CN117066930A

CN117066930A - Processing method and special equipment for electric tool head shell

Info

Publication number: CN117066930A
Application number: CN202311207936.7A
Authority: CN
Inventors: 辛华君; 王黎; 朱红生; 詹勇钢; 施世平
Original assignee: Zhejiang Huafeng Electric Tools Co Ltd
Current assignee: Zhejiang Huafeng Electric Tools Co Ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2023-11-17

Abstract

The invention discloses a processing method and special equipment for a machine head shell of an electric tool. The machining method adopts the rapid locking clamp to realize multidirectional accurate positioning and firm locking of the machine head shell, and machining accuracy is greatly improved. The special equipment integrates a loading and unloading system, a quick locking clamp and a multi-axis machining system, and realizes automatic machining of the machine head shell. The quick locking clamp adopts modularization and linkage design, so that the locking action is quick and accurate, and the processing requirement is met. In particular, the design of the elastic ring and the enclasping mechanism can realize accurate locking on the machine head shell and carry out self-adaptive adjustment on the size error. The whole set of scheme realizes the efficient, accurate and automatic processing of the machine head shell, and greatly improves the processing quality and efficiency.

Description

Processing method and special equipment for electric tool head shell

Technical Field

The invention belongs to the technical field of machining of electric tool accessories, and particularly relates to a high-efficiency accurate machining method and special machining equipment for a machine head shell of an electric tool.

Background

Fig. 3 shows a schematic structure of a nose housing 01 of an angle grinder in the prior art. As typical power tool housings, nose housings of other types of power tools such as grooving machines, marble cutting machines, power wrenches, and the like have certain similarities in structural design to housings of angle grinders.

Specifically, although the housings of these different power tools are not identical, a certain unified idea is adopted in design, such as providing standard spindle holes, mounting holes, rotor holes and the like for mounting general components, and providing replaceable shields on the sides. The design idea ensures that the shells of different types of electric tools are uniform in structure to a certain extent, and is convenient for production and processing.

The machine head shell 01 of the electric tool generally comprises a standard main shaft hole 011, a mounting hole 012, a rotor hole 013 and other interfaces for mounting general components such as a motor, a speed reducer, a control circuit and the like, wherein a plurality of distributed assembly holes 014 are arranged on the periphery of the rotor hole 013, and blind holes 015 are symmetrically arranged on two sides of the machine head shell 01.

At present, the processing of the machine head shell mainly adopts the following two methods:

1. a multi-working procedure processing method with different working positions. The method needs to carry out station transfer and workpiece clamping for a plurality of times, and processing of one workpiece needs to be completed in different stations in a divided manner, so that the efficiency is low.

The combined procedure is a step processing method. According to the method, various tools can be used in one clamping, but a large number of independent locking devices are needed, each device needs to be independently operated, and the operation complexity is increased.

Both of the above-mentioned processing methods have problems of low efficiency and complicated operation. Along with the continuous increase of production demand, development of an integrated processing scheme is needed, so that requirements of quick positioning, a small number of locking points, simple operation and the like can be met, and the processing efficiency is greatly improved.

Disclosure of Invention

The invention aims at the problems and provides a high-efficiency and accurate processing method and equipment for a machine head shell of an electric tool, which are characterized in that a quick locking clamp with multi-azimuth locking functions of enclasping, jacking and side pressing is used for realizing accurate positioning and firm locking of the machine head shell, so that each coordinate point on the shell can be accurately processed by a multi-axis processing system.

The invention aims at realizing the following technical scheme: a method of machining a hand piece housing for an electric tool, comprising the steps of:

a) Sequentially placing the machine head shells to be processed into symmetrical processing stations in special processing equipment by using an upper and lower feeding mechanism;

b) Starting a quick locking clamp in special equipment to synchronously lock the machine head shell in multiple directions;

c) Driving the quick locking clamp to drive the machine head shell to turn, and simultaneously enabling machining systems arranged in different directions to process machining points on the corresponding shell;

d) After the machining is finished, loosening the rapid locking clamp, and sequentially taking out the machined machine head shells by the feeding and discharging mechanism;

wherein, quick locking anchor clamps adopt integrated modularized design, include: the device comprises a frame body, two symmetrical processing stations, two multidirectional locking devices on two sides and a bottom driving mechanism.

Preferably, the multi-aspect locking device comprises: the device comprises a holding mechanism for holding the upper part, a pushing mechanism for driving the holding mechanism, a swinging mechanism for driving the pushing mechanism, a transmission mechanism for transmitting power, a jacking mechanism for jacking the bottom and a side pressing mechanism for pressing the side surface. The beneficial effects are that: ensure that the machine head shell can be firmly locked in a plurality of directions, and improve the processing precision.

Preferably, the clasping mechanism includes:

an elastic ring embedded in the mounting hole of the enclasping piece; the locking pin is inserted into the inner hole of the elastic ring; and a supporting plate fixed on the inner side of the upper end surface of the frame body. The beneficial effects are that: ensure the stability and safe enclasping of the upper end of the machine head shell.

Preferably, the pushing mechanism is arranged outside the enclasping mechanism, and comprises: the pushing block is vertically fixed at the upper edge of the sliding block; the middle slotted hole is slidably arranged on the slide block on the guide rail at the outer side of the frame body; one end of the locking column is movably inserted into the guide hole of the frame body, and the other end of the locking column is fixed on the sliding block; and a return spring sleeved on the locking column. The beneficial effects are that: allowing for dynamic adjustment of the position of the clasping mechanism to accommodate handpiece housings of different sizes and shapes.

Preferably, the swing mechanism includes: a swing arm for changing the key component of the power direction by swinging up and down; the device comprises a sliding block, a linkage rod, a mounting sleeve, a fixed mounting seat, a sliding block, a sliding rod and a sliding rod, wherein one end of the linkage rod is hinged with the sliding block, and the other end of the linkage rod is connected with the upper end of the sliding arm; the supporting seat is fixed on the fixed mounting seat; and the turning block is fixed in the swing arm and is provided with a spiral slotted hole. The beneficial effects are that: the flexible conversion of the power direction is realized, and the versatility of the equipment is enhanced.

Preferably, the transmission mechanism includes: the device comprises a transmission shaft, a shaft sleeve, a driving gear, a pressing spring and an eccentric wheel; the middle part of the transmission shaft is a worm section, the two ends of the transmission shaft are optical axis sections, the outer side of the transmission shaft is a spline shaft section, and the end head of the transmission shaft is a round rod section; the transmission shaft is rotatably fixed on the fixed mounting seat through round rod sections at two ends and can slidably pass through the shaft hole of the sliding block; the shaft sleeve is sleeved on the outer sides of the round rod sections at the two ends of the transmission shaft, and slides through the left side hole and the right side hole of the frame body together with the transmission shaft to respectively abut against the sliding block and the driving gear; the driving gear is provided with a spline slot hole, can be sleeved on a spline section of the transmission shaft in a sliding way to acquire power, and can also break away from the spline section to disconnect transmission; the pressing spring is sleeved between the spline section and the optical axis section and can push the driving gear to be separated from the spline section; the eccentric wheel is provided with teeth on the side opposite to the driving gear, and can be selectively meshed to obtain power or separated to disconnect transmission. The beneficial effects are that: ensuring that power can be efficiently transferred from the source to the various components for stable and continuous operation.

Preferably, the eccentric wheel is provided with a solid disk on the short diameter side and a hollow disk on the long diameter side. The beneficial effects are that: an effective power conversion mode is provided, so that the equipment is more stable and efficient.

Preferably, the jacking mechanism comprises a lifting platform, a guide sliding column, a jacking spring, a rocking plate and a guide roller; the guide sliding column is fixed on the bottom plate of the frame body, and the lifting platform is sleeved on the guide sliding column in a sliding manner; the jacking spring is arranged between the lifting platform and the frame body and sleeved on the guide sliding column; the rocking plates are fixed on two sides of the lifting platform in a turnover way and are matched with the bottom of the station; the guide roller is arranged on the upper side of the lifting platform and is matched with the eccentric wheel; the eccentric wheel drives the guide roller and the lifting platform to move up and down, and the rocking plate is pressed to realize jacking. The beneficial effects are that: ensure that the machine head shell is evenly and stably supported from the lower part, and enhance the locking effect.

Preferably, the side pressure mechanism comprises a turbine, a screw shaft with one end provided with left threads and the other end provided with right threads, a pushing block and a pressing plate, wherein the turbine is fixed at the middle section of the screw shaft; the threads at the two ends of the screw shaft are opposite to each other, so that the pushing block is driven to move in the sleeve; the pushing block fixes the pressing plate and presses the workpiece. The beneficial effects are that: the machine head shell is uniformly and stably pressed from the side surface, and the stability during processing is ensured.

Preferably, the workflow in which the clamp is rapidly locked is as follows:

s1) under the action of a power source, the lower end of the swing arm is pushed out outwards, and the upper end of the swing arm is turned inwards;

s2) the upper end of the swing arm turns inwards to push the sliding blocks at two sides to move inwards along the guide rail;

s3) locking columns fixed by sliding blocks at two sides are inserted into positioning holes at two sides of the machine head shell inwards, so that accurate positioning is realized;

s4) simultaneously, pushing blocks on the sliding blocks at two sides can push the enclasping piece to enclasp the upper edge of the machine head shell, enclasping force can be adjusted through the elastic ring, and size errors of the machine head shell are counteracted;

s5) the sliding block continuously pushes the shaft sleeve inwards to push the driving gear into the spline shaft section to be meshed with the eccentric wheel;

s6) the direction changing block moves along with the lower end of the swing arm and is matched with the threaded section of the transmission shaft to push the transmission shaft to rotate, and the transmission shaft and the swing arm have a transitional idle gear period;

s7) the transmission shaft sequentially transmits power to the driving gear and the eccentric wheel;

s8) the eccentric wheel drives the lifting platform to move downwards and prop against the machine head shell from the lower part;

s9) the transmission shaft drives the turbine and the screw shaft to rotate through the worm;

s10) the screw shaft drives the pushing block and the pressing plate to prop against the machine head shell from the rear;

s11) the locking column, the clasping piece, the rocking plate and the pressing plate act in multiple directions to quickly and firmly lock the machine head shell;

s12) after the machining is finished, the power disappears, and the spring action drives each part to reset sequentially, so that the whole machining flow is completed.

The beneficial effects are that: an operator or programmer is provided with a clear and continuous step ensuring that each process is performed in a predetermined manner.

The present invention also provides a special processing apparatus for the above problems, comprising: the device comprises a device frame body, a loading and unloading mechanism and a processing system which are arranged on the device frame body, and a clamp is rapidly locked. Integrating all necessary components provides a complete and efficient tooling solution for the user.

In summary, compared with the prior art, the invention has the following advantages:

the invention provides a novel efficient and accurate machining technical scheme for a machine head shell, which comprises a machining method and special equipment. The machining method adopts the rapid locking clamp to realize multidirectional accurate positioning and firm locking of the machine head shell, and machining accuracy is greatly improved. The special equipment integrates a loading and unloading system, a quick locking clamp and a multi-axis machining system, and realizes automatic machining of the machine head shell. The quick locking clamp adopts modularization and linkage design, so that the locking action is quick and accurate, and the processing requirement is met. In particular, the design of the elastic ring and the enclasping mechanism can realize accurate locking on the machine head shell and carry out self-adaptive adjustment on the size error. The whole set of scheme realizes the efficient, accurate and automatic processing of the machine head shell, and greatly improves the processing quality and efficiency.

Drawings

FIG. 1 is a schematic general construction of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded view of a portion of the present invention;

FIG. 4 is an exploded view of a portion of a part at another angle in accordance with the present invention;

FIG. 5 is a schematic view of a portion of the construction of the clasping mechanism and the pushing mechanism;

FIG. 6 is a schematic diagram of a power source configuration;

FIG. 7 is an exploded view of a portion of a multi-aspect locking device;

fig. 8 is a flow chart of the operation of the multi-aspect locking device.

The marks in the figure:

the machine head comprises a machine head shell 01, a power source 02, a special machining device 03, a loading and unloading mechanism 04, a quick locking clamp 05, a machining system 06, a main shaft hole 011, a mounting hole 012, a rotor hole 013, an assembly hole 014, a blind hole 015, a frame body 1, a guide groove 12, a guide rail 13, a sleeve beam 14, a connecting rod 141, a sleeve 142, a base 15, a connecting piece 16, a multi-directional locking device 2, a holding mechanism 21, a holding piece 211, an elastic ring 212, a locking pin 213, a supporting plate 214, a pushing mechanism 22, a pushing block 221, a sliding block 222, a locking column 223, a restoring spring 224, a swinging mechanism 23, a swinging arm 231, a linkage rod 232, a mounting sleeve 233, a fixed mounting seat 234, a supporting seat 235, a turning block 236, a transmission mechanism 24, a transmission shaft 241, a shaft sleeve 242, a driving gear 243, a pressing spring 244, an eccentric wheel 245, a pressing mechanism 25, a lifting platform 251, a guide sliding column 252, a swinging plate 254, a guide roller 255, a side pressing mechanism 26, a turbine 261, a screw shaft 262, a pushing block 263, a pressing mechanism 3, a moving block 31, a biasing wheel 32, a swinging plate 33, a cam 33, a fixed plate 34 and a 35.

Detailed Description

The invention is further described below with reference to the embodiments shown in all the drawings:

example 1

The embodiment provides a high-efficiency accurate processing method for a machine head shell of an electric tool, which mainly comprises the following steps:

step one, sequentially placing two machine head shells 01 to be processed into symmetrical processing stations in special processing equipment 03 by using a loading and unloading mechanism 04. The loading and unloading mechanism 04 may be an automation device such as a mechanical arm.

And step two, starting a quick locking clamp 05 in the special processing equipment 03 to synchronously lock the two machine head shells 01 in multiple directions. The specific locking sequence is that the side pressing mechanism is utilized to position the shell at two sides, and then the bottom pressing mechanism and the upper enclasping mechanism are synchronously linked to realize rapid omnibearing locking of the shell.

And step three, driving the quick locking clamp 05 to drive the shell to turn, so that the processing systems 06 arranged in different directions correspond to processing points on the shell and perform simultaneous or sequential processing. The machining system 06 is a multi-axis linkage machining power head assembly.

And step four, after the processing is finished, the quick locking clamp 05 is driven to be loosened, and the feeding and discharging mechanism 04 sequentially takes out the two processed shells to complete a complete processing flow.

The special processing equipment 03 comprises main components such as a loading and unloading mechanism 04, a quick locking and quick locking clamp 05, a processing system 06 and the like. The rapid locking clamp 05 adopts an integrated design and comprises a frame body 1, two symmetrical processing stations, a multidirectional locking device 2 on two sides, a driving mechanism 3 on the bottom and the like. The design realizes the rapid and accurate positioning and locking of the workpiece.

Fig. 4-5 show the main structure of the frame body 1, which adopts a U-shaped design, and auxiliary positioning mechanisms such as guide rails, connecting rods and the like are assembled in the frame body.

Specifically, the frame body 1 is composed of two side vertical plates and a bottom plate, guide grooves 12 are symmetrically fixed below, guide rails 13 are symmetrically arranged on the outer sides of the two side vertical plates, and two groups of sleeve beams 14 are transversely arranged in the middle of the inner side. Each ferrule beam 14 contains 2 links 141 and a ferrule 142. The bottom is provided with a base 15 which is fixed below the frame body 1 through a connecting piece 16 and is used for assembling a multi-station rotary table to realize conversion of different processing directions. The multidirectional locking devices 2 are arranged at two sides of the frame body 1.

Fig. 4-5 show the internal structure of the multi-aspect locking device 2. It comprises a holding mechanism 21 for holding the upper part, a pushing mechanism 22 for driving the holding mechanism 21, a swinging mechanism 23 for driving the pushing mechanism 22, a transmission mechanism 24 for transmitting power, a pushing mechanism 25 for pushing the bottom, and a side pressing mechanism 26 for pressing the side. These mechanisms work cooperatively to realize the omnibearing fast locking of the casing.

The enclasping mechanism 21 is arranged on the upper part of the frame body 1 and enclasps the upper edge of the machine head shell. The structure comprises:

1) A clasping member 211 for directly contacting the upper edge of the clasping housing;

2) An elastic ring 212 embedded in the mounting hole of the clasping member 211, which is made of a flexible material and is deformable when being pressed, so as to provide an adjusting space for the clasping member;

3) The locking pin 213 is inserted into the inner hole of the elastic ring 212, and rotationally fixes the holding piece 211 on the upper end surface of the frame body 1;

4) The supporting plate 214 is fixed on the inner side of the upper end surface of the frame body 1, and the supporting and holding piece 211 keeps the working height.

The deformed elastic ring 212 provides a fine tuning space for its advancement when the hug 211 is pushed by the pushing mechanism 22.

The pushing mechanism 22 is arranged outside the enclasping mechanism 21 and drives the enclasping mechanism to work, and mainly comprises:

1) The pushing block 221 is vertically fixed at the upper edge of the sliding block 222 and directly pushes the holding piece 211;

2) A sliding block 222, the middle slotted hole is slidably arranged on the outer guide rail 13 of the frame body 1;

3) A locking column 223 having one end movably inserted into the guide hole of the frame body 1 and the other end fixed to the slider 222;

4) A return spring 224, which is sleeved on the locking post 223.

The front end of the locking column 223 is conical and can be inserted into a positioning hole of the shell to realize accurate positioning.

As shown in fig. 3, the swing mechanism 23 mainly includes the following parts:

1. a swing arm 231 for changing a key component of a power direction by swinging up and down;

2. a linkage rod 232, one end of which is hinged with the sliding block 222, and the other end of which is connected with the upper end of the swing arm 231, for transmitting power;

3. the mounting sleeve 233 is rotatably mounted on the middle section of the linkage rod 232;

4. a fixed mounting seat 234 fixed on the side of the vertical plate of the frame 1 for mounting the whole swing mechanism;

5. a support base 235 fixed to the fixed mount 234;

6. a direction changing block 236, which is fixed below the swing arm 231 and has a spiral slot hole, changes the movement mode.

The working principle is that the lower end of the swing arm 231 is pushed to move outwards to generate an inward lever effect, and the linkage rod 232 is driven to drive the mounting sleeve 233 and the transmission shaft 241 to rotate. The arc motion of the swing arm 231 is converted into linear motion by the spiral slot of the turning block 236, and then the angular motion of the transmission shaft 241 is converted. And finally drives the top pressing mechanism 25 and the side pressing mechanism 26 to work.

As shown in fig. 5, the transmission mechanism 24 is composed of a transmission shaft 241, a sleeve 242, a drive gear 243, a pressing spring 244, an eccentric 245, and the like.

The middle part of the transmission shaft 241 is a worm section, the two ends are optical axis sections, the outer side is a spline shaft section, and the end is a round rod section. One end of the round rod is provided with a thread groove matched with the turning block 236 in a threaded manner.

The transmission shaft 241 is rotatably fixed to the fixed mount 234 by the both end round bar sections and slidably passes through the shaft hole of the slider 222.

The shaft sleeve 242 is sleeved on the outer sides of the round rod sections at the two ends of the transmission shaft 241, and slides through the holes at the left side and the right side of the frame body 1 together with the transmission shaft 241, and respectively abuts against the sliding block 222 and the driving gear 243.

The driving gear 243 is provided with a spline groove hole, can be slidably sleeved on a spline section of the transmission shaft 241 to obtain power, and can also be separated from the spline section to disconnect transmission.

The pressing spring 244 is sleeved between the spline section and the optical axis section and can push the driving gear 243 to be separated from the spline section. The springs may be replaced by electromagnets or pneumatic mechanisms.

The eccentric wheel 245 is toothed on the opposite side of the drive gear 243, and can be selectively engaged to obtain power or disengaged to disconnect transmission. In order to allow the eccentric 245 to rest in a desired position without load, its short diameter side is provided as a solid disk and its long diameter side is provided as a hollow disk, the hollow side of which is maintained in an upward state in a free state by the action of gravity.

As shown in fig. 5, the pressing mechanism 25 is composed of a lifting platform 251, a guide strut 252, a pressing spring (not shown), a rocker plate 254, and a guide roller 255:

1. the guide slide column 252 is fixed on the bottom plate of the frame body 1, and the lifting platform 251 is slidably sleeved on the guide slide column 252.

The top pressure spring is arranged between the lifting platform 251 and the frame body 1 and sleeved on the guide sliding column 252.

The rocking plates 254 are rotatably fixed to both sides of the rising platform 251 and cooperate with the bottom of the station.

The guide roller 255 is installed at an upper side of the elevating platform 251 to be engaged with the eccentric 245.

The eccentric wheel 245 drives the guide roller 255 and the lifting platform 251 to move up and down, and the rocking plate 254 is pressed to realize jacking.

Alternative mechanisms in the jacking mechanism 25:

A. the guide slide column can be replaced by a linear guide rail;

B. the top pressure spring can be replaced by an air cylinder or an oil cylinder;

C. the rocking plate can be replaced by a connecting rod mechanism driven by a motor.

As shown in fig. 5, the side pressure mechanism 26 is composed of a turbine 261, a screw shaft 262 with one end threaded left and the other end threaded right, a push block 263, and a pressing plate 264:

1. the turbine 261 is fixed to the middle section of the screw shaft 262.

The screw shaft 262 has opposite threads at both ends, which drive the push block 263 to move in the sleeve 142.

The pushing block 263 fixes the pressing plate 264 to press the workpiece.

The screw shaft 262 is positioned unchanged, ensuring engagement of the turbine 261.

Alternative mechanisms:

A. the turbine can be replaced by a gear motor or the like;

B. the screw can be replaced by rack or gear transmission;

C. the pressing plate can be replaced by directly pressing by an air cylinder.

As shown in fig. 6, the driving mechanism 3 is mainly composed of a moving block 31, a biasing wheel 32, a cam 33, a fixed plate 34, a swing arm 35, and a power source 02:

1. the moving block 31 is slidably installed in the guide groove 12, and its head is hinged to the lower end of the swing arm 231 by a cross bar, and its tail is in contact with the periphery of the biasing wheel 32.

The biasing wheel 32 is mounted on the upper end surface of the fixed plate 34 to be closely attached to the side surface of the cam 33.

The cam 33 is mounted coaxially with the biasing wheel 32 on the upper end face of the fixed plate 34, and they are held in close abutment by torsion springs.

One end of the swing arm 35 is fixedly connected with the bottom of the cam 33 through a main shaft, and the other end is hinged with the output shaft of the power source 02.

The expansion and contraction of the output shaft of the power source 02 drives the swing arm 35 to swing, and then drives the cam 33 to rotate.

The cam 33 drives the biasing wheel 32 to rotate, and the biasing wheel 32 pushes the moving block 31 to move in the guide groove 12.

Alternative mechanisms:

A. the moving block can be changed into a cylinder to directly push to realize locking;

B. the offset wheel and the cam can be replaced by a linkage rod mechanism;

C. the power source may be replaced by a motor or a cylinder.

The swing arm can also be replaced by a crank slider mechanism.

Referring to all the drawings, after the machine head shell 01 is placed at the processing station, the work flow of the locking clamp is as follows:

1. the power source 02 is started, and the output shaft drives the swing arm 35 to swing and rotate.

The rotation of the swing arm 35 rotates the cam 33 via the spindle.

The cam 33 rotates to rotate and expand outwardly with the biasing wheel 32 in close engagement therewith.

The expansion of the biasing wheel 32 pushes the motion block 31 against its periphery to move outwards.

The moving block 31 moves outward to push the lower end of the swing arm 231 outward and the upper end turns inward.

The upper end of the swing arm 231 is turned inwards to push the two side sliders 222 to move inwards along the guide rail 13.

Locking columns 223 fixed by the sliding blocks 222 on two sides are inserted into positioning holes on two sides of the handpiece shell 01 inwards, so that accurate positioning is realized.

Meanwhile, the pushing blocks 221 on the sliding blocks 222 on two sides can push the clasping piece 211 to clasp the upper edge of the machine head shell 01, and the clasping force can be adjusted through the elastic ring 212 to counteract the size error of the machine head shell 01.

The slide 222 continues to push the sleeve 242 inwardly pushing the drive gear 243 into the splined shaft segment for engagement with the eccentric 245.

The direction-changing block 236 moves along with the lower end of the swing arm 231, cooperates with the threaded section of the transmission shaft 241, and pushes the transmission shaft 241 to rotate, and the two have a transitional idle gear period.

The drive shaft 241 transmits power to the drive gear 243 and the eccentric 245 in sequence.

The eccentric wheel 245 drives the lifting platform 251 to move downwards and push against the machine head shell 01 from below.

The transmission shaft 241 also rotates the worm wheel 261 and the screw shaft 262 through the worm.

The screw shaft 262 drives the push block 263 and the pressing plate 264 to push against the head housing 01 from the rear.

The locking column 223, the clasping piece 211, the rocking plate 253 and the pressing plate 264 act in multiple directions to quickly and firmly lock the handpiece housing 01.

After the processing is finished, the power disappears, and the spring action drives each part to reset in sequence, so that the whole processing flow is completed.

Example 2

The structure and working principle of the machine head shell clamp of the embodiment are basically the same as those of the embodiment 1, and the transmission mode of the locking mechanism is mainly improved.

The rocker arm assembly and the pushing assembly in the locking mechanism are the same as those in the embodiment 1. The improvement is that:

1. the transmission assembly adopts hydraulic transmission and comprises a hydraulic oil tank, a hydraulic pump, a motor, an oil pipe, a valve and the like.

The actuating mechanisms in the upper top assembly and the rear top assembly are changed into hydraulic cylinders which are respectively connected with a hydraulic system.

Under the control of the transmission component, the upper hydraulic cylinder and the lower hydraulic cylinder can synchronously or staggeredly move so as to realize the locking of the upper direction and the lower direction of the machine head shell.

Thus, the accurate control and flexible adjustment of power are realized through hydraulic transmission, and the structure is more compact.

Example 3

The structure and working principle of the handpiece housing clamp of this embodiment are also basically the same as those of embodiment 1, and the design of the positioning mechanism is mainly improved.

Wherein, locking mechanism has increased in addition to the locating pin post in addition:

1. two groups of bevel gear positioning modules with pneumatic springs are arranged above two sides of the frame.

The two groups of intermittent lifting guide rod components are arranged below the two sides of the frame.

When the machine head is in operation, after the action of the locking mechanism is finished, the upper group of positioning modules and the lower group of positioning modules respectively face the upper end face and the lower end face of the machine head shell, so that the accurate positioning of the end face profile is realized.

Therefore, the positioning accuracy and the locking reliability of the machine head shell can be further improved by increasing the end face positioning.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A method of machining a hand piece housing for an electric tool, comprising the steps of:

2. The method of claim 1, wherein the multi-aspect locking device comprises: the device comprises a holding mechanism for holding the upper part, a pushing mechanism for driving the holding mechanism, a swinging mechanism for driving the pushing mechanism, a transmission mechanism for transmitting power, a jacking mechanism for jacking the bottom and a side pressing mechanism for pressing the side surface.

3. The method of claim 2, wherein the clasping mechanism comprises:

an elastic ring embedded in the mounting hole of the enclasping piece; the locking pin is inserted into the inner hole of the elastic ring; and a supporting plate fixed on the inner side of the upper end surface of the frame body.

4. A method of manufacturing according to claim 3, wherein the pushing mechanism is provided outside the clasping mechanism, comprising: the pushing block is vertically fixed at the upper edge of the sliding block; the middle slotted hole is slidably arranged on the slide block on the guide rail at the outer side of the frame body; one end of the locking column is movably inserted into the guide hole of the frame body, and the other end of the locking column is fixed on the sliding block; and a return spring sleeved on the locking column.

5. The method of claim 4, wherein the oscillating mechanism comprises: a swing arm for changing the key component of the power direction by swinging up and down; the device comprises a sliding block, a linkage rod, a mounting sleeve, a fixed mounting seat, a sliding block, a sliding rod and a sliding rod, wherein one end of the linkage rod is hinged with the sliding block, and the other end of the linkage rod is connected with the upper end of the sliding arm; the supporting seat is fixed on the fixed mounting seat; and the turning block is fixed in the swing arm and is provided with a spiral slotted hole.

6. The method of claim 5, wherein the transmission mechanism comprises: the device comprises a transmission shaft, a shaft sleeve, a driving gear, a pressing spring and an eccentric wheel; the middle part of the transmission shaft is a worm section, the two ends of the transmission shaft are optical axis sections, the outer side of the transmission shaft is a spline shaft section, and the end head of the transmission shaft is a round rod section; the transmission shaft is rotatably fixed on the fixed mounting seat through round rod sections at two ends and can slidably pass through the shaft hole of the sliding block; the shaft sleeve is sleeved on the outer sides of the round rod sections at the two ends of the transmission shaft, and slides through the left side hole and the right side hole of the frame body together with the transmission shaft to respectively abut against the sliding block and the driving gear; the driving gear is provided with a spline slot hole, can be sleeved on a spline section of the transmission shaft in a sliding way to acquire power, and can also break away from the spline section to disconnect transmission; the pressing spring is sleeved between the spline section and the optical axis section and can push the driving gear to be separated from the spline section; the eccentric wheel is provided with teeth on the side opposite to the driving gear, and can be selectively meshed to obtain power or separated to disconnect transmission.

7. The method of claim 6, wherein the eccentric is provided with a solid disk on a short diameter side and a hollow disk on a long diameter side.

8. The method of claim 7, wherein the jacking mechanism comprises an elevating platform, a guide strut, a jacking spring, a rocker plate, and a guide roller;

the guide sliding column is fixed on the bottom plate of the frame body, and the lifting platform is sleeved on the guide sliding column in a sliding manner;

the jacking spring is arranged between the lifting platform and the frame body and sleeved on the guide sliding column;

the rocking plates are fixed on two sides of the lifting platform in a turnover way and are matched with the bottom of the station;

the guide roller is arranged on the upper side of the lifting platform and is matched with the eccentric wheel;

the eccentric wheel drives the guide roller and the lifting platform to move up and down, and the rocking plate is pressed to realize jacking.

9. The method according to claim 8, wherein the side pressure mechanism comprises a turbine, a screw shaft with one end being left-handed and the other end being right-handed, a pusher block, a presser plate:

the turbine is fixed at the middle section of the screw shaft;

the threads at the two ends of the screw shaft are opposite to each other, so that the pushing block is driven to move in the sleeve;

the pushing block fixes the pressing plate and presses the workpiece.

10. The method of claim 9, wherein the workflow of the quick lock clamp comprises the steps of:

11. A special processing apparatus, comprising: the quick locking clamp of claim 1, a device frame, a loading and unloading mechanism arranged on the device frame and a processing system.