Bidirectional stepless variable-pitch clamping device and method

Abstract

The bidirectional stepless variable-pitch clamping device comprises a supporting plate and clamping assemblies, each clamping assembly is provided with a supporting shaft, each supporting shaft is pivotally provided with two scissor arms which are arranged in a crossed mode, and the scissor arms on the two clamping assemblies are mutually configured to define a parallelogram; a transfer plate is arranged on the supporting plate and is fixedly connected with the supporting shaft; a sliding plate is further arranged on one side of the supporting plate, a set of clamping assemblies are arranged on the sliding plate, the clamping assemblies on the sliding plate correspond to the clamping assemblies on the supporting plate in a one-to-one mode, and the supporting shaft is sleeved with the clamping assemblies on the sliding plate in an empty mode. The clamping device has the main beneficial effects that the design is exquisite, and the distance between the clamping assemblies can be adjusted by driving the supporting shaft to move along the central axis of the supporting plate; and the sliding plate surface or the driven plate is driven to move back to the supporting plate, so that the row pitch of the clamping assemblies can be adjusted, the clamping problem of non-uniform distances of supplied battery materials is solved, the structure is compact, the layout is reasonable, and the occupied space is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of production equipment, and in particular, to a bidirectional stepless variable pitch clamping device. Background Art

[0002] A lithium battery is a primary battery with a lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution, which is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries. The inventor of the lithium battery is Edison. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high requirements for the environment. Therefore, lithium batteries have not been applied for a long time. With the development of microelectronics technology at the end of the 20th century, the number of miniaturized devices has increased day by day, posing very high requirements for power sources.

[0003] Subsequently, lithium batteries entered the large-scale practical stage. During the production process of lithium batteries, it is necessary to clamp the lithium batteries, which facilitates precise processing and handling of the lithium batteries. For example, the authorized publication number CN213106415U discloses a batch clamping device for lithium battery production, including a horizontal clamping mechanism, on which a vertical clamping mechanism is fixed. The horizontal clamping mechanism includes a first U-shaped plate, a first handle, a first clamping component, and a second clamping component. One surface of the first handle is fixed with a first threaded screw rod, and the other end of the first threaded screw rod penetrates through one surface of the first U-shaped plate and extends into the interior of the first U-shaped plate. One inner wall of the first U-shaped plate is fixed with a first sliding rod, and the joint of the first threaded screw rod and the first U-shaped plate is rotationally connected through a bearing. However, this device is suitable for clamping batteries arranged at equal intervals. However, in actual applications, the batteries are provided by different manufacturers, so the spacing and row spacing of the batteries provided by different manufacturers are different. This device cannot clamp all the batteries provided by different manufacturers, has poor applicability, and can only clamp in a single row, greatly reducing the working efficiency and having great limitations. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a bidirectional stepless variable pitch clamping device and method.

[0005] The purpose of the present invention is achieved through the following technical solutions: A bidirectional stepless variable pitch clamping device, comprising a support plate and a set of clamping components arranged thereon and slidable along its central axis. A support shaft is provided on each of the clamping components. Two cross - arranged scissor arms are pivotally provided on the support shaft. The end sides of the scissor arms are pivotally connected to the end sides of the scissor arms on the adjacent clamping components. The scissor arms on the two clamping components are mutually configured to define a parallelogram. A transfer plate slidable along its central axis is provided on the support plate, and the transfer plate is fixedly connected to any one of the support shafts. On one side of the support plate, there is also a sliding plate movable towards or away from it. A set of the clamping components slidable along its central axis is provided on the sliding plate. The clamping components on the sliding plate correspond one by one to the clamping components on the support plate, and the clamping components on the sliding plate are sleeved loosely on the support shafts.

[0006] Preferably, sliding rails parallel to the central axis are provided at the bottoms of the support plate and the sliding plate. Sliders adapted to the sliding rails are provided on the sliding rails, and the clamping components are fixedly provided on the sliders.

[0007] Preferably, a transmission frame is fixedly provided on the support plate. A transmission lead screw is pivotally provided on the transmission frame, and the central axis of the transmission lead screw is parallel to the central axis of the support plate. A transmission motor fixedly provided on the support plate is provided at one end of the transmission lead screw. A transmission nut in screw drive with the transmission lead screw is provided on the transmission lead screw, and the transfer plate is fixedly provided on the transmission nut.

[0008] Preferably, a driving frame is fixedly provided on the support plate. A driving lead screw is pivotally provided on the driving frame, and the central axis of the driving lead screw is perpendicular to the central axis of the support plate. A driving nut in screw drive with the driving lead screw is provided on the driving lead screw, and a connecting plate is fixedly provided on the driving nut. The connecting plate is fixedly connected to the sliding plate.

[0009] Preferably, a guide rail is fixedly provided on the support plate. A guide block adapted to the guide rail is provided on the guide rail, and the sliding plate is fixedly provided on the guide block.

[0010] Preferably, the clamping component at least comprises a fixing plate fixedly provided on the slider. A clamping cylinder is fixedly provided on the fixing plate, and a clamping plate is fixedly provided on the cylinder shaft of the clamping cylinder.

[0011] Preferably, a support plate is fixedly provided on the fixing plate, and an infrared sensor is fixedly provided on the support plate.

[0012] Preferably, a CCD camera is fixedly provided on the support plate.

[0013] A bidirectional stepless variable pitch clamping method, comprising the following steps: S1. The manipulator controls the support plate to move to directly above the battery pack, and the CCD camera performs visual recognition on the position of the battery pack; S2. The drive motor starts, drives the transfer plate to move along the central axis of the support plate through the drive lead screw and the drive nut, the movement of the transfer plate drives the support shaft arranged thereon to move synchronously with it, and the movement of the support shaft drives the adjacent support shaft to move through the scissors arm, so as to realize the adjustment of the distance between adjacent clamping assemblies; S3. Control the drive lead screw to rotate, so as to drive the sliding plate to move through the drive nut and the connecting plate, and realize the adjustment of the distance between the support plate and the sliding plate; S4. The clamping cylinder starts, and controls the clamping plate to complete the clamping of the battery pack.

[0014] The beneficial effects of the present invention are mainly reflected in: 1. Exquisite design. Driving the support shaft to move along the central axis of the support plate can adjust the distance between the clamping assemblies; driving the sliding plate to move towards or away from the support plate can realize the adjustment of the row spacing of the clamping assemblies, so as to solve the clamping problem of inconsistent incoming battery spacing. This structure is compact and reasonably arranged, reducing the occupied space. In addition, this device can realize the simultaneous clamping of two rows, greatly improving the working efficiency and facilitating batch use.

[0015] 2. The scissors arms cooperate with each other to form a parallelogram, which can ensure that the opposite sides are always parallel during the process of distance change, and has good stability, suitable for the scenario of rigid translation. In addition, the battery load is evenly distributed on the scissors arms, reducing local stress concentration and extending the service life.

[0016] 3. The use of lead screw drive has the characteristics of high transmission accuracy and strong load-bearing capacity, which can greatly improve the movement accuracy, facilitate the accurate clamping of the battery pack by the clamping assembly 2, and improve the clamping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present invention will be further described below with reference to the drawings: Figure 1 : The perspective view of the preferred embodiment of the present invention; Figure 2 : The cross-sectional view of the preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0021] As Figures 1 to 2 shown, the present invention discloses a bidirectional stepless variable pitch clamping device, which includes a support plate 1 and a set of clamping components 2 arranged thereon and slidable along its central axis. The clamping component 2 at least includes a fixing plate fixed on a slider 71. A clamping cylinder 22 is fixed on the fixing plate 21, and a clamping plate 23 is fixed on the cylinder shaft of the clamping cylinder 22. The structure of the clamping cylinder controlling the clamping plate is a prior art, and the present invention will not elaborate on it here. Of course, the clamping component 2 can also be other structures, all of which fall within the protection scope of the present invention and will not be elaborated on here.

[0022] A support plate 24 is fixed on the fixing plate 21, and an infrared sensor 25 is fixed on the support plate 24. The setting of the infrared sensor 25 can monitor the position of the clamping plate 23 in real time to ensure the accuracy of clamping.

[0023] In the present invention, a support shaft 3 is provided on each of the clamping components 2. Two cross-shaped scissors arms 4 are pivotally provided on the support shaft 3. The end sides 41 of the scissors arms 4 are pivotally connected to the end sides 41 of the scissors arms 4 on the adjacent clamping components 2. The scissors arms 4 on the two clamping components 2 are configured to define a parallelogram. The above design is ingenious and reasonable. The scissors arms cooperate with each other to form a parallelogram, which can ensure that the opposite sides are always parallel during the process of variable pitch, and has good stability, and is suitable for the scenario of rigid translation. In addition, the battery load is evenly distributed on the scissors arms, reducing local stress concentration and extending the service life.

[0024] A transfer plate 5 capable of sliding along its central axis is provided on the support plate 1, and the transfer plate 5 is fixedly connected to any one of the support shafts 3. Specifically, a slide rail 7 parallel to the central axis of the support plate 1 is provided on the support plate 1, and a slider 71 adapted to the slide rail 7 is provided on the slide rail 7. The clamping assembly 2 is fixedly arranged on the slider 71. A transmission frame 11 is fixedly arranged on the support plate 1, and a transmission lead screw 12 is pivotally arranged on the transmission frame 11. The central axis of the transmission lead screw 12 is parallel to the central axis of the support plate 1. One end of the transmission lead screw 12 is provided with a transmission motor 13 fixedly arranged on the support plate 1. A transmission nut 14 in screw transmission with the transmission lead screw 12 is arranged on the transmission lead screw 12, and the transfer plate 5 is fixedly arranged on the transmission nut 14. The above-mentioned use of screw transmission is due to its high transmission precision and strong load-bearing characteristics, which can greatly improve the movement precision, facilitate the accurate clamping of the battery pack by the clamping assembly 2, and improve the clamping accuracy.

[0025] A sliding plate 6 capable of moving towards or away from one side of the support plate 1 is further provided on the support plate 1. A set of the clamping assemblies 2 capable of sliding along the central axis are arranged on the sliding plate 6. The clamping assemblies 2 on the sliding plate 6 correspond to the clamping assemblies 2 on the support plate 1 one by one, and the clamping assemblies 2 on the sliding plate 6 are sleeved on the support shaft 3 loosely. In the above, by moving the sliding plate 6 towards or away from the support plate 1, the row spacing of the clamping assemblies 2 can be adjusted, so as to meet the incoming material spacing of batteries of different specifications, and it has wide applicability.

[0026] In the above, slide rails 7 parallel to the central axis are arranged at the bottoms of the sliding plates 6, and sliders 71 adapted to the slide rails 7 are arranged on the slide rails 7. The clamping assemblies 2 are fixedly arranged on the sliders 71. A guide rail 15 is fixedly arranged on the support plate 1, and a guide block 16 adapted to the guide rail 15 is arranged on the guide rail 15. The sliding plate 6 is fixedly arranged on the guide block 16. The cooperation between the guide block and the guide rail can ensure the stability of the sliding of the sliding plate 6.

[0027] A driving frame 31 is fixedly arranged on the support plate 1, and a driving lead screw 32 is pivotally arranged on the driving frame 31. The central axis of the driving lead screw 32 is perpendicular to the central axis of the support plate 1. A hand wheel is fixedly arranged at one end of the driving lead screw 32. Of course, it can also be a driving motor, which all belong to the protection scope of the present invention. A driving nut 33 in screw transmission with the driving lead screw 32 is arranged on the driving lead screw 32, and a connecting plate 34 is fixedly arranged on the driving nut 33. The connecting plate 34 is fixedly connected to the sliding plate 6. The above-mentioned use of screw transmission is due to its high transmission precision and strong load-bearing characteristics, which can greatly improve the movement precision, facilitate the accurate clamping of the battery pack by the clamping assembly 2, and improve the clamping accuracy.

[0028] In the present invention, a CCD camera 19 is fixedly provided on the support plate 1. The CCD camera 19 at least includes an image sensor and an analog-to-digital conversion circuit. The image sensor is connected to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is provided with a communication interface. The image sensor converts an external optical signal into an analog signal, and the analog-to-digital conversion circuit converts the analog signal into a digital signal and transmits it to the processor. In the present invention, the use of the CCD camera 19 can meet the illuminance requirements in the industrial manufacturing environment and has relatively high sensitivity. This system uses a communication interface for data transmission, which can effectively prevent interference from other signals and improve the stability of data transmission. At the same time, the CCD camera 19 includes a fuselage and an optical lens connected to the fuselage. The image sensor and the analog-to-digital converter are provided inside the fuselage, and the optical lens converges external light to the image sensor, which is beneficial for the system to collect clear images.

[0029] The working process of the present invention is briefly described below, including the following steps: S1. The manipulator controls the support plate 1 to move directly above the battery pack 100, and the CCD camera 19 performs visual recognition on the position of the battery pack 100. S2. The drive motor 13 is started, and the transfer plate 5 is driven to move along the central axis of the support plate 1 through the drive lead screw 12 and the drive nut 14. The movement of the transfer plate 5 drives the support shaft 3 provided thereon to move synchronously with it. The movement of the support shaft 3 drives the adjacent support shaft 3 to move through the scissors arm 4, thereby realizing the adjustment of the distance between adjacent clamping assemblies 2. S3. Control the drive lead screw 32 to rotate, and thereby drive the sliding plate 6 to move through the drive nut 33 and the connecting plate 34, realizing the adjustment of the distance between the support plate 1 and the sliding plate 6. S4. The clamping cylinder 22 is started, and the clamping plate 23 is controlled to complete the clamping of the battery pack 100.

[0030] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. Bidirectional stepless variable pitch clamping device, comprising a support plate (1) and a set of clamping components (2) arranged thereon and slidable along its central axis, characterized in that: A support shaft (3) is provided on each of the clamping assemblies (2). Two cross - arranged scissor arms (4) are pivotally provided on the support shaft (3). The end sides (41) of the scissor arms (4) are pivotally connected to the end sides (41) of the scissor arms (4) on the adjacent clamping assemblies (2). The scissor arms (4) on the two clamping assemblies (2) are mutually configured to define a parallelogram. A transfer plate (5) that can slide along its central axis is provided on the support plate (1). The transfer plate (5) is fixedly connected to any one of the support shafts (3). On one side of the support plate (1), there is also a sliding plate (6) that can move towards or away from it. A set of the clamping assemblies (2) that can slide along its central axis is provided on the sliding plate (6). The clamping assemblies (2) on the sliding plate (6) correspond one - to - one with the clamping assemblies (2) on the support plate (1), and the clamping assemblies (2) on the sliding plate (6) are sleeved loosely on the support shaft (3).

2. The bidirectional stepless variable pitch clamping device according to claim 1, characterized in that: Sliding rails (7) parallel to their central axes are provided at the bottoms of the support plate (1) and the sliding plate (6). Sliders (71) adapted to the sliding rails (7) are provided on the sliding rails (7). The clamping assemblies (2) are fixedly provided on the sliders (71).

3. The bidirectional stepless variable pitch clamping device according to claim 1, wherein: A transmission frame (11) is fixedly provided on the support plate (1). A transmission lead screw (12) is pivotally provided on the transmission frame (11). The central axis of the transmission lead screw (12) is parallel to the central axis of the support plate (1). One end of the transmission lead screw (12) is provided with a transmission motor (13) fixedly provided on the support plate (1). A transmission nut (14) in screw drive with the transmission lead screw (12) is provided on the transmission lead screw (12). The transfer plate (5) is fixedly provided on the transmission nut (14).

4. The bidirectional stepless variable pitch clamping device according to claim 1, characterized in that: A drive frame (31) is fixedly provided on the support plate (1). A drive lead screw (32) is pivotally provided on the drive frame (31). The central axis of the drive lead screw (32) is perpendicular to the central axis of the support plate (1). A drive nut (33) in screw drive with the drive lead screw (32) is provided on the drive lead screw (32). A connecting plate (34) is fixedly provided on the drive nut (33). The connecting plate (34) is fixedly connected to the sliding plate (6).

5. The bidirectional stepless variable pitch clamping device according to claim 4, characterized in that: A guide rail (15) is fixedly provided on the support plate (1). A guide block (16) adapted to the guide rail (15) is provided on the guide rail (15). The sliding plate (6) is fixedly provided on the guide block (16).

6. The bidirectional stepless variable pitch clamping device according to claim 2, wherein: The clamping assembly (2) at least includes a fixed plate (21) fixedly provided on the slider (71). A clamping cylinder (22) is fixedly provided on the fixed plate (21). A clamping plate (23) is fixedly provided on the cylinder shaft of the clamping cylinder (22).

7. The two-way stepless variable pitch clamping device according to claim 6, wherein: A support plate (24) is fixedly provided on the fixed plate (21). An infrared sensor (25) is fixedly provided on the support plate (24).

8. The bidirectional stepless variable pitch clamping device according to claim 1, wherein: A CCD camera (19) is fixedly provided on the support plate (1).

9. The two-way stepless variable pitch clamping method is characterized in that Including the following steps: S1. The manipulator controls the support plate (1) to move to directly above the battery pack (100), and the CCD camera (19) performs visual recognition on the position of the battery pack (100). S2. The drive motor (13) starts, drives the transfer plate (5) to move along the central axis of the support plate (1) through the drive lead screw (12) and the drive nut (14). The movement of the transfer plate (5) drives the support shaft (3) provided thereon to move synchronously therewith. The movement of the support shaft (3) drives the adjacent support shaft (3) to move through the scissor arm (4), so as to realize the distance adjustment between adjacent clamping assemblies (2). S3. Control the drive lead screw (32) to rotate, so as to drive the sliding plate (6) to move through the drive nut (33) and the connecting plate (34), and realize the distance adjustment between the support plate (1) and the sliding plate (6). S4. The clamping cylinder (22) starts, and controls the clamping plate (23) to complete the clamping of the battery pack (100).

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