WO2013159630A1

WO2013159630A1 - Deep-hole cutter lifting lathe for automatically clamping workpiece without shutdown

Info

Publication number: WO2013159630A1
Application number: PCT/CN2013/073415
Authority: WO
Inventors: 帅家园; 陈名乔
Original assignee: Shuai Jiayuan; Chen Mingqiao
Priority date: 2012-04-28
Filing date: 2013-03-29
Publication date: 2013-10-31
Also published as: CN102632250B; CN102632250A

Abstract

A deep-hole cutter lifting lathe for automatically clamping a workpiece without shutdown comprises a rack (10), a cutter feeding mechanism (20), and a main shaft mechanism (30). The cutter feeding mechanism (20) comprises a movable seat (21), a cutter bar (22), and a first driving mechanism (23). The main shaft mechanism (30) comprises a main shaft rotor (31), a clamper (32), an outer case (33), a main shaft motor, a second driving mechanism (34), a driving cylinder (35), a cutter lifting shaft (36), and a cutter lifting sleeve (37). The cutter lifting shaft (36) extends forwards to a main shaft hole of the main shaft rotor (31), and a front end of the cutter lifting shaft (36) is disposed with a cutter accommodation hole (361). The cutter lifting sleeve (37) is sleeved at the front end of the cutter lifting shaft (36) and is disposed with a cutter lifting hole (371) fitting a diameter of the cutter bar (22). Therefore, during work, the lathe performs double support for two ends of the cutter bar (22) in coordination with the movable seat (21) and the cutter lifting sleeve (37), so as to improve rigidity of the cutter bar (22) to a great extend, and greatly increase the cutting amount of a cutter for each time, thereby improving the processing efficiency of the workpiece. In addition, feeding, discharging, clamping, and loosening of the workpiece are performed at the same time during high speed operation of the main shaft rotor (31) and the clamper (32) without procedures of starting and stopping of the main shaft rotor (31), so that the overall efficiency is high.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of lathe technology, and more particularly to a deep hole lift lathe that automatically mounts workpieces without stopping the machine, which can automatically feed and discharge and automatically clamp and loosen When the workpiece is opened, the tool is supported by both ends, and the workpiece with deep holes can be processed. Background technique

Efficient deep hole machining of rotary materials of various materials has always been a problem in the basic industry. The reason is that the so-called deep hole generally means that the ratio of length to diameter is 2 to 3 times, resulting in the diameter of the tool entering the hole. The limit must be smaller than the hole of the workpiece being machined, and the height of the tool feed and the height of the safe retraction must be considered, and the tool diameter is smaller. Because of the material that can be used to make a tool with a certain strength and toughness, the stiffness is determined by the cross-sectional area of its effective diameter, and its correlation with its microstructure and heat treatment state is not high. Therefore, when the diameter is limited, and the tool is deep into the hole, the cantilever beam structure will inevitably bend the tool bar when the tool tip is stressed, causing the tool to vibrate and the precision is seriously degraded. The small amount of cutting repeatedly cuts the workpiece, making the machining efficiency of the workpiece extremely low.

On the processing machines such as the boring machine and the milling machine, the structure supported by the two ends of the tool has appeared, and good results have been obtained, but the solution of the two ends of the tool has never been effectively supported on the lathe structure. The reason is that the workpiece of the lathe needs to be rotated, usually a tool. When the feeding operation is completed, synchronous feeding is a difficulty when the two ends are supported. In addition, the rotating mechanism makes the spindle of the lathe usually longer, and the supporting mechanism is difficult to install. Furthermore, the automatic clamping of the workpiece, the fixture of the lathe spindle and the spindle are realized. The rotary drive mechanism also needs to occupy the space around the front or the rear of the spindle, so the tool support mechanism at both ends of the lathe has been difficult to achieve. SUMMARY OF THE INVENTION In view of the deficiencies of the prior art, the object of the present invention is to provide a deep hole lift lathe that automatically mounts a workpiece without stopping the machine, which can effectively solve the problem that the existing lathe tool can not obtain the support at both ends and the inner hole of the workpiece The problem of low processing efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions:

A deep hole lift lathe for automatically clamping a workpiece without stopping the machine, comprising a frame, a tool feeding mechanism and a spindle mechanism arranged on the frame to cooperate with each other for processing the workpiece, wherein

The tool feeding mechanism includes a movable seat, a arbor disposed on the movable seat, and a first driving mechanism for driving the movable seat to move axially along the arbor. The arbor is provided with a cutter, and the cutter is disposed on the movable seat a movable plate for protecting the tool and axially positioning the rear end of the workpiece, the movable plate being located at the periphery of the arbor and movable axially along the arbor;

The spindle mechanism comprises a spindle rotor, a clamp disposed on the spindle rotor for synchronous rotation, a jacket sleeved on the spindle rotor, a spindle motor for driving the spindle rotor to rotate, and a driving jacket for driving the spindle rotor to move up and down radially. a second driving mechanism, a driving cylinder for driving the clamp to radially clamp or loosen the workpiece, a lifting shaft, and a lifting sleeve, the spindle rotor and the clamping body respectively have a spindle hole and a central space for the cutter rod to carry in and out of the workpiece The lifting shaft extends forwardly into the spindle hole of the spindle rotor, and the front end of the lifting shaft is provided with a receiving knife hole for inserting the front end of the cutter rod, and the receiving knife hole extends along the length direction of the lifting cutter shaft, and the lifting knife sleeve is sleeved in the lifting On the front end of the cutter shaft, the lift sleeve has a lift hole matched with the diameter of the cutter rod and a front end surface for axially positioning the front end of the workpiece, the lift cutter hole is provided with a notch for the cutter to pass, and the lift cutter is provided The hole is connected backward with the hole of the blade of the lifting blade, and the blade hole is connected to the hole of the spindle and the center space forward.

As a preferred solution, the spindle mechanism further includes a spindle housing mounted on the frame, the front portion of the spindle housing is provided with a track in the up and down direction, and the spindle body is mounted on the rail, and the outer sleeve is fixed on the rail The spindle body base can be driven up and down with the spindle body base under the driving of the second driving mechanism Exercise.

As a preferred solution, a central portion of the spindle housing has a mounting hole, and the driving cylinder is mounted in the mounting hole, and the driving cylinder has a hollow piston that transmits a driving force to the clamp, and the hollow piston is provided with One or more linear bearings, the lifting shaft extends through the hollow piston of the driving cylinder into the spindle hole of the spindle rotor, and the linear shaft 7| is sleeved on the lifting shaft.

As a preferred solution, a fixing sleeve is fixedly connected to the rear end of the spindle housing, and the lifting shaft is fixed in the fixing sleeve, and the fixing sleeve is provided with one or more supporting sleeves for supporting the lifting shaft .

As a preferred solution, the main shaft rotor is sleeved with a toothed wheel, and the toothed wheel is connected to the main shaft motor through a matching toothed chain. The main shaft rotor is provided with a rotation stop bearing, and the inner end of the anti-rotation bearing A front ferrule is connected, and the hollow piston head of the driving cylinder is provided with a corresponding rear ferrule, and the front ferrule is engaged with the rear ferrule.

As a preferred solution, the front ferrule is further provided with a rotation preventing sleeve and a rotation preventing sleeve lock for preventing the rotation force from being transmitted to the rear ferrule.

As a preferred solution, the clamp is located at the front end of the spindle rotor, and the clamp has a plurality of self-centering jaws that enclose the central space.

As a preferred solution, the lifting shaft is provided with a blowing hole for the high-pressure fluid to flow through the material to be blown out while cooling the tool. Correspondingly, the frame is provided outside the spindle mechanism for receiving and blowing. The collecting groove of the material to be cut, the blowing hole is extended from the rear end of the lifting shaft to the front end and communicates with the main shaft hole of the main shaft rotor and the central space of the jig.

As a preferred solution, the movable base is provided with a tool base, a broaching sleeve, a broaching rod and a broach cylinder, and the arbor is detachably connected to the broach sleeve through the tool base, and the broaching rod One end is connected to the broach sleeve, and the other end is connected to the broach cylinder, and the zipper cylinder applies a tensioning force of the tensioning arbor and a detaching force of the ejector lever to the broach sleeve through the broaching rod. As a preferred solution, the movable seat is provided with a positioning cylinder for driving the movable plate to move axially along the tool bar, and the positioning cylinder is connected to the movable plate by an adjustment.

The utility model relates to a deep hole lifting tool lathe which automatically sets the workpiece without stopping the machine, and the beneficial effects thereof are as follows:

1. By setting the lifting knife sleeve sleeved on the lifting knife shaft, the front end of the knife bar is supported by the lifting knife hole of the lifting knife sleeve during work, and the support of the movable seat to the rear end of the knife bar, the tool bar is greatly supported by the double support Increased rigidity can greatly improve the cutting amount of the tool each time, and then improve the processing efficiency of the workpiece; and, the feeding, discharging, clamping and loosening of the workpiece are performed while the spindle rotor and the clamp are kept at high speed. There is no start-up, stop, etc. of the spindle rotor, and the total efficiency is very high; in addition, the invention has low cost, low energy consumption, easy manufacture, and stable workpiece processing quality.

2. By providing a blowing hole for the high-pressure fluid to flow through the lifting shaft, the blowing hole communicates with the spindle hole of the spindle rotor and the central space of the clamp, and the structural cylinder is compact, and on the one hand, it is convenient to use the high-pressure fluid to be The cutting material is blown out to prevent the cut material from affecting the machining of the workpiece to ensure the processing quality. On the other hand, the high pressure fluid can cool the tool and prolong the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an assembled perspective view of an embodiment of the present invention;

Figure 2 is a plan view of an embodiment of the present invention;

Figure 3 is a front elevational view of an embodiment of the present invention;

Figure 4 is a structural view showing main components of a spindle mechanism in an embodiment of the present invention;

Figure 5 is a cross-sectional view taken along line A-A of Figure 4.

among them:

10, rack; 11, slide rail; 1 01, workpiece; 12, collecting trough; 20, tool feed mechanism; 21, movable seat; 22, arbor; 23, the first drive mechanism; 231, drive screw; 24, movable plate; 25, positioning cylinder; 26, adjustment rod; 27, tool base 28, broach sleeve; 29, broach 4 dry; 210, broach cylinder;

30, spindle mechanism; 301, spindle shaft 7; 31, spindle rotor; 311, toothed wheel; 312, anti-rotation bearing; 313, front ferrule; 314, anti-rotation sleeve; 315, anti-rotation sleeve lock; Fixture; 321; jaw; 33, outer casing; 34, second drive mechanism; 35, drive cylinder; 351, hollow piston; 352, seal assembly; 353, linear shaft 7; 354, rear ferrule; 36, lift shaft 361, boring hole; 362, blowing hole; 37, lifting knife sleeve; 371, lifting knife hole; 38, spindle housing; 381, spindle body base; 382, slider; 383, track; 384, installation Hole; 39, fixed sleeve; 391, support sleeve;

40, control panel. DETAILED DESCRIPTION OF THE INVENTION The present invention will be further described below in conjunction with the drawings and specific embodiments.

Please refer to FIG. 1 to FIG. 5, which shows a specific structure of a preferred embodiment of the present invention, a deep hole lift lathe that automatically mounts a workpiece without stopping the machine, including a frame 10, which is disposed on the frame 10. The tool feeding mechanism 20 and the spindle mechanism 30 which cooperate with each other to machine the workpiece 101, wherein:

A slide rail 11 is laterally disposed on the frame 10. The tool feeding mechanism 20 includes a movable seat 21, a cutter bar 22 disposed on the movable seat 21 for synchronous movement with the movable seat 21, and a first driving mechanism 23 for driving the movable seat 21 to move axially along the cutter bar 22, the activity The seat 21 is disposed on the slide rail 11 of the frame 10. The axial direction of the cutter bar 22 is parallel to the longitudinal direction of the slide rail 11. The first drive mechanism 23 is connected to the movable base 21 via a drive screw 231. It can be moved back and forth along the shank 22 on the slide rail 11 under the transmission of the drive screw 231; the cutter bar 22 is provided with a detachable cutter (not shown), and can be placed on the arbor 22 as needed. The tool is replaced, and the tool is provided on the movable seat 21 for protecting the tool And a movable plate 24 for axially positioning the rear end of the workpiece 101. The movable plate 24 is located at the periphery of the shank 22 and is axially movable along the shank 22, and the movable plate 24 is pressed against the rear end surface of the workpiece 101 to the workpiece 101. The rear end is axially positioned, and the tool bar 22 can be adapted to the workpiece 101 of different lengths by adjusting the end point of the movement of the movable plate 24. When the movable plate 24 is located in front of the tool on the tool bar 22, the tool is protected by the movable plate 24, and the sleeve is protected. The workpiece 101 on the arbor 22 will not be able to damage the tool due to the blocking of the movable plate 24. In order to realize the motion control of the movable plate 24, the movable seat 21 is provided with a mechanism for driving the movable plate 24 along the arbor 22 To the moving positioning cylinder 25, the positioning cylinder 25 is connected to the movable plate 24 via an adjusting rod 26, and the positioning rod 25 drives the movable plate 24 to advance or retreat by the adjusting rod 26; and, in order to achieve the locking of the knife bar 22 The movable base 21 is further provided with a tool base 27, a broach bushing 28, a broaching rod 29 and a broach cylinder 210. The shank 22 is detachably passed through the tool base 27 and the broach sleeve 28. Connected, one end of the broaching rod 29 is connected to the broach sleeve 28, One end of the cylinder 210 is connected with the broach, a broach cylinder 210 by pulling the knife bar 2928 tensile tension to the pull-tight holder shank 22 and the shank 22 Release detachment force.

The spindle mechanism 30 includes a spindle rotor 31, a clamp 32 disposed on the spindle rotor 31 for synchronous rotation thereof, a jacket 33 sleeved on the spindle rotor 31 through the spindle bearing 301, and a spindle motor for driving the spindle rotor 31 to rotate (not Marked), a second drive mechanism 34 for driving the outer casing 33 to drive the spindle rotor 31 to move up and down, a drive cylinder 35 for driving the clamp 32 to radially clamp or loosen the workpiece 101, a lift shaft 36, and a lift knife The spindle rotor 31 and the clamp 32 respectively have a spindle hole (not shown) and a central space (not shown) for the cutter bar 22 to enter and exit with the workpiece 101, and the spindle rotor 31 is sleeved with a tooth. The gear wheel 311 is connected to the spindle motor through a matching toothed chain (not shown). Since the spindle rotor 31 needs to move up and down, the cooperation of the toothed chain and the toothed wheel 311 can make the spindle motor The toothed wheel 311 is allowed to have a certain amplitude of movement while remaining stationary; the clamp 32 is a wedge type jaw clamp located at the front end of the spindle rotor 31 and having a plurality of self-centering jaws 321 Claw 321 encloses the formation The central space described, the jaws 321 driven by the driving cylinder 35 during operation Moving to the central space to firmly clamp the workpiece 101, which can center the circular workpiece 101 of different diameters, thereby driving the workpiece 101 to rotate with the spindle rotor 31; the driving cylinder 35 can be a hydraulic driving cylinder or air pressure For the drive cylinder, when strong clamping is required, the hydraulic medium is preferred. When the light workpiece 101 needs to be clamped at a high speed, the pneumatic is used; the lift shaft 36 is extended into the spindle hole of the spindle rotor 31, and the lift shaft 36 is lifted. The front end of the cutter head 22 is provided with a cutter hole 361 for inserting the front end of the cutter bar 22 to support the front end of the cutter bar 22. The cutter hole 361 extends along the longitudinal direction of the lifter shaft 36, and the lifter shaft 36 is also provided with a high pressure fluid flow. The venting hole 362 of the tool is blown out while the material to be cut is blown out, and correspondingly, the frame 10 is provided with a collecting groove 12 for receiving the blown material to be cut out outside the spindle mechanism 30, and the blowing hole 362 is provided. The front end of the lift shaft 36 extends to the front end to communicate with the spindle hole of the spindle rotor 31 and the central space of the clamp 32. During operation, the compressed fluid can be introduced from the rear end of the lift shaft 36 to the front end through the blow hole 362. For chip evacuation and cooling The lifting knife sleeve 37 is sleeved on the front end of the lifting knife shaft 36. The center of the lifting knife sleeve 37 has a lifting knife hole 371 matched with the diameter of the knife bar 22, and the lifting knife hole 371 is provided with a tool for the knife bar 22. Through the gap, a gas flow or other fluid can also flow from the gap to cool and chip the cutter, and the lift hole 371 is connected backward with the pocket 361 of the lift shaft 36, and the lift hole 371 is forward and the spindle The hole and the central space are connected, and the receiving hole 361, the lifting hole 371, the spindle hole and the central space are connected to form a passage for the shank 22 to enter and exit. The front end surface of the lifting shank 37 can block the workpiece 101 from entering the lifting hole. 371, thereby achieving axial positioning of the front end of the workpiece 101.

And, the spindle mechanism 30 further includes a spindle housing 38 mounted on the frame 10, the front portion of the spindle housing 38 is provided with a rail 383 in the up and down direction, and the rail 383 is also used as a part of the bearing structure of the spindle housing 38. A spindle body base 381 is mounted on the rail 383. The outer sleeve 33 is fixed on the spindle body base 381 and can be moved up and down along the rail 383 with the spindle body base 381 under the driving of the second driving mechanism 34. The moving frictional force of the spindle body base 381 and the direction of motion of the spindle body base 381 are provided on the rail 383 with a slider 382 that connects the spindle body base 381; the middle of the spindle housing 38 There is a mounting hole 384 in which the driving cylinder 35 is mounted, and the driving cylinder 35 has a hollow piston 351 that transmits a driving force to the clamp 32. To improve the sealing property, the driving cylinder 35 is provided with two sealing components. 352, two sealing components 352 are set at the front and rear ends of the hollow piston 351, the hollow piston 351 is provided with one or more cylindrical linear bearings 353, the linear bearing 353 can reduce the hollow piston 351 in the driving fixture 32 The frictional force of the linear movement made during clamping or loosening, on the other hand, can be applied to the lifting shaft 36 by means of a hollow piston 351 of the drive cylinder 35, which passes through the drive cylinder 35. The hollow piston 351 extends forwardly into the spindle hole of the spindle rotor 31, and the linear shaft ₇ | 353 is sleeved on the lift shaft 36; a fixed sleeve 39 is fixedly coupled to the rear end of the spindle housing 38, and the lift shaft 36 is attached. Fixed in the fixing sleeve 39, in order to support the lifting shaft 36, the fixing sleeve 39 is provided with one or more supporting sleeves 391; the spindle rotor 31 is provided with a rotation preventing shaft 7312, and the inner shaft of the rotation preventing shaft 7312 is connected Front ferrule 313, empty of the driving cylinder 35 The head of the piston 351 is provided with a corresponding rear ferrule 354, and the front ferrule 313 is engaged with the rear ferrule 354, and the front ferrule 313 is further provided with a rotation preventing sleeve for preventing the rotation force from being transmitted to the rear ferrule 354. 314 and the anti-rotation sleeve lock 315, so as to keep the driving cylinder 35 stationary when the spindle rotor 31 rotates and move up and down, so that the lifting shaft 36 can be fixed under the double support of the fixing sleeve 39 and the linear bearing 353. The hollow piston 351, which does not affect the drive cylinder 35, is applied to the spindle rotor 31 in an immovable manner to drive the clamp 32 on the spindle rotor 31 to operate.

The present invention also includes a control panel 40 that is disposed on the frame 10 for controlling the operation of the aforementioned tool feed mechanism 20 and spindle mechanism 30.

The working process of this embodiment is as follows:

When the workpiece 101 is processed, the lathe is started, and the spindle rotor 31 drives the clamp 32 thereon to be continuously rotated by the spindle motor. First, the tubular workpiece 101 to be processed is placed on the head of the cutter 22 without being positioned. The workpiece 101 can be attached or picked up by the robot to attach or detach the workpiece 101 to realize the unmanned operation. Then, the movable mechanism 21 is moved forward by the first driving mechanism 23, The cutter bar 22 moves the workpiece 101 into the spindle rotor 31 in accordance with the axial movement of the movable seat 21. The front end of the cutter bar 22 sequentially passes through the center space of the clamp 32 in the open state on the spindle rotor 31, and the lifter of the lift sleeve 37 is lifted. The hole 371 extends into the pocket 361 of the lifter shaft 36 to obtain support. When the workpiece 101 enters the central space of the clamp 32 in the open state, the front end of the workpiece 101 is blocked by the front end surface of the lift sleeve 37 to the workpiece 101. The front end is axially positioned, and as the shank 22 continues to advance, the movable plate 24 will axially abut the rear end of the workpiece 101 to axially position the rear end of the workpiece 101, thus utilizing the movable plate 24 and the lift sleeve 37 achieves axial clamping positioning of the ends of the workpiece 101, after which the jaws 321 of the clamp 32 clamp the workpiece 101 under the driving of the driving cylinder 35, thereby realizing the radial positioning of the workpiece 101, after the workpiece 101 is radially clamped and positioned Rotating synchronously with the clamp 32; then, the positioning cylinder 25 drives the movable plate 24 to retreat by the adjustment lever 26, so that the cutter bar 22 can continue to advance axially for tool feeding, while the clamp 32 sandwiches the workpiece 101 at the second drive mechanism 34. Driven radially Moving up to the machining position, the cutter bar 22 and the workpiece 101 are disengaged; then, the first drive mechanism 23 drives the movable seat 21 to move axially, and the cutter bar 22 moves axially with the movable seat 21 to perform axial feed of the cutter. The second driving mechanism 34 drives the jig 32 to carry out the radial feeding of the tool with the workpiece 101 moving up and down radially on the rail 383 with the spindle body base 381, and simultaneously processing the workpiece 101 by using the rotation of the workpiece 101, the workpiece After the processing of 101, the cutter bar 22 moves backward with the movable seat 21 under the driving of the first drive mechanism 23 until the tool exits from the machining position, and then the movable plate 24 moves forward to the front of the cutter. To protect the tool, the clamp 32 releases the claw 321 while maintaining the high speed rotation, and the workpiece 101 falls back to the cutter bar 22; finally, the first drive mechanism 23 drives the movable seat 21 to move axially backward with the cutter bar 22. Until the workpiece 101 and the cutter bar 22 exit together, a machining cycle is completed. It should be noted that the clamp 32 can also be a spinning mode clamp. When the clamp 32 is a spinning mode clamp, correspondingly, the cutter 22 can be mounted with a spinning internal mold (not shown). The use of the lifting force of the lifting shaft 36 can complete the spinning process of the pipe. Due to the high rigidity of the lifting knife, a larger spinning pressure can be used, and the forming efficiency is extremely high. Of course, the invention can also be An end face cutting tool is mounted on the lift sleeve 37, and a further end face cutting tool is attached to the movable plate 24, so that the inner hole and the both end faces of the workpiece 101 can be simultaneously processed.

It should be noted that the first driving mechanism 23 and the second driving mechanism 34 in this embodiment are servo motors controlled by a numerical control system, and the movement mode and speed thereof can be arbitrarily adjusted, the driving cylinder 35, the positioning cylinder 25 and the broach The cylinder 210 is driven by a fluid such as hydraulic pressure or pneumatic pressure, which can conveniently throttle and adjust the working pressure. Of course, these mechanisms can also be numerically controlled servo or electronically controlled.

The above is only the preferred embodiment of the present invention, and it is not within the scope of the technical solution of the present invention to make any changes and modifications to the technical scope of the present invention.

Claims

Claim

A deep hole lift lathe that automatically mounts a workpiece without stopping the machine, comprising: a frame, a tool feed mechanism and a spindle mechanism disposed on the frame to cooperate with each other to process the workpiece, wherein

The tool feeding mechanism includes a movable seat, a arbor disposed on the movable seat, and a first driving mechanism for driving the movable seat to move axially along the arbor, the arbor is provided with a cutter, and the cutter is disposed on the movable seat a movable plate for protecting the tool and axially positioning the rear end of the workpiece, the movable plate being located at the periphery of the arbor and movable axially along the arbor;

The spindle mechanism comprises a spindle rotor, a clamp disposed on the spindle rotor for synchronous rotation, a jacket sleeved on the spindle rotor, a spindle motor for driving the spindle rotor to rotate, and a driving jacket for driving the spindle rotor to move up and down radially. a second driving mechanism, a driving cylinder for driving the clamp to radially clamp or loosen the workpiece, a lifting shaft, and a lifting sleeve, the spindle rotor and the clamping body respectively have a spindle hole and a central space for the cutter rod to carry in and out of the workpiece The lifting shaft extends forwardly into the spindle hole of the spindle rotor, and the front end of the lifting shaft is provided with a receiving knife hole for inserting the front end of the cutter rod, and the receiving knife hole extends along the length direction of the lifting cutter shaft, and the lifting knife sleeve is sleeved in the lifting On the front end of the cutter shaft, the lift sleeve has a lift hole matched with the dry diameter of the cutter 4 and a front end surface for axially positioning the front end of the workpiece, the lift hole is provided with a notch for the cutter to pass, and is lifted The knife hole is connected backward with the tool hole of the lifting shaft, and the lifting hole is communicated with the spindle hole and the center space forward.

2. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 1, wherein: the spindle mechanism further comprises a spindle housing mounted on the frame, the front portion of the spindle housing is disposed There is a track in the up and down direction, and a track body base is mounted on the track. The outer case is fixed on the base of the spindle body and can be moved up and down along the track with the spindle body base under the driving of the second drive mechanism.

3. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 2, wherein: the middle portion of the spindle housing has a mounting hole, and the driving cylinder is installed in the mounting hole to drive The cylinder has a hollow piston that transmits a driving force to the clamp, and the hollow piston is provided with one or more linear bearings, and the lifting shaft extends through the hollow piston of the driving cylinder to the main shaft hole of the spindle rotor, straight The wire bearing is sleeved on the lifting shaft.

The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 2 or 3, wherein: a fixing sleeve is fixedly connected to a rear end of the spindle housing, and the lifting shaft is fixed at the In the fixing sleeve, the fixing sleeve is provided with one or more supporting sleeves for supporting the lifting shaft.

5. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 3, wherein: the main shaft rotor is sleeved with a toothed wheel, and the toothed wheel passes through a matching toothed chain and The spindle motor is connected, a rotation-stop bearing is arranged in the spindle rotor, and the inner sleeve of the rotation-stop bearing is connected with a front ferrule, and the hollow piston head of the drive cylinder is provided with a corresponding rear ferrule, a front ferrule and a rear ferrule Phase card connection.

6. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 5, wherein: the front ferrule is further provided with a rotation preventing sleeve for preventing the rotation force from being transmitted to the rear ferrule. The lock sleeve locks.

7. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 2, wherein: the clamp is located at a front end of the spindle rotor, and the clamp has a plurality of self-centering jaws, the claws Enclosure forms the central space.

8. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 1, wherein: the lifting shaft is provided with a blowing for supplying a high pressure fluid to blow the material to be cut while cooling the cutter. a material hole, correspondingly, the frame is provided with a collecting groove for receiving the blown material to be cut out outside the spindle mechanism, and the blowing hole extends from the rear end of the lifting shaft to the front end and the spindle hole of the spindle rotor, The center space of the fixture is connected.

9. The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 1, wherein: the movable base is provided with a cutter base, a broach sleeve, a broaching rod and a broach cylinder, The cutter rod is detachably connected to the broach sleeve through the tool base, one end of the broach rod is connected with the broach sleeve, and the other end is connected with the broach cylinder, and the broach cylinder is pulled to the broach sleeve through the broach rod Tightening force of the arbor and the removal of the shank Unloading force.

10 . The deep hole lift lathe of the automatic non-stop clamping workpiece according to claim 1 , wherein: the movable seat is provided with a positioning cylinder for driving the movable plate to move axially along the tool bar, the positioning. The cylinder is connected to the movable plate through an adjustment rod.