Screwing machine for electronic production

Abstract

The invention relates to a screw driving machine for electronic production, and relates to the technical field of electronic product production, the screw driving machine comprises a screw conveying device and an assembling workbench, a portal frame is installed on the assembling workbench, a screw locking assembly is slidably installed on the portal frame, and a material carrying assembly is slidably installed on the portal frame; a sliding objective table is slidably mounted on the assembly working table, and a positioning tool is fixed on the sliding objective table; the material carrying assembly is used for carrying a circuit board and an electronic product shell, and the positioning tool is used for limiting the electronic product shell; the screw conveying device is connected with a screw storage barrel through a screw conveying pipe, and a screw limiting assembly is installed at the end, close to the screw locking assembly, of the screw storage barrel. The screw locking assembly controls the screw limiting assembly to act, so that a single screw enters the screw locking assembly. The method has the effect of preventing jamming.

Description

Technical Field

[0001] The present application relates to the technical field of electronic production, and in particular to a screw driving machine for electronic production. Background Art

[0002] With the development of science and technology, electronic products have become an indispensable part of our daily life. In the process of assembling electronic products, a large number of screws are needed to fix the circuit board and the electronic product shell together. In the traditional production process, manual screwing is used, which is inefficient. With the advancement of technology, machines are used for screwing. The Chinese patent with patent publication number: CN214054322U discloses an automatic screw driving machine that can easily change the type of workpiece. "The screws in the air guide tube are transported to the screw driving mechanism through an air pump." When there are multiple screws in the air guide tube, it is easy to cause them to get stuck in the screw driving mechanism, affecting the efficiency of screw driving. Summary of the invention

[0003] The purpose of the present application is to provide a screw driving machine for electronic production to solve the technical problem that "when there are multiple screws in the air duct, they are easily stuck in the screw driving mechanism, affecting the efficiency of screw driving".

[0004] A screw driving machine for electronic production provided in the present application adopts the following technical solution: it includes a screw conveying device and an assembly workbench, a gantry is installed on the assembly workbench, a screw locking assembly is slidably installed on the gantry, a material handling assembly is slidably installed on the gantry, a sliding platform is slidably installed on the assembly workbench, and a positioning tool is fixed on the sliding platform; the material handling assembly is used to transport circuit boards and electronic product casings, and the positioning tool is used to limit electronic product casings; the screw conveying device is connected to a screw storage cylinder through a screw conveying tube, and a screw limiting assembly is installed on one end of the screw storage cylinder close to the screw locking assembly; the screw locking assembly controls the action of the screw limiting assembly to allow a single screw to enter the screw locking assembly.

[0005] Optionally, the screw locking assembly includes a transverse sliding block slidably mounted on the gantry, a first vertical support platform is fixed on the transverse sliding block, a first vertical sliding block is slidably mounted on the first vertical support platform, a second vertical support platform is slidably mounted on the first vertical sliding block, a second vertical sliding block is mounted on the second vertical support platform, a locking motor is mounted on the second vertical sliding block, and a locking screwdriver is mounted on the output end of the locking motor; a screw stage is mounted on the lower end of the second vertical support platform, a screw positioning tube is mounted on the screw stage, and the screw positioning A screw clamping assembly is installed at the lower end of the tube; the screw storage tube is installed on one side of the screw positioning tube; the locking screwdriver can pass through the screw positioning tube; a transverse conveying motor is installed on the gantry, and a transverse screw is installed at the output end of the transverse conveying motor, and the transverse screw is threadedly connected to the transverse sliding block; a first locking screw is rotatably installed on the first vertical support platform, and the first locking screw controls the movement of the first vertical sliding block, and a first lifting motor is installed on the first vertical support platform; a telescopic part that controls the movement of the second vertical sliding block is installed on the second vertical support platform.

[0006] Optionally, the screw storage tube is tilted and fixed on one side of the screw positioning tube, and the screw limiting assembly includes a telescopic spring opened on the lower side of the screw storage tube, a limiting slide rod fixed at the lower end of the telescopic spring, the limiting slide rod passes through the screw storage tube, and the limiting slide rod is slidably connected to the screw storage tube; a push plate is installed at the lower end of the limiting slide rod, a sliding channel is opened on the screw positioning tube, the sliding channel is slidably connected to the push plate, a push ring is rotatably installed on the locking screwdriver, a push protrusion is fixed on the push ring, the push protrusion is slidably connected to the sliding channel, and the push protrusion is used to push the push plate to slide in the sliding channel; the distance between the limiting slide rod and the locking screwdriver is greater than the length of one screw and less than the length of two screws.

[0007] Optionally, the screw clamping assembly includes a plurality of hinged plates fixed to the lower end of the screw positioning tube, a chuck is hinged on the hinged plate, a limiting spring plate is fixed on the upper side of the chuck, the limiting spring plate is in contact with the hinged plate, and the limiting spring plate is used to make the chuck generate a clamping force; an arc groove is provided on the side of the chuck close to the screw.

[0008] Optionally, the screw conveying device includes a feeding component, a screw conveying component and a screw blowing component; the feeding component includes a screw feeding bin, a screw feeding turntable is rotatably installed on the screw feeding bin, an arc-shaped return plate is installed in the screw feeding bin, the side of the arc-shaped return plate close to the screw feeding turntable is in contact with the screw feeding turntable, a feeding motor is installed on the screw feeding bin, the feeding motor is used to drive the screw feeding turntable to rotate, a plurality of arc-shaped screw lifting plates are installed in the screw feeding turntable, the arc-shaped screw lifting plates are used to lift the screws and drop the screws from a high place onto the screw conveying component; the arc-shaped return plate has a larger radius at one end close to the screw feeding turntable, and a smaller radius at one end away from the screw feeding turntable, and the radius of the arc-shaped return plate at one end close to the screw feeding turntable is equal to the inner diameter of the screw feeding turntable.

[0009] Optionally, the screw conveying assembly includes a vibration table, a vibration motor installed on the vibration table, a vibration spring installed on the vibration table, and a vibration support frame installed on the upper end of the vibration spring, a screw conveying bar is fixed on the vibration support frame, and a T-shaped channel is opened on the screw conveying bar; one end of the screw conveying bar extends to the center position of the screw feeding turntable, and the end of the screw conveying bar away from the screw feeding turntable is connected to the screw blowing assembly; a pair of screw receiving plates are installed on the end of the screw conveying bar close to the screw feeding turntable, and the screw receiving plates form a V-shaped structure, and the screw receiving plates are used to allow the screws to be placed into the T-shaped channel.

[0010] Optionally, the screw blowing assembly includes a screw blowing platform, a screw blowing groove is provided on the screw blowing platform, the bottom of the screw blowing groove is flush with the bottom of the T-shaped channel, a screw displacement turntable is installed in the screw blowing groove, a plurality of screw positioning grooves are provided on the screw displacement turntable, a screw drop hole is provided on the screw blowing platform, a three-way pipe is fixed on the lower side of the screw blowing platform, one end of the three-way pipe is aligned with the screw drop hole, the end of the three-way pipe away from the screw drop hole is connected to the screw delivery pipe, and an air pump is installed on the side of the three-way pipe; a first electromagnetic sensor is installed on the end of the three-way pipe close to the screw delivery pipe, and a second electromagnetic sensor is installed on the screw storage tube, the second electromagnetic sensor and the first electromagnetic sensor are electrically connected to the air pump, a vibration motor, a feeding motor and a turntable drive; a turntable drive is installed on the lower side of the screw blowing platform, and the turntable drive drives the screw displacement turntable to rotate in steps.

[0011] Optionally, the screw conveying bar includes an inclined conveying section, a flip conveying section and a horizontal conveying section; the screw receiving plate is installed at one end of the inclined conveying section close to the screw feeding turntable, and a plurality of laser sensors are installed on the horizontal conveying section, and the laser sensors are electrically connected to the vibration motor and the feeding motor.

[0012] Optionally, the material handling assembly includes an extension slide rail fixedly mounted on the gantry, a transverse transport slider is slidably mounted on the extension slide rail, a vertical transport slider is fixed on the transverse transport slider, a vertical transport slider is slidably mounted on the vertical transport slider, a transport bracket is fixed on the vertical transport slider, and a transport adsorption assembly is installed on the lower end of the transport bracket; a transverse transport motor is fixed on the gantry, a transverse transport screw is installed on the output end of the transverse transport motor; the transverse transport screw is used to control the horizontal movement of the transverse transport slider on the extension slide rail; a vertical transport motor is fixed on the vertical transport slider, and a vertical transport screw is installed on the vertical transport motor.

[0013] Optionally, the transport and adsorption assembly includes a transport plate installed on the transport bracket, an adjustment plate installed at the lower end of the transport bracket, a negative pressure pump generating suction is installed on the transport plate, a plurality of strip grooves are opened on the adjustment plate, a suction cup is installed in the strip groove, the suction cup is connected to the negative pressure pump through a spring tube, and the suction cup is locked in the strip groove by a pair of nuts, and the nuts are respectively located on the upper and lower sides of the adjustment plate.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the screw driving process, the electronic product housing is placed on the fixed positioning fixture on the sliding stage through the material handling component, and then the circuit board is placed on the electronic product housing for assembly. The screws are transported to the screw storage cylinder through the screw conveying component, and then the screw limit component cooperates with the screw locking component. After each screw is installed in the screw locking component, another screw will enter the screw locking component from the screw storage cylinder, thereby effectively preventing multiple screws from entering the screw locking component at one time and causing jamming. 2. The electronic product housing and circuit board are transported by the material handling assembly. The electronic product housing is first placed on the positioning fixture, and then the circuit board is placed in the electronic product housing for assembly. Finally, the circuit board is locked by the screw locking assembly, thereby reducing the manual assembly of the electronic product housing and the circuit board, thereby improving production efficiency; 3. The screws are stored in the screw storage cylinder through the screw conveying device, which can improve the efficiency of screw installation. At the same time, the screw conveying device does not need to be in the open state all the time, which can reduce the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 This is a schematic diagram of the connection structure between the screw locking assembly and the gantry frame in an embodiment of the present application; Figure 3This is a schematic diagram of the structure of a screw locking assembly according to an embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the screw positioning tube and the screw limiting assembly according to an embodiment of the present application; Figure 5 This is a schematic diagram of the structure of a screw conveying device according to an embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the feeding assembly of the embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the screw conveying assembly of the embodiment of the present application; Figure 8 This is a schematic diagram of the structure of a screw blowing assembly according to an embodiment of the present application; Fig. 9 This is a schematic diagram of the side structure of the screw blowing assembly of the embodiment of the present application; Fig.10 It is a schematic diagram of the structure of the material handling component of the embodiment of the present application; Fig.11 It is a schematic diagram of the structure of the handling and adsorption component of an embodiment of the present application.

[0016] In the figure, 1, screw conveying device; 11, feeding assembly; 111, screw feeding bin; 112, screw feeding turntable; 113, arc-shaped return plate; 114, feeding motor; 115, arc-shaped screw lifting plate; 12, screw conveying assembly; 121, vibration table; 122, vibration motor; 123, vibration shrapnel; 124, screw conveying bar; 1241, inclined conveying section; 1242, flip conveying section; 1243, horizontal conveying section; 1244, laser sensor; 125, T-channel; 126, screw receiving plate; 127, vibration Dynamic support frame; 13, screw blowing assembly; 131, screw blowing platform; 132, screw blowing groove; 133, screw displacement turntable; 134, screw positioning groove; 135, screw drop hole; 136, three-way pipe; 137, air pump; 138, first electromagnetic sensor; 139, turntable drive; 2, assembly workbench; 3, gantry; 31, horizontal conveying motor; 32, horizontal screw rod; 33, horizontal transport motor; 34, horizontal transport screw rod; 4, screw locking assembly; 41, horizontal sliding block; 42, first vertical support platform; 421 , first locking screw; 422, first lifting motor; 43, first vertical sliding block; 44, second vertical support platform; 441, telescopic member; 45, second vertical sliding block; 46, locking motor; 47, locking screwdriver; 471, push ring; 472, push protrusion; 48, screw stage; 49, screw positioning tube; 491, sliding channel; 492, hinge plate; 493, chuck; 494, limit spring; 495, arc groove; 410, screw clamping assembly; 5, material handling assembly; 51, extension slide rail; 52, horizontal Carrying slider; 53, vertical carrying slide plate; 531, vertical carrying motor; 532, vertical carrying screw rod; 54, vertical carrying slider; 55, carrying bracket; 56, carrying adsorption assembly; 561, carrying plate; 562, adjusting plate; 563, negative pressure pump; 564, strip groove; 565, suction cup; 566, spring tube; 6, sliding platform; 61, positioning tool; 7, screw delivery tube; 8, screw storage cylinder; 81, second electromagnetic sensor; 9, screw limit assembly; 91, telescopic spring; 92, limit slide rod; 93, push plate. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 -Attached Fig.11 , further details of this application are given.

[0018] Reference Figure 1A screw driving machine for electronic production comprises a screw conveying device 1 and an assembly workbench 2, a gantry 3 is installed on the assembly workbench 2, a screw locking assembly 4 is slidably installed on the gantry 3, a material handling assembly 5 is slidably installed on the gantry 3, a sliding platform 6 is slidably installed on the assembly workbench 2, and a positioning tool 61 is fixed on the sliding platform 6; the material handling assembly 5 is used to carry circuit boards and electronic product shells, and the positioning tool 61 is used to limit the electronic product shell; the screw conveying device 1 is connected to a screw storage cylinder 8 through a screw conveying tube 7, and a screw limiting assembly 9 is installed at one end of the screw storage cylinder 8 close to the screw locking assembly 4; the screw locking assembly 4 controls the action of the screw limiting assembly 9 to allow a single screw to enter the screw locking assembly 4; In the process of assembling the electronic product, the electronic product housing is transported to the sliding stage 6 by the material handling assembly 5 and placed on the positioning fixture 61. The material handling assembly 5 then places the circuit board in the electronic product housing, and the circuit board and the electronic product are preliminarily assembled. After the circuit board and the electronic product housing are preliminarily assembled, the screws are tightened by the screw locking assembly 4 to assemble the circuit board and the electronic product housing together. The material handling component 5 and the screw locking component 4 can move laterally on the gantry 3 (moving along the X-axis direction), and the sliding stage 6 can move longitudinally on the assembly workbench 2 (moving along the Y-axis direction), so that the material handling component 5 can put the electronic product shell onto the positioning tool 61 (through the X-axis and Y-axis coordinates), and the screw locking component 4 locks the screw at the set point; The screw conveying device 1 conveys the screws to the screw storage tube 8. The screw limiting component 9 is under the control of the screw locking component 4. Each time the screw locking component 4 locks a screw, the screw limiting component 9 is actuated once, so that a screw enters the screw locking component 4 from the screw storage tube 8, thereby effectively preventing multiple screws from entering the screw locking component 4 at one time, causing the screw locking component 4 to get stuck and affecting production efficiency.

[0019] Refer to Figure 2. Figure 3The screw locking assembly 4 includes a transverse sliding block 41 slidably mounted on the gantry 3, a first vertical support platform 42 is fixed on the transverse sliding block 41, a first vertical sliding block 43 is slidably mounted on the first vertical support platform 42, a second vertical supporting platform 44 is slidably mounted on the first vertical sliding block 43, a second vertical supporting platform 44 is mounted on the second vertical sliding block 45, a locking motor 46 is mounted on the second vertical sliding block 45, and a locking screwdriver 47 is mounted on the output end of the locking motor 46; a screw stage 48 is mounted on the lower end of the second vertical supporting platform 44, a screw positioning tube 49 is mounted on the screw stage 48, and the lower end of the screw positioning tube 49 A screw clamping assembly 410 is installed; a screw storage tube 8 is installed on one side of a screw positioning tube 49; a locking screwdriver 47 can pass through the screw positioning tube 49; a transverse conveying motor 31 is installed on the gantry 3, and a transverse screw rod 32 is installed on the output end of the transverse conveying motor 31, and the transverse screw rod 32 is threadedly connected with the transverse sliding block 41; a first locking screw rod 421 is rotatably installed on the first vertical support platform 42, and the first locking screw rod 421 controls the movement of the first vertical sliding block 43, and a first lifting motor 422 is installed on the first vertical support platform 42; a telescopic member 441 for controlling the movement of the second vertical sliding block 45 is installed on the second vertical support platform 44; When the screw locking assembly 4 is tightening the screw, the horizontal conveying motor 31 controls the horizontal screw rod 32 to rotate, controls the screw locking assembly 4 to move horizontally on the gantry 3 (move along the X-axis direction), and the first lifting motor 422 installed on the first vertical support platform 42 controls the first locking screw rod 421 to rotate, controls the first vertical sliding block 43 to move vertically on the first vertical support platform 42, and the screw loading platform 48 fixedly installed on the second vertical support platform 44 moves downward to align the screw positioning tube 49 with the screw hole. At this time, the telescopic member 441 (electric telescopic rod or cylinder) controls the second vertical sliding block 45 to move downward, and the locking motor 46 controls the locking screwdriver 47 to rotate, thereby locking the screw to fix the circuit board and the electronic product casing together.

[0020] Reference Figure 3 , Figure 4, the screw storage tube 8 is tilted and fixed on one side of the screw positioning tube 49, the screw limiting assembly 9 includes a telescopic spring 91 provided on the lower side of the screw storage tube 8, a limiting slide rod 92 fixed on the lower end of the telescopic spring 91, the limiting slide rod 92 passes through the screw storage tube 8, and the limiting slide rod 92 is slidably connected with the screw storage tube 8; a push plate 93 is installed at the lower end of the limiting slide rod 92, a sliding channel 491 is provided on the screw positioning tube 49, the sliding channel 491 is slidably connected with the push plate 93, a push ring 471 is rotatably installed on the locking screwdriver 47, a push protrusion 472 is fixed on the push ring 471, the push protrusion 472 is slidably connected with the sliding channel 491, and the push protrusion 472 is used to push the push plate 93 to slide in the sliding channel 491; the distance between the limiting slide rod 92 and the locking screwdriver 47 is greater than the length of one screw and less than the length of two screws; In the process of the screw entering the screw positioning tube 49 from the screw storage tube 8, it is blocked by the screw limiting assembly 9. When the locking screwdriver 47 is pushed downward by the telescopic part 441, the push ring 471 moves, and the push protrusion 472 pushes the push plate 93 to move downward. At this time, the limiting slide rod 92 moves downward to open the channel of the screw storage tube 8, and a screw enters between the limiting slide rod 92 and the locking screwdriver 47. When the locking screwdriver 47 moves upward under the action of the telescopic part 441, the screw between the limiting slide rod 92 and the locking screwdriver 47 enters the screw positioning tube 49 and is clamped by the screw clamping assembly 410. The locking screwdriver 47 applies external force to the screw during the process of the telescopic part 441 pushing the screw downward, and the screw clamping assembly 410 is stretched open, so that the screw is inserted into the screw hole, and the locking motor 46 controls the locking screwdriver 47 to rotate to lock the screw.

[0021] The distance between the limiting slide rod 92 and the locking screwdriver 47 is greater than the length of one screw and less than the length of two screws; so that only one screw can be reserved between the limiting slide rod 92 and the locking screwdriver 47, further preventing multiple screws from entering the screw positioning tube 49 and causing jamming.

[0022] Reference Figure 3 , Figure 4 The screw clamping assembly 410 includes a plurality of hinged plates 492 fixed to the lower end of the screw positioning tube 49, a chuck 493 is hingedly connected to the hinged plate 492, a limiting spring sheet 494 is fixed on the upper side of the chuck 493, the limiting spring sheet 494 is fitted with the hinged plate 492, and the limiting spring sheet 494 is used to make the chuck 493 generate a clamping force; an arc groove 495 is provided on the side of the chuck 493 close to the screw; Four hinge plates 492 are fixed to the lower end of the screw positioning tube 49, and a clamp 493 is hinged on each hinge plate 492. The four clamps 493 position the screw from four directions, so that the screw is vertically downward. When the locking screwdriver 47 pushes the screw to move, the clamp 493 generates a clamping force under the action of the limiting spring 494. An arc groove 495 is provided on the side of the clamp 493 close to the screw. The arc groove 495 limits the moving trajectory of the screw, thereby improving the stability of the screw during movement and the accuracy of screw locking. When the screw is tightened, the locking screwdriver 47 moves upward under the traction of the telescopic part 441, and the chuck 493 moves closer to each other under the action of the limiting spring piece 494. The screw between the limiting slide rod 92 and the locking screwdriver 47 enters the screw positioning tube 49, and the chuck 493 clamps the screw for the next tightening.

[0023] Reference Figure 5 , Figure 6 The screw conveying device 1 includes a feeding component 11, a screw conveying component 12 and a screw blowing component 13; the feeding component 11 includes a screw feeding bin 111, a screw feeding turntable 112 is rotatably installed on the screw feeding bin 111, an arc-shaped return plate 113 is installed in the screw feeding bin 111, and the arc-shaped return plate 113 is close to the side of the screw feeding turntable 112 and fits with the screw feeding turntable 112, and a feeding motor 114 is installed on the screw feeding bin 111, and the feeding motor 114 is used to The screw feeding turntable 112 is driven to rotate. A plurality of arc-shaped screw lifting plates 115 are installed in the screw feeding turntable 112. The arc-shaped screw lifting plates 115 are used to lift the screws and put the screws from a high place onto the screw conveying assembly 12; the arc-shaped return plate 113 has a large radius at one end close to the screw feeding turntable 112, and a small radius at one end of the arc-shaped return plate 113 away from the screw feeding turntable 112. The radius of the arc-shaped return plate 113 at one end close to the screw feeding turntable 112 is equal to the inner diameter of the screw feeding turntable 112; During the process of screw feeding, the screws are put into the screw feeding turntable 112, the feeding motor 114 drives the screw feeding turntable 112 to rotate, the arc screw lifting plate 115 lifts the screws to a high place and then performs free fall motion, the screws fall onto the screw conveying assembly 12, the screw conveying assembly 12 conveys the screws to the screw blowing assembly 13, and the screw blowing assembly 13 conveys the screws to the screw storage cylinder 8; the screws that fail to fall onto the screw conveying assembly 12 can pass through the arc return plate 113 and return to the screw feeding turntable 112 again, and are lifted and put into the screw again by the arc screw lifting plate 115; The radius of the arc-shaped return plate 113 at one end close to the screw loading turntable 112 is larger, and the radius of the arc-shaped return plate 113 at one end away from the screw loading turntable 112 is smaller. The radius of the arc-shaped return plate 113 at one end close to the screw loading turntable 112 is equal to the inner diameter of the screw loading turntable 112, thereby forming a slope structure, which makes it easier for the screws that fail to fall on the screw conveying assembly 12 to pass through the arc-shaped return plate 113 and return to the screw loading turntable 112 again, and be lifted and dropped again by the arc-shaped screw lifting plate 115; at the same time, the side of the arc-shaped return plate 113 close to the screw loading turntable 112 is in contact with the screw loading turntable 112, which can effectively prevent the screws from being stuck in the gap between the arc-shaped return plate 113 and the screw loading turntable 112, causing equipment damage.

[0024] Reference Figure 5 , Figure 6 , Figure 7 The screw conveying assembly 12 includes a vibration table 121, a vibration motor 122 installed on the vibration table 121, a vibration spring 123 installed on the vibration table 121, and a vibration support frame 127 installed on the upper end of the vibration spring 123. A screw conveying bar 124 is fixed on the vibration support frame 127, and a T-shaped channel 125 is opened on the screw conveying bar 124; one end of the screw conveying bar 124 extends to the center position of the screw feeding turntable 112, and the end of the screw conveying bar 124 away from the screw feeding turntable 112 is connected to the screw blowing assembly 13; a pair of screw receiving plates 126 are installed on the end of the screw conveying bar 124 close to the screw feeding turntable 112, and the screw receiving plates 126 form a V-shaped structure, and the screw receiving plates 126 are used to put the screws into the T-shaped channel 125; During the feeding process, the screws are rotated by the screw feeding turntable 112 and lifted and dropped by the arc-shaped screw lifting plate 115, and fall on the screw receiving plate 126 forming a V-shaped structure. The screws enter the T-shaped channel 125 opened on the screw conveying bar 124 along the screw receiving plate 126, and the vibration motor 122 generates simple harmonic vibration, so that the screws are displaced in the T-shaped channel 125, so that the screws move from one end of the screw conveying bar 124 close to the screw feeding turntable 112 to the end close to the screw blowing assembly 13; The vibration support frame 127 is connected to the vibration platform 121 through the vibration spring piece 123. When the vibration motor 122 generates vibration, the vibration amplitude can be effectively amplified by inertia, thereby improving the efficiency of screw transportation.

[0025] Reference Figure 5 , Figure 8 , Fig. 9The screw blowing assembly 13 includes a screw blowing platform 131, a screw blowing groove 132 is provided on the screw blowing platform 131, the bottom of the screw blowing groove 132 is flush with the bottom of the T-shaped channel 125, a screw displacement turntable 133 is installed in the screw blowing groove 132, a plurality of screw positioning grooves 134 are provided on the screw displacement turntable 133, a screw drop hole 135 is provided on the screw blowing platform 131, a three-way pipe 136 is fixed to the lower side of the screw blowing platform 131, one end of the three-way pipe 136 is aligned with the screw drop hole 135, and the three-way pipe 136 is away from the screw drop hole 135. One end of the drop hole 135 is connected to the screw delivery pipe 7, and an air pump 137 is installed on the side of the three-way pipe 136; a first electromagnetic sensor 138 is installed on the end of the three-way pipe 136 close to the screw delivery pipe 7, and a second electromagnetic sensor 81 is installed on the screw storage cylinder 8. The second electromagnetic sensor 81 and the first electromagnetic sensor 138 are electrically connected to the air pump 137, the vibration motor 122, the feeding motor 114 and the turntable driver 139; a turntable driver 139 is installed on the lower side of the screw blowing platform 131, and the turntable driver 139 drives the screw displacement turntable 133 to rotate step by step; When the screw is transported to the screw blowing assembly 13 through the screw conveying assembly 12, the screw is put into the screw blowing groove 132. The screw blowing platform 131 is a circular structure, and four screw blowing grooves 132 are opened on the screw blowing platform 131. The screw displacement turntable 133 is driven to rotate by the turntable driving member 139 (the turntable driving member 139 is a stepping motor). When the screw positioning groove 134 is aligned with the screw drop hole 135, it automatically falls to the lower end of the three-way pipe 136. At this time, the first electromagnetic sensor 138 senses the passage of the screw, controls the turntable driving member 139 to rotate, and blocks the screw drop hole 135 through the screw displacement turntable 133. At the same time, the air pump 137 at the side end of the three-way pipe 136 is controlled to operate, and the screw is blown along the screw conveying pipe 7 to the screw storage tube 8; in order to make the air flow more smooth, an air hole can be opened on the screw storage tube 8; A second electromagnetic sensor 81 is installed on the screw storage cylinder 8. The second electromagnetic sensor 81 is used to determine the number of screws in the screw storage cylinder 8. When the number of screws in the screw storage cylinder 8 is insufficient, the screw conveying device 1 is controlled to add screws to the screw storage cylinder 8. The second electromagnetic sensor 81 is installed in the middle position of the screw storage tube 8. When the height of the screws in the screw storage tube 8 is lower than the position of the second electromagnetic sensor 81, the screw conveying device 1 is controlled to add screws to the screw storage tube 8, so that the screw conveying device 1 does not need to work all the time, which can reduce the generation of noise.

[0026] Reference Figure 5 , Figure 6 , Figure 7The screw conveying bar 124 includes an inclined conveying section 1241, a flip conveying section 1242 and a horizontal conveying section 1243. The screw receiving plate 126 is installed on the inclined conveying section 1241 near one end of the screw feeding turntable 112. The inclined conveying section 1241 is close to the screw feeding turntable 112. When the screw is put on the screw receiving plate 126, the threaded end of the screw with the downward thread can enter the T-shaped channel 125 along the screw receiving plate 126 in time, and the screw with the big head downward can fall on the arc return plate 113 along the inclined surface of the screw conveying bar 124 in time, and slide into the screw feeding turntable 112, which can effectively prevent the screw from being stuck in the T-shaped channel 125 and affecting the efficiency of screw conveying. The screws are put on the screw conveying bar 124, and are placed in the T-shaped channel 125 in the inclined conveying section 1241. After being turned over by the turning conveying section 1242, the screws enter the horizontal conveying section 1243, and are arranged vertically in the T-shaped channel 125. The screws that are not correctly put into the T-shaped channel 125 can fall onto the arc-shaped return plate 113 in time in the inclined conveying section 1241, thereby effectively reducing the screws from getting stuck in the T-shaped channel 125. A plurality of laser sensors 1244 are installed on the horizontal conveying section 1243, and the laser sensors 1244 are electrically connected to the vibration motor 122 and the feeding motor 114. The laser sensors 1244 are respectively located at both ends and the middle of the horizontal conveying section 1243. When the number of screws on the horizontal conveying section 1243 is less than the laser sensor 1244 in the middle, the vibration motor 122 and the feeding motor 114 are controlled to operate and add screws to the horizontal conveying section 1243. Therefore, when there are sufficient screws on the horizontal conveying section 1243, the feeding motor 114 does not work, thereby reducing noise generation again.

[0027] Reference Fig.10 , Fig.11 The material handling assembly 5 includes an extension rail 51 fixedly mounted on the gantry 3, a transverse handling slider 52 is slidably mounted on the extension rail 51, a vertical handling slider 53 is fixed on the transverse handling slider 52, a vertical handling slider 54 is slidably mounted on the vertical handling slider 53, a handling bracket 55 is fixed on the vertical handling slider 54, and a handling adsorption assembly 56 is mounted on the lower end of the handling bracket 55; a transverse handling motor 33 is fixed on the gantry 3, and a transverse handling screw 34 is mounted on the output end of the transverse handling motor 33; the transverse handling screw 34 is used to control the horizontal movement of the transverse handling slider 52 on the extension rail 51; a vertical handling motor 531 is fixed on the vertical handling slider 53, and a vertical handling screw 532 is mounted on the vertical handling motor 531; The extension slide 51 extends to the assembly line, and the electronic product housing and circuit board are transported to the bottom of the extension slide 51 through the production assembly line. The lateral transport motor 33 controls the rotation of the lateral transport screw 34, and controls the lateral movement of the material transport assembly 5 to transport the electronic product housing and circuit board and place them on the positioning tool 61; the vertical transport motor 531 controls the rotation of the vertical transport screw 532, and controls the movement of the vertical transport slider 54, so that the transport adsorption assembly 56 can transport the electronic product housing and circuit board.

[0028] Reference Fig.10 , Fig.11 The transport and adsorption assembly 56 includes a transport plate 561 mounted on the transport bracket 55, an adjustment plate 562 mounted at the lower end of the transport bracket 55, a negative pressure pump 563 generating suction force mounted on the transport plate 561, a plurality of strip grooves 564 are provided on the adjustment plate 562, a suction cup 565 is mounted in the strip groove 564, the suction cup 565 is connected to the negative pressure pump 563 through a spring tube 566, and the suction cup 565 is locked in the strip groove 564 through a pair of nuts, which are respectively located at the upper and lower sides of the adjustment plate 562; When the suction cup 565 is attached to the electronic product housing or circuit board, the negative pressure pump 563 generates negative pressure to adsorb the electronic product housing or circuit board onto the transport adsorption assembly 56. When the transport adsorption assembly 56 is aligned with the positioning fixture 61, the negative pressure pump 563 stops working, the electronic product housing is placed in the positioning fixture 61, and then the transported circuit board is placed in the electronic product housing; The suction cup 565 is locked in the strip groove 564 by a pair of nuts, which are respectively located on the upper and lower sides of the adjustment plate 562. The position of the suction cup 565 can be adjusted by loosening and tightening the nuts, so that electronic product housings and circuit boards of different sizes can be transported.

[0029] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screw driving machine for electronic production, comprising a screw conveying device (1) and an assembly workbench (2), characterized in that: A gantry (3) is mounted on the assembly workbench (2), a screw locking assembly (4) is slidably mounted on the gantry (3), a material handling assembly (5) is slidably mounted on the gantry (3), a sliding platform (6) is slidably mounted on the assembly workbench (2), and a positioning tool (61) is fixed on the sliding platform (6); the material handling assembly (5) is used to transport circuit boards and electronic product shells, and the positioning tool (61) is used to limit electronic product shells; the screw conveying device (1) is connected to a screw storage cylinder (8) through a screw conveying tube (7), and a screw limiting assembly (9) is mounted on one end of the screw storage cylinder (8) close to the screw locking assembly (4); the screw locking assembly (4) controls the action of the screw limiting assembly (9) so that a single screw enters the screw locking assembly (4).

2. A screw driving machine for electronic production according to claim 1, characterized in that: The screw locking assembly (4) comprises a transverse sliding block (41) slidably mounted on the gantry (3); a first vertical support platform (42) is fixed on the transverse sliding block (41); a first vertical sliding block (43) is slidably mounted on the first vertical support platform (42); a second vertical supporting platform (44) is slidably mounted on the first vertical sliding block (43); a second vertical supporting platform (44) is slidably mounted on the second vertical sliding block (45); a locking motor (46) is mounted on the second vertical sliding block (45); a locking screwdriver (47) is mounted on the output end of the locking motor (46); a screw stage (48) is mounted on the lower end of the second vertical supporting platform (44); a screw positioning tube (49) is mounted on the screw stage (48); a screw positioning tube (49) is mounted on the lower end of the screw positioning tube (49). A screw clamping assembly (410) is installed; the screw storage tube (8) is installed on one side of the screw positioning tube (49); the locking screwdriver (47) passes through the screw positioning tube (49); a transverse conveying motor (31) is installed on the gantry (3), and a transverse screw rod (32) is installed at the output end of the transverse conveying motor (31), and the transverse screw rod (32) is threadedly connected to the transverse sliding block (41); a first locking screw rod (421) is rotatably installed on the first vertical support platform (42), and the first locking screw rod (421) controls the movement of the first vertical sliding block (43), and a first lifting motor (422) is installed on the first vertical support platform (42); a telescopic member (441) for controlling the movement of the second vertical sliding block (45) is installed on the second vertical support platform (44).

3. The electronic production screw driver according to claim 2, characterized in that: The screw storage tube (8) is tilted and fixed on one side of the screw positioning tube (49); the screw limiting assembly (9) comprises a telescopic spring (91) provided on the lower side of the screw storage tube (8); a limiting slide rod (92) fixed on the lower end of the telescopic spring (91); the limiting slide rod (92) passes through the screw storage tube (8); the limiting slide rod (92) is slidably connected to the screw storage tube (8); a push plate (93) is installed at the lower end of the limiting slide rod (92); a sliding channel (491) is provided on the screw positioning tube (49); The sliding channel (491) is slidably connected to the push plate (93); a push ring (471) is rotatably mounted on the locking screwdriver (47); a push protrusion (472) is fixed on the push ring (471); the push protrusion (472) is slidably connected to the sliding channel (491); the push protrusion (472) is used to push the push plate (93) to slide in the sliding channel (491); the distance between the limiting sliding rod (92) and the locking screwdriver (47) is greater than the length of one screw and less than the length of two screws.

4. The screw driving machine for electronic production according to claim 3, characterized in that: The screw clamping assembly (410) comprises a plurality of hinged plates (492) fixed to the lower end of the screw positioning tube (49), a chuck (493) being hingedly connected to the hinged plate (492), a limiting spring sheet (494) being fixed on the upper side of the chuck (493), the limiting spring sheet (494) being in contact with the hinged plate (492), the limiting spring sheet (494) being used to enable the chuck (493) to generate a clamping force; an arc-shaped groove (495) is provided on a side of the chuck (493) close to the screw.

5. The screw driving machine for electronic production according to claim 4, characterized in that: The screw conveying device (1) comprises a feeding component (11), a screw conveying component (12) and a screw blowing component (13); the feeding component (11) comprises a screw feeding bin (111), a screw feeding turntable (112) is rotatably mounted on the screw feeding bin (111), an arc-shaped return plate (113) is mounted in the screw feeding bin (111), a side of the arc-shaped return plate (113) close to the screw feeding turntable (112) is in contact with the screw feeding turntable (112), a feeding motor (114) is mounted on the screw feeding bin (111), and the feeding motor (114) is 114) is used to drive the screw loading turntable (112) to rotate, and a plurality of arc-shaped screw lifting plates (115) are installed in the screw loading turntable (112), and the arc-shaped screw lifting plates (115) are used to lift the screws and drop the screws from a high place onto the screw conveying assembly (12); the arc-shaped return plate (113) has a larger radius at one end close to the screw loading turntable (112), and a smaller radius at one end of the arc-shaped return plate (113) away from the screw loading turntable (112); the radius of the arc-shaped return plate (113) at one end close to the screw loading turntable (112) is equal to the inner diameter of the screw loading turntable (112).

6. The screw driving machine for electronic production according to claim 5, characterized in that: The screw conveying assembly (12) comprises a vibration table (121), a vibration motor (122) mounted on the vibration table (121), a vibration spring (123) mounted on the vibration table (121), and a vibration support frame (127) mounted on the upper end of the vibration spring (123); a screw conveying bar (124) is fixed on the vibration support frame (127), and a T-shaped channel (125) is provided on the screw conveying bar (124); one end of the screw conveying bar (124) extends to the center position of the screw feeding turntable (112), and the end of the screw conveying bar (124) away from the screw feeding turntable (112) is connected to the screw blowing assembly (13); a pair of screw receiving plates (126) are mounted on the end of the screw conveying bar (124) close to the screw feeding turntable (112), and the screw receiving plates (126) form a V-shaped structure, and the screw receiving plates (126) are used to allow screws to be put into the T-shaped channel (125).

7. The electronic production screw driver according to claim 6, characterized in that: The screw blowing assembly (13) comprises a screw blowing platform (131), the screw blowing platform (131) is provided with a screw blowing groove (132), the bottom of the screw blowing groove (132) is flush with the bottom of the T-shaped channel (125), a screw displacement turntable (133) is installed in the screw blowing groove (132), the screw displacement turntable (133) is provided with a plurality of screw positioning grooves (134), the screw blowing platform (131) is provided with a screw drop hole (135), a three-way pipe (136) is fixed on the lower side of the screw blowing platform (131), one end of the three-way pipe (136) is aligned with the screw drop hole (135), and the three-way pipe (136) is away from the screw. One end of the wire drop hole (135) is connected to the screw delivery pipe (7), and an air pump (137) is installed on the side of the three-way pipe (136); a first electromagnetic sensor (138) is installed on one end of the three-way pipe (136) close to the screw delivery pipe (7), and a second electromagnetic sensor (81) is installed on the screw storage tube (8); the second electromagnetic sensor (81) and the first electromagnetic sensor (138) are electrically connected to the air pump (137), the vibration motor (122), the feeding motor (114) and the turntable drive (139); a turntable drive (139) is installed on the lower side of the screw blowing platform (131), and the turntable drive (139) drives the screw displacement turntable (133) to rotate step by step.

8. The screw driving machine for electronic production according to claim 6, characterized in that: The screw conveying bar (124) comprises an inclined conveying section (1241), a flip conveying section (1242) and a horizontal conveying section (1243); the screw receiving plate (126) is installed at one end of the inclined conveying section (1241) close to the screw feeding turntable (112); a plurality of laser sensors (1244) are installed on the horizontal conveying section (1243); the laser sensors (1244) are electrically connected to the vibration motor (122) and the feeding motor (114).

9. The screw driving machine for electronic production according to claim 1, characterized in that: The material handling assembly (5) comprises an extension rail (51) fixedly mounted on a gantry (3); a transverse handling slider (52) is slidably mounted on the extension rail (51); a vertical handling slider (53) is fixedly mounted on the transverse handling slider (52); a vertical handling slider (54) is slidably mounted on the vertical handling slider (53); a handling bracket (55) is fixedly mounted on the vertical handling slider (54); a handling adsorption assembly (56) is mounted on the lower end of the handling bracket (55); a transverse handling motor (33) is fixedly mounted on the gantry (3); a transverse handling screw (34) is mounted on the output end of the transverse handling motor (33); the transverse handling screw (34) is used to control the transverse handling slider (52) to move horizontally on the extension rail (51); a vertical handling motor (531) is fixedly mounted on the vertical handling slider (53); a vertical handling screw (532) is mounted on the vertical handling motor (531).

10. The electronic production screw driver according to claim 9, characterized in that: The transport and adsorption assembly (56) comprises a transport plate (561) mounted on the transport bracket (55), an adjustment plate (562) mounted at the lower end of the transport bracket (55), a negative pressure pump (563) for generating suction force mounted on the transport plate (561), a plurality of strip grooves (564) formed on the adjustment plate (562), a suction cup (565) mounted in each of the strip grooves (564), the suction cup (565) being connected to the negative pressure pump (563) via a spring tube (566), and the suction cup (565) being locked in the strip groove (564) via a pair of nuts, the nuts being respectively located on the upper and lower sides of the adjustment plate (562).

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