CN112517485B

CN112517485B - Soldering flux and welding slag cleaning machine used after DBC substrate welding

Info

Publication number: CN112517485B
Application number: CN202011140447.0A
Authority: CN
Inventors: 李承浩; 金英珉; 金奉焕
Original assignee: Aiwei Jiangsu Power Electronics Co ltd
Current assignee: Aiwei Jiangsu Power Electronics Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-06
Anticipated expiration: 2040-10-22
Also published as: CN112517485A

Abstract

The invention discloses a soldering flux and welding slag cleaning machine after DBC substrate welding, which comprises: the cleaning machine comprises a cleaning machine body, wherein a feeding hole is formed in the right wall of the cleaning machine body, a discharging hole is formed in the left wall of the cleaning machine body, a first conveying mechanism, a second conveying mechanism and a third conveying mechanism are arranged in the cleaning machine body, the left end of the first conveying mechanism corresponds to the feeding hole, the right end of the third conveying mechanism corresponds to the discharging hole, the second conveying mechanism is located between the first conveying mechanism and the third conveying mechanism, and the cleaning mechanism is located above the second conveying mechanism. Through having designed first conveying mechanism, second conveying mechanism, third conveying mechanism, wiper mechanism isotructure in the cleaning machine body for this soldering flux welding slag cleaning machine degree of automation behind the DBC base plate welding is high, better adapts to streamlined production, can carry out continuous transport at the conveyor cleaning machine body with the DBC base plate, and washs the soldering flux welding slag after the DBC base plate welding through the cleaning machine, facilitates the use, and the cleaning efficiency is high, improves production efficiency greatly.

Description

Soldering flux and welding slag cleaning machine used after DBC substrate welding

Technical Field

The invention relates to the technical field of process equipment for manufacturing DBC (direct bonded copper) substrates, in particular to a soldering flux and welding slag cleaning machine for soldering flux after DBC substrates are soldered.

Background

With the development of technology, the demand for electronic products is increasing, and the striving for electronic products is also more and more intense. The production efficiency of the electronic product is improved, the production cost of the electronic product is reduced, and the method is a powerful means for improving the competitiveness of the product.

In the course of working of DBC base plate, all will need to set up welding equipment at the production line and weld, and the DBC base plate surface after the welding can remain and help welding flux and welding slag, adopts the manual work to clear away the inefficiency, and unable adaptation assembly line production influences production efficiency greatly. Therefore, it is necessary to provide a flux and slag cleaning machine after DBC substrate soldering to at least partially solve the problems in the prior art.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the above problems, the present invention provides a cleaning machine for flux and welding slag after DBC substrate soldering, comprising:

the cleaning machine comprises a cleaning machine body, wherein a feeding hole is formed in the right wall of the cleaning machine body, a discharging hole is formed in the left wall of the cleaning machine body, a first conveying mechanism, a second conveying mechanism and a third conveying mechanism are arranged in the cleaning machine body, the left end of the first conveying mechanism corresponds to the feeding hole, the right end of the third conveying mechanism corresponds to the discharging hole, the second conveying mechanism is located between the first conveying mechanism and the third conveying mechanism, a cleaning mechanism is arranged in the cleaning machine body, and the cleaning mechanism is located above the second conveying mechanism.

Preferably, the second conveying mechanism comprises a conveyor, an upward pushing mechanism and a plurality of downward pressing mechanisms, the conveyor is arranged between the first conveying mechanism and the third conveying mechanism, the upward pushing mechanism is arranged in the conveyor and upwards pushes against a conveying belt of the conveyor, and the downward pressing mechanisms are respectively arranged on two sides of the conveyor and used for downwards fixing the DBC substrate on the conveying belt.

Preferably, the jacking mechanism comprises a plurality of first vertical columns, a lower cushion plate, a plurality of second vertical columns, a middle cushion block, an upper cushion plate and a plurality of upper jacking rollers;

a plurality of first vertical posts all set up the interior subaerial of cleaning machine body, the lower bolster sets up the upper end of first vertical post, the conveyer belt is worn to establish the below of lower bolster, it is a plurality of the vertical post of second is all established on the lower bolster, the bottom of middle cushion is through a plurality of flexible leg joints on the lower bolster, the tip of middle cushion pass through the hinge bar with the vertical post of second is articulated, the upper padding plate sets up on the middle cushion, be provided with articulated slotted hole on the hinge bar, be provided with on the vertical post of second with the kelly that articulated slotted hole is to, it sets up to go up the top roll on the upper padding plate.

Preferably, the telescopic pressure lever comprises a first vertical pressure lever, a first stop block and a first spring, a telescopic hole is formed in the bottom of the middle cushion block, the lower end of the first vertical pressure lever is connected to the lower backing plate, the upper end of the first vertical pressure lever is connected to the telescopic hole in an inserting mode, the first stop block is arranged on the first vertical pressure lever in a sliding mode, and the first spring is sleeved on the first vertical pressure lever and abuts against the first stop block.

Preferably, the pressing mechanism comprises a vertical cylinder, a transverse plate, a second vertical pressing rod, a pressing pipe, a second stop block and a second spring, the vertical cylinder is arranged on the outer frame of the conveyor, the transverse plate is arranged at the upper end of the vertical cylinder, the upper end of the second vertical pressing rod is connected with one end, far away from the vertical cylinder, of the transverse plate, the pressing pipe is sleeved on the second vertical pressing rod, the second stop block is arranged at the lower end of the pressing pipe, the second spring is sleeved on the second vertical pressing rod and the pressing pipe, the upper end of the second spring is connected with the transverse plate, the lower end of the second spring is connected with the second stop block, and a wear-resistant pad is arranged on the lower surface of the second stop block.

Preferably, the cleaning mechanism comprises a plurality of vertical hanging rods, a cleaning box, a cleaning nozzle assembly, a cleaning group pipe and a first motor module, the upper end of each vertical hanging rod is connected with the inner top surface of the cleaning machine body, the cleaning group pipe is arranged in the cleaning box in a penetrating mode, the upper end of the cleaning group pipe extends out of the cleaning box and is connected with a water supply pipe, the lower end of the cleaning group pipe extends out of the cleaning box and is connected with the cleaning nozzle assembly, and the first motor module is connected with the cleaning group pipe in a rotating mode.

Preferably, the cleaning group pipe comprises an upper pipe and a lower pipe, the upper end of the upper pipe extends out of the cleaning tank and is connected with a water supply pipe, the lower end of the lower pipe extends out of the cleaning tank and is connected with the cleaning nozzle assembly, the lower end of the upper pipe is rotatably connected with the upper end of the lower pipe, and the first motor module is rotatably connected with the lower pipe.

Preferably, wherein, the washing mouth assembly includes vertical scavenge pipe, a plurality of washing arm, the upper end of vertical scavenge pipe with the lower extreme of downcomer is connected, and is a plurality of the washing arm all sets up slantwise the lower extreme of vertical scavenge pipe, the washing arm includes second motor module, a plurality of first seat, the second of bearing bears the seat and a plurality of cleaning head, second motor module sets up on the vertical scavenge pipe, it is a plurality of first seat interconnect that bears, the top first seat that bears with second motor module connects, the second bears the seat and sets up in the below first seat that bears, it is a plurality of the cleaning head sets up respectively first seat that bears the seat the second bears on the seat, it is a plurality of the cleaning head all with vertical scavenge pipe intercommunication.

Preferably, the first bearing seat comprises a first seat plate, a second seat plate and a third seat plate, the third seat plate is used for connecting the first seat plate and the second seat plate, so that the first bearing seat is U-shaped, a first clamping rod is arranged on the outer surface of the first seat plate, a plurality of first splines are arranged on the first clamping rod, a first clamping hole is arranged on the second seat plate, a plurality of first flower grooves are arranged in the first clamping hole, two adjacent first bearing seats are connected through the first clamping rod and the first clamping hole, a second clamping hole is arranged on the second motor module, a plurality of third flower grooves are arranged in the second clamping hole, the uppermost first bearing seat is connected with the second motor module through the first clamping rod and the second clamping hole, the second bearing seat comprises a fourth seat plate and a third clamping rod, the third clamping rod is arranged on the fourth seat plate, the third clamping rod is provided with a plurality of third splines, and the second bearing seat is connected with the first bearing seat at the bottom through the third clamping rod and the first clamping hole;

the cleaning head comprises a third bearing seat and a cleaning head body, the third bearing seat comprises a fifth seat plate and two sixth seat plates, the sixth seat plates are arranged on the fifth seat plate, the cleaning head body is arranged between the sixth seat plates, and the cleaning head body is communicated with the vertical cleaning pipe.

Preferably, the lower end of the cleaning group pipe is connected with a locking assembly, the vertical cleaning pipe is connected through the locking assembly, the locking assembly comprises a locking box, a left locking seat, a right locking seat and a fourth bearing seat, the upper end of the locking box is provided with a locking top plate, the locking top plate is provided with a first through hole, a first waterproof sleeve is arranged in the first through hole, the lower end of the cleaning group pipe is inserted in the first waterproof sleeve, the bottom of the locking box is provided with a second through hole, a second waterproof sleeve is arranged in the second through hole, the upper end of the vertical cleaning pipe penetrates through the second waterproof sleeve and extends into the lower end of the cleaning group pipe, the left locking seat comprises a left cross rod, a left outer U-shaped plate, a left inner U-shaped plate and two first vertical fin plates, the left cross rod is arranged on the left inner wall of the locking box, the left outer U-shaped plate is arranged at the right end of the left cross rod, the left inner U-shaped plate is arranged on the right side of the left outer U-shaped plate through a plurality of third springs, and the two first vertical fin plates are respectively arranged on the outer wall of the left outer U-shaped plate and located on two sides of the left cross rod; the right locking seat comprises a right U-shaped plate and two second vertical fins, the right U-shaped plate is arranged on the right side of the locking box and corresponds to the left inner U-shaped plate, and the second vertical fins are arranged on the outer wall of the right U-shaped plate and correspond to the first vertical fins;

the fourth bears the seat and includes that two are leveled lead screw, two lead screw covers, two first fluted discs, two second fluted discs and drive handle pole, the left end of leveling the lead screw with first vertical fin rotates to be connected, the lead screw cover sets up on the vertical fin of second, it wears to establish to level the lead screw in the lead screw cover, first fluted disc sets up the right-hand member of leveling the lead screw, the left end of drive handle pole passes the right wall of locking case and extend to with the second fluted disc is connected, the second fluted disc with first fluted disc rotates to be connected.

Compared with the prior art, the invention at least comprises the following beneficial effects:

the invention provides a soldering flux and welding slag cleaning machine for a DBC substrate after welding, which is characterized in that a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a cleaning mechanism and the like are designed in a cleaning machine body, so that the soldering flux and welding slag cleaning machine for the DBC substrate after welding is high in automation degree and better suitable for assembly line production, the DBC substrate can be continuously conveyed in the conveying cleaning machine body, the soldering flux and welding slag after welding of the DBC substrate can be cleaned through the cleaning machine, the use is convenient, the cleaning efficiency is high, and the production efficiency is greatly improved.

Other advantages, objects, and features of the flux slag cleaner after DBC substrate soldering according to the present invention will be in part apparent from the following description and in part will become apparent to those skilled in the art upon examination of the following or may be learned from practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a flux and welding slag cleaning machine after DBC substrate soldering according to the present invention.

Fig. 2 is a schematic structural diagram of an upper jacking mechanism in the soldering flux and welding slag cleaning machine after the DBC substrate is welded.

Fig. 3 is a schematic structural diagram of a pressing mechanism in the flux and slag cleaning machine after the DBC substrate is welded.

Fig. 4 is a schematic structural diagram of a locking mechanism in the flux and slag cleaning machine after the DBC substrate is welded.

Fig. 5 is a partial top view of a locking mechanism in the flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 6 is a schematic structural diagram of a cleaning arm in the flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 7 is a schematic structural diagram of a first bearing seat in the flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 8 is a schematic structural diagram of a plurality of first bearing seats connected with each other in the flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 9 is a schematic structural diagram of a cleaning head in a flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 10 is a schematic structural diagram of a second bearing seat in the flux and slag cleaning machine after the DBC substrate is soldered.

Fig. 11 is a schematic structural diagram of a second motor module in the flux and slag cleaning machine after the DBC substrate is soldered according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 11, the present invention provides a cleaning machine for flux and welding slag after DBC substrate soldering, comprising:

the cleaning machine comprises a cleaning machine body 1, wherein a feeding hole 101 is formed in the right wall of the cleaning machine body 1, a discharging hole 102 is formed in the left wall of the cleaning machine body 1, a first conveying mechanism 103, a second conveying mechanism 2 and a third conveying mechanism 104 are arranged in the cleaning machine body 1, the left end of the first conveying mechanism 103 corresponds to the feeding hole 101, the right end of the third conveying mechanism 104 corresponds to the discharging hole 102, the second conveying mechanism 2 is located between the first conveying mechanism 103 and the third conveying mechanism 104, a cleaning mechanism 3 is arranged in the cleaning machine body 1, and the cleaning mechanism 3 is located above the second conveying mechanism 2.

The working principle of the technical scheme is as follows: the invention provides a soldering flux and welding slag cleaning machine for a DBC substrate after welding, which mainly comprises a cleaning machine body 1, wherein an operator starts the cleaning machine body 1 when in use, the DBC substrate enters from a discharge hole 102 of the cleaning machine body 1 after being welded and is further conveyed to a first conveying mechanism 103, the DBC substrate is conveyed to a second conveying mechanism 2 through the first conveying mechanism 103, after being conveyed to the second conveying mechanism 2, the DBC substrate is fixed through the second conveying mechanism 2, then the cleaning mechanism 3 above the second conveying mechanism 2 cleans the soldering flux and welding slag on the DBC substrate, after the cleaning is finished, the DBC substrate is conveyed to a third conveying mechanism 104 through the second conveying mechanism 2 and is further conveyed to the discharge hole 102 on the left wall of the cleaning machine body 1 through the third conveying mechanism 104, and then the DBC substrate is conveyed out through the discharge hole 102.

The beneficial effects of the above technical scheme are that: through the design of the structure, the invention provides the soldering flux and welding slag cleaning machine for the welded DBC substrate, and the structures such as the first conveying mechanism 103, the second conveying mechanism 2, the third conveying mechanism 104, the cleaning mechanism 3 and the like are designed in the cleaning machine body 1, so that the soldering flux and welding slag cleaning machine for the welded DBC substrate has high automation degree and is well suitable for assembly line production, the DBC substrate can be continuously conveyed in the conveying cleaning machine body 1, the soldering flux and welding slag of the welded DBC substrate can be cleaned through the cleaning mechanism 3, the use is convenient, the cleaning efficiency is high, and the production efficiency is greatly improved.

In one embodiment, the second conveying mechanism 2 includes a conveyor 21, an upper pushing mechanism 22, and a plurality of lower pushing mechanisms 23, the conveyor 21 is disposed between the first conveying mechanism 103 and the third conveying mechanism 104, the upper pushing mechanism 22 is disposed in the conveyor 21 and pushes up against the conveyor belt 211 of the conveyor 21, and the plurality of lower pushing mechanisms 23 are respectively disposed on two sides of the conveyor 21 and are configured to downwardly fix the DBC substrate on the conveyor belt 211.

The working principle of the technical scheme is as follows: the embodiment provides a structure of the second conveying mechanism 2, specifically, the second conveying mechanism 2 includes a conveyor 21, an upper jacking mechanism 22, and a plurality of pressing mechanisms 23, the conveyor 21 is used for conveying the DBC substrate, after the DBC substrate reaches a proper position on the conveyor 21, the plurality of pressing mechanisms 23 are distributed at four corners of the conveyor 21 to press the DBC substrate downwards, so that the DBC substrate is not cleaned by the cleaning mechanism 3 and blown away or drifted during cleaning;

the top pushing mechanism 22 pushes against the conveying belt 211 below the conveying belt 211, so that the conveying belt 211 is in a tensioned state, and the loosening and fatigue of the conveying belt 211 are avoided.

The beneficial effects of the above technical scheme are that: through the design of the above structure, the embodiment provides a specific structure of the second conveying mechanism 2, the second conveying mechanism 2 includes a conveyor 21, an upward pushing mechanism 22, and a plurality of downward pressing mechanisms 23, the conveyor 21 can convey the DBC substrate, and the downward pressing mechanisms 23 press the DBC substrate to prevent the DBC substrate from being cleaned and blown away or drifting; the top pushing mechanism 22 is pushed against the conveying belt 211 below the conveying belt 211, so that the conveying belt 211 is in a tensioning state, and the loosening and fatigue of the conveying belt 211 are avoided.

In one embodiment, the topping mechanism 22 includes a plurality of first vertical columns 221, a lower bolster 222, a plurality of second vertical columns 223, a middle bolster 224, an upper bolster 225, a plurality of upper topping rollers 226;

a plurality of first vertical posts 221 all set up the cleaning machine body 1 the interior subaerial, lower bolster plate 222 sets up the upper end of first vertical post 221, conveyer belt 211 wears to establish the below of lower bolster plate 222, and is a plurality of second vertical post 223 all establishes on lower bolster plate 222, the bottom of middle cushion block 224 is connected through a plurality of flexible depression bars 24 on lower bolster plate 222, the tip of middle cushion block 224 pass through hinge rod 227 with second vertical post 223 is articulated, upper bolster plate 225 sets up on the middle cushion block 224, be provided with articulated bar hole 228 on the hinge rod 227, be provided with on the second vertical post 223 with articulated bar hole 228 to, go up top roller 226 and set up on the upper bolster plate 225.

The working principle of the technical scheme is as follows: the embodiment provides an upward ejection mechanism, which is installed in the conveyor belt 2 and located below the conveyor belt 211 of the conveyor belt 2, and abuts against the conveyor belt 211 from below, specifically, the upward ejection mechanism includes a plurality of first vertical columns 221, a lower cushion plate 222, a plurality of second vertical columns 223, a middle cushion block 224, an upper cushion plate 225, and a plurality of upper ejection rollers 226;

when the device is used, the lower cushion plate 222 is arranged on the first vertical columns 221, so that the lower conveying belt 211 passes through the lower cushion plate 222, the lower cushion plate 222 is provided with a plurality of second vertical columns 223, the middle cushion block 224 is arranged on the second vertical columns 223 through a plurality of hinge rods 407, the bottom of the middle cushion block 224 is connected to the lower cushion plate 222 through a plurality of telescopic compression rods 24, and therefore the upper cushion plate 225 can move up and down along with the middle cushion block 224 in the middle cushion block 224, namely, the conveying belt 211 is upwards propped against by the upper jacking rollers 226 in the lower direction, the whole upper jacking mechanism provides elastic support for the conveying belt 211 and is matched with the lower pressing mechanism 22 to play a role in upwards propping against the DBC substrate; so that the conveying belt 211 is in a tension state and the loosening fatigue of the conveying belt 211 is avoided.

The beneficial effects of the above technical scheme are that: through the design of the structure, the present embodiment provides a structure of a jacking mechanism, which includes a plurality of first vertical columns 221, a lower cushion plate 222, a plurality of second vertical columns 223, a middle cushion block 224, an upper cushion plate 225, a plurality of upper jacking rollers 226; the upward pushing mechanism provides elastic support for the conveying belt 211, and is matched with the downward pressing mechanism 22 for use, so as to perform an upward pushing effect on the DBC substrate; so that the conveying belt 211 is in a tension state and the loosening fatigue of the conveying belt 211 is avoided.

In one embodiment, the telescopic pressing rod 24 includes a first vertical pressing rod 241, a first stop block 242 and a first spring 243, a telescopic hole 244 is formed at the bottom of the middle cushion block 224, the lower end of the first vertical pressing rod 241 is connected to the lower cushion plate 222, the upper end of the first vertical pressing rod 241 is inserted into the telescopic hole 244, the first stop block 242 is slidably disposed on the first vertical pressing rod 241, and the first spring 243 is sleeved on the first vertical pressing rod 241 and abuts against the first stop block 242.

The working principle of the technical scheme is as follows: the embodiment provides a structure of the telescopic pressing rod 24, specifically, the telescopic pressing rod 24 includes a first vertical pressing rod 241, a first stop block 242, and a first spring 243, the first vertical pressing rod 241 is installed on the lower backing plate 222, the upper end of the first vertical pressing rod is inserted into the telescopic hole 244, and the first stop block 242 and the first spring 243 are both installed on the first vertical pressing rod 241, specifically, the first spring 243 abuts against the first stop block 242, and the first stop block 242 is located below the telescopic hole 244, so that the plurality of first stop blocks 242 abut against the middle cushion block 224 together, and provide an upward elastic support for the middle cushion block 224.

The beneficial effects of the above technical scheme are that: through the above structure design, the structure of the telescopic pressing rod 24 is provided in this embodiment, and the telescopic pressing rod 24 includes a first vertical pressing rod 241, a first stop block 242, and a first spring 243, wherein the first spring 243 abuts against the first stop block 242, so that the plurality of first stop blocks 242 abut against the middle cushion block 224 together, and an upward elastic support is provided for the middle cushion block 224.

In one embodiment, the pressing mechanism 23 includes a vertical cylinder 231, a horizontal plate 232, a second vertical pressing rod 233, a pressing pipe 234, a second stopper 235 and a second spring 236, the vertical cylinder 231 is disposed on the outer frame of the conveyor 21, the horizontal plate 232 is disposed at the upper end of the vertical cylinder 231, the upper end of the second vertical pressing rod 233 is connected to one end of the horizontal plate 232 away from the vertical cylinder 231, the pressing pipe 234 is sleeved on the second vertical pressing rod 233, the second stopper 235 is disposed at the lower end of the pressing pipe 234, the second spring 236 is sleeved on the second vertical pressing rod 233 and the pressing pipe 234, the upper end of the second spring 236 is connected to the horizontal plate 232, the lower end is connected to the second stopper 235, and a wear pad 237 is disposed on the lower surface of the second stopper 235.

The working principle of the technical scheme is as follows: the embodiment provides a structure of a pressing mechanism 23, specifically, the pressing mechanism 23 includes a vertical cylinder 231, a horizontal plate 232, a second vertical pressing rod 233, a pressing pipe 234, a second stopper 235 and a second spring 236, the vertical cylinder 231 drives the horizontal plate 232 to move downward, the horizontal plate 232 drives the second vertical pressing rod 233 to move downward, the pressing pipe 234 and the second stopper 235 below the second vertical pressing rod 233 press the DBC substrate, and the second spring 236 presses the second stopper 235 to provide downward pressure for the DBC substrate, wherein a wear pad 237 is designed on the lower surface of the second stopper 235, and the DBC substrate is further pressed.

The beneficial effects of the above technical scheme are that: through the design of the structure, the specific structure of the pressing mechanism 23 is provided in this embodiment, and the pressing mechanism 23 of the structure can press the DBC substrate downward well, so as to prevent the DBC substrate from being cleaned and blown away or drifting.

In one embodiment, the cleaning mechanism 3 includes a plurality of vertical hanging rods 301, a cleaning tank 302, a cleaning nozzle assembly, a cleaning group pipe and a first motor module 303, an upper end of each vertical hanging rod 301 is connected to an inner top surface of the cleaning machine body 1, the cleaning group pipe is inserted into the cleaning tank 302, an upper end of the cleaning group pipe extends out of the cleaning tank 302 and is connected to a water supply pipe, a lower end of the cleaning group pipe extends out of the cleaning tank 302 and is connected to the cleaning nozzle assembly, and the first motor module 303 is rotatably connected to the cleaning group pipe.

The working principle of the technical scheme is as follows: the embodiment provides a structure of a cleaning mechanism 3, specifically, the cleaning mechanism 3 includes a plurality of vertical hanging rods 301, a cleaning box 302, a cleaning nozzle assembly, a cleaning group pipe and a first motor module 303, the cleaning box 302 is connected to the inner top surface of the cleaning machine body 1 through the plurality of vertical hanging rods 301 and is located above the second conveying mechanism 2, an external water supply pipe supplies water to the cleaning group pipe, the lower end of the cleaning group pipe is connected to the cleaning nozzle assembly, the first motor module 303 is installed in the cleaning box 302, the first motor module 303 drives the cleaning group pipe to drive the first motor module 303 to perform reciprocating rotation (such as rotation 350 °) of less than 360 °, so that cleaning water flow sprayed from the cleaning nozzle assembly has an outward centrifugal force, and thus when cleaning a DBC substrate, soldering flux welding slag can be conveniently cleaned.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, provided wiper mechanism 3's concrete structure in this embodiment, this wiper mechanism 3 includes a plurality of vertical pegs 301, washs case 302, washing mouth assembly, washs a tub and first motor module 303, and first motor module 303 is driving and is wasing a tub for washing mouth assembly spun washing rivers have outside centrifugal force, like this when wasing the DBC base plate, can conveniently wash the scaling powder welding slag.

In one embodiment, the cleaning group pipe includes an upper pipe 304, a lower pipe 305, an upper end of the upper pipe 304 extends out of the cleaning tank 302 and is connected with a water supply pipe, a lower end of the lower pipe 305 extends out of the cleaning tank 302 and is connected with the cleaning nozzle assembly, a lower end of the upper pipe 304 is rotatably connected with an upper end of the lower pipe 305, and the first motor module 303 is rotatably connected with the lower pipe 305.

The working principle of the technical scheme is as follows: in this embodiment, a structure of the cleaning assembly is provided, and specifically, the cleaning assembly includes an upper conduit 304 and a lower conduit 305, the upper conduit 304 is connected to an external water supply pipe, and the lower conduit 305 is rotatably connected to the upper conduit 304, so that the first motor module 303 can drive the lower conduit 305 to rotate reciprocally, and the lower conduit 305 drives the cleaning nozzle assembly to rotate reciprocally.

The beneficial effects of the above technical scheme are that: through the design of the structure, the specific structure of the cleaning group pipe is provided in the embodiment, and the cleaning group pipe with the structure comprises the upper guide pipe 304 and the lower guide pipe 305, so that the structure is simple and convenient to use.

In one embodiment, the cleaning nozzle assembly includes a vertical cleaning tube 306, a plurality of cleaning arms 310, the upper end of the vertical cleaning pipe 306 is connected to the lower end of the downcomer 305, a plurality of cleaning arms 310 are obliquely provided to the lower end of the vertical cleaning pipe 306, the cleaning arm 310 includes a second motor module 311, a plurality of first carriers 312, a second carrier 313 and a plurality of cleaning heads 314, the second motor module 311 is disposed on the vertical cleaning pipe 306, the plurality of first carrying seats 312 are connected to each other, the uppermost first carrying seat 312 is connected to the second motor module 311, the second carrying seat 313 is arranged on the first carrying seat 312 at the lowest part, the plurality of cleaning heads 314 are respectively arranged on the first carrying seat 312 and the second carrying seat 313, and the plurality of cleaning heads 314 are communicated with the vertical cleaning pipe 306.

The working principle of the technical scheme is as follows: the embodiment provides a structure of a cleaning nozzle assembly, the cleaning nozzle assembly includes a vertical cleaning pipe 306, a plurality of cleaning arms 310, the vertical cleaning pipe 306 is connected to the lower end of the lower conduit 305, the plurality of cleaning arms 310 are all arranged at the lower end of the vertical cleaning pipe 306, the cleaning arms 310 include a second motor module 311, a plurality of first bearing seats 312, a second bearing seat 313 and a plurality of cleaning heads 314, the vertical cleaning pipe 306 is communicated with the plurality of cleaning heads 314, so that the cleaning heads 314 clean the DBC substrate, wherein the second motor module 311 can drive the plurality of first bearing seats 312 and the second bearing seat 313 to rotate in a reciprocating manner (the rotation is also less than 360 °), and the plurality of first bearing seats 312 are connected with each other, the first bearing seats 312 are installed in different directions, the cleaning heads 314 are installed at the first bearing seats 312, so as to eject cleaning water flows in different directions, and the second bearing seats 313 are installed at the lowest end, the cleaning head 314 is also mounted, and the DBC substrate is cleaned at the lowermost portion.

The beneficial effects of the above technical scheme are that: through the design of the above structure, the present embodiment provides a specific structure of a cleaning nozzle assembly, the cleaning nozzle assembly includes a vertical cleaning pipe 306 and a plurality of cleaning arms 310, wherein the second motor module 311 can drive the plurality of first carrying seats 312 and the second carrying seat 313 to perform reciprocating rotation (the rotation is also less than 360 °), the plurality of first carrying seats 312 are connected with each other, the first carrying seats 312 are installed in different directions, the cleaning head 314 is installed on the first carrying seats 312, and the DBC substrate can be cleaned from different angles.

In one embodiment, the first carrier seat 312 includes a first seat plate 3121, a second seat plate 3122, and a third seat plate 3123, the third seat plate 3123 is configured to connect the first seat plate 3121 and the second seat plate 3122, such that the first carrier seat 312 is U-shaped, a first snap bar 3124 is disposed on an outer surface of the first seat plate 3121, a plurality of first splines 3125 are disposed on the first snap bar 3124, a first snap hole 3126 is disposed on the second seat plate 3122, a plurality of first grooves 3127 are disposed in the first snap hole 3126, two adjacent first carrier seats 312 are connected by the first snap bar 3124 and the first snap hole 3126, a second snap hole 3111 is disposed on the second motor module 311, a plurality of third grooves 3112 are disposed in the second snap hole 3111, the uppermost first carrier seat 312 is connected with the second motor module 311311 by the first snap bar 3124 and the second snap hole 3111,

the second bearing seat 313 comprises a fourth seat plate 3131 and a third stem 3132, the third stem 3132 is disposed on the fourth seat plate 3131, a plurality of third splines 3133 are disposed on the third stem 3132, and the second bearing seat 313 is connected to the lowermost first bearing seat 312 through the third stem 3132 and the first snap hole 3126;

the cleaning head 314 comprises a third bearing seat 315 and a cleaning head body 316, the third bearing seat 315 comprises a fifth seat plate 3151 and two sixth seat plates 3152, the two sixth seat plates 3152 are arranged on the fifth seat plate 3151, the cleaning head 314 plate body is arranged between the two sixth seat plates 3152, and the cleaning head body 316 is communicated with the vertical cleaning pipe 306.

The working principle of the technical scheme is as follows: in the embodiment, structures of the first bearing seat 312, the second bearing seat 313 and the cleaning head 314 are provided, wherein the first bearing seat 312 includes a first seat plate 3121, a second seat plate 3122 and a third seat plate 3123, two adjacent first bearing seats 312 are inserted into a first clamping hole 3126 of the second seat plate 3122 through a first clamping rod 3124 on the first seat plate 3121, so as to achieve connection, furthermore, the first clamping rod 3124 is provided with a first spline 3125, the first clamping hole 3126 is provided with a first spline 3127, the first spline 3125 and the first spline 3127 cooperate with each other, so that the two adjacent first bearing seats 312 are fixed, and the third seat plate 3123 between the two first bearing seats is not on the same straight line, while the cleaning head 314 is installed in the first bearing seat 312, so as to clean the DBC substrate in different directions by the cleaning head 314; similarly, the uppermost first carrying seat 312 is inserted into the second slot 3111 of the second motor module 311 through the first latch 3124, and the first spline 3125 of the first latch 3124 corresponds to the third spline 3112 of the second slot 3111, so that the second motor module 311 can conveniently drive the first carrying seat 312; similarly, the third snap lever 3132 of the second carrier seat 313 is inserted into the first snap hole 3126 of the second seat plate 3122, so that the second carrier seat 313 is fixedly connected to the second seat plate 3122, and the cleaning head is mounted on the fourth seat plate 3131 of the second carrier seat 313;

the cleaning head 314 comprises a third bearing seat 315 and a cleaning head body 316, the cleaning head body 316 is installed between two sixth seat plates 3152, and the two sixth seat plates 3152 are designed on a fifth seat plate 3151, so that the cleaning head body 316 is conveniently adjusted.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, the first structure that bears seat 312, second bear seat 313 and cleaning head 314 that provides in this embodiment for wash arm 310 can be installed conveniently, and also can conveniently adjust the installation direction between a plurality of first seat 312 that bear, and cleaning head 314 is to the regulation of DBC base plate cleaning direction, and then realize that the washing rivers of wiper mechanism 3 spun can wash the scaling powder welding slag on the DBC base plate from different directions, and gain better cleaning performance.

In one embodiment, the lower end of the cleaning group pipe is connected with a locking assembly 4, and is connected with the vertical cleaning pipe 306 through the locking assembly 4, the locking assembly 4 comprises a locking box 41, a left locking seat 42, a right locking seat 43 and a fourth bearing seat 44, the upper end of the locking box 41 is provided with a locking top plate 411, the locking top plate 411 is provided with a first through hole, a first waterproof sleeve 412 is arranged in the first through hole, the lower end of the cleaning group pipe is inserted in the first waterproof sleeve 412, the bottom of the locking box 41 is provided with a second through hole, a second waterproof sleeve 413 is arranged in the second through hole, the upper end of the vertical cleaning pipe 306 passes through the second waterproof sleeve 413 and extends into the lower end of the cleaning group pipe, the left locking seat 42 comprises a left cross bar 421, a left outer U-shaped plate 422, a left inner U-shaped plate 423 and two first vertical fins 424, the left cross bar 421 is arranged on the left inner wall of the locking box 41, the left outer U-shaped plate 422 is arranged at the right end of the left cross bar 421, the left inner U-shaped plate 423 is arranged on the right side of the left outer U-shaped plate 422 through a plurality of third springs 425, and the two first vertical fin plates 424 are respectively arranged on the outer wall of the left outer U-shaped plate 422 and located on two sides of the left cross bar 421; the right locking seat 43 comprises a right U-shaped plate 431 and two second vertical fins 432, the right U-shaped plate 431 is arranged at the right side of the locking box 41 and corresponds to the left inner U-shaped plate 423, and the second vertical fins 432 are arranged on the outer wall of the right U-shaped plate 431 and correspond to the first vertical fins 424;

the fourth bearing seat 44 includes two horizontal lead screws 441, two lead screw sleeves 442, two first fluted discs 443, two second fluted discs 444 and a driving rod 445, the left end of the horizontal lead screw 441 is rotatably connected to the first vertical fin plate 424, the lead screw sleeve 442 is disposed on the second vertical fin plate 432, the horizontal lead screw 441 is disposed in the lead screw sleeve 442, the first fluted disc 443 is disposed at the right end of the horizontal lead screw 441, the left end of the driving rod 445 penetrates through the right wall of the locking box 41 and extends to be connected to the second fluted disc 444, and the second fluted disc 444 is rotatably connected to the first fluted disc 443.

The working principle of the technical scheme is as follows: the present embodiment provides a structure of the locking assembly 4, specifically, the locking assembly 4 includes a locking box 41, a left locking seat 42, a right locking seat 43, and a fourth bearing seat 44;

when in use, the upper end of the vertical cleaning pipe 306 passes through the second waterproof jacket 413 and is inserted upwards into the lower end of the cleaning group pipe, in order to prevent water leakage, a first waterproof jacket 412 is installed on the locking top plate 411 of the locking box 41, and the lower end of the cleaning group pipe is inserted into the first waterproof jacket 412; because the vertical cleaning pipe 306 and the cleaning group pipe are not connected in a threaded manner, but connected by the locking component 4, mainly for facilitating the subsequent cleaning nozzle assembly replacement, in order to prevent the vertical cleaning pipe 306 from being extruded out of the cleaning group pipe, the vertical cleaning pipe 306 is further fixed by the left locking seat 42, the right locking seat 43 and the fourth bearing seat 44 in the locking box 41, specifically, an operator rotates the driving handle 445 in the fourth bearing seat 44, the driving handle 445 drives the two second gear discs 444 to rotate, the second gear disc 444 is rotatably connected with the first gear disc 443, so that the horizontal lead screw 441 can be driven to rotate, the horizontal lead screw 441 is rotatably connected with the first vertical fin 424, and the movable connection is realized by the lead screw sleeve 442 and the second vertical fin 432, so the second vertical fin 432 can move towards the first vertical fin 424 along the horizontal lead screw 441, so that the clamping of the left locking seat 42 and the right locking seat 43 to the vertical cleaning pipe 306 is realized;

in order to further increase the clamping force of the vertical cleaning pipe 306, a left inner U-shaped plate 423 is designed in the left locking seat 42, the left outer U-shaped plate 422 abuts against the left inner U-shaped plate 423 through a plurality of third springs 425, so that the vertical cleaning pipe 306 is clamped by the left inner U-shaped plate 423 and the right U-shaped plate 431, the third springs 425 provide large continuous elastic force for the left inner U-shaped plate 423 in clamping the vertical cleaning pipe 306, and the vertical cleaning pipe 306 and the cleaning group pipe can be connected firmly.

The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, this embodiment provides the concrete structure of locking Assembly 4, and this locking Assembly 4 bears seat 44 including locking case 41, left locking seat 42, right locking seat 43 and fourth, makes things convenient for operating personnel to install vertical scavenge pipe 306 on wasing the group pipe to and change the cleaning nozzle assembly through this locking Assembly 4, and locking Assembly 4 provides comparatively firm centre gripping case to vertical scavenge pipe 306, prevents that the cleaning nozzle assembly from being extruded by the water pressure that washs the group pipe.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The utility model provides a scaling powder welding slag cleaning machine after DBC base plate welding which characterized in that includes:

the cleaning machine comprises a cleaning machine body (1), wherein a feeding hole (101) is formed in the right wall of the cleaning machine body (1), a discharging hole (102) is formed in the left wall of the cleaning machine body, a first conveying mechanism (103), a second conveying mechanism (2) and a third conveying mechanism (104) are arranged in the cleaning machine body (1), the left end of the first conveying mechanism (103) corresponds to the feeding hole (101), the right end of the third conveying mechanism (104) corresponds to the discharging hole (102), the second conveying mechanism (2) is located between the first conveying mechanism (103) and the third conveying mechanism (104), a cleaning mechanism (3) is arranged in the cleaning machine body (1), and the cleaning mechanism (3) is located above the second conveying mechanism (2);

the second conveying mechanism (2) comprises a conveyor (21), an upper jacking mechanism (22) and a plurality of lower pressing mechanisms (23), the conveyor (21) is arranged between the first conveying mechanism (103) and the third conveying mechanism (104), the upper jacking mechanism (22) is arranged in the conveyor (21) and upwards props against a conveying belt (211) of the conveyor (21), and the plurality of lower pressing mechanisms (23) are respectively arranged on two sides of the conveyor (21) and used for downwards fixing DBC (direct bonded copper) substrates on the conveying belt (211);

the upper jacking mechanism (22) comprises a lower backing plate (222), a middle cushion block (224), an upper backing plate (225), a plurality of upper jacking rollers (226), a plurality of first vertical columns (221) and a plurality of second vertical columns (223);

a plurality of first vertical columns (221) are all arranged on the inner ground of the cleaning machine body (1), the lower backing plate (222) is arranged at the upper end of the first vertical column (221), the conveying belt (211) is arranged below the lower backing plate (222) in a penetrating manner, the second vertical columns (223) are arranged on the lower backing plate (222), the bottom of the middle cushion block (224) is connected to the lower cushion plate (222) through a plurality of telescopic pressure rods (24), the end of the middle cushion block (224) is hinged with the second vertical column (223) through a hinge rod (227), the upper backing plate (225) is arranged on the middle cushion block (224), the hinge rod (227) is provided with a hinge strip hole (228), a clamping rod corresponding to the hinge strip hole (228) is arranged on the second vertical column (223), and the upper top roller (226) is arranged on the upper backing plate (225).

2. The machine for cleaning the flux slag after the DBC substrate is welded according to claim 1, wherein the telescopic pressing rod (24) comprises a first vertical pressing rod (241), a first stop block (242) and a first spring (243), a telescopic hole (244) is formed in the bottom of the middle cushion block (224), the lower end of the first vertical pressing rod (241) is connected to the lower cushion plate (222), the upper end of the first vertical pressing rod is inserted into the telescopic hole (244), the first stop block (242) is slidably arranged on the first vertical pressing rod (241), and the first spring (243) is sleeved on the first vertical pressing rod (241) and abuts against the first stop block (242).

3. The DBC substrate post-soldering flux and slag cleaning machine according to claim 1, wherein the pressing mechanism (23) comprises a vertical cylinder (231), a transverse plate (232), a second vertical pressing rod (233), a pressing pipe (234), a second stopper (235) and a second spring (236), the vertical cylinder (231) is arranged on the outer frame of the conveyor (21), the transverse plate (232) is arranged at the upper end of the vertical cylinder (231), the upper end of the second vertical pressing rod (233) is connected with one end of the transverse plate (232) far away from the vertical cylinder (231), the pressing pipe (234) is sleeved on the second vertical pressing rod (233), the second stopper (235) is arranged at the lower end of the pressing pipe (234), and the second spring (236) is sleeved on the second vertical pressing rod (233) and the pressing pipe (234), the upper end of the second spring (236) is connected with the transverse plate (232), the lower end of the second spring is connected with the second stop block (235), and a wear pad (237) is arranged on the lower surface of the second stop block (235).

4. The cleaning machine for the flux and the welding slag after the DBC substrate is welded according to claim 1, wherein the cleaning mechanism (3) comprises a cleaning box (302), a cleaning nozzle assembly, a cleaning group pipe, a first motor module (303) and a plurality of vertical hanging rods (301), the upper end of each vertical hanging rod (301) is connected with the inner top surface of the cleaning machine body (1), the cleaning group pipe is arranged in the cleaning box (302) in a penetrating mode, the upper end of the cleaning group pipe extends out of the cleaning box (302) and is connected with a water supply pipe, the lower end of the cleaning group pipe extends out of the cleaning box (302) and is connected with the cleaning nozzle assembly, and the first motor module (303) is connected with the cleaning group pipe in a rotating mode.

5. The machine of claim 4, wherein the cleaning group of tubes comprises an upper tube (304) and a lower tube (305), the upper end of the upper tube (304) extends out of the cleaning box (302) and is connected with a water supply pipe, the lower end of the lower tube (305) extends out of the cleaning box (302) and is connected with the cleaning nozzle assembly, the lower end of the upper tube (304) is rotatably connected with the upper end of the lower tube (305), and the first motor module (303) is rotatably connected with the lower tube (305).

6. The DBC substrate post-soldering flux and slag cleaning machine of claim 5, wherein the cleaning nozzle assembly comprises a vertical cleaning pipe (306), a plurality of cleaning arms (310), the upper end of the vertical cleaning pipe (306) is connected with the lower end of the lower conduit (305), the plurality of cleaning arms (310) are obliquely arranged at the lower end of the vertical cleaning pipe (306), the cleaning arms (310) comprise a second motor module (311), a second bearing seat (313), a plurality of cleaning heads (314), a plurality of first bearing seats (312), the second motor module (311) is arranged on the vertical cleaning pipe (306), the plurality of first bearing seats (312) are connected with each other, the uppermost first bearing seat (312) is connected with the second motor module (311), the second bearing seat (313) is arranged on the lowermost first bearing seat (312), the plurality of cleaning heads (314) are respectively arranged on the first bearing seat (312) and the second bearing seat (313), and the plurality of cleaning heads (314) are communicated with the vertical cleaning pipe (306).

7. The DBC substrate post-soldering flux and slag cleaning machine of claim 6, wherein the first bearing seat (312) comprises a first seat plate (3121), a second seat plate (3122) and a third seat plate (3123), the third seat plate (3123) is used for connecting the first seat plate (3121) and the second seat plate (3122) such that the first bearing seat (312) is U-shaped, a first clamping bar (3124) is disposed on an outer surface of the first seat plate (3121), a plurality of first splines (3125) are disposed on the first clamping bar (3124), a first clamping hole (3126) is disposed on the second seat plate (3122), a plurality of first grooves (3127) are disposed in the first clamping hole (3126), two adjacent first bearing seats (312) are connected through the first clamping bar (3124), the first clamping hole (3126), and a second clamping hole (3111) is disposed on the second motor module (311311), a plurality of third flower grooves (3112) are arranged in the second card hole (3111), the uppermost first bearing seat (312) is connected with the second motor module (311) through a first card rod (3124) and a second card hole (3111), the second bearing seat (313) comprises a fourth seat plate (3131) and a third card rod (3132), the third card rod (3132) is arranged on the fourth seat plate (3131), a plurality of third splines (3133) are arranged on the third card rod (3132), and the second bearing seat (313) is connected with the lowermost first bearing seat (312) through a third card rod (3132) and a first card hole (3126);

the cleaning head (314) comprises a third bearing seat (315) and a cleaning head body (316), the third bearing seat (315) comprises a fifth seat plate (3151) and two sixth seat plates (3152), the sixth seat plates (3152) are arranged on the fifth seat plate (3151), the plate body of the cleaning head (314) is arranged between the sixth seat plates (3152), and the cleaning head body (316) is communicated with the vertical cleaning pipe (306).

8. The machine for cleaning the flux and the welding slag after the DBC substrate is welded according to claim 6, wherein the lower end of the cleaning group pipe is connected with a locking assembly (4), the vertical cleaning pipe (306) is connected through the locking assembly (4), the locking assembly (4) comprises a locking box (41), a left locking seat (42), a right locking seat (43) and a fourth bearing seat (44), the upper end of the locking box (41) is provided with a locking top plate (411), the locking top plate (411) is provided with a first through hole, a first waterproof sleeve (412) is arranged in the first through hole, the lower end of the cleaning group pipe is inserted in the first waterproof sleeve (412), the bottom of the locking box (41) is provided with a second through hole, a second waterproof sleeve (413) is arranged in the second through hole, the upper end of the vertical cleaning pipe (306) penetrates through the second waterproof sleeve (413) and extends to be inserted in the lower end of the cleaning group pipe, the left locking seat (42) comprises a left cross bar (421), a left outer U-shaped plate (422), a left inner U-shaped plate (423) and two first vertical fin plates (424), the left cross bar (421) is arranged on the left inner wall of the locking box (41), the left outer U-shaped plate (422) is arranged at the right end of the left cross bar (421), the left inner U-shaped plate (423) is arranged on the right side of the left outer U-shaped plate (422) through a plurality of third springs (425), and the two first vertical fin plates (424) are respectively arranged on the outer wall of the left outer U-shaped plate (422) and located on two sides of the left cross bar (421); the right locking seat (43) comprises a right U-shaped plate (431) and two second vertical fin plates (432), the right U-shaped plate (431) is arranged on the right side of the locking box (41) and corresponds to the left inner U-shaped plate (423), and the second vertical fin plates (432) are arranged on the outer wall of the right U-shaped plate (431) and correspond to the first vertical fin plates (424);

the fourth bearing seat (44) comprises two horizontally-arranged lead screws (441), two lead screw sleeves (442), two first fluted discs (443), two second fluted discs (444) and a driving handle rod (445), the left ends of the horizontally-arranged lead screws (441) are rotatably connected with the first vertical finned plate (424), the lead screw sleeves (442) are arranged on the second vertical finned plate (432), the horizontally-arranged lead screws (441) are arranged in the lead screw sleeves (442) in a penetrating manner, the first fluted discs (443) are arranged at the right ends of the horizontally-arranged lead screws (441), the left ends of the driving handle rod (445) penetrate through the right wall of the locking box (41) and extend to be connected with the second fluted discs (444), and the second fluted discs (444) are rotatably connected with the first fluted discs (443).