Constant force spring full-automatic oiling and pressing machine

Abstract

The present application relates to the field of constant force spring production, in particular to a full-automatic oiling and pressing machine for constant force spring, comprising a rotating transmission mechanism, two adjacent spring feeding mechanisms, a constant force spring forming and oiling mechanism and a constant force spring discharging mechanism are sequentially arranged along the rotating direction of the rotating transmission mechanism, and a control device is fixedly connected with the rotating transmission mechanism, the rotating transmission mechanism comprises a main body, a rotating disc is rotatably connected with the main body, a fixing seat is arranged on the rotating disc, and a plurality of spring positioning structures are arranged on the fixing seat. The present application effectively solves the problem that the existing constant force spring oiling method is not good for the inner layer constant force spring oiling; in the process of constant force spring forming, the outer edge surface of the inner and outer layer constant force spring is subjected to targeted oiling treatment, the targeted oiling can ensure that the outer edge surface of the inner and outer layer spring coil can be evenly coated with an oil layer, so that the inner and outer layer spring coils can be better rust and corrosion resistant.

Description

Technical Field

[0001] This invention relates to the field of constant force spring production, and more specifically to a fully automatic oiling and pressing machine for constant force springs. Background Technology

[0002] Unlike springs made from coiled wire, constant-force springs are made from elastic metal steel strips. They are a type of tension spring, consisting of a pre-stressed, flat, coiled steel strip. As the strip extends, the existing stress resists the applied force, similar to a typical tension spring, but it maintains a constant rate of extension. A constant torque is achieved when the outer end of the spring is connected to another spool and wound in the same or opposite direction to the initial winding. A standard constant-force spring, under full load, has a deflection diameter 1.25 times its length, achieving a constant force extension. Its load capacity is primarily determined by the material's thickness, width, and coil diameter.

[0003] In the production process of existing constant force springs, oiling is generally applied to prevent corrosion and reduce friction between adjacent spring sheets. However, the current oiling method typically involves immersing the constant force spring in anti-corrosion oil. This method has several drawbacks. Firstly, since constant force springs are multi-layered, the outer edges of the inner spring coils are obscured by the other springs, making oiling difficult. Secondly, this method requires a large amount of anti-corrosion oil, resulting in some residue on the constant force spring and wasting it. Furthermore, during the assembly process, the inherent uncertainty of human tools and personnel leads to uneven assembly of each constant force spring. Additionally, the relatively thin thickness and sharp edges of constant force springs increase the risk of injury to personnel during manual assembly. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of this invention is to provide a fully automatic oiling and pressing machine for constant force springs, which effectively solves the problem of poor oiling of inner constant force springs by the existing oiling methods.

[0005] The technical solution provided by this invention is a fully automatic oiling and pressing machine for constant force springs, including a rotating transmission mechanism. Along the rotation direction of the rotating transmission mechanism, two adjacent spring feeding mechanisms, a constant force spring forming and oiling mechanism, and a constant force spring unloading mechanism are sequentially arranged. The machine also includes a control device fixedly connected to the rotating transmission mechanism. The rotating transmission mechanism includes a main body, a turntable rotatably connected to the main body via a servo motor, and fixed seats mounted on the turntable, each corresponding to one of the spring feeding mechanism, the constant force spring forming and oiling mechanism, and the constant force spring unloading mechanism. The fixed seats are provided with multiple spring positioning structures, each including a positioning post for spring positioning.

[0006] The constant force spring forming and oiling mechanism includes a clamping block corresponding to the positioning post and used for spring clamping, and an oiling mechanism slidably connected to the main body. The oiling mechanism includes two pressing and forming devices located on both sides of the fixed seat, and an oil injection device is fixed between the two pressing and forming devices. The pressing and forming device includes a rotating cylinder, and a rotating plate is fixedly connected to the output shaft of the rotating cylinder. A first fixed post is concentrically fixedly connected to the rotating plate, and a second fixed post is eccentrically fixedly connected to the rotating plate. The first fixed post and the second fixed post are used in conjunction with two springs placed on the same positioning post.

[0007] Preferably, the spring feeding mechanism includes a spiral feeding bin, a spring integration device connected to the spiral feeding bin via a transmission pipe, and a spring feeding device used in conjunction with the spring integration device. The spring integration device includes a concave slide located directly below the spring feeding device and fixedly connected to the main body, a lifting structure disposed between the slide and the transmission pipe, a limiting plate disposed on the side of the slide away from the transmission pipe, and a lever disposed on the outside of the transmission pipe for actuating the spring.

[0008] Preferably, the spring integration device further includes a pressure plate disposed on the side of the slide away from the fixed seat, the pressure plate being slidably connected to the main body via a push cylinder.

[0009] Preferably, the end face of the pressure plate near the slide is an inclined surface that slopes towards the slide.

[0010] Preferably, the lifting structure includes a concave block that has the same shape as the slide rail and is used in conjunction with it. The concave block is slidably connected to the main body via a lifting cylinder. The actuating rod is provided with a retaining plate that inserts into the concave block and the slide rail. The actuating rod is slidably connected to the main body via an actuating cylinder.

[0011] Preferably, the spring feeding device includes a gripper that is slidably connected to the main body via a drive cylinder and corresponds to the fixed seat. The gripper includes a pressing cylinder and two clamping plates that move relative to or away from each other and are disposed on the output shaft of the pressing cylinder.

[0012] Preferably, the spring positioning structure further includes positioning plates located on both sides of the positioning post, the upper surface of the positioning plate being an inclined surface inclined toward the positioning post, and the lower surface of the clamping plate being an inclined surface that cooperates with the upper surface of the positioning plate.

[0013] Preferably, the positioning post is a tapered post that is narrower at the top and wider at the bottom.

[0014] Preferably, the clamping block has a through hole for accommodating the positioning pin.

[0015] Preferably, the constant force spring feeding mechanism includes a guide plate fixedly connected to the main body and inclined downward, and a right-angled trapezoidal block disposed below the fixed seat and slidably connected to the main body. The upper surface of the right-angled trapezoidal block is an inclined surface inclined towards the guide plate, and the right-angled trapezoidal inclined surface is used in conjunction with the constant force spring.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention involves targeted oiling of the outer edges of the inner and outer layers of the constant-force spring during the forming process. This oiling reduces operational steps and ensures even oil coverage on both outer and inner spring coils, providing better rust and corrosion protection. Furthermore, the invention automatically forms the constant-force springs, with a consistent forming stroke for each coil, guaranteeing each formed spring has the same prestress. It can also process spring coils of varying thicknesses, creating constant-force springs of different thicknesses. The automated forming and oiling process using mechanical equipment reduces manual intervention, avoiding potential injuries from manual operation and improving the yield rate of formed constant-force springs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the spring feeding mechanism in this invention;

[0020] Figure 3 This is the present invention. Figure 2 Enlarged view of A in the middle;

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention after removing the spring feeding mechanism;

[0022] Figure 5 This is the present invention. Figure 4 Enlarged view of B in the middle;

[0023] Figure 6 This is a three-dimensional structural schematic diagram of the constant force spring forming and oiling mechanism in this invention;

[0024] In the diagram, 1-control device; 2-main body; 3-turntable; 4-fixed base; 5-positioning column; 6-pressing block; 7-oiling equipment; 8-rotating cylinder; 9-rotating plate; 10-first fixed column; 11-second fixed column; 12-spiral feeder; 13-transmission pipe; 14-slide rail; 15-limiting plate; 16-toggle rod; 17-pressure plate; 18-push cylinder; 19-concave block; 20-lifting cylinder; 21-clamping plate; 22-toggle cylinder; 23-drive cylinder; 24-pressing cylinder; 25-clamping plate; 26-positioning plate; 27-through hole; 28-guide plate; 29-right-angled trapezoidal block. Detailed Implementation

[0025] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 6 This invention provides a fully automatic oiling and pressing machine for constant force springs, including a rotating transmission mechanism. Two adjacent spring feeding mechanisms, a constant force spring forming and oiling mechanism, and a constant force spring unloading mechanism are arranged sequentially along the rotation direction of the rotating transmission mechanism. It also includes a control device 1 fixedly connected to the rotating transmission mechanism. In order to make the invention work better, the two spring feeding mechanisms, the constant force spring forming and oiling mechanism, and the constant force spring unloading mechanism are evenly distributed on the outside of the rotating transmission mechanism.

[0027] The rotary transmission mechanism is used to transport the initial spring coil and the formed constant force spring coil. As the rotary transmission mechanism rotates, the first spring feeding mechanism along its rotation direction is placed on the first spring coil on the rotary transmission mechanism.

[0028] As the rotary transmission mechanism continues to rotate, the second spring feeding structure along its rotation direction places the second spring coil on the basis of the first spring coil. As the rotary transmission machine rotates to the constant force spring forming and oiling mechanism, under the action of the constant force spring forming and oiling mechanism, on the one hand, oil is applied to the outer edge surface of the two spring coils, and on the other hand, the two spring coils are straightened and formed into a constant force spring.

[0029] The constant force spring moves to the constant force spring feeding mechanism under the action of the rotation transmission mechanism. Under the action of the constant force spring feeding mechanism, the formed and oiled constant force spring is moved into the finished product box.

[0030] The control device 1 adopts a microcomputer control system, while the main body 2 is equipped with an air pump, an oil pump, a PLC controller, and pipelines connecting the air pump and the cylinder, and the oil pump and the cylinder. The above pipelines and the PLC controller are controlled by the microcomputer control system.

[0031] The rotation transmission mechanism includes a main body 2 and a turntable 3 that is rotatably connected to the main body 2 via a servo motor. The servo motor is started with a setting of rotating 90 degrees each time, so that the turntable 3 rotates 90 degrees each time.

[0032] A fixed seat 4 is set on the turntable 3 and corresponds to the spring feeding mechanism, the constant force spring forming and oiling mechanism and the constant force spring unloading mechanism respectively. The fixed seat 4 is used to place the spring coil and the formed constant force spring. The fixed seat 4 is provided with multiple spring positioning structures. The spring positioning structure includes a positioning post 5 for spring positioning. One end of the spring coil has a hole. The positioning post 5 is inserted into the hole on the spring coil to position the spring coil.

[0033] The positioning post 5 is a tapered post that is narrower at the top and wider at the bottom. The tapered design of the positioning post 5 allows the spring coil to be placed on the positioning post 5 more easily at the narrower upper end, while the wider lower end allows the spring coil to be better fixed on the positioning post 5.

[0034] The spring feeding mechanism includes a spiral feeding bin 12, which is the prior art. The bottom of the spiral feeding bin 12 is a rotating structure, and a spiral feeding channel is provided on the edge. As the lower rotating structure spring coil moves upward along the spiral feeding channel into the transmission pipe 13.

[0035] The spring integration device and the spring feeding device used in conjunction with the spring integration device are connected through the transmission pipe 13 and the spiral feeding bin 12. The transmission pipe 13 is a square tube with an opening at one edge. One end of the spring coil is coiled and the other end has a hole. The end with the hole is a rigid plate. Under the action of gravity at the coiled end of the spring coil, the coiled part of the spring coil is located inside the square tube of the transmission pipe 13, and the plate-shaped part of the spring coil is located at the opening at the edge of the transmission pipe 13.

[0036] The spring integration device includes a concave slide 14 located directly below the spring feeding device and fixedly connected to the main body 2, with the spring coiled portion located inside the slide 14;

[0037] A lifting structure is provided between the slide 14 and the transmission pipe 13 to lift the spring coil to the slide 14. A limiting plate 15 is provided on the side of the slide 14 away from the transmission pipe 13, and a toggle rod 16 is provided on the outside of the transmission pipe 13 for moving the spring. The limiting plate 15 is used to limit the movement of the spring coil by the toggle rod 16.

[0038] The spring integration device also includes a pressure plate 17 disposed on the side of the slide 14 away from the fixed seat 4. The pressure plate 17 is slidably connected to the main body 2 via a push cylinder 18. The push cylinder 18 drives the pressure plate 17 to push and press the spring coil, so that the perforated end of the spring coil always faces the fixed seat 4.

[0039] The end face of the pressure plate 17 near the slide rail 14 is an inclined surface that slopes towards the slide rail 14. Under the action of the inclined surface, the spring coil can be pressed more effectively, thereby better integrating the spring coil.

[0040] The lifting structure includes a concave block 19 that is identical in shape to and cooperates with the slide rail 14. The concave block 19 is slidably connected to the main body 2 via a lifting cylinder 20. The actuating rod 16 is provided with a retaining plate 21 that is inserted into the concave block 19 and the slide rail 14. The actuating rod 16 is slidably connected to the main body 2 via an actuating cylinder 22. The concave block 19 and the slide rail 14 are identical in shape. Under the action of the lifting cylinder 20, the concave block 19 and the slide rail 14 are connected. Under the action of the actuating rod 16, the spring coil is moved from the concave block 19 into the slide rail 14.

[0041] The spring feeding device includes grippers that are slidably connected to the main body 2 via a drive cylinder 23 and correspond to the fixed seat 4. One of the grippers corresponds to the spring coil at the limiting plate 15, and the other gripper corresponds to the spring coil at the concave block 19. The grippers include a pressing cylinder 24 and two opposing or back-to-back clamping plates 25 disposed on the output shaft of the pressing cylinder 24. The relative movement of the clamping plates 25 is used to clamp the spring coil, and the back-to-back movement of the clamping plates 25 is used to release the spring coil.

[0042] The spring positioning structure also includes positioning plates 26 located on both sides of the positioning post 5. The upper end surface of the positioning plate 26 is an inclined surface that is inclined towards the positioning post 5. The lower end surface of the clamping plate 25 is an inclined surface that cooperates with the upper end surface of the positioning plate 26. When the clamping plate 25 clamps the spring coil, the clamping plate 25 corresponds to the positioning plate 26. When the inclined surfaces of the clamping plate 25 and the positioning plate 26 are in contact, the positioning post 5 is inserted into the hole of the spring coil.

[0043] The constant force spring forming and oiling mechanism includes a clamping block 6 corresponding to the positioning post 5 and used for spring clamping. The clamping block 6 moves downward to press the spring coiled into a rigid plate shape.

[0044] The oiling mechanism is slidably connected to the main body 2. The oiling mechanism is slidably connected to the main body 2 via a cylinder. The oiling mechanism includes two pressing and forming devices located on both sides of the fixed base 4. An oil injection device is fixed between the two pressing and forming devices. The output port of the oil injection device is located at the contact part of the two spring coils. Under the action of the control device 1, the oil injection device controls the output of oil droplets, so that the oil droplets are injected into the contact part of the two spring coils.

[0045] The press-forming device includes a rotary cylinder 8, a rotary plate 9 fixedly connected to the output shaft of the rotary cylinder 8, a first fixed post 10 concentrically fixedly connected to the rotary plate 9, and a second fixed post 11 eccentrically fixedly connected to the rotary plate 9. The first fixed post 10 and the second fixed post 11 are respectively used in conjunction with two springs placed on the same positioning post 5. The first fixed post 10 is inserted into the lower spring coil, and the second fixed post 11 is inserted into the upper spring coil. When the spring coil is stretched to its limit, due to the eccentric setting of the second fixed post 11, during the rotation of the rotary plate 9, the upper spring coil and the lower spring coil are wound together, thereby forming a constant force spring.

[0046] The clamping block 6 has a through hole 27 for accommodating the positioning pin 5. When the clamping block 6 moves downward, the positioning pin 5 is inserted into the through hole 27 to press the rigid part of the spring coil, thereby fixing the spring coil.

[0047] The constant force spring feeding mechanism includes a guide plate 28 fixedly connected to the main body 2 and inclined downward, and a right-angled trapezoidal block 29 disposed below the fixed seat 4 and slidably connected to the main body 2. The upper surface of the right-angled trapezoidal block 29 is an inclined surface inclined towards the guide plate 28. The right-angled trapezoidal inclined surface is used in conjunction with the constant force spring. The right-angled trapezoidal block 29 moves upward, thereby pushing the coiled part of the constant force spring, so that the constant force spring moves out from the positioning post 5 to the guide plate 28 for collection.

[0048] When using this invention, the operator places the spring coil into the spiral feeding bin 12. Under the action of the spiral feeding bin 12, the spring coil sequentially enters the transmission pipe 13 and moves into the concave plate. One side of the slide 14 blocks the concave plate, preventing the spring coil from moving further. When the operator activates the invention, the concave plate moves upward and connects with the slide 14 under the action of the lifting cylinder 20. At the same time, the upward-moving concave plate blocks the opening of the transmission pipe 13, preventing the spring coil from moving out of the transmission pipe 13.

[0049] When the concave plate is connected to the slide rail 14, the actuating cylinder 22 drives the actuating rod 16 to move, so that the locking plate 21 on the actuating rod 16 is inserted into the slide rail 14, thereby pushing the spring coil. Under the action of the limiting plate 15, the spring coil moves to the limit position, and the actuating cylinder 22 drives the actuating rod 16 to return to the initial position. At this time, the lifting cylinder 20 drives the concave plate to move upward to the limit position.

[0050] When the lifting cylinder 20 moves the concave plate upward to its limit position, the pressing cylinder 24 moves the gripper downward. The two clamping plates 25 move relative to each other to clamp the spring coil and move upward. Under the action of the driving cylinder 23, the gripper moves the spring coil towards the fixed seat 4. When the gripper is directly above the positioning post 5, the pressing cylinder 24 moves the spring coil, so that the positioning post 5 is inserted into the rigid plate-shaped hole of the spring coil. Under the action of the cone-shaped positioning post 5, the spring coil is positioned and initially fixed. The gripper is released and returns to its initial position.

[0051] Turntable 3 drives the fixed seat 4 containing the spring coil to move to the next spring feeding mechanism. The next spring feeding mechanism repeats the above action to place another spring coil above the first spring coil. Under the action of turntable 3, the fixed seat 4 containing two spring coils on the same positioning column 5 rotates to the constant force spring forming and oiling mechanism.

[0052] When the fixed seat 4 containing the spring coil rotates to the constant force spring forming oiling mechanism, the clamping block 6 moves downward and presses and fixes the spring coil on the fixed seat 4. The rotating cylinders 8 located on both sides of the fixed seat 4 move relative to each other, so that the first fixing post 10 is inserted into the lower spring coil and the second fixing post 11 is inserted into the upper spring coil. At the same time, the oil outlet of the oiling mechanism is located at the contact part of the two springs.

[0053] When the fixed post is inserted into the spring coil, the cylinder is activated to move the pressing and forming device away from the fixed seat 4. During the process of the pressing and forming device moving away, the oiling equipment applies oil to the outer edge of the spring coil.

[0054] When the press forming device moves to the limit position, the spring coil is stretched to the limit position, but the first fixing post 10 and the second fixing post 11 are still inserted into the spring coil. The rotating cylinder 8 drives the first fixing post 10 and the second fixing post 11 to rotate via the rotating plate 9. Since the second fixing post 11 is eccentrically set, the second fixing post 11 drives the spring coil to swing backward, so that the inner edge surface of the upper spring coil is in contact with the outer edge surface of the lower spring coil.

[0055] When the second fixed column 11 rotates to the limit position, the spring coil on the second fixed column 11 unfolds to the limit position. Under the action of the spring coil's own elasticity, the upper spring coil rolls onto the lower spring coil. The cylinder moves in the opposite direction to move the pressing and forming device to the initial position. The fixed column moves in the opposite direction simultaneously to move the first fixed column 10 out of the spring coil. The pressing block 6 releases the pressure on the spring coil.

[0056] When the clamping block 6 releases the pressure on the spring coil, the turntable 3 drives the formed constant force spring to rotate to the constant force spring unloading mechanism. Under the action of the right-angled trapezoidal block 29, the constant force spring moves out from the positioning post 5 and onto the guide plate 28. Under the action of the tilting of the guide plate 28, the constant force spring slides into the mobile phone device. The above steps are repeated to form the remaining spring coils and apply oil.

[0057] This invention involves targeted oiling of the outer edges of the inner and outer layers of the constant-force spring during the forming process. This oiling reduces operational steps and ensures even oil coverage on both outer and inner spring coils, providing better rust and corrosion protection. Furthermore, the invention automatically forms the constant-force springs, with a consistent forming stroke for each coil, guaranteeing each formed spring has the same prestress. It can also process spring coils of varying thicknesses, creating constant-force springs of different thicknesses. The automated forming and oiling process using mechanical equipment reduces manual intervention, avoiding potential injuries from manual operation and improving the yield rate of formed constant-force springs.

Claims

1. A fully automatic oiling and pressing machine for constant force springs, comprising a rotary transmission mechanism, two adjacent spring feeding mechanisms, a constant force spring forming and oiling mechanism, and a constant force spring unloading mechanism arranged sequentially along the rotation direction of the rotary transmission mechanism, and further comprising a control device (1) fixedly connected to the rotary transmission mechanism, characterized in that, The rotating transmission mechanism includes a main body (2), a turntable (3) that is rotatably connected to the main body (2) via a servo motor, and a fixed seat (4) that is set on the turntable (3) and corresponds one-to-one with the spring feeding mechanism, the constant force spring forming and oiling mechanism and the constant force spring unloading mechanism. The fixed seat (4) is provided with multiple spring positioning structures, and the spring positioning structure includes a positioning post (5) for spring positioning. The constant force spring forming and oiling mechanism includes a pressing block (6) corresponding to the positioning column (5) and used for spring pressing, and an oiling mechanism slidably connected to the main body (2). The oiling mechanism includes two pressing and forming devices located on both sides of the fixed seat (4). An oiling device is fixed between the two pressing and forming devices. The pressing and forming device includes a rotating cylinder (8). A rotating plate (9) is fixedly connected to the output shaft of the rotating cylinder (8). A first fixed column (10) is concentrically fixedly connected to the rotating plate (9). A second fixed column (11) is eccentrically fixedly connected to the rotating plate (9). The first fixed column (10) and the second fixed column (11) are used in conjunction with two springs placed on the same positioning column (5).

2. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The spring feeding mechanism includes a spiral feeding bin (12), a spring integration device connected to the spiral feeding bin (12) via a transmission pipe (13), and a spring feeding device used in conjunction with the spring integration device. The spring integration device includes a concave slide (14) located directly below the spring feeding device and fixedly connected to the main body (2), a lifting structure disposed between the slide (14) and the transmission pipe (13), a limiting plate (15) disposed on the side of the slide (14) away from the transmission pipe (13), and a toggle rod (16) disposed outside the transmission pipe (13) for moving the spring.

3. The fully automatic oiling and pressing machine for constant force springs according to claim 2, characterized in that: The spring integration device also includes a pressure plate (17) disposed on the side of the slide (14) away from the fixed seat (4), and the pressure plate (17) is slidably connected to the main body (2) via a push cylinder (18).

4. The fully automatic oiling and pressing machine for constant force springs according to claim 3, characterized in that: The end face of the pressure plate (17) near the slide (14) is an inclined surface that slopes toward the slide (14).

5. The fully automatic oiling and pressing machine for constant force springs according to claim 2, characterized in that: The lifting structure includes a concave block (19) that is the same shape as the slide (14) and is used in conjunction with it. The concave block (19) is slidably connected to the main body (2) via a lifting cylinder (20). The actuating rod (16) is provided with a locking plate (21) that is inserted into the concave block (19) and the slide (14). The actuating rod (16) is slidably connected to the main body (2) via an actuating cylinder (22).

6. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The spring feeding device includes a gripper that is slidably connected to the main body (2) via a drive cylinder (23) and corresponds to the fixed seat (4). The gripper includes a pressing cylinder (24) and two clamping plates (25) that move relative to or away from each other and are arranged on the output shaft of the pressing cylinder (24).

7. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The spring positioning structure also includes positioning plates (26) located on both sides of the positioning post (5). The upper surface of the positioning plate (26) is an inclined surface that is inclined toward the positioning post (5), and the lower surface of the clamping plate (25) is an inclined surface that cooperates with the upper surface of the positioning plate (26).

8. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The positioning post (5) is a tapered post that is narrow at the top and wide at the bottom.

9. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The clamping block (6) has a through hole (27) for accommodating the positioning pin (5).

10. The fully automatic oiling and pressing machine for constant force springs according to claim 1, characterized in that: The constant force spring feeding mechanism includes a guide plate (28) fixedly connected to the main body (2) and inclined downward, and a right-angled trapezoidal block (29) disposed below the fixed seat (4) and slidably connected to the main body (2). The upper surface of the right-angled trapezoidal block (29) is an inclined surface that is inclined toward the guide plate (28). The right-angled trapezoidal inclined surface is used in conjunction with the constant force spring.

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