High-precision seamless steel tube surface polishing and grinding equipment

Abstract

The utility model discloses high-precision seamless steel tube surface polishing and grinding equipment. According to the technical scheme, the polishing and grinding device comprises a rack, a supporting base, a moving base, a lifting mechanism and a polishing and grinding wheel, the supporting base, the moving base, the lifting mechanism and the polishing and grinding wheel are arranged on the rack, a supporting frame is arranged on the supporting base, a lifting frame is connected to the supporting frame in a sliding mode, a rotatable supporting wheel is arranged in the lifting frame, and a supporting spring is arranged between the lifting frame and the supporting frame. One ends of the supporting springs abut against the lifting frame, the other ends of the supporting springs abut against the supporting frames, the multiple supporting frames are arranged in two rows and are arranged at intervals, driving wheels are arranged on the supporting base, the driving wheels and the supporting wheels are staggered, and pressing mechanisms are arranged at the two ends of the supporting base and used for pressing the two ends of the seamless steel pipe. The position of the seamless steel pipe can be stable in the polishing process, the seamless steel pipe is not affected by particles and impurities, excessive polishing is avoided, the defective rate is reduced, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of seamless steel pipe production and processing equipment, and more particularly to high-precision seamless steel pipe surface polishing and grinding equipment. Background Art

[0002] After being pierced, the solid seamless steel pipe becomes a hollow capillary tube. Particles and impurities will adhere to the surface of the capillary tube, and it needs to be cleaned before cold drawing. The existing processing method uses manual grinding with a grinding wheel or equipment for grinding. Manual grinding with a grinding wheel has low grinding efficiency and a large amount of labor; equipment grinding places the steel pipe on a support seat, and then drives the seamless steel pipe to rotate. At the same time, the grinder moves along the axial direction of the seamless steel pipe to grind the particles and impurities flat. However, when the position of the particles and impurities collides with the support wheel, the seamless steel pipe at that position will bend and offset, causing the grinding position to be over-grinded, reducing the quality of the finished product. The current solution is to manually adjust the position before processing, which also has the problem of low efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the utility model is to provide a high-efficiency and high-precision seamless steel pipe surface polishing and grinding equipment.

[0004] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0005] As a further improvement of the present invention, the moving seat and the frame are connected by precision slide rails and slide grooves, the frame is provided with a moving motor and a moving screw, the moving seat is provided with a driven hole, the moving screw is threadedly connected to the driven hole, and the moving motor is connected to the moving screw.

[0006] As a further improvement of the present invention, the lifting mechanism includes:

[0007] A lifting motor is fixedly connected to the motion seat;

[0008] A lifting screw rod is rotatably arranged on a moving seat, and the lifting screw rod is connected to a lifting motor;

[0009] A lifting seat is slidably connected to the moving seat through a precision slide rail and a chute. A lifting hole is provided on the lifting seat, and the lifting hole is threadedly connected to the lifting screw rod. The polishing and grinding wheel is arranged on the lifting seat.

[0010] As a further improvement of the present utility model, a plurality of receiving grooves are provided on the side of the support wheel.

[0011] As a further improvement of the present utility model, reinforcing ribs are provided in the receiving grooves.

[0012] As a further improvement of the present utility model, the pressing mechanism includes:

[0013] A pressing cylinder is fixedly arranged on the support seat and is located below the support frame;

[0014] A pressing plate is slidably arranged on the support seat and is connected to the pressing cylinder;

[0015] A pressing rod is rotatably arranged on the support seat, and one end of the pressing rod abuts against the pressing plate;

[0016] An extending rod is arranged at the other end of the pressing rod;

[0017] A pressing wheel is rotatably arranged on the extending rod.

[0018] The beneficial effects of the present utility model are that during the grinding process, the seamless steel pipe is in a stable position, not affected by particles and impurities, avoiding excessive grinding, reducing the defective rate, and improving production efficiency. Description of the Drawings

[0019] Figure 1 is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the support frame, the lifting frame, and the support wheel;

[0021] Figure 3 is the cross-sectional structural schematic diagram of the support wheel, the seamless steel pipe, the pressing wheel, and the polishing and grinding wheel;

[0022] Figure 4 is the cross-sectional structural schematic diagram of the support wheel;

[0023] Figure 5 is the structural schematic diagram of the pressing mechanism.

[0024] Marking description: 1. Frame; 2. Support base; 21. Support frame; 22. Lifting frame; 23. Support wheel; 231. Accommodating groove; 232. Reinforcing rib; 24. Support spring; 3. Moving seat; 30. Driven hole; 31. Moving motor; 32. Moving screw; 4. Lifting mechanism; 41. Lifting motor; 42. Lifting screw; 43. Lifting seat; 44. Lifting hole; 5. Polishing and grinding wheel; 6. Pressing mechanism; 61. Pressing cylinder; 62. Pressing plate; 63. Pressing rod; 64. Inserting rod; 65. Pressing wheel. Specific implementation mode

[0025] The following will further describe the present utility model in detail with reference to the embodiments given in the drawings.

[0026] Refer to Figure 1 — Figure 5 As shown, the high-precision seamless steel pipe surface polishing and grinding equipment of this embodiment includes a frame 1 and a support base 2 and a moving seat 3 arranged on the frame 1. The moving seat 3 is located above the support base 2. An elevator mechanism 4 is provided on the moving seat 3. A polishing and grinding wheel 5 is provided on the elevator mechanism 4. A support frame 21 is provided on the support base 2. The support frame 21 is concave. A lifting frame 22 is slidably connected to the support frame 21. A rotatable support wheel 23 is provided in the lifting frame 22. The axis of the support wheel 23 is parallel to the axis of the seamless steel pipe. A support spring 24 is provided between the lifting frame 22 and the support frame 21. One end of the support spring 24 abuts against the lifting frame 22, and the other end abuts against the support frame 21. There are several support frames 21, arranged in two columns and spaced apart from each other. A driving wheel is provided on the support base 2. The driving wheel is offset from the support wheel 23. Pressing mechanisms 6 are provided at both ends of the support base 2. The pressing mechanisms 6 are used to press both ends of the seamless steel pipe.

[0027] Through the above technical solution, when using this equipment to polish and grind particles and impurities attached to the surface of seamless steel pipes, first place the seamless steel pipe on the support seat 2, between the two rows of support wheels 23, and tangent to the two rows of support wheels 23. The clamping mechanism 6 moves to press the seamless steel pipe against the support wheels 23, and then start the equipment for polishing and grinding. The driving wheel rotates to drive the seamless steel pipe to rotate, the lifting mechanism 4 runs to drive the polishing and grinding wheel 5 to descend, and the moving seat 3 moves to move the polishing and grinding wheel 5 from one end of the seamless steel pipe to the other end to complete the polishing and grinding of the outer side of the seamless steel pipe. When particles and impurities attached to the surface of the seamless steel pipe collide with the support wheel 23, they squeeze the support wheel 23 in that position, which in turn acts on the lifting frame 22, causing the lifting frame 22 to descend and compressing the support spring 24. When the particles and impurities separate from the support wheel 23, the support spring 24 resets, thereby driving the lifting frame 22 to reset, so that the support wheel 23 always fits the surface of the seamless steel pipe. The seamless steel pipe remains stable during rotation and is not affected by particles and impurities. This allows the polishing wheel 5 to stably polish particles and impurities on the surface of the seamless steel pipe, avoiding over-polishing. Furthermore, there is no position requirement for the placement of seamless steel pipes, which improves production efficiency.

[0028] Specifically, the moving seat 3 moves from one end to the other end to complete the grinding of a seamless steel pipe, and returns to the initial position from the other end to complete the grinding of the rear seamless steel pipe, thereby reducing energy consumption and improving efficiency.

[0029] Specifically, both ends of the polishing wheel 5 are provided with inclined guide surfaces to prevent particles and impurities from getting stuck in the polishing wheel 5 during operation, thereby improving stability during use.

[0030] As an improved specific embodiment, the moving seat 3 and the frame 1 are connected by precision slide rails and slide grooves. The frame 1 is provided with a moving motor 31 and a moving screw 32. The moving seat 3 is provided with a driven hole 30. The moving screw 32 is threadedly connected to the driven hole 30. The moving motor 31 is connected to the moving screw 32.

[0031] Through the above technical solution, the reciprocating motion process of the moving seat 3 is as follows: the motion motor 31 drives the motion screw 32 to rotate, and the motion screw 32 rotates through the driven hole 30 to drive the moving seat 3 to reciprocate. The structure is simple, the stability is high, and the control is precise.

[0032] As an improved specific implementation, the lifting mechanism 4 includes:

[0033] The lifting motor 41 is fixedly connected to the moving base 3;

[0034] A lifting screw 42 is rotatably disposed on the motion base 3 , and the lifting screw 42 is connected to the lifting motor 41 ;

[0035] The lifting seat 43 is slidably connected to the moving seat 3 through precision slide rails and slide grooves. The lifting seat 43 is provided with a lifting hole 44 , and the lifting hole 44 is threadedly connected to the lifting screw 42 . The polishing wheel 5 is set on the lifting seat 43 .

[0036] Through the above technical solution, the lifting mechanism 4 drives the polishing and grinding wheel 5 to lift and lower in the following process: the lifting motor 41 drives the lifting screw 42 to rotate, thereby driving the lifting seat 43 to lift and lower on the moving seat 3. The structure is simple, the stability is high, and the control accuracy is high.

[0037] As an improved specific implementation, a plurality of accommodating grooves 231 are provided on the side of the supporting wheel 23 .

[0038] Through the above technical solution, the receiving groove 231 is used to accommodate particles and impurities attached to the side of the seamless steel pipe, so that most of the particles and impurities enter the receiving groove 231 during the rotation of the seamless steel pipe, and cooperate with the support spring 24 to further improve the stability of the position of the seamless steel pipe during the polishing and grinding process, thereby avoiding excessive grinding and reducing the defective rate.

[0039] As an improved specific implementation, a reinforcing rib 232 is provided in the receiving groove 231 .

[0040] Through the above technical solution, the reinforcing ribs 232 improve the rigidity of the support wheel 23, avoid deformation after being squeezed, and improve stability during use.

[0041] As an improved specific implementation, the pressing mechanism 6 includes:

[0042] The pressing cylinder 61 is fixedly mounted on the support base 2 and is located below the support frame 21;

[0043] The pressing plate 62 is slidably disposed on the support base 2 and connected to the pressing cylinder 61;

[0044] A pressing rod 63 is rotatably disposed on the support base 2 , and one end of the pressing rod 63 contacts the pressing plate 62 ;

[0045] An extending rod 64 is provided at the other end of the pressing rod 63;

[0046] The pressing wheel 65 is rotatably arranged on the extending rod 64 .

[0047] Through the above technical solution, the clamping mechanism 6 is in operation. When the seamless steel pipe is clamped, the clamping cylinder 61 is in operation, driving the clamping plate 62 to move toward the end of the seamless steel pipe, thereby pushing the clamping rod 63 to rotate. The rotation of the clamping rod 63 drives the insertion rod 64 to rotate, and the insertion rod 64 enters the seamless steel pipe. The clamping wheel 65 contacts the lower side of the inner wall of the seamless steel pipe to clamp the seamless steel pipe.

[0048] When the pressing is released, the pressing cylinder 61 resets, and then drives the pressing plate 62 to reset. At this time, the pressing rod 63, the extending rod 64, and the pressing wheel 65 rotate under the action of gravity, so that the pressing wheel 65 and the extending rod 64 leave the seamless steel pipe, and the polished and ground seamless steel pipe can be easily removed. It should be noted that during the reset process of the pressing plate 62, the pressing rod 63 always abuts against the pressing plate 62.

[0049] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. High-precision seamless steel pipe surface polishing and grinding equipment, including a machine frame (1), a support base (2) and a moving base (3) arranged on the machine frame (1), the moving base (3) is located above the support base (2), a lifting mechanism (4) is arranged on the moving base (3), and a polishing and grinding wheel (5) is arranged on the lifting mechanism (4), characterized in that: The support seat (2) is provided with a support frame (21), the support frame (21) is concave, and a lifting frame (22) is slidably connected to the support frame (21). A rotatable support wheel (23) is provided in the lifting frame (22), and the axis of the rotating shaft of the support wheel (23) is parallel to the axis of the seamless steel pipe. A support spring (24) is provided between the lifting frame (22) and the support frame (21), one end of the support spring (24) is in contact with the lifting frame (22), and the other end is in contact with the support frame (21). The support frame (21) has a plurality of support frames, which have two rows and are spaced apart from each other. A driving wheel is provided on the support seat (2), and the driving wheel is staggered with the support wheel (23). A clamping mechanism (6) is provided at both ends of the support seat (2), and the clamping mechanism (6) is used to clamp the two ends of the seamless steel pipe.

2. The high-precision seamless steel pipe surface polishing and grinding equipment according to claim 1 is characterized in that: The motion seat (3) and the frame (1) are connected via precision slide rails and slide grooves; a motion motor (31) and a motion screw (32) are provided on the frame (1); a driven hole (30) is provided on the motion seat (3); the motion screw (32) is threadedly connected to the driven hole (30); and the motion motor (31) and the motion screw (32) are connected.

3. The high-precision seamless steel pipe surface polishing and grinding equipment according to claim 1 or 2, characterized in that: The lifting mechanism (4) comprises: A lifting motor (41) is fixedly connected to the moving seat (3); A lifting screw (42) is rotatably arranged on the moving seat (3), and the lifting screw (42) is connected to the lifting motor (41); The lifting seat (43) is slidably connected to the moving seat (3) through a precision slide rail and a slide groove. The lifting seat (43) is provided with a lifting hole (44), and the lifting hole (44) is threadedly connected to the lifting screw (42). The polishing wheel (5) is arranged on the lifting seat (43).

4. The surface polishing and grinding equipment for high-precision seamless steel pipes according to claim 1 or 2, characterized in that: A plurality of accommodating grooves (231) are provided on the side of the supporting wheel (23).

5. The high-precision seamless steel pipe surface polishing and grinding equipment according to claim 4 is characterized in that: A reinforcing rib (232) is provided in the receiving groove (231).

6. The high-precision seamless steel pipe surface polishing and grinding equipment according to claim 1 or 2, characterized in that: The pressing mechanism (6) comprises: A pressing cylinder (61) is fixedly mounted on the support base (2) and is located below the support frame (21); A pressing plate (62) is slidably arranged on the support seat (2) and connected to the pressing cylinder (61); A pressing rod (63) is rotatably arranged on the support seat (2), and one end of the pressing rod (63) contacts the pressing plate (62); An extending rod (64) is provided at the other end of the pressing rod (63); The pressing wheel (65) is rotatably arranged on the insertion rod (64).

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