CN114714437A - Servo drive planet roller screw cutting machine - Google Patents

Servo drive planet roller screw cutting machine Download PDF

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Publication number
CN114714437A
CN114714437A CN202210331447.1A CN202210331447A CN114714437A CN 114714437 A CN114714437 A CN 114714437A CN 202210331447 A CN202210331447 A CN 202210331447A CN 114714437 A CN114714437 A CN 114714437A
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CN
China
Prior art keywords
roller screw
base
planetary roller
fixing frame
servo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202210331447.1A
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Chinese (zh)
Inventor
朱春才
朱智
朱慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yancheng Zhicheng Machine Manufacturing Co ltd
Original Assignee
Yancheng Zhicheng Machine Manufacturing Co ltd
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Filing date
Publication date
Application filed by Yancheng Zhicheng Machine Manufacturing Co ltd filed Critical Yancheng Zhicheng Machine Manufacturing Co ltd
Priority to CN202210331447.1A priority Critical patent/CN114714437A/en
Publication of CN114714437A publication Critical patent/CN114714437A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38Cutting-out; Stamping-out
    • B26F1/44Cutters therefor; Dies therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08Means for actuating the cutting member to effect the cut

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a servo drive planetary roller screw cutting machine which comprises a machine body, an upper fixing frame, a servo motor, a planetary roller screw and a base. The machine body is provided with a workbench in the middle, an upper fixing frame is arranged on the upper portion of the machine body, a through avoidance groove is formed in the upper fixing frame, and the servo motor moves horizontally in the avoidance groove. The base horizontally moves at the bottom of the lower fixing frame through the transverse moving motor, the base comprises a top plate and a barrel, the barrel is fixed below the top plate, and a through hole is formed in the center of the barrel and the center of the top plate. A bearing seat is installed on the central cylinder of the base, a planetary roller screw is installed in the bearing seat through an angular contact bearing, and the planetary roller screw is connected with an output shaft of the servo motor through a coupler or a speed reducer. The lower part of the nut seat matched with the planetary roller screw is provided with a telescopic cylinder barrel, the bottom of the telescopic cylinder barrel is provided with a connecting plate, and the connecting plate is provided with a cutting die. The invention has no pollution of hydraulic oil, high cutting speed, high efficiency and high bit precision.

Description

Servo drive planet roller screw cutting machine
Technical Field
The invention belongs to the field of cutting machines, and particularly relates to a servo drive planetary roller screw cutting machine.
Background
The cutting machine is an indispensable device in the light industry, and presses a cutting die by means of the acting force of the movement of the machine to perform punching processing on the non-metal material. The cutting die is suitable for punching and cutting nonmetal materials such as foaming materials, paperboards, textiles, plastic materials, leather, rubber, packaging materials, floor materials, carpets, glass fibers, cork and the like by a cutting die with the help of the punching force generated by a machine.
The existing cutting machine is mainly driven by hydraulic pressure, for example, a precision four-column cutting machine disclosed in chinese patent CN108890776A, and a fixed or non-fixed cutting die is punched by a cutting platform arranged on the machine frame under the drive of a hydraulic cylinder. In the chinese invention patent CN 103921307A-ram movable hydraulic cutting machine and the method thereof, the material is punched by a movable ram, a piston and an oil cylinder are arranged in the center of a movable seat, the oil cylinder is fixed on an upper striking plate, four pull rod units penetrate through the movable seat and are fixed on the upper striking plate, and an oil inlet pipe is fixed on the side of the movable seat.
The cutting machine adopting hydraulic drive has the following problems:
1. hydraulic oil adopted by hydraulic drive leaks, so that pollution exists, and the hydraulic cutting machine cannot be applied to nonmetal cutting in industries such as medical treatment and the like;
2. the hydraulic cylinder is unstable in operation, low in efficiency and high in speed, the stamping speed is limited by the oil charging speed and the oil discharging speed, and high-speed cutting cannot be performed;
3. the precision is not high, the repeated positioning precision is about 0.5mm, and the device has poor running condition, large size displacement and frequent maintenance in severe environments such as low temperature, dust, chemical deposition, no lubrication and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that the existing cutting machine is mainly driven by hydraulic pressure, cannot carry out high-speed cutting, has low precision and is easy to cause pollution.
The technical scheme of the invention is as follows: the invention provides a servo-driven planetary roller screw cutting machine, which comprises a machine body, an upper fixing frame, a servo motor, a planetary roller screw and a base,
the middle part of the machine body is provided with a workbench, the upper part of the machine body is provided with an upper fixing frame, a through avoiding groove is arranged in the upper fixing frame, a servo motor horizontally moves in the avoiding groove,
the base horizontally moves at the bottom of the lower fixing frame through the transverse moving motor, the base comprises a top plate and a cylinder body, the cylinder body is fixed below the top plate, a through hole is arranged at the center of the cylinder body and the top plate,
the stator of the servo motor is arranged on the top plate of the base through a sleeve, the central cylinder of the base is provided with a bearing seat, a planetary roller screw is arranged in the bearing seat through an angular contact bearing, the planetary roller screw is connected with the output shaft of the servo motor through a coupler or a reducer,
the lower part of the nut seat matched with the planetary roller screw is provided with a telescopic cylinder barrel, the telescopic cylinder barrel is sleeved on the outer side of the planetary roller screw, the bottom of the telescopic cylinder barrel is provided with a connecting plate, and the connecting plate is provided with a cutting die.
Furthermore, racks with downward tooth forms are mounted on the lower portions of the front side face and the rear side face of the lower fixing frame, a transverse moving motor is mounted on the side face of a top plate of the base, a gear is mounted on an output shaft of the transverse moving motor and meshed with the racks, and the transverse moving motor drives the base to horizontally reciprocate.
Furthermore, two symmetrical ball linear guide rails are installed at the bottom of the upper fixing frame, and four sliding blocks are symmetrically installed on the upper surface of the top plate of the base and matched with the ball linear guide rails.
Furthermore, a bottom plate is arranged at the bottom of the cylinder body of the base, guide sleeves are mounted on two sides of the bottom plate, symmetrical guide rods are fixedly mounted on the upper surface of the connecting plate, and the guide rods are matched with the guide sleeves on the base.
Further, the barrel outside of base is provided with the reinforcing plate of a plurality of hoop equipartitions, reinforcing plate and roof lower surface, bottom plate upper surface connection.
Further, the turntable is installed on the lower portion of the connecting plate and comprises a rotating motor, a mandrel and an outer gear, the mandrel is fixed to the center of the bottom of the connecting plate, the outer gear is sleeved on the mandrel through a bearing, an output shaft of the rotating motor drives the outer gear through a meshed pinion, and a cutting die is fixed to the bottom of the outer gear.
The invention has the beneficial effects that:
1. the servo-driven planetary roller screw cutting machine adopts a stamping mode of a servo motor and a planetary roller screw, is driven without oil, has no pollution of hydraulic oil, and is suitable for industries with higher requirements on medical treatment, food and the like;
2. the invention adopts the planetary roller screw drive, has good bearing characteristic, can realize heavy-duty cutting, and has higher cutting speed and higher efficiency compared with hydraulic drive;
3. the cutting tool has high structural stability and high positioning precision, and is suitable for cutting precision workpieces such as circuit boards and the like;
4. the upper fixing support is used as a supporting part, does not lift, is internally provided with the avoiding groove, and the servo motor can move in the avoiding groove, so that the structure is compact, the occupied space of the whole machine is effectively reduced, and the manufacturing cost is saved.
Drawings
FIG. 1 is a perspective view of a servo-driven planetary roller screw cutting machine according to the present invention;
FIG. 2 is a schematic front view of a servo-driven planetary roller screw cutting machine according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is an enlarged perspective view of the servo motor, the base, and the connecting plate according to the present invention;
fig. 6 is an enlarged schematic view of the servo motor and the base provided with the cutting die and the turntable according to the present invention.
In the figure: 1. a body; 2. a servo motor; 3. a connecting plate; 4. a traversing motor; 5. a base; 501. a top plate; 502. a barrel; 503. a base plate; 504. a reinforcing plate; 6. a guide bar; 7. an upper fixing frame; 701. an avoidance groove; 8. a coupling; 9. an angular contact bearing; 10. a slider; 11. a planetary roller screw; 12. a nut seat; 13. a telescopic cylinder barrel; 14. a sleeve; 15. a rack; 16. a ball linear guide; 17. a bearing seat; 18. a turntable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, a servo-driven planetary roller screw 11 cutting machine comprises a machine body 1, an upper fixing frame 7, a servo motor 2, a planetary roller screw 11 and a base 5. The middle of the machine body 1 is provided with a workbench, the upper portion of the machine body 1 is provided with an upper fixing frame 7, a through avoidance groove 701 is formed in the upper fixing frame 7, and the servo motor 2 moves horizontally in the avoidance groove 701. The base 5 horizontally moves at the bottom of the lower fixing frame through the traversing motor 4, the base 5 comprises a top plate 501 and a cylinder body 502, the cylinder body 502 is fixed below the top plate 501, and a through hole is formed in the centers of the cylinder body 502 and the top plate 501.
As shown in fig. 3 and 4, the planetary roller screw 11 is installed in the through hole of the cylinder 502. The stator of the servo motor 2 is installed on a top plate 501 of the base 5 through a sleeve 14, a bearing seat 17 is installed on a central cylinder 502 of the base 5, a planetary roller screw 11 is installed in the bearing seat 17 through an angular contact bearing 9, and the planetary roller screw 11 is connected with an output shaft of the servo motor 2 through a coupler 8 or a speed reducer. The lower part of a nut seat 12 matched with the planet roller screw 11 is provided with a telescopic cylinder barrel 13, the telescopic cylinder barrel 13 is sleeved outside the planet roller screw 11, the bottom of the telescopic cylinder barrel 13 is provided with a connecting plate 3, and the connecting plate 3 is provided with a cutting die.
As shown in fig. 5, a bottom plate 503 is disposed at the bottom of the cylinder 502 of the base 5, guide sleeves are mounted on two sides of the bottom plate 503, symmetrical guide rods 6 are fixedly mounted on the upper surface of the connecting plate 3, and the guide rods 6 are matched with the guide sleeves on the base 5. A plurality of reinforcing plates 504 which are circumferentially and uniformly distributed are arranged on the outer side of the cylinder 502 of the base 5, and the reinforcing plates 504 are connected with the lower surface of the top plate 501 and the upper surface of the bottom plate 503.
The second embodiment:
other aspects are the same as the first embodiment except for the horizontal movement of the base. Racks 15 with downward tooth forms are mounted on the lower portions of the front side face and the rear side face of the lower fixing frame, a transverse moving motor 4 is mounted on the side face of a top plate 501 of the base 5, a gear is mounted on an output shaft of the transverse moving motor 4, the gear is meshed with the racks 15, and the transverse moving motor 4 drives the base 5 to horizontally reciprocate.
Example three:
in other respects, as in the first and second embodiments, as shown in fig. 5, two symmetrical ball linear guides 16 are installed at the bottom of the upper fixing frame 7, and four sliders 10 are symmetrically installed on the upper surface of the top plate 501 of the base 5 to be matched with the ball linear guides 16.
Unlike the traditional cutting machine, the load reaction force acts on the base 5 when the cutting die cuts, and acts on the bottom of the lower fixing frame through the slide block 10 and the ball linear guide rail 16. The invention adopts an NIMIH HG series HGW45CC heavy load type ball linear guide rail 16, and the load is shared by four sliders 10, wherein each basic dynamic rated load is 125.3KN, and the basic static rated load is 191.85 KN.
Example four:
otherwise, as shown in fig. 6, except that a turntable 18 is installed below the connecting plate 3, the turntable 18 includes a rotating motor, a mandrel fixed at the center of the bottom of the connecting plate 3, and an external gear sleeved on the mandrel through a bearing, an output shaft of the rotating motor drives the external gear through a meshed pinion, and a cutting die is fixed at the bottom of the external gear.
The working principle of the invention is as follows:
in order to avoid the pollution of hydraulic oil, the oil-free pure electric driving cutting machine is innovatively provided with a servo driving motor as the power of a punching head, and in order to solve the problem of large load, a planetary roller screw 11 is matched with the oil-free pure electric driving cutting machine, and the planetary roller screw are directly connected through a coupler 8 or connected through a speed reducer. The nut seat 12 matched with the planetary roller screw 11 drives the cutting die to reciprocate in the vertical direction.
The invention adopts the planet roller screw 11 as the lifting execution unit, the planet roller screw 11 has good bearing property, is generally used for heavy bearing and high reliability, and mainly converts a small elliptic contact surface of the ball screw into a linear surface contact surface, thereby obviously increasing the bearing and contact rigidity. In addition, the structure of the planetary lead screw and a plurality of planetary small lead screws on the periphery belongs to a multi-thread structure, and the lead is increased, so that the linear speed is increased.
The invention adopts the servo motor 2 for driving, and the servo motor 2 has the advantages of fast response, high speed, small inertia, smooth rotation and stable moment. The control is complex, the intellectualization is easy to realize, the electronic commutation mode is flexible, and the square wave commutation or the sine wave commutation can be realized. The motor is free from maintenance, high in efficiency, low in operation temperature, small in electromagnetic radiation, long in service life and capable of being used in various environments. An avoiding groove 701 is formed in the upper fixing frame 7, the servo motor 2 runs in the avoiding groove 701, the height of the whole machine is reduced, and the structure of the cutting machine is more compact.
The nut seat 12 is lifted when the planetary roller screw 11 rotates, and drives the telescopic cylinder 13 to extend out of and retract into the base 5, so as to drive the cutting die on the connecting plate 3 to punch and retract. The cutting speed is higher, and the positioning accuracy is higher. A turntable 18 can be arranged on the connecting plate 3 to rotate the cutting die, so that materials are saved to the maximum extent under the coordination of typesetting software. The invention can bear heavy load for thousands of hours in extremely hard environment, and reduces the shutdown maintenance time and the maintenance cost.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.

Claims (6)

1. A servo drive planet roller screw cutting machine is characterized in that: comprises a machine body (1), an upper fixing frame (7), a servo motor (2), a planetary roller screw (11) and a base (5),
the middle part of the machine body (1) is provided with a workbench, the upper part of the machine body (1) is provided with an upper fixing frame (7), a run-through avoidance groove (701) is arranged in the upper fixing frame (7), the servo motor (2) horizontally moves in the avoidance groove (701),
the base (5) horizontally moves at the bottom of the lower fixing frame through the transverse moving motor (4), the base (5) comprises a top plate (501) and a cylinder body (502), the cylinder body (502) is fixed below the top plate (501), a through hole is formed in the centers of the cylinder body (502) and the top plate (501),
the stator of the servo motor (2) is arranged on a top plate (501) of a base (5) through a sleeve (14), a bearing seat (17) is arranged on a central cylinder (502) of the base (5), a planetary roller screw (11) is arranged in the bearing seat (17) through an angular contact bearing (9), the planetary roller screw (11) is connected with an output shaft of the servo motor (2) through a coupler (8) or a speed reducer,
the lower part of a nut seat (12) matched with the planet roller screw (11) is provided with a telescopic cylinder barrel (13), the telescopic cylinder barrel (13) is sleeved outside the planet roller screw (11), the bottom of the telescopic cylinder barrel (13) is provided with a connecting plate (3), and the connecting plate (3) is provided with a cutting die.
2. A servo-driven planetary roller screw cutting machine as claimed in claim 1, wherein: racks (15) with downward tooth forms are mounted on the lower portions of the front side face and the rear side face of the lower fixing frame, a transverse moving motor (4) is mounted on the side face of a top plate (501) of the base (5), a gear is mounted on an output shaft of the transverse moving motor (4), the gear is meshed with the racks (15), and the transverse moving motor (4) drives the base (5) to horizontally reciprocate.
3. A servo-driven planetary roller screw cutting machine according to claim 1 or 2, characterized in that: two symmetrical ball linear guide rails (16) are installed at the bottom of the upper fixing frame (7), and four sliding blocks (10) are symmetrically installed on the upper surface of a top plate (501) of the base (5) and matched with the ball linear guide rails (16).
4. A servo-driven planetary roller screw cutting machine as claimed in claim 1, wherein: the bottom of the cylinder body (502) of the base (5) is provided with a bottom plate (503), guide sleeves are installed on two sides of the bottom plate (503), symmetrical guide rods (6) are fixedly installed on the upper surface of the connecting plate (3), and the guide rods (6) are matched with the guide sleeves on the base (5).
5. A servo-driven planetary roller screw cutting machine as claimed in claim 4, characterized in that: the outer side of a cylinder body (502) of the base (5) is provided with a plurality of reinforcing plates (504) which are circumferentially and uniformly distributed, and the reinforcing plates (504) are connected with the lower surface of a top plate (501) and the upper surface of a bottom plate (503).
6. A servo-driven planetary roller screw cutting machine as claimed in claim 1, wherein: the rotary table (18) is installed to connecting plate (3) lower part, revolving stage (18) include rotating electrical machines, dabber, external gear, and the dabber is fixed at connecting plate (3) bottom center, and the dabber has cup jointed the external gear through the bearing, and the output shaft of rotating electrical machines drives the external gear through the pinion of meshing, the external gear bottom is fixed with the cutting die.
CN202210331447.1A 2022-03-30 2022-03-30 Servo drive planet roller screw cutting machine Withdrawn CN114714437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210331447.1A CN114714437A (en) 2022-03-30 2022-03-30 Servo drive planet roller screw cutting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210331447.1A CN114714437A (en) 2022-03-30 2022-03-30 Servo drive planet roller screw cutting machine

Publications (1)

Publication Number Publication Date
CN114714437A true CN114714437A (en) 2022-07-08

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ID=82240036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210331447.1A Withdrawn CN114714437A (en) 2022-03-30 2022-03-30 Servo drive planet roller screw cutting machine

Country Status (1)

Country Link
CN (1) CN114714437A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115582892A (en) * 2022-11-03 2023-01-10 盐城市智成机械制造有限公司 Light high-speed cutting device
CN115674360A (en) * 2022-11-03 2023-02-03 盐城市智成机械制造有限公司 Oilless full-electric three-layer automatic balance cutting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115582892A (en) * 2022-11-03 2023-01-10 盐城市智成机械制造有限公司 Light high-speed cutting device
CN115674360A (en) * 2022-11-03 2023-02-03 盐城市智成机械制造有限公司 Oilless full-electric three-layer automatic balance cutting machine
CN115674360B (en) * 2022-11-03 2024-03-08 盐城市智成机械制造有限公司 Oilless full-electric three-layer automatic balance cutting machine

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Application publication date: 20220708