A high-precision winding locking and positioning forming mold

Abstract

This utility model discloses a high-precision winding locking and positioning forming mold, belonging to the technical field of coil winding processing tooling molds. It includes an upper mold module and a lower mold module that are vertically aligned and can be opened and closed. The upper mold module includes an upper mold body base, a wire clamp elastic drive block, an elastic wire clamping jaw, multiple sets of elastic mold core clamping inserts, and a spring pre-tensioning adjustment component. The lower mold module includes a lower mold positioning base, a lifting self-locking limit component, and an elastic downward pressing wire feeding component. This utility model uses the above-mentioned high-precision winding locking and positioning forming mold to achieve flexible clamping, automatic positioning, and precise wire pressing between the upper and lower mold modules through spring compression. It achieves high winding accuracy and strong adhesion, and is suitable for automated winding production of precision coils. It solves the problems of rigid pressure damage to the mold core, unstable wire clamping, uncontrollable positioning of moving blocks, and poor wire adhesion of traditional winding molds.

Description

Technical Field

[0001] This utility model relates to the field of tooling molds for coil winding processing, and in particular to a high-precision winding locking and positioning forming mold. Background Technology

[0002] Currently, in the automated winding production of miniature precision coils, the mold needs to simultaneously achieve processes such as stable positioning of the mold core, precise clamping of the wire end, and adhesive compaction of the wire to the mold core. Traditional upper molds mostly use rigid, hard-pressing structures without elastic buffering compensation structures. When clamping the precision mold core, it is very easy to cause damage and deformation of the mold core, resulting in a high product scrap rate. At the same time, traditional clamps have a fixed clamping force and cannot flexibly adapt to the wire, making it easy for wire to drift, loosen, or shift during the winding process. Traditional lower mold sliding seat lifting lacks an automatic locking structure and relies entirely on mechanical limiters on guide rails. The repeatability of positioning is poor, and after long-term high-speed automated production, cumulative errors are likely to occur, leading to poor winding consistency. Furthermore, traditional molds lack an independent elastic pressure bonding structure, relying solely on the winding tension to bond the adhesive. This results in frequent issues such as loose bonding, delamination, and weak adhesion, leading to insufficient bonding strength and low yield of finished coils. Additionally, the inter-mechanism linkage is poor, and the adjustability is weak. It is impossible to fine-tune the elastic pressure according to different mold core specifications and wire diameters, resulting in poor versatility and adaptability, making it difficult to meet the demands of high-precision, high-speed automated winding production.

[0003] Therefore, a high-precision winding locking and positioning forming mold with multiple independent springs for pressure adjustment, automatic locking, and elastic adaptive pressure wire bonding is needed. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision winding locking and positioning forming mold. By using a compression spring, the upper mold module and the lower mold module can achieve flexible clamping, automatic positioning, and precise wire pressing. The winding accuracy is high and the bonding is firm. It is suitable for automated winding production of precision coils and solves the problems of rigid pressure damage to the mold core, unstable wire clamping, uncontrollable positioning of the moving block, and poor wire bonding effect of traditional winding molds.

[0005] To achieve the above objectives, this utility model provides a high-precision winding locking and positioning forming mold, including an upper mold module and a lower mold module that are arranged vertically and can be opened and closed vertically. The upper mold module includes an upper mold body base, a wire clamp elastic drive block is provided above the upper mold body base, an elastic wire clamping jaw is provided above the wire clamp elastic drive block, and multiple sets of elastic mold core clamping inserts and spring preload adjustment components are provided on the other side of the wire clamp elastic drive block. The lower mold module includes a lower mold positioning base, an elastic pressing and routing assembly on one side of the lower mold positioning base, and a lifting self-locking limit assembly on one side of the elastic pressing and routing assembly.

[0006] Preferably, the elastic mold core clamping insert assembly includes an elastic mold core clamping insert, a first fine-tuning top block, and a second fine-tuning top block. The elastic mold core clamping insert, the first fine-tuning top block, and the second fine-tuning top block are all disposed on the upper mold body base. The first fine-tuning top block and the second fine-tuning top block cooperate with the spring preload adjustment assembly.

[0007] Preferably, the spring preload adjustment assembly includes a top block pressure adjustment knob and a spring preload adjustment screw. Both the top block adjustment knob and the spring preload adjustment screw are mounted on the upper mold body base. The first fine-tuning top block cooperates with the top block adjustment knob, and the second fine-tuning top block cooperates with the spring preload adjustment screw.

[0008] Preferably, the lifting self-locking limit assembly includes a limit assembly carrier seat, which is fixed to the side of the lower mold positioning base. A limit push block is slidably embedded inside the limit assembly carrier seat. A locking spring adjusting screw is provided on one side of the limit push block. The limit push block has a built-in compression spring, and the locking spring adjusting screw works with the limit push block to adjust the spring force of the compression spring.

[0009] Preferably, the elastic pressing cable routing assembly includes a lifting sliding seat and a precision linear slide rail. The lifting sliding seat is vertically slidably mounted on the precision linear slide rail. An elastic pressing insert is connected to the lifting sliding seat. The side of the lifting sliding seat cooperates with a limit push block to achieve automatic upward locking. The elastic pressing insert has an independent compression spring built in.

[0010] Preferably, the guide surface at the front end of the limiting push block is an inclined surface, and the limiting push block cooperates with the lifting sliding seat through the inclined surface.

[0011] Therefore, this utility model adopts the above-mentioned high-precision winding locking and positioning forming mold. By using multiple sets of independent spring clamping structures, the elastic mold core clamping insert, the first fine-adjusting top block, and the second fine-adjusting top block flexibly fit the mold core, avoiding the problem of rigid pressure damaging the mold core. Moreover, the pressure of each set can be independently fine-tuned, and the mold core is subjected to uniform force and stable positioning.

[0012] By setting up an independent elastic wire clamping structure, the wire clamp elastically drives the lever block to link with the elastic wire clamping jaws to elastically clamp the wire. The clamping force is gentle and stable, and will not damage the enameled wire. At the same time, it avoids problems such as wire drifting, loosening, and displacement during the winding process.

[0013] By setting up an inclined automatic locking structure, the lifting sliding seat is automatically locked by the limit push block after it moves up to the correct position. The positioning is accurate, no manual calibration is required, the repeatability is high, and it is suitable for high-speed automated continuous production.

[0014] By setting up an adaptive wire pressing structure with elastic pressing inserts, the wire can be actively, flexibly, and evenly pressed onto the surface of the mold core adhesive, ensuring sufficient adhesive wetting and tight bonding, and significantly reducing the rate of poor adhesion and delamination.

[0015] The entire structure adopts a spring-adaptive linkage structure, which is compact, responsive, easy to adjust, modular, easy to disassemble and maintain, highly versatile, and suitable for mass production of multi-specification miniature precision coils.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-precision winding locking and positioning forming mold according to this utility model; Figure 2 This is a schematic diagram of the specific structure of the lower mold module in this utility model; Figure 3 This is a schematic diagram of the specific structure of the lower mold positioning base in this utility model; Figure 4 This is a schematic diagram of the specific structure of the lifting self-locking limit component of the lower mold module in this utility model; Figure 5 This is a schematic diagram of the specific structure of the elastic pressing and routing assembly of the lower mold module in this utility model; Figure 6 This is a schematic diagram of the specific structure of the elastic mold core clamping insert assembly of the upper mold module in this utility model.

[0018] Figure Labels 1. Upper mold module; 1.1 Upper mold body base; 1.2 Wire clamp elastic drive block; 1.3 Elastic wire clamping jaws; 1.4 Elastic mold core clamping insert; 1.5 First fine-tuning top block; 1.6 Spring preload adjustment screw; 1.7 Second fine-tuning top block; 1.8 Top block pressure adjustment knob; 2. Lower mold module; 2.1 Lower mold positioning base; 2.2 Lifting self-locking limit assembly; 2.2.1 Limiting push block; 2.2.2 Limiting assembly bearing seat; 2.2.3 Locking spring pressure adjusting screw; 2.3 Elastic downward pressing wire routing assembly; 2.3.1 Elastic downward pressing insert; 2.3.2 Lifting sliding seat; 2.3.3 Precision linear slide rail. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1-6 As shown, a high-precision winding locking and positioning forming mold includes an upper mold module 1 and a lower mold module 2, which are vertically aligned and can be opened and closed. The upper mold module 1 includes an upper mold body base 1.1, a wire clamp elastic drive block 1.2 above the upper mold body base 1.1, an elastic wire clamping jaw 1.3 above the wire clamp elastic drive block 1.2, and multiple sets of elastic mold core pressing inserts and spring preload adjustment components on the other side of the wire clamp elastic drive block 1.2. The lower mold module 2 includes a lower mold positioning base 2.1, an elastic downward pressing wire routing component 2.3 on one side of the lower mold positioning base 2.1, and a lifting self-locking limit component 2.2 on one side of the elastic downward pressing wire routing component 2.3.

[0022] The main body of the upper mold module 1 is the upper mold main body base 1.1. The top of the upper mold main body base 1.1 is equipped with an equipment mounting flange, which can be fixedly connected to the vertical drive mechanism of the winding machine to realize the overall vertical lifting and opening action.

[0023] The upper mold body base 1.1 is equipped with multiple sets of independent elastic mold core clamping inserts, namely elastic mold core clamping insert 1.4, first fine-tuning top block 1.5, and second fine-tuning top block 1.7; each set of top blocks is independently equipped with a compression spring at the rear end to realize downward flexible clamping force output.

[0024] The spring preload of the first fine-tuning top block 1.5 is manually adjusted by rotating the top block pressure adjustment knob 1.8: first, stop the equipment and raise the upper mold to the safe position, rotate the top block pressure adjustment knob 1.8 clockwise to compress the spring and increase the clamping force, and rotate the top block pressure adjustment knob 1.8 counterclockwise to compress the spring and decrease the preload. Fine-tune step by step and check the mold core fitting status to calibrate to the clamping force suitable for the working conditions; the spring preload of the second fine-tuning top block 1.7 is adjusted by the spring preload adjustment knob 1.6: similarly, first lock the equipment to the safe state, rotate the spring preload adjustment knob 1.6 to change the spring compression, match the force requirements of the corresponding area, and then check the overall force uniformity; through the independent pressure adjustment structure, the clamping force can be adjusted individually according to the thickness, hardness, and force requirements of different areas of the mold core to ensure that the mold core is uniformly stressed, without local pressure damage, and without gaps.

[0025] The upper mold body base 1.1 is equipped with a wire clamp elastic drive block 1.2 and an elastic wire clamping jaw 1.3 on the side. The wire clamp elastic drive block 1.2 has a built-in reset spring and a symmetrical hinged linkage transmission mechanism. The transmission mechanism consists of an active push plate, two swing linkages, and a driven jaw seat. The active push plate is rigidly connected to the outer pressing force surface of the block. The two ends of the swing linkage are respectively hinged to the active push plate and the driven jaw seat. The driven jaw seat is fixedly assembled to the clamping end of the elastic wire clamping jaw 1.3. When the elastic drive lever 1.2 of the wire clamp is pressed manually or by equipment, the active push plate moves linearly along the guide, and the downward linear force is converted into radial clamping torque of the jaw seats through the swing linkage. This drives the elastic wire clamp jaws 1.3 to close, thus clamping the wire end. After clamping, the wire is checked to ensure there is no slippage or compression deformation. After the elastic drive lever 1.2 of the wire clamp is released, the built-in return spring rebounds and pushes the active push plate back to its original position. The linkage synchronously drives the driven jaw seats on both sides to open outward, and the elastic wire clamp jaws 1.3 automatically open simultaneously to release the wire. The cycle operation can complete continuous wire clamping and releasing operations.

[0026] The overall working mode of the upper mold module 1 is as follows: after the mold descends, the elastic mold core clamping insert 1.4, the first fine-adjusting ejector block 1.5, and the second fine-adjusting ejector block 1.7 move closer to the mold core in sync with the module. The compression springs at the rear ends of each set of ejector blocks deform in sequence to output flexible clamping force, adaptively conforming to the surface of the mold core and compensating for shape and position deviations, so as to achieve accurate positioning without damage. At the same time, the wire clamp structure elastically clamps the starting end of the wire to ensure zero wire displacement throughout the winding process.

[0027] The lower mold module 2 consists of a lower mold positioning base 2.1, a lifting self-locking limit component 2.2, and an elastic pressing wiring component 2.3. The lower mold positioning base 2.1 is the bearing base of the entire lower mold, used to fix and install the mold core and bear the sliding and limiting components.

[0028] The limiting component carrier 2.2.2 is fixed to the side of the lower mold positioning base 2.1. The limiting push block 2.2.1 is slidably embedded inside the carrier and has a built-in compression spring. The locking spring adjusting screw 2.2.3 is used to adjust the size of the built-in spring's pushing force: First, stop the equipment and expose the adjustment position. Rotate the locking spring adjusting screw 2.2.3 to change the spring compression stroke. Turning it clockwise increases the pushing force, and turning it counterclockwise decreases the force. After fine adjustment, verify the smoothness of sliding and the reliability of locking of the limiting push block 2.2.1 to meet the requirements of the wiring limiting condition. The elastic pressing wiring component 2.3 includes an elastic pressing insert 2.3.1, a lifting sliding seat 2.3.2, and a precision linear slide rail 2.3.3. The precision linear slide rail 2.3.3 is vertically fixed, and the lifting sliding seat 2.3.2 is slidably installed on the precision linear slide rail 2.3.3, which can stably lift vertically.

[0029] The elastic pressing cable routing assembly 2.3 includes an elastic pressing insert 2.3.1, a lifting sliding seat 2.3.2, and a precision linear slide rail 2.3.3; the precision linear slide rail 2.3.3 is vertically fixed, and the lifting sliding seat 2.3.2 is slidably mounted on the precision linear slide rail 2.3.3, which can stably lift vertically.

[0030] When the device drives the lifting sliding seat 2.3.2 to slide upward along the precision linear slide rail 2.3.3, the side wall of the lifting sliding seat 2.3.2 contacts the guide slope of the limiting push block 2.2.1, and the pressure of the slope causes the limiting push block 2.2.1 to compress the internal spring and retract inward to avoid the obstruction. When the lifting sliding seat 2.3.2 rises to the preset winding working position, the limit push block 2.2.1 aligns with the slot position of the lifting sliding seat 2.3.2, and the internal spring rebounds to push the limit push block 2.2.1 outward to snap into the slot, realizing the automatic locking and positioning of the lifting sliding seat 2.3.2. The positioning position is accurate, without deviation or shaking.

[0031] After the lifting sliding seat 2.3.2 is locked, the elastic pressing insert 2.3.1 of its front floating assembly adapts to the downward micro-pressure displacement by the built-in compression spring, and evenly presses the pre-placed wire onto the glued surface of the mold core, so that the wire and glue are fully and tightly bonded, effectively improving the bonding strength of the coil.

[0032] When unlocking and resetting are required, press the locking spring adjusting screw 2.2.3 to compress the internal spring, and the limit push block 2.2.1 will retract and disengage from the slot. The lifting sliding seat 2.3.2 can then smoothly descend and reset along the precision linear slide rail 2.3.3. At the same time, the elastic pressing insert 2.3.1 will reset the loosened wire.

[0033] Working principle: At the pre-installation station, fix the mold core to be processed onto the lower mold positioning base 2.1, apply glue evenly to the winding area of ​​the mold core, and place the wire end between the elastic wire clamp jaw 1.3 and the elastic pressing insert 2.3.1.

[0034] The lower mold is lifted and locked. The lifting sliding seat 2.3.2 moves upward along the precision linear slide rail 2.3.3. After passing the inclined surface of the limit push block 2.2.1, it automatically locks itself in place. The elastic pressing insert 2.3.1 elastically presses down the wire to apply adhesive.

[0035] The upper mold presses down to position the wire clamp, and the upper mold module 1 moves downward as a whole. The elastic mold core pressing insert 1.4, the first fine-adjusting top block 1.5, and the second fine-adjusting top block 1.7 are fed synchronously with the module. Relying on the independent spring force, they adaptively fit the mold core contour, flexibly tighten to eliminate gaps and apply pressure evenly; the pressing wire clamp elastic drive lever 1.2 and the elastic wire clamp jaws 1.3 clamp the wire end.

[0036] The automated winding system, under multiple stable limiting conditions including elastic clamping of upper and lower dies, wire clamping, and wire adhesive application, enables the equipment to complete coil winding at high speed.

[0037] After resetting and taking out the material, the upper mold module 1 moves upward to loosen the mold and wire after winding; press the locking spring adjusting screw 2.2.3 to unlock, the lifting sliding seat 2.3.2 moves downward to reset, the finished coil is taken out, and the next cycle begins.

[0038] This utility model provides a high-precision winding locking and positioning forming mold. The entire mold adopts a spring adaptive linkage structure, which is compact, responsive, easy to adjust, modular, easy to disassemble and maintain, and highly versatile. It is suitable for mass production of multi-specification micro precision coils. By compressing the spring, the upper mold module and the lower mold module are flexibly pressed, automatically positioned, and precisely pressed into place. The winding accuracy is high and the bonding is firm. It is suitable for automated winding production of precision coils and solves the problems of rigid pressure damaging the mold core, unstable wire clamping, uncontrollable positioning of the moving block, and poor wire bonding effect of traditional winding molds.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A high-precision winding locking and positioning forming mold, characterized in that: It includes an upper mold module and a lower mold module that are set up vertically and can be opened and closed vertically; The upper mold module includes an upper mold body base, a wire clamp elastic drive block is provided above the upper mold body base, an elastic wire clamping jaw is provided above the wire clamp elastic drive block, and multiple sets of elastic mold core pressing inserts and spring preload adjustment components are provided on the other side of the wire clamp elastic drive block. The lower mold module includes a lower mold positioning base, and an elastic pressing and routing assembly is provided on one side of the lower mold positioning base. A lifting self-locking limit assembly is provided on one side of the elastic pressing and routing assembly. The elastic mold core clamping insert assembly includes an elastic mold core clamping insert, a first fine-adjusting top block, and a second fine-adjusting top block. The elastic mold core clamping insert, the first fine-adjusting top block, and the second fine-adjusting top block are all disposed on the upper mold body base. The first fine-adjusting top block and the second fine-adjusting top block cooperate with the spring preload adjustment assembly. The lifting self-locking limiting component includes a limiting component carrier seat, which is fixed to the side of the lower mold positioning base. A limiting push block is slidably embedded inside the limiting component carrier seat. A locking spring adjusting screw is provided on one side of the limiting push block. A compression spring is built into the limiting push block. The locking spring adjusting screw cooperates with the limiting push block to adjust the spring force of the compression spring. The elastic downward pressure cable routing assembly includes a lifting sliding seat and a precision linear slide rail. The lifting sliding seat is vertically slidably mounted on the precision linear slide rail. An elastic downward pressure insert is connected to the lifting sliding seat. The side of the lifting sliding seat cooperates with the limiting push block to achieve automatic upward locking. The elastic downward pressure insert has an independent compression spring built in.

2. The high-precision winding locking and positioning forming mold according to claim 1, characterized in that: The spring preload adjustment assembly includes a top block pressure adjustment knob and a spring preload adjustment screw. Both the top block pressure adjustment knob and the spring preload adjustment screw are mounted on the upper mold body base. The first fine-tuning top block cooperates with the top block pressure adjustment knob, and the second fine-tuning top block cooperates with the spring preload adjustment screw.

3. The high-precision winding locking and positioning forming mold according to claim 1, characterized in that: The guide surface at the front end of the limiting push block is an inclined surface, and the limiting push block cooperates with the lifting sliding seat through the inclined surface.

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