Automobile crankshaft loading rack

Abstract

The present invention relates to a loading rack for automobile crankshafts, one end of which is provided with an outer edge, and the loading rack comprises: a first conveying rack, the first conveying rack comprises two symmetrical and horizontally arranged side brackets, the top of the side brackets is provided with a plurality of V-shaped grooves, the two ends of the crankshaft are respectively clamped at the bottom of the V-shaped grooves, a transmission mechanism is provided on the outer side of each side bracket, and the crankshaft can be moved in two adjacent V-shaped grooves through the cooperation of the two transmission mechanisms; a second conveying rack, the transmission mechanism conveys the crankshaft from the first conveying rack to the second conveying rack, and after the crankshaft is turned over by the second conveying rack, the outer edge of the crankshaft is located above the second conveying rack, and the crankshaft can slide from the top of the second conveying rack to the bottom of the second conveying rack. The present invention utilizes the characteristics of the crankshaft with an outer edge itself, and completes the turning of the crankshaft by setting the second conveying rack, so that the crankshaft is in a vertical state with the V-shaped groove on the second conveying rack, thereby facilitating the manipulator to grab the end of the crankshaft.

Description

Technical Field

[0001] The invention relates to a conveying device, in particular to an automobile crankshaft loading rack. Background Art

[0002] The crankshaft is an indispensable component in the automobile engine.

[0003] In the prior art, the crankshaft needs to be manually transported during the assembly process. First, the crankshaft is transported to the vicinity of the robot gripper by a trolley, and then the crankshaft is placed in the gripping position of the robot gripper by manual operation. Obviously, this working method increases the labor intensity of the workers. Therefore, the staff invented a crankshaft loading rack, which is used to realize the automatic transportation of the crankshaft. Due to the different shapes of the crankshafts of the cars, the structures of the crankshaft loading racks are also different, but the principles of the loading racks are basically the same, all of which use an inclined transmission structure and use the gravity of the crankshaft itself to transport the crankshaft. However, for some crankshafts with outer edges, one end of this crankshaft is light and the other end is heavier, making this inclined crankshaft loading rack not applicable. It will cause the crankshaft to be unbalanced during the transmission process, and often cause the crankshaft to leave the transmission track. Summary of the invention

[0004] The main purpose of the present invention is to provide an automobile crankshaft loading rack so as to smoothly convey the crankshaft with an outer edge.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an automobile crankshaft loading rack, one end of the crankshaft is provided with an outer edge, and the loading rack comprises:

[0006] The first conveyor frame includes two symmetrical and horizontally arranged side brackets, the top of the side brackets is provided with a plurality of V-shaped grooves, the two ends of the crankshaft are respectively clamped at the bottom of the V-shaped grooves, and a transmission mechanism is provided on the outer side of each side bracket, and the crankshaft can be moved in two adjacent V-shaped grooves through the cooperation of the two transmission mechanisms;

[0007] The second conveyor rack, the transmission mechanism conveys the crankshaft from the first conveyor rack to the second conveyor rack, after the crankshaft is flipped through the second conveyor rack, the outer edge of the crankshaft is located above the second conveyor rack, and the crankshaft can slide from the top of the second conveyor rack to the bottom of the second conveyor rack.

[0008] Preferably, the length of the slope of the V-shaped groove away from the second conveying rack is smaller than the length of the slope of the V-shaped groove close to the second conveying rack.

[0009] Preferably, the transmission mechanism includes a dial wheel, an upper push rod and a lower push rod. The dial wheel is rotatably arranged on one side of the side bracket through a rotating shaft. After the lower push rod and the upper push rod reciprocate once in sequence, the dial wheel can be driven to rotate one circle, and the dial wheel can push the crankshaft.

[0010] Further preferably, the transmission mechanism further comprises an upper rack and a lower rack, the upper push rod is fixedly connected to the upper rack, the lower rack is fixedly connected to the lower push rod, the dial wheel comprises a dial tooth and a rotating wheel, the dial tooth is fixedly arranged at one end of the rotating wheel, the dial tooth is L-shaped, and when the dial tooth is in a vertical position, the crankshaft is located at the rotation angle of the dial tooth;

[0011] The rotating wheel is provided with semicircular teeth, which can be meshed and connected with the upper rack and the lower rack;

[0012] The widths of the upper rack and the lower rack are equal to the width of the rotating wheel, the width of the teeth of the upper rack is half of the width of the upper rack, and the teeth of the upper rack are close to the side bracket;

[0013] The width of the teeth of the lower rack is half the width of the lower rack, and the teeth of the lower rack are away from the side bracket;

[0014] When the lower push rod drives the lower rack to move in the direction away from the second conveyor rack, the lower rack can drive the thumbwheel to rotate. After the thumbwheel rotates half a circle, the lower rack no longer drives the thumbwheel to rotate, and the lower rack makes a return motion. At this time, the upper push rod drives the upper rack to move in the direction close to the second conveyor rack, and the upper rack drives the thumbwheel to rotate, causing the thumbwheel to rotate half a circle, and finally causing the thumbwheel to rotate one circle, completing the transmission of the crankshaft.

[0015] Preferably, the second conveyor frame includes two slide bars arranged in parallel, which are smoothly inclined downward. After the crankshaft falls on the second conveyor frame, the main body of the crankshaft can be flipped into a vertical state through the gap between the two slide bars, and the outer edge of the crankshaft is placed above the slide bars.

[0016] Further preferably, a positioning device is provided on one of the slide bars, and the positioning device can separate and isolate the crankshaft on the second conveyor rack.

[0017] Further preferably, the locking device includes a plurality of seesaw devices, a connecting rod and two elastic devices. The two elastic devices are respectively fixed on the sliding rod, and the two elastic devices are respectively located at both ends of the connecting rod. The end of the connecting rod is inserted into the elastic device. The sliding rod is provided with a plurality of strip holes. The seesaw device is arranged in the strip holes. One end of the seesaw device is located between the two sliding rods, and the other end of the seesaw device extends out of the sliding rod. The connecting rod connects the seesaw devices in series.

[0018] More preferably, the seesaw device comprises a support plate and a flat plate, one end of the support plate is fixedly connected to the slide bar, and the other end of the support plate is movably connected to the flat plate;

[0019] One end of the plate is located between the two slide bars, and the other end of the plate extends out of the slide bars and is movably connected to the connecting rod;

[0020] The distance between the end of the lowermost plate and the other slide bar is greater than the distance between the end of the other plates and the other slide bar.

[0021] Further preferably, the elastic device includes a fixed block and a compression spring, one end of the fixed block is provided with a through hole, the other end of the through hole is connected to the inner hole, the diameter of the inner hole is larger than the diameter of the through hole, the connecting rod is inserted into the inner hole through the through hole, the connecting rod is slidably connected to the fixed block through the through hole, the compression spring is located in the inner hole, and the end of the connecting rod abuts against the compression spring.

[0022] More preferably, pressure blocks are respectively provided at both ends of the connecting rod.

[0023] The beneficial effects of the present invention are:

[0024] The present invention designs the first conveying frame as a horizontal conveying frame, and uses a transmission mechanism arranged on one side of the side frame to complete the movement of the crankshaft, thereby avoiding the problem of the crankshaft being separated from the conveying frame due to the excessive weight of the end with the outer edge during the movement of the crankshaft. In addition, in the present invention, the present invention utilizes the characteristics of the crankshaft with the outer edge itself, and completes the flipping of the crankshaft by setting a second conveying frame, so that the crankshaft is in a vertical state in the groove on the second conveying frame, thereby facilitating the robot to grab the end of the crankshaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the overall structure of the automobile crankshaft loading rack of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the first conveying rack of the automobile crankshaft loading rack of the present invention;

[0028] Figure 3 is a schematic structural diagram of a transmission mechanism of a first conveyor frame of the present invention;

[0029] Figure 4 It is a structural schematic diagram of a thumbwheel in the transmission mechanism of the present invention;

[0030] Figure 5 It is a three-dimensional structural schematic diagram of a thumbwheel in the transmission mechanism of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the second conveying rack of the automobile loading rack of the present invention;

[0032] Figure 7 yes Figure 6 An enlarged view of part A in FIG.

[0033] Figure 8It is a schematic structural diagram of the seesaw device in the positioning device of the present invention;

[0034] Fig. 9 It is a schematic structural diagram of the elastic device in the locking device of the present invention.

[0035] Description of Reference Numerals

[0036] 10. Crankshaft;

[0037] 100. a first conveying rack;

[0038] 110, side bracket; 111, sliding plate; 112, V-shaped groove;

[0039] 113, stand; 120, transmission mechanism; 121, dial wheel; 1211, dial gear;

[0040] 1212, rotating wheel; 122, upper slide plate; 123, upper rack; 124, lower rack;

[0041] 125, lower slide plate; 126, connecting plate; 127, upper push rod; 128, lower push rod;

[0042] 200, second conveyor rack;

[0043] 210, sliding rod; 211, strip hole; 220, positioning device; 222, supporting plate;

[0044] 223, flat plate; 224, connecting rod; 2241, pressing block; 225, elastic device;

[0045] 2251, fixing block; 2252, compression spring; 22511, through hole; 22512, inner hole. DETAILED DESCRIPTION

[0046] The technical scheme in the embodiment of the present invention is described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0047] like Figure 1As shown, this embodiment provides a crankshaft loading rack for automobiles, wherein one end of the crankshaft 10 of this embodiment is provided with an outer edge, or a flywheel can be installed on the crankshaft 10 during the installation process to form a crankshaft shape similar to that of this embodiment, so that the loading rack of this embodiment can be used. Specifically, the loading rack of this embodiment includes a first conveyor rack 100 and a second conveyor rack 200, the first conveyor rack 100 and the second conveyor rack 200 are arranged vertically, the second conveyor rack 200 is located at the end of the first conveyor rack 100, the first conveyor rack 100 is used to convey the crankshaft 10 in the horizontal direction, and then convey the crankshaft 10 to the second conveyor rack 200, the second conveyor rack 200 turns the received crankshaft 10 to a vertical state (the end with the outer edge is located at the top), and then conveys the crankshaft 10 to the robot gripping position. In this embodiment, the first conveyor rack 100 is located at the end of the conveyor belt that conveys the crankshaft 10, so as to form an automated conveying as a whole.

[0048] Specifically, Figure 2 As shown, the first conveyor frame 100 includes two symmetrical and horizontally arranged side brackets 110. Preferably, the side bracket 110 includes a sliding plate 111 and a stand 113, the stand 113 is used to support the sliding plate 111, and a plurality of V-shaped grooves 112 are provided on the top of the sliding plate 111, and the two ends of the crankshaft 10 are respectively clamped at the bottom of the V-shaped groove 112. Among them, the length of the slope of the side of the V-shaped groove 112 away from the second conveyor frame 200 is less than the length of the slope of the side of the V-shaped groove 112 close to the second conveyor frame 200, and the slope of the slope is set between 70 degrees and 80 degrees, so that when the crankshaft 10 is clamped into the V-shaped groove 112, the end without the outer edge is not easy to be lifted out of the V-shaped groove 112, and at the same time, when the crankshaft 10 enters the V-shaped groove 112, it will not slide out of the V-shaped groove 112. The slope of the slope on the other side is set between 40 degrees and 50 degrees, so that the crankshaft 10 can slide out smoothly.

[0049] A transmission mechanism 120 is disposed on the outer side of each side bracket 110, and the crankshaft 10 can be moved in two adjacent V-shaped grooves 112 through the cooperation of the two transmission mechanisms 120. Figure 3 As shown, specifically, the transmission mechanism 120 includes a dial wheel 121, an upper slide plate 122, an upper push rod 127, an upper rack 123, a lower rack 124, a lower slide plate 125 and a lower push rod 128. The dial wheel 121 is rotatably arranged on one side of the sliding plate 111 of the side bracket 110 via a rotating shaft, the upper rack 123 and the lower rack 124 are respectively meshed and connected with the dial wheel 121, the upper push rod 127 is fixedly connected with the upper rack 123, the lower push rod 128 is fixedly connected with the lower rack 124, the upper slide plate 122 is slidably connected with the upper rack 123, and the lower slide plate 125 is slidably connected with the lower rack 124. Preferably, as Figure 4As shown, the upper slide plate 122 and the upper rack 123, and the lower slide plate 125 and the lower rack 124 are slidably connected by T-shaped tracks and T-shaped grooves, respectively. The upper slide plate 122 and the lower slide plate 125 are fixedly connected by a connecting plate 126, and the frame composed of the upper slide plate 122 and the lower slide plate 125 is fixedly connected to the stand 113. After the lower push rod 128 and the upper push rod 127 reciprocate once in sequence, they can drive the thumbwheel 121 to rotate one circle, and the thumbwheel 121 can push the crankshaft 10.

[0050] Specifically, Figure 5 As shown, the dial wheel 121 includes a dial tooth 1211 and a rotating wheel 1212. The dial tooth 1211 is fixedly arranged at one end of the rotating wheel 1212. The dial tooth 1211 is L-shaped. When the dial tooth 1211 is in a vertical position, the crankshaft 10 is located at the corner of the dial tooth 1211. The rotating wheel 1212 is provided with semicircular teeth, which can be meshed and connected with the upper rack 123 and the lower rack 124; the width of the upper rack 123 and the lower rack 124 is equal to the width of the rotating wheel 1212, the width of the teeth of the upper rack 123 is half of the width of the upper rack 123, and the teeth of the upper rack 123 are close to the side bracket 110; similarly, the width of the teeth of the lower rack 124 is half of the width of the lower rack 124, and the teeth of the lower rack 124 are far away from the side bracket 110. When the lower push rod 128 drives the lower rack 124 to move in the direction away from the second conveying frame 200, the lower rack 124 can drive the dial wheel 121 to rotate. After the dial wheel 121 rotates half a circle, the lower rack 124 no longer drives the dial wheel 121 to rotate, and the lower rack 124 makes a return motion. At this time, the upper push rod 127 drives the upper rack 123 to move in the direction close to the second conveying frame 200, and the upper rack 123 drives the dial wheel 121 to rotate, so that the dial wheel 121 rotates the remaining half circle, and finally the dial wheel 121 rotates one circle to complete the transmission of the crankshaft 10. During the movement of the crankshaft 10, after the previous shifting tooth 1211 sends the crankshaft 10 into more than half the distance between two adjacent V-shaped grooves 112, the previous shifting tooth 1211 continues to rotate downward, and the crankshaft 10 disengages from the previous shifting tooth 1211, while the next shifting tooth 1211 contacts the crankshaft 10, moving the crankshaft 10 and sending the crankshaft 10 into the V-shaped groove 112.

[0051] In this embodiment, if Figure 1 , Figure 6 and Figure 7 As shown, after the transmission mechanism 120 transfers the crankshaft 10 from the first conveyor frame 100 to the second conveyor frame 200, the crankshaft 10 is flipped over by the second conveyor frame 200 so that the outer edge of the crankshaft 10 is located above the second conveyor frame 200, and then the crankshaft 10 uses its own gravity to slide from the top of the second conveyor frame 200 to the bottom of the second conveyor frame 200.

[0052] Specifically, Figure 6 and Figure 7 As shown, the second conveyor frame 200 includes two parallel sliding bars 210, and the distance between the two sliding bars 210 is greater than the diameter of the crankshaft 10 and less than the diameter of the outer edge of the crankshaft 10. The sliding bars 210 are smoothly inclined downwardly, and can also be made into a spiral shape as needed to carry more crankshafts 10. When the crankshaft 10 falls on the second conveyor frame 200, the main body of the crankshaft 10 can be turned over in a vertical state through the gap between the two sliding bars 210, and the outer edge of the crankshaft 10 is placed above the sliding bars 210.

[0053] In this embodiment, in order to avoid collision between the crankshafts 10 on the second conveying frame 200 and thus generate noise, a positioning device 220 is provided on one of the slide bars 210, and the positioning device 220 can separate and isolate the crankshafts 10 on the second conveying frame 200.

[0054] Specifically, Figure 7 As shown, the locking device 220 includes a plurality of seesaw devices, a connecting rod 224 and two elastic devices 225. The two elastic devices 225 are respectively fixed on the slide bar 210, and the two elastic devices 225 are respectively located at both ends of the connecting rod 224. The end of the connecting rod 224 is inserted into the elastic device 225. The slide bar 210 is provided with a plurality of strip holes 211. The seesaw device is arranged in the strip holes 211. One end of the seesaw device is located between the two slide bars 210, and the other end of the seesaw device extends out of the slide bar 210, so that the connecting rod 224 connects these seesaw devices in series.

[0055] Preferably, Figure 8 As shown, the seesaw device includes a support plate 222 and a flat plate 223, one end of the support plate 222 is fixedly connected to the slide bar 210, and the other end of the support plate 222 is movably connected to the flat plate 223. One end of the flat plate 223 is located between the two slide bars 210, and the other end of the flat plate 223 is movably connected to the connecting rod 224 after extending out of the slide bar 210, and the crankshaft 10 is clamped by the flat plate 223, so that each crankshaft 10 is separated. In this embodiment, the distance between the end of the flat plate 223 located at the bottom and another slide bar 210 is greater than the distance between the end of the other flat plates 223 and another slide bar 210.

[0056] like Fig. 9As shown, the elastic device 225 includes a fixed block 2251 and a compression spring 2252. One end of the fixed block 2251 is provided with a through hole 22511. The other end of the through hole 22511 is connected to the inner hole 22512. The diameter of the inner hole 22512 is larger than the diameter of the through hole 22511. The connecting rod 224 is inserted into the inner hole 22512 through the through hole 22511. The connecting rod 224 is slidably connected with the fixed block 2251 through the through hole 22511. The compression spring 2252 is located in the inner hole 22512. The end of the connecting rod 224 abuts against the compression spring 2252. Pressure blocks 2241 are provided at both ends of the connecting rod 224.

[0057] In this embodiment, after the manipulator grabs the crankshaft 10 at the front, it moves forward for a distance, thereby expanding the distance between the flat plate 223 and another slide bar 210, and then slides out. In the process of expanding the distance between the flat plate 223 and another slide bar 210, due to the action of the seesaw device, the connecting rod 224 moves in the opposite direction, thereby driving the remaining flat plates 223 in the seesaw device to rotate, thereby expanding the distance between these flat plates 223 and another slide bar 210, so that the crankshaft 10 slides into the next partition interval in turn. As mentioned above, the distance between the end of the flat plate 223 at the bottom and another slide bar 210 is greater than the distance between the end of the other flat plates 223 and another slide bar 210, and this arrangement can smoothly move the crankshaft 10 in each partition interval.

[0058] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A crankshaft loading rack for automobiles, wherein one end of the crankshaft is provided with an outer edge, characterized in that: The loading rack comprises: A first conveying frame, the first conveying frame comprises two symmetrical and horizontally arranged side brackets, the top of each side bracket is provided with a plurality of V-shaped grooves, the two ends of the crankshaft are respectively clamped at the bottom of the V-shaped grooves, and a transmission mechanism is provided on the outer side of each side bracket, and the crankshaft can be moved in two adjacent V-shaped grooves through the cooperation of the two transmission mechanisms; a second conveying rack, wherein the transmission mechanism conveys the crankshaft from the first conveying rack to the second conveying rack, and after the crankshaft is turned over by the second conveying rack, the outer edge of the crankshaft is located above the second conveying rack, and the crankshaft can slide from the top of the second conveying rack to the bottom of the second conveying rack; The length of the slope of the V-shaped groove away from the second conveying rack is smaller than the length of the slope of the V-shaped groove close to the second conveying rack; The transmission mechanism includes a thumbwheel, an upper push rod and a lower push rod. The thumbwheel is rotatably arranged on one side of the side bracket through a rotating shaft. After the lower push rod and the upper push rod reciprocate once in sequence, the thumbwheel can be driven to rotate one circle, and the thumbwheel can push the crankshaft. The transmission mechanism further comprises an upper rack and a lower rack, the upper push rod is fixedly connected to the upper rack, the lower rack is fixedly connected to the lower push rod, the dial wheel comprises a dial tooth and a rotating wheel, the dial tooth is fixedly arranged at one end of the rotating wheel, the dial tooth is L-shaped, and when the dial tooth is in a vertical position, the crankshaft is located at the rotation angle of the dial tooth; The rotating wheel is provided with semicircular teeth, and the semicircular teeth can be meshed and connected with the upper rack and the lower rack; The widths of the upper rack and the lower rack are equal to the width of the rotating wheel, the width of the teeth of the upper rack is half of the width of the upper rack, and the teeth of the upper rack are close to the side bracket; The width of the teeth of the lower rack is half the width of the lower rack, and the teeth of the lower rack are away from the side bracket; When the lower push rod drives the lower rack to move in the direction away from the second conveying rack, the lower rack can drive the thumb wheel to rotate. After the thumb wheel rotates half a circle, the lower rack no longer drives the thumb wheel to rotate, and the lower rack makes a return motion. At this time, the upper push rod drives the upper rack to move in the direction close to the second conveying rack, and the upper rack drives the thumb wheel to rotate, causing the thumb wheel to rotate half a circle, and finally causing the thumb wheel to rotate one circle, completing the transmission of the crankshaft.

2. The automobile crankshaft loading rack according to claim 1, characterized in that: The second conveying frame includes two sliding bars arranged in parallel, and the sliding bars are arranged to be smoothly inclined downward. After the crankshaft falls on the second conveying frame, the main body of the crankshaft can be flipped into a vertical state through the gap between the two sliding bars, and the outer edge of the crankshaft is placed above the sliding bars.

3. The automobile crankshaft loading rack according to claim 2, characterized in that: A positioning device is provided on one of the slide bars, and the positioning device can separate and isolate the crankshaft on the second conveying rack.

4. The automobile crankshaft loading rack according to claim 3, characterized in that: The locking device includes a plurality of seesaw devices, a connecting rod and two elastic devices. The two elastic devices are respectively fixed on the sliding rod, and the two elastic devices are respectively located at both ends of the connecting rod. The end of the connecting rod is inserted into the elastic device. The sliding rod is provided with a plurality of strip holes. The seesaw device is arranged in the strip holes. One end of the seesaw device is located between the two sliding rods, and the other end of the seesaw device extends out of the sliding rod. The connecting rod connects the seesaw devices in series.

5. The automobile crankshaft loading rack according to claim 4, characterized in that: The seesaw device comprises a support plate and a flat plate, one end of the support plate is fixedly connected to the slide bar, and the other end of the support plate is movably connected to the flat plate; One end of the plate is located between the two sliding rods, and the other end of the plate extends out of the sliding rod and is movably connected to the connecting rod; The distance between the end of the lowermost plate and another of the slide bars is greater than the distance between the ends of the other plates and another of the slide bars.

6. The automobile crankshaft loading rack according to claim 5, characterized in that: The elastic device includes a fixed block and a compression spring, one end of the fixed block is provided with a through hole, the other end of the through hole is connected to an inner hole, the diameter of the inner hole is larger than the diameter of the through hole, the connecting rod is inserted into the inner hole through the through hole, the connecting rod is slidably connected to the fixed block through the through hole, the compression spring is located in the inner hole, and the end of the connecting rod abuts against the compression spring.

7. The automobile crankshaft loading rack according to claim 6, characterized in that: Both ends of the connecting rod are respectively provided with pressing blocks.

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