CN111168157A - Cambered surface cam processing machine tool - Google Patents
Cambered surface cam processing machine tool Download PDFInfo
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- CN111168157A CN111168157A CN202010145369.7A CN202010145369A CN111168157A CN 111168157 A CN111168157 A CN 111168157A CN 202010145369 A CN202010145369 A CN 202010145369A CN 111168157 A CN111168157 A CN 111168157A
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- 238000005520 cutting process Methods 0.000 claims abstract description 52
- 238000003754 machining Methods 0.000 claims description 29
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
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- 230000005540 biological transmission Effects 0.000 description 4
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical group CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
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- 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/022—Indexing equipment in which only the indexing movement is of importance
- B23Q16/025—Indexing equipment in which only the indexing movement is of importance by converting a continuous movement into a rotary indexing movement
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- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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Abstract
The invention discloses a cambered surface cam processing machine tool, which comprises a three-jaw chuck clamping device, a workpiece cutting device, a top tailstock, a machine tool base and a controller, wherein the three-jaw chuck clamping device is arranged at one end of the machine tool base, the top tailstock is arranged at the other end of the machine tool base, the workpiece cutting device is arranged at one side between the three-jaw chuck clamping device and the top tailstock, a cambered surface cam box, a cutter feeding device, a cutter supporting base and a turntable bearing are arranged between the workpiece cutting device and the machine tool base, the cambered surface cam box is arranged on the machine tool base, the upper end of the cambered surface cam box is fixedly connected with the turntable bearing, one end of an output shaft of an index plate is connected with the cambered surface cam box base, the other end of the output shaft of the index plate penetrates through the cambered surface cam box and is connected with the cutter supporting base, the workpiece cutting device is connected with the cutter supporting base, the invention has the advantages of simple structure, low equipment cost, high processing precision and the like.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a cambered surface cam processing machine tool.
Background
The cambered surface cam mechanism has incomparable superiority in the aspects of dynamic performance, bearing capacity, indexing precision and the like, is praised as an optimal intermittent transmission mechanism and has wide market prospect. However, the processing of the arc cam has higher difficulty, and the common machine tool cannot complete the processing.
By search, CN2015202780578 discloses a utility model of a special machine tool for processing a cambered surface cam, and CN2019101185402 discloses an invention patent of a special machine tool for processing a composite cam, the structure of the two patents adopts a four-axis double-linkage mode to process the arc cam, by arranging two linear shafts and two rotating shafts on the machine tool body and controlling the movement through a numerical control system, the cutter and the worktable for processing the arc cam respectively do reciprocating linear motion along the two linear shafts, the arc cam and the worktable for processing the arc cam do rotating motion through the two rotating shafts, the worktable for processing the arc cam moves along the linear shaft, the arc cam rotates along with the rotating shaft to realize double linkage, the two rotating shafts rotate to ensure that the cutter contacts the cam at any angle, and the two linear shafts are arranged to ensure that any part of the cam is within the reach range of the cutter.
The disadvantages of this structure are: firstly, a four-axis double-linkage numerical control machine tool is adopted to process the cambered surface cam, the machine tool structure is complex, the numerical control system is complex, and the equipment purchase cost is high; secondly, four-axis double linkage is adopted to realize the machining of the cambered surface cam by the cutter, curve interpolation errors exist, continuous curve sections need to be formed by fitting a plurality of straight line sections or a plurality of circular arc sections during programming, the motion rule of the cam can be influenced by the interpolation precision of two coordinate axes, the machining precision of the cambered surface cam can be reduced due to the same chord length and the fitting errors, and the machining precision of the cambered surface cam cannot be guaranteed; thirdly, arc CAMs with different specifications and sizes are processed, CAM profile coordinate points are generated by means of a special arc CAM processing system according to the motion rule and mechanism parameters of the CAMs, a three-dimensional model, a tool track and a processing program are generated by means of CAD/CAM software, or the processing program is generated by means of a more professional CAD/CAM system for arc CAM processing according to the motion rule of the CAMs, the processing effect is tested, and the debugging time is long.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the cambered surface cam processing machine tool which is simple in structure, low in equipment cost and high in processing precision.
The present invention can be achieved by the following means.
The utility model provides a cambered surface cam processing machine tool, includes three-jaw chuck clamping device, work piece cutting device, top tailstock, machine tool base, controller, three-jaw chuck clamping device and work piece cutting device are through controller control, three-jaw chuck clamping device is installed to one end on the machine tool base, top tailstock is installed to the other end, work piece cutting device sets up one side between three-jaw chuck clamping device and top tailstock, its characterized in that: the workpiece cutting device is fixedly connected with the tool supporting base through the tool feeding device, a plurality of roll shafts are uniformly and fixedly connected with the periphery of the dividing plate, the roll shafts are arranged on the roll shafts in a rolling manner, and the axes of the roll shafts are vertical to the axis of the dividing plate, the indexing disc is attached to arc-shaped convex surfaces at two ends of the arc-shaped cam through two rollers, the arc-shaped cam is fixedly sleeved with an arc-shaped cam input shaft, the arc-shaped cam input shaft is fixedly connected with an arc-shaped cam box through a bearing and a bearing seat, one end of the arc-shaped cam input shaft penetrates out of the arc-shaped cam box and is fixedly connected with a second output shaft of a gear box in the three-jaw chuck clamping device, so that the arc-shaped cam is driven to rotate through the three-jaw chuck clamping device, the rotating speed of the arc-shaped cam and a workpiece clamped by the three-jaw chuck is synchronous, and the distance from the arc-shaped cam central line to the indexing disc central line is equal to the distance from the three-jaw chuck central line to the indexing disc.
The three-jaw chuck clamping device comprises a gear box, a three-jaw chuck driving device and a three-jaw chuck, wherein the lower end of the gear box is fixedly connected with a machine tool base, a first output shaft of the gear box is connected with the three-jaw chuck, the first output shaft is connected with a second output shaft through a gear in the gear box, the three-jaw chuck is controlled to open and close through the three-jaw chuck driving device, the three-jaw chuck driving device adopts the prior art, and details are omitted.
The tip tailstock is provided with the tip, and the structure of the tip and the tip tailstock is the same as that of the prior art, so that the description is omitted.
The workpiece cutting device comprises a main shaft supporting seat, a machining main shaft, a cutter and a rotary cutting motor, wherein the machining main shaft is fixedly connected with the main shaft supporting seat through a bearing, one end of the machining main shaft is fixedly connected with the cutter, the other end of the machining main shaft is fixedly connected with the rotary cutting motor, the rotary cutting motor is fixedly connected with the main shaft supporting seat, and the rotary cutting motor is controlled by a controller so that the rotary cutting motor controls the cutter to cut a cam blank.
The cutter feeding device comprises an axial feeding motor, an axial feeding working table, an axial fixed seat, a first lead screw, a first nut, a radial feeding motor, a radial feeding working table, a radial fixed seat, a second lead screw and a second nut, wherein the lower end of the axial fixed seat is fixedly connected with a cutter supporting base, parallel axial sliding rails are arranged on the upper end surface of the axial fixed seat, the first lead screw is arranged between the axial sliding rails and is connected with the axial fixed seat through a bearing and a bearing seat, the first lead screw is driven by the axial feeding motor fixed on the bearing seat or the axial fixed seat, the first nut is in threaded connection with the first lead screw, the lower end of the axial feeding working table is fixedly connected with the first nut, and two sides of the axial feeding working table are respectively in sliding connection with the axial sliding rails arranged on the axial; the lower end of the radial fixed seat is fixedly connected with the axial feeding workbench, the upper end surface is provided with a parallel radial slide rail, a second lead screw is arranged between the radial slide rails and is connected with the radial fixed seat through a bearing and a bearing seat, the second screw rod is driven by a radial feed motor fixed on the bearing seat or the radial fixed seat, a second nut is in threaded connection with the second screw rod, the lower end of the radial feeding workbench is fixedly connected with the second nut, the two sides of the radial feeding workbench are respectively connected with a radial slide rail arranged on the radial fixed seat in a sliding way, the main shaft supporting seat is fixed on the radial feeding worktable, the axial feeding motor and the radial feeding motor are respectively connected with the controller, the axial feeding motor and the radial feeding motor are used for driving and adjusting the positions of the axial feeding workbench and the radial feeding workbench so as to achieve the effect of adjusting the cutting distance between the cutter and the cam blank.
One end of the cambered surface cam input shaft is connected with a second output shaft of the gear box through an electromagnetic clutch, the other end of the cambered surface cam input shaft is connected with a manual position adjusting hand wheel, the electromagnetic clutch is connected with a controller, and the corner position of the cutter supporting base can be adjusted through the manual position adjusting hand wheel, so that the effect of adjusting the initial position of the rotary cutting cutter is achieved.
The invention discloses a radial moving device of a cambered surface cam box, which is arranged between a machine tool base and the cambered surface cam box, the cambered surface cam box radial moving device comprises a sliding table flat plate, a third screw rod, a third nut, a sliding table adjusting hand wheel and a sliding table base, the lower end of the sliding table base is fixedly connected with the machine tool base, the upper end surface is provided with parallel sliding table sliding rails, a third screw rod is arranged between the sliding track of the sliding table and is fixedly connected with the sliding table base through a bearing and a bearing seat, the third screw rod is driven by a sliding table adjusting hand wheel, a third nut is in threaded connection with the third screw rod, the lower end of the sliding table flat plate is fixedly connected with the third nut, two sides of the sliding table flat plate are respectively in sliding connection with a sliding table sliding rail arranged on a sliding table base, the lower end of the cambered cam box is fixed on the sliding table flat plate, so that after the cambered cams with different sizes and specifications are replaced, for adjusting the horizontal radial position of the globoid cam box to enable the globoid cam input shaft to be connected with the second output shaft of the gearbox.
The invention is characterized in that a height adjusting device is arranged between the radial moving device of the cambered cam box and the cambered cam box, the height adjusting device comprises an adjusting screw rod, a slide block, a fixed base and a support plate, the lower end of the fixed base is fixedly connected with a sliding table flat plate, parallel slope slide rails are arranged on the upper end surface of the fixed base, one side of the fixed base is fixedly connected with the support plate, a U-shaped groove is formed in the support plate, an adjusting screw rod is arranged between the slope slide rails, one end of the adjusting screw rod is restrained on the U-shaped groove through a shaft shoulder and slides up and down along the U-shaped groove, the adjusting screw rod is in threaded connection with the slide block, two sides of the lower end surface of the slide block are inclined surfaces and are in sliding connection with the slope slide rails arranged on the fixed base, the upper end surface of the slide block is a horizontal plane, the adjusting screw rod, meanwhile, the cutter supporting base can be adjusted to be horizontally placed.
The invention discloses a rotary table bearing, which is characterized in that a plurality of cutter height adjusting devices are circumferentially arrayed below a rotary table bearing by taking the central line of the rotary table bearing as the center, each cutter height adjusting device comprises an adjusting sleeve base and an adjusting sleeve upper seat, the adjusting sleeve base is fixedly connected with the upper end of a cambered surface cam box, the adjusting sleeve upper seat is fixedly connected with the lower end of the rotary table bearing, the adjusting sleeve base is in threaded connection with the adjusting sleeve upper seat, and the heights of cutters are adjusted by matching the adjusting sleeve base with the adjusting sleeve upper seat, so that the central line of the cutter and the central line of a cam blank are coplanar.
The encoder is fixedly connected to one side of a second output shaft of the gear box through an encoder support frame, a first synchronous belt pulley is sleeved on a main shaft of the encoder, a second synchronous belt pulley is sleeved on the second output shaft of the gear box, the first synchronous belt pulley and the second synchronous belt pulley are connected through a synchronous belt, and the encoder is arranged for measuring the rotating angle and the rotating speed of the output shaft of the gear box so as to measure the rotating angle of the dividing disc and further adjust the position and the time of axial and radial feeding.
The invention has the beneficial effects that: the cambered cam box is used as a copied cambered cam mechanism, the first output shaft and the second output shaft of the gear box drive the cambered cam in the cambered cam box and a cam blank clamped by the three-jaw chuck to rotate at the same speed and in the same direction, the output shaft of the dividing plate drives the cutter to rotate at the same speed and in the same direction as the dividing plate, and the cutter and the cam blank are used for simulating the motion rules of the cambered cam and the dividing plate to process, so that the equipment is simple, the development period is short, and the cost is low; the machining method belongs to the generation method machining, the machining is finished by simulating the meshing of a roller and a cam by using a cutter and a cam blank, and the machining precision is high; the self-copying transmission of the cambered cams can be realized by replacing the required cambered cams and adjusting the relative positions by utilizing the motion rule of the cambered cams.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
Fig. 4 is a schematic structural view of the cambered cam box radial moving device and the height adjusting device of the invention.
Fig. 5 is a structural sectional view of the cambered cam box radial moving device.
Fig. 6 is a schematic view of the height adjusting means.
Fig. 7 is a sectional view of the connecting structure of the cambered cam box and the tool supporting base.
Fig. 8 is a schematic diagram of the working principle of the present invention.
FIG. 9 is a schematic drawing of the constant diameter machining and non-constant diameter machining feeds of the present invention.
Fig. 10 is a schematic structural view of the fixing plate of the present invention.
FIG. 11 is a sectional view of the structure of the adjusting sleeve of the present invention.
FIG. 12 is a schematic view of the connection of an encoder of the present invention to a second output shaft of a gearbox.
The symbols in the drawings illustrate that:
a gear box-1, a gear box input shaft-101, a gear box first output shaft-102, a gear box second output shaft-103, a machine tool base-2, a cambered cam box-3, a cambered cam input shaft-301, a graduated disk output shaft-302, a manual position adjusting hand wheel-303, a cambered cam-304, a graduated disk-305, a lower end cover-306, a graduated disk bearing-307, an upper end cover-308, an end surface bearing-309, a box body-310, a supporting disk-311, a cutter feeding device-4, a radial feeding motor-401, a radial fixing seat-402, an axial feeding motor-403, an axial fixing seat-404, a centre tailstock-5, a centre-501, a tailstock adjusting hand wheel-502, a height adjusting device-6, a centre-501, a centre-adjusting, An adjusting screw rod-601, a slide block-602, a fixed base-603, a support plate-604, a cutter supporting base-7, a cambered cam box radial moving device-8, a sliding table flat plate-801, a third screw rod-802, a sliding table adjusting hand wheel-803, a sliding table base-804, a fastening screw-805, a front end cover-806, a screw rod bearing-807, a rear end cover-808, a third nut-809, a fixing bolt-810, a cam blank-9, an electromagnetic clutch-10, a three-jaw chuck-11, a bolt-12, a fixing plate-13, a workpiece cutting device-14, a processing spindle-1401, a rotary cutting motor-1402, a cutter-1403, an adjusting sleeve-15, an adjusting sleeve base-1501, an adjusting sleeve upper base-1502, a cutter-1403, a cutter and a cutter, An encoder-16, a first synchronous belt pulley 1701, a second synchronous belt pulley-1702, a synchronous belt-18, a flat key-19 and an adjusting sleeve fixing seat-20.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1 (electrically adjusting the initial position of the tool on the tool support base):
as shown in the attached drawings, the cambered surface cam processing machine tool comprises a three-jaw chuck clamping device, a workpiece cutting device 14, a tip tailstock 5, a machine tool base 2 and a controller, wherein the three-jaw chuck clamping device and the workpiece cutting device are controlled by the controller, the three-jaw chuck clamping device is arranged at one end of the machine tool base 2, the tip tailstock 5 is arranged at the other end of the machine tool base 2, the workpiece cutting device 14 is arranged at one side between the three-jaw chuck clamping device and the tip tailstock, the cambered surface cam processing device is arranged between the workpiece cutting device 14 and the machine tool base 2 and comprises a cambered surface cam box 3, a cutter feeding device 4, a cutter supporting base 7 and a turntable bearing, the cambered surface cam box 3 is arranged on the machine tool base 2, a cambered surface cam 304, an index plate 305, a cambered surface cam input shaft 301, an index plate output shaft 302, a roller shaft and a roller are, the upper end of the cambered cam box 3 is fixedly connected with a turntable bearing, one end of an output shaft 302 of the indexing plate is fixedly sleeved with an indexing plate 305 and is connected with a base of the cambered cam box through a bearing, the other end of the output shaft penetrates through the cambered cam box and is fixedly connected with the lower end of a cutter supporting base 7 through the turntable bearing, a workpiece cutting device 14 is fixedly connected with the cutter supporting base 7 through a cutter feeding device 4, a plurality of roller shafts are uniformly and fixedly connected with the periphery of the indexing plate, rollers are arranged on the roller shafts in a rolling manner, a needle roller bearing is used as the roller in the embodiment, the axis of each roller shaft is vertical to the axis of the indexing plate, the indexing plate is attached to the arc convex surfaces at two ends of the cambered cam through two rollers, the cambered cam is fixedly sleeved with an input shaft of the cambered cam, an input shaft 301 of the cambered cam is fixedly connected with the cambered cam box 3 through the bearing and a bearing seat, and one The second output shaft is fixedly connected to facilitate the driving of the arc cam to rotate through the three-jaw chuck clamping device, so that the rotation speed of the arc cam and the rotation speed of a workpiece clamped by the three-jaw chuck are synchronous, and the distance from the center line of the arc cam to the center line of the index plate is equal to the distance from the center line of the three-jaw chuck to the center line of the index plate, so that the effect of simulating the shape of the arc cam to process the workpiece is achieved.
The three-jaw chuck clamping device comprises a gear box 1, a three-jaw chuck driving device and a three-jaw chuck 11, wherein the gear box 1 is provided with a gear box input shaft 101, a gear box first output shaft 102 and a gear box second output shaft 103 in the embodiment, the lower end of the gear box 1 is fixedly connected with a machine tool base, the gear box first output shaft 102 is connected with the three-jaw chuck 11, the gear box input shaft 101 is connected with a three-jaw chuck driving motor, the first output shaft is connected with the second output shaft through a gear in the gear box, the three-jaw chuck is controlled to open and close through the three-jaw chuck driving device, the gear box first output shaft 102 is arranged right above the gear box second output shaft 103 in the embodiment, the rotating speeds of the gear box first output shaft and the gear box second output shaft are kept the same, the gear box input shaft and the gear box first output shaft in the embodiment are different, the three-jaw chuck and the three-jaw chuck driving device adopt the prior art, and the description is omitted. The centre tailstock 5 is provided with a centre 501 and a tailstock adjusting hand wheel 502, the first output shaft 102 of the gear box is fixedly connected with a three-jaw chuck 11, the three-jaw chuck 11 clamps one end of the cam blank 9, and the other end of the cam blank is adjusted in position of the centre 501 through the tailstock adjusting hand wheel 502, so that the centre is abutted against the cam blank. The structure of the tip and the tip tailstock is the same as that of the prior art, and the description is omitted. The workpiece cutting device comprises a processing main shaft 1401, a rotary cutting motor 1402, a cutter 1403 and a main shaft supporting seat, wherein the processing main shaft 1401 is fixedly connected with the main shaft supporting seat through a bearing, one end of the processing main shaft 1401 is fixedly connected with the cutter 1403, the other end of the processing main shaft 1401 is fixedly connected with the rotary cutting motor 1402, and the rotary cutting motor is fixedly connected with the main shaft supporting seat. The rotary cutting motor is controlled by the controller, so that the rotary cutting motor controls the cutter to cut the cam blank. The cutter feeding device 4 comprises an axial feeding motor 403, an axial feeding workbench, an axial fixed seat 404, a first lead screw, a first nut, a radial feeding motor 401, a radial feeding workbench, a radial fixed seat 402, a second lead screw and a second nut, wherein the lower end of the axial fixed seat 404 is fixedly connected with the cutter supporting base 7, parallel axial slide rails are arranged on the upper end surface of the axial fixed seat, the first lead screw is arranged between the axial slide rails and is connected with the axial fixed seat 404 through a bearing and a bearing seat, the first lead screw is driven by the axial feeding motor 403 fixed on the bearing seat or the axial fixed seat, the first nut is in threaded connection with the first lead screw, the lower end of the axial feeding workbench is fixedly connected with the first nut, and two sides of the axial feed workbench are respectively in sliding connection with the axial slide rails arranged on the axial fixed seat; the lower end of the radial fixed seat is fixedly connected with the axial feeding workbench, the upper end surface is provided with a parallel radial slide rail, a second lead screw is arranged between the radial slide rails and is connected with the radial fixed seat through a bearing and a bearing seat, the second lead screw is driven by a radial feed motor 401 fixed on the bearing seat or the radial fixed seat, a second nut is in threaded connection with the second lead screw, the lower end of the radial feeding workbench is fixedly connected with the second nut, the two sides of the radial feeding workbench are respectively connected with a radial slide rail arranged on the radial fixed seat in a sliding way, the main shaft supporting seat is fixed on the radial feeding worktable, the axial feeding motor and the radial feeding motor are respectively connected with the controller, the axial feeding motor and the radial feeding motor are used for driving and adjusting the positions of the axial feeding workbench and the radial feeding workbench so as to achieve the effect of adjusting the cutting distance between the cutter and the cam blank. In the embodiment, the axial feed motor and the first lead screw are respectively connected with the radial feed motor and the second lead screw through the shaft couplings.
In this embodiment, the axial feed table, the radial feed table, and the tool rotate with the tool support base. The axial feeding workbench and the radial feeding workbench are driven to move in an electric mode and used for adjusting the axial and radial positions of the cutter and the cam blank.
A cambered cam box radial moving device 8 is arranged between the machine tool base 2 and the cambered cam box 3, the cambered cam box radial moving device 8 comprises a sliding table flat plate 801, a third screw rod 802, a sliding table adjusting hand wheel 803, a sliding table base 804 and a third nut 809, the sliding table base 804 is fixed on the machine tool base, parallel sliding table sliding rails are arranged on the upper end surface, the third screw rod 802 is arranged between the sliding table sliding rails, two ends of the third screw rod 802 pass through screw rod bearings 807 and are respectively covered by a front end cover 806 and a rear end cover 808, the front end cover and the rear end cover are fixedly connected with the sliding table base 804 through fixing bolts 810, one end of the third screw rod is fixedly connected with the sliding table adjusting hand wheel 803 through fastening bolts 805, the third screw rod 802 is driven by the sliding table adjusting hand wheel 803, the third nut 809 is in threaded connection with the third screw rod 802, the lower end of the sliding table flat plate 801 is fixedly connected with the third nut 809, after the position is adjusted, the lower end of the cambered cam box 3 is fixed on the sliding table flat plate 801 through the bolt 12, so that after cambered cams with different sizes and specifications are replaced, the second output shaft of the gear box can be connected with the input shaft of the cambered cam, and the center distance from the center of the cutter supporting base to the cam blank is equal to the center distance from the center of the cambered cam in the cambered cam box to the indexing disc.
A height adjusting device 6 is arranged between the radial moving device 8 of the arc cam box and the arc cam box 3, the height adjusting device 6 comprises an adjusting screw 601, a slide block 602, a fixed base 603 and a support plate 604, the lower end of the fixed base 603 is fixedly connected with a sliding table flat plate through bolts, welding and other modes, parallel slope slide rails are arranged on the upper end surface, the support plate is fixedly connected with one side of the fixed base, a U-shaped groove is formed in the support plate 604, the adjusting screw 601 is arranged between the slope slide rails, one end of the adjusting screw 601 is constrained on the U-shaped groove through a shaft shoulder and slides up and down along the U-shaped groove, the adjusting screw is in threaded connection with the slide block, two sides of the lower end surface of the slide block are inclined planes and are in sliding connection with the slope slide rails arranged on the fixed base, the upper end surface of the slide block is a horizontal plane, the upper end surface of the slide block, the adjusting screw rod slides up and down along the U-shaped groove through the shaft shoulder, and is used for adjusting the height of the cambered cam box to enable the cambered cam input shaft to be connected with the second output shaft of the gear box, and meanwhile, the adjusting screw rod can be adjusted to enable the cutter supporting base to be horizontally placed. After the position is adjusted, the cambered cam box is fixed on the sliding table flat plate through the bolt 12.
The rotary table bearing is characterized in that a plurality of cutter height adjusting devices are arranged below the rotary table bearing by taking a rotary table bearing central line as a central circumferential array, each cutter height adjusting device is an adjusting sleeve 15 and comprises an adjusting sleeve base 1501 and an adjusting sleeve upper seat 1502, the adjusting sleeve base 1501 is fixedly connected with the upper end of the cambered surface cam box, the adjusting sleeve upper seat 1502 is fixedly connected with the lower end of the rotary table bearing, the adjusting sleeve base is in threaded connection with the adjusting sleeve upper seat, and the heights of cutters are adjusted through the matching of the adjusting sleeve base and the adjusting sleeve upper seat, so that the central line of the cutters and the central line of a cam blank are coplanar. In the embodiment, the output shaft of the dividing plate is in transition fit with the central hole of the cutter supporting base, and the output shaft of the dividing plate is fixedly connected with the cutter supporting base through the flat key 19 after the position of the cutter is adjusted through the adjusting sleeve.
The encoder 16 is fixedly connected to one side of a second output shaft of the gearbox through an encoder support frame, a first synchronous belt pulley 1701 is sleeved on a main shaft of the encoder 16, a second synchronous belt pulley 1702 is sleeved on the second output shaft of the gearbox, the first synchronous belt pulley 1701 is connected with the second synchronous belt pulley 1702 through a synchronous belt 1703, and the encoder is arranged for measuring the rotating angle and the rotating speed of the output shaft of the gearbox so as to measure the rotating angle of the index plate and further adjust the position and the time of axial feeding and radial feeding.
In the embodiment, in order to ensure that the machining precision of the cam blank is highest, the central line of the cambered cam is parallel to the central line of the cam blank, the central line of the cutter is coplanar with the central line of the cam blank, the vertical distance from the central line of the cambered cam to the central line of the index plate is equal to the vertical distance from the central line of the cam blank to the central line of the index plate, and the first output shaft of the gear box and the second output shaft of the gear box rotate at the same speed and in.
In the machining process, a cutter with the radius smaller than that of the dividing disc roller can be used, non-equal-diameter machining is carried out through axial feeding and radial feeding, the radius of the cutter used in final finish machining is equal to that of the dividing disc roller, and therefore the motion rule of the cambered surface cam for transmission is completely copied to the cam to be machined.
In the embodiment, the three-jaw chuck driving motor, the rotary cutting motor, the axial feeding motor, the radial feeding motor and the electromagnetic clutch are respectively connected with the controller, and the controller adopts a PLC (programmable logic controller).
Above-mentioned describe be equipped with the slewing bearing between cambered surface cam case and the cutter support base, keep the stability of cutter support base through slewing bearing, concrete structure has two kinds of modes:
the first method comprises the following steps: the stability of cutter support base is ensured through setting up slewing bearing between cambered surface cam case and the cutter support base, be equipped with perforation and fixedly connected with slewing bearing on the cambered surface cam case upper cover, graduated disk output shaft 302 one end and graduated disk 305 fixed sleeve joint and be connected with cambered surface cam case base through the bearing, the graduated disk output shaft 302 other end is worn out cambered surface cam case upper cover perforation and is connected with cutter support base lower extreme through slewing bearing, graduated disk output shaft and slewing bearing inner circle fixed connection, the slewing bearing inner circle is through bolt and cutter support base fixed connection, use slewing bearing can keep the stability of cutter support base. The output shaft of the dividing plate can also be fixedly connected with the inner ring of the rotary bearing and the cutter supporting base.
The mode of arranging the cutter height adjusting device below the slewing bearing is as follows:
the lower end of the rotary bearing is fixedly connected with the upper seat of the adjusting sleeve through bolts, welding and the like, the base of the adjusting sleeve is fixed at the upper end of the cambered surface cam box through bolts, the output shaft of the dividing plate and the inner ring of the rotary bearing can be fixedly connected through a flat key, and the inner ring of the rotary bearing is fixedly connected with the tool supporting base through bolts. The output shaft of the dividing plate can also be fixedly connected with the inner ring of the rotary bearing and the central hole of the cutter supporting base through flat keys.
And the second method comprises the following steps: one end of the indexing disc output shaft 302 is fixedly sleeved with the indexing disc 305 and is connected with the base of the box body 310 through an indexing disc bearing 307, and the lower end cover 306 is covered on the indexing disc output shaft 302, and the other end of the indexing disc output shaft passes through a through hole of an upper end cover 308 of the box body through the indexing disc bearing 307. A supporting disk 311 and a cutter supporting base 7 are sequentially arranged above the cambered surface cam box, an end face bearing 309 is installed between the supporting disk and the cutter supporting base 7, the cutter supporting base rotates through the end face bearing, an indexing disk output shaft 302 penetrates out of an upper end cover, a supporting disk center hole and the lower end of the cutter supporting base are fixedly connected through bolts, and the indexing disk can be fixed in a mode of interference fit, excessive fit through a flat key, a retaining ring for a shaft, a thrust ring and the like. The lower end of the supporting plate is provided with at least two fixing plates along the circumferential direction by taking the central line of the supporting plate as the center, one end of each fixing plate is provided with a circular bolt hole, the other end of each fixing plate is provided with a long hole, the inner wall of each long hole is in a step shape, one end of each fixing plate is fixedly connected with one corner of the cambered cam box through the bolt and the bolt hole, the other end of each fixing plate is fixedly connected with the supporting plate through the long holes and the bolts, and the step-shaped long holes are formed. Through setting up supporting disk and fixed plate both can ensure the stability of cutter support base, produce the swing when preventing that the cutter from supporting the base and rotating, also can realize not unidimensional cambered surface cam case's flexibility, quick installation.
The mode that sets up cutter height adjusting device below the supporting disk does:
in order to ensure that the center line of the cutter and the center line of the cam blank are coplanar, an adjusting sleeve fixing seat is arranged below the supporting disk, at least two fixing plates are arranged at the lower end of the adjusting sleeve fixing seat along the circumferential direction by taking the center line of the adjusting sleeve fixing seat as the center, one end of each fixing plate is fixedly connected with one corner of the cambered cam box through a bolt and a bolt hole, the other end of each fixing plate is fixedly connected with the lower end of the adjusting sleeve fixing seat through a long hole and a bolt, the adjusting sleeve base is fixedly connected with the upper end of the adjusting sleeve fixing seat, the upper seat of the adjusting sleeve is fixedly connected with the lower end of the supporting disk, the index plate output shaft 302 penetrates through the upper end cover and the center hole of the adjusting sleeve fixing seat, and. After the height of the cutter is adjusted through the adjusting sleeve, the output shaft of the dividing plate is fixedly connected with the central hole at the lower end of the cutter supporting base through the flat key.
As shown in the accompanying drawings, in this embodiment, the lower end of the adjustment sleeve fixing seat is provided with four fixing plate holes at equal intervals along the circumferential direction around the center line of the adjustment sleeve fixing seat, and flexible installation of the cambered cam boxes with different sizes is realized by adjusting the angles of the fixing plates according to the positions of the bolt holes in the four corners of the cambered cam box and the positions of the four fixing plate holes in the lower end of the adjustment sleeve fixing seat.
When the cambered surface cam input shaft rotates, the cambered surface cam is driven to rotate, the cambered surface cam drives the dividing plate to rotate, the dividing plate rotates to drive the dividing plate output shaft to rotate, and the dividing plate output shaft drives the cutter supporting base to rotate on the supporting plate through the end face bearing.
When the height adjusting device is used, the cambered cam box is placed on a sliding block of the height adjusting device, a third lead screw is driven by a sliding table adjusting hand wheel of the cambered cam box radial moving device to drive the cambered cam box and the cutter supporting base to move radially, the sliding block is driven by an adjusting screw rod of the height adjusting device to move along a slope sliding rail of the fixed base, the height of the cambered cam box from the machine tool base is adjusted, the cambered cam input shaft and the second output shaft of the gear box can be connected, the cutter supporting base is ensured to be kept horizontal by the height adjusting device, the second output shaft of the gear box and the cambered cam input shaft are fixedly connected, the height of a cutter is adjusted by the cutter height adjusting device, the central line of the cutter and the central line of a cam blank are coplanar, and then the cutter supporting base is fixedly connected with; one end of the cam blank is clamped by a three-jaw chuck, the other end of the cam blank is abutted tightly through a tailstock center, a three-jaw chuck driving motor is started to drive a first output shaft and a second output shaft of a gear box to rotate at the same speed and in the same direction to drive a cambered surface cam and an index plate to rotate, the output shaft of the index plate drives a cutter supporting base to rotate, the initial position of the corner of the cutter supporting base is adjusted, after the position is adjusted, the three-jaw chuck driving motor stops driving, an axial feeding working table and a radial feeding working table are driven to move through a cutter feeding device, the cutter is driven to move axially and radially, and the initial position of the cutter away from; after the position of the cutter is adjusted from the cam blank, a start button on a control panel is pressed, a PLC controller controls a three-jaw chuck driving motor to drive an input shaft of a gear box to rotate, the input shaft is converted into a first output shaft of the gear box and a second output shaft of the gear box to rotate at the same speed and in the same direction through the gear box to drive a cambered cam and the cam blank to rotate at the same speed and in the same direction, the rotating angle and the rotating speed of the second output shaft of the gear box are recorded through an encoder, an output shaft of an index plate drives a cutter supporting base to rotate, the PLC controller controls a rotary cutting motor to drive a cutter to do cutting motion, the cutter is cut into the cam blank, the cutting amount is controlled, the cutter processes a profile surface on the cam blank according to the motion rule of the cambered cam, the motion rule between the cambered cam and the index plate is copied on the cam blank by the cutter, after one round of processing is, after the position of the cutter away from the cam blank is adjusted, the first output shaft and the second output shaft of the gear box rotate, the rotating direction is opposite to the rotating direction of the previous time, the cutter supporting base rotates along the reverse direction of the previous time to drive the cutter to process, after the processing is finished, the cutter stops cutting, the axial position and the radial position of the cutter are adjusted through the cutter feeding device again, and after multiple times of rough machining and fine machining, the cam blank is copied into a high-precision cambered surface cam.
When the cambered cams of different models need to be processed, the cambered cam box 3 is replaced by a cambered cam mechanism needing to be copied, the position of an input shaft of the cambered cam is adjusted through a radial moving device of the cambered cam box and a height adjusting device, the input shaft of the cambered cam is connected with a second output shaft of the gear box, the height of a cutter is adjusted through a cutter height adjusting device, a cutter supporting base is fixedly connected with an output shaft of an index plate, a proper cam blank is replaced, the rotating angle of the cutter supporting base and the position of the cutter away from the cam blank are adjusted, a button of the processing shape is selected on a control panel, the button is clicked to be started, a rotary cutting motor drives the cutter to process the cam blank, the machine tool is simple in structural design, step precision errors of numerical control interpolation do not exist, and high-precision cambered cams can.
Example 2 (manual adjustment of initial position of tool on tool support base):
a cambered surface cam processing machine tool comprises a three-jaw chuck clamping device, a workpiece cutting device 14, a tip tailstock 5, a machine tool base 2, a cambered surface cam processing device and a controller, wherein the cambered surface cam processing device comprises a cambered surface cam box 3, a cutter feeding device 4, a cutter supporting base 7 and a turntable bearing. The difference between this embodiment and embodiment 1 is that a manual position adjusting hand wheel is fixedly connected to one end of the arc cam input shaft, the tool supporting base is driven to rotate by the manual position adjusting hand wheel, the effect of adjusting the initial position of the tool is achieved, other structures and connection relations are the same as those in embodiment 1, and the embodiment is not repeated.
The structure of the initial position of the manual adjustment tool is that one end of the cambered surface cam input shaft 301 is connected with the second output shaft 103 of the gear box through an electromagnetic clutch 10, the other end of the cambered surface cam input shaft is connected with the manual position adjustment hand wheel 303, the electromagnetic clutch is connected with the controller, the controller controls the power on and power off of the electromagnetic clutch, the second output shaft of the gear box is fixedly connected with the cambered surface cam input shaft when the power is on, and the second output shaft of the gear box is disconnected with the cambered surface cam input shaft when the power is off.
When the height adjusting device is used, the cambered cam box is placed on the sliding block of the height adjusting device, the third lead screw is driven by the adjusting hand wheel of the sliding table adjusting hand wheel of the cambered cam box radial moving device to drive the cambered cam box and the cutter supporting base to move radially, the sliding block is driven by the adjusting screw rod of the height adjusting device to move along the slope sliding rail of the fixed base, the height of the cambered cam box from the machine tool base is adjusted, the cambered cam input shaft is connected with the second output shaft of the gear box, the cutter supporting base is ensured to be kept horizontal by the height adjusting device, the height of the cutter is adjusted by the cutter height adjusting device, the central line of the cutter and the central line of a cam blank are coplanar, and then the cutter supporting base is fixedly connected with the; one end of the cam blank is clamped by a three-jaw chuck, the other end of the cam blank is abutted by a tailstock center, a cambered surface cam and an index plate are driven to rotate through manual position adjusting hand wheel adjustment, an output shaft of the index plate drives a cutter supporting base to rotate, the initial position of the corner of the cutter supporting base is adjusted, after the position is adjusted, an axial feeding workbench and a radial feeding workbench are driven to move through a cutter feeding device, a cutter is driven to move axially and radially, and the initial position of the cutter away from the cam blank is adjusted; after the cutter is adjusted from the initial position of the cam blank, the electromagnetic clutch is electrified to fixedly connect the second output shaft of the gear box with the input shaft of the cambered cam, a start button on a control panel is pressed, the PLC controls the three-jaw chuck driving motor to drive the input shaft of the gear box to rotate, the input shaft of the gear box is converted into the first output shaft of the gear box and the second output shaft of the gear box to rotate at the same speed and in the same direction through the gear box to drive the cambered cam and the cam blank to rotate at the same speed and in the same direction, the rotation angle and the rotation speed of the second output shaft of the gear box are recorded through an encoder, the output shaft of the dividing plate drives the cutter supporting base to rotate, the PLC controls the rotary cutting motor to drive the cutter to perform cutting motion, the cutter cuts into the cam blank and controls the cutting amount, the cutter processes profile surfaces on the cam blank according, after one round of processing is finished, a rotary cutting motor controls a cutter to stop cutting, the positions of an axial feeding workbench and a radial feeding workbench are adjusted, after the position of the cutter away from a cam blank is adjusted, the rotating directions of a first output shaft and a second output shaft of a gear box are opposite to the rotating direction of the previous time, a cutter supporting base drives the cutter to process along the reverse rotation of the previous time, after the processing is finished, the axial position and the radial position of the cutter are adjusted again through a cutter feeding device, and after multiple times of rough machining and fine machining, the cam blank is copied into a high-precision cambered surface cam.
When the cambered cams of different models need to be processed, the cambered cam box 3 is replaced by a cambered cam mechanism needing to be copied, the position of an input shaft of the cambered cam is adjusted through a radial moving device of the cambered cam box and a height adjusting device, the input shaft of the cambered cam is connected with a second output shaft of the gear box, the height of a cutter is adjusted through a cutter height adjusting device, a cutter supporting base is fixedly connected with an output shaft of an index plate, a proper cam blank is replaced, the rotating angle of the cutter supporting base and the position of the cutter away from the cam blank are adjusted, a button of the processing shape is selected on a control panel, the button is clicked to be started, a rotary cutting motor drives the cutter to process the cam blank, the machine tool is simple in structural design, step precision errors of numerical control interpolation do not exist, and high-precision cambered cams can.
The invention has the beneficial effects that: the cambered cam box is used as a copied cambered cam mechanism, the first output shaft and the second output shaft of the gear box drive a cambered cam in the cambered cam box and a cam blank clamped by the three-jaw chuck to rotate at the same speed and in the same direction, the output shaft of the dividing plate drives the cutter to rotate at the same speed and in the same direction as the dividing plate, and the cutter and the cam blank are used for simulating the motion rules of the cambered cam and the dividing plate to process, so that the equipment is simple, the development period is short, and the cost is low; the machining method belongs to the generation method machining, the machining is finished by simulating the meshing of a roller and a cam by using a cutter and a cam blank, and the machining precision is high; the self-copying transmission of the cambered cams can be realized by replacing the required cambered cams and adjusting the relative positions by utilizing the motion rule of the cambered cams.
Claims (10)
1. The utility model provides a cambered surface cam processing machine tool, includes three-jaw chuck clamping device, work piece cutting device, top tailstock, machine tool base, controller, three-jaw chuck clamping device and work piece cutting device are through controller control, three-jaw chuck clamping device is installed to one end on the machine tool base, top tailstock is installed to the other end, work piece cutting device sets up one side between three-jaw chuck clamping device and top tailstock, its characterized in that: the workpiece cutting device is fixedly connected with the tool supporting base through the tool feeding device, a plurality of roll shafts are uniformly and fixedly connected with the periphery of the dividing plate, the roll shafts are arranged on the roll shafts in a rolling manner, and the axes of the roll shafts are vertical to the axis of the dividing plate, the indexing disc is attached to arc-shaped convex surfaces at two ends of the arc-shaped cam through two rollers, the arc-shaped cam is fixedly sleeved with an arc-shaped cam input shaft, the arc-shaped cam input shaft is fixedly connected with an arc-shaped cam box through a bearing and a bearing seat, one end of the arc-shaped cam input shaft penetrates out of the arc-shaped cam box and is fixedly connected with a second output shaft of a gear box in the three-jaw chuck clamping device, and the distance from the arc-shaped cam central line to the indexing disc central line is equal to the distance from the three-jaw chuck central line to the cutter supporting base central.
2. The globoidal cam machine tool of claim 1, wherein: the three-jaw chuck clamping device comprises a gear box, a three-jaw chuck driving device and a three-jaw chuck, the lower end of the gear box is fixedly connected with a machine tool base, a first output shaft of the gear box is connected with the three-jaw chuck, the first output shaft is connected with a second output shaft through a gear in the gear box, and the three-jaw chuck is controlled to be opened and closed through the three-jaw chuck driving device.
3. The globoidal cam machine tool of claim 1, wherein: and the tip tailstock is provided with a tip.
4. The globoidal cam machine tool of claim 1, wherein: the workpiece cutting device comprises a main shaft supporting seat, a machining main shaft, a cutter and a rotary cutting motor, wherein the machining main shaft is fixedly connected with the main shaft supporting seat through a bearing, one end of the machining main shaft is fixedly connected with the cutter, the other end of the machining main shaft is fixedly connected with the rotary cutting motor, the rotary cutting motor is fixedly connected with the main shaft supporting seat, and the rotary cutting motor is controlled through a controller.
5. The globoidal cam machine tool of claim 4, wherein: the cutter feeding device comprises an axial feeding motor, an axial feeding workbench, an axial fixed seat, a first lead screw, a first nut, a radial feeding motor, a radial feeding workbench, a radial fixed seat, a second lead screw and a second nut, wherein the lower end of the axial fixed seat is fixedly connected with a cutter supporting base, parallel axial sliding rails are arranged on the upper end face of the axial fixed seat, the first lead screw is arranged between the axial sliding rails and is connected with the axial fixed seat through a bearing and a bearing seat, the first lead screw is driven by the axial feeding motor fixed on the bearing seat or the axial fixed seat, the first nut is in threaded connection with the first lead screw, the lower end of the axial feeding workbench is fixedly connected with the first nut, and two sides of the axial feeding workbench are respectively in sliding connection with the axial sliding rails arranged on the axial fixed seat; radial fixing base lower extreme and axial feed workstation fixed connection are equipped with parallel radial slide rail on the up end, be equipped with the second lead screw between the radial slide rail, the second lead screw is connected with radial fixing base through bearing, bearing frame, the second lead screw is through fixing the radial feed motor drive on bearing frame or radial fixing base, second nut and second lead screw threaded connection, radial feed workstation lower extreme and second nut fixed connection, both sides respectively with radial slide rail sliding connection who is equipped with on the radial fixing base, the main shaft supporting seat is fixed on radial feed workstation, axial feed motor, radial feed motor are connected with the controller respectively.
6. The globoidal cam machine tool of claim 2, wherein: one end of the cambered surface cam input shaft is connected with a second output shaft of the gear box through an electromagnetic clutch, the other end of the cambered surface cam input shaft is connected with a manual position adjusting hand wheel, and the electromagnetic clutch is connected with a controller.
7. The globoidal cam machine tool of any one of claims 1-6, wherein: the arc cam box radial moving device is arranged between the machine tool base and the arc cam box and comprises a sliding table flat plate, a third lead screw, a third nut, a sliding table adjusting hand wheel and a sliding table base, the lower end of the sliding table base is fixedly connected with the machine tool base, parallel sliding table sliding rails are arranged on the upper end face of the sliding table base, the third lead screw is arranged between the sliding table sliding rails and is fixedly connected with the sliding table base through a bearing and a bearing seat, the third lead screw is driven by the sliding table adjusting hand wheel, the third nut is in threaded connection with the third lead screw, the lower end of the sliding table flat plate is fixedly connected with the third nut, two sides of the sliding table sliding rails are respectively in sliding connection with the sliding table base, and the lower end of the arc cam box is fixed on the sliding.
8. The globoidal cam machine tool of claim 7, wherein: be equipped with high adjusting device between cambered surface cam box radial movement device and the cambered surface cam box, high adjusting device includes adjusting screw, slider, unable adjustment base, backup pad, unable adjustment base lower extreme and the dull and stereotyped fixed connection of slip table are equipped with parallel slope slide rail on the up end, unable adjustment base one side fixedly connected with backup pad, it has the U-shaped groove to open in the backup pad, be equipped with adjusting screw between the slope slide rail, adjusting screw one end through the shaft shoulder restraint on the U-shaped groove and along the U-shaped groove slip from top to bottom, adjusting screw and slider threaded connection, terminal surface both sides are the inclined plane under the slider and with the slope slide rail sliding connection that is equipped with on the unable adjustment base, the slider up end is the horizontal plane.
9. The globoidal cam machine tool of claim 8, wherein: the cutter height adjusting device comprises an adjusting sleeve base and an adjusting sleeve upper seat, the adjusting sleeve base is fixedly connected with the upper end of the cambered cam box, the adjusting sleeve upper seat is fixedly connected with the lower end of the turntable bearing, and the adjusting sleeve base is in threaded connection with the adjusting sleeve upper seat.
10. The globoidal cam machine tool of claim 2 or 6, wherein: the synchronous belt type gearbox is characterized in that an encoder is fixedly connected to one side of a second output shaft of the gearbox through an encoder support frame, a first synchronous belt pulley is sleeved on a main shaft of the encoder, a second synchronous belt pulley is sleeved on the second output shaft of the gearbox, and the first synchronous belt pulley is connected with the second synchronous belt pulley through a synchronous belt.
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| CN111168157B (en) | 2020-10-30 |
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