Adjustable positioning charging tool

By using adjustable positioning furnace tooling during the sintering of powder metallurgical products, the concentric alignment of the graphite disk is ensured, and the uneven stress problem of the product caused by the dislocation between the graphite disk layers is solved, and the uniform stress of the product is achieved under high temperature and high pressure is avoided, thereby avoiding the risk of graphite disk breakage and the collapse of the entire furnace product.

CN119525498APending Publication Date: 2025-02-28GUIZHOU XINAN AVIATION MACHINING CO LTD
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Patent Information

Application Number
CN202411937304.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

During the sintering of powder metallurgical products, the misalignment between the graphite disk layers will lead to uneven stress of the products under high temperature and high pressure, resulting in fracture of the graphite disk and collapse of the entire furnace product, which will lead to economic losses.

Method used

The adjustable positioning furnace tooling is adopted, including the sway positioning tooling mechanism and the positioning benchmark assembly. By threaded connection of the shaft, positioning plate, T-shaped concentric pressure bearing plate and concentric plate, the concentric alignment of the graphite disk is achieved to ensure that the products are subjected to uniform stress under high temperature and high pressure.

Benefits of technology

The center hole of the graphite disk is aligned and limited by the concentric plate and the T-shaped concentric pressure-bearing plate to ensure that all graphite disks are concentric, avoiding graphite disk fractures caused by shear force and collapse of the entire furnace product, reducing the risk of economic losses.

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Abstract

The invention discloses an adjustable positioning charging tool, and relates to the technical field of charging tools, the adjustable positioning charging tool comprises a wobble plate positioning tool mechanism and a position marker post assembly, the wobble plate positioning tool mechanism comprises a wobble plate tool assembly and a pointing assembly, the wobble plate tool assembly comprises a threaded connecting shaft, a positioning plate, a T-shaped concentric bearing plate, a concentric plate, seven nuts and two graphite plates, the pointing assembly is movably arranged in a second through hole, and the position marker post assembly is arranged on one side of the pointing assembly. The positioning plate, the T-shaped concentric bearing plate and the concentric plate can be quickly assembled and disassembled from the threaded connection shaft by screwing out the corresponding nuts, the assembly and disassembly are convenient, the placement is convenient and quick, and the concentric plates and the T-shaped concentric bearing plate are used for aligning and limiting the center holes of the two adjacent layers of graphite plates, so that the concentricity of all the graphite plates can be ensured, and the service life of the graphite plates is prolonged. The positions for placing the products on each layer are the same and are aligned up and down.
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Description

Technical Field

[0001] The invention relates to the technical field of furnace loading tooling, and in particular to a furnace loading tooling with adjustable positioning. Background Art

[0002] The sintering process of powder metallurgy products needs to be carried out in a high-temperature and high-pressure pressurized furnace, and the sintered products need to be placed on graphite disks. The graphite disks on which the products are placed are stacked layer by layer to the effective height of the pressurized furnace, and all graphite disks must be concentric.

[0003] During the sintering process of powder metallurgy products, if the layers of the sintered products are not aligned, there will be a misalignment between the upper and lower layers. Under high temperature and high pressure, the products will be subjected to non-coaxial forces, which will cause shear force on the graphite disk, causing the graphite disk to break and the entire furnace of products to collapse, which will lead to the scrapping of the entire furnace of products and cause economic losses. Summary of the invention

[0004] The object of the present invention is to provide an adjustable positioning furnace loading tool to solve at least any one of the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: an adjustable positioning furnace loading tooling, comprising a swing plate positioning tooling mechanism and a position benchmark assembly, wherein the swing plate positioning tooling mechanism comprises a swing plate tooling assembly and a pointing assembly; The wobble plate tooling assembly includes a threaded connection shaft, a positioning plate, a T-shaped concentric pressure plate, a concentric plate, seven nuts and two graphite plates. A center hole is opened in the middle of the top of the two graphite plates. The outer diameter of the protruding part of the T-shaped concentric pressure plate matches the center hole of the graphite plate. The outer diameter of the T-shaped part of the T-shaped concentric pressure plate is larger than the center hole of the graphite plate. The positioning plate, the T-shaped concentric pressure plate and the middle position of the top of the concentric plate are all opened with a first through hole. The positioning plate, the T-shaped concentric pressure plate and the concentric plate are sequentially sleeved from one end of the threaded connection shaft through the first through hole. The positioning plate, the T-shaped concentric pressure plate and the concentric plate are inserted into the threaded connection shaft, the top and bottom of each of the positioning plate, the T-shaped concentric pressure plate and the concentric plate are provided with a nut, and the nut is threadedly connected to the threaded connection shaft, and another nut is threadedly connected to the threaded connection shaft near the top, the outer diameter of the concentric plate matches the center hole of the graphite disk and the concentric plate is placed in the center hole of one of the graphite disks, and the other graphite disk is arranged below the T-shaped concentric pressure plate and the protruding portion is inserted into the center hole of the graphite disk, and a second through hole is opened near the top of the threaded connection shaft above the highest nut; The pointing component is movably arranged in the second through hole, and the position marker component is arranged on one side of the pointing component.

[0006] Preferably, the pointing assembly includes an indicator rod, which is movably inserted into the second through hole, with one end of the indicator rod inserted into the second through hole by one-third of its length, and after the indicator rod is inserted into the second through hole, the longer end points to the position marker assembly.

[0007] Preferably, the position pole assembly comprises a base and a pole, a threaded ring is provided at one end of the pole, a threaded hole matching the threaded ring on the pole is provided at the middle position of the top wall of the base, and the threaded ring is threadedly connected to the threaded hole.

[0008] Preferably, a circular lightening groove is provided on the top wall of the positioning plate.

[0009] Preferably, the positioning plate is a polygonal plate, and products are placed on the top wall of the graphite disk corresponding to each side of the positioning plate.

[0010] Preferably, the outer diameter of the protruding portion of the T-shaped concentric pressure plate is the same as the outer diameter of the concentric plate.

[0011] The beneficial effects of the present invention are as follows: 1. The positioning plate, T-shaped concentric pressure plate and concentric plate can be quickly loaded and unloaded from the threaded connection shaft by unscrewing the corresponding nuts. It is easy to disassemble and assemble, and can be placed conveniently and quickly. It can be reused. The height of the positioning tooling can be adjusted according to the size of the product, and only different positioning plates need to be replaced. The tooling is small in size and low in manufacturing cost.

[0012] 2. The concentric plates and T-shaped concentric pressure plates are used to align and limit the center holes of two adjacent layers of graphite disks, which can ensure that all graphite disks are concentric, and the products on each layer are placed in the same position and aligned up and down, so that the products are evenly stressed at high temperature and high pressure, avoiding the shear force on the graphite disk, which may cause the graphite disk to break and cause the collapse of the entire furnace products, eliminating the potential risk of scrapping the entire furnace products and reducing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention.

[0014] In the figure: 1. indicator rod; 2. threaded connecting shaft; 3. product; 4. graphite disk; 5. concentric plate; 6. nut; 7. positioning plate; 8. base; 9. benchmark rod; 10. T-shaped concentric pressure plate; 11. circular relief groove; 12. first through hole; 13. center hole; 14. second through hole; 15. threaded ring; 16. threaded hole. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] The present invention provides Figure 1-5 The adjustable positioning furnace loading tool shown includes a swing plate positioning tool mechanism and a position marker assembly, and the swing plate positioning tool mechanism includes a swing plate tool assembly and a pointing assembly; The wobble plate tooling assembly includes a threaded connection shaft 2, a positioning plate 7, a T-shaped concentric pressure plate 10, a concentric plate 5, seven nuts 6 and two graphite plates 4. A center hole 13 is provided in the middle of the top of each of the two graphite plates 4. The outer diameter of the protruding portion of the T-shaped concentric pressure plate 10 matches the center hole 13 of the graphite plate 4. The outer diameter of the T-shaped portion of the T-shaped concentric pressure plate 10 is larger than the center hole 13 of the graphite plate 4. A first through hole 12 is provided in the middle of the top of the positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5. The positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5 are sequentially sleeved from one end of the threaded connection shaft 2 through the first through hole 12. Inserted onto the threaded connection shaft 2, a nut 6 is provided at the top and bottom of the positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5, and the nut 6 is threadedly connected to the threaded connection shaft 2, and another nut 6 is threadedly connected to the threaded connection shaft 2 near the top, the outer diameter of the concentric plate 5 matches the center hole 13 of the graphite disk 4, and the concentric plate 5 is placed in the center hole 13 of one of the graphite disks 4, and the other graphite disk 4 is arranged below the T-shaped concentric pressure plate 10 and the protruding portion is inserted into the center hole 13 of the graphite disk 4, and a second through hole 14 is opened near the top of the threaded connection shaft 2 above the highest nut 6; The pointing component is movably disposed in the second through hole 14 , and the position marker component is disposed on one side of the pointing component.

[0017] When it is necessary to place the product 3, first screw the threaded ring 15 at one end of the benchmark rod 9 into the threaded hole 16 on the base 8 to complete the assembly of the position benchmark rod assembly, and then place the position benchmark rod assembly arbitrarily next to the base of the pressurized furnace (the pressurized furnace can only be removed after the position benchmark rod assembly is fixed and the furnace is installed), and then sequentially thread the positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5 through the first through hole 12 on the threaded connection shaft 2, and tighten the nuts 6 at the top and bottom corresponding to the positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5 toward the middle to fix the positioning plate 7, the T-shaped concentric pressure plate 10 and the concentric plate 5, and then insert the indicator rod 1 into the second through hole 14, tighten the corresponding nut 6 under the indicator rod 1 to squeeze the indicator rod 1 so as to fix the indicator rod 1, and complete the assembly of the swing plate tooling assembly, and then place the swing plate tooling, align the long end of the indicator rod 1 with the position benchmark rod, And put the concentric plate 5 into the center hole 13 of the first layer of graphite disk 4, the concentric plate 5 and the center hole 13 are matched, and then adjust the height of the T-shaped concentric pressure plate 10 to put the T-shaped concentric pressure plate 10 into the center hole 13 of the second layer of graphite disk 4 to ensure that the two layers of graphite disk 4 are concentric, and then adjust the height of the positioning plate 7 (the positioning plate 7 is a polygonal plate, and the number of edges is designed according to the number of products 3 placed) according to the height of the product 3, align the products 3 with several edges of the positioning plate 7, and after one layer is placed, take out the plate-staggering tooling, put another layer of graphite disk 4, and re-place the plate-staggering tooling without adjusting the tooling height. Align the long end of the indicator rod 1 with the position benchmark, and insert the concentric plate 5 and the T-shaped concentric pressure plate 10 into the center hole 13 of the lower layer and the plate-staggering layer graphite disk 4 respectively. Then align the products 3 with several edges of the positioning plate 7, repeat the placement of the plate-staggering tooling to place the products 3 until the plate-staggering is completed.

[0018] The pointing assembly includes an indicator rod 1, which is movably inserted into the second through hole 14. One end of the indicator rod 1 is inserted into the second through hole 14 by one-third of its length. After the indicator rod 1 is inserted into the second through hole 14, the longer end points to the position marker assembly. The position marker assembly includes a base 8 and a marker 9. A threaded ring 15 is provided at one end of the marker 9. A threaded hole 16 matching the threaded ring 15 on the marker 9 is provided in the middle position of the top wall of the base 8, and the threaded ring 15 is threadedly connected to the threaded hole 16.

[0019] The staff first screws the threaded ring 15 at one end of the marker 9 into the threaded hole 16 on the base 8 to complete the assembly of the position marker assembly, and then places the position marker assembly arbitrarily next to the base of the pressurized furnace, and inserts the indicator rod 1 into the second through hole 14. When the indicator rod 1 is inserted to the one-third position, the insertion is stopped, and the top nut 6 is screwed to make the nut 6 squeeze the indicator rod 1 and fix the indicator rod 1 in the second through hole 14, and then the long end of the indicator rod 1 is aligned with the position marker to complete the pointing.

[0020] A circular lightening groove 11 is formed on the top wall of the positioning plate 7 .

[0021] The circular lightening groove 11 does not affect the normal use of the positioning plate 7, but also reduces the weight of the positioning plate 7 itself, making the threaded connection shaft 2 more stable when in use, and will not cause itself to shake or deflect due to the positioning plate 7 being too heavy.

[0022] The positioning plate 7 is a polygonal plate, and products 3 are placed on the top wall of the graphite disk 4 corresponding to each side of the positioning plate 7 .

[0023] The positioning plate 7 can be produced in various specifications of the number of sides, which is determined by the actual use situation, and is convenient for replacement and can meet different placement requirements.

[0024] The outer diameter of the protruding portion of the T-shaped concentric pressure plate 10 is the same as the outer diameter of the concentric plate 5 .

[0025] The concentric plate 5 is placed in the center hole 13 of the first layer of graphite disk 4, and the protruding portion of the T-shaped concentric pressure plate 10 can be inserted into the center hole 13 of the second layer of graphite disk 4 to ensure that the two layers of graphite disk 4 are concentric.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Adjustable positioning furnace loading tooling, characterized by: It includes a swing plate positioning fixture mechanism and a position benchmark assembly, wherein the swing plate positioning fixture mechanism includes a swing plate fixture assembly and a pointing assembly; The wobble plate tooling assembly comprises a threaded connection shaft (2), a positioning plate (7), a T-shaped concentric pressure plate (10), a concentric plate (5), seven nuts (6) and two graphite plates (4); a center hole (13) is provided in the middle of the top of each of the two graphite plates (4); the outer diameter of the protruding portion of the T-shaped concentric pressure plate (10) matches the center hole (13) of the graphite plate (4); the outer diameter of the T-shaped portion of the T-shaped concentric pressure plate (10) is larger than the center hole (13) of the graphite plate (4); a first through hole (12) is provided in the middle of the top of each of the positioning plate (7), the T-shaped concentric pressure plate (10) and the concentric plate (5); the positioning plate (7), the T-shaped concentric pressure plate (10) and the concentric plate (5) are sequentially connected from the threaded connection shaft (2) through the first through hole (12). One end of the concentric plate (5) is inserted into the threaded connection shaft (2); a nut (6) is provided at the top and bottom of the positioning plate (7), the T-shaped concentric pressure plate (10) and the concentric plate (5), and the nut (6) is threadedly connected to the threaded connection shaft (2); another nut (6) is threadedly connected to the threaded connection shaft (2) near the top; the outer diameter of the concentric plate (5) matches the center hole (13) of the graphite disk (4) and the concentric plate (5) is placed in the center hole (13) of one of the graphite disks (4); the other graphite disk (4) is arranged below the T-shaped concentric pressure plate (10) and the protruding portion is inserted into the center hole (13) of the graphite disk (4); a second through hole (14) is provided near the top of the threaded connection shaft (2) above the highest nut (6); The pointing component is movably arranged in the second through hole (14), and the position marker component is arranged on one side of the pointing component.

2. The adjustable positioning furnace loading tool according to claim 1 is characterized in that: The pointing assembly comprises an indicator rod (1), the indicator rod (1) being movably inserted into the second through hole (14), one end of the indicator rod (1) being inserted into the second through hole (14) by one third of its length, and the longer end of the indicator rod (1) pointing to the position marking rod assembly after being inserted into the second through hole (14).

3. The adjustable positioning furnace loading tool according to claim 1 is characterized in that: The position marker assembly comprises a base (8) and a marker (9), one end of the marker (9) is provided with a threaded ring (15), a threaded hole (16) matching the threaded ring (15) on the marker (9) is provided in the middle of the top wall of the base (8), and the threaded ring (15) is threadedly connected to the threaded hole (16).

4. The adjustable positioning furnace loading tool according to claim 1 is characterized in that: The top wall of the positioning plate (7) is provided with a circular lightening groove (11).

5. The adjustable positioning furnace loading tool according to claim 1 is characterized in that: The positioning plate (7) is a polygonal plate, and a product (3) is placed on the top wall of the graphite disk (4) corresponding to each side of the positioning plate (7).

6. The adjustable positioning furnace loading tool according to claim 1 is characterized in that: The outer diameter of the protruding portion of the T-shaped concentric pressure-bearing plate (10) is the same as the outer diameter of the concentric plate (5).