CN113798598A - Machining process of combined gear applied to transmission of automobile windscreen wiper - Google Patents
Machining process of combined gear applied to transmission of automobile windscreen wiper Download PDFInfo
- Publication number
- CN113798598A CN113798598A CN202111055038.5A CN202111055038A CN113798598A CN 113798598 A CN113798598 A CN 113798598A CN 202111055038 A CN202111055038 A CN 202111055038A CN 113798598 A CN113798598 A CN 113798598A
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- Prior art keywords
- gear
- transmission
- windscreen wiper
- driving part
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F1/00—Making gear teeth by tools of which the profile matches the profile of the required surface
- B23F1/04—Making gear teeth by tools of which the profile matches the profile of the required surface by planing or slotting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a combined gear processing technology applied to automobile windscreen wiper transmission, which comprises the following steps: sleeving the gear on a motor driving shaft, covering a rotary sleeve cover on the rotary seat, and primarily clamping and fixing the gear through the chuck while driving the cover to move downwards; step-by-step processing gear: the cylinder drives the sliding block to move downwards in an inclined mode to enable the serrated knife to start slotting the gear, wherein the serrated knife is provided with multiple sections of sizes, the cylinder is driven to move downwards in a stepping mode, the size of each downwards moving is equal to that of each section of serrated knife, each section of bolt moves downwards for multiple times, the smallest section of the cylinder is initially cut until the largest section of the cylinder is finished in fine cutting, and then gear machining is finished. The gear machining device comprises a gear rotating component, a gear clamping component, a gear rotating component, a gear detecting component and a gear detecting component.
Description
Technical Field
The invention relates to the technical field of gear manufacturing and processing, in particular to a combined gear processing technology applied to automobile windscreen wiper transmission.
Background
Gears are toothed mechanical parts that can mesh with one another and are used in a very wide variety of mechanical transmission and overall mechanical applications. The precision of each gear tooth of the gear and the distance between adjacent gear teeth are very important for the normal operation of the gear, and the gear with low precision and irregular teeth not only can generate jitter and noise when being meshed with other standard gears to influence the transmission effect, but also can influence the whole service life of the applied equipment. Therefore, it is necessary to detect the gear teeth after machining. Meanwhile, gears in the existing common automobile windscreen wiper transmission mechanism are all manufactured by metal injection molding, and the manufactured gears are provided with metal rotating shafts.
The gear machining can generally adopt gear milling, forming gear grinding, gear hobbing, gear shaving, gear shaping and generating gear grinding, wherein the gear shaping performs the slotting operation of continuously moving up and down on a gear to be machined which does circular motion through a proportional relation, and the gear shaping performs reciprocating deep jacking/gear grinding along the outer edge of the gear when moving up and down, so that the gear possibly rotates relative to a clamp when stressed to generate displacement deviation, and the gear position of the machined adjacent gear is inaccurate.
In order to solve the problems, the scheme is developed accordingly.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a combined gear processing technology applied to the transmission of an automobile windscreen wiper, and solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a machining process for a combined gear applied to transmission of an automobile windscreen wiper comprises the following steps of (1) installing and machining a gear: sleeving the gear on a motor driving shaft, covering a rotary sleeve cover on the rotary seat, and primarily clamping and fixing the gear through the chuck while driving the cover to move downwards; (2) step-by-step processing gear: the cylinder drives the sliding block to move downwards in an inclined mode to enable the serrated knife to start slotting the gear, wherein the serrated knife has multiple sections of sizes, the cylinder is driven to move downwards in a stepping mode, the size of each downwards moving is equal to that of each section of serrated knife, each section of bolt moves downwards for multiple times, the smallest section of the cylinder is initially cut until the largest section of the cylinder is finished in fine cutting, and then the gear is machined into the gear with the inclined groove; (3) the gear cutter clamping device comprises a clamping piece, a displacement sensor, a standard gear, a detection device and a control device, wherein the clamping piece is arranged on the clamping piece, the displacement sensor is arranged on the lower portion of the standard gear, and the standard gear is arranged on the lower portion of the gear to be machined and used as a virtual gear to detect and control the machining precision of the gear.
Preferably, the displacement sensor, the air cylinder and the motor are connected with the same PLC control program for operation.
A combined gear machining device applied to transmission of an automobile windscreen wiper comprises a rack, wherein a first driving part and a second driving part are arranged on the rack, the first driving part is used for driving a gear to rotate, and the second driving part is used for synchronously clamping and cutting the gear; the gear shaping cutter element comprises a plurality of tooth cutters with gradually increased or decreased sizes, the tooth cutter with the largest size is the same as the tooth groove in size, the interval between the tooth cutter with the smallest size and the gear is the closest, and the tooth groove cutter element is connected with the driving end of the driving part II and driven by the driving part II to do oblique upward and downward movement; the clamping piece comprises a chuck, the chuck is located on the upper side of the gear, the middle of the chuck is provided with a through groove, the inner wall of the chuck is connected with a push-back structure, and the clamping piece further comprises a plurality of clamping heads, and the clamping heads are connected to the upper side of the chuck and connected with the extending end of the second driving part.
Preferably, the first driving part comprises a motor, the motor is arranged at the bottom of the rack, the output end of the first driving part is connected with a rotary seat, the upper part of the rotary seat is provided with a thread, the radial size of the upper part of the rotary seat is smaller than the size of a central hole of the gear, the rotary seat is movably connected with a sleeve cover in threaded connection with the rotary seat, and the sleeve cover and the rotary seat clamp the gear to drive the gear to rotate.
Preferably, the push-back structure comprises a cap, wherein the cap is sleeved on the periphery of the sleeve cover and is connected with the sleeve cover through a spring, so that automatic push-back can be performed when the force is not applied, and the peripheral wall of the cap is connected with the inner wall of the chuck.
Preferably, the driving part II comprises an air cylinder, the air cylinder is arranged at the top of the rack in an inclined state, the output end of the air cylinder is connected with the gear shaping cutter, the outer side of the clamping head is connected with an iron block through a transmission rod, an electromagnet is arranged below the iron block, and the air cylinder drives the gear shaping cutter to process a gear.
Preferably, the slotting cutter piece further comprises a sliding block, the sliding block is slidably arranged on a sliding rail arranged on the rack, the sliding rail is obliquely arranged, a plurality of mounting holes are formed in the inner side of the sliding block and are arranged at intervals along the moving direction of the sliding block, and a mounting block is arranged on the outer side of the slotting cutter and is fixedly connected with the sliding block through a bolt.
Preferably, the device further comprises a measuring component, the measuring component is a displacement sensor and a standard gear, the standard gear is coaxially connected below the gear, and the displacement sensor is arranged on one side of the standard gear.
(III) advantageous effects
After adopting the technical scheme, compared with the prior art, the invention has the following advantages: the invention relates to a combined gear machining process applied to automobile windscreen wiper transmission, which comprises the steps of separately operating a rotating gear and a clamping gear, detecting the rotation deviation displacement of the gear by a back detection part, further controlling the gear machining precision, and simultaneously completing the gear machining from rough machining to finish machining by adopting a step-by-step gear shaping machining mode, wherein the gear cutter is protected on one hand, and the machining efficiency is improved on the other hand.
Drawings
FIG. 1 is a schematic view of the process of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 3 is a disassembled schematic view of the present invention;
FIG. 4 is a schematic exploded overhead view of the present invention;
FIG. 5 is a schematic view of a structural joint of the gear shaping insert of the present invention;
fig. 6 is a disassembled view of the two-part structure of the driving part of the present invention.
In the figure: the device comprises a machine frame 1, a driving part I2, a motor 21, a rotary seat 22, a sleeve cover 23, a driving part II 3, a cylinder 31, an iron block 32, an electromagnet 33, a gear shaping cutter 4, a toothed cutter 41, a sliding block 42, a clamping part 5, a chuck 51, a clamping head 52, a push-back structure 6, a cap 61, a spring 62, a slide rail 7, an installation hole position 8, a measuring part 9, a displacement sensor 91, a standard gear 92, a gear 10 and an electric induction section 11.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
A combined gear machining process applied to transmission of an automobile windscreen wiper comprises the following steps
(1) Installing and processing the gear: the gear 10 is sleeved on a driving shaft of the motor 21, the rotary sleeve cover 23 covers the rotary seat 22, and the sleeve cover 23 drives the cover cap 61 to move downwards and simultaneously clamps and fixes the gear primarily through the chuck 51.
(2) Step-by-step processing gear: the air cylinder 31 drives the sliding block 42 to move downwards in an inclined mode to enable the toothed cutter 41 to begin slotting the gear, wherein the toothed cutter 41 has multiple sections of sizes, the air cylinder 31 is driven to move downwards in a stepping mode, the size of each downwards moving is equal to that of each section of toothed cutter 41, each section of bolt moves downwards for multiple times, the smallest section of the toothed cutter is initially cut until the largest section of the toothed cutter is finished in fine cutting, and then the gear 10 with the inclined grooves is machined.
(3) The displacement is set, when the toothed cutter 41 contacts the gear, the clamping piece 5 starts to work to clamp the gear stably, and meanwhile, the displacement sensor 91 and the standard gear 92 are arranged, and the standard gear 92 is arranged below the gear to be machined and used as a virtual gear to be machined to detect and control the machining precision of the gear.
The conventional gear shaping operation process is that the gear to be machined is driven to rotate through circular motion of the proportional relation seat, and one gear slot is machined through slotting by jacking the toothed cutter 41 once every time the gear to be machined rotates, the process is completely continuous, the gear and the driving end are easy to loosen slightly due to stress in the gear shaping process, and the machining precision is influenced due to the fact that the rotation allowance exists.
Therefore, the gear machining precision is controlled by separately operating the rotating gear and the clamping gear and detecting the rotation deviation displacement of the gear by the back detection part 9, and meanwhile, the gear machining is completed from rough machining to finish machining step by step in a stepping gear shaping machining mode, so that the toothed cutter 41 is protected on one hand, and the machining efficiency is improved on the other hand.
That is, the accuracy control is realized by the feedback member 9, a specific reference gear 92 is coaxially connected below the gear, and the displacement sensor 91 is provided on one side of the reference gear 92. Wherein the motor 21 rotates once to process a gear groove every time of drive, and the sense terminal of displacement sensor 91 aims at the middle part position of the teeth of the standard gear 92, and the gear to be processed rotates with the standard gear 92 in step, and then can control the precision of gear processing through virtualizing the pivoted displacement deviation in the standard gear 92 (can set up a plurality of continuous little archs in the middle part position of each teeth of the standard gear 92, record little protruding volume and obtain the rotation deviation volume).
The displacement sensor monitors the rotation deviation of the small bulge of the standard gear in real time in the processing process of the toothed cutter, feeds back the rotation deviation, and gives a motor back-up command through the PLC to control the gear displacement deviation in the processing process in real time.
The displacement sensor 91, the air cylinder 31 and the motor 21 are connected to the same PLC control program for unified operation.
As shown in fig. 1-6: the combined gear machining device applied to transmission of the automobile windscreen wiper comprises a rack 1, wherein a first driving part 2 and a second driving part 3 are arranged on the rack 1, the first driving part 2 is used for driving a gear to rotate, and the second driving part 3 is used for synchronously clamping and cutting the gear.
Referring to fig. 2, the slotting cutter 41 is formed by connecting a plurality of slotting cutters 41 with increasing or decreasing sizes, wherein the slotting cutter 41 with the largest size is the same as the size of the tooth space, the interval between the slotting cutter 41 with the smallest size and the gear is the closest, and the slotting cutter is connected with the driving end of the driving part two 3 and driven by the driving end to do inclined upward and downward movement (to be matched with the bevel gear to be processed).
The slotting tool 41 pieces 4 further comprise a sliding block 42, the sliding block 42 is arranged on a sliding rail 7 arranged on the rack 1 in a sliding mode, the sliding rail 7 is arranged in an inclined mode, a mounting hole position 8 is formed in the inner side of the sliding block 42, the mounting hole position 8 is provided with a plurality of mounting holes and is formed at intervals along the moving direction of the sliding block 42, a mounting block is arranged on the outer side of the slotting tool 41 and is fixedly connected with the sliding block 42 through bolts, the position of the slotting tool 41 can be adjusted according to the size of a gear to be machined, and the slotting tool 41 can be replaced quickly.
Referring to fig. 4, the clamping member 5 includes a chuck plate 51, the chuck plate 51 is located at an upper side of the gear, a through groove is formed at a middle portion of the chuck plate 51, and an inner wall thereof is connected to a return structure 6, and a plurality of clamping heads 52, the clamping heads 52 are connected to an upper side of the chuck plate 51 and connected to extension ends of the driving members 3.
The first driving part 2 comprises a motor 21, the motor 21 is arranged at the bottom of the rack 1, the output end of the motor is connected with a rotating seat 22, the upper part of the rotating seat 22 is provided with threads, the radial dimension of the upper part of the rotating seat is smaller than the dimension of a central hole of the gear, the rotating seat 22 is movably connected with a sleeve cover 23 in threaded connection with the rotating seat, and the sleeve cover 23 and the rotating seat 22 clamp the gear to drive the gear to rotate.
The push-back structure 6 comprises a cap 61, wherein the cap 61 is sleeved on the outer periphery of the cover 23 and connected with the outer periphery of the cover by a spring 62, so that automatic push-back can be performed when no force is applied, and the outer peripheral wall of the cap 61 is connected with the inner wall of the chuck 51.
The holder 5 separates the operation through rotating the process with drive gear in this scheme, and holder 5 breaks away from the centre gripping when rotating, then carries out the centre gripping in real time at the beginning gear shaping processing that moment, reduces the error of skew, and concrete process is as follows.
Referring to fig. 1, 5 and 6, the second driving part 3 includes an air cylinder 31, the air cylinder 31 is disposed at the top of the frame 1 in an inclined state, the output end of the air cylinder 31 is connected to the slotting cutter 41 and the slotting cutter 4, the outer side of the clamping head 52 is connected to an iron block 32 through a transmission rod, an electromagnet 33 is disposed below the iron block 32, and the air cylinder 31 drives the slotting cutter 41 and the slotting cutter 4 to machine a gear.
The cylinder 31 drives the sliding block 42 to move on the sliding rail 7, the sliding rail 7 is provided with an electric induction section, the inner side of the sliding block 42 is provided with an electric guide block adapted to the sliding block, and when the sliding block 42 moves to the electric induction section 11, the electromagnet 33 forms a closed loop and is open-circuit. According to the scheme, when the sliding block 42 drives the toothed cutter 41 to move to the electric induction section, the toothed cutter 41 with the minimum section size starts to contact with the gear, when the toothed cutter 41 moving downwards to the maximum section size leaves the gear, the sliding block 42 is wholly separated from the electric induction section 11, so that real-time clamping is realized, the time of a contact induction feedback process is extremely short (when the power is not switched on, the spring 62 can drive the toothed cutter to reset instantly and does not generate any rotation resistance to the gear), and the machining precision is higher.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the protection scope must be determined by the scope of the claims.
Claims (8)
1. A combined gear machining process applied to automobile windscreen wiper transmission is characterized by comprising the following steps of: the processing technology comprises
(1) Installing and processing the gear: sleeving the gear on a motor driving shaft, covering a rotary sleeve cover on the rotary seat, and primarily clamping and fixing the gear through the chuck while driving the cover to move downwards;
(2) step-by-step processing gear: the cylinder drives the sliding block to move downwards in an inclined mode to enable the serrated knife to start slotting the gear, wherein the serrated knife has multiple sections of sizes, the cylinder is driven to move downwards in a stepping mode, the size of each downwards moving is equal to that of each section of serrated knife, each section of bolt moves downwards for multiple times, the smallest section of the cylinder is initially cut until the largest section of the cylinder is finished in fine cutting, and then the gear is machined into the gear with the inclined groove;
(3) the gear cutter clamping device comprises a clamping piece, a displacement sensor, a standard gear, a detection device and a control device, wherein the clamping piece is arranged on the clamping piece, the displacement sensor is arranged on the lower portion of the standard gear, and the standard gear is arranged on the lower portion of the gear to be machined and used as a virtual gear to detect and control the machining precision of the gear.
2. The machining process of the combined gear applied to the transmission of the automobile windscreen wiper as claimed in claim 1, wherein the machining process comprises the following steps: and the displacement sensor, the air cylinder and the motor are connected with the same PLC control program for operation.
3. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 1, wherein: comprises that
The gear cutting machine comprises a rack, wherein a first driving part and a second driving part are arranged on the rack, the first driving part is used for driving a gear to rotate, and the second driving part is used for synchronously clamping and cutting the gear;
the gear shaping cutter element comprises a plurality of tooth cutters with gradually increased or decreased sizes, wherein the tooth cutter with the largest size is the same as the tooth groove in size, the interval between the tooth machining cutter with the smallest size and the gear is the closest, and the tooth groove cutter element is connected with the driving end of the driving part II and driven by the driving part II to do oblique upward and downward movement;
the clamping piece comprises a chuck, the chuck is located on the upper side of the gear, the middle of the chuck is provided with a through groove, the inner wall of the chuck is connected with a push-back structure, and the clamping piece further comprises a plurality of clamping heads, and the clamping heads are connected to the upper side of the chuck and connected with the extending end of the second driving part.
4. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 3, wherein: the first driving part comprises a motor, the motor is arranged at the bottom of the rack, the output end of the first driving part is connected with a rotary seat, the upper part of the rotary seat is provided with a thread, the radial size of the upper part of the rotary seat is smaller than the size of a central hole of the gear, the rotary seat is movably connected with a sleeve cover in threaded connection with the rotary seat, and the sleeve cover and the rotary seat clamp the gear to drive the gear to rotate.
5. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 4, wherein: the push-back structure comprises a cover cap, wherein the cover cap is sleeved on the periphery of the cover cap and is connected with the cover cap through a spring, so that automatic push-back can be performed when the cover cap is not stressed, and the peripheral wall of the cover cap is connected with the inner wall of the chuck.
6. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 1, wherein: the driving part II comprises an air cylinder, the air cylinder is arranged at the top of the rack in an inclined state, the output end of the air cylinder is connected with the gear shaping cutter, the outer side of the clamping head is connected with an iron block through a transmission rod, an electromagnet is arranged below the iron block, and the air cylinder drives the gear shaping cutter to process a gear.
7. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 6, wherein: the gear shaping cutter piece further comprises a sliding block, the sliding block is arranged on a sliding rail arranged on the rack in a sliding mode, the sliding rail is arranged in an inclined mode, the sliding block is driven by the air cylinder to move along the sliding rail, a plurality of mounting hole positions are formed in the inner side of the sliding block and are arranged at intervals along the moving direction of the sliding block, and mounting blocks are arranged on the outer side of the gear cutter and are fixedly connected with the sliding block through bolts.
8. The combined gear machining device applied to the transmission of the automobile windscreen wiper as claimed in claim 3, wherein: still include and return the survey part, return and survey the part and be displacement sensor and standard gear, standard gear coaxial coupling is in the below of gear, and one side of standard gear is located to displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111055038.5A CN113798598B (en) | 2021-09-09 | 2021-09-09 | Machining process and machining device for combined gear applied to transmission of automobile windscreen wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111055038.5A CN113798598B (en) | 2021-09-09 | 2021-09-09 | Machining process and machining device for combined gear applied to transmission of automobile windscreen wiper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113798598A true CN113798598A (en) | 2021-12-17 |
| CN113798598B CN113798598B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111055038.5A Active CN113798598B (en) | 2021-09-09 | 2021-09-09 | Machining process and machining device for combined gear applied to transmission of automobile windscreen wiper |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004025333A (en) * | 2002-06-24 | 2004-01-29 | Kashifuji:Kk | Gear working machine |
| CN106041225A (en) * | 2016-08-25 | 2016-10-26 | 李健 | Finish machining device of tooth grooves of gears |
| CN207154923U (en) * | 2017-08-08 | 2018-03-30 | 泰兴市金城纺机齿轮制造有限公司 | A kind of efficiently gear of textile machine processing gear shapping machine |
| JP2018086688A (en) * | 2016-11-28 | 2018-06-07 | 三菱重工工作機械株式会社 | Gear processing method and gear fixing device |
| CN110948061A (en) * | 2019-12-31 | 2020-04-03 | 索特传动设备有限公司 | Fixing device with flange surface component |
| CN212526366U (en) * | 2020-06-19 | 2021-02-12 | 重庆旭乾通机械制造有限公司 | Gear shaping machine |
| CN112605478A (en) * | 2020-12-31 | 2021-04-06 | 王宏斌 | Gear machining equipment |
-
2021
- 2021-09-09 CN CN202111055038.5A patent/CN113798598B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004025333A (en) * | 2002-06-24 | 2004-01-29 | Kashifuji:Kk | Gear working machine |
| CN106041225A (en) * | 2016-08-25 | 2016-10-26 | 李健 | Finish machining device of tooth grooves of gears |
| JP2018086688A (en) * | 2016-11-28 | 2018-06-07 | 三菱重工工作機械株式会社 | Gear processing method and gear fixing device |
| CN207154923U (en) * | 2017-08-08 | 2018-03-30 | 泰兴市金城纺机齿轮制造有限公司 | A kind of efficiently gear of textile machine processing gear shapping machine |
| CN110948061A (en) * | 2019-12-31 | 2020-04-03 | 索特传动设备有限公司 | Fixing device with flange surface component |
| CN212526366U (en) * | 2020-06-19 | 2021-02-12 | 重庆旭乾通机械制造有限公司 | Gear shaping machine |
| CN112605478A (en) * | 2020-12-31 | 2021-04-06 | 王宏斌 | Gear machining equipment |
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| CN113798598B (en) | 2022-10-28 |
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