External spline tensioning driving device

Abstract

The utility model provides an external spline tensioning driving device, relates to the technical field of external spline tensioning detection devices, and aims to solve the problems that conventional three-coordinate detection means and the like cannot meet the requirements of on-site rapid and accurate measurement, the on-site detection requirements of such parts are more and more urgent, and meanwhile, due to the particularity of the spline shape, the detection precision is higher. The spline positioning device comprises an air cylinder sliding table, the upper portion of the air cylinder sliding table is connected with a shell through a connecting block, a small synchronous belt wheel is rotatably installed in the shell, a large synchronous belt wheel is installed on the right side of the small synchronous belt wheel, and the small synchronous belt wheel and the large synchronous belt wheel are connected through a synchronous belt. And a servo motor is mounted on the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of external spline tension detection devices, in particular to an external spline tension driving device. Background Art

[0002] With the rapid development of my country's machinery manufacturing, the requirements for the inspection accuracy, roundness, and inspection efficiency of the products are getting higher and higher. In particular, the transmission spline inspection is more frequent. Conventional three-coordinate inspection methods cannot meet the needs of fast and accurate on-site measurement. The demand for on-site inspection of such parts is becoming more and more urgent. At the same time, due to the particularity of the spline shape, the measurement cannot meet the requirements of spline positioning. Therefore, it is particularly important to design an external spline tensioning drive device to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to solve the problem that conventional three-coordinate and other detection means in the prior art cannot meet the needs of fast and accurate on-site measurement, the demand for on-site detection of such parts is becoming more and more urgent, and at the same time, due to the particularity of the spline shape, the measurement cannot meet the requirements of spline positioning, and an external spline tensioning drive device is proposed.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an external spline tensioning drive device, comprising a cylinder slide, a shell is connected to the top of the cylinder slide through a connecting block, a small synchronous pulley is rotatably installed in the shell, a large synchronous pulley is installed on the right side of the small synchronous pulley, the small synchronous pulley and the large synchronous pulley are connected by a synchronous belt, a servo motor is installed on the shell, the servo motor is connected to the small synchronous pulley, a fixing ring is installed on the inner side of the large synchronous pulley, bearings are installed on both sides of the fixing ring, and a spline assembly is installed at the internal position of the fixing ring.

[0005] Preferably, the spline assembly includes an internal spline, and a cylindrical pin and a spring are fixedly connected to the internal spline.

[0006] Preferably, an airbag mounting plate is installed above the fixing ring, a tensioning airbag is installed between the airbag mounting plate and the fixing ring, and a sealing ring is installed between the fixing ring and the bearing.

[0007] Preferably, the fixing ring and bearing-related component structures are symmetrically distributed on the upper and lower sides of the spline assembly.

[0008] Preferably, an encoder connecting block is provided on the left side of the spline assembly, an encoder is installed and connected above the encoder connecting block, a travel switch is installed on the cylinder slide, an electrical signal connection is made between the travel switch and the cylinder slide, and an electrical signal connection is made between the encoder and the travel switch.

[0009] Compared with the prior art, the advantages and positive effects of the utility model are:

[0010] 1. In the utility model, during use, the cylinder slide stroke switch is used to monitor the spline insertion state, and the spline is positioned and driven, with reliable accuracy and fast measurement. Compared with conventional three-coordinate and other detection means that cannot meet the needs of fast positioning and measurement, the utility model adopts a technical solution to achieve the rapid positioning and detection needs of external splines, liberate the labor intensity of staff, realize semi-automatic detection of external splines, and improve the detection accuracy of external splines. The overall structure is compact and easy for staff to install and maintain. The structure has good stability and is not easy to be damaged, which reduces maintenance costs. It solves the problem that conventional three-coordinate and other detection means cannot meet the needs of fast and accurate measurement on site. The demand for on-site detection of such parts is becoming more and more urgent. At the same time, due to the particularity of the spline shape, the measurement cannot meet the requirements of spline positioning.

[0011] 2. In the utility model, when gas is introduced into the outer shell during use, the gas pushes the expansion airbag to squeeze the inner spline inward, so that the inner spline embraces the outer spline to be measured. Through the structural setting of the sealing ring, the inner spline is in a relatively sealed state when the fixed ring rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of an external spline tensioning drive device of the utility model;

[0013] Figure 2 for Figure 1 Sectional view in the AA direction;

[0014] Figure 3 The utility model is a top view of an external spline tensioning drive device.

[0015] Legend: 1. Cylinder slide; 101. Housing; 102. Connecting block; 2. Small synchronous pulley; 201. Large synchronous pulley; 202. Synchronous belt; 203. Servo motor; 3. Fixed ring; 301. Bearing; 302. Airbag mounting plate; 303. Tensioning airbag; 304. Sealing ring; 305. Encoder connecting block; 306. Encoder; 4. Spline assembly; 401. Internal spline; 402. Cylindrical pin; 403. Spring; 5. Travel switch. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0018] The utility model provides an external spline tensioning drive device, including a cylinder slide 1, a shell 101 is connected to the top of the cylinder slide 1 through a connecting block 102, a small synchronous pulley 2 is rotatably installed in the shell 101, a large synchronous pulley 201 is installed on the right side of the small synchronous pulley 2, the small synchronous pulley 2 and the large synchronous pulley 201 are connected through a synchronous belt 202, a servo motor 203 is installed on the shell 101, the servo motor 203 is connected to the small synchronous pulley 2, a fixed ring 3 is installed on the inner side of the large synchronous pulley 201, bearings 301 are installed on both sides of the fixed ring 3, and the fixed ring 3 and the bearing 301 related component structures are symmetrically distributed on the upper and lower sides of the spline component 4. On the side, a spline assembly 4 is installed at the inner position of the fixing ring 3, and the spline assembly 4 includes an inner spline 401, and a cylindrical pin 402 and a spring 403 are fixedly connected on the upper part of the inner spline 401. An encoder connecting block 305 is arranged on the left side of the spline assembly 4, and an encoder 306 is installed and connected on the upper part of the encoder connecting block 305. A travel switch 5 is installed on the cylinder slide 1, and the travel switch 5 is connected with the cylinder slide 1 by electrical signals, and the encoder 306 is connected with the travel switch 5 by electrical signals. The encoder 306 transmits real-time detection data to the travel switch 5, and the travel switch 5 transmits it back to the position of the cylinder slide 1 in the form of electrical signals, so as to facilitate timely relevant actions;

[0019] When the external spline tension driving device is actually used, the fixed ring 3 is internally sleeved with a spline assembly 4 and a tensioning airbag 303, and the spline assembly 4 is composed of an internal spline 401 with a bearing 301, a spring 403, and a cylindrical pin 402; bearings 301 and sealing rings 304 are installed on both sides of the fixed ring 3 to ensure that the fixed ring 3 can be rotated and sealed at the same time, and the fixed ring 3 and the bearing 301 are integrally installed on the housing 101. When gas is passed into the housing 101, the gas pushes the tensioning airbag 303 to squeeze the internal spline 401 inward, so that the internal spline 401 holds the external spline to be measured. At the same time, a servo motor 203 is provided on the housing 101 to drive the workpiece to rotate. The housing 101 is integrally installed on the cylinder slide 1. When the cylinder slide 1 moves to insert the workpiece, if it cannot be inserted, the cylinder slide 1 cannot reach the predetermined position, and the cylinder slide 1 travel switch 5 cannot obtain a signal. At this time, it can be known that the mechanism has not inserted the workpiece, otherwise, the workpiece has been inserted successfully. The utility model has the advantages of simple structure, stable performance and accurate positioning. It is suitable for transmission spline positioning and rotation drive measurement. The spline insertion state is monitored by the cylinder slide 1 stroke switch 5 to position the drive spline. The precision is reliable and the measurement is fast. Compared with conventional three-coordinate detection methods that cannot meet the needs of rapid positioning measurement, the technical solution adopted by the utility model can realize the rapid positioning detection needs of external splines, liberate the labor intensity of the staff, realize the semi-automatic detection of external splines, and improve the detection accuracy of external splines. The overall structure is compact and easy for the staff to install and maintain. The structure has good stability and is not easy to be damaged, thereby reducing the maintenance cost.

[0020] like Figure 1-3 As shown, an airbag mounting plate 302 is installed above the fixing ring 3, a tensioning airbag 303 is installed between the airbag mounting plate 302 and the fixing ring 3, and a sealing ring 304 is installed between the fixing ring 3 and the bearing 301.

[0021] The effect achieved by the entire embodiment 1 is that, during use, when gas is passed into the outer shell 101, the gas pushes the inflation airbag 303 to squeeze the inner spline 401 inward, so that the inner spline 401 embraces the outer spline to be measured, and through the structural setting of the sealing ring 304, the inner spline 401 is in a relatively sealed state when the fixed ring 3 rotates.

[0022] Working principle: The fixed ring is internally sleeved with a spline assembly and a tensioning airbag. The spline assembly is composed of an inner spline sleeved with a bearing, a spring, and a cylindrical pin. Bearings and sealing rings are installed on both sides of the fixed ring to ensure that the fixed ring can rotate and seal at the same time. The fixed ring and the bearing are installed on the outer shell as a whole. When gas is passed into the outer shell, the gas pushes the tensioning airbag to squeeze the inner spline inward, so that the inner spline hugs the outer spline to be measured. At the same time, a servo motor is provided on the outer shell to drive the workpiece to rotate. The outer shell is installed as a whole on the cylinder slide. When the cylinder slide moves to insert the workpiece, if it cannot be inserted, the cylinder slide cannot reach the predetermined position, and the cylinder slide travel switch cannot obtain a signal. At this time, it can be known that the mechanism has not inserted the workpiece. Otherwise, the workpiece has been inserted successfully. It has a simple structure, stable performance, and accurate positioning. It is suitable for transmission spline positioning and measurement of rotary drive.

Claims

1. An external spline tensioning drive device, comprising a cylinder slide (1), wherein the cylinder slide (1) is connected to a housing (101) via a connecting block (102) above, characterized in that: A small synchronous pulley (2) is rotatably mounted in the housing (101), a large synchronous pulley (201) is mounted on the right side of the small synchronous pulley (2), the small synchronous pulley (2) and the large synchronous pulley (201) are connected via a synchronous belt (202), a servo motor (203) is mounted on the housing (101), the servo motor (203) is connected to the small synchronous pulley (2), a fixing ring (3) is mounted on the inner side of the large synchronous pulley (201), bearings (301) are mounted on both sides of the fixing ring (3), and a spline assembly (4) is mounted at an inner position of the fixing ring (3).

2. An external spline tensioning drive device according to claim 1, characterized in that: The spline assembly (4) comprises an internal spline (401), and a cylindrical pin (402) and a spring (403) are fixedly connected to the internal spline (401).

3. The external spline tensioning drive device according to claim 1, characterized in that: An airbag mounting plate (302) is installed above the fixing ring (3), a tensioning airbag (303) is installed between the airbag mounting plate (302) and the fixing ring (3), and a sealing ring (304) is installed between the fixing ring (3) and the bearing (301).

4. The external spline tensioning drive device according to claim 1, characterized in that: The fixed ring (3) and the bearing (301) related component structures are symmetrically distributed on the upper and lower sides of the spline component (4).

5. The external spline tensioning drive device according to claim 1, characterized in that: An encoder connection block (305) is arranged on the left side of the spline assembly (4), an encoder (306) is installed and connected above the encoder connection block (305), a travel switch (5) is installed on the cylinder slide (1), an electrical signal connection is established between the travel switch (5) and the cylinder slide (1), and an electrical signal connection is established between the encoder (306) and the travel switch (5).

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