CN114986397A - Clamping device for water jet polishing process - Google Patents

Clamping device for water jet polishing process Download PDF

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Publication number
CN114986397A
CN114986397A CN202210639759.9A CN202210639759A CN114986397A CN 114986397 A CN114986397 A CN 114986397A CN 202210639759 A CN202210639759 A CN 202210639759A CN 114986397 A CN114986397 A CN 114986397A
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CN
China
Prior art keywords
clamping
transmission
water jet
polishing process
clamping device
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Pending
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CN202210639759.9A
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Chinese (zh)
Inventor
宋辞
张志强
石峰
张万里
田野
铁贵鹏
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National University of Defense Technology
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National University of Defense Technology
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Application filed by National University of Defense Technology filed Critical National University of Defense Technology
Priority to CN202210639759.9A priority Critical patent/CN114986397A/en
Publication of CN114986397A publication Critical patent/CN114986397A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

The invention discloses a clamping device for a water jet polishing process, which comprises: the water tank is formed inside the shell, the bottom of the shell is sunken towards the inside of the shell, the processing boss is formed inside the water tank, and the sunken area of the bottom of the shell is provided with the accommodating cavity; the clamping mechanism comprises a driving module and a plurality of clamping components, the driving module is arranged inside the accommodating cavity, each clamping component comprises an ejector rod, the connecting end of the ejector rod of each clamping component is located in the accommodating cavity and connected with the driving module, the abutting end of the ejector rod of each clamping component penetrates through the processing boss and extends into the water tank, the abutting ends of all the ejector rods are matched to form a clamping structure for clamping a workpiece, and the driving module is used for driving the abutting ends of all the ejector rods to gather together or scatter together; wherein the receiving cavity is separated from the water tank.

Description

Clamping device for water jet polishing process
Technical Field
The invention relates to the technical field of water jet polishing processes, in particular to a clamping device for the water jet polishing process.
Background
With the continuous development of modern optical systems, the application of complex optical curved surfaces, particularly free-form curved surfaces, in various fields is more and more extensive, and the requirements on the surface quality and the surface shape precision of related optical parts are higher and higher. The traditional polishing technology can generate mechanical crushing defects and pollution defects on the surface and the subsurface of the part, and cannot meet the processing requirements of the current optical part. The abrasive water jet machining process effectively solves the problems, realizes the removal of the surface material of the workpiece from the elastic and plastic fields in a non-contact polishing mode, does not change the physical and mechanical properties of the material, does not generate the defects of heat damage and the like, and can polish the surface of any complex shape without the limitation of the shape and the space position of the workpiece by a fine nozzle.
The traditional efflux course of working rarely carries out special design and manufacturing to anchor clamps, or directly continue to carry out clamping processing to the work piece with ordinary anchor clamps, but in abrasive water jet polishing process, because the existence of little abrasive particle in the polishing solution, after polishing processing, if do not carry out timely clearance to the polishing solution, the polishing solution will take place to condense after a period of time, and the polishing solution is as liquid, can get into and persist in the middle of the tiny slit, especially when having spare parts such as lead screw among the drive mechanism of anchor clamps, the condensation of polishing solution will probably lead to the unable normal use of this drive mechanism, and the processing of polishing solution is comparatively difficult in tiny slit, except above problem, the existence of polishing solution can also lead to the wearing and tearing of certain degree to the anchor clamps, influence the life of anchor clamps.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a clamping device for a water jet polishing process, which is used for solving the problems that the traditional clamp cannot be normally used under the influence of polishing liquid and has short service life.
According to an embodiment of a first aspect of the present invention, a clamping device for a water jet polishing process includes: the water tank is formed inside the shell, the bottom of the shell is sunken towards the inside of the shell, a processing boss is formed inside the water tank, and an accommodating cavity is formed in a sunken area of the bottom of the shell; the clamping mechanism comprises a driving module and a plurality of clamping components, the driving module is arranged inside the accommodating cavity, each clamping component comprises an ejector rod, the connecting end of the ejector rod of each clamping component is positioned in the accommodating cavity and connected with the driving module, the abutting end of the ejector rod of each clamping component penetrates through the processing boss and extends into the water tank, the abutting ends of all the ejector rods are matched to form a clamping structure for clamping a workpiece, and the driving module is used for driving the abutting ends of all the ejector rods to gather or scatter mutually; wherein the receiving chamber is spaced apart from the water tank.
The clamping device for the water jet polishing process has the following technical effects:
in the clamping device for the water jet polishing process, the driving module is used for clamping the workpiece when driving the abutting ends of all the ejector rods to mutually gather, and the driving module is used for loosening the workpiece when driving the abutting ends of all the ejector rods to mutually scatter. In addition, because the accommodating cavity is separated from the water tank, the driving module is arranged in the accommodating cavity, the abutting end of the ejector rod of each clamping assembly penetrates through the processing boss and extends into the water tank, and the workpiece is abutted by all the ejector rods 231 and is positioned in the water tank when being clamped. When the workpiece is polished by the water jet, the water jet directly flows into the water tank after impacting the workpiece, and cannot enter the accommodating cavity, so that the drive module is not influenced, and the phenomenon that the drive module is abraded or even loses efficacy can be avoided.
According to some embodiments of the invention, the processing boss is provided with a plurality of through holes, all the ejector rods are movably arranged in all the through holes in a one-to-one correspondence manner, and the ejector rods are in sealing fit with the hole walls of the through holes.
According to some embodiments of the present invention, the driving module includes a power assembly and a transmission assembly, the transmission assembly includes a transmission gear and a plurality of transmission racks, the plurality of transmission racks are arranged at intervals along a circumferential direction of the transmission gear, each of the transmission racks is engaged with the transmission gear, the power assembly is in transmission connection with at least one of the transmission racks, and the plurality of transmission racks are in one-to-one transmission connection with the plurality of clamping assemblies.
According to some embodiments of the invention, the power assembly is configured to drive each of the transmission racks to move in a direction tangential to the transmission gear, and the driving module further includes a guiding structure configured to drive all the ejector rods to move in a radial direction of the transmission gear when the power assembly drives each of the transmission racks to move in a direction tangential to the transmission gear.
According to some embodiments of the invention, the power assembly comprises a plurality of linear drive units, and the plurality of linear drive units are in one-to-one transmission connection with the plurality of transmission racks.
According to some embodiments of the invention, the clamping mechanism further comprises a chassis covering the lower opening of the accommodating chamber, and the driving module is disposed on the chassis.
According to some embodiments of the invention, a plurality of sliding grooves are arranged on the chassis, the plurality of sliding grooves are distributed along the circumferential direction of the transmission gear, each sliding groove is parallel to a tangent line of the transmission gear, each transmission rack is provided with a sliding strip, and the sliding strips on the plurality of transmission racks slidably penetrate through the plurality of sliding grooves in a one-to-one correspondence manner.
According to some embodiments of the invention, the top of the processing boss is recessed downwards to form a processing groove, and the abutting end of the ejector rod extends into the processing groove;
the clamping device for the water jet polishing process further comprises a machining table and a leveling mechanism capable of leveling the machining table, wherein the machining table is arranged in the machining groove and is positioned below the ejector rod.
According to some embodiments of the present invention, a diversion trench is further disposed on the top of the processing boss, one end of the diversion trench penetrates through the sidewall of the processing trench, and the other end of the diversion trench penetrates through the outer sidewall of the processing boss.
According to some embodiments of the invention, the clamping device for the water jet polishing process further comprises a pressure sensor for detecting the pressure between the ejector rod and the workpiece; and/or
The clamping device for the water jet polishing process further comprises a displacement sensor, and the displacement sensor is used for detecting the displacement of the ejector rod.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a clamping device for a water jet polishing process according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a housing according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a clamping mechanism according to an embodiment of the invention;
FIG. 4 is a schematic view of a portion of a clamping mechanism according to an embodiment of the invention;
FIG. 5 is a cross-sectional structural view of a clamping assembly in accordance with an embodiment of the present invention;
FIG. 6 is a first schematic view of an assembly structure of a processing table and a leveling mechanism according to an embodiment of the present invention;
fig. 7 is a second schematic view of an assembly structure of the processing table and the leveling mechanism according to an embodiment of the present invention.
Reference numerals:
100. a housing; 101. a water tank; 102. an accommodating chamber; 103. a drain hole; 110. processing a boss; 111. processing a tank; 112. a diversion trench;
200. a clamping mechanism; 210. a chassis; 211. a chute; 212. a guide table; 2121. a guide groove; 213. mounting a column; 220. a drive module; 2211. a motor; 2212. a lead screw; 2213. a motor bracket; 2214. a first lead screw bracket; 2215. a second lead screw bracket; 2221. a transmission gear; 2222. a drive rack; 22221. a guide groove; 230. a clamping assembly; 231. a top rod; 232. a base body; 233. a first spring; 234. a first nut; 235. adjusting a rod;
300. a processing table;
400. a leveling mechanism; 410. a leveling assembly; 411. a leveling rod; 412. a second nut; 413. a second spring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 3, one embodiment of the clamping device for a water jet polishing process includes a housing 100 and a clamping mechanism 200.
As shown in fig. 1 and 2, a water tank 101 is formed inside the housing 100, a bottom of the housing 100 is recessed into the housing 100, a processing boss 110 is formed inside the water tank 101, and a receiving cavity 102 is formed in a recessed area of the bottom of the housing 100.
Specifically, the housing 100 is a structure provided with a water tank 101, and a notch of the water tank 101 is located at the top of the housing 100. The bottom of the case 100 is recessed toward the inside of the case 100 so that a processing boss 110 is formed inside the water tank 101, and a workpiece can be placed on the processing boss 110 to be processed. After the bottom of the housing 100 is recessed into the housing 100, a recessed area is formed, and the recessed area is the receiving cavity 102.
As shown in fig. 1 and 3, the clamping mechanism 200 includes a driving module 220 and a plurality of clamping assemblies 230, the driving module 220 is disposed inside the accommodating cavity 102, each clamping assembly 230 includes a push rod 231, a connection end of the push rod 231 of each clamping assembly 230 is located in the accommodating cavity 102 and connected to the driving module 220, a support end of the push rod 231 of each clamping assembly 230 passes through the processing boss 110 and extends into the water tank 101, support ends of all the push rods 231 cooperate to form a clamping structure for clamping a workpiece, and the driving module 220 is configured to drive the support ends of all the push rods 231 to gather together or scatter apart.
Specifically, the driving module 220 is used for clamping the workpiece when driving the abutting ends of all the ejector rods 231 to converge, and the driving module 220 is used for loosening the workpiece when driving the abutting ends of all the ejector rods 231 to scatter.
Further, the receiving chamber 102 is spaced apart from the water tank 101. Moreover, since the driving module 220 is disposed in the accommodating cavity 102, the abutting end of the top bar 231 of each clamping assembly 230 passes through the processing boss 110 and extends into the water tank 101, and the workpiece is positioned in the water tank 101 when being abutted and clamped by all the top bars 231. When the workpiece is polished by the water jet, the water jet directly flows into the water tank 101 after impacting on the workpiece, and does not enter the accommodating cavity 102, so that the driving module 220 is not affected, and the phenomenon that the driving module 220 is worn or even fails can be avoided.
As shown in fig. 1, in one embodiment, a plurality of through holes are formed on the processing boss 110, all the push rods 231 are movably inserted into all the through holes in a one-to-one correspondence manner, and the push rods 231 are in sealing fit with the hole walls of the through holes. Thus, the connecting end of the push rod 231 is located in the accommodating cavity 102, and with the driving module 220, the abutting end of the push rod 231 can penetrate through the water inlet tank 101 through the through hole. In addition, because the ejector rod 231 is in sealing fit with the hole wall of the through hole, the polishing liquid can be prevented from entering the accommodating cavity 102 through a gap between the ejector rod 231 and the hole wall of the through hole when the workpiece is subjected to water jet machining as far as possible.
Specifically, the aperture of the through hole is slightly larger than the outer diameter of the lift pin 231, the lift pin 231 can extend and contract in the through hole, and the gap between the lift pin 231 and the wall of the through hole can prevent the polishing liquid from entering the accommodating cavity 102 to some extent.
The smaller the gap between the lift pin 231 and the wall of the through hole, the better the sealing effect between the lift pin 231 and the wall of the through hole.
Specifically, all the through holes are located at the same height, and all the through holes are arranged at intervals in a circumferential direction. All the ejector rods 231 penetrate through all the through holes in a one-to-one correspondence manner and are arranged at intervals along the circumferential direction, and all the ejector rods 231 can be mutually gathered or mutually scattered under the driving of the driving module.
Further, the abutting end of the ejector rod 231 is provided with a soft rubber head, so that the ejector rod 231 and the workpiece are indirectly abutted through the soft rubber head, and the workpiece can be prevented from being damaged by clamping.
As shown in fig. 3 and 4, in one embodiment, the driving module 220 includes a power assembly and a transmission assembly, the transmission assembly includes a transmission gear 2221 and a plurality of transmission racks 2222, the plurality of transmission racks 2222 are spaced apart from each other along a circumferential direction of the transmission gear 2221, each transmission rack 2222 is engaged with the transmission gear 2221, the power assembly is in transmission connection with at least one transmission rack 2222, and the plurality of transmission racks 2222 are in one-to-one transmission connection with the plurality of clamping assemblies 230.
Specifically, the power assembly is used for transmitting power to at least one transmission rack 2222, so that the transmission rack 2222 can drive the transmission gear 2221 to rotate when moving, thereby driving all the transmission racks 2222 to move, and all the transmission racks 2222 can drive all the clamping assemblies 230 to move when moving, thereby allowing the abutting ends of all the push rods 231 to gather together or scatter apart.
More specifically, the power assembly is configured to drive each driving rack 2222 to move in a direction tangential to the driving gear 2221, and the driving module 220 further includes a guiding structure configured to drive all the push rods 231 to move along the radial direction of the driving gear 2221 when the power assembly drives each driving rack 2222 to move in a direction tangential to the driving gear 2221.
Specifically, when the power assembly drives each transmission rack 2222 to move in a direction tangential to the transmission gear 2221, the push rods 231 can be driven to move in the radial direction of the transmission gear 2221, so that the abutting ends of all the push rods 231 are gathered or scattered.
More specifically, the guide structure includes a guide groove 22221 provided on the driving rack 2222, a guide block provided on the clamping assembly 230, and a guide table 212 for guiding the clamping assembly 230, the guide block being slidably inserted into the guide groove 22221.
Specifically, the guide table 212 is provided with a guide groove 2121, the clamping assembly 230 is disposed in the guide groove 2121 and abuts against two sidewalls of the guide groove 2121, and the guide groove 2121 is used for guiding the clamping assembly 230 to move along a radial direction of the transmission gear 2221. The guide groove 22221 and the guide block are both obliquely arranged, the guide block is slidably disposed in the guide groove 22221, and the structure formed by the guide groove 22221 and the guide block enables the push rod 231 to move along the radial direction of the transmission gear 2221 when the transmission rack 2222 moves along the direction tangential to the transmission gear 2221.
Further, the power assembly includes a plurality of linear driving units, which are in one-to-one correspondence with the plurality of driving racks 2222. In this way, each driving rack 2222 can be driven by one linear driving unit, so that the phenomenon of excessive stress generated in the process of the meshing motion of the driving rack 2222 and the driving gear 2221 when a single linear driving unit drives one driving rack 2222 to move can be avoided. And, all the driving racks 2222 are engaged with the driving gear 2221, and the movement consistency of all the driving racks 2222 is higher under the action of the driving gear 2221, so that the movement consistency of all the push rods 231 is higher.
Specifically, the linear driving unit includes a motor 2211 and a lead screw 2212 connected to a driving shaft of the motor 2211, the transmission rack 2222 is provided with a threaded hole, and the lead screw 2212 is inserted into the threaded hole. When the motor 2211 is started, the lead screw 2212 can be driven to rotate, so that the transmission rack 2222 is driven to move.
More specifically, the motor 2211 is disposed on the motor holder 2213, two ends of the lead screw 2212 are respectively supported by the first lead screw holder 2214 and the second lead screw holder 2215, the transmission rack 2222 is located between the first lead screw holder 2214 and the second lead screw holder 2215, and meanwhile, the first lead screw holder 2214 and the second lead screw holder 2215 can also limit the transmission rack 2222 to limit the movement stroke of the transmission rack 2222.
Referring to fig. 2 and 3, in one embodiment, the clamping mechanism 200 further includes a bottom plate 210, the bottom plate 210 covers the lower opening of the accommodating cavity 102, and the driving module 220 is disposed on the bottom plate 210. As such, the drive module 220 may be enclosed within the receiving cavity 102 by the chassis 210, and the chassis 210 also provides support for the mounting of the drive module 220.
As shown in fig. 4, in particular, the chassis 210 is provided with a mounting column 213, and the transmission gear 2221 is rotatably sleeved on the mounting column 213.
Further, a plurality of sliding grooves 211 are formed in the base plate 210, the sliding grooves 211 are arranged along the circumferential direction of the transmission gear 2221, each sliding groove 211 is parallel to a tangent line of the transmission gear 2221, each transmission rack 2222 is provided with a sliding strip, and the sliding strips on the transmission racks 2222 are slidably arranged in the sliding grooves 211 in a one-to-one correspondence manner. The power assembly may drive the driving rack 2222 to move along the sliding groove 211, so that the driving rack 2222 moves in a direction parallel to a tangent of the driving gear 2221.
As shown in fig. 5, in one embodiment, the clamping assembly 230 further includes a base 232, a first spring 233, an adjusting rod 235 and a first nut 234, the connecting end of the top rod 231 extends into the base 232 and is connected to the first nut 234, the first spring 233 is located in the base 232 and abuts against the top rod 231, and the adjusting rod 235 is disposed through the first nut 234. Through the rotation adjusting rod 235, the first nut 234 can be rotated, so that the ejector rod 231 stretches and retracts, the position of the ejector rod 231 is finely adjusted, and the clamping effect of the ejector rod 231 on a workpiece is guaranteed.
Specifically, the adjusting rod 235 is a screw rod, the first nut 234 is sleeved outside the adjusting rod 235, and the first nut 234 can move on the adjusting rod 235 by rotating the adjusting rod 235, so that the push rod 231 moves along the radial direction of the transmission gear 2221. The first spring 233 can prevent the lift pin 231 from being moved during clamping.
In addition, in this application, because first lead screw support 2214 and second lead screw support 2215 can also play a limiting role to transmission rack 2222, limit the stroke of transmission rack 2222, when transmission rack 2222 reaches the extreme position, rotatable regulation pole 235 to make ejector pin 231 further remove, realize the clamp to the work piece.
As shown in fig. 1, in one embodiment, the top of the processing boss 110 is recessed downward to form a processing groove 111, and the abutting end of the ejector rod 231 extends into the processing groove 111; the clamping device for the water jet polishing process further includes a machining table 300, and a leveling mechanism 400 capable of leveling the machining table 300, the machining table 300 being disposed in the machining tank 111 below the ejector 231.
Specifically, the abutting ends of the ejector pins 231 extend into the processing tank 111 through the side wall of the processing tank 111, and all of the ejector pins 231 are used to clamp the workpiece in the processing tank 111. When the workpiece is clamped by all the ejector rods 231, the workpiece may overturn, and the leveling mechanism 400 is used for driving and adjusting the inclination of the processing table 300, so that the angle of the workpiece can be adjusted by the processing table 300, the workpiece is leveled, and the subsequent jet flow processing is ensured to be normally performed.
As shown in fig. 6 and 7, specifically, the leveling mechanism 400 includes a plurality of leveling components 410, each leveling component 410 includes a leveling rod 411, a second nut 412 and a second spring 413, each leveling rod 411 is U-shaped, one end of each leveling rod 411 is connected to the processing table 300, the other end of each leveling rod 411 is in threaded connection with the second nut 412, and the second spring 413 is sleeved on the leveling rod 411 and abuts against the processing table 300. The leveling rod 411 is located in the accommodating cavity 102, the second nut 412 abuts against the outer side wall of the processing boss 110, and the inclination angle of the processing table 300 can be changed by screwing or unscrewing the second nut 412, so that leveling is realized.
In one embodiment, a diversion trench 112 is further disposed at the top of the processing boss 110, one end of the diversion trench 112 penetrates through the sidewall of the processing trench 111, and the other end penetrates through the outer sidewall of the processing boss 110. When the workpiece is subjected to the fluid jet machining, the polishing fluid may flow into the bottom of the water tank 101 along the guide groove 112 and then flow out through the water discharge hole 103 of the housing 100.
Specifically, the guiding groove 112 is disposed obliquely, and one end of the guiding groove 112 close to the processing groove 111 is higher than one end of the guiding groove 112 far from the processing groove 111. The number of the guide grooves 112 is multiple, the guide grooves 112 are uniformly arranged around the processing groove 111 at intervals, and the guide grooves 112 can guide out the polishing liquid in the processing groove 111 as soon as possible, so that the polishing liquid is prevented from accumulating on the surface of the workpiece.
In one embodiment, the clamping device for the water jet polishing process further includes a pressure sensor (not shown) for detecting a pressure between the carrier rod 231 and the workpiece.
Further, the clamping device for the water jet polishing process further includes a displacement sensor (not shown) for detecting the amount of displacement of the carrier rod 231.
Thus, when the push rod 231 abuts against the workpiece, the adjustment rod 235 and the leveling mechanism 400 can be controlled to realize centering and leveling of the workpiece by observing values fed back by the pressure sensor and the displacement sensor.
In addition, after the workpiece is clamped and leveled, the workpiece can be processed by using the water jet device, and after the jet is sprayed to the workpiece and processed, the jet flows to the bottom of the water tank 101 along the diversion trench 112 and then flows back to the water tank from the water drainage hole 103 at the bottom of the water tank 101. After the workpiece is machined once each time, the reading fed back by the pressure sensor and the displacement sensor in the machining process can be recorded, so that the workpiece can be continuously fixed on the initial position by adjusting the pressure and the elongation of the ejector rod 231 in the process of re-clamping after the workpiece is disassembled and measured, and the subsequent jet polishing process is facilitated.
In the clamping device for the water jet polishing process, the driving module 220 is used for clamping the workpiece when driving the abutting ends of all the ejector rods 231 to gather together, and the driving module 220 is used for loosening the workpiece when driving the abutting ends of all the ejector rods 231 to scatter apart. In addition, since the accommodating chamber 102 is separated from the water tank 101, the driving module 220 is disposed in the accommodating chamber 102, the abutting end of the top bar 231 of each clamping assembly 230 passes through the processing boss 110 and extends into the water tank 101, and the workpiece is positioned in the water tank 101 when being abutted and clamped by all the top bars 231. When the workpiece is polished by the water jet, the water jet directly flows into the water tank 101 after impacting on the workpiece, and does not enter the accommodating cavity 102, so that the driving module 220 is not affected, and the phenomenon that the driving module 220 is worn or even fails can be avoided.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A clamping device for a water jet polishing process, comprising:
the water tank is formed inside the shell, the bottom of the shell is sunken towards the inside of the shell, a processing boss is formed inside the water tank, and an accommodating cavity is formed in a sunken area of the bottom of the shell; and
the clamping mechanism comprises a driving module and a plurality of clamping components, the driving module is arranged inside the accommodating cavity, each clamping component comprises an ejector rod, the connecting end of the ejector rod of each clamping component is positioned in the accommodating cavity and connected with the driving module, the abutting end of the ejector rod of each clamping component penetrates through the processing boss and extends into the water tank, the abutting ends of all the ejector rods are matched to form a clamping structure for clamping a workpiece, and the driving module is used for driving the abutting ends of all the ejector rods to gather together or scatter apart;
wherein the receiving chamber is spaced apart from the water tank.
2. The clamping device for the water jet polishing process according to claim 1, wherein a plurality of through holes are formed in the processing boss, all the ejector rods are movably inserted into all the through holes in a one-to-one correspondence manner, and the ejector rods are in sealing fit with the hole walls of the through holes.
3. The clamping device for the water jet polishing process according to claim 1, wherein the driving module comprises a power assembly and a transmission assembly, the transmission assembly comprises a transmission gear and a plurality of transmission racks, the plurality of transmission racks are arranged at intervals along the circumferential direction of the transmission gear, each transmission rack is meshed with the transmission gear, the power assembly is in transmission connection with at least one transmission rack, and the plurality of transmission racks are in one-to-one transmission connection with the plurality of clamping assemblies.
4. The clamping device for the water jet polishing process according to claim 3, wherein the power assembly is configured to drive each of the transmission racks to move in a direction tangential to the transmission gear, and the driving module further comprises a guiding structure configured to drive all the push rods to move in a radial direction of the transmission gear when the power assembly drives each of the transmission racks to move in a direction tangential to the transmission gear.
5. The clamping device for the water jet polishing process according to claim 4, wherein the power assembly comprises a plurality of linear driving units, and the plurality of linear driving units are in transmission connection with the plurality of transmission racks in a one-to-one correspondence manner.
6. The clamping device for a water jet polishing process according to claim 4, wherein the clamping mechanism further comprises a bottom plate which covers a lower opening of the accommodating chamber, and the driving module is disposed on the bottom plate.
7. The clamping device for the water jet polishing process according to claim 6, wherein a plurality of sliding grooves are formed in the base plate, the plurality of sliding grooves are arranged along the circumferential direction of the transmission gear, each sliding groove is parallel to a tangent line of the transmission gear, a sliding strip is arranged on each transmission rack, and the sliding strips on the plurality of transmission racks slidably penetrate through the plurality of sliding grooves in a one-to-one correspondence manner.
8. The clamping device for the water jet polishing process according to claim 1, wherein the top of the processing boss is recessed downwards to form a processing groove, and the abutting end of the ejector rod extends into the processing groove;
the clamping device for the water jet polishing process further comprises a machining table and a leveling mechanism capable of leveling the machining table, wherein the machining table is arranged in the machining groove and is positioned below the ejector rod.
9. The clamping device for the water jet polishing process according to claim 8, wherein a guide groove is further formed in the top of the processing boss, one end of the guide groove penetrates through the side wall of the processing groove, and the other end of the guide groove penetrates through the outer side wall of the processing boss.
10. The clamping device for a water jet polishing process according to claim 1, further comprising a pressure sensor for detecting a pressure between the carrier rod and the workpiece; and/or
The clamping device for the water jet polishing process further comprises a displacement sensor, and the displacement sensor is used for detecting the displacement of the ejector rod.
CN202210639759.9A 2022-06-08 2022-06-08 Clamping device for water jet polishing process Pending CN114986397A (en)

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