Thin-wall cylinder tapping equipment and method in planetary structure gearbox

Abstract

The invention belongs to the technical field of gearbox production, and particularly relates to a thin-wall cylinder tapping device and method in a planetary structure gearbox. The thin-walled cylinder workpiece tapping device is reasonable in structural design and mainly comprises a platform, a rotary bearing, a positioning mechanism, a support, a first push rod, a movable frame, a vertical linear guide rail pair and a tapping mechanism, the positioning mechanism is used for adsorbing and locking a thin-walled cylinder workpiece, and the rotary bearing is used for driving the positioning mechanism and the thin-walled cylinder workpiece to rotate in the circumferential direction; the distance between the tapping mechanism and the thin-walled cylinder workpiece is adjusted through the first push rod, the height position of the tapping mechanism is adjusted through the vertical linear guide rail pair, and the tapping requirements of different positions of a cylinder part in the thin-walled cylinder workpiece are met in this way. And meanwhile, an anti-deformation suction cup is additionally arranged in the punching mechanism and can adsorb and lock the peripheral part of the punching part in advance before punching, so that when the punching die head carries out punching operation, the peripheral part cannot be deformed.

Description

Technical Field

[0001] The invention belongs to the technical field of gear box production, and in particular relates to a device and a method for opening holes in a thin-walled cylinder in a planetary structure gear box. Background Art

[0002] The thin-walled cylinder in the planetary gearbox has multiple functions. First, in order to reduce the volume of the planetary gear transmission and simplify the use of fasteners, the internal gear can be machined directly on the inside of the thin-walled cylinder. This design not only saves space, but also helps to improve the overall compactness and efficiency of the gearbox. Secondly, the structure of the thin-walled cylinder can also enhance its flexibility. Whether the internal gear is rotating or fixed, the thin-walled cylinder design can improve its mechanical properties to a certain extent, making the gearbox more stable and reliable during operation. Finally, the thin-walled cylinder also plays a supporting and fixing role in the planetary gearbox. As a part of the gearbox, it can ensure the correct installation and positioning of components such as gears and planetary carriers, thereby ensuring the normal operation of the entire gearbox. In general, the thin-walled cylinder in the planetary gearbox plays an important role in improving the compactness of the gearbox, enhancing the mechanical properties, and ensuring the normal operation.

[0003] The existing equipment for drilling holes for thin-walled cylinders in planetary gearboxes has some shortcomings when in use. First, due to the large size, high precision, thin wall thickness and poor rigidity of large-scale high-precision thin-walled cylinders, they vibrate greatly and are easily deformed during the drilling process; second, they cannot quickly adjust the position of the drilling mechanism and cannot well meet the drilling requirements of thin-walled cylinders at different positions in planetary gearboxes. Therefore, it is necessary to optimize and improve it. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide a device and method for opening holes in a thin-walled cylinder in a planetary structure gearbox.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a thin-walled cylindrical hole-opening device in a planetary structure gearbox, comprising a platform, a slewing bearing, a positioning mechanism, a bracket, a first push rod, a movable frame, a vertical linear guide pair and a hole-opening mechanism, wherein a slewing bearing and a bracket are fixed to the upper side of the platform, the movable end of the slewing bearing supports a positioning mechanism for adsorbing and positioning a thin-walled cylindrical workpiece, the bracket is installed with a first push rod, the movable end of the first push rod is installed with a vertical linear guide pair via the movable frame, and the vertical linear guide pair is installed with a hole-opening mechanism capable of vertical displacement.

[0007] Furthermore, in the above-mentioned thin-walled cylindrical hole opening device in the planetary structure gearbox, the thin-walled cylindrical workpiece includes a cylindrical portion, the lower end plate of the cylindrical portion is provided with a shaft sleeve integrally connected thereto, and the upper end plate of the cylindrical portion is provided with a circular through hole.

[0008] Furthermore, in the thin-walled cylindrical hole opening device in the above-mentioned planetary structure gearbox, the slewing bearing adopts a structure in which the outer ring is fixed and the inner ring is rotating.

[0009] Furthermore, in the above-mentioned thin-walled cylindrical hole opening device in the planetary structure gearbox, the positioning mechanism includes a horizontal annular suction cup that matches the specifications of the cylindrical part, and the inner side of the horizontal annular suction cup is provided with a cylindrical opening box that extends into the inner cavity of the rotary bearing, and a first vacuum generator and a screw motor are installed on the bottom plate of the cylindrical opening box. The first vacuum generator is connected to the inner cavity of the horizontal annular suction cup through a first negative pressure tube that runs through the cylindrical opening box, and the upper side of the horizontal annular suction cup is evenly distributed with first adsorption holes, and a bidirectional screw is installed at the output end of the screw motor, and the bidirectional screw is provided with two screw segments with opposite rotation directions, and an inner support claw is installed on the outer side of each of the screw segments, and a radial slide groove is provided on the bottom plate of the cylindrical opening box, and the bottom end of the inner support claw is slidably restricted in the radial slide groove.

[0010] Furthermore, in the above-mentioned thin-walled cylindrical hole opening device in the planetary structure gearbox, a guide slider is installed at the bottom end of the movable frame, and a guide groove cooperating with the guide slider is opened inwardly on the upper side of the platform.

[0011] Furthermore, in the above-mentioned thin-walled cylindrical hole opening device in the planetary structure gearbox, the hole opening mechanism includes a mounting plate, a second push rod, a third push rod, a second vacuum generator, a punching die, an anti-deformation suction cup and a second negative pressure tube, the mounting plate is fixed on the slider of the vertical linear guide pair, the second push rod, the third push rod and the second vacuum generator are installed side by side on the mounting plate, the movable end of the second push rod is installed with a punching die, the movable end of the third push rod is installed with an anti-deformation suction cup, and the second vacuum generator is connected to the inner cavity of the anti-deformation suction cup through a second negative pressure tube that can adaptively extend and retract.

[0012] Furthermore, in the above-mentioned thin-walled cylindrical hole opening device in the planetary structure gearbox, the anti-deformation suction cup includes a suction cup body, a center avoidance hole for avoiding the punching die head is opened at the center of the suction cup body, the inner side surface of the suction cup body is an arc surface matching the shape of the outer wall of the cylinder, and the arc surface is covered with a flexible pad, a number of second adsorption holes connected to the inner cavity of the anti-deformation suction cup are correspondingly opened on the inner side of the suction cup body and the flexible pad, and an interface for facilitating the installation of a second negative pressure tube is provided on the outer side of the suction cup body.

[0013] The present invention also provides a method for drilling holes in a thin-walled cylinder in a planetary gearbox. The method is implemented by the device for drilling holes in a thin-walled cylinder in a planetary gearbox, and includes the following steps:

[0014] 1) The thin-walled cylindrical workpiece is mounted on the positioning mechanism, and the screw motor in the positioning mechanism is activated to drive the two inner support claws to move away from each other until the inner support claws abut against the inner wall of the shaft sleeve in the thin-walled cylindrical workpiece, thereby realizing the positioning of the thin-walled cylindrical workpiece. Then the first vacuum generator is started, and the horizontal annular suction cup absorbs and locks the position of the thin-walled cylindrical workpiece;

[0015] 2) Use the slewing bearing to drive the positioning mechanism and the thin-walled cylindrical workpiece to rotate so that the part to be drilled faces the drilling mechanism;

[0016] 3) Using the first push rod to adjust the distance between the hole-opening mechanism and the thin-walled cylindrical workpiece, and using the vertical linear guide pair to adjust the height position of the hole-opening mechanism, so that the forward path of the punching die head of the hole-opening mechanism coincides with the part to be opened;

[0017] 4) The third push rod in the hole opening mechanism moves, pushing the anti-deformation suction cup to contact the outer wall of the cylindrical part of the thin-walled cylindrical workpiece, and then the second vacuum generator is started, and the anti-deformation suction cup and the thin-walled cylindrical workpiece are adsorbed and fixed; the second push rod in the hole opening mechanism moves, and the punching die head punches the part to be punched; after the punching is completed, the hole opening mechanism is reset and waits for the next punching operation.

[0018] The beneficial effects of the present invention are:

[0019] The structural design of the present invention is reasonable. It mainly consists of a platform, a slewing bearing, a positioning mechanism, a bracket, a first push rod, a movable frame, a vertical linear guide pair and a hole opening mechanism. The positioning mechanism is used to adsorb and lock the thin-walled cylindrical workpiece, the slewing bearing is used to drive the positioning mechanism and the thin-walled cylindrical workpiece to rotate circumferentially, the first push rod is used to adjust the distance between the hole opening mechanism and the thin-walled cylindrical workpiece, and the vertical linear guide pair is used to adjust the height position of the hole opening mechanism. In this way, the hole opening requirements at different positions of the cylindrical part of the thin-walled cylindrical workpiece are met; at the same time, an anti-deformation suction cup is added to the hole opening mechanism, and the anti-deformation suction cup can adsorb and lock the outer part of the punching part in advance before punching, so that when the punching die head performs the punching operation, the outer part will not be deformed.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of a thin-walled cylindrical workpiece in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the slewing bearing in the present invention;

[0025] Figure 4 It is a schematic diagram of the main structure of the positioning mechanism in the present invention;

[0026] Figure 5 It is a schematic diagram of the top view of the positioning mechanism in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the activity frame in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the hole-opening mechanism in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the anti-deformation suction cup in the present invention;

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1- platform, 2- slewing bearing, 3- positioning mechanism, 301- horizontal annular suction cup, 302- cylindrical opening box, 303- first vacuum generator, 304- first negative pressure tube, 305- lead screw motor, 306- lead screw, 307- inner support claw, 4- bracket, 5- first push rod, 6- movable frame, 7- vertical linear guide pair, 8- opening mechanism, 801- mounting plate, 802- second push rod, 803- third push rod, 804- second vacuum generator, 805- punching die head, 806- anti-deformation suction cup, 806a- suction cup body, 806b- avoidance center hole, 806c- second adsorption hole, 806d- interface, 807- second negative pressure tube, 9- thin-walled cylindrical workpiece, 901- cylindrical part, 902- bushing, 903- circular through hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 As shown, this embodiment provides a thin-walled cylindrical hole opening device in a planetary gearbox, comprising a platform 1, a slewing bearing 2, a positioning mechanism 3, a bracket 4, a first push rod 5, a movable frame 6, a vertical linear guide pair 7 and a hole opening mechanism 8. The slewing bearing 2 and the bracket 4 are fixed on the upper side of the platform 1, and the movable end of the slewing bearing 2 supports the positioning mechanism 3 for adsorbing and positioning the thin-walled cylindrical workpiece 9. The first push rod 5 is installed on the bracket 4, and the movable end of the first push rod 5 is installed with a vertical linear guide pair 7 through the movable frame 6, and the vertical linear guide pair 7 is installed with a hole opening mechanism 8 capable of vertical displacement.

[0034] like Figure 2 As shown, the thin-walled cylindrical workpiece 9 includes a cylindrical portion 901 , a lower end plate of the cylindrical portion 901 is provided with a shaft sleeve 902 integrally connected thereto, and an upper end plate of the cylindrical portion 901 is provided with a circular through hole 903 .

[0035] like Figure 3 As shown, the slewing bearing 2 adopts a structure in which the outer ring is fixed and the inner ring is rotating.

[0036] like Figure 4 and Figure 5 As shown, the positioning mechanism 3 includes a horizontal annular suction cup 301 that matches the specifications of the cylindrical portion 901. The inner side of the horizontal annular suction cup 301 is provided with a cylindrical opening box 302 that extends into the inner cavity of the slewing bearing 2. The bottom plate of the cylindrical opening box 302 is provided with a first vacuum generator 303 and a screw motor 305. The first vacuum generator 303 is connected to the inner cavity of the horizontal annular suction cup 301 through a first negative pressure tube 304 that runs through the cylindrical opening box 302. The upper side of the horizontal annular suction cup 301 is evenly distributed with first adsorption holes 308. The output end of the screw motor 305 is provided with a bidirectional screw 306. The bidirectional screw 306 is provided with two screw segments with opposite rotation directions. The outer side of each screw segment is sleeved with an inner support claw 307. The bottom plate of the cylindrical opening box 302 is provided with a radial slide groove. The bottom end of the inner support claw 307 is slidably restricted in the radial slide groove.

[0037] like Figure 6 As shown, a guide slider is installed at the bottom of the movable frame 6, and a guide slot matching the guide slider is provided inwardly on the upper side of the platform 1, and the cross section of the guide slot is a T-shaped structure that is narrow at the top and wide at the bottom.

[0038] like Figure 7As shown, the hole-opening mechanism 8 includes a mounting plate 801, a second push rod 802, a third push rod 803, a second vacuum generator 804, a punching die 805, an anti-deformation suction cup 806, and a second negative pressure tube 807. The mounting plate 801 is fixed on the slider of the vertical linear guide pair 7, and the second push rod 802, the third push rod 803, and the second vacuum generator 804 are installed side by side on the mounting plate 801. The active end of the second push rod 802 is installed with a punching die 805, and the active end of the third push rod 803 is installed with an anti-deformation suction cup 806. The second vacuum generator 804 is connected to the inner cavity of the anti-deformation suction cup 806 through the second negative pressure tube 807 that can adaptively extend and retract.

[0039] like Figure 8 As shown, the anti-deformation suction cup 806 includes a suction cup body 806a, a central hole 806b for avoiding the punching die 805 is provided at the center of the suction cup body 806a, and the inner side of the suction cup body 806a is an arc surface that matches the outer wall shape of the cylindrical part 901, and the arc surface is covered with a flexible pad. A plurality of second adsorption holes 806c that are connected to the inner cavity of the anti-deformation suction cup are correspondingly provided on the inner side of the suction cup body 806a and the flexible pad, and an interface 806d for installing the second negative pressure tube 807 is provided on the outer side of the suction cup body 806a.

[0040] This embodiment also provides a method for opening a hole in a thin-walled cylinder in a planetary gearbox, comprising the following steps:

[0041] 1) The thin-walled cylindrical workpiece 9 is mounted on the positioning mechanism 3, and the screw motor 305 in the positioning mechanism 3 is actuated to drive the two inner support claws 307 to move away from each other until the inner support claws 307 abut against the inner wall of the shaft sleeve 902 in the thin-walled cylindrical workpiece 9, thereby achieving the positioning of the thin-walled cylindrical workpiece 9. Then the first vacuum generator 303 is started, and the horizontal annular suction cup 301 absorbs and locks the position of the thin-walled cylindrical workpiece 9.

[0042] 2) The slewing bearing 2 is used to drive the positioning mechanism 3 and the thin-walled cylindrical workpiece 9 to rotate so that the portion to be drilled faces the drilling mechanism 8.

[0043] 3) The first push rod 5 is used to adjust the distance between the hole-opening mechanism 8 and the thin-walled cylindrical workpiece 9, and the vertical linear guide pair 7 is used to adjust the height position of the hole-opening mechanism 8, so that the forward path of the punching die 805 of the hole-opening mechanism 8 coincides with the part to be opened.

[0044] 4) The third push rod 803 in the hole opening mechanism 8 is actuated to push the anti-deformation suction cup 806 to contact the outer wall of the cylindrical portion 901 of the thin-walled cylindrical workpiece 9, and then the second vacuum generator 804 is started, and the anti-deformation suction cup 806 is adsorbed and fixed to the thin-walled cylindrical workpiece 9; the second push rod 802 in the hole opening mechanism 8 is actuated, and the punching die head 806 punches the portion to be punched; after the punching is completed, the hole opening mechanism 8 is reset to wait for the next punching operation.

[0045] The device mainly consists of a platform 1, a slewing bearing 2, a positioning mechanism 3, a bracket 4, a first push rod 5, a movable frame 6, a vertical linear guide pair 7 and a hole opening mechanism 8. The positioning mechanism 3 is used to adsorb and lock the thin-walled cylindrical workpiece 9, the slewing bearing 2 is used to drive the positioning mechanism 3 and the thin-walled cylindrical workpiece 9 to rotate circumferentially, the first push rod is used to adjust the distance between the hole opening mechanism and the thin-walled cylindrical workpiece, and the vertical linear guide pair is used to adjust the height position of the hole opening mechanism. In this way, the hole opening requirements at different positions of the cylindrical part 901 in the thin-walled cylindrical workpiece 9 are met; at the same time, an anti-deformation suction cup 806 is added to the hole opening mechanism 8, and the anti-deformation suction cup 806 can adsorb and lock the outer part of the punching part in advance before punching, so that when the punching die head 805 performs the punching operation, the outer part will not be deformed.

[0046] The preferred embodiments of the present invention disclosed above are only useful to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for drilling holes in thin-walled cylinders in planetary gearboxes, characterized in that: It includes a platform, a slewing bearing, a positioning mechanism, a bracket, a first push rod, a movable frame, a vertical linear guide pair and a hole opening mechanism. The slewing bearing and the bracket are fixed on the upper side of the platform. The movable end of the slewing bearing supports a positioning mechanism for adsorbing and positioning a thin-walled cylindrical workpiece. The first push rod is installed on the bracket. The movable end of the first push rod is installed with a vertical linear guide pair via the movable frame. The vertical linear guide pair is installed with a hole opening mechanism capable of vertical displacement.

2. The thin-walled cylindrical hole opening device in the planetary gearbox according to claim 1, characterized in that: The thin-walled cylindrical workpiece comprises a cylindrical portion, a lower end plate of the cylindrical portion is provided with a shaft sleeve integrally connected therewith, and an upper end plate of the cylindrical portion is provided with a circular through hole.

3. The thin-walled cylindrical hole opening device in the planetary gearbox according to claim 2, characterized in that: The slewing bearing adopts a structure in which the outer ring is fixed and the inner ring is rotating.

4. The thin-walled cylindrical hole opening device in the planetary gearbox according to claim 3, characterized in that: The positioning mechanism includes a horizontal annular suction cup that matches the specifications of the cylindrical part. The inner side of the horizontal annular suction cup is provided with a cylindrical opening box that extends into the inner cavity of the slewing bearing. A first vacuum generator and a screw motor are installed on the bottom plate of the cylindrical opening box. The first vacuum generator is connected to the inner cavity of the horizontal annular suction cup through a first negative pressure tube that penetrates the cylindrical opening box. First adsorption holes are evenly distributed on the upper side of the horizontal annular suction cup. A bidirectional screw is installed at the output end of the screw motor. The bidirectional screw is provided with two screw segments with opposite rotation directions. An inner support claw is installed on the outer side of each screw segment. A radial slide groove is provided on the bottom plate of the cylindrical opening box. The bottom end of the inner support claw is slidably restricted in the radial slide groove.

5. The thin-walled cylindrical hole opening device in the planetary gearbox according to claim 4, characterized in that: A guide slide block is installed at the bottom end of the movable frame, and a guide slide groove cooperating with the guide slide block is opened inwardly on the upper side of the platform.

6. The thin-walled cylindrical hole opening device in the planetary gearbox according to claim 5, characterized in that: The hole opening mechanism includes a mounting plate, a second push rod, a third push rod, a second vacuum generator, a punching die, an anti-deformation suction cup and a second negative pressure tube. The mounting plate is fixed on a slider of a vertical linear guide pair. The second push rod, the third push rod and the second vacuum generator are installed side by side on the mounting plate. The movable end of the second push rod is installed with a punching die, and the movable end of the third push rod is installed with an anti-deformation suction cup. The second vacuum generator is connected to the inner cavity of the anti-deformation suction cup through a second negative pressure tube that can adaptively extend and retract.

7. The thin-walled cylindrical hole opening device in a planetary gearbox according to claim 6, characterized in that: The anti-deformation suction cup includes a suction cup body, a center hole for avoiding a punching die head is opened at the center of the suction cup body, the inner side surface of the suction cup body is an arc surface that matches the shape of the outer wall of the cylinder, and the arc surface is covered with a flexible pad, a plurality of second adsorption holes connected to the inner cavity of the anti-deformation suction cup are correspondingly opened on the inner side of the suction cup body and the flexible pad, and an interface for facilitating the installation of a second negative pressure tube is provided on the outer side of the suction cup body.

8. A method for drilling holes in a thin-walled cylinder in a planetary gearbox, which is implemented based on the device for drilling holes in a thin-walled cylinder in a planetary gearbox according to claim 7, characterized in that: The steps include: 1) The thin-walled cylindrical workpiece is mounted on the positioning mechanism, and the screw motor in the positioning mechanism is activated to drive the two inner support claws to move away from each other until the inner support claws abut against the inner wall of the shaft sleeve in the thin-walled cylindrical workpiece, thereby realizing the positioning of the thin-walled cylindrical workpiece. Then the first vacuum generator is started, and the horizontal annular suction cup absorbs and locks the position of the thin-walled cylindrical workpiece; 2) Use the slewing bearing to drive the positioning mechanism and the thin-walled cylindrical workpiece to rotate so that the part to be drilled faces the drilling mechanism; 3) Using the first push rod to adjust the distance between the hole-opening mechanism and the thin-walled cylindrical workpiece, and using the vertical linear guide pair to adjust the height position of the hole-opening mechanism, so that the forward path of the punching die head of the hole-opening mechanism coincides with the part to be opened; 4) The third push rod in the hole opening mechanism moves, pushing the anti-deformation suction cup to contact the outer wall of the cylindrical part of the thin-walled cylindrical workpiece, and then the second vacuum generator is started, and the anti-deformation suction cup and the thin-walled cylindrical workpiece are adsorbed and fixed; the second push rod in the hole opening mechanism moves, and the punching die head punches the part to be punched; after the punching is completed, the hole opening mechanism is reset and waits for the next punching operation.

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