conveying device

Abstract

The application provides a carrying device, comprising two clamping groups for clamping stators, the two clamping groups being arranged opposite to each other; a first driving assembly comprising nuts connected to the clamping groups respectively, a screw rod for driving the two nuts to move close to or away from each other, a first driver for driving the screw rod to rotate, and a first support for supporting the first driver, the screw rod being rotatably arranged on the first support, and a power output end of the first driver being connected to the screw rod. The carrying device provided by the application can control the two clamping groups to move close to or away from each other by adopting the screw rod and the two nuts, so that the two clamping groups have a large stroke, the positions of the clamping groups can be adjusted during clamping, the distance between the two clamping groups can be controlled to match stators with different diameters, and the carrying device can meet the carrying requirements of stators with different diameters.

Description

Technical Field

[0001] This application belongs to the field of motor processing technology, and more specifically, relates to a handling device. Background Technology

[0002] An electric motor consists of a stator and a rotor. During stator manufacturing, the end wires and leads need to be trimmed. Automated production lines typically include a handling device to grip and move the stator. To ensure the accuracy of stator handling, existing handling devices usually employ matching gripper cylinders to control the gripping of the stator. However, the stroke of the gripper cylinder is fixed, resulting in a relatively small range of stator size variation. This makes it unsuitable for gripping stators with larger or smaller diameters, and it cannot accommodate the handling needs of stators of different sizes. Utility Model Content

[0003] The purpose of this application is to provide a handling device to solve the technical problem that the handling devices in the prior art cannot be well compatible with stators of different sizes.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a conveying device, comprising:

[0005] Two clamping assemblies are used to grip the stator, and the two clamping assemblies are arranged facing each other.

[0006] The first drive assembly includes nuts connected to each of the clamping groups, a lead screw for driving the two nuts to move closer or further apart synchronously, a first driver for driving the lead screw to rotate, and a first support for supporting the first driver. The lead screw is rotatably mounted on the first support, and the power output end of the first driver is connected to the lead screw.

[0007] In this embodiment, by employing a lead screw and two nuts, the two clamping groups are controlled to move closer or further apart, ensuring both groups have a large stroke. The position of the clamping groups can be adjusted during clamping, allowing the spacing between the two groups to match stators of different diameters. This helps to prevent the entire load of the first actuator from being applied to the stator, keeping the pressure on the stator within a relatively small range when clamping both large and small diameter stators. This prevents excessive pressure from damaging the stator or the clamping groups, or excessive spacing from causing clamping failure with small-diameter stators, thus maintaining stable stator clamping. This approach is compatible with the handling needs of stators of different diameters. Furthermore, using a single lead screw to drive two nuts helps reduce weight and space occupation, keeps the two clamping groups synchronized, and lowers equipment costs.

[0008] In one embodiment, the lead screw includes a first threaded section and a second threaded section, the first threaded section and the second threaded section having opposite thread directions, and two nuts are respectively installed on the first threaded section and the second threaded section.

[0009] By employing the aforementioned technical means, it is possible to control the two clamping groups to move closer or further apart.

[0010] In one embodiment, each of the clamping assemblies includes a jaw, a second driver for driving the jaw to rotate, and a second support for supporting the second driver. The jaw is rotatably mounted on the second support. The power output terminal of the second driver is connected to the jaw, and the second support is connected to the power output terminal of the first driver.

[0011] By employing the aforementioned technical means, stator rotation can be controlled.

[0012] In one embodiment, the second driver is a first cylinder, and the output end of the first cylinder is equipped with a connecting seat that is slidably connected to the second support. The clamping assembly further includes a gear coaxially connected to the jaws and a rack meshing with the gear, and the rack is mounted on the connecting seat.

[0013] By employing the aforementioned technical means, the rotation of the gripper can be controlled, which helps to reduce costs.

[0014] In one embodiment, the conveying device further includes a second drive assembly for driving the first support to rise and fall and a third drive assembly for driving the second drive assembly to translate. The power output end of the third drive assembly is connected to the second drive assembly, and the power output end of the second drive assembly is connected to the first support.

[0015] By employing the aforementioned technical means, it is possible to control the lifting, lowering, and translation of the bearing stator.

[0016] In one embodiment, the second drive component includes a third driver and a third support for supporting the third driver, the third support being slidably connected to the first support, and the power output end of the third driver being connected to the first support.

[0017] By adopting the above-mentioned technical means, the stability of the lifting and lowering of the first drive component can be improved.

[0018] In one embodiment, the second drive assembly further includes a balancer for counteracting the gravity of the first drive assembly, the clamping group, and the stator, the balancer being mounted on the third support, and the power output end of the balancer being connected to the first support.

[0019] By adopting the above-mentioned technical means, it is beneficial to reduce the load on the third drive and reduce the impact.

[0020] In one embodiment, the balancer is a second cylinder;

[0021] And / or, the third actuator is an electric cylinder; and / or,

[0022] The number of balancers is two, and the two balancers are located on opposite sides of the third driver.

[0023] By employing the above-mentioned technical means, a buffering effect can be achieved, and the upward force can be easily adjusted; this is beneficial for improving the accuracy of lifting and lowering position control; and it is beneficial for improving stability.

[0024] In one embodiment, the third drive assembly includes a first synchronous belt connected to the second drive assembly, a first transmission wheel, a first drive wheel, a fourth driver for driving the first drive wheel to rotate, and a fourth support for supporting the fourth driver. The power output end of the fourth driver is connected to the first drive wheel. The first transmission wheel and the first drive wheel are rotatably mounted on the fourth support. The first drive wheel cooperates with the first transmission wheel to support the first synchronous belt.

[0025] By employing the aforementioned technical means, it is possible to control the second drive component to move in a straight line.

[0026] In one embodiment, the conveying device further includes a fourth drive assembly for cooperating to press the stator, the fourth drive assembly being mounted on the first support.

[0027] By employing the aforementioned technical means, the stator can be pressed firmly into the loading position. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the conveying device provided in the embodiments of this application;

[0030] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle clamping assembly, the first drive assembly, the second drive assembly, and the fourth drive assembly;

[0031] Figure 3 for Figure 2Exploded view of the middle structure;

[0032] Figure 4 for Figure 2 A three-dimensional structural diagram of the clamping assembly, the first drive assembly, and the fourth drive assembly.

[0033] The following are the labeling elements in the figure:

[0034] 10. Clamping assembly; 11. Gripper; 12. Second support; 121. First slider; 122. Third guide rail; 13. Second driver; 14. Gear; 15. Rack; 16. Connecting seat; 161. Third slider;

[0035] 20. First drive assembly; 21. Nut; 22. Lead screw; 221. First threaded section; 222. Second threaded section; 23. First driver; 24. First support; 241. First guide rail; 242. First slide rod; 243. Second sliding sleeve; 25. Second transmission wheel; 26. Second synchronous belt; 27. Second drive wheel;

[0036] 30. Second drive assembly; 31. Third driver; 32. Third support; 321. First sliding sleeve; 322. Second slider; 33. Balancer;

[0037] 40. Third drive assembly; 41. First transmission wheel; 42. First synchronous belt; 43. First drive wheel; 44. Fourth driver; 441. Connecting shaft; 442. Third transmission wheel; 443. Third synchronous belt; 444. Third drive wheel; 45. Fourth support; 451. Second guide rail;

[0038] 50. Fourth drive assembly; 51. Pressure ring; 52. Fifth actuator; 53. Second slide bar;

[0039] 60. Stator. Detailed Implementation

[0040] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] Please refer to the following: Figures 2 to 4The conveying device provided in the embodiments of this application will now be described. The conveying device includes two clamping groups 10 and a first drive assembly 20. The two clamping groups 10 are used to clamp the stator 60 and are arranged opposite each other. The first drive assembly 20 includes two nuts 21, a lead screw 22, a first driver 23 and a first support 24. The two nuts 21 are respectively connected to each of the two clamping groups 10. The lead screw 22 is used to drive the two nuts 21 to move closer or further away synchronously. The first driver 23 is used to drive the lead screw 22 to rotate. The first support 24 supports the first driver 23. The lead screw 22 is rotatably mounted on the first support 24. The power output end of the first driver 23 is connected to the lead screw 22. When the first driver 23 drives the lead screw 22 to rotate, the lead screw 22 drives the two nuts 21 to move closer or further apart, and each nut 21 drives the corresponding clamping group 10 to move, thereby controlling the two clamping groups 10 to move closer or further apart, so as to realize the clamping or release of the stator 60 located between the two clamping groups 10; the clamping group 10 may be, but is not limited to, used to clamp the stator 60 or the rotor. In this embodiment, by using a lead screw 22 and two nuts 21 to control the two clamping groups 10 to move closer or further apart, both clamping groups 10 have a large stroke. The position of the clamping groups 10 can be adjusted during clamping, thereby controlling the spacing between the two clamping groups 10 to match stators 60 of different diameters. This can, to some extent, prevent the entire load of the first driver 23 from being applied to the stator 60, ensuring that the pressure exerted on the stator 60 by the clamping groups 10 is controlled within a relatively small range when clamping both large and small diameter stators 60. This prevents excessive pressure from damaging the stator 60 or the clamping groups 10, or from causing failure to clamp small-diameter stators 60 due to excessive spacing, thus maintaining stable clamping of the stator 60. This approach is compatible with the handling requirements of stators 60 of different diameters. Furthermore, using a single lead screw 22 to drive two nuts 21 helps reduce weight, minimize space occupation, maintain synchronization of the two clamping groups 10, and reduce equipment costs.

[0045] In one embodiment of this application, please refer to Figures 2 to 4 The lead screw 22 includes a first threaded section 221 and a second threaded section 222, with the threads of the first threaded section 221 and the second threaded section 222 having opposite directions. Two nuts 21 are respectively installed on the first threaded section 221 and the second threaded section 222. One nut 21 is threadedly engaged with the first threaded section 221, and the other nut 21 is threadedly engaged with the second threaded section 222. By using the first threaded section 221 and the second threaded section 222 with opposite thread directions, the two nuts 21 can be driven to move synchronously in opposite directions when the lead screw 22 rotates. Of course, in other embodiments, positive and negative threads can also be provided on the entire lead screw 22, and the two nuts 21 can be respectively set with internal threads that engage with the positive and negative threads, so as to control the two nuts 21 to move synchronously in opposite directions when the lead screw 22 rotates.

[0046] Optionally, the first threaded section 221 and the second threaded section 222 are arranged symmetrically. This facilitates control of the feed center position.

[0047] In one embodiment of this application, please refer to Figures 2 to 4 The first drive assembly 20 also includes a second transmission wheel 25 mounted on the lead screw 22, a second drive wheel 27 mounted on the power output end of the first driver 23, and a second synchronous belt 26 supported on the second transmission wheel 25 and the second drive wheel 27. The first driver 23 can be a motor. This facilitates control of the rotation speed and revolutions of the lead screw 22, enabling precise control of the positions of the two clamping assemblies 10, and the second synchronous belt 26 can prevent overload damage to the first driver 23, the clamping assemblies 10, and the stator 60.

[0048] Optionally, a first guide rail 241 is mounted on the first support 24, and a first slider 121 that slides in cooperation with the first guide rail 241 is mounted on the clamping assembly 10. This helps to improve the stability of the clamping assembly 10 and reduce movement resistance.

[0049] Optionally, there are two first guide rails 241, located at opposite ends of the first support 24 along the width direction (X-axis direction); the lead screw 22 is located between the two first guide rails 241. This helps to improve the stability of the clamping assembly 10.

[0050] In one embodiment of this application, please refer to Figures 2 to 4 Each clamping assembly 10 includes a jaw 11, a second driver 13 for driving the jaw 11 to rotate, and a second support 12 for supporting the second driver 13. The jaw 11 is rotatably mounted on the second support 12. The power output end of the second driver 13 is connected to the jaw 11, and the second support 12 is connected to the power output end of the first driver 23. Thus, the jaw 11 can be rotated by the second driver 13 to facilitate the flipping of the stator 60. Specifically, the second support 12 is connected to the first slider 121 and the nut 21, so that the first drive assembly 20 can drive the second support 12 to move.

[0051] Optionally, the gripper 11 is provided with an elastic pad, which can act as a buffer when gripping the stator 60, so as to control the gripping pressure.

[0052] In one embodiment of this application, please refer to Figures 2 to 4The second actuator 13 is a first cylinder. The output end of the first cylinder is fitted with a connecting seat 16 that is slidably connected to the second support 12. The clamping assembly 10 also includes a gear 14 coaxially connected to the gripper 11 and a rack 15 meshing with the gear 14. The rack 15 is mounted on the connecting seat 16. When the first cylinder drives the rack 15 to move linearly, the rack 15 drives the gear 14 to rotate, and the gear 14 drives the gripper 11 to rotate. Using a first cylinder helps reduce costs.

[0053] Optionally, a third guide rail 122 is mounted on the second support 12, and a third slider 161 that slides with the third guide rail 122 is mounted on the connecting seat 16. This helps to improve the stability of the connecting seat 16 and guides the connecting seat 16 to move linearly.

[0054] In one embodiment of this application, please refer to Figures 1 to 3 The conveying device also includes a second drive assembly 30 for driving the first support 24 to rise and fall (in the Z-axis direction) and a third drive assembly 40 for driving the second drive assembly 30 to translate (in the XY plane). The power output end of the third drive assembly 40 is connected to the second drive assembly 30, and the power output end of the second drive assembly 30 is connected to the first support 24. The third drive assembly 40 can drive the second drive assembly 30 to move along the X-axis, or drive the second drive assembly 30 to move in both the X and Y axes. Thus, after the clamping assembly 10 clamps the stator 60, it can control the clamping assembly 10 to rise, translate, and fall, facilitating the transport of the stator 60 to different positions.

[0055] In one embodiment of this application, please refer to Figures 1 to 3 The second drive assembly 30 includes a third drive unit 31 and a third support 32 supporting the third drive unit 31. The third support 32 is slidably connected to the first support 24. The power output end of the third drive unit 31 is connected to the first support 24, and the third support 32 is connected to the power output end of the third drive assembly 40. The third drive unit 31 can be a linear actuator such as an electric cylinder. The slidable connection between the third support 32 and the first support 24 helps improve the stability of the first drive assembly 20 during lifting and lowering.

[0056] In one embodiment of this application, please refer to Figures 1 to 3 A first sliding rod 242 is installed on the first support 24, and a first sliding sleeve 321 that slides with the first sliding rod 242 is installed on the third support 32. In this way, a sliding connection between the first support 24 and the third support 32 can be achieved.

[0057] Optionally, there may be multiple first slide rods 242, arranged around the third actuator 31. The multiple first slide rods 242 may form a circular or rectangular array around the third actuator 31. This helps improve the stability of the first drive assembly 20 during lifting and lowering.

[0058] In one embodiment of this application, please refer to Figures 1 to 3 The second drive assembly 30 also includes a balancer 33, which is used to counteract the gravity of the first drive assembly 20 and the clamping group 10. The balancer 33 is mounted on the third support 32, and the power output end of the balancer 33 is connected to the first support 24. It should be noted that the upward force provided by the balancer 33 can be greater than, less than or equal to the sum of the gravity of the first drive assembly 20, the clamping group 10, the fourth drive assembly 50, and the stator 60. The balancer 33 can provide an upward force to counteract or partially counteract the gravity of the first drive assembly 20, the clamping group 10, the fourth drive assembly 50, and the stator 60. This allows the third drive 31 to apply a smaller load to control the first drive assembly 20 to rise or fall, reducing the load change when the third drive 31 drives the first drive assembly 20 to rise or fall, reducing impact, and making the rising and falling more stable.

[0059] Optionally, the balancer 33 is a second cylinder. By using a second cylinder, a certain buffering effect can be achieved. Moreover, by adjusting the pressure of the second cylinder, the upward force it exerts on the first drive assembly 20 can be easily adjusted to better match the handling requirements of stators 60 with different masses.

[0060] Optionally, the third drive 31 is an electric cylinder. By using an electric cylinder, the lifting height position of the first drive assembly 20 can be precisely controlled.

[0061] Optionally, there are two balancers 33, located on opposite sides of the third actuator 31. This helps to maintain a balance of forces on both sides of the first support 24 and the third actuator 31.

[0062] In one embodiment of this application, please refer to Figures 1 to 3 The third drive assembly 40 includes a first synchronous belt 42 connected to the second drive assembly 30, a first transmission wheel 41, a first drive wheel 43, a fourth driver 44 for driving the first drive wheel 43 to rotate, and a fourth support 45 supporting the fourth driver 44. The power output end of the fourth driver 44 is connected to the first drive wheel 43. The first transmission wheel 41 and the first drive wheel 43 are rotatably mounted on the fourth support 45, and the first drive wheel 43 cooperates with the first transmission wheel 41 to support the first synchronous belt 42. In this way, the second drive assembly 30 can be controlled to move linearly. The fourth support 45 is slidably connected to the third support 32 to reduce resistance.

[0063] In one embodiment of this application, please refer to Figures 1 to 3The third drive assembly 40 includes two first transmission wheels 41, located at opposite ends of the fourth support 45 along its width direction (Y-axis direction); two first drive wheels 43, also located at opposite ends of the fourth support 45 along its width direction; and two first synchronous belts 42, connected to opposite ends of the third support 32. The third drive assembly 40 further includes a connecting shaft 441 connecting the two first drive wheels 43, a third transmission wheel 442 mounted on the connecting shaft 441, a third drive wheel 444 mounted on the power output end of the third drive unit 31, and a third synchronous belt 443 supported on the third transmission wheel 442 and the third drive wheel 444. This arrangement helps maintain force balance at both ends of the third support 32, improving movement stability.

[0064] Optionally, a second guide rail 451 is mounted on the fourth support 45, and a second slider 322 that slides in cooperation with the second guide rail 451 is mounted on the third support 32. This helps to reduce moving resistance and guide the third support 32 to move linearly.

[0065] In one embodiment of this application, please refer to Figures 2 to 4 The conveying device also includes a fourth drive assembly 50 for cooperating in pressing the stator 60, the fourth drive assembly 50 being mounted on the first support 24. Thus, when the stator 60 is placed in the loading position, the fourth drive assembly 50 can press the stator 60 to maintain the stability of the stator 60 in the loading position.

[0066] In one embodiment of this application, please refer to Figures 1 to 3 The fourth drive assembly 50 includes a pressure ring 51 and a fifth driver 52 for driving the pressure ring 51 to rise and fall. The fifth driver 52 is mounted on the first support 24, and its power output end is connected to the pressure ring 51. Thus, when the second drive assembly 30 drives the first drive assembly 20 to rise and fall, the fourth drive assembly 50 can maintain synchronous rise and fall with the first drive assembly 20; when the clamping assembly 10 descends to the loading position, the fifth driver 52 drives the pressure ring 51 to press the stator 60. Optionally, the fifth driver 52 is a third cylinder, which helps reduce costs and provides a certain degree of cushioning.

[0067] Optionally, a second sliding rod 53 is installed on the pressure ring 51, and a second sliding sleeve 243 that slides with the second sliding rod 53 is installed on the first support 24. This helps to improve the stability of the pressure ring 51.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A conveying device, characterized in that, include: Two clamping assemblies are used to grip the stator, and the two clamping assemblies are arranged facing each other. The first drive assembly includes nuts respectively connected to each of the clamping groups, a lead screw for driving the two nuts to move closer or further apart synchronously, a first driver for driving the lead screw to rotate, and a first support for supporting the first driver. The lead screw is rotatably mounted on the first support, and the power output end of the first driver is connected to the lead screw. The conveying device further includes a second drive assembly for driving the first support to rise and fall and a third drive assembly for driving the second drive assembly to translate. The power output end of the third drive assembly is connected to the second drive assembly, and the power output end of the second drive assembly is connected to the first support. The second drive assembly includes a third drive and a third support for supporting the third drive. The third support is slidably connected to the first support, and the power output end of the third drive is connected to the first support. The second drive assembly further includes a balancer for counteracting the gravity of the first drive assembly, the clamping group and the stator, the balancer being mounted on the third support and the power output end of the balancer being connected to the first support.

2. The conveying device as described in claim 1, characterized in that: The lead screw includes a first threaded section and a second threaded section, the threads of the first threaded section and the second threaded section are in opposite directions, and the two nuts are respectively installed on the first threaded section and the second threaded section.

3. The conveying device as described in claim 1, characterized in that: Each of the clamping assemblies includes a jaw, a second driver for driving the jaw to rotate, and a second support for supporting the second driver. The jaw is rotatably mounted on the second support. The power output end of the second driver is connected to the jaw, and the second support is connected to the power output end of the first driver.

4. The conveying device as described in claim 3, characterized in that: The second driver is a first cylinder, and the output end of the first cylinder is equipped with a connecting seat that is slidably connected to the second support. The clamping assembly also includes a gear coaxially connected to the jaws and a rack meshing with the gear, and the rack is mounted on the connecting seat.

5. The conveying device as described in claim 1, characterized in that: The balancer is a second cylinder; And / or, the third actuator is an electric cylinder; and / or, The number of balancers is two, and the two balancers are located on opposite sides of the third driver.

6. The conveying device as claimed in claim 1, characterized in that: The third drive assembly includes a first synchronous belt connected to the second drive assembly, a first transmission wheel, a first drive wheel, a fourth driver for driving the first drive wheel to rotate, and a fourth support for supporting the fourth driver. The power output end of the fourth driver is connected to the first drive wheel. The first transmission wheel and the first drive wheel are rotatably mounted on the fourth support. The first drive wheel and the first transmission wheel cooperate to support the first synchronous belt.

7. The conveying device according to any one of claims 1 to 5, characterized in that: The conveying device further includes a fourth drive assembly for cooperating in pressing the stator, the fourth drive assembly being mounted on the first support.

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