Variable-pitch carrying device and laser processing equipment
By adopting a combination of rotary drive mechanism and variable distance module in the variable distance handling device, the problems of increasing weight of the rotary arm and difficulty in adjusting the material spacing in the prior art are solved, and flexible material spacing adjustment and power saving are achieved. Precision laser processing.
Patent Information
- Application Number
- CN202420825133.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-20
AI Technical Summary
The existing variable distance handling device has a driving assembly on the rotary arm, which results in an increase in weight of the rotary arm and a larger inertia, making it difficult to effectively adjust the material spacing.
Design a variable distance handling device, using a rotary drive mechanism to drive the rotary arm, and adjust the material spacing by fixing the synchronization pulley, rotating the synchronization pulley, the synchronization belt and the connecting rod combination, and combining the linear guide mechanism to adjust the material spacing to avoid An additional drive assembly is provided on the rotary arm.
It realizes flexible adjustment of material spacing, saves power, and avoids increasing weight of the rotary arm. It has a simple and light structure and is suitable for precision laser processing.
Smart Images
Figure CN222203973U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of laser processing equipment, and specifically relates to a variable-distance transport device and laser processing equipment. Background Art
[0002] In the field of precision laser processing, a rotating arm handling device is often used. One or more suction cup structures are circumferentially fixed on the upper part of the support device through a connecting piece. The support device drives the suction cup to rotate, and the material carried on it passes through each process step in sequence. During the handling process, each process needs to adjust the spacing of the transported materials to ensure that the position of the product to be processed meets the processing requirements of the laser equipment. The variable distance handling device of the prior art sets a drive assembly on the rotating arm to connect the suction cup assembly to control the variable distance of the material, which increases the weight of the rotating arm and increases the inertia. Utility Model Content
[0003] The utility model aims to solve at least one problem existing in the prior art. To this end, the utility model adopts the following technical solution.
[0004] On the one hand, the utility model provides a variable-pitch transport device, including a rotary drive mechanism and a swivel arm, wherein the swivel arm is connected to the rotary drive mechanism and rotates under the drive of the rotary drive mechanism, and a material picking and placing mechanism is arranged at an end of the swivel arm away from the rotary drive mechanism, the swivel arm includes a main arm connected to the output shaft of the rotary drive mechanism, and a connecting arm arranged away from the rotation center of the main arm, the connecting arm and the main arm are arranged vertically, and two material picking and placing mechanisms are arranged on the connecting arm at intervals along the extension direction thereof, which are a first material picking and placing mechanism and a second material picking and placing mechanism, and at least one material picking and placing mechanism is connected to a variable-pitch module; a variable-pitch module is also arranged on the swivel arm, and the variable-pitch module The group includes a fixed synchronous pulley, a rotating synchronous pulley, a synchronous belt, a connecting rod and a linear guide module, wherein the fixed synchronous pulley is arranged on a base and does not rotate with the rotating arm, the rotating synchronous pulley is arranged on a connecting arm, the synchronous belt is sleeved on the fixed synchronous pulley and the rotating synchronous pulley, one end of the connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on the material picking and placing mechanism connected to the variable pitch module; the linear guide mechanism is arranged on the connecting arm, located on the side of the synchronous pulley close to the material picking and placing mechanism connected to the variable pitch module, and extends along the extension direction of the connecting arm; the material picking and placing mechanism moves along the extension direction of the connecting arm through the linear guide module.
[0005] In a variable distance handling device according to one embodiment, the linear guide mechanism is a slide rail and slider module, the slide rail is arranged along the extension direction of the connecting arm, and the material picking and placing mechanism is arranged on the slider and slides along the slide rail.
[0006] A variable-pitch handling device according to one embodiment, wherein the first material picking-up and placing mechanism and the second material picking-up and placing mechanism are both connected to a variable-pitch module; the variable-pitch module comprises a fixed synchronous pulley, a rotating synchronous pulley, a synchronous belt, a first connecting rod, a second connecting rod, a first linear guide mechanism and a second linear guide mechanism; one end of the first connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on the first material picking-up and placing mechanism, one end of the second connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on the second material picking-up and placing mechanism; the first linear guide module and the second linear guide module are arranged on both sides of the first connecting arm at the rotating synchronous pulley, and extend along the extension direction of the connecting arm; the first material picking-up and placing mechanism moves along the extension direction of the connecting arm through the first linear guide module, and the second material picking-up and placing mechanism moves along the extension direction of the connecting arm through the second linear guide module.
[0007] In a variable-distance handling device according to one embodiment, the material picking and placing mechanism is a suction cup module, the suction cup of the suction cup module is arranged below the connecting arm with the adsorption surface facing downward; and the rotation driving mechanism is a motor.
[0008] In one embodiment of a variable-length transport device, the rotating arm includes a first rotating arm and a second rotating arm, and the first rotating arm and the second rotating arm are arranged at 30 degrees, 60 degrees, 90 degrees, and 120 degrees with the rotation center as the vertex.
[0009] In a variable-length transport device according to one embodiment, the first rotating arm and the second rotating arm are arranged at 90 degrees with the rotation center as the vertex.
[0010] In one embodiment, a variable-length transport device is provided with a variable-length module on the first rotating arm, the second rotating arm includes a second main arm connected to the output shaft of the rotating drive device, and a second connecting arm arranged on the second main arm away from the rotation center, the second connecting arm is arranged perpendicular to the first main arm, and the corresponding first material picking and placing mechanism and second material picking and placing mechanism are respectively fixed on the second connecting arm at intervals along the extension direction of the second connecting arm.
[0011] In one embodiment of a variable-pitch transport device, variable-pitch modules are provided on both the first rotating arm and the second rotating arm, the synchronous belt on the second rotating arm is staggered in height from the synchronous belt on the first rotating arm, and is sleeved on the same fixed synchronous belt pulley.
[0012] On the other hand, the utility model also provides a laser processing device, including the aforementioned variable-distance transport device, a rotary processing table, and a loading conveyor belt and a unloading conveyor belt;
[0013] Among them, the rotating processing table has one or more processing tables, and can be rotated to a loading station, a processing station and a unloading station, loading is performed at the loading station, processing is performed at the processing station, and unloading is performed at the unloading station, wherein a laser processing module is arranged above the processing station;
[0014] The loading conveyor belt and the unloading conveyor belt are respectively arranged in front of the loading station and behind the unloading station to convey two materials side by side;
[0015] The variable distance transport device is arranged between the loading conveyor belt and the loading station of the rotary processing table, and / or between the unloading station of the rotary processing table and the unloading conveyor belt.
[0016] In a laser processing device of one embodiment, a material alignment device is provided between a loading conveyor belt and a loading station of a rotary processing table to carry a battery cell and perform mechanical positioning or visual positioning;
[0017] A variable-pitch handling device is arranged between the feeding conveyor belt, the feeding station of the rotary processing table and the material alignment device. During the reciprocating motion of the feeding conveyor belt and the material alignment device, the second rotating arm reciprocates between the material alignment device and the feeding station of the rotary processing table. The first rotating arm is provided with a variable-pitch module, while the second rotating arm is not provided with a variable-pitch module.
[0018] A variable distance transport device is arranged between the unloading station and the unloading conveyor belt, comprising a rotating arm, on which a variable distance module is arranged.
[0019] The beneficial effects of the utility model are:
[0020] The variable distance transport device of the present application can realize the variable distance between materials during the transport process, and the variable distance does not require an additional drive component. On the one hand, it saves power, and on the other hand, it avoids the increase in the weight of the rotating arm caused by the drive component being set on the rotating arm; the structure is simple and light, and it saves power. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic structural axonometric diagram of a variable-distance transport device according to an embodiment of the utility model.
[0022] Figure 2 It is a top view of the structure of a variable-distance transport device according to an embodiment of the utility model.
[0023] Figure 3 It is a structural top view of another state of the variable distance transport device according to one embodiment of the utility model.
[0024] Figure 4 This is a schematic diagram of the structure of a processing equipment according to an embodiment of the utility model.
[0025] In the figure:
[0026] 1- variable distance handling device, 2- rotating processing table, 3- loading conveyor belt; 4- unloading conveyor belt; 5- material alignment device;
[0027] 10-motor seat; 20-motor; 31-first rotating arm, 311-first connecting arm, 32-second rotating arm, 321-second connecting arm; 41-first suction cup, 42-second suction cup; 51-fixed synchronous pulley, 52-rotating synchronous pulley, 53-synchronous belt, 54-first connecting rod, 55-second connecting rod, 56-first linear guide module, 57-second linear guide module. DETAILED DESCRIPTION
[0028] The utility model discloses a variable distance transport device, which can adjust the distance between materials without adding any other power source.
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0030] It should be understood that the schematic drawings are not drawn to scale. Reference to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0031] Embodiment 1:
[0032] See also Figures 1 to 3 This embodiment provides a variable distance transport device, wherein: Figure 1 This is a schematic diagram of the structure of the variable-distance transport device of the present application. Figure 2 and Figure 3 The first and second state diagrams of the variable pitch of the variable pitch transport device are respectively. The variable pitch transport device of the present application includes a motor base 10 and a motor 20 arranged in the base. The output end of the motor 20 is upward and connected to the rotation center of the rotating arm. The rotating arm reciprocates around the rotation center under the drive of the motor 20. The motor base 10 can be a base of other forms, and the motor 20 can also use other rotation-driven actuators, such as a rotary cylinder, etc.; a transmission mechanism can also be set between the output end of the motor 20 and the rotation center. When it is other rotation-driven actuators, the motor base can be a base of other forms.
[0033] The rotating arm includes a first rotating arm 31 and a second rotating arm 32, which are arranged at 90 degrees with the rotation center as the vertex, or at other angles. The first rotating arm 31 includes a first main arm connected to the motor output shaft, and a first connecting arm 311 arranged on the first main arm away from the rotation center; similarly, the second rotating arm 32 includes a second main arm connected to the motor output shaft, and a second connecting arm 321 arranged on the second main arm away from the rotation center. Figure 1 Preferably, the first connecting arm 311 and the first main arm are vertically arranged; similarly, the second connecting arm 321 and the second main arm are vertically arranged. Those skilled in the art can know that the first connecting arm 311 can be fixed on the first main arm or formed integrally with the first main arm; the second connecting arm 321 can be fixed on the second main arm or formed integrally with the second main arm.
[0034] Two material picking and placing mechanisms are arranged on the first connecting arm 311 at intervals along its extension direction. This embodiment is used to transfer solar cells, and a suction cup module is used as the material picking and placing mechanism. Other forms of picking and placing mechanisms, such as mechanical claws, may also be used. In this embodiment, the material picking and placing mechanism is a suction cup module as an example, and a first suction cup module 41 and a second suction cup module 42 are arranged on the first connecting arm 311 at intervals along its extension direction. More specifically, the suction cups of the first suction cup module 41 and the second suction cup module 42 are arranged below the first connecting arm 311, with the adsorption surface facing downward.
[0035] In order to achieve the variable pitch of the first suction cup module 41 and the second suction cup module 42, a variable pitch module is also provided on the first rotating arm 31, and the variable pitch module includes a fixed synchronous belt pulley 51, and the fixed synchronous belt pulley 51 is fixedly arranged on the motor base 10. More specifically, the fixed synchronous belt pulley 51 does not rotate with the first rotating arm 31 or the second rotating arm 32.
[0036] The pitch changing module includes a rotating synchronous pulley 52 rotatably arranged on the first connecting arm 311, a synchronous belt 53 sleeved on the fixed synchronous pulley 51 and the rotating synchronous pulley 52, and a first connecting rod 54 and a second connecting rod 55. One end of the first connecting rod 54 is hinged on the rotating synchronous pulley 52, and the other end is hinged on the first suction cup module 41. One end of the second connecting rod 55 is hinged on the rotating synchronous pulley 52, and the other end is hinged on the second suction cup module 42. More specifically, the connecting line of the first connecting rod 54 and the second connecting rod 55 at the hinge on the rotating synchronous pulley is preferably in the diameter direction of the rotating synchronous pulley 52. The advantage of such a setting is that when the material pitch is changed, the two materials are changed synchronously, which is more reliable and accurate.
[0037] The variable pitch module also includes a first linear guide module 56 and a second linear guide module 57. Both are arranged on both sides of the first connecting arm 311 on the rotating synchronous pulley 52, and extend along the extension direction of the first connecting arm 311. The first suction cup module 41 moves along the extension direction of the first connecting arm 311 through the first linear guide module 56, and the second suction cup module 42 moves along the extension direction of the first connecting arm 311 through the second linear guide module 57. As an implementable method, the first linear guide module 56 and the second linear guide module 57 are both slide rail and slider modules, wherein the slide rail is arranged along the extension direction of the first connecting arm, and the first suction cup module 41 and the second suction cup module 42 are arranged on the slider and slide along the slide rail.
[0038] In this embodiment, no variable distance module is provided on the second rotating arm 32, and its corresponding first suction cup module 41 and second suction cup module 42 are respectively fixed on the second connecting arm 321 at intervals along the extension direction of the second connecting arm 321, and the suction cups of the first suction cup module 41 and the second suction cup module 42 are arranged below the first connecting arm 311 with the adsorption surface facing downward.
[0039] See also Figure 2 and Figure 3 , is a schematic diagram of the variable distance state of the variable distance transport device of the present application, Figure 2 and Figure 3 The first state and the second state are shown respectively. When the arm swings clockwise, Figure 2 The first state becomes Figure 3 The second state, at this time, the first rotating arm 31 and the second rotating arm 32 swing clockwise at the same time. Since the fixed synchronous pulley 51 is fixedly arranged, the synchronous belt 53 drives the rotating synchronous pulley 52 to rotate clockwise, driving the first connecting rod 54 and the second connecting rod 55 to rotate, thereby driving the first suction cup module 41 and the second suction cup module 42 to move in the approaching direction along the first linear guide module 56 and the second linear guide module 57 respectively, thereby reducing the distance between the first suction cup module 41 and the second suction cup module 42.
[0040] When the arm is swung counterclockwise, on the contrary, Figure 3 The status changes to Figure 2 state, the distance between the first suction cup module 41 and the second suction cup module 42 can be increased.
[0041] The variable distance transport device of the present application can realize the variable distance between materials during the transport process through the above-mentioned arrangement, and the variable distance does not require the additional setting of a driving component, which saves power and avoids the increase in the weight of the rotating arm caused by the setting of the driving component on the rotating arm; the structure is simple and light, and saves power.
[0042] Furthermore, the variable-distance transport device of the present application can realize the variable distance of materials in a direction perpendicular to the extension direction of the rotating arm, and is very suitable for the variable distance of double-half-cell solar cells that are transported in parallel.
[0043] It can be understood that in this embodiment, Figure 2 In the first state, the direction of the connecting line of the first connecting rod 54, the second connecting rod 55 and the hinged position of the rotating synchronous pulley 52 is parallel or nearly parallel to the first connecting arm 311. Figure 3 When the first connecting rod 54 is in the second position, the connecting line of the hinged position of the second connecting rod 55 and the rotating synchronous belt pulley 52 is perpendicular or nearly perpendicular to the first connecting arm 311. A better pitch change can be achieved.
[0044] The first position and the second position are set according to the angle of the material to be transported and the distance between the materials to be increased or decreased according to the actual application requirements.
[0045] The number of teeth and the module of the fixed synchronous pulley 51 determine its diameter. Generally, a small module has high transmission accuracy, and a large module has high transmission power. The diameter of the rotating synchronous pulley 52 can be set according to the required pitch change distance.
[0046] The distance of the variable pitch can be set according to the rotation angle of the rotating arm, the transmission ratio of the fixed synchronous wheel and the rotating synchronous belt pulley, and the fixed position of the first connecting rod and the second connecting rod on the rotating synchronous belt pulley. In this example, the rotation angle of the rotating arm is 90° and the transmission ratio is 1:1, which is mainly set according to the fixed position of the first connecting rod and the second connecting rod on the rotating synchronous belt pulley.
[0047] It should be noted that the variable pitch module may also be provided on the second rotating arm 32 , and the variable pitch module is not provided on the first rotating arm.
[0048] Embodiment 2:
[0049] The other parts of this embodiment are similar to those of the first embodiment, except that the second suction cup module 42 on the first connecting arm 311 is fixedly arranged on the first connecting arm 311, the second connecting rod and the second linear guide module are eliminated, and the first connecting rod and the first linear guide module are retained. The first suction cup module 41 can be moved closer to or farther from the second suction cup module 42, and the distance between the first suction cup module 41 and the second suction cup module 42 can also be changed.
[0050] It should be noted that the first suction cup module 41 can also be fixedly arranged on the first connecting arm 311, the first connecting rod and the first linear guide module can be eliminated, and the second connecting rod and the second linear guide module can be retained. The second suction cup module 42 can be moved closer to or farther away from the first suction cup module 41, and the distance between the first suction cup module 41 and the second suction cup module 42 can also be changed.
[0051] Embodiment three:
[0052] The rest of this embodiment is similar to Embodiment 1 and Embodiment 2, except that a variable pitch module is also provided on the second rotating arm. After the material is first transported to the second station for processing or finishing, it is then transported to the third station by the second rotating arm with variable pitch. Specifically, the second rotating arm is provided with the same rotating synchronous pulley, synchronous belt, first connecting rod, second connecting rod, first linear guide module and second linear guide module as the first rotating arm, and the two share a fixed synchronous pulley. The synchronous belt on the second rotating arm is staggered in height from the synchronous belt of the first rotating arm so as not to interfere with each other. Of course, the second rotating arm can also be provided with a fixed synchronous pulley separately.
[0053] Embodiment 4
[0054] The other parts of this embodiment are similar to those of Embodiment 1 and Embodiment 2, except that the second rotating arm and the material placing and taking mechanism thereon are eliminated, and only the first rotating arm and the corresponding configuration are retained. The first rotating arm can rotate at an angle of 0-180°, and the distance of the corresponding material increases and then decreases.
[0055] Embodiment 5
[0056] On the other hand, the present application also provides a laser processing equipment, including the variable-length transport device 1 of Examples 1 to 4, and also including a rotating processing table 2, a laser processing module (not shown in the figure) arranged above the processing station of the rotating processing table 2, and a loading conveyor belt 3 and a unloading conveyor belt 4.
[0057] The rotary processing table 2 is a prior art in the art, including one or more processing tables, and can be rotated to a loading station, a processing station and a unloading station. The loading station is used for loading, the processing station is used for processing, and the unloading station is used for unloading. This is a prior art and will not be described in detail here. A laser processing module is arranged above the processing station, and the material to be processed is processed by the laser processing module.
[0058] The loading conveyor belt 3 and the unloading conveyor belt 4 are respectively arranged in front of the loading station and behind the unloading station. In this embodiment, they convey two half-cell battery cells side by side.
[0059] The variable-length transport device 1 is arranged between the loading conveyor belt 3 and the loading station of the rotary processing table 2, and / or between the unloading station of the rotary processing table and the unloading conveyor belt 4.
[0060] As an optional embodiment, the variable-distance material handling device 1 of Example 1 is arranged between the loading conveyor belt 3 and the loading station of the rotary processing table 2, and also includes a material alignment device 5 for carrying the battery cell and performing mechanical positioning or visual positioning. The variable-distance handling device shown in Example 1 is arranged between the loading conveyor belt 3, the loading station of the rotary processing table 2 and the material alignment device 5. During the reciprocating motion of the loading conveyor belt 3 and the material alignment device 5, the second rotating arm 32 reciprocates between the material alignment device 5 and the loading station of the rotary processing table 2. During operation, the first suction cup module 41 and the second suction cup module 42 on the first rotating arm 31 of the variable-distance handling device 1 absorb and transfer the two materials transmitted in parallel along the conveying direction of the loading conveyor belt 3 to the material alignment device 5, complete the reduction of the material spacing, and complete the mechanical positioning or visual positioning at this station. The first suction cup module 41 and the second suction cup module 42 on the second rotating arm 32 of the variable-distance handling device 1 transport the positioned materials to the loading station.
[0061] The material arrives at the processing station for processing via the rotary processing table 2, and the processed material is moved to the unloading station.
[0062] A variable distance transport device 1 of Example 4 is arranged between the unloading station and the unloading conveyor belt 4. The first suction cup module 41 and the second suction cup module 42 of the first rotating arm 31 transport two materials from the unloading station to the unloading conveyor belt 4, thereby increasing the distance between the materials.
[0063] The loading conveyor belt 3 and the unloading conveyor belt 4 are also prior art and can also be replaced by other conveying mechanisms.
[0064] Mechanical positioning or visual positioning is also a prior art. For example, the mechanical positioning may be a centering clamp module of the prior art, and the visual positioning may be taking pictures with a CCD camera.
[0065] The above is an embodiment of an application, and those skilled in the art may also select a variable-length transport device 1 in other embodiments as needed.
[0066] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.
Claims
1. A variable-length transport device, comprising a rotary drive mechanism and a rotating arm, wherein the rotating arm is connected to the rotary drive mechanism and rotates under the drive of the rotary drive mechanism, and a material picking and placing mechanism is arranged at one end of the rotating arm away from the rotary drive mechanism. Features: The rotating arm comprises a main arm connected to the output shaft of the rotating drive mechanism, and a connecting arm arranged at the main arm away from the rotation center, wherein the connecting arm and the main arm are arranged vertically. Two material picking and placing mechanisms are arranged on the connecting arm at intervals along its extension direction, namely, a first material picking and placing mechanism and a second material picking and placing mechanism, and at least one material picking and placing mechanism is connected to the variable distance module; A variable pitch module is also provided on the rotating arm, and the variable pitch module includes a fixed synchronous pulley, a rotating synchronous pulley, a synchronous belt, a connecting rod and a linear guide module, wherein the fixed synchronous pulley is provided on the base and does not rotate with the rotating arm, the rotating synchronous pulley is provided on the connecting arm, the synchronous belt is sleeved on the fixed synchronous pulley and the rotating synchronous pulley, one end of the connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on the material taking and unloading mechanism connected to the variable pitch module; The linear guide mechanism is arranged on the connecting arm, located on the side of the synchronous pulley close to the material picking and placing mechanism connected to the variable pitch module, and extends along the extending direction of the connecting arm; The material picking and placing mechanism moves along the extending direction of the connecting arm through the linear guide module.
2. A variable distance transport device according to claim 1, Features: The linear guide mechanism is a slide rail and slider module, the slide rail is arranged along the extension direction of the connecting arm, and the material picking and placing mechanism is arranged on the slider and slides along the slide rail.
3. A variable distance transport device according to claim 1, Features: The first material picking and placing mechanism and the second material picking and placing mechanism are both connected to the variable distance module; The pitch-changing module comprises a fixed synchronous pulley, a rotating synchronous pulley, a synchronous belt, a first connecting rod, a second connecting rod, a first linear guide mechanism and a second linear guide mechanism; One end of the first connecting rod is hinged on the rotating synchronous belt pulley, and the other end is hinged on the first material taking and unloading mechanism; one end of the second connecting rod is hinged on the rotating synchronous belt pulley, and the other end is hinged on the second material taking and unloading mechanism; The first linear guide module and the second linear guide module are arranged on both sides of the first connecting arm and extend along the extension direction of the connecting arm; the first material picking and placing mechanism moves along the extension direction of the connecting arm through the first linear guide module, and the second material picking and placing mechanism moves along the extension direction of the connecting arm through the second linear guide module.
4. A variable distance transport device according to claim 1, Features: The material taking and placing mechanism is a suction cup module, the suction cup of the suction cup module is arranged below the connecting arm, and the adsorption surface is arranged downward; the rotation driving mechanism is a motor.
5. A variable distance transport device according to any one of claims 1 to 4, Features: The rotating arm comprises a first rotating arm and a second rotating arm, and the first rotating arm and the second rotating arm are arranged at 30 degrees, 60 degrees, 90 degrees and 120 degrees with the rotation center as the vertex.
6. The variable distance transport device according to claim 5, Features: The first rotating arm and the second rotating arm are arranged at 90 degrees with the rotation center as the vertex.
7. A variable distance transport device according to claim 5, Features: A variable pitch module is arranged on the first rotating arm, and the second rotating arm includes a second main arm connected to the output shaft of the rotating drive device, and a second connecting arm arranged on the second main arm away from the rotation center. The second connecting arm is arranged perpendicular to the first main arm, and the corresponding first material picking and placing mechanism and second material picking and placing mechanism are respectively fixed on the second connecting arm at intervals along the extension direction of the second connecting arm.
8. A variable distance transport device according to claim 5, Features: The first rotating arm and the second rotating arm are both provided with a variable pitch module. The synchronous belt on the second rotating arm is staggered in height from the synchronous belt on the first rotating arm and is sleeved on the same fixed synchronous belt wheel.
9. A laser processing device, Features: The variable-length transport device comprises any one of claims 1 to 8, and further comprises a rotary processing table, and a loading conveyor belt and a unloading conveyor belt; Among them, the rotating processing table has one or more processing tables, and can be rotated to a loading station, a processing station and a unloading station, loading is performed at the loading station, processing is performed at the processing station, and unloading is performed at the unloading station, wherein a laser processing module is arranged above the processing station; The loading conveyor belt and the unloading conveyor belt are respectively arranged in front of the loading station and behind the unloading station to convey two materials side by side; The variable distance transport device is arranged between the loading conveyor belt and the loading station of the rotary processing table, and / or between the unloading station of the rotary processing table and the unloading conveyor belt.
10. The laser processing equipment according to claim 9, Features: A material alignment device is provided between the loading conveyor belt and the loading station of the rotary processing table to carry the battery cells and perform mechanical or visual positioning; A variable-pitch handling device is arranged between the feeding conveyor belt, the feeding station of the rotary processing table and the material alignment device. During the reciprocating motion of the feeding conveyor belt and the material alignment device, the second rotating arm reciprocates between the material alignment device and the feeding station of the rotary processing table. The first rotating arm is provided with a variable-pitch module, while the second rotating arm is not provided with a variable-pitch module. A variable distance transport device is arranged between the unloading station and the unloading conveyor belt, comprising a rotating arm, on which a variable distance module is arranged.