Automatic conveying and cutting method for conveying roller way hubs

Abstract

The invention discloses an automatic conveying and cutting method for a conveying roller way hub, which comprises the following steps of: (1) carrying a hub blank subjected to gravity casting onto a roller way conveying assembly line by a carrying robot for conveying; (2) the hub blank is conveyed to an upper conveying mechanism of a middle conveying frame of the roller way conveying assembly line; (3) a clamping roller body installed in an upper conveying mechanism of the middle conveying frame moves to clamp and fix the hub blank; (4) the upper conveying mechanism is turned upwards by 90 degrees, so that the hub blank is in a vertical shape; (5) the cutting device with the position adjusted is used for cutting the sprue part, needing to be cut, of the hub blank; (6) the hub blank is rotated, and the part, needing to be cut, of the edge of the hub blank is cut off along the circumference of the hub blank; the automatic cutting device can automatically cut a sprue part of a hub blank when the hub blank is conveyed on a roller way conveying assembly line, realizes automatic continuous processing, and is good in effect and high in efficiency.

Description

Technical field:

[0001] The present invention relates to the technical field of wheel hub processing equipment, and more particularly to an automatic conveying and cutting method for a conveying roller wheel hub. Background technology:

[0002] In the current sequence of automobile wheel manufacturing production processes, there is a manufacturing process called gravity casting and tilt casting. Due to process reasons, these production methods will produce problems with gate accessories left behind by gravity and tilt casting processes. These accessories need to be cut and disposed of in time before the line is changed to facilitate the processing and flow of the product in the next process.

[0003] The existing mechanical saw wheel cutting method (riser cutting gate) can neither be effectively integrated into the assembly line, nor is it suitable for application in a single-machine operation mode, requiring manual or robotic handling and line transfer, resulting in a large waste of handling cycles and production costs. Its low efficiency is one of the common problems of riser machine applications, and it is not suitable for the modern automotive wheel manufacturing industry. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic conveying and cutting method for a conveyor roller hub, which can automatically cut the gate part of the hub blank when it is conveyed on a roller conveyor line, thereby realizing automated continuous processing with good effect and high efficiency.

[0005] The solution of the present invention to the technical problem is:

[0006] A method for automatically conveying and cutting a conveyor roller hub comprises the following steps:

[0007] (1) The wheel hub blank completed by gravity casting is moved to the roller conveyor line for transportation by a handling robot;

[0008] (2) The wheel hub blank is transported to the upper conveying mechanism of the intermediate conveying frame of the roller conveyor line;

[0009] (3) The clamping roller installed in the upper conveying mechanism of the intermediate conveying frame moves to clamp and fix the hub blank;

[0010] (4) The upper conveying mechanism is turned upward by 90 degrees, so that the wheel hub blank is in a vertical shape;

[0011] (5) The cutting device with the position adjusted is directed toward the gate portion of the wheel hub blank to be cut;

[0012] (6) The wheel hub blank is rotated, and the portion of the edge to be cut is cut along the circumference of the wheel hub blank;

[0013] (7) The cut waste falls onto the material receiving trolley below;

[0014] (8) The upper conveying mechanism flips back downward;

[0015] (9) After the upper conveying mechanism returns to its original position, the positioning block is moved and locked, the clamping roller body returns to its original position, and the middle conveying frame runs to convey the processed wheel hub blank to the rear conveying frame of the roller conveyor line for further conveying to complete the processing.

[0016] The roller conveyor line includes a front conveyor frame, an intermediate conveyor frame and a rear conveyor frame, wherein the front end of the intermediate conveyor frame is close to the rear end of the front conveyor frame, and the rear end of the intermediate conveyor frame is close to the front end of the rear conveyor frame;

[0017] The front conveying frame and the rear conveying frame both include a frame, and a plurality of motorized rollers are provided on the upper portion of the frame, and the connecting shafts at the left and right ends of the motorized rollers are fixed to the left and right transverse beams of the frame;

[0018] The intermediate conveying frame includes an intermediate frame body, and the top surfaces of the left and right transverse beams of the intermediate frame body are pressed against the bottom surfaces of the left and right side beams extending forward and backward of the upper conveying mechanism;

[0019] The upper conveying frame includes two side beams, and multiple electric roller bodies are arranged between the two side beams. The connecting shafts at the left and right ends of the electric roller bodies are fixed on the two side beams. A rotating connecting block is fixed on the middle outer wall of the left side beam. Two connecting plates are fixed on the left side wall of the horizontal beam on the left side of the middle frame body. An intermediate rotating shaft is movably connected between the two connecting plates through bearings. The rotating connecting block is fixed on the intermediate rotating shaft. A rotating servo motor is fixed on the outer wall of one of the connecting plates, and the rotating servo motor drives the intermediate rotating shaft to rotate.

[0020] The top ends of the motorized rollers of the front conveying frame, the middle conveying frame and the rear conveying frame are on the same horizontal plane.

[0021] A bottom fixing plate is fixed between the front and rear of the middle of the lower part of the two side beams of the upper conveying frame, and a double-head pushing cylinder is fixed to the middle of the top surface of the bottom fixing plate. The ends of the two push rods of the double-head pushing cylinder are fixed with pushing blocks, and the top of the pushing blocks is fixed with a connecting frame. The connecting frame is movably connected to a clamping roller body through a hinge shaft. The connecting frame and the clamping roller body are inserted between the corresponding two electric roller bodies, and the upper part thereof extends out of the top of the electric roller body and corresponds to the wheel hub blank placed on the upper conveying frame.

[0022] A transverse guide rod is provided above the bottom fixed plate, and both ends of the transverse guide rod are fixed on the two side beams. The transverse guide rod is inserted into the transverse guide through hole formed on the pushing block, and the outer side wall of the transverse guide rod is close to the inner side wall of the corresponding transverse guide through hole.

[0023] A rotating drive motor is fixed on the outer side of the connecting frame, and an upper protective shell is fixed on the top plate of the connecting frame. The top end of the output shaft of the rotating servo motor extends out of the top plate of the connecting frame and is fixed with a driving gear. The middle part of the top plate of the connecting frame is movably connected with an intermediate transition gear through a hinge shaft, and the intermediate transition gear is meshed with the driving gear. The hinge shaft fixed at the clamping roller body is movably connected to the connecting frame through a bearing, and its top extends out of the top plate of the connecting frame and is fixed with a transmission gear, which is meshed with the intermediate transition gear. The driving gear, the intermediate transition gear and the transmission gear are in the upper protective shell, and the bottom of the hinge shaft of the intermediate transition gear is movably connected to the top plate of the connecting frame through a bearing, and the top of the hinge shaft of the intermediate transition gear is movably connected to the top plate of the upper protective shell through a bearing. The top of the hinge shaft at the clamping roller body is movably connected to the top plate of the upper protective shell through a bearing.

[0024] A clamping annular groove is formed on the middle outer wall of the clamping roller body. The top surface of the clamping annular groove is an upper conical wall surface and the lower part is a lower conical wall surface. The bottom of the side wall at the bottom rim of the hub blank rests on the lower conical wall surface, and the top surface of the bottom rim of the hub blank rests on the upper conical wall surface.

[0025] A sensing block is fixed on the outer side wall of the pushing block, and proximity sensors are fixedly installed on the left and right parts of the top surface of the bottom fixing plate, and the sensing ends of the proximity sensors correspond to the corresponding sensing blocks.

[0026] The top inner walls of the two side beams are formed with a reinforcement portion extending horizontally inward, the bottom surface of the reinforcement portion is fixed with a reinforcement frame, the outer end of the reinforcement frame is fixed with a limiting block, and the outer end surface of the limiting block is fixed with an anti-collision layer, which faces the side wall of the corresponding rotary drive motor.

[0027] The cutting device includes a vertical frame fixed on the rear ground on the left side of the middle frame body, and a left and right moving mechanism is installed on the upper part of the rear wall surface of the rear wall plate of the vertical frame, and a lifting mechanism is fixed on the rear wall surface of the adjustment block of the vertical left and right moving mechanism, and an electric push rod is fixed on the rear wall surface of the lifting block of the lifting mechanism, and a pushing plate is fixed on the end of the push rod of the electric push rod, and a guide rod is fixed on the front wall surface of the pushing plate, and the guide rod is inserted in the guide sleeve body fixed on the rear wall surface of the lifting block, and two connecting plates are fixed on the rear wall surface of the pushing plate, and the two ends of the rotating shaft are movably connected to the two connecting plates through bearings, and the cutting wheel is fixed on the rotating shaft, and a rotating motor is fixed on the outer wall of one of the connecting plates, and the output shaft of the rotating motor is a spline shaft, which is inserted in the spline hole at one end of the rotating shaft and drives the rotating shaft to rotate.

[0028] The outstanding effects of the present invention are:

[0029] Compared with the existing technology, it can automatically cut the gate part of the hub blank when it is conveyed on the roller conveyor line, realizing automatic continuous processing with good effect and high efficiency. Description of the drawings:

[0030] Figure 1 It is a partial top view of the roller conveyor line of the present invention;

[0031] Figure 2 yes Figure 1 A partial enlarged view of

[0032] Figure 3 It is a partial structural schematic diagram of the intermediate conveyor frame of the present invention;

[0033] Figure 4 yes Figure 3 A partial enlarged view of

[0034] Figure 5 yes Figure 3 a partial enlarged view of another part;

[0035] Figure 6 This is a schematic diagram of the partial structure of the upper conveyor frame of the middle conveyor frame when it is turned over for cutting;

[0036] Figure 7 It is a schematic diagram of the partial structure of the cutting device;

[0037] Figure 8 yes Figure 7 Partial top view of the cutting wheel. Specific implementation method:

[0038] For example, see Figures 1 to 8 As shown ( Figures 1 to 8 A method for automatically conveying and cutting a conveyor roller hub includes the following devices during the processing;

[0039] The roller conveyor line 10 includes a front conveyor frame 11, an intermediate conveyor frame 12, and a rear conveyor frame 13. The front end of the intermediate conveyor frame 12 is close to the rear end of the front conveyor frame 11, and the rear end of the intermediate conveyor frame 12 is close to the front end of the rear conveyor frame 13.

[0040] The front conveying frame 11 and the rear conveying frame 13 each include a frame 14, and a plurality of motorized rollers 141 are provided on the upper portion of the frame 14. The connecting shafts at the left and right ends of the motorized rollers 141 are fixed to the left and right transverse beams of the frame 14;

[0041] The intermediate conveying frame 12 includes an intermediate frame body 121, and the top surfaces of the left and right transverse beams of the intermediate frame body 121 are pressed against the bottom surfaces of the left and right side beams 21 extending forward and backward of the upper conveying mechanism 20;

[0042] The upper conveying frame 20 includes two side beams 21, and a plurality of electric roller bodies 141 are arranged between the two side beams 21. The connecting shafts at the left and right ends of the electric roller body 141 are fixed on the two side beams 21. A rotating connecting block 22 is fixed on the middle outer wall of the side beam 21 on the left side. Two connecting plates 122 are fixed on the left side wall of the horizontal beam on the left side of the intermediate frame body 121. An intermediate rotating shaft is movably connected between the two connecting plates 122 through a bearing. The rotating connecting block 22 is fixed on the intermediate rotating shaft. A rotating servo motor 123 is fixed on the outer wall of one of the connecting plates 122. The output shaft of the rotating servo motor 123 is a spline shaft, which is inserted into the spline hole at one end of the intermediate rotating shaft and drives the intermediate rotating shaft to rotate.

[0043] The top ends of the motorized roller bodies 141 of the front conveying frame 11 , the middle conveying frame 12 and the rear conveying frame 13 are on the same horizontal plane.

[0044] The front conveying frame 11 , the middle conveying frame 12 and the rear conveying frame 13 are arranged vertically from front to rear.

[0045] Among them, side connecting blocks are fixed on the outer side walls of the rear parts of the two side beams 21 of the upper conveying frame 20, and side vertical plates are fixed on the top surfaces of the two corresponding side connecting blocks on the left and right. The middle part of the side vertical plates is formed with an elongated through slot 90 extending front and back. End plates are fixed on the front and rear parts of the outer side walls of the side vertical plates, and the adjusting screws extending front and back are movably connected to the two end plates through bearings. One end of the adjusting screw extends out of the corresponding end plate and is fixed with a rotating part. The moving block is screwed on the adjusting screw, and the moving block is inserted into the corresponding elongated through slot 90. Its top and bottom surfaces are tightly against the top and bottom surfaces of the elongated through slot 90. The inner end of the moving block extends out of the inner side wall of the side vertical plate and is fixed with a connecting plate. The infrared transmitter 5 and the infrared receiver 6 are respectively fixed on the two corresponding connecting plates on the left and right. The infrared transmitter 5 irradiates infrared rays to the receiving end of the infrared receiver 6. It can be seen that the position can be adjusted according to the different specifications of the wheel hub blank 100. By rotating the adjusting screw, the front and rear positions of the infrared transmitter 5 and the infrared receiver 6 can be changed, so that it can be ensured that when the wheel hub blank 100 is sensed, it is in the middle of the intermediate conveyor 12;

[0046] A bottom fixing plate 23 is fixed between the front and rear of the middle of the lower part of the two side beams 21 of the upper conveying frame 20, and a double-head pushing cylinder 24 is fixed to the middle of the top surface of the bottom fixing plate 23. The ends of the two push rods of the double-head pushing cylinder 24 are fixed with pushing blocks 25, and the top of the pushing block 25 is fixed with a connecting frame 26. The connecting frame 26 is movably connected to the clamping roller body 31 through a hinge shaft. The connecting frame 26 and the clamping roller body 31 are inserted between the corresponding two electric roller bodies 141, and the upper part thereof extends out of the top of the electric roller body 141 and corresponds to the wheel hub blank 100 placed on the upper conveying frame 20.

[0047] Furthermore, a transverse guide rod 27 is provided above the bottom fixing plate 23, and both ends of the transverse guide rod 27 are fixed on the two side beams 21. The transverse guide rod 27 is inserted into the transverse guide through hole formed on the push block 25, and the outer side wall of the transverse guide rod 27 is close to the inner side wall of the corresponding transverse guide through hole.

[0048] A rotary drive motor 28 is fixed on the outer side of the connecting frame 26, and an upper protective shell 261 is fixed on the top plate of the connecting frame 26. The top end of the output shaft of the rotary drive motor 28 extends out of the top plate of the connecting frame 26 and is fixed with a driving gear 281. The middle part of the top plate of the connecting frame 26 is movably connected to an intermediate transition gear 282 through a hinge shaft. The intermediate transition gear 282 is meshed with the driving gear 281. The hinge shaft fixed at the clamping roller body 31 is movably connected to the connecting frame 26 through a bearing, and its top extends out of the top plate of the connecting frame 26. A transmission gear 32 is fixed thereto, which meshes with the intermediate transition gear 282. The driving gear 281, the intermediate transition gear 282 and the transmission gear 32 are located in the upper protective shell 261. The bottom of the hinge shaft of the intermediate transition gear 282 is movably connected to the top plate of the connecting frame 26 through a bearing, and the top of the hinge shaft of the intermediate transition gear 282 is movably connected to the top plate of the upper protective shell 261 through a bearing. The top of the hinge shaft at the clamping roller body 31 is movably connected to the top plate of the upper protective shell 261 through a bearing.

[0049] A clamping annular groove 33 is formed on the middle outer wall of the clamping roller body 31. The top surface of the clamping annular groove 33 is an upper conical wall surface, and the lower part is a lower conical wall surface. The upper conical wall surface is 10° to 15° (12° in this embodiment), and the lower conical wall surface is 65° to 75° (72° in this embodiment). The above angles are adopted so that the bottom of the side wall at the bottom rim of the corresponding hub blank 100 rests on the lower conical wall surface, and the top surface at the bottom rim of the hub blank 100 rests on the upper conical wall surface. When in use, the same hub blank 100 is suitable for a clamping roller body 31 of one specification. When replacing another batch of hub blanks 100 of another specification, the clamping roller body 31 can be replaced so that it can meet the clamping and fixation requirements of the corresponding hub blank 100.

[0050] A sensing block 251 is fixed on the outer wall of the pushing block 25 , and proximity sensors 1 are fixedly mounted on the left and right parts of the top surface of the bottom fixing plate 23 , with the sensing ends of the proximity sensors 1 corresponding to the corresponding sensing blocks 251 .

[0051] The top inner side walls of the two side beams 21 are formed with a reinforcement portion 211 extending horizontally inward, and a reinforcement frame 212 is fixed to the bottom surface of the reinforcement portion 211. A limiting block 213 is fixed to the outer end of the reinforcement frame 212, and an anti-collision layer 214 is fixed to the outer end surface of the limiting block 213, which faces the side wall of the corresponding rotary drive motor 28.

[0052] Furthermore, a left limit support frame 124 is fixed on the outer wall of the left leg of the intermediate frame body 121, and a first sensor 125 and a first limit block 126 are fixed on the top surface of the top plate of the left limit support frame 124. The top surface of the first limit block 126 is higher than the sensing part at the top of the first sensor 125, and the left side wall of the rotating connecting block 22 corresponds to the sensing part of the first sensor 125 and the top surface of the first limit block 126.

[0053] like Figure 7 and Figure 8 As shown, the cutting device includes a vertical frame 60 fixed on the rear ground on the left side of the intermediate frame 121, and a left and right moving mechanism 61 is installed on the upper part of the rear wall surface of the rear wall plate of the vertical frame 60, and a lifting mechanism 62 is fixed on the rear wall surface of the adjusting block of the left and right moving mechanism 61, and an electric push rod 63 is fixed on the rear wall surface of the lifting block of the lifting mechanism 62, and a pushing plate 65 is fixed on the end of the push rod of the electric push rod 63, and a guide rod is fixed on the front wall surface of the pushing plate 65, and the guide rod is inserted into the guide sleeve fixed on the rear wall surface of the lifting block, and two connecting plates are fixed on the rear wall surface of the pushing plate 65, and the two ends of the rotating shaft are movably connected to the two connecting plates by bearings, and the cutting wheel 66 is fixed on the rotating shaft, and a rotating motor is fixed on the outer wall of one of the connecting plates. The output shaft of the rotating motor is a spline shaft, which is inserted into the spline hole at one end of the rotating shaft and drives the rotating shaft to rotate.

[0054] The gate of the hub blank 100 of this embodiment is located at the edge of its top end surface.

[0055] Furthermore, the left-right moving mechanism 61 includes connecting plates fixed to the left and right sides of the middle portion of the rear wall surface of the rear wall plate of the vertical frame 60, and the two ends of the adjusting screws extending left and right are movably connected to the two connecting plates through bearings. A lateral moving servo motor 611 is fixed to the outer wall of one of the connecting plates, and the output shaft of the lateral moving servo motor 611 is a spline shaft, which is inserted into the spline hole at one end of the adjusting screw and drives the adjusting screw to rotate. The adjusting block is screwed to the lateral moving screw, and a plurality of guide rods are fixed between the two connecting plates. The guide rods are inserted into the corresponding lateral guide through holes on the adjusting block. The vertical connecting plate of the lifting mechanism 62 is fixed to the rear wall surface of the adjusting block.

[0056] The lifting mechanism 62 includes a vertical connecting plate, and fixed plates are fixed on the rear wall surfaces of the upper and lower parts. The two ends of the vertically extending vertical adjustment screw are movably connected to the two fixed plates through bearings. A lifting servo motor 621 is fixed on the outer wall of one of the fixed plates. The output shaft of the lifting servo motor 621 is a spline shaft, which is inserted into the spline hole at one end of the vertical adjustment screw to drive the vertical adjustment screw to rotate. The lifting block is screwed on the vertical adjustment screw. A plurality of vertical guide rods are fixed between the two fixed plates. The vertical guide rods are inserted into the vertical guide through holes formed on the lifting block, and their outer walls are tightly attached to the inner walls of the vertical guide through holes.

[0057] The bottom of the side beam 21 on the right side of the upper conveying frame 20 is formed with a bending plate extending horizontally inward, and the bottom surface of the bending plate is pressed against the top surface of the transverse beam on the right side of the intermediate frame 121. The transverse beam on the right side is a hollow beam, and a transverse pushing cylinder 70 is fixed on the top surface of its inner cavity. A positioning block 71 is fixed on the push rod of the transverse pushing cylinder 70. The positioning block 71 is inserted into the transverse guide groove formed on the top surface of the inner cavity, and the front and rear side walls of the positioning block 71 are close to the inner side wall of the transverse guide groove. The upper part of the positioning block 71 extends out of the transverse guide groove and the middle groove of the bending plate, and a transverse extension part 72 is formed on the left side wall of its top, and the bottom surface of the transverse extension part 72 is pressed against the bottom surface of the bending plate.

[0058] The material receiving trolley 40 is located directly below the vertical wheel hub blank 100 .

[0059] All the oil cylinders in this embodiment are connected to the control valves in the hydraulic system through connecting pipes. The hydraulic system includes an oil tank, an oil pump and a control valve. It is a conventional structure and will not be described in detail here. All the electrical components in this embodiment are electrically connected to the control host through electrical connecting lines and are controlled by the control host. This is a conventional control structure and will not be described in detail here.

[0060] When this embodiment is used, it includes the following steps:

[0061] (1) The hub blank 100 completed by gravity casting is moved by a handling robot (which can be directly grasped by a six-axis robot, which is an existing conventional equipment and will not be described in detail here) to the motorized roller body 141 of the front conveying frame 11 of the roller conveyor line 10, and is transported backward by the operation of the motorized roller body 141;

[0062] (2) The wheel hub blank 100 is transported to the motorized roller 141 of the upper conveying mechanism 20 of the middle conveying frame 12 of the roller conveyor line 10. As the motorized roller 141 is transported backward, it blocks the infrared rays of the infrared transmitter 5 from being irradiated on the infrared receiver 6, indicating that the wheel hub blank 100 has been transported to the right position. At this time, the control host controls all the motorized rollers 141 on the roller conveyor line 10 to stop running.

[0063] (3) The clamping rollers 31 installed in the upper conveying mechanism 20 of the intermediate conveying frame 12 move to clamp and fix the hub blank 100. Specifically, the control host obtains the sensing signal of the infrared receiver 6, which does not receive the infrared light of the infrared transmitter 5. The control host controls the corresponding control valve (the solenoid valve in this embodiment) of the hydraulic system to operate, so that the ends of the two push rods of the two double-headed pushing cylinders 24 are retracted (the initial state is that the sensing block 251 fixed on the outer wall of the pushing block 25 is close to the sensing end of the corresponding proximity sensor 1, so that it is sensed, and at the same time, the anti-collision layer 214 presses against the side wall of the corresponding rotary drive motor 28 to limit it), so that the hub blank 100 is clamped at the four clamping rollers 31;

[0064] When its position has a certain deviation, the hub blank 100 can be adjusted to the center position and clamped by the four clamping rollers 31 when clamping and closing them (this process is completed within 3 to 5 seconds);

[0065] (4) After 5 seconds, the control host controls the corresponding rotary servo motor 123 to operate, causing the upper conveyor frame 20 to flip upward until the left side wall of the rotating connecting block 22 is sensed by the sensing part of the first sensor 125 and pressed against the top surface of the first limit block 126. At this time, the upper conveying mechanism 20 flips upward by 90°, causing the wheel hub blank 100 to be vertical. At the same time, the first sensor 125 (which is a proximity sensor) transmits a sensing signal to the control host, indicating that it has rotated into place;

[0066] (5) The control host controls the lateral movement servo motor 611 and the lifting servo motor 621 to adjust the left and right and up and down positions of the cutting wheel 66, and pushes the electric push rod 63 to move the cutting wheel 66 to the gate connection of the hub blank 100 to cut it (the left and right and front and back positions of the cutting wheel 66 are adjusted by manually controlling the lateral movement servo motor 611 and the lifting servo motor 621. When the same batch of hub blanks 100 are processed, no further adjustment is required after the first adjustment is completed. The moving position of the cutting wheel 66 pushed by the electric push rod 63 is also stored after the first adjustment is completed. After the processing is completed, the push rod of the electric push rod 63 needs to return to its position. When the second hub blank 100 is moved over for processing, it is extended to the first adjusted position and then cut).

[0067] (6) The rotary drive motor 28 is operated to rotate the clamping roller 31, driving the hub blank 100 to rotate, so that the cutting wheel 66 can cut off the portion of the edge of the hub blank 100 that needs to be cut along the circumference of the hub blank 100, wherein the cutting wheel 66 is operated by the rotary motor to achieve rotation;

[0068] (7) The cut waste falls onto the material receiving trolley 40 below;

[0069] (8) Then, the rotary servo motor 123 is operated, and the upper conveying mechanism 20 is turned downward and returned to its original position;

[0070] (9) After the upper conveying mechanism 20 returns to its original position, the positioning block 71 is moved to the left by pushing the push rod of the oil cylinder 70 laterally, so that the bottom surface of the lateral extension portion 72 is pressed against the bottom surface of the bending plate to achieve locking. Then, the clamping roller body 31 returns to its original position, and all the electric roller bodies 141 run to convey the processed wheel hub blank 100 to the rear conveying frame 13 of the roller conveyor line 10 for further conveying to complete the processing.

[0071] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention are deemed to fall within the scope of protection of the present invention.

Claims

1. A method for automatically conveying and cutting a conveyor roller hub, characterized in that: It includes the following steps: (1) The hub blank (100) completed by gravity casting is moved by a handling robot to a roller conveying line (10) for transportation; (2) The wheel hub blank (100) is transported to the upper conveying mechanism (20) of the middle conveying frame (12) of the roller conveying line (10); (3) The clamping roller (31) installed in the upper conveying mechanism (20) of the intermediate conveying frame (12) moves to clamp and fix the hub blank (100); (4) The upper conveying mechanism (20) is turned upward by 90 degrees, so that the wheel hub blank (100) is in a vertical shape; (5) The cutting device after position adjustment is directed toward the gate portion of the hub blank (100) to be cut; (6) The wheel hub blank (100) is rotated to cut off the portion of the edge of the wheel hub blank (100) that needs to be cut along the circumference of the wheel hub blank (100); (7) The cut waste falls onto the material receiving trolley (40) below; (8) The upper conveying mechanism (20) turns downward and returns to its original position; (9) After the upper conveying mechanism (20) returns to its original position, the positioning block (50) is moved and locked, the clamping roller body (31) returns to its original position, and the intermediate conveying frame (12) operates to convey the processed wheel hub blank (100) to the rear conveying frame (13) of the roller conveying line (10) for further conveying to complete the processing.

2. The automatic conveying and cutting method for a conveyor roller hub according to claim 1, characterized in that: The roller conveyor line (10) comprises a front conveyor frame (11), an intermediate conveyor frame (12) and a rear conveyor frame (13), wherein the front end of the intermediate conveyor frame (12) is close to the rear of the front conveyor frame (11), and the rear of the intermediate conveyor frame (12) is close to the front end of the rear conveyor frame (13); The front conveying frame (11) and the rear conveying frame (13) both include a frame (14), and a plurality of electric roller bodies (141) are provided on the upper portion of the frame (14), and the connecting shafts at the left and right ends of the electric roller bodies (141) are fixed on the left and right transverse beams of the frame (14); The intermediate conveying frame (12) includes an intermediate frame body (121), and the top surfaces of the left and right transverse beams of the intermediate frame body (121) are pressed against the bottom surfaces of the left and right side beams (21) extending forward and backward of the upper conveying mechanism (20); The upper conveying frame (20) includes two side beams (21), a plurality of electric roller bodies (141) are provided between the two side beams (21), the connecting shafts at the left and right ends of the electric roller bodies (141) are fixed to the two side beams (21), a rotating connecting block (22) is fixed to the middle outer wall of the left side beam (21), two connecting plates (122) are fixed to the left side wall of the left transverse beam of the intermediate frame (121), an intermediate rotating shaft is movably connected between the two connecting plates (122) through a bearing, the rotating connecting block (22) is fixed to the intermediate rotating shaft, a rotating servo motor (123) is fixed to the outer wall of one of the connecting plates (122), and the rotating servo motor (123) drives the intermediate rotating shaft to rotate.

3. The automatic conveying and cutting method for a conveyor roller hub according to claim 2, characterized in that: A bottom fixing plate (23) is fixed between the front and rear parts of the middle parts of the lower parts of the two side beams (21) of the upper conveying frame (20), a double-headed pushing oil cylinder (24) is fixed to the middle part of the top surface of the bottom fixing plate (23), and a pushing block (25) is fixed to the ends of the two push rods of the double-headed pushing oil cylinder (24), and a connecting frame (26) is fixed to the top end of the pushing block (25), and a clamping roller body (31) is movably connected to the connecting frame (26) through a hinge shaft. The connecting frame (26) and the clamping roller body (31) are inserted between the corresponding two electric roller bodies (141), and the upper part thereof extends out of the top end of the electric roller body (141) and corresponds to the wheel hub blank (100) placed on the upper conveying frame (20).

4. The method for automatically conveying and cutting a conveyor roller hub according to claim 3, characterized in that: A transverse guide rod (27) is provided above the bottom fixing plate (23), and both ends of the transverse guide rod (27) are fixed on the two side beams (21). The transverse guide rod (27) is inserted into the transverse guide through hole formed on the push block (25), and the outer side wall of the transverse guide rod (27) is in close contact with the inner side wall of the corresponding transverse guide through hole.

5. The automatic conveying and cutting method for a conveyor roller hub according to claim 3, characterized in that: A rotary drive motor (28) is fixed on the outer side of the connecting frame (26), an upper protective shell (261) is fixed on the top plate of the connecting frame (26), the top end of the output shaft of the rotary servo motor (28) extends out of the top plate of the connecting frame (26) and is fixed with a driving gear (281), the middle part of the top plate of the connecting frame (26) is movably connected to an intermediate transition gear (282) through a hinge shaft, the intermediate transition gear (282) is meshed with the driving gear (281), the hinge shaft fixed at the clamping roller body (31) is movably connected to the connecting frame (26) through a bearing, and its top extends out of the top plate of the connecting frame (26). The plate is fixed with a transmission gear (32), which is engaged with the intermediate transition gear (282). The driving gear (281), the intermediate transition gear (282) and the transmission gear (32) are located in the upper protective shell (261). The bottom of the hinge shaft of the intermediate transition gear (282) is movably connected to the top plate of the connecting frame (26) through a bearing. The top of the hinge shaft of the intermediate transition gear (282) is movably connected to the top plate of the upper protective shell (261) through a bearing. The top of the hinge shaft at the clamping roller body (31) is movably connected to the top plate of the upper protective shell (261) through a bearing.

6. The method for automatically conveying and cutting a conveyor roller hub according to claim 3, characterized in that: A sensing block (251) is fixed on the outer side wall of the pushing block (25), and proximity sensors (1) are fixedly installed on the left and right parts of the top surface of the bottom fixing plate (23), and the sensing ends of the proximity sensors (1) correspond to the corresponding sensing blocks (251).

7. The automatic conveying and cutting method for a conveyor roller hub according to claim 5, characterized in that: The top inner side walls of the two side beams (21) are formed with a reinforcing portion (211) extending horizontally inward, a reinforcing frame (212) is fixed to the bottom surface of the reinforcing portion (211), a limiting block (213) is fixed to the outer end of the reinforcing frame (212), and an anti-collision layer (214) is fixed to the outer end surface of the limiting block (213), which faces the side wall of the corresponding rotary drive motor (28).

8. The automatic conveying and cutting method for a conveyor roller hub according to claim 1, characterized in that: The cutting device comprises a vertical frame (60) fixed on the ground at the rear of the left side of the intermediate frame body (121); a left-right moving mechanism (61) is installed on the upper part of the rear wall surface of the rear wall plate of the vertical frame (60); a lifting mechanism (62) is fixed on the rear wall surface of the adjustment block of the left-right moving mechanism (61); and an electric push rod (63) is fixed on the rear wall surface of the lifting block of the lifting mechanism (62).

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