Feeding mechanism for piston machining device

By designing a combination of storage cylinder, pusher ramp, and intercepting arc plate, the problem of low automation in existing feeding mechanisms was solved, realizing automatic separation and fixed-distance feeding of piston workpieces, thus improving processing efficiency and quality.

CN223865566UActive Publication Date: 2026-02-03SUZHOU HIGH-TECH ZONE DINGZHENG PRECISION ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202520094693.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-02-03
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

The existing piston processing equipment lacks a material distribution structure in its feeding mechanism, resulting in a low degree of automation, requiring frequent manual intervention, and making it impossible to ensure that piston workpieces maintain a certain distance for streamlined processing.

Method used

A feeding mechanism including a storage cylinder, a pusher plate, a retaining arc plate, and a stepping track was designed. The pusher plate and the retaining arc plate are driven by a motor to achieve the separation of the piston workpiece and its fixed-distance feeding into the processing device. Cooling water pipes are used to avoid heat accumulation.

Benefits of technology

It enables automated separation and fixed-distance feeding of piston workpieces, improving processing efficiency, reducing manual intervention, and ensuring processing quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a feeding mechanism for a piston machining device, and relates to the technical field of machining. Piston workpieces are stacked in the storage cylinder; piston workpieces are stacked and placed in a storage cylinder, the piston workpieces come to a pushing inclined plate and are blocked by an interception arc plate, a first motor drives a swing gear to drive the interception arc plate to rotate in a reciprocating mode at the angle of 180 degrees, and the piston workpieces on the pushing inclined plate are separately conveyed to a stepping rail; then a second motor is started, and the piston workpieces on the stepping rail are fed into a piston machining device at a certain distance through a pushing plate of a feeding structure, so that subsequent machining is facilitated; the first motor and the second motor are synchronously matched with the operation frequency of the piston machining device, streamlined operation of material distribution, feeding and machining is achieved, and the machining operation efficiency is improved. The feeding mechanism solves the problem that an existing feeding mechanism cannot guarantee that a certain distance is kept between piston workpieces to conduct streamlined machining operation.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and more specifically, it relates to a feeding mechanism for a piston processing device. Background Technology

[0002] The piston is one of the most important components of a car engine. During engine operation, it must withstand the enormous pressure generated by the high-temperature gases inside the engine cylinders. Through components such as the piston pin and connecting rod, it transmits this pressure to the crankshaft, converting the thermal energy of the high-temperature gases into the kinetic energy required for the crankshaft to rotate. Pistons are often processed on assembly lines to improve processing efficiency and ensure that all dimensions of the finished piston meet design standards.

[0003] Piston machining requires a feeding mechanism to deliver the piston workpiece into the machining device. Existing feeding mechanisms often only handle loading and lack a separating structure, failing to separate multiple workpieces before feeding them onto the feeding mechanism. This prevents sufficient operating space within the machining device during processing. Before loading, workers need to feed the workpieces onto the feeding mechanism at a certain frequency to ensure they maintain a fixed distance during machining. This process requires significant manual intervention, thus limiting the automation and practicality of the feeding mechanism. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a feeding mechanism for a piston processing device, so as to solve the problem that the existing feeding mechanism cannot guarantee that a certain distance is maintained between the piston and the workpiece for streamlined processing.

[0005] This utility model provides a feeding mechanism for a piston processing device, which is achieved by the following specific technical means:

[0006] A feeding mechanism for a piston processing device includes a storage cylinder; piston workpieces are stacked inside the storage cylinder, and a pushing ramp is provided below the storage cylinder, with one end of the pushing ramp positioned below the storage cylinder and the other end close to and above a stepping track; a limiting groove is formed on the pushing ramp, and piston workpieces are stacked on the upper side of the limiting groove, with the lowest piston workpiece being blocked by a retaining arc plate; the stepping tracks are fixedly connected to each other at both ends by a fixing frame, and six sets of pushing plates are equally spaced between the stepping tracks, with some of the pushing plates pushing piston workpieces in front of them, the piston workpieces supported on the stepping tracks, and a pushing rod fixedly connected below each pushing plate, the pushing rod being rotatably connected to a movable plate via a rotating seat, the movable plate being slidably connected to a fixed plate, a connecting rod being rotatably connected to the bottom of the movable plate, the other end of the connecting rod being rotatably connected to a crankshaft, a rotating shaft being provided at the other end of the crankshaft, the rotating shaft being rotatably inserted through one end of a support rod, the rotating shaft being fixedly connected to the output end of a second motor, and the other end of the support rod being fixedly connected to the bottom of the fixed plate; the storage cylinder, the pushing ramp, the fixing frame, the fixed plate, and the bottom of the second motor are all fixedly supported by a support frame.

[0007] Furthermore, the storage cylinder is surrounded by a cooling water pipe, and condensate flows through the cooling water pipe.

[0008] Furthermore, a side baffle is connected between the higher end of the pusher plate and the storage cylinder.

[0009] Furthermore, the radius of the arc of the intercepting arc plate is equal to the radius of the piston workpiece cylindrical surface. Rotating shafts are provided on both sides of the intercepting arc plate. One side of the rotating shaft is connected to a swing gear. A reciprocating rack meshes with the swing gear below. An extension plate is fixedly connected to one end of the reciprocating rack. A slide bar is provided on one side of the reciprocating rack and the extension plate, and a sliding connection is formed in the sliding track through the slide bar. The sliding track is fixedly supported on the base plate by a fixed bracket.

[0010] Furthermore, the base plate is also rotatably connected to a rotating handle via a fixed bracket. One end of the rotating handle is fixedly connected to the output end of the first motor, and the other end is fixedly connected to one end of a rotating rod. The other end of the rotating rod is rotatably connected to a slider, which is slidably connected in a movable groove. One side of the movable groove is fixedly connected to a reciprocating rack, and the two are perpendicularly intersecting.

[0011] Furthermore, a set of piston workpieces is pushed in front of every two sets of push plates; the push rod is L-shaped, with one end fixedly connected to the push plate and the other end resting on the movable plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, piston workpieces are stacked in a storage cylinder. The piston workpieces come to the pusher ramp and are blocked by the intercepting arc plate. The first motor drives the swing gear to rotate the intercepting arc plate back and forth at an angle of 180 degrees, separating the piston workpieces on the pusher ramp and feeding them into the stepping track. Then, the second motor is started and the pusher plate of the feeding structure feeds the piston workpieces on the stepping track into the piston processing device while maintaining a certain distance between them, thus facilitating subsequent processing. By coordinating the operation frequency of the piston processing device with the first and second motors, the separation, feeding and processing are streamlined, improving the processing efficiency. Attached Figure Description

[0014] Figure 1 This is a first-person view of the present invention.

[0015] Figure 2 This is a second-view perspective view of the present invention.

[0016] Figure 3 This is a schematic diagram of the material distribution structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the pusher plate of this utility model.

[0018] Figure 5 This is a schematic diagram of the feeding structure of this utility model.

[0019] Figure 6 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Storage cylinder; 2. Piston workpiece; 3. Cooling water pipe; 4. Pushing inclined plate; 5. Side baffle; 6. Cutting arc plate; 7. Oscillating gear; 8. Reciprocating rack; 9. Extension plate; 10. Sliding track; 11. Fixed bracket; 12. Base plate; 13. Rotating rod; 14. Slider; 15. Movable slide; 16. Stepping track; 17. Fixed frame; 18. Pushing plate; 19. Pushing rod; 20. Rotating seat; 21. Movable plate; 22. Fixed plate; 23. Connecting rod; 24. Crankshaft; 25. Support rod; 26. First motor; 27. Second motor. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] This utility model provides a feeding mechanism for a piston processing device, including a storage cylinder 1; piston workpieces 2 are stacked inside the storage cylinder 1, and a pushing inclined plate 4 is provided below the storage cylinder 1. The higher end of the pushing inclined plate 4 is below the storage cylinder 1, and the other end is close to and higher than one side of the stepping rail 16; a limiting groove is provided on the pushing inclined plate 4, and piston workpieces 2 are stacked on the upper side of the limiting groove, wherein the piston workpiece 2 at the bottom is blocked by a retaining arc plate 6; the stepping rails 16 are fixedly connected to each other at both ends by fixing brackets 17, and six sets of pushing plates 18 are equally spaced between the stepping rails 16, wherein pistons are pushed in front of some of the pushing plates 18. Workpiece 2, piston workpiece 2 is supported on stepper rail 16. Push rods 19 are fixedly connected to the bottom of push plate 18. Push rods 19 are rotatably connected to movable plate 21 through rotating seat 20. Movable plate 21 is slidably connected to fixed plate 22. Connecting rod 23 is rotatably connected to the bottom of movable plate 21. The other end of connecting rod 23 is rotatably connected to crankshaft 24. A rotating shaft is provided at the other end of crankshaft 24. The rotating shaft is rotatably inserted through one end of support rod 25. The rotating shaft is fixedly connected to the output end of second motor 27. The other end of support rod 25 is fixedly connected to the bottom of fixed plate 22. Storage cylinder 1, push inclined plate 4, fixed frame 17, fixed plate 22 and the bottom of second motor 27 are all fixedly supported by support frame.

[0026] Among them, such as Figure 1 As shown, a cooling water pipe 3 surrounds the outside of the storage cylinder 1, and condensate flows in the cooling water pipe 3; this prevents the piston workpieces 2, which are stacked and not yet cooled inside the storage cylinder 1, from accumulating heat and causing thermal deformation, which would result in a large dimensional error in the finished workpiece.

[0027] Among them, such as Figure 1 As shown, a side baffle 5 is connected between the higher end of the pusher sloping plate 4 and the storage cylinder 1. The side baffle 5 limits the piston workpiece 2 in the storage cylinder 1 from falling onto the pusher sloping plate 4 and then falling from the upper end of the pusher sloping plate 4, thus ensuring that the piston workpiece 2 is smoothly transported down the pusher sloping plate 4 to the stepping track 16.

[0028] Among them, such as Figure 1 and Figure 3As shown, the radius of the arc of the retaining arc plate 6 is equal to the radius of the cylindrical surface of the piston workpiece 2. Rotating shafts are provided on both sides of the retaining arc plate 6. One rotating shaft is connected to a swing gear 7, which meshes with a reciprocating rack 8 below it. One end of the reciprocating rack 8 is fixedly connected to an extension plate 9. A slide bar is provided on one side of the reciprocating rack 8 and the extension plate 9, forming a sliding connection within the sliding track 10. The sliding track 10 is fixedly supported on the base plate 12 by a fixed bracket 11. A rotating handle is also rotatably connected to the base plate 12 via the fixed bracket 11. One end of the rotating handle is fixedly connected to the output end of the first motor 26, and the other end is fixedly connected to the rotating rod 1. At one end of the rotating rod 13, a slider 14 is rotatably connected to the other end. The slider 14 is slidably connected in the movable slide groove 15. One side of the movable slide groove 15 is fixedly connected to the reciprocating rack 8 and the two are perpendicularly intersecting. The first motor 26 is started to drive the rotating rod 13 to rotate around the handle. The slider 14 moves up and down in the movable slide groove 15. At the same time, the movable slide groove 15 drives the reciprocating rack 8 to move back and forth along the sliding track 10. The swing gear 7 and the intercepting arc plate 6 rotate back and forth. Each rotation angle is 180 degrees, thereby separating the piston workpiece 2 stacked on the pushing inclined plate 4 and allowing it to enter the stepping track 16.

[0029] Among them, such as Figure 5 As shown, a set of piston workpieces 2 is pushed in front of every two sets of push plates 18; the push rod 19 is L-shaped, with one end fixedly connected to the push plate 18 and the other end supported on the movable plate 21; after the piston workpieces 2 stored in the storage cylinder 1 are transported to the stepping track 16 by the push inclined plate 4, the second motor 27 is started to drive the crankshaft 24 to rotate, and the movable plate 21 is driven to reciprocate along the fixed plate 22 through the connecting rod 23. When the movable plate 21 moves forward, the push plate 18 pushes the piston workpieces 2 on the stepping track 16 forward, and the push rod 19 supports the push plate 18; when the movable plate 21 moves backward, the upper end of the push rod 19 is pressed against the upper end of the piston workpiece 2, causing the lower end to tilt up, and the piston workpiece 2 will not move backward with the push plate 18, so that the piston workpiece 2 moves forward in a stepping manner, and the adjacent piston workpieces 2 on the stepping track 16 maintain a fixed distance, so as to facilitate feeding into the piston processing device for processing.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In this invention, piston workpieces 2 are stacked inside the storage cylinder 1. The piston workpieces 2 come onto the pusher ramp 4 and are blocked by the intercepting arc plate 6. The first motor 26 is started, driving the rotating rod 13 to rotate around the handle. The slider 14 moves up and down reciprocally within the movable slide groove 15. Simultaneously, the movable slide groove 15 drives the reciprocating rack 8 to move reciprocally along the sliding track 10. The swing gear 7 and the intercepting arc plate 6 reciprocate, rotating 180 degrees each time, thereby separating the piston workpieces 2 stacked on the pusher ramp 4 and allowing them to enter the stepping track 16. The piston workpieces 2 stored in the storage cylinder 1 are separated and transported to the stepping track 16 by the pusher ramp 4 and the intercepting arc plate 6. After entering the track 16, the second motor 27 is started, driving the crankshaft 24 to rotate. Through the connecting rod 23, the movable plate 21 moves back and forth along the fixed plate 22. When the movable plate 21 moves forward, the push plate 18 pushes the piston workpiece 2 on the stepping track 16 forward, and the push rod 19 supports the push plate 18. When the movable plate 21 moves backward, the upper end of the push rod 19 is pressed against the upper end of the piston workpiece 2, causing its lower end to tilt up. The piston workpiece 2 will not move backward with the push plate 18, so that the piston workpiece 2 moves forward in a stepping manner, and the adjacent piston workpieces 2 on the stepping track 16 maintain a fixed distance, which facilitates feeding into the piston processing device for processing.

[0032] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A feeding mechanism for a piston processing device, characterized in that: The system includes a storage cylinder (1); piston workpieces (2) are stacked inside the storage cylinder (1), and a pusher plate (4) is provided below the storage cylinder (1). The higher end of the pusher plate (4) is below the storage cylinder (1), and the other end is close to and higher than the side of the stepping rail (16). A limiting groove is provided on the pusher plate (4), and piston workpieces (2) are stacked on the upper side of the limiting groove. The piston workpiece (2) at the bottom is blocked by a retaining arc plate (6). The stepping rails (16) are fixedly connected to each other at both ends by fixing brackets (17). Six sets of pusher plates (18) are equally spaced between the stepping rails (16). Piston workpieces (2) are pushed in front of some of the pusher plates (18), and the piston workpieces (2) are supported on the stepping rails. On the track (16), push rods (19) are fixedly connected below the push plate (18). The push rods (19) are rotatably connected to the movable plate (21) via the rotating seat (20). The movable plate (21) is slidably connected to the fixed plate (22). The bottom of the movable plate (21) is rotatably connected to the connecting rod (23). The other end of the connecting rod (23) is rotatably connected to the crankshaft (24). The other end of the crankshaft (24) is provided with a rotating shaft. The rotating shaft is rotatably inserted through one end of the support rod (25). The rotating shaft is fixedly connected to the output end of the second motor (27). The other end of the support rod (25) is fixedly connected to the bottom of the fixed plate (22). The storage cylinder (1), the push inclined plate (4), the fixed frame (17), the fixed plate (22), and the bottom of the second motor (27) are all fixedly supported by the support frame.

2. The feeding mechanism for a piston processing device as described in claim 1, characterized in that: The storage cylinder (1) is surrounded by a cooling water pipe (3), and condensate flows in the cooling water pipe (3).

3. The feeding mechanism for a piston processing device as described in claim 1, characterized in that: A side baffle (5) is connected between the end of the higher side of the pusher (4) and the storage cylinder (1).

4. The feeding mechanism for a piston processing device as described in claim 1, characterized in that: The radius of the arc of the intercepting arc plate (6) is equal to the radius of the cylindrical surface of the piston workpiece (2). The intercepting arc plate (6) has a rotating shaft on both sides. One side of the rotating shaft is connected to the swing gear (7). The swing gear (7) meshes with the reciprocating rack (8) below. One end of the reciprocating rack (8) is fixedly connected to the extension plate (9). The reciprocating rack (8) and the extension plate (9) are provided with a slide bar on one side, and a sliding connection is formed in the sliding track (10) through the slide bar. The sliding track (10) is fixedly supported on the base plate (12) by the fixed bracket (11).

5. The feeding mechanism for a piston processing device as described in claim 4, characterized in that: The base plate (12) is also rotatably connected to a rotating handle via a fixed bracket (11). One end of the rotating handle is fixedly connected to the output end of the first motor (26), and the other end is fixedly connected to one end of the rotating rod (13). The other end of the rotating rod (13) is rotatably connected to a slider (14). The slider (14) is slidably connected in the movable slide groove (15). One side of the movable slide groove (15) is fixedly connected to the reciprocating rack (8), and the two are perpendicularly intersecting.

6. The feeding mechanism for a piston processing device as described in claim 1, characterized in that: A set of piston workpieces (2) is pushed in front of every two sets of push plates (18); the push rod (19) is L-shaped, with one end fixedly connected to the push plate (18) and the other end resting on the movable plate (21).