Burr grinding equipment for cold-drawn precise seamless steel pipe
By adopting grinding plate and trapezoidal grinding block structures with clamping and elastic adaptability design in cold-drawn precision seamless steel pipe burr grinding equipment, the problem of steel pipe burr grinding offset is solved, and uniform grinding and quality improvement of the steel pipe surface is achieved.
Patent Information
- Application Number
- CN202421593939.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-07-08
AI Technical Summary
During the cold drawing process, the burrs generated on the steel pipe surface are easily deviated during the grinding process, resulting in the grinding trajectory that cannot be completely covered, and the missing burrs affect the quality and performance of the steel pipe.
A cold-drawn precision seamless steel pipe burr grinding equipment is designed, using two grinding plates to clamp the inner and outer walls of the seamless steel pipe, and cooperate with trapezoidal grinding blocks and spring structure to ensure that the grinding plate and trapezoidal grinding blocks rotate simultaneously, and pass the elasticity of the spring. Support and adaptive design, able to adapt to burrs of different heights, avoid offsets and biases, and ensure uniform grinding.
The uniform grinding of steel pipe burrs is achieved, avoiding deviation and bias, ensuring the flatness and quality of the steel pipe surface, and improving the performance.
Smart Images
Figure CN222269683U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal processing, in particular to a burr grinding device for cold-drawn precision seamless steel pipes. Background Art
[0002] During the cold drawing process, defects such as burrs and scratches will appear on the surface of the steel pipe. These defects not only affect the appearance quality of the steel pipe, but may also reduce its performance and safety. Burr grinding equipment can effectively remove these defects, making the surface of the steel pipe smoother and flatter, and improving its overall quality.
[0003] When grinding the burrs on one end of a steel pipe, the burrs near the edge of the port are prone to shift during the grinding process, which makes it impossible for the grinding track to completely cover these burrs, resulting in the omission of burrs. These missed burrs may affect the overall quality of the steel pipe and its performance in subsequent use. Utility Model Content
[0004] The utility model aims to provide a burr grinding device for cold-drawn precision seamless steel pipes to solve the problems raised in the above-mentioned background technology.
[0005] In order to solve the above technical problems, the utility model provides a burr grinding device for cold-drawn precision seamless steel pipes, comprising a seamless steel pipe, wherein the outer wall of the seamless steel pipe and the inner wall of the seamless steel pipe are both in contact with grinding plates, a trapezoidal grinding block is arranged between the two grinding plates, the outer wall of the trapezoidal grinding block is abutted against one end of the seamless steel pipe, and a trapezoidal block is installed at the bottom of one of the grinding plates.
[0006] Furthermore, an insert plate is installed on the outer wall of the trapezoidal grinding block, a circular support plate is arranged on one side of the two grinding plates, a baffle is installed on the side of the insert plate extending to the outside of the circular support plate, and multiple springs are connected between the outer wall of the baffle plate and the outer wall of the circular support plate.
[0007] Furthermore, the circular support plate is provided with a through slot, and the plug plate is located inside the through slot and plugged into the through slot.
[0008] Furthermore, two insertion rods are installed on the outer wall of the trapezoidal grinding block, and two rotating rods are installed on the outer walls of the two grinding plates. A connecting plate is rotatably connected between the rotating rods and the insertion rods.
[0009] Furthermore, a servo motor is provided on one side of the seamless steel pipe, a driving end of the servo motor is connected to a rotating shaft, a fixing rod is installed on the outer wall of the rotating shaft, and a top end of the fixing rod is connected to the outer wall of the circular support plate.
[0010] Furthermore, a plurality of guide rods are installed on the outer wall of the baffle, the guide rods are located inside the spring and plugged into the circular support plate, and a pull ring is installed on the outer wall of the baffle.
[0011] Furthermore, a bottom plate is arranged below the seamless steel pipe, a fixing frame is installed on the top of the bottom plate, and the servo motor is installed on the inner wall of the fixing frame.
[0012] Furthermore, the bottom plate is provided with two slide grooves, a bracket is slidably connected in the slide groove, a connecting rod is installed on the outer wall of the bracket, the outer wall of the connecting rod is abutted against the outer wall of the seamless steel pipe, and a ball is rotatably connected to the bottom end of the bracket, and the ball is slidably connected to the slide groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. In the utility model, two grinding plates are used to clamp the inner and outer walls of the seamless steel pipe at the same time, and the trapezoidal grinding block is used to grind the outer wall of the steel pipe port, so that the grinding plate and the trapezoidal grinding block can rotate synchronously along one end of the steel pipe to ensure that the burrs are evenly ground, avoid deviation and bias, and ensure the grinding effect of the seamless steel pipe.
[0015] 2. In the utility model, the trapezoidal grinding block is elastically supported on the outer wall of the seamless steel pipe by a spring, so that it can be adaptively adjusted according to the height of the burr on the steel pipe. When the burr is high, the trapezoidal grinding block will move inward, by stretching the spring and pushing the baffle, while expanding the distance between the two grinding plates to adapt to burrs of different heights. This design ensures that the grinding plate can fit closely to the surface of the steel pipe, and the burr can be polished clean by the grinding plate regardless of whether it is offset. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure between the insert plate and the baffle in the utility model;
[0018] Figure 3 This is a schematic diagram of the connection structure between the bracket and the ball in the utility model;
[0019] Figure 4 for Figure 1 A magnified view of the structure at center.
[0020] In the figure: 1. Seamless steel pipe;
[0021] 2. Bottom plate; 3. Servo motor; 4. Fixed frame; 5. Rotating shaft; 6. Bracket; 7. Connecting rod; 8. Slide groove; 9. Grinding plate; 10. Trapezoidal grinding block; 11. Rotating rod; 12. Connecting plate; 13. Inserting rod; 14. Trapezoidal block; 15. Inserting plate; 16. Baffle; 17. Ball bearing; 18. Fixed rod; 19. Spring; 20. Guide rod; 21. Pull ring; 22. Circular support plate; 23. Through groove. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:
[0024] See also Figure 1-Figure 4 As shown, a burr grinding device for cold-drawn precision seamless steel pipe includes a seamless steel pipe 1, the outer wall of the seamless steel pipe 1 and the inner wall of the seamless steel pipe 1 are both in contact with grinding plates 9, a trapezoidal grinding block 10 is arranged between the two grinding plates 9, the outer wall of the trapezoidal grinding block 10 is abutted against one end of the seamless steel pipe 1, and a trapezoidal block 14 is fixedly installed on the bottom of one of the grinding plates 9.
[0025] The two grinding plates 9 clamp the inner and outer walls of the seamless steel pipe 1 at the same time, and then the trapezoidal grinding block 10 contacts the outer wall of the end of the seamless steel pipe 1, driving the trapezoidal grinding block 10 and the two grinding plates 9 to rotate along one end of the seamless steel pipe 1;
[0026] The outer wall and the port of the seamless steel pipe 1 are polished simultaneously by the polishing plate 9 and the trapezoidal polishing block 10. This method can prevent the burrs at the port of the seamless steel pipe 1 from being offset and causing incomplete polishing of the burrs, and also prevent the burrs on the outer wall of the seamless steel pipe 1 near the port from being biased toward the port of the seamless steel pipe 1.
[0027] When the trapezoidal grinding block 10 moves toward one end of the seamless steel pipe 1, the trapezoidal block 14 is resisted when the trapezoidal grinding block 10 moves toward the trapezoidal block 14, which will drive the upper grinding plate 9 to move upward, thereby achieving the effect of expanding the distance between the two grinding plates 9, so that it can adapt to the seamless steel pipe 1 with different burr heights.
[0028] See also Figure 2 and Figure 4A plug plate 15 is fixedly installed on the outer wall of the trapezoidal grinding block 10, a circular support plate 22 is arranged on one side of the two grinding plates 9, a baffle 16 is fixedly installed on one side of the plug plate 15 extending to the outside of the circular support plate 22, and a plurality of springs 19 are fixedly connected between the outer wall of the baffle 16 and the outer wall of the circular support plate 22.
[0029] The baffle 16 is fixed on the circular support plate 22 by a plurality of springs 19, so that the trapezoidal grinding block 10 is supported on one side of the circular support plate 22, and the spring 19 makes the trapezoidal grinding block 10 and the outer wall of the seamless steel pipe 1 tightly against the seamless steel pipe 1;
[0030] When the height of the burr on the seamless steel pipe 1 is relatively high, the trapezoidal grinding block 10 will move toward the circular support plate 22, thereby expanding the distance between the two grinding plates 9 so that the grinding plate 9 can adapt to the height of the burr. When the trapezoidal grinding block 10 moves toward the circular support plate 22, it will push the baffle 16 through the insert plate 15, and then the baffle 16 will stretch the spring 19. The spring 19 enables the trapezoidal grinding block 10 to always push in the direction of the seamless steel pipe 1, so that the two grinding plates 9 are closer together and resist the burrs, so that the grinding plate 9 is more closely fitted to the burrs on the outer wall of the seamless steel pipe 1. If the burrs at the end of the seamless steel pipe 1 are offset, these burrs can be polished clean by the grinding plate 9.
[0031] See also Figure 4 The circular support plate 22 is provided with a through slot 23 , and the inserting plate 15 is located inside the through slot 23 and plugged into the through slot 23 .
[0032] The through slot 23 provides a space for the inserting plate 15 to move. When the baffle plate 16 is pulled, the inserting plate 15 and the trapezoidal grinding block 10 can be directly pulled to move along the through slot 23 .
[0033] See also Figure 2 Two insertion rods 13 are fixedly installed on the outer wall of the trapezoidal grinding block 10, and two rotating rods 11 are fixedly installed on the outer walls of the two grinding plates 9. A connecting plate 12 is rotatably connected between the rotating rod 11 and the insertion rod 13.
[0034] When the trapezoidal grinding block 10 moves toward the trapezoidal block 14, the two connecting plates 12 will swing with the insertion rod 13 as the center point. When the connecting plates 12 swing, the rotating rod 11 and the grinding plate 9 will be pushed toward the periphery of the trapezoidal grinding block 10, thereby separating the two grinding plates 9 from each other.
[0035] See also Figure 1 A servo motor 3 is provided on one side of the seamless steel pipe 1 , a driving end of the servo motor 3 is connected to a rotating shaft 5 , a fixing rod 18 is fixedly installed on the outer wall of the rotating shaft 5 , and the top end of the fixing rod 18 is fixedly connected to the outer wall of the circular support plate 22 .
[0036] The rotating shaft 5 is driven to rotate by the servo motor 3, and the rotating shaft 5 is located at the center point of the end of the seamless steel pipe 1. Therefore, the rotating shaft 5 drives the fixed rod 18 and the circular support plate 22 to rotate, and then the circular support plate 22 drives the trapezoidal grinding block 10 and the two grinding plates 9 to rotate along one end of the seamless steel pipe 1, so that the grinding plate 9 and the trapezoidal grinding block 10 can grind the seamless steel pipe 1.
[0037] See also Figure 4 A plurality of guide rods 20 are fixedly mounted on the outer wall of the baffle 16 . The guide rods 20 are located inside the spring 19 and plugged into the circular support plate 22 . A pull ring 21 is fixedly mounted on the outer wall of the baffle 16 .
[0038] When the trapezoidal grinding block 10 pushes the insert plate 15 and the baffle plate 16 to move, the baffle plate 16 will drive the guide rod 20 to slide along the inside of the circular support plate 22. The guide rod 20 allows the baffle plate 16 to move horizontally, making the baffle plate 16, the insert plate 15 and the trapezoidal grinding block 10 more stable when moving. The baffle plate 16 can be pulled to move by pulling the pull ring 21, which makes it convenient to pull the insert plate 15 and the trapezoidal grinding block 10 through the baffle plate 16, so that the trapezoidal grinding block 10 can be flexibly moved.
[0039] See also Figure 1 A bottom plate 2 is arranged below the seamless steel pipe 1 , a fixing frame 4 is fixedly installed on the top of the bottom plate 2 , and a servo motor 3 is fixedly installed on the inner wall of the fixing frame 4 .
[0040] The bottom plate 2 supports and fixes the fixing frame 4, so that the fixing frame 4 can fix the servo motor 3, thereby making the servo motor 3 more stable during operation.
[0041] See also Figure 1 and Figure 3 The bottom plate 2 is provided with two slide grooves 8, in which a bracket 6 is slidably connected, and a connecting rod 7 is fixedly installed on the outer wall of the bracket 6. The seamless steel pipe 1 is placed between the two connecting rods 7, and the outer wall of the connecting rod 7 is against the outer wall of the seamless steel pipe 1. The bottom end of the bracket 6 is rotatably connected with a ball 17, and the ball 17 is slidably connected to the slide groove 8.
[0042] Two connecting rods 7 support the seamless steel pipe 1, and the bracket 6 fixes the connecting rod 7, pushing the seamless steel pipe 1 to be polished onto the base plate 2, so as to facilitate the polishing of burrs on the seamless steel pipe 1. The bracket 6 slides into the slide groove 8 through the ball bearing 17, and the slide groove 8 enables the seamless steel pipe 1 to be placed horizontally on the base plate 2, so that one end of the seamless steel pipe 1 can correspond to the polishing plate 9 and the trapezoidal polishing block 10.
[0043] Working principle:
[0044] The two grinding plates 9 clamp the inner and outer walls of the seamless steel pipe 1 at the same time, and then the trapezoidal grinding block 10 contacts the outer wall of the end of the seamless steel pipe 1, and the servo motor 3 drives the rotating shaft 5 to rotate. The rotating shaft 5 is located at the center point of the end of the seamless steel pipe 1, so the rotating shaft 5 drives the fixing rod 18 and the circular supporting plate 22 to rotate, and then the circular supporting plate 22 drives the trapezoidal grinding block 10 and the two grinding plates 9 to rotate along one end of the seamless steel pipe 1;
[0045] The outer wall and the port of the seamless steel pipe 1 are polished simultaneously by the polishing plate 9 and the trapezoidal polishing block 10. This method can prevent the burrs at the port of the seamless steel pipe 1 from being offset and causing incomplete polishing of the burrs, and also prevent the burrs on the outer wall of the seamless steel pipe 1 near the port from being biased toward the port of the seamless steel pipe 1.
[0046] When the trapezoidal grinding block 10 moves toward one end of the seamless steel pipe 1, the trapezoidal block 14 is resisted when the trapezoidal grinding block 10 moves toward the trapezoidal block 14, which will drive the upper grinding plate 9 to move upward, thereby achieving the effect of expanding the distance between the two grinding plates 9, so that it can adapt to the seamless steel pipe 1 with different burr heights.
[0047] The baffle 16 is fixed on the circular support plate 22 by a plurality of springs 19, so that the trapezoidal grinding block 10 is supported on one side of the circular support plate 22, and the spring 19 makes the trapezoidal grinding block 10 and the outer wall of the seamless steel pipe 1 tightly against the seamless steel pipe 1;
[0048] When the height of the burr on the seamless steel pipe 1 is relatively high, the trapezoidal grinding block 10 will move toward the circular support plate 22, thereby expanding the distance between the two grinding plates 9 so that the grinding plate 9 can adapt to the height of the burr. When the trapezoidal grinding block 10 moves toward the circular support plate 22, it will push the baffle 16 through the insert plate 15, and then the baffle 16 will stretch the spring 19. The spring 19 enables the trapezoidal grinding block 10 to always push in the direction of the seamless steel pipe 1, so that the two grinding plates 9 are closer together and resist the burrs, so that the grinding plate 9 is more closely fitted to the burrs on the outer wall of the seamless steel pipe 1. If the burrs at the end of the seamless steel pipe 1 are offset, these burrs can be polished clean by the grinding plate 9.
Claims
1. A burr grinding device for cold-drawn precision seamless steel pipe, comprising a seamless steel pipe (1), characterized in that: The outer wall of the seamless steel pipe (1) and the inner wall of the seamless steel pipe (1) are both in contact with a grinding plate (9), a trapezoidal grinding block (10) is arranged between the two grinding plates (9), the outer wall of the trapezoidal grinding block (10) is in contact with one end of the seamless steel pipe (1), and a trapezoidal block (14) is installed at the bottom of one of the grinding plates (9).
2. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 1, characterized in that: An insert plate (15) is installed on the outer wall of the trapezoidal grinding block (10), a circular support plate (22) is arranged on one side of the two grinding plates (9), a baffle plate (16) is installed on the side of the insert plate (15) extending outside the circular support plate (22), and a plurality of springs (19) are connected between the outer wall of the baffle plate (16) and the outer wall of the circular support plate (22).
3. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 2, characterized in that: The circular support plate (22) is provided with a through slot (23), and the plug plate (15) is located inside the through slot (23) and plugged into the through slot (23).
4. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 1, characterized in that: Two insertion rods (13) are installed on the outer wall of the trapezoidal grinding block (10), and two rotating rods (11) are installed on the outer walls of the two grinding plates (9). A connecting plate (12) is rotatably connected between the rotating rods (11) and the insertion rods (13).
5. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 1, characterized in that: A servo motor (3) is provided on one side of the seamless steel pipe (1), a driving end of the servo motor (3) is connected to a rotating shaft (5), a fixing rod (18) is installed on the outer wall of the rotating shaft (5), and the top end of the fixing rod (18) is connected to the outer wall of the circular support plate (22).
6. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 2, characterized in that: A plurality of guide rods (20) are installed on the outer wall of the baffle (16). The guide rods (20) are located inside the spring (19) and plugged into the circular support plate (22). A pull ring (21) is installed on the outer wall of the baffle (16).
7. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 5, characterized in that: A bottom plate (2) is arranged below the seamless steel pipe (1), a fixing frame (4) is installed on the top of the bottom plate (2), and the servo motor (3) is installed on the inner wall of the fixing frame (4).
8. The burr grinding equipment for cold drawn precision seamless steel pipe according to claim 7, characterized in that: The bottom plate (2) is provided with two slide grooves (8), a bracket (6) is slidably connected in the slide groove (8), a connecting rod (7) is installed on the outer wall of the bracket (6), the outer wall of the connecting rod (7) is against the outer wall of the seamless steel pipe (1), and a ball (17) is rotatably connected to the bottom end of the bracket (6), and the ball (17) is slidably connected to the slide groove (8).