Pin pulling force detection device of bullet locking machine

Abstract

The utility model discloses a pin pulling force detection device for a bullet locking machine, and relates to the field of mechanical part testing. The pin pulling force detection device for the bullet locking machine comprises a detection box, a tension meter used for being connected with pin pulling detection tension on the bullet locking machine, a driving mechanism connected with the detection box and the tension meter and a clamp connected to the detection box, and the driving mechanism is used for driving the tension meter to move in the linear direction; the clamp is used for clamping or loosening the bullet locking machine located on the movement track of the tension meter and can drive the clamped tension meter to ascend and descend and rotate between horizontal arrangement and vertical arrangement. The pin pulling force detection device of the bullet locking machine can rapidly, accurately and stably measure the axial and radial pulling forces of the pin pulling on the bullet locking machine.

Description

Technical Field

[0001] The present application relates to the field of mechanical component testing, and in particular to a device for detecting the pin pulling force of a locking mechanism. Background Art

[0002] The bolt lock is an important component of the aircraft ejection seat. The bolt lock needs to be inspected during regular inspections to ensure that the mechanical firing function of the ejection seat is normal. The tensile test of the bolt lock pin is a component directly related to the mechanical firing function of the ejection seat, and the detection of its pin pull force is very important.

[0003] Currently, the detection method for the pin extraction force of the ejection seat locking mechanism is inefficient and inaccurate. The pin extraction operation can only be performed using a handheld pulling device. The position and speed of the pin extraction are unstable, making it difficult to accurately and comprehensively reflect whether the pin extraction performance meets the requirements. Utility Model Content

[0004] The purpose of the present application is to provide a device for detecting the pin pulling force of a locking mechanism, which can quickly, accurately and stably measure the axial and radial tension of the pin pulling force on the locking mechanism.

[0005] This application is implemented as follows:

[0006] The present application provides a device for detecting the pin pulling force of a locking mechanism, comprising:

[0007] Testing box;

[0008] Tensile force gauge, used to connect the pull pin on the locking mechanism to test the tension;

[0009] A driving mechanism is connected to the detection box and the dynamometer, and is used to drive the dynamometer to move in a straight line.

[0010] The fixture is connected to the test box. The fixture is used to clamp or release the locking machine located on the moving track of the dynamometer, and can drive the clamped dynamometer to rise and fall and rotate between horizontal and vertical arrangements.

[0011] In some optional embodiments, the driving mechanism includes an electric slide connected to the detection box, and the slider of the electric slide is connected to the dynamometer.

[0012] In some optional embodiments, the detection box is connected to a protective cover, which is used to block the slider from moving in a straight line in a direction away from the fixture.

[0013] In some optional embodiments, an elastic buffer seat is provided at one end of the protective cover facing the slider.

[0014] In some optional embodiments, the fixture includes a height guide rail connected to the detection box, a height adjustment seat slidably connected to the height guide rail, a height adjustment mechanism for driving the height adjustment seat to move along the height guide rail, a rotating shaft connected to the height adjustment seat, a rotating seat rotatable 90 degrees on the rotating shaft, a fixed clamping block connected to the rotating seat, a movable clamping block movable in a direction close to or away from the fixed clamping block, and a clamping mechanism for driving the movable clamping block to move toward or away from the fixed clamping block, the movable clamping block clamps or releases the locking machine when moving toward or away from the fixed clamping block, and when the rotating seat rotates 90 degrees around the rotating shaft, the locking machine clamped by the movable clamping block and the fixed clamping block rotates between horizontal and vertical arrangements.

[0015] In some optional embodiments, the height adjustment mechanism includes a height adjustment block connected to the height adjustment seat and a height adjustment screw threaded through and connected to the height adjustment block. When the height adjustment screw rotates, it drives the height adjustment block to move along its axial and height directions.

[0016] In some optional embodiments, the clamping mechanism includes at least one guide rod connected to the fixed clamping block, a clamping base plate connected to the guide rod, and a clamping screw that passes through and connects the clamping base plate and the movable clamping block through a thread. When the clamping screw rotates, it drives the movable clamping block to move along its axial direction and towards or away from the fixed clamping block.

[0017] In some optional embodiments, the rotating seat is connected to at least one locking screw, and when the locking screw rotates, it moves axially to press or stop pressing the height adjustment seat.

[0018] In some optional embodiments, the detection box is provided with at least one pull handle.

[0019] In some optional embodiments, the detection box is provided with a display screen electrically connected to the dynamometer.

[0020] The beneficial effects of the present application are as follows: the device for detecting the pin extraction force of a bolt mechanism provided by the present application comprises a detection box, a dynamometer for connecting to the bolt mechanism to detect the pin extraction force, a drive mechanism connected to the detection box and the dynamometer, and a clamp connected to the detection box, wherein the drive mechanism is used to drive the dynamometer to move in a linear direction; the clamp is used to clamp or release the bolt mechanism located on the dynamometer's moving track, and can drive the clamped dynamometer to move up and down and rotate between horizontal and vertical arrangements. The device for detecting the pin extraction force of a bolt mechanism provided by the present application can quickly, accurately, and stably measure the axial and radial tension of the pin extraction force on the bolt mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a structural diagram of the clamp in the first use state of the device for detecting the pin extraction force of a locking mechanism provided by an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of the connection between the detection box, the dynamometer and the drive mechanism in the pin extraction force detection device of the bolt lock provided in an embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of the connection between the dynamometer and the drive mechanism in the pin extraction force detection device of the bolt locking mechanism provided in an embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of the clamp in the pin-pulling force detection device for a locking mechanism provided by an embodiment of the present application when it is in a second use state;

[0026] Figure 5 This is a structural schematic diagram of the connection between the detection box, the dynamometer and the drive mechanism in another embodiment of the present application provided in the pin pulling force detection device of the locking mechanism.

[0027] In the figure: 100, detection box; 110, dynamometer; 120, driving mechanism; 130, electric slide; 140, slider; 150, protective cover; 160, elastic buffer seat; 170, motor; 200, clamp; 210, height guide rail; 220, height adjustment seat; 230, rotating shaft; 240, rotating seat; 250, fixed clamping block; 260, movable clamping block; 270, height adjustment block; 280, height adjustment screw; 290, guide rod; 300, clamping seat plate; 310, clamping screw; 320, locking screw; 330, pull rod handle; 340, display screen; 350, mounting slot; 360, height adjustment handle; 370, clamping handle; 380, rotating slot; 400, locking mechanism; 410, pull pin. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0033] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] The features and performance of the pin pulling force detection device of the locking mechanism of the present application are further described in detail below in conjunction with the embodiments.

[0036] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an embodiment of the present application provides a device for detecting the pulling-out force of a locking mechanism, which includes a detection box 100, a dynamometer 110 for connecting to a pulling-out pin 410 on a locking mechanism 400 to detect tension, a driving mechanism 120 respectively connected to the detection box 100 and the dynamometer 110, and a clamp 200 detachably connected to one end of the detection box 100, wherein the driving mechanism 120 is used to drive the dynamometer 110 to move in a straight line toward or away from the clamp 200; the clamp 200 is used to clamp or release the locking mechanism 400 located on the moving track of the dynamometer 110, and can drive the clamped dynamometer 110 to rise and fall and rotate between a horizontal arrangement and a vertical arrangement.

[0037] Among them, the top surface of the testing box 100 is provided with a mounting groove 350, the driving mechanism 120 includes an electric slide 130 arranged in the mounting groove 350, the dynamometer 110 is arranged horizontally and the bottom is connected to the slider 140 of the electric slide 130, and the top surface of the testing box 100 is also connected to a protective cover 150 located above the motor 170 of the electric slide 130. The protective cover 150 is used to block the slider 140 from moving in a straight line direction away from the fixture 200. A U-shaped pull rod handle 330 is provided on the top surface of the testing box 100, and the two ends of the pull rod handle 330 are respectively connected to the top surface of the testing box 100. The dynamometer 110 is a digital dynamometer, and the top surface of the testing box 100 is also provided with a display screen 340 electrically connected to the dynamometer 110.

[0038] The fixture 200 includes a height guide rail 210 extending in the height direction, a height adjustment seat 220 slidably connected to the height guide rail 210, a height adjustment mechanism for driving the height adjustment seat 220 to move along the height guide rail 210, a rotating shaft 230 connected to the height adjustment seat 220, a rotating seat 240 rotatable 90 degrees and sleeved on the rotating shaft 230, a fixed clamping block 250 connected to the rotating seat 240, and a movable clamping block 250 movable in a direction close to or away from the fixed clamping block 250. 60 and a clamping mechanism for driving the movable clamping block 260 to move toward or away from the fixed clamping block 250. When the movable clamping block 260 moves toward or away from the fixed clamping block 250, it clamps or releases the bullet-locking machine 400. When the rotating seat 240 rotates 90 degrees around the rotating shaft 230, the bullet-locking machine 400 clamped by the movable clamping block 260 and the fixed clamping block 250 rotates between a horizontal arrangement and a vertical arrangement. The height guide rail 210 is detachably connected to one end of the detection box 100 by bolts.

[0039] The height adjustment mechanism includes a height adjustment block 270 connected to the height adjustment seat 220 and a height adjustment screw 280 that passes through and is connected to the height adjustment block 270 through a thread. The height adjustment screw 280 is connected to a height adjustment handle 360. When the height adjustment screw 280 rotates, it drives the height adjustment block 270 to move along its axial and height directions. The clamping mechanism includes two guide rods 290 connected to the fixed clamping block 250, a clamping seat plate 300 connected to the guide rod 290, and a height adjustment screw 280 that passes through and is connected to the clamping seat plate through a thread. 300 and the clamping screw 310 of the movable clamping block 260, the clamping screw 310 is connected to the clamping handle 370, and when the clamping screw 310 rotates, it drives the movable clamping block 260 to move along its axial direction and towards or away from the fixed clamping block 250; both ends of the rotating seat 240 are respectively provided with an arc-shaped rotating groove 380, and the two ends of the rotating seat 240 are respectively connected by threaded locking screws 320 passing through the two rotating grooves 380, and when the locking screw 320 rotates, it moves axially to press or stop pressing the height adjustment seat 220.

[0040] The working principle of the locking mechanism pin pulling force detection device provided in the embodiment of the present application is that when the user needs to perform an axial pin pulling force detection on the pulling pin 410 on the locking mechanism 400, the user first rotates the two locking screws 320 so that the two locking screws 320 move axially and stop pressing the height adjustment seat 220 to unlock the rotating seat 240 and the height adjustment seat 220. At this time, the rotating seat 240 can be pushed to rotate 90 degrees around the rotating shaft 230, so that the fixed clamping block 250 and the movable clamping block 260 connected to the rotating seat 240 rotate 90 degrees to the left. The height adjustment screw 280 is rotated and the height adjustment block 270 is driven to move along its axial direction by the threaded sleeve when the height adjustment screw 280 rotates, so that the height adjustment seat 220 connected to the height adjustment block 270 is lifted and lowered to a preset height along the height guide rail 210, and the bullet-locking machine 400 to be tested is placed on the top surface of the fixed clamping block 250. At this time, the bullet-locking machine 400 placed on the top surface of the fixed clamping block 250 is aligned with the horizontal layout provided on the top surface of the detection box 100. The tension gauge 110 is coaxially arranged and at the same height. At the same time, the pull pin 410 connected to the locking mechanism 400 is arranged toward the tension gauge 110. The two locking screws 320 are rotated in the opposite direction to move the two locking screws 320 axially and press the height adjustment seat 220 again to lock the rotating seat 240 and the height adjustment seat 220. The clamping handle 370 can be rotated to drive the clamping screw 310 to rotate. When the clamping screw 310 rotates, it drives the movable clamping block 260 along its axial direction toward the fixed clamping block 250. The movable clamping block 260 and the fixed clamping block 250 clamp the fixed bullet-locking mechanism 400, and the motor 170 of the driving mechanism 120 is controlled to drive the slider 140 to move in a straight line toward the bullet-locking mechanism 400 clamped by the movable clamping block 260 and the fixed clamping block 250 to a preset position. The detection hook of the dynamometer 110 is connected to the pulling pin 410 connected to the bullet-locking mechanism 400, and the motor 170 is controlled to drive the slider 140 to move in a straight line toward the direction away from the bullet-locking mechanism 400 to stretch the pulling pin 410 to perform axial pulling pin force detection;

[0041] When the user needs to test the pulling pin 410 on the locking mechanism 400 for radial pulling pin force, rotate the two locking screws 320 so that the two locking screws 320 move axially and stop pressing the height adjustment seat 220 to unlock the rotating seat 240 and the height adjustment seat 220, and push the rotating seat 240 to rotate 90 degrees in the opposite direction around the rotating shaft 230, so that the fixed clamping block 250 and the movable clamping block 260 connected to the rotating seat 240 rotate 90 degrees to a horizontal interval arrangement, and then rotate the height adjustment handle 360 ​​to drive the height adjustment screw 280 to rotate. When the height adjustment screw 280 rotates, the height adjustment block 270 mounted thereon through the threaded sleeve moves axially, so that the height adjustment seat 220 connected to the height adjustment block 270 is raised and lowered to a preset height along the height guide rail 210, and the locking mechanism 400 to be tested is placed on the side of the fixed clamping block 250 facing the movable clamping block 260. At this time, the locking mechanism 400 placed on the side of the fixed clamping block 250 is arranged vertically and the pulling pin 250 connected to the top is The pin 410 is at the same height as the dynamometer 110. The two locking screws 320 are rotated in the opposite direction to move the two locking screws 320 axially and press the height adjustment seat 220 again to lock the rotating seat 240 and the height adjustment seat 220. The clamping handle 370 is rotated to drive the clamping screw 310 to rotate. When the clamping screw 310 rotates, it drives the movable clamping block 260 to move along its axial direction toward the fixed clamping block 250, so that the movable clamping block 260 and the fixed clamping block 250 are locked. Clamp and fix the vertically arranged locking machine 400, control the motor 170 of the driving mechanism 120 to drive the slider 140 to move to a preset position in a straight line direction toward the locking machine 400 clamped by the movable clamp 260 and the fixed clamp 250, connect the detection hook of the dynamometer 110 to the pulling pin 410 connected to the locking machine 400, and control the motor 170 to drive the slider 140 to move in a straight line direction toward away from the locking machine 400 to stretch the pulling pin 410 for radial pulling force detection.

[0042] The top surface of the testing box 100 is equipped with a U-shaped handle 330, which allows the user to easily lift and move the testing box 100 by grasping the handle 330. The top surface of the testing box 100 is also equipped with a display screen 340 electrically connected to the dynamometer 110. The display screen 340 can display the reimbursement force value detected by the dynamometer 110 in real time, making it convenient for the user to view the test data. The top surface of the testing box 100 is also connected to a protective cover 150 located above the motor 170 of the electric slide 130, which can be used to limit the position of the slider 140 of the electric slide 130.

[0043] In other optional embodiments, such as Figure 5 As shown, an elastic buffer seat 160 is provided at one end of the protective cover 150 facing the slider 140 , and the elastic buffer seat 160 can be used to elastically buffer and limit the position of the slider 140 of the electric slide 130 to avoid damage to the slider 140 .

[0044] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A device for detecting the pin pulling force of a locking mechanism, characterized in that: It includes: Testing box; Tensile force gauge, used to connect the pull pin on the locking mechanism to test the tension; A driving mechanism, connected to the detection box and the dynamometer, respectively, and configured to drive the dynamometer to move in a straight line; A clamp is connected to the detection box, and is used to clamp or release the locking mechanism located on the moving track of the dynamometer, and can drive the clamped dynamometer to rise and fall and rotate between horizontal and vertical arrangements.

2. The device for detecting the pin pulling force of a locking mechanism according to claim 1, characterized in that: The driving mechanism includes an electric slide connected to the detection box, and a slider of the electric slide is connected to the dynamometer.

3. The device for detecting the pin pulling force of a locking mechanism according to claim 2, characterized in that: The detection box is connected to a protective cover, and the protective cover is used to block the slider from moving along the straight line in a direction away from the clamp.

4. The device for detecting the pulling force of a bolt lock according to claim 3, characterized in that: An elastic buffer seat is provided on one end of the protective cover facing the sliding block.

5. The device for detecting the pulling force of a bolt lock according to claim 1, characterized in that: The clamp includes a height guide rail connected to the detection box, a height adjustment seat slidably connected to the height guide rail, a height adjustment mechanism for driving the height adjustment seat to move along the height guide rail, a rotating shaft connected to the height adjustment seat, a rotating seat rotatable 90 degrees on the rotating shaft, a fixed clamping block connected to the rotating seat, a movable clamping block movable in a direction approaching or away from the fixed clamping block, and a clamping mechanism for driving the movable clamping block to move toward or away from the fixed clamping block, the movable clamping block clamps or releases the bullet-locking machine when moving toward or away from the fixed clamping block, and the rotating seat rotates 90 degrees around the rotating shaft to rotate the bullet-locking machine clamped by the movable clamping block and the fixed clamping block between horizontal and vertical arrangements.

6. The device for detecting the pin pulling force of a locking mechanism according to claim 5, characterized in that: The height adjustment mechanism includes a height adjustment block connected to the height adjustment seat and a height adjustment screw threaded through and connected to the height adjustment block. When the height adjustment screw rotates, it drives the height adjustment block to move along its axial and height directions.

7. The device for detecting the pulling force of a bolt lock according to claim 5, characterized in that: The clamping mechanism includes at least one guide rod connected to the fixed clamping block, a clamping base plate connected to the guide rod, and a clamping screw that passes through and connects the clamping base plate and the movable clamping block through a thread. When the clamping screw rotates, it drives the movable clamping block to move along its axial direction and towards or away from the fixed clamping block.

8. The device for detecting the pin pulling force of a locking mechanism according to claim 5, characterized in that: The rotating seat is connected to at least one locking screw, and when the locking screw rotates, it moves axially to press or stop pressing the height adjustment seat.

9. The device for detecting the pulling force of a bolt lock according to claim 1, characterized in that: The detection box is provided with at least one pull rod handle.

10. The device for detecting the pulling force of a bolt lock according to claim 1, characterized in that: The detection box is provided with a display screen electrically connected to the dynamometer.

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