CN108907918B - Cylindrical grinding machine - Google Patents
Cylindrical grinding machine Download PDFInfo
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- CN108907918B CN108907918B CN201810768174.0A CN201810768174A CN108907918B CN 108907918 B CN108907918 B CN 108907918B CN 201810768174 A CN201810768174 A CN 201810768174A CN 108907918 B CN108907918 B CN 108907918B
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- 238000000227 grinding Methods 0.000 title claims abstract description 93
- 238000009434 installation Methods 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 3
- 230000010354 integration Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000003754 machining Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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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
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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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
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention provides a cylindrical grinding machine, and belongs to the technical field of machinery. The grinding machine solves the problem of ensuring the consistent processing quality of workpieces on two stations on the premise of improving the processing efficiency of the grinding machine. The left thimble of this grinding machine's left clamping seat and the axis coincidence of the right thimble of right clamping seat are equipped with the integration seat between left clamping seat and the right clamping seat, have the installation through-hole in the integration seat, the central line of installation through-hole all coincides with the axis of left thimble and right thimble, the one end of installation through-hole is provided with the integration thimble one that corresponds and axis and the central line coincidence of installation through-hole with right thimble, the other end of installation through-hole is provided with the integration thimble two that corresponds and axis and installation through-hole's central line coincidence with left thimble. The grinding machine adopts a double-station design, so that the working efficiency is high; through integrated design, ensure that the thimble of one station and another station possesses good axiality to guarantee that work piece processingquality on two stations is unanimous, and saved occupation space and manufacturing cost greatly.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a cylindrical grinding machine.
Background
The cylindrical grinding machine is mainly used for grinding the outer surface generated by cylindrical, conical or other shaped plain wires, the end surface of a shaft shoulder and other workpieces. Among all grinding machines, cylindrical grinding machines are the most widely used type of machine tools, and generally comprise main components such as a cast iron lathe bed of a basic part, a workbench, a headstock and a tailstock for supporting and driving a workpiece to rotate, a grinding headstock for mounting a grinding head (grinding wheel), a transverse feeding mechanism for controlling the size of a grinding workpiece, an electric appliance and a hydraulic device for controlling the action of moving parts of the machine tool, and the like. Cylindrical grinding machines can be generally classified into general cylindrical grinding machines, universal cylindrical grinding machines, wide-grinding-wheel cylindrical grinding machines, end-face cylindrical grinding machines, multi-grinding-wheel-carrier cylindrical grinding machines, multi-grinding-wheel cylindrical grinding machines, cut-in cylindrical grinding machines, special cylindrical grinding machines, and the like.
Such as chinese patent [ application number: 200710034797.7 discloses a cylindrical grinding machine, wherein a tailstock sleeve is designed between a tailstock box and a tailstock shaft, and a hydraulic cylinder is fixedly connected with the tailstock sleeve through a piston rod; the tail end of the tailstock shaft is provided with a bidirectional stress thrust bearing; the clamping structure of the headstock and the tailstock of the cylindrical grinding machine is used for cylindrical grinding processing of conical/cylindrical workpieces with large size and large specific gravity, can ensure processing quality, and has the characteristics of safety, convenience in operation, high working efficiency and the like.
However, in the actual use of the grinding machine, the grinding machine usually consumes the most man-hour process not the grinding process but the clamping and calibrating process. Because the clamping and calibration processes consume a large amount of preparation time, the grinding machine is in a stop waiting state at the moment, and thus the machining efficiency of the grinding machine is greatly influenced. In order to solve the above-mentioned problems, as disclosed in chinese patent No. 200810136223.5, a high-efficiency grinding machine and a grinding method thereof are disclosed, the grinding machine comprises a grinding machine body, a fixture seat disposed at one end of the grinding machine body, and a grinding head mechanism disposed at one side of the grinding machine body opposite to the fixture seat, wherein the fixture seat is provided with a fixture at a station, and the stations are at least two. The method is characterized in that the clamping and the calibration of the clamp at one station are performed while the workpiece clamped on the clamp at the other station is ground, so that the clamping and the calibration time of the clamp are shortened, and the production efficiency is improved.
However, as known from the above-disclosed grinding machine, the existing grinding machine adopts a double-station design, two groups of clamps are required to clamp two workpieces, and the axes of the ejector pins for clamping and positioning cannot be completely coaxial due to errors in the design and installation of the two groups of clamps; and the workpiece is clamped on the two groups of clamps respectively, so that coaxiality is not good when the two workpieces are actually machined, the machining quality of a batch of workpieces machined by the two stations is inconsistent, and the subsequent machining of the workpieces and the establishment of quality inspection standards are affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a cylindrical grinding machine, which solves the technical problem of ensuring that the machining quality of workpieces on two stations is consistent on the premise of improving the machining efficiency of the grinding machine.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a cylindrical grinder, includes lathe bed and bistrique, be provided with left clamping seat and right clamping seat on the lathe bed, the left thimble of left clamping seat and the axis coincidence of the right thimble of right clamping seat, its characterized in that, be equipped with the integration seat between left clamping seat and the right clamping seat, have the cross-section in the integration seat and be circular and follow the installation through-hole that runs through the integration seat along a straight line, the central line of installation through-hole all coincides with the axis of left thimble and right thimble, the one end of installation through-hole is provided with the integration thimble one that corresponds and axis and installation through-hole's central line coincides with right thimble, the other end of installation through-hole is provided with the integration thimble two that corresponds and axis and installation through-hole's central line coincides with left thimble.
The cylindrical grinding machine adopts a double-station design, namely, a first station is formed by the first integrated thimble and the right thimble, and another station is formed between the second integrated thimble and the left thimble, when one station is used for machining, the other station can carry out clamping calibration work, the two stations are sequentially and alternately circulated, and the grinding heads respectively grind workpieces on the two stations according to conditions, and in the process, the grinding heads do not need to be stopped, so that the machining efficiency of the cylindrical grinding machine is improved; meanwhile, the cylindrical grinding machine is characterized in that an integrated seat is designed, an installation through hole which is coaxial with both the left thimble and the right thimble is designed in the integrated seat, and the first integrated thimble and the second integrated thimble are coaxially arranged at two ends of the installation through hole respectively, namely, through the design, the first integrated thimble and the second integrated thimble share the positioning reference of the installation through hole, so that the coaxiality of the first integrated thimble and the second integrated thimble can be effectively ensured, the installation through hole is coaxial with both the left thimble and the right thimble, the coaxiality between the two thimbles used for positioning a workpiece on two stations is ensured, and the coaxiality of the workpiece clamped on the two stations is further ensured, and the machining quality of the workpiece which is respectively ground and machined by the two stations is consistent; on the other hand, as the integrated ejector pins I and II are integrated together through the integrated seat, the arrangement distance between the integrated ejector pins I and II is greatly shortened, unnecessary space waste between the integrated ejector pins I and II is effectively saved, and the occupied space of the grinding machine which is increased due to double-station design is effectively reduced; in addition, as the first integrated thimble and the second integrated thimble share the seat body of the integrated seat, the manufacturing material can be saved, and the manufacturing cost can be effectively saved.
In the cylindrical grinding machine, one end of the installation through hole, which is close to the right clamping seat, is tightly matched and fixed with a main shaft with the axis coincident with the center line of the installation through hole, the first integrated thimble is coaxially penetrated or integrally formed in the main shaft, one end of the installation through hole, which is close to the left clamping seat, is slidably connected with a sliding sleeve with the axis coincident with the center line of the installation through hole, and the second integrated thimble is coaxially penetrated or integrally formed in the sliding sleeve. Through the design, the main shaft for installing the first integrated thimble and the sliding sleeve for installing the second integrated thimble are installed in the installation through hole together, namely, the main shaft is tightly matched with the installation through hole, and the sliding sleeve is in sliding fit with the installation through hole, so that the main shaft and the sliding sleeve share the positioning reference of the installation through hole, and the main shaft and the sliding sleeve are ensured to be coaxially arranged; and because the first integrated thimble is coaxial with the main shaft, the second integrated thimble is coaxial with the sliding sleeve, so that the coaxiality of the first integrated thimble and the second integrated thimble is effectively ensured, the mounting through hole is coaxial with the left thimble and the right thimble, and the coaxiality between the two thimbles for positioning the workpiece on the two stations is further ensured, so that the coaxiality of the workpiece clamped on the two stations is ensured, and the consistency of the processing quality of the workpiece which is respectively ground and processed by the two stations is ensured.
In the cylindrical grinding machine, a spring adjusting seat is arranged in the installation through hole between the main shaft and the sliding sleeve, a positioning hole coaxial with the main shaft is formed in the inner end of the main shaft, a boss part extending into the positioning hole and rotationally connected with the positioning hole is formed in one end of the spring adjusting seat, a screw rod part coaxial with the boss part is arranged at the other end of the spring adjusting seat, a screw is connected to the screw rod part in a threaded manner, the screw is circumferentially positioned with the integrated seat, a spring is arranged between the screw and the sliding sleeve, one end of the spring abuts against the screw, and the other end of the spring abuts against the sliding sleeve. The spring adjusting seat is matched with the positioning hole on the main shaft through the boss part, so that the axis of the spring adjusting seat is always coaxial with the main shaft in the rotating process, namely, the axis of the screw rod part is coaxial with the main shaft, when the screw rod part drives the screw nut to move, the moving direction of the screw nut is consistent with the axis direction of the main shaft, the spring is not easy to axially deviate under the pushing of the screw nut, the direction of the spring elastic force of the sliding sleeve is always kept in the axis direction of the main shaft, and the coaxiality of the sliding sleeve and the main shaft when the sliding sleeve is subjected to the spring elastic force or moves against the spring elastic force is guaranteed, so that the consistency of the processing quality of two stations is further guaranteed; in addition, the design of the positioning holes also plays a role in yielding, so that the structure of each part such as the main shaft, the sliding sleeve, the spring seat and the like in the integrated seat is more compact, thereby being beneficial to saving space, reducing manufacturing materials and reducing cost.
Preferably, in the cylindrical grinding machine, a spring mounting hole coaxial with the sliding sleeve is formed in the sliding sleeve, one end of the spring abuts against the nut, the other end of the spring abuts against the bottom of the spring mounting hole, the spring adjusting seat can drive the nut to move into the spring mounting hole, and the nut can be in sliding fit with the spring mounting hole. Above nut and the cooperation design of spring mounting hole, when the nut moved in the spring mounting hole, worn together through these two middles of spring mount pad and nut between main shaft and the sliding sleeve this moment, at the sliding sleeve in-process that removes, the nut can play the guide effect, can further guarantee the sliding sleeve like this in clamping removal in-process with the axiality of main shaft to the uniformity of work piece processingquality on two stations has further been improved.
In the cylindrical grinding machine, a spring is arranged between the main shaft and the sliding sleeve, the spring enables the sliding sleeve to have a trend of extending outwards relative to the installation through hole, a driving piece is arranged in the integrated seat, and the driving piece can drive the sliding sleeve to overcome the spring force through a transmission mechanism and retract inwards relative to the installation through hole along the axis of the installation through hole. When the workpiece is required to be clamped, at the moment, the sliding sleeve is required to overcome the elastic force of the spring to shrink inwards and is different from manual pushing, and the driving piece can generate a driving force with stable direction, so that the sliding sleeve can always move along the axial direction of the mounting through hole in the retraction process, the coaxiality of the sliding sleeve and the main shaft in the clamping moving process is ensured, and the consistency of the processing quality of the workpiece on two stations is further improved.
In the cylindrical grinding machine, the integrated seat is internally provided with the mounting cavity communicated with the mounting through hole, the transmission mechanism comprises a deflector rod hinged in the mounting cavity, the free end of the deflector rod is provided with a ball head, the outer peripheral surface of the sliding sleeve is provided with an action hole, the diameter of the ball head is smaller than that of the action hole and is positioned in the action hole, and the driving piece can push the deflector rod to swing inwards. Through the design of the transmission mechanism, the driving piece can drive the sliding sleeve to overcome the elasticity of the spring and shrink inwards along the axis of the installation through hole relative to the installation through hole; meanwhile, the driving piece needs to repeatedly drive the deflector rod to swing, the deflector rod is easy to deform, in the transmission mechanism, the deflector rod is connected with the sliding sleeve in a manner of being in flexible connection like that formed by matching of the ball head and the action hole, so that the sliding sleeve is not easy to be influenced by factors such as deflector rod deformation, coaxiality of the sliding sleeve and a main shaft in the clamping and moving process is ensured, and the consistency of workpiece machining quality on two stations is further improved.
Alternatively, the integrated seat is internally provided with a mounting cavity communicated with the mounting through hole, the transmission mechanism comprises a deflector rod arranged in the mounting cavity, one end of the deflector rod is fixed on the sliding sleeve, and the driving piece can push the deflector rod to move inwards along the axis of the mounting through hole. Through the design of above drive mechanism for the driving piece can drive the sliding sleeve and overcome spring force and inwards shrink along the axis of installation through-hole relative installation through-hole.
In the cylindrical grinding machine, the integrated seat is provided with the adjusting port communicated with the mounting through hole, the spring adjusting seat is cylindrical, part of the outer peripheral surface of the spring adjusting seat is opposite to the adjusting port, and the outer peripheral surface of the spring adjusting seat is provided with the adjusting hole. Through above design, only need just can rotate the spring regulation seat through acting on the regulation hole with the instrument to this adjustment that realizes the spring elasticity, in the whole adjustment process, because spring regulation seat does not cooperate with the sliding sleeve, and the main shaft is in fixed state, consequently, can not cause the influence to the axiality of sliding sleeve and main shaft, thereby guarantee the uniformity of work piece processingquality on two stations.
In the cylindrical grinding machine, a limiting groove communicated with the mounting through hole is formed in the integrated seat along the axial direction of the mounting through hole, a limiting rod is fixed on the nut, the limiting rod penetrates out of the mounting through hole and is positioned in the limiting groove, and a yielding port communicated with the spring mounting hole is formed in the cylinder wall of the sliding sleeve along the axial direction. Through the design, the circumferential positioning of the screw is realized, the opening of the yielding port on the sliding sleeve is arranged, and the limiting rod cannot generate radial force which influences the coaxiality of the sliding sleeve on the sliding sleeve, so that the coaxiality of the sliding sleeve cannot be influenced by the design, and the consistency of the processing quality of workpieces on two stations is ensured.
In the cylindrical grinding machine, the driving piece is a hydraulic cylinder fixed in the integrated seat, the hydraulic cylinder is arranged below the sliding sleeve, and a piston rod of the hydraulic cylinder can abut against the deflector rod and push the deflector rod to swing. The driving piece adopts the design, so that the installation space in the axial direction can be effectively saved; alternatively, the driving member may be a cylinder, a linear motor, or the like.
In the cylindrical grinding machine, the lathe bed is fixedly provided with the transverse sliding rail which is arranged along the transverse direction, the transverse sliding rail is connected with the supporting plate in a sliding manner, the supporting plate is fixedly provided with the longitudinal sliding rail which is arranged along the longitudinal direction, the longitudinal sliding rail is connected with the grinding head frame in a sliding manner, and the grinding head is arranged on the grinding head frame. Through the design of each slide rail, the grinding head can move relative to the lathe bed, so that after the grinding head finishes processing a workpiece on one station, the other station which can move uninterruptedly can continue processing, and the working efficiency of the grinding machine is improved.
Compared with the prior art, the cylindrical grinding machine has the following advantages:
1. the cylindrical grinding machine adopts a double-station design, so that the working efficiency is high;
2. The cylindrical grinding machine ensures that the thimble of one station and the thimble of the other station have good coaxiality through the integrated design, thereby ensuring the consistent processing quality of workpieces on the two stations;
3. the cylindrical grinding machine has the advantages that through the integrated design, the occupied space and the manufacturing cost of the grinding machine are greatly saved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the cylindrical grinding machine.
Fig. 2 is a schematic structural view of an integrated seat portion in the present cylindrical grinding machine.
Fig. 3 is a schematic structural view of the integrated seat in the first embodiment, taken along the axis of the mounting through hole.
Fig. 4 is a schematic structural view of the integrated seat in the cylindrical grinding machine after being cut along the axis of the mounting through hole.
Fig. 5 is an exploded view of the integrated seat portion of the first embodiment.
Fig. 6 is a schematic structural diagram of the second embodiment of the integrated seat after being cut along the axis of the mounting through hole.
In the figure, 1, a lathe bed; 2. grinding head; 3. a left clamping seat; 31. a left thimble; 4. a right clamping seat; 41. a right thimble; 5. an integrated seat; 5a, mounting through holes; 51. a mounting cavity; 52. an adjustment port; 53. a limit groove; 6. a main shaft; 61. positioning holes; 7. the first thimble is integrated; 8. a sliding sleeve; 81. a spring mounting hole; 82. a yielding port; 8a, action holes; 9. an integrated thimble II; 10. a spring adjusting seat; 101. a boss portion; 102. a screw rod part; 10a, adjusting holes; 11. a nut; 12. a spring; 13. a driving member; 14. a deflector rod; 141. ball head; 15. a limit rod; 16. a transverse slide rail; 17. a longitudinal slide rail; 18. a supporting plate; 19. a grinding head frame; 20. a clamp fixing plate; 21. and a motor.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Embodiment one:
Specifically, as shown in fig. 1, the present cylindrical grinding machine includes a bed 1 and a grinding head 2 movable relative to the bed 1. The grinding machine comprises a machine body 1, a transverse sliding rail 16 arranged transversely is fixed on the machine body 1, a supporting plate 18 is connected to the transverse sliding rail 16 in a sliding mode, a longitudinal sliding rail 17 arranged longitudinally is fixed on the supporting plate 18, a grinding head frame 19 is connected to the longitudinal sliding rail 17 in a sliding mode, and a grinding head 2 is arranged on the grinding head frame 19. Meanwhile, a left clamping seat 3 and a right clamping seat 4 are arranged on the lathe bed 1, a left thimble 31 of the left clamping seat 3 and a right thimble 41 of the right clamping seat 4 are coaxially arranged, and an integration seat 5 is arranged between the left clamping seat 3 and the right clamping seat 4. In this embodiment, the left clamping seat 3 and the right clamping seat 4 are respectively a headstock and a tailstock.
As shown in fig. 2 and 3, an installation through hole 5a coaxial with the left thimble 31 and the right thimble 41 is formed in the integration seat 5, a main shaft 6 coaxial with the installation through hole 5a is fixed at one end, close to the right clamping seat 4, of the installation through hole 5a in a tight fit manner, an integration thimble I7 coaxial with the main shaft 6 is formed on the main shaft 6, a sliding sleeve 8 coaxial with the installation through hole 5a is slidably connected at one end, close to the left clamping seat 3, of the installation through hole 5a, and an integration thimble II 9 coaxial with the sliding sleeve 8 is formed on the sliding sleeve 8. A spring adjusting seat 10 is arranged in the installation through hole 5a between the main shaft 6 and the sliding sleeve 8, a positioning hole 61 coaxial with the main shaft 6 is arranged at the inner end of the main shaft 6, a boss part 101 extending into the positioning hole 61 and rotationally connected with the positioning hole 61 is arranged at one end of the spring adjusting seat 10, a screw rod part 102 coaxial with the boss part 101 is arranged at the other end of the spring adjusting seat, a cylindrical screw 11 is connected on the screw rod part 102 in a threaded manner, and the screw 11 and the integrated seat 5 are positioned circumferentially. A spring 12 is arranged between the nut 11 and the sliding sleeve 8, a spring mounting hole 81 coaxial with the sliding sleeve 8 is formed in the sliding sleeve 8, one end of the spring 12 is abutted against the nut 11, the other end is abutted against the bottom of the spring mounting hole 81, the spring adjusting seat 10 can drive the nut 11 to move into the spring mounting hole 81, and the nut 11 can be in sliding fit with the spring mounting hole 81.
As shown in fig. 3, the spring 12 makes the sliding sleeve 8 have a tendency to extend outwards relative to the mounting through hole 5a, the driving member 13 is disposed in the integrated seat 5, and the driving member 13 can drive the sliding sleeve 8 to overcome the elastic force of the spring 12 through the transmission mechanism and retract inwards relative to the mounting through hole 5a along the axis of the mounting through hole 5 a. The integrated seat 5 is provided with a mounting cavity 51 communicated with the mounting through hole 5a, in this embodiment, the transmission mechanism comprises a deflector rod 14 hinged in the mounting cavity 51, the free end of the deflector rod 14 is provided with a ball head 141, the outer peripheral surface of the sliding sleeve 8 is provided with an action hole 8a, and the diameter of the ball head 141 is smaller than that of the action hole 8a and is positioned in the action hole 8 a. The driving element 13 is a hydraulic cylinder fixed in the integrated seat 5, the hydraulic cylinder is arranged below the sliding sleeve 8, and a piston rod of the hydraulic cylinder can abut against the deflector rod 14 and push the deflector rod 14 to swing.
More specifically, as shown in fig. 4 and 5, the outside of the spindle 6 is rotatably connected with a jig fixing plate 20 through a bearing, and a motor 21 arranged in parallel with the mounting through hole 5a is fixed to the integrated seat 5, and the motor 21 drives the jig fixing plate 20 to rotate through a timing belt. The integrated seat 5 is also provided with an adjusting opening 52 communicated with the mounting through hole 5a, the spring adjusting seat 10 is cylindrical, part of the outer peripheral surface of the spring adjusting seat 10 faces the adjusting opening 52, and the outer peripheral surface of the spring adjusting seat 10 is provided with an adjusting hole 10a. Meanwhile, a limiting groove 53 communicated with the mounting through hole 5a is further formed in the integrated seat 5 along the axial direction of the mounting through hole 5a, a limiting rod 15 is fixed on the screw 11, the limiting rod 15 penetrates out of the mounting through hole 5a and is positioned in the limiting groove 53, and a yielding port 82 communicated with the spring mounting hole 81 is formed in the cylinder wall of the sliding sleeve 8 along the axial direction.
Embodiment two:
The technical scheme in this embodiment is basically the same as that in the first embodiment, except that, as shown in fig. 6, in this embodiment, the transmission mechanism includes a shift lever 14 disposed in an installation cavity 51, one end of the shift lever 14 is fixed on the sliding sleeve 8, and the driving member 13 can push the shift lever 14 to move inward along the axis of the installation through hole 5 a.
Embodiment III:
In the embodiment, the left clamping seat 3 and the right clamping seat 4 are headstock, and the corresponding integrated thimble I7 and the corresponding integrated thimble II 9 are telescopic thimble capable of telescoping.
Embodiment four:
In the embodiment, the left clamping seat 3 and the right clamping seat 4 are tailstocks, and the corresponding integrated thimble I7 and the corresponding integrated thimble II 9 are non-telescopic fixed thimbles.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the bed 1, the grinding head 2, the left holder 3, the left thimble 31, the right holder 4, the right thimble 41, the integrated holder 5, the mounting through hole 5a, the mounting cavity 51, the adjustment port 52, the limit groove 53, the spindle 6, the positioning hole 61, the integrated thimble one 7, the slide bush 8, the spring mounting hole 81, the relief port 82, the action hole 8a, the integrated thimble two 9, the spring adjustment holder 10, the boss portion 101, the screw portion 102, the adjustment hole 10a, the nut 11, the spring 12, the driving piece 13, the shift lever 14, the ball head 141, the limit lever 15, the lateral slide rail 16, the longitudinal slide rail 17, the pallet 18, the grinding head frame 19, the clamp fixing plate 20, the motor 21, and the like are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (8)
1. The cylindrical grinding machine comprises a machine body (1) and a grinding head (2), wherein a left clamping seat (3) and a right clamping seat (4) are arranged on the machine body (1), a left thimble (31) of the left clamping seat (3) is overlapped with a right thimble (41) of the right clamping seat (4) in an axial line, and the cylindrical grinding machine is characterized in that an integrated seat (5) is arranged between the left clamping seat (3) and the right clamping seat (4), an installation through hole (5 a) with a circular cross section penetrating through the integrated seat (5) along a straight line is arranged in the integrated seat (5), the central line of the installation through hole (5 a) is overlapped with the central lines of the left thimble (31) and the right thimble (41), one end of the installation through hole (5 a) is provided with an integrated thimble I (7) which corresponds to the right thimble (41) and the central line of the installation through hole (5 a), and the other end of the installation through hole (5 a) is provided with an integrated thimble II (9) which corresponds to the left thimble (31) and the central line of the installation through hole (5 a) is overlapped with; the two ends of the installation through hole (5 a) are respectively provided with a main shaft (6) for installing the integrated thimble I (7) and a sliding sleeve (8) for installing the thimble II (9), the sliding sleeve (8) is in sliding fit with the installation through hole (5 a), a spring adjusting seat (10) is arranged in the installation through hole (5 a) between the main shaft (6) and the sliding sleeve (8), the inner end of the main shaft (6) is provided with a positioning hole (61) coaxial with the main shaft (6), one end of the spring adjusting seat (10) is provided with a boss part (101) which stretches into the positioning hole (61) and is in rotary connection with the positioning hole (61), the other end of the spring adjusting seat is provided with a screw rod part (102) coaxial with the boss part (101), the screw rod part (102) is connected with a screw nut (11) in a threaded manner, a spring (12) is arranged between the screw nut (11) and the sliding sleeve (8), one end of the spring (12) is abutted against the screw nut (11), and the other end of the spring (12) is abutted against the sliding sleeve (8), and the other end of the spring adjusting seat (5) is provided with an adjusting hole (52) and is opposite to the peripheral surface of the adjusting seat (52).
2. The cylindrical grinding machine according to claim 1, wherein the axis of the spindle (6) coincides with the center line of the mounting through hole (5 a) and is tightly fixed at one end of the mounting through hole (5 a) close to the right clamping seat (4), the integrated thimble I (7) is coaxially arranged in the spindle (6) in a penetrating way or is integrally formed in a coaxial way, the axis of the sliding sleeve (8) coincides with the center line of the mounting through hole (5 a) and is slidingly connected at one end of the mounting through hole (5 a) close to the left clamping seat (3), and the integrated thimble II (9) is coaxially arranged in the sliding sleeve (8) in a penetrating way or is integrally formed in a coaxial way.
3. The cylindrical grinding machine according to claim 1, wherein the sliding sleeve (8) is internally provided with a spring mounting hole (81) coaxial with the sliding sleeve (8), one end of the spring (12) is abutted against the nut (11), the other end of the spring is abutted against the bottom of the spring mounting hole (81), the spring adjusting seat (10) can drive the nut (11) to move into the spring mounting hole (81), and the nut (11) can be in sliding fit with the spring mounting hole (81).
4. A cylindrical grinding machine according to claim 1, 2 or 3, characterized in that the spring (12) causes the sliding sleeve (8) to have a tendency to protrude outwards with respect to the mounting through hole (5 a), and that a driving member (13) is provided in the integrated seat (5), the driving member (13) being able to drive the sliding sleeve (8) by means of a transmission mechanism against the spring force of the spring (12) and to retract inwards with respect to the mounting through hole (5 a) along the axis of the mounting through hole (5 a).
5. The cylindrical grinding machine according to claim 4, wherein the integrated seat (5) is internally provided with a mounting cavity (51) communicated with the mounting through hole (5 a), the transmission mechanism comprises a deflector rod (14) hinged in the mounting cavity (51), the free end of the deflector rod (14) is provided with a ball head (141), the outer peripheral surface of the sliding sleeve (8) is provided with an action hole (8 a), the diameter of the ball head (141) is smaller than that of the action hole (8 a) and is positioned in the action hole (8 a), and the driving piece (13) can push the deflector rod (14) to swing inwards.
6. The cylindrical grinding machine according to claim 4, wherein the integrated seat (5) is internally provided with a mounting cavity (51) communicated with the mounting through hole (5 a), the transmission mechanism comprises a deflector rod (14) arranged in the mounting cavity (51), one end of the deflector rod (14) is fixed on the sliding sleeve (8), and the driving piece (13) can push the deflector rod (14) to move inwards along the axis of the mounting through hole (5 a).
7. A cylindrical grinding machine according to claim 1,2 or 3, wherein a limit groove (53) communicated with the installation through hole (5 a) is formed in the integrated seat (5) along the axial direction of the installation through hole (5 a), a limit rod (15) is fixed on the nut (11), the limit rod (15) penetrates out of the installation through hole (5 a) and is positioned in the limit groove (53), and a yielding port (82) communicated with the spring installation hole (81) is formed in the cylinder wall of the sliding sleeve (8) along the axial direction.
8. The cylindrical grinding machine according to claim 4, characterized in that the driving member (13) is a hydraulic cylinder fixed in the integrated seat (5), said hydraulic cylinder being arranged below the sliding sleeve (8), the piston rod of said hydraulic cylinder being able to rest against the deflector rod (14) and push the deflector rod (14) to oscillate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768174.0A CN108907918B (en) | 2018-07-13 | 2018-07-13 | Cylindrical grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768174.0A CN108907918B (en) | 2018-07-13 | 2018-07-13 | Cylindrical grinding machine |
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| CN108907918A CN108907918A (en) | 2018-11-30 |
| CN108907918B true CN108907918B (en) | 2024-07-02 |
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| CN201810768174.0A Active CN108907918B (en) | 2018-07-13 | 2018-07-13 | Cylindrical grinding machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514426B (en) * | 2018-12-19 | 2023-09-05 | 北京沃尔德金刚石工具股份有限公司 | Grinding machine fixture |
| CN109676466B (en) * | 2019-01-25 | 2023-11-07 | 浙江永耀机械科技有限公司 | Feeding mechanism of special-shaped crystal drilling, grinding and polishing machine convenient to disassemble and assemble |
| CN117020766A (en) * | 2023-08-22 | 2023-11-10 | 稳利达电源技术有限公司 | High-precision cylindrical grinding machine device and use method |
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| CN1463814A (en) * | 2002-06-09 | 2003-12-31 | 孙生强 | Double end turning lathe and process thereof |
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| CN101733691A (en) * | 2008-11-17 | 2010-06-16 | 吴江市海鑫机械有限公司 | High-efficiency grinding machine and grinding method thereof |
| CN202129691U (en) * | 2011-04-18 | 2012-02-01 | 彭洪富 | Cylindrical grinder with double spindles on two sides |
| CN104440535B (en) * | 2014-11-17 | 2017-01-04 | 新昌县海力普精工科技有限公司 | Cylindrical grinder tailstock |
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| CN208451220U (en) * | 2018-06-11 | 2019-02-01 | 南京钢铁股份有限公司 | The numerically control grinder of grinding roller can continuously be replaced |
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| JP2003205401A (en) * | 2002-01-09 | 2003-07-22 | Nakamura Tome Precision Ind Co Ltd | Simultaneous machining method of shaft work in lathe with opposed two spindles, and double center tool |
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| CN108907918A (en) | 2018-11-30 |
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