Eccentric liquid injection hole calibration tool and jig mechanism

Abstract

The utility model discloses an eccentric liquid injection hole calibration tool and jig mechanism, the eccentric liquid injection hole calibration tool comprises a calibration seat, a calibration mounting plate and a calibration rod, one end of the calibration seat is arranged on one side of the calibration mounting plate, the other end of the calibration seat is provided with a through hole penetrating through the top end and the bottom end of the calibration seat, and the calibration rod is arranged in the through hole. The calibration rod penetrates through the through hole, the calibration rod can move up and down and rotate relative to the calibration seat, the bottom end of the calibration rod is located below the calibration seat and forms a calibration head, the outer diameter of the calibration head is smaller than that of the calibration rod, the top end of the calibration rod is located above the calibration seat, and the top end of the calibration rod is located above the calibration seat. The top end of the calibration base is provided with a supporting plate, the supporting plate is located between the through hole and the calibration mounting plate, the peripheral face of the calibration rod is vertically provided with a limiting rod, and the limiting rod is placed at the top end of the supporting plate. According to the utility model, the nailing work can be ensured to be smoothly carried out.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to an eccentric liquid injection hole calibration tooling and fixture mechanism. Background Technology

[0002] For aluminum-cased cylindrical batteries produced during the experimental stage, after secondary electrolyte filling, it is usually necessary to apply a sealant nail to the electrolyte filling hole at the center of the top of the aluminum casing. Currently, a helium recirculation nailing test machine is commonly used to apply the sealant nail to the electrolyte filling hole of the cylindrical battery using a helium recirculation nailing process. Specifically, the cylindrical battery is first placed in the battery fixture of the jig mechanism of the helium recirculation nailing test machine. Then, the pre-pressing nail suction mechanism of the helium recirculation nailing test machine picks up the sealant nail and pre-presses part of the sealant nail into the electrolyte filling hole of the cylindrical battery. Then, the helium recirculation nailing mechanism of the helium recirculation nailing test machine uses the recessed groove on the outer wall of the sealant nail and the electrolyte filling hole of the cylindrical battery to perform vacuuming and helium recirculation inside the cylindrical battery. After helium recirculation, the part of the sealant nail located outside the electrolyte filling hole of the cylindrical battery is completely pressed into the electrolyte filling hole of the cylindrical battery. This completes the application of sealant nails to the electrolyte filling hole of the cylindrical battery. When the electrolyte filling hole of a cylindrical battery is eccentric, after placing the cylindrical battery into the battery fixture of the helium return nailing test machine, the battery is typically rotated manually first to align the position of the eccentric electrolyte filling hole with the positions of the pre-pressing nail suction mechanism and the helium return nailing mechanism. Then, the position of the eccentric electrolyte filling hole is manually checked, for example by visual inspection, to ensure its accuracy. The pre-pressing nail suction mechanism and the helium return nailing mechanism are then moved above the eccentric electrolyte filling hole to perform their respective operations. However, because manually checking the position of the eccentric electrolyte filling hole is prone to error, it is often impossible to guarantee its accuracy. This prevents the pre-pressing nail suction mechanism and the helium return nailing mechanism from successfully applying the sealant nails to the eccentric electrolyte filling hole, thus hindering the smooth progress of the nailing process. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides an eccentric liquid injection hole calibration fixture and jig mechanism, which can ensure that the position of the eccentric liquid injection hole of the cylindrical battery is accurate and ensure the smooth progress of the nailing work.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] The first aspect of this utility model provides an eccentric injection hole calibration fixture, including a calibration seat, a calibration mounting plate, and a calibration rod. One end of the calibration seat is disposed on one side of the calibration mounting plate, and the other end of the calibration seat has a through hole penetrating the top and bottom ends of the calibration seat. The calibration rod is disposed through the through hole and can move up and down and rotate relative to the calibration seat. The bottom end of the calibration rod is located below the calibration seat and forms a calibration head. The outer diameter of the calibration head is smaller than the outer diameter of the calibration rod. The top end of the calibration rod is located above the calibration seat. The top end of the calibration seat is provided with a support plate, which is located between the through hole and the calibration mounting plate. A limit rod is vertically disposed on the outer circumferential surface of the calibration rod, and the limit rod rests on the top end of the support plate.

[0006] As a preferred technical solution, the bottom end of the calibration base is provided with a tooling linear bearing corresponding to the through hole, the tooling linear bearing is sleeved on the outer periphery of the calibration rod, and the bottom end of the calibration rod is located below the tooling linear bearing.

[0007] As a preferred technical solution, the top of the support plate is provided with a groove, and the limiting rod rests on the bottom of the groove.

[0008] As a preferred technical solution, the outer peripheral surface of the calibration rod is provided with a first mounting hole that penetrates radially, and the end of the limiting rod near the calibration rod is provided with a second mounting hole corresponding to the first mounting hole. Fasteners are installed in the first mounting hole and the second mounting hole.

[0009] As a preferred technical solution, the bottom end of the calibration rod has a transition portion, which is in the shape of an inverted frustum cone, and the end of the transition portion away from the calibration rod has the calibration head.

[0010] As a preferred technical solution, the support plate and the calibration mounting plate are connected by a rib plate, which is disposed at the top of the calibration base.

[0011] The second aspect of this utility model provides a fixture mechanism, including a battery fixture, and further including the eccentric injection hole calibration fixture described in the above technical solution, wherein the eccentric injection hole calibration fixture is located above the battery fixture.

[0012] As a preferred technical solution, the battery fixture includes a fixture base plate, a fixture mounting component, a placement platform, and a clamp. A fixture mounting plate is provided at the top of the machine base. The fixture base plate is located at the top of the fixture mounting plate, and the fixture mounting component is located at the top of the fixture base plate. A V-groove is provided on the side of the fixture mounting component near the drive mechanism. The placement platform is located at the top of the fixture base plate and behind the fixture mounting component, with a portion of the placement platform extending into the V-groove. The clamp includes a pulling block, a positioning block, and two pull rods. The pulling block and the positioning block are arranged opposite each other. The fixture mounting component is located at the top of the machine base. Between the pulling block and the positioning block, two pull rods are respectively disposed through two through holes of the fixture mounting component. One end of each pull rod is connected to the pulling block, and the other end of each pull rod is connected to the positioning block. The V-groove is located between the two pull rods. A fixture linear bearing is provided in the through hole. The fixture linear bearing is sleeved on the outer circumference of the corresponding pull rod. A fixture elastic element is provided between the fixture linear bearing and the pulling block. The fixture elastic element is circumferentially disposed on the outer circumference of the corresponding pull rod. One end of the fixture elastic element is connected to the pulling block, and the other end of the fixture elastic element is connected to the fixture linear bearing.

[0013] The beneficial effects of this utility model are as follows: The eccentric injection hole calibration fixture of this utility model, through the setting of calibration seat, calibration mounting plate and calibration rod, when the injection hole of the cylindrical battery is an eccentric injection hole, the position of the eccentric injection hole is checked by the eccentric injection hole calibration fixture. The calibration accuracy is high, which can ensure that the position of the eccentric injection hole of the cylindrical battery is accurate. This allows the pre-compression nail suction mechanism and the helium return nailing mechanism of the helium return nailing test machine to smoothly perform the sealing nailing operation on the eccentric injection hole of the cylindrical battery, ensuring the smooth progress of the nailing work. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of a jig mechanism and a linear module provided in an embodiment of this utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the first angle of the eccentric injection hole calibration fixture of the jig mechanism shown;

[0017] Figure 3 yes Figure 2 A schematic diagram of the second angle of the eccentric injection hole calibration fixture shown.

[0018] Figure 4 yes Figure 1 A schematic diagram of the battery fixture of the fixture mechanism shown at the first angle;

[0019] Figure 5 yes Figure 4 A schematic diagram of the battery fixture from a second angle;

[0020] Figure 6 yes Figure 4 The diagram shows the structure of the battery fixture and the cylindrical battery.

[0021] Figure 7 yes Figure 4 A top view of the battery fixture shown.

[0022] Figure label:

[0023] 10. Eccentric injection hole calibration fixture; 11. Calibration seat; 111. Through hole; 112. Support plate; 1121. Groove; 12. Calibration mounting plate; 13. Calibration rod; 13a. First mounting hole; 131. Calibration head; 132. Limiting rod; 133. Transition section; 14. Fixture linear bearing; 15. Rib plate;

[0024] 20. Battery fixture; 21. Fixture base plate; 23. Fixture mounting component; 231. V-groove; 2311. Groove; 24. Placement platform; 251. Pull block; 252. Positioning block; 253. Pull rod; 254. Fixture linear bearing; 255. Fixture elastic component; 2551. First connecting block; 2552. Second connecting block;

[0025] 100. Linear module; 101. Connecting plate;

[0026] 200. Cylindrical battery; 201. Eccentric injection hole. Detailed Implementation

[0027] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0028] Please refer to Figure 1An embodiment of this utility model provides a fixture mechanism, including an eccentric injection hole calibration fixture 10 and a battery fixture 20. The eccentric injection hole calibration fixture 10 is used to be mounted on the connecting plate 101 of the linear module 100 of the helium recirculation nail tester, and is located above the battery fixture 20. Both the linear module 100 and the battery fixture 20 are used to be mounted on the machine base of the helium recirculation nail tester.

[0029] Combination Figure 2 and Figure 3 As shown, the eccentric injection hole calibration fixture 10 includes a calibration seat 11, a calibration mounting plate 12, and a calibration rod 13.

[0030] One end of the calibration base 11 is located on one side of the calibration mounting plate 12, and the other end of the calibration base 11 has a through hole 111 that passes through the top and bottom ends of the calibration base 11. The calibration rod 13 is disposed through the through hole 111 and can move up and down and rotate relative to the calibration base 11. The bottom end of the calibration rod 13 is located below the calibration base 11 and forms a calibration head 131. The outer diameter of the calibration head 131 is smaller than the outer diameter of the calibration rod 13. The outer diameter of the calibration head 131 is adapted to the inner diameter of the eccentric liquid injection hole 201 of the cylindrical battery 200. The calibration head 131 is used for insertion and mating with the eccentric liquid injection hole 201 of the cylindrical battery 200. The top of the calibration rod 13 is located above the calibration seat 11. The top of the calibration seat 11 is provided with a support plate 112, which is located between the through hole 111 and the calibration mounting plate 12. A limit rod 132 is vertically provided on the outer circumferential surface of the calibration rod 13 near the top of the calibration rod 13. The limit rod 132 rests on the top of the support plate 112, thereby supporting the limit rod 132. In practical applications, the calibration mounting plate 12 is set on the connecting plate 101 of the linear module 100. The bottom end of the calibration mounting plate 12 is flush with the bottom end of the connecting plate 101, and the bottom end of the calibration seat 11 is flush with the bottom end of the calibration mounting plate 12. The linear module 100 can drive the calibration mounting plate 12 to move left and right. The left and right movement of the calibration mounting plate 12 can drive the calibration seat 11 to move synchronously, which in turn can drive the calibration rod 13, the support plate 112, the calibration head 131, and the limit rod 132 to move synchronously. The linear module 100 drives the eccentric injection hole calibration fixture 10 to move left and right, so that the calibration head 131 of the eccentric injection hole calibration fixture 10 can be positioned above the eccentric injection hole 201 of the cylindrical battery 200.

[0031] The support plate 112 and the calibration mounting plate 12 are connected by a rib 15, which is located at the top of the calibration base 11. The rib 15 supports the support plate 112 and prevents it from deforming. The movement of the calibration base 11 can cause the rib 15 to move synchronously.

[0032] The bottom end of the calibration base 11 is provided with a tooling linear bearing 14 corresponding to the through hole 111. The tooling linear bearing 14 is sleeved on the outer periphery of the calibration rod 13, and the bottom end of the calibration rod 13 is located below the tooling linear bearing 14. The movement of the calibration base 11 can drive the tooling linear bearing 14 to move synchronously.

[0033] The top of the support plate 112 is provided with a groove 1121, and the limiting rod 132 rests on the bottom of the groove 1121. In this embodiment, the bottom of the groove 1121 is arc-shaped, and the bottom of the groove 1121 matches the outer peripheral surface of the limiting rod 132.

[0034] The bottom end of the calibration rod 13 has a transition portion 133, which is shaped like an inverted frustum of a cone. The end of the transition portion 133 away from the calibration rod 13 has the calibration head 131. During the process of inserting the calibration head 131 into the eccentric injection hole 201 of the cylindrical battery 200, the transition portion 133 reduces the impact on the cylindrical battery 200, thereby reducing damage to the cylindrical battery 200.

[0035] The outer circumferential surface of the calibration rod 13 is provided with a radially penetrating first mounting hole 13a. The end of the limiting rod 132 near the calibration rod 13 is provided with a second mounting hole corresponding to the first mounting hole 13a. Both the first mounting hole 13a and the second mounting hole are screw holes. Fasteners such as screws are installed in the first mounting hole 13a and the second mounting hole. This structure facilitates the disassembly and assembly of the limiting rod 132, thereby making it convenient to replace the limiting rod 132.

[0036] Combination Figures 4 to 7 As shown, the battery fixture 20 is used to place the cylindrical battery 200. The battery fixture 20 includes a fixture base plate 21, a T-shaped fixture mounting member 23, a placement platform 24 for placing the cylindrical battery 200, and a clamp. In practical applications, the fixture base plate 21 is set on a machine base, and a fixture mounting plate is provided at the top of the machine base. The fixture base plate 21 is located at the top of the fixture mounting plate. The fixture mounting member 23 is located at the top of the fixture base plate 21, and a V-groove 231 is provided on the side of the fixture mounting member 23 near the drive mechanism 70. The V-groove 231 is used to cooperate with the cylindrical battery 200. The placement platform 24 is located at the top of the fixture base plate 21 and behind the fixture mounting member 23. The placement platform 24 partially extends into the V-groove 231. In this embodiment, the bottom end of the V-groove 231 has a groove 2311 corresponding to the placement platform 24. The distance between the top of the placement platform 24 and the top of the fixture mounting member 23 is less than the height of the cylindrical battery 200.

[0037] The fixture includes a pulling block 251, a positioning block 252, and two pull rods 253. The pulling block 251 and positioning block 252 are arranged opposite each other, both inclined upwards relative to the fixture mounting member 23. The fixture mounting member 23 is located between the pulling block 251 and the positioning block 252. The two pull rods 253 are spaced apart, with the right pull rod 253 positioned above the left pull rod 253. Each pull rod 253 passes through two through holes in the fixture mounting member 23. One end of each pull rod 253 is connected to the pulling block 251, and the other end is connected to the positioning block 252. A V-groove 231 is located between the two pull rods 253. A linear bearing 254 is installed inside the through hole. The linear bearing 254 is sleeved on the outer circumference of the corresponding pull rod 253. A fixture elastic element 255 is provided between the linear bearing 254 and the pull block 251. The fixture elastic element 255 is arranged around the outer circumference of the corresponding pull rod 253. One end of the fixture elastic element 255 is connected to the pull block 251, and the other end is connected to the linear bearing 254. The fixture elastic element 255 is a compression spring.

[0038] In this embodiment, one end of the elastic element 255 of the fixture is provided with a first connecting block 2551, and the other end is provided with a second connecting block 2552. The first connecting block 2551 is connected to the pulling block 251, and the second connecting block 2552 is connected to the linear bearing 254 of the fixture. The first connecting block 2551 and the second connecting block 2552 are both arranged around the outer periphery of the corresponding pull rod 253.

[0039] With the above structure, in practical application, first push the pull block 251 backward, which will drive the two pull rods 253 and the positioning block 252 to move backward, compressing the fixture elastic element 255. Then, place the cylindrical battery 200 on the top of the placement platform 24, positioning the cylindrical battery 200 between the two pull rods 253 and in contact with the two inner walls of the V-groove 231. At this time, the positioning block 252 is located behind the cylindrical battery 200. Then release the pull block 251. Under the reset action of the fixture elastic element 255, the pull block 251 can be driven forward, which in turn can drive the two pull rods 253 and the positioning block 252 to move forward. In this way, the positioning block 252 can fix the cylindrical battery 200 between the positioning block 252 and the two inner walls of the V-groove 231 to prevent the cylindrical battery 200 from moving. Figure 1 As shown. Then rotate the cylindrical battery 200 so that the position of the eccentric injection hole 201 of the cylindrical battery 200 corresponds to the position of the calibration head 131, that is, the eccentric injection hole 201 and the calibration head 131 are located in the same vertical plane, as shown. Figure 6As shown. Then, the linear module 100 drives the eccentric injection hole calibration fixture 10 to move directly above the battery fixture 20, so that the calibration head 131 corresponds to the eccentric injection hole 201 of the cylindrical battery 200. Then, the limiting rod 132 is pulled upward, thereby pulling the calibration rod 13 upward, so that the calibration rod 13 separates from the groove 1121. Then, the limiting rod 132 is rotated, for example, 90 degrees, so that the calibration rod 13 can be rotated, for example, 90 degrees relative to the linear bearing 14 of the fixture, so that the limiting rod 132 is in front of the support plate 112. At this time, the support plate 112 will not block the limiting rod 132. Then, the limiting rod 132 is released, and the calibration rod 13 can move under its own weight. The tooling linear bearing 14 is moved downwards to ensure the linearity of the downward movement of the calibration rod 13. If the calibration head 131 can be inserted into the eccentric injection hole 201 of the cylindrical battery 200, then the position of the cylindrical battery 200 is correct. Then, the limiting rod 132 is pulled upwards and rotated so that the limiting rod 132 is above the groove 1121. Then, the limiting rod 132 is pushed downwards, which can drive the calibration rod 13 to move downwards relative to the tooling linear bearing 14 until the limiting rod 132 is placed back on the bottom of the groove 1121. In this way, the position of the eccentric injection hole 201 of the cylindrical battery 200 is checked.

[0040] If the calibration head 131 cannot be inserted into the eccentric injection hole 201 of the cylindrical battery 200, repeat the above operation until the calibration head 131 can be inserted into the eccentric injection hole 201 of the cylindrical battery 200.

[0041] The eccentric injection hole calibration fixture 10 of this utility model, through the calibration seat 11, calibration mounting plate 12, and calibration rod 13, verifies the position of the eccentric injection hole 201 when the injection hole of the cylindrical battery 200 is an eccentric injection hole 201. The calibration fixture 10 has high accuracy and can ensure that the position of the eccentric injection hole 201 of the cylindrical battery 200 is accurate. This allows the pre-compression nail suction mechanism and the helium return nailing mechanism of the helium return nailing test machine to smoothly perform the sealing nailing operation on the eccentric injection hole 201 of the cylindrical battery 200, ensuring the smooth progress of the nailing work.

[0042] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A calibration fixture for an eccentric injection hole, characterized in that, The device includes a calibration holder, a calibration mounting plate, and a calibration rod. One end of the calibration holder is located on one side of the calibration mounting plate, and the other end of the calibration holder has a through hole that passes through the top and bottom ends of the calibration holder. The calibration rod passes through the through hole and can move up and down and rotate relative to the calibration holder. The bottom end of the calibration rod is located below the calibration holder and forms a calibration head. The outer diameter of the calibration head is smaller than the outer diameter of the calibration rod. The top end of the calibration rod is located above the calibration holder. The top end of the calibration holder has a support plate located between the through hole and the calibration mounting plate. A limit rod is vertically arranged on the outer circumferential surface of the calibration rod and rests on the top end of the support plate.

2. The eccentric injection hole calibration fixture according to claim 1, characterized in that, The bottom end of the calibration base is provided with a tooling linear bearing corresponding to the through hole. The tooling linear bearing is sleeved on the outer periphery of the calibration rod, and the bottom end of the calibration rod is located below the tooling linear bearing.

3. The eccentric injection hole calibration fixture according to claim 1, characterized in that, The top of the support plate is provided with a groove, and the limiting rod rests on the bottom of the groove.

4. The eccentric injection hole calibration fixture according to claim 1, characterized in that, The outer circumferential surface of the calibration rod is provided with a first mounting hole that penetrates radially, and the end of the limiting rod near the calibration rod is provided with a second mounting hole corresponding to the first mounting hole. Fasteners are installed in the first mounting hole and the second mounting hole.

5. The eccentric injection hole calibration fixture according to claim 1, characterized in that, The bottom end of the calibration rod has a transition portion, which is in the shape of an inverted frustum cone, and the end of the transition portion away from the calibration rod has the calibration head.

6. The eccentric injection hole calibration fixture according to claim 1, characterized in that, The support plate and the calibration mounting plate are connected by a rib plate, which is located at the top of the calibration base.

7. A fixture mechanism, comprising a battery fixture, characterized in that, It also includes the eccentric injection hole calibration fixture as described in any one of claims 1-6, the eccentric injection hole calibration fixture being located above the battery fixture.

8. The fixture mechanism according to claim 7, characterized in that, The battery fixture includes a fixture base plate, a fixture mounting component, a placement platform, and a clamp. The top of the machine base is provided with a fixture mounting plate, the fixture base plate is located at the top of the fixture mounting plate, the fixture mounting component is located at the top of the fixture base plate, a V-shaped groove is provided on the side of the fixture mounting component near the drive mechanism, the placement platform is located at the top of the fixture base plate and behind the fixture mounting component, and part of the placement platform extends into the V-shaped groove. The fixture includes a pulling block, a positioning block, and two pull rods. The pulling block and the positioning block are arranged opposite each other. The fixture mounting component is located between the pulling block and the positioning block. The two pull rods are respectively arranged through two through holes of the fixture mounting component. One end of each pull rod is connected to the pulling block, and the other end of each pull rod is connected to the positioning block. The V-groove is located between the two pull rods. A fixture linear bearing is provided in the through hole. The fixture linear bearing is sleeved on the outer circumference of the corresponding pull rod. A fixture elastic element is provided between the fixture linear bearing and the pulling block. The fixture elastic element is arranged around the outer circumference of the corresponding pull rod. One end of the fixture elastic element is connected to the pulling block, and the other end of the fixture elastic element is connected to the fixture linear bearing.

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