CN114850896A

CN114850896A - Workbench for milling

Info

Publication number: CN114850896A
Application number: CN202210801416.8A
Authority: CN
Inventors: 华君喜
Original assignee: Jiangsu Leiming Intelligent Equipment Co ltd
Current assignee: Jiangsu Leiming Intelligent Equipment Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-08-05
Anticipated expiration: 2042-07-08
Also published as: CN114850896B

Abstract

The invention discloses a workbench for milling, which belongs to the technical field of milling and comprises a fixed frame fixedly connected with a machine tool, wherein the fixed frame is provided with a bottom frame capable of moving back and forth, an arc-shaped frame penetrates through the inner part of the bottom frame, a supporting plate is fixedly arranged on the arc-shaped frame, the supporting plate can rotate around the arc center of the arc-shaped frame, a laser emitting device capable of emitting laser rays is arranged on a vertical rod, and the laser rays are superposed with the arc center line of the arc-shaped frame; a plurality of mounting groove has been seted up on the working panel, and the storage cavity has been seted up to the inside of mounting panel, and the storage cavity passes through mounting groove and outside air intercommunication. The invention has simple tool setting process and no risk of tool collision, greatly improves the tool setting efficiency, can directly drop the generated scrap iron in the material storage cavity from the mounting groove and uniformly discharge the scrap iron outwards, reduces more dead angles of the working panel relative to the working table of a common machine tool, reduces the cleaning difficulty and improves the working efficiency.

Description

Workbench for milling

Technical Field

The invention relates to a workbench for milling, and belongs to the technical field of milling.

Background

The milling machining is mechanical machining work for finishing workpiece forming through a milling machine or a machining center, the milling cutter and the surface of the workbench are mutually vertical, if an inclined plane arranged at an included angle with the surface of the workbench is difficult to machine, a specially-made clamp needs to be installed, the production cost is high, a large amount of time is wasted in the process of changing the model, the surface dead angle of the common workbench is large, after each time of machining, workers face large cleaning work, the occupied time is long, and the working efficiency is low.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a workbench for milling, which can finish inclined plane processing and is convenient to clean.

In order to achieve the purpose, the invention adopts the following technical scheme: a workbench for milling comprises a fixed frame fixedly connected with a machine tool, wherein an underframe capable of moving back and forth is mounted on the fixed frame, an arc-shaped frame penetrates through the inner part of the underframe, a supporting plate is fixedly mounted on the arc-shaped frame and can rotate around the arc center of the arc-shaped frame, a U-shaped frame capable of sliding along the length direction of the supporting plate is mounted on the supporting plate, and a mounting plate capable of sliding along the opening direction of the U-shaped frame is mounted inside the U-shaped frame;

the bottom frame is provided with a vertical rod, the vertical rod is provided with a laser emitting device capable of emitting laser rays, and the laser rays are superposed with the arc center line of the arc-shaped frame;

the upper surface of mounting panel is fixed with the work panel, a plurality of mounting groove has been seted up on the work panel, the storage cavity has been seted up to the inside of mounting panel, the storage cavity passes through mounting groove and outside air intercommunication, the internally mounted of storage cavity has waste discharge device.

Preferably, laser emitter sets up the top at the work panel, U type frame includes the bottom plate and fixes preceding curb plate and the posterior lateral plate in the bottom plate both sides, the spout has all been seted up at preceding curb plate and posterior lateral plate both ends, be fixed with the slider that corresponds with the spout on the mounting panel, the mounting panel passes through slider slidable mounting on the spout, one side of mounting panel is fixed with the pinion rack, the internal rotation of posterior lateral plate is installed and is had the gear one with pinion rack meshing, be fixed with on the posterior lateral plate and be used for driving gear one pivoted motor four.

Preferably, be equipped with the card strip on the mounting panel, a plurality of the inside at the work panel is seted up along the length direction of work panel to the mounting groove, the mounting groove is kept away from the one end of card strip and is run through the terminal surface of work panel, a plurality of baffles have evenly been arranged at the end of the chamber of storage cavity, and a plurality of storage compartments are separated into with the end of the chamber of storage cavity to a plurality of baffles, and the inside of every storage compartment all rotates along the length direction of storage compartment and installs the worm, the bottom one end of storage cavity is equipped with the discharge gate, and a plurality of storage compartments all communicate through discharge gate and outside.

Preferably, two equal fixed mounting in inboard of arc frame has the arc rack, the inside rotation of chassis installs the drive shaft, gear three is all installed at the both ends of drive shaft, gear three is connected with the arc rack meshing, the both sides of drive shaft all are equipped with the locking device who is used for locking the arc frame.

Preferably, the locking device comprises a hydraulic pipe fixedly installed inside the chassis, an inner shaft is rotatably installed at the center inside the hydraulic pipe, two ends of the inner shaft are fixedly installed with a second gear, the second gear is meshed with the arc rack, an inner braking plate is installed on the surface of the inner shaft, a plurality of outer braking plates are installed inside the chassis, and when the inner braking plate and the outer braking plates are tightly attached, the inner shaft is in a braking state.

Preferably, it is a plurality of connect through the elastomer between the outer braking board, it is a plurality of connect through the elastomer between the interior braking board, the shape of hydraulic pressure pipe is the annular, and the hole has been seted up to the inside of hydraulic pressure pipe, the bearing is installed to the junction between hole and the interior axle, set up the oil storage chamber in the inside intermediate layer of hydraulic pressure pipe, the equal slidable mounting in both ends of oil storage chamber has the piston ring, be fixed with compression ring on the piston ring, the one end that compression ring kept away from the piston ring runs through the tip that the oil storage chamber extends to the outside and with outer braking board swing joint, the hydraulic pressure pipe passes through oil pipe and the outside oil supply unit intercommunication of outside chassis.

Preferably, the slider is all installed to the bottom of bottom plate and chassis, the spout has all been seted up on the surface of backup pad and mount, bottom plate and chassis are respectively through slider slidable mounting on backup pad and mount, the inside of backup pad is equipped with the threaded rod one of arranging along backup pad length direction, threaded rod one runs through the slider of bottom plate bottom and is connected with this slider meshing, install in the backup pad and be used for driving backup pad internal thread pole one pivoted motor two, the inside of mount is equipped with the threaded rod two of arranging along mount length direction, threaded rod two runs through the slider of chassis bottom and is connected with this slider meshing, fixed mounting has on the mount and is used for driving mount internal thread pole two pivoted motor three.

Preferably, the front side plate is provided with a yielding groove arranged along the length direction of the front side plate.

Compared with the prior art, the device can fix the workpiece on the surface of the working panel, and the upper surface of the workpiece is coincided with the laser ray by adjusting the height of the working panel on the U-shaped frame, so that the tool setting work is completed, the tool setting process of the device is simple, the risk of tool collision is avoided, the tool setting efficiency is greatly improved, if an inclined surface is milled or an inclined hole is machined in the machining process, the angle is easy to adjust, the positioning is more convenient in the inclined hole machining process, only the U-shaped frame needs to slide on the surface of the supporting plate, the moving distance can be achieved by measuring the distance between two machining points on the surface of the workpiece, and compared with the inclined surface and inclined hole machining of a common machine tool, a large amount of measuring and calculating time can be saved.

According to the invention, the material storage cavity is formed in the mounting plate, so that scrap iron generated by processing can directly fall into the material storage cavity from the mounting groove and be uniformly discharged outwards.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the inclined working surface plate of the present invention.

Fig. 3 is a schematic view of the internal structure of the rear side plate of the present invention.

FIG. 4 is a schematic view of the internal structure of the material storage chamber of the present invention.

Fig. 5 is an internal cross-sectional view of the mounting plate of the present invention.

Fig. 6 is a schematic view of the hidden internal structure of the chassis according to the present invention.

Fig. 7 is an internal cross-sectional view of the chassis of the present invention.

Fig. 8 is a cross-sectional view taken at a-a of fig. 7 in accordance with the present invention.

Fig. 9 is an enlarged view of the invention at B in fig. 7.

Fig. 10 is an enlarged view of a portion of fig. 7 according to the present invention.

In the figure: 1. the device comprises a fixed frame, 2, an underframe, 3, a supporting plate, 4, a front side plate, 5, a mounting plate, 51, a clamping strip, 6, a relief groove, 7, a working panel, 8, a first motor, 9, a second motor, 10, a vertical rod, 11, an arc-shaped frame, 12, a third motor, 13, a milling cutter, 14, a rear side plate, 15, a fourth motor, 16, a first gear, 17, a toothed plate, 18, a worm, 19, a partition plate, 20, a discharge port, 21, a storage cavity, 22, an arc rack, 23, a second gear, 24, a third gear, 25, an outer brake plate, 26, a hydraulic pipe, 27, an inner brake plate, 28, a compression ring, 29, a piston ring, 30, a bearing, 31, an inner shaft, 32, an oil pipe, 33, an oil storage chamber, 34, an elastic body, 35, a bottom plate, 36, a laser emitting device, 37 and a driving shaft.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.

Examples

As shown in fig. 1-10, in this embodiment, a milling workbench is provided, which includes a fixing frame 1 for being fixedly connected to a machine tool, a base frame 2 capable of moving back and forth is installed on the fixing frame 1, a slider is installed at the bottom of the base frame 2, a sliding groove is formed in the surface of the fixing frame 1, the base frame 2 is slidably installed on the fixing frame 1 through the slider, a second threaded rod arranged along the length direction of the fixing frame 1 is installed inside the fixing frame 1, the second threaded rod penetrates through the slider at the bottom of the base frame 2 and is engaged with the slider, a third motor 12 for driving the second threaded rod inside the fixing frame 1 to rotate is fixedly installed on the fixing frame 1, the third threaded rod drives the second threaded rod to rotate, the second threaded rod drives the slider engaged with the second threaded rod to move so as to drive the base frame 2 to slide back and forth, and the connection between the second threaded rod and the slider is a device commonly used in mechanical devices, the invention is not a innovation point of the invention, so the invention is not specifically illustrated and is not shown in the figures, with reference to fig. 2 and fig. 6, a U-shaped frame capable of sliding along the length direction of a support plate 3 is installed on the support plate 3, an installation plate 5 capable of sliding along the opening direction of the U-shaped frame is installed inside the U-shaped frame, the U-shaped frame comprises a bottom plate 35, a front side plate 4 and a rear side plate 14 which are fixed on two sides of the bottom plate 35, a sliding block is installed at the bottom of the bottom plate 35, a sliding groove is formed on the surface of the support plate 3, the bottom plate 35 is installed on the support plate 3 in a sliding manner through the sliding block, a first threaded rod arranged along the length direction of the support plate 3 is installed inside the support plate 3, the first threaded rod penetrates through the sliding block at the bottom of the bottom plate 35 and is engaged with the sliding block, a second motor 9 for driving the first threaded rod inside the support plate 3 to rotate is installed on the support plate 3, the second motor 9 drives the first threaded rod to rotate, the first threaded rod drives the sliding block meshed with the first threaded rod to move so as to drive the bottom frame 2 to slide back and forth, and the connection of the first threaded rod and the sliding block is the prior art, so that the invention is not specifically illustrated, and is not shown in the figure.

With reference to fig. 1 to 3, the vertical rod 10 is mounted on the bottom frame 2, the vertical rod 10 is mounted with a laser emitting device 36 capable of emitting laser beams, the laser beams capable of emitting visible light are common components in life, so the present invention is not specifically described, the laser beams and the arc center lines of the arc frames 11 are mutually overlapped, the vertical rod 10 is mounted on the bottom frame 2, the bottom frame 2 always moves along the extending direction of the laser beams in the moving process, so the laser beams do not change position and angle along with the movement of other components, and further the arc center lines of the arc frames 11 can be always overlapped, the laser emitting device 36 is arranged above the working panel 7, when the workpiece is mounted on the working panel 7, the upper surface of the workpiece can be overlapped with the laser beams by adjusting the position of the mounting plate 5, the front side plate 4 is provided with the abdicating groove 6 arranged along the length direction of the front side plate 4, the groove of stepping down 6 can realize supplying the laser ray to pass, and the laser ray runs through the groove of stepping down 6 and penetrates on posterior lateral plate 14, more convenient location work, the spout has all been seted up at preceding curb plate 4 and 14 both ends of posterior lateral plate, be fixed with the slider that corresponds with the spout on mounting panel 5, mounting panel 5 passes through slider slidable mounting on the spout, one side of mounting panel 5 is fixed with pinion rack 17, the internal rotation of posterior lateral plate 14 is installed with the gear 16 with pinion rack 17 meshing, be fixed with on the posterior lateral plate 14 and be used for driving 16 pivoted motors four 15 of gear, motor four 15 drive 16 pivoted in-process of gear, and accessible gear 16 drives pinion rack 17 and reciprocates, and

pinion rack

17 and 5 fixed connection of mounting panel, and then drive mounting panel 5 and reciprocate.

With reference to fig. 4 and 5, a working panel 7 is fixed on the upper surface of the mounting plate 5, a plurality of mounting grooves are formed in the working panel 7, the mounting grooves are T-shaped grooves to facilitate fixing of workpieces, a material storage chamber 21 is formed in the mounting plate 5, the material storage chamber 21 is communicated with the outside air through the mounting grooves, waste scrap iron generated during the machining process of the workpieces can fall into the material storage chamber 21 through the mounting grooves, a waste material discharge device is mounted in the material storage chamber 21, a clamping strip 51 is arranged on the mounting plate 5, the mounting grooves are formed in the working panel 7 along the length direction of the working panel 7, one end of each clamping strip 51, away from the mounting groove, penetrates through the end surface of the working panel 7, one end of a screw for fixing the workpieces can be inserted into the mounting groove from one end of the working panel 7 and tightly press the workpieces through nut fixing, the bottom of the storage cavity 21 is uniformly provided with a plurality of partition plates 19, the bottom of the storage cavity 21 is divided into a plurality of storage chambers by the partition plates 19, the number of the partition plates can be 10, if the number of the partition plates is 10, the number of the storage chambers is 11, the interior of each storage chamber is rotatably provided with a worm 18 along the length direction of the storage chamber, one end of the bottom of the storage cavity 21 is provided with a discharge hole 20, when discharging is needed, only the mounting plate 5 needs to be moved, the discharge hole 20 is arranged on the outer side of the support plate 3, the 11 storage chambers are communicated with the outside through the discharge holes 20, the worm 18 can be driven to rotate through a motor I8, gears can be arranged at the end parts of the plurality of worms 18 in a driving mode, the plurality of gears are mutually meshed, the motor I8 drives one gear to rotate, the simultaneous driving of the plurality of gears to rotate can be completed, and the plurality of worms 18 can rotate simultaneously, since the driving method is a common driving mechanism in machining, the present invention is not specifically described and is not shown in the drawings.

With reference to fig. 6 to 10, an arc frame 11 penetrates through the inside of the bottom frame 2, a support plate 3 is fixedly mounted on the arc frame 11, the support plate 3 can rotate around the arc center of the arc frame 11, a track for the arc frame 11 to move is arranged inside the bottom frame 2, the support plate 3 can slide along the arc surface of the arc frame 11 along with the arc frame 11, or can be understood as the support plate 3 rotates around the arc center of the arc frame 11, arc racks 22 are fixedly mounted on the inner sides of the two arc frames 11, a drive shaft 37 is rotatably mounted inside the bottom frame 2, gears three 24 are mounted at the two ends of the drive shaft 37, the gears three 24 are meshed with the arc racks 22, a motor five rotating with the drive shaft 37 is mounted outside the bottom frame 2, locking devices for locking the arc frame 11 are arranged on the two sides of the drive shaft 37, each locking device includes a hydraulic pipe 26 fixedly mounted inside the bottom frame 2, an inner shaft 31 is rotatably installed at the inner center of the hydraulic pipe 26, two ends of the inner shaft 31 are fixedly installed with a second gear 23, the second gear 23 is meshed with the arc rack 22, so that when the second gear 23 is fixed, the arc rack 22 cannot rotate, a plurality of inner brake plates 27 are installed on the surface of the inner shaft 31, a plurality of outer brake plates 25 are installed inside the chassis 2, the number of the inner brake plates 27 and the number of the outer brake plates 25 can be 20, the outer brake plates 25 can only slide inside the chassis 2 and cannot rotate, when the inner brake plates 27 and the outer brake plates 25 are tightly attached, the inner shaft 31 is in a braking state, the outer brake plates 25 are connected through an elastic body 34, the inner brake plates 27 are connected through the elastic body 34, and under the action of the elastic body 34, the inner brake plates 27 and the outer brake plates 25 do not contact with each other, the hydraulic pipe 26 is annular, an inner hole is formed in the hydraulic pipe 26, a bearing 30 is arranged at the joint between the inner hole and the inner shaft 31, the inner hole in the hydraulic pipe 26 is used for supporting the inner shaft 31 to ensure that the inner shaft 31 can rotate in the inner hole, an oil storage chamber 33 is arranged in the interlayer inside the hydraulic pipe 26, piston rings 29 are arranged at both ends inside the oil storage chamber 33 in a sliding manner, a compression ring 28 is fixed on the piston ring 29, one end of the compression ring 28, which is far away from the piston ring 29, extends to the outside through the end part of an oil storage chamber 33 and is movably connected with the outer brake plate 25, the hydraulic pipe 26 is communicated with an oil supply device outside the outer chassis 2 through an oil pipe 32, when hydraulic oil is injected through the oil pipe 32 toward the inside of the oil reservoir 33, the pistons on both sides push the compression ring 28 to slide toward both sides, and the outer brake plate 25 and the inner brake plate 27 are compressed to complete the braking operation.

The working principle is as follows: this device need carry out the tool setting in advance before using, the tool setting in-process only need in advance with milling cutter 13 the knife tip aim at laser ray can, because chassis 2 only can slide around on mount 1, the relative position of laser ray and cutter can not be changed in the removal of chassis 2, and then realized need not many times the tool setting, when changing the work piece later, only need with the work piece with the laser ray aim at can.

The alignment mode of the laser ray and the workpiece is as follows: the workpiece to be processed is placed on the upper surface of the working panel 7, a fixing screw is clamped into the mounting groove from one end of the working panel 7, then the workpiece is tightly pressed through a nut, after fixing is completed, firstly, the mounting plate 5 is horizontally arranged, an operator only needs to make the upper surface of the workpiece just contact with a laser ray in the moving process of the mounting plate 5 by rotating the motor four 15, the motor four 15 drives the gear one 16 to rotate, the gear one 16 drives the mounting plate 5 to move up and down through the toothed plate 17 in the rotating process, the operator only needs to make the upper surface of the workpiece just contact with the laser ray, the tool setting mode can avoid that the surface of the workpiece is confirmed by cutting the tool nose on the surface of the workpiece in the tool setting process, when an inclined plane needs to be processed, the driving shaft 37 is driven to rotate through the motor five, the gear three 24 at the two ends of the driving shaft 37 can drive the supporting plate 3 to rotate around the arc center of the arc frame 11, and the arc center of the arc frame 11 is superposed with the laser ray, therefore, when the workpiece is inclined, the specific position of the tool setting return to zero cannot be changed, the milling and drilling processes are both convenient, if the milling or drilling of inclined holes is carried out at other positions on the surface of the workpiece, the distance between the position of the workpiece surface to be drilled and the laser ray is measured, the second motor 9 is started, and the front side plate 4 is driven to move on the support plate 3 to measure the distance, so that the return to zero point can be determined on the surface of the workpiece.

Milling the in-process, can producing more iron fillings, processing at every turn accomplishes the back, all need blow iron fillings to the lathe inside, because can having seted up the fixed slot on the ordinary workstation, iron fillings can block the difficult clearance in the inside of fixed slot, and this workstation iron fillings can directly get into storage cavity 21, are outwards unified by the discharge gate 20 of storage cavity 21 bottom again and carry, and is more convenient for ordinary workstation clearance, has saved workman's operating time, has improved work efficiency.

Finally, it should be noted that the above embodiments are only used for illustrating and not limiting the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the present invention without departing from the spirit and scope of the present invention, and all modifications or partial substitutions should be covered by the scope of the claims of the present invention.

Claims

1. The workbench for milling is characterized by comprising a fixed frame (1) fixedly connected with a machine tool, wherein the fixed frame (1) is provided with a base frame (2) capable of moving back and forth, an arc frame (11) penetrates through the inner part of the base frame (2), a supporting plate (3) is fixedly arranged on the arc frame (11), the supporting plate (3) can rotate around the arc center of the arc frame (11), a U-shaped frame capable of sliding along the length direction of the supporting plate (3) is arranged on the supporting plate (3), and a mounting plate (5) capable of sliding up and down along the opening direction of the U-shaped frame is arranged in the U-shaped frame;

the bottom frame (2) is provided with a vertical rod (10), the vertical rod (10) is provided with a laser emitting device (36) capable of emitting laser rays, and the laser rays are superposed with the arc center line of the arc-shaped frame (11);

the upper surface of mounting panel (5) is fixed with work panel (7), a plurality of mounting groove has been seted up on work panel (7), storage cavity (21) have been seted up to the inside of mounting panel (5), storage cavity (21) communicate through mounting groove and outside air, the internally mounted of storage cavity (21) has waste discharge device.

2. The workbench for milling according to claim 1, wherein the laser emitting device (36) is arranged above the working panel (7), the U-shaped frame comprises a bottom plate (35) and a front side plate (4) and a rear side plate (14) which are fixed on two sides of the bottom plate (35), sliding grooves are formed in two ends of the front side plate (4) and the rear side plate (14), sliding blocks corresponding to the sliding grooves are fixed on the mounting plate (5), the mounting plate (5) is slidably mounted on the corresponding sliding grooves through the sliding blocks, a toothed plate (17) is fixed on one side of the mounting plate (5), a first gear (16) meshed with the toothed plate (17) is rotatably mounted inside the rear side plate (14), and a fourth motor (15) used for driving the first gear (16) to rotate is fixed on the rear side plate (14).

3. The workbench for milling according to claim 1, wherein a clamping strip (51) is arranged on the mounting plate (5), the mounting groove is arranged inside the working panel (7) along the length direction of the working panel (7), one end of the mounting groove, which is far away from the clamping strip (51), penetrates through the end surface of the working panel (7), a plurality of partition plates (19) are uniformly arranged at the bottom of the storage cavity (21), the bottom of the storage cavity (21) is divided into a plurality of storage chambers by the partition plates (19), a worm (18) is rotatably arranged inside each storage chamber along the length direction of the storage chamber, a discharge port (20) is arranged at one end of the bottom of the storage cavity (21), and the storage chambers are communicated with the outside through the discharge port (20).

4. The workbench for milling according to claim 1, wherein arc racks (22) are fixedly mounted on the inner sides of the two arc-shaped frames (11), a driving shaft (37) is rotatably mounted in the bottom frame (2), three gears (24) are mounted at two ends of the driving shaft (37), the three gears (24) are meshed with the arc racks (22), and locking devices for locking the arc-shaped frames (11) are arranged on two sides of the driving shaft (37).

5. A milling workbench according to claim 4, wherein the locking device comprises a hydraulic pipe (26) fixedly arranged inside the underframe (2), an inner shaft (31) is rotatably arranged at the center of the inside of the hydraulic pipe (26), two gears (23) are fixedly arranged at both ends of the inner shaft (31), the gears (23) are meshed with the arc rack (22), an inner braking plate (27) is arranged on the surface of the inner shaft (31), a plurality of outer braking plates (25) are arranged inside the underframe (2), and when the inner braking plate (27) and the outer braking plates (25) are tightly attached, the inner shaft (31) is in a braking state.

6. A milling machining station according to claim 5, characterized in that a plurality of the outer brake plates (25) are connected to each other by an elastic body (34), a plurality of the inner brake plates (27) are connected to each other by an elastic body (34), the hydraulic pipe (26) is annular, an inner hole is formed inside the hydraulic pipe (26), a bearing (30) is arranged at the joint between the inner hole and the inner shaft (31), an oil storage chamber (33) is arranged in the interlayer inside the hydraulic pipe (26), piston rings (29) are arranged at two ends of the inner part of the oil storage chamber (33) in a sliding way, a compression ring (28) is fixed on the piston ring (29), one end of the compression ring (28) far away from the piston ring (29) penetrates through the end part of the oil storage chamber (33) to extend to the outside and is movably connected with the outer brake plate (25), the hydraulic pipe (26) is communicated with an oil supply device outside the external chassis (2) through an oil pipe (32).

7. The milling workbench according to claim 2, wherein sliding blocks are mounted at the bottoms of the bottom plate (35) and the bottom frame (2), sliding grooves are formed in the surfaces of the supporting plate (3) and the fixing frame (1), the bottom plate (35) and the bottom frame (2) are respectively mounted on the supporting plate (3) and the fixing frame (1) through the sliding blocks in a sliding manner, a first threaded rod arranged along the length direction of the supporting plate (3) is arranged inside the supporting plate (3), the first threaded rod penetrates through the sliding block at the bottom of the bottom plate (35) and is meshed with the sliding block, a second motor (9) for driving the first threaded rod inside the supporting plate (3) to rotate is mounted on the supporting plate (3), a second threaded rod arranged along the length direction of the fixing frame (1) is arranged inside the fixing frame (1), and penetrates through the sliding block at the bottom of the bottom frame (2) and is meshed with the sliding block, and a motor III (12) for driving a threaded rod II in the fixing frame (1) to rotate is fixedly mounted on the fixing frame (1).

8. The workbench for milling according to claim 2, wherein the front side plate (4) is provided with an abdicating groove (6) arranged along the length direction of the front side plate (4).