Guide pin center line detection device

Abstract

The utility model discloses a guide pin center line detection device, a guide pin is connected with a connecting seat, and the guide pin center line detection device comprises a bottom plate, a detection block and a pressing mechanism. A positioning part for positioning a connecting seat of the guide pin is arranged in the middle of the bottom plate, a linear guide part is arranged at one end of the bottom plate, and a pressing mechanism mounting part is arranged at the other end of the bottom plate; the detection block is installed on the linear guide part in a sliding mode, the detection block is provided with a center line detection hole used for detecting the center line of the guide pin, and the inner diameter of the center line detection hole is matched with the outer diameter of the guide pin; and the pressing mechanism is mounted on the pressing mechanism mounting part and is used for pressing or loosening the connecting seat of the guide pin. The guide pin center line detection device is accurate in guide pin center line detection, short in detection time, high in detection convenience and high in detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a guide pin center line detection device. Background Art

[0002] like Figure 1 The figure shows a guide pin 100 currently used in a communication optical module device. The guide pin 100 is used to insert into a connection hole of a PCB circuit board in the communication optical module device to insert and position the PCB circuit board. One end of the guide pin 100 is connected to a connection base 101, which has a plurality of connectors 102. After the guide pin 100 is manufactured, its structural dimensions need to be inspected. One inspection step is to inspect the centerline of the guide pin to determine whether it is perpendicular to the side reference surface 103 of the connection base 101 and parallel to the bottom reference surface 104 of the connection base 101. If the inspection result is "yes", the guide pin centerline inspection has passed. If the inspection result is "no", the guide pin centerline is skewed and the inspection has failed. There are currently two main detection methods for the guide pin centerline detection problem: one is to use the light projection method to detect the guide pin centerline, but the projection method detection often has the problem of inaccurate projection, and the projection data is prone to deviation; the other is to use measuring tools for measurement, but the measurement process is particularly time-consuming, the measurement efficiency is slow, the detection is inconvenient, and it is not suitable for batch detection. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a guide pin centerline detection device with accurate detection, short detection time, high detection convenience and high detection efficiency in response to the above-mentioned deficiencies in the prior art.

[0004] In order to solve the above technical problems, the technical solution of the present utility model is: a guide pin center line detection device, wherein the guide pin is connected to a connecting seat, and the guide pin center line detection device comprises:

[0005] A bottom plate, wherein a positioning portion for positioning a connecting seat of a guide pin is provided in the middle of the bottom plate, a linear guide portion is provided at one end of the bottom plate, and a pressing mechanism mounting portion is provided at the other end of the bottom plate;

[0006] a detection block, the detection block being slidably mounted on the linear guide portion, the detection block being provided with a centerline detection hole for detecting the centerline of the guide pin, the inner diameter of the centerline detection hole being matched with the outer diameter of the guide pin;

[0007] The clamping mechanism is installed on the clamping mechanism installation part, and the clamping mechanism is used to clamp or loosen the connecting seat of the guide pin.

[0008] In the above technical solution, the lower end of the connecting seat of the guide pin has a plurality of connecting heads, and the positioning portion of the base plate includes a plurality of positioning holes corresponding to and matching the connecting heads.

[0009] In the above technical solution, the linear guide portion of the base plate is a "⊥"-shaped linear slide groove, and the lower end of the detection block is provided with a "⊥"-shaped linear slider. The "⊥"-shaped linear slider is installed in the "⊥"-shaped linear slide groove and can slide back and forth along the "⊥"-shaped linear slide groove.

[0010] In the above technical solution, the length of the center line detection hole of the detection block is greater than or equal to the length of the guide pin.

[0011] In the above technical solution, the clamping mechanism includes a base, a push arm, a cantilever, a cantilever pressing piece, a pressing rod and a clamping head; the lower end of the push arm is hinged to the middle part of the base, and the upper end of the push arm is provided with a handle; the rear end of the cantilever is hinged to the upper part of the base, the front end of the cantilever is connected to the upper end of the pressing rod, and the clamping head is connected to the lower end of the pressing rod, and the clamping head is used to tighten or loosen the connecting seat of the guide pin; the middle part of the push arm is hinged to the upper end of the cantilever pressing piece, the middle part of the cantilever is hinged to the lower end of the cantilever pressing piece, and the front end of the middle part of the cantilever pressing piece is provided with a pressing block for pressing the cantilever.

[0012] In the above technical solution, the base includes a connecting plate, to which a right-angled triangle-shaped vertical plate is integrally connected. The connecting plate is screwed to the clamping mechanism mounting portion of the base plate. The lower end of the push arm is hinged to the middle of the hypotenuse of the vertical plate, and the rear end of the cantilever is hinged to the top corner of the vertical plate. The pressure rod has external threads, and the upper end of the pressure rod is screwed to the front end of the cantilever, and the height of the pressure rod can be adjusted by the screw. The clamping head is screwed to the lower end of the pressure rod. The clamping head is a rubber clamping head.

[0013] The beneficial effects of the present invention are as follows: when detecting the center line of the guide pin, the present invention first positions the connecting seat of the guide pin on the positioning portion of the base plate so that the guide pin faces the detection block; then the pressing mechanism presses the connecting seat of the guide pin; then the detection block is pushed toward the guide pin along the guide portion of the base plate so that the guide pin is inserted into the center line detection hole of the detection block; since the inner diameter of the center line detection hole matches the outer diameter of the guide pin, if the guide pin can be normally inserted into the center line detection hole, it means that the center line of the guide pin is perpendicular to the side reference surface of the connecting seat and parallel to the bottom reference surface of the connecting seat, and the center line of the guide pin is perpendicular to the side reference surface of the connecting seat and parallel to the bottom reference surface of the connecting seat. The test result is "qualified"; if the guide pin cannot be inserted into the center line detection hole normally, and problems such as edge insertion, jamming or inability to insert occur during the insertion process, it means that the center line of the guide pin is not perpendicular to the side reference surface of the connecting seat or is not parallel to the bottom reference surface of the connecting seat, and the guide pin center line test result is "unqualified"; it can be seen that the utility model can realize the detection of the guide pin center line through the cooperation of the base plate, the detection block and the clamping mechanism, and through simple operation. Compared with traditional projection detection methods and measurement detection methods, the utility model has accurate detection, short detection time, high detection convenience and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the guide pin.

[0015] Figure 2 This is the overall structural diagram of the utility model from the first angle.

[0016] Figure 3 This is the overall structural diagram of the utility model from the second angle.

[0017] Figure 4 This is a diagram of the dispersed structure of the present utility model.

[0018] Figure 5 This is a diagram of the usage state of the utility model. DETAILED DESCRIPTION

[0019] The structural principle and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1The figure shows the structure of a guide pin 100 tested in the present invention. This guide pin 100 is used in communication optical module equipment. Inserting the guide pin 100 into the connection hole of a PCB circuit board within the communication optical module allows for insertion and positioning of the PCB. One end of the guide pin 100 is connected to a connector 101, which has several connectors 102. The side of the connector 101 proximal to the guide pin 100 has a side reference surface 103, and the underside of the connector 101 has a bottom reference surface 104. The centerline of the guide pin is designated A, and is perpendicular to the side reference surface 103 and parallel to the bottom reference surface 104.

[0021] like Figure 1-Figure 5 As shown, the utility model is a guide pin center line detection device, which is used to detect whether the guide pin center line A is perpendicular to the side reference surface 103 of the connecting seat 101 and whether it is parallel to the bottom reference surface 104 of the connecting seat 101. The guide pin 100 is connected to the connecting seat 101. The guide pin center line detection device includes a base plate 1, a detection block 2 and a clamping mechanism 3. The middle part of the base plate 1 is provided with a positioning portion 11 for positioning the connecting seat of the guide pin, one end of the base plate 1 is provided with a linear guide portion 12, and the other end of the base plate 1 is provided with a clamping mechanism 3. The structure mounting portion 13, preferably, the upper side surface of the base plate 1 is a horizontal plane, and the positioning portion 11, the linear guide portion 12 and the clamping mechanism mounting portion 13 all correspond to the upper side surface of the base plate 1; the detection block 2 is slidably mounted on the linear guide portion 12, and the detection block 2 is provided with a center line detection hole 21 for detecting the center line of the guide pin, and the inner diameter of the center line detection hole 21 matches the outer diameter of the guide pin 100; the clamping mechanism 3 is mounted on the clamping mechanism mounting portion 13, and the clamping mechanism 3 is used to tighten or loosen the connecting seat of the guide pin.

[0022] The detection method of the present invention is as follows: when detecting the center line of the guide pin, the present invention first positions the connecting seat 101 of the guide pin 100 on the positioning portion 11 of the base plate 1, so that the guide pin 100 faces the detection block 2; then the pressing mechanism 3 presses the connecting seat 101 of the guide pin 100; then the detection block 2 is pushed toward the guide pin 100 along the guide portion 12 of the base plate 1, so that the guide pin 100 is inserted into the center line detection hole 21 of the detection block 2; since the inner diameter of the center line detection hole 21 matches the outer diameter of the guide pin 100, if the guide pin 100 can be normally inserted into the center line detection hole 21, it means that the center line of the guide pin is perpendicular to the side reference surface 103 of the connecting seat 101 and parallel to the connecting seat 1 01, the guide pin centerline detection result is "qualified"; if the guide pin 100 cannot be normally inserted into the centerline detection hole 21, and there are problems such as edge insertion, jamming or inability to insert during the insertion process, it means that the guide pin centerline is not perpendicular to the side reference surface 103 of the connecting seat 101 or is not parallel to the bottom reference surface 104 of the connecting seat 101, and the guide pin centerline detection result is "unqualified"; it can be seen that the utility model can realize the detection of the guide pin centerline through the cooperation of the base plate 1, the detection block 2 and the clamping mechanism 3, and through simple operation. Compared with the traditional projection detection method and the measurement detection method, the utility model has the advantages of accurate detection, short detection time, high detection convenience and high detection efficiency.

[0023] like Figure 1-Figure 5 As shown, the lower end of the connecting base 101 of the guide pin 100 has a plurality of connecting heads 102, and the positioning portion 11 of the base plate 1 includes a plurality of positioning holes 111 that correspond to and match the connecting heads 102. When positioning the guide pin 100, the connecting heads 102 at the lower end of the connecting base 101 of the guide pin 100 are inserted into the corresponding positioning holes 111, thereby achieving the positioning of the guide pin 100, which is very simple to operate.

[0024] like Figure 2-Figure 5 As shown, the linear guide portion 12 of the base plate 1 is a "⊥"-shaped linear groove, and the lower end of the detection block 2 is provided with a "⊥"-shaped linear slider 22. The "⊥"-shaped linear slider 22 is installed within the "⊥"-shaped linear groove and can slide back and forth along the "⊥"-shaped linear groove. The structure in which the "⊥"-shaped linear groove and the "⊥"-shaped linear slider 22 cooperate can prevent the "⊥"-shaped linear slider 22 of the detection block 2 from loosening from the "⊥"-shaped linear groove, and can prevent the detection block 2 from deflecting to the side, ensuring that the detection block 2 is stably pushed toward the guide pin 100, thereby achieving accurate detection.

[0025] like Figure 2-Figure 5 As shown, the length of the centerline detection hole 21 of the detection block 2 is greater than or equal to the length of the guide pin 100. Preferably, the centerline detection hole 21 runs through the entire detection block 2.

[0026] like Figure 2-Figure 5 As shown, the clamping mechanism 3 includes a base 31, a push arm 32, a cantilever 33, a cantilever pressing piece 34, a pressing rod 35 and a clamping head 36; the lower end of the push arm 32 is hinged to the middle of the base 31, and the upper end of the push arm 32 is provided with a handle 37; the rear end of the cantilever 33 is hinged to the upper part of the base 31, the front end of the cantilever 33 is connected to the upper end of the pressing rod 35, and the clamping head 36 is connected to the lower end of the pressing rod 35, and the clamping head 36 is used to clamp or loosen the connecting seat 101 of the guide pin 100; the middle part of the push arm 32 is hinged to the upper end of the cantilever pressing piece 34, the middle part of the cantilever 33 is hinged to the lower end of the cantilever pressing piece 34, and the front end of the middle part of the cantilever pressing piece 34 is provided with a pressing block 341 for pressing the cantilever 33. When the staff pushes the handle 37 at the upper end of the push arm 32 forward, the push arm 32 drives the front end of the cantilever 33 to move downward, and then drives the clamping head 36 at the lower end of the pressure rod 35 to clamp the connecting seat of the guide pin. At the same time, the pressing block 341 of the cantilever pressing piece 34 presses the cantilever 33 to prevent the cantilever 33 from lifting up. At this time, after the staff releases the handle, the clamping head 36 can maintain the clamping force on the connecting seat of the guide pin; when the staff pushes the handle 37 at the upper end of the push arm 32 backward, the pressing block 341 of the cantilever pressing piece 34 first releases the pressing force on the cantilever 33, and then the cantilever 33 is lifted up, causing the clamping head 36 at the lower end of the pressure rod 35 to release the pressure on the connecting seat of the guide pin.

[0027] like Figure 2-Figure 5 As shown, the base 31 includes a connecting plate 311, to which a right-angled triangle-shaped vertical plate 312 is integrally connected. The connecting plate 311 is screwed to the clamping mechanism mounting portion 13 of the base plate 1. The lower end of the push arm 32 is hinged to the middle of the hypotenuse of the vertical plate 312, and the rear end of the cantilever 33 is hinged to the top corner of the vertical plate 312. The pressure rod 35 has an external thread. The upper end of the pressure rod 35 is connected to the front end of the cantilever 33 by a screw 38, and the height of the pressure rod 35 can be adjusted by the screw 38. The clamping head 36 is screwed to the lower end of the pressure rod 35. The clamping head 36 is a rubber clamping head.

[0028] The above description is only a preferred embodiment of the present invention. Any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A guide pin centerline detection device, wherein the guide pin is connected to a connecting seat, characterized in that: The guide pin centerline detection device comprises: A bottom plate, wherein a positioning portion for positioning a connecting seat of a guide pin is provided in the middle of the bottom plate, a linear guide portion is provided at one end of the bottom plate, and a pressing mechanism mounting portion is provided at the other end of the bottom plate; a detection block, the detection block being slidably mounted on the linear guide portion, the detection block being provided with a centerline detection hole for detecting the centerline of the guide pin, the inner diameter of the centerline detection hole being matched with the outer diameter of the guide pin; The clamping mechanism is installed on the clamping mechanism installation part, and the clamping mechanism is used to clamp or loosen the connecting seat of the guide pin.

2. The guide pin centerline detection device according to claim 1, characterized in that: The lower end of the connecting seat of the guide pin is provided with a plurality of connecting heads, and the positioning portion of the base plate includes a plurality of positioning holes corresponding to and matching the connecting heads.

3. The guide pin centerline detection device according to claim 1, characterized in that: The linear guide portion of the base plate is a "⊥"-shaped linear slide groove, and the lower end of the detection block is provided with a "⊥"-shaped linear slider. The "⊥"-shaped linear slider is installed in the "⊥"-shaped linear slide groove and can slide back and forth along the "⊥"-shaped linear slide groove.

4. The guide pin centerline detection device according to claim 1, characterized in that: The length of the center line detection hole of the detection block is greater than or equal to the length of the guide pin.

5. The guide pin centerline detection device according to claim 1, characterized in that: The clamping mechanism includes a base, a push arm, a cantilever, a cantilever pressing piece, a pressing rod and a clamping head; the lower end of the push arm is hinged to the middle of the base, and the upper end of the push arm is provided with a handle; the rear end of the cantilever is hinged to the upper part of the base, the front end of the cantilever is connected to the upper end of the pressing rod, and the clamping head is connected to the lower end of the pressing rod, and the clamping head is used to tighten or loosen the connecting seat of the guide pin; the middle part of the push arm is hinged to the upper end of the cantilever pressing piece, the middle part of the cantilever is hinged to the lower end of the cantilever pressing piece, and the front end of the middle part of the cantilever pressing piece is provided with a pressing block for pressing the cantilever.

6. The guide pin centerline detection device according to claim 5, characterized in that: The base includes a connecting plate, on which a vertical plate in the shape of a right triangle is integrally connected. The connecting plate and the clamping mechanism mounting portion of the base plate are connected by screws. The lower end of the push arm is hinged to the middle of the hypotenuse of the vertical plate, and the rear end of the cantilever is hinged to the top corner of the vertical plate.

7. The guide pin centerline detection device according to claim 5, characterized in that: The pressure rod has an external thread, the upper end of the pressure rod is connected to the front end of the cantilever by a screw, and the height of the pressure rod can be adjusted by the screw, and the clamping head is screwed to the lower end of the pressure rod.

8. The guide pin centerline detection device according to claim 5, characterized in that: The pressing head is a rubber pressing head.

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