Battery grid forming device and method

Abstract

The present invention discloses a battery grid forming device and method thereof. The battery grid forming device includes a base, a linear reciprocating driving device, a rotary driving device and a wire forming device; the wire forming device includes two bending arms, each of which is provided with a plurality of bending mechanisms along the length extension direction; the rotary driving device is provided with two power output ends; the fixed part of the rotary driving device is installed on the base, and the two power output ends of the rotary driving device are connected to the two bending arms one by one; the linear reciprocating driving device is provided with a linear reciprocating driving mechanism for each bending arm; each linear reciprocating driving mechanism includes a linear reciprocating driving power mechanism and a push rod. It can be seen that the present invention can quickly and stably form the wire without damaging the appearance. Driven by a servo, the forward speed of the push rod can be accurately controlled, which is more accurate and reliable than the existing bending forming device.

Description

Technical Field

[0001] The invention relates to a battery grid forming device and a method thereof, belonging to the technical field of battery production and manufacturing. Background Art

[0002] When the battery grid is formed, the fixed profiling structure damages the pattern on the surface of the wire, making it difficult to ensure the quality of the product. The existing wire forming method is a single bending forming with an arm-type, and using a cylinder as a power source will damage the product. The overall mechanism is complex but the consistency and effect are unstable. Summary of the invention

[0003] The purpose of the present invention is to provide a battery grid forming device with a simple and reasonable structure, which can quickly and stably form iron wires without damaging the appearance. Driven by a servo, the speed of the push rod can be accurately controlled, which is more accurate and reliable than the existing bending forming device.

[0004] In order to achieve the above technical objectives, the present invention will adopt the following technical solutions:

[0005] A battery grid forming device comprises: a base, a linear reciprocating driving device, a rotary driving device and a wire forming device, wherein:

[0006] The iron wire forming device comprises two bending arms, each of which is provided with a plurality of bending mechanisms along the length extension direction;

[0007] The rotary drive device is provided with two power output ends; the fixed part of the rotary drive device is installed on the base, and the two power output ends of the rotary drive device are connected to the two bending arms one by one;

[0008] The linear reciprocating driving device is provided with a linear reciprocating driving mechanism for each bending arm; each linear reciprocating driving mechanism includes a linear reciprocating driving power mechanism and a push rod, the fixed part of the linear reciprocating driving power mechanism is installed on the base, the power output end is connected to one end of the push rod, and the other end of the push rod is directed to the bending mechanism;

[0009] Under the power of the rotary drive device, the two bending arms can rotate synchronously to a preset angle;

[0010] Under the power of the linear reciprocating driving power mechanism, the bending mechanism is driven by the push rod to bend the iron wire.

[0011] Preferably, each bending mechanism comprises a roller pushing mechanism, a return spring and a contoured roller, wherein:

[0012] The roller pushing mechanism includes a first slider and a first slide rail used in conjunction with each other; the first slide rail is laid on the bending arm, and the laying direction of the first slide rail is perpendicular to the length extension direction of the bending arm; the first slider is movably mounted on the first slide rail;

[0013] A return spring is arranged between the first sliding block and the bending arm at the laying position of the first slide rail, and the elastic expansion and contraction direction of the return spring is parallel to the laying direction of the first slide rail;

[0014] The contoured roller is linked to the first slider, and a roller is mounted on the outer end of the first slider.

[0015] Preferably, the roller is mounted on the bending arm via a roller mounting, and the contoured roller is connected to the first slide via a roller mounting.

[0016] Preferably, the rotary drive device includes a servo motor, a reducer and a gear transmission mechanism. The power output end of the servo motor is connected to the power input end of the gear transmission mechanism through the reducer. The gear transmission mechanism is provided with two power output ends, which are respectively connected to the two bending arms one by one.

[0017] Preferably, a pinion is mounted on the output shaft of the reducer, and the gear transmission mechanism comprises a primary large gear, two secondary transmission gears and two output gears, and the primary large gear, two secondary transmission gears and two output gears are all positioned on the base through bearings;

[0018] The first-stage large gear meshes with the small gear and the two second-stage transmission gears respectively, and the two second-stage transmission gears mesh with the two output gears in a one-to-one correspondence.

[0019] Preferably, the linear reciprocating driving power mechanism includes a driving motor, a pulley transmission mechanism and a ball screw mechanism, wherein:

[0020] The fixed part of the driving motor is installed on the base, and the power output end of the driving motor is connected to the power input end of the ball screw mechanism through a pulley transmission mechanism. The ball screw mechanism includes a ball screw and a second slider installed on the ball screw. The second slider is threadedly connected to the ball screw. One end of the push rod is connected to the second slider, and the other end is arranged toward the bending arm. The push rod can drive the bending mechanism to bend the iron wire under the power output of the driving motor.

[0021] Preferably, the pulley transmission mechanism includes a driving pulley, a driven pulley and a belt wrapped around the driving pulley and the driven pulley. The driving pulley is connected to the power output end of the driving motor, and the driven pulley is connected to one end of the ball screw.

[0022] Preferably, a front end of the push rod is provided with a push inclined surface on a side facing the bending mechanism.

[0023] Another technical object of the present invention is to provide a battery grid forming method, which is implemented based on the above-mentioned battery grid forming device and includes the following steps:

[0024] Step 1: Start the rotation drive device to drive the two bending arms to rotate at an angle α until the bending arms are in a position that ensures that the wire is bent into a U shape;

[0025] Step 2: positively start the linear reciprocating driving power mechanism to drive the push rod to move toward the bending mechanism until the push rod drives the bending mechanism to crush the wire, thereby achieving the bending of the wire;

[0026] Step 3: Reversely start the linear reciprocating driving power mechanism to pull the push rod back to its original position and reset the bending mechanism.

[0027] Preferably, in step one, the rotary drive device includes a servo motor, a reducer and a gear transmission mechanism, and starting the rotary drive device is specifically starting the servo motor; in step two, the linear reciprocating driving power mechanism includes a driving motor, a pulley transmission mechanism, and a ball screw mechanism; the bending mechanism includes a roller driving mechanism, a reset spring and a contour roller, and forward starting the linear reciprocating driving power mechanism is specifically forward starting the driving motor to drive the push rod to move toward the bending arm until the push rod rolls the first slider, prompting the first slider to drive the contour roller to roll the iron wire, thereby achieving the bending of the iron wire; in step three, reverse starting the linear reciprocating driving power mechanism is specifically reverse starting the driving motor to pull the push rod back to its original position through the ball screw, and the contour roller is retracted to the inner side of the bending arm under the action of the reset spring.

[0028] Based on the above technical objectives, the present invention has the following advantages over the prior art:

[0029] The power of the battery grid forming device described in the present invention comes from a motor, and the motor drives a gear transmission mechanism to transmit power, so that multiple iron wires can be accurately bent with better accuracy and high consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the battery grid forming device of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure of the rotary drive device;

[0032] Figure 3 is a structural schematic diagram of a gear transmission mechanism;

[0033] Figure 4 for Figure 1 A schematic diagram of the structure of the linear reciprocating propulsion device;

[0034] Figure 5 for Figure 1 A schematic diagram of the structure of the iron wire forming device;

[0035] In the figure: 001, rotary drive device; 002, linear reciprocating push device; 003, wire forming device;

[0036] 1. Servo motor; 2. Speed ​​reducer; 3. Pinion gear; 4. Secondary transmission gear a; 5. Output gear a; 6. First bending arm; 7. Second bending arm; 8. Output gear b; 9. Secondary transmission gear b; 10. First large gear;

[0037] 101, first bearing a; 102, first bearing b; 103, third bearing a; 104, third bearing b; 105, fourth bearing a; 106, fourth bearing b; 107, second bearing a; 108, second bearing b; 109, fifth bearing a; 110, fifth bearing b;

[0038] 201, driving motor; 202, fixed part of driving motor; 203, driving pulley; 204, belt; 205, fixed seat; 206, ball screw; 207, top plate; 208, side plate; 209, second slide rail; 210, push rod; 211, bottom plate;

[0039] 301, roller; 302, roller mounting member; 303, first slider; 304, first slide rail; 305, return spring; 306, roller mounting head; 307, roller mounting member; 308, contoured roller. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means any limitation to the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise specified, the relative arrangement, expressions and numerical values ​​of the components and steps described in these embodiments do not limit the scope of the present invention. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations).

[0042] Example 1

[0043] like Figure 1-5 As shown, the battery grid forming device of the present invention comprises a base, a linear reciprocating driving device, a rotary driving device and a wire forming device, wherein:

[0044] The base comprises a bottom plate and a top plate, wherein the top plate is supported above the bottom plate by two side plates.

[0045] The wire forming device includes two bending arms, each of which is provided with a plurality of bending mechanisms along the length extension direction, and each bending mechanism includes a roller pushing mechanism, a return spring and a contour roller, wherein: the roller pushing mechanism includes a first slider and a first slide rail used in conjunction with each other, the first slide rail is laid on the bending arm, and the laying direction of the first slide rail is perpendicular to the length extension direction of the bending arm. The first slider is movably mounted on the first slide rail, and a return spring is arranged between the first slider and the bending arm at the laying position of the first slide rail, and the elastic expansion and contraction direction of the return spring is parallel to the laying direction of the first slide rail, the contour roller is linked to the first slider, and the outer end of the first slider is equipped with a roller so as to be able to roll and connect with the power output end of the linear reciprocating driving device. The roller is mounted on the bending arm through a roller mounting member, and the contour roller is connected to the first slider through a roller mounting member.

[0046] The rotary drive device includes a servo motor, a reducer and a gear transmission mechanism. The power output end of the servo motor is connected to the power input end of the gear transmission mechanism through the reducer. The gear transmission mechanism is provided with two power output ends, which are respectively connected to the two bending arms in a one-to-one correspondence. Specifically, a pinion is installed on the output shaft of the reducer. The gear transmission mechanism includes a primary large gear, two secondary transmission gears and two output gears. The primary large gear, the two secondary transmission gears and the two output gears are all positioned on the base through bearings. In the accompanying drawings, the lower end is positioned and supported on the bottom plate, and the upper end is positioned and supported on the top plate, and the two output gears are connected to the two bending arms in a one-to-one correspondence. Further, the two secondary transmission gears correspond to secondary transmission gears a and b, and the upper end of the secondary transmission gear a is positioned and supported on the top plate through the first bearing a, and the lower end is positioned and supported on the bottom plate through the first bearing b. The upper end of the secondary transmission gear b is positioned and supported on the top plate through the second bearing a, and the lower end is positioned and supported on the bottom plate through the second bearing b. The two output gears correspond to output gears a and b. The upper end of output gear a is positioned and supported on the top plate through the third bearing a, and the lower end is positioned and supported on the bottom plate through the third bearing b. The upper end of output gear b is positioned and supported on the top plate through the fourth bearing a, and the lower end is positioned and supported on the bottom plate through the fourth bearing b. The upper end of the first-stage large gear is positioned and supported on the top plate through the fifth bearing a, and the lower end is positioned and supported on the bottom plate through the fifth bearing b.

[0047] In the present invention, the first-stage large gear is respectively meshed with the small gear and the two secondary transmission gears, and the two secondary transmission gears are meshed with the two output gears in a one-to-one correspondence. Therefore, the power output by the servo motor is transmitted to the first-stage large gear through the small gear, and then drives the two secondary transmission gears respectively, and then is transmitted to the corresponding bending arms through the two corresponding output gears, so that the two bending arms are rotated to a certain angle to ensure that the iron wire can be bent into a U shape. Since the gear transmission mechanism adopts a gear pair, the bending forming of both sides can be guaranteed to be consistent.

[0048] The linear reciprocating driving device is provided with a linear reciprocating driving mechanism for each bending arm; each linear reciprocating driving mechanism includes a driving motor, a pulley transmission mechanism, a ball screw mechanism and a push rod; the fixed part of the driving motor is installed on the top plate, the power output end of the driving motor is connected to the power input end of the ball screw mechanism through the pulley transmission mechanism, the ball screw mechanism includes a ball screw and a second slider installed on the ball screw, the second slider is threadedly connected to the ball screw, one end of the push rod is connected to the second slider, and the other end is arranged toward the bending arm, and the push rod can roll the first slider under the power output of the driving motor, so that the first slider drives the profiling roller to roll the iron wire to achieve the bending process of the iron wire. After the bending process is completed, the driving motor rotates in the opposite direction, the ball screw pulls the push rod back to the original position, and the profiling roller retracts the inner side of the bending arm under the action of the reset spring. The linear reciprocating driving mechanism is provided with a second slide rail, and the second slide rail is movably connected to the second slide rail.

[0049] In the present invention, the pulley transmission mechanism includes a driving pulley, a driven pulley and a belt wrapped around the driving pulley and the driven pulley. The driving pulley is connected to the power output end of the driving motor, and the driven pulley is connected to one end of the ball screw, so that the power output of the driving motor can be synchronously transmitted to the ball screw mechanism.

[0050] The front end of the push rod is provided with a push inclined surface on the side facing the bending mechanism, so as to better apply thrust to the bending mechanism, thereby prompting the contour roller in the bending mechanism to move inwards, so as to perform a bending operation on the iron wire.

[0051] Example 2

[0052] This embodiment provides a battery grid forming method, which is implemented based on the battery grid forming device described in Embodiment 1, and includes the following steps:

[0053] Step 1: Start the rotation drive device to drive the two bending arms to rotate at an angle α until the bending arms are in a position that ensures that the wire is bent into a U shape;

[0054] Considering that the rotary drive device includes a servo motor, a reducer and a gear transmission mechanism, starting the rotary drive device specifically means starting the servo motor.

[0055] Step 2: positively start the linear reciprocating driving power mechanism to drive the push rod to move toward the bending mechanism until the push rod drives the bending mechanism to crush the wire, thereby achieving the bending of the wire;

[0056] Considering that the linear reciprocating driving power mechanism includes a driving motor, a pulley transmission mechanism, and a ball screw mechanism; the bending mechanism includes a roller driving mechanism, a reset spring, and a contour roller, the positive start linear reciprocating driving power mechanism is specifically a positive start driving motor to drive the push rod to move toward the bending arm until the push rod rolls the first slider, prompting the first slider to drive the contour roller to roll the iron wire, thereby realizing the bending of the iron wire.

[0057] Step 3: Reversely start the linear reciprocating driving power mechanism to pull the push rod back to its original position and reset the bending mechanism.

[0058] The reverse starting linear reciprocating driving power mechanism is specifically a reverse starting driving motor, so as to pull the push rod back to the original position through the ball screw, and the contour roller is retracted to the inner side of the bending arm under the action of the return spring.

[0059] The present invention has been described above in conjunction with the best implementation, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A battery grid forming device, characterized in that: include: A base, a linear reciprocating driving device, a rotary driving device and a wire forming device, wherein: The iron wire forming device comprises two bending arms, each of which is provided with a plurality of bending mechanisms along the length extension direction; The rotary drive device is provided with two power output ends; the fixed part of the rotary drive device is installed on the base, and the two power output ends of the rotary drive device are connected to the two bending arms one by one; The linear reciprocating driving device is provided with a linear reciprocating driving mechanism for each bending arm; each linear reciprocating driving mechanism includes a linear reciprocating driving power mechanism and a push rod, the fixed part of the linear reciprocating driving power mechanism is installed on the base, the power output end is connected to one end of the push rod, and the other end of the push rod is directed to the bending mechanism; Under the power of the rotary drive device, the two bending arms can rotate synchronously to a preset angle; Under the power of the linear reciprocating driving power mechanism, the bending mechanism is driven by the push rod to bend the iron wire.

2. The battery grid forming device according to claim 1, characterized in that: Each bending mechanism includes a roller pushing mechanism, a return spring and a contour roller, wherein: The roller pushing mechanism includes a first slider and a first slide rail used in conjunction with each other; the first slide rail is laid on the bending arm, and the laying direction of the first slide rail is perpendicular to the length extension direction of the bending arm; the first slider is movably mounted on the first slide rail; A return spring is arranged between the first sliding block and the bending arm at the laying position of the first slide rail, and the elastic expansion and contraction direction of the return spring is parallel to the laying direction of the first slide rail; The contoured roller is linked to the first slider, and a roller is mounted on the outer end of the first slider.

3. The battery grid forming device according to claim 2, characterized in that: The roller is mounted on the bending arm via a roller mounting, while the contoured roller is connected to the first slide via a roller mounting.

4. The battery grid forming device according to claim 1, characterized in that: The rotary drive device includes a servo motor, a reducer and a gear transmission mechanism. The power output end of the servo motor is connected to the power input end of the gear transmission mechanism through the reducer. The gear transmission mechanism is provided with two power output ends, which are respectively connected to the two bending arms one by one.

5. The battery grid forming device according to claim 4, characterized in that: A pinion is mounted on the output shaft of the reducer, and the gear transmission mechanism comprises a primary large gear, two secondary transmission gears and two output gears, and the primary large gear, two secondary transmission gears and two output gears are all positioned on the base through bearings; The first-stage large gear meshes with the small gear and the two second-stage transmission gears respectively, and the two second-stage transmission gears mesh with the two output gears in a one-to-one correspondence.

6. The battery grid forming device according to claim 1, characterized in that: The linear reciprocating driving mechanism includes a driving motor, a pulley transmission mechanism and a ball screw mechanism, wherein: The fixed part of the driving motor is installed on the base, and the power output end of the driving motor is connected to the power input end of the ball screw mechanism through a pulley transmission mechanism. The ball screw mechanism includes a ball screw and a second slider installed on the ball screw. The second slider is threadedly connected to the ball screw. One end of the push rod is connected to the second slider, and the other end is arranged toward the bending arm. The push rod can drive the bending mechanism to bend the iron wire under the power output of the driving motor.

7. The battery grid forming device according to claim 6, characterized in that: The pulley transmission mechanism includes a driving pulley, a driven pulley and a belt wrapped around the driving pulley and the driven pulley. The driving pulley is connected to the power output end of the driving motor, and the driven pulley is connected to one end of the ball screw.

8. The battery grid forming device according to claim 1, characterized in that: The front end of the push rod is provided with a push inclined surface on a side facing the bending mechanism.

9. A battery grid forming method, implemented based on the battery grid forming device according to claim 1, characterized in that: The steps include: Step 1: Start the rotation drive device to drive the two bending arms to rotate at an angle α until the bending arms are in a position that ensures that the wire is bent into a U shape; Step 2: positively start the linear reciprocating driving power mechanism to drive the push rod to move toward the bending mechanism until the push rod drives the bending mechanism to crush the wire, thereby achieving the bending of the wire; Step 3: Reversely start the linear reciprocating driving power mechanism to pull the push rod back to its original position and reset the bending mechanism.

10. The battery grid forming method according to claim 9, characterized in that: In step one, the rotary drive device includes a servo motor, a reducer and a gear transmission mechanism, and starting the rotary drive device is specifically starting the servo motor; in step two, the linear reciprocating driving power mechanism includes a driving motor, a pulley transmission mechanism and a ball screw mechanism; the bending mechanism includes a roller driving mechanism, a reset spring and a contour roller, and positively starting the linear reciprocating driving power mechanism is specifically positively starting the driving motor to drive the push rod to move toward the bending arm until the push rod rolls the first slider, prompting the first slider to drive the contour roller to roll the iron wire, thereby achieving the bending of the iron wire; in step three, reversely starting the linear reciprocating driving power mechanism is specifically reversely starting the driving motor to pull the push rod back to its original position through the ball screw, and the contour roller is retracted to the inner side of the bending arm under the action of the reset spring.

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