Discharging stroke synchronous adjusting device for cold header

Abstract

The utility model provides a discharging stroke synchronous adjusting device for a cold header, which solves the problems of complex structure, inconvenience in adjustment and low precision, comprises an upper adjusting shaft and a lower adjusting shaft, and is characterized by further comprising a mounting plate, a connecting rod, a shaft I, a shaft II, an upper chain wheel, a lower chain wheel, a gear I, a gear II, a gear III, a gear IV and a gear V, the mounting plate is vertically mounted on a cold header equipment rack, and the middle sections of the first shaft and the second shaft penetrate through the mounting plate and are connected in a rotating mode. One end of the connecting rod is connected with the front end of the second shaft, and the fifth gear and the fourth gear are fixed to the second shaft and located on the front side and the rear side of the mounting plate respectively. The third gear and the upper chain wheel are fixed to the first shaft and located on the front side and the rear side of the mounting plate respectively, the second gear is rotationally connected to the front side face of the mounting plate through a rotating shaft, the rotating shaft is further provided with a position displayer capable of displaying the rotating angle of the second gear, and the left side and the right side of the third gear are in meshing transmission with the second gear and the fifth gear respectively.

Description

Technical Field

[0001] The utility model relates to the field of cold heading machine equipment, in particular to a cold heading machine discharging mechanism, and specifically to a discharging stroke synchronous adjustment device for a cold heading machine. Background Art

[0002] A cold heading machine is a specialized machine used for mass production of nuts, bolts, and other fasteners. It primarily consists of a base, a frame, a spindle, a cold heading head, and a discharge mechanism. The main machine rotates the spindle on the frame through a motor, and the cold heading head cold-forges the metal material through the spindle.

[0003] As we all know, the discharge stroke adjustment mechanism of the cold heading machine is divided into two parts, the upper and lower parts. The function of the upper mechanism is to adjust the backward position of the discharge rod, and the function of the lower mechanism is to adjust the discharge stroke of the discharge rocker. When the discharge stroke needs to be adjusted, the upper adjustment mechanism needs to be synchronized with the lower adjustment mechanism, which requires a set of synchronous adjustment mechanisms to connect the upper and lower adjustment mechanisms, and adjust the upper adjustment shaft and the lower adjustment shaft at the same time through a set of synchronous adjustment mechanisms to achieve synchronous adjustment. The upper adjustment shaft and the lower adjustment shaft are installed in the discharge mechanism, one on the top and the other on the bottom, and the two are distributed parallel in space and distributed up and down. However, the problems with the original synchronous adjustment mechanism are that it has a complex structure, is inconvenient to install and adjust, and is inconvenient to maintain, and has low display accuracy. Utility Model Content

[0004] The utility model provides a discharging stroke synchronous adjustment device for a cold heading machine, which solves the problems of complex structure, inconvenient adjustment and low precision.

[0005] The utility model is realized through the following technical solutions:

[0006] A discharge stroke synchronization adjustment device for a cold heading machine, comprising an upper adjustment shaft and a lower adjustment shaft, a mounting plate, a connecting rod, a first shaft, a second shaft, an upper sprocket, a lower sprocket, a first gear, a second gear, a third gear, a fourth gear, and a fifth gear;

[0007] The mounting plate is vertically mounted on the cold heading machine equipment frame, and the middle sections of the first and second shafts both pass through the mounting plate and are swivel-connected;

[0008] One end of the connecting rod is connected to the front end of the second shaft, and the fifth gear and the fourth gear are fixed on the second shaft and are respectively located on the front side and the rear side of the mounting plate;

[0009] The gear three and the upper sprocket are fixed on the shaft one and are respectively located on the front and rear sides of the mounting plate. The gear two is rotatably connected to the front side of the mounting plate via a rotating shaft. The rotating shaft is also provided with a position indicator that can display the rotation angle of the gear two. The left and right sides of the gear three are respectively engaged with the gear two and the gear five for transmission;

[0010] The lower sprocket is installed on the lower adjustment shaft, the lower sprocket is connected to the upper sprocket through a chain transmission, the gear one is fixed on the upper adjustment shaft, and the gear four is meshed with the gear one for transmission.

[0011] Furthermore, the front end of the upper adjustment shaft is swivel-connected to the mounting plate.

[0012] Furthermore, it also includes a handwheel mounting seat, which is fixed on the outer protective frame of the cold heading machine. The handwheel mounting seat is provided with an axial hole that is rotatably matched with the connecting rod, and a handwheel is fixed to the front end of the connecting rod.

[0013] Furthermore, the outer side of the handwheel mounting seat is threadedly connected with a butterfly screw, and when the butterfly screw is tightened, the tail end of the butterfly screw can press the connecting rod.

[0014] Furthermore, the connecting rod is connected to the front end of the second shaft through a universal coupling.

[0015] Furthermore, the position display is a digital position display.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0017] 1. Through the design of the mounting plate, connecting rod, shaft one, shaft two, upper sprocket, lower sprocket, gear one, gear two, gear three, gear four and gear five, the transmission ratio can be accurately determined, which is conducive to accurately achieving the transmission of a given transmission ratio. The transmission accuracy of each gear is higher, making the structure of the entire adjustment device more compact. By rotating the connecting rod, the upper adjustment shaft and the lower adjustment shaft can be synchronously adjusted under the transmission of each gear.

[0018] The position display is set to facilitate the operator to observe the position during adjustment;

[0019] 2. The hand wheel can be used to control the rotation of the connecting rod, which is simple and convenient to operate. When the butterfly screw is tightened, the tail end of the butterfly screw can press the connecting rod tightly, so that the connecting rod can be locked. When adjustment is required, the butterfly screw needs to be loosened;

[0020] 3. The position display uses a digital position display with a display accuracy of 0.01mm. The digital display is installed in a position that is convenient for the operator to observe during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the synchronous adjustment device for the discharge stroke of the cold heading machine described in the utility model

[0022] Figure 2 This is the left view of the synchronous adjustment device for the discharge stroke of the cold heading machine described in the utility model

[0023] Figure 3 The utility model is a top view rotation of the cold heading machine discharge stroke synchronous adjustment device

[0024] In the figure: 1. Handwheel, 2. Butterfly screw, 3. Handwheel mounting base, 4. Connecting rod, 5. Universal coupling, 6. Gear 1, 7. Upper adjusting shaft, 8. Chain, 9. Lower sprocket, 10. Lower adjusting shaft, 11. Mounting plate, 12. Position indicator, 13. Gear 2, 14. Gear 3, 15. Shaft 1, 16. Upper sprocket, 17. Gear 4, 18. Shaft 2, 19. Gear 5. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0027] In the prior art, the upper adjustment shaft 7 and the lower adjustment shaft 10 are rotatably mounted in the discharge mechanism of the cold heading machine, and are spatially parallel, one above and one below. In order to be able to synchronously adjust the upper adjustment shaft 7 and the lower adjustment shaft 10, this embodiment discloses a discharge stroke synchronous adjustment device for a cold heading machine. In addition to the upper adjustment shaft 7 and the lower adjustment shaft 10 described above, it also includes a handwheel 1, a handwheel mounting seat 3, a position indicator 12, a mounting plate 11, a connecting rod 4, shaft 15, shaft 2 18, an upper sprocket 16, a lower sprocket 9, gear 1 6, gear 2 13, gear 3 14, gear 4 17, and gear 5 19.

[0028] The mounting plate 11 is a metal steel plate, mounted vertically on the cold heading machine frame. The middle sections of shaft 15 and shaft 2 18 both pass through the mounting plate 11 and are pivotally connected. Shaft 15 and shaft 2 18 are on the same horizontal plane. The handwheel 1 mounting base is fixed to the outer protective frame of the cold heading machine. The handwheel mounting base 3 is machined with an axial hole that pivots with the connecting rod 4. The connecting rod 4 pivots and is assembled on the axial hole of the handwheel mounting base 3. The front end of the connecting rod 4 is fixed with a handwheel. The rear end of the connecting rod 4 is connected to the front end of shaft 2 18 via a universal coupling 5. A butterfly screw 2 is threadedly connected to the outer side of the handwheel mounting base 3. When the butterfly screw 2 is tightened, the tail end of the butterfly screw 2 can compress the connecting rod 4. Gear 5 19 and gear 4 17 are fixed to shaft 2 18 and are located on the front and rear sides of the mounting plate 11, respectively. Gear 3 14 and the upper sprocket 16 are fixed to shaft 15 and are located on the front and rear sides of the mounting plate 11, respectively. Gear 2 13 is rotatably connected to the front side of the mounting plate 11 through a rotating shaft. The position display 12 uses a conventional digital position display 12 with an accuracy of 0.01 mm. The shell base of the position display 12 is fixed on the outer protective frame of the cold heading machine, and the rotating shaft connected to gear 2 13 is fixed on the rotating sleeve of the position display 12. When gear 2 13 drives the rotating shaft to rotate, the rotation distance can be displayed by the position display 12.

[0029] The left and right sides of Gear 3 (14) mesh with Gear 2 (13) and Gear 5 (19), respectively. Lower sprocket 9 is mounted on lower adjustment shaft 10 via a flat key. Lower sprocket 9 is connected to upper sprocket 16 via chain 8. Gear 1 (6) is secured to upper adjustment shaft 7 via a flat key. Gear 4 (17) meshes with Gear 1 (6). The front end of upper adjustment shaft 7 is pivotally connected to mounting plate 11.

[0030] The specific working process of the discharge stroke synchronous adjustment device for cold heading machine described in this embodiment is as follows:

[0031] When adjustment is not required, tighten the butterfly screw 2 to secure the connecting rod 4. When adjustment of the upper and lower adjustment shafts 7 and 10 is required, loosen the butterfly screw 2. Turn the operating handwheel 1 clockwise, which rotates the connecting rod 4, driving Gear 4 17 and Gear 5 19 clockwise. Gear 4 17 drives Gear 1 6 counterclockwise. Gear 1 6 also rotates the upper adjustment shaft 7 counterclockwise, which in turn drives the upper discharge mechanism of the cold heading machine. Gear 5 19 drives Gear 3 14 counterclockwise. Gear 3 14 is mounted on the same shaft as the upper sprocket 16, so the upper sprocket 16 also rotates counterclockwise. The upper sprocket 16 drives the lower sprocket 9 counterclockwise via the roller chain. The lower sprocket 9 then drives the lower adjustment shaft 10 counterclockwise, which in turn drives the lower discharge mechanism of the cold heading machine. This completes the synchronized operation of the upper and lower discharge mechanisms of the cold heading machine. By properly designing the number of teeth on Gear 1 (6) and Gear 3 (14), a given transmission ratio can be achieved. Gear 3 (14) drives Gear 2 (13), which is mounted on the same shaft as the position indicator (12). The position indicator (12) displays the adjustment amount with an accuracy of 0.01 mm per rotation of the position indicator (12).

Claims

1. A synchronous adjustment device for discharge stroke of cold heading machine, comprising an upper adjustment shaft and a lower adjustment shaft, characterized in that: Also included are a mounting plate, a connecting rod, a shaft one, a shaft two, an upper sprocket, a lower sprocket, a gear one, a gear two, a gear three, a gear four, and a gear five; The mounting plate is vertically mounted on the cold heading machine equipment frame, and the middle sections of the first and second shafts both pass through the mounting plate and are swivel-connected; One end of the connecting rod is connected to the front end of the second shaft, and the fifth gear and the fourth gear are fixed on the second shaft and are respectively located on the front side and the rear side of the mounting plate; The gear three and the upper sprocket are fixed on the shaft one and are respectively located on the front and rear sides of the mounting plate. The gear two is rotatably connected to the front side of the mounting plate via a rotating shaft. The rotating shaft is also provided with a position indicator that can display the rotation angle of the gear two. The left and right sides of the gear three are respectively engaged with the gear two and the gear five for transmission; The lower sprocket is installed on the lower adjustment shaft, the lower sprocket is connected to the upper sprocket through a chain transmission, the gear one is fixed on the upper adjustment shaft, and the gear four is meshed with the gear one for transmission.

2. The discharge stroke synchronous adjustment device for cold heading machine according to claim 1, characterized in that: The front end of the upper adjusting shaft is swivel-connected to the mounting plate.

3. The discharge stroke synchronous adjustment device for cold heading machine according to claim 1, characterized in that: It also includes a handwheel mounting seat, which is fixed on the outer protective frame of the cold heading machine. The handwheel mounting seat is provided with an axial hole that is rotatably matched with the connecting rod, and a handwheel is fixed to the front end of the connecting rod.

4. The discharge stroke synchronous adjustment device for a cold heading machine according to claim 3, characterized in that: The outer side of the handwheel mounting seat is threadedly connected with a butterfly screw. When the butterfly screw is tightened, the tail end of the butterfly screw can press the connecting rod.

5. The discharge stroke synchronous adjustment device for cold heading machine according to claim 3, characterized in that: The connecting rod is connected to the front end of the second shaft through a universal joint.

6. The discharge stroke synchronous adjustment device for a cold heading machine according to any one of claims 1 to 5, characterized in that: The position display is a digital position display.

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