Steel pipe outer circle sharpening machine

Abstract

The invention relates to the technical field of steel pipe grinding, in particular to a steel pipe outer circle grinding machine which comprises a working cavity, the interior of the working cavity is divided into a feeding cavity, a first storage cavity and a second storage cavity, and a first guide plate is obliquely arranged at the bottom end of the first storage cavity; a feeding opening communicating with the interior of the feeding cavity is formed in the side wall of one side of the first storage cavity in a penetrating mode, a driving roller and a supporting roller are rotationally installed above the feeding cavity, a rotary driving piece is arranged at one end of the driving roller, and the supporting roller is horizontally and movably arranged on one side of the driving roller through an elastic supporting mechanism; a supporting frame is fixed to the top end of the working cavity, a grinding mechanism is movably arranged at the bottom end of the supporting frame through a linear driving mechanism, and a feeding plate is vertically and movably arranged in the feeding cavity through a lifting part and used for vertically conveying steel pipes at the top end of the feeding plate to the top ends of a driving roller and a supporting roller. And feeding can be automatically carried out, the polished steel pipes can be automatically discharged, the automation degree is high, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe grinding, in particular to a steel pipe outer cylindrical grinding machine. Background Art

[0002] As customers have higher and higher requirements for the quality of steel pipes, the process of solving the oxide scale and defect problems on the outer surface of steel pipes has become more and more important. Traditionally, when grinding steel pipes, a driving roller for driving the steel pipe to rotate, a guide wheel for the horizontal movement of the steel pipe and a grinding wheel for grinding are generally set. The positions of the three are generally relatively fixed. During work, the steel pipe to be ground needs to be manually inserted between the three, and the steel pipe is manually removed after the grinding is completed. The technical performance is low and the degree of automation is low. Summary of the invention

[0003] The object of the present invention is to provide a steel pipe external cylindrical grinding machine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel pipe external cylindrical grinding machine, comprising a working chamber, and the interior of the working chamber is divided into a feeding chamber, a first storage chamber and a second storage chamber by a partition, the feeding chamber is located between the first storage chamber and the second storage chamber, and a first guide plate is obliquely arranged at the bottom end of the first storage chamber, a feeding port connected to the interior of the feeding chamber is penetrated on the side wall of one side of the first storage chamber, a driving roller and a supporting roller are rotatably installed above the feeding chamber, a rotating driving member is arranged at one end of the driving roller, and the supporting roller is rotated by An elastic support mechanism is horizontally movably arranged on one side of the driving roller, and the elastic support mechanism is used to push the supporting roller to move toward the side close to the driving roller. A support frame is fixed to the top of the working chamber, and a grinding mechanism is movably arranged on the side of the bottom end of the support frame close to the first storage chamber through a linear drive mechanism. The linear drive mechanism is used to drive the grinding mechanism to slide back and forth horizontally along the axial direction of the driving roller. A feeding plate is movably arranged inside the feeding chamber through a lifting member, which is used to vertically transport the steel pipe rolled to the top of the feeding plate to the top of the driving roller and the supporting roller.

[0005] Furthermore, the grinding mechanism includes a bracket, a first grinding wheel and a second grinding wheel coaxially mounted on both sides of the bracket, and a driving mechanism for driving the first grinding wheel and the second grinding wheel to rotate, and a slider connected to the linear driving mechanism is installed on the bracket.

[0006] Furthermore, a connecting plate is installed at the top of the bracket, and the connecting plate and the slider are connected by a linear driving member, and the linear driving member is used to push the bracket and the slider to move up and down relative to each other.

[0007] Furthermore, the feeding plate includes a top plate horizontally arranged inside the feeding cavity and a baffle plate vertically fixed on the top plate near the side of the feed port. A through hole is provided at the bottom end of the feeding cavity to accommodate the baffle plate and extend to the outside of the feeding cavity. The baffle plate is used to seal the feed port.

[0008] Furthermore, both ends of the support roller are connected to a movable block via a rotating shaft, and the movable block is horizontally slidably connected to the working chamber. The elastic support mechanism includes a first fixed plate fixed on the working chamber and a first elastic support member arranged between the movable block and the first fixed plate. The first elastic support member is used to push the movable block to move horizontally toward the side close to the driving roller.

[0009] Furthermore, a positioning mechanism for locking the movable block is provided on one side of the working chamber close to the movable block, and the positioning mechanism includes a second fixed plate fixed on the working chamber, a positioning rod slidably arranged on the second fixed plate, a limit plate fixed to the top end of the positioning rod, and a second elastic support member that pushes the positioning rod to move downward, the positioning rod is located above the movable block, and a positioning hole matching the positioning rod is provided at the top end of the movable block, mounting plates are provided at both ends of the feeding plate, and the mounting plates extend to the bottom of the limit plate, a push rod is vertically fixed on the top end of the mounting plate, and the push rod is used to push the limit plate up when the feeding plate rises to feed, so that the bottom end of the positioning rod is separated from the movable block.

[0010] Furthermore, a second material guide plate is obliquely installed at the top of the second material storage cavity, and one end of the second material guide plate close to the support roller is higher than the other side, and a gap is reserved between the lowest end of the second material guide plate and the side wall of the second material storage cavity to accommodate the steel pipe passing through.

[0011] Furthermore, a movable baffle is movably provided on one side of the second material storage chamber.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the steel pipe external cylindrical grinding machine can automatically load and unload the ground steel pipes by arranging a feeding plate, a lifting member, a support roller and an elastic support mechanism, with a high degree of automation and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the side three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the feeding plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the feeding plate in the feeding state of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the grinding mechanism of the present invention.

[0014] In the figure: 1, working chamber; 101, feeding chamber; 102, first storage chamber; 1021, first guide plate; 1022, feed port; 103, second storage chamber; 1031, second guide plate; 2, support frame; 3, linear drive mechanism; 4, grinding mechanism; 401, bracket; 402, first grinding wheel; 403, second grinding wheel; 404, drive mechanism; 405, slider; 406, connecting plate; 407, linear drive member; 5, drive roller; 6 , rotating drive member; 7, supporting roller; 701, movable block; 8, elastic supporting mechanism; 801, first fixed plate; 802, first elastic supporting member; 803, guide rod; 9, feeding plate; 901, baffle plate; 902, top plate; 903, mounting plate; 904, top rod; 10, lifting member; 11, positioning mechanism; 1101, second fixed plate; 1102, positioning rod; 1103, second elastic supporting member; 1104, limit plate; 12, movable baffle. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In order to make the terms "including" and any variations of them in the specification and claims of the present invention and the above-mentioned drawings, it is intended to cover non-exclusive inclusions.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] See also Figure 1-7 An embodiment of the present invention is as follows: a steel pipe external cylindrical grinding machine comprises a working chamber 1, and the interior of the working chamber 1 is divided into a feeding chamber 101, a first storage chamber 102 and a second storage chamber 103 by a partition. The working chamber 1 is a rectangular parallelepiped structure with an opening at the top. The feeding chamber 101 is located between the first storage chamber 102 and the second storage chamber 103. The first storage chamber 102 is used to store steel pipes to be ground, and the second storage chamber 103 is used to store steel pipes that have been ground. The feeding chamber 101 is used to transport the steel pipes to be ground upward one by one.

[0018] A first material guide plate 1021 is obliquely arranged at the bottom end of the first material storage chamber 102, and a feed port 1022 communicating with the interior of the feeding chamber 101 is penetrated through the side wall of one side of the first material storage chamber 102, and a driving roller 5 and a supporting roller 7 are rotatably installed above the feeding chamber 101. The driving roller 5 and the supporting roller 7 are parallel to each other, and a rotating driving member 6 is arranged at one end of the driving roller 5. The rotating driving member 6 can be specifically a motor, which is installed on the outside of the working chamber 1. When the steel pipe to be ground is placed on the top, the steel pipe can be driven to rotate for all-round grinding.

[0019] The support roller 7 is horizontally movable and arranged on one side of the driving roller 5 through an elastic support mechanism 8, and the elastic support mechanism 8 is used to push the support roller 7 to move toward the side close to the driving roller 5. Both ends of the support roller 7 are connected with movable blocks 701 through a rotating shaft, and the movable block 701 is horizontally slidably connected with the working chamber 1. Specifically, the movable block 701 is slidably arranged outside the working chamber 1, and a strip-shaped through hole for accommodating the horizontal sliding of the rotating shaft is penetrated on the side wall of the working chamber 1. Figure 5The elastic support mechanism 8 includes a first fixed plate 801 fixed on the outer wall of the working chamber 1 and a first elastic support member 802 arranged between the movable block 701 and the first fixed plate 801. The first elastic support member 802 is used to push the movable block 701 to move horizontally toward the side close to the driving roller 5. The first elastic support member 802 can be specifically a spring, which is arranged between the first fixed plate 801 and the movable block 701. Further, a guide rod 803 is horizontally fixed on the side of the first fixed plate 801 close to the movable block 701. A through hole matching the guide rod 803 is penetrated on the movable block 701. The guide rod 803 passes through the inside of the first elastic support member 802 and is slidably connected to the movable block 701. During the grinding operation, under the elastic support of the first elastic support member 802, the support roller 7 is pushed close to the driving roller 5 to provide support for the steel pipe to be ground.

[0020] The side of the working chamber 1 close to the movable block 701 is provided with a positioning mechanism 11 for locking the movable block 701, see Figure 5 The positioning mechanism 11 includes a second fixed plate 1101 fixed on the outer wall of the working chamber 1, a positioning rod 1102 slidably arranged on the second fixed plate 1101, a limit plate 1104 fixed on the top of the positioning rod 1102 and a second elastic support member 1103 that pushes the positioning rod 1102 to move downward. The positioning rod 1102 is located above the movable block 701, and a positioning hole matching the positioning rod 1102 is provided at the top of the movable block 701. A baffle is fixed below the outer peripheral wall of the positioning rod 1102. The second elastic support member 1103 is specifically a spring, which is sleeved on the outside of the positioning rod 1102. When assembled, the top of the spring abuts against the second fixed plate 1101, and the bottom end abuts against the baffle on the positioning rod 1102. Both ends of the feeding plate 9 are provided with A mounting plate 903 is provided, and a strip-shaped through hole is provided on the side wall of the working chamber 1 to accommodate the up and down movement of the mounting plate 903. The mounting plate 903 extends through the strip-shaped through hole to the outside of the working chamber 1, and the mounting plate 903 is located below the limit plate 1104. A push rod 904 is vertically fixed to the top of the mounting plate 903. The push rod 904 is used to push the limit plate 1104 upward when the feeding plate 9 rises to feed materials, so that the bottom end of the positioning rod 1102 is separated from the movable block 701. When the steel pipe is ground, the positioning rod 1102 is inserted into the positioning hole at the top of the movable block 701 to fix the support roller 7 and improve the stability of the support roller 7. When feeding is required, the feeding plate 9 drives the push rod 904 to move upward to lift the positioning rod 1102 in advance, so as to facilitate the horizontal movement of the movable block 701.

[0021] A support frame 2 is fixed to the top of the working chamber 1. In this embodiment, the support frame 2 is an inverted U-shaped structure. Furthermore, in order to reduce environmental pollution, an openable and closable protective cover can also be provided at the top of the working chamber 1, and a grinding mechanism 4 is movably provided on one side of the bottom end of the support frame 2 close to the first storage chamber 102 through a linear drive mechanism 3. The linear drive mechanism 3 is used to drive the grinding mechanism 4 to slide back and forth along an axial direction parallel to the driving roller 5. In this embodiment, the grinding mechanism 4 is arranged above the driving roller 5. During grinding, the grinding mechanism 4 is tilted and arranged obliquely above the steel pipe. The driving roller 5 is arranged above the first storage chamber 102, so that the steel pipe that has been ground later can be rolled into the second storage chamber 103. See Figure 7 The grinding mechanism 4 includes a bracket 401, a first grinding wheel 402 and a second grinding wheel 403 coaxially mounted on both sides of the bracket 401, and a driving mechanism 404 driving the first grinding wheel 402 and the second grinding wheel 403 to rotate. A slider 405 connected to the linear driving mechanism 3 is installed on the bracket 401. In this embodiment, the slider 405 is movably mounted on the top of the bracket 401. The first grinding wheel 402 can be a flap wheel, and the second grinding wheel 403 can be a resin thickened grinding wheel. The driving mechanism 404 can be a pulley structure, including a slider fixed on the first grinding wheel The driven wheels on the rotating shafts of 402 and the second grinding wheel 403, the driving wheel installed above the driven wheel, the motor that drives the driving wheel to rotate, and the belt connecting the driving wheel and the driven wheel drive the first grinding wheel 402 and the second grinding wheel 403 to rotate synchronously, thereby realizing the double grinding of the steel pipe. The linear drive mechanism 3 can be specifically a screw rod installed horizontally at the bottom end of the support frame 2 and a motor that drives the screw rod to rotate. The slider 405 is threadedly connected to the screw rod. The rotation of the screw rod can drive the slider 405 to be horizontally movable. Furthermore, the linear drive mechanism 3 can also be set as a linear drive component such as an electric telescopic rod and a cylinder as needed.

[0022] An inverted U-shaped connecting plate 406 is installed at the top of the bracket 401. The connecting plate 406 and the slider 405 are connected by a linear drive member 407, and the linear drive member 407 is used to push the bracket 401 and the slider 405 to move up and down relative to each other. The linear drive member 407 can be specifically a cylinder, which is vertically fixed to the top of the slider 405, and the output end is fixedly connected to the connecting plate 406. The bracket 401 is driven to move up and down by the extension and retraction of the linear drive member 407, and the upper and lower positions of the first grinding wheel 402 and the second grinding wheel 403 can be adjusted to make them close to the surface of the steel pipe.

[0023] A feeding plate 9 is provided inside the feeding chamber 101 for vertical movement through a lifting member 10, which is used to vertically transport the steel pipe rolled to the top of the feeding plate 9 to the top of the driving roller 5 and the supporting roller 7. The lifting member 10 can be any one of a cylinder, an electric telescopic rod, etc., which is vertically installed at the bottom of the working chamber 1, and the output end extends to the inside of the feeding chamber 101 and is fixedly connected to the feeding plate 9, see Figure 4 The feeding plate 9 includes a top plate 902 horizontally arranged inside the feeding chamber 101 and a baffle plate 901 vertically fixed on the top plate 902 near the side of the feed port 1022. The bottom end of the feeding chamber 101 is penetrated by a through hole for accommodating the baffle plate 901 and extending to the outside of the feeding chamber 101. The baffle plate 901 is used to block the feed port 1022. When the top plate 902 moves to the lowest end of the feeding chamber 101, the steel pipe inside the first storage chamber 102 passes through the feed port 1022 and rolls to the top of the top plate 902. When the lifting member 10 drives the feeding plate 9 to rise, the baffle plate 901 abuts against one side of the feed port 1022 for blocking.

[0024] A second material guide plate 1031 is obliquely installed at the top of the second material storage chamber 103, and one end of the second material guide plate 1031 close to the support roller 7 is higher than the other side. A gap is reserved between the lowest end of the second material guide plate 1031 and the side wall of the second material storage chamber 103 for accommodating the steel pipe to pass through. The ground steel pipe first falls to the top of the second material guide plate 1031, and then falls to the bottom of the second material storage chamber 103, which can play a buffering role.

[0025] Furthermore, a movable baffle 12 is movably provided on one side of the second material storage chamber 103. The two sides of the bottom end of the movable baffle 12 are hinged to the two sides of the bottom end of the working chamber 1. The movable baffle 12 can be fixedly connected to the working chamber 1 by a snap buckle (not shown in the figure). During normal operation, the movable baffle 12 is closed. When the steel pipe needs to be taken out, the movable baffle 12 is flipped to a horizontal state to act as a material guide plate and overlapped on the top of the material receiving frame to facilitate the removal of the repaired steel pipe.

[0026] Working principle: During operation, the steel pipe to be repaired is first placed inside the first material storage chamber 102. The steel pipe rolls downward along the first material guide plate 1021 and passes through the feed port 1022 one by one to enter the feeding chamber 101. The lifting member 10 drives the feeding plate 9 to move upward until the steel pipe moves to the bottom of the driving roller 5 and the supporting roller 7. At this time, the top rod 904 is in pre-contact with the limit plate 1104, pushing the limit plate 1104 to move upward, driving the positioning rod 1102 to move upward and separate from the movable block 701. The second elastic support member 1103 is in a compressed state and continues to be transported upward, pushing the supporting roller 7 to move away from the driving roller 5. At this time, the movable block 701 compresses the first elastic support member 802. When the steel pipe moves to the driving roller 5 After reaching the top of the support roller 7, the feeding plate 9 moves down and resets, and the support roller 7 is also reset under the elastic support of the first elastic support member 802. When the top rod 904 is separated from the limit plate 1104, the second elastic support member 1103 pushes the positioning rod 1102 to reset downward and is inserted into the top positioning hole of the movable block 701 to lock the movable block 701. The rotating drive member 6 drives the driving roller 5 to rotate, and then drives the steel pipe to rotate. The linear drive mechanism 3 drives the grinding mechanism 4 to move horizontally along the length direction of the steel pipe to grind the outer circle. After the grinding is completed, the feeding plate 9 moves up to continue feeding, and before the steel pipe is delivered to the top of the driving roller 5 and the support roller 7, the ground steel pipe is pushed to roll into the second storage chamber 103 to realize automatic unloading.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Steel pipe external cylindrical grinding machine, characterized by: The invention comprises a working chamber (1), wherein the interior of the working chamber (1) is divided into a feeding chamber (101), a first material storage chamber (102) and a second material storage chamber (103) by a partition, wherein the feeding chamber (101) is located between the first material storage chamber (102) and the second material storage chamber (103), and a first material guide plate (1021) is obliquely arranged at the bottom end of the first material storage chamber (102), and a feeding port (1022) communicating with the interior of the feeding chamber (101) is penetrated and arranged on a side wall of one side of the first material storage chamber (102), and a driving roller (5) and a supporting roller (7) are rotatably installed above the feeding chamber (101), and a rotating driving member (6) is arranged at one end of the driving roller (5), and the supporting roller (7) is supported by an elastic support mechanism. The support mechanism (8) is horizontally movably arranged on one side of the driving roller (5), and the elastic support mechanism (8) is used to push the support roller (7) to move toward the side close to the driving roller (5). A support frame (2) is fixed at the top of the working chamber (1), and a grinding mechanism (4) is movably arranged on the side of the bottom end of the support frame (2) close to the first storage chamber (102) through a linear drive mechanism (3). The linear drive mechanism (3) is used to drive the grinding mechanism (4) to slide back and forth horizontally along the axial direction of the driving roller (5). A feeding plate (9) is movably arranged in the feeding chamber (101) through a lifting member (10) to vertically transport the steel pipe rolled to the top of the feeding plate (9) to the top of the driving roller (5) and the support roller (7).

2. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: The grinding mechanism (4) comprises a bracket (401), a first grinding wheel (402) and a second grinding wheel (403) coaxially mounted on both sides of the bracket (401), and a driving mechanism (404) for driving the first grinding wheel (402) and the second grinding wheel (403) to rotate. A sliding block (405) connected to the linear driving mechanism (3) is mounted on the bracket (401).

3. The steel pipe external cylindrical grinding machine according to claim 2, characterized in that: A connecting plate (406) is installed at the top end of the support (401), and the connecting plate (406) and the slider (405) are connected via a linear drive member (407), and the linear drive member (407) is used to push the support (401) and the slider (405) to move up and down relative to each other.

4. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: The feeding plate (9) comprises a top plate (902) horizontally arranged inside the feeding cavity (101) and a baffle plate (901) vertically fixed to a side of the top plate (902) close to the feeding port (1022); a through hole is provided at the bottom end of the feeding cavity (101) for accommodating the baffle plate (901) and extending to the outside of the feeding cavity (101); the baffle plate (901) is used to block the feeding port (1022).

5. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: Both ends of the support roller (7) are connected to a movable block (701) via a rotating shaft, and the movable block (701) is horizontally slidably connected to the working chamber (1). The elastic support mechanism (8) comprises a first fixed plate (801) fixed on the working chamber (1) and a first elastic support member (802) arranged between the movable block (701) and the first fixed plate (801), wherein the first elastic support member (802) is used to push the movable block (701) to move horizontally toward a side close to the driving roller (5).

6. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: A positioning mechanism (11) for locking the movable block (701) is provided on one side of the working chamber (1) close to the movable block (701), and the positioning mechanism (11) comprises a second fixed plate (1101) fixed to the working chamber (1), a positioning rod (1102) slidably arranged on the second fixed plate (1101) up and down, a limiting plate (1104) fixed to the top of the positioning rod (1102), and a second elastic support member (1103) for pushing the positioning rod (1102) to move downward, wherein the positioning rod (1102) Located above the movable block (701), the movable block (701) has a positioning hole at the top thereof that matches the positioning rod (1102), mounting plates (903) are provided at both ends of the feeding plate (9), and the mounting plates (903) extend to the bottom of the limiting plate (1104), a push rod (904) is vertically fixed to the top of the mounting plate (903), and the push rod (904) is used to push the limiting plate (1104) upward when the feeding plate (9) rises to feed materials, so that the bottom end of the positioning rod (1102) is separated from the movable block (701).

7. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: A second material guide plate (1031) is obliquely mounted at the top end of the second material storage chamber (103), and one end of the second material guide plate (1031) close to the support roller (7) is higher than the other end, and a gap is reserved between the lowest end of the second material guide plate (1031) and the side wall of the second material storage chamber (103) for accommodating the steel pipe to pass through.

8. The steel pipe external cylindrical grinding machine according to claim 1, characterized in that: A movable baffle (12) is movably provided on one side of the second material storage chamber (103).

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