CN116833954A - Automatic press-fitting equipment for radiator assembly - Google Patents

Abstract

The invention discloses automatic press-fitting equipment for a radiator assembly, which comprises a frame, a differential power assembly, two reduction boxes and an air cylinder, wherein the differential power assembly is arranged on the frame and comprises a servo motor and a differential mechanism, the servo motor is connected with an input shaft of the differential mechanism, and the differential mechanism is provided with two output shafts with the same rotating speed; the two reduction boxes are correspondingly connected with the output shafts of the differential through telescopic universal joints, the output shafts of the reduction boxes are used for being connected with tools, and the tools are used for screwing bolts or nuts of the radiator assembly; the cylinder is used for driving the two reduction boxes and the tool to move towards the radiator assembly together.

Description

Automatic press-fitting equipment for radiator assembly

Technical Field

The invention relates to the field of press mounting equipment, in particular to automatic press mounting equipment for a radiator assembly.

Background

In high-power electrical equipment, a heat sink is indispensable for controlling heat generation of devices such as thyristors and diodes. In general, devices such as thyristors and diodes need to be pressed onto a heat sink to dissipate heat. In order to ensure the conduction and heat dissipation effects, the press-fitting force requirements for these devices are relatively strict. The conventional method is to manually tighten the bolts using a bolt sleeve to control the press-fit force. However, this manual press-fitting of the heat sink assembly has some problems in that only one bolt can be fastened at a time, a plurality of bolts cannot be simultaneously tightened, resulting in a possible difference in the pre-tightening force of the final bolts.

Disclosure of Invention

In order to overcome the technical defects, the invention provides automatic press-fitting equipment for a radiator assembly, which can solve the problem of manual press-fitting and realize automatic press-fitting.

In order to solve the problems, the invention is realized according to the following technical scheme:

the automatic press-fitting equipment of the radiator assembly comprises a frame, a differential power assembly, two reduction boxes and an air cylinder, wherein the differential power assembly is arranged on the frame and comprises a servo motor and a differential, the servo motor is connected with an input shaft of the differential, and the differential is provided with two output shafts with the same rotating speed; the two reduction boxes are correspondingly connected with the output shafts of the differential through telescopic universal joints, the output shafts of the reduction boxes are used for being connected with tools, and the tools are used for screwing bolts or nuts of the radiator assembly; the cylinder is used for driving the two reduction boxes and the tool to move towards the radiator assembly together.

In one embodiment, the automatic press-fitting device of a heat sink assembly further comprises:

the programmable logic controller is used for setting the working rotating speed and the torque of the servo motor;

and the electromagnetic valve is used for controlling the cylinder.

In one embodiment, the differential includes a planetary gear case disposed between a first half-shaft output reversing case and a second half-shaft output reversing case;

the input shaft of the planetary gear box is connected with the servo motor through a coupler, and the planetary gear box is used for synchronously driving and connecting a first half-shaft output reversing box and a second half-shaft output reversing box; the output shaft of the first half-shaft output reversing box is connected with one of the reduction boxes through a telescopic universal joint, and the second half-shaft output reversing box is connected with the other reduction box through a telescopic universal joint;

wherein the differential is provided with a half-shaft lock member by which the differential is operable to switch between a first state, a second state, and a third state;

the first state is that the output shafts of the first half-shaft output reversing box and the second half-shaft output reversing box rotate in the same transmission way;

the second state is that the output shaft of the first half shaft output reversing box rotates, and the output shaft of the second half shaft output reversing box is locked and cannot rotate;

the third state is that the output shaft of the first half shaft output reversing box is locked, and the output shaft of the second half shaft output reversing box rotates.

In one embodiment, the side lock component comprises:

the sleeve piece is provided with a handle, the sleeve piece can be driven to rotate around the axis of the sleeve piece by the handle, and the outer wall of the sleeve piece is provided with a spiral guide groove;

a cartridge core adapted to be received in a cartridge cavity of the sleeve; the cylinder core piece is provided with a guide part movably positioned in the spiral guide groove of the sleeve piece;

the first locking piece is arranged in the first half-shaft output reversing box and is connected with the cylinder core piece;

the second locking piece is arranged in the second half-shaft output reversing box and is connected with the cylinder core piece through a connecting shaft, and the connecting shaft sequentially penetrates through the second half-shaft output reversing box, the planetary gear box and the first half-shaft output reversing box in a movable mode;

the rotary motion of the sleeve member is used for converting the linear motion of the cylinder core member, which is advanced or retreated along the cylinder cavity, through the cooperation of the spiral guide groove and the guide part;

when the cylinder core piece advances, the cylinder core piece pushes the first locking piece to move towards the first half-shaft output reversing box, so that an output shaft of the first half-shaft output reversing box is locked at a locking position by the first locking piece and cannot rotate;

when the cylinder core piece retreats, the cylinder core piece pulls the second locking piece to move towards the second half-shaft output reversing box through the connecting shaft, so that an output shaft of the second half-shaft output reversing box is locked at a locking position through the second locking piece and cannot rotate.

In one embodiment, a first transmission gear and a first reversing gear are arranged in the first half-shaft output reversing box;

a second transmission gear and a second reversing gear are arranged in the second half shaft output reversing box;

the first transmission gear and the second transmission gear are arranged on the output shaft of the planetary gear, so that the planetary gear box synchronously drives the first half-shaft output reversing box and the second half-shaft output reversing box to rotate;

the first reversing gear is matched with the first transmission gear, and the second reversing gear is matched with the second transmission gear to realize the output shaft reversing of the first half-shaft output reversing box and the second half-shaft output reversing box.

In one embodiment, a first gear and a second gear are arranged in each of the two reduction boxes, and the diameters of the first gear and the second gear are different for realizing further reduction;

the first gear is connected with an output shaft of the first half-shaft output reversing box through a telescopic universal joint, and the second gear is connected with an output shaft of the second half-shaft output reversing box through a telescopic universal joint;

the output shafts of the first gear and the second gear extend out of the box body of the reduction box;

the wheelbase between two reduction boxes is adjustable and is used for adapting to workpieces with different bolt distances.

In one embodiment, the heat sink assembly further comprises: the connecting piece is accommodated in the connecting piece,

the upper part of the storage connecting piece is connected with the cylinder;

the middle part of the accommodating connecting piece is a cavity, and the two reduction boxes are arranged in the cavity of the accommodating connecting piece in parallel;

the lower part of the storage connecting piece is provided with a hollow-out part which is used for enabling the output shafts of the first gear and the second gear to extend out and is used for connecting a tool.

In one embodiment, the housing comprises:

the support column is provided with a first supporting part and a second supporting part which are arranged at intervals up and down,

the first supporting part is used for installing a differential power assembly, the air cylinder is fixedly connected to the outer side wall of the first supporting part, and the two reduction boxes are arranged between the first supporting part and the second supporting part in a suspending manner; the second supporting part is used for placing a radiator assembly to be processed;

and the base is used for connecting the support posts.

In one embodiment, the second supporting portion is provided with a limiting portion, and the limiting portion is used for positioning a radiator assembly to be processed.

In one embodiment, the heat sink assembly automatic press-fit apparatus further comprises:

the device comprises a rack, two starting buttons, a control unit and a control unit, wherein the starting buttons are arranged on the rack, and the two starting buttons are pressed simultaneously to start the device;

the oil injection nozzle is arranged on the planetary gear box, the first half-shaft output reversing box and the second half-shaft output reversing box;

and the oil quantity observation window is arranged on the planetary gear box, the first half-shaft output reversing box and the second half-shaft output reversing box.

Compared with the prior art, the invention has the beneficial effects that: realize automatic pressure equipment, replace artifical pressure equipment with equipment pressure equipment, solved the slow problem of artifical pressure equipment brought, also solved the uneven problem of exerting oneself of artifical pressure equipment simultaneously. The equipment processing can be accurate in force, and a plurality of screws can be screwed down simultaneously, so that the equipment processing is faster and more efficient.

Drawings

The invention is described in further detail below with reference to the attached drawing figures, wherein:

fig. 1 is an overall construction view of an automatic press-fitting apparatus of a radiator assembly of the present invention;

FIG. 2 is a schematic view of the differential power assembly of the present invention;

FIG. 3 is an internal structural view of the differential power assembly of the present invention;

FIG. 4 is a front cross-sectional view of the internal structure of the differential power assembly of the present invention;

FIG. 5 is a block diagram of a sleeve member;

FIG. 6 is a block diagram of a cartridge core;

FIG. 7 is an exploded view of the sleeve member and the cartridge core member;

FIG. 8 is an exploded view of the cartridge core and the first stop;

FIG. 9 is a block diagram of a cylinder and a reduction gearbox;

FIG. 10 is a block diagram of a receiving connector;

FIG. 11 is an internal structural view of one of the reduction boxes;

FIG. 12 is a block diagram of a rack;

FIG. 13 is a schematic diagram of a mechanism of a heat sink assembly;

in the figure:

1-a frame; 101-a pillar; 102-a first support; 103-a second support; 104-a base;

105-start button; 106-a limiting part; 107-a heat sink assembly;

2-a differential power assembly; 201-a servo motor; 202-a differential;

203-planetary gear box; 2031-planetary gears;

204-a first half shaft output reversing box; 2041—a first drive gear; 2042—a first reversing gear; 2043-fitting portion;

205-a second half shaft output reversing box; 2051-a second transmission gear; 2052-a second reversing gear;

206-a half-shaft lock component; 2061-a handle; 2062-a cartridge core; 2063-a sleeve member;

2064-a first locking member; 2065-a second locking member; 2066-a helical guide; 2067-a first stop peg;

2068-a second stop peg; 2069-groove;

207-coupling; 208-connecting shaft; 209-a grease nipple; 210-oil mass observation window;

3-a reduction gearbox; 301-telescopic universal joint; 302-a first gear; 303-a second gear; 304-receiving the connector;

4-cylinder.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

The detailed features and advantages of the present invention will be set forth in the following detailed description of the embodiments, which is provided to enable any person skilled in the art to make and use the present invention, and the related objects and advantages of the present invention will be readily understood by those skilled in the art from the present disclosure, claims and drawings. The following examples are presented to illustrate the aspects of the invention in further detail, but are not intended to limit the scope of the invention in any way.

It should be understood that the terms upper, lower, etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.

Moreover, unless defined otherwise, all terms or words used herein, including technical and scientific terms and other words, are to be taken to include their ordinary meanings as understood by one of ordinary skill in the art. Furthermore, the definitions of the words and terms used in the present specification should be interpreted as including a meaning consistent with the technical field of the present invention. These terms are not to be construed as being overly idealized or formal intent unless expressly so defined.

As shown in fig. 1 to 13, a preferred embodiment of an automatic press-fitting apparatus for a heat sink assembly according to the present invention.

The automatic press-fitting equipment for the radiator assembly comprises a frame 1, a differential power assembly 2, two reduction boxes 3 and a cylinder 4, wherein the differential power assembly 2 is arranged on the frame 1, the differential power assembly 2 comprises a servo motor 201 and a differential 202, the servo motor 201 is connected with an input shaft of the differential 202, and the differential 202 is provided with two output shafts with the same rotating speed; the two reduction boxes 3 are correspondingly connected with the output shafts of the differential 202 through telescopic universal joints 301, the output shafts of the reduction boxes 3 are used for connecting tools, and the tools are used for screwing bolts or nuts of the radiator assembly 107; the cylinder 4 is used to drive the two reduction boxes 3 and the tool to move together towards the radiator assembly 107.

In one embodiment, the automatic press-fitting device of a heat sink assembly further comprises: a programmable logic controller and an electromagnetic valve, wherein the programmable logic controller is used for setting the working rotation speed and torque of the servo motor 201; the solenoid valve is used to control the cylinder 4.

In one embodiment, the differential 202 includes a planetary gear box 203, a first half-shaft output reversing box 204, and a second half-shaft output reversing box 205, the planetary gear box 203 being disposed between the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205;

the input shaft of the planetary gear box 203 is connected with the servo motor 201 through a coupling 207, and the planetary gear box 203 is used for synchronously driving and connecting a first half-shaft output reversing box 204 and a second half-shaft output reversing box 205; the output shaft of the first half-shaft output reversing box 204 is connected with one reduction box 3 through a telescopic universal joint 301, and the second half-shaft output reversing box 205 is connected with the other reduction box 3 through the telescopic universal joint 301;

wherein the differential 202 is provided with a half-shaft lock member 206, the half-shaft lock member 206 being used to switch the differential 202 among a first state, a second state and a third state;

the first state is that the output shafts of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 rotate in the same transmission way;

the second state is that the output shaft of the first half-shaft output reversing box 204 rotates, and the output shaft of the second half-shaft output reversing box 205 is locked and cannot rotate;

the third state is that the output shaft of the first half-shaft output reversing box 204 is locked, and the output shaft of the second half-shaft output reversing box 205 rotates.

Wherein the first state is a normal output state, and the second state and the third state are when the output rotation speeds of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are not equal, and manual fine adjustment can be performed.

The main functions of the differential 202 are: the first-stage speed reduction of the whole equipment is realized, the torque is increased, and the equal transfer output of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 is realized.

The first half-shaft output reversing box 204 serves to rotate the left output direction of the planetary gear box 203 by 90 degrees, and the second half-shaft output reversing box 205 serves to rotate the right output direction of the planetary gear box 203 by 90 degrees so that the output directions of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are identical.

When the output rotation speeds of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are the same, the planetary gears 2031 on the planet carrier in the planetary gear box 203 do not rotate and only revolve with the planet carrier, so that the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are driven to rotate at constant speed. When the output rotation speeds of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are unequal, the half-shaft output reversing box with the large moment stops or decelerates to rotate, the planetary gears 2031 on the planet carrier rotate, and finally the half-shaft output reversing box with the small moment rotates at a higher rotation speed until the rotation speeds at the two sides are consistent again.

In one embodiment, the side lock member 206 comprises:

a sleeve member 2063, said sleeve member 2063 having a handle 2061 by which the sleeve member 2063 is rotated about its own axis, the outer wall of said sleeve member 2063 having a helical guide slot 2066;

a barrel core 2062, said barrel core 2062 being adapted to be received in a barrel cavity of said sleeve member 2063; the barrel core 2062 has a guide portion movably located in the helical guide slot 2066 of the sleeve member 2063;

a first locking member 2064, the first locking member 2064 being disposed in the first half shaft output reversing box 204, the first locking member 2064 being connected to the tubular core member 2062;

a second locking member 2065, wherein the second locking member 2065 is disposed in the second half-shaft output reversing box 205, the second locking member 2065 is connected to the tubular core member 2062 via a connecting shaft 208, and the connecting shaft 208 sequentially penetrates the second half-shaft output reversing box 205, the planetary gear box 203 and the first half-shaft output reversing box 204;

wherein the rotational movement of the sleeve member 2063 converts the linear movement of the barrel core member 2062 advancing or retreating along the barrel cavity by the cooperation of the spiral guide groove 2066 and the guide portion;

when the cylindrical core 2062 advances, the cylindrical core 2062 pushes the first locking member 2064 to move toward the first half-shaft output turn box 204 to lock the output shaft of the first half-shaft output turn box 204 against rotation by the first locking member 2064 in the locked position;

when the cylindrical core 2062 is retreated, the cylindrical core 2062 pulls the second locking member 2065 via the connecting shaft 208 to move toward the second half-shaft output shoes 205 to lock the output shaft of the second half-shaft output shoes 205 against rotation by the second locking member 2065 in the locked position.

In one embodiment, a first transmission gear 2041 and a first reversing gear 2042 are disposed in the first half-shaft output reversing box 204;

a second transmission gear 2051 and a second reversing gear 2052 are arranged in the second half-shaft output reversing box 205;

the first transmission gear 2041 and the second transmission gear 2051 are arranged on the output shaft of the planetary gear 2031, so that the planetary gear box 203 synchronously drives the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 to rotate;

the first reversing gear 2042 is matched with the first transmission gear 2041, and the second reversing gear 2052 is matched with the second transmission gear 2051, so that the output shafts of the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205 are reversed.

The sleeve member 2063 is connected with the barrel core member 2062 through a first limit bolt 2067, the first limit bolt 2067 penetrates through the sleeve member 2063 and the barrel core member 2062, when the handle 2061 rotates, the sleeve member 2063 is driven to rotate, the first limit bolt 2067 moves in a spiral guide groove 2066 of the sleeve member 2063, the barrel core member 2062 is driven to do linear movement of advancing or retreating, the barrel core member 2062 is connected with the first locking member 2064 through a second limit bolt 2068, and a spring is further arranged between the barrel core member 2062 and the first locking member 2064; the second locking member 2065 is also provided with a spring; wherein, the first locking member 2064 and the second locking member 2065 are provided with a groove 2069, the first transmission gear 2041 and the second transmission gear 2051 are provided with a fitting portion 2043 adapted to the groove 2069, and the fitting portion 2043 is matched with the groove 2069, so that the first transmission gear 2041 and the second transmission gear 2051 can be locked.

In one embodiment, a first gear 302 and a second gear 303 are arranged in the two reduction boxes 3, and the diameters of the first gear 302 and the second gear 303 are different for realizing further reduction;

the first gear 302 is connected with the output shaft of the first half-shaft output reversing box 204 through a telescopic universal joint 301, and the second gear 303 is connected with the output shaft of the second half-shaft output reversing box 205 through the telescopic universal joint 301;

the output shafts of the first gear 302 and the second gear 303 extend out of the box body of the reduction box 3;

the wheelbase between the two reduction boxes 3 is adjustable, and the reduction boxes are used for adapting to workpieces with different bolt distances.

In one embodiment, the heat sink assembly further comprises: the connector 304 is received in the receptacle,

the upper part of the accommodating connecting piece 304 is connected with the cylinder 4;

the middle part of the accommodating connecting piece 304 is a cavity, and the two reduction boxes 3 are arranged in parallel in the cavity of the accommodating connecting piece 304;

the lower part of the accommodating connecting piece 304 is provided with a hollow, and the hollow is used for enabling the output shafts of the first gear 302 and the second gear 303 to extend out and connecting tools.

In one embodiment, the frame 1 comprises:

a column 101, the column 101 having a first support 102 and a second support 103, the first support 102 and the second support 103 being arranged at a vertical interval,

the first supporting part 102 is used for installing the differential power assembly 2, the air cylinder 4 is fixedly connected to the outer side wall of the first supporting part 102, and the two reduction boxes 3 are suspended between the first supporting part 102 and the second supporting part 103; the second supporting part 103 is used for placing a radiator assembly 107 to be processed;

a base 104, said base 104 being adapted to connect to the post 101.

In one embodiment, the second supporting portion 103 is provided with a limiting portion 106, the limiting portion 106 is used for positioning a heat sink assembly 107 to be processed, and the heat sink assembly 107 is provided with a limiting groove matched with the limiting portion 106.

In one embodiment, the heat sink assembly automatic press-fit apparatus further comprises: an activation button 105, a nipple 209 and a fuel level viewing window 210,

the starting buttons 105 are arranged on the rack 1, the number of the starting buttons 105 is two, and the equipment is started after the two starting buttons 105 are pressed simultaneously;

the oil nozzle 209 is arranged on the planetary gear box 203, the first half-shaft output reversing box 204 and the second half-shaft output reversing box 205;

the oil amount observation window 210 is provided on the planetary gear box 203, the first half-shaft output reversing box 204, and the second half-shaft output reversing box 205.

The working principle of the automatic press-fitting equipment for the radiator component provided by the invention is as follows:

the automatic press-fitting equipment for the radiator assembly comprises a frame 1, a differential power assembly 2, two reduction boxes 3 and a cylinder 44, wherein the differential power assembly 2 is arranged on the frame 1, the differential power assembly 2 comprises a servo motor 201 and a differential 202, the servo motor 201 is connected with an input shaft of the differential 202, and the differential 202 is provided with two output shafts with the same rotating speed; the two reduction boxes 3 are correspondingly connected with the output shafts of the differential 202 through telescopic universal joints 301, the output shafts of the reduction boxes 3 are used for connecting tools, and the tools are used for screwing bolts or nuts of the radiator assembly 107; the cylinder 4 is used to drive the two reduction boxes 3 and the tool to move together towards the radiator assembly 107.

Other structures of an automatic press-fitting apparatus for a heat sink assembly according to the present embodiment are known in the art.

The present invention is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention are within the scope of the technical proposal of the present invention.

Claims (10)

1. An automatic press-fitting apparatus of a heat sink assembly, characterized in that the automatic press-fitting apparatus of a heat sink assembly comprises:

a frame;

the differential power assembly is arranged on the rack and comprises a servo motor and a differential mechanism, wherein the servo motor is connected with an input shaft of the differential mechanism, and the differential mechanism is provided with two output shafts with the same rotating speed;

the two reduction boxes are correspondingly connected with the output shafts of the differentials through telescopic universal joints, the output shafts of the reduction boxes are used for being connected with tools, and the tools are used for screwing bolts or nuts of the radiator assembly;

and the air cylinder is used for driving the two reduction boxes and the tool to move together towards the radiator assembly.

2. The automatic press-fitting apparatus of a heat sink assembly as set forth in claim 1, further comprising:

the programmable logic controller is used for setting the working rotating speed and the torque of the servo motor;

and the electromagnetic valve is used for controlling the cylinder.

3. The automatic press-fitting apparatus of a heat sink assembly according to claim 1, wherein:

the differential comprises a planetary gear box, a first half-shaft output reversing box and a second half-shaft output reversing box, wherein the planetary gear box is arranged between the first half-shaft output reversing box and the second half-shaft output reversing box;

the input shaft of the planetary gear box is connected with the servo motor through a coupler, and the planetary gear box is used for synchronously driving and connecting a first half-shaft output reversing box and a second half-shaft output reversing box; an output shaft of the first half-shaft output reversing box is connected with one of the reduction boxes through a telescopic universal joint, and an output shaft of the second half-shaft output reversing box is connected with the other reduction box through a telescopic universal joint;

wherein the differential is provided with a half-shaft lock member by which the differential is operable to switch between a first state, a second state, and a third state;

the first state is that the output shafts of the first half-shaft output reversing box and the second half-shaft output reversing box rotate in the same transmission way;

the second state is that the output shaft of the first half shaft output reversing box rotates, and the output shaft of the second half shaft output reversing box is locked and cannot rotate;

the third state is that the output shaft of the first half shaft output reversing box is locked, and the output shaft of the second half shaft output reversing box rotates.

4. A heat sink assembly automatic press-fitting apparatus as claimed in claim 3, wherein said half-shaft lock component comprises:

the sleeve piece is provided with a handle, the sleeve piece can be driven to rotate around the axis of the sleeve piece by the handle, and the outer wall of the sleeve piece is provided with a spiral guide groove;

a cartridge core adapted to be received in a cartridge cavity of the sleeve; the cylinder core piece is provided with a guide part movably positioned in the spiral guide groove of the sleeve piece;

the first locking piece is arranged in the first half-shaft output reversing box and is connected with the cylinder core piece;

the second locking piece is arranged in the second half-shaft output reversing box and is connected with the cylinder core piece through a connecting shaft, and the connecting shaft sequentially penetrates through the second half-shaft output reversing box, the planetary gear box and the first half-shaft output reversing box in a movable mode;

the rotary motion of the sleeve member is used for converting the linear motion of the cylinder core member, which is advanced or retreated along the cylinder cavity, through the cooperation of the spiral guide groove and the guide part;

when the cylinder core piece advances, the cylinder core piece pushes the first locking piece to move towards the first half-shaft output reversing box, so that an output shaft of the first half-shaft output reversing box is locked at a locking position by the first locking piece and cannot rotate;

when the cylinder core piece retreats, the cylinder core piece pulls the second locking piece to move towards the second half-shaft output reversing box through the connecting shaft, so that an output shaft of the second half-shaft output reversing box is locked at a locking position through the second locking piece and cannot rotate.

5. An automatic press-fitting apparatus for a heat sink assembly as set forth in claim 4,

a first transmission gear and a first reversing gear are arranged in the first half-shaft output reversing box;

a second transmission gear and a second reversing gear are arranged in the second half shaft output reversing box;

the first transmission gear and the second transmission gear are arranged on the output shaft of the planetary gear, so that the planetary gear box synchronously drives the first half-shaft output reversing box and the second half-shaft output reversing box to rotate;

the first reversing gear is matched with the first transmission gear, and the second reversing gear is matched with the second transmission gear to realize the output shaft reversing of the first half-shaft output reversing box and the second half-shaft output reversing box.

6. The automatic press-fitting apparatus of a heat sink assembly as set forth in claim 5, wherein:

a first gear and a second gear are arranged in each of the two reduction boxes, and the diameters of the first gear and the second gear are different for realizing further reduction;

the first gear is connected with an output shaft of the first half-shaft output reversing box through a telescopic universal joint, and the second gear is connected with an output shaft of the second half-shaft output reversing box through a telescopic universal joint;

the output shafts of the first gear and the second gear extend out of the box body of the reduction box;

the wheelbase between two reduction boxes is adjustable and is used for adapting to workpieces with different bolt distances.

7. The automatic press-fitting apparatus of a heat sink assembly according to claim 6, further comprising in the automatic press-fitting apparatus:

the connecting piece is accommodated in the connecting piece,

the upper part of the storage connecting piece is connected with the cylinder;

the middle part of the accommodating connecting piece is a cavity, and the two reduction boxes are arranged in the cavity of the accommodating connecting piece in parallel;

the lower part of the storage connecting piece is provided with a hollow-out part which is used for enabling the output shafts of the first gear and the second gear to extend out and is used for connecting a tool.

8. The automatic press-fitting apparatus of a heat sink assembly according to claim 2, wherein the frame comprises:

the support column is provided with a first supporting part and a second supporting part which are arranged at intervals up and down,

the first supporting part is used for installing a differential power assembly, the air cylinder is fixedly connected to the outer side wall of the first supporting part, and the two reduction boxes are arranged between the first supporting part and the second supporting part in a suspending manner; the second supporting part is used for placing a radiator assembly to be processed;

and the base is used for connecting the support posts.

9. The automatic press-fitting apparatus of a heat sink assembly as set forth in claim 8, wherein:

and the second supporting part is provided with a limiting part which is used for positioning the radiator assembly to be processed.

10. The automatic press-fitting apparatus of a heat sink assembly according to claim 2, further comprising:

the device comprises a rack, two starting buttons, a control unit and a control unit, wherein the starting buttons are arranged on the rack, and the two starting buttons are pressed simultaneously to start the device;

the oil injection nozzle is arranged on the planetary gear box, the first half-shaft output reversing box and the second half-shaft output reversing box;

and the oil quantity observation window is arranged on the planetary gear box, the first half-shaft output reversing box and the second half-shaft output reversing box.