Automatic feeding device for crankshaft machining

Abstract

The utility model discloses an automatic feeding device for crankshaft processing, which comprises a plurality of groups of bases and electric push rods, the electric push rods are mounted in the bases, two groups of supporting arms are mounted at the top ends of the bases, two groups of rotating arms are mounted at the top ends of the supporting arms, and the rotating arms are movably connected with the supporting arms. The output ends of the electric push rods are provided with bearing blocks, the two ends of each bearing block are provided with linkage arms, the linkage arms are movably connected with the bearing blocks, the ends, away from the bearing blocks, of the linkage arms are provided with hinge shafts, and the linkage arms are movably connected with the rotating arms through the hinge shafts. According to the feeding device, the crankshafts can be conveniently clamped and fixed, the feeding height can be conveniently and rapidly adjusted and matched, the crankshafts with different lengths can be conveniently and relatively moved to be matched and clamped, multiple sets of crankshafts can be sequentially conveyed and fed, and the convenience of clamping the matched crankshafts and the flexibility of feeding control are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to an automatic feeding device for crankshaft processing. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, work evenly and have good balance. Because the crankshaft itself is heavy, the traditional loading method when processing it is mostly manual loading, which is dangerous and inefficient. In order to improve this situation, an automatic loading device for crankshaft processing is proposed.

[0003] For example, an automatic loading and unloading mechanism for a special automatic grinder for crankshaft processing disclosed in the authorization announcement number CN208214999U includes a transmission frame, a loading mechanism and a unloading mechanism slidably connected to the transmission frame, a loading conveyor belt cooperating with the loading mechanism and a unloading conveyor belt cooperating with the unloading mechanism, and a support beam for mounting the transmission frame, the loading mechanism includes a loading jaw, a loading clamping cylinder driving the loading jaw to do a grabbing action, and a loading lifting cylinder driving the loading jaw to do a lifting action, and the unloading mechanism includes a unloading jaw, a unloading clamping cylinder driving the unloading jaw to do a grabbing action, and a unloading lifting cylinder driving the unloading jaw to do a lifting action;

[0004] Although the utility model realizes that the transmission frame drives the loading mechanism to automatically load materials and drives the unloading mechanism to automatically unload materials, so that it can automatically load and unload materials, has a high degree of automation, high efficiency in loading and unloading materials, can reduce the labor intensity of workers, improve production efficiency, and the overall structure is firm and reliable, and loading and unloading materials are stable and reliable;

[0005] However, the problem that the existing feeding device is not conducive to convenient clamping and fixing the crankshaft and convenient height adjustment to adapt to the feeding height during use, is not conducive to relative movement to adapt to the clamping of crankshafts of different lengths and to conveying and feeding multiple groups of crankshafts in sequence, affects the convenience of clamping and adapting the crankshaft and the flexibility of feeding operation. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic loading device for crankshaft processing, so as to solve the problem that the loading device proposed in the above background technology is not convenient for conveniently clamping and fixing the crankshaft and conveniently adjusting the height to adapt to the loading height, is not conducive to relative movement and adaptation to clamping crankshafts of different lengths and sequentially conveying and loading multiple groups of crankshafts, which affects the convenience of clamping and adapting the crankshaft and the flexibility of loading control.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic loading device for crankshaft processing, comprising a base and an electric push rod, the base is divided into multiple groups, and the electric push rods are installed inside the base, two groups of support arms are installed at the top of the base, two groups of rotating arms are installed at the top of the support arms, and the rotating arms are movably connected to the support arms, the output ends of the electric push rods are installed with bearing blocks, both ends of the bearing blocks are installed with linkage arms, and the linkage arms are movably connected to the bearing blocks, the ends of the linkage arms away from the bearing blocks are installed with hinge shafts, and the linkage arms are movably connected to the rotating arms through the hinge shafts, and the tops of the rotating arms are movably installed with clamps, a lifting frame is provided on the outside of the base, a supporting frame is provided on the outside of the lifting frame, and the lifting frame is slidably connected to the supporting frame.

[0008] Preferably, an integrated frame is installed at the top of the lifting frame, a driving roller is installed inside the integrated frame, a conveying motor is installed on the side wall of the integrated frame on one side of the driving roller, and the output end of the conveying motor is connected to the driving roller.

[0009] Preferably, a conveyor belt is installed on the surface of the driving roller, a driven roller is movably installed inside the integrated frame on one side of the driving roller, and the conveyor belt extends to the surface of the driven roller, and a plurality of clamping frames with equal spacing are installed on the top of the conveyor belt.

[0010] Preferably, a bidirectional threaded rod is installed inside the clamping frame, and the bidirectional threaded rod is movably connected to the clamping frame, a servo motor is installed on the side wall of the clamping frame on one side of the bidirectional threaded rod, and the output end of the servo motor is connected to the bidirectional threaded rod.

[0011] Preferably, the surfaces of the bidirectional threaded rods are each covered with two sets of bidirectional threaded sleeves, and the bidirectional threaded sleeves are threadedly connected to the bidirectional threaded rods, and the bidirectional threaded sleeves are slidably connected to the clamping frame, and the bidirectional threaded sleeves are connected to the base.

[0012] Preferably, a lifting motor is installed at the top of the support frame, a sprocket is installed at the output end of the lifting motor, a chain is installed on the surface of the sprocket, and the chain and the sprocket are meshed with each other, a connecting block is installed at one end of the chain, and the connecting block is connected to the lifting frame, a counterweight block is slidably installed inside the support frame, and the other end of the chain is connected to the counterweight block.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the feeding device not only realizes convenient clamping and fixing of the crankshaft and convenient height adjustment to adapt to the feeding height, but also facilitates relative movement to adapt to clamping of crankshafts of different lengths and sequential feeding of multiple groups of crankshafts, and improves the convenience of clamping and adapting the crankshaft and the flexibility of feeding control;

[0014] (1) The device is first connected to an external control and an external circuit, and then multiple groups of crankshafts are placed on the clamps in sequence. The electric push rod drives the bearing block to move, and the bearing block drives the linkage arm to rotate. The linkage arm drives the rotating arm to rotate through the hinge shaft, wherein the support arm provides movable support for the rotating arm, and the rotating arm drives the two groups of clamps to rotate toward each other, so that the clamps clamp and fix the crankshafts. If the lengths of the crankshafts are different, the servo motor drives the two-way threaded rod to rotate, and the two-way threaded rod drives the two groups of two-way threaded sleeves to move toward each other, and the two-way threaded sleeve drives the base and the clamps to move toward each other to adjust the relative distance between the two groups of clamps to complete the adaptive clamping of crankshafts of different lengths, thereby realizing the convenient clamping and fixing of the crankshaft by the feeding device, facilitating the relative movement and adaptive clamping of crankshafts of different lengths, and improving the convenience of the feeding device in clamping the adaptive crankshaft;

[0015] (2) After the clamping and fixing is completed, the lifting motor drives the sprocket to rotate, and the sprocket drives the chain to move, and the counterweight block provides stable support for the chain. The chain drives the lifting frame to move upward through the connecting block, and the lifting frame drives the crankshaft to move upward to move to the specified height. The conveying motor drives the transmission roller to rotate, and the transmission roller drives the conveyor belt to move. The conveyor belt drives multiple groups of clamps and crankshafts to move to the loading position to facilitate manual picking, so as to complete the sequential loading and transportation of multiple groups of crankshafts, realize the convenient height adjustment of the loading device to adapt to the loading height, facilitate the sequential feeding of multiple groups of crankshafts, and improve the flexibility of the loading and control of the loading device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the side cross-sectional structure of the clamping frame of the utility model;

[0018] Figure 3 It is a front view structural schematic diagram of the clamping jaw of the utility model;

[0019] Figure 4 It is a schematic diagram of the side cross-sectional structure of the support frame of the utility model.

[0020] In the figure: 1. support frame; 2. lifting motor; 3. sprocket; 4. counterweight; 5. chain; 6. connecting block; 7. lifting frame; 8. transmission roller; 9. conveyor belt; 10. conveying motor; 11. integrated frame; 12. clamping frame; 13. clamping claw; 14. servo motor; 15. driven roller; 16. two-way threaded sleeve; 17. two-way threaded rod; 18. base; 19. electric push rod; 20. support arm; 21. rotating arm; 22. bearing block; 23. linkage arm; 24. articulated shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: an automatic feeding device for crankshaft processing, comprising a base 18 and an electric push rod 19, the base 18 is a plurality of groups, the inside of the base 18 is equipped with an electric push rod 19, the electric push rod 19 plays a role of power drive, the top of the base 18 is equipped with two groups of support arms 20, the top of the support arms 20 is equipped with two groups of rotating arms 21, and the rotating arms 21 are movably connected with the support arms 20, the output ends of the electric push rods 19 are equipped with bearing blocks 22, both ends of the bearing blocks 22 are equipped with linkage arms 23, and the linkage arms 23 are movably connected with the bearing blocks 22, the ends of the linkage arms 23 away from the bearing blocks 22 are equipped with hinge shafts 24, and the linkage arms 23 are movably connected with the rotating arms 21 through the hinge shafts 24, and the tops of the rotating arms 21 are movably equipped with clamping claws 13, the outside of the base 18 is provided with a lifting frame 7, the outside of the lifting frame 7 is provided with a supporting frame 1, and the lifting frame 7 is slidably connected with the supporting frame 1;

[0023] First, the device is connected to the external control and external circuit, and then multiple groups of crankshafts are placed on the clamping jaws 13 in sequence. The electric push rod 19 is turned on by external control, and the electric push rod 19 drives the bearing block 22 to move. The bearing block 22 drives the linkage arm 23 to rotate, and the linkage arm 23 drives the rotating arm 21 to rotate through the hinge shaft 24. The support arm 20 provides active support for the rotating arm 21, and the rotating arm 21 drives the two groups of clamping jaws 13 to rotate towards each other, so that the clamping jaws 13 clamp the crankshafts and fix them. If the lengths of the crankshafts are different, the servo motor 14 is turned on by external control, and the servo motor 1 The bidirectional threaded rod 17 is driven to rotate. Under the threaded connection between the bidirectional threaded rod 17 and the bidirectional threaded sleeve 16, and under the sliding cooperation between the bidirectional threaded sleeve 16 and the clamping frame 12, the bidirectional threaded rod 17 drives the two sets of bidirectional threaded sleeves 16 to move toward each other, and the bidirectional threaded sleeve 16 drives the base 18 and the clamping jaws 13 to move toward each other, so as to adjust the relative distance between the two sets of clamping jaws 13, so as to complete the adaptive clamping of crankshafts of different lengths, realize the convenient clamping and fixing of the crankshaft by the feeding device, facilitate the relative movement adaptive clamping of crankshafts of different lengths, and improve the convenience of the feeding device in clamping the adaptive crankshaft;

[0024] An integrated frame 11 is installed at the top of the lifting frame 7, a driving roller 8 is installed inside the integrated frame 11, and a conveying motor 10 is installed on the side wall of the integrated frame 11 on one side of the driving roller 8. The conveying motor 10 plays a role of power drive, and the output end of the conveying motor 10 is connected to the driving roller 8;

[0025] A conveyor belt 9 is installed on the surface of the driving roller 8, a driven roller 15 is movably installed inside the integrated frame 11 on one side of the driving roller 8, and the conveyor belt 9 extends to the surface of the driven roller 15, and multiple groups of clamping frames 12 are installed at equal intervals on the top of the conveyor belt 9;

[0026] A bidirectional threaded rod 17 is installed inside the clamping frame 12, and the bidirectional threaded rod 17 is movably connected to the clamping frame 12. A servo motor 14 is installed on the side wall of the clamping frame 12 on one side of the bidirectional threaded rod 17. The servo motor 14 plays a role of power drive, and the output end of the servo motor 14 is connected to the bidirectional threaded rod 17;

[0027] The surfaces of the bidirectional threaded rods 17 are all covered with two sets of bidirectional threaded sleeves 16, and the bidirectional threaded sleeves 16 are threadedly connected to the bidirectional threaded rods 17, and the bidirectional threaded sleeves 16 are slidably connected to the clamping frame 12, and the bidirectional threaded sleeves 16 are connected to the base 18;

[0028] A lifting motor 2 is installed at the top of the support frame 1, and the lifting motor 2 plays a role of power drive. A sprocket 3 is installed at the output end of the lifting motor 2, and a chain 5 is installed on the surface of the sprocket 3, and the chain 5 and the sprocket 3 are meshed with each other. A connecting block 6 is installed at one end of the chain 5, and the connecting block 6 is connected to the lifting frame 7. A counterweight block 4 is slidably installed inside the support frame 1, and the other end of the chain 5 is connected to the counterweight block 4;

[0029] After the clamping and fixing is completed, the lifting motor 2 is turned on by external control, and the sprocket 3 is driven by the lifting motor 2 to rotate. Under the mutual engagement of the sprocket 3 and the chain 5, the sprocket 3 drives the chain 5 to move, and the counterweight block 4 provides stable support for the chain 5. Under the sliding cooperation between the lifting frame 7 and the supporting frame 1, the chain 5 drives the lifting frame 7 to move upward through the connecting block 6, and the lifting frame 7 drives the crankshaft to move upward to move to the specified height. The conveying motor 10 is turned on by external control, and the conveying motor 10 drives the transmission roller 8 to rotate. Under the auxiliary support of the driven roller 15, the transmission roller 8 drives the conveyor belt 9 to move, and the conveyor belt 9 drives multiple groups of clamps 13 and the crankshaft to move to the loading position, so as to facilitate manual picking and complete the sequential loading and conveying of multiple groups of crankshafts, thereby realizing the convenient height adjustment of the loading device to adapt to the loading height, facilitating the sequential conveying and feeding of multiple groups of crankshafts, and improving the flexibility of the loading and control of the loading device.

[0030] Working principle: First, the device is connected to the external control and external circuit, and then multiple groups of crankshafts are placed on the clamping jaws 13 in sequence. The electric push rod 19 drives the bearing block 22 to move, and the bearing block 22 drives the linkage arm 23 to rotate. The linkage arm 23 drives the rotating arm 21 to rotate through the hinge shaft 24, wherein the support arm 20 provides active support for the rotating arm 21, and the rotating arm 21 drives the two groups of clamping jaws 13 to rotate toward each other, so that the clamping jaws 13 clamp the crankshafts and fix them. If the lengths of the crankshafts are different, the servo motor 14 drives the bidirectional threaded rod 17 to rotate, and under the sliding cooperation between the bidirectional threaded sleeve 16 and the clamping frame 12, the bidirectional threaded rod 17 drives the two groups of bidirectional threaded sleeves 16 to move toward each other, and the bidirectional threaded sleeve 16 drives the base 18 and the clamping jaws 13 to move toward each other. The lifting frame 7 is moved upward by the chain 5 through the connecting block 6, and the crankshaft is driven by the lifting frame 7 to move upward to a specified height. The transmission motor 10 drives the transmission roller 8 to rotate, and the transmission roller 8 drives the conveyor belt 9 to move, and the conveyor belt 9 drives multiple groups of clamps 13 and the crankshaft to move to the loading position for easy manual picking, so as to complete the sequential loading and conveying of multiple groups of crankshafts, and complete the use of the automatic loading device for crankshaft processing.

Claims

1. An automatic loading device for crankshaft processing, comprising a base (18) and an electric push rod (19), characterized in that: The base (18) is composed of multiple groups, each of which is equipped with an electric push rod (19), each of which is equipped with two groups of support arms (20) at the top of each of which, each of which is equipped with two groups of rotating arms (21), and each of which is movably connected to the support arm (20), each of which is equipped with a bearing block (22) at the output end, each of which is equipped with a linkage arm (23) at both ends of the bearing block (22), and each of which is equipped with a rotation arm (21). 3) is movably connected to the bearing block (22), the end of the linkage arm (23) away from the bearing block (22) is equipped with a hinge shaft (24), and the linkage arm (23) is movably connected to the rotating arm (21) through the hinge shaft (24), and the top of the rotating arm (21) is movably equipped with a clamping claw (13), the outside of the base (18) is provided with a lifting frame (7), the outside of the lifting frame (7) is provided with a supporting frame (1), and the lifting frame (7) is slidably connected to the supporting frame (1).

2. The automatic loading device for crankshaft processing according to claim 1, characterized in that: An integrated frame (11) is installed at the top of the lifting frame (7), a driving roller (8) is installed inside the integrated frame (11), a conveying motor (10) is installed on the side wall of the integrated frame (11) on one side of the driving roller (8), and the output end of the conveying motor (10) is connected to the driving roller (8).

3. The automatic loading device for crankshaft processing according to claim 2, characterized in that: A conveyor belt (9) is installed on the surface of the driving roller (8), a driven roller (15) is movably installed inside an integrated frame (11) on one side of the driving roller (8), and the conveyor belt (9) extends to the surface of the driven roller (15), and a plurality of groups of clamping frames (12) are installed at equal intervals at the top end of the conveyor belt (9).

4. The automatic loading device for crankshaft processing according to claim 3 is characterized in that: A bidirectional threaded rod (17) is installed inside the clamping frame (12), and the bidirectional threaded rod (17) is movably connected to the clamping frame (12). A servo motor (14) is installed on the side wall of the clamping frame (12) on one side of the bidirectional threaded rod (17), and the output end of the servo motor (14) is connected to the bidirectional threaded rod (17).

5. The automatic loading device for crankshaft processing according to claim 4, characterized in that: The surfaces of the bidirectional threaded rods (17) are each provided with two sets of bidirectional threaded sleeves (16), the bidirectional threaded sleeves (16) are threadedly connected to the bidirectional threaded rods (17), the bidirectional threaded sleeves (16) are slidably connected to the clamping frame (12), and the bidirectional threaded sleeves (16) are connected to the base (18).

6. The automatic loading device for crankshaft machining according to claim 1, characterized in that: A lifting motor (2) is installed at the top of the support frame (1), a sprocket (3) is installed at the output end of the lifting motor (2), a chain (5) is installed on the surface of the sprocket (3), and the chain (5) and the sprocket (3) are meshed with each other, a connecting block (6) is installed at one end of the chain (5), and the connecting block (6) is connected to the lifting frame (7), a counterweight block (4) is slidably installed inside the support frame (1), and the other end of the chain (5) is connected to the counterweight block (4).

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