes an upper base plate 101 and a lower base plate 102, and the third cylindrical segment 203 is embedded in the base plate.

[0025] The upper base plate 101 has stepped holes for accommodating the third cylindrical section 203 and part of the second cylindrical section 202.

[0026] The beneficial effects of adopting the above technical solution are: the double-layer structure of the upper base plate 101 and the lower base plate 102 allows the base plate 1 to be opened and disassembled, so that the root of the limiting pin 2 can be fixed and the third cylindrical section 203 of the limiting pin 2 can be completely embedded in the base plate, which greatly improves the installation stability of the limiting pin 2 and effectively suppresses the external force deviation during the detection process.

[0027] In some other embodiments of this utility model, the positioning pin 4 includes a fourth cylindrical segment 401 and a fifth cylindrical segment 402 from top to bottom, with the diameters of the fourth cylindrical segment 401 and the fifth cylindrical segment 402 gradually increasing.

[0028] The beneficial effects of adopting the above technical solution are: the two-stage stepped cylindrical design of the positioning pin 4 allows the fourth cylindrical segment 401 to be accurately inserted into a certain part of the workpiece 6, such as contacting the center of the workpiece 6; the fifth cylindrical segment 402 provides a rigid support base, taking into account both positioning accuracy and structural strength requirements.

[0029] In some other embodiments of this utility model, the number of positioning pins 4 is one, and the top of the fourth cylindrical segment 401 has an outer rounded corner.

[0030] The beneficial effects of adopting the above technical solution are: the single positioning pin 4, combined with the outer rounded corner design of the top of the fourth cylindrical section 401, avoids scratching the surface of the workpiece 6, reduces contact stress, and is especially suitable for the center positioning scenario of precision workpieces.

[0031] like Figure 2 , Figure 3As shown, in some other embodiments of the present invention, the top of the detection block 5 is provided with an integral upper protrusion 501, the top of the upper protrusion 501 is provided with an integral upper protrusion 502, and a plurality of upper protrusions 502 are arranged parallel to each other and are at the same horizontal height.

[0032] The beneficial effects of adopting the above technical solution are: the detection block 5 adopts an integrally formed upper protrusion 501 and parallel arranged upper protrusions 502 to realize synchronous detection of multiple interfaces, the overall structure enhances rigidity and extends service life, and the parallel layout ensures detection consistency.

[0033] In some other embodiments of this utility model, the bottom of the upper protrusion 502 and the top of the upper protrusion 501 are transitioned by a chamfer 503.

[0034] The beneficial effects of adopting the above technical solution are: the chamfer 503 transition structure between the bottom of the upper protrusion 502 and the top of the upper protrusion 501 effectively disperses stress to prevent root breakage, prevents the upper protrusion 502 from tilting, and guides the workpiece insertion interface 602 to be smoothly aligned.

[0035] In some other embodiments of this utility model, the top heights of the limiting pin 2, the positioning pin 4, and the detection block 5 gradually decrease.

[0036] The beneficial effects of adopting the above technical solution are: the height difference design between the top of the limit pin 2, the positioning pin 4 and the detection block 5 can reduce the operational interference when the workpiece 6 contacts the inspection tool.

[0037] In some other embodiments of this utility model, a shoulder portion perpendicular to the axis of the limiting pin 2 is formed at the junction of the first cylindrical segment 201 and the second cylindrical segment 202, and a shoulder portion perpendicular to the axis of the positioning pin 4 is also formed at the junction of the fourth cylindrical segment 401 and the fifth cylindrical segment 402. The shoulder portion is a stepped surface.

[0038] The beneficial effects of adopting the above technical solution are: the shoulder provides a vertical bearing reference surface, ensuring that the locking force of nut 3 is effectively transmitted and preventing the pin from sinking.

[0039] In some other embodiments of this utility model, the limiting pin 2 and the positioning pin 4 are made of insulating material, and the detection block is made of conductive material.

[0040] The beneficial effects of adopting the above technical solution are: the limit pin 2 and the positioning pin 4 are made of insulating material to avoid electrical interference, and the conductive material of the detection block 5 realizes the electrical connection performance verification of the plug interface 602, thus realizing electrical testing.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A gauge having a plurality of pins, characterized by, include: Base plate; A limiting pin, which is threaded with a nut, is capable of passing through a through hole in the workpiece, and the nut is used to lock the workpiece onto the limiting pin. A positioning pin is located within the space formed by several limiting pins, and the top end of the positioning pin is used to contact the workpiece. The detection block includes a vertically extending upper protrusion that can be inserted into an interface in the workpiece, and both the front and back sides of the upper protrusion can contact the interface. The limiting pin, positioning pin, and detection block all protrude vertically from the upper surface of the base plate.

2. The gage with multiple protruding pins according to claim 1, wherein: The limiting pin includes a first cylindrical segment, a second cylindrical segment, and a third cylindrical segment from top to bottom. The diameters of the first cylindrical segment, the second cylindrical segment, and the third cylindrical segment gradually increase. The surface of the first cylindrical segment has an external thread for assembly with a nut.

3. The gage with multiple protruding pins according to claim 2, wherein: The base plate includes an upper base plate and a lower base plate, and the third cylindrical section is embedded in the base plate.

4. The gage with multiple protruding pins according to claim 2, wherein: The positioning pin includes a fourth cylindrical segment and a fifth cylindrical segment from top to bottom, with the diameters of the fourth and fifth cylindrical segments gradually increasing.

5. The gage with multiple protruding pins according to claim 4, wherein: The number of positioning pins is one, and the top of the fourth cylindrical segment has an outer rounded corner.

6. The gage with multiple protruding pins according to claim 1, wherein: The top of the detection block has an integral upper protrusion, and the top of the upper protrusion has an integral upper convex piece, with several upper convex pieces arranged parallel to each other.

7. The gage with multiple protruding pins according to claim 6, wherein: The bottom of the upper protrusion and the top of the upper protrusion are connected by a chamfer.

8. The gage with multiple protruding pins according to claim 1, wherein: The top heights of the limiting pin, positioning pin, and detection block gradually decrease in sequence.

9. The gage with multiple protruding pins according to claim 4, wherein: A shoulder portion perpendicular to the axis of the locating pin is formed at the junction of the first cylindrical segment and the second cylindrical segment, and a shoulder portion perpendicular to the axis of the locating pin is also formed at the junction of the fourth cylindrical segment and the fifth cylindrical segment.

10. The gage with multiple protruding pins according to claim 1, wherein: The limiting pin and positioning pin are made of insulating material, while the detection block is made of conductive material.

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