CN214559301U - Multi-station tooth-making clamp of cutter for sugar industry - Google Patents
Multi-station tooth-making clamp of cutter for sugar industry Download PDFInfo
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- CN214559301U CN214559301U CN202120629701.7U CN202120629701U CN214559301U CN 214559301 U CN214559301 U CN 214559301U CN 202120629701 U CN202120629701 U CN 202120629701U CN 214559301 U CN214559301 U CN 214559301U
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Abstract
The utility model provides a multistation system tooth anchor clamps of cutter for sugaring trade, it includes mouse tooth formula graduated disk, crosses cab apron, work piece locating plate, work piece backing plate, auto-lock clamping mechanism, clamp plate canceling release mechanical system, work piece length direction location clamp and unclamp the mechanism. The mouse tooth type index plate can ensure the accuracy in indexing of any integer degree, the transition plate can convert the planar oil circuit of the rotary table to the outer circle of the self-locking clamping mechanism, the total force increasing ratio of the self-locking clamping mechanism is 7:1, the self-locking clamping mechanism is formed by combining a set of self-locking force increasing mechanisms and a set of lever force increasing mechanisms respectively, and the pressure plate reset mechanism is a set of extension spring reset mechanism shared by 3-station pressure plates. The utility model relates to a multistation system tooth scheme of cutter for sugaring trade adopts rotatory 3 stations to replace the scheme of 3 stations of parallel array, has greatly reduced the occupation of land space of equipment, has reduced equipment purchasing cost.
Description
Technical Field
The utility model relates to a multistation system tooth anchor clamps and method of cutter for sugaring trade belongs to cutter clamping processing technology field.
Background
China is the main world with great sugar production and consumption. Sugarcane and beet are 2 most widely used raw materials in the sugar industry, and the production areas of cane sugar mainly comprise Guangxi, Yunnan and Guangdong, while the production areas of beet sugar mainly comprise Xinjiang, Heilongjiang and inner Mongolia. At present, the integral technology and equipment level of the sugar industry in China are relatively laggard, the production cost is high, the product quality is unstable, the comprehensive utilization efficiency is low, and the pollution is serious.
In the process of preparing sugar by using beet, a special slicing tool is needed to slice the beet into thin and uniform slices so as to facilitate the precipitation of cane sugar. The special blade for processing the beet is formed by punching and bending a steel plate with the thickness of 7mm, and then teeth are processed, wherein the length of the special blade is 200mm, and the width of the special blade is 87 mm; since the blade is thin, its durability is slightly insufficient, and thus the demand for the blade is very large in each sugar refinery. The most important process before the blade is formed is tooth manufacturing, and how to process the cutter teeth with the thickness less than 1.5mm on the front and back surfaces of a thin steel plate with the thickness of only 7mm severely limits the production efficiency of the blade.
At present, the blade used for sugar production by beet at home is basically imported, the process for producing the blade at home is relatively mature, wherein the tooth production process is completed by a rack gear milling machine tool, the time for processing the tooth part of one surface of the blade by a common rack gear milling machine tool is 3min, and the processing beat of the machine tool with better performance can be improved to 1.5 min. However, for a blade with a length of only 200mm, the whole width of the rack gear milling machine is about 6000mm, and the occupied area is very large. A YK8532A short-rack gear milling machine tool is developed by Mitsui Yichang machine science and technology Limited liability company, and domestic blade dealers consider the machine tool to perform blade gear making.
The clamp used for manufacturing the teeth of the blade is a single-station clamp in foreign countries, the principle is that the blade is clamped by a lever mechanism, and the other end of the lever directly pushes up one end of the lever by a hydraulic cylinder. The clamp has the following defects: because hydraulic oil is compressible, the phenomenon of continuous vibration can exist after the oil cylinder is stressed, the feed speed of the machine tool is influenced, and the machining efficiency is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a multi-station tooth-making clamp of a cutter for the sugar industry, which is arranged on a YK8532A short rack gear milling machine tool in a matching way, and adopts a rotary workbench, and 3 sets of clamps are uniformly distributed in the circumferential direction; moreover, a self-locking structure is adopted for the lever mechanism, so that the phenomenon that the workpiece vibrates due to the compression of hydraulic oil is avoided; a plurality of stations can be distributed under the condition of smaller occupied area of the machine tool, so that the tooth manufacturing efficiency is improved, and the equipment purchasing cost is reduced.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the multi-station tooth-making clamp of the cutter for the sugar industry comprises an index plate, wherein a transition plate is fixedly arranged at the top of the index plate, a plurality of stations are uniformly distributed at the top of the transition plate along the circumferential direction, and each station is correspondingly provided with a set of clamps;
each set of clamp comprises a set of force-increasing mechanism with self-locking function, and the force-increasing mechanism comprises a workpiece positioning plate, a workpiece base plate, a pressing plate, a base plate, an oil cylinder and a sliding block; two oil pressure supporting cylinders are respectively arranged on the workpiece positioning plates; each oil pressure supporting cylinder is provided with a contact bolt; the left and right directions of the workpiece base plate are respectively provided with a positioning plate and a guide block; the guide block is provided with a push rod, a compression spring and a spring seesaw; the multiple clamps share one set of reset mechanism, and the reset mechanism comprises an extension spring, a spring adjusting screw rod and a spring limiting plate.
The indexing disc is a mouse tooth type indexing disc, the minimum indexing precision is 1 degree, and the repetition precision is +/-1 second; the index plate is controlled by a servo motor and can index at any integer degree; the indexing disc can immediately supply oil to lock the table top after indexing in place, the locking torque can reach 10000N.m, the overturning moment of the table top is large, and the table top vibration caused by large cutting force is avoided;
the transition plate is fixedly arranged at the top of the dividing plate through a T-shaped nut and an inner hexagonal cylindrical head screw; the transition plate is also provided with a plurality of oil holes so as to divide oil on the table surface of the dividing disc to the outer circle of the transition plate.
The transition plate not only transfers four paths of hydraulic oil at the center of the table top of the rotary table to the excircle of the transition plate, but also shunts the hydraulic oil to each station from the excircle; three stations are arranged along the circumferential direction.
The clamp is formed by combining a force increasing mechanism with self-locking and a lever force increasing mechanism, and the force increasing ratio can reach 7: 1.
The multiple sets of pressing plates share one set of resetting mechanism.
The inclined plane of the pressing plate is a 75-degree oblique angle, and the contact part of the sliding block and the inclined plane of the pressing plate is of an arc structure; when the oil cylinder supplies oil, the sliding block is pushed to move to the central position, and the arc surface of the sliding block pushes the pressing plate to rise, so that the workpiece is clamped.
The pressing plate is provided with a step close to the rotating center, so that the spring limiting plate cannot be separated from any pressing plate no matter how the spring limiting plate moves, and the resetting effectiveness of the pressing plate is guaranteed.
The backing plate is installed at the bottom of hydro-cylinder and slider, for the quenching part to the backing plate surface wearing and tearing back is led to in the slider slip process, directly changes the backing plate.
The center of the index plate is provided with a rotary oil distribution mechanism, an oil way on the hydraulic station is communicated with the table top of the index plate, so that the positions, needing oil supply, on the clamp can be directly connected to the center of the table top of the index plate, and the situation that an oil supply pipeline cannot be distributed when the index plate rotates is avoided.
The utility model discloses there is following beneficial effect:
1. by adopting the mouse tooth type dividing plate with the structure, the inaccurate dividing precision of a common rotary table due to the existence of a gear or worm and gear meshing reverse clearance can be avoided, and a lubricating oil circuit can be distributed on the table surface of the rotary table, so that the connection between a clamp and the rotary table is facilitated; meanwhile, the locking torque of the rotary table is large, so that the phenomenon that the clamp vibrates and even turns over due to overlarge cutting force can be avoided.
2. Adopt the utility model provides a 3 station structures can go out 3 stations in the overall arrangement on the mesa that the diameter is only 670mm, and it is big to have avoided foreign lathe to adopt the large stroke workstation to come the overall arrangement multistation and the lathe area who causes, and equipment purchasing cost is high.
3. The clamping mechanism in the utility model has self-locking function and 7:1 force increasing, and can obtain larger clamping force under the condition of smaller thrust; meanwhile, due to the self-locking function, the influence on the processing efficiency caused by the vibration of the pressing plate due to the fact that the oil cylinder directly presses the pressing plate is avoided.
4. Adopt the utility model provides a clamp plate canceling release mechanical system has arranged 1 set of canceling release mechanical system in minimum space and has made 3 sets of clamp plates sharing, has both avoided adopting cylinder or hydro-cylinder to reset the numerous layouts that are difficult to of pipeline that lead to, very big reduction purchasing cost again. And in the inflation state, the air bag is inflated when the section to be supported arrives until the air bag is in contact with the top end of the tunnel and is filled with the uneven surface of the upper outer wall of the tunnel, so that the phenomenon that the pressure at a certain position of the device is overlarge due to uneven stress when rock burst occurs can be prevented.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a main sectional view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2 according to the present invention.
Fig. 4 is a three-dimensional view of the present invention.
Fig. 5 is a three-dimensional view of the tool to be processed according to the present invention.
In the figure: the device comprises a workpiece 1, a pressure plate 2, a spring limiting plate 3, a spring adjusting screw rod 4, an extension spring 5, a transition plate 6, an index plate 7, a sliding block 8, a backing plate 9, an oil cylinder 10, a workpiece backing plate 11, a workpiece positioning plate 12, an oil pressure supporting cylinder 13, a contact bolt 14, a spring seesaw 15, a compression spring 16, a guide block 17, a push rod 18 and a positioning plate 19.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, a multi-station tooth-making clamp of a cutter for the sugar industry comprises an index plate 7, wherein a transition plate 6 is fixedly installed at the top of the index plate 7, a plurality of stations are uniformly distributed at the top of the transition plate 6 along the circumferential direction, and each station is correspondingly provided with a set of clamps; each set of clamp comprises a set of force-increasing mechanism with self-locking function, and the force-increasing mechanism comprises a workpiece positioning plate 12, a workpiece base plate 11, a pressing plate 2, a base plate 9, an oil cylinder 10 and a sliding block 8; two oil pressure supporting cylinders 13 are respectively arranged on the workpiece positioning plate 12; each oil pressure supporting cylinder 13 is provided with a contact bolt 14; the workpiece backing plate 11 is provided with a positioning plate 19 and a guide block 17 in the left and right directions respectively; the guide block 17 is provided with a push rod 18, a compression spring 16 and a spring seesaw 15; the multiple clamps share one set of reset mechanism, and the reset mechanism comprises an extension spring 5, a spring adjusting screw rod 4 and a spring limiting plate 3. By adopting the clamp with the structure, the indexing disc ensures the accuracy of 3-station indexing; the transition plate is used as a carrier of a working position of the clamp 3, and an oil path of the table top of the rotary table is converted to the outer circle of the transition plate; the workpiece positioning plate has a positioning effect on the width direction of the workpiece, and meanwhile, the oil pressure supporting cylinder is conveniently distributed; the workpiece backing plate and the self-locking clamping mechanism are used for carrying out auxiliary clamping on the sheet type blade; the pressure plate resetting mechanism adopts an extension spring to loosen the pressure plate so as to facilitate the taking out of the workpiece; the workpiece length direction positioning, clamping and loosening mechanism clamps the workpiece before the workpiece is clamped by the pressing plate, so that the workpiece is prevented from loosening when the rotary table rotates.
Furthermore, the index plate 7 adopts a mouse tooth type index plate, the minimum index precision is 1 degree, and the repetition precision is +/-1 second; the indexing disc is controlled by a servo motor, can be indexed at any integer degree, has higher indexing precision than a rotary table with a conventional worm and gear structure, but cannot be indexed at non-integer degrees. The indexing disc can immediately supply oil to the locking table board after indexing in place, the locking torque can reach 10000N.m, the overturning moment of the table board is large, and the table board vibration caused by large cutting force is avoided.
Further, the transition plate 6 is fixedly arranged at the top of the dividing plate 7 through a T-shaped nut and an inner hexagonal cylindrical head screw; the transition plate 6 is also provided with a plurality of oil holes so as to divide the oil on the table surface of the dividing disc 7 to the excircle of the transition plate.
Furthermore, the workpiece positioning plate is provided with an oil pressure supporting cylinder for supporting the thin blade in an auxiliary manner, and also is used for positioning the workpiece in the width direction of the workpiece. When the workpiece is placed, the workpiece is manually attached to the positioning surface of the workpiece positioning block, and the workpiece is clamped by the spring mechanism on the clamp after the workpiece is placed in place, so that the workpiece cannot move when the rotary table rotates.
Furthermore, the workpiece base plate is matched with the pressing plate to tightly press the workpiece, and meanwhile, a positioning block and a spring clamping mechanism in the length direction of the workpiece are arranged in the length direction of the workpiece base plate.
Furthermore, the transition plate 6 not only transfers four paths of hydraulic oil at the central position of the table top of the turntable to the excircle of the transition plate, but also branches the hydraulic oil to each station from the excircle; three stations are arranged along the circumferential direction.
Furthermore, the clamp is formed by combining a force increasing mechanism with self-locking and a lever force increasing mechanism, and the force increasing ratio can reach 7: 1.
Furthermore, a plurality of sets of pressure plates 2 share one set of reset mechanism.
Furthermore, the inclined plane of the pressure plate 2 is an inclined angle of 75 degrees, and the contact part of the slide block 8 and the inclined plane of the pressure plate 2 is of an arc structure; when the oil cylinder supplies oil, the sliding block is pushed to move to the central position, and the arc surface of the sliding block pushes the pressing plate to rise, so that the workpiece is clamped. Because the included angle formed between the pressing plate and the sliding block belongs to a self-locking angle, when the pressing plate is stressed to rebound, the sliding block cannot move due to self-locking, and therefore cutting rigidity is guaranteed. The pressure plate inclined plane and the slide block arc surface form a force increasing mechanism, and the force increasing ratio is 3.74. The pressure plate is of a lever structure, and the force increasing ratio of the pressure plate is close to 2. Therefore, the force increasing mechanism has a self-locking function and also has force increasing close to 7:1, and can obtain larger workpiece clamping force by using small thrust of the oil cylinder.
Furthermore, the pressing plate 2 is close to the rotating center, and a step is designed, so that the spring limiting plate 3 is guaranteed not to be separated from any pressing plate no matter how the spring limiting plate moves, and the resetting effectiveness of the pressing plate is guaranteed.
Further, the backing plate 9 is installed at the bottom of the oil cylinder 10 and the sliding block 8 and is a quenching part, so that the backing plate can be directly replaced after the surface of the backing plate is abraded in the sliding process of the sliding block.
Furthermore, the center of the index plate 7 is provided with a rotary oil distribution mechanism, and an oil path on the hydraulic station is communicated with the table top of the index plate 7, so that the positions of the clamp needing oil supply can be directly connected to the center of the table top of the index plate 7, and the situation that an oil supply pipeline cannot be distributed when the index plate 7 rotates is avoided.
Furthermore, the spring limiting plate, the spring adjusting screw and the extension spring are pressure plate resetting mechanisms. When the oil cylinder retracts, the pressing plate does not necessarily loosen the workpiece, so a mechanism is required to be added to pull the pressing plate downwards to loosen the workpiece. Due to the limitation of size, executing elements such as air cylinders or oil cylinders cannot be added, and a plurality of pipelines need to be added even if the executing elements are added, so that the design difficulty is increased. By adopting the resetting mechanism, the pressing plate can release the workpiece when the oil cylinder retracts. The spring limiting plate and the spring adjusting screw can adjust the tension of the extension spring.
Furthermore, the positioning plate, the push rod, the compression spring, the guide block and the spring seesaw are anti-rotation mechanisms before the workpiece is clamped. The locating plate is used for locating the length direction of the workpiece, and the compression spring provides power for the push rod to tightly push the workpiece. The spring seesaw is a lever labor-saving mechanism, and a gap is formed between the push rod and a workpiece by manually pulling the far end of the spring seesaw, so that the workpiece can be conveniently placed in the gap.
Example 2:
the method for clamping the workpiece by adopting the multi-station tooth-making clamp of the cutter for the sugar industry comprises the following steps:
step 1: in the initial state, the oil cylinder 10 is in a retraction state, and the pressing plate 2 is in a release state; firstly, manually operating the index plate 7 to rotate to an upper blanking position, then, manually pulling the spring seesaw 15 by an operator at the right side to enable the push rod 18 to retract, and placing the workpiece 1 below the pressure plate 2 by the left hand; then, the left hand and the right hand are simultaneously released, and then the workpiece 1 is held and pulled in the direction away from the rotation center, so that the workpiece 1 is positioned in the width direction; after the workpiece 1 is loosened, the workpiece 1 is fixed at a specific position and cannot move due to the clamping action of the compression spring in the length direction;
step 2: inching a rotary button of a rotary table on an operation panel of an electrical control cabinet of the machine tool, automatically rotating the index plate 7 by 120 degrees to another station, and feeding on the station 2 by using the method in the step 1; feeding at the 3 rd station in the same way;
and step 3: after the feeding is finished, the oil cylinders 10 of 3 stations are connected in parallel, and meanwhile, oil is fed to push the sliding block 8 to move towards the direction of the rotating center, and the sliding block 8 pushes the pressing plate 2 to enable the pressing plate to rise close to the center end; the pressing plate 3 is a lever mechanism and rotates around the center to clamp the workpiece 1;
and 4, step 4: after the workpiece is clamped, 6 oil pressure supporting cylinders 13 in 3 stations start to ascend, and a contact bolt 14 is pushed to support the lower end face of the workpiece 1;
and 5: the machine tool starts to carry out circular machining, the program enables the index plate 7 to rotate to the 1 st station, the index plate rotates 120 degrees to the 2 nd station after machining is finished, and then the index plate rotates 120 degrees to the 3 rd station; after all stations finish gear milling, a program controls the rotary table to rotate, and the station 1 is rotated to a position convenient for loading and unloading;
step 6: the oil pressure supporting cylinder 13 descends, the oil cylinder 10 feeds oil and retracts, the tension spring 5 pulls the pressure plate 2 back, the workpiece 1 is loosened, and due to the fact that the compression spring 16 has small thrust, the workpiece 1 can be directly held by two hands to be taken down, and meanwhile, the workpiece to be machined is installed at the 1 st station;
and 7: and (5) replacing the workpieces processed in the 2 nd and 3 rd stations with the workpieces to be processed in the same way as the step 6.
Claims (9)
1. The utility model provides a multistation system tooth anchor clamps of cutter for sugaring trade which characterized in that: the device comprises an index plate (7), wherein a transition plate (6) is fixedly arranged at the top of the index plate (7), a plurality of stations are uniformly distributed at the top of the transition plate (6) along the circumferential direction, and each station is correspondingly provided with a set of clamps;
each set of clamp comprises a set of force-increasing mechanism with self-locking, and the force-increasing mechanism comprises a workpiece positioning plate (12), a workpiece base plate (11), a pressing plate (2), a base plate (9), an oil cylinder (10) and a sliding block (8); two oil pressure supporting cylinders (13) are respectively arranged on the workpiece positioning plate (12); each oil pressure supporting cylinder (13) is provided with a contact bolt (14); the left and right directions of the workpiece backing plate (11) are respectively provided with a positioning plate (19) and a guide block (17); a push rod (18), a compression spring (16) and a spring seesaw (15) are arranged on the guide block (17); the multiple clamps share one set of reset mechanism, and the reset mechanism comprises an extension spring (5), a spring adjusting screw rod (4) and a spring limiting plate (3).
2. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the index plate (7) adopts a mouse tooth type index plate, the minimum index precision is 1 degree, and the repetition precision is +/-1 second; the index plate is controlled by a servo motor and can index at any integer degree; the indexing disc can immediately supply oil to lock the table top after indexing in place, the locking torque can reach 10000N.m, the overturning moment of the table top is large, and the table top vibration caused by large cutting force is avoided;
the transition plate (6) is fixedly arranged at the top of the dividing plate (7) through a T-shaped nut and an inner hexagonal cylindrical head screw; the transition plate (6) is also provided with a plurality of oil holes so as to divide the oil on the table surface of the dividing disc (7) to the outer circle of the transition plate.
3. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1 or 2, characterized in that: the transition plate (6) not only transfers four paths of hydraulic oil at the center of the table top of the rotary table to the excircle of the transition plate, but also branches the hydraulic oil to each station from the excircle; three stations are arranged along the circumferential direction.
4. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the clamp is formed by combining a force increasing mechanism with self-locking and a lever force increasing mechanism, and the force increasing ratio can reach 7: 1.
5. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the multiple sets of pressing plates (2) share one set of resetting mechanism.
6. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the inclined plane of the pressing plate (2) is a 75-degree oblique angle, and the contact part of the sliding block (8) and the inclined plane of the pressing plate (2) is of an arc structure; when the oil cylinder supplies oil, the sliding block is pushed to move to the central position, and the arc surface of the sliding block pushes the pressing plate to rise, so that the workpiece is clamped.
7. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the pressing plate (2) is close to the rotating center, a step is designed, the spring limiting plate (3) is guaranteed not to be separated from any pressing plate no matter how the spring limiting plate moves, and the resetting effectiveness of the pressing plate is guaranteed.
8. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the backing plate (9) is arranged at the bottom of the oil cylinder (10) and the sliding block (8) and is a quenching part, so that the backing plate can be directly replaced after the surface of the backing plate is abraded in the sliding process of the sliding block.
9. The multi-station tooth-making clamp of the cutter for the sugar industry according to claim 1, characterized in that: the center of the index plate (7) is provided with a rotary oil distribution mechanism, an oil way on the hydraulic station is communicated with the table top of the index plate (7), so that the positions of the clamp needing oil supply can be directly connected to the center of the table top of the index plate (7), and the phenomenon that an oil supply pipeline cannot be distributed when the index plate (7) rotates is avoided.
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CN202120629701.7U CN214559301U (en) | 2021-03-29 | 2021-03-29 | Multi-station tooth-making clamp of cutter for sugar industry |
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CN202120629701.7U CN214559301U (en) | 2021-03-29 | 2021-03-29 | Multi-station tooth-making clamp of cutter for sugar industry |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113021038A (en) * | 2021-03-29 | 2021-06-25 | 宜昌长机科技有限责任公司 | Multi-station tooth-making clamp and clamping method for cutter used in sugar industry |
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2021
- 2021-03-29 CN CN202120629701.7U patent/CN214559301U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113021038A (en) * | 2021-03-29 | 2021-06-25 | 宜昌长机科技有限责任公司 | Multi-station tooth-making clamp and clamping method for cutter used in sugar industry |
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