阅读说明：本技术 一种飞机可调放气活门丝杠组件间隙测量工装 (Frock is measured in adjustable gassing valve lead screw subassembly clearance of aircraft ) 是由 丁丰 章仕城 刘义光 李怀玉 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种飞机可调放气活门丝杠组件间隙测量工装,其包括用于固定滚珠丝杠的固定装置以及用于驱动螺母运动的驱动装置,固定装置包括底座、位于底座上的两个固定板以及用于限制滚珠丝杠转动的限位组件,滚珠丝杠两端分别与两个固定板转动连接,驱动装置包括用于驱动螺母向不同方向运动的两组驱动组件以及用于测量间隙的两组测量组件,驱动组件包括安装板、驱动板以及至少一个推杆,安装板相对两侧分别与两个固定板连接,驱动板与安装板滑动连接,驱动板位于螺母上,推杆一端与驱动板连接,另一端与固定板滑动连接。本发明的飞机可调放气活门丝杠组件间隙测量工装,通过固定装置和驱动装置,便于对螺母和滚珠丝杠之间的间隙进行测量。(The invention discloses a gap measuring tool for a lead screw assembly of an adjustable bleed valve of an airplane, which comprises a fixing device for fixing a ball screw and a driving device for driving a nut to move, wherein the fixing device comprises a base, two fixing plates positioned on the base and a limiting assembly for limiting the rotation of the ball screw, two ends of the ball screw are respectively and rotatably connected with the two fixing plates, the driving device comprises two groups of driving assemblies for driving the nut to move towards different directions and two groups of measuring assemblies for measuring gaps, each driving assembly comprises a mounting plate, a driving plate and at least one push rod, two opposite sides of the mounting plate are respectively connected with the two fixing plates, the driving plate is in sliding connection with the mounting plate, the driving plate is positioned on the nut, one end of each push rod is connected with the driving plate, and the other end of each push rod is in sliding connection with the fixing plate. The gap measuring tool for the screw assembly of the adjustable deflation valve of the airplane is convenient for measuring the gap between the nut and the ball screw through the fixing device and the driving device.)

1. The utility model provides an adjustable gassing valve lead screw subassembly clearance of aircraft measures frock which characterized in that: the device comprises a fixing device (3) used for fixing a ball screw (1) and a driving device (4) used for driving a nut (2) to move, wherein the fixing device (3) comprises a base (31), two fixing plates (32) positioned on the base (31) and a limiting component (33) used for limiting the ball screw (1) to rotate, two ends of the ball screw (1) are respectively connected with the two fixing plates (32) in a rotating manner, the driving device (4) comprises two groups of driving components (41) used for driving the nut (2) to move towards different directions and two groups of measuring components (42) used for measuring gaps, each driving component (41) comprises a mounting plate (411), a driving plate (412) and at least one push rod (413), two opposite sides of the mounting plate (411) are respectively connected with the two fixing plates (32), and the driving plates (412) are connected with the mounting plate (411) in a sliding manner, the driving plate (412) is located on the nut (2), one end of the push rod (413) is connected with the driving plate (412), and the other end of the push rod is connected with the fixing plate (32) in a sliding mode.

2. The adjustable bleed valve lead screw assembly clearance measurement frock of aircraft according to claim 1, its characterized in that: the measuring component (42) comprises a dial indicator (421) and a fixing part (422) used for fixing the position of the dial indicator (421), the dial indicator (421) is connected with a mounting plate (411) in a sliding mode, and a measuring head of the dial indicator (421) is connected with the driving plate (412) in a clamping mode.

3. The adjustable bleed valve lead screw assembly clearance measurement tool of the aircraft according to claim 2, characterized in that: the fixing piece (422) comprises at least one connecting lug (4221) and at least one abutting bolt (4222), the connecting lug (4221) is located on the dial indicator (421), and the abutting bolt (4222) penetrates through the connecting lug (4221) and abuts against the mounting plate (411).

4. The adjustable bleed valve lead screw assembly clearance measurement tool of the aircraft according to claim 2, characterized in that: seted up spout (4111) on mounting panel (411), just ball (1) axial setting is followed in spout (4111), drive plate (412) embedding in spout (4111), just drive plate (412) are followed spout (4111) slides.

5. The adjustable bleed valve lead screw assembly clearance measuring tool for the airplane as claimed in claim 4, wherein: a sliding block (4211) is embedded in the sliding groove (4111), and the sliding block (4211) is located on the dial indicator (421).

6. The adjustable bleed valve lead screw assembly clearance measurement tool of the aircraft according to claim 2, characterized in that: the driving plate (412) is provided with a bolt (5) used for being connected with a measuring head of the dial indicator (421), an embedding groove (4212) for embedding the bolt (5) is formed in the measuring head of the dial indicator (421), and a jack (4121) for inserting the measuring head of the dial indicator (421) and the bolt (5) is formed in the driving plate (412).

7. The adjustable bleed valve lead screw assembly clearance measurement frock of aircraft according to claim 1, its characterized in that: spacing subassembly (33) include sleeve (331) and actuating lever (332), sleeve (331) cover is located on actuating lever (332), just sleeve (331) with actuating lever (332) and fixed plate (32) all sliding connection, actuating lever (332) one end is connected with ball (1), the cross-sectional area of sleeve (331) and actuating lever (332) all sets up to the polygon.

8. The adjustable bleed valve lead screw assembly clearance measurement frock of aircraft according to claim 1, its characterized in that: the base (31) is provided with a plurality of fixing bolts (6) for fixing the base (31).

Technical Field

The invention relates to the field of lead screw assembly gap measuring equipment, in particular to a gap measuring tool for a lead screw assembly of an adjustable deflation valve of an airplane.

Background

The ball screw consists of a screw rod, a nut, a steel ball, a preforming piece, an inverter and a dust remover, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency.

In the related art, in the transmission process of the ball screw, the ball screw is used as an active body, the nut can be converted into linear motion along with the rotation angle of the screw according to the lead of the corresponding specification, and the passive workpiece can be connected with the nut through the nut seat, so that the corresponding linear motion is realized

In view of the related art in the above, the inventors considered that the ball screw is generally applied to a precision instrument, and therefore, it is necessary to measure the gap between the nut and the screw rod during use because the operating space between the screw rod and the nut is limited, resulting in difficulty in measurement.

Disclosure of Invention

In order to measure the gap between the screw rod and the nut conveniently, the invention provides a gap measuring tool for a screw rod assembly of an adjustable deflation valve of an airplane.

The invention provides a gap measuring tool for a lead screw assembly of an adjustable bleed valve of an airplane, which adopts the following technical scheme:

a gap measuring tool for a lead screw assembly of an adjustable bleed valve of an airplane comprises a fixing device for fixing a ball screw and a driving device for driving a nut to move, the fixing device comprises a base, two fixing plates positioned on the base and a limiting component used for limiting the rotation of the ball screw, two ends of the ball screw are respectively connected with the two fixing plates in a rotating way, the driving device comprises two groups of driving components for driving the nut to move towards different directions and two groups of measuring components for measuring the clearance, the driving component comprises a mounting plate, a driving plate and at least one push rod, two opposite sides of the mounting plate are respectively connected with the two fixing plates, the drive plate is connected with the mounting plate in a sliding mode, the drive plate is located on the nut, one end of the push rod is connected with the drive plate, and the other end of the push rod is connected with the fixing plate in a sliding mode.

By adopting the technical scheme, when the gap between the nut and the lead screw is measured, firstly, two ends of the ball lead screw are connected with the fixed plate through the limiting assemblies, then the push rod is pushed, the drive plate is pushed by the push rod, the drive plate drives the nut to move, so that the nut moves to an initial position, the numerical value of a starting point is recorded through the measuring assembly, then the nut is pushed to move to a terminal point in a reverse direction through the other push rod, and then the numerical value of the terminal point is recorded through the measuring assembly, so that the measurement of the gap between the nut and the lead screw is completed; the frock is measured in adjustable gassing valve lead screw subassembly clearance of aircraft of design, through fixing device and drive arrangement, is convenient for carry out the record to the numerical value of starting point position and terminal point position, and then is convenient for measure the clearance between nut and the ball.

Optionally, the measuring assembly comprises a dial indicator and a fixing part used for fixing the position of the dial indicator, the dial indicator is connected with the mounting plate in a sliding mode, and a measuring head of the dial indicator is connected with the drive plate in a clamping mode.

Through adopting above-mentioned technical scheme, the setting of percentage table and mounting is convenient for measure the distance of nut motion, and then improves clearance measurement's precision, simultaneously, improves nut and ball screw complex stability.

Optionally, the fixing member includes at least one connection lug and at least one fastening bolt, the connection lug is located on the dial indicator, and the fastening bolt penetrates through the connection lug and fastens the mounting plate.

Through adopting above-mentioned technical scheme, the setting of auricle and support tight bolt is connected to the percentage table of being convenient for and the stable connection of mounting panel, and then improves the measuring precision of percentage table.

Optionally, a sliding groove is formed in the mounting plate and axially arranged along the ball screw, the drive plate is embedded into the sliding groove, and the drive plate slides along the sliding groove.

Through adopting above-mentioned technical scheme, the directional motion of drive plate of being convenient for reduces the possibility that the drive plate takes place the skew in the motion process through the setting of spout, and then improves the stability of drive plate drive nut motion.

Optionally, a sliding block is embedded in the sliding groove and located on the dial indicator.

Through adopting above-mentioned technical scheme, the setting of slider is convenient for percentage table and drive plate synchronous slip, and then is convenient for measure the clearance that the nut is located the different positions of ball, improves the clearance measurement accuracy between nut and the ball.

Optionally, the drive board is provided with a plug pin used for being connected with a measuring head of the dial indicator, an embedded groove for embedding the plug pin is formed in the measuring head of the dial indicator, and a jack for inserting the measuring head of the dial indicator and the plug pin is formed in the drive board.

Through adopting above-mentioned technical scheme, the setting of bolt and caulking groove, the gauge head of the percentage table of being convenient for and the being connected of drive plate, and then improve the stability that percentage table gauge head and drive plate are connected, simultaneously, improve the measuring precision of percentage table.

Optionally, the limiting assembly comprises a sleeve and a driving rod, the sleeve is sleeved on the driving rod and is connected with the driving rod and the fixing plate in a sliding mode, one end of the driving rod is connected with the ball screw, and the cross sectional areas of the sleeve and the driving rod are all set to be polygonal.

By adopting the technical scheme, the arrangement of the driving rod is convenient for driving the ball screw to rotate, so that the clearance between different positions where the ball screw is matched with the nut can be conveniently measured, and the precision of clearance measurement is improved; the telescopic setting is convenient for drive ball and rotates, simultaneously, is convenient for carry on spacingly to ball when measuring the clearance, reduces ball pivoted possibility.

Optionally, the base is provided with a plurality of fixing bolts for fixing the base.

Through adopting above-mentioned technical scheme, fixing bolt's setting is convenient for fix the base, and then the measurement in the clearance of being convenient for improves the stability of base.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the designed gap measuring tool for the screw assembly of the adjustable deflation valve of the airplane is convenient for recording numerical values of a starting position and an end position through a fixing device and a driving device, and further convenient for measuring the gap between a nut and a ball screw;

2. the arrangement of the bolt and the caulking groove is convenient for the connection of the measuring head of the dial indicator and the drive plate, so that the connection stability of the measuring head of the dial indicator and the drive plate is improved, and meanwhile, the measuring precision of the dial indicator is improved;

3. the driving rod is arranged, so that the ball screw can be driven to rotate conveniently, the gaps at different positions where the ball screw and the nut are matched can be measured conveniently, and the accuracy of gap measurement is improved; the telescopic setting is convenient for drive ball and rotates, simultaneously, is convenient for carry on spacingly to ball when measuring the clearance, reduces ball pivoted possibility.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a cross-sectional view of an embodiment of the present invention.

Description of reference numerals: 1. a ball screw; 2. a nut; 3. a fixing device; 31. a base; 32. a fixing plate; 33. a limiting component; 331. a sleeve; 332. a drive rod; 4. a drive device; 41. a drive assembly; 411. mounting a plate; 4111. a chute; 412. a drive plate; 4121. a jack; 413. a push rod; 42. a measurement assembly; 421. a dial indicator; 4211. a slider; 4212. caulking grooves; 422. a fixing member; 4221. connecting a lug plate; 4222. tightly abutting against the bolt; 5. a bolt; 6. and (5) fixing the bolt.

Detailed Description

The present invention is described in further detail below with reference to FIGS. 1-2.

The embodiment of the invention discloses a gap measuring tool for a lead screw assembly of an adjustable deflation valve of an airplane. Referring to fig. 1, the gap measuring tool for the screw assembly of the adjustable bleed valve of the airplane comprises a fixing device 3 for fixing a ball screw 1 and a driving device 4 for driving a nut 2 to move; the setting of fixing device 3 is convenient for fix ball 1, and then the drive arrangement 4 of being convenient for drives the nut 2 motion, realizes measuring the clearance between ball 1 and the nut 2.

Referring to fig. 1, the fixing device 3 includes a base 31, two fixing plates 32 located on the base 31, and a limiting component 33 for limiting rotation of the ball screw 1, the two fixing plates 32 are welded on the base 31, the two fixing plates 32 are parallel to each other near one side, two ends of the ball screw 1 are respectively connected with the two fixing plates 32 in a rotating manner, the limiting component 33 includes a sleeve 331 and a driving rod 332, the sleeve 331 is sleeved on the driving rod 332, the sleeve 331 is slidably connected with the driving rod 332 and the fixing plates 32, one end of the driving rod 332 is welded with the ball screw 1, cross-sectional areas of the sleeve 331 and the driving rod 332 are both polygonal, cross-sectional areas of the sleeve 331 and the driving rod 332 are both hexagonal in this embodiment, and the sleeve 331 and the driving rod 332 are disposed, on one hand, rotation of the ball screw 1 during measurement of gaps at different positions of the ball screw 1 is facilitated, on the other hand, reduce ball 1 pivoted possibility when clearance is measured, threaded connection has a plurality of fixing bolt 6 that are used for going on fixing base 31 on base 31, is provided with four fixing bolt 6 in this embodiment, improves the stability that base 31 supported, and then improves the measurement precision in clearance.

Referring to fig. 1 and 2, the driving device 4 includes two sets of driving components 41 for driving the nut 2 to move in different directions and two sets of measuring components 42 for measuring the gap, and each of the driving components 41 and the measuring components 42 are used in cooperation; the driving assembly 41 includes a mounting plate 411, a driving plate 412 and at least one push rod 413, in this embodiment, two push rods 413 are provided, and both the two push rods 413 are axially parallel to the ball screw 1, two opposite sides of the mounting plate 411 are respectively welded to two fixing plates 32, the driving plate 412 is slidably connected to the mounting plate 411, the driving plate 412 is welded to the nut 2, and the driving plate 412 is slidably connected to the ball screw 1, one end of each push rod 413 is welded to the driving plate 412, and the other end of each push rod 413 is slidably connected to the fixing plate 32, and a handle is welded to one end of each push rod 413 extending out of the fixing plate 32, so as to facilitate the driving plate 412 to move, so that the driving plate 412 drives the nut 2 to move, and realize measurement of a gap between the nut 2 and the ball screw 1, a chute 4111 is provided on the mounting plate 411, and the chute 4111 is provided along the axial direction of the ball screw 1, the driving plate 412 is embedded in the chute 4111, and the driving plate 412 slides along the chute 4111, the possibility of deflection during movement of the drive plate 412 is reduced, thereby improving the accuracy of gap measurement.

Referring to fig. 1 and 2, the measuring assembly 42 includes a dial indicator 421 and a fixing member 422 for fixing the position of the dial indicator 421, the dial indicator 421 is connected to the mounting plate 411 in a sliding manner, a sliding block 4211 is embedded in the sliding groove 4111, the sliding block 4211 is located on one side of the dial indicator 421 close to the mounting plate 411, and the sliding block 4211 and the dial indicator 421 are integrally connected, so that the dial indicator 421 and the driving plate 412 can move synchronously, further the gap between different positions of the ball screw 1 can be measured conveniently, and the measuring accuracy of the dial indicator 421 is improved; the measuring head of the dial indicator 421 is clamped with the driving plate 412, the driving plate 412 is inserted with a bolt 5 for connecting with the measuring head of the dial indicator 421, the measuring head of the dial indicator 421 is provided with an embedded groove 4212 for embedding the bolt 5, the driving plate 412 is provided with a jack 4121 for inserting the measuring head of the dial indicator 421 with the bolt 5, the stability of connecting the dial indicator 421 with the driving plate 412 is improved, so as to improve the measuring accuracy of the dial indicator 421, the fixing member 422 includes at least one connecting lug 4221 and at least one tightening bolt 4222, in this embodiment, two connecting lugs 4221 and two tightening bolts 4222 are provided, the two connecting lugs 4221 and the two tightening bolts 4222 are arranged in a one-to-one correspondence manner, the two connecting lugs 4221 are symmetrically arranged about the center line of the dial indicator 421, the connecting lugs 4221 are welded on the dial indicator 421, the tightening bolts 4222 penetrate through the connecting lugs 4221 to be tightly pressed against the mounting plate 411, and the tightening bolts 4222 are in threaded connection with the connecting lugs 4221; due to the fact that the dial indicator 421 is arranged, the gap between the nut 2 and the ball screw 1 can be measured conveniently, and accuracy of gap measurement is improved.

The implementation principle of the gap measuring tool for the screw assembly of the adjustable bleed valve of the airplane in the embodiment of the invention is as follows: when measuring the gap between the nut 2 and the lead screw, firstly, the sleeve 331 is sleeved on the driving rod 332, then the sleeve 331 is pushed to enable the sleeve 331 to be clamped with the fixing plate 32, then one dial indicator 421 is fixed on the installation, then the handle far away from one dial indicator 421 is pushed to enable the handle to drive the push rod 413 to move, the push rod 413 pushes the driving plate 412 to move along the chute 4111, the driving plate 412 drives the nut 2 to move, the nut 2 pushes the other driving plate 412 to move, the driving plate 412 pushes the measuring head of one dial indicator 421 to move, so that the nut 2 moves to the initial position, the initial position is recorded by reading the value on one dial indicator 421, then the abutting bolt 4222 of one dial indicator 421 is detached, meanwhile, the other dial indicator 421 is fixed, then the other handle is pushed, the nut 2 is pushed by the handle to move reversely, so that the nut 2 moves to the terminal point, and the value of the terminal point is recorded by the other dial indicator 421, the measurement of the clearance between the nut 2 and the lead screw is completed.

When the clearance of ball 1 different positions needs to be measured, break away from sleeve 331 and fixed plate 32, then rotate sleeve 331, sleeve 331 drives actuating lever 332 and rotates, and actuating lever 332 drives ball 1 and rotates for nut 2 moves to another position, then measures the clearance of nut 2 and ball 1.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.