CN219562531U - High-speed high-precision linear motor driving cam grinding machine - Google Patents
High-speed high-precision linear motor driving cam grinding machine Download PDFInfo
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- CN219562531U CN219562531U CN202320338105.2U CN202320338105U CN219562531U CN 219562531 U CN219562531 U CN 219562531U CN 202320338105 U CN202320338105 U CN 202320338105U CN 219562531 U CN219562531 U CN 219562531U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to the technical field of camshaft processing equipment, and discloses a high-speed high-precision linear motor driving cam grinding machine, which comprises a base, wherein a cam is arranged on the base; a lateral movement mechanism disposed on the base; a longitudinal movement mechanism provided on the lateral movement mechanism; a grinding mechanism arranged on the longitudinal moving mechanism; the clamping mechanism is arranged on the base; the vertical moving mechanism comprises a vertical moving plate and a linear motor, the grinding mechanism is fixedly arranged on the upper surface of the vertical moving plate, the horizontal moving mechanism comprises a horizontal moving plate, two sides of the upper surface of the horizontal moving plate are respectively provided with a vertical electric sliding rail, two sides of the lower surface of the vertical moving plate are respectively provided with a clamping block, the linear motor comprises a rotor and a second stator, the second stator is fixedly arranged on the lower surface of the vertical moving plate, and the rotor is fixedly arranged on the upper surface of the horizontal moving plate. The utility model can solve the problems of low response speed and lower repeated positioning accuracy in the prior art that the servo motor is matched with the screw rod to drive the grinding wheel to perform grinding motion.
Description
Technical Field
The utility model relates to the technical field of cam shaft processing equipment, in particular to a high-speed high-precision linear motor driving cam grinding machine.
Background
The camshaft is widely applied to engines such as gasoline engines or diesel engines and is used for controlling the opening and closing of valves in a gas distribution system, and the quality of the processing quality of the camshaft directly determines the working performance of the engine.
The main method for producing the camshaft at home and abroad comprises the following steps: the method adopts a process that after the steel forging blank is cut, the cam peach point part is subjected to high-frequency quenching to form a martensite layer. New camshaft argon arc remelting technology is developed in Germany and France successively at the end of the 70 th century; in addition, the hardenable cast iron camshaft mainly used in the United states; chilled cast iron camshafts mainly in japan and france; cam shafts such as those produced by alloying the surface of a casting with a Cr-Mn-Mo alloy coating are generally cast by a die.
The surface of the cast camshaft is generally rough, but the camshaft runs at a high speed in an engine, so the roughness requirement is very high, the grinding finish machining of the camshaft is usually carried out by a numerical control camshaft grinding machine at present, the camshaft is placed in a clamping mechanism of the grinding machine during grinding, a workpiece is driven to rotate by the clamping mechanism, and the camshaft meeting the requirement is machined by linkage of the feeding motion of a grinding feeding mechanism and the high-speed rotation of a grinding wheel and the rotation motion of the workpiece.
The Chinese utility model patent [ publication No.: CN113618558A discloses a high-precision high-speed follow-up camshaft grinder, which solves the problems that the camshaft grinder in the prior art cannot stably clamp and flexibly process a camshaft, and the position precision is insufficient when the grinding wheel is used for position adjustment.
However, in the subsequent use process, the servo motor is matched with the screw rod to drive the grinding wheel to finish grinding feeding movement and the mode of retreating movement after feeding grinding is finished is found to have the problems of low response speed and lower repeated positioning accuracy.
Disclosure of Invention
In view of the above, the utility model aims to provide a high-speed high-precision linear motor driven cam grinding machine, which solves the problems of low response speed and lower repeated positioning precision caused by grinding motion of a servo motor matched with a screw rod to drive a grinding wheel in the prior art.
The utility model solves the technical problems by the following technical means:
a high-speed high-precision linear motor driven cam grinder, comprising:
a base;
a lateral movement mechanism disposed on the base;
a longitudinal movement mechanism provided on the lateral movement mechanism;
a grinding mechanism arranged on the longitudinal moving mechanism;
the clamping mechanism is arranged on the base;
the vertical moving mechanism comprises a vertical moving plate and a linear motor, the grinding mechanism is fixedly arranged on the upper surface of the vertical moving plate, the transverse moving mechanism comprises a transverse moving plate, two sides of the upper surface of the transverse moving plate are respectively provided with a vertical electric sliding rail, two sides of the lower surface of the vertical moving plate are respectively provided with a clamping block, the clamping blocks are slidably clamped on the vertical electric sliding rails, the linear motor comprises a rotor and a second stator, the second stator is fixedly arranged on the lower surface of the vertical moving plate, and the rotor is positioned between the two vertical electric sliding rails and is fixedly arranged on the upper surface of the transverse moving plate.
Further, fixture includes headstock and tailstock, the headstock includes casing, step shaft and first motor, be provided with the cavity in the casing, the step shaft rotates to be installed in the cavity, first motor fixed mounting is in the cavity, first motor is connected with step shaft transmission.
Further, the oil filling hole is formed in the shell and is communicated with the cavity, and the head cover and the tail cover for sealing the cavity are fixedly mounted at two ends of the shell respectively.
Further, the through hole is formed in the tail cover, one end of the stepped shaft is rotatably arranged in the through hole, a round grating is fixedly arranged at the position of the through hole on the tail cover, a round grating reading head is fixedly arranged on the tail seat, a linear grating is fixedly arranged on one side of the longitudinal moving plate, and a linear grating reading head is fixedly arranged on the transverse moving plate.
Further, the first motor comprises a stator, a rotor and a mounting seat, wherein the mounting seat is fixedly connected with the shell, the stator is fixedly connected with the mounting seat, the rotor is fixedly connected with the stepped shaft, a bearing is arranged on the mounting seat, the outer ring of the bearing is fixedly connected with the mounting seat, and the inner ring of the bearing is fixedly connected with the stepped shaft.
Further, a center is fixedly arranged at one end of the stepped shaft, and a driving block mounting groove is formed in the end face of the stepped shaft.
Further, the grinding mechanism comprises a second motor, a main shaft fixing box, a grinding wheel and a driving belt, wherein the second motor and the main shaft fixing box are fixedly arranged on the longitudinal moving plate, the main shaft is rotatably arranged in the main shaft fixing box, the grinding wheel is fixedly arranged at the transmission output end of the main shaft, and the driving belt is tensioned between the transmission input end of the main shaft and the transmission output end of the second motor.
Further, the transverse moving mechanism further comprises a transverse driving assembly, the transverse driving assembly comprises a third motor and a screw rod, the third motor is fixedly arranged on the base, the screw rod is rotatably arranged on the base, an output shaft of the third motor is connected with the screw rod in a transmission manner, a limiting sliding rail is arranged on the base, the transverse moving plate is slidably clamped on the limiting sliding rail, and a moving block is fixedly arranged at the bottom of the transverse moving plate and is in threaded connection with the screw rod.
The utility model has the beneficial effects that:
1. the utility model drives the grinding wheel to perform grinding feeding movement by arranging the linear motor, has high response speed, and can effectively improve the repeated positioning accuracy of grinding wheel feeding by arranging the circular grating, the circular grating reading head, the linear grating and the linear grating reading head.
2. According to the utility model, the first motor is arranged in the cavity of the shell, and the oil is injected into the cavity through the oil injection hole, so that the first motor is cooled, the high-strength continuous operation of the first motor is ensured, the shutdown cooling caused by overheat of the first motor is avoided, and the grinding efficiency is ensured.
Drawings
FIG. 1 is a schematic diagram of a high-speed high-precision linear motor driven cam grinder according to the present utility model;
FIG. 2 is a schematic diagram of a high-speed high-precision linear motor driven cam grinder according to the second embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of a headstock in a high speed, high precision linear motor driven cam grinder of the present utility model;
FIG. 4 is a schematic cross-sectional view of a headstock in a high speed, high precision linear motor driven cam grinder according to the present utility model;
FIG. 5 is a schematic view of the installation of a grinding mechanism in a high-speed high-precision linear motor driven cam grinder of the present utility model;
FIG. 6 is a schematic diagram of the mounting structure of a second stator in a high-speed high-precision linear motor driven cam grinder according to the present utility model;
FIG. 7 is a schematic view of the bottom structure of a laterally moving plate in a high speed, high precision linear motor driven cam grinder of the present utility model;
the device comprises a base 1, a limit sliding rail 11, a transverse moving plate 21, a moving block 211, a longitudinal electric sliding rail 212, a transverse driving component 22, a third motor 221, a screw rod 222, a longitudinal moving plate 31, a clamping block 311, a linear motor 32, a rotor 321, a second stator 322, a second motor 41, a main shaft 42, a main shaft fixing box 43, a grinding wheel 44, a driving belt 45, a headstock 51, a shell 511, a stepped shaft 512, a first motor 513, a head cover 514, a tail cover 515, a tail seat 52, a first stator 531, a rotor 532, a mounting seat 533, a bearing 534, a sealing ring 535, a center 54, a cavity 6, an oil filling hole 61, a circular grating 71, a circular grating reading head 72, a linear grating 73 and a linear grating reading head 74.
Detailed Description
The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration, and should not be construed as limiting the present utility model, and that the specific meanings used above may be understood by those of ordinary skill in the art according to circumstances.
As shown in fig. 1 to 7, a high-speed high-precision linear motor driving cam grinding machine of the present utility model includes:
the base 1 is used for installing a transverse moving mechanism, a longitudinal moving mechanism, a grinding mechanism and a clamping mechanism;
the movable transverse moving mechanism is arranged on the base 1 and is used for driving the longitudinal moving mechanism to move so that the grinding mechanism moves along the axial direction of the camshaft, so that different axial positions of the camshaft can be ground;
the longitudinal moving mechanism is arranged on the transverse moving mechanism and is used for driving the grinding mechanism to perform grinding and feeding movement and backing movement after feeding and grinding are completed;
the grinding mechanism is arranged on the longitudinal moving mechanism and is used for grinding the cam shaft;
the clamping mechanism is arranged on the base 1 and is used for clamping the cam shaft and driving the cam shaft to rotate so as to grind the grinding wheel 44;
the longitudinal moving mechanism includes a longitudinal moving plate 31 and a linear motor 32, and the linear motor 32 is fixedly connected to the lower surface of the longitudinal moving plate 31. The grinding mechanism is fixedly arranged on the upper surface of the longitudinal moving plate 31, and when the linear motor 32 works, the longitudinal moving plate 31 and the grinding mechanism on the longitudinal moving plate 31 can be driven to move so that the grinding wheel 44 can feed and grind.
The transverse moving mechanism comprises a transverse moving plate 21 and a transverse driving assembly 22, the transverse driving assembly 22 comprises a third motor 221 and a screw rod 222, the third motor 221 is fixedly arranged on the base 1, the screw rod 222 is rotatably arranged on the base 1, an output shaft of the third motor 221 is in transmission connection with the screw rod 222, a limiting sliding rail 11 is arranged on the base 1, the transverse moving plate 21 is slidably clamped on the limiting sliding rail 11, a moving block 211 is fixedly arranged at the bottom of the transverse moving plate 21, and the moving block 211 is in threaded connection with the screw rod 222. The third motor 221 works to drive the screw rod 222 to rotate, namely the moving block 211 drives the transverse moving plate 21 to move, so that the longitudinal moving mechanism is driven to move.
The both sides of lateral shifting board 21 upper surface all fixed mounting have vertical electric slide rail 212, and the both sides of longitudinal shifting board 31 lower surface all are provided with fixture block 311, and fixture block 311 slip card is located on the vertical electric slide rail, and linear electric motor 32 includes active cell 321 and second stator 322, and second stator 322 fixed mounting is in the lower surface of longitudinal shifting board 31, and active cell 321 is located between two vertical electric slide rails 212 and fixed mounting is in the upper surface of lateral shifting board 21. In the present embodiment, the mover 321 is fixedly mounted on the laterally moving plate 21 by a fixing bolt. In this embodiment, the second stator 322 is a ferromagnetic member. When the linear motor 32 works, the magnetic pole arrangement in the rotor 321 is changed, so that pushing force or pulling force is generated, and the second stator 322 drives the longitudinal moving plate 31 to reciprocate. The specific principle is fully disclosed in the prior art and is not repeated.
The clamping mechanism comprises a headstock 51 and a tailstock 52, in this embodiment, the headstock 51 and the tailstock 52 are fixedly installed on the base 1, and when the camshaft is clamped, the telescopic sleeve on the tailstock 52 pushes the center 54 on the tailstock 52 to fix the camshaft between the headstock 51 and the tailstock 52, so that the camshaft is prevented from moving axially. The structure of the tailstock 52 is well known in the art and will not be described in detail.
In this embodiment, the head frame 51 includes a housing 511, a stepped shaft 512, and a first motor 513, and the housing 511 is fixedly mounted on a mounting table of the base 1. A cavity 6 is arranged in the shell 511, the stepped shaft 512 is rotatably arranged in the cavity 6, the first motor 513 is fixedly arranged in the cavity 6, and the first motor 513 is in transmission connection with the stepped shaft 512. The casing 511 is provided with an oil filling hole 61, the oil filling hole 61 is communicated with the cavity 6, and a head cover 514 and a tail cover 515 for sealing the cavity 6 are fixedly arranged at two ends of the casing 511 respectively. Through setting up first motor 513 in cavity 6 to dispel the heat to first motor 513 through the oily cold mode, effectively guarantee that first motor 513 can high strength's continuous operation, avoid shutting down the cooling because of first motor 513 is overheated, guarantee grinding efficiency.
A through hole is formed in the tail cover 515, one end of the stepped shaft 512 is rotatably arranged in the through hole, a circular grating 71 is fixedly arranged at the through hole of the tail cover 515, a circular grating reading head 72 is fixedly arranged on the tail seat 52, a linear grating 73 is fixedly arranged on one side of the longitudinal moving plate 31, and a linear grating reading head 74 is fixedly arranged on the transverse moving plate 21. By arranging the circular grating 71 and the circular grating reading head 72, the rotation angle of the cam shaft can be accurately positioned, and the processing precision of the cam shaft is ensured. By the linear grating 73 and the linear grating readhead 74, the accuracy of repeated positioning of the feeding of the grinding wheel 44 can be effectively improved.
The first motor 513 includes a first stator 531, a rotor 532, and a mounting base 533, the mounting base 533 is fixedly connected with the housing 511, the first stator 531 is fixedly connected with the mounting base 533, the rotor 532 is fixedly connected with the stepped shaft 512, a bearing 534 is provided on the mounting base 533, an outer ring of the bearing 534 is fixedly connected with the mounting base 533, and an inner ring of the bearing 534 is fixedly connected with the stepped shaft 512. A drive connection of the first motor 513 to the stepped shaft 512 is achieved. In this embodiment, a sealing ring 535 is provided in the area between the stepped shaft 512, the bearing 534 and the head cover 514, so as to ensure the sealing effect of the cavity 6.
One end of the stepped shaft 512 is fixedly provided with a center 54 which is matched with the center 54 on the tailstock 52, so that the camshaft is clamped firmly. The end face of the stepped shaft 512 is provided with a driving block mounting groove for mounting a driving block, the specific structure of the driving block is disclosed in the prior art, the driving block is connected between the stepped shaft 512 and the cam shaft, and the stepped shaft 512 can smoothly drive the cam shaft to rotate through the driving block.
In this embodiment, the grinding mechanism includes a second motor 41, a spindle 42, a spindle fixing case 43, a grinding wheel 44, and a transmission belt 45, where the second motor 41 and the spindle fixing case 43 are fixedly mounted on the longitudinally moving plate 31, the spindle 42 is rotatably mounted in the spindle fixing case 43, the grinding wheel 44 is fixedly mounted at a transmission output end of the spindle 42, and the transmission belt 45 is tensioned between a transmission input end of the spindle 42 and a transmission output end of the second motor 41. When the second motor 41 is operated, the grinding wheel 44 is driven to rotate by the driving belt 45 and the main shaft 42, so that the cam shaft is ground.
The application method of the utility model is as follows:
before grinding the camshaft, the camshaft is fixed to the grinding machine by a clamping mechanism (i.e., a headstock 51 and a tailstock 52).
When the camshaft is grinded, the third motor 221 works to drive the screw rod 222 to rotate, and the screw rod 222 drives the transverse moving plate 21 to transversely move through the moving block 211, so that the grinding wheel 44 moves along the axial direction of the camshaft until the grinding wheel moves to a position where grinding is required. Meanwhile, the first motor 513 is operated to drive the stepped shaft 512 to rotate, and the stepped shaft 512 drives the cam shaft to rotate through the driving block, so that the side of the cam shaft to be rotated is opposite to the grinding wheel 44.
Subsequently, the linear motor 32 operates to drive the longitudinally moving plate 31 to move, driving the grinding wheel 44 to feed the grinding cam shaft.
In the grinding process, the rotation angle of the first motor 513 is controlled by the circular grating 71 and the circular grating reading head 72, and the moving distance of the linear motor 32 is controlled by the linear grating 73 and the linear grating reading head 74, so that the machining precision of the cam shaft is improved.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.
Claims (8)
1. A high-speed high-precision linear motor driven cam grinder, comprising:
a base;
a lateral movement mechanism disposed on the base;
a longitudinal movement mechanism provided on the lateral movement mechanism;
a grinding mechanism arranged on the longitudinal moving mechanism;
the clamping mechanism is arranged on the base;
the method is characterized in that:
the vertical moving mechanism comprises a vertical moving plate and a linear motor, the grinding mechanism is fixedly arranged on the upper surface of the vertical moving plate, the transverse moving mechanism comprises a transverse moving plate, two sides of the upper surface of the transverse moving plate are respectively provided with a vertical electric sliding rail, two sides of the lower surface of the vertical moving plate are respectively provided with a clamping block, the clamping blocks are slidably clamped on the vertical electric sliding rails, the linear motor comprises a rotor and a second stator, the second stator is fixedly arranged on the lower surface of the vertical moving plate, and the rotor is positioned between the two vertical electric sliding rails and is fixedly arranged on the upper surface of the transverse moving plate.
2. The high-speed high-precision linear motor driven cam grinding machine according to claim 1, wherein: the clamping mechanism comprises a headstock and a tailstock, the headstock comprises a shell, a stepped shaft and a first motor, a cavity is arranged in the shell, the stepped shaft is rotatably arranged in the cavity, the first motor is fixedly arranged in the cavity, and the first motor is in transmission connection with the stepped shaft.
3. The high-speed high-precision linear motor driven cam grinding machine according to claim 2, wherein: the shell is provided with an oil filling hole, the oil filling hole is communicated with the cavity, and the two ends of the shell are respectively and fixedly provided with a head cover and a tail cover for sealing the cavity.
4. A high-speed high-precision linear motor driven cam grinding machine according to claim 3, characterized in that: the tail cover is provided with a through hole, one end of the stepped shaft is rotatably arranged in the through hole, the tail cover is fixedly provided with a circular grating at the through hole, the tail seat is fixedly provided with a circular grating reading head, one side of the longitudinal moving plate is fixedly provided with a linear grating, and the transverse moving plate is fixedly provided with a linear grating reading head.
5. The high-speed high-precision linear motor driven cam grinding machine according to claim 2, wherein: the first motor comprises a stator, a rotor and a mounting seat, wherein the mounting seat is fixedly connected with the shell, the stator is fixedly connected with the mounting seat, the rotor is fixedly connected with the stepped shaft, a bearing is arranged on the mounting seat, the outer ring of the bearing is fixedly connected with the mounting seat, and the inner ring of the bearing is fixedly connected with the stepped shaft.
6. The high-speed high-precision linear motor driven cam grinding machine according to claim 2, wherein: one end of the stepped shaft is fixedly provided with a center, and the end face of the stepped shaft is provided with a driving block mounting groove.
7. The high-speed high-precision linear motor driven cam grinding machine according to claim 1, wherein: the grinding mechanism comprises a second motor, a main shaft fixing box, a grinding wheel and a driving belt, wherein the second motor and the main shaft fixing box are fixedly arranged on a longitudinal moving plate, the main shaft is rotatably arranged in the main shaft fixing box, the grinding wheel is fixedly arranged at a transmission output end of the main shaft, and the driving belt is tensioned between a transmission input end of the main shaft and a transmission output end of the second motor.
8. The high-speed high-precision linear motor driven cam grinding machine according to claim 1, wherein: the transverse moving mechanism further comprises a transverse driving assembly, the transverse driving assembly comprises a third motor and a screw rod, the third motor is fixedly arranged on the base, the screw rod is rotatably arranged on the base, an output shaft of the third motor is connected with the screw rod in a transmission mode, a limiting sliding rail is arranged on the base, the transverse moving plate is slidably clamped on the limiting sliding rail, and a moving block is fixedly arranged at the bottom of the transverse moving plate and is in threaded connection with the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338105.2U CN219562531U (en) | 2023-02-28 | 2023-02-28 | High-speed high-precision linear motor driving cam grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320338105.2U CN219562531U (en) | 2023-02-28 | 2023-02-28 | High-speed high-precision linear motor driving cam grinding machine |
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| Publication Number | Publication Date |
|---|---|
| CN219562531U true CN219562531U (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320338105.2U Active CN219562531U (en) | 2023-02-28 | 2023-02-28 | High-speed high-precision linear motor driving cam grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219562531U (en) |
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2023
- 2023-02-28 CN CN202320338105.2U patent/CN219562531U/en active Active
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Assignee: Zhejiang Gaohe Precision Machinery Co.,Ltd. Assignor: ZHEJIANG BOXING INDUSTRY AND TRADE Co.,Ltd. Contract record no.: X2023980042205 Denomination of utility model: A high-speed and high-precision linear motor driven cam grinder Granted publication date: 20230822 License type: Common License Record date: 20230922 |