Tool for removing burrs of piston
By designing a tool set including plugs, sand blasting channels and sand blowing pipes, sand grinding technology is used to remove burrs in the inner hole of the piston, which solves the cracking problem caused by sharp corners or burrs in the inner wall of the piston when processing the air holes, and achieves efficient and simple burr removal effect.
Patent Information
- Application Number
- CN202421964775.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-14
AI Technical Summary
When the piston is processing air holes, sharp corners or burrs are prone to appear on the inner wall of the inner hole, which leads to cracks during heat treatment, and the problem of stress concentration and causing piston cracks during use is prone to occur. It is difficult for the prior art to remove these burrs efficiently.
A tool for removing piston burrs is designed, including a plug, a sandblasting channel and a sandblasting pipe. The plug is set in the central channel of the piston. The outlet of the sandblasting channel is connected to the inner hole to be polished, and the sandblasting pipe is connected to the inlet of the sandblasting channel. The sand particles enter the inner hole to be polished through the sandblasting pipe and the sandblasting channel, and the burrs in the inner hole of the piston are removed by grinding the sand particles.
The tooling can efficiently remove sharp corners and burrs in the piston pore, which is simple to operate and has higher efficiency than manual polishing. It can better remove burrs in the piston pore and avoid the problem of piston cracking.
Smart Images
Figure CN222945294U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of impactors, and more specifically, to a tool for removing burrs from a piston. Background Art
[0002] When the piston is processed with air holes, there are often sharp corners or burrs on the inner wall of the inner hole, which may cause cracking during heat treatment. In addition, stress concentration may occur during use, causing the piston to crack.
[0003] At present, workers often grind the air holes of pistons manually. However, since the air holes of pistons are long in length and small in diameter, they are difficult to process and grind.
[0004] Therefore, there is an urgent need for a tool for removing piston burrs, which can remove sharp corners and burrs in the piston air hole, is simple to operate, and is highly efficient. Utility Model Content
[0005] In order to solve the above technical problems, the present application provides a tool for removing piston burrs, which can remove sharp corners and burrs in the piston pores, is simple to operate and highly efficient.
[0006] The technical solutions provided by this application are as follows:
[0007] A tool for removing burrs from a piston, comprising:
[0008] A plug, the plug being sleeved in the central passage of the piston;
[0009] A sandblasting channel is provided in the plug, and an outlet of the sandblasting channel is connected to the inner hole to be polished;
[0010] A sand blasting pipe is connected to the inlet of the sand blasting channel, and one end of the sand blasting pipe away from the sand blasting channel is connected to a sand grain supply device.
[0011] Preferably, the plug comprises:
[0012] A blocking portion, the outer diameter of which is adapted to the inner diameter of the central channel;
[0013] A positioning portion is arranged at one end of the blocking portion, and an end surface of the positioning portion abuts against an end surface of the piston for positioning.
[0014] Preferably, it also includes:
[0015] A fixing sleeve sleeved on the outer side of the piston, wherein the bottom surface of the fixing sleeve abuts against the end surface of the positioning portion away from the blocking portion;
[0016] A clamping assembly is used to fix the fixing sleeve to the piston.
[0017] Preferably, the clamping assembly comprises a fastening screw, and the fastening screw passes through the fixing sleeve and abuts against the outer circumferential surface of the piston.
[0018] Preferably, at least two fastening screws are provided, and the fastening screws are arranged at intervals in the circumferential direction around the fixing sleeve.
[0019] Preferably, the first air hole to be polished extends obliquely from the first end of the piston toward the second end, the fixed sleeve is sleeved on the outside of the first end of the piston, the inlet of the sandblasting channel is arranged at the first end of the plug, and the fixed sleeve is provided with a matching channel for the sandblasting pipe to pass through.
[0020] Preferably, the second air hole to be polished is inclined from the second end of the piston toward the first end, the fixed sleeve is mounted on the outside of the first end of the piston, the inlet of the sandblasting channel is arranged at the second end of the plug, and the sandblasting tube passes through the second end of the central channel of the piston and is connected to the sandblasting channel.
[0021] Preferably, the sandblasting channel comprises:
[0022] A first channel provided on a side of the plug and used to communicate with the inner hole to be polished;
[0023] A second channel is disposed in the plug and communicated with the first channel, wherein the second channel is connected to a sand blasting pipe away from an inlet of the first channel.
[0024] The tooling for removing piston burrs provided by the utility model is provided with a plug, a sandblasting channel and a sandblasting tube, wherein the plug is set in the central channel of the piston, the outer side of the plug is used to block the two ends of the central channel, the sandblasting channel is arranged in the plug, the outlet of the sandblasting channel is connected to the inner hole to be polished, the sandblasting tube is connected to the inlet of the sandblasting channel, the end of the sandblasting tube away from the sandblasting channel is connected to a sand grain supply device, the sand grain supply device outputs sand grains through the sandblasting tube and the sandblasting channel into the inner hole to be polished, the inner hole to be polished is ground by the sand grains, and the burrs in the inner hole of the piston are removed. Compared with manual polishing, sand grain polishing is more efficient and can better remove the burrs in the inner hole of the piston. It can be seen that compared with the prior art, the tooling for removing piston burrs in the embodiment of the utility model can remove the sharp corners and burrs in the piston air hole, and is simple to operate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 A schematic diagram of the first structure of a tool for removing piston burrs provided in an embodiment of the utility model;
[0027] Figure 2 A second structural schematic diagram of a tool for removing piston burrs provided in an embodiment of the utility model.
[0028] Figure numerals: 1, plug; 2, piston; 4, sand blowing tube; 5, fixing sleeve; 6, fastening screw; 21, center channel; 22, first air hole to be polished; 23, second air hole to be polished; 31, first channel; 32, second channel. DETAILED DESCRIPTION
[0029] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0030] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0033] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0034] The embodiments of the present invention are written in a progressive manner.
[0035] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a tool for removing burrs from a piston, comprising: a plug 1, which is mounted in the central channel 21 of the piston 2; a sandblasting channel arranged in the plug 1, the outlet of the sandblasting channel is connected to the inner hole to be polished; a sandblasting tube 4 is connected to the inlet of the sandblasting channel, and the end of the sandblasting tube 4 away from the sandblasting channel is connected to a sand supply device.
[0036] At present, workers often grind the air holes of pistons manually. However, since the air holes of pistons are long in length and small in diameter, they are difficult to process and grind.
[0037] The tooling for removing piston burrs provided by the utility model is provided with a plug 1, a sandblasting channel and a sandblasting tube 4, wherein the plug 1 is set in the central channel 21 of the piston 2, the outer side of the plug 1 is used to block the two ends of the central channel 21, the sandblasting channel is arranged in the plug 1, the outlet of the sandblasting channel is connected to the inner hole to be polished, the sandblasting tube 4 is connected to the inlet of the sandblasting channel, the end of the sandblasting tube 4 away from the sandblasting channel is connected to a sand grain supply device, the sand grain supply device outputs sand grains through the sandblasting tube 4 and the sandblasting channel into the inner hole to be polished, the inner hole to be polished is ground by the sand grains, and the burrs in the inner hole of the piston 2 are removed. Compared with manual polishing, sand grain polishing is more efficient and can better remove the burrs in the inner hole of the piston 2. It can be seen that compared with the prior art, the tooling for removing piston burrs in the embodiment of the utility model can remove the sharp corners and burrs in the air hole of the piston 2, and is simple to operate and efficient.
[0038] In the above structure, as one of the ways, the plug 1 in the embodiment of the utility model includes a sealing part and a positioning part, wherein the outer diameter of the sealing part is adapted to the inner diameter of the central channel 21, the positioning part is arranged at one end of the sealing part, and the end face of the positioning part abuts against the end face of the piston 2 to position the plug 1.
[0039] In the above structure, as one of the implementation modes, the tooling for removing piston burrs in the embodiment of the utility model further includes a fixing sleeve 5 and a clamping assembly, wherein the fixing sleeve 5 is sleeved on the outside of the piston 2, one side of the fixing sleeve 5 abuts against the end face of the positioning part away from the blocking part, and the clamping assembly is used to fix the fixing sleeve 5 to the piston 2. One end of the positioning part contacts the end face of the piston 2, and one end of the positioning part away from the blocking part contacts the fixing sleeve 5, thereby fixing the blocking part in the piston 2. The clamping assembly is used to fix the fixing sleeve 5 to the piston 2 to prevent the plug 1 from falling off from the central channel 21 of the piston 2 under the scouring effect of sand particles.
[0040] In the above structure, as one specific implementation, the clamping assembly in the embodiment of the utility model includes a fastening screw 6, which passes through the fixing sleeve 5 and abuts against the outer circumferential surface of the piston 2, so that the fixing sleeve 5 and the piston 2 are fixed.
[0041] There may be one or at least two fastening screws 6, and when there are at least two fastening screws 6, the fastening screws 6 are arranged at intervals in the circumferential direction around the fixing sleeve 5. In this way, the fixing sleeve 5 and the piston 2 can be better fixed.
[0042] Furthermore, according to the needs of the piston 2 for gas distribution, at least two air holes to be polished in the embodiment of the utility model can be provided. For example, a specific piston 2 provided in the present application has two air holes to be polished, and the first air hole 22 to be polished extends from the first end of the piston 2 toward the second end, and the second air hole 23 to be polished extends from the second end of the piston 2 toward the first end.
[0043] The second end of the piston 2 is used to contact the end surface of the drill bit, and the first end of the piston 2 is used to contact the valve seat.
[0044] For the first air hole 22 to be polished and the second air hole 23 to be polished, the structures of the two plugs 1 used are different.
[0045] Specifically, please Figure 1As shown, for the first air hole 22 to be polished, the first air hole 22 to be polished extends from the first end of the piston 2 to the second end, the fixed sleeve 5 is sleeved on the outer side of the first end of the piston 2, the inlet of the sandblasting channel is arranged at the first end of the plug 1, and the fixed sleeve 5 is provided with a matching channel for the sandblasting pipe 4 to pass through. The sandblasting pipe 4 passes through the matching channel and is connected to the sandblasting channel. The sand grains output by the sand grain supply device enter the first air hole 22 to be polished from the sandblasting pipe 4, the matching channel and the sandblasting channel, and the inner wall of the first air hole 22 to be polished is polished.
[0046] Please Figure 2 As shown, for the second air hole 23 to be polished, the second air hole 23 to be polished extends obliquely from the second end of the piston 2 toward the first end, the fixing sleeve 5 is sleeved on the outside of the first end of the piston 2, the inlet of the sandblasting channel is arranged at the second end of the plug 1, and the sandblasting pipe 4 passes through the second end of the central channel 21 of the piston 2 and is connected to the sandblasting channel. The sand output by the sand supply device enters the second air hole 23 to be polished from the sandblasting pipe 4 and the sandblasting channel, and polishes the inner wall of the second air hole 23 to be polished.
[0047] In the above structure, as one of the implementation modes, the sandblasting channel in the embodiment of the utility model includes a first channel 31 and a second channel 32, wherein the first channel 31 is arranged on the side of the plug 1, and the first channel 31 is used to communicate with the inner hole to be polished, and the second channel 32 is arranged in the plug 1, and the second channel 32 is used to communicate with the first channel 31, and the second channel 32 is connected to the sand blasting pipe 4 away from the inlet of the first channel 31.
[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tool for removing piston burrs, characterized in that: include: A plug (1), wherein the plug (1) is sleeved in a central passage (21) of the piston (2); A sandblasting channel is provided in the plug (1), the outlet of the sandblasting channel being connected to the inner hole to be polished; A sand blasting pipe (4) connected to the inlet of the sand blasting channel, wherein one end of the sand blasting pipe (4) away from the sand blasting channel is connected to a sand supply device; The plug (1) comprises: a blocking portion, the outer diameter of which matches the inner diameter of the central channel (21); and a positioning portion provided at one end of the blocking portion, the end surface of which abuts against the end surface of the piston (2) for positioning.
2. The tool for removing piston burrs according to claim 1, characterized in that: Also includes: A fixing sleeve (5) sleeved on the outside of the piston (2), the bottom surface of the fixing sleeve (5) abutting against the end surface of the positioning portion away from the blocking portion; A clamping assembly for fixing the fixing sleeve (5) and the piston (2).
3. The tool for removing piston burrs according to claim 2, characterized in that: The clamping assembly comprises a fastening screw (6), wherein the fastening screw (6) passes through the fixing sleeve (5) and abuts against the outer circumferential surface of the piston (2).
4. The tool for removing piston burrs according to claim 3, characterized in that: At least two of the fastening screws (6) are provided, and the fastening screws (6) are arranged at intervals in the circumferential direction around the fixing sleeve (5).
5. The tool for removing piston burrs according to any one of claims 2 to 4, characterized in that: The first air hole (22) to be polished extends obliquely from the first end of the piston (2) toward the second end, the fixing sleeve (5) is sleeved on the outer side of the first end of the piston (2), the inlet of the sandblasting channel is arranged at the first end of the plug (1), and the fixing sleeve (5) is provided with a matching channel for the sandblasting pipe (4) to pass through.
6. The tool for removing piston burrs according to any one of claims 2 to 4, characterized in that: The second air hole (23) to be polished is arranged obliquely from the second end of the piston (2) toward the first end, the fixing sleeve (5) is sleeved on the outer side of the first end of the piston (2), the inlet of the sandblasting channel is arranged at the second end of the plug (1), and the second end of the sandblasting pipe (4) passes through the central channel of the piston (2) and is connected to the sandblasting channel.
7. The tool for removing piston burrs according to any one of claims 1 to 4, characterized in that: Sandblasting tunnel, including: A first channel (31) provided on a side of the plug (1) and used to communicate with the inner hole to be polished; A second channel (32) is disposed in the plug (1) and communicates with the first channel (31); the second channel (32) is connected to the sand blasting pipe (4) away from the inlet of the first channel (31).