CN110550438A - automatic assembly system for plastic nuts - Google Patents
automatic assembly system for plastic nuts Download PDFInfo
- Publication number
- CN110550438A CN110550438A CN201910890729.3A CN201910890729A CN110550438A CN 110550438 A CN110550438 A CN 110550438A CN 201910890729 A CN201910890729 A CN 201910890729A CN 110550438 A CN110550438 A CN 110550438A
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- movable clamping
- block
- clamping block
- plastic
- feeding mechanism
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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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- 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
- B23P19/02—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 connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/88—Separating or stopping elements, e.g. fingers
- B65G47/8876—Separating or stopping elements, e.g. fingers with at least two stops acting as gates
- B65G47/8884—Stops acting asynchronously, e.g. one stop open, next one closed or the opposite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides an automatic assembly system of a plastic nut, which comprises a first feeding mechanism, a first material pushing mechanism, a second feeding mechanism and a second material pushing mechanism, wherein the discharge end of the first feeding mechanism is positioned at the left side of a working platform; the first material pushing mechanism is used for pushing the plastic shell output by the first feeding mechanism to a designated area, and the discharge end of the second feeding mechanism is positioned on the right side of the working platform; and the second pushing mechanism is positioned on the right side of the working platform and used for pushing the metal nuts output by the second feeding mechanism to a designated area. The automatic assembly system for the plastic nut has the advantages of compact structure, small occupied space, high automation degree and stable movement, can realize automatic feeding, pushing, assembling and discharging, and reduces high risk and high cost of manual operation; the precision is high, greatly reduces the production cost and improves the production efficiency.
Description
Technical Field
The invention relates to an assembly system, in particular to an automatic assembly system for a plastic nut.
Background
Fasteners are a very widely used class of mechanical parts for fastening connections. A wide variety of fasteners are found on a variety of machines, equipment, vehicles, boats, railways, bridges, buildings, structures, tools, instruments, meters, supplies, and the like. It features various varieties and specifications, different functions and usages, and very high standard, seriation and universalization degrees. One type of fastener that has a national standard is therefore also referred to as a standard fastener, or simply a standard. Fasteners are the most widely used mechanical base members. With the addition of WTO in 2001, China enters the line of the international trade republic of China. A great number of fastener products in China are exported to countries all over the world, and fastener products in all over the world are continuously introduced into the Chinese market. The fastener is one of products with large import and export quantity in China, realizes international connection, and has important practical significance and strategic significance for promoting Chinese fastener enterprises to move to the world and promoting the fastener enterprises to fully participate in international cooperation and competition. Due to the specifications, dimensions, tolerances, weight, performance, surface condition, marking methods, and the specific requirements of items for acceptance inspection, labeling, and packaging of each particular fastener product. In order to prevent rust, and make things convenient for manual tightening or unscrewing, especially in the daily life field, plastic nut is more and more common, in order to improve its joint strength, prevent smooth silk, the screw thread part adopts the metal usually, the outside then adopts the plastics material, can realize the high-speed joint under the condition that need not the instrument, and joint strength is high, it is specific, refer to fig. 1, this plastic nut is including plastic housing a and metal nut b, the shrinkage pool has been seted up at plastic housing's one end terminal surface, metal nut inlays in this shrinkage pool, and coaxial with plastic housing, in order to improve frictional force, avoid skidding under higher torsion, be equipped with anti-skidding line between metal nut outer wall namely the shrinkage pool inner wall, in the traditional art, assemble through semi-automatic mode, production cost is improved, and efficiency is lower.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to provide an automatic plastic nut assembling system which is compact in structure, good in precision and high in assembling efficiency.
【2】 Technical scheme for solving problems
The invention provides an automatic assembly system of a plastic nut, which is used for assembling the plastic nut, wherein the plastic nut comprises a plastic shell a and a metal nut b positioned in the plastic shell, and the automatic assembly system comprises:
The base plate is used as an installation carrier for installing other components, a working platform 5 is arranged in the center of the base plate, the working platform is positioned right below a press, and a fixed clamping plate 1004 is arranged on the working platform;
The first feeding mechanism is used for automatically feeding the plastic shell, and the discharge end of the first feeding mechanism is positioned on the left side of the working platform;
The first pushing mechanism 3 is located on the left side of the working platform and used for pushing the plastic shell output by the first feeding mechanism to a designated area, and comprises a first air cylinder 302 and a second air cylinder 401, wherein the output end of the first air cylinder is provided with a first movable clamping block 1003, the working platform is located on a motion path of the first movable clamping block, the output end of the second air cylinder is provided with a stop block 402, the stop block and the first movable clamping block are located in the same horizontal plane, the motion direction of the stop block is perpendicular to the motion direction of the first movable clamping block, when the first movable clamping block is located at a left limit position and the stop block is located at a rear limit position, a first accommodating cavity is formed between the first movable clamping block and the stop block, and the first accommodating cavity is located under the outlet end of the first feeding mechanism; when the first movable clamping block moves to the right limit position, a second accommodating cavity is formed between the first movable clamping block and the fixed clamping plate, and the second accommodating cavity is positioned right below a pressure head of the press;
The second feeding mechanism is used for automatically feeding the metal nuts, and the discharge end of the second feeding mechanism is positioned on the right side of the working platform;
the second pushing mechanism 7 is located on the right side of the working platform and used for pushing the metal nuts output by the second feeding mechanism to a designated area, and comprises a third cylinder 702, a second movable clamping block 1005 is arranged at the output end of the third cylinder, a third accommodating cavity 1006 for accommodating the metal nuts is arranged on the second movable clamping block, and when the second movable clamping block is located at the right limit, the third accommodating cavity is located right below a discharge hole of the second feeding mechanism; when the second movable clamping block is positioned at the left limit position, the third accommodating cavity is positioned right above the second accommodating cavity.
further, the first feeding mechanism and the second feeding mechanism have the same structure and respectively comprise a vibrating disk feeding machine and a feeding mechanism, the feeding mechanism comprises a discharge pipe 403, a first material blocking cylinder 404 and a second material blocking cylinder 405 positioned below the first material blocking cylinder, the output end of the first material blocking cylinder is provided with a first material blocking block 4041, the output end of the second material blocking cylinder is provided with a second material blocking plate 4051, the discharge pipe is vertically arranged, the upper end inlet end 4033 of the discharge pipe is communicated with the outlet end of the vibration disc feeder, an opening 4032 for the first material blocking block to be inserted to press the side wall of the plastic shell or the metal nut is formed in the side wall of the discharge pipe, the distance from the opening to the outlet end of the discharge pipe is c, the height of the plastic shell or the metal nut is d, and d is more than c and less than 2d, and the outlet end of the lower end of the discharge pipe is positioned on the motion path of the second material stopping plate.
Furthermore, a detection port 4033 is formed in the side wall of the rear end of the discharge pipe, the detection hole is located at the lower end of the opening, and an infrared sensor faces the detection port.
Furthermore, an observation hole 4031 penetrates through the side wall of the front end of the discharge pipe, the observation hole is in a strip shape, and the length direction of the observation hole is parallel to the axial direction of the discharge pipe,
Further, the front end of the working platform is provided with a discharging mechanism for sending out the assembled plastic nut, the lower end of the working platform is provided with a storage box 9, the upper end of the storage box is provided with an inlet pipe 901, and a feed inlet of the inlet pipe is located at the rear end of the working platform and faces the discharging mechanism.
further, the discharging mechanism is a discharging air cylinder or an air injection device.
further, the third accommodating cavity is strip-shaped, the length direction of the third accommodating cavity is parallel to the movement direction of the second movable clamping block, the right side of the third accommodating cavity is V-shaped, and a second opening 1007 penetrates through the left side of the third accommodating cavity; a sliding block 1001 is arranged at the upper end of the first movable clamping block in a sliding manner, the sliding direction of the sliding block is parallel to the sliding direction of the second movable clamping block, an elastic component enabling the sliding block to move rightwards is arranged on the first movable clamping block, a third movable clamping block 1002 capable of penetrating through the second opening and entering the third accommodating cavity is arranged at the right end of the sliding block, and the end part of the third movable clamping block is V-shaped; the front end of the sliding block is provided with a first inclined block, and the stop block is provided with a second inclined block 4021 which is in contact with the first inclined block and used for pushing the sliding block to slide leftwards.
Further, the width of the second opening is greater than 1/3, which is the height of the metal nut.
Further, the storage box 9 is installed at work platform's lower extreme through the drawer slide rail, a discharge gate has been seted up to the bottom surface of storage box, it has bottom plate 902 to articulate with rotating on the discharge gate, the bottom surface of storage box be equipped with one with baffle 901, the baffle with storage box bottom surface contact is used for control opening or closing of bottom plate.
【3】 Advantageous effects
The automatic assembly system for the plastic nut has the advantages of compact structure, small occupied space, high automation degree and stable movement, can realize automatic feeding, pushing, assembling and discharging, and reduces high risk and high cost of manual operation; the precision is high, greatly reduces the production cost and improves the production efficiency.
Drawings
FIG. 1 is a schematic structural view of a plastic nut;
FIG. 2 is a top view of the automatic assembly system for plastic nuts of the present invention;
FIG. 3 is a front view of the automatic assembly system for plastic nuts of the present invention;
FIG. 4 is a schematic structural diagram of a first pushing mechanism of the automatic assembling system for plastic nuts, according to the present invention;
FIG. 5 is a schematic structural diagram of a second pushing mechanism of the automatic plastic nut assembling system according to the present invention;
FIG. 6 is a schematic structural view of a feeding mechanism of the automatic plastic nut assembling system of the present invention;
FIG. 7 is a schematic view of the position of the working platform of the automatic assembly system for plastic nuts according to the present invention;
FIG. 8 is a cross-sectional view of the pusher mechanism of the automatic assembly system for plastic nuts of the present invention;
FIG. 9 is a top view of the pusher mechanism of the automatic assembly system for plastic nuts of the present invention;
FIG. 10 is a cross-sectional view showing a clamping state of the pusher mechanism of the automatic assembling system for plastic nuts according to the present invention;
FIG. 11 is a structural diagram of a clamping state of a pushing mechanism of the automatic plastic nut assembling system of the invention;
fig. 12 is a schematic structural view of a magazine of the automatic plastic nut assembling system according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 2 to 12, the present invention provides an automatic assembly system for plastic nuts, which is used for assembling plastic nuts, and the structure of the plastic nut is shown in fig. 1, and the plastic nut comprises a plastic shell a and a metal nut b positioned in the plastic shell, wherein a circular concave hole is formed in an end surface of the plastic shell, the concave hole and the plastic shell are coaxially arranged, the cylindrical metal nut is embedded in the concave hole, and anti-slip patterns are arranged between the concave hole and the metal nut.
The base plate is used as a mounting carrier for mounting other components, in the embodiment, the base plate comprises an upper base plate 101 and a lower base plate 102 which are parallel to each other, the upper base plate is mounted at the upper end of the lower base plate, the upper base plate is arranged close to the front, a working platform 5 is arranged at the center of the upper base plate, the working platform is positioned under a press, namely the working platform is positioned under a press head of the press, a fixed clamping plate 1004 is arranged on the working platform, a first groove 1009 is arranged on the left side of the fixed clamping plate, and the first groove is used for positioning the right end of the plastic shell during assembly.
the first feeding mechanism is used for automatically feeding the plastic shell, and the discharge end of the first feeding mechanism is located on the left side of the working platform. Specifically, the first feeding mechanism comprises a first vibration disc feeder 2 and a first feeding mechanism, the first vibration disc feeder is arranged at the rear end and fixed on the lower substrate, a guide chute for conveying the plastic shell is arranged at the output end of the first vibration disc feeder, the first feeding mechanism is arranged at the outlet end of the guide chute and arranged on the upper substrate, the first feeding mechanism comprises a discharge pipe 403, a first material blocking cylinder 404 and a second material blocking cylinder 405 positioned below the first material blocking cylinder, in the embodiment, the first material blocking cylinder and the second material blocking cylinder are both horizontally arranged and positioned on the same axis, the output end is arranged forwards, a first material blocking block 4041 is arranged at the output end of the first material blocking cylinder, a second material blocking plate 4051 is arranged at the output end of the second material blocking cylinder, the discharge pipe is vertically arranged, and is arranged at the front ends of the first material blocking cylinder and the second material blocking cylinder through an installation bracket 400, the upper end inlet end 4033 of the discharge pipe is communicated with the outlet end of the vibrating disk feeder, the side wall of the rear end of the discharge pipe is provided with an opening 4032 for inserting a first material blocking block to press the side wall of a plastic shell, the distance from the opening to the lower end outlet end of the discharge pipe is c, the height of the plastic shell is d, d is less than c and less than 2d, the lower end outlet end of the discharge pipe is positioned on the motion path of a second material blocking plate, when the first material blocking cylinder moves forwards, the first material blocking block at the output end can press the side wall of the plastic shell to avoid the continuous downward movement of the side wall, so that the discharge of the discharge pipe is controlled, when the second material blocking cylinder moves forwards, the second material blocking plate at the output end can block the lower end outlet of the discharge pipe to control the discharge of the plastic shell, when the second material blocking plate blocks the lower end outlet, the plastic shell is arranged in the, the first material blocking block presses a second plastic shell at the lower end in the feeding pipe, so that the plastic shell at the upper end cannot fall, then the second material blocking cylinder moves backwards, the plastic shell at the lowest end falls out of the discharging pipe under the action of gravity, then the second material blocking cylinder moves forwards, so that the second material blocking plate blocks an outlet of the discharging pipe, the first material blocking cylinder moves backwards, and the pressed plastic shell at the upper end falls until the pressed plastic shell is contacted with the second material blocking plate, so that a feeding action is completed; a detection port 4034 is formed in the side wall of the rear end of the discharge pipe, the detection hole is positioned at the lower end of the opening, an infrared sensor faces the detection port and is used for detecting whether a plastic shell exists in the discharge pipe or not, and when the plastic shell is not detected, an alarm is given to avoid idle stroke; meanwhile, an observation hole 4031 penetrates through the side wall of the front end of the discharge pipe, is in a strip shape, and the length direction of the observation hole is parallel to the axial direction of the discharge pipe, and is used for observing whether a plastic shell is arranged in the discharge pipe or not by naked eyes.
The first material pushing mechanism 3 is positioned at the left side of the working platform, is arranged on the upper base plate and is used for pushing the plastic shell output by the first material feeding mechanism to a designated area (the working platform), which comprises a first air cylinder 302 and a second air cylinder 401, wherein the first air cylinder is horizontally arranged, the output end of the first air cylinder is arranged towards the right, a first movable clamping block 1003 is arranged at the output end of the first air cylinder, the first movable clamping block and the fixed clamping plate are positioned on the same axis, a second groove 1008 corresponding to the first groove is arranged at the right end of the first movable clamping block, the working platform is positioned on the motion path of the first movable clamping block, namely, when the first movable clamping block moves to the right limit, the first movable clamping block is contacted with the first fixed clamping block, a second accommodating cavity is formed between the first groove and the second groove, the second accommodating cavity can clamp the plastic shell and enable the plastic shell to be located right below the pressure head, and in the embodiment, the first groove and the second groove are arc-shaped or V-shaped; the second cylinder is horizontally arranged, the output end of the second cylinder is arranged forwards, the output end of the second cylinder is provided with a stop block 402, the right side of the stop block is provided with a stop part 4022, when the first movable clamping plate is positioned at the leftmost end and the stop part is positioned at the rearmost end, a first accommodating cavity is formed between the second groove and the stop part and is positioned right below a discharge pipe of the first feeding mechanism; when the feeding device works, the first movable clamping plate is located at the left limit position, the baffle plate is located at the rear limit position, so that a first containing cavity is formed, the plastic shell discharged from the upper discharging pipe falls into the first containing cavity, the rear baffle plate moves forwards, the first movable clamping plate moves rightwards, the plastic shell is pushed rightwards to the working platform until the first movable clamping plate is contacted with the fixed clamping plate, and feeding of the plastic shell is completed; after the assembly is completed, the first movable clamping plate moves leftwards to the extreme limit position, and the baffle moves backwards to the extreme limit position, so that the reset is completed.
the second feeding mechanism is used for automatically feeding the metal nuts, the second feeding mechanism and the first feeding mechanism are identical in structure and are symmetrically arranged, and the discharge end of the second feeding mechanism is located on the right side of the working platform. Specifically, the first feeding mechanism comprises a second vibration disc feeder 8 and a second feeding mechanism, the second vibration disc feeder is arranged at the rear end and fixed on the lower substrate, a material guide groove for conveying the plastic shell is arranged at the output end of the second vibration disc feeder, the second feeding mechanism is arranged at the outlet end of the material guide groove and arranged on the upper substrate, the second feeding mechanism comprises a material discharge pipe 403, a first material blocking cylinder 404 and a second material blocking cylinder 405 positioned below the first material blocking cylinder, in the embodiment, the first material blocking cylinder and the second material blocking cylinder are horizontally arranged and positioned on the same axis, the output end is arranged forwards, a first material blocking block 4041 is arranged at the output end of the first material blocking cylinder, a second material blocking plate 4051 is arranged at the output end of the second material blocking cylinder, the material discharge pipe is vertically arranged, and is arranged at the front ends of the first material blocking cylinder and the second material blocking cylinder through an installation bracket 400, the upper end inlet end 4033 of the discharge pipe is communicated with the outlet end of the vibrating disk feeder, the side wall of the rear end of the discharge pipe is provided with an opening 4032 for inserting a first material blocking block to press the side wall of a metal nut, the distance from the opening to the lower end outlet end of the discharge pipe is c, the height of the metal nut is d, d is less than c and less than 2d, the lower end outlet end of the discharge pipe is positioned on the motion path of a second material blocking plate, when the first material blocking cylinder moves forwards, the first material blocking block at the output end of the first material blocking cylinder can press the side wall of the metal nut to avoid the side wall from moving downwards continuously so as to control the discharge of the discharge pipe, when the second material blocking cylinder moves forwards, the second material blocking plate at the output end of the first material blocking cylinder can block the lower end outlet of the discharge pipe to control the discharge of the metal nut, when the second material blocking plate blocks the lower, the first material blocking block presses a second metal nut at the lower end in the feeding pipe, so that the metal nut at the upper end cannot fall down, then the second material blocking cylinder moves backwards, the metal nut at the lowest end falls out of the discharging pipe under the action of gravity, then the second material blocking cylinder moves forwards, so that the second material blocking plate blocks an outlet of the discharging pipe, the first material blocking cylinder moves backwards, and the pressed metal nut at the upper end falls until the pressed metal nut contacts the second material blocking plate, so that a feeding action is completed; a detection port 4033 is formed in the side wall of the rear end of the discharge pipe, the detection hole is positioned at the lower end of the opening, an infrared sensor faces the detection port and is used for detecting whether a metal nut exists in the discharge pipe or not, and when the metal nut is not detected, an alarm is given to avoid idle stroke; meanwhile, an observation hole 4031 penetrates through the side wall of the front end of the discharge pipe, is in a strip shape, and the length direction of the observation hole is parallel to the axial direction of the discharge pipe, and is used for observing whether a metal nut is arranged in the discharge pipe or not by naked eyes.
The second pushing mechanism 7 is located on the right side of the working platform and used for pushing the metal nuts output by the second feeding mechanism to a designated area (the working platform), and comprises a third cylinder 702, the output end of the third cylinder is provided with a second movable clamping block 1005, the second movable clamping block is slidably matched on the upper surface of the fixed clamping block, a third accommodating cavity 1006 for placing the metal nuts is arranged on the second movable clamping block, and when the second movable clamping block is located at the right limit, the third accommodating cavity is located right below the discharge hole of the second feeding mechanism; when the second moves the clamp splice and is located the utmost point of left limit, the third holds the chamber and is located the second and holds the chamber directly over.
In order to improve the assembly precision and the yield, the third accommodating cavity in the embodiment is strip-shaped, the length direction of the third accommodating cavity is parallel to the movement direction of the second movable clamping block, the second movable clamping block and the first movable clamping block are coaxially arranged, the right side of the third accommodating cavity is V-shaped, and a second opening 1007 penetrates through the left side of the third accommodating cavity; meanwhile, a sliding block 1001 is arranged on the upper surface of the first movable clamping block in a sliding mode, the sliding direction of the sliding block is parallel to that of the second movable clamping block, an elastic component is arranged on the first movable clamping plate and enables the sliding block to have a rightward movement trend, a third movable clamping block 1002 which can penetrate through the second opening and enter the third accommodating cavity is arranged at the right end of the sliding block, the end part of the third movable clamping block is V-shaped, when the first movable clamping plate moves to the right limit position, the third movable clamping block on the upper surface of the first movable clamping block can clamp a metal nut located in the third accommodating cavity under the action of spring force, the two V-shaped grooves can achieve accurate centering, and the metal threads are accurately located right above the concave hole of the plastic shell; in order to further improve the precision and avoid the inclination caused by uneven stress, the width of the second opening in the embodiment is larger than 1/3 and smaller than 1/2 of the height of the metal nut; when the first movable clamping plate is positioned at the leftmost side, in order to avoid the influence of the third movable clamping plate on the normal blanking of the plastic shell, namely, in order to avoid the influence of the third movable clamping plate on the blanking of the plastic shell due to the positioning of the third movable clamping plate right above the first accommodating cavity, a first inclined block is arranged at the front end of the sliding block, a second inclined block 4021 corresponding to the first inclined block is arranged at the rear end of the stop block, when the first movable clamping plate moves to a left limit position, the stop block moves backwards, the second inclined block is contacted with the first inclined block and enables the sliding block to move leftwards under the contact of an inclined surface, the third movable clamping block moves leftwards so that the normal blanking of the plastic shell is not influenced, when the second air cylinder moves to a rear limit position, a first accommodating cavity is formed between the left side surface of the stop block on the stop block at the output end of the second air cylinder and a second groove on the first movable clamping block, and meanwhile, the second inclined block on the second air cylinder pushes the third movable clamping block to, therefore, the normal blanking of the plastic shell is not influenced.
Meanwhile, in order to enable the assembled plastic nuts to be automatically discharged, a discharging mechanism is further arranged in the embodiment, the discharging mechanism is located right in front of the workbench and used for sending out the assembled plastic nuts, the discharging mechanism is a discharging air cylinder or an air injection device, when the discharging air cylinder is adopted, the discharging air cylinder is horizontally arranged and located at the front end of the workbench, the output end of the discharging air cylinder faces backwards, and a material pushing plate is arranged on the output end and used for pushing out the assembled plastic nuts from the workbench; when the air injection device is adopted, a front stop block 501 is arranged at the front end of the workbench, an air outlet facing the plastic nut is arranged at the rear end of the front stop block, the air outlet is connected with an air source, and air injection is started and discharging is completed after assembly is completed, so that an air valve is arranged between the air source and an air flow passage of the front stop block and used for controlling air injection; a storage box 9 is arranged at the lower end of the working platform, a feeding pipe 901 is arranged at the upper end of the storage box, a feeding port of the feeding pipe is positioned at the rear end of the working platform and faces the discharging mechanism, and the discharging mechanism, the plastic nut which is assembled and the feeding port are positioned on the same straight line; the storage box 9 is arranged on the base plate through a drawer slide rail, the structure of the storage box is similar to a drawer, the storage box slides back and forth and is drawn out forwards, in order to facilitate loading, a discharge port is arranged on the bottom surface of the storage box, the discharge opening is located at the front end of the magazine, on which a base plate 902 is pivotally hinged, the articulated shaft is positioned at the rear end of the discharge opening, the bottom plate can rotate downwards, and a baffle 901 is arranged at the bottom surface of the storage box, the baffle plate is contacted with the bottom surface of the storage box and is used for controlling the opening or closing of the bottom plate, particularly, when the storage box is positioned at the rear end, the baffle plate is contacted with the bottom plate, so that the bottom plate is in a horizontal state, the storage box forms a storage cavity, when the storage box is drawn out outwards, the lower end of the bottom plate is not contacted with the baffle plate, under the action of gravity, the bottom plate rotates downwards, so that the bottom plate cannot cover the discharge opening, and the plastic nuts in the storage box are discharged from the discharge opening; in this embodiment, be equipped with an arcwall face or inclined plane in the front end upper portion of baffle, when the storage box moved to the front end, the bottom plate contacted with this arcwall face or inclined plane to make the bottom plate form certain angle, conveniently arrange the material.
The two-pole limit of each cylinder is provided with a limit switch which is a contact switch or an infrared induction switch and is used for accurate positioning;
The working principle and method of the assembly system of the present invention are explained below;
Respectively placing the plastic shell and the metal nuts into the first vibrating disk 2 and the second vibrating disk 8, and automatically discharging and feeding the plastic shell and the metal nuts in the vibrating process of the vibrating disks;
The plastic shell falls into the discharge pipe 403 through the guide chute, at this time, the first material blocking cylinder 404 moves to a rear limit position, the first material blocking block at the end part is positioned outside the discharge pipe, the second material blocking cylinder 405 moves to a front limit position, the second material blocking plate at the end part is positioned below the outlet end of the discharge pipe to block the plastic shell in the discharge pipe from falling out, the plastic shells sent out from the first feeding mechanism sequentially enter the discharge pipe, the plastic shell positioned at the lowermost end is contacted with the upper surface of the second material blocking plate so as to avoid direct discharge from the discharge pipe, the infrared sensor facing the detection port 4034 detects the plastic shells, the first material blocking cylinder moves to the front limit position, the first material blocking block at the end part presses the side wall of the second plastic shell from bottom to top in the discharge pipe to avoid falling under the action of friction force, meanwhile, the second material blocking cylinder moves to the rear limit position, the second material blocking plate at the end part moves backwards from the outlet end of the discharge pipe, the discharge hole at the lower end of the discharge pipe completely falls out, and the plastic shell at the lowermost end in the discharge pipe falls out downwards; then the second material blocking cylinder moves to a front limit position, the first material blocking cylinder moves to a rear limit position, so that the plastic shell pressed by the first material blocking block moves downwards and is contacted with the upper end of the second material blocking plate, the plastic shell is the next plastic shell to be discharged, and the plastic shell finishes the feeding step;
meanwhile, the metal nuts are synchronously fed on the second feeding mechanism, specifically, the metal nuts fall into the discharging pipe 403 through the guide chute, at this time, the first material blocking cylinder 404 moves to the rear limit position, the first material blocking block at the end part is positioned outside the discharging pipe, the second material blocking cylinder 405 moves to the front limit position, the second material blocking plate at the end part is positioned below the outlet end of the discharging pipe to block the metal nuts in the discharging pipe from falling out, the metal nuts fed from the first feeding mechanism sequentially enter the discharging pipe, and the metal nut positioned at the lowermost end part is in contact with the upper surface of the second material blocking plate, so that the metal nuts are prevented from being directly discharged from the discharging pipe, the infrared sensor facing the detection port 4034 detects the metal nuts, the first material blocking cylinder moves to the front limit position, the first material blocking block at the end part presses the side wall of the second metal nut from bottom to top in the discharging pipe, and the metal nuts are prevented from falling under the action of friction force, meanwhile, the second material blocking cylinder moves to a rear limit position, a second material blocking plate at the end part of the second material blocking cylinder moves backwards from the outlet end of the discharge pipe, a discharge hole at the lower end of the discharge pipe completely falls out, and a metal nut at the lowest end in the discharge pipe falls out downwards; then the second material blocking cylinder moves to a front limit position, the first material blocking cylinder moves to a rear limit position, so that the metal nut pressed by the first material blocking block moves downwards and is in contact with the upper end of the second material blocking plate, the metal nut is the metal nut to be discharged next, and the metal nut finishes the feeding step; the metal nut and the plastic shell are sequentially loaded, and the loading can be carried out simultaneously.
Before the plastic shell falls down, the first air cylinder 302 is located at a left limit position, and meanwhile, the second air cylinder 401 is located at a rear limit position, namely the first movable clamping block 1003 is located at a left limit position, the stop block 402 (stop block 4022) is located at a rear limit position, a first accommodating cavity is formed between a second groove at the right end of the first east clamping block and the stop block, and the first accommodating cavity is located right below a discharge pipe on the first discharge mechanism, so that the plastic shell falls out of the discharge pipe and falls into the first accommodating cavity; because the second cylinder is positioned at the rear limit position, the sliding block at the upper end of the first movable clamping block is driven to move to the left end by the second inclined block 4021 on the stop block of the second cylinder, so that the third movable clamping block at the right end of the sliding block is also positioned at the left limit position, and the third movable clamp is prevented from blocking the feeding path of the plastic shell;
Meanwhile, before the metal nut falls down, the third cylinder 7 is positioned at the right limit position, and a third accommodating cavity (hole) on the second movable clamping block at the end part of the third cylinder is positioned right below a discharge pipe of the second discharge mechanism, so that the metal nut fed out of the discharge pipe can fall into the third accommodating cavity positioned right below the discharge pipe under the action of gravity; the step can be carried out simultaneously with the step part;
when the plastic shell falls into the first accommodating cavity, the second cylinder moves to a front limit position, so that the stop block moves forwards, the stop part on the stop block moves forwards out of a movement path of the first movable clamping plate, meanwhile, the second inclined block on the stop block is in inclined contact with the first inclined block on the sliding block, when the stop block moves to a front limit, the second inclined block is separated from the first inclined block, so that the sliding block is used for moving to the rightmost end under the action of spring force, then, the first cylinder acts to drive the first movable clamping block at the end part to move rightwards, the plastic shell at the end part of the first movable clamping block also moves rightwards under the action of thrust force, when the first movable clamping block moves to a limit position, the plastic shell is in contact with the end surface of the fixed clamping plate on the working platform, a second accommodating cavity is formed between the end surfaces of the first movable clamping plate and the fixed clamping plate, and the accommodating cavity is positioned right below a pressure head of;
after the first air cylinder finishes the action, the third air cylinder moves leftwards, the metal nut in a third containing cavity on a second movable clamping block at the end part moves leftwards along with the first air cylinder, when the first air cylinder moves to a left limit, the third movable clamping block at the right end of the sliding block passes through an opening at the left side of the third containing cavity and applies a horizontal force to the metal nut inside the third containing cavity, and as the right side of the third containing cavity and the right end of the third movable clamping block are both in a V shape, the metal nut between two V-shaped grooves can be accurately centered, and at the moment, the metal nut is positioned right above the plastic shell and is coaxial with the plastic shell;
After the working procedure is finished, the pressing head of the pressing machine works, moves downwards and applies a downward pressure to the metal nut, and the metal nut is pressed into the plastic shell;
after the assembly is completed, the first air cylinder moves leftwards to the left limit position, the third air cylinder moves rightwards to the right limit position, and when the first air cylinder moves to the left limit position, the third air cylinder moves backwards to the rear limit position, so that the resetting process of each air cylinder is completed.
When the discharging cylinder is adopted, the discharging cylinder moves backwards and pushes the assembled plastic nut into a feeding pipe which is positioned right behind the discharging cylinder, and meanwhile, the discharging cylinder moves forwards to complete reset; when the air injection device is adopted, the air valve is opened, the plastic nut which is assembled is pushed to the feeding pipe positioned right behind the air valve under the action of air pressure thrust, and the plastic nut enters the storage box 9 positioned below the feeding pipe.
the assembly process of the plastic nut is completed.
The automatic assembly system for the plastic nut has the advantages of compact structure, small occupied space, high automation degree and stable movement, can realize automatic feeding, pushing, assembling and discharging, and reduces high risk and high cost of manual operation; the precision is high, greatly reduces the production cost and improves the production efficiency.
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. the utility model provides a plastics nut automatic assembly system for assemble plastics nut, plastics nut includes plastic housing a and is located metal nut b in the plastic housing, its characterized in that includes:
the base plate is used as an installation carrier for installing other components, a working platform is arranged in the center of the base plate and is positioned right below a press, and a fixed clamping plate is arranged on the working platform;
the first feeding mechanism is used for automatically feeding the plastic shell, and the discharge end of the first feeding mechanism is positioned on the left side of the working platform;
The first pushing mechanism is positioned on the left side of the working platform and used for pushing the plastic shell output by the first feeding mechanism to a designated area, the first pushing mechanism comprises a first air cylinder and a second air cylinder, the output end of the first air cylinder is provided with a first movable clamping block, the working platform is positioned on a motion path of the first movable clamping block, the output end of the second air cylinder is provided with a stop block, the stop block and the first movable clamping block are positioned in the same horizontal plane, the motion direction of the stop block is perpendicular to the motion direction of the first movable clamping block, a first accommodating cavity is formed between the first movable clamping block and the stop block when the first movable clamping block is positioned at a left limit position and the stop block is positioned at a rear limit position, and the first accommodating cavity is positioned right below an outlet end of the first feeding mechanism; when the first movable clamping block moves to the right limit position, a second accommodating cavity is formed between the first movable clamping block and the fixed clamping plate, and the second accommodating cavity is positioned right below a pressure head of the press;
the second feeding mechanism is used for automatically feeding the metal nuts, and the discharge end of the second feeding mechanism is positioned on the right side of the working platform;
the second pushing mechanism is positioned on the right side of the working platform and used for pushing the metal nuts output by the second feeding mechanism to a designated area, the second pushing mechanism comprises a third cylinder, a second movable clamping block is arranged at the output end of the third cylinder, a third containing cavity for containing the metal nuts is arranged on the second movable clamping block, and when the second movable clamping block is positioned at the right limit, the third containing cavity is positioned under the discharge hole of the second feeding mechanism; when the second movable clamping block is positioned at the left limit position, the third accommodating cavity is positioned right above the second accommodating cavity.
2. The automatic assembly system of plastic nuts as claimed in claim 1, wherein: the first feeding mechanism and the second feeding mechanism have the same structure and respectively comprise a vibrating disk feeding machine and a feeding mechanism, the feeding mechanism comprises a discharge pipe, a first material blocking cylinder and a second material blocking cylinder positioned below the first material blocking cylinder, the output end of the first material blocking cylinder is provided with a first material blocking block, the output end of the second material blocking cylinder is provided with a second material blocking plate, the discharge pipe is vertically arranged, the upper end inlet end of the discharge pipe is communicated with the outlet end of the vibration disc feeder, the side wall of the discharge pipe is provided with an opening for the first material blocking block to be inserted so as to press the side wall of the plastic shell or the metal nut, the distance from the opening to the outlet end of the discharge pipe is c, the height of the plastic shell or the metal nut is d, and d is more than c and less than 2d, and the outlet end of the lower end of the discharge pipe is positioned on the motion path of the second material stopping plate.
3. The automatic assembly system of plastic nuts as claimed in claim 2, wherein: the side wall of the rear end of the discharge pipe is provided with a detection port, the detection hole is positioned at the lower end of the opening, and an infrared sensor faces the detection port.
4. the automatic assembly system of plastic nuts as claimed in claim 2, wherein: an observation hole penetrates through the side wall of the front end of the discharge pipe, the observation hole is in a strip shape, and the length direction of the observation hole is parallel to the axis direction of the discharge pipe.
5. the automatic assembly system of plastic nuts as claimed in claim 1, wherein: the front end of the working platform is provided with a discharging mechanism used for discharging the plastic nuts which are assembled, the lower end of the working platform is provided with a storage box 9, the upper end of the storage box is provided with an inlet pipe, and the feed inlet of the inlet pipe is located at the rear end of the working platform and faces the discharging mechanism.
6. the automatic assembly system of plastic nuts as claimed in claim 1, wherein: the discharging mechanism is a discharging air cylinder or an air injection device.
7. The automatic assembly system of plastic nuts as claimed in claim 1, wherein: the third accommodating cavity is strip-shaped, the length direction of the third accommodating cavity is parallel to the movement direction of the second movable clamping block, the right side of the third accommodating cavity is V-shaped, and a second opening 1007 penetrates through the left side of the third accommodating cavity; a sliding block 1001 is arranged at the upper end of the first movable clamping block in a sliding manner, the sliding direction of the sliding block is parallel to the sliding direction of the second movable clamping block, an elastic component enabling the sliding block to move rightwards is arranged on the first movable clamping block, a third movable clamping block 1002 capable of penetrating through the second opening and entering the third accommodating cavity is arranged at the right end of the sliding block, and the end part of the third movable clamping block is V-shaped; the front end of the sliding block is provided with a first inclined block, and the stop block is provided with a second inclined block 4021 which is in contact with the first inclined block and used for pushing the sliding block to slide leftwards.
8. the automatic assembly system of plastic nuts as claimed in claim 1, wherein: the width of the second opening is greater than 1/3 the height of the metal nut.
9. The automatic assembly system of plastic nuts as claimed in claim 1, wherein: the storage box 9 is installed at the lower end of the working platform through a drawer slide rail, a discharge hole is formed in the bottom surface of the storage box, a bottom plate 902 is hinged to the discharge hole in a rotating mode, a baffle 901 is arranged on the bottom surface of the storage box, and the baffle is in contact with the bottom surface of the storage box and is used for controlling the bottom plate to be opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910890729.3A CN110550438B (en) | 2019-09-20 | 2019-09-20 | Automatic assembly system for plastic nuts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910890729.3A CN110550438B (en) | 2019-09-20 | 2019-09-20 | Automatic assembly system for plastic nuts |
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| CN110550438A true CN110550438A (en) | 2019-12-10 |
| CN110550438B CN110550438B (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910890729.3A Active CN110550438B (en) | 2019-09-20 | 2019-09-20 | Automatic assembly system for plastic nuts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114633205A (en) * | 2022-03-16 | 2022-06-17 | 日达智造科技(如皋)有限公司 | Automatic grinding production system and processing method for material slices |
| CN115592386A (en) * | 2022-12-14 | 2023-01-13 | 邯郸市兆运电力紧固件制造有限公司（Cn） | Automatic assembling device for screw and nut |
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| CN107214498A (en) * | 2017-07-28 | 2017-09-29 | 东莞中国科学院云计算产业技术创新与育成中心 | From dynamic pressure nut apparatus |
| CN207840629U (en) * | 2017-12-10 | 2018-09-11 | 无锡特恒科技有限公司 | Automatic dress plastic nut mechanism |
| CN108857329A (en) * | 2018-09-14 | 2018-11-23 | 深圳市永轮智能设备科技有限公司 | One kind is from dynamic pressure nut machine |
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| US20090188107A1 (en) * | 2008-01-24 | 2009-07-30 | Shing-Hsieh Shun | Modular assembly |
| CN107214498A (en) * | 2017-07-28 | 2017-09-29 | 东莞中国科学院云计算产业技术创新与育成中心 | From dynamic pressure nut apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115592386A (en) * | 2022-12-14 | 2023-01-13 | 邯郸市兆运电力紧固件制造有限公司（Cn） | Automatic assembling device for screw and nut |
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|---|---|
| CN110550438B (en) | 2020-05-15 |
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