Deep hole forming reamer with detachable extension bar

Abstract

The utility model belongs to the technical field of reamers, particularly relates to a deep hole forming reamer with a detachable extension bar, and aims to solve the problems that the length of the existing reamer cannot be adjusted, a deeper hole cannot be processed and the practicability is poor when the existing reamer is used, the following scheme is provided: the deep hole forming reamer comprises a reamer body, a chip groove is formed in the outer surface of the reamer body, and an adjusting mechanism used for adjusting the length of the reamer is arranged at one end of the reamer body. The adjusting mechanism comprises a first connecting piece, the first connecting piece is arranged at one end of the reamer body, the tail end of the first connecting piece is connected with a lengthened rod body, and a first connecting hole connected with the first connecting piece in an inserted mode is formed in the lengthened rod body. According to the reamer, the limiting bolt on the mounting pipe is unscrewed, then fixation of the lengthened rod body is relieved, under the cooperation of the adjusting groove, the lengthened rod body can be pulled to move, and then the length of the reamer body is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a deep hole forming reamer, concretely to a deep hole forming reamer with detachable lengthening rod belongs to reamer technical field. BACKGROUND

[0002] The deep hole forming reamer is a kind of tool specially used for processing the inner surface of deep hole, it can carry out accurate forming processing in hole to meet the specific shape and size requirement, deep hole forming reamer is mainly used to finish machining to the deep hole drilled to reach the required shape, size and surface roughness, it is suitable for the processing of various metal materials, such as steel, cast iron, copper, aluminum etc., and is widely used in the fields of automobile, aerospace, machinery manufacturing, die manufacturing etc.

[0003] In prior art, such as the forming reamer disclosed in the announcement No.CN208728818U, it includes the handle clamped on the processing equipment to drive the reamer rotation and the cutter head formed on one end of the handle and coaxially rotated with the handle, the cutter head includes four blade petals, the four blade petals are respectively helically extended to the center of the cutter head end along the axial direction of the handle and meet to form an end face cutter, each blade petal is respectively provided with a blade petal chip removal groove, the blade petal chip removal groove is helically extended to the front part of the handle from the end of the cutter head and stops, and the axial stop position of each blade petal chip removal groove helically extended to the front part of the handle is different. It avoids the problem of chip removal obstruction caused by the collision of chip removal grooves of different blade petals, and takes away most of the cutting heat, so that the cutting is stable, and the tool aging speed is reduced.

[0004] Although the above technical scheme can avoid the problem of chip removal obstruction caused by the collision of chip removal grooves of different blade petals, and take away most of the cutting heat, but it cannot adjust the length of the reamer when in use, cannot process deeper holes, and the practicability is poor, therefore, the deep hole forming reamer with detachable lengthening rod is provided to overcome the above defects. UTILITY MODEL CONTENTS

[0005] The utility model provides a deep hole forming reamer with detachable lengthening rod to solve the problem that the length of the reamer cannot be adjusted when in use, the deeper hole cannot be processed and the practicability is poor.

[0006] The utility model realizes the above-mentioned purpose by the following technical scheme: a deep hole forming reamer with detachable lengthening rod, including reamer body, the outer surface of reamer body is equipped with the chip removal groove, and the one end of reamer body is equipped with the adjusting mechanism for adjusting the length of reamer;

[0007] The adjusting mechanism comprises a first connecting piece arranged at one end of the reamer body, a lengthened rod body connected at the tail end of the first connecting piece, a first connecting hole arranged in the lengthened rod body and connected with the first connecting piece in plug-in connection, and a fixing screw mounted on the outer surface of the lengthened rod body and abuttingly connected with the first connecting piece.

[0008] As a further scheme of the present application, a mounting pipe is telescopically connected to the lower end of the lengthened rod body, and a limiting bolt is mounted on the outer surface of the mounting pipe and abuttingly connected with the lengthened rod body.

[0009] As a further scheme of the present application, a positioning head is fixed to the other end of the reamer body, and an adjusting groove is arranged in the mounting pipe.

[0010] As a further scheme of the present application, a guide groove is arranged on the outer surface of the lengthened rod body, and a limiting strip fixedly connected with the mounting pipe is slidably connected in the guide groove.

[0011] As a further scheme of the present application, a second connecting piece is fixed to the lower surface of the mounting pipe.

[0012] As a further scheme of the present application, a fixing block is connected to the lower end of the second connecting piece.

[0013] As a further scheme of the present application, a second connecting hole is arranged in the fixing block and connected with the second connecting piece in plug-in connection, and a fixing screw is mounted on the outer surface of the fixing block and abuttingly connected with the second connecting piece.

[0014] The present application has the advantages that: by loosening the limiting bolt on the mounting pipe, the lengthened rod body is released from the fixing, and under the cooperation of the adjusting groove, the lengthened rod body can be pulled to move, so that the length of the reamer body is adjusted; by loosening the fixing screw on the fixing block, the second connecting piece on the mounting pipe is separated from the second connecting hole, and then the first connecting piece on the reamer body is connected and fixed with the second connecting hole, so that the lengthened assembly is disassembled, and the use in different environments is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the present application;

[0016] Figure 2 It is a three-dimensional structure schematic view of the lengthened rod body of the present application;

[0017] Figure 3 It is a sectional structure schematic view of the mounting pipe of the present application;

[0018] Figure 4 It is a three-dimensional structure schematic view of the present application Figure 2Enlarged view at A.

[0019] Figure: 1, reamer body; 2, chip flute; 3, positioning head; 4, first connecting piece; 41, extension rod body; 42, first connecting hole; 43, fixing screw; 44, mounting pipe; 45, limiting bolt; 46, adjusting groove; 47, guide groove; 48, limiting strip; 5, second connecting piece; 6, fixed block; 7, second connecting hole; 8, fixed bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one

[0021] As Figures 1 to 4 shown, a deep hole forming reamer with detachable extension rod, including reamer body 1, the outer surface of reamer body 1 is provided with chip flute 2, one end of reamer body 1 is provided with adjusting mechanism for adjusting the length of reamer;

[0022] Adjusting mechanism includes first connecting piece 4, first connecting piece 4 is arranged at one end of reamer body 1, the tail end of first connecting piece 4 is connected with extension rod body 41, the inside of extension rod body 41 is provided with first connecting hole 42 for plug-in connection with first connecting piece 4, the outer surface of extension rod body 41 is provided with fixing screw 43 for abutment connection with first connecting piece 4, the lower end of extension rod body 41 is telescopically connected with mounting pipe 44, the outer surface of mounting pipe 44 is provided with limiting bolt 45 for abutment connection with extension rod body 41, the other end of reamer body 1 is fixed with positioning head 3, the inside of mounting pipe 44 is provided with adjusting groove 46, the outer surface of extension rod body 41 is provided with guide groove 47, the inside of guide groove 47 is slidably connected with limiting strip 48 fixedly connected with mounting pipe 44, through the chip flute 2 arranged on the reamer body 1, it is convenient to discharge the waste chip generated during processing to the outside, and the positioning head 3 and the hole of the workpiece cooperate to play the role effect of positioning, reduce the deviation of reamer body 1, when the length of reamer body 1 needs to be adjusted, the limiting bolt 45 on the mounting pipe 44 is loosened, then the fixing of extension rod body 41 is released, under the cooperation of adjusting groove 46, extension rod body 41 can be pulled to move, then the length of reamer body 1 is adjusted, and under the cooperation of guide groove 47 and limiting strip 48, it can be guaranteed that mounting pipe 44 can normally drive extension rod body 41 to rotate when rotating. Embodiment two

[0023] In addition to comprising all the technical features in embodiment one, the embodiment comprises: the lower surface of the mounting pipe 44 is fixed with a second connecting piece 5, the lower end of the second connecting piece 5 is connected with a fixing block 6, the inside of the fixing block 6 is provided with a second connecting hole 7 which is plugged with the second connecting piece 5, the outer surface of the fixing block 6 is provided with a fixing bolt 8 which is abutted with the second connecting piece 5, the fixing screw 43 on the lengthening rod body 41 is unscrewed, so that the first connecting piece 4 on the reamer body 1 is separated from the first connecting hole 42, the reamer body 1 is disassembled, the fixing bolt 8 on the fixing block 6 is unscrewed, so that the second connecting piece 5 on the mounting pipe 44 is separated from the second connecting hole 7, then the first connecting piece 4 on the reamer body 1 is connected and fixed with the second connecting hole 7, so that the lengthening assembly is disassembled, which is convenient for use in different environments and improves the practicability.

[0024] Working principle: before using the deep hole forming reamer with detachable lengthening rod, the fixing block 6 is connected and fixed with the driving device, so that the reamer body 1 is driven to rotate to process the workpiece, the chip removal groove 2 provided on the reamer body 1 is convenient for discharging the waste chips generated during processing to the outside, and the positioning head 3 cooperates with the hole of the workpiece to play a positioning effect, which reduces the deviation of the reamer body 1, when the length of the reamer body 1 needs to be adjusted, the limiting bolt 45 on the mounting pipe 44 is loosened, so that the lengthening rod body 41 is fixed, under the cooperation of the adjusting groove 46, the lengthening rod body 41 can be pulled to move, so that the length of the reamer body 1 is adjusted, and under the cooperation of the guide groove 47 and the limiting strip 48, the mounting pipe 44 can normally drive the lengthening rod body 41 to rotate when rotating, so as to ensure the normal rotation of the reamer body 1, after the adjustment is completed, the limiting bolt 45 can be tightened, so as to fix the lengthening rod body 41, avoiding accidental movement, when the lengthening assembly needs to be disassembled, the fixing screw 43 on the lengthening rod body 41 is unscrewed, so that the first connecting piece 4 on the reamer body 1 is separated from the first connecting hole 42, the reamer body 1 is disassembled, the fixing bolt 8 on the fixing block 6 is unscrewed, so that the second connecting piece 5 on the mounting pipe 44 is separated from the second connecting hole 7, then the first connecting piece 4 on the reamer body 1 is connected and fixed with the second connecting hole 7, so that the lengthening assembly is disassembled, which is convenient for use in different environments and improves the practicability.

[0025] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0026] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A deep hole forming reamer with a detachable extension rod, comprising a reamer body (1), characterized in that: The outer surface of the reamer body (1) is provided with a chip removal groove (2), and one end of the reamer body (1) is provided with an adjustment mechanism for adjusting the length of the reamer; The adjustment mechanism comprises a first connecting member (4), the first connecting member (4) being arranged at one end of the reamer body (1), the end of the first connecting member (4) being connected to an extension rod (41), the interior of the extension rod (41) being provided with a first connecting hole (42) for plugging and connecting with the first connecting member (4), and the outer surface of the extension rod (41) being provided with a fixing screw (43) for abutting and connecting with the first connecting member (4).

2. A deep hole forming reamer with a detachable extension rod according to claim 1, characterized in that: The lower end of the extended rod body (41) is telescopically connected to a mounting tube (44), and a limiting bolt (45) abutting against the extended rod body (41) is mounted on the outer surface of the mounting tube (44).

3. The deep hole forming reamer with a detachable extension rod according to claim 1, characterized in that: A positioning head (3) is fixed to the other end of the reamer body (1), and an adjustment slot (46) is provided inside the mounting tube (44).

4. The deep hole forming reamer with a detachable extension rod according to claim 3, characterized in that: A guide groove (47) is provided on the outer surface of the extended rod body (41), and a limit strip (48) fixedly connected to the mounting tube (44) is slidably connected inside the guide groove (47).

5. The deep hole forming reamer with a detachable extension rod according to claim 4, characterized in that: A second connecting piece (5) is fixed to the lower surface of the mounting tube (44).

6. The deep hole forming reamer with a detachable extension rod according to claim 5, characterized in that: The lower end of the second connecting member (5) is connected to a fixing block (6).

7. The deep hole forming reamer with a detachable extension rod according to claim 6, characterized in that: A second connection hole (7) for plugging and connecting with the second connection piece (5) is provided inside the fixing block (6), and a fixing bolt (8) for abutting and connecting with the second connection piece (5) is installed on the outer surface of the fixing block (6).

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