Standard sample machining and positioning auxiliary device

Abstract

The utility model discloses a standard sample machining and positioning auxiliary device which comprises an auxiliary tool handle (10) and a drill bit connected to the auxiliary tool handle. A drill slider fixing groove is formed in the lower end of the auxiliary cutter handle, a drill connecting slider is arranged in the drill slider fixing groove, and the drill is connected to the side face of the drill connecting slider; the auxiliary tool handle can be conveniently clamped on a lathe tailstock, and the drill bit connected with the side face of the auxiliary tool handle can be used for easily drilling the end face of the standard sample; according to the device, the axis of the drill bit and the axis of the machine tool spindle can be more accurately aligned by utilizing the eccentric adjusting mechanism and matching with sliding adjustment of the drill bit connecting sliding block, so that errors generated when the auxiliary tool handle is clamped are made up.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation parts processing, in particular to a standard sample processing positioning auxiliary device. Background Art

[0002] In the process of forming aviation parts, it is often necessary to verify the mechanical properties of the parts during the forming or processing process, which must meet certain standard requirements. In order to reduce the data differences caused by the processing of standard samples, the aviation industry has also stipulated the processing of standard samples, and the shape and size of standard samples must meet the standard requirements. In the performance inspection of general aviation parts, the most commonly used sample processing is threaded circular samples. Half of these standard samples need to be rough turned, then fine turned and finally processed into standard samples. During the fine turning process, the top hole needs to be drilled for positioning. The drilling tool purchased before cannot be positioned with the tailstock due to structural reasons. The manual drilling method that has been used has led to various problems such as inaccurate positioning and low production efficiency. Therefore, in order to improve efficiency, a special lathe punching tool was invented, which is matched with the lathe tailstock for use, greatly improving production efficiency. Utility Model Content

[0003] The utility model aims to provide a standard sample processing positioning auxiliary device, which can efficiently perform a drilling process on the end face of the standard sample.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A standard specimen processing positioning auxiliary device comprises an auxiliary tool handle and a drill bit connected to the auxiliary tool handle;

[0006] The lower end of the auxiliary tool handle is provided with a drill slider fixing groove, a drill connecting slider is arranged in the drill slider fixing groove, and the drill is connected to the side of the drill connecting slider through an eccentric adjustment mechanism.

[0007] An eccentric shaft matching hole is provided on the side of the drill bit connection slide block, the eccentric adjustment mechanism comprises an eccentric driving shaft rotatably connected in the eccentric shaft matching hole, and the drill bit is fixedly connected to the outer end of the eccentric driving shaft;

[0008] The axis of the drill bit is eccentrically arranged with respect to the axis of the eccentric drive shaft, and the offset is 15% to 25% of the diameter of the drill bit;

[0009] The drill bit connecting slide block has a worm receiving slot on its side that is connected to the eccentric shaft matching hole, and the drill bit connecting slide block has a worm shaft matching hole on its bottom that is connected to the worm receiving slot, and the axis of the worm shaft matching hole is perpendicular to the axis of the eccentric shaft matching hole.

[0010] A worm shaft is rotatably connected in the worm shaft matching hole, an eccentric driving worm is fixed at one end of the worm shaft located at the worm receiving slot, an eccentric driven worm wheel is fixed on the eccentric driving shaft, and the eccentric driving worm is meshingly connected with the eccentric driven worm wheel;

[0011] The lower end of the worm shaft is provided with an inner hexagonal hole.

[0012] Description: Use the eccentric adjustment mechanism to adjust the drill bit for offset and adjust the relative position between the axis of the drill bit and the axis of the machine tool spindle.

[0013] Preferably, a vertically extending sliding fit groove is provided on the side of the drill bit connecting slide block, a sliding constraint strip is fixed to the inner side wall of the drill bit slide block fixing groove, and the sliding constraint strip is slidingly fitted in the sliding fit groove.

[0014] Preferably, the drill bit connecting slide block has a vertically penetrating sliding adjustment hole, an internal thread is processed in the sliding adjustment hole, a sliding adjustment shaft is connected to the internal thread of the sliding adjustment hole, and the upper end of the sliding adjustment shaft is rotatably connected to the top of the drill bit slide block fixing groove;

[0015] An adjusting shaft support cover plate is fixed at the lower end of the drill bit slider fixing groove, and an adjusting shaft rotation matching hole is provided on the adjusting shaft support cover plate, and the lower end of the sliding adjusting shaft is rotationally connected in the adjusting shaft rotation matching hole;

[0016] The lower end of the sliding adjustment shaft is provided with an inner hexagonal hole.

[0017] Description: The eccentric adjustment mechanism, in conjunction with the sliding adjustment of the drill bit connection slide, enables the axis of the drill bit to be more accurately aligned with the axis of the machine tool spindle.

[0018] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0019] 1. The utility model has a reasonable structural design. The auxiliary tool handle is easy to clamp on the tailstock of the lathe. The drill bit connected to the side of the auxiliary tool handle can easily realize the drilling work on the end face of the standard specimen;

[0020] 2. The utility model utilizes an eccentric adjustment mechanism and cooperates with the sliding adjustment of the drill bit connection slide block to make the axis of the drill bit and the axis of the machine tool spindle more accurately aligned to compensate for the error when the auxiliary tool handle is clamped; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 yes Figure 1 Left view of;

[0023] Figure 3 yes Figure 1 Bottom view of .

[0024] In the figure, 10-auxiliary tool handle, 11-drill slider fixing groove, 12-drill connecting slider, 20-drill bit, 31-eccentric adjustment mechanism, 310-eccentric shaft matching hole, 311-eccentric driving shaft, 312-worm accommodating slot, 313-worm shaft matching hole, 314-worm shaft, 315-eccentric driving worm, 316-eccentric driven worm wheel, 321-sliding matching groove, 322-sliding constraint strip, 331-sliding adjustment hole, 332-sliding adjustment shaft, 333-adjustment shaft support cover plate, 334-adjustment shaft rotation matching hole. DETAILED DESCRIPTION

[0025] Combine the following Figure 1-Figure 3 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of the respective main views or structural schematic diagrams themselves.

[0026] Embodiment 1:

[0027] A standard specimen processing positioning auxiliary device, such as Figure 1 As shown, it includes an auxiliary tool handle 10, and a drill bit 20 connected to the auxiliary tool handle 10;

[0028] The lower end of the auxiliary tool handle 10 is provided with a drill slider fixing groove 11 , in which a drill connecting slider 12 is arranged, and the drill bit 20 is connected to the side of the drill connecting slider 12 through an eccentric adjustment mechanism 31 .

[0029] like Figure 1 As shown, the drill bit connecting slide block 12 has an eccentric shaft matching hole 310 on its side, the eccentric adjustment mechanism 31 includes an eccentric driving shaft 311 rotatably connected to the eccentric shaft matching hole 310, and the drill bit 20 is fixedly connected to the outer end of the eccentric driving shaft 311;

[0030] The axis of the drill bit 20 is eccentrically arranged with respect to the axis of the eccentric drive shaft 311, and the offset is 25% of the diameter of the drill bit 20;

[0031] The side of the drill bit connecting slide block 12 has a worm receiving slot 312 connected to the eccentric shaft matching hole 310. Figure 2 As shown, the bottom of the drill bit connecting slide block 12 has a worm shaft matching hole 313 connected to the worm receiving slot 312, and the axis of the worm shaft matching hole 313 and the axis of the eccentric shaft matching hole 310 are perpendicular to each other;

[0032] A worm shaft 314 is rotatably connected in the worm shaft matching hole 313, an eccentric driving worm 315 is fixed to one end of the worm shaft 314 located at the worm receiving slot 312, an eccentric driven worm wheel 316 is fixed to the eccentric driving shaft 311, and the eccentric driving worm 315 is meshedly connected with the eccentric driven worm wheel 316;

[0033] like Figure 3 As shown, the lower end of the worm shaft 314 has an inner hexagonal hole.

[0034] like Figure 3 As shown, a vertically extending sliding fit groove 321 is provided on the side of the drill bit connecting slide block 12 , and a sliding constraint strip 322 is fixed to the inner side wall of the drill bit slide block fixing groove 11 , and the sliding constraint strip 322 is slidingly fitted in the sliding fit groove 321 .

[0035] like Figure 1 As shown, the drill bit connecting slide block 12 has a vertically penetrating sliding adjustment hole 331, the sliding adjustment hole 331 is processed with an internal thread, the sliding adjustment hole 331 is internally threaded with a sliding adjustment shaft 332, and the upper end of the sliding adjustment shaft 332 is rotatably connected with the top of the drill bit slide block fixing groove 11;

[0036] An adjusting shaft support cover plate 333 is fixed to the lower end of the drill slider fixing groove 11. The adjusting shaft support cover plate 333 has an adjusting shaft rotation matching hole 334. The lower end of the sliding adjusting shaft 332 is rotatably connected to the adjusting shaft rotation matching hole 334.

[0037] like Figure 3 As shown, the lower end of the sliding adjustment shaft 332 has an inner hexagonal hole.

[0038] Embodiment 2:

[0039] The difference from the embodiment 1 is that the axis of the drill bit 20 is eccentrically arranged with respect to the axis of the eccentric driving shaft 311, and the offset is 15% of the diameter of the drill bit 20;

[0040] Embodiment 3:

[0041] The difference from the embodiment 1 is that the axis of the drill bit 20 is eccentrically arranged with respect to the axis of the eccentric driving shaft 311, and the offset is 20% of the diameter of the drill bit 20;

[0042] In the actual application process of the utility model, the standard sample to be processed is a shaft-like part with thick ends and thin middle, and it is necessary to drill holes on the end surface of the standard sample;

[0043] The auxiliary tool handle 10 is clamped and fixed on the tailstock of the machine tool, and the position of the drill bit 20 is adjusted so that the axis of the drill bit 20 coincides with the axis of the main shaft of the machine tool;

[0044] The specific adjustment process is to use the hexagonal tool to rotate the worm shaft 314, the worm shaft 314 drives the eccentric drive worm 315 to rotate, the eccentric drive worm 315 drives the eccentric driven worm wheel 316 to rotate together with the eccentric drive shaft 311, and the eccentric drive shaft 311 drives the drill bit 20 to deflect, and the drill bit connecting slide block 12 is adjusted to slide offset, so that the axis of the drill bit 20 coincides with the axis of the machine tool spindle;

[0045] The sliding adjustment shaft 332 is rotated by using a hexagonal tool, and the sliding adjustment shaft 332 drives the drill bit connecting slider 12 to move along the sliding constraint strip 322, and the drill bit connecting slider 12 then drives the drill bit 20 to move together, and under the joint adjustment of the movement of the connecting slider 12 and the deflection of the eccentric driving shaft 311, the axis of the drill bit 20 coincides with the axis of the machine tool spindle;

[0046] The standard sample is clamped on the chuck of the machine tool spindle, the tailstock of the machine tool is moved along the guide rail, and the end face of the standard sample is drilled using the drill bit 20.

Claims

1. A standard sample processing positioning auxiliary device, characterized in that: It comprises an auxiliary tool handle (10) and a drill bit (20) connected to the auxiliary tool handle (10); The lower end of the auxiliary tool handle (10) is provided with a drill slider fixing groove (11), a drill connecting slider (12) is arranged in the drill slider fixing groove (11), and the drill bit (20) is connected to the side of the drill connecting slider (12) via an eccentric adjustment mechanism (31); The drill bit connecting slide block (12) has an eccentric shaft matching hole (310) on its side, the eccentric adjustment mechanism (31) comprises an eccentric driving shaft (311) rotatably connected to the eccentric shaft matching hole (310), and the drill bit (20) is fixedly connected to the outer end of the eccentric driving shaft (311); The axis of the drill bit (20) is eccentrically arranged with respect to the axis of the eccentric driving shaft (311), and the offset is 15% to 25% of the diameter of the drill bit (20); The drill bit connecting slider (12) has a worm receiving slot (312) on its side and connected to the eccentric shaft matching hole (310), and the drill bit connecting slider (12) has a worm shaft matching hole (313) on its bottom and connected to the worm receiving slot (312), and the axis of the worm shaft matching hole (313) is perpendicular to the axis of the eccentric shaft matching hole (310); A worm shaft (314) is rotatably connected in the worm shaft matching hole (313); an eccentric driving worm (315) is fixed to one end of the worm shaft (314) located in the worm receiving slot (312); an eccentric driven worm wheel (316) is fixed to the eccentric driving shaft (311); and the eccentric driving worm (315) is meshingly connected with the eccentric driven worm wheel (316); The lower end of the worm shaft (314) has an inner hexagonal hole.

2. A standard sample processing positioning auxiliary device according to claim 1, characterized in that: The drill bit connecting slide block (12) has a vertically extending sliding fit groove (321) on its side, and a sliding constraint strip (322) is fixed to the inner side wall of the drill bit slide block fixing groove (11), and the sliding constraint strip (322) is slidingly fitted in the sliding fit groove (321).

3. A standard sample processing positioning auxiliary device according to claim 1, characterized in that: The drill bit connecting slide block (12) has a vertically penetrating sliding adjustment hole (331), an internal thread is processed in the sliding adjustment hole (331), a sliding adjustment shaft (332) is connected to the internal thread of the sliding adjustment hole (331), and the upper end of the sliding adjustment shaft (332) is rotatably connected to the top of the drill bit slide block fixing groove (11); An adjustment shaft support cover plate (333) is fixed at the lower end of the drill bit slider fixing groove (11), and an adjustment shaft rotation matching hole (334) is provided on the adjustment shaft support cover plate (333), and the lower end of the sliding adjustment shaft (332) is rotationally connected to the adjustment shaft rotation matching hole (334); The lower end of the sliding adjustment shaft (332) has an inner hexagonal hole.

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