An engine piston machining apparatus

By combining an electric telescopic rod with a limiting device, precise drilling and cooling of the engine piston are achieved, solving the problems of poor positional accuracy and low efficiency in existing equipment, and improving the stability and efficiency of the processing equipment.

CN224673845UActive Publication Date: 2026-08-25RIZHAO DOUBLE DRIVE MASCH MFG CO LTD
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Patent Information

Application Number
CN202522039527.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-25
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

Existing engine piston machining equipment suffers from problems such as poor position repeatability, susceptibility to collisions, difficult maintenance, and low machining efficiency during the drilling process.

Method used

It uses an electric telescopic rod, a limit rod, and a limit nut to adjust the piston position via an electric claw disc, combined with a movable plate and a fixed drill bit to achieve precise drilling, and is cooled by a cooling water pipe.

Benefits of technology

It improves drilling accuracy, avoids direct collision between the piston and the drill bit, simplifies the maintenance process, and increases processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to piston processing technical field and disclose an engine piston processing equipment, including processing box, the top of processing box is provided with the box cover, the upper position of one side of processing box is slidably installed with the movable plate, the upper position of the other side of processing box is installed with fixed drill, and the drive shaft end of fixed drill is connected with drill bit through drill chuck, the inboard fixed connection of movable plate has a plurality of mounting plates, the outside fixed mounting of movable plate has a plurality of electric telescopic handle no.
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Description

Technical Field

[0001] This utility model relates to the field of piston processing technology, specifically to an engine piston processing equipment. Background Technology

[0002] The engine piston is a core component of an internal combustion engine. It is a reciprocating component in the cylinder block of a car engine. The basic structure of the piston can be divided into the top, head, and skirt. Its main function is to withstand the combustion pressure in the cylinder and transmit this force to the crankshaft through the piston pin and connecting rod. The piston is usually made of high-strength aluminum alloy, which has the advantages of light weight and good thermal conductivity. In the process of manufacturing the piston mechanism, it is necessary to use appropriate machining equipment to drill holes in the piston.

[0003] A search revealed a Chinese patent for processing equipment for an engine piston mechanism, publication number CN216502455U. The equipment includes a housing, a cylinder fixedly connected to the left outer wall of the housing, a push rod fixedly connected to the right side of the cylinder extending into the housing, and a clamping plate fixedly connected to the right side of the push rod.

[0004] The above-mentioned device drives the clamping plate to move to the right through the cooperation of the cylinder and the push rod. The clamping plate drives the piston to be processed to move to the right, thus completing the drilling process of the piston. The coolant inside the cooling box is extracted by the water pump and sprayed on the drilling position to achieve a cooling effect and eliminate the safety hazards caused by artificial cooling. However, it uses a fixed-position bench drill to drill the piston parts, and its movement structure is relatively simple, only driven by a cylinder. Although it can stop the cylinder push rod from extending halfway by holding the air, the position repeatability is poor, it is difficult to limit the advancing distance, and the piston is prone to directly colliding with the drill bit. On the other hand, using a servo cylinder for driving involves more parts, making maintenance more difficult. Moreover, the piston is picked up and put down by repeatedly opening and closing the box cover. When processing a large number of parts, the repeated picking and putting actions by the personnel result in low processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an engine piston processing equipment that can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An engine piston processing device includes a processing box, a box cover is provided at the top of the processing box, a movable plate is slidably installed on one side of the processing box near the upper position, and a fixed drill is installed on the other side of the processing box near the upper position, and a drill bit is connected to the end of the drive shaft of the fixed drill through a drill chuck. Several mounting plates are fixedly connected to the inner side of the movable plate, and several electric telescopic rods corresponding to the positions of the mounting plates are fixedly installed on the outer side of the movable plate. The push rod of the electric telescopic rod passes through both sides of the movable plate and the mounting plate and is connected to an electric claw disc. A piston body is fixed to the end of the electric claw disc away from the electric telescopic rod. The electric claw disc is extended by the push rod of the electric telescopic rod to adjust the position of the piston body. Two limiting rods are fixedly connected to the side of the electric claw disc away from the fixed drill. The end of the limiting rod away from the electric claw disc passes through both sides of the movable plate and the mounting plate. The limiting rod is slidably connected to the mounting plate and the movable plate, and the end of the limiting rod away from the electric claw disc is threaded with a limiting nut. The limiting nut contacts the movable plate to limit the electric claw disc from moving further toward the drill bit, thereby limiting the drilling depth of the piston body.

[0007] Preferably, an electric telescopic rod two is installed inside the processing box on one side. The push rod end of the electric telescopic rod two is connected to the movable plate through a connecting block. The extension and retraction of the push rod of the electric telescopic rod two is used to push the movable plate to slide laterally on the side of the processing box.

[0008] Preferably, the front end of the processing box is provided with a through-hole that is compatible with the electric gripper disc, so that the electric gripper disc and piston body can pass through the through-hole when the push rod of the electric telescopic rod is retracted to its limit.

[0009] Preferably, a filter box is provided at the bottom of the processing box, and a circulation box is installed at the bottom of the filter box. A circulation pump is installed on the side of the circulation box away from the movable plate, and the liquid inlet of the circulation pump extends into the circulation box. The liquid outlet of the circulation pump is connected to a cooling water pipe.

[0010] Preferably, the end of the cooling water pipe away from the circulation tank extends into the processing box, and the position of the cooling water pipe outlet is adapted to match the drill bit and piston body. The bottom of the processing box is provided with a manifold port adapted to match the filter box.

[0011] Preferably, an electrical control box is installed at the upper front end of the processing box, and the electrical control box is electrically connected to the electric telescopic rod one, the electric claw plate, the electric telescopic rod two, and the circulation pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the coordinated arrangement of an electric telescopic rod, a limiting rod, a limiting nut, and an electric claw disc, allows for the slow and gentle pushing of the piston to contact the drill bit during drilling of the piston body. This avoids direct collision and damage. Furthermore, the limiting nut's contact with the machining box limits the piston's travel distance, preventing excessive contact and ensuring high adjustment precision.

[0013] By setting up movable plates, connecting blocks, processing boxes, mounting plates, and electric grippers to work together, the piston bodies are fixed on multiple electric grippers during processing, making it easy to drill multiple piston bodies in sequence. This provides high flexibility, and the processed piston bodies are pushed out of the processing box for easy handling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an engine piston processing device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the electric claw disc, movable plate, and drill bit in the embodiments of this utility model; Figure 3 This is a top view of the electric claw disc and the electric telescopic rod in the embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting nut, movable plate, and mounting plate in the embodiment of this utility model.

[0015] In the diagram: 1. Machining box; 2. Box cover; 3. Fixed drill; 4. Drill bit; 5. Movable plate; 6. Mounting plate; 7. Electric telescopic rod one; 8. Electric claw plate; 9. Piston body; 10. Limiting rod; 11. Limiting nut; 12. Connecting block; 13. Through port; 14. Filter box; 15. Circulation box; 16. Cooling water pipe; 17. Electrical control box; 18. Electric telescopic rod two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Combination Figures 1-4 An engine piston processing device includes a processing box 1, a box cover 2 at the top of the processing box 1, a movable plate 5 slidably installed on one side of the processing box 1 near the upper position, a fixed drill 3 installed on the other side of the processing box 1 near the upper position, and a drill bit 4 connected to the end of the drive shaft of the fixed drill 3 through a drill chuck.

[0018] See Figure 2 and Figure 3Furthermore, several mounting plates 6 are fixedly connected to the inner side of the movable plate 5, and several electric telescopic rods 7 corresponding to the positions of the mounting plates 6 are fixedly installed on the outer side of the movable plate 5. The push rods of the electric telescopic rods 7 pass through the movable plate 5 and the mounting plates 6 and are connected to electric claw discs 8. A piston body 9 is fixed to the end of the electric claw disc 8 away from the electric telescopic rods 7. The electric claw disc 8 is extended by the push rods of the electric telescopic rods 7 to adjust the position of the piston body 9. A filter box 14 is provided at the bottom of the processing box 1, and a circulation box 15 is installed at the bottom of the filter box 14. The side of the circulation box 15 away from the movable plate 5 is dark. A circulating pump is installed, and the pump's suction port extends into the circulating tank 15. The pump's outlet is connected to a cooling water pipe 16. The end of the cooling water pipe 16 away from the circulating tank 15 extends into the processing box 1. The outlet position of the cooling water pipe 16 is compatible with the drill bit 4 and the piston body 9. The bottom of the processing box 1 is provided with a manifold port compatible with the filter box 14. An electric telescopic rod 18 is installed on one side inside the processing box 1. The end of the push rod of the electric telescopic rod 18 is connected to the movable plate 5 through a connecting block 12. The extension and retraction of the push rod of the electric telescopic rod 18 is used to push the movable plate 5 to slide laterally on the side of the processing box 1.

[0019] Specifically, after the piston body 9 is fixed on the electric gripper plate 8 and the electric telescopic rod 18 is in its initial state, the operator can control the push rod of the foremost electric telescopic rod 7 to extend and control the fixed drill 3 to drive the drill bit 4 to rotate. When the electric telescopic rod 7 slowly pushes the piston body 9 fixed on the electric gripper plate 8 to contact the drill bit 4, drilling is performed. At this time, the coolant can be sprayed onto the contact point between the piston body 9 and the drill bit 4 by connecting an external infusion pump to the cooling water pipe 16 for cooling and heat dissipation. When the electric telescopic rod 7 pushes the electric gripper plate 8 to move, the rear end of the electric gripper plate 8 is connected to a limit rod 10, and the limit rod 10 is slidably connected to the movable plate 5 and the mounting plate 6, which increases the stability of the electric gripper plate 8 and prevents it from swinging excessively. The limit rod 10 is threaded with a limit nut 11, and the limit nut 11 contacts the movable plate 5 to prevent the push rod of the electric telescopic rod 7 from extending too far, thereby limiting the stroke of the electric gripper plate 8 and preventing over-drilling.

[0020] Example 2 See Figure 2 and Figure 4Furthermore, based on Embodiment 1, two limiting rods 10 are fixedly connected to the side of the electric claw disk 8 away from the fixed drill 3. The end of the limiting rod 10 away from the electric claw disk 8 passes through both sides of the movable plate 5 and the mounting plate 6. The limiting rod 10 is slidably connected to the mounting plate 6 and the movable plate 5. The end of the limiting rod 10 away from the electric claw disk 8 is threadedly connected to a limiting nut 11. The limiting nut 11 contacts the movable plate 5 to limit the electric claw disk 8 from continuing to move towards the drill bit 4, thereby limiting the drilling depth of the piston body 9. The front end of the processing box 1 is provided with a through-hole 13 that is compatible with the electric claw disk 8. When the push rod of the electric telescopic rod 1 7 is retracted to its limit, the electric claw disk 8 and the piston body 9 can pass through the through-hole 13. An electrical control box 17 is installed at the upper position of the front end of the processing box 1. The electrical control box 17 is electrically connected to the electric telescopic rod 1 7, the electric claw disk 8, the electric telescopic rod 2 18, and the circulation pump.

[0021] Specifically, after the current electric gripper 8 has finished processing, the electric telescopic rod 7 can be controlled to retract, thereby moving the piston body 9 away from the drill bit 4 and ensuring that it can pass through the through-hole 13 after retraction to prevent collisions during subsequent movement. Then, the electric telescopic rod 18 can be activated. Since the drive shaft of the electric telescopic rod 18 is connected to the movable plate 5 through the connecting block 12, and the movable plate 5 is slidably mounted on the processing box 1, the movable plate 5 can be moved by controlling the extension of the drive shaft of the electric telescopic rod 18. At this time, the parameters at the limit nut 11 can be set according to the position of the drill bit 4 as needed. Then, the electrical control box 17 controls the drill bit 4 and the electric telescopic rod to adjust the parameters. Data is transmitted back from point 218, and the push rod extension and retraction of electric telescopic rod 218 are adjusted to achieve the purpose of drilling holes sequentially. That is, after the previous electric telescopic rod 17 and electric claw disk 8 work together to push the piston body 9 to the drill bit 4 for drilling, and after the push rod of electric telescopic rod 17 is fully reset, the extension of electric telescopic rod 218 can be controlled to extend to a suitable distance until the piston body 9 on the next electric claw disk 8 is aligned with the drill bit 4 again. Then, a signal is sent to start the corresponding electric telescopic rod 17 to push the electric claw disk 8 to move, thereby drilling the next piston body 9. This step is repeated to complete all the drilling steps of the piston body 9.

[0022] In actual operation, the steps of connecting the cable by drag chain in the existing technology will not be described here. When the piston body 9 is fixed on the electric claw plate 8 and the limit nut 11 is in the initial state, the operator can control the push rod of the foremost electric telescopic rod 7 to extend and control the fixed drill 3 to drive the drill bit 4 to rotate. When the electric telescopic rod 7 slowly pushes the piston body 9 fixed on the electric claw plate 8 to contact the drill bit 4, drilling can be performed. At this time, the coolant can be sprayed onto the contact point between the piston body 9 and the drill bit 4 by connecting the external infusion pump to the cooling water pipe 16 to cool down and dissipate heat. Furthermore, when the electric telescopic rod 7 pushes the electric gripper plate 8 to move, the rear end of the electric gripper plate 8 is connected to the limit rod 10, and the limit rod 10 is slidably connected to the movable plate 5 and the mounting plate 6, which can increase the stability of the electric gripper plate 8 and prevent it from swinging excessively. The limit rod 10 is threadedly connected to the limit nut 11, and the limit nut 11 contacts the movable plate 5 to prevent the electric telescopic rod 7 from extending too far, so as to limit the stroke of the electric gripper plate 8 and avoid excessive drilling. The coolant sprayed through the cooling water pipe 16 will flow into the filter box 14 from the bottom confluence of the processing box 1. The coolant filtered by the filter box 14 will enter the circulation box 15 for recycling. After the current electric claw disk 8 is processed, the electric telescopic rod 1 7 can be controlled to retract so as to drive the piston body 9 away from the drill bit 4, and ensure that it can pass through the through hole 13 after retraction to prevent collision during subsequent movement. Then, the electric telescopic rod 2 18 can be started. Since the drive shaft of the electric telescopic rod 2 18 is connected to the movable plate 5 through the connecting block 12, and the movable plate 5 is slidably installed on the processing box 1, the movable plate 5 can be moved by controlling the extension of the drive shaft of the electric telescopic rod 2 18 to achieve the purpose of drilling holes in sequence. That is, after the previous electric telescopic rod 7 and electric claw disk 8 work together to push the piston body 9 to the drill bit 4 to complete the drilling, and after the electric telescopic rod 7 push rod is fully reset, the extension of the limit nut 11 can be controlled to extend to a suitable distance until the piston body 9 on the next electric claw disk 8 is aligned with the drill bit 4 again. Then, a signal is sent to start the corresponding electric telescopic rod 7 to push the electric claw disk 8 to move, thereby drilling the next piston body 9. This step is repeated to complete all the drilling steps of the piston body 9. The processed piston body 9 will pass through the opening 13 as the movable plate 5 moves, and be pushed out of the processing box 1. At this time, the personnel can remove the processed piston body 9 as needed and fix the new piston body 9 at the electric claw plate 8. After all subsequent processing is completed, the limit nut 11 can be reset again. At this time, the piston body 9 has completed the replacement process. The drilling process can be carried out again according to the above steps. It is not necessary to frequently remove the box cover 2 for replacement, which can effectively reduce the impact on processing efficiency. Furthermore, the display and control components and modules used in the aforementioned electric telescopic rod 2 18, electric telescopic rod 1 7, electric claw disc 8, and fixed drill 3 are all existing technologies, which can be fully implemented by those skilled in the art. The power supply is also common knowledge in the field and need not be elaborated upon. No specific model is limited, and the technical solution described in this embodiment shall prevail. The content protected by this utility model does not involve the improvement of software and methods.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An engine piston processing equipment, characterized in that: The processing box (1) is provided with a box cover (2) at the top. A movable plate (5) is slidably installed on one side of the processing box (1) near the upper position. A fixed drill (3) is installed on the other side of the processing box (1) near the upper position. The end of the drive shaft of the fixed drill (3) is connected to a drill bit (4) through a drill chuck. Several mounting plates (6) are fixedly connected to the inner side of the movable plate (5). Several electric telescopic rods (7) corresponding to the positions of the mounting plates (6) are fixedly installed on the outer side of the movable plate (5). The push rod of the electric telescopic rod (7) passes through the movable plate (5) and the two sides of the mounting plate (6) and is connected to an electric claw plate (8). A piston body (9) is fixed to the end of the electric claw plate (8) away from the electric telescopic rod (7). The electric claw plate (8) is extended by the push rod of the electric telescopic rod (7) to adjust the position of the piston body (9). (8) Two limiting rods (10) are fixedly connected on the side away from the fixed drill (3). The end of the limiting rod (10) away from the electric claw disk (8) passes through both sides of the movable plate (5) and the mounting plate (6). The limiting rod (10) is slidably connected to the mounting plate (6) and the movable plate (5). The end of the limiting rod (10) away from the electric claw disk (8) is threadedly connected to a limiting nut (11). The limiting nut (11) contacts the movable plate (5) to limit the electric claw disk (8) from continuing to move towards the drill bit (4) and thus limit the drilling depth of the piston body (9).

2. The engine piston processing equipment according to claim 1, characterized in that: An electric telescopic rod 2 (18) is installed inside the processing box (1) on one side. The end of the push rod of the electric telescopic rod 2 (18) is connected to the movable plate (5) through the connecting block (12). The extension and retraction of the push rod of the electric telescopic rod 2 (18) is used to push the movable plate (5) to slide laterally on the side of the processing box (1).

3. The engine piston processing equipment according to claim 2, characterized in that: The front end of the processing box (1) is provided with a through-hole (13) that is compatible with the electric claw disk (8). When the push rod of the electric telescopic rod (7) is retracted to the limit, the electric claw disk (8) and the piston body (9) can pass through the through-hole (13).

4. The engine piston processing equipment according to claim 2, characterized in that: The bottom of the processing box (1) is provided with a filter box (14), and the bottom of the filter box (14) is provided with a circulation box (15). The circulation box (15) is equipped with a circulation pump on the side away from the movable plate (5), and the liquid extraction port of the circulation pump extends into the circulation box (15). The liquid outlet of the circulation pump is connected to a cooling water pipe (16).

5. The engine piston processing equipment according to claim 4, characterized in that: The end of the cooling water pipe (16) away from the circulation tank (15) extends into the processing box (1), and the position of the outlet of the cooling water pipe (16) is adapted to match the drill bit (4) and the piston body (9). The bottom of the processing box (1) is provided with a manifold that is adapted to match the filter box (14).

6. The engine piston processing equipment according to claim 4, characterized in that: An electrical control box (17) is installed at the upper front end of the processing box (1). The electrical control box (17) is electrically connected to the electric telescopic rod one (7), the electric claw plate (8), the electric telescopic rod two (18), and the circulation pump.

Citation Information

Patent Citations

  • Engine piston mechanism machining equipment

    CN216502455U