Combined piston pin bushing assembly press device

Abstract

The utility model provides a kind of combined piston pin inner sleeve assembly extrusion device, belong to mechanical engineering technical field, including bearing mechanism, including operation bench, fixed block being fixedly installed in the surface of operation bench;Positioning mechanism includes fixed plate being fixedly installed in the outer surface of operation bench, air cylinder being adaptively installed in the outer surface of fixed plate, fixed sleeve being fixedly installed in the output end of air cylinder, drive mechanism being arranged below air cylinder for fixed material, and quick-release assembly for the disassembly of different size clamps.The utility model passes through the reverse rotation driven wheel and the reverse thread threaded rod, makes internal thread block synchronous movement, realizes the firm clamping of piston pin, and deformed vice can automatically adjust shape according to piston pin pipe diameter, ensure close fit and firm clamping, without manual adjustment can be adapted to multiple specifications parts, ensure that piston pin inner sleeve is smoothly and accurately pressed into piston pin inside, improves assembly accuracy and efficiency, reduces operation complexity and damage risk.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, specifically relating to a combined piston pin inner fitting extrusion device. Background Technology

[0002] During engine operation, the piston pin, as a key component connecting the piston and connecting rod, bears the pressure of combustion gases and reciprocating inertial forces, and its performance directly affects the engine's reliability and lifespan. Modern medium-speed diesel engines mostly use oil cooling for the piston head. Lubricating oil passes through the connecting rod, piston pin oil passages, and piston pin seat to reach the top oil chamber, ensuring that critical components are adequately cooled and lubricated. Due to the pressure inside the oil passages, the sealing performance of the combined piston pin oil passages becomes particularly important. However, traditional piston pin internal assembly methods usually rely on manual operation or semi-automatic equipment, making it difficult to guarantee precise alignment and fit. This can easily lead to unstable assembly quality, affecting the oil passage sealing effect and overall performance. Therefore, an automated device capable of achieving efficient and precise assembly is needed, which is of great significance for improving the sealing performance and reliability of the piston pin and its oil passages.

[0003] In the existing technology, the traditional method of assembling piston pin inner sleeves usually relies on manual operation or semi-automatic equipment. This method not only requires complex adjustments and calibrations, but also makes it difficult to ensure the precise alignment and fit of the piston pin and its inner sleeve, resulting in unstable assembly quality, easy deviation or misalignment, and affecting product performance. In addition, due to the difference in the size of different specifications of parts, the equipment needs to be readjusted every time a part is replaced, which not only increases the operation time and complexity, but also reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a combined piston pin inner fitting compression device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined piston pin inner fitting compression device, including

[0007] The support mechanism includes an operating table, support legs fixedly installed at the bottom of the operating table, and a fixing block fixedly installed on the surface of the operating table;

[0008] The positioning mechanism includes a fixed plate fixedly installed on the outer surface of the operating table, a cylinder adapted to be installed on the outer surface of the fixed plate, a fixed sleeve fixedly installed on the output end of the cylinder, a drive mechanism disposed below the cylinder for fixing the material, and a quick-release assembly for disassembling clamps of different sizes.

[0009] The drive mechanism includes a positioning block fixedly mounted on the outer surface of the operating table, a motor adapted to be mounted on the outer surface of the positioning block, a drive wheel fixedly connected to the output end of the motor via a coupling, two driven wheels meshing with the surface of the drive wheel, a threaded rod fixedly connected to the two driven wheels, an internal threaded block threadedly connected to the threaded rod, and a positioning pin fixedly mounted on the outer surface of the fixed block for cooperating with the movement of the internal threaded block.

[0010] As a preferred embodiment of this utility model, the quick-release assembly includes a shaped fixing block fixedly installed on the outer surface of the internal thread block, a locking block that fits against the surface of the shaped fixing block, a locking groove formed on the outer surface of the locking block and used in conjunction with the shaped fixing block, a deformable vise movably connected to the outer surface of the locking block, and an installation component disposed on one side of the deformable vise.

[0011] As a preferred embodiment of this utility model, the mounting component includes a piston pin disposed on the outer surface of the positioning block, and a piston pin inner sleeve that fits against the inner surface of the piston pin.

[0012] As a preferred embodiment of this utility model, the surface of the fixing sleeve is provided with a groove, and the groove fits into the surface of the inner sleeve of the piston pin.

[0013] In a preferred embodiment of this utility model, the two driven wheels are rotatably connected to the outer surface of the positioning block, and a bearing sleeve for rotation is installed at the connection point. The surface of the positioning block is provided with a mounting hole for use with the threaded rod.

[0014] In a preferred embodiment of this utility model, the two ends of the positioning pin are fixedly connected to the positioning block and the fixing block respectively, and the outer surface of the positioning pin slides in contact with the inner surface of the internal thread block.

[0015] As a preferred embodiment of this utility model, the quick-release components are arranged in two symmetrical sets, and the two sets of quick-release components are respectively disposed on the outer surfaces of the positioning block and the internal thread block. The outer surface of the irregular fixing block is in contact with the inner surface of the slot, and the deformable vise is in contact with the surface of the piston pin.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by using the reverse-rotating driven wheel and the reverse-threaded rod, the internal thread block moves synchronously, achieving a stable clamping of the piston pin. The deformable vise can automatically adjust its shape according to the piston pin diameter to ensure a tight fit and firm clamping. It can be adapted to various specifications of parts without manual adjustment, ensuring that the piston pin inner sleeve is pressed smoothly and accurately into the piston pin, improving assembly accuracy and efficiency, and reducing operational complexity and damage risk. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the quick-release component of this utility model;

[0022] Figure 5 This is a schematic diagram of the disassembled quick-release component of this utility model;

[0023] Figure 6 This is an exploded view of the quick-release component of this utility model.

[0024] In the diagram: 100, bearing mechanism; 101, operating table; 102, support leg; 103, fixing block; 200, positioning mechanism; 201, fixing plate; 202, cylinder; 203, fixing sleeve; 204, drive assembly; 204a, positioning block; 204b, motor; 204c, drive wheel; 204d, driven wheel; 204e, threaded rod; 204f, internal threaded block; 204g, positioning pin; 205, quick-release assembly; 205a, irregularly shaped fixing block; 205b, locking block; 205c, locking groove; 205d, deformable vise; 205e, mounting part; 205e-1, piston pin; 205e-2, piston pin inner sleeve. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example

[0029] Reference Figures 1-6 This embodiment of the present invention provides a combined piston pin inner fitting extrusion device, comprising,

[0030] The support mechanism 100 includes an operating table 101, a support leg 102 fixedly installed at the bottom of the operating table 101, and a fixing block 103 fixedly installed on the surface of the operating table 101.

[0031] The positioning mechanism 200 includes a fixed plate 201 fixedly installed on the outer surface of the operating table 101, a cylinder 202 adapted to be installed on the outer surface of the fixed plate 201, a fixed sleeve 203 fixedly installed on the output end of the cylinder 202, a drive mechanism 204 disposed below the cylinder 202 for fixing materials, and a quick-release assembly 205 for disassembling clamps of different sizes.

[0032] The drive mechanism 204 includes a positioning block 204a fixedly mounted on the outer surface of the operating table 101, a motor 204b adapted to be mounted on the outer surface of the positioning block 204a, a drive wheel 204c fixedly connected to the output end of the motor 204b via a coupling, two driven wheels 204d meshing with the surface of the drive wheel 204c, a threaded rod 204e fixedly connected to the two driven wheels 204d, an internal threaded block 204f threadedly connected to the thread of the threaded rod 204e, and a positioning pin 204g fixedly mounted on the outer surface of the fixing block 103 for moving in conjunction with the internal threaded block 204f.

[0033] Among them, the two driven wheels 204d that mesh with the surface of the drive wheel 204c are designed to rotate in opposite directions. In order to ensure that the internal thread block 204f can move accurately in the same direction and perform clamping and fixing action on the piston pin 205e-1, the thread direction on the two threaded rods 204e is also designed to be opposite, ensuring that the internal thread block 204f can move accurately along the positioning pin 204g, thereby achieving effective clamping and fixing of the piston pin 205e-1.

[0034] Specifically, the quick-release assembly 205 includes a shaped fixing block 205a fixedly installed on the outer surface of the internal thread block 204f, a locking block 205b that fits against the surface of the shaped fixing block 205a, a locking groove 205c opened on the outer surface of the locking block 205b and used in conjunction with the shaped fixing block 205a, a deformable vise 205d movably connected to the outer surface of the locking block 205b, and a mounting piece 205e provided on one side of the deformable vise 205d.

[0035] Furthermore, the mounting component 205e includes a piston pin 205e-1 disposed on the outer surface of the positioning block 204a, and a piston pin inner sleeve 205e-2 that fits against the inner surface of the piston pin 205e-1.

[0036] Furthermore, the surface of the fixed sleeve 203 is provided with a groove, which fits into the surface of the piston pin inner sleeve 205e-2.

[0037] When the piston pin inner sleeve 205e-2 needs to be pressed into the piston pin 205e-1, the groove on the surface of the fixing sleeve 203 first fits against the piston pin inner sleeve 205e-2, ensuring the accurate positioning of the piston pin inner sleeve 205e-2 during the assembly process. Then, the cylinder 202 is started and a predetermined pressure is applied, pushing the fixing sleeve 203 to move axially, thereby pressing the piston pin inner sleeve 205e-2 smoothly and firmly into the piston pin 205e-1.

[0038] Furthermore, the two driven wheels 204d are rotatably connected to the outer surface of the positioning block 204a, and a bearing sleeve for rotation is installed at the connection. The surface of the positioning block 204a is provided with a mounting hole for use with the threaded rod 204e.

[0039] Preferably, the two ends of the positioning pin 204g are fixedly connected to the positioning block 204a and the fixing block 103 respectively, and the outer surface of the positioning pin 204g slides in contact with the inner surface of the internal thread block 204f.

[0040] It should be noted that there are two sets of quick-release components 205 arranged symmetrically. The two sets of quick-release components 205 are respectively set on the outer surface of the positioning block 204a and the internal thread block 204f. The outer surface of the irregular fixed block 205a is in contact with the inner surface of the slot 205c, and the deformable vise 205d is in contact with the surface of the piston pin 205e-1.

[0041] Among them, the deformable vise 205d can automatically and flexibly deform according to the different pipe diameters of the piston pin 205e-1, adjust its required shape, ensure a tight fit and firmly clamp the piston pin 205e-1, and can be used for various specifications of piston pin 205e-1 without manual adjustment, thus improving the flexibility and efficiency of the assembly process.

[0042] In use, first place the piston pin 205e-1 to be assembled on the operating table 101 and clamp and position it using the drive mechanism 204. Start the motor 204b, which drives the drive wheel 204c to rotate via a coupling. The drive wheel 204c meshes with two driven wheels 204d, which are designed to rotate in opposite directions. This causes the two threaded rods 204e connected to it to rotate synchronously in opposite directions. Since the threads on the two threaded rods 204e are also designed to be in opposite directions—one right-handed and the other left-handed—they are designed to rotate in opposite directions. The piston pin is rotated to the left, so the two internally threaded blocks 204f connected to it can move synchronously in the same direction under the guidance of the positioning pin 204g, thereby achieving the clamping and fixing action of the piston pin 205e-1. Then, the groove opened on the surface of the fixing sleeve 203 fits with the piston pin inner sleeve 205e-2 to ensure its accurate positioning during the assembly process. Subsequently, the cylinder 202 is started and a predetermined pressure is applied to push the fixing sleeve 203 to move axially, so as to smoothly and evenly press the piston pin inner sleeve 205e-2 into the piston pin 205e-1.

[0043] In summary, the reverse-rotating driven wheel 204d and the reverse-threaded rod 204e cause the internal thread block 204f to move synchronously, achieving a stable clamping of the piston pin 205e-1. The deformable vise 205d can automatically adjust its shape according to the piston pin diameter to ensure a tight fit and firm clamping. It can adapt to various specifications of parts without manual adjustment, ensuring that the piston pin inner sleeve 205e-2 is smoothly and accurately pressed into the piston pin 205e-1, improving assembly accuracy and efficiency, and reducing operational complexity and the risk of damage.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A combined piston pin bushing assembly press device characterized by: include, The support mechanism (100) includes an operating table (101), a support leg (102) fixedly installed at the bottom of the operating table (101), and a fixing block (103) fixedly installed on the surface of the operating table (101); The positioning mechanism (200) includes a fixed plate (201) fixedly installed on the outer surface of the operating table (101), a cylinder (202) adapted to be installed on the outer surface of the fixed plate (201), a fixed sleeve (203) fixedly installed on the output end of the cylinder (202), a drive mechanism (204) disposed below the cylinder (202) for fixing materials, and a quick-release assembly (205) for disassembling clamps of different sizes; The drive mechanism (204) includes a positioning block (204a) fixedly mounted on the outer surface of the operating table (101), a motor (204b) adapted to be mounted on the outer surface of the positioning block (204a), a drive wheel (204c) fixedly connected to the output end of the motor (204b) via a coupling, two driven wheels (204d) meshing with the surface of the drive wheel (204c), a threaded rod (204e) fixedly connected to the two driven wheels (204d), an internal threaded block (204f) threadedly connected to the threaded rod (204e), and a positioning pin (204g) fixedly mounted on the outer surface of the fixing block (103) for cooperating with the movement of the internal threaded block (204f).

2. A combined piston pin bushing assembly press device according to claim 1, characterized in that: The quick-release assembly (205) includes a shaped fixing block (205a) fixedly installed on the outer surface of the internal thread block (204f), a locking block (205b) that fits against the surface of the shaped fixing block (205a), a slot (205c) formed on the outer surface of the locking block (205b) and used in conjunction with the shaped fixing block (205a), a deformable vise (205d) movably connected to the outer surface of the locking block (205b), and a mounting piece (205e) disposed on one side of the deformable vise (205d).

3. A combined piston pin bushing assembly press device according to claim 2, characterized in that: The mounting component (205e) includes a piston pin (205e-1) disposed on the outer surface of the positioning block (204a) and a piston pin inner sleeve (205e-2) that fits against the inner surface of the piston pin (205e-1).

4. The combined piston pin inner fitting extrusion device according to claim 3, characterized in that: The surface of the fixing sleeve (203) is provided with a groove, which fits against the surface of the piston pin inner sleeve (205e-2).

5. A combined piston pin inner fitting extrusion device according to claim 4, characterized in that: The two driven wheels (204d) are rotatably connected to the outer surface of the positioning block (204a), and a bearing sleeve for rotation is installed at the connection. The surface of the positioning block (204a) is provided with a mounting hole for use with the threaded rod (204e).

6. A combined piston pin inner fitting extrusion device according to claim 5, characterized in that: The two ends of the positioning pin (204g) are fixedly connected to the positioning block (204a) and the fixing block (103) respectively, and the outer surface of the positioning pin (204g) slides in contact with the inner surface of the internal thread block (204f).

7. A combined piston pin inner fitting extrusion device according to claim 6, characterized in that: Two sets of quick-release components (205) are symmetrically arranged. The two sets of quick-release components (205) are respectively disposed on the outer surfaces of the positioning block (204a) and the internal thread block (204f). The outer surface of the irregular fixing block (205a) is in contact with the inner surface of the slot (205c). The deformable vise (205d) is in contact with the surface of the piston pin (205e-1).

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