CN108296575A - A kind of big screw pitch male thread processing device - Google Patents
A kind of big screw pitch male thread processing device Download PDFInfo
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- CN108296575A CN108296575A CN201810265914.9A CN201810265914A CN108296575A CN 108296575 A CN108296575 A CN 108296575A CN 201810265914 A CN201810265914 A CN 201810265914A CN 108296575 A CN108296575 A CN 108296575A
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- 238000005520 cutting process Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000007704 transition Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 238000003801 milling Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/32—Thread cutting; Automatic machines specially designed therefor by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
- B23G1/48—Equipment or accessories specially designed for machines or devices for thread cutting for guiding the threading tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G11/00—Feeding or discharging mechanisms combined with, or arranged in, or specially adapted for use in connection with, thread-cutting machines
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Abstract
The invention discloses a kind of big screw pitch male thread processing devices, and workpiece is static at work for the device, and cutter rotation avoids the long rotoflector of workpiece, are suitable for carrying out big screw pitch external screw thread to long bolt processing, not limited by workpieces processing size；And it completes, to the externally threaded processing of the big screw pitch of workpiece, to improve processing efficiency, surface quality and cooperation precision using the rotation of mandrel and revolution are disposable；And it is applicable in the processing to different screw threads, have a wide range of application, the radial distance of rotation main shaft can be adjusted by adjustment portion to complete the processing to different-diameter workpiece and withdrawing, and tilt adjustment frame is used for adjusting helix angle, to reach the processing request of various model screw threads.
Description
Technical field
The present invention relates to big screw pitch external screw thread manufacture field more particularly to a kind of big screw pitch male thread processing devices.
Background technology
External screw thread of the screw pitch more than 4mm is defined as big screw pitch external screw thread, big screw pitch external screw thread tooth form groove width and depth, screw pitch and
Axial length is big, belongs to odd-pitch screw, and allowance is big, and screw pitch and profile accuracy and thread surface quality requirement are high.
The existing externally threaded processing method of big screw pitch mainly has milling, grinding and turnery processing.
When the big screw pitch external screw thread of Milling Process, interrupted cut can aggravate the vibration in screw rod processing, and be used the longevity by cutter
Life limitation, the screw thread of improper processing axial length length, is suitable only for processing short thread.
When method for grinding processes big screw pitch external screw thread, high accuracy of thread and surface quality can be obtained, but its blank needs
To reach certain precision level using other processes first, and this method is in larger outer of processing diameter and axial dimension
It is more demanding to technological equipment when thread part.
The processing of steep-pitch thread either uses machine tool or numerically-controlled machine tool, turnery processing screw thread generally to use
Forming cutter processing and forming.Precision, tooth form and the tooth-face roughness of screw thread all with thread forming lathe tool select it is good, badly have direct pass
System.According to the size of screw pitch and required precision, using one, two or three cutter, thick, smart two steps is divided to carry out.When rough turn, knife
Point is narrower；When smart car, point of a knife is wide must be equal with thread groove width, takes straight method, microfeed, low speed machining in lathe, or use
Tiltedly into formula feed mode, single-side edge cutting workpiece.When being processed due to forming cutter, cutter and work piece interface product are big, easy to produce
Shake knife, and cutter easy damaged and abrasion, needs frequent sharpening tool changing, thus, it is ensured that the tooth form precision and the flank of tooth of screw thread are thick
Rugosity requirement is difficult.Thread turning processing method is mainly used for the screw thread process of middle-size and small-size screw pitch, is unable to reach big screw pitch
Externally threaded big surplus removes and high-precision processing request, thread surface processing present in big screw pitch external threading processing
Original reason error and connect tool marks, tool wear is too fast caused by chip-load is excessive, and the screw thread that cutting point error accumulation generates is random
Button and layered cutting number excessively lead to problems such as processing efficiency reduce.
Invention content
Technical problem to be solved by the invention is to provide a kind of workpiece is static, cutter rotation avoids the long rotation of workpiece
Bending is completed using the rotation and revolution of mandrel are disposable to the externally threaded processing of the big screw pitch of workpiece, can improve processing efficiency,
Surface quality and a kind of cooperation big screw pitch male thread processing device of precision.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of big screw pitch male thread processing device, including workbench, workpiece fixed mechanism, cutting mechanism, feed mechanism with
And rotating mechanism；Workpiece fixed mechanism, be set to table spindle to one end；Workbench which is provided with for setting up cutting mechanism
Supporting rack, support frame as described above can be along workbench axially reciprocating by feed mechanism；It is characterized in that：Supporting rack is in
"u"-shaped has and the bottom plate of the sliding cooperation in workbench upper surface and the vertical supporting plate for being set to bottom plate both ends, the branch
The circular vias coaxial with workpiece fixed mechanism is offered on frame plate；Cutting mechanism, including threading tool, cutterhead and rotary core
Axis, the threading tool include circumferentially being distributed in the multiple of cutterhead front end, and the front end of the rotary core shaft and the rear end of cutterhead are same
Axis is fixed, and the cutterhead and rotary core shaft are in the tube-in-tube structure that workpieces processing can be made to insert into the inner portion；Rotating mechanism, including
The revolution component that the rotation component and driving and cutting mechanism of driving and cutting mechanism itself rotation are rotated along workpieces processing；Revolution
Component, including swivel mount, fixed frame, adjustment portion and driving portion；Swivel mount, is in the cavity body structure of hollow out, and bottom has water
The support plate of flat setting, the both ends of swivel mount all have the tube-in-tube structure stretched into supporting rack circular vias, the tube-in-tube structure with
Being equipped between circular vias enables the first swivel bearing that swivel mount rotates on supporting rack, the front end of the cutting mechanism to stretch
Go out outside swivel mount, rear end is located in swivel mount, and the internal diameter of the swivel mount upper bush structure is more than the outer diameter of rotary core shaft, described
The rear end of swivel mount is stretched out outside the supporting plate of supporting rack；Fixed frame is set in swivel mount, rounded tube-in-tube structure, and is arranged
It is revolved in being equipped with enable rotary core shaft to be rotated in fixed frame second in rotary core shaft, between the fixed frame and rotary core shaft
Shaft is held, and the rotation component is fixed on fixed frame；Swivel mount is connect, lower end and swivel mount by adjustment portion with fixed frame
Width direction is slided, and the upper end and fixed frame are hinged, and the fixed frame along hinged place tilted upward and can lock；Driving portion,
It stretches out the rear end of supporting rack with swivel mount and connect, for driving swivel mount to rotate.
Further technical solution is：Adjustment portion, including radial adjusting rails and tilt adjusting seat；Radial adjusting rails, Gu
It is arranged due to swivel mount width direction；Tilt adjusting seat, can the sliding of radially adjusted rail, bottom is equipped with and radial adjusting rails
The sliding slot to match, upper part have two pieces along table spindle to the connecting plate of setting, form U-clamp between two pieces of connecting plates
The bottom of slot, the fixed frame is set in U-clamp slot, and the both ends of the connecting plate axial direction are respectively equipped with the circle hinged with fixed frame
Hole and the adjustment hole for having passed through bolt and nut component locking with fixed frame, the adjustment hole open up along the vertical direction.
Further technical solution is：The radial adjusting rails structure in the shape of an " I ", including twice disposed in parallel,
And the upper surface of radial adjusting rails has the protrusion to being positioned before and after tilt adjusting seat.
Further technical solution is：The rotation component includes set on the sprocket wheel of rotary core shaft rear end and set on solid
Determine the first driving motor on frame, the output end of first driving motor is connect with sprocket wheel by chain drive.
Further technical solution is：Further include the bearing to take the shape of the letter U, the bearing is along table spindle to setting in the inner
Portion；Feed mechanism, including screw shaft, the second driving with the feeding sliding block of screw shaft cooperation and for driving screw shaft to rotate
Motor, both ends and the bearing of the screw shaft are rotatably assorted, and the screw pitch of screw shaft is identical as the screw pitch of workpieces processing, described
Feeding sliding block is fixed on the lower face of supporting rack bottom plate.
Further technical solution is：Driving portion, including the first operation handle, first gear and along workbench
Axial arranged splined shaft and rotary shaft；First gear is sheathed on the rear end that swivel mount stretches out supporting rack；Splined shaft, with rotation
Axis is coaxially disposed, and one end and the bearing of the splined shaft are rotatably assorted, and the other end is connect with rotary shaft by clutch, the flower
Key axis is equipped with spline gear, and the spline gear is meshed with first gear by transition gear；Rotary shaft, the other end with
Bearing is rotatably assorted, and stretches out outside bearing, and the outside that the rotary shaft is located at bearing is equipped with driving wheel, the driving wheel and third
The output end of driving motor is connected by belt transmission；First operation handle, is connected with clutch, for controlling splined shaft and rotation
Shaft connects or separates.
Further technical solution is：The third driving motor and the second driving motor are same driving motor；Rotation
Shaft, the inside for being located at bearing are equipped with second gear；Further include and splined shaft and screw shaft transmission shaft disposed in parallel；It passes
Moving axis, both ends are rotatably assorted with bearing, and one end of the transmission shaft is equipped with the third gear being meshed with second gear, another
End is equipped with the 4th gear；Screw shaft which is provided with the 5th gear being meshed with the 4th gear.
Further technical solution is：The bearing further includes the support plate for being located therein portion vertically, the screw shaft with
The forward and backward setting of splined shaft, the opposite one end of the two are rotatably assorted with support plate.
Further technical solution is：5th gear include interval setting and different the 5th gear A of the number of teeth and
5th gear B, one end that the transmission shaft is connect with the 4th gear are in spline structure, and the 4th gear includes being connected to set
4th gear A and the 4th gear B, the 4th gear A and the 4th gear B are able to nibble with the 5th gear A and the 5th gear B
It closes, the 4th gear, which is equipped with, drives its second operation handle along spline structure axial movement.
Further technical solution is：The rear of the workbench is equipped with fixed support, and the fixed support is equipped with
With the centration axis of rotary core shaft coaxial arrangement, the other end of the centration axis stretches into swivel mount.
It is using advantageous effect caused by above-mentioned technical proposal：
(1) workpiece is static, and cutter rotation avoids the long rotoflector of workpiece, is suitable for carrying out big screw pitch to long bolt
External screw thread is processed, and is not limited by workpieces processing size；
(2) rotation of mandrel and revolution is utilized disposably to complete, to the externally threaded processing of the big screw pitch of workpiece, to improve processing
Efficiency, surface quality and cooperation precision；
(3) be applicable in the processing to different screw threads, have a wide range of application, by adjustment portion can adjust rotation main shaft it is radial away from
From the processing to different-diameter workpiece and withdrawing is completed, tilt adjustment frame is used for adjusting helix angle, to reach various models
The processing request of screw thread.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of running part of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiment is a part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Only embodiment in bright, the every other implementation that those skilled in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As depicted in figs. 1 and 2, a kind of big screw pitch male thread processing device, including workbench 1, workpiece fixed mechanism 2, cut
Mechanism, feed mechanism and rotating mechanism are cut, is suitable for processing the steep-pitch thread of the stocks such as similar bridge Stay Cable Anchors.
Workpiece fixed mechanism 2 is set to the axial one end of workbench 1, the fixed mechanism form on numerically-controlled machine tool can be used, profit
With PLC automation controls, hydraulic self-centering clamping.
Workbench 1 plays the role of each mechanism of support.Workbench 1 is equipped with the supporting rack for setting up cutting mechanism
11, support frame as described above 11 can be along 1 axially reciprocating of workbench, i.e., toward and away from workpieces processing 100 by feed mechanism
Milling feed and withdrawing are completed in movement.
Supporting rack 11, " U "-shaped structure have the bottom plate with the sliding cooperation in 1 upper surface of workbench, specifically, working
The both sides of 1 upper end of platform are axially arranged with guided way along it, and the bottom plate of support frame as described above 11 is in " n " shape structure, has downward flange,
The flange is equipped with and the matched guide pad of guided way so that supporting rack 11 can be axially moved along workbench 1.Supporting rack
11 also have the vertical supporting plate for being set to bottom plate both ends, and the circle coaxial with workpiece fixed mechanism 2 is offered on the supporting plate
Via.
Cutting mechanism, including threading tool 31, cutterhead 32 and rotary core shaft 33, the threading tool 31 include circumferential equal
The multiple of 32 front end of cutterhead are distributed in, the cutterhead 32 is in the tube-in-tube structure that workpieces processing 100 can be made to insert into the inner portion, the rotation
The front end of core axis 33 and the rear end of cutterhead 32 are coaxially fixed, and the cutterhead 32 and rotary core shaft 33 are in that can make workpieces processing
100 insert into the inner the tube-in-tube structure in portion so that cutterhead 32 can be completed with workpiece socket to workpieces processing 100 during feeding
Axial screw thread process, when the axial length of workpieces processing 100 is longer, workpieces processing 100 can also stretch into rotary core shaft 33
It is interior, so as to realize the processing to machining long workpieces.
Rotating mechanism, including the rotation component of driving and cutting mechanism itself rotation and driving and cutting mechanism are along processing work
The revolution component that part 100 rotates；Reach center of the cutter around workpiece according to adjustment by the revolution (low speed) of rotary core shaft 33
The processing to screw thread different parameters is completed in rotation.The task of Tool in Milling is completed in 33 rotation of rotary core shaft (high speed), to reach
Realize workpieces processing 100 do not have to rotation can disposable milling thread purpose.
The component that revolves round the sun includes swivel mount 41, fixed frame 42, adjustment portion and driving portion.
Swivel mount 41 is in the cavity body structure of hollow out, and bottom has horizontally disposed support plate, and the both ends of swivel mount 41 have
There is the tube-in-tube structure stretched into 11 circular vias of supporting rack, being equipped between the tube-in-tube structure and circular vias enables swivel mount 41
The front end of enough the first swivel bearings 411 rotated on supporting rack 11, the cutting mechanism is stretched out outside swivel mount 41, and rear end is located at
In swivel mount 41, the internal diameter of 41 upper bush structure of the swivel mount is more than the outer diameter of rotary core shaft 33, after the swivel mount 41
End is stretched out outside the supporting plate of supporting rack 11.
Fixed frame 42 is set in swivel mount 41, rounded tube-in-tube structure, and is sheathed in rotary core shaft 33, described solid
Determine to be equipped with the second swivel bearing 421 for enabling rotary core shaft 33 to rotate in fixed frame 42 between frame 42 and rotary core shaft 33,
The rotation component is fixed on fixed frame 42.
Swivel mount 41 is connect by adjustment portion with fixed frame 42, and lower end and the support plate of swivel mount 41 are sliding, can be along work
1 width direction of platform is slided, and the upper end and fixed frame 42 are hinged, and the fixed frame 42 along hinged place tilted upward and can lock.
Driving portion, the rear end that supporting rack 11 is stretched out with swivel mount 41 are connect, for driving swivel mount 41 to rotate.
Rotating mechanism at work, first has to the radial eccentric distance and inclination angle that cutting mechanism is adjusted by adjustment portion
Degree.Then 33 high speed rotation of rotation Component driver rotary core shaft, to ensure the smoothness of workpiece surface, the driving portion for the component that revolves round the sun
Swivel mount 41 is driven to be rotated in the circular vias of supporting rack 11, since swivel mount 41 is connected with fixed frame 42 by adjustment portion,
Then fixed frame 42 can also be rotated with swivel mount 41, and since fixed frame 42 and 41 decentraction of swivel mount are arranged, fixed frame 42 is done partially
The heart rotates, then rotary core shaft 33 can also be rotated together with fixed frame 42, to realize being eccentrically rotated for rotary core shaft 33.And
Rotation component is fixed with fixed frame 42, so the revolution and rotation of rotating mechanism will not influence each other.
The device big screw pitch is carried out to workpieces processing 100 external screw thread processing when process be：
Workpiece to be processed is loaded onto workpiece fixed mechanism 2 by the first step；
Second step adjusts cutting mechanism in radial direction according to the diameter and thread parameter of workpiece to be processed by adjustment portion
Eccentric distance adjusts the cutting output (with center lathe middle carriage) of feed afterwards by dial and locks in time, in order to avoid rotary cutting
When saunter knife, to achieve the purpose that the precision processing request of screw thread；
Third walks, and the angle of inclination of cutting mechanism is adjusted by adjustment portion, to meet the lead angle of workpiece to be processed
Parameter request, the more big then lead angle of inclined angle are bigger；
4th step, while starting feed mechanism, rotation component and revolution component so that cutting mechanism is to workpieces processing
While 100 feeding, rotation component drives 33 high speed rotation of rotary core shaft, revolution component to drive rotary core shaft 33 along workpieces processing
100 revolve round the sun；
5th step, when screw thread process in place after, feed mechanism, rotation component and revolution component are closed, and pass through adjusting
Portion adjusts cutting mechanism in radial position, cutterhead is radially exited workpiece, and lock, reserves withdrawing space, make cutting as possible
Mechanism and workpieces processing 100 are coaxial, and blade when withdrawing is avoided to scratch workpiece；
6th step starts feed mechanism high speed withdrawing, that is, completes to the externally threaded processing of the big screw pitch of workpiece.
The big screw pitch male thread processing device, static using workpiece, it is long to avoid workpiece for the processing method of cutter rotation
Rotoflector is suitable for carrying out big screw pitch external screw thread to long bolt processing, and workpiece can extend into cutting mechanism so that the dress
It sets and is not limited by workpieces processing size.And it is completed to the big screw pitch of workpiece using the rotation of rotary core shaft 33 and revolution are disposable
Externally threaded processing improves processing efficiency, surface quality and cooperation precision.And the device, which is applicable in, adds different screw threads
Work has a wide range of application, and can adjust the radial distance of rotation main shaft by adjustment portion to complete the processing to different-diameter workpiece
And withdrawing, tilt adjustment frame is used for adjusting helix angle, to reach the processing request of various model screw threads.
Adjustment portion realizes the device to the processing to different-diameter to the radial position of cutting mechanism and the adjustment at inclination angle
Workpiece, and different thread parameter processing.Specifically, adjustment portion, including radial adjusting rails 43 and tilt adjusting seat 44.
Radial adjusting rails 43 are fixed on the support plate of swivel mount 41, and are arranged along 1 width direction of workbench；Tilt adjustment
Seat 44, can radially adjusted rail 43 slide, bottom is equipped with the sliding slot that matches with radial adjusting rails 43, so as to adjust cutting
The radial position of mechanism.The top of tilt adjusting seat 44 has two pieces of connecting plates being axially arranged along workbench 1, two pieces of connecting plates
Between form U-clamp slot, the bottom of the fixed frame 42 is set in U-clamp slot, and the both ends of the connecting plate axial direction are respectively equipped with
With fixed frame 42 hinged circular hole and with fixed frame 42 passed through bolt and nut component locking adjustment hole, the adjustment hole
It opens up along the vertical direction, bolt and nut component is unclamped, you can adjust the angle of inclination of cutting mechanism.Also, radial adjusting rails
43 structures in the shape of an " I ", including twice disposed in parallel make tilt adjusting seat 44 be connect with swivel mount 41 more secured, and
I-shaped structure more adapts to the rotary work of 360 ° of adjustment portion, and the upper surface of radial adjusting rails 43 has to tilt adjustment
The front and back protrusion positioned of seat 44 can process multiple screw holes in the upper surface of radial adjusting rails 43, and then installation bolt is positioned,
To prevent tilt adjusting seat 44 from moving radially influence machining accuracy.
The structure type of wherein rotation component is relatively simple common, and chain drive transmission may be used.Specific rotation group
Part includes the sprocket wheel 51 set on 33 rear end of rotary core shaft and the first driving motor 52 on fixed frame 42, and described first drives
The output end of dynamic motor 52 is connect with sprocket wheel 51 by chain drive.First driving motor 52, which starts, to be rotated and is transmitted by chain
To rotary core shaft 33, driving rotary core shaft 33 rotates, by controlling the rotating speed of the first driving motor 52, it can be achieved that rotary core shaft 33
Announcement high speed rotation, ensure the smoothness of workpiece surface.
And for the structure type of feed mechanism and driving portion, as shown in Fig. 2, being all made of gear drive.The device also wraps
The bearing 6 to take the shape of the letter U is included, the bearing 6 is axial inside it along workbench 1, prevents gear drive portion exposed.
Feed mechanism, including screw shaft 71, with screw shaft 71 coordinate feeding sliding block 72 and for driving screw shaft 71
Second driving motor 73 of rotation, both ends and the bearing 6 of the screw shaft 71 be rotatably assorted, and the screw pitch of screw shaft 71 with add
The screw pitch of work workpiece 100 is identical so that screw shaft 71 rotate a circle with movable slider 72 advance a screw pitch distance, the feeding
Sliding block 72 is fixed on the lower face of 11 bottom plate of supporting rack, to realize that the rotation of screw shaft 71 drives supporting rack 11 i.e. device entirety axis
To movement.
Driving portion, including the first operation handle 81, first gear 82 and the equal axial arranged splined shafts along workbench 1
83 and rotary shaft 84.First gear 82 is sheathed on the rear end that swivel mount 41 stretches out supporting rack 11；Splined shaft 83, with rotary shaft 84
Coaxial arrangement, one end and the bearing 6 of the splined shaft 83 are rotatably assorted, and the other end is connect with rotary shaft 84 by clutch, institute
It states splined shaft 83 and is equipped with spline gear 831, the spline gear 831 is meshed with first gear 82 by transition gear 821；
Rotary shaft 84, the other end are rotatably assorted with bearing 6, and stretch out outside bearing 6, and the outside that the rotary shaft 84 is located at bearing 6 is set
There are driving wheel 842, the driving wheel 842 to be connect by belt transmission with the output end of third driving motor；First operation handle
81, it is connected with clutch, for controlling connecting or separating for splined shaft 83 and rotary shaft 84.
When screw thread process is fed, driving portion provides power for device revolution, and splined shaft 83 and rotary shaft 84 are logical at this time
It crosses clutch and is in connection status, the second driving motor 73 imparts power to rotary shaft 84, and 84 one side of rotary shaft passes power
Splined shaft 83 is passed so that spline gear 831 rotates, so that first gear 82 drives swivel mount 41 to rotate, in this process
In, since feed mechanism drives 11 axial feed of supporting rack, and spline gear 831 passes through transition gear with first gear 82 always
821 are meshed, then spline gear 831 can be moved axially with first gear 82 on splined shaft 83 during feeding.
After completing to feed, the first operation handle 81 control clutch makes splined shaft 83 be disconnected with rotary shaft 84, then spline
The transmission of 83 5 power of axis stops operating, i.e. the revolution of rotary core shaft 33 is closed, and in withdrawing, spline gear 831 can be with the
One gear 82, which retreats, to be resetted, and spline gear 831 keeps meshing state with first gear 82 always.
In order to energy saving, driving portion and feed mechanism share the second driving motor 73 and realize driving.Wherein on workbench 1
Equipped with the power distribution cabinet 10 for 52 distribution of the second driving motor 73 and the first driving motor.
Therefore third driving motor and the second driving motor 73 are same driving motor；Rotary shaft 84 is located at bearing 6
Inside is equipped with second gear 841；Further include and splined shaft 83 and the transmission shaft 85 disposed in parallel of screw shaft 71；Transmission shaft 85,
Its both ends is rotatably assorted with bearing 6, and one end of the transmission shaft 85 is equipped with the third gear 851 being meshed with second gear 841,
The other end is equipped with the 4th gear 852；Screw shaft 71 which is provided with the 5th gear 711 being meshed with the 4th gear 852.
In this structure, rotary shaft 84 plays the role of to transmission power between mechanism and driving portion.Rotary shaft 84 and
Two driving motors 73 are connected, and are driving shaft, due to passing through third gear 851 and second gear between transmission shaft 85 and rotary shaft 84
841 engaged transmission, 85 another aspect of transmission shaft, which transmits the force to transmission shaft 85, makes its rotation, and due to transmission shaft 85 and screw rod
It is engaged by the 4th gear 852 and the 5th gear 711 between axis 71, to realize rotation driving 11 axis of supporting rack of screw shaft 71
To movement.And feed and withdrawing then can be achieved by rotating and reverse for the second driving motor 73.
And due to sliding block 72 and 831 advanced in unison of spline gear and retrogressing, distance between the two is definite value, therefore to subtract
83 unnecessary length of few screw shaft 71 and splined shaft, the two front and back can be arranged on a shaft.So bearing 6 further includes erecting
The straight support plate 61 for being located therein portion, the screw shaft 71 and 83 forward and backward setting of splined shaft, the opposite one end of the two with support plate 61
It is rotatably assorted.
In the longer dimension of workpieces processing 10, in order to improve withdrawing speed, processing efficiency is improved, so the 5th gear
711 include the 5th gear A 711a and the 5th gear B 711b that interval is arranged and the number of teeth is different, the transmission shaft 85 and the 4th tooth
One end of 852 connection of wheel is in spline structure, and the 4th gear 852 includes the 4th gear A 852a and the 4th tooth of connected setting
B852b is taken turns, the 4th gear A 852a and the 4th gear B 852b is able to and the 5th gear A 711a and the 5th gear
B711b is engaged, and the 4th gear 852 is meshed by the 5th gear 711 with the different numbers of teeth, changes the rotating speed of screw shaft 71, when
The 4th gear 852 fiveth gear 711 few with the number of teeth is meshed when withdrawing, improves withdrawing speed.It is set on 4th gear 852
There is the second operation handle 86 for driving it to be moved axially along spline structure.The high, low speed rotation of screw shaft 71 passes through the second operation
Handle 86 stirs the 4th gear 852 and the 5th different gears 711 and is meshed realization.
It is sagging after stretching into cutting mechanism to avoid the length of workpieces processing 10 long, therefore set at the rear of workbench 1
There are fixed support 91, the fixed support 91 to be equipped with the centration axis 92 being coaxially disposed with rotary core shaft 33, the centration axis 92
The other end stretch into swivel mount 41, withstand the center of workpieces processing 10, play top effect.
It the above is only presently preferred embodiments of the present invention, anyone content according to the present invention makes the present invention a little
Simple modification, deformation and equivalent replacement each fall within protection scope of the present invention.
Claims (10)
1. a kind of big screw pitch male thread processing device, including workbench (1), workpiece fixed mechanism (2), cutting mechanism, feeding machine
Structure and rotating mechanism；
Workpiece fixed mechanism (2) is set to one end of workbench (1) axial direction；
Workbench (1) which is provided with the supporting rack (11) for setting up cutting mechanism, and support frame as described above (11) is by feed mechanism
It can be along workbench (1) axially reciprocating；
It is characterized in that：
Supporting rack (11), " U "-shaped structure have with the bottom plate of the sliding cooperation in workbench (1) upper surface and vertically the bottom of set on
The supporting plate at plate both ends offers the circular vias coaxial with workpiece fixed mechanism (2) on the supporting plate；
Cutting mechanism, including threading tool (31), cutterhead (32) and rotary core shaft (33), the threading tool (31) include week
To the multiple of cutterhead (32) front end are distributed in, the front end and the rear end of cutterhead (32) of the rotary core shaft (33) are coaxially fixed, institute
It is in the tube-in-tube structure that workpieces processing (100) can be made to insert into the inner portion to state cutterhead (32) and rotary core shaft (33)；
Rotating mechanism, including the rotation component of driving and cutting mechanism itself rotation and driving and cutting mechanism are along workpieces processing
(100) the revolution component rotated；
Revolve round the sun component, including swivel mount (41), fixed frame (42), adjustment portion and driving portion；
Swivel mount (41) is in the cavity body structure of hollow out, and bottom has horizontally disposed support plate, and the both ends of swivel mount (41) have
There is the tube-in-tube structure stretched into supporting rack (11) circular vias, being equipped between the tube-in-tube structure and circular vias makes swivel mount
(41) swivel mount is stretched out in the front end of the first swivel bearing (411) that can be rotated on supporting rack (11), the cutting mechanism
(41) outside, rear end is located in swivel mount (41), and the internal diameter of swivel mount (41) the upper bush structure is more than rotary core shaft (33)
The rear end of outer diameter, the swivel mount (41) is stretched out outside the supporting plate of supporting rack (11)；
Fixed frame (42) is set in swivel mount (41), rounded tube-in-tube structure, and is sheathed in rotary core shaft (33), described
The second rotation for making rotary core shaft (33) that can be rotated in fixed frame (42) is equipped between fixed frame (42) and rotary core shaft (33)
Shaft is held (421), and the rotation component is fixed on fixed frame (42)；
Swivel mount (41) is connect by adjustment portion with fixed frame (42), and lower end and the support plate of swivel mount (41) are sliding, can be along work
Make the sliding of platform (1) width direction, the upper end is hinged with fixed frame (42), and the fixed frame (42) can be along hinged place tilted upward
And it locks；
Driving portion, the rear end that supporting rack (11) is stretched out with swivel mount (41) are connect, for driving swivel mount (41) to rotate.
2. a kind of big screw pitch male thread processing device according to claim 1, it is characterised in that：
Adjustment portion, including radial adjusting rails (43) and tilt adjusting seat (44)；
Radial adjusting rails (43), are fixed on the support plate of swivel mount (41), and are arranged along workbench (1) width direction；
Tilt adjusting seat (44), can the sliding of radially adjusted rail (43), bottom is equipped with to match with radial adjusting rails (43)
Sliding slot, upper part has two pieces of connecting plates being axially arranged along workbench (1), forms U-clamp slot, institute between two pieces of connecting plates
The bottom for stating fixed frame (42) is set in U-clamp slot, and the both ends of the connecting plate axial direction are respectively equipped with to be hinged with fixed frame (42)
Circular hole and passed through the adjustment hole of bolt and nut component locking with fixed frame (42), the adjustment hole opens along the vertical direction
If.
3. a kind of big screw pitch male thread processing device according to claim 2, it is characterised in that：The radial adjusting rails
(43) structure in the shape of an " I ", including twice disposed in parallel, and the upper surface of radial adjusting rails (43) has to tilt adjustment
The front and back protrusion positioned of seat (44).
4. a kind of big screw pitch male thread processing device according to claim 1, it is characterised in that：The rotation component includes
Sprocket wheel (51) set on rotary core shaft (33) rear end and the first driving motor (52) on fixed frame (42), described first
The output end of driving motor (52) is connect with sprocket wheel (51) by chain drive.
5. a kind of big screw pitch male thread processing device according to claim 1, it is characterised in that：
Further include the bearing (6) to take the shape of the letter U, the bearing (6) is axially set to inside it along workbench (1)；
Feed mechanism, including screw shaft (71), with screw shaft (71) cooperation feeding sliding block (72) and for driving screw shaft
(71) the second driving motor (73) rotated, both ends and the bearing (6) of the screw shaft (71) are rotatably assorted, and screw shaft
(71) screw pitch is identical as the screw pitch of workpieces processing (100), and the feeding sliding block (72) is fixed under supporting rack (11) bottom plate
End face.
6. a kind of big screw pitch male thread processing device according to claim 5, it is characterised in that：
Driving portion, including the first operation handle (81), first gear (82) and the equal axial arranged splines along workbench (1)
Axis (83) and rotary shaft (84)；
First gear (82) is sheathed on the rear end that swivel mount (41) stretches out supporting rack (11)；
Splined shaft (83) is coaxially disposed with rotary shaft (84), and one end and the bearing (6) of the splined shaft (83) are rotatably assorted, separately
One end is connect with rotary shaft (84) by clutch, and the splined shaft (83) is equipped with spline gear (831), the spline gear
(831) it is meshed by transition gear (821) with first gear (82)；
Rotary shaft (84), the other end are rotatably assorted with bearing (6), and stretch out bearing (6) outside, and the rotary shaft (84) is located at branch
The outside of seat (6) is equipped with driving wheel (842), and the driving wheel (842) and the output end of third driving motor pass through belt transmission
Connection；
First operation handle (81), is connected with clutch, for controlling connecting or separating for splined shaft (83) and rotary shaft (84).
7. a kind of big screw pitch male thread processing device according to claim 6, it is characterised in that：
The third driving motor and the second driving motor (73) are same driving motor；
Rotary shaft (84), the inside for being located at bearing (6) are equipped with second gear (841)；
Further include and splined shaft (83) and screw shaft (71) transmission shaft (85) disposed in parallel；
Transmission shaft (85), both ends are rotatably assorted with bearing (6), and one end of the transmission shaft (85) is equipped with and second gear
(841) the third gear (851) being meshed, the other end are equipped with the 4th gear (852)；
Screw shaft (71) which is provided with the 5th gear (711) being meshed with the 4th gear (852).
8. a kind of big screw pitch male thread processing device described according to claim 6 or 7, it is characterised in that：The bearing (6) is also
Support plate (61) including being located therein portion vertically, the screw shaft (71) and splined shaft (83) forward and backward setting, the two it is opposite one
End is rotatably assorted with support plate (61).
9. a kind of big screw pitch male thread processing device according to claim 7, it is characterised in that：5th gear
(711) include interval setting and different the 5th gear A (711a) and the 5th gear B (711b) of the number of teeth, the transmission shaft (85)
The one end being connect with the 4th gear (852) is in spline structure, and the 4th gear (852) includes the 4th gear A being arranged that is connected
(852a) and the 4th gear B (852b), the 4th gear A (852a) and the 4th gear B (852b) are able to and the 5th tooth
A (711a) and the engagement of the 5th gear B (711b) are taken turns, the 4th gear (852), which is equipped with, drives it axially to be moved along spline structure
Dynamic the second operation handle (86).
10. a kind of big screw pitch male thread processing device according to claim 1, it is characterised in that：The workbench (1)
Rear is equipped with fixed support (91), and the fixed support (91) is equipped with the centration axis being coaxially disposed with rotary core shaft (33)
(92), the other end of the centration axis (92) stretches into swivel mount (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265914.9A CN108296575B (en) | 2018-03-28 | 2018-03-28 | Large-pitch external thread machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265914.9A CN108296575B (en) | 2018-03-28 | 2018-03-28 | Large-pitch external thread machining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108296575A true CN108296575A (en) | 2018-07-20 |
| CN108296575B CN108296575B (en) | 2024-01-26 |
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ID=62847673
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810265914.9A Active CN108296575B (en) | 2018-03-28 | 2018-03-28 | Large-pitch external thread machining device |
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| Country | Link |
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| CN (1) | CN108296575B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113182620A (en) * | 2021-04-15 | 2021-07-30 | 南通德元机械制造有限公司 | Optimization method for helical milling cut-in trajectory of cylindrical external thread |
| CN113182622A (en) * | 2021-04-30 | 2021-07-30 | 许淑杰 | Automatic internal thread machining device |
| CN113199094A (en) * | 2021-05-25 | 2021-08-03 | 刘海民 | External thread machining device |
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| CN113199094A (en) * | 2021-05-25 | 2021-08-03 | 刘海民 | External thread machining device |
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|---|---|
| CN108296575B (en) | 2024-01-26 |
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