CN113752003A - Automatic assembling method for bottom plate of sewing machine shell - Google Patents
Automatic assembling method for bottom plate of sewing machine shell Download PDFInfo
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- CN113752003A CN113752003A CN202111002948.7A CN202111002948A CN113752003A CN 113752003 A CN113752003 A CN 113752003A CN 202111002948 A CN202111002948 A CN 202111002948A CN 113752003 A CN113752003 A CN 113752003A
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- bottom plate
- fastener
- shell
- tightening
- sewing machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses an automatic assembling method for a bottom plate of a sewing machine shell, which comprises the following steps: after the bottom plate is arranged at the assembling position, the lifting device lifts and clamps the bottom plate; grabbing the shell from the shell loading position, and turning the shell by 90 degrees; the fastener is output to a designated position, and the four-axis robot conveys the assembled fastener to a screw displacement device or assembles the assembled fastener at the screw displacement position; the screw shifting device ascends after stepping rotation to install the assembled fastener into the installation hole of the bottom plate of the machine shell; the tightening device is lifted to tighten the bottom plate of the shell and then is reset; the screw shifting device descends and rotates step by step, the lifting device descends, and the installed bottom plate of the machine shell falls into the roller way to enter the next procedure. The invention realizes the automation of the assembly of the shell and the bottom plate and can accurately position; compared with the existing manual assembly mode, the invention greatly improves the production efficiency, avoids assembly errors and can realize large-scale production; in addition, the invention can use parts with different sizes and has good universality.
Description
Technical Field
The invention belongs to the technical field of assembly, particularly relates to assembly of a sewing machine, and particularly relates to an automatic assembly method for a bottom plate of a sewing machine shell.
Background
At present, sewing machine manufacturers in China generally adopt manual assembly of casings and bottom plates, and due to the fact that assembly precision is high, and the assembly process needs very accurate hand feeling control, the assembly can be completed only by a few people with abundant technical experience, and the yield and the quality of products are severely limited.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an automatic assembling method for a bottom plate of a sewing machine shell, which is applied to an intelligent assembling production line of a sewing machine and realizes intelligent and automatic assembling.
In order to achieve the aim, the invention provides an automatic assembling method of a bottom plate of a sewing machine shell, which is characterized by comprising the following steps:
s1, after the bottom plate is in the assembly position, the lifting device lifts and clamps the bottom plate;
s2, grabbing the casing from the casing loading position, lifting to enable the casing to turn over for 90 degrees, then shifting to a bottom plate assembly position, and descending to be attached to the bottom plate;
s3, outputting the fastener to a designated position, and conveying the fastener to a screw shifting device or assembling the fastener at the screw shifting position after the fastener is assembled by the four-axis robot;
s4, the screw shifting device ascends after stepping rotation to install the assembled fastener into the installation hole of the chassis base plate;
s5, the tightening device is reset after being lifted to tighten the bottom plate of the machine shell;
and S6, the screw shifting device descends and rotates step by step, the lifting device descends, and the installed bottom plate of the machine shell falls into a roller way to enter the next procedure.
Preferably, in S1, the side and end faces of the bottom plate are clamped in place.
Preferably, in S2, the cabinet is turned over under its own weight.
Preferably, in S4, the screw displacing device is rotated by 90 ° each time.
Preferably, the automatic assembly pre-tightening machine for the bottom plate of the sewing machine shell applied to the method comprises a frame,
a gripper for gripping the workpiece is arranged above the rack and driven by the pushing device to reciprocate between the feeding station and the assembling station;
a feeding station: the gripper grips the shell from the roller way;
at an assembly station: the rack is provided with a clamp for positioning the bottom plate; a lifting device is arranged below the clamp; the lifting device lifts the bottom plate from the roller way to the position below the clamp; the lifting device is matched with the clamp to position and clamp the bottom plate;
a screw shifting device for inputting the fastener to the assembly station is arranged on the rack; a robot assembly unit which grips the fastener on the screw shifting device is arranged beside the rack; and the rack is also provided with a tightening device for tightening the fastener to assemble the shell and the bottom plate.
Preferably, the gripper comprises a hanging part and a gripping part hung below the hanging part; the suspension part is connected with the rack in a sliding manner, and the pushing device drives the suspension part to reciprocate between a feeding station and an assembling station; the grabbing part grabs the machine shell from the roller way and positions the machine shell.
Preferably, the suspension part comprises a gripper guide rail in sliding connection with the frame, and a lifting cylinder is arranged on the gripper guide rail; the output end of the lifting cylinder is connected with the grabbing part.
Still further preferably, a gripper bracket is arranged between the gripper guide rail and the frame; the gripper support is fixedly connected with the rack, and the gripper guide rail is connected with the gripper support in a sliding manner.
Preferably, the pushing device is a rodless cylinder, a movable part of the pushing device is connected with the gripper guide rail, and a fixed part of the pushing device is connected with the gripper support.
Preferably, the grabbing part comprises a hoisting plate connected with the hanging part, two sides of the hoisting plate are respectively provided with a supporting plate, and the supporting plates are provided with spindle hole bolts which are arranged oppositely; and a gripper cylinder is arranged between the supporting plates. Therefore, the two supporting plates are driven to move away from and close to each other through the gripper cylinder, so that the machine shell is grabbed and released.
Still further preferably, the spindle hole plug is rotatably connected with the supporting plate.
Still further preferably, the hoisting plate is provided with a first guide column; the lifting cylinder is connected with the gripper guide rail through a lifting cylinder mounting plate; one end of the first guide post is connected with the hoisting plate, and the other end of the first guide post penetrates through the lifting cylinder mounting plate. Thus, the guide function is realized in the process of moving up and down.
Still further preferably, a second guide column is arranged on the hoisting plate, and a positioning hole matched with the second guide column is arranged on the supporting plate. Therefore, the machine shell model is clamped tightly through the guiding and positioning of the second guide column by pulling of the gripper cylinder.
Preferably, the lifting device comprises a lifting cylinder, and the lifting cylinder is connected to the rack through a lifting support; the lifting top frame is connected with the output end of the lifting cylinder; the top of the lifting top frame is provided with a pressing block which can be abutted against the bottom plate.
Further preferably, the pressing block is detachably connected with the lifting top frame, and the height of the pressing block on the lifting top frame is adjustable.
Preferably, the robot assembly unit comprises a robot, and a robot gripper for gripping the fastener is arranged on the robot; a fastener sorting vibration disc is arranged beside the robot; the fastener sequencing vibration disc conveys the fasteners to a designated position; and the robot grabs the fastener from the specified position to the screw displacement device through the robot gripper.
Further preferably, the robot gripper comprises a three-finger pneumatic gripper and fingers; the three-finger pneumatic claw is arranged on a plate, and the plate is connected with the robot through a coupler.
Preferably, the tightening device comprises a sliding plate slidably connected with the frame, the sliding plate is provided with a plurality of pneumatic tightening shafts, and each pneumatic tightening shaft is provided with a telescopic sleeve.
Preferably, the tightening device further comprises a tightening bracket connected with the frame, and a tightening guide rail is arranged on the tightening bracket; the sliding plate is connected with the movable part of the tightening guide rail; the screwing and pushing cylinder is fixed on the screwing support, and the output end of the screwing and pushing cylinder is connected with the sliding plate.
Preferably, the screw displacement device comprises a fastener placing plate, a ratchet fixed with the fastener placing plate, and a shaft connected with the ratchet; the pawl is matched with the ratchet wheel and connected to a rotary plate, and the rotary plate is rotatably connected with the shaft; the output end of a pawl cylinder arranged on the ratchet support is connected with the rotary plate.
Further preferably, the shaft is rotatably carried on the ratchet bracket; the ratchet bracket is connected with the output end of the ratchet cylinder; the ratchet cylinder is fixed on the frame.
Preferably, the machine frame is provided with an adjustable stop iron for positioning the hand grip at the feeding station and the assembling station.
The invention has the beneficial effects that: the invention realizes the automation of the assembly of the shell and the bottom plate and can accurately position; compared with the existing manual assembly mode, the invention greatly improves the production efficiency, avoids assembly errors and can realize large-scale production; in addition, the invention can use parts with different sizes and has good universality.
Drawings
FIG. 1 is a front view of an automatic assembly pre-tightening machine for a bed of a sewing machine housing;
FIG. 2 is a top view of an automatic pre-tightening machine for sewing machine housing bottom plate assembly;
FIG. 3 is a front view of a sewing machine housing bottom plate auto-assembling pre-tightening machine grip;
FIG. 4 is a left side view of a sewing machine housing bottom plate auto-assembling pre-tightening machine grip;
FIG. 5 is a front view of the automatic assembly of the pre-tightening machine lifting device of the bed of the sewing machine housing;
FIG. 6 is a top view of a sewing machine housing bottom plate auto-assembly pre-tightening machine robot assembly unit;
FIG. 7 is a front view of a sewing machine housing bottom plate automated assembly pre-tightening machine robot gripper;
FIG. 8 is a bottom view of the sewing machine housing bottom plate auto-assembling pre-tightener clamp;
FIG. 9 is a front view of the automatic assembly pre-tightening machine tightening device of the sewing machine housing base plate;
FIG. 10 is a front view of an automatic assembly pre-tightening machine screw shifting device of a sewing machine housing base plate;
FIG. 11 is a top view of the automatic assembly pre-tightening machine screw shifting device of the sewing machine housing base plate;
FIG. 12 is a cross-sectional view of an automatic assembly pre-tightening machine screw shifting device of a sewing machine housing base plate;
FIG. 13 is a cross-sectional view of a pre-tightening machine screw shifting device for automatic assembly of a sewing machine housing base plate;
FIG. 14 is an isometric view of a sewing machine housing bottom plate automated assembly pre-tightening machine grip;
FIG. 15 is an isometric view of a sewing machine housing bottom plate automatic assembly pre-tightening machine clamp;
FIG. 16 is an isometric view of a sewing machine housing base plate automatic assembly pre-tightening machine tightening device;
FIG. 17 is an isometric view of an automatic assembly pre-tightening machine screw shifting device for a sewing machine housing base plate;
FIG. 18 is a perspective cross-sectional view of the automatic assembly pre-tightening machine screw shifting device of the sewing machine housing base plate;
FIG. 19 is a perspective partial view of the automatic assembly pre-tightener screw shifting device of the sewing machine housing bottom plate;
FIG. 20 is a front view of the present invention;
fig. 21 is a top view of the present invention.
Detailed Description
The technical solutions of the present invention (including the preferred technical solutions) are further described in detail by way of fig. 1 to 21 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1 and 2, the automatic assembly pre-tightening machine for the bottom plate of the sewing machine shell applied to the method comprises a frame 1, wherein a gripper 3 for gripping a workpiece is arranged above the frame 1, and the gripper 3 is driven by a pushing device 3.9 to reciprocate between a feeding station I and an assembly station II;
a feeding station: the gripper 3 grips the shell from the roller way;
at an assembly station: the frame 1 is provided with a clamp 2 for positioning the bottom plate; a lifting device 5 is arranged below the clamp 2; the lifting device 5 lifts the bottom plate from the roller way to the position below the clamp 2; the lifting device 5 is matched with the clamp 2 to position and clamp the bottom plate;
a screw shifting device 6 for inputting a fastener to an assembly station is arranged on the frame 1; a robot assembly unit 7 for grabbing fasteners on the screw shifting device 6 is arranged beside the rack 1; and the frame 1 is also provided with a tightening device 4 for tightening the fastener to assemble the shell and the bottom plate.
As shown in fig. 3, 4 and 14, the gripper 3 includes a suspension part, a gripping part suspended below the suspension part; the suspension part is connected with the rack 1 in a sliding mode, and the pushing device 3.9 drives the suspension part to reciprocate between a feeding station and an assembling station; the grabbing part grabs the machine shell from the roller way and positions the machine shell.
The suspension part comprises a gripper guide rail 3.10 which is connected with the rack 1 in a sliding way, and a lifting cylinder 3.7 is arranged on the gripper guide rail 3.10; the output end of the lifting cylinder 3.7 is connected with the grabbing part. A hand grip support 3.1 is arranged between the hand grip guide rail 3.10 and the frame 1; the gripper support 3.1 is fixedly connected with the rack 1, and the gripper guide rail 3.10 is in sliding connection with the gripper support 3.1. The pushing device 3.9 is a rodless cylinder, a movable part of the pushing device is connected with the gripper guide rail 3.10, and a fixed part of the pushing device is connected with the gripper support 3.1.
The grabbing part comprises a hoisting plate 3.13 connected with the suspension part, two sides of the hoisting plate 3.13 are respectively provided with a supporting plate 3.4, and the supporting plates 3.4 are provided with spindle hole bolts 3.2 which are oppositely arranged; a gripper cylinder 3.5 is arranged between the supporting plates 3.4; the gripper cylinder 3.5 drives the two supporting plates 3.4 to move away from and close to each other, so that the machine shell is grabbed and released. The spindle hole bolt 3.2 is rotatably connected with the supporting plate 3.4. A first guide column 3.8 is arranged on the hoisting plate 3.13; the lifting cylinder 3.7 is connected with the gripper guide rail 3.10 through a lifting cylinder mounting plate 3.14; one end of the first guide column 3.8 is connected with the hoisting plate 3.13, and the other end of the first guide column penetrates through the lifting cylinder mounting plate 3.14, so that the guide effect is achieved in the up-and-down moving process. The hoisting plate 3.13 is provided with a second guide column 3.6, the supporting plate 3.4 is provided with a positioning hole matched with the second guide column 3.6, and thus, the machine shell model is clamped by the guide positioning of the second guide column 3.6 through the pulling of the gripper cylinder 3.5.
The gripper support 3.1 is fixed on the rack 1, the gripper 3 grips the shell from a material loading position of a shell conveying roller way, the gripper 3 is positioned by a main shaft hole bolt 3.2, the main shaft hole bolt 3.2 is supported and rotated by a bearing 3.3, the bearing 3.3 is arranged on two side supporting plates 3.4, the supporting plates 3.4 are pulled by a gripper cylinder 3.5, parts are clamped by a second guide column 3.6 in a positioning mode, the gripper 3 ascends and is driven by a lifting cylinder 3.7, the parts are turned over by self weight in a guiding mode of a first guide column 3.8, the gripper 3 transversely moves by a rodless cylinder 3.9, a gripper guide rail 3.10 is positioned, adjustable stop irons 3.11 are arranged on two sides, the gripper guide rail is moved to the upper space of the bottom plate and is descended to be contacted with the bottom plate, a limit block 2.6 designed on the adjusting clamp is used, and a drag chain 3.12 for a pipeline is designed in a horizontal displacement mode.
As shown in fig. 5, the lifting device 5 includes a lifting cylinder 5.3, and the lifting cylinder 5.3 is connected to the frame 1 through a lifting support 5.6; the lifting top frame 5.2 is connected with the output end of the lifting cylinder 5.3; the top of the lifting top frame 5.2 is provided with a pressing block 5.1 which can be abutted against the bottom plate. The pressing block 5.1 is detachably connected with the lifting top frame 5.2, and the height of the pressing block 5.1 on the lifting top frame 5.2 is adjustable.
The part bottom plate is conveyed to an assembly station by a roller way, the part is clamped to a positioning surface by a lifting device 5, the lifting device 5 comprises a pressing block 5.1, the height of the pressing block 5.1 is adjustable, the pressing block 5.1 is positioned on a lifting top frame 5.2, the lifting top frame 5.2 is lifted by a lifting cylinder 5.3 and positioned by a guide pillar 5.4 and a linear bearing 5.5, the lifting cylinder 5.3 and the linear bearing 5.5 are positioned on a lifting support 5.6, and the lifting support 5.6 is fixed on a rack 1.
As shown in fig. 6 and 7, the robot assembling unit 7 comprises a robot 7.4, and a robot gripper 7.5 for gripping the fastener is arranged on the robot 7.4; a fastener sorting vibration disc is arranged beside the robot 7.4; the fastener sequencing vibration disc conveys the fasteners to a designated position; the robot 7.4 grips the fastener, in this case a washer and two sizes of screws, from the above specified position onto the screw displacement device 6 by means of a robot gripper 7.5. The robot gripper 7.5 comprises a three-finger pneumatic gripper 7.51 and fingers 7.52; the three-finger pneumatic claw 7.51 is arranged on a plate 7.53, and the plate 7.53 is connected with the robot 7.4 through a coupler 7.54.
As shown in fig. 8 and 15, the fixture 2 is provided with three positioning blocks 2.1 on the top surface, the positioning blocks 2.1 are height-adjustable and equal in height, two positioning blocks 2.2 and clamping cylinders 2.3 are arranged on two side surfaces of the base plate, one positioning block 2.4 and one clamping cylinder 2.5 are arranged on two end surfaces of the base plate to completely fix the part base plate, and the fixture is provided with a gripper descending limiting block 2.6.
As shown in fig. 9 and 16, the tightening device 4 includes a sliding plate 4.3 slidably connected to the frame 1, the sliding plate 4.3 is provided with a plurality of pneumatic tightening shafts 4.1, and each of the pneumatic tightening shafts 4.1 is provided with a telescopic sleeve 4.2. The tightening device 4 further comprises a tightening support 4.6 connected with the rack 1, and a tightening guide rail 4.4 is arranged on the tightening support 4.6; the sliding plate 4.3 is connected with the movable part of the tightening guide rail 4.4; the screwing and pushing cylinder 4.5 is fixed on the screwing support 4.6, and the output end is connected with the sliding plate 4.4.
The tightening device 4 comprises four pneumatic tightening shafts 4.1, the tightening torque is more than or equal to 10Nm, a telescopic sleeve 4.2 with a 50mm stroke is mounted on each pneumatic tightening shaft 4.1, each pneumatic tightening shaft 4.1 is mounted on a sliding plate 4.3, each sliding plate 4.3 is mounted on a tightening guide rail 4.4 sliding block, each tightening guide rail 4.4 is mounted on a tightening support 4.6, each tightening support 4.6 is connected with the machine frame 1, each sliding plate 4.3 moves up and down through a tightening and pushing cylinder 4.5, and each pneumatic tightening shaft 4.1 is responsible for tightening part assembling screws.
As shown in fig. 10 to 13, 17 to 19, the screw displacing means 6 comprises a fastener placing plate 6.1, a ratchet 6.2 fixed with the fastener placing plate 6.1, a shaft 6.7 keyed with the ratchet 6.2; a pawl 6.4 matched with the ratchet wheel 6.2, wherein the pawl 6.4 is connected to a rotary plate 6.6, and the rotary plate 6.6 is rotationally connected with the shaft 6.7; the output end of a pawl cylinder 6.3 arranged on the pawl support 6.9 is connected with the rotary plate 6.6. The shaft 6.7 is rotatably carried on the ratchet bracket 6.9; the ratchet support 6.9 is connected with the output end of the ratchet cylinder 6.17; the ratchet cylinder 6.17 is fixed on the frame 1.
Preferably, the screw shifting device 6 comprises a screw placing plate 6.1, the screw placing plate 6.1 and a ratchet 6.2 are fixed, the ratchet 6.2 and a shaft 6.7 are in key connection transmission, a pawl 6.4 is positioned on an installation shaft 6.5, the installation shaft 6.5 is installed on a rotary plate 6.6, the rotary plate 6.6 is connected with a pawl cylinder 6.3 joint, the pawl cylinder 6.3 is positioned on a pawl bracket 6.9, the rotary plate 6.6 is installed on the shaft 6.7 through a bearing, the shaft 6.7 is installed on the pawl bracket 6.9 through an upper bearing and a lower bearing 6.8, the position of the rotary plate 6.6 is limited by an adjustable stop iron 6.10, the screw placing plate 6.1 can rotate 90 degrees every time the pawl cylinder 6.3 is driven once, the ball placing plate 6.1 is slowly parked by the plunger 6.11 to stop, the ball plunger 6.11 is realized by an adjustable limit stop block 6.12 arranged on the screw placing plate 6.1, the plunger 6.11 is arranged beside the proximity switch 6.20, and then the accurate positioning pin of the placing plate is judged whether the positioning pin is in place or not, the pin 6.13 is fixed with the pin cylinder 6.14 in a joint mode so as to be positioned by a linear bearing 6.15, a limiting sleeve 6.16 matched with the pin 6.13 is arranged on the screw placing plate 6.1, the pin 6.13 can vertically position the screw placing plate 6.1, the robot 7.4 can carry out screw gasket assembly when the screw placing plate 6.1 is positioned at A, B points, the assembling takt time is increased, the ratchet support 6.9 is driven by a ratchet cylinder 6.17, the guide column 6.18 can move up and down in a limiting mode, a screw is inserted into a through hole of the bottom plate, the ratchet cylinder 6.17 is positioned on the ratchet rack 6.19, and the ratchet rack 6.19 is fixed on the mounting rack 1.
As shown in fig. 20 and 21, the automatic assembly method of the sewing machine shell bottom plate designed by the invention comprises the following steps:
s1, after the bottom plate is in the assembly position, the lifting device 5 lifts and clamps the bottom plate; the lifting device 5 is matched with the clamp 2, and simultaneously positions and clamps the side surface and the end surface of the bottom plate;
s2, the gripper 3 grabs the shell from the shell loading position, the spindle hole bolt 3.2 positions the shell, after the shell is lifted, the gripper 3 moves to an assembly station after the shell is turned over by 90 degrees under the action of self gravity due to the fact that the spindle hole bolt 3.2 is rotatably connected with the supporting plate 3.4, and the gripper 3 descends to enable the shell to be attached to the bottom plate;
s3, the vibrating disk sorts and outputs the screws and the gaskets with the two specifications; the four-axis robot puts the screws into a rotary feeding position, assembles the gaskets and the screws, and completes assembly of 4 groups of screw gaskets at the rotary feeding position B; of course, the four-axis robot conveys the fastener to the screw displacement device after assembling or assembles at the screw displacement position;
s4, the screw shifting device rotates the assembled screw gasket by 90 degrees to the mounting hole by one step, and then lifts to insert the screw into the mounting hole; the screw shifting device of the invention feeds materials to the mounting hole of the bottom plate of the machine shell in a stepping rotation manner;
s5, the screw is screwed by lifting the screwing device, and a pneumatic screwing shaft or an electric screwing shaft can be adopted; the tightening device is used for resetting after tightening the bottom plate of the shell;
and S6, the screw shifting device descends and rotates step by step, the lifting device descends, and the installed bottom plate of the machine shell falls into a roller way to enter the next procedure. After the screwing is finished, the screwing device descends, the screw rotating device rotates, the lifting device descends, and the installed workpiece falls into the roller way to continue to advance; the next cycle is continued.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (10)
1. An automatic assembling method for a bottom plate of a sewing machine shell is characterized by comprising the following steps:
s1, after the bottom plate is in the assembly position, the lifting device lifts and clamps the bottom plate;
s2, grabbing the casing from the casing loading position, lifting to enable the casing to turn over for 90 degrees, then shifting to a bottom plate assembly position, and descending to be attached to the bottom plate;
s3, outputting the fastener to a designated position, and conveying the fastener to a screw shifting device or assembling the fastener at the screw shifting position after the fastener is assembled by the four-axis robot;
s4, the screw shifting device ascends after stepping rotation to install the assembled fastener into the installation hole of the chassis base plate;
s5, the tightening device is reset after being lifted to tighten the bottom plate of the machine shell;
and S6, the screw shifting device descends and rotates step by step, the lifting device descends, and the installed bottom plate of the machine shell falls into a roller way to enter the next procedure.
2. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: and S1, positioning and clamping the side surface and the end surface of the bottom plate at the same time.
3. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: in S2, the cabinet is turned over under its own weight.
4. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: in S4, the screw displacing device is rotated 90 ° each time.
5. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: the gripper grabs the shell from the shell loading position, and the gripper is driven by the pushing device to reciprocate between the loading station and the assembling station; the hand grip is arranged on the frame;
a feeding station: the gripper grips the shell from the roller way;
at an assembly station: the rack is provided with a clamp for positioning the bottom plate; a lifting device is arranged below the clamp; the lifting device lifts the bottom plate from the roller way to the position below the clamp; the lifting device is matched with the clamp to position and clamp the bottom plate;
a screw shifting device for inputting the fastener to the assembly station is arranged on the rack; a robot assembly unit which grips the fastener on the screw shifting device is arranged beside the rack; and the rack is also provided with a tightening device for tightening the fastener to assemble the shell and the bottom plate.
6. The automatic assembling method of sewing machine housing bottom plate according to claim 5, characterized in that: the gripper comprises a suspension part and a gripping part hung below the suspension part; the suspension part is connected with the rack in a sliding manner, and the pushing device drives the suspension part to reciprocate between a feeding station and an assembling station; the grabbing part grabs the shell from the roller way and positions the shell; the grabbing part comprises a hoisting plate connected with the suspension part, two sides of the hoisting plate are respectively provided with a supporting plate, and the supporting plates are provided with spindle hole bolts which are oppositely arranged; a gripper cylinder is arranged between the supporting plates; the main shaft hole bolt is rotatably connected with the supporting plate.
7. The automatic assembling method of sewing machine housing bottom plate according to claim 5, characterized in that: the lifting device comprises a lifting cylinder, and the lifting cylinder is connected to the rack through a lifting support; the lifting top frame is connected with the output end of the lifting cylinder; the top of the lifting top frame is provided with a pressing block which can be abutted against the bottom plate.
8. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: the fastener is output to a designated position through the robot assembly unit; the robot assembling unit comprises a robot, and a robot gripper for gripping the fastener is arranged on the robot; a fastener sorting vibration disc is arranged beside the robot; the fastener sequencing vibration disc conveys the fasteners to a designated position; and the robot grabs the fastener from the specified position to the screw displacement device through the robot gripper.
9. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: the tightening device comprises a sliding plate which is in sliding connection with the rack, a plurality of pneumatic tightening shafts are arranged on the sliding plate, and each pneumatic tightening shaft is provided with a telescopic sleeve; the tightening device also comprises a tightening bracket connected with the rack, and a tightening guide rail is arranged on the tightening bracket; the sliding plate is connected with the movable part of the tightening guide rail; the screwing and pushing cylinder is fixed on the screwing support, and the output end of the screwing and pushing cylinder is connected with the sliding plate.
10. The automatic assembling method of the sewing machine frame bottom plate according to claim 1, characterized in that: the screw shifting device comprises a fastener placing plate, a ratchet wheel fixed with the fastener placing plate and a shaft connected with the ratchet wheel key; the pawl is matched with the ratchet wheel and connected to a rotary plate, and the rotary plate is rotatably connected with the shaft; the output end of a pawl cylinder arranged on the ratchet support is connected with the rotating plate; the shaft is rotatably carried on the ratchet bracket; the ratchet bracket is connected with the output end of the ratchet cylinder; the ratchet cylinder is fixed on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002948.7A CN113752003A (en) | 2021-08-30 | 2021-08-30 | Automatic assembling method for bottom plate of sewing machine shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002948.7A CN113752003A (en) | 2021-08-30 | 2021-08-30 | Automatic assembling method for bottom plate of sewing machine shell |
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| CN113752003A true CN113752003A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111002948.7A Pending CN113752003A (en) | 2021-08-30 | 2021-08-30 | Automatic assembling method for bottom plate of sewing machine shell |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266146A (en) * | 1994-03-24 | 1995-10-17 | Juki Corp | Automatic assembling method for part and device therefor |
| CN104015047A (en) * | 2014-06-06 | 2014-09-03 | 苏州工业园区新凯精密五金有限公司 | Automatic assembling machine for screws and gaskets |
| CN110253287A (en) * | 2019-07-11 | 2019-09-20 | 李树平 | A kind of guitar humidifier automatic assembling mechanism and its assembly technology |
| CN209664763U (en) * | 2019-04-18 | 2019-11-22 | 黄少君 | A kind of assembling equipment for shell of gas meter |
| CN213133797U (en) * | 2020-08-20 | 2021-05-07 | 鞍山星启数控科技有限公司 | Controller rectification block mounting system |
| CN113186667A (en) * | 2021-04-30 | 2021-07-30 | 东风设备制造有限公司 | Sewing machine shell bottom plate assembling method |
-
2021
- 2021-08-30 CN CN202111002948.7A patent/CN113752003A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266146A (en) * | 1994-03-24 | 1995-10-17 | Juki Corp | Automatic assembling method for part and device therefor |
| CN104015047A (en) * | 2014-06-06 | 2014-09-03 | 苏州工业园区新凯精密五金有限公司 | Automatic assembling machine for screws and gaskets |
| CN209664763U (en) * | 2019-04-18 | 2019-11-22 | 黄少君 | A kind of assembling equipment for shell of gas meter |
| CN110253287A (en) * | 2019-07-11 | 2019-09-20 | 李树平 | A kind of guitar humidifier automatic assembling mechanism and its assembly technology |
| CN213133797U (en) * | 2020-08-20 | 2021-05-07 | 鞍山星启数控科技有限公司 | Controller rectification block mounting system |
| CN113186667A (en) * | 2021-04-30 | 2021-07-30 | 东风设备制造有限公司 | Sewing machine shell bottom plate assembling method |
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