Positioning device for gear machining

Abstract

The utility model discloses a positioning device for gear machining, which comprises a base (1), a groove (2) is arranged on the top surface of the base (1), and a rotating motor (3) is arranged in the groove (2). The rotating motor (3) is connected with a positioning base (4), the positioning base (4) is provided with a plurality of translation devices which are annularly and uniformly distributed, and each translation device is provided with a positioning piece (5); a pressure sensor (6) is installed on the side face, away from the center axis of the positioning base (4), of each positioning piece (5), and each pressure sensor (6) is electrically connected with the translation device. And auxiliary positioning devices are arranged on the two sides of the groove (2). The positioning device not only can improve the positioning accuracy, but also has the advantages of being good in machining effect, convenient to use, good in positioning effect, long in service life and high in use stability.

Description

Technical Field

[0001] The utility model relates to auxiliary equipment for gear processing, in particular to a positioning device for gear processing. Background Art

[0002] During the production of gears, in order to ensure the accuracy of processing, it is necessary to use a positioning device to position the gears; however, the existing positioning devices for gear processing are mostly centering and fixed integrated positioning devices. After long-term use, this type of positioning device will cause wear and damage due to the large force generated during the gear processing process. Wear or damage to the positioning device will lead to reduced positioning accuracy of the gear. In severe cases, gear offset will occur, which will affect the overall positioning accuracy. Therefore, the existing positioning devices for gear processing will have the problem of low positioning accuracy after long-term use. Utility Model Content

[0003] The purpose of the utility model is to provide a positioning device for gear processing, and the utility model has the advantage of high positioning accuracy.

[0004] The technical solution of the utility model is as follows: a positioning device for gear processing comprises a base, a groove is arranged on the top surface of the base, a rotating motor is arranged in the groove; a positioning base is connected to the rotating motor, a plurality of circular evenly distributed translation devices are arranged on the positioning base, and a positioning piece is installed on each translation device; a pressure sensor is installed on the side of each positioning piece away from the central axis of the positioning base, and each pressure sensor is electrically connected to the translation device; auxiliary positioning devices are arranged on both sides of the groove; the positioning piece is used to perform internal multi-point positioning and clamping work on the gear, and then the auxiliary positioning device is used to perform auxiliary positioning from the outside of the gear, thereby improving the positioning effect of the gear; Moreover, the pressure sensor can detect the contact position between the positioning part and the inner wall of the gear. It can not only detect the pressure during the positioning process to ensure that the moving distance of the positioning part remains consistent and the positioning accuracy is ensured; it can also perform pressure detection during the entire process of gear processing. When a large pressure change occurs, the translation device can be controlled to start in time to adjust the position of the gear to avoid the gear offset during the processing, thereby ensuring the processing effect; the positioning base is driven to rotate by a rotating motor, so that the entire positioning device can drive the gear to rotate, which facilitates subsequent processing work and is convenient for use.

[0005] In the aforementioned positioning device for gear processing, the translation device includes a translation frame, in which a ball screw is arranged; a servo motor is connected to the end of the ball screw; a translation seat is slidably mounted on the ball screw; the positioning piece is mounted on the top surface of the translation seat; the translation frame can be used to provide certain protection for the ball screw and the servo motor, thereby extending their service life.

[0006] In the aforementioned positioning device for gear processing, slide rails are provided on both inner side walls of the translation frame; slide grooves matching the slide rails are provided on the side surfaces of the translation seat; the slide rails and the slide grooves cooperate with each other to support and guide the movement of the translation seat, thereby improving the stability of use; and the setting of the slide grooves and the slide rails can transfer part of the pressure of the translation seat and the positioning member to the translation frame, thereby reducing the pressure on the ball screw and extending its service life.

[0007] In the aforementioned positioning device for gear processing, the auxiliary positioning device includes a cylinder, to which an auxiliary part is connected; the auxiliary part has an arc-shaped concave surface facing the side of the positioning base; the side of the auxiliary part is set as an arc-shaped concave surface, which can ensure the outer side positioning while ensuring the stable rotation of the gear, making it convenient to use.

[0008] In the aforementioned positioning device for gear processing, three translation devices are provided; the three translation devices can form a triangular positioning method, thereby improving the stability of positioning.

[0009] In the aforementioned positioning device for gear processing, the side surface of the positioning member away from the central axis of the positioning base is an arc surface; an installation groove is provided on the positioning member at the position corresponding to the pressure sensor, and a buffer layer is installed on each inner wall of the installation groove; the buffer layer can be used to provide buffer protection for the pressure sensor, thereby further extending its service life.

[0010] Compared with the prior art, the utility model improves the existing positioning device for gear processing, by arranging a plurality of translation devices on the positioning base, each of which is equipped with a positioning piece, and each of which is equipped with a pressure sensor. When positioning the gear, the gear is first placed on the positioning base, and all the positioning pieces pass through the center of the gear, and then the translation device is controlled to start, so that all the positioning pieces move away from each other, and the positioning pieces are used to perform multi-point positioning and clamping on the gear, thereby completing the positioning of the gear; and the pressure sensor can detect the contact position between the positioning piece and the inner wall of the gear, which can not only detect the pressure during the positioning process to ensure that the moving distance of the positioning piece remains consistent, but also ensure the positioning The accuracy of positioning can be ensured; at the same time, pressure detection can be carried out throughout the gear processing process. When a large pressure change occurs, the translation device can be controlled to start in time to adjust the position of the gear to avoid the gear offset during processing, thereby ensuring the processing effect; by arranging auxiliary positioning devices on both sides of the groove, the auxiliary positioning device can be used to complete the positioning work of the positioning piece and the positioning work can also be performed on the outside of the gear to complete the internal and external positioning of the gear, further ensuring the positioning effect of the gear; at the same time, by arranging a rotating motor on the base, the rotating motor can drive the positioning base to rotate, so that the entire positioning device can drive the gear to rotate, which is convenient for subsequent processing work and convenient for use. In addition, the utility model also arranges the ball screw and the servo motor in the translation frame by providing a translation frame, and the translation frame can be used to provide certain protection for the ball screw and the servo motor, thereby extending the service life; by providing a slide rail on the inner wall of the translation frame and a slide groove on the side of the translation seat, the slide rail and the slide groove cooperate with each other to support and guide the movement of the translation seat, thereby improving the stability of use; and the setting of the slide groove and the slide rail can transfer part of the pressure of the translation seat and the positioning member to the translation frame, thereby reducing the pressure on the ball screw and extending the service life; by setting the side of the auxiliary member into an arc-shaped concave surface, while ensuring the outer side positioning, the stable rotation of the gear can also be ensured, thereby facilitating the use; by providing three translation devices, a triangular positioning method can be formed by using the three translation devices, thereby improving the stability of positioning; by providing an installation groove on the positioning member and installing a buffer layer on the inner wall of the installation groove, the buffer layer can be used to provide buffer protection for the pressure sensor, thereby further extending the service life. Therefore, the utility model can not only improve the accuracy of positioning, but also has the advantages of good processing effect, convenient use, good positioning effect, long service life and high stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 1 is a schematic diagram of the structure of the translation device;

[0014] Figure 4 It is a structural schematic diagram of the translation seat.

[0015] The markings in the accompanying drawings are: 1-base, 2-groove, 3-rotating motor, 4-positioning base, 5-positioning piece, 6-pressure sensor, 7-translation frame, 8-ball screw, 9-servo motor, 10-slide rail, 11-slide groove, 12-cylinder, 13-auxiliary part, 14-mounting groove, 15-buffer layer. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0017] Embodiment. A positioning device for gear processing, comprising: Figures 1 to 4 As shown, it includes a base 1, a groove 2 is provided on the top surface of the base 1, and a rotating motor 3 is provided in the groove 2; a positioning base 4 is connected to the rotating motor 3, and a plurality of annular evenly distributed translation devices are provided on the positioning base 4, and a positioning member 5 is installed on each translation device; a pressure sensor 6 is installed on the side of each positioning member 5 away from the central axis of the positioning base 4, and each pressure sensor 6 is electrically connected to the translation device; auxiliary positioning devices are provided on both sides of the groove 2.

[0018] The translation device includes a translation frame 7, in which a ball screw 8 is arranged; a servo motor 9 is connected to the end of the ball screw 8; a translation seat is slidably installed on the ball screw 8; the positioning member 5 is installed on the top surface of the translation seat; slide rails 10 are arranged on the two inner side walls of the translation frame 7; the side surfaces of the translation seat are provided with slide grooves 11 matching with the slide rails 10; the auxiliary positioning device includes a cylinder 12, on which an auxiliary member 13 is connected; the auxiliary member 13 has an arc-shaped concave surface facing the side surface of the positioning base 4; three of the translation devices are provided; the side surface of the positioning member 5 away from the central axis of the positioning base 4 is an arc surface; a mounting groove 14 is provided at the position of the positioning member 5 corresponding to the pressure sensor 6, and a buffer layer 15 is installed on each inner side wall of the mounting groove 14.

[0019] Working principle: When performing the positioning work, first connect the entire positioning device to the external safe mains power, so that the rotating motor 3, the servo motor 9 and the pressure sensor 6 are in the power-on standby state (the pressure sensor 6 used in the utility model can be specifically of the type PX309-200A5V, PXM600MU-350BARGV or PXM600MU-70BARGV); then place the gear to be positioned on the positioning base 4, and make all the positioning parts 5 pass through the center hole of the gear, and then control all the servo motors 9 to start synchronously. After the servo motor 9 is started, it will drive the ball screw 8 to rotate, and the ball screw 8 will rotate. The movable translation seat translates along the slide rail 10, and the positioning member 5 is driven to move during the movement of the translation seat, so that the positioning member 5 slowly moves toward the inner wall of the gear, and the gear is positioned from the inside by using the positioning member 5; when the positioning member 5 contacts the inner wall of the gear, the pressure sensor 6 on the positioning member 5 detects the pressure value and sends it to an external controller (the controller can be set on the side of the base 1, and specifically a programmable controller of the model FX2C-20MRD, Cortex-R8, or Cortex-M7 can be used), and the controller can determine the positioning state of the positioning member 5 relative to the gear according to the data transmitted by the pressure sensor 6. Carry out detection; wait until the three positioning parts 5 are in contact with the inner wall of the gear at the same time and complete the internal positioning of the gear, then you can control the cylinder 12 to start. After the cylinder 12 is started, it will drive the auxiliary part 13 to move toward the gear, and use the auxiliary part 13 to further position the gear from the outside. The double positioning effect of inside and outside can achieve accurate positioning of the gear, so that subsequent processing of the gear can be carried out; when it is necessary to control the gear to rotate, you only need to control the starting time of the rotating motor 3 according to the required rotation angle. After the rotating motor 3 is started, it will drive the positioning base 4 to rotate. During the rotation of the positioning base 4, the positioning part 5 will drive the gear to rotate together. , thereby completing the angle adjustment of the processing position of the gear; at the same time, because the side surface of the auxiliary part 13 is arc-shaped, the auxiliary part 13 will not affect the rotation of the gear; during the entire processing process, the pressure sensor 6 will detect the pressure between the corresponding positioning part 5 and the gear in real time. When the pressure in one place continues to decrease or increase, the controller will determine that the gear is offset. During the whole time, the controller controls the corresponding servo motor 9 to start forward or reverse to adjust the position of the positioning part 5 until the pressure between all the positioning parts 5 and the pressure sensors 6 between the gears is the same, so as to ensure the continuous and accurate positioning of the gear and ensure the subsequent processing effect.

Claims

1. A positioning device for gear processing, characterized in that: The invention comprises a base (1), a groove (2) is provided on the top surface of the base (1), a rotating motor (3) is provided in the groove (2); the rotating motor (3) is connected to a positioning base (4), a plurality of circular evenly distributed translation devices are provided on the positioning base (4), and each translation device is installed with a positioning member (5); a pressure sensor (6) is installed on the side of each positioning member (5) away from the central axis of the positioning base (4), and each pressure sensor (6) is electrically connected to the translation device; auxiliary positioning devices are provided on both sides of the groove (2).

2. The positioning device for gear processing according to claim 1, characterized in that: The translation device comprises a translation frame (7), a ball screw (8) is arranged inside the translation frame (7); the end of the ball screw (8) is connected to a servo motor (9); a translation seat is slidably mounted on the ball screw (8); and the positioning member (5) is mounted on the top surface of the translation seat.

3. The positioning device for gear processing according to claim 2, characterized in that: Slide rails (10) are arranged on both inner side walls of the translation frame (7); and slide grooves (11) matching with the slide rails (10) are arranged on the side surfaces of the translation seat.

4. The positioning device for gear processing according to claim 1, characterized in that: The auxiliary positioning device comprises a cylinder (12), to which an auxiliary component (13) is connected; the auxiliary component (13) has an arc-shaped concave surface facing the side of the positioning base (4).

5. The positioning device for gear processing according to claim 1, characterized in that: The translation devices are provided in three numbers.

6. The positioning device for gear machining according to any one of claims 1 to 5, characterized in that: The side surface of the positioning member (5) away from the central axis of the positioning base (4) is an arc surface; a mounting groove (14) is provided at a position on the positioning member (5) corresponding to the pressure sensor (6), and a buffer layer (15) is installed on each inner side wall of the mounting groove (14).

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