Burning bearing plate and burning bearing device of ceramic chopper

Abstract

The utility model relates to the technical field of sintering equipment, and discloses a setter plate and a setter device of a ceramic chopper, the ceramic chopper comprises a cylindrical part and a conical part arranged at one end of the cylindrical part, and the setter plate is provided with a positioning hole and a positioning groove. The positioning hole comprises a cylindrical section used for installing the cylindrical part and a conical section used for installing the conical part, the upper end of the cylindrical section penetrates through the upper surface of the load bearing plate, the conical section is provided with a large head and a small head, the lower end of the cylindrical section is communicated with the large head, the small head penetrates through the lower surface of the load bearing plate downwards, and the lower end of the conical section is communicated with the lower surface of the load bearing plate. The multiple positioning holes and the multiple positioning grooves are formed, and the positioning grooves are distributed in the upper surface and the lower surface of the load bearing plate. According to the sintering bearing plate and the sintering bearing device of the ceramic chopper, the deformation of the conical part in the sintering process of the ceramic chopper is reduced, the sintering forming precision is improved, and the subsequent processing amount is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering equipment technical field especially relates to a kind of ceramic wedge knife's supporting plate and supporting device. BACKGROUND

[0002] Ceramic wedge knife is the soldering tool of wire bonding in microelectronic processing process, ceramic wedge knife is used for gold wire, silver wire, copper wire, alloy wire bonding welding, is one of the core components of LED, discrete device and IC semiconductor packaging industry hot-pressing ultrasonic welding wire bonding.Ceramic wedge knife has extremely high dimensional accuracy requirement, sintering process needs to guarantee certain dimensional accuracy, to reduce the grinding amount.Current sintering method is to place ceramic wedge knife blank on sawtooth supporting plate, at this time, conical portion is in suspended state, it is easy to lead to conical portion deformation due to gravity in sintering shrinkage process, the deformation of conical portion makes inner hole position offset, leads to the coaxiality of inner hole and outer cylinder to be poor, impact wedge knife use. SUMMARY

[0003] The utility model discloses a kind of ceramic wedge knife's supporting plate and supporting device, reduce the deformation of conical portion in wedge knife sintering process, improve the precision of sintering formation, reduce the processing amount of subsequent.

[0004] To achieve the above object, the first aspect of the utility model provides a kind of ceramic wedge knife's supporting plate, the ceramic wedge knife includes cylindrical portion and is located at the conical portion of the cylindrical portion one end, the supporting plate has positioning hole and positioning slot, the positioning hole includes the cylindrical segment for installing the cylindrical portion and the conical segment for installing the conical portion, the upper end of the cylindrical segment penetrates the upper surface of the supporting plate, the conical segment has big head and small head, the lower end of the cylindrical segment is communicated with the big head, the small head penetrates the lower surface of the supporting plate downwards, the positioning hole and the positioning slot are all provided with multiple, the positioning slot is distributed on the upper and lower surfaces of the supporting plate.

[0005] In some embodiments, the diameter of the big head is equal to the diameter of the cylindrical segment.

[0006] In some embodiments, the length ratio of the cylindrical segment to the conical segment is in the range of 0.5-2.

[0007] In some embodiments, the diameter of the cylindrical segment is D1, the diameter of the cylindrical portion is D2, then 0.02mm≤(D1-D2)≤1mm is satisfied.

[0008] In some embodiments, the taper angle of the conical segment is α1, the taper angle of the conical portion is α2, then 10°<α2<60° is satisfied, and |α1-α2|≤5°.

[0009] In some embodiments, the inner wall roughness R of the positioning hole is ≤6.3 μm. a ≤6.3 μm.

[0010] In some embodiments, the plurality of positioning holes are arranged in an equidistant array, and the distance between two adjacent positioning holes is greater than or equal to twice the diameter of the cylindrical segment.

[0011] In some embodiments, the plurality of positioning grooves are distributed at the four corners of the supporting plate.

[0012] The second aspect of the utility model provides a kind of ceramic wedge knife's supporting device, including support block and the supporting plate of first aspect, the support block is equipped with multiple and one-to-one in positioning groove It is set, the supporting plate is equipped with multiple and from below to above by the support block is stacked distribution.

[0013] In some embodiments, the height of the support block is H1, the maximum height of the ceramic wedge knife exposed to the positioning hole is H2, and H1-3H2≥2mm is satisfied.

[0014] The utility model provides a kind of ceramic wedge knife's supporting plate and supporting device, compared with prior art, its beneficial effect lies in:

[0015] Positioning hole is arranged on the supporting plate, the positioning hole includes the cylindrical segment for installing the cylindrical part and the tapered segment for installing the tapered part, the upper end of the cylindrical segment penetrates the upper surface of the supporting plate, the tapered segment has big head and small head, the lower end of the cylindrical segment is communicated with the big head, the small head penetrates the lower surface of the supporting plate downwards, the ceramic wedge knife can be supported and positioned as a whole by positioning hole, so that the deformation of tapered part in ceramic wedge knife sintering process is reduced, the precision of sintering forming is improved, and the processing amount of subsequent process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of ceramic wedge knife's supporting plate's overhead structure schematic diagram for an embodiment of the utility model.

[0017] Figure 2 For Figure 1 The uniformly distributed section along the direction of A is enlarged structural schematic diagram.

[0018] Figure 3 The utility model provides a kind of ceramic wedge knife's supporting plate's overhead structure schematic diagram for an embodiment of the utility model.

[0019] Figure 4 The utility model provides a kind of ceramic wedge knife's supporting device's three-dimensional structure schematic diagram for another embodiment of the utility model.

[0020] In the figure: 1, the supporting plate; 11, the positioning hole; 111, the cylindrical section; 112, the tapered section; 12, the positioning groove; 2, the ceramic wedge; 21, the cylindrical part; 22, the tapered part; 3, the supporting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0022] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must be in a particular orientation, constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. That is, the features with "first" and "second" can explicitly or implicitly include one or more of the features. In addition, unless otherwise stated, the meaning of "multiple" is two or more.

[0023] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0024] As Figures 1-3 shown, the ceramic wedge supporting plate 1 provided by an embodiment of the present application, the ceramic wedge 2 includes a cylindrical part 21 and a tapered part 22 arranged at one end of the cylindrical part 21, the supporting plate 1 has positioning holes 11 and positioning grooves 12, the positioning hole 11 includes a cylindrical section 111 for mounting the cylindrical part 21 and a tapered section 112 for mounting the tapered part 22, the upper end of the cylindrical section 111 penetrates the upper surface of the supporting plate 1, the tapered section 112 has a large end and a small end, the lower end of the cylindrical section 111 communicates with the large end, and the small end penetrates the lower surface of the supporting plate 1 downward, the positioning hole 11 and the positioning groove 12 are both provided with multiple ones, and the positioning grooves 12 are distributed on the upper and lower surfaces of the supporting plate 1.

[0025] In use, the tapered part 22 of the ceramic wedge 2 is inserted downward into the tapered section 112 of the positioning hole 11, and the cylindrical part 21 of the ceramic wedge 2 is located in the cylindrical section 111 of the positioning hole 11.

[0026] Based on the above structure, the positioning hole 11 of the supporting plate 1 can support and position the whole ceramic wedge 2, thereby reducing the deformation of the tapered portion 22 during the sintering process of the ceramic wedge 2, improving the sintering precision, and reducing the amount of subsequent processing.

[0027] In some embodiments, the diameter of the large head is equal to the diameter of the cylindrical segment 111. This maintains a smooth transition between the tapered segment 112 and the cylindrical segment 111.

[0028] In some embodiments, the length of the cylindrical segment 111 is 0.5-2 times the length of the tapered segment 112. The ratio is adjusted according to the actual size of the ceramic wedge 2.

[0029] In some embodiments, the diameter of the cylindrical segment 111 is D1, and the diameter of the cylindrical portion 21 is D2, which satisfies 0.02mm≤(D1-D2)≤1mm. It should be noted that when (D1-D2)<0.02mm, the gap between the cylindrical segment 111 and the cylindrical portion 21 is too small, which can easily scratch the surface of the ceramic wedge 2 when inserting the ceramic wedge 2, and the heating can cause the ceramic wedge 2 to expand, thereby causing the cylindrical portion 21 to contact the cylindrical segment 111, which can cause the ceramic wedge 2 to be cracked; when (D1-D2)>1mm, the gap between the cylindrical portion 21 and the cylindrical segment 111 is too large, which can easily shake and tilt the ceramic wedge 2, which is not conducive to positioning and supporting the ceramic wedge 2, and can increase the deformation amount of the ceramic wedge 2 during the sintering process.

[0030] In some embodiments, the taper angle of the tapered segment 112 is α1, and the taper angle of the tapered portion 22 is α2, which satisfies 10°<α2<60°, and |α1-α2|≤5°. It should be noted that when |α1-α2|>5°, the angle difference between the tapered segment 112 and the tapered portion 22 is too large, the positioning effect is poor, the ceramic wedge 2 can shake and tilt, and the deformation amount of the ceramic wedge 2 during the sintering process can be increased.

[0031] In some embodiments, the roughness R a of the inner wall of the positioning hole 11 is ≤6.3μm. This keeps the inner wall of the positioning hole 11 smooth and avoids scratching the surface of the ceramic wedge 2.

[0032] In some embodiments, the plurality of positioning holes 11 are arranged in an equidistant array, and the distance between two adjacent positioning holes 11 is greater than or equal to twice the diameter of the cylindrical segment. This maintains a compact structure while the ceramic wedges 2 do not interfere with each other during the sintering process.

[0033] In some embodiments, the plurality of positioning grooves 12 are distributed at the four corners of the supporting plate 1. This is used for positioning and installing the four corners of the supporting plate 1.

[0034] As Figure 4As shown, the utility model discloses another embodiment provides the ceramic split knife's bearing device, including support block 3 and some embodiment provides bearing plate 1, support block 3 is equipped with multiple and one-to-one correspondence is arranged in positioning groove 12, bearing plate 1 is equipped with multiple and is stacked distribution through support block 3 from bottom to top. Through the stacked use of multiple bearing plate 1, improve the sintering efficiency of ceramic split knife 2, and bearing plate 1 and support block 3 can be repeatedly used.

[0035] In some embodiments, the height of support block 3 is H1, the maximum height of ceramic split knife 2 exposed to positioning hole 11 is H2, both ends of ceramic split knife 2 are exposed to positioning hole 11, so the maximum height H2 is selected as the maximum value of the two exposed heights, and H1-3H2≥2mm is satisfied. To keep the sintered ceramic split knife 2 between each layer of bearing plate 1 from interfering with each other.

[0036] Based on the above structure, the positioning hole 11 of the bearing device can support and position the whole ceramic split knife 2, thereby reducing the deformation of the conical part 22 during the sintering process of the ceramic split knife 2, improving the precision of sintering forming, and reducing the amount of subsequent processing.

[0037] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and substitutions, these improvements and substitutions also should be considered as the protection scope of the utility model.

Claims

1. A supporting plate for a ceramic cleaving knife, the ceramic cleaving knife comprising a cylindrical portion and a tapered portion provided at one end of the cylindrical portion, characterized in that, The supporting plate is provided with positioning holes and positioning grooves, the positioning holes include a cylindrical section for mounting the cylindrical part and a tapered section for mounting the tapered part, the upper end of the cylindrical section penetrates the upper surface of the supporting plate, the tapered section has a large head and a small head, the lower end of the cylindrical section communicates with the large head, and the small head penetrates the lower surface of the supporting plate downward, and the positioning holes and the positioning grooves are provided in plurality.

2. The ceramic blade support plate of claim 1, wherein, The diameter of the large head is equal to the diameter of the cylindrical section.

3. The ceramic blade support plate of claim 1, wherein, The length ratio of the cylindrical section to the tapered section ranges from 0.5 to 2.

4. The ceramic blade support plate of claim 1, wherein, The diameter of the cylindrical section is D1, the diameter of the cylindrical part is D2, and 0.02mm≤(D1-D2)≤1mm is satisfied.

5. The ceramic blade support plate of claim 1, wherein, The taper angle of the tapered section is α1, the taper angle of the tapered part is α2, and 10°<α2<60° and |α1-α2|≤5° are satisfied.

6. The ceramic blade support plate of claim 1, wherein, The inner wall roughness R a ≤ 6.3 μm.

7. The ceramic blade support plate of claim 1, wherein, The plurality of positioning holes are arranged in equidistant array, and the distance between two adjacent positioning holes is equal to or greater than twice the diameter of the cylindrical section.

8. The ceramic blade support plate of claim 1, wherein, The plurality of positioning grooves are distributed at the four corners of the supporting plate.

9. A ceramic chopper blade supporting device, characterized by comprising: The supporting block is provided in plurality and is arranged in the positioning groove one by one, and the supporting plate is provided in plurality and is stacked and distributed from bottom to top through the supporting blocks.

10. The apparatus according to claim 9, wherein The height of the supporting block is H1, the maximum height of the ceramic wedge exposed to the positioning hole is H2, and H1-3H2≥2mm is satisfied.

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