Aero-engine positioning cover run-out inspection tool

Abstract

The utility model provides an aero-engine positioning cover run-out detection tool, which comprises a base (1), a U-shaped detection seat (3), an indexing pin (7) and a linear slide rail (11), one side of the upper surface of the base (1) is fixedly provided with the detection seat (3), the other side of the upper surface of the base (1) is fixedly provided with the linear slide rail (11), and a slide seat of the linear slide rail (11) is fixedly provided with a supporting mechanism; a dial indicator (20) is detachably and fixedly mounted on the supporting mechanism; according to the utility model, through the overall arrangement, large-batch products can be rapidly clamped, positioned and measured, and the use is efficient and convenient. The ball bearing is used for limiting and supporting, the indexing pin is used for quickly positioning, and the linear sliding rail conveniently moves efficiently and quickly. Meanwhile, clamping and positioning are fast, measurement is convenient and accurate, and the measurement efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of inspection tools, and particularly relates to a jig for inspecting the runout of an aviation engine positioning cover. Background Art

[0002] The aviation engine positioning cover is a high-precision product in large quantities. The existing three-coordinate measuring clamping and positioning takes a long time, with extremely low efficiency. The measuring personnel operate complexly, are prone to fatigue after a long time, and cannot meet the factory's shipping requirements.

[0003] Therefore, it is very necessary to invent a jig for inspecting the runout of an aviation engine positioning cover. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a jig for inspecting the runout of an aviation engine positioning cover, which includes a base, a U-shaped detection seat, a dividing pin, and a linear slide rail. One side of the upper surface of the base is fixedly installed with a detection seat, and the other side of the upper surface of the base is fixedly installed with a linear slide rail. A support mechanism is fixedly installed on the slide seat of the linear slide rail; a dial indicator is detachably and fixedly installed on the support mechanism.

[0005] Preferably, a through hole for inspecting the positioning cover is opened on one side of the U-shaped detection seat close to the linear slide rail, and two support shafts are evenly and fixedly installed in the opening of the U-shaped detection seat. Two ball bearings are evenly and rotatably installed on each of the support shafts through C-shaped circlips; the inspection probe of the dial indicator extends into the positioning cover through the through hole.

[0006] Preferably, the dividing pin is fixedly installed on the U-shaped detection seat, and the end of the dividing pin is in the opening of the U-shaped detection seat. A nylon pressing head is fixedly installed at one end of the dividing pin in the opening of the U-shaped detection seat.

[0007] Preferably, a retaining strip is detachably and fixedly installed on one side of the upper surface of the base close to the linear slide rail, and adjusting feet are detachably and fixedly installed at the four corners of the bottom surface of the base.

[0008] Preferably, a ring groove for installing a C-shaped circlip is opened on each of the support shafts, and the C-shaped circlip is stuck in the corresponding ring groove.

[0009] Preferably, the support mechanism includes an internally threaded cylinder and a support seat. A positioning bolt is installed in the internally threaded cylinder through a thread. Two support arms are evenly and fixedly installed on the outer peripheral surface of the internally threaded cylinder; ball sockets are opened at the outer ends of the two support arms; the support seat is fixedly installed on the slide seat of the linear slide rail, and a ball head connecting rod is fixedly installed on the support seat; the support seat is rotationally and magnetically connected to the ball socket on one of the support arms through the ball head connecting rod; the ball socket on the other support arm is clamped with the dial indicator.

[0010] Preferably, a ball head link two is detachably and fixedly installed at one end of the dial indicator, and the dial indicator is clamped with a ball socket on the other support arm through the ball head link two.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] With the overall setting of the utility model, for a large number of products, it can quickly clamp and position, quickly measure, and is efficient and convenient to use. Through the limit support of the ball bearing, the quick positioning of the indexing pin, and the convenient movement of the linear slide rail, it is efficient and fast. At the same time, the clamping and positioning are fast, the measurement is convenient and accurate, and the measurement efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the utility model.

[0014] Figure 2 is the structural schematic diagram of the U-shaped detection seat and the support shaft of the utility model.

[0015] Figure 3 is the structural schematic diagram of the support mechanism of the utility model.

[0016] In the figure:

[0017] Base 1, adjusting foot cup 2, U-shaped detection seat 3, positioning cover 4, support shaft 5, ball bearing 6, indexing pin 7, internal thread cylinder 8, positioning bolt 9, nylon pressing head 10, linear slide rail 11, support seat 13, C-shaped circlip 14, retaining strip 15, support arm 16, dial indicator 20. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only a 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0019] The following further describes the utility model with reference to the drawings:

[0020] Embodiment:

[0021] As shown in Figure 1 to Figure 3 shown:

[0022] The utility model provides an aircraft engine positioning cover runout inspection tool, comprising a base 1, a U-shaped inspection seat 3, a dividing pin 7 and a linear slide 11, one side of the upper surface of the base 1 is fixedly installed with the inspection seat 3, which is used for fast clamping and positioning parts, and aligning the position of the positioning cover 4 so as to measure the inner circle runout, and the other side of the upper surface of the base 1 is fixedly installed with the linear slide 11, so as to adjust the distance between the dial indicator 20 and the positioning cover 4, so as to quickly move the dial indicator 20 to measure the positioning cover 4, and a support mechanism is fixedly installed on the slide seat of the linear slide 11, so as to adjust the angular position of the dial indicator 20; the dial indicator 20 is detachably fixedly installed on the support mechanism, so as to inspect the runout of the aircraft engine positioning cover;

[0023] A through hole for inspecting the positioning cover 4 is provided on one side of the U-shaped inspection seat 3 close to the linear guide rail 11, and two support shafts 5 are evenly and fixedly installed in the opening of the U-shaped inspection seat 3, and two ball bearings 6 are evenly and rotatably installed on each support shaft 5 through a C-shaped retaining ring 14, so as to support the positioning cover 4 and ensure the stability and smoothness of the positioning cover 4 during rotation; the inspection probe of the dial indicator 20 extends into the positioning cover 4 through the through hole;

[0024] The indexing pin 7 is fixedly mounted on the U-shaped detection seat 3, and the end of the indexing pin 7 is located in the opening of the U-shaped detection seat 3. A nylon pressure head 10 is fixedly mounted on one end of the indexing pin 7 located in the opening of the U-shaped detection seat 3 so as to contact with the positioning cover 4 and limit the positioning cover 4.

[0025] When measuring, pull the indexing pin 7 back, place the positioning cover 4 on the ball bearing 6, reset the indexing pin 7, press the positioning cover 4 against the reference surface of the detection seat 3, and then push the linear slide rail 11 equipped with the dial indicator 20 to the position where the needle needs to be measured. Slightly turn the positioning cover 4 to directly measure the inner circle runout of the positioning cover.

[0026] A stop bar 15 is detachably fixedly mounted on one side of the upper surface of the base 1 close to the linear guide rail 11 , and an adjustable foot cup 2 is detachably fixedly mounted at each of the four corners of the bottom surface of the base 1 .

[0027] The support shafts 5 are each provided with an annular groove in which a C-shaped retaining ring 14 is installed, and the C-shaped retaining ring 14 is clamped in the corresponding annular groove.

[0028] The support mechanism includes an internally threaded cylinder 8 and a support base 13. A positioning bolt 9 is installed in the internally threaded cylinder 8 by means of threads. By setting the positioning bolt 9, after adjusting the position of the dial indicator 20, the positioning bolt 9 can be rotated so that the bottom end of the positioning bolt 9 abuts against the upper surface of the base 1, thereby fixing the slider of the linear slide rail 11 firmly, preventing the dial indicator 20 from moving, and thus ensuring the stability of the dial indicator 20. Two support arms 16 are evenly and fixedly installed on the outer peripheral surface of the internally threaded cylinder 8 for disassembly and assembly between the support base 13 and the dial indicator 20; ball sockets are formed at the outer ends of the two support arms 16; the support base 13 is fixedly installed on the slider of the linear slide rail 11, and a ball head connecting rod is fixedly installed on the support base 13; the support base 13 is rotationally and magnetically connected to the ball socket on one of the support arms 16 through the ball head connecting rod; the ball socket on the other support arm 16 is clamped with the dial indicator 20.

[0029] A ball head connecting rod two is detachably and fixedly installed at one end of the dial indicator 20, and the dial indicator 20 is clamped with the ball socket on the other support arm 16 through the ball head connecting rod two.

[0030] This tooling is used for the rapid measurement and determination of the inner circle, outer circle and end face runout of the positioning cover of aero-engines. The positioning cover 4 is quickly installed and tightened through the elastic indexing pin 7. Two groups of ball bearings 6 ensure the horizontal positioning and stable rotation of the parts. The low wear of the ball bearings 6 effectively improves the durability of the measuring tooling. The linear slide rail 11 greatly reduces the adjustment and movement time of the measuring instrument, thereby realizing the rapid clamping and positioning and rapid measurement of a large number of parts, doubling the measurement efficiency, and playing an important role in the processing and measurement of a large number of positioning covers.

[0031] Using the technical solution of the present invention, or a person skilled in the art inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A jig for inspecting the runout of the positioning cover of an aero-engine, characterized in that: It includes a base (1), a U-shaped detection seat (3), a indexing pin (7) and a linear slide rail (11). On one side of the upper surface of the base (1), a detection seat (3) is fixedly installed, and on the other side of the upper surface of the base (1), a linear slide rail (11) is fixedly installed. A support mechanism is fixedly installed on the slide seat of the linear slide rail (11); A dial indicator (20) is detachably and fixedly installed on the support mechanism; On one side of the U-shaped detection seat (3) close to the linear slide rail (11), a through hole for the inspection positioning cover (4) is provided, and two support shafts (5) are evenly and fixedly installed in the opening of the U-shaped detection seat (3). On each of the support shafts (5), two ball bearings (6) are evenly and rotatably installed through C-shaped circlips (14); The inspection probe of the dial indicator (20) extends into the positioning cover (4) through the through hole; The indexing pin (7) is fixedly installed on the U-shaped detection seat (3), and the end of the indexing pin (7) is in the opening of the U-shaped detection seat (3). A nylon press head (10) is fixedly installed at one end of the indexing pin (7) in the opening of the U-shaped detection seat (3).

2. The jig for inspecting the runout of the positioning cover of an aero-engine according to claim 1, wherein: On one side of the upper surface of the base (1) close to the linear slide rail (11), a stop bar (15) is detachably and fixedly installed, and adjusting feet (2) are detachably and fixedly installed at the four corners of the bottom surface of the base (1).

3. The jig for inspecting the runout of the positioning cover of an aero-engine according to claim 1, wherein: The support mechanism includes an internally threaded cylinder (8) and a support seat (13). A positioning bolt (9) is installed in the internally threaded cylinder (8) through threads. Two support arms (16) are evenly and fixedly installed on the outer circumferential surface of the internally threaded cylinder (8); Ball sockets are provided at the outer ends of the two support arms (16); The support seat (13) is fixedly installed on the slide seat of the linear slide rail (11), and a ball head connecting rod is fixedly installed on the support seat (13); The support seat (13) is rotatably and magnetically connected to the ball socket on one of the support arms (16) through the ball head connecting rod; The ball socket on the other support arm (16) is clamped with the dial indicator (20).

4. The inspection tooling for the runout of the positioning cover of an aero-engine according to claim 3, characterized in that: One end of the dial indicator (20) is detachably and fixedly installed with a ball head connecting rod two, and the dial indicator (20) is clamped with the ball socket on the other support arm (16) through the ball head connecting rod two.

Images