Rapid clamping mechanism for petroleum machining

Abstract

The utility model discloses a petroleum machining fast clamping mechanism which comprises a base, two sets of symmetrically-distributed installation frames are installed on the base in a sliding mode, installation bases are rotatably installed on the two sets of installation frames, installation rings are arranged in the installation bases and rotatably connected with the installation bases through bearings, and the installation rings are connected with the installation bases through bearings. A mounting ring is arranged on the mounting seat, a second gear ring sleeves the mounting ring, the mounting seat is provided with a plurality of groups of annularly distributed adjusting frames, the plurality of groups of adjusting frames are rotationally connected with the mounting seat through rotating rods, the plurality of groups of rotating rods are sleeved with third gears, and the plurality of groups of third gears are engaged with the second gear ring. Mounting blocks are fixedly mounted on the multiple sets of adjusting frames, synchronous adjustment of the angles of the multiple sets of adjusting frames is achieved through cooperation of the arranged mounting rings and the second gear ring and the third gear, the four sets of mounting blocks are evenly distributed on the outer wall of a workpiece, the clamping contact area of the clamping mechanism for the workpiece is effectively increased, and stability of the workpiece in the machining process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of petroleum machinery processing, specifically to a quick clamping mechanism for petroleum machinery processing. Background Technology

[0002] Petroleum machinery plays a crucial role in oil extraction and drilling. It mainly includes equipment such as drilling rigs and oil production machines, each with specific functions and roles. During processing, petroleum machinery requires clamping mechanisms to position the workpiece. Clamping is the process of ensuring the workpiece occupies a correct position on the machine tool or in a fixture before processing begins; this process is called positioning.

[0003] In existing technologies, for some cylindrical petroleum machinery workpieces, the clamping mechanism has a small fixing surface. After positioning, the workpiece is prone to slippage and displacement due to external forces during subsequent processing, which affects the normal processing progress. Furthermore, after the workpiece is initially fixed, the processing surface of the workpiece is not easy to adjust during processing. It is necessary to repeatedly disassemble the workpiece, adjust the positioning position, and then use the clamping mechanism to fix it again, which is inconvenient. Therefore, we propose a rapid clamping mechanism for petroleum machinery processing to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a quick clamping mechanism for petroleum machinery processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick clamping mechanism for petroleum machinery processing, comprising a base, two sets of symmetrically distributed mounting frames slidably mounted on the top of the base, a bidirectional lead screw rotatably mounted inside the base, mounting seats rotatably mounted on both sets of mounting frames, mounting rings provided inside the mounting seats, the mounting rings being rotatably connected to the mounting seats via bearings, a second toothed ring sleeved on the mounting rings, multiple sets of annularly distributed adjusting frames provided on the mounting seats, multiple sets of adjusting frames being rotatably connected to the mounting seats via rotating rods, a third gear sleeved on each of the multiple sets of rotating rods, multiple sets of third gears meshing with the second toothed rings, mounting blocks fixedly mounted on each of the multiple sets of adjusting frames, a first toothed ring sleeved on the mounting seats, a first gear provided inside the mounting frames, the first gear being rotatably connected to the mounting frames via mounting rods, and the first gear meshing with the first toothed ring.

[0006] As a further preferred embodiment of this technical solution, the two ends of the bidirectional lead screw pass through two sets of mounting brackets and are threadedly connected to the two sets of mounting brackets respectively. The mounting block is provided with a first clamping block, the first clamping block is provided with two sets of symmetrically distributed second clamping blocks, and each of the two sets of second clamping blocks is provided with two sets of symmetrically distributed third clamping blocks. Rubber sheets are fixedly adhered to all four sets of third clamping blocks.

[0007] As a further preferred embodiment of this technical solution, the mounting block, the first clamping block, and the second clamping block are all provided with sliding grooves, and the first clamping block, the second clamping block, and the third clamping block are all fixedly mounted with sliders. The sliders are arranged corresponding to the sliding grooves. The first clamping block is slidably connected to the mounting block through the sliders. Both sets of the second clamping blocks are slidably connected to the first clamping blocks through the sliders. Multiple sets of the third clamping blocks are slidably connected to the corresponding second clamping blocks through the sliders.

[0008] As a further preferred embodiment of this technical solution, the mounting rod is fitted with two sets of symmetrically distributed ratchet wheels, and the mounting frame is provided with two sets of symmetrically distributed pawls. The two sets of pawls are respectively engaged with the corresponding ratchet wheels, and the two sets of pawls are rotatably connected to the mounting frame through the mounting shaft. The mounting frame is slidably installed with two sets of symmetrically distributed racks.

[0009] As a further preferred embodiment of this technical solution, a first torsion spring is sleeved on each of the two sets of mounting shafts, and the two ends of the first torsion spring are fixedly connected to the pawl and the mounting bracket, respectively.

[0010] As a further preferred embodiment of this technical solution, a second gear is sleeved on each of the two sets of mounting shafts, and the two sets of racks are respectively meshed with the corresponding second gear. The two sets of racks are fixedly connected by a movable frame, and an insert block is fixedly installed on the movable frame.

[0011] As a further preferred embodiment of this technical solution, a fixing rod corresponding to the insert block is fixedly installed inside the mounting bracket. Two sets of symmetrically distributed fixing frames are rotatably sleeved on the fixing rod. Two sets of symmetrically distributed second torsion springs are sleeved on the fixing rod. The two ends of the second torsion springs are fixedly connected to the corresponding fixing frames and fixing rods, respectively. The two sets of fixing frames can be movably engaged with the insert block.

[0012] This utility model provides a quick clamping mechanism for petroleum machinery processing, which has the following beneficial effects:

[0013] This invention utilizes a mounting ring in conjunction with a second gear ring and a third gear to achieve synchronous adjustment of the angles of multiple sets of adjusting brackets. This, combined with the first, second, and third clamping blocks on the mounting block, secures the center of cylindrical or shaft-shaped petroleum machinery workpieces on the mounting base. The four sets of mounting blocks are evenly distributed on the outer wall of the workpiece, effectively increasing the clamping contact area and ensuring stability during workpiece processing. Furthermore, the synchronous adjustment of the angles of the four adjusting rods and the adjustment of the distance between the two sets of mounting brackets under the action of the bidirectional lead screw can be adjusted according to the actual size of the workpiece, effectively expanding the applicability of the clamping mechanism. The convenient and quick adjustment of the distance between the four adjusting rods also allows the clamping mechanism to quickly clamp workpieces of various sizes.

[0014] This invention utilizes the interaction between the first gear ring and the first gear to allow the mounting base to rotate the clamped workpiece on the mounting frame, adjusting its machining surface. During workpiece processing, workers do not need to repeatedly disassemble the workpiece to adjust the machining surface and then re-clamp it, facilitating workpiece processing. Furthermore, the ratchet and pawl can limit and fix the mounting rod and the first gear, preventing the mounting base from sliding during workpiece processing and affecting the accuracy of workpiece processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural separation of the base and mounting bracket of this utility model;

[0017] Figure 3 This is a schematic diagram showing the structural separation of the mounting bracket and mounting base of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure of A in the middle.

[0019] Figure 5 This is a schematic diagram showing the structural separation of the mounting base and the adjustment frame of this utility model;

[0020] Figure 6 This is a schematic diagram showing the structural separation of the mounting block and the first clamping block of this utility model;

[0021] In the diagram: 1. Base; 2. Mounting bracket; 3. Two-way lead screw; 4. Mounting seat; 5. First gear ring; 6. First gear; 7. Mounting rod; 8. Ratchet; 9. Pawl; 10. Mounting shaft; 11. First torsion spring; 12. Second gear; 13. Rack; 14. Moving frame; 15. Insert block; 16. Fixing rod; 17. Fixing bracket; 18. Second torsion spring; 19. Mounting ring; 20. Second gear ring; 21. Adjusting frame; 22. Rotating rod; 23. Third gear; 24. Mounting block; 25. First clamping block; 26. Second clamping block; 27. Third clamping block; 28. Rubber sheet; 29. ​​Slide groove; 30. Slider. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown in this embodiment, a quick clamping mechanism for petroleum machinery processing includes a base 1. Two sets of symmetrically distributed mounting brackets 2 are slidably mounted on the base 1. A bidirectional lead screw 3 is rotatably mounted inside the base 1. Mounting seats 4 are rotatably mounted on both sets of mounting brackets 2. Mounting seats 4 are provided with mounting rings 19. The mounting rings 19 are rotatably connected to the mounting seats 4 through bearings. A second toothed ring 20 is sleeved on the mounting rings 19. The mounting seats 4 are provided with multiple sets of annularly distributed adjusting brackets 21. The multiple sets of adjusting brackets 21 are rotatably connected to the mounting seats 4 through rotating rods 22. A third gear 23 is sleeved on the multiple sets of rotating rods 22. The multiple sets of third gears 23 are meshed with the second toothed rings 20. Each of the adjusting frames 21 is fixedly equipped with a mounting block 24. A first gear ring 5 is sleeved on the mounting base 4. A first gear 6 is provided inside the mounting frame 2. The first gear 6 is rotatably connected to the mounting frame 2 through a mounting rod 7. The first gear 6 is meshed with the first gear ring 5. According to the actual length of the clamped workpiece, the motor in the base 1 is started to drive the bidirectional lead screw 3 to rotate. The distance between the two sets of mounting frames 2 is adjusted so that the workpiece passes through the two sets of mounting bases 4. The motor on the mounting base 4 is started to drive the rotating rod 22 to rotate. The rotating rod 22 drives the third gear 23 to rotate synchronously. In conjunction with the second gear ring 20 and multiple sets of third gears 23, the synchronous rotation of multiple sets of adjusting frames 21 is achieved. During the rotation of multiple sets of adjusting frames 21, the other The mounting block 24 at one end, along with the first clamping block 25, the second clamping block 26, and the third clamping block 27 on the mounting block 24, rotates inward synchronously and gradually retracts towards the workpiece position. The two ends of the bidirectional lead screw 3 pass through two sets of mounting brackets 2 and are threadedly connected to them respectively. The mounting block 24 is provided with a first clamping block 25, and the first clamping block 25 is provided with two sets of symmetrically distributed second clamping blocks 26. Each of the two sets of second clamping blocks 26 is provided with two sets of symmetrically distributed third clamping blocks 27. Rubber sheets 28 are fixedly bonded to all four sets of third clamping blocks 27. The mounting block 24, the first clamping block 25, and the second clamping blocks 26 are all provided with sliding grooves 29. The first clamping block 25, the second clamping block 26, and the third clamping blocks 27... Each block 27 is fixedly equipped with a slider 30, which is correspondingly arranged with the slide groove 29. The first clamping block 25 is slidably connected to the mounting block 24 through the slider 30. Both sets of second clamping blocks 26 are slidably connected to the first clamping block 25 through the slider 30. Multiple sets of third clamping blocks 27 are slidably connected to the corresponding second clamping blocks 26 through the slider 30. During the retraction process of the adjusting frame 21, the third clamping blocks 27, second clamping blocks 26 and first clamping blocks 25 that are in contact with the outer wall of the workpiece rotate respectively until all four sets of third clamping blocks 27 are in contact with the outer wall of the workpiece, thus completing the firm fixation of the workpiece at the center position of the mounting seat 4, avoiding the displacement caused by the workpiece not being firmly fixed during the processing, which would affect the accuracy and quality of petroleum machinery processing.

[0024] like Figure 3 and Figure 4As shown, two sets of symmetrically distributed ratchet wheels 8 are sleeved on the mounting rod 7. Two sets of symmetrically distributed pawls 9 are provided inside the mounting frame 2. The two sets of pawls 9 are respectively engaged with the corresponding ratchet wheels 8. Both sets of pawls 9 are rotatably connected to the mounting frame 2 via mounting shafts 10. Two sets of symmetrically distributed racks 13 are slidably installed inside the mounting frame 2. A first torsion spring 11 is sleeved on each of the two sets of mounting shafts 10. The two ends of the first torsion spring 11 are fixedly connected to the pawls 9 and the mounting frame 2, respectively. A second gear 12 is connected to the rack 13, and the two sets of racks 13 are respectively meshed with the corresponding second gear 12. The two sets of racks 13 are fixedly connected by a movable frame 14. A plug 15 is fixedly installed on the movable frame 14. A fixed rod 16 corresponding to the plug 15 is fixedly installed in the mounting frame 2. Two sets of symmetrically distributed fixed frames 17 are rotatably sleeved on the fixed rod 16. Two sets of symmetrically distributed second torsion springs 18 are sleeved on the fixed rod 16. The two ends of the second torsion springs 18 are respectively connected to the corresponding fixed frame 17. The fixing rod 16 is fixedly connected, and the two sets of fixing frames 17 can be movably engaged with the insert block 15. When it is necessary to adjust the processing angle of the workpiece fixed on the mounting base 4, the moving frame 14 is pulled and the insert block 15 is slid until the insert block 15 is inserted between the two sets of fixing frames 17. The spring force of the second torsion spring 18 fixes the insert block 15, the moving frame 14 and the two sets of racks 13. The second gear 12 drives the mounting shaft 10 to rotate, thereby realizing the deflection of the pawl 9 and releasing the restriction on the ratchet 8. At this time, the mounting rod 7 and the first gear 6 Both can rotate freely. The rotating mounting rod 7 and the first gear 6, in conjunction with the first gear ring 5, drive the mounting base 4, thereby adjusting the machining surface of the workpiece fixed on the mounting base 4. After adjusting the workpiece to another machining surface, the reverse pull of the moving frame 14 causes the insert block 15 to disengage from the two sets of fixed frames 17. Under the action of the first torsion spring 11, the mounting shaft 10 and the pawl 9 return to their original position relative to the corresponding ratchet 8. At this time, the mounting rod 7 and the first gear 6 are both limited and cannot rotate, and the position of the mounting base 4 in the mounting frame 2 is fixed.

[0025] This utility model provides a quick clamping mechanism for petroleum machinery processing. The specific working principle is as follows: Based on the actual length of the workpiece to be clamped, the motor in the base 1 drives the bidirectional lead screw 3 to rotate, adjusting the distance between the two sets of mounting frames 2. The workpiece passes through the two sets of mounting seats 4, and the motor on the mounting seat 4 drives the rotating rod 22 to rotate. The rotating rod 22 drives the third gear 23 to rotate synchronously. This, in conjunction with the second gear ring 20 and multiple sets of third gears 23, achieves synchronous rotation of multiple sets of adjusting frames 21. During the rotation of the multiple sets of adjusting frames 21, the mounting block 24 at the other end, as well as the first clamping block 25, second clamping block 26, and third clamping block 27 on the mounting block 24, rotate synchronously inward and gradually converge towards the workpiece position. During the convergence of the adjusting frames 21, the third clamping block 27, second clamping block 26, and first clamping block 25, which are in contact with the outer wall of the workpiece, rotate respectively until all four sets of third clamping blocks 27 are in contact with the outer wall of the workpiece, thus firmly fixing the workpiece at the center position of the mounting seat 4. This prevents the workpiece from shifting due to insecure fixing during processing, which could affect the petroleum machinery. To improve machining accuracy and quality, when adjusting the machining angle of a workpiece fixed on the mounting base 4, the movable frame 14 is pulled, causing the insert block 15 to slide until it is inserted between the two sets of fixed frames 17. The second torsion spring 18 then fixes the insert block 15, the movable frame 14, and the two sets of racks 13. The second gear 12 drives the mounting shaft 10 to rotate, thereby causing the pawl 9 to deviate and releasing the restriction on the ratchet 8. At this time, the mounting rod 7 and the first gear 6 can rotate freely. Rotating the mounting rod 7 and the first gear 6, in conjunction with the first gear ring 5, drives the mounting base 4, thereby adjusting the machining surface of the workpiece fixed on the mounting base 4. After adjusting the workpiece to another machining surface, the movable frame 14 is pulled in the opposite direction, causing the insert block 15 to disengage from the two sets of fixed frames 17. Under the action of the first torsion spring 11, the mounting shaft 10 and the pawl 9 return to their original position relative to the corresponding ratchet 8. At this time, the mounting rod 7 and the first gear 6 are both restricted and cannot rotate, and the position of the mounting base 4 in the mounting frame 2 is fixed.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick clamping mechanism for petroleum machining, characterized in that: Includes a base (1), on which two sets of symmetrically distributed mounting brackets (2) are slidably mounted. A bidirectional lead screw (3) is rotatably mounted inside the base (1). Mounting seats (4) are rotatably mounted on both sets of mounting brackets (2). A mounting ring (19) is provided inside the mounting seat (4). The mounting ring (19) is rotatably connected to the mounting seat (4) through a bearing. A second toothed ring (20) is sleeved on the mounting ring (19). The mounting seat (4) is provided with multiple sets of annularly distributed adjusting brackets (21). All sets of adjusting brackets (21) are connected to the mounting seat (4) through a bearing. The rotating rod (22) is rotatably connected to the mounting base (4). Each of the rotating rods (22) is fitted with a third gear (23). Each of the third gears (23) is meshed with a second gear ring (20). Each of the adjusting frames (21) is fixedly mounted with a mounting block (24). The mounting base (4) is fitted with a first gear ring (5). The mounting frame (2) is provided with a first gear (6). The first gear (6) is rotatably connected to the mounting frame (2) through the mounting rod (7). The first gear (6) is meshed with the first gear ring (5).

2. The quick clamping mechanism for petroleum machinery processing according to claim 1, characterized in that: The two ends of the bidirectional lead screw (3) pass through two sets of mounting brackets (2) respectively and are threaded to the two sets of mounting brackets (2). The mounting block (24) is provided with a first clamping block (25). The first clamping block (25) is provided with two sets of symmetrically distributed second clamping blocks (26). Each of the two sets of second clamping blocks (26) is provided with two sets of symmetrically distributed third clamping blocks (27). Each of the four sets of third clamping blocks (27) is fixedly bonded with a rubber sheet (28).

3. The quick clamping mechanism for petroleum machining according to claim 2, characterized in that: The mounting block (24), the first clamping block (25), and the second clamping block (26) are all provided with sliding grooves (29). The first clamping block (25), the second clamping block (26), and the third clamping block (27) are all fixedly mounted with sliders (30). The sliders (30) are correspondingly arranged with the sliding grooves (29). The first clamping block (25) is slidably connected to the mounting block (24) through the sliders (30). The two sets of second clamping blocks (26) are slidably connected to the first clamping block (25) through the sliders (30). The multiple sets of third clamping blocks (27) are slidably connected to the corresponding second clamping blocks (26) through the sliders (30).

4. The quick clamping mechanism for petroleum machining according to claim 1, characterized in that: Two sets of symmetrically distributed ratchet wheels (8) are sleeved on the mounting rod (7). Two sets of symmetrically distributed pawls (9) are provided in the mounting frame (2). The two sets of pawls (9) are respectively engaged with the corresponding ratchet wheels (8). The two sets of pawls (9) are rotatably connected to the mounting frame (2) through the mounting shaft (10). Two sets of symmetrically distributed racks (13) are slidably installed in the mounting frame (2).

5. The quick clamping mechanism for petroleum machining according to claim 4, characterized in that: Both sets of mounting shafts (10) are fitted with a first torsion spring (11), and the two ends of the first torsion spring (11) are fixedly connected to the pawl (9) and the mounting bracket (2) respectively.

6. The quick clamping mechanism for petroleum machining according to claim 4, characterized in that: A second gear (12) is sleeved on each of the two sets of mounting shafts (10), and the two sets of racks (13) are respectively meshed with the corresponding second gear (12). The two sets of racks (13) are fixedly connected by a movable frame (14), and a plug (15) is fixedly installed on the movable frame (14).

7. The quick clamping mechanism for petroleum machining according to claim 1, characterized in that: The mounting bracket (2) is fixedly installed with a fixing rod (16) corresponding to the insert block (15). Two sets of symmetrically distributed fixing frames (17) are rotatably sleeved on the fixing rod (16). Two sets of symmetrically distributed second torsion springs (18) are sleeved on the fixing rod (16). The two ends of the second torsion springs (18) are fixedly connected to the corresponding fixing frames (17) and fixing rods (16) respectively. The two sets of fixing frames (17) can be movably engaged with the insert block (15).

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