CN112720363B - Torsional spring installation device of safety helmet buckle assembling machine - Google Patents

Abstract

The invention discloses a torsion spring mounting device of a safety helmet buckle assembling machine, which comprises a material moving mechanism, wherein the material moving mechanism comprises a first sliding seat, a clamping jaw driving device and a clamping jaw are mounted on the first sliding seat, a torsion spring clamping groove is formed in the clamping jaw, a material returning ejector rod is further mounted on the first sliding seat, the material returning ejector rod is located between the two clamping jaws, and an ejector rod driving piece for driving the material returning ejector rod to extend into and withdraw from the torsion spring clamping groove is mounted on the first sliding seat. The torsion spring mounting device of the safety helmet buckle assembling machine is simple in structure, clamping jaws do not need to be tightly attached to the upper surface of the face buckle during mounting, and torsion springs can be accurately mounted in torsion spring grooves in the face buckle.

Description

Torsional spring installation device of safety helmet buckle assembling machine

Technical Field

The invention relates to a safety helmet buckle assembling machine, in particular to a torsion spring mounting device of the safety helmet buckle assembling machine.

Background

Chinese patent publication No. CN205409833U discloses a safety helmet, which is connected by two fixing straps to fix the helmet shell to the head. The end parts of the two fixing belts are connected through a safety helmet buckle. The safety helmet belt buckle comprises an insert buckle 1 and an insert buckle seat 2, the insert buckle 1 and the insert buckle seat 2 are respectively connected with the end of one fixing belt, and when the safety helmet belt buckle is worn, the insert buckle 1 is inserted into the insert buckle seat 2 to realize connection between the safety helmet belt buckle and the fixing belt.

As shown in fig. 1 to 4, the insert buckle seat 2 includes a bottom buckle 3 and a surface buckle 4, wherein two sides of the bottom buckle 3 are provided with flanges 5, so that the longitudinal section of the bottom buckle 3 is substantially U-shaped, one side of the surface buckle 4 is provided with a flange 55, and the surface buckle 4 is installed between the two flanges 5 of the bottom buckle 3 through a pin 6. The torsion spring 50 includes a main body portion 49, and both ends of the main body portion 49 are respectively provided with a spring arm 8 and a hook portion 9. A torsion spring groove 51 is formed in one side of the face buckle 4, the torsion spring groove 51 comprises a main body groove 7 and a spring arm groove 10, a main body portion 49 of a torsion spring 50 is installed in the main body groove 7, a spring arm 8 is clamped in the spring arm groove 10, and a clamping hook portion 9 is clamped on a flanging 5 at the large end of the bottom buckle 3 during assembly, so that the face buckle 4 and the bottom buckle 3 have opposite rotation and clamping trends.

The torsion spring 50 is small in size, the installation gap between the torsion spring groove 51 and the torsion spring 50 is small, and when the torsion spring 50 is installed by using an assembling machine, due to the fact that the flange 55 is arranged on one side of the surface fastener 4, after the torsion spring 50 is clamped by the pneumatic clamping jaw 16, the lower end of the clamping jaw 16 cannot be tightly attached to the side surface of the surface fastener 4 to be loosened, the torsion spring 50 can be loosened only above the flange 55, and the torsion spring 50 falls into the torsion spring groove 51 by means of gravity. In the assembling process, the assembling machine inevitably generates certain vibration, and the torsion spring 50 has a small volume and a light weight, and is easily affected by the vibration, so that the torsion spring 50 cannot be accurately installed in the torsion spring groove 51. Meanwhile, the torsion spring 50 is complex in structure and is easy to swing when falling, and the position accuracy of the torsion spring 50 during installation is also affected.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the torsion spring mounting device of the safety helmet buckle assembling machine, which has a simple structure, a clamping jaw does not need to be tightly attached to the upper surface of a surface buckle during mounting, and the torsion spring can be accurately mounted in a torsion spring groove on the surface buckle.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a torsional spring installation device of safety helmet buckle kludge, is including moving material mechanism, moves material mechanism and installs clamping jaw drive arrangement and clamping jaw on the seat of sliding one including the seat of sliding one, is provided with torsional spring centre gripping groove on the clamping jaw, still installs the material returned ejector pin on the seat of sliding one, and the material returned ejector pin is in between two clamping jaws, installs the drive material returned ejector pin on the seat of sliding one and stretches into, takes out the ejector pin driving piece in torsional spring centre gripping groove.

Through the technical scheme, when the torsion spring is installed in the torsion spring groove, the torsion spring is still clamped by the clamping jaw, and the torsion spring is ejected out gradually through the ejector rod during installation, so that the torsion spring can still be limited by the torsion spring clamping groove during installation, and the position accuracy of the torsion spring is ensured. Because the torsion spring is always clamped by the clamping jaw in the ejection process, when the material returning ejector rod ejects the torsion spring out of the clamping jaw along the axis direction of the torsion spring, the circumferential position of the torsion spring cannot be changed, and therefore accurate positioning of installation of the torsion spring is guaranteed.

Preferably, the first sliding seat is provided with a positioning insertion rod, the positioning insertion rod is inserted in the middle of the material returning ejector rod, and the lower end of the positioning insertion rod extends into the torsion spring clamping groove.

Through above-mentioned technical scheme, the setting of location inserted bar can insert the torsional spring inner circle when pressing from both sides the torsional spring, restricts the torsional spring position. Meanwhile, when the torsion spring is ejected out of the torsion spring clamping groove, the positioning insertion rod can also play a certain limiting role on the torsion spring from the inner ring of the torsion spring, and the accuracy of the position of the torsion spring during installation is ensured.

The positioning insertion rod is inserted in the middle of the material returning ejector rod, so that the ejection of the material returning stop rod to the torsion spring is not influenced while the torsion spring is positioned.

Preferably, an ejector rod support is installed on the ejector rod driving piece, an ejector rod fixing portion is arranged at the lower end of the ejector rod support and located between the two clamping jaws, and the material returning ejector rod is fixed to the ejector rod fixing portion.

Through the technical scheme, the ejection rod support is arranged, so that the material returning ejection rod can be conveniently connected with the ejection rod driving piece, the material returning ejection rod is located between the two clamping jaws, and the torsion spring clamped between the two clamping jaws is ejected.

Preferably, the ejector rod fixing part is provided with an ejector rod slot, the material returning ejector rod is inserted into the ejector rod slot, the side surface of the ejector rod fixing part is provided with a bolt slot, the bolt slot is communicated with the ejector rod slot, the side surface of the material returning ejector rod is provided with a bolt clamping slot, and a bolt is inserted into the bolt slot and clamped into the bolt clamping slot.

Through the technical scheme, the material returning ejector rod can be conveniently installed on the ejector rod fixing part, and the ejector rod can be conveniently detached.

Preferably, install the inserted bar mount on the seat of sliding one, the both sides at clamping jaw drive arrangement are installed respectively to inserted bar mount and ejector pin driving piece, and inserted bar mount lower extreme is provided with the inserted bar fixed part, and the inserted bar fixed part is located ejector pin fixed part top, and the location inserted bar is fixed on the inserted bar fixed part.

Through above-mentioned technical scheme, inserted bar mount and ejector pin support stretch into between two clamping jaws from clamping jaw drive arrangement both sides respectively, can not take place to interfere between inserted bar mount, ejector pin support and the clamping jaw, influence the clamp of clamping jaw and get. The inserted bar fixed part is located ejector pin fixed part top for the inserted bar fixed part can not influence the slip of material returned ejector pin and ejector pin fixed part when realizing the installation to the location inserted bar.

Preferably, the material moving mechanism comprises a sliding frame, a sliding rail II is fixed on the sliding frame, a sliding seat II slides on the sliding rail II, a sliding rail I is arranged on the sliding seat II, and the sliding seat I is in sliding fit with the sliding rail I.

Through the technical scheme, the first sliding rail and the second sliding rail are arranged, so that the first sliding seat can move at any position in a plane, and the torsion spring can be clamped and installed.

Preferably, still including arranging the material seat and keeping off the material seat, arrange the material seat below and install sharp feeder, arrange material seat and keep off the material seat on all seted up row material groove and spring arm spacing groove, it is provided with the trip direction edge that is used for the card to go into in the trip portion to arrange the material seat top, it is provided with and keeps off the material spare to keep off the material seat, it penetrates row material inslot and blocks the torsional spring, keep off and set up the vertical draw-in groove that advances line location to the spring arm on the material spare, but install the jacking seat that longitudinal sliding will keep off the ejecting row material groove of torsional spring at material spare rear in keeping off the material seat.

Through the technical scheme, the spring arm limiting groove can limit the spring arm at the lower end of the torsion spring, and the hook guide edge can limit the hook part at the upper end of the torsion spring, so that the position of the torsion spring in the discharge groove is accurately determined. The straight line feeder can drive the torsional spring and remove along the row silo direction, keeps off and installs in the material seat and keeps off the material spare, can block the torsional spring of arranging in the silo. When the torsional spring moves towards the material blocking part, the spring arm gradually extends into the longitudinal clamping groove, so that the spring arm can still be positioned. The jacking seat can be with the ejection row of discharging groove of the torsional spring in the row of discharging groove one by one for the clamping jaw can carry out accurate centre gripping to the torsional spring. After the spring arm stretches into vertical draw-in groove, when the jacking seat jacking, also can restrict the circumferential position of torsional spring.

Preferably, a guide inserted rod which can be inserted into the inner ring of the torsion spring in a telescopic way is arranged in the jacking seat.

Through above-mentioned technical scheme, the setting of direction inserted bar can be fixed a position the position of torsional spring before the jacking for the position of torsional spring is more accurate. When the jacking seat jacks, the guide inserted rod can extend out along with the jacking seat, so that the position of the torsion spring is further ensured.

Preferably, the jacking seat upper end is inserted and is established in keeping off the material seat, the spacing groove has been seted up on the jacking seat, keep off the material piece or keep off and be provided with spacing portion on the material seat, it is provided with the drive block to keep off the material seat below, the jacking driving piece is installed to the drive block below, the jacking seat lower extreme is inserted and is established in the drive block, the jacking seat lower extreme vertically is provided with the groove of sliding, it is equipped with the transfer line to insert on the drive block, the transfer line is worn to establish at the inslot that slides, the direction inserted bar groove has still been seted up on the drive block, the backset spring is installed to the direction inserted bar inslot, the direction inserted bar is inserted and is established at the direction inserted bar inslot and contradict with the backset spring upper end.

Through above-mentioned technical scheme, can be through using the drive block drive jacking seat rebound, spacing groove and spacing portion mutually support and can restrict the sliding distance of jacking seat. When the jacking seat moves upwards to the highest point, the jacking seat pushes the torsion spring out of the discharging groove. When the jacking seat retracts, the upper end surface of the jacking seat is flush with the bottom surface of the discharge groove, so that the torsion spring can move into the discharge groove. The guide insertion rod is inserted into the guide insertion rod groove and is abutted against the return spring, so that the clamping jaw moves downwards, and when the positioning insertion rod is inserted into the inner ring of the torsion spring, the guide insertion rod can retract into the guide insertion rod groove. The lower end of the jacking seat is provided with a sliding groove, a transmission rod is inserted in the driving block, and the jacking seat is driven to move up and down through the transmission rod. When the driving block is located at the lowest point, the upper end surface of the jacking seat is flush with the bottom surface of the discharge groove, and the upper end of the guide inserted rod is located in the jacking seat. When the driving block moves upwards from the lowest point, the forerunner drives the positioning insertion rod to move upwards, the upper end face of the jacking seat extends out to be inserted into the inner ring of the torsion spring, and then the jacking seat moves upwards again to eject the torsion spring out of the discharge chute. When the driving block moves downwards from the highest point, the jacking seat and the positioning inserted rod move downwards simultaneously until the upper end surface of the jacking seat is flush with the bottom surface of the discharge groove, then the driving block continues to move downwards, and the positioning inserted rod continues to move downwards along with the driving block and retracts into the jacking seat. Through the setting of the groove that slides, transfer line and the spring that moves back for direction inserted bar and jacking seat use a driving piece can realize the function that jacking seat and direction inserted bar stretch out in proper order, make the direction inserted bar penetrate the torsional spring inner circle earlier, and then the jacking seat is ejecting again.

Preferably, the jacking seat at the front end of the material blocking part is also provided with a longitudinal clamping groove.

Through the technical scheme, the spring arms can be placed in the vertical clamping grooves of the jacking seat by the aid of the vertical clamping grooves in the jacking process, so that the circumferential positions of the torsion springs are more accurate in the jacking process, and the torsion springs can be accurately placed in the torsion spring grooves after clamping jaws are clamped.

Compared with the prior art, the invention has the beneficial effects that: when installing the torsional spring in the torsional spring groove, the clamping jaw remains the centre gripping to the torsional spring all the time, makes the torsional spring can remain the state just to the torsional spring groove all the time, and it is ejecting with the torsional spring axial through the material returned ejector pin, and the circumferential position of torsional spring can not change, can guarantee that the spring arm of torsional spring can accurately install the spring arm inslot for even the clamping jaw is not hugged closely the torsional spring groove and also can accurately install the torsional spring in the torsional spring inslot.

Drawings

FIG. 1 is a perspective view of a buckle of a safety helmet;

FIG. 2 is an exploded view of the buckle seat in the buckle of the helmet;

FIG. 3 is a perspective view of a middle buckle of the safety helmet buckle;

FIG. 4 is a perspective view of a torsion spring in the buckle of the helmet;

FIG. 5 is a perspective view of the material moving device in the embodiment;

FIG. 6 is a schematic structural view of a jaw portion in the embodiment;

FIG. 7 is an exploded view of the embodiment at the jaw;

FIG. 8 is a schematic diagram showing the relative positions of the clamping jaws and the discharge seat in the embodiment;

FIG. 9 is a perspective view of an end of the discharge seat in the embodiment;

fig. 10 is a schematic structural view of a material blocking seat in the embodiment;

FIG. 11 is a schematic structural view illustrating the lifting seat ejecting the torsion spring in the embodiment;

fig. 12 is an exploded view of the striker base in the embodiment;

FIG. 13 is a schematic cross-sectional view of the striker seat in the embodiment;

FIG. 14 is a schematic structural diagram of a transmission part of a sliding slot and a driving block in the jacking seat in the embodiment;

FIG. 15 is a schematic structural diagram of the jacking seat moving to the highest point in the embodiment;

FIG. 16 is a schematic structural view illustrating the jacking seat moving to the lowest point in the embodiment;

fig. 17 is a schematic structural diagram of the driving block moving to the lowest point in the embodiment.

Reference numerals are as follows: 1. inserting and buckling; 2. a socket; 3. a bottom buckle; 4. surface fastener; 5. flanging; 6. a pin; 7. a body groove; 8. a spring arm; 9. a hook part; 10. a spring arm slot; 11. a support; 12. a discharging seat; 13. a material moving mechanism; 14. a discharge chute; 15. a material blocking seat; 16. a clamping jaw; 17. a hook guide edge; 18. a spring arm limiting groove; 19. a material blocking part; 20. a longitudinal slot; 21. a jacking seat; 22. a guide insertion rod; 23. a first sliding seat; 24. a jaw drive; 25. a torsion spring clamping groove; 26. a material returning ejector rod; 27. a push rod driving part; 28. a limiting groove; 29. a limiting part; 30. a drive block; 31. a sliding groove; 32. a transmission rod; 33. jacking a driving piece; 34. extending out of the groove; 35. a guide insertion rod groove; 36. a back spring; 37. positioning the inserted rod; 38. a detection hole; 39. detecting a probe; 40. a sliding frame; 41. a second slide rail; 42. a second sliding seat; 43. a first slide rail; 44. a guide sleeve; 45. a pneumatic finger; 46. clamping fingers; 47. an inserted link fixing frame; 48. a mandril bracket; 49. a main body portion; 50. a torsion spring; 51. a torsion spring groove; 52. a linear feeder; 53. a cover plate; 54. a pin hole; 62. and a limiting hole.

Detailed Description

The invention is further described in detail below with reference to the drawings.

The present embodiment is only for explaining the invention, and it is not limited to the invention, and those skilled in the art can make modifications to the embodiment as necessary without inventive contribution after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

As shown in fig. 5 to 7, a torsion spring mounting device of a safety helmet buckle assembly machine includes a material moving mechanism 13, the material moving mechanism 13 includes a sliding frame 40, a sliding rail two 41 is fixed on the sliding frame 40, a sliding seat two 42 is slidably fitted on the sliding rail two 41, a sliding rail one 43 is arranged on the sliding seat two 42, and a sliding seat one 23 is slidably fitted with the sliding rail one 43. The first sliding seat 23 is provided with a clamping jaw driving device 24, the clamping jaw driving device 24 can use a pneumatic finger 45, and the two clamping fingers 46 below the pneumatic finger 45 are respectively provided with a clamping jaw 16. The lower end of the clamping jaw 16 is provided with a torsion spring clamping groove 25. The adjusted torsion spring 50 can be held by the holding jaws 16, and the torsion spring 50 can be moved above the torsion spring groove 51 of the buckle 4. The first slide rail 43 and the second slide rail 41 are arranged perpendicularly or crosswise, so that the first sliding seat 23 can slide freely in a plane.

An ejector rod driving part 27 is fixed on the rear side of the clamping jaw driving device 24, an ejector rod support 48 is installed at the lower end of the ejector rod driving part 27, the ejector rod support 48 is Z-shaped, an ejector rod fixing part 56 is arranged at the lower end of the ejector rod support 48, and the ejector rod fixing part 56 extends into the space between the two clamping jaws 16 from the rear side of the clamping jaw 16. The ejector rod fixing part 56 is provided with the material returning ejector rod 26. The material returning ejector rod 26 is positioned between the torsion spring clamping grooves 25 and can slide up and down under the action of the ejector rod driving piece 27.

When the clamping jaws 16 move above the surface fastener 4 and the clamped torsion spring 50 needs to be installed in the torsion spring groove 51 on the surface fastener 4, the ejector rod driving piece 27 drives the material returning ejector rod 26 to move downwards, the material returning ejector rod 26 is gradually inserted into the torsion spring clamping groove 25 to gradually eject the torsion spring 50 clamped between the two clamping jaws 16, in the process, the torsion spring 50 only receives axial thrust, the torsion spring 50 cannot rotate, the position of the spring arm 8 can be effectively limited in the downward movement process of the torsion spring 50, and the situation that the spring arm 8 is installed in the torsion spring groove 51 in a state of just facing the spring arm groove 10 is ensured. In the ejection process, the torsion spring 50 is stressed only in the axial direction, the torsion spring 50 cannot rotate circumferentially in the process of being mounted in the torsion spring groove 51, the position of the spring arm 8 cannot be changed, and the spring arm 8 of the torsion spring 50 can accurately enter the groove of the spring arm 8.

An insert rod fixing part 61 is arranged at the lower end of the insert rod fixing frame 47, and the insert rod fixing part 61 also extends between the two clamping jaws 16 and is positioned above the ejector rod fixing part 56. The positioning insertion rod 37 is fixed to the insertion rod fixing portion 61. The positioning insertion rod 37 penetrates through the middle of the material returning ejector rod 26 and is used for being inserted into the inner ring of the torsion spring 50 to position and guide the position of the torsion spring 50. The lower end of the positioning insertion rod 37 extends out of the torsion spring clamping groove 25, when the torsion spring 50 is installed in the torsion spring groove 51, the clamping jaw 16 moves above the torsion spring groove 51, the rear clamping jaw 16 moves downwards, so that the lower end of the positioning insertion rod 37 is inserted into the torsion spring groove 51, then the material returning ejector rod 26 ejects the torsion spring 50 clamped in the torsion spring clamping groove 25 out of the torsion spring clamping groove 25 under the action of the ejector rod driving piece 27, and the torsion spring 50 is pushed and installed in the torsion spring groove 51 along the torsion spring clamping groove 25 and the positioning insertion rod 37.

The ejector rod fixing part 56 is provided with an ejector rod slot 57, and the material returning ejector rod 26 is inserted into the ejector rod slot 57, so that the circumferential position of the material returning ejector rod 26 is fixed. The side surface of the ejector rod fixing part 56 is provided with a bolt groove 58, the bolt groove 58 is communicated with the ejector rod slot 57, the side surface of the material returning ejector rod 26 is also provided with a bolt clamping groove 59, the bolt 60 is inserted into the bolt groove 58 from the side surface of the ejector rod fixing part 56, and the bolt 60 is also clamped into the bolt clamping groove 59 to fix the axial position of the material returning ejector rod 26. The material returning ejector rod 26 is fixed in the mode, and is convenient to mount and dismount.

As shown in fig. 8, the torsion spring mounting device further comprises a discharging seat 12 and a material blocking seat 15. The discharging base 12 is internally provided with a discharging groove 14, the rear end of the discharging groove 14 is connected with a vibrating disk outlet for placing the torsion spring 50, and the torsion spring 50 enters the discharging groove 14 one by one under the action of the vibrating disk. A linear feeder 52 is mounted below the discharge chute 14 for driving the torsion spring 50 to move along the discharge chute 14. The bottom of the discharge groove 14 is provided with a spring arm limiting groove 18, and a spring arm 8 at the lower end of the torsion spring 50 is clamped into the spring arm limiting groove 18, so that the lower end of the torsion spring 50 is accurately positioned. A hook guide edge 17 is arranged above one side of the discharge groove 14, the hook guide edge 17 can be arranged on one side of a cover plate 53, and the cover plate 53 is arranged at the upper end of the discharge seat 12. During operation, trip portion 9 of torsional spring 50 upper end stretches out from 14 upper end one sides in arranging the silo, and the trip direction is gone into 17 cards and is gone into in trip portion 9 of torsional spring 50, and the trip direction is spacing along 17 surfaces to trip portion 9 medial surfaces, makes 50 upper end positions of torsional spring and gesture carry out the accuracy restriction for 16 clamp jaws move torsional spring 50 centre gripping to torsion spring groove 51 top back, and torsional spring 50 is just to torsion spring groove 51.

The material blocking seat 15 is installed on the support 11, and the material blocking seat 15 is located at the front end of the discharge groove 14 and used for blocking the torsion springs 50 in the discharge groove 14, so that the torsion springs 50 are arranged behind the material blocking seat 15. The material blocking seat 15 is also internally provided with a material discharging groove 14 and a spring arm limiting groove 18. The discharge groove 14 in the material blocking seat 15 is butted with the discharge groove 14 in the discharge seat 12. The spring arm limiting groove 18 in the material blocking seat 15 is butted with the spring arm limiting groove 18 in the material discharging seat 12. The material blocking member 19 is installed in the material blocking seat 15, and the material blocking member 19 is inserted into and fixed in the material blocking seat 15 from the side surface of the material blocking seat 15. The material blocking part 19 is provided with a longitudinal clamping groove 20 for limiting the spring arm 8. When the main body portion 49 of the torsion spring 50 moves to abut against the material blocking member 19 along the material discharge groove 14, the spring arm 8 of the torsion spring 50 firstly extends into the longitudinal clamping groove 20, so that the position of the spring arm 8 can be limited by the longitudinal clamping groove 20, and then the main body portion 49 of the torsion spring 50 abuts against the material blocking member 19, so that the circumferential position of the torsion spring 50 cannot be changed when the torsion spring 50 moves to the rear side of the material blocking member 19. Install jacking seat 21 in the material blocking seat 15, jacking seat 21 can take place to slide from top to bottom in material blocking seat 15 to the ejecting row of material groove 14 of torsional spring 50 that will be in material blocking 19 rear, make the clamping jaw 16 on moving material mechanism 13 can carry out the centre gripping to the torsional spring 50 of adjusting the gesture, then move and install above the torsional spring groove 51 of face knot 4.

The guide inserting rod 22 is further inserted into the jacking seat 21, and when the guide inserting rod 22 extends out, the upper end of the guide inserting rod 22 can be inserted into the inner ring of the torsion spring 50, so that the position of the main body part 49 of the torsion spring 50 is determined, and the main body part 49 is prevented from being changed in the jacking process. In the ejection process, due to the existence of the longitudinal clamping groove 20 on the material blocking part 19, the position of the spring arm 8 of the torsion spring 50 can be accurately positioned, so that the main body of the torsion spring 50 and the position of the spring arm 8 are ensured not to change, and the posture of the torsion spring 50 can be ensured. When the jacking seat 21 is ejected, the guide inserted bar 22 and the jacking seat 21 move upwards together, so that the situation that the position and the posture of the torsion spring 50 at the upper end of the jacking seat 21 are changed due to inertia or vibration and the like in the jacking process of the torsion spring 50 is avoided. When the torsion spring 50 is lifted, the spring arm 8 of the torsion spring 50 can be engaged in the longitudinal engaging groove 20, so as to ensure the posture of the torsion spring 50. In addition, a longitudinal clamping groove 20 can be formed in the jacking seat 21 on the front side of the material blocking piece 19, so that the spring arm 8 can be always clamped in the longitudinal clamping groove 20 on the jacking seat 21 in the jacking process.

A guide sleeve 44 is further fixed on the support 11, and the lower end of the material blocking seat 15 is installed inside the upper end of the guide sleeve 44. A limiting hole 62 is formed in the side surface of the guide sleeve 44, and a limiting rod is inserted into the material blocking seat 15 from the limiting hole 62 in the outer side of the upper end of the guide sleeve 44 to fix the material blocking seat 15. The upper end of the jacking seat 21 is inserted into the material blocking seat 15, the middle part of the upper end of the jacking seat 21 is provided with a limiting groove 28, and an extending groove 34 is arranged above the limiting groove 28. The material blocking piece 19 is provided with a limiting part 29. The material blocking piece 19 is inserted into the material blocking seat 15 from the side surface of the material blocking seat 15 and is also inserted into the limit groove 28 on the jacking seat 21. The upper end of the material blocking piece 19 is positioned in the extending groove 34, when the jacking seat 21 moves upwards, the upper end of the material blocking piece 19 retracts into the jacking seat 21, and when the jacking seat 21 moves downwards, the upper end of the material blocking piece 19 extends out of the jacking seat 21.

The height of spacing groove 28 is greater than the height of spacing portion 29 for jacking seat 21 can take place to slide from top to bottom for keeping off material 19 and keeping off material seat 15, thereby makes jacking seat 21 can the rebound with torsional spring 50 ejecting row material groove 14, perhaps moves down and contracts back to in keeping off material seat 15, makes jacking seat 21 up end and row material groove 14 bottom surface parallel and level that are in keeping off material 19 rear side. The driving block 30 is arranged below the material blocking seat 15, the upper end of the driving block 30 is positioned in the guide sleeve 44, and the lower end of the jacking seat 21 is inserted into the driving block 30 and can slide up and down relative to the driving block 30. The driving block 30 is arranged in such a way that the relative position between the driving block 30 and the material blocking seat 15 is more accurate in the relative sliding process, and the jacking seat 21 slides up and down more smoothly. The lower end of the jacking seat 21 is provided with a sliding groove 31, and the sliding groove 31 is arranged along the sliding direction of the jacking seat 21. A transmission rod 32 is inserted on the driving block 30, the transmission rod 32 penetrates into the sliding slot 31, and the driving block 30 drives the jacking seat 21 to slide up and down through the transmission rod 32.

When the torsion spring 50 is ejected out by the jacking seat 21, the transmission rod 32 is abutted against the upper end of the sliding groove 31 to drive the jacking seat 21 to move upwards. As shown in fig. 15, at this time, the jacking seat 21 is at the highest point, the lower end of the limiting groove 28 abuts against the limiting portion 29, and since the material blocking member 19 is fixed on the material blocking seat 15 and does not move, the jacking seat 21 is at the highest point and does not move upwards any more. During use, the lifting seat 21 lifts the torsion spring 50 out of the discharge chute 14.

As shown in fig. 16, the jacking seat 21 is at the lowest point. When the torsion spring 50 finishes clamping, the driving block 30 moves downwards, and at the same time, the jacking seat 21 also moves downwards along with the driving block 30 under the action of gravity. When the upper end of the limiting groove 28 abuts against the limiting part 29, the jacking seat 21 does not move downwards any more, and the upper end surface of the jacking seat 21 is flush with the bottom surface of the discharge groove 14. Due to the existence of the sliding slot 31, when the jacking seat 21 moves to the lowest point and cannot move downwards continuously, the driving block 30 can also move downwards continuously. As shown in fig. 17, the driving rod 32 is disengaged from the upper end of the sliding slot 31 and moves downward along the sliding slot 31.

As shown in fig. 13, the driving block 30 is provided with a guide insertion bar groove 35, and the lower end of the guide insertion bar 22 is inserted into the guide insertion bar groove 35. A back position spring 36 is arranged in the guide insertion rod groove 35, and the middle part of the guide insertion rod 22 is propped against the back position spring 36. This arrangement allows the guide plunger 22 to move with the drive block 30, with the guide plunger 22 moving upwardly as the drive block 30 moves upwardly and the guide plunger 22 moving downwardly as the drive block 30 moves downwardly. In the practical use process, after the jacking seat 21 moves to the lowest point, the guide inserted rod 22 can also move downwards along with the driving block 30 and retract into the jacking seat 21, so that the torsion spring 50 can move to the upper end face of the jacking seat 21 at the rear side of the material blocking member 19, and the movement of the torsion spring 50 cannot be hindered due to the existence of the guide inserted rod 22. When the driving block 30 moves upward from the lowest point, the guiding insertion rod 22 firstly moves upward along with the jacking seat 21, extends out of the jacking seat 21, penetrates into the inner ring of the torsion spring 50, and then moves upward together with the jacking seat 21 to eject the torsion spring 50 out of the material discharging groove 14.

When the torsion spring 50 is gripped by the clamping jaw 16, the clamping jaw 16 may move to above the jacking seat 21, and then the jacking seat 21 is ejected upwards to drive the torsion spring 50 to move towards the clamping jaw 16. At this time, the upper end of the guide inserted bar 22 firstly abuts against the positioning inserted bar 37, the positioning inserted bar 37 gradually extends into the inner ring of the torsion spring 50, the guide inserted bar 22 gradually retreats from the inner ring of the torsion spring 50, the torsion spring 50 moves between the two clamping jaws 16 along with the jacking seat 21, and then the torsion spring 50 is clamped by the clamping jaws 16. When the torsion spring 50 is clamped, the jacking seat 21 may be firstly ejected upwards, then the clamping jaw 16 moves above the jacking seat 21 and moves downwards, the positioning insertion rod 37 presses the guide insertion rod 35 back into the jacking seat 21 in the downward movement process, and meanwhile, the clamping jaw 16 moves downwards to enable the clamping jaw 16 to be positioned outside the main body part 49 of the torsion spring 50, and then the torsion spring 50 is clamped.

In the process that the torsion spring 50 moves to the inner side of the clamping jaws 16, the lower end of the positioning insertion rod 37 penetrates into the inner ring of the torsion spring 50 from top to bottom and is abutted against the upper end of the guide insertion rod 22, the guide insertion rod 22 is ejected out of the inner ring of the torsion spring 50 to enable the inner ring to retract into the jacking seat 21, then the clamping jaws 16 clamp the torsion spring 50 from two sides of the main body part 49 of the torsion spring 50, and the torsion spring 50 is clamped between the two clamping jaws 16. The positioning insertion rod 37 can ensure the position accuracy of the torsion spring 50 in the clamping process, and ensure the posture of the torsion spring 50.

As shown in fig. 10 and 11, the material blocking seat 15 is further provided with detection holes 38 at both sides thereof, the detection holes 38 are communicated with the discharge chute 14, and detection probes 39 are installed in the detection holes 38. The detection probes 39 may use light sensors, one detection probe 39 being for emitting light and the other detection probe 39 being for receiving the emitted light. When the torsion spring 50 is blocked behind the material blocking member 19, the main body portion 49 of the torsion spring 50 is just positioned between the two detection probes 39, and the detection probe 39 for receiving light cannot receive light emitted by the other detection probe 39, so that the torsion spring is determined to exist between the two detection probes 39, and the torsion spring moves in place. The detection probe 39 can detect the torsion spring 50, if the detection probe 39 detects the torsion spring 50, the jacking seat 21 is ejected, and if the detection probe 39 does not detect the torsion spring 50, the jacking seat 21 is not ejected.

The length direction of the discharge chute 14 is inclined or parallel to the clamping direction of the clamping jaws 16. As shown in fig. 8, the longitudinal direction of the discharge chute 14 is inclined to the clamping direction of the jaw 16, so that the jaw 16 does not interfere with the hook 9 of the torsion spring 50 when the jaw 16 clamps the torsion spring 50.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims (8)

1. The utility model provides a torsion spring installation device of safety helmet buckle kludge, is including moving material mechanism (13), moves material mechanism (13) and drives device (24) and clamping jaw (16) including sliding seat (23) on sliding seat (23), is provided with torsional spring centre gripping groove (25), characterized by on clamping jaw (16): a material returning ejector rod (26) is further installed on the sliding seat I (23), the material returning ejector rod (26) is located between the two clamping jaws (16), and an ejector rod driving piece (27) for driving the material returning ejector rod (26) to extend into and draw out the torsion spring clamping groove (25) is installed on the sliding seat I (23); the material blocking device comprises a material blocking seat (15), wherein a material blocking part (19) is arranged in the material blocking seat (15), the material blocking part (19) penetrates into a discharge groove (14) to block a torsion spring (50), a longitudinal clamping groove (20) for positioning a spring arm (8) is formed in the material blocking part (19), a jacking seat (21) capable of longitudinally sliding to push the torsion spring (50) behind the material blocking part (19) out of the discharge groove (14) is installed in the material blocking seat (15), and a guide inserting rod (22) capable of being inserted into an inner ring of the torsion spring (50) in a telescopic mode is installed in the jacking seat (21); jacking seat (21) upper end is inserted and is established in keeping off material seat (15), spacing groove (28) have been seted up on jacking seat (21), it is provided with spacing portion (29) on keeping off material piece (19) or keeping off material seat (15), it is provided with drive block (30) to keep off material seat (15) below, jacking driving piece (33) are installed to drive block (30) below, jacking seat (21) lower extreme is inserted and is established in drive block (30), jacking seat (21) lower extreme vertically is provided with sliding groove (31), it is equipped with transfer line (32) to insert on drive block (30), transfer line (32) are worn to establish in sliding groove (31), guide inserted bar (22) groove has still been seted up on drive block (30), guide inserted bar (22) inslot is installed and is moved back spring (36), guide inserted bar (22) are inserted and are established in guide inserted bar (22) inslot and are contradicted with moving back spring (36) upper end.

2. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 1, wherein: a positioning insertion rod (37) is installed on the first sliding seat (23), the positioning insertion rod (37) is inserted in the middle of the material returning ejector rod (26), and the lower end of the positioning insertion rod (37) extends into the torsion spring clamping groove (25).

3. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 1, wherein: an ejector rod support (48) is installed on the ejector rod driving piece (27), an ejector rod fixing portion (56) is arranged at the lower end of the ejector rod support (48), the ejector rod fixing portion (56) is located between the two clamping jaws (16), and the material returning ejector rod (26) is fixed on the ejector rod fixing portion (56).

4. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 1, wherein: the ejection rod fixing part (56) is provided with an ejection rod slot (57), the material returning ejection rod (26) is inserted into the ejection rod slot (57), the side surface of the ejection rod fixing part (56) is provided with a plug pin groove (58), the plug pin groove (58) is communicated with the ejection rod slot (57), the side surface of the material returning ejection rod (26) is provided with a plug pin clamping groove (59), and the plug pin (60) is inserted into the plug pin groove (58) and clamped into the plug pin clamping groove (59).

5. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 4, wherein: install inserted bar mount (47) on seat (23) slides, install respectively in the both sides that the clamping jaw drove device (24) inserted bar mount (47) and ejector pin driving piece (27), and inserted bar mount (47) lower extreme is provided with inserted bar fixed part (61), and inserted bar fixed part (61) are located ejector pin fixed part (56) top, and location inserted bar (37) are fixed on inserted bar fixed part (61).

6. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 3, wherein: the material moving mechanism (13) comprises a sliding frame (40), a sliding rail II (41) is fixed on the sliding frame (40), a sliding seat II (42) is arranged on the sliding rail II (41) in a sliding mode, a sliding rail I (43) is arranged on the sliding seat II (42), and the sliding seat I (23) is in sliding fit with the sliding rail I (43).

7. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 6, wherein: the material discharging device is characterized by further comprising a material discharging seat (12), a linear feeder (52) is installed below the material discharging seat (12), a material discharging groove (14) and a spring arm limiting groove (18) are formed in the material discharging seat (12) and the material blocking seat (15), and a clamping hook guide edge (17) used for being clamped into the clamping hook portion (9) is arranged above the material discharging seat (12).

8. The torsion spring mounting apparatus of a safety helmet buckle assembly machine according to claim 7, wherein: a vertical clamping groove (20) is also arranged on a jacking seat (21) at the front end of the material blocking part.

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