Positioning machining jig for machine tool
By setting up a closed structure on the machine tool positioning machining fixture, the problem of debris splashing in CNC processing is solved, the inner wall of the tubular workpiece is protected, and the processing accuracy and rigidity are improved.
Patent Information
- Application Number
- CN202420647511.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During the CNC processing, the tubular workpiece cannot close the port due to the existing positioning fixture, causing debris to splash into the inside of the workpiece, causing damage to the inner wall and affecting the processing accuracy.
Design a positioning machining fixture for machine tools. By setting connections and covers at both ends of the fixed shaft, closing the opening of the workpiece, using locking nuts and clamping rings, ensuring that debris does not enter and providing support to prevent The open end is deformed.
Effectively prevent debris from entering the inside of the workpiece, protecting the inner wall, improving processing accuracy, and enhancing the rigidity of the workpiece ports to avoid deformation of the open ends.
Smart Images
Figure CN222243753U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning processing jig equipment, in particular to a positioning processing jig for machine tools. Background Art
[0002] During CNC machining, tubular workpieces need to be fixed with special positioning fixtures due to their special shapes. Existing positioning fixtures usually clamp the tube wall to support and position the tubular workpiece, but during machining, since the positioning fixture cannot close the port of the tubular workpiece, the debris generated during CNC milling splashes into the workpiece, and the sharp edges of the debris collide and scrape with the inside of the workpiece, causing damage to the inner wall of the workpiece, affecting the subsequent machining accuracy.
[0003] In view of this, we propose a positioning processing fixture for machine tools to solve the existing problems. Utility Model Content
[0004] The purpose of the utility model is to provide a positioning processing jig for machine tools to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning processing fixture for a machine tool, comprising: a workpiece to be processed, whose main body is tubular and has openings at both ends of the tube; a fixed shaft, which is installed on the central axis of the processed workpiece, and the two ends of the fixed shaft extend out of the two end openings of the processed workpiece, a first connecting piece is provided at the front end of the fixed shaft, and a front end cover that closes the front end opening of the workpiece is connected to the first connecting piece, the first connecting piece passes through the center of the front end cover and is connected to a locking nut, a second connecting piece is provided at the rear end of the fixed shaft, and a rear end cover that closes the rear end opening of the workpiece is connected to the second connecting piece; a spindle is provided at the end of the rear end cover away from the fixed shaft, and the spindle passes through the center of the rear end cover and is fixedly connected to the second connecting piece.
[0006] Preferably, a clamping ring matching the contour of the workpiece opening is provided on one side of the front end cover close to the workpiece opening end, and a rubber ring is provided in the clamping ring.
[0007] Preferably, the first connecting member is a long connecting rod extending at the front end of the fixed shaft, a spiral external thread is provided on the outer periphery of the long connecting rod, and the locking nut is meshed and connected with the first connecting member through its central threaded hole.
[0008] Preferably, the second connecting member is a connecting hole deepened along the shaft body toward the central axis of the fixed shaft, an internal thread is provided on the inner wall of the connecting hole, and a screw rod passes through the center of the rear end cover on one side of the front end of the main shaft and is threadedly connected to the connecting hole.
[0009] Preferably, a clamping ring matching with the rear end opening of the workpiece is provided on one end face of the rear end cover close to the fixed shaft, and the end face of the clamping ring protrudes from the end face of the rear end cover.
[0010] Preferably, a third connecting member is provided on one side of the rear end of the main shaft, and a mounting ring is provided at the end of the third connecting member. The mounting ring is fixedly connected to the main shaft by a bolt passing through the center thereof and fixedly connected to the third connecting member.
[0011] Preferably, the front end cover, the fixed shaft, the rear end cover and the main shaft are on the same axis.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model respectively arranges a first connecting member and a second connecting member at both ends of a fixed shaft, connected with a front end cover and a rear end cover, which are respectively used to close the openings at both ends of the workpiece, thereby preventing debris from entering the workpiece and scratching the inner wall during processing; at the same time, the front end cover and the rear end cover support the end wall of the tubular workpiece opening, thereby improving the rigidity of the tubular workpiece port and preventing the open end of the tubular workpiece from being deformed during processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model.
[0015] In the figure: 1, front end cover; 2, locking nut; 3, fixed shaft; 301, first connecting piece; 302, second connecting piece; 4, rear end cover; 401, clamping ring; 5, third connecting piece; 6, main shaft; 601, connecting hole; 602, screw; 7, workpiece. DETAILED DESCRIPTION
[0016] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0017] Embodiment 1
[0018] like Figure 1 and Figure 2As shown, the utility model proposes a positioning processing fixture for a machine tool, comprising: a workpiece 7 to be processed, whose main body shape is tubular, and openings are provided at both ends of the tube; a fixed shaft 3, which is installed on the central axis of the processed workpiece 7, and the two ends of the fixed shaft 3 extend out of the two end openings of the processed workpiece 7, a first connecting piece 301 is provided at the front end of the fixed shaft 3, and a front end cover 1 for closing the front end opening of the workpiece 7 is connected through the first connecting piece 301, the first connecting piece 301 passes through the center of the front end cover 1 and is connected with a locking nut 2, a second connecting piece 302 is provided at the rear end of the fixed shaft 3, and a rear end cover 4 for closing the rear end opening of the workpiece 7 is connected through the second connecting piece 302; a main shaft 6 is provided at the end of the rear end cover 4 away from the fixed shaft 3, and the main shaft 6 passes through the center of the rear end cover 4 and is fixedly connected to the second connecting piece 302.
[0019] In the embodiment, a groove matching the opening profile of the workpiece 7 is provided on one side of the front end cover 1 close to the opening end of the workpiece 7 , and a rubber ring is provided in the groove for sealing the front end opening of the workpiece 7 .
[0020] In the embodiment, the first connecting member 301 is a long connecting rod extending from the front end of the fixed shaft 3 , a spiral external thread is provided on the outer periphery of the long connecting rod, and the locking nut 2 is meshed and connected with the first connecting member 301 through its central threaded hole.
[0021] In the embodiment, the second connecting member 302 is a connecting hole 601 that is deepened along the shaft body toward the central axis direction of the fixed shaft 3, and an internal thread is provided on the inner wall of the connecting hole 601. The front end side of the main shaft 6 passes through the center of the rear end cover 4 through a screw 602 and is threadedly connected to the connecting hole 601.
[0022] In the embodiment, a clamping ring 401 matching with the rear end opening of the workpiece 7 is provided on one end face of the rear end cover 4 close to the fixed shaft 3 , and the end face of the clamping ring 401 protrudes from the end face of the rear end cover 4 to close the rear end opening of the workpiece 7 .
[0023] In the embodiment, a third connecting member 5 is provided on one side of the rear end of the main shaft 6, and a mounting ring is provided at the end of the third connecting member 5. The mounting ring is fixedly connected to the main shaft 6 by a bolt passing through the center thereof and fixedly connected to the third connecting member 5.
[0024] In the embodiment, the front end cover 1, the fixed shaft 3, the rear end cover 4, and the main shaft 6 are on the same axis, so as to ensure that the position of the workpiece 7 is not easily changed during the processing.
[0025] The working principle of a positioning processing fixture for machine tools based on Example 1 is: when in use, the workpiece 7 is placed between the front end cover 1 and the rear end cover 4, the fixed shaft 3 is inserted into the workpiece 7, one end of the fixed shaft 3 passes through the center of the front end cover 1 through the first connecting piece 301 and is connected to the locking nut 2, the other end of the fixed shaft 3 passes through the center of the rear end cover 4 through the main shaft 6 and is connected with the second connecting piece 302, the ports on both sides of the workpiece 7 are respectively clamped and fixed by the clamping groove set on the front end cover 1 and the clamping ring 401 set on the rear end cover 4, so as to realize the rapid positioning of the workpiece 7, and then the end of the main shaft 6 away from the fixed shaft 3 is connected with the mounting ring through the third connecting piece 5, and the fixed shaft 3 is fixed to the machine tool shaft through the mounting ring, so as to realize the rapid installation of the workpiece 7.
[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A positioning processing jig for a machine tool, characterized in that: include: The workpiece (7) to be processed is in the shape of a tube with openings at both ends of the tube; A fixed shaft (3) is mounted on the central axis of the workpiece (7), and the two ends of the fixed shaft (3) extend out of the two end openings of the workpiece (7); a first connecting piece (301) is provided at the front end of the fixed shaft (3), and a front end cover (1) for closing the front end opening of the workpiece (7) is connected via the first connecting piece (301); the first connecting piece (301) passes through the center of the front end cover (1) and is connected to a locking nut (2); a second connecting piece (302) is provided at the rear end of the fixed shaft (3), and a rear end cover (4) for closing the rear end opening of the workpiece (7) is connected via the second connecting piece (302); A main shaft (6) is provided at one end of the rear end cover (4) away from the fixed shaft (3), and the main shaft (6) passes through the center of the rear end cover (4) and is fixedly connected to the second connecting member (302).
2. A positioning tool for machine tools according to claim 1, characterized in that: A clamping ring (401) matching the opening profile of the workpiece (7) is provided on one side of the front end cover (1) close to the opening end of the workpiece (7), and a rubber ring is provided in the clamping ring (401).
3. The positioning tool for machine tools according to claim 1, characterized in that: The first connecting member (301) is a long connecting rod extending from the front end of the fixed shaft (3), and a spiral external thread is provided on the outer periphery of the long connecting rod. The locking nut (2) is meshedly connected to the first connecting member (301) through its central threaded hole.
4. The positioning tool for machine tools according to claim 1, characterized in that: The second connecting member (302) is a connecting hole (601) which is deepened along the shaft body in the direction of the central axis of the fixed shaft (3); an internal thread is provided on the inner wall of the connecting hole (601); a screw rod (602) passes through the center of the rear end cover (4) on one side of the front end of the main shaft (6) and is connected to the connecting hole (601) by means of a thread.
5. The positioning processing jig for machine tools according to claim 1, characterized in that: A clamping ring (401) that matches the rear end opening of the workpiece (7) is provided on one end face of the rear end cover (4) close to the fixed shaft (3), and the end face of the clamping ring (401) protrudes from the end face of the rear end cover (4).
6. The positioning processing jig for machine tools according to claim 1, characterized in that: A third connecting member (5) is provided on one side of the rear end of the main shaft (6), and a mounting ring is provided at the end of the third connecting member (5). The mounting ring is fixedly connected to the main shaft (6) by means of a bolt which passes through the center of the mounting ring and is fixedly connected to the third connecting member (5).
7. The positioning processing jig for machine tools according to claim 1, characterized in that: The front end cover (1), the fixed shaft (3), the rear end cover (4) and the main shaft (6) are located on the same axis.