Laser hole cutting device for battery pack box frame

Abstract

The invention discloses a laser hole cutting device for a battery pack box frame. Relates to the technical field of battery pack box processing. Comprising a laser hole cutting machine body, a movable sliding table is installed at the bottom of the inner side of the laser hole cutting machine body, a bidirectional sliding table is connected to the side edge of a sliding plate of the movable sliding table through bolts, and a fixing frame is fixedly connected to the side, located on the laser hole cutting machine body, of a sliding block of the bidirectional sliding table. The fixing frame can be driven to move by starting the bidirectional sliding table, the main fixing plate moves, the main fixing plate can drive the auxiliary fixing plate to move under the action of the transmission gear after moving to be attached to the box body frame, and the auxiliary fixing plate moves to be attached to the side edge end of the box body frame; and battery pack box body frames with different sizes can be rapidly fixed through the main fixing plate and the auxiliary fixing plate, so that workers can conveniently disassemble or assemble the box body frames, and the frame processing efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack case processing, and in particular to a battery pack case frame laser hole cutting device. Background Art

[0002] The battery pack is the core power source of new energy vehicles. It is composed of multiple battery cells and uses a modular design to store and release electrical energy. Safety performance is key to the battery pack. The modern design incorporates multiple layers of protection. On the passive level, it includes a high-strength aluminum alloy frame that can withstand extreme collisions and extrusion to ensure zero battery cell intrusion. Secondly, on the active level, it relies on the BPU battery sentinel system. Through thousands of sensors, it detects temperature and voltage fluctuations in real time to achieve millisecond-level fault isolation and early warning. The battery pack box frame requires the use of a laser cutting device during the processing process.

[0003] The existing laser hole cutting device needs to use tooling to fix the frame during use. The tooling needs to use bolts and limit blocks to fix the frame during the fixing process. When frames of different sizes need to be fixed, the limit blocks and bolt positions need to be replaced. The fixing time is long, which in turn prolongs the frame processing time. In addition, when the dual-platform laser hole cutting device is punching holes in one group of frames, the other group of frames will be located outside the laser hole cutting device. External dust and dust generated during drilling will be adsorbed on the other group of frames. The accumulation of dust and impurities will affect the accuracy of laser drilling.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original foundation. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser hole cutting device for a battery pack box frame, so as to solve the problem that the laser hole cutting device in the above-mentioned background technology needs to replace the limit blocks and bolt positions when fixing frames of different sizes, resulting in a long fixing time, thereby extending the frame processing time, and the other group of frames of the dual-platform laser hole cutting device will accumulate dust and impurities during the placement process, and the accumulation of dust and impurities will affect the accuracy of laser drilling. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser hole cutting device for a battery pack box frame, comprising a laser hole cutting machine body, a movable slide is installed at the bottom of the inner side of the laser hole cutting machine body, the side of the movable slide slide is connected to a bidirectional slide by bolts, the bidirectional slide block is located on one side of the laser hole cutting machine body and is fixedly connected to a fixed frame, the inner side of the fixed frame is rotatably connected to a transmission gear through a rotating shaft, the fixed frame is slidably connected to a first gear rod, and the first gear rod is located on the outer side of the fixed frame and is fixedly connected to a main fixed plate, and the first gear rod is meshed with the transmission gear, the fixed frame is also slidably connected to a second gear rod, and the second gear rod is located on the outer side of the fixed frame and is fixedly connected to a secondary fixed plate, and the secondary fixed plate is meshed with the transmission gear; A cleaning component is arranged outside the main frame of the laser cutting machine and above the movable slide plate; an adjusting component is arranged outside the main frame of the laser cutting machine and above the movable slide plate.

[0007] Preferably, the cleaning assembly has a cleaning frame slidably connected to the outside of the main frame of the laser cutting machine, a motor is arranged above the cleaning frame, the output end of the motor is connected to a reciprocating screw, the reciprocating screw is sleeved with a reciprocating slide, the reciprocating slide is slidably connected to a reciprocating rod, the bottom of the reciprocating rod is connected to a one-way screw through a bearing, the one-way screw is threadedly connected to a swing rack, a mounting block is provided inside the cleaning frame, the bottom of the mounting block is connected to a connecting rod, the bottom of the connecting rod is rotatably connected to a rotating shaft, and one end of the rotating shaft is connected to a suction head, and the other end of the rotating shaft is connected to a swing gear, a negative pressure machine is connected to the outside of the cleaning frame, and the negative pressure machine is connected to the connecting rod through a hose.

[0008] Preferably, the adjustment component has a one-way slide installed on both sides of the inner wall of the cleaning frame, the one-way slide slider is connected to a docking rod, and the docking rod is slidably connected to the mounting block, the inner side of the one-way screw is slidably connected to a cross shaft, and the cross shaft is rotatably connected to the frame above the mounting block, the cross shaft is sleeved with an adjustment gear, the inner side of the cleaning frame is connected to a bevel rack, and the bevel rack is meshed with the adjustment gear, the inner side of the cleaning frame is connected to a partition, and the partition is provided with an oblique groove, and the connecting rod is embedded in the oblique groove of the partition.

[0009] Preferably, a first sliding rod is fixedly connected to one side of the main fixed plate, and the first sliding rod is located on the inner side of the fixed frame and is connected to a spring, and the other end of the spring is connected to the inner wall of the fixed frame, and the secondary fixed plate is located on one side of the fixed frame and is connected to the second sliding rod, and the second sliding rod is slidably connected to the fixed frame.

[0010] Preferably, the mounting block is provided with a limiting groove, and the swing rack is embedded in the limiting groove of the mounting block.

[0011] Preferably, the connecting rod kit has a rotating wheel, and the rotating wheel is located in the inclined groove of the partition.

[0012] Preferably, a limiting plate is fixedly connected to the inner side of the cleaning frame, and the limiting plate is slidably connected to a rotating plate, and the rotating plate is rotatably connected to the bottom end of the reciprocating screw rod.

[0013] Preferably, a fixing frame is connected above the docking rod, and the fixing frame is fixedly sleeved with the motor, and a roller is connected to the bottom of the fixing frame, and the roller is fitted with the cleaning frame.

[0014] Preferably, a lifting rod is connected to the outside of the main frame of the laser cutting machine, and the output end of the lifting rod is connected to the protrusions on both sides of the cleaning frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can drive the fixed frame to move by starting the two-way slide, and the movement of the fixed frame can drive the main fixed plate to communicate, and the main fixed plate moves. After the main fixed plate moves and fits with the box frame, it can drive the auxiliary fixed plate to move under the action of the transmission gear. The movement of the auxiliary fixed plate will fit the side end of the box frame. The battery pack box frames of different sizes can be quickly fixed by the main fixed plate and the auxiliary fixed plate, which is convenient for the staff to disassemble or install the box frame, thereby improving the frame processing efficiency.

[0016] 2. The present invention can drive the reciprocating screw to rotate by starting the motor, and the rotation of the reciprocating screw drives the reciprocating slide to perform vertical reciprocating motion. The reciprocating motion of the reciprocating slide drives the swing rack to reciprocate. The vertical reciprocating motion of the swing rack drives the swing gear to swing under the action of the suction head, thereby absorbing dust and impurities on the surface of the box frame, reducing the situation where the punching accuracy is reduced due to the accumulation of dust and impurities.

[0017] 3. In the present invention, when the bidirectional slide is working, the unidirectional slide will be started at the same time. The operation of the unidirectional slide drives the docking rod to move. The movement of the docking rod can drive the suction head to move, and the position of the suction head is adjusted. In the movement process of the docking rod, the height of the swing rack is adjusted under the action of the adjusting gear, and then the swing amplitude of the suction head can be adjusted, so that the suction head can be gathered or dispersed according to the size of the box frame, thereby improving the cleaning effect of the suction head on box frames of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the top surface structure of the movable slide of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle; Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure at B in the middle; Figure 5 This is a schematic diagram of the internal structure of the fixing frame of the present invention; Figure 6 This is a schematic diagram of the internal structure of the cleaning frame of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at C in the middle; Figure 8 This is a schematic diagram of the top surface structure of the cleaning frame of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at D in the middle; Figure 10 This is a schematic structural diagram of the cleaning component of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure at E in the middle.

[0019] In the figure: 1. Laser cutting machine body; 2. Moving slide; 3. Bidirectional slide; 4. Fixed frame; 5. Transmission gear; 6. First gear rod; 7. Main fixed plate; 8. Second gear rod; 9. Auxiliary fixed plate; 10. Cleaning assembly; 101. Cleaning frame; 102. Motor; 103. Reciprocating screw rod; 104. Reciprocating slide plate; 105. Reciprocating rod; 106. One-way screw rod; 107. Swinging rack; 108. Mounting block; 109. Connecting rod; 1010. Suction head; 1011. Swinging gear; 1012. Negative pressure machine; 11. Adjustment assembly; 111. One-way slide; 112. Docking rod; 113. Bevel rack; 114. Cross shaft; 115. Adjustment gear; 116. Partition. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-11The present invention provides a technical solution: a laser hole cutting device for a battery pack box frame, comprising a laser hole cutting machine body 1, a movable slide 2 is installed at the bottom inside the laser hole cutting machine body 1, and a bidirectional slide 3 is connected to the side of the slide plate of the movable slide 2 by bolts, and the slider of the bidirectional slide 3 is located on one side of the laser hole cutting machine body 1 and is fixedly connected to a fixed frame 4, and the inside of the fixed frame 4 is rotatably connected to a transmission gear 5 through a rotating shaft, and the fixed frame 4 is slidably connected to a first gear rod 6, and the first gear rod 6 is located on the outside of the fixed frame 4 and is fixedly connected to a main fixed plate 7, and the first gear rod 6 is meshed with the transmission gear 5, and the fixed frame 4 is also slidably connected to a second gear rod 8, and the second gear rod 8 is meshed with the transmission gear 5. The rod 8 is located at one end outside the fixed frame 4 and is fixedly connected to a secondary fixing plate 9, and the secondary fixing plate 9 is meshed with the transmission gear 5. By starting the two-way slide 3, the fixed frame 4 can be driven to move, and the movement of the fixed frame 4 can drive the main fixing plate 7 to communicate. The main fixing plate 7 moves, and after the main fixing plate 7 moves and fits with the box frame, the secondary fixing plate 9 can be driven to move under the action of the transmission gear 5. The movement of the secondary fixing plate 9 will fit the side end of the box frame. The battery pack box frames of different sizes can be quickly fixed through the main fixing plate 7 and the secondary fixing plate 9, which is convenient for the staff to disassemble or install the box frame, thereby improving the frame processing efficiency; The cleaning component 10 is arranged outside the frame of the laser cutting machine body 1 and is located above the slide of the movable slide 2. The adjusting component 11 is arranged outside the frame of the laser cutting machine body 1 and is located above the slide of the movable slide 2.

[0022] As an embodiment of the present invention, the cleaning component 10 has a cleaning frame 101 that is slidably connected to the outside of the frame of the laser cutting machine body 1, and a motor 102 is arranged above the cleaning frame 101. The output end of the motor 102 is connected to a reciprocating screw rod 103, and the reciprocating screw rod 103 is sleeved with a reciprocating slide 104. The reciprocating slide 104 is slidably connected to a reciprocating rod 105. The bottom of the reciprocating rod 105 is connected to a one-way screw rod 106 through a bearing, and the one-way screw rod 106 is threadedly connected to a swing rack 107. A mounting block 108 is arranged inside the cleaning frame 101, and the bottom of the mounting block 108 is connected to a connecting rod 109. The bottom of the connecting rod 109 is rotatably connected to a rotating shaft, and one end of the rotating shaft is connected to an air suction head. 1010, and the other end of the rotating shaft is connected to a swing gear 1011, and a negative pressure machine 1012 is connected to the outside of the cleaning frame 101, and the negative pressure machine 1012 is connected to the connecting rod 109 through a hose. By starting the motor 102, the reciprocating screw rod 103 can be driven to rotate, and the rotation of the reciprocating screw rod 103 drives the reciprocating slide 104 to perform vertical reciprocating motion. The reciprocating motion of the reciprocating slide 104 drives the swing rack 107 to reciprocate, and the vertical reciprocating motion of the swing rack 107 drives the swing gear 1011 to swing under the action of the suction head 1010, thereby sucking dust and impurities on the surface of the box frame, reducing the situation where the punching accuracy is reduced due to the accumulation of dust and impurities; As an embodiment of the present invention, the adjustment component 11 has a one-way slide 111 installed on both sides of the inner wall of the cleaning frame 101, the one-way slide 111 is electrically connected to the controller of the laser cutting machine body 1, and the laser cutting machine body 1 controller is electrically connected to the two-way slide 3, the one-way slide 111 slider is connected to the docking rod 112, and the docking rod 112 is slidably connected to the mounting block 108, the inner side of the one-way screw rod 106 is slidably connected to the cross shaft 114, and the cross shaft 114 is rotatably connected to the frame above the mounting block 108, the cross shaft 114 is sleeved with an adjusting gear 115, the inner side of the cleaning frame 101 is connected to the bevel rack 113, and the bevel rack 113 is meshed with the adjusting gear 115, the inner side of the cleaning frame 101 It is connected with a partition 116, and the partition 116 is provided with an oblique groove, and the connecting rod 109 is embedded in the oblique groove of the partition 116. When the two-way slide 3 is working, the one-way slide 111 will be started at the same time. The one-way slide 111 drives the docking rod 112 to move. The movement of the docking rod 112 can drive the suction head 1010 to move, and the position of the suction head 1010 is adjusted. In the movement process of the docking rod 112, the height of the swing rack 107 is adjusted under the action of the adjusting gear 115, and then the swing amplitude of the suction head 1010 can be adjusted, so that the suction head 1010 can be gathered or spread out according to the size of the box frame, thereby improving the cleaning effect of the suction head 1010 on box frames of different sizes; As an embodiment of the present invention, one side of the main fixing plate 7 is fixedly connected to a first sliding rod, and the first sliding rod is located on the inner side of the fixing frame 4 and is connected to a spring, and the other end of the spring is connected to the inner wall of the fixing frame 4, and the main fixing plate 7 is limited by the first sliding rod, so as to reduce the deviation of the main fixing plate 7 during the movement, and the main fixing plate 7 is quickly restored to the initial position by the spring, which is convenient for the subsequent fixing of the box frame, and the auxiliary fixing plate 9 is located on one side of the fixing frame 4 and is connected to the second sliding rod, and the second sliding rod is slidably connected to the fixing frame 4, and the second gear rod 8 is limited by the second sliding rod, so as to improve the stability of the second gear rod 8 during the movement; As an embodiment of the present invention, the mounting block 108 is provided with a limiting groove, and the swing rack 107 is embedded in the limiting groove of the mounting block 108. By providing the limiting groove, the swing rack 107 can be limited to ensure the stability of the swing rack 107 during the vertical movement; As an embodiment of the present invention, the connecting rod 109 is equipped with a rotating wheel, and the rotating wheel is located in the inclined groove of the partition plate 116. The rotating wheel is provided to reduce the situation where the connecting rod 109 is damaged by movement in the inclined groove. The inner side of the cleaning frame 101 is fixedly connected to the limiting plate, and the limiting plate is slidably connected to the rotating plate, and the rotating plate is rotatably connected to the bottom end of the reciprocating screw rod 103. The bottom end of the reciprocating screw rod 103 is limited by providing a rotating plate and a limiting plate, thereby reducing the shaking of the reciprocating screw rod 103 during rotation. A fixed frame is connected to the top of the docking rod 112, and the fixed frame is fixedly sleeved with the motor 102, and a roller is connected to the bottom of the fixed frame, and the roller is in contact with the cleaning frame 101. The motor 102 is supported and fixed by providing the fixed frame and the roller, thereby improving the stability of the motor 102 during movement. As an embodiment of the present invention, a lifting rod is connected to the outside of the frame of the laser cutting machine main body 1, and the output end of the lifting rod is connected to the protrusions on both sides of the cleaning frame 101. By starting the lifting rod, the cleaning frame 101 can be driven to move as a whole, so that the surface of the box frame of the second slide can be cleaned.

[0023] Working principle: When it is necessary to drill a hole in the battery pack frame, place the frame above the slide of the mobile slide 2, and make the frame on the operator's side and the raised position of the slide of the mobile slide 2, then start the two-way slide 3, and the two-way slide 3 drives the fixed frame 4 to move, and the movement of the fixed frame 4 drives the main fixed plate 7 to move and fit together with the two sides of the frame. When the main fixed plate 7 is in fit with the frame, the two-way slide 3 is still started to drive the fixed frame 4 to move. At this time, the first gear rod 6 on one side of the main fixed plate 7 will gradually be stored in the fixed frame 4. Since the first gear rod 6 is meshed with the transmission gear 5, the first gear rod 6 will drive the transmission gear 5 to rotate during the storage process, and since the transmission gear 5 is meshed with the second gear rod 8, the rotation of the transmission gear 5 will drive the second gear rod 8 to move, and the movement of the second gear rod 8 drives the auxiliary fixed plate 9 to move and fit together with the corner end of the frame. The frame can be quickly clamped and fixed by the main fixed plate 7 and the auxiliary fixed plate 9. Secondly, since the bidirectional slide 3 is electrically connected to the controller of the laser cutting machine body 1, and the unidirectional slide 111 is electrically connected to the controller of the laser cutting machine body 1, the bidirectional slide 3 will simultaneously start the unidirectional slide 111 when it is working, and the unidirectional slide 111 will drive the docking rod 112 to move, and the movement of the docking rod 112 will drive the mounting block 108 to move, and the movement of the mounting block 108 will drive the connecting rod 109 to move in the same way. Since the roller of the connecting rod 109 is located in the inclined groove of the partition 116, the connecting rod 109 will be affected by the inclined groove to move laterally during the longitudinal movement, and the lateral movement of the connecting rod 109 will drive the mounting block 108 to move laterally, and the lateral movement of the connecting rod 109 will also drive the suction head 1010 to move laterally, and the lateral movement of the four groups of suction heads 1010 will converge; Then, the mounting block 108 will also drive the cross shaft 114 to move horizontally during the lateral movement, and the movement of the cross shaft 114 will drive the adjustment gear 115 to move. Since the adjustment gear 115 is meshed with the bevel rack 113, the adjustment gear 115 will be affected by the bevel rack 113 to rotate during the diagonal movement. The rotation of the adjustment gear 115 will drive the cross shaft 114 to rotate, and the rotation of the cross shaft 114 will drive the one-way screw rod 106 to rotate. Since the one-way screw rod 106 is threadedly connected to the swing rack 107, and the swing rack 107 is slidably connected to the mounting block 108, the rotation of the one-way screw rod 106 will cause the swing rack 107 to move upward. Finally, when the movable slide 2 is started to drive the fixed frame into the interior of the laser cutting machine body 1 for laser drilling, the negative pressure machine 1012 and the motor 102 will work, and the motor 102 will drive the reciprocating screw 103 to rotate, and the reciprocating screw 103 rotates to drive the reciprocating slide 104 to move up and down, and the reciprocating slide 104 moves vertically to drive the reciprocating rod 105 to move in the same way, and the reciprocating rod 105 moves vertically to drive the one-way screw 106 to move vertically, and the one-way screw 106 moves vertically to drive The swing rack 107 moves vertically, and during the vertical movement, the swing rack 107 will engage with the swing gear 1011 to drive the swing gear 1011 to rotate. The swing gear 1011 rotates back and forth to drive the suction head 1010 to swing. The swing suction head 1010 will absorb the dust on the surface of the frame above the slide of the bottom moving slide 2. The dust absorbed by the suction head 1010 will enter the collection box on the side of the negative pressure machine 1012 through the hose, thereby reducing the impact of dust accumulation on the accuracy of laser drilling.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser hole cutting device for a battery pack box frame, comprising a laser hole cutting machine body (1), characterized in that: A movable slide (2) is installed at the bottom of the inner side of the laser cutting machine body (1), and the side of the slide of the movable slide (2) is connected to a bidirectional slide (3) by bolts. The slide of the bidirectional slide (3) is located on one side of the laser cutting machine body (1) and is fixedly connected to a fixed frame (4). The inner side of the fixed frame (4) is rotatably connected to a transmission gear (5) through a rotating shaft. The fixed frame (4) is slidably connected to a first gear rod (6), and the first gear rod (6) is located on the outer side of the fixed frame (4) and is fixedly connected to a main fixed plate (7), and the first gear rod (6) is meshed with the transmission gear (5). The fixed frame (4) is also slidably connected to a second gear rod (8), and the second gear rod (8) is located on the outer side of the fixed frame (4) and is fixedly connected to a secondary fixed plate (9), and the secondary fixed plate (9) is meshed with the transmission gear (5). A cleaning component (10), the cleaning component (10) being arranged outside the frame of the laser cutting machine main body (1) and located above the slide plate of the movable slide (2); An adjustment component (11) is arranged outside the frame of the laser cutting machine main body (1) and is located above the slide of the movable slide (2).

2. The battery pack box frame laser drilling device according to claim 1, characterized in that: The cleaning assembly (10) comprises a cleaning frame (101) slidably connected to the outside of the frame of the laser cutting machine body (1); a motor (102) is arranged above the cleaning frame (101); an output end of the motor (102) is connected to a reciprocating screw (103); a reciprocating slide (104) is sleeved on the reciprocating screw (103); the reciprocating slide (104) is slidably connected to a reciprocating rod (105); a one-way screw (106) is connected to the bottom of the reciprocating rod (105) via a bearing; the one-way screw (106) is connected to the bottom of the reciprocating rod (105) via a bearing; 6) A swing rack (107) is threadedly connected, a mounting block (108) is provided inside the cleaning frame (101), a connecting rod (109) is connected to the bottom of the mounting block (108), a rotating shaft is rotatably connected to the bottom of the connecting rod (109), one end of the rotating shaft is connected to the suction head (1010), and the other end of the rotating shaft is connected to the swing gear (1011), the outside of the cleaning frame (101) is connected to a negative pressure machine (1012), and the negative pressure machine (1012) is connected to the connecting rod (109) through a hose.

3. The battery pack box frame laser drilling device according to claim 2, characterized in that: The adjustment component (11) has a one-way slide (111) installed on both sides of the inner wall of the cleaning frame (101), the slider of the one-way slide (111) is connected to a docking rod (112), and the docking rod (112) is slidably connected to the mounting block (108), the inner side of the one-way screw rod (106) is slidably connected to a cross shaft (114), and the cross shaft (114) is rotatably connected to the frame above the mounting block (108), the cross shaft (114) is sleeved with an adjustment gear (115), the inner side of the cleaning frame (101) is connected to a bevel rack (113), and the bevel rack (113) is meshed with the adjustment gear (115), the inner side of the cleaning frame (101) is connected to a partition (116), and the partition (116) is provided with an oblique groove, and the connecting rod (109) is embedded in the oblique groove of the partition (116).

4. The laser hole cutting device for a battery pack box frame according to claim 1, characterized in that: One side of the main fixed plate (7) is fixedly connected to a first slide bar, and the first slide bar is located inside the fixed frame (4) and is connected to a spring, and the other end of the spring is connected to the inner wall of the fixed frame (4), and the auxiliary fixed plate (9) is located on one side of the fixed frame (4) and is connected to a second slide bar, and the second slide bar is slidably connected to the fixed frame (4).

5. The battery pack case frame laser drilling device according to claim 2, characterized in that: The mounting block (108) is provided with a limiting groove, and the swing rack (107) is embedded in the limiting groove of the mounting block (108).

6. The battery pack box frame laser drilling device according to claim 3, characterized in that: The connecting rod (109) is provided with a rotating wheel, and the rotating wheel is located in the inclined groove of the partition (116).

7. The laser hole cutting device for a battery pack box frame according to claim 3, characterized in that: The inner side of the cleaning frame (101) is fixedly connected to a limiting plate, and the limiting plate is slidably connected to a rotating plate, and the rotating plate is rotatably connected to the bottom end of the reciprocating screw rod (103).

8. The laser hole cutting device for a battery pack box frame according to claim 3, characterized in that: A fixing frame is connected above the docking rod (112), and the fixing frame is fixedly sleeved with the motor (102), and a roller is connected to the bottom of the fixing frame, and the roller is fitted with the cleaning frame (101).

9. The laser hole cutting device for a battery pack box frame according to claim 1, characterized in that: A lifting rod is connected to the outside of the frame of the laser cutting machine main body (1), and the output end of the lifting rod is connected to the protrusions on both sides of the cleaning frame (101).

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