Round tube chamfering machine

Abstract

The utility model relates to the field of chamfering machines, and discloses a round tube chamfering machine which comprises two supports, the two supports are distributed left and right, fixing plates are fixedly connected to the tops of the opposite side walls of the two supports, two first guide rods are fixedly connected between the opposite side walls of the two fixing plates, and the two first guide rods are distributed front and back. The two first guide rods are fixedly connected with the two fixing plates correspondingly. A first bidirectional lead screw is rotationally connected between the bottoms of the opposite side walls of the two supports, and the two ends of the first bidirectional lead screw are rotationally connected with the two supports correspondingly. The top of the right support is fixedly connected with a self-locking motor. The two polishing plates are designed to carry the inner wall opening polishing head and the outer wall opening polishing head respectively, simultaneous chamfering of the inner wall and the outer wall of the pipe fitting is achieved, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of chamfering machines, specifically a round tube chamfering machine. Background Technology

[0002] Pipe fittings are widely used in industries such as metal processing, machinery manufacturing, and construction. During the production and use of pipe fittings, there are often problems such as burrs and sharp angles at the edges of their ports, which require chamfering and grinding.

[0003] Most current mechanical grinding equipment can only chamfer one position at the end of round pipe fittings, that is, it can only chamfer the inner or outer end of the round pipe fitting at a time; it cannot chamfer the inner and outer ends at the same time. This not only increases the complexity of operation, but also reduces work efficiency. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a round tube chamfering machine.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A round tube chamfering machine includes two supports, arranged horizontally. A fixed plate is fixedly connected to the top of each opposite sidewall of the two supports. Two guide rods are fixedly connected between the opposite sidewalls of the two fixed plates, arranged front to back, and each guide rod is fixedly connected to one of the two fixed plates. A bidirectional lead screw is rotatably connected between the bottom of the opposite sidewalls of the two supports, with both ends of the bidirectional lead screw rotatably connected to the two supports. A self-locking motor, which is a geared self-locking motor, is fixedly connected to the top of the right support. The right end of lead screw 1 passes through the right-side bracket. Both the right end of the bidirectional lead screw 1 and the right end of the output shaft of the self-locking motor are fixedly connected to pulleys. A belt is sleeved between the outer walls of the two pulleys. Two grinding plates are located between the two fixed plates, symmetrically distributed left and right. Three sliding sleeves pass through the upper and lower parts of the grinding plates; two sliding sleeves pass through the upper sides of the grinding plates, and one sliding sleeve passes through the lower part of the grinding plates. The grinding plates are fixedly connected to the sliding sleeves. The two upper sliding sleeves are slidably sleeved on the outer walls of the two guide rods 1, and the bottom sliding sleeve is connected to the bidirectional lead screw 1. The outer wall of the first grinding plate is threaded. The top of the opposite sidewalls of the two grinding plates are respectively rotatably connected to an inner wall grinding head and an outer wall grinding head. Grinding motor one and grinding motor two are fixedly connected to the top of the opposite sidewalls of the two grinding plates, respectively. The output shaft of grinding motor one passes through the left grinding plate and is rotatably connected to it. The output shaft of grinding motor one is fixedly connected to the inner wall grinding head, which is shaped like a frustum of a cone. The output shaft of grinding motor two passes through the right grinding plate. The output shaft of the first motor is rotatably connected to the grinding plate on the right. The output shaft of the second grinding motor is fixedly connected to one end of the outer wall grinding head. The other end of the outer wall grinding head is recessed inward. The inner recessed surface of the outer wall grinding head is conical, and the outer wall of the outer wall grinding head is cylindrical. Two connecting plates are fixedly connected between the tops of the two supports. The two connecting plates are located on the front and rear sides of the fixed plate. The fixed plate and the grinding plate are located between the two connecting plates. There is a gap between the grinding plate and the two connecting plates. Two clamping mechanisms are provided between the tops of the two connecting plates.

[0007] The clamping mechanism includes a clamp frame with a U-shaped upper part. The upper part of the clamp frame extends upward at both ends. The bottom ends of the clamp frame respectively wrap around the opposite sides of two connecting plates. The top and bottom of the connecting plates each have several pulleys, which are rotatably connected to the inside of both ends of the clamp frame. The upper and lower pulleys slide in cooperation with the top and bottom of the connecting plates, respectively. A guide rod two is fixedly connected between the top of the front and rear ends of the clamp frame. The top of the guide rod two has a double-acting screw two. The two ends of the double-acting screw two are rotatably connected to the top of the front and rear ends of the clamp frame. Two clamps are threadedly connected to the outer wall of the double-acting screw two. The two clamps are symmetrically distributed front and back. The bottom of the clamps is slidably connected to the guide rod two. The guide rod two passes through the bottom of the clamps. The rear end of the double-acting screw two is fixedly connected to one end of a rotating rod. The outer wall of the rotating rod is threaded with a locking nut. The locking nut abuts against the outer wall of the rear end of the clamp frame. The other end of the rotating rod is fixedly connected to a round rod.

[0008] The fixture includes clamp plate one and clamp plate two. Clamp plate one is plate-shaped, and clamp plate two is a transposed U-shaped plate. One side of clamp plate two is an open end. Clamp plate one and clamp plate two are inserted into each other. There is a gap between the open ends of clamp plate one and clamp plate two. Bidirectional lead screw two and guide rod two pass through the bottom of clamp plate one and clamp plate two respectively. Bidirectional lead screw two is threadedly engaged with the bottom of clamp plate one and the bottom of clamp plate two. Guide rod two is slidably connected to the bottom of clamp plate one and clamp plate two respectively. Right angle notches of the same size are provided at the opposite ends of clamp plate one and clamp plate two.

[0009] The beneficial effects of this utility model are:

[0010] This invention uses two grinding plates, each equipped with an inner wall grinding head and an outer wall grinding head, to simultaneously chamfer the inner and outer ends of round pipe fittings, thereby improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 yes Figure 1 Rear view structural diagram;

[0013] Figure 3 yes Figure 1 The right view;

[0014] Figure 4 yes Figure 3 Cross-sectional view at point AA;

[0015] Figure 5 yes Figure 1 Rear view;

[0016] Figure 6 yes Figure 5 Cross-sectional view at point BB;

[0017] Figure 7 yes Figure 2 A partial enlarged view of .

[0018] The reference numerals in all the attached drawings are as follows: 1. Bracket; 2. Fixing plate; 3. Guide rod one; 4. Double-acting lead screw one; 5. Self-locking motor; 6. Pulley; 7. Belt; 8. Grinding plate; 9. Sliding sleeve; 10. Grinding head for inner wall opening; 11. Grinding head for outer wall opening; 12. Grinding motor one; 13. Grinding motor two; 14. Connecting plate; 15. Fixture frame; 16. Pulley; 17. Guide rod two; 18. Double-acting lead screw two; 19. Fixture; 20. Rotating rod; 21. Locking nut; 22. Round rod; 23. Clamping plate one; 24. Clamping plate two; 25. Pipe fitting. Detailed Implementation

[0019] like Figure 1-7As shown: A round tube chamfering machine includes two supports 1, which are distributed horizontally. A fixing plate 2 is fixedly connected to the top of the opposite sidewalls of each support 1. Two guide rods 3 are fixedly connected between the opposite sidewalls of the two fixing plates 2, distributed front to back, and respectively fixedly connected to the two fixing plates 2. A bidirectional lead screw 4 is rotatably connected between the bottom of the opposite sidewalls of the two supports 1, with both ends of the bidirectional lead screw 4 rotatably connected to the two supports 1. A self-locking motor 5, which is a reduction gear self-locking motor, is fixedly connected to the top of the right support 1. The bidirectional lead screw 4... The right end of the bracket 1 extends through the right side. The right end of the bidirectional lead screw 4 and the right end of the output shaft of the self-locking motor 5 are both fixedly connected to pulleys 6. A belt 7 is sleeved between the outer walls of the two pulleys 6. Two grinding plates 8 are located between the two fixed plates 2, symmetrically distributed left and right. Three sliding sleeves 9 penetrate the upper and lower parts of the grinding plates 8. Two sliding sleeves 9 penetrate the upper sides of the grinding plates 8, and one sliding sleeve 9 penetrates the lower part of the grinding plates 8. The grinding plates 8 are fixedly connected to the sliding sleeves 9. The two upper sliding sleeves 9 are slidably sleeved on the outer walls of the two guide rods 3, and the bottom sliding sleeve 9 is screwed to the outer wall of the bidirectional lead screw 4. The two grinding plates 8 are rotatably connected to the top of their opposite sidewalls, with an inner wall grinding head 10 and an outer wall grinding head 11 respectively. Grinding motor 12 and grinding motor 23 are fixedly connected to the top of their opposite sidewalls, respectively. The output shaft of grinding motor 12 passes through the left grinding plate 8 and is rotatably connected to it. The output shaft of grinding motor 12 is fixedly connected to the inner wall grinding head 10, which is shaped like a frustum of a cone. The output shaft of grinding motor 23 passes through the right grinding plate 8. The output shaft is rotatably connected to the grinding plate 8 on the right side. The output shaft of the second grinding motor 13 is fixedly connected to one end of the outer wall grinding head 11. The other end of the outer wall grinding head 11 is recessed inward. The inner recessed surface of the outer wall grinding head 11 is conical, and the outer wall of the outer wall grinding head 11 is cylindrical. Two connecting plates 14 are fixedly connected between the tops of the two supports 1. The two connecting plates 14 are located on the front and rear sides of the fixed plate 2. The fixed plate 2 and the grinding plate 8 are located between the two connecting plates 14. There is a gap between the grinding plate 8 and the two connecting plates 14. Two clamping mechanisms are provided between the tops of the two connecting plates 14.

[0020] The clamping mechanism includes a clamp frame 15, the upper part of which is U-shaped. The front and rear ends of the upper part of the clamp frame 15 extend upwards. The bottom ends of the clamp frame 15 respectively wrap around the opposite sides of two connecting plates 14. The top and bottom of the connecting plates 14 each have several pulleys 16, which are rotatably connected to the inside of both ends of the clamp frame 15. The upper and lower pulleys 16 slide in cooperation with the top and bottom of the connecting plates 14, respectively. A guide rod 17 is fixedly connected between the top of the front and rear ends of the clamp frame 15. The top of the guide rod 17 has a two-way lead screw. 18. The two ends of the double-acting screw 18 are rotatably connected to the top of the front and rear ends of the fixture frame 15. The outer wall of the double-acting screw 18 is threaded with two fixtures 19. The two fixtures 19 are symmetrically distributed front and back. The bottom of the fixtures 19 is slidably connected to the guide rod 17. The guide rod 17 passes through the bottom of the fixtures 19. The rear end of the double-acting screw 18 is fixedly connected to one end of the rotating rod 20. The outer wall of the rotating rod 20 is threaded with a locking nut 21. The locking nut 21 abuts against the outer wall of the rear end of the fixture frame 15. The other end of the rotating rod 20 is fixedly connected to a round rod 22.

[0021] The clamp 19 includes a first clamp 23 and a second clamp 24. The first clamp 23 is plate-shaped, and the second clamp 24 is a transposed U-shaped plate. One side of the second clamp 24 is an open end. The first clamp 23 and the open end of the second clamp 24 are inserted into each other, and their open ends face each other. There is a gap between the open ends of the first clamp 23 and the second clamp 24. A double-acting lead screw 18 and a guide rod 17 pass through the bottom of the first clamp 23 and the second clamp 24, respectively. The double-acting lead screw 18 is threaded into the bottom of the first clamp 23 and the bottom of the second clamp 24, respectively. The guide rod 17 is slidably connected to the bottom of the first clamp 23 and the second clamp 24, respectively. The opposite ends of the first clamp 23 and the second clamp 24 are respectively provided with right-angle notches of the same size.

[0022] Clamping plate 1 (23) and clamping plate 2 (24) work together to form a centering fixture.

[0023] Place the pipe fitting 25 that needs to be chamfered between the right-angle notches of clamping plate 1 23 and clamping plate 24. By adjusting the position of clamp 19 (by rotating the rotating rod 20 to drive the two-way lead screw 18 to rotate, so that clamp 19 moves along the guide rod 17), the right-angle notches of clamping plate 1 23 and clamping plate 24 are close to each other and can clamp the outer wall of pipe fitting 25. At this time, clamping plate 1 23 and clamping plate 24 need to be able to support pipe fitting 25, but clamping plate 1 23 and clamping plate 24 cannot clamp pipe fitting 25 tightly, so that pipe fitting 25 can slide between clamping plate 1 23 and clamping plate 24.

[0024] When the self-locking motor 5 is started, its output shaft drives the bidirectional lead screw 4 to rotate via pulley 6 and belt 7. Since the bidirectional lead screw 4 is threadedly engaged with the sliding sleeve 9 at the bottom of the grinding plate 8, the rotation of the bidirectional lead screw 4 causes the two grinding plates 8 to move towards each other along the guide rod 3. The self-locking motor 5 is a servo motor.

[0025] As the grinding plate 8 moves, the inner wall grinding head 10 gradually inserts into the inner wall of the pipe fitting, while the outer wall grinding head 11 is fitted onto the outer wall of the pipe fitting. After the inner wall grinding head 10 and the outer wall grinding head 11 are pressed tightly against the pipe fitting 25, the double-acting screw 18 is rotated to ensure that the pipe fitting 25 is clamped by the clamping plates 23 and 24, and the locking nut 21 is tightened to prevent the double-acting screw 18 from not rotating during the grinding process.

[0026] Simultaneously, grinding motor 12 and grinding motor 23 are started. The output shaft of grinding motor 12 drives the inner wall grinding head 10 to rotate, grinding the inner wall port of pipe fitting 25. The output shaft of grinding motor 23 drives the outer wall grinding head 11 to rotate, grinding the outer wall port of pipe fitting 25. When grinding motor 12 and grinding motor 23 are rotating and grinding, the self-locking motor 5 can rotate, thus advancing the grinding. The distance between the inner wall grinding head 10 and the outer wall grinding head 11 is advanced according to the grinding needs. While the inner wall grinding head 10 and the outer wall grinding head 11 are rotating and grinding, the self-locking motor 5 rotates at the same time, so that the inner wall grinding head 10 and the outer wall grinding head 11 will move closer to each other while rotating.

[0027] Once the desired chamfer angle and smoothness are achieved through grinding, the grinding motors 12 and 13 are turned off, and the self-locking motor 5 is started in reverse, causing the bidirectional lead screw 4 to rotate in the opposite direction. This drives the two grinding plates 8 to move back to their initial positions along the guide rod 3.

[0028] Loosen the locking nut 21, adjust the positions of clamping plate 23 and clamping plate 24, and remove the polished pipe fitting 25. This utility model only protects the mechanical parts; functions implemented through software control are not within the scope of protection of this utility model.

Claims

1. A round tube chamfering machine, characterized in that, It includes two supports (1), which are distributed left and right. The top of the opposite side walls of the two supports (1) are fixedly connected to the fixed plates (2). The opposite side walls of the two fixed plates (2) are fixedly connected to two guide rods (3), which are distributed front and back. The two guide rods (3) are fixedly connected to the two fixed plates (2) respectively. The bottom of the opposite side walls of the two supports (1) are rotatably connected to a double-acting screw (4). The two ends of the double-acting screw (4) are rotatably connected to the two supports (1) respectively. The top of the right support (1) is fixedly connected to a self-locking motor (5), which is a reduction self-locking motor. The right end of the double-acting screw (4) passes through the right support. (1) The right end of the double-acting screw (4) and the right end of the output shaft of the self-locking motor (5) are both fixedly connected to pulleys (6). A belt (7) is sleeved between the outer walls of the two pulleys (6). There are two grinding plates (8) between the two fixed plates (2). The two grinding plates (8) are symmetrically distributed on the left and right. Three sliding sleeves (9) penetrate the upper and lower parts of the grinding plate (8). Two sliding sleeves (9) penetrate the upper two sides of the grinding plate (8). One sliding sleeve (9) penetrates the lower part of the grinding plate (8). The grinding plate (8) is fixedly connected to the sliding sleeves (9). The two upper sliding sleeves (9) are respectively slidably sleeved on the outer walls of the two guide rods (3). The bottom sliding sleeve (9) is screwed to the outer wall of the double-acting screw (4). The two grinding plates (8) are rotatably connected to the top of their opposite sidewalls, with an inner wall grinding head (10) and an outer wall grinding head (11) respectively. The top of their opposite sidewalls are fixedly connected to a first grinding motor (12) and a second grinding motor (13). The output shaft of the first grinding motor (12) passes through the left grinding plate (8) and is rotatably connected to the left grinding plate (8). The output shaft of the first grinding motor (12) is fixedly connected to the inner wall grinding head (10), which is shaped like a frustum of a cone. The output shaft of the second grinding motor (13) passes through the right grinding plate (8) and is rotatably connected to the inner wall grinding head (10). The output shaft is rotatably connected to the grinding plate (8) on the right side. The output shaft of the second grinding motor (13) is fixedly connected to one end of the outer wall grinding head (11). The other end of the outer wall grinding head (11) is recessed inward. The inner recessed surface of the outer wall grinding head (11) is conical, and the outer wall of the outer wall grinding head (11) is cylindrical. Two connecting plates (14) are fixedly connected between the tops of the two supports (1). The two connecting plates (14) are located on the front and rear sides of the fixed plate (2). The fixed plate (2) and the grinding plate (8) are located between the two connecting plates (14). There is a gap between the grinding plate (8) and the two connecting plates (14). Two clamping mechanisms are provided between the tops of the two connecting plates (14).

2. A round tube chamfering machine according to claim 1, characterized in that, The clamping mechanism includes a clamp frame (15), the upper part of which is U-shaped. The front and rear ends of the upper part of the clamp frame (15) extend upwards. The bottom ends of the clamp frame (15) respectively wrap around the opposite sides of two connecting plates (14). The top and bottom of the connecting plates (14) each have several pulleys (16). The pulleys (16) are rotatably connected inside the two ends of the clamp frame (15). The upper and lower pulleys (16) slide in cooperation with the top and bottom of the connecting plates (14) respectively. A guide rod two (17) is fixedly connected between the top of the front and rear ends of the clamp frame (15). The top of the guide rod two (17) has a two-way lead screw two (18). The two ends of the two-way lead screw (18) are rotatably connected to the front and rear top of the fixture frame (15). The outer wall of the two-way lead screw (18) is threaded with two fixtures (19). The two fixtures (19) are symmetrically distributed front and back. The bottom of the fixture (19) is slidably connected to the guide rod (17). The guide rod (17) passes through the bottom of the fixture (19). The rear end of the two-way lead screw (18) is fixedly connected to one end of the rotating rod (20). The outer wall of the rotating rod (20) is threaded with a locking nut (21). The locking nut (21) abuts against the rear outer wall of the fixture frame (15). The other end of the rotating rod (20) is fixedly connected to a round rod (22).

3. A round tube chamfering machine according to claim 2, characterized in that, The fixture (19) includes a first clamping plate (23) and a second clamping plate (24). The first clamping plate (23) is plate-shaped, and the second clamping plate (24) is a U-shaped plate with a transposed shape. One side of the second clamping plate (24) is an open end. The first clamping plate (23) and the open end of the second clamping plate (24) are inserted into each other. The open ends of the first clamping plate (23) and the second clamping plate (24) have a gap. The second double-acting screw (18) and the second guide rod (17) pass through the bottom of the first clamping plate (23) and the second clamping plate (24) respectively. The second double-acting screw (18) is threadedly engaged with the bottom of the first clamping plate (23) and the bottom of the second clamping plate (24). The second guide rod (17) is slidably connected to the bottom of the first clamping plate (23) and the second clamping plate (24) respectively. The opposite ends of the first clamping plate (23) and the second clamping plate (24) are respectively provided with right-angle notches of the same size.

Images