A lubrication device for metal ceramic pressing process

Abstract

The utility model discloses a lubricating device for metal ceramic pressing process, and relates to the technical field of metal ceramic pressing lubricating device. A lubricating device for metal ceramic pressing process comprises: a convex mold installed in an upper outer mold shell; a top column installed in a concave mold sleeve, a concave module is slidably connected in the concave mold sleeve, a spring is connected between the concave module and the concave mold sleeve, and the convex mold corresponds to the concave mold sleeve; an annular concave groove is provided on the outer periphery of the concave module, and a lubricating component is provided in the annular concave groove for when the concave module slides in the concave mold sleeve; the utility model adopts the method of filling lubricating powder in the annular concave groove or placing paraffin in the annular concave groove, so as to lubricate the inner wall of the concave mold sleeve during the pressing process of metal ceramic powder, thereby effectively improving the smoothness of demoulding, avoiding the jamming phenomenon during demoulding, and thus effectively improving the quality of the pressed workpiece.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal ceramic pressing lubrication devices, in particular to a lubrication device for metal ceramic pressing technology. Background Art

[0002] Cermet is a composite material that combines the properties of metal and ceramic. It usually consists of a metal matrix and a ceramic phase, aiming to combine the advantages of both to achieve better physical and chemical properties;

[0003] In the current production of metal ceramic workpieces, a pressing process is usually used. Metal ceramic powder is placed in a die, and then extruded by a punch to press it into the desired workpiece shape. However, in the pressing process, the workpiece often gets stuck during the material withdrawal process, resulting in poor material withdrawal. For this reason, we propose a lubrication device for metal ceramic pressing process. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a lubricating device for a metal ceramic pressing process which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a lubrication device for metal ceramic pressing process, comprising: a punch installed in an upper outer mold shell; a top column installed in a die sleeve, a die module is slidably connected in the die sleeve, a spring is connected between the die module and the die sleeve, and the punch corresponds to the die sleeve; an annular recessed groove is opened on the outer periphery of the die module, and a lubrication component is arranged in the annular recessed groove, which is used to lubricate the inner wall of the die sleeve when the die module slides in the die sleeve.

[0006] Preferably, it also includes a base plate, on which guide columns are installed, and the first template and the second template are fixedly connected to the guide columns respectively, a slide plate is slidably connected to the guide columns between the first template and the second template, a hydraulic cylinder is installed on the second template, the telescopic end of the hydraulic cylinder is connected to the slide plate, the upper outer mold shell is installed on the slide plate, and the concave mold sleeve is located on the first template.

[0007] Preferably, a lower outer mold shell is installed on the first mold plate, and the female mold sleeve is located in the lower outer mold shell.

[0008] Preferably, a die base is installed on the bottom plate, and the top column and the die sleeve are both installed on the die base.

[0009] Preferably, the lubrication assembly includes a connecting pipe penetrating into the die sleeve, the connecting pipe is connected to the annular recessed groove, and the lower outer mold shell and the die sleeve are provided with interconnected exhaust channels corresponding to the annular recessed groove.

[0010] Preferably, the lubrication assembly comprises paraffin in an annular shape and arranged in the annular recessed groove.

[0011] Furthermore, a plurality of mounting grooves are provided on the circumference of the annular recessed groove, elastic sheets are installed in the mounting grooves, and the elastic sheets abut against the inner wall of the paraffin.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model lubricates the inner wall of the die sleeve during the pressing of metal ceramic powder by filling lubricating powder in the annular recessed groove or placing paraffin in the annular recessed groove, thereby effectively improving the smoothness of demolding, avoiding jamming during demolding, and effectively improving the quality of the pressed workpiece.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of a lubrication device for metal ceramic pressing process proposed by the utility model;

[0016] Figure 2 The utility model proposes a lubricating device for metal ceramic pressing process Figure 1 The structural diagram at A in the middle;

[0017] Figure 3 This is a schematic structural diagram of a lower outer mold shell of a lubrication device for a metal ceramic pressing process proposed by the utility model;

[0018] Figure 4 This is a schematic structural diagram of a male die of a lubrication device for a metal ceramic pressing process proposed by the utility model;

[0019] Figure 5 This is a schematic structural diagram of a concave module of a lubrication device for a metal ceramic pressing process proposed by the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of a mounting groove of a lubrication device for a metal ceramic pressing process proposed by the utility model;

[0021] Figure 7 This is a schematic structural diagram of an elastic sheet of a lubricating device for a metal ceramic pressing process proposed by the utility model;

[0022] Figure 8 The utility model discloses a schematic structural diagram of a paraffin lubricating device for a metal ceramic pressing process.

[0023] In the figure: 1, bottom plate; 10, guide column; 11, first template; 12, slide plate; 13, second template; 14, hydraulic cylinder; 15, upper outer mold shell; 151, punch; 16, lower outer mold shell; 161, die sleeve; 162, die block; 163, top column; 164, spring; 165, mold base; 17, annular recessed groove; 171, connecting pipe; 172, exhaust channel; 181, mounting groove; 182, elastic sheet; 183, paraffin. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] Example 1: Reference Figure 1-Figure 8 A lubrication device for metal ceramic pressing process, comprising: a convex die 151 installed in an upper outer die shell 15; a top column 163 installed in a concave die sleeve 161, a concave module 162 is slidably connected in the concave die sleeve 161, a spring 164 is connected between the concave module 162 and the concave die sleeve 161, and the convex die 151 corresponds to the concave die sleeve 161; an annular concave groove 17 is provided on the outer periphery of the concave module 162, and a lubrication component is provided in the annular concave groove 17, so as to lubricate the inner wall of the concave die sleeve 161 when the concave module 162 slides in the concave die sleeve 161;

[0026] It also includes a bottom plate 1, on which a guide column 10 is installed, on which a first template 11 and a second template 13 are fixedly connected, respectively, a slide plate 12 is slidably connected to the guide column 10 between the first template 11 and the second template 13, a hydraulic cylinder 14 is installed on the second template 13, and the telescopic end of the hydraulic cylinder 14 is connected to the slide plate 12, an upper outer mold shell 15 is installed on the slide plate 12, and a concave mold sleeve 161 is located on the first template 11;

[0027] A lower outer mold shell 16 is installed on the first mold plate 11, and a concave mold sleeve 161 is located in the lower outer mold shell 16;

[0028] A die base 165 is mounted on the bottom plate 1, and a top column 163 and a die sleeve 161 are mounted on the die base 165;

[0029] When the device is in use, the metal ceramic powder is poured into the die sleeve 161, and the metal ceramic powder at the top of the ejector column 163 is removed. The slide plate 12 is pushed down by the hydraulic cylinder 14, so that the punch 151 enters the die sleeve 161 and contacts the concave module 162, thereby pressing the metal ceramic powder. After the punch 151 enters the die sleeve 161, the concave module 162 slides down in the die sleeve 161 and squeezes the spring 164. When the slide plate 12 moves up to separate the punch 151 from the die sleeve 161, the spring 164 pushes the concave module 162 to move up, thereby ejecting the pressed workpiece.

[0030] When the concave module 162 is pushed upward by the spring 164, the lubrication component located in the annular recessed groove 17 lubricates the inner wall of the concave die sleeve 161, which facilitates the lubrication and demolding of the workpiece next time, thereby avoiding the workpiece from getting stuck in the concave die sleeve 161 when the concave module 162 is moved upward to demold the workpiece. Example

[0031] Reference Figure 2 , a lubrication device for metal ceramic pressing process, which is basically the same as embodiment 1, further comprising: the lubrication assembly includes a connecting pipe 171 penetrating into the female die sleeve 161, the connecting pipe 171 is connected to the annular recessed groove 17, and the lower outer die shell 16 and the female die sleeve 161 are provided with a connected exhaust channel 172, and the exhaust channel 172 corresponds to the annular recessed groove 17;

[0032] The external pulse powder spraying device is connected to the connecting pipe 171. When the male die 151 contacts the female die block 162, the lubricating powder in the annular recessed groove 17 is smeared on the inner wall of the female die sleeve 161, thereby facilitating the subsequent demoulding of the workpiece;

[0033] When the concave module 162 repeatedly moves down in the concave die sleeve 161, the lubricating powder in the annular concave groove 17 is reduced. After the concave module 162 moves down to the right position, the lower part of the annular concave groove 17 is connected with the exhaust channel 172. The external pulse powder spraying equipment sprays the lubricating powder into the annular concave groove 17 through the connecting pipe 171, and the exhaust channel 172 can discharge the gas, so that the lubricating powder can be fully sprayed in the annular concave groove 17, thereby improving the lubrication effect on the inner wall of the concave die sleeve 161.

[0034] Lubricating powder can be stone powder. Example

[0035] Reference Figure 6 , Figure 7 , Figure 8 , a lubrication device for metal ceramic pressing process, which is basically the same as embodiment 1, further comprising: the lubrication assembly includes an annular paraffin 183 disposed in an annular recessed groove 17;

[0036] The annular paraffin wax 183 is divided into two halves and is engaged in the annular recessed groove 17. The inner wall of the die sleeve 161 is effectively lubricated by the repeated up and down movement of the die module 162, thereby improving the smoothness of demoulding.

[0037] A plurality of mounting grooves 181 are provided on the circumference of the annular recessed groove 17. An elastic sheet 182 is installed in the mounting groove 181. The elastic sheet 182 abuts against the inner wall of the paraffin 183.

[0038] The provision of the elastic sheet 182 enables the outer periphery of the paraffin 183 to be in close contact with the inner wall of the die sleeve 161 , thereby further improving the lubrication effect on the inner wall of the die sleeve 161 .

[0039] The utility model lubricates the inner wall of the die sleeve 161 during the pressing of the metal ceramic powder by filling lubricating powder in the annular recessed groove 17 or placing paraffin 183 in the annular recessed groove 17, thereby effectively improving the smoothness of demolding, avoiding jamming during demolding, and effectively improving the quality of the pressed workpiece.

[0040] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the present invention can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A lubrication device for metal ceramic pressing process, characterized in that: include: A male mold (151) mounted in the upper outer mold shell (15); A top column (163) is installed in a female mold sleeve (161); a female module (162) is slidably connected to the female mold sleeve (161); a spring (164) is connected between the female module (162) and the female mold sleeve (161); and the male mold (151) corresponds to the female mold sleeve (161); An annular recessed groove (17) is provided on the outer periphery of the concave module (162), and a lubrication component is arranged in the annular recessed groove (17) for lubricating the inner wall of the concave die sleeve (161) when the concave module (162) slides in the concave die sleeve (161).

2. A lubrication device for metal ceramic pressing process according to claim 1, characterized in that: The invention also comprises a base plate (1), wherein a guide column (10) is mounted on the base plate (1), and a first template (11) and a second template (13) are respectively fixedly connected to the guide column (10), a slide plate (12) is slidably connected to the guide column (10) between the first template (11) and the second template (13), a hydraulic cylinder (14) is mounted on the second template (13), and a telescopic end of the hydraulic cylinder (14) is connected to the slide plate (12), the upper outer mold shell (15) is mounted on the slide plate (12), and the concave mold sleeve (161) is located on the first template (11).

3. A lubrication device for metal ceramic pressing process according to claim 2, characterized in that: A lower outer mold shell (16) is mounted on the first mold plate (11), and the female mold sleeve (161) is located in the lower outer mold shell (16).

4. A lubrication device for metal ceramic pressing process according to claim 3, characterized in that: A die base (165) is mounted on the bottom plate (1), and the top column (163) and the die sleeve (161) are both mounted on the die base (165).

5. A lubrication device for metal ceramic pressing process according to claim 4, characterized in that: The lubrication assembly comprises a connecting pipe (171) penetrating into the die sleeve (161), the connecting pipe (171) being in communication with the annular recessed groove (17), and the lower outer die shell (16) and the die sleeve (161) are provided with a communicating exhaust channel (172), the exhaust channel (172) corresponding to the annular recessed groove (17).

6. A lubricating device for metal ceramic pressing process according to claim 4, characterized in that: The lubrication assembly comprises an annular paraffin wax (183) arranged in an annular recessed groove (17).

7. A lubricating device for metal ceramic pressing process according to claim 6, characterized in that: A plurality of mounting grooves (181) are provided on the circumference of the annular recessed groove (17), and elastic sheets (182) are installed in the mounting grooves (181), and the elastic sheets (182) abut against the inner wall of the paraffin (183).

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