CN211680794U

CN211680794U - Automatic assembling machine for refrigerator door switch and automatic torsion spring feeding mechanism thereof

Info

Publication number: CN211680794U
Application number: CN202020135604.8U
Authority: CN
Inventors: 林昌西; 胡金平
Original assignee: Zhejiang Changdecheng Electric Appliance Co ltd
Current assignee: Zhejiang Changdecheng Electric Appliance Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-16
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a refrigerator door switch automatic assembly machine and torsional spring automatic feeding mechanism thereof relates to refrigerator door switch manufacturing technical field, and it includes the mounting panel and is used for the automatic torsional spring autoloader who carries the torsional spring of torsional spring autoloader exit install respectively on the mounting panel be used for carrying out the transportation subassembly of transporting, be used for transporting the ejecting liftout subassembly of torsional spring on the subassembly, be used for carrying out the location centre gripping subassembly of centre gripping, be used for carrying out the material loading centre gripping subassembly that the material loading was held to the torsional spring on the location centre gripping subassembly and be used for carrying out horizontal and vertical reciprocating motion's displacement subassembly to the material loading centre gripping subassembly. The utility model discloses have the production machining efficiency who improves refrigerator door switch, reduce labour cost's effect.

Description

Automatic assembling machine for refrigerator door switch and automatic torsion spring feeding mechanism thereof

Technical Field

The utility model belongs to the technical field of refrigerator door switch manufacturing technology and specifically relates to a refrigerator door switch automatic assembly machine and torsional spring automatic feeding mechanism thereof is related to.

Background

A refrigerator door light switch is a common switch, installed inside a refrigerator, and controls an indoor light inside the refrigerator by sensing opening/closing of a door. For example, if a door of a refrigerator is closed, an in-box lamp is turned off; if the door of the refrigerator is opened, the in-box lamp is automatically turned on to provide certain illumination to the inside of the refrigerator.

For example, chinese patent No. CN201655605U, publication No. 11/24/2010, discloses a refrigerator door switch, including: the base is provided with a button at the upper end of the base, a mounting hole is formed in a cavity of the base, a torsion spring is arranged in the mounting hole, a torsion spring arm on the torsion spring abuts against the lower end of the button, a fixed terminal is arranged on one side of the bottom in the cavity of the base, a stationary contact is arranged on the fixed terminal, a movable spring piece is arranged on the other side of the bottom in the cavity of the base, a movable contact matched with the stationary contact is arranged on the movable spring piece, one end of the movable spring piece, which leads out of the base, is a terminal, the other end of the movable spring piece is matched with one end of a positioning pin arranged in the cavity of the base, an arc-shaped abdicating groove and a contact boss are arranged at one end, matched with the movable spring piece, of the positioning pin, the other end of.

The processing production manufacturing of traditional refrigerator door switch all installs in the base torsional spring etc. through the manual work, and the production machining efficiency of very big reduction refrigerator door switch just increases labour cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a torsional spring automatic feeding mechanism, have the production machining efficiency who improves refrigerator door switch, reduce labour cost's effect.

The utility model discloses an aim at can realize through following technical scheme:

the utility model provides a torsional spring automatic feeding mechanism, includes the mounting bracket and is used for the automatic torsional spring autoloader who carries the torsional spring install respectively on the mounting bracket and be used for carrying out the transportation subassembly of transporting the torsional spring in torsional spring autoloader exit, be used for transporting the ejecting liftout subassembly of torsional spring on the subassembly, be used for carrying out the location centre gripping subassembly of centre gripping to the ejecting torsional spring of liftout subassembly, be used for carrying out the material loading centre gripping subassembly that the material loading centre gripping was held to the torsional spring on the location centre gripping subassembly and be used for carrying out horizontal and vertical reciprocating motion's displacement subassembly to the material loading centre gripping subassembly.

By adopting the technical scheme, firstly, the torsion spring is placed in the automatic torsion spring feeding machine, and the automatic orderly conveying process of the torsion spring is realized; when the torsion spring is conveyed to the transferring assembly, the torsion spring is transferred to the material ejecting assembly through the transferring assembly; then, ejecting the torsion spring on the transferring assembly through the ejection assembly, and completing the process of ejecting the torsion spring on the transferring assembly; then, the positioning and clamping assembly clamps one end of the torsion spring to complete the process of positioning and clamping the torsion spring ejected by the ejection assembly; finally, the displacement assembly drives the feeding clamping assembly to displace in the horizontal direction and the vertical direction, and the feeding clamping assembly clamps or discharges the other end of the torsion spring, so that the torsion spring is automatically fed; through torsional spring autoloader, transport subassembly, liftout subassembly, location centre gripping subassembly, displacement subassembly and material loading centre gripping subassembly, realize having the production machining efficiency who improves the refrigerator door switch to the corresponding automatic material loading operation process of torsional spring, reduce labour cost's effect.

The present invention may be further configured in a preferred embodiment as: torsional spring autoloader includes the vibration dish and installs in the conveying pipeline of vibration dish discharge gate department set up the defeated material mouth that is used for carrying the torsional spring on the conveying pipeline, transport the subassembly through reciprocating rotation and defeated material mouthful between communicate with each other or the separation.

Through adopting above-mentioned technical scheme, place the torsional spring in torsional spring autoloader's vibration dish, through the interact of vibration dish and conveying pipeline, make the torsional spring be located the automatic orderly process of carrying to transporting subassembly department in the delivery port on the conveying pipeline.

The present invention may be further configured in a preferred embodiment as: the transportation assembly is including rotating the transportation board of arranging on the mounting bracket and being used for driving the transportation board and being in pivoted driving piece on the mounting bracket offer the installing port that is used for the holding torsional spring on the transportation board, the driving piece passes through the drive the transportation board makes it communicate with each other or the separation between installing port and the defeated material mouth.

Through adopting above-mentioned technical scheme, when communicating with each other between installing port and the defeated material mouth, the torsional spring is conveyed to the installing port of transporting the board in transporting the subassembly on, and rethread driving piece drive transports the board and rotates, will transport the separation of material mouth on the one hand, and on the other hand accomplishes the process of transporting the torsional spring on the installing port to liftout subassembly department.

The present invention may be further configured in a preferred embodiment as: the driving piece comprises a driving cylinder arranged on the mounting frame, a rack connected to a piston rod of the driving cylinder and a gear fixedly arranged on the transfer plate, and the rack is arranged on the mounting frame in a directional sliding mode and is in transmission connection with the gear in a meshing mode.

Through adopting above-mentioned technical scheme, drive rack reciprocating motion through driving actuating cylinder for the gear is in to drive and transports the board and be in reciprocal rotation on the mounting bracket, realizes transporting the board on the one hand and will fail the material mouthful separation, restricts the transport to the torsional spring, and on the other hand accomplishes the process of transporting the torsional spring on the installing port to liftout subassembly department.

The present invention may be further configured in a preferred embodiment as: install on the mounting bracket and be used for responding to the torsional spring and be located the inductor on the installing port, the inductor with the driving piece electricity is connected.

By adopting the technical scheme, when the torsion spring is normally conveyed to the mounting opening on the transfer plate, the sensor senses the torsion spring, so that the driving piece normally works; when the torsion spring is not in the mounting opening in the conveying process, the sensor senses and feeds back a signal to the driving cylinder, so that the torsion spring stops working.

The present invention may be further configured in a preferred embodiment as: the ejection assembly comprises an ejection cylinder fixedly mounted on the mounting frame and an ejection rod fixedly connected to a piston rod of the ejection cylinder, an annular groove is formed in the circumferential surface of the free end of the ejection rod, and the diameter of the annular groove is smaller than the inner diameter of the torsion spring.

Through adopting above-mentioned technical scheme, when rotating assembly transported the torsional spring to liftout subassembly department, through liftout cylinder drive liftout pole towards transporting the board direction motion and passing the installing port, cup jointed the intraoral torsional spring of installing on the ring channel of liftout pole free end, the completion will transport the ejecting process of torsional spring on the board.

The present invention may be further configured in a preferred embodiment as: the location centre gripping subassembly includes fixed mounting in location centre gripping cylinder on the mounting bracket, install slide plate and the solid fixed splint of fixed mounting on the mounting bracket on location centre gripping cylinder piston rod, location centre gripping cylinder drive slide plate is towards solid fixed splint orientation reciprocating motion for to the clamp tight or the pay-off of torsional spring one end gu fixed splint has seted up the holding tank towards the ascending terminal surface of ejector beam, when the ejector beam is ejecting the torsional spring on transporting the subassembly, the free end of ejector beam contradict in on the solid fixed splint, the torsional spring is located in the holding tank.

Through adopting above-mentioned technical scheme, the liftout pole in the liftout subassembly is ejecting the torsional spring in the transportation board for the torsional spring is located the holding tank, and the free end of liftout pole is contradicted on solid fixed splint, and location centre gripping cylinder drive slip splint move towards solid fixed splint direction, and the one end of torsional spring is pressed from both sides tightly between solid fixed splint and slip splint, accomplishes the process of fixing a position the centre gripping to the torsional spring in the holding tank.

The present invention may be further configured in a preferred embodiment as: the material loading clamping assembly comprises a double-end cylinder arranged on the displacement assembly, and a first clamping plate and a second clamping plate which are respectively connected to two piston rods of the double-end cylinder, wherein the first clamping plate and the second clamping plate are arranged above the positioning clamping assembly, and the double-end cylinder drives the first clamping plate and the second clamping plate to clamp or discharge the other end of the torsion spring.

Through adopting above-mentioned technical scheme, drive material loading centre gripping subassembly through the displacement subassembly and carry out the displacement of horizontal direction and vertical direction in location centre gripping subassembly top, the motion of first splint of rethread double-end cylinder drive and second splint, the completion is got the other end of torsional spring and is got or the blowing process.

The present invention may be further configured in a preferred embodiment as: the displacement subassembly is including installing horizontal cylinder on the mounting bracket, connecting horizontal slide on horizontal cylinder piston rod, installing perpendicular cylinder on horizontal slide and connecting the perpendicular slide on perpendicular cylinder piston rod, horizontal slide horizontal slip arrange in on the mounting bracket, perpendicular slide vertical slip arrange in on the horizontal slide, material loading clamping unit mount in on the perpendicular slide.

Through adopting above-mentioned technical scheme, arrange on the mounting bracket through horizontal cylinder drive horizontal slide horizontal orientation reciprocating sliding, perpendicular cylinder drive vertical slide vertical orientation reciprocating sliding arranges on horizontal slide, realizes that the displacement subassembly drives the effect that material loading centre gripping subassembly carries out the displacement of horizontal direction and vertical direction above the location centre gripping subassembly.

The above utility model discloses an above-mentioned utility model purpose secondly can realize through following technical scheme:

an automatic assembling machine for a refrigerator door switch comprises a rack and the automatic torsion spring feeding mechanism arranged on the rack.

Through adopting above-mentioned technical scheme, realize the automatic feeding process through torsional spring automatic feeding mechanism to the torsional spring, have the production machining efficiency who improves the refrigerator door switch, reduce labour cost's effect.

To sum up, the utility model discloses a following beneficial technological effect:

1. the automatic feeding operation process corresponding to the torsion spring is realized through the torsion spring automatic feeder, the transfer assembly, the material ejecting assembly, the positioning clamping assembly, the displacement assembly and the feeding clamping assembly, and the effects of improving the production and processing efficiency of a refrigerator door switch and reducing the labor cost are achieved;

2. the driving part drives the transfer plate to rotate, so that the material conveying opening is blocked to limit and convey the torsion spring, and the torsion spring on the mounting opening is transferred to the material ejecting assembly;

3. ejecting pole through in the liftout subassembly is ejecting the torsional spring when transporting the board for the torsional spring is located the holding tank, cup joints the intraoral torsional spring of installation on the ring channel of ejecting pole free end, and the free end of ejecting pole is contradicted on solid fixed splint, and location centre gripping cylinder drive slip splint move towards solid fixed splint direction, realizes the torsional spring effect of locating the centre gripping again after ejecting.

Drawings

FIG. 1 is a schematic structural view of an automatic torsion spring feeding mechanism;

FIG. 2 is a schematic view of the automatic torsion spring feeding mechanism with the vibratory tray removed;

FIG. 3 is a schematic structural diagram of the transfer component and the ejection component in the automatic torsion spring feeding mechanism;

FIG. 4 is a schematic structural view of a positioning and clamping assembly and a displacement assembly in the automatic torsion spring feeding mechanism;

fig. 5 is a schematic structural diagram of a displacement assembly and a feeding clamping assembly in the automatic torsion spring feeding mechanism.

In the figure, 1, a mounting frame; 2. a torsion spring automatic feeder; 21. a vibrating pan; 22. a delivery pipe; 23. a detector; 3. a transfer assembly; 31. a transfer plate; 311. an installation port; 32. a drive member; 33. a driving cylinder; 34. a rack; 35. a gear; 36. an inductor; 4. a material ejecting component; 41. a material ejection cylinder; 42. a lifter bar; 421. an annular groove; 5. positioning the clamping assembly; 51. positioning the clamping cylinder; 52. a sliding clamp plate; 53. fixing the clamping plate; 531. accommodating grooves; 6. a feeding clamping assembly; 61. a double-ended cylinder; 62. a first splint; 63. a second splint; 64. a connecting rod; 641. an arc-shaped clamping groove; 7. a displacement assembly; 71. a horizontal cylinder; 72. a horizontal sliding plate; 73. a vertical cylinder; 74. a vertical slide plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: referring to fig. 1, for the utility model discloses a torsional spring automatic feeding mechanism, including mounting bracket 1, be used for the automatic transport torsional spring of torsional spring autoloader 2 and install respectively on mounting bracket 1 and be used for carrying out the transportation subassembly 3 transported with the torsional spring in the 2 exits of torsional spring autoloader, be used for transporting the ejecting liftout subassembly 4 of torsional spring on the subassembly 3, a location centre gripping subassembly 5 that is used for carrying out the centre gripping to the ejecting torsional spring of liftout subassembly 4, a material loading centre gripping subassembly 6 that is used for carrying out the material loading centre gripping to the torsional spring on the location centre gripping subassembly 5 and is used for carrying out horizontal and vertical reciprocating motion's displacement subassembly 7 to material loading centre gripping subassembly 6.

Referring to fig. 1 and 2, the torsion spring automatic feeder 2 includes a vibration disk 21 and a feed delivery pipe 22 installed at a discharge port of the vibration disk 21; a material conveying opening for conveying the torsion spring is formed in the material conveying pipe 22, a detector 23 for detecting the conveying of the torsion spring in the material conveying opening is mounted on the material conveying pipe 22, and the detector 23 is electrically connected with the vibration disc 21; the working procedure of automatic orderly conveying the torsion springs on the conveying opening is completed through the vibrating disk 21 and the conveying pipe 22.

Referring to fig. 3, the transfer assembly 3 includes a transfer plate 31 rotatably disposed on the mounting frame 1 and a driving member 32 for driving the transfer plate 31 to rotate on the mounting frame 1; the driving member 32 comprises a driving cylinder 33 fixedly mounted on the mounting frame 1, a rack 34 fixedly connected to a piston rod of the driving cylinder 33, and a gear 35 fixedly mounted on the transfer plate 31, wherein the rack 34 is directionally and slidably arranged on the mounting frame 1 and is in meshing transmission connection with the gear 35.

Referring to fig. 2 and 3, a mounting opening 311 for accommodating a torsion spring is formed in the transfer plate 31, the end surface of the transfer plate 31 abuts against one end of the feed delivery pipe 22 far away from the vibration disc 21, the driving cylinder 33 drives the rack 34 through the driving gear 35 to drive the transfer plate 31 to rotate on the mounting frame 1 in a reciprocating manner, the circumferential surface of the transfer plate 31 in the reciprocating manner is perpendicular to the conveying direction of the feed delivery pipe 22, and the mounting opening 311 in the transfer plate 31 is communicated with or separated from the feed delivery opening; that is, when communicating with each other between installing port 311 and the defeated material mouth, the torsional spring is conveyed to on the installing port 311 of transporting board 31, and the rotation of rethread transporting board 31 will be defeated the material mouth separation on the one hand, and on the other hand accomplishes the process of transporting the torsional spring on the installing port 311 to liftout subassembly 4 department.

Referring to fig. 2 and 3, in order to improve the conveying accuracy of the torsion spring, a sensor 36 for sensing whether the torsion spring is located on the mounting opening 311 is mounted on the mounting frame 1, and the sensor 36 is electrically connected with the driving cylinder 33 in the driving member 32; when the torsion spring is not in the mounting hole 311 during the conveying process, the sensor 36 senses and feeds back a signal to the driving cylinder 33, so that the torsion spring stops working.

Referring to fig. 2 and 3, the material ejecting assembly 4 includes an ejecting cylinder 41 fixedly mounted on the mounting frame 1 and an ejecting rod 42 fixedly connected to a piston rod of the ejecting cylinder 41; meanwhile, an annular groove 421 is formed on the circumferential surface of the free end of the ejector rod 42, the diameter of the annular groove 421 is smaller than the inner diameter of the torsion spring, and the driving direction of the ejector cylinder 41 is perpendicular to the rotating circumferential surface of the transfer plate 31; when the mounting opening 311 of the transfer plate 31 and the ejector rod 42 are in the same straight line, the ejector rod 42 is driven by the ejector cylinder 41 to move towards the transfer plate 31 and penetrate through the mounting opening 311, a torsion spring in the mounting opening 311 is sleeved on the annular groove 421 at the free end of the ejector rod 42, and the process of ejecting the torsion spring on the transfer plate 31 is completed.

Referring to fig. 4, the positioning and clamping assembly 5 comprises a positioning and clamping cylinder 51 fixedly mounted on the mounting frame 1, a sliding clamping plate 52 mounted on a piston rod of the positioning and clamping cylinder 51, and a fixing clamping plate 53 fixedly mounted on the mounting frame 1; fixed splint 53 is located the both sides of transporting board 31 respectively with the conveyer pipe, location centre gripping cylinder 51 drive slip splint 52 towards fixed splint 53 direction reciprocating motion, be used for the tight clamp or the pay-off of torsional spring one end, holding tank 531 has been seted up towards the ascending terminal surface of ejector beam 42 at fixed splint 53, when ejector beam 42 pushes up the torsional spring on the installing port 311 of commentaries on classics board, the torsional spring is located holding tank 531, the free end of ejector beam 42 is contradicted on fixed splint 53, location centre gripping cylinder 51 drive slip splint 52 towards fixed splint 53 direction motion, the completion is to the process of fixing a position the centre gripping to the torsional spring in holding tank 531.

Referring to fig. 4, the displacement assembly 7 includes a horizontal cylinder 71 fixedly installed on the mounting frame 1, a horizontal sliding plate 72 connected to a piston rod of the horizontal cylinder 71, a vertical cylinder 73 installed on the horizontal sliding plate 72, and a vertical sliding plate 74 connected to a piston rod of the vertical cylinder 73; the horizontal sliding plate 72 is horizontally arranged on the mounting frame 1 in a directional sliding mode, the vertical sliding plate 74 is vertically arranged on the horizontal sliding plate 72 in a directional sliding mode, the driving direction of the horizontal air cylinder 71 is horizontally arranged with the driving direction of the positioning material clamping air cylinder, and the driving direction of the vertical air cylinder 73 is vertically arranged with the driving direction of the horizontal air cylinder 71.

Referring to fig. 4 and 5, the feeding clamping assembly 6 includes a double-headed cylinder 61 fixedly mounted on the vertical sliding plate 74, and a first clamping plate 62 and a second clamping plate 63 respectively connected to two piston rods of the double-headed cylinder 61; the first clamping plate 62 and the second clamping plate 63 are arranged above the fixed clamping plate 53, the second clamping plate 63 is integrally connected with a connecting rod 64, the free end of the connecting rod 64 is provided with an arc-shaped clamping groove 641, and during clamping, the arc part of the torsion spring is positioned in the arc-shaped clamping groove 641; drive double-end cylinder 61 through displacement subassembly 7 and carry out the displacement of horizontal direction and vertical direction, rethread double-end cylinder 61 drive first splint 62 and the motion of second splint 63 accomplish to press from both sides the other end of torsional spring and get or the blowing process.

The implementation principle of the embodiment is as follows: firstly, placing a torsion spring in a vibration disc 21 of the torsion spring automatic feeder 2, and completing the automatic and orderly conveying process of the torsion spring on a conveying port under the action of the vibration disc 21 and a conveying pipe 22; when the mounting hole 311 is communicated with the material conveying hole, the torsion spring is conveyed to the mounting hole 311 of the conveying plate 31 in the conveying assembly 3, and then the driving air cylinder 33 drives the gear 35 and the rack 34 to transmit, so that the conveying plate 31 rotates, on one hand, the material conveying hole is blocked, and on the other hand, the process of conveying the torsion spring on the mounting hole 311 to the material ejecting assembly 4 is completed; subsequently, when the mounting opening 311 of the transfer plate 31 and the ejector rod 42 in the ejector assembly 4 are positioned on the same straight line, the ejector rod 42 is driven by the ejector cylinder 41 to move towards the transfer plate 31 and penetrate through the mounting opening 311, a torsion spring in the mounting opening 311 is sleeved on an annular groove 421 at the free end of the ejector rod 42, the torsion spring is positioned in the accommodating groove 531, the free end of the ejector rod 42 is abutted against the fixed clamping plate 53, and the process of ejecting the torsion spring on the transfer plate 31 is completed; next, the positioning clamping cylinder 51 in the positioning clamping assembly 5 drives the sliding clamping plate 52 to move towards the fixed clamping plate 53, and one end of the torsion spring is clamped between the fixed clamping plate 53 and the sliding clamping plate 52, so that the process of positioning and clamping the torsion spring in the accommodating groove 531 is completed; finally, the displacement assembly 7 drives the feeding clamping assembly 6 to displace in the horizontal direction and the vertical direction, and the double-head cylinder 61 drives the first clamping plate 62 and the second clamping plate 63 to move, so that the process of clamping or discharging the other end of the torsion spring is completed; through torsional spring autoloader 2, transport subassembly 3, liftout subassembly 4, location centre gripping subassembly 5, displacement subassembly 7 and material loading centre gripping subassembly 6, realize having the production machining efficiency who improves the refrigerator door switch to the corresponding automatic material loading operation process of torsional spring, reduce labour cost's effect.

Example 2: an automatic assembling machine for a refrigerator door switch comprises a rack and an automatic torsion spring feeding mechanism which is arranged on the rack as in embodiment 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a torsional spring automatic feeding mechanism which characterized in that: including mounting bracket (1) and be used for the automatic torsional spring autoloader (2) of carrying the torsional spring install respectively on mounting bracket (1) and be used for transporting transportation subassembly (3) that the torsional spring in torsional spring autoloader (2) exit carries out the transportation, be used for transporting ejecting subassembly (4) of torsional spring on subassembly (3), be used for carrying out location centre gripping subassembly (5) of centre gripping to ejecting subassembly (4) ejecting torsional spring, be used for carrying out material loading centre gripping to the torsional spring on location centre gripping subassembly (5) carry out material loading centre gripping subassembly (6) and be used for carrying out horizontal and vertical reciprocating motion's displacement subassembly (7) to material loading centre gripping subassembly (6).

2. The automatic torsion spring feeding mechanism according to claim 1, wherein: torsional spring autoloader (2) are including vibration dish (21) and install in conveying pipeline (22) of vibration dish (21) discharge gate department offer the defeated material mouth that is used for carrying the torsional spring on conveying pipeline (22), transport subassembly (3) through reciprocating rotation and conveying between the mouth communicate with each other or the separation.

3. The automatic torsion spring feeding mechanism according to claim 2, wherein: transport subassembly (3) including rotate arrange in transport board (31) on mounting bracket (1) and be used for drive transport board (31) to be in pivoted driving piece (32) on mounting bracket (1) offer installing port (311) that are used for the holding torsional spring on transport board (31), driving piece (32) are through the drive transport board (31) makes it communicating with each other or the separation between installing port (311) and the defeated material mouth.

4. The automatic torsion spring feeding mechanism according to claim 3, wherein: the driving piece (32) comprises a driving cylinder (33) installed on the installation frame (1), a rack (34) connected to a piston rod of the driving cylinder (33) and a gear (35) fixedly installed on the transfer plate (31), wherein the rack (34) is directionally and slidably arranged on the installation frame (1) and is in meshed transmission connection with the gear (35).

5. The automatic torsion spring feeding mechanism according to claim 3 or 4, wherein: install on mounting bracket (1) and be used for responding to whether the torsional spring is located inductor (36) on installing port (311), inductor (36) with driving piece (32) electricity is connected.

6. The automatic torsion spring feeding mechanism according to claim 1, wherein: liftout subassembly (4) are including liftout cylinder (41) and ejector beam (42) of fixed connection on liftout cylinder (41) piston rod of fixed mounting on mounting bracket (1) ring channel (421) have been seted up on the periphery of ejector beam (42) free end, just the diameter of ring channel (421) is less than the torsional spring internal diameter.

7. The automatic torsion spring feeding mechanism according to claim 6, wherein: location centre gripping subassembly (5) including fixed mounting in location centre gripping cylinder (51) on mounting bracket (1), install slide clamping plate (52) and fixed mounting (53) on mounting bracket (1) on location centre gripping cylinder (51) piston rod, location centre gripping cylinder (51) drive slide clamping plate (52) are towards fixed clamping plate (53) direction reciprocating motion for to the clamp tight or the pay-off of torsional spring one end fixed clamping plate (53) have seted up holding tank (531) towards the ascending terminal surface of ejector beam (42) side, when ejector beam (42) are pushed up the torsional spring in on transporting subassembly (3), the free end of ejector beam (42) contradict in on fixed clamping plate (53), the torsional spring is located in holding tank (531).

8. The automatic torsion spring feeding mechanism according to claim 7, wherein: material loading clamping component (6) including install double-end cylinder (61) on displacement assembly (7) and connect first splint (62) and second splint (63) on two piston rods of double-end cylinder (61) respectively, first splint (62) and second splint (63) arrange in location clamping component (5) top, double-end cylinder (61) drive first splint (62) and second splint (63) are got or are put the blowing to the other end of torsional spring.

9. The automatic torsion spring feeding mechanism according to claim 1, wherein: displacement subassembly (7) including install horizontal cylinder (71) on mounting bracket (1), connect horizontal slide (72) on horizontal cylinder (71) piston rod, install perpendicular cylinder (73) on horizontal slide (72) and connect perpendicular slide (74) on perpendicular cylinder (73) piston rod, horizontal slide (72) horizontal slip arrange in on mounting bracket (1), perpendicular slide (74) vertical slip arrange in on horizontal slide (72), material loading centre gripping subassembly (6) install in on perpendicular slide (74).

10. The utility model provides a refrigerator door switch automatic assembly machine which characterized in that: the automatic torsion spring feeding mechanism comprises a frame and the automatic torsion spring feeding mechanism which is arranged on the frame and is as claimed in any one of claims 1 to 9.