Forward and reverse reaming cutter

Abstract

The utility model relates to a forward and reverse reaming cutter. The forward and reverse reaming cutter comprises a cutter holder, a cutter handle rotationally connected with the cutter holder, and a cutter head mounted on the cutter holder, a mounting hole and a mounting groove are formed in the tool apron, and the mounting hole is communicated with the mounting groove; one end of the cutter handle is rotationally arranged in the mounting hole; the tool bit is arranged in the mounting groove in a sliding manner; a gear is arranged at the end, close to the tool apron, of the tool handle, and a rack matched with the gear is arranged at the tail end of the tool bit. And when the cutter handle is rotated, the gear drives the cutter head to extend out of or retract into the mounting groove. According to the forward and reverse countersinking cutter, by using the forward and reverse countersinking cutter, the countersinking machining efficiency is effectively improved, and the problems that traditional reverse countersinking machining efficiency is low, and time and labor are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, and more specifically, to a new type of tool used for machining positive and negative countersinking in mechanical processing. Background Art

[0002] In the field of mechanical processing, countersinking tools are usually required to process hole features such as countersinks, counterbores, or top and bottom countersinks of inner holes in grooves. The countersinking tools currently used are mainly divided into two categories. One is the eccentric countersinking tool; during the use of the eccentric countersinking tool, there is no need to remove the blade, which saves a lot of time. However, due to the limitations of the via diameter and the eccentric distance, the eccentric countersinking tool has a thinner tool bar and poorer rigidity. The cutting parameters during the cutting process are low and the efficiency is not high. At the same time, when the aperture of the countersinking hole is much larger than the aperture of the via hole, the thinner tool bar cannot support the processing of such holes. The other type is a countersinking tool with a detachable blade. Although this type of tool has good rigidity, the blade needs to be removed once each time a single hole is processed. The operation is cumbersome, and frequent disassembly greatly reduces the processing efficiency of the product. Utility Model Content

[0003] Based on this, it is necessary to provide a new type of positive and negative countersinking tool to solve the problem of low processing efficiency of the countersinking tool in the prior art. By using the positive and negative countersinking tool, the countersinking processing efficiency is effectively improved, and the problems of low efficiency, time-consuming and labor-intensive traditional countersinking processing are solved.

[0004] A countersinking tool, comprising a tool seat, a tool handle rotatably connected to the tool seat, and a tool head mounted on the tool seat; the tool seat is provided with a mounting hole and a mounting slot, the mounting hole being connected to the mounting slot; one end of the tool handle is rotatably disposed in the mounting hole; the tool head is slidably disposed in the mounting slot; a gear is disposed at one end of the tool handle close to the tool seat, and a rack matching the gear is disposed at the rear end of the tool head; when the tool handle is rotated, the gear drives the tool head to extend out of or retract into the mounting slot.

[0005] Furthermore, a first bearing is provided at the end of the tool handle close to the tool seat, and an outer ring of the first bearing is fixed in the mounting hole.

[0006] Furthermore, the forward and reverse countersinking tool also includes a driving shaft, which is arranged at the end of the tool handle away from the tool seat, and the end of the driving shaft close to the tool handle is provided with an active bevel gear, and the tool handle is provided with a driven bevel gear that cooperates with the active bevel gear; the tool handle is driven to rotate by the driving shaft.

[0007] Furthermore, a first scale is provided at one end of the driving shaft away from the tool handle, and the protruding length of the tool head is adjusted by the first scale.

[0008] Furthermore, a second bearing is provided at the end of the tool handle close to the driven bevel gear.

[0009] Furthermore, a shell is sleeved on the outer side of the knife handle, and a reserved hole for the driving shaft to pass through is provided on the shell.

[0010] Furthermore, a second scale matching the first scale is provided on the outer periphery of the reserved hole.

[0011] Furthermore, the mounting groove is a dovetail groove, and a dovetail protrusion cooperating with the dovetail groove is provided on a side of the tail of the cutter head facing away from the rack.

[0012] Furthermore, a blade is detachably mounted on the head of the cutter head; the blade comprises a countersinking blade or a countersinking blade.

[0013] Furthermore, a cooling water hole is provided on the upper surface of the shell, and a coolant is injected into the cutter head through the cooling water hole.

[0014] The utility model provides a forward and reverse countersinking tool. When processing countersinking holes, the extension or retraction of the tool head is controlled by rotating the tool handle clockwise or counterclockwise. In addition, a driving shaft is provided for driving the tool handle to rotate. The driving shaft and the tool handle are matched by a bevel gear. The extension length of the tool can be adjusted by matching the driving shaft with the scale on the tool handle housing to facilitate the processing of countersinks of different sizes, and there is no need to frequently replace the tool according to the requirements of different hole sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An exploded view of a new type of positive and negative countersinking tool of the utility model;

[0016] Figure 2 for Figure 1 A magnified view of part I;

[0017] Figure 3 for Figure 1 Enlarged view of parts II and III.

[0018] Figure numerals: 1. tool holder, 2. tool handle, 3. tool head, 4. driving shaft, 11. mounting hole, 12. mounting groove, 21. gear, 22. first bearing, 23. driven bevel gear, 24. second bearing, 25. housing, 251. reserved hole, 252. second scale, 253. cooling water hole, 31. rack, 32. blade, 41. driving bevel gear, 42. first scale. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0020] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] The novel positive and negative countersinking tool is described below in conjunction with specific embodiments to further understand the utility model concept of the novel positive and negative countersinking tool.

[0023] like Figure 1 As shown, in one embodiment, a forward and reverse countersinking tool comprises a tool holder 1, a tool handle 2 rotatably connected to the tool holder 1, and a tool head 3 installed on the tool holder 1; a mounting hole 11 and a mounting slot 12 are provided on the tool holder 1, and the mounting hole 11 is connected to the mounting slot 12; one end of the tool handle 2 is rotatably disposed in the mounting hole 11; the tool head 3 is slidably disposed in the mounting slot 12; a gear 21 is provided at one end of the tool handle 2 close to the tool holder 1, and a rack 31 matching the gear 21 is provided at the rear end of the tool head 3; when the tool handle 2 is rotated clockwise, the gear 21 drives the rack 31 to extend out of the mounting slot 12, and when the tool handle 2 is rotated counterclockwise, the gear 21 drives the rack 31 to retract into the mounting slot 12.

[0024] The utility model provides a forward and reverse countersinking tool. When processing countersinking holes, the extension or retraction of the tool head is controlled by rotating the tool handle clockwise or counterclockwise. In addition, a driving shaft is provided for driving the tool handle to rotate. The driving shaft and the tool handle are matched by a bevel gear. The extension length of the tool can be adjusted by matching the driving shaft with the scale on the tool handle housing to facilitate the processing of countersinks of different sizes, and there is no need to frequently replace the tool according to the requirements of different hole sizes.

[0025] In one embodiment, if Figure 1 As shown, the positive and negative countersinking tool comprises a tool holder 1, a tool handle 2 rotatably connected to the tool holder 1, and a tool head 3 mounted on the tool holder 1. The tool holder 1 is provided with a mounting hole 11 and a mounting slot 12, the mounting hole 11 is communicated with the mounting slot 12, that is, a notch is reserved between the mounting slot 12 and the mounting hole 11; one end of the tool handle 2 is rotatably disposed in the mounting hole 11; the tool head 3 is slidably disposed in the mounting slot 12; a gear 21 is disposed at one end of the tool holder 2 close to the tool holder, and a rack 31 matching the gear 21 is disposed at the rear end of the tool head 3; when the tool holder 2 is rotated clockwise, the gear 21 drives the rack 31 to extend out of the mounting slot 12, and when the tool holder 2 is rotated counterclockwise, the gear drives the rack 31 to retract into the mounting slot 12.

[0026] In another embodiment, if Figure 1 and 3 As shown, the end of the tool handle 2 close to the tool seat 1 is provided with a first bearing 11, and the outer ring of the first bearing 22 is fixedly installed in the mounting hole 11. The novel forward and reverse countersinking tool also includes a drive shaft 4, which is provided at the end of the tool handle away from the tool seat 1, and the end of the drive shaft 4 close to the tool handle 2 is provided with an active bevel gear 41, and the tool handle 2 is provided with a driven bevel gear 23 that cooperates with the active bevel gear 41; the tool handle 2 is driven to rotate clockwise or counterclockwise by the drive shaft 4. The end of the tool handle 2 close to the driven bevel gear 41 is also provided with a second bearing 24, and the outer side of the tool handle is sleeved with a housing 25, and the housing 25 is provided with a reserved hole 251 for the drive shaft 4 to pass through, and the outer ring of the second bearing 24 is fixedly connected to the inner side of the upper end of the housing 25. The end of the drive shaft 4 away from the handle 2 is provided with a first scale 42, and the outer periphery of the reserved hole 241 is provided with a second scale 252 matched with the first scale 42, that is, when the drive shaft is rotated, the first scale 42 and the second scale 252 are equivalent to a screw micrometer, and the length of the tool head 3 extended can be adjusted by the number of turns of the drive shaft according to the radius of the processed hole. Therefore, the utility model adopts the principle of the screw micrometer to accurately control the length of the tool head 3 extended, thereby meeting the processing requirements of holes of different diameters, and has a wide range of applications.

[0027] In another embodiment, the mounting groove 12 is a dovetail groove, and a dovetail protrusion matching with the dovetail groove is provided on a side of the tail of the cutter head 3 facing away from the rack 31 .

[0028] In another embodiment, a blade 32 is detachably mounted on the head of the cutter head 3, and the blade 32 is not limited to a countersinking blade or a countersinking blade.

[0029] In another embodiment, a cooling water hole 253 is provided on the upper surface of the housing 25 , and a coolant is injected into the cutter head 3 through the cooling water hole 253 to cool the cutter head during the machining process.

[0030] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A positive and negative countersinking tool, characterized in that: The countersinking tool comprises a tool holder (1), a tool handle (2) rotatably connected to the tool holder (1), and a tool head (3) mounted on the tool holder (1); the tool holder (1) is provided with a mounting hole (11) and a mounting slot (12), and the mounting hole (11) is connected to the mounting slot (12); one end of the tool handle (2) is rotatably arranged in the mounting hole (11); the tool head (3) is slidably arranged in the mounting slot (12); a gear (21) is arranged at one end of the tool handle (2) close to the tool holder (1), and a rack (31) matching the gear (21) is arranged at the rear end of the tool head (3); when the tool handle (2) is rotated, the gear (21) drives the tool head (3) to extend or retract into the mounting slot (12).

2. A positive and negative countersinking tool according to claim 1, characterized in that: A first bearing (22) is provided at the end of the knife handle (2) close to the knife seat (1), and the outer ring of the first bearing (22) is fixed in the mounting hole (11).

3. A positive and negative countersinking tool according to claim 2, characterized in that: The forward and reverse countersinking tool further comprises a driving shaft (4), wherein the driving shaft (4) is arranged at an end of the tool handle (2) away from the tool seat (1), an active bevel gear (41) is arranged at an end of the driving shaft (4) close to the tool handle (2), and a driven bevel gear (23) cooperating with the active bevel gear (41) is arranged on the tool handle (2); the tool handle (2) is driven to rotate by the driving shaft (4).

4. A positive and negative countersinking tool according to claim 3, characterized in that: A first scale (42) is provided at one end of the drive shaft (4) away from the knife handle (2), and the protruding length of the knife head (3) is adjusted by the first scale (42).

5. A positive and negative countersinking tool according to claim 3, characterized in that: A second bearing (24) is provided at the end of the tool handle (2) close to the driven bevel gear (23).

6. A positive and negative countersinking tool according to claim 4, characterized in that: A shell (25) is sleeved on the outer side of the knife handle (2), and a reserved hole (251) for the driving shaft (4) to pass through is provided on the shell (25).

7. A positive and negative countersinking tool according to claim 6, characterized in that: The outer periphery of the reserved hole (251) is provided with a second scale (252) matching the first scale (42).

8. The positive and negative countersinking tool according to claim 1, characterized in that: The mounting groove (12) is a dovetail groove, and a dovetail protrusion matching the dovetail groove is provided on a side of the tail of the cutter head (3) facing away from the rack (31).

9. A positive and negative countersinking tool according to any one of claims 1 to 8, characterized in that: The head of the cutter head (3) is detachably mounted with a blade (32); the blade (32) comprises a countersinking blade or a countersinking blade.

10. The positive and negative countersinking tool according to claim 6, characterized in that: The upper surface of the housing (25) is provided with a cooling water hole (253), and cooling liquid is injected into the cutter head (3) through the cooling water hole (253).

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