CN114734250A

CN114734250A - Milling and boring machine with exchange workbench and use method thereof

Info

Publication number: CN114734250A
Application number: CN202210295377.9A
Authority: CN
Inventors: 曹移伟; 张力; 游爽; 赵朋
Original assignee: Neway Cnc Equipment Suzhou Co ltd
Current assignee: Neway Cnc Equipment Suzhou Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-12
Also published as: WO2023179022A1

Abstract

The invention discloses a milling and boring machine with an exchange workbench, belonging to the field of machine tools, wherein a sliding structure of a rotary workbench can move along a machine tool body, two exchange devices are positioned at one side of the rotary workbench and arranged along the sliding direction of the sliding structure, the sliding structure moves along the machine tool body until being aligned with the exchange devices, a moving seat can move back and forth relative to a support to enable a pulling structure to extend out or reset so that a working table surface on the rotary workbench can move to the exchange devices or the working table surface on the exchange devices can move to the rotary workbench, through the design of the two exchange devices and the two working table surfaces, when the working table surface with a workpiece is in the processing process, the other working table surface is in an idle state on the exchange devices, the next workpiece can be clamped while the machine is still, the downtime of a host machine when the workpiece is disassembled and clamped is eliminated, and the continuous work of a machine tool spindle is realized, the utilization rate of the machine tool is greatly improved. The application also comprises a using method of the milling and boring machine with the exchange workbench.

Description

Milling and boring machine with exchange workbench and use method thereof

Technical Field

The invention relates to the field of machine tools, in particular to a milling and boring machine with an exchange workbench and a using method thereof.

Background

The milling and boring machine is a universal machining device with excellent structural performance, wide process range and high production efficiency, and is widely applied to the fields of relevant machining of vehicles, ships, energy sources, chemical engineering, metallurgy and the like. The existing milling and boring machines are all provided with a set of rotary table structure which is provided with a unique working table surface, the structure determines that the use mode of the machine tool is intermittent work, namely after one workpiece is machined, the machine tool needs to be stopped to wait for the disassembly of the finished workpiece and the clamping of a new workpiece, and the utilization rate of a main shaft of the machine tool is not high.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a milling and boring machine with an exchange workbench, which can eliminate the downtime waiting time of a machine tool main machine when a workpiece is disassembled and clamped, realize the continuous operation of a machine tool main shaft and improve the production efficiency.

In order to overcome the defects of the prior art, the invention also aims to provide a use method of the milling and boring machine with the exchange workbench, which can eliminate the stop waiting time of a machine tool main machine when a workpiece is disassembled and clamped, realize the continuous work of the machine tool main shaft and improve the production efficiency.

One of the purposes of the invention is realized by adopting the following technical scheme:

a milling and boring machine with an exchange workbench comprises a main machine and a rotary workbench, wherein the rotary workbench is positioned at one side of the main machine, the rotary worktable comprises a lathe bed and a sliding structure, the sliding structure can move along the lathe bed, the milling and boring machine with the exchange workbench further comprises two exchange devices and two working tables, the two exchange devices are positioned on one side of the rotary workbench and arranged along the sliding direction of the sliding structure, each exchange device comprises a bracket, a moving seat arranged on the bracket in a sliding manner and a pulling structure arranged on the moving seat, the sliding structure moves along the lathe bed until the sliding structure is aligned with the exchange device, and the moving seat can move back and forth relative to the support to enable the pulling structure to extend out or reset so that the working table surface on the rotary working table can move to the exchange device or the working table surface on the exchange device can move to the rotary working table.

Furthermore, the working table comprises a hook, the exchange device further comprises a guide post, the guide post is installed on the pulling structure, and the pulling structure drives the guide post to enter the hook or be separated from the hook.

Further, the pulling structure includes first sprocket, second sprocket and chain, first sprocket with the second sprocket rotate install in remove the seat, the chain cover is located first sprocket with between the second sprocket, the guide post is fixed in the chain.

Furthermore, exchange device still includes position detection device, position detection device includes limit switch and bumps the piece, limit switch with bump the piece and install respectively in remove the seat and the chain, bump the piece with limit switch collides in order to detect table surface's position.

Further, sliding construction includes top slide, guide rail and clamping cylinder, the guide rail is used for the installation table surface, the guide rail passes through clamping cylinder install in the top slide, clamping cylinder drives the guide rail is relative top slide reciprocates, so that table surface is relative rotary worktable goes up and down.

Furthermore, sliding construction still includes the positioning cylinder, the positioning cylinder install in the top slide, the positioning cylinder can with table surface cooperation makes the top slide with table surface fixes a position.

Further, sliding construction still includes slide, dabber, circle grating chi and gyration driving piece down, the top slide passes through the dabber rotate install in slide down, the gyration driving piece drives the top slide is relative the slide rotates down, circle grating chi makes slide location on.

Furthermore, the exchange device further comprises a guide structure, the guide structure comprises a slide rail and a plurality of guide wheels, the slide rail is mounted on the support, the guide wheels are rotatably mounted inside the slide rail and protrude out of the surface of the slide rail, the guide wheels are positioned on the upper surface and the side surface of the slide rail, and the guide wheels enable rolling friction to be formed between the working table and the slide rail.

Furthermore, guide structure still includes prevents the gyro wheel that topples, prevent that the gyro wheel that topples rotate install in inside the slide rail and follow the slide rail stretches out, prevent that the gyro wheel that topples is located the slide rail is inboard, prevent the gyro wheel that topples with table surface bottom contact prevents table surface is in exchange device toppling or upset.

The second purpose of the invention is realized by adopting the following technical scheme:

a use method of the milling and boring machine with the exchange workbench comprises the following steps:

the two working platforms are respectively arranged on the two exchange devices, and a workpiece is clamped on one working platform;

the sliding structure of the rotary working table moves relative to the lathe bed until the sliding structure is aligned with the exchange device for installing the workpiece;

the clamping oil cylinder drives the guide rail to rise relative to the upper sliding seat to prepare for bearing the workbench surface, and the positioning oil cylinder is in a retraction state at the moment;

the exchange device aligned with the sliding structure drives the working table surface and the workpiece to extend to the position right above the sliding structure through the first driving part and the second driving part;

a positioning oil cylinder of the sliding structure is lifted, and a clamping oil cylinder is retracted, so that the working table surface and the sliding structure are positioned and clamped;

the main machine processes the workpiece on the rotary worktable and simultaneously clamps the workpiece on the other worktable surface;

after the workpiece on the rotary worktable is machined, transferring the machined workpiece and the worktable surface on which the workpiece is arranged into an exchange device;

and transferring the working table surface on the other exchange device and the clamped workpiece to a rotary working table, machining the workpiece by the host machine to realize continuous operation, and simultaneously disassembling the machined workpiece and installing the next workpiece to be machined.

Compared with the prior art, the rotary worktable of the milling and boring machine with the exchange worktable comprises a lathe bed and a sliding structure, the sliding structure can move along the lathe bed, the milling and boring machine with the exchange worktable also comprises two exchange devices and two working platforms, the two exchange devices are positioned at one side of the rotary worktable and are arranged along the sliding direction of the sliding structure, each exchange device comprises a bracket, a moving seat slidably arranged on the bracket and a pulling structure arranged on the moving seat, the sliding structure moves along the lathe bed until being aligned with the exchange devices, the moving seat can reciprocate relative to the bracket to enable the pulling structure to extend out or reset so that the working platforms on the rotary worktable can move to the exchange devices or the working platforms on the exchange devices can move to the rotary worktable, and by adopting the design of the two exchange devices and the two working platforms, when the working platforms with workpieces are in one processing process, the other working table is in an idle state on the exchange device, and can finish clamping of the next workpiece while the workpiece is still in the idle state, so that the halt waiting time of the main machine during workpiece disassembly and clamping is eliminated, the continuous working of the machine tool spindle is realized, and the utilization rate of the machine tool is greatly improved.

Drawings

FIG. 1 is a perspective view of a milling and boring machine with an exchange workbench according to the invention;

FIG. 2 is a perspective view of a rotary table of the boring and milling machine with an exchange table of FIG. 1;

FIG. 3 is a cross-sectional view of the rotary table of FIG. 2;

FIG. 4 is a perspective view of an exchange device of the boring and milling machine with an exchange table of FIG. 1;

FIG. 5 is a top view of the exchange device of FIG. 4;

fig. 6 is a schematic diagram of the use state of the exchange device of fig. 4.

In the figure: 10. a host; 11. a body; 12. a base; 13. a column; 14. a main spindle box; 15. a spindle structure; 20. a rotary table; 21. a bed body; 22. a sliding structure; 220. a lower slide seat; 221. a rotary drive member; 222. an upper slide seat; 223. clamping the oil cylinder; 224. a guide rail; 225. a mandrel; 226. a mandrel bearing; 227. a circular grating ruler; 228. a ring gear; 229. positioning the oil cylinder; 30. a work table; 31. a body; 32. hooking; 40. a switching device; 41. a support; 410. a main body; 411. a support; 42. a guide structure; 420. a slide rail; 421. a guide wheel; 422. an overturn-preventing roller; 43. a movable seat; 44. a first driving member; 45. a pulling structure; 450. a second driving member; 451. a first sprocket; 452. a second sprocket; 453. a chain; 46. a guide post; 47. a position detection device; 470. a limit switch; 471. bumping blocks; 50. a chip removal machine; 60. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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, secured by the intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on 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.

Fig. 1 to 6 show a boring and milling machine with an exchange workbench according to the present invention, which comprises a main machine 10, a rotary workbench 20, two work tables 30, two exchange devices 40, two chip discharging machines 50, and a controller 60.

The main body 10 includes a main body 11, a base 12, a column 13, a spindle head 14, and a spindle structure 15. The upright 13 is mounted to the body 11 by a base 12 so as to slide back and forth. The spindle structure 15 is mounted on the column 13 by the headstock 14 to slide up and down.

The rotary table 20 is located at one side of the main machine 10, and the rotary table 20 and the main machine 10 are arranged in a T shape. The rotary table 20 includes a bed 21 and a slide structure 22. The slide structure 22 is slidable in a first direction with respect to the bed 21. The slide structure 22 includes a lower slide 220, a rotary drive 221, an upper slide 222, a clamping cylinder 223, a guide rail 224, a spindle 225, a spindle bearing 226, a circular scale 227, a gear ring 228, and a positioning cylinder 229.

The upper slide 222 is rotatably mounted to the lower slide 220 by a spindle 225. The rotary drive 221 and the gear ring 228 drive the upper slide 222 to rotate through the spindle 225, and the first bearing 226 is installed between the spindle 225 and the upper slide 222. The circular grating scale 227 can precisely position the upper slide 222. The clamp cylinder 223 is attached to the upper carriage 222, and the guide rail 224 is attached to the output portion of the clamp cylinder 223. The clamp cylinder 223 is capable of moving the rail 224 up and down relative to the upper slide 222 to receive the work surface 30. A positioning cylinder 229 is mounted to the upper slide 222 and the positioning cylinder 229 can be extended to engage the work surface 30 to position the work surface 30.

The work table 30 includes a body 31 and a hook 32. The hook 32 is positioned at the edge of the body 31, and a groove is arranged on the hook 32.

The exchanging device 40 includes a bracket 41, a guide structure 42, a movable base 43, a first driving member 44, a pulling structure 45, a guide post 46, and a position detecting device 47.

The holder 41 includes a body 410 and a seat 411. The body 410 is bolted to the mount 411.

The number of the guide structures 42 is two, and the two guide structures 42 are respectively installed at two sides of the support 411. Each guiding structure 42 includes a sliding rail 420, a plurality of guiding wheels 421, and a plurality of anti-overturn rollers 422. The plurality of guide wheels 421 are rotatably mounted inside the slide rail 420 and are uniformly spaced along the extending direction of the slide rail 420. The guide wheels 421 protrude from the surface of the slide rail 420, the guide wheels 421 are located on the upper surface and the side surfaces of the slide rail 420, and the sliding friction between the working platform 30 and the slide rail 420 is changed into rolling friction by the guide wheels 421, so that the friction resistance is reduced. A plurality of overturn-preventing rollers 422 are rotatably installed inside the sliding rail 420 and are uniformly spaced along the extending direction of the sliding rail 420. A plurality of anti-overturning rollers 422 extend from the sliding rails 420, the anti-overturning rollers 422 are located inside the sliding rails 420, and the anti-overturning rollers 422 contact with the bottom of the working platform 30 to prevent the working platform 30 from overturning or turning inside the exchanging device 40.

The movable base 43 is slidably mounted to the bracket 41, the first driving member 44 is fixed to the bracket 41, and an output portion of the first driving member 44 is connected to the movable base 43. The first driving member 44 drives the movable base 43 to slide relative to the bracket 41. Specifically, the first driving member 44 is a cylinder.

The pulling structure 45 includes a second driver 450, a first sprocket 451, a second sprocket 452, and a chain 453. The second driver 450 is fixed to the movable base 43, and the first sprocket 451 and the second sprocket 452 are rotatably attached to the movable base 43. The second sprocket 452 is sleeved between the first sprocket 451 and the second sprocket 452. The output end of the second driving member 450 is connected to the first chain wheel 451, and the second driving member 450 rotates the first chain wheel 451, thereby operating the chain 453. The second sprocket 452 can adjust the position mounted on the moving base 43 through the waist hole, thereby keeping the chain 453 tensioned. Specifically, the second driving member 450 is a motor.

The guiding column 46 is fixedly installed on the chain 453, and the chain 453 drives the guiding column 46 to move so that the guiding column 46 is buckled with the body 31 of the working table 30, so that the chain 453 drives the working table 30.

The position detector 47 includes a limit switch 470 and a stopper 471. The limit switch 470 is fixed on the movable base 43, the collision block 471 is fixed on the chain 453, and the chain 453 drives the collision block 471 to move to touch the limit switch 470, so as to determine the position of the working table 30. Specifically, the number of the limit switches 470 may be multiple, and multiple limit switches 470 are disposed at different positions, so that the working table 30 can be detected at different positions.

The number of the chip discharging machines 50 is two, and the two chip discharging machines 50 are respectively positioned on two side edges of the rotary table 20.

The controller 60 is electrically connected to the main machine 10, the rotary table 20, the two exchanging devices 40 and the two chip dischargers 50 to control the horizontal milling and boring machine to work.

When the milling and boring machine with the exchange workbench is used, in an initial state, the main machine 10 is in a state to be processed, one workbench surface 30 is arranged in the exchange device 40 on the left side, and the other workbench surface 30 is arranged in the exchange device 40 on the right side. Clamping a workpiece on the worktable 30 on the exchange device 40 on the left; the sliding structure 22 of the rotary table 20 moves relative to the bed 21 until it is aligned with the left exchange device 40; the clamping cylinder 223 of the rotary table 20 drives the guide rail 224 to rise relative to the upper slide base 222 to prepare for receiving the working platform 30, and the positioning cylinder 229 is in a retraction state; the left exchange device 40 aligned with the sliding structure 22 drives the movable base 43 to extend through the first driving member 44, so that the working table 30 is initially moved out of the left exchange device 40. The second driving member 450 is controlled to rotate the chain 453, and the work table 30 is moved to a position right above the rotary table 20 by the guide column 46. The positioning oil cylinder 229 of the sliding structure 22 is lifted, and the clamping oil cylinder 223 is retracted, so that the working table surface 30 and the sliding structure 22 are positioned and clamped; the main machine 10 processes the workpiece on the rotary table 20, and simultaneously clamps the next workpiece to be processed on the table surface 30 on the right exchange device 40; after the workpiece on the rotary table 20 is processed, the processed workpiece and the working table 30 on which the workpiece is mounted are transferred to the left exchange device 40; the sliding structure 22 of the rotary table 20 moves relative to the bed 21 until being aligned with the right exchange device 40; the clamping cylinder 223 of the rotary table 20 drives the guide rail 224 to rise relative to the upper slide 222 to prepare for receiving the work table 30, and the positioning cylinder 229 is in a retracted state; the right exchange device 40 aligned with the sliding structure 22 drives the movable base 43 to extend through the first driving member 44, so that the working platform 30 is initially moved out of the right exchange device 40. The second driving member 450 is controlled to rotate the chain 453, and the work table 30 is moved to a position right above the rotary table 20 by the guide column 46. The positioning oil cylinder 229 of the sliding structure 22 is lifted, and the clamping oil cylinder 223 is retracted, so that the working table surface 30 and the sliding structure 22 are positioned and clamped; the main machine 10 processes a workpiece on the rotary table 20. And simultaneously, the workpiece on the work table 30 on the exchange device 40 on the left is removed and a next workpiece to be processed is clamped. By repeating the steps, the continuous operation of the machine tool main machine 10 can be realized, and the downtime waiting time for disassembling and clamping the workpiece is eliminated.

The application also relates to a use method of the milling and boring machine with the exchange workbench, which specifically comprises the following steps:

the two working platforms 30 are respectively arranged on the two exchange devices 40, and a workpiece is clamped on one working platform 30;

the sliding structure 22 of the rotary table 20 moves relative to the bed 21 until it is aligned with the exchange device 40 for mounting the workpiece;

the clamping cylinder 223 drives the rail 224 to rise relative to the upper slide 222 in preparation for receiving the work surface 30, while the positioning cylinder 229 is in a retracted state;

the exchange device 40 aligned with the sliding structure 22 drives the working table 30 and the workpiece to extend to the position right above the sliding structure 22 through the first driving member 44 and the second driving member 450;

the positioning oil cylinder 229 of the sliding structure 22 is lifted, and the clamping oil cylinder 223 is retracted, so that the working table surface 30 and the sliding structure 22 are positioned and clamped;

the main machine 10 processes the workpiece on the rotary worktable 20 and clamps the workpiece on the other worktable surface 30;

after the workpiece on the rotary table 20 is processed, the processed workpiece and the table top 30 on which the workpiece is mounted are transferred to an empty exchange device 40;

the worktable 30 and the clamped workpiece on the other exchange device 40 are transferred to the rotary worktable 20, the main machine 10 processes the workpiece to realize continuous operation, and simultaneously, the processed workpiece is disassembled and the next workpiece to be processed is installed.

The machine tool with the exchange workbench can eliminate the downtime of the machine tool main machine 10 when a workpiece is disassembled and clamped, realize the continuous work of the main shaft of the machine tool, and greatly improve the utilization rate of the milling and boring machine main machine 10.

The above examples only show several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.

Claims

1. The utility model provides a band replacement work platform's boring and milling machine, includes host computer and swivel work head, the swivel work head is located host computer one side, its characterized in that: the rotary worktable comprises a lathe bed and a sliding structure, the sliding structure can move along the lathe bed, the milling and boring machine with the exchange worktable further comprises two exchange devices and two working tables, the two exchange devices are located on one side of the rotary worktable and arranged along the sliding direction of the sliding structure, each exchange device comprises a support, a moving seat slidably mounted on the support and a pulling structure mounted on the moving seat, the sliding structure moves along the lathe bed until being aligned with the exchange device, and the moving seat can move back and forth relative to the support to enable the pulling structure to stretch out or reset so that the working tables on the rotary worktable move to the exchange device or the working tables on the exchange device move to the rotary worktable.

2. The milling and boring machine with the exchange workbench according to claim 1, characterized in that: the working table comprises a hook, the exchange device further comprises a guide post, the guide post is mounted on the pulling structure, and the pulling structure drives the guide post to enter the hook or be separated from the hook.

3. The milling and boring machine with the exchange workbench according to claim 2, characterized in that: the pulling structure comprises a first chain wheel, a second chain wheel and a chain, the first chain wheel and the second chain wheel are rotatably installed on the moving seat, the chain is sleeved on the first chain wheel and the second chain wheel, and the guide post is fixed on the chain.

4. The milling and boring machine with the exchange workbench according to claim 3, characterized in that: the exchange device further comprises a position detection device, the position detection device comprises a limit switch and a collision block, the limit switch and the collision block are respectively installed on the movable base and the chain, and the collision block collides with the limit switch to detect the position of the workbench surface.

5. The milling and boring machine with the exchange workbench according to claim 1, characterized in that: sliding construction includes slide, guide rail and clamping cylinder, the guide rail is used for the installation table surface, the guide rail passes through clamping cylinder install in the slide, clamping cylinder drives the guide rail is relative slide up reciprocates, so that table surface is relative rotary table goes up and down.

6. The milling and boring machine with the exchange workbench according to claim 5, characterized in that: the sliding structure further comprises a positioning oil cylinder, the positioning oil cylinder is installed on the upper sliding seat, and the positioning oil cylinder can be matched with the working table to enable the upper sliding seat to be positioned with the working table.

7. The milling and boring machine with the exchange workbench according to claim 5, characterized in that: sliding construction still includes sliding seat, dabber, circle grating chi and gyration driving piece, the top slide pass through the dabber rotate install in the sliding seat down, the gyration driving piece drives the top slide is relative the sliding seat rotates down, circle grating chi makes go up the sliding seat location.

8. The milling and boring machine with the exchange workbench according to claim 1, characterized in that: the exchange device further comprises a guide structure, the guide structure comprises a slide rail and a plurality of guide wheels, the slide rail is mounted on the support, the guide wheels are rotatably mounted inside the slide rail and protrude out of the surface of the slide rail, the guide wheels are located on the upper surface and the side surface of the slide rail, and the guide wheels enable rolling friction to be formed between the working table and the slide rail.

9. The milling and boring machine with the exchange workbench according to claim 8, wherein: the guide structure further comprises an anti-overturning roller, the anti-overturning roller is rotatably installed inside the sliding rail and extends out of the sliding rail, the anti-overturning roller is located on the inner side of the sliding rail, and the anti-overturning roller is contacted with the bottom of the working table to prevent the working table from overturning or overturning in the exchange device.

10. The use method of the milling and boring machine with the exchange workbench based on any one of the claims 1 to 9 is characterized by comprising the following steps: