Clamp device for ball valve machining
By designing a radially movable fixture device, the problem of frequent disassembly and replacement of fixtures in ball valve processing is solved, and the limit operation and flange fixation are achieved to adapt to valve bodies of different diameters, reducing processing time and labor intensity.
Patent Information
- Application Number
- CN202421114199.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During the processing of ball valves, existing fixtures need to be frequently disassembled and replaced according to valve bodies of different diameters, which increases working strength and processing time.
A fixture device including a fixing clamp, an outer fixing disc and a main fixing bracket is designed to achieve radial movement through the rotation of the middle tooth shaft, adapt to the limit operation of the valve body of different diameters, and is driven by the motor and the internal electric screw and The worm gear mechanism expands or shrinks the diameter, avoiding the removal and replacement of the fixture.
It can adapt to the processing of valve bodies of different diameters without disassembly and replace the clamp, save processing time and labor intensity, and meet the fixed operation needs of the valve body and flange.
Smart Images
Figure CN222289449U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball valve processing fixtures, in particular to a fixture device used for ball valve processing. Background Art
[0002] Ball valves are widely used in petroleum, chemical, metallurgy, papermaking, electric power, mining and other industries. Ball valves are opened and closed by rotating the internal ball.
[0003] The ball valve is composed of a valve body, a ball, a valve stem and other parts that are independently processed and then assembled. The valve stem hole, inner wall, flange, etc. of the valve body are all processed and manufactured by CNC lathes. When processing the valve stem hole, a boss is set in the center of the upper and lower fixtures, and the boss fits against the inner wall of the valve body to ensure that the valve body is in a central position. Valve bodies of different diameters require replacement of fixtures with bosses of corresponding diameters. When processing the valve body flange, the corresponding fixture also needs to be disassembled and replaced. Each time the processing position is changed, the fixture needs to be disassembled, which increases the workload of personnel and increases processing time. Summary of the invention
[0004] The disclosed embodiment relates to a clamp device for ball valve processing. When the valve stem mounting hole is processed, the fixed clamp block and the inner wall of the valve body are contacted and limited to ensure that the valve body is in the center position. The fixed clamp block is radially moved by the rotation of the middle gear shaft to expand or reduce the diameter, thereby adapting to the limiting operation of valve bodies of different diameters and eliminating the need to disassemble and replace the clamp for valve bodies of different diameters.
[0005] In a first aspect of the present disclosure, a clamp device for ball valve processing is provided, which specifically includes: a fixed clamp block, an outer fixed disk and a main fixed bracket, the fixed clamp block and the outer fixed disk are slidably connected, the main fixed bracket is arranged on the outer side of the outer fixed disk, the front end of the fixed clamp block is rotatably connected to a middle connecting rod, the front end of the middle connecting rod is rotatably connected to a middle gear shaft, the middle gear shaft is rotatably connected to the center of the outer fixed disk, and the top of the front end section of the fixed clamp block is an inclined structure whose height decreases toward the front end.
[0006] In at least some embodiments, the outer annular array of the middle gear shaft has a middle connecting rod, and the outer annular array on the top of the main fixed bracket has a fixed clamping block. When the middle gear shaft rotates, the fixed clamping blocks of the main fixed bracket array move radially, and multiple fixed clamping blocks move radially to expand or reduce the diameter.
[0007] In at least some embodiments, a middle worm wheel rotates in the middle of the outer fixed disk, the middle worm wheel is meshed with the outer worm, a lower fixed disk is fixed at the bottom of the outer fixed disk, and an outer connecting gear block is fixed on the outer side of the lower fixed disk.
[0008] In at least some embodiments, the outer worm is rotatably connected to the outer fixed disk, the middle worm wheel is meshingly connected to the middle gear shaft, the outer worm, the middle worm wheel and the middle gear shaft rotate synchronously, and the middle gear shaft pushes the fixed clamp to move via the middle connecting rod.
[0009] In at least some embodiments, an inner electric screw is rotated in the middle of the main fixing bracket, a motor is arranged at the tail end of the inner electric screw to drive the screw to rotate, and an inner gear is rotated in the middle of the main fixing bracket.
[0010] In at least some embodiments, the main fixed bracket has externally connected gear blocks and a lower fixed plate sliding vertically in opposite directions above and below, and both sides of the intermediate gear are meshedly connected with externally connected gear blocks.
[0011] In at least some embodiments, the external connecting tooth block on the upper part of the main fixing bracket is threadedly connected to the internal electric screw, the fixing clamps of the upper and lower external fixing plates of the main fixing bracket are vertically oppositely arranged, the external thread of the internal electric screw guides the external connecting tooth block to move upward, and the upper and lower external connecting tooth blocks are simultaneously moved up and down in opposite directions through the transmission of the intermediate gears.
[0012] The utility model provides a clamp device for ball valve processing, which has the following beneficial effects:
[0013] When processing the valve stem mounting hole, the fixed clamp block and the inner wall of the valve body are contacted and limited to ensure that the valve body is in the center position. The fixed clamp block moves radially through the rotation of the middle gear shaft to expand or reduce the diameter, adapting to the limiting operation of valve bodies of different diameters, eliminating the need to disassemble and replace the clamp for valve bodies of different diameters.
[0014] The top inclined structure of the fixed clamp block can also perform fixing operations on the outside of the valve body, satisfying the fixing operations during the processing of the flanges at both ends of the valve body and satisfying different processing procedures, without the need for fixture fixing and replacement operations during the processing of the flanges at both ends of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.
[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.
[0017] In the attached picture:
[0018] Figure 1 A schematic diagram showing the overall structure of the present application;
[0019] Figure 2 A schematic diagram showing a fixed clamping block structure of the present application is shown;
[0020] Figure 3A schematic structural diagram of a cross section of an external fixing plate of the present application is shown;
[0021] Figure 4 A structural schematic diagram of a cross section of the main fixing bracket of the present application is shown;
[0022] Figure 5 A schematic diagram showing the structure of the fixed clamp block of the present application in a close state;
[0023] Figure 6 A structural schematic diagram showing the split state of the present application.
[0024] Reference numerals list
[0025] 1. Fixed clamp block; 101. Middle connecting rod; 102. Middle gear shaft;
[0026] 2. External fixed plate; 201. Middle worm wheel; 202. External worm; 203. Lower fixed plate; 204. External connecting gear block;
[0027] 3. Main fixed bracket; 301. Internal electric screw; 302. Intermediate gear. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Example 1: Please refer to Figures 1 to 6 :
[0030] The utility model proposes a clamp device for ball valve processing, comprising: a fixed clamp block 1, an outer fixed disk 2 and a main fixed bracket 3, the head end of the fixed clamp block 1 is rotatably connected with a middle connecting rod 101, the head end of the middle connecting rod 101 is rotatably connected with a middle gear shaft 102, the middle gear shaft 102 is rotatably connected with the center of the outer fixed disk 2, the top of the head end section of the fixed clamp block 1 is a slope structure with a height reduced toward the head end, the outer ring array of the middle gear shaft 102 has the middle connecting rod 101, the outer ring array of the top of the main fixed bracket 3 has the fixed clamp block 1, when the middle gear shaft 102 rotates, the fixed clamp blocks 1 of the array of the main fixed bracket 3 move radially, and the multiple fixed clamp blocks 1 move radially to expand or reduce the diameter, and the fixed clamp block 1 and the outer fixed disk 2 are connected to each other. Sliding connection, a middle worm wheel 201 rotates in the middle of the outer fixed disk 2, the middle worm wheel 201 and the outer worm 202 are meshed and connected, a lower fixed disk 203 is fixed at the bottom of the outer fixed disk 2, an external connecting tooth block 204 is fixed on the outer side of the lower fixed disk 203, a main fixed bracket 3 is arranged on the outer side of the outer fixed disk 2, an inner electric screw 301 rotates in the middle of the main fixed bracket 3, a motor is arranged at the tail end of the inner electric screw 301 to drive the rotation, an inner intermediate gear 302 rotates in the middle of the main fixed bracket 3, the upper and lower parts of the main fixed bracket 3 are vertically oppositely slid with an external connecting tooth block 204 and a lower fixed disk 203, both sides of the intermediate gear 302 are meshed and connected with an external connecting tooth block 204, and the upper and lower outer fixed disks 2 move toward the center to clamp and fix the valve body in the middle.
[0031] In the disclosed embodiment, the outer worm 202 is rotatably connected to the outer fixed disk 2, the middle worm wheel 201 is meshingly connected to the middle gear shaft 102, the outer worm 202, the middle worm wheel 201 and the middle gear shaft 102 rotate synchronously, the middle gear shaft 102 pushes the fixed clamp block 1 to move through the middle connecting rod 101, and the multiple fixed clamp blocks 1 are radially moved to expand or reduce the diameter through the rotation of the middle gear shaft 102, so as to adapt to valve bodies of different diameters and adapt to the limiting operation of valve bodies of different diameters.
[0032] In the disclosed embodiment, the external connecting tooth block 204 on the upper part of the main fixed bracket 3 is screwed with the internal electric screw 301, and the fixed clamping blocks 1 of the upper part of the main fixed bracket 3 and the lower external fixed disk 2 are vertically arranged, and the external thread of the internal electric screw 301 guides the external connecting tooth block 204 to move upward, and the upper and lower external connecting tooth blocks 204 are simultaneously moved up and down in opposite directions through the transmission of the intermediate gear 302, and the upper and lower external connecting tooth blocks 204 and the external fixed disk 2 move in opposite directions around the center of the rotating disk of the CNC lathe, and the external fixed disk 2 moves in opposite directions to clamp the valve body in the middle.
[0033] Embodiment 2, on the basis of embodiment 1, the inner electric screw 301 can also be driven by a hydraulic device, and the outer connected tooth block 204 can be moved up and down by the hydraulic device, and adapted and adjusted according to different numerical control equipment. The outer worm 202 can also be connected to a motor or a hydraulic device, and driven to rotate by the motor or the hydraulic device, and adapted and adjusted according to different numerical control equipment.
[0034] The working principle of this embodiment is as follows: the main fixed bracket 3 is fixedly connected to the rotating disk of the CNC lathe. When the valve stem mounting hole is processed, the motor drives the inner electric screw 301 to rotate. The external thread of the inner electric screw 301 guides the external connection tooth block 204 to move up. The upper and lower external connection tooth blocks 204 are driven by the intermediate gear 302 to move up and down in opposite directions at the same time. The upper and lower external connection tooth blocks 204 move in opposite directions around the center of the rotating disk of the CNC lathe. The outer fixed disk 2 and the fixed clamping block 1 move away synchronously, and the valve body is placed on the outside of the fixed clamping block 1. The tail end of the fixed clamping block 1 and the inner wall of the valve body are contacted and limited. The upper and lower outer fixed disks 2 move toward the center to clamp the middle valve body to ensure that the valve body is in the center position. The outer worm 202 engages to drive the middle worm wheel 201 to rotate. 01 The meshing middle gear shaft 102 rotates, and the middle gear shaft 102 pushes the fixed clamping block 1 to move through the middle connecting rod 101. The multiple fixed clamping blocks 1 are radially moved by the rotation of the middle gear shaft 102 to expand or reduce the diameter, so as to adapt to the limiting operation of valve bodies of different diameters, and eliminate the situation that valve bodies of different diameters need to disassemble and replace the clamps. When the diameter of the outer fixed disk 2 is the same as the inner diameter of the valve body, the valve body contacts the lower fixed disk 203 at both ends, and the outer fixed disk 2 contacts the inside of the valve body for limiting fixation. When the valve body is smaller than the outer fixed disk 2, the valve body contacts the outer fixed disk 2 at both ends, and the fixed clamping block 1 contacts the inside of the valve body for limiting fixation. When the valve body is larger than the outer fixed disk 2, the valve body contacts the lower fixed disk 203 at both ends, and the fixed clamping block 1 contacts the inside of the valve body for limiting fixation.
[0035] When it is necessary to process the flanges at both ends of the valve body, the valve body is rotated ninety degrees, and the fixed clamp block 1 moves with the external fixed plate 2 close to the outside of the valve body. The top inclined surface structure of the fixed clamp block 1 can also clamp and fix the outer arc surface of the valve body, which can meet the fixing operation when processing the flanges at both ends of the valve body, and can also meet the fixing operation when processing the valve stem holes. It can meet different processing procedures such as valve stem holes and flanges, and there is no need to fix and replace the fixtures when processing the flanges at both ends of the valve body, which saves processing time, eliminates the labor of moving and disassembling the fixtures, and reduces the labor intensity of the personnel.
[0036] In this article, there are a few points to note:
[0037] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.
[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.
[0039] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A fixture device for ball valve processing, comprising: A fixed clamp block (1), an outer fixing plate (2) and a main fixing bracket (3); characterized in that the fixed clamp block (1) and the outer fixing plate (2) are slidably connected, a main fixing bracket (3) is arranged outside the outer fixing plate (2), a front end of the fixed clamp block (1) is rotatably connected to a middle connecting rod (101), a front end of the middle connecting rod (101) is rotatably connected to a middle gear shaft (102), the middle gear shaft (102) and the outer fixing plate (2) are rotatably connected, and a top of a front end section of the fixed clamp block (1) is an inclined surface structure that descends toward the front end.
2. A fixture device for ball valve processing according to claim 1, characterized in that: The outer annular array of the middle gear shaft (102) has a middle connecting rod (101), and the outer annular array on the top of the main fixed bracket (3) has a fixed clamping block (1). When the middle gear shaft (102) rotates, the fixed clamping blocks (1) of the array of the main fixed bracket (3) move radially.
3. A fixture device for ball valve processing according to claim 1, characterized in that: A middle worm wheel (201) is rotatably mounted in the middle of the outer fixed disk (2), the middle worm wheel (201) and the outer worm (202) are meshingly connected, a lower fixed disk (203) is fixed at the bottom of the outer fixed disk (2), and an outer connecting tooth block (204) is fixed on the outer side of the lower fixed disk (203).
4. A fixture device for ball valve processing according to claim 3, characterized in that: The outer worm (202) and the outer fixed disk (2) are rotationally connected, the middle worm wheel (201) and the middle gear shaft (102) are meshingly connected, and the outer worm (202), the middle worm wheel (201) and the middle gear shaft (102) rotate synchronously.
5. A fixture device for ball valve processing according to claim 4, characterized in that: An inner electric screw (301) is rotatably provided in the middle of the main fixed bracket (3), and an inner gear (302) is rotatably provided in the middle of the main fixed bracket (3).
6. A fixture device for ball valve processing according to claim 5, characterized in that: The upper and lower parts of the main fixed bracket (3) are provided with externally connected tooth blocks (204) and a lower fixed plate (203) which slide vertically in opposite directions, and both sides of the intermediate gear (302) are meshingly connected with externally connected tooth blocks (204).
7. A fixture device for ball valve processing according to claim 6, characterized in that: The external connection tooth block (204) and the internal electric screw (301) on the upper part of the main fixing bracket (3) are screwed together, and the fixing clamping blocks (1) of the upper and lower external fixing plates (2) of the main fixing bracket (3) are arranged vertically opposite to each other.