A method for improving positioning accuracy of a liquid injection assembly machine

Abstract

The application discloses a method for improving positioning accuracy of a liquid injection assembly machine. The energy storage device on the loading fixture is positioned and clamped and fixed directly below the liquid injection device. By adjusting the position of positioning and clamping and fixing, the loading fixture can be accurately clamped and stopped at the clamped position. Then, the energy storage device directly below the liquid injection device is injected with liquid to avoid errors between the position of the energy storage device and the position of the liquid injection device, improve the alignment accuracy of the energy storage device on the loading fixture and the liquid injection device, avoid the liquid injection needle of the liquid injection device from being unable to align with the energy storage device, and avoid the liquid injection needle from injecting liquid into the energy storage device. In this way, resource waste is avoided, and the energy storage device without liquid injection is prevented from flowing into the next link to avoid the production of defective products. In this way, the defective rate of the energy storage device is further reduced, and the production and manufacturing cost of the energy storage device is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage device assembly positioning method, more particularly, to a method for improving the positioning accuracy of a liquid injection assembly machine. BACKGROUND

[0002] The conventional energy storage device ring feeding mechanism usually adopts a driving device to drive the rotation of a transmission device, the transmission device is fixed with a carrier, and an injection device is arranged above the transmission device, and the energy storage device on the carrier is injected by the transmission device. When injecting, the driving device stops driving the transmission device; when the injection is completed, the driving device continues to drive the transmission device to rotate, so that the next energy storage device enters the lower part of the injection device and continues to be injected. This injection method has high requirements for the transmission accuracy of the driving device, and usually needs to cooperate with a high-precision sensor below the injection device, and when the sensor detects that there is an energy storage device below the injection device, it sends a command to the driving device to stop driving. However, due to the error of the sensor and the delay of the sensor sending the command to the driving device, there is a certain error between the position of the energy storage device and the injection device when the driving device stops driving. For large-sized energy storage devices, these precision influences are low. However, for small-sized energy storage devices, these errors will directly cause the injection needle of the injection device to be unable to align with the energy storage device, so that the liquid injection needle of the injection device is injected to the outside of the energy storage device, causing resource waste; and the energy storage devices without liquid injection flow into the next link, which will also produce defective products, further increasing the defective rate of the energy storage devices, and greatly increasing the production and manufacturing cost of the energy storage devices, thereby reducing the product competitiveness of the energy storage devices, and failing to meet the increasing quality requirements of enterprises. SUMMARY

[0003] The technical problem to be solved by the present application is how to improve the alignment accuracy of the energy storage device on the loading fixture and the liquid injection device.

[0004] The technical problem to be solved by the present application is solved by the following technical solution:

[0005] To solve the above technical problem, the present application provides a method for improving the positioning accuracy of a liquid injection assembly machine, which comprises the following steps:

[0006] Step 1: provide a ring-shaped transmission device and a plurality of loading fixtures sequentially arranged on the ring-shaped transmission device, and fix all the loading fixtures on the ring-shaped transmission device, drive the ring-shaped transmission device at a constant speed by a first driving device to transmit the loading fixtures and make the first energy storage device on the loading fixture pass under the liquid injection device;

[0007] Step 2: position and fix the loading fixture when the energy storage device on the loading fixture is located directly below the liquid injection device;

[0008] Step 3: inject liquid into the energy storage device that stays directly below the liquid injection device;

[0009] Step 4: release the positioning and fixing of the loading fixture after the liquid injection device finishes injecting liquid, and continue to drive the ring-shaped transmission device to make the next energy storage device on the loading fixture pass under the liquid injection device;

[0010] Step 5: repeat steps 2 to 4 until the liquid injection of all energy storage devices on the loading fixture is completed.

[0011] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine provided by the present application, in step 2, when the energy storage device on the loading fixture is located directly below the liquid injection device, the loading fixture is positioned and fixed, and at the same time, the driving of the ring-shaped transmission device is stopped.

[0012] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, the method further comprises the following steps: step 6, continuously driving the annular transmission device to transmit the loading fixture and make the first energy storage device on the next loading fixture pass directly below the liquid injection device; and step 7, repeating the above steps 2 to 6.

[0013] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, in the step 1, an annular transmission device, a rigid annular guide rail arranged at equal intervals around the annular transmission device, and a plurality of loading fixtures sequentially arranged on the annular transmission device are provided, one end of all the loading fixtures is fixed on the annular transmission device, the other end of all the loading fixtures is slidably arranged on the rigid annular guide rail, and the annular transmission device is uniformly driven by the first driving device to transmit the loading fixture and make the first energy storage device on the loading fixture pass directly below the liquid injection device.

[0014] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, the loading fixture comprises a sliding seat and a carrier, one end of the sliding seat is fixed on the annular transmission device, the other end of the sliding seat is provided with at least two rollers, the two rollers are respectively close to the upper and lower sides of the annular guide rail, and the carrier is fixed on the sliding seat.

[0015] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, a clamping seat is fixed on each sliding seat, a plurality of recesses are arranged on the lower surface of the clamping seat, the plurality of recesses are sequentially arranged in a zigzag shape, a first positioning assembly is fixed in the annular region of the annular transmission device, and the first positioning assembly is used to intermittently clamp the plurality of recesses.

[0016] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, the recesses are rectangular.

[0017] As a preferred embodiment of the method for improving the positioning accuracy of the liquid injection assembly machine, the first positioning assembly comprises a driving motor and a stop block connected with the driving motor.

[0018] As a preferred implementation form of the method for improving positioning accuracy of the liquid injection assembly machine, the first positioning assembly comprises a track plate, a second driving device and a clamping block, the second driving device can drive the track plate to reciprocate left and right, at least one inclined sliding groove is arranged on the track plate, the number of the clamping blocks corresponds to the number of the inclined sliding grooves, first and second follow-up bearings are fixed at two ends of the clamping block, the first follow-up bearing is sleeved in the inclined sliding groove, and the second follow-up bearing can abut against the groove.

[0019] As a preferred implementation form of the method for improving positioning accuracy of the liquid injection assembly machine provided by the application, the second driving device is connected with a cylindrical gear, and a rack is fixed to the track plate at the cylindrical gear.

[0020] The application has the following beneficial effects:

[0021] When the energy storage device on the loading fixture is positioned and clamped and fixed directly below the liquid injection device, the position of positioning and clamping and fixing is adjusted, so that the loading fixture is accurately clamped and stays at the clamped position, and then the energy storage device staying directly below the liquid injection device is injected with liquid, so as to avoid errors between the staying position of the energy storage device and the position of the liquid injection device, improve the alignment accuracy of the energy storage device on the loading fixture and the liquid injection device, avoid the liquid injection needle of the liquid injection device from being unable to align with the energy storage device and the liquid injection needle from injecting liquid to the outside of the energy storage device, and further avoid waste of resources; the energy storage device without liquid injection is also prevented from flowing into the next link to avoid generation of defective products, and the defective rate of the energy storage device is further reduced, the production and manufacturing cost of the energy storage device is greatly reduced, and the product competitiveness of the energy storage device is improved, so as to meet the increasing quality requirements of enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the scheme in the application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 A structural schematic diagram of the liquid injection assembly machine provided by the application.

[0024] Figure 2 A structural schematic diagram of the liquid injection assembly machine provided by the application. Figure 1 A structural schematic diagram of the liquid injection assembly machine provided by the application.

[0025] Figure 3 A structural schematic diagram of the liquid injection assembly machine provided by the application. Figure 2 An enlarged view of A in FIG. 6. An enlarged view of A in FIG. 6.

[0026] Figure 4 Figure 6 is a rear view of the energy storage device, the liquid injection device and the first driving device. Figure 2 Figure 7 is a rear view of the energy storage device, the liquid injection device and the first driving device.

[0027] Figure 5 Figure 8 is a rear view of the energy storage device, the liquid injection device and the first driving device. Figure 4 Figure 9 is an enlarged view of B in figure 8.

[0028] Figure 6 Figure 10 is a structural schematic view of another angle of figure 8. Figure 4 Figure 11 is a structural schematic view of another angle of figure 8. Figure 12 is a structural schematic view of another angle of figure 8.

[0029] Figure 13 is a structural schematic view of another angle of figure 8. Figure 7 DETAILED DESCRIPTION Figure 6 In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] The present application provides a method for improving the positioning accuracy of a liquid injection assembly machine, which comprises the following steps:

[0031] Step 1: providing a ring-shaped transmission device and a plurality of loading jigs sequentially arranged on the ring-shaped transmission device, and fixing all the loading jigs on the ring-shaped transmission device, driving the ring-shaped transmission device at a constant speed by a first driving device to transmit the loading jigs and make the first energy storage device on the loading jigs pass directly below a liquid injection device;

[0032] Step 2: positioning and clamping the loading jigs when the energy storage devices on the loading jigs are located directly below the liquid injection device;

[0033] Step 3: injecting liquid to the energy storage devices which stay directly below the liquid injection device;

[0034] Step 4: releasing the positioning and fixing of the loading jigs when the liquid injection of the liquid injection device is completed, and continuing to drive the ring-shaped transmission device to make the next energy storage device on the loading jigs pass directly below the liquid injection device;

[0035] Step 5: repeating the above steps 2 to 4 until the liquid injection of the energy storage devices on the whole loading jigs is completed.

[0036] Step 5: repeating the above steps 2 to 4 until the liquid injection of the energy storage devices on the whole loading jigs is completed.

[0037] The energy storage device on the loading fixture is positioned and clamped by adjusting the position of the positioning and clamping, so that the loading fixture can be accurately clamped and stopped at the clamped position, and then the energy storage device under the liquid injection device is injected with liquid, so as to avoid the error between the position of the energy storage device and the position of the liquid injection device, improve the alignment accuracy of the energy storage device on the loading fixture and the liquid injection device, and avoid the liquid injection needle of the liquid injection device from being unable to align with the energy storage device, so that the liquid injection needle of the liquid injection device is injected into the energy storage device. In this way, the waste of resources can be avoided, and the energy storage device without liquid injection can not flow into the next link to avoid the production of defective products, thereby further reducing the defective rate of the energy storage device, reducing the production and manufacturing cost of the energy storage device, improving the product competitiveness of the energy storage device, and meeting the increasing quality requirements of enterprises.

[0038] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. The present application will be described in detail below in conjunction with the accompanying drawings and embodiments, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0039] Embodiment 1

[0040] Please refer to Figures 1 to 3The application provides an injection assembly machine, which comprises a first driving device 1, an annular transmission device 2 and a plurality of loading jigs 3, an injection device 4 is arranged above the annular transmission device 2, the first driving device 1 is used for driving the annular transmission device 2 to rotate, the plurality of loading jigs 3 are sequentially fixed on the annular transmission device 2, the loading jig 3 comprises a sliding seat 31 fixed on the annular transmission device 2 and a carrier 32 fixed on the sliding seat 31, a clamping seat 33 is fixed on each sliding seat 31, a plurality of grooves 34 are arranged on the lower surface of the clamping seat 33 in a zigzag manner, a first positioning assembly 5 is fixed in the annular region of the annular transmission device 2, and the first positioning assembly 5 is used for intermittently clamping the grooves 34. When the first groove 34 under the clamping seat 33 passes through the first positioning assembly 5, the first positioning assembly 5 extends into the first groove 34, so that the loading jig 3 is positioned and clamped, the positioning precision depends on the matching precision of the first positioning assembly 5 and the groove 34, and the positioning position depends on the setting position of the first positioning assembly 5. The relative position between the first positioning assembly 5 and the injection device 4 is adjusted to adjust the alignment precision between the energy storage device on the loading jig 3 and the injection device 4, so that the injection needle of the injection device 4 cannot be aligned with the energy storage device, the liquid in the injection needle is injected to the outer edge of the energy storage device, and then the waste of resources is avoided. In addition, the energy storage device without liquid injection cannot flow into the next link, so that the defective product is avoided, the defective rate of the energy storage device is further reduced, the production and manufacturing cost of the energy storage device is greatly reduced, the product competitiveness of the energy storage device is improved, and the increasing quality requirements of enterprises are met.

[0041] As a preferred embodiment of the application, the groove 34 is in a rectangular shape. When the first positioning assembly 5 clamps the groove 34, the first positioning assembly 5 cannot move, so that the energy storage device being assembled cannot move, the alignment precision and stability of the energy storage device and the injection device 4 are improved, the generation of defective products is avoided, and the competitiveness of the product energy storage device is improved.

[0042] As a preferred embodiment of the application, the first positioning assembly 5 comprises a driving motor and a stopper connected with the driving motor. The driving motor drives the stopper to move upwards, so that the groove 34 on the clamping seat 33 is clamped, and the alignment and fixation of the energy storage device and the injection device 4 are realized. When the driving motor drives the stopper to move downwards, the groove 34 on the clamping seat 33 is released, so that the loading jig 3 can continue to move until the stopper clamps the next groove 34.

[0043] Example 2

[0044] Please refer to Figures 1 to 7As a further optimization of embodiment 1, in the present embodiment, the first positioning assembly 5 comprises a track plate 51, a second driving device 52 and a clamping block 53, the second driving device 52 can drive the track plate 51 to reciprocate left and right, at least one inclined sliding groove 54 is arranged on the track plate 51, the number of the clamping block 53 corresponds to the number of the inclined sliding groove 54, the two ends of the clamping block 53 are fixed with a first follow-up bearing 55 and a second follow-up bearing 56, the first follow-up bearing 55 is sleeved in the inclined sliding groove 54, and the second follow-up bearing 56 can abut against the groove 34. The track plate 51 is driven by the second driving device 52 to reciprocate left and right, so that the clamping block 53 on the inclined sliding groove 54 can move up and down under the action of the first follow-up bearing 55, so that the clamping block 53 can clamp the groove 3471 or not clamp the groove 34, and the positioning and movement of the carrier 32 are realized, so as to further improve the feeding accuracy, thereby avoiding the generation of defective products and improving the competitiveness of the product energy storage device.

[0045] As a preferred embodiment provided by the present application, the second driving device 52 is connected with a cylindrical gear 57, and the track plate 51 is fixed with a rack 58 at the cylindrical gear 57. The rack 58 is driven to move by the cylindrical gear 57, and the track plate 51 is pulled to move left and right, so as to realize the positioning and movement of the carrier 32, further improve the feeding accuracy, thereby avoiding the generation of defective products and improving the competitiveness of the product energy storage device.

[0046] As a preferred embodiment provided by the present application, in step 2, when the energy storage devices on the loading fixture 3 are located directly below the liquid injection device 4, the loading fixture 3 is positioned and clamped and fixed, and the driving of the annular transmission device 2 is stopped at the same time. At this time, the liquid injection device 4 injects liquid into the energy storage devices, and the driving of the annular transmission device 2 is stopped to avoid the loading fixture 3 continuing to be stressed, to avoid affecting the injection effect, and to avoid the first driving device 1 slipping at this time, thereby improving the service life of the first driving device 1.

[0047] As a preferred embodiment provided by the present application, it further comprises steps 6 and 7: continuing to drive the annular transmission device 2 to transmit the loading fixture 3 and make the first energy storage device on the next loading fixture 3 pass through the position directly below the liquid injection device 4; and repeating steps 2 to 6. Thus, the energy storage devices on each loading fixture 3 can be injected.

[0048] As a preferred embodiment provided by the present application, in step 1, a ring-shaped transmission device 2, a rigid ring-shaped guide rail 6 arranged on the ring-shaped transmission device 2 at equal intervals, and a plurality of loading jigs 3 sequentially arranged on the ring-shaped transmission device 2 are provided, and one end of all the loading jigs 3 is fixed on the ring-shaped transmission device 2, and the other end of all the loading jigs 3 is slidably arranged on the rigid ring-shaped guide rail 6, the ring-shaped transmission device 2 is uniformly driven by the first driving device 1 to transmit the loading jigs 3 and make the first energy storage device on the loading jig 3 pass directly below the liquid injection device 4. The loading jig 3 can slide on the rigid ring-shaped guide rail 6, and the movement track of the loading jig 3 is limited on the rigid ring-shaped guide rail 6, and the deformation amount of the rigid ring-shaped guide rail 6 is relatively low, which can be basically ignored, so that the movement track of the carrier 32 is basically the same as the shape of the rigid ring-shaped guide rail 6, and even if the ring-shaped transmission device 2 has a certain deformation, the movement track of the carrier 32 will not be affected, thereby avoiding errors of the carrier 32 in the transmission process.

[0049] Embodiment 3

[0050] Please refer to Figures 1 to 3 As a further optimization scheme of embodiment 1, in the embodiment, the ring-shaped transmission device 2 is arranged with the rigid ring-shaped guide rail 6 at equal intervals, the loading jig 3 comprises a sliding seat 31 and a carrier 32, one end of the sliding seat 31 is fixed on the ring-shaped transmission device 2, the other end of the sliding seat 31 is provided with at least two rollers 35, the two rollers 35 are respectively close to the upper and lower sides of the ring-shaped guide rail, and the carrier 32 is fixed on the sliding seat 31. The sliding seat 31 can slide on the rigid ring-shaped guide rail 6, the movement track of the sliding seat 31 is limited on the rigid ring-shaped guide rail 6, the carrier 32 is fixed on the sliding seat 31, and the movement track of the carrier 32 is also limited on the rigid ring-shaped guide rail 6, the deformation amount of the rigid ring-shaped guide rail 6 is relatively low, which can be basically ignored, so that the movement track of the carrier 32 is basically the same as the shape of the rigid ring-shaped guide rail 6, and even if the ring-shaped transmission device 2 has a certain deformation, the movement track of the carrier 32 will not be affected, thereby avoiding errors of the carrier 32 in the transmission process.

[0051] In the present application, unless otherwise clearly specified and limited, the terms such as "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, or electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] Obviously, the above-described embodiments are only some embodiments but not all embodiments of the present application, the preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent replacements to some technical features therein. Any equivalent structure made by using the content of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of the patent protection of the present application.

Claims

1. A method for improving the positioning accuracy of a liquid injection assembly machine, characterized in that, It includes the following steps: Step 1: Provide a ring-shaped transmission device and a plurality of loading fixtures arranged sequentially on the ring-shaped transmission device, and fix all the loading fixtures on the ring-shaped transmission device. Drive the ring-shaped transmission device at a constant speed through the first driving device to transmit the loading fixtures and make the first energy storage device on the loading fixture pass directly below the liquid injection device. Step 2: Position and lock the loading fixture in place when the energy storage device on the loading fixture is directly below the liquid injection device; Step 3: Inject liquid into the energy storage device located directly below the injection device; Step 4: After the injection device completes the injection, release the positioning and fixing of the loading fixture, and continue to drive the ring transmission device so that the next energy storage device on the loading fixture passes directly below the injection device. Step 5: Repeat steps 2 to 4 above until the energy storage devices on the entire loading fixture are fully injected with liquid; In step 1, a ring-shaped transmission device, a rigid ring-shaped guide rail equally spaced around the ring-shaped transmission device, and multiple loading fixtures sequentially arranged on the ring-shaped transmission device are provided. One end of each loading fixture is fixed to the ring-shaped transmission device, and the other end of each loading fixture is slidably mounted on the rigid ring-shaped guide rail. A first driving device drives the ring-shaped transmission device at a constant speed to transport the loading fixtures, ensuring that the first energy storage device on each loading fixture passes directly below the liquid injection device. Each loading fixture includes a slide and a carrier. One end of the slide is fixed to the ring-shaped transmission device, and the other end of the slide is provided with at least two rollers, which are respectively in close contact with the upper and lower parts of the ring-shaped guide rail. The carrier is fixed to the slide, and each slide has a mounting bracket. The lower surface of the card holder has multiple grooves arranged sequentially to form a serrated shape. A first positioning component is fixed within the annular area of ​​the annular transmission device. The first positioning component is used to intermittently engage multiple grooves. The first positioning component includes a track plate, a second driving device, and a locking block. The second driving device can drive the track plate to reciprocate left and right. The track plate has at least one inclined sliding groove. The number of locking blocks corresponds to the number of inclined sliding grooves. A first follower bearing and a second follower bearing are fixed at both ends of the locking block. The first follower bearing is sleeved in the inclined sliding groove, and the second follower bearing can abut against the groove. The second driving device is connected to a cylindrical gear, and a rack is fixed to the track plate at the cylindrical gear.

2. The method for improving the positioning accuracy of a liquid injection assembly machine according to claim 1, characterized in that, In step 2, when the energy storage device on the loading fixture is located directly below the liquid injection device, the loading fixture is positioned and locked in place, and the driving of the ring transmission device is stopped.

3. The method for improving the positioning accuracy of a liquid injection assembly machine according to claim 1, characterized in that, It also includes step 6: continue driving the ring transmission device to transmit the loading fixture and so that the first energy storage device on the next loading fixture passes directly below the liquid injection device; step 7: repeat steps 2 to 6 above.

4. The method for improving the positioning accuracy of a liquid injection assembly machine according to claim 1, characterized in that, The groove is rectangular in shape.

5. The method for improving the positioning accuracy of a liquid injection assembly machine according to claim 1, characterized in that, The first positioning component includes a drive motor and a stop connected to the drive motor.

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