CN109457281B - Stretcher for hanging suspension springs - Google Patents

Stretcher for hanging suspension springs Download PDF

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Publication number
CN109457281B
CN109457281B CN201811609683.5A CN201811609683A CN109457281B CN 109457281 B CN109457281 B CN 109457281B CN 201811609683 A CN201811609683 A CN 201811609683A CN 109457281 B CN109457281 B CN 109457281B
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clamping
positioning
lifting hook
stretching
cylinder
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CN109457281A (en
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尤伟兴
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WUXI FENGLI SPRING CO Ltd
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WUXI FENGLI SPRING CO Ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48After-treatment of electroplated surfaces

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention provides a stretcher for hanging suspension springs, which can solve the problems that the existing hanging suspension springs are required to be manually broken and adhered by workers, the labor intensity of the workers is high, and the batch production is not facilitated. The device comprises a workbench and a PLC controller, wherein a positioning assembly, a clamping and stretching assembly and a material collecting frame are arranged on the workbench; the positioning assembly comprises an upper lifting hook positioning seat and a lower lifting hook positioning seat, and the upper lifting hook positioning seat and the lower lifting hook positioning seat are opposite to each other front and back; the clamping and stretching assembly comprises a stretching mechanism and a clamping mechanism, and the stretching mechanism and the clamping mechanism are opposite to each other front and back; the panel between the upper lifting hook positioning seat and the lower lifting hook positioning seat is provided with a waist-shaped hole along the left-right direction, a material taking mechanism is arranged below the waist-shaped hole, and the material taking mechanism is used for transferring a hanging spring on the positioning assembly onto the clamping and stretching assembly to stretch and remove adhesion, and transferring the hanging spring with adhesion removed to a material collecting frame.

Description

Stretcher for hanging suspension springs
Technical Field
The invention relates to the field of processing equipment of suspension springs, in particular to a stretcher for suspension springs.
Background
Fig. 1 is a suspension spring for a drum washing machine, which comprises an upper suspension hook 1, a spring main body 2 and a lower suspension hook 3 from top to bottom, wherein the upper suspension hook and the lower suspension hook are mutually perpendicular, and the suspension spring is used for suspending and hoisting an outer drum of the washing machine in a washing machine box body.
In order to prevent the rust of hanging suspension spring, can electroplate one deck protection lacquer on its whole, electroplate the back, spiral on the spring main part can adhere together, can't use, needs external force to pull away the adhesion, and current mode of pulling away is that the workman is manual breaks open, wastes time and energy, and workman intensity of labour is very big, and production efficiency is lower, is unfavorable for batch production.
Disclosure of Invention
Aiming at the technical problems that the existing suspension springs are required to be manually broken and adhered by workers, the labor intensity of the workers is high, and mass production is not facilitated, the invention provides a stretcher for the suspension springs, which can automatically pull the adhesion of the suspension springs apart, and improves the production efficiency.
The technical scheme is as follows: a stretcher of suspension hanging spring, its characterized in that: the automatic feeding device comprises a workbench and a PLC (programmable logic controller), wherein a positioning assembly and a clamping and stretching assembly which are respectively and electrically connected with the PLC are arranged on a panel of the workbench at intervals from left to right, and a collecting frame is arranged on the right side of the workbench;
the positioning assembly comprises an upper lifting hook positioning seat used for positioning an upper lifting hook of the suspension lifting spring and a lower lifting hook positioning seat used for positioning a lower lifting hook of the suspension lifting spring, and the upper lifting hook positioning seat and the lower lifting hook positioning seat are opposite to each other from front to back; the clamping and stretching assembly comprises a stretching mechanism for stretching the upper lifting hook and a clamping mechanism for clamping and fixing the lower lifting hook, and the stretching mechanism and the clamping mechanism are opposite to each other front and back;
the panel between the upper lifting hook positioning seat and the lower lifting hook positioning seat is provided with a waist-shaped hole along the left-right direction, a material taking mechanism electrically connected with the PLC is arranged below the waist-shaped hole, and the material taking mechanism is used for transferring a hanging spring on the positioning assembly to the clamping and stretching assembly for stretching and removing adhesion, and transferring the hanging spring for removing adhesion to the material collecting frame.
It is further characterized by:
the lifting hook positioning seat comprises a positioning block I and a supporting block I, the positioning block I and the supporting block I are respectively and fixedly installed on the panel, a positioning groove with a through length is formed in the top surface of the positioning block I, a jack communicated with the positioning groove is formed in the lower portion of the positioning groove, a triangular through groove is formed in the rear side of the positioning block I and the top surface of the positioning block I, a rod portion of the lifting hook is matched and inserted into the positioning groove, a hook portion of the lifting hook is matched and inserted into the jack, and a spring main body of the hanging lifting spring is supported in the triangular through groove.
The lower lifting hook positioning seat comprises a positioning block II and a positioning pin, the positioning block II is fixed on the panel, the positioning pin is vertically fixed on the top surface of the positioning block II, the hook part of the lower lifting hook is placed on the top surface of the positioning block II and hooks the positioning pin, the top surface of the positioning block II is also provided with a proximity switch I, and the proximity switch I is electrically connected with the PLC controller.
The stretching mechanism comprises a stretching cylinder and a first guide rail, the stretching cylinder and the first guide rail are respectively fixed on the panel from front to back, the axial direction of the stretching cylinder and the first guide rail is perpendicular to the waist-shaped hole, a sliding seat is slidably mounted on the first guide rail, a piston rod of the stretching cylinder is fixedly connected to the front side surface of the sliding seat and used for driving the sliding seat to move back and forth, a pull rod which is opposite to the clamping mechanism is mounted on the sliding seat, the axial direction of the pull rod is parallel to the first guide rail, a second support block is fixedly connected to the sliding seat which is positioned at the rear side of the pull rod, a vertical jack is formed in the rear end of the pull rod, a triangular through groove is formed in the top surface of the second support block, the upper lifting hook can be downwards inserted into the vertical jack, a spring main body of the hanging spring is supported in the triangular through groove, a bolt which traverses the vertical jack is also mounted on the side portion of the sliding seat, a second proximity switch is mounted on the sliding seat, a second sensing portion of the proximity switch stretches into the vertical jack, and the second proximity switch and the stretching cylinder are respectively connected with the electric controller.
The sliding seat comprises a bottom plate and a rectangular frame, the bottom plate is slidably mounted on the first guide rail, the rectangular frame is fixedly mounted on the bottom plate, and a piston rod of the stretching cylinder is fixedly connected to the front side surface of the rectangular frame; an angle sensor is arranged in the rectangular frame and is electrically connected with the PLC, the sensing end of the angle sensor is coaxially and fixedly connected with the front end of the pull rod, the rear end of the pull rod penetrates through the rear side surface of the rectangular frame, and the pull rod is rotationally connected with the rectangular frame; the vertical jack on the pull rod comprises a front avoidance hole and a rear guide hole, the front avoidance hole is communicated with the rear guide hole, the width of the rear guide hole is matched with the diameter of the rod part of the upper lifting hook, the width of the front avoidance hole is larger than that of the rear guide hole, and the bolt transversely penetrates through the rear guide hole; and the second supporting block is fixedly connected to the bottom plate.
The limiting block is fixedly connected to the rear side face of the rectangular frame, the pull rod penetrates through the limiting block and is rotationally connected with the limiting block, a circular ring with a notch is integrally formed on the rear side face of the limiting block, the notch is arranged upwards, a limiting rod is vertically fixedly connected to the pull rod corresponding to the notch, and the upper end of the limiting rod stretches into the notch.
The clamping mechanism comprises a base and a clamping cylinder, the structure of the base is the same as that of the lower lifting hook positioning seat, a third proximity switch is further installed on the base, the third proximity switch and the clamping cylinder are respectively and electrically connected with the PLC, the clamping cylinder is located at the rear side of the base and fixedly connected with the panel, the axial direction of the clamping cylinder is perpendicular to the panel, the end of a piston rod of the clamping cylinder is hinged with one end of a connecting rod I, the middle part of the connecting rod I is hinged with the upper end of a connecting rod II, the lower end of the connecting rod II is hinged with a cylinder body of the clamping cylinder, a pressing plate is fixedly connected with the bottom surface of the other end of the connecting rod I and used for downwards pressing the lower lifting hook placed on the base.
The material taking mechanism comprises a lifting driving mechanism, a transverse cylinder and two clamping jaw cylinders from bottom to top, wherein the lifting driving mechanism comprises a lifting motor, the transverse cylinder and the two clamping jaw cylinders are respectively and electrically connected with the PLC, the lifting motor is fixedly installed on the workbench, a horizontal supporting plate is fixedly connected to the top end of a piston rod of the lifting motor, a sliding block is fixedly connected to the horizontal supporting plate, a second guide rail is slidably installed on the sliding block, the second guide rail is parallel and just opposite to the second guide rail, one end of a piston rod of the transverse cylinder is connected with one end of the second guide rail and is used for driving the second guide rail to move left and right, two clamping jaw cylinders are installed on the second guide rail side by side, and extend out of the waist-shaped holes and act simultaneously, one clamping jaw cylinder is used for clamping a suspension spring on the positioning assembly and transferring the suspension spring to the clamping and stretching and removing adhesion on the stretching assembly, and the other clamping jaw cylinder is used for clamping and removing a suspension spring and transferring a piston rod to the second guide rail to a collecting frame.
The utility model discloses a waste basket, including the frame that gathers materials, gather materials the track and set up including finished basket, waste basket and collection track, gather materials the track left end and be the feed end and extend to panel top, gather materials orbital middle part and be equipped with the waste outlet, gather materials orbital right-hand member and be the finished product export, be located waste outlet with it has the upset cylinder to gather materials on orbital bottom surface to gather materials between the finished product export, the upset cylinder with the automatically controlled connection of PLC controller, the upper cover of waste outlet closes and installs the turnover plate, the right-hand member bottom surface of turnover plate and the upper end rigid coupling of connecting rod III, the lower extreme of connecting rod III with the piston rod of upset cylinder articulates, the upper end of connecting rod III still rigid coupling has the pivot, the both ends of pivot respectively with gather materials orbital front and back both sides board rotation is connected, the waste basket sets up the waste outlet below, the finished basket sets up the finished product export below.
The safety light curtain is characterized by further comprising a safety light curtain, wherein a light projector and a light receiver of the safety light curtain are respectively arranged on the left side and the right side of the lower lifting hook positioning seat and the left side and the right side of the clamping mechanism, and are positioned on the rear portion of the lower lifting hook positioning seat and the rear portion of the clamping mechanism, and the safety light curtain is electrically connected with the PLC.
The beneficial effects of the invention are as follows:
1. the stretching device is provided with the positioning component, the clamping stretching component and the material taking mechanism, the hanging spring is firstly placed on the positioning component by a worker, the material taking mechanism can transfer the hanging spring to the clamping stretching component, the clamping stretching component comprises the stretching mechanism and the clamping mechanism, so that the clamping mechanism clamps and fixes the lower lifting hook of the hanging spring, the upper lifting hook of the hanging spring is stretched by the stretching mechanism, the adhesion on the hanging spring can be broken, then the material taking component transfers the hanging spring after adhesion removal to the material collecting frame, and the automatic stretching adhesion removal of the hanging spring is completed.
2. According to the stretching device, the angle sensor is further arranged on the stretching mechanism, so that the hanging spring can be stretched, meanwhile, whether the upper hook and the lower hook are vertical or not can be detected, unqualified products are automatically selected, and therefore independent detection is not needed after the hanging spring is stretched, and the production efficiency of the hanging spring is further improved.
Drawings
FIG. 1 is a schematic view showing the overall structure of a suspension spring for a drum washing machine;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is an enlarged view of area A of FIG. 3;
FIG. 5 is a schematic diagram of the overall structure of the present invention;
FIG. 6 is an enlarged view of region C of FIG. 5;
FIG. 7 is a schematic view of the structure of the take-off mechanism;
fig. 8 is a sectional view taken along line B-B of fig. 3.
Reference numerals:
1-lifting a hook; 2-a spring body; 3-a lower lifting hook; 4-a workbench; 5-panels; 11-waist-shaped holes; 13-approach switch one; 14-a second proximity switch; 15-a third proximity switch; 16-a bracket; 171-a light projector; 172-a light receiver;
6-an aggregate frame; 61-aggregate track; 62-a feed end; 621-clamping jaw avoiding grooves; 63-waste outlet; 64-a finished product outlet; 65-overturning air cylinders; 66-turning plate; 67-connecting rod III; 68-rotating shaft; 69-side plates;
7-lifting hook positioning seats; 71-positioning block I; 72-supporting block I; 711-positioning groove; 712-jack;
8-a lower lifting hook positioning seat; 81-positioning block II; 82-locating pins;
9-stretching mechanism; 91-stretching cylinder; 92-a first guide rail; 93-a slide; 931-floor; 932-a rectangular frame; 933-limiting block; 934-notch; 94-an angle sensor; 95-coupling; 96-pull rod; 961-anterior relief hole; 962-rear guide hole; 97-supporting block II; 98-a bolt; 99-limiting rods;
10-a clamping mechanism; 101-a base; 102, clamping a cylinder; 103-first connecting rod; 104-a second connecting rod; 105-pressing plate;
12-a material taking mechanism; 121-a lifting motor; 122-transverse cylinder; 123-clamping jaw cylinder; 124-horizontal support plate; 125-sliders; 126-guide rail two.
Detailed Description
Referring to fig. 1 to 8, the stretcher for hanging a suspension spring comprises a workbench 4 and a PLC controller, wherein a positioning component and a clamping and stretching component are arranged on a panel 5 of the workbench 4 at intervals from left to right, the positioning component and the clamping and stretching component are respectively and electrically connected with the PLC controller, and a collecting frame 6 is arranged on the right side of the workbench 4; the positioning assembly comprises an upper hook positioning seat 7 for positioning the upper hook 1 of the suspension spring and a lower hook positioning seat 8 for positioning the lower hook 3 of the suspension spring, wherein the upper hook positioning seat 7 and the lower hook positioning seat 8 are opposite to each other front and back; the clamping and stretching assembly comprises a stretching mechanism 9 used for stretching the upper lifting hook 1 and a clamping mechanism 10 used for clamping and fixing the lower lifting hook 3, wherein the stretching mechanism 9 and the clamping mechanism 10 are opposite to each other front and back; the panel 5 between the upper lifting hook positioning seat 7 and the lower lifting hook positioning seat 8 is provided with a waist-shaped hole 11 along the left-right direction, a material taking mechanism 12 electrically connected with the PLC is arranged below the waist-shaped hole 11, and the material taking mechanism 12 is used for transferring a hanging spring on the positioning assembly onto the clamping and stretching assembly to stretch and remove adhesion, and transferring the hanging spring with adhesion removal onto the material collecting frame 6.
Referring to fig. 3, the upper hook positioning seat 7 includes a positioning block one 71 and a supporting block one 72 are respectively and fixedly mounted on the panel 5, a positioning groove 711 which is long along the front-rear direction is arranged on the top surface of the positioning block one 71, a jack 712 which is communicated with the positioning groove 711 is arranged below the positioning groove 711, the supporting block one 72 is arranged at the rear side of the positioning block one 71 and is provided with a triangle through groove on the top surface, the rod part of the upper hook 1 is matched and inserted into the positioning groove 711, the hook part of the upper hook 1 is matched and inserted into the jack 712, and the spring main body 2 of the suspension spring is supported in the triangle through groove; the lower lifting hook positioning seat 8 comprises a positioning block II 81 and a positioning pin 82, the positioning block II 81 is fixed on the panel 5, the positioning pin 82 is vertically fixed on the top surface of the positioning block II 81, the hook part of the lower lifting hook 3 is placed on the top surface of the positioning block II 81 and hooks the positioning pin 82, the top surface of the positioning block II 81 is also provided with a proximity switch I13, and the proximity switch I13 is electrically connected with the PLC controller. Through the cooperation of locating piece one and locating piece two, can realize stable support and location to mutually perpendicular's last lifting hook and lower lifting hook, the supporting shoe one realizes the stable support to the spring main part to accomplish the stable support and the accurate location of whole suspension hanging spring, proximity switch one is used for responding to suspension hanging spring and places in place, and gives the signal to the PLC controller, makes the mechanism carry out the action of next step.
Referring to fig. 4 and 5, the stretching mechanism 9 includes a stretching cylinder 91 and a first guide rail 92, the stretching cylinder 91 and the first guide rail 92 are respectively fixed on the panel 5 from front to back and both are perpendicular to the waist-shaped hole 11 in the axial direction, a sliding seat 93 is slidably mounted on the first guide rail 92, the sliding seat 93 includes a bottom plate 931 and a rectangular frame 932, the bottom plate 931 is slidably mounted on the first guide rail 92, the rectangular frame 932 is fixedly mounted on the bottom plate 931, and a piston rod of the stretching cylinder 91 is fixedly connected on the front side surface of the rectangular frame 932 for driving the sliding seat 93 to move back and forth; an angle sensor 94 is fixedly arranged in the rectangular frame 932, the angle sensor 94 is electrically connected with the PLC, the sensing end of the angle sensor 94 is coaxially and fixedly connected with the front end of a pull rod 96 through a coupler 95, the rear end of the pull rod 96 passes through the rear side surface of the rectangular frame 932, the pull rod 96 is rotationally connected with the rear side panel of the rectangular frame 932 through a bearing, and the axial direction of the pull rod 96 is parallel to the first guide rail 92; the bottom plate 931 positioned at the rear side of the pull rod 96 is fixedly connected with a second supporting block 97, the rear end of the pull rod 96 is provided with a vertical jack, the vertical jack comprises a front avoidance hole 961 and a rear guide hole 962, the front avoidance hole 961 is communicated with the rear guide hole 962, the width of the rear guide hole 962 is matched with the diameter of the rod part of the upper hanging hook 1, the width of the front avoidance hole 961 is larger than that of the rear guide hole 962, the side part of the pull rod 96 is also provided with a bolt 98 traversing the rear guide hole 962, the top surface of the second supporting block 97 is provided with a triangular through groove, the hook part of the upper hanging hook 1 can be downwards inserted into the front avoidance hole 961, the rod part of the upper hanging hook 1 is matched with the rear guide hole 962, and the spring main body 2 of the hanging hook is supported in the triangular through groove of the second supporting block 97; the bottom plate of the sliding seat 93 is also provided with a second proximity switch 14, the sensing part of the second proximity switch 14 stretches into the vertical jack, and the second proximity switch 14 and the stretching cylinder 91 are respectively and electrically connected with the PLC controller.
Referring to fig. 4, a limiting block 933 is further fixedly connected to the rear side surface of the rectangular frame 932, the pull rod 96 passes through the limiting block 933 and is rotationally connected with the limiting block 933, a ring with a notch 934 is integrally formed on the rear side surface of the limiting block 933, the notch 934 is upward, a limiting rod 99 is vertically fixedly connected to the pull rod 96 corresponding to the notch 934, and the upper end of the limiting rod 99 extends into the notch 934.
Referring to fig. 3 and 6, the clamping mechanism 10 includes a base 101 and a clamping cylinder 102, the structure of the base 10 is the same as that of the lower hook positioning seat 8, a third proximity switch 15 is further installed on the base 101, the third proximity switch 15 and the clamping cylinder 102 are respectively and electrically connected with the PLC controller, the clamping cylinder 102 is located at the rear side of the base 101 and fixedly connected on the panel 5, the axial direction of the clamping cylinder 102 is perpendicular to the panel 5, the end part of a piston rod of the clamping cylinder 102 is hinged with one end of a first connecting rod 103, the middle part of the first connecting rod 103 is hinged with the upper end of a second connecting rod 104, the lower end of the second connecting rod 104 is hinged with the cylinder body of the clamping cylinder 102, a pressing plate 105 is fixedly connected on the bottom surface of the other end of the first connecting rod 103, and the pressing plate 105 is used for pressing the lower hook 3 placed on the base 101 downwards.
When the material taking mechanism 12 transfers the hanging suspension spring on the positioning assembly to the clamping and stretching mechanism, the lower lifting hook 3 of the hanging suspension spring is placed on the base 101, after the proximity switch III 15 on the base 101 senses the lower lifting hook 3, the PLC controller controls the piston rod of the clamping cylinder 102 to extend out, under the action of the first connecting rod 103 and the second connecting rod 104, the pressing plate 105 presses down to press the lower lifting hook 3 on the base 101, and the clamping and fixing of the lower lifting hook 3 are completed; simultaneously, the spring main body 2 of the suspension hanging spring is placed in the triangular through groove of the second supporting block 97, the upper hanging hook 1 is inserted into the vertical jack at the rear end of the pull rod 96, after the second proximity switch 14 in the vertical jack senses the upper hanging hook 1, the PLC controller controls the piston rod of the stretching cylinder 91 to shrink, so that the sliding seat 93 slides forwards to drive the bolt 98 on the pull rod 96 to pull the upper hanging hook 1 of the suspension hanging spring forwards, further the adhesion on the spring main body 2 is broken, after stretching is completed, the piston rods of the stretching cylinder 91 and the clamping cylinder 102 automatically reset, the suspension hanging spring also contracts and resets, the second proximity switch 14 senses the upper hanging hook 1 again, and the PLC controller control mechanism performs the next action. When the suspension spring is stretched, the width of the rear guide hole 962 of the vertical jack is adapted to the diameter of the rod part of the upper lifting hook 1, so that when the suspension spring is stretched, the pull rod 96 can be self-adapted to the deflection angle of the hook part of the upper lifting hook 1, namely, if the upper lifting hook 1 is not perpendicular to the lower lifting hook 3, the pull rod 96 can rotate by a certain angle in the pulling process, and the angle sensor 94 transmits the angular displacement of the pull rod 96 to the PLC controller, so that the identification of unqualified products is realized. By providing the stopper 933 and the stopper rod 99, the stopper rod 99 can only swing back and forth in the notch 934 of the stopper 933, and the excessive rotation angle of the pull rod 96 can be prevented. After the pull rod 96 rotates, once qualified products are encountered next time, the angle of the lifting hook 1 can be self-adaptively adjusted, so that automatic correction is realized, and normal stretching is performed. The stretcher has a stretching function and a detection function, so that whether the upper lifting hook and the lower lifting hook are vertical or not is not required to be independently detected, and the production efficiency can be greatly improved.
Referring to fig. 2 and 7, the material taking mechanism 12 comprises a lifting driving mechanism, a transverse air cylinder 122 and two clamping jaw air cylinders 123 from bottom to top, the lifting driving mechanism comprises a lifting motor 121, the transverse air cylinder 122 and the two clamping jaw air cylinders 123 are respectively and electrically connected with a PLC controller, the lifting motor 121 is fixedly installed on a bracket 16 below a panel 5 of a workbench, a horizontal supporting plate 124 is fixedly connected to the top end of a piston rod of the lifting motor 121, a sliding block 125 is fixedly connected to the horizontal supporting plate 124, a guide rail two 126 is slidably installed on the sliding block 125, the guide rail two 126 is parallel and opposite to the lower portion of the waist-shaped hole 11, one end of a piston rod of the transverse air cylinder 122 is fixedly installed on the bracket 16 and connected with one end of the guide rail two 126, the transverse air cylinder 122 is used for driving the guide rail two 126 to move left and right, two clamping jaw air cylinders 123 are installed on the guide rail two clamping jaw air cylinders 123 side by side, the two clamping jaw air cylinders 123 extend out of the waist-shaped hole 11 and act simultaneously, one air cylinder 123 is used for clamping a suspension spring on a positioning assembly and transferring the suspension spring to a clamping stretching assembly to remove adhesion, and the other clamping jaw air cylinder 123 is used for clamping and removing the adhesion to a suspension spring to clamp to remove adhesion and aggregate. So designed, clamping jaw cylinder 123 presss from both sides tight spring main part 2, and elevator motor 121 drives clamping jaw cylinder 123 and rises, lifts up and breaks away from positioning mechanism or clamp stretching mechanism with hanging the hanging spring, and horizontal cylinder 122 will hang the hanging spring again and shift to next station, and after the transfer was accomplished, two clamping jaw cylinders 123 were automatic to be reset, waited for next action, through setting up two clamping jaw cylinders 123, realized getting simultaneously and put the material, can improve production efficiency.
Referring to fig. 3, 5 and 8, the collecting frame 6 includes a finished product basket (not shown), a waste basket (not shown) and a collecting rail 61, the collecting rail 61 is arranged in a downward tilting manner from left to right, the left end of the collecting rail 61 is a feeding end 62 and extends to above the panel 5, a waste outlet 63 is arranged in the middle of the collecting rail 61, the right end of the collecting rail 61 is a finished product outlet 64, a turnover cylinder 65 is hinged to the bottom surface of the collecting rail 61 between the waste outlet 63 and the finished product outlet 64, the turnover cylinder 65 is electrically connected with a PLC controller, a turnover plate 66 is mounted on the upper cover of the waste outlet 63, the right end bottom surface of the turnover plate 66 is fixedly connected with the upper end of a connecting rod III 67, the lower end of the connecting rod III 67 is hinged to a piston rod of the turnover cylinder 65, the upper end of the connecting rod III 67 is fixedly connected with a rotating shaft 68, two ends of the rotating shaft 68 are respectively connected with front and rear side plates 69 of the collecting rail 61 in a rotating manner, the waste basket is arranged below the waste outlet 63, and the finished product basket is arranged below the finished product outlet 64. So designed, when the suspension springs are detected as being acceptable, the overturning cylinder 65 does not work, and the overturning plate 66 covers the waste outlet 63, so that the suspension springs fall into the finished product basket; when the hanging spring is detected as an unqualified product, the piston rod of the overturning cylinder 65 extends out, the right end of the overturning plate 66 rotates around the rotating shaft 68 under the action of the connecting rod III 67, so that the left end of the overturning plate 66 is overturned upwards, the waste outlet 63 is opened, the hanging spring falls into the waste basket, the automatic classification of the qualified product and the unqualified product is realized, and the production efficiency is further improved. In order to enable the clamping jaw cylinder 123 of the material taking mechanism to smoothly put the suspension hanging spring into the feeding end 62 of the material collecting track 61, a clamping jaw avoiding groove 621 is formed in the bottom surface of the feeding end 62, the clamping jaw cylinder 123 can be inserted into the clamping jaw avoiding groove 621 and then opened, the suspension hanging spring is directly put on the material collecting track 61, and the obliquely arranged material collecting track 61 is more convenient for the suspension hanging spring to roll into a finished product basket or a waste basket.
Referring to fig. 1, the stretcher of the present invention further includes a safety light curtain, wherein a light projector 171 and a light receiver 172 of the safety light curtain are respectively disposed at left and right sides of the lower hook positioning seat 8 and the clamping mechanism 10, and are disposed at rear portions of the lower hook positioning seat 8 and the clamping mechanism 10, and the safety light curtain is electrically connected with the PLC controller. By means of the design, when workers are in the discharging process, the safety light curtain can sense hands of the workers, the PLC controller controls the whole machine to be not operated, only when the workers retract hands, the clamping jaw air cylinder of the material taking mechanism can be effectively prevented from injuring the workers accidentally, and safety of equipment is improved.

Claims (7)

1. A stretcher of suspension hanging spring, its characterized in that: the automatic feeding device comprises a workbench and a PLC (programmable logic controller), wherein a positioning assembly and a clamping and stretching assembly which are respectively and electrically connected with the PLC are arranged on a panel of the workbench at intervals from left to right, and a collecting frame is arranged on the right side of the workbench;
the positioning assembly comprises an upper lifting hook positioning seat used for positioning an upper lifting hook of the suspension lifting spring and a lower lifting hook positioning seat used for positioning a lower lifting hook of the suspension lifting spring, and the upper lifting hook positioning seat and the lower lifting hook positioning seat are opposite to each other from front to back; the clamping and stretching assembly comprises a stretching mechanism for stretching the upper lifting hook and a clamping mechanism for clamping and fixing the lower lifting hook, and the stretching mechanism and the clamping mechanism are opposite to each other front and back;
a waist-shaped hole is formed in the panel between the upper lifting hook positioning seat and the lower lifting hook positioning seat along the left-right direction, a material taking mechanism electrically connected with the PLC is arranged below the waist-shaped hole, and the material taking mechanism is used for transferring a hanging spring on the positioning assembly to the clamping and stretching assembly for stretching and removing adhesion, and transferring the hanging spring for removing adhesion to the material collecting frame;
the stretching mechanism comprises a stretching cylinder and a first guide rail, the stretching cylinder and the first guide rail are respectively fixed on the panel from front to back, the axial directions of the stretching cylinder and the first guide rail are perpendicular to the waist-shaped hole, a sliding seat is slidably arranged on the first guide rail, a piston rod of the stretching cylinder is fixedly connected to the front side surface of the sliding seat and used for driving the sliding seat to move forwards and backwards, a pull rod opposite to the clamping mechanism is arranged on the sliding seat, the axial direction of the pull rod is parallel to the first guide rail, a second supporting block is fixedly connected to the sliding seat on the rear side of the pull rod, a vertical jack is formed in the rear end of the pull rod, a triangular through groove is formed in the top surface of the second supporting block, the upper lifting hook can be downwards inserted into the vertical jack, a spring main body of the hanging spring is supported in the triangular through groove, a bolt traversing the vertical jack is further arranged on the side part of the pull rod, a second proximity switch is further arranged on the sliding seat, a second sensing part of the proximity switch extends into the vertical jack, and the second proximity switch and the stretching cylinder are respectively connected with the PLC;
the clamping mechanism comprises a base and a clamping cylinder, the structure of the base is the same as that of the lower lifting hook positioning seat, a proximity switch III is further installed on the base, the proximity switch III and the clamping cylinder are respectively and electrically connected with the PLC, the clamping cylinder is positioned at the rear side of the base and fixedly connected with the panel, the axial direction of the clamping cylinder is perpendicular to the panel, the end part of a piston rod of the clamping cylinder is hinged with one end of a connecting rod I, the middle part of the connecting rod I is hinged with the upper end of a connecting rod II, the lower end of the connecting rod II is hinged with a cylinder body of the clamping cylinder, a pressing plate is fixedly connected on the bottom surface of the other end of the connecting rod I, and the pressing plate is used for downwards pressing the lower lifting hook placed on the base;
the material taking mechanism comprises a lifting driving mechanism, a transverse cylinder and two clamping jaw cylinders from bottom to top, wherein the lifting driving mechanism comprises a lifting motor, the transverse cylinder and the two clamping jaw cylinders are respectively and electrically connected with the PLC, the lifting motor is fixedly installed on the workbench, a horizontal supporting plate is fixedly connected to the top end of a piston rod of the lifting motor, a sliding block is fixedly connected to the horizontal supporting plate, a second guide rail is slidably installed on the sliding block, the second guide rail is parallel and just opposite to the second guide rail, one end of a piston rod of the transverse cylinder is connected with one end of the second guide rail and is used for driving the second guide rail to move left and right, two clamping jaw cylinders are installed on the second guide rail side by side, and extend out of the waist-shaped holes and act simultaneously, one clamping jaw cylinder is used for clamping a suspension spring on the positioning assembly and transferring the suspension spring to the clamping and stretching and removing adhesion on the stretching assembly, and the other clamping jaw cylinder is used for clamping and removing a suspension spring and transferring a piston rod to the second guide rail to a collecting frame.
2. The tension machine for suspension springs as recited in claim 1 wherein: the lifting hook positioning seat comprises a positioning block I and a supporting block I, the positioning block I and the supporting block I are respectively and fixedly installed on the panel, a positioning groove with a through length is formed in the top surface of the positioning block I, a jack communicated with the positioning groove is formed in the lower portion of the positioning groove, a triangular through groove is formed in the rear side of the positioning block I and the top surface of the positioning block I, a rod portion of the lifting hook is matched and inserted into the positioning groove, a hook portion of the lifting hook is matched and inserted into the jack, and a spring main body of the hanging lifting spring is supported in the triangular through groove.
3. The tension machine for suspension springs as recited in claim 1 wherein: the lower lifting hook positioning seat comprises a positioning block II and a positioning pin, the positioning block II is fixed on the panel, the positioning pin is vertically fixed on the top surface of the positioning block II, the hook part of the lower lifting hook is placed on the top surface of the positioning block II and hooks the positioning pin, the top surface of the positioning block II is also provided with a proximity switch I, and the proximity switch I is electrically connected with the PLC controller.
4. A suspension bolt stretcher according to claim 3, characterized in that: the sliding seat comprises a bottom plate and a rectangular frame, the bottom plate is slidably mounted on the first guide rail, the rectangular frame is fixedly mounted on the bottom plate, and a piston rod of the stretching cylinder is fixedly connected to the front side surface of the rectangular frame; an angle sensor is arranged in the rectangular frame and is electrically connected with the PLC, the sensing end of the angle sensor is coaxially and fixedly connected with the front end of the pull rod, the rear end of the pull rod penetrates through the rear side surface of the rectangular frame, and the pull rod is rotationally connected with the rectangular frame; the vertical jack on the pull rod comprises a front avoidance hole and a rear guide hole, the front avoidance hole is communicated with the rear guide hole, the width of the rear guide hole is matched with the diameter of the rod part of the upper lifting hook, the width of the front avoidance hole is larger than that of the rear guide hole, and the bolt transversely penetrates through the rear guide hole; and the second supporting block is fixedly connected to the bottom plate.
5. The tension machine for suspension springs as recited in claim 4 wherein: the limiting block is fixedly connected to the rear side face of the rectangular frame, the pull rod penetrates through the limiting block and is rotationally connected with the limiting block, a circular ring with a notch is integrally formed on the rear side face of the limiting block, the notch is arranged upwards, a limiting rod is vertically fixedly connected to the pull rod corresponding to the notch, and the upper end of the limiting rod stretches into the notch.
6. A suspension bolt stretcher according to claim 4 or 5, characterized in that: the utility model discloses a waste basket, including the frame that gathers materials, gather materials the track and set up including finished basket, waste basket and collection track, gather materials the track left end and be the feed end and extend to panel top, gather materials orbital middle part and be equipped with the waste outlet, gather materials orbital right-hand member and be the finished product export, be located waste outlet with it has the upset cylinder to gather materials on orbital bottom surface to gather materials between the finished product export, the upset cylinder with the automatically controlled connection of PLC controller, the upper cover of waste outlet closes and installs the turnover plate, the right-hand member bottom surface of turnover plate and the upper end rigid coupling of connecting rod III, the lower extreme of connecting rod III with the piston rod of upset cylinder articulates, the upper end of connecting rod III still rigid coupling has the pivot, the both ends of pivot respectively with gather materials orbital front and back both sides board rotation is connected, the waste basket sets up the waste outlet below, the finished basket sets up the finished product export below.
7. The tension machine for suspension springs as recited in claim 1 wherein: the safety light curtain is characterized by further comprising a safety light curtain, wherein a light projector and a light receiver of the safety light curtain are respectively arranged on the left side and the right side of the lower lifting hook positioning seat and the left side and the right side of the clamping mechanism, and are positioned on the rear portion of the lower lifting hook positioning seat and the rear portion of the clamping mechanism, and the safety light curtain is electrically connected with the PLC.
CN201811609683.5A 2018-12-27 2018-12-27 Stretcher for hanging suspension springs Active CN109457281B (en)

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JP2016044315A (en) * 2014-08-20 2016-04-04 和光工業株式会社 Hanger hook device for metal plating processing
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CN207046402U (en) * 2017-06-23 2018-02-27 昆山倚天自动化科技股份有限公司 A kind of full-automatic spring fitting device
CN207495405U (en) * 2017-10-13 2018-06-15 广东欧美亚智能装备有限公司 Automatic reed pipe is blown and stretching device
CN209338675U (en) * 2018-12-27 2019-09-03 无锡丰力弹簧有限公司 It is a kind of to hang the stretching-machine for hanging spring

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9400192D0 (en) * 1994-01-07 1994-03-02 Lee Po C A clamp and conveying device for a board-shaped working piece in electro-plating process
DE202004006808U1 (en) * 2004-04-28 2004-07-29 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Internal tensioner for tensioning a helical compression spring
CN201729899U (en) * 2010-04-12 2011-02-02 上海新阳半导体材料股份有限公司 Lead frame electroplating anti-adhesion device
RU2447963C1 (en) * 2010-10-06 2012-04-20 Юрий Михайлович Тебенко Device for stretching springs
CN202716051U (en) * 2012-08-07 2013-02-06 厦门威尔圣电气实业有限公司 Energy storage spring assembly tool
JP2016044315A (en) * 2014-08-20 2016-04-04 和光工業株式会社 Hanger hook device for metal plating processing
CN205146906U (en) * 2015-11-26 2016-04-13 永康市精美新材料有限公司 Straightening machine
CN205146907U (en) * 2015-11-26 2016-04-13 永康市精美新材料有限公司 Drawing machine
CN106737422A (en) * 2017-02-14 2017-05-31 国网山东省电力公司威海市文登区供电公司 A kind of CT19 mechanisms spring attaching/detaching apparatus and application method
CN207046402U (en) * 2017-06-23 2018-02-27 昆山倚天自动化科技股份有限公司 A kind of full-automatic spring fitting device
CN207495405U (en) * 2017-10-13 2018-06-15 广东欧美亚智能装备有限公司 Automatic reed pipe is blown and stretching device
CN209338675U (en) * 2018-12-27 2019-09-03 无锡丰力弹簧有限公司 It is a kind of to hang the stretching-machine for hanging spring

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