Square battery cell module regular compaction and packing machine

Abstract

The present invention discloses a regular compressing and packing machine for square battery cell modules, which comprises a frame, a platen assembly, a bottom leveling assembly, a top compressing assembly, a bottom assembly and a positioning block; the platen assembly is fixed on the frame, the bottom leveling assembly is arranged on the platen assembly, the positioning block is fixed on the platen assembly, the bottom assembly is arranged on the positioning block and above the bottom leveling assembly, and the top compressing assembly is arranged on the platen assembly and above the bottom assembly. The packing machine of the present invention can perform top-tightening or compressing on six surfaces of the square battery cell module, ensuring the regularity of the square battery cell module during packing, thereby ensuring the packing quality. At the same time, when the square battery cell module is regularly positioned and compressed, it is leveled from the bottom, ensuring the horizontal of the cell pole surface on the upper part of the battery cell and ensuring the welding quality of subsequent workstations. In addition, a pressure sensor with a floating connection is arranged at the compressing end to monitor the pressure in real time and upload the pressure value to the system, ensuring the controllability of the pressure.

Description

Technical Field

[0001] The present invention relates to production equipment for square battery cell modules, in particular to a square battery cell module regular positioning, pressing and packing machine, which can be used on a battery cell pack line. Prior Art

[0002] In recent years, with the development of new energy and the enhancement of people's environmental protection awareness, more and more people choose electric vehicles as their first choice when buying cars. Therefore, the production capacity demand for power batteries is increasing day by day, and the use of related supporting automation equipment is also increasing.

[0003] Before welding or tying a strap to a square battery cell module, it is necessary to shape and press the square battery cell module. The disadvantages of existing regular pressing equipment are as follows: First, the lower part of the square battery cell module is simply placed on the positioning component, so it is impossible to ensure that the pole surfaces, i.e., the upper planes, of all battery cells in the square battery cell module are at the same height. The uneven upper part will affect the packing quality. More importantly, the uneven upper part of the square battery cell module will directly affect the subsequent laser welding quality, resulting in a very low welding qualification rate. Second, the pressing force for pressing and shaping is uncontrollable, affecting the quality of regular pressing. Summary of the Invention

[0004] The problem solved by the present invention is to provide a square battery cell module regular pressing and packing machine, which can top-press or press from six faces of the square battery cell module, ensuring the regularity of the square battery cell module during packing, thereby ensuring the packing quality. At the same time, when the square battery cell module is regularly positioned and pressed, it is top-flattened from the bottom, ensuring that the pole surfaces of the upper battery cells are horizontal, and ensuring the welding quality of subsequent workstations. In addition, a pressure sensor with a floating connection is set at the pressing end to monitor the pressure in real time and upload the pressure value to the system, ensuring the controllability of the pressure.

[0005] A square battery cell module regular pressing and packing machine of the present invention includes a frame, a platen assembly, a bottom flattening assembly, a top pressing assembly, a bottom assembly, and a positioning block; the platen assembly is fixed on the frame, the bottom flattening assembly is arranged on the platen assembly, the positioning block is fixed on the platen assembly, the bottom assembly is arranged on the positioning block and above the bottom flattening assembly, and the top pressing assembly is arranged on the platen assembly and above the bottom assembly.

[0006] Further, the frame is a box-shaped part with an opening on the top; the platen assembly includes a platen, a bottom sensor mounting flange, a bottom cylinder rod head, a placement plate, a support plate, a bottom cylinder mounting bracket, a bottom sensor top head, a bottom cylinder, and a bottom sensor; the bottom sensor mounting flange is arranged in the central hole of the platen, the bottom sensor is fixed on the bottom sensor mounting flange, the top surface of the bottom sensor is connected to the support plate, and the placement plate is connected to the top of the support plate; the bottom cylinder mounting bracket is fixed on the bottom of the platen, the bottom cylinder body is fixedly connected to the bottom cylinder mounting bracket, the bottom cylinder rod head is located in the lower half of the hole of the bottom sensor mounting flange, the bottom sensor top head is located in the upper half of the hole of the bottom sensor mounting flange, and the bottom cylinder rod head is in contact with the bottom sensor top head; the bottom leveling assembly includes a bottom support plate, a plurality of top columns, a plurality of heightening columns, a plurality of top blocks, a plurality of linear bearings, and a plurality of round wire spiral springs; the linear bearings are fixed in the holes of the bottom support plate, the lower part of the top column is connected to the linear bearing and the upper part is connected to the top block, the heightening column is sleeved on the lower part of the top column and fixed on the bottom support plate, the round wire spiral spring is sleeved on the upper part of the top column, and its upper and lower parts respectively abut against the upper end surface of the heightening column and the step surface of the top column; the platen is fixed on the frame, and the bottom support plate is fixed on the placement plate; the bottom assembly includes a bottom plate, a fixed pressing plate, a movable pressing plate, three front, middle and rear battery cell pads, a locking module, a movable guiding module, and two symmetrically arranged positioning tracks at the front and rear; the bottom plate is square, and two long strip-shaped grooves are symmetrically machined at the front and rear in the middle position; the three battery cell pads are fixed in the middle of the two rectangular grooves of the bottom plate and at the front and rear ends of the rectangular grooves; the movable guiding module is arranged on the front and rear outer sides of the battery cell pads; the fixed pressing plate is fixed on the bottom plate and is located on the left side of the battery cell pads, the movable pressing plate is located on the right side of the battery cell pads, the locking module is located on the right side of the movable pressing plate, and the movable pressing plate and the locking module are arranged on the movable guiding module.

[0007] Further, the positioning track includes a plurality of fixed blocks, the fixed blocks are fixed on the bottom plate, through holes are arranged in the middle of the fixed blocks, and a plurality of through holes form the positioning track; the movable guiding assembly includes two symmetrically arranged movable guiding units at the front and rear, and each movable guiding unit includes a slide rail and two sliders; the slide rails are symmetrically fixed on the bottom plate, and are located outside the long strip-shaped grooves and inside the positioning track, two sliders are arranged on the right side of each slide rail, the sliders move left and right along the slide rails, and the movable pressing plate and the locking module are respectively fixedly connected to the sliders.

[0008] Further, the locking module includes a locking bottom plate, a locking vertical plate, a locking screw, two front and rear pins, a locking rod, a top shaft, a spring, and a trapezoidal nut. The lower part of the locking bottom plate is fixedly connected to the two front and rear sliders. In the holes on the outer side of the locking bottom plate, there are pins located outside the sliders. The upper part of the locking bottom plate is fixedly connected to the locking vertical plate. The locking screw passes through the locking vertical plate from right to left. The locking rod passes through the inner hole of the locking screw, and there is a spring between it and the locking screw. The right end of the locking rod is fixedly connected to the top shaft, and the trapezoidal nut is screwed onto the locking screw.

[0009] Further, the top pressing assembly includes a top flat plate, a flat plate, a lead screw support seat, a motor support seat, four columns, a trapezoidal lead screw, a lead screw support, a servo motor, a synchronous pulley Ⅰ, a synchronous pulley Ⅱ, and a synchronous belt. The four columns are symmetrically fixed at the four corners under the top flat plate. The flat plate is located under the top flat plate. The lower part of the lead screw support seat is fixedly connected to the flat plate, and the upper part is fixedly connected to the lead screw support. The synchronous pulley Ⅰ is installed on the lead screw support. The trapezoidal lead screw passes through the hole of the top flat plate and is connected to the inner hole of the synchronous pulley Ⅰ. The lower part of the motor support seat is fixedly connected to the flat plate. The servo motor passes through the hole of the top flat plate and is connected to the motor support seat. The synchronous pulley Ⅱ is installed on the motor support seat. The output shaft of the servo motor is connected to the inner hole of the synchronous pulley Ⅱ. The synchronous belt connects the synchronous pulley Ⅰ and the synchronous pulley Ⅱ. The top pressing assembly is located above the bottom assembly and is fixed on the table board through four columns.

[0010] Further, the table board assembly further includes a guiding mechanism, which includes four guiding shafts Ⅰ, four oil-free bushings Ⅰ, and four guiding shaft stoppers Ⅰ. The guiding shafts Ⅰ are symmetrically arranged around the bottom electric cylinder. The guiding shafts Ⅰ pass through the guiding holes of the table board. Their tops are connected to the placing plate, and their bottoms are fixedly connected to the guiding shaft stoppers Ⅰ. The oil-free bushings Ⅰ are arranged in the guiding holes of the table board.

[0011] Further, the table board assembly further includes two multi-faceted shafts and two clamps. The multi-faceted shafts are symmetrically fixed on the left and right sides above the placing plate, and the clamps are arranged on the multi-faceted shafts.

[0012] Further, the top pressing assembly further includes a guiding mechanism, which includes four guiding shafts Ⅱ, four oil-free bushings Ⅱ, and four guiding shaft washers Ⅱ. The guiding shafts Ⅱ are symmetrically arranged around the trapezoidal lead screw. The guiding shafts Ⅱ pass through the guiding holes of the top flat plate. Their bottoms are fixedly connected to the flat plate, and their tops are fixedly connected to the guiding shaft washers Ⅱ. The oil-free bushings Ⅱ are arranged in the guiding holes of the top flat plate.

[0013] Further, the top pressing assembly further includes a bakelite flat plate, which is fixed under the connecting flat plate.

[0014] Furthermore, the rectangular battery cell module regular compressing and packing machine further includes a pressing and locking assembly, which is arranged on the platen assembly and on the left side of the bottom assembly; the pressing and locking assembly includes a pressing mounting plate, an electric cylinder mounting plate, two front and rear pressing support plates, a sensor mounting flange, a sensor head, an electric cylinder floating joint, a mounting plate, an electric cylinder II, a sensor II, two pressing columns, two guide shafts III, two oil-free bushings III, and two guide shaft stoppers III; the front and rear ends of the pressing mounting plate are respectively fixed to a pressing support plate, the electric cylinder mounting plate is fixed to the pressing mounting plate, and the electric cylinder II passes through the middle hole of the electric cylinder mounting plate and is fixedly connected thereto; the mounting plate is arranged on the right side of the electric cylinder mounting plate, the sensor mounting flange is fixed in the middle hole at the upper part of the mounting plate, the sensor II is arranged in the sensor mounting flange, and the electric cylinder floating joint is in contact with the sensor head; the oil-free bushings III are symmetrically arranged in the small holes on both sides of the middle hole of the electric cylinder mounting plate in the front and rear, the pressing columns are symmetrically arranged on both sides of the sensor mounting flange, pass through the small holes on both sides of the middle hole at the upper part of the mounting plate, and the left end thereof is arranged in the inner hole of the oil-free bushing III; the two guide shafts III are symmetrically arranged on both sides of the electric cylinder II, the right end thereof is arranged in the inner hole of the oil-free bushing III, and the left end thereof is provided with a guide shaft stopper III; the pressing support plate is fixed to the platen.

[0015] Furthermore, the rectangular battery cell module regular compressing and packing machine further includes a blocking assembly and a lifting and pressing assembly. The blocking assembly and the lifting and pressing assembly are both connected to the top pressing assembly and are respectively located in front of and behind the top pressing assembly; the blocking assembly includes a blocking fixing plate, nuts, a moving baffle, a screw rod, and a bakelite baffle; the fixing plate is fixed to the top flat plate, two screw rods pass through the screw holes of the blocking fixing plate to connect the moving baffle, and the screw rods are tightened by nuts, and the bakelite baffle is fixed to the moving baffle; the lifting and pressing assembly includes a lifting mounting plate, a sliding mounting plate, a cylinder push plate, a cylinder mounting seat, a lifting baffle, a lifting bakelite baffle, a sensor flange, an electric cylinder rod head, a sensor pressing head, a sensor I, an electric cylinder I, two linear guide sliders, and a locking cylinder; the lower parts of the two sliding mounting plates are fixed to the top flat plate, the lifting mounting plate is located behind the sliding mounting plate, the two linear guide sliders are symmetrically fixed to the lifting mounting plate and are matched with the tracks behind the sliding mounting plate; the cylinder mounting seat is fixed to the top flat plate, the locking cylinder is mounted on the cylinder mounting seat, the cylinder push plate is located below the locking cylinder, the vertical plate thereof is fixed to the lifting mounting plate, and the hole of the horizontal plate thereof is sleeved on the piston rod of the locking cylinder and is locked by a nut; the electric cylinder I is arranged behind the lifting mounting plate and is connected to the hole at the lower part of the lifting mounting plate, the lifting baffle is located at the lower part of the lifting mounting plate, the sensor flange is fixed to the back of the lifting baffle, the sensor I is arranged in the sensor flange, and the electric cylinder rod head is in contact with the sensor pressing head.

[0016] Further, the buck-boost pressing assembly further includes a guiding mechanism, which includes two guiding shaft retainers IV, two guiding shafts IV, and two oil-free bushings IV. The two guiding shafts IV are symmetrically arranged on the left and right sides of the bottom electric cylinder. The guiding shafts IV pass through the guiding holes of the lifting mounting plate, with their front ends fixedly connected to the lifting baffle and their rear ends provided with guiding shaft retainers IV. The oil-free bushings IV are arranged in the guiding holes of the lifting baffle.

[0017] The working principle of the equipment of the present invention is as follows: After placing the square battery cell module on the battery cell backing plate in the bottom assembly, the top block in the bottom leveling assembly extends out from the slot of the bottom plate and presses the square battery cell module from the bottom, and the flat plate in the top pressing assembly presses the square battery cell module from above; the front of the square battery cell module leans against the moving baffle, and after the lifting baffle in the buck-boost pressing assembly moves downward and then forward, it tightly presses the square battery cell module from the rear; the right side of the square battery cell module leans against the fixed pressing plate, and the pressing column in the pressing and locking assembly tightly presses the square battery cell module from the left. Then, the operator uses a strapping machine to strap the square battery cell module into a whole.

[0018] The advantages of the equipment of the present invention are as follows: First, the present invention tightens or presses the square battery cell module from six sides, ensuring the regularity of the square battery cell module during strapping and thus ensuring the strapping quality; Second, the square battery cell module is leveled from the bottom during regular positioning and pressing, ensuring the horizontal of the electrode post surface of the upper battery cells and ensuring the welding quality of subsequent workstations; Third, a floating-connected pressure sensor is provided at the pressing end to monitor the pressure in real time and upload the pressure value to the system, ensuring the controllability of the pressure. Brief Description of the Drawings

[0019] Figure 1 is a perspective view of the square battery cell module regular pressing and strapping machine of the present invention;

[0020] Figure 2 is a front view of the square battery cell module regular pressing and strapping machine of the present invention;

[0021] Figure 3 is Figure 2 the top view of;

[0022] Figure 4 is Figure 2 the left view of;

[0023] Figure 5 is a front view of the platen assembly;

[0024] Figure 6 is Figure 5 the top view of;

[0025] Figure 7 is a perspective view of the bottom leveling assembly;

[0026] Figure 8It is the front view of the top pressing component;

[0027] Figure 9 It is Figure 8 the top view of;

[0028] Figure 10 It is the front view of the pressing and locking component;

[0029] Figure 11 It is Figure 10 the top view of;

[0030] Figure 12 It is the three - dimensional view of the blocking component;

[0031] Figure 13 It is the front view of the lifting and pressing component;

[0032] Figure 14 It is Figure 13 the top view of;

[0033] Figure 15 It is the front view of the bottom component;

[0034] Figure 16 It is Figure 15 the top view of;

[0035] Figure 17 It is the left view of the locking module in the bottom component;

[0036] Figure 18 It is the top view of the locking module in the bottom component. Detailed implementation manners Example 1

[0037] From Figure 1 , Figure 2 , Figure 3 , Figure 4 it can be seen that the square battery cell module regular pressing and packing machine of the present invention includes a frame 1, a platen assembly 2, a bottom leveling assembly 3, a top pressing assembly 4, a positioning block 9, and a bottom assembly 8; the platen assembly 2 is fixed on the frame 1, the bottom leveling assembly 3 is arranged on the platen assembly 2, the positioning block 9 is fixed on the platen assembly 2, the bottom assembly 8 is arranged on the positioning block 9 and above the bottom leveling assembly 3, and the top pressing assembly 4 is arranged on the platen assembly 2 and above the bottom assembly 8. Example 2

[0038] From Figure 5 , Figure 6 , Figure 7 , Figure 15 , Figure 16It can be seen that in the square battery cell module regular pressing and packing machine of the present invention: the frame 1 is a box part with an opening on the top; the platen assembly 2 includes a platen 201, a bottom sensor mounting flange 202, a bottom cylinder rod head 203, a placement plate 204, a support plate 205, a bottom cylinder mounting bracket 206, a bottom sensor top head 208, a bottom cylinder 210, and a bottom sensor 211; the bottom sensor mounting flange 202 is arranged in the central hole of the platen 201, the bottom sensor 211 is fixed on the bottom sensor mounting flange 202, the top surface of the bottom sensor 211 is connected to the support plate 205, and the upper surface of the support plate 205 is connected to the placement plate 204; the bottom cylinder mounting bracket 206 is fixed under the platen 201, the cylinder body of the bottom cylinder 210 is fixedly connected to the bottom cylinder mounting bracket 206, the bottom cylinder rod head 203 is located in the lower half of the hole of the bottom sensor mounting flange 202, the bottom sensor top head 208 is located in the upper half of the hole of the bottom sensor mounting flange 202, and the bottom cylinder rod head 203 is in contact with the bottom sensor top head 208; the bottom flat-topping assembly 3 includes a bottom support plate 301, a plurality of top columns 302, a plurality of heightening columns 303, a plurality of top blocks 304, a plurality of linear bearings 306, and a plurality of round wire helical springs 307; the linear bearings 306 are fixed in the holes of the bottom support plate 301, the lower part of the top column 302 is connected to the linear bearing 306 and the upper part is connected to the top block 304, the heightening column 303 is sleeved on the lower part of the top column 302 and fixed on the bottom support plate 301, the round wire helical spring 307 is sleeved on the upper part of the top column 302, and its upper and lower parts respectively abut against the upper end surface of the heightening column 303 and the step surface of the top column 302; the platen 201 is fixed on the frame 1, and the bottom support plate 301 is fixed on the placement plate 204; the bottom assembly 8 includes a bottom plate 801, a fixed pressing plate 802, a movable pressing plate 803, three front, middle and rear battery cell pads 804, a locking module, a movable guiding module, and two symmetrically arranged positioning tracks at the front and rear; the bottom plate 801 is square, and two long strip-shaped grooves are symmetrically machined at the front and rear in the middle position; the three battery cell pads 804 are fixed in the middle of the two rectangular grooves of the bottom plate 801 and at the front and rear ends of the rectangular grooves; the movable guiding module is arranged on the front and rear outer sides of the battery cell pads 804; the fixed pressing plate 802 is fixed on the bottom plate 801 and is located on the left side of the battery cell pads 804, the movable pressing plate 803 is located on the right side of the battery cell pads 804, the locking module is located on the right side of the movable pressing plate 803, and the movable pressing plate 803 and the locking module are arranged on the movable guiding module.

[0039] When the equipment works, first place the battery cell module on the battery cell pads 804, and then the bottom cylinder 210 works. The bottom cylinder rod head 203 drives the placement plate 204 to move up and down through the bottom sensor top head 208 and the support plate 205; when the placement plate 204 moves up and down, it drives the bottom support plate 301 to move up and down, so that the top block 304 extends out of the groove of the bottom plate 801 to press the battery cell from the bottom or leave the bottom of the battery cell.

[0040] Among them, the bottom electric cylinder 210 drives the overall up and down movement of the bottom flat-topping assembly 3 through the placement plate 204. Each jack post 302 on the bottom flat-topping assembly 3 is an independent elastic telescopic mechanism. Therefore, each lower part of the battery cell has an independent elastic telescopic mechanism to overcome the self-weight of the battery cell and lift the battery cell, so that each battery cell can be tightly pressed against the upper top pressing assembly, ensuring that the pole column surfaces, i.e., the upper planes, of all the battery cells are at the same height, which not only ensures the quality of packaging but also ensures the quality of subsequent welding processes. Embodiment 3

[0041] From Figure 15 and Figure 16 it can be seen that for the square battery cell module regular compaction and packaging machine of the present invention: the positioning track includes a plurality of fixed blocks 805, the fixed blocks 805 are fixed on the bottom plate 801, through holes are provided in the middle of the fixed blocks 805, and a plurality of through holes form the positioning track; the moving guiding assembly includes two symmetrically arranged moving guiding units in the front and back. Each moving guiding unit includes a slide rail 806 and two sliders 807; the slide rails 806 are symmetrically fixed on the bottom plate 801, and are located outside the long strip-shaped groove and inside the positioning track. Two sliders 807 are arranged on the right side of each slide rail, and the sliders 807 move left and right along the slide rail 806. The moving pressing plate 803 and the locking module are respectively fixedly connected to the sliders 807.

[0042] From Figure 17 and Figure 18 it can be seen that for the square battery cell module regular compaction and packaging machine of the present invention: the locking module includes a locking bottom plate 811, a locking vertical plate 812, a locking screw 813, two front and rear pins 814, a locking rod 815, a top shaft 816, a spring 817, and a trapezoidal nut 818. The lower surface of the locking bottom plate 811 is fixedly connected to the two front and rear sliders 807. Pins 814 are provided in the holes on the outer side of the locking bottom plate 811, and the pins 814 are located outside the sliders 807. The locking vertical plate 812 is fixedly connected to the upper surface of the locking bottom plate 811. The locking screw 813 passes through the locking vertical plate 812 from right to left. The locking rod 815 passes through the inner hole of the locking screw 813, and a spring 817 is provided between it and the locking screw 813. The right end of the locking rod 815 is fixedly connected to the top shaft 816, and the trapezoidal nut 818 is screwed on the locking screw 813.

[0043] The battery cell module is placed on the battery cell backing plate 804. While supporting the battery cell module, the battery cell backing plate 804 positions the battery cell backing plate vertically. The left end of the battery cell module abuts tightly against the fixed pressing plate 802. The movable pressing plate 803 is moved on the slide rail 806 through the slider 807 so that it tightly presses against the right end of the battery cell module. The locking module is moved on the slide rail 806 through the slider 807. When it moves to a suitable position at the right end of the movable pressing plate 803, the pin 814 is inserted into the hole of the fixed block 805 to position the locking module. The locking rod 815 compresses the spring 817 to push the top shaft 816 so that it tightly presses against the movable pressing plate 803. Then the locking trapezoidal nut 818 is tightened to ensure that the locking rod 815 does not loosen, ensuring the reliability of pressing and preventing the position of the battery cell module from changing, thus ensuring the processing quality of subsequent processes. Example 4

[0044] From Figure 5 and Figure 6 it can be seen that the square battery cell module regular pressing and packing machine of the present invention: the platen assembly 2 further includes a guiding mechanism. The guiding mechanism includes four guiding shafts I 214, four oil-free bushings I 213, and four guiding shaft stoppers I 209. The guiding shafts I 214 are symmetrically arranged around the bottom cylinder 210. The guiding shafts I 214 pass through the guiding holes of the platen 201, with their tops connected to the placement plate 204 and their bottoms fixedly connected to the guiding shaft stoppers I 209. The oil-free bushings I 213 are arranged in the guiding holes of the platen 201.

[0045] When the placement plate 204 moves up and down, the four guiding shafts I 214 move up and down along the guiding holes to prevent the placement plate 204 from shaking when moving up and down. The guiding shaft stoppers I 209 play a limiting role to prevent the guiding shafts I 214 from leaving the guiding holes when moving upward and also ensure the stability when the placement plate 204 is tightly pressed.

[0046] The platen assembly 2 further includes two multi-faceted shafts 215 and two clamps 212. The multi-faceted shafts 215 are symmetrically fixed on the left and right sides above the placement plate 204, and the clamps 212 are arranged on the multi-faceted shafts 215.

[0047] The clamps 212 clamp the bottom assembly 8 to play a role in restricting the left and right movement of the bottom assembly 8. Example 5

[0048] From Figure 8 and Figure 9It can be seen that the top pressing assembly 4 includes a top flat plate 401, a flat plate 402, a lead screw support base 403, a motor support base 404, four support columns 406, a trapezoidal lead screw 410, a lead screw support 411, a servo motor 413, a synchronous pulley I 414, a synchronous pulley II 415, and a synchronous belt 418; the four support columns 406 are symmetrically fixed at the four corners under the top flat plate 401, the flat plate 402 is located under the top flat plate 401, the lower part of the lead screw support base 403 is fixedly connected to the flat plate 402, and the upper part is fixedly connected to the lead screw support 411. The synchronous pulley I 414 is installed on the lead screw support 411. The trapezoidal lead screw 410 passes through the hole of the top flat plate 401 and is connected to the inner hole of the synchronous pulley I 414; the lower part of the motor support base 404 is fixedly connected to the flat plate 402, the servo motor 413 passes through the hole of the top flat plate 401 and is connected to the motor support base 404, the synchronous pulley II 415 is installed on the motor support base 404, and the output shaft of the servo motor 413 is connected to the inner hole of the synchronous pulley II 415. The synchronous belt 418 connects the synchronous pulley I 414 and the synchronous pulley II 415; the top pressing assembly 4 is located above the bottom assembly 8 and is fixed on the platen 201 through the four support columns 406.

[0049] When the servo motor 413 works, the synchronous pulley II 415 drives the synchronous pulley I 414 to rotate through the synchronous belt 418, so that the trapezoidal lead screw 410 drives the flat plate 402 to move up and down, thereby realizing the pressing or separation of the upper part of the square battery cell module. When the flat plate 402 presses the upper part of the battery cell, that is, the side of the battery cell pole column, the self-locking characteristic of the trapezoidal lead screw 410 is used to overcome the upward force generated by the bottom flat-top assembly. Since each battery cell has a separate telescopic mechanism to lift it, the upper part of each battery cell closely abuts against the flat plate 402. Therefore, even if the bottom of the battery cell is uneven, it can ensure that the upper surfaces of all battery cell pole columns, that is, the upper surfaces of the battery cells, are at the same height, which not only ensures the packaging quality but also ensures the quality of subsequent welding of the packaged battery cells and guarantees the qualification rate of welding. Embodiment 6

[0050] From Figure 8 、 Figure 9 It can be seen that the top pressing assembly 4 further includes a guiding mechanism. The guiding mechanism includes four guiding shafts II 416, four oil-free bushings II 417, and four guiding shaft retaining plates II 408. The guiding shafts II 416 are symmetrically arranged around the trapezoidal lead screw 410. The guiding shafts II 416 pass through the guiding holes of the top flat plate 401. Their bottom parts are fixedly connected to the flat plate 402, and their upper parts are fixedly connected to the guiding shaft retaining plates II 408. The oil-free bushings II 417 are arranged in the guiding holes of the top flat plate 401.

[0051] When the flat plate 402 moves up and down, the four guide shafts II 416 move up and down along the guide holes, preventing the flat plate 402 of the placement plate from shaking when moving up and down, and also ensuring the stability when the flat plate 402 is pressed. The guide shaft stopper II 408 plays a limiting role to prevent the guide shaft II 416 from leaving the guide hole when moving downward.

[0052] The top pressing assembly 4 further includes a bakelite flat plate 409, and the bakelite flat plate 409 is fixed under the connecting flat plate 402. The bakelite flat plate 409 plays a protective role to prevent the connecting flat plate 402 from directly pressing on the square battery cell module and damaging the surface of the battery cell. Embodiment 7

[0053] Figure 10 、 Figure 11 It can be seen that the square battery cell module regular pressing and packing machine of the present invention further includes a pressing and locking assembly 5. The pressing and locking assembly 5 is arranged on the platen assembly 2 and is located on the left side of the bottom assembly 8; the pressing and locking assembly 5 includes a pressing mounting plate 501, an electric cylinder mounting plate 502, two front and rear pressing support plates 503, a sensor mounting flange 505, a sensor head 506, an electric cylinder floating joint 507, a mounting plate 509, an electric cylinder II 515, a sensor II 517, two pressing columns 510, two guide shafts III 512, two oil-free bushings III 513, and two guide shaft stoppers III 511; the front and rear ends of the pressing mounting plate 501 are respectively fixed on a pressing support plate 503, the electric cylinder mounting plate 502 is fixed on the pressing mounting plate 501, and the electric cylinder II 515 passes through the middle hole of the electric cylinder mounting plate 502 and is fixedly connected thereto; the mounting plate 509 is arranged on the right side of the electric cylinder mounting plate 502, the sensor mounting flange 505 is fixed in the middle hole of the upper part of the mounting plate 509, the sensor II 517 is arranged in the sensor mounting flange 505, and the electric cylinder floating joint 507 is in contact with the sensor head 506; the oil-free bushings III 513 are symmetrically arranged in the small holes on both sides of the middle hole of the electric cylinder mounting plate 502, the pressing columns 510 are symmetrically arranged on both sides of the sensor mounting flange 505, pass through the small holes on both sides of the middle hole of the upper part of the mounting plate 509, and the left end thereof is arranged in the inner hole of the oil-free bushing III 513; the two guide shafts III 512 are symmetrically arranged on both sides of the electric cylinder II 515, the right end thereof is arranged in the inner hole of the oil-free bushing III 513, and the left end thereof is provided with a guide shaft stopper III 511; the pressing support plate 503 is fixed on the platen 201.

[0054] When the electric cylinder II 515 works, it drives the sensor head 506 to move left and right through the electric cylinder floating joint 507, and the mounting plate 509 drives the pressing column 510 to move left and right, so as to realize the pressing or separation of the left side of the square battery cell module. The guide shaft III 512 plays a guiding role. Embodiment 8

[0055] From Figure 12 、Figure 13 , Figure 14 It can be seen that the regular pressing and packing machine for square battery cell modules of the present invention further includes a blocking assembly 6 and a lifting and pressing assembly 7. The blocking assembly 6 and the lifting and pressing assembly 7 are both connected to the top pressing assembly 4 and are respectively located in front of and behind the top pressing assembly 4. The blocking assembly 6 includes a resisting fixing plate 601, nuts 602, a moving baffle 603, screw rods 604, and a bakelite baffle 605. The fixing plate 601 is fixed on the top flat plate 401. Two screw rods 604 pass through the screw holes of the resisting fixing plate 601 to connect the moving baffle 603. The screw rods 604 are tightened by the nuts 602. The bakelite baffle 605 is fixed on the moving baffle 603. The lifting and pressing assembly 7 includes a lifting mounting plate 701, a sliding mounting plate 702, a cylinder push plate 703, a cylinder mounting seat 704, a lifting baffle 705, a lifting bakelite baffle 706, a sensor flange 707, an electric cylinder rod head 708, a sensor head 709, a sensor I 711, an electric cylinder I 714, two linear guide sliders 715, and a locking cylinder 716. The lower parts of the two sliding mounting plates 702 are fixed on the top flat plate 401. The lifting mounting plate 701 is located behind the sliding mounting plate 702. The two linear guide sliders 715 are symmetrically fixed on the lifting mounting plate 701 and cooperate with the tracks behind the sliding mounting plate 702. The cylinder mounting seat 704 is fixed on the top flat plate 401. The locking cylinder 716 is installed on the cylinder mounting seat 704. The cylinder push plate 703 is located below the locking cylinder 716. Its vertical plate is fixed on the lifting mounting plate 701. The hole in its horizontal plate is sleeved on the piston rod of the locking cylinder 716 and is locked by a nut. The electric cylinder I 714 is arranged behind the lifting mounting plate 701 and is connected to the hole at the lower part of the lifting mounting plate 701. The lifting baffle 705 is located at the lower part of the lifting mounting plate 701. The sensor flange 707 is fixed behind the lifting baffle 705. The sensor I 711 is arranged inside the sensor flange 707. The electric cylinder rod head 708 is in contact with the sensor head 709.

[0056] When the locking cylinder 716 works, the lifting mounting plate 701 drives the lifting baffle 705 to move up and down. When the electric cylinder I 714 works, the electric cylinder rod head 708 pushes the sensor head 709 to move back and forth, so that the lifting baffle 705 moves back and forth. By combining the movements of the locking cylinder 716 and the electric cylinder I 714, the lifting baffle 705 first moves downward and then forward to tightly press the square battery cell module from the back. The lifting baffle 705 first moves backward and then upward to release the square battery cell module. Example 9

[0057] From Figure 13 , Figure 14It can be seen that the step-up and step-down pressing assembly 7 further includes a guiding mechanism. The guiding mechanism includes two guiding shaft stoppers IV 710, two guiding shafts IV 712, and two oil-free bushings IV 713. The two guiding shafts IV 712 are symmetrically arranged on the left and right sides of the electric cylinder I 714. The guiding shafts IV 712 pass through the guiding holes of the lifting mounting plate 701. The front ends thereof are fixedly connected to the lifting baffle 705, and the guiding shaft stoppers IV 710 are arranged at the rear ends. The oil-free bushings IV 713 are arranged in the guiding holes of the lifting baffle 705.

[0058] When the lifting baffle 705 moves left and right, the four guiding shafts IV 712 move back and forth along the guiding holes, preventing the lifting baffle 705 from shaking when moving back and forth, and also ensuring the stability when the lifting baffle 705 is pressed. The guiding shaft stoppers IV 710 play a limiting role to prevent the guiding shafts IV 712 from leaving the guiding holes when moving backward. When the lifting baffle 705 moves up and down, the linear guide slider 715 moves up and down along the sliding mounting plate 702, preventing the lifting baffle 705 from shaking when moving up and down.

[0059] The working principle of the device of the present invention is as follows: After placing the square battery cell module on the battery cell backing plate 804 in the bottom assembly 8, the top block 304 in the bottom leveling assembly 3 extends out from the slot of the bottom plate 801 and presses the square battery cell module from the bottom, and the flat plate 402 in the top pressing assembly 4 presses the square battery cell module from above; the front of the square battery cell module leans against the moving baffle 603, and the lifting baffle 705 in the step-up and step-down pressing assembly 7 moves downward and then forward to tightly press the square battery cell module from the rear; the right side of the square battery cell module leans against the fixed pressing plate 802, and the pressing column 510 in the pressing and locking assembly 5 tightly presses the square battery cell module from the left. Then, an operator uses a strapping machine to strap the square battery cell module into a whole.

[0060] That is to say, the device of the present invention positions the battery cells in the width direction by setting a dead stop on the operator side and using a cylinder and an electric cylinder to push the battery cells towards the operator side on the other side; an electric cylinder is arranged below the battery cells to drive the entire bottom leveling assembly to move up and down, and the top column passes through the bottom assembly to lift the bottom surface of the battery cells. The bottom leveling assembly has the function of stretching for each battery cell, and each battery cell has a separate elastic stretching mechanism to overcome the self-weight of the battery cell and lift the battery cell; on the side of the battery cell pole surface at the upper part of the battery cells, a servo motor is arranged to drive the positioning mechanism to move up and down, and the self-locking characteristic of the trapezoidal lead screw is used to overcome the upward force generated by the lower positioning mechanism, taking the upper part as a reference to ensure that the pole surfaces of all battery cells are at the same height; a dead stop is arranged on the right side of the operator, and a servo electric cylinder is arranged on the left side based on this as a reference to provide the pressing power.

[0061] The advantages of the device of the present invention are as follows: First, the present invention tightens or compresses the six surfaces of the square battery cell module, ensuring the regularity of the square battery cell module during packaging, thereby ensuring the packaging quality; Second, when the square battery cell module is regularly positioned and compressed, it is leveled from the bottom, ensuring that the electrode post surface of the upper part of the battery cell is horizontal and ensuring the welding quality of subsequent workstations; Third, a pressure sensor with a floating connection is set at the compression end to monitor the pressure in real time and upload the pressure value to the system, ensuring the controllability of the pressure.

Claims

1. A square battery cell module regular compaction and packing machine, characterized in that: It includes a frame (1), a platen assembly (2), a bottom leveling assembly (3), a top pressing assembly (4), a bottom assembly (8), and a positioning block (9); the platen assembly (2) is fixed on the frame (1), the bottom leveling assembly (3) is arranged on the platen assembly (2), the positioning block (9) is fixed on the platen assembly (2), the bottom assembly (8) is arranged on the positioning block (9) and above the bottom leveling assembly (3), and the top pressing assembly (4) is arranged on the platen assembly (2) and above the bottom assembly (8); it further includes a blocking assembly (6) and a lifting and pressing assembly (7), the blocking assembly (6) and the lifting and pressing assembly (7) are both connected to the top pressing assembly (4), and are respectively located in front of and behind the top pressing assembly (4); the blocking assembly (6) includes a resisting fixing plate (601), a nut (602), a moving baffle (603), a screw rod (604), and a bakelite baffle (605); the fixing plate (601) is fixed on the top flat plate (401), two screw rods (604) pass through the screw holes of the resisting fixing plate (601) to connect the moving baffle (603), the screw rods (604) are tightened by nuts (602), and the bakelite baffle (605) is fixed on the moving baffle (603); the lifting and pressing assembly (7) includes a lifting mounting plate (701), a sliding mounting plate (702), a cylinder push plate (703), a cylinder mounting seat (704), a lifting baffle (705), a lifting bakelite baffle (706), a sensor flange (707), an electric cylinder rod head (708), a sensor head (709), a sensor I (711), an electric cylinder I (714), two linear guide sliders (715), and a locked cylinder (716); the lower parts of two sliding mounting plates (702) are fixed on the top flat plate (401), the lifting mounting plate (701) is located behind the sliding mounting plates (702), two linear guide sliders (715) are symmetrically fixed on the lifting mounting plate (701) and cooperate with the tracks behind the sliding mounting plates (702); the cylinder mounting seat (704) is fixed on the top flat plate (401), the locked cylinder (716) is installed on the cylinder mounting seat (704), the cylinder push plate (703) is located below the locked cylinder (716), its vertical plate is fixed on the lifting mounting plate (701), and the hole in its horizontal plate is sleeved on the piston rod of the locked cylinder (716) and locked by a nut; the electric cylinder I (714) is arranged behind the lifting mounting plate (701) and connected to the hole in the lower part of the lifting mounting plate (701), the lifting baffle (705) is located in the lower part of the lifting mounting plate (701), the sensor flange (707) is fixed behind the lifting baffle (705), the sensor I (711) is arranged in the sensor flange (707), and the electric cylinder rod head (708) contacts the sensor head (709); the frame (1) is a box-shaped part with an opening on the top;The platen assembly (2) includes a platen (201), a bottom sensor mounting flange (202), a bottom cylinder rod head (203), a placement plate (204), a support plate (205), a bottom cylinder mounting bracket (206), a bottom sensor top head (208), a bottom cylinder (210), and a bottom sensor (211); the bottom sensor mounting flange (202) is arranged in the central hole of the platen (201), the bottom sensor (211) is fixed on the bottom sensor mounting flange (202), the top surface of the bottom sensor (211) is connected to the support plate (205), and the upper surface of the support plate (205) is connected to the placement plate (204); the bottom cylinder mounting bracket (206) is fixed under the platen (201), the cylinder body of the bottom cylinder (210) is fixedly connected to the bottom cylinder mounting bracket (206), the bottom cylinder rod head (203) is located in the lower half of the hole of the bottom sensor mounting flange (202), the bottom sensor top head (208) is located in the upper half of the hole of the bottom sensor mounting flange (202), and the bottom cylinder rod head (203) is in contact with the bottom sensor top head (208); the bottom leveling assembly (3) includes a bottom support plate (301), a plurality of top columns (302), a plurality of heightening columns (303), a plurality of top blocks (304), a plurality of linear bearings (306), and a plurality of round wire helical springs (307); the linear bearings (306) are fixed in the holes of the bottom support plate (301), the lower part of the top column (302) is connected to the linear bearing (306), and the upper part is connected to the top block (304), the heightening column (303) is sleeved on the lower part of the top column (302) and fixed on the bottom support plate (301), the round wire helical spring (307) is sleeved on the upper part of the top column (302), and its upper and lower parts respectively abut against the upper end surface of the heightening column (303) and the step surface of the top column (302); the platen (201) is fixed on the frame (1), and the bottom support plate (301) is fixed on the placement plate (204); the bottom assembly (8) includes a bottom plate (801), a fixed pressing plate (802), a movable pressing plate (803), three front, middle, and rear battery cell pads (804), a locking module, a movable guiding module, and two symmetrically arranged front and rear positioning tracks; the bottom plate (801) is square, and two long strip-shaped grooves are symmetrically machined at the front and rear in the middle position; the three battery cell pads (804) are fixed in the middle of the two rectangular grooves of the bottom plate (801) and at the front and rear ends of the rectangular grooves; the movable guiding module is arranged on the front and rear outer sides of the battery cell pads (804); the fixed pressing plate (802) is fixed on the bottom plate (801) and is located on the left side of the battery cell pads (804), the movable pressing plate (803) is located on the right side of the battery cell pads (804), the locking module is located on the right side of the movable pressing plate (803), and the movable pressing plate (803) and the locking module are arranged on the movable guiding module.; 2. The square battery cell module regular compaction and packing machine according to claim 1, characterized in that: The positioning track includes multiple fixing blocks (805) which are fixed on the bottom plate (801). Through holes are provided in the middle of the fixing blocks (805), and multiple through holes form the positioning track. The moving guiding assembly includes two symmetrically arranged moving guiding units in the front and back. Each moving guiding unit includes a slide rail (806) and two sliders (807). The slide rails (806) are symmetrically fixed on the bottom plate (801), located outside the long strip-shaped groove and inside the positioning track. Two sliders (807) are arranged on the right side of each slide rail. The sliders (807) move left and right along the slide rails (806). A moving pressing plate (803) and a locking module are respectively and fixedly connected to the sliders (807).

3. The square battery cell module regular compaction and packing machine according to claim 1, wherein: The locking module includes a locking bottom plate (811), a locking vertical plate (812), a locking screw rod (813), two pins (814) in the front and back, a locking rod (815), a top shaft (816), a spring (817), and a trapezoidal nut (818). The lower surface of the locking bottom plate (811) is fixedly connected to the two sliders (807) in the front and back. Pins (814) are arranged in the holes on the outer side of the locking bottom plate (811), and the pins (814) are located outside the sliders (807). The upper surface of the locking bottom plate (811) is fixedly connected to the locking vertical plate (812). The locking screw rod (813) passes through the locking vertical plate (812) from right to left. The locking rod (815) passes through the inner hole of the locking screw rod (813), and a spring (817) is provided between it and the locking screw rod (813). The right end of the locking rod (815) is fixedly connected to the top shaft (816), and the trapezoidal nut (818) is screwed on the locking screw rod (813).

4. The square battery cell module regular compaction and packing machine according to claim 1, characterized in that: The top pressing assembly (4) includes a top flat plate (401), a flat plate (402), a lead screw support seat (403), a motor support seat (404), four struts (406), a trapezoidal lead screw (410), a lead screw support (411), a servo motor (413), a synchronous pulley I (414), a synchronous pulley II (415), and a synchronous belt (418). The four struts (406) are symmetrically fixed at the four corners under the top flat plate (401). The flat plate (402) is located under the top flat plate (401). The lower part of the lead screw support seat (403) is fixedly connected to the flat plate (402), and the upper part is fixedly connected to the lead screw support (411). The synchronous pulley I (414) is installed on the lead screw support (411). The trapezoidal lead screw (410) passes through the hole of the top flat plate (401) and is connected to the inner hole of the synchronous pulley I (414). The lower part of the motor support seat (404) is fixedly connected to the flat plate (402). The servo motor (413) passes through the hole of the top flat plate (401) and is connected to the motor support seat (404). The synchronous pulley II (415) is installed on the motor support seat (404). The output shaft of the servo motor (413) is connected to the inner hole of the synchronous pulley II (415). The synchronous belt (418) connects the synchronous pulley I (414) and the synchronous pulley II (415). The top pressing assembly (4) is located above the bottom assembly (8) and is fixed on the table board (201) through the four struts (406).

5. The square battery cell module regular compaction and packing machine according to claim 1, characterized in that: The platen assembly (2) further includes a guiding mechanism, which includes four guiding shafts I (214), four oil-free bushings I (213), and four guiding shaft stoppers I (209); the guiding shafts I (214) are symmetrically arranged around the bottom electric cylinder (210), the guiding shafts I (214) pass through the guiding holes of the platen (201), their tops are connected to the placement plate (204), their bottoms are fixedly connected to the guiding shaft stoppers I (209), and the oil-free bushings I (213) are arranged in the guiding holes of the platen (201).

6. The square battery cell module regular compaction and packing machine according to claim 1, wherein: The platen assembly (2) further includes two multi-faceted shafts (215) and two clamps (212). The multi-faceted shafts (215) are symmetrically fixed on the left and right sides above the placement plate (204), and the clamps (212) are arranged on the multi-faceted shafts (215).

7. The square battery cell module regular compaction and packing machine according to claim 4, characterized in that: The top pressing assembly (4) further includes a guiding mechanism, which includes four guiding shafts II (416), four oil-free bushings II (417), and four guiding shaft shims II (408). The guiding shafts II (416) are symmetrically arranged around the trapezoidal lead screw (410), the guiding shafts II (416) pass through the guiding holes of the top flat plate (401), their bottoms are fixedly connected to the flat plate (402), their upper parts are fixedly connected to the guiding shaft shims II (408), and the oil-free bushings II (417) are arranged in the guiding holes of the top flat plate (401).

8. The square battery cell module regular compaction and packing machine according to claim 4, characterized in that: The top pressing assembly (4) further includes a bakelite flat plate (409), and the bakelite flat plate (409) is fixed under the connecting flat plate (402).

9. The square battery cell module regular compaction and packing machine according to claim 1, characterized in that: The square battery cell module regular pressing and packing machine further includes a pressing and locking assembly (5). The pressing and locking assembly (5) is arranged on the platen assembly (2) and is located on the left side of the bottom assembly (8). The pressing and locking assembly (5) includes a pressing mounting plate (501), an electric cylinder mounting plate (502), two front and rear pressing support plates (503), a sensor mounting flange (505), a sensor head (506), an electric cylinder floating joint (507), a mounting plate (509), an electric cylinder II (515), a sensor II (517), two pressing columns (510), two guide shafts III (512), two oil-free bushings III (513), and two guide shaft stoppers III (511). The front and rear ends of the pressing mounting plate (501) are respectively fixed to a pressing support plate (503). The electric cylinder mounting plate (502) is fixed to the pressing mounting plate (501). The electric cylinder II (515) passes through the middle hole of the electric cylinder mounting plate (502) and is fixedly connected thereto. The mounting plate (509) is arranged on the right side of the electric cylinder mounting plate (502). The sensor mounting flange (505) is fixed in the middle hole at the upper part of the mounting plate (509). The sensor II (517) is arranged in the sensor mounting flange (505). The electric cylinder floating joint (507) is in contact with the sensor head (506). The oil-free bushings III (513) are symmetrically arranged in the small holes on both sides of the middle hole of the electric cylinder mounting plate (502). The pressing columns (510) are symmetrically arranged on both sides of the sensor mounting flange (505) and pass through the small holes on both sides of the middle hole at the upper part of the mounting plate (509). The left end thereof is arranged in the inner hole of the oil-free bushing III (513). The two guide shafts III (512) are symmetrically arranged on both sides of the electric cylinder II (515). The right end thereof is arranged in the inner hole of the oil-free bushing III (513). The left end thereof is provided with a guide shaft stopper III (511). The pressing support plate (503) is fixed to the platen (201).

10. The square battery cell module regular compaction and packing machine according to claim 1, characterized in that: The lifting and pressing assembly (7) further includes a guiding mechanism. The guiding mechanism includes two guide shaft stoppers IV (710), two guide shafts IV (712), and two oil-free bushings IV (713). The two guide shafts IV (712) are symmetrically arranged on the left and right sides of the electric cylinder I (714). The guide shafts IV (712) pass through the guiding holes of the lifting mounting plate (701). The front end thereof is fixedly connected to the lifting baffle (705). The rear end is provided with a guide shaft stopper IV (710). The oil-free bushings IV (713) are arranged in the guiding holes of the lifting baffle (705).

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