Efficient conveying mechanism for large shaft workpieces

Abstract

The present invention discloses a high-efficiency conveying mechanism for large shaft workpieces, including a frame and a step-by-step lifting mechanism arranged in the frame, the step-by-step lifting mechanism including a reciprocating drive assembly and a reciprocating push plate assembly, the reciprocating drive assembly including a motor and a crank assembly driven by the motor, the crank assembly including a self-rotating rotating block, the rotating block is provided with two pivot points relative to the rotation axis, each of the pivot points is connected with a connecting rod, and the other end of the connecting rod is pivoted with two conveying push plates or a transfer push plate, and when the transfer push plate is located at the two extreme positions of its reciprocating movement, its upper end surface is flush with the upper end surfaces of the two conveying push plates respectively. The present invention effectively solves the problem of difficult feeding of shaft workpieces, is ingenious and reliable, enables shaft workpieces to be arranged quickly and orderly, and completes the function of conveying shaft workpieces from low places to high places.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a high-efficiency conveying mechanism for large shaft workpieces. Background Art

[0002] Automation equipment is generally used in current production activities. The advantage of automation equipment is that it can liberate operators and greatly improve work efficiency. The basic functions of automation equipment generally include loading area, processing area, and unloading area. The loading area includes a feeding mechanism for basic workpieces or raw materials, and its purpose is to transport the basic workpieces or raw materials to the processing area; the processing area is generally the core of the automation equipment, and its purpose is to complete the automated processing and testing of basic workpieces or raw materials; the unloading area includes a feeding mechanism for workpieces that have been processed, and its purpose is to transport and package qualified workpieces and classify and collect unqualified workpieces.

[0003] For the feeding mechanism in the loading area, the most important requirement is to quickly and effectively arrange the randomly placed basic workpieces in an orderly manner and provide them to the processing area. At present, the effective way is to use a vibration plate to achieve this, but for shaft workpieces with a long length, such as the transmission shaft of an automobile, this form is not very suitable. The axially extended body often gets stuck in the vibration plate, or the shaft workpieces interfere with each other and cannot form an orderly arrangement on the vibration plate; further, when the loading area includes a height difference and needs to be transported from a low place to a high place, the transportation process is more difficult and the effect is even worse. Summary of the invention

[0004] In view of this, the present invention solves the above technical problems and provides an efficient conveying mechanism for large shaft workpieces, which can quickly and effectively sort and convey the shaft workpieces and achieve the effect of conveying them from low to high.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A high-efficiency conveying mechanism for large shaft workpieces, comprising a frame, a feed port and a discharge port arranged on the frame, wherein the feed port is lower than the discharge port in the vertical direction, a stepping lifting mechanism is arranged between the feed port and the discharge port, the stepping lifting mechanism comprises a reciprocating drive assembly and a reciprocating push plate assembly, the reciprocating drive assembly comprises a motor and a crank assembly driven by the motor, the crank assembly comprises a rotating block for self-rotation, two pivot points are arranged on the rotating block relative to the rotation axis, namely a first pivot point and a second pivot point, a flat angle is formed between the first pivot point and the second pivot point and the rotation axis, The distance between the first fulcrum and the rotation axis is twice the distance between the second fulcrum and the rotation axis, the first fulcrum and the second fulcrum are respectively connected with a first connecting rod and a second connecting rod, the other end of the first connecting rod has at least two conveying push plates pivoted thereon, the other end of the second connecting rod has a transfer push plate pivoted thereon, the transfer push plate is arranged between the two conveying push plates and its moving direction is always opposite to the moving direction of the two conveying push plates, and when the transfer push plate is located at the two extreme positions of its reciprocating movement, its upper end surface is flush with the upper end surfaces of the two conveying push plates respectively.

[0007] Preferably, the reciprocating drive assembly further comprises an active block and a driven block, wherein the active block is fixed to the output shaft of the motor and directly receives the driving force of the motor.

[0008] Preferably, the first connecting rod pivot is arranged between the driven block and the rotating block, and the second connecting rod pivot is arranged between the active block and the rotating block.

[0009] Preferably, the length difference between the two conveying push plates is equal to the distance between the first fulcrum and the second fulcrum.

[0010] Preferably, the two conveying push plates and the transfer push plate are arranged in parallel and are arranged at an acute angle to the direction of gravity.

[0011] Preferably, the reciprocating push plate group further comprises a reciprocating push plate, one end of which is pivotally arranged on the first connecting rod so that its moving direction is always the same as that of the two conveying push plates.

[0012] Preferably, the reciprocating push plate is spaced apart from one of the adjacent conveying push plates, the conveying push plate adjacent to the reciprocating push plate is the first conveying push plate, a fixed plate is sandwiched between the two, the fixed plate is fixed on the frame, and the length difference between the reciprocating push plate and the first conveying push plate is equal to twice the distance between the first fulcrum and the axis of rotation.

[0013] Preferably, the fixing plate is fixed to the frame by lateral screws.

[0014] Preferably, a guide plate is fixed to the side of the reciprocating push plate facing the feed port.

[0015] Preferably, the conveying push plate away from the reciprocating push plate is a second conveying push plate, a second fixing plate is arranged between the second conveying push plate and the discharge port, and the second fixing plate is fixed to the frame by lateral screws.

[0016] The beneficial effects of the present invention are mainly reflected in: effectively solving the problem of difficult feeding of shaft workpieces, being ingenious and reliable, enabling shaft workpieces to be arranged quickly and orderly, and completing the function of transporting shaft workpieces from low places to high places. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 , a three-dimensional schematic diagram of a preferred embodiment of the present invention;

[0018] Figure 2 , a schematic diagram of a step-by-step lifting mechanism in a first limit position according to a preferred embodiment of the present invention;

[0019] Figure 3 , a schematic diagram of a step-by-step lifting mechanism in a middle position according to a preferred embodiment of the present invention;

[0020] Figure 4 , a schematic diagram of a step-by-step lifting mechanism in a preferred embodiment of the present invention at a second extreme position;

[0021] Figure 5 , a three-dimensional schematic diagram of a step-by-step lifting mechanism according to a preferred embodiment of the present invention;

[0022] Figure 6 , a three-dimensional schematic diagram of the stepping lifting mechanism in another direction of the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] The present invention discloses a high-efficiency conveying mechanism for large shaft workpieces, such as Figure 1 As shown, it includes: a frame, and an outer cover 1 arranged on the frame. The frame includes a horizontal base 2, and the base 2 is directly placed horizontally on the ground or other horizontal planes, and the placement here can be movable or fixed. Two vertical plates 3 are fixed on the base 2, and a base 4 is fixed between the vertical plates 3. In this preferred embodiment, the base 4 is fixed at an angle, that is, it is set at an angle to the horizontal plane. Those skilled in the art should know that the shape of the frame can be various, for example, the shape of the outer cover can be an arc, the shape of the base 2 can be other polygons, the vertical plates 3 and the base 4 can be integrated, and so on. Technical changes under the premise of achieving the same function belong to the equivalent transformation technical solution of the present invention.

[0025] The frame is provided with a feed port 5 and a discharge port 6, wherein the feed port 5 is lower than the discharge port 6 in the vertical direction. In the preferred embodiment, a material frame 7 is provided adjacent to the feed port 5, and a discharge plate 8 is provided adjacent to the discharge port 6. The material frame 7 adopts a collecting frame of the prior art, which is funnel-shaped, and can guide all the raw materials of shaft workpieces into it, while the discharge plate 8 can transport the shaft workpieces one by one to the processing area in an orderly manner.

[0026] The reason for achieving the above functions is that a stepping lifting mechanism is provided between the feed port 5 and the discharge port 6. Specifically, Figures 2 to 6 As shown, the step-by-step lifting mechanism includes a reciprocating drive assembly and a reciprocating push plate assembly.

[0027] The reciprocating drive assembly includes a motor 9 and a crank group driven by the motor. In the preferred embodiment, the crank group includes a rotating block 10 that rotates on its own, and an active block 11 and a driven block 12 that rotate synchronously. The active block 11 is fixed to the output shaft of the motor 9 and directly receives the driving force of the motor. The motor 9 can be an electric motor or a pneumatic motor. The connection form between the motor 9 and the active block 11 can be a direct connection or an indirect transmission such as a synchronous belt or chain, etc., as can be known by those skilled in the art. Of course, a reduction mechanism can also be provided between the output shaft of the motor and the motor shaft. The motor 9 can drive the rotating block 10, the active block 11 and the driven block 12 to rotate coaxially along the axis X.

[0028] Combination Figure 5 and Figure 6 As shown, the rotating block 10 is provided with two pivot points relative to the rotation axis X, namely, a first pivot point 13 and a second pivot point 14, the first pivot point 13 and the second pivot point 14 form a straight angle with the rotation axis X, the distance between the first pivot point 13 and the rotation axis X is twice the distance between the second pivot point 14 and the rotation axis X, and the first pivot point 13 and the second pivot point 14 are respectively pivotally connected with a first connecting rod 15 and a second connecting rod 16. Preferably, the first connecting rod 15 is pivotally arranged between the driven block 12 and the rotating block 10, and the second connecting rod 16 is pivotally arranged between the active block 11 and the rotating block 10, so as to make the transmission of the two connecting rods more stable. When the motor 9 rotates, the active block 11 rotates, and through the coupling linkage of the first fulcrum 13 and the second fulcrum 14, the rotating block 10 and the driven block 12 also rotate around the rotation axis X at the same speed as the active block 11, forming two sets of crank-connecting rod mechanisms with their respective first connecting rods 15 and second connecting rods 16. Due to the position settings of the first fulcrum 13 and the second fulcrum 14, the moving distance of the first connecting rod 15 is almost twice that of the second connecting rod 16.

[0029] In this preferred embodiment, the other end of the first connecting rod 15 has two conveying push plates and a reciprocating push plate 17 on the upper pivot, the conveying push plate adjacent to the reciprocating push plate 17 is the first conveying push plate 18, and the conveying push plate away from the reciprocating push plate 17 is the second conveying push plate 19. The other end of the second connecting rod 16 has a transfer push plate 20 on the upper pivot.

[0030] The reciprocating push plate 17, the first conveying push plate 18, the second conveying push plate 19 and the transfer push plate 20 are all flat plate structures, and are arranged parallel to each other and are arranged at an acute angle to the direction of gravity. The degree of the acute angle is equal to the inclination angle of the base 4. Specifically, the reciprocating push plate 17 and the first conveying push plate 18 are arranged at an interval, and a fixed plate 21 is sandwiched between the two, and the fixed plate 21 is fixed to the frame. The fixed plate 21 is fixed to the frame by lateral screws, and of course other fixing methods are also allowed.

[0031] The transfer push plate 20 is arranged between the first conveying push plate 18 and the second conveying push plate 19 and its moving direction is always opposite to the moving direction of the two conveying push plates. The first conveying push plate 18 is shorter than the second conveying push plate 19, and the length difference between the two is equal to the distance between the first fulcrum 13 and the second fulcrum 14. The length difference between the reciprocating push plate 17 and the first conveying push plate 18 is equal to twice the distance between the first fulcrum 13 and the rotation axis X. The first conveying push plate 18 is arranged close to the fixed plate 21.

[0032] In order to better convey the workpiece, a guide plate 22 is fixed on the side of the reciprocating push plate 17 facing the feed port, which can increase the top surface area of ​​the reciprocating push plate 17 and ensure that there are always workpieces to be conveyed on the upper end surface of the reciprocating push plate 17. A second fixing plate 23 is arranged between the second conveying push plate 19 and the discharge port, and the second fixing plate 23 is fixed to the frame by lateral screws.

[0033] The following is a brief description of the motion process of the preferred embodiment of the present invention. Figure 2When the first limit position is reached, the top surface of the reciprocating push plate 17 and the guide plate 22 is roughly equivalent to the entrance of the feed port 5, so that the shaft workpiece can roll from the feed port 5 to the top surface of the reciprocating push plate 17 and the guide plate 22. At this time, the top surface positions of the first conveying push plate 18 and the fixed plate 21 are roughly equivalent. Due to gravity, the shaft workpiece on the top surface of the fixed plate 21 will roll down to the top surface of the first conveying push plate 18; similarly, the top surface positions of the transfer push plate 20 and the second conveying push plate 19 are roughly equivalent, and are lower than the highest height of the second fixed plate 23. In this way, the shaft workpiece on the top surface of the transfer push plate 20 will roll down to the top surface of the second conveying push plate 19. "Roughly equivalent" in this article means that the end faces are basically flush, and corresponding errors are also allowed. Of course, in order to enable shaft workpieces to be transported more smoothly, the top surface closer to the discharge port of the two top surface positions "roughly equivalent" in this article can be slightly lower. The same applies to the "roughly equivalent" below, and I will not elaborate on it.

[0034] When the rotating block 10, the active block 11 and the rotating block 10 are driven by the motor 9 to rotate, the first connecting rod 15, the second connecting rod 16, the reciprocating push plate 17, the first conveying push plate 18, the second conveying push plate 19 and the transfer push plate 20 will generate a crank-connecting rod type reciprocating motion, wherein the movement direction of the transfer push plate 20 is always opposite to the movement direction of the reciprocating push plate 17, the first conveying push plate 18 and the second conveying push plate 19, such as Figure 3 The reciprocating push plate shown is in the middle position. When the rotating block 10, the active block 11 and the rotating block 10 continue to rotate under the drive of the motor 9, the reciprocating push plate group is in Figure 4 At this time, the top surface of the reciprocating push plate 17 is roughly equivalent to the top surface of the fixed plate 21. Due to gravity, the shaft-like workpieces on the top surface of the reciprocating push plate 17 will roll down to the top surface of the fixed plate 21; the top surface of the first conveying push plate 18 is roughly equivalent to the top surface of the transfer push plate 20. Due to gravity, the shaft-like workpieces on the top surface of the first conveying push plate 18 will roll down to the top surface of the transfer push plate 20; the top surface of the second conveying push plate 19 is roughly equivalent to the top surface of the second fixed plate 23. Due to gravity, the shaft-like workpieces on the top surface of the second conveying push plate 19 will roll down to the top surface of the second fixed plate 23 and roll into the discharge port.

[0035] When the rotating block 10, the active block 11 and the rotating block 10 are continuously rotated under the drive of the motor 9, the above working process can be cycled to realize an automatic and orderly conveying process. It should be noted that the diameter of the shaft workpiece applicable to the technical solution of the present invention is preferably greater than 1 / 2 of the thickness of the reciprocating push plate 17, and less than or equal to the thickness of the reciprocating push plate 17. In this way, the technical solution of the present invention can convey the shaft workpieces one by one to the discharge plate 8 in an orderly manner.

[0036] The present invention effectively solves the problem of difficult feeding of shaft workpieces, is ingenious and reliable, enables the shaft workpieces to be arranged quickly and orderly, and completes the function of transporting the shaft workpieces from a low place to a high place.

[0037] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0038] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An efficient conveying mechanism for large shaft workpieces, comprising a frame, a feed port and a discharge port arranged on the frame, wherein the feed port is lower than the discharge port in the vertical direction, and characterized in that: The cam is a device for activating a rotation of the crankshaft and the crankshaft respectively configured to move the first and second handlebars of the camshaft relative to the crankshaft, the second handle being configured to move the first and second handlebars relative to the crankshaft. The cam is an axially coupled machine which is adapted to move the two guide wheels, and the guide wheels are adapted to move the two guide wheels simultaneously.

2. The high-efficiency conveying mechanism for large shaft workpieces according to claim 1 is characterized in that: The length difference between the two conveying push plates is equal to the distance between the first fulcrum and the second fulcrum.

3. The high-efficiency conveying mechanism for large shaft workpieces according to claim 2 is characterized in that: The two conveying push plates and the transfer push plate are arranged in parallel and are arranged at an acute angle to the direction of gravity.

4. The high-efficiency conveying mechanism for large shaft workpieces according to claim 1 is characterized in that: A guide plate is fixed on one side of the reciprocating push plate facing the feed port.

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