Automatic feeding mechanism for crankshaft driven by air cylinder

Abstract

The utility model relates to an automatic crankshaft feeding mechanism driven by an air cylinder. The automatic crankshaft feeding mechanism comprises two frames which are distributed side by side in the front-back direction. Transverse bases are installed on the left side and the right side between the two frames, baffles are arranged above the two frames, outer side supporting plates are installed on the inner sides of the baffles, and a plurality of outer side supporting grooves are evenly distributed in the tops of the outer side supporting plates in the left-right direction. An inner side supporting plate is arranged on the inner side of the outer side supporting plate and can freely move in the vertical direction, and a plurality of inner side supporting grooves are evenly distributed in the top of the inner side supporting plate in the left-right direction. According to the feeding mechanism, the crankshaft at the first position is jacked up in a stepping mode, the crankshaft is conveyed to the tail end of the feeding mechanism step by step and waits for being grabbed by a second transferring mechanical arm, the working rhythm is reasonable, and transmission and temporary storage of the crankshaft can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of crankshaft processing production lines, and in particular to an automatic feeding mechanism for crankshafts driven by a cylinder. Background Technology

[0002] In automated crankshaft machining using cylindrical grinding machines, production lines typically have two machines operating in tandem. After the first grinding machine completes its machining, a transfer robot on one side automatically picks up the finished crankshaft and places it on a buffer line. Then, a transfer robot on the other side of the second grinding machine picks up the crankshaft from the buffer line for machining on the second grinding machine. However, commonly used buffer lines in existing technologies typically consist of conveyor belts or buffer racks. Buffer racks cannot achieve crankshaft transmission, and while conveyor belts can achieve crankshaft transmission, the transmission process is difficult to control and is not easily compatible with external transfer robots.

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a cylinder-driven crankshaft automatic feeding mechanism, which would make it more valuable for industrial applications. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an automatic feeding mechanism for a cylinder-driven crankshaft.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic feeding mechanism for a cylinder-driven crankshaft includes two frames arranged side by side along the front-rear direction, with several columns installed at the bottom of the frames.

[0007] A transverse base is installed on both the left and right sides between the two frames. A baffle is installed on the top of both frames. The baffle can move along the front and back direction on the transverse base below. An outer support plate is installed on the inner side of the baffle. Several outer support grooves are evenly distributed on the top of the outer support plate along the left and right direction.

[0008] An inner support plate is provided on the inner side of the outer support plate. The inner support plate can move freely in the vertical direction. Several inner support grooves are evenly distributed on the top of the inner support plate along the left and right direction. The inner support grooves are adapted to the outer support grooves on the outer side, and the distance between two adjacent outer support grooves is equal to the distance between two adjacent inner support grooves.

[0009] As a further improvement of this utility model, the left and right sides of the baffle are respectively installed on the lower horizontal adjustment plate. The bottom of the horizontal adjustment plate is connected to the lower horizontal guide rail through the horizontal slider, and the horizontal guide rail is installed on the horizontal base along the front and back direction.

[0010] As a further improvement of this utility model, a horizontal adjustment locking device is installed on one side of the bottom of the horizontal adjustment plate, and horizontal adjustment limiting blocks are respectively installed on the horizontal bases on the front and rear sides of the horizontal guide rail.

[0011] As a further improvement of this utility model, a feeding cylinder is installed on the left side of the frame. The driving end of the feeding cylinder is connected to the lifting plate on the right side in sequence through the feeding cylinder floating joint and the floating joint connector. A lifting cylinder is installed in the middle of the bottom of the lifting plate. The driving end of the top of the lifting cylinder is connected to the inner support plate mounting frame above through the lifting cylinder floating joint. The inner support plate is installed on the top inner side of the inner support plate mounting frame.

[0012] As a further improvement of this utility model, lifting guide shafts are installed on both the left and right sides of the lifting support plate via linear bearings, and the bottom of the lifting guide shafts is connected to the inner support plate mounting bracket above.

[0013] As a further improvement of this utility model, a feeding guide rail distributed in the left and right direction is installed on the frame below the lifting plate, and the bottom of the lifting plate is connected to the feeding guide rail below through a feeding slider.

[0014] As a further improvement of this utility model, at least one lateral adjustment linear shaft distributed along the front-back direction is installed between the two lifting plates. Lateral adjustment linear bearing mounting seats are respectively installed on the lifting plates on the front and rear sides of the lateral adjustment linear shaft. The lateral adjustment linear shaft is connected to the lateral adjustment linear bearings on the lateral adjustment linear bearing mounting seats on the front and rear sides respectively.

[0015] As a further improvement of this utility model, a position sensor for sensing the crankshaft is installed on the right side of the baffle.

[0016] By means of the above solution, this utility model has at least the following advantages:

[0017] The feeding mechanism of this invention lifts the crankshaft at the first position through a stepping method, and transmits the crankshaft step by step to the end of the feeding mechanism, waiting for the second transfer robot to grab it. The working cycle is relatively reasonable, and it can realize the transmission and temporary storage of the crankshaft.

[0018] In this invention, the crankshaft is located on the outer support groove of the outer support plate during insertion and removal, and is not in motion, which facilitates compatibility with external transfer robots.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an automatic feeding mechanism for a cylinder-driven crankshaft according to this utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure on the other side.

[0023] The meanings of the labels in the figures are as follows.

[0024] 1. Column; 2. Frame; 3. Feeding cylinder; 4. Horizontal guide rail; 5. Inner support plate; 6. Horizontal slider; 7. Outer support plate; 8. Baffle; 9. Crankshaft; 10. Horizontal adjustment linear bearing mounting seat; 11. Horizontal adjustment linear bearing; 12. Horizontal adjustment linear shaft; 13. Position sensor; 14. Horizontal adjustment locking device; 15. Horizontal adjustment limit block; 16. Feeding cylinder floating joint; 17. Floating joint connector; 18. Lifting guide shaft linear bearing; 19. Lifting guide shaft; 20. Lifting cylinder; 21. Lifting support plate; 22. Horizontal adjustment plate; 23. Lifting cylinder floating joint; 24. Feeding guide rail; 25. Inner support plate mounting bracket. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] The first embodiment of this utility model:

[0028] like Figures 1-2 As shown, an automatic feeding mechanism for a crankshaft driven by a cylinder mainly includes a frame 2, a feeding cylinder 3, an inner support plate 5, an outer support plate 7, a baffle 8, a lifting cylinder 20, and a lifting support plate 21.

[0029] There are two frames 2, which are arranged side by side along the front-to-back direction. The frames 2 are arranged along the left-to-right direction. The bottom left and right sides of the frames 2 are equipped with columns 1 for support.

[0030] A baffle 8 parallel to the frame 2 is installed above the frame 2. An outer support plate 7 is fixedly installed on the inner side of the baffle 8. Several outer support grooves for supporting the crankshaft 9 are evenly distributed on the outer support plate 7 along the left and right directions. The front and rear sides of the crankshaft 9 are respectively placed in the outer support grooves on the front and rear outer support plates 7.

[0031] To accommodate crankshafts 9 of varying widths, the two baffles 8 can move freely a distance in the front-to-back direction. Specifically, transverse bases are installed on both the left and right sides between the two frames 2. The bottom of the baffles 8 is mounted on a transverse adjustment plate 22. The transverse adjustment plate 22 moves back and forth on the transverse guide rail 4 via a transverse slider 6 and is limited by transverse adjustment limit blocks 15 on both sides. After the transverse adjustment plate 22 is in position, it can be locked by a transverse adjustment lock 14, which is installed at the bottom of the transverse adjustment plate 22.

[0032] An inner support plate 5 is provided on the inner side of the outer support plate 7. Several inner support grooves for supporting the crankshaft 9 are evenly distributed along the left-right direction on the inner support plate 5. These inner support grooves are adapted to the outer support grooves (i.e., the distance between two adjacent outer support grooves is equal to the distance between two adjacent inner support grooves). The inner and outer support grooves have the same shape, such as... Figure 1 or Figure 2 The V-groove or other adaptable arc-shaped structures are used.

[0033] When the lifting cylinder 20 installed on the lifting plate 21 lifts the inner support plate mounting bracket 25 above, it can simultaneously drive the inner support plate 5 to lift, and then lift the crankshaft 9 located in the outer support groove. Then, the feeding cylinder 3 drives the lifting plate 21 to move to the right. When it moves to the position of the next outer support groove, the lifting cylinder 20 drives the crankshaft 9 to fall and place it on the outer support groove. This cycle is repeated so that the leftmost crankshaft 9 moves to the rightmost position.

[0034] During the lifting process of the inner support plate 5, in order to ensure a more stable operation, lifting guide shafts 19 are installed on both the left and right sides of the lifting support plate 21 through lifting guide shaft linear bearings 18. The bottom of the lifting guide shaft 19 is connected to the inner support plate mounting frame 25 above, so that the inner support plate mounting frame 25 used to install the inner support plate 5 can operate more stably in the vertical direction.

[0035] During the forward and backward movement of the two baffles 8, the lateral adjustment linear shaft 12 can provide better guidance. The front and rear sides of the lateral adjustment linear shaft 12 are connected to the lateral adjustment linear bearings 11 on the lateral adjustment linear bearing mounting seats 10 on the front and rear sides, respectively. During the forward and backward movement of the two baffles 8, the lateral adjustment linear shaft 12 can move forward and backward synchronously.

[0036] When the crankshaft 9 is driven sequentially from left to right and reaches its position, it can be sensed by the position sensor 13 on the right side.

[0037] Brief description of the working process of this utility model:

[0038] The crankshaft is transferred from the preceding transfer robot to the front end of the feeding mechanism of this utility model. The crankshaft is driven by two sets of cylinder mechanisms, one for lifting and one for advancing, to perform the feeding action. The specific actions are as follows:

[0039] The lifting cylinder 20 drives the inner support plate 5 to lift the workpiece (crankshaft 9) placed on the outer support plate 7. The transverse feeding cylinder 3 then feeds the lifted inner support plate 5 forward by a fixed length. The lifted inner support plate 5 then descends, and the lifted workpiece falls into the outer support groove of the next outer support plate 7.

[0040] The inner support plate 5 is mounted on the forward feeding cylinder 3, and the stroke of the feeding cylinder 3 is equal to the distance between two adjacent outer support slots.

[0041] In addition, there are many specifications for the workpieces, and the length and diameter differences are particularly large. Therefore, an adjustment mechanism was made in the length direction (i.e., the baffle 8 can be moved back and forth). When switching between different lengths of the workpieces, the screws on one or both sides of the horizontal adjustment locking device 14 can be loosened manually and moved to the corresponding width.

[0042] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cylinder drive crankshaft automatic feeding mechanism, comprising two frames (2) arranged side by side along the front-back direction, and a plurality of columns (1) installed at the bottom of the frame (2). Characterized in that: A lateral base is installed on both sides of the two frames (2), and a baffle (8) is arranged above the two frames (2), which can move along the front-back direction on the lateral base below, an outer support plate (7) is installed on the inner side of the baffle (8), and a plurality of outer support grooves are uniformly distributed on the top of the outer support plate (7) along the left-right direction; An inner support plate (5) is arranged on the inner side of the outer support plate (7), which can move freely in the vertical direction, a plurality of inner support grooves are uniformly distributed on the top of the inner support plate (5) along the left-right direction, the inner support grooves are matched with the outer support grooves on the outer side, and the spacing between adjacent two outer support grooves is equal to the spacing between adjacent two inner support grooves.

2. A cylinder-driven crank axle automatic feeding mechanism according to claim 1, characterized in that The left and right sides of the baffle (8) are respectively installed on the lateral adjusting plate (22) below, the bottom of the lateral adjusting plate (22) is connected with the lateral guide rail (4) below through the lateral sliding block (6), and the lateral guide rail (4) is installed on the lateral base along the front-back direction.

3. A cylinder-driven crank axle automatic feed mechanism according to claim 2, wherein A lateral adjusting lock (14) is installed on one side of the bottom of the lateral adjusting plate (22), and a lateral adjusting limiting block (15) is installed on the lateral base on both sides of the lateral guide rail (4).

4. A cylinder-driven crank axle automatic feeding mechanism according to claim 1, wherein A feeding cylinder (3) is installed on the left side of the frame (2), the driving end of the feeding cylinder (3) is connected with the right side of the lifting support plate (21) through the feeding cylinder floating joint (16) and the floating joint connecting piece (17) in sequence; a lifting cylinder (20) is installed on the bottom of the lifting support plate (21), the driving end of the top of the lifting cylinder (20) is connected with the inner support plate mounting bracket (25) above through the lifting cylinder floating joint (23), and the inner support plate (5) is installed on the top of the inner side of the inner support plate mounting bracket (25).

5. A cylinder-driven crank axle automatic feed mechanism as set forth in claim 4, characterized in that, Lifting guide shafts (19) are installed on both sides of the lifting support plate (21) through the lifting guide shaft linear bearings (18), and the bottom of the lifting guide shaft (19) is connected with the inner support plate mounting bracket (25) above.

6. A cylinder-driven crank axle automatic feeding mechanism according to claim 4, wherein A feeding guide rail (24) is installed on the frame (2) below the lifting support plate (21) along the left-right direction, and the bottom of the lifting support plate (21) is connected with the feeding guide rail (24) below through the feeding sliding block.

7. A cylinder driven crank automatic feed mechanism as claimed in claim 4, wherein, At least one lateral adjusting linear shaft (12) is installed between the two lifting support plates (21) along the front-back direction, and a lateral adjusting linear bearing mounting seat (10) is installed on the lifting support plate (21) on both sides of the lateral adjusting linear shaft (12), and the lateral adjusting linear shaft (12) is connected with the lateral adjusting linear bearing (11) on the lateral adjusting linear bearing mounting seat (10) on both sides.

8. A cylinder driven crank automatic feed mechanism as claimed in claim 1, wherein, A position sensor (13) for sensing the position of the crankshaft (9) is mounted on the right side of the baffle (8).

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