Counter-pull limiting rose reamer
By designing the guide bushing and limit section on the reverse chamfer knife, the problem of low operating efficiency of the hole position in the intermediate position of the reverse chamfer knife in the prior art is solved, and the rapid entry and removal of the single-edge blade head is achieved. and precise control of chamfer depth.
Patent Information
- Application Number
- CN202421078650.3
- 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
The existing pull-back chamfering knives are inefficient when processing holes to be processed in the intermediate position and are difficult to quickly clamp and remove. Especially when the holes are far apart and the ribs are blocked, ordinary pull-back chamfering knives cannot be effectively placed and operated.
A reverse pull-out chamfer knife is designed, and a guide bushing is provided with a sliding sleeve on the tool rod, including a guide section and a limit section. The diameter of the guide section matches the hole to be processed, and the diameter of the limit section is larger than that of the guide section. The single-edged blade head is perpendicular to the tool rod, equipped with a limiting pin for easy access and removal of the hole, and the chamfer depth is controlled through a guide bushing and limiting section.
The single-edged cutting head is easily entered and removed from the holes to be processed, which improves processing efficiency and accurately controls the chamfer depth through the limit function.
Smart Images
Figure CN222242691U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cutting tools, and in particular relates to a reverse-pull limiting chamfering tool. Background Art
[0002] like Figure 1 , Figure 2 and Figure 3 As shown, there are multiple holes 2 to be processed on the workpiece 1, and each hole bottom surface must be chamfered. However, since the hole to be processed in the middle position is too far away and blocked by ribs, the ordinary split reverse chamfering tool 3 cannot be put in. In addition, when clamping the conventional reverse chamfering tool, the tool bar is first clamped into the pneumatic tool, and then the tool head is taken under the workpiece with one hand, and then the tool bar is placed in the workpiece hole. The tool bar is aligned with the inner hole of the tool head by manual feeling, and then the tool head is inserted into the tool bar, the tool bar is rotated, clamped, and then work is started. When taking it out, the tool bar must be twisted in the opposite direction with force, and then the tool bar and the tool head are taken out, which is very inefficient. 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 reverse pull limit chamfering cutter.
[0004] The technical solution adopted by the utility model is:
[0005] A reverse-pull limited chamfering tool comprises a tool rod, a sliding sleeve on the tool rod is provided with a guide bushing, the guide bushing comprises a guide section and a limit section, the guide section and the limit section are both cylinders, the diameter of the guide section matches the inner diameter of a hole to be processed, and the diameter of the limit section is larger than the diameter of the guide section; a single-edged cutter head is connected to one end of the tool rod, the single-edged cutter head is vertically arranged to the tool rod, and the cutting edge of the single-edged cutter head is arranged toward the guide section.
[0006] Preferably, the inner diameter of the guide bushing matches the diameter of the tool rod. A pin hole is formed through the tool rod, and a limit pin is installed in the pin hole. The length of the limit pin is greater than the outer diameter of the tool rod. The width of the single-edged tool head is smaller than the inner diameter of the hole to be processed.
[0007] The beneficial effects of the utility model are:
[0008] The utility model provides a reverse-pull limited chamfering tool, in which a single-edged tool head can easily enter a hole to be processed from above, which is convenient and quick, and the single-edged tool head can be easily taken out after processing; and the tool head can also be limited to control the chamfering depth. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic diagram of the workpiece.
[0010] Figure 2 yes Figure 1 Cross-sectional view of the workpiece.
[0011] Figure 3 It is a schematic diagram of the reverse chamfering tool.
[0012] Figure 4 It is a schematic diagram of the use state of the reverse pull limit chamfering cutter of the utility model.
[0013] Figure 5 It is a schematic diagram of another use state of the reverse pull limit chamfering cutter of the utility model.
[0014] Figure 6 It is a schematic diagram of another use state of the reverse pull limit chamfering cutter of the utility model.
[0015] Figure 7 It is a schematic diagram of another use state of the reverse pull limit chamfering cutter of the utility model.
[0016] In the figure: 1-workpiece; 2-hole to be processed; 3-reverse chamfering tool; 4-tool bar; 5-guide section; 6-limiting section; 7-single-edged tool head; 8-limiting pin. DETAILED DESCRIPTION
[0017] 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.
[0018] 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.
[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] like Figures 4 to 7As shown, a reverse pull limit chamfering tool of this embodiment includes a tool bar 4 which is cylindrical as a whole, a guide bushing is provided on the tool bar 4, and the guide bushing includes a guide section 5 and a limit section 6. The guide section 5 and the limit section 6 are both cylindrical, and the diameter of the guide section 5 matches the inner diameter of the hole 2 to be processed, that is, the diameter of the guide section 5 is the same as the inner diameter of the hole 2 to be processed; the diameter of the limit section 6 is larger than the diameter of the guide section 5. A single-edged cutter head 7 is connected to one end of the tool bar 4, and the single-edged cutter head 7 is arranged vertically to the tool bar 4, and the cutting edge direction of the single-edged cutter head 7 is arranged toward the guide section 5. The lower end surface of the guide section 5 is the limit surface. The single-edged cutter head 7 stops moving upward after contacting the lower end surface of the guide section 5, so that the chamfer size can be controlled. By controlling or changing the height of the guide section 5, the chamfer depth can also be controlled.
[0021] The inner diameter of the guide bushing matches the diameter of the tool bar 4, that is, the inner diameter of the guide bushing is the same as the outer diameter of the tool bar 4, and the tool bar 4 can guide the guide bushing. A pin hole is provided through the tool bar 4, and a limit pin 8 is installed in the pin hole. The length of the limit pin 8 is greater than the outer diameter of the tool bar 4. The installed limit pin 8 can prevent the guide bushing from falling out of the tool bar 4. The width of the single-edged cutter head 7 is smaller than the inner diameter of the hole to be processed, so that the single-edged cutter head 7 can be easily inserted into the hole to be processed.
[0022] The working process and principle of the reverse pull limit chamfering tool are as follows: Figure 4 As shown, the reverse pull limit chamfering cutter is clamped, the guide bushing slides upward, the single-edged cutter head 7 eccentrically enters the hole 2 to be processed, and completely passes through the hole 2 to be processed; Figure 5 As shown, the guide bushing slides down, and the guide section is guided into the hole to be processed. At this time, the single-edged cutter head is guided; Figure 6 As shown, the guide bushing is pressed to make the guide bushing always fit the workpiece surface, the driving tool is started, and the driving tool is used to drive the tool bar to rotate and lift up, the single-edged cutter head rotates and moves upward, and the single-edged cutter head starts to work and chamfer until the single-edged cutter head 7 contacts the lower end surface of the guide section 5 and stops; Figure 7 As shown, after the processing is completed, the guide bushing slides up and the single-edged cutter head is taken out.
[0023] 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 reverse pull limit chamfering tool, characterized in that: The invention comprises a tool rod (4), a sliding sleeve on the tool rod (4) is provided with a guide bushing, the guide bushing comprises a guide section (5) and a limit section (6), the guide section (5) and the limit section (6) are both cylindrical, the diameter of the guide section (5) matches the inner diameter of the hole to be processed, and the diameter of the limit section (6) is larger than the diameter of the guide section (5); one end of the tool rod (4) is connected with a single-edged cutter head (7), the single-edged cutter head (7) is arranged vertically to the tool rod (4), and the cutting edge of the single-edged cutter head (7) is arranged toward the guide section (5).
2. The reverse pull limit chamfering cutter according to claim 1, characterized in that: The inner diameter of the guide bushing matches the diameter of the cutter rod (4).
3. The reverse pull limit chamfering cutter according to claim 1 or 2, characterized in that: The knife rod (4) is provided with a pin hole, in which a limit pin (8) is installed, and the length of the limit pin (8) is greater than the outer diameter of the knife rod (4).
4. The reverse pull limit chamfering cutter according to claim 1, characterized in that: The width of the single-edged tool head (7) is smaller than the inner diameter of the hole to be processed.