Quick polishing tool for valve element of valve positioner

Abstract

The utility model relates to the technical field of grinding tools for valve positioners, and discloses a quick grinding tool for a valve element of a valve positioner, which comprises a clamping seat, two conical clamping blocks are arranged in the clamping seat, and a positioning assembly for positioning the position of the valve element is arranged on the right side in the clamping seat. The positioning assembly comprises a hydraulic rod embedded in the left side of the inner wall of the clamping base. The telescopic cylinder, the telescopic rod and the spring are arranged between the conical clamping block and the hydraulic rod, the conical clamping block is driven by the elastic force of the spring to pre-clamp and position the valve element, then the hydraulic rod can be started to tightly clamp the valve element, and therefore a worker does not need to manually cooperate with the hydraulic rod to drive the conical clamping block to clamp the valve element; the problems that when a hydraulic rod drives a conical clamping block, in order to prevent too high speed, workers are not easy to position, and the risk that the hands of the workers are clamped exists, slow operation is needed, so that the mounting speed of the valve element is slow, and the grinding efficiency of the valve element is influenced are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve positioner polishing frock technical field especially relates to a valve positioner valve core quick polishing frock. BACKGROUND

[0002] The burr feature appears at the edge of the valve positioner valve core during the processing, the burr brings the adverse effect to the appearance and quality of the valve positioner valve core, and influences the normal assembly of the valve positioner valve core, therefore needs to polish the burr, usually utilizes the clamping frock to clamp the valve core, then utilizes the polishing tool to polish the valve core.

[0003] The existing overflow valve core polishing clamping frock (publication number: CN221539402U) has at least the following disadvantages: the device drives two clamping end heads to be close to each other to clamp the valve core through the double-rod cylinder, which leads to that the worker needs to hold the valve core and position it between the two clamping end heads, then the double-rod cylinder drives the two clamping end heads to be close to each other to clamp the valve core, since the port of the small-sized valve core is very small, the double-rod cylinder cannot drive the clamping end head to move too fast during the installation process, otherwise the worker cannot easily adjust the valve core and the clamping end head to be in alignment, and there is a risk of clamping the worker's hand, therefore slow operation is needed, which leads to slow installation speed of the valve core and affects the polishing efficiency of the valve core, therefore the utility model is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a valve positioner valve core quick polishing frock.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A valve positioner valve core quick polishing frock, including clamping seat, the inside of clamping seat is provided with two taper clamping blocks, the inside right side of clamping seat is provided with the positioning assembly for positioning the position of valve core, and the positioning assembly includes the hydraulic rod that is embedded and installed at the left side of the inner wall of clamping seat, one end of the drive rod of hydraulic rod is fixed with telescopic cylinder, the inside of telescopic cylinder is slidably inserted with telescopic rod, one end of telescopic rod is fixed with connecting plate, corresponding taper clamping block is connected with one side of connecting plate, spring is fixed between connecting plate and the drive rod of hydraulic rod, and the outer wall of telescopic cylinder and telescopic rod is movably sleeved with spring respectively.

[0007] As a further scheme of the utility model, the inner wall right side of clamping seat is embedded and installed with servo motor, the output shaft end of servo motor is fixed with first mounting seat, one side of connecting plate is rotatably connected with second mounting seat through bearing, and the inside of two taper clamping blocks is connected with first mounting seat and second mounting seat respectively.

[0008] As a further scheme of the utility model, the inner wall right side of the clamping seat is provided with a supporting end cover, a fixed sealing ring is fixed at the abutting position of the inner wall right side of the clamping seat on one side of the supporting end cover, the output shaft of the servo motor is sleeved with the inside of the supporting end cover, a rotary sealing ring is installed at the sleeving position of the output shaft of the servo motor and the supporting end cover, and an axial sealing ring is installed at the connecting position of the hydraulic rod and the inner wall left side of the clamping seat.

[0009] As a further scheme of the utility model, the supporting end cover is detachably installed with the inner wall right side of the clamping seat by bolts, and the two conical clamping blocks are detachably installed with the inside of the first mounting seat and the second mounting seat by bolts.

[0010] As a further scheme of the utility model, the front side of the supporting end cover is fixed with a supporting frame, the outer wall of the conical clamping block is fixed with a supporting ring, the first thrust bearing is fixed between the supporting frame and the supporting ring, and the second thrust bearing is fixed between the second mounting seat and the connecting plate.

[0011] As a further scheme of the utility model, the outer wall of the tip of the two conical clamping blocks is provided with an anti-skid groove.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] By setting the telescopic cylinder, the telescopic rod and the spring between the conical clamping block and the hydraulic rod, when the staff installs the valve core of the valve positioner on the two conical clamping blocks, the conical clamping block can be driven by the elastic force of the spring to pre-clamp and position the valve core first, and then the hydraulic rod can be started to realize the close clamping of the valve core, so that the staff does not need to manually cooperate with the hydraulic rod to drive the conical clamping block to clamp the valve core, effectively preventing the staff from positioning and the risk of clamping the staff's hand when the hydraulic rod drives the conical clamping block to prevent the speed from being too fast, and thus the installation speed of the valve core is slow, which affects the polishing efficiency of the valve core. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a kind of valve positioner valve core quick polishing tool's stereoscopic structure schematic diagram;

[0015] Figure 2 The utility model provides a kind of valve positioner valve core quick polishing tool's first time stereoscopic sectional structure schematic diagram;

[0016] Figure 3 The utility model provides a kind of valve positioner valve core quick polishing tool's second time stereoscopic sectional structure schematic diagram;

[0017] Figure 4 The utility model provides a kind of valve positioner valve core quick polishing tool's second time stereoscopic sectional structure schematic diagram; Figure 3A local stereo structure of the middle A is shown in the enlarged schematic view.

[0018] In the figure: 1, clamping seat; 101, conical clamping block; 2, hydraulic rod; 201, telescopic cylinder; 202, telescopic rod; 203, connecting plate; 204, spring; 205, servo motor; 206, first mounting seat; 207, second mounting seat; 3, support end cover; 301, fixed sealing ring; 302, rotary sealing ring; 303, axial sealing ring; 4, support frame; 401, support ring; 402, first thrust bearing; 403, second thrust bearing; 5, anti-skid groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following will further describe the present application in combination with specific embodiments.

[0020] In the description of the present application, it should be pointed out that the directions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Reference Figures 1-4The utility model provides a kind of valve positioner valve core quick polishing tool, including clamping seat 1, the inside of the clamping seat 1 is provided with two tapered clamping blocks 101, the inside right side of clamping seat 1 is provided with the positioning assembly for positioning the position of valve core, positioning assembly includes embedded installation in the left side of the inner wall of clamping seat 1 hydraulic rod 2, the one end of the drive rod of hydraulic rod 2 is fixed with telescopic cylinder 201, telescopic cylinder 201 is slidably inserted in the inside of telescopic rod 202, the one end of telescopic rod 202 is fixed with connecting plate 203, corresponding tapered clamping block 101 is connected with the side of connecting plate 203, spring 204 is fixed between connecting plate 203 and the drive rod of hydraulic rod 2, spring 204 is movably sleeved with the outer wall of telescopic cylinder 201 and telescopic rod 202 respectively.

[0023] Refer to Figures 2-4 In the embodiment, the inner wall right side of the clamping seat 1 is embedded with servo motor 205, the output shaft end of servo motor 205 is fixed with first mounting seat 206, the side of connecting plate 203 is rotatably connected with second mounting seat 207 through bearing, two tapered clamping blocks 101 are connected with the inside of first mounting seat 206 and second mounting seat 207 respectively, by pushing corresponding tapered clamping block 101, make two tapered clamping blocks 101 separate greater than the gap of valve positioner valve, make tapered clamping block 101 drive telescopic rod 202 slide in the inside of telescopic cylinder 201, at this time, spring 204 is compressed and reversely exerts elastic force on corresponding tapered clamping block 101, subsequently, valve positioner valve core is placed between two tapered clamping blocks 101, corresponding tapered clamping block 101 is moved, so that two tapered clamping blocks 101 are respectively abutted in the hole of the both ends of valve core, and the elastic force of spring 204 is used to drive two tapered clamping blocks 101 to pre-clamp and position valve core, subsequently, it can start hydraulic rod 2 to quickly drive telescopic cylinder 201 and telescopic rod 202 abut, and exert pressure on tapered clamping block 101, so that two tapered clamping blocks 101 realize the close clamping of valve core, since tapered clamping block 101 is manually adjusted, and spring 204 is automatically clamped, simultaneously, clamping force is small, it is not necessary for staff to manually cooperate with hydraulic rod 2 to drive tapered clamping block 101 to clamp valve core, effectively prevent the risk that staff is not easy to position when hydraulic rod 2 drives tapered clamping block 101 to prevent speed from being too fast, and staff's hand is clamped, thus need to run slowly, and the installation speed of valve core is slow, affect the polishing efficiency of valve core, after completing the close clamping of valve core, by starting servo motor 205, the clamped valve core can be quickly rotated, so as to cooperate with polishing mechanism to polish.

[0024] Refer to Figures 2-4In the embodiment, the inner wall right side of the clamping seat 1 is provided with a support end cover 3, one side of the support end cover 3 is fixed with a fixed sealing ring 301 at the abutting position of the inner wall right side of the clamping seat 1, the output shaft of the servo motor 205 is sleeved with the inside of the support end cover 3, the output shaft of the servo motor 205 is sleeved with the support end cover 3, and the rotating sealing ring 302 is installed at the sleeving position. The hydraulic rod 2 is connected with the inner wall left side of the clamping seat 1, and the axial sealing ring 303 is installed at the connection position. By arranging the fixed sealing ring 301, the rotating sealing ring 302 and the axial sealing ring 303, the sealing of the servo motor 205 and the hydraulic rod 2 can be guaranteed, and the polishing liquid is prevented from entering the inside of the servo motor 205 and the hydraulic rod 2 through the connection position of the servo motor 205 and the hydraulic rod 2 and the clamping seat 1 when the valve core is polished, so as to prevent the equipment from being damaged.

[0025] Referring to Figures 2-4 In the embodiment, the support end cover 3 is detachably mounted on the inner wall right side of the clamping seat 1 by bolts, and the two conical clamping blocks 101 are detachably mounted in the interiors of the first mounting seat 206 and the second mounting seat 207 by bolts respectively. By detachably mounting the two conical clamping blocks 101 in the interiors of the first mounting seat 206 and the second mounting seat 207 by bolts respectively, the conical clamping blocks 101 can be conveniently disassembled and replaced.

[0026] Referring to Figures 2-4 In the embodiment, the support end cover 3 is fixed with a support frame 4 on the front side, and a support ring 401 is fixed on the outer wall of the conical clamping block 101. The first thrust bearing 402 is fixed between the support frame 4 and the support ring 401, and the second thrust bearing 403 is fixed between the second mounting seat 207 and the connecting plate 203. By arranging the support frame 4 and the first thrust bearing 402, the conical clamping block 101 at the servo motor 205 can be axially supported. By arranging the second thrust bearing 403, the conical clamping block 101 at the hydraulic rod 2 can be axially supported, so as to ensure that the two conical clamping blocks 101 can stably rotate when clamping the valve core.

[0027] Referring to Figures 2-4 In the embodiment, anti-skid grooves 5 are formed in the outer walls of the tips of the two conical clamping blocks 101. By forming the anti-skid grooves 5 in the outer walls of the tips of the conical clamping blocks 101, the friction between the conical clamping blocks 101 and the valve core is increased, and the clamping effect on the valve core is increased.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: in use, when the valve positioner valve core is polished, the corresponding conical clamping block 101 is pushed to make the two conical clamping blocks 101 separate more than the gap of the valve positioner valve, so that the conical clamping block 101 drives the telescopic rod 202 to slide in the inside of the telescopic cylinder 201, at this time, the spring 204 is compressed and exerts elastic force on the corresponding conical clamping block 101 in reverse, then the valve positioner valve core is placed between the two conical clamping blocks 101, the corresponding conical clamping block 101 is moved, so that the two conical clamping blocks 101 abut in the holes at both ends of the valve core respectively, and the elastic force of the spring 204 is used to drive the two conical clamping blocks 101 to pre-clamp and position the valve core, then the telescopic cylinder 201 and the telescopic rod 202 can be driven to abut by starting the hydraulic rod 2 quickly, and pressure is exerted on the conical clamping block 101, so that the two conical clamping blocks 101 realize the close clamping of the valve core, since the conical clamping block 101 is manually adjusted, and the spring 204 is used for automatic clamping, the clamping force is small, the staff does not need to manually cooperate with the hydraulic rod 2 to drive the conical clamping block 101 to clamp the valve core, which effectively prevents the staff from positioning when the hydraulic rod 2 drives the conical clamping block 101 to prevent the speed from being too fast, and there is a risk of clamping the staff's hand, so slow operation is needed, which leads to slow installation speed of the valve core and affects the polishing efficiency of the valve core, after the close clamping of the valve core is completed, the clamped valve core can be quickly rotated by starting the servo motor 205, so as to cooperate with the polishing mechanism to polish, by arranging the fixed sealing ring 301, the rotary sealing ring 302 and the axial sealing ring 303, the sealing of the servo motor 205 and the hydraulic rod 2 can be guaranteed, so that when the valve core is polished, the polishing liquid cannot enter the inside of the servo motor 205 and the hydraulic rod 2 through the connection between the servo motor 205 and the hydraulic rod 2 and the clamping seat 1 to cause equipment damage, the two conical clamping blocks 101 are detachably installed in the inside of the first mounting seat 206 and the second mounting seat 207 by bolts, which facilitates the disassembly and replacement of the conical clamping block 101, the conical clamping block 101 at the servo motor 205 can be axially supported by arranging the support frame 4 and the first thrust bearing 402, the conical clamping block 101 at the hydraulic rod 2 can be axially supported by the second thrust bearing 403, so that the two conical clamping blocks 101 can stably rotate when clamping the valve core, the anti-skid groove 5 is arranged on the outer wall of the tip of the conical clamping block 101, which increases the friction force between the conical clamping block 101 and the valve core and improves the clamping effect on the valve core.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A valve positioner spool quick polishing tool, comprising a clamping seat (1), characterized in that, The inside of the clamping seat (1) is provided with two tapered clamping blocks (101), the right side of the inside of the clamping seat (1) is provided with a positioning assembly for positioning the position of the valve core, the positioning assembly comprises a hydraulic rod (2) embeddedly installed on the left side of the inner wall of the clamping seat (1), one end of the driving rod of the hydraulic rod (2) is fixedly connected with a telescopic cylinder (201), the inside of the telescopic cylinder (201) is slidably inserted with a telescopic rod (202), one end of the telescopic rod (202) is fixedly connected with a connecting plate (203), the corresponding tapered clamping block (101) is connected with one side of the connecting plate (203), the connecting plate (203) and the driving rod of the hydraulic rod (2) are fixedly connected with a spring (204), and the spring (204) is movably sleeved with the outer wall of the telescopic cylinder (201) and the telescopic rod (202) respectively.

2. The valve positioner spool quick polishing tool of claim 1, wherein, The right side of the inner wall of the clamping seat (1) is embeddedly installed with a servo motor (205), one end of the output shaft of the servo motor (205) is fixedly connected with a first mounting seat (206), one side of the connecting plate (203) is rotatably connected with a second mounting seat (207) through a bearing, and the two tapered clamping blocks (101) are connected with the interiors of the first mounting seat (206) and the second mounting seat (207) respectively.

3. The valve positioner spool quick polishing tool of claim 1, wherein, The right side of the inner wall of the clamping seat (1) is installed with a support end cover (3), the abutting position of one side of the support end cover (3) and the right side of the inner wall of the clamping seat (1) is fixedly connected with a fixed sealing ring (301), the output shaft of the servo motor (205) is sleeved with the inside of the support end cover (3), the sleeving position of the output shaft of the servo motor (205) and the support end cover (3) is installed with a rotary sealing ring (302), and the connecting position of the hydraulic rod (2) and the left side of the inner wall of the clamping seat (1) is installed with an axial sealing ring (303).

4. The valve positioner spool quick polishing tool of claim 3, wherein, The support end cover (3) is detachably installed with the right side of the inner wall of the clamping seat (1) by bolts, and the two tapered clamping blocks (101) are detachably installed with the interiors of the first mounting seat (206) and the second mounting seat (207) by bolts respectively.

5. The valve positioner spool quick polishing tool of claim 4, wherein, The front side of the support end cover (3) is fixedly connected with a support frame (4), the outer wall of the corresponding tapered clamping block (101) is fixedly connected with a support ring (401), the first thrust bearing (402) is fixedly connected between the support frame (4) and the support ring (401), and the second thrust bearing (403) is fixedly connected between the second mounting seat (207) and the connecting plate (203).

6. The valve positioner spool quick polishing tool of claim 1, wherein, The outer wall of the tip of the two tapered clamping blocks (101) is provided with an anti-skid groove (5).

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