KR20230167545A - apparatus for manufacturing power transmission mechanism of agricultural machine - Google Patents

Abstract

In the manufacturing apparatus of an agricultural machinery power transmission mechanism that is provided between agricultural machinery and a towing vehicle and transmits the driving force of the towing vehicle to the agricultural machinery, a PTO yoke and a PTO cross are provided on one side and form a universal joint on the power withdrawal side of the agricultural machinery power transmission mechanism. A universal joint assembly unit that assembles the bearing and shaft yoke and assembles the PIC yoke, PIC cross bearing, and pipe yoke forming a universal joint on the power inlet side of the agricultural machinery power transmission mechanism, and a universal joint assembly unit provided on the other side and assembled in the universal joint assembly unit. A spline shaft to the universal joint on the power output side, a joint pipe to the universal joint on the power input side, an automatic welding unit that automatically and simultaneously welds the joint pipes to the spline shaft on the same axis, the universal joint assembly unit, and the automatic welding It is characterized in that it includes a transfer unit provided between the units to transfer the power withdrawal side universal joint and the power input side universal joint assembled in the universal joint assembly unit to the automatic welding unit.
Accordingly, the universal joint of the agricultural machinery power transmission mechanism is provided between agricultural machinery such as a rotary, plow, baler, etc. and a towing vehicle such as a tractor or cultivator and transmits the driving force of the towing vehicle to the agricultural machinery. By assembling and welding and bearing parts through an automated process, it is possible to replace the existing manual process, improve productivity and quality by reducing the defect rate, and enable the timely supply of various types of products in large quantities in a short period of time. It can meet market demands, enable planned production by making it easier to manage appropriate inventory, and provide a manufacturing device for agricultural machinery power transmission equipment that can improve the working environment and minimize labor consumption. .

Description

Manufacturing device for agricultural machine power transmission mechanism {apparatus for manufacturing power transmission mechanism of agricultural machine}

The present invention relates to a manufacturing device for a power transmission mechanism for agricultural machinery, and more specifically, to a device installed between agricultural machinery such as a rotary, plow, baler, etc. and a towing vehicle such as a tractor or cultivator. By assembling and welding the universal joints and bearing parts of the agricultural machinery power transmission mechanism that transmits the driving force of the vehicle to agricultural machinery through an automated process, it is possible to replace the existing manual process and improve productivity and quality by reducing the defect rate. It enables timely supply of various types of products in large quantities in a short period of time to meet market demands, facilitates management of appropriate inventory, enables planned production, improves the working environment, and minimizes manpower consumption. It relates to a manufacturing device for agricultural machinery power transmission mechanisms that can be used.

Generally, agricultural machinery (rotary, plow, baler, etc.) is connected to a towing vehicle (tractor, cultivator, etc.) and is equipped to perform work by receiving the power of the towing vehicle.

At this time, an agricultural machinery power transmission mechanism is provided between the agricultural machinery and the towing vehicle so that the driving force of the towing vehicle is transmitted to the agricultural machinery.

An example of an agricultural machinery power transmission mechanism according to the prior art is disclosed in Republic of Korea Patent Registration No. 10-1833515 (registered on February 22, 2018, hereinafter referred to as ‘Patent Document 1’).

On the other hand, the above-mentioned agricultural machinery power transmission mechanism is a universal joint on the power withdrawal side connected to the towing vehicle side, a universal joint on the power inlet side connected to the agricultural machine side, and a universal joint on the power withdrawal side and a universal joint on the power inlet side. It may be composed of a spline shaft and joint pipe provided for connection.

At this time, the universal joint on the power output side is prepared by assembling a PTO yoke, a PTO cross bearing, and a shaft yoke, and the universal joint on the power input side is prepared by assembling a PIC yoke, a PIC cross bearing, and a pipe yoke.

However, in the past, the assembly of the universal joint on the power withdrawal side and the universal joint on the power input side had to be done manually by human hands, so productivity was significantly reduced, and workers' fatigue increased due to repetition of the same operation, reducing efficiency. , due to the nature of manual work, the occurrence of defects may increase, and since relatively heavy parts must be handled, there is a problem that even when producing small quantities of various types, it may be disadvantageous.

In addition, since the universal joint on the power withdrawal side and the universal joint on the power input side must be joined to the spline shaft and joint pipe by manual welding by the worker, the occurrence of welding defects may increase, and the fatigue of the worker may increase. There is a problem that it may become difficult to improve the working environment, and the time required to produce products may also increase.

Republic of Korea Patent Registration No. 10-1833515 (registered on February 22, 2018)

The purpose of the present invention is to provide automated universal joints and bearing parts of the agricultural machinery power transmission mechanism that are provided between agricultural machinery such as rotaries, plows, balers, etc. and towing vehicles such as tractors and cultivators, and transmit the driving force of the towing vehicle to the agricultural machinery. By assembling and welding through the process, it replaces the existing manual process, reduces the defect rate, improves productivity and quality, and enables the timely supply of various types of products in large quantities in a short period of time, meeting market demands. , the purpose is to provide a manufacturing device for agricultural machinery power transmission equipment that can facilitate planned production by making management of appropriate inventory easier and minimize labor consumption along with improving the working environment.

In order to achieve the above object, according to the present invention, in the manufacturing device of the agricultural machinery power transmission mechanism provided between the agricultural machinery and the towing vehicle and transmitting the driving force of the towing vehicle to the agricultural machinery, the power transmission mechanism is provided on one side and the power of the agricultural machinery power transmission mechanism is provided. A universal joint assembly unit that assembles the PTO yoke, PTO cross bearing, and shaft yoke forming the universal joint on the output side, and the PIC yoke, PIC cross bearing, and pipe yoke forming the universal joint on the power inlet side of the agricultural machinery power transmission mechanism, and the other side. An automatic welding unit provided in the universal joint assembly unit to automatically and simultaneously weld the spline shaft to the universal joint on the power withdrawal side, the joint pipe to the universal joint on the power inlet side, and the joint pipe to the spline shaft on the same axis. And, a transfer unit provided between the universal joint assembly unit and the automatic welding unit to transfer the power withdrawal side universal joint and the power input side universal joint assembled in the universal joint assembly unit to the automatic welding unit. It is characterized by

Here, the universal joint assembly unit includes an assembly table forming a foundation, a rotary joint for rotatably supporting a PTO yoke or a PIC yoke provided on the assembly table and seated upward, and a PTO seated on the rotary joint. As long as the PTO cross bearing is coupled to the yoke or the PIC cross bearing is coupled to the PIC yoke, the rotary joint is approached or spaced from the left and right sides of the rotary joint and the bearing cap is pressed into the outside of the PTO yoke or PIC yoke using an instantaneous striking method. A pair of bearing cap assemblies are provided at the rear of the rotary joint on the assembly table, and the PTO yoke or PIC yoke is rotated by 90° after the PTO cross bearing is coupled to the PTO yoke or the PIC cross bearing is coupled to the PIC yoke. It is preferable that the shaft yoke or pipe yoke is fixed at the rear of the rotary joint so that the shaft yoke or pipe yoke is coupled and includes a yoke finishing supply unit provided to approach or be spaced from the rotary joint.

In addition, the automatic welding unit includes a welding workbench that is connected to the universal joint assembly unit through the transfer unit and forms a foundation, and is provided on one side of the welding workbench to fix the universal joint and the spline shaft on the power extraction side. A first fixing jig and a second fixing jig provided on the other side of the welding workbench to fix the universal joint and joint pipe on the power inlet side and sliding away from or close to the first fixing jig to achieve zero-point adjustment setting. A jig, a rotation drive unit connected to the first fixing jig and the second fixing jig and providing driving force to rotate the first fixing jig and the second fixing jig, between the rotation drive unit and the first fixing jig and A transmission assembly provided between the rotation drive unit and the second fixing jig to transmit the driving force of the rotation drive unit to the first fixing jig and the second fixing jig, and the first fixing jig and the second fixing jig on the upper part of the welding worktable. 2 It is preferable to include a welding portion provided on one side of the spline shaft and joint pipe rotated by the fixing jig so that the circumference of the connection portion is welded while the spline shaft and joint pipe are rotated.

According to the present invention, an agricultural machinery power transmission mechanism is provided between agricultural machinery such as a rotary, plow, baler, etc. and a towing vehicle such as a tractor or cultivator, and transmits the driving force of the towing vehicle to the agricultural machinery. By assembling and welding universal joints and bearing parts through an automated process, it is possible to replace existing manual processes, improve productivity and quality by reducing defect rates, and provide timely supply of various types of products in large quantities in a short period of time. We will provide a manufacturing device for agricultural machinery power transmission equipment that can meet market demands, enable planned production by making it easier to manage appropriate inventory, and minimize labor consumption while improving the working environment. You can.

1 is a plan view from above of the manufacturing apparatus for the power transmission mechanism of agricultural machinery according to the present invention;
Figure 2 is a top view of the universal joint assembly unit according to the present invention,
Figure 3 is a front view of the universal joint assembly unit of Figure 2;
Figure 4 is a side view of the universal joint assembly unit of Figure 2;
Figure 5 is a side cross-sectional view of the cap holder and a front view of the guide bush of the bearing cap assembly of Figure 3;
Figure 6 is an exploded view of the universal joint on the power withdrawal side assembled by the universal joint assembly unit according to the present invention;
Figure 7 is a top view of the automatic welding unit according to the present invention,
Figure 8 is a front view of the automatic welding unit of Figure 7;
Figure 9 is an exploded view and joint completeness of the agricultural machinery power transmission mechanism welded and joined by the automatic welding unit according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

As shown in FIG. 1, the manufacturing device for the power transmission mechanism for agricultural machinery according to the present invention is provided between agricultural machinery such as a rotary, plow, baler, etc. and a towing vehicle such as a tractor or cultivator to transfer the driving force of the towing vehicle to the agricultural machinery. The agricultural machinery power transmission mechanism 10 is manufactured and includes a universal joint assembly unit 100, an automatic welding unit 200, and a transfer unit 300.

As shown in FIGS. 2 to 6, the universal joint assembly unit 100 includes a PTO yoke 21 provided on one side of the device and forming the universal joint 20 on the power extraction side of the agricultural machinery power transmission mechanism 10, The PTO cross bearing (23) and shaft yoke (25) are assembled, and the PIC yoke (31), PIC cross bearing (33), and pipe yoke ( 35) is provided to assemble.

Figure 6 shows the power withdrawal side universal joint 20 assembled by the universal joint assembly unit 100 according to the present invention in a disassembled state, but the same is true for the power input side universal joint 30.

As shown in FIGS. 7 to 9, the automatic welding unit 200 is provided on the other side of the device and includes a spline shaft 50 on the power extraction side universal joint 20 assembled in the universal joint assembly unit 100, A joint pipe 60 is provided on the power inlet side universal joint 30 and a joint pipe 60 on the spline shaft 50 is automatically and simultaneously welded on the same axis.

As shown in FIG. 1, the transfer unit 300 is provided between the universal joint assembly unit 100 and the automatic welding unit 200 and is a power extraction side universal joint assembled in the universal joint assembly unit 100 ( 20) and the universal joint 30 on the power inlet side are provided to be transferred to the automatic welding unit 200.

Accordingly, an agricultural machinery power transmission mechanism (10) is provided between agricultural machinery such as a rotary, plow, baler, etc. and a towing vehicle such as a tractor or cultivator, and transmits the driving force of the towing vehicle to the agricultural machinery. By assembling and welding universal joints and bearing parts through an automated process, it is possible to replace existing manual processes, reduce defect rates, improve productivity and quality, and produce large quantities of various types of products at the right time in a short period of time. Provides a manufacturing device for agricultural machinery power transmission equipment that can meet market demands by being able to supply, enable planned production by making it easier to manage appropriate inventory, and minimize labor consumption while improving the working environment. can do.

As shown in FIGS. 2 to 4, the universal joint assembly unit 100 includes an assembly table 110 forming a foundation, and a PTO yoke 21 provided on the assembly table 110 and seated upward. A PTO cross bearing (23) is coupled to the rotary joint (120) that rotatably supports the PIC yoke (31) and the PTO yoke (21) mounted on the rotary joint (120), or a PIC cross bearing is attached to the PIC yoke (31). (33) approaches or moves away from the rotary joint (120) from the left and right sides of the rotary joint (120) so that the bearing cap (40) is pressed into the outside of the PTO yoke (21) or PIC yoke (31) using an instantaneous blow method. A pair of bearing cap assemblies 130 and a pair of bearing cap assemblies 130 are provided at the rear of the rotary joint 120 on the assembly table 110, so that the PTO cross bearing 23 is coupled to the PTO yoke 21 or to the PIC yoke 31. After the PIC cross bearing (33) is combined, the PTO yoke (21) or PIC yoke (31) is rotated 90° and the shaft yoke (25) or pipe yoke (35) is connected to the rear of the rotary joint (120). The shaft yoke 25 or the pipe yoke 35 is fixed and includes a yoke finish supply unit 140 provided to approach or be spaced apart from the rotary joint 120.

Accordingly, unlike in the past, the assembly of the universal joint 20 on the power withdrawal side and the universal joint 30 on the power input side was performed manually by human hands, making the process unproductive and inefficient, as shown in Figure 6. As shown, the PTO yoke (21), PTO cross bearing (23) and shaft yoke (25) are automatically assembled, or the PIC yoke (31), PIC cross bearing (33) and pipe yoke (35) are automatically assembled. By doing so, worker fatigue can be minimized and efficiency can be improved, and the universal joint 20 on the power withdrawal side or the universal joint 30 on the power input side of the agricultural machinery power transmission mechanism 10 can be easily assembled sequentially, reducing the defect rate. can be reduced to improve productivity and quality.

As shown in FIGS. 1 to 4, the assembly table 110 is provided in a plurality to form one group, and each upper part is provided with a bearing cap assembly 130 and a yoke finish centered on the rotary joint 120. The supply unit 140 is arranged radially, and a pneumatic actuator that drives the rotation of the rotary joint 120 is provided at the bottom, and hydraulic components drive the hydraulic cylinders of the bearing cap assembly unit 130 and the yoke finish supply unit 140, respectively. are provided.

As an embodiment of the present invention, as shown in FIG. 1, it is preferable that three assembly tables 110 are arranged to form a set facing each other.

As shown in FIGS. 2 to 4, the rotary joint 120 is operated by a pneumatic actuator provided at the bottom of the assembly table 110 when the PTO yoke 21 or the PIC yoke 31 is seated at the top. The PTO yoke (21) or PIC yoke (31) is rotated by 90° in the plane.

Here, the rotation of the PTO yoke (21) or the PIC yoke (31) by the rotary joint (120) is performed by assembling the PTO cross bearing (23) to the PTO yoke (21) or the PIC cross bearing (33) to the PIC yoke (31). It is desirable to make this happen automatically under the control of the control unit 400, which will be described later, after assembly.

As shown in FIGS. 2 and 3, the bearing cap assembly 130 is a PTO cross bearing 23 coupled to the PTO yoke 21 mounted on the rotary joint 120 or a PIC yoke 31. A first hydraulic cylinder 131 that provides a driving force to approach or separate from the rotary joint 120 by hydraulic pressure from the left and right sides of the rotary joint 120 so that the cross bearing 33 is coupled, and on the upper surface of the assembly table 110 A first cylinder support 133 that is coupled and provided between the first hydraulic cylinder 131 and the assembly table 110 to support the first hydraulic cylinder 131 with respect to the assembly table 110, and a first hydraulic cylinder It is provided at the tip of (131), bites the bearing cap 40, and when advanced by the first hydraulic cylinder 131, the bearing cap 40 moves to the outside of the PTO yoke 21 or the PIC yoke 31 in an instantaneous striking manner. It includes a cap holder 135 that allows press fitting.

Accordingly, the bearing cap 40 fixed to the cap holder 135 is press-fitted to the outside of the PTO yoke 21 or the PIC yoke 31 by hydraulic driving of the first hydraulic cylinder 131, thereby forming the PTO yoke ( 21) Alternatively, the PTO cross bearing (23) or PIC cross bearing (33) can be easily assembled to the inside of the PTO yoke (21) or the PIC yoke (31). (23) or PIC After the cross bearing (33) is assembled, when the PTO yoke (21) or PIC yoke (31) is rotated 90° by the plane rotation of the rotary joint (120), the PTO yoke (21) or PIC The bearing cap 40 is rotated 90° and press-fitted so that the shaft yoke 25 or pipe yoke 35 can be assembled to the outside of the yoke 31, so that the universal joint 20 on the power withdrawal side or the universal joint on the power inlet side is installed. (30) can be easily and automatically assembled.

Here, the forward and backward movement of the cap holder 135 by the hydraulic drive of the first hydraulic cylinder 131 is repeatedly performed for setting at the beginning of operation, and the first hydraulic cylinder supported by the first cylinder support 133 The first cylinder support 133 is provided so that the height of the cylinder 131 is fixed vertically to the rotary joint 120 and matches the height of the axial hole of the PTO yoke 21 or PIC yoke 31 on which the bearing cap 40 is assembled. It is desirable.

As shown in FIG. 5, the cap holder 135 is provided as a segmented piece radially divided on the front, but includes a guide bush 136 provided to form an overall cylindrical appearance, and a guide bush 136 at the tip of the guide bush 136. It is provided with a cap support portion 137 on which the bearing cap 40 is inserted and fixed to the inside, and a cap support portion 137 provided at the rear of the cap support portion 137 inside the guide bush 136 to attach the cap support portion 137 to the guide bush 136. It includes a holder spring 138 that elastically supports.

Accordingly, the bearing cap 40 is easily fixed to the tip of the cap holder 135, and the bearing cap 40 is connected to the PTO yoke 21 or the PIC yoke 31 by hydraulic drive of the first hydraulic cylinder 131. It can be firmly pressed into place.

Figure 5 (a) is a side cross-sectional view of the cap holder 135 according to the present invention, and Figure 5 (b) is a front view of the guide bush 136.

As shown in FIGS. 2 to 4, the yoke finish supply unit 140 is provided after the PTO cross bearing 23 is coupled to the PTO yoke 21 or the PIC cross bearing 33 is coupled to the PIC yoke 31. With the PTO yoke (21) or PIC yoke (31) rotated at 90°, the shaft yoke (25) or pipe yoke (35) is connected to the rotary joint (120) by hydraulic pressure from the rear of the rotary joint (120). It is coupled to the second hydraulic cylinder 141, which provides driving force for approaching or moving away, and the upper surface of the assembly table 110 and is provided between the second hydraulic cylinder 141 and the assembly table 110 to form a second hydraulic cylinder ( 141) is provided at the tip of the second hydraulic cylinder 141 and a second cylinder support 143 for supporting the assembly table 110, so that the shaft yoke 25 or pipe yoke 35 is fixed and rotates when moving forward. A yoke fixing jig 145 that transports the shaft yoke 25 or pipe yoke 35 to be assembled on the PTO yoke 21 or PIC yoke 31 fixed to the joint 120, and a second cylinder support 143. The first LM guide 147 is coupled to the upper surface of the assembly table 110 at the front and is provided between the yoke fixing jig 145 and the assembly table 110 to support and guide the forward and backward transfer of the yoke fixing jig 145. ) includes.

Accordingly, the shaft yoke (25) or pipe yoke (35) is stably transported by the first LM guide (147), and the PTO cross bearing (23) is coupled to the PTO yoke (21) or the PIC yoke (31). After the PIC cross bearing (33) is assembled, the shaft yoke (25) or pipe yoke (35) is installed by the yoke finishing supply unit (140) with the PTO yoke (21) or PIC yoke (31) rotated at 90°. It can be easily assembled automatically.

Here, the forward and backward movement of the yoke fixing jig 145 by the hydraulic drive of the second hydraulic cylinder 141 is repeatedly performed for setting at the beginning of operation, and the second hydraulic cylinder support 143 supported by the second cylinder support 143 The height of the hydraulic cylinder 141 is fixed vertically to the rotary joint 120 and the second cylinder support 143 is adjusted to match the height of the axial hole of the PTO yoke 21 or PIC yoke 31 on which the bearing cap 40 is assembled. It is provided, and when the shaft hole portion of the shaft yoke (25) or pipe yoke (35) is aligned with the shaft hole portion of the PTO yoke (21) or PIC yoke (31) by advancing the yoke fixing jig (145), the bearing cap assembly It is preferable that another pair of bearing caps 40 are press-fitted into the axial hole portion by 130.

After the work in the yoke finishing supply unit 140 is completed, the assembly process returns to the beginning and places another PTO yoke 21 or PIC yoke 31 on the rotary joint 120 to repeat the above processes. do.

As shown in FIGS. 7 and 8, the automatic welding unit 200 is connected to the universal joint assembly unit 100 through the transfer unit 300 and includes a welding workbench 210 forming a foundation, and a welding workbench. A first fixing jig 220 is provided on one side of (210) to fix the universal joint 20 on the power withdrawal side and the spline shaft 50, and a universal joint on the power input side is provided on the other side of the welding work table 210. (30) and a second fixing jig 230 that ensures that the joint pipe 60 is fixed and is slid away from or close to the first fixing jig 220 to achieve a zero-point adjustment setting, and a first fixing jig ( 220) and a rotation drive unit 240 connected to the second fixing jig 230 and providing driving force to rotate the first fixing jig 220 and the second fixing jig 230, the rotation drive unit 240 and the first It is provided between the fixing jig 220 and the rotation drive unit 240 and the second fixing jig 230, so that the driving force of the rotation drive unit 240 is transferred to the first fixing jig 220 and the second fixing jig 230. One side of the transmission assembly 250 to be transmitted, the spline shaft 50 and the joint pipe 60 rotated by the first fixing jig 220 and the second fixing jig 230 at the upper part of the welding work table 210. It includes a welding portion 260 that is provided so that the circumference of the connection portion is welded while the spline shaft 50 and the joint pipe 60 are rotated.

Accordingly, the spline shaft 50 is welded and joined to the universal joint 20 on the power withdrawal side, the joint pipe 60 is welded and joined to the universal joint 30 on the power input side, and the joint pipe (60) is connected to the spline shaft 50. 60) are welded and joined simultaneously on the same axis by the automatic welding unit 200, thereby shortening the time required for welding work, improving welding quality, lowering operator fatigue, and improving welding work. It becomes easier and the welding work environment can be improved.

As shown in FIG. 8, the welding workbench 210 is an agricultural machine in which the universal joint 20 on the power withdrawal side, the spline shaft 50, the joint pipe 60, and the universal joint 30 on the power input side are welded and joined to each other. A plurality of frame members are provided along the longitudinal direction to form the power transmission mechanism 10.

As shown in FIGS. 7 and 8, the first fixing jig 220 is provided on a main shaft 221 provided on one upper side of the welding work table 210, and at the tip of the main shaft 221, and is provided on the power extraction side universal It includes a first fixing chuck 223 to which the joint 20 and the spline shaft 50 are fixed.

At this time, as shown in FIG. 9, between the spline shaft 50 and the joint pipe 60, a spline shaft 50 having a plurality of spline key grooves formed on the outer circumferential surface is surrounded from the outside and a plurality of keys are formed on the inner circumferential surface. The power extraction side universal joint 20 and the spline shaft 50 are fixed to the first fixing jig 220 so that a spline socket 70 in which grooves are formed and engaged with the spline key grooves of the spline shaft 50 is provided. After this, the spline socket 70 is inserted into the spline shaft 50 so that the spline socket 70 surrounds the spline shaft 50.

As shown in FIGS. 7 and 8, the second fixing jig 230 is spaced apart from the first fixing jig 220 on the other upper side of the welding work table 210 and moves toward the first fixing jig 220. A driven shaft 231 provided to enable access or separation, a second fixing chuck 233 provided at the tip of the driven shaft 231 and to which the power inlet side universal joint 30 and the joint pipe 60 are fixed, A welding hydraulic cylinder 235 provided at the rear of the driven shaft 231 at the top of the welding work table 210 and providing a hydraulic driving force that causes the driven shaft 231 to approach or move away from the first fixing jig 220, A lead screw 237 is connected to the driven shaft 231 and the welding hydraulic cylinder 235 and transmits a driving force to move the driven shaft 231 and the welding hydraulic cylinder 235 back and forth, and is connected to the lead screw 237. A reduction motor 238 that provides driving force to the lead screw 237 to move the driven shaft 231 and the welding hydraulic cylinder 235 forward and backward, and the forward and backward movement of the driven shaft 231 on the upper surface of the welding worktable 210. It is provided along the path to support the driven shaft 231 and includes a second LM guide 239 that guides the forward and backward movement of the driven shaft 231.

Accordingly, when the driven shaft 231 and the welding hydraulic cylinder 235 are moved at a relatively large moving distance, the control unit 400 controls the reduction motor 238 to drive the lead screw 237 connected to the reduction motor 238. Through this, the driven shaft 231 and the welding hydraulic cylinder 235 can be moved forward and backward, and when only the driven shaft 231 is moved at a relatively short moving distance, the control unit 400 controls the welding hydraulic cylinder 235. Thus, the driven shaft 231 can be moved forward and backward toward the first fixing jig 220, and the forward and backward movement of the driven shaft 231 can be stably achieved by the second LM guide 239.

At this time, the power extraction side universal joint 20 and the spline shaft 50 are fixed to the first fixing chuck 223 of the first fixing jig 220, and the second fixing chuck of the second fixing jig 230 ( After the power inlet side universal joint 30 and the joint pipe 60 are fixed to 233), the power output side universal joint 20 and the spline shaft 50, the power inlet side universal joint 30 and the joint pipe ( 60) is moved forward so that the driven shaft 231 is in close contact with each other by driving the reduction motor 238 or the welding hydraulic cylinder 235, so that the power extraction side universal joint 20 and the spline shaft 50, power It is desirable to bring the inlet side universal joint 30 and the joint pipe 60 into close contact with each other.

As an embodiment of the present invention, the power withdrawal side universal joint 20 and the spline shaft 50 are fixed to the first fixed chuck 223, and the power input side universal joint 30 is fixed to the second fixed chuck 233. And the joint pipe 60 is described as being fixed, but as another embodiment of the present invention, only the power extraction side universal joint 20 is fixed to the first fixing chuck 223, and the second fixing chuck 233 is fixed to the universal joint 20. The power inlet side universal joint 30, joint pipe 60, and spline shaft 50 may be fixed together.

Here, the pipe yoke 35 of the universal joint 30 on the power inlet side moves rotatably with respect to the PIC yoke 31, and the shaft yoke 25 of the universal joint 20 on the power takeout side also moves with respect to the PTO yoke 21. Since it is rotatably movable, the power extraction side universal joint can be used even after the shaft yoke 25 and the pipe yoke 35 are bent and conveniently fixed to the first fixed chuck 223 and the second fixed chuck 233, respectively. (20), the spline shaft 50, the joint pipe 60, and the power inlet side universal joint 30 can all be easily rearranged in line on the concentric axis on the same axis.

As shown in FIGS. 7 and 8, the rotation drive unit 240 is provided to be connected to the first fixing jig 220 and the second fixing jig 230 on one side of the welding work table 210, and is connected to the first fixing jig 230. (220) and the second fixing jig 230 are rotated, and the power withdrawal side universal joint 20, spline shaft 50, joint pipe 60, and power input side universal joint 30 fixed to them are aligned on the same axis. It provides driving force to rotate at the same speed.

As shown in FIGS. 7 and 8, the transmission assembly 250 is a timing belt provided between the rotation drive unit 240 and the main shaft 221 and between the rotation drive unit 240 and the driven shaft 231, respectively. (251) and the timing belt 251 provided between the rotation drive unit 240 and the driven shaft 231 are connected to the electronic clutch shaft 253 to transmit the driving force of the rotation drive unit 240 to the driven shaft 231. ) and the hexagonal rotary pipe 255 that is connected on the same axis to the electronic clutch shaft 253 and transmits the rotational driving force to the driven shaft 231, and between the electronic clutch shaft 253 and the hexagonal rotary pipe 255. It is provided in and includes an electronic clutch box 257 that intermittently transmits the rotational driving force to the hexagonal rotary pipe 255.

Accordingly, the spline shaft 50 and the joint pipe 60 are inserted between the universal joint 20 on the power withdrawal side and the universal joint 30 on the power input side, and the zero point is adjusted in advance through a sensor before welding their circumferences. By setting the setting so that welding is carried out at the same time and at the same location by the electric assembly 250, the concentricity can be improved to minimize vibration and eccentricity during welding, welding deformation can be minimized, and the universal joint on the power extraction side can be used. (20), after the welding around the interconnection portions of the spline shaft 50, the joint pipe 60 and the power inlet side universal joint 30 is completed by the welding portion 260 while they are rotated, the electronic clutch box 257 ) The electronic clutch within is separated and the zero point adjustment setting to start the next task can be made anew each time, and the backlash phenomenon occurs when the rotational driving force is transmitted by the timing belt (251) and the hexagonal rotary pipe (255). This can be minimized, and the 0-point adjustment setting is made every time before welding, so that the PTO cross bearing (23) and PIC cross bearing (33) assembled on the power take-out side universal joint (20) and the power take-in side universal joint (30) ), the operating angle becomes the same, which reduces vibration and noise through quiet rotation and power transmission, and extends the lifespan of the bearing.

As shown in FIGS. 8 and 9, the welding portion 260 includes the power extraction side universal joint 20, the spline socket 70, the spline socket 70 and the joint pipe 60, and the joint pipe 60. A welding table provided vertically upward at three locations on the upper surface of the welding work table 210 so that the circumference of the interconnection between the universal joints 30 on the power inlet side are simultaneously welded while they are rotated, a welding holder provided at the top of the welding table, and , including a welding torch that is detachably provided in the welding holder.

Here, the welding holder of the welding portion 260 is provided so that its position and angle can be adjusted by control of the control unit 400, and it is desirable to fix it with a stopper when the position and angle of the welding holder are adjusted.

As shown in FIG. 1, the transfer unit 300 is configured such that the power withdrawal side universal joint 20 and the power input side universal joint 30 assembled in the universal joint assembly unit 100 are connected to the automatic welding unit 200. It includes a conveyor belt provided between the universal joint assembly unit 100 and the automatic welding unit 200 to be automatically transferred under the control of the control unit 400.

Meanwhile, as shown in FIG. 1, the manufacturing device of the agricultural machinery power transmission mechanism according to the present invention is connected to the universal joint assembly unit 100, the automatic welding unit 200, and the transfer unit 300 to control their operations. It is desirable to further include a control unit 400.

Accordingly, in the universal joint assembly unit 100, the universal joint 20 on the power withdrawal side is automatically assembled under the control of the control unit 400, or the universal joint 30 on the power input side is automatically assembled under the control of the control unit 400. It can be assembled, and the universal joint 20 on the power withdrawal side and the universal joint 30 on the power input side are automatically transferred to the automatic welding unit 200 through the transfer unit 300 under the control of the control unit 400. This can be done so that the agricultural machinery power transmission mechanism 10 is automatically welded and joined in the automatic welding unit 200 under the control of the control unit 400.

Although the technical aspect has been described above and in the accompanying drawings, the technical idea of the present invention is for explanation purposes only and is not intended to be limiting, and those skilled in the art will understand the present invention. It will be understood that various modifications and changes can be made to the technical idea of the present invention without departing from the technical scope described in the claims, which will be described later.

100: Universal joint assembly unit 110: Assembly table
120: rotary joint 130: bearing cap assembly
131: first hydraulic cylinder 133: first cylinder support
135: cap holder 136: guide bush
137: Cap support 138: Holder spring
140: Yoke finish supply unit 141: Second hydraulic cylinder
143: Second cylinder support 145: Yoke fixing jig
147: 1st LM guide 200: automatic welding unit
210: welding workbench 220: first fixing jig
221: Main axis 223: First fixed chuck
230: Second fixing jig 231: Driven shaft
233: second fixing chuck 235: welding hydraulic cylinder
237: lead screw 238: reduction motor
239: 2nd LM guide 240: rotation driving unit
250: Electrical assembly 251: Timing belt
253: Electronic clutch axis 255: Hexagonal rotary pipe
257: Electronic clutch box 260: Welding part
300: transfer unit 400: control unit

Claims (3)

In the manufacturing device of the agricultural machinery power transmission mechanism (10), which is provided between agricultural machinery and the towing vehicle and transmits the driving force of the towing vehicle to the agricultural machinery,
The PTO yoke 21, PTO cross bearing 23, and shaft yoke 25, which are provided on one side and form the universal joint 20 on the power extraction side of the agricultural machinery power transmission mechanism 10, are assembled, and the agricultural machinery power transmission mechanism 10 is assembled. A universal joint assembly unit (100) for assembling the PIC yoke (31), PIC cross bearing (33), and pipe yoke (35) forming the universal joint (30) on the power inlet side of (10),
A spline shaft 50 is provided on the other side and assembled in the universal joint assembly unit 100. A spline shaft 50 is provided on the power output side universal joint 20, a joint pipe 60 is provided on the power input side universal joint 30, and the spline shaft 50 is provided on the other side. ), an automatic welding unit 200 that automatically welds the joint pipes 60 simultaneously on the same axis,
The power withdrawal side universal joint 20 and the power input side universal joint 30 are provided between the universal joint assembly unit 100 and the automatic welding unit 200 and assembled in the universal joint assembly unit 100. A manufacturing device for an agricultural machinery power transmission mechanism, comprising a transfer unit (300) that is transferred to the automatic welding unit (200). According to paragraph 1,
The universal joint assembly unit 100,
An assembly table 110 forming the foundation,
A rotary joint 120 for rotatably supporting the PTO yoke 21 or PIC yoke 31 provided on the assembly table 110 and mounted upward,
The rotary is connected to the left and right sides of the rotary joint 120 so that the PTO cross bearing 23 is coupled to the PTO yoke 21 mounted on the rotary joint 120 or the PIC cross bearing 33 is coupled to the PIC yoke 31. A pair of bearing cap assemblies (130) that approach or are spaced apart from the joint (120) and press-fit the bearing cap (40) to the outside of the PTO yoke (21) or PIC yoke (31) using an instantaneous blow method,
It is provided at the rear of the rotary joint 120 on the assembly table 110 and the PTO cross bearing 23 is coupled to the PTO yoke 21, or after the PIC cross bearing 33 is coupled to the PIC yoke 31, the PTO The shaft yoke 25 or the pipe yoke ( 35) is fixed and includes a yoke finish supply part 140 provided to approach or be spaced apart from the rotary joint 120. According to claim 1 or 2,
The automatic welding unit 200,
A welding workbench (210) connected to the universal joint assembly unit (100) through the transfer unit (300) and forming a foundation,
A first fixing jig 220 provided on one side of the welding work table 210 to fix the power extraction side universal joint 20 and the spline shaft 50,
It is provided on the other side of the welding work table 210 to fix the universal joint 30 and the joint pipe 60 on the power inlet side, and is moved by sliding away from or close to the first fixing jig 220 and has a zero-point adjustment setting. A second fixing jig 230 to achieve this,
A rotation drive unit 240 connected to the first fixing jig 220 and the second fixing jig 230 and providing driving force to rotate the first fixing jig 220 and the second fixing jig 230,
It is provided between the rotation driver 240 and the first fixing jig 220 and between the rotation driver 240 and the second fixing jig 230, so that the driving force of the rotation driver 240 is the first fixing jig. An electric assembly 250 that is transmitted to the fixing jig 220 and the second fixing jig 230,
The spline shaft 50 is rotated by the first fixing jig 220 and the second fixing jig 230 at the top of the welding work table 210, and is provided on one side of the joint pipe 60 to form a spline shaft 50. and a welding portion 260 that allows the circumference of the connecting portion to be welded while the joint pipe 60 is rotated.