Tooth aligning device of numerical control gear hobbing machine

Abstract

The utility model discloses a gear aligning device of a numerical control gear hobbing machine, which comprises a main body mechanism, the main body mechanism comprises a structural frame, a movable seat slidably sleeved on the structural frame, a measuring piece rotatably mounted on the movable seat, an angle sensor fixed at the top end of the movable seat and connected with the measuring piece, a red and green alarm lamp mounted at the top end of the movable seat, and an electric telescopic rod mounted on one side of the structural frame and fixedly connected with the movable seat; the stand column is arranged on one side of the structural frame, one end of the lateral supporting piece is fixed to the end of the structural frame, the other end of the lateral supporting piece is embedded in the stand column, the driving piece is installed on the stand column and penetrates through the lateral supporting piece, and the structural frame is used for installing the movable base and limiting movement of the movable base. And the movable seat comprises a U-shaped plate arranged on the inner side of the structural frame, supports symmetrically fixed to the ends of the U-shaped plate and a plurality of sleeves symmetrically fixed to the two sides of the U-shaped plate, and the tooth alignment device of the numerical control gear hobbing machine has the advantages of being rapid and accurate in tooth alignment and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control gear hobbing machines, in particular to a gear alignment device for numerical control gear hobbing machines. Background Art

[0002] A CNC gear hobbing machine is a machine tool that processes gears using the generating method. During the gear processing process, after rough cutting or semi-finishing, the gear is removed from the machine tool for quenching or other process treatments. After quenching or other process treatments, the gear is clamped again for finishing. At this time, the hob and the workpiece must be aligned (the hob teeth match the tooth grooves of the machined part), which is called secondary tool setting. Secondary tool setting is one of the complex process preparations in gear hobbing.

[0003] The secondary tool setting operation of traditional CNC gear hobbing machines is based on production experience, and the alignment of the hob and the workpiece is determined by visual inspection. Large tooth profile errors often occur. It is not only difficult to achieve precise tool setting by visual inspection, but also time-consuming and labor-intensive. It is even more difficult for batch processing of parts. Therefore, a gear setting device for CNC gear hobbing machines is urgently needed. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted by the present invention is: a gear alignment device for a CNC gear hobbing machine, comprising: a main mechanism, the main mechanism including a structural frame, a movable seat slidably sleeved on the structural frame, a measuring piece rotatably mounted on the movable seat, an angle sensor fixed on the top of the movable seat and connected to the measuring piece, a red and green alarm light mounted on the top of the movable seat, an electric telescopic rod mounted on one side of the structural frame and with its end fixedly connected to the movable seat, a column arranged on one side of the structural frame, a lateral support member with one end fixed to the end of the structural frame and the other end embedded in the column, and a driving member mounted on the column and passing through the lateral support member.

[0006] The measuring piece comprises a rotating seat rotatably arranged on a movable seat, rotating shafts symmetrically fixed on both sides of the rotating seat, a spring sleeved on the rotating shafts, and a probe fixed on one side of the rotating seat.

[0007] In a preferred example, the present invention can be further configured as follows: the movable seat includes a U-shaped plate arranged on the inner side of the structural frame, a support symmetrically fixed to the end of the U-shaped plate, and a plurality of sleeves symmetrically fixed to both sides of the U-shaped plate, and the sleeves are slidably sleeved on the structural frame.

[0008] In a preferred example, the present invention can be further configured as follows: a circular groove is opened on the inner side surface of the support, the rotating shaft is rotatably engaged in the circular groove, and one end of the mainspring is fixed on the rotating shaft, and the other end is fixed to the inner wall of the circular groove, and the mainsprings on the rotating shafts on both sides are arranged opposite to each other.

[0009] In a preferred example, the present invention can be further configured as follows: a groove is opened on one side of the column, and the lateral support member includes a lateral bracket with one end fixed to the end of the structural frame and the other end slidingly sleeved on the column, and a threaded sleeve fixed to the end of the lateral bracket and extending into the groove.

[0010] In a preferred example, the present invention can be further configured as follows: the driving member includes a threaded rod rotatably installed in the groove and a motor installed at the top of the column with a shaft fixedly connected to the end of the threaded rod.

[0011] In a preferred example, the present invention can be further configured as follows: the threaded rod passes through the threaded sleeve, and the threaded rod and the threaded sleeve are engaged with each other.

[0012] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0013] When the gear is not aligned with the gear teeth, the end of the probe rod will slide to one side along the inclined surface of the gear groove, that is, drive the rotating seat to rotate. At this time, the angle sensor detects that the rotating seat is rotated, and it can be judged that the gear groove is not aligned with the gear teeth of the hob. The red and green warning lights emit red light, and the worker can slowly rotate the gear. When the probe rod does not deviate to one side during the process of extending into the gear groove, the gear groove is aligned with the gear teeth of the hob, and the red and green warning lights emit green light. Through the above arrangement, the gear groove and the gear hob can be quickly and accurately aligned, thereby improving the processing efficiency of the gear, reducing the labor intensity of the workers, and further increasing the practical performance.

[0014] 2. In the utility model, a column is installed on one side of the structural frame, and a lateral support member is provided. One end of the lateral support member is fixed to the end of the structural frame, and the other end is embedded in the column. At the same time, a driving member is installed on the column to pass through the lateral support member. The driving member drives the lateral support member to move up and down, that is, drives the structural frame and the components installed on the structural frame to move up and down. Through this arrangement, the structural frame, movable seat and other components automatically move downward after the tooth groove is aligned with the gear hobbing cutter, avoiding occupying space and affecting the processing of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2It is a partial structural diagram of the utility model;

[0017] Figure 3 This is a partial structural explosion diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the driving component structure of the present utility model.

[0019] Reference numerals:

[0020] 100. Main body; 110. Structural frame; 120. Movable seat; 121. U-shaped plate; 122. Support; 1221. Circular groove; 123. Sleeve; 130. Measuring piece; 131. Rotating seat; 132. Rotating shaft; 133. Spring; 134. Probe rod; 140. Angle sensor; 150. Red and green warning lights; 160. Electric telescopic rod; 170. Column; 171. Groove; 180. Lateral support member; 181. Lateral bracket; 182. Threaded sleeve; 190. Driving member; 191. Threaded rod; 192. Motor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0022] Some embodiments of the present invention are described below with reference to the accompanying drawings.

[0023] Example 1:

[0024] Combine Figure 1-4 As shown, this embodiment provides a gear alignment device for a CNC gear hobbing machine, including: a main body mechanism 100.

[0025] Among them, the main mechanism 100 includes a structural frame 110, a movable seat 120 slidably sleeved on the structural frame 110, a measuring piece 130 rotatably mounted on the movable seat 120, an angle sensor 140 fixed on the top of the movable seat 120 and connected to the measuring piece 130, a red and green alarm light 150 mounted on the top of the movable seat 120, an electric telescopic rod 160 mounted on one side of the structural frame 110 and with its end fixedly connected to the movable seat 120, a column 170 arranged on one side of the structural frame 110, a lateral support member 180 with one end fixed to the end of the structural frame 110 and the other end embedded in the column 170, and a driving member 190 mounted on the column 170 and passing through the lateral support member 180.

[0026] The structural frame 110 is used to install the movable seat 120 and limit the movement of the movable seat 120. The movable seat 120 includes a U-shaped plate 121 arranged on the inner side of the structural frame 110, a support 122 symmetrically fixed at the end of the U-shaped plate 121, and a plurality of sleeves 123 symmetrically fixed on both sides of the U-shaped plate 121. The U-shaped plate 121 is used to install the support 122. A circular groove 1221 is provided on the inner side surface of the support 122 for installing the measuring piece 130 to facilitate the rotation of the measuring piece 130. The sleeve 123 is slidably sleeved on the structural frame 110 to ensure the stability of the entire movable seat 120 during movement.

[0027] The measuring member 130 includes a rotating seat 131 rotatably arranged on the movable seat 120, a rotating shaft 132 symmetrically fixed on both sides of the rotating seat 131, a spring 133 sleeved on the rotating shaft 132, and a probe rod 134 fixed on one side of the rotating seat 131. The rotating seat 131 is used to install the probe rod 134, and the probe rod 134 is used to extend into the tooth groove. When the gear groove 171 is not aligned with the hob tooth, the end of the probe rod 134 will slide to one side along the inclined surface of the tooth groove, that is, drive the rotating seat 131 rotates, and when the probe rod 134 does not deviate to one side during the process of extending into the tooth groove, the gear groove 171 is aligned with the hob tooth, and the rotating shaft 132 rotates and engages in the circular groove 1221 to ensure the stability of the rotating seat 131 during rotation. One end of the spring 133 is fixed on the rotating shaft 132, and the other end is fixed to the inner wall of the circular groove 1221. The springs 133 on the rotating shafts 132 on both sides are arranged opposite to each other, and are used to drive the probe rod 134 to reset when the probe rod 134 is pushed out of the tooth groove.

[0028] In addition, the center point of the probe rod 134 and the gear hobbing cutter are located on the same horizontal line, ensuring that the position where the probe rod 134 contacts the tooth groove is the position where the gear hobbing cutter contacts the tooth groove.

[0029] The angle sensor 140 is fixedly connected to the end of one side shaft 132 and is used to monitor the rotation angle of the rotating seat 131 in real time. When the angle sensor 140 detects that the rotating seat 131 is rotating, it can be determined that the gear groove 171 is not aligned with the hob teeth. At this time, the red and green alarm light 150 is started to emit a red light to facilitate workers to make judgments. Otherwise, a green light is emitted to remind workers that the alignment is completed.

[0030] The electric telescopic rod 160 is used to drive the movable seat 120 to move, so as to facilitate the measuring piece 130 to extend into the tooth groove 171.

[0031] The column 170 is set on one side of the structural frame 110 to avoid affecting the processing operation of the gear hobbing cutter. A groove 171 is opened on one side of the column 170. The lateral support member 180 includes a lateral bracket 181 with one end fixed to the end of the structural frame 110 and the other end slidingly sleeved on the column 170, and a threaded sleeve 182 fixed to the end of the lateral bracket 181 and extending into the groove 171. The lateral bracket 181 is used to drive the structural frame 110 to move up and down. In addition, the driving member 190 includes a threaded rod rotatably installed in the groove 171. 191 and a motor 192 installed at the top of the column 170 and with its shaft fixedly connected to the end of the threaded rod 191. The threaded rod 191 passes through the threaded sleeve 182, and the threaded rod 191 and the threaded sleeve 182 are engaged with each other. When the motor 192 is started, it drives the threaded rod 191 to rotate, and the rotation of the threaded rod 191 drives the threaded sleeve 182 to move. The movement of the threaded sleeve 182 drives the lateral bracket 181 to move, that is, drives the structural frame 110 and the components installed on the structural frame 110 to move up and down to avoid affecting the gear processing by the gear hobbing cutter.

[0032] The working principle and use process of the present invention are as follows: when in use, the motor 192 is started, driving the threaded rod 191 to rotate, the threaded rod 191 rotates and drives the threaded sleeve 182 to move upward, the threaded sleeve 182 moves through the lateral bracket 181 to drive the structural frame 110 to move upward, so that the probe rod 134 is aligned with the gear, the electric telescopic rod 160 is started, driving the movable seat 120 to move outward, the movable seat 120 moves and drives the measuring piece 130 to move outward, so that the probe rod 134 extends into the groove 171 of the gear, when the gear groove 171 is not aligned with the hob tooth, the end of the probe rod 134 will slide to one side along the inclined surface of the tooth groove, That is, it drives the rotating seat 131 to rotate. At this time, the angle sensor 140 detects that the rotating seat 131 is rotating, and it can be determined that the tooth groove is not aligned with the hob teeth. The red and green warning light 150 emits red light, and the worker can slowly rotate the gear. When the probe rod 134 does not deviate to one side during the process of extending into the tooth groove, the gear groove 171 is aligned with the hob teeth, and the red and green warning light 150 emits green light, completing the alignment of the gear groove and the hob cutter. After that, the driving member 190 rotates in the opposite direction, driving the lateral support member 180 to move downward, that is, driving the structural frame 110 to move downward, to prevent the components on the structural frame 110 from affecting the gear processing.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gear alignment device for a CNC gear hobbing machine, comprising: The main body mechanism (100) is characterized in that the main body mechanism (100) includes a structural frame (110), a movable seat (120) slidably sleeved on the structural frame (110), a measuring member (130) rotatably mounted on the movable seat (120), an angle sensor (140) fixed to the top of the movable seat (120) and connected to the measuring member (130), a red and green warning light (150) mounted on the top of the movable seat (120), an electric telescopic rod (160) mounted on one side of the structural frame (110) and having an end fixedly connected to the movable seat (120), a column (170) arranged on one side of the structural frame (110), a lateral support member (180) having one end fixed to the end of the structural frame (110) and the other end embedded in the column (170), and a driving member (190) mounted on the column (170) and passing through the lateral support member (180); The measuring member (130) comprises a rotating seat (131) rotatably arranged on the movable seat (120), a rotating shaft (132) symmetrically fixed on both sides of the rotating seat (131), a spring (133) sleeved on the rotating shaft (132), and a probe rod (134) fixed on one side of the rotating seat (131).

2. The gear alignment device of a CNC gear hobbing machine according to claim 1, characterized in that: The movable seat (120) comprises a U-shaped plate (121) arranged inside the structural frame (110), a support (122) symmetrically fixed to the end of the U-shaped plate (121), and a plurality of sleeves (123) symmetrically fixed to both sides of the U-shaped plate (121), wherein the sleeves (123) are slidably sleeved on the structural frame (110).

3. The gear alignment device of a CNC gear hobbing machine according to claim 2, characterized in that: A circular groove (1221) is formed on the inner side surface of the support (122), and the rotating shaft (132) is rotatably engaged in the circular groove (1221). One end of the clockwork spring (133) is fixed on the rotating shaft (132), and the other end is fixed to the inner wall of the circular groove (1221). The clockwork springs (133) on the rotating shafts (132) on both sides are arranged opposite to each other.

4. The gear alignment device of a CNC gear hobbing machine according to claim 1, characterized in that: A groove (171) is formed on one side of the column (170), and the lateral support member (180) comprises a lateral bracket (181) having one end fixed to the end of the structural frame (110) and the other end slidably sleeved on the column (170), and a threaded sleeve (182) fixed to the end of the lateral bracket (181) and extending into the groove (171).

5. The gear alignment device of a CNC gear hobbing machine according to claim 1, characterized in that: The driving member (190) comprises a threaded rod (191) rotatably mounted in the groove (171) and a motor (192) mounted on the top of the column (170) and having a shaft fixedly connected to the end of the threaded rod (191).

6. The gear alignment device of a CNC gear hobbing machine according to claim 5, characterized in that: The threaded rod (191) passes through the threaded sleeve (182), and the threaded rod (191) and the threaded sleeve (182) are engaged with each other.

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