Quick replacement positioning structure of high-precision pole piece mold

Abstract

This application relates to the field of battery manufacturing technology, and in particular to a quick-change positioning structure for high-precision electrode molds. The structure includes a base, on the top of which a mold assembly is mounted. The mold assembly is installed on the top of the base via a quick-release assembly. This application utilizes components such as a turntable, knob, lead screw, cross-shaped push block, and inclined slider. Through the fixed connection between the turntable and a threaded sleeve, and the threaded engagement between the lead screw and the threaded sleeve, rotating the knob drives the lead screw to move axially, thereby pushing the cross-shaped push block to press against the inclined slider. The acute-angle contact surface design between the inclined slider and the cross-shaped push block converts axial movement into radial movement, causing it to press against the limiting ring of the mold assembly. Therefore, this device allows for quick tightening or loosening of the inclined slider against the mold assembly through simple knob rotation, significantly improving the convenience and efficiency of mold replacement.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a quick-change positioning structure for high-precision electrode molds. Background Technology

[0002] In the field of modern high-precision electrode manufacturing, the mold, as a key forming component, has a decisive impact on production efficiency and product quality due to its replacement efficiency and positioning accuracy. Traditional electrode mold replacement typically relies on bolt tightening and pin positioning, which is not only cumbersome and time-consuming, making it difficult to meet the frequent mold change requirements of automated production lines, but also prone to positioning deviations during repeated disassembly and assembly, leading to decreased electrode processing accuracy and increased scrap rate. Furthermore, traditional structures lack mold stability under high-speed operation and high-pressure processing conditions, posing a risk of loosening, which severely restricts the improvement of production efficiency and the assurance of product quality.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Existing devices have low installation and disassembly efficiency, rely on tools or complex operations, and traditional devices mostly use rigid connection structures such as bolts and nuts, requiring the use of tools such as wrenches for tightening and fixing. Installation and disassembly are time-consuming and labor-intensive, especially in scenarios requiring frequent mold changes. Furthermore, they lack a rapid linkage mechanism, making it impossible to achieve multi-directional synchronous clamping or release through simple knob rotation, resulting in cumbersome operation steps. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a quick-change positioning structure for high-precision electrode molds.

[0005] This utility model achieves the above objectives through the following technical solution: a quick-change positioning structure for a high-precision electrode mold, including a base, a mold assembly being provided on the top of the base, and the mold assembly being installed on the top of the base via a quick-release assembly;

[0006] The quick-release assembly includes a turntable and knob for fastening the mold assembly, a cross pusher block that pushes the inclined slider to move via an inclined plane, an inclined slider that fixes the mold assembly by means of reaction force, and a positioning post for accommodating the inclined slider; a threaded sleeve is fixedly connected to the top of the turntable, the threaded sleeve is threaded onto one side of the lead screw, and the positioning post passes through the mounting hole of the base and the mold assembly.

[0007] Preferably, the mold assembly includes a mold base for fixing the mold body to the quick-release assembly, a mold body fixedly connected to the top of the mold base, and a limiting ring for fixing the mold base to the quick-release assembly. The limiting ring is fixedly sleeved inside the mounting hole of the base. The interference fit between the limiting ring and the mounting hole ensures the radial positioning accuracy of the mold and reduces repeated installation errors.

[0008] Preferably, the quick-release assembly further includes a limiting groove formed at the bottom of the inclined slider, a spring sleeved inside the limiting groove, and a limiting block fixedly connected to one side of the spring. The limiting block is fixedly connected to the bottom of the positioning post groove and movably connected inside the limiting groove to prevent the inclined slider from completely disengaging from the positioning post. The spring pre-compression design ensures that the inclined slider is always subjected to elastic restoring force, avoiding the risk of disengagement, while also maintaining the dynamic balance of the clamping force.

[0009] Preferably, the cross-shaped push block is fixedly connected to the bottom of the lead screw, and the bottom of the positioning post has an internal hexagonal slot, which is adapted to the external hexagonal block at the bottom of the base. To achieve high-precision alignment between the internal hexagonal slot and the external hexagonal block for rapid positioning, the rectangular thread is used to enhance the load-bearing capacity and anti-eccentric load performance of the lead screw drive.

[0010] Preferably, the angle between the inclined surface of the inclined slider and the contact surface of the cross push block is an acute angle, so that the axial movement of the cross push block can be converted into the radial movement of the inclined slider to press or release the mold assembly. The optimized inclined angle design ensures that the axial driving force is efficiently converted into radial clamping force, reducing the operating torque requirement and improving the locking response speed.

[0011] Preferably, the spring is a compression spring, whose length in its natural state is greater than the depth of the limiting groove, so that when the inclined slider moves, the spring is always in a pre-compressed state to provide a restoring elastic force. To ensure the stability of the slider's restoring state, the constraint between the limiting block and the groove ensures the controllability of the slider's stroke.

[0012] Preferably, the outer circumferential surface of the limiting ring and the inner circumferential surface of the mounting hole in the base are interference-fitted to achieve radial positioning of the mold assembly. This interference fit eliminates assembly clearances, enhances the vibration resistance of the mold assembly, and ensures consistent positioning during long-term use.

[0013] Preferably, the fit tolerance between the internal hexagonal slot at the bottom of the positioning post and the external hexagonal block at the bottom of the base is H7 / h6 to ensure rapid alignment and disassembly. To achieve precise tolerance matching and reduce alignment adjustment time, a quick-release structure is used to enable disassembly and reassembly operations within seconds.

[0014] Preferably, the threads of the lead screw and the threaded sleeve are rectangular threads to provide high load-bearing capacity and stability. The large contact area of ​​the rectangular threads significantly improves shear resistance, ensuring the reliability of the locking mechanism under high load conditions.

[0015] Preferably, the turntable and the threaded sleeve are integrally formed to ensure the integrity and reliability of the transmission. This integrated design eliminates connection gaps, enhances the structural rigidity of the rotary transmission, and avoids torque loss or off-center load problems caused by separate assembly.

[0016] The beneficial effects of this utility model are as follows: This high-precision electrode mold quick-change positioning structure, through the setting of components such as a turntable, knob, lead screw, cross pusher block, and inclined slider, and through the fixed connection between the turntable and the threaded sleeve, and the threaded engagement between the lead screw and the threaded sleeve, allows the knob to rotate, driving the lead screw to move axially, thereby pushing the cross pusher block to press against the inclined slider. The design of the inclined surface of the inclined slider and the acute angle contact surface of the cross pusher block converts the axial movement into radial movement, causing it to press against the limiting ring of the mold assembly. Thus, this device can achieve quick fastening or release of the inclined slider against the mold assembly through a simple knob rotation, significantly improving the convenience and efficiency of mold replacement. By setting components such as the inclined slider, limiting groove, spring, and limiting block, and through the movable connection between the limiting block and the limiting groove, and the pre-compression state of the spring, the spring always provides a restoring elastic force and prevents the inclined slider from completely disengaging from the positioning post when moving radially. At the same time, the positioning post passes through the mounting hole of the base and the mold assembly, and the interference fit of the limiting ring achieves radial positioning. Therefore, this device can ensure that the inclined slider can stably and reliably press the mold through the elastic reset and limiting structure of the spring, and take into account both positioning accuracy and operational stability during rapid changeover, effectively avoiding mold loosening or misalignment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the main structure of the quick-release component in an embodiment of this application;

[0020] Figure 4 This is a partial structural diagram of the quick-release component in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of a partial structure installation of the quick-release component in an embodiment of this application;

[0022] Reference numerals: 1. Base; 2. Mold assembly; 201. Mold base; 202. Mold body; 203. Limiting ring; 3. Quick release assembly; 301. Turntable; 302. Threaded sleeve; 303. Knob; 304. Lead screw; 305. Positioning pin; 306. Limiting groove; 307. Cross push block; 308. Angled slider; 309. Spring; 310. Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 As shown, the quick-change positioning structure for high-precision electrode molds includes a base 1, a mold assembly 2 on the top of the base 1, and the mold assembly 2 is installed on the top of the base 1 via a quick-release assembly 3.

[0025] The quick-release assembly 3 includes a turntable 301 and a knob 303 for fastening the mold assembly 2, a cross pusher 307 that pushes the inclined slider 308 to move via the inclined plane, the inclined slider 308 that fixes the mold assembly 2 by means of reaction force, and a positioning post 305 for accommodating the inclined slider 308; a threaded sleeve 302 is fixedly connected to the top of the turntable 301, the threaded sleeve 302 is threaded onto one side of the lead screw 304, and the positioning post 305 passes through the mounting hole of the base 1 and the mold assembly 2.

[0026] The quick-release assembly 3 also includes a limiting groove 306 formed at the bottom of the inclined slider 308, a spring 309 sleeved inside the limiting groove 306, and a limiting block 310 fixedly connected to one side of the spring 309. The limiting block 310 is fixedly connected to the bottom of the groove of the positioning post 305, and the limiting block 310 is movably connected inside the limiting groove 306 to prevent the inclined slider 308 from completely disengaging from the positioning post 305.

[0027] The cross push block 307 is fixedly connected to the bottom of the lead screw 304. The bottom of the positioning column 305 is provided with an internal hexagonal slot, and the internal hexagonal slot is adapted to the external hexagonal block at the bottom of the base 1.

[0028] The angle between the inclined surface of the inclined slider 308 and the contact surface of the cross push block 307 is an acute angle, which allows the axial movement of the cross push block 307 to be converted into the radial movement of the inclined slider 308 to press or release the mold assembly 2.

[0029] Spring 309 is a compression spring, and its length in its natural state is greater than the depth of the limiting groove 306, so that when the inclined slider 308 moves, spring 309 is always in a pre-compressed state to provide a restoring elastic force.

[0030] The fit tolerance between the internal hexagonal slot at the bottom of the positioning post 305 and the external hexagonal block at the bottom of the base 1 is H7 / h6 to ensure quick alignment and disassembly.

[0031] The threads of the lead screw 304 and the threaded sleeve 302 are rectangular threads to provide high load-bearing capacity and stability.

[0032] The turntable 301 and the threaded sleeve 302 are integrally formed to ensure the integrity and reliability of the transmission.

[0033] The mold assembly 2 includes a mold base 201 for fixing the mold body 202 in conjunction with the quick-release assembly 3, the mold body 202 fixedly connected to the top of the mold base 201, and a limiting ring 203 for fixing the mold base 201 in conjunction with the quick-release assembly 3. The limiting ring 203 is fixedly sleeved inside the mounting hole of the base 1.

[0034] The outer circumferential surface of the limiting ring 203 is interference-fitted with the inner circumferential surface of the mounting hole of the base 1 to achieve radial positioning of the mold assembly 2.

[0035] Further explanation is needed: Mold assembly 2 is the core supporting unit of the high-precision electrode mold quick-change positioning structure. It mainly consists of mold base 201, mold body 202, and limiting ring 203. Mold base 201 serves as the basic carrier for fixing and installing mold body 202, ensuring the accuracy and stability required for electrode processing. Mold body 202 directly undertakes the forming or processing function of the electrode. Its installation accuracy is ensured by the cooperation between mold base 201 and quick-release assembly 3. Limiting ring 203 is a key component for realizing the radial positioning of mold assembly 2. Its outer circumferential surface is interference-fitted with the inner circumferential surface of the mounting hole of base 1, which can quickly complete the radial positioning during mold installation and avoid processing errors caused by radial wobbling. This design not only ensures the rigid connection between mold assembly 2 and base 1, but also provides a stable reference surface for the axial locking of quick-release assembly 3, so that the mold maintains positional accuracy under high-speed operation or high-pressure processing environment, meeting the requirements of high-precision electrode production.

[0036] Quick-release assembly 3 is the core actuator for achieving rapid mold replacement and precise positioning. Through a mechanical linkage structure, it converts rotational motion into radial clamping force. It mainly consists of a turntable 301, threaded sleeve 302, lead screw 304, cross push block 307, inclined slide block 308, and positioning pin 305. When the knob 303 is rotated, the threaded sleeve 302 drives the lead screw 304 to move axially, and the cross push block 307 at the bottom of the lead screw 304 moves synchronously. Utilizing the acute angle design of the contact surface between the inclined slide block 308 and the cross push block 307, the axial force is converted into radial thrust of the inclined slide block 308. When the inclined slide block 308 extends radially, its outer end contacts and clamps the inner wall of the limiting ring 203 of the mold assembly 2, fixing the mold assembly 2 onto the base 1 through a reaction force. Reverse rotation… When the knob 303 is turned, the pre-compression force of the spring 309 pushes the inclined slider 308 to reset, releasing the clamping state and realizing the quick disassembly of the mold. The positioning post 305 passes through the mounting holes of the base 1 and the mold assembly 2. The internal hexagonal slot at the bottom cooperates with the external hexagonal block of the base 1 to ensure the quick disassembly assembly 3 and the base 1 are quickly aligned. The combined structure of the limiting groove 306, the spring 309 and the limiting block 310 prevents the inclined slider 308 from completely disengaging from the positioning post 305, ensuring the reliability of the mechanism. The rectangular threaded screw 304 and the threaded sleeve 302 provide high load-bearing capacity. The integrally formed turntable 301 and the threaded sleeve 302 enhance the overall transmission integrity, making the entire quick disassembly process both efficient and precise, significantly improving the mold change efficiency and meeting the needs of frequent mold changes in automated production lines.

[0037] The implementation principle of the quick-change positioning structure for the high-precision electrode mold in this application embodiment is as follows:

[0038] First, the mold assembly 2 is installed and positioned. The mold assembly 2 is placed on top of the base 1. The limiting ring 203 in the mold assembly 2 achieves radial positioning of the mold assembly 2 by means of the interference fit between the outer peripheral surface and the inner peripheral surface of the mounting hole of the base 1, ensuring the accurate installation position of the mold and providing a stable reference for subsequent fixing.

[0039] Secondly, activate the quick-release assembly 3 and rotate the knob 303 to drive the turntable 301 linked with the knob 303 to rotate. The threaded sleeve 302 integrally formed on the top of the turntable 301 will rotate accordingly. Since the threaded sleeve 302 is threaded onto the lead screw 304, the rotation of the threaded sleeve 302 is converted into the axial movement of the lead screw 304.

[0040] Next, the mold is fastened. When the lead screw 304 moves axially, the cross push block 307 fixedly connected to its bottom moves synchronously. Since the angle between the inclined surface of the inclined slider 308 and the contact surface of the cross push block 307 is an acute angle, the axial movement of the cross push block 307 is converted into the radial movement of the inclined slider 308. When the inclined slider 308 extends radially, its outer end contacts and presses against the inner wall of the limiting ring 203 of the mold assembly 2. The reaction force firmly fixes the mold assembly 2 on the base 1.

[0041] Next, release the mold lock, rotate the knob 303 in the opposite direction to make the lead screw 304 move axially in the opposite direction. The cross push block 307 drives the inclined slider 308 to lose radial thrust. At this time, the spring 309, which is in a pre-compressed state, releases its elastic force and pushes the inclined slider 308 to reset, releasing the clamping state on the mold assembly 2.

[0042] Finally, after the mold replacement is completed and the inclined slider 308 is reset, the mold assembly 2 is no longer fixed and can be directly removed from the top of the base 1 to complete the mold replacement operation.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-precision pole piece mold quick replacement positioning structure, comprising a base (1), characterized in that: A mold assembly (2) is provided on the top of the base (1), and the mold assembly (2) is installed on the top of the base (1) by a quick-release assembly (3); The quick-release assembly (3) includes a turntable (301) and a knob (303) for fastening the mold assembly (2), a cross pusher (307) for moving the inclined slider (308) by pushing it with an inclined plane, an inclined slider (308) for fixing the mold assembly (2) by means of reaction force, and a positioning post (305) for accommodating the inclined slider (308); a threaded sleeve (302) is fixedly connected to the top of the turntable (301), the threaded sleeve (302) is threaded onto one side of the lead screw (304), and the positioning post (305) passes through the mounting hole of the base (1) and the mold assembly (2). The quick-release assembly (3) also includes a limiting groove (306) opened at the bottom of the inclined slider (308), a spring (309) sleeved inside the limiting groove (306), and a limiting block (310) fixedly connected to one side of the spring (309). The limiting block (310) is fixedly connected to the bottom of the groove of the positioning post (305), and the limiting block (310) is movably connected inside the limiting groove (306) to restrict the inclined slider (308) from completely disengaging from the positioning post (305). The cross push block (307) is fixedly connected to the bottom of the lead screw (304), and the bottom of the positioning column (305) is provided with an internal hexagonal slot, and the internal hexagonal slot is adapted to the external hexagonal block at the bottom of the base (1). The angle between the inclined surface of the inclined slider (308) and the contact surface of the cross push block (307) is an acute angle, so that the axial movement of the cross push block (307) can be converted into the radial movement of the inclined slider (308) to press or release the mold assembly (2).

2. The quick replacement positioning structure of high-precision pole piece mold according to claim 1, characterized in that: The mold assembly (2) includes a mold base (201) for fixing the mold body (202) in conjunction with the quick-release assembly (3), a mold body (202) fixedly connected to the top of the mold base (201), and a limiting ring (203) for fixing the mold base (201) in conjunction with the quick-release assembly (3). The limiting ring (203) is fixedly sleeved inside the mounting hole of the base (1).

3. The quick replacement positioning structure of high-precision pole piece mold according to claim 1, characterized in that: The spring (309) is a compression spring, and its length in its natural state is greater than the depth of the limiting groove (306), so that when the inclined slider (308) moves, the spring (309) is always in a pre-compressed state to provide a restoring elastic force.

4. The quick-change positioning structure for high-precision electrode molds according to claim 2, characterized in that: The outer circumferential surface of the limiting ring (203) is interference-fitted with the inner circumferential surface of the mounting hole of the base (1) to achieve radial positioning of the mold assembly (2).

5. The quick-change positioning structure for high-precision electrode molds according to claim 1, characterized in that: The fit tolerance between the internal hexagonal slot at the bottom of the positioning post (305) and the external hexagonal block at the bottom of the base (1) is H7 / h6.

6. The quick-change positioning structure for high-precision electrode molds according to claim 1, characterized in that: The threads of the lead screw (304) and the threaded sleeve (302) are rectangular threads.

7. The quick-change positioning structure for high-precision electrode molds according to claim 1, characterized in that: The turntable (301) and the threaded sleeve (302) are integrally formed.

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