Screw locking machine with heat-conducting glue dispensing function

Abstract

The utility model relates to a screw locking machine with a heat-conducting glue dispensing function, which comprises a working table, a glue dispensing device and a screw locking device, the glue dispensing device and the screw locking device are respectively arranged on a glue dispensing station and a screw locking station of the working table, and the working table is movably provided with a material table through a feeding driving module. The feeding driving module drives the material table to reciprocate among the connection station, the dispensing station and the screw locking station, the material table is provided with a positioning jig, the positioning jig is used for placing the heat dissipation base and the power device at the connection station, the dispensing device dispenses heat conduction glue on the heat conduction face of the heat dissipation base at the dispensing station, and the screw locking device locks the heat conduction face of the heat dissipation base at the screw locking station. The screw locking device locks the power device on the heat conduction surface of the heat dissipation seat through screws, and the heat dissipation surface of the power device is tightly attached to the heat conduction surface of the heat dissipation seat through heat conduction glue. According to the utility model, the heat-conducting glue is dispensed on the heat dissipation seat through the glue dispensing device, and the power device and the heat dissipation seat are locked by the screw locking device through screws, so that the glue dispensing process and the screw locking process are completed, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lock screw machine technical field, especially a lock screw machine with point heat conducting glue function. BACKGROUND

[0002] IGBT (Insulated Gate Bipolar Transistor) is an important power electronic device as a power device, which is widely used in many fields. In household appliances, IGBT is mainly used for frequency conversion control, and is mainly used for controlling and regulating the speed of motor. IGBT will generate a lot of heat in the working process, if it cannot be cooled in time, it will cause the temperature of the chip to be too high, and then affect its stability and reliability. In terms of heat dissipation, IGBT is fixed on the heat sink, and the heat dissipation efficiency is improved through the heat sink, and the IGBT and the heat sink need to be smeared with heat-conducting silicone grease, and the air gap between the IGBT and the heat sink surface due to the existence of fine unevenness is removed by using heat-conducting silicone grease.

[0003] In the production and assembly process of the existing IGBT, the smearing of the heat-conducting silicone grease and the screw fastening process of the IGBT and the heat sink are all handled manually, the production efficiency is low, and the heat-conducting silicone grease is not smeared uniformly and inconsistently, which leads to the unsatisfactory heat dissipation effect of the IGBT. UTILITY MODEL CONTENTS

[0004] In order to solve the problems of the prior art, the utility model provides a lock screw machine with point heat-conducting glue function.

[0005] The utility model provides a lock screw machine with point heat-conducting glue function, including workbench, point glue device and lock screw device, point glue device and lock screw device set up respectively in the point glue work station and lock screw work station of workbench, workbench is movably provided with material table through feeding drive module, feeding drive module drives material table to move back and forth between the connection work station, point glue work station and lock screw work station, material table is provided with positioning jig, positioning jig places heat dissipation seat and power device respectively at the connection work station, at point glue work station, point glue device points heat-conducting glue on the heat dissipation surface of heat dissipation seat, at lock screw work station, lock screw device locks power device on the heat dissipation surface of heat dissipation seat through screw, and the heat dissipation surface of power device is pasted tightly with the heat dissipation surface of heat dissipation seat through heat-conducting glue.

[0006] In some embodiments, the workbench is provided with two feeding drive modules side by side, and the material table is installed on the sliding table of the feeding drive module.

[0007] In some embodiments, the positioning jig comprises a positioning plate and a cover plate, the upper end surface of the positioning plate is provided with positioning grooves matching the shape of the heat sink, a plurality of the positioning grooves are arranged on the positioning plate, the heat conduction surface of the heat sink is higher than the upper end surface of the positioning plate, the cover plate is connected to the boss of the upper end surface of the positioning plate through a hinge, and the cover plate is reversibly arranged on the positioning plate through the hinge, when the cover plate is turned over above the positioning grooves and the heat sink, the cover plate is pressed on the heat conduction surface of the heat sink.

[0008] In some embodiments, the cover plate has positioning holes at the corresponding positions of the positioning grooves, when the cover plate is turned over above the positioning grooves and the heat sink, the heat sink exposes the dispensing area and the first screw hole of the heat conduction surface at the positioning holes, the dispensing device dispenses the heat conduction glue in the dispensing area, the power device is positioned on the heat conduction surface of the heat sink through the positioning holes, and the second screw hole of the power device is aligned with the first screw hole of the heat sink.

[0009] In some embodiments, the workbench is provided with a gantry, the dispensing device and the screw locking device are arranged on the two sides of the gantry respectively, the dispensing device comprises a first driving assembly, a dispensing head and a glue box, the first driving assembly is arranged on the gantry, the dispensing head is movably arranged on the first lifting seat of the first driving assembly through a dispensing cylinder, the glue box is arranged on the dispensing work station of the workbench, and the dispensing head sticks the heat conduction glue in the glue box under the driving of the first driving assembly and the dispensing cylinder and dispenses the heat conduction glue on the dispensing area of the material table heat sink.

[0010] In some embodiments, the glue box comprises a box body and a rotating disc, the rotating disc is rotatably arranged in the box body through a motor, the rotating disc contains the heat conduction glue, the box body is provided with a feeding port and a sticking port, the feeding port and the sticking port are separated by a scraper, the lower end surface of the scraper cooperates with the rotating disc to scrape the heat conduction glue on the rotating disc, and the dispensing head sticks the heat conduction glue at the sticking port under the driving of the first driving assembly and the dispensing cylinder.

[0011] In some embodiments, the inner wall of the box body and the scraper form a material bin, the opening on the upper side of the material bin is the feeding port, and the feeding port is higher than the sticking port.

[0012] In some embodiments, the box body is provided with a supporting seat below, and the supporting seat is fixed with the box body through a plurality of supporting columns.

[0013] In some embodiments, the screw locking device comprises a screw feeding box, a second driving assembly, an electric screwdriver, and a lifting cylinder. The screw feeding box is installed on a workbench. The second driving assembly is arranged on a gantry. A mounting seat is arranged on a second lifting seat of the second driving assembly. A lifting guide rail is arranged on the mounting seat. The electric screwdriver is installed on a sliding seat of the lifting guide rail. The lifting cylinder is installed on the mounting seat. A driving end of the lifting cylinder is connected with the sliding seat. The lifting cylinder drives the sliding seat and the electric screwdriver to move along the lifting guide rail. The mounting seat is provided with a guide sleeve below the electric screwdriver through a support.

[0014] In some embodiments, a spring is arranged between the driving end of the lifting cylinder and the sliding seat. The spring is sleeved on a column pin. The column pin is fixedly connected with a piston rod of the lifting cylinder. The column pin is arranged on a connecting table of the sliding seat. The column pin is provided with a baffle at two ends of the spring.

[0015] Compared with the prior art, the screw locking machine with the heat-conducting glue dispensing function has the following beneficial effects: the heat-conducting glue is dispensed on the heat-dissipating seat through the glue dispensing device, the power device and the heat-dissipating seat are locked through the screw locking device, the dispensing and screw locking operations are performed on the power device and the heat-dissipating seat, the positioning jig on the material table can simultaneously place multiple heat-dissipating seats, the dispensing and screw locking efficiency is improved, and therefore the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a perspective structural schematic view of a screw locking machine with a heat-conducting glue dispensing function according to an embodiment of the present application.

[0017] Figure 2 FIG. 2 is another perspective structural schematic view of the screw locking machine with the heat-conducting glue dispensing function according to the embodiment of the present application.

[0018] Figure 3 FIG. 3 is an exploded structural schematic view of a positioning jig according to the embodiment of the present application.

[0019] Figure 4 FIG. 4 is a perspective structural schematic view of the positioning jig according to the embodiment of the present application.

[0020] Figure 5 FIG. 5 is a perspective structural schematic view of a glue box according to the embodiment of the present application.

[0021] FIG. 1 is a perspective structural schematic view of a screw locking machine with a heat-conducting glue dispensing function according to an embodiment of the present application.

[0022] 1, workbench; 11, gantry; 12, feeding driving module; 13, sliding table; 14, material table;

[0023] 2, positioning jig; 21, positioning plate; 22, cover plate; 23, positioning groove; 24, boss; 25, hinge; 26, positioning hole;

[0024] 3, dispensing device;

[0025] 4, dispensing head; 41, dispensing cylinder; 42, first driving assembly; 43, second linear module; 44, first moving seat; 45, third linear module; 46, first lifting seat;

[0026] 5, glue box; 51, box body; 52, turntable; 53, scraper; 54, stock bin; 55, feeding port; 56, sticky material port; 57, heat-conducting glue; 58, support seat; 59, support column;

[0027] 6, screw locking device; 61, screw feeding box; 62, electric screwdriver; 63, lifting cylinder; 64, spring; 65, pin; 66, baffle; 67, sliding seat; 68, connecting table;

[0028] 7, second driving assembly; 71, fourth linear module; 72, second moving seat; 73, fifth linear module; 74, second lifting seat; 75, mounting seat; 76, lifting guide rail; 77, support; 78, guide sleeve. DETAILED DESCRIPTION

[0029] The specific implementation of the present application is described with reference to the accompanying drawings.

[0030] Reference Figure 1 , it is the three-dimensional structure schematic diagram of the screw locking machine with the point heat-conducting glue function, the workbench 1 is provided with the dispensing station 101 and the screw locking station 102, the material table 14 moves reciprocatingly between the dispensing station 101 and the screw locking station 102 through the feeding driving module 12, the right side is the connection station 103, the heat sink 201 and the power device 301 can be placed on the positioning jig 2 of the material table 14, and the heat sink and the power device 301 after locking the screw are taken off from the positioning jig 2.

[0031] Reference Figures 1 to 5The utility model provides a lock screw machine with the function of point heat -conducting glue, including work table 1, point glue device 3 and lock screw device 6, and point glue device 3 and lock screw device 6 are arranged at point glue station 101 and lock screw station 102 of work table 1 respectively, and work table 1 is movably provided with material table 14 through feeding drive module 12, and feeding drive module 12 drives material table 14 to move back and forth between connection station 103, point glue station 101 and lock screw station 102, and material table 14 is provided with positioning fixture 2, positioning fixture 2 places heat dissipation seat 201 and power device 301 at connection station 103 respectively, at point glue station 101, point glue device 3 points heat -conducting glue 57 on the heat -conducting surface 202 of heat dissipation seat 201, at lock screw station 102, lock screw device 6 locks power device 301 on the heat -conducting surface 202 of heat dissipation seat 201 through screw, and the heat -dissipating surface of power device 301 is tightly attached to the heat -conducting surface 202 of heat dissipation seat 201 through heat -conducting glue 57.

[0032] The lock screw machine with the function of point heat -conducting glue of the utility model points heat -conducting glue 57 on heat dissipation seat 201 through point glue device 3, locks power device 301 and heat dissipation seat 201 through screw through lock screw device 6, carries out point glue operation and lock screw operation to power device 301 and heat dissipation seat 201, positioning fixture 2 on material table 14 can place multiple heat dissipation seats 201 simultaneously, improves point glue and lock screw efficiency, to improve production efficiency.

[0033] In order to improve production efficiency, in the embodiment, referring to Figure 1 , work table 1 is provided with two feeding drive modules 12 side by side, and material table 14 is installed on the sliding table 13 of feeding drive module 12.

[0034] It can be understood that, by the arrangement, two material tables 14 are driven to move by two feeding drive modules 12 respectively, when one material table 14 carries out feeding, the other material table 14 can carry out point glue operation and lock screw operation, to improve production efficiency.

[0035] In order to position heat dissipation seat 201 on positioning fixture 2, in the embodiment, referring to Figure 3 And Figure 4 Positioning fixture 2 includes positioning plate 21 and cover plate 22, the upper end surface of positioning plate 21 is sunk and is provided with positioning groove 23 matched with the shape of heat dissipation seat 201, multiple positioning grooves 23 are arranged on positioning plate 21 at intervals, the heat -conducting surface 202 of heat dissipation seat 201 is higher than the upper end surface of positioning plate 21, cover plate 22 is connected with the boss 24 of the upper end surface of positioning plate 21 through hinge 25, cover plate 22 is reversibly arranged on positioning plate 21 through hinge 25, when cover plate 22 is turned to the above of positioning groove 23 and heat dissipation seat 201, cover plate 22 is pressed on the heat -conducting surface 202 of heat dissipation seat 201.

[0036] It can be understood that, in this way, the heat dissipation seat 201 is provided with a plurality of heat dissipation fins, the heat conduction surface 202 of the heat dissipation seat 201 is a plane, the plurality of positioning grooves 23 on the positioning plate 21 can place a plurality of heat dissipation seats 201, one side of the heat dissipation fin is placed in the heat dissipation seat 201, the heat conduction surface 202 faces upward, when the cover plate 22 is turned over on the positioning plate 21, the cover plate 22 is pressed on the heat conduction surface 202 of the heat dissipation seat 201, and the heat dissipation seat 201 is pressed by the weight of the cover plate 22 itself, so that the heat dissipation seat 201 can be stably positioned on the positioning jig 2.

[0037] In order to align the power device 301 with the heat dissipation seat 201, in the embodiment, referring to Figure 3 and Figure 4 , the cover plate 22 starts to have a positioning hole 26 at the corresponding position of the positioning groove 23, when the cover plate 22 is turned over above the positioning groove 23 and the heat dissipation seat 201, the heat dissipation seat 201 exposes the dispensing area and the first screw hole 203 of the heat conduction surface 202 at the positioning hole 26, the dispensing device 3 dispenses the heat-conducting glue 57 in the dispensing area, the power device 301 is positioned on the heat conduction surface 202 of the heat dissipation seat 201 through the positioning hole 26, and the second screw hole 302 of the power device 301 is aligned with the first screw hole 203 of the heat dissipation seat 201.

[0038] It can be understood that, in this way, after the cover plate 22 presses the heat sink, the dispensing operation is performed on the heat conduction surface 202 of the heat sink through the positioning hole 26 of the cover plate 22, the power device 301 is placed on the heat conduction surface 202 of the heat sink through the positioning hole 26, so as to ensure that the power device 301 is aligned with the heat dissipation seat 201, and the second screw hole 302 of the power device 301 is aligned with the first screw hole 203 of the heat dissipation seat 201, so as to ensure that the screw can accurately lock the power device 301 and the heat dissipation seat 201.

[0039] In order to perform the dispensing operation, in the embodiment, referring to Figure 1 and Figure 2 , the gantry 11 is arranged on the workbench 1, the dispensing device 3 and the screw locking device 6 are arranged on the two sides of the gantry 11 respectively, the dispensing device 3 comprises a first driving assembly 42, a dispensing head 4 and a glue box 5, the first driving assembly 42 is arranged on the gantry 11, the dispensing head 4 is movably arranged on a first lifting seat 46 of the first driving assembly 42 through a dispensing cylinder 41, the glue box 5 is arranged on a dispensing station 101 of the workbench 1, and the dispensing head 4 takes the heat-conducting glue 57 in the glue box 5 under the drive of the first driving assembly 42 and the dispensing cylinder 41, and dispenses on the dispensing area of the heat dissipation seat 201 of the material table 14.

[0040] It can be understood that, thus arranged, the glue box 5 contains the heat-conducting glue 57, the glue head 4 is used to stick the heat-conducting glue 57 of the glue box 5 and is dotted on the heat-conducting surface 202 of the heat sink, the glue head 4 is driven to move by the first driving assembly 42 and the glue cylinder 41, and the glue sticking work is completed.

[0041] In order to ensure that the amount of glue stuck by the glue head 4 is the same each time, in the embodiment, referring to Figure 2 and Figure 5 , the glue box 5 comprises a box body 51 and a rotating disc 52, the rotating disc 52 is arranged in the box body 51 by a motor, the rotating disc 52 contains the heat-conducting glue 57, the box body 51 is provided with a feeding opening 55 and a sticking opening 56, the feeding opening 55 and the sticking opening 56 are separated by a scraper 53, the lower end surface of the scraper 53 cooperates with the rotating disc 52 to scrape the heat-conducting glue 57 on the rotating disc 52, and the glue head 4 sticks the heat-conducting glue 57 at the sticking opening 56 under the drive of the first driving assembly 42 and the glue cylinder 41.

[0042] It can be understood that, thus arranged, the feeding opening 55 is used to add the heat-conducting glue 57 to the rotating disc 52, the sticking opening 56 is used to stick the heat-conducting glue 57 by the glue head 4, the rotating disc 52 is driven by the motor below the workbench 1, the rotating disc 52 rotates in the box body 51, drives the heat-conducting glue 57 in the rotating disc 52 to rotate relative to the scraper 53, the heat-conducting glue 57 is scraped flat under the action of the scraper 53, the heat-conducting glue 57 at the sticking opening 56 is flat under the action of the scraper 53, the lower end surface of the glue head 4 used to stick glue is uneven, after the glue head 4 sticks the heat-conducting glue 57 at the sticking opening 56, the heat-conducting glue 57 at the sticking opening 56 will have a pit, the motor drives the rotating disc 52 to rotate, the heat-conducting glue 57 is scraped flat by the scraper 53, at the same time, the flat heat-conducting glue 57 is rotated to the sticking opening 56, so that the heat-conducting glue 57 stuck by the glue head 4 is flat each time, and it is ensured that the amount of the heat-conducting glue 57 stuck by the glue head 4 is the same each time.

[0043] In order to facilitate the addition of the heat-conducting glue 57, in the embodiment, referring to Figure 5 , a material bin 54 is formed by the inner wall of the box body 51 and the scraper 53, the opening of the upper side of the material bin 54 is the feeding opening 55, and the feeding opening 55 is higher than the sticking opening 56.

[0044] It can be understood that, thus arranged, the scraper 53 on the side of the rotating disc 52 rotating from the feeding opening 55 to the sticking opening 56 is lower, so that the heat-conducting glue 57 is scraped and left in the feeding opening 55 by the scraper 53, and the higher material bin 54 can store more heat-conducting glue 57, thereby reducing the addition frequency of the heat-conducting glue 57.

[0045] In order to install the box body 51, in the embodiment, referring to Figure 5 , a support seat 58 is arranged below the box body 51, and the support seat 58 is fixed with the box body 51 by a plurality of support columns 59.

[0046] It can be understood that, in this way, the box body 51 is connected with the support seat 58 through the four supporting columns 59, the support seat 58 is fixed on the workbench 1, the box body 51 is lifted through the four supporting columns 59, so that the lifting stroke of the glue dispensing head 4 does not need to be too long, and the efficiency of the glue dispensing operation is improved.

[0047] In order to carry out the screwing operation, in the embodiment, referring to Figure 1 , the screwing device 6 comprises a screw feeding box 61, a second driving assembly 7, an electric screwdriver 62 and a lifting cylinder 63, the screw feeding box 61 is installed on the workbench 1, the second driving assembly 7 is arranged on the gantry 11, a mounting seat 75 is arranged on the second lifting seat 74 of the second driving assembly 7, a lifting guide rail 76 is arranged on the mounting seat 75, the electric screwdriver 62 is installed on the sliding seat 67 of the lifting guide rail 76, the lifting cylinder 63 is installed on the mounting seat 75, the driving end of the lifting cylinder 63 is connected with the sliding seat 67, the lifting cylinder 63 drives the sliding seat 67 and the electric screwdriver 62 to move along the lifting guide rail 76, and the mounting seat 75 is provided with a guide sleeve 78 below the electric screwdriver 62 through the support 77.

[0048] It needs to be further explained that the feeding driving module 12 is a first linear module, the first driving assembly 42 is divided into a second linear module 43 and a third linear module 45, the second driving assembly 7 is divided into a fourth linear module 71 and a fifth linear module 73, the first, second, third, fourth and fifth linear modules are all linear modules driven by servo motors, the first linear module is installed on the workbench 1 and drives the sliding table 13 and the material table 14 to move along the X-axis direction, the second linear module 43 and the fourth linear module 71 are respectively installed on the two sides of the gantry 11 and respectively drive the first moving seat 44 and the second moving seat 72 to move along the Y-axis direction, and the third linear module 45 and the fifth linear module 73 are respectively installed on the first moving seat 44 and the second moving seat 72 and respectively drive the first lifting seat 46 and the second lifting seat 74 to move along the Z-axis direction, so as to respectively drive the glue dispensing head 4 and the electric screwdriver 62 to move up and down.

[0049] It can be understood that, in this way, the screw feeding box 61 is fed through vibration, after the second driving assembly 7 drives the electric screwdriver 62 to obtain the screws on the screw feeding box 61, the electric screwdriver 62 is moved to the side of the material table 14 to carry out the screwing operation on the second screw hole 302 of the power device 301 and the first screw hole 203 of the heat sink, in the screwing operation process, the lifting cylinder 63 drives the electric screwdriver 62 to move downward, the electric screwdriver 62 is stabilized through the guide sleeve 78, the electric screwdriver 62 is accurately screwed onto the heat sink, after the screws of the four heat sinks of the positioning jig 2 are screwed, the material table 14 moves with the positioning jig 2 to the connecting work station 103 to unload the heat sink and the power device 301.

[0050] In order to better screwing operation, in this embodiment, reference Figure 1 , the driving end of the lifting cylinder 63 and the sliding seat 67 are provided with a spring 64, the spring 64 is sleeved on the column pin 65, the column pin 65 is fixedly connected with the piston rod of the lifting cylinder 63, the column pin 65 is provided on the connecting table 68 of the sliding seat 67, and the column pin 65 is provided with a baffle 66 at both ends of the spring 64.

[0051] It can be understood that, in this way, in the process of screwing the screw by the electric screwdriver 62, the resistance of the screw gradually increases, and the pressure of the electric screwdriver 62 to the screw also gradually increases, and the spring 64 is used to realize this process. The lifting cylinder 63 drives the electric screwdriver 62 to move downward, and as the resistance of the screw increases, the spring 64 is compressed, so that the pushing force of the spring 64 and the lifting cylinder 63 to the electric screwdriver 62 gradually increases, so that the electric screwdriver 62 has enough friction to screw the screw, and slipping is avoided.

[0052] The working process of the embodiment of the application is as follows: in the docking station 103, four heat sinks are placed in the positioning grooves 23 of the positioning jig 2, and then the cover plate 22 is covered to press the heat sinks. The feeding drive module 12 drives the material table 14 to the glue dispensing station 101. The glue dispensing head 4 sticks the heat-conducting glue 57 at the glue box 5, and then the heat-conducting glue 57 is dispensed on the heat sink through the positioning hole 26. After the heat-conducting glue 57 is dispensed on the four heat sinks, the feeding drive module 12 drives the material table 14 to return to the docking station 103. The operator places the power device 301 on the heat sink through the positioning hole 26. When placing, the back of the power device 301 is attached to the heat-conducting glue 57, and at the same time, the second screw hole 302 of the power device 301 is aligned with the first screw hole 203 of the heat sink. After the four heat sinks are placed with the power device 301, the feeding drive module 12 drives the material table 14 to move to the screw locking station 102. The electric screwdriver 62 obtains the screws at the screw feeding box 61 and screws the screws into the heat sink to lock the power device 301 and the heat sink. After the four heat sinks are screwed, the feeding drive module 12 drives the material table 14 to return to the docking station 103. The operator opens the cover plate 22, takes off the heat sink and the power device 301 from the positioning jig 2 after screwing, and then places new heat sinks. The whole working process only needs manual operation for feeding and discharging. The subsequent feeding and discharging of the heat sink and the power device 301 can be completed by a mechanical hand, the automation degree is improved, the glue dispensing and screw locking operations are automatically completed by the glue dispensing device 3 and the screw locking device 6, the glue dispensing and screw locking efficiency is improved, and the production efficiency is improved.

[0053] The above is not intended to limit the technical scope of the application. Any modification, equivalent change and modification made according to the technical essence of the application to the above embodiments still belongs to the scope of the technical scheme of the application.

Claims

1. A screw locking machine having a point heat conduction glue function, characterized in that, The device comprises a workbench, a glue dispensing device and a screw locking device, the glue dispensing device and the screw locking device are arranged at a glue dispensing station and a screw locking station of the workbench respectively, the workbench is movably provided with a material table through a feeding driving module, the material table is moved back and forth between the connection station, the glue dispensing station and the screw locking station by the feeding driving module, the material table is provided with a positioning jig, the positioning jig is arranged to place a heat sink and a power device at the connection station, at the glue dispensing station, the glue dispensing device dispenses heat-conducting glue on the heat-conducting surface of the heat sink, at the screw locking station, the screw locking device locks the power device on the heat-conducting surface of the heat sink through a screw, and the heat-dissipating surface of the power device is tightly attached to the heat-conducting surface of the heat sink through the heat-conducting glue.

2. The screw locking machine with point heat conduction glue function according to claim 1, characterized in that, The workbench is provided with two feeding driving modules side by side, and the material table is mounted on the sliding table of the feeding driving module.

3. The screw locking machine with point heat conduction glue function according to claim 1, characterized in that, The positioning jig comprises a positioning plate and a cover plate, the upper end surface of the positioning plate is provided with positioning grooves matched with the shape of the heat sink, a plurality of positioning grooves are arranged on the positioning plate, the heat-conducting surface of the heat sink is higher than the upper end surface of the positioning plate, the cover plate is connected with the boss on the upper end surface of the positioning plate through a hinge, and the cover plate is reversibly arranged on the positioning plate through the hinge, when the cover plate is turned over above the positioning grooves and the heat sink, the cover plate is pressed on the heat-conducting surface of the heat sink.

4. The screw locking machine with point heat conduction glue function according to claim 3, characterized in that, The cover plate has positioning holes at positions corresponding to the positioning grooves, when the cover plate is turned over above the positioning grooves and the heat sink, the heat-conducting surface of the heat sink is exposed at the positioning holes, the glue dispensing device dispenses heat-conducting glue in the glue dispensing area, the power device is positioned on the heat-conducting surface of the heat sink through the positioning holes, and the second screw hole of the power device is aligned with the first screw hole of the heat sink.

5. The screw locking machine with point heat conduction glue function according to claim 4, characterized in that, The workbench is provided with a gantry, the glue dispensing device and the screw locking device are arranged on the two sides of the gantry respectively, the glue dispensing device comprises a first driving assembly, a glue dispensing head and a glue box, the first driving assembly is arranged on the gantry, the glue dispensing head is movably arranged on the first lifting seat of the first driving assembly through a glue dispensing cylinder, the glue box is arranged at the glue dispensing station of the workbench, and the glue dispensing head sticks to the heat-conducting glue in the glue box and dispenses the heat-conducting glue on the glue dispensing area of the heat sink of the material table under the driving of the first driving assembly and the glue dispensing cylinder.

6. The screw locking machine with point heat conduction glue function according to claim 5, characterized in that, The glue box comprises a box body and a rotating disc, the rotating disc is rotatably arranged in the box body through a motor, the heat-conducting glue is contained in the rotating disc, the box body is provided with a feeding opening and a sticking opening, the feeding opening and the sticking opening are separated by a scraper, the lower end surface of the scraper cooperates with the rotating disc to scrape the heat-conducting glue on the rotating disc, and the glue dispensing head sticks to the heat-conducting glue at the sticking opening under the driving of the first driving assembly and the glue dispensing cylinder.

7. The screw locking machine with point heat conduction glue function according to claim 6, characterized in that, The inner wall of the box body and the scraper form a material bin, the opening on the upper side of the material bin is the feeding opening, and the feeding opening is higher than the sticking opening.

8. The screw locking machine with point heat conduction glue function according to claim 6, characterized in that, A supporting seat is arranged below the box body, and the supporting seat is fixed with the box body through a plurality of supporting columns.

9. The screw locking machine with point heat conduction glue function according to claim 5, characterized in that, The screw locking device comprises a screw feeding box, a second driving assembly, an electric screwdriver and a lifting cylinder, the screw feeding box is installed on a workbench, the second driving assembly is arranged on a portal frame, a mounting seat is arranged on a second lifting seat of the second driving assembly, a lifting guide rail is arranged on the mounting seat, the electric screwdriver is installed on a sliding seat of the lifting guide rail, the lifting cylinder is installed on the mounting seat, a driving end of the lifting cylinder is connected with the sliding seat, the lifting cylinder drives the sliding seat and the electric screwdriver to move along the lifting guide rail, and a guide sleeve is arranged below the electric screwdriver through a support of the mounting seat.

10. The screw locking machine with point heat conduction glue function according to claim 9, characterized in that, A spring is arranged between the driving end of the lifting cylinder and the sliding seat, the spring is sleeved on a column pin, the column pin is fixedly connected with a piston rod of the lifting cylinder, the column pin is arranged on a connecting table of the sliding seat, and a baffle is arranged on both ends of the column pin.

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