CN100484695C - Processing method and apparatus for rack - Google Patents
Processing method and apparatus for rack Download PDFInfo
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- CN100484695C CN100484695C CNB2007100196996A CN200710019699A CN100484695C CN 100484695 C CN100484695 C CN 100484695C CN B2007100196996 A CNB2007100196996 A CN B2007100196996A CN 200710019699 A CN200710019699 A CN 200710019699A CN 100484695 C CN100484695 C CN 100484695C
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Abstract
A rack machining comprises drilling on the blank, cutting slot along the tangential line of the hole, milling the gear slot to form the rack, with less grinding effort and machining time with improved machining efficiency. The rack machining equipment comprises a machine base, working bench along the X axis in action, vertical post along Y axis, beam fixed with the post, No.2 milling device on the said beam along the Z axis in motion, with the second milling device composed No.2 generator, rotor shaft of the No.2 generator connected with No.2 gear box in motion, No.2 milling tool wit same output shaft and connected with the No.2 gear box, with the axle line of the output shaft of the No.2 gear box having a inclination angle of 20 degree with the said working bench.
Description
Technical field
The present invention relates to a kind of processing method of tooth bar and implement a kind of equipment of this processing method.
Background technology
In the prior art, the processing method of tooth bar adopts the milling cutter of various criterion directly raw material to be carried out grinding, and for little modulus tooth bar, this processing is fairly simple convenient; But when the modulus of tooth bar increases, should not adopt milling cutter directly to be ground to the mode of tooth, so people utilize planer by the mode of digging processing the tooth bar blank to be planed usually, but because of whole flute profile being planed out, so it is very big that the planing amount will become, processing the required time simultaneously will become very long, and add man-hour in that the tooth bar after digging is milled, three on milling cutter of tradition is stressed, moment output to lathe requires than higher, simultaneously three stressed also be quite big to tool wear, the processing that the cutter after the wearing and tearing to a certain degree continues on for tooth bar then is easy to cause tooth bar not reach required processing request.
Summary of the invention
The object of the present invention is to provide a kind of processing method and equipment of tooth bar, its machining large-modulus tooth bar is convenient and time-saving, and can prolong the life-span of machining tool.
In order to reach above purpose, the scheme that the present invention adopts is:
The present invention relates to a kind of processing method of tooth bar, may further comprise the steps:
A, blank to be processed is placed on the drilling machine, the specification of the predetermined required teeth groove that processes, hole on blank according to default teeth groove, guarantee that the bottom land of the teeth groove after described hole and the moulding is tangent, and make the face at cell wall place of this hole and teeth groove both sides also tangent respectively;
B, cut along the cell wall of teeth groove, remove scrap after the cutting, obtain preliminary moulding tooth bar with saw;
C, preliminary moulding tooth bar is carried out Milling Process obtain required tooth bar.
In a kind of specific embodiment of the present invention, milling method in the c step is that a side channel wall of the intact tooth of every milling is laggard to preliminary moulding tooth bar, process the cell wall of the homonymy of next tooth then, after the same side cell wall milling of all teeth is finished, with 180 ° of preliminary moulding tooth bar flip horizontals, adopt same milling and feeding mode that the opposite side cell wall of each tooth is carried out Milling Process again.
Above-described Milling Process step utilizes milling cutter to carry out, and the angle of inclination of the face that mills of described milling cutter is 20 °, and this angle of inclination and cell wall are identical with angle between the bottom land.
Have among the embodiment at another kind of the present invention, after the step b, need heat-treat preliminary moulding tooth bar, and then enter step c.
For implementing above-mentioned processing method, the present invention also provides a kind of gear rack machining apparatus, it comprises machine base, can be arranged at workbench on the described machine base slidably along X-direction, can be arranged at column on the described machine base movably along Y direction, the crossbeam that is fixedly connected with described column, can be arranged at second milling attachment on the described crossbeam slidably along Z-direction, described second milling attachment comprises second motor, second gear-box that is in transmission connection mutually with the armature spindle of described second motor, with second milling cutter that the output shaft same axis of described second gear-box is connected, the axial line of the output shaft of described second gear-box and described workbench are one 20 ° inclination angle.
Described crossbeam is provided with delivering gear, the feed gearbox that described delivering gear comprises cutting feed, is in transmission connection mutually with the armature spindle of described cutting feed, described feed gearbox has second output shaft, described second output shaft is connected with second leading screw that drives second milling attachment, and described second leading screw extends along Z-direction.
Described feed gearbox comprises that also first output shaft, the free gear that can be meshed with the travelling gear on described first output shaft or second output shaft, the described free gear of control switch the feed switching crank of the engagement between the travelling gear with the travelling gear of first output shaft or second output shaft, described free gear is in transmission connection mutually with the armature spindle of cutting feed, described first output shaft is in transmission connection to be useful on and drives first leading screw that first milling attachment moves, and described first leading screw extends along Z-direction.
Removably be provided with tooth bar roughing device on the described machine base, described tooth bar roughing device comprises the connecting portion that is connected on the machine base, be fixedly set in lead on the described connecting portion, be mounted slidably in the hoisting cross beam on the described lead, be installed in the electric saw on the described hoisting cross beam.
Described electric saw comprises the roughing motor that is arranged at described hoisting cross beam one end, the band saw driving wheel that is in transmission connection mutually with the armature spindle of described roughing motor, the rotating shaft slide block that is arranged at described hoisting cross beam the other end, with described rotating shaft slide block rotate the band saw driven pulley that is connected, band saw on described band saw driving wheel and the described band saw driven pulley.
Be provided with tension mechanism between described rotating shaft slide block and the described hoisting cross beam, described tension mechanism comprise along the length direction of hoisting cross beam be opened in waist hole, location on the described hoisting cross beam, an end and described rotating shaft slide block rotate the threaded rod that connects, be arranged on the described hoisting cross beam with the described threaded rod screwed hole of threaded engagement mutually, the other end of described threaded rod is fixedly connected with and drives the handwheel that described threaded rod rotates, and described rotating shaft Slipper is inserted in the waist hole, described location.
The axial line of described lead and the angle of workbench are 70 °.
Described tooth bar roughing device also comprises the hydraulic cylinder of the described hoisting cross beam of driving along the lead lifting moving, and described hydraulic cylinder has the piston rod that parallels with lead, and the upper end of this piston rod and described hoisting cross beam are fixedly connected.
Also be mounted slidably first milling attachment on the described crossbeam, first motor that described first milling attachment comprises first gear-box, be in transmission connection mutually with the power shaft of described first gear-box, first milling cutter that is in transmission connection mutually with the output shaft of described first gear-box.
Described column is provided with the hydraulic cylinder that is used to drive the column lifting, and the piston rod of described hydraulic cylinder and described column are fixedly connected.
Be fixedly connected with the guide pillar that parallels with column on the described machine base, described column part can be connected with described guide pillar slidably along the length direction of guide pillar.
Be provided with between described machine base and the described workbench and drive the AC servo feed mechanism that workbench moves along the rack feed direction, described AC servo feed mechanism comprise AC servo motor, with the 3rd screw mandrel that the armature spindle of described AC servo motor is in transmission connection mutually, described the 3rd screw mandrel is threaded mutually with workbench.
Because the present invention has adopted above technical scheme, its advantage is: owing to adopt boring earlier, cut along the default flank of tooth with saw again, remove the metal derby that original needs grind away then, on milling machine, the flank of tooth is carried out grinding at last with second milling attachment, so can reduce stock removal, shorten the required time of tooth bar processing, improved working (machining) efficiency; And second milling attachment only need adopt the single face milling cutter to carry out milling to the flank of tooth, can improve the fineness of the flank of tooth, and can improve the service life of milling cutter.
Description of drawings
Accompanying drawing 1 is the front view (band partial cutaway) of gear rack machining apparatus;
Accompanying drawing 2 is the left view (the band partial cutaway is omitted the roughing device) of gear rack machining apparatus;
Accompanying drawing 3 is the front view (band partial cutaway) of tooth bar roughing device;
Accompanying drawing 4 is that the K of accompanying drawing 3 is to view;
Accompanying drawing 5 is that the P of accompanying drawing 3 is to view;
Accompanying drawing 6 is the D-D view of accompanying drawing 5;
Accompanying drawing 7 is the E-E view of accompanying drawing 5;
Accompanying drawing 8 is the F-F view of accompanying drawing 5;
Accompanying drawing 9 is the G-G view of accompanying drawing 5;
Accompanying drawing 10 is the cutaway view of AC servo feed mechanism;
Accompanying drawing 11 is the front view (band partial cutaway) of delivering gear;
Accompanying drawing 12 is the cutaway view of delivering gear along feed gearbox middle gear path of contact;
Accompanying drawing 13 is the B-B view of accompanying drawing 11;
Accompanying drawing 14 is the left view (band partial cutaway) of first milling attachment;
Accompanying drawing 15 is the cutaway view of first milling attachment along each gears engaged line of first gear-box;
Accompanying drawing 16 is the A-A view of accompanying drawing 14;
Accompanying drawing 17 is the main cutaway view of second milling attachment;
Accompanying drawing 18 is the right view (band partial cutaway) of second milling attachment;
Accompanying drawing 19 is the front view of boring back blank;
Accompanying drawing 20 is the vertical view of boring back blank;
Accompanying drawing 21 is the schematic diagram of saw processing back blank;
Accompanying drawing 22 removes the fast schematic diagram of waste material for blank;
Accompanying drawing 23 is the schematic diagram of the tooth bar after machining;
Wherein: 1, machine base; 2, tooth bar roughing device; 3, workbench; 4, column; 5, guide pillar; 6, crossbeam; 7, first milling attachment; 8, second milling attachment; 9, first leading screw; 10, second leading screw; 11, first milling cutter; 12, second milling cutter; 13, lead; 14, band saw driving wheel; 15, band saw; 16, band saw driven pulley; 17, first motor; 18, second motor; 19, connecting portion; 20, feed gear-box; 22, cutting feed; 23, crank is switched in feed; 24, delivering gear; 25, the 3rd leading screw; 26, AC servo motor; 27, first output shaft; 28, second output shaft; 30, electric saw; 34, free gear; 40, roughing motor; 41, hoisting cross beam; 42, piston rod; 46, waist hole, location; 49, rotating shaft slide block; 50, tension mechanism; 53, screwed hole; 70, first gear-box; 80, second gear-box; 90, AC servo feed mechanism; 91, blank; 92, hole; 93, scrap; 94; Tooth bar; 94 ', preliminary moulding tooth bar; 95, teeth groove; 96, bottom land; 97, cell wall.
The specific embodiment
Referring to each accompanying drawing, the invention provides a kind of processing method of tooth bar, may further comprise the steps:
A, blank to be processed 91 is placed on the drilling machine, the specification of the predetermined required teeth groove that processes 95, according to default teeth groove 95 92 (shown in the Figure 19-21) that on blank 91, hole, the bottom land 96 that guarantees the teeth groove 95 after described hole 92 and the moulding is tangent, and makes this hole 92 also tangent respectively with the face at cell wall 97 places of teeth groove 95 both sides;
B, cut along the cell wall 97 of teeth groove 95, remove scrap 93 after the cutting, obtain preliminary moulding tooth bar 94 ' (seeing shown in Figure 22) with saw;
C, preliminary moulding tooth bar 94 ' is carried out Milling Process obtain required tooth bar 94 (seeing shown in Figure 23).
Wherein, the milling method of c step is that a side channel wall 97 of the intact tooth of every milling is laggard to preliminary moulding tooth bar 94 ', process the cell wall 97 of the homonymy of next tooth then, after the same side cell wall 97 millings of all teeth are finished, with 180 ° of preliminary moulding tooth bar 94 ' flip horizontals, adopt same milling and feeding mode that the opposite side cell wall 97 of each tooth is carried out Milling Process again.
Described Milling Process step utilizes milling cutter to carry out, utilize the single face milling cutter to get final product, the cell wall 97 and the angle between the bottom land 96 of the teeth groove 95 of default specification are 20 °, and the angle of inclination of the face that mills of described milling cutter also is 20 °, and cell wall 97 equates with angle between the bottom land.
In a kind of preferred embodiment of the present invention, after step b, need heat-treat preliminary moulding tooth bar 94 ', after finishing, heat treatment enters step c again.
See shown in Fig. 1-18, a kind of gear rack machining apparatus, the crossbeam 6 that comprise machine base 1, can be arranged at workbench 3 on the described machine base 1 slidably, can be arranged at column 4 on the described machine base 1 movably, is fixedly connected with described column 4, can be arranged at second milling attachment 8 on the described crossbeam 6 slidably along Z-direction along Y direction along X-direction, X-axis and Y-axis are mutual vertical coordinate axle, and its bearing of trend is with reference to shown in Figure 1.Second gear-box 80 that described second milling attachment 8 comprises second motor 18, be in transmission connection mutually with the armature spindle of described second motor 18, with second milling cutter 12 that the output shaft same axis of described second gear-box 80 is connected, the axial line of the output shaft of described second gear-box 80 and described workbench 3 are one 20 ° inclination angle.
Described crossbeam 6 is provided with delivering gear 24, the feed gearbox 20 that described delivering gear 24 comprises cutting feed 22, is in transmission connection mutually with the armature spindle of described cutting feed 22, described feed gearbox 20 has second output shaft 28, described second output shaft 28 is connected with and drives second leading screw 10 that second milling attachment 8 moves, and described second leading screw 10 extends along Z-direction.Z axle and X-axis, Y-axis are perpendicular respectively, its bearing of trend and with the position relation of Y-axis with reference to shown in Figure 2.
Described feed gearbox 20 also comprises first output shaft 27, the free gear 34 that is meshed with travelling gear on described first output shaft 27 or second output shaft 28 optionally, control the feed switching crank 23 that described free gear 34 switches the engagement between the travelling gear with the travelling gear of first output shaft 27 or second output shaft 28, described free gear 34 is in transmission connection mutually with the armature spindle of cutting feed 22, described first output shaft 27 is in transmission connection to be useful on and drives first leading screw 9 that first milling attachment 7 moves, and described first leading screw 9 extends along Z-direction.See Fig. 2 and shown in Figure 12, crank 23 is switched in the operation feed, free gear 34 is meshed with travelling gear on second output shaft 28, thereby makes feed gearbox 20 drive 10 rotations of second leading screw, make second milling attachment 8 move, in order to the tooth bar of the big modulus of milling along Z-direction; During the little modulus tooth bar of milling, crank 23 is switched in the operation feed, free gear 34 is meshed with travelling gear on first output shaft 27, thereby makes feed gearbox 20 drive 9 rotations of first leading screw, the milling attachment 7 of winning is moved, in order to the preliminary moulding tooth bar 94 ' of milling along Z-direction.
See Fig. 3-4, shown in Figure 8, removably be provided with tooth bar roughing device 2 on the described machine base 1, described tooth bar roughing device 2 comprises the connecting portion 19 that is connected on the machine base 1, be fixedly set in lead 13 on the described connecting portion 19, be mounted slidably in the hoisting cross beam 41 on the described lead 13, be installed in the electric saw 30 on the described hoisting cross beam 41, and the angle of the axial line of described lead 13 and workbench 3 is 70 °.Described electric saw 30 comprises the roughing motor 40 that is arranged at described hoisting cross beam 41 1 ends, the band saw driving wheel 14 that is in transmission connection mutually with the armature spindle of described roughing motor 40, the rotating shaft slide block 49 that is arranged at described hoisting cross beam 41 the other end, with described rotating shaft slide block 49 rotate the band saw driven pulley 16 that is connected, band saw 15 on described band saw driving wheel 14 and the described band saw driven pulley 16.
Be provided with tension mechanism 50 between described rotating shaft slide block 49 and the described hoisting cross beam 41, see shown in Figure 9, described tension mechanism 50 comprises along the length direction of hoisting cross beam 41 and is opened in waist hole, location 46 on the described hoisting cross beam 41, the threaded rod 51 that one end and described rotating shaft slide block 49 rotate and be connected, be arranged on the described hoisting cross beam 41 with described threaded rod 51 screwed hole 53 of threaded engagement mutually, the other end of described threaded rod 51 is fixedly connected with and drives the handwheel 52 that described threaded rod 51 rotates, and described rotating shaft slide block 49 parts are inserted in the waist hole, described location 46.Regulate precession and the back-out of threaded rod 51 in screwed hole 53 by rotating handwheel 52, can control the position of rotating shaft slide block 49 in waist hole, location 46, thereby regulate the position of band saw driven pulley 16, make band saw 15 tensioners on band saw driving wheel 14 and band saw driven pulley 16.
Described tooth bar roughing device 2 also comprises the hydraulic cylinder of the described hoisting cross beam 41 of driving along lead 13 lifting moving, described hydraulic cylinder has the piston rod 42 that parallels with lead 13, and the upper end of this piston rod 42 and described hoisting cross beam 41 are fixedly connected.Control hoisting cross beam 41 by hydraulic cylinder and move, can improve the stationarity and the precision that add man-hour along lead 13.
After the hole on the blank 91 92 gets out, drive band saw driving wheel 14 by roughing motor 40, making band saw 15 drive band saw driven pulley 16 rotates, simultaneously band saw 15 self is also in band saw driving wheel 14 and the 16 cocycle campaigns of band saw driven pulley, thereby the blank 91 after the boring is cut, because the axial line of lead 13 and the angle of workbench 3 are 70 °, so can guarantee that the angle between the bottom land 96 of the cell wall 97 that cuts out and teeth groove 95 is 20 °.
Also be mounted slidably first milling attachment 7 on the described crossbeam 6, first motor 17 that described first milling attachment 7 comprises first gear-box 70, be in transmission connection mutually with the power shaft of described first gear-box 70, first milling cutter 11 that is in transmission connection mutually with the output shaft of described first gear-box 70.
Described column 4 is provided with the hydraulic cylinder that is used to drive column 4 liftings, and the piston rod of described hydraulic cylinder and described column 4 are fixedly connected.Hydraulic cylinder is a usual means, does not adopt accompanying drawing to give unnecessary details at this.Be fixedly connected with the guide pillar 5 that parallels with column 4 on the described machine base 1, described column 4 parts can be connected with described guide pillar 5 slidably along the length direction of guide pillar 5.
Piston rod by hydraulic cylinder promotes column 4 along guide pillar 5 lifting moving, moves thereby drive crossbeam 6, can improve the stationarity and the precision that add man-hour.
Be provided with between described machine base 1 and the described workbench 3 and drive the AC servo feed mechanism 90 that workbench 3 moves along the rack feed direction, described AC servo feed mechanism 90 comprise AC servo motor 26, with the 3rd screw mandrel 25 that the armature spindle of described AC servo motor 26 is in transmission connection mutually, described the 3rd screw mandrel 25 is threaded mutually with workbench 3.
During work: modulus, tooth depth, the adjacent teeth spacing of at first determining tooth bar; If modulus ratio is less, add man-hour relatively easily, directly be fixed on the described workbench 3, adopt first milling attachment 7 and select for use corresponding first milling cutter 11 to treat the blank that is processed into tooth bar and directly process: be fixed with by 90 controls of digital control system control AC servo motor system one-tenth tooth bar to be processed blank workbench 3 feeding, rotation that delivering gear 24 drives first leading screw 9 and and then drive first milling attachment 7 moving on crossbeam 6.Thereby finish processing to little modulus tooth bar.
When the modulus ratio of required racks processed is big, the strip blank of the required tooth bar of one-tenth to be processed is placed on the drilling machine, and hole along facewidth direction in the position at the bottom of the tooth of the corresponding required tooth bar of blank, and at the bottom of the tooth of described hole and required each corresponding teeth groove of tooth bar, two flank of tooth are tangent; Band saw 15 on the tooth bar roughing device 2 carries out cutting processing along the flank of tooth then, and control whole hoisting cross beam 41 liftings and following cutter by hydraulic cylinder, add man-hour earlier along the flank of tooth cutting of a side of initial tooth, after this flank of tooth cutting is finished, be fixed with workbench 3 feedings of tooth bar to be processed by numerical control device control, process the corresponding flanks of next tooth then, after the flank of tooth cutting of the same side is finished, with 180 ° of tooth bar flip horizontals, adopt same feeding mode that the flank of tooth of the opposite side of each tooth is cut again.Remove monoblock after cutting is finished and cut the metal derby that the flank of tooth form, so far the first one-step forming of tooth bar by the last cambered surface and two in hole.Carry out the tooth bar behind the first one-step forming modified, quench, annealing, after the Technologies for Heating Processing such as tempering, be fixed to once more on the described workbench 3, regulate the height of crossbeam 6 by hydraulic cylinder, again with second milling attachment 8 and select for use 12 pairs of flank of tooth of corresponding second milling cutter to carry out fine finishining, by delivering gear 24 drive second leading screw 10 rotation and and then drive second milling attachment 8 moving along second leading screw 10, because described second milling attachment 8 has one 20 ° inclination angle, make that described second milling cutter 12 is just identical with the inclination angle of the flank of tooth, described second milling cutter 12 carries out grinding to the single flank of tooth in the process of described second milling attachment 8 feeds, after processing a flank of tooth, 3 feedings of numerical control device control workbench, same again mode is processed the corresponding flanks of next tooth, after the flank of tooth for the treatment of homonymy machines, be fixed on the described workbench 3 behind 180 ° of the tooth bar flip horizontals, each flank of tooth to opposite side carries out grinding in the same way, thereby finishes the processing of whole big modulus tooth bar.
Owing to adopt boring earlier, cut along the required flank of tooth with saw again, remove the scrap 93 that original needs grind away then, after more preliminary moulding tooth bar 94 ' being heat-treated, on described milling machine, carry out milling at last with 8 pairs of flank of tooth of second milling attachment, so reduce tooth bar processing required time, improved efficient, the example that is processed as with the tooth bar of 20 moduluses, the technology of prior art is dug tooth of processing approximately needs about 1.5～2 hours, but after adopting processing method of the present invention and equipment, processing a same tooth only needed get final product in about 15 minutes, had improved efficient greatly; Because second milling attachment 8 adopts the single face milling cutter that the flank of tooth is carried out milling, has improved the fineness of the flank of tooth, and has improved the life-span of milling cutter.
Claims (16)
1, a kind of processing method of tooth bar is characterized in that: may further comprise the steps:
A, blank to be processed (91) is placed on the drilling machine, the specification of the predetermined required teeth groove that processes (95), go up boring (92) according to default teeth groove (95) at blank (91), the bottom land (96) that guarantees the teeth groove (95) after described hole (92) and the moulding is tangent, and makes this hole (92) also tangent respectively with the face at cell wall (97) place of teeth groove (95) both sides;
B, cut along the cell wall (97) of teeth groove (95), remove scrap (93) after the cutting, obtain preliminary moulding tooth bar (94 ') with saw;
C, preliminary moulding tooth bar (94 ') is carried out Milling Process obtain required tooth bar (94).
2, the processing method of tooth bar according to claim 1, it is characterized in that: the milling method of c step is the laggard preliminary moulding tooth bar (94 ') of giving of a side channel wall (97) of the intact tooth of every milling, process the cell wall (97) of the homonymy of next tooth then, after the same side cell wall (97) milling of all teeth is finished, with 180 ° of preliminary moulding tooth bar (94 ') flip horizontals, adopt same milling and feeding mode that the opposite side cell wall (97) of each tooth is carried out Milling Process again.
3, tooth bar processing method according to claim 1, it is characterized in that: described Milling Process step utilizes milling cutter to carry out, the angle of inclination of (96) is 20 ° at the bottom of the face that the mills opposed slot of described milling cutter, and this angle and described cell wall (97) equate with angle between the bottom land (96).
4, tooth bar processing method according to claim 1 is characterized in that: after step b, need heat-treat preliminary moulding tooth bar (94 '), and then enter step c.
5, a kind of gear rack machining apparatus, comprise machine base (1), can be arranged at workbench (3) on the described machine base (1) slidably along X-direction, can be arranged at column (4) on the described machine base (1) movably along Y direction, the crossbeam (6) that is fixedly connected with described column (4), can be arranged at second milling attachment (8) on the described crossbeam (6) slidably along Z-direction, described second milling attachment (8) comprises second motor (18), second gear-box (80) that is in transmission connection mutually with the armature spindle of described second motor (18), second milling cutter (12) with the output shaft same axis of described second gear-box (80) is connected is characterized in that: the axial line of the output shaft of described second gear-box (80) and described workbench (3) are one 20 ° inclination angle.
6, gear rack machining apparatus according to claim 5, it is characterized in that: described crossbeam (6) is provided with delivering gear (24), the feed gearbox (20) that described delivering gear (24) comprises cutting feed (22), is in transmission connection mutually with the armature spindle of described cutting feed (22), described feed gearbox (20) has second output shaft (28), described second output shaft (28) is connected with second leading screw (10) that drives second milling attachment (8), and described second leading screw (10) extends along Z-direction.
7, gear rack machining apparatus according to claim 6, it is characterized in that: described feed gearbox (20) also comprises first output shaft (27), the free gear (34) that can be meshed with the travelling gear on described first output shaft (27) or second output shaft (28), control the feed switching crank (23) that described free gear (34) switches the engagement between the travelling gear with the travelling gear of first output shaft (27) or second output shaft (28), described free gear (34) is in transmission connection mutually with the armature spindle of cutting feed (22), described first output shaft (27) is in transmission connection to be useful on and drives first leading screw (9) that first milling attachment (7) moves, and described first leading screw (9) extends along Z-direction.
8, gear rack machining apparatus according to claim 5, it is characterized in that: removably be provided with tooth bar roughing device (2) on the described machine base (1), described tooth bar roughing device (2) comprises the connecting portion (19) that is connected on the machine base (1), be fixedly set in lead (13) on the described connecting portion (19), be mounted slidably in the hoisting cross beam (41) on the described lead (13), be installed in the electric saw (30) on the described hoisting cross beam (41).
9, gear rack machining apparatus according to claim 8 is characterized in that: described electric saw (30) comprises the roughing motor (40) that is arranged at described hoisting cross beam (41) one ends, the band saw driving wheel (14) that is in transmission connection mutually with the armature spindle of described roughing motor (40), the rotating shaft slide block (49) that is arranged at described hoisting cross beam (41) the other end, with described rotating shaft slide block (49) rotate the band saw driven pulley (16) that is connected, band saw (15) on described band saw driving wheel (14) and the described band saw driven pulley (16).
10, gear rack machining apparatus according to claim 9, it is characterized in that: be provided with tension mechanism (50) between described rotating shaft slide block (49) and the described hoisting cross beam (41), described tension mechanism (50) comprises along the length direction of hoisting cross beam (41) and is opened in waist hole, location (46) on the described hoisting cross beam (41), the threaded rod (51) that one end and described rotating shaft slide block (49) rotate and be connected, be arranged on the described hoisting cross beam (41) with described threaded rod (51) screwed hole of threaded engagement (53) mutually, the other end of described threaded rod (51) is fixedly connected with and drives the handwheel (52) that described threaded rod (51) rotates, and described rotating shaft slide block (49) part is inserted in the waist hole, described location (46).
11, gear rack machining apparatus according to claim 8 is characterized in that: the angle of the axial line of described lead (13) and workbench (3) is 70 °.
12, gear rack machining apparatus according to claim 8, it is characterized in that: described tooth bar roughing device (2) also comprises first hydraulic cylinder of the described hoisting cross beam of driving (41) along lead (13) lifting moving, described first hydraulic cylinder has the piston rod (42) that parallels with lead (13), and upper end of this piston rod (42) and described hoisting cross beam (41) are fixedly connected.
13, gear rack machining apparatus according to claim 5, it is characterized in that: also be mounted slidably first milling attachment (7) on the described crossbeam (6), first motor (17) that described first milling attachment (7) comprises first gear-box (70), be in transmission connection mutually with the power shaft of described first gear-box (70), first milling cutter (11) that is in transmission connection mutually with the output shaft of described first gear-box (70).
14, gear rack machining apparatus according to claim 5 is characterized in that: described column (4) is provided with second hydraulic cylinder that is used to drive column (4) lifting, and the piston rod of described second hydraulic cylinder and described column (4) are fixedly connected.
15, gear rack machining apparatus according to claim 14, it is characterized in that: be fixedly connected with the guide pillar (5) that parallels with column (4) on the described machine base (1), described column (4) part can be connected with described guide pillar (5) slidably along the length direction of guide pillar (5).
16, gear rack machining apparatus according to claim 5, it is characterized in that: be provided with between described machine base (1) and the described workbench (3) and drive the AC servo feed mechanism (90) that workbench (3) moves along the rack feed direction, described AC servo feed mechanism (90) comprise AC servo motor (26), with the 3rd screw mandrel (25) that the armature spindle of described AC servo motor (26) is in transmission connection mutually, described the 3rd screw mandrel (25) is threaded mutually with workbench (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100196996A CN100484695C (en) | 2007-01-31 | 2007-01-31 | Processing method and apparatus for rack |
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|---|---|---|---|
| CNB2007100196996A CN100484695C (en) | 2007-01-31 | 2007-01-31 | Processing method and apparatus for rack |
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| CN101011787A CN101011787A (en) | 2007-08-08 |
| CN100484695C true CN100484695C (en) | 2009-05-06 |
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| CNB2007100196996A Expired - Fee Related CN100484695C (en) | 2007-01-31 | 2007-01-31 | Processing method and apparatus for rack |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5285526B2 (en) * | 2009-07-27 | 2013-09-11 | 三菱重工業株式会社 | Internal gear machining method and tool dressing method used therefor |
| CN101850446B (en) * | 2010-05-31 | 2012-10-10 | 二重集团（德阳）重型装备股份有限公司 | Finish machining method for tooth form of large modulus rack |
| CN102489823B (en) * | 2011-11-28 | 2014-05-21 | 武汉船用机械有限责任公司 | Flame cutting method of ultra-long single-sided rack |
| CN103331492B (en) * | 2013-05-31 | 2015-04-08 | 燕山大学 | Hobbing processing method and hobbing processing device for knuckle-tooth steel belt |
| CN104741701A (en) * | 2014-01-01 | 2015-07-01 | 盐城市宝利来精密机械制造有限公司 | Combined machine tool special for automatically controlling roll cutting and milling of rack |
| CN103846720A (en) * | 2014-03-31 | 2014-06-11 | 浙江博雷重型机床制造有限公司 | Rack steel blank conveyor |
| CN103920939B (en) * | 2014-04-29 | 2017-02-08 | 浙江博雷重型机床制造有限公司 | Rapid replacing numerical control milling machine for milling rack tooth shape |
| CN103921128B (en) * | 2014-04-29 | 2016-08-17 | 浙江博雷重型机床制造有限公司 | A kind of tooth bar Xi Zuan center with material conveying platform |
| CN105033593A (en) * | 2014-11-27 | 2015-11-11 | 苏州晓谕精密机械股份有限公司 | Tooth bar high efficiency processing technology |
| CN104985400B (en) * | 2015-07-03 | 2017-05-31 | 中航动力株洲航空零部件制造有限公司 | Machining spiral groove method |
| US10987745B2 (en) * | 2019-01-25 | 2021-04-27 | Snap-On Incorporated | Method of manufacturing socket punches |
| CN109676398A (en) * | 2019-03-07 | 2019-04-26 | 邵阳县振华机械锻造配件有限责任公司 | A kind of rack gear production system |
| CN110877129B (en) * | 2019-11-28 | 2020-12-11 | 海汇集团有限公司 | Rack length and angle self-defined cutting machine |
| CN112207568B (en) * | 2020-09-07 | 2022-05-27 | 舒城久联精密机械有限公司 | Drilling and reaming integrated device for prestressed anchorage tool machining |
| CN112192242A (en) * | 2020-10-19 | 2021-01-08 | 湖南昱升科技发展有限责任公司 | Automatic drilling equipment for elevator rack |
-
2007
- 2007-01-31 CN CNB2007100196996A patent/CN100484695C/en not_active Expired - Fee Related
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