CN112496744A

CN112496744A - A multistation workstation for safety helmet equipment

Info

Publication number: CN112496744A
Application number: CN202011471399.3A
Authority: CN
Inventors: 储金武
Original assignee: Anhui Runhong Plastic Co ltd
Current assignee: Anhui Runhong Plastic Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-03-16
Anticipated expiration: 2040-12-15
Also published as: CN112496744B

Abstract

The invention belongs to the technical field of intelligent manufacturing of safety protection tools, and particularly relates to a multi-station workbench for assembling safety helmets, which comprises a transfer mechanism, wherein a positioning mechanism for fixing a tightener is arranged on the transfer mechanism, the positioning mechanism comprises a positioning table, and an arched positioning groove matched with the shape of an inner half shell is arranged on the positioning table; two ends of the positioning table are respectively provided with a guide block, and the bottom of each guide block is provided with an arc-shaped guide surface; and a feeding station and an unloading station are arranged on a transfer path of the transfer mechanism, the feeding station is provided with a feeding mechanism for installing the inner half shell on the positioning table, and the unloading station is used for moving the inner half shell out of the positioning table. The inner half shell of the tightener is fixed by the fixed outer table, so that the tightener can be circulated among a plurality of stations, and the procedures of side hoop installation, gear installation, outer half shell installation and the like are completed in sequence, so that the automatic assembly of the safety helmet assembly is realized, the production efficiency is improved, and the production cost is reduced.

Description

A multistation workstation for safety helmet equipment

Technical Field

The invention belongs to the technical field of intelligent manufacturing of safety protection appliances, and particularly relates to a multi-station workbench for assembling safety helmets.

Background

The safety helmet is also called a safety helmet, is indispensable safety protection equipment in the fields of industrial production, building construction and the like, the tightness of the conventional safety helmet is generally manually adjusted, the conventional safety helmet is inconvenient to wear on the head for adjustment due to the fact that the adjusting device is positioned at the rear side of the safety helmet, the conventional safety helmet is adjusted to have satisfactory tightness after being taken off for adjustment, the adjusting process is relatively complicated, in addition, the conventional safety helmet is mostly assembled manually during production, the production efficiency is low, the production efficiency is seriously influenced, and the requirement of mass rapid production is difficult to meet.

Disclosure of Invention

The invention aims to provide a multi-station workbench for assembling safety helmets, which can drive semi-finished product components of a safety helmet tightener to flow in a plurality of stations, so as to realize automatic assembly of the safety helmet components.

The technical scheme adopted by the invention is as follows:

a multi-station workbench for assembling safety helmets comprises a transfer mechanism, wherein a positioning mechanism for fixing a tightener is arranged on the transfer mechanism, the tightener comprises an inner half shell, the inner half shell comprises an arc-shaped bottom wall and two side walls, two arc-shaped edges of the arc-shaped bottom wall are convexly arranged towards one side of an outer arc surface, arc-shaped grooves are formed in the inner sides of the two side walls, a fixed shaft is arranged in the center of the outer arc surface of the arc-shaped bottom wall, the positioning mechanism comprises a positioning table, and an arc-shaped positioning groove matched with the shape of the inner half shell is formed in the positioning table; the two ends of the positioning table are respectively provided with a guide block, the bottom of each guide block is provided with an arc-shaped guide surface, and the upper end of each arc-shaped guide surface is connected with the top wall of the arc-shaped groove of the side wall of the inner half shell in the arc-shaped positioning groove; and a feeding station and an unloading station are arranged on a transfer path of the transfer mechanism, the feeding station is provided with a feeding mechanism for installing the inner half shell on the positioning table, and the unloading station is used for moving the inner half shell out of the positioning table.

The feed mechanism includes arch vibration tank and feeding manipulator, half shell arranges in proper order in the arch vibration tank in, feeding manipulator is used for snatching half shell in the arch vibration tank and shifts to the location bench.

The two guide blocks are respectively opened and closed relative to the two ends of the positioning table along the horizontal direction; the positioning table further comprises a fourth elastic unit, and the fourth elastic unit is assembled to enable the elastic force of the fourth elastic unit to drive the guide block to be tightly abutted to the end face of the positioning table.

Still be equipped with the spacing convex part that sets up to the top protruding the applying of arch constant head tank both ends on the guide block, the base at half inner shell both ends is equipped with the chamfer, the upper end of spacing convex part is equipped with the slope guide face with chamfer matched with, and the in-process chamfer that half inner shell top-down inserted the arch constant head tank can pass two guide blocks to the location platform both ends outside through the slope guide face, and two guide blocks support tightly again with the location platform both ends under fourth elastic element's effect when half inner shell inserts the arch constant head tank completely, make spacing convex part press the top at half inner shell both ends.

The kicking block that the arch positioning groove bottom set up, the side push rod that one side set up wherein of arch positioning groove, the kicking block sets up along vertical direction activity, the side push rod sets up along the horizontal direction activity.

Be equipped with fifth elastic unit between kicking block and the location platform, fifth elastic unit is assembled and can orders about kicking block downstream for its elasticity, still including the pole that sideslips that is used for driving the kicking block lifting, be equipped with the slide wedge driving face on the slide bar of side, the kicking block bottom is equipped with the slide wedge face, slide wedge driving face and slide wedge face butt.

The guide block is provided with a first wedge block; the side sliding rod and the side push rod are fixed on a sliding block, a second inclined wedge block is arranged on the sliding block, and a sixth elastic unit used for driving the sliding block to be far away from the positioning table is arranged between the sliding block and the positioning table; the discharging mechanism comprises a discharging drive plate, a first wedge-shaped drive block in interference fit with a first wedge block and a second wedge-shaped drive block in interference fit with a second wedge block are arranged on the discharging drive plate, when the discharging drive plate is downward, the first wedge-shaped drive block can drive the guide block to be separated from the positioning table, and the second wedge-shaped drive block can drive the ejector block to jack the inner half shell and drive the side push rod to push the inner half shell away from one side of the positioning table.

The transfer mechanism is a rotary disk which is rotatably arranged along a vertical axis.

Four groups of positioning mechanisms are arranged at equal intervals along the circumferential direction of the rotary disc.

An intelligent safety helmet assembling system comprises the multi-station workbench for assembling the safety helmet; a side hoop assembling station and a tightener assembling station are further arranged on a transfer path of the transfer mechanism; the feeding station, the side hoop assembling station, the tightener assembling station and the unloading station are sequentially arranged along a transfer path of the transfer mechanism; the side hoop assembling station is provided with a side hoop assembling device and a gear assembling mechanism, and the tightener assembling station is provided with a tightener assembling device.

The invention has the technical effects that: the inner half shell of the tightener is fixed by the fixed outer table, so that the tightener can be circulated among a plurality of stations, and the procedures of side hoop installation, gear installation, outer half shell installation and the like are completed in sequence, so that the automatic assembly of the safety helmet assembly is realized, the production efficiency is improved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent safety helmet provided by an embodiment of the invention;

FIG. 2 is an exploded view of a retractor according to an embodiment of the present invention;

FIG. 3 is a perspective view of a smart headgear assembly system provided by an embodiment of the present invention;

FIG. 4 is a top view of an intelligent headgear assembly system provided by an embodiment of the present invention;

FIG. 5 is a sectional view A-A of FIG. 4;

FIG. 6 is a cross-sectional view B-B of FIG. 4;

FIG. 7 is a perspective view of a positioning mechanism provided by an embodiment of the present invention;

FIG. 8 is a perspective view of a positioning mechanism discharge station provided by an embodiment of the present invention;

FIG. 9 is a top view of a positioning mechanism discharge station provided by an embodiment of the present invention;

FIG. 10 is a cross-sectional view E-E of FIG. 9;

FIG. 11 is a perspective view of a shaping mechanism provided by an embodiment of the present invention;

FIG. 12 is a perspective view of a threading mechanism provided by an embodiment of the present invention;

FIG. 13 is a perspective view of a tensioner assembly provided by an embodiment of the present invention;

FIG. 14 is a top view of a tensioner assembly provided by an embodiment of the present invention;

FIG. 15 is a cross-sectional view C-C of FIG. 14;

fig. 16 is a cross-sectional view taken along line D-D of fig. 14.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

Example 1

As shown in fig. 3, an intelligent safety helmet assembling system includes a transferring mechanism 10, a positioning mechanism 70 is disposed on the transferring mechanism 10, and the positioning mechanism 70 is used for fixing a tightener of a safety helmet; as shown in fig. 2, the tightener includes an inner half shell 1 and an outer half shell 2, the inner half shell 1 includes an arc bottom wall 101 and two side walls 102 protruding towards one side of the arc bottom wall 101, arc grooves 103 are arranged on the inner sides of the two side walls 102, a fixed shaft 104 is arranged in the center of the arc side of the arc bottom wall 101, crosspieces 105 connecting the two side walls 102 are arranged at two ends of the two side walls 102, and buckles are arranged on the outer sides of the centers of the two side walls 102; the outer half shell 2 comprises an arc plate 201 clamped with the inner half shell 1, two ends of the arc plate 201 are inserted between the cross bar 105 and the arc bottom wall 101, a lug 203 which is convexly extended towards the outer sides of the two side walls 102 of the inner half shell 1 is arranged in the middle of the arc plate 201, a clamping groove matched with a buckle is arranged on the lug 203, a driving mechanism 203 is arranged in the center of the arc plate 201, a gear 3 is arranged between the outer half shell 2 and the inner half shell 1, the gear 3 is sleeved on the fixed shaft 104, a square shaft 301 is arranged on the gear 3, the driving mechanism 203 comprises a rotating shaft, and a square hole 204 matched with the square shaft 301 is arranged in the; as shown in fig. 4, a feeding station, a side hoop assembling station, a tightener assembling station and an unloading station are sequentially arranged on a transfer path of the transfer mechanism 10, the feeding station is provided with a feeding mechanism, and the feeding station is provided with a feeding mechanism 20 for mounting the inner half shell 1 on the positioning mechanism 70; the side hoop assembling station is provided with a side hoop assembling device 30 and a gear assembling device 40, and the side hoop assembling device 30 is used for inserting the pull belts 5 at two ends of the side hoop 4 between the arc-shaped grooves 103 of the two side walls 102 of the inner half shell 1; the side hoop 4 comprises a strip-shaped body and pull belts 5 arranged at two ends of the strip-shaped body, the pull belts 5 and the strip-shaped body are arranged at an included angle, waist-shaped holes are formed in the pull belts 5, one straight edge of each waist-shaped hole is provided with a rack, one end of each waist-shaped hole is provided with a notch part penetrating through the end part of each pull belt 5, and the notch parts are used for avoiding the fixed shaft 104 when inserting; the gear 3 assembling mechanism is used for sleeving the gear 3 on the fixing shaft 104 of the inner half shell 1 and meshing with the rack teeth on the pull belt 5; the tightener assembling station is provided with a tightener assembling device 50, and the tightener assembling device 50 is used for pressing the outer half shell 2 on the inner half shell 1; the discharge station is provided with a discharge mechanism for removing the assembled retractor and side band 4 from the positioning mechanism 70. According to the invention, the inner half shell 1 of the tightener is fixed on the positioning mechanism 70, the positioning mechanism 70 is driven to rotate among different stations by the transfer mechanism 10, a series of processes such as inserting of the side hoop 4, installation of the gear 3, press fitting of the outer half shell 2 and the like are sequentially realized, automatic assembly of the side hoop 4 component of the safety helmet is realized, the production efficiency is improved, and the production cost is reduced.

Preferably, as shown in fig. 3, the feeding mechanism 20 includes an arched vibration groove 21 and a feeding manipulator 22, the inner half shells 1 are sequentially arranged in the arched vibration groove 21, and the feeding manipulator 22 is used for grabbing the inner half shells 1 in the arched vibration groove 21 and transferring to the positioning mechanism 70. Feeding manipulator 22 installs on the lift cylinder, and the lift cylinder is installed on horizontal electric jar, has realized feeding manipulator 22's lift and translation action, and feeding manipulator 22 can select for use electronic or pneumatic clamp.

Preferably, as shown in fig. 3, 5, 11 and 12, the side hoop assembling device 30 includes a shaping mechanism and a threading mechanism, the shaping mechanism is configured to bend the straight side hoop 4 into a U shape and make the pull belt 5 at both ends of the side hoop 4 point upward in the vertical direction; the threading mechanism is positioned above the shaping mechanism and is assembled to thread the two pulling belts 5 of the shaped side hoop 4 into the tightener; the shaping mechanism comprises a conveying unit 31, a bending unit 32 and a transferring and overturning unit 33; the conveying unit 31 is used for conveying the side hoop 4 in a straight state to the bending unit 32, the bending unit 32 is located on a conveying path of the conveying unit 31, the bending unit 32 is used for bending the side hoop 4 in the straight state into a U shape, the transferring and overturning unit 33 is located beside the bending unit 32, and the transferring and overturning unit 33 is used for moving the bent side hoop 4 out of the bending unit 32 and overturning the side hoop 4 into a state that two pull belts 5 are vertically upward.

Specifically, the conveying unit 31 includes two horizontal conveying belts arranged in parallel at intervals, two ends of the side hoop 4 in a straight state are respectively lapped on the two horizontal conveying belts, and the middle part of the side hoop 4 is suspended between the two horizontal conveying belts; the bending unit 32 is disposed between the two horizontal conveyor belts.

Specifically, as shown in fig. 11, the bending unit 32 includes a bending die 321 having a U-shaped outer wall; the arc section of the U-shaped outer wall is positioned at the lower end of the bending die 321, a clamping block 322 matched with the arc section of the U-shaped outer wall is arranged below the bending die 321, the clamping block 322 is movably arranged along the vertical direction, and an arc-shaped groove 103 matched with the arc section of the U-shaped outer wall is arranged on the top surface of the clamping block 322; two shaping rollers 323 are arranged on two sides of the clamping block 322, and the two shaping rollers 323 are movably arranged along the vertical direction; further comprising a first elastic unit 326, the first elastic unit 326 being assembled such that its elastic force can urge the two shaping rollers 323 toward each other; the two shaping rollers 323 are mutually symmetrical and form rolling fit with the U-shaped outer wall of the bending die 321; the clamping block 322 and the shaping roller 323 are both mounted on a lifting support 324, the lifting support 324 is arranged on a rack in a reciprocating motion along the vertical direction, the rack is provided with a first driving element for driving the lifting support 324 to lift, and the first driving element can be an air cylinder or an electric cylinder; the clamping block 322 is movably connected with the lifting bracket 324 along the vertical direction, a second elastic unit 327 is arranged between the clamping block 322 and the lifting bracket 324, the second elastic unit 327 is assembled to enable the elastic force of the second elastic unit 327 to drive the clamping block 322 to move upwards relative to the lifting bracket 324, and the second elastic unit 327 can be a compressed spring or a tension spring; the shaping roller 323 is rotatably arranged on a swing arm 325, and the swing arm 325 is pivoted with the lifting bracket 324; the first elastic unit 326 is a tension spring disposed between the two swing arms 325. During shaping, the conveyor belt conveys the side hoop 4 to be aligned with the bending die 321, then the lifting bracket 324 ascends to enable the clamping block 322 to clamp the middle part of the side hoop 4 between the bending die 321 and the clamping block 322, the lifting bracket 324 continues to ascend, the clamping block 322 stops ascending due to the blocking of the bending die 321, the shaping roller 323 is pressed with the bottom of the bending die 321, and the two shaping rollers 323 are mutually unfolded along the side wall 102 of the bending die 321 along with the ascending of the lifting bracket 324 and tightly press the side hoop 4 on the side wall 102 of the bending die 321 to enable the side hoop 4 to be bent into a U shape.

Specifically, as shown in fig. 11 and 12, the transferring and turning unit 33 includes two clamps 331, the two clamps 331 are respectively disposed corresponding to the two pull tapes 5 of the bent side hoop 4, the two clamps 331 are mounted on a turning plate 332, the turning plate 332 is rotatably disposed on a first push block 333 movably disposed along the horizontal direction, the turning plate 332 is assembled to have two stations of an inclined state and a horizontal state, and when the two clamps 331 clamp the two pull tapes 5 of the side hoop 4 on the bending unit in the inclined state of the turning plate 332, the turning plate 332 is turned into the horizontal state, so that the two pull tapes 5 can be just turned into a vertical posture; a third elastic unit 334 is arranged between the turning plate 332 and the first pushing block 333, the third elastic unit 334 is assembled such that the elastic force of the third elastic unit can drive the turning plate 332 in the horizontal state to turn towards the inclined state, a baffle 335 blocked with the turning plate 332 is arranged on the moving path of the first pushing block 333, and when the first pushing block 333 moves towards the direction far away from the bending unit 32, the baffle 335 can extrude the turning plate 332 and extrude the turning plate 332 to the horizontal state; the threading mechanism includes a second push block 336 that reciprocates in the vertical direction; the transfer and turnover unit 33 is mounted on a second push block 336, and the second push block 336 is driven by a vertically arranged cylinder.

Preferably, as shown in fig. 3, the gear assembling device 40 includes a first vibration conveying trough 42, a material distributing turntable 41 and a transferring manipulator 44, the material distributing turntable 41 is rotatably disposed along a vertical axis, a U-shaped notch is disposed at an edge of the material distributing turntable 41, a groove matched with the profile of the gear 3 side of the tightener is disposed on a side wall 102 of the U-shaped notch, a surrounding plate 43 is fixedly disposed on the outer side of the circumferential surface of the material distributing turntable 41, a feeding hole and a discharging hole are disposed on the surrounding plate 43, the feeding hole is connected with the first vibration conveying trough 42, and the transferring manipulator 44 is used for transferring the gear 3 from the discharging hole and mounting the gear on a fixing shaft 104 of the inner half shell 1 of the side hoop 4 assembling. The transfer manipulator 44 is arranged on a lifting cylinder, the cylinder is arranged on a horizontal electric cylinder, so that the transfer manipulator 44 has two degrees of freedom of lifting and translation, the transfer manipulator 44 can select an electric clamp or a pneumatic clamp, and the corners of the square shafts 301 on the gears 3 are consistent when the gears 3 feed in the first vibration conveying groove 42 and are limited by the groove wall of the first vibration conveying groove 42.

Specifically, as shown in fig. 13, 14, 15 and 16, the tightener assembly device 50 comprises a feeding mechanism 51 and a pressing manipulator 52, wherein the feeding mechanism 51 is used for storing the outer half-shell 2, and the pressing manipulator 52 is used for transferring and pressing the outer half-shell 2 on the feeding mechanism 51 onto the inner half-shell 1 of the tightener pressing station; the feeding mechanism 51 comprises an arched conveying groove, a direction adjusting mechanism for adjusting the angle of the rotating shaft square hole 204 is arranged on the arched conveying groove, and the direction adjusting mechanism is used for adjusting the angle of the rotating shaft square hole 204 of the outer half shell 2 to a preset angle; as shown in fig. 15, the direction-adjusting mechanism includes a square rotating shaft 53 vertically disposed, the square rotating shaft 53 is connected with a main shaft 54 of a direction-adjusting motor 55 in a synchronous rotating manner, the square rotating shaft 53 forms a sliding fit with the main shaft 54 of the direction-adjusting motor 55 along an axial direction, an eighth elastic unit 56 is disposed between the square rotating shaft 53 and the main shaft 54 of the direction-adjusting motor 55, the eighth elastic unit 56 is assembled such that an elastic force thereof can drive the square rotating shaft 53 to be inserted into a square hole 204 of the rotating shaft of the outer half shell 2, the main shaft 54 of the direction-adjusting motor 55 is telescopically disposed along the axial direction, the direction-adjusting motor 55 is a device similar to a starting motor of an automobile engine, that is, a motor and an electromagnetic valve are combined into a whole, so that the main shaft 54 of the; the direction-adjusting mechanism also comprises a material pressing frame 511 which is arranged above the arched conveying groove and is used for preventing the outer half shell 2 from lifting. Since the angles of the square holes 204 on the rotating shaft of the half-finished outer shell 2 are inconsistent after the half-finished outer shell is machined, the square holes 204 cannot be smoothly sleeved on the square shaft 301 without adjusting the angles of the square holes 204. The direction adjusting mechanism of the invention has the direction adjusting working principle that: when the outer half shell 2 moves to the upper side of the square shaft, the main shaft 54 of the direction adjusting motor 55 is popped up, at this time, if the square shaft is not aligned with the square hole 204, the eighth elastic unit 56 is compressed, and along with the rotation of the main shaft 54 of the direction adjusting motor 55, the square rotating shaft 53 is gradually aligned with the square hole 204 and inserted into the square hole 204 under the action of the eighth elastic unit 56, and the direction of the rotating angle of the square holes 204 of all the outer half shells 2 can be ensured to be consistent each time the direction adjusting motor 55 stops at a fixed rotating angle.

Specifically, as shown in fig. 16, the press-fitting manipulator 52 includes a sliding base 521 arranged to slide in a horizontal direction, and a clamping jaw 522 arranged on the sliding base 521 to reciprocate in a vertical direction, where the clamping jaw 522 is used to clamp the driving mechanism 203 at the center of the outer half-shell 2, the sliding base 521 is further provided with a blocking frame 523, the blocking frame 523 blocks and connects with two ends of the arc plate 201 of the outer half-shell 2, and when the clamping jaw 522 grabs the outer half-shell 2 and is lifted upwards, the blocking frame 523 can press two ends of the arc plate 201 to bend and deform two ends of the arc plate 201 downwards; the blocking frame 523 is movably connected with the sliding seat 521 along the vertical direction, a seventh elastic unit 524 is arranged between the blocking frame 523 and the sliding seat 521, the seventh elastic unit 524 is assembled to enable the elastic force of the seventh elastic unit to drive the blocking frame 523 to move downwards, and a limiting part for limiting the downward limit position of the blocking frame 523 is arranged between the blocking frame 523 and the sliding seat 521; the blocking frame 523 is blocked with the top surface of the clamping jaw 522, the clamping jaw 522 has a first stroke and a second stroke from bottom to top, when the clamping jaw 522 moves in the first stroke, the clamping jaw 522 is not contacted with the blocking frame 523, and when the clamping jaw 522 moves in the second stroke, the clamping jaw 522 is abutted with the limiting frame. The pressure equipment manipulator 52 snatchs outer half shell 2 and can make arc plate 201 downwarping after passing, makes the distance between arc plate 201 both ends be less than the distance between two crosspiece poles 105 on the inner half shell 1, thereby ensure that arc plate 201 both ends can insert two crosspiece poles 105 below from between two crosspiece poles 105, cross crosspiece pole 105 back downwards at arc plate 201 both ends, only need drive clamping jaw 522 down until keep off the frame 523 and no longer produce the oppression arc plate 201 and just can the time arc plate 201 reset, thereby alternate into crosspiece pole 105 below.

Preferably, as shown in fig. 6 to 10, the positioning mechanism 70 includes a positioning table 71, and an arched positioning slot matched with the shape of the inner half shell 1 is formed on the positioning table 71; the two ends of the positioning table 71 are respectively provided with a guide block 72, the bottom of the guide block 72 is provided with an arc-shaped guide surface, the upper end of the arc-shaped guide surface is connected with the top wall of an arc-shaped groove 103 of the side wall 102 of the inner half shell 1 in the arc-shaped positioning groove, and when the positioning mechanism 70 is positioned at the assembling station of the side hoop 4, the lower end of the arc-shaped guide surface is opposite to the upper end of the pull belt 5 in the vertical posture on the transfer turnover mechanism; when the second push block 336 drives the side hoop 4 to move upwards, the pull belt 5 can penetrate into the arc-shaped grooves 103 of the two side walls 102 of the inner half shell 1 along the arc-shaped guide surfaces; the two guide blocks 72 are respectively opened and closed along the horizontal direction relative to the two ends of the positioning table 71; the positioning device further comprises a fourth elastic unit 73, wherein the fourth elastic unit 73 is assembled to enable the elastic force of the fourth elastic unit 73 to drive the guide block 72 to be abutted against the end face of the positioning table 71; the guiding block 72 is further provided with limiting convex parts 722 protruding and extending to the upper parts of the two ends of the arched positioning groove, the bottom edges of the two ends of the inner half shell 1 are provided with chamfers, the upper ends of the limiting convex parts 722 are provided with inclined guiding surfaces matched with the chamfers, the chamfers can push the two guiding blocks 72 to the outer sides of the two ends of the positioning table 71 through the inclined guiding surfaces in the process that the inner half shell 1 is inserted into the arched positioning groove from top to bottom, and the two guiding blocks 72 are tightly pressed against the two ends of the positioning table 71 again under the action of the fourth elastic unit 73 when the inner half shell 1 is completely inserted into the arched positioning groove, so that the limiting convex parts are pressed above the two.

Further, a top block 74 is arranged at the bottom of the arched positioning groove, a side push rod 76 is arranged on one side of the arched positioning groove, the top block 74 is movably arranged along the vertical direction, and the side push rod 76 is movably arranged along the horizontal direction; a fifth elastic unit 75 is arranged between the top block 74 and the positioning table 71, the fifth elastic unit 75 is assembled to enable the elastic force of the fifth elastic unit to drive the top block 74 to move downwards, the fifth elastic unit further comprises a side sliding rod 77 used for driving the top block 74 to lift, a wedge driving surface is arranged on the side sliding rod 77, a wedge surface is arranged at the bottom of the top block 74, and the wedge driving surface is abutted to the wedge surface; the guide block 72 is provided with a first wedge 721; the side sliding rod 77 and the side push rod 76 are both fixed on a sliding block, a second inclined wedge 79 is arranged on the sliding block, and a sixth elastic unit 78 for driving the sliding block to be far away from the positioning table 71 is arranged between the sliding block and the positioning table 71.

Preferably, as shown in fig. 3, the discharging mechanism includes a discharging drive plate 60 movably disposed in the vertical direction, a first wedge drive block 61 in interference fit with the first wedge 721 and a second wedge drive block 62 in interference fit with the second wedge 79 are disposed on the discharging drive plate 60, when the discharging drive plate 60 descends, the first wedge drive block 61 can drive the guide block 72 to separate from the positioning table 71, and the second wedge drive block 62 can drive the ejector block 74 to eject the inner half shell 1 and drive the side push rod 76 to push the inner half shell 1 away from the positioning table 71.

Preferably, the transfer mechanism 10 is a rotary disk, and the rotary disk is rotatably arranged along a vertical axis; four groups of positioning mechanisms 70 are arranged at equal intervals along the circumferential direction of the rotary disc, and the feeding station, the side hoop 4 assembling station, the tightener assembling station and the unloading station are arranged at equal angular intervals along the circumferential direction of the rotary disc and are respectively in one-to-one correspondence with the four groups of positioning mechanisms 70.

Example 2

As shown in fig. 1, an intelligent safety helmet comprises a helmet shell 6, a top wear 7, side hoops 4, a cushion pad 8 and a chin strap, wherein the side hoops 4 are installed at the inner side edge of the helmet shell 6, the top wear 7 is connected with the side hoops 4, the cushion pad 8 is positioned in the center of the top wear 7, two ends of the chin strap are connected with the side hoops 4, and a drawstring 5 and a tightener for adjusting the tightness of the side hoops 4 are arranged at the rear side of the side hoops 4; the top wear 7 is provided with a first pressure sensor 801, the side hoop 4 is provided with a second pressure sensor 401, the tightener is driven by a servo motor, the first pressure sensor 801, the second pressure sensor 401 and the servo motor are all electrically connected with a control module, the control module controls the servo motor to tighten the drawstring 5 when the first pressure sensor 801 detects head pressure, and the control module controls the servo motor to stop rotating when the pressure detected by the second pressure sensor 401 reaches a preset value; when the detection pressure of the first pressure sensor 801 disappears, the control module controls the servo motor to release the pull belt 5; the power supply module is used for supplying power to the first pressure sensor 801, the second pressure sensor 401, the servo motor and the control module; the tightener comprises an inner half shell 1 and an outer half shell 2, the inner half shell 1 comprises an arc-shaped bottom wall 101 and two side walls 102, two arc-shaped edges of the arc-shaped bottom wall 101 are convexly arranged towards one side of an outer arc surface, arc-shaped grooves 103 are arranged on the inner sides of the two side walls 102, a fixed shaft 104 is arranged in the center of the outer arc surface of the arc-shaped bottom wall 101, crosspieces 105 connected with the two side walls 102 are arranged at two ends of the two side walls 102, and buckles are arranged on the outer sides of the centers; the outer half shell 2 comprises an arc plate 201 clamped with the inner half shell 1, two ends of the arc plate 201 are inserted between the cross bar 105 and the arc bottom wall 101, a lug 203 which is convexly extended towards the outer sides of the two side walls 102 of the inner half shell 1 is arranged in the middle of the arc plate 201, a clamping groove matched with a buckle is arranged on the lug 203, the servo motor is positioned in the center of the arc plate 201, a gear 3 is arranged between the outer half shell 2 and the inner half shell 1, the gear 3 is sleeved on the fixed shaft 104, a square shaft 301 is arranged on the gear 3, and a square hole 204 matched with the square shaft 301 is arranged in the center of a rotating shaft of; the side hoop 4 comprises a strip-shaped body and pull belts 5 arranged at two ends of the strip-shaped body, the pull belts 5 and the strip-shaped body form an included angle, waist-shaped holes are formed in the pull belts 5, one straight edge of each waist-shaped hole is provided with a rack tooth, and one end of each waist-shaped hole is provided with a notch part penetrating through the end part of the pull belt 5;

the side hoop 4 and the tightener are assembled by adopting the following method:

step 1: mounting the inner half shell 1 on the positioning means 70 described in example 1;

step 2: the pull belts 5 at the two ends of the side hoop 4 are inserted between the arc-shaped grooves 103 at the two sides of the inner half shell 1;

and step 3: mounting the gear 3 on the fixed shaft 104 and engaging the gear 3 with the rack teeth;

and 4, step 4: pressing the outer half shell 2 on the inner half shell 1, and inserting the square hole 204 on the rotating shaft of the servo motor and the square shaft 301 on the gear 3;

and 5: the assembly of the retractor and the side band 4 is removed from the positioning mechanism 70 and the assembly is completed.

In the step 1, the inner half shell 1 is mounted on the positioning mechanism 70 by using the feeding mechanism 20 described in embodiment 1.

In the step 2, the side hoop assembly device 30 described in embodiment 1 is used to insert the side hoop 4 into the arc-shaped grooves 103 on both sides of the inner half shell 1.

In step 3, the gear 3 is assembled by using the gear 3 mounting apparatus described in embodiment 1.

In the step 4, the outer half shell 2 is press-fitted by using the tightener assembly device 50 described in embodiment 1;

in the step 5, the assembly of the tightener and the side band 4 is removed from the positioning mechanism 70 by using the discharging mechanism described in embodiment 1.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides a multistation workstation for safety helmet equipment which characterized in that: the device comprises a transfer mechanism (10), wherein a positioning mechanism (70) used for fixing a tightener is arranged on the transfer mechanism (10), the tightener comprises an inner half shell (1), the inner half shell (1) comprises an arc-shaped bottom wall (101) and two side walls (102) which are convexly arranged from two arc edges of the arc-shaped bottom wall (101) to one side of an outer arc surface, arc-shaped grooves (103) are arranged on the inner sides of the two side walls (102), a fixed shaft (104) is arranged at the center of the outer arc surface of the arc-shaped bottom wall (101), the positioning mechanism (70) comprises a positioning table (71), and an arch-shaped positioning groove matched with the inner half shell (1) in shape is arranged on the positioning table (; two ends of the positioning table (71) are respectively provided with a guide block (72), the bottom of the guide block (72) is provided with an arc-shaped guide surface, and the upper end of the arc-shaped guide surface is connected with the top wall of an arc-shaped groove (103) of the side wall (102) of the inner half shell (1) in the arc-shaped positioning groove; and a feeding station and an unloading station are arranged on a transfer path of the transfer mechanism (10), the feeding station is provided with a feeding mechanism (20) for installing the inner half shell (1) on the positioning table (71), and the unloading station is used for moving the inner half shell (1) out of the positioning table (71).

2. The multi-station workstation for headgear assembly of claim 1, wherein: feed mechanism (20) are including arch vibration groove (21) and material loading manipulator (22), interior half shell (1) arranges in proper order in arch vibration groove (21), material loading manipulator (22) are used for snatching interior half shell (1) in arch vibration groove (21) and transfer to on location platform (71).

3. The multi-station workstation for headgear assembly of claim 1, wherein: the two guide blocks (72) are respectively opened and closed along the horizontal direction relative to the two ends of the positioning table (71); the positioning device further comprises a fourth elastic unit (73), wherein the fourth elastic unit (73) is assembled to enable the elastic force of the fourth elastic unit to drive the guide block (72) to be abutted against the end face of the positioning table (71).

4. A multi-station workstation for headgear assembly according to claim 3, wherein: still be equipped with on guide block (72) to protruding the limit convex part (722) of feeling relieved setting in the top at arch constant head tank both ends, the base at interior half shell (1) both ends is equipped with the chamfer, the upper end of limit convex part (722) is equipped with the slope guide face with chamfer matched with, and the in-process chamfer that inserts arch constant head tank at interior half shell (1) top-down can pass through two guide blocks (72) to location platform (71) both ends outside through the slope guide face, and two guide blocks (72) support tightly again with location platform (71) both ends under the effect of fourth elastic element (73) when interior half shell (1) inserts arch constant head tank completely, make limit convex part (722) press the top at interior half shell (1) both ends.

5. The multi-station workstation for headgear assembly of claim 4, wherein: the top block (74) that the arch positioning groove bottom set up, the side push rod (76) that one side set up wherein of arch positioning groove, top block (74) set up along vertical direction activity, side push rod (76) set up along the horizontal direction activity.

6. A multistation workstation for headgear assembly according to claim 5 wherein: be equipped with fifth elastic element (75) between kicking block (74) and location platform (71), fifth elastic element (75) are assembled for its elasticity can order about kicking block (74) downstream, still include side slide bar (77) that are used for driving kicking block (74) lifting, be equipped with the slide wedge driving surface on side slide bar (77), kicking block (74) bottom is equipped with the slide wedge face, slide wedge driving surface and slide wedge face butt.

7. The multi-station workstation for headgear assembly of claim 6, wherein: a first inclined wedge block (721) is arranged on the guide block (72); the side sliding rod (77) and the side push rod (76) are fixed on a sliding block, a second inclined wedge block (79) is arranged on the sliding block, and a sixth elastic unit (78) used for driving the sliding block to be far away from the positioning table (71) is arranged between the sliding block and the positioning table (71); the discharging mechanism comprises a discharging driving plate (60), a first wedge-shaped driving block (61) matched with a first inclined wedge block (721) in an abutting mode is arranged on the discharging driving plate (60), a second wedge-shaped driving block (62) matched with a second inclined wedge block (79) in an abutting mode is arranged on the discharging driving plate (60), when the discharging driving plate (60) is arranged downwards, the first wedge-shaped driving block (61) can drive a guide block (72) to be separated from a positioning table (71), and the second wedge-shaped driving block (62) can drive an ejector block (74) to jack up an inner half shell (1) and drive a side push rod (76) to push the inner half shell (1) away from one side of the positioning table (71).

8. The multi-station workstation for headgear assembly of claim 7, wherein: the transfer mechanism (10) is a rotary disc which is rotatably arranged along a vertical axis.

9. The multi-station workstation for headgear assembly of claim 8, wherein: the positioning mechanisms (70) are arranged in four groups at equal intervals along the circumferential direction of the rotary disc.

10. The utility model provides an intelligent safety helmet equipment system which characterized in that: a multi-station workstation for headgear assembly comprising any one of claims 1 to 9; a side hoop (4) assembling station and a tightener assembling station are also arranged on the transfer path of the transfer mechanism (10); the feeding station, the side hoop (4) assembling station, the tightener assembling station and the discharging station are sequentially arranged along a transfer path of the transfer mechanism (10); the side hoop (4) assembling station is provided with a side hoop assembling device (30) and a gear (3) assembling mechanism, and the tightener assembling station is provided with a tightener assembling device (50).