Piston pin hole drilling tool

Abstract

The utility model discloses a tool for drilling a pin hole in a piston, which relates to the technical field of piston processing and comprises a vertical limiting mechanism, the upper part of the vertical limiting mechanism is fixedly connected with a horizontal limiting mechanism, and the vertical limiting mechanism comprises an operating platform and a vertical limiting frame. The bottom of the piston body is limited through the limiting base, the first air cylinder is extended to push the first fixing plate to move downwards, so that the vertical limiting frame is driven to move downwards, and the piston body is clamped and limited in the vertical direction through the vertical limiting frame and the limiting base; and then a second air cylinder is stretched to push a connecting plate, a second limiting rod and a second clamping plate to move, the piston body is clamped and fixed in the vertical direction through the second clamping plate and a first limiting plate, the piston body is fully limited in the vertical direction and the horizontal direction, and when drilling equipment is used for drilling one side of the piston body, the piston body is clamped and fixed in the horizontal direction; and the piston body is prevented from swinging.

Description

Technical Field

[0001] The utility model relates to the technical field of piston processing, in particular to a piston pin hole drilling tool. Background Art

[0002] The piston pin hole drilling tool is a tool or equipment used to drill holes on the piston. It usually consists of a fixture, a drill bit and a positioning device, which can ensure that the required pin holes are accurately drilled on the piston.

[0003] In the prior art, for example, Chinese patent CN219986834U discloses "a piston pin hole drilling tool", comprising: a base plate, a support plate, a positioning plate I, a positioning plate II, a positioning plate III, a pressure block, a hydraulic cylinder, a hydraulic cylinder mounting seat, a positioning screw, an adjusting screw, and a positioning block. The base plate is connected to the support plate and the positioning plate I, the positioning plate I is connected to the positioning plate II, the hydraulic cylinder mounting seat is connected to the base plate, the lower end of the hydraulic cylinder is connected to the hydraulic cylinder mounting seat, the left side of the hydraulic cylinder is connected to the pressure block, the positioning plate III is connected to the base plate, the positioning screws connect the positioning block and the base plate, and the adjusting screws are connected to the base plate.

[0004] However, in the prior art, the piston clamp only uses a horizontal clamping force to limit and fix it. When using a drilling device to drill a hole vertically downward from the top of the piston, the piston will swing vertically along the axis due to the power of the drill bit, causing the pin hole to be enlarged when the drill bit drills downward, resulting in a decrease in the processing accuracy of the pin hole. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the piston clamp existing in the prior art only uses the clamping force in the horizontal direction to limit and fix it, and when the drilling equipment is used to drill a hole vertically downward from the upper part of the piston, the piston will swing along the axis in the vertical direction due to the power of the drill bit, resulting in the pin hole being enlarged when the drill bit drills downward, resulting in a reduction in the processing accuracy of the pin hole, and a piston pin hole drilling tool is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a piston drilling and pin hole tooling, including a vertical limit mechanism, the upper part of the vertical limit mechanism is fixedly connected to a horizontal limit mechanism, the vertical limit mechanism includes an operating table and a vertical limit frame, the upper part of the operating table is fixedly connected to a fixing frame, the surface of the fixing frame is fixedly connected to a No. 1 cylinder, one end of the No. 1 cylinder is fixedly connected to a No. 1 fixing plate, the No. 1 fixing plate is fixedly connected to the side of the vertical limit frame, and the lower end of the vertical limit frame is clamped with a piston body;

[0007] The horizontal limiting mechanism includes a No. 2 fixing plate, which is fixedly connected to the surface of the operating table, and a No. 2 cylinder is fixedly connected to the side of the No. 2 fixing plate, one end of the No. 2 cylinder is fixedly connected to the connecting plate, a No. 2 limiting rod is fixedly connected to the side of the connecting plate, one end of the No. 2 limiting rod is fixedly connected to a No. 2 clamping plate, and the No. 2 clamping plate is clamped and fixed to the inside of the piston body.

[0008] Preferably, a limiting base is fixedly connected to the upper portion of the operating table, the limiting base is clamped with the lower portion of the piston body, and the vertical limiting frame is clamped with the upper portion of the piston body.

[0009] Preferably, a through hole is provided at the center position of the vertical limiting frame.

[0010] Preferably, a limit plate No. 1 is fixedly connected to the upper portion of the operating table, and the piston body is plugged into the limit plate No. 1.

[0011] Preferably, the surface of the No. 2 limiting rod is slidably connected to the No. 1 clamping plate, and the surface of the No. 2 limiting rod is provided with a limiting groove, the interior of the limiting groove is slidably connected to a limiting block, and the No. 1 clamping plate is fixedly connected to the limiting block.

[0012] Preferably, a No. 1 limit rod is fixedly connected to the side of the No. 1 clamping plate, the connecting plate is plugged into the No. 1 limit rod, a spring is provided on the surface of the No. 1 limit rod, one end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the No. 1 clamping plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the bottom of the piston body is limited by the limiting base, the No. 1 cylinder is extended to push the No. 1 fixing plate downward, thereby driving the vertical limiting frame to move downward, and the vertical direction of the piston body is clamped and limited by the vertical limiting frame and the limiting base, and then the No. 2 cylinder is extended to push the connecting plate, the No. 2 limiting rod and the No. 2 clamping plate to move, and the vertical direction of the piston body is clamped and fixed by the No. 2 clamping plate and the No. 1 limiting plate, and the vertical and horizontal directions of the piston body are fully limited, and when drilling a hole on one side of the piston body using a drilling device, the piston body is prevented from swinging.

[0015] 2. In the utility model, in the process that the No. 2 cylinder pushes the No. 2 clamping plate to clamp the piston body, when the connecting plate moves toward one side of the piston body, the No. 1 clamping plate is fitted with one end of the piston body, and when the connecting plate pushes the No. 2 limit rod to continue to move toward the inside of the piston body, the spring is deformed, and the reaction force of the spring pushes the No. 1 clamping plate to clamp the piston body, thereby improving the stability of the piston body limit. When the No. 1 clamping plate slides along the surface of the No. 2 limit rod, the limit block slides along the inside of the limit groove to limit the No. 1 clamping plate, thereby improving the stability of the No. 1 clamping plate when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of a piston pin hole drilling tooling is proposed for the utility model;

[0017] Figure 2 A schematic diagram of the top view of a piston pin hole drilling tooling is provided for the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the internal three-dimensional structure of a piston body in a piston pin hole drilling tool;

[0019] Figure 4 The utility model provides a three-dimensional structural schematic diagram of a limit groove in a piston pin hole tooling.

[0020] Legend: 1. Vertical limit mechanism; 11. Operating table; 12. Fixed frame; 13. Cylinder No. 1; 14. Fixed plate No. 1; 15. Vertical limit frame; 16. Through hole; 17. Limit base; 18. Limit plate No. 1; 2. Horizontal limit mechanism; 21. Fixed plate No. 2; 22. Cylinder No. 2; 23. Connecting plate; 24. Clamp No. 1; 25. Limit rod No. 1; 26. Spring; 27. Limit rod No. 2; 28. Clamp No. 2; 29. ​​Limit groove; 210. Limit block; 3. Piston body. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0023] like Figure 1-4As shown, the utility model provides a piston drilling and pin hole tooling, including a vertical limit mechanism 1, a horizontal limit mechanism 2 is fixedly connected to the upper part of the vertical limit mechanism 1, the vertical limit mechanism 1 includes an operating table 11 and a vertical limit frame 15, a fixed frame 12 is fixedly connected to the upper part of the operating table 11, a No. 1 cylinder 13 is fixedly connected to the surface of the fixed frame 12, a No. 1 cylinder 13 is fixedly connected to one end of the No. 1 cylinder 13, a No. 1 fixed plate 14 is fixedly connected to the side of the vertical limit frame 15, a piston body 3 is clamped at the lower end of the vertical limit frame 15, a limit base 17 is fixedly connected to the upper part of the operating table 11, the limit base 17 is clamped to the lower part of the piston body 3, the vertical limit frame 15 is clamped to the upper part of the piston body 3, a through hole 16 is arranged at the center of the vertical limit frame 15, a No. 1 limit plate 18 is fixedly connected to the upper part of the operating table 11, and the piston body 3 is plugged into the No. 1 limit plate 18.

[0024] The horizontal limiting mechanism 2 includes a No. 2 fixing plate 21, which is fixedly connected to the surface of the operating table 11, and a No. 2 cylinder 22 is fixedly connected to the side of the No. 2 fixing plate 21, one end of the No. 2 cylinder 22 is fixedly connected to the connecting plate 23, and a No. 2 limiting rod 27 is fixedly connected to the side of the connecting plate 23, and one end of the No. 2 limiting rod 27 is fixedly connected to the No. 2 clamping plate 28, and the No. 2 clamping plate 28 is clamped and fixed to the inside of the piston body 3.

[0025] The following is a detailed description of the specific settings and functions of this embodiment. One end of the piston body 3 is inserted downward from the top of the No. 1 limit plate 18, and the bottom of the piston body 3 is limited by the limit base 17. The No. 1 cylinder 13 is extended to push the No. 1 fixed plate 14 to move downward, thereby driving the vertical limit frame 15 to move downward, and the vertical direction of the piston body 3 is clamped and limited by the vertical limit frame 15 and the limit base 17. Then, the No. 2 cylinder 22 is extended to push the connecting plate 23, the No. 2 limit rod 27 and the No. 2 clamping plate 28 to move, and the vertical direction of the piston body 3 is clamped and fixed by the No. 2 clamping plate 28 and the No. 1 limit plate 18. By fully limiting the vertical and horizontal directions of the piston body 3, when using drilling equipment to drill a hole on one side of the piston body 3, the piston body 3 is prevented from swinging, which causes the dimensional accuracy of the pin hole to decrease. Embodiment 2

[0026] like Figure 2 , Figure 3 and Figure 4As shown, the surface of the No. 2 limit rod 27 is slidably connected to the No. 1 clamping plate 24, and the surface of the No. 2 limit rod 27 is provided with a limit groove 29, the inner part of the limit groove 29 is slidably connected to the limit block 210, the No. 1 clamping plate 24 is fixedly connected to the limit block 210, the side of the No. 1 clamping plate 24 is fixedly connected to the No. 1 limit rod 25, the connecting plate 23 is plugged into the No. 1 limit rod 25, and the surface of the No. 1 limit rod 25 is provided with a spring 26, one end of the spring 26 is fixedly connected to the connecting plate 23, and the other end of the spring 26 is fixedly connected to the No. 1 clamping plate 24.

[0027] The effect achieved by the entire embodiment is that, in the process of No. 2 cylinder 22 pushing No. 2 clamping plate 28 to clamp the piston body 3, when the connecting plate 23 moves toward one side of the piston body 3, the No. 1 clamping plate 24 is fitted with one end of the piston body 3, and when the connecting plate 23 pushes the No. 2 limiting rod 27 to continue to move toward the inside of the piston body 3, the spring 26 is deformed, and the reaction force of the spring 26 pushes the No. 1 clamping plate 24 to clamp the piston body 3, thereby improving the stability of the limiting of the piston body 3, and when the No. 1 clamping plate 24 slides along the surface of the No. 2 limiting rod 27, the limiting block 210 slides along the inside of the limiting groove 29 to limit the No. 1 clamping plate 24, thereby improving the stability of the No. 1 clamping plate 24 when moving.

[0028] The method of use and working principle of the device are as follows: insert one end of the piston body 3 downward from the top of the No. 1 limit plate 18, limit the bottom of the piston body 3 through the limit base 17, extend the No. 1 cylinder 13 to push the No. 1 fixed plate 14 to move downward, thereby driving the vertical limit frame 15 to move downward, and clamp and limit the vertical direction of the piston body 3 through the vertical limit frame 15 and the limit base 17, then extend the No. 2 cylinder 22 to push the connecting plate 23, the No. 2 limit rod 27 and the No. 2 clamping plate 28 to move, and clamp and fix the piston body 3 in the vertical direction through the No. 2 clamping plate 28 and the No. 1 limit plate 18;

[0029] When the No. 2 cylinder 22 pushes the No. 2 clamping plate 28 to clamp the piston body 3, when the connecting plate 23 moves toward the side of the piston body 3, the No. 1 clamping plate 24 is fitted with one end of the piston body 3. When the connecting plate 23 pushes the No. 2 limiting rod 27 to continue to move toward the inside of the piston body 3, the spring 26 is deformed, and the reaction force of the spring 26 pushes the No. 1 clamping plate 24 to clamp the piston body 3. When the No. 1 clamping plate 24 slides along the surface of the No. 2 limiting rod 27, the limiting block 210 slides along the inside of the limiting groove 29 to limit the No. 1 clamping plate 24.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A piston pin hole drilling tool, characterized in that: The invention comprises a vertical limiting mechanism (1), wherein the upper part of the vertical limiting mechanism (1) is fixedly connected to a horizontal limiting mechanism (2), wherein the vertical limiting mechanism (1) comprises an operating table (11) and a vertical limiting frame (15), wherein the upper part of the operating table (11) is fixedly connected to a fixing frame (12), a surface of the fixing frame (12) is fixedly connected to a first cylinder (13), one end of the first cylinder (13) is fixedly connected to a first fixing plate (14), the first fixing plate (14) is fixedly connected to a side surface of the vertical limiting frame (15), and a piston body (3) is clamped at the lower end of the vertical limiting frame (15); The horizontal limiting mechanism (2) comprises a No. 2 fixing plate (21), the No. 2 fixing plate (21) being fixedly connected to the surface of the operating table (11), and a No. 2 cylinder (22) being fixedly connected to the side of the No. 2 fixing plate (21), one end of the No. 2 cylinder (22) being fixedly connected to the connecting plate (23), a No. 2 limiting rod (27) being fixedly connected to the side of the connecting plate (23), one end of the No. 2 limiting rod (27) being fixedly connected to a No. 2 clamping plate (28), and the No. 2 clamping plate (28) being clamped and fixed to the inside of the piston body (3).

2. A piston pin hole drilling tool according to claim 1, characterized in that: The upper portion of the operating table (11) is fixedly connected to a limit base (17), the limit base (17) is clamped with the lower portion of the piston body (3), and the vertical limit frame (15) is clamped with the upper portion of the piston body (3).

3. The piston pin hole drilling tool according to claim 1, characterized in that: A through hole (16) is provided at the center of the vertical limiting frame (15).

4. A piston pin hole drilling tool according to claim 1, characterized in that: A first limit plate (18) is fixedly connected to the upper portion of the operating table (11), and the piston body (3) is plugged into the first limit plate (18).

5. The piston pin hole drilling tool according to claim 1, characterized in that: The surface of the second limiting rod (27) is slidably connected to the first clamping plate (24), and a limiting groove (29) is provided on the surface of the second limiting rod (27). The limiting groove (29) is internally slidably connected to a limiting block (210), and the first clamping plate (24) is fixedly connected to the limiting block (210).

6. A piston pin hole drilling tool according to claim 5, characterized in that: A No. 1 limit rod (25) is fixedly connected to the side of the No. 1 clamping plate (24), the connecting plate (23) is plugged into the No. 1 limit rod (25), a spring (26) is provided on the surface of the No. 1 limit rod (25), one end of the spring (26) is fixedly connected to the connecting plate (23), and the other end of the spring (26) is fixedly connected to the No. 1 clamping plate (24).

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