Electrical porcelain dry blank servo centering positioning clamp

Abstract

The utility model discloses a kind of electric porcelain dry blank servo centering positioning fixture, including combined type positioning mechanism and lifting device;Combined type positioning mechanism includes servo motor and arc centering clamp rod, at least one pair of arc centering clamp rod is oppositely arranged and is driven by servo motor, for clamping blank head outer circle;Lifting device includes sliding tray and lifting cylinder;Sliding tray is connected to the end of lifting cylinder piston rod by linear guide rail, and sliding tray can move horizontally in the clamping direction of arc centering clamp rod;The utility model can drive arc centering clamp rod clamping blank head outer circle by servo motor, sliding tray can move horizontally, realize the accurate concentric positioning of blank and suction cup, avoid blank to be bent and break, improve centering accuracy and stability, reduce breakage rate, provide reliable guarantee for subsequent glazing process.

Description

Technical Field

[0001] This utility model relates to the field of electrical porcelain manufacturing technology, and in particular to a servo centering and positioning fixture for electrical porcelain blanks. Background Technology

[0002] In the field of electrical porcelain manufacturing, precise positioning of the blank before glazing is a crucial step in ensuring glazing quality. Traditional rotary glazing machines use manual loading and unloading, with the blank being vacuum-adsorbed by a suction head and then moving in a circular motion with the rotary table to complete the glazing process. When there is a horizontal deviation in the placement of the blank head, traditional clamping or manual positioning methods cannot achieve automatic centering of the blank through mechanical structures, resulting in a large concentricity error between the center of the blank head and the center of the suction cup. If a rigid clamping mechanism is used to force centering, the blank will be subjected to a large lateral force in the horizontal direction. Since the dry material of electrical porcelain blanks is brittle and hard with low strength, it is very easy to crack or even break due to uneven stress. If a free placement method without positioning is used, the concentricity between the blank and the suction cup cannot be guaranteed, and problems such as excessive glaze layer overlap and uneven glaze surface are likely to occur during the subsequent glazing process. This structural defect makes it difficult for traditional positioning methods to balance centering accuracy and blank safety, becoming a key bottleneck restricting the improvement of the quality of automated electrical porcelain glazing. Utility Model Content

[0003] The purpose of this utility model is to provide a servo centering and positioning fixture for electric porcelain blanks, so as to solve the problem that traditional positioning methods cannot balance centering accuracy and blank safety.

[0004] This utility model provides a servo centering and positioning fixture for dry porcelain blanks, including a clamping positioning mechanism and a lifting device; the clamping positioning mechanism includes a servo motor and an arc-shaped centering clamp, at least one pair of arc-shaped centering clamps are arranged opposite each other and driven by the servo motor, used to clamp the outer circle of the blank head; the lifting device includes a sliding tray and a lifting cylinder; the sliding tray is connected to the end of the piston rod of the lifting cylinder through a linear guide rail, and the sliding tray can move horizontally in the clamping direction of the arc-shaped centering clamp.

[0005] Furthermore, polyurethane foam is provided on the inner side of the arc-shaped centering clamp.

[0006] Furthermore, there are pallet reset cylinders arranged horizontally on both sides above the lifting cylinder, and pallet reset clamping blocks are provided at the end of the piston rod of the pallet reset cylinder.

[0007] Furthermore, the arc-shaped centering clamping rods form a Φ125mm positioning circle after clamping.

[0008] Furthermore, the lifting stroke of the lifting cylinder is 60mm.

[0009] This invention has the following advantages: It achieves automatic centering of the blank head by using a servo motor-driven arc-shaped centering clamping rod. Combined with a horizontally sliding tray structure, the blank is allowed to adaptively adjust its position with the tray during clamping, avoiding the risk of bending and breakage caused by traditional rigid positioning. The polyurethane foam inside the arc-shaped clamping rod buffers the clamping force, while the tray reset cylinder ensures precise reset of the sliding tray after centering. The overall structure achieves efficient concentric positioning of the blank head and the suction cup center, effectively improving the accuracy and stability of subsequent glazing processes, while reducing the need for manual intervention and the blank breakage rate. Attached Figure Description

[0010] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A perspective view of the servo centering and positioning fixture for the dry porcelain blank provided by this utility model;

[0012] Figure 2 A cross-sectional view of the servo centering and positioning fixture for the dry porcelain blank provided by this utility model.

[0013] Illustrations: A3 - Clamping positioning mechanism; A4 - Lifting device; A6 - Servo motor; A7 - Arc-shaped centering clamp; A8 - Polyurethane foam; A9 - Sliding tray; A10 - Tray reset cylinder; A11 - Tray reset clamp block; A12 - Lifting cylinder; P - Blank. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be pointed out that the following detailed description is illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0015] Please see Figure 1 and Figure 2This utility model provides a servo-driven centering and positioning fixture for electrical porcelain blanks, including a clamping positioning mechanism A3 and a lifting device A4. The clamping positioning mechanism A3 includes a servo motor A6 and an arc-shaped centering clamping rod A7. At least one pair of arc-shaped centering clamping rods A7 are arranged opposite each other and driven by the servo motor A6. They are used to clamp the outer circle of the blank head P. The servo motor A6 provides precise driving force, ensuring stable and accurate clamping action of the arc-shaped centering clamping rods A7. The arc design of the arc-shaped centering clamping rods A7 is adapted to the outer circle of the blank head P, increasing the contact area with the blank head P and improving clamping stability.

[0016] The lifting device A4 includes a sliding tray A9 and a lifting cylinder A12. The sliding tray A9 is connected to the end of the piston rod of the lifting cylinder A12 via a linear guide rail. The sliding tray A9 can move horizontally in the clamping direction of the arc-shaped centering clamp A7. The linear guide rail makes the horizontal movement of the sliding tray A9 smoother and reduces frictional resistance. The lifting cylinder A12 can provide stable power for the lifting of the sliding tray A9, realizing the position adjustment of the workpiece P in the height direction.

[0017] The inner side of the arc-shaped centering clamping rod A7 is provided with a 3mm polyurethane sponge A8. The polyurethane sponge A8 has good elasticity and cushioning performance. When clamping the head of the blank P, it can not only avoid damage to the surface of the blank P, but also increase the friction and prevent the blank P from sliding during the clamping process.

[0018] The upper sides of the lifting cylinder A12 have relatively horizontally arranged tray reset cylinders A10. The end of the piston rod of the tray reset cylinder A10 is provided with a tray reset clamping block A11. The tray reset cylinder A10 and the tray reset clamping block A11 cooperate with each other to enable the sliding tray A9 to be accurately reset after the centering is completed, so as to prepare for the next centering operation.

[0019] In this embodiment, the arc-shaped centering clamping rod A7 clamps together to form a Φ125mm positioning circle. This size design can accommodate the outer circle of the head of the 550kN electric porcelain blank, ensuring the accuracy of centering and positioning. The lifting stroke of the lifting cylinder A12 is 60mm. This stroke can meet the position requirements of the blank P during the lifting process, so that the head of the blank P can accurately enter the clamping positioning mechanism A3 for centering operation.

[0020] The working process of the servo centering and positioning fixture for electrical porcelain blanks is as follows: First, the blank P is transported to the sliding tray A9. The lifting cylinder A12 is activated, driving the sliding tray A9 to rise and transporting the head of the blank P to the clamping position of the clamping positioning mechanism A3. Next, the servo motor A6 drives the arc-shaped centering clamping rod A7 to move relative to each other, clamping the outer circle of the head of the blank P. During the clamping process, since the sliding tray A9 can move horizontally in the clamping direction of the arc-shaped centering clamping rod A7, the blank P can adaptively adjust its position in the horizontal direction, avoiding bending force caused by rigid clamping. At the same time, the polyurethane sponge A8 on the inner side of the arc-shaped centering clamping rod A7 plays a buffering and protective role. After centering is completed, the arc-shaped centering clamping rod A7 is released, and the lifting cylinder A12 drives the sliding tray A9 to descend. At this time, the tray reset cylinder A10 drives the tray reset clamping block A11 to move, so that the sliding tray A9 is reset to the initial position, waiting for the centering operation of the next blank P.

[0021] This invention achieves precise clamping by driving the arc-shaped centering clamping rod A7 with a servo motor A6. Combined with the horizontally movable sliding tray A9, it effectively avoids the problem of the blank being easily damaged by bending force in the traditional positioning method. The polyurethane sponge A8 on the inner side of the arc-shaped centering clamping rod A7 further protects the surface of the blank P. The tray reset cylinder A10 and the tray reset clamping block A11 ensure the precise reset of the sliding tray A9. The overall structure improves the accuracy and stability of the centering and positioning of the electric porcelain blank head, reduces the blank breakage rate, and provides a reliable positioning basis for the subsequent glazing process.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in sequences other than those illustrated or described herein.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A servo-driven centering and positioning fixture for dry porcelain blanks, characterized in that, include: The clamping positioning mechanism (A3) and the lifting device (A4) are described. The clamping positioning mechanism (A3) includes a servo motor (A6) and an arc-shaped centering clamp (A7). At least one pair of arc-shaped centering clamps (A7) are arranged opposite to each other and driven by the servo motor (A6) for clamping the outer circle of the head of the blank (P). The lifting device (A4) includes a sliding tray (A9) and a lifting cylinder (A12). The sliding tray (A9) is connected to the end of the piston rod of the lifting cylinder (A12) via a linear guide rail. The sliding tray (A9) can move horizontally in the clamping direction of the arc-shaped centering clamp (A7).

2. The servo-aligned positioning fixture for electrical porcelain blanks as described in claim 1, characterized in that, The inner side of the arc-shaped centering clamp (A7) is provided with polyurethane foam (A8).

3. The servo-aligned positioning fixture for electrical porcelain blanks as described in claim 1, characterized in that, The lifting cylinder (A12) has two horizontally arranged tray reset cylinders (A10) on its upper sides, and the piston rod of the tray reset cylinder (A10) is provided with a tray reset clamp (A11).

4. The servo-aligned positioning fixture for electrical porcelain blanks as described in claim 1, characterized in that, The arc-shaped centering clamp (A7) forms a Φ125mm positioning circle after clamping.

5. The servo-aligned positioning fixture for electrical porcelain blanks as described in claim 1, characterized in that, The lifting stroke of the lifting cylinder (A12) is 60mm.

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