Fine boring cutter bar structure with micron-sized precise adjustment function

Abstract

The utility model belongs to the technical field of machining tools, and particularly provides a fine boring cutter bar structure with a micron-order fine adjustment function, which comprises a cutter bar body, a boring head slider, a gear adjusting rod, an adjusting ring and an end cover. The boring head sliding block is arranged in the cutter bar body in a sliding mode, the gear adjusting rod is rotationally arranged in the cutter bar body, the rear end of the cutter bar body is rotationally sleeved with the adjusting ring, and the end cover is arranged on the cutter bar body and located at the rear end of the adjusting ring. A first gear ring is arranged on the end face of the adjusting ring, a second gear ring is arranged on the gear adjusting rod, and the first gear ring is meshed with the second gear ring. Threads are arranged on the gear adjusting rod, an adjusting helical tooth row is installed on the gear adjusting rod in a threaded mode, and helical teeth meshed with the adjusting helical tooth row are arranged on the boring head sliding block. The adjusting ring is rotated, the adjusting ring drives the gear adjusting rod to rotate, the adjusting helical tooth row can displace at a set screw pitch due to threads on the gear adjusting rod, the displacement of the adjusting helical tooth row can drive the boring head sliding block to displace at a set tooth row angle, and therefore precise adjustment of the diameter of the cutter is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining tool technical field, especially a kind of precision boring cutter bar structure with micron level precision adjustment function. BACKGROUND

[0002] In hole processing field, precision boring cutter is widely used in machining with its high machining precision, good hole surface quality, low use cost and simple operation characteristics.For the high-precision hole processing requirement, precision boring cutter usually needs to have fine adjustment function, the adjustment precision of the precision boring cutter on the market is poor, the general fine adjustment precision is 0.01, and the size is unstable when using.On the other hand, the applicable diameter of most precision boring cutters on the market is relatively small, most of them are below D50, when facing larger diameter processing requirements, precision boring unit or cutter holder form is usually used for processing, and this structure limits the processing size, when facing different processing diameters, users need to purchase corresponding diameter cutter, which greatly increases the use cost of users.

[0003] Therefore, it is necessary to design a precision boring cutter bar structure with micron level precision adjustment function to solve the above technical problems. INVENTION CONTENTS

[0004] In view of the above problems existing in the prior art, the utility model provides a precision boring cutter bar structure with micron level precision adjustment function, solves the problem of poor adjustment precision of precision boring cutter, has high adjustment precision, and the applicable diameter is greatly improved, and the diameter adjustment range can also meet the needs of different products of users.

[0005] Technical scheme: in order to realize the above purpose, the utility model provides a precision boring cutter bar structure with micron level precision adjustment function, including cutter bar body, boring head sliding block, gear adjusting rod, adjusting ring and end cover;

[0006] The boring head sliding block is slidably arranged in the cutter bar body, the gear adjusting rod is rotatably arranged in the cutter bar body, the adjusting ring is rotatably sleeved at the rear end of the cutter bar body, and the end cover is arranged on the cutter bar body and located at the rear end of the adjusting ring.

[0007] The end surface of the adjusting ring is provided with a gear ring one, the gear adjusting rod is provided with a gear ring two, and the gear ring one is engaged with the gear ring two.

[0008] Thread is arranged on the gear adjusting rod, adjusting helical gear row is installed on the thread of the gear adjusting rod, and the boring head sliding block is provided with helical gear engaged with the adjusting helical gear row.

[0009] When adjusting, the adjusting ring is rotated, the adjusting ring transmits the torque to the gear adjusting rod through the gear ring one and the gear ring two, the gear adjusting rod is rotated, the adjusting helical gear row on the upper portion of the gear adjusting rod is displaced due to the threads on the gear adjusting rod with a set pitch, the displacement of the adjusting helical gear row drives the boring head slider to be displaced with a set gear row angle, thereby the precise adjustment of the tool diameter is completed.

[0010] Further, the front end of the tool bar body is provided with a boring head slider mounting hole and a gear adjusting rod mounting hole which are perpendicular to each other, the boring head slider is arranged in the boring head slider mounting hole at the front end, and the gear adjusting rod is arranged in the gear adjusting rod mounting hole.

[0011] Further, the boring head slider is provided with a step at one end, and the step is in contact with the bottom surface of the slider limiting block for limiting.

[0012] Further, the front end surface of the tool bar body is provided with a mounting groove, the mounting groove is arranged in the boring head slider mounting hole, a boring head mounting transition block is arranged in the mounting groove, and the boring head mounting transition block is arranged on the boring head slider through a countersunk screw.

[0013] Further, the gear adjusting rod mounting hole is circular at both ends and is rectangular in the middle, the adjusting helical gear row is arranged in the middle rectangular hole, a pad one is arranged on the gear adjusting rod, the pad one is arranged in the circular hole on one side, a pad two and a pad three are arranged in the circular hole on the other side, the pad two and the pad three are connected with the gear adjusting rod through pad screws, and a pad four is arranged on the back surface of the adjusting helical gear row.

[0014] Further, the adjusting ring is provided with a scale line, a wave spring is arranged between the adjusting ring and an end cover, and the end cover is fixed on the tool bar body through end cover mounting screws.

[0015] Further, the boring head slider is provided with a step at one end, and the step is in contact with the bottom surface of the slider limiting block for limiting.

[0016] Compared with the prior art, the adjusting structure for the T series blade type reamer has the following beneficial effects:

[0017] 1.The utility model provides a kind of precision boring cutter bar structure with micron level precision adjustment function, rotation adjustment ring, adjustment ring passes gear ring one and gear ring two and is transmitted to gear adjusting rod on torque, gear adjusting rod occurs rotation, its upper adjustment helical gear row will be displaced due to the thread on gear adjusting rod with set pitch, the displacement of adjustment helical gear row will drive boring head slider to be displaced with set gear row angle, the precision adjustment of tool diameter is completed by high-precision gear and gear row cooperation, and the stability of simultaneous use is greatly improved.

[0018] 2.A scale line is provided on the adjustment ring, and the large-diameter gear ring on the adjustment ring is matched with the scale line to make the adjustment more delicate and convenient during use, so that the situation of over-adjustment or under-adjustment is less likely to occur, and the repeated accuracy of size adjustment is also ensured.

[0019] 3.The utility model can install boring cutter head of different diameter sections, and the tool is suitable for a wide range of diameters, reducing the cost of customers using spare tools. DRAWINGS

[0020] Figure 1 It is an explosion schematic view of the precision boring cutter bar structure with micron level precision adjustment function of the utility model (omitting aluminum alloy outer sleeve) ;

[0021] Figure 2 It is a structural schematic view of the precision boring cutter bar structure with micron level precision adjustment function of the utility model (omitting aluminum alloy outer sleeve) ;

[0022] Figure 3 It is a left view of the precision boring cutter bar structure with micron level precision adjustment function of the utility model;

[0023] Figure 4 It is Figure 3 A-A sectional view;

[0024] Figure 5 It is Figure 3 B-B sectional view;

[0025] Figure 6 It is a cooperation schematic view of boring head slider, gear adjusting rod and adjustment ring of the utility model.

[0026] In the figure: 100 - cutter bar body, 101 - boring head slider mounting hole, 102 - gear adjusting rod mounting hole, 200 - boring head slider, 201 - boring head mounting transition block, 202 - countersunk screw, 300 - slider limiting block, 301 - limiting block mounting screw, 400 - gear adjusting rod, 401 - pad one, 402 - pad two, 403 - pad four, 404 - pad three, 405 - adjusting helical tooth row, 406 - pad screw, 407 - gear ring two, 500 - adjusting ring, 501 - wave spring, 502 - gear ring one, 600 - end cover, 601 - end cover mounting screw, 700 - aluminum alloy outer sleeve. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. The utility model embodiments include the following parts:

[0028] As Figures 1-6 shown, a fine boring cutter bar structure with micron-level precision adjustment function, characterized in that, comprising cutter bar body 100, boring head slider 200, gear adjusting rod 400, adjusting ring 500 and end cover 600;

[0029] The boring head slider 200 is slidingly arranged in the cutter bar body 100, the gear adjusting rod 400 is rotatably arranged in the cutter bar body 100, the adjusting ring 500 is rotatably sleeved at the rear end of the cutter bar body 100, and the end cover 600 is arranged on the cutter bar body 100 and located at the rear end of the adjusting ring 500;

[0030] The end face of the adjusting ring 500 is provided with a gear ring one 502, the gear adjusting rod 400 is provided with a gear ring two 407, and the gear ring one 502 is engaged with the gear ring two 407.

[0031] The gear adjusting rod 400 is provided with a thread, the gear adjusting rod 400 is provided with an adjusting helical tooth row 405, and the boring head slider 200 is provided with a helical tooth engaged with the adjusting helical tooth row 405.

[0032] As Figure 6 shown, by rotating the adjusting ring 500, the gear adjusting rod 400 can be driven to rotate at a certain gear ratio, the adjusting tooth row 405 on the gear adjusting rod 400 will be displaced due to the thread on the gear adjusting rod 400 with a set pitch, the displacement of the adjusting tooth row 405 will drive the boring head slider 200 to displace at a set tooth row angle, through the transformation of three layers of proportion, combined with high-precision part cooperation, high-precision precision size adjustment can be realized.

[0033] Among them, refer to Figure 1The front end of the tool bar body 100 is provided with a boring head sliding block mounting hole 101 and a gear adjusting rod mounting hole 102 perpendicular to each other, the boring head sliding block 200 is arranged in the boring head sliding block mounting hole 101 at the front end, and the gear adjusting rod 400 is arranged in the gear adjusting rod mounting hole 102.

[0034] As shown in Figure 1 and Figure 4 The boring head sliding block 200 is arranged in the boring head sliding block mounting hole 101 at the front end, and the gear adjusting rod 400 is arranged in the gear adjusting rod mounting hole 102.

[0035] In addition, the front end face of the tool bar body 100 is provided with a mounting groove, the mounting groove is provided with the boring head sliding block mounting hole 101, the boring head mounting transition block 201 is arranged in the mounting groove, and the boring head mounting transition block 201 is arranged on the boring head sliding block 200 through the countersunk screw 202.

[0036] In addition, the gear adjusting rod mounting hole 102 is circular at both ends and rectangular in the middle, the adjusting helical tooth row 405 is arranged in the middle rectangular hole, the pad one 401 is arranged on the gear adjusting rod 400, the pad one 401 is arranged in the circular hole at one side, the pad two 402 and the pad three 404 are arranged in the circular hole at the other side, the pad two 402 and the pad three 404 are connected with the gear adjusting rod 400 through the pad screw 406, and the back surface of the adjusting helical tooth row 405 is provided with the pad four 403. The adjusting helical tooth row 405 moves in the air in the rectangular hole, and under the action of the pad four 403, the adjusting helical tooth row 405 cannot rotate, so that the rotation angle of the adjusting ring 500 can be accurately transmitted to the adjusting helical tooth row 405, and the precision of adjustment is ensured.

[0037] The adjusting ring 500 is provided with a scale line, the adjusting ring 500 and the end cover 600 are provided with the wave spring 501, and the end cover is fixed on the tool bar body 100 through the end cover mounting screw 601. The scale line of the adjusting ring 500 is set according to the actual required adjustment precision, and in the embodiment, the scale line is a 0.001 precision scale line, which is more delicate and convenient to use, and is not easy to appear over-adjusted or not in place, and also ensures the repeated precision of size adjustment. The wave spring 501 provides axial force for the adjusting ring 500, so that the gear ring one 501 on the adjusting ring 500 and the gear ring two 407 exist pre-tightening force, and the two are always in meshing state to ensure the precision of transmission.

[0038] Further, the aluminum alloy cover 700 is arranged on the tool bar body 100.

[0039] The utility model discloses when installing, the boring head slider 200 is installed into boring head slider mounting hole 101, installs boring head installation transition block 201 on boring head slider 200 through countersunk screw 202, installs slider limiting block 300 into tool bar body 100 through limiting block installation screw 301, and sleeve pad 401 is into gear adjustment rod 400, and the inner thread hole of adjusting tooth row 405 is screwed into gear adjustment rod 400, then is passed into gear adjustment rod mounting hole 102, and the bevel gear on boring head slider 200 is engaged with the tooth row of adjusting bevel gear row 405, then installs into pad four 403, and pad two 402 pad three 404 are in order into gear adjustment rod 400, and are locked through pad screw 406.

[0040] The adjusting ring 500 is sleeved into the tool bar body 100, the wave spring 501 is sleeved into the tool bar body 100, the end cover 600 is sleeved into the tool bar body 100, and the end cover mounting screw 601 is locked on the tool bar body 100, finally, the aluminum alloy cover 700 is installed.

[0041] It should be noted that different gear ratios and pitches can be used to achieve different precision adjustments.

[0042] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements can be made, and these improvements should also be considered as the protection scope of the utility model.

Claims

1. A precision boring bar structure with micron-level precision adjustment function, characterized in that, It includes a tool holder body (100), a boring head slider (200), a gear adjusting rod (400), an adjusting ring (500), and an end cap (600). The boring head slider (200) is slidably disposed inside the tool holder body (100), the gear adjusting rod (400) is rotatably disposed inside the tool holder body (100), the adjusting ring (500) is rotatably sleeved on the rear end of the tool holder body (100), and the end cap (600) is disposed on the tool holder body (100) and located at the rear end of the adjusting ring (500); The end face of the adjusting ring (500) is provided with a gear ring one (502), and the gear adjusting rod (400) is provided with a gear ring two (407). The gear ring one (502) meshes with the gear ring two (407). The gear adjusting rod (400) is threaded, and an adjusting helical gear row (405) is threadedly installed on the gear adjusting rod (400). The boring head slider (200) is provided with helical teeth that mesh with the adjusting helical gear row (405).

2. The precision boring bar structure with micron-level precision adjustment function according to claim 1, characterized in that, The front end of the tool holder body (100) is provided with a boring head slider mounting hole (101) and a gear adjusting rod mounting hole (102) that are perpendicular to each other. The boring head slider (200) is located in the boring head slider mounting hole (101) at the front end, and the gear adjusting rod (400) is located in the gear adjusting rod mounting hole (102).

3. The precision boring bar structure with micron-level precision adjustment function according to claim 1, characterized in that, It also includes a slider limiting block (300), which is embedded in the tool holder body (100). The slider limiting block (300) is fixed to the tool holder body (100) by a limiting block mounting screw (301). One end of the boring head slider (200) is provided with a step, which contacts and limits the movement of the bottom surface of the slider limiting block (300).

4. The precision boring bar structure with micron-level precision adjustment function according to claim 1, characterized in that, The front end face of the tool holder body (100) is provided with a mounting groove, which is connected to the boring head slider mounting hole (101). A boring head mounting transition block (201) is provided in the mounting groove, and the boring head mounting transition block (201) is mounted on the boring head slider (200) by countersunk screws (202).

5. A precision boring bar structure with micron-level precision adjustment function according to claim 2, characterized in that, The gear adjusting rod mounting hole (102) has round ends and a rectangular middle section. The adjusting helical gear row (405) is located in the rectangular middle hole. A pad (401) is fitted on the gear adjusting rod (400). The pad (401) is located in a round hole on one side. A pad (402) and a pad (404) are provided in a round hole on the other side. The pad (402) and the pad (404) are connected to the gear adjusting rod (400) by a pad screw (406). A pad (403) is provided on the back of the adjusting helical gear row (405).

6. The precision boring bar structure with micron-level precision adjustment function according to claim 1, characterized in that, The adjusting ring (500) is provided with scale lines, and a wave spring (501) is provided between the adjusting ring (500) and the end cover (600). The end cover is fixed to the tool holder body (100) by the end cover mounting screw (601).

7. The precision boring bar structure with micron-level precision adjustment function according to claim 1, characterized in that, It also includes an aluminum alloy jacket (700) which is disposed on the tool holder body (100).

Images