CN113618620A

CN113618620A - A special tool for grinding the shovel scraping surface of the spindle box of the CNC lathe

Info

Publication number: CN113618620A
Application number: CN202111044987.3A
Authority: CN
Inventors: 段春先; 高明辉; 苏翔
Original assignee: Yuxi Jinggong Cnc Machine Tool Co ltd
Current assignee: Yuxi Jinggong Cnc Machine Tool Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-11-09

Abstract

The invention belongs to the technical field of machine tool manufacturing, in particular to the technical field of auxiliary tooling for machine tools, and in particular relates to a special tooling for grinding the shovel surface of a headstock of a CNC lathe, comprising a fulcrum fixing seat, a crowbar and a connecting rod mechanism, and the fulcrum fixing seat is fixed on the bed On the guide rail, the rotating hole of the crowbar passes through the rotating shaft of the fulcrum fixing seat, the front end of the crowbar is connected with the connecting rod mechanism, and the other end of the connecting rod mechanism is connected with the screw hole of the spindle box, and the connecting rod mechanism can be rotated around the crowbar; A simple, lightweight, compact, labor-saving and convenient grinding tool for auxiliary scraping is provided, which reduces the intensity of manual operation and improves working conditions.

Description

Special frock of numerical control lathe headstock shovel scraped surface grinding

Technical Field

The invention belongs to the technical field of machine tool manufacturing, particularly relates to the technical field of auxiliary tools of machine tools, and particularly relates to a special tool for scraping and grinding a numerical control lathe spindle box.

Background

In order to improve the requirement of a joint point between a spindle box body and a lathe bed of a machine tool, the purpose of enhancing the rigidity of a spindle and avoiding vibration is achieved by mostly scraping the joint surface between the spindle box body and the lathe bed manually at present, and the joint point is increased by partially grinding the joint surface, but the effect is not ideal. In-process is scraped in the shovel, need to promote headstock round trip movement, look over with the lathe bed faying surface condition, scrape according to the faying surface condition, it removes to the lathe bed of the relative headstock body all to promote at this in-process, can also manually promote to small-size headstock body, nevertheless to large-scale main shaft box, make a round trip to promote the difficulty, and in reality, for reducing workman's intensity, mostly adopt the crow bar to use the lathe bed to make a round trip to pry the main shaft box and look for the faying surface between box and the lathe bed as the fulcrum, this method needs the workman to make a round trip to run, and the crow bar prizes in vertical direction, the operation is inconvenient. Therefore, the auxiliary tool which is small and exquisite in size, labor-saving and convenient to operate is needed to replace the existing prying mode.

Disclosure of Invention

The invention aims to provide a special tool for grinding a scraping surface of a main shaft box of a numerical control lathe, and provides a simple, light, small, labor-saving and convenient grinding tool for assisting scraping, so that the manual operation intensity is reduced, and the working condition is improved.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a special frock is ground to numerical control lathe headstock shovel scraped surface, includes fulcrum fixing base, crow bar and link mechanism, and the fulcrum fixing base is fixed on the lathe bed guide rail, and the rotatory hole of crow bar passes the rotation axis of fulcrum fixing base, and the crow bar front end is connected with link mechanism, and the link mechanism other end is connected with the screw hole of main shaft box simultaneously, and link mechanism can wind the rotatory setting of crow bar.

Furthermore, the fulcrum fixing base include left kicking block, right kicking block, screwed pipe, rotation axis and pressure bar, left double-screw bolt and right double-screw bolt have been welded respectively on left kicking block and the right kicking block, and left kicking block still welds the rotation axis simultaneously, and left kicking block passes through left double-screw bolt and right double-screw bolt with right kicking block and is connected with the screwed pipe, and the pressure bar passes the screwed pipe setting.

Further, the crow bar include hollow steel pipe, guiding axle, linear bearing, sliding seat and stopper, hollow steel pipe and guiding axle one end welding, the last linear bearing that packs into of guiding axle, linear bearing excircle and sliding seat hole cooperation are fixed the sliding seat on linear bearing simultaneously, weld the rotation axis with link mechanism complex on the sliding seat simultaneously.

Furthermore, a first limiting block and a second limiting block are respectively arranged at one end of the guide shaft and the end part of the rotating shaft of the fulcrum fixing seat.

Further, link mechanism includes rotatory axle sleeve, claw nail, connecting rod, and rotatory axle sleeve welds on the connecting rod with the claw nail, and the claw nail passes the screw hole of main shaft box and is connected with the main shaft box, and rotatory axle sleeve passes welded rotation axis and is connected with the crow bar on the sliding seat of crow bar.

Further, the link mechanism may be rotatably provided around the guide shaft.

Compared with the prior art, the invention has at least one of the following beneficial effects:

the scraping surface grinding tool for the lathe spindle box body can easily and conveniently grind the contact surface between the lathe spindle box body and the lathe body, is simple and convenient to install, and can greatly reduce the labor intensity of work and improve the productivity. The distance between the left pressing block and the right pressing block of the fulcrum fixing seat is adjusted, and the position size and the size of the claw nail of the connecting rod mechanism are changed, so that the device is suitable for machine tools of different specifications.

Drawings

FIG. 1 is a schematic diagram of the structure of the grinding tool of the present invention;

FIG. 2 is a view of the structure of the fulcrum fixing seat;

FIG. 3 is a structural view of a crow bar;

fig. 4 is a view showing a construction of a link.

In the figure, 1-fulcrum fixing seat; 2, crow bar; 3-a linkage mechanism; 11-left top block; 12-a right top block; 13-a threaded pipe, 14-a rotating shaft, 15-a pressure rod, 16-a left stud, 17-a right stud, 21-a hollow steel pipe, 22-a guide shaft, 23-a sliding seat, 24-a linear bearing, 25-a first limiting block, 26-a rotating shaft, 27-a second limiting block, 31-a rotating shaft sleeve, 32-a claw nail and 33-a connecting rod.

Detailed Description

As shown in fig. 1 to 4, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The lathe main shaft box body scraping surface grinding tool shown in figure 1 comprises a fulcrum fixing seat 1, a crowbar 2 and a connecting rod mechanism 3, wherein the fulcrum fixing seat 1 is fixed on a guide rail of a lathe bed 5, a rotary hole of the crowbar 2 penetrates through a rotary shaft of the fulcrum fixing seat 1, the front end of the crowbar 2 is connected with the connecting rod mechanism 3, the other end of the connecting rod mechanism 3 is connected with a screw hole of a main shaft box body 4, and the main shaft box body 4 is enabled to reciprocate relative to the lathe bed 5 by pushing the crowbar 2 back and forth. Because the scraping contact surface needs to be repeated for many times to meet the relevant standards, the connecting rod mechanism 3 can rotate around the prying rod 2 and is easily separated from or connected with the main spindle box body 4.

Specifically, referring to fig. 2, the fulcrum fixing base 1 includes a left top block 11, a right top block 12, a threaded pipe 13, a rotating shaft 14 and a pressure rod 15, a left stud 16 and a right stud 17 are welded on the left top block 11 and the right top block 12 respectively, the rotating shaft 14 is welded on the left top block 11, the left top block 11 and the right top block 12 are connected with the threaded pipe 13 through a stud 16/17, the pressure rod 15 penetrates through the threaded pipe 13, and the fulcrum fixing base 1 is fixed on the inner guide rail side of the bed 5 by the pressure rod 15.

Specifically, referring to fig. 3, the crow bar 2 includes a hollow steel pipe 21, a guide shaft 22, a linear bearing 24, a sliding seat 23, and a limiting block 25, the hollow steel pipe 21 is welded to one end of the guide shaft 22, the linear bearing 24 is installed on the guide shaft 22, an outer circle of the linear bearing 24 is matched with an inner hole of the sliding seat 23, the sliding seat 23 is fixed on the linear bearing 24, a rotating shaft 26 matched with the link mechanism 3 is welded on the sliding seat 23, and the sliding seat 23 can rotate around the guide shaft 22 and also can linearly move along the axial direction. The

limit blocks

25 and 27 are mounted at one end of the guide shaft 22 and the end of the rotating shaft of the fulcrum fixing seat 1 to prevent the separation of the mechanisms.

Specifically, referring to fig. 4, the link mechanism 3 includes a rotation sleeve 31, a claw pin 32, and a link 33, the rotation sleeve 31 and the claw pin 32 are welded to the link 33, the claw pin 32 is connected to the main spindle housing 4 through a screw hole of the main spindle housing 4, and the rotation sleeve 31 is connected to the crowbar 2 through a rotation shaft 26 welded to a slide seat 23 of the crowbar 2. The claw nails 32 can be conveniently connected with the main spindle box body 4 through the rotating shaft 26 of the sliding seat 23, and the connecting rod mechanism 3 can rotate around the guide shaft 22 after the grinding is finished each time through the sliding seat, so that the main spindle box body is conveniently lifted.

The working principle of the invention is as follows:

firstly, a pivot fixing seat 1 is placed in a middle groove of a lathe bed for positioning, a pressure rod 15 penetrates through a middle through hole of a threaded pipe 13, the pivot fixing seat 1 is locked in a rotating mode, then a claw nail 32 in a connecting rod mechanism 3 penetrates through a screw hole at the lower end of a main shaft box body for fixing, a crow bar is pushed forwards and backwards in the horizontal direction to drive the main shaft box body to repeatedly move back and forth on the lathe bed, after a contact surface is sufficiently rubbed, the claw nail 32 of the connecting rod mechanism 3 is taken down, the crow bar 2 rotates for 180 degrees to avoid the main shaft box body, the main shaft box body is hung down for scraping, the main shaft box body is hung onto the lathe bed again after scraping is completed, the connecting rod mechanism 3 is rotated, the claw nail 32 penetrates through the screw hole of the main shaft box body, the crow bar 2 is horizontally pushed, the main shaft box body is moved back and forth, and forth actions are repeated.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A special tool for grinding the shovel surface of the headstock of a CNC lathe, characterized in that it comprises a fulcrum fixing seat (1), a crowbar (2) and a connecting rod mechanism (3), and the fulcrum fixing seat (1) is fixed on the bed (5) On the guide rail, the rotating hole of the crowbar (2) passes through the rotating shaft of the fulcrum fixing seat (1). The front end of the crowbar (2) is connected to the link mechanism (3), and the other end of the link mechanism The spindle box body (4) is connected with the screw holes, and the link mechanism (3) can be rotated around the pry bar (2).

2. A special tool for grinding the shovel surface of a CNC lathe spindle box according to claim 1, characterized in that: the fulcrum fixing seat (1) comprises a left top block (11), a right top block (12), The threaded pipe (13), the rotating shaft (14) and the pressure rod (15), the left top block (11) and the right top block (12) are respectively welded with a left stud (16) and a right stud (17), and at the same time The left top block (11) is also welded with a rotating shaft (14), and the left top block (11) and the right top block (12) are connected to the threaded pipe (13) through the left stud (16) and the right stud (17) , the pressure rod (15) is set through the threaded pipe (13).

3. A special tool for grinding the shovel surface of the headstock of a CNC lathe according to claim 1, characterized in that: the crowbar (2) comprises a hollow steel pipe (21), a guide shaft (22), a linear bearing ( 24), the sliding seat (23) and the limit block, the hollow steel pipe (21) is welded with one end of the guide shaft (22), the guide shaft (22) is loaded with the linear bearing (24), and the outer circle of the linear bearing (24) is The inner hole of the sliding seat (23) is matched to fix the sliding seat (23) on the linear bearing (24), and meanwhile, the rotating shaft (26) matched with the connecting rod mechanism (3) is welded on the sliding seat (23).

4. A special tool for grinding the shovel surface of the headstock of a CNC lathe according to claim 3, characterized in that: one end of the guide shaft (22) and the end of the rotating shaft of the fulcrum fixing seat (1) are respectively equipped with a first limit block (25) and second limit block (27).

5. A special tool for grinding the shovel surface of the headstock of a CNC lathe according to claim 1, wherein the connecting rod mechanism (3) comprises a rotating shaft sleeve (31), a claw nail (32), a connecting rod (33) ), the rotating shaft sleeve (31) and the claw nail (32) are welded on the connecting rod (33), and the claw nail (32) passes through the screw hole of the spindle box body (4) and is connected to the spindle box body (4), rotating The shaft sleeve (31) is connected to the crowbar (2) through the welding shaft (26) on the sliding seat (23) of the crowbar (2).

6 . The special tool for grinding the shovel surface of the headstock of a CNC lathe according to claim 3 or 5 , wherein the connecting rod mechanism ( 3 ) is rotatably arranged around the guide shaft ( 22 ). 7 .