Press fitting equipment and method suitable for commutator processing

Abstract

The invention relates to the technical field of commutator press fitting, in particular to press fitting equipment and method suitable for commutator machining, the press fitting equipment comprises a press fitting platform, a rotor fixing mechanism and a moving column are arranged on the press fitting platform, the rotor fixing mechanism comprises a rotating cylinder, and a self-adaptive grabbing assembly is arranged on the moving column; through the self-adaptive grabbing assembly, matched large clamping faces can be achieved for commutators of different sizes in a self-adaptive mode, stable clamping and conveying of the commutators before and after feeding are improved, automatic press-fitting processing is achieved, the commutators can be flexibly clamped and fixed, and the automatic press-fitting effect is achieved. The problem of clamping damage to the commutator can be avoided while stable clamping is ensured; and the eddy current sensor and the infrared distance measuring sensor are combined to carry out secondary data acquisition on the rotating commutator and the rotor, data analysis is carried out by the controller, and corresponding stop signals are generated, so that automatic adjustment of the press-fitting angle value of the commutator and the rotor is realized, and the effect of further improving the automatic press-fitting precision is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of commutator press-fitting, and in particular to a press-fitting device and method suitable for commutator processing. Background Art

[0002] As a key component of the armature of DC motors and AC commutator motors, the commutator is made of high-purity copper sheets and insulating mica sheets alternately laminated to form a precise cylindrical or disc-shaped structure. The copper sheets are used as conductive carriers and are connected to specific sections of the armature coils through end face welding to form a dynamic current path. In DC motors, the sliding contact between the commutator and the brushes realizes the energy conversion from armature AC to brush DC; in AC commutator motors, the commutator adjusts the phase difference of the AC between the brushes to match the output frequency with the load requirements.

[0003] For example, in the prior art, there is a commutator press-fitting device with publication number CN222095257U. The device limits the commutator by means of a limit protrusion in the commutator positioning seat, and limits the core assembly by means of a limit plate on the core positioning seat. Although the press-fitting processing of different assembly angle values ​​between the commutator and the core assembly can be achieved through the rotation of the commutator positioning seat, the commutator positioning seat adopts a fixed inner diameter structure and is only suitable for the press-fitting processing of a single specific specification of commutator, and cannot achieve press-fitting processing of multiple sizes. In addition, it is difficult to achieve the effect of automated press-fitting processing during the press-fitting process, thereby reducing the press-fitting efficiency.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide a press-fitting device and method suitable for commutator processing to solve the above-mentioned technical defects. The present invention first uses an adaptive grasping component, which can not only adaptively realize a matching larger clamping surface for commutators of different sizes, so as to improve the stable clamping and conveying of the commutator before and after loading, and realize automated press-fitting processing, but also can flexibly clamp and fix the commutator, ensuring stable clamping while avoiding the problem of clamping damage to the commutator; then, the eddy current sensor and the infrared ranging sensor are combined to perform secondary data collection on the rotating commutator and rotor, and the controller analyzes the data and generates a corresponding stop signal to realize automatic adjustment of the press-fitting angle value of the commutator and the rotor, and further improve the effect of automated press-fitting accuracy.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A press-fitting device suitable for commutator processing, comprising a press-fitting platform and a console installed on the press-fitting platform. A rotor fixing mechanism and a moving column are arranged on the press-fitting platform. The rotor fixing mechanism includes a rotating cylinder rotatably installed on the press-fitting platform, and an adaptive grasping component for grasping the commutator is arranged on the moving column.

[0008] The adaptive grasping component includes an annular mounting seat. Press-fitting blocks are symmetrically and slidably connected to both sides of the annular mounting seat, and a mounting block is fixedly connected to the bottom of the press-fitting block. A plurality of movable blocks are equidistantly and slidably connected to one side of the mounting block, and a U-shaped plate is slidably connected inside the movable block. A semi-circular clamping block is rotatably installed on the U-shaped plate, and two groups of auxiliary convex parts are fixedly connected to the semi-circular clamping block.

[0009] Preferably, a plurality of clamping plates are equidistantly and slidably installed on the annular outer wall of the rotating cylinder, and a limiting rod for sliding with the clamping plate is fixedly connected. A tension spring is fixedly connected between the clamping plate and the rotating cylinder. A servo motor I for driving the rotating cylinder to rotate is installed on the press-fitting platform through bolts, and a guiding inclined surface is opened at the top of one side of the clamping plate.

[0010] Preferably, a T-shaped ejector rod is slidably connected to the U-shaped plate, and a spring I is fixedly connected between the T-shaped ejector rod and the movable block. A reset guiding groove matching the T-shaped ejector rod is opened on the arc-shaped side wall of the semi-circular clamping block. An arc-shaped groove adapted to the semi-circular clamping block is opened on one side of the movable block, and a sealing gasket is arranged on the arc-shaped groove.

[0011] Preferably, a cavity communicating with the interiors of a plurality of movable blocks is opened inside the mounting block, and a spring II is fixedly connected between the movable block and the cavity.

[0012] Preferably, a turntable is rotatably connected to the top of the annular mounting seat, and two groups of arc-shaped guiding grooves are opened on the turntable. A guiding column sliding with the corresponding arc-shaped guiding groove is fixedly connected to the top of the press-fitting block, and an electric push rod is hinged between the turntable and the top of the annular mounting seat.

[0013] Preferably, a rotating seat is rotatably connected to the annular inner wall of the annular mounting seat, and a servo motor II is installed on the rotating seat through bolts. An L-shaped plate is fixedly connected between the output shaft end of the servo motor II and the annular mounting seat.

[0014] Preferably, a lifting plate slidably connected to the moving column is welded to the rotating seat. A lead screw threadedly connected to the lifting plate is rotatably connected to the moving column. A lifting motor for driving the lead screw to rotate is installed on the moving column through bolts. An electric slide table is fixedly installed on the top of the press-fitting platform, and the moving column is fixedly installed on the slide seat of the electric slide table.

[0015] Preferably, a fixed arc plate is fixedly connected to one side of the movable column, and a movable arc plate slidably connected to the movable column is arranged above the fixed arc plate, a fixing bolt that interferes with the movable arc plate is threadedly connected to the movable column, an indicator needle is fixedly installed on the movable arc plate, and a scale line is engraved on the top of the fixed arc plate.

[0016] Preferably, a commutator conveying platform and a rotor conveying platform are fixedly mounted on the top of the press-fitting platform.

[0017] The present invention also proposes a press-fitting method suitable for commutator processing, including the following contents: centering and placement processing of the rotor, adaptive fitting grabbing of the commutator, press-fitting process of the commutator and automatic unloading processing after press-fitting.

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

[0019] (1) The present invention first completes the grabbing of the commutator through two groups of press-fitting blocks on the annular mounting seat, and drives the commutator and the rotor to rotate during the press-fitting process. The servo motor 1 drives the commutator to rotate, and the servo motor 2 drives the rotor to rotate. The eddy current sensor installed on the movable arc plate detects the copper sheet on the commutator for the second time, the infrared distance sensor installed on the fixed arc plate detects the distance difference between the rotor and the fixed arc plate for the second time, and the controller in the control console analyzes the data and generates a corresponding control signal, so as to realize the automatic adjustment of the assembly angle value of the commutator and the rotor before press-fitting, and further improve the press-fitting accuracy; and the position adjustment of the movable arc plate realizes the adjustment of various press-fitting angles, thereby improving the application range of the device;

[0020] (2) The present invention promotes the movement of the installation block by the pressing block, so that the multiple semicircular clamping blocks are in contact with the outer wall of the commutator in turn. In this process, the mold plate and the movable block are pushed to move one by one and in turn, firstly, the multiple semicircular clamping blocks are adaptively formed into a larger clamping surface adapted to commutators of different sizes, so as to improve the stable clamping and conveying of the commutator before and after loading, without replacing the corresponding clamping structure, and further improving the application range of the device; then, the multiple semicircular clamping blocks are used to seal the arc groove side of the movable block one by one, so that the air in the cavity cannot be continuously discharged and is compressed, thereby limiting the movement of the multiple movable blocks, and playing an adaptive and flexible clamping role for commutators of different sizes, improving stability and further avoiding the problem of clamping damage to the commutator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings;

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

[0023] Figure 2 It is a schematic structural diagram of the mobile column of the present invention;

[0024] Figure 3 It is a schematic diagram of the disassembly of the annular mounting base and the rotating base of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the annular mounting base of the present invention;

[0026] Figure 5 It is a schematic diagram of the cooperation between the mounting block and the movable block of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the movable block of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the rotor fixing mechanism of the present invention Figure 1 ;

[0029] Figure 8 It is a schematic structural diagram of the rotor fixing mechanism of the present invention Figure 2 .

[0030] Legend description:

[0031] 1. Pressing platform; 11. Commutator conveying table; 12. Rotor conveying table;

[0032] 2. Rotor fixing mechanism; 21. Rotating cylinder; 22. Clamping plate; 23. Tension spring; 24. Servo motor 1;

[0033] 3. Moving column; 31. Rotating base; 32. Servo motor 2; 33. L-shaped plate; 34. Lifting plate; 35. Lead screw; 36. Lifting motor; 37. Electric slide table; 38. Fixed arc plate; 39. Movable arc plate;

[0034] 4. Adaptive grasping component; 41. Annular mounting base; 42. Pressing block; 43. Mounting block; 44. Movable block; 45. C-shaped plate; 46. Semi-circular clamping block; 47. T-shaped ejector rod; 48. Spring 1; 49. Reset guiding groove; 410. Spring 2; 411. Turntable; 412. Electric push rod. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: Please refer to Figure 1-Figure 4 , Figure 7 and Figure 8As shown, for the problem in the prior art that the fixed inner diameter structure is adopted for the press-fitting process of a commutator with only a single specific specification, the press-fitting process of multiple sizes cannot be realized, and it is difficult to realize the automatic press-fitting process, which reduces the press-fitting efficiency. The following solutions can be adopted to solve this problem:

[0037] In this embodiment, a press-fitting device suitable for commutator processing includes a press-fitting platform 1 and a console installed on the press-fitting platform 1. A rotor fixing mechanism 2 and a moving column 3 are arranged on the press-fitting platform 1. The rotor fixing mechanism 2 includes a rotating cylinder 21 rotatably installed on the press-fitting platform 1 for placing the rotor. An adaptive gripping component 4 for gripping the commutator is arranged on the moving column 3.

[0038] The adaptive gripping component 4 includes an annular mounting seat 41. Two press-fitting blocks 42 are symmetrically and slidably connected to both sides of the annular mounting seat 41. The bottom of the press-fitting block 42 is fixedly connected with a mounting block 43. The two press-fitting blocks 42 on the annular mounting seat 41 move relatively, and the commutator is clamped and gripped by combining with the mounting frame. A plurality of movable blocks 44 are equidistantly and slidably connected to one side of the mounting block 43. A U-shaped plate 45 is slidably connected inside the movable block 44. A semi-circular clamping block 46 is rotatably installed on the U-shaped plate 45, and two groups of auxiliary protrusion parts are fixedly connected to the semi-circular clamping block 46.

[0039] A plurality of clamping plates 22 are equidistantly and slidably installed on the annular outer wall of the rotating cylinder 21, and a limiting rod that slides with the clamping plate 22 is fixedly connected. The limiting rods are symmetrically arranged on both sides of the top of the clamping plate 22 to further increase the stability of the movement of the clamping plate 22. A tension spring 23 is fixedly connected between the clamping plate 22 and the rotating cylinder 21. The rotor is grabbed by the feeding manipulator, and one end of the rotor is inserted into the inside of the rotating cylinder 21 and located between the plurality of clamping plates 22. The plurality of clamping plates 22 and the corresponding tension springs 23 elastically center and clamp the placed rotor, so as to perform the press-fitting process on the commutator and the rotor.

[0040] And through the elastic centering clamping of the rotor by the clamping plate 22, the clamped commutator drives the press-fitted rotor to move upward, which can automatically complete the separation of the rotating cylinder 21 and the rotor and realize the automatic blanking process after press-fitting. A servo motor 1 24 for driving the rotating cylinder 21 to rotate is installed on the press-fitting platform 1 by bolts. A guiding inclined surface is opened at the top of one side of the clamping plate 22. Through the guiding inclined surface opened at the top of one side of the clamping plate 22, when the rotor is inserted, the plurality of clamping plates 22 move away from each other, causing the rotor shaft to be quickly inserted between the plurality of clamping plates 22 to realize the automatic feeding process of the rotor. The servo motor 1 24 drives the rotating cylinder 21 to rotate, and further causes the centered and clamped rotor to rotate.

[0041] The top of the annular mounting seat 41 is rotatably connected to a turntable 411, and two groups of arc-shaped guide grooves are provided on the turntable 411. The top of the press-fitting block 42 is fixedly connected to a guide column that slides with the corresponding arc-shaped guide groove. An electric push rod 412 is hinged between the turntable 411 and the top of the annular mounting seat 41. The movement of the piston rod of the electric push rod 412 causes the turntable 411 to rotate. The arc-shaped guide grooves on the turntable 411 guide the guide column, causing the two groups of press-fitting blocks 42 to move relative to each other, thereby realizing the clamping process of the commutator.

[0042] A rotating seat 31 is rotatably connected to the annular inner wall of the annular mounting seat 41. The rotating seat 31 is used for the later deflection of the annular mounting seat 41, thereby realizing the adjustment of the assembly angle between the commutator and the rotor, and a servo motor 32 is installed on the rotating seat 31 by bolts. An L-shaped plate 33 is fixedly connected between the output shaft end of the servo motor 32 and the annular mounting seat 41. The servo motor 32 drives the annular mounting seat 41 to rotate slowly via the L-shaped plate 33, thereby prompting the commutator to rotate synchronously.

[0043] A lifting plate 34 slidably connected to the moving column 3 is welded on the rotating seat 31, a screw rod 35 threadedly connected to the lifting plate 34 is rotatably connected to the moving column 3, a lifting motor 36 driving the screw rod 35 to rotate is installed on the moving column 3 through bolts, the lifting motor 36 drives the screw rod 35 to rotate, the screw rod 35 combines with the lifting plate 34 and the rotating seat 31 to drive the annular mounting seat 41 to move up and down, and is used to carry the commutator for an integrated processing process of loading, pressing and unloading;

[0044] An electric slide 37 is fixedly installed on the top of the press-fitting platform 1, and the movable column 3 is fixedly installed on the slide seat of the electric slide 37. The electric slide 37 combines with the movable column 3 to carry the annular mounting seat 41 to move to a horizontal position, thereby assisting the lifting and lowering of the annular mounting seat 41, thereby completing the loading, pressing and unloading processing of the commutator.

[0045] A fixed arc plate 38 is fixedly connected to one side of the moving column 3. An infrared distance sensor is installed on the arc inner end of the fixed arc plate 38 to measure the distance between the annular outer wall of the rotor and the fixed arc plate 38. When the rotor rotates, the infrared distance sensor measures the winding groove area on the rotor, causing the measurement data to become larger, and the rotor is stopped in combination with the control console;

[0046] A movable arc plate 39 slidably connected to the movable column 3 is arranged above the fixed arc plate 38. An eddy current sensor is installed on the arc inner end of the movable arc plate 39 to detect the copper sheet on the commutator. The commutator rotates so that the eddy current sensor cannot detect the copper sheet, and the commutator stops rotating in combination with the console. A fixing bolt that conflicts with the movable arc plate 39 is threadedly connected to the movable column 3.

[0047] According to the assembly angle value between the commutator and the rotor, the position of the movable arc plate 39 is adjusted until the angle value formed by the detection angle between the eddy current sensor and the copper sheet on the commutator and the measurement angle between the infrared ranging sensor and the rotor surface matches the assembly angle value, so as to realize the automatic adjustment of the assembly angle value before the commutator and the rotor are pressed, and further improve the pressing accuracy;

[0048] After that, the fixing bolt is rotated to fix the position of the movable arc plate 39. By adjusting the position of the movable arc plate 39, various press-fitting angles can be adjusted, thereby improving the application range of the device. An indicator needle is fixedly installed on the movable arc plate 39, and a scale line is engraved on the top of the fixed arc plate 38. During the movement of the movable arc plate 39, the position of the end of the indicator needle on the scale line can be observed to accurately control the assembly angle.

[0049] The electric slide 37 drives the moving column 3 to move until the commutator moves to the top of the rotor, and the lifting motor 36 drives the screw rod 35 to rotate in the positive direction, causing the commutator to move downward, until the commutator is at the height of the eddy current sensor, the servo motor 2 32 drives the annular mounting seat 41 to rotate slowly through the L-shaped plate 33, causing the commutator to rotate synchronously;

[0050] The copper sheet on the commutator is detected by the eddy current sensor on the movable arc plate 39, and the collected data obtained by the detection is transmitted to the controller in the console. When the eddy current sensor detects the copper sheet for the second time, the controller generates a control signal and controls the servo motor 2 32 to stop rotating. The servo motor 2 32 is stopped after the copper sheet is detected twice to avoid the phenomenon that the eddy current sensor can directly detect the copper sheet when the commutator is lowered. Because the detection data cannot accurately detect the data obtained by detecting the edge of one side of the copper sheet, it is difficult to accurately realize the press-fitting angle of the commutator.

[0051] The servo motor 1 24 drives the rotor to rotate in combination with the rotating cylinder 21, and detects the distance between the rotor surface and the fixed arc plate 38 through the infrared distance measuring sensor on the fixed arc plate 38, and transmits the collected data obtained by the detection to the controller in the console. The controller compares the collected data with the set data range. When the collected data is greater than the set data range for the second time, a control signal is generated to control the servo motor 1 24 to stop rotating;

[0052] By performing a secondary detection on the larger collected data and then stopping the rotation of the servo motor 24, the infrared ranging sensor can directly detect the phenomenon of collected data greater than the set data before the rotor rotates. Since the detection data cannot be accurate to whether the data is obtained by detecting the edge of one side of the winding groove, it is difficult to accurately achieve the rotor press-fitting angle. The annular mounting seat 41 carries the clamped commutator to move downward, and the press-fitting block 42 resists the top of the commutator, prompting the commutator to be press-fitted onto the rotor shaft.

[0053] At the top of the press-fitting platform 1, a commutator conveyor table 11 and a rotor conveyor table 12 are fixedly installed. The commutator conveyor table 11 conveys the commutators at intervals, and moves the press-fitted rotors to the rotor conveyor table 12 for automatic blanking processing.

[0054] Embodiment 2: Please refer to Figure 3-Figure 6 As shown, for the problem that it is difficult to stably prevent damage and clamp and convey commutators of different specifications, the following solutions can be adopted to solve it:

[0055] In this embodiment, the adaptive grasping component 4 includes an annular mounting seat 41. On both sides of the annular mounting seat 41, press-fitting blocks 42 are symmetrically and slidably connected. And the bottom of the press-fitting block 42 is fixedly connected with a mounting block 43. On one side of the mounting block 43, a plurality of movable blocks 44 are slidably connected at equal intervals. The movable blocks 44 are in sealed sliding connection with the mounting block 43. And inside the movable block 44, a U-shaped plate 45 is slidably connected. The movable block 44 is in sealed sliding connection with the U-shaped plate 45. On the U-shaped plate 45, a semi-circular clamping block 46 is rotatably mounted;

[0056] Through the sliding installation of the movable block 44 and the U-shaped plate 45, each semi-circular clamping block 46 can move independently. When a plurality of semi-circular clamping blocks 46 come into contact with the outer wall of the commutator in sequence, it causes a plurality of semi-circular clamping blocks 46 to adaptively form a larger clamping surface that fits the commutator of different sizes. While improving the stable clamping and conveying of the commutator before and after feeding, there is no need to replace the corresponding clamping structure, further improving the applicable range of the device. And two groups of auxiliary protrusion parts are fixedly connected to the semi-circular clamping block 46, which are used to increase the contact area between the semi-circular clamping block 46 and the commutator, and further improve the clamping stability.

[0057] A T-shaped ejector rod 47 is slidably connected to the U-shaped plate 45. And a first spring 48 is fixedly connected between the T-shaped ejector rod 47 and the movable block 44. After the auxiliary protrusion part on the semi-circular clamping block 46 contacts the commutator, it pushes the U-shaped plate 45 to move in the corresponding movable block 44 and compress the first spring 48 until the semi-circular clamping block 46 abuts against the movable block 44. Then it further pushes the movable block 44 to move inside the mounting block 43, and discharges part of the air in the inner cavity of the mounting block 43 through the other movable blocks 44 that are not in contact with the semi-circular clamping block 46 until the other semi-circular clamping blocks 46 come into contact with the outer wall of the commutator in sequence;

[0058] During the contact process, the other semicircular clamping blocks 46 first contact the outer wall of the commutator through the auxiliary protrusion on one side of the semicircular clamping block 46, so that the semicircular clamping block 46 rotates, so that the auxiliary protrusion on the other side contacts the commutator, further increasing the clamping range, and then successively pushes the shaped plate 45 and the movable block 44 to move, so that the multiple semicircular clamping blocks 46 all block the arc groove side of the movable block 44, and the air in the cavity cannot be continuously discharged and is compressed, thereby limiting the movement of the multiple movable blocks 44, and performing large-area adaptive flexible clamping on commutators of different sizes, improving stability while avoiding clamping damage to the commutator;

[0059] A reset guide groove 49 matching with the T-shaped push rod 47 is provided on the arc-shaped side wall of the semicircular clamp block 46, so that after the semicircular clamp block 46 is separated from the commutator, the sliding of the T-shaped push rod 47 in the reset guide groove 49 prompts the semicircular clamp block 46 to reset and rotate, so as to adaptively clamp the next commutator. An arc-shaped groove matching with the semicircular clamp block 46 is provided on one side of the movable block 44, and a sealing gasket is provided on the arc-shaped groove, so that after the semicircular clamp block 46 contacts the movable block 44, the gas in the cavity is prevented from being discharged through the movable block 44.

[0060] The interior of the mounting block 43 is provided with a cavity communicating with the interior of multiple movable blocks 44, and a second spring 410 is fixedly connected between the movable block 44 and the cavity. The movable block 44 moves inside the mounting block 43 and compresses the second spring 410, so that after the semicircular clamping block 46 is separated from the commutator, the movable block 44 returns to its original position.

[0061] Example 3: Please refer to Figure 1-Figure 8 As shown, the present invention also proposes a press-fitting method suitable for commutator processing, comprising the following contents:

[0062] Step 1: According to the assembly angle value between the commutator and the rotor, adjust the position of the movable arc plate 39, and observe the position of the end of the indicator needle on the scale line during the movement, until the angle value formed by the detection angle between the eddy current sensor and the copper sheet on the commutator and the measurement angle between the infrared ranging sensor and the rotor surface matches the assembly angle value, and then turn the fixing bolt to fix the position of the movable arc plate 39;

[0063] Step 2: Centering and placing of the rotor, specifically as follows: grab the rotor by the loading manipulator, and insert one end of the rotor into the rotating cylinder 21, and through the guiding inclined surface on the top of one side of the clamping plate 22, the multiple clamping plates 22 are urged to move apart, so that the rotor shaft is quickly inserted between the multiple clamping plates 22, and the multiple clamping plates 22 are combined with the corresponding tension springs 23 to elastically center and clamp the placed rotor;

[0064] Step 3: Adaptive fitting grabbing of the commutator, the specific contents are as follows: the commutator conveying table 11 conveys the commutator in intervals, the controller in the control console moves the annular mounting seat 41 to the top of the corresponding commutator through the electric slide 37 in combination with the moving column 3, the lifting motor 36 drives the screw rod 35 to rotate, the screw rod 35 combines with the lifting plate 34 and the rotating seat 31 to drive the annular mounting seat 41 to move downward, the piston rod of the electric push rod 412 moves to cause the turntable 411 to rotate, and the arc-shaped guide groove on the turntable 411 guides the guide column, causing the two groups of press-fitting blocks 42 to move relative to each other, so that a plurality of semicircular clamping blocks 46 contact the annular outer wall of the commutator;

[0065] After the auxiliary protrusions on one set of semicircular clamping blocks 46 come into contact with the commutator, the shaped plate 45 is pushed to compress the spring 1 48 in the corresponding movable block 44 until the semicircular clamping block 46 contacts the movable block 44, thereby pushing the movable block 44 to move inside the mounting block 43 and compressing the spring 2 410, so that part of the air in the cavity of the mounting block 43 is discharged through the remaining movable blocks 44 until the remaining semicircular clamping blocks 46 come into contact with the outer wall of the commutator in turn, and during the contact process, the auxiliary protrusions on one side of the semicircular clamping block 46 are used to compress the spring 1 48. The protrusion first contacts the outer wall of the commutator, prompting the semicircular clamping block 46 to rotate, so that the auxiliary protrusion on the other side contacts the commutator, further increasing the clamping range, and then successively pushing the shaped plate 45 and the movable block 44 to move, prompting multiple semicircular clamping blocks 46 to seal the arc groove side of the movable block 44, so that the air in the cavity cannot be continuously discharged and is compressed, thereby limiting the movement of multiple movable blocks 44, and performing large-area adaptive flexible clamping on commutators of different sizes, improving stability while avoiding clamping damage to the commutator;

[0066] Step 4: The pressing process of the commutator, the specific contents are as follows: the lifting motor 36 drives the screw rod 35 to rotate in the opposite direction, driving the clamped commutator to move upward, the electric slide 37 drives the moving column 3 to reset until the commutator moves to the top of the rotor, the lifting motor 36 drives the screw rod 35 to rotate forward again, causing the commutator to move downward, until the commutator is at the height of the eddy current sensor, the servo motor 2 32 drives the annular mounting seat 41 to rotate slowly through the L-shaped plate 33, causing the commutator to rotate synchronously, the copper sheet on the commutator is detected by the eddy current sensor on the movable arc plate 39, and the collected data obtained by the detection is transmitted to the controller in the console, when the eddy current sensor detects the copper sheet for the second time, the controller generates a control signal and controls the servo motor 2 32 to stop rotating;

[0067] The servo motor 24 is combined with the rotating cylinder 21 to drive the rotor to rotate. The distance between the rotor surface and the fixed arc plate 38 is detected by the infrared distance measuring sensor on the fixed arc plate 38, and the collected data obtained by the detection is transmitted to the controller in the control console. The controller compares the collected data with the set data range. When the collected data is greater than the set data range for the second time, a control signal is generated to control the servo motor 24 to stop rotating, and the control of the assembly angle value between the commutator and the rotor is completed. The annular mounting seat 41 carries the clamped commutator to move downward, and the commutator is pressed onto the rotor shaft through the resistance of the press-fitting block 42 to the top of the commutator.

[0068] Step 5: Automatic unloading after pressing, the specific contents are as follows: After the pressing is completed, the screw 35 rotates in the opposite direction to make the annular mounting seat 41 move upward, and the elastic centering clamping of the rotor by the clamping plate 22 causes the clamped commutator to carry the pressed rotor to move upward, and the moving column 3 is moved horizontally by the electric slide 37 to move the pressed rotor to the rotor conveying platform 12 for automatic unloading. The loading robot grabs the rotor for loading, and then the servo motor 24 carries the annular mounting seat 41 to reset and rotate, and the next commutator is grabbed and pressed.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A press-fitting device suitable for commutator processing, comprising a press-fitting platform (1), and a control console installed on the press-fitting platform (1), characterized in that: A rotor fixing mechanism (2) and a moving column (3) are arranged on the press-fitting platform (1). The rotor fixing mechanism (2) includes a rotating cylinder (21) rotatably mounted on the press-fitting platform (1). An adaptive grasping component (4) for grasping the commutator is arranged on the moving column (3). The adaptive grasping component (4) includes an annular mounting seat (41). Press-fitting blocks (42) are symmetrically and slidably connected to both sides of the annular mounting seat (41). An installation block (43) is fixedly connected to the bottom of the press-fitting block (42). A plurality of movable blocks (44) are equidistantly and slidably connected to one side of the installation block (43). A U-shaped plate (45) is slidably connected inside the movable block (44). A semi-circular clamping block (46) is rotatably mounted on the U-shaped plate (45). Two groups of auxiliary convex parts are fixedly connected to the semi-circular clamping block (46).

2. A press-fitting device suitable for commutator processing according to claim 1, characterized in that: A plurality of clamping plates (22) are equidistantly and slidably mounted on the annular outer wall of the rotating cylinder (21). A limiting rod for sliding with the clamping plate (22) is fixedly connected. A tension spring (23) is fixedly connected between the clamping plate (22) and the rotating cylinder (21). A servo motor one (24) for driving the rotation of the rotating cylinder (21) is bolted to the press-fitting platform (1). A guiding inclined surface is provided at the top of one side of the clamping plate (22).

3. The press-fitting equipment suitable for commutator processing according to claim 1, characterized in that: A T-shaped ejector rod (47) is slidably connected to the U-shaped plate (45). A spring one (48) is fixedly connected between the T-shaped ejector rod (47) and the movable block (44). A reset guiding groove (49) matching the T-shaped ejector rod (47) is provided on the arc-shaped side wall of the semi-circular clamping block (46). An arc-shaped groove adapted to the semi-circular clamping block (46) is provided on one side of the movable block (44), and a sealing gasket is provided on the arc-shaped groove.

4. A press-fitting device suitable for commutator processing according to claim 3, characterized in that: A cavity communicating with the inside of a plurality of movable blocks (44) is provided inside the installation block (43). A spring two (410) is fixedly connected between the movable block (44) and the cavity.

5. The press-fitting equipment suitable for commutator processing according to claim 1, characterized in that: A turntable (411) is rotatably connected to the top of the annular mounting seat (41). Two groups of arc-shaped guiding grooves are provided on the turntable (411). A guiding column slidably connected to the corresponding arc-shaped guiding groove is fixedly connected to the top of the press-fitting block (42). An electric push rod (412) is hinged between the turntable (411) and the top of the annular mounting seat (41).

6. The press-fitting equipment suitable for commutator processing according to claim 1, characterized in that: A rotating seat (31) is rotatably connected to the annular inner wall of the annular mounting seat (41). A servo motor two (32) is bolted to the rotating seat (31). An L-shaped plate (33) is fixedly connected between the output shaft end of the servo motor two (32) and the annular mounting seat (41).

7. A press-fitting device suitable for commutator processing according to claim 6, characterized in that: A lifting plate (34) slidably connected to the moving column (3) is welded to the rotating seat (31). A lead screw (35) threadedly connected to the lifting plate (34) is rotatably connected to the moving column (3). A lifting motor (36) for driving the rotation of the lead screw (35) is bolted to the moving column (3). An electric slide table (37) is fixedly installed on the top of the press-fitting platform (1). The moving column (3) is fixedly installed on the slide seat of the electric slide table (37).

8. The press-fitting equipment suitable for commutator processing according to claim 1, characterized in that: A fixed arc plate (38) is fixedly connected to one side of the movable column (3), and a movable arc plate (39) slidably connected to the movable column (3) is arranged above the fixed arc plate (38), a fixing bolt that contacts the movable arc plate (39) is threadedly connected to the movable column (3), an indicator needle is fixedly installed on the movable arc plate (39), and a scale line is engraved on the top of the fixed arc plate (38).

9. The press-fitting equipment suitable for commutator processing according to claim 1, characterized in that: A commutator conveying platform (11) and a rotor conveying platform (12) are fixedly mounted on the top of the press-fitting platform (1).

10. A press-fitting method suitable for commutator processing, characterized in that: Includes the following: The centering and placement of the rotor, the adaptive fitting grabbing of the commutator, the press-fitting process of the commutator and the automatic unloading after press-fitting.

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