Outer diameter dimension detection device for pin shaft processing

Abstract

The utility model discloses an outer diameter dimension detection device for pin shaft processing, which comprises a working table, a pin shaft and a detection probe, the pin shaft is positioned on the top surface of the working table, a lifting mechanism is mounted on the upper surface of the working table, and symmetrical first electric telescopic rods are arranged on the surface of the lifting mechanism; second electric telescopic rods located on the two sides of the pin shaft are arranged at the telescopic end of the first electric telescopic rod, the detection probe is fixedly installed on the end face of a telescopic opening of each second electric telescopic rod, and the first marking pen point abuts against the side wall of the pin shaft, so that the pin shaft can be marked in the detection process of the detection probe. When dents appear on the surface of the pin shaft, the second marking pen point is elastically pushed by the spring to enter the concave surface for marking, so that whether flaws exist on the surface of the pin shaft or not can be checked after detection is finished, the accuracy of a detection result can be conveniently judged, and defective products can be conveniently removed.

Description

Technical Field

[0001] The utility model relates to the field of pin shafts, in particular to an outer diameter size detection device for pin shaft processing. Background Art

[0002] Pins are a type of standardized fastener that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinges of two parts to form hinge connections, which are reliable in operation and easy to disassemble.

[0003] In the field of pin processing, accurate detection of outer diameter dimensions is crucial. Currently, existing outer diameter dimension detection devices for pin processing have the following main problems:

[0004] On the one hand, most of the existing detection devices can only perform dimensional detection and have relatively simple functions. In the actual production process, defects such as dents may appear on the outer surface of the pin shaft, but the existing detection devices are unable to mark the dented state of the outer surface. On the other hand, when there is a dent on the outer surface of the pin shaft, the existing detection device may detect the dented surface, resulting in inaccurate outer diameter detection results. The presence of the dent will interfere with the detection device's accurate measurement of the pin shaft's outer diameter, making the measurement result unable to truly reflect the actual outer diameter size of the pin shaft. Such inaccurate detection results may affect the judgment of product quality, and thus have an adverse effect on the entire production process and the performance of the final product.

[0005] Therefore, an outer diameter dimension detection device for pin shaft processing is proposed. Utility Model Content

[0006] In view of the above problems, the present invention provides an outer diameter dimension detection device for pin shaft processing to solve the problems raised in the above background technology.

[0007] The technical solution of the utility model is:

[0008] A device for detecting the outer diameter of a pin shaft for processing, comprising a workbench, a pin shaft, and a detection probe, wherein the pin shaft is located on the top surface of the workbench, a lifting mechanism is installed on the upper surface of the workbench, a symmetrical first electric telescopic rod is provided on the surface of the lifting mechanism, a second electric telescopic rod is provided on both sides of the pin shaft at the telescopic end of the first electric telescopic rod, the detection probe is fixedly installed on the end surface of the telescopic opening of the second electric telescopic rod, a first marking pen head is fixedly connected to the telescopic end of the second electric telescopic rod, an installation cavity is opened at the end of the first marking pen head away from the second electric telescopic rod, and the inner wall of the installation cavity is connected to the second marking pen head via an elastic member.

[0009] In a further technical solution, the lifting mechanism includes a third electric telescopic rod, which is fixedly connected to the top surface of one end of the workbench away from the pin shaft. The top surface of the telescopic end of the third electric telescopic rod is fixedly connected to a convex plate extending toward the pin shaft, and the bottom surface of one end of the convex plate is located above the pin shaft.

[0010] Through the above technical solution, it is convenient to confine the pin shaft between the convex plate and the workbench for detection.

[0011] In a further technical solution, bearings are fixedly installed on the opposite surfaces of the convex plate and the workbench, the inner wall of the bearing is fixedly connected to a cylinder, the top surface of the convex plate is fixedly connected to a motor, the output end of the motor is fixedly connected to one of the cylinders, and both ends of the pin shaft are tightly fitted with the cylinder.

[0012] Through the above technical solution, the pin shaft can be rotated during the clamping and limiting process, thereby improving the comprehensiveness of the detection.

[0013] In a further technical solution, the side wall of the convex plate is fixedly connected to a symmetrical mounting plate, the shell of the first electric telescopic rod is fixed to the inner wall of the mounting plate, the end of the second electric telescopic rod away from the detection probe is fixedly connected to a support plate, and the top surface of the support plate is fixedly connected to the telescopic end of the first electric telescopic rod.

[0014] Through the above technical solution, the overall stability of the second electric telescopic rod when the first electric telescopic rod is in use is improved.

[0015] In a further technical solution, the elastic member includes a baffle fixed to one end of the second marker pen head, a spring is fixedly connected between the surface of the baffle and the telescopic end of the second electric telescopic rod, and the spring is normally in a compressed state.

[0016] Through the above technical solution, when encountering a concave surface, the spring is released, so that the second marker pen tip extends into the concave surface.

[0017] In a further technical solution, the end of the second marker tip away from the baffle is conical, and the end away from the baffle is a small diameter end.

[0018] The above technical solution makes it easy to penetrate into narrow concave surfaces.

[0019] In a further technical solution, one end of the first marker pen tip away from the second electric telescopic rod is fixedly connected to a thin-walled groove, and the end of the thin-walled groove away from the first marker pen tip is concave in the middle.

[0020] Through the above technical solution, by providing a thin-walled groove, the first marker pen tip can be used to utilize the depression of the thin-walled groove to fit the surface of the pin shaft.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By placing the first marking pen tip against the side wall of the pin, the pin can be marked during the detection process of the detection probe. When a dent appears on the surface of the pin, the second marking pen tip is pushed into the concave surface by the spring elasticity to mark it. After the test is completed, it is possible to check whether there are any defects on the surface of the pin, thereby facilitating the judgment of the accuracy of the test results and also facilitating the removal of defective products.

[0023] 2. By providing the third electric telescopic rod, the second electric telescopic rod, and the concave thin-walled groove in the middle of the end surface of the first marker pen, the diameter and height of the pin shaft can be easily adjusted, thereby improving the detection effect;

[0024] 3. By setting up the motor and the cylinder, the pin shaft can be pressed down and rotated in conjunction with the third electric telescopic rod for detection, thereby achieving a comprehensive detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the first marker pen head of the utility model being located at the bottom of the pin shaft;

[0027] Figure 3 This is a schematic diagram of the installation structure of the first marker pen head of the utility model;

[0028] Figure 4 This is a schematic structural diagram of the second electric telescopic rod and the first marking pen head of the utility model;

[0029] Figure 5 It is a partial cross-sectional structural diagram of the first marking pen tip of the utility model.

[0030] Description of reference numerals:

[0031] 1. Workbench; 2. Pin; 3. Mounting plate; 4. First electric telescopic rod; 5. Support plate; 6. Second electric telescopic rod; 7. Detection probe; 8. First marker tip; 81. Thin-walled groove; 9. Mounting cavity; 10. Second marker tip; 11. Baffle; 12. Spring; 13. Third electric telescopic rod; 14. Convex plate; 15. Bearing; 16. Cylinder; 17. Motor. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Example:

[0036] See also Figure 1-5 A device for detecting the outer diameter of a pin shaft processing comprises a workbench 1, a pin shaft 2, and a detection probe 7. The pin shaft 2 is located on the top surface of the workbench 1. A lifting mechanism is installed on the upper surface of the workbench 1. A symmetrical first electric telescopic rod 4 is provided on the surface of the lifting mechanism. The telescopic end of the first electric telescopic rod 4 is provided with a second electric telescopic rod 6 located on both sides of the pin shaft 2. The detection probe 7 is fixedly installed on the end surface of the telescopic opening of the second electric telescopic rod 6. The telescopic end of the second electric telescopic rod 6 is fixedly connected to a first marking pen head 8. An installation cavity 9 is opened at the end of the first marking pen head 8 away from the second electric telescopic rod 6. The inner wall of the installation cavity 9 is connected to the second marking pen head 10 through an elastic member.

[0037] See also Figure 1 and Figure 2 The lifting mechanism includes a third electric telescopic rod 13, which is fixedly connected to the top surface of one end of the workbench 1 away from the pin shaft 2. The top surface of the telescopic end of the third electric telescopic rod 13 is fixedly connected with a convex plate 14 extending toward the pin shaft 2, and the bottom surface of one end of the convex plate 14 is located above the pin shaft 2.

[0038] It is convenient to restrict the pin shaft 2 between the convex plate 14 and the workbench 1 for detection.

[0039] See also Figure 2 and Figure 3The opposite surfaces of the convex plate 14 and the workbench 1 are fixedly installed with bearings 15, the inner wall of the bearing 15 is fixedly connected with a cylinder 16, the top surface of the convex plate 14 is fixedly connected with a motor 17, the output end of the motor 17 is fixedly connected to one of the cylinders 16, and both ends of the pin shaft 2 are tightly fitted with the cylinder 16.

[0040] The pin shaft 2 can be rotated during the process of being clamped and limited, thereby improving the comprehensiveness of the detection.

[0041] See also Figure 1 and Figure 2 The side wall of the convex plate 14 is fixedly connected to a symmetrical mounting plate 3, the shell of the first electric telescopic rod 4 is fixed to the inner wall of the mounting plate 3, and the end of the second electric telescopic rod 6 away from the detection probe 7 is fixedly connected to the support plate 5, and the top surface of the support plate 5 is fixedly connected to the telescopic end of the first electric telescopic rod 4.

[0042] The overall stability of the second electric telescopic rod 6 when the first electric telescopic rod 4 is in use is improved.

[0043] See also Figure 4 and Figure 5 The elastic member includes a baffle 11 fixed to one end of the second marker pen head 10, and a spring 12 is fixedly connected between the surface of the baffle 11 and the telescopic end of the second electric telescopic rod 6, and the spring 12 is normally in a compressed state.

[0044] When encountering a concave surface, the spring 12 is released, so that the second marker pen head 10 extends into the concave surface.

[0045] See also Figure 4 and Figure 5 The end of the second marker tip 10 away from the baffle 11 is tapered, and the end away from the baffle 11 is a small diameter end.

[0046] Convenient for penetrating into narrow concave surfaces.

[0047] See also Figure 4 and Figure 5 The end of the first marking pen head 8 away from the second electric telescopic rod 6 is fixedly connected to a thin-walled groove 81, and the end of the thin-walled groove 81 away from the first marking pen head 8 is concave in the middle.

[0048] By providing the thin-walled groove 81 , the first marking pen tip 8 can be used to fit the surface of the pin shaft 2 by utilizing the depression of the thin-walled groove 81 .

[0049] During operation, the pin 2 to be tested is placed on the top surface of the workbench 1 and is located below the convex plate 14. The third electric telescopic rod 13 is started, and the convex plate 14 fixedly connected to the top surface of the telescopic end of the third electric telescopic rod 13 moves downward to limit the pin 2 between the convex plate 14 and the workbench 1. At the same time, the cylinder 16 fixedly connected to the inner wall of the bearing 15 on the opposite side of the convex plate 14 and the workbench 1 is tightly fitted with both ends of the pin 2 to achieve clamping and limiting of the pin 2. Subsequently, the first electric telescopic rod 4 is started, and the position of the second electric telescopic rod 6 is adjusted so that the detection probe 7 and the first marker pen head 8 at the telescopic end of the second electric telescopic rod 6 are located on both sides of the pin 2. At this time, the detection probe 7 can start to detect the outer diameter of the pin 2. During the detection process, the first marker pen head 8 is against the side wall of the pin 2 and moves synchronously with the detection of the detection probe 7. The end away from the second electric telescopic rod 6 is fixedly connected with a thin-walled groove 81, and the end of the thin-walled groove 81 away from the first marking pen head 8 is a middle depression, which fits the surface of the pin shaft 2 and makes a preliminary mark on the pin shaft 2. When a dent appears on the surface of the pin shaft 2, the second marking pen head 10 comes into play. At this time, the spring 12 is released, pushing the baffle 11, thereby causing the second marking pen head 10 to move toward the concave surface. Since the end of the second marking pen head 10 away from the baffle 11 is conical and has a small diameter, it is convenient to penetrate into the narrow concave surface and mark the concave surface more clearly. At the same time, the motor 17 is started to drive the cylinder 16 to rotate, thereby rotating the pin shaft 2 clamped between the cylinders 16, and cooperating with the third electric telescopic rod 13, the second electric telescopic rod 6, the detection probe 7, the first marking pen head 8, and the second marking pen head 10 to comprehensively detect and mark the pin shaft 2.

[0050] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A device for detecting the outer diameter of a pin for machining, comprising a workbench (1), a pin (2), and a detection probe (7), wherein the pin (2) is located on the top surface of the workbench (1), and is characterized in that: A lifting mechanism is installed on the upper surface of the workbench (1), and a symmetrical first electric telescopic rod (4) is provided on the surface of the lifting mechanism. The telescopic end of the first electric telescopic rod (4) is provided with a second electric telescopic rod (6) located on both sides of the pin shaft (2). The detection probe (7) is fixedly installed on the end surface of the telescopic opening of the second electric telescopic rod (6). The telescopic end of the second electric telescopic rod (6) is fixedly connected to a first marking pen head (8). An installation cavity (9) is provided at one end of the first marking pen head (8) away from the second electric telescopic rod (6), and the inner wall of the installation cavity (9) is connected to a second marking pen head (10) via an elastic member.

2. The outer diameter dimension detection device for pin processing according to claim 1, characterized in that: The lifting mechanism comprises a third electric telescopic rod (13), the third electric telescopic rod (13) being fixedly connected to the top surface of one end of the workbench (1) away from the pin shaft (2), the top surface of the telescopic end of the third electric telescopic rod (13) being fixedly connected to a convex plate (14) extending toward the pin shaft (2), and the bottom surface of one end of the convex plate (14) being located above the pin shaft (2).

3. The outer diameter dimension detection device for pin processing according to claim 2, characterized in that: The facing surfaces of the convex plate (14) and the workbench (1) are both fixedly mounted with bearings (15), the inner wall of the bearing (15) is fixedly connected with a cylinder (16), the top surface of the convex plate (14) is fixedly connected with a motor (17), the output end of the motor (17) is fixedly connected to one of the cylinders (16), and both ends of the pin shaft (2) are tightly fitted with the cylinder (16).

4. The outer diameter dimension detection device for pin processing according to claim 2, characterized in that: A symmetrical mounting plate (3) is fixedly connected to the side wall of the convex plate (14); a housing of the first electric telescopic rod (4) is fixed to the inner wall of the mounting plate (3); an end of the second electric telescopic rod (6) away from the detection probe (7) is fixedly connected to a support plate (5); and a top surface of the support plate (5) is fixedly connected to the telescopic end of the first electric telescopic rod (4).

5. The outer diameter dimension detection device for pin processing according to claim 1, characterized in that: The elastic member comprises a baffle (11) fixed to one end of the second marker pen head (10); a spring (12) is fixedly connected between the surface of the baffle (11) and the telescopic end of the second electric telescopic rod (6); and the spring (12) is normally in a compressed state.

6. The outer diameter dimension detection device for pin processing according to claim 1, characterized in that: The end of the second marker pen head (10) away from the baffle (11) is tapered, and the end away from the baffle (11) is a small diameter end.

7. The outer diameter dimension detection device for pin processing according to claim 1, characterized in that: One end of the first marking pen head (8) away from the second electric telescopic rod (6) is fixedly connected to a thin-walled groove (81), and the end of the thin-walled groove (81) away from the first marking pen head (8) is concave in the middle.

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