Lateral jacking tool clamp for cold isostatic pressing green body

Abstract

The utility model relates to a side jacking tool clamp of a cold isostatic pressing blank, in particular to the technical field of cold isostatic pressing, and the side jacking tool clamp of the cold isostatic pressing blank comprises a base plate, at least two positioning pieces and at least three side face jacking pieces, with the center of the base plate as the reference, the diameter of the circle where the positioning piece is located is smaller than that of the circle where the side face jacking piece is located; and a rubber elastic layer is arranged at the position where the side face jacking piece is in contact with the cold isostatic pressing green body. According to the side jacking tool clamp for the cold isostatic pressing green body, the locating piece and the side jacking piece are matched, the cold isostatic pressing green body is efficiently clamped and can be efficiently located, meanwhile, the side clamping mode is adopted, the problem that the green body cracks due to the fact that a pressing plate is adopted for fixing is solved, and the service life of the green body is prolonged. And the processing efficiency of the aluminum nitride cold isostatic pressing green body is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold isostatic pressing technical field, specifically relates to a cold isostatic pressing body's side top frock clamp. BACKGROUND

[0002] At present, aluminum nitride ceramic material has excellent thermal, mechanical and electrical properties, such as: high thermal conductivity, low dielectric constant, the linear expansion coefficient matched with silicon, excellent electrical insulation and high specific strength etc. In the field of semiconductors, aluminum nitride ceramic is often used as a heating disc, and its forming process is: first, the powder is molded, and then the molded green body is packaged, and then cold isostatic pressing is carried out.

[0003] The green body of cold isostatic pressing usually needs to be milled for primary machining to remove excess material for efficient use of the material. For example, CN107814578A discloses a research on aluminum nitride ceramic preparation process. Aluminum nitride powder is used as the base, and a certain amount of carbon powder, yttrium oxide powder and lanthanum oxide powder are added. The aluminum nitride powder, yttrium oxide powder, lanthanum oxide powder and acid-washed carbon powder are put into a ball mill for ball milling and mixing. After sieving and aging for a certain time, isostatic pressing is carried out. Then, the rough green body after roughing is sintered into an aluminum nitride ceramic body under high-temperature vacuum conditions. According to the size and technical requirements of the product, the ceramic body is finished.

[0004] CN111673157A discloses a milling cutter for machining aluminum nitride ceramic green body structure, which includes a handle and a cutter body formed at one end of the handle. The cutter body of the structure machining milling cutter includes: at least two first cutting edges and at least two second cutting edges, each of the first cutting edge and the second cutting edge extends spirally to form a left-handed arc-shaped edge with the handle rotation axis as the axis, the first cutting edge and the second cutting edge are arranged at intervals, and the adjacent first cutting edge and second cutting edge form a powder discharge groove recessed towards the handle rotation axis. With the handle rotation axis as the axis, the distance between the blade sharp corners of the two symmetrically arranged first cutting edges is greater than the distance between the blade sharp corners of the two symmetrically arranged second cutting edges. Thus, the overall strength of the blade is ensured, and the blade is not easily damaged during cutting, so that metal residues are not left in the material, thereby ensuring the quality of the product after sintering.

[0005] Currently, when milling aluminum nitride cold isostatic pressing green body, a clamp is needed to cooperate to prevent the cold isostatic pressing green body from moving during processing, which causes damage to the clamp and makes it unusable. However, the current clamp cannot efficiently position the cold isostatic pressing green body, so repeated positioning is needed, and the cold isostatic pressing green body cracks due to the use of a pressing plate. UTILITY MODEL CONTENTS

[0006] In view of the problems in the prior art, the utility model discloses a side top tooling fixture of cold isostatic pressing blank to solve the low positioning efficiency of cold isostatic pressing blank, and the cracking of cold isostatic pressing blank caused by the fixing of pressing plate.

[0007] To achieve this purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a side top tooling fixture of cold isostatic pressing blank, the side top tooling fixture of cold isostatic pressing blank includes:

[0009] At least 2 positioning members and at least 3 side face top holders are arranged on the base plate.

[0010] The diameter of the circle where the positioning member is located is less than the diameter of the circle where the side face top holder is located.

[0011] The side face top holder is provided with a rubber elastic layer at the position where it contacts the cold isostatic pressing blank.

[0012] The side top tooling fixture of cold isostatic pressing blank provided by the utility model realizes efficient clamping of the cold isostatic pressing blank by the cooperation of the positioning member and the side face top holder, can realize efficient positioning of the cold isostatic pressing blank, and avoids the cracking of the blank caused by the fixing of the pressing plate by adopting the side clamping mode, thereby ensuring the processing efficiency of the aluminum nitride cold isostatic pressing blank.

[0013] As a preferred technical scheme of the utility model, the positioning member cooperates with the positioning hole of the cold isostatic pressing blank.

[0014] The cross-sectional shape of at least i positioning members in the at least 2 positioning members is different, and i is less than the total number of the positioning members.

[0015] As a preferred technical scheme of the utility model, the positioning member is connected with the base plate by a pin member or a bolt.

[0016] As a preferred technical scheme of the utility model, the side face top holder is connected with the base plate by a bolt.

[0017] As a preferred technical scheme of the utility model, the side face top holder is connected with the bolt through a through groove.

[0018] As a preferred technical scheme of the utility model, the length of the through groove is greater than the diameter of the bolt.

[0019] As a preferred technical scheme of the utility model, the side face top holder is a detachable member.

[0020] As a preferred technical scheme of the utility model, the thickness of the rubber elastic layer is 5-10 mm.

[0021] As the preferred technical scheme of the utility model, the side surface top holding piece and the rubber elastic layer are connected through the adhesive.

[0022] As the preferred technical scheme of the utility model, the flatness of the base plate is ≤0.1mm.

[0023] Compared with the prior art scheme, the utility model has the following beneficial effects:

[0024] The tool clamp provided by the utility model realizes the positioning effect through the positioning piece, and then realizes the side clamping of the cold isostatic pressing blank body through the side surface top holding piece, so that the blank body cracking problem caused by the pressing plate fixing is avoided, and the processing efficiency of the aluminum nitride cold isostatic pressing blank body is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the schematic view of the side top tool clamp of the cold isostatic pressing blank body provided by the utility model embodiment.

[0026] In the drawing: 100-base plate, 200-positioning piece, 300-side surface top holding piece.

[0027] The utility model will be further described in detail below. However, the following examples are only simple examples of the utility model, and do not represent or limit the protection scope of the utility model, and the protection scope of the utility model is subject to the claims. DETAILED DESCRIPTION

[0028] In order to better illustrate the utility model and facilitate the understanding of the technical scheme of the utility model, the typical but non-limiting embodiments of the utility model are as follows:

[0029] The embodiment provides a kind of side top tool clamp of cold isostatic pressing blank body, as shown in Figure, the side top tool clamp of cold isostatic pressing blank body includes: Figure 1

[0030] Base plate 100, at least 2 positioning pieces 200 and at least 3 side surface top holding pieces 300 are arranged on base plate 100;

[0031] With base plate 100 center as reference, the diameter of the circle where the positioning piece 200 is located is less than the diameter of the circle where the side surface top holding piece 300 is located;

[0032] The side surface top holding piece 300 is provided with a rubber elastic layer at the position where it contacts the cold isostatic pressing blank body.

[0033] Among them, the positioning piece 200 cooperates with the positioning hole of the cold isostatic pressing blank body.

[0034] ​The cross-sectional shape of at least i positioning members 200 of the at least 2 positioning members 200 is different, i≤total number of positioning members 200.

[0035] In the utility model, the positioning member 200 and the positioning hole that are not used can be matched with high precision by selecting a specific shape, such as using three positioning members 200, corresponding to three positioning holes, one positioning member 200 is a cylindrical positioning member 200, corresponding to a round hole, the second positioning member 200 is a cuboid positioning member 200, corresponding to a rectangular hole, the third positioning member 200 is a triangular prism positioning member 200, corresponding to a triangular hole, and the specific matching of the positioning member 200 and the positioning hole is realized in a one-to-one correspondence, and the positioning accuracy is improved.

[0036] The positioning member 200 is connected with the base plate 100 by a pin or a bolt.

[0037] In the utility model, the connection between the positioning member 200 and the base plate 100 can also be achieved by bonding or welding, but welding or bonding is not conducive to the replacement of the positioning member 200, and different positioning members 200 are used for different positioning requirements, preferably the bolt connection mode is used, that is, a thread is designed on the positioning member 200, and then the positioning member 200 is fixedly connected with the matching threaded hole on the base plate 100, and the positioning member 200 can be replaced by being simply disassembled.

[0038] The side surface top holding member 300 is connected with the base plate 100 by a bolt.

[0039] The side surface top holding member 300 is connected with the bolt through a through groove.

[0040] In the utility model, the side surface top holding member 300 is matched with the bolt through a groove, the distance between the side surface top holding member 300 and the cold isostatic pressing blank can be finely adjusted, and the cold isostatic pressing blank can be prevented from being excessively pressed while being clamped.

[0041] The length of the through groove is greater than the diameter of the bolt.

[0042] In the utility model, the length of the through groove refers to the length of the through groove along the length direction of the side surface top holding member 300. The width of the through groove is slightly greater than the diameter of the bolt, and the bolt can move along the length direction of the through groove.

[0043] The side surface top holding member 300 is a detachable member.

[0044] The detachable design of the side face top holding piece 300 can match different cold isostatic pressing blank bodies by detaching the side face top holding piece 300, and then the side face top holding piece 300 can clamp different cold isostatic pressing blank bodies, and the use range of the side face top tool clamp is widened.

[0045] The thickness of the rubber elastic layer is 5-10 mm, for example, can be 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm or 10 mm, but is not limited to the listed values, and other unlisted values within the range also meet the requirements.

[0046] The connecting mode of the side face top holding piece 300 and the rubber elastic layer includes adhesion.

[0047] In the utility model, adhesion refers to fixing and connecting different objects by using adhesion materials known in the art, such as glue and the like.

[0048] The flatness of the substrate 100 is ≤0.1 mm.

[0049] In the utility model, controlling the flatness of the substrate 100 is beneficial to avoid the problem that the cold isostatic pressing blank body cracks in the processing process due to the unevenness of the substrate 100.

[0050] Further, in order to illustrate the good clamping effect that the side top tool clamp for the cold isostatic pressing blank body provided by the utility model can achieve, the following actual examples are used for exemplary illustration, and the details are as follows:

[0051] Embodiment 1

[0052] The embodiment provides a side top tool clamp for a cold isostatic pressing blank body, which comprises:

[0053] A substrate 100, three positioning pieces 200 and three side face top holding pieces 300 arranged on the substrate 100;

[0054] The diameter of the circle where the positioning piece 200 is located is less than the diameter of the circle where the side face top holding piece 300 is located, with the center of the substrate 100 as the reference.

[0055] The side face top holding piece 300 is provided with a rubber elastic layer at the position where the side face top holding piece 300 contacts the cold isostatic pressing blank body.

[0056] The positioning piece 200 cooperates with the positioning hole of the cold isostatic pressing blank body.

[0057] The cross-sectional shapes of the three positioning pieces 200 are different.

[0058] In this embodiment, the unused positioning member 200 and the positioning hole are matched by a specific shape to achieve high-precision matching. Three positioning members 200 are used, corresponding to three positioning holes. One positioning member 200 is a cylindrical positioning member 200, corresponding to a circular hole. The second positioning member 200 is a cuboid positioning member 200, corresponding to a rectangular hole. The third positioning member 200 is a triangular prism positioning member 200, corresponding to a triangular hole. In this way, the one-to-one correspondence is used to achieve specific matching of the positioning member 200 and the positioning hole, improving the accuracy of positioning.

[0059] The positioning member 200 is connected to the base plate 100 by a bolt.

[0060] The side surface holding member 300 is connected to the base plate 100 by a bolt.

[0061] The side surface holding member 300 is connected to the bolt through a through groove.

[0062] In this embodiment, the side surface holding member 300 cooperates with the bolt through a groove, which can realize the fine adjustment of the distance between the side surface holding member 300 and the cold isostatic pressing blank, and ensure that the cold isostatic pressing blank can be clamped without being excessively squeezed.

[0063] The length of the through groove is greater than the diameter of the bolt.

[0064] In this embodiment, the length of the through groove refers to the length of the through groove along the length direction of the side surface holding member 300. The width of the through groove is slightly larger than the diameter of the bolt, which can ensure that the bolt can move along the length direction of the through groove.

[0065] The side surface holding member 300 is a detachable member.

[0066] In this embodiment, the detachable design of the side surface holding member 300 can match different cold isostatic pressing blanks by disassembling the side surface holding member 300, so as to clamp different cold isostatic pressing blanks, thereby expanding the use range of the side surface holding tool clamp.

[0067] The thickness of the rubber elastic layer is 6mm.

[0068] The side surface holding member 300 is connected to the rubber elastic layer by adhesion.

[0069] The flatness of the base plate 100 is 0.01mm.

[0070] In this embodiment, controlling the flatness of the base plate 100 is beneficial to avoid the problem of cracking of the cold isostatic pressing blank during processing due to the unevenness of the base plate 100.

[0071] Embodiment 2

[0072] The embodiment provides a side top tool clamp for cold isostatic pressing blanks, which comprises the following:

[0073] a substrate 100, two positioning members 200 and four side top members 300 arranged on the substrate 100;

[0074] The diameter of the circle where the positioning member 200 is located is smaller than the diameter of the circle where the side top member 300 is located, with the center of the substrate 100 as a reference.

[0075] The position where the side top member 300 contacts the cold isostatic pressing blank is provided with a rubber elastic layer.

[0076] The positioning member 200 cooperates with the positioning hole of the cold isostatic pressing blank.

[0077] The cross-sectional shapes of the two positioning members 200 are different.

[0078] In the embodiment, the positioning member 200 and the positioning hole can be selectively matched by a specific shape to achieve high-precision cooperation. Two positioning members 200 are adopted, corresponding to two positioning holes. One positioning member 200 is a cylindrical positioning member 200, corresponding to a circular hole. The second positioning member 200 is a triangular prism positioning member 200, corresponding to a triangular hole. In this way, the one-to-one correspondence is adopted to realize the specific matching of the positioning member 200 and the positioning hole, and the positioning accuracy is improved.

[0079] The positioning member 200 is connected to the substrate 100 by a bolt.

[0080] The side top member 300 is connected to the substrate 100 by a bolt.

[0081] The side top member 300 is connected to the bolt through a through groove.

[0082] In the embodiment, the side top member 300 is matched with the bolt through a groove, so that the distance between the side top member 300 and the cold isostatic pressing blank can be finely adjusted, and excessive extrusion of the cold isostatic pressing blank can be avoided while clamping.

[0083] The length of the through groove is greater than the diameter of the bolt.

[0084] In the embodiment, the length of the through groove refers to the length of the through groove along the length direction of the side top member 300. The width of the through groove is slightly greater than the diameter of the bolt, so that the bolt can move along the length direction of the through groove.

[0085] The side top member 300 is a detachable member.

[0086] In the embodiment, the detachable design of the side face top holding piece 300 can match different cold isostatic pressing blanks by detaching the side face top holding piece 300, and then can clamp different cold isostatic pressing blanks, thereby expanding the use range of the side top tool clamp.

[0087] The thickness of the rubber elastic layer is 10mm.

[0088] The side face top holding piece 300 is connected with the rubber elastic layer in a manner of adhesion.

[0089] The flatness of the substrate 100 is 0.05mm.

[0090] In the embodiment, controlling the flatness of the substrate 100 is beneficial to avoid the problem of cracking of the cold isostatic pressing blank in the processing process due to the unevenness of the substrate 100.

[0091] The side top tool clamp designed in the above embodiment can clamp the cold isostatic pressing blank, and can realize efficient clamping and positioning of the cold isostatic pressing blank, which is beneficial to guarantee the processing efficiency in subsequent processing, improve the processing accuracy and guarantee the qualified rate of the blank.

[0092] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical solutions of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.

[0093] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners.

[0094] In addition, various different embodiments of the utility model can also be combined in any manner, as long as they do not deviate from the technical concept of the utility model, and they should also be considered as disclosed contents of the utility model.

Claims

1. A side-top tooling fixture for a cold isostatic pressed billet, characterized in that, The side-top tooling fixture for the cold isostatic pressed billet includes: A substrate, comprising at least two positioning members and at least three side support members disposed on the substrate; With the center of the substrate as a reference, the diameter of the circle where the positioning member is located is less than the diameter of the circle where the side support member is located; A rubber elastic layer is provided at the position where the side support member contacts the cold isostatic pressed blank.

2. The side-top tooling fixture for cold isostatic pressed billets as described in claim 1, characterized in that, The positioning element mates with the positioning hole of the cold isostatic pressed billet; At least i of the at least two positioning elements have different cross-sectional shapes, where i ≤ the total number of positioning elements.

3. The side-top tooling fixture for the cold isostatic pressed billet as described in claim 1, characterized in that, The positioning element is connected to the base plate by a pin or bolt.

4. The side-top tooling fixture for cold isostatic pressed billets as described in claim 1, characterized in that, The side support member is connected to the substrate by bolts.

5. The side-top tooling fixture for cold isostatic pressed billets as described in claim 4, characterized in that, The side support member and the bolt are connected through a through groove.

6. The side-top tooling fixture for cold isostatic pressed billets as described in claim 4 or 5, characterized in that, The length of the through groove is greater than the diameter of the bolt.

7. The side-top tooling fixture for cold isostatic pressed billets as described in claim 1, characterized in that, The side support is a detachable component.

8. The side-top tooling fixture for cold isostatic pressed billets as described in claim 1, characterized in that, The thickness of the rubber elastic layer is 5-10 mm.

9. The side-top tooling fixture for cold isostatic pressed billets as described in claim 1, characterized in that, The side support member is connected to the rubber elastic layer by bonding.

10. The side-top tooling fixture for a cold isostatic pressed billet as described in claim 1, characterized in that, The flatness of the substrate is ≤0.1mm.

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