CN114130860B - Be applied to pressure point and fulcrum combined mechanism on straightener - Google Patents
Be applied to pressure point and fulcrum combined mechanism on straightener Download PDFInfo
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- CN114130860B CN114130860B CN202111289344.5A CN202111289344A CN114130860B CN 114130860 B CN114130860 B CN 114130860B CN 202111289344 A CN202111289344 A CN 202111289344A CN 114130860 B CN114130860 B CN 114130860B
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- friction wheel
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- shaft
- driving mechanism
- driving motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
The invention discloses a pressing point and fulcrum combination mechanism applied to a straightening machine, which comprises a left bracket, an auxiliary driving motor, a pair of rotary top shafts, a plurality of anvils and a friction wheel driving mechanism, wherein the left bracket is connected with the auxiliary driving motor; the friction wheel driving mechanism comprises a friction wheel driving mechanism main body, a round table type friction wheel arranged at one end of the friction wheel driving mechanism main body and a pinch roller driving motor used for driving the round table type friction wheel to rotate; the radial driving motor is arranged on the outer side of the friction wheel driving mechanism main body in the horizontal direction and is used for driving the friction wheel driving mechanism main body to rotate, so that the round table type friction wheel is close to and drives the shaft workpiece to rotate circumferentially. The workpiece driving mechanism is characterized in that a round table type friction wheel drives the workpiece to rotate through static friction, and meanwhile, the whole driving mechanism can rotate in a plane between the axis of the workpiece and the ground, so that the driving effect on the workpiece is ensured. The bending device has the advantages of flexibility and strong adaptability, and can meet the requirements of workpieces with different bending conditions.
Description
Technical Field
The invention relates to a straightening technology of shaft blank workpieces, in particular to a pressing point and supporting point combination device which is free of a center and drives the workpieces by friction of friction wheels.
Background
The shaft lever type parts can be bent and deformed in the machining or heat treatment process, and the parts which are bent and deformed bring a plurality of influences to the next finishing process. In order to obtain the minimum cutting amount allowed by the next working procedure, reduce waste parts, improve the yield, save the cost of processing and raw materials and ensure that the workpiece meets strict final design tolerance requirements, an automatic straightener becomes an indispensable key device after heat treatment of the product.
The traditional straightening machine usually adopts a center to clamp a workpiece, and because the curvature of the workpiece is uneven, larger jumping degree can be generated during processing, and meanwhile, the center is responsible for driving the workpiece to rotate, so that the straightening machine is not flexible enough.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a combined mechanism of a pressing point and a supporting point, which is applied to a straightening machine, so as to reduce the influence of jumping degree and improve the stability and the efficiency of the straightening machine.
Therefore, the invention provides a pressing point and fulcrum combination mechanism applied to a straightening machine, which comprises a left bracket, an auxiliary driving motor, a pair of rotary top shafts for axially supporting shaft workpieces, a plurality of anvils for vertically supporting the shaft workpieces, and a friction wheel driving mechanism.
The friction wheel driving mechanism comprises a friction wheel driving mechanism main body, a round table type friction wheel arranged at one end of the friction wheel driving mechanism main body and a pinch roller driving motor used for driving the round table type friction wheel to rotate; the radial driving motor is arranged on the outer side of the friction wheel driving mechanism main body in the horizontal direction and is used for driving the friction wheel driving mechanism main body to rotate, so that the round table type friction wheel is close to and drives the shaft workpiece to circumferentially rotate.
The auxiliary driving motor is arranged at one end of the left bracket and is in transmission connection with a rotary top shaft arranged on the left bracket, and is used for assisting the driving shaft workpieces to rotate circumferentially; the rotary top shaft on the right side of the shaft workpiece is connected with the air cylinder, and the shaft workpiece is clamped or loosened through the telescopic action of the air cylinder; and a pressing head is arranged above the anvil and used for straightening and straightening the shaft workpiece.
Further, a measuring device is arranged on one side of the shaft workpiece in the horizontal direction, and the measuring device is provided with a displacement sensor and is used for detecting the surface runout condition of the measured point position of the workpiece; the auxiliary driving motor is provided with a pulse encoder electrically connected with the auxiliary driving motor, and the pulse encoder is used for precisely controlling the circumferential rotation phase of the shaft workpiece so that the direction of the maximum bending point of the shaft workpiece is vertical upwards.
Further, the friction wheel driving mechanism main body is arranged above the left bracket, and the axial direction of the radial driving motor is perpendicular to the axial direction of the friction wheel driving mechanism main body and is used for driving the friction wheel driving mechanism main body to rotate relative to the left bracket, so that the round table type friction wheel is close to and drives the shaft workpiece to circumferentially rotate.
Further, the anvil is arranged at the lower side of the shaft workpiece, and at least three anvils are arranged for supporting the shaft workpiece along the vertical direction.
Further, the anvil has an anvil head and a cylinder for driving the anvil head to move up and down.
Further, the pinch roller driving motor is in transmission connection with the round table type friction wheel through a speed reducer.
The combined mechanism of the pressing point and the fulcrum, which is applied to the straightening machine, is developed aiming at the problems that no center clamps and friction wheel drives to meet working conditions and reduce the influence of jumping degree; the influence of the runout of the shaft workpiece is smaller during rotation, and the stable operation can be realized; the workpiece driving mechanism is characterized in that a round table type friction wheel drives the workpiece to rotate through static friction, and meanwhile, the whole driving mechanism can rotate in a plane between the axis of the workpiece and the ground, so that the driving effect on the workpiece is ensured. The bending device has the advantages of flexibility and strong adaptability, and can meet the requirements of workpieces with different bending conditions.
In a preferred embodiment, the reading of the degree of curvature of the workpiece is relatively accurate by controlling the anvil with a cylinder. Compared with the traditional gear or chain mode, the output force of the air cylinder is larger and more stable, the requirement on some use environments is not high, the air cylinder can work normally no matter in high-temperature operation or low-temperature operation, and the air cylinder has certain waterproof and dustproof performances, can adapt to a plurality of severe use environments, and is simple to install and convenient to operate.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic perspective view of a combined mechanism of a pressing point and a fulcrum, which is applied to a straightening machine, according to the present invention;
FIG. 2 is a schematic view of the forward direction structure of the combined mechanism of the pressing point and the fulcrum applied to the straightening machine;
FIG. 3 is a schematic top view of the combined mechanism of the pressing point and the fulcrum for the straightening machine according to the present invention;
FIG. 4 is a schematic side view of a combined pressure point and fulcrum mechanism for use with a straightener in accordance with the present invention;
fig. 5 is a schematic top view of a combination mechanism of a pressing point and a fulcrum according to another embodiment of the invention.
Description of the reference numerals
1. A pinch roller driving motor; 2. a friction wheel driving mechanism main body; 3. a radial drive motor; 4. round table type friction wheel; 5. a shaft-like workpiece; 6. an auxiliary driving motor; 7. a left bracket; 8. an anvil; 9. a rotary top shaft; 10. a pressure head; 11. a displacement sensor.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 5, the combined mechanism of the pressing point and the fulcrum applied to the straightening machine comprises a left bracket 7, an auxiliary driving motor 6, a pair of rotary top shafts 9 for axially supporting shaft workpieces 5, a plurality of anvils 8 for vertically supporting the shaft workpieces 5 and a friction wheel driving mechanism.
Specifically, the friction wheel driving mechanism includes a friction wheel driving mechanism body 2, a circular truncated cone type friction wheel 4 provided at one end of the friction wheel driving mechanism body 2, and a pinch roller driving motor 1 for driving the circular truncated cone type friction wheel 4 to rotate. The pinch roller driving motor 1 is a servo speed regulating motor, and the pinch roller driving motor 1 is in transmission connection with the round table type friction wheel 4 through a speed reducer and is used for driving the round table type friction wheel 4 to rotate.
The friction wheel driving mechanism main body 2 is arranged above the left bracket 7, a radial driving motor 3 is arranged on the outer side of the horizontal direction of the friction wheel driving mechanism main body 2, and the axial direction of the radial driving motor 3 is perpendicular to the axial direction of the friction wheel driving mechanism main body 2 and is used for driving the friction wheel driving mechanism main body 2 to rotate relative to the left bracket 7, so that the round table type friction wheel 4 is close to the shaft type workpiece 5, and then the shaft type workpiece 5 is driven to rotate circumferentially.
In this scheme, auxiliary drive motor 6 sets up in left socle 7 one end to with install the gyration top axle 9 transmission connection on left socle 7, be used for assisting drive shaft class work piece 5 circumference rotation. The rotary top shaft 9 on the right side of the shaft workpiece 5 is connected with a cylinder, and the shaft workpiece 5 is clamped or loosened by the telescopic action of the cylinder; the auxiliary driving motor 6 is electrically connected with a pulse encoder, and the pulse encoder is used for precisely controlling the circumferential rotation phase of the shaft workpiece 5 and providing reference data for the alignment work of the shaft workpiece 5.
As shown in fig. 3 and 5, the anvil 8 is arranged at the lower side of the shaft workpiece 5, and at least three anvils are arranged for supporting the shaft workpiece 5 along the vertical direction; the anvil 8 is provided with an anvil head and an air cylinder for driving the anvil head to move up and down, and the anvil head can move up and down so as to approach or depart from the shaft workpiece 5; meanwhile, the anvil heads on the anvil 8 can be replaced according to the diameter of the shaft workpiece 5.
As shown in fig. 3, the shaft-like workpiece 5 is provided with a measuring device on one side in the horizontal direction, and a displacement sensor 11 is provided therein for detecting a surface runout condition (TIR value) of the workpiece at the measured point position.
As shown in fig. 2, a pressing head 10 for straightening and straightening the shaft workpiece 5 is arranged above the anvil 8, the pressing head 10 is connected with a hydraulic cylinder, and the hydraulic cylinder executes linear motion to drive the pressing head 10 to downwards press the shaft workpiece 5, so that the shaft workpiece 5 is straightened and straightened.
Compared with centre clamping, the invention adopts a non-centre mode, and the clamping ground is firmer because the contact surface with the shaft workpiece is bigger; the influence of the runout of the shaft workpiece is smaller during rotation, and the stable operation can be realized; the workpiece driving mechanism is characterized in that a round table type friction wheel drives the workpiece to rotate through static friction, and meanwhile, the whole driving mechanism can rotate in a plane between the axis of the workpiece and the ground, so that the driving effect on the workpiece is ensured. The bending device has the advantages of flexibility and strong adaptability, and can meet the requirements of workpieces with different bending conditions.
The invention adopts the air cylinder to control the anvil, and the reading of the bending degree of the workpiece is more accurate. Compared with the traditional gear or chain mode, the output force of the air cylinder is larger and more stable, the requirement on some use environments is not high, the air cylinder can work normally no matter in high-temperature operation or low-temperature operation, and the air cylinder has certain waterproof and dustproof performances, can adapt to a plurality of severe use environments, and is simple to install and convenient to operate.
The working flow of the pressing point and supporting point combined mechanism applied to the straightening machine is briefly described below with reference to the accompanying drawings:
when the operator places the workpiece in the positioning support position on the work table of the automatic straightening machine and presses the automatic start button, the straightening machine enters the automatic straightening circulation process.
Firstly, a cylinder executes linear motion to drive rotary top shafts 9 at two sides to advance, a shaft workpiece 5 is clamped and positioned to measure a reference, the shaft workpiece 5 adopts excircle positioning, and a radial driving motor 3 executes rotary motion to drive a circular truncated cone type friction wheel 4 to descend; meanwhile, the pinch roller driving motor 1 drives the speed reducer to rotate and drives the workpiece and the pulse encoder to rotate.
A measuring device of a constant contact mode, which detects the surface runout condition (TIR value) of the measured point position of the workpiece, and measures the data of the surface runout condition by a differential transformer type displacement sensor 11 with small signal amplification function; the detected data and the phase data acquired by the pulse encoder are transmitted to a computer data acquisition system at the same time, and the computer detects the data according to the bending condition of the shaft workpiece 5 and gives out straightening correction control parameters after processing by a measurement and control system.
Then, the PLC controls the pinch roller driving motor 1 to drive the round table type friction wheel 4 to enable the direction of the maximum bending point of the workpiece to be vertical upwards, and finally, the hydraulic cylinder executes linear motion to drive the pressure head 10 to press the workpiece, so that one straightening cycle is completed.
After the secondary measurement, if the straightness of the workpiece meets the requirement, the straightening machine finishes the straightening cycle and gives out an audible and visual alarm signal, and if the straightness is still not qualified, the straightening cycle process is continuously executed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The pressing point and fulcrum combination mechanism applied to the straightening machine is characterized by comprising a left bracket (7), an auxiliary driving motor (6), a pair of rotary top shafts (9) for axially supporting shaft workpieces (5), a plurality of anvils (8) for vertically supporting the shaft workpieces (5) and a friction wheel driving mechanism;
the friction wheel driving mechanism comprises a friction wheel driving mechanism main body (2), a round table type friction wheel (4) arranged at one end of the friction wheel driving mechanism main body (2), and a pinch wheel driving motor (1) for driving the round table type friction wheel (4) to rotate; a radial driving motor (3) is arranged on the outer side of the friction wheel driving mechanism main body (2) in the horizontal direction, and the radial driving motor (3) is used for driving the friction wheel driving mechanism main body (2) to rotate so that the round table type friction wheel (4) is close to and drives the shaft type workpiece (5) to circumferentially rotate;
the auxiliary driving motor (6) is arranged at one end of the left bracket (7), and the auxiliary driving motor (6) is in transmission connection with a rotary top shaft (9) arranged on the left bracket (7) and is used for assisting the driving shaft workpieces (5) to rotate circumferentially; the rotary top shaft (9) on the right side of the shaft workpiece (5) is connected with the air cylinder, and the shaft workpiece (5) is clamped or loosened through the telescopic action of the air cylinder;
the upper part of the anvil (8) is provided with a pressing head (10) for straightening and straightening the shaft workpiece (5).
2. The combined mechanism of the pressing point and the supporting point applied to the straightening machine according to claim 1, wherein a measuring device is arranged on one side of the shaft workpiece (5) in the horizontal direction, and the measuring device is provided with a displacement sensor (11) for detecting the surface runout condition of the measured point position of the workpiece; the auxiliary driving motor (6) is provided with a pulse encoder electrically connected with the auxiliary driving motor, and the pulse encoder is used for precisely controlling the circumferential rotation phase of the shaft workpiece (5) so that the direction of the maximum bending point of the shaft workpiece (5) is vertically upward.
3. The combined mechanism of the pressing point and the supporting point applied to the straightening machine according to claim 1, wherein the friction wheel driving mechanism main body (2) is arranged above the left bracket (7), and the axial direction of the radial driving motor (3) is perpendicular to the axial direction of the friction wheel driving mechanism main body (2) and is used for driving the friction wheel driving mechanism main body (2) to rotate relative to the left bracket (7), so that the round table type friction wheel (4) is close to and drives the shaft type workpiece (5) to rotate circumferentially.
4. The combined pressing point and fulcrum mechanism for use in a straightening machine according to claim 1, characterized in that the anvil (8) is provided at the lower side of the shaft-like work piece (5), and at least three are provided for supporting the shaft-like work piece (5) in the vertical direction.
5. The combination of a pressing point and a fulcrum for a straightening machine according to claim 1, characterized in that the anvil (8) has an anvil head and a cylinder for driving the anvil head to move up and down.
6. The combined mechanism of the pressing point and the supporting point applied to the straightening machine according to claim 1, wherein the pressing wheel driving motor (1) is in transmission connection with the round table type friction wheel (4) through a speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289344.5A CN114130860B (en) | 2021-11-02 | 2021-11-02 | Be applied to pressure point and fulcrum combined mechanism on straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289344.5A CN114130860B (en) | 2021-11-02 | 2021-11-02 | Be applied to pressure point and fulcrum combined mechanism on straightener |
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| Publication Number | Publication Date |
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| CN114130860A CN114130860A (en) | 2022-03-04 |
| CN114130860B true CN114130860B (en) | 2023-07-28 |
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| CN202111289344.5A Active CN114130860B (en) | 2021-11-02 | 2021-11-02 | Be applied to pressure point and fulcrum combined mechanism on straightener |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117139424B (en) * | 2023-10-30 | 2024-01-23 | 上海狄兹精密机械有限公司 | Straightening machine and method for planetary roller screw rod machining |
| CN117324433B (en) * | 2023-11-01 | 2024-05-07 | 江苏瑞格高合金材料有限公司 | High-speed steel straightening instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09253963A (en) * | 1996-03-21 | 1997-09-30 | Ckd Corp | Clamp device and feeding device |
| CN107377678A (en) * | 2017-07-13 | 2017-11-24 | 长春机械科学研究院有限公司 | A kind of straightener and its with friction drive device |
| CN213381228U (en) * | 2020-10-19 | 2021-06-08 | 长春一汽富晟特必克制动有限公司 | Auxiliary positioning clamping tool for detecting hub assembly |
-
2021
- 2021-11-02 CN CN202111289344.5A patent/CN114130860B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09253963A (en) * | 1996-03-21 | 1997-09-30 | Ckd Corp | Clamp device and feeding device |
| CN107377678A (en) * | 2017-07-13 | 2017-11-24 | 长春机械科学研究院有限公司 | A kind of straightener and its with friction drive device |
| CN213381228U (en) * | 2020-10-19 | 2021-06-08 | 长春一汽富晟特必克制动有限公司 | Auxiliary positioning clamping tool for detecting hub assembly |
Non-Patent Citations (1)
| Title |
|---|
| 轴类校直机滚轮摩擦驱动的计算方法;杨永贺;李亚杰;赵占远;陈景光;兰平;;工程与试验(第01期);全文 * |
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| CN114130860A (en) | 2022-03-04 |
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