CN210160789U

CN210160789U - Gantry numerical control milling machine

Info

Publication number: CN210160789U
Application number: CN201920988393.XU
Authority: CN
Inventors: 张成雄
Original assignee: Wenzhou Chengxiong Technology Co Ltd
Current assignee: Wenzhou Chengxiong Technology Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-20
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to the technical field of milling machines, a gantry numerical control milling machine is disclosed, the key points of the technical scheme are that the gantry numerical control milling machine comprises a milling machine body, the milling machine body comprises a shell and a main shaft connected with a milling cutter, the milling cutter comprises a cutter head and a cutter handle arranged on the main shaft, one side of the cutter head close to the cutter handle is provided with an installation rod, the cutter handle is provided with a mounting groove for the installation rod to extend into, the inner wall of the mounting groove is symmetrically provided with two moving holes extending along the vertical direction, the mounting rod is provided with a fixing hole, a fixing bolt passing through the two moving holes simultaneously penetrates through the fixing hole; the installation rod is fixedly provided with a lifting block penetrating through one of the moving holes, the shell is provided with a lifting cylinder, a piston rod of the lifting cylinder is connected with a moving block, and the moving block and the lifting block are detachably connected through a positioning piece. The utility model discloses have easy and simple to handle, effect that work efficiency is high.

Description

Gantry numerical control milling machine

Technical Field

The utility model relates to a milling machine's technical field, more specifically say that it relates to a planer-type numerically controlled fraise machine.

Background

The milling machine mainly refers to a machine tool for machining various surfaces of a workpiece by using a milling cutter, and generally, the milling cutter mainly moves by rotating, the movement of the workpiece and the milling cutter is feeding, and planes, grooves, various curved surfaces, gears and the like can be machined. In the machining process of the milling machine, the positioning of the workpiece is directly related to the precision and the quality of the machined part.

The traditional gantry numerical control milling machine generally comprises a gantry, a machining table and a clamp arranged on the machining table and used for clamping a workpiece, wherein a milling assembly is connected onto the gantry, the milling assembly comprises a main shaft positioned above the clamp, a milling cutter is mounted on the main shaft, and the size of the workpiece to be machined depends on the distance between the milling cutter and the clamp.

Many enterprises can select a proper milling machine according to the size of a processed product during production, but the size of the existing numerical control milling machine is only a plurality of gears, and the difference of the numerical control milling machine between two adjacent gears is large. And the length of milling cutter itself and the distance that the main shaft can move are limited, and when the thickness of work piece is less than the minimum interval of milling cutter and anchor clamps, the lower extreme of milling cutter is difficult to reach the work piece, needs to ask professional to carry out dismouting again with the milling machine so that the position of main shaft is adjusted down this moment, complex operation, work efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a planer-type numerically controlled fraise machine, the length of people's accessible regulation milling cutter self has effect easy and simple to handle, that work efficiency is high with the work piece that machining thickness is little.

In order to achieve the above purpose, the utility model provides a following technical scheme: a gantry numerical control milling machine comprises a milling machine body, wherein the milling machine body comprises a shell and a main shaft, one end of the main shaft extends out of the shell, a milling cutter is connected onto the main shaft, the milling cutter comprises a cutter head and a cutter handle arranged on the main shaft, an installation rod is arranged on one side, close to the cutter handle, of the cutter head, an installation groove for the installation rod to extend into is formed in the cutter handle, two moving holes extending in the vertical direction are symmetrically formed in the inner wall of the installation groove, a fixing hole is formed in the installation rod, a fixing bolt simultaneously penetrating through the two moving holes penetrates through the fixing hole, and a fixing nut is connected onto the fixing; the mounting rod is fixedly provided with a lifting block penetrating through one of the moving holes, the shell is provided with a lifting cylinder, a piston rod of the lifting cylinder is arranged towards the lifting block and is connected with a moving block, and the moving block and the lifting block are detachably connected through a positioning piece.

By adopting the technical scheme, when a workpiece with small thickness is processed, the moving block is driven to move towards the lifting block through the lifting cylinder, and then the moving block and the lifting block are connected through the positioning piece. Then unscrew fixation nut so that the installation pole can follow the mounting groove and remove, rethread lift cylinder promotes the elevator and moves down for installation pole and tool bit move down until the tool bit can contradict with the work piece. People's accessible changes the length that the installation pole stretches out the mounting groove for the height of tool bit changes, need not the professional and relapse dismouting milling machine when the work piece of processing thickness difference, convenient operation, work efficiency height. After the milling cutter is adjusted in place, the fixing nut is screwed down to enable the fixing nut and the head of the fixing bolt to clamp the mounting rod together, so that the cutter head is limited to move relative to the cutter handle, the moving block and the lifting block are disassembled, and the moving block is prevented from influencing the rotation of the milling cutter.

The utility model discloses further set up to: the movable block is characterized in that one side, facing the movable block, of the lifting block is provided with a fixing groove, the side face of the fixing groove is provided with a sliding groove, the positioning piece comprises a positioning block which is slidably arranged in the sliding groove, and one side, close to the positioning block, of the movable block is provided with a positioning groove for the positioning block to stretch into.

Through adopting above-mentioned technical scheme, when connecting elevator and movable block, earlier make the elevator move to the movable block under through rotating milling cutter, rethread lift cylinder makes the elevator stretch into in the fixed slot, then moves the locating piece into in the constant head tank. When the piston rod of the lifting cylinder drives the moving block to move, the positioning block is limited by the side wall of the positioning groove to move along with the piston rod, so that the tool bit and the moving block move synchronously. When the lifting block and the moving block are separated, the positioning block only needs to be moved out of the positioning groove, and the lifting block and the moving block are convenient and fast to use.

The utility model discloses further set up to: the inner wall of the sliding groove is connected with a positioning spring, the other end of the positioning spring is fixedly connected with a positioning block, and one end of the positioning block extends out of the sliding groove under the action of the positioning spring.

Through adopting above-mentioned technical scheme, when locating piece and constant head tank align, positioning spring can order about the locating piece and stretch into in the constant head tank to make the locating piece be difficult for shifting out the constant head tank when moving along with the movable block, improved the stability of locating piece.

The utility model discloses further set up to: the inner wall of constant head tank has inlayed first location magnet, be equipped with on the locating piece with first location magnet complex second location magnet.

By adopting the technical scheme, when the positioning block extends into the positioning groove, the first positioning magnet and the second positioning magnet attract each other, and the positioning block is further limited to move out of the positioning groove.

The utility model discloses further set up to: the inner wall of the sliding groove is provided with a pushing hole in the same extending direction as the sliding groove, a pushing block fixedly connected with the positioning block is arranged in the pushing hole in a sliding mode, a fastening block is arranged on the pushing block, and the fastening block is connected with the lifting block through a fastening bolt.

By adopting the technical scheme, people can move the push block along the push hole by hand, so that the positioning block can be moved into or out of the positioning groove. When the milling cutter rotates, the fastening block and the lifting block are connected through the fastening bolt, and the push block, the positioning block and the lifting block are prevented from rotating relatively when the milling cutter rotates.

The utility model discloses further set up to: a polished rod is integrally formed on one side, away from the head, of the fixing bolt, a limiting ring is arranged on the side wall of the polished rod, and the limiting ring is a rubber ring.

Through adopting above-mentioned technical scheme, when fixation nut is not hard up, the spacing ring plays the effect that hinders fixation nut and shift out the polished rod, avoids fixation nut to be thrown away and injure other people by mistake when rotating. The limiting ring is made of rubber materials, so that the limiting ring has elastic deformation capacity, and the fixing nut cannot be influenced to move into or out of the polish rod.

The utility model discloses further set up to: the connecting parts of the two opposite end faces of the limiting ring and the end faces thereof far away from the polished rod are provided with guide faces, and the two guide faces are inclined planes with opposite inclination directions.

Through adopting above-mentioned technical scheme, the effect of direction is played when fixation nut passes through the spacing ring to the spigot surface, makes things convenient for fixation nut's removal.

The utility model discloses further set up to: the section of the knife handle is square.

Through adopting above-mentioned technical scheme, the cross-section of handle of a knife is square rather than circular, has increased the area of contact of fixing bolt's head and handle of a knife to improve the stability of installation pole and tool bit, avoided tool bit and handle of a knife relative movement.

The utility model discloses further set up to: the tool holder and the main shaft are connected through at least two mounting bolts.

By adopting the technical scheme, the tool shank and the main shaft can be detached, and the tool shank and the main shaft can be detached and replaced after the tool bit is seriously abraded.

To sum up, the utility model discloses following beneficial effect has:

1. when a workpiece with small thickness is machined, the lifting block is firstly rotated to be right below the moving block, the moving block is driven by the lifting cylinder to extend into the fixed groove, then the positioning block is embedded into the positioning groove by manually moving the pushing block, then the moving block is driven by the lifting cylinder to move downwards, and further the positioning block, the mounting rod and the tool bit move downwards until the tool bit can be abutted against the workpiece, people can machine the workpieces with different thicknesses by changing the length of the milling cutter, and compared with a mode of repeatedly disassembling and assembling the milling machine to adjust the length of the main shaft, the milling cutter is more convenient and rapid and has high;

2. the positioning spring can drive one end of the positioning block to extend out of the sliding groove, so that the positioning block is not easy to separate from the positioning groove when moving along with the moving block; the first positioning magnet and the second positioning magnet attract each other to play a role in fixing the positioning block, so that the stability of the positioning block is further improved;

3. the limiting ring can prevent the fixing nut from being thrown out of the polish rod when the fixing nut is loosened, so that the fixing nut is prevented from accidentally injuring others; the guide surface plays a role in guiding and facilitates the movement of the fixing nut.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a partial schematic view highlighting the milling cutter of the present embodiment;

FIG. 3 is a partial schematic view of the present embodiment with the mounting bar and mounting groove separated;

fig. 4 is a partial sectional view of the elevator block in this embodiment.

Reference numerals: 1. a milling machine body; 2. a frame; 3. a housing; 4. a main shaft; 5. milling cutters; 6. a cutter head; 7. a knife handle; 8. a fastening block; 9. mounting grooves; 10. mounting a rod; 11. a fixing hole; 12. moving the hole; 13. fixing the bolt; 14. fixing a nut; 15. a polish rod; 16. a limiting ring; 17. a guide surface; 18. a lifting block; 19. fastening a bolt; 20. a lifting cylinder; 21. a moving block; 22. fixing grooves; 23. a sliding groove; 24. positioning blocks; 25. positioning a groove; 26. a pushing hole; 27. a push block; 28. a positioning spring; 29. a first positioning magnet; 30. and a second positioning magnet.

Detailed Description

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

The embodiment discloses a gantry numerical control milling machine, as shown in fig. 1 and 2, which comprises a milling machine body 1, wherein the milling machine body 1 is a DHXK3708 type milling machine purchased from north-river heavy-weight machinery limited company, and comprises a machine frame 2, a housing 3 and a spindle 4, one end of the spindle 4 extends out of the housing 3, a motor for driving the spindle 4 to rotate is installed inside the housing 3, and the motor is a variable frequency motor. The lower end of the main shaft 4 is connected with a milling cutter 5, and the workpiece is processed by the milling cutter 5 rotating at high speed.

As shown in fig. 2 and 3, the milling cutter 5 includes a cutter head 6 and a cutter handle 7, the cross section of the cutter handle 7 is square, the upper end of the cutter handle 7 is connected with the spindle 4 through two mounting bolts, a mounting groove 9 extending along the vertical direction is formed in the lower end face of the cutter handle 7, a mounting rod 10 is fixed on the upper end face of the cutter head 6, and the mounting rod 10 can extend into the mounting groove 9. Be equipped with fixed orifices 11 on the lateral wall of installation pole 10, fixed orifices 11 are close to the upper end of installation pole 10, are equipped with two removal holes 12 that extend along vertical direction on the inner wall of mounting groove 9, and two removal holes 12 are symmetrical about the axis of mounting groove 9. A fixing bolt 13 penetrating through the two moving holes 12 simultaneously penetrates through the fixing hole 11, and a fixing nut 14 is connected to one side, far away from the head, of the fixing bolt 13 in a threaded manner. When machining a workpiece with a small thickness, one can move the mounting rod 10 relative to the shank 7 by loosening the fixing nut 14, then move the mounting rod 10 down the mounting slot 9 until the cutting head 6 comes into contact with the workpiece, so that the length of the milling cutter 5 changes, and finally tighten the fixing nut 14 to fix the position of the mounting rod 10.

As shown in fig. 2 and 3, a polish rod 15 is integrally formed at one end of the fixing bolt 13 away from the head thereof, a limit ring 16 is fixed on the side wall of the polish rod 15, and the limit ring 16 is made of rubber material. When the fixing nut 14 is loosened, the limiting ring 16 can prevent the fixing nut 14 from being thrown out under the action of centrifugal force, and the fixing nut 14 is prevented from accidentally injuring other people. The connecting parts of the end surfaces of the limiting ring 16 close to the fixing nut 14 and far away from the fixing nut 14 and the end surface of the limiting ring far away from the polish rod 15 are provided with guide surfaces 17, and the two guide surfaces 17 are inclined planes with opposite inclination directions. The guide surface 17 functions as a guide when the fixing nut 14 passes through the stop collar 16, facilitating the movement of the fixing nut 14.

As shown in fig. 3 and 4, a lifting block 18 is fixed on a side wall of the mounting rod 10, and the lifting block 18 is located on the upper side of the fixing hole 11 and penetrates through one of the moving holes 12. A lifting cylinder 20 is installed on the lower end surface of the housing 3, a moving block 21 is fixed on the lifting cylinder 20 with its piston rod facing downward, and the moving block 21 and the lifting block 18 are connected by a positioning member. When the length of the milling cutter 5 is adjusted, the moving block 21 and the lifting block 18 are connected through the positioning piece, then the fixing nut 14 is unscrewed, and at the moment, people can drive the mounting rod 10 and the cutter head 6 to move through the lifting cylinder 20 without manual pushing, so that the milling cutter is labor-saving and convenient.

As shown in fig. 3 and 4, a fixing groove 22 is formed in the upper end surface of the lifting block 18, the cross-sectional area of the fixing groove 22 is larger than that of the moving block 21, a sliding groove 23 is formed in the inner wall, away from the mounting rod 10, of the fixing groove 22, the positioning element includes a positioning block 24 slidably arranged in the sliding groove 23, and a positioning groove 25 for the positioning block 24 to extend into is formed in the end surface, away from the handle 7, of the moving block 21. A pushing hole 26 extending along the horizontal direction is formed in the inner wall of the upper side of the sliding groove 23, a pushing block 27 is slidably arranged in the pushing hole 26, and the pushing block 27 is fixed at one end, far away from the fixing groove 22, of the positioning block 24. When the lifting block 18 and the moving block 21 are connected, the milling cutter 5 is rotated to enable the lifting block 18 to move to the position under the moving block 21, the lifting cylinder 20 drives the moving block 21 to move downwards into the fixing groove 22, then the pushing block 27 is moved by hand to enable the positioning block 24 to be embedded into the positioning groove 25, and the moving block 21 can drive the positioning block 24 to move when a piston rod of the lifting cylinder 20 stretches, so that the labor is saved and the convenience is realized. After the cutter head is moved in place, the positioning block 24 is moved out of the positioning groove 25 through the push block 27, and the rotation of the cutter head 6 is not influenced.

As shown in fig. 3 and 4, a positioning spring 28 is fixed on an inner wall of the sliding groove 23 away from the fixing groove 22, the other end of the positioning spring 28 is fixedly connected with the positioning block 24, and one end of the positioning block 24 extends out of the sliding groove 23 under the action of the positioning spring 28. The inner wall of the positioning groove 25 far away from the opening is embedded with a first positioning magnet 29, and the end surface of the positioning block 24 far away from the positioning spring 28 is embedded with a second positioning magnet 30 matched with the first positioning magnet 29. When the positioning block 24 extends into the positioning groove 25, the first positioning magnet 29 and the second positioning magnet 30 attract each other, so that the positioning block 24 is not easy to move out of the positioning groove 25, and the stability of the positioning block 24 is improved.

As shown in fig. 4, a fastening block 8 is fixed to a side surface of the push block 27, the fastening block 8 is close to an upper end of the push block 27, and a fastening bolt 19 screwed with the lifting block 18 is inserted into the fastening block 8. After the moving block 21 and the lifting block 18 are separated, the position of the fastening block 8 is fixed by the fastening bolt 19, so that the positioning block 24 is prevented from moving relative to the milling cutter 5.

The working principle of the embodiment is as follows: when a workpiece with small thickness is machined, the lifting block 18 is firstly rotated to be right below the moving block 21, then the fixing nut 14 and the fastening bolt 19 are unscrewed, the pushing block 27 is manually moved to enable the positioning block 24 to be accommodated in the sliding groove 23, meanwhile, the moving block 21 is driven by the lifting cylinder 20 to move downwards to the fixing groove 22, and then the pushing block 27 is loosened to enable the positioning block 24 to extend into the positioning groove 25 under the action of the positioning spring 28. At the moment, people can drive the positioning block 24, the mounting rod 10 and the tool bit 6 to move downwards through the lifting cylinder 20 until the tool bit 6 is in contact with a workpiece, people do not need to repeatedly disassemble and assemble the milling machine to adjust the height of the spindle 4, and the milling machine is simple and convenient to operate and high in working efficiency. After the installation rod 10 is adjusted to the right position, the fixing nut 14 is screwed to fix the installation rod 10, the positioning block 24 is separated from the positioning groove 25 by moving the pushing block 27 by hand, the moving block 21 is moved out of the fixing groove 22 by the lifting cylinder 20, and finally the position of the fastening block 8 is fixed by the fastening bolt 19.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a planer-type numerically controlled fraise machine, includes milling machine body (1), milling machine body (1) includes that shell (3) and one end stretch out main shaft (4) of shell (3), be connected with milling cutter (5), its characterized in that on main shaft (4): the milling cutter (5) comprises a cutter head (6) and a cutter handle (7) installed on a main shaft (4), wherein an installation rod (10) is arranged on one side, close to the cutter handle (7), of the cutter head (6), an installation groove (9) for the installation rod (10) to extend into is formed in the cutter handle (7), two moving holes (12) extending in the vertical direction are symmetrically formed in the inner wall of the installation groove (9), a fixing hole (11) is formed in the installation rod (10), a fixing bolt (13) penetrating through the two moving holes (12) simultaneously penetrates through the fixing hole (11), and a fixing nut (14) is connected to the fixing bolt (13) in a threaded mode; the mounting rod (10) is fixedly provided with a lifting block (18) penetrating through one of the moving holes (12), the shell (3) is provided with a lifting cylinder (20), a piston rod of the lifting cylinder (20) is arranged towards the lifting block (18) and is connected with a moving block (21), and the moving block (21) and the lifting block (18) are detachably connected through a positioning piece.

2. The gantry numerically controlled milling machine according to claim 1, wherein: one side of the lifting block (18) facing the moving block (21) is provided with a fixing groove (22), the side face of the fixing groove (22) is provided with a sliding groove (23), the positioning piece comprises a positioning block (24) which is slidably arranged in the sliding groove (23), and one side of the moving block (21) close to the positioning block (24) is provided with a positioning groove (25) for the positioning block (24) to stretch into.

3. A gantry numerically controlled milling machine according to claim 2, characterized in that: the inner wall of the sliding groove (23) is connected with a positioning spring (28), the other end of the positioning spring (28) is fixedly connected with a positioning block (24), and one end of the positioning block (24) extends out of the sliding groove (23) under the action of the positioning spring (28).

4. A gantry numerically controlled milling machine according to claim 2, characterized in that: the inner wall of constant head tank (25) has inlayed first location magnet (29), be equipped with on locating piece (24) with first location magnet (29) complex second location magnet (30).

5. A gantry numerically controlled milling machine according to claim 2, characterized in that: the inner wall of the sliding groove (23) is provided with a pushing hole (26) which is the same as the extending direction of the sliding groove, a pushing block (27) fixedly connected with the positioning block (24) is arranged in the pushing hole (26) in a sliding mode, a fastening block (8) is arranged on the pushing block (27), and the fastening block (8) is connected with the lifting block (18) through a fastening bolt (19).

6. The gantry numerically controlled milling machine according to claim 1, wherein: a polished rod (15) is integrally formed on one side, away from the head, of the fixing bolt (13), a limiting ring (16) is arranged on the side wall of the polished rod (15), and the limiting ring (16) is a rubber ring.

7. A gantry numerically controlled milling machine according to claim 6, characterized in that: the connecting parts of the two opposite end surfaces of the limiting ring (16) and the end surfaces thereof far away from the polish rod (15) are respectively provided with a guide surface (17), and the two guide surfaces (17) are inclined surfaces with opposite inclined directions.

8. The gantry numerically controlled milling machine according to claim 1, wherein: the section of the knife handle (7) is square.

9. The gantry numerically controlled milling machine according to claim 8, wherein: the tool shank (7) is connected with the main shaft (4) through at least two mounting bolts.