Cutter capable of chamfering and dimpling positively and negatively
By designing tools that can chamfer the counters in the back and forth, and using automatic clamping slots to achieve single-use clamping, the problem of low machining efficiency of binaural workpieces is solved, improving processing efficiency and reducing costs.
Patent Information
- Application Number
- CN202421079982.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the prior art, when processing binaural workpieces, two sets of tools are required, resulting in at least three clamping and tool change, which is inefficient.
Design a tool that can chamfer the countersletter, including a knife rod and a knife head. The blade and the installation hole are provided at both ends of the knife head. The knife rod has a guide part and a clamping part, and the disposable installation is achieved through automatic clamping grooves. Clips can complete the chamfers of the 4 orifices on the binaural workpiece.
It realizes one-time clamping, saving clamping time, improving processing efficiency, and reducing point tool costs and management costs.
Smart Images
Figure CN222242782U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cutting tools, and in particular relates to a cutting tool capable of performing positive and negative chamfering and countersinking. Background Art
[0002] A common binaural artifact1 such as Figure 1 As shown, it has a left ear and a right ear arranged in parallel, wherein the left ear is provided with a first ear hole 11, and the right ear is provided with a second ear hole 12, the first ear hole 11 and the second ear hole 12 are coaxially arranged, in order to chamfer the inside and outside of the first ear hole and the second ear hole, two sets of tools are generally used, namely Figure 2 The reverse chamfer drill 21 and Figure 3 The positive chamfer drill 22 shown in the figure needs to be clamped and the tool changed at least three times to complete the chamfering of four holes on the workpiece, thereby reducing the processing efficiency. Utility Model Content
[0003] The utility model aims to solve the above technical problems at least to a certain extent. To this end, the utility model aims to provide a tool capable of countersinking and chamfering.
[0004] The technical solution adopted by the utility model is:
[0005] A tool capable of countersinking and chamfering, comprising a tool bar and a tool head, both ends of the tool head are provided with cutting edges, a through mounting hole is opened on the tool head, a side hole for mounting a fixing pin is provided on the tool head, and the side hole is perpendicular to the mounting hole; the tool bar comprises a guide portion, the guide portion comprises a front mounting section and a rear guide section, the diameter of the rear guide section matches the inner diameter of the mounting hole, and the front mounting section is provided with a clamping groove perpendicular to its axial direction.
[0006] Preferably, the cross section of the front mounting section is semicircular or three-quarter circular. The knife bar further includes a clamping portion.
[0007] The beneficial effects of the utility model are:
[0008] The utility model provides a tool capable of chamfering and countersinking both ways. The tool bar can be clamped at one time, and one tool can complete the chamfering of four holes on a double-ear workpiece, which not only saves clamping time and processing time, improves processing efficiency, is quick and convenient, but also reduces tool cost and management cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of a double-ear workpiece of the utility model.
[0010] Figure 2 It is a schematic diagram of a reverse chamfer drill.
[0011] Figure 3 This is a schematic diagram of a positive chamfer drill.
[0012] Figure 4 This is a schematic diagram of a tool that can perform both positive and negative chamfering and countersinking.
[0013] Figure 5 It is a schematic diagram of the knife bar of the utility model.
[0014] Figure 6 It is a sectional view of the tool bar of the utility model.
[0015] Figure 7 The utility model is a schematic diagram of the processing state of the tool capable of positive and negative chamfering and countersinking.
[0016] Figure 8 It is another schematic diagram of the processing state of the tool capable of positive and negative chamfering and countersinking of the utility model.
[0017] In the figure: 1-double-ear workpiece; 11-first ear hole; 12-second ear hole; 21-reverse chamfering drill; 22-positive chamfering drill; 3-tool bar; 31-front mounting section; 32-rear guide section; 33-clamping part; 34-clamping groove; 4-tool head; 41-positive chamfering edge; 42-reverse chamfering edge; 5-fixing pin. DETAILED DESCRIPTION
[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the accompanying drawings herein can be arranged and designed in a variety of different configurations.
[0019] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.
[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] like Figures 4 to 8As shown, a tool capable of positive and negative chamfering and countersinking in this embodiment comprises a tool bar 3 and a tool head 4. Both ends of the tool head 4 are provided with cutting edges, one end of which is a positive chamfering cutting edge 41, and the other end is a reverse chamfering cutting edge 42. A through mounting hole is provided on the tool head 4 along its axial direction, and the mounting hole is used for the tool bar 3 to pass through when installing. A side hole for installing a fixing pin 5 is provided on the tool head 4, and the side hole is perpendicular to the mounting hole. After passing through the side hole, the fixing pin 5 can protrude from the inner wall of the mounting hole.
[0022] The tool rod 3 includes a guide portion, which includes a front mounting section 31 and a rear guide section 32. The diameter of the rear guide section 32 matches the inner diameter of the mounting hole, that is, the diameter of the rear guide section 32 is the same as the inner diameter of the mounting hole. The cross-section of the front mounting section 31 is three-quarter circular, that is, the front mounting section is a partially flattened cylinder. The flattened portion is to allow the fixing pin on the cutter head to be opened so that the tool rod can pass through the cutter head smoothly.
[0023] The front mounting section 31 is provided with a clamping groove 34 perpendicular to its axial direction. The fixing pin 5 is used to clamp the tool rod and transmit torque. The fixing pin and the tool head are in an interference fit relationship. The clamping groove 34 is matched with the fixing pin on the tool head to ensure that it will not loosen after rotation and clamping, and plays a role in limiting and transmitting torque.
[0024] The shank 3 further includes a clamping portion 33, and the clamping portion 33 is used to be connected to a hand-held air drill.
[0025] like Figure 7 As shown in the figure, the tool bar is installed in the tool head and rotated 60° clockwise. The tool bar is automatically clamped, and the tool moves back and forth, one positive countersink and one reverse countersink, which can complete the chamfering of the two inner hole openings; Figure 8 As shown, the tool bar is installed into the tool head and rotated 60° clockwise. The tool bar is automatically clamped and the chamfering of the two outer holes can be completed directly using the positive chamfering edge.
[0026] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.
Claims
1. A tool capable of countersinking and chamfering, characterized in that: The invention comprises a knife bar (3) and a knife head (4), wherein both ends of the knife head (4) are provided with cutting edges, a through mounting hole is opened on the knife head (4), and a side hole for mounting a fixing pin (5) is provided on the knife head (4), and the side hole is perpendicular to the mounting hole; the knife bar (3) comprises a guide part, and the guide part comprises a front mounting section (31) and a rear guiding section (32), and the diameter of the rear guiding section (32) matches the inner diameter of the mounting hole, and the front mounting section (31) is provided with a clamping groove (34) perpendicular to its axial direction.
2. The tool according to claim 1, characterized in that: The cross section of the front mounting section (31) is semicircular or three-quarter circular.
3. The tool according to claim 1 or 2, characterized in that: The knife rod (3) also includes a clamping portion (33).