CN115816137A

CN115816137A - Emergency braking protection device for manufacturing numerical control machine tool

Info

Publication number: CN115816137A
Application number: CN202211595579.1A
Authority: CN
Inventors: 汤光元; 周华萍; 邵帅; 邵天萱
Original assignee: Jiangsu Caijing Photoelectric Technology Co ltd
Current assignee: Jiangsu Caijing Photoelectric Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-21

Abstract

The invention relates to the technical field of machine tools, in particular to an emergency braking protection device for manufacturing a numerical control machine tool, which comprises a machine tool, wherein a main shaft is arranged in the machine tool, a brake disc is fixedly sleeved at one end of the main shaft, which is positioned on the inner wall of the machine tool, the outer wall of the brake disc is uniformly provided with a plurality of braking teeth, the top of the machine tool is provided with a braking groove, the braking groove is positioned above the brake disc, a braking device is arranged in the braking groove, the braking device comprises a top plate, the lower surface of the top plate is welded with a shell, the inner top wall of the shell is provided with an electromagnet, a movable plate is arranged below the electromagnet, an iron sheet is fixed on the upper surface of the movable plate, a connecting block extending out of the bottom wall of the shell is arranged below the movable plate, and the bottom end of the connecting block is connected with a brake block through an installation assembly.

Description

Emergency braking protection device for manufacturing numerical control machine tool

Technical Field

The invention relates to the technical field of machine tools, in particular to an emergency braking protection device for manufacturing a numerical control machine tool.

Background

A numerically controlled lathe is one of widely used numerically controlled machines, and automatically processes a workpiece according to a processing program programmed in advance. When parts are manufactured on the numerical control machine tool, the parts are cut at the high rotating speed of the main shaft, if power failure occurs in the process of machining, the numerical control machine tool stops working, and the main shaft needs to be braked to avoid deflection and reduce the precision of the parts or even scrap the parts.

For example, the patent with application number CN201720941719.4 includes a main shaft body, a linear driving mechanism, and a braking clamp, where a flange is fixedly connected to the main shaft body, and a wedge block for driving the braking clamp is fixedly connected to a movable end of the linear driving mechanism. The wedge block is arranged between the brake clamps, and a retraction spring is arranged between the brake clamps and the wedge block.

Although above-mentioned patent can be through the clamping part that the braking was pressed from both sides, can the centre gripping ring flange, make the main shaft stop the back and lock, under the condition that has a power failure, the cylinder outage is not convenient for start, can't adjust the distance between the clamping part and lock the main shaft, consequently designs a digit control machine tool manufacturing and uses emergency braking protection device in order to change above-mentioned technical defect, improves whole practicality, seems especially important.

Disclosure of Invention

The invention aims to provide an emergency braking protection device for manufacturing a numerical control machine tool, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an emergency braking protection device for manufacturing a numerical control machine tool comprises a machine tool, wherein a main shaft is arranged inside the machine tool, a brake disc is fixedly sleeved at one end, located on the inner wall of the machine tool, of the main shaft, the outer wall of the brake disc is uniformly provided with a plurality of braking teeth, a brake groove is formed in the top of the machine tool and located above the brake disc, a brake device is arranged in the brake groove and comprises a top plate, a shell is welded to the lower surface of the top plate, an electromagnet is installed on the inner top wall of the shell, a movable plate is arranged below the electromagnet, an iron sheet is fixed to the upper surface of the movable plate, a connecting block extending out of the bottom wall of the shell is arranged below the movable plate, a brake block is connected to the bottom end of the connecting block through a mounting assembly, and the bottom end of the brake block is matched with tooth grooves of the plurality of braking teeth;

and a lead communicated with the electromagnet is arranged in the center of the top plate, and the other end of the lead is connected with an interface arranged on the machine tool in an inserting manner through a joint.

According to the preferable scheme of the invention, the electromagnet is connected with the iron sheet in a magnetic adsorption manner, the two sides of the connecting block are symmetrically provided with the extension springs, and the two ends of each of the two extension springs are respectively and fixedly connected with the lower surface of the moving plate and the inner bottom wall of the shell.

In a preferred embodiment of the present invention, the detent groove is matched with the housing, and the top plate is mounted on the top of the machine tool by bolts.

As a preferable scheme of the invention, the corners of the bottom end of the brake block are all provided with cambered surfaces.

As a preferable scheme of the invention, the mounting assembly comprises a mounting groove formed in one side of the bottom end of the connecting block, the top of the brake block is matched with the mounting groove, a first connecting groove communicated with the connecting block is formed above the mounting groove, a second connecting groove is formed in the top of the brake block, clamping rods are horizontally welded in the first connecting groove and the second connecting groove, the first connecting groove and the second connecting groove are matched to form a limiting groove, a limiting block is mounted in the limiting groove, and through holes matched with the clamping rods are symmetrically formed in the limiting block.

As a preferable scheme of the invention, a slide block is integrally arranged on the inner wall of the long edge of the mounting groove, a sliding groove is arranged on the outer wall of the brake block close to the slide block, and the sliding groove is connected with the slide block in a sliding manner.

Compared with the prior art, the invention has the beneficial effects that: the problem that the background art provides is solved, the connector of the braking device is inserted into an interface on a machine tool, an electromagnet inside the braking device is electrified, the electrified electromagnet generates magnetism to adsorb an iron sheet, the iron sheet drives a moving plate to move upwards under the action of the magnetism, the moving plate which moves upwards drives a braking block to move upwards through a connecting block and stretches a stretching spring, then the braking block is placed into a braking groove, a top plate is fixed on the machine tool through a bolt, the contracted braking block is positioned on a braking disc, the electromagnet loses electricity and the magnetism is not adsorbed on the iron sheet when the power is off, the moving plate moves downwards under the action of the stretching spring to reset, the connecting block drives the braking block to move downwards so that the braking block is inserted into a tooth groove between braking teeth, and a main shaft is clamped, so that the main shaft is braked and protected under the condition of sudden power failure, deflection is avoided, and the precision of parts being processed is reduced or even scrapped; meanwhile, the brake block is convenient to replace due to abrasion after working for a long time through the mounting groove, the clamping rod, the limiting groove and the limiting block in the mounting assembly, and the brake effect is ensured.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the brake apparatus of the present invention;

fig. 4 is a schematic view of the mounting assembly of the present invention.

In the figure: 1. a machine tool; 101. a brake groove; 102. a main shaft; 1021. a brake disc; 1022. a brake tooth; 2. a braking device; 201. a top plate; 2011. a bolt; 202. a housing; 203. an electromagnet; 204. moving the plate; 205. connecting blocks; 206. a brake pad; 2061. a chute; 207. iron sheets; 208. an extension spring; 3. mounting the component; 301. mounting grooves; 3011. a slider; 302. a first connecting groove; 303. a second connecting groove; 304. a clamping and connecting rod; 305. a limiting groove; 306. a limiting block; 3061. a through hole; 4. a wire; 401. and (4) a joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution:

an emergency braking protection device for manufacturing a numerical control machine tool comprises a machine tool 1, a main shaft 102 is arranged inside the machine tool 1, one end, located on the inner wall of the machine tool 1, of the main shaft 102 is fixedly sleeved with a brake disc 1021, a plurality of brake teeth 1022 are uniformly arranged on the outer wall of the brake disc 1021, a brake groove 101 is formed in the top of the machine tool 1, the brake groove 101 is located above the brake disc 1021, a brake device 2 is arranged in the brake groove 101, the brake device 2 comprises a top plate 201, a shell 202 is welded on the lower surface of the top plate 201, an electromagnet 203 is installed on the inner top wall of the shell 202, a moving plate 204 is arranged below the electromagnet 203, an iron sheet 207 is fixed on the upper surface of the moving plate 204, the electromagnet 203 is connected with the iron sheet 207 in a magnetic adsorption manner, the below of movable plate 204 is equipped with connecting block 205 that extends the diapire of casing 202, the bilateral symmetry of connecting block 205 is equipped with extension spring 208, two extension spring 208's both ends respectively with movable plate 204 lower surface and casing 202 bottom wall fixed connection, the bottom of connecting block 205 is connected with brake block 206 through installation component 3, the bottom of brake block 206 and the tooth's socket phase-match of a plurality of brake tooth 1022, the bottom corner of brake block 206 all sets up to the cambered surface, brake groove 101 and casing 202 phase-match, roof 201 passes through the bolt 2011 and installs at the 1 top of lathe, the top center of roof 201 is equipped with the communicating wire 4 with electro-magnet 203, the interface plug connection that the wire 4 other end was seted up through joint 401 and lathe 1.

Before the numerical control machine tool is used for manufacturing parts, a worker inserts a joint 401 of a braking device 2 into an interface on the machine tool 1, energizes an electromagnet 203 inside the machine tool, the energized electromagnet 203 generates magnetism to adsorb an iron sheet 207, the iron sheet 207 drives a moving plate 204 to move upwards under the action of the magnetism, the moving plate 204 moving upwards drives a brake block 206 to move upwards through a connecting block 205 and stretch a stretching spring 208, then the brake block 206 is placed into a brake groove 101, a top plate 201 is fixed on the machine tool 1 through a bolt 2011, the bottom end of the contracted brake block 206 is positioned on a brake disc 1021 at the moment, installation of the braking device 2 and the machine tool 1 is achieved, when the machine tool 1 is powered off, the electromagnet 203 is powered off and does not absorb the iron sheet 207, the moving plate 204 moves downwards under the elasticity of the stretching spring 208 to reset, at the moment, the connecting block 205 drives the brake block 206 to move downwards along with the brake block 206 so that the brake block 206 is inserted into a tooth groove between brake teeth 1022, and a spindle 102 rotating under the inertia effect is clamped, so that the spindle 102 is braked and protected under the condition that the power failure is suddenly caused, deflection of the moving plate is avoided, and the precision of the moving plate is reduced and even scrapped.

An embodiment, please refer to fig. 3 and fig. 4, the installation component 3 includes an installation groove 301 opened at one side of the bottom end of the connection block 205, the top of the connection block 206 matches with the installation groove 301, the connection block 205 is located above the installation groove 301 and has a first connection groove 302 communicated with the top, a second connection groove 303 has been opened at the top of the connection block 206, a clamping rod 304 is welded in the first connection groove 302 and the second connection groove 303 in a horizontal manner, and the first connection groove 302 and the second connection groove 303 cooperate to form a limiting groove 305, a limiting block 306 is installed in the limiting groove 305, through holes 3061 matched with the clamping rod 304 are symmetrically opened on the limiting block 306, a slider 3011 is provided at the inner wall of the long edge of the installation groove 301 in an integrated manner, a sliding groove 2061 is provided at the outer wall of the connection block 206 close to the slider 3011, and the sliding groove 2061 is connected with the slider 3011 in a sliding manner. Guide holes are formed in the inner walls of the first connecting groove 302 and the second connecting groove 303, which are located on the clamping rod 304, and used for ejecting the limiting block 306 out by using a tool.

When the braking device 2 is used for a period of time, the worn braking block 206 needs to be replaced, at this time, a worker uses a tool to unscrew the bolt 2011 to cancel the fixation of the top plate 201 and the machine tool 1, pulls the top plate 201 up to drive the shell 202 to move out of the braking groove 101, inserts a screwdriver into the guide hole at this time, ejects the limiting block 306 from the limiting groove 305 and the clamping rod 304, separates the limiting groove 305 into the first connecting groove 302 and the second connecting groove 303 at this time, completes the detachment and replacement of the braking block 206, inserts the top of a new braking block 206 into the mounting groove 301 during the replacement, moves the sliding groove 2061 along the sliding block 3011 until the first connecting groove 302 and the second connecting groove 303 contact to form the limiting groove 305, inserts the limiting block 306 into the limiting groove 305 and enables the two clamping rod 304 to pass through the through hole 3061, completes the installation and the replacement, and ensures the braking effect.

The working process of the invention is as follows: before the numerical control machine tool manufactures parts, a worker inserts a joint 401 of a braking device 2 into an interface on the machine tool 1, energizes an electromagnet 203 inside the machine tool, the energized electromagnet 203 generates magnetism to adsorb an iron sheet 207, the iron sheet 207 drives a moving plate 204 to move upwards under the action of the magnetism, the moving plate 204 moving upwards drives a brake block 206 to move upwards through a connecting block 205 and stretch a stretching spring 208, then the brake block 206 is placed into a brake groove 101, a top plate 201 is fixed on the machine tool 1 through a bolt 2011, the bottom end of the contracted brake block 206 is positioned on a brake disc 1021 at the moment, the installation of the braking device 2 and the machine tool 1 is realized, when the machine tool 1 is powered off, the deenergized magnetism of the electromagnet 203 is not absorbed on the iron sheet 207, the moving plate 204 moves downwards under the elasticity of the stretching spring 208 to reset, at the moment, the connecting block 205 drives the brake block 206 to move downwards along with the moving plate 204 so that the brake block 206 is inserted into a tooth groove between brake teeth 1022, the main shaft 102 rotating under the inertia effect is blocked, when the braking device 2 is used for a period of time, the worn braking block 206 needs to be replaced, at this time, a worker uses a tool to unscrew the bolt 2011 to cancel the fixation of the top plate 201 and the machine tool 1, the top plate 201 is pulled up to drive the shell 202 to move out of the braking groove 101, at this time, a screwdriver is used to insert into the guide hole, for example, to eject the limiting block 306 from the limiting groove 305 and the clamping rod 304, at this time, the limiting groove 305 is separated into the first connecting groove 302 and the second connecting groove 303, the braking block 206 is detached and replaced, when the brake block is replaced, the top of a new braking block 206 is inserted into the mounting groove 301, the sliding groove 2061 is moved along the sliding block 3011 until the first connecting groove 302 and the second connecting groove 303 contact to form the limiting groove 305, the limiting block 306 is inserted into the limiting groove 305 and the two clamping rods 304 pass through the through holes 3061, the installation is completed and the brake is then replaced in the brake groove 101.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a digit control machine tool is made with emergency braking protection device, includes lathe (1), its characterized in that: the brake device comprises a machine tool (1), and is characterized in that a main shaft (102) is arranged in the machine tool (1), a brake disc (1021) is fixedly sleeved at one end, located on the inner wall of the machine tool (1), of the main shaft (102), a plurality of brake teeth (1022) are uniformly arranged on the outer wall of the brake disc (1021), a brake groove (101) is formed in the top of the machine tool (1), the brake groove (101) is located above the brake disc (1021), a brake device (2) is arranged in the brake groove (101), the brake device (2) comprises a top plate (201), a shell (202) is welded on the lower surface of the top plate (201), an electromagnet (203) is installed on the inner top wall of the shell (202), a moving plate (204) is arranged below the electromagnet (203), an iron sheet (207) is fixed on the upper surface of the moving plate (204), a connecting block (205) extending out of the bottom wall of the shell (202) is arranged below the moving plate (204), a brake block (206) is connected at the bottom end of the connecting block (205) through an installation component (3), and the bottom end of the brake block (206) is matched with the brake teeth grooves (1022);

the center of the top plate (201) is provided with a lead (4) communicated with the electromagnet (203), and the other end of the lead (4) is connected with an interface arranged on the machine tool (1) in an inserting manner through a connector (401).

2. The emergency brake protection device for manufacturing the numerical control machine tool as claimed in claim 1, wherein: the electromagnet (203) is connected with an iron sheet (207) in a magnetic adsorption mode, the two sides of the connecting block (205) are symmetrically provided with extension springs (208), and the two ends of each extension spring (208) are fixedly connected with the lower surface of the movable plate (204) and the inner bottom wall of the shell (202) respectively.

3. The emergency brake protection device for manufacturing the numerical control machine tool as claimed in claim 1, wherein: the brake groove (101) is matched with the shell (202), and the top plate (201) is installed on the top of the machine tool (1) through a bolt (2011).

4. The emergency brake protection device for manufacturing the numerical control machine tool as claimed in claim 1, wherein: the corners of the bottom end of the brake block (206) are all provided with cambered surfaces.

5. The emergency brake protection device for manufacturing the numerical control machine tool as claimed in claim 1, wherein: installation component (3) are including offering mounting groove (301) in connecting block (205) bottom one side, brake pad (206) top and mounting groove (301) phase-match, connecting block (205) are located mounting groove (301) top and have seted up communicating first spread groove (302), second spread groove (303) have been seted up at brake pad (206) top, equal horizontal welding has joint pole (304) in first spread groove (302) and second spread groove (303), just first spread groove (302) cooperate with second spread groove (303) to constitute spacing groove (305), install stopper (306) in spacing groove (305), stopper (306) are gone up the symmetry and have been seted up with joint pole (304) assorted through-hole (3061).

6. The emergency brake protection device for manufacturing the numerical control machine tool as claimed in claim 5, wherein: the long-edge inner wall of the mounting groove (301) is integrally provided with a sliding block (3011), the outer wall of the brake block (206) close to the sliding block (3011) is provided with a sliding groove (2061), and the sliding groove (2061) is in sliding connection with the sliding block (3011).