CN212704605U - Machining equipment for machining back plate - Google Patents

Abstract

The utility model discloses a processing equipment for backplate processing, include: a power source, and one or more processing assemblies connected to the power source; the processing assembly comprises: the driving shaft is connected with the power source, a first external thread is formed on the driving shaft, a lower outer circular groove is formed in the outer wall of the driving shaft and communicated with the first external thread, and the bottom surface of the first external thread at the communication position is lower than the bottom surface of the lower outer circular groove; the first machine shell is sleeved on the driving shaft; the first elastic positioning piece is arranged on the first shell, and one end of the first elastic positioning piece is abutted against the thread groove of the first external thread; and the processing cutter is arranged at one end of the driving shaft. The processing device has the advantages of stable work, low manufacturing cost and easy maintenance in the processing process, effectively reduces the production cost and improves the working efficiency compared with the processing of a processing center. The requirement of mass production of products is met.

Description

Machining equipment for machining back plate

Technical Field

The utility model relates to a display device parts machining field especially relates to a processing equipment for backplate processing.

Background

The stage LCD backlight module is still the mainstream display module scheme, the classic backlight scheme is that the stamping forming of galvanized steel sheet is used as the main strength structural member of module, can cover the plastic aluminum plate behind the backplate in the current structure again, this plastic aluminum plate is the plastic material and is the structure of main part both sides by the cladding of aluminium skin, the advantage is that intensity is good, the outward appearance can do various changes, seem very good feel, thickness can be done 2-3mm, so can save the plastic back cover, and satisfy experimental intensity, the shortcoming is that its processing mode can only cut off type blanking and through-hole and the processing of milling type.

According to the technical scheme that the existing aluminum-plastic plate serves as the back plate structure, the structure of the aluminum-plastic plate has the requirement of processing a plurality of counter bores, and after the existing processing of the plurality of counter bores is generally programmed by adopting a processing center, a milling cutter is controlled to process the counter bores one by one.

However, in the milling process of the machining center, only one hole can be machined, so that the machining efficiency is low, and the machining precision of the machining center is high, so that the production cost per minute is high, the production cost is high, and the output of millions and millions in the industry cannot be met.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art not enough, the utility model aims to provide a processing equipment for backplate processing can realize processing the counter bore on the aluminium-plastic panel through simple structure, replaces current machining center to process. The processing device has the advantages of stable work, low manufacturing cost and easy maintenance in the processing process, effectively reduces the production cost and improves the working efficiency compared with the processing of a processing center. The requirement of mass production of products is met.

The technical scheme of the utility model as follows:

a tooling apparatus for backing plate tooling, comprising:

a power source, and one or more processing assemblies connected to the power source; the processing assembly comprises:

the driving shaft is connected with the power source, a first external thread is formed on the driving shaft, a lower outer circular groove is formed in the outer wall of the driving shaft and communicated with the first external thread, and the tooth bottom surface of the first external thread at the communication position is lower than the groove bottom surface of the lower outer circular groove;

the first machine shell is sleeved on the driving shaft;

the first elastic positioning piece is arranged on the first shell, and one end of the first elastic positioning piece is abutted against the thread groove of the first external thread; and

and the machining cutter is arranged at one end of the driving shaft.

Further, the processing assembly further comprises:

the sleeve is sleeved on the driving shaft, and one end of the sleeve is provided with a first clamping and embedding part;

the first bevel gear is sleeved on the driving shaft in a sliding manner and is rotatably arranged in the first casing, and a second clamping and embedding part is arranged at one end, facing the sleeve, of the first bevel gear; the first clamping and embedding part is used for being meshed with the second clamping and embedding part and then fixedly connecting the sleeve and the first bevel gear;

a second bevel gear meshed with the first bevel gear;

the driven shaft is perpendicular to the driving shaft and provided with a second external thread, a left external circular groove is formed in the outer wall of the driven shaft and communicated with the second external thread, and the tooth bottom surface of the second external thread at the communication position is lower than the groove bottom surface of the left external circular groove;

the second shell is sleeved on the driven shaft; and

and the second elastic positioning piece is arranged on the second shell, and one end of the second elastic positioning piece is abutted against the thread groove of the second external thread.

Further, a first elastic limiting part is arranged on the outer wall of the driving shaft, a first limiting groove is formed in the inner wall of the driving shaft, and the first limiting groove is used for being embedded with the first elastic limiting part after the driving shaft moves to the machining depth;

the sleeve with the driving shaft sets up that slides, set up waist shape logical groove on the sleeve, first elasticity locating part wears to establish waist shape logical inslot.

Furthermore, a second elastic limiting part is arranged on the first casing, a plurality of second limiting grooves are formed in the outer wall of the sleeve at intervals, and the second elastic limiting part is used for being clamped in the second limiting grooves.

Further, a right outer circular groove is formed in the driven shaft, the right outer circular groove is formed in the outer wall of the driven shaft and is located at two ends of the second outer threads respectively, the right outer circular groove is communicated with the second outer threads, and the tooth bottom surface of the second outer threads is lower than the groove bottom surface of the right outer circular groove.

Furthermore, the processing equipment also comprises a bracket, the first shell and the bracket are arranged at intervals, and the second shell is fixedly connected to the bracket;

the second casing slides on and is provided with the slide bar, the one end fixed connection of slide bar is in on the first casing.

Furthermore, a third elastic limiting part is arranged on the second casing, a third limiting groove is formed in the outer wall of the driven shaft at intervals, and the third elastic limiting part is used for being clamped in the third limiting groove.

Further, an upper excircle groove is formed in the driving shaft, the upper excircle groove is formed in the outer wall of the driving shaft and is located at two ends of the first external thread respectively, the upper excircle groove is communicated with the first external thread, and the bottom surface of the first external thread is lower than the bottom surface of the upper excircle groove.

Furthermore, the processing equipment also comprises a plurality of connecting components, one end of each connecting component is connected with the processing component, and the other end of each connecting component is connected with the power source;

the connecting assembly includes:

the first universal coupler is connected with the driving shaft in the machining assembly;

the slippage shaft is connected with the first universal coupling;

sliding the sleeve; the sliding sleeve is sleeved on the sliding shaft, and the sliding shaft moves along the axial direction of the sliding sleeve;

and one end of the second universal coupling is connected with the sliding sleeve, and the other end of the second universal coupling is connected with the power source.

Further, the power source includes:

the motor is electrified and rotated to provide power;

the gear train, the gear train comprises a plurality of gears, the gear train is connected on the motor, a plurality of gears respectively with a plurality of in the gear train coupling assembling is connected.

The beneficial effect of this scheme: the utility model provides a processing equipment for backplate processing, this scheme in first elastic positioning element fix on first casing, when the driving shaft reverses in first casing, first external screw thread is rotatory, because the inlay card of first elastic positioning element, along the axial displacement of first external screw thread, the driving shaft stretches out outwards when making the driving shaft rotate, the driving shaft drives the processing cutter feed simultaneously and mills the work piece; when the milling tool moves to the lower excircle groove position, the driving shaft moves to a required milling depth position, the first elastic positioning piece reaches the top end of the first external thread, enters the lower excircle groove from the thread groove of the first external thread, and is milled at the depth position. When the milling is finished, the driving shaft rotates forwards, and because the bottom surface of the first external thread is lower than the bottom surface of the lower outer circular groove, the first elastic positioning piece can enter the first external thread along the thread groove profile of the first external thread to retract the driving shaft when the driving shaft rotates forwards, and then the processing cutter is driven to push out the milled counter bore. This in-process, through on the outer wall of driving shaft and with the lower excircle groove that first external screw thread is linked together, the tooth bottom surface of first external screw thread is less than the tank bottom surface of excircle groove down, can satisfy when first elastic positioning spare is arriving the end of first external screw thread, do not promote when initiative axial one direction is rotatory, the function that can retract again during the counter rotation to realize that the driving shaft moves the position stability when extreme displacement point position, with the requirement of satisfying the depth of working. Therefore, the counter bore on the aluminum-plastic panel can be machined through a simple structure, and the existing machining center is replaced. The processing device has the advantages of stable work, low manufacturing cost and easy maintenance in the processing process, effectively reduces the production cost and improves the working efficiency compared with the processing of a processing center. The requirement of mass production of products is met.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of a processing apparatus for processing a back plate according to the present invention;

fig. 2 is a schematic connection diagram of a processing assembly in an embodiment of the processing apparatus for processing a back plate according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a cross-sectional view of a processing assembly of a first embodiment of a processing apparatus for processing a back plate according to the present invention;

fig. 5 is a cross-sectional exploded view of a processing assembly of a first embodiment of the processing apparatus for processing a back plate according to the present invention;

fig. 6 is a feeding state diagram of a processing assembly of a first embodiment of the processing apparatus for processing a back plate according to the present invention;

fig. 7 is a drawing illustrating a tool retracting state of the processing assembly according to the first embodiment of the processing apparatus for processing a back plate of the present invention;

fig. 8 is a cross-sectional view of a processing assembly of a second embodiment of the processing apparatus for processing a back plate according to the present invention;

FIG. 9 is an enlarged view of portion B of FIG. 8;

fig. 10 is a cross-sectional exploded view of a processing assembly of a second embodiment of the processing apparatus for back plate processing according to the present invention;

fig. 11 is a longitudinal feeding state diagram of the processing assembly of the second embodiment of the processing apparatus for processing back plate according to the present invention;

fig. 12 is a diagram illustrating an engagement state of the processing assembly of the second embodiment of the processing apparatus for processing a back plate according to the present invention;

fig. 13 is a lateral feed state diagram of the processing assembly of the second embodiment of the processing apparatus for processing back plate according to the present invention;

fig. 14 is a diagram illustrating a transverse feed end state of a processing assembly according to a second embodiment of the processing apparatus for processing a back plate according to the present invention;

fig. 15 is a diagram of a transverse tool retracting state of a processing assembly of a second embodiment of the processing apparatus for processing a back plate according to the present invention;

fig. 16 is a drawing illustrating a state of the second embodiment of the processing assembly retracting state of the processing apparatus for processing a back plate according to the present invention.

The reference numbers in the figures: 100. a power source; 110. a motor; 120. a gear set; 200. processing the assembly; 210. a drive shaft; 211. a first external thread; 212. a lower outer circular groove; 213. a step; 214. an upper outer circular groove; 220. a first housing; 221. an upper housing; 222. a lower housing; 223. a first gear chamber; 224. a second gear chamber; 230. a first elastic positioning member; 231. a first set screw; 232. a first spring; 233. a first positioning pin; 240. a first elastic limiting part; 241. a first limit groove; 242. a second set screw; 243. a second spring; 244. a second positioning pin; 300. processing a cutter; 400. a support; 500. a connecting assembly; 510. a first universal coupling; 520. a slip axis; 530. sliding the sleeve; 540. a second universal coupling; 600. a sleeve; 601. a keyway; 602. a waist-shaped through groove; 603. a first engaging portion; 610. a first bevel gear; 611. a second engaging portion; 620. a second bevel gear; 630. a driven shaft; 631. a second external thread; 632. a left outer circular groove; 633. a right outer circular groove; 640. a second housing; 641. a slide bar; 650. a second elastic positioning member; 660. a second elastic limiting part; 661. a second limit groove; 662. a third screw; 663. a third spring; 664. positioning the ball; 670. a third elastic limiting part; 671. a third limiting groove; 700. a back plate.

Detailed Description

The utility model provides a processing equipment for backplate processing, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and lifts the example the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the present invention provides a processing apparatus for processing a back plate, which is used for processing a counter bore on a back plate 700, and includes a power source 100 and one or more processing assemblies 200 connected to the power source 100; one machining assembly 200 is used to machine one counterbore, and if there are multiple counterbores, multiple machining assemblies 200 may be used to machine. In this embodiment, the backboard 700 to be processed is located above the processing assembly 200 as a reference for conveniently describing the direction of the structure: the depth direction of the counter bore is taken as the vertical direction, and the extending direction of the waist-shaped hole machined on the back plate 700 is taken as the left-right direction.

As shown in fig. 1 and 2, the processing assembly 200 includes: a driving shaft 210, a first housing 220, a first elastic positioning member 230, and a processing tool 300, wherein the processing tool 300 in this embodiment is a milling cutter; the driving shaft 210 is connected to the power source 100, as shown in fig. 3, a first external thread 211 is formed on the driving shaft 210, a lower outer circular groove 212 is formed in the outer wall of the driving shaft 210 and is communicated with the first external thread 211, and the bottom surface of the first external thread 211 at the communication position is lower than the bottom surface of the lower outer circular groove 212; the first housing 220 is sleeved on the driving shaft 210; the first elastic positioning element 230 is disposed on the first housing 220 and has one end abutting against the thread groove of the first external thread 211; the thread groove refers to a space between two adjacent teeth of the external thread, and the milling cutter is disposed at one end of the driving shaft 210.

The first elastic positioning piece 230 is fixed on the first machine shell, when the driving shaft 210 rotates reversely in the first machine shell, the first external thread 211 rotates, the driving shaft 210 moves along the axial direction of the first external thread 211 while rotating due to the clamping and embedding of the first elastic positioning piece 230, the driving shaft 210 extends outwards, and meanwhile, the driving shaft 210 drives the milling cutter to feed and mill a workpiece; when the driving shaft 210 moves to the position of the lower outer circular groove 212, the driving shaft 210 moves to a required milling depth position, the first elastic positioning piece 230 reaches the bottom end of the first outer thread 211 at the time, enters the lower outer circular groove 212 from the thread groove of the first outer thread 211, milling is performed at the depth position, as the tooth bottom surface of the first outer thread 211 at the communication position is lower than the groove bottom surface of the lower outer circular groove 212, the bottom surface of the lower outer circular groove 212 forms a step 213 by the tail end of the first outer thread 211, when the driving shaft 210 rotates reversely, the first elastic positioning piece 230 rotates to the step 213 position, the top end of the first elastic positioning piece 230 falls from the step 213 due to the elastic force, and thus when the driving shaft 210 rotates reversely, the first elastic positioning piece 230 can move in the lower outer circular groove 212 all the time. When the milling is completed, the driving shaft 210 rotates forward, because the bottom surface of the first external thread 211 is lower than the bottom surface of the lower external groove 212, when the driving shaft 210 rotates forward, at this time, the front end of the first elastic positioning piece 230 reaches the step 213 and is blocked by the step 213, and the side wall of the first elastic positioning piece 230 abuts against the side wall of the step 213, so that the first elastic positioning piece 230 moves along the side wall of the step 213, and further, the first elastic positioning piece 230 enters the first external thread 211 along the thread groove profile of the first external thread 211, so that the driving shaft 210 retracts, and the milling cutter is driven to exit from the counter bore. In the process, through on the outer wall of driving shaft 210 and with the lower excircle groove 212 that first external screw thread 211 is linked together, the tooth bottom surface of first external screw thread 211 is less than the tank bottom surface of lower excircle groove 212, can satisfy when first elastic positioning piece 230 is arriving first external screw thread 211's end, driving shaft 210 does not promote when rotatory to a direction, the function that can retract again during the counter rotation to realize that driving shaft 210 moves the position stability when extreme displacement point position, with the requirement of satisfying the machining depth. Therefore, the counter bore on the aluminum-plastic panel can be machined through a simple structure, and the existing machining center is replaced. The processing device has the advantages of stable work, low manufacturing cost and easy maintenance in the processing process, effectively reduces the production cost and improves the working efficiency compared with the processing of a processing center. The requirement of mass production of products is met.

As shown in fig. 4 and 5, a through hole is radially formed on the first housing 220, and the first elastic positioning element 230 is installed in the through hole, which specifically includes: a first positioning screw 231 screwed on the through hole and used for blocking the hole, a first spring 232 embedded in the hole, and a first positioning pin 233 abutted against the first spring 232. When the first elastic positioning piece 230 works, the top end of the first positioning needle 233 abuts against the tooth bottom of the first external thread 211 or the groove bottom of the lower external circular groove 212, and the first spring 232 provides elastic force, so that the first positioning needle 233 can fall to a lower position at the high position of the step 213.

An upper outer circular groove 214 is further formed in the driving shaft 210, the upper outer circular groove 214 is formed in the outer wall of the driving shaft 210 and located at two ends of the first outer thread 211 respectively, the upper outer circular groove 214 is communicated with the first outer thread 211, and the bottom surface of the first outer thread 211 is lower than the bottom surface of the upper outer circular groove 214.

The excircle groove 214 is arranged, the operating principle of the excircle groove can refer to the lower excircle groove 212, when milling is completed, the driving shaft 210 rotates positively, the first external thread 211 rotates, the first elastic positioning piece 230 is clamped in the first external thread 211, when the first elastic positioning piece 230 reaches the top of the first external thread 211, the first elastic positioning piece 230 enters the excircle groove 214 under the action of elasticity, and the front end of the first elastic positioning piece 230 abuts against the excircle groove 214, so that the driving shaft 210 stops rotating at the height. When the driving shaft 210 is reversely rotated, the first elastic positioning member 230 abutting against the lower outer circular groove 212 enters the screw groove of the first external screw 211 along the contour of the first external screw 211, so that the driving shaft 210 is lifted due to the rotation of the first external screw 211.

As shown in fig. 1 and 2, in the specific structure of the present embodiment: the processing equipment further comprises a support 400, the back plate 700 is located on the support 400, the driving shaft 210 penetrates through the support 400 and is fixedly connected with the milling cutter, and the milling cutter performs groove milling processing on the lower surface of the back plate. The power source 100 includes: a motor 110, and a gear set 120; a box body is arranged outside the gear set 120 to form a gear box, the gear set 120 is rotatably arranged in the box body, and the motor 110 is electrified and rotated to provide power; the gear set 120 is composed of a plurality of gear sets 120, the gear sets 120 are connected to the motor 110, and holes machined in the gear sets 120 according to actual requirements are formed by mutually meshing an input gear and a plurality of output gears with the same parameters, so that the same rotation direction and the same rotation speed of all the output gears can be ensured. The processing equipment further comprises a plurality of connecting assemblies 500, one end of each connecting assembly 500 is connected with the corresponding processing assembly 200, the other end of each connecting assembly 500 is connected with the corresponding power source 100, and specifically, a plurality of gears in the gear set 120 are respectively connected with the corresponding connecting assemblies 500. Thereby rotating through motor 110, driving a plurality of gears to rotate, pivoted gear drives coupling assembling 500 rotates. The rotating connecting assembly 500 drives the driving shaft 210 to rotate.

As shown in fig. 1 and 2, the specific structure of the connection assembly 500 in this embodiment includes: a first universal coupling 510, a slip shaft 520, a slip sleeve 530, and a second universal coupling 540; one end of the second universal coupling 540 is connected to the sliding sleeve 530, and the other end is connected to a gear in the power source 100; the sliding sleeve 530 is sleeved on the sliding shaft 520, and the sliding shaft 520 moves along the axial direction of the sliding sleeve 530; the sliding shaft 520 is connected with the first universal coupling 510; the first universal coupling 510 is connected to the driving shaft 210 of the machining assembly 200.

In this way, multi-directional non-coaxial rotation is achieved by the first and second universal couplings 510, 540. When the connecting assembly 500 provides power to the driving shaft 210, the driving shaft 210 extends and retracts in the up-and-down direction, and then the sliding shaft 520 also extends and retracts on the sliding sleeve 530 synchronously, so that the driving shaft 210 can still provide power to the driving shaft 210 when extending and retracting. In this embodiment, the sliding shaft 520 is a spline shaft, and the corresponding sliding sleeve 530 is a spline sleeve, that is, the sliding shaft 520 and the sliding sleeve 530 are in spline fit to realize axial sliding, but cannot rotate relatively, so that torque transmission is more stable.

As shown in fig. 4 and 5, the driving shaft 210 is disposed along a vertical direction, a first elastic limiting member 240 is disposed on an outer wall of the driving shaft 210, a first limiting groove 241 is disposed on an inner wall of the driving shaft 210, and an opening of the first limiting groove 241 is disposed by using an oblique opening, so that the first elastic limiting member 240 can be conveniently moved in and out. The first limiting groove 241 is used for clamping and embedding the first elastic limiting member 240 after the driving shaft 210 moves to the processing depth. In a specific structure, a through hole is radially formed on the driving shaft 210, and the structure of the first elastic limiting member 240 is the same as that of the first elastic positioning member 230, including: the second positioning screw 242, the second spring 243, and the second positioning pin 244, due to the extension and retraction of the driving shaft 210, the second positioning pin 244 can be pressed into different first limiting grooves 241 by the outer wall of the driving shaft 210, such as: when the second positioning pin 244 is located in the upper first limiting groove 241, it indicates that the milling cutter exits the processing of the counter bore, and when the second positioning pin 244 is located in the lower first limiting groove 241, it indicates that the milling cutter has been processed to the processing depth of the counter bore.

When the driving shaft 210 is inserted into the first external threads 211 by the first elastic positioning element 230, the driving shaft 210 is raised in the vertical direction, and when the driving shaft 210 is raised, the first elastic positioning element 240 slides along the inner wall of the first housing 220 due to the extrusion of the inner wall of the first housing 220 and the elastic force of the first elastic positioning element, and when the driving shaft 210 drives the milling cutter to be fed to the depth of the counter bore, the first elastic positioning element 240 is inserted into the first positioning groove 241, so that the position of the rotating shaft is defined, and a certain fixing force is provided, so that the milling cutter can be milled stably at the depth of the counter bore. The opening edge of the first limiting groove 241 in this embodiment is an inclined surface structure, that is, the first elastic limiting member 240 can slide in and out normally, and when the rotating shaft rotates forward, the driving shaft 210 retracts, so that the milling cutter retracts. The first elastic limiting member 240 is pushed out of the first limiting groove 241 by the elastic force.

Because the hole structures on the back plate are two, one is a straight hole and the other is a waist-shaped hole, the corresponding processing assembly 200 has different structures for the two different holes. Two specific examples are as follows:

example one

As shown in fig. 6 and 7, when the machining assembly 200 is used for machining straight holes, one structure of the machining assembly 200 is: on the basis of the above structure, the first housing 220 is fixedly connected to the bracket 400, so that the first housing 220 is fixedly disposed, and the driving shaft 210 extends and retracts in the first housing 220.

As shown in fig. 2 and 3, when the driving shaft 210 rotates reversely in the first housing, the first external thread 211 rotates, and due to the engagement of the first elastic positioning element 230, the driving shaft 210 moves along the axial direction of the first external thread 211 while rotating, the driving shaft 210 extends outward, and the driving shaft 210 drives the milling cutter to perform cutting and milling on a workpiece; when the driving shaft 210 moves to the lower outer circular groove 212 position, the driving shaft 210 moves to a desired milling depth position, and the first elastic positioning member 230 reaches the top end of the first external thread 211 and enters the lower outer circular groove 212 from the thread groove of the first external thread 211, and milling is performed at the depth position. When the milling is completed, the driving shaft 210 rotates forward, and since the bottom surface of the first external thread 211 is lower than the bottom surface of the lower external groove 212, when the driving shaft 210 rotates forward, the first elastic positioning element 230 positioning element enters the first external thread 211 along the thread groove profile of the first external thread 211, so that the driving shaft 210 retracts, and the milling cutter is driven to exit the milled counter bore. Thus, the processing of the straight hole is realized.

Example two

As shown in fig. 8, when the processing assembly 200 is used for processing a kidney-shaped hole, another structure of the processing assembly 200 is as follows: on the basis of the above structure, the processing assembly 200 further includes: sleeve 600, first bevel gear 610, second bevel gear 620, driven shaft 630, second housing 640, second elastic positioning piece 650. In this embodiment, the first housing 220 and the bracket 400 are disposed at an interval, the second housing 640 is fixedly connected to the bracket 400, that is, the second housing 640 is located at one side of the left and right directions of the first housing 220, a sliding rod 641 is slidably disposed on the second housing 640, and one end of the sliding rod 641 is fixedly connected to the first housing 220. So that the first housing 220 can slide in the left and right direction with respect to the second housing 640.

As shown in fig. 8, 9 and 10, in order to implement the function of the driving shaft 210 moving transversely in the left-right direction, the sleeve 600 is sleeved on the driving shaft 210, that is, the sleeve 600 can move up and down and rotate along the axial direction along with the driving shaft 210. Specifically, two connection modes of the sleeve 600 and the driving shaft 210 are provided, the first mode is: the sleeve 600 is directly fixed to the driving shaft 210 such that the sleeve 600 can axially move and rotate in synchronization with the driving shaft 210. In this embodiment, a second structure is adopted, and a second arrangement manner of the sleeve 600 and the driving shaft 210 is as follows: the inner wall of the sleeve 600 is provided with key teeth, the driving shaft 210 is provided with a key groove 601, the sleeve 600 is connected with the driving shaft 210 and then can synchronously rotate with the driving shaft 210 through the matching of the key groove 601 and the key teeth, the sleeve 600 is in non-fastening connection with the driving shaft 210 and can slide on the driving shaft 210, the outer wall of the sleeve 600 is provided with a waist-shaped through groove 602, and the first elastic limiting part 240 protrudes out of the waist-shaped through groove 602 and then abuts against the inner wall of the first housing 220. When the driving shaft 210 rotates in the reverse direction and rises, the first elastic limiting member 240 rotates and rises along with the driving shaft 210, and the sleeve 600 only rotates and does not move in the vertical direction. When the first elastic limiting member 240 rises to the top end of the kidney-shaped through slot 602, the sleeve 600 is driven, and the first elastic limiting member 240 continues to rise, so that the sleeve 600 is driven to rise. Similarly, when the driving shaft 210 rotates forward, the sleeve 600 will not move up and down at the beginning, and the first elastic limiting member 240 moves from the upper end to the lower end in the kidney-shaped through groove 602, and then drives the sleeve 600 to move down.

The first housing 220 is provided with a second elastic limiting part 660, the outer wall of the sleeve 600 is provided with second limiting grooves 661 at intervals, and the second elastic limiting part 660 is used for being clamped in the second limiting grooves 661. In a specific structure, a hole is radially formed in the first housing, the second elastic limiting member 660 is located in the hole, the second elastic limiting member 660 includes a third screw 662, a third spring 663 embedded in the hole, and a positioning ball 664 abutting against the third spring 663, and the corresponding second limiting groove 661 is configured as an annular groove. Because driving shaft 210 drives sleeve 600 along axial displacement, location ball 664 can be extruded to different second spacing inslot 661 by the outer wall of driving shaft 210, if: when the first limiting elastic member drives the sleeve 600 to descend and the positioning balls 664 are located in the second limiting groove 661 above, the sleeve 600 is stably maintained in a disengaged state with the first bevel gear 610, and when the first limiting elastic member drives the sleeve 600 to ascend and the positioning balls 664 are located in the second limiting groove 661 below, the sleeve 600 is stably maintained in a connected state with the first bevel gear 610.

As shown in fig. 10, in order to realize the connection between the sleeve 600 and the first bevel gear 610, a first clamping and embedding part 603 is provided at one end of the sleeve 600; the first bevel gear 610 is slidably sleeved on the driving shaft 210, so that the first bevel gear 610 does not move up and down along with the driving shaft 210, but can rotate along with the driving shaft 210. The first housing comprises an upper housing 221 and a lower housing 222 detachably connected with the upper housing 221; a first gear cavity 223 is formed in the upper housing 221 and at the joint of the upper housing 221 and the lower housing 222, and the first bevel gear 610 is accommodated in the gear cavity; thereby rotating the first bevel gear 610 at a fixed position within the first housing 220; a second snap-fit portion 611 is formed at one end of the first bevel gear 610 facing the sleeve 600. The first engagement portion 603 is configured to engage with the second engagement portion 611 and then fixedly connect the sleeve 600 and the first bevel gear 610. In a specific structure, the first engaging portion 603 is a first engaging tooth disposed around an upper portion of the sleeve 600, the second engaging portion 611 is a second engaging tooth engaged with the first engaging tooth, and the second engaging tooth is disposed around a lower portion of the first bevel gear 610. The first latch and the second latch form a spline connection mode.

A second gear cavity 224 is formed in an inner side wall of the upper housing 221, and the second bevel gear 620 is accommodated in the second gear cavity 224. The second bevel gear 620 is engaged with the first bevel gear 610 and the second bevel gear 620 is disposed perpendicular to the first bevel gear 610.

As shown in fig. 8 and 9, a driven shaft 630 is disposed in the second housing 640, the second housing 640 is sleeved on the driven shaft 630, and the driven shaft 630 rotates in the second housing 640; the driven shaft 630 and the driving shaft 210 are arranged perpendicularly, the outer wall of the driven shaft 630 is provided with a second external thread 631, the outer wall of the driven shaft 630 is provided with a left external circular groove 632 communicated with the second external thread 631, and the bottom surface of the second external thread 631 at the communication position is lower than the bottom surface of the left external circular groove 632. The second elastic positioning member 650 is disposed on the second housing 640, and has one end abutting against the thread groove of the second external thread 631.

Still seted up right excircle groove 633 on the driven shaft 630, right excircle groove 633 set up on the outer wall of driven shaft 630 and with left excircle groove 632 is located respectively the both ends of second external screw thread 631, right excircle groove 633 with second external screw thread 631 is linked together, and the intercommunication department the tooth bottom surface of second external screw thread 631 is less than the tank bottom surface of right excircle groove 633.

As shown in fig. 10, a third elastic limiting member 670 is disposed on the second housing 640, a third limiting groove 671 is disposed on an outer wall of the driven shaft 630 at an interval, and the third elastic limiting member 670 is configured to be embedded in the third limiting groove 671. The structure of the third elastic limiting member 670 is the same as that of the third elastic limiting member 670, and the function thereof can refer to the first elastic limiting member 240.

The working process of the machining assembly 200 in the second embodiment is as follows:

the feeding process of the milling cutter comprises the following steps:

as shown in fig. 11, the motor 110 rotates reversely, and drives the driving shaft 210 to rotate counterclockwise (rotate reversely) through the gear set 120 and the connecting assembly 500; when the driving shaft 210 rotates reversely, the first external thread 211 cooperates with the first positioning pin 233 of the first elastic positioning member 230 to make the driving shaft 210 drive the milling cutter to move upward synchronously. At this time, the key groove 601 of the sleeve 600 is matched with the key groove, so that the sleeve 600 is connected with the driving shaft 210, the sleeve 600 and the driving shaft 210 rotate synchronously, under the matching positioning of the second limiting groove 661 with a higher position and the positioning balls 664, the sleeve 600 is stably kept at a lower position, so that the first clamping and embedding part 603 on the sleeve 600 and the second clamping and embedding part 611 on the first bevel gear 610 are kept in a separated state, the first bevel gear 610 and the driving shaft 210 are not in tight fit, so the first bevel gear 610 does not rotate along with the driving shaft 210 at this time, the milling cutter at this time only carries out longitudinal feed milling, and the milling cutter does not carry out transverse movement.

As shown in fig. 12, during the process of the rotation and upward movement of the driving shaft 210, the first elastic limiting member 240 is in the driving shaft 210, and the second positioning pin 244 passes through the sleeve 600, so that the first elastic limiting member 240 follows the driving shaft 210 to move upward and slides in the kidney-shaped through groove 602 of the sleeve 600 to move upward. The drive shaft 210 continues to rotate and the milling cutter mills the aluminum-plastic back plate longitudinally until the second positioning pin 244 reaches the apex of the kidney-shaped through slot 602 of the sleeve 600. The driving shaft 210 continuously rotates and moves upwards to mill the aluminum-plastic back plate to a specified depth.

The sleeve 600 is driven to move upwards synchronously by the first elastic limiting member 240 while the aluminum-plastic back plate is milled to a specified depth, the positioning balls 664 on the second elastic limiting member 660 are gradually pushed to roll out of the second limiting groove 661 with an upper position until the second limiting groove 661 with an upper position is completely withdrawn to the edge of the second limiting groove 661 with a lower position, and slides down into the second limiting groove 661 located lower under the urging of the second spring 243 to move the sleeve 600 upward, so that the first engagement portion 603 of the sleeve 600 engages with the second engagement portion 611 of the first bevel gear 610, and at this time, the engagement of the driving shaft 210 and the first elastic positioning member 230 has reached the lower end of the first external thread 211, so that the first elastic positioning member 230 enters into the lower external circular groove 212, that is, the required machining depth is reached, the first elastic limiting member 240 slides into the first limiting groove 241 on the first housing 220, so as to keep the milling cutter working at a stable longitudinal position.

As shown in fig. 13, the driving shaft 210 continues to rotate counterclockwise (reversely rotate), and the driving shaft 210 can continue to rotate unaffected and cannot continue to push the driving shaft 210 when rotating to the top point due to the structure of the step 213 formed at the first external thread 211 and the lower external circular groove 212. Since the sleeve 600 is in spline engagement with the first bevel gear 610, at this time, the first bevel gear 610 rotates in reverse direction along with the sleeve 600, the first bevel gear 610 drives the second bevel gear 620 to rotate in forward direction, the second bevel gear 620 drives the driven shaft 630 to rotate clockwise (rotate in forward direction), so that the second external thread 631 is matched with the second elastic positioning element 650, the driven shaft 630 moves to the right, the third elastic limiting element 670 is disengaged from the right groove of the driven shaft 630, because the second housing is fixed on the bracket 400, the second housing 640 is not moved, because of the movement of the driven shaft 630, the driven shaft 630 pulls the first housing 220 to move, so that the driving shaft 210 and the milling cutter move to the right integrally, and the first housing 220 can realize stable transverse movement through the positioning of the sliding rod 641, as shown in fig. 14, until the driven shaft 630 moves to the rightmost end, the third elastic limiting element 670 falls into the third limiting groove 671, the driven shaft 630 stops moving rightward, the left outer circular groove 632 of the driven shaft 630 is matched with the second elastic positioning piece 650, and the working principle refers to the working process of the first elastic positioning piece 230 and the lower outer circular groove 212.

The milling cutter retreating process comprises the following steps:

as shown in fig. 15, the motor 110 rotates forward, the driving shaft 210 is driven to rotate clockwise (forward) by the gear set 120 and the connecting assembly 500, the step 213 formed at the joint of the first external thread 211 and the lower external circular groove 212 pushes the first elastic positioning element 230, so that the first elastic positioning element 230 enters the first external thread 211 of the driving shaft 210 from the lower external circular groove 212, and the first elastic positioning element 240 retracts from the first limiting groove 241 on the inner wall of the first housing 220. The driving shaft 210 rotates and moves downwards, the first elastic limiting piece 240 moves downwards along the kidney-shaped through groove 602 on the sleeve 600 synchronously, at this time, the second limiting groove 661, which is located at a lower position on the outer wall of the sleeve 600, is matched with the positioning ball 664 in the second elastic limiting piece 660 to keep the position of the sleeve 600 unchanged, and at this time, the sleeve 600 and the first bevel gear 610 still keep spline engagement; the first bevel gear 610 continues to rotate along with the sleeve 600, and drives the second bevel gear 620 and the driven shaft 630 to rotate clockwise, the second external thread 631 on the driven shaft 630 rotates, the second elastic positioning element 650 located in the left external thread groove 632 enters the thread groove of the second external thread 631 through the action of the step 213, so as to push the driven shaft 630 to move left, the third elastic positioning element 670 exits from the third limiting groove 671 on the left side, the driven shaft 630 continues to rotate until the second external thread 631 on the driven shaft 630 reaches the position of the second elastic positioning element 650, at this time, the second elastic positioning element 650 enters the right external thread groove 633 from the thread groove of the second external thread 631, and the driven shaft 630 continues to rotate but stops moving left.

As shown in fig. 16, the driving shaft 210 continues to rotate clockwise (rotate forward), the first elastic limiting member 240 moves downward along with the driving shaft 210 until the first elastic limiting member 240 reaches the lower vertex of the kidney-shaped through groove 602 of the sleeve 600, the driving shaft 210 continues to rotate downward, the first elastic limiting member 240 drives the sleeve 600 to move downward synchronously, the positioning balls of the second elastic limiting member 660 are gradually pushed to roll out of the second limiting groove 664 at the lower position until the second limiting groove 661 at the lower position completely exits into the second limiting groove 661 at the upper position, so that the sleeve 600 moves downward to be separated from the first bevel gear 610, the first bevel gear 610 and the driven shaft 630 driven by the first bevel gear 610 stop rotating, and thus the first housing 220 stops moving leftward. The driving shaft 210 continues to rotate clockwise until the first elastic positioning element 230 reaches the upper vertex of the first external thread 211, enters the upper external circular groove 214, stops rotating, and the whole machining assembly returns to the original point to prepare for the next cycle.

In addition, the first limiting groove 241 is arranged on the first housing, and the two third limiting grooves 671 are arranged on the driven shaft 630 to realize structural positioning, so that the machined structure is stable in size. The length of the first external thread 211 on the driving shaft 210 and the length of the second external thread 631 on the driven shaft 630 can be adjusted according to the product processing requirements, so that the depth and the length of the waist-shaped hole can be adjusted. The machining size can be controlled by setting the forward and reverse rotation time of the motor 110 according to requirements, and complex electric control is not needed.

The plurality of processing assemblies 200 in the processing apparatus of the present embodiment may be the processing assembly 200 of the first embodiment or/and the processing assembly 200 of the second embodiment. Thereby realizing the processing of a plurality of counter bores or/and a plurality of waist-shaped holes. The ingenious design of this scheme utilization structure makes the porous course of working that the complicated mechanism (machining center) that needs a large amount of control motors, a large amount of detection sensor and a large amount of computer operation accomplished replace with simple mechanism's collocation, and can once only process a plurality of position structures as required, and efficiency is fit for big batch volume production.

In summary, the following steps: the utility model provides a processing equipment for backplate processing, first elastic positioning piece 230 is fixed on first casing 220 in this scheme, and when driving shaft 210 reverses in first casing 220, first external screw thread 211 rotates, because the inlay card of first elastic positioning piece 230 makes driving shaft 210 move along the axial of first external screw thread 211 when rotating, and driving shaft 210 stretches out outwards, and driving shaft 210 drives the processing cutter to feed processing work piece simultaneously; when the driving shaft 210 moves to the lower outer circular groove 212 position, the driving shaft 210 moves to a desired processing depth position, and the first elastic positioning member 230 reaches the top end of the first external thread 211 and enters the lower outer circular groove 212 from the thread groove of the first external thread 211 to process at the depth position. When the machining is completed, the driving shaft 210 rotates forward, and since the bottom surface of the first external thread 211 is lower than the bottom surface of the lower external circular groove 212, when the driving shaft 210 rotates forward, the first elastic positioning element 230 positioning element enters the first external thread 211 along the thread groove profile of the first external thread 211, so that the driving shaft 210 retracts, and the cutting tool is driven to exit from the machined counter bore. In the process, through on the outer wall of the driving shaft 210 and with the lower outer circular groove 212 that the first external screw thread 211 is linked together, the intercommunication department the tooth bottom surface of the first external screw thread 211 is less than the groove bottom surface of the lower outer circular groove 212, can satisfy when first elastic positioning element 230 arrives the end of the first external screw thread 211, the driving shaft 210 does not advance when rotating to a direction, the function that can retract again during the counter rotation to realize that the position that the driving shaft 210 moved when extreme displacement point position is stable, in order to satisfy the requirement of machining depth. Therefore, the counter bore on the aluminum-plastic panel can be machined through a simple structure, and the existing machining center is replaced. The processing device has the advantages of stable work, low manufacturing cost and easy maintenance in the processing process, effectively reduces the production cost and improves the working efficiency compared with the processing of a processing center. The requirement of mass production of products is met.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims (10)

1. A processing apparatus for processing a backing plate, comprising: a power source, and one or more processing assemblies connected to the power source; the processing assembly comprises:

the driving shaft is connected with the power source, a first external thread is formed on the driving shaft, a lower outer circular groove is formed in the outer wall of the driving shaft and communicated with the first external thread, and the tooth bottom surface of the first external thread at the communication position is lower than the groove bottom surface of the lower outer circular groove;

the first machine shell is sleeved on the driving shaft;

the first elastic positioning piece is arranged on the first shell, and one end of the first elastic positioning piece is abutted against the thread groove of the first external thread; and

and the machining cutter is arranged at one end of the driving shaft.

2. The tooling apparatus for backing plate tooling of claim 1 wherein said tooling assembly further comprises:

the sleeve is sleeved on the driving shaft, and one end of the sleeve is provided with a first clamping and embedding part;

the first bevel gear is sleeved on the driving shaft in a sliding manner and is rotatably arranged in the first casing, and a second clamping and embedding part is arranged at one end, facing the sleeve, of the first bevel gear; the first clamping and embedding part is used for being meshed with the second clamping and embedding part and then fixedly connecting the sleeve and the first bevel gear;

a second bevel gear meshed with the first bevel gear;

the driven shaft is perpendicular to the driving shaft and provided with a second external thread, a left external circular groove is formed in the outer wall of the driven shaft and communicated with the second external thread, and the tooth bottom surface of the second external thread at the communication position is lower than the groove bottom surface of the left external circular groove;

the second shell is sleeved on the driven shaft; and

and the second elastic positioning piece is arranged on the second shell, and one end of the second elastic positioning piece is abutted against the thread groove of the second external thread.

3. The processing equipment for processing the back plate as claimed in claim 2, wherein a first elastic limiting part is arranged on the outer wall of the driving shaft, a first limiting groove is formed on the inner wall of the driving shaft, and the first limiting groove is used for being embedded with the first elastic limiting part after the driving shaft moves to a processing depth;

the sleeve with the driving shaft sets up that slides, set up waist shape logical groove on the sleeve, first elasticity locating part wears to establish waist shape logical inslot.

4. The processing apparatus for processing a backboard according to claim 3, wherein the first housing is provided with a second elastic limiting member, the outer wall of the sleeve is provided with a plurality of second limiting grooves at intervals, and the second elastic limiting member is adapted to be engaged with the second limiting grooves.

5. The processing equipment for processing the back plate as claimed in claim 2, wherein the driven shaft is provided with a right outer circular groove, the right outer circular groove is formed in the outer wall of the driven shaft and is respectively positioned at two ends of the second outer thread with the left outer circular groove, the right outer circular groove is communicated with the second outer thread, and the tooth bottom surface of the second outer thread is lower than the groove bottom surface of the right outer circular groove.

6. The processing equipment for processing the back plate according to claim 2, further comprising a bracket, wherein the first housing is arranged at a distance from the bracket, and the second housing is fixedly connected to the bracket;

the second casing slides on and is provided with the slide bar, the one end fixed connection of slide bar is in on the first casing.

7. The processing apparatus for processing a backboard according to claim 2, wherein a third elastic limiting member is disposed on the second housing, a third limiting groove is disposed at an interval on the outer wall of the driven shaft, and the third elastic limiting member is configured to be engaged in the third limiting groove.

8. The processing equipment for processing the back plate according to claim 1, wherein the driving shaft is provided with an upper outer circular groove, the upper outer circular groove is formed in the outer wall of the driving shaft and is respectively positioned at two ends of the first external thread with the lower outer circular groove, the upper outer circular groove is communicated with the first external thread, and the bottom surface of the first external thread at the communication position is lower than the bottom surface of the upper outer circular groove.

9. The processing apparatus for backboard processing according to claim 1, wherein the processing apparatus further comprises a plurality of connecting members, one end of the connecting members being connected to the processing assembly, the other end being connected to the power source;

the connecting assembly includes:

the first universal coupler is connected with the driving shaft in the machining assembly;

the slippage shaft is connected with the first universal coupling;

sliding the sleeve; the sliding sleeve is sleeved on the sliding shaft, and the sliding shaft moves along the axial direction of the sliding sleeve;

and one end of the second universal coupling is connected with the sliding sleeve, and the other end of the second universal coupling is connected with the power source.

10. A processing apparatus for back panel processing according to claim 9, wherein said power source comprises:

the motor is electrified and rotated to provide power;

the gear train, the gear train comprises a plurality of gears, the gear train is connected on the motor, a plurality of gears respectively with a plurality of in the gear train coupling assembling is connected.

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