CN110887657B

CN110887657B - Inhale iron swing arm pulling force detection device

Info

Publication number: CN110887657B
Application number: CN201911363383.8A
Authority: CN
Inventors: 彭晓虹; 曹丽忠; 卫明; 陶煜; 陆国平
Original assignee: Changshu Textile Machinery Works Co Ltd
Current assignee: Changshu Textile Machinery Works Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-03-12
Anticipated expiration: 2039-12-26
Also published as: CN110887657A

Abstract

A device for detecting the tension of a swing arm of a magnet belongs to the technical field of special testing devices for components of textile machinery. Comprises a test bench; the swing arm is hanging support and pneumatic swing arm temporarily and is dragging the mechanism, the swing arm is hanging the support temporarily and is fixed on the testboard, the swing arm is hanging the right side upper portion of support temporarily and is being fixed with swing arm palm portion and hanging post and the spacing post of swing arm palm portion cavity temporarily, the spacing post of swing arm palm portion cavity corresponding to the upper portion of hanging the post temporarily of swing arm palm portion and the spacing post of swing arm palm portion cavity between construct for swing arm shaft hole pore wall and step down the chamber, the pneumatic type swing arm is dragged and is drawn the mechanism and establish on the testboard and corresponding to the right side that the support was hanging temporarily to the swing arm, the pneumatic type swing arm is dragged the mechanism. The test effect is guaranteed; the overall structure is simple, the clamping time is favorably shortened, the detection efficiency is improved, and the operation intensity of an operator and the clamping operation requirement can be obviously reduced; the test result is prevented from generating deviation; the cost is reduced.

Description

Inhale iron swing arm pulling force detection device

Technical Field

The invention belongs to the technical field of special testing devices for components of a spinning machine, and particularly relates to a device for detecting tension of a swing arm of a magnet.

Background

The above-mentioned iron-sucking swing arm is an important part in the structural system of signal device on the dobby, and the dobby is a loom shedding component matched with loom for converting fabric pattern signal into shedding action and driving the heald frame of loom to make up-and-down shedding movement. The applicant is not repeated here as the specific function of the swing arm of the iron-absorbing is fully understood by reading the "rotary dobby for looms" recommended in FR-2540524, the "rotary dobby described in CN1057352C and looms equipped with such dobbies", and the "rotary dobby shedding mechanism" provided in CN 102400257B.

Because the iron-attracting swing arm needs a gap and applies acting force to the signal swing arm frequently, the main working part at one end of the signal swing arm acts on the eccentric disc and the clutch pawl, and the requirement on the stress condition of the iron-attracting swing arm is very strict. In order to ensure that the iron absorption swing arm has the stress strength required by the process, a manufacturer needs to detect the stress condition (also called as "test", the same applies hereinafter). However, since the swing arm of the magnet is very special and flat in shape and irregular in shape, it is extremely troublesome to test it.

The prior art detects the tension of the iron-absorbing swing arm in the following way: the two ends of the iron absorption swing arm are clamped by a special clamp, if the iron absorption swing arm is longitudinally arranged, the upper end and the lower end of the iron absorption swing arm are clamped, and then a material testing machine, namely a tensile testing machine, is used for performing tensile test until the material testing machine is broken, and the numerical value displayed by the testing machine is read. Although the maximum tension value that the swing arm of this kind of detection mode can survey the magnet and can bear, nevertheless have following technical problem: firstly, the clamping mode is inconsistent with the actual stress mode of the iron absorption swing arm, so that the test effect is difficult to guarantee; secondly, the iron absorption swing arm is fixed by means of a special clamp and then is supplied to a tensile testing machine for testing, so that on one hand, the efficiency is low, on the other hand, the operation intensity of an operator is high, and the operation requirement on the operator is high; thirdly, the clamping positions of the iron absorption swing arms cannot be objectively consistent when clamping is carried out before each test, so that the test result is deviated; fourthly, because the test mode belongs to destructive test, after the test is accomplished, the suction arm swing arm can only be scrapped, both caused the wasting of resources, was unfavorable for the cost control of product simultaneously.

As known in the industry, for parts with strict stress requirements, a tensile test is an extremely important ring in the whole part machining process, and the adoption of different detection modes and different clamping modes can influence the overall test result of the part, and is important for judging whether one or even one batch of parts is qualified or not. The problem of how to accurately, efficiently and conveniently detect whether the tension of the iron-absorbing swing arm is qualified or not has been troubled in the industry for a long time and is expected to be solved, but no recognizable technical suggestions are found in the Chinese and foreign patent documents disclosed so far, and for this reason, the applicant makes an active and beneficial design and proves that the iron-absorbing swing arm is feasible through computer simulation tests under the condition of taking security measures.

Disclosure of Invention

The invention aims to provide the iron absorption swing arm tension detection device which is beneficial to enabling a clamping mode to be consistent with an actual stress mode so as to ensure a test effect, simplifying and shortening a clamping process so as to improve detection efficiency, remarkably reducing the operation intensity of an operator and the clamping operation requirement, fully keeping the clamping positions consistent so as to avoid deviation of a test result, and conveniently abandoning destructive testing so as to avoid resource waste and prevent the product cost from not being improved.

The invention aims to complete the task, and the device for detecting the tension of the swing arm of the magnet comprises a test board; the swing arm is hung the support temporarily and is dragged and draw the mechanism with a pneumatic swing arm, and the swing arm is hung the support temporarily and is fixed on the testboard, is fixed with a swing arm palm portion and is hanging post and the spacing post of a swing arm palm portion cavity temporarily on the right side upper portion that the support is hung temporarily in this swing arm, and the spacing post of this swing arm palm portion cavity is corresponding to the upper portion that the post is hung temporarily to swing arm palm portion and the space between post and the spacing post of swing arm palm portion cavity is for swing arm shaft hole wall chamber of stepping down, and pneumatic type swing arm is dragged and is drawn the mechanism and set up on the testboard and corresponding to the right side that the support is hung temporarily to the swing arm, this pneumatic type swing arm is dragged and is drawn the mechanism and be connected with product production device through.

In a particular embodiment of the invention, the test bench is supported on the floor of the test site by test bench support feet.

In another specific embodiment of the invention, a pressure control valve is arranged on the gas production device connecting pipeline, and a pressure display connected with the pressure control valve is arranged on the test bench.

In another specific embodiment of the present invention, a support fixing plate is formed at the bottom of the swing arm temporarily hanging the support, and the support fixing plate is fixed to the test table by a support fixing plate bolt.

In another specific embodiment of the present invention, the pneumatic swing arm pulling mechanism includes a cylinder fixing seat, a cylinder column connecting screw, and a pulling rod, the cylinder fixing seat is fixed on one downward side of the test table, the cylinder is fixed on the cylinder fixing seat and is connected with a gas generating device through the gas generating device connecting pipeline in a use state, the cylinder column of the cylinder extends to the upper side of the test table from the lower direction of the test table, the lower end of the cylinder column connecting screw is connected with the end of the cylinder column in an adjusting manner, the lower end of the pulling rod is hinged with the upper end of the cylinder column connecting screw, and the upper end of the pulling rod forms a swing arm abdicating cavity and is provided with a swing arm limiting pin at the upper end of the pulling rod; wherein, a cylinder column abdicating hole is arranged on the test board; the cylinder post connecting screw and the pulling rod correspond to the right side of the swing arm temporarily hanging the bracket.

In yet another embodiment of the present invention, an anti-interference slope is formed on each of the front and rear sides of the upper portion of the swing arm temporary hanging bracket.

In a more specific embodiment of the present invention, a pedal-type control switch for controlling the operation of the cylinder is disposed on the gas generating device connecting line connected to the gas generating device.

In a further specific embodiment of the present invention, the gas generating device is an air compressor or an air pump.

In a still more specific embodiment of the present invention, a cylinder-post-end internal thread is formed at the end of the cylinder post, and a cylinder-post-connecting-screw external thread is formed at the lower end of the cylinder-post connecting screw, the cylinder-post-connecting-screw external thread being threadedly connected to the cylinder-post-end internal thread, and an adjusting nut is provided between the lower end of the cylinder-post connecting screw and the end of the cylinder post, the adjusting nut being threadedly fixed to the cylinder-post-connecting-screw external thread.

In yet another embodiment of the present invention, a pull-rod hinge lug is formed at an upper end of the cylinder-column connection screw, and a hinge lug groove is formed at a lower end of the pull-rod, the hinge lug groove being engaged with the pull-rod hinge lug and the lower end of the pull-rod being hinged to the pull-rod hinge lug by a pull-rod hinge shaft.

The technical scheme provided by the invention has the technical effects that: because the iron absorption swing arm can be arranged on the swing arm palm part to temporarily hang the column and is limited by the swing arm palm part cavity limiting column during detection, and the pneumatic swing arm pulling mechanism pulls the arm part of the iron absorption swing arm, the clamping mode of the iron absorption swing arm tends to be consistent with the actual stress mode, and the test effect is ensured; the whole structure is simple, so that the detection efficiency is improved by shortening the clamping time, and the operation intensity of an operator and the clamping operation requirement can be obviously reduced; the clamping positions of each iron absorbing swing arm can be kept consistent, so that the test result is prevented from deviating; because the pulling force of the pneumatic swing arm pulling mechanism can be set according to requirements, the method is convenient for abandoning the destructive test with blindness in the prior art, thereby avoiding resource waste and avoiding unnecessary increase of product cost.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention in a state of testing the swing arm of the iron attraction.

Detailed Description

In order to clearly understand the technical spirit and the advantages of the present invention, the applicant below describes in detail by way of example, but the description of the example is not intended to limit the technical scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in material, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are exemplified by the position state of fig. 1, and thus, it should not be understood as a particular limitation to the technical solution provided by the present invention.

Referring to fig. 1, a testing table 1 is shown; the swing arm is temporarily hung with a support 2 and a pneumatic swing arm pulling mechanism 3, the swing arm is temporarily hung with the support 2 and fixed on the test board 1, the upper part of the right side of the swing arm is temporarily hung with the support 2, a swing arm palm temporarily hung with a column 21 and a swing arm palm cavity limiting column 22 are fixed at the rear part of the swing arm, the swing arm palm cavity limiting column 22 corresponds to the upper part of the swing arm palm temporarily hung with the column 21, and the space between the swing arm palm temporarily hung with the column 21 and the swing arm palm cavity limiting column 22 is a swing arm shaft hole wall yielding cavity 23, the pneumatic swing arm pulling mechanism 3 is arranged on the test board 1 and corresponds to the right side of the swing arm temporarily hung with the support 2, and the pneumatic swing arm pulling mechanism 3 is connected with a gas production device through a gas production device connecting pipeline in a use state.

As shown in fig. 1, the swing arm palm cavity limiting column 22 substantially corresponds to the front upper side of the swing arm palm temporary hanging column 21, i.e. the two keep a certain inclination relation. This is designed in a manner of tailoring the suit in compliance with the structure of the swing arm 6 of the iron-attracting type shown in fig. 1. As shown in fig. 1, the front end of the iron-attracting swing arm 6 is defined as an iron-attracting swing arm palm portion 61, a swing arm shaft hole 611 is formed in the iron-attracting swing arm palm portion 61, in a use state, the swing arm shaft hole 611 is used for mounting the iron-attracting swing arm 6 on an iron-attracting swing arm shaft (belonging to the prior art), an iron-attracting swing arm palm portion cavity 612 is formed on the upper portion of the iron-attracting swing arm palm portion 61, a region between the iron-attracting swing arm palm portion cavity 612 and the swing arm shaft hole 611 is a swing arm shaft hole wall and corresponds to the swing arm shaft hole wall abdicating cavity 23 in detection, the swing arm shaft hole 611 is sleeved on the swing arm palm portion temporary hanging column 21 in detection, and the iron-attracting swing arm palm portion cavity palm portion 61 is defined by the swing arm palm portion cavity limiting column 22 at a position corresponding to the iron-attracting swing arm palm portion. The rear end of the iron-attracting swing arm 6 is formed as an iron-attracting swing arm 62, and a swing arm hanging leg 621 and a hanging leg groove 622 are formed at the end of the iron-attracting swing arm 62. The swing arm hanging leg 621 is a weak portion of the magnet swing arm 6, and is a target of detection.

Continuing with fig. 1, the test bench 1 described above is supported in an empty state on the floor of the test site by means of the test bench support feet 11.

A pressure control valve is arranged on the gas production device connecting pipeline, and a pressure display 4 connected with the pressure control valve is arranged on the test bench 1 and preferably positioned at the corner of the test bench 1.

A support fixing plate 24 is formed at the bottom of the swing arm temporarily hanging the support 2, and the support fixing plate 24 is fixed to the test table 1 by a support fixing plate bolt 241.

Continuing to refer to fig. 1, the pneumatic swing arm pulling mechanism 3 includes a cylinder fixing seat 31, a cylinder 32, a cylinder column connecting screw 33 and a pulling rod 34, the cylinder fixing seat 31 is fixed on the downward side of the test table 1 through a cylinder fixing seat bolt 311, the cylinder 32 is fixed on the cylinder fixing seat 31 and is connected with a gas generating device through the gas generating device connecting pipeline in a use state, the cylinder column 321 of the cylinder 32 extends to the upper side of the test table 1 from the lower direction of the test table 1, the lower end of the cylinder column connecting screw 33 is connected with the end of the cylinder column 321 in an adjusting manner, the lower end of the pulling rod 34 is hinged with the upper end of the cylinder column connecting screw 33, and the upper end of the pulling rod 34 forms a swing arm abdicating cavity 341 and the upper end of the pulling rod 34 is provided with a swing arm limiting pin 342; wherein, a cylinder column abdicating hole 12 is opened on the test platform 1, and the cylinder column 321 extends to the upper part of the test platform 1 through the cylinder column abdicating hole 12; the cylinder post connecting screw 33 and the drag link 34 temporarily hang the right side of the frame 2 corresponding to the swing arm.

As shown in fig. 1, an interference preventing slope 25 is formed on each of the front and rear sides of the upper portion of the swing arm temporary hanging bracket 2, and due to the presence of the interference preventing slope 25, that is, due to the presence of the notch, an operator can easily clamp the iron-absorbing swing arm 6, thereby avoiding interference with the clamping operation.

Preferably, a pedal control switch 5 for controlling the operation of the cylinder 32 is arranged on a gas generating device connecting pipeline connected with the gas generating device, and specifically comprises: the foot-operated control switch 5 is connected with a control valve arranged on a connecting pipeline of the gas production device.

In the embodiment, the gas generating device is an air compressor, but an air pump may also be used.

Continuing to refer to fig. 1, a cylinder post terminal internal thread 3211 is formed at the end of the cylinder post 321, a cylinder post connecting screw external thread 331 is formed at the lower end of the cylinder post connecting screw 33, the cylinder post connecting screw external thread 331 is screwed with the cylinder post terminal internal thread 3211, and an adjusting nut 35 is disposed between the lower end of the cylinder post connecting screw 33 and the end of the cylinder post 321, and the adjusting nut 35 is screwed with the cylinder post connecting screw external thread 331. The cylinder post connecting screw 33 can be adjusted by loosening the adjusting nut 35, so that the upper and lower positions of the cylinder post connecting screw 33 and the pull rod 34 can be changed as required, and the adjusting nut 35 is screwed after the adjustment is completed.

As shown in fig. 1, a pull rod hinge lug 332 is formed at an upper end of the cylinder rod connecting screw 33, and a hinge lug groove 343 is formed at a lower end of the pull rod 34, the hinge lug groove 343 being engaged with the pull rod hinge lug 332 and the lower end of the pull rod 34 being hinged to the pull rod hinge lug 332 by a pull rod hinge shaft 344.

In practical use, the magnitude of the pulling force acting on the magnet swing arm 6 is adjusted by the pressure of the compressed air of the air cylinder 32, and a correct pulling force value or pulling force data is determined. Specifically, after the pressure of the compressed air in the air cylinder 32 is determined, the pressure value is followed every time the detection is performed, and when the pressure value or the tension value is reached, the swing arm hitching leg 621, which is the weak portion of the magnet swing arm 6, is not broken, the swing arm hitching leg may be determined to be qualified.

Referring to fig. 2 and fig. 1, a tester inserts the swing arm 62 of the iron-sucking swing arm to be tested into the swing arm abdicating cavity 341, and the swing arm shaft hole 611 of the iron-sucking swing arm 6 is sleeved on the swing arm palm temporary hanging post 21, at this time, the swing arm limiting pin 342 corresponds to the hitching groove 622, and the swing arm palm concave cavity limiting post 22 contacts with the iron-sucking swing arm palm concave cavity 612, so as to complete the quick clamping, and the posture of the iron-sucking swing arm 6 shown in fig. 1 and fig. 2 is completely consistent with the posture or inclination angle in actual use. Then, the inspector steps on the pedal control switch 5, the cylinder 32 enters a working state, the cylinder post 321 moves downwards to drive the cylinder post connecting screw 33 and the pull rod 34 to correspondingly move downwards, at this time, the swing arm limiting pin 342 generates an acting force on the swing arm hitching leg 621, when the pressure of the cylinder 32 reaches a set value, the swing arm hitching leg is automatically stopped, the cylinder post 321 does not move downwards, and simultaneously, the set value, namely, the pressure value is displayed on the pressure display 4. In the foregoing situation, as long as the swing arm hitching leg 621 of the iron absorption swing arm portion of the iron absorption swing arm 6 does not break (including cracks), it indicates that the iron absorption swing arm 6 is qualified and can be qualified as the acting force actually born in the service process.

In summary, in the technical solution provided by the present invention, the tension force that can be borne by the swing arm hitching leg 621 of the iron absorption swing arm 6, namely the tension force required by the process, can be determined by the set pressure of the compressed air, so that the shortcomings in the prior art are overcome, the invention task is successfully completed, and the technical effects mentioned in the above technical effect column by the applicant are faithfully realized.

Claims

1. A device for detecting the tension of a swing arm of a magnet is characterized by comprising a test board (1); a swing arm temporary hanging bracket (2) and a pneumatic swing arm pulling mechanism (3), wherein the swing arm temporary hanging bracket (2) is fixed on the test board (1), a swing arm palm temporary hanging column (21) and a swing arm palm concave cavity limiting column (22) are fixed on the upper part of the right side of the swing arm temporary hanging bracket (2), the swing arm palm part concave cavity limiting column (22) corresponds to the upper part of the swing arm palm part temporary hanging column (21), the space between the swing arm palm part temporary hanging column (21) and the swing arm palm part concave cavity limiting column (22) is formed into a swing arm shaft hole wall abdicating cavity (23), a pneumatic swing arm pulling mechanism (3) is arranged on the test bench (1) and corresponds to the right side of the swing arm temporary hanging support (2), the pneumatic swing arm pulling mechanism (3) is connected with a gas production device through a gas production device connecting pipeline in a use state.

2. The device for detecting the tension of the swing arm of the iron absorption machine according to claim 1, wherein the test bench (1) is supported on a terrace of a test site through a test bench supporting foot (11).

3. The device for detecting the pulling force of the swing arm of the magnet attraction machine according to claim 1, wherein a pressure control valve is arranged on the connecting pipeline of the gas generating device, and a pressure display (4) connected with the pressure control valve is arranged on the test bench (1).

4. The device for detecting the pulling force of the swing arm of the iron absorption machine according to claim 1, wherein a bracket fixing plate (24) is formed at the bottom of the swing arm temporarily hanging on the bracket (2), and the bracket fixing plate (24) is fixed with the test bench (1) through a bracket fixing plate bolt (241).

5. The device for detecting the pulling force of the swing arm of the magnet attraction machine according to claim 1, wherein the pneumatic swing arm pulling mechanism (3) comprises a cylinder fixing seat (31), a cylinder (32), a cylinder column connecting screw (33) and a pulling rod (34), the cylinder fixing seat (31) is fixed on one downward side of the test platform (1), the cylinder (32) is fixed on the cylinder fixing seat (31) and is connected with a gas generating device through the gas generating device connecting pipeline in a use state, the cylinder column (321) of the cylinder (32) extends to the upper side of the test platform (1) from the lower direction of the test platform (1), the lower end of the cylinder column connecting screw (33) is connected with the tail end of the cylinder column (321) in an adjusting manner, the lower end of the pulling rod (34) is hinged with the upper end of the cylinder column connecting screw (33), the upper end of the pulling rod (34) is provided with a swing arm abdicating cavity (341) and the upper end of the swinging arm abdicating rod (34) is provided with a limit pin (342) (ii) a Wherein, a cylinder column abdicating hole (12) is arranged on the test bench (1); the cylinder column connecting screw rod (33) and the pull rod (34) correspond to the right side of the swing arm temporarily hanging the bracket (2).

6. The device for detecting the pulling force of the swing arm of the magnet as claimed in claim 1 or 4, wherein an interference preventing slope (25) is formed on each of the front side and the rear side of the upper part of the swing arm temporary hanging bracket (2).

7. The device for detecting the pulling force of the iron absorption swing arm according to claim 5, wherein a pedal type control switch (5) for controlling the operation of the air cylinder (32) is arranged on a gas production device connecting pipeline connected with the gas production device.

8. The device for detecting the pulling force of the swing arm of the magnet according to claim 1 or 5, wherein the gas generating device is an air compressor or an air pump.

9. The device for detecting the pulling force of the iron absorption swing arm according to claim 5, wherein an internal cylinder column end thread (3211) is formed at the end of the cylinder column (321), an external cylinder column connection screw thread (331) is formed at the lower end of the cylinder column connection screw (33), the external cylinder column connection screw thread (331) is in threaded connection with the internal cylinder column end thread (3211), an adjusting nut (35) is disposed between the lower end of the cylinder column connection screw (33) and the end of the cylinder column (321), and the adjusting nut (35) is in threaded connection with the external cylinder column connection screw thread (331).

10. The iron absorption swing arm tension detecting device according to claim 5, wherein a pull rod hinge lug (332) is formed at an upper end of the cylinder column connecting screw (33), and a hinge lug groove (343) is formed at a lower end of the pull rod (34), the hinge lug groove (343) is engaged with the pull rod hinge lug (332) and the lower end of the pull rod (34) is hinged to the pull rod hinge lug (332) by a pull rod hinge shaft (344).