Multi-angle adjustable positioning device for producing and processing inner valve cover

Abstract

The utility model relates to the field of inner valve cover production and processing devices, and discloses a multi-angle adjustable positioning device for inner valve cover production and processing, which comprises a preset operation plane, the middle end of the top side of the preset operation plane is fixedly connected with a processing clamping base, and the interior of the processing clamping base is in threaded connection with a first adjusting screw rod; two preset adjusting columns are in threaded connection with the outer wall of the first adjusting screw rod, arc-shaped clamping plates are arranged at the top ends of the sides, close to each other, of the two preset adjusting columns, preset connecting plates are fixedly connected to the front sides and the rear sides of the two arc-shaped clamping plates, and preset fixing plates are fixedly connected to the top ends of the front sides and the rear sides of the two preset adjusting columns. According to the adjusting mechanism, tool assistance is not needed, one-man operation can be completed, the position precision of the clamping plate after replacement is ensured, installation errors are prevented from influencing the machining quality, the rotating shaft is prevented from loosening in the machining process, the angle of the adjusting mechanism is still kept stable under the working condition of high-speed cutting or vibration, and the consistency and reliability of complex curved surface machining are improved.

Description

Technical Field

[0001] This utility model relates to the field of inner valve cover production and processing equipment, and in particular to a multi-angle adjustable positioning device for inner valve cover production and processing. Background Technology

[0002] In the valve manufacturing industry, the inner valve cover is a key component, and its machining accuracy directly affects the valve's sealing performance and service life. As industrial valves develop towards higher precision and more diverse specifications, the machining of inner valve covers needs to meet requirements such as multi-faceted cutting and rapid changeover. Traditional positioning devices, due to their low clamping efficiency, cumbersome angle adjustment, and time-consuming tooling changes, are no longer adequate to meet the dual demands of efficiency and precision in modern production. Therefore, developing a multifunctional device with adaptive clamping, rapid changeover, and precise angle positioning has become a core direction for improving the machining quality and production efficiency of inner valve covers.

[0003] Traditional clamping methods use bolt fastening or rigid fixtures, requiring manual adjustment of the clamping spacing one by one. This results in poor adaptability to different sizes of inner valve covers, and uneven force during clamping can easily cause workpiece deformation. For example, when machining small-diameter inner valve covers, rigid fixtures may damage the surface; when machining large-diameter workpieces, insufficient clamping force can easily cause cutting vibration, affecting machining accuracy. Angle adjustment relies on a manual turntable or indexing head, requiring manual adjustment and rough positioning via a dial after stopping the machine. Each adjustment is time-consuming, and the positioning accuracy is greatly affected by the operator's experience, making it difficult to meet the geometric tolerance requirements of multi-faceted machining. In addition, tooling changes require the removal of bolts using tools, and replacing a set of curved clamping plates is time-consuming, resulting in a high proportion of equipment downtime and seriously affecting production line efficiency.

[0004] In response to this technical problem, this application proposes a multi-angle adjustable positioning device for the production and processing of inner valve covers. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a multi-angle adjustable positioning device for the production and processing of inner valve covers. This replacement structure requires no tools and can be completed by a single person. Compared with the traditional bolt fixing method, it improves efficiency, ensures the positional accuracy of the clamping plate after replacement, avoids the impact of installation errors on processing quality, and the generated friction effectively prevents the rotating shaft from loosening during processing. This adjustment mechanism can still maintain angle stability under high-speed cutting or vibration conditions, improving the consistency and reliability of complex curved surface processing.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-angle adjustable positioning device for manufacturing and processing inner valve covers includes a preset operating plane. A processing clamping base is fixedly connected to the middle of the top side of the preset operating plane. A first adjusting screw rod is threadedly connected inside the processing clamping base. Two preset adjusting columns are threadedly connected to the outer wall of the first adjusting screw rod. An arc-shaped clamping plate is provided at the top of the two preset adjusting columns on their adjacent sides. Preset connecting plates are fixedly connected to the front and rear sides of the two arc-shaped clamping plates. Preset fixing plates are fixedly connected to the top of the front and rear sides of the two preset adjusting columns. The preset fixing plates are connected to the preset connecting plates through fixing components. An angle adjusting base is connected to the bottom side of the preset operating plane through a rotating component.

[0008] Furthermore, the fixing component includes two preset mounting brackets fixedly connected to the side of the two preset fixing plates respectively. Each of the two preset mounting brackets is fixedly connected to an adjusting sleeve. Each of the two adjusting sleeves is slidably connected to an adjusting control rod. Each of the two adjusting control rods is fixedly connected to a preset limiting block at the adjacent end.

[0009] Furthermore, each of the two preset mounting brackets is provided with a limit spring on an adjacent side, one end of which is connected to the adjusting sleeve and the other end of which is connected to the preset limit block.

[0010] Furthermore, the rotating assembly includes an adjusting rotating shaft fixedly connected to the middle of the bottom side of the preset operating plane, a limiting arc block slidably connected to the front end of the inside of the angle adjusting base, a second adjusting screw rod threadedly connected to the middle of the front side of the limiting arc block, and a second control knob fixedly connected to the front end of the second adjusting screw rod.

[0011] Furthermore, the outer wall of the second adjusting screw is rotatably connected to the front end of the angle adjusting base, the bottom end of the adjusting rotating shaft is rotatably connected to the inside of the angle adjusting base, and a damping plate is provided on the rear side of the limiting arc block.

[0012] Furthermore, each of the two arc-shaped clamps is fixedly connected to a preset positioning block on the opposite side, and each of the two preset adjusting columns is provided with a reserved positioning groove at the top of the adjacent side, and the outer walls of the two preset positioning blocks are slidably connected to the inner wall of the reserved positioning groove.

[0013] Furthermore, the bottom ends of the two preset adjustment columns are slidably connected to the left and right ends of the processing clamping base.

[0014] Furthermore, a first control knob is fixedly connected to the left end of the first adjusting screw rod.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, when replacing the arc-shaped clamping plate, the old clamping plate can be quickly disassembled by pulling the adjustment control rod to disengage the preset limit plug from the preset connecting plate; when installing the new clamping plate, the preset positioning block is inserted into the reserved positioning groove to achieve pre-positioning, and then the limit plug is inserted to complete the locking. This replacement structure does not require tool assistance and can be completed by a single person. Compared with the traditional bolt fixing method, it improves efficiency, ensures the positional accuracy of the clamping plate after replacement, and avoids the impact of installation errors on the processing quality.

[0017] 2. In this utility model, by adjusting the rotating shaft, the preset operating plane can be freely rotated at multiple angles within the angle adjustment base, meeting the multi-faceted processing requirements of the inner valve cover. Rotating the second control knob drives the limiting arc block to move inward, and its rear damping plate fits tightly against the outer wall of the rotating shaft. The resulting friction effectively prevents the rotating shaft from loosening during processing. This adjustment mechanism can maintain angle stability even under high-speed cutting or vibration conditions, improving the consistency and reliability of complex curved surface processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the multi-angle adjustable positioning device for the production and processing of the inner valve cover proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the connection mechanism of the multi-angle adjustable positioning device for the production and processing of the inner valve cover proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the angle adjustment mechanism of the multi-angle adjustable positioning device for the production and processing of the inner valve cover proposed in this utility model.

[0021] Legend:

[0022] 1. Preset operating plane; 2. Angle adjustment base; 3. Machining clamping base; 4. Preset adjustment column; 5. First adjustment screw rod; 6. First control knob; 7. Arc-shaped clamping plate; 8. Second control knob; 9. Preset fixing plate; 10. Preset mounting bracket; 11. Adjustment sleeve; 12. Limiting tension spring; 13. Preset limiting insert; 14. Adjustment control rod; 15. Reserved positioning groove; 16. Preset positioning block; 17. Preset connecting plate; 18. Adjustment rotation shaft; 19. Limiting arc-shaped block; 20. Second adjustment screw rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 This utility model provides an embodiment of a multi-angle adjustable positioning device for manufacturing and processing inner valve covers. It includes a preset operating plane 1, with a processing clamping base 3 fixedly connected to the top center of the preset operating plane 1. A first adjusting screw rod 5 is threadedly connected inside the processing clamping base 3. Two preset adjusting columns 4 are threadedly connected to the outer wall of the first adjusting screw rod 5. An arc-shaped clamping plate 7 is provided at the top of each adjacent side of the two preset adjusting columns 4. Preset connecting plates 17 are fixedly connected to the front and rear sides of each of the two arc-shaped clamping plates 7. Preset fixing plates 9 are fixedly connected to the top of each of the front and rear sides of the two preset adjusting columns 4. The preset fixing plates 9 are connected to the preset connecting plates 17 via preset limiting blocks 13. An angle adjusting base 2 is connected to the bottom side of the preset operating plane 1 via an adjusting rotation shaft 18. Preset positioning blocks 16 are fixedly connected to the opposite sides of the two arc-shaped clamping plates 7. Reserved positioning grooves 15 are provided at the top of each adjacent side of the two preset adjusting columns 4. The outer walls of the two preset positioning blocks 16 are slidably connected to the inner wall of the reserved positioning grooves 15. The bottom ends of the two preset adjustment columns 4 are slidably connected to the left and right ends of the machining clamping base 3. The left end of the first adjustment screw rod 5 is fixedly connected to the first control knob 6.

[0025] Specifically, the operator first rotates the first control knob 6, driving the connected first adjusting screw rod 5 to rotate. This uses threaded transmission to move the two preset adjusting columns 4 towards each other, clamping and fixing the inner valve cover via the arc-shaped clamping plate 7. This clamping mechanism converts rotational motion into linear motion through a threaded pair, automatically adjusting the clamping distance according to the inner valve cover's dimensions. Furthermore, the arc-shaped clamping plate 7's curved surface design fits tightly against the outer contour of the inner valve cover, avoiding surface damage to the workpiece caused by traditional rigid clamping. The clamping force can be precisely controlled by the number of knob rotations, ensuring stable fixing of inner valve covers made of different materials.

[0026] Reference Figure 2 Two preset mounting plates 9 are fixedly connected to two preset mounting brackets 10 on opposite sides. Each preset mounting bracket 10 has an adjusting sleeve 11 fixedly connected inside. Each adjusting sleeve 11 has an adjusting control rod 14 slidably connected inside. Each adjusting control rod 14 has a preset limiting block 13 fixedly connected to its closest end. Each preset mounting bracket 10 has a limiting spring 12 on its closest side, with one end connected to the adjusting sleeve 11 and the other end connected to the preset limiting block 13.

[0027] Specifically, to address the diverse specifications of the inner valve cover, the device adopts a modular arc-shaped clamping plate 7 design. During replacement, the operator simply pulls the adjusting control lever 14 to disengage the preset limit block 13 from the preset connecting plate 17, allowing for quick removal of the old clamping plate. When installing the new clamping plate, first insert the preset positioning block 16 of the arc-shaped clamping plate 7 into the reserved positioning slot 15 to achieve pre-positioning, then push the adjusting control lever 14 to lock the limit block 13 with the connecting plate 17. The entire replacement process requires no tools, is quick and convenient, and the guiding effect of the positioning block and positioning slot ensures minimal clamping plate installation error, avoiding dimensional deviations in machining caused by tooling positioning errors.

[0028] Reference Figure 3 An adjustable rotating shaft 18 is fixedly connected to the middle of the bottom side of the preset operating plane 1. A limiting arc block 19 is slidably connected to the front end of the angle adjusting base 2. A second adjusting screw rod 20 is threadedly connected to the middle of the front side of the limiting arc block 19. A second control knob 8 is fixedly connected to the front end of the second adjusting screw rod 20. The outer wall of the second adjusting screw rod 20 is rotatably connected to the front end of the angle adjusting base 2. The bottom end of the adjusting rotating shaft 18 is rotatably connected to the inside of the angle adjusting base 2. A damping plate is provided on the rear side of the limiting arc block 19.

[0029] Specifically, in multi-faceted machining scenarios, the operator can adjust the rotating shaft 18 to rotate the preset operating plane 1 within the angle adjustment base 2, achieving arbitrary angle positioning. When the target machining angle is reached, the second control knob 8 is turned, driving the limiting arc block 19 to move inward into the base via threaded transmission. Its rear damping plate is tightly fitted against the outer wall of the adjusting rotating shaft 18, and combined with the thread's self-locking characteristics, double protection prevents angle deviation caused by machining vibration. The device can maintain angle stability under various cutting conditions, meeting the multi-directional machining requirements of key parts such as the inner valve cover sealing surface and threaded holes, reducing workpiece secondary clamping errors, and completing continuous machining of multiple surfaces in a single clamping, significantly improving machining efficiency and geometric tolerance accuracy.

[0030] Working principle: When the operator uses this utility model to process the inner valve cover, he first rotates the first control knob 6 to drive the first adjusting screw rod 5 connected to it to rotate. Under the action of the threaded connection, the two preset adjusting columns 4 will move towards each other, thereby achieving the clamping and fixing of the inner valve cover by the arc-shaped clamping plate 7.

[0031] Since the inner valve cover has different sizes and specifications, a suitable arc-shaped clamping plate 7 needs to be selected when clamping it. When replacing the arc-shaped clamping plate 7, the operator can pull the adjustment control rod 14 to disengage it from the preset connecting plate 17, thereby removing the arc-shaped clamping plate 7. When installing an arc-shaped clamping plate 7 of the appropriate specifications, the operator first inserts the preset positioning block 16 on the arc-shaped clamping plate 7 into the reserved positioning groove 15 to achieve the pre-positioning of the arc-shaped clamping plate 7. Then, by repeating the above operation, the preset limit plug 13 is inserted into the preset connecting plate 17 again, completing the convenient installation and removal of the arc-shaped clamping plate 7.

[0032] When machining the inner valve cover, different surfaces need to be machined. During machining, the operator can adjust the rotating shaft 18 so that the preset operating plane 1 can rotate inside the angle adjustment base 2. When the preset operating plane 1 is rotated to the target position, the operator needs to turn the second control knob 8. Under the action of the threaded connection, the limiting arc block 19 is driven to move into the angle adjustment base 2 and the rear side of the limiting arc block 19 is tightly fitted with the outer wall of the adjusting rotating shaft 18. A damping plate is provided on the rear side of the limiting arc block 19 to effectively increase the friction and prevent the adjusting rotating shaft 18 from rotating during the machining process.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-angle adjustable positioning device for manufacturing and processing inner valve covers, comprising a preset operating plane (1), characterized in that: A processing clamping base (3) is fixedly connected to the middle of the top side of the preset operating plane (1). A first adjusting screw rod (5) is threaded inside the processing clamping base (3). Two preset adjusting columns (4) are threaded to the outer wall of the first adjusting screw rod (5). An arc-shaped clamping plate (7) is provided at the top of the two preset adjusting columns (4) on the side closest to each other. A preset connecting plate (17) is fixedly connected to the front and rear sides of the two arc-shaped clamping plates (7). A preset fixing plate (9) is fixedly connected to the top of the front and rear sides of the two preset adjusting columns (4). The preset fixing plate (9) is connected to the preset connecting plate (17) through a fixing component. An angle adjusting base (2) is connected to the bottom side of the preset operating plane (1) through a rotating component.

2. The multi-angle adjustable positioning device for manufacturing and processing inner valve covers according to claim 1, characterized in that: The fixing component includes two preset mounting brackets (10) fixedly connected to the side opposite to the two preset fixing plates (9). An adjusting sleeve (11) is fixedly connected inside each of the two preset mounting brackets (10). An adjusting control rod (14) is slidably connected inside each of the two adjusting sleeves (11). A preset limiting block (13) is fixedly connected to the near end of each of the two adjusting control rods (14).

3. The multi-angle adjustable positioning device for manufacturing and processing the inner valve cover according to claim 2, characterized in that: Both of the two preset mounting brackets (10) are provided with a limit spring (12) on the side of their proximity. One end of the limit spring (12) is connected to the adjusting sleeve (11), and the other end is connected to the preset limit plug (13).

4. The multi-angle adjustable positioning device for manufacturing and processing the inner valve cover according to claim 1, characterized in that: The rotating assembly includes an adjusting rotating shaft (18) fixedly connected to the middle of the bottom side of the preset operating plane (1), a limiting arc block (19) slidably connected to the front end of the angle adjusting base (2), a second adjusting screw rod (20) threadedly connected to the middle of the front side of the limiting arc block (19), and a second control knob (8) fixedly connected to the front end of the second adjusting screw rod (20).

5. The multi-angle adjustable positioning device for manufacturing and processing the inner valve cover according to claim 4, characterized in that: The outer wall of the second adjusting screw rod (20) is rotatably connected to the front end of the angle adjusting base (2), the bottom end of the adjusting rotating shaft (18) is rotatably connected to the inside of the angle adjusting base (2), and a damping plate is provided on the rear side of the limiting arc block (19).

6. The multi-angle adjustable positioning device for manufacturing and processing the inner valve cover according to claim 1, characterized in that: Each of the two arc-shaped clamps (7) is fixedly connected to a preset positioning block (16) on one side away from each other. Each of the two preset adjustment columns (4) is provided with a reserved positioning groove (15) at the top of one side close to each other. The outer walls of the two preset positioning blocks (16) are slidably connected to the inner wall of the reserved positioning groove (15).

7. The multi-angle adjustable positioning device for manufacturing and processing inner valve covers according to claim 1, characterized in that: The bottom ends of the two preset adjustment columns (4) are slidably connected to the left and right ends of the processing clamping base (3).

8. The multi-angle adjustable positioning device for manufacturing and processing inner valve covers according to claim 1, characterized in that: The first control knob (6) is fixedly connected to the left end of the first adjusting screw rod (5).

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