Integrated equipment for automatic press-fitting and pressure relief of solenoid valve steel ball

Abstract

The utility model discloses electromagnetic valve steel ball automatic press -mounting and pressure -releasing integrated equipment, including base, four guide posts, top plate, hydraulic cylinder, boss, internal pressure subassembly, outer sleeve and valve body, four guide posts are fixed respectively and installed to the four corners of base top, and the top of guide post is fixedly connected with top plate, hydraulic cylinder fixed mounting is to top plate. The utility model discloses through the center sliding block cooperation bottom's inner slide sleeve realizes the guidance of steel ball and feeds, and utilizes hydraulic cylinder vertical pressure, and the valve body of stable positioning of placing groove and outer sleeve is carried out automatic steel ball press -mounting, improves installation accuracy and reduces damage, improves sealing life, and realizes the press -mounting and pressure -releasing integrated operation of electromagnetic valve steel ball with cooperation pressure -releasing subassembly, thereby realizes the device and possesses realizes the automatic press -mounting of electromagnetic valve's steel ball, and the operation efficiency is higher, and is more accurate, and realizes the press -mounting pressure -releasing integrated operation simultaneously, and is completed once, and the advantage of improving operation efficiency is realized.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve steel ball pressing equipment, and more specifically, to an integrated automatic pressing and depressurization equipment for electromagnetic valve steel balls. Background Technology

[0002] The valve core of a solenoid valve is one of the key components for opening and closing the solenoid valve. To ensure the valve core's durability and reliability, a steel ball is usually embedded in its front end. The solenoid valve is opened or closed by the cooperation between the steel ball and the valve seat. Nowadays, one-piece valve cores are made by directly machining the front end of the valve core into a spherical shape. Although this simplifies the assembly process of the solenoid valve, in practice, there are problems such as the difficulty in machining one-piece valve cores and the high material cost. Therefore, the combination of valve core and steel ball is still widely used in the manufacture of solenoid valves.

[0003] Currently, the steel ball pressing of solenoid valves is generally done manually. Traditional manual pressing is not precise in terms of the control of the pressing force, and it is easy to scratch the surface of the steel ball, which reduces the airtightness and life of the solenoid valve, or even directly damages it. The defect rate is high. In addition, after pressing the steel ball, the solenoid valve needs to be depressurized, which requires a step-by-step operation and is inefficient. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an integrated automatic pressing and unpressurization device for solenoid valve steel balls, which solves the problems of traditional manual pressing control being difficult to control, easily causing scratches on the surface of the steel balls, which in turn leads to a shortened airtight life of the solenoid valve or even direct damage, resulting in a low product qualification rate.

[0005] To solve the above problems, the present invention adopts the following technical solution;

[0006] An integrated automatic pressing and depressurization device for solenoid valve steel balls includes a base, four guide pillars, a top plate, a hydraulic cylinder, a boss, an internal pressure assembly, an outer clamping sleeve, and a valve body. The four guide pillars are fixedly installed at the four corners of the top of the base, and the top of the guide pillars is fixedly connected to the top plate. The hydraulic cylinder is fixedly installed on the top plate. The internal pressure assembly is installed on the movable end of the hydraulic cylinder. The outer clamping sleeve is connected and cooperates with the internal pressure assembly. A placement groove for placing the valve body is opened on the boss. A depressurization assembly is provided inside the base. The top of the depressurization assembly extends into the interior of the placement groove and aligns with the depressurization hole at the bottom of the valve body. A controller for coordinating and controlling the depressurization assembly and the precise operation of the hydraulic cylinder is installed on the base.

[0007] The internal pressure assembly includes a limiting ring, a first spring, a central slider, an inner sliding sleeve, an inner conical groove, a drop hole, and two second springs. The limiting ring is sleeved and fixed to the outside of the hydraulic cylinder. The bottom of the limiting ring is fixedly connected to the first spring. The first spring is sleeved on the outside of the movable end of the hydraulic cylinder. The bottom end of the first spring is fixedly connected to the central slider. The inner side of the central slider is slidably connected to the outside of the movable end of the hydraulic cylinder. The outer side of the central slider is slidably connected to the inner side of the outer sleeve. The central slider is vertically and elastically connected to the inner side of the outer sleeve through the two second springs. The top of the inner sliding sleeve is fixedly connected to the central slider. The inner conical groove and the drop hole are located inside the inner sliding sleeve. The tops of the inner conical groove and the drop hole are connected and fitted. The bottom end of the hydraulic cylinder extends into the inner conical groove to push the incoming steel ball through the drop hole and press it against the mounting hole at the top of the valve body at the bottom. The central slider has a feed hole for inserting the steel ball and connects the feed hole to an external automatic feeding device.

[0008] As a further description of the above technical solution: a buffer pad is fixedly connected to the bottom end of the hydraulic cylinder, and the bottom of the buffer pad is provided with an arc-shaped surface that fits the outer curved surface of the steel ball.

[0009] As a further description of the above technical solution: the inner wall of the inner conical groove is provided with an anti-collision liner, which is a rubber liner.

[0010] As a further description of the above technical solution: a rubber retaining ring is provided on the inner side of the connection between the drop hole and the inner conical groove, and the inner diameter of the rubber retaining ring is smaller than the diameter of the steel ball.

[0011] As a further description of the above technical solution: the downward-extending portion of the falling hole is funnel-shaped, and a blocking ring is fixedly connected to the inner side of the outer sleeve to limit the downward sliding distance of the inner sleeve.

[0012] As a further description of the above technical solution: the pressure relief assembly includes a vertical cylinder and a push block. The vertical cylinder is vertically fixedly installed inside the base. The movable end of the vertical cylinder passes through and slides into the placement groove and is fixedly connected to the push block. The push block extends into the pressure relief hole at the bottom of the valve body.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution uses a central slider in conjunction with an inner sliding sleeve at the bottom to guide and feed steel balls. It also utilizes the vertical pressure of a hydraulic cylinder to automatically press-fit the steel balls into the valve body, which is positioned and stabilized by the placement slot and outer sleeve. This improves installation accuracy, reduces damage, and extends seal life. Simultaneously, it integrates the pressing and depressurization of the steel balls in the solenoid valve into a single operation. Therefore, the device achieves automatic pressing-fitting of steel balls into the solenoid valve, resulting in higher efficiency and greater precision. Furthermore, it integrates pressing and depressurization into a single operation, significantly improving overall work efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of section A in the middle;

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of section B in the middle.

[0019] Explanation of the labels in the diagram:

[0020] 1. Base; 2. Guide post; 3. Top plate; 4. Hydraulic cylinder; 41. Buffer pad; 42. Arc-shaped surface; 5. Boss; 6. Internal pressure assembly; 61. Limiting ring; 62. First spring; 63. Central slider; 64. Inner sliding sleeve; 65. Inner conical groove; 651. Anti-collision liner; 66. Drop hole; 67. Second spring; 68. Rubber retaining ring; 69. Feed hole; 7. Outer retaining sleeve; 71. Blocking ring; 8. Placement groove; 9. Pressure relief assembly; 91. Vertical cylinder; 92. Push block; 10. Valve body; 11. Controller. Detailed Implementation

[0021] 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;

[0022] Please see Figures 1-4In this utility model, the automatic pressing and unpressurizing integrated equipment for electromagnetic valve steel balls includes a base 1, four guide pillars 2, a top plate 3, a hydraulic cylinder 4, a boss 5, an internal pressure component 6, an outer sleeve 7, and a valve body 10. The four guide pillars 2 are respectively fixedly installed at the four corners of the top of the base 1, and the top of the guide pillars 2 is fixedly connected to the top plate 3. The hydraulic cylinder 4 is fixedly installed on the top plate 3. The internal pressure component 6 is installed on the movable end of the hydraulic cylinder 4. The outer sleeve 7 is connected and cooperates with the internal pressure component 6. The boss 5 has a placement groove 8 for placing the valve body 10. The base 1 has an unpressurizing component 9 inside. The top of the unpressurizing component 9 extends into the interior of the placement groove 8 and is aligned and cooperates with the unpressurizing hole at the bottom of the valve body 10. The base 1 is equipped with a controller 11 for coordinating and controlling the precise operation of the unpressurizing component 9 and the hydraulic cylinder 4.

[0023] The internal pressure assembly 6 includes a limiting ring 61, a first spring 62, a central slider 63, an inner sliding sleeve 64, an inner conical groove 65, a drop hole 66, and two second springs 67. The limiting ring 61 is sleeved and fixed to the outside of the hydraulic cylinder 4. The bottom of the limiting ring 61 is fixedly connected to the first spring 62. The first spring 62 is sleeved on the outside of the movable end of the hydraulic cylinder 4. The bottom end of the first spring 62 is fixedly connected to the central slider 63. The inner side of the central slider 63 is slidably connected to the outside of the movable end of the hydraulic cylinder 4. The outer side of the central slider 63 is slidably connected to the inner side of the outer retaining sleeve 7. The slider 63 is vertically and elastically connected to the inner side of the outer sleeve 7 by two second springs 67. The top of the inner sleeve 64 is fixedly connected to the central slider 63. The inner conical groove 65 and the drop hole 66 are located inside the inner sleeve 64. The tops of the inner conical groove 65 and the drop hole 66 are connected and fitted. The bottom end of the hydraulic cylinder 4 extends into the inner conical groove 65 to push the steel ball into the groove so that it passes through the drop hole 66 and presses against the mounting hole at the top of the valve body 10 at the bottom. The central slider 63 is provided with a feed hole 69 for feeding steel balls and the feed hole 69 is connected to an external automatic feeding device.

[0024] In this invention, the controller 11 activates the hydraulic cylinder 4 to automatically lift, then the valve body 10 is vertically placed into the placement groove 8, with the pressure relief hole facing downwards and aligning with the pressure relief component 9 at the bottom, and the steel ball mounting hole at the top facing upwards. Then, an external automatic feeding device is activated to feed the steel balls one at a time into the inner conical groove 65 inside the inner sleeve 64. Under gravity, the steel balls fall and are locked in the drop hole 66. The hydraulic cylinder 4 is then activated to move downwards, and the outer retaining sleeve 7 descends synchronously, fitting onto the outside of the valve body 10 for auxiliary positioning, and stopping upon contact with the bottom boss 5. Meanwhile, the hydraulic cylinder 4 continues to slide down along the inner side of the outer retaining sleeve 7 via the central slider 63, compressing the second spring 67 to push the inner sleeve 64 downwards, causing the bottom of the drop hole 66 to move downwards and align with the steel ball mounting hole at the top of the valve body 10, until the inner sleeve 64 reaches its limit stop at the end of its stroke. At this point, the hydraulic cylinder 4... The bottom end continues to move downward to contact and vertically pass through the drop hole 66 of the steel ball, which is then pressed into the mounting hole of the valve body 10, thus achieving automatic steel ball pressing. At this time, the hydraulic cylinder 4 remains stationary. Then, the bottom pressure relief component 9 is activated and extends vertically into the pressure relief hole of the valve body 10, pushing the internal pressure relief structure to move and achieve pressure relief. This enables the device to automatically press the steel ball of the solenoid valve, resulting in higher work efficiency and greater precision. It also achieves integrated pressing and depressurization operations, completing the process in one go, which improves work efficiency. This solves the problems of the existing technology where pressing the steel ball of the solenoid valve is generally done manually. Traditional manual pressing is not precise in controlling the pressing force and is prone to scratching the surface of the steel ball, which reduces the airtightness and life of the solenoid valve, or even directly damages it, resulting in a high defect rate. Furthermore, after pressing the steel ball, the solenoid valve still needs to be depressurized, which requires step-by-step operation and is inefficient.

[0025] Please see Figure 3 The bottom end of the hydraulic cylinder 4 is fixedly connected to a buffer pad 41, and the bottom of the buffer pad 41 is provided with an arc-shaped surface 42 that fits the outer curved surface of the steel ball.

[0026] In this invention, the buffer pad 41 buffers the contact between the bottom of the hydraulic cylinder 4 and the steel ball, protecting the surface of the steel ball. At the same time, the arc-shaped surface 42 at the bottom of the buffer pad 41 provides better contact with the steel ball, ensuring vertical pressing accuracy.

[0027] Please see Figure 3 The inner wall of the inner conical groove 65 is provided with an anti-collision liner 651, which is a rubber liner.

[0028] In this invention, the anti-collision liner 651 buffers the steel ball inserted into the inner conical groove 65, preventing the steel ball from bouncing inside and causing damage and deformation, protecting the integrity of the steel ball surface structure, and ensuring the sealing life after pressing the steel ball.

[0029] Please see Figure 3Among them, a rubber retaining ring 68 is provided on the inner side of the connection between the drop hole 66 and the inner conical groove 65, and the inner diameter of the rubber retaining ring 68 is smaller than the diameter of the steel ball.

[0030] In this invention, a rubber retaining ring 68 temporarily limits the steel ball entering the inner conical groove 65. Under the action of gravity, the steel ball falls freely into the rubber retaining ring 68 and stops in the center, which facilitates subsequent downward pressing.

[0031] Please see Figure 3 The downward extension of the drop hole 66 is funnel-shaped, and the inner side of the outer sleeve 7 is fixedly connected with a blocking ring 71 to limit the downward sliding distance of the inner sleeve 64.

[0032] In this invention, the portion extending downward through the drop hole 66 is funnel-shaped. When the inner sliding sleeve 64 descends to the contact blocking ring 71, it stops descending. At this time, the funnel-shaped opening at the bottom of the drop hole 66 fits perfectly into the steel ball mounting hole at the top of the valve body 10, thereby improving the pressing accuracy.

[0033] Please see Figure 4 The pressure relief assembly 9 includes a vertical cylinder 91 and a push block 92. The vertical cylinder 91 is vertically fixed to the inside of the base 1. The movable end of the vertical cylinder 91 passes through and slides into the inside of the placement groove 8 and is fixedly connected to the push block 92. The push block 92 extends into the pressure relief hole at the bottom of the valve body 10.

[0034] In this invention, the vertical cylinder 91 is controlled by the controller 11 to automatically run and drive the push block 92 to move vertically upward and push the pressure relief structure inside the pressure relief hole of the valve body 10 to achieve synchronous pressure relief.

[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An electromagnetic valve steel ball automatic press-fitting and pressure relief integrated equipment, characterized in that: The system includes a base (1), four guide pillars (2), a top plate (3), a hydraulic cylinder (4), a boss (5), an internal pressure assembly (6), an outer sleeve (7), and a valve body (10). The four guide pillars (2) are fixedly installed at the four corners of the top of the base (1), and the top of the guide pillars (2) is fixedly connected to the top plate (3). The hydraulic cylinder (4) is fixedly installed on the top plate (3). The internal pressure assembly (6) is installed on the movable end of the hydraulic cylinder (4). The outer sleeve (7) is connected and cooperates with the internal pressure assembly (6). The boss (5) has a placement groove (8) for placing the valve body (10). The base (1) has a pressure relief assembly (9) inside. The top of the pressure relief assembly (9) extends into the interior of the placement groove (8) and is aligned with the pressure relief hole at the bottom of the valve body (10). The base (1) is equipped with a controller (11) for coordinating and controlling the precise operation of the pressure relief assembly (9) and the hydraulic cylinder (4). The internal pressure assembly (6) includes a limiting ring (61), a first spring (62), a central slider (63), an inner sliding sleeve (64), an inner conical groove (65), a drop hole (66), and two second springs (67). The limiting ring (61) is sleeved and fixed to the outside of the hydraulic cylinder (4). The bottom of the limiting ring (61) is fixedly connected to the first spring (62). The first spring (62) is sleeved on the outside of the movable end of the hydraulic cylinder (4). The bottom end of the first spring (62) is fixedly connected to the central slider (63). The inner side of the central slider (63) is slidably connected to the outside of the movable end of the hydraulic cylinder (4). The outer side of the central slider (63) is slidably connected to the inner side of the outer sleeve (7). On the side, the central slider (63) is vertically elastically connected to the inner side of the outer sleeve (7) by two second springs (67). The top of the inner sleeve (64) is fixedly connected to the central slider (63). The inner conical groove (65) and the drop hole (66) are located inside the inner sleeve (64). The top of the inner conical groove (65) and the drop hole (66) are connected and cooperate. The bottom end of the hydraulic cylinder (4) extends into the inner conical groove (65) to push the steel ball into the groove so that it passes through the drop hole (66) and presses against the mounting hole at the top of the valve body (10) at the bottom. The central slider (63) is provided with a feed hole (69) for feeding steel balls and the feed hole (69) is connected to an external automatic feeding device.

2. The solenoid valve steel ball automatic press-fitting and pressure-releasing integrated equipment according to claim 1, characterized in that: The bottom end of the hydraulic cylinder (4) is fixedly connected to a buffer pad (41), and the bottom of the buffer pad (41) is provided with an arc-shaped surface (42) that fits the outer curved surface of the steel ball.

3. The solenoid valve steel ball automatic press-fitting and pressure-releasing integrated equipment according to claim 1, characterized in that: The inner wall of the inner conical groove (65) is provided with an anti-collision liner (651), which is a rubber liner.

4. The solenoid valve steel ball automatic press-fitting and pressure-releasing integrated equipment according to claim 1, characterized in that: A rubber retaining ring (68) is provided on the inner side of the connection between the drop hole (66) and the inner conical groove (65), and the inner diameter of the rubber retaining ring (68) is smaller than the diameter of the steel ball.

5. The solenoid valve steel ball automatic press-fitting and pressure-releasing integrated equipment according to claim 1, characterized in that: The downward-extending portion of the drop hole (66) is funnel-shaped, and a blocking ring (71) is fixedly connected to the inner side of the outer sleeve (7) to limit the downward sliding distance of the inner sleeve (64).

6. The solenoid valve steel ball automatic press-fitting and pressure-releasing integrated equipment according to claim 1, characterized in that: The pressure relief assembly (9) comprises a vertical cylinder (91) and a pushing block (92), the vertical cylinder (91) is vertically fixedly installed to the inside of the base (1), the movable end of the vertical cylinder (91) penetrates and slides to the inside of the placing groove (8) and is fixedly connected with the pushing block (92), and the pushing block (92) extends to the inside of the pressure relief hole position at the bottom of the valve body (10).

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