A valve sealing surface finishing device

Abstract

This utility model discloses a valve sealing surface precision machining device, relating to the field of valve processing technology. The device includes a base plate and an auxiliary mechanism. A machining housing is fixedly mounted on the top of the base plate. The machining housing contains multiple sets of mounting boxes and grinding blocks, and two sets of arc-shaped blocks. The auxiliary mechanism includes a floating adjustment mechanism and a center positioning mechanism. The center positioning mechanism includes a second motor, a rotating plate, a connecting block, and a connecting frame. The second motor is fixedly mounted on the rear side of the machining housing. Through the coordinated use of the second motor, the rotating plate, the connecting block, the connecting frame, and the arc-shaped blocks, the center positioning mechanism can fix the center of the valve body, ensuring that the axis of the sealing surface is consistent with the valve's design datum, assembly datum, and usage datum, thus improving the machining accuracy of the sealing surface.

Description

Technical Field

[0001] This utility model relates to the field of valve processing technology, and in particular to a valve sealing surface precision machining device. Background Technology

[0002] Chinese patent document CN213561893U discloses a portable valve sealing surface grinding device, including a base and a lifting frame. The lifting frame is installed at one end of the top surface of the base, and a grinding table that can be adjusted to multiple positions is installed on the side of the lifting frame on the top surface of the base. The moving end of the lifting frame is connected to a push-type telescopic mechanism, and the telescopic mechanism is connected to a self-rotating mechanism that can position the workpiece for rotation. This portable valve sealing surface grinding device can easily change the processing position by moving the grinding table laterally, ensuring the orderly progress of fine, medium and rough machining. In addition, the device uses the rotation of the grinding disc in conjunction with the rotation of the workpiece cylinder, and the reciprocating extension and retraction drive of the self-rotating mechanism by the telescopic mechanism, so that the valve disc is fully ground, the machining is precise, and time and labor are saved.

[0003] The aforementioned portable valve sealing surface grinding device, when processing the sealing surface, fixes it by contacting the valve body with the extrusion block. This may cause the axis of the sealing surface to be inconsistent with the valve's design datum, assembly datum, and usage datum, thus reducing the processing accuracy of the sealing surface during the processing. Utility Model Content

[0004] The purpose of this invention is to provide a valve sealing surface finishing device that can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve sealing surface finishing device, comprising:

[0006] The base plate has a machining housing fixedly installed on its top. The machining housing has multiple sets of mounting boxes and grinding blocks inside, and two sets of arc-shaped blocks inside.

[0007] The auxiliary mechanism includes a floating adjustment mechanism and a center positioning mechanism. The center positioning mechanism includes a second motor, a rotating plate, connecting blocks, and a connecting frame. The second motor is fixedly installed on the rear side of the processing housing. The output shaft of the second motor extends into the interior of the processing housing and is fixedly installed on the rotating plate. Two sets of connecting blocks are hinged to the front side of the rotating plate, and a connecting frame is hinged to the rear side of each set of connecting blocks.

[0008] Preferably, the floating adjustment mechanism includes a threaded rod, a pressure block, a connecting plate, a damper, and a spring. The floating adjustment mechanism is in multiple sets. Each set of mounting boxes has a pressure block and a connecting plate slidably installed inside. The top of the pressure block is rotatably mounted with a threaded rod. The bottom of the connecting plate is fixedly mounted with a damper and a spring. The spring is sleeved on the outer wall of the damper. The bottom of the pressure block is in contact with the connecting plate.

[0009] Preferably, each of the multiple sets of mounting boxes has a strip-shaped opening on its front side, one end of each of the multiple sets of connecting plates extends through the strip-shaped opening to the front side of the mounting box and is fixedly installed with a set of grinding blocks, one end of each of the multiple sets of threaded rods extends to the outer wall of a set of mounting boxes and is fixedly installed with a handle, and the multiple sets of threaded rods are threadedly connected to a set of mounting boxes.

[0010] Preferably, each of the two sets of connecting frames is fixedly installed with a set of arc-shaped blocks on an adjacent side.

[0011] Preferably, a cylinder is fixedly installed on the top of the processing housing, the free end of the cylinder extends into the interior of the processing housing and is fixedly installed on a fixing plate, a motor is fixedly installed on the rear side of the fixing plate, the output shaft of the motor extends to the front side of the fixing plate and is fixedly installed on a circular plate, and the front side of the circular plate is fixedly connected to multiple sets of mounting boxes.

[0012] Preferably, the rear inner wall of the processing housing is provided with two sets of sliding grooves, and a set of sliders is slidably installed in each set of sliding grooves. One end of each set of sliders is fixedly connected to a set of connecting brackets.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The valve sealing surface precision machining device, through the cooperation of motor 2, rotating plate, connecting block, connecting frame and arc block, the center positioning mechanism can fix the center of the valve body, so that the axis of the sealing surface is consistent with the design datum, assembly datum and use datum of the valve during the machining process, thereby improving the machining accuracy of the sealing surface.

[0015] (2) The valve sealing surface finishing device, through the combined use of threaded rod, pressure block, connecting plate, damper and spring, can adjust the grinding block by floating during the processing, as the sealing surface material may have local uneven hardness, so as to avoid excessive grinding at hard points or insufficient grinding at soft points, and can adapt to the unevenness of the material. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a perspective view of the present invention, in sectional view.

[0018] Figure 2This is a structural analysis diagram of the central positioning mechanism of this utility model;

[0019] Figure 3 This is a perspective view of the floating mechanism of this utility model, in sectional view.

[0020] Figure 4 This is a front perspective view of the present utility model.

[0021] Reference numerals: 1. Base plate; 2. Machining housing; 3. Cylinder; 4. Fixing plate; 5. Motor 1; 6. Circular plate; 7. Mounting box; 8. Floating adjustment mechanism; 801. Threaded bar; 802. Pressure block; 803. Connecting plate; 804. Damper; 805. Spring; 9. Grinding block; 10. Center positioning mechanism; 1001. Motor 2; 1002. Rotating plate; 1003. Connecting block; 1004. Connecting frame; 11. Arc block; 12. Slider. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a valve sealing surface finishing device, including a base plate 1 and an auxiliary mechanism. A processing housing 2 is fixedly installed on the top of the base plate 1. Multiple sets of mounting boxes 7 and grinding blocks 9 are arranged inside the processing housing 2. Two sets of arc-shaped blocks 11 are arranged inside the processing housing 2.

[0024] The auxiliary mechanism includes a floating adjustment mechanism 8 and a center positioning mechanism 10. The center positioning mechanism 10 includes a second motor 1001, a rotating plate 1002, a connecting block 1003, and a connecting frame 1004. The second motor 1001 is fixedly installed on the rear side of the machining housing 2. The output shaft of the second motor 1001 extends into the interior of the machining housing 2 and is fixedly installed on the rotating plate 1002. Two sets of connecting blocks 1003 are hinged to the front side of the rotating plate 1002. A set of connecting frames 1004 is hinged to the rear side of each set of connecting blocks 1003. The center positioning mechanism 10 can fix the center of the valve body, so that the axis of the sealing surface is consistent with the design datum, assembly datum, and usage datum of the valve during the machining process, thereby improving the machining accuracy of the sealing surface.

[0025] The floating adjustment mechanism 8 includes a threaded rod 801, a pressure block 802, a connecting plate 803, a damper 804, and a spring 805. There are multiple sets of floating adjustment mechanisms 8. Each set of mounting boxes 7 has a pressure block 802 and a connecting plate 803 slidably installed inside. The threaded rod 801 is rotatably installed on the top of the pressure block 802. The damper 804 and the spring 805 are fixedly installed on the bottom of the connecting plate 803. The spring 805 is sleeved on the outer wall of the damper 804. The bottom of the pressure block 802 is in contact with the connecting plate 803. During the processing, since the sealing surface material may have local uneven hardness, the floating adjustment mechanism 8 can drive the grinding block 9 to float and adjust, avoiding over-grinding at hard points or under-grinding at soft points, and can adapt to the unevenness of the material.

[0026] Each of the multiple sets of mounting boxes 7 has a strip-shaped opening on its front side. One end of each of the multiple sets of connecting plates 803 extends through the strip-shaped opening to the front side of the mounting box 7 and is fixedly installed with a set of grinding blocks 9. One end of each of the multiple sets of threaded rods 801 extends to the outer wall of a set of mounting boxes 7 and is fixedly installed with a handle. Each of the multiple sets of threaded rods 801 is threadedly connected to a set of mounting boxes 7.

[0027] Each of the two sets of connecting brackets 1004 is fixedly installed on one side of an arc-shaped block 11.

[0028] A cylinder 3 is fixedly installed on the top of the processing housing 2. The free end of the cylinder 3 extends into the interior of the processing housing 2 and is fixedly installed on a fixing plate 4. A motor 5 is fixedly installed on the rear side of the fixing plate 4. The output shaft of the motor 5 extends to the front side of the fixing plate 4 and is fixedly installed on a circular plate 6. The front side of the circular plate 6 is fixedly connected to multiple sets of mounting boxes 7.

[0029] The rear inner wall of the processing housing 2 is provided with two sets of sliding grooves, and a set of sliders 12 are slidably installed in each set of sliding grooves. One end of each set of sliders 12 is fixedly connected to a set of connecting brackets 1004.

[0030] Working principle: When work is required, the start motor 1001 is controlled. The output shaft of the start motor 1001 drives the rotating plate 1002 to rotate. Through the action of the slide groove and the slider 12, the connecting block 1003 moves, which can drive the two sets of connecting frames 1004 to move laterally. In turn, it can drive the two sets of arc blocks 11 to fix the valve body. Rotating the threaded rod 801 can drive the pressure block 802 to slide, which can then drive the connecting plate 803 to slide the grinding block 9. Adjust the multiple sets of grinding blocks 9 to be the same as the valve sealing surface diameter. Through the compression damper 804 and the spring 805, the cylinder 3 is started at the same time. The free end of the cylinder 3 drives the fixed plate 4 to move downward, which can then drive the multiple sets of grinding blocks 9 to move through the opening to the valve sealing surface. Through the rebound of the damper 804 and the spring 805, the multiple sets of grinding blocks 9 can contact the sealing surface. Controlling the start motor 5 can make the multiple sets of grinding blocks 9 grind the sealing surface.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A valve sealing surface finishing device, characterized in that, include: The base plate (1) has a machining housing (2) fixedly installed on its top. The machining housing (2) has multiple sets of mounting boxes (7) and grinding blocks (9) inside. The machining housing (2) also has two sets of arc-shaped blocks (11) inside. The auxiliary mechanism includes a floating adjustment mechanism (8) and a center positioning mechanism (10). The center positioning mechanism (10) includes a second motor (1001), a rotating plate (1002), a connecting block (1003), and a connecting frame (1004). The second motor (1001) is fixedly installed on the rear side of the processing housing (2). The output shaft of the second motor (1001) extends into the interior of the processing housing (2) and is fixedly installed on the rotating plate (1002). Two sets of connecting blocks (1003) are hinged to the front side of the rotating plate (1002), and a set of connecting frames (1004) is hinged to the rear side of each of the two sets of connecting blocks (1003).

2. The valve sealing surface finishing device according to claim 1, characterized in that: The floating adjustment mechanism (8) includes a threaded rod (801), a pressure block (802), a connecting plate (803), a damper (804), and a spring (805). There are multiple sets of floating adjustment mechanisms (8). Each set of mounting boxes (7) has a pressure block (802) and a connecting plate (803) slidably installed inside. The top of the pressure block (802) is rotatably mounted with a threaded rod (801). The bottom of the connecting plate (803) is fixedly mounted with a damper (804) and a spring (805). The spring (805) is sleeved on the outer wall of the damper (804). The bottom of the pressure block (802) is in contact with the connecting plate (803).

3. The valve sealing surface finishing device according to claim 2, characterized in that: Each of the multiple sets of mounting boxes (7) has a strip-shaped opening on its front side. One end of each of the multiple sets of connecting plates (803) extends through the strip-shaped opening to the front side of the mounting box (7) and is fixedly installed with a set of grinding blocks (9). One end of each of the multiple sets of threaded rods (801) extends to the outer wall of a set of mounting boxes (7) and is fixedly installed with a handle. Each of the multiple sets of threaded rods (801) is threadedly connected to a set of mounting boxes (7).

4. The valve sealing surface finishing device according to claim 3, characterized in that: Each of the two sets of connecting frames (1004) is fixedly installed on one side of an arc-shaped block (11).

5. The valve sealing surface finishing device according to claim 4, characterized in that: A cylinder (3) is fixedly installed on the top of the processing housing (2). The free end of the cylinder (3) extends into the interior of the processing housing (2) and is fixedly installed on a fixing plate (4). A motor (5) is fixedly installed on the rear side of the fixing plate (4). The output shaft of the motor (5) extends to the front side of the fixing plate (4) and is fixedly installed on a circular plate (6). The front side of the circular plate (6) is fixedly connected to multiple sets of mounting boxes (7).

6. The valve sealing surface finishing device according to claim 5, characterized in that: The rear inner wall of the processing housing (2) is provided with two sets of sliding grooves, and a set of sliders (12) are slidably installed in each set of sliding grooves. One end of each set of sliders (12) is fixedly connected to a set of connecting brackets (1004).

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