CN212122574U

CN212122574U - Scraping brush bar for machine tool protective cover

Info

Publication number: CN212122574U
Application number: CN202020104866.8U
Authority: CN
Inventors: 童玲萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-12-11
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a scraping brush strip for a machine tool protective cover, which comprises a scraping brush seat and a scraping brush strip body arranged on the scraping brush seat, it is characterized in that the scraping brush strip body has elasticity and comprises a scraping brush part, a left connecting part, a right connecting part and a top concave part, the scraping brush part extends out from the lower left corner of the scraping brush strip body, the left connecting part extends out from the upper left corner of the scraping brush strip body to the left side, the right connecting part extends out from the upper right corner of the scraping brush strip body to the right side, the top concave part is arranged between the left connecting part and the right connecting part and is used for connecting the left connecting part and the right connecting part, and is concavely curved towards the inside of the scraping brush strip body, the scraping brush seat is provided with a groove which is communicated with the outside through an opening at the bottom, the left connecting portion and the right connecting portion are arranged in the groove, an opening of the groove is clamped on the scraping brush strip body, and the scraping brush portion extends to a position right below the left end of the scraping brush seat. The utility model discloses an extension and the shortening of lathe protection casing provide as much space as possible.

Description

Scraping brush bar for machine tool protective cover

Technical Field

The utility model relates to a lathe technical field, especially a machine tool protection casing is used scrape brush-strip.

Background

Many machine tools require a telescoping shield to be mounted in order to protect the internal sliding track and the driving lead screw. Fig. 1 shows a conventional telescopic shield structure, which includes a plurality of shield bodies 91 with sizes gradually decreasing, the shield bodies 91 can slide relative to each other, and the shield bodies with smaller sizes slide to the shield bodies with larger sizes, and the shield retracts to be shortened, and the shield extends when sliding in the opposite direction. The shield usually contains chips, cutting fluid, dust, etc., and in order to prevent these substances from falling into the shield, the shield body 91 is provided with a wiper seat 93, and the wiper strip body 92 is attached to the wiper seat 93. The wiper seat 93 has a large portion on the outside of the shield body 91 on which it is mounted, and when the shield body 91 is retracted, the end of the next adjacent shield body 91 has a length (approximately equal to the length of the end of the wiper seat 93 extending beyond the shield body on which it is mounted) that cannot be retracted into the shield body 91, which makes the machine tool shield unable to reach the minimum travel of the machine tool, which is a problem in the machine tool manufacturer. The longer the shield is extended as much as possible while the retraction is as short as possible, which is more advantageous for the design and operation of the machine tool, and therefore, it is necessary to design a new wiper strip so that the shield is extended as long as possible while the retraction is as short as possible. In addition, the scraping brush strip body and the scraping brush seat have the defects of complex structure, difficult installation and the like.

Disclosure of Invention

In order to solve the problem, the utility model provides a machine tool protection casing is used scrapes brush strip to through the structure and the mounting means who scrapes the brush strip body and scrape the brush holder that change, make the protection casing stretch out as long as possible and return and contract as short as possible, and simplify structure and installation.

In order to achieve the above object, the scraping brush strip for the machine tool protective cover provided by the utility model comprises a scraping brush seat and a scraping brush strip body arranged on the scraping brush seat, and is characterized in that the scraping brush strip body has elasticity and comprises a scraping brush part, a left connecting part, a right connecting part and a top concave part, wherein the scraping brush part extends from the left lower corner of the scraping brush strip body to the left lower corner, the left connecting part extends from the left upper corner of the scraping brush strip body to the left side, the right connecting part extends from the right upper corner of the scraping brush strip body to the right side, the top concave part is arranged between the left connecting part and the right connecting part, the left connecting part and the right connecting part are connected and are concave towards the inner arc of the scraping brush strip body, the scraping brush seat is provided with a groove, the groove is communicated with the outside through an opening arranged at the bottom, the left connecting part and the right connecting part are arranged in the groove, and the opening, the scraping and brushing part extends to the position right below the left end of the scraping and brushing seat.

The utility model provides a scraping brush strip for lathe protection casing, the recess of scraping brush seat inside is the chucking of scraping brush strip body, and scraping brush seat does not have other unnecessary structures except the recess, and scraping brush seat can provide sufficient chucking strength for scraping brush strip body with less transverse dimension, and the space that occupies the shield body is very little, provides the space as much as possible for the extension and the shortening of lathe protection casing, and the protection casing can stretch out as long as possible and retract as short as possible; the scraping brush seat and the scraping brush strip body are simple in structure, convenient to install and firm.

Drawings

FIG. 1 is a schematic structural diagram of a conventional machine tool shield;

FIG. 2 is a cross-sectional view of a wiper strip;

FIG. 3 is a schematic structural view of the machine tool protective cover of the present invention;

fig. 4 is a view showing the machine tool shield of fig. 3 in a maximum contracted state.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 2, the scraping brush bar for the machine tool protective cover comprises a scraping brush bar body 1 and a scraping brush base 2, wherein the scraping brush bar body 1 and the scraping brush base 2 are both integrally long-strip-shaped, and both extend in a direction perpendicular to a paper surface in fig. 2. The wiping bar body 1 has a wiping portion 11, a left connecting portion 12, a right connecting portion 13, and a top recessed portion 14. Scrape brush part 11 and stretch out in the lower left corner position of scraping brush strip body 1 lower left corner, its thickness is more to outer tip thinner, this just makes the outer tip of scraping brush part 11 and its below be scraped the protecting shield body 3 full contact of brush, scrapes cleaner, scrapes the brush effect better. The left connecting part 12 extends towards the left side at the upper left corner of the scraping brush bar body 1, and the right connecting part 13 extends towards the right side at the upper right corner of the scraping brush bar body 1. The top recessed portion 14 connects the left connecting portion 12 and the right connecting portion 13 between the left connecting portion 12 and the right connecting portion 13, and is recessed toward the inner arc of the wiper strip body. The material of the scraping brush strip body 1 is preferably made of high polymer material polyurethane, has certain elasticity, can generate elastic deformation under the action of proper external force, and can be restored to the original shape after the external force disappears.

Referring to fig. 2, the scraping brush base 2 is also a strip and is formed by bending a metal sheet, and the material is preferably a cold-rolled steel sheet. The wiper blade base 2 has a groove 21, and the groove 21 communicates with the outside through an opening at the bottom. The cross-sectional shape of the groove 21 is an inverted "convex" shape, and the left and right sides of the opening of the groove 21 have a left chuckwall portion 22 and a right chuckwall portion 23, respectively, the left chuckwall portion 22 extending rightward from the left sidewall of the groove 21, and the right chuckwall portion 22 extending leftward from the right sidewall of the groove 21. The whole plane that is of roof face 24 of scraping brush seat 2, left wall 25 and right wall 26 are the plane of perpendicular to roof face 24, roof face 24 is for scraping the face at 2 tops of brush seat, left wall 25 is for scraping the face that 2 left ends of brush seat were sat, right wall 26 is for scraping the face that 2 right ends of brush seat were sat, this structure can be so that scrape 2 overall structure compactions of brush seat, in providing enough clamping-force for scraping brush strip body 1, the outside does not have unnecessary structure, do not occupy the space when the lathe protection casing shortens and elongates.

When putting into scraping brush strip body 1 and scraping brush holder 2, scrape brush strip body 1 with external force extrusion, scrape that brush strip body 1 takes place elastic deformation, make left connecting portion 12 and right connecting portion 13 be close to each other, insert left connecting portion 12 and right connecting portion 13 and scrape in the recess 21 of brush holder 2, the top of left connecting portion 12 and right connecting portion 13 is pressed on the roof of scraping brush holder 2, left card wall portion 22 and right card wall portion 23 card are on scraping brush strip body 1, to scraping brush strip body chucking, scrape brush strip body 1 and scrape brush holder 2 and firmly install together. The arc-shaped concave part 14 can enable the left connecting part 12 and the right connecting part 13 to be close to each other more easily under the action of external force, the wiping brush strip body 1 can be installed on the wiping brush seat 2 more easily and quickly, and the restoring elasticity of the arc-shaped concave part 14 enables the wiping brush strip body to be tightly clamped in the wiping brush seat 2, so that the installation is firmer.

Referring to fig. 3 and 4, the machine tool protective cover comprises a plurality of protective covers 3, the protective covers are gradually reduced in size and can slide relatively, the scraping brush bar is installed on the protective covers, the machine tool protective cover is contracted to be short by moving from the protective cover 3 with a smaller size to the protective cover 3 with a larger size, and fig. 4 shows a state when the machine tool protective cover is contracted to be the shortest; when the machine tool protective cover moves in the opposite direction, the machine tool protective cover extends to a long extent, and the state that the machine tool protective cover extends to the maximum extent is shown in figure 3. The top wall surface 24 of the scraping brush seat 2 is attached to the inner wall surface of the shield body 3, and the scraping brush seat 2 is fixedly installed on the upper shield body 3 in a welding mode, so that the installation is simple and the connection is firm. Scrape brush holder 2 wholly in the shield body 3 of its installation, left wall 25 flushes with the left end face of shield body 3, scrapes brush portion 11 of scraping brush strip body 1 and stretches out the left end face of shield body 3 and scrape the left wall 25 of brush holder 2 under, scrapes the left wall 25 of brush holder in this embodiment promptly for scraping the left end of brush holder, and this can guarantee that the lathe protection casing contracts and be the shortest. If the wiper seat 2 is not completely arranged in the shield body 3, and a part of the wiper seat extends out of the left end surface of the shield body 3, the shield body 3 below the wiper seat has a corresponding length and cannot be retracted into the shield body 3, and the shrinkage of the machine tool shield is reduced. If the wiper base 2 is completely arranged in the protective cover 3, but the left wall 25 of the wiper base 2 is at a distance from the left end face of the protective cover 3, when the machine tool protective cover is extended, the protective cover below the protective cover 3 adjacent to the protective cover has a corresponding distance and cannot be extended, and the extension of the machine tool protective cover is reduced.

The utility model discloses it is whole that the brush seat of scraping is whole internal at the guard shield of its installation, scrape the inside recess of brush seat and scrape brush strip body chucking, scrape the brush seat and do not have other unnecessary structures except the recess, scrape the brush seat and can use less transverse dimension for scraping the brush strip body and provide sufficient chucking strength, the space that occupies the guard shield body is very little, for the extension of lathe protection casing and shorten the space that provides as much as possible, the protection casing can stretch out as long as possible and return as short as possible. The scraping brush seat and the scraping brush strip body are simple in structure, convenient to install and firm.

Claims

1. A scraping brush bar for a machine tool protective cover, which comprises a scraping brush seat and a scraping brush bar body arranged on the scraping brush seat, it is characterized in that the scraping brush strip body has elasticity and comprises a scraping brush part, a left connecting part, a right connecting part and a top concave part, the scraping brush part extends out from the left lower corner of the scraping brush strip body to the left lower corner, the left connecting part extends out from the left upper corner of the scraping brush strip body to the left side, the right connecting part extends out from the right upper corner of the scraping brush strip body to the right side, the top concave part is arranged between the left connecting part and the right connecting part and is used for connecting the left connecting part and the right connecting part, and is concavely curved towards the inside of the scraping brush strip body, the scraping brush seat is provided with a groove which is communicated with the outside through an opening at the bottom, the left connecting portion and the right connecting portion are arranged in the groove, an opening of the groove is clamped on the scraping brush strip body, and the scraping brush portion extends to a position right below the left end of the scraping brush seat.

2. The scraping brush bar for a machine tool protective cover according to claim 1, wherein the top wall surface of the scraping brush base is a plane as a whole.

3. The scraping brush bar for a machine tool protective cover according to claim 2, wherein the left wall surface of the scraping brush holder is a plane perpendicular to the top wall surface.

4. The scraping brush bar for a machine tool protective cover according to claim 2, wherein the right wall surface of the scraping brush holder is a plane perpendicular to the top wall surface.

5. The scraping and brushing strip for the protective cover of a machine tool as claimed in claim 4, wherein the cross-sectional shape of the groove of the scraping and brushing base is an inverted convex shape, the left side and the right side of the opening of the groove are respectively provided with a left clamping wall portion and a right clamping wall portion, the left clamping wall portion extends rightwards from the left side wall of the groove, the right clamping wall portion extends leftwards from the right side wall of the groove, and the left clamping wall portion and the right clamping wall portion are clamped on the scraping and brushing strip body.

6. The wiper strip for a machine tool protective cover according to claim 5, wherein the thickness of the wiper portion becomes thinner toward the outer end portion.