Automatic heading machine for chain pin shaft

Abstract

An automatic heading machine for a chain pin shaft comprises a heading base and a vibration disc base provided with a vibration disc, the vibration disc is internally provided with a pin shaft, and the pin shaft is installed on a heading device of the heading base in a matched mode in the mode that the pin shaft rolls down in the horizontal state through a pin shaft rail. The heading device comprises a movable heading die device, a fixed heading die device and a pin shaft control device; and the pin shaft control device and the movable heading die device are driven by the same set of driving system. The same driving system is adopted to synchronously drive the pin shaft control device and the movable head upsetting die device, and the continuous and automatic head upsetting function of the pin shaft in the horizontal state is achieved under feeding of the pin shaft rail matched with the vibration disc.

Description

Technical Field

[0001] This invention belongs to the technical field of automated chain manufacturing equipment, specifically relating to an automated upsetting machine for chain pins. Background Technology

[0002] A chain pin is a mechanical part used to connect chains. It is usually made of metal and has a cylindrical shape. The main function of a chain pin is to connect the various links of the chain to achieve the chain's transmission function, playing a crucial connecting role in a chain drive system. The diameters at both ends of the chain pin are usually equal to ensure the chain can be correctly connected to the pin. The length of the pin is usually matched to the width of the chain to ensure the chain is securely fixed to the pin and not easily detached. However, the ends of the chain pin often have burrs, sharp corners, etc., requiring chamfering, also known as upset head.

[0003] A pin upsetting machine is a special type of upsetting machine mainly used for cutting pins. Using specially designed cutting tools, it can precisely cut the length and shape of pins. A pin upsetting machine typically consists of a motor, cutting tools, and a support structure, similar to a regular upsetting machine. However, traditional pin upsetting machines mostly rely on manual, individual control of the pin upsetting process, resulting in low efficiency. Improving the automation level of upsetting machines is a research topic for those skilled in the art. Summary of the Invention

[0004] This invention provides an automated chain pin upsetting machine with a high level of automation, good upsetting quality, and low failure rate.

[0005] An automated chain pin upsetting machine includes an upsetting base and a vibratory feeder base with a vibratory feeder installed. The vibratory feeder contains a pin, which rolls horizontally along a pin track and engages with an upsetting device mounted on the upsetting base. The upsetting device includes a movable upsetting die device, a fixed upsetting die device, and a pin control device. The pin control device and the movable upsetting die device are driven by the same drive system. This automated chain pin upsetting machine uses a vibratory feeder to vibrate the pin, causing it to roll along the pin track into the upsetting device. Because the pin control device and the movable upsetting die device are driven by the same drive system, the synchronous performance of pin gripping, upsetting, and unloading is achieved, improving the quality of the upsetting.

[0006] The pin rolls horizontally along the pin track and engages with the upsetting device mounted on the upsetting head base, enabling the pin to perform upsetting in a horizontal state. Compared to the traditional vertical upsetting, the force on both ends of the pin is more balanced, avoiding the problem of inconsistent diameters at both ends of the pin caused by different upsetting pressure.

[0007] The drive system is a U-shaped transmission system, including a first transverse transmission device, a longitudinal transmission device, and a second transverse transmission device. The first and second transverse transmission devices are connected at their respective ends. The first transverse transmission device includes a motor-driven drive wheel, with one end of the main shaft connected to the drive wheel in the middle. The other end of the main shaft is connected to a first bevel gear. A cam is sleeved on the outer circumference of the main shaft, and the cam is engaged with a movable upsetting die device. The longitudinal transmission device includes a second bevel gear meshing with the first bevel gear. The first and second bevel gears are at a 90-degree angle to each other. One end of the second main shaft is connected to the second bevel gear in the middle, and the other end of the second main shaft is connected to a feeding cam. The outer circumference of the second main shaft is connected to a mounting base through a first bearing. The second transverse transmission device includes a feeding cam engaged with a feeding slider with a feeding roller. The U-shaped transmission system keeps the first and second lateral transmission devices in parallel, while a movable upsetting die is installed between the two lateral transmission devices. This not only saves installation space but also greatly improves the stability and structural robustness of the equipment during high-speed upsetting, avoiding the impact of upsetting on the structural robustness and stability of the equipment.

[0008] The movable upsetting die device includes a roller that cooperates with a cam. The roller is mounted on one side of a slider, and a movable upsetting head seat is connected to the other side of the slider via an upsetting head adjustment mounting seat. A movable upsetting die is installed inside the movable upsetting head seat, and the movable upsetting head die has an arc-shaped upsetting head cutout. The upsetting head adjustment mounting seat is connected to the upsetting head base via a guide rail, facilitating the movement of the upsetting head adjustment mounting seat along the guide rail. The rotation of the cam causes the roller that cooperates with it to move back and forth. To achieve reciprocating motion performance, the slider is connected to a first spring mounting seat mounted on the upsetting head base via a first return spring, which drives the roller to always be in contact with the cam. As the cam rotates, the movable upsetting die device achieves reciprocating motion performance within a specified range.

[0009] The fixed upsetting die device includes a fixed upsetting head seat installed on the upsetting head base, and a fixed upsetting die installed inside the fixed upsetting head seat. The fixed upsetting die, in conjunction with the movable upsetting die device, completes the technical function of upsetting both ends of the pin shaft in one pass, forming both ends.

[0010] The pin control device includes a push rod connected to a feeding slider. The end of the push rod has a groove for engaging the pin. After the pin completes the upsetting process, it engages with a receiving rod, which is fitted with a receiving slider. The push rod grabs the pin rolling down the pin track through the groove. After the pin completes the upsetting process, it falls into the receiving rod and then onto the receiving slider, completing the upsetting operation. The feeding slider is connected to a second spring mounting seat mounted on the upsetting base via a second return spring to achieve the reciprocating motion of the push rod. The reciprocating motion frequency of the push rod is consistent with the reciprocating motion frequency of the movable upsetting die device.

[0011] The main shaft is fitted with isolation bushings on both sides of the cam axis and a main shaft bearing installed in the bearing housing.

[0012] The beneficial effects of the automatic upsetting machine for chain pins provided by the present invention are as follows: the same drive system is used to synchronously drive the pin control device and the movable upsetting mold device, and the pin track is fed by the vibrating plate to realize the function of continuous automatic upsetting of the pin in the horizontal state. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the main structure of the automated chain pin upsetting machine of the present invention; Figure 2 This is a partial side view of the automated upsetting machine for chain pins of the present invention. Figure 3 This is a cross-sectional view of the movable upsetting head mold in this invention. Detailed Implementation Plan

[0014] The following is in conjunction with the appendix Figure 1-3 The specific implementation method further illustrates the technical solution of this patent.

[0015] An automated upsetting machine with chain pins includes an upsetting base 1 and a vibratory plate base 2 on which a vibratory plate 3 is mounted. The vibratory plate 3 houses a pin 18, which rolls horizontally along a pin track 17 to engage with an upsetting device mounted on the upsetting base 1. The upsetting device includes a movable upsetting die device, a fixed upsetting die device, and a pin control device. The pin control device and the movable upsetting die device are driven by the same drive system.

[0016] The preferred drive system is a U-shaped transmission system, comprising a first transverse transmission device, a longitudinal transmission device, and a second transverse transmission device. The longitudinal transmission device connects to the first and second transverse transmission devices at both ends. The first transverse transmission device includes a motor-driven drive wheel 4, with one end of a main shaft 5 connected to the drive wheel 4. The other end of the main shaft 5 is connected to a first bevel gear 10. A cam 6 is sleeved on the outer periphery of the main shaft 5, and the cam 6 engages with a movable upsetting die device. The longitudinal transmission device includes a second bevel gear 30 meshing with the first gear 10. The first and second bevel gears 10 and 30 are at a 90-degree angle to each other. The second bevel gear 30 is connected to one end of a second main shaft 11, and the other end of the second main shaft 11 is connected to a feeding cam 12. The outer periphery of the second main shaft 11 is connected to a mounting base 14 via a first bearing 34. The second transverse transmission device includes a feeding cam 12 engaging with a feeding slider 13 connected to a feeding roller 50. Isolation sleeves 7 and main shaft bearings 8 mounted in bearing seats 54 are sleeved on both axial sides of the main shaft 5 on the cam 6.

[0017] The movable upsetting die device includes a roller 19 that engages with a cam 6. The roller 19 is mounted on one side of a slider 20. The other side of the slider 20 is connected to a movable upsetting head seat 21 via an upsetting head adjustment mounting seat 16. A movable upsetting die 22 is installed inside the movable upsetting head seat 21, and the movable upsetting die 22 has an arc-shaped upsetting head cutout 42. The upsetting head adjustment mounting seat 16 is connected to the upsetting head base 1 via a guide rail 45. The slider 20 is connected to a first spring mounting seat 60 mounted on the upsetting head base 1 via a first return spring 51. This structure ensures that the roller 19 is always in contact with the cam 6, and as the cam 6 rotates, the movable upsetting die device achieves reciprocating motion performance within a specified range.

[0018] The fixed upsetting head mold device includes a fixed upsetting head seat 23 installed on the upsetting head base 1, and a fixed upsetting head mold 28 installed inside the fixed upsetting head seat 23. The shape of the fixed upsetting head mold 28 is consistent with the shape of the movable upsetting head mold 22.

[0019] The pin control device includes a push rod 15 connected to a feeding slider 13. The end of the push rod 15 is provided with a groove for engaging the pin 18. After the pin 18 completes the upsetting, it engages with a receiving rod 25. The receiving rod 25 is equipped with a receiving slider 24. The feeding slider 13 is connected to a second spring mounting seat 52 mounted on the upsetting head base 1 via a second return spring 53 to realize the reciprocating motion performance of the push rod. The reciprocating motion frequency of the push rod is consistent with the reciprocating motion frequency of the movable upsetting head die device.

[0020] The working process of this invention is as follows: the vibrating plate 3 rotates and vibrates to drive the pin to be upset to the pin track 17. Then the pin rolls down to a horizontal state and cooperates with the upset head device installed on the upset head base 1. It is grabbed by the groove at the end of the push rod 15. Then the movable upset head mold device cooperates with the fixed upset head mold device to complete the upset work at both ends of the pin. After completion, it is output through the receiving slider 24 cooperated with the receiving rod 25.

[0021] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A chain pin shaft automatic heading machine, comprising a heading base (1) and a vibration disc base (2) provided with a vibration disc (3), characterized in that: The vibration disc (3) is internally provided with a pin shaft (18), the pin shaft (18) is installed in the upsetting head device of the upsetting head base (1) through the pin shaft track (17) rolling in a horizontal state, the upsetting head device comprises a movable upsetting head die device, a fixed upsetting head die device and a pin shaft control device; the pin shaft control device and the movable upsetting head die device are driven by the same set of driving systems.

2. A chain pin shaft automatic heading machine according to claim 1, characterized in that: The driving system is a U-shaped transmission system, comprising a first transverse transmission device, a longitudinal transmission device and a second transverse transmission device, the longitudinal transmission device is connected with the first transverse transmission device and the second transverse transmission device at the two ends respectively, the first transverse transmission device comprises a motor-driven driving wheel (4), the driving wheel (4) is connected with a main shaft (5) at one end in the middle, the other end of the main shaft (5) is connected with a first bevel gear (10), the outer periphery of the main shaft (5) is sleeved with a cam (6), the cam (6) is connected with the movable upsetting head die device, the longitudinal transmission device comprises a second bevel gear (30) engaged with the first bevel gear (10), the first bevel gear (10) and the second bevel gear (30) are at an angle of 90 degrees with each other, the second bevel gear (30) is connected with a second main shaft (11) at one end in the middle, the other end of the second main shaft (11) is connected with a feeding cam (12), the outer periphery of the second main shaft (11) is connected with a mounting seat (14) through a first bearing (34), the second transverse transmission device comprises a feeding slide block (13) connected with a feeding roller (50) matched with the feeding cam (12).

3. A chain pin shaft automatic heading machine according to claim 1, characterized in that: The movable upsetting head die device comprises a roller (19) matched with the cam (6), the roller (19) is installed on one side of a slide block (20), the other side of the slide block (20) is connected with a movable upsetting head seat (21) through an upsetting head adjusting mounting seat (16), the movable upsetting head seat (21) is internally provided with a movable upsetting head die (22), the movable upsetting head die (22) is internally provided with an arc-shaped upsetting head cutout (42); the upsetting head adjusting mounting seat (16) is connected with the upsetting head base (1) through a guide rail (45).

4. A chain pin shaft automatic heading machine according to claim 1, characterized in that: The fixed upsetting head die device comprises a fixed upsetting head seat (23) installed in the upsetting head base (1), the fixed upsetting head seat (23) is internally provided with a fixed upsetting head die (28).

5. A chain pin shaft automatic heading machine according to claim 1, characterized in that: The pin shaft control device comprises a pushing rod (15) connected with the feeding slide block (13), the pushing rod (15) is provided with a groove matched with the pin shaft (18) at the end, the pin shaft (18) is connected with a receiving rod (25) after completing the upsetting, the receiving rod (25) is provided with a receiving slide block (24).

6. A chain pin shaft automatic heading machine according to claim 3, characterized in that: The slide block (20) is connected and installed on the first spring mounting seat (60) of the upsetting head base (1) through the first reset spring (51).

7. A chain pin shaft automatic heading machine according to claim 4, characterized in that: The feeding slide block (13) is connected and installed on the second spring mounting seat (52) of the upsetting head base (1) through the second reset spring (53).

8. A chain pin shaft automatic heading machine according to claim 2, characterized in that: The main shaft (5) is sleeved with an isolation shaft sleeve (7) at both sides of the axial direction of the cam (6) and a main shaft bearing (8) installed in a bearing seat (54).

Images