CN112676871A - Positioning tool for drilling fan gear - Google Patents
Positioning tool for drilling fan gear Download PDFInfo
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- CN112676871A CN112676871A CN202011506221.8A CN202011506221A CN112676871A CN 112676871 A CN112676871 A CN 112676871A CN 202011506221 A CN202011506221 A CN 202011506221A CN 112676871 A CN112676871 A CN 112676871A
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- indexing
- rotary table
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- fan gear
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to the technical field of fan gear machining, in particular to a positioning tool for fan gear drilling, which comprises a base and an indexing mechanism for indexing a workpiece, wherein a turntable is rotatably arranged on the base, a positioning mechanism for positioning the workpiece is arranged on the turntable, a fixing mechanism for fixing the turntable is also arranged on the base, the positioning mechanism comprises a plurality of supporting disks fixed on the top of the turntable, the supporting disks are annularly arrayed on the turntable by taking the circle center of the turntable as an array center, an adjusting disk is rotatably connected to the supporting disks, the rotating center of the adjusting disk deviates from the circle center of the adjusting disk, and an area enclosed between the adjusting disks is a placing area for placing the workpiece. The invention can solve the problem that the existing tool can only position one type of gear.
Description
Technical Field
The invention relates to the technical field of fan gear machining, in particular to a positioning tool for fan gear drilling.
Background
When the fan gear is produced and processed, operations such as drilling, turning, polishing and the like need to be carried out on the fan gear. When a circle of holes need to be drilled on the end face of the gear, the gear is generally hoisted to a positioning tool to be positioned at present, the end face of the gear is driven to rotate through the driving tool to drill a circle of holes, the rotating angle of the tool is required to be the same every time during drilling, and therefore the distance between every two holes on the gear is guaranteed to be the same.
The existing positioning tool can only position the gear of one type, and an additional positioning tool is required to be arranged when the gears of other types are machined, so that the equipment cost is high.
Disclosure of Invention
The invention aims to provide a positioning tool for drilling a fan gear, and solves the problem that the existing tool can only position gears of one type.
In order to achieve the purpose, the invention provides the following technical scheme:
fan gear drilling is with location frock, including the base and be used for giving the indexing mechanism of work piece graduation, it is provided with the carousel to rotate on the base, is provided with the positioning mechanism who is used for giving the work piece location on the carousel, still is provided with the fixed establishment who is used for fixed carousel on the base, positioning mechanism includes a plurality of supporting disks of fixing at the carousel top, and the supporting disk uses the centre of a circle of carousel as array center annular array on the carousel, rotates on the supporting disk and is connected with the adjustment disk, and the center of rotation of adjustment disk is skew its centre of a circle, and the region of enclosing between the adjustment disk is for placing the region of work.
The principle and the beneficial effect of the scheme are as follows:
the base is used for installing carousel and each mechanism, and positioning mechanism is used for giving the work piece location, and the supporting disk is used for installing the adjustment disk, and the region of enclosing between the adjustment disk is used for placing the work piece. The rotation center eccentric settings of adjustment disk can adjust the radius of its region of placing that encloses through rotating the adjustment disk to place the work piece of different excircles, adapt to the location of the work piece of different models. After the adjusting discs are adjusted in place, the outer circle of the workpiece is hung down along the edges of the adjusting discs, so that the workpiece can be initially positioned, and the positioning effect of the workpiece is improved. After the workpiece is positioned on the turntable, the turntable is fixed by the fixing mechanism, so that the workpiece can be fixed, and the workpiece can be drilled. The indexing mechanism is arranged for indexing the workpiece, namely the workpiece is driven to rotate by the same angle each time through rotating the turntable and then is fixed (namely indexing), and then drilling is carried out, so that a circle of holes with the same interval are machined on the end face of the workpiece. The area that the work piece was placed is confirmed to the adjusting disk that adopts the eccentric center of rotation setting in this scheme, and the radius in the area is placed in the regulation that can relax through rotating the adjusting disk to place the work piece of different excircles, simple structure, convenient operation.
Furthermore, the positioning mechanism also comprises a thimble, and the thimble can be connected with the workpiece.
Has the advantages that: the bottom of the fan gear is provided with a blind hole which is called a center hole, and the ejector pin is used for being inserted into the center hole at the bottom of the workpiece to assist in positioning the workpiece, so that the workpiece positioning effect is improved.
Furthermore, the thimble is vertically connected between the base and the turntable in a sliding manner, and a compensation spring is connected between the bottom end of the thimble and the base.
Has the advantages that: with the arrangement, the length of the thimble can be compensated by the compensation spring, so that the thimble can adapt to positioning of workpieces with different depths of the central hole.
Furthermore, the top end of the thimble is conical.
Has the advantages that: the adjusting disc is used for initially positioning the workpiece, but the workpiece still has micro deviation, and when the workpiece is hoisted and then has the micro deviation, the conical thimble can extrude the workpiece by utilizing the conical characteristic of the conical thimble and finally inserts the workpiece into the central hole of the workpiece, so that the precise positioning of the workpiece is realized, and the positioning effect of the workpiece is further improved.
Furthermore, positioning mechanism still includes clamp plate, pull rod and ejector pin, and the connection can be dismantled on the adjustment disk to the pull rod, and pull rod and clamp plate sliding connection offer the screw hole on the clamp plate, ejector pin threaded connection in the screw hole, ejector pin bottom sliding connection is on the supporting disk.
Has the advantages that: the pressure plate, the ejector rod and the pull rod can be driven to rotate by rotating the adjusting disc, the pressure plate is pulled away from the workpiece, and the workpiece is released; the pressing plate is tightly pressed on the workpiece, so that the positioning of the workpiece can be realized, and the positioning effect of the workpiece is better by combining the ejector pin and the pressing plate; the pull rod is pulled out, the pressing plate can be rotated to move along the ejector rod, and therefore the position height of the pressing plate is adjusted to adapt to pressing of workpieces of different models.
Furthermore, the indexing mechanism comprises a plurality of indexing holes and indexing pins which can be inserted into the indexing holes, the indexing holes surround a circle, the distance from each indexing hole to the circle center of the rotary table is the same, and the distance between each indexing hole is also the same.
Has the advantages that: the indexing pin is inserted into the indexing hole, so that the turntable can be fixed for drilling; the index pin is pulled out from the index hole, and the rotary table can be rotated to perform indexing.
Further, the indexing hole is arranged at the bottom of the turntable.
Has the advantages that: the indexing holes are arranged at the bottom of the rotary table, so that scraps generated in the drilling process can be prevented from entering the indexing holes.
Furthermore, the base is provided with an indexing seat, the indexing pin is vertically and slidably connected in the indexing seat, and a return spring is connected between the indexing pin and the indexing seat.
Has the advantages that: the indexing pin is pulled down, the indexing pin can be pulled out from the indexing hole by compressing the return spring, and the turntable can rotate at the moment; when the rotary table rotates to align the indexing hole and the indexing pin, the indexing pin can be rapidly inserted into the indexing hole under the action of the reset spring, manual operation is not needed, the automation degree is high, and the reset spring is utilized for boosting, so that the accuracy of inserting the indexing pin can be improved.
Furthermore, the turntable is provided with a plurality of circles of the indexing holes, the number of the indexing holes in each circle is different, the number of the indexing pins is a plurality, and the indexing seat is provided with locking grooves for locking the indexing pins.
Has the advantages that: the arrangement of the plurality of circles of indexing holes can process different numbers of holes for workpieces of different types, so that the application range is wider; locking grooves are arranged on the indexing base for locking the indexing pins which are not used temporarily.
Further, fixed establishment includes the splint of base plate and U type, and splint are detained at the carousel edge, and the base plate can be dismantled with the base and be connected, and the base plate bottom is connected with vertical clamping spring, and the clamping spring both sides are provided with vertical uide pin, uide pin and base plate sliding connection, and the uide pin top is provided with the jump ring, and the uide pin bottom is located the side fixed connection of carousel bottom with splint, and threaded connection has the depression bar that can offset with the carousel on another side of splint.
Has the advantages that: the pressing rod is rotated and moves downwards along the clamping plate, when the pressing rod cannot move continuously after abutting against the rotary table, the clamping plate moves upwards, so that the guide pin is driven to move to abut against the bottom of the rotary table, and the clamping spring is compressed, so that the rotary table is clamped, and the rotary table is fixed; the turnplate is clamped from the top and the bottom, and compared with the mode of directly pressing the turnplate from the top, the scheme can avoid the turnplate from floating up and down, and has better fixing effect; all set up the uide pin in clamping spring both sides, not only can give clamping spring direction, can also further avoid the carousel to rotate, fixed effectual.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a first embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of an index pin according to one embodiment of the present invention;
fig. 4 is a right side view of fig. 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a pressure lever 1, a guide pin 3, a clamping spring 4, a clamping plate 5, a base plate 6, a supporting plate 7, an adjusting plate 8, a rotary table 9, a base 10, a thimble 11, a compensation spring 12, a thimble sleeve 13, an indexing pin 14, a return spring 15, an indexing hole 16, an indexing seat 17, a locking groove 18, a thimble 19, a pull rod 20, a guide block 21 and a pressure plate 22.
Example one
As shown in figures 1 and 2, the positioning tool for drilling the gear of the fan comprises a rectangular base 10, a rotary table 9 is rotatably mounted on the base 10, a thimble sleeve 13 is connected to the center of the base 10 through a vertical bolt, two ends of the thimble sleeve 13 are opened, and the top end of the thimble sleeve 13 penetrates through the top of the rotary table 9. A thimble 11 is vertically and slidably connected in the thimble sleeve 13, the top end of the thimble 11 is conical, the taper is 60 degrees, and a compensation spring 12 is connected between the bottom end of the thimble 11 and the base 10. The thimble 11 is used for inserting into a central hole at the bottom of the workpiece to center the workpiece.
Three supporting disks 7 (only two are shown in fig. 2) are bolted on the top of the rotary disk 9, and the three supporting disks 7 are annularly arrayed on the rotary disk 9 by taking the circle center of the rotary disk 9 as an array center. All rotate on the three carousel 9 and be connected with adjustment disk 8, the centre of rotation of adjustment disk 8 deviates from its centre of a circle, and the region of enclosing between three adjustment disk 8 is the region of placing the work piece. A pressing plate 22 is installed on the two adjusting discs 8, a vertical pull rod 20 is connected to the pressing plate 22 in a sliding mode, the bottom end of the pull rod 20 is fixedly connected with a connecting block, a strip-shaped hole is formed in each adjusting disc 8, and the connecting block is clamped in the strip-shaped hole; the top end of the pull rod 20 extends through the pressing plate 22 to the upper side of the pressing plate 22 and is fixed on the pressing plate 22 by a nut. Still threaded connection has ejector pin 19 on the clamp plate 22, and ejector pin 19 runs through clamp plate 22 and sets up, rotates on the supporting disk 7 and is connected with curved guide block 21, and 19 bottom bolted connections of ejector pin are on guide block 21, and guide block 21 can rotate around adjusting disk 8.
Four circles of indexing holes 16 are formed in the bottom of the rotary table 9, the four circles of indexing holes 16 are concentrically arranged, the distance from each indexing hole 16 in each circle to the center of the rotary table 9 is the same, and the distances between the indexing holes 16 in each circle are the same. In this embodiment, the number of the four circles of the indexing holes 16 is 12, 13, 14 and 15 in turn from inside to outside, and of course, the number of the indexing holes 16 and the number of the circles of the indexing holes 16 may be set according to the number of holes to be drilled in a workpiece in actual use.
As can be seen from fig. 3 and 4, the bottom of the rotary table 9 is bolted with four indexing bases 17, indexing grooves are vertically formed in the four indexing bases 17, indexing pins 14 which can be respectively inserted into four indexing holes 16 are vertically and slidably mounted in the indexing grooves, and a return spring 15 is connected between the bottoms of the indexing pins 14 and the indexing grooves. One side of the indexing groove is transversely communicated with a locking groove 18, and the indexing pin 14 can be locked by moving into the locking groove 18 so as to be prevented from sliding in the indexing groove.
The fixing mechanism for fixing the rotary table 9 is installed on one side of the rotary table 9 and comprises a base plate 6 and a U-shaped clamp plate 5, the clamp plate 5 is buckled on the edge of the rotary table 9, the upper side of the clamp plate 5 is located at the top of the rotary table 9, the upper side of the clamp plate 5 is in threaded connection with a vertical press rod 1, the bottom end of the press rod 1 can be abutted to the top of the rotary table 9, and a steel sleeve (not shown in the figure) is embedded at the bottom end of the press rod 1 to prevent the rotary. The base plate 6 is detachably connected with the base 10 through a bolt, a counter bore is formed in the bottom of the base plate 6, a vertical clamping spring 4 is installed in the counter bore, guide pins 3 are vertically installed on two sides of the clamping spring 4, the upper portion of each guide pin 3 is large in diameter and small in diameter of the lower portion, the lower portion of each guide pin 3 is tightly connected to the lower side of the corresponding clamping plate 5, and the upper portion of each guide pin 3 is connected with the base plate 6 in a sliding mode, and the top end of each guide pin can move to the position. The top of the guide pin 3 is bolted with a clamp spring (not shown in the figure), and the clamp spring can be clamped on the top of the substrate 6.
The specific implementation process is as follows:
the three adjusting disks 8 are rotated according to the excircle sizes of the workpieces, so that the region defined by the three adjusting disks 8 can smoothly put down the workpieces, and the positioning device can be suitable for positioning the workpieces with different excircle sizes. After the adjustment is completed, the workpiece is hoisted, so that the outer circle of the workpiece clings to the edges of the three adjusting discs 8 to fall, the workpiece is hoisted to the rotary table 9, the outer circle of the workpiece clings to the three adjusting discs 8 to fall, and the initial positioning of the workpiece can be realized.
After the workpiece falls onto the turntable 9, the ejector pin 11 can be inserted into a central hole at the bottom of the workpiece, so that the workpiece is centered and positioned. Even if the workpiece has small deviation during hoisting, the ejector pin 11 with the conical top can push the workpiece under strong jacking force, so that the workpiece can be perfectly inserted into the central hole at the bottom of the workpiece, the precise positioning of the workpiece is realized, and the positioning effect of the workpiece is improved. After the workpiece is hoisted to the turntable 9, the pressing plate 22 is pressed on the workpiece, and the positioning of the workpiece can be realized.
After the positioning is finished, the end face of the workpiece is drilled, and the corresponding index pin 14 is selected according to the number (12, 13, 14 or 15) of holes to be drilled on the workpiece. In the embodiment, 12 are taken as an example, the other three index pins 14 are locked before drilling, specifically, the other three index pins 14 are pressed down, so that the compensation springs 12 connected with the index pins are compressed; when the three indexing pins 14 are moved to the locking grooves 18 and then rotated into the locking grooves 18 to be locked, the three indexing pins 14 cannot be reset by the compensation spring 12, thereby locking the three indexing pins 14 and separating the three indexing pins 14 from the dial 9.
Rotating the dial 9 so that the index pin 14 is inserted into one index hole 16 of a selected circle of index holes 16; then, the pressing rod 1 is rotated to enable the pressing rod 1 to move downwards, when the pressing rod 1 is tightly abutted against the top of the rotary table 9, the pressing rod 1 cannot move downwards continuously, and the clamping plate 5 moves upwards along the pressing rod 1 (the clamping plate 5 is in threaded connection with the pressing rod 1); the pressing plate 22 drives the two guide pins 3 to move upwards, the clamping spring 4 is compressed, the two guide pins 3 abut against the bottom of the rotary table 9, the rotary table 9 is clamped, and at the moment, a first hole can be drilled in the workpiece.
After the first hole is machined, the selected index pin 14 is pressed down, so that the compensation spring 12 is compressed, and the index pin 14 is pulled out of the index hole 16 and separated from the rotary table 9; simultaneously, the pressure rod 1 is unscrewed, the pressure rod 1 is separated from the top of the rotary table 9, a gap is formed between the clamping plate 5 and the rotary table 9, the clamping spring 4 is reset to push the clamping plate 5 to move downwards, so that the two guide pins 3 are driven to move downwards until the clamp spring is clamped on the substrate 6, a gap is also formed between the bottom of the rotary table 9 and the two guide pins 3, and the rotary table 9 can rotate. When the rotary table 9 is rotated, the next indexing hole 16 rotates to the position above the indexing pin 14, the indexing pin 14 is rapidly inserted into the indexing hole 16 under the action of the compensation spring 12, the rotary table 9 is clamped by the clamping plate 5 again, a second hole can be machined in the workpiece at the moment, and the like, so that the drilling of the workpiece can be completed.
In the embodiment, the workpiece is tightly hung on the three adjusting discs 8, so that the workpiece can be initially positioned; the conical thimble 11 can drive the workpiece to move slightly under the action of the conical shape of the thimble, so that the thimble is inserted into the central hole of the workpiece, the precise positioning of the workpiece is realized, and the workpiece positioning effect is good. The adjusting discs 8 arranged eccentrically are adjusted to position the workpieces adapting to different excircles, the ejector pins 11 are arranged in a sliding mode and connected with the compensating springs 12, and the adjusting discs are adaptable to the workpieces with different depths of the center holes, so that the adjusting discs can adapt to machining of the workpieces of different models, and the application range is wide. And this embodiment can process the hole of multiple quantity to the work piece, has further enlarged accommodation, has practiced thrift equipment cost.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Fan gear drilling is with location frock, its characterized in that: the rotary indexing mechanism comprises a base and an indexing mechanism for indexing workpieces, wherein a rotary table is arranged on the base in a rotating mode, a positioning mechanism for positioning the workpieces is arranged on the rotary table, a fixing mechanism for fixing the rotary table is further arranged on the base, the positioning mechanism comprises a plurality of supporting discs fixed to the top of the rotary table, the supporting discs are arranged on the rotary table in an array center annular array mode by using the circle center of the rotary table as the center of the array, an adjusting disc is connected to the supporting discs in a rotating mode, the rotating center of the adjusting disc deviates from the circle center of the adjusting disc, and an area enclosed between the adjusting.
2. The fan gear drilling of claim 1 is with location frock, its characterized in that: the positioning mechanism further comprises a thimble, and the thimble can be connected with the workpiece.
3. The fan gear drilling of claim 2 is with location frock, its characterized in that: the thimble is vertically connected between the base and the turntable in a sliding manner, and a compensation spring is connected between the bottom end of the thimble and the base.
4. The fan gear drilling of claim 3 is with location frock, its characterized in that: the top end of the thimble is conical.
5. The fan gear drilling of claim 1 is with location frock, its characterized in that: the positioning mechanism further comprises a pressing plate, a pull rod and an ejector rod, the pull rod is detachably connected to the adjusting plate, the pull rod is in sliding connection with the pressing plate, a threaded hole is formed in the pressing plate, the ejector rod is in threaded connection with the threaded hole, and the bottom end of the ejector rod is in sliding connection with the supporting plate.
6. The fan gear drilling of claim 1 is with location frock, its characterized in that: the indexing mechanism comprises a plurality of indexing holes and indexing pins which can be inserted into the indexing holes, the indexing holes surround a circle, the distance from each indexing hole to the circle center of the rotary table is the same, and the distance between each indexing hole is also the same.
7. The fan gear drilling of claim 6 is with location frock, its characterized in that: the indexing hole is arranged at the bottom of the rotary table.
8. The fan gear drilling of claim 7 is with location frock, its characterized in that: the base is provided with an indexing seat, the indexing pin is vertically and slidably connected in the indexing seat, and a return spring is connected between the indexing pin and the indexing seat.
9. The fan gear drilling of claim 8 is with location frock, its characterized in that: the rotary table is provided with a plurality of circles of the indexing holes, the number of the indexing holes in each circle is different, the number of the indexing pins is a plurality, and the indexing seat is provided with locking grooves for locking the indexing pins.
10. The fan gear drilling of claim 1 is with location frock, its characterized in that: the fixing mechanism comprises a base plate and a U-shaped clamp plate, the clamp plate is buckled at the edge of the rotary table, the base plate is detachably connected with the base, the bottom of the base plate is connected with a vertical clamping spring, vertical guide pins are arranged on two sides of the clamping spring and are connected with the base plate in a sliding mode, clamp springs are arranged on the top ends of the guide pins, the bottom end of each guide pin is fixedly connected with the side edge of the bottom of the rotary table, and the other side edge of the clamp plate is in threaded connection with a pressing rod which can be.
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CN202011506221.8A CN112676871B (en) | 2020-12-18 | 2020-12-18 | Positioning tool for drilling fan gear |
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CN202011506221.8A CN112676871B (en) | 2020-12-18 | 2020-12-18 | Positioning tool for drilling fan gear |
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CN112676871B CN112676871B (en) | 2022-09-13 |
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Cited By (5)
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CN113732934A (en) * | 2021-08-03 | 2021-12-03 | 阜阳市鑫盈田智能设备有限公司 | Grinding equipment with right-angle rotating mechanism for optical fiber processing |
CN113976956A (en) * | 2021-12-17 | 2022-01-28 | 常州机电职业技术学院 | Mechanical automation precise positioning drilling device and working method thereof |
CN114952708A (en) * | 2022-06-08 | 2022-08-30 | 河南中烟工业有限责任公司 | Quick aligning and replacing tool for safety pin of cigarette making machine |
CN115090939A (en) * | 2022-06-27 | 2022-09-23 | 重庆荆江汽车半轴股份有限公司 | Flange positioning device for milling machine |
CN118080923A (en) * | 2024-04-24 | 2024-05-28 | 佳木斯电机股份有限公司 | Rotatory frock of end shield drilling processing |
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CN114952708A (en) * | 2022-06-08 | 2022-08-30 | 河南中烟工业有限责任公司 | Quick aligning and replacing tool for safety pin of cigarette making machine |
CN115090939A (en) * | 2022-06-27 | 2022-09-23 | 重庆荆江汽车半轴股份有限公司 | Flange positioning device for milling machine |
CN118080923A (en) * | 2024-04-24 | 2024-05-28 | 佳木斯电机股份有限公司 | Rotatory frock of end shield drilling processing |
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