Glass ceramic block hand flat fixing device for cutting

Abstract

The utility model belongs to the technical field of glass ceramic block cutting, and discloses a glass ceramic block hand flat fixing device for cutting. Comprising a first mold and a second mold, the first mold is provided with a plurality of containing cavities matched with a glass ceramic block in shape and size, the depth of each cavity is smaller than the height of the glass ceramic block, the second mold is provided with a plurality of positioning cavities matched with a metal hand flat in shape and size, and the depth of each positioning cavity is smaller than the length of the metal hand flat. A limiting unit is movably arranged on the protruding part, placed behind the positioning cavity, of the metal hand flat, and the limiting unit is a limiting clamp or a locking bolt. According to the utility model, the metal hand flat is accurately bonded with the microcrystalline glass block with a fixed shape, and the device is simple, convenient and high in assembly efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinable microcrystalline glass blocks, and in particular relates to a hand-flattened fixing device for machinable microcrystalline glass blocks. Background Art

[0002] Lithium disilicate glass-ceramics has excellent machinability, mechanical properties, light transmittance and chemical stability, and is the most promising dental restoration material for clinical applications. The material produced for tooth defect repair is an inorganic material block with a fixed shape, on which a metal hand flat is glued for use by a special tooth cutting machine. This fixed-shaped material block has long and short sides, and the metal hand flat has a square notch. The notch of the metal hand flat is required to be exactly in the middle of the long side of the fixed-shaped material block, and the center of the fixed-shaped material block is required to be consistent with the center of the metal hand flat, so as to meet the use requirements of the special tooth cutting machine.

[0003] Currently, there are fully automatic shaping machines in the prior art to complete the position alignment, but because the fully automatic shaping machines are expensive, it is usually done manually by drawing lines on the material block and gluing the metal hand flat. Manual gluing is inefficient and easily causes position deviation.

[0004] Therefore, it is necessary to research and develop a device that is suitable for bonding the microcrystalline glass block to the metal hand during manual operation. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a hand-flat fixing device for a cuttable microcrystalline glass block, which solves the problem of fast and accurate bonding of a microcrystalline glass block and a metal hand-flat in the existing manual operation.

[0006] The purpose of the utility model is achieved through the following solutions:

[0007] A device for fixing a hand-bend of a cuttable microcrystalline glass block comprises a first mold and a second mold. The first mold is provided with a plurality of accommodating cavities which are adapted to the shape and size of the microcrystalline glass block, and the depth of the cavity is less than the height of the microcrystalline glass block. The second mold is provided with a plurality of positioning cavities which are adapted to the shape and size of a metal hand-bend, the depth of the positioning cavity is less than the length of the metal hand-bend, and a limiting unit is movably provided on the protruding part of the metal hand-bend after it is placed in the positioning cavity. The limiting unit is a limiting clip or a locking bolt.

[0008] Furthermore, the metal hand grip includes a fixed end and a handle rod end, the fixed end and the handle rod end are integrally formed, the fixed end is provided with a square notch, and the insertion end of the positioning cavity is provided with a protrusion that matches the square notch.

[0009] Furthermore, the cross section of the accommodating cavity is rectangular, and the direction of the long side is perpendicular to the protrusion.

[0010] Furthermore, the first mold and the second mold are detachably connected, and the accommodating cavity and the positioning cavity cooperate to form a mold cavity.

[0011] Furthermore, positioning pins are provided at both ends of the first mold and the second mold, and the first mold and the second mold are fixed by the positioning pins.

[0012] Furthermore, the limiting clamp is a dovetail clamp, and an anti-slip pad is provided on the inner side wall of the dovetail clamp supporting seat.

[0013] Furthermore, the handle end of the metal hand flat is provided with a thread that cooperates with the locking bolt.

[0014] The utility model provides a cutting microcrystalline glass block hand-flat fixing device, which consists of a first mold and a second mold. A plurality of microcrystalline glass blocks can be placed on the first mold at one time, and a plurality of metal hand-flats can be placed on the second mold at one time and can be accurately positioned. The first mold and the second mold are matched in place by positioning pins, and the limiting unit is released. After the microcrystalline glass block and the metal hand-flat are bonded, the positioning pins are released, and the microcrystalline glass block and the metal hand-flat bonding piece can be completely taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the first mold of the utility model.

[0016] Figure 2 for Figure 1 sectional view of .

[0017] Figure 3 It is a structural schematic diagram of the second mold of the utility model.

[0018] Figure 4 for Figure 3 sectional view of .

[0019] Figure 5 This is a schematic diagram of the structure after the first mold and the second mold are assembled.

[0020] Figure 6 It is a schematic diagram of the structure of the limiting unit in the first embodiment. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the examples and drawings, but the embodiments of the present invention are not limited thereto. If no specific conditions are specified in the examples, the process is carried out according to conventional conditions or conditions recommended by the manufacturer.

[0022] The technical solution of the present application is described in detail below using embodiments.

[0023] Embodiment 1

[0024] like Figure 1-Figure 4 A device for fixing a hand-flat of a cuttable microcrystalline glass block comprises a first mold 1 and a second mold 2. The first mold is provided with a plurality of accommodating cavities 11 which are adapted to the shape and size of a microcrystalline glass block 5, and the depth of the cavity is less than the height of the microcrystalline glass block. The second mold is provided with a plurality of positioning cavities 21 which are adapted to the shape and size of a metal hand-flat. After the metal hand-flat is placed in the positioning cavity, a limiting unit is provided on the protruding part of the handle rod. The limiting unit adopts a dovetail clamp 3. The inner side wall of the dovetail clamp support seat is provided with an anti-slip pad 31, which can firmly fix the hand-flat. See Figure 6 .

[0025] The metal handle 4 of this embodiment includes a fixed end 41 and a handle end 42, wherein the fixed end and the handle end are integrally formed, a square notch is provided on the fixed end, and a protrusion 22 matching the square notch is provided on the insertion end of the positioning cavity.

[0026] The cross section of the accommodating cavity in this embodiment is rectangular, and the direction of the long side is perpendicular to the protrusion.

[0027] In this embodiment, the first mold and the second mold are detachably connected, and the accommodating cavity and the positioning cavity cooperate to form a mold cavity.

[0028] In this embodiment, positioning pins are arranged at both ends of the first mold and the second mold, and the first mold and the second mold are fixed by the positioning pins.

[0029] See also Figure 5 Taking the first embodiment as an example, the working method of the device includes the following steps:

[0030] 1) Make a first mold according to the shape of the microcrystalline glass block. It can hold ten pieces at a time, and make sure that the microcrystalline glass block protrudes about 3mm after being placed in it.

[0031] 2) Make a second mold according to the shape of the metal hand flat, and make sure the metal hand flat protrudes about 1mm after being placed in it.

[0032] 3) The second mold made has a convex shape, which matches the flat recess of the metal hand and is perpendicular to the microcrystalline glass block with the long side of the first mold.

[0033] 4) In order to ensure that the sample center of the first mold is consistent and the notch of the metal hand is perpendicular to the long side of the microcrystalline glass block, four positioning pins 6 are set on the edge of the mold, so that the position of the first mold is fixed and there will be no misalignment when bonding. The qualified rate of the product is guaranteed.

[0034] 5) When bonding, first put the glass-ceramic block into the first mold, and the metal hand into the second mold, and use the limit unit to clamp the metal hand above the second mold so that it will not slip off, then apply a strong adhesive on the glass-ceramic block, and then put the second mold along the positioning pin and press the metal hand onto it. After two hours, it will be firmly bonded. Then, loosen the clamp and take out the first mold.

[0035] Embodiment 2

[0036] It is substantially the same as the first embodiment, except that a thread is provided at the end of the handle rod to cooperate with a locking bolt to form a limiting unit to fix the metal.

[0037] The utility model provides a hand-flat fixing device for a cuttable microcrystalline glass block, which consists of a first mold and a second mold. A plurality of microcrystalline glass blocks can be placed on the first mold at one time, and a plurality of metal hand-flats can be placed on the second mold at one time and can be accurately positioned. The first mold and the second mold are matched in place by positioning pins, and the limiting unit is released. After the microcrystalline glass block and the metal hand-flat are bonded, the positioning pins are released, and the microcrystalline glass block and the metal hand-flat bonding piece can be completely taken out. The device is simple and convenient, and has high assembly efficiency.

[0038] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A hand-flattening and fixing device for a machinable microcrystalline glass block, characterized in that: It comprises a first mould and a second mould which are detachably connected, the first mould is provided with a plurality of accommodating cavities which are matched with the shape and size of the microcrystalline glass block, and the depth of the cavity is less than the height of the microcrystalline glass block, the second mould is provided with a plurality of positioning cavities which are matched with the shape and size of the metal hand flat, the depth of the positioning cavity is less than the length of the metal hand flat, and a limiting unit is movably provided on the protruding part after the metal hand flat is placed in the positioning cavity, and the limiting unit is a limiting clamp or a locking bolt; the metal hand flat comprises a fixed end and a handle end, the fixed end and the handle end are integrally formed, a square notch is provided on the fixed end, and a protrusion which is matched with the square notch is provided on the insertion end of the positioning cavity; the cross section of the accommodating cavity is a rectangle, and the direction of the long side is perpendicular to the protrusion.

2. The hand-flattening and fixing device for a machinable glass-ceramic block according to claim 1, characterized in that: Positioning pins are arranged at both ends of the first mold and the second mold, and the first mold and the second mold are fixed by the positioning pins.

3. The hand-flattening and fixing device for a machinable glass-ceramic block according to claim 2, characterized in that: The limiting unit is a dovetail clamp, and an anti-slip pad is arranged on the inner side wall of the dovetail clamp supporting seat.

4. The hand-flattening and fixing device for a machinable glass-ceramic block according to claim 1, characterized in that: The handle rod end of the metal hand flat is provided with a thread matched with a locking bolt.

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