Engine piston press-fitting press

Abstract

The utility model is applicable to the technical field of engine assembly, and provides an engine piston press-fitting press which comprises a workbench, a C-shaped mounting arm is mounted at the top end of the workbench, a hydraulic mechanism is mounted at the top end of the mounting arm, and a hydraulic cylinder is mounted at the top end of the hydraulic mechanism. A bearing clamping mechanism is mounted at the bottom of the mounting arm and located under the hydraulic mechanism, and a heating mechanism is mounted at the top end of the workbench and located on one side of the mounting arm; by installing the heating mechanism on the workbench, preheating and surface cleaning can be conducted on a piston and a connecting rod, certain expansion exists in shaft holes of the heated piston and the connecting rod, press fitting can be conveniently conducted on the piston through a hydraulic mechanism, meanwhile, stains on the surfaces of the piston and the connecting rod can be cleaned, and abrasion to a certain degree during machining is prevented; later use is affected, and the assembling effect and efficiency are improved; and the bearing clamping mechanism is arranged, so that the piston press-fitting effect is improved, and the defect rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engine assembly, in particular to an engine piston press. Background Art

[0002] A piston engine, also called a reciprocating engine, is an engine that uses one or more pistons to convert pressure into rotational kinetic energy. A piston engine is a type of heat engine that is powered by fuels such as gasoline and diesel. A piston engine is mainly composed of a cylinder, a piston, a connecting rod, a crankshaft, a valve mechanism, a propeller reducer, a casing, etc. Piston aircraft engines are developed from automobile piston engines. Most of them are four-stroke engines, that is, one cylinder completes a working cycle, and the piston goes through four strokes in the cylinder, which are the intake stroke, compression stroke, expansion stroke, and exhaust stroke. In addition to the main components, the engine must also have a number of auxiliary systems to work with it. In addition to the traditional piston engine, in recent years, people have invented a rotary internal combustion engine, which has different characteristics from the traditional piston engine.

[0003] In the existing engine piston press-fitting process, the piston and the connecting rod are assembled and installed through a connecting shaft. Usually, there are impurities on the surfaces of the piston and the connecting rod, which easily cause a certain degree of wear during the assembly process, resulting in poor assembly effect and low assembly efficiency. Utility Model Content

[0004] The utility model provides an engine piston press, aiming to solve the problems that in the existing engine piston press process, the piston and the connecting rod are assembled and installed through a connecting shaft, impurities are usually present on the surfaces of the piston and the connecting rod, a certain degree of wear is easily caused during the assembly process, the assembly effect is poor, and the assembly efficiency is low.

[0005] The utility model is implemented as follows: an engine piston pressing machine comprises a workbench, a mounting arm is installed at the top of the workbench, the mounting arm is C-shaped, a hydraulic mechanism is installed at the top of the mounting arm, a load-bearing clamping mechanism is installed at the bottom of the mounting arm directly below the hydraulic mechanism, and a heating mechanism is installed at the top of the workbench on one side of the mounting arm.

[0006] Preferably, the hydraulic mechanism includes: a hydraulic cylinder, which is fixedly mounted on the top of the mounting arm, the output end of the hydraulic cylinder passes through the top of the mounting arm and extends to the bottom load-bearing clamping mechanism, the output end of the hydraulic cylinder is fixedly connected to a mounting plate, the mounting plate is located at both ends of the hydraulic cylinder and is fixedly connected to guide columns, the guide columns pass through the top of the hydraulic cylinder and are slidably connected to the hydraulic cylinder, a pressing fixture is installed in the middle position of the bottom of the mounting plate, and a pressing head is installed on the pressing fixture.

[0007] The beneficial effect of adopting the above further solution is that the stability of the installation plate in moving up and down is improved by providing the guide pillars, thereby ensuring the press-fitting effect.

[0008] Preferably, the bearing and clamping mechanism includes: a bearing plate, the bearing plate is fixedly mounted at the bottom of the mounting arm, a base plate is mounted on the top of the bearing plate, a placing table is mounted in the middle of the base plate, a piston clamp is symmetrically mounted at both ends of the placing table, and the bearing plate is mounted on one side of the base plate.

[0009] The beneficial effects of adopting the above further solution are: ensuring that the piston is on the same horizontal plane, improving the piston press-fitting effect, and reducing the defective rate.

[0010] Preferably, the heating mechanism includes: a heating box, the heating box is installed on the top of the workbench, a heating element is installed on the bottom side wall of the heating box, the heating box is provided with a boss above the heating element, a placement plate is provided above the boss, a plurality of mesh holes are opened on the placement plate, and a water outlet plug is provided at the bottom of the heating box.

[0011] The beneficial effect of adopting the above further solution is that stains on the surface of the piston and the connecting rod can be cleaned, thereby preventing a certain degree of wear and tear during processing, which would affect the subsequent use.

[0012] Preferably, the workbench is provided with a protective frame around the outer side of the mounting arm and the heating mechanism.

[0013] The beneficial effect of adopting the above further solution is that it can effectively protect the internal structure.

[0014] Preferably, a PLC controller is installed on the workbench, and the PLC controller is electrically connected to each mechanism and is used to control the normal operation of each mechanism.

[0015] The beneficial effect of adopting the above further solution is: facilitating the control of the normal operation of each mechanism and ensuring the stable operation of the device.

[0016] Preferably, the bottoms of the four legs of the workbench are all provided with pads.

[0017] The beneficial effect of adopting the above further solution is: improving the stability of the bottom support.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: an engine piston pressing press of the utility model can preheat and clean the surface of the piston and the connecting rod by installing a heating mechanism on the workbench. The piston and the connecting rod shaft hole will expand to a certain extent after heating, which is convenient for pressing the piston through the hydraulic mechanism. At the same time, the surface stains of the piston and the connecting rod can be cleaned to prevent a certain degree of wear during processing, which affects the later use, and improves the assembly effect and efficiency; by providing a load-bearing clamping mechanism, the stability of the piston during processing is guaranteed, and the connecting rod is supported to ensure that it is on the same level as the piston, thereby improving the piston pressing effect and reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the front view structure of

[0021] Figure 3 for Figure 1 A side view schematic diagram of the structure;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 5 for Figure 1 The other side view of the structure diagram (without placement board);

[0024] In the figure: 1. workbench; 2. mounting arm; 3. hydraulic mechanism; 31. hydraulic cylinder; 32. mounting plate; 33. guide column; 34. press-fitting fixture; 35. press-fitting head; 4. load-bearing clamping mechanism; 41. load-bearing plate; 42. bottom plate; 43. placement table; 44. piston fixture; 45. load-bearing table; 5. heating mechanism; 51. heating box; 52. heating element; 53. placement plate; 54. water outlet plug; 6. protective frame; 7. PLC controller; 8. foot pad. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] See also Figure 1-5The utility model provides a technical solution of an engine piston press: an engine piston press, comprising a workbench 1, a mounting arm 2 is installed on the top of the workbench 1, the mounting arm 2 is in a C-shape, a hydraulic mechanism 3 is installed on the top of the mounting arm 2, a load-bearing clamping mechanism 4 is installed at the bottom of the mounting arm 2, and a heating mechanism 5 is installed on one side of the mounting arm 2 at the top of the workbench 1.

[0027] In this embodiment, by installing a heating mechanism 5 on the workbench 1, the piston and the connecting rod can be preheated and the surface cleaned, which makes it convenient to press-fit the piston through the hydraulic mechanism 3. At the same time, the stains on the surface of the piston and the connecting rod can be cleaned to prevent a certain degree of wear during processing, which affects the later use, thereby improving the assembly effect and efficiency. By providing a load-bearing and clamping mechanism 4, the stability of the piston during processing is guaranteed, and the connecting rod is supported to ensure that it is on the same horizontal plane as the piston, thereby improving the piston pressing effect and reducing the defective rate.

[0028] Furthermore, the hydraulic mechanism 3 includes: a hydraulic cylinder 31, which is fixedly mounted on the top of the mounting arm 2, and the output end of the hydraulic cylinder 31 passes through the top of the mounting arm 2 and extends to the bottom bearing clamping mechanism 4, and the output end of the hydraulic cylinder 31 is fixedly connected with a mounting plate 32, and the mounting plate 32 is located at both ends of the hydraulic cylinder 31 and is fixedly connected with guide columns 33, and the guide columns 33 pass through the top of the hydraulic cylinder 31 and are slidably connected with the hydraulic cylinder 31, and a pressing fixture 34 is installed in the middle position of the bottom of the mounting plate 32, and a pressing head 35 is installed on the pressing fixture 34.

[0029] In this embodiment, as shown in the attached Figure 2 As shown, the hydraulic mechanism 3 includes a hydraulic cylinder 31. The hydraulic cylinder 31 is installed at the top of the mounting arm 2. The output end of the hydraulic cylinder 31 passes through the top of the mounting arm 2, which is convenient for driving the lower mounting plate 32 to move up and down. A pressing fixture 34 is fixedly installed at the bottom of the mounting plate 32. A pressing head 35 is fixed by clamping the pressing fixture 34. When the hydraulic cylinder 31 is driven to work, the pressing head 35 on the mounting plate 32 is driven to press the piston directly below, and the connecting rod is pressed into the piston through the connecting shaft to complete the pressing of the piston. Guide columns 33 are installed at both ends of the mounting plate 32. When the hydraulic cylinder 31 drives the mounting plate 32 to move up and down, the guide columns 33 on both sides will follow the up and down movement. The provision of the guide columns 33 improves the stability of the up and down movement of the mounting plate 32, thereby ensuring the pressing effect.

[0030] Typically, the bearing and clamping mechanism 4 includes: a bearing plate 41, the bearing plate 41 is fixedly mounted at the bottom of the mounting arm 2, a bottom plate 42 is mounted on the top of the bearing plate 41, a placing table 43 is mounted in the middle of the bottom plate 42, a piston clamp 44 is symmetrically mounted at both ends of the placing table 43, and a bearing table 45 is mounted on one side of the bottom plate 42 of the bearing plate 41.

[0031] In this embodiment, the bearing and clamping mechanism 4 includes a bearing plate 41. By installing the bearing plate 41 at the C-shaped bottom end of the mounting arm 2, the clamping mechanism structure can be conveniently installed on the mounting arm 2 through the bearing plate 41. By installing the bottom plate 42 on the bearing plate 41 and installing a placement table 43 in the middle position of the bottom plate 42, the piston can be conveniently placed on the placement table 43. The piston is clamped by the piston clamps 44 on both sides to ensure the stability of the piston during processing. By providing a bearing table 45, the connecting rod can be supported to ensure that it is on the same horizontal plane as the piston, thereby improving the piston pressing effect and reducing the defective rate.

[0032] Specifically, the heating mechanism 5 includes: a heating box 51, which is installed on the top of the workbench 1, and a heating element 52 is installed on the bottom side wall of the heating box 51. The heating box 51 is provided with a boss above the heating element 52, and a placement plate 53 is provided above the boss. The placement plate 53 is provided with a plurality of mesh holes, and a water outlet plug 54 is provided at the bottom of the heating box 51.

[0033] In this embodiment, the heating mechanism 5 includes a heating box 51. By providing the heating box 51, water can be injected into the heating box 51 during operation. The water can be heated under the drive of the heating element 52. By placing the piston and connecting rod to be processed on the placement plate 53 of the heating box 51, the piston and connecting rod can be preheated and the surface cleaned. After heating, the piston and connecting rod shaft holes will expand to a certain extent, which is convenient for pressing the piston through the hydraulic mechanism 3. At the same time, the stains on the surface of the piston and connecting rod can be cleaned to prevent a certain degree of wear during processing, which affects the later use.

[0034] In addition, a protective frame 6 is provided around the workbench 1 located on the outer side of the mounting arm 2 and the heating mechanism 5 .

[0035] In this embodiment, a protective frame 6 is installed on the top of the workbench 1. When in use, side panels can be installed on the protective frame 6, which can effectively protect the internal structure.

[0036] In addition, a PLC controller 7 is installed on the workbench 1, and the PLC controller 7 is electrically connected to each mechanism for controlling the normal operation of each mechanism.

[0037] In this embodiment, a PLC controller 7 is installed on the workbench 1, and the PLC controller 7 is electrically connected to each structure, so as to facilitate the control of the normal operation of each mechanism and ensure the stable operation of the device.

[0038] It should be noted that the bottoms of the four legs of the workbench 1 are all provided with feet 8 .

[0039] In this embodiment, the four legs of the workbench 1 are provided with feet 8 to improve the stability of the bottom support.

[0040] The working principle and use process of the utility model: After the utility model is installed, the external power supply is connected to power the device to ensure the normal operation of the device. When working, water can be injected into the heating box 51, and the water can be heated under the drive of the heating element 52. By placing the piston and connecting rod to be processed on the placement plate 53 of the heating box 51, the piston and the connecting rod can be preheated and the surface cleaned, and the piston is placed on the placement table 43, and the piston is clamped by the piston clamps 44 on both sides to ensure the stability of the piston during processing, and the hydraulic cylinder 31 is driven to work, driving the pressing head 35 on the mounting plate 32 to press the piston directly below, and the connecting rod is pressed into the piston through the connecting shaft to complete the pressing of the piston, completing the use process of an engine piston pressing press.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine piston press, characterized in that: The invention comprises a workbench (1), wherein a mounting arm (2) is mounted on the top of the workbench (1), wherein the mounting arm (2) is C-shaped, a hydraulic mechanism (3) is mounted on the top of the mounting arm (2), a load-bearing clamping mechanism (4) is mounted on the bottom of the mounting arm (2) directly below the hydraulic mechanism (3), and a heating mechanism (5) is mounted on the top of the workbench (1) and on one side of the mounting arm (2).

2. The engine piston press according to claim 1, characterized in that: The hydraulic mechanism (3) comprises: a hydraulic cylinder (31), the hydraulic cylinder (31) is fixedly mounted on the top of the mounting arm (2), the output end of the hydraulic cylinder (31) passes through the top of the mounting arm (2) and extends to the bottom bearing clamping mechanism (4), the output end of the hydraulic cylinder (31) is fixedly connected to a mounting plate (32), the mounting plate (32) is located at both ends of the hydraulic cylinder (31) and is fixedly connected to guide columns (33), the guide columns (33) pass through the top of the hydraulic cylinder (31) and are slidably connected to the hydraulic cylinder (31), a pressing fixture (34) is installed at the middle position of the bottom of the mounting plate (32), and a pressing head (35) is installed on the pressing fixture (34).

3. The engine piston press according to claim 1, characterized in that: The bearing and clamping mechanism (4) comprises: a bearing plate (41), the bearing plate (41) is fixedly mounted on the bottom of the mounting arm (2), a bottom plate (42) is mounted on the top of the bearing plate (41), a placing platform (43) is mounted in the middle of the bottom plate (42), a piston clamp (44) is symmetrically mounted on both ends of the placing platform (43), and a bearing platform (45) is mounted on one side of the bearing plate (41) located on the bottom plate (42).

4. The engine piston press according to claim 1, characterized in that: The heating mechanism (5) comprises: a heating box (51), the heating box (51) being installed at the top of the workbench (1), a heating element (52) being installed on the bottom side wall of the heating box (51), a boss being arranged above the heating element (52) in the heating box (51), a placement plate (53) being arranged above the boss, a plurality of mesh holes being provided on the placement plate (53), and a water outlet plug (54) being arranged at the bottom of the heating box (51).

5. The engine piston press according to claim 1, characterized in that: The workbench (1) is provided with a protective frame (6) around the outer side of the mounting arm (2) and the heating mechanism (5).

6. The engine piston press according to claim 1, characterized in that: A PLC controller (7) is installed on the workbench (1); the PLC controller (7) is electrically connected to each mechanism and is used to control the normal operation of each mechanism.

7. The engine piston press according to claim 1, characterized in that: The bottoms of the four legs of the workbench (1) are all provided with pads (8).

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