Valve plate press-fitting tool seat
By using evenly distributed positioning holes and adjustable positioning pins in the valve plate pressing fixture, combined with limit blocks and limit grooves, the single compatibility problem of the integral fixture is solved, enabling rapid and accurate pressing of multiple valve plate models, reducing costs and operational difficulty, and improving pressing efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU COMPRISON NEW ENERGY TECH CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the single adaptability of the integral press-fitting fixture means that each change of valve plate model requires redesign, processing and management, which is costly and difficult to maintain, and is difficult to adapt to multi-variety, small-batch production.
By employing evenly distributed positioning holes and flexibly configurable positioning pins, combined with limit blocks and limit grooves, a single tooling base can be adapted to various valve plate models. Through the design of reserved space and limit grooves, pressing accuracy and convenient operation are ensured.
It improves the versatility and pressing accuracy of the tooling base, reduces tooling debugging and changeover time, and enhances yield and operational safety.
Smart Images
Figure CN224575533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve plate press-fitting technology, and in particular to a valve plate press-fitting fixture. Background Technology
[0002] The valve plate is a core component in precision fluid elements such as compressors and hydraulic valves. It typically has complex flow channels and mounting holes. One of the core assembly processes of the valve plate assembly is to precisely press-fit a thin, precision-shaped part, the valve plate, which is used to open and close the flow channels, into specific holes and grooves in the valve plate. The valve plate press-fit fixture is a special fixture used in this press-fit process to support, position, and limit the valve plate and valve plate. Its core function is to ensure that the valve plate is reliably fixed during the press-fit process and does not move or rotate. At the same time, it ensures that the position and pressing depth of the valve plate relative to the flow channel holes of the valve plate have extremely high consistency accuracy. A qualified fixture is the key to ensuring the performance of the final product.
[0003] Existing technologies commonly employ integral, dedicated press-fitting fixtures with a cavity that matches the outline of the target valve plate for placing and circumferentially limiting the valve plate. Since the positioning function of this fixture relies entirely on its integrally machined cavity, the shape and size of which are custom-made for a specific valve plate model. This means that for each new valve plate model produced, a dedicated press-fitting fixture must be redesigned, machined, managed, and stored. This not only results in significant tooling manufacturing costs, warehousing management costs, and changeover / adjustment time, making it unsuitable for the modern trend of multi-variety, small-batch production, but also, after long-term use, this integral cavity structure is prone to valve plate misalignment after localized wear or damage, increasing the defect rate of valve plate assembly and often requiring replacement of the entire fixture, leading to high maintenance costs.
[0004] Therefore, a press-fitting tooling solution that can solve the above-mentioned single adaptability problem is needed. Utility Model Content
[0005] In view of at least one of the above technical problems, the present invention provides a valve plate press-fitting fixture, which flexibly configures positioning pins in evenly distributed positioning holes and uses a limiting block with valve plate groove to position the valve plate, thereby realizing the function of one set of fixtures being adaptable to multiple valve plate models.
[0006] This utility model provides a valve plate press-fitting fixture, comprising: The base has a mounting platform on one side, a press-fit hole in the center of the base, and a plurality of evenly spaced positioning holes on the mounting platform, the positioning holes penetrating the base. A positioning pin is disposed within part of the positioning hole; A limiting block is installed above the mounting platform and is fixedly connected to the positioning pin. A valve plate groove is opened on the side of the limiting block facing the press-fit hole. The limiting block and the mounting platform are provided with a reserved space to accommodate the valve plate.
[0007] In some embodiments of this utility model, a limiting groove is provided on the mounting platform, the limiting groove connects the pressing hole and the side wall of the mounting platform, and a limiting rod is provided in the limiting groove.
[0008] In some embodiments of this utility model, the pressing hole penetrates the mounting platform and the base, and one end of the limiting rod extends out of the limiting groove and is close to the center of the pressing hole.
[0009] In some embodiments of this utility model, multiple limiting grooves are spaced apart on the mounting platform and distributed at intervals with the positioning holes.
[0010] In some embodiments of this utility model, a stop block is provided on the inner wall of the press-fit hole, and the stop block is close to the mounting platform.
[0011] In some embodiments of this utility model, an installation hole is provided in the press-fit hole, and the installation hole connects the press-fit hole and the bottom of the base.
[0012] In some embodiments of this utility model, a fixing member is provided inside the mounting hole.
[0013] In some embodiments of this utility model, one end of the fixing member is flush with the bottom plane of the base, and the other end extends into the pressing hole near the top of the mounting platform.
[0014] In some embodiments of this utility model, a fixing hole is provided on the base.
[0015] The beneficial effects of this utility model are as follows: By setting a mounting platform with multiple evenly distributed positioning holes and flexibly selectable positioning pins, this utility model achieves the purpose of quickly and accurately positioning and pressing various types of valve plates with only one set of tooling, effectively improving the versatility of the tooling base and increasing the yield rate of valve plate assembly; by setting a reserved space between the limiting block and the mounting platform, it achieves the purpose of providing a convenient operating area for picking up and putting down the valve plate, effectively avoiding interference with the pressing equipment, and improving the safety and convenience of operation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the valve plate press-fitting fixture in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the structure of the tooling base when the valve plate assembly is placed in Embodiment 1 of this utility model; Figure 3 for Figure 2 Cross-sectional view at point AA; Figure 4 This is a schematic diagram of the valve plate press-fitting fixture in Embodiment 2 of this utility model; Figure 5 for Figure 4 Cross-sectional view at point BB; Figure 6 This is a schematic diagram of the structure of the tooling seat when the valve plate assembly is placed in Embodiment 2 of this utility model; Figure 7 for Figure 6 Cross-sectional view at CC.
[0018] Reference numerals in the attached drawings: 1. Base; 101. Mounting platform; 1011. Positioning hole; 1012. Limiting groove; 1013. Limiting rod; 102. Press-fitting hole; 1021. Stop block; 1022. Mounting hole; 1023. Fixing component; 103. Fixing hole; 2. Positioning pin; 3. Limiting block; 301. Valve plate groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0022] This utility model provides a method such as Figures 1 to 7 The valve plate press-fit fixture shown includes: The base 1 has a mounting platform 101 on one side, a press-fit hole 102 in the center of the base 1, and a number of evenly spaced positioning holes 1011 on the mounting platform 101, with the positioning holes 1011 penetrating the base 1. Positioning pin 2 is set inside part of positioning hole 1011; The limiting block 3 is installed above the mounting platform 101 and is fixedly connected to the positioning pin 2. The limiting block 3 has a valve plate groove 301 on the side facing the press-fit hole 102. Among them, a reserved space for accommodating the valve plate is provided between the limit block 3 and the mounting platform 101.
[0023] A valve plate screw is inserted into the press-fit hole 102, and the positioning pin 2 is inserted into the corresponding positioning hole 1011 according to the valve plate model. The intake valve plate and the valve plate corresponding to the valve plate screw and positioning pin 2 are placed on the mounting platform 101 in sequence. Then, the valve plate groove 301 is selected to correspond to the outline of the valve plate to be press-fitted. The limiting block 3 is fixed above the mounting platform 101 by the positioning pin 2. At this time, the limiting plate of the exhaust valve plate and the valve plate can be stacked on the valve plate in sequence along the valve plate groove 301 opened on the limiting block 3. Finally, the valve plate nut can be screwed into the valve plate screw to drive the limiting plate to gradually press the valve plate with the valve plate. When it is necessary to remove the press-fitted valve plate assembly, simply tighten the valve plate nut to remove the limiting block 3 and the valve plate upwards. This allows a single tooling unit to quickly adapt to numerous valve plate models by adjusting the layout of the positioning pins 2 and replacing the limit blocks 3, significantly reducing tooling debugging and changeover time. By using the local constraints and reserved space of the valve plate groove 301 to accommodate the valve plate, the accuracy of the pressed valve plate is ensured, while also reducing the difficulty of the pressing operation and improving the convenience of the overall pressing process.
[0024] Example 1, as Figures 1 to 3 As shown: In some embodiments of this utility model, a limiting groove 1012 is provided on the mounting platform 101. The limiting groove 1012 connects the pressing hole 102 and the side wall of the mounting platform 101, and a limiting rod 1013 is provided in the limiting groove 1012. The limiting groove 1012 provides a path for installing the limiting rod 1013, allowing the operator to insert the limiting rod 1013 from the side of the tooling and extend it into the pressing hole 102 area. When it is necessary to press the intake and exhaust valve plates directly onto the valve cover together with the valve plate, the valve cover needs to be positioned when placed on the mounting platform 101. During the pressing process, it is also necessary to avoid the valve cover from shifting to achieve better pressing accuracy. Therefore, the limiting rod 1013 in the limiting groove 1012 extends into the valve cover to limit the valve cover's shift and rotation, ensuring that the valve cover is always in the correct position, aligning the valve plate assembly with the valve cover, and pressing it in.
[0025] Based on the above embodiment, the press-fit hole 102 penetrates the mounting platform 101 and the base 1, and one end of the limiting rod 1013 extends out of the limiting groove 1012 near the center of the press-fit hole 102. The through press-fit hole 102 can accommodate the valve body, and the valve cover can have a through hole corresponding to the limiting rod 1013. The valve body is lowered so that the through hole on the valve cover is at the same height as the limiting rod 1013. In this way, one end of the limiting rod 1013 extending out of the limiting groove 1012 can more easily extend into the through hole to limit the rotation of the valve cover. The limiting effect is more reliable and stable, providing a solid foundation for the press-fitting of the valve plate assembly.
[0026] Based on the above embodiments, multiple limiting grooves 1012 are spaced apart on the mounting platform 101, distributed at intervals with the positioning holes 1011. This means that the operator can select the most suitable angle position to place the limiting rod 1013 according to the shape and structural characteristics of different valve covers. One set of tooling can flexibly adapt to a variety of valve covers with different shapes and sizes. By selecting different limiting grooves 1012 to install the limiting rod 1013, the most effective anti-displacement support can be provided for different valve covers, further expanding the application range of valve plate press-fit tooling.
[0027] Based on the above embodiment, a stop 1021 is provided on the inner wall of the press-fit hole 102, and the stop 1021 is close to the mounting platform 101. The stop 1021 forms a raised annular step or local support point on the inner wall of the press-fit hole 102. When the operator places the valve plate assembly into the press-fit hole 102, the protruding structures on the assembly, such as the lower surface of the valve cover, will fall on the stop 1021 and be reliably supported. This prevents the valve plate assembly from falling due to its own weight or the incomplete establishment of pressure in the early stage of press-fitting before press-fitting, maintains its predetermined press-fitting starting height, and ensures the smoothness and accuracy of the press-fitting process.
[0028] Example 2, as Figures 4 to 7 As shown: In some embodiments of this utility model, a mounting hole 1022 is provided in the press-fit hole 102, and the mounting hole 1022 connects the press-fit hole 102 with the bottom of the base 1.
[0029] Based on the above embodiment, a fastener 1023 is provided inside the mounting hole 1022.
[0030] Based on the above embodiments, one end of the fastener 1023 is flush with the bottom plane of the base 1, and the other end extends into the press-fit hole 102 near the top of the mounting platform 101.
[0031] The mounting hole 1022 forms a channel at the bottom of the pressing hole 102, leading directly to the workpiece area. This provides a path for the installation and operation of the fastener 1023. Utilizing the original center process hole or valve plate screws of the valve plate assembly itself, a method is provided to fix the valve plate assembly with pressing function from the bottom of the valve plate pressing fixture. The fastener 1023 extends into the pressing hole 102 area through the mounting hole 1022. The upper end of the fastener 1023 can be directly fixed to the center process hole or valve plate screws at the bottom of the valve plate assembly, further fixing the position of the valve plate assembly and effectively preventing arbitrary movement. One end of the fastener 1023 is flush with the bottom of the base 1, ensuring that the bottom of the fixture is a complete plane. This allows the entire fixture to be placed stably on the press table or working surface without shaking due to the protrusion of the fastener 1023, ensuring the stability of the pressing process. The cooperation between multiple structures results in higher overall pressing accuracy and a better yield rate for the valve plate pressing fixture.
[0032] In some embodiments of this utility model, such as Figure 2 As shown, a fixing hole 103 is provided on the base 1. The valve plate pressing fixture is fixed on the press worktable or working plane through the fixing hole 103. When the pressing begins to apply huge pressure, the fixture base 1 and the worktable are rigidly connected by bolts in the fixing hole 103, which ensures that all forces are transmitted along the preset and precise path, and will not be dissipated or deviated due to the slight shaking of the valve plate pressing fixture.
[0033] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A valve plate press fitting tool seat, characterized by, include: A base (1) has a mounting platform (101) on one side. A press-fit hole (102) is provided in the center of the base (1). A plurality of evenly spaced positioning holes (1011) are provided on the mounting platform (101). The positioning holes (1011) penetrate the base (1). A positioning pin (2) is provided in part of the positioning hole (1011); A limiting block (3) is installed above the mounting platform (101) and is fixedly connected to the positioning pin (2). The limiting block (3) has a valve plate groove (301) on the side facing the press-fit hole (102). Among them, a reserved space for accommodating the valve plate is provided between the limiting block (3) and the mounting platform (101).
2. The valve plate press fitting tool seat according to claim 1, characterized in that, A limiting groove (1012) is provided on the mounting platform (101), the limiting groove (1012) connects the pressing hole (102) and the side wall of the mounting platform (101), and a limiting rod (1013) is provided in the limiting groove (1012).
3. The valve plate press fitting tool seat according to claim 2, characterized in that, The press-fit hole (102) passes through the mounting platform (101) and the base (1), and one end of the limiting rod (1013) extends out of the limiting groove (1012) and is close to the center of the press-fit hole (102).
4. The valve plate press fitting tool seat according to claim 3, characterized in that, Multiple limiting grooves (1012) are spaced apart on the mounting platform (101) and distributed at intervals with the positioning holes (1011).
5. The valve plate press fitting tool seat according to claim 3, characterized in that, A stop (1021) is provided on the inner wall of the press hole (102), and the stop (1021) is close to the mounting platform (101).
6. The valve plate press fitting tool seat according to claim 1, characterized in that, An installation hole (1022) is provided in the press-fit hole (102), and the installation hole (1022) connects the press-fit hole (102) with the bottom of the base (1).
7. The valve plate press fitting tool seat according to claim 6, characterized in that, A fastener (1023) is provided inside the mounting hole (1022).
8. The valve plate press fitting tool seat according to claim 7, characterized in that, One end of the fastener (1023) is flush with the bottom plane of the base (1), and the other end extends into the press-fit hole (102) near the top of the mounting platform (101).
9. The valve plate press fitting tool seat according to any one of claims 1 to 8, characterized in that, Fixing holes (103) are provided on the base (1).