Hot-pressing target demolding tool

Abstract

The utility model relates to a hot-pressing target demolding tool. The hot-pressing target demolding tool comprises a barrel, a connecting assembly and a hoisting column. The cylinder body comprises two hoop plates which are oppositely arranged, the hoop plates are used for hooping a mold, connecting lug plates are bent on the two sides of each hoop plate, the connecting lug plates of the two hoop plates are oppositely arranged, and first mounting holes are formed in the connecting lug plates; the connecting assembly comprises a fastening bolt and a fastening nut, and after the fastening bolt penetrates through the first mounting holes of the two connecting lug plates, the fastening bolt is in threaded connection with the fastening nut to force the hoop plate to hoop the mold; the number of the hoisting columns is two, and the two hoisting columns are fixedly connected with the two hoop plates correspondingly. In the application, the auxiliary tool is hooped on the periphery of the mold; then, a lifting rope of a lifting device is arranged on the lifting column in a sleeving mode, and the auxiliary tool, the mold and the target material blank are moved away from the ground together; and then the target material blank is automatically separated from the mold by utilizing external force, the dead weight of the target material blank and the demolding inclination designed by the mold, so that the large-size target material blank is conveniently demolded after being subjected to hot pressing.

Description

Technical Field

[0001] The present application relates to the field of target material auxiliary tooling, and in particular to a hot pressing target material demoulding tooling. Background Art

[0002] Hot Pressing Sintering (HP) is a powder material forming process that performs pressing and sintering simultaneously. First, loose powder or powder compact is placed in a mold, and then pressurized in a special hot press while heating the powder to below the melting point, that is, a process of applying uniaxial pressure at high temperature to form it. Hot pressing sintered materials have the advantages of short sintering time, low temperature, fine grains, low stress, and high product performance. They are widely used in cemented carbide, ceramic materials, powder metallurgy, composite materials and other fields.

[0003] When hot pressing is used to prepare ceramic target blanks, demolding is required after sintering is completed to remove the target blank from the mold. The mold material usually used is a graphite mold. Since a certain axial pressure is applied during the hot pressing sintering process, and there is a difference in the expansion coefficient between the mold material and the target blank, stress will be generated after cooling, causing the mold and the blank to be tightly connected together. Therefore, a certain demolding force is required to remove the target blank from the mold.

[0004] Especially when sintering large-sized target blanks, due to their large size and heavy weight, they cannot be demolded directly by manual labor. At the same time, improper demolding will also cause problems such as corner chipping, cracks, and scratches on the target blanks, thereby reducing the demolding quality of the hot pressing mold. In severe cases, it will cause the mold to be scrapped. Utility Model Content

[0005] In order to assist in demolding large-sized target blanks after hot pressing, the present application provides a hot pressing target demolding tool.

[0006] The present application provides a hot pressing target demoulding tooling, which adopts the following technical solution:

[0007] A hot pressing target demolding tool, comprising a cylinder, a connecting assembly and a hanging column; the cylinder comprises two oppositely arranged hoop plates, the hoop plates are used to clamp the mold, and connecting ear plates are bent on both sides of the hoop plates, the connecting ear plates of the two hoop plates are oppositely arranged, and the connecting ear plates are provided with a first mounting hole; the connecting assembly comprises a fastening bolt and a fastening nut, after the fastening bolt is passed through the first mounting holes of the two connecting ear plates, the fastening bolt is threadedly connected with the fastening nut, forcing the hoop plates to clamp the mold; there are two hanging columns, the two hanging columns are respectively fixedly connected to the two hoop plates, and the hanging columns are arranged on the side of the hoop plates away from the mold, the hanging column is used for fixing with a hanging rope, and the virtual connecting line of the two hanging columns passes through the center point of the mold.

[0008] By adopting the above technical solution, the auxiliary tooling is sleeved on the outer periphery of the mold, and the barrel and the outer periphery of the mold are tightly clamped by adjusting the fastening bolts. Subsequently, the lifting rope of the lifting device is sleeved on the lifting column, and the auxiliary tooling, the mold and the target blank are lifted off the ground together. Finally, the target blank is automatically removed from the mold by using external force, the deadweight of the target blank, and the demolding slope of the mold design, so as to facilitate the demolding of large-sized target blanks after hot pressing.

[0009] Optionally, the hoop plate includes a first component, a second component and a hinge; two second components are provided, the two first components are arranged on both sides of the second component, and the first component and the second component are connected by the hinge; the second component is bent on one side away from the first component to form the connecting ear plate.

[0010] By adopting the above technical solution, the first component and the second component are connected by hinges, so as to adjust the radius of the hoop plate, increase the contact area between the hoop plate and the mold, and improve the tightening effect of the hoop plate on the mold.

[0011] Optionally, the auxiliary tooling also includes a reinforcing plate, which is welded and fixed to the connecting ear plate, the thickness of the reinforcing plate is greater than the thickness of the connecting ear plate, the reinforcing plate is provided with a second mounting hole for the fastening bolt to pass through, and the second mounting hole is coaxially arranged with the first mounting hole.

[0012] By adopting the above technical solution, the rigidity of both sides of the hoop plate is improved by reinforcing the plate, thereby reducing the damage to the connecting ear plate.

[0013] Optionally, it also includes a pad, the thickness of the pad is greater than the thickness of the hoop, and the pad is welded and fixed to the hoop; the projection area of ​​the pad is greater than the projection area of ​​the hanging column, and the hanging column is welded and fixed to the pad.

[0014] By adopting the above technical solution, since the welding area between the pad and the first component is large, the connection strength between the lifting column and the hoop plate is large, which can increase the maximum lifting weight of the tooling and extend the service life of the tooling. Optionally, the auxiliary tooling also includes a plurality of support components, which are arranged at intervals around the outer periphery of the cylinder, and the support components are used to set a clearance distance between the cylinder and the ground; the support component includes a support block and a support rod, the support block is welded and fixed to the hoop plate, and the support block is provided with a plug-in groove; one end of the support rod is in contact with the ground, and the other end of the support rod is plugged into the plug-in groove.

[0015] By adopting the above technical solution, the support assembly is used to set a certain distance between the cylinder and the ground, so that the cylinder is initially clamped to the outer periphery of the mold, so that the staff can adjust the fastening nuts and fastening bolts, thereby improving the work efficiency of the staff.

[0016] Optionally, the support rod is a telescopic rod.

[0017] By adopting the above technical solution, the support rod is a telescopic rod, which makes it easy for workers to install the support rod and flexibly adjust the length of the support rod according to the height of the mold.

[0018] Optionally, the support rod includes a telescopic inner tube, an outer tube and a spring buckle; the spring buckle is arranged on the inner tube, and along the length direction of the outer tube, the outer tube is spaced apart with a plurality of connecting holes for the spring buckle to pass through.

[0019] By adopting the above technical solution, the spring buckle and the connecting hole cooperate with each other, so that it is convenient for the staff to adjust the length of the support rod.

[0020] Optionally, the support assembly further includes a flexible member, and the flexible member is wrapped around both ends of the support rod.

[0021] By adopting the above technical solution, the flexible member is bonded to both sides of the support rod, so as to reduce the possibility of the support rod scratching the staff.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Sleeve the auxiliary tooling on the outer periphery of the mold, and adjust the fastening bolts to make the cylinder and the outer periphery of the mold tightly clamped. Then, put the lifting rope of the lifting device on the lifting column, and lift the auxiliary tooling, mold and target blank off the ground. Finally, use external force, the weight of the target blank, and the demolding slope of the mold design to make the target blank automatically ejected from the mold, so as to facilitate the demolding of large-sized target blanks after hot pressing;

[0024] 2. The first component and the second component are connected by a hinge, so as to adjust the radius of the hoop plate, increase the contact area between the hoop plate and the mold, and improve the tightening effect of the hoop plate on the mold;

[0025] 3. The support assembly is used to set a certain distance between the cylinder and the ground, so that the cylinder is initially clamped to the outer periphery of the mold, so that the staff can adjust the fastening nuts and fastening bolts to improve the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram showing the connection relationship between the target material blank and the mold in Example 1.

[0027] Figure 2 It is a schematic diagram of the demoulding tooling structure in Example 1.

[0028] Figure 3 yes Figure 2Enlarged view of point A in the middle.

[0029] Figure 4 It is a schematic diagram showing the working state of the demoulding tooling in Example 1.

[0030] Figure 5 It is a schematic diagram showing the working state of the demoulding tooling in Example 2.

[0031] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0032] Figure 7 Schematic diagram of the telescopic rod structure in Example 2.

[0033] Figure 8 yes Figure 7 Enlarged view of point C in the middle.

[0034] Explanation of the accompanying drawings: 1. target material blank; 2. mold; 3. cylinder; 31. hoop plate; 311. first component; 312. second component; 3121. connecting ear plate; 3122. first mounting hole; 313. hinge; 4. connecting assembly; 41. fastening bolt; 42. fastening nut; 5. pad; 6. hanging column; 61. first column; 62. second column; 7. reinforcing plate; 71. second mounting hole; 8. supporting assembly; 81. supporting block; 82. supporting rod; 821. inner tube; 822. outer tube; 8221. connecting hole; 823. spring buckle; 9. lifting rope; 10. flexible part; 11. ground. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-8 This application is described in further detail.

[0036] The present application embodiment discloses a hot pressing target material demoulding tool. Figure 1 When a large-sized target blank 1 is prepared by hot pressing and sintering, the target blank 1 needs to be demolded after sintering, and the target blank 1 is taken out of the mold 2. It is worth noting that in order to facilitate demolding of the target blank 1; during the hot pressing and sintering process of the target blank 1, graphite paper is placed between the inner wall of the mold 2 and the target blank 1 to adjust the gap between the blank and the mold 2. In this embodiment, the mold 2 is cylindrical.

[0037] However, a certain axial pressure needs to be applied to the target blank 1 during the hot pressing and sintering process; and at the same time, there is a difference in the expansion coefficients of the mold 2 material and the target blank 1, so the mold 2 and the blank are tightly connected together, and the target blank 1 cannot be demolded by directly pushing it manually.

[0038] Reference Figure 2The present application discloses a hot pressing target demoulding tool, which is used to assist in demoulding a large-sized target blank 1 after hot pressing. Specifically, the hot pressing target demoulding tool comprises a cylinder 3, a connecting assembly 4, a backing plate 5 and a hanging column 6.

[0039] Reference Figures 2 to 4 The inner diameter of the cylinder 3 is slightly larger than the outer diameter of the mold 2. The cylinder 3 includes two hoop plates 31 arranged opposite to each other. The two hoop plates 31 are fixedly connected by a connecting assembly 4. The hoop plates 31 are used to clamp the mold 2. In this embodiment, the hoop plates 31 are formed by stamping stainless steel material, and the two hoop plates 31 are both semicircular in shape to fit the cylindrical mold 2.

[0040] Reference Figures 2 to 4 In this embodiment, the hoop plate 31 includes a first component 311, a second component 312 and a hinge 313; two second components 312 are provided, and two first components 311 are provided on both sides of the second component 312, and the first component 311 and the second component 312 are connected by the hinge 313. The second component 312 is bent at one side away from the first component 311 to form a connecting ear plate 3121, and the connecting ear plates 3121 of the two hoop plates 31 are arranged opposite to each other, and the connecting ear plates 3121 are provided with a first mounting hole 3122. In this embodiment, the two ends of the hinge 313 are welded and fixed to the first component 311 and the second component 312 to improve the connection strength between the first component 311 and the second component 312.

[0041] Reference Figures 2 to 4 The connection assembly 4 includes a plurality of sets of fastening bolts 41 and fastening nuts 42. After the fastening bolts 41 are passed through the first mounting holes 3122 of the two connecting ear plates 3121, the fastening bolts 41 are threadedly connected with the fastening nuts 42, forcing the two hoop plates 31 to approach each other, so that the hoop plates 31 clamp the mold 2. The hoop plates 31 are configured as a first part 311 and a second part 312 connected by hinges 313, so as to facilitate adjustment of the radius of the hoop plates 31, increase the contact area between the hoop plates 31 and the mold 2, and improve the clamping effect of the hoop plates 31 on the mold 2.

[0042] Reference Figures 2 to 4, there are two hanging columns 6, and the two hanging columns 6 are fixedly connected to the two hoop plates 31 respectively, and the hanging columns 6 are fixedly connected to the first component 311 through the pad 5. Among them, the hanging columns 6 and the pad 5 are made of stainless steel. The thickness of the pad 5 is greater than the thickness of the hoop plate 31, and the pad 5 is welded and fixed to the hoop plate 31; the projection area of ​​the pad 5 is greater than the projection area of ​​the hanging column 6, and the hanging column 6 is welded and fixed to the pad 5. The hanging column 6 is used for fixing the hanging rope 9, and the virtual connection line of the two hanging columns 6 passes through the center point of the mold 2. The hanging column 6 includes a first column 61 and a second column 62, the first column 61 and the second column 62 are integrally formed, and the first column 61 and the second column 62 are coaxially arranged, the diameter of the first column 61 is greater than the diameter of the second column 62, and the second column 62 is welded and fixed to the pad 5. The second column 62 is used to contact the lifting rope 9, and the first column 61 is used to prevent the lifting rope 9 from slipping out of the second column 62, thereby improving the stability of the auxiliary tooling after lifting. Compared with the lifting column 6 being directly welded and fixed to the first component 311, since the welding area between the pad 5 and the first component 311 is larger, when the lifting equipment plays the role of the auxiliary tooling, the mold 2 and the target blank 1, the stress of the first component 311 can be reduced, the deformation of the first component 311 can be reduced, and the maximum lifting weight of the mold 2 and the target blank 1 can be increased.

[0043] The implementation principle of a hot pressing target demoulding tooling in the embodiment of the present application is:

[0044] Reference Figures 1 to 4 , the auxiliary tooling is sleeved on the outer periphery of the mold 2, and the barrel 3 and the outer periphery of the mold 2 are tightly clamped by adjusting the fastening bolts 41. Subsequently, the lifting rope 9 of the lifting device is sleeved on the lifting column 6, and the auxiliary tooling, the mold 2 and the target blank 1 are lifted off the ground 11. Finally, the graphite paper placed on the inner wall of the mold 2 is gradually pulled out to adjust the gap between the target blank 1 and the mold 2, and then the target blank 1 is automatically removed from the mold 2 by using the deadweight of the target blank 1 and the demolding slope designed for the mold 2.

[0045] That is, the demoulding auxiliary tooling can assist in demoulding a target blank 1 with a large size and a high weight, and the operation is simple and safe, and can significantly improve the demoulding efficiency of the operator.

[0046] Example 2

[0047] The difference between this embodiment 2 and embodiment 1 is that:

[0048] Reference Figure 5 and Figure 6The auxiliary tooling also includes a reinforcing plate 7, which is welded and fixed to the connecting ear plate 3121. The thickness of the reinforcing plate 7 is greater than that of the connecting ear plate 3121. The reinforcing plate 7 is provided with a second mounting hole 71 for the fastening bolt 41 to pass through, and the second mounting hole 71 is coaxially arranged with the first mounting hole 3122. Therefore, when the fastening bolt 41 pulls the two connecting ear plates 3121 together, the deformation of the connecting ear plates 3121 can be reduced, thereby improving the service life of the auxiliary tooling. When the height of the mold 2 is relatively large, the auxiliary tooling needs to be arranged in the middle position of the mold 2; at this time, a certain distance is set between the auxiliary tooling and the ground 11. In order to facilitate the staff to fasten the cylinder 3, the present embodiment further improves the auxiliary work.

[0049] Reference Figure 5 The auxiliary tooling also includes a plurality of support assemblies 8, which are arranged at intervals around the outer circumference of the cylinder 3, and are used to set a clearance distance between the cylinder 3 and the ground 11. Specifically, the support assembly 8 includes a support block 81 and a support rod 82, the support block 81 is welded and fixed to the hoop plate 31, and the support block 81 is provided with a plug-in groove; one end of the support rod 82 abuts against the ground 11, and the other end of the support rod 82 is plugged into the plug-in groove. In this embodiment, the support assembly 8 is provided with four groups, and the four support blocks 81 are welded and fixed to the four second components 312 respectively.

[0050] Reference Figure 7 and Figure 8 In this embodiment, the support rod 82 is a telescopic rod, so that the staff can install the support rod 82. This embodiment discloses a structure of a support rod 82, and the support rod 82 includes an inner tube 821, an outer tube 822 and a spring buckle 823 that are telescopically arranged. The spring buckle 823 is arranged on the inner tube 821, and along the length direction of the outer tube 822, the outer tube 822 is spaced apart with a plurality of connecting holes 8221 for the spring buckle 823 to pass through; thereby facilitating the staff to adjust the length of the support rod 82. In other embodiments, the support rod 82 may also adopt other structural forms to achieve the telescopic effect of the support rod 82.

[0051] At the same time, the support assembly 8 also includes a flexible member 10, which is wrapped around both ends of the support rod 82. The flexible member 10 can be a flexible material such as rubber, silicone, etc., and the flexible member 10 is bonded to both sides of the support rod 82 to reduce the occurrence of the support rod 82 scratching the staff.

[0052] The implementation principle of a hot pressing target demoulding tooling in the embodiment of the present application is:

[0053] Reference Figure 5 After the staff puts the cylinder 3 on the outer periphery of the mold 2, the support rod 82 is placed between the ground 11 and the support block 81; then, the staff adjusts the length of the support rod 82 so that the support rod 82 temporarily supports the cylinder 3.

[0054] Reference Figure 5 and Figure 6 Then, the staff adjusts the fastening nut 42 so that the two hoop plates 31 clamp the middle area of ​​the mold 2. That is, through the support assembly 8, it is convenient for the staff to clamp the auxiliary tooling and the mold 2, thereby improving the production efficiency of the staff.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot pressing target demoulding tool, characterized in that: The invention comprises a cylinder (3), a connecting assembly (4) and a hanging column (6); the cylinder (3) comprises two hoop plates (31) arranged opposite to each other, the hoop plates (31) are used to clamp the mold (2), and connecting ear plates (3121) are bent on both sides of the hoop plates (31), the connecting ear plates (3121) of the two hoop plates (31) are arranged opposite to each other, and the connecting ear plates (3121) are provided with a first mounting hole (3122); the connecting assembly (4) comprises a fastening bolt (41) and a fastening nut (42), and the fastening bolt (41) is passed through the two hoop plates (31) and the fastening nut (42) is provided. After the first mounting hole (3122) of the connecting ear plate (3121) is connected, the fastening bolt (41) is threadedly connected to the fastening nut (42), forcing the hoop plate (31) to clamp the mold (2); two hanging columns (6) are provided, and the two hanging columns (6) are respectively fixedly connected to the two hoop plates (31), and the hanging columns (6) are arranged on the side of the hoop plate (31) away from the mold (2), and the hanging columns (6) are used for being fixed by the hanging rope (9), and the virtual connection line of the two hanging columns (6) passes through the center point of the mold (2).

2. The hot pressing target demoulding tooling according to claim 1, characterized in that: The hoop plate (31) comprises a first component (311), a second component (312) and a hinge (313); the second component (312) is provided with two, the two first components (311) are arranged on both sides of the second component (312), and the first component (311) and the second component (312) are connected via the hinge (313); the second component (312) is bent at a side away from the first component (311) to form the connecting ear plate (3121).

3. The hot pressing target demoulding tooling according to claim 1, characterized in that: The auxiliary tooling also includes a reinforcing plate (7), the reinforcing plate (7) being welded and fixed to the connecting ear plate (3121), the reinforcing plate (7) having a thickness greater than that of the connecting ear plate (3121), the reinforcing plate (7) being provided with a second mounting hole (71) for the fastening bolt (41) to pass through, the second mounting hole (71) being coaxially arranged with the first mounting hole (3122).

4. The hot pressing target demoulding tooling according to claim 1, characterized in that: It also comprises a pad (5), the pad (5) having a thickness greater than that of the hoop plate (31), the pad (5) being fixed to the hoop plate (31) by welding; the pad (5) having a projection area greater than that of the hanging column (6), the hanging column (6) being fixed to the pad (5) by welding.

5. The hot pressing target demoulding tooling according to claim 1, characterized in that: The auxiliary tooling also includes a plurality of support assemblies (8), the support assemblies (8) being arranged at intervals around the outer circumference of the cylinder (3), and the support assemblies (8) being used to provide a clearance distance between the cylinder (3) and the ground (11); the support assembly (8) includes a support block (81) and a support rod (82), the support block (81) being welded and fixed to the hoop plate (31), and the support block (81) being provided with a plug-in groove; one end of the support rod (82) is in contact with the ground (11), and the other end of the support rod (82) is plugged into the plug-in groove.

6. The hot pressing target demoulding tooling according to claim 5, characterized in that: The support rod (82) is a telescopic rod.

7. The hot pressing target demoulding tooling according to claim 6, characterized in that: The support rod (82) comprises an inner tube (821), an outer tube (822) and a spring buckle (823) which are telescopically arranged; the spring buckle (823) is arranged on the inner tube (821), and along the length direction of the outer tube (822), the outer tube (822) is provided with a plurality of communication holes (8221) for the spring buckle (823) to pass through at intervals.

8. The hot pressing target demoulding tooling according to claim 6, characterized in that: The support assembly (8) further comprises a flexible member (10), wherein the flexible member (10) is wrapped around two ends of the support rod (82).

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