CN217493682U

CN217493682U - A top assembly of drive for gear shaft processing

Info

Publication number: CN217493682U
Application number: CN202221625228.6U
Authority: CN
Inventors: 江云斌; 江律志
Original assignee: Wenling Dabing Machinery Parts Co ltd
Current assignee: Wenling Dabing Machinery Parts Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-27
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a top assembly of drive for gear shaft processing belongs to mechanical technical field. It has solved the current top problem that influences the machining precision. The driving centre assembly for processing the gear shaft comprises a taper shank and a centre which are coaxially arranged, wherein the outer diameter of the taper shank is gradually reduced from front to back, a mounting hole for embedding the rear end of the centre is formed in the front end of the taper shank, a sleeve coaxial with the taper shank is arranged at the front end of the taper shank, and the centre is positioned in the sleeve; the rear end of the sleeve is fixedly connected with the taper shank, a rubber ring coaxial with the sleeve is attached to and fixed in the front end of the sleeve, the shape and the size of an inner hole of the rubber ring are matched with the shaft part of the gear shaft, and the front end of the tip extends into the rubber ring. This a drive center assembly for gear shaft processing can improve the machining precision.

Description

A top assembly of drive for gear shaft processing

Technical Field

The utility model belongs to the technical field of machinery, a top assembly of drive is related to, especially a top assembly of drive for gear shaft processing.

Background

Currently, a gear shaft generally includes a gear body and a shaft body which are coaxially arranged, and a deburring process is generally performed on an end face of the gear body by an end face grinding machine. In grinding, a tip assembly is typically used to position the gear shaft.

The existing centre assembly comprises a rotating centre and a driving centre which are arranged on a straight line from front to back, wherein the driving centre comprises a centre and a taper shank, the front end of the taper shank is provided with a mounting hole for inserting the rear end of the centre, and the centre is fixedly connected with the taper shank. When the device is used, the center and the rotating center are respectively pressed at two ends of the gear shaft, and the driving center drives the gear shaft to rotate.

In the grinding process, under the action of grinding stress, the gear shaft can generate certain jitter, so that the central line of the gear shaft and the central line of the tip generate angular deviation at a certain moment, and the processing precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having above-mentioned problem to current technique, having proposed a top assembly of drive for gear shaft processing, the technical problem of solution is how to improve gear shaft machining precision.

The purpose of the utility model can be realized by the following technical proposal: the driving centre assembly for processing the gear shaft comprises a taper shank and a centre which are coaxially arranged, wherein the outer diameter of the taper shank is gradually reduced from front to back, and the front end of the taper shank is provided with a mounting hole for embedding the rear end of the centre; the rear end of the sleeve is fixedly connected with the taper shank, a rubber ring coaxial with the sleeve is attached to and fixed in the front end of the sleeve, the shape and the size of an inner hole of the rubber ring are matched with the shaft part of the gear shaft, and the front end of the tip extends into the rubber ring.

When the rubber ring gear is used, the shaft part of the gear shaft is inserted into the sleeve and pressed on the tip, at the moment, the inner wall of the rubber ring is attached to the shaft part of the gear shaft, the gear shaft is further limited in the radial direction, the central lines of the gear shaft and the tip are ensured to be always kept in a collinear state, and vibration generated during grinding of the gear shaft is buffered by the elasticity of the rubber ring, so that the processing precision and quality of the gear shaft are effectively enhanced.

In foretell a top assembly of drive for pinion processing, the shaping has the ring flange on the sleeve pipe rear end outer wall, and the ring flange is pressed on the terminal surface before the taper shank, and the ring flange can be dismantled with the taper shank through the round bolt along this ring flange circumference equipartition and link firmly, realizes the whole of sleeve pipe and rubber circle constitution and changes alone, reduces the maintenance cost.

In foretell a top assembly of drive for gear shaft processing, the shaping has the clamping ring coaxial with this sleeve pipe on the sleeve pipe inner wall, and the clamping ring cover is top, and shaping has annular blank holder on top outer wall, and clamping ring rear end face and taper shank preceding terminal surface all sticiss on the annular blank holder. The annular blank pressing on the tip is clamped between the pressing ring and the taper shank so as to further limit the tip in the axial direction, enhance the connection stability of the tip and the taper shank and ensure that the gear shaft rotates stably to improve the processing precision and quality.

Simultaneously, the sleeve pipe both had been used for the installation location rubber circle, was used for the spacing top of axial again, and in this application, the sleeve pipe possesses the dual-purpose effect of a thing promptly, when simplifying the structure, convenient equipment.

In foretell a drive center assembly for gear shaft processing, the rear end face of rubber circle is pressed on the terminal surface before the clamping ring for support the rubber circle forward, increase the joint strength of rubber circle and sheathed tube, improve structural stability.

In foretell a drive center assembly for gear shaft processing, rubber circle front end inner wall is for being conical leading-in face, and leading-in face diameter by preceding back taper, and the gear shaft axial region of being convenient for inserts the rubber circle, facilitates the use.

In the driving centre assembly for processing the gear shaft, the two end parts of the centre are conical heads, and the two conical heads are arranged along the center of the annular blank holder in a symmetrical mode, so that the centre can be turned around for use, and the service life of the centre is prolonged.

In the above-mentioned drive center assembly for processing a gear shaft, the bottom wall of the mounting hole is a conical surface matched with the conical head, and the conical head in the mounting hole presses on the conical surface. The conical surface is matched with the conical head, so that the coaxiality between the taper shank and the tip can be enhanced, and the processing precision and quality of the gear shaft are further improved.

In the driving centre assembly for processing the gear shaft, the outer wall of the centre is provided with two strip-shaped supporting planes which are horizontally arranged, the length of each supporting plane extends along the axial direction of the centre, the two supporting planes are arranged symmetrically along the center of the annular blank holder, the inner wall of the mounting hole is provided with a positioning plane matched with the supporting planes in a forming mode, and the positioning planes are pressed on the supporting planes in the mounting hole. The supporting plane is matched with the positioning plane, the connection between the taper shank and the tip is further strengthened in the circumferential direction, the tip is ensured to rotate along with the taper shank all the time, and the processing precision and quality are guaranteed.

In the driving centre assembly for processing the gear shaft, the rubber ring is fixedly connected with the sleeve in a bonding mode.

In the driving center assembly for processing the gear shaft, two ends of the supporting plane respectively extend to the annular blank holder and the corresponding conical head.

Compared with the prior art, this a drive center assembly for pinion processing has following advantage:

1. when the rubber ring gear is used, the shaft part of the gear shaft is inserted into the sleeve and pressed on the tip, at the moment, the inner wall of the rubber ring is attached to the shaft part of the gear shaft, the gear shaft is further limited in the radial direction, the central lines of the gear shaft and the tip are ensured to be always kept in a collinear state, and vibration generated during grinding of the gear shaft is buffered by the elasticity of the rubber ring, so that the processing precision and quality of the gear shaft are effectively enhanced.

2. The annular blank pressing on the tip is clamped between the pressing ring and the taper shank so as to further limit the tip in the axial direction, enhance the connection stability of the tip and the taper shank and ensure that the gear shaft rotates stably to improve the processing precision and quality.

3. The sleeve pipe both has been used for the installation location rubber circle, is used for the spacing top of axial again, and in this application promptly, the sleeve pipe possesses a dual-purpose effect of thing, when simplifying the structure, convenient equipment.

Drawings

Fig. 1 is a schematic structural view of a drive tip assembly for gear shaft machining.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is a perspective view of the tip.

Fig. 4 is an operational state diagram of the drive tip assembly for gear shaft machining.

In the figure, 1, a taper shank; 2. a tip; 2a, annular blank pressing; 2b, a conical head; 2c, a support plane; 3. a sleeve; 3a, pressing a ring; 3b, an annular flange; 4. a rubber ring; 4a, a lead-in surface; 5. a bolt; 6. a gear shaft.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the driving center assembly for gear shaft machining comprises a taper shank 1 and a center 2 which are coaxially arranged.

Wherein the content of the first and second substances,

the outer diameter of the taper shank 1 is gradually reduced from front to back, and the front end of the taper shank 1 is provided with a mounting hole for embedding the rear end of the tip 2.

An annular blank pressing 2a is integrally formed on the outer wall of the middle part of the tip 2, the annular blank pressing 2a is positioned outside the mounting hole, and the rear end face of the annular blank pressing 2a is pressed on the front end face of the taper shank 1 to play a role in limiting, so that the tip 2 is mounted in place at one time. Two end parts of the tip 2 are conical heads 2b, and the two conical heads 2b are arranged along the annular blank pressing 2a in a centrosymmetric manner, so that the tip 2 can be turned around for use, and the service life of the tip 2 is prolonged. Further, the bottom wall of the mounting hole is a conical surface matching with the conical head 2b, and the conical head 2b in the mounting hole presses on the conical surface. The conical surface is matched with the conical head 2b, so that the coaxiality between the taper shank 1 and the tip 2 can be enhanced.

As shown in fig. 1 and 2, the front end of the taper shank 1 is provided with a sleeve 3 coaxial with the taper shank 1, and the tip 2 is positioned in the sleeve 3. The rear end of the sleeve 3 is fixedly connected with the taper shank 1, the rubber ring 4 coaxial with the sleeve 3 is attached to and fixed in the front end of the sleeve 3, the shape and the size of an inner hole of the rubber ring 4 are matched with the shaft part of the gear shaft 6, and the front end of the tip 2 extends into the rubber ring 4.

In the present embodiment, it is preferred that,

rubber circle 4 and sleeve pipe 3 bond to link firmly, further explain, the shaping has the clamping ring 3a coaxial with this sleeve pipe 3 on the sleeve pipe 3 inner wall, and clamping ring 3a overlaps on top 2, and the rear end face of rubber circle 4 is pressed on clamping ring 3a preceding terminal surface for support rubber circle 4 forward, increase rubber circle 4 and sleeve pipe 3's joint strength, improve structural stability.

Furthermore, the rear end face of the pressing ring 3a is tightly pressed on the annular pressing edge 2a, so that the annular pressing edge 2a on the tip 2 is clamped between the pressing ring 3a and the taper shank 1, the tip 2 is further limited in the axial direction, the connection stability of the tip 2 and the taper shank 1 is enhanced, and the stable rotation of the gear shaft 6 is ensured to improve the processing precision and quality.

The sleeve 3 and the taper shank 1 are connected in the following way: the shaping has annular flange 3b on the outer wall of 3 rear ends of sleeve pipe, and annular flange 3b presses on the terminal surface before the taper shank 1, and annular flange 3b can dismantle with taper shank 1 through the bolt 5 of this annular flange 3b circumference equipartition of round edge and link firmly, realizes the whole change alone that sleeve pipe 3 and rubber circle 4 constitute, reduces the maintenance cost.

In the actual product, as shown in fig. 1 to fig. 3, the inner wall of the front end of the rubber ring 4 is a tapered leading-in surface 4a, and the diameter of the leading-in surface 4a is gradually reduced from front to back, so that the shaft part of the gear shaft 6 can be conveniently inserted into the rubber ring 4, and the use is convenient. Be equipped with the level on top 2 outer wall and set up and be strip-shaped support plane 2c, support plane 2c length along top 2 axial extension, support plane 2c have two and set up along annular blank pressing 2a centrosymmetric, the shaping has the location plane that matches with support plane 2c on the mounting hole inner wall, and the location plane presses on this support plane 2c that is in the mounting hole. The supporting plane 2c is matched with the positioning plane, the connection between the taper shank 1 and the tip 2 is further strengthened in the circumferential direction, the tip 2 is ensured to rotate along with the taper shank 1 all the time, and the processing precision and quality are guaranteed. Preferably, two ends of the supporting plane respectively extend to the annular blank holder and the corresponding conical head.

As shown in fig. 4, when the rubber ring is used, the shaft part of the gear shaft 6 is inserted into the sleeve 3 and pressed on the tip 2, and at the moment, the inner wall of the rubber ring 4 is attached to the shaft part of the gear shaft 6, so that the gear shaft 6 is further limited in the radial direction, the central lines of the gear shaft 6 and the tip 2 are ensured to be always kept in a collinear state, and the vibration generated during grinding of the gear shaft 6 is buffered by the elasticity of the rubber ring 4, so that the processing precision and quality of the gear shaft 6 are effectively enhanced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A driving centre assembly for processing a gear shaft comprises a taper shank (1) and a centre (2) which are coaxially arranged, wherein the outer diameter of the taper shank (1) is gradually reduced from front to back, and the front end of the taper shank (1) is provided with a mounting hole for embedding the rear end of the centre (2), and is characterized in that the front end of the taper shank (1) is provided with a sleeve (3) which is coaxial with the taper shank (1), and the centre (2) is positioned in the sleeve (3); the rear end of the sleeve (3) is fixedly connected with the taper shank (1), the front end of the sleeve (3) is internally attached with and fixed with a rubber ring (4) coaxial with the sleeve (3), the shape and the size of an inner hole of the rubber ring (4) are matched with the shaft part of the gear shaft (6), and the front end of the tip (2) extends into the rubber ring (4).

2. The driving center assembly for processing the gear shaft according to claim 1, wherein an annular flange (3b) is formed on the outer wall of the rear end of the sleeve (3), the annular flange (3b) is pressed on the front end face of the taper shank (1), and the annular flange (3b) is detachably and fixedly connected with the taper shank (1) through a circle of bolts (5) uniformly distributed along the circumferential direction of the annular flange (3 b).

3. The driving center assembly for gear shaft machining according to claim 1 or 2 is characterized in that a pressing ring (3a) coaxial with the sleeve (3) is formed on the inner wall of the sleeve (3), the pressing ring (3a) is sleeved on the center (2), an annular pressing edge (2a) is formed on the outer wall of the center (2), and the rear end face of the pressing ring (3a) and the front end face of the taper shank (1) are tightly pressed on the annular pressing edge (2 a).

4. The drive tip assembly for gear shaft machining according to claim 3, wherein the rear end face of the rubber ring (4) is pressed against the front end face of the pressing ring (3 a).

5. The drive tip assembly for the processing of the gear shaft according to claim 4, wherein the inner wall of the front end of the rubber ring (4) is a tapered lead-in surface (4a), and the diameter of the lead-in surface (4a) is gradually reduced from front to back.

6. The drive tip assembly for the gear shaft machining according to claim 1, wherein both ends of the tip (2) are conical heads (2b), and the two conical heads (2b) are arranged along the annular pressing edge (2a) in a centrosymmetric manner.

7. The drive tip assembly for the machining of a toothed shaft according to claim 6, characterized in that the bottom wall of the mounting hole is a conical surface matching the conical head (2b), and this conical head (2b) in the mounting hole presses against the conical surface.

8. The driving center assembly for the gear shaft machining according to claim 7 is characterized in that a horizontally arranged strip-shaped supporting plane (2c) is arranged on the outer wall of the center (2), the length of the supporting plane (2c) extends along the axial direction of the center (2), two supporting planes (2c) are arranged along the center symmetry of the annular pressing edge (2a), a positioning plane matched with the supporting plane (2c) is formed on the inner wall of the mounting hole, and the positioning plane is pressed on the supporting plane (2c) in the mounting hole.

9. The drive tip assembly for the processing of the gear shaft according to claim 1, wherein the rubber ring (4) and the sleeve (3) are fixedly bonded.

10. The drive tip assembly for the machining of a toothed shaft according to claim 8, characterized in that the two ends of the support plane (2c) extend to the annular pressing edge (2a) and the corresponding conical head (2b), respectively.