Top feeding press-fitting device for mounting engine box body accessories

Abstract

The utility model relates to the technical field of press-fitting devices, in particular to a top feeding press-fitting device for mounting engine case accessories, which comprises a support, and a feeding device capable of longitudinally reciprocating is arranged at the bottom of the support. A feeding runner used for storing materials is arranged in the center of the feeding device in the direction of the center axis, and an ejector rod capable of ejecting the materials out is arranged in the feeding runner. A feeding pipe for feeding is obliquely arranged on one side of the feeding device; two groups of stop blocks for preventing materials from falling off are hinged to the bottom of the feeding device; the two sides of the bottom of the feeding device are provided with two sets of reset springs used for driving the two sets of stop blocks to be closed or opened. An oil cylinder used for driving the ejector rod to move in a reciprocating mode in the direction of the center axis of the feeding runner is arranged at the top of the support. The bottoms of the two sets of stop blocks are pushed to be closed through the reset spring, materials are prevented from falling off from the interior of the feeding runner, and the problem that the materials are prone to falling off is solved.

Description

Technical Field

[0001] This utility model relates to the field of press-fitting device technology, specifically to a top-feed press-fitting device for installing engine housing parts. Background Technology

[0002] Engine housing component installation is a crucial step in ensuring stable engine operation. This process involves precisely assembling various precision components, such as oil seals, bearings, and gaskets, into the engine housing. Particularly when installing cylindrical components, each component must be assembled individually. Therefore, to improve operational efficiency and enable automated component installation, a specialized press-fitting device is needed to meet production requirements.

[0003] Chinese Patent No. CN220533447U discloses this utility model relating to a pin pressing device, including a press, a pin holder, and a transverse unit. The pin holder has a pin positioning hole at its upper end; the press has a pin positioning cylinder with an opening facing downwards, and a magnet for attracting pins is provided on the pin positioning cylinder; the pin holder is located below the pin positioning cylinder; the transverse unit has a base on its movable end, and a sliding component that longitudinally slides to connect with the pin holder and an elastic reset component that provides elastic reset force to the pin holder are provided on the base. The pin holder receives the fed pins, and then the transverse unit moves the pin holder to below the pin positioning cylinder. The press moves the pin positioning cylinder downwards to receive and magnetically fix the pins on the pin holder. During the attraction process, the elastic force of the elastic reset component prevents hard contact. Then, the press moves the pin positioning cylinder upwards, the transverse unit moves the pin holder to reset, and the press moves the pin positioning cylinder downwards again to press the pins in place. The overall structure is simple and the cost is low.

[0004] The pin pressing device described in the aforementioned patent document places the pins inside the pin positioning barrel during operation. When the press is driven, it is mounted to the equipment via the pins inside the positioning barrel. However, existing pin pressing devices lack a limiting device at the bottom of the pin positioning barrel. This causes the pins inside the positioning barrel to easily fall out, thus affecting the stability of the pressing process. Therefore, a top-feed pressing device for installing engine housing parts is proposed. Utility Model Content

[0005] To address the aforementioned issues, a top-feed pressing device for installing engine housing components is provided. By using a return spring to push the bottom of two sets of stop blocks to close, material is prevented from falling out of the feeding channel, thus solving the problem of material easily falling off.

[0006] To address the problems of existing technologies, this application provides a top-feeding pressing device for installing engine housing accessories, comprising a bracket, a feeding device capable of longitudinal reciprocating movement at the bottom of the bracket; a feeding channel for storing materials is provided along the center of the feeding device, and a push rod capable of ejecting materials is provided inside the feeding channel; a feeding pipe for feeding materials is inclinedly provided on one side of the feeding device; two sets of stop blocks to prevent materials from falling are hinged to the bottom of the feeding device; return springs are provided on both sides of the bottom of the feeding device; and a hydraulic cylinder for driving the push rod to reciprocate along the central axis of the feeding channel is provided at the top of the bracket.

[0007] As one technical solution of this application, a feeding channel is provided at the center of the feeding pipe along the central axis direction for communicating with the feeding channel, and the feeding channel is connected to an external material conveying pipe away from the feeding device.

[0008] As one technical solution of this application, the bottom of the feeding device is provided with a mounting groove for installing a stop block, and two sets of pins that can be hinged to the stop block are horizontally arranged inside the mounting groove.

[0009] As a technical solution of this application, both sets of stop blocks are provided with mounting holes that correspond to and are adapted to the position of the pins.

[0010] As one technical solution of this application, the output end of the hydraulic cylinder is provided with a pressure sensor for the reaction force when the material comes into contact with the engine box during the material ejection process of the ejector rod, and the ejector rod is fixed inside the pressure sensor.

[0011] As one technical solution of this application, a movable plate capable of longitudinal movement is horizontally mounted on the outside of the pressure sensor, and second sliding sleeves are symmetrically arranged on both sides of the movable plate near the pressure sensor. A floating frame for mounting a feeding device is horizontally arranged at the bottom of the movable plate.

[0012] Both ends of the floating frame are vertically equipped with sliding rods that can slide along the inside of the second sliding sleeve;

[0013] The slide bar is equipped with a spring for driving the floating frame to move synchronously with the moving plate;

[0014] The slide bar is also equipped with a limiting block to prevent it from falling out of the second slide sleeve;

[0015] The top of the bracket is symmetrically provided with two first sliding sleeves on both sides near the oil cylinder, which can slide and engage with the slide rod.

[0016] The advantages of this utility model compared to the prior art are:

[0017] This application delivers material into the feeding channel via a feed pipe. Then, a pressure sensor drives a top rod to move longitudinally, causing the top rod to push the material downwards within the feeding channel. During this process, the material passes between two sets of stop blocks. Under the pressure of the material, the bottom of the stop blocks expands to both sides, compressing the return spring. The top rod continues to push the material until it is fully mounted on the engine block. Then, the pressure sensor drives the top rod upwards. When the top rod moves out from between the two sets of stop blocks, the stop blocks close again under the counterforce of the return spring. This prevents material from falling out of the feeding channel, solving the problem of material easily falling out. Attached Figure Description

[0018] Figure 1 This is a perspective view of a top-feed press-fit device for installing engine housing components.

[0019] Figure 2 This is a cross-sectional view of a top-feed press-fit device for installing engine housing components.

[0020] Figure 3 This is a perspective view of a moving plate in a top-feed press-fitting device used for installing engine housing parts.

[0021] Figure 4 This is a perspective view of the feeding device in a top-feed press-fitting device for installing engine housing parts.

[0022] Figure 5 This is a perspective view of a stop block in a top-feed press-fitting device used for installing engine housing accessories.

[0023] Figure 6 yes Figure 2 Enlarged view of point A in the image.

[0024] The following are the labels in the diagram: 1. Bracket; 11. First sliding sleeve; 2. Moving plate; 21. Second sliding sleeve; 31. Floating frame; 32. Sliding rod; 33. Limiting block; 4. Spring; 5. Hydraulic cylinder; 51. Pressure sensor; 52. Top material rod; 6. Feeding device; 61. Feeding channel; 62. Feeding pipe; 621. Feeding channel; 63. Mounting groove; 64. Pin; 7. Return spring; 81. Stop block; 83. Assembly hole. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] See Figures 1-6As shown, a top-feed pressing device for installing engine housing parts includes a bracket 1. The bottom of the bracket 1 is provided with a feeding device 6 capable of longitudinal reciprocating movement. A feeding channel 61 for storing materials is provided along the center of the feeding device 6. A push rod 52 capable of pushing out materials is provided inside the feeding channel 61. A feeding pipe 62 for feeding materials is inclined on one side of the feeding device 6. Two sets of stop blocks 81 for preventing materials from falling are hinged to the bottom of the feeding device 6. Return springs 7 are provided on both sides of the bottom of the feeding device 6. A hydraulic cylinder 5 is provided on the top of the bracket 1 for driving the push rod 52 to reciprocate along the central axis of the feeding channel 61.

[0027] The material is first conveyed into the feeding channel 61 through the feed pipe 62. Then, the hydraulic cylinder 5 drives the pressure sensor 51, which in turn moves the bottom push rod 52 longitudinally, causing it to push the material downwards inside the feeding channel 61. During this process, the material passes between two sets of stop blocks 81. Driven by the material, the bottoms of the stop blocks 81 expand to the sides, compressing the return spring 7. The push rod 52 continues to push the material until it is completely installed on the engine block. After installation, the hydraulic cylinder 5 restarts and moves the push rod 52 upwards. When the push rod 52 moves out from between the two sets of stop blocks 81, the reaction force of the return spring 7 pushes the two sets of stop blocks 81 back to close. This effectively prevents the material from falling out of the feeding channel 61, thus solving the problem of material easily falling out.

[0028] See Figure 6 As shown, a feeding channel 621 is provided at the center of the feeding pipe 62 along the central axis direction, which can communicate with the feeding channel 61. The feeding channel 61 is far away from the feeding device 6 and connected to the external material conveying pipe.

[0029] To achieve stable material conveying, an external conveying pipe is fixedly connected to the feeding pipe 62. This allows the material to be conveyed through the feeding channel 621 inside the feeding pipe 62 into the feed channel 61. Specifically, when the material enters the feeding channel 621, it is in an inclined state within the channel. Simultaneously, the material can slide naturally along the inclined surface inside the feeding channel 621 and gradually move to the inlet of the feed channel 61. After entering the feed channel 61, the material is guided by the inner wall of the channel, and its orientation automatically adjusts to a vertical state. This ensures that the material maintains a stable posture inside the feed channel 61, facilitating subsequent feeding operations.

[0030] See Figure 3 and Figure 4 As shown, the bottom of the feeding device 6 is provided with a mounting groove 63 for mounting the stop block 81, and two sets of pins 64 that can be hinged to the stop block 81 are horizontally arranged inside the mounting groove 63.

[0031] The pin 64 is horizontally mounted inside the mounting groove 63, allowing the stop block 81 to be hinged to the pin 64. This allows the two sets of stop blocks 81 to rotate around the pin 64, thereby enabling the stop blocks 81 to open or close.

[0032] See Figure 3 and Figure 4 As shown, both sets of stop blocks 81 are provided with mounting holes 83 that correspond to and fit the position of the pin 64.

[0033] Mounting holes 83 are provided on two sets of stop blocks 81. The stop blocks 81 are mounted on the pins 64 through the mounting holes 83. The stop blocks 81 are allowed to rotate along the axial direction of the pins 64 through the mounting holes 83, thereby realizing the opening and closing function of the stop blocks 81.

[0034] See Figure 3 and Figure 6 As shown, the output end of the hydraulic cylinder 5 is equipped with a pressure sensor 51 for measuring the reaction force of the material when it comes into contact with the engine housing during the material ejection process of the ejector rod 52. The ejector rod 52 is fixed inside the pressure sensor 51.

[0035] During the process of the hydraulic cylinder 5 driving the ejector rod 52 to push the material out of the feed channel 61, the ejector rod 52 continuously pushes the material closer to the engine housing. When the material contacts the engine housing and is obstructed, a reaction force is generated. At this time, the ejector rod 52 feeds back the reaction force to the pressure sensor 51 connected to it. After receiving the pressure signal, the pressure sensor 51 converts the reaction force into an electrical signal and transmits it to the controller. Based on the received signal, the controller promptly controls the hydraulic cylinder 5 to stop, thereby ensuring the accuracy and safety of the ejection operation.

[0036] See Figure 3 As shown, a movable plate 2 capable of longitudinal movement is horizontally mounted on the outside of the pressure sensor 51. Second sliding sleeves 21 are symmetrically arranged on both sides of the movable plate 2 near the pressure sensor 51. A floating frame 31 for mounting the feeding device 6 is horizontally arranged at the bottom of the movable plate 2.

[0037] The floating frame 31 has vertically arranged sliding rods 32 at both ends, which can slide along the inside of the second sliding sleeve 21;

[0038] A spring 4 is provided on the slide bar 32 to drive the floating frame 31 to move synchronously with the moving plate 2;

[0039] The slide bar 32 is also provided with a limiting block 33 to prevent the slide bar 32 from falling out of the second slide sleeve 21;

[0040] Two first sliding sleeves 11 are symmetrically arranged on both sides of the top of the bracket 1 near the oil cylinder 5, which can slide and engage with the slide rod 32.

[0041] When the hydraulic cylinder 5 drives the moving plate 2 downward via the pressure sensor 51, the moving plate 2 applies pressure to the spring 4 using the second sliding sleeve 21. Under pressure, the spring 4 drives the floating frame 31 to move downward along the axis of the sliding rod 32. This causes the feeding device 6 mounted on the floating frame 31 to press the stop block 81 tightly against the engine housing, effectively securing the engine housing. Simultaneously, the moving plate 2 moves stably along the axis of the sliding rod 32 via the second sliding sleeve 21, ensuring that the floating frame 31 does not shift during operation. A limiting block 33 is provided on the sliding rod 32, located at the top of the moving plate 2. When the hydraulic cylinder 5 drives the moving plate 2 upward via the pressure sensor 51, the limiting block 33 causes the sliding rod 32 to slide smoothly inside the first sliding sleeve 11. This effectively prevents displacement of the moving plate 2 and improves the load-bearing capacity of the hydraulic cylinder 5's output end.

[0042] In operation, the material is first stably conveyed into the feed pipe 62 through the external conveying pipe, and then naturally slides along the inclined surface of the feed channel 621 to the inlet of the feed channel 61. After entering the feed channel 61, the material is automatically adjusted to a vertical position by the inner wall, providing a stable posture for subsequent feeding operations. The hydraulic cylinder 5 precisely controls the longitudinal movement of the push rod 52 through the pressure sensor 51, pushing the material in the feed channel 61 downward. When the material passes between the two sets of stop blocks 81, the stop blocks 81 are pushed to both sides by the material and squeeze the return spring 7. The push rod 52 continues to push the material until the material is completely installed on the engine box. After installation, the hydraulic cylinder 5 starts again, driving the push rod 52 upward. When the push rod 52 moves out from between the two sets of stop blocks 81, the reaction force of the return spring 7 pushes the stop blocks 81 to close again, effectively preventing the material from falling. During the material ejection process, the ejector rod 52 feeds back the reaction force generated by the material contacting the engine housing to the pressure sensor 51, which then converts the reaction force into an electrical signal and transmits it to the controller. The controller promptly stops the hydraulic cylinder 5 based on the signal, ensuring the accuracy and safety of the ejection operation. The hydraulic cylinder 5 also drives the moving plate 2 downwards via the pressure sensor 51, using the second sliding sleeve 21 to pressurize the spring 4, driving the floating frame 31 to move axially along the sliding rod 32, thus fixing the engine housing. The limit block 33 effectively prevents displacement of the moving plate 2 and improves the load-bearing capacity of the hydraulic cylinder 5's output end.

[0043] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A top-feed pressing device for installing engine housing components, comprising a bracket (1), characterized in that, The bottom of the support (1) is provided with a feeding device (6) capable of longitudinal reciprocating movement; a feeding channel (61) for storing materials is provided at the center of the feeding device (6), and a push rod (52) capable of pushing out materials is provided inside the feeding channel (61); a feeding pipe (62) for feeding materials is provided at an incline on one side of the feeding device (6); two sets of stop blocks (81) to prevent materials from falling are hinged to the bottom of the feeding device (6); return springs (7) are provided on both sides of the bottom of the feeding device (6); and a hydraulic cylinder (5) for driving the push rod (52) to reciprocate along the central axis of the feeding channel (61) is provided at the top of the support (1).

2. The top-feed pressing device for installing engine housing components according to claim 1, characterized in that, The feed pipe (62) has a feed channel (621) at its center along the central axis, which is connected to the feed channel (61). The feed channel (61) is far from the feed device (6) and connected to the external material conveying pipe.

3. The top-feed pressing device for installing engine housing components according to claim 1, characterized in that, The bottom of the feeding device (6) is provided with a mounting groove (63) for mounting the stop block (81), and two sets of pins (64) that can be hinged to the stop block (81) are horizontally arranged inside the mounting groove (63).

4. A top-feed pressing device for installing engine housing components according to claim 3, characterized in that, Both sets of stop blocks (81) are provided with mounting holes (83) that correspond to and fit the position of the pin (64).

5. A top-feed pressing device for installing engine housing components according to claim 1, characterized in that, The output end of the cylinder (5) is equipped with a pressure sensor (51) for the reaction force when the material comes into contact with the engine box during the material ejection process of the ejector rod (52). The ejector rod (52) is fixed inside the pressure sensor (51).

6. A top-feed pressing device for installing engine housing components according to claim 5, characterized in that, The pressure sensor (51) is horizontally mounted with a movable plate (2) that can move longitudinally. The movable plate (2) is symmetrically provided with second sliding sleeves (21) on both sides near the pressure sensor (51). The bottom of the movable plate (2) is horizontally provided with a floating frame (31) for installing the feeding device (6). The two ends of the floating frame (31) are vertically provided with slide rods (32) that can slide along the inside of the second sliding sleeve (21); A spring (4) is provided on the slide bar (32) to drive the floating frame (31) to move synchronously with the moving plate (2); The slide bar (32) is also provided with a limiting block (33) to prevent the slide bar (32) from falling out of the second slide sleeve (21); The top of the bracket (1) is symmetrically provided with two first sliding sleeves (11) on both sides near the oil cylinder (5) that can slide with the slide rod (32).

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