A thickness detection device for lithium battery production

Abstract

The present invention discloses a thickness detection device for lithium battery production, which comprises a control system and an upper and lower double-layer fixed plate, wherein a front support plate is arranged on one side of the double-layer fixed plate, and a rear support plate is arranged on the other side of the double-layer fixed plate, the side views of the front support plate, the fixed plate and the rear support plate are the same and a sliding groove is opened in the center, a clamp is arranged inside the sliding groove, a connecting shaft is passed through one side of the clamp, a gear is sleeved on the connecting shaft, the other end of the connecting shaft is connected to a motor through a coupling, a first motor sleeve is arranged on the outside of the motor, a rolling shaft rod is fixedly installed on the bottom of the first motor sleeve, the clamp, the connecting shaft, the gear, the motor, the first motor sleeve and the rolling shaft rod together constitute a power mechanism, and the device solves the problem of low efficiency of manual measurement of lithium battery thickness detection.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery thickness detection devices, and in particular relates to a thickness detection device for lithium battery production. Background Art

[0002] The thickness of lithium batteries will directly affect their performance and safety. Too thin a separator may cause battery short circuit and overheating, while too thick a separator will limit the transfer speed of lithium ions and affect battery performance. Therefore, in order to ensure the quality and safety of lithium batteries themselves, it is very important to accurately measure their thickness during the production of lithium batteries.

[0003] The traditional method of measuring the thickness of lithium batteries is to directly measure with a caliper or height gauge. However, this measurement method requires manual operation and is prone to measurement errors, which can cause misjudgment of the product. It also has the disadvantages of low measurement efficiency. Moreover, this measurement method is only suitable for random inspection of products and cannot be used for thickness detection of lithium batteries in large-scale production operations. Summary of the invention

[0004] The purpose of the present invention is to provide a thickness detection device for lithium battery production in view of the existing device, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a thickness detection device for lithium battery production, comprising a control system and an upper and lower double-layer fixed plate, a front support plate is arranged on one side of the double-layer fixed plate, and a rear support plate is arranged on the other side of the double-layer fixed plate, the side views of the front support plate, the fixed plate and the rear support plate are the same and a sliding groove is opened in the center, a clamp is arranged inside the sliding groove, a connecting shaft is passed through one side of the clamp, a gear is sleeved on the connecting shaft, the other end of the connecting shaft is connected to the motor through a coupling, a first motor sleeve is arranged on the outside of the motor, a rolling shaft rod is fixedly installed on the bottom of the first motor sleeve, the clamp, the connecting shaft, the gear, the first motor sleeve of the motor and the rolling shaft rod together constitute a power mechanism, a rack is meshed and connected below the gear, a transport plate is clamped at the upper end of the clamp, and another group of the power mechanisms is arranged on the other side of the transport plate, and the two power mechanisms are distributed in a mirror-symmetrical manner with the transport plate as the center.

[0006] A first pneumatic part is arranged below the front support plate, a second pneumatic part is arranged below the rear support plate, and output ends of the first pneumatic part and the second pneumatic part are respectively glued to the lower surfaces of the front support plate and the rear support plate, each of the fixing plates is provided with placement grooves on both sides of the center, a second motor sleeve is welded inside each of the placement grooves, a reduction motor is fixedly installed inside each of the second motor sleeves, a screw is connected to the output end of each of the reduction motors, the two pairs of screws in the upper and lower double layers both pass through the detection plate, and the diameter of the circular hole of the detection plate is larger than the diameter of the screw, lifting parts are arranged on the upper and lower sides of the circular hole of the detection plate, and the lifting parts are threadedly connected to the screw, vertical support plates are fixedly arranged on the outer sides of the two screws in the upper layer, a cross beam is welded above the two vertical support plates, a distance sensor is embedded and installed below the cross beam, and the distance sensor is also embedded and installed below the center of the fixing plate of the upper layer, and a digital display is fixedly arranged on one side of one of the vertical support plates.

[0007] The present invention further illustrates that the transport plate is in an I-shape, and the upper portions of the front support plate, the fixed plate and the rear support plate are all provided with slots adapted thereto, the side view structures of the front support plate, the fixed plate and the rear support plate are the same and their lengths are all greater than the length of the transport plate, and the I-shaped structure installed on the slot adapted thereto is conducive to limiting the transport plate in four directions of up, down, left and right, so that it can slide stably under the push of the power mechanism.

[0008] The present invention further illustrates that a lithium battery is placed on the transport plate, and a pair of transverse positioning blocks and a pair of longitudinal positioning blocks are glued on the transport plate, the distance between the two transverse positioning blocks is slightly larger than the length of the lithium battery, and the distance between the longitudinal positioning blocks is slightly larger than the width of the lithium battery, and the transverse positioning blocks and the longitudinal positioning blocks are used to position the lithium battery.

[0009] The present invention further describes that a clamping block is provided on the other side of the clamp, and a notch adapted to the clamping block is opened on the sliding groove, so that the clamping block always slides in the notch when the clamp slides, thereby ensuring the stability of the sliding of the clamp.

[0010] The present invention further describes that one side of the sliding groove is provided with two grooves arranged in a gradient, namely groove one and groove two, the first motor sleeve is arranged inside the groove one, and the rolling shaft is rollingly connected to the groove one, the gear and the rack are arranged inside the groove two, and the lower surface of the rack is glued to the groove two.

[0011] The present invention further illustrates that a first side support frame is arranged on the outer side of the front support plate, and a second side support frame is arranged on the outer side of the rear support plate, two sliding shafts are welded on the inner sides of the first side support frame and the second side support frame, and slots matching the sliding shafts are opened on the front support plate and the rear support plate, and the sliding shafts and the slots are slidably connected for limiting the front support plate and the rear support plate, and the lower ends of the first pneumatic part and the second pneumatic part are respectively fixedly mounted on the bottom surfaces of the first side support frame and the second side support frame.

[0012] The present invention further describes that first connecting frames are welded to the front and rear sides of the two fixed plates, support legs are welded to both ends of the first connecting frames, a second connecting frame is welded between the first side support frame and the support leg on one side, a second connecting frame is also welded between the second side support frame and the support leg on the other side, and auxiliary support plates are welded to both sides between the first side support frame and the second side support frame below the fixed plates.

[0013] The present invention further illustrates that the electric motor, the reduction motor, the first pneumatic part, the second pneumatic part, the screw rod, the distance sensor and the digital display are all electrically connected to the control system.

[0014] The present invention further illustrates that the control system also includes the following operations:

[0015] The two transport plates are respectively located on the front support plate and the rear support plate, and when the front support plate and the rear support plate are both located on the upper layer, after the staff places the two lithium batteries on the two transport plates, the control system controls the second pneumatic part to support the rear support plate to be flush with the fixed plate below, the two motors on the upper layer rotate forward, and the two motors on the lower layer rotate reversely, and the transport plates are driven to move to the bottom of the inspection plate by sliding on the rack through the power mechanism, and the upper and lower groups of motors are controlled to stop rotating at the same time, and then the four reduction motors are controlled to rotate forward to drive the screw to rotate, so that the lifting member threadedly connected to the screw The detection plate sandwiched in the middle is driven to move downward until it contacts the top surface of the lithium battery for thickness detection. At the same time, the first pneumatic part is controlled to lift the front support plate to be flush with the fixed plate below, and the second pneumatic part is controlled to lift the rear support plate to be flush with the fixed plate above. After the detection is completed, the four reduction motors are reversed until the detection plate rises to the initial position. At the same time, the motor is controlled to continue rotating until the two transport plates are respectively placed on the rear support plate and the front support plate, and the first pneumatic part is controlled to lift the front support plate to be flush with the fixed plate above, to the initial position, and the staff removes the lithium battery after the detection.

[0016] The present invention further illustrates that the control system also includes the following operations:

[0017] In the control system, the distance between the upper and lower detection plates and the upper surface of the corresponding transport plate of each layer is set to a, the qualified thickness range of the lithium battery is between e and f, and the digital display is provided with upper and lower display screens and a speaker. When the output end of the screw is fully retracted, the upper detection plate is close to the crossbeam, and the lower detection plate is close to the upper fixed plate. The value detected by the distance sensor is 0. When the lithium battery is transmitted to the bottom of the detection plate, the output end of the screw is extended to drive the detection plate to move downward until it is close to the upper surface of the lithium battery. At this time, the data detected by the upper distance sensor is c, and the data detected by the lower distance sensor is g. The control system calculates that the thickness of the upper lithium battery is d=ab, and the thickness of the lower lithium battery is g=ac. At this time, the values ​​displayed on the upper and lower display screens of the digital display are d and g respectively. When at least one of d and g is not within the range of e to f, the speaker is controlled to sound an alarm.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] (1) By providing the motor as a power source, the connecting shaft drives the gear to rotate, and the gear moves relatively on the rack by meshing with the rack. At the same time, the connecting shaft drives the clamp at the other end to move accordingly, thereby realizing the transmission of the lithium battery, thereby performing the detection work. Automatic transmission improves the detection efficiency, and the thickness detection of a large number of lithium batteries can be performed;

[0020] (2) The screw is used as a power source to drive the detection plate to detect the thickness of the lithium battery, and the thickness of the lithium battery is displayed by the distance sensor and the digital display, thereby completing the automatic detection of the thickness of the lithium battery;

[0021] (3) The double-layered fixing plate and the first pneumatic part and the second pneumatic part respectively drive the front supporting plate and the rear supporting plate to perform lifting operations, thereby facilitating automatic resetting of the transport plate and improving the efficiency of lithium battery testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic structural diagram of a transmission part of an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 3 is a sectional view of a transmission part of an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of a power mechanism of an embodiment of the present invention;

[0027] Figure 5 is a side view of a transmission part of an embodiment of the present invention;

[0028] Figure 6 is an enlarged view of region A of an embodiment of the present invention;

[0029] In the figure: 1, front support plate; 2, rear support plate; 3, fixed plate; 31, placement groove; 4, sliding groove; 41, notch one; 42, notch two; 5, clamp; 51, block; 6, connecting shaft; 7, gear; 8, motor; 9, first motor sleeve; 91, rolling shaft; 10, rack; 11, first pneumatic part; 111, second pneumatic part; 12, transport plate; 121, horizontal positioning block; 122, longitudinal positioning block; 13, first side support frame; 131, sliding shaft; 132, second side support frame; 133, auxiliary support plate; 14, support leg; 15, first connecting frame; 151, second connecting frame; 16, vertical support plate; 17, crossbeam; 171, distance sensor; 18, screw; 19, detection plate; 191, lifting member; 20, digital display; 21, lithium battery; 22, second motor sleeve; 23, reduction motor. DETAILED DESCRIPTION

[0030] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and 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 creative work are within the scope of protection of the present invention.

[0031] An embodiment of the present invention provides a thickness detection device for lithium battery production. Figure 1 FIG. 1 is a schematic diagram of the transmission structure of an embodiment of the present invention, as shown in FIG. Figure 1 As shown, a thickness detection device for lithium battery production includes a control system and upper and lower double-layer fixed plates 3, a front support plate 1 is arranged on one side of the double-layer fixed plate 3, and a rear support plate 2 is arranged on the other side of the double-layer fixed plate 3. The side views of the front support plate 1, the fixed plate 3 and the rear support plate 2 are all the same and a sliding groove 4 is opened in the center. Figure 3As shown, a clamp 5 is provided inside the sliding groove 4, a connecting shaft 6 is passed through one side of the clamp 5, a gear 7 is sleeved on the connecting shaft 6, the other end of the connecting shaft 6 is connected to the motor 8 through a coupling, a first motor sleeve 9 is provided on the outer side of the motor 8, a rolling shaft 91 is fixedly installed on the bottom of the first motor sleeve 9, the clamp 5, the connecting shaft 6, the gear 7, the first motor sleeve 9 of the motor 8 and the rolling shaft 91 together constitute a power mechanism, a rack 10 is meshed and connected below the gear 7, the upper end of the clamp 5 clamps a transport plate 12, and another set of power mechanisms is provided on the other side of the transport plate 12, and the two power mechanisms are distributed in a mirror-symmetrical manner with the transport plate 12 as the center.

[0032] The power mechanism uses the electric motor 8 as a power source, and drives the gear 7 to rotate through the connecting shaft 6. The gear 7 moves relatively on the rack 10 through the engagement with the rack 10. At the same time, the connecting shaft 6 drives the clamp 5 at the other end to move accordingly, and the rolling shaft 91 rolls accordingly, reducing the friction during sliding and making the pushing work of the transport plate 12 smoother.

[0033] like Figure 1 As shown, a first pneumatic part 11 is disposed below the front support plate 1, a second pneumatic part 111 is disposed below the rear support plate 2, and output ends of the first pneumatic part 11 and the second pneumatic part 111 are glued to the lower surfaces of the front support plate 1 and the rear support plate 2, respectively.

[0034] like Figure 1 , Figure 5 and Figure 6 As shown, placement grooves 31 are provided on both sides of the center of each fixed plate 3, and a second motor sleeve 22 is welded inside each placement groove 31. A reduction motor 23 is fixedly installed inside each second motor sleeve 22, and a screw 18 is connected to the output end of each reduction motor 23. The two pairs of screws 18 of the upper and lower double layers pass through the detection plate 19, and the diameter of the circular hole of the detection plate 19 is larger than the diameter of the screw 18. Lifting pieces 191 are provided on the upper and lower sides of the circular hole of the detection plate 19, and the lifting pieces 191 are threadedly connected to the screw 18. Vertical support plates 16 are fixedly provided on the outer sides of the two screws 18 of the upper layer, and a cross beam 17 is welded above the two vertical support plates 16. A distance sensor 171 is embedded and installed below the cross beam 17, and a distance sensor 171 is also embedded and installed below the center of the upper fixed plate 3, and a digital display 20 is fixedly provided on one side of a vertical support plate 16.

[0035] When the device is turned on, the two transport plates 12 are respectively located on the front support plate 1 and the rear support plate (2), and when the front support plate 1 and the rear support plate 2 are both located on the upper layer, the staff will place two lithium batteries 21 on the two transport plates 12, and the second pneumatic member 111 will support the rear support plate 2 to be flush with the fixed plate 3 below. The upper motor 8 will rotate forward, and the lower motor 8 will rotate reversely, so that the power mechanism drives the two transport plates 12 to transport the lithium batteries 21 to the middle of the fixed plate 3. The four reduction motors 23 will rotate forward to drive the screw 18 to rotate, so that the lifting member 191 threadedly connected to the screw 18 drives the detection plate 19 sandwiched in the middle to move downward until it contacts the top surface of the lithium battery 21 for thickness detection. At the same time, the detection The first pneumatic part 11 lifts the front support plate 1 to be flush with the fixed plate 3 below, and the second pneumatic part 111 lifts the rear support plate 2 to be flush with the fixed plate 3 above. After the detection is completed, the four reduction motors 23 reverse until the detection plate 19 is raised to the initial position. At the same time, the upper motor 8 continues to rotate forward and the lower motor 8 continues to reverse until the transport plate 12 moves to the terminal position, that is, the power mechanism and the transport plate 12 on both sides are completely located on the rear support plate 2 and the front support plate 1 respectively. Then the first pneumatic part 11 lifts the front support plate 1 to be flush with the fixed plate 3 above. The staff removes the lithium batteries 21 that have been inspected on both sides, continues to place the lithium batteries 21, and repeats the above steps for thickness detection.

[0036] In certain preferred embodiments, Figure 3 As shown, the transport plate 12 is in an I-shape, and the upper parts of the front support plate 1, the fixed plate 3 and the rear support plate 2 are all provided with matching grooves. The I-shaped structure is installed on the matching grooves to facilitate limiting the transport plate 12 in four directions of up, down, left and right, so that it can slide stably under the push of the power mechanism.

[0037] like Figure 2 As shown, the front support plate 1, the fixed plate 3 and the rear support plate 2 have the same side view structure and their lengths are all greater than the length of the transport plate 12, which is conducive to the upper and lower conveying of the transport plate 12. In some preferred embodiments, a lithium battery 21 is placed on the transport plate 12, and a pair of transverse positioning blocks 121 and a pair of longitudinal positioning blocks 122 are glued to the transport plate 12. The distance between the two transverse positioning blocks 121 is slightly greater than the length of the lithium battery 21, and the distance between the longitudinal positioning blocks 122 is slightly greater than the width of the lithium battery 21. The transverse positioning blocks 121 and the longitudinal positioning blocks 122 are used to position the lithium battery 21.

[0038] In certain preferred embodiments, Figure 3 and Figure 4 As shown, a clamping block 51 is provided on the other side of the clamp 5, and a notch adapted to the clamping block 51 is opened on the sliding groove 4. When the clamp 5 slides, the clamping block 51 always slides in the notch to ensure the stability of the sliding of the clamp 5.

[0039] In certain preferred embodiments, Figure 2 and Figure 3 As shown, one side of the sliding groove 4 is provided with two notches arranged in a gradient, namely, notch one 41 and notch two 42, the first motor sleeve 9 is arranged inside the notch one 41, and the rolling shaft 91 is rollingly connected with the notch one 41, the gear 7 and the rack 10 are arranged inside the notch two 42, and the lower surface of the rack 10 is glued in the notch two 42. The structure of the sliding groove 4 is used to limit the internal power mechanism, which is conducive to the stable operation of the power mechanism.

[0040] In certain preferred embodiments, Figure 1 As shown, a first side support frame 13 is provided on the outer side of the front support plate 1, and a second side support frame 132 is provided on the outer side of the rear support plate 2. Two sliding shafts 131 are welded on the inner sides of the first side support frame 13 and the second side support frame 132. Notches matching the sliding shafts 131 are opened on the front support plate 1 and the rear support plate 2. The sliding shafts 131 and the notches are slidably connected to the front support plate 1 and the rear support plate 2, and the lower ends of the first pneumatic part 11 and the second pneumatic part 111 are fixedly mounted on the bottom surfaces of the first side support frame 13 and the second side support frame 132, respectively.

[0041] In certain preferred embodiments, Figure 1 As shown, first connecting frames 15 are welded to both front and rear sides of the two fixed plates 3, supporting legs 14 are welded to both ends of the first connecting frames 15, two second connecting frames 151 are welded between the first side supporting frames 13 on the front and rear sides and the supporting legs 14 on one side, two second connecting frames 151 are welded between the second side supporting frames 132 on the front and rear sides and the supporting legs 14 on the other side, and auxiliary supporting plates 133 are welded to both sides below the fixed plates 3 between the first side supporting frames 13 and the second side supporting frames 132. The first side supporting frames 13, the second side supporting frames 132 and the supporting legs 14 are used to support the device itself, and the connection of the first connecting frames 15 and the second connecting frames 151 facilitates connecting the device into a whole, and the auxiliary supporting plates 133 are used to provide auxiliary support to the fixed plate 3 of the lower layer and the front support plate 1 and the rear support plate 2 moved to the lower layer.

[0042] In the above embodiment, the electric motor 8, the reduction motor 23, the first pneumatic member 11, the second pneumatic member 111, the screw 18, the distance sensor 171 and the digital display 20 are all electrically connected to the control system.

[0043] In certain preferred embodiments, the control system further comprises the following operations:

[0044] When the two transport plates 12 are both at the starting position, that is, the two transport plates 12 are respectively located on the front support plate 1 and the rear support plate 2, and the front support plate 1 and the rear support plate 2 are both located on the upper layer, after the staff places the two lithium batteries 21 on the two transport plates 12, the control system controls the second pneumatic part 111 to support the rear support plate 2 to be flush with the fixing plate 3 below, the two motors 8 on the upper layer rotate forward, and the two motors 8 on the lower layer rotate reversely, and the transport plates 12 are driven to move to the bottom of the detection plate 19 by sliding on the rack 10 through the power mechanism, and the upper and lower groups of motors 8 are controlled to stop rotating at the same time, and then the four reduction motors 23 are controlled to rotate forward to drive the screw 18 to rotate, so that the lifting member 191 threadedly connected to the screw 18 drives the detection plate 19 sandwiched in the middle to move downward. It moves until it contacts the top surface of the lithium battery 21 for thickness detection. At the same time, the first pneumatic part 11 is controlled to lift the front support plate 1 to be flush with the fixed plate 3 below, and the second pneumatic part 111 lifts the rear support plate 2 to be flush with the fixed plate 3 above. After the detection is completed, the four reduction motors 23 are reversed until the detection plate 19 rises to the initial position. At the same time, the motor 8 is controlled to continue to rotate until the two transport plates 12 are respectively located on the rear support plate 2 and the front support plate 1, and the first pneumatic part 11 is controlled to lift the front support plate 1 to be flush with the fixed plate 3 above, to the initial position. The staff removes the lithium battery 21 that has been tested, and the cycle control is carried out in sequence so that the upper and lower layers of the device can realize the detection of the lithium battery 21 during operation, which is beneficial to improving the detection efficiency.

[0045] In certain preferred embodiments, the control system further comprises the following operations:

[0046] In the control system, the distances between the upper and lower detection plates 19 and the upper surfaces of the corresponding transport plates 12 of each layer are set to be a, and the qualified thickness range of the lithium battery 21 is between e and f. The digital display 20 is provided with upper and lower display screens and a speaker. When the output end of the screw 18 is fully retracted, the upper detection plate 19 is close to the crossbeam 17, and the lower detection plate 19 is close to the upper fixed plate 3. The value detected by the distance sensor 171 is 0. When the lithium battery 21 is transmitted to the bottom of the detection plate 19, the output end of the screw 18 is extended to drive the detection plate 19 to move downward until it is close to the upper surface of the lithium battery 21. At this time, the data detected by the upper distance sensor 171 is b, and the data detected by the lower distance sensor 171 is c. The control system calculates that the thickness of the upper lithium battery 21 is d=ab, and the thickness of the lower lithium battery 21 is g=ac. At this time, the upper and lower display screens of the digital display 20 display values ​​d and g respectively. When at least one of d and g is not within the range of e to f, the control speaker is controlled to sound an alarm.

[0047] The working principle of this embodiment is as follows. When the device is turned on, the two transport plates 12 are respectively located on the front support plate 1 and the rear support plate 2, and when the front support plate 1 and the rear support plate 2 are both located on the upper layer, the staff will place two lithium batteries 21 on the two transport plates 12, and the second pneumatic part 111 will support the rear support plate 2 to be flush with the fixed plate 3 below. The upper motor 8 rotates forward, and the lower motor 8 rotates reversely. The motor 8 drives the gear 7 to rotate through the connecting shaft 6, and the gear 7 moves relatively on the rack 10 through the engagement with the rack 10. At the same time, the connecting shaft 6 drives the clamp 5 at the other end to move accordingly, and the clamp 5 drives the transport plate 12 to move to the bottom of the detection plate 19. The four reduction motors 23 rotate forward to drive the screw 18 to rotate, so that the lifting member 191 threadedly connected to the screw 18 drives the detection plate 19 sandwiched in the middle to move downward until it is aligned with the lithium battery The top surface of the battery 21 contacts the top surface of the battery 21 for thickness detection. During the detection, the first pneumatic part 11 supports the front support plate 1 to be flush with the fixed plate 3 below, and the second pneumatic part 111 supports the rear support plate 2 to be flush with the fixed plate 3 above. After the detection, the thickness of the lithium battery 21 is calculated by the control system and displayed on the digital display 20. The four reduction motors 23 reverse until the detection plate 19 is raised to the initial position. At the same time, the upper motor 8 continues to rotate forward and the lower motor 8 continues to reverse until the transport plate 12 moves to the terminal position, that is, the power mechanism and the transport plate 12 on both sides are completely located on the rear support plate 2 and the front support plate 1 respectively. Then the first pneumatic part 11 supports the front support plate 1 to be flush with the fixed plate 3 above. The staff removes the lithium batteries 21 that have been detected on both sides, continues to place the lithium batteries 21 and repeats the above steps for thickness detection.

[0048] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0049] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thickness detection device for lithium battery production, comprising a control system and an upper and lower double-layer fixed plate (3), wherein a front support plate (1) is arranged on one side of the double-layer fixed plate (3), and a rear support plate (2) is arranged on the other side of the double-layer fixed plate (3), wherein the side views of the front support plate (1), the fixed plate (3) and the rear support plate (2) are the same and a sliding groove (4) is opened in the center, wherein a clamp (5) is arranged inside the sliding groove (4), wherein a connecting shaft (6) is penetrated on one side of the clamp (5), a gear (7) is sleeved on the connecting shaft (6), and the other end of the connecting shaft (6) is connected to a motor (8) via a coupling. , a first motor sleeve (9) is arranged on the outer side of the motor (8), a rolling shaft (91) is fixedly mounted on the bottom of the first motor sleeve (9), the clamp (5), the connecting shaft (6), the gear (7), the motor (8), the first motor sleeve (9) and the rolling shaft (91) together constitute a power mechanism, a rack (10) is meshingly connected below the gear (7), the upper end of the clamp (5) clamps a transport plate (12), another set of the power mechanisms is arranged on the other side of the transport plate (12), and the two power mechanisms are distributed in a mirror-symmetrical manner with the transport plate (12) as the center; A first pneumatic component (11) is disposed below the front support plate (1), and a second pneumatic component (111) is disposed below the rear support plate (2), and the output ends of the first pneumatic component (11) and the second pneumatic component (111) are respectively glued to the lower surfaces of the front support plate (1) and the rear support plate (2), and placement grooves (31) are provided on both sides of the center of each fixing plate (3), and a second motor sleeve (22) is welded inside each placement groove (31), and a reduction motor (23) is fixedly installed inside each second motor sleeve (22), and the output end of each reduction motor (23) is connected to a screw rod (18), and the two pairs of screw rods (18) in the upper and lower double layers pass through the inspection hole. A detection plate (19) is provided, wherein the diameter of the circular hole of the detection plate (19) is larger than the diameter of the screw rod (18), and lifting pieces (191) are provided on both upper and lower sides of the circular hole of the detection plate (19), and the lifting pieces (191) are threadedly connected to the screw rod (18), and vertical support plates (16) are fixedly provided on the outer sides of the two screw rods (18) on the upper layer, and a cross beam (17) is welded above the two vertical support plates (16), and a distance sensor (171) is embedded and installed below the cross beam (17), and the distance sensor (171) is also embedded and installed below the center of the fixing plate (3) on the upper layer, and a digital display meter (20) is fixedly provided on one side of one of the vertical support plates (16).

2. A thickness detection device for lithium battery production according to claim 1, characterized in that: The transport plate (12) is in an I-shape, and the upper parts of the front support plate (1), the fixed plate (3) and the rear support plate (2) are all provided with slots adapted thereto. The front support plate (1), the fixed plate (3) and the rear support plate (2) have the same structure when viewed from the side and their lengths are all greater than the length of the transport plate (12). The I-shape structure is installed on the slots adapted thereto, which is conducive to limiting the position of the transport plate (12) in four directions, namely, up, down, left, and right, so that the transport plate (12) can slide stably under the push of a power mechanism.

3. A thickness detection device for lithium battery production according to claim 2, characterized in that: A lithium battery (21) is placed on the transport plate (12). A pair of transverse positioning blocks (121) and a pair of longitudinal positioning blocks (122) are glued to the transport plate (12). The distance between the two transverse positioning blocks (121) is slightly greater than the length of the lithium battery (21), and the distance between the longitudinal positioning blocks (122) is slightly greater than the width of the lithium battery (21). The transverse positioning blocks (121) and the longitudinal positioning blocks (122) are used to position the lithium battery (21).

4. A thickness detection device for lithium battery production according to claim 3, characterized in that: A clamping block (51) is provided on the other side of the clamp (5), and a notch adapted to the clamping block (51) is provided on the sliding groove (4). When the clamp (5) slides, the clamping block (51) always slides in the notch, thereby ensuring the stability of the sliding of the clamp (5).

5. A thickness detection device for lithium battery production according to claim 4, characterized in that: One side of the sliding groove (4) is provided with two grooves arranged in a gradient, namely groove one (41) and groove two (42); the first motor sleeve (9) is arranged inside the groove one (41), and the rolling shaft (91) is rollingly connected to the groove one (41); the gear (7) and the rack (10) are arranged inside the groove two (42), and the lower surface of the rack (10) is glued to the groove two (42).

6. A thickness detection device for lithium battery production according to claim 5, characterized in that: A first side support frame (13) is arranged on the outer side of the front support plate (1), and a second side support frame (132) is arranged on the outer side of the rear support plate (2). Two sliding shafts (131) are welded on the inner sides of the first side support frame (13) and the second side support frame (132). Notches matching the sliding shafts (131) are provided on the front support plate (1) and the rear support plate (2). The sliding shafts (131) and the notches are slidably connected to each other and are used to limit the position of the front support plate (1) and the rear support plate (2). The lower ends of the first pneumatic component (11) and the second pneumatic component (111) are fixedly mounted on the bottom surfaces of the first side support frame (13) and the second side support frame (132), respectively.

7. A thickness detection device for lithium battery production according to claim 6, characterized in that: Two first connecting frames (15) are welded to the front and rear sides of the two fixing plates (3) on the front and rear surfaces, and supporting legs (14) are welded to both ends of the first connecting frames (15). Two second connecting frames (151) are welded between the first side supporting frames (13) on the front and rear surfaces and the supporting legs (14) on one side, and a second connecting frame (151) is also welded between the second side supporting frame (132) and the supporting legs (14) on the other side. Auxiliary supporting plates (133) are welded to both sides below the fixing plates (3) between the first side supporting frames (13) and the second side supporting frames (132).

8. A thickness detection device for lithium battery production according to claim 7, characterized in that: The electric motor (8), the reduction motor (23), the first pneumatic part (11), the second pneumatic part (111), the screw rod (18), the distance sensor (171) and the digital display (20) are all electrically connected to the control system.

9. A thickness detection device for lithium battery production according to claim 8, characterized in that: The control system also includes the following operations: The two transport plates (12) are respectively located on the front support plate (1) and the rear support plate (2), and when the front support plate (1) and the rear support plate (2) are both located on the upper layer, after the staff has placed the two lithium batteries (21) on the two transport plates (12), the control system controls the second pneumatic member (111) to support the rear support plate (2) to be flush with the fixing plate (3) below, the two motors (8) on the upper layer rotate forward, and the two motors (8) on the lower layer rotate reversely, and the transport plates (12) are driven to move to the bottom of the detection plate (19) by sliding on the rack (10) through the power mechanism, and the upper and lower groups of motors (8) are controlled to stop rotating at the same time, and then the four reduction motors (23) are controlled to rotate forward to drive the screw (18) to rotate, so that the lifting member ( 191) drives the inspection plate (19) sandwiched in the middle to move downward until it contacts the top surface of the lithium battery (21) for thickness detection, and at the same time controls the first pneumatic part (11) to support the front support plate (1) to be flush with the fixed plate (3) below, and the second pneumatic part (111) to support the rear support plate (2) to be flush with the fixed plate (3) above. After the detection is completed, the four reduction motors (23) are reversed until the inspection plate (19) rises to the initial position, and then the motor (8) is controlled to continue to rotate until the two transport plates (12) are respectively located on the rear support plate (2) and the front support plate (1), and the first pneumatic part (11) is controlled to support the front support plate (1) to be flush with the fixed plate (3) above, to the initial position, and the staff removes the lithium battery (21) after the detection.

10. A thickness detection device for lithium battery production according to claim 9, characterized in that: The control system also includes the following operations: In the control system, the distance between the upper and lower detection plates (19) and the upper surface of the corresponding transport plate (12) of each layer is set to a, the qualified thickness range of the lithium battery (21) is between e and f, the digital display (20) is provided with upper and lower display screens and a speaker, when the output end of the screw (18) is fully retracted, the upper detection plate (19) is close to the crossbeam (17), the lower detection plate (19) is close to the upper fixed plate (3), the value detected by the distance sensor (171) is 0, and when the lithium battery (21) is transported to the detection plate (19 ), the output end of the screw rod (18) extends to drive the detection plate (19) to move downward until it is in close contact with the upper surface of the lithium battery (21). At this time, the data detected by the upper distance sensor (171) is c, and the data detected by the lower distance sensor (171) is g. The control system calculates that the thickness of the upper lithium battery (21) is d=ab, and the thickness of the lower lithium battery (21) is g=ac. At this time, the upper and lower display screens of the digital display (20) display the values ​​d and g respectively. When at least one of d and g is not within the range of e to f, the speaker is controlled to sound an alarm.

Images