Detection jig for hollow shaft detection

Abstract

The utility model discloses a detection tool for hollow shaft detection, which belongs to the field of hollow shaft detection, and comprises a bottom plate, a positioning assembly arranged at the upper end of the bottom plate, a driving assembly arranged at the right side of the positioning assembly and arranged at the upper end of the bottom plate, and a detection assembly arranged at one side, close to the positioning assembly, of the driving assembly. An installation assembly is arranged between the detection assembly and the driving assembly, the driving assembly is externally connected with a power source, a switch is turned on, the positioning assembly comprises two positioning rods arranged front and back, positioning blocks slidably connected with the positioning rods are arranged at the outer ends of the positioning rods in a penetrating mode, and a bandage is arranged between the two positioning blocks. The C-shaped plate and the embedded plate are pushed to move towards the interior of the hollow shaft and reset, whether the inner diameters of the hollow shaft are uniform or not is judged by observing whether the marking pen leaves a mark or not, the whole detection process is convenient and simple, and the detection result is easy to judge.

Description

Technical Field

[0001] The utility model relates to the field of hollow shaft detection, and more specifically, to a detection jig used for hollow shaft detection. Background Art

[0002] A hollow shaft means that there is a through hole in the center of the shaft body, and an internal keyway is opened in the through hole. The outer surface of the shaft body is processed with a stepped cylinder and an external keyway. According to the analysis of material mechanics, when the shaft transmits torque, from the radial cross-section, the effect of transmitting effective torque is greater the further outward the shaft is. When the shaft needs to transmit a larger torque, a thicker shaft diameter is required. Since the effect of transmitting torque at the shaft center is relatively small, a hollow shaft is generally used to reduce the weight of the shaft.

[0003] Before the hollow shaft leaves the factory, it needs to be tested in many aspects, including weight, hardness, size, etc. Hardness is the bearing capacity. In addition to the material itself, the factors that determine the hardness of the hollow shaft are whether the inner diameter is regular and uniform.

[0004] To this end, a detection fixture for hollow shaft detection is proposed to solve some problems existing in the above-mentioned prior art. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a detection jig for hollow shaft detection, which is characterized by connecting the drive component to an external power supply and turning on the switch, pushing the C-shaped plate and the embedded plate to move toward the inside of the hollow shaft and reset, and finally observing whether the marker pen leaves a mark to determine whether the inner diameter of the hollow shaft is uniform. The entire detection process is convenient and simple, and the detection results are also easy to judge.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A detection fixture for hollow shaft detection includes a base plate, a positioning component is provided on the upper end of the base plate, a driving component is provided on the upper end of the base plate and is located on the right side of the positioning component, a detection component is provided on the side of the driving component close to the positioning component, and an installation component is provided between the detection component and the driving component.

[0010] Furthermore, the positioning assembly includes two positioning rods arranged in front and behind, and a positioning block slidingly connected to the outer end of the positioning rod is provided through it, a strap is provided between the two positioning blocks, and a positioning pin threadedly connected to the outer end of the positioning block is provided through it, and a plurality of threaded holes matching the positioning pins are opened at the outer end of the positioning rod.

[0011] Furthermore, the driving assembly includes an electric telescopic rod, and a controller electrically connected to the electric telescopic rod is provided at the outer end of the electric telescopic rod.

[0012] Furthermore, the mounting assembly includes a slide rail fixedly connected to the electric telescopic rod, and two sliders are slidably connected inside the slide rail.

[0013] Furthermore, the detection component includes a C-type plate, an inner embedded plate is inserted inside the C-type plate, a compression spring is arranged between the inner embedded plate and the C-type plate, a side plate is arranged at the end of the inner embedded plate away from the driving component, an outer tube is arranged at the end of the side plate close to the C-type plate, and a marker pen is arranged inside the outer tube.

[0014] Furthermore, a limiting groove is provided on the outer wall of the outer tube, and a limiting block fixedly connected to the marking pen is slidably connected inside the limiting groove.

[0015] Furthermore, a plastic plate adapted to the marker pen is provided at one end of the C-shaped plate close to the side plate, and a rubber eraser is rotatably connected to the plastic plate at the outer end of the C-shaped plate.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution is to connect the drive assembly to an external power source and turn on the switch, push the C-type plate and the embedded plate to move inside the hollow shaft and reset them, and finally observe whether the marker pen leaves a mark to determine whether the inner diameter of the hollow shaft is uniform. The entire detection process is convenient and simple, and the detection results are also easy to judge.

[0019] (2) This solution can limit the position of the marker pen by setting a limit groove and a limit block to prevent the marker pen from being separated from the outer tube. The setting of the plastic plate can prevent the handwriting from affecting the C-shaped plate, which is difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the detection component structure for this application;

[0021] Figure 2 For this application, see the structural diagram;

[0022] Figure 3 This is a schematic diagram of the drive component structure for this application;

[0023] Figure 4 For this application Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0024] Description of the numbers in the figure:

[0025] 1. Base plate; 2. Positioning rod; 3. Positioning block; 4. Strap; 5. Positioning pin; 6. Drive assembly; 7. Electric telescopic rod; 8. Controller; 10. Slide rail; 11. Slider; 12. Detection assembly; 13. C-type plate; 14. Inner plate; 15. Compression spring; 16. Side plate; 17. Outer tube; 18. Marker pen; 19. Plastic plate; 20. Rubber eraser; 21. Limit groove; 22. Limit block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" 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. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Example 1

[0030] See also Figure 1-4 A detection fixture for hollow shaft detection includes a base plate 1, a positioning component is provided on the upper end of the base plate 1, a driving component is provided on the upper end of the base plate 1 and is located on the right side of the positioning component, a detection component 12 is provided on the side of the driving component close to the positioning component, and an installation component is provided between the detection component 12 and the driving component.

[0031] See also Figure 2The positioning assembly includes two positioning rods 2 arranged in front and behind. The outer ends of the positioning rods 2 are penetrated by positioning blocks 3 that are slidably connected to them. A strap 4 is provided between the two positioning blocks 3. The outer ends of the positioning blocks 3 are penetrated by positioning pins 5 that are threadedly connected to them. The outer ends of the positioning rods 2 are provided with multiple threaded holes that are compatible with the positioning pins 5. The user can fix the strap 4 by inserting the positioning pins 5 into the threaded holes at different positions, so that it is suitable for hollow shafts of different diameters.

[0032] See also Figure 3 The driving component includes an electric telescopic rod 7, and a controller 8 electrically connected to the outer end of the electric telescopic rod 7 is provided. The electric telescopic rod 7 can push the detection component 12 to move and reset. The controller 8 can control the moving distance of the electric telescopic rod 7. The installation component includes a slide rail 10 fixedly connected to the electric telescopic rod 7. The slide rail 10 has two sliders 11 slidably connected inside. The two sliders 11 are fixedly connected to the C-shaped plate 13 and the inner embedded plate 14 respectively.

[0033] See also Figure 1 The detection component 12 includes a C-shaped plate 13, an inner plate 14 is inserted into the C-shaped plate 13, a compression spring 15 is arranged between the inner plate 14 and the C-shaped plate 13, a side plate 16 is provided at the end of the inner plate 14 away from the driving component, and an outer tube 17 is provided at the end of the side plate 16 close to the C-shaped plate 13, and a marker pen 18 is arranged inside the outer tube 17.

[0034] Example 2

[0035] The present invention provides a detection fixture for hollow shaft detection, wherein the components identical or corresponding to those in Example 1 are marked with the corresponding reference numerals in Example 1. For simplicity, only the differences from Example 1 are described below. Figure 4 The outer wall of the outer tube 17 is provided with a limiting groove 21, and the limiting groove 21 is slidably connected to a limiting block 22 fixedly connected to the marker 18. The limiting groove 21 and the limiting block 22 cooperate with each other to realize the positioning of the marker 18 to prevent the marker 18 from being separated from the outer tube 17. A plastic plate 19 adapted to the marker 18 is provided at one end of the C-shaped plate 13 close to the side plate 16. The outer end of the C-shaped plate 13 is rotatably connected to a rubber eraser 20 of the plastic plate 19. The setting of the plastic plate 19 prevents handwriting from acting on the C-shaped plate 13. The rubber eraser 20 can wipe the handwriting on the plastic plate 19 to avoid affecting the next use.

[0036] Working principle: The user first places the hollow shaft to be tested on the upper end of the base plate 1, fixes it with the positioning component, then connects the driving component 6 to an external power source and turns on the switch, and pushes the C-type plate 13 and the inner embedded plate 14 to move toward the inside of the hollow shaft. If the inner diameter becomes larger, the elastic force of the compression spring 15 will push the C-type plate 13 and the inner embedded plate 14 away from each other. If the inner diameter becomes smaller, the C-type plate 13 and the inner embedded plate 14 will move closer to each other under the squeezing. Finally, after the driving component is reset, observe whether the marker 18 leaves a sliding handwriting number to determine whether the inner diameter of the hollow shaft is uniform. The entire detection process is convenient and simple, and the detection results are also easy to judge.

[0037] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A detection jig for hollow shaft detection, comprising a base plate (1), characterized in that: A positioning assembly is provided at the upper end of the base plate (1), a driving assembly is provided at the upper end of the base plate (1) and is located on the right side of the positioning assembly, a detection assembly (12) is provided on the side of the driving assembly close to the positioning assembly, and a mounting assembly is provided between the detection assembly (12) and the driving assembly.

2. The detection jig for hollow shaft detection according to claim 1, characterized in that: The positioning assembly comprises two positioning rods (2) arranged front and back, the outer ends of the positioning rods (2) are penetrated by positioning blocks (3) slidably connected thereto, a binding strap (4) is provided between the two positioning blocks (3), the outer ends of the positioning blocks (3) are penetrated by positioning pins (5) threadedly connected thereto, and the outer ends of the positioning rods (2) are provided with a plurality of threaded holes adapted to the positioning pins (5).

3. The detection jig for hollow shaft detection according to claim 1, characterized in that: The driving assembly comprises an electric telescopic rod (7), and a controller (8) electrically connected to the electric telescopic rod (7) is provided at the outer end thereof.

4. The detection jig for hollow shaft detection according to claim 3, characterized in that: The mounting assembly comprises a slide rail (10) fixedly connected to the electric telescopic rod (7), and two sliders (11) are slidably connected inside the slide rail (10).

5. The detection jig for hollow shaft detection according to claim 1, characterized in that: The detection assembly (12) comprises a C-shaped plate (13), an inner plate (14) is inserted into the interior of the C-shaped plate (13), a compression spring (15) is provided between the inner plate (14) and the C-shaped plate (13), a side plate (16) is provided at one end of the inner plate (14) away from the driving assembly, an outer tube (17) is provided at one end of the side plate (16) close to the C-shaped plate (13), and a marker (18) is provided inside the outer tube (17).

6. The detection jig for hollow shaft detection according to claim 5, characterized in that: A limiting groove (21) is provided on the outer wall of the outer tube (17), and a limiting block (22) fixedly connected to the marking pen (18) is slidably connected inside the limiting groove (21).

7. The detection jig for hollow shaft detection according to claim 5, characterized in that: A plastic plate (19) adapted to the marking pen (18) is provided at one end of the C-shaped plate (13) close to the side plate (16), and a rubber eraser (20) is rotatably connected to the plastic plate (19) at the outer end of the C-shaped plate (13).

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