Automatic feeding and positioning device for spiral springs

Abstract

The present invention relates to the technical field of automatic conveying of spiral springs, and specifically to an automatic loading and positioning device for spiral springs. The device comprises: a feed trough, the feed trough being used to place spiral springs; a receiving trough, the receiving trough being arranged below the end of the feed trough; a pushing device, the pushing device being used to push the spiral springs in the feed trough toward the receiving trough until the front end of the spiral spring falls into the receiving trough; a positioning portion, the positioning portion comprising a rotating lever and a first drive assembly, when the spiral spring falls into the receiving trough, the first drive assembly is used to drive the rotating lever to rotate, so as to move the outer leg of the spiral spring in the receiving trough to a preset position; a pulling portion, the pulling portion comprising a pulling head and a second drive assembly, the pulling head being provided with a groove portion adapted to the cross-sectional shape of the outer leg. The device can achieve precise positioning of the spiral spring and improve production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automatic conveying of spiral springs, and in particular to an automatic feeding and positioning device for spiral springs. Background Art

[0002] In this application, the spiral spring 9 is as follows Figure 1 As shown, it has the following characteristics: an extension leg 91 extends from the outside of the spring body of the spiral spring 9, a hook is provided at the outer end of the extension leg 91, and the spring body of the spiral spring 9 is provided with a through hole.

[0003] In an automated production line, the volute spring needs to be positioned as a whole so that it can be accurately transferred for automatic processing and assembly. Conventional magazine conveying mechanisms can achieve continuous conveying of volute springs, but after the front end of the volute spring is separated from the magazine conveying mechanism, it is difficult to ensure the positioning of the posture, resulting in the inability to achieve accurate transfer. The conventional solution to the above problem is to use a visual recognition system to identify the special features of the volute spring to determine the posture of the volute spring, and then use a robot to accurately clamp it. The above solution will lead to high complexity of the equipment, a long R&D cycle, and ultimately high manufacturing costs. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides an automatic loading and positioning device for a spiral spring, which can achieve precise positioning of the spiral spring, facilitate the precise transfer and automatic processing or assembly of the spiral spring in the next process, and improve production efficiency.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] An automatic feeding and positioning device for a volute spring, comprising:

[0007] A feed trough, which is used to place the spiral spring; a material receiving trough, which is arranged below the end of the feed trough; a pushing device, which is used to push the spiral spring in the feed trough toward the material receiving trough until the front end of the spiral spring falls into the material receiving trough; a positioning part, which includes a rotating lever and a first drive assembly. When the spiral spring falls into the material receiving trough, the first drive assembly is used to drive the rotating lever to rotate so as to move the extended leg of the spiral spring in the material receiving trough to a preset position; a pulling part, which includes a pulling head and a second drive assembly. The pulling head is provided with a groove portion that is adapted to the cross-sectional shape of the extended leg. When the rotating lever moves the extended leg to the preset position, the second drive assembly is used to drive the pulling head to move until the extended leg enters the groove portion, and then drives the pulling head to move along the extension direction of the extended leg toward the hook portion at the outer end of the extended leg.

[0008] Based on the above structure, the principle of the automatic feeding and positioning device for a volute spring is as follows: the volute spring placed in the feeding trough is fed into the receiving trough by a pushing device. At this time, the position of the extended leg of the volute spring that falls into the receiving trough is not positioned. The first driving component drives the rotating lever to rotate. During the rotation of the rotating lever, the rotating lever contacts the extended leg, thereby rotating the volute spring as a whole. When the extended leg rotates to a preset position, the circumferential positioning of the volute spring is achieved. Then, the second driving component drives the pulling head so that the extended leg enters the groove portion, and then drives the pulling head to move toward the hook portion. During this process, the extended leg slides relatively in the groove portion. When the pulling head slides to fit the hook portion, the pulling head continues to slide, which can pull the volute spring as a whole to move a preset distance. At this time, the relative position of the volute spring entering the receiving trough and the receiving trough and the pulling head is fixed, thereby achieving the overall positioning of the volute spring. When transferring the volute spring in a subsequent process, the second drive assembly can drive the pulling head until the extended leg disengages from the groove. Therefore, the automatic loading and positioning device for volute springs described in this application can achieve precise positioning of the volute spring, facilitating precise transfer and automated processing or assembly of the volute spring in subsequent processes, thereby improving production efficiency. Furthermore, compared to solutions using visual positioning, a purely mechanical positioning method offers the advantage of lower manufacturing costs.

[0009] Furthermore, in the automatic loading and positioning device for scroll springs described in this application, the feed trough cavity is provided with a first positioning surface. When the scroll spring is placed in the feed trough and slides with the pushing device, the extended leg engages with the first positioning surface. As a preferred embodiment of this application, this ensures that the scroll springs are neatly arranged in the feed trough.

[0010] Furthermore, in the automatic feeding and positioning device for spiral springs described in the present application, the width of the receiving trough cavity is less than twice the width of the spiral spring. As a preferred solution of the present application, two spiral springs are prevented from entering the receiving trough at the same time.

[0011] Furthermore, in the automatic feeding and positioning device for a volute spring described in the present application, the depth of the receiving trough is smaller than the radial dimension of the volute spring, so that the upper end of the volute spring entering the receiving trough protrudes from the bottom of the feeding trough cavity. As a preferred embodiment of the present application, after the volute spring enters the receiving trough, its top protrudes from the bottom surface of the feeding trough cavity, thereby limiting the front end of the volute spring in the feeding trough, preventing the volute spring in the feeding trough from moving above the volute spring in the receiving trough, causing the rotating lever to rotate and interfere with the volute spring above.

[0012] Furthermore, in the automatic loading and positioning device for a spiral spring described in this application, the receiving trough cavity is provided with a second positioning surface. When the extension leg rotates to the preset position, the extension leg abuts against the second positioning surface. As a preferred embodiment of this application, the rotating lever presses the extension leg against the second positioning surface, and the second positioning surface serves as a rotational positioning function for the rotating lever.

[0013] Furthermore, in the automatic loading and positioning device for spiral springs described in this application, the first drive assembly includes a second drive cylinder, a rack mounted on the telescopic rod of the second drive cylinder, and a gear adapted for the rack mounted on the rotating lever. As a preferred embodiment of this application, the gear is driven by the second drive cylinder, and the rotating lever rotates.

[0014] Furthermore, in the automatic loading and positioning device for a volute spring described in the present application, the first drive assembly includes a third drive cylinder, the rotating lever is rotatably mounted on the telescopic component of the third drive cylinder, and the third drive cylinder is used to drive the rotating lever to move to the first stroke position or the second stroke position; when the rotating lever moves to the first stroke position, the gear engages with the rack, and the second drive cylinder can drive the rotating lever to rotate until it contacts the extended leg in the receiving trough; when the rotating lever moves to the second stroke position, the gear moves to the outside of the rack, and the rotating lever is entirely outside the receiving trough. As a preferred embodiment of the present application, before the volute spring falls from the feed trough to the receiving trough, the rotating lever is in the second stroke position, and the rotating lever is entirely outside the receiving trough to prevent interference with the falling of the volute spring; after the volute spring falls into the receiving trough, the rotating lever moves to the first stroke position, at which time the rotating lever can be driven to rotate to achieve the movement of the extended leg.

[0015] Furthermore, in the automatic loading and positioning device for a volute spring described in the present application, the rotating lever includes a toggle lever and a connecting rod, the connecting rod is rotatably mounted on the telescopic component of the third drive cylinder, the toggle lever is mounted on the outside of the rotation center of the connecting rod, and the gear is mounted at a position corresponding to the rotation center of the connecting rod; the rotating lever also includes an insertion rod, which is arranged at a position corresponding to the rotation center of the connecting rod; when the rotating lever moves to the first stroke position, the insertion rod enters the inner hole of the volute spring, and when the rotating lever moves to the second stroke position, the insertion rod is located on the outside of the volute spring. As a preferred embodiment of the present application, the toggle lever is used to rotate the outer extension leg, and the insertion rod is used to radially limit the volute spring to prevent the volute spring from moving too far during the rotation of the rotating lever. In addition, the insertion rod can also limit the volute spring in the process of pulling the volute spring when the pulling head moves toward the hook portion, preventing the volute spring as a whole from popping out in the direction of movement of the pulling head. That is, when the volute spring is finally positioned, the extended leg is subjected to the pulling force between the pulling head and the insertion rod. It should be noted that the specific positioning position of the pulling head is set to just pull the volute spring through the hook to produce fit, so as to avoid excessive deformation of the volute spring.

[0016] Furthermore, in the automatic loading and positioning device for a spiral spring described in this application, the pulling head is composed of a pair of chucks, the groove is arranged between the pair of chucks, the second drive assembly includes a fourth drive cylinder, the chuck is connected to the fourth drive cylinder, and the fourth drive cylinder is used to drive the pair of chucks to open and close; the second drive assembly also includes a fifth drive cylinder, the fifth drive cylinder is used to drive the fourth drive cylinder and the pulling head to move as a whole, so as to achieve movement of the pulling head along the extension direction of the extension leg. As a preferred embodiment of the present application, specifically, the fifth drive cylinder can drive the fourth drive cylinder to move to the third, fourth, or fifth preset position. When the fourth driving cylinder moves to the third preset position, the pulling head is on the outside of the extension direction of the extended leg and is in a reset state; when the fourth driving cylinder moves to the fourth preset position, the pulling head moves to the position where the extended leg enters the groove, during which time a pair of chucks are driven to open and close by the fourth driving cylinder to enable the extended leg to enter the groove. It should be noted that when the pair of chucks are opened, the hook can pass between the pair of chucks; when the fourth driving cylinder moves to the fifth preset position, the pulling head slides to the preset positioning position in the extension direction of the extended leg. At this time, the pulling head and the hook are in contact with each other to complete the overall positioning of the spiral spring.

[0017] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0018] This invention provides an automatic loading and positioning device for scroll springs. This device can precisely position scroll springs, facilitating their accurate transfer and automated processing or assembly in subsequent processes, thereby improving production efficiency. Compared to solutions using visual positioning, this purely mechanical positioning method offers the advantage of lower manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the volute spring structure described in this application;

[0020] Figure 2 This is a structural diagram of an automatic loading and positioning device for a spiral spring according to an embodiment of the present application;

[0021] Figure 3 This is a schematic structural diagram of the automatic feeding and positioning device for a spiral spring according to an embodiment of the present application, with the wall panel hidden;

[0022] Figure 4 This is a structural diagram of the corresponding pulling part of the automatic feeding and positioning device for a spiral spring according to an embodiment of the present application;

[0023] In the figure: 1-feeding trough; 11-first positioning surface;

[0024] 2- pushing device; 21- first driving cylinder; 22- pushing rod;

[0025] 3- receiving trough; 31- second positioning surface;

[0026] 4-positioning part; 41-rotating lever; 411-gear; 412-moving lever; 413-connecting rod; 414-insertion rod; 42-first driving assembly; 421-second driving cylinder; 4211-rack; 422-third driving cylinder;

[0027] 5- pulling part; 51- pulling head; 510- slot; 511- clamp; 52- second driving assembly; 521- fourth driving cylinder; 522- fifth driving cylinder; 6- wall panel; 61- punch hole;

[0028] 9-volute spring; 91-extension leg; 92-hook. DETAILED DESCRIPTION

[0029] Combine Figure 1-4 As shown, a spiral spring automatic feeding and positioning device includes:

[0030] The feeding trough 1 is used to place the spiral spring 9; the receiving trough 3 is arranged below the end of the feeding trough 1; the pushing device 2 is used to push the spiral spring 9 in the feeding trough 1 toward the receiving trough 3 until the front end of the spiral spring 9 falls into the receiving trough 3; the positioning part 4, the positioning part 4 includes a rotating lever 41 and a first driving component 42. When the spiral spring 9 falls into the receiving trough 3, the first driving component 42 is used to drive the rotating lever 41 to rotate to move the spiral spring 9 in the receiving trough 3. The extended leg 91 of the spiral spring 9 is rotated to a preset position; the pulling part 5, the pulling part 5 includes a pulling head 51 and a second driving assembly 52, the pulling head 51 is provided with a groove 510 adapted to the cross-sectional shape of the extended leg 91, when the rotating lever 41 moves the extended leg 91 to the preset position, the second driving assembly 52 is used to drive the pulling head 51 to move until the extended leg 91 enters the groove 510, and then drives the pulling head 51 to move along the extension direction of the extended leg 91 toward the hook 92 at the outer end of the extended leg 91.

[0031] Based on the above structure, the principle of the automatic loading and positioning device for a spiral spring is as follows: the spiral spring 9 placed in the feeding trough 1 is sent into the receiving trough 3 through the pushing device 2. At this time, the position of the extended leg 91 of the spiral spring 9 that falls into the receiving trough 3 is not positioned. The rotating lever 41 is driven to rotate by the first driving component 42. During the rotation of the rotating lever 41, the rotating lever 41 contacts the extended leg 91, thereby driving the spiral spring 9 to rotate as a whole. When the extended leg 91 rotates to the preset position, the positioning of the spiral spring 9 in the circumferential direction is achieved. Then, the second drive assembly 52 drives the pulling head 51, so that the extended leg 91 enters the groove 510, and then drives the pulling head 51 to move toward the hook 92. During this process, the extended leg 91 slides relatively in the groove 510. When the pulling head 51 slides to fit with the hook 92, the pulling head 51 continues to slide, and can pull the spiral spring 9 as a whole to move a preset distance. At this time, the relative position of the spiral spring 9 entering the receiving trough 3 and the receiving trough 3 and the pulling head 51 is fixed, thereby achieving the overall positioning of the spiral spring 9. When the spiral spring 9 is transferred in the subsequent process, the second drive assembly 52 can drive the pulling head 51 to move until the extended leg 91 is disengaged from the groove 510. Therefore, the automatic loading and positioning device for spiral springs of the present application can achieve precise positioning of the spiral spring 9, facilitate the precise transfer and automatic processing or assembly of the spiral spring 9 in the next process, and improve production efficiency. Moreover, compared with the solution using visual positioning, the purely mechanical positioning method has the advantage of low manufacturing cost.

[0032] Combine Figure 2As shown, in this embodiment, the feed trough 1 is provided with a first positioning surface 11 in the groove cavity. When the volute spring 9 is placed in the feed trough 1 and slides following the pushing device 2, the extended leg 91 fits with the first positioning surface 11. This ensures that the volute springs 9 are neatly arranged in the feed trough 1. Specifically, the cross-section of the groove cavity of the feed trough 1 is concave, and the side of the volute spring 9 fits with the groove cavity of the feed trough 1. The concave groove cavity is used to limit the two sides of the volute spring 9. In this embodiment, the cross-section of the groove cavity of the feed trough 1 is V-shaped, and the first positioning surface 11 corresponds to one side of the V-groove cavity. Specifically, the pushing device 2 includes a first drive cylinder 21, and a push rod 22 is provided on the telescopic rod of the first drive cylinder 21. The push rod 22 is used to push the volute spring 9 to move. In this embodiment, the first drive cylinder 21 is an electric cylinder.

[0033] In this embodiment, the width of the groove cavity of the material receiving groove 3 is less than twice the width of the spiral spring 9. This prevents two spiral springs 9 from entering the material receiving groove 3 at the same time.

[0034] Combine Figure 3 and 4 As shown, in this embodiment, the depth of the material receiving trough 3 is smaller than the radial dimension of the volute spring 9, so that the upper end of the volute spring 9 entering the material receiving trough 3 protrudes from the bottom of the groove cavity of the material feeding trough 1. After the volute spring 9 enters the material receiving trough 3, its top protrudes from the bottom surface of the groove cavity of the material feeding trough 1, thereby limiting the front end of the volute spring 9 in the material feeding trough 1 and preventing the volute spring 9 in the material feeding trough 1 from moving above the volute spring 9 in the material receiving trough 3, causing the rotating lever 41 to rotate and interfere with the volute spring 9 above.

[0035] Combine Figure 3 and 4 As shown, in this embodiment, the receiving trough 3 is provided with a second positioning surface 31. When the extension leg 91 is rotated to the preset position, the extension leg 91 abuts against the second positioning surface 31. In other words, the rotating lever 41 presses the extension leg 91 against the second positioning surface 31, and the second positioning surface 31 serves to position the rotating lever 41. In this embodiment, the receiving trough 3 is V-shaped, used to limit the movement of the spiral spring 9 to the sides. The second positioning surface 31 is provided at the end of one side of the V-shape and extends horizontally.

[0036] In this embodiment, the first driving assembly 42 includes a second driving cylinder 421, a rack 4211 is installed on the telescopic rod of the second driving cylinder 421, and a gear 411 adapted to the rack is provided on the rotating lever 41; the gear 411 and the rotating lever 41 are driven to rotate by the second driving cylinder 421.

[0037] Combine Figure 2 and 3As shown, in this embodiment, the first driving assembly 42 includes a third driving cylinder 422, and the rotating lever 41 is rotatably installed on the telescopic part of the third driving cylinder 422, and the third driving cylinder 422 is used to drive the rotating lever 41 to move to the first stroke position or the second stroke position; when the rotating lever 41 moves to the first stroke position, the gear 411 engages with the rack 4211, and the second driving cylinder 421 can drive the rotating lever 41 to rotate until it contacts the extended foot 91 in the material receiving trough 3; when the rotating lever 41 moves to the second stroke position, the gear 411 moves to the outside of the rack 4211, and the rotating lever 41 as a whole is on the outside of the material receiving trough 3. Before the volute spring 9 falls from the feed trough 1 to the receiving trough 3, the rotating lever 41 is in the second stroke position, and the rotating lever 41 is entirely on the outside of the receiving trough 3 to prevent interference with the falling of the volute spring 9; after the volute spring 9 falls into the receiving trough 3, the rotating lever 41 moves to the first stroke position, at which time the rotating lever 41 can be driven to rotate to achieve the movement of the extended leg 91.

[0038] Combine Figure 2 As shown, in this embodiment, the rotation lever 41 includes a toggle rod 412 and a connecting rod 413. The connecting rod 413 is rotatably mounted on the telescopic component of the third drive cylinder 422. The toggle rod 412 is mounted outside the rotation center of the connecting rod 413, and the gear 411 is mounted at a position corresponding to the rotation center of the connecting rod 413. The rotation lever 41 also includes an insertion rod 414, which is arranged at a position corresponding to the rotation center of the connecting rod 413. When the rotation lever 41 moves to the first stroke position, the insertion rod 414 enters the inner hole of the spiral spring 9. When the rotation lever 41 moves to the second stroke position, the insertion rod 414 is located outside the spiral spring 9. The toggle rod 412 is used to toggle the extended leg 91 for rotation, and the insertion rod 414 is used to radially limit the spiral spring 9 to prevent the spiral spring 9 from moving too far during the rotation of the rotation lever 41. In addition, the insertion rod 414 can also limit the spiral spring 9 in the process of pulling the spiral spring 9 when the pulling head 51 moves toward the hook portion 92, preventing the spiral spring 9 from popping out as a whole in the direction of movement of the pulling head 51. That is, when the spiral spring 9 is finally positioned, the extension leg 91 is subjected to the pulling force between the pulling head 51 and the insertion rod 414. It should be noted that the specific positioning position of the pulling head 51 is just set to pull the spiral spring 9 through the hook portion 92 to fit with the insertion rod 414, avoiding excessive deformation of the spiral spring 9. In this embodiment, a wall panel 6 is also included, which is arranged on the side of the material receiving trough 3 away from the material delivery trough 1. The wall panel 6 is provided with a through hole 61 adapted to the insertion rod 414, and the insertion rod 414 is inserted into the through hole 61. The side of the wall panel 6 close to the material receiving trough 3 is the outer side surface of the material receiving trough 3.

[0039] Combine Figure 4 As shown, in this embodiment, the pulling head 51 is composed of a pair of clamps 511, the groove portion 510 is provided between the pair of clamps 511, the second driving assembly 52 includes a fourth driving cylinder 521, the clamps 511 are connected to the fourth driving cylinder 521, the fourth driving cylinder 521 is used to drive the pair of clamps 511 to open and close; the second driving assembly 52 also includes a fifth driving cylinder 522, the fifth driving cylinder 522 is used to drive the fourth driving cylinder 521 and the pulling head 51 to move as a whole, so as to realize the pulling head 51 along the extension direction of the extension leg 91 ( Figure 4 (parallel to the X direction). Specifically, the fifth drive cylinder 522 can drive the fourth drive cylinder 521 to move to the third, fourth or fifth preset position. When the fourth drive cylinder 521 moves to the third preset position, the pulling head 51 is outside the extension direction of the extension leg 91 and is in a reset state; when the fourth drive cylinder 521 moves to the fourth preset position, the pulling head 51 moves to the position where the extension leg 91 enters the groove 510, during which the fourth drive cylinder 521 drives a pair of chucks 511 to open and close, so that the extension leg 91 enters the groove 510. It should be noted that, in this embodiment, the closing direction of the pair of chucks 511 is the same as that of the fifth drive cylinder 522. Figure 4 The hook 92 is parallel to the Z direction in FIG. When the pair of clamps 511 are opened, the hook portion 92 can pass between the pair of clamps 511. When the fourth drive cylinder 521 moves to the fifth preset position, the pulling head 51 slides in the direction of the extension leg 91 to a preset positioning position. At this time, the pulling head 51 and the hook portion 92 are in contact, completing the overall positioning of the spiral spring 9. In this embodiment, the fourth drive cylinder 521 and the clamp 511 are pneumatic clamps.

[0040] Of course, the pulling head 51 can also be an integral part, and the groove portion 510 is a U-shaped opening groove. The pulling head 51 is arranged on the side of the extension leg 91 as a whole, and the pulling head 51 is driven by the driving cylinder to move toward the extension leg 91 ( Figure 4 The extension leg 91 moves in the opposite direction of the Y direction) so that the extension leg 91 enters the groove 510, and then another driving cylinder drives the pulling head 51 as a whole along the extension direction of the extension leg 91 ( Figure 4 The same effect can be achieved by moving the cursor in the X direction.

[0041] The technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. An automatic feeding and positioning device for a spiral spring, characterized in that: include: A feed trough (1), wherein the feed trough (1) is used to place a volute spring (9); A material receiving trough (3), the material receiving trough (3) being arranged below the end of the material delivery trough (1); A pushing device (2), the pushing device (2) is used to push the volute spring (9) in the feeding trough (1) toward the receiving trough (3) until the front end of the volute spring (9) falls into the receiving trough (3); A positioning portion (4), the positioning portion (4) comprising a rotating lever (41) and a first driving assembly (42), wherein when the volute spring (9) falls into the material receiving trough (3), the first driving assembly (42) is used to drive the rotating lever (41) to rotate, so as to move the outer extension leg (91) of the volute spring (9) in the material receiving trough (3) to a preset position; A pulling portion (5), the pulling portion (5) comprising a pulling head (51) and a second driving assembly (52), the pulling head (51) being provided with a groove (510) adapted to the cross-sectional shape of the extension leg (91), and when the rotating lever (41) moves the extension leg (91) to the preset position, the second driving assembly (52) is used to drive the pulling head (51) to move until the extension leg (91) enters the groove (510), and then drives the pulling head (51) to move toward the hook (92) at the outer end of the extension leg (91); The feeding trough (1) is provided with a first positioning surface (11) in the trough cavity. When the volute spring (9) is placed in the feeding trough (1) and slides along with the pushing device (2), the extension leg (91) is in contact with the first positioning surface (11). The depth of the material receiving trough (3) is smaller than the radial dimension of the volute spring (9), so that the upper end of the volute spring (9) entering the material receiving trough (3) protrudes from the bottom of the groove cavity of the material delivery trough (1).

2. The automatic feeding and positioning device for a spiral spring according to claim 1, characterized in that: The width of the groove cavity of the material receiving groove (3) is less than twice the width of the spiral spring (9).

3. The automatic feeding and positioning device for a spiral spring according to claim 1, characterized in that: The groove cavity of the receiving groove (3) is provided with a second positioning surface (31), and when the extension leg (91) rotates to the preset position, the extension leg (91) fits into the second positioning surface (31).

4. The automatic feeding and positioning device for a spiral spring according to claim 1, characterized in that: The first drive assembly (42) comprises a second drive cylinder (421), a rack (4211) is mounted on the telescopic rod of the second drive cylinder (421), and a gear (411) adapted to the rack is provided on the rotating lever (41).

5. The automatic feeding and positioning device for a spiral spring according to claim 4, characterized in that: The first driving assembly (42) includes a third driving cylinder (422), the rotating lever (41) is rotatably mounted on a telescopic component of the third driving cylinder (422), and the third driving cylinder (422) is used to drive the rotating lever (41) to move to a first stroke position or a second stroke position; When the rotating lever (41) moves to the first stroke position, the gear (411) engages with the rack (4211), and the second driving cylinder (421) can drive the rotating lever (41) to rotate until it contacts the extended leg (91) in the receiving trough (3); When the rotating lever (41) moves to the second stroke position, the gear (411) moves to the outside of the rack (4211), and the rotating lever (41) is entirely outside the material receiving trough (3).

6. The automatic feeding and positioning device for a spiral spring according to claim 5, characterized in that: The rotating lever (41) includes a toggle lever (412) and a connecting rod (413), wherein the connecting rod (413) is rotatably mounted on the telescopic component of the third driving cylinder (422), the toggle lever (412) is mounted outside the rotation center of the connecting rod (413), and the gear (411) is mounted at a position corresponding to the rotation center of the connecting rod (413); The rotating lever (41) further includes an inserting rod (414), and the inserting rod (414) is arranged at a position corresponding to the rotation center of the connecting rod (413); When the rotating lever (41) moves to a first stroke position, the insertion rod (414) enters the inner hole of the volute spring (9); when the rotating lever (41) moves to a second stroke position, the insertion rod (414) is located outside the volute spring (9).

7. The automatic feeding and positioning device for a spiral spring according to claim 1, characterized in that: The pulling head (51) is composed of a pair of clamps (511), the groove portion (510) is arranged between the pair of clamps (511), the second driving assembly (52) includes a fourth driving cylinder (521), the clamps (511) are connected to the fourth driving cylinder (521), and the fourth driving cylinder (521) is used to drive the pair of clamps (511) to open and close; The second drive assembly (52) further includes a fifth drive cylinder (522), which is used to drive the fourth drive cylinder (521) and the pulling head (51) to move as a whole, so as to enable the pulling head (51) to move along the extension direction of the extension leg (91).

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