CN114850995A - Double-ended grinding machine - Google Patents
Double-ended grinding machine Download PDFInfo
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- CN114850995A CN114850995A CN202210579037.9A CN202210579037A CN114850995A CN 114850995 A CN114850995 A CN 114850995A CN 202210579037 A CN202210579037 A CN 202210579037A CN 114850995 A CN114850995 A CN 114850995A
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- feeding
- feeding turntable
- pressing
- assembly
- driving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention provides a double-ended grinding machine which comprises a base, wherein two grinding discs, a feeding assembly, a feeding turntable and a motor for driving the feeding turntable to rotate are arranged on the base; a plurality of mounting grooves are concavely arranged on the circumferential outer wall of the feeding turntable, a compression component is assembled on one side of the mounting groove in the width direction, and the compression component can stretch along the width direction of the mounting groove; so that a workpiece positioning channel with adjustable width is formed between the pressing surface of the pressing component and the other side of the width direction of the mounting groove; the feeding turntable is also connected with a driving assembly, and when the motor drives the feeding turntable to rotate circumferentially to different set positions, the driving assembly is used for driving the pressing assembly to move in an extending mode or in a retracting mode so as to clamp or loosen a workpiece. The invention provides a double-ended grinding machine, wherein a grinding channel for conveying workpieces on a feeding mechanism one by one between two grinding discs is additionally arranged between the two grinding discs, and the workpiece is stably and efficiently clamped.
Description
Technical Field
The invention relates to the technical field of grinding equipment, in particular to a double-ended grinding machine.
Background
The magnetic steel is mainly used in the fields of various sensors, instruments, electronics, electromechanics, medical treatment, teaching, automobiles, aviation, military technology and the like, and the magnetic performance of the magnetic steel is different according to different metal components of the magnetic steel, so that the magnetic steel has different purposes.
At present, the magnetic steel is produced and manufactured by adopting a powder metallurgy method, and is ground and processed by a grinding device after the production is finished; grinding is the most common and widely used machining method in all machining processes, and the surfaces or edges of many workpieces need to be ground into the required designed shapes, such as chamfering, rounding or irregular plane grinding of the edges of metal parts.
The processing to the magnet steel among the two-sided abrasive machining equipment of current magnet steel need adopt dedicated anchor clamps to carry out manual clamping usually, then puts it and carries out the two-sided of magnet steel and polish in putting the grinding passageway between two mill, and a work piece is polished and is accomplished the back, lift it off, then carries out the clamping of next work piece, polishes, and the processing mode needs to set up the workman of clamping, unloading specially like this, leads to manpower resources waste, and is inefficient.
Disclosure of Invention
The invention solves the problem that in order to overcome the defects in the prior art, the invention provides the double-ended grinding machine, a grinding channel for conveying workpieces on a feeding mechanism one by one between grinding discs is additionally arranged between the two grinding discs, and the clamping of the workpieces is stable and efficient.
In order to solve the problems, the invention provides a double-ended grinding machine which comprises a base, wherein two grinding discs which are arranged at intervals and symmetrically are arranged on the base, a feeding assembly, a feeding turntable and a motor for driving the feeding turntable to rotate are further arranged on the base, and the feeding turntable is used for conveying workpieces on the feeding assembly to between the two grinding discs one by one for grinding; a plurality of mounting grooves are concavely arranged on the circumferential outer wall of the feeding turntable, a compression component is assembled on one side of the mounting groove in the width direction, and the compression component can stretch along the width direction of the mounting groove; so that a workpiece positioning channel with adjustable width is formed between the pressing surface of the pressing component and the other side of the width direction of the mounting groove; the feeding turntable is further connected with a driving assembly, and when the motor drives the feeding turntable to rotate circumferentially to different set positions, the driving assembly is used for driving the pressing assembly to move in an extending mode or in a retracting mode so as to clamp or loosen a workpiece.
Compared with the prior art, the double-ended grinding machine has the following advantages:
in the grinding machine structure, the feeding assembly special for feeding the workpieces is arranged on the base and used for realizing automatic feeding of the magnetic steel, so that the conventional manual feeding is replaced, the labor force is saved, and the efficiency is improved; in addition, a rotary feeding turntable is arranged between the two grinding discs, a plurality of mounting grooves are formed in the peripheral wall of the feeding turntable, a pressing component is arranged in each mounting groove, the pressing components are driven to stretch and retract by combining with corresponding driving components through the rotation of the feeding turntable, and the width of a workpiece positioning channel for positioning a workpiece in each mounting groove is adjusted, so that the workpiece is stably clamped or loosened; the whole machining process is high in automation degree, manual participation is not needed in the whole process, the consistency of workpiece positioning and grinding is guaranteed, and the efficiency is high.
Furthermore, the pressing assembly comprises a first pressing block and a second pressing block which are arranged from outside to inside along the depth direction of the installation groove, and a first connecting rod and a second connecting rod which are hinged in a crossed mode and have equal length; one end of the first connecting rod is hinged with the second pressing block, the other end of the first connecting rod is hinged with the side wall of the mounting groove, one end of the second connecting rod is hinged with the first pressing block, the other end of the second connecting rod is hinged with a driving rod which can move along the radial direction of the feeding turntable, and one end of the driving rod, far away from the second connecting rod, is in transmission connection with the driving assembly; when the driving assembly drives the driving rod to do telescopic motion along the radial direction, the first pressing block and the second pressing block are close to or far away from the corresponding side wall in the mounting groove synchronously.
As an improvement, one end of the first pressing block close to the second pressing block is connected with a guide rod, and the second pressing block is provided with a guide hole for the guide rod to be in sliding fit. In the above-mentioned improvement structure, the setting up of guide bar and guiding hole can be guaranteed under the driving action of actuating lever, and the motion of first briquetting and second briquetting in the mounting groove has better synchronism, guarantees the stationarity that compresses tightly to the work piece promptly.
In another improvement, one end of the center of the feeding turntable is in transmission connection with an output shaft of the motor, the other end of the center of the feeding turntable is connected with a positioning seat, the positioning seat is fixed on the base, and the feeding turntable and the positioning seat can rotate relatively; the positioning seat is connected with a cam disc which is arranged in parallel with the feeding turntable, and one end of the driving rod, which is far away from the second connecting rod, is abutted against the outer side wall of the cam disc.
The feeding turntable is provided with a plurality of mounting holes which extend along the radial direction of the feeding turntable and correspond to the mounting grooves one by one, and each driving rod is assembled in the corresponding mounting hole in a sliding manner; and a containing groove for containing the cam disc is formed in one side, close to the positioning seat, of the feeding turntable, and the outer wall of the cam disc and the inner wall of the containing groove can rotate relatively. In the improved structure, the arrangement of the mounting hole and the accommodating groove enables the cam plate to move flexibly and stably relative to the driving rod.
In a further improvement, one end of each driving rod, which is far away from the second connecting rod, is connected with an arc-shaped lug, and an arc-shaped surface of each arc-shaped lug is abutted with the outer peripheral wall of the cam disc; a movable channel is arranged between the circumferential outer wall of the cam disc and the inner wall of the containing groove, and each arc-shaped lug is contained in the movable channel. In the improved structure, the arc-shaped lug structure is arranged, so that the telescopic motion of the driving rod is more flexible when the cam disc rotates; in addition, the arrangement of the movable channel provides a movable space for the operation of the arc-shaped lug.
In another improvement, the cam plate comprises a first circular ring and a second circular ring which have the same rotation center but different rotation radiuses, and two end parts of the first circular ring are connected with two end parts of the second circular ring through arc-shaped sections. In the improved structure, the first circular ring and the second circular ring with the same rotation center but different rotation radiuses form the cam disc, the structure is simple, and the initial action of the telescopic driving of the driving rod is accurately positioned.
And the improved structure is characterized in that a first positioning block and a second positioning block are respectively connected to the outer end and the inner end of the mounting hole along the radial direction, an adjusting locking block is connected to the outer part of one end, close to the cam disc, of the driving rod, and a reset spring is sleeved between the first positioning block and the adjusting locking block. After the structure is improved, the reset spring enables the driving rod to stretch and move freely, and in the rotating process of the feeding turntable, when one end of the driving rod close to the cam disc is switched from the outer end face of the large radius of the cam disc to the outer end face of the small radius, the driving rod can automatically reset to the initial position, so that the next workpiece can be clamped conveniently, and the working efficiency is improved.
And in the inner cavity of the mounting groove, one side far away from the pressing component is detachably connected with a positioning plate, and a workpiece positioning channel is formed between the positioning plate and the pressing surface of the pressing component. In the above-mentioned improvement structure, can realize the tight spacing of clamp of the work piece of different specifications through the locating plate of changing different thickness, improve the commonality, reduce cost.
Still further, the feeding assembly comprises a feeding conveyor belt, a first pushing assembly and a second pushing assembly, the first pushing assembly is used for pushing the workpieces on the feeding conveyor belt to a transfer position corresponding to the workpiece positioning channel, and the second pushing assembly is used for pushing the workpieces at the transfer position into the workpiece positioning channel. In the above-mentioned improved structure, make work piece material loading steady through unique design, accurate to so all be equipped with the work piece in the work piece location passageway on the pay-off carousel, the work piece location passageway that begins to rotate to the transfer position rotates to the transfer position once more when, the work piece of treating processing continues the propelling movement to this work piece location passageway when, has realized in step that the work piece that has already been processed in this work piece location passageway is pushed out to the unloading conveyer belt, simplifies whole grinding machine structure, makes its each actuating mechanism overall arrangement more reasonable.
Drawings
FIG. 1 is a schematic perspective view of a double-ended grinding machine of the present invention;
FIG. 2 is a schematic structural view of a feed turntable in the present invention;
FIG. 3 is a cross-sectional view of the feed rotor of FIG. 2;
FIG. 4 is an enlarged view of the structure at X in FIG. 2;
FIG. 5 is an enlarged view of the structure at Y in FIG. 3;
fig. 6 is a partial structural schematic view of the feeding assembly in the present invention.
Description of reference numerals:
1. a machine base; 2. a grinding disc; 3. a feeding turntable; 3.1, mounting holes; 3.2, a containing groove; 4. mounting grooves; 5. a workpiece positioning channel; 6. a first pressing block; 7. a second pressing block; 8. a first link; 9. a second link; 10. a drive rod; 11. positioning seats; 12. a cam plate; 12.1, a first circular ring; 12.2, a second circular ring; 13. an arc-shaped bump; 14. a movable channel; 15. a first positioning block; 16. a second positioning block; 17. adjusting the locking block; 18. a return spring; 19. a guide bar; 20. positioning a plate; 21. a feeding conveyor belt; 22. a first pusher assembly; 23. a second pusher assembly; 24. a blanking conveyor belt; 25. an automatic centering component; 26. a fixing plate; 27. a flexible cushion; 28. a connecting seat; 29. and (7) pressing a plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "outer end", "inner end", "front side", "rear side", "side wall", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the present invention provides a double-ended grinding machine, which comprises a machine base 1, wherein two grinding discs 2 which are arranged symmetrically and at intervals and a driving mechanism for driving the grinding discs 2 to run are arranged at the rear side of the middle position of the machine base 1, the driving mechanism mainly comprises a grinding motor and a speed reducer, wherein the center position of the grinding disc 2 is fixedly connected to an output shaft of the speed reducer, and the grinding disc 2 rotates along the front-back direction of the machine base 1; in addition, the machine base 1 is also provided with a feeding turntable 3, the feeding turntable 3 is driven by a motor and a corresponding speed reducing assembly and is rotationally arranged between the two grinding discs 2, the direction of the rotation axis of the feeding turntable 3 is parallel to the direction of the rotation axis of the two grinding discs 2, and the feeding turntable 3 and the two grinding discs 2 are at least partially overlapped in the direction of the rotation axis; a plurality of limiting parts for positioning workpieces are arranged on the circumferential outer wall of the feeding turntable 3, and when the feeding turntable 3 rotates along the axis direction of the feeding turntable, the workpieces on the limiting parts sequentially pass through a channel between the two grinding discs 2, so that double-sided processing of the workpieces is realized under the grinding action of the grinding discs 2 on the two sides; in the actual processing process, the allowance needed to be ground on the two sides of the workpiece is small, so when the feeding turntable 3 rotates to drive the workpiece to just start to reach the grinding channel between the two grinding discs 2, the two grinding discs 2 start to grind the allowance on the two sides of the workpiece 4, and the finished grinding process of one workpiece is finished until the feeding turntable 3 rotates to the point that the workpiece 4 which enters the grinding channel at the beginning is separated from the grinding channel.
As shown in fig. 2 and 4, in the embodiment, a plurality of mounting grooves 4 are concavely formed on the circumferential outer wall of the feeding turntable 3, a pressing component is assembled on one side of the mounting groove 4 in the width direction, and the pressing component can stretch along the width direction of the mounting groove 4; so that a workpiece positioning channel 5 with adjustable width is formed between the pressing surface of the pressing component and the other side of the width direction of the mounting groove 4, and the workpiece positioning channel 5 is the limiting part. In addition, the feeding turntable 3 is also connected with a driving assembly, and when the motor drives the feeding turntable 3 to circumferentially rotate to different set positions, the driving assembly is used for driving the pressing assembly to extend or retract so as to clamp or loosen a workpiece. The set positions mainly refer to a loading position and a clamping position, namely, when the feeding turntable 3 rotates, each workpiece positioning channel 5 sequentially passes through the loading position and the clamping position; the feeding position is a position where the workpiece positioning channel 5 rotates to a horizontal position and corresponds to a material pushing port of the feeding assembly, and when the position is reached, the pressing assembly retracts to an initial position, and the workpiece is in a loosening state; the clamping position is a position which forms a certain angle with the loading position, and the pressing component is in an extending state in the position, and the workpiece is in a clamping state. Namely, when a workpiece enters the corresponding workpiece positioning channel 5 on the feeding turntable 3 from the feeding port of the feeding assembly along the feeding position, the pressing assembly does not work, and when the feeding turntable 3 continues to rotate for a certain angle, the pressing assembly starts to press the side wall of the workpiece. The arrangement is mainly because the feeding turntable 3 is further provided with the corresponding automatic end face centering assembly 25 in the structure in the embodiment, and the automatic end face centering assembly 25 is arranged between the feeding position and the clamping position, so that a workpiece firstly enters the workpiece positioning channel 5, then passes through the position centering of the automatic end face centering assembly 25, and then is pressed and limited by the pressing assembly, and the double end faces of the workpiece can be accurately ground and machined to the set position when the workpiece after being clamped and limited is ground and machined by the middle channel of the two grinding discs 2. The automatic centering assembly 25 is a structure of a patent already related to the applicant, and specific references can be made to the patent: CN212946910U, which will not be described in detail herein.
As shown in fig. 4 and 5, the compressing assembly comprises a first pressing block 6 and a second pressing block 7 which are arranged from outside to inside along the depth direction of the mounting groove 4, and a first connecting rod 8 and a second connecting rod 9 which are hinged with each other in a crossed mode and have equal length; one end of the first connecting rod 8 is hinged with the second pressing block 7, and the other end of the first connecting rod 8 is hinged with the side wall of the mounting groove 4; specifically, a fixed plate 26 is connected to one side wall of the outer end of the mounting groove 4, and one end of the first connecting rod 8 is hinged to the fixed plate 26; correspondingly, one end of the second connecting rod 9 is hinged with the first pressing block 6, the other end of the second connecting rod 9 is hinged with a driving rod 10, the driving rod 10 can be movably connected along the radial direction of the feeding turntable 3, and one end, far away from the second connecting rod 9, of the driving rod 10 is in transmission connection with the driving assembly; when the driving component drives the driving rod 10 to do telescopic motion along the radial direction, the first pressing block 6 and the second pressing block 7 synchronously approach or depart from corresponding side walls in the mounting groove 4, and clamping or loosening of a workpiece is realized. In this embodiment, more specifically, one end of the first pressing block 6 close to the second pressing block 7 is connected with a guide rod 19, and the second pressing block 7 is provided with a guide hole for the guide rod 19 to be in sliding fit; after the arrangement, the first pressing block 6 and the second pressing block 7 can be ensured to have better synchronism in the mounting groove 4 under the driving action of the driving rod 10, namely, the stability of workpiece compression is ensured.
On the other hand, in the above structure, in order that the outer surface of the workpiece is not damaged when the first pressing block 6 and the second pressing block 7 press the workpiece, the outer side walls of the first pressing block 6 and the second pressing block 7 are both detachably connected with corresponding flexible cushion pads 27, preferably, the flexible cushion pads 27 are rubber cushion blocks, and each rubber cushion block is connected with the corresponding pressing block through the corresponding connecting seat 28; specifically, a plurality of connecting holes are formed in the end faces of the first pressing block 6 and the second pressing block 7 close to one side of the workpiece positioning channel 5, each connecting seat 28 is detachably fixed in the corresponding connecting hole through a connecting bolt, and in the structure, the connecting seats 28 can select corresponding connecting holes to be fixed according to actual application conditions; in addition, an inwards concave positioning groove is further formed in the outer side wall of each connecting seat 28, and the two rubber cushion blocks are accommodated and connected in the corresponding positioning grooves, so that better stability is guaranteed.
In addition, as shown in fig. 1 and 2, one end of the center position of the feeding turntable 3 is in transmission connection with an output shaft of a motor, the other end of the center position of the feeding turntable 3 is connected with a positioning seat 11, the positioning seat 11 is fixed on the base 1, and the feeding turntable 3 and the positioning seat 11 can rotate relatively, specifically, in this embodiment, the feeding turntable 3 can rotate circumferentially under the driving of the motor, and the positioning seat 11 is fixedly connected with the base 1 and is kept immovable; a cam disc 12 arranged in parallel with the feeding turntable 3 is connected to the positioning seat 11, and one end of the driving rod 10 far away from the second connecting rod 9 is abutted to the outer side wall of the cam disc 12. In the structure, because the driving rod 10 is assembled with the feeding turntable 3 in a sliding manner along the radial direction of the driving rod, and one end of the driving rod 10, which is far away from the first pressing block 6, is abutted against the outer wall of the cam disc 2, when the feeding turntable 3 rotates in the circumferential direction, the driving rod 10 rotates in the circumferential direction synchronously along with the driving rod, and when the driving rod 10 rotates integrally, the driving rod 10 can extend and retract along the radial direction of the feeding turntable 3 under the action of the outer end surfaces of the cam discs 12 with different rotating radiuses; the telescopic motion of the driving rod 10, in combination with the action of the first connecting rod 8 and the second connecting rod 9 which are hinged in a crossed manner, drives the first pressing block 6 and the second pressing block 7 to be close to or far away from the center of the workpiece positioning channel 5, so that the workpiece is pressed or loosened.
As shown in fig. 5, the feeding turntable 3 is provided with a plurality of mounting holes 3.1 which extend along the radial direction and correspond to the mounting grooves 4 one by one, and each driving rod 10 is slidably mounted in the corresponding mounting hole 3.1; an accommodating groove 3.2 for accommodating the cam disc 12 is arranged on one side of the feeding turntable 3 close to the positioning seat 11, and the outer wall of the cam disc 12 and the inner wall of the accommodating groove 3.2 can rotate relatively. In addition, one end of each driving rod 10, which is far away from the second connecting rod 9, is connected with an arc-shaped lug 13, and the arc-shaped surface of each arc-shaped lug 13 is abutted with the outer peripheral wall of the cam disc 12; a movable channel 14 is arranged between the circumferential outer wall of the cam disc 12 and the inner wall of the accommodating groove 3.2, and each arc-shaped lug 13 is accommodated in the movable channel 14. That is, during the rotation of the material feeding rotary disc 3, the arc-shaped projection 13 at one end of each driving rod 10 moves along the outer peripheral wall abutting against the cam disc 12 because the cam disc 12 is not moved, and because the rotating radius of the outer peripheral wall of the cam disc 12 is unequal, the driving rod 10 makes telescopic motion along with the change of the rotating radius of the outer peripheral wall of the cam disc 12 during the rotation of the material feeding rotary disc 3. More specifically, the cam disc 12 includes a first circular ring 12.1 and a second circular ring 12.2 having the same rotation center but different rotation radiuses, and both end portions of the first circular ring 12.1 are connected with both end portions of the second circular ring 12.2 through arc-shaped sections, as shown in fig. 3, the rotation radius of the first circular ring 12.1 is larger than that of the second circular ring 12.2, that is, when the feeding turntable 3 rotates, when one end of a certain driving rod 10 close to the cam disc 12 is partially abutted to the first circular ring 12.1, the first pressing block 6 and the second pressing block 7 are in a state of pressing the workpiece; when one end of the driving rod 10 close to the cam disc 12 is partially abutted with the second circular ring 12.2, the first pressing block 6 and the second pressing block 7 are in a loosening state relative to the workpiece, and in this case, the driving rod is mainly used for loading and unloading the workpiece and automatically calibrating the workpiece.
As shown in fig. 5, the outer end and the inner end of the mounting hole 3.1 along the radial direction thereof are respectively connected with a first positioning block 15 and a second positioning block 16, the outer portion of the end of the driving rod 10 near the cam plate 12 is connected with an adjusting locking block 17, and a return spring 18 is sleeved outside the driving rod 10 and between the first positioning block 15 and the adjusting locking block 17.
As shown in fig. 4 and 5, a positioning plate 20 is detachably connected to one side of the inner cavity of the mounting groove 4, which is far away from the pressing component, and a workpiece positioning channel 5 is formed between the positioning plate 20 and the pressing surface of the pressing component. After the arrangement, when a user processes workpieces with different thickness specifications, the positioning plates 20 with different thickness sizes can be replaced correspondingly, the universality is improved, and the cost is low. More importantly, in the structure, one side far away from the pressing component in the mounting groove 4 is provided with an assembling groove extending along the depth direction of the assembling groove, the positioning plate 20 is inserted in the assembling groove along the depth direction of the mounting groove 4, the position corresponding to the positioning plate 20 on the circumferential outer wall of the feeding turntable 3 is detachably connected with a corresponding pressing plate 29 through a screw, one end of the pressing plate 29 is provided with a positioning bulge, the outer end of the positioning plate 20 is provided with a positioning groove matched with the positioning bulge, and the stability of the connecting structure of the positioning plate 20 and the feeding turntable 3 is effectively improved through the pressing plate 29.
As shown in fig. 1 and 6, the feeding assembly in this embodiment includes a feeding conveyor belt 21, a first pushing assembly 22 and a second pushing assembly 23, where the first pushing assembly 22 is used to push the workpiece on the feeding conveyor belt 21 to a transfer position corresponding to the corresponding workpiece positioning channel 5 on the feeding turntable 3, and the second pushing assembly 23 is used to push the workpiece at the transfer position into the workpiece positioning channel 5. The transfer position mentioned in this structure is a position corresponding to the workpiece positioning channel 5 when the feeding conveyor belt 21 is close to one end of the feeding turntable 3 and is in the horizontal direction, as can be seen from fig. 6, when the workpiece moves to the transfer position under the action of the first pushing assembly 22, then the second pushing assembly 23 continues to move, and the workpiece at the transfer position moves toward the workpiece positioning channel 5, because the feeding turntable 3 is in circular motion, when the feeding turntable 3 starts to rotate, the workpiece at the transfer position directly slides to the workpiece positioning channel 5, then the feeding turntable 3 rotates, the next workpiece positioning channel 5 rotates to the transfer position, and the next workpiece at the transfer position enters the workpiece positioning channel 5; when all the workpiece positioning channels 5 on the whole feeding turntable 3 have workpieces, the initial workpiece positioning channel 5 rotates to the transfer position again, and at the moment, the workpiece positioning channel 5 is not in an empty state any more, but contains the workpiece which is ground and processed, when the workpiece to be processed enters the corresponding workpiece positioning channel 5 again, the processed workpiece is extruded to the blanking conveyor belt 24, the position of the original workpiece is replaced by a new workpiece, the workpiece is continuously fed to the workpiece positioning channel 5 along with the continuous rotation of the feeding turntable 3, then through the grinding processing of mill 2, then by next work piece release to unloading conveyer belt 24, whole process compares in traditional grinding machine structure, and the automation goes on, does not need artifical manual participation, and degree of mechanization is high, and control is accurate to machining efficiency is high.
In this embodiment, the first pushing assembly 22 includes a driving cylinder and a first pushing block slidably mounted on the front side of the base 1, and the driving cylinder is a cylinder, a hydraulic cylinder or an electric pushing cylinder, and is configured to drive the first pushing block to reciprocate along a direction perpendicular to the feeding conveyor belt 21; the second pushing assembly 23 comprises a pushing motor fixed on the base 1, a screw rod is axially connected to an output shaft of the pushing motor, a screw rod slider is assembled outside the screw rod, a second pushing block is connected to the screw rod slider, and the second pushing block is driven to reciprocate along the conveying direction of the feeding conveyor belt 21 by rotation of the pushing motor.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. The utility model provides a double-ended grinding machine, includes frame (1), install mill (2) that two intervals and symmetry set up on frame (1), its characterized in that: the machine base (1) is also provided with a feeding assembly, a feeding turntable (3) and a motor for driving the feeding turntable (3) to rotate, and the feeding turntable (3) is used for conveying workpieces on the feeding assembly to the position between the two grinding discs (2) one by one for grinding; a plurality of mounting grooves (4) are concavely arranged on the circumferential outer wall of the feeding turntable (3), a pressing component is assembled on one side of the mounting groove (4) in the width direction, and the pressing component can stretch along the width direction of the mounting groove (4); so that a workpiece positioning channel (5) with adjustable width is formed between the pressing surface of the pressing component and the other side of the width direction of the mounting groove (4); the feeding turntable (3) is further connected with a driving assembly, and when the motor drives the feeding turntable (3) to rotate circumferentially to different set positions, the driving assembly is used for driving the pressing assembly to move in an extending mode or in a retracting mode so as to clamp or loosen a workpiece.
2. The parallel surface grinding machine of claim 1, wherein: the pressing assembly comprises a first pressing block (6) and a second pressing block (7) which are arranged from outside to inside along the depth direction of the mounting groove (4), and a first connecting rod (8) and a second connecting rod (9) which are mutually hinged in a cross mode and have equal length; one end of the first connecting rod (8) is hinged to the second pressing block (7), the other end of the first connecting rod (8) is hinged to the side wall of the mounting groove (4), one end of the second connecting rod (9) is hinged to the first pressing block (6), the other end of the second connecting rod (9) is hinged to a driving rod (10) which can move in the radial direction of the feeding turntable (3), and one end, far away from the second connecting rod (9), of the driving rod (10) is in transmission connection with the driving assembly; when the driving component drives the driving rod (10) to do telescopic motion along the radial direction, the first pressing block (6) and the second pressing block (7) synchronously approach or depart from corresponding side walls in the mounting groove (4).
3. The parallel surface grinding machine of claim 2, wherein: one end, close to the second pressing block (7), of the first pressing block (6) is connected with a guide rod (19), and a guide hole used for enabling the guide rod (19) to be in sliding fit is formed in the second pressing block (7).
4. A parallel surface grinding machine as claimed in claim 2 or claim 3 wherein: one end of the center of the feeding turntable (3) is in transmission connection with an output shaft of the motor, the other end of the center of the feeding turntable (3) is connected with a positioning seat (11), the positioning seat (11) is fixed on the base (1), and the feeding turntable (3) and the positioning seat (11) can rotate relatively; the positioning seat (11) is connected with a cam disc (12) which is arranged in parallel with the feeding turntable (3), and one end of the driving rod (10) far away from the second connecting rod (9) is abutted against the outer side wall of the cam disc (12).
5. The parallel surface grinding machine of claim 4, wherein: the feeding turntable (3) is provided with a plurality of mounting holes (3.1) which extend along the radial direction of the feeding turntable and correspond to the mounting grooves (4) one by one, and each driving rod (10) is assembled in the corresponding mounting hole (3.1) in a sliding manner; an accommodating groove (3.2) for accommodating the cam disc (12) is formed in one side, close to the positioning seat (11), of the feeding turntable (3), and the outer wall of the cam disc (12) and the inner wall of the accommodating groove (3.2) can rotate relatively.
6. The parallel surface grinding machine of claim 5, wherein: one end of each driving rod (10) far away from the second connecting rod (9) is connected with an arc-shaped lug (13), and the arc-shaped surface of each arc-shaped lug (13) is abutted with the outer peripheral wall of the cam disc (12); a movable channel (14) is arranged between the circumferential outer wall of the cam disc (12) and the inner wall of the containing groove (3.2), and each arc-shaped lug (13) is contained in the movable channel (14).
7. The parallel surface grinding machine of claim 6, wherein: the cam plate (12) comprises a first circular ring (12.1) and a second circular ring (12.2) which have the same rotation center but different rotation radiuses, and two end parts of the first circular ring (12.1) are connected with two end parts of the second circular ring (12.2) through arc-shaped sections.
8. The parallel surface grinding machine of claim 7, wherein: be connected with first locating piece (15) and second locating piece (16) respectively along its radial outer end and inner in mounting hole (3.1), actuating lever (10) are nearly the external connection of cam disc (12) one end has regulation locking piece (17), just the outside of actuating lever (10) just is located first locating piece (15) with it is equipped with reset spring (18) to adjust between locking piece (17).
9. The parallel surface grinding machine of claim 1, wherein: one side, far away from the pressing component, of the inner cavity of the mounting groove (4) is detachably connected with a positioning plate (20), and a workpiece positioning channel (5) is formed between the positioning plate (20) and a pressing surface of the pressing component.
10. A parallel surface grinding machine as claimed in claim 1 or claim 9, wherein: the feeding assembly comprises a feeding conveyor belt (21), a first pushing assembly (22) and a second pushing assembly (23), the first pushing assembly (22) is used for pushing workpieces on the feeding conveyor belt (21) to a transfer position corresponding to the workpiece positioning channel (5), and the second pushing assembly (23) is used for pushing the workpieces at the transfer position into the workpiece positioning channel (5).
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| CN202210579037.9A CN114850995B (en) | 2022-05-25 | 2022-05-25 | Double-end-face grinding machine |
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| CN202210579037.9A CN114850995B (en) | 2022-05-25 | 2022-05-25 | Double-end-face grinding machine |
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| CN114850995B CN114850995B (en) | 2023-05-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116141194A (en) * | 2023-02-28 | 2023-05-23 | 肇庆高峰机械科技有限公司 | Automatic feeding device for double-end-face grinding machine |
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| CN114850995B (en) | 2023-05-23 |
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