Hand honing cutter handle supporting jig

Abstract

The utility model belongs to the technical field of honing cutters, and discloses a hand honing cutter handle supporting jig which comprises a V-shaped block and a bottom support, a lead screw is fixedly connected to the middle of the lower end of the V-shaped block, a through hole is formed in the middle of the bottom support, and the lower end of the lead screw is arranged on the inner side of the through hole in a penetrating mode. The outer side of the lead screw is sleeved with an adjusting block, and a threaded hole matched with the lead screw is formed in the middle of the adjusting block. The V-shaped block comprises a cuboid body, and a V-shaped groove is formed in the middle of the upper surface of the cuboid body. According to the hand honing tool, the potential safety hazard of scratching hands in operation can be eliminated, the hand honing precision of the tip cutting edge of the deep hole type drill bit is improved, and the increase of tool cost caused by falling of the tool is eliminated; the defect that the size of an existing datum plane of a hand honing jig cannot meet the requirement for hand honing operation of a long drill bit of a deep hole can be overcome, and a jig mechanism tends to be perfect.

Description

Technical Field

[0001] The utility model belongs to the technical field of tool honing, and in particular relates to a hand-honed tool handle support fixture. Background Art

[0002] At present, after the production enterprises grind the deep hole drill for processing the hollow hole of the camshaft of TNGA#1 and #2 lines, the camshaft is made of cast iron and the deep hole drill is made of superhard alloy. In order to avoid the drill bit from breaking and breaking during processing, the cutting edge of the deep hole drill needs to be hand-honed (passivated). However, since the length specification of this drill bit is more than 300mm, the working surface length of the special jig for hand honing is only 120mm. When using a special jig to hand-honing the cutting edge of this drill bit, the length of the jig cannot fully support the shank of this type of drill bit, which is not only very easy to scratch the operator's hand, but also cannot guarantee the honing accuracy, affecting the processing quality.

[0003] Through the above analysis, the problems and defects of the prior art are as follows:

[0004] 1. The length difference between the tool and the fixture is too large, resulting in the risk of scratching the operator's hands during hand honing;

[0005] 2. The length difference between the tool and the fixture is too large, resulting in the tool falling and breaking during the hand honing operation, and an abnormal increase in tool costs;

[0006] 3. The length difference between the tool and the fixture is too large, resulting in unstable hand honing accuracy and hidden dangers in processing quality. Utility Model Content

[0007] In order to overcome the problems existing in the related art, the utility model discloses an embodiment to provide a hand honing tool handle support fixture.

[0008] The technical solution of the utility model is as follows:

[0009] A hand-honed tool handle support jig is provided with a V-shaped block and a bottom support;

[0010] A lead screw is fixedly connected in the middle of the lower end of the V-shaped block, a through hole is opened in the middle of the base, and the lower end of the lead screw is passed through the inner side of the through hole;

[0011] An adjusting block is sleeved on the outer side of the lead screw, and a threaded hole matched with the lead screw is opened in the middle of the adjusting block.

[0012] In one embodiment, the V-shaped block includes a rectangular body, and a V-shaped groove is formed in the middle of the upper surface of the rectangular body.

[0013] In one embodiment, the V-block is made of nylon.

[0014] In one embodiment, the base includes upper and lower cylindrical structures, and the upper and lower cylindrical structures are integrally fixedly connected.

[0015] In one embodiment, the outer diameter of the lower cylindrical structure is greater than that of the upper cylindrical structure.

[0016] In one embodiment, the outer peripheral surface of the adjustment block is provided with anti-slip grooves.

[0017] Combining all the above technical solutions, the beneficial effects of the utility model are as follows: the utility model solves the defect that the hand honing jig cannot provide sufficient support for hand honing of deep hole drills (with longer lengths) due to the limitation of the size of the hand honing jig, and improves the integrity of the hand honing jig.

[0018] The utility model can eliminate the potential safety hazard of scratching hands when performing manual honing operations on deep hole (long length) drill bits, improve the accuracy of manual honing of the cutting edge at the tip of deep hole (long length) drill bits, and eliminate the increase in tool costs caused by tool falling due to the size limitation of the fixture (insufficient support).

[0019] The bottom bracket of the utility model can ensure the placement stability of the bottom bracket by adopting a two-stage cylindrical structure with different diameters; and can improve the friction coefficient of the surface of the adjusting block by providing anti-skid grooves on the outer side of the adjusting block, so as to facilitate the rotation adjustment of the adjusting block.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] Figure 1 It is a structural schematic diagram of a hand-honed tool handle support fixture provided by an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a V-shaped block provided in an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the base provided by an embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of an adjustment block provided in an embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the working principle of the hand honing tool handle support fixture provided by the embodiment of the utility model;

[0027] In the figure: 1. V-shaped block; 2. lead screw; 3. adjustment block; 4. base; 5. through hole; 6. threaded hole; 7. rectangular body; 8. V-shaped groove. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0029] like Figure 1 As shown, the hand honing tool handle support fixture provided by the embodiment of the utility model includes a V-shaped block 1, a lead screw 2, an adjustment block 3 and a base 4.

[0030] The lead screw 2 is fixedly connected to the middle of the lower end of the V-shaped block 1, a through hole 5 is opened in the middle of the base 4, and the lower end of the lead screw 2 is inserted into the inner side of the through hole 5; the adjustment block 3 is sleeved on the outside of the lead screw 2, and a threaded hole 6 cooperating with the lead screw 2 is opened in the middle of the adjustment block 3.

[0031] Preferably, the outer diameter of the lead screw 2 in the embodiment of the utility model is 7.8 mm, the thickness of the adjustment block 3 is 10 mm, the diameter is 27 mm, and the diameter of the through hole 5 is 8 mm.

[0032] like Figure 2 As shown, the V-shaped block in the embodiment of the utility model includes a rectangular body 7, and a V-shaped groove 8 is opened in the middle of the upper surface of the rectangular body 7.

[0033] As a preference, the V-block 1 in the embodiment of the utility model is made of nylon. The V-block 1 is a component that is in direct contact with the tool, and the tool is made of cemented carbide, which has high hardness, low toughness, and is afraid of bumps. The nylon material can protect the cemented carbide tool.

[0034] like Figure 3 As shown, the bottom bracket 4 in the embodiment of the utility model includes an upper and lower cylindrical structure, the upper and lower cylindrical structures are integrally fixedly connected, and the outer diameter of the lower cylindrical structure is larger than that of the upper cylindrical structure. By adopting such a two-stage cylindrical structure with different diameters, the placement stability of the bottom bracket 4 can be ensured.

[0035] like Figure 4 As shown, the outer peripheral surface of the adjustment block 3 in the embodiment of the utility model is provided with anti-skid patterns. The anti-skid patterns can increase the friction coefficient of the surface of the adjustment block 3, making it easier to adjust the rotation of the adjustment block 3.

[0036] like Figure 5 As shown, the working principle of the utility model is: when the utility model is used, the V-block 1, the lead screw 2, the adjustment block 3 and the base 4 are assembled in sequence, and the base 4 is placed at the oblique rear of the camera adjustment platform; the extension length of the lead screw 2 at the upper end of the base 4 is adjusted by rotating the adjustment block 3 to adjust the height of the V-block 1, and the height of the V-block 1 is adjusted to be consistent with the reference surface of the hand honing fixture; the hollow hole drill bit is placed on the shank position of the hand honing fixture and put into the nylon V-block 1; the supporting effect of the V-block 1 is fine-tuned according to actual conditions; and the hand honing operation of the tip of the hollow hole drill bit is performed.

[0037] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] The above description is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A hand honing tool handle support fixture, characterized in that: The hand-honed tool handle support fixture is provided with: a V-shaped block (1) and a base (4); A lead screw (2) is fixedly connected to the middle of the lower end of the V-shaped block (1), a through hole (5) is opened in the middle of the base (4), and the lower end of the lead screw (2) is inserted into the inner side of the through hole (5); An adjustment block (3) is sleeved on the outer side of the lead screw (2), and a threaded hole (6) matching with the lead screw (2) is provided in the middle of the adjustment block (3).

2. The hand-honed tool handle support fixture according to claim 1, characterized in that: The V-shaped block (1) comprises a rectangular body (7), and a V-shaped groove (8) is provided in the middle of the upper surface of the rectangular body (7).

3. The hand-honed tool handle support fixture according to claim 1, characterized in that: The V-shaped block (1) is made of nylon.

4. The hand-honed tool handle support fixture according to claim 1, characterized in that: The base (4) comprises an upper and lower cylindrical structure, and the upper and lower cylindrical structures are integrally fixedly connected.

5. The hand-honed tool handle support fixture according to claim 4, characterized in that: The outer diameter of the lower cylindrical structure is greater than that of the upper cylindrical structure.

6. The hand-honed tool handle support fixture according to claim 1, characterized in that: The outer peripheral surface of the adjustment block (3) is provided with anti-slip grooves.

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