Valve seat steel ball riveting device

Abstract

The utility model discloses a valve seat steel ball riveting and pressing device, including frame, be equipped with the support of along X -axis sliding on the frame, be equipped with the clamping component for clamping the valve seat on the support, be equipped with the drive component of drive the valve seat rotation on the clamping component, the top of support is equipped with the riveting and pressing component for riveting and pressing steel ball on the valve seat, the riveting and pressing component can move along Y -axis under the pull of push -and -pull component, still be equipped with the down -pressing component on the frame, the down -pressing component can drive the riveting and pressing component slip along Z -axis. The utility model's beneficial effect mainly reflects: the design is ingenious, and the compact structure of this device is reasonable, and the layout realizes the full -automatic overturn of valve seat, does not need manual operation, greatly improves work efficiency, reduces work intensity. In addition, when needing riveting and pressing different specifications steel ball and valve seat, only needs to replace riveting and pressing component, does not need to replace other components, greatly enhances the applicability.

Description

Technical Field

[0001] This utility model relates to the field of riveting tooling technology, and more specifically, to a valve seat steel ball riveting device. Background Technology

[0002] Valve seats are used to mount various control valves, and their interiors contain numerous machined chambers. These chambers are distributed longitudinally and laterally, and to create them, the machining tool needs to leave machining ports on the valve seat surface. After machining, these ports need to be sealed to prevent leakage. Existing sealing processes typically involve assembling gaskets or sealing blocks, requiring additional workpiece machining and adding to the assembly process. Furthermore, the sealing performance of the machining ports cannot be effectively guaranteed. Using steel balls riveted into the machining ports can also effectively create a good seal without requiring additional workpieces. However, valve seats have complex structures and irregular shapes, and there is a lack of flexible and effective riveting fixtures for pressing the steel balls into place.

[0003] For example, CN223044024U discloses a valve seat steel ball riveting fixture, which includes a base, a hydraulic cylinder, and a riveting rod. A column is fixedly connected to one side of the base, and a crossbeam is fixedly connected to the column. The hydraulic cylinder is fixedly mounted on the crossbeam, with its output shaft facing vertically downwards. The upper end of the riveting rod is detachably connected to the hydraulic cylinder's output shaft. A movable base plate is placed on the base, and several bottom support plates, several back limiting plates, and several side limiting plates are detachably connected to the movable base plate. The valve seat is placed on the bottom support plate, with one side of the valve seat tightly against the back limiting plate and the other side tightly against the side limiting plate. The side of the valve seat where the steel ball needs to be riveted faces vertically upwards. However, this fixture can only rivet and seal one side of the valve seat. If riveting and sealing the other side of the valve seat is required, the valve seat needs to be removed, rotated 180°, and then repositioned. This operation needs to be performed manually or by a robot, which is time-consuming and labor-intensive, severely impacting work efficiency and exhibiting significant limitations. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a valve seat steel ball riveting device.

[0005] The objective of this utility model is achieved through the following technical solution: A valve seat steel ball riveting device includes a frame, a bracket that slides along the X-axis on the frame, a clamping assembly for holding a valve seat on the bracket, and a driving assembly for driving the valve seat to rotate on the clamping assembly; a riveting assembly for riveting steel balls onto the valve seat is provided above the bracket, the riveting assembly can move along the Y-axis under the pull of the push-pull assembly, and a pressing assembly is also provided on the frame, the pressing assembly can drive the riveting assembly to slide along the Z-axis.

[0006] Preferably, the clamping assembly includes at least a carrier block fixedly disposed on one side of the bracket, and a rotating block pivotally disposed on the carrier block; a clamping cylinder is fixedly disposed on the other side of the bracket, a clamping plate is fixedly disposed on the cylinder shaft of the clamping cylinder, and a rotating block is pivotally disposed on the clamping plate, the rotating block and the rotating block cooperate to complete the clamping of the valve seat.

[0007] Preferably, a bushing is fixed on the bracket, and a rotating shaft adapted to the bushing is provided on the bushing, with one end of the rotating shaft fixed on the clamping plate.

[0008] Preferably, the drive assembly includes at least a motor mount fixed on the bracket, a drive motor fixed on the motor mount, and the motor shaft of the drive motor connected to the rotating block via a connector.

[0009] Preferably, a guide rail is fixed on the frame, a guide block adapted to the guide rail is provided on the guide rail, a support plate is fixed on the guide block, upright plates are fixed at both ends of the support plate, a guide block is fixed on the upright plate, a guide rail adapted to the guide block is provided on the guide block, and the guide rail is fixed on the bracket; an upper lifting cylinder is fixed on the support plate, and the cylinder shaft of the upper lifting cylinder is fixedly connected to the bracket; a support block for supporting the valve seat is also fixed on the support plate.

[0010] Preferably, a transmission block is fixed on the frame, and a transmission screw is pivotally mounted on the transmission block. One end of the transmission screw is connected to the motor shaft of the transmission motor. A transmission nut that drives the transmission screw is also pivotally mounted on the transmission screw, and the support plate is fixed on the transmission nut.

[0011] Preferably, the pressing assembly includes a pressing electric cylinder fixedly mounted on the frame, a sliding plate fixedly mounted on the output end of the pressing electric cylinder, a sliding sleeve fixedly mounted around the sliding plate, the frame having a column, and the sliding sleeve sleeved on the column.

[0012] Preferably, the push-pull assembly includes a slide rail fixed to the sliding plate, a slider adapted to the slide rail, a connecting plate fixed to the slider, and a riveting assembly fixed to the connecting plate; a push-pull cylinder is fixed to the sliding plate, and the cylinder shaft of the push-pull cylinder is connected to the connecting plate through a connector.

[0013] Preferably, the riveting assembly includes a support block fixed on the connecting plate, a riveting cylinder fixed on the support block, and a riveting head fixed on the cylinder shaft of the riveting cylinder.

[0014] The beneficial effects of this utility model are mainly reflected in: 1. The device boasts an ingenious design, compact structure, and rational layout, enabling fully automatic valve seat rotation without manual operation, significantly improving work efficiency and reducing workload. Furthermore, when different specifications of steel balls and valve seats need to be riveted, only the riveting assembly needs to be replaced, without replacing other components, maximizing its applicability.

[0015] 2. When the upper cylinder drive screw drives the bracket to move upward, it can avoid interference between the drive component and the bearing block drive screw when the valve seat is rotated, thus avoiding noise generation and extending service life.

[0016] 3. By integrating the transmission screw drive assembly's transmission screw onto the clamping assembly's transmission screw, a high degree of integration is achieved, resulting in a more compact structure, reduced space occupation, easier layout, and enhanced applicability of the device.

[0017] 4. By utilizing a lead screw drive to move the bracket's transmission lead screw, the movement position of the lead screw can be precisely controlled, maximizing the accuracy of the clamping position, ensuring precision during riveting, and improving the yield rate. Attached Figure Description

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings: Figure 1 : A perspective view of a preferred embodiment of the present invention; Figure 2 : A perspective view of the bracket, clamping assembly, and driving assembly in a preferred embodiment of this utility model; Figure 3 : A perspective view of a preferred embodiment of the present invention, in which the bracket, clamping assembly and driving assembly are removed. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 3 As shown, this utility model discloses a valve seat steel ball riveting device, including a frame 1 and a bracket 2 slidably disposed thereon along the X-axis. The above is the preferred embodiment of this application. Of course, the bracket 2 can also slide along the Y-axis on the frame 1, both of which fall within the protection scope of this utility model.

[0024] Specifically, a guide rail 11 is fixedly mounted on the frame 1, and a guide block 12 adapted to the guide rail 11 is provided on the guide rail 11. A support plate 13 is fixedly mounted on the guide block 12. A transmission block 19 is fixedly mounted on the frame 1, and a transmission screw 191 is pivotally mounted on the transmission block 19. One end of the transmission screw 191 is connected to the motor shaft of the transmission motor 192. A transmission nut that is driven by the transmission screw 191 is also pivotally mounted on the transmission screw 191, and the support plate 13 is fixedly mounted on the transmission nut. The above-mentioned use of screw transmission to drive the support 2 to move allows for precise control of the movement position of the support 2, ensuring the accuracy of the clamping position to the greatest extent, ensuring the accuracy during riveting, and improving the yield rate.

[0025] In this invention, a support block 18 for supporting the valve seat 100 is fixedly mounted on the support plate 13. Vertical plates 14 are fixedly mounted on the support plate 13 on both sides of the support block 18. Guide blocks 15 are fixedly mounted on the vertical plates 14, and guide rails 16 adapted to the guide blocks 15 are provided on the guide blocks 15. The guide rails 16 are fixedly mounted on the bracket 2. An upward-lifting cylinder 17 is also fixedly mounted on the support plate 13, and the cylinder shaft of the upward-lifting cylinder 17 is fixedly connected to the bracket 2. In the above-mentioned configuration, when the upward-lifting cylinder 17 drives the bracket to move upward, interference between the drive assembly and the support block 18 is avoided when the valve seat rotates, thus preventing noise generation and extending service life.

[0026] The bracket 2 is provided with a clamping assembly 3 for clamping the valve seat 100. The clamping assembly 3 is provided with a driving assembly 4 for driving the valve seat 100 to rotate. In the above, the driving assembly 4 is integrated on the clamping assembly 3, which achieves a high degree of integration, making the structure more compact, reducing the space occupied, facilitating reasonable layout, and enhancing the applicability of the device.

[0027] Furthermore, the clamping assembly 3 includes at least a carrier block 31 fixedly disposed on one side of the bracket 2, and a rotating block 32 pivotally disposed on the carrier block 31. A clamping cylinder 33 is fixedly disposed on the other side of the bracket 2, and a clamping plate 34 is fixedly disposed on the cylinder shaft of the clamping cylinder 33. A rotating block 35 is pivotally disposed on the clamping plate 34, and the rotating block 35 and the rotating block 32 cooperate to clamp the valve seat 100.

[0028] The drive assembly 4 includes at least a motor base 41 fixed on the bracket 2, a drive motor 42 fixed on the motor base 41, and the motor shaft of the drive motor 42 connected to the rotating block 32 via a connector 43. This structure is simple, convenient, stable, reliable, easy to disassemble and maintain, and improves work efficiency.

[0029] In addition, a bushing is fixed on the bracket 2, and a rotating shaft 37 adapted to it is provided on the bushing. One end of the rotating shaft 37 is fixed on the clamping plate 34. The bushing and the rotating shaft 37 can improve the stability of the movement of the clamping plate 34.

[0030] In this invention, a riveting assembly 5 for riveting steel balls onto the valve seat 100 is provided above the bracket 2. The riveting assembly 5 can move along the Y-axis under the pull of the push-pull assembly 6. A pressing assembly 7 is also provided on the frame 1, which can drive the riveting assembly 5 to slide along the Z-axis. This ingenious design allows only the riveting assembly 5 to be replaced when riveting steel balls and valve seats of different specifications are required, without replacing other components. This greatly improves work efficiency and maximizes applicability.

[0031] In the above description, the pressing assembly 7 includes a pressing electric cylinder 71 fixedly mounted on the frame 1. A sliding plate 72 is fixedly mounted on the output end of the pressing electric cylinder 71, and a sliding sleeve 73 is fixedly mounted around the sliding plate 72. The frame 1 has a column 74, and the sliding sleeve 73 is sleeved on the column 74. In this application, the cooperation of the column 74 and the sliding sleeve 73 can reduce the swaying of the sliding plate 72 during movement and improve the stability of movement.

[0032] The push-pull assembly 6 includes a slide rail 61 fixed on the sliding plate 72, a slider 62 adapted to the slide rail 61, a connecting plate 65 fixed on the slider 62, and the riveting assembly 5 fixed on the connecting plate 65; a push-pull cylinder 63 is fixed on the sliding plate 72, and the cylinder shaft of the push-pull cylinder 63 is connected to the connecting plate 65 through a connector 64.

[0033] The riveting assembly 5 includes a support block 51 fixed on the connecting plate 65, a riveting cylinder 52 fixed on the support block 51, and a riveting head 53 fixed on the cylinder shaft of the riveting cylinder 52.

[0034] The working process of this utility model is briefly described below: Manually or robotically, the valve seat 100 is clamped onto the support block 18. At this time, the drive motor 192 starts, driving the support plate 13 to move to the corresponding position via the drive screw and drive nut. Simultaneously, the cylinder shaft of the clamping cylinder 33 extends, driving the clamping plate 34 to move towards the drive block 32 until the rotating block 35 and the rotating block 32 cooperate to complete the clamping of the valve seat 100.

[0035] After the above is completed, the robotic arm clamps the steel ball and places it on the valve seat 100. The cylinder shaft of the push-pull cylinder 63 pulls the connecting plate 65 to move until the riveting assembly 5 is directly above the support block 18. The cylinder shaft of the riveting cylinder 52 extends, driving the riveting head 53 to move downward until the riveting head 53 abuts against the valve seat. At this time, the downward pressing electric cylinder 71 is activated, and its output end drives the sliding plate 72 to move downward until the riveting is completed.

[0036] After riveting is completed, the cylinder shaft of the upper lifting cylinder 17 extends, causing the valve seat 100 to separate from the support block 18. At this time, the drive motor 42 starts, driving the rotating block 35 and the valve seat to rotate 180° via the rotating block 32. The cylinder shaft of the upper lifting cylinder 17 retracts, causing the valve seat 100 to abut against the support block 18. At this time, the robot arm clamps and places the steel ball onto the valve seat 100. The cylinder shaft of the push-pull cylinder 63 pulls the connecting plate 65 to move until the riveting assembly 5 is directly above the support block 18. The cylinder shaft of the riveting cylinder 52 extends, driving the riveting head 53 to move downward until the riveting head 53 abuts against the valve seat. At this time, the lower pressing electric cylinder 71 starts, and its output end drives the sliding plate 72 to move downward until the riveting is completed.

[0037] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0038] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A valve seat steel ball riveting device, comprising a frame (1), characterized in that: The frame (1) is provided with a bracket (2) that slides along the X-axis. The bracket (2) is provided with a clamping assembly (3) for clamping the valve seat (100). The clamping assembly (3) is provided with a driving assembly (4) for driving the valve seat (100) to rotate. Above the bracket (2) is a riveting assembly (5) for riveting steel balls onto the valve seat (100). The riveting assembly (5) can move along the Y-axis under the pull of the push-pull assembly (6). The frame (1) is also provided with a pressing assembly (7). The pressing assembly (7) can drive the riveting assembly (5) to slide along the Z-axis.

2. The valve seat steel ball riveting device according to claim 1, characterized in that: The clamping assembly (3) includes at least a carrier block (31) fixedly disposed on one side of the bracket (2), and a rotating block (32) pivotally disposed on the carrier block (31); a clamping cylinder (33) is fixedly disposed on the other side of the bracket (2), and a clamping plate (34) is fixedly disposed on the cylinder shaft of the clamping cylinder (33), and a rotating block (35) is pivotally disposed on the clamping plate (34). The rotating block (35) and the rotating block (32) cooperate to clamp the valve seat (100).

3. The valve seat steel ball riveting device according to claim 2, characterized in that: A bushing is fixed on the bracket (2), and a rotating shaft (37) adapted to it is provided on the bushing. One end of the rotating shaft (37) is fixed on the clamping plate (34).

4. The valve seat steel ball riveting device according to claim 2, characterized in that: The drive assembly (4) includes at least a motor mount (41) fixed on the bracket (2), a drive motor (42) fixed on the motor mount (41), and the motor shaft of the drive motor (42) is connected to the rotating block (32) through a connector (43).

5. The valve seat steel ball riveting device according to claim 2, characterized in that: The frame (1) is fixedly provided with a guide rail (11), the guide rail (11) is provided with a guide block (12) adapted to it, the guide block (12) is fixedly provided with a support plate (13), the two ends of the support plate (13) are fixedly provided with upright plates (14), the upright plate (14) is fixedly provided with a guide block (15), the guide block (15) is provided with a guide rail (16) adapted to it, the guide rail (16) is fixedly provided on the bracket (2); the support plate (13) is fixedly provided with an upper cylinder (17), the cylinder shaft of the upper cylinder (17) is fixedly connected to the bracket (2); the support plate (13) is also fixedly provided with a support block (18) for supporting the valve seat (100).

6. The valve seat steel ball riveting device according to claim 5, characterized in that: A transmission block (19) is fixedly mounted on the frame (1), and a transmission screw (191) is pivotally mounted on the transmission block (19). One end of the transmission screw (191) is connected to the motor shaft of the transmission motor (192). A transmission nut that is driven by the transmission screw (191) is also pivotally mounted on the transmission screw (191), and the support plate (13) is fixedly mounted on the transmission nut.

7. The valve seat steel ball riveting device according to claim 1, characterized in that: The pressing assembly (7) includes a pressing electric cylinder (71) fixed on the frame (1), a sliding plate (72) fixed on the output end of the pressing electric cylinder (71), a sliding sleeve (73) fixed around the sliding plate (72), the frame (1) has a column (74), and the sliding sleeve (73) is sleeved on the column (74).

8. The valve seat steel ball riveting device according to claim 7, characterized in that: The push-pull assembly (6) includes a slide rail (61) fixed on the sliding plate (72), a slider (62) adapted to the slide rail (61), a connecting plate (65) fixed on the slider (62), and a riveting assembly (5) fixed on the connecting plate (65); a push-pull cylinder (63) is fixed on the sliding plate (72), and the cylinder shaft of the push-pull cylinder (63) is connected to the connecting plate (65) through a connector (64).

9. The valve seat steel ball riveting device according to claim 8, characterized in that: The riveting assembly (5) includes a support block (51) fixed on the connecting plate (65), a riveting cylinder (52) fixed on the support block (51), and a riveting head (53) fixed on the cylinder shaft of the riveting cylinder (52).

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