CN110842578B - Turning and grinding compound machine tool suitable for medium-small disc gears - Google Patents
Turning and grinding compound machine tool suitable for medium-small disc gears Download PDFInfo
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- CN110842578B CN110842578B CN201911287546.9A CN201911287546A CN110842578B CN 110842578 B CN110842578 B CN 110842578B CN 201911287546 A CN201911287546 A CN 201911287546A CN 110842578 B CN110842578 B CN 110842578B
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 6
- 210000000078 claw Anatomy 0.000 description 19
- 239000012528 membrane Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a turning and grinding compound machine tool suitable for medium and small disc gears, which can solve the technical problems of high cost of a matched feeding manipulator, low feeding efficiency and to-be-improved machining precision of the compound machine tool. The utility model provides a compound lathe of turning and grinding suitable for middle-size, small-size dish class gear, its includes lathe bed, work piece main shaft, outer circle grinding mechanism, inner circle grinding mechanism and sword tower mechanism, its characterized in that: the workpiece spindle is vertically arranged, the lower end of the workpiece spindle is provided with a clamp, the workpiece spindle is arranged on a spindle seat and driven by an X-axis feeding mechanism, the spindle seat is arranged on the upper part of the lathe bed and driven by a Z-axis feeding mechanism, the turning and grinding compound machine tool further comprises a feeding mechanism, and the feeding mechanism, the outer circle grinding mechanism, the inner circle grinding mechanism and the cutter tower mechanism are sequentially arranged on the front side of the lathe bed along the X-axis direction and are positioned below the workpiece spindle. The workpiece spindle and fixture checking fixture manipulator has the advantages of reducing cost and improving feeding efficiency.
Description
Technical Field
The invention relates to the field of machine tools, in particular to a turning and grinding compound machine tool suitable for medium and small disc gears.
Background
Turning and grinding of the inner circle, the outer circle and the end faces (two end faces) of the medium-sized and small-sized disc gears are realized by a grinding machine and a lathe in a fractional machining mode in the traditional technology, machining efficiency is low, repeated clamping of workpieces is involved, and machining precision is difficult to meet requirements. Therefore, the turning and grinding compound machine tool is developed and formed in the industry, but the existing turning and grinding compound machine tool is required to be provided with a feeding manipulator to realize automatic feeding, so that the cost is high, the feeding efficiency is low, and meanwhile, the improvement of the processing precision is difficult to meet expectations.
Disclosure of Invention
The invention provides a turning and grinding compound machine tool suitable for medium and small disc gears, which can solve the technical problems of high cost of a matched feeding manipulator, low feeding efficiency and to-be-improved machining precision of the compound machine tool.
The technical scheme is that the turning and grinding combined machine tool suitable for the medium-sized and small-sized disc gears comprises a machine body, a workpiece main shaft, an outer circle grinding mechanism, an inner circle grinding mechanism and a cutter tower mechanism, and is characterized in that: the workpiece spindle is vertically arranged, the lower end of the workpiece spindle is provided with a clamp, the workpiece spindle is arranged on a spindle seat and driven by an X-axis feeding mechanism, the spindle seat is arranged on the upper portion of a lathe bed and driven by a Z-axis feeding mechanism, the turning and grinding compound machine tool further comprises a feeding mechanism, and the feeding mechanism, the outer circle grinding mechanism, the inner circle grinding mechanism and the turret mechanism are sequentially arranged on the front side of the lathe bed along the X-axis direction and are positioned below the workpiece spindle.
Further, the Z-axis feeding mechanism comprises a supporting plate, a Z-axis sliding rail pair, a Z-axis ball screw nut pair and a Z-axis servo motor, the workpiece spindle is arranged on the supporting plate, and the supporting plate is in guide fit with the spindle seat through the Z-axis sliding rail pair and is in transmission fit with the Z-axis servo motor through the Z-axis ball screw nut pair;
The X-axis feeding mechanism comprises a sliding table, an X-axis sliding rail pair, an X-axis ball screw nut pair and an X-axis servo motor, wherein the spindle seat is fixed on the sliding table, and the sliding table is matched with the lathe bed in a guiding manner through the X-axis sliding rail pair and is matched with the X-axis servo motor in a transmission manner through the X-axis ball screw nut pair.
Further, the turning and grinding compound machine tool further comprises a grinding wheel trimmer, and the grinding wheel trimmer is arranged at the lower part of the spindle seat.
Further, the clamp comprises a film clamp and a pitch circle positioning mechanism, wherein the pitch circle positioning mechanism comprises positioning rods which are matched with all clamping jaws of the film clamp one by one; the claw and the locating rod of a model are independently matched with a helical gear to be processed of a model, a through hole is formed in the claw, a pitch circle locating part is arranged at one end of the locating rod, the pitch circle locating part extends into the through hole towards the helical gear to be processed, an elastic piece is connected with the through hole, the elastic piece elastically acts on the locating rod to prevent the locating rod from separating from the through hole, an adjusting screw is in threaded connection with the through hole and tightly pushes against the other end of the locating rod, a guide groove arranged along the length direction is formed in the side wall of the locating rod, a guide screw is in threaded connection with a claw seat and extends into the guide groove, steel balls are mounted on the adjusting screw and tightly push against the other end of the locating rod through the steel balls, a guide plate is mounted on the end face of each claw, and a guide pin is mounted on the guide plate and provided with a ball head guide part matched with a tooth groove of the helical gear.
Further, the film clamp comprises a shell, a membrane, clamping jaws, clamping jaw seats, balancing weights and a driving unit, wherein the membrane is installed at one end of a cavity opening of the shell, the clamping jaws are installed on the clamping jaw seats, and the clamping jaw seats and the balancing weights are in one-to-one correspondence and are positioned and clamped on two sides of the membrane.
Furthermore, the number of the clamping claws is 3 and the clamping claws are uniformly distributed on the membrane.
Further, the elastic piece is a butterfly spring, the butterfly spring is sleeved at the other end of the positioning rod, the upper end of the butterfly spring abuts against the step surface of the positioning rod, and the lower end of the butterfly spring abuts against and is fixedly connected with the limiting piece of the positioning rod.
Furthermore, the limiting piece is a clamp spring, and the clamp spring is arranged in a clamp spring groove at the other end of the positioning rod.
Further, the positioning rod is provided with a gasket matched with the through hole.
Further, the end face of the jaw seat is provided with a step, the side face of the jaw and the side face of the step are arc-shaped surfaces and are mutually attached, and the bottom face of the jaw and the end face of the jaw seat are in positioning fit through positioning pins.
According to the invention, the workpiece main shaft is vertically arranged and matched with the X-axis driving mechanism and the Z-axis driving mechanism to move, so that the gears horizontally arranged on the feeding mechanism are clamped, and further, no additional mechanical arm is required to be arranged, the cost can be reduced, and the gear clamping process only relates to the linear movement in the X-axis direction and the Z-axis direction and the opening and closing of the clamp, so that the motion is simple, the path is short, and the feeding efficiency can be effectively improved; in addition, the outer circle grinding mechanism, the inner circle grinding mechanism and the cutter tower mechanism are linearly arranged on the front side of the lathe bed, so that cooling water, cutting fluid and the like can flow away rapidly without passing through the lathe bed, the temperature rise of the lathe is reduced, the situation that the lathe is free from uneven temperature distribution is avoided, the thermal stability of the lathe is improved, and further the machining precision is improved.
Drawings
Fig. 1 is a front view of a compound turning and grinding machine of the present invention.
Fig. 2 is a top view of the turning and grinding composite machine of the present invention.
Fig. 3 is a schematic top view of the fixture of the present invention.
Fig. 4 is a schematic diagram of the structure of fig. 3 at a partially enlarged position.
FIG. 5 is a schematic view of the B-B cross-sectional structure of FIG. 3.
FIG. 6 is an enlarged partial schematic view of the positioning rod mounting structure of FIG. 5.
Detailed Description
As shown in fig. 1-6, the turning and grinding combined machine tool suitable for the medium and small disc gears comprises a machine body 1, a workpiece main shaft 2, a feeding mechanism 4, an outer circle grinding mechanism 5, an inner circle grinding mechanism 6, a cutter tower mechanism 7 and a grinding wheel trimmer 13, wherein the workpiece main shaft 2 is an upright electric main shaft, a clamp 3 is arranged at the lower end of the workpiece main shaft, the workpiece main shaft 2 is arranged on a main shaft seat 14 and is driven by an X-axis feeding mechanism to move along the X-axis direction (i.e. the left-right direction of fig. 1), the main shaft seat 14 is arranged on the upper part of the machine body 1 and is driven by a Z-axis feeding mechanism along the Z-axis direction (i.e. the up-down direction of fig. 1), the feeding mechanism 4, the outer circle grinding mechanism 5, the inner circle grinding mechanism 6 and the cutter tower mechanism 7 are sequentially arranged on the front side of the machine body 1 along the X-axis direction and are positioned below the workpiece main shaft 2, and the grinding wheel trimmer 13 is arranged below the main shaft seat 14.
The Z-axis feeding mechanism comprises a supporting plate, a Z-axis sliding rail pair, a Z-axis ball screw nut pair and a Z-axis servo motor 12, the workpiece main shaft 2 is arranged on the supporting plate, and the supporting plate is in guide fit with the main shaft seat 14 through the Z-axis sliding rail pair and in transmission fit with the Z-axis servo motor 12 through the Z-axis ball screw nut pair; the X-axis feeding mechanism comprises a sliding table 8, an X-axis sliding rail pair 9, an X-axis ball screw nut pair 11 and an X-axis servo motor 10, a spindle seat 14 is fixed on the sliding table 8, the sliding table 8 is in guide fit with the lathe bed 1 through the X-axis sliding rail pair 9 and in transmission fit with the X-axis servo motor 10 through the X-axis ball screw nut pair 11, a pair of sliding rails of the X-axis sliding rail pair are fixed on the top of the lathe bed, a sliding block is fixed on the bottom of the sliding table, a ball screw of the X-axis ball screw nut pair is connected with a rotating shaft of the X-axis servo motor and is rotatably supported on the top of the lathe bed through a screw support, and a screw nut is fixed on the bottom of the sliding table.
Wherein, the feeding mechanism 4, the outer circle grinding mechanism 5, the inner circle grinding mechanism 6, the cutter tower mechanism 7 and the sand wheel trimmer are all conventional technologies in the prior art, and the invention also does not relate to the structural improvement of the mechanisms.
The clamp comprises a film clamp and a pitch circle positioning mechanism, wherein the pitch circle positioning mechanism comprises positioning rods 306 which are matched with 3 clamping jaws of the film clamp one by one, and clamping jaws 303 and positioning rods 306 of one type are independently matched with a helical gear to be processed of one type; the claw 303 is provided with a through hole, one end 306a of the positioning rod is provided with a pitch circle positioning part and extends into the through hole towards the bevel gear to be processed, the other end 306b of the positioning rod is connected with an elastic piece 308, the elastic piece 308 elastically acts on the positioning rod 306 to prevent the positioning rod 306 from being separated from the through hole, an adjusting screw 307 is in threaded connection with the through hole and tightly abuts against the other end 306b of the positioning rod, the side wall of the positioning rod 306 is provided with a guide groove 306c arranged along the length direction, a guide screw (not shown, 311 is a mounting hole of the guide screw) is in threaded connection with the claw seat 304 and extends into the guide groove 306c, the extending amount of the pitch circle positioning part is adjusted through rotation of the adjusting screw, and the guide groove is matched with the guide screw to carry out moving guide, so that fine adjustment can be carried out according to pitch circle jumping of an actual processed part, and the best effect is achieved; the end face of each claw 303 is provided with a guide plate 312, the guide plate 312 is provided with a guide pin, the end part of the guide pin is provided with a ball guide part 313a matched with a tooth groove of the bevel gear, and the bevel gear is provided with guide parts by the ball guide parts 313a of the three guide pins, so that the pitch circle positioning part of the positioning rod smoothly enters the tooth groove and is positioned with the pitch circle of the bevel gear; the adjusting screw 307 is provided with a steel ball 310 and is tightly propped against the other end 306b of the positioning rod through the steel ball, and the torsion force born by the positioning rod is reduced through the steel ball in the process of rotating and advancing the adjusting bolt to finely adjust the positioning rod.
The film clamp comprises a shell 301, a diaphragm 302, a claw 303, a claw seat 304, a balance block 305 and a driving unit, wherein the driving unit is an oil cylinder or an air cylinder (not shown), a piston rod of the driving unit is fixedly connected with the diaphragm after extending into the shell 301, the shell 301 is fixedly connected with a workpiece spindle, the diaphragm 302 is installed at one end of a cavity opening of the shell 301, the claw 303 is installed on the claw seat 304, the claw seat 304 and the balance block 305 are in one-to-one correspondence and are positioned and clamped on two sides of the diaphragm 302, a step 304a is arranged on the end face of the claw seat 304, the side faces of the claw 303 and the side faces of the step 304a are arc-shaped surfaces and are mutually attached, the bottom face of the claw 303 and the end face of the claw seat 304 are matched through positioning pins (not shown), and the arc-shaped surfaces and the positioning pins are matched in a two-way mode to realize rapid assembly of the claw in place; the elastic piece 309 is a butterfly spring, the butterfly spring is sleeved at the other end 306b of the positioning rod, the upper end of the butterfly spring abuts against the step surface of the positioning rod, and the lower end of the butterfly spring abuts against a limiting piece fixedly connected with the positioning rod; the limiting piece is a clamping spring which is arranged in a clamping spring groove at the other end 306b of the positioning rod.
In the drawing, 314 is a helical gear, 314a is a gear groove, and 36d is a groove for mounting a washer.
Claims (3)
1. The utility model provides a compound lathe of turning and grinding suitable for middle-size, small-size dish class gear, its includes lathe bed, work piece main shaft, outer circle grinding mechanism, inner circle grinding mechanism and sword tower mechanism, its characterized in that: the workpiece spindle is vertically arranged, the lower end of the workpiece spindle is provided with a clamp, the workpiece spindle is arranged on a spindle seat and driven by an X-axis feeding mechanism, the spindle seat is arranged on the upper part of a lathe bed and driven by a Z-axis feeding mechanism, the turning and grinding compound machine tool further comprises a feeding mechanism, and the feeding mechanism, the outer circle grinding mechanism, the inner circle grinding mechanism and the turret mechanism are sequentially arranged on the front side of the lathe bed along the X-axis direction and positioned below the workpiece spindle; the clamp comprises a film clamp and a pitch circle positioning mechanism, wherein the pitch circle positioning mechanism comprises positioning rods which are matched with all clamping jaws of the film clamp one by one; the clamping jaw and the positioning rod of one type are independently matched with a helical gear to be processed of one type, the clamping jaw is provided with a through hole, one end of the positioning rod is provided with a pitch circle positioning part and extends into the through hole towards the helical gear to be processed, the other end of the positioning rod is connected with an elastic piece, the elastic piece elastically acts on the positioning rod to prevent the positioning rod from separating from the through hole, an adjusting screw is in threaded connection with the through hole and tightly pushes against the other end of the positioning rod, the side wall of the positioning rod is provided with a guide groove arranged along the length direction, a guide screw is in threaded connection with a clamping jaw seat and extends into the guide groove, the adjusting screw is provided with steel balls and tightly pushes against the other end of the positioning rod through the steel balls, the end face of each clamping jaw is provided with a guide plate, and the guide plate is provided with a guide pin, and the end part of the guide pin is provided with a ball head guide part matched with a tooth groove of the helical gear; the film clamp comprises a shell, a film, clamping jaws, clamping jaw seats, a balance block and a driving unit, wherein the film is installed at one end of a cavity opening of the shell, the clamping jaws are installed on the clamping jaw seats, and the clamping jaw seats and the balance block correspond to each other one by one and are positioned and clamped on two sides of the film; the elastic piece is a butterfly spring, the butterfly spring is sleeved at the other end of the positioning rod, the upper end of the butterfly spring abuts against the step surface of the positioning rod, and the lower end of the butterfly spring abuts against the limiting piece fixedly connected with the positioning rod; the limiting piece is a clamping spring, and the clamping spring is arranged in a clamping spring groove at the other end of the positioning rod; the end face of the jaw seat is provided with a step, the side face of the jaw and the side face of the step are arc-shaped surfaces and are mutually attached, and the bottom face of the jaw and the end face of the jaw seat are matched in a positioning mode through positioning pins.
2. The compound turning and grinding machine tool for medium and small disc gears according to claim 1, wherein: the Z-axis feeding mechanism comprises a supporting plate, a Z-axis sliding rail pair, a Z-axis ball screw nut pair and a Z-axis servo motor, the workpiece spindle is arranged on the supporting plate, and the supporting plate is in guide fit with the spindle seat through the Z-axis sliding rail pair and in transmission fit with the Z-axis servo motor through the Z-axis ball screw nut pair;
The X-axis feeding mechanism comprises a sliding table, an X-axis sliding rail pair, an X-axis ball screw nut pair and an X-axis servo motor, wherein the spindle seat is fixed on the sliding table, and the sliding table is matched with the lathe bed in a guiding manner through the X-axis sliding rail pair and is matched with the X-axis servo motor in a transmission manner through the X-axis ball screw nut pair.
3. The compound turning and grinding machine tool for medium and small disc gears according to claim 2, wherein: the turning and grinding compound machine tool further comprises a grinding wheel trimmer, and the grinding wheel trimmer is arranged at the lower part of the spindle seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287546.9A CN110842578B (en) | 2019-12-14 | 2019-12-14 | Turning and grinding compound machine tool suitable for medium-small disc gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287546.9A CN110842578B (en) | 2019-12-14 | 2019-12-14 | Turning and grinding compound machine tool suitable for medium-small disc gears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110842578A CN110842578A (en) | 2020-02-28 |
| CN110842578B true CN110842578B (en) | 2024-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911287546.9A Active CN110842578B (en) | 2019-12-14 | 2019-12-14 | Turning and grinding compound machine tool suitable for medium-small disc gears |
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| Country | Link |
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| CN (1) | CN110842578B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012116B (en) * | 2021-12-13 | 2024-05-10 | 宁夏长兴精密机械有限公司 | Double-end-face specialized numerical control lathe with full-automatic feeding mechanism |
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| CN211249104U (en) * | 2019-12-14 | 2020-08-14 | 无锡七机机床有限公司 | Turning and grinding combined machine tool suitable for medium and small disc gears |
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| US3479042A (en) * | 1966-08-19 | 1969-11-18 | Woodworth Co N A | Gear pin with pull-back action |
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| US6145850A (en) * | 1998-10-24 | 2000-11-14 | Smw Autoblok Spannsysteme Gmbh | Diaphragm chuck |
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| CN102398053A (en) * | 2010-09-07 | 2012-04-04 | Smw-奥托布洛克紧固系统有限责任公司 | Diaphragm Chuck |
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Also Published As
| Publication number | Publication date |
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| CN110842578A (en) | 2020-02-28 |
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