Large-angle chuck device for tool sharpener

Abstract

The large-angle chuck device for the tool sharpener comprises a base main body, a rotating shaft and a tool bar seat, first through holes are formed in the front end and the rear end of the base main body, the rotating shaft is rotatably installed in the first through holes, the upper surface of the base main body is provided with a rotating shaft locking assembly used for fastening the rotating shaft, and the tool bar seat is arranged on the upper surface of the base main body. And the cutter bar seat is located at the rear end of the base body and fixedly connected with the rotating shaft, a positioning groove matched with a cutter bar is formed in the upper surface of the cutter bar seat, and a cutter bar pressing assembly used for pressing the cutter bar is installed on the upper surface of the cutter bar seat. By rotating the rotating shaft and adjusting the angle of the cutter bar seat, large-angle grinding of the cutter head is achieved, the structure is simple, operation is convenient, and the grinding precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a large-angle chuck device for a knife sharpener. Background Art

[0002] The existing technology uses a knife sharpener to grind the knife. When some special knives need to be ground at a large angle on the outside, the large angle grinding cannot be performed because it exceeds the design of the existing knife sharpener. In addition, if manual grinding is used, there will be large errors, affecting the use of the knife. Utility Model Content

[0003] According to the technical problem raised above, a large-angle chuck device for a knife sharpener is provided. The utility model provides a large-angle chuck device for a knife sharpener, which has a simple structure and can realize large-angle grinding with high precision.

[0004] The technical means adopted by the utility model are as follows:

[0005] A large-angle chuck device for a knife sharpener comprises: a base body, wherein the front and rear ends of the base body are provided with a first through hole, a rotating shaft is rotatably installed in the first through hole, the upper surface of the base body is provided with a rotating shaft locking assembly for tightening the rotating shaft, and a tool rod seat, which is located at the rear end of the base body, the tool rod seat is fixedly connected to the rotating shaft, the upper surface of the tool rod seat is provided with a positioning groove adapted to the tool rod, and the upper surface of the tool rod seat is provided with a tool rod clamping assembly for clamping the tool rod.

[0006] Further, the rotating shaft locking assembly includes a first locking handle, an upper locking sleeve and a lower locking sleeve, the first locking handle includes a first screw portion, a first positioning portion arranged at the upper end of the first screw and a first hand-held portion arranged on the first positioning portion, the diameter of the first positioning portion is larger than the diameter of the first screw portion,

[0007] A second through hole is provided on the upper surface of the base body, the second through hole is connected to the first through hole and is located on one side of the first through hole, the upper locking sleeve and the lower locking sleeve are correspondingly installed in the second through hole, and are respectively located on the upper and lower sides of the rotating shaft, the inner diameter of the upper locking sleeve is larger than the outer diameter of the first screw portion of the first locking handle, a threaded hole matched with the first screw portion of the first locking handle is provided in the lower locking sleeve, and the lower end of the screw portion of the first locking handle passes through the upper locking sleeve and is screwed into the threaded hole of the lower locking sleeve.

[0008] Furthermore, an end of the upper locking sleeve opposite to the lower locking sleeve is provided with an inclined locking surface in contact with the rotating shaft.

[0009] Furthermore, the tool rod clamping assembly includes a tool rod clamp and a second locking handle, the second locking handle includes a second screw portion, a second positioning portion arranged at the upper end of the second screw rod, and a second hand-holding portion arranged on the second positioning portion, the diameter of the second positioning portion is larger than the diameter of the second screw portion, the upper surface of the tool rod seat is provided with a threaded hole matched with the second screw portion of the second locking handle, the upper surface of the tool rod clamp is provided with a through hole matched with the second screw portion of the second locking handle, the lower end of the second screw portion of the second locking handle passes through the through hole on the tool rod clamp and is threadedly connected to the threaded hole on the tool rod seat.

[0010] Furthermore, an avoidance groove is provided on the lower surface of the knife bar clamp.

[0011] Furthermore, it also includes a ruler ring, both ends of the rotating shaft extend out of the through hole, the ruler ring is installed at the front end of the rotating shaft, the rear end of the rotating shaft is provided with a fixed seat, the rear end of the tool rod seat is provided with a connecting seat adapted to the fixed seat, and the connecting seat is fixed to the fixed seat by bolts.

[0012] Furthermore, there are angular scale lines on the outer diameter of the scale ring to indicate the rotation angle, and marking lines matching the scale lines of the scale ring are provided on the upper side surface of the front end of the base body. The scale ring is fixed to the rotating shaft by a fixing screw, and the threaded section of the fixing screw passes through the threaded hole on the inner wall of the scale ring and is pressed against the rotating shaft to complete the fixation.

[0013] Furthermore, it also includes a limit block plate, which is L-shaped and located at the rear end of the base body. The middle part of the horizontal section of the limit block plate is rotatably connected to the base body through a pin shaft. A limit groove is provided at one end of the horizontal section of the limit block plate away from the vertical section of the limit block plate, and the notch of the limit groove faces away from the tool rod clamping assembly. A limit rod is provided between the limit groove and the base body, and a positioning surface for positioning the tool rod is provided on the side of the vertical section close to the tool rod clamping assembly.

[0014] Furthermore, a clamping and positioning surface is provided on the right side of the base body for cooperating with a clamp of a knife sharpener.

[0015] The utility model has the following advantages:

[0016] The utility model provides a large-angle chuck device for a knife sharpener, comprising: a base body, a first through hole is provided at the front and rear ends of the base body, a rotating shaft is rotatably installed in the first through hole, a rotating shaft locking assembly for tightening the rotating shaft is provided on the upper surface of the base body, and a tool bar seat is located at the rear end of the base body, the tool bar seat is fixedly connected to the rotating shaft, a positioning groove adapted to the tool bar is provided on the upper surface of the tool bar seat, and a tool bar clamping assembly for clamping the tool bar is installed on the upper surface of the tool bar seat. By rotating the rotating shaft, the angle of the tool bar seat is adjusted, thereby realizing large-angle grinding of the tool head, and the structure is simple, the operation is convenient, and the grinding accuracy can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 It is an explosion diagram of an embodiment of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the base body of an embodiment of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the rotating shaft of an embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the tool bar seat of the embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the embodiment of the utility model when in use.

[0024] In the figure: 1-rotating shaft; 1.1-fixed seat; 2-scale ring; 3-base body; 3.1-first through hole; 3.2-second through hole; 3.3-pin hole; 3.4-clamping positioning surface; 4-tool bar seat; 4.1-positioning groove; 4.2-connecting seat; 5-tool bar; 6-tool bar clamp; 7-second locking handle; 7.1-second screw part; 7.2-second positioning part; 7.3-second hand-held part; 8-limit baffle; 9-first locking handle; 9.1-first screw part; 9.2-first positioning part; 9.3-first hand-held part; 10-upper locking sleeve; 11-lower locking sleeve; 12-pin shaft; 13-fixing screw; 14-bolt, 15-sharpening machine fixture; 16-grinding wheel; 17-limit rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1-6 As shown, a large-angle chuck device for a knife sharpener includes: a base body 3, a rotating shaft 1, and a tool bar seat 4. A clamping and positioning surface 3.4 is provided on the right side of the base body 3 for cooperating with the fixture of the knife sharpener. First through holes 3.1 are provided at the front and rear ends of the base body 3. The rotating shaft 1 is rotatably installed in the first through hole 3.1. A rotating shaft locking assembly for tightening the rotating shaft 1 is provided on the upper surface of the base body 3. The tool bar seat 4 is located at the rear end of the base body 3. The tool bar seat 4 is fixedly connected to the rotating shaft 1. A positioning groove 4.1 adapted to the tool bar 5 is provided on the upper surface of the tool bar seat 4. A tool bar pressing assembly for pressing the tool bar 5 is installed on the upper surface of the tool bar seat 4. When in use, the base body 3 is fixed by the fixture of the knife sharpener, the rotating shaft 1 is rotated, and the angle of the tool bar seat 4 is adjusted, so as to achieve large-angle grinding of the tool head. It has a simple structure, is easy to operate, and can improve grinding accuracy.

[0028] In this embodiment, the rotating shaft locking assembly includes a first locking handle 9, an upper locking sleeve 10 and a lower locking sleeve 11. The first locking handle 9 includes a first screw portion 9.1, a first positioning portion 9.2 arranged at the upper end of the first screw, and a first hand-held portion 9.3 arranged on the first positioning portion 9.2. The diameter of the first positioning portion 9.2 is greater than the diameter of the first screw portion 9.1. The upper surface of the base body 3 is provided with a second through hole 3.2, the second through hole 3.2 is connected to the first through hole 3.1, and is located on one side of the first through hole 3.1, that is, The second through opening is perpendicular to the first through hole 3.1 and partially crosses and overlaps. The upper locking sleeve 10 and the lower locking sleeve 11 are correspondingly installed in the second through hole 3.2 and are respectively located on the upper and lower sides of the rotating shaft 1. The inner diameter of the upper locking sleeve 10 is larger than the outer diameter of the first screw portion 9.1 of the first locking handle 9. A threaded hole matching the first screw portion 9.1 of the first locking handle 9 is provided in the lower locking sleeve 11. The lower end of the screw portion of the first locking handle 9 passes through the upper locking sleeve 10 and is screwed to the threaded hole of the lower locking sleeve 11.

[0029] Preferably, in order to improve the locking effect, the ends of the upper locking sleeve 10 and the lower locking sleeve 11 opposite to each other are both provided with an inclined locking surface in contact with the rotating shaft 1. When in use, the first screw portion 9.1 passes through the upper locking sleeve 10 and is screwed into the threaded hole of the lower locking sleeve 11, and the inclined locking surfaces of the two locking screw sleeves are in contact with the rotating shaft 1. By rotating the second hand-held portion 7.3, the two locking sleeves are pressed together to complete the locking and fixing. It has a simple structure, is easy to operate, and has a good locking effect.

[0030] The tool rod clamping assembly of the present embodiment includes a tool rod clamp 6 and a second locking handle 7. The second locking handle 7 includes a second screw portion 7.1, a second positioning portion 7.2 arranged at the upper end of the second screw and a second hand-holding portion 7.3 arranged on the second positioning portion 7.2. The diameter of the second positioning portion 7.2 is larger than the diameter of the second screw portion 7.1. A threaded hole matching the second screw portion 7.1 of the second locking handle 7 is provided on the upper surface of the tool rod seat 4. A through hole matching the second screw portion 7.1 of the second locking handle 7 is provided on the upper surface of the tool rod clamp 6. The lower end of the second screw portion 7.1 of the second locking handle 7 passes through the through hole on the tool rod clamp 6 and is screwed to the threaded hole on the tool rod seat 4.

[0031] Preferably, in order to improve the clamping effect, an avoidance groove is provided on the lower surface of the knife bar clamp 6 .

[0032] When in use, the knife bar 5 is placed in the positioning groove on the knife bar seat 4, the knife bar clamp 6 is pressed onto the knife bar seat 4 and the upper surface of the knife bar 5, and the second locking handle 7 is screwed to complete the fixation.

[0033] In order to facilitate the adjustment of the angle, the present embodiment further includes a scale ring 2, and the outer diameter of the scale ring 2 has angle scale lines for indicating the rotation angle. Both ends of the rotating shaft 1 extend out of the through holes, and the scale ring 2 is installed at the front end of the rotating shaft 1. Specifically, the scale ring 2 is fixed to the rotating shaft 1 by a fixing screw 13, and the threaded section of the fixing screw 13 passes through the threaded hole on the inner wall of the scale ring 2 and then presses against the rotating shaft 1 to complete the fixation. A marking line matching the scale line of the scale ring 2 is arranged on the upper side surface of the front end of the base body 3.

[0034] In this embodiment, a fixed seat 1.1 is provided at the rear end of the rotating shaft 1, and a connecting seat 4.2 adapted to the fixed seat 1.1 is provided at the rear end of the tool rod seat 4. The connecting seat 4.2 is fixed to the fixed seat 1.1 by three bolts 14. During installation, the threaded section of the bolt 14 passes through the through hole on the connecting seat 4.2 and is screwed into the threaded hole on the fixed seat 1.1.

[0035] In order to facilitate the positioning of the blade head of the tool bar 5, the present embodiment further includes a limit baffle 8, which is L-shaped and located at the rear end of the base body 3. The middle of the horizontal section of the limit baffle 8 is rotatably connected to the base body 3 through a pin shaft 12. A limit groove is provided at one end of the horizontal section of the limit baffle 8 away from the vertical section of the limit baffle 8, and the notch of the limit groove is away from the tool bar clamping assembly. A limit rod 17 is provided between the limit groove and the base body 3. A positioning surface for positioning the blade head of the tool bar 5 is provided on one side of the vertical section close to the tool bar 5 clamping assembly, and a pin hole 3.3 matching the pin shaft 12 and the limit rod 17 is correspondingly provided on the upper surface of the base body 3. A pin hole 3.3 matching the pin shaft 12 is provided in the middle of the horizontal section of the limit baffle 8.

[0036] When using, Figure 6 As shown, the entire device is installed into the knife sharpener, the knife sharpener fixture 15 clamps the clamping surface 3.4 of the base body 3, the tool rod 5 is installed into the positioning groove 4.1 on the tool rod seat 4, and the second locking handle 7 is locked to fix the tool rod 5. Observe the markings on the ruler ring 2 and the base body 3, rotate the tool rod seat 4 to a suitable angle, and lock the first locking handle 9 to complete the fixation. Move the limit stopper 8 to a vertical state. Then push the entire tool table toward the grinding wheel 16 so that the tip of the tool contacts the grinding wheel 16 to complete the grinding. It has a simple structure and is easy to operate. It can achieve large-angle grinding of the tool head with high grinding accuracy.

[0037] It should be noted that the parts not described in detail in the present invention are prior art.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "connect", "fix", "screw" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central 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 central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0043] In the description of the present utility model, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A large-angle chuck device for a knife sharpener, characterized in that: include: A base body, wherein the base body has first through holes at both ends thereof. A rotating shaft is rotatably mounted in the first through hole, The upper surface of the base body is provided with a rotating shaft locking assembly for tightening the rotating shaft, and The tool rod seat is located at the rear end of the base body, the tool rod seat is fixedly connected to the rotating shaft, a positioning groove adapted to the tool rod is opened on the upper surface of the tool rod seat, and a tool rod clamping assembly for clamping the tool rod is installed on the upper surface of the tool rod seat.

2. A large-angle chuck device for a knife sharpener according to claim 1, characterized in that: The rotating shaft locking assembly includes a first locking handle, an upper locking sleeve and a lower locking sleeve, the first locking handle includes a first screw portion, a first positioning portion arranged at the upper end of the first screw and a first hand-held portion arranged on the first positioning portion, the diameter of the first positioning portion is larger than the diameter of the first screw portion, A second through hole is provided on the upper surface of the base body, the second through hole is connected to the first through hole and is located on one side of the first through hole, the upper locking sleeve and the lower locking sleeve are correspondingly installed in the second through hole, and are respectively located on the upper and lower sides of the rotating shaft, the inner diameter of the upper locking sleeve is larger than the outer diameter of the first screw portion of the first locking handle, a threaded hole matched with the first screw portion of the first locking handle is provided in the lower locking sleeve, and the lower end of the screw portion of the first locking handle passes through the upper locking sleeve and is screwed into the threaded hole of the lower locking sleeve.

3. A large-angle chuck device for a knife sharpener according to claim 2, characterized in that: An end of the upper locking sleeve opposite to the lower locking sleeve is provided with an inclined locking surface in contact with the rotating shaft.

4. The large-angle chuck device for a knife sharpener according to claim 1, characterized in that: The tool rod clamping assembly includes a tool rod clamp and a second locking handle, the second locking handle includes a second screw portion, a second positioning portion arranged at the upper end of the second screw rod, and a second hand-held portion arranged on the second positioning portion, the diameter of the second positioning portion is larger than the diameter of the second screw portion, the upper surface of the tool rod seat is provided with a threaded hole matched with the second screw portion of the second locking handle, the upper surface of the tool rod clamp is provided with a through hole matched with the second screw portion of the second locking handle, the lower end of the second screw portion of the second locking handle passes through the through hole on the tool rod clamp and is threadedly connected to the threaded hole on the tool rod seat.

5. A large-angle chuck device for a knife sharpener according to claim 4, characterized in that: An avoidance groove is provided on the lower surface of the knife bar clamp.

6. The large-angle chuck device for a knife sharpener according to claim 1, characterized in that: It also includes a ruler ring, both ends of the rotating shaft extend out of the through hole, the ruler ring is installed at the front end of the rotating shaft, a fixed seat is provided at the rear end of the rotating shaft, and a connecting seat matched with the fixed seat is provided at the rear end of the tool rod seat, and the connecting seat is fixed to the fixed seat by bolts.

7. A large-angle chuck device for a knife sharpener according to claim 6, characterized in that: There are angular scale lines on the outer diameter of the scale ring to indicate the rotation angle. Marking lines matching the scale lines of the scale ring are arranged on the upper side surface of the front end of the base body. The scale ring is fixed to the rotating shaft by fixing screws. After the threaded section of the fixing screw passes through the threaded hole on the inner wall of the scale ring, it is pressed against the rotating shaft to complete the fixation.

8. The large-angle chuck device for a knife sharpener according to claim 1, characterized in that: It also includes a limit block piece, which is L-shaped and located at the rear end of the base body. The middle part of the horizontal section of the limit block piece is rotatably connected to the base body through a pin shaft. A limit groove is provided at one end of the horizontal section of the limit block piece away from the vertical section of the limit block piece, and the notch of the limit groove faces away from the tool rod clamping assembly. A limit rod is provided between the limit groove and the base body, and a positioning surface for positioning the tool rod is provided on the side of the vertical section close to the tool rod clamping assembly.

9. A large-angle chuck device for a knife sharpener according to any one of claims 1 to 8, characterized in that: A clamping and positioning surface is arranged on the right side of the base body for cooperating with the clamp of the knife sharpener.

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