Honing tool and honing machine for discontinuous holes

Abstract

The utility model belongs to the technical field of honing, and particularly relates to a honing cutter and a honing machine for discontinuous holes. A honing cutter for intermittent holes comprises an upper supporting body, a cutter head body and a lower supporting body which are sequentially fixed together, the cutter head body comprises a plurality of supporting frames arranged in a radial mode, a cutter frame capable of adjusting the position or posture is arranged in the space between every two adjacent supporting frames, and honing cutters are fixed to the cutter frames. Compared with the prior art, the honing cutter has the advantages that the honing cutter is provided with the lower supporting body, after the first hole is machined, when the cutter head body needs to move downwards, one part of the lower supporting body penetrates into an unmachined hole all the time, the cutter head body is guided, and discontinuous holes can be machined as conveniently as continuous holes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to honing technical field, specifically relates to a kind of honing cutter for intermittent hole, honing machine. BACKGROUND

[0002] Honing is the main method in the manufacture industry hole finishing, and honing machine is also the commonly used equipment in modern machinery field, utilizes honing head to carry out finishing to workpiece surface.Under certain conditions, plane, cylindrical surface, spherical surface, tooth surface etc.can also be processed.But the equipment in current is seriously worn after high load operation, and worktable positioning is inaccurate, causing the problem of low machining accuracy in honing process.In order to solve the problems existing in prior art, people have carried out long-term exploration, and proposed various kinds of solutions.

[0003] Now there is vertical honing machine, such as Chinese patent document CN206123414U, CN118559597A.

[0004] Technical defects are: Figure 7 There are intermittent holes (intermittent holes are multiple discontinuous holes 91 with coincident axis) on existing workpiece 90, and the front end of existing honing cutter is tool bit, if this kind of honing cutter is used to process intermittent hole, tool bit needs to move downward after the first hole 91 is processed, at this time, tool bit has no radial direction support (constraint or become guide), and the axis of honing cutter can deviate, causing machining accuracy to decrease. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is: how to design a kind of honing cutter for intermittent hole, to facilitate processing intermittent hole.

[0006] The technical scheme of the utility model is specifically:

[0007] A kind of honing cutter for intermittent hole, including upper support body, tool bit body, lower support body fixed in sequence, tool bit body includes multiple radial support frames, the space between two adjacent support frames is provided with tool rest capable of adjusting position or attitude, and honing cutter is fixed on tool rest.

[0008] One of the support frames is provided with pneumatic measuring hole.

[0009] Pneumatic measuring hole is arranged at the middle position of the upper and lower directions of support frame.

[0010] A kind of honing machine, the lower end of its main shaft is fixed with the above-mentioned honing cutter for intermittent hole, and the gas path, in which pneumatic measuring hole is communicated with high-pressure gas source, includes gas guide mechanism, and high-pressure gas source is fixed on base.

[0011] A honing method characterized by using the honing machine, comprising the following steps:

[0012] S1, fixing the workpiece, aligning the honing tool with the intermittent hole, and moving the honing tool downward so that the lower support body reaches the target hole;

[0013] At the beginning, the target hole is the first hole above;

[0014] S2, continuously moving the honing tool downward, the tool head body reaches the target hole, and the lower support body reaches the adjacent hole below the target hole, unless the target hole is the last hole;

[0015] The adjacent hole is the first hole below the target hole;

[0016] S3, honing the target hole;

[0017] S4, after step S3, determining whether the processing precision of step S3 meets the standard by measuring the air volume of the hole by a pneumatic device, if "Y", entering step S5; if "N", entering step S3 for continuous processing;

[0018] S5, determining whether the processing is completed, if "Y", entering step S6; if "N", entering step S2;

[0019] S6, ending.

[0020] Compared with the prior art, the honing tool of the utility model has the technical effect that after the first hole is processed, the lower support body always penetrates into the unprocessed hole when the tool head body needs to move downward, guiding the tool head body, so that the intermittent hole is processed as easily as the continuous hole. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a front view schematic diagram of the honing machine of the utility model.

[0022] Figure 2 is a left view schematic diagram of the honing machine of the utility model.

[0023] Figure 3 is a top view schematic diagram of the honing machine of the utility model.

[0024] Figure 4 is a perspective schematic diagram of the honing machine of the utility model.

[0025] Figure 5 is an enlarged schematic diagram of the honing tool of the utility model.

[0026] Figure 6 is a schematic diagram of the honing tool of the utility model in use.

[0027] Figure 7 is a schematic diagram of the prior art. DETAILED DESCRIPTION

[0028] The utility model will be described in detail below in combination with the drawings and its specific implementation.

[0029] As Figures 1-4 A honing machine, comprising a base 1, the base 1 is provided with a workpiece translation mechanism 2, the translation mechanism 2 is used for moving the position of the workpiece, a Z-axis rail 3 is fixed on the base, the Z-axis rail 3 is provided with a spindle box 8 and can slide along it, the spindle box 8 is connected with a driving Z-axis motor for providing power, a rotating spindle is arranged on the spindle box 8, the rotating spindle is connected with a rotating motor 10, the rotating motor 10 is fixed on the spindle box 8, and the rotating motor 10 provides power for the rotation of the rotating spindle.

[0030] The rotating spindle is fixedly connected with a honing connecting rod 6, the lower end of the honing connecting rod 6 is fixed with a honing tool 5, the upper end of the honing connecting rod 6 is fixed with a tool expanding motor 9, the output shaft of the tool expanding motor 9 is connected with a tool holder (located on the honing tool 5 and used for mounting a honing tool / abrasive strip) through a connecting rod mechanism (located in the honing connecting rod 6), and the tool expanding motor 9 is used for adjusting the position of the honing tool / abrasive strip.

[0031] The part of the content can be referred to the patent document CN112428134B.

[0032] In order to facilitate control, the Z-axis motor, the rotating motor 10 and the tool expanding motor 9 are electrically connected with a controller 4.

[0033] In order to improve the overall appearance of the machine tool, a fence mechanism 11 is fixed on the upper part of the base 1.

[0034] As Figures 5-6 The honing tool 5 comprises an upper support body 51, a tool head body 52 and a lower support body 53 which are sequentially fixed together, the tool head body 52 comprises a plurality of support frames 55 arranged in a radial manner, the space between two adjacent support frames 55 is provided with a tool holder capable of adjusting the position or posture, and the honing tool (also referred to as an abrasive strip) is fixed on the tool holder.

[0035] In order to facilitate detection of machining precision, a pneumatic measuring hole 54 is arranged on one of the support frames 55, the pneumatic measuring hole 54 is connected with a high-pressure gas source 12 through a gas circuit, the gas circuit comprises a gas guide mechanism 7, and the high-pressure gas source 12 is fixed on the base 1.

[0036] The part of the content can be referred to the patent document CN118559597A.

[0037] In order to reduce the up-down movement, the pneumatic measuring hole 54 is arranged at the middle position of the up-down direction of the support frame 55.

[0038] As Figures 5-6 The working principle comprises the following steps:

[0039] S1, the workpiece 90 is fixed, the honing tool 5 is aligned with the intermittent hole, the honing tool 5 is moved downward, and the lower support body 53 reaches the target hole.

[0040] At the beginning, the target hole is the first hole 91 above.

[0041] S2, the honing tool 5 continues to move downward, the tool head body 52 reaches the target hole, and the lower support body 53 reaches the adjacent hole below the target hole, unless the target hole is the last hole.

[0042] The adjacent hole is the first hole below the target hole.

[0043] S3, the target hole is honed.

[0044] S4, after step S3, whether the machining precision of step S3 meets the standard is judged by the air flow of the pneumatic measuring hole 54, if "Y", step S5 is entered; if "N", step S3 is entered to continue machining.

[0045] The main purpose of this step is to detect precision: if the machining precision does not meet the standard, it means that the axis of the honing tool 5 may deviate seriously, because the two holes are discontinuous, when machining the next hole, the axis may remain unchanged to enter the next hole, causing the machining error of the next hole to be further enlarged. Therefore, one hole needs to be machined and one hole needs to be detected.

[0046] Similarly, this is also the reason why the pneumatic measuring hole 54 is arranged on the tool head body 52, the honing tool and the pneumatic measuring hole 54 are located at the same vertical position, and less up and down displacement of the honing tool 5 can realize detection.

[0047] S5, whether the machining is completed is judged, if "Y", step S6 is entered; if "N", step S2 is entered.

[0048] S6, end.

[0049] Other contents refer to the prior art.

[0050] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the present application, some changes and improvements can be made, which should be regarded as the protection range of the present application.

Claims

1. A honing tool for interrupted holes, characterized in that: The tool head body (52) comprises a plurality of radially arranged support frames (55), and a knife holder capable of adjusting position or posture is arranged between two adjacent support frames (55).

2. The honing tool for interrupted holes as set forth in claim 1, characterized in that: One of the support frames (55) is provided with a pneumatic measuring hole (54).

3. The honing tool for interrupted holes as set forth in claim 2, characterized in that: The pneumatic measuring hole (54) is arranged at a middle position in the up-down direction of the support frame (55).

4. A honing machine characterized by: The lower end of the main shaft is fixed with the interrupted hole honing tool as claimed in claim 1, a gas path, in which the pneumatic measuring hole (54) communicates with the high-pressure gas source (12), comprises a gas guide mechanism (7), and the high-pressure gas source (12) is fixed on the base (1).

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