Efficient valve ball polishing machine

Abstract

The utility model discloses a kind of high-efficiency valve ball polishing machines, including processing table, clamping assembly and polishing assembly are provided on the processing table;The clamping assembly includes hollow shaft rotationally connected in the processing table, two sliding blocks extending to the outside of the hollow shaft are slidably connected in the hollow shaft, and the sliding block is equipped with the inner support plate acting on valve ball at the end away from the hollow shaft, further including the clamping mechanism for controlling the inside and outside position of the sliding block, driving cavity is equipped in the processing table, the hollow shaft extends to the driving cavity downwards, the utility model is used for valve ball polishing, and the utility model can make valve ball rotate after clamping, and then two polishing discs are used to polish valve ball, and this kind of work flow greatly improves polishing efficiency;The utility model is equipped with disc body, and automatic unloading work of polishing finished valve ball can be realized when disc body rises, to improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve ball production technology, and in particular to a high-efficiency valve ball polishing machine. Background Technology

[0002] After the valve ball is manufactured, its outer surface needs to be polished to increase its sealing performance and reduce the operating torque.

[0003] However, as shown in the ball valve ball outer cylindrical surface grinding device disclosed in application number 202320177896.5, the current grinding device generally only sets a single polishing part to polish the valve ball, which limits the polishing efficiency and affects the production speed. In addition, the valve ball is locked by a double-head clamping method in the above device. During the clamping process, the operator needs to hold the valve ball by hand, which poses a certain risk of being pinched. Therefore, the above defects need to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-efficiency valve ball polishing machine to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a high-efficiency valve ball polishing machine, including a processing table, on which a clamping assembly and a polishing assembly are provided;

[0006] The clamping assembly includes a hollow shaft rotatably connected to the machining table, two sliders extending out of the hollow shaft are slidably connected inside the hollow shaft, and an inner support plate acting on a valve ball is installed at the end of the slider away from the hollow shaft. It also includes a clamping mechanism for controlling the inner and outer positions of the sliders. The machining table is provided with a drive cavity, the hollow shaft extends downward into the drive cavity, and a No. 1 motor for driving the hollow shaft is installed in the drive cavity.

[0007] The polishing assembly includes two slides distributed on the left and right sides of the hollow shaft. A polishing disc is rotatably connected to the slides, and a second motor for driving the polishing disc to rotate is provided inside the slides. A grinding cylinder for horizontally driving the slides is provided on the processing table.

[0008] Preferably, the clamping mechanism includes an insert plate installed inside the hollow shaft and limited by the bracket to slide up and down relative to the hollow shaft. The upper side of the insert plate and its left and right sides are chamfered to form a first inclined surface. The two sliders are distributed left and right, and the sides of the two sliders that are close to each other and their lower sides are chamfered to form a second inclined surface that can be attached to the first inclined surface.

[0009] The lower end of the insert plate is integrally formed with a cylinder, and an external support cylinder is fixedly installed in the drive cavity. The upper end of the first piston rod in the external support cylinder is equipped with a seat, and the cylinder at the lower end of the insert plate is rotatably connected to the seat.

[0010] Preferably, a spring is connected between the two insert plates, and the spring is distributed on the front and rear sides of the insert plates.

[0011] Preferably, a first gear is mounted on the output shaft of the first motor, and a second gear meshing with the first gear is mounted on the curved surface of the hollow shaft.

[0012] Preferably, the outer curved surface of the polishing disc is provided with an annular groove adapted to the outer curved surface of the valve ball.

[0013] Preferably, it also includes a material ejection assembly, which includes a disc body fitted outside the hollow shaft, and a control mechanism for controlling the up and down position and angle of the disc body;

[0014] The upper side of the processing table is also equipped with a discharge channel with its bottom surface sloping downwards and backwards.

[0015] Preferably, the control mechanism includes a front cylinder and a rear cylinder installed in the drive cavity. The front cylinder and the rear cylinder are respectively located on the front and rear sides of the hollow shaft. The second piston rod in the front cylinder is connected to a first push-pull rod, which is upward and hinged to the lower side of the disc. The third piston rod in the rear cylinder is connected to a second push-pull rod, which is upward and pushes against the lower side of the disc.

[0016] Preferably, the upper end face of the second push-pull rod is equipped with a roller.

[0017] This utility model provides a high-efficiency valve ball polishing machine, which has the following beneficial effects:

[0018] This invention is used for polishing valve balls. It enables the valve ball to be rotated after being clamped, and then polished by two polishing discs. This process greatly improves the polishing efficiency.

[0019] This utility model has a disc body inside, which can automatically unload the polished valve ball when the disc body rises, thereby improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure within this utility model;

[0022] Figure 3 yes Figure 2Schematic diagram of the structure of AA;

[0023] Figure 4 This is an enlarged schematic diagram of point B in diagram 2;

[0024] Figure 5 yes Figure 3 Enlarged diagram of point C in the middle.

[0025] In the picture:

[0026] 11. Processing table; 12. Drive cavity; 21. Hollow shaft; 22. Slider; 23. Inner support plate; 24. Motor No. 1; 25. Insert plate; 26. Outer support cylinder; 27. Seat; 41. Slide; 42. Polishing disc; 43. Grinding cylinder; 51. Disc body; 52. Discharge channel; 61. Front cylinder; 62. Rear cylinder; 71. Push-pull rod No. 1; 72. Push-pull rod No. 2. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Reference Figures 1-5 According to an embodiment of the present invention, a high-efficiency valve ball polishing machine includes a processing table 11, on which a clamping assembly and a polishing assembly are provided. The clamping assembly is used to clamp the valve ball, and the polishing assembly is used to polish the clamped and stabilized valve ball.

[0032] In this embodiment, the clamping assembly includes a hollow shaft 21 rotatably connected to the processing table 11, two sliders 22 extending out of the hollow shaft 21 are slidably connected inside the hollow shaft 21, and an inner support plate 23 acting on a valve ball is installed at the end of the slider 22 away from the hollow shaft 21. It also includes a clamping mechanism for controlling the inner and outer positions of the sliders 22. The processing table 11 is provided with a drive cavity 12, the hollow shaft 21 extends downward into the drive cavity 12, and a first motor 24 for driving the hollow shaft 21 to rotate is installed in the drive cavity 12.

[0033] The scheme in which the first motor 24 drives the hollow shaft 21 to rotate is that a first gear is installed on the output shaft inside the first motor 24, and a second gear meshing with the first gear is installed on the curved surface of the hollow shaft 21.

[0034] The clamping mechanism includes an insert plate 25 installed inside the hollow shaft 21 and limited by the bracket to slide only up and down. The upper side of the insert plate 25 and its left and right sides are chamfered to form a first inclined surface. The two sliders 22 are distributed left and right, and the sides of the two sliders 22 that are close to each other and their lower sides are chamfered to form a second inclined surface that can be attached to the first inclined surface.

[0035] The lower end of the insert plate 25 is integrally formed with a cylinder, and an external support cylinder 26 is fixedly installed in the drive cavity 12. The upper end of the first piston rod in the external support cylinder 26 is equipped with a seat 27, and the cylinder at the lower end of the insert plate 25 is rotatably connected to the seat 27.

[0036] With the above settings, the external support cylinder 26 can drive the insert plate 25 to move up and down without being affected by the rotation of the hollow shaft 21.

[0037] In addition, a spring is connected between the two insert plates 25, and the spring is distributed on the front and rear sides of the insert plate 25 so that the two sliders 22 can move closer to each other and reset after the insert plate 25 sinks.

[0038] Specific clamping procedure:

[0039] First, the operator inserts the valve ball through the hollow shaft 21 and onto the outside of the hollow shaft 21. Then, the outer support cylinder 26 controls the seat 27 and the insert plate 25 to rise. During this process, the insert plate 25 pushes the slider 22 and the inner support plate 23 outward until the inner support plate 23 is pressed against the inner wall of the valve ball. At this point, the valve ball is clamped. Then, the first motor 24 is energized and drives the hollow shaft 21 to rotate through the first gear and the second gear. This causes the insert plate 25, the slider 22, the inner support plate 23, and the valve ball fixed to it to rotate, so as to facilitate subsequent polishing.

[0040] The polishing assembly includes two slide blocks 41 distributed on the left and right sides of the hollow shaft 21. A polishing disc 42 is rotatably connected to the slide block 41, and a second motor for driving the polishing disc 42 to rotate is provided inside the slide block 41. A grinding cylinder 43 is provided on the processing table 11 to drive the slide block 41 to move laterally. An annular groove adapted to the outer curved surface of the polishing disc 42 is provided in the outer curved surface of the valve ball.

[0041] Specific polishing process:

[0042] After the valve ball is clamped, the grinding cylinder 43 controls the slide block 41 to move closer to each other until the valve ball is attached to the polishing disc 42. At this time, the polishing disc 42 rotates under the drive of the second motor and grinds the valve ball.

[0043] It should be noted that during the polishing process, the valve ball will enter the annular groove to further maintain stability.

[0044] In a second embodiment of the high-efficiency valve ball polishing machine, a material ejection assembly is further included. The material ejection assembly includes a disc 51 sleeved outside the hollow shaft 21, and a control mechanism for controlling the up and down position and angle of the disc 51.

[0045] The upper side of the processing table 11 is also provided with a discharge channel 52 that slopes downwards and backwards.

[0046] The control mechanism includes a front cylinder 61 and a rear cylinder 62 installed in the drive cavity 12. The front cylinder 61 and the rear cylinder 62 are located on the front and rear sides of the hollow shaft 21, respectively. The second piston rod in the front cylinder 61 is connected upward to a first push-pull rod 71, and the first push-pull rod 71 is hinged to the lower side of the disc body 51. The third piston rod in the rear cylinder 62 is connected to the second push-pull rod 72, and the second push-pull rod 72 pushes upward against the lower side of the disc body 51.

[0047] After polishing is completed and the insert plate 25 descends, the front cylinder 61 and the rear cylinder 62 respectively control the first push-pull rod 71 and the second push-pull rod 72 to rise, and lift the valve ball through the disc body 51. When the valve ball is on the upper side of the hollow shaft 21, the first push-pull rod 71 can continue to rise, while the second push-pull rod 72 remains stationary, so that the disc body 51 is in an inclined state, thereby causing the valve ball located on the disc body 51 to roll backward and enter the discharge channel 52.

[0048] Furthermore, during the above-mentioned material discharge process, if the valve ball gets stuck in the disc 51, the first push-pull rod 71 can accelerate the speed of the valve ball to fly out and avoid abnormal material discharge. In addition, a rubber layer can be added to the bottom surface of the discharge channel 52 to prevent damage to the valve ball.

[0049] The valve ball can also be prevented from getting stuck by limiting the size of the valve ball to be polished. In this embodiment, the inner curved surface of the disc 51 is chamfered with respect to the upper side surface.

[0050] In addition, the upper end face of the second push-pull rod 72 is equipped with a roller to avoid excessive friction between the upper end of the second push-pull rod 72 and the lower side of the disc body 51 when only the second push-pull rod 72 is raised.

[0051] During the valve ball clamping process, the valve ball can be placed on the disc 51 for automatic clamping. After clamping is completed, the disc 51 is moved down to avoid interfering with the polishing work, thereby increasing the functionality of the disc 51.

[0052] Specifically, the drive cavity 12 is equipped with a mounting plate, and the front cylinder 61, the rear cylinder 62, the first motor 24 and the external support cylinder 26 are all fixed on the mounting plate. The front cylinder 61 and the rear cylinder 62 are located on the front and rear sides of the external support cylinder 26, and are indirectly connected to the first push-pull rod 71 and the second push-pull rod 72 through a connecting plate.

[0053] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A high-efficiency valve ball polishing machine, comprising a processing table (11), characterized in that: The processing table (11) is equipped with a clamping assembly and a polishing assembly; The fixture assembly includes a hollow shaft (21) rotatably connected to the processing table (11), two sliders (22) extending out of the hollow shaft (21) are slidably connected inside the hollow shaft (21), and an inner support plate (23) acting on a valve ball is installed at the end of the slider (22) away from the hollow shaft (21). It also includes a clamping mechanism for controlling the inner and outer positions of the sliders (22). The processing table (11) is provided with a drive cavity (12), the hollow shaft (21) extends downward into the drive cavity (12), and a No. 1 motor (24) for driving the hollow shaft (21) is installed in the drive cavity (12). The polishing assembly includes two slides (41) distributed on the left and right sides of the hollow shaft (21). A polishing disc (42) is rotatably connected to the slide (41), and a second motor for driving the polishing disc (42) to rotate is provided inside the slide (41). A grinding cylinder (43) for horizontally driving the slide (41) is provided on the processing table (11).

2. The high-efficiency valve ball polishing machine according to claim 1, characterized in that: The clamping mechanism includes an insert plate (25) installed inside the hollow shaft (21) and limited by the bracket, which can only slide up and down relative to the hollow shaft (21). The upper side of the insert plate (25) and its left and right sides are chamfered to form a first inclined surface. The two sliders (22) are distributed left and right, and the sides of the two sliders (22) that are close to each other and their lower sides are chamfered to form a second inclined surface that can be attached to the first inclined surface. The lower end of the insert plate (25) is integrally formed with a cylinder, and an external support cylinder (26) is fixedly installed in the drive cavity (12). The upper end of the first piston rod in the external support cylinder (26) is equipped with a seat (27), and the cylinder at the lower end of the insert plate (25) is rotatably connected to the seat (27).

3. The high-efficiency valve ball polishing machine according to claim 2, characterized in that: A spring is connected between the two insert plates (25), and the spring is distributed on the front and rear sides of the insert plates (25).

4. The high-efficiency valve ball polishing machine according to claim 1, characterized in that: The output shaft of the first motor (24) is equipped with a first gear, and the curved surface of the hollow shaft (21) is equipped with a second gear that meshes with the first gear.

5. The high-efficiency valve ball polishing machine according to claim 1, characterized in that: The polishing disc (42) has an annular groove adapted to the outer curved surface of the valve ball.

6. The high-efficiency valve ball polishing machine according to claim 1, characterized in that: It also includes a material ejection assembly, which includes a disc (51) sleeved outside the hollow shaft (21), and a control mechanism for controlling the up and down position and angle of the disc (51); The upper side of the processing table (11) is also provided with a discharge channel (52) with the bottom surface tilted downwards.

7. The high-efficiency valve ball polishing machine according to claim 6, characterized in that: The control mechanism includes a front cylinder (61) and a rear cylinder (62) installed in the drive cavity (12). The front cylinder (61) and the rear cylinder (62) are located on the front and rear sides of the hollow shaft (21), respectively. The second piston rod in the front cylinder (61) is connected to a first push-pull rod. The first push-pull rod is upward and hinged to the lower side of the disc body (51). The third piston rod in the rear cylinder (62) is connected to a second push-pull rod. The second push-pull rod is upward and pushes against the lower side of the disc body (51).

8. The high-efficiency valve ball polishing machine according to claim 7, characterized in that: The upper end face of the second push-pull rod is equipped with a roller.

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