CN110871397B

CN110871397B - Excircle grinding device suitable for reducing shaft

Info

Publication number: CN110871397B
Application number: CN201911237585.8A
Authority: CN
Inventors: 方仲华
Original assignee: Huzhou Yongbang Textile Weaving Co ltd
Current assignee: Huzhou Yongbang Textile Weaving Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-10-09
Anticipated expiration: 2039-12-05
Also published as: CN110871397A

Abstract

The invention discloses an excircle grinding device suitable for a different-diameter shaft, which comprises a workbench, wherein a driving wheel set and a driven wheel set are respectively arranged at two ends of the top of the workbench; the driven wheel set comprises a transverse plate positioned below the workbench, a screw rod lifter is arranged on the transverse plate, the top of the screw rod lifter is connected with a lifting table, and two second rotating wheels which are arranged side by side are arranged at the top of the lifting table; the compressing wheel set comprises a pinch roller, one end of the pinch roller is rotatably connected onto the connecting seat, a rotating arm is connected onto the connecting seat through a round rod, and a pressure spring located on the outer side of the round rod is arranged between the connecting seat and the rotating arm. The invention can be suitable for grinding the different-diameter shaft and has the characteristic of high grinding precision.

Description

Excircle grinding device suitable for reducing shaft

Technical Field

The invention relates to an excircle grinding device, in particular to an excircle grinding device suitable for a different-diameter shaft.

Background

The grinder is a grinder which grinds the surface of a workpiece by using a grinder coated with or embedded with an abrasive; the grinding machine is mainly used for grinding high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other molded surfaces in workpieces. The grinding mode of the prior grinding machine for grinding the outer cylindrical surface of the shaft part is mainly to place the shaft part on a rotatable supporting wheel, and the supporting wheel drives the shaft part to rotate and contact a grinding head, so that the outer cylindrical surface of the part is ground. However, the supporting roller structures of the grinding machine are all in a fixed state, the supporting roller center distance and the supporting roller height cannot be adjusted and moved, the problem that the different-diameter shaft cannot be normally installed due to the fact that the shaft diameters of the two sides of the different-diameter shaft are different when the different-diameter shaft is installed is caused, and the applicability of the grinding machine is reduced. In addition, because the bistrique can cause the atress vibrations of axle type part when grinding, and the vibration range of part is reduced through the spacing of axle type part to conventional grinding machine generally, but spacing mode still can make the part be in the state of small amplitude vibrations when rotating grinding to the grinding precision of device has been reduced. Therefore, the conventional polishing apparatus has a problem that it cannot be applied to polishing of a different-diameter shaft and polishing accuracy is low.

Disclosure of Invention

The invention aims to provide an outer circle grinding device suitable for a different-diameter shaft. The grinding machine can be suitable for grinding the different-diameter shaft and has the characteristic of high grinding precision.

The technical scheme of the invention is as follows: an excircle grinding device suitable for a different-diameter shaft comprises a workbench, wherein a driving wheel set and a driven wheel set are respectively arranged at two ends of the top of the workbench, a grinding set positioned at one side of the top of the workbench is arranged between the driving wheel set and the driven wheel set, and a pressing wheel set is arranged at one side of each of the driving wheel set and the driven wheel set; the driving wheel set comprises two first rotating wheels arranged on the workbench side by side, the end part of one first rotating wheel is connected with a driving motor, the driven wheel set comprises a transverse plate positioned below the workbench, a screw rod lifter is arranged on the transverse plate, one end of the screw rod lifter is connected with a lifting motor, the top of the screw rod lifter is connected with a lifting platform, and the top of the lifting platform is provided with two second rotating wheels arranged side by side; the pressing wheel set comprises a pressing wheel located above the middle of the first rotating wheel or the second rotating wheel, one end of the pressing wheel is connected to the connecting seat in a rotating mode, a rotating arm is connected to the connecting seat through a round rod, a pressure spring located on the outer side of the round rod is arranged between the connecting seat and the rotating arm, a handle is arranged at one end of the rotating arm, the other end of the rotating arm is connected to a stand located on one side of the driving wheel set or the driven wheel set in a rotating mode through a pin shaft, a ratchet wheel is arranged at one end of a pin.

In the aforesaid be applicable to the excircle grinder of reducing shaft, but the grinding group is including lateral shifting's grinding table, and the workstation is connected to the grinding table lower extreme, and the grinding table top rotates and is connected with the grinding arm, grinds arm end both sides and is equipped with interconnect's bistrique and grinding motor respectively.

In the excircle grinding device suitable for the different-diameter shaft, a through hole matched with the round rod is formed in the rotating arm, and a limiting plate is arranged at the upper end of the round rod after penetrating through the through hole.

In the excircle grinding device suitable for the different-diameter shaft, the lifting platform extends to the upper part of the workbench through the rectangular hole.

Compared with the prior art, the grinding unit has the advantages that the driving wheel set is matched with the lifting driven wheel set, so that the axis of the reducing shaft is in a horizontal state after the reducing shaft is positioned, and the grinding unit can stably grind the reducing shaft; the reducing shaft can be positioned after the reducing shaft is positioned by matching the rotating arm and the pressing wheel, and the pressing wheel is kept fixed after the pressing wheel presses the workpiece through the ratchet wheel and the pawl, so that the pressing spring in a contraction state after pressing can apply pretightening force to the workpiece in work, the positioning of the workpiece during rotation is ensured, the stress vibration of the workpiece is avoided, and the grinding precision of the grinding machine is improved; the mutual sliding between the workpiece and the rotating wheel can be effectively avoided through the compression of the compression wheel and the pretightening force of the compression spring, so that the driving wheel set can stably drive the workpieces with different appearances and weights to rotate, and the grinding precision of the applicability of the invention is further improved; because the rotating arm is positioned in a single-shaft rotating mode, when the special-diameter shaft is pressed, the rotating arm can enable the pressing wheel to press workpieces with different outer wall heights through the change of the rotating angle of the rotating arm, and the applicability and the working stability of the special-diameter shaft are further improved. In addition, the grinding head can grind workpieces with different outer diameters through the rotatable grinding arm; the matching of the handle and the ratchet wheel pawl can keep the pressing wheel group to work stably, meanwhile, the adjustment and the corresponding operation of the rotating arm by workers are facilitated, and the practicability of the invention is improved. Therefore, the invention can be suitable for grinding the different-diameter shaft and has the characteristic of high grinding precision.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a view in the direction a of fig. 1.

The labels in the figures are: 1-workbench, 2-driving wheel set, 3-driven wheel set, 4-grinding wheel set, 5-pressing wheel set, 6-first rotating wheel, 7-driving motor, 8-screw rod lifter, 9-lifting motor, 10-lifting table, 11-second rotating wheel, 12-pressing wheel, 13-connecting seat, 14-round rod, 15-rotating arm, 16-pressure spring, 17-upright post, 18-ratchet wheel, 19-pawl, 20-grinding table, 21-grinding arm, 22-grinding head, 23-grinding motor, 101-transverse plate, 102-rectangular hole, 141-limiting plate, 151-handle and 152-through hole.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

Examples are given. An excircle grinding device suitable for a different-diameter shaft is shown in figure 1 and comprises a workbench 1, wherein a driving wheel set 2 and a driven wheel set 3 are respectively arranged at two ends of the top of the workbench 1, a grinding set 4 positioned at one side of the top of the workbench 1 is arranged between the driving wheel set 2 and the driven wheel set 3, and a pressing wheel set 5 is respectively arranged at one side of the driving wheel set 2 and one side of the driven wheel set 3; the driving wheel set 2 comprises two first rotating wheels 6 which are arranged on the workbench 1 side by side, the end part of one first rotating wheel 6 is connected with a driving motor 7, the driven wheel set 3 comprises a transverse plate 101 positioned below the workbench 1, a screw rod lifter 8 is arranged on the transverse plate 101, one end of the screw rod lifter 8 is connected with a lifting motor 9 fixed on the transverse plate 101, the top of the screw rod lifter 8 is connected with a lifting platform 10, and the top of the lifting platform 10 is provided with two second rotating wheels 11 which are arranged side by side; the pinch roller set 5 comprises a pinch roller 12 located above the middle of a first rotating wheel 6 or a second rotating wheel 11, one end of the pinch roller 12 is rotatably connected onto a connecting seat 13, the connecting seat 13 is connected with a rotating arm 15 through a round rod 14, the lower end of the round rod 14 is fixedly connected with the connecting seat 13, a pressure spring 16 located on the outer side of the round rod 14 is arranged between the connecting seat 13 and the rotating arm 15, one end of the rotating arm 15 is provided with a handle 151, the other end of the rotating arm 15 is rotatably connected onto a stand column 17 located on one side of the driving wheel set 2 or the driven wheel set 3 through a pin shaft, the pin shaft is connected with the rotating arm 15 in a key mode, a ratchet wheel 18 is fixedly connected with the pin.

But grinding unit 4 is including lateral shifting's grinding table 20, and grinding table 20 lower extreme passes through ball screw and connects workstation 1, and ball screw is connected with the sideslip motor, and grinding table 20 top is rotated and is connected with grinding arm 21, and grinding arm 21 one side is connected with the rotation motor of fixing on grinding table 20 through the sprocket chain, and grinding arm 21 tip both sides are equipped with interconnect's bistrique 22 and grinding motor 23 respectively.

The rotating arm 15 is provided with a through hole 152 matched with the round rod 14, and the upper end of the round rod 14 penetrates through the through hole 152 to be provided with a limiting plate 141.

The lifting platform 10 extends to the upper part of the working platform 1 through a rectangular hole 102.

The working principle of the invention is as follows: when the grinding machine works, a user firstly adjusts the lifting table 10 according to the radius difference of the two ends of the reducing shaft, when the lead screw lifter 8 lifts the second rotating wheel 11 to the right position through the lifting table 10, then the two ends of the reducing shaft to be ground are respectively placed on the first rotating wheel 6 and the second rotating wheel 11, and shaft workpieces with different outer diameters can be kept horizontal after being placed through the matching of the lifting table 10 and the second rotating wheel 11. After the workpiece is placed, the rotating arms 15 on one sides of the driving wheel set 2 and the driven wheel set 3 are respectively pressed down through the handles 151, so that the pressing wheels 12 are in contact with the top of the workpiece; the rotation arm 15 can play a role of stopping the rotation arm 15 through the matching of the ratchet wheel 18 and the pawl 19 when rotating, and the rotation arm 15 is prevented from bouncing when the pressure spring 16 contracts. After the pressing wheel 12 contacts the workpiece, the workpiece can be pressed through the matching of the round rod 14 and the pressure spring 16, so that the workpiece is kept in close contact with the rotating wheel under the action of the pressing force, and the vibration of the workpiece during grinding is avoided. After the workpiece is fixed, the grinding table 20 moves horizontally to the grinding position, and then the grinding motor 23 drives the grinding head 22 to rotate and contacts the outer wall of the workpiece after the grinding arm 21 rotates, so that the grinding work on the workpiece is completed. When the grinding is completed, the worker can complete the work of removing and replacing the work by adjusting the lever to disengage the pawl 19 from the ratchet wheel 18 and then pulling up the rotating arm 15 to disengage the pinch roller 12 from the work.

Claims

1. The utility model provides an excircle grinder suitable for reducing shaft which characterized in that: the grinding device comprises a workbench (1), wherein a driving wheel set (2) and a driven wheel set (3) are respectively arranged at two ends of the top of the workbench (1), a grinding set (4) positioned at one side of the top of the workbench (1) is arranged between the driving wheel set (2) and the driven wheel set (3), and pressing wheel sets (5) are respectively arranged at one side of the driving wheel set (2) and one side of the driven wheel set (3); the driving wheel set (2) comprises two first rotating wheels (6) which are arranged on the workbench (1) side by side, the end part of one first rotating wheel (6) is connected with a driving motor (7), the driven wheel set (3) comprises a transverse plate (101) which is positioned below the workbench (1), a screw rod lifter (8) is arranged on the transverse plate (101), one end of the screw rod lifter (8) is connected with a lifting motor (9), the top of the screw rod lifter (8) is connected with a lifting table (10), and the top of the lifting table (10) is provided with two second rotating wheels (11) which are arranged side by side; the pressing wheel set (5) comprises a pressing wheel (12) located above the middle of a first rotating wheel (6) or a second rotating wheel (11), one end of the pressing wheel (12) is rotatably connected onto a connecting seat (13), the connecting seat (13) is connected with a rotating arm (15) through a round rod (14), a pressure spring (16) located on the outer side of the round rod (14) is arranged between the connecting seat (13) and the rotating arm (15), one end of the rotating arm (15) is provided with a handle (151), the other end of the rotating arm (15) is rotatably connected onto an upright post (17) located on one side of a driving wheel set (2) or a driven wheel set (3) through a shaft, one end of a pin shaft is provided with a ratchet wheel (18), and a pawl (19) matched with the ratchet wheel (18).

2. A cylindrical grinding apparatus for a different diameter shaft according to claim 1, wherein: but grind group (4) including lateral shifting's grinding table (20), grinding table (20) lower extreme connection workstation (1), grinding table (20) top is rotated and is connected with grinding arm (21), and grinding arm (21) tip both sides are equipped with interconnect's bistrique (22) and grinding motor (23) respectively.

3. A cylindrical grinding apparatus for a different diameter shaft according to claim 1, wherein: be equipped with on rocking arm (15) with round bar (14) complex through-hole (152), round bar (14) upper end is passed through-hole (152) and is equipped with limiting plate (141).

4. A cylindrical grinding apparatus for a different diameter shaft according to claim 1, wherein: the lifting platform (10) extends to the upper part of the workbench (1) through the rectangular hole (102).