Lower bearing seat die
By designing a lower bearing seat mold with a central block, connecting block and hydraulic rod, the problems of cracks and automatic demolding of traditional molds under high temperature conditions are solved, automatic demolding and efficiency improvement are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202421019009.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Traditional lower bearing seat molds are prone to cracks under high temperature conditions, resulting in low production efficiency and high cost. At the same time, the lower bearing seat after powder metallurgy molding is difficult to automatically release, affecting production efficiency.
Design a lower bearing seat mold including an upper punch and a lower punch seat. By setting up a central block, a connecting block, a movable block and a hydraulic rod, an annular forming space is formed. The movable block can move up and down along the forming space, and the hydraulic rod can be telescopicly driven. The movable block ejects the lower bearing seat to achieve automatic mold release.
The automatic mold release of the lower bearing seat is realized, which simplifies operation, improves the efficiency of powder metallurgy manufacturing, reduces production costs, and extends the service life of the mold.
Smart Images
Figure CN222307351U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mold casting, and more particularly to a mold for a lower bearing seat, and more particularly to a mold for manufacturing a lower bearing seat by powder metallurgy. Background Art
[0002] The lower bearing seat is an important component of the compressor. The lower bearing seat is used to support the bearing and fix the outer ring of the bearing, allowing only the inner ring to rotate while the outer ring remains stationary, always keeping consistent with the transmission direction and maintaining balance.
[0003] The manufacture of the lower bearing seat is usually carried out by casting with a mold. In the production process of the lower bearing seat using the traditional casting process, if the temperature is too high, it is easy to cause cracks to appear on the surface of the mold core early. Some lower bearing seat molds have cracks on a large area before they are used for more than 2,000 times. At the same time, the use of a release agent for rapid demoulding under high temperature is also a major factor that causes the mold to crack easily, which ultimately leads to deformation and strain of the produced products.
[0004] At present, powder metallurgy technology is gradually being used to manufacture bearing seats. However, in the existing powder metallurgy production process, the pressed products are usually demolded from above and dropped to a receiving device, and then pushed to a conveying mechanism. Falling from above can easily cause impact on the receiving device. On the one hand, it can easily cause damage to the surface of the receiving device, which is not conducive to smoothly pushing the product to the conveying mechanism. On the other hand, it will also have a certain impact on the external shape of the product. Utility Model Content
[0005] The purpose of the present application is to provide a lower bearing seat mold to address the problems in the above-mentioned prior art. The lower bearing seat is produced by powder metallurgy. The molded lower bearing seat can be automatically demoulded in the mold and has a simple structure.
[0006] To achieve the above objectives, the technical solutions adopted in this application are as follows:
[0007] The present application also provides a powder metallurgy mold for a lower bearing seat, which is used to manufacture the lower bearing seat as described above, including an upper punch and a lower punch seat, the lower punch seat forms a cylindrical cavity relative to the upper punch, a center block is arranged in the cylindrical cavity, the bottom of the center block is connected to the lower punch seat through a connecting block, so that an annular molding space is formed between the center block and the lower punch seat, a plurality of movable blocks are arranged in the molding space, the movable blocks are arranged through the gaps formed between the connecting blocks, and the movable blocks can move up and down along the molding space; a hydraulic rod is arranged at the bottom of the movable block, and the hydraulic rod is retracted to move the movable block up and down.
[0008] Optionally, the edges of the movable block and the connecting block fit together, and the tops of the movable block and the connecting block are flush, so that the tops of the connecting block and the movable block form the bottom of the molding space.
[0009] Optionally, the width of the movable block is adapted to the annular width of the molding space.
[0010] Optionally, the top of the movable block is connected to a push plate, the cross section of the push plate is the same as the cross section of the molding space, the movable block can drive the push plate to slide up and down, and the top of the push plate forms the bottom of the molding space.
[0011] Optionally, the number of the movable blocks is three, and the three movable blocks are evenly distributed in the molding space in a ring shape.
[0012] Optionally, the bottom ends of the three movable blocks are connected by a connecting plate.
[0013] Optionally, a hydraulic rod is arranged under the connecting plate, there are three hydraulic rods, and the hydraulic rods and the movable blocks are arranged in one-to-one correspondence.
[0014] Optionally, a protrusion adapted to the shape of the bottom of the lower bearing seat is arranged on the top of the center block.
[0015] The beneficial effects of the present application include: a lower bearing seat mold provided by the present application is used for manufacturing a lower bearing seat by powder metallurgy, comprising an upper punch and a lower punch seat, the lower punch seat forming a cylindrical cavity relative to the upper punch, a center block being arranged in the cylindrical cavity, the bottom of the center block being connected to the lower punch seat by a connecting block, so that an annular molding space is formed between the center block and the lower punch seat, a plurality of movable blocks being arranged in the molding space, the movable blocks being arranged through the gaps formed between the connecting blocks, and the movable blocks being movable up and down along the molding space; a hydraulic rod being arranged at the bottom of the movable block, the hydraulic rod being retracted to move the movable block up and down, the movable block ejecting the molded lower bearing seat from the molding space, and automatic demolding of the lower bearing seat can be realized, the structure is simple, the operation is easy, and the efficiency of manufacturing the lower bearing seat by powder metallurgy is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 1 ;
[0018] Figure 2 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 2 ;
[0019] Figure 3A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 3 ;
[0020] Figure 4 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 4 ;
[0021] Figure 5 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 1 ;
[0022] Figure 6 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 2 ;
[0023] Figure 7 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 3 ;
[0024] Figure 8 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 4 ;
[0025] Fig. 9 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 5 ;
[0026] Fig.10 A schematic diagram of the structure of a lower bearing seat mold provided in an embodiment of the present application Figure 6 .
[0027] Icon: 110-lower punch seat; 111-center block; 112-connecting block; 120-movable block; 121-connecting plate; 122-push plate; 130-hydraulic rod; 140-cylindrical cavity; 150-forming space; 20-upper punch; 30-main body; 310-first through hole; 320-second through hole; 330-inner cavity; 340-base; 341-step groove. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.
[0030] During the production process of the lower bearing seat, if the temperature is too high, cracks will easily appear on the surface of the mold core early. Such a temperature is prone to cracks when the release agent is quenched, and the products produced are also prone to deformation, strain, etc. Therefore, the service life of the bearing seat mold is relatively short, and the cost of conventional casting production of bearing seat molds is relatively high, resulting in high production costs of the bearing seat. Therefore, powder metallurgy technology has gradually been used to manufacture bearing seats, but because of the special shape of the lower bearing seat, it is difficult to demold the lower bearing seat in the mold after molding, and it is necessary to shut down the equipment and manually remove it, which reduces production efficiency. The present application proposes a lower bearing seat mold, which produces the lower bearing seat by powder metallurgy. The lower bearing seat can be automatically demolded in the mold after molding, thereby improving production efficiency.
[0031] Reference Figure 1 , is a schematic diagram of the structure of the lower bearing seat produced by the embodiment of the present application, including a cylindrical main body 30, the two ends of the main body 30 are an opening and a base 340 respectively, the base 340 forms a circular stepped groove 341 toward the side of the opening, and the diameter of the stepped groove 341 is smaller than the diameter of the inner cavity 330 of the main body 30; the side wall of the base 340 relatively forms two first through holes 310, the first through holes 310 and the bottom surface of the stepped groove 341 are tangent, and the side wall of the main body 30 relatively forms two second through holes 320, the second through holes 320 are oblong holes extending along the axis direction of the main body 30, one end of the second through hole 320 is tangent to the bottom surface of the stepped groove 341, the first through hole 310 and the second through hole 320 have the same diameter, and the axis of the first through hole 310 is perpendicular to the axis of the second through hole 320; the lower bearing seat is formed by powder metallurgy. The use of powder metallurgy to produce the lower bearing seat can increase production efficiency and reduce production costs. Figure 2 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 2 ; Figure 3 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 3 ; Figure 4 A schematic diagram of the structure of a lower bearing seat provided in an embodiment of the present application Figure 4 .
[0032] Specifically, the embodiment of the present application provides a lower bearing seat mold for manufacturing the lower bearing seat described above, such as Figure 5 and Figure 6As shown, the powder metallurgy mold of the lower bearing seat includes an upper punch 20 and a lower punch seat 110. The lower punch seat 110 forms a cylindrical cavity 140 relative to the upper punch 20. A center block 111 is arranged in the cylindrical cavity 140. The bottom of the center block 111 is connected to the lower punch seat 110 through a connecting block 112, so that an annular molding space 150 is formed between the center block 111 and the lower punch seat 110. A plurality of movable blocks 120 are arranged in the molding space 150. The movable blocks 120 are arranged through the gaps formed between the connecting blocks 112, and the movable blocks 120 can move up and down along the molding space 150; a hydraulic rod 130 is arranged at the bottom of the movable block 120, and the hydraulic rod 130 is retracted to move the movable block 120 up and down. Through the relative movement of the upper punch 20 toward the lower punch seat 110, the lower bearing seat is manufactured by powder metallurgy in the molding space 150. The top of the center block 111 is provided with a step to form a stepped groove 341 of the lower bearing seat. It should be noted that the lower bearing seat produced by powder metallurgy still needs to be machined.
[0033] The hydraulic rod 130 is extended and retracted to drive the movable block 120 to move up and down, so as to push the lower bearing seat out of the molding space 150 to complete the demoulding. The structure is simple, the cost is low, and the demoulding efficiency is improved.
[0034] Specifically, in one embodiment of the present application, the edges of the movable block 120 and the connecting block 112 are fitted, and the tops of the movable block 120 and the connecting block 112 are flush, so that the tops of the connecting block 112 and the movable block 120 form the bottom of the molding space 150. The multiple movable blocks 120 can move up and down along the gaps between the connecting blocks 112 to demold the lower bearing seat.
[0035] Further, such as Fig. 9 As shown, the width of the movable block 120 is adapted to the annular width of the molding space 150 .
[0036] Specifically, in one embodiment of the present application, Fig.10 As shown, the top of the movable block 120 is connected to the push plate 122 , the cross section of the push plate 122 is the same as the cross section of the molding space 150 , the movable block 120 can drive the push plate 122 to slide up and down, and the top of the push plate 122 forms the bottom of the molding space 150 .
[0037] Furthermore, the number of the movable blocks 120 is three, and the three movable blocks 120 are evenly distributed in the molding space 150 in a ring shape. Figure 7 and Figure 8 , which is a schematic diagram of the structure in which the center block 111 and the lower punch seat 110 are connected through the connecting block 112 in an embodiment of the present application.
[0038] Furthermore, the bottom ends of the three movable blocks 120 are connected by a connecting plate 121 so that the movable blocks 120 are evenly stressed.
[0039] In the embodiment of the present application, the hydraulic rod 130 is arranged under the connecting plate 121 , there are three hydraulic rods 130 , and the hydraulic rods 130 and the movable blocks 120 are arranged in a one-to-one correspondence.
[0040] like Figure 7 As shown, a protrusion adapted to the shape of the bottom of the lower bearing seat is arranged at the top of the center block 111 to form a stepped groove 341 of the lower bearing seat.
[0041] The lower bearing seat mold provided in the embodiment of the present application adopts powder metallurgy to produce the lower bearing seat, which saves costs, can realize demoulding of the lower bearing seat, is easy to operate, and improves the production efficiency of powder metallurgy of the lower bearing seat.
[0042] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A lower bearing seat mold, characterized in that: The invention comprises an upper punch and a lower punch seat, wherein the lower punch seat forms a cylindrical cavity relative to the upper punch, a center block is arranged in the cylindrical cavity, and the bottom of the center block is connected to the lower punch seat through a connecting block, so that an annular forming space is formed between the center block and the lower punch seat, and a plurality of movable blocks are arranged in the forming space, wherein the movable blocks are arranged through the gaps formed between the connecting blocks, and the movable blocks can move up and down along the forming space; A hydraulic rod is arranged at the bottom of the movable block, and the hydraulic rod is retracted to enable the movable block to move up and down.
2. The lower bearing seat mold according to claim 1, characterized in that: The edges of the movable block and the connecting block are fitted, and the tops of the movable block and the connecting block are flush, so that the tops of the connecting block and the movable block form the bottom of the molding space.
3. The lower bearing seat mold according to claim 1, characterized in that: The width of the movable block is adapted to the annular width of the molding space.
4. The lower bearing seat mold according to claim 2, characterized in that: The top of the movable block is connected to a push plate, the cross section of the push plate is the same as the cross section of the molding space, the movable block can drive the push plate to slide up and down, and the top of the push plate forms the bottom of the molding space.
5. The lower bearing seat mold according to claim 2, characterized in that: The number of the movable blocks is three, and the three movable blocks are evenly distributed in the molding space in a ring shape.
6. The lower bearing seat mold according to claim 5, characterized in that: The bottom ends of the three movable blocks are connected through a connecting plate.
7. The lower bearing seat mold according to claim 6, characterized in that: The hydraulic rods are arranged under the connecting plate, there are three hydraulic rods, and the hydraulic rods and the movable blocks are arranged in one-to-one correspondence.
8. The lower bearing seat mold according to claim 1, characterized in that: The top of the center block is provided with a convex block which is adapted to the shape of the bottom of the lower bearing seat.