A floating rotation detection mechanism for automatic press-fitting of planetary axles

Abstract

The present invention discloses a floating rotation detection mechanism and equipment for automatic press-fitting of planetary axles, and relates to the technical field of reducer assembly. The mechanism comprises a base, a positioning mechanism for positioning and installing a planetary bracket is arranged above the base, the positioning mechanism can move vertically up and down, a first elastic component is arranged between the positioning mechanism and the base, the positioning mechanism is rotatably connected to the base, the positioning mechanism comprises a positioning tool base plate and a sliding sleeve, a plurality of positioning sleeves distributed in a circular array are arranged on the positioning tool base plate; the mechanism comprises a first in-place detection mechanism, the first in-place detection mechanism comprises a first travel block component and a first in-place detection sensor, the first travel block component is slidably connected to the positioning sleeve, and the present invention performs positioning monitoring on feeding by arranging a positioning detection mechanism, thereby effectively avoiding the problem of workpieces not being placed in place, avoiding damage to the workpieces due to inappropriate placement, and at the same time improving the degree of automated production, improving processing efficiency, and reducing production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of reducer assembly, and in particular relates to a floating rotation detection mechanism for automatic press-fitting of a planetary axle. Background Art

[0002] Modern development has placed higher and higher demands on the automation level of the manufacturing industry. In the field of wheel-side reducer assembly line technology, press-fitting the planetary axle on the planetary gear frame is one of the essential assembly processes. With the development of the industry, the production rhythm of the automotive industry is getting faster and faster, and the degree of automation is getting higher and higher. The existing process of press-fitting the planetary axle during planetary gear production is relatively backward, and the degree of automation is low, which affects the processing efficiency. In addition, there is a problem of inadequate installation during the processing, which affects the press-fit quality. Therefore, we propose a floating rotation detection mechanism for automatic press-fitting of planetary axles. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide a floating rotation detection mechanism for automatic press-fitting of a planetary gear shaft, so as to solve the problems raised in the above-mentioned background technology.

[0004] The object of the present invention can be achieved by the following technical solutions: a floating rotation detection mechanism for automatic press-fitting of a planetary gear shaft, comprising a base, a positioning mechanism for positioning and installing a planetary bracket is provided above the base, the positioning mechanism can move vertically up and down, a first elastic component is provided between the positioning mechanism and the base, the positioning mechanism is rotatably connected to the base, a rotation driving mechanism is connected to the bottom end of the positioning mechanism, the positioning mechanism comprises a positioning tool base plate and a sliding sleeve, the positioning tool base plate is located above the sliding sleeve and is detachably connected to the sliding sleeve, a plurality of positioning sleeves distributed in a circumferential array are provided on the positioning tool base plate, and the positioning sleeve is fixedly connected to the positioning tool base plate;

[0005] It also includes a first in-place detection mechanism. A first in-place detection mechanism is provided on one side of any of the positioning sleeves. The first in-place detection mechanism includes a first travel block assembly that can move vertically up and down and a first in-place detection sensor that detects the in-place status of the first detection screw. The first travel block assembly is slidably connected to the positioning sleeve, the top of the first travel block assembly exceeds the plane of the top of the positioning sleeve, and the first in-place detection sensor is connected to the base.

[0006] As an optional solution of the present invention, a rotatable rotating shaft is provided in the middle of the base, the bottom end of the rotating shaft is connected to the rotation driving mechanism, the sliding sleeve is slidably connected to the rotating shaft, the sliding sleeve slides along the axis of the rotating shaft, and a guide assembly is provided between the sliding sleeve and the rotating shaft.

[0007] As an optional solution of the present invention, the first elastic component includes a shoulder bolt and a first return spring, the shoulder bolt is slidably connected, the nut of the shoulder bolt does not fall out, the first return spring is sleeved on the shoulder bolt, the bottom end of the shoulder bolt is threadedly connected, and the first return spring is between and.

[0008] As an optional solution of the present invention, a second elastic component is provided between the first travel block component and the positioning sleeve so that the first travel block includes a positioning pin and a first detection screw, the positioning pin is received in the inner hole of the positioning sleeve, the second elastic component is located at the bottom end of the positioning pin between the bottom end of the positioning pin and the bottom wall of the inner hole of the positioning sleeve, the first detection screw is fixedly connected to the positioning pin, and the first detection screw extends to the outside of the slot radially opened on the outer circumferential arm of the positioning sleeve.

[0009] As an optional solution of the present invention, it also includes a second in-place detection mechanism, which is arranged close to the press-fitting terminal. The second in-place detection mechanism includes a second detection screw and a second in-place sensor. The second detection screw is fixedly connected to the sliding sleeve, and the second in-place sensor is connected to the base.

[0010] As an optional solution of the present invention, a plurality of groups of brackets are provided in a circular array on the base, the bottom ends of the brackets are fixedly connected to the top surface of the base, the number of the brackets is consistent with the number of the positioning sleeves, and the first in-place detection sensor and the second in-place sensor are both slidably connected to the brackets.

[0011] As an optional solution of the present invention, the rotation drive mechanism includes a rotary servo motor and a reducer, the input shaft of the reducer is fixedly connected to the output shaft of the rotary servo motor, and the output shaft of the reducer is fixedly connected to the rotating shaft.

[0012] As an optional solution of the present invention, the guide assembly includes a guide flat key, the inner hole wall of the sliding sleeve is provided with a guide slot that can accommodate the guide flat key, and the guide flat key is fixedly connected to the outer wall of the rotating shaft by a stud.

[0013] As an optional solution of the present invention, a positioning cylinder is provided at the top of the positioning pin, the positioning cylinder is coaxial with the positioning sleeve, and the outer diameter of the positioning cylinder is smaller than the inner diameter of the positioning sleeve.

[0014] A device comprises the floating rotation detection mechanism for automatically pressing a planetary gear shaft as described above.

[0015] Beneficial effects of the present invention: The present invention performs positioning monitoring on the loading by setting a positioning detection mechanism, thereby effectively avoiding the problem of the workpiece not being placed in place, avoiding damage to the workpiece due to improper placement, and at the same time improving the degree of automated production, improving processing efficiency, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 yes Figure 1 A cross-sectional view of

[0019] Base 1, rotary servo motor 2, reducer 3, reducer mounting plate 4, bearing seat 5, deep groove ball bearing 6, spacer sleeve 7, bearing cover plate 8, retaining ring 9, rotating shaft 10, guide flat key 11, sliding sleeve 12, shoulder bolt 13, first return spring 14, second detection screw 15, bracket 16, second in-place sensor 17, positioning tool base plate 18, positioning sleeve 19, positioning pin 20, positioning pin cover plate 21, second return spring 22, first detection screw 23, first in-place detection sensor 24. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1-2 In an embodiment of the present invention, a floating rotation detection mechanism for automatic press-fitting of a planetary gear shaft includes a base 1. A positioning mechanism for positioning and installing a planetary bracket is provided above the base 1. The positioning mechanism can move vertically up and down. A first elastic component is provided between the positioning mechanism and the base 1. The positioning mechanism is rotatably connected to the base 1. A rotation driving mechanism is connected to the bottom of the positioning mechanism. The positioning mechanism includes a positioning tool substrate 18 and a sliding sleeve 12. The positioning tool substrate 18 is located above the sliding sleeve 12 and is detachably connected to the sliding sleeve 12. A plurality of positioning sleeves 19 distributed in a circular array are provided on the positioning tool substrate 18. The positioning sleeves 19 are fixedly connected to the positioning tool substrate 18.

[0022] A second elastic component is provided between the first travel block component and the positioning sleeve 19. The first travel block includes a positioning pin 20 and a first detection screw 23. The positioning pin 20 is received in the inner hole of the positioning sleeve 19. The second elastic component is located at the bottom end of the positioning pin 20 between the bottom end of the positioning pin 20 and the bottom wall of the inner hole of the positioning sleeve 19. The first detection screw 23 is fixedly connected to the positioning pin 20. The first detection screw 23 extends to the outside of the radially opened groove of the outer circumferential arm of the positioning sleeve 19. A positioning cylinder is provided at the top of the positioning pin 20. The positioning cylinder is coaxial with the positioning sleeve 19, and the outer diameter of the positioning cylinder is smaller than the inner diameter.

[0023] Specifically, a rotatable rotating shaft 10 is provided in the middle of the base 1, the bottom end of the rotating shaft 10 is connected to the rotating drive mechanism, the sliding sleeve 12 is slidably connected to the rotating shaft 10, the sliding sleeve 12 slides along the axis of the rotating shaft 10, and a guide component is provided between the sliding sleeve 12 and the rotating shaft 10 to ensure the stability of the connection between the sliding sleeve 12 along the rotating shaft 10. Optionally, the guide component includes a guide flat key 11, and the inner hole wall of the sliding sleeve 12 is provided with a guide groove that can accommodate the guide flat key 11, and the guide flat key 11 is fixedly connected to the outer wall of the rotating shaft 10 by a stud.

[0024] It also includes a first in-place detection mechanism. A first in-place detection mechanism is provided on one side of any positioning sleeve 19. The first in-place detection mechanism includes a first stroke block assembly that can move vertically up and down and a first in-place detection sensor 24 that detects the in-place status of the first detection screw 23. The first stroke block assembly is slidably connected to the positioning sleeve 19, and the top of the first stroke block assembly exceeds the plane of the top of the positioning sleeve 19. The first in-place detection sensor 24 is connected to the base 1.

[0025] During press-fitting, the robot places the planetary wheel frame on the planetary wheel frame positioning tooling substrate 18, the floating rotating mechanism positioning assembly composed of the positioning sleeve 19, the positioning pin 20, the positioning pin cover plate 21, the second reset spring 22, and the first detection screw 23, and accurately positions the planetary wheel frame through multiple positioning pins 20; if any positioning pin 20 does not enter the positioning hole of the planetary wheel frame, the second reset spring 22 will be compressed under the gravity of the planetary wheel frame, and the positioning pin 20 will drive the planetary wheel frame and the first detection screw 23 of the planetary wheel shaft to move downward. Once the first detection screw 23 is in place, the planetary wheel frame will be accurately positioned. If the sensor 24 detects a signal, it means that the robot has not placed the planetary wheel frame correctly and needs to be grabbed and replaced; after the planetary wheel frame is placed, the robot grabs a planetary wheel axle and places it on the locating pin 20. Similarly, if the locating pin 20 does not enter the planetary wheel axle locating hole, the second reset spring 22 will be compressed under the gravity of the planetary wheel axle, and the locating pin 20 will drive the planetary wheel frame and the planetary wheel axle pin insertion detection screw to move downward. Once the first in-place detection sensor 24 detects a signal, it means that the robot has not placed the planetary wheel axle correctly and needs to be grabbed and replaced.

[0026] Optionally, the first elastic component includes a shoulder bolt 13 and a first return spring 14. The shoulder bolt 13 is slidingly connected to 12, the nut of the shoulder bolt 13 does not fall off 12, the first return spring 14 is sleeved on the shoulder bolt 13, the bottom end of the shoulder bolt 13 is threadedly connected to 10, and the first return spring 14 is between 12 and 10.

[0027] Optionally, a second in-place detection mechanism is also included, which is arranged near the press-fitting terminal. The second in-place detection mechanism includes a second detection screw 15 and a second in-place sensor 17. The second detection screw 15 is fixedly connected to the sleeve 12, and the second in-place sensor 17 is connected to the base 1.

[0028] Optionally, a plurality of groups of brackets 16 are provided in a circular array on the base 1 , the bottom ends of the brackets 16 are fixedly connected to the top surface of the base 1 , the number of the brackets 16 is consistent with the number of the positioning sleeves 19 , and the first in-place detection sensor 24 and the second in-place sensor 17 are both slidably connected to the brackets 16 .

[0029] Optionally, the rotation drive mechanism includes a rotary servo motor 2 and a reducer 3, the input shaft of the reducer 3 is fixedly connected to the output shaft of the rotary servo motor 2, and the output shaft of the reducer 3 is fixedly connected to the rotary shaft 10. Specifically, Figure 2 As shown, a reducer mounting plate 4 is provided on the base 1, and the housing seat of the reducer 3 is fixedly installed on the reducer mounting plate 4. A deep groove ball bearing 6 is provided between the rotating shaft 10 and the base 1. The deep groove ball bearing 6 is fixedly installed on the bearing seat 5, and the bearing 5 is fixedly connected to the base 1. A retaining spring 9 is provided on the rotating shaft 10 to limit the deep groove ball bearing 6 radially, and a spacer 7 is provided in the middle of the bearing seat 5 to separate the upper and lower bearings. A bearing cover plate 8 is provided at the top of the bearing seat 5 to limit the bearing.

[0030] After the robot places the planetary gear shaft, it rotates the servo motor 2 to drive the indexing position of the planetary gear shaft to rotate to the press-fit position. The upper pressure head mechanism starts press-fitting under the drive of the servo electric cylinder. As the press-fitting starts, the force of the press-fitting gradually exceeds the elastic force of the first reset spring 14, and the first reset spring 14 contracts, and then the sleeve 12, the planetary gear frame, the planetary gear shaft, etc. move down together until the sleeve 12 and the bearing seat 5 are in rigid contact to achieve the reaction force support of the press-fitting, and then the servo electric cylinder further increases the pressure to press the planetary gear shaft onto the planetary gear frame (during the press-fitting process, the planetary gear shaft will press the positioning pin 20 out of the planetary gear frame through the second reset spring 22); after the press-fitting is completed, the sleeve 12, the planetary gear frame, the planetary gear shaft, etc. will be reset under the elastic force of the first reset spring 14, the sleeve 12 is separated from the bearing seat 5, and the rotating mechanism rotates the next planetary gear shaft to the press-fitting position. The mechanism performs the same action five times in sequence to press the five planetary gear shafts onto the planetary gear frame.

[0031] A device comprises the above-mentioned floating rotation detection mechanism for automatically pressing and fitting a planetary axle, and is used for fixing the planetary axle.

[0032] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed or operate in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0034] For those skilled in the art, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. Therefore, from any point of view, the embodiments should be regarded as instructive and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. It is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A floating rotation detection mechanism for automatic press-fitting of a planetary axle, comprising a base (1), characterized in that: A positioning mechanism for positioning and installing the planetary bracket is provided above the base (1); the positioning mechanism can move vertically up and down; a first elastic component is provided between the positioning mechanism and the base (1); the positioning mechanism is rotatably connected to the base (1); a rotation driving mechanism is connected to the bottom end of the positioning mechanism; the positioning mechanism comprises a positioning tool base plate (18) and a sliding sleeve (12); the positioning tool base plate (18) is located above the sliding sleeve (12) and is detachably connected to the sliding sleeve (12); a plurality of positioning sleeves (19) are provided on the positioning tool base plate (18) in a circumferential array; the positioning sleeves (19) are fixedly connected to the positioning tool base plate (18); It also includes a first in-place detection mechanism, one side of any of the positioning sleeves (19) is provided with the first in-place detection mechanism, the first in-place detection mechanism includes a first travel block assembly that can move vertically up and down and a first in-place detection sensor (24) for detecting the in-place state of the first detection screw (23), the first travel block assembly is slidably connected to the positioning sleeve (19), the top end of the first travel block assembly exceeds the plane of the top end of the positioning sleeve (19), and the first in-place detection sensor (24) is connected to the base (1); A rotatable rotating shaft (10) is provided in the middle of the base (1), the bottom end of the rotating shaft (10) is connected to a rotating drive mechanism, the sliding sleeve (12) is slidably connected to the rotating shaft (10), the sliding sleeve (12) slides along the axis of the rotating shaft (10), and a guide assembly is provided between the sliding sleeve (12) and the rotating shaft (10); The first elastic component comprises a flange bolt (13) and a first return spring (14); the flange bolt (13) is slidably connected to the sliding sleeve (12); a nut of the flange bolt (13) and the sliding sleeve (12) are not detached; the flange bolt (13) is sleeved with the first return spring (14); the bottom end of the flange bolt (13) is threadedly connected to the rotating shaft (10); and the first return spring (14) is interposed between the sliding sleeve (12) and the rotating shaft (10); A second elastic component is provided between the first travel block component and the positioning sleeve (19), and the first travel block component includes a positioning pin (20) and a first detection screw (23). The positioning pin (20) is received in the inner hole of the positioning sleeve (19), and the second elastic component is located at the bottom end of the positioning pin (20) between the bottom end of the positioning pin (20) and the bottom wall of the inner hole of the positioning sleeve (19). The first detection screw (23) is fixedly connected to the positioning pin (20), and the first detection screw (23) extends to the outside of the slot radially opened on the outer circumferential arm of the positioning sleeve (19).

2. A floating rotation detection mechanism for automatic press-fitting of a planetary axle according to claim 1, characterized in that: It also comprises a second in-place detection mechanism, which comprises a second detection screw (15) and a second in-place sensor (17), wherein the second detection screw (15) is fixedly connected to the sliding sleeve (12), and the second in-place sensor (17) is connected to the base (1).

3. A floating rotation detection mechanism for automatic press-fitting of a planetary axle according to claim 2, characterized in that: A plurality of brackets (16) are provided in a circular array on the base (1), the bottom ends of the brackets (16) are fixedly connected to the top surface of the base (1), the number of the brackets (16) is consistent with the number of the positioning sleeves (19), and the first in-position detection sensor (24) and the second in-position sensor (17) are both slidably connected to the brackets (16).

4. The floating rotation detection mechanism for automatic press-fitting of a planetary axle according to claim 1, characterized in that: The rotary drive mechanism comprises a rotary servo motor (2) and a reducer (3), wherein the input shaft of the reducer (3) is fixedly connected to the output shaft of the rotary servo motor (2), and the output shaft of the reducer (3) is fixedly connected to the rotary shaft (10).

5. The floating rotation detection mechanism for automatic press-fitting of a planetary axle according to claim 1, characterized in that: The guide assembly comprises a guide flat key (11); the inner hole wall of the sliding sleeve (12) is provided with a guide sliding groove capable of accommodating the guide flat key (11); the guide flat key (11) is fixedly connected to the outer wall of the rotating shaft (10) via a stud.

6. A device for fixing a planetary axle, characterized in that: The invention comprises a floating rotation detection mechanism for automatic press-fitting of a planetary axle according to any one of claims 1 to 5.

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