CN210335372U

CN210335372U - Device for scraping center hole of shaft tooth part

Info

Publication number: CN210335372U
Application number: CN201921210531.8U
Authority: CN
Inventors: 李胜; 李阔
Original assignee: Shuanghuan Driveline Jiaxing Precision Manufacturing Co ltd
Current assignee: Shuanghuan Driveline Jiaxing Precision Manufacturing Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-17
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to a device for scraping a center hole of an axle tooth part, a driving motor and an axle sleeve are fixed on a left end bolt of a machine tool main body, the axle sleeve is connected with a large V belt wheel mechanism through a bearing, a small V belt wheel is installed on a rotating shaft of the driving motor, and a left scraping head is installed on the axle sleeve; the right end of the machine tool main body is provided with another shaft sleeve, the shaft sleeve is provided with a right grinding and scraping head, the pneumatic device is arranged at the right end of the machine tool main body, and the pneumatic device pushes the shaft sleeve and the right grinding and scraping head arranged on the shaft sleeve to move left and right through a connecting rod; the supporting seat is fixed on the machine tool body, the shaft-shaped gear is arranged on the supporting seat, the clamping ring adopts an eccentric clamping mechanism to firmly connect the shaft of the shaft-shaped gear with the clamping ring, and power is transmitted to the clamping ring through a transmission bolt on the large V-shaped belt wheel mechanism through an eccentric round handle so as to drive the shaft-shaped gear to rotate. An object of the utility model is to provide a fix a position accurate, easy operation, degree of automation is high, the device of centre bore is scraped to axle tooth class part that production efficiency is high.

Description

Device for scraping center hole of shaft tooth part

Technical Field

The utility model belongs to the technical field of machining part centre bore technique and specifically relates to indicate a device of centre bore is scraped to axle tooth class part grinding.

Background

In the machining process of the shaft tooth part, the central hole is used for positioning in the machining process and the inspection process, is a design reference, a process reference and a measurement reference of the mechanical part, particularly the shaft tooth part, and the machining precision and the measurement precision of the shaft tooth part are seriously influenced by the quality of the central hole in terms of the machining precision and the measurement precision of the shaft tooth part, so that the central hole is usually ground and scraped before finish machining in order to improve the machining precision of the shaft tooth part.

The existing machine tools for grinding and scraping the center hole of shaft tooth parts are mainly two types, namely a lathe and a drilling machine. The method for scraping the central hole by using the lathe is that one end clamps a workpiece by using three claws, the other end scrapes the central hole by using a scraping head, and after one end is ground, the other end is turned around and scraped. The grinding and scraping of the central hole on the lathe occupies large area, is inconvenient to operate and has low efficiency; the method for grinding the center hole by using the drilling machine comprises the steps that the upper center is provided with a grinding head, the lower center is provided with a fixed center, an operator holds a workpiece during grinding, and one end of the ground end turns around and the other end of the ground end turns around. The labor intensity of grinding and scraping the center hole on the drilling machine is high, the efficiency is low, and the safety is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a fix a position accurate, easy operation, degree of automation is high, the device of centre bore is scraped to axle tooth class part that production efficiency is high.

The utility model provides a technical scheme that above-mentioned problem adopted is: a device for scraping a central hole on an axle tooth part comprises a driving motor, a small V-shaped belt wheel, two shaft sleeves, a left scraping head, a right scraping head, a pneumatic device, a connecting rod, a large V-shaped belt wheel mechanism, a clamping ring, a supporting seat and a machine tool main body; a driving motor and a shaft sleeve are fixed at the left end of the machine tool main body through a bolt, the shaft sleeve is connected with a large V belt pulley mechanism through a bearing, a small V belt pulley is installed on a rotating shaft of the driving motor, the small V belt pulley is connected with the large V belt pulley mechanism through a V belt, and a left grinding head is installed on the shaft sleeve; the right end of the machine tool main body is provided with another shaft sleeve, the shaft sleeve is provided with a right grinding head, the pneumatic device is arranged at the right end of the machine tool main body, and the pneumatic device pushes the shaft sleeve through a connecting rod;

the support seat is fixed on the machine tool main body, the support seat is provided with a shaft-shaped gear, and the shaft-shaped gear is fixed through a clamping ring.

Preferably, the clamping ring is composed of an eccentric circle, a wire spring, an eccentric circle handle, positioning bolts, positioning nuts and a clamping ring body, wherein the eccentric circle is fixed on the clamping ring body, the eccentric circle handle is connected on the eccentric circle, the two positioning bolts are fixed on the clamping ring body through the positioning nuts, and two ends of the wire spring are respectively connected on the eccentric circle handle and the clamping ring body. The clamp ring functions to clamp the workpiece and thereby drive the shaft gear to rotate.

Preferably, the two positioning bolts and the eccentric circles are evenly distributed on the circumference of the clamping ring at intervals of 120 degrees.

Preferably, the large V belt wheel mechanism consists of a large V belt wheel, a positioning ring and a transfer bolt, the positioning ring is fixed with the large V belt wheel through the bolt, the transfer bolt is welded on the positioning ring, and the large V belt wheel is connected with the small V belt wheel through a V belt.

Preferably, the left scraping head and the right scraping head are identical in structure and symmetrically arranged in position, the top end of the scraping head is composed of a regular hexagonal frustum pyramid, the taper of the right hexagonal frustum pyramid is 30 degrees, the right hexagonal frustum pyramid is made of a cutter steel, the right hexagonal frustum pyramid is in contact with a central hole of the shaft-shaped gear and is used for scraping the central hole, the edge of the scraping head is in contact with the central hole, the contact area is small, the cutting pressure is large, and the machining efficiency is high. The tail end of the grinding and scraping head is a cone frustum, the taper is 8 degrees, the grinding and scraping head is connected with the shaft sleeve through conical surface positioning, the grinding and scraping head can be accurately matched and connected with the shaft sleeve, and the positioning accuracy can achieve the effect.

Compared with the prior art, the utility model, have following advantage and effect: structural design is reasonable, fixes a position accurate, easy operation, degree of automation is high, production efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a shaft sleeve according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a large V-belt pulley mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a clamp ring according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a scraping head according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a support seat according to an embodiment of the present invention.

In the figure: 1-driving a motor; 2-small V belt pulley; 3-shaft sleeve; 41-left scraping head; 42-right scraping head; 5-a pneumatic device; 6-connecting rod; 7-large V belt wheel mechanism; 71-large V pulley; 72-a positioning ring; 73-transfer bolt; 8-a clamping ring; 81-eccentric circle; 82-wire spring; 83-eccentric round handle; 84-a positioning bolt; 85-positioning nut; 86-a clamp ring body; 9-a support seat; 10-a machine tool body; 11-shaft gear; 12-V belt.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-6, the device for scraping a central hole on a shaft tooth part in the present embodiment includes a driving motor 1, a small V-shaped pulley 2, two bushings 3, a left scraping head 41, a right scraping head 42, a pneumatic device 5, a connecting rod 6, a large V-shaped pulley mechanism 7, a clamping ring 8, a support seat 9, and a machine tool body 10, wherein the clamping ring 8 is composed of an eccentric circle 81, a wire spring 82, an eccentric circle handle 83, a positioning bolt 84, a positioning nut 85, and a clamping ring body 86, the eccentric circle 81 is fixed on the clamping ring body 86, the eccentric circle 81 is connected with the eccentric circle handle 83, the two positioning bolts 84 are fixed on the clamping ring body 86 through the positioning nut 85, two ends of the wire spring 82 are respectively connected to the eccentric circle handle 83 and the clamping ring body 86, the clamping ring 8 adopts an eccentric clamping mechanism to firmly connect a shaft of the shaft-shaped gear 11 with the clamping ring 8, and, The V-belt pulley comprises a positioning ring 72 and a transfer bolt 73, wherein the positioning ring 72 is fixed with a large V-belt pulley 71 through a bolt, the transfer bolt 73 is welded on the positioning ring 72, and the large V-belt pulley 71 is connected with a small V-belt pulley 2 through a V-belt 12. A driving motor 1 and a shaft sleeve 3 are fixed at the left end of a machine tool main body 10 through bolts, the shaft sleeve 3 is connected with a large V belt wheel mechanism 7 through a bearing, a small V belt wheel 2 is installed on a rotating shaft of the driving motor 1, and a left grinding head 41 is installed on the shaft sleeve 3; the right end of the machine tool main body 10 is provided with the other shaft sleeve 3, the shaft sleeve 3 is provided with the right grinding head 42, the pneumatic device 5 is arranged at the right end of the machine tool main body 10, and the pneumatic device 5 pushes the shaft sleeve 3 and the right grinding head 42 arranged on the shaft sleeve 3 to move left and right through the connecting rod 6; the support base 9 is fixed on a machine tool body 10, and the shaft-shaped gear 11 is arranged on the support base 9.

In the use process of the embodiment, firstly, the shaft-shaped gear 11 is placed on the supporting seat 9, the pneumatic device 5 drives the shaft sleeve 3 and the right scraping head 42 at the right end to move leftwards to push the shaft-shaped gear 11 to move leftwards so as to enable the left end center hole of the shaft-shaped gear 11 to be in contact with the left scraping head 41 at the left end, when the pressure reaches a certain value, the driving motor 1 is started, the driving motor 1 drives the small V belt wheel 2 to drive the large V belt wheel mechanism 7 to rotate under the transmission effect of the V belt 12, the transmission bolt 73 on the large V belt wheel mechanism 7 is in contact with the eccentric circular handle 83 on the clamping ring 8 so as to drive the shaft-shaped gear 11 to rotate, the shaft-shaped gear 11 rotates to generate relative motion with the left scraping head 41 and the right scraping head 42 at the left end and the right end, so as to achieve the function of grinding the center hole, after grinding is finished, the driving motor 1 stops rotating, the pneumatic device 5 drives the right scraping head 42, finally, the shaft gear 11 is removed, and one operation is finished.

In addition, it should be noted that equivalent changes or simple changes made according to the structure, features and principles of the present invention are all included in the protection scope of the present invention.

Claims

1. A device for scraping a central hole of a shaft tooth part is characterized by comprising a driving motor, a small V-shaped belt pulley, two shaft sleeves, a left scraping head, a right scraping head, a pneumatic device, a connecting rod, a large V-shaped belt pulley mechanism, a clamping ring, a supporting seat and a machine tool main body;

a driving motor and a shaft sleeve are fixed at the left end of the machine tool main body through a bolt, the shaft sleeve is connected with a large V belt pulley mechanism through a bearing, a small V belt pulley is installed on a rotating shaft of the driving motor, the small V belt pulley is connected with the large V belt pulley mechanism through a V belt, and a left grinding head is installed on the shaft sleeve;

the right end of the machine tool main body is provided with another shaft sleeve, the shaft sleeve is provided with a right grinding head, the pneumatic device is arranged at the right end of the machine tool main body, and the pneumatic device pushes the shaft sleeve through a connecting rod;

the support seat is fixed on the machine tool main body, a shaft-shaped gear is arranged on the support seat, and the shaft-shaped gear is fixed through a clamping ring.

2. The device for scraping the central hole of the shaft tooth part as claimed in claim 1, wherein the clamping ring is composed of an eccentric circle, a wire spring, an eccentric circle handle, a positioning bolt, a positioning nut and a clamping ring main body, the eccentric circle is fixed on the clamping ring main body, the eccentric circle is connected with the eccentric circle handle, the two positioning bolts are fixed on the clamping ring main body through the positioning nut, and two ends of the wire spring are respectively connected to the eccentric circle handle and the clamping ring main body.

3. The device for grinding the central hole of the shaft tooth part as claimed in claim 2, wherein the two positioning bolts and the eccentric circles are uniformly distributed on the circumference of the clamping ring at intervals of 120 degrees.

4. The device for scraping the central hole of the shaft tooth part according to claim 1, wherein the large V-shaped belt wheel mechanism comprises a large V-shaped belt wheel, a positioning ring and a transfer bolt, the positioning ring is fixed with the large V-shaped belt wheel through the bolt, the transfer bolt is welded on the positioning ring, and the large V-shaped belt wheel is connected with the small V-shaped belt wheel through a V-shaped belt.

5. The device for scraping the central hole of the shaft and gear part according to claim 1, wherein the left scraping head and the right scraping head are identical in structure and symmetrically arranged, the top end of the left scraping head is formed by a regular hexagonal frustum pyramid with the taper of 30 degrees, the tail end of the left scraping head is a cone frustum with the taper of 8 degrees.