Tool for removing burrs of through hole
Through the tool composed of connecting rod, lock head and wire rope, the rotating tool drives the wire rope to scrape the burrs at both ends of the through holes, solving the problems of complex processing and low efficiency in the prior art, and achieving efficient burr removal.
Patent Information
- Application Number
- CN202422018255.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-20
AI Technical Summary
When removing burrs at both ends of the through holes of mechanical parts, the prior art has problems such as complex processing procedures and low efficiency. In particular, the machine-added chamfers require adjustment of the orientation of the parts, and manual scraping efficiency is difficult to improve.
A tool including a connecting rod, a lock and a wire rope is designed. The rotating tool is connected through the connecting rod, and the burrs at both ends of the through holes are removed by using the scraping part of the lock and the rotation of the wire rope. The wire rope is bent and scraped under the action of centrifugal force to achieve efficient deburring without adjusting the position of the parts and tool.
It realizes efficient operation of simultaneously removing burrs at both ends of the through holes, simplifies the processing process and improves work efficiency.
Smart Images
Figure CN223235216U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical deburring tools, in particular to a tool for removing burrs from through holes. Background Art
[0002] There are usually burrs on the edges of both ends of the through holes machined on mechanical parts. Currently, the main methods for removing burrs are machine chamfering or manual scraping. Machining chamfering not only requires the movement of the tool or the part, but also requires the rotation of the part when chamfering both ends of the through hole, which greatly increases the complexity of the processing procedure and the part fixture. Although manual scraping is more flexible, it also requires deburring both ends of the through hole in turn, making it difficult to improve efficiency. Utility Model Content
[0003] In order to solve the deficiencies of the prior art, the utility model provides a tool for removing burrs from through holes, which has higher working efficiency and does not require adjustment of the positions of parts and tools.
[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:
[0005] A tool for removing burrs from through holes comprises a connecting rod, a locking head and a steel wire rope.
[0006] The rear end of the connecting rod is used to connect the rotating tool, and the front end thereof is a screw portion. The screw portion is coaxially provided with a lock hole, and the end of the screw portion is radially provided with a through groove connected to the lock hole.
[0007] The bottom of the lock head has a threaded hole connected to the screw part, and the lock head has a through hole coaxially arranged with the threaded hole. A scraping part with a strip structure is provided on the outer surface of the lock head, with its front end facing the top of the lock head and the rear end of the scraping part facing the bottom of the lock head. The distance between the front end of the scraping part and the axis of the lock head is smaller than the distance between the rear end of the scraping part and the axis of the lock head, and the distance between the front end of the scraping part and the axis of the lock head is smaller than the radius of the through hole to be processed.
[0008] The outer diameter of the steel wire rope is smaller than the inner diameter of the through hole to be processed. One end of the steel wire rope is successively passed through the through hole and the lock hole. When the threaded hole of the lock head is connected to the screw part, the inner wall of the lock hole presses the opposite sides of the end of the steel wire rope toward the middle, and the other end of the steel wire rope protrudes from the top of the lock head by a predetermined length, and the protruding length is greater than the depth of the through hole to be processed.
[0009] The beneficial effect of the utility model is that the edges of both ends of the through hole can be deburred at the same time without adjusting the positions of parts and tools, thus reducing intermediate processes and achieving higher work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.
[0011] Figure 1 A schematic diagram of the external structure of a preferred embodiment of the present application is shown.
[0012] Figure 2 A cross-sectional view of a preferred embodiment of the present application is shown.
[0013] Figure 3 An exploded view of a preferred embodiment of the present application is shown.
[0014] Figure 4 A structural schematic diagram of a lock is shown.
[0015] Markings in the figure: connecting rod-1, screw part-11, conical surface-111, locking hole-12, through groove-13, locking head-2, through hole-21, scraping part-22, wire rope-3, counterweight block-31. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.
[0017] like Figures 1 to 3 As shown, a tool for removing burrs from through holes includes: a connecting rod 1, a locking head 2 and a steel wire rope 3.
[0018] The rear end of the connecting rod 1 is used to connect the rotating tool, and the front end thereof is a screw portion 11 . The screw portion 11 is coaxially provided with a locking hole 12 . The end of the screw portion 11 is radially provided with a through groove 13 communicating with the locking hole 12 .
[0019] The bottom of the lock head 2 has a threaded hole connected to the screw part 11, and the lock head 2 has a through hole 21 coaxially arranged with the threaded hole. A scraping portion 22 with a strip structure is provided on the outer surface of the lock head 2, and its front end faces the top of the lock head 2, and the rear end of the scraping portion 22 faces the bottom of the lock head 2. The distance between the front end of the scraping portion 22 and the axis of the lock head 2 is smaller than the distance between the rear end of the scraping portion 22 and the axis of the lock head 2, and the distance between the front end of the scraping portion 22 and the axis of the lock head 2 is smaller than the radius of the through hole to be processed.
[0020] The outer diameter of the wire rope 3 is smaller than the inner diameter of the through hole to be processed. One end of the wire rope 3 is successively passed through the through hole 21 and the lock hole 12. When the threaded hole of the lock head 2 is connected to the screw part 11, the inner wall of the lock hole 12 presses the two opposite sides of the end of the wire rope 3 toward the middle. The specific principle is that when the threaded hole and the screw part 11 are tightened, the threaded hole will generate a component force toward the axial direction of the screw part 11. This component force will drive the physical parts on both sides of the through groove 13 to deform toward the middle, thereby shrinking the lock hole 12, and then using the inner wall of the lock hole 12 to press the outer wall of the wire rope 3. The other end of the wire rope 3 protrudes from the top of the lock head 2 by a predetermined length, and the protruding length is greater than the depth of the through hole to be processed.
[0021] When in use, the rear end of the connecting rod 1 is connected to the rotating tool, and the rotating tool can be used to drive the connecting rod 1 to rotate around the axis. The rotating tool includes a motor, an electric screwdriver, a manual electric drill, etc.; the end of the wire rope 3 protruding from the lock head 2 is passed through the through hole to be processed, and then the rotating tool is used to drive the connecting rod 1 to rotate rapidly. During the rotation, the scraping part 22 on the outside of the lock head 2 is used to scrape the burrs on the edge of one end of the through hole. During the rotation, the end of the wire rope 3 will be swung to the outside of the circumference under the action of centrifugal force, causing the wire rope 3 to begin to bend and deform from the edge of the other end of the through hole, so that the burrs on the edge of the other end of the through hole are scraped off by the bent part of the wire rope 3, so as to achieve the purpose of simultaneously removing the burrs on the edges of both ends of the through hole. This method does not require adjusting the position of parts or tools, and has higher deburring efficiency.
[0022] Preferably, the projection view of the locking hole 12 on the axis of the pre-welded rod 1 is circular or polygonal, and the polygon is preferably a quadrilateral or a hexagon.
[0023] Preferably, Figure 2 、 Figure 3 As shown, the outer wall of the end of the screw portion 11 has a conical surface 111, and the bottom of the threaded hole of the lock head 2 has an inner conical surface that cooperates with the conical surface 111. Through the cooperation between the inner conical surface and the conical surface 111, the effect of pressing the solid parts on both sides of the through-groove 13 toward the middle can be increased, thereby strengthening the clamping force on the wire rope 3.
[0024] Preferably, Figure 1 、 Figure 3 As shown, the steel wire rope 3 is a structure in which multiple strands of wire are wound, so that a concave-convex structure is formed on the circumference of the steel wire rope 3 by utilizing the multiple strands of wire. Thus, the concave-convex structure is utilized to improve the effect of scraping off burrs.
[0025] More preferably, Figures 1 to 3 As shown, a counterweight 31 is provided at one end of the wire rope 3 protruding from the lock head 2 to increase the inertia of the end of the wire rope 3, thereby increasing the pressure generated by the wire rope 3 on the edge of the through hole during rotation, thereby improving the effect of removing burrs.
[0026] As a further preferred structure, the counterweight block 31 is connected to the steel wire rope 3 as a whole by casting to ensure the connection strength, and when the steel wire rope 3 is formed by winding multiple strands of wire, this structural design can also prevent the wires from dispersing.
[0027] There are preferred ones, such as Figure 3 、 Figure 4 As shown, the scraping portion 22 is a convex strip structure protruding from the outer wall of the lock head 2. The lock head 2 can be a cylinder, a polygonal prism or a cone. It only needs to meet the following position requirements of the scraping portion 22, that is, the front end of the scraping portion 22 is facing the top of the lock head 2, the rear end of the scraping portion 22 is facing the bottom of the lock head 2, the distance between the front end of the scraping portion 22 and the axis of the lock head 2 is smaller than the distance between the rear end of the scraping portion 22 and the axis of the lock head 2, and the distance between the front end of the scraping portion 22 and the axis of the lock head 2 is smaller than the radius of the through hole to be processed.
[0028] Preferably, Figure 1 As shown, the top of the lock head 2 is a conical structure, and the scraping portion 22 is a strip groove structure opened on the outer surface of the conical structure. When in use, the side wall of the strip groove is used to scrape off burrs. The strip groove structure is arranged along the busbar of the conical structure and can also be inclined relative to the busbar.
[0029] Preferably, the rear end of the connecting rod 1 is a cylindrical rod or a polygonal rod.
[0030] The above description is only a preferred embodiment of the present invention and does not represent the only embodiment or limit the present invention. It should be understood by those skilled in the art that various changes or equivalent replacements made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.
Claims
1. A tool for removing burrs from through holes, characterized in that: include: A connecting rod (1), the rear end of which is used to connect to a rotating tool, the front end of which is a screw portion (11), the screw portion (11) is coaxially provided with a lock hole (12), and the end of the screw portion (11) is radially provided with a through groove (13) communicating with the lock hole (12); The lock head (2) has a threaded hole at the bottom thereof connected to the screw portion (11), the lock head (2) is provided with a through hole (21) coaxially arranged with the threaded hole, a scraping portion (22) with a strip structure is provided on the outer surface of the lock head (2), the front end of the scraping portion (22) faces the top of the lock head (2), and the rear end of the scraping portion (22) faces the bottom of the lock head (2), the distance between the front end of the scraping portion (22) and the axis of the lock head (2) is smaller than the distance between the rear end of the scraping portion (22) and the axis of the lock head (2), and the distance between the front end of the scraping portion (22) and the axis of the lock head (2) is smaller than the radius of the through hole to be processed; The outer diameter of the steel wire rope (3) is smaller than the inner diameter of the through hole to be processed. One end of the steel wire rope (3) is sequentially inserted into the through hole (21) and the lock hole (12). When the threaded hole of the lock head (2) is connected to the screw portion (11), the inner wall of the lock hole (12) presses the opposite sides of the end of the steel wire rope (3) toward the middle. The other end of the steel wire rope (3) protrudes from the top of the lock head (2) by a predetermined length, and the protruding length is greater than the depth of the through hole to be processed.
2. A tool for removing burrs from through holes according to claim 1, characterized in that: The projection view of the lock hole (12) on the axis of the pre-welded rod (1) is circular or polygonal.
3. A tool for removing burrs from through holes according to claim 1, characterized in that: The outer wall of the end of the screw portion (11) has a conical surface (111), and the bottom of the threaded hole of the lock head (2) has an inner conical surface that matches the conical surface (111).
4. A tool for removing burrs from through holes according to claim 1, characterized in that: The steel wire rope (3) is a structure in which multiple strands of wire are wound together.
5. A tool for removing burrs from through holes according to claim 1 or 4, characterized in that: One end of the steel wire rope (3) protruding from the lock head (2) is provided with a counterweight (31).
6. A tool for removing burrs from through holes according to claim 1, characterized in that: The scraping portion (22) is a convex strip structure protruding from the outer wall of the lock head (2), and the lock head (2) is a cylinder, a polygonal prism or a cone.
7. A tool for removing burrs from through holes according to claim 1, characterized in that: The top end of the lock head (2) is a conical structure, and the scraping portion (22) is a strip groove structure provided on the outer side of the conical structure.
8. A tool for removing burrs from through holes according to claim 1, characterized in that: The rear end of the connecting rod (1) is a cylindrical rod or a polygonal rod.