Disclosure of Invention
The application aims to provide a chuck structure for screw-free rapid locking, which simplifies the chuck replacement process and improves the chuck replacement speed.
In a first aspect, the application provides a chuck structure for screw-free rapid locking, which adopts the following technical scheme:
The chuck structure for screw-free quick locking comprises a main shaft assembly and a chuck assembly, wherein the chuck assembly is inserted into the main shaft assembly and is clamped and fixed with the main shaft assembly;
The clamping head assembly comprises a clamping head part and a connecting part nested outside the bottom end of the clamping head part, and a clamping groove is formed in a clamping part, close to the main shaft assembly, of the connecting part;
The main shaft assembly comprises a main shaft body, a fixed outer sleeve nested outside the main shaft body and a locking outer sleeve nested outside the fixed outer sleeve, the locking outer sleeve is in sliding connection with the fixed outer sleeve, and a plurality of steel balls are arranged at the clamping part, close to the chuck assembly, of the main shaft body;
when the locking sleeve is static, the steel balls are propped forward by the locking sleeve towards the front of the inner part of the main shaft body, at the moment, the inward inclination of the locking sleeve can generate pressing force on the steel balls, and the steel balls protrude towards the inner part of the main shaft body and are clamped in the clamping grooves, so that the chuck assembly and the main shaft assembly are clamped and fixed;
when the locking sleeve moves to a first preset distance in the direction approaching to the fixed sleeve, the pressing force applied to the steel balls disappears, and the steel balls are separated from the clamping grooves, so that the chuck assembly is separated from the spindle assembly.
By adopting the technical scheme, when the chuck assembly is required to be inserted, the steel balls can be separated from the clamping groove only by moving the locking sleeve to a first preset distance in the direction close to the fixed sleeve, so that the chuck assembly is easily inserted, then the locking sleeve is loosened, the steel balls are protruded towards the inside of the main shaft body and clamped in the clamping groove, so that the chuck assembly and the main shaft assembly are clamped and fixed, and otherwise, when the chuck assembly is required to be removed, the locking sleeve is also moved to the first preset distance in the direction close to the fixed sleeve, so that the chuck assembly can be easily pulled out. Therefore, the effect of quickly replacing the chuck is achieved, the effects of quick replacement and convenient type replacement are achieved under the conditions of one-line production and use processes and type replacement, the traditional screw locking mode is effectively replaced, the technical dependence on manual operation is effectively met, the chuck replacement process is simplified, and the chuck replacement speed is improved.
Further, a first reset spring is arranged between the main shaft body and the fixed outer sleeve, the bottom end of the first reset spring is clamped with the fixed outer sleeve, and the top end of the first reset spring is clamped with the locking outer sleeve;
when the locking jacket is stationary, the first return spring remains in a return state;
When the locking sleeve moves towards the direction approaching the fixed sleeve, the first return spring is in a compressed state.
By adopting the technical scheme, the locking jacket is reset through the first reset spring, and when the locking jacket is loosened after the chuck assembly is inserted, the locking jacket is reset through the first reset spring, so that the steel balls are protruded towards the inside of the main shaft body and clamped in the clamping grooves, the chuck replacement process is simplified, and the chuck replacement speed is improved.
Further, the chuck part comprises a chuck top core, a chuck body arranged outside the chuck top core and a chuck upper sleeve nested outside the chuck body;
The bottom of the chuck body is fixedly connected with the connecting part, the top of the chuck body is of an inverted trapezoid cylindrical structure, the chuck body comprises a plurality of chuck elastic columns, and a gap is reserved between every two chuck elastic columns;
When the upper sleeve of the chuck is static, the tops of the chuck elastic columns are clamped;
when the upper sleeve of the chuck moves to a second preset distance in a direction away from the top of the chuck body, the tops of the plurality of chuck elastic columns are opened.
By adopting the technical scheme, the chuck part is used for clamping and fixing the workpiece, when the workpiece is required to be fixed, the upper sleeve of the chuck is only required to be moved to a second preset distance in a direction away from the top of the chuck body, so that the inverted trapezoid cylindrical structure at the top of the chuck body is separated from the upper sleeve of the chuck, the top of the chuck elastic column is opened, the workpiece is convenient to place, and after the workpiece is placed, the upper sleeve of the chuck is loosened, so that the top of the chuck elastic column is clamped, the workpiece is clamped and fixed, and the convenience of using the chuck is improved.
Further, a second reset spring is arranged between the upper sleeve of the chuck and the chuck body, the bottom end of the second reset spring is clamped with the top end of the connecting part, and the top end of the second reset spring is clamped with the upper sleeve of the chuck;
when the upper sleeve of the chuck is static, the second reset spring keeps a reset state;
when the upper sleeve of the chuck moves in a direction away from the top of the chuck body, the second return spring is in a compressed state.
By adopting the technical scheme, the second reset spring is used for resetting the upper sleeve of the chuck, and when the upper sleeve of the chuck is loosened after the workpiece is fixed, the second reset spring is used for resetting the upper sleeve of the chuck, so that the tops of the elastic columns of the plurality of chucks clamp the workpiece, and the convenience of using the chucks is improved.
Furthermore, a plurality of air blowing holes are formed in the top of the chuck top core and are used for cooling and blowing air in the chuck part.
By adopting the technical scheme, the application considers that iron powder of the magnetic core can be remained in the chuck assembly after the chuck assembly clamps the patch inductance magnetic core for a long time in the winding production process, and the inner air blowing hole can be used for automatically cleaning the chuck assembly, so that manual operation can be replaced, and the cleaning efficiency is ensured. Meanwhile, the situations that when soldering tin is clamped on a chip patch inductor, the product is subjected to high temperature to cause dark cracking and breakage of the product due to the fact that the temperature of the soldering tin reaches about 500 ℃, and the product has obvious marks due to the fact that rosin smoke mould generated during soldering tin adheres to the inside of a chuck are considered. At this time, the product can be cooled down by breeze through the cooling blowholes under soldering tin or other high Wen Changjing, so that the problems that mould of loose cigarettes adheres to the inside of the chuck and the like are solved, and meanwhile, the problems of dark cracking, breakage and the like of the product caused by high temperature are avoided, thereby effectively improving the qualification rate of the product.
Furthermore, two symmetrical positioning grooves are formed in the top end of the main shaft body, a directional pin is arranged on the outer side of the connecting portion, and the directional pin is clamped into any one of the positioning grooves, so that the clamping positions and directions of the chuck assembly and the main shaft assembly are fixed.
Through the adoption of the technical scheme, the positioning groove is matched with the directional pin, so that the position of the chuck assembly when the chuck assembly is inserted into the spindle assembly can be determined, the angle and the position do not need to be manually adjusted, and the convenience of using the chuck is improved.
Further, the top of the locking jacket is further provided with a limiting ring, the limiting ring is nested outside the main shaft body, and the limiting ring is fixedly connected with the main shaft body through a plurality of first connecting pieces.
By adopting the technical scheme, the locking jacket is limited by the limiting ring, so that the stability of the chuck structure can be ensured when the locking jacket receives the elastic force of the first return spring.
Further, a first connecting groove is formed in the joint of the main shaft body and the limiting ring, and a plurality of first connecting pieces penetrate through the limiting ring and are clamped in the first connecting groove, so that the limiting ring is fixedly connected with the main shaft body.
Through the adoption of the technical scheme, the limiting ring is fixedly connected with the main shaft body through the first connecting groove and the first connecting piece, so that the clamping head structure is convenient to detach and install, and the convenience of assembling the clamping head structure is improved.
Further, a second connecting groove is formed in the joint of the chuck body and the connecting portion, and a plurality of second connecting pieces penetrate through the connecting portion and are clamped in the second connecting groove, so that the connecting portion is fixedly connected with the chuck body.
Through the adoption of the technical scheme, the connecting part is fixedly connected with the chuck body through the second connecting groove and the second connecting piece, so that the chuck is convenient to detach and install, and the convenience of assembling the chuck structure is improved.
Furthermore, a sealing ring is further arranged at the joint of the chuck assembly and the main shaft assembly.
By adopting the technical scheme, the sealing performance of the inside of the chuck structure is improved through the sealing ring.
In summary, the present application includes at least one of the following beneficial technical effects:
1. When the chuck assembly is required to be inserted, the steel balls can be separated from the clamping grooves only by moving the locking outer sleeve to a first preset distance in a direction close to the fixed outer sleeve, so that the chuck assembly is easily inserted, then the locking outer sleeve is loosened, the steel balls are protruded towards the inside of the main shaft body and clamped in the clamping grooves, so that the chuck assembly and the main shaft assembly are clamped and fixed, otherwise, when the chuck assembly is required to be removed, the locking outer sleeve is also moved to the first preset distance in a direction close to the fixed outer sleeve, and the chuck assembly can be easily pulled out. Therefore, the effect of quickly replacing the chuck is realized, the effects of quick replacement and convenient mold replacement are realized under the conditions of the production and use processes and mold replacement, the traditional screw locking mode and the technical dependence on manual operation are effectively replaced, the chuck replacement process is simplified, and the chuck replacement speed is improved;
2. The clamping head part is used for clamping and fixing a workpiece, when the workpiece is required to be fixed, the upper clamping head sleeve is only required to be moved to a second preset distance in a direction away from the top of the clamping head body, so that the inverted trapezoid cylindrical structure at the top of the clamping head body is separated from the upper clamping head sleeve, the top of the elastic clamping head column is opened, the workpiece is convenient to place, and after the workpiece is placed, the upper clamping head sleeve is loosened, the top of the elastic clamping head column is clamped, so that the workpiece is clamped and fixed, and the convenience of using the clamping head is improved;
3. According to the application, the iron powder of the magnetic core generated by the chuck assembly after the chuck assembly clamps the surface-mounted inductor magnetic core in the winding production process for a long time is remained in the chuck assembly, so that the chuck assembly can be automatically cleaned by using the internal air blowing holes, the manual operation can be replaced, and the cleaning efficiency is ensured. Meanwhile, the situations that when soldering tin is clamped on a chip patch inductor, the product is subjected to high temperature to cause dark cracking and breakage of the product due to the fact that the temperature of the soldering tin reaches about 500 ℃, and the product has obvious marks due to the fact that rosin smoke mould generated during soldering tin adheres to the inside of a chuck are considered. At this time, the product can be cooled down by breeze through the cooling blowholes under soldering tin or other high Wen Changjing, so that the problems that mould of loose cigarettes adheres to the inside of the chuck and the like are solved, and meanwhile, the problems of dark cracking, breakage and the like of the product caused by high temperature are avoided, thereby effectively improving the qualification rate of the product.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present application;
FIG. 3 is a schematic view of a spindle body according to an embodiment of the present application;
FIG. 4 is a schematic view of a chuck assembly according to an embodiment of the application;
FIG. 5 is a schematic view of a chuck body according to an embodiment of the present application;
FIG. 6 is a schematic view of a chuck top core structure according to an embodiment of the present application;
In the figure, 1, a main shaft assembly, 11, a main shaft body, 111, a positioning groove, 112, a first connecting groove, 12, a fixing sleeve, 13, a locking sleeve, 14, steel balls, 15, a first reset spring, 16, a limiting ring, 161, a first connecting piece, 2, a chuck assembly, 21, a chuck part, 211, a chuck top core, 2111, a gas blowing hole, 212, a chuck body, 2121, an inverted trapezoid cylindrical structure, 2122, a chuck elastic column, 2123, a second connecting groove, 213, a chuck upper sleeve, 214, a second reset spring, 22, a connecting part, 221, a clamping groove, 222, a directional pin, 223, a second connecting piece, 224 and a sealing ring.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 6.
The existing clamp generally needs to adopt screws when replacing and fixing the clamp, and the state of the clamp, such as a rotating angle, a depth of an inserted shaft hole and the like, is additionally adjusted, and is dependent on manual operation, so that the clamp replacement process is troublesome and complex, and the machining efficiency is affected. Therefore, the embodiment of the application provides a screw-free chuck structure for quick locking, referring to fig. 1,2 and 3, which comprises a spindle assembly 1 and a chuck assembly 2, wherein the bottom of the spindle assembly 1 is used for connecting equipment, the top of the chuck assembly 2 is used for clamping a workpiece, and the chuck assembly 2 is inserted into the spindle assembly 1 and clamped and fixed with the spindle assembly 1, so that different chuck assemblies 2 can be conveniently replaced. The chuck assembly 2 comprises a chuck part 21 and a connecting part 22 nested outside the bottom end of the chuck part 21, and a clamping groove 221 is formed at the clamping part of the connecting part 22, which is close to the spindle assembly 1. The main shaft assembly 1 comprises a main shaft body 11, a fixed outer sleeve 12 nested outside the main shaft body 11 and a locking outer sleeve 13 nested outside the fixed outer sleeve 12, wherein the locking outer sleeve 13 is in sliding connection with the fixed outer sleeve 12, and a plurality of steel balls 14 are arranged at the clamping joint of the main shaft body 11, which is close to the chuck assembly 2. In a specific implementation, the steel balls 14 may be two, four or more symmetrically arranged. When the locking sleeve 13 is static, the steel balls 14 are pressed by the locking sleeve 13 towards the inner direction of the main shaft body 11, and the steel balls 14 protrude towards the inner side of the main shaft body 11 and are clamped in the clamping grooves 221, so that the chuck assembly 2 and the main shaft assembly 1 are clamped and fixed. When the locking sleeve 13 moves to a first preset distance in a direction approaching the fixed sleeve 12, the pressing force applied to the steel balls 14 disappears, and the steel balls 14 are separated from the clamping grooves 221, so that the chuck assembly 2 is separated from the spindle assembly 1.
A first return spring 15 is further arranged between the main shaft body 11 and the fixed outer sleeve 12, the bottom end of the first return spring 15 is clamped with the fixed outer sleeve 12, and the top end of the first return spring 15 is clamped with the locking outer sleeve 13. The first return spring 15 remains in a return state when the locking jacket 13 is stationary. When the lock housing 13 is moved in a direction approaching the fixed housing 12, the first return spring 15 is in a compressed state.
The embodiment of the application has the implementation principle that when the chuck assembly 2 needs to be inserted, the locking sleeve 13 is moved to a first preset distance in the direction of approaching the fixed sleeve 12, the steel balls 14 can be separated from the clamping groove 221, so that the chuck assembly 2 can be easily inserted, the locking sleeve 13 is released, the steel balls 14 are protruded towards the inside of the main shaft body 11 and clamped in the clamping groove 221, so that the chuck assembly 2 and the main shaft assembly 1 are clamped and fixed, and otherwise, when the chuck assembly 2 needs to be removed, the locking sleeve 13 is moved to the first preset distance in the direction of approaching the fixed sleeve 12, so that the chuck assembly 2 can be easily pulled out. The first return spring 15 is used for resetting the locking sleeve 13, and when the locking sleeve 13 is loosened after the chuck assembly 2 is inserted, the first return spring 15 is used for resetting the locking sleeve 13, so that the steel balls 14 protrude into the main shaft body 11 and are clamped in the clamping grooves 221. Therefore, the effect of quickly replacing the chuck is achieved, the effects of quick replacement and convenient type replacement are achieved under the conditions of one-line production and use processes and type replacement, the traditional screw locking mode is effectively replaced, the technical dependence on manual operation is effectively met, the chuck replacement process is simplified, and the chuck replacement speed is improved.
By way of example, assuming a first predetermined distance of 6mm, i.e., a distance of at least 6mm between the top of the locking sleeve 13 and the steel balls 14 in the resting state, when the collet assembly 2 is to be inserted, the collet assembly 2 can be easily inserted by moving the locking sleeve 13 approximately 6mm toward the fixed sleeve 12 and then releasing the locking sleeve 13, wherein the steel balls 14 lock the collet assembly 2 with the urging of the first return spring 15 and the locking sleeve 13.
As shown in fig. 2 and 3, two symmetrical positioning grooves 111 are formed at the top end of the main shaft body 11 in the embodiment of the present application, and an orientation pin 222 is disposed at the outer side of the connecting portion 22, and the orientation pin 222 is clamped into any one of the positioning grooves 111, so that the clamping positions and directions of the chuck assembly 2 and the main shaft assembly 1 are fixed. Through the cooperation of constant head tank 111 and directional pin 222, make directional pin 222 aim at constant head tank 111 and insert, the position when guaranteeing chuck subassembly 2 to insert main shaft subassembly 1 can confirm, need not to carry out angle and position adjustment again through the manual work after inserting, promotes the convenience that the chuck used.
As shown in fig. 1,2 and 3, a limiting ring 16 is arranged at the top of a locking jacket 13 in the embodiment of the application, the limiting ring 16 is nested outside a main shaft body 11, and the limiting ring 16 is fixedly connected with the main shaft body 11 through a plurality of first connecting pieces 161. The joint of the main shaft body 11 and the limiting ring 16 is provided with a first connecting groove 112, and a plurality of first connecting pieces 161 penetrate through the limiting ring 16 and are clamped in the first connecting groove 112, so that the limiting ring 16 is fixedly connected with the main shaft body 11. The number of the first connectors 161 is four in the embodiment of the present application, and may be two or more in other embodiments.
As shown in fig. 2,4 and 5, the collet 21 according to the embodiment of the present application includes a collet core 211, a collet body 212 mounted outside the collet core 211, and a collet upper sleeve 213 nested outside the collet body 212. The bottom of the chuck body 212 is fixedly connected with the connecting portion 22, the top of the chuck body 212 is of an inverted trapezoid cylindrical structure 2121, the chuck body 212 comprises a plurality of chuck elastic columns 2122, and a gap is reserved between every two chuck elastic columns 2122. When the collet upper sleeve 213 is stationary, the top of the plurality of collet spring posts 2122 is clamped. When the collet upper sleeve 213 is moved a second predetermined distance away from the top of the collet body 212, the top of the plurality of collet spring posts 2122 expands. A second return spring 214 is further arranged between the upper clamp sleeve 213 and the clamp body 212, the bottom end of the second return spring 214 is clamped with the top end of the connecting part 22, the top end of the second return spring 214 is clamped with the upper clamp sleeve 213, and when the upper clamp sleeve 213 is static, the second return spring 214 keeps a return state. The second return spring 214 is in a compressed state when the collet upper sleeve 213 is moved away from the top of the collet body 212.
The embodiment of the application has the implementation principle that the clamping head 21 is used for clamping and fixing a workpiece, when the workpiece needs to be fixed, the clamping head upper sleeve 213 is only required to be moved to a second preset distance in a direction away from the top of the clamping head body 212, so that the inverted trapezoidal cylindrical structure 2121 at the top of the clamping head body 212 is separated from the clamping head upper sleeve 213, the top of the clamping head elastic column 2122 can be opened, the workpiece is conveniently placed, and after the workpiece is placed, the clamping head upper sleeve 213 is loosened, and the top of the clamping head elastic column 2122 is clamped, so that the workpiece is clamped and fixed. The second reset spring 214 resets the upper chuck sleeve 213, and when the upper chuck sleeve 213 is loosened after the workpiece is fixed, the second reset spring 214 resets the upper chuck sleeve 213, so that the tops of the plurality of elastic chuck posts 2122 clamp the workpiece, and the convenience of chuck use is improved.
In a preferred embodiment, in order to improve the tightness of the interior of the chuck structure, a sealing ring 224 is further provided at the connection portion between the chuck assembly 2 and the spindle assembly 1 according to the embodiment of the present application, and the sealing ring 224 is installed at the position where the connection portion 22 is inserted into the spindle body 11. In order to improve the corrosion resistance of the top of the chuck body 212, the top of the chuck body 212 is made of tungsten steel, so that corrosion of materials such as rosin, tin and the like can be effectively prevented.
As shown in fig. 6, a plurality of air holes 2111 are formed in the top of the chuck top core 211 according to the embodiment of the application, and the air holes 2111 are used for cooling and blowing air inside the chuck portion 21, particularly the chuck portion. Considering that the iron powder of the magnetic core generated by the chuck assembly 2 after the surface-mounted inductor magnetic core is clamped in the winding production process for a long time remains in the chuck assembly 2, the inner air blowing holes 2111 can be used for automatically cleaning the chuck assembly, manual operation can be replaced, and cleaning efficiency is ensured. Meanwhile, the situations that when soldering tin is clamped on a chip patch inductor, the product is subjected to high temperature to cause dark cracking and breakage of the product due to the fact that the temperature of the soldering tin reaches about 500 ℃, and the product has obvious marks due to the fact that rosin smoke mould generated during soldering tin adheres to the inside of a chuck are considered. At this time, the product can be cooled down by using breeze through the cooling blowholes 2111 under soldering tin or other high Wen Changjing, so that the problems that mould of loose cigarettes adheres to the inside of the chuck and the like are solved, and meanwhile, the problems of dark cracking, breakage and the like of the product caused by high temperature are avoided, thereby effectively improving the qualification rate of the product.
As shown in fig. 2 and 6, a second connecting groove 2123 is formed at the connection between the chuck body 212 and the connecting portion 22, and a plurality of second connecting pieces 223 penetrate through the connecting portion 22 and are clamped in the second connecting groove 2123, so that the connecting portion 22 is fixedly connected with the chuck body 212.
In the embodiment of the application, the limiting ring 16 is fixedly connected with the main shaft body 11 through the first connecting groove 112 and the first connecting piece 161, and the connecting part 22 is fixedly connected with the chuck body 212 through the second connecting groove 2123 and the second connecting piece 223, so that the whole structure is convenient to detach and install, and the convenience of assembling the chuck structure is improved.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore, all equivalent changes according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.