A closing device for processing large self-locking nuts for shafts

Abstract

The present invention discloses a closing device for processing large self-locking nuts for shafts, which relates to the technical field of nut closing; in order to prevent deformation of the non-deformation area during closing; it includes a base plate, a positioning assembly, a rotating assembly, a lifting assembly and an extrusion assembly, the positioning assembly includes a polished rod and a threaded ring, a box body is installed on the top of the base plate, a top plate is installed on the upper surface of the box body, a groove is provided on the upper surface of the top plate, and a fixing frame is integrally formed inside the box body. The present invention is convenient for positioning the nut by arranging a positioning assembly inside the fixing frame. When in use, the nut is fixed in position by the top of the polished rod, the deformation area is located above the threaded ring, the extrusion assembly is squeezed, and the non-deformation area is screwed together with the threaded ring. After the nut and the threaded ring are screwed together, when the nut is squeezed by the extrusion assembly, the deformation force generated at the closing of the part is offset in the non-deformation area by the screwing of the nut and the threaded ring.

Description

Technical Field

[0001] The invention relates to the technical field of nut closing, in particular to a closing device for processing large self-locking nuts for shafts. Background Art

[0002] The closing process is to first make the nut according to the conventional process, and then extrude the closing part of the nut by extrusion, so that the screw hole in the closing part is plastically deformed in the radial direction, and the radial size of the screw hole in the closing part is smaller than the radial size of the screw connected to it, so that when the screw connected to the nut enters the deformed screw hole of the nut, the radial pressure generated by the elastic deformation of the screw hole makes the nut tightly connected to the screw to achieve the purpose of preventing loosening; when closing the self-locking nut, the existing device usually uses the polished rod and the bottom diameter of the thread for positioning, but after the closing area of ​​the part is deformed, the deformation will extend to the non-closing area, and the positioning of the non-closing area is in a non-stressed state, resulting in the part being unable to offset the deformation force caused by the closing, causing the non-closing area to also deform, making it impossible for the thread plug gauge to be screwed into the non-deformed area of ​​the part.

[0003] After searching, the Chinese patent application number 202210322798.6 discloses a self-locking nut processing device, including a base, a push plate, a thrust plate, a pressure rod, a core shaft and a sleeve. The base is detachably connected to the machine tool used for processing, the push plate is slidably connected to the upper surface of the base, the push plate and the thrust plate are respectively provided with a first inclined surface that cooperates with each other, the sleeve is located above the thrust plate and is detachably connected to the thrust plate, the core shaft is detachably connected to the base plate, the upper end of the core shaft is provided with a groove for placing the nut, the pressure rod and the sleeve are respectively provided with a second inclined surface that cooperates with each other, one end of the pressure rod is slidably connected to the sleeve, and the other end extends into the core shaft groove. The above patent has the following shortcomings: after the nut closing area is deformed, the deformation will extend to the non-closing area, which is not convenient for offsetting the force of part deformation in the non-closing area, affecting the accuracy of the part. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a closing device for processing large self-locking nuts for shafts.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A closing device for processing large self-locking nuts for shafts, comprising a base plate, a positioning assembly, a rotating assembly, a lifting assembly and an extrusion assembly, the positioning assembly comprising a polished rod and a threaded ring, a box body being mounted on the top of the base plate, a top plate being mounted on the upper surface of the box body, a groove being provided on the upper surface of the top plate, a fixing frame being integrally formed inside the box body, the polished rod being rotatably connected to the inside of the fixing frame, the threaded ring being located at the top of the polished rod, a shaft shoulder being integrally formed in the middle of the polished rod, a circular plate being rotatably connected to the bottom of the polished rod, a sliding rod being mounted on the bottom of the circular plate, and the sliding rod being slidably connected to the bottom of the fixing frame.

[0007] Preferably: the rotating assembly includes an idler gear and a first tooth groove, the first tooth groove is opened below the polished rod, the second rotating shaft is rotatably connected inside the box, the middle part of the second rotating shaft is integrally formed with a first worm, the side wall of the fixing frame is opened with an arc groove, the idler gear is rotatably connected inside the arc groove, the idler gear and the first tooth groove cooperate with each other, the side wall of the fixing frame is installed with a fixing plate, the inside of the fixing plate is rotatably connected to the first rotating shaft, the outer surface of the first rotating shaft is rotatably connected to the first gear, the bottom of the first rotating shaft is installed with a first worm wheel, and the first worm wheel cooperates with the first worm.

[0008] Preferably, the extrusion assembly includes a slider and a slide groove, the slide groove is opened above the fixing frame, and the slider is slidably connected to the inside of the slide groove.

[0009] As a preferred embodiment of the present invention: the lifting assembly includes a second tooth groove and a second gear, a support plate is installed on the upper surface of the base plate, a third rotating shaft is rotatably connected between the support plate and the inner side wall of the box body, a second worm is integrally formed on the outer surface of the third rotating shaft, the upper surface of the base plate is rotatably connected to the support rod, a second worm gear is installed on the top of the support rod, the second worm and the second worm gear cooperate with each other, the bottom of the support rod is rotatably connected to the first bevel gear, one side of the first bevel gear is rotatably connected to the second bevel gear, a fourth rotating shaft is installed inside the second bevel gear, the second tooth groove is opened on the side wall of the sliding rod, and the second gear is installed on the outer surface of one end of the fourth rotating shaft.

[0010] As a preferred embodiment of the present invention, a second motor is mounted on the side wall of the box body via bolts, and an output end of the second motor is connected to the second rotating shaft.

[0011] As a preferred embodiment of the present invention, a first motor is mounted on the side wall of the box body via bolts.

[0012] Furthermore: a mounting block is installed on the side wall of the box body, and a knob is rotatably connected to the side wall of the mounting block.

[0013] As a further solution of the present invention: a scale is provided on the side wall of the mounting block.

[0014] As a further solution of the present invention: one end of the knob is welded to the third rotating shaft.

[0015] As a further solution of the present invention: a threaded hole is opened at the bottom of the base plate.

[0016] The beneficial effects of the present invention are:

[0017] 1. By arranging a positioning component inside the fixing frame, the nut can be easily positioned. When in use, the nut is fixed in position by the top of the polished rod, the deformed area is located above the threaded ring, and the non-deformed area is screwed together with the threaded ring at the extrusion component. After the nut and the threaded ring are screwed together, when the nut is extruded by the extrusion component, the deformation force generated at the part closing point is offset in the non-deformed area by the screwing of the nut and the threaded ring.

[0018] 2. By arranging the first worm and the first worm wheel inside the box, it is easy to rotate the positioning assembly so that the threaded ring can be easily screwed with the nut. When in use, the nut is positioned by the light rod, the second motor is started, driving the second shaft to rotate, the second shaft drives the first worm wheel to rotate through the first worm, the first worm wheel drives the first gear to rotate through the first shaft, and the first gear drives the positioning assembly to rotate through the idler gear, so that the threaded ring and the nut are screwed together.

[0019] 3. By arranging an extrusion assembly above the fixing frame, it is convenient to extrude the closing area of ​​the nut, and by installing the first motor on the side wall of the box, it is convenient to control the movement of the slider.

[0020] 4. By arranging a lifting assembly inside the box, the height of the positioning assembly can be easily controlled to adapt to nuts of different heights. When in use, by rotating the knob, the rotating assembly can be driven to move to control the lifting and lowering of the positioning assembly. By arranging a second worm and a second worm gear, self-locking can be achieved to fix the positioning assembly. By opening a scale on the side wall of the mounting block, the lifting height of the positioning assembly can be easily controlled.

[0021] 5. By opening threaded holes at the bottom of the base plate, the device can be easily fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a closing device for processing a large self-locking nut for a shaft proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the rotating structure of a closing device for processing a large self-locking nut for a shaft proposed by the present invention;

[0024] Figure 3This is a schematic cross-sectional structural diagram of a closing device for machining a large self-locking nut for a shaft, as proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the lifting structure of a closing device for processing a large self-locking nut for a shaft proposed by the present invention;

[0026] Figure 5 This is a structural schematic diagram from another perspective of a closing device for processing a large self-locking nut for a shaft proposed by the present invention;

[0027] Figure 6 The present invention provides a schematic structural diagram of a positioning assembly of a closing device for machining a large self-locking nut for a shaft.

[0028] In the figure: 1- bottom plate, 2- threaded hole, 3- box body, 4- top plate, 5- mounting block, 6- knob, 7- scale, 8- groove, 9- slider, 10- slide groove, 11- polished rod, 12- threaded ring, 13- shoulder, 14- first tooth groove, 15- circular plate, 16- slide rod, 17- second tooth groove, 18- arc groove, 19- idler, 20- fixed plate, 21- first rotating shaft, 22- first gear, 23- first worm gear, 24- second rotating shaft, 25- first worm, 26- first motor, 27- second motor, 28- fixed frame, 29- third rotating shaft, 30- second worm, 31- support plate, 32- support rod, 33- second worm gear, 34- first bevel gear, 35- second bevel gear, 36- fourth rotating shaft, 37- second gear. DETAILED DESCRIPTION

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not limit the referred device, structure or element to have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0032] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0033] Example 1:

[0034] A closing device for machining large self-locking nuts for shafts, such as Figure 1-6 As shown, it includes a base plate 1, a positioning assembly, a rotating assembly, a lifting assembly and an extrusion assembly;

[0035] The positioning assembly includes a polished rod 11 and a threaded ring 12. A box body 3 is installed on the top of the base plate 1. A top plate 4 is installed on the upper surface of the box body 3. A groove 8 is provided on the upper surface of the top plate 4. A fixing frame 28 is integrally formed inside the box body 3. The polished rod 11 is rotatably connected to the inside of the fixing frame 28. The threaded ring 12 is located at the top of the polished rod 11. A shoulder 13 is integrally formed in the middle of the polished rod 11. The bottom of the polished rod 11 is rotatably connected to a circular plate 15. A sliding rod 16 is installed at the bottom of the circular plate 15. The sliding rod 16 is slidably connected to the bottom of the fixing frame 28.

[0036] By arranging a positioning component inside the fixing frame 28, the nut can be easily positioned. When in use, the nut is fixed in position by the top of the light rod 11, the deformation area is above the threaded ring 12, and the non-deformation area is screwed together with the threaded ring 12 at the extrusion component. After the nut and the threaded ring 12 are screwed together, when the nut is extruded by the extrusion component, the deformation force generated at the part closing point is offset in the non-deformation area by the screwing of the nut and the threaded ring 12.

[0037] Furthermore, the rotating assembly includes an idler wheel 19 and a first tooth groove 14, the first tooth groove 14 is opened below the light rod 11, and the second rotating shaft 24 is rotatably connected inside the box body 3, and the first worm 25 is integrally formed in the middle of the second rotating shaft 24. The side wall of the fixed frame 28 is opened with an arc groove 18, and the idler wheel 19 is rotatably connected inside the arc groove 18, and the idler wheel 19 and the first tooth groove 14 cooperate with each other. The side wall of the fixed frame 28 is installed with a fixing plate 20, and the fixing plate 20 is rotatably connected inside the first rotating shaft 21, and the outer surface of the first rotating shaft 21 is rotatably connected to the first gear 22, and the bottom of the first rotating shaft 21 is installed with a first worm wheel 23, and the first worm wheel 23 cooperates with the first worm 25. The side wall of the box body 3 is installed with a second motor 27 by bolts, and the output end of the second motor 27 is connected to the second rotating shaft 24.

[0038] By arranging the first worm 25 and the first worm wheel 23 inside the box body 3, it is possible to facilitate the rotation of the positioning assembly so that the threaded ring 12 can be easily screwed into the nut. When in use, the nut is positioned by the light rod 11, the second motor 27 is started, driving the second rotating shaft 24 to rotate, the second rotating shaft 24 drives the first worm wheel 23 to rotate through the first rotating shaft 21, the first worm wheel 23 drives the first gear 22 to rotate through the first rotating shaft 21, and the first gear 22 drives the positioning assembly to rotate through the idler gear 19, so that the threaded ring 12 is screwed into the nut.

[0039] Furthermore, the extrusion assembly includes a slider 9 and a slide 10, the slide 10 is opened above the fixing frame 28, the slider 9 is slidably connected to the inside of the slide 10, and the side wall of the box body 3 is installed with a first motor 26 by bolts.

[0040] By arranging an extrusion assembly above the fixing frame 28, it is convenient to extrude the closing area of ​​the nut, and by installing the first motor 26 on the side wall of the box body 3, it is convenient to control the movement of the slider 9.

[0041] Furthermore, the lifting assembly includes a second tooth groove 17 and a second gear 37, a support plate 31 is installed on the upper surface of the bottom plate 1, and a third rotating shaft 29 is rotatably connected between the support plate 31 and the inner side wall of the box body 3, and a second worm 30 is integrally formed on the outer surface of the third rotating shaft 29; the upper surface of the bottom plate 1 is rotatably connected to a support rod 32, a second worm gear 33 is installed on the top of the support rod 32, the second worm 30 and the second worm gear 33 cooperate with each other, the bottom of the support rod 32 is rotatably connected to the first bevel gear 34, one side of the first bevel gear 34 is rotatably connected to the second bevel gear 35, and a fourth rotating shaft 36 is installed inside the second bevel gear 35, the second tooth groove 17 is opened on the side wall of the sliding rod 16, and the second gear 37 is installed on the outer surface of one end of the fourth rotating shaft 36, the side wall of the box body 3 is installed with a mounting block 5, the side wall of the mounting block 5 is rotatably connected to the knob 6, one end of the knob 6 is welded to the third rotating shaft 29, and the side wall of the mounting block 5 is provided with a scale 7.

[0042] By arranging a lifting assembly inside the box body 3, the height of the positioning assembly can be easily controlled to adapt to nuts of different heights. When in use, by rotating the knob 6, the rotating assembly can be driven to move to control the lifting and lowering of the positioning assembly. By arranging the second worm 30 and the second worm gear 33, self-locking can be achieved to fix the positioning assembly. By providing a scale 7 on the side wall of the mounting block 5, the lifting height of the positioning assembly can be easily controlled.

[0043] When this embodiment is in use, the nut is fixed in position by the top of the polished rod 11, the deformed area is located above the threaded ring 12, and the non-deformed area is screwed together with the threaded ring 12 at the extrusion assembly. After the nut and the threaded ring 12 are screwed together, when the nut is extruded through the extrusion assembly, the deformation force generated at the part closing point is offset in the non-deformed area by the screwing of the nut and the threaded ring 12.

[0044] Example 2:

[0045] A closing device for machining large self-locking nuts for shafts, such as Figure 1 As shown, in order to facilitate the fixation of the device, this embodiment makes the following supplements on the basis of embodiment 1: a threaded hole 2 is opened at the bottom of the base plate 1.

[0046] By providing a threaded hole 2 at the bottom of the base plate 1, the device can be easily fixed.

[0047] The above is a preferred embodiment of the present invention, but it is not the only embodiment of the present invention. Any modification, equivalent substitution and improvement made by any technician familiar with the field within the technical scope disclosed by the present invention in combination with existing technology or public common sense within the spirit and principles of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A closing device for processing large self-locking nuts for shafts, comprising a base plate (1), a positioning assembly, a rotating assembly, a lifting assembly and an extrusion assembly, characterized in that: The positioning assembly includes a polished rod (11) and a threaded ring (12); a box body (3) is installed on the top of the bottom plate (1); a top plate (4) is installed on the upper surface of the box body (3); a groove (8) is provided on the upper surface of the top plate (4); a fixing frame (28) is integrally formed inside the box body (3); the polished rod (11) is rotatably connected to the inside of the fixing frame (28); the threaded ring (12) is located at the top of the polished rod (11); a shaft shoulder (13) is integrally formed in the middle of the polished rod (11); the bottom of the polished rod (11) is rotatably connected to a circular plate (15); a sliding rod (16) is installed at the bottom of the circular plate (15); the sliding rod (16) is slidably connected to the bottom of the circular plate (15); At the bottom of the fixed frame (28), the rotating assembly includes an idler wheel (19) and a first tooth groove (14), the first tooth groove (14) is opened below the light rod (11), the second rotating shaft (24) is rotatably connected inside the box body (3), and the middle of the second rotating shaft (24) is integrally formed with a first worm (25), the side wall of the fixed frame (28) is opened with an arc groove (18), the idler wheel (19) is rotatably connected inside the arc groove (18), the idler wheel (19) and the first tooth groove (14) are matched, the side wall of the fixed frame (28) is installed with a fixed plate (20), and the fixed plate (20) is rotatably connected inside the first rotating shaft (21), The outer surface of the first rotating shaft (21) is rotatably connected to the first gear (22), and the bottom of the first rotating shaft (21) is equipped with a first worm wheel (23), and the first worm wheel (23) cooperates with the first worm (25); the extrusion assembly includes a slider (9) and a slide groove (10), the slide groove (10) is opened above the fixed frame (28), and the slider (9) is slidably connected to the inside of the slide groove (10); the lifting assembly includes a second tooth groove (17) and a second gear (37), the upper surface of the bottom plate (1) is equipped with a support plate (31), and the support plate (31) and the inner side wall of the box body (3) are rotatably connected to a third rotating shaft (29), and the first A second worm (30) is integrally formed on the outer surface of the three rotating shafts (29); a support rod (32) is rotatably connected to the upper surface of the base plate (1); a second worm gear (33) is mounted on the top of the support rod (32); the second worm (30) and the second worm gear (33) cooperate with each other; a first bevel gear (34) is rotatably connected to the bottom of the support rod (32); a second bevel gear (35) is rotatably connected to one side of the first bevel gear (34); a fourth rotating shaft (36) is mounted inside the second bevel gear (35); the second tooth groove (17) is provided on the side wall of the slide rod (16); and the second gear (37) is mounted on the outer surface of one end of the fourth rotating shaft (36).

2. A closing device for processing large self-locking nuts for shafts according to claim 1, characterized in that: A second motor (27) is mounted on the side wall of the box body (3) via bolts, and an output end of the second motor (27) is connected to the second rotating shaft (24).

3. A closing device for processing large self-locking nuts for shafts according to claim 2, characterized in that: A first motor (26) is mounted on the side wall of the box body (3) via bolts.

4. A closing device for machining large self-locking nuts for shafts according to claim 3, characterized in that: A mounting block (5) is installed on the side wall of the box body (3), and a knob (6) is rotatably connected to the side wall of the mounting block (5).

5. A closing device for machining large self-locking nuts for shafts according to claim 4, characterized in that: A scale (7) is provided on the side wall of the mounting block (5).

6. A closing device for machining large self-locking nuts for shafts according to claim 4, characterized in that: One end of the knob (6) is welded to the third rotating shaft (29).

7. The closing device for machining large self-locking nuts for shafts according to claim 1, characterized in that: A threaded hole (2) is provided at the bottom of the base plate (1).

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