A battery casing cutting device and battery production equipment

Abstract

This utility model relates to the field of battery manufacturing technology, specifically to a battery casing cutting device and battery production equipment. It includes: a base, and a rotary drive component disposed on one side of the base; a movable block is slidably connected to the other side of the base, and a cutter is connected to the movable block; the movable block is provided with a first abutment block, a second abutment block, a third abutment block, and a fourth abutment block corresponding to the four opening corners of the battery casing, respectively; a first cam corresponding to the first abutment block, a second cam corresponding to the second abutment block, a third cam corresponding to the third abutment block, and a fourth cam corresponding to the fourth abutment block are also rotatably connected to the base; the first cam, second cam, third cam, and fourth cam are respectively drivenly connected to the rotary drive component; when the rotary drive component operates, it causes the cutter to push and cut diagonally within the battery casing. Using the above method, the shape of the opening corners can be kept unaffected, thereby improving the quality stability of subsequent battery production processes.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a battery casing pushing and cutting device and battery production equipment. Background Technology

[0002] As an energy source, batteries provide stable voltage, stable current, and long-term stable power supply with minimal external influence. Furthermore, batteries have a simple structure, are easy to carry, and are simple to charge and discharge. They are unaffected by external climate and temperature, and their performance is stable and reliable, playing a significant role in all aspects of modern life.

[0003] In the battery production process, the casing needs to be cut to form the required battery casing. Especially for rectangular battery casings, when the rotary cutting device is used for rotary cutting, the cutting tool applies force from the outside of the casing inward to make a circular cut. When cutting from the edge to the opening corner, the opening corner will be continuously squeezed throughout the process, resulting in an irregular shape of the opening corner after cutting, which is not conducive to the quality stability of the subsequent battery production process. Utility Model Content

[0004] This utility model provides a battery casing cutting device and battery production equipment, which can move and cut from the inside of the casing to the four opening corners to ensure that the shape of the opening corners is not affected, thereby improving the quality stability of the subsequent battery production process.

[0005] This utility model discloses a battery casing push-cutting device, comprising: a base, and a rotary drive member disposed on one side of the base; a movable block slidably connected to the other side of the base, and a cutter connected to the movable block; the movable block is provided with a first abutting block, a second abutting block, a third abutting block, and a fourth abutting block corresponding to the four opening corners of the battery casing respectively; the base is also rotatably connected with a first cam corresponding to the first abutting block, a second cam corresponding to the second abutting block, a third cam corresponding to the third abutting block, and a fourth cam corresponding to the fourth abutting block; the first cam, the second cam, the third cam, and the fourth cam are respectively drivenly connected to the rotary drive member; when the rotary drive member is running, it sequentially drives the first cam to abut against the first abutting block, the second cam to abut against the second abutting block, the third cam to abut against the third abutting block, and the fourth cam to abut against the fourth abutting block, so that the cutter pushes and cuts the battery casing diagonally.

[0006] Optionally, the first cam, the second cam, the third cam, and the fourth cam each include a supporting section, a guiding section, and a clearance section connected sequentially on the outer ring; in the initial state, the guiding section of the first cam abuts against the first supporting block, the boundary between the clearance section and the guiding section of the second cam is abutted against the second supporting block, the boundary between the clearance section and the guiding section of the third cam is abutted against the third supporting block, and the guiding section of the fourth cam abuts against the fourth supporting block.

[0007] Optionally, the first cam is rotatably connected to the base via a first rotating shaft, the second cam is rotatably connected to the base via a second rotating shaft, the third cam is rotatably connected to the base via a third rotating shaft, and the fourth cam is rotatably connected to the base via a fourth rotating shaft; a first transmission gear is connected to the first rotating shaft, a second transmission gear is connected to the second rotating shaft, a third transmission gear is connected to the third rotating shaft, and a fourth transmission gear is connected to the fourth rotating shaft; a drive gear is connected to the rotary drive component, and the first, second, third, and fourth transmission gears respectively mesh with the outer ring of the drive gear.

[0008] Optionally, the movable block is provided with a plurality of first receiving slots, and each first receiving slot is provided with a slot on its side. The first abutting block, the second abutting block, the third abutting block and the fourth abutting block are respectively engaged with the corresponding slots. The first cam, the second cam, the third cam and the fourth cam are respectively housed in the corresponding first receiving slots.

[0009] Optionally, a protective shell is provided on the base, the rotary drive component is connected to the base through the protective shell, and the drive gear, the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear are located inside the protective shell.

[0010] Optionally, a limiting frame is also provided on the base, the limiting frame surrounds the outer ring of the movable block, a protruding edge is formed on the limiting frame, and the movable block is held between the protruding edge and the base in the thickness direction.

[0011] Optionally, the base is further provided with a plurality of wear-resistant blocks, and the movable block abuts against the wear-resistant blocks on the side facing the base.

[0012] Optionally, the movable block is provided with a plurality of second receiving slots corresponding one-to-one with the first receiving slot. Each second receiving slot is provided with a first abutting block, a second abutting block, a third abutting block, and a fourth abutting block, as well as a first cam corresponding to the first abutting block, a second cam corresponding to the second abutting block, a third cam corresponding to the third abutting block, and a fourth cam corresponding to the fourth abutting block. At the corresponding positions of the second receiving slots, a first transmission gear connected to the first cam, a second transmission gear connected to the second cam, a third transmission gear connected to the third cam, and a fourth transmission gear connected to the fourth cam are also provided, and two first transmission gears are correspondingly meshed, two second transmission gears are correspondingly meshed, two third transmission gears are correspondingly meshed, and two fourth transmission gears are correspondingly meshed.

[0013] Optionally, the base is further provided with an inductive switch, and a connecting shaft is provided on one of the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear, and an inductive block corresponding to the inductive switch is provided on the connecting shaft.

[0014] Optionally, the cutter is parallelogram-shaped.

[0015] This utility model also discloses a battery production equipment, including the battery casing pushing and cutting device described in any one of the above.

[0016] The beneficial effects of the battery casing pushing and cutting device and battery production equipment provided in this utility model embodiment are as follows: A rotary drive member is provided on one side of the base, which drives the first cam, second cam, third cam, and fourth cam to rotate when the rotary drive member is activated. During rotation, the first cam first abuts against the first abutting block, and the rotation of the cam pushes the first abutting block to move the moving block in a specific direction. Subsequently, the first cam disengages from the abutting state, and the second cam enters the abutting state against the second abutting block, continuing to push the moving block. This process is repeated, with the third and fourth cams successively completing their abutting actions against their corresponding abutting blocks. In this way, the inner side of the battery casing can be pushed and cut. Furthermore, the pushing process causes the moving block to move along a diagonal path. During the pushing and cutting process, the cutter only contacts the cutting surface, avoiding the damage and deformation of the battery casing caused by applying force only from one side as in transmission systems. This application uses a multi-stage inner cutting method, which also avoids excessive resistance caused by inserting too deeply into the battery casing at once, ensuring that the opening angle shape is not affected, thereby improving the quality stability of the subsequent battery production process. Attached Figure Description

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1This is one of the structural schematic diagrams of the battery casing pushing and cutting device provided in this embodiment of the utility model; Figure 2 This is the second schematic diagram of the battery casing pushing and cutting device provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the connection structure at the moving block provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first cam provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection structure of the movable block in its initial position according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the connection structure of the movable block in the first pushing and cutting position according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the connection structure of the movable block in the second pushing and cutting position according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure of the movable block in the third pushing and cutting position according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the connection structure of the movable block in the fourth pushing and cutting position according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the transmission structure at the drive gear provided in an embodiment of this utility model; Figure 11 This is a schematic diagram of the structure of the base and the moving block cooperating according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the connection between the base and the limiting frame provided in this embodiment of the utility model.

[0018] The labels for the attached figures are as follows: 100. Battery casing pushing and cutting device; 105. Battery casing; 1052. Opening angle; 110. Base; 111. Protective shell; 112. First cam; 113. First rotating shaft; 1132. First transmission gear; 1122. Supporting section; 1124. Guide section; 1126. Clearance section; 114. Second cam; 115. Second rotating shaft; 1152. Second transmission gear; 116. Third cam; 117. Third rotating shaft; 1172. Third transmission gear; 118. Fourth cam; 119. Fourth rotating shaft; 1192. Fourth transmission gear; 120. Rotary drive component; 122. Drive gear; 130. Moving block; 131. First receiving groove; 1312. Slot; 132. First abutment block; 133. Second receiving groove; 134. Second abutment block; 136. Third abutment block; 138. Fourth abutment block; 140. Cutter; 150. Limiting frame; 152. Protruding edge; 160. Wear-resistant block; 170. Inductive switch; 172. Connecting shaft; 174. Inductive block. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] This utility model embodiment provides a battery casing push-cutting device 100, including: a base 110, and a rotary drive 120 disposed on one side of the base 110; a movable block 130 is slidably connected to the other side of the base 110, and a cutter 140 is connected to the movable block 130; the movable block 130 is provided with a first abutment block 132, a second abutment block 134, a third abutment block 136, and a fourth abutment block 138 corresponding to the four opening corners 1052 of the battery casing 105, respectively; a first cam 112 corresponding to the first abutment block 132 and a second cam 138 corresponding to the second abutment block 134 are also rotatably connected to the base 110. 14. A third cam 116 corresponding to the third abutment block 136, and a fourth cam 118 corresponding to the fourth abutment block 138; the first cam 112, the second cam 114, the third cam 116 and the fourth cam 118 are respectively connected to the rotary drive member 120 for transmission; when the rotary drive member 120 is running, it sequentially drives the first cam 112 to abut against the first abutment block 132, the second cam 114 to abut against the second abutment block 134, the third cam 116 to abut against the third abutment block 136, and the fourth cam 118 to abut against the fourth abutment block 138, so that the cutter 140 pushes and cuts in the diagonal direction inside the battery case 105.

[0021] Specifically, the rotary drive 120 can typically employ a servo motor or a stepper motor to provide precise speed and steering control, and output stable rotational power to provide the power foundation for the battery casing pushing and cutting device 100. When the rotary drive 120 is running, it drives the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 to rotate. At this time, the first abutting block 132, the second abutting block 134, the third abutting block 136, and the fourth abutting block 138, mounted on the moving block 130, will be driven to move along a specific path. Specifically, the first cam 112 first abuts against the first abutting block 132, then the second cam 114 abuts against the second abutting block 134, then the third cam 116 abuts against the third abutting block 136, and finally the fourth cam 118 abuts against the fourth abutting block 138 to complete the entire pushing and cutting process. In practical applications, the contours of the first cam 112, the second cam 114, the third cam 116 and the fourth cam 118 can be kept consistent. They can be installed with a specific phase difference to achieve sequential abutment and push actions.

[0022] It should be noted that the cutter 140 can be directly connected to the moving block 130, or it can be connected through other commonly used telescopic or support structures to meet the pushing and cutting needs in different environments, thereby improving the applicability of the battery case pushing and cutting device 100.

[0023] The battery casing pushing and cutting device 100 provided in this application embodiment drives the first cam 112, the second cam 114, the third cam 116 and the fourth cam 118 to rotate when the rotating drive member 120 is activated. During the rotation process, the first cam 112 first abuts against the first abutting block 132. The rotation of the first cam 112 pushes the first abutting block 132 to drive the moving block 130 to move in a specific direction. Then, the first cam 112 disengages from the abutting state, and the second cam 114 enters the abutting state with the second abutting block 134, continuing to push the moving block 130. Similarly, the third cam 116 and the fourth cam 118 successively complete the abutting action with the corresponding abutting blocks. In this way, the inner side of the battery case 105 can be pushed and cut. The above-mentioned pushing process causes the moving block 130 to move along a diagonal path. During the pushing and cutting process, the cutter only contacts the cutting surface. Unlike the transmission form, which only uses one side to apply force to cut and causes damage and deformation to the battery case 105, this application adopts the form of multiple inner side cutting. It also avoids excessive resistance caused by inserting too deeply into the battery case 105 at once, so as to ensure that the shape of the opening angle 1052 is not affected, thereby improving the quality stability of the subsequent battery production process.

[0024] like Figure 4 and Figure 5As shown, the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 each include a supporting section 1122, a guiding section 1124, and a clearance section 1126 connected sequentially on the outer ring. In the initial state, the guiding section 1124 of the first cam 112 abuts against the first supporting block 132, the boundary between the clearance section 1126 and the guiding section 1124 of the second cam 114 is at the second supporting block 134, the boundary between the clearance section 1126 and the guiding section 1124 of the third cam 116 is at the third supporting block 136, and the guiding section 1124 of the fourth cam 118 abuts against the fourth supporting block 138.

[0025] Specifically, the outer contours of the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 are the same, and they are all connected in sequence by a supporting section 1122, a guiding section 1124, and a clearance section 1126, differing only in their installation phase. In practical applications, in the initial setup, to avoid interference between the cutter 140 and the side wall of the battery casing 105, and to facilitate alignment between the cutter 140 and the battery casing 105, the cutter 140 is positioned at the center (…). Figure 5 The relative positions of the cutting blade 140 and the battery casing 105 are determined by the following: the guide section 1124 of the first cam 112 abuts against the first abutting block 132; the junction of the clearance section 1126 of the second cam 114 and the guide section 1124 abuts against the second abutting block 134; the junction of the clearance section 1126 of the third cam 116 and the guide section 1124 abuts against the third abutting block 136; and the guide section 1124 of the fourth cam 118 abuts against the fourth abutting block 138. As the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 rotate, control of the moving block 130 along a specific path is achieved.

[0026] The supporting section 1122 is the area in the cam profile that directly contacts the supporting block and generates a push. Its profile curve is usually designed as an eccentric arc or an involute to ensure that the supporting block receives uniform thrust and smooth stroke changes during cam rotation. The guide section 1124 is located between the supporting section 1122 and the clearance section 1126. Its profile curve is a smoothly transitioning arc. Its main function is to achieve a smooth transition of the supporting block from a non-contact state to a supporting state (or from a supporting state to a non-contact state), avoiding rigid impact at the moment of contact between the cam and the supporting block. The radius of curvature of the guide section 1124 is usually larger than that of the supporting section 1122, ensuring that the frictional force changes gradually during contact and reducing component wear. The clearance section 1126 is the area in the cam profile that does not contact the supporting block. It ensures that when the cam rotates to the clearance section 1126, there is a gap (usually 0.5mm-1mm) between the cam and the supporting block, and no force is exerted on the supporting block, leaving space for the supporting action of other cams.

[0027] like Figures 6 to 9 As shown, using the aforementioned initial phase coordination, when the rotary drive 120 operates, the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 all move along... Figure 5 As shown, rotating clockwise will cause it to rotate to... Figure 6 As shown, the first cam 112's abutting section 1122 abuts against the corresponding abutting block, causing the moving block 130 to move to the upper left corner. As the rotary drive 120 continues to rotate, the second cam 114's abutting section 1122 then abuts against the corresponding abutting block (e.g., ...). Figure 7 As shown), this causes the moving block 130 to move to the lower right corner. During this movement, the moving block 130 will pass through the position of its initial state. As the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 continue to rotate clockwise, the moving block 130 will return to its initial position and then move to the lower left corner (as shown). Figure 8 (As shown), then, moving block 130 returns to its initial position and moves to the upper right corner (as shown). Figure 9 (As shown). After the first cam 112, the second cam 114, the third cam 116 and the fourth cam 118 have rotated one revolution, the moving block 130 will return to its initial position to facilitate the next push-cut process.

[0028] like Figure 3 and Figure 10 As shown, the first cam 112 is rotatably connected to the base 110 via the first rotating shaft 113, the second cam 114 is rotatably connected to the base 110 via the second rotating shaft 115, the third cam 116 is rotatably connected to the base 110 via the third rotating shaft 117, and the fourth cam 118 is rotatably connected to the base 110 via the fourth rotating shaft 119; a first transmission gear 1132 is connected to the first rotating shaft 113, a second transmission gear 1152 is connected to the second rotating shaft 115, a third transmission gear 1172 is connected to the third rotating shaft 117, and a fourth transmission gear 1192 is connected to the fourth rotating shaft 119; a drive gear 122 is connected to the rotary drive component 120, and the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172, and the fourth transmission gear 1192 respectively mesh with the outer ring of the drive gear 122.

[0029] Specifically, the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172, and the fourth transmission gear 1192 have the same number of teeth, module, and pressure angle, and their meshing parameters are matched with those of the drive gear 122. This ensures that when the drive gear 122 rotates one revolution, the rotation angles of the four transmission gears are exactly the same, avoiding phase deviations in cam rotation due to differences in transmission ratios. The outer ring meshing method ensures that the rotation directions of the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172, and the fourth transmission gear 1192 are completely consistent, ensuring that the rotation directions of the four cams are the same, providing a basis for sequential abutment actions.

[0030] like Figure 5 and Figure 6 As shown, the movable block 130 has multiple first receiving slots 131, and each first receiving slot 131 has a slot 1312 on its side. The first abutting block 132, the second abutting block 134, the third abutting block 136 and the fourth abutting block 138 are respectively engaged with the corresponding slot 1312. The first cam 112, the second cam 114, the third cam 116 and the fourth cam 118 are respectively housed in the corresponding first receiving slot 131.

[0031] Specifically, the number of first receiving slots 131 on the movable block 130 is the same as the number of cams (i.e., 4). The shape of each first receiving slot 131 needs to allow for rotation space when the cam rotates, and its depth is slightly greater than the thickness of the cam to ensure that the cam can be completely received within the first receiving slot 131, avoiding interference between the cam and other parts of the movable block 130 or the base 110. In addition, the slot 1312 can be set in the form of a dovetail groove, which makes it simpler and more convenient to cooperate with the abutment block. It is understood that the first abutment block 132, the second abutment block 134, the third abutment block 136 and the fourth abutment block 138 have abutment surfaces that cooperate with the cams to ensure the stability of the above cooperation.

[0032] like Figure 1 and Figure 10 As shown, a protective shell 111 is provided on the base 110, and the rotary drive component 120 is connected to the base 110 through the protective shell 111. The drive gear 122, the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172 and the fourth transmission gear 1192 are located inside the protective shell 111.

[0033] Specifically, the rotary drive component 120 is connected to the base 110 via a protective shell 111, while the drive gear 122, the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172, and the fourth transmission gear 1192 are completely housed within the protective shell 111. This design keeps the entire gear transmission system in a closed environment, which helps to avoid the influence of the external environment, and lubricating grease can be injected into the protective shell 111 to reduce friction and noise.

[0034] like Figure 11 and Figure 12 As shown, a limiting frame 150 is also provided on the base 110. The limiting frame 150 surrounds the outer ring of the moving block 130. A protruding edge 152 is formed on the limiting frame 150. The moving block 130 is held between the protruding edge 152 and the base 110 in the thickness direction.

[0035] Specifically, by setting the limiting frame 150 around the movable block 130, and holding the movable block 130 in the thickness direction between the protruding edge 152 and the base 110, the sliding of the movable block 130 can be limited by the limiting frame 150. The protruding edge 152 restricts the movement of the movable block 130 in the thickness direction. The limiting frame 150 surrounds the outer ring of the movable block 130, protects and limits the sides of the movable block 130, and ensures that the movable block 130 slides in the plane according to the set path, overcoming the limitation of traditional guide rails that can only achieve sliding in one direction.

[0036] like Figure 12 As shown, a plurality of wear-resistant blocks 160 are also provided on the base 110, and the moving block 130 abuts against the wear-resistant block 160 on the side facing the base 110.

[0037] Specifically, the side of the movable block 130 facing the base 110 abuts against the wear-resistant block 160, avoiding direct contact between the movable block 130 and the base 110, which helps to protect the base 110. When the wear-resistant block 160 wears out after long-term use, it can simply be replaced.

[0038] like Figures 5 to 9As shown, the movable block 130 has multiple second receiving slots 133 corresponding one-to-one with the first receiving slot 131. Each second receiving slot 133 is provided with a first abutting block 132, a second abutting block 134, a third abutting block 136, and a fourth abutting block 138, as well as a first cam 112 corresponding to the first abutting block 132, a second cam 114 corresponding to the second abutting block 134, a third cam 116 corresponding to the third abutting block 136, and a fourth cam 118 corresponding to the fourth abutting block 138. At the corresponding position of the second receiving groove 133, a first transmission gear 1132 connected to the first cam 112, a second transmission gear 1152 connected to the second cam 114, a third transmission gear 1172 connected to the third cam 116, and a fourth transmission gear 1192 connected to the fourth cam 118 are also provided, and the two first transmission gears 1132 are meshed, the two second transmission gears 1152 are meshed, the two third transmission gears 1172 are meshed, and the two fourth transmission gears 1192 are meshed.

[0039] Specifically, each second receiving slot 133 is provided with a first abutment block 132, a second abutment block 134, a third abutment block 136, and a fourth abutment block 138, as well as corresponding first cam 112, second cam 114, third cam 116, and fourth cam 118, so that the force transmitted to the moving block 130 in the same direction is set to two. That is, two first transmission gears 1132 mesh with each other, two second transmission gears 1152 mesh with each other, two third transmission gears 1172 mesh with each other, and two fourth transmission gears 1192 mesh with each other. During transmission, the outer ring of the drive gear 122 directly drives the meshing first transmission gears 1132, second transmission gears 1152, third transmission gears 1172, and fourth transmission gears 1192 to rotate clockwise, while the first transmission gears 1132, second transmission gears 1152, third transmission gears 1172, and fourth transmission gears 1192, which are indirectly driven by the drive gear 122, rotate counterclockwise. At this time, the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 in the second receiving groove 133 also rotate counterclockwise synchronously. To ensure the consistency of the phase position with the corresponding first abutment block 132, second abutment block 134, third abutment block 136, and fourth abutment block 138, it is only necessary to install the first cam 112, the second cam 114, the third cam 116, and the fourth cam 118 in the second receiving groove 133 on both sides. In this way, the double abutment configuration is beneficial for providing a more stable and reliable movement of the moving block 130.

[0040] like Figure 1As shown, a sensor switch 170 is also provided on the base 110. A connecting shaft 172 is provided on one of the first transmission gear 1132, the second transmission gear 1152, the third transmission gear 1172 and the fourth transmission gear 1192. A sensing block 174 corresponding to the sensor switch 170 is provided on the connecting shaft 172.

[0041] Specifically, the inductive switch 170 can be a Hall switch or a proximity switch. When a Hall switch is used, a corresponding magnetic sensing area needs to be set on the sensing block 174. In practical applications, through the cooperation of the inductive switch 170 and the sensing block 174, the sensing block 174 will pass through the inductive switch 170 once for each rotation, triggering the inductive switch 170 to output an electrical signal. This is beneficial for phase detection or calibration operations during reset.

[0042] In an optional embodiment of this application, the cutter 140 is a parallelogram.

[0043] By adopting the above form, when the cutter 140 moves in the four opening angles 1052 directions, it can first push and cut locally, and then gradually increase the pushing and cutting area. This avoids excessive resistance caused by contacting too many positions at the same time, which would affect the pushing and cutting effect. It can also better reduce the deformation of the opening angles 1052 and reduce the pushing and cutting resistance.

[0044] This utility model also discloses a battery production apparatus, including the battery casing pushing and cutting device 100 in the foregoing embodiments. This battery production apparatus has the same structure and beneficial effects as the battery casing pushing and cutting device 100 in the foregoing embodiments. The structure and beneficial effects of the battery casing pushing and cutting device 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0045] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A battery casing pushing and cutting device, characterized in that, include: The base includes a base and a rotary drive unit disposed on one side of the base. A movable block is slidably connected to the other side of the base, and a cutter is connected to the movable block. The movable block is provided with a first abutment block, a second abutment block, a third abutment block, and a fourth abutment block corresponding to the four opening corners of the battery casing, respectively. The base is also rotatably connected with a first cam corresponding to the first abutment block, a second cam corresponding to the second abutment block, a third cam corresponding to the third abutment block, and a fourth cam corresponding to the fourth abutment block. The first cam, the second cam, the third cam, and the fourth cam are respectively connected to the rotary drive unit. When the rotary drive unit is running, it sequentially drives the first cam to abut against the first abutment block, the second cam to abut against the second abutment block, the third cam to abut against the third abutment block, and the fourth cam to abut against the fourth abutment block, so that the cutter pushes and cuts diagonally inside the battery casing.

2. The battery case push-cut apparatus according to claim 1, characterized by The first cam, the second cam, the third cam, and the fourth cam each include a supporting section, a guiding section, and a clearance section connected sequentially on the outer ring. In the initial state, the guiding section of the first cam abuts against the first supporting block, the boundary between the clearance section and the guiding section of the second cam is abutted against the second supporting block, the boundary between the clearance section and the guiding section of the third cam is abutted against the third supporting block, and the guiding section of the fourth cam abuts against the fourth supporting block.

3. The battery case push-cut apparatus according to claim 2, characterized by The first cam is rotatably connected to the base via a first rotating shaft, the second cam is rotatably connected to the base via a second rotating shaft, the third cam is rotatably connected to the base via a third rotating shaft, and the fourth cam is rotatably connected to the base via a fourth rotating shaft; a first transmission gear is connected to the first rotating shaft, a second transmission gear is connected to the second rotating shaft, a third transmission gear is connected to the third rotating shaft, and a fourth transmission gear is connected to the fourth rotating shaft; a drive gear is connected to the rotary drive component, and the first, second, third, and fourth transmission gears respectively mesh with the outer ring of the drive gear.

4. The battery case push-cut apparatus according to claim 3, characterized by The movable block has multiple first receiving slots, and each first receiving slot has a slot on its side. The first abutting block, the second abutting block, the third abutting block and the fourth abutting block are respectively engaged with the corresponding slots. The first cam, the second cam, the third cam and the fourth cam are respectively housed in the corresponding first receiving slots.

5. The battery case push-cut apparatus according to claim 4, wherein A protective shell is provided on the base, and the rotary drive component is connected to the base through the protective shell. The drive gear, the first transmission gear, the second transmission gear, the third transmission gear, and the fourth transmission gear are located inside the protective shell.

6. The battery case push-cut apparatus according to claim 1, wherein The base is also provided with a limiting frame, which surrounds the outer ring of the movable block. A protruding edge is formed on the limiting frame, and the movable block is held between the protruding edge and the base in the thickness direction.

7. The battery case push-cut apparatus according to claim 6, wherein The base is also provided with a plurality of wear-resistant blocks, and the movable block abuts against the wear-resistant blocks on the side facing the base.

8. The battery case push-cut apparatus according to claim 4 or 5, characterized by The movable block has multiple second receiving slots corresponding one-to-one with the first receiving slot. Each second receiving slot is provided with a first abutting block, a second abutting block, a third abutting block, and a fourth abutting block, as well as a first cam corresponding to the first abutting block, a second cam corresponding to the second abutting block, a third cam corresponding to the third abutting block, and a fourth cam corresponding to the fourth abutting block. At the corresponding positions of the second receiving slots, a first transmission gear connected to the first cam, a second transmission gear connected to the second cam, a third transmission gear connected to the third cam, and a fourth transmission gear connected to the fourth cam are also provided, and two first transmission gears are correspondingly meshed, two second transmission gears are correspondingly meshed, two third transmission gears are correspondingly meshed, and two fourth transmission gears are correspondingly meshed.

9. The battery case push-cut apparatus according to any one of claims 3 to 5, characterized by The base is also provided with an inductive switch, and a connecting shaft is provided on one of the first transmission gear, the second transmission gear, the third transmission gear and the fourth transmission gear, and an inductive block corresponding to the inductive switch is provided on the connecting shaft.

10. A battery production apparatus characterized by comprising: Includes the battery casing push-cutting device according to any one of claims 1-9.

Images