A servo press-based motor spiral armature lamination press-fitting device

Abstract

The application discloses a motor spiral armature lamination press-fitting device based on a servo press, and belongs to the technical field of motor manufacturing equipment, which comprises a press-fitting machine, a press-fitting unit rotatably connected in the press-fitting machine, a press head part arranged along a press-fitting direction, a glue applying unit connected to the press-fitting unit along the press-fitting direction, and an output end of the glue applying unit penetrating through the press head part, and an adjusting unit rotatably connected to the surface of the glue applying unit. In the application, the press-fitting unit is started to drive the glue applying unit and the press head part to move downward, the press head part is self-adapted to the surface of the armature lamination and exerts pressure; meanwhile, the glue applying unit works synchronously with the press-fitting action, glue is applied to the surface of the lamination through the glue outlet, and the second motor drives the positioning core to rotate the armature lamination, spiral assembly of the armature lamination and uniform glue application are realized, the integration of the press-fitting and the glue applying procedures is carried out, the uniformity of the glue application is ensured, and the interlaminar bonding strength is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor manufacturing equipment, in particular to a motor spiral armature lamination pressing device based on a servo press. BACKGROUND

[0002] The control motor for automobile steering wheel is the core executive component of the vehicle steering system, and its performance stability directly determines the accuracy and safety of steering control. The armature, as the power core of the control motor, its lamination assembly quality is the key factor affecting the output torque and smooth running of the motor. The armature lamination needs to be pressed to form a regular lamination group, and some high-performance control motors require the lamination to be arranged in a spiral manner to optimize the magnetic circuit distribution and reduce the operating noise.

[0003] The existing motor armature lamination pressing is mostly completed by traditional servo presses and pressing mechanisms. However, the existing technology still has the following defects when assembling the spiral armature lamination of the automobile steering wheel control motor: the existing device can only realize axial linear pressing and cannot meet the requirements of rotating and precise lamination of the spiral armature lamination; and the pressure adjustment of the existing pressing device is mostly rough adjustment, which is prone to cause lamination deformation due to excessive pressing force or lamination not closely bonded due to insufficient pressing force during pressing. Therefore, it is necessary to provide a motor spiral armature lamination pressing device based on a servo press to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the embodiments of the present application is to provide a motor spiral armature lamination pressing device based on a servo press to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A motor spiral armature lamination pressing device based on a servo press, comprising:

[0007] a pressing machine;

[0008] a pressing unit rotatably connected in the pressing machine, the pressing unit comprising a pressing head portion arranged in the pressing direction, the pressing head portion being used for directly abutting against the armature lamination and applying pressure to realize axial pressing of the armature lamination;

[0009] a gluing unit connected to the pressing unit in the pressing direction, an output end portion of the gluing unit penetrating through the pressing head portion, used for moving synchronously with the pressing action of the pressing head portion, and cooperating with the pressing unit to complete automatic gluing between the armature lamination layers;

[0010] an adjusting unit rotatably connected to the surface of the gluing unit, used for adjusting the pressing stroke of the pressing unit and the pressure value of the pressing head portion acting on the armature lamination by rotating itself.

[0011] As a preferred technical scheme of the present application, the pressing unit comprises: a support seat rotatably connected to the pressing machine; a rotating table connected to the upper side of the support seat, the upper surface of the rotating table rotatably having four groups of positioning cores, the bottom of the positioning core being connected with a support ring; a first motor installed inside the pressing machine, the output end of the first motor being connected to the end of the support seat; a second motor installed on the side of the rotating table, the end of the positioning core being connected to the output end of the second motor; a lead screw rotatably connected to the pressing machine, the glue applying unit being threadedly connected to the surface of the lead screw, the lower side of the glue applying unit being connected with a pressing head; and a third motor installed on the upper side of the pressing machine, the upper end of the lead screw being connected to the output end of the third motor.

[0012] As a preferred technical scheme of the present application, the glue applying unit comprises: a glue applying box threadedly connected to the lead screw, the upper side being installed with a glue inlet plug; a glue inlet pipe communicated to the lower side of the glue applying box through a one-way valve, the inside being slidably connected with a sealable first piston head, the first piston head being connected to the end inner wall of the glue inlet pipe through a first spring; a glue outlet cylinder slidably connected to the inside of the lower side of the glue inlet pipe, the upper end being connected with the first piston head, the upper end inside of the glue outlet cylinder being installed with a sealing unit, the sealing unit being used for sealing the glue passing through the glue inlet pipe and the glue outlet cylinder.

[0013] As a preferred technical scheme of the present application, the sealing unit comprises: an embedded groove opened in the inside of the glue outlet cylinder; a baffle rotatably connected to the inside of the embedded groove, the side surface being opened with an arc surface; and a sealing piece slidably connected to the inside of the embedded groove, one end being connected to the side surface of the baffle, the other end being connected to the inner wall of the embedded groove through a second spring.

[0014] As a preferred technical scheme of the present application, the pressing head comprises: a pressing head frame fixed to the lower end surface of the glue outlet cylinder; an open slot opened on the pressing head frame, the inside of the open slot being rotatably connected with two groups of rotating frames; and a pressing head rotatably connected to the end of the rotating frame, the two groups of pressing heads being connected through elastic ropes.

[0015] As a preferred technical scheme of the present application, the adjusting unit comprises: an adjusting cylinder threadedly connected to the surface of the glue outlet cylinder, the outer surface of the adjusting cylinder being opened with a convex pattern; a pressure sensor fixed to the upper end of the adjusting cylinder; and a displacement sensor connected to the lower end of the glue inlet pipe, the pressure sensor and the displacement sensor being electrically connected with the controller on the pressing machine.

[0016] As a preferred technical scheme of the present application, the side of the press fitting machine is provided with a feeding unit for feeding the armature laminations, the feeding unit comprising: a support plate fixed to the side of the press fitting machine; a lamination seat slidably connected to the surface of the support plate, the lamination seat being provided with a lamination groove for placing the armature laminations; a pneumatic cylinder installed on the upper side of the support plate, the lamination seat being connected to the output end of the pneumatic cylinder; a lamination seat groove provided on the surface of the support plate and in communication with the lamination groove on the upper side; a push frame rotatably connected to the lamination seat; and a sliding groove provided on the lamination groove, one end of the sliding groove being provided with a magnet, and the lower end of the push frame being slidably connected to the inside of the sliding groove.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. The present application realizes the precise spiral assembly of the armature laminations through the coordinated rotation of the rotating table and the positioning core in the press fitting unit, solving the problem that the existing device cannot adapt to the spiral armature lamination assembly.

[0019] 2. The present application sets a glue applying unit matched with the press fitting unit, automatically outputs glue by the press fitting pressure, realizes the integration of the press fitting and glue applying processes, simplifies the production process, ensures the uniformity of glue applying, and enhances the interlaminar bonding strength.

[0020] 3. The present application can precisely adjust the press fitting stroke and pressure value by means of the adjusting structure of the adjusting cylinder and the feedback mechanism of the pressure sensor, adapt to the assembly requirements of laminations of different specifications, and avoid the problems of lamination deformation or loose fitting.

[0021] To make the structure characteristics and effects of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a motor spiral armature lamination press fitting device based on a servo press provided by the present application.

[0023] Figure 2 A schematic diagram of the structure of a press fitting unit of a motor spiral armature lamination press fitting device based on a servo press provided by the present application.

[0024] Figure 3 A schematic diagram of the structure of a feeding unit of a motor spiral armature lamination press fitting device based on a servo press provided by the present application.

[0025] Figure 4 A Figure 3 A partial enlarged view of part A.

[0026] Figure 5A structure schematic view of a pressure head part of a motor helical armature lamination press-fitting device based on a servo press is provided.

[0027] Figure 6 A structure schematic view of a glue outlet cylinder of a motor helical armature lamination press-fitting device based on a servo press is provided.

[0028] Figure 7 For Figure 6 A local enlarged view of the middle B part.

[0029] Reference signs: 1, press-fitting machine; 11, controller; 12, discharge port; 13, heat dissipation port; 2, press-fitting unit; 21, support seat; 22, rotating table; 23, positioning core; 24, support ring; 25, first motor; 26, second motor; 27, screw rod; 28, pressure head part; 281, pressure head frame; 282, open slot; 283, rotating frame; 284, pressure head; 285, elastic rope; 29, third motor; 3, glue coating unit; 31, glue coating box; 311, glue inlet plug; 32, glue inlet pipe; 33, first piston head; 34, glue outlet cylinder; 35, first spring; 36, sealing unit; 361, embedded groove; 362, baffle; 363, arc surface; 364, sealing member; 365, second spring; 4, adjusting unit; 41, adjusting cylinder; 411, convex pattern; 42, pressure sensor; 43, displacement sensor; 5, feeding unit; 51, support plate; 52, lamination seat; 521, lamination slot; 53, air cylinder; 54, lamination seat slot; 55, pushing frame; 56, sliding slot; 57, magnet. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0031] The specific implementation of the present application is described in detail below in combination with specific examples.

[0032] Referring to Figures 1-7 A motor helical armature lamination press-fitting device based on a servo press comprises:

[0033] A press-fitting machine 1;

[0034] A press-fitting unit 2 is rotationally connected in the press-fitting machine 1, and the press-fitting unit 2 comprises a pressure head part 28 arranged along a press-fitting direction, which is used to directly abut and apply pressure to the armature lamination, so as to realize axial press-fitting of the armature lamination;

[0035] A gluing unit 3 is connected to the pressing unit 2 in the pressing direction, and an output end of the gluing unit 3 penetrates the pressing head 28 and is used to move synchronously with the pressing action of the pressing head 28 to cooperate with the pressing unit 2 to complete automatic gluing between the armature sheet layers.

[0036] An adjusting unit 4 is rotationally connected to the surface of the gluing unit 3 and is used to adjust the pressing stroke of the pressing unit 2 and the pressure value of the pressing head 28 acting on the armature sheet through rotation of the adjusting unit 4.

[0037] In an embodiment of the present application, as shown in Figure 1 and Figure 2 The pressing unit 2 comprises:

[0038] A support base 21 is rotationally connected to the pressing machine 1;

[0039] A rotating table 22 is connected to the upper side of the support base 21, and four groups of positioning cores 23 are rotationally arranged on the upper surface of the rotating table 22, and the bottom of each positioning core 23 is connected with a support ring 24;

[0040] A first motor 25 is installed inside the pressing machine 1, and the output end of the first motor 25 is connected to the end of the support base 21;

[0041] A second motor 26 is installed on the side of the rotating table 22, and the end of each positioning core 23 is connected to the output end of the second motor 26; a lead screw 27 is rotationally connected to the pressing machine 1, the gluing unit 3 is threadedly connected to the surface of the lead screw 27, and the lower side of the gluing unit 3 is connected with a pressing head 28;

[0042] A third motor 29 is installed on the upper side of the pressing machine 1, and the upper end of the lead screw 27 is connected to the output end of the third motor 29.

[0043] By adopting the above technical scheme, when the armature sheet is pressed, the armature sheet is guided into the positioning core 23 close to the feeding station through the feeding unit 5, and the support ring 24 arranged at the bottom of the positioning core 23 can stably support the armature sheet, effectively reducing the difficulty of taking out the armature sheet after pressing, and improving the convenience of discharging.

[0044] The first motor 25 is started, the output end of the first motor 25 can drive the support base 21 to rotate the rotating table 22 as a whole, realize switching of the four groups of positioning cores 23 between the pressing station, the feeding station, the discharging station and the waiting processing station, greatly improve the continuous operation efficiency of the device, further, the side of the pressing machine 1 close to the discharging station is provided with a discharging port 12; the pressing machine 1 can be additionally provided with a drying station, and the drying station is provided with a hot air blower, so as to facilitate rapid drying of the armature sheet after gluing.

[0045] After a piece of armature lamination is pressed, the second motor 26 is started, the second motor 26 can directly drive the positioning core 23 to rotate relative to the rotating table 22, so that the armature lamination on the positioning core 23 can be accurately positioned, the coaxial degree requirement in the lamination pressing process is ensured, and finally the spiral accurate assembly of the armature lamination is realized.

[0046] When the third motor 29 drives the screw rod 27 to rotate, since the gluing unit 3 is threadedly connected with the screw rod 27, and the gluing unit 3 is fixedly connected with the pressing head 28, the pressing head 28 can be stably lifted along the pressing direction, so that stable pressing force is provided for the armature lamination pressing.

[0047] In an embodiment of the present application, as shown in Figure 4 and Figure 5 the gluing unit 3 comprises:

[0048] a gluing box 31, which is threadedly connected with the screw rod 27, and has a glue inlet plug 311 installed on the upper side;

[0049] a glue inlet pipe 32, which is communicated with the lower side of the gluing box 31 through a one-way valve, and has a sealable first piston head 33 slidably connected in the inside, the first piston head 33 being connected with the end inner wall of the glue inlet pipe 32 through a first spring 35;

[0050] a glue outlet cylinder 34, which is slidably connected in the inside of the lower side of the glue inlet pipe 32, and has a sealing unit 36 installed in the inside of the upper end, the sealing unit 36 being used for sealing the glue passing through the glue inlet pipe 32 and the glue outlet cylinder 34, the sealing unit 36 comprising: an embedded groove 361, which is arranged in the inside of the glue outlet cylinder 34; a baffle 362, which is rotatably connected in the inside of the embedded groove 361, and has an arc surface 363 arranged on the side face; and a sealing piece 364, which is slidably connected in the inside of the embedded groove 361, and has one end connected with the side face of the baffle 362, and the other end connected with the inner wall of the embedded groove 361 through a second spring 365.

[0051] By adopting the above technical scheme, before the gluing operation, the glue inlet plug 311 can be opened to inject a certain amount of glue into the gluing box 31. When the third motor 29 drives the screw rod 27 to rotate to drive the gluing box 31 to move downward, the gluing box 31 drives the pressing head 28 to move downward through the glue inlet pipe 32 and the glue outlet cylinder 34, until the pressing head 28 contacts the surface of the uppermost group of armature laminations.

[0052] With the pressure assembly action continuing, the glue outlet cylinder 34 is slid upward relative to the glue inlet pipe 32 by the resistance force of the armature laminations, and in turn pushes the first piston head 33 to move upward along the inside of the glue inlet pipe 32 and compresses the first spring 35. In this process, the upward movement of the first piston head 33 increases the pressure inside the glue inlet pipe 32, so that the arc surfaces 363 push the sealing members 364 to slide in the embedded grooves 361 and compress the second springs 365 inside the embedded grooves 361 under the action of high pressure. At this time, the glue flow channels are formed between the two groups of baffle plates 362, and the glue inside the glue inlet pipe 32 flows into the glue outlet cylinder 34 through the glue flow channels under the action of high pressure, and finally is applied to the surface of the armature laminations through the output end of the glue outlet cylinder 34.

[0053] In this process, the second motor 26 of the pressure assembly station is started to rotate the group of positioning cores 23 and the armature laminations on the surface of the positioning cores 23 by a certain angle, so that the spiral assembly of the armature laminations can be realized, and the glue can be uniformly applied to the surface of the armature laminations during the rotation.

[0054] When the single pressure assembly and glue application are completed, the third motor 29 drives the screw 27 in the reverse direction to move the glue application box 31 upward in the reverse direction of the pressure assembly, and the glue application box 31 synchronously drives the pressure head 28 to separate from the surface of the armature laminations through the glue inlet pipe 32 and the glue outlet cylinder 34. At this time, the resistance force acting on the pressure head 28 disappears, the elastic potential energy of the compressed first spring 35 is released to push the first piston head 33 to reset downward along the inside of the glue inlet pipe 32, and at this time, the two groups of baffle plates 362 approach each other under the action of the elastic force of the second spring 365 to close the glue flow channels formed between the two groups of arc surfaces 363, so as to realize the sealing cutoff of the glue and avoid the situation that the glue drips during the resetting process of the glue application unit. When the first piston head 33 slides downward along the inside of the glue inlet pipe 32, the glue inside the glue application box 31 enters the inside of the glue inlet pipe 32 through the one-way valve at the upper end of the glue inlet pipe 32. The above working process is sequentially cycled to realize the continuous spiral pressure assembly and glue application of the armature laminations.

[0055] Further, the glue application box 31 and the pressure head 28 are each installed with three groups, and the inner wall of the pressure assembly machine 1 is provided with guide grooves for limiting the glue application box 31, so as to improve the stability of the glue application box 31 during the lifting.

[0056] In an embodiment of the present application, as shown in Figure 5 the pressure head 28 comprises:

[0057] a pressure head frame 281 fixed to the lower end surface of the glue outlet cylinder 34;

[0058] an open groove 282 provided on the pressure head frame 281, and two groups of rotating frames 283 are rotatably connected inside the open groove 282;

[0059] The pressing heads 284 are rotatably connected to the ends of the rotating frame 283, and the two groups of pressing heads 284 are connected by elastic ropes 285.

[0060] By adopting the above technical scheme, when the pressing head 28 performs the pressing action by moving downward with the glue applying unit 3, the pressing heads 284 first contact the upper surfaces of the armature laminations, and the two groups of pressing heads 284 can adaptively adjust the fitting angle according to the flatness of the surfaces of the armature laminations by virtue of the rotating cooperation between the rotating frame 283 and the pressing head frame 281, so as to ensure that the pressing heads 284 form full and close contact with the surfaces of the laminations and avoid deformation of the laminations caused by uneven local stress. At the same time, the elastic ropes 285 connected between the two groups of pressing heads 284 can provide continuous pre-tightening tension, so that the pressing heads 284 are always tightly attached to the surfaces of the laminations, further ensuring the uniformity of the pressing force transmission. The elastic property of the elastic ropes 285 can also play a buffering role in the pressing process, and the elastic ropes 285 can absorb part of the impact force through deformation, so as to avoid rigid damage to the armature laminations caused by instantaneous contact and improve the stability of the pressing quality.

[0061] In the process of rotating the armature laminations with the positioning core 23 to realize spiral assembly, the pressing heads 284 rotate on the surfaces of the armature laminations, and at this time, the pressing heads 284 can uniformly apply glue to the upper surfaces of the armature laminations, thereby ensuring the uniformity of the glue between the armature laminations. Further, the lower end surface of the pressing head 284 is attached with a wear-resistant rubber layer, which can increase the contact area between the pressing head 284 and the armature laminations, and at the same time, can reduce the wear in the pressing process and prolong the service life of the pressing head 284.

[0062] In an embodiment of the present application, as shown in Figure 5 The adjusting unit 4 comprises:

[0063] The adjusting cylinder 41 is threadedly connected to the surface of the glue outlet cylinder 34, and the outer surface of the adjusting cylinder 41 is provided with a convex pattern 411;

[0064] The pressure sensor 42 is fixed to the upper end of the adjusting cylinder 41;

[0065] The displacement sensor 43 is connected to the lower end of the glue inlet pipe 32, and the pressure sensor 42 and the displacement sensor 43 are electrically connected to the controller 11 of the pressing machine 1.

[0066] By adopting the above technical scheme, when the armature laminations are pressed, the glue inlet pipe 32 drives the displacement sensor 43 at the lower end thereof to synchronously slide downward, and the displacement sensor 43 can accurately detect the displacement amount of the pressing head 28 driven by the glue applying unit 3, i.e., the pressing stroke data, which is also synchronously fed back to the controller 11.

[0067] When the pressure head 28 contacts the armature lamination, the glue outlet cylinder 34 slides upward in the inside of the glue inlet pipe 32 under the abutting force of the armature lamination, at this time, the glue outlet cylinder 34 will drive the pressure sensor 42 at the upper end thereof to slide upward synchronously until the pressure sensor 42 contacts the displacement sensor 43 at the lower end of the glue inlet pipe 32, at this time, the pressure sensor 42 transmits the collected data to the controller 11, and the controller 11 controls the third motor 29 to be closed, so as to avoid that the pressure head 28 excessively extrudes the armature lamination, and the armature lamination is damaged due to deformation.

[0068] The operator can increase the hand friction force by means of the convex patterns 411 on the outer surface of the adjusting cylinder 41, conveniently rotate the adjusting cylinder 41, realize the lifting movement of the adjusting cylinder 41 along the axial direction of the glue outlet cylinder 34 by means of the threaded cooperation between the adjusting cylinder 41 and the glue outlet cylinder 34, and then adjust the initial installation height of the pressure sensor 42, and complete the adjustment of the press-fit pressure value. Specifically, the distance between the pressure sensor 42 and the displacement sensor 43 is farther, and the press-fit pressure value of the pressure head 28 to the armature lamination is greater, by rotating the adjusting cylinder 41 downward.

[0069] In an embodiment of the present application, as shown in Figure 3 and Figure 4 The side surface of the press-fit machine 1 is provided with an upper feeding unit 5 for feeding the armature lamination, and the upper feeding unit 5 comprises:

[0070] A supporting plate 51 is fixed to the side surface of the press-fit machine 1;

[0071] An armature lamination seat 52 is slidingly connected to the surface of the supporting plate 51, and the armature lamination seat 52 is provided with an armature lamination groove 521 for placing the armature lamination;

[0072] A pneumatic cylinder 53 is installed on the upper side of the supporting plate 51, and the armature lamination seat 52 is connected to the output end of the pneumatic cylinder 53;

[0073] An armature lamination seat groove 54 is formed on the surface of the supporting plate 51, and the upper side thereof is communicated with the armature lamination groove 521;

[0074] A pushing frame 55 is rotatably connected to the armature lamination seat 52;

[0075] A sliding groove 56 is formed on the armature lamination groove 521, one end of the sliding groove 56 is provided with a magnet 57, and the lower end of the pushing frame 55 is slidingly connected to the inside of the sliding groove 56.

[0076] By adopting the above technical solution, when pressing the armature lamination, the armature lamination to be pressed is first placed inside the lamination groove 521, and the cylinder 53 is turned on, so that the cylinder 53 drives the lamination seat 52 to slide back and forth on the support plate 51. When the lamination seat 52 slides closer to the cylinder 53, the lamination seat 52 will drive the armature lamination to slide as a whole through the lamination seat groove 54. At the same time, the lamination seat 52 drives the pusher 55 on its side to slide inside the slide groove 56. When the pusher 55 slides to the end of the slide groove 56, the pusher 55 will be flipped to the vertical direction under the magnetic attraction of the magnet 57.

[0077] Subsequently, when the stacking seat 52 slides away from the cylinder 53, the stacking seat 52 will drive the pusher 55 to slide synchronously until the pusher 55 contacts the side of the armature stack. Thus, the bottom set of armature stacks in the stacking slot 521 will slide inside the stacking seat slot 54 under the push of the pusher 55 until the pusher 55 pushes the set of armature stacks onto the positioning core 23 of the loading station, realizing the automated loading of the armature stacks.

[0078] The working principle of this invention is as follows: First, the armature laminations to be pressed are placed inside the lamination slot 521. The cylinder 53 drives the lamination seat 52 to slide, and with the cooperation of the push frame 55 and the magnet 57, the armature laminations are pushed onto the positioning core 23 of the loading station. Then, the first motor 25 drives the support seat 21 to rotate the rotary table 22, switching the positioning core 23 carrying the armature laminations to the pressing station. During the pressing stage, the third motor 29 drives the lead screw 27 to rotate, causing the glue application unit 3 and the pressing head 28 to move down. The pressing head 28 adaptively fits the surface of the armature laminations and applies pressure. At the same time, the glue application unit 3 works synchronously with the pressing action. After the glue dispensing cylinder 34 is resisted, it pushes the first piston head 33 to open the glue channel. The glue is applied to the surface of the laminations through the glue dispensing cylinder 34, and the second motor 26 drives the positioning core 23 to rotate the armature laminations, realizing the spiral assembly of the armature laminations and the uniform application of glue. Simultaneously, the displacement sensor 43 detects the pressing stroke, and the pressure sensor 42 collects the pressing pressure. The data is fed back to the controller 11 for precise control. The operator can adjust the pressing pressure value by rotating the adjusting cylinder 41. After a single pressing and gluing operation is completed, the sealing unit 36 ​​closes the glue flow channel to prevent glue leakage. The first motor 25 continues to drive the rotary table 22 to switch the pressed stack to the discharge port 12. This cycle is repeated to achieve continuous and automated spiral pressing and gluing operation of the armature stack.

[0079] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, or electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A motor spiral armature lamination pressing device based on a servo press, characterized in that, include: Press fitting machine (1); The pressing unit (2) is rotatably connected inside the pressing machine (1). The pressing unit (2) includes a pressing head (28) arranged along the pressing direction. The pressing head (28) is used to directly contact the armature laminations and apply pressure to achieve axial pressing of the armature laminations. The glue application unit (3) is connected to the pressing unit (2) along the pressing direction. The output end of the glue application unit (3) passes through the pressing head (28) and is used to move synchronously with the pressing action of the pressing head (28) to cooperate with the pressing unit (2) to complete the automatic glue application between the armature lamination layers. The adjustment unit (4) is rotatably connected to the surface of the glue application unit (3) and is used to adjust the pressing stroke of the pressing unit (2) and the pressure value of the pressing head (28) acting on the armature lamination by itself through its own rotation. The pressing unit (2) includes: The support base (21) is rotatably connected to the press machine (1); A rotating table (22) is connected to the upper side of the support base (21). Four sets of positioning cores (23) are rotatably mounted on the upper surface of the rotating table (22). A support ring (24) is connected to the bottom of the positioning core (23). The first motor (25) is installed inside the press machine (1), and the output end of the first motor (25) is connected to the end of the support base (21); The second motor (26) is installed on the side of the rotary table (22), and the end of the positioning core (23) is connected to the output end of the second motor (26); the lead screw (27) is rotatably connected to the press machine (1), and the glue application unit (3) is threadedly connected to the surface of the lead screw (27), and the lower side of the glue application unit (3) is connected to the pressure head (28). The third motor (29) is installed on the upper side of the press machine (1), and the upper end of the lead screw (27) is connected to the output end of the third motor (29); The adhesive application unit (3) includes: The glue applicator (31) is threaded onto the lead screw (27) and has a glue inlet plug (311) installed on its upper side. The glue inlet tube (32) is connected to the lower side of the glue application box (31) through a one-way valve. A first piston head (33) that can be sealed is slidably connected inside. The first piston head (33) is connected to the inner wall of the end of the glue inlet tube (32) through a first spring (35). The glue dispensing cylinder (34) is slidably connected to the lower side of the glue inlet tube (32), and its upper end is connected to the first piston head (33). A sealing unit (36) is installed inside the upper end of the glue dispensing cylinder (34). The sealing unit (36) is used to seal the glue passing through the glue inlet tube (32) and the glue dispensing cylinder (34). The adjustment unit (4) includes: The adjusting cylinder (41) is connected to the surface of the dispensing cylinder (34) by a thread, and the outer surface of the adjusting cylinder (41) is provided with raised texture (411); A pressure sensor (42) is fixed to the upper end of the regulating cylinder (41); The displacement sensor (43) is connected to the lower end of the glue inlet tube (32). Both the pressure sensor (42) and the displacement sensor (43) are electrically connected to the controller (11) on the press fitting machine (1).

2. The motor spiral armature lamination pressing device based on a servo press according to claim 1, characterized in that, The sealing unit (36) includes: An embedded groove (361) is formed inside the dispensing tube (34); The baffle (362) is rotatably connected to the inside of the recess (361), and has an arc-shaped surface (363) on its side. The seal (364) is slidably connected inside the recess (361), with one end connected to the side of the baffle (362) and the other end connected to the inner wall of the recess (361) via a second spring (365).

3. The motor spiral armature lamination pressing device based on a servo press according to claim 2, characterized in that, The pressure head (28) includes: The pressure head holder (281) is fixed to the lower end surface of the dispensing cylinder (34); An opening slot (282) is formed on the pressure head frame (281), and two sets of rotating frames (283) are rotatably connected inside the opening slot (282); The pressure head (284) is rotatably connected to the end of the rotating frame (283), and the two sets of pressure heads (284) are connected by an elastic rope (285).

4. The motor spiral armature lamination pressing device based on a servo press according to claim 1, characterized in that, The pressing machine (1) is equipped with a feeding unit (5) for feeding armature laminations on its side. The feeding unit (5) includes: Support plate (51) is fixed to the side of press machine (1); The stacking base (52) is slidably connected to the surface of the support plate (51), and the stacking base (52) is provided with a stacking slot (521) for placing armature stacks; The cylinder (53) is mounted on the upper side of the support plate (51), and the side of the stacking seat (52) is connected to the output end of the cylinder (53); The lamination seat groove (54) is formed on the surface of the support plate (51) and its upper side is connected to the lamination groove (521); The pusher (55) is rotatably connected to the stacking base (52); A chute (56) is formed on the stacking groove (521), and a magnet (57) is installed at one end of the chute (56). The lower end of the pusher frame (55) is slidably connected inside the chute (56).

Images