Pin shaft dimension detection device

Abstract

The utility model discloses a pin shaft dimension detection device, which relates to the technical field of detection devices and comprises an operation table, and a height measuring mechanism is arranged above the operation table. A plurality of clamping assemblies distributed in a circumferential array mode are arranged on the operation table, each clamping assembly comprises a clamping block, two penetrating extension rod mounting holes are formed in the side face of each clamping block, a T-shaped block is arranged at the bottom of each clamping block in a matched mode, and a supporting block is further arranged on the side, away from the corresponding T-shaped block, of each clamping block. A sliding block is further arranged beside the clamping block in a matched mode, two extension rods are symmetrically arranged on the side face of the sliding block, and a sliding bottom plate is further fixedly connected to the bottom of the sliding block. According to the utility model, the clamping assembly is arranged, so that the distance between the clamping blocks can be adjusted according to the sizes of pin shafts in different batches, the influence on the detection speed due to continuous replacement of a placing cylinder is avoided, and the detection efficiency is improved; meanwhile, the fixing effect of the clamping blocks on the pin shaft is better.

Description

Technical Field

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

[0002] Pins are a type of standardized fastener that can be used for both static fixed connections and relative movement with the connected parts. They are mainly used at the hinged joints of two parts. Existing inspection methods mostly require operators to measure with a measuring ruler or place the pin in a specially matched holder to see if it fits properly, thereby determining the length and diameter of the pin. This inspection method not only increases manual labor intensity, but also has low inspection accuracy, affecting the yield rate.

[0003] Patent announcement number CN212806831U describes a pin size detection device, which includes: a placement tube, a lifting cylinder, a detection plate, a motor, a clamp and a discharge chute; first, the pin to be detected is placed in the placement tube, and then the lifting cylinder drives the detection plate to contact the top of the pin to measure the length of the pin; if it is qualified, it enters the diameter detection, and then the motor drives the placement tube to rotate toward the clamp. If the pin passes through the pin smoothly, the diameter is qualified. At this time, the motor continues to drive the placement tube to move toward the clamp, so that the pin falls from the discharge chute according to its own gravity, and the detection is completed; the device can realize simultaneous detection of length and diameter, reduce operating procedures, reduce labor intensity, and is conducive to improving detection efficiency and accuracy, and improving the yield rate.

[0004] However, this device has some shortcomings when used. The device places the pin to be tested on a placing cylinder. When testing different batches of pins, the placing cylinder needs to be constantly replaced, which affects production efficiency. In addition, during the rotation of the placing cylinder, it cannot be guaranteed that the pin will not shake, which in turn affects the accuracy of the test.

[0005] Based on this, a pin shaft size detection device is now provided to eliminate the disadvantages of the existing device. Utility Model Content

[0006] The purpose of the utility model is to provide a pin shaft size detection device to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A pin shaft size detection device includes an operating table with a height measuring mechanism provided above the operating table; a plurality of clamping assemblies distributed in a circumferential array are provided on the operating table, the clamping assembly includes a clamping block, two through-extension rod mounting holes are provided on the side of the clamping block, a T-shaped block is provided at the bottom of the clamping block, and a support block is provided on the side of the clamping block away from the T-shaped block; a slider is also provided next to the clamping block, two extension rods are symmetrically provided on the side of the slider, and the bottom of the slider is also fixedly connected to a sliding base plate.

[0009] Preferably, the extension rod mounting hole located on the rear side of the clamping block cooperates with the slider on the left side; and the extension rod mounting hole located on the front side of the clamping block cooperates with the slider on the right side.

[0010] Preferably, a driving assembly is also provided at the tail of the clamping block, and the driving assembly includes a fixed plate fixedly connected to the upper surface of the operating table, the inner side of the fixed plate is connected to the fixed end of the second telescopic rod, and the telescopic end of the second telescopic rod is connected to the clamping block.

[0011] Preferably, the operating table includes a pin shaft mounting hole, a plurality of slider mounting grooves are distributed in a circular array outside the pin shaft mounting hole, a clamping block mounting groove is provided between adjacent slider mounting grooves, and a plurality of horizontal scale grooves are also evenly distributed on the operating table.

[0012] Preferably, the slider installation groove and the slider are matched, and the clamping block installation groove and the upper half of the T-shaped block are matched.

[0013] Preferably, the height measuring mechanism includes an L-shaped support plate fixedly connected to the upper surface of the operating table, the L-shaped support plate is provided with a plurality of vertical scale grooves, the top of the L-shaped support plate is connected to the fixed end of the first telescopic rod, the telescopic end of the first telescopic rod is also connected to a detection plate, and the side of the detection plate is also provided with a reading sleeve that cooperates with the vertical scale groove.

[0014] Preferably, a diameter detection mechanism is further provided on the upper surface of the operating table, and the diameter detection mechanism includes a U-shaped plate fixedly connected to the rear of the slider, and a pair of reading teeth are further provided on the inner side of the U-shaped plate.

[0015] Preferably, the reading teeth and the horizontal scale groove cooperate with each other.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model provides a clamping assembly, which can adjust the spacing of the clamping blocks according to the size of different batches of pin shafts, avoids the impact of constant replacement of the placement tube on the detection speed, and improves the detection efficiency; at the same time, the clamping block has a better fixing effect on the pin shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a structural diagram of the operating table of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the height measuring mechanism in the utility model.

[0021] Figure 4 This is a schematic diagram of the cooperation between the clamping assembly and the operating table in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the clamping assembly in the utility model.

[0023] Notes on the figure marks: 100, operating table; 101, pin shaft mounting hole; 102, slider mounting slot; 103, clamping block mounting slot; 104, horizontal scale slot; 200, height measuring mechanism; 201, L-shaped support plate; 202, vertical scale slot; 203, first telescopic rod; 204, detection plate; 205, reading sleeve; 300, clamping assembly; 301, clamping block; 302, extension rod mounting hole; 303, T-shaped block; 304, support block; 305, slider; 306, extension rod; 307, sliding base plate; 400, driving assembly; 401, fixing plate; 402, second telescopic rod; 500, diameter detection mechanism; 501, U-shaped plate; 502, reading tooth. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, Figure 1 and Figure 5 As shown, a pin shaft size detection device includes an operating table 100, and a height measuring mechanism 200 is provided above the operating table 100 for measuring the height of the pin shaft; a plurality of clamping assemblies 300 distributed in a circumferential array are provided on the operating table 100, and the clamping assembly 300 includes a clamping block 301, and two through extension rod mounting holes 302 are provided on the side of the clamping block 301, reserving space for the sliding of the extension rod 306; a T-shaped block 303 is provided at the bottom of the clamping block 301 for guiding and limiting the clamping block 301; a support block 304 is also provided on the side of the clamping block 301 away from the T-shaped block 303 for clamping the pin shaft; a slider 305 is also provided next to the clamping block 301; two extension rods 306 are symmetrically provided on the side of the slider 305, and a sliding base plate 307 is also fixedly connected to the bottom of the slider 305.

[0026] In this embodiment, when a clamping block 301 is pushed forward, the clamping block 301 will drive the extension rod 306 to slide in the extension rod mounting hole 302, and the extension rod 306 will move forward synchronously, thereby driving the slider 305 forward; in this process, the slider 305 will drive the adjacent clamping block 301 forward through the extension rod 306 symmetrically arranged on the other side; finally, the multiple clamping components 300 distributed in a circular array will gather toward the center of the pin shaft mounting hole 101.

[0027] In one embodiment, Figure 5 As shown, the extension rod mounting hole 302 located on the rear side of the clamping block 301 cooperates with the slider 305 on the left; the extension rod mounting hole 302 located on the front side of the clamping block 301 cooperates with the slider 305 on the right to avoid mutual interference between 306 located on both sides of the clamping block 301 during sliding.

[0028] In one embodiment, Figure 4 As shown, a driving assembly 400 is further provided at the tail of the clamping block 301, and the driving assembly 400 includes a fixed plate 401 fixedly connected to the upper surface of the operating table 100, the inner side of the fixed plate 401 is connected to the fixed end of the second telescopic rod 402, and the telescopic end of the second telescopic rod 402 is connected to the clamping block 301, which is used to drive the clamping block 301 to slide back and forth.

[0029] In one embodiment, Figure 2 As shown, the operating table 100 includes a pin mounting hole 101, which reserves space for the pin to pass through; a plurality of slider mounting grooves 102 are distributed in a circular array outside the pin mounting hole 101, and a clamping block mounting groove 103 is provided between adjacent slider mounting grooves 102. The operating table 100 also has a plurality of horizontal scale grooves 104 distributed equidistantly.

[0030] In one embodiment, Figure 4 As shown, the slider mounting groove 102 matches the slider 305 to limit the sliding of the slider 305; the clamping block mounting groove 103 matches the upper half of the T-shaped block 303 to fix the clamping block 301 on the surface of the operating table 100.

[0031] In one embodiment, Figure 3As shown, the height measuring mechanism 200 includes an L-shaped support plate 201 fixedly connected to the upper surface of the operating table 100, and a plurality of vertical scale grooves 202 are provided on the L-shaped support plate 201. The top of the L-shaped support plate 201 is connected to the fixed end of the first telescopic rod 203, and the telescopic end of the first telescopic rod 203 is also connected to a detection plate 204. A reading sleeve 205 that cooperates with the vertical scale groove 202 is also provided on the side of the detection plate 204. The detection plate 204 drives the reading sleeve 205 to move to the vertical scale groove 202 to read the height.

[0032] In this embodiment, the telescopic end of the first telescopic rod 203 drives the detection plate 204 to move. When it touches the pin, the reading sleeve 205 moves to a certain position of the scale groove 202, which is convenient for immediate reading.

[0033] In one embodiment, Figure 2 As shown, a diameter detection mechanism 500 is further provided on the upper surface of the operating table 100. The diameter detection mechanism 500 includes a U-shaped plate 501 fixedly connected to the rear of the slider 305. During the clamping process of the pin shaft of the slider 305, the U-shaped plate 501 is driven to move back and forth, thereby facilitating reading; a pair of reading teeth 502 are also provided on the inner side of the U-shaped plate 501.

[0034] In one embodiment, Figure 4 As shown, the reading teeth 502 and the horizontal scale groove 104 cooperate with each other, wherein the reading teeth 502 are triangular structures, and more accurate readings can be performed through the vertices of the triangle.

[0035] Working principle: First, place the pin to be tested on the support block 304, then start the second telescopic rod 402 to drive the clamping block 301 forward, and the clamping block 301 drives the clamping block 301 in the adjacent position to move synchronously through the slider 305, and finally make the multiple clamping components 300 distributed in the circular array gather to the center of the pin mounting hole 101 to complete the clamping. At the same time, the U-shaped plate 501 moves synchronously and cooperates with the horizontal scale groove 104 to read the pin diameter; at this time, start the first telescopic rod 203 again to move the detection plate 204. When it touches the pin, the reading sleeve 205 is used to read the reading to determine whether the height of the pin is qualified.

[0036] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A pin shaft size detection device, comprising an operating table (100), wherein a height measuring mechanism (200) is provided above the operating table (100); characterized in that: The operating table (100) is provided with a plurality of clamping assemblies (300) distributed in a circumferential array, and the clamping assembly (300) includes a clamping block (301), two extending rod mounting holes (302) are provided on the side of the clamping block (301), a T-shaped block (303) is provided at the bottom of the clamping block (301), and a supporting block (304) is provided on the side of the clamping block (301) away from the T-shaped block (303); a slider (305) is also provided next to the clamping block (301), two extending rods (306) are symmetrically provided on the side of the slider (305), and a sliding base plate (307) is fixedly connected to the bottom of the slider (305).

2. A pin shaft size detection device according to claim 1, characterized in that: The extension rod mounting hole (302) located at the rear side of the clamping block (301) cooperates with the slider (305) on the left side; the extension rod mounting hole (302) located at the front side of the clamping block (301) cooperates with the slider (305) on the right side.

3. A pin shaft size detection device according to claim 1, characterized in that: A driving assembly (400) is further provided at the tail of the clamping block (301), and the driving assembly (400) includes a fixing plate (401) fixedly connected to the upper surface of the operating table (100), the inner side of the fixing plate (401) is connected to the fixed end of the second telescopic rod (402), and the telescopic end of the second telescopic rod (402) is connected to the clamping block (301).

4. A pin shaft size detection device according to claim 1, characterized in that: The operating table (100) includes a pin shaft mounting hole (101), a plurality of slider mounting grooves (102) are distributed in a circumferential array outside the pin shaft mounting hole (101), a clamping block mounting groove (103) is provided between adjacent slider mounting grooves (102), and a plurality of horizontal scale grooves (104) are also distributed at equal intervals on the operating table (100).

5. A pin shaft size detection device according to claim 4, characterized in that: The slider installation groove (102) and the slider (305) are matched, and the clamping block installation groove (103) and the upper half of the T-shaped block (303) are matched.

6. A pin shaft size detection device according to claim 1, characterized in that: The height measuring mechanism (200) comprises an L-shaped support plate (201) fixedly connected to the upper surface of the operating table (100), the L-shaped support plate (201) being provided with a plurality of vertical scale grooves (202), the top of the L-shaped support plate (201) being connected to the fixed end of a first telescopic rod (203), the telescopic end of the first telescopic rod (203) being further connected to a detection plate (204), and a reading sleeve (205) cooperating with the vertical scale grooves (202) being further provided on the side of the detection plate (204).

7. The pin shaft size detection device according to claim 1, characterized in that: A diameter detection mechanism (500) is further provided on the upper surface of the operating table (100). The diameter detection mechanism (500) comprises a U-shaped plate (501) fixedly connected to the rear of the slider (305). A pair of reading teeth (502) are further provided on the inner side of the U-shaped plate (501).

8. A pin shaft size detection device according to claim 7, characterized in that: The reading teeth (502) and the horizontal scale groove (104) cooperate with each other.

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