Spring pin press for compressor assembly line

Abstract

This utility model discloses a spring pin pressing machine for a compressor assembly line, belonging to the technical field of spring pin pressing machines. It includes a profile frame, a profile cover, a pressing mechanism, a lifting assembly, a tooling plate assembly, and a line frame. The profile frame has a large base plate and a mating frame. The pressing mechanism is installed on the mating frame, and the lifting assembly is installed on the large base plate. The line frame passes through the profile frame and is installed above the lifting assembly. In this spring pin pressing machine for a compressor assembly line, the pump body is installed on the changing frame of the tooling plate assembly. Then, the entire tooling plate assembly is placed on a double-speed chain. The plastic conveyor transports the tooling plate assembly to the top of the lifting assembly. The lifting cylinder of the lifting assembly then lifts the entire tooling plate assembly through the lifting plate. Afterward, the pressing cylinder operates, pressing in the spring pin pre-installed on the pump body through a push rod.

Description

Technical Field

[0001] This utility model belongs to the technical field of spring pin press-in machines, specifically a spring pin press-in machine for compressor assembly lines. Background Technology

[0002] In the compressor manufacturing industry, spring pins are core components connecting critical compressor parts (such as pistons, connecting rods, and cylinders), and the quality of their pressing directly affects the compressor's sealing performance, stability, and service life. Currently, the spring pin pressing process mostly uses traditional pressing machines; however, such equipment has significant shortcomings in actual production and cannot meet the demands of modern, high-precision assembly.

[0003] Existing spring pin press-in machines generally rely on mechanical transmission or simple pneumatic structures, lacking precise pressure control and feedback mechanisms. During the press-in process, due to differences in spring pin material, dimensional tolerances (such as diameter deviation ±0.02mm), and the accuracy of the holes in the assembled parts, the press-in resistance fluctuates significantly. However, traditional press-in machines cannot adjust the press-in parameters according to real-time pressure changes, leading to unstable press-in. For example, when there is a slight deviation between the spring pin and the assembly hole, sudden changes in press-in force can easily cause the spring pin to bend, deform, or break, with a measured failure rate as high as 12%-15%. Conversely, insufficient pressure can cause the spring pin to not be fully seated, resulting in loose assembly, abnormal noise during compressor operation, or even component detachment.

[0004] Furthermore, existing press-in machines lack real-time pressure monitoring capabilities, making it impossible to compare pressure data during the press-in process with preset standards, thus hindering the assessment of the spring pin's press-in depth and assembly effectiveness. Production relies solely on manual sampling, which is not only inefficient but also results in a high rate of missed inspections, failing to meet the demands of high-volume, high-precision production. Statistics show that rework costs due to press-in quality issues account for over 18% of total compressor manufacturing costs. Therefore, developing a spring pin press-in device with real-time pressure monitoring and automatic feedback adjustment functions has become an urgent need to improve compressor assembly quality and production efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a spring pin pressing machine for a compressor assembly line, comprising a profile frame, a profile cover, a pressing mechanism, a lifting assembly, a tooling plate assembly, and a line frame. The profile frame is provided with a large base plate and a mating frame. The pressing mechanism is installed on the mating frame, and the lifting assembly is installed on the large base plate. The line frame passes through the profile frame and is installed above the lifting assembly. The pressing mechanism is installed on the large base plate through the mating frame. The line frame is provided with a double-speed chain, which conveys multiple tooling plate assemblies. A pump body is installed on the tooling plate assembly.

[0008] Preferably, the pressing mechanism includes a guide rail mounting plate, a linear guide rail, a pressing cylinder, a cylinder mounting plate, a sensor mounting plate, a pressure sensor, a groove mounting plate, a groove pin, and a push rod. The linear guide rail is mounted on the guide rail mounting plate, and a slider mounting plate is provided on the slider of the linear guide rail. The pressing cylinder is mounted on the slider mounting plate, and the cylinder mounting plate is mounted at the front end of the slider mounting plate. The sensor mounting plate is mounted at the rear end of the pressing cylinder, and the pressure sensor is mounted on the sensor mounting plate. A groove mounting plate is provided at the upper end of the cylinder mounting plate, and a groove pin is provided at the front end of the groove mounting plate. The push rod is mounted on the output shaft of the pressing cylinder.

[0009] Preferably, the lifting assembly includes a lifting frame, a lifting cylinder, and a lifting plate. The lifting frame is mounted on a large base plate, the lifting cylinder is mounted on the lifting frame, and the lifting plate is provided on the output shaft of the lifting cylinder.

[0010] Preferably, the tooling plate assembly includes a tooling plate base plate and a changing frame, with the changing frame mounted on the tooling plate base plate and the pump body mounted on the changing frame.

[0011] Preferably, the pressure sensor is an elastic sensor, the groove mounting plate is provided with an upper mounting plate, the upper end of the pressure sensor is connected to the upper mounting plate, the groove mounting plate is provided with a sliding groove, and the cylinder mounting plate is provided with a groove pressing block, which is stuck in the sliding groove.

[0012] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0013] This utility model discloses a spring pin pressing machine for a compressor assembly line. The pump body is mounted on a changing frame of a tooling plate assembly. The entire tooling plate assembly is then placed on a double-speed chain conveyor. The tooling plate assembly is transported to above a lifting assembly by a plastic conveyor. The lifting cylinder of the lifting assembly then lifts the entire tooling plate assembly via a lifting plate. The pressing cylinder then operates, pressing a spring pin pre-installed on the pump body into the designated position via a push rod. After the tooling plate assembly is lifted, the grooved pin engages the pump body. As the pressing cylinder performs the pressing operation, the grooved mounting plate slides in the opposite direction, causing a deformation of the pressure sensor, allowing for real-time detection of the pressing pressure. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of a spring pin press-in machine for a compressor assembly line according to the present invention;

[0015] Figure 2 This is a schematic diagram of the tooling plate assembly of a spring pin press-in machine for a compressor assembly line according to the present invention;

[0016] Figure 3 This is a schematic diagram of the pressing mechanism of a spring pin pressing machine for a compressor assembly line according to the present invention.

[0017] Explanation of the labels in the diagram:

[0018] 100. Profile rack; 110. Base plate; 120. Assembly rack;

[0019] 200. Profile protective cover;

[0020] 300. Pressing mechanism; 310. Guide rail mounting plate; 320. Linear guide rail; 330. Pressing cylinder; 340. Cylinder mounting plate; 350. Sensor mounting plate; 360. Pressure sensor; 370. Groove mounting plate; 371. Upper mounting plate; 372. Groove pressing block; 380. Groove pin; 390. Push rod;

[0021] 400. Lifting assembly; 410. Lifting frame; 420. Lifting cylinder; 430. Lifting plate;

[0022] 500. Tooling plate assembly; 510. Tooling plate base plate; 520. Changeover frame;

[0023] 600. Line frame;

[0024] 700. Pump body. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0031] See attached document Figure 1-3This embodiment of a spring pin press-in machine for a compressor assembly line includes a profile frame 100, a profile cover 200, a press-in mechanism 300, a lifting assembly 400, a tooling plate assembly 500, and a line frame. The profile frame 100 is provided with a large base plate 110 and a mating frame 120. The press-in mechanism 300 is installed on the mating frame 120, and the lifting assembly 400 is installed on the large base plate 110. The line frame passes through the profile frame 100 and is installed above the lifting assembly 400. The press-in mechanism 300 is installed on the large base plate 110 through the mating frame 120. The line frame is provided with a double-speed chain, which conveys multiple tooling plate assemblies 500. A pump body 700 is installed on the tooling plate assembly 500.

[0032] The pressing mechanism 300 of this embodiment includes a guide rail mounting plate 310, a linear guide rail 320, a pressing cylinder 330, a cylinder mounting plate 340, a sensor mounting plate 350, a pressure sensor 360, a groove mounting plate 370, a groove pin 380, and a push rod 390. The linear guide rail 320 is mounted on the guide rail mounting plate 310. A slider mounting plate is provided on the slider of the linear guide rail 320. The pressing cylinder 330 is mounted on the slider mounting plate. The cylinder mounting plate 340 is mounted at the front end of the slider mounting plate. The sensor mounting plate 350 is mounted at the rear end of the pressing cylinder 330. The pressure sensor 360 is mounted on the sensor mounting plate 350. The groove mounting plate 370 is provided at the upper end of the cylinder mounting plate 340. The groove pin 380 is provided at the front end of the groove mounting plate 370. The push rod 390 is mounted on the output shaft of the pressing cylinder 330.

[0033] The lifting assembly 400 in this embodiment includes a lifting frame 410, a lifting cylinder 420, and a lifting plate 430. The lifting frame 410 is mounted on the base plate 110, the lifting cylinder 420 is mounted on the lifting frame 410, and the lifting plate 430 is provided on the output shaft of the lifting cylinder 420.

[0034] The tooling plate assembly 500 in this embodiment includes a tooling plate base plate 510 and a changing frame 520. The changing frame 520 is mounted on the tooling plate base plate 510, and the pump body 700 is mounted on the changing frame 520.

[0035] In this embodiment, the pressure sensor 360 is an elastic sensor. The groove mounting plate 370 is provided with an upper mounting plate 371. The upper end of the pressure sensor 360 is connected to the upper mounting plate 371. The groove mounting plate 370 is provided with a sliding groove. The cylinder mounting plate 340 is provided with a groove pressing block 372. The groove pressing block 372 is stuck in the sliding groove.

[0036] The working principle is as follows: the pump body 700 is installed on the changing frame 520 of the tooling plate assembly 500, and then the entire tooling plate assembly 500 is placed on the double-speed chain. The plastic conveyor transports the tooling plate assembly 500 to above the lifting assembly 400. Then, the lifting cylinder 420 of the lifting assembly 400 lifts the entire tooling plate assembly 500 through the lifting plate 430. After that, the pressing cylinder 330 operates, pressing the spring pin pre-installed on the pump body 700 through the push rod 390, pressing it into the designated position. After the tooling plate assembly 500 is lifted, the groove pin 380 locks the pump body 700. As the pressing cylinder 330 presses in, the groove mounting plate 370 slides in the opposite direction, causing the pressure sensor 360 to deform, which can detect the pressing pressure in real time and set the pressure threshold. When the pressure reaches the threshold, the cylinder stops pressing.

[0037] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. 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 modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A spring pin press-in machine for a compressor assembly line, characterized in that: The assembly includes a profile frame (100), a profile cover (200), a pressing mechanism (300), a lifting assembly (400), a tooling plate assembly (500), and a production line frame. The profile frame (100) is provided with a large base plate (110) and a mating frame (120). The pressing mechanism (300) is installed on the mating frame (120), and the lifting assembly (400) is installed on the large base plate (110). The production line frame is installed through the profile frame (100) and is located above the lifting assembly (400). The pressing mechanism (300) is installed on the large base plate (110) through the mating frame (120). The production line frame is provided with a double-speed chain, which conveys multiple tooling plate assemblies (500). A pump body (700) is installed on the tooling plate assembly (500).

2. A spring pin press-in machine for a compressor assembly line according to claim 1, characterized in that: The pressing mechanism (300) includes a guide rail mounting plate (310), a linear guide rail (320), a pressing cylinder (330), a cylinder mounting plate (340), a sensor mounting plate (350), a pressure sensor (360), a groove mounting plate (370), a groove pin (380), and a push rod (390). The linear guide rail (320) is mounted on the guide rail mounting plate (310), and a slider mounting plate is provided on the slider of the linear guide rail (320). The pressing cylinder (330) is mounted on... On the slider mounting plate, a cylinder mounting plate (340) is mounted at the front end of the slider mounting plate, a sensor mounting plate (350) is mounted at the rear end of the pressing cylinder (330), a pressure sensor (360) is mounted on the sensor mounting plate (350), a groove mounting plate (370) is provided at the upper end of the cylinder mounting plate (340), a groove pin (380) is provided at the front end of the groove mounting plate (370), and a push rod (390) is mounted on the output shaft of the pressing cylinder (330).

3. A spring pin press-in machine for a compressor assembly line according to claim 1, characterized in that: The lifting assembly (400) includes a lifting frame (410), a lifting cylinder (420), and a lifting plate (430). The lifting frame (410) is mounted on a large base plate (110), the lifting cylinder (420) is mounted on the lifting frame (410), and the lifting plate (430) is provided on the output shaft of the lifting cylinder (420).

4. A spring pin press-in machine for a compressor assembly line according to claim 1, characterized in that: The tooling plate assembly (500) includes a tooling plate base plate (510) and a changing frame (520), the changing frame (520) being mounted on the tooling plate base plate (510), and the pump body (700) being mounted on the changing frame (520).

5. A spring pin press-in machine for a compressor assembly line according to claim 2, characterized in that: The pressure sensor (360) is an elastic sensor. The groove mounting plate (370) is provided with an upper mounting plate (371). The upper end of the pressure sensor (360) is connected to the upper mounting plate (371). The groove mounting plate (370) is provided with a sliding groove. The cylinder mounting plate (340) is provided with a groove pressing block (372). The groove pressing block (372) is stuck in the sliding groove.

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