A concentricity measuring device with dual centers and dual rollers

Abstract

This utility model discloses a double-center and double-roller composite concentricity measuring device, applied to the concentricity measurement of shaft parts. It includes a base, a left center assembly, a right center assembly, and a double-roller rotary power mechanism. A linear slide rail is mounted on the top surface of the base along its length. The left center assembly is located on the left side of the base and slidably connected to the linear slide rail, while the right center assembly is located on the right side of the base and slidably connected to the linear slide rail. The double-roller rotary power mechanism is located on the right side of the right center assembly and slidably connected to the linear slide rail. This utility model features diverse functions and simple operation. Combining the double-center and double-roller composite measurement method, it can measure both shaft parts with center holes on both sides and shaft parts without double center holes, thus having a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of concentricity measuring equipment for shaft parts, specifically a double-center and double-roller composite concentricity measuring device. Background Technology

[0002] Shafts are a common type of hardware component, primarily used to support transmission parts, transmit torque, and bear loads. Based on their structural form, shafts can generally be classified into three categories: plain shafts, stepped shafts, and irregularly shaped shafts; or into solid shafts, hollow shafts, etc. During the manufacturing process of shafts, it is often necessary to measure the concentricity of shafts with or without double-center holes.

[0003] Currently available concentricity measuring devices often require the use of electronic measuring equipment such as grating rulers and laser scanners to measure the roundness value, outer diameter, and total length of shaft parts. This requires a high level of expertise. Shaft parts with center holes can only be measured using center-type concentricity measuring devices, while shaft parts without centers can only be measured using roller-type concentricity measuring devices. These devices have relatively limited functionality and a narrow range of applications. Therefore, a composite concentricity measuring device with double centers and double rollers is proposed to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a concentricity measuring device with a combination of double centers and double rollers, in order to solve the problems mentioned in the background art, such as the high level of professional operation required for concentricity measuring devices on the market, the relatively simple functions, and the narrow range of applications.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A double-center and double-roller composite concentricity measuring device is used for measuring the concentricity of shaft parts, including...

[0007] The base has linear slide rails installed along its length on its top surface;

[0008] The left tip assembly is located on the left side of the base and slidably connected to the linear slide rail. The left tip assembly consists of a left tip seat, a first tip installed on the right side of the left tip seat, and a handle mechanism fixed on the left side of the base and slidably connected to the left tip seat.

[0009] The right tip assembly is located on the right side of the base and slidably connected to the linear slide rail. The right tip assembly consists of a right tip seat, a second tip installed on the left side of the right tip seat, and a first drive motor fixed on the top of the right tip seat. The first drive motor drives the second tip to rotate through a first synchronous belt assembly. A storage space for placing the shaft-like part to be measured is formed between the first tip and the second tip.

[0010] A dual-roller rotary power mechanism is located to the right of the right center assembly and slidably connected to a linear slide rail. The dual-roller rotary power mechanism consists of a driven roller assembly, a driving roller assembly, a lower pressure roller, a pressure roller handle assembly, a shaft end positioning part, and a second drive motor. The second drive motor drives the driving roller assembly to rotate through a second synchronous belt assembly. A two-cell space is formed between the driving roller assembly and the driven roller assembly for placing the shaft-like part to be measured. The lower pressure roller is driven by the pressure roller handle assembly to press down and restrict the shaft-like part to be measured in the two-cell space. The right end face of the shaft-like part to be measured is close to the shaft end positioning part.

[0011] Furthermore, the first and second tips are positioned on the same horizontal plane, and the tips of the first and second tips are on the same horizontal extension line.

[0012] Furthermore, the handle mechanism includes a support plate connected to the left side of the top of the base, a second handle bracket horizontally mounted on the left side of the support plate, a handle grip rod mounted on the second handle bracket, a guide tube horizontally passing through the right side of the support plate, and a movable connecting rod horizontally extending into the guide tube. The right end of the movable connecting rod is fixedly connected to the left side of the left center seat. The left end of the movable connecting rod extends out of the left side of the guide tube and is connected to a connecting rod by a pin. The connecting rod is connected to the handle grip rod by another pin.

[0013] Furthermore, a compression spring is provided between the handle mechanism and the left center seat, which works in conjunction with the handle mechanism to open the left center seat.

[0014] Furthermore, the active roller assembly and the driven roller assembly are installed on the same horizontal plane. The active roller assembly consists of a first active roller and a second active roller, and the driven roller assembly consists of a first driven roller and a second driven roller. The left end of the first active roller corresponds laterally to the right end of the first driven roller, and the left end of the second active roller corresponds laterally to the right end of the second driven roller. The driven roller assembly can move to the corresponding position on the linear slide rail according to the length of the shaft part to be measured.

[0015] The beneficial effects of this utility model are as follows: This utility model has the characteristics of multiple functions and simple operation. Through the cooperation of the first center and the second center, it can measure shaft parts with center holes on both sides, ensuring the rotational accuracy of the shaft parts under test and greatly improving the measurement accuracy of the shaft parts under test. Furthermore, with the cooperation of the active roller assembly, the driven roller assembly, and the second drive motor, it can measure shaft parts without double center holes. In this way, the combination of double center and double roller composite measurement method can quickly measure the concentricity of shaft parts. It has a wide range of applications and is conducive to the promotion and use of this double center and double roller composite concentricity measuring device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the double-center and double-roller composite concentricity measuring device of this utility model.

[0017] Figure 2 This is an enlarged schematic diagram of a portion of the structure at point A of this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of a partial structure at point B of this utility model.

[0019] In the diagram: 1. Handle mechanism; 101. Support plate; 102. First handle holder; 103. Guide cylinder; 104. Movable connecting rod; 105. Connecting rod; 106. Pin; 107. Handle grip; 2. Compression spring part; 3. Left center seat; 4. First center; 5. Linear slide rail; 6. Base; 7. Second center; 701. Right center seat; 8. First drive motor; 9. First synchronous belt assembly; 10. Driven roller assembly; 1001. Driven roller No. 1; 1002. Driven roller No. 2; 11. Driven roller assembly; 1101. Driven roller No. 1; 1102. Driven roller No. 2; 12. Lower pressure roller; 13. Pressure roller handle assembly; 1301. Second handle holder; 14. Shaft end positioning part; 15. Second synchronous belt assembly; 16. Second drive motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This invention provides a technical solution for a double-center and double-roller composite concentricity measuring device, applied to the concentricity measurement of shaft parts. It includes a base 6, a left-center assembly, a right-center assembly, and a double-roller rotational power mechanism. A linear slide rail 5 is mounted along the length of the top surface of the base 6. The left-center assembly is located on the left side of the base 6 and slidably connected to the linear slide rail 5. The left-center assembly consists of a left-center seat 3, a first center 4 mounted on the right side of the left-center seat 3, and a handle mechanism 1 fixed to the left side of the base 6 and slidably connected to the left-center seat 3. The handle mechanism 1 includes a support plate 101 connected to the top left side of the base 6, a second handle 102 horizontally mounted on the left side of the support plate 101, a handle grip 107 mounted on the second handle 102, a guide cylinder 103 horizontally passing through the right side of the support plate 101, and a movable connecting rod 104 horizontally extending into the guide cylinder 103. The right end of the connecting rod 104 is fixedly connected to the left side of the left center seat 3. The left end of the movable connecting rod 104 extends out of the left side of the guide tube 103 and is connected to the connecting rod 105 by a pin 106. The connecting rod 105 is connected to the handle grip 107 by another pin 106. The main appearance of the support plate 101 is an inverted "T" shape. The movable connecting rod 104, the handle grip 107, the connecting rod 105, the pin 106 and the guide tube 103 can form a crank structure, which converts the pressure applied to the handle grip 107 to the left or right into the power to drive the movable connecting rod 104 to reciprocate linearly within the guide tube 103, thereby controlling the compression spring 2 to be compressed or rebound, thereby adjusting the position of the left center seat 3 on the linear slide rail 5. A compression spring 2 is provided between the handle mechanism 1 and the left center seat 3. The compression spring 2 works with the handle mechanism 1 to open the left center seat 3.

[0022] In this embodiment, the right tip assembly is located on the right side of the base 6 and slidably connected to the linear slide rail 5. The right tip assembly consists of a right tip seat 701, a second tip 7 installed on the left side of the right tip seat 701, and a first drive motor 8 fixed on the top of the right tip seat 701. The first drive motor 8 drives the second tip 7 to rotate through the first synchronous belt assembly 9. A storage space for placing the shaft-like part to be measured is formed between the first tip 4 and the second tip 7. The installation positions of the first tip 4 and the second tip 7 are on the same horizontal plane, and the tip of the first tip 4 and the tip of the second tip 7 are on the same horizontal extension line. The first tip 4 and the second tip 7 can be, but are not limited to, 60-degree tips, 40-degree tips or 90-degree tips. Preferably, in this embodiment, the first tip 4 and the second tip 7 can be 60-degree tips.

[0023] In this embodiment, the aforementioned dual-roller rotational power mechanism is located on the right side of the right-center assembly and slidably connected to the linear slide rail 5. The dual-roller rotational power mechanism consists of a driven roller assembly 10, a driving roller assembly 11, a lower pressure roller 12, a pressure roller handle assembly 13, a shaft end positioning part 14, and a second drive motor 16. The second drive motor 16 drives the driving roller assembly 11 to rotate via a second synchronous belt assembly 15. The pressure roller handle assembly 13 has a second handle 1301. A two-cell space for placing the shaft-like part to be measured is formed between the driving roller assembly 11 and the driven roller assembly 10. The lower pressure roller 12 is driven by the pressure roller handle assembly 13 to press down and restrict the shaft-like part to be measured within the two-cell space. The right end face of the shaft part to be measured is close to the shaft end positioning part 14. It should be noted that the active roller assembly 11 and the driven roller assembly 10 are installed on the same horizontal plane. The active roller assembly 11 consists of a first active roller 1101 and a second active roller 1102, and the driven roller assembly 10 consists of a first driven roller 1001 and a second driven roller 1002. The left end of the first active roller 1101 corresponds laterally to the right end of the first driven roller 1001, and the left end of the second active roller 1102 corresponds laterally to the right end of the second driven roller 1002. The driven roller assembly 10 can be moved to the corresponding position on the linear slide rail 5 according to the length of the shaft part to be measured.

[0024] This is a double-center and double-roller composite concentricity measuring device. The principle of double-center concentricity measurement is as follows: When the shaft part to be measured is placed in the device, the handle mechanism 1 is pressed, and the handle lever 107 pulls the movable connecting rod along the inner cavity of the guide cylinder towards the first handle frame, thereby compressing the compression spring part 2. The left center seat 3 and the first center 4 move to the left, making it convenient to place and pick up the shaft part to be measured. The shaft part to be measured is placed in a storage space formed between the first center 4 and the second center 7. The second center 7 is driven by the first drive motor 8, and the first drive motor 8 and the first synchronous belt assembly 9 are fixed to each other. The distance between the first center 7 and the first center 4 can be adjusted on the linear slide rail 5 according to the length of the shaft part to be measured. During operation, the first drive motor 8 drives the second center 7 and the first center 4 to rotate through the first synchronous belt assembly 9, which in turn drives the shaft part to be measured to rotate. The concentricity of the second center 7 and the first center 4 can ensure the rotational accuracy of the shaft part to be measured. Among them, the double-center concentricity measurement can measure shaft parts with center holes on both sides.

[0025] The principle of the dual-roller concentricity measurement is as follows: After the driven roller assembly 10 moves to the corresponding position on the linear slide rail 5 according to the length of the shaft part to be measured, during operation, the pressure roller handle assembly 13 is pressed down, and the lower pressure roller 12 is lifted to place the shaft part to be measured. The end face of the shaft part to be measured is pressed against the shaft end positioning part 14. By lifting the pressure roller handle assembly 13 upward, the lower pressure roller 12 is lowered, and the second drive motor 16 is started to drive the active roller assembly 11 to rotate through the second synchronous belt assembly 15. Thus, the shaft part to be measured between the driven roller assembly 10 and the active roller assembly 11 is driven to rotate. Among them, the dual-roller concentricity measurement can measure shaft parts without double center holes.

[0026] It should be noted that the first drive motor 8 and the second drive motor 16 mentioned can be, but are not limited to, commonly used YBP / YP type motors or X / V type motors. Their structure and principle are well-known technologies on the market, so they will not be described in detail here.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-top and double-roller combined concentricity measuring device applied to concentricity measurement of shaft parts, characterized in that: include The base has linear slide rails installed along its length on its top surface; The left tip assembly is located on the left side of the base and slidably connected to the linear slide rail. The left tip assembly consists of a left tip seat, a first tip installed on the right side of the left tip seat, and a handle mechanism fixed on the left side of the base and slidably connected to the left tip seat. The right tip assembly is located on the right side of the base and slidably connected to the linear slide rail. The right tip assembly consists of a right tip seat, a second tip installed on the left side of the right tip seat, and a first drive motor fixed on the top of the right tip seat. The first drive motor drives the second tip to rotate through a first synchronous belt assembly. A storage space for placing the shaft-like part to be measured is formed between the first tip and the second tip. A dual-roller rotary power mechanism is located to the right of the right center assembly and slidably connected to a linear slide rail. The dual-roller rotary power mechanism consists of a driven roller assembly, a driving roller assembly, a lower pressure roller, a pressure roller handle assembly, a shaft end positioning part, and a second drive motor. The second drive motor drives the driving roller assembly to rotate through a second synchronous belt assembly. A two-cell space is formed between the driving roller assembly and the driven roller assembly for placing the shaft-like part to be measured. The lower pressure roller is driven by the pressure roller handle assembly to press down and restrict the shaft-like part to be measured in the two-cell space. The right end face of the shaft-like part to be measured is close to the shaft end positioning part.

2. The dual-top and dual-roller concentricity measuring device of claim 1, wherein: The first and second tips are installed on the same horizontal plane, and the center of the first tip and the center of the second tip are on the same horizontal extension line.

3. The dual-top and dual-roller concentricity measuring device of claim 1, wherein: The handle mechanism includes a support plate connected to the left side of the top of the base, a second handle bracket horizontally mounted on the left side of the support plate, a handle grip mounted on the second handle bracket, a guide tube horizontally passing through the right side of the support plate, and a movable connecting rod horizontally extending into the guide tube. The right end of the movable connecting rod is fixedly connected to the left side of the left center seat. The left end of the movable connecting rod extends out of the left side of the guide tube and is connected to a connecting rod by a pin. The connecting rod is connected to the handle grip by another pin.

4. The dual-die and dual-roller concentricity measuring device of claim 1, wherein: A compression spring is provided between the handle mechanism and the left center seat, and the compression spring works with the handle mechanism to open the left center seat.

5. The dual-die and dual-roller concentricity measuring device of claim 1, wherein: The active roller assembly and the driven roller assembly are installed on the same horizontal plane. The active roller assembly consists of a first active roller and a second active roller, and the driven roller assembly consists of a first driven roller and a second driven roller. The left end of the first active roller corresponds laterally to the right end of the first driven roller, and the left end of the second active roller corresponds laterally to the right end of the second driven roller. The driven roller assembly can move to the corresponding position on the linear slide rail according to the length of the shaft part to be measured.

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