CN214720866U

CN214720866U - Vertical and horizontal dual-purpose single-end small milling machine

Info

Publication number: CN214720866U
Application number: CN202120867166.9U
Authority: CN
Inventors: 陈正仁; 黄勇; 陈望
Original assignee: Wuhan Qinshi Technology Co ltd
Current assignee: Wuhan Qinshi Technology Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-16
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a dual-purpose single-end small milling machine crouches immediately, including platform base, the adjusting module that crouches immediately, main shaft fixing base, quick-witted head module, main shaft fixing base and processing platform, processing platform installs on the platform base, the adjusting module that crouches immediately stands the seat and supports the slide including supporting, the support stands the seat and fixes on the platform base of processing platform side, support the slide and pass through bolt detachable and install on supporting standing the seat, the quick-witted head module is installed on the main shaft fixing base through vertical feeding device, the main shaft fixing base passes through horizontal feeding device and installs on support the slide. The utility model discloses low in manufacturing cost, the machining precision is than higher, has realized through a milling machine that the machine is dual-purpose immediately crouched, the processing cost of greatly reduced nonstandard spare work piece.

Description

Vertical and horizontal dual-purpose single-end small milling machine

Technical Field

The utility model belongs to the machining field relates to a machining milling machine, concretely relates to immediately crouch dual-purpose single-end little milling machine.

Background

The small-sized processing milling machine has great applicability to processing of working positions such as milling grooves, flat positions and the like of large-scale small-sized hardware parts. The existing small double-head milling machine generally adopts a horizontal sliding rail (a spindle is horizontally placed) to adopt vertical oil pressure feeding, so that the cost and the manufacturing cost are higher, and the machine adjusting operation is inconvenient and the flexibility of the processing range is not large. Some milling machines are arranged vertically, parts with certain characteristics can be machined both vertically and horizontally, when one part needs to be machined vertically or horizontally, the method in the prior art is to respectively machine the parts by using two milling machines, and the parts can be accepted by mass production or large-scale factories, but the cost is extremely high for machining non-standard parts of small factories. Therefore, if a vertical and horizontal milling machine is designed, two processing advantages of vertical and horizontal can be realized by one milling machine, and the processing cost can be greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dual-purpose single-end little milling machine crouches immediately, it is high to solve prior art well milling machine cost of manufacture, and the machining precision is not enough, and adaptability is narrow, can not follow both ends processing work piece scheduling problem simultaneously.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a vertical and horizontal dual-purpose single-end small milling machine which characterized in that: including platform base, the adjusting module that crouches immediately, main shaft fixing base, locomotive module, main shaft fixing base and processing platform, processing platform installs on the platform base, the adjusting module that crouches immediately is including supporting upright seat and support slide, support upright seat and fix on the platform base of processing platform side, support the slide and pass through bolt detachable and install on supporting upright seat, the locomotive module passes through vertical feeding device and installs on the main shaft fixing base, the main shaft fixing base passes through horizontal feeding device and installs on supporting the slide.

Further, horizontal feeding device includes first adjusting screw, locates the first forked tail slide rail on the support slide and locates the first forked tail spout on the main shaft fixing base, the main shaft fixing base is installed on the support slide through the cooperation slidable of first forked tail spout and first forked tail slide rail, first adjusting screw passes through first screw rod supporting seat and installs on the support slide, still is equipped with the screw with first adjusting screw thread fit installation on the main shaft fixing base, can drive the axial back and forth movement of main shaft fixing base along first adjusting screw through twisting first adjusting screw.

Further, the machine head module comprises a main shaft, a main shaft barrel and a driving motor, wherein the main shaft is installed in the main shaft barrel through a bearing, the upper end of the main shaft extends out of the main shaft barrel and is connected with the driving motor through a synchronous belt mechanism in a power transmission mode, the lower end of the main shaft is convenient for clamping a clamping part of a machining tool, a motor base of the driving motor is installed on the main shaft barrel through a connecting piece, and the main shaft barrel is installed on a main shaft fixing base through a vertical feeding device.

Furthermore, a sliding hole for the spindle barrel to slide up and down is formed in the spindle fixing seat, the vertical feeding device comprises a second screw and an adjusting nut, the second screw is mounted on the spindle barrel through a second screw supporting seat and is parallel to the axial direction of the spindle barrel, a through hole for the second screw to pass through is formed in the spindle fixing seat, the second screw is assembled in the through hole, an adjusting groove extending to the through hole is formed in the outer side wall of the spindle fixing seat, the adjusting nut is assembled on the second adjusting screw in the adjusting groove, a thrust surface is formed between the two sides of the adjusting nut and the end surfaces of the two sides of the adjusting groove, and the adjusting nut is screwed to adjust the relative position of the spindle fixing seat and the spindle barrel in the axial direction.

Further, the main shaft is a hollow shaft, a pull rod and a chuck are arranged in the main shaft from top to bottom, the pull rod and the chuck are connected through thread fit, a clamping hole used for clamping a cutter is formed in the lower end of the chuck, the lower end of the chuck is in an expanded conical shape, and the lower end of the main shaft is in an inner conical hole matched with the shape of the chuck.

Furthermore, a dustproof ring is arranged between the main shaft barrel and the top of the main shaft, and a compression ring locking nut are arranged between the main shaft barrel and the bottom of the main shaft.

Further, horizontal feeding device still includes horizontal locking device, horizontal locking device is including locating backing plate and a plurality of horizontal locking bolt that link to each other with the backing plate in the first forked tail spout, the screw assembly of horizontal locking bolt is in the lateral wall of first forked tail spout, locks the position of main shaft fixing base on first forked tail slide rail through twisting the contact force that horizontal locking bolt adjusting backing plate and first forked tail slide rail between.

Furthermore, the spindle fixing seat is provided with a vertical locking device, the vertical locking device comprises a clamping seam which is axially arranged on the spindle fixing seat along the sliding hole and a vertical locking bolt which is used for locking the clamping seam, and the clamping force of the spindle fixing seat on the spindle barrel can be increased by screwing the vertical locking bolt, so that the relative position of the spindle fixing seat and the spindle barrel in the vertical direction is locked.

Further, the processing platform is including processing base and work piece platform, processing base fixed mounting is in the middle of the platform base, the work piece platform passes through work piece feeding device and installs on the processing base, work piece feeding device includes the work piece and feeds the cylinder, locate the second forked tail slide rail on the processing base and locate the second forked tail spout of work piece platform bottom, the work piece feeds the cylinder and is fixed in the one end of processing base, and the work piece platform passes through the second forked tail spout and installs on the processing base with the cooperation of second forked tail slide rail, and the free flexible end of work piece feeding cylinder links to each other with the work piece platform.

Furthermore, a damper for limiting the moving speed of the workpiece is arranged at one end, far away from the workpiece feeding cylinder, of the processing base.

Furthermore, the damper is an oil pressure damper, when the workpiece is driven by the workpiece feeding device to be fed fast and touch the damper, the feeding speed of the workpiece is greatly reduced due to the damping effect of the damper, and the workpiece is machined at a stable speed.

The utility model has the advantages that:

the utility model discloses the dual-purpose single-end small milling machine low in manufacturing cost crouches immediately, and the machining precision is than higher, and easy operation transfers quick-witted convenience, and the process range is big, can adorn vertical milling cutter also can adorn gong piece cutter. The operation and debugging on the processing platform are convenient, the operation is simple and practical, and the tools such as vertical milling cutters, fly cutters and the like can be flexibly changed. But also the adjustable change of lathe processing scope is big, both can vertical mounting plate head module also can horizontal mounting plate head module, the height of machine head module and with the distance of processing platform in the horizontal plane all can adjust, the automatic unloader that goes up of mountable realizes automated production, accommodation is wide, especially to nonstandard piece processing, the utility model discloses the cost is less than traditional vertical or horizontal milling machine greatly.

Drawings

Fig. 1 is the overall structure schematic diagram of the vertical and horizontal dual-purpose single-head small milling machine of the utility model.

Fig. 2 is a schematic view showing the installation relationship between the head module and the vertical and horizontal adjusting module of the present invention.

Fig. 3 is a schematic view showing the installation relationship between the belt protective cover and the vertical and horizontal adjusting module of the novel head module of the present invention.

Fig. 4 is a schematic view of the front side of the spindle fixing seat of the present invention.

Fig. 5 is a rear schematic view of the spindle fixing seat of the present invention.

Fig. 6 is a schematic view of the spindle structure of the head module.

Fig. 7 is a schematic view of the processing platform of the present invention.

Fig. 8 is a schematic view of a base module of the present invention.

Reference numerals: 1-platform base, 2-vertical and horizontal adjusting module, 201-supporting vertical seat, 202-supporting sliding plate, 203, 204-bolt hole, 3-spindle fixing seat, 301-sliding hole, 302-clamping seam, 303-vertical locking bolt, 304-through hole, 305-adjusting groove, 306-thrust surface, 307-screw hole, 4-horizontal feeding device, 401-first adjusting screw, 402-first screw supporting seat, 403-adjusting hand wheel, 404-first dovetail slide rail, 405-first dovetail slide groove, 406-backing plate, 407-horizontal locking bolt, 5-vertical feeding device, 501-second screw, 502-adjusting nut, 6-machine head module, 601-spindle, 602-spindle barrel, 603-driving motor, 604-bearing, 605-synchronous belt, 606-synchronous wheel, 607-dustproof ring, 608-pull rod, 609-chuck, 610-chuck locking nut, 611-clamp ring, 612-clamp ring locking nut, 613-connecting piece A, 614-connecting piece B, 615-waist hole type sliding groove, 616-belt protective cover, 7-processing platform, 701-processing base, 702-workpiece platform, 703-workpiece feeding cylinder, 704-second dovetail slide rail, 705-second dovetail sliding groove, 706-damper, 707-cooling liquid nozzle, 708-lubricating oil hole, 709-limiting block, 8-control panel and 9-cutter.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 7, a vertical and horizontal dual-purpose single-head small milling machine comprises a platform base 1, a vertical and horizontal adjusting module 2, a head module 6, a spindle fixing seat 3 and a processing platform 7, wherein the processing platform 7 is installed on the platform base 1, the vertical and horizontal adjusting module 2 comprises a supporting vertical seat 201 and a supporting sliding plate 202, the supporting vertical seat 201 is fixedly installed on a machine frame, the supporting sliding plate 202 is detachably installed on the supporting vertical seat 201 through bolts, the head module 6 is installed on the spindle fixing seat 3 through a vertical feeding device 5, and the spindle fixing seat 3 is installed on the supporting sliding plate 202 through a horizontal feeding device 4. Can adjust the height of cutter 9 in vertical direction on the head module 6 through vertical feeding device 5, can adjust the distance of cutter 9 and processing platform 7 in the horizontal plane on the head module 6 through horizontal feeding device 4 to adapt to different processing work piece needs, the utility model discloses will replace the processing work piece to place on processing platform 7, select cutter 9 according to the processing needs, adjust the horizontal distance and the vertical height of cutter 9, drive the work piece through processing platform 7 and be close to head module 6, can process the work piece both ends simultaneously, improve machining efficiency greatly.

As a preferred embodiment, as shown in the figure, the lateral surface of the upper part of the supporting vertical seat 201 is provided with bolt holes in a square array, and the supporting sliding plate 202 is also provided with bolt holes in a square array, so that no matter whether the head module 6 is installed vertically or horizontally, after the supporting sliding plate 202 is rotated by 90 degrees, the corresponding bolt holes can be conveniently found on the supporting vertical seat 201, and the supporting vertical seat is fixedly installed through bolts.

As shown in fig. 1, 3 and 4, the horizontal feeding device 4 includes a first adjusting screw 401, a first dovetail slide rail 404 disposed on the support slide plate 202, and a first dovetail slide groove 405 disposed on the main shaft fixing seat 3, the main shaft fixing seat 3 is slidably mounted on the support slide plate 202 through the cooperation of the first dovetail slide groove 405 and the first dovetail slide rail 404, the first adjusting screw 401 is mounted on the support slide plate 202 through a first screw support seat 402, specifically, the first screw support seat 402 is fixed on the support slide plate 202, the first adjusting screw 401 is mounted on the first screw support seat 402 through a bearing 604 at an end close to an adjusting hand wheel 403, the first adjusting screw 401 can be driven to rotate freely through the adjusting hand wheel 403, the direction of the first adjusting screw 401 is the same as the sliding direction of the first dovetail slide groove 405, a screw hole 307 installed in threaded fit with the first adjusting screw 401 is further provided on the main shaft fixing seat 3, the first adjusting screw 401 and the screw hole 307 together form a screw nut mechanism, the spindle fixing base 3 can be driven to move back and forth along the axial direction of the first adjusting screw 401 by screwing the first adjusting screw 401, and an adjusting hand wheel 403 can be installed on the first adjusting screw 401 for facilitating screwing.

As shown in fig. 5, for the stability of the processing device, the horizontal feeding device 4 further comprises a horizontal locking device, the horizontal locking device comprises a base plate 406 arranged in the first dovetail sliding groove 405 and a plurality of horizontal locking bolts 407 connected with the base plate 406, the screw of the horizontal locking bolt 407 is assembled in the side wall of the first dovetail sliding groove 405, and the position of the spindle fixing base 3 on the first dovetail sliding rail 404 is locked by adjusting the contact force between the base plate 406 and the first dovetail sliding rail 404 by screwing the horizontal locking bolts 407. Although the screw nut mechanism used in the horizontal feed mechanism has a self-locking function, it is not sufficient for high-precision machining, and the horizontal feed device 4 adjusts the position of the head module 6 in the horizontal direction and then locks the head module by the horizontal locking device, thereby further improving the machining precision.

As shown in fig. 2 and 3, the head module 6 includes a main shaft 601, a main shaft cylinder 602 and a driving motor 603, the main shaft 601 is installed in the main shaft cylinder 602 through a bearing 604, the upper end of the main shaft 601 extends out of the main shaft cylinder 602 and is connected with the driving motor 603 through a timing belt 605 mechanism in a power transmission manner, the lower end of the main shaft 601 is convenient for clamping a clamping part of the processing tool 9, a motor base of the driving motor 603 is installed on the main shaft cylinder 602 through a connecting member, and the main shaft cylinder 602 is installed on the main shaft fixing base 3 through the vertical feeding device 5.

As shown in fig. 2, the spindle fixing base 3 is provided with a slide hole 301 for the spindle cylinder 602 to slide up and down, the vertical feeding device 5 comprises a second screw 501 and an adjusting nut 502, the second screw 501 is supported on the spindle cylinder 602 through the second screw 501, the second screw 501 is parallel to the axial direction of the main shaft barrel 602, a through hole 304 for the second screw 501 to pass through is arranged on the main shaft fixing seat 3, the second screw 501 is assembled in the through hole 304, the outer side wall of the spindle fixing base 3 is provided with an adjusting groove 305 extending to the through hole 304, the adjusting nut 502 is fitted on a second adjusting screw in the adjusting groove 305, thrust surfaces 306 are formed between both sides of the adjusting nut 502 and both side end surfaces of the adjusting groove 305, the second adjusting screw and the adjusting nut 502 together also constitute a screw-nut mechanism, the relative position of the spindle fixing base 3 and the spindle barrel 602 in the axial direction is adjusted by screwing the adjusting nut 502.

Although a screw nut mechanism adopted by the vertical feeding mechanism has a self-locking function, the high-precision machining is not enough, and therefore a vertical locking device is further arranged on the spindle fixing seat 3, as shown in fig. 3 and 4, the vertical locking device comprises a clamping seam 302 which is axially arranged on the spindle fixing seat 3 along a sliding hole 301 and a vertical locking bolt 303 which is used for locking the clamping seam 302, after the position of the machine head module 6 in the vertical direction is adjusted through the vertical feeding device 5, the clamping force of the spindle fixing seat 3 on the spindle barrel 602 can be increased by screwing the vertical locking bolt, so that the relative position of the spindle fixing seat 3 and the spindle barrel 602 in the vertical direction is locked, and the vertical locking device is used for locking, so that the machining precision is further improved.

The utility model discloses in main shaft 601 adopts current conventional structure, provides a specific embodiment below:

as shown in fig. 2, 3 and 6, the spindle 601 is a hollow shaft, a pull rod 608 and a chuck 609 are arranged in the spindle 601 from top to bottom, the pull rod 608 and the chuck 609 are connected in a threaded fit manner, that is, the lower end of the pull rod 608 is a thread, a threaded hole is formed in the middle of the chuck 609, a clamping hole for clamping the tool 9 is formed in the lower end of the chuck 609, the lower end of the chuck 609 is in an expanding cone shape, a clamping hole for clamping the tool 9 is formed in the middle of the chuck 609, an inner conical hole matched with the shape of the chuck 609 is formed in the lower end of the spindle 601, after the tool 9 is installed in the clamping hole, the pull rod 608 is screwed at the top, the pull rod 608 pulls the chuck 609 to move upwards, and the cone at the lower end of the chuck 609 squeezes the inner conical hole to clamp the tool 9.

In order to further improve the dust-proof capability of the spindle 601 and prevent debris from entering between the spindle 601 and the spindle barrel 602, a dust-proof ring 607 is arranged between the spindle barrel 602 and the top of the spindle 601, and a clamp ring 611 and a clamp ring lock nut 612 are arranged between the spindle barrel 602 and the bottom of the spindle 601. An oil throwing groove is turned on the periphery of the front end of the main shaft 601, cutting oil and scraps can be thrown off during machining, and the main shaft is protected from scraps.

As shown in fig. 3, the connecting member for mounting the driving motor 603 includes a connecting member a613 and a connecting member B614, the connecting member a613 is fixed on the main shaft tube 602, the connecting member a613 is provided with a waist-hole-shaped sliding groove 615, the connecting member B614 is mounted in the waist-hole-shaped sliding groove 615 through a bolt, the driving motor 603 is fixedly mounted on the connecting member B, the upper end of the main shaft 601 is provided with a synchronizing wheel 606, an output shaft of the driving motor 603 is also provided with a synchronizing wheel 606, the two synchronizing wheels 606 are connected through a synchronizing belt 605, and the tensioning degree of the synchronizing belt 605 is adjusted by adjusting the distance between the connecting member a and the connecting member B.

The connecting piece a613 is provided with a belt protecting cover 616 which wraps the synchronous belt 605, so that the chips and dust are prevented from entering between the synchronous belt 605 and the synchronous wheel 606, and the transmission efficiency is prevented from being affected.

As shown in fig. 7, the processing platform 7 includes a processing base 701 and a workpiece platform 702, the processing base 701 is fixedly installed in the middle of the top of the platform base 1, the workpiece platform 702 is installed on the processing base 701 through a workpiece feeding device, the workpiece feeding device includes a workpiece feeding cylinder 703, a second dovetail slide rail 704 installed on the processing base 701, and a second dovetail slide groove 705 installed at the bottom of the workpiece platform 702, the workpiece feeding cylinder 703 is fixed at one end of the processing base 701, the workpiece platform 702 is installed on the processing base 701 through the second dovetail slide groove 705 and the second dovetail slide rail 704 in a matching manner, a free telescopic end of the workpiece feeding cylinder 703 is connected with the workpiece platform 702, one end of the processing base 701 far from the workpiece feeding cylinder 703 is provided with a damper 706, which is used as a workpiece feeding speed regulator, when the workpiece is driven to be fed through the workpiece feeding cylinder 703, when the front end of the workpiece touches the damper 706, the feeding speed of the workpiece is slowed down under the action of the damper 706, so that the machining precision of the milling machine is improved, and the occurrence of a cutter breaking accident caused by too fast feeding in the machining process of the workpiece is prevented.

As a preferred embodiment, two position switches (not shown) are provided on the workpiece feeding cylinder 703 for detecting forward position and backward position of the workpiece feeding cylinder 703, and in this embodiment, the position switches may be magnetic switches.

As a preferred embodiment, the invention can also set up the stopper 709 used for limiting the movement limit of the workpiece platform 702 on the processing base 701, the front stopper 709 is installed in the chute and fastened by the bolt, different workpiece feeding maximum amounts can be adjusted by adjusting the position of the front end stopper, thereby playing the role of safety protection and preventing the workpiece from being over-fed.

A lubricating oil hole 708 is formed in a second dovetail slide rail 704 of the machining base 701, a lubricating oil pump 710 is arranged on the machine frame 1, the lubricating oil hole 708 is connected with an outlet of the lubricating oil pump through an internal pipeline, and lubricating oil is supplied to a space between the second dovetail slide rail 704 and a second dovetail sliding groove 705 through the lubricating oil pump.

One or more clamps are arranged on the workpiece platform 702 according to the requirement of the workpiece to be processed.

As a modified embodiment, the platform base 1 is further provided with a cooling liquid nozzle 707 aligned to the tool, and the cooling liquid is sprayed through the cooling liquid nozzle 707 to cool the machining tool.

When a workpiece is machined, the workpiece with machining is arranged on the workpiece platform 702 through a clamp, a corresponding cutter 9 is selected according to the type of machining required, the cutter 9 is arranged on a clamping head 609 at the lower end of the main shaft 601, and the pull rod 608 is screwed down to clamp the cutter 9. Then, the vertical feeding device 5 adjusts the height of the tool 9 to a proper height, the horizontal feeding device 4 adjusts the distance between the tool 9 and the workpiece, the driving motor 603 is started, the workpiece feeding cylinder 703 is started, the workpiece on the workpiece platform 702 is driven to feed to the tool 9, and the processing of the tool 9 on the workpiece is completed. The utility model discloses still be equipped with on platform base 1 and control panel 8, it is equipped with a plurality of operating button on the operating panel 8, for example driving motor 603 opens and stops the button, and opening of work piece feed cylinder 703 opens and stops the button, and the feed rate that the work piece fed cylinder 703 sets up the button and so on.

According to the condition that needs processing, as shown in fig. 8, support and be equipped with four bolt holes 203 that the square distributes on founding the seat 201, support slide 202 and correspond the position and also be equipped with four bolt holes 204, the utility model discloses can also dismantle support slide 202 from supporting founding the seat 201, install through the bolt behind the rotatory 90 degrees, like this the utility model discloses an original vertical feeding device becomes horizontal feeding device, and original horizontal feeding device becomes vertical feeding device, and cutter 9 becomes horizontal by vertical this moment for the work piece that processing needs to adopt horizontal method to process realizes standing the dual-purpose.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a vertical and horizontal dual-purpose single-end small milling machine which characterized in that: including platform base, the adjusting module that crouches immediately, main shaft fixing base, locomotive module, main shaft fixing base and processing platform, processing platform installs on the platform base, the adjusting module that crouches immediately is including supporting upright seat and support slide, support upright seat and fix on the platform base of processing platform side, support the slide and pass through bolt detachable and install on supporting upright seat, the locomotive module passes through vertical feeding device and installs on the main shaft fixing base, the main shaft fixing base passes through horizontal feeding device and installs on supporting the slide.

2. A vertical and horizontal dual-purpose single-head small milling machine according to claim 1, wherein: horizontal feeding device includes first adjusting screw, locates the first forked tail slide rail on the support slide and locates the first forked tail spout on the main shaft fixing base, the main shaft fixing base is installed on the support slide through the cooperation slidable of first forked tail spout and first forked tail slide rail, first adjusting screw passes through first screw rod supporting seat and installs on the support slide, still is equipped with the screw with first adjusting screw thread fit installation on the main shaft fixing base, can drive the axial back and forth movement of main shaft fixing base along first adjusting screw through twisting first adjusting screw.

3. A vertical and horizontal dual-purpose single-head small milling machine according to claim 1, wherein: the machine head module comprises a main shaft, a main shaft barrel and a driving motor, wherein the main shaft is installed in the main shaft barrel through a bearing, the upper end of the main shaft extends out of the main shaft barrel and is connected with the driving motor through a synchronous belt mechanism in a power transmission mode, the lower end of the main shaft is convenient for clamping a clamping part of a machining tool, a motor base of the driving motor is installed on the main shaft barrel through a connecting piece, and the main shaft barrel is installed on a main shaft fixing base through a vertical feeding device.

4. A vertical and horizontal dual-purpose single-head small milling machine according to claim 2, wherein: the vertical feeding device comprises a second screw and an adjusting nut, the second screw is mounted on the spindle barrel through a second screw supporting seat and is parallel to the spindle barrel in the axial direction, a through hole for the second screw to penetrate through is formed in the spindle fixing seat, an adjusting groove extending to the through hole is formed in the outer side wall of the spindle fixing seat, the adjusting nut is mounted on the second adjusting screw in the adjusting groove, a thrust surface is formed between the two sides of the adjusting nut and the end surfaces of the two sides of the adjusting groove, and the relative positions of the spindle fixing seat and the spindle barrel in the axial direction are adjusted by screwing the adjusting nut.

5. A vertical and horizontal dual-purpose single-head small milling machine according to claim 3, wherein: the main shaft is a hollow shaft, a pull rod and a chuck are arranged in the main shaft from top to bottom, the pull rod and the chuck are connected through thread matching, a clamping hole used for clamping a cutter is formed in the lower end of the chuck, the lower end of the chuck is in an expanded conical shape, and the lower end of the main shaft is an inner conical hole matched with the shape of the chuck.

6. A vertical and horizontal dual-purpose single-head small milling machine as claimed in claim 4, wherein: a dustproof ring is arranged between the main shaft barrel and the top of the main shaft, and a compression ring locking nut are arranged between the main shaft barrel and the bottom of the main shaft.

7. A vertical and horizontal dual-purpose single-head small milling machine according to claim 3, wherein: the horizontal feeding device further comprises a horizontal locking device, the horizontal locking device comprises a base plate arranged in the first dovetail sliding groove and a plurality of horizontal locking bolts connected with the base plate, the screw rod of each horizontal locking bolt is assembled in the side wall of the first dovetail sliding groove, and the position of the main shaft fixing seat on the first dovetail sliding rail is locked by screwing the horizontal locking bolt to adjust the contact force between the base plate and the first dovetail sliding rail.

8. A vertical and horizontal dual-purpose single-head small milling machine according to claim 3, wherein: the spindle fixing seat is provided with a vertical locking device, the vertical locking device comprises a clamping seam which is axially arranged on the spindle fixing seat along a sliding hole and a vertical locking bolt which is used for locking the clamping seam, and the clamping force of the spindle fixing seat on the spindle barrel can be increased by screwing the vertical locking bolt, so that the relative position of the spindle fixing seat and the spindle barrel in the vertical direction is locked.

9. A vertical and horizontal dual-purpose single-head small milling machine according to claim 8, wherein: the processing platform is including processing base and work piece platform, processing base fixed mounting is in the middle of the platform base, the work piece platform passes through work piece feeding device and installs on the processing base, work piece feeding device includes the work piece and feeds the cylinder, locate the second forked tail slide rail on the processing base and locate the second forked tail spout of work piece platform bottom, the work piece feeds the cylinder and is fixed in the one end of processing base, and the work piece platform passes through the second forked tail spout and the cooperation of second forked tail slide rail is installed on the processing base, and the free flexible end that the work piece fed the cylinder links to each other with the work piece platform.

10. A vertical and horizontal dual-purpose single-head small milling machine according to claim 9, wherein: and a damper for limiting the moving speed of the workpiece is arranged at one end of the processing base, which is far away from the workpiece feeding cylinder.