阅读说明：本技术 一种差速机右壳的旋转定位装置及定位方法 (Rotary positioning device and positioning method for right shell of differential machine ) 是由 潘春燕 于 2021-06-21 设计创作，主要内容包括：本发明公开了一种差速机右壳的旋转定位装置及定位方法,涉及差速机技术领域,旨在解决差速机右壳螺孔人工攻丝时效率低下、定位不准确的情况技术问题,其技术方案要点是：一种差速机右壳的旋转定位装置,包括安装架,所述安装架上固定有安装台,所述安装台上设有定位仪,所述定位仪用于定位差速机右壳；所述定位仪一侧设有与之适配的角度调整装置；所述安装台侧壁设有侧板,所述侧板上固定有加工装置。本发明的目的在于提供一种定位高效且精准的旋转定位装置及定位方法。(The invention discloses a rotary positioning device and a positioning method for a right shell of a differential machine, relates to the technical field of differential machines, aims to solve the technical problems of low efficiency and inaccurate positioning during manual tapping of a screw hole of the right shell of the differential machine, and adopts the technical scheme that: a rotary positioning device for a right shell of a differential machine comprises a mounting frame, wherein a mounting table is fixed on the mounting frame, a positioning instrument is arranged on the mounting table, and the positioning instrument is used for positioning the right shell of the differential machine; one side of the positioning instrument is provided with an angle adjusting device matched with the positioning instrument; the side wall of the mounting table is provided with a side plate, and a processing device is fixed on the side plate. The invention aims to provide a rotary positioning device and a positioning method which are efficient and accurate in positioning.)

1. The utility model provides a rotational positioning device of differential mechanism right side shell, includes mounting bracket (1), be fixed with mount table (2), its characterized in that on mounting bracket (1): a positioning instrument (3) is arranged on the mounting table (2), and the positioning instrument (3) is used for positioning a right shell (26) of the differential mechanism; one side of the positioning instrument (3) is provided with an angle adjusting device matched with the positioning instrument; the side wall of the mounting table (2) is provided with a side plate (4), and a processing device is fixed on the side plate (4).

2. The rotational positioning apparatus of a right differential case as claimed in claim 1, wherein: locator (3) are including location rifle (301), be equipped with distance sensor (5) and photoelectric sensor (6) side by side in location rifle (301), distance sensor (5) are used for measuring the height on differential mechanism right side shell (26) surface, photoelectric sensor (6) are used for transmitting signal drive angle adjusting device and rotate.

3. The rotational positioning apparatus of a right differential case as claimed in claim 1, wherein: the angle adjusting device comprises a clamping device and a driving device; the clamping device comprises a fixing plate (7) arranged on the mounting table (2), a driving cylinder (8), a first clamping plate (9) and a second clamping plate (10) are arranged on the fixing plate (7), the driving cylinder (8) is fixed to one side of the upper end face of the fixing plate (7), the telescopic end of the driving cylinder is connected with the first clamping plate (9), and the second clamping plate (10) is fixed to the other side of the upper end face of the fixing plate (7);

a through hole (11) which penetrates through the mounting table (2) is formed in the lower portion of the fixing plate (7) in an up-and-down mode, a transmission shaft (12) is arranged at the through hole (11) in the lower end face of the mounting table (2), one end of the transmission shaft (12) penetrates through the through hole (11) and is fixed to the fixing plate (7), and a first transmission wheel (13) is sleeved on the outer wall of the transmission shaft; the lower end face of the mounting table (2) is further fixedly provided with a servo motor (14), a second driving wheel (15) which rotates along with the servo motor (14) is fixed at the rotating end of the servo motor (14), and the second driving wheel (15) is connected with the first driving wheel (13) through a conveying belt (16).

The photoelectric sensor (6) transmits signals to drive the servo motor (14) and finally drives the fixing plate (7) to rotate.

4. The rotational positioning apparatus of a right differential case as claimed in claim 3, wherein: the processing device comprises a processing table (17) fixed to the side plate (4), a placing groove (18) is formed in the upper end face of the processing table (17), positioning screw holes (19) are formed in the positions surrounding the placing groove (18), and inspection blocks (20) are further arranged on the upper end face of the processing table (17) at equal intervals surrounding the placing groove (18).

5. The rotational positioning apparatus of a right differential case as claimed in claim 4, wherein: the inspection block (20) comprises an inspection column (201) and limiting columns (202) arranged on two sides of the inspection column (201), wherein the limiting columns (202) cover the positioning screw holes (19), and the upper end faces of the limiting columns (202) are provided with limiting screw holes (21) penetrating through the positioning screw holes (19).

6. A positioning method of a right shell of a differential mechanism is characterized in that: the rotary positioning device of the right casing of the differential mechanism as claimed in any one of claims 1 to 5, comprising the steps of:

s1, arranging a PLC control system (22) and a decision-making robot (29) at a cloud end, and arranging a comparison module (24) at the same time;

s2, the bottom (262) of the right shell of the differential mechanism is placed between a first clamping plate (9) and a second clamping plate (10), an optical signal sent by a photoelectric sensor (6) is blocked and rebounded by the right shell (26) of the differential mechanism, an internal receiving part of the photoelectric sensor (6) receives the optical signal and converts the optical signal into an electric signal to be sent to a PLC (programmable logic controller) control system (22), the PLC control system (22) starts a servo motor (14) to rotate after receiving the electric signal, and meanwhile, a fixing plate (7) rotates along with the servo motor;

s3, setting a rotation angle for the fixing plate (7), measuring the height of the outer wall of the top (261) of the right shell of the differential mechanism by the distance sensor (5) while the fixing plate (7) rotates, and storing a scanning value into the register (23);

s4, after the fixed plate (7) rotates, the register (23) transmits all the collected scanning values to the comparison module (24), the comparison module (24) analyzes the farthest point of the outer wall of the top (261) of the right differential case away from the sensor (5), and transmits the analyzed value to the PLC control system (22), and then the PLC control system (22) controls the servo motor (14) to rotate backwards by a certain angle, so that each scanning hole of the right differential case (26) and each inspection block (20) on the upper end face of the machining table (17) are enabled to keep the same direction;

s5, moving the differential mechanism right shell (26) in the direction to the processing table (17) through a corresponding clamping mechanism, and checking whether the differential mechanism right shell (26) can be embedded into the processing table (17);

s6, after the differential machine right shell (26) is embedded into the machining table (17), the PLC control system (22) sends a passing signal to the decision-making robot (29), and meanwhile the decision-making robot (29) controls corresponding machined parts to tap the differential machine right shell (26).

7. The method of claim 6, wherein the step of positioning the right casing of the differential mechanism comprises the steps of: the rotation angle of the fixing plate (7) is 180 degrees.

8. The method of claim 6, wherein the step of positioning the right casing of the differential mechanism comprises the steps of: the distance sensor (5) transfers the scanned value of the outer wall height of the differential case top (261) to the register (23) every 100 milliseconds.

9. The method of claim 6, wherein the step of positioning the right casing of the differential mechanism comprises the steps of: the touch screen (25) is arranged in the process that the PLC control system (22) transmits the passing signals to the decision-making robot (29), the touch screen (25) can display the signal transmission condition of the PLC control system (22), and meanwhile, a user can set the passing signal transmission to be in a dynamic or automatic mode through the touch screen (25).

Technical Field

The invention belongs to the technical field of differential machines, and particularly relates to a rotary positioning device and a positioning method for a right shell of a differential machine.

Background

The automobile differential mechanism is a mechanism which can enable a left driving wheel and a right driving wheel to rotate at different rotating speeds, mainly comprises a left half shaft gear, a right half shaft gear, two planetary gears and a left shell and a right shell, and has the function of enabling the left wheel and the right wheel to roll at different rotating speeds when an automobile turns or runs on an uneven road surface, namely ensuring that the driving wheels at two sides do pure rolling motion.

The differential mechanism right side shell includes interconnect's top and bottom usually, and the top is connected with the roof, and the top outer wall is equipped with a plurality of installation lug, and installation lug is fixed to the roof simultaneously, and the screw that runs through from top to bottom is equipped with to the installation lug.

When tapping is carried out on a screw hole of a right shell of a differential gear machine in the industry at present, positioning tapping is usually carried out manually, the efficiency is low, and the situation of inaccurate positioning also occurs, so a new scheme needs to be provided to solve the problem; simultaneously for better location, need improve original differential mechanism right side shell, wherein the top outer wall between two installation lugs sets up the scanning hole, and the scanning hole encircles the top outer wall of differential mechanism right side shell and all arranges apart from, and the width between two installation lugs that the scanning hole was located is greater than the width between the installation lug that does not set up the scanning hole simultaneously.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a rotary positioning device and a positioning method which are efficient and accurate in positioning.

The technical purpose of the invention is realized by the following technical scheme: a rotary positioning device for a right shell of a differential machine comprises a mounting frame, wherein a mounting table is fixed on the mounting frame, and a positioning instrument is arranged on the mounting table and used for positioning the right shell of the differential machine; one side of the positioning instrument is provided with an angle adjusting device matched with the positioning instrument; the lateral wall of the mounting table is provided with a lateral plate, and a processing device is fixed on the lateral plate.

The invention is further provided with: the locator includes the location rifle, is equipped with distance sensor and photoelectric sensor in the location rifle side by side, and distance sensor is used for measuring the height on differential mechanism right side shell surface, and photoelectric sensor is used for transmitting signal drive angle adjusting device and rotates.

The invention is further provided with: the angle adjusting device comprises a clamping device and a driving device; the clamping device comprises a fixed plate arranged on the mounting table, a driving cylinder, a first clamping plate and a second clamping plate are arranged on the fixed plate, the driving cylinder is fixed to one side of the upper end face of the fixed plate, the telescopic end of the driving cylinder is connected with the first clamping plate, and the second clamping plate is fixed to the other side of the upper end face of the fixed plate;

a through hole which penetrates through the mounting table up and down is formed in the mounting table below the fixing plate, a transmission shaft is arranged at the through hole in the lower end face of the mounting table, one end of the transmission shaft penetrates through the through hole and is fixed to the fixing plate, and a first transmission wheel is sleeved on the outer wall of the transmission shaft; a servo motor is further fixed on the lower end face of the mounting table, a second driving wheel which rotates along with the servo motor is fixed on the rotating end of the servo motor, and the second driving wheel is connected with the first driving wheel through a conveying belt.

The photoelectric sensor transmits a signal to drive the servo motor to rotate.

The invention is further provided with: the processing device comprises a processing table fixed to the side plate, the upper end face of the processing table is provided with a placing groove and positioning screw holes surrounding the placing groove, and the upper end face of the processing table is further provided with a check block surrounding the placing groove at equal distance.

The invention is further provided with: the inspection block comprises an inspection column and limiting columns arranged on two sides of the inspection column, the limiting columns cover the positioning screw holes, and limiting screw holes penetrating through the positioning screw holes are formed in the upper end faces of the limiting columns.

A positioning method of a right shell of a differential machine is realized based on a rotary positioning device of the right shell of the differential machine of any one of claims 1 to 5, and comprises the following steps:

s1, arranging a PLC control system and a decision-making robot at a cloud end, and simultaneously arranging a comparison module;

s2, placing the bottom of the right shell of the differential mechanism between a first clamping plate and a second clamping plate, blocking and rebounding an optical signal sent by a photoelectric sensor by the right shell of the differential mechanism, receiving the optical signal by an internal receiving part of the photoelectric sensor, converting the optical signal into an electric signal and sending the electric signal to a PLC control system, starting a servo motor to rotate after the PLC control system receives the electric signal, and simultaneously rotating a fixing plate;

s3, setting a rotation angle for the fixed plate, measuring the height of the outer wall at the top of the right shell of the differential mechanism by the distance sensor while the fixed plate rotates, and storing a scanning value into a register;

s4, after the rotation of the fixed plate is finished, all the scanning values collected by the fixed plate are transmitted to a comparison module by a register, the comparison module analyzes the farthest point of the outer wall of the top of the right shell of the differential mechanism away from the sensor and transmits the analysis value to a PLC control system, and then the PLC control system controls a servo motor to rotate backwards by a certain angle to ensure that each scanning hole of the right shell of the differential mechanism and each inspection block of the upper end face of the processing table keep the same direction;

s5, moving the differential mechanism right shell in the direction to a processing table through a corresponding clamping mechanism, and checking whether the differential mechanism right shell can be embedded into the processing table or not;

and S6, after the right shell of the differential mechanism is embedded into the processing table, the PLC control system sends a passing signal to the decision-making robot, and the decision-making robot controls the corresponding machined part to tap the right shell of the differential mechanism.

The invention is further provided with: the fixed plate rotates 180 degrees.

The invention is further provided with: the distance sensor passes the scanned value of the differential case right top outer wall height to the register every 100 milliseconds.

The invention is further provided with: the touch screen is arranged in the process that the PLC control system transmits the passing signals to the decision-making robot, the touch screen can display the signal transmission condition of the PLC control system, and meanwhile, a user can set the passing signal transmission to be in a manual or automatic mode through the touch screen.

The invention has the following beneficial effects: 1. the full-automatic positioning of the right shell of the differential mechanism can be realized, the high-efficiency and accurate positioning of the right shell of the differential mechanism is guaranteed, the positions, where tapping needs to be carried out, of the right shell of the differential mechanism embedded into the machining table are aligned to all positioning screw holes in the machining table, the tapping accuracy of the right shell of the differential mechanism is finally guaranteed, and therefore the product is guaranteed to meet the corresponding specification standard.

2. The touch screen can be arranged to more intuitively reflect the signal transmission condition of the PLC control system for a user, so that the user can conveniently judge whether the PLC control system works normally.

Drawings

FIG. 1 is an overall perspective view of a rotational positioning device of a right housing of a differential machine;

FIG. 2 is an enlarged view of the portion G1 of the rotary positioning device of the right casing of the differential mechanism;

FIG. 3 is a schematic view of the positioning gun of the rotary positioning device of the right casing of the differential mechanism near the end of the fixed plate;

FIG. 4 is a schematic view of a driving device of a rotational positioning device of a right casing of a differential mechanism;

FIG. 5 is an enlarged view of the structure of part G2 of the rotational positioning device of the right casing of the differential mechanism;

FIG. 6 is a schematic view of a right differential case construction of a rotational positioning apparatus for a right differential case;

FIG. 7 is a block logic diagram of a positioning method of a right case of a differential mechanism.

Description of the drawings: 1. a mounting frame; 2. an installation table; 3. a positioning instrument; 301. positioning the gun; 4. a side plate; 5. a distance sensor; 6. a photosensor; 7. a fixing plate; 8. a driving cylinder; 9. a first splint; 10. a second splint; 11. a through hole; 12. a drive shaft; 13. a first drive pulley; 14. a servo motor; 15. a second transmission wheel; 16. a conveyor belt; 17. a processing table; 18. a placement groove; 19. positioning the screw hole; 20. a check block; 201. inspecting the column; 202. a limiting column; 21. a limiting screw hole; 22. a PLC control system; 23. a register; 24. a comparison module; 25. a touch screen; 26. a differential right housing; 261. the top of the right differential case; 262. the bottom of the right shell of the differential mechanism; 27. mounting a bump; 28. scanning the hole; 29. and (4) a decision-making robot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 6, a rotary positioning device for a right casing of a differential gear machine comprises a mounting frame 1, wherein a mounting table 2 is fixed on the mounting frame 1, a positioning instrument 3 is arranged on the mounting table 2, and the positioning instrument 3 is used for positioning a right casing 26 of the differential gear machine; one side of the positioning instrument 3 is provided with an angle adjusting device matched with the positioning instrument; the side wall of the mounting table 2 is provided with a side plate 4, and a processing device is fixed on the side plate 4.

The positioning instrument 3 comprises a positioning gun 301, a distance sensor 5 and a photoelectric sensor 6 are arranged in the positioning gun 301 in parallel, the distance sensor 5 is used for measuring the height of the surface of the right shell 26 of the differential mechanism, and the photoelectric sensor 6 is used for transmitting a signal to drive the angle adjusting device to rotate.

The angle adjusting device comprises a clamping device and a driving device; the clamping device comprises a fixing plate 7 arranged on the mounting table 2, a driving cylinder 8, a first clamping plate 9 and a second clamping plate 10 are arranged on the fixing plate 7, the driving cylinder 8 is fixed to one side of the upper end face of the fixing plate 7, the telescopic end of the driving cylinder is connected with the first clamping plate 9, and the second clamping plate 10 is fixed to the other side of the upper end face of the fixing plate 7;

the mounting table 2 below the fixing plate 7 is provided with a through hole 11 which penetrates through the mounting table from top to bottom, a transmission shaft 12 is arranged at the through hole 11 on the lower end face of the mounting table 2, one end of the transmission shaft 12 penetrates through the through hole 11 and is fixed to the fixing plate 7, and the outer wall of the transmission shaft is sleeved with a first transmission wheel 13; a servo motor 14 is further fixed on the lower end face of the mounting table 2, a second driving wheel 15 which rotates along with the servo motor 14 is fixed on the rotating end of the servo motor 14, and the second driving wheel 15 is connected with the first driving wheel 13 through a conveying belt 16.

The photoelectric sensor 6 transmits a signal to drive the servo motor 14 to rotate.

The processing device comprises a processing table 17 fixed to the side plate 4, a placing groove 18 is formed in the upper end face of the processing table 17, positioning screw holes 19 are formed around the placing groove 18, and inspection blocks 20 are arranged on the upper end face of the processing table 17 at equal intervals around the placing groove 18.

The inspection block 20 comprises an inspection column 201 and limiting columns 202 arranged on two sides of the inspection column 201, the limiting columns 202 cover the positioning screw holes 19, and the upper end faces of the limiting columns 202 are provided with limiting screw holes 21 penetrating through the positioning screw holes 19.

As shown in fig. 7, a method for positioning a right differential case 26 includes the following steps:

s1, arranging a PLC control system 22 and a decision-making robot 29 at a cloud end, and simultaneously arranging a comparison module 24;

s2, the bottom 262 of the right shell of the differential mechanism is placed between the first clamping plate 9 and the second clamping plate 10, an optical signal sent by the photoelectric sensor 6 is blocked and rebounded by the right shell 26 of the differential mechanism, an internal receiving part of the photoelectric sensor 6 receives the optical signal and converts the optical signal into an electric signal to be sent to the PLC control system 22, the PLC control system 22 starts the servo motor 14 to rotate after receiving the electric signal, and meanwhile, the fixing plate 7 rotates along with the electric signal;

s3, setting a rotation angle for the fixing plate 7, measuring the height of the outer wall of the top 261 of the right shell of the differential mechanism by the distance sensor 5 while the fixing plate 7 rotates, and storing a scanning value into the register 23;

s4, after the fixed plate 7 rotates, the register 23 transmits all the collected scanning values to the comparison module 24, the comparison module 24 analyzes the farthest point of the outer wall of the top 261 of the right differential case from the sensor 5 and transmits the analyzed value to the PLC control system 22, and then the PLC control system 22 controls the servo motor 14 to rotate backwards by a certain angle to ensure that each scanning hole 28 of the right differential case 26 and each inspection block 20 on the upper end face of the processing table 17 keep the same direction;

s5, moving the differential mechanism right shell 26 in the direction to the processing table 17 through a corresponding clamping and grabbing mechanism, wherein the clamping jaw mechanism is common and is not excessively elaborated and protected, for example, a mechanical clamping jaw arranged on the conveyor belt 16 controls the operation of the mechanical clamping jaw through the PLC control system 22, and finally, whether the differential mechanism right shell 26 can be embedded into the processing table 17 is checked;

the principle of the embedding is as follows: in the background art, in order to cooperate with the present invention, the width between two mounting bumps 27 where the scanning hole 28 is located is greater than the width between mounting bumps 27 where the scanning hole 28 is not located, so that only between two mounting bumps 27 where the scanning hole 28 is located can the inspection block 20 be embedded, and other mounting bumps 27 where the scanning hole 28 is not located cannot be embedded into the inspection block 20 due to too small width, and a situation that the lower end of the bottom 262 of the right casing of the differential gear is clamped at the top end of the inspection column 201 occurs, which means that the device has a positioning error, and the PLC control system 22 stops the operation of related components.

S6, after the differential mechanism right shell 26 is embedded into the processing table 17, the PLC control system 22 sends a passing signal to the decision-making robot 29, and meanwhile the decision-making robot 29 controls the corresponding machined part to tap the differential mechanism right shell 26.

The fixed plate 7 rotates 180 degrees.

The distance sensor 5 passes the scanned value of the outer wall height of the right differential case top 261 to the register 23 every 100 milliseconds.

The touch screen 25 is arranged in the process that the PLC control system 22 transmits the passing signal to the decision-making robot 29, the touch screen 25 can display the signal transmission condition of the PLC control system 22, and meanwhile, a user can set the transmission of the passing signal to a manual or automatic mode through the touch screen 25.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.