CN117464033B - Motor shaft finish machining turning equipment and method - Google Patents
Motor shaft finish machining turning equipment and method Download PDFInfo
- Publication number
- CN117464033B CN117464033B CN202311829992.4A CN202311829992A CN117464033B CN 117464033 B CN117464033 B CN 117464033B CN 202311829992 A CN202311829992 A CN 202311829992A CN 117464033 B CN117464033 B CN 117464033B
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- pressing rod
- workpiece shaft
- shaped groove
- block
- shaft
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- 238000003754 machining Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 101
- 230000005389 magnetism Effects 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 230000004075 alteration Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 49
- 230000000694 effects Effects 0.000 description 32
- 238000005299 abrasion Methods 0.000 description 6
- 239000010409 thin film Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 239000002775 capsule Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to the technical field of motor shaft machining, in particular to motor shaft finish machining turning equipment and a motor shaft finish machining turning method, comprising a machining center, wherein a workbench of the machining center is provided with a positioning block, the positioning block is provided with a V-shaped groove, and the V-shaped groove is used for placing a workpiece shaft to be machined; a film is attached to the surface of the V-shaped groove; the upper surface of the positioning block is provided with a fixing hole, a pressing rod is installed in the fixing hole, the pressing rod is in an inverted L shape, the upper vertical part of the pressing rod is provided with magnetism, and the upper horizontal part of the pressing rod is used for compressing and fixing a workpiece shaft; the invention has simple structure, can conveniently clamp the motor shaft under the condition of ensuring the stability of fixing the motor shaft, and improves the consistency of the finish machining size of the shaft and the production efficiency.
Description
Technical Field
The invention belongs to the technical field of motor shaft machining, and particularly relates to motor shaft finish machining turning equipment and a motor shaft finish machining turning method.
Background
In the machining process of the motor shaft, a plurality of key grooves are required to be uniformly formed in the motor shaft, in the machining process, the motor shaft is required to rotate for a certain angle after each key groove is machined, and after the key groove machining is finished, the motor shaft is required to be driven
The machining is carried out by heat treatment, and finally the finish machining of the key groove is carried out again, so that the machining of a motor shaft is completed, in the machining process, the workpiece is required to be subjected to heat treatment, two clamping machining processes are required, the workpiece angle deviation is easily caused in the front and rear clamping processes, the machining precision of the workpiece is reduced, meanwhile, a common clamp is complicated in clamping and fixing, the working efficiency of the clamp in use is seriously affected, and the clamp is not stable enough in the use process, so that great trouble is brought to the use of people.
Disclosure of Invention
In order to make up for the defects in the prior art, the motor shaft is conveniently clamped under the condition of ensuring the stability of fixing the motor shaft, and the consistency of the finish machining dimension of the shaft and the production efficiency are improved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to motor shaft finish machining turning equipment which comprises a machining center, wherein a positioning block is arranged on a workbench of the machining center, a V-shaped groove is formed in the positioning block, and the V-shaped groove is used for placing a workpiece shaft to be machined;
a film is attached to the surface of the V-shaped groove;
the upper surface of locating piece has seted up the fixed orifices, install the depression bar in the fixed orifices, the depression bar is the shape of falling L, vertical portion has magnetism on the depression bar, horizontal portion compresses tightly, fixes the work piece axle on the depression bar.
Preferably, the film is made of polytetrafluoroethylene material, and chromatic aberration exists between the film and the surface of the V-shaped groove.
Preferably, the briquetting is installed to horizontal part on the depression bar, rotate on the briquetting and install the connecting rod, threaded connection between horizontal part on connecting rod and the depression bar, be provided with the scale mark on the connecting rod, install the hydraulic capsule on the lower surface of briquetting.
Preferably, the mounting groove is formed in the lower surface of the pressing block, the hydraulic bag is mounted in the mounting groove, the limiting membrane is mounted on the mounting groove, the hydraulic bag is located between the limiting membrane and the mounting groove, and the width of the limiting membrane is larger than that of the mounting groove.
Preferably, the surface of the limiting membrane far away from the hydraulic bag is covered with a silica gel layer, and the limiting membrane is a PTFE membrane.
Preferably, the side of the positioning block is provided with a communication hole, the communication hole is communicated with the fixed hole, a locking block is arranged in the communication hole, the locking block is in contact with the vertical part on the pressure rod, magnetic attraction exists between the locking block and the vertical part on the pressure rod, and the surfaces of the locking block and the vertical part on the pressure rod are rough.
Preferably, the locking block is provided with an elastic piece, the tail end of the elastic piece points to the obliquely lower side, and the tail end of the elastic piece is in contact with the surface of the vertical part on the compression bar.
A motor shaft finish turning method suitable for use in a motor shaft finish turning apparatus as defined in any one of the preceding claims, the turning method comprising the steps of:
s1: placing the positioning blocks on a workbench of a machining center, adjusting the positions of the two positioning blocks and the distance between the two positioning blocks so that the two positioning blocks are positioned on the same straight line and the distance between the positioning blocks is equal to the length of a workpiece shaft to be machined, and then fixing the positioning blocks on the workbench through bolts;
s2: placing a workpiece shaft to be processed into a V-shaped groove on a positioning block, then inserting a pressing rod into a fixing hole and then inserting a locking block into a communication hole;
s3: pressing the pressing rod to enable the pressing rod to fully fix the workpiece shaft and enable the locking block to lock the position of the pressing rod;
s4: after the workpiece shaft is machined, the locking block and the pressing rod are sequentially loosened, and the workpiece shaft is taken away from the positioning block.
The beneficial effects of the invention are as follows:
1. according to the motor shaft finish machining turning equipment and method, the V-shaped groove and the thin film are arranged, the surfaces of the V-shaped groove are protected by the thin film, abrasion to the surfaces of the V-shaped groove during clamping and fixing of a workpiece shaft is avoided, positioning accuracy of the workpiece shaft is affected, further the finish machining effect of the workpiece shaft is affected, meanwhile, workers can replace the thin film in time after the thin film is damaged due to the fact that the color difference between the thin film and the V-shaped groove is different and the color difference is compared, the V-shaped groove is protected, and the positioning and fixing of the workpiece shaft are prevented from being affected.
2. According to the motor shaft finish machining turning equipment and method, the hydraulic bag, the limiting film, the locking block and the elastic sheet are arranged, the hydraulic bag and the limiting film can deform through the cooperation of the hydraulic bag and the limiting film and are attached to the surface of the workpiece shaft, the contact area when the workpiece shaft is fixed is increased, the fixing effect of the workpiece shaft is ensured, and meanwhile, the locking block and the elastic sheet are utilized to lock the vertical part on the pressing rod, so that the pressing rod can move downwards and not move upwards, the fixing effect of the workpiece shaft is further ensured, and the pressing rod is prevented from being separated from the fixing hole.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of the apparatus of the present invention;
FIG. 2 is a schematic view of the structure of a positioning block in the device of the present invention;
FIG. 3 is a schematic view of the structure of the locking block in the apparatus of the present invention;
FIG. 4 is a schematic view of the structure of the compact in the apparatus of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 2 at A;
FIG. 6 is an enlarged view of a portion of FIG. 2 at B;
FIG. 7 is an enlarged view of a portion of FIG. 2 at C;
FIG. 8 is a partial enlarged view at D in FIG. 4;
FIG. 9 is a flow chart of the method of the present invention;
in the figure: machining center 1, workstation 11, work piece axle 12, locating piece 2, V-arrangement groove 21, film 211, fixed orifices 22, depression bar 3, connecting rod 31, scale mark 311, briquetting 32, mounting groove 321, hydraulic capsule 33, limiting membrane 34, locking piece 4, shell fragment 41.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 9, the motor shaft finish machining turning device comprises a machining center 1, wherein a positioning block 2 is arranged on a workbench 11 of the machining center 1, a V-shaped groove 21 is arranged on the positioning block 2, and the V-shaped groove 21 is used for placing a workpiece shaft 12 to be machined;
a film 211 is attached to the surface of the V-shaped groove 21;
a fixing hole 22 is formed in the upper surface of the positioning block 2, a pressing rod 3 is installed in the fixing hole 22, the pressing rod 3 is in an inverted L shape, a vertical part on the pressing rod 3 is provided with magnetism, and a horizontal part on the pressing rod 3 is used for compressing and fixing the workpiece shaft 12;
when a motor shaft is finely machined, a workpiece shaft 12 is placed in a V-shaped groove 21 on a positioning block 2, then, a worker inserts a vertical part on a pressing rod 3 into a fixing hole 22, so that a horizontal part on the pressing rod 3 moves downwards and contacts the workpiece shaft 12, meanwhile, because the vertical part on the pressing rod 3 has magnetism, the vertical part on the pressing rod 3 is magnetically attracted and fixed after being inserted into the fixing hole 22, the pressing rod 3 is prevented from falling off automatically in the fine machining process of the workpiece shaft 12, the positioning and fixing of the workpiece shaft 12 are influenced, the fine machining effect of the workpiece shaft 12 is influenced, meanwhile, when different workpiece shafts 12 are machined through the V-shaped groove 21 arranged on the positioning block 2, the workpiece shaft 12 can have good repeated positioning precision and accuracy, the machining effect of the workpiece shaft 12 is ensured, meanwhile, the workpiece shaft 12 is fixed through the pressing rod 3, the clamping process of the workpiece shaft 12 is prevented from being complicated, and the working efficiency of the worker is influenced;
meanwhile, the film 211 is attached to the surface of the V-shaped groove 21, the film 211 can be used for protecting the surface of the V-shaped groove 21 on the positioning block 2, when the workpiece shaft 12 is subjected to finish machining, the possibility of abrasion or dirt generated on the surface of the V-shaped groove 21 by the workpiece shaft 12 is avoided or reduced, when the workpiece shaft 12 is clamped, the integrity and the cleanliness of the surface of the V-shaped groove 21 are ensured as much as possible, so that when the workpiece shaft 12 is placed in the V-shaped groove 21 on the positioning block 2, the workpiece shaft 12 can obtain good repeated positioning precision, the position accuracy of the workpiece shaft 12 is ensured, the finish machining effect of the workpiece shaft 12 is improved, meanwhile, when the V-shaped groove 21 on the positioning block 2 is required to be maintained, the attached film 211 can be directly replaced by a worker, the maintenance work of the V-shaped groove 21 is quickened, and when the surface of the V-shaped groove 21 is attached with dirt which is difficult to clean, the worker can clean the surface of the V-shaped groove 21 through the replacement of the film 211, the labor of the worker is reduced.
As one embodiment of the present invention, the film 211 is made of polytetrafluoroethylene material, and chromatic aberration exists between the film 211 and the surface of the V-shaped groove 21;
the film 211 attached to the surface of the V-shaped groove 21 has a color such as black, and the surface of the V-shaped groove 21 on the positioning block 2 is silvery white of metal, so that a very obvious color difference exists between the film 211 and the surface of the V-shaped groove 21, therefore, in the process of finishing the workpiece shaft 12, when the film 211 is damaged due to excessive friction, a worker can see the color of the surface of the V-shaped groove 21 from the position where the film 211 is damaged, so that obvious color difference is formed on the surface of the V-shaped groove 21, so that the worker can distinguish and find the damage of the film 211 in time, the worker can replace the film 211 on the surface of the V-shaped groove 21 as soon as possible, the V-shaped groove 21 is protected better, the damage of the surface of the V-shaped groove 21 is avoided, the precision of placing and fixing the workpiece shaft 12 on the positioning block 2 is influenced, and the effect of the workpiece shaft 12 after finishing is carried out subsequently;
meanwhile, as the film 211 is made of polytetrafluoroethylene materials, the friction coefficient of the film 211 is relatively small, when a worker places and clamps the workpiece shaft 12, the worker adjusts the workpiece shaft 12 placed in the V-shaped groove 21, the friction force between the workpiece shaft 12 and the positioning block 2 is relatively small, the adjustment of the position of the workpiece shaft 12 is convenient, the friction force between the workpiece shaft and the positioning block is reduced, the abrasion to the positioning block 2 and the workpiece shaft 12 can be reduced, and the normal finish machining process of the workpiece shaft 12 is ensured.
As an embodiment of the present invention, a pressing block 32 is mounted on the upper horizontal portion of the pressing rod 3, a connecting rod 31 is rotatably mounted on the pressing block 32, the connecting rod 31 is in threaded connection with the upper horizontal portion of the pressing rod 3, scale marks 311 are arranged on the connecting rod 31, and a hydraulic bag 33 is mounted on the lower surface of the pressing block 32;
after the vertical part of the pressing rod 3 is arranged in the fixing hole 22, the pressing block 32 arranged on the horizontal part of the pressing rod 3 contacts and presses the workpiece shaft 12 positioned in the V-shaped groove 21, so that the workpiece shaft 12 is fixed on the positioning block 2, the subsequent finish machining of the workpiece shaft 12 is facilitated, meanwhile, the hydraulic bag 33 is arranged on the pressing block 32, so that the hydraulic bag 33 is attached to the surface of the workpiece shaft 12, the contact area between the pressing block 32 and the workpiece shaft 12 is increased, the fixation of the workpiece shaft 12 is more stable, the movement or rotation of the workpiece shaft 12 in the finish machining process is avoided, and the finish machining effect of the workpiece shaft 12 and the safety in the machining process are influenced;
meanwhile, the liquid filled in the hydraulic bag 33 enables the acting force of the contact part of the hydraulic bag 33 and the workpiece shaft 12 to be the same, so that the damage to the surface of the workpiece shaft 12 caused by the small contact area when the workpiece shaft 12 is fixed is avoided under the condition of ensuring good fixing effect on the workpiece shaft 12, and meanwhile, the workpiece shafts 12 with different diameters can be fixed through the adaptability of the hydraulic bag 33, the application range of the positioning block 2 is enlarged, and the fixing effect on the workpiece shaft 12 is ensured;
meanwhile, since the pressing block 32 is mounted on the horizontal part of the pressing rod 3 through the connecting rod 31, when fixing the workpiece shafts 12 with different diameters, a worker can adjust the distance between the pressing block 32 and the horizontal part of the pressing rod 3 according to actual conditions, and the fixing effect is ensured.
As an embodiment of the present invention, a mounting groove 321 is formed on the lower surface of the pressing block 32, the hydraulic bladder 33 is mounted in the mounting groove 321, a limiting membrane 34 is mounted on the mounting groove 321, the hydraulic bladder 33 is located between the limiting membrane 34 and the mounting groove 321, and the width of the limiting membrane 34 is greater than the width of the mounting groove 321;
the hydraulic bag 33 is installed in the installation groove 321 on the pressing block 32, so that the side surface of the hydraulic bag 33 in the vertical direction is limited, when the hydraulic bag 33 is used for fixing the workpiece shaft 12, the side surface of the hydraulic bag 33 is prevented from expanding or swelling, the fixing effect of the hydraulic bag 33 is affected, meanwhile, when the hydraulic bag 33 is used for fixing the workpiece shaft 12 by installing the limiting film 34 on the installation groove 321, the limiting film 34 can synchronously deform along with the hydraulic bag 33, and because the stretching performance of the limiting film 34 is poor, the limiting film 34 limits the area, which is not contacted with the workpiece shaft 12, on the lower surface of the hydraulic bag 33, of the part, which is not contacted with the workpiece shaft 12, of the hydraulic bag 33 is prevented from expanding or swelling, and the fixing effect of the hydraulic bag 33 on the workpiece shaft 12 is affected;
meanwhile, the limiting membrane 34 is arranged on the mounting groove 321, the limiting membrane 34 is used for protecting the hydraulic bag 33, and the situation that the hydraulic bag 33 directly contacts the workpiece shaft 12 to cause abrasion or penetration of impurities on the surface of the hydraulic bag 33 to affect normal use of the hydraulic bag 33 is avoided.
As an embodiment of the present invention, a silica gel layer is covered on the surface of the limiting membrane 34 far away from the hydraulic bladder 33, and the limiting membrane 34 is a PTFE membrane;
through setting up the silica gel layer on the surface of limiting membrane 34 for hydraulic pressure bag 33 carries out the fixed time to work piece axle 12, the frictional force between work piece axle 12 and the limiting membrane 34 increases relatively, avoids work piece axle 12 to appear removing or rotate in the finishing process, simultaneously, because limiting membrane 34 is the PTFE membrane that the PTFE resin formed of scribbling on the base cloth that extremely fine glass fiber woven, thereby make the coefficient of friction on the limiting membrane 34 surface relatively less, thereby at hydraulic pressure bag 33 deformation, laminating work piece axle 12 in-process, reduce the friction between limiting membrane 34 and the hydraulic pressure bag 33 surface, avoid too much friction between the two, influence hydraulic pressure bag 33's life.
As an embodiment of the present invention, a communicating hole is formed on a side surface of the positioning block 2, the communicating hole is mutually communicated with the fixing hole 22, a locking block 4 is installed in the communicating hole, the locking block 4 is in contact with a vertical portion on the compression bar 3, a magnetic attraction force exists between the locking block 4 and the vertical portion on the compression bar 3, and the surfaces of the locking block 4 and the vertical portion on the compression bar 3 are rough;
after the vertical part on the pressure lever 3 is inserted into the fixing hole 22, the locking block 4 is inserted into the communication hole, so that the locking block 4 and the vertical part on the pressure lever 3 are contacted with each other, meanwhile, due to the magnetic acting force of mutual attraction between the locking lever and the vertical part on the pressure lever 3 and the rough surface of the locking lever and the vertical part on the pressure lever 3, relatively large friction force exists between the locking lever and the vertical part on the pressure lever 3, the vertical part on the pressure lever 3 is locked in the fixing hole 22, and the fact that the pressure lever 3 is separated from the fixing hole 22 when being subjected to external force, the fixing effect on the workpiece shaft 12 and the finish machining effect of the workpiece shaft 12 are further avoided.
As an embodiment of the present invention, the locking block 4 is provided with a spring piece 41, the tail end of the spring piece 41 points obliquely downward, and the tail end of the spring piece 41 contacts with the surface of the vertical part on the compression bar 3;
meanwhile, because the magnetic attraction exists between the locking block 4 and the vertical part on the pressing rod 3, the locking block 4 can move in the communication hole towards the direction of the vertical part on the pressing rod 3, at the moment, the elastic sheet 41 installed on the locking block 4 can contact the vertical part on the pressing rod 3, and because the elastic sheet 41 is installed obliquely downwards, after the elastic sheet 41 contacts the pressing rod 3, the pressing rod 3 is further locked by the elastic sheet 41, the vertical part on the pressing rod 3 can move downwards and cannot move upwards, so that the fixing effect of the pressing rod 3 on the workpiece shaft 12 is fully ensured, the pressing rod 3 is prevented from being influenced by external force in the finish machining process of the workpiece shaft 12, the vertical part on the pressing rod 3 is separated from the fixing hole 22, the fixing failure of the workpiece shaft 12 is caused, and the finish machining effect of the workpiece shaft 12 and the safety in the finish machining process are influenced.
A motor shaft finish turning method suitable for use in a motor shaft finish turning apparatus as defined in any one of the preceding claims, the turning method comprising the steps of:
s1: placing the positioning blocks 2 on a workbench 11 of the machining center 1, adjusting the positions of the two positioning blocks 2 and the distance between the two positioning blocks so that the two positioning blocks 2 are positioned on the same straight line and the distance between the positioning blocks 2 is equal to the length of a workpiece shaft 12 to be machined, and then fixing the positioning blocks 2 on the workbench 11 through bolts;
s2: the workpiece shaft 12 to be processed is placed in the V-shaped groove 21 on the positioning block 2, and then the pressing rod 3 is inserted into the fixing hole 22 and the locking block 4 is inserted into the communication hole;
s3: pressing the pressing rod 3, so that the pressing rod 3 fully fixes the workpiece shaft 12, and the locking block 4 locks the position of the pressing rod 3;
s4: after the workpiece shaft 12 is machined, the locking block 4 and the pressing rod 3 are sequentially loosened, and the workpiece shaft 12 is taken away from the positioning block 2.
The specific working procedure is as follows:
when a motor shaft is finely machined, a workpiece shaft 12 is placed in a V-shaped groove 21 on a positioning block 2, then, a worker inserts a vertical part on a pressing rod 3 into a fixing hole 22, so that a horizontal part on the pressing rod 3 moves downwards and contacts the workpiece shaft 12, meanwhile, because the vertical part on the pressing rod 3 has magnetism, the vertical part on the pressing rod 3 is magnetically attracted and fixed after being inserted into the fixing hole 22, the pressing rod 3 is prevented from falling off automatically in the fine machining process of the workpiece shaft 12, the positioning and fixing of the workpiece shaft 12 are influenced, the fine machining effect of the workpiece shaft 12 is influenced, meanwhile, when different workpiece shafts 12 are machined through the V-shaped groove 21 arranged on the positioning block 2, the workpiece shaft 12 can have good repeated positioning precision and accuracy, the machining effect of the workpiece shaft 12 is ensured, meanwhile, the workpiece shaft 12 is fixed through the pressing rod 3, the clamping process of the workpiece shaft 12 is prevented from being complicated, and the working efficiency of the worker is influenced;
meanwhile, the film 211 is attached to the surface of the V-shaped groove 21, so that the surface of the V-shaped groove 21 on the positioning block 2 can be protected by the film 211, the possibility of abrasion or dirt generated on the surface of the V-shaped groove 21 by the workpiece shaft 12 when the workpiece shaft 12 is clamped is avoided or reduced when the workpiece shaft 12 is subjected to finish machining, the integrity and the cleanliness of the surface of the V-shaped groove 21 are ensured as much as possible, when the workpiece shaft 12 is placed in the V-shaped groove 21 on the positioning block 2, the workpiece shaft 12 can obtain good repeated positioning precision, the position accuracy of the workpiece shaft 12 is ensured, the finish machining effect of the workpiece shaft 12 is improved, meanwhile, when the V-shaped groove 21 on the positioning block 2 is required to be maintained, the attached film 211 can be directly replaced by a worker, the maintenance work of the V-shaped groove 21 is quickened, and when the surface of the V-shaped groove 21 is attached with dirt which is difficult to clean, the worker can conveniently clean the surface of the V-shaped groove 21 through the replacement of the film 211, and the labor of the worker is reduced;
the film 211 attached to the surface of the V-shaped groove 21 has a color such as black, and the surface of the V-shaped groove 21 on the positioning block 2 is silvery white of metal, so that a very obvious color difference exists between the film 211 and the surface of the V-shaped groove 21, therefore, in the process of finishing the workpiece shaft 12, when the film 211 is damaged due to excessive friction, a worker can see the color of the surface of the V-shaped groove 21 from the position where the film 211 is damaged, so that obvious color difference is formed on the surface of the V-shaped groove 21, so that the worker can distinguish and find the damage of the film 211 in time, the worker can replace the film 211 on the surface of the V-shaped groove 21 as soon as possible, the V-shaped groove 21 is protected better, the damage of the surface of the V-shaped groove 21 is avoided, the precision of placing and fixing the workpiece shaft 12 on the positioning block 2 is influenced, and the effect of the workpiece shaft 12 after finishing is carried out subsequently;
meanwhile, as the film 211 is prepared from polytetrafluoroethylene materials, the friction coefficient of the film 211 is relatively small, when a worker carries out the placing and clamping process on the workpiece shaft 12, the friction force between the workpiece shaft 12 and the positioning block 2 is relatively small when the worker carries out the adjustment on the workpiece shaft 12 placed in the V-shaped groove 21, the adjustment on the position of the workpiece shaft 12 is convenient, the friction force between the workpiece shaft 12 and the positioning block 2 is reduced, the abrasion on the positioning block 2 and the workpiece shaft 12 can be reduced, and the normal finish machining process of the workpiece shaft 12 is ensured;
after the vertical part of the pressing rod 3 is arranged in the fixing hole 22, the pressing block 32 arranged on the horizontal part of the pressing rod 3 contacts and presses the workpiece shaft 12 positioned in the V-shaped groove 21, so that the workpiece shaft 12 is fixed on the positioning block 2, the subsequent finish machining of the workpiece shaft 12 is facilitated, meanwhile, the hydraulic bag 33 is arranged on the pressing block 32, so that the hydraulic bag 33 is attached to the surface of the workpiece shaft 12, the contact area between the pressing block 32 and the workpiece shaft 12 is increased, the fixation of the workpiece shaft 12 is more stable, the movement or rotation of the workpiece shaft 12 in the finish machining process is avoided, and the finish machining effect of the workpiece shaft 12 and the safety in the machining process are influenced;
meanwhile, the liquid filled in the hydraulic bag 33 enables the acting force of the contact part of the hydraulic bag 33 and the workpiece shaft 12 to be the same, so that the damage to the surface of the workpiece shaft 12 caused by the small contact area when the workpiece shaft 12 is fixed is avoided under the condition of ensuring good fixing effect on the workpiece shaft 12, and meanwhile, the workpiece shafts 12 with different diameters can be fixed through the adaptability of the hydraulic bag 33, the application range of the positioning block 2 is enlarged, and the fixing effect on the workpiece shaft 12 is ensured;
meanwhile, as the pressing block 32 is arranged on the horizontal part on the pressing rod 3 through the connecting rod 31, when fixing the workpiece shafts 12 with different diameters, a worker can adjust the distance between the pressing block 32 and the horizontal part on the pressing rod 3 according to actual conditions, so that the fixing effect is ensured;
the hydraulic bag 33 is installed in the installation groove 321 on the pressing block 32, so that the side surface of the hydraulic bag 33 in the vertical direction is limited, when the hydraulic bag 33 is used for fixing the workpiece shaft 12, the side surface of the hydraulic bag 33 is prevented from expanding or swelling, the fixing effect of the hydraulic bag 33 is affected, meanwhile, when the hydraulic bag 33 is used for fixing the workpiece shaft 12 by installing the limiting film 34 on the installation groove 321, the limiting film 34 can synchronously deform along with the hydraulic bag 33, and because the stretching performance of the limiting film 34 is poor, the limiting film 34 limits the area, which is not contacted with the workpiece shaft 12, on the lower surface of the hydraulic bag 33, of the part, which is not contacted with the workpiece shaft 12, of the hydraulic bag 33 is prevented from expanding or swelling, and the fixing effect of the hydraulic bag 33 on the workpiece shaft 12 is affected;
meanwhile, the limiting membrane 34 is arranged on the mounting groove 321, and the limiting membrane 34 is used for protecting the hydraulic bag 33, so that the hydraulic bag 33 is prevented from directly contacting the workpiece shaft 12, and the surface of the hydraulic bag 33 is prevented from being worn or pierced by impurities, so that the normal use of the hydraulic bag 33 is influenced;
by arranging the silica gel layer on the surface of the limiting film 34, when the hydraulic bag 33 fixes the workpiece shaft 12, the friction force between the workpiece shaft 12 and the limiting film 34 is relatively increased, so that the workpiece shaft 12 is prevented from moving or rotating in the finish machining process, meanwhile, the limiting film 34 is a PTFE film formed by smearing PTFE resin on a base cloth woven by superfine glass fibers, so that the friction coefficient on the surface of the limiting film 34 is relatively smaller, and the friction between the limiting film 34 and the surface of the hydraulic bag 33 is reduced in the process of deforming and attaching the hydraulic bag 33 to the surface of the workpiece shaft 12, so that the service life of the hydraulic bag 33 is prevented from being influenced due to excessive friction between the limiting film and the surface of the hydraulic bag 33;
after the vertical part of the pressing rod 3 is inserted into the fixing hole 22, the locking block 4 is inserted into the communication hole, so that the locking block 4 and the vertical part of the pressing rod 3 are in contact with each other, meanwhile, due to the magnetic force of attraction between the locking rod and the vertical part of the pressing rod 3 and the rough surface of the locking rod and the vertical part of the pressing rod 3, relatively large friction force exists between the locking rod and the vertical part of the pressing rod 3, the vertical part of the pressing rod 3 is locked in the fixing hole 22, and the fact that the pressing rod 3 is separated from the fixing hole 22 when being subjected to external force, the fixing effect on the workpiece shaft 12 and the finish machining effect of the workpiece shaft 12 are further avoided;
meanwhile, because the magnetic attraction exists between the locking block 4 and the vertical part on the pressing rod 3, the locking block 4 can move in the communication hole towards the direction of the vertical part on the pressing rod 3, at the moment, the elastic sheet 41 installed on the locking block 4 can contact the vertical part on the pressing rod 3, and because the elastic sheet 41 is installed obliquely downwards, after the elastic sheet 41 contacts the pressing rod 3, the pressing rod 3 is further locked by the elastic sheet 41, the vertical part on the pressing rod 3 can move downwards and cannot move upwards, so that the fixing effect of the pressing rod 3 on the workpiece shaft 12 is fully ensured, the pressing rod 3 is prevented from being influenced by external force in the finish machining process of the workpiece shaft 12, the vertical part on the pressing rod 3 is separated from the fixing hole 22, the fixing failure of the workpiece shaft 12 is caused, and the finish machining effect of the workpiece shaft 12 and the safety in the finish machining process are influenced.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The motor shaft finish machining turning equipment comprises a machining center (1), wherein a positioning block (2) is arranged on a workbench (11) of the machining center (1), a V-shaped groove (21) is formed in the positioning block (2), and the V-shaped groove (21) is used for placing a workpiece shaft (12) to be machined;
the method is characterized in that: a film (211) is attached to the surface of the V-shaped groove (21);
the positioning block (2) is provided with a fixing hole (22), a pressing rod (3) is arranged in the fixing hole (22), the pressing rod (3) is in an inverted L shape, the vertical part of the pressing rod (3) is provided with magnetism, and the horizontal part of the pressing rod (3) is used for compressing and fixing the workpiece shaft (12);
a pressing block (32) is arranged on the upper horizontal part of the pressing rod (3), and a hydraulic bag (33) is arranged on the lower surface of the pressing block (32);
the lower surface of the pressing block (32) is provided with a mounting groove (321), the hydraulic bag (33) is mounted in the mounting groove (321), the mounting groove (321) is provided with a limiting membrane (34), the hydraulic bag (33) is positioned between the limiting membrane (34) and the mounting groove (321), and the width of the limiting membrane (34) is larger than that of the mounting groove (321);
the side of the positioning block (2) is provided with a communication hole, the communication hole is communicated with a fixing hole (22), a locking block (4) is arranged in the communication hole, the locking block (4) is in contact with the vertical part on the pressure rod (3), magnetic attraction exists between the locking block (4) and the vertical part on the pressure rod (3), and the surfaces of the locking block (4) and the vertical part on the pressure rod (3) are rough;
the locking block (4) is provided with an elastic piece (41), the tail end of the elastic piece (41) points to the obliquely lower side, and the tail end of the elastic piece (41) is in contact with the surface of the vertical part on the compression bar (3).
2. The motor shaft finish turning apparatus of claim 1, wherein: the film (211) is made of polytetrafluoroethylene materials, and chromatic aberration exists between the film (211) and the surface of the V-shaped groove (21).
3. The motor shaft finish turning apparatus of claim 1, wherein: the surface of the limiting membrane (34) far away from the hydraulic bag (33) is covered with a silica gel layer, and the limiting membrane (34) is a PTFE membrane.
4. A finish machining turning method of a motor shaft is characterized by comprising the following steps of: the turning method is applicable to a motor shaft finishing turning device as claimed in any one of the preceding claims 1-3, and comprises the steps of:
s1: placing the positioning blocks (2) on a workbench (11) of a machining center (1), adjusting the positions of the two positioning blocks (2) and the distance between the two positioning blocks, enabling the two positioning blocks (2) to be positioned on the same straight line and the distance between the positioning blocks (2) to be equal to the length of a workpiece shaft (12) to be machined, and then fixing the positioning blocks (2) on the workbench (11) through bolts;
s2: the workpiece shaft (12) to be processed is placed in a V-shaped groove (21) on the positioning block (2), then the pressing rod (3) is inserted into the fixing hole (22) and the locking block (4) is inserted into the communication hole;
s3: pressing the pressing rod (3) to enable the pressing rod (3) to fully fix the workpiece shaft (12) and enable the locking block (4) to lock the position of the pressing rod (3);
s4: after the workpiece shaft (12) is machined, the locking block (4) and the pressing rod (3) are sequentially loosened, and the workpiece shaft (12) is taken away from the positioning block (2).
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| CN202311829992.4A CN117464033B (en) | 2023-12-28 | 2023-12-28 | Motor shaft finish machining turning equipment and method |
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| CN202311829992.4A CN117464033B (en) | 2023-12-28 | 2023-12-28 | Motor shaft finish machining turning equipment and method |
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| CN117464033B true CN117464033B (en) | 2024-03-19 |
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