Automatic production line for forming special-shaped shaft lever part of constant-speed driving shaft

Abstract

The invention discloses an automatic production line for forming a special-shaped shaft rod part of a constant-speed driving shaft, and relates to the technical field of machine manufacturing. Comprising a driving transportation unit, a discharging intermittent unit and an air injection unit. The driving and transporting unit drives the shaft lever part carrying disc to intermittently rotate through a driving shaft to realize accurate conveying; the discharging intermittent unit utilizes a cam driving and clamping mechanism to enable an intermittent separation rotary drum to release single parts to a discharging opening in batches; the air injection unit drives a sliding push rod through an eccentric rotary disc, and periodic pulse airflow is formed at a pulse air nozzle to assist discharging of shaft rod parts at the discharging position. All the units are driven by a driving shaft single power source in an integrated mode, action cooperation is achieved through mechanical interlocking, accumulation is avoided through accurate intermittent conveying, the rhythm is controlled through batched quantitative discharging, discharging is efficiently assisted by pulse airflow, the structure is compact, energy consumption is low, the device is adaptive to different part specifications, and the shaft rod part conveying stability and production efficiency are remarkably improved; and the equipment complexity and the maintenance cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical manufacturing, more particularly to an automatic production line for forming an equal-speed driving shaft special-shaped shaft rod part. BACKGROUND

[0002] In the automatic production process of the equal-speed driving shaft special-shaped shaft rod forming part, the existing production line faces significant technical challenges in intermittent material conveying, blanking control and metal extrusion processing coordination. On the one hand, the traditional driving mechanism adopts a rough transmission, which is difficult to realize the precise intermittent rotation of the material carrier, resulting in that the special-shaped shaft rod part cannot meet the strict requirements of the extrusion die on the position accuracy of the part when it is transferred from the feeding to the extrusion processing station due to positioning deviation or uneven spacing, which easily causes problems such as size deviation, surface quality defects and the like of high-quality aluminum alloy metal extrusion forming. At the same time, the blanking link lacks a batch quantitative control mechanism, and the continuous feeding mode often makes multiple parts enter the extrusion station at the same time, which not only destroys the coordination of the extrusion processing rhythm, but also may cause abnormal extrusion load due to the stacking of multiple parts, resulting in die damage or part scrap.

[0003] On the other hand, the metal deformation during the extrusion processing will generate a certain stress, and if the material is accumulated or retained at the blanking position, it is easy to cause uneven stress when the subsequent part is extruded, affecting the forming consistency. The existing production line relies on manual removal of retained parts at the blanking position or uses constant airflow to blow, which cannot adapt to the continuity requirement of the extrusion processing, and it is also difficult to effectively remove the metal scraps or deformed parts generated due to extrusion. In addition, the independent power source design of the driving, blanking, extrusion processing and auxiliary blanking modules leads to complex system structure, high energy consumption, poor coordination of each link, especially the lag in the matching of the extrusion processing and blanking rhythm, which is difficult to quickly adapt to the adjustment of the extrusion process parameters of different specifications of parts. Therefore, an automatic production line integrating precise intermittent conveying, batch blanking, extrusion processing linkage and periodic airflow assisted blanking function is needed to improve the stability, precision and production efficiency of metal extrusion processing.

[0004] Therefore, the present application provides an automatic production line for forming an equal-speed driving shaft special-shaped shaft rod part. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application aims to provide an automatic production line for forming an equal-speed driving shaft special-shaped shaft rod part.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The automatic production line for forming an equal-speed driving shaft special-shaped shaft rod part comprises a shaft rod part, and further comprises:

[0008] The drive transport unit comprises a driving mechanism and a driven mechanism, the driving mechanism is in transmission connection with the driven mechanism, and the driven mechanism intermittently transports shaft parts through the rotating force of the driving mechanism.

[0009] The blanking intermittent unit comprises a blanking mechanism and an intermittent mechanism, the blanking mechanism is in transmission connection with the intermittent mechanism, the blanking mechanism is used for continuously transporting shaft parts to the feeding position of the driven mechanism, and the intermittent mechanism is used for separating the shaft parts on the blanking mechanism in batches according to the rotation of the driven mechanism.

[0010] The air injection unit is in transmission connection with the driving mechanism and is used for air injection discharge of the shaft parts at the blanking position of the driven mechanism through the transmission of the driving mechanism.

[0011] As a further improvement of the application, the driving mechanism comprises a double-platform driving base, a driving shaft is rotatably arranged on the double-platform driving base, an arc-shaped limiting turntable is fixedly arranged at the upper end of the driving shaft, and a driving hub is fixedly arranged on the outer periphery of the arc-shaped limiting turntable; the driven mechanism comprises an intermittent indexing disc rotatably arranged on the double-platform driving base, the intermittent indexing disc is provided with a transmission clamping groove matched with a transmission protrusion of the driving hub, an axle part loading disc is rotatably arranged on the outer wall of the intermittent indexing disc, and the intermittent indexing disc is intermittently rotated by the coupling of the transmission protrusion and the transmission clamping groove when the driving shaft rotates.

[0012] As a further improvement of the application, the blanking mechanism comprises a blanking support fixed to the driving transport unit, the blanking support is provided with a material guiding groove, a self-driven conveying roller and a blanking opening are arranged at the bottom end of the material guiding groove; the intermittent mechanism comprises an intermittent swing lever hingedly connected to the blanking support and a cam driving disc coaxially connected to the driving shaft, the intermittent swing lever is clamped with a positioning tooth disc of the intermittent separation rotating drum through a clamping hook, and the cam driving disc drives the intermittent swing lever to be separated from the clamping when rotating through a protruding part, so that the intermittent separation rotating drum is rotated to release a single axle part to the blanking opening.

[0013] As a further improvement of the application, the air injection unit comprises a main transmission pulley coaxially fixed to the driving shaft, the main transmission pulley drives a driven shaft through a belt transmission, an eccentric rotating disc at the bottom end of the driven shaft drives a sliding push rod to reciprocate through an eccentric top rod; the sliding push rod is connected with a sealing valve plate and an air vent rotating drum opening, a periodic pulse air flow is formed at the pulse air injection nozzle through the alignment / misalignment of the air vent rotating drum opening with the main transmission pulley through hole No. 1 and the closing / opening of the sealing valve plate to the air exhaust valve seat opening.

[0014] As a further improvement of the application, the edge of the arc-shaped limiting turntable is fitted with two arc-shaped notches of the intermittent index plate, and the arc-shaped limiting turntable slides along the two arc-shaped notches when the driving shaft rotates, guiding the transmission protrusion to be embedded in the adjacent transmission clamping groove, so that the rotation angle of the shaft rod part carrier plate is the angle between the center lines of the adjacent transmission clamping grooves.

[0015] As a further improvement of the application, the outer periphery of the intermittent separation rotating drum is provided with a shaft rod part separation plate, and the positioning toothed disc is provided with a positioning clamping groove; in a normal state, the clamping hook of the intermittent swing lever is clamped with the positioning clamping groove, and the shaft rod part separation plate blocks the shaft rod parts on the material guide groove; when the cam driving disc drives the intermittent swing lever to deflect, the clamping hook is separated from the positioning clamping groove, and the shaft rod part is pushed by the conveying roller to drive the shaft rod part separation plate to rotate the intermittent separation rotating drum, so as to release a single shaft rod part.

[0016] As a further improvement of the application, one end of the sliding push rod located in the main transmission pulley is fixed with a piston disc, a gas chamber base is fixedly arranged on the inner wall of the main transmission pulley, and a return spring is arranged between the piston disc and the gas chamber base; in an initial state, the air inlet of the air inlet drum is coincided with the through hole one, and the gas flows to the pulse air jet nozzle through the through hole three at the lower end of the piston disc and the through hole one; when the eccentric top rod pushes the sliding push rod to move upward, the air inlet of the air inlet drum is dislocated from the through hole one, and the gas is discharged through the opening of the exhaust valve seat.

[0017] As a further improvement of the application, a notch is arranged on one side of the material guide groove facing the intermittent separation rotating drum, and the notch is used for avoiding the rotating movement of the shaft rod part separation plate, so as to avoid the interference between the shaft rod part separation plate and the material guide groove.

[0018] As a further improvement of the application, the outer periphery of the driven shaft is sleeved with a driven pulley matched with the main transmission pulley, and the driving shaft drives the driven shaft to rotate synchronously through the belt transmission of the main transmission pulley and the driven pulley.

[0019] As a further improvement of the application, the intermittent swing lever is elastically connected with the blanking support through a swing lever return spring, the clamping hook of the intermittent swing lever is separated from the positioning clamping groove and is reset under the action of the swing lever return spring when the cam driving disc rotates one circle, so that the intermittent separation rotating drum releases a single shaft rod part and is repositioned each time.

[0020] The beneficial effects of the application are as follows:

[0021] The application realizes precise intermittent conveying, batch quantitative feeding and pulse airflow auxiliary feeding through the coordinated operation of the driving conveying unit, the intermittent feeding unit and the jet unit, and has the following beneficial effects: the driving mechanism is coupled with the transmission protruding block and the transmission clamping groove through the cooperation of the arc-shaped limiting turntable and the intermittent indexing disc, so that the shaft rod part carrier disc is accurately intermittently rotated, and continuous feeding blockage is avoided; the intermittent feeding unit is triggered by the intermittent swing lever and the positioning tooth disc clamping and the cam driving disc, realizes single part batch release, and controls the feeding rhythm; the jet unit drives the sliding push rod to reciprocate through the eccentric turntable, forms a periodic pulse airflow at the pulse jet nozzle, assists the shaft rod part to smoothly discharge from the feeding position, avoids accumulation; at the same time, a single power source integrated design is adopted, the driving shaft synchronously drives multiple mechanisms, the structure is simplified and the energy consumption is reduced, the mechanical interlocking mechanism and the self-adaptive adjustment parameter are matched, the system stability and the part adaptability are improved, the equipment layout is compact, the space is saved, the shaft rod part conveying stability and the production efficiency are significantly improved, and the equipment complexity and the maintenance cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a shaft measurement structure schematic diagram of the application;

[0023] Figure 2 It is Figure 1 Another perspective structure schematic diagram;

[0024] Figure 3 It is Figure 1 The structure schematic diagram of removing the shaft rod part carrier disc;

[0025] Figure 4 It is Figure 2 The local enlarged structure schematic diagram of A in the middle;

[0026] Figure 5 It is Figure 3 Another perspective structure schematic diagram;

[0027] Figure 6 It is Figure 5 Another perspective structure schematic diagram;

[0028] Figure 7 It is a structure schematic diagram of the jet unit of the application;

[0029] Figure 8 It is Figure 7 The local enlarged structure schematic diagram of B in the middle.

[0030] Explanation of reference signs: 100, driving transport unit; 101, double-platform driving base; 102, arc-shaped limiting turntable; 103, driving hub; 104, intermittent index plate; 105, transmission clamping groove; 106, transmission protrusion; 107, shaft part loading disc; 200, blanking intermittent unit; 201, blanking support; 2011, intermittent swing lever; 2012, cam driving disc; 2013, swing lever return spring; 2014, intermittent separation rotating drum; 2015, positioning toothed disc; 2016, shaft part separation plate; 2017, positioning clamping groove; 202, material guide groove; 203, shaft part; 204, conveying roller; 205, blanking port; 300, air jet unit; 301, mounting sleeve; 302, pulse air jet nozzle; 303, driven shaft; 3031, driven pulley; 304, eccentric turntable; 3041, eccentric ejector rod; 3051, exhaust valve seat; 3052, sealing valve plate; 3053, sliding push rod; 3054, piston disc; 3055, air vent rotating drum port; 3056, through hole three; 3057, return spring; 3058, air chamber base; 3059, push protrusion; 306, main transmission pulley. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will combine the drawings in the embodiments of the present disclosure to make a clear and complete description of the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The components of the embodiments of the present disclosure described and shown herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure is not intended to limit the scope of the claimed present disclosure, but only represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0032] Embodiment one

[0033] Reference Figures 1-8 As shown, it is a specific embodiment of the present application for the automatic production line for forming the special-shaped shaft part of the constant-speed driving shaft, which comprises a shaft part 203;

[0034] Further comprising:

[0035] The driving transport unit 100 comprises a driving mechanism and a driven mechanism, the driving mechanism is in transmission connection with the driven mechanism, and the driven mechanism performs intermittent conveying on the shaft part 203 through the rotating force of the driving mechanism;

[0036] The intermittent unit 200 includes a feeding mechanism and an intermittent mechanism. The feeding mechanism is drivingly connected to the intermittent mechanism. The feeding mechanism is used to continuously feed the shaft part 203 to the feeding position of the driven mechanism. The intermittent mechanism is used to separate the shaft part 203 on the feeding mechanism in batches according to the rotation of the driven mechanism.

[0037] The jet unit 300 is drivingly connected to the driving mechanism and is used to jet the shaft part 203 at the feeding position of the driven mechanism through the transmission of the driving mechanism.

[0038] The shaft part 203 is a constant-speed driving shaft special-shaped shaft forming part.

[0039] Further, the driving mechanism includes a double-platform driving base 101. The double-platform driving base 101 has an upper space and a lower space. The double-platform driving base 101 is provided with a driving shaft with a built-in motor. The two ends of the driving shaft are located in the upper space and the lower space (upper and lower ends of the driving shaft). The two ends of the driving shaft are rotatable. The upper end of the driving shaft is fixedly provided with an arc-shaped limiting turntable 102. The arc-shaped limiting turntable 102 is provided with an arc-shaped gap one. The outer periphery of the driving shaft located in the upper space is fixedly provided with a driving hub 103. The driving hub 103 is fixedly provided with a transmission protrusion 106.

[0040] The transmission mechanism includes a main transmission pulley 306 fixedly provided on the double-platform driving base 101. The outer wall of the main transmission pulley 306 is rotatably provided with an intermittent index plate 104. The intermittent index plate 104 is provided with a plurality of transmission clamping grooves 105 and a plurality of arc-shaped gaps two. The transmission clamping grooves 105 are used to be coupled with the transmission protrusion 106 when the driving shaft rotates and drives the driving hub 103 to rotate. The outer wall of the main transmission pulley 306 is also rotatably provided with a shaft part loading disc 107. The transmission clamping grooves 105 and the shaft part loading disc 107 are coaxially distributed and fixedly connected.

[0041] Wherein, in normal state, the edge of the arc-shaped limiting turntable 102 is fitted with any one of the arc-shaped gaps two of the intermittent indexing disc 104, and the intermittent indexing disc 104 is limited, when the driving shaft rotates, the driving shaft drives the arc-shaped limiting turntable 102 to rotate synchronously with the driving hub 103 (the center line of the arc-shaped gap one on the arc-shaped limiting turntable 102 coincides with the center line of the driving hub 103), at this time, the edge of the arc-shaped limiting turntable 102 slides along the arc-shaped gap two, and gradually makes the transmission protrusion 106 close to the nearest transmission clamping groove 105, when the driving hub 103 drives the transmission protrusion 106 to rotate to the transmission clamping groove 105 on the intermittent indexing disc 104, the driving hub 103 couples the intermittent indexing disc 104 through the cooperation of the transmission protrusion 106 and the transmission clamping groove 105, and drives the intermittent indexing disc 104 to rotate along the axis of the main transmission pulley 306 during the coupling process (the angle is the angle between the center lines of adjacent transmission clamping grooves 105), thereby driving the shaft rod part carrier disc 107 to rotate by a certain angle; if the driving shaft continues to drive, the shaft rod part carrier disc 107 will rotate by a certain angle when the driving shaft rotates by one circle, and the entering materials falling into the shaft rod part carrier disc 107 are rotated and transported along the axis of the main transmission pulley 306 in turn.

[0042] Further, the blanking assembly includes a blanking support 201 fixed on the side wall of the driving and transporting unit 100, and a guide groove 202 is fixedly arranged on the blanking support 201, the cross section of the guide groove 202 includes but is not limited to a V-shaped section, a plurality of self-driven transmission rollers 204 are rotatably arranged on the bottom end surface of the guide groove 202, and a bottom end surface of the guide groove 202 is also provided with a shaft rod part carrier disc 107.

[0043] The intermittent mechanism includes an intermittent swing lever 2011 hingedly arranged on the blanking support 201, and a cam driving disc 2012 rotatably connected to the blanking support 201, the cam driving disc 2012 is located on one side of the intermittent swing lever 2011, the bottom end surface of the cam driving disc 2012 is fixedly connected and coaxially distributed with one end of the driving shaft located in the space above the platform, the cam driving disc 2012 is fixedly provided with a protruding part one, the side of the intermittent swing lever 2011 facing the cam driving disc 2012 is provided with a protruding part two, the gravity center of the intermittent swing lever 2011 is elastically connected to the blanking support 201 through a swing lever reset spring 2013, and an intermittent separation rotating drum 2014 is rotatably arranged on the blanking support 201, a plurality of shaft rod part separation plates 2016 for blocking a plurality of shaft rod parts 203 falling along the guide groove 202 are circumferentially arranged on the outer periphery of the intermittent separation rotating drum 2014, a positioning tooth disc 2015 is fixedly arranged at the bottom end of the intermittent separation rotating drum 2014, a plurality of positioning clamping grooves 2017 are circumferentially arranged on the positioning tooth disc 2015, one end of the intermittent swing lever 2011 is provided with a clamping hook, and the clamping hook is clamped with any one of the positioning clamping grooves 2017 on the positioning tooth disc 2015 in normal state.

[0044] The guide chute 202 is provided with a notch towards one side of the intermittent separation rotating drum 2014, so as not to interfere with the shaft part separation plate 2016 on the intermittent separation rotating drum 2014 when the intermittent separation rotating drum 2014 rotates;

[0045] When the driving shaft does not rotate, the shaft part 203 is put into the guide chute 202, and the conveying rollers 204 on the guide chute 202 rotate to convey the shaft part 203 to one end of the guide chute 202 provided with the falling port 205, at this time, the clamping hook of the intermittent swing lever 2011 is clamped in any one positioning clamping groove 2017 on the positioning gear disc 2015, so that the intermittent separation rotating drum 2014 cannot rotate, when the intermittent separation rotating drum 2014 keeps not rotating, one of the shaft part separation plates 2016 on the intermittent separation rotating drum 2014 will block the shaft part 203 moving on the guide chute 202, and under the driving of the conveying rollers 204, a plurality of shaft parts 203 will be stranded on the guide chute 202;

[0046] When the driving shaft rotates, the cam driving disc 2012 rotates synchronously with the driving shaft, when the cam driving disc 2012 rotates one circle, the protruding part one on the cam driving disc 2012 will abut against the protruding part two on the intermittent swing lever 2011, at this time, the intermittent swing lever 2011 deflects towards the side of the guide chute 202 and around the hinge of the falling support 201, and the clamping hook on the intermittent swing lever 2011 is out of the any one positioning clamping groove 2017 on the positioning gear disc 2015, the continuously moving conveying rollers 204 drive the shaft part 203 to press the shaft part separation plate 2016 and drive the intermittent separation rotating drum 2014 to rotate, so that one shaft part 203 passes through the blocking of one of the shaft part separation plates 2016 and is conveyed to the falling port 205 by the conveying rollers 204 and then falls into the shaft part loading disc 107; but after the abutting process between the protruding part one on the cam driving disc 2012 and the protruding part two on the intermittent swing lever 2011 ends, the intermittent swing lever 2011 is reset to the side away from the guide chute 202 under the elastic tension of the swing lever reset spring 2013, at this time, the next one positioning clamping groove 2017 along the clockwise direction of the positioning gear disc 2015 is clamped with the clamping hook on the intermittent swing lever 2011, so the position of the intermittent separation rotating drum 2014 is fixed again, and thus the next one shaft part separation plate 2016 along the clockwise direction on the intermittent separation rotating drum 2014 continues to block the next shaft part 203 on the next guide chute 202, when the driving shaft continuously rotates and continuously supplies the shaft part 203 to the guide chute 202, the state is repeated, so that the shaft part 203 falling into the shaft part loading disc 107 from the falling port 205 on the guide chute 202 is continuously and intermittently falling.

[0047] Further, the air injection unit 300 comprises a main transmission pulley 306 coaxially fixed at one end of the driving shaft away from the cam driving disc 2012, and the inner wall of the double-platform driving base 101 is also rotationally provided with a driven shaft 303, a driven pulley 3031 is sleeved on the outer periphery of the driven shaft 303 and is driven by the main transmission pulley 306 through a belt, an eccentric turntable 304 is fixedly arranged at the bottom end of the driven shaft 303, and an eccentric top rod 3041 is fixedly arranged at the eccentric position of the eccentric turntable 304;

[0048] The air injection unit 300 further comprises a through hole one arranged in a circumferential array on the main transmission pulley 306, an air chamber base 3058 fixedly arranged on the inner wall of the main transmission pulley 306, a sliding push rod 3053 slidably arranged on the air chamber base 3058, a pushing protrusion 3059 fixedly arranged at one end of the sliding push rod 3053 away from the main transmission pulley 306, a sealing valve plate 3052 fixedly arranged at one end of the sliding push rod 3053 in the main transmission pulley 306, a piston disc 3054 fixedly arranged on the outer periphery of the sealing valve plate 3052, a plurality of air outlet ports 3055 corresponding to the through hole one arranged in a circumferential array on the outer wall of the piston disc 3054, a plurality of through holes three 3056 arranged on the upper and lower end faces of the piston disc 3054, a reset spring 3057 elastically arranged between the bottom end of the piston disc 3054 and the upper end face of the air chamber base 3058, and an exhaust valve seat 3051 provided on the outer wall of the main transmission pulley 306 and having an opening arranged thereon, wherein the opening of the exhaust valve seat 3051 is closed by the sealing valve plate 3052 in a normal state, and an air inlet hole is further arranged on the air chamber base 3058.

[0049] Specifically, when the driving shaft rotates, the driving shaft drives the cooperation of the driven pulley 3031 through the main transmission pulley 306 and the transmission belt, so that the driven shaft 303 rotates synchronously with the driving shaft. When the driven shaft 303 rotates, the eccentric turntable 304 rotates synchronously, and the eccentric top rod 3041 eccentrically arranged on the eccentric turntable 304 abuts against the pushing protrusion 3059 connected to the air chamber base 3058 through the sliding push rod 3053. When the eccentric top rod 3041 and the pushing protrusion 3059 abut against each other, the sliding push rod 3053 moves upward along the axial direction of the main transmission pulley 306, and the piston disc 3054 moves synchronously with the sliding push rod 3053 during the upward movement of the sliding push rod 3053, so that the through hole one and the air outlet port 3055 are disengaged and no longer coincide with each other. At the same time, the sealing valve plate 3052 is disengaged from the exhaust valve seat 3051 along with the upward movement of the sliding push rod 3053. An installation sleeve 301 is further arranged in communication on the outer wall of the main transmission pulley 306, a pulse air injection nozzle 302 is arranged in communication on the outer periphery of the installation sleeve 301, and the outlet end of the pulse air injection nozzle 302 is directed to the unloading position on the shaft rod part carrier disc 107.

[0050] More specifically, in the initial state where the sliding push rod 3053 is in the low position, the external air continuously enters the device from the air inlet hole of the air chamber base 3058, fills the annular chamber between the air chamber base 3058 and the piston disc 3054, at this time the air vent drum port 3055 on the outer wall of the piston disc 3054 is completely aligned with the through hole one of the main transmission pulley 306, the sealing valve plate 3052 tightly closes the opening of the exhaust valve seat 3051 to seal it, the gas flows downward through the through hole three 3056 at the lower end surface of the piston disc 3054 into the hollow area inside, and then flows out from the position where the air vent drum port 3055 and the through hole one coincide; when the eccentric top rod 3041 abuts against the push protrusion 3059 to move the sliding push rod 3053 upward, it drives the sealing valve plate 3052 and the piston disc 3054 to move synchronously upward, at this time the air vent drum port 3055 is offset from the through hole one to cut off the main gas path, and the sealing valve plate 3052 is separated from the opening of the exhaust valve seat 3051 to open the originally closed exhaust valve seat 3051 opening, so that the gas is discharged through the exhaust valve seat 3051 opening; at this time, the gas enters the cavity at the upper end of the piston disc 3054 through the through hole three 3056 passing through the upper and lower ends of the piston disc 3054, and flows to the opening between the exhaust valve seat 3051 and the sealing valve plate 3052, and finally is discharged from the outlet end of the pulse jet nozzle 302 in communication with the cavity, to realize the blowing function opposite the unloading position of the shaft part carrier 107; after the eccentric rotating disc 304 continues to rotate and the eccentric top rod 3041 moves away from the push protrusion 3059, the sliding push rod 3053 moves downward under the elastic force of the return spring 3057, and the sealing valve plate 3052 and the piston disc 3054 move synchronously downward, at this time the air vent drum port 3055 is re-aligned with the through hole one to restore the main gas path, and the sealing valve plate 3052 re-seals the opening of the exhaust valve seat 3051, so that the gas is discharged again from the position where the air vent drum port 3055 and the through hole one coincide; the continuous rotation of the drive shaft makes the driven shaft 303 rotate continuously, and the eccentric top rod 3041 abuts against the push protrusion 3059 once every revolution, so that the sliding push rod 3053 completes one reciprocating motion, and the gas path completes one cycle of "main gas path conduction to main gas path cut-off and then to main gas path restoration", forming a periodic pulse airflow at the outlet end of the pulse jet nozzle 302, effectively preventing the shaft part 203 from accumulating at the unloading position, and improving the unloading efficiency and stability;

[0051] In summary, the automatic production line for forming special-shaped shaft rod parts of constant velocity drive shafts of the application realizes automatic processing of shaft rod parts 203 through the cooperative operation of the driving mechanism of the driving transport unit 100, the intermittent mechanism of the intermittent unit 200, and the jet unit 300: the driving shaft is limited by the arc-shaped limiting turntable 102 and the arc-shaped gap of the intermittent indexing disc 104, the transmission protrusion 106 and the transmission clamping groove 105 are coupled to drive the intermittent rotation of the shaft rod part carrier disc 107 to convey the shaft rod part 203, the conveying roller 204 of the blanking mechanism continuously conveys the shaft rod part 203, the intermittent mechanism is matched by the abutting of the protruding part one of the cam driving disc 2012 and the protruding part two of the intermittent swing rod 2011 to make the intermittent separation rotating drum 2014 rotate to release the shaft rod part 203 in batches to fall into the shaft rod part carrier disc 107, the jet unit 300 rotates the driven shaft 303 by the driving shaft, the eccentric top rod 3041 of the eccentric rotating disc 304 is eccentrically arranged to drive the reciprocating movement of the sliding push rod 3053, and the gas outlet end of the pulse jet nozzle 302 generates a periodic pulse airflow to blow the blanking position of the shaft rod part carrier disc 107; the beneficial effects thereof include precise and controllable intermittent conveying, batched and quantitative blanking, pulse airflow efficient cleaning, single power source integrated design, and self-adaptive production rhythm, which improves the conveying stability and production efficiency of the shaft rod part 203, and reduces the equipment complexity and energy consumption.

[0052] Finally, it should be noted that: the above-described embodiments are only specific embodiments of the present disclosure, used to illustrate the technical solutions of the present disclosure, and not to limit them, the protection scope of the present disclosure is not limited thereto, although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: any person skilled in the art within the technical range disclosed by the present disclosure, still can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and all should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An automated production line for forming special-shaped shaft parts of a constant velocity drive shaft, comprising a shaft part (203), characterized in that: Also includes: A driving and transporting unit (100) comprises a driving mechanism and a driven mechanism, wherein the driving mechanism is connected to the driven mechanism in a transmission manner, and the driven mechanism intermittently transports the shaft part (203) through the rotational force of the driving mechanism, and the driven mechanism is adapted to be equipped with an extruder for extruding the shaft part (203); A blanking intermittent unit (200) comprises a blanking mechanism and an intermittent mechanism, wherein the blanking mechanism is connected to the intermittent mechanism in a transmission manner, the blanking mechanism is used to continuously convey shaft rod parts (203) to a loading position of the driven mechanism, and the intermittent mechanism is used to separate the shaft rod parts (203) on the blanking mechanism in batches according to the rotation of the driven mechanism; The jet unit (300) is connected to the driving mechanism and is used to jet the shaft part (203) at the lower material position of the driven mechanism through the transmission of the driving mechanism.

2. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 1 is characterized in that: The driving mechanism comprises a dual-platform driving base (101), a driving shaft is rotatably provided on the dual-platform driving base (101), an arc-shaped limit rotating disk (102) is fixedly provided on the upper end of the driving shaft, and a driving hub (103) is fixedly provided on the outer periphery; the driven mechanism comprises an intermittent indexing disk (104) rotatably provided on the dual-platform driving base (101), a transmission slot (105) is provided on the intermittent indexing disk (104) and is matched with a transmission protrusion (106) of the driving hub (103), a shaft part carrier (107) is rotatably provided on the outer wall of the intermittent indexing disk (104), and when the driving shaft rotates, the shaft part carrier (107) is driven to rotate intermittently through the coupling between the transmission protrusion (106) and the transmission slot (105).

3. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 2, characterized in that: The invention comprises an intermittent partitioning drum (2014), wherein the blanking mechanism comprises a blanking bracket (201) fixed to the driving transport unit (100), the blanking bracket (201) is provided with a guide trough (202), and the bottom end of the guide trough (202) is provided with a self-driven conveying roller (204) and a blanking port (205); the intermittent mechanism comprises an intermittent rocker (2011) hinged to the blanking bracket (201) and a cam drive disk (2012) coaxially connected to the driving shaft, the intermittent rocker (2011) is engaged with a positioning toothed disk (2015) of the intermittent partitioning drum (2014) through a snap hook, and when the cam drive disk (2012) rotates, the intermittent rocker (2011) is driven to disengage the engagement through a protrusion, so that the intermittent partitioning drum (2014) rotates to release a single shaft rod part (203) to the blanking port (205).

4. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 3 is characterized in that: The jet unit (300) includes a main transmission pulley (306) coaxially fixed to the drive shaft, the main transmission pulley (306) drives a driven shaft (303) through a belt, and the eccentric rotary disc (304) at the bottom end of the driven shaft (303) drives a sliding push rod (3053) to reciprocate through an eccentric push rod (3041); the sliding push rod (3053) connects a sealing valve plate (3052) and a ventilation drum port (3055), and through the alignment / misalignment of the ventilation drum port (3055) and a through hole of the main transmission pulley (306), and the closing / opening of the exhaust valve seat (3051) by the sealing valve plate (3052), a periodic pulse airflow is formed in the pulse jet nozzle (302).

5. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 2, characterized in that: The edge of the arc-shaped limit turntable (102) fits into the arc-shaped notch 2 of the intermittent indexing plate (104); when the driving shaft rotates, the arc-shaped limit turntable (102) slides along the arc-shaped notch 2, guiding the transmission protrusion (106) to be embedded in the adjacent transmission slot (105), so that the shaft part carrier (107) rotates each time at an angle equal to the angle between the center lines of the adjacent transmission slots (105).

6. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 3, characterized in that: The outer periphery array of the intermittent separation drum (2014) is provided with an axle rod part partition plate (2016), and the positioning toothed disc (2015) array is provided with a positioning slot (2017); under normal conditions, the engaging hook of the intermittent rocker (2011) is engaged with the positioning slot (2017), and the axle rod part partition plate (2016) blocks the axle rod part (203) on the guide trough (202); when the cam drive disc (2012) drives the intermittent rocker (2011) to deflect, the engaging hook disengages from the positioning slot (2017), and the conveying roller (204) drives the axle rod part (203) to push the axle rod part partition plate (2016) to rotate the intermittent separation drum (2014), thereby releasing a single axle rod part (203).

7. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 4, characterized in that: A piston disc (3054) is fixed to one end of the sliding push rod (3053) located inside the main transmission pulley (306), and an air chamber base (3058) is fixed to the inner wall of the main transmission pulley (306). A return spring (3057) is provided between the piston disc (3054) and the air chamber base (3058); in the initial state, the ventilation drum opening (3055) coincides with the through hole one, and the gas flows toward the pulse air nozzle (302) through the through hole three (3056) at the lower end of the piston disc (3054) and the through hole one; when the eccentric push rod (3041) pushes the sliding push rod (3053) upward, the ventilation drum opening (3055) and the through hole one are misaligned, and the gas is discharged from the opening of the exhaust valve seat (3051) instead.

8. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 6, characterized in that: The guide trough (202) is provided with a notch on one side facing the intermittent separation drum (2014), and the notch is used to avoid the rotational movement of the shaft part partition plate (2016) to prevent the shaft part partition plate (2016) from interfering with the guide trough (202).

9. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 4, characterized in that: The outer periphery of the driven shaft (303) is provided with a driven pulley (3031) that cooperates with the main transmission pulley (306), and the driving shaft drives the driven shaft (303) to rotate synchronously through the belt transmission of the main transmission pulley (306) and the driven pulley (3031).

10. The automated production line for forming special-shaped shaft parts of constant velocity drive shafts according to claim 6, characterized in that: The intermittent rocker arm (2011) is elastically connected to the blanking bracket (201) via a rocker arm reset spring (2013); when the cam drive disk (2012) rotates one circle, the engaging hook of the intermittent rocker arm (2011) disengages from the positioning slot (2017) and is reset under the action of the rocker arm reset spring (2013), so that the intermittent separation drum (2014) releases a single shaft part (203) each time and repositions it.

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