PCBN (Polycrystalline Cubic Boron Nitride) compact forming device

Abstract

The utility model belongs to the technical field of powder forming devices, and relates to a PCBN (Polycrystalline Cubic Boron Nitride) composite sheet forming device which comprises a working table with supporting legs, universal wheels with brakes are arranged at the bottoms of the supporting legs, a door-shaped support is arranged on the working table, and a hydraulic cylinder and a powder box are arranged at the top of the door-shaped support. A telescopic rod of the hydraulic cylinder penetrates through a top beam of the door-shaped support in a sliding mode and then is connected with an extrusion head, a die groove is formed in the position, right opposite to the extrusion head, of the workbench, a die is placed in the die groove, a material sliding groove is formed in the top beam of the door-shaped support, and the top of the material sliding groove is communicated with a discharging port of the powder box. The bottom of the chute is connected with a feeding pipe through a rotary joint, the feeding pipe can rotate between the upper part of the mold and a position which does not interfere with the work of the extrusion head, and a feeding valve is arranged at the outlet end of the feeding pipe. According to the device, powder can be rapidly added into the mold, the forming efficiency of PCBN clad sheets is improved, meanwhile, the device is convenient to move, and the device can be suitable for more application scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder forming devices, and in particular relates to a PCBN composite sheet forming device. Background Art

[0002] PCBN cutting tools are man-made cubic boron nitride cutting tools that maintain high hardness even at high temperatures and are primarily used for machining iron. The preparation of PCBN composite sheets is a crucial step in the production of PCBN cutting tools. During this process, powdered material is first loaded into a mold on a loading table, and then the mold is placed on a press for extrusion. This operation is somewhat cumbersome and inefficient. Furthermore, existing presses are difficult to move and have limited applicability.

[0003] Therefore, it is urgent to develop a new PCBN composite sheet forming device. Utility Model Content

[0004] The purpose of this utility model is to solve the above technical problems, and its technical solution is:

[0005] A PCBN composite sheet forming device comprises a workbench with supporting legs, the bottom of the supporting legs is provided with a universal wheel with a brake, the workbench is provided with a gate-type bracket, the top of the gate-type bracket is provided with a hydraulic cylinder and a powder box, the telescopic rod of the hydraulic cylinder slides through the top beam of the gate-type bracket and is connected to an extrusion head, the workbench is provided with a mold groove at a position opposite to the extrusion head, a mold is placed in the mold groove, a chute is provided in the top beam of the gate-type bracket, the top of the chute is connected to the discharge port of the powder box, and the bottom of the chute is connected to a feeding pipe via a rotary joint, the feeding pipe can rotate between above the mold and a position that does not interfere with the operation of the extrusion head, and a feeding valve is provided at the outlet end of the feeding pipe.

[0006] Preferably, the workbench is provided with a residual material collection trough, the discharge port of which extends below the workbench, and a material collection cup is movably positioned below the workbench, the material collection cup correspondingly positioned below the discharge port of the residual material collection trough. During the process of feeding the mold, spilled material and residual material are unavoidable. This can be promptly removed with a brush into the residual material collection trough, where it is eventually collected into the material collection cup. Once the residual material in the material collection cup has accumulated to a certain level, the cup can be removed and the residual material can be poured back into the powder box for reuse.

[0007] Preferably, a lower support plate is provided under the workbench, the lower support plate is fixedly connected to the support legs, and a material receiving bracket is provided between the lower support plate and the workbench, which helps to improve the supporting strength of the lower support plate, and a material receiving cup support seat is provided on the side wall of the material receiving bracket to facilitate the placement of the material receiving cup.

[0008] Preferably, the lower support plate is equipped with a hydraulic station and a rechargeable mobile power supply, and the workbench is also equipped with a PLC controller. The PLC controller is located outside the portal support. The hydraulic station and PLC controller are each electrically connected to the rechargeable mobile power supply, and the hydraulic cylinder is connected to the hydraulic station via an oil circuit. The PLC controller precisely controls the extrusion pressure and extrusion time of the extrusion head. Powering the PLC controller and hydraulic station with a rechargeable mobile power supply (such as a rechargeable lithium battery) frees the device from power line constraints and enables its application in a wider range of scenarios.

[0009] The present invention also includes other components that enable the PCBN composite sheet forming device to be used normally, which are all conventional means in the field. In addition, devices or components not limited in the present invention, such as hydraulic stations, PLC controllers, molds, rechargeable mobile power supplies, etc., all adopt existing technologies in the field.

[0010] The working principle of the utility model is that when in use, the mold is first placed in the mold groove, the pressing block on the top of the mold is taken out, and then the feeding tube is rotated and the feeding valve is opened to quickly add powder into the mold. After adding, the feeding valve is closed and the feeding tube is rotated to a position where it does not interfere with the operation of the extrusion head. Then, the pressing block is placed back on the top of the mold, and then the hydraulic cylinder is started, so that the extrusion head can extrude the mold according to the set pressure and time. After the extrusion is completed, the mold is opened and the PCBN composite sheet can be taken out.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the device can quickly add powder into the mold, thereby improving the molding efficiency of the PCBN composite sheet, and is easy to move and can be applied in more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model after the mold is filled with materials in the embodiment.

[0013] Figure 2 Schematic diagram of the overall structure of the utility model when adding material to the mold in the embodiment. Specific implementation method;

[0015] The technology of the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods. Example

[0016] like Figure 1 、 Figure 2As shown, a PCBN composite sheet forming device proposed in this embodiment includes a workbench 2 with a support leg 1, a universal wheel 3 with a brake is provided at the bottom of the support leg, a door-type bracket 4 is provided on the workbench, a hydraulic cylinder 5 and a powder box 6 are provided on the top of the door-type bracket, and the telescopic rod of the hydraulic cylinder slides through the top beam of the door-type bracket and is connected to an extrusion head 7, a mold groove is provided at the position of the workbench facing the extrusion head, a mold 8 is placed in the mold groove, a chute 9 is provided in the top beam of the door-type bracket, the top of the chute is connected to the discharge port of the powder box, and the bottom of the chute is connected to a feeding pipe 11 through a rotary joint 10, and the feeding pipe can rotate between above the mold and a position that does not interfere with the operation of the extrusion head, and a feeding valve is provided at the outlet end of the feeding pipe.

[0017] Specifically, the workbench is equipped with a residual material collection trough 12, the discharge port of which extends below the workbench. A material collection cup 13 is movably positioned below the workbench and positioned below the discharge port of the residual material collection trough. During the process of feeding the mold, spilled or residual material is inevitable. This can be promptly removed with a brush and directed to the residual material collection trough, where it is then eventually collected in the material collection cup. Once the residual material in the material collection cup has accumulated to a certain level, the cup can be removed and the remaining material can be poured back into the powder box for reuse.

[0018] In this embodiment, a lower support plate 14 is provided under the workbench, and the lower support plate is fixedly connected to the support legs. A material receiving bracket 15 is provided between the lower support plate and the workbench, which helps to improve the supporting strength of the lower support plate. The side wall of the material receiving bracket is provided with a material receiving cup support seat 16 to facilitate the placement of the material receiving cup.

[0019] More specifically, the lower support plate is equipped with a hydraulic station 17 and a rechargeable mobile power supply 18. The workbench is also equipped with a PLC controller 19, which is located outside the portal support. The hydraulic station and PLC controller are each electrically connected to the rechargeable mobile power supply, and the hydraulic cylinder is connected to the hydraulic station via an oil circuit. The PLC controller precisely controls the extrusion pressure and extrusion time of the extrusion head. The rechargeable mobile power supply (specifically, a rechargeable lithium battery in this embodiment) powers the PLC controller and hydraulic station, freeing the device from power line constraints and enabling its application in a wider range of scenarios.

[0020] The working principle of the utility model is that when in use, the mold is first placed in the mold groove, the pressing block 20 on the top of the mold is taken out, and then the feeding tube is rotated and the feeding valve is opened to quickly add powder into the mold. After adding, the feeding valve is closed and the feeding tube is rotated to a position where it does not interfere with the operation of the extrusion head. Then, the pressing block is placed back on the top of the mold, and then the hydraulic cylinder is started, so that the extrusion head can extrude the mold according to the set pressure and time. After the extrusion is completed, the mold is opened and the PCBN composite sheet can be taken out.

[0021] It should be noted that the mold in this embodiment adopts the PCBN integral sheet cup cold pressing mold disclosed in the Chinese patent document with application number CN202222817608.6. When adding material, the pressing block can be removed from the mold. After pressing and molding, the mold is removed from the mold groove and inverted on the workbench. The pad is removed to obtain the PCBN composite sheet.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PCBN composite sheet forming device, comprising a workbench with legs, characterized in that: The bottom of the support leg is provided with a universal wheel with a brake, the workbench is provided with a door-type bracket, the top of the door-type bracket is provided with a hydraulic cylinder and a powder box, the telescopic rod of the hydraulic cylinder slides through the top beam of the door-type bracket and is connected to the extrusion head, the workbench is provided with a mold groove at a position opposite to the extrusion head, a mold is placed in the mold groove, a chute is provided in the top beam of the door-type bracket, the top of the chute is connected to the discharge port of the powder box, and the bottom of the chute is connected to a feeding pipe through a rotary joint, the feeding pipe can rotate between above the mold and a position that does not interfere with the operation of the extrusion head, and a feeding valve is provided at the outlet end of the feeding pipe.

2. The PCBN composite sheet forming device according to claim 1, characterized in that: The workbench is provided with a residual material collecting trough, the discharge port of the residual material collecting trough extends to the bottom of the workbench, and a material receiving cup is movably placed under the workbench, and the material receiving cup is correspondingly arranged below the discharge port of the residual material collecting trough.

3. The PCBN composite sheet forming device according to claim 2, characterized in that: A lower support plate is provided below the workbench, the lower support plate is fixedly connected to the support legs, and a material receiving bracket is provided between the lower support plate and the workbench, and a material receiving cup support seat is provided on the side wall of the material receiving bracket.

4. The PCBN composite sheet forming device according to claim 3, characterized in that: The lower support plate is provided with a hydraulic station and a rechargeable mobile power supply, and the workbench is also provided with a PLC controller, which is arranged on the outside of the door-type bracket. The hydraulic station and the PLC controller are electrically connected to the rechargeable mobile power supply respectively, and the hydraulic cylinder is connected to the hydraulic station through an oil circuit.

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