CN218533071U - Full-automatic self-adaptation cycloid wheel location frock - Google Patents
Full-automatic self-adaptation cycloid wheel location frock Download PDFInfo
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- CN218533071U CN218533071U CN202223024903.2U CN202223024903U CN218533071U CN 218533071 U CN218533071 U CN 218533071U CN 202223024903 U CN202223024903 U CN 202223024903U CN 218533071 U CN218533071 U CN 218533071U
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Abstract
The utility model relates to a full-automatic self-adaptive cycloid wheel positioning tool, which comprises a control device, a base and a plurality of positioning blocks arranged on the same circumference of the base; a plurality of positioning blocks are uniformly arranged around the circle center of the circumference; each positioning block is correspondingly provided with a driving device, a distance sensor and a force sensor; the driving devices are used for driving each corresponding positioning block to radially move along the circumference and applying pressure to the cycloidal gears in the circumference so as to clamp the cycloidal gears together; the distance sensors are used for acquiring real-time distance values between each corresponding distance sensor and the cycloid wheel; each force sensor is used for detecting a real-time pressure value applied to the cycloid wheel by the corresponding positioning block; the control device is used for controlling each positioning block to increase the pressure on the cycloidal gear until the real-time pressure value detected by each force sensor is equal to the preset pressure value when the real-time distance value detected by each distance sensor is equal to the preset distance value. The centering can be performed quickly, automatically and reliably, and high-precision processing is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the manufacturing of RV reduction gear, concretely relates to full-automatic self-adaptation cycloid wheel location frock.
Background
The cycloid wheel is a general name of a cylindrical gear with a tooth profile of various cycloids or equidistant curves of the cycloids. When processing the cycloid wheel, firstly, the cycloid wheel needs to be positioned by a tool.
In the prior art, a method of drilling first and then positioning is mainly adopted to position a cycloid wheel. Specifically, a center hole for positioning is drilled in the center of a workpiece to be machined, and then the workpiece to be machined is rotated by a machine tool to machine an eccentric hole of the cycloid gear.
It has the following technical problems:
the positioning can be realized only by drilling on the cycloid wheel, the overall appearance of the cycloid wheel is damaged, and the machining efficiency is low.
Therefore, people hope to develop a novel cycloidal gear positioning tool.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims at: the utility model provides a full-automatic self-adaptation cycloid wheel location frock need not to drill the location on the cycloid wheel, can realize quick automatic reliable centering, is favorable to realizing high accuracy processing.
The utility model discloses the purpose is realized through following technical scheme:
a full-automatic self-adaptive cycloid wheel positioning tool comprises a control device, a base and a plurality of positioning blocks arranged on the same circumference of the base;
a plurality of positioning blocks are uniformly arranged around the circle center of the circumference;
each positioning block is correspondingly provided with a driving device, a distance sensor and a force sensor;
the driving devices are used for driving each corresponding positioning block to radially move along the circumference and applying pressure to the cycloidal gears in the circumference so as to clamp the cycloidal gears together;
the distances from each distance sensor to the circle center of the circumference are respectively equal, and the distance sensors are used for acquiring real-time distance values between each corresponding distance sensor and the cycloid wheel in the moving process of each positioning block;
each force sensor is used for detecting a real-time pressure value applied to the cycloid wheel by the corresponding positioning block;
the control device is respectively connected with the driving device, the force sensors and the distance sensors and is used for controlling each driving device to drive the corresponding positioning block to increase the pressure of the cycloid wheel to the real-time pressure value detected by each force sensor to be equal to the preset pressure value when the real-time distance value detected by each distance sensor is equal to the preset distance value.
Further, still include the anti-migration device, the anti-migration device is connected respectively in base and locating piece for prevent that the locating piece from producing the circumference skew.
Furthermore, the deviation preventing device comprises a groove arranged on the base and a sliding block arranged on the positioning block, the groove extends from the positioning block to the direction of the circle center of the circumference, the sliding block is matched with the groove, and the sliding block is connected with the groove in a sliding manner.
Furthermore, the front end of the positioning block is provided with a copying tooth which is matched with the tooth profile of the cycloidal gear.
Furthermore, detachably is connected with closing device on the base, and closing device is used for compressing tightly the cycloid wheel terminal surface.
Further, closing device includes connecting bolt, spring and pressure strip, and the spring both ends butt respectively in base and pressure strip, and connecting bolt wears to locate pressure strip, spring and base in proper order, and connecting bolt threaded connection is in the base.
Further, be equipped with balance bolt and balance nut between pressure strip and the base, balance nut upper end butt in pressure strip lower extreme, balance bolt wears to establish and threaded connection in pressure strip and balance nut in proper order, balance bolt lower extreme butt in the base upper end.
A full-automatic self-adaptive cycloid wheel positioning method adopts a full-automatic self-adaptive cycloid wheel positioning tool and comprises the following steps,
respectively controlling a plurality of driving devices to drive corresponding positioning blocks to move along the circumferential radial direction and apply pressure to the cycloidal gears in the circumference so as to clamp the cycloidal gears together;
acquiring a real-time distance value between each distance sensor and the cycloid wheel in the moving process of each positioning block;
acquiring a real-time pressure value detected by each force sensor in the moving process of each positioning block;
when the real-time distance value detected by each distance sensor is equal to the preset distance value, each positioning block is controlled to increase the pressure on the cycloidal gear until the real-time pressure value detected by each force sensor is equal to the preset pressure value.
Furthermore, when the positioning block applies pressure to the to-be-positioned cycloidal gear in the circumference, the profiling teeth at the front end of the positioning block are embedded into the tooth profile of the cycloidal gear.
Furthermore, the end face of the cycloidal gear is pressed by the pressing plate, the spring between the pressing plate and the base is compressed by adjusting the connecting bolt to realize that the height of the pressing plate is self-adaptive to cycloidal gears with different thicknesses, and the balance of the two ends of the pressing plate is realized by adjusting the height of the balance nut on the balance bolt.
Compared with the prior art, the utility model discloses following beneficial effect has:
the positioning blocks arranged outside the cycloid wheel in a surrounding mode respectively move along the circumferential radial direction and apply pressure to the cycloid wheel to be positioned in the circumference, and the cycloid wheel can be pressed together from multiple directions. When the real-time distance value detected by each distance sensor is equal to the preset distance value, the cycloid wheel is preliminarily compressed, and preliminary positioning is completed. Then the pressure of each locating piece increase to the cycloid wheel is equalling in the preset pressure value to the real-time pressure value that each force transducer detected, further compresses tightly the cycloid wheel firmly from a plurality of directions to accomplish the full-automatic self-adaptation cycloid wheel positioning process of cycloid wheel. In the further pressing process of the cycloid wheel, the position of the cycloid wheel is not changed, and the initial positioning precision of the cycloid wheel is not influenced. The positioning process of the cycloid wheel is implemented by the positioning tool, the cycloid wheel is not required to be pre-drilled and positioned, the overall appearance of the cycloid wheel is not damaged, rapid automatic and reliable centering can be realized through preliminary positioning and further pressing, and high-precision processing is facilitated.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a base according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a positioning block according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a pressing plate according to an embodiment of the present invention.
In the figure:
1-a base; 101-connecting screw holes; 102-a first mounting screw hole; 103-a second mounting screw hole; 104-a groove; 105-T-shaped groove; 2-a compacting plate; 201-balance screw holes; 202-a through hole; 3-a gasket; 4-connecting bolts; 5-a spring; 6-a cycloid gear; 7-a balance bolt; 8-a balance nut; 9-positioning blocks; 901-profile teeth; 902-a force sensor; 903-T type slide block; 904-screw bolt hole; 10-a screw motor; 11-a motor base; 1101-a first mounting bolt; 1102-a second mounting bolt; 12-a distance sensor; 1201-third mounting bolt.
Detailed Description
The present invention is described in further detail below.
A full-automatic self-adaptive cycloid wheel positioning tool comprises a control device, a base 1 and a plurality of positioning blocks 9 arranged on the same circumference of the base 1;
a plurality of positioning blocks 9 are uniformly arranged around the circle center;
each positioning block 9 is correspondingly provided with a driving device, a distance sensor 12 and a force sensor 902;
the plurality of driving devices are used for driving each corresponding positioning block 9 to move along the circumferential radial direction and applying pressure to the cycloidal gears 6 in the circumference so as to clamp the cycloidal gears 6 together;
the initial distance from each distance sensor 12 to the circle center of the circumference is equal, and the distance sensors 12 are used for acquiring real-time distance values between each corresponding distance sensor 12 and the cycloid wheel 6 in the moving process of each positioning block 9;
each force sensor 902 is used for detecting a real-time pressure value applied to the cycloid wheel 6 by the corresponding positioning block 9;
the control device is respectively connected with the force sensor 902 and the distance sensor 12, and is used for controlling each positioning block 9 to increase the pressure on the cycloid wheel 6 to the value of the real-time pressure detected by each force sensor 902 which is equal to the preset pressure value when the real-time distance value detected by each distance sensor 12 is equal to the preset distance value.
The preset distance value and the preset pressure value are both standard values for positioning reference, wherein the preset distance value is the distance between the cycloid wheel 6 and the distance sensor 12 when the cycloid wheel 6 is in a standard positioning state; the preset pressure value is the contact pressure value between the cycloid wheel 6 and the positioning block 9 when the cycloid wheel 6 is in a standard positioning state.
Preferably, the base 1 is a symmetrical structure, the main body of which is a disc, and the middle part of the disc is a hollow structure. The number of positioning blocks 9, drive devices, distance sensors 12 and force sensors 902 is 3. The driving device is a screw rod motor 10, a second mounting bolt 1102 is arranged on the screw rod motor 10, and the screw rod motor 10 is connected to the positioning block 9 through a screw rod screw hole 904.
The motor base 11 of the lead screw motor 10 is mounted on the base 1 through a first mounting screw hole 102 and a first mounting bolt 1101.
The distance sensor 12 is mounted on the base 1 through the second mounting screw hole 103 and the third mounting bolt 1201.
Each positioning block 9 is provided with a corresponding screw motor 10 for driving, so that the positioning tool for the cycloid wheel 6 can adapt to the machining of cycloid wheels 6 with different sizes.
In the prior art, the three-jaw chuck is often used for clamping the tooth top of the cycloidal gear 6 to fix the cycloidal gear 6, although automatic centering can be realized, the three-jaw chuck is in line contact with the tooth top of the cycloidal gear 6, the contact area is small, the stress is large, the three jaws and the cycloidal gear are easy to wear, after the three-jaw chuck is used for a long time, the three jaws can slowly deviate from the original chuck center, the profile curve of the cycloidal gear is changed, and the form and position tolerance of a processed part is increased.
The front end of the positioning block 9 is provided with the profile-matched profile teeth 901 of the cycloidal gear 6, the profile teeth 901 of the cycloidal gear 6 are embedded into the profile teeth 901 of the positioning block 9, the contact area between the positioning block 9 and the cycloidal gear 6 to be machined is increased, abrasion is reduced, more accurate positioning is realized, and the positioning reliability is improved.
When the real-time distance values measured by the three distance sensors 12 are equal to the preset distance values, the cycloid wheel 6 is preliminarily pressed, and preliminary positioning is completed.
The locating piece 9 is equipped with force sensor 902, can real-time detection real-time pressure value between them after locating piece 9 and the contact of cycloid wheel 6, and after the preliminary location is accomplished to cycloid wheel 6, 3 locating pieces 9 of controlling means control continue to increase pressure on the basis of preliminary tight cycloid wheel 6 of clamp. When the real-time pressure values detected by the 3 force sensors 902 all reach the preset pressure values, the cycloid wheel 6 is firmly pressed, so that the whole positioning process is completed.
Three connecting screw holes 101 and three grooves are respectively arranged on the base 1. Preferably, the groove is a T-shaped groove 105. Three connecting screw holes 101 are uniformly distributed on the same circumference of the base 1 at intervals of 120 degrees, and three T-shaped grooves 105 are uniformly distributed on the same circumference at intervals of 120 degrees and point to the center of the circumference; the connecting screw holes 101 and the T-shaped grooves 105 are uniformly distributed at intervals. The diameter of the circumference is larger than that of the cycloid wheel 6, so that the cycloid wheel 6 with different sizes can be adapted.
The pressing plate 2 is provided with a through hole 202, and a connecting bolt 4 penetrates through the gasket 3, the pressing plate 2 and the spring 5 through the through hole 202 to be in threaded connection with the connecting screw hole 101 of the base 1, so that the pressing plate 2 and the base 1 are detachably connected; through holes 202 on the three pressure strips 2 correspond to the three connecting screw holes 101 one by one and are connected with the base 1 through connecting bolts 4, so that the cycloidal gear 6 is ensured to be stressed uniformly.
The cycloid wheel 6 to be processed is placed on a boss of the base 1 and is pressed tightly through the three pressing plates 2. The T-shaped slider 903 on the positioning block 9 is matched with the T-shaped groove 105 of the base 1, and the positioning block 9 can move along the direction of the T-shaped groove 105 under the driving of the driving device screw motor 10. In the positioning process of the cycloid wheel 6, the cycloid wheel 6 is subjected to pressure from multiple directions, and the tendency of rotation is easily generated; in the machining process, the force applied to the cycloid wheel 6 by the machining tool is transmitted to the positioning block 9, so that the cycloid wheel is easy to rotate. The embodiment of the utility model provides a after locating piece 9 compresses tightly cycloid wheel 6, through the cooperation of T type groove 105 with the 9 sliders of locating piece, strengthened the rotational resistance of locating piece 9, not only can prevent that locating piece 9 from producing the circumference skew, and then avoid cycloid wheel 6 to be compressed tightly the back continuation rotatory, guarantee cycloid wheel 6's positioning accuracy, still play for locating piece 9 along circumference radial sliding's guide effect.
Specifically, a groove 104 is formed in the position, corresponding to the T-shaped groove 105, of the boss of the base 1, so that interference between the positioning block 9 and the boss of the base 1 is avoided.
Among the prior art, some devices adopt the compact heap to compress tightly cycloid wheel 6, but after 6 processing of cycloid wheel are accomplished, the compact heap needs all to dismantle to get off and just can carry out 6 changes of cycloid wheel. Meanwhile, the positioning block 9 needs to be manually adjusted, operation is inconvenient, working efficiency is low, and centering accuracy is difficult to guarantee by secondary clamping.
In the embodiment, the upward force of the spring 5 on the compression plate 2 is balanced with the downward force of the connecting bolt 4 on the compression plate 2, so that the height self-adaptation of the compression plate 2 is realized; the height of the pressing plate 2 can be adjusted by screwing or unscrewing the connecting bolt 4, the state of the pressing plate 2 is correspondingly changed while the state of the connecting bolt 4 is not required to be adjusted, the operation can be carried out by one hand, and the simplicity of operation is greatly improved. Meanwhile, the balance bolt 7 penetrates through the balance nut 8 and is connected with the pressing plate 2 through the balance screw hole 201, the height of the balance nut 8 is adjustable, the two ends of the pressing plate 2 are balanced by adjusting the height of the balance nut 8, the reliability of the pressing device is guaranteed, and the operation is convenient. The positioning block 9 is driven by the screw rod motor 10 to realize automatic loading, manual adjustment is not needed, the working efficiency is high, and the centering precision of the positioning block is easily ensured by secondary clamping.
The utility model discloses a concrete use flow does:
s1, placing a cycloid wheel 6 to be processed on a base 1, and if two cycloid wheels 6 are simultaneously processed, sequentially overlapping the two cycloid wheels 6 to be processed and then inserting a positioning pin for positioning;
s2, rotating the cycloidal gear 6 to be machined by a proper angle according to the position of the positioning block 9 and placing the cycloidal gear on the base 1, and ensuring that the three copying teeth 901 can be embedded into the tooth profile of the cycloidal gear 6;
s3, the positioning block 9 automatically adapts to the cycloid wheel 6 under the driving of the screw motor 10, the force sensor 902 and the distance sensor 12 provide feedback in the process, the movement of the positioning block 9 is correspondingly controlled, and the primary positioning and further pressing processes are sequentially completed;
s4, rotating the pressing plate 2 to point to the center of the cycloid wheel 6, screwing the connecting bolt 4, and adjusting the balance nut 8 to enable the pressing plate 2 to return to a balanced state if the two ends of the pressing plate 2 are unbalanced;
s5, starting grinding equipment to finish the fine grinding process of the required hole;
s6, after the machining is finished, the positioning block 9 automatically moves to a set position, the connecting bolt 4 is unscrewed, and the pressing plate 2 is rotated to be free from interference with the cycloid wheel 6;
s7, taking down the cycloidal gear 6 after hole grinding, and cleaning the tool.
Wherein, the processes of completing the initial positioning and further compressing in S3 are exemplified as follows:
it is assumed that the 3 distance sensors 12 are a first distance sensor, a second distance sensor and a third distance sensor, respectively. Corresponding to the first positioning block and the first force sensor, the second positioning block and the second force sensor, and the third positioning block and the third force sensor.
Before positioning, the distance between the to-be-positioned cycloid wheel 6 and the first distance sensor is the shortest and is smaller than a preset distance value, and the distances between the to-be-positioned cycloid wheel 6 and the second distance sensor and the distance between the to-be-positioned cycloid wheel 6 and the third distance sensor are larger than the preset distance value.
The control device firstly controls the first positioning block to push the cycloid wheel 6 forwards, and the second positioning block and the third positioning block are kept still. When the real-time distance value detected by the first distance sensor is equal to the preset distance value, the first positioning block stops moving. At this time, the real-time distance values of the second and third distance sensors should be less than or equal to the preset distance value.
If the control device obtains that the real-time distance values of the second distance sensor and the third distance sensor are smaller than the preset distance value, the control device controls the second positioning block and the third positioning block to be pushed out forwards until the real-time distance values of the second distance sensor and the third distance sensor are equal to the preset distance value, at the moment, the cycloid wheel 6 is preliminarily pressed, and preliminary positioning is completed. Then, the three force sensors 902 start to detect the real-time pressure values between the positioning blocks 9 and the cycloid wheel 6 respectively, the positioning blocks 9 with small real-time pressure values continue to be pushed forward to increase the pressure, the positioning blocks 9 with large real-time pressure values are temporarily kept, until the real-time pressure values of the three force sensors 902 are equal, the three positioning blocks 9 are pushed forward simultaneously, the real-time pressure values of the cycloid wheel 6 are increased to be equal to the preset pressure values, and the whole positioning process is completed.
If the control device obtains that the real-time distance values of the second distance sensor and the third distance sensor are equal to the preset distance values, and the second positioning block and the third positioning block are not in contact with the cycloid wheel 6, namely the real-time pressure values of the second force sensor and the third force sensor are 0, the control device controls the second positioning block and the third positioning block to be pushed out forwards until the real-time distance values of the second distance sensor and the third distance sensor are equal to the preset distance values, and preliminary positioning is completed. Then, as described above, when the three force sensors 902 are adjusted to have the same real-time pressure values, the three positioning blocks 9 are simultaneously pushed forward, so as to increase the real-time pressure value of the cycloid gear 6 to be equal to the preset pressure value, thereby completing the whole positioning process.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a full-automatic self-adaptation cycloid wheel location frock which characterized in that: comprises a control device, a base and a plurality of positioning blocks arranged on the same circumference of the base;
a plurality of positioning blocks are uniformly arranged around the circle center of the circumference;
each positioning block is correspondingly provided with a driving device, a distance sensor and a force sensor;
the driving devices are used for driving each corresponding positioning block to move along the circumference in the radial direction and applying pressure to the cycloidal gears in the circumference so as to clamp the cycloidal gears together;
the distance between each distance sensor and the circle center of the circumference is equal, and the distance sensors are used for acquiring real-time distance values between each corresponding distance sensor and the cycloid wheel in the moving process of each positioning block;
each force sensor is used for detecting a real-time pressure value applied to the cycloid wheel by the corresponding positioning block;
the control device is respectively connected with the driving device, the force sensors and the distance sensors, and is used for controlling each driving device to drive the pressure of the corresponding positioning block to the cycloid wheel to be increased to a real-time pressure value detected by each force sensor to be equal to a preset pressure value when the real-time distance value detected by each distance sensor is equal to the preset distance value.
2. The full-automatic self-adaptive cycloid wheel positioning tool according to claim 1 is characterized in that: still include the anti-migration device, the anti-migration device is connected respectively in base and locating piece for prevent that the locating piece from producing the circumference skew.
3. The full-automatic self-adaptive cycloid wheel positioning tool according to claim 2 is characterized in that: the anti-deviation device comprises a groove arranged on the base and a sliding block arranged on the positioning block, the groove extends from the positioning block to the direction of the circle center of the circumference, the sliding block is matched with the groove, and the sliding block is connected to the groove in a sliding mode.
4. The full-automatic self-adaptive cycloid wheel positioning tool as claimed in claim 1, is characterized in that: the front end of the positioning block is provided with a profiling tooth which is matched with the tooth profile of the cycloidal gear.
5. The full-automatic self-adaptive cycloid wheel positioning tool according to claim 1 is characterized in that: detachably is connected with closing device on the base, and closing device is used for compressing tightly the cycloid wheel terminal surface.
6. The full-automatic self-adaptive cycloid wheel positioning tool according to claim 5, characterized in that: the pressing device comprises a connecting bolt, a spring and a pressing plate, two ends of the spring are respectively abutted to the base and the pressing plate, the connecting bolt sequentially penetrates through the pressing plate, the spring and the base, and the connecting bolt is in threaded connection with the base.
7. The full-automatic self-adaptive cycloid wheel positioning tool according to claim 6, characterized in that: be equipped with balance bolt and balance nut between pressure strip and the base, balance nut upper end butt in pressure strip lower extreme, balance bolt wears to establish and threaded connection in pressure strip and balance nut in proper order, balance bolt lower extreme butt in base upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024903.2U CN218533071U (en) | 2022-11-15 | 2022-11-15 | Full-automatic self-adaptation cycloid wheel location frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024903.2U CN218533071U (en) | 2022-11-15 | 2022-11-15 | Full-automatic self-adaptation cycloid wheel location frock |
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| Publication Number | Publication Date |
|---|---|
| CN218533071U true CN218533071U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223024903.2U Active CN218533071U (en) | 2022-11-15 | 2022-11-15 | Full-automatic self-adaptation cycloid wheel location frock |
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| Country | Link |
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| CN (1) | CN218533071U (en) |
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- 2022-11-15 CN CN202223024903.2U patent/CN218533071U/en active Active
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