An electric screw press with a guide structure

Abstract

The present invention relates to an electric screw press with a guide structure, belonging to the field of screw presses, which comprises a frame, a screw is rotatably connected to the frame, a flywheel is fixedly arranged on the top of the screw, a protective cover is fixedly arranged on the top of the frame, the protective cover is arranged outside the flywheel, and a guide mechanism is arranged on the top of the flywheel; the guide mechanism comprises a guide column fixedly arranged in the middle of the flywheel, the guide column is located at the top of the flywheel, a guide sleeve is fixedly arranged on the top of the protective cover, and the guide column is rotatably connected in the guide sleeve. The present invention has the effect of reducing the tilting of the flywheel during movement and not affecting the precision and quality of the forging.

Description

Technical Field

[0001] The invention relates to the field of screw presses in the forging industry, in particular to an electric screw press with a guide structure. Background Art

[0002] Screw press is a general term for a pressurizing machine that generates pressure by rotating one or more sets of outer and inner bolts within a frame.

[0003] There are two types of screw presses: one is to apply torque to the bolt to generate static pressure, and the other is to concentrate the rotational energy of the flywheel fixed on the bolt for forming.

[0004] The striking stroke and return stroke of the slider of the electric screw press are realized by the frequent forward and reverse rotation of the driving motor. At the same time, the flywheel is driven to rotate and then reversely rotate. The flywheel and the driving gear are meshed, and the flywheel is prone to tilt during movement, resulting in poor precision and quality of forgings. Summary of the invention

[0005] In order to reduce the tilting of the flywheel during movement and not affect the precision and quality of the forgings, the present invention provides an electric screw press with a guide structure.

[0006] The electric screw press with a guide structure provided by the present invention adopts the following technical solution:

[0007] An electric screw press with a guide structure comprises a frame, a screw is rotatably connected to the frame, a flywheel is fixedly arranged on the top of the screw, a protective cover is fixedly arranged on the top of the frame, the protective cover is arranged outside the flywheel, and a guide mechanism is arranged on the top of the flywheel; the guide mechanism comprises a guide column fixedly arranged in the middle of the flywheel, the guide column is located at the top of the flywheel, a guide sleeve is fixedly arranged on the top of the protective cover, and the guide column is rotatably connected in the guide sleeve.

[0008] By adopting the above technical solution, when the flywheel rotates, it drives the guide column to rotate, and the top of the guide column is clamped in the guide sleeve and rotates in the guide sleeve. The guide column acts as a limit on the guide sleeve, reducing the tilt of the guide column during the rotation process, thereby reducing the tilt angle of the flywheel during the rotation process without affecting the accuracy of the forging.

[0009] Optionally, a detection mechanism is provided on the top of the protective cover, and a correction mechanism is provided inside the protective cover. The detection mechanism is used to detect the offset position of the guide column in real time, and when the offset value of the guide column is greater than a preset value, the correction mechanism is controlled to limit the guide column.

[0010] By adopting the above technical solution, the detection mechanism can detect the offset position of the guide column in real time. When the offset value of the guide column is greater than the preset value, the correction mechanism is controlled to limit the guide column, thereby reducing the inclination angle of the flywheel.

[0011] Optionally, the detection mechanism includes a distance sensor arranged on the top of the protective cover, the top of the protective cover is provided with a through hole, the end of the guide column passes through the through hole, and the distance sensor is used to detect the offset angle of the top of the guide column in real time.

[0012] By adopting the above technical solution, when the flywheel tilts during rotation, the flywheel drives the top of the guide column to deviate relative to the vertical direction, and the distance sensor can detect the deviation value of the guide column in real time.

[0013] Optionally, the correction mechanism includes a driving cylinder arranged in the protective cover, the driving cylinder is arranged horizontally, the cylinder body of the driving cylinder is fixedly arranged in the protective cover, the piston rod of the driving cylinder is arranged toward the guide column, the end of the piston rod of the driving cylinder is fixedly provided with a positioning block, the inner wall of the protective cover is provided with a positioning seat, a transmission wheel is rotatably connected in the positioning seat, a connecting rod 1 is hinged at an eccentric position of the transmission wheel, an end of the connecting rod 1 away from the transmission wheel is hinged to the positioning block, a connecting rod 2 is hinged on the side of the transmission wheel away from the connecting rod 1, the connecting rod 2 is hinged at the eccentric position of the transmission wheel, and an end of the connecting rod 2 away from the transmission wheel is hinged to a limiting ring, and the limiting ring is sleeved on the guide column.

[0014] By adopting the above technical solution, when the flywheel rotates, it drives the guide column to rotate. If the flywheel tilts, it can drive the guide column to tilt. The distance sensor detects the tilt position of the guide column in real time. When the tilt position is greater than the preset value, the piston rod of the driving cylinder is controlled to be retracted, and the connecting rod drives the transmission wheel to rotate clockwise, driving the limit ring to slide upward along the guide column, reducing the offset angle of the guide column, and then reducing the tilt angle of the flywheel.

[0015] Optionally, a plurality of balls are rotatably connected to the inner wall of the limiting ring.

[0016] By adopting the above technical solution, when the limiting ring moves vertically along the guide column, the ball bearings can reduce the friction between the limiting ring and the guide column.

[0017] Optionally, the correction mechanism includes a left clamping plate and a right clamping plate arranged in the protective cover, the left clamping plate and the right clamping plate are both semi-arc-shaped, and the left clamping plate and the right clamping plate together form a clamping ring for the guide column to pass through, and a driving component is arranged in the protective cover to drive the left clamping plate and the right clamping plate to move toward each other so as to limit the guide column in the horizontal direction.

[0018] By adopting the above technical solution, the driving component drives the left clamping plate and the right clamping plate to move until they abut against the outside of the guide column, which can limit the guide column and reduce the inclination angle of the guide column. The driving component drives the left clamping plate and the right clamping plate to move away from each other, so that the left clamping plate and the right clamping plate are separated.

[0019] Optionally, the driving assembly includes a power cylinder fixed in the protective cover. When the distance sensor detects that the guide column is tilted, the power cylinder is controlled to work. A connecting rod is fixed to the end of the piston rod of the power cylinder. The two ends of the connecting rod are respectively hinged with a rocker bar 1 and a rocker bar 2. The end of the rocker bar 1 away from the connecting rod is hinged to the outer side of the left clamping plate, and the end of the rocker bar 2 away from the connecting rod is hinged to the outer side of the right clamping plate. Rocker bar 3 is hinged on the left clamping plate, and rocker bar 4 is hinged on the right clamping plate. The ends of rocker bar 3 and rocker bar 4 away from the left clamping plate and the right clamping plate are jointly hinged with a positioning rod. The end of the positioning rod away from rocker bar 3 and rocker bar 4 is fixed with a fixing rod, and the fixing rod is fixedly connected to the inner wall of the protective cover.

[0020] By adopting the above technical solution, the flywheel drives the guide column to rotate in the guide sleeve. When the flywheel tilts, the guide column also tilts relatively. When the distance sensor detects that the offset distance of the guide column is greater than the preset value, the piston rod of the control power cylinder is retracted, and the rocker arm 1, the rocker arm 2, the rocker arm 3 and the rocker arm 4 all move toward the guide column, pushing the left clamping plate and the right clamping plate to move toward the guide column and form a retaining ring, thereby limiting the tilting and swinging angle of the guide column and further reducing the swinging angle of the flywheel.

[0021] Optionally, a buffer mechanism is provided in the guide sleeve; the buffer mechanism includes a buffer spring fixed to the inner wall of the guide sleeve, the buffer spring is distributed circumferentially along the inner wall of the guide sleeve, a graphite buffer pad is fixed to one end of the buffer spring away from the guide sleeve, and the guide column passes through the graphite buffer pad.

[0022] By adopting the above technical solution, when the flywheel drives the guide column to rotate, the guide column tilts to squeeze the graphite buffer pad. The deformation of the spring can reduce the impact between the guide column and the graphite buffer pad, thereby reducing the wear between the graphite buffer pads and extending the service life of the guide sleeve.

[0023] Optionally, two bearings are fixedly provided near the top of the guide column.

[0024] By adopting the above technical solution, the bearing can facilitate the guide shaft to rotate in the graphite buffer pad, thereby reducing the friction of the guide column on the graphite buffer pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0026] Figure 2This is a cross-sectional view of the first embodiment to highlight the flywheel and the main gear.

[0027] Figure 3 This is a cross-sectional view of the first embodiment to highlight the buffer mechanism.

[0028] Figure 4 yes Figure 3 Enlarged view of part A.

[0029] Figure 5 It is a structural schematic diagram of the deviation correction mechanism in the first embodiment.

[0030] Figure 6 It is a structural diagram for highlighting the guide column and the deviation correction structure in the second embodiment.

[0031] Figure 7 is a schematic diagram of the structure of the flywheel, guide column and deviation correction mechanism in the second embodiment,

[0032] Figure 8 It is a structural schematic diagram of the deviation correction mechanism in the second embodiment.

[0033] Explanation of the accompanying drawings: 1. frame; 11. protective cover; 12. screw; 13. flywheel; 14. driving motor; 15. main gear; 16. through hole; 2. guide mechanism; 21. guide column; 22. guide sleeve; 3. buffer mechanism; 31. buffer spring; 32. graphite buffer pad; 33. bearing; 4. detection mechanism; 41. positioning plate; 42. distance sensor; 5. correction mechanism; 51. driving cylinder; 511. positioning block; 52. positioning seat; 521. transmission wheel; 53. connecting rod one; 54. connecting rod two; 55. limiting ring; 551. ball; 56. left clamping plate; 57. right clamping plate; 58. power cylinder; 581. connecting rod; 582. swing rod one; 583. swing rod two; 584. swing rod three; 585. swing rod four; 586. positioning rod; 587. fixing rod. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-8 The present invention is described in further detail.

[0035] Embodiment 1:

[0036] Embodiment 1 of the present invention discloses an electric screw press with a guide structure. Figure 1 and Figure 2An electric screw press with a guide structure includes a frame 1, a protective cover 11 is arranged on the top of the frame 1, a screw 12 is rotatably connected in the frame 1, the axial direction of the screw 12 is arranged vertically, the top of the screw 12 extends into the protective cover 11 and is fixedly connected to a flywheel 13, a driving motor 14 is fixedly arranged on the top of the protective cover 11, the output shaft of the driving motor 14 extends into the protective cover 11, a main gear 15 is rotatably connected in the protective cover 11, the main gear 15 is meshed with the flywheel 13, and the output shaft of the driving motor 14 is fixedly connected to the middle part of the flywheel 13; the motor drives the main gear 15 to rotate, and the main gear 15 drives the flywheel 13 to rotate.

[0037] In order to reduce the tilting of the flywheel 13 during the rotation process, a guide mechanism 2 is provided in the protective cover 11. The guide mechanism 2 includes a guide column 21 fixedly arranged in the middle of the flywheel 13, the guide column 21 is located at the top of the flywheel 13, a guide sleeve 22 is fixedly arranged on the top of the protective cover 11, the guide column 21 is inserted into the guide sleeve 22 and is rotatably connected relative to the guide sleeve 22; when the flywheel 13 rotates, the guide column 21 is driven to rotate, the top of the guide column 21 is clamped in the guide sleeve 22 and rotates in the guide sleeve 22, the guide column 21 plays a role of limiting the guide sleeve 22, reducing the tilting of the guide column 21 during the rotation process, thereby reducing the tilting angle of the flywheel 13 during the rotation process without affecting the accuracy of the forging.

[0038] Reference Figure 3 and Figure 4 As the flywheel 13 drives the guide post 21 to rotate, collision and friction occur between the guide post 21 and the guide sleeve 22, thereby causing wear on the inner wall of the guide sleeve 22. In order to reduce the wear between the guide post 21 and the guide sleeve 22, a buffer mechanism 3 is provided on the inner wall of the guide sleeve 22. The buffer mechanism 3 includes a buffer spring 31 fixed to the inner wall of the guide sleeve 22. The buffer spring 31 is distributed along the circumference of the inner wall of the guide sleeve 22. A graphite buffer pad 32 is fixed to one end of the buffer spring 31 away from the guide sleeve 22. The guide post 21 passes through the graphite buffer pad 32. When the flywheel 13 drives the guide post 21 to rotate, the guide post 21 tilts to squeeze the graphite buffer pad 32. The deformation of the spring can reduce the impact between the guide post 21 and the graphite buffer pad 32, thereby reducing the wear between the graphite buffer pad 32 and extending the service life of the guide sleeve 22. Two bearings 33 are fixedly provided near the top of the guide column 21 . The bearings 33 can facilitate the guide shaft to rotate in the graphite buffer pad 32 , thereby reducing the friction of the guide column 21 on the graphite buffer pad 32 .

[0039] Reference Figure 2 and Figure 4In order to reduce the offset of the guide column 21 during the rotation process, a detection mechanism 4 is provided on the top of the protective cover 11, and a correction mechanism 5 is provided inside the protective cover 11. The detection mechanism 4 is used to detect the displacement of the guide column 21 during the rotation process. When the displacement of the offset reaches a certain value, the correction mechanism 5 is controlled to limit the guide column 21, thereby reducing the offset degree of the guide column 21 during the rotation process, and further reducing the offset degree of the flywheel 13 during the rotation process.

[0040] A through hole 16 is provided at the top of the protective cover 11, and the through hole 16 is located above the guide column 21. The end of the guide column 21 passes through the through hole 16. The detection mechanism 4 includes a positioning plate 41 fixedly mounted on the top of the protective cover 11. The positioning plate 41 is arranged close to the through hole 16. A distance sensor 42 is fixedly provided on one side of the positioning plate 41 close to the through hole 16. The distance sensor 42 is used to detect the deviation angle of the top of the guide column 21 in real time. When it is detected that the deviation angle of the top of the guide column 21 is greater than a preset value, the correction mechanism 5 is controlled to work.

[0041] Reference Figure 2 and Figure 5 The deviation correction mechanism 5 includes a driving cylinder 51 arranged in the protective cover 11. The driving cylinder 51 is arranged horizontally. The cylinder body of the driving cylinder 51 is fixedly arranged in the protective cover 11. The piston rod of the driving cylinder 51 is arranged toward the guide column 21. The end of the piston rod of the driving cylinder 51 is fixedly provided with a positioning block 511; a positioning seat 52 is arranged on the inner wall of the protective cover 11, and a driving wheel 521 is rotatably connected in the positioning seat 52. A connecting rod 53 is hinged at the eccentric position of the driving wheel 521. The connecting rod 53 One end away from the transmission wheel 521 is hinged on the positioning block 511; the side of the transmission wheel 521 away from the connecting rod 1 53 is hinged with a connecting rod 2 54, and the connecting rod 2 54 is hinged at the eccentric position of the transmission wheel 521. The end of the connecting rod 2 54 away from the transmission wheel 521 is hinged with a limit ring 55, and the limit ring 55 is sleeved on the guide column 21. The inner wall of the limit ring 55 is rotatably connected to a plurality of ball bearings 551, and the ball bearings 551 can reduce the friction between the limit ring 55 and the guide column 21.

[0042] When the flywheel 13 rotates, it drives the guide column 21 to rotate. If the flywheel 13 tilts, it drives the guide column 21 to tilt. The distance sensor 42 detects the tilt position of the guide column 21 in real time. When the tilt position is greater than the preset value, the piston rod of the driving cylinder 51 is controlled to be retracted, and the connecting rod 53 drives the transmission wheel 521 to rotate clockwise, driving the limit ring 55 to slide upward along the guide column 21, reducing the offset angle of the guide column 21, thereby reducing the tilt angle of the flywheel 13.

[0043] The implementation principle of an electric screw press with a guide structure in the first embodiment of the invention is as follows: the driving motor 14 drives the main gear 15 to rotate, the main gear 15 drives the flywheel 13 to rotate, and the flywheel 13 drives the guide column 21 to rotate in the guide sleeve 22. When the flywheel 13 is tilted, the guide column 21 is also tilted relatively. When the distance sensor 42 detects that the offset distance of the guide column 21 is greater than the preset value, the piston rod of the driving cylinder 51 is controlled to be retracted, so that the limit ring 55 moves upward along the guide column 21.

[0044] Embodiment 2:

[0045] Embodiment 2 of the present invention discloses an electric screw press with a guide structure. Figure 6 and Figure 7 , which is different from the first embodiment, is that the correction mechanism 5 includes a left clamping plate 56 and a right clamping plate 57 arranged in the protective cover 11, the left clamping plate 56 and the right clamping plate 57 are both semi-arc-shaped, the left clamping plate 56 and the right clamping plate 57 together form a clamping ring, the guide column 21 passes between the left clamping plate 56 and the right clamping plate 57, and a driving component for driving the left clamping plate 56 and the right clamping plate 57 to move toward or away from each other is arranged in the protective cover 11; the driving component drives the left clamping plate 56 and the right clamping plate 57 to move until they abut against the outside of the guide column 21, which can limit the guide column 21 and reduce the inclination angle of the guide column 21. The driving component drives the left clamping plate 56 and the right clamping plate 57 to move away from each other, so that the left clamping plate 56 and the right clamping plate 57 are separated.

[0046] Reference Figure 8 The driving assembly includes a power cylinder 58 fixedly mounted in the protective cover 11. The power cylinder 58 is controlled by the distance sensor 42. When the distance sensor 42 detects that the guide column 21 is tilted, the power cylinder 58 is controlled to work. A connecting rod 581 is fixedly mounted at the end of the piston rod of the power cylinder 58. The two ends of the connecting rod 581 are respectively hinged with a swing rod 1 582 and a swing rod 2 583. The end of the swing rod 1 582 away from the connecting rod 581 is hinged to the outer side of the left clamping plate 56, and the end of the swing rod 2 583 away from the connecting rod 581 is hinged to the outer side of the right clamping plate 57. A rocker arm three 584 is hinged on the left clamping plate 56, and a rocker arm four 585 is hinged on the right clamping plate 57. The rocker arm three 584 and the rocker arm four 585 are hinged with a positioning rod 586 at one end away from the left clamping plate 56 and the right clamping plate 57. A fixing rod 587 is fixedly disposed at one end of the positioning rod 586 away from the rocker arm three 584 and the rocker arm four 585. The fixing rod 587 is fixedly connected to the inner wall of the protective cover 11.

[0047] The implementation principle of the electric screw press with a guide structure in the second embodiment of the invention is:

[0048] The driving motor 14 drives the main gear 15 to rotate, the main gear 15 drives the flywheel 13 to rotate, and the flywheel 13 drives the guide column 21 to rotate in the guide sleeve 22. When the flywheel 13 is tilted, the guide column 21 is also tilted relatively. When the distance sensor 42 detects that the offset distance of the guide column 21 is greater than the preset value, the piston rod of the control power cylinder 58 is retracted, and the rocker arm 1 582, the rocker arm 2 583, the rocker arm 3 584 and the rocker arm 4 585 all move toward the guide column 21, pushing the left clamping plate 56 and the right clamping plate 57 to move toward the guide column 21 and form a retaining ring, thereby limiting the tilting and swinging angle of the guide column 21, and further reducing the swinging angle of the flywheel 13.

[0049] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric screw press with a guide structure, comprising a frame (1), a screw (12) rotatably connected to the frame (1), a flywheel (13) fixedly arranged on the top of the screw (12), a protective cover (11) fixedly arranged on the top of the frame (1), the protective cover (11) being arranged outside the flywheel (13), characterized in that: A guide mechanism (2) is provided on the top of the flywheel (13); The guide mechanism (2) comprises a guide column (21) fixedly arranged in the middle of the flywheel (13), the guide column (21) being located at the top of the flywheel (13), a guide sleeve (22) being fixedly arranged at the top of the protective cover (11), and the guide column (21) being rotatably connected in the guide sleeve (22); A detection mechanism (4) is arranged on the top of the protective cover (11), and a deviation correction mechanism (5) is arranged inside the protective cover (11), the detection mechanism (4) is used to detect the offset position of the guide column (21) in real time, and when the offset value of the guide column (21) is greater than a preset value, the deviation correction mechanism (5) is controlled to limit the guide column (21); The deviation correction mechanism (5) comprises a driving cylinder (51) arranged in the protective cover (11), the driving cylinder (51) is arranged horizontally, the cylinder body of the driving cylinder (51) is fixedly arranged in the protective cover (11), the piston rod of the driving cylinder (51) is arranged toward the guide column (21), a positioning block (511) is fixedly arranged at the end of the piston rod of the driving cylinder (51), a positioning seat (52) is arranged on the inner wall of the protective cover (11), a transmission wheel (521) is rotatably connected in the positioning seat (52), and a transmission wheel (521) is arranged in the transmission seat (52). A connecting rod 1 (53) is hinged at an eccentric position of the wheel (521), one end of the connecting rod 1 (53) away from the transmission wheel (521) is hinged on a positioning block (511), a side of the transmission wheel (521) away from the connecting rod 1 (53) is hinged with a connecting rod 2 (54), the connecting rod 2 (54) is hinged at an eccentric position of the transmission wheel (521), one end of the connecting rod 2 (54) away from the transmission wheel (521) is hinged with a limiting ring (55), and the limiting ring (55) is sleeved on the guide column (21); The inner wall of the limiting ring (55) is rotatably connected to a plurality of balls (551).

2. The electric screw press with a guide structure according to claim 1, characterized in that: The detection mechanism (4) comprises a distance sensor (42) arranged on the top of the protective cover (11); a through hole (16) is provided on the top of the protective cover (11); the end of the guide column (21) passes through the through hole (16); and the distance sensor (42) is used to detect the offset angle of the top of the guide column (21) in real time.

3. The electric screw press with a guide structure according to claim 1, characterized in that: The deviation correction mechanism (5) comprises a left clamping plate (56) and a right clamping plate (57) which are arranged in the protective cover (11); the left clamping plate (56) and the right clamping plate (57) are both semi-arc-shaped; the left clamping plate (56) and the right clamping plate (57) together form a clamping ring for the guide column (21) to pass through; and a driving component is arranged in the protective cover (11) to drive the left clamping plate (56) and the right clamping plate (57) to move toward each other so as to limit the guide column (21) in the horizontal direction.

4. The electric screw press with a guide structure according to claim 3, characterized in that: The driving assembly comprises a power cylinder (58) fixedly arranged in the protective cover (11). When the distance sensor (42) detects that the guide column (21) is tilted, the power cylinder (58) is controlled to work. A connecting rod (581) is fixedly arranged at the end of the piston rod of the power cylinder (58). The two ends of the connecting rod (581) are respectively hinged with a swing rod 1 (582) and a swing rod 2 (583). One end of the swing rod 1 (582) away from the connecting rod (581) is hinged to the outer side of the left clamping plate (56). The end of the swing rod 2 (583) away from the connecting rod (581) is hinged to the outer side of the left clamping plate (56). 1) is hinged to the outer side of the right clamping plate (57), a swing rod three (584) is hinged on the left clamping plate (56), and a swing rod four (585) is hinged on the right clamping plate (57), and a positioning rod (586) is hinged to one end of the swing rod three (584) and the swing rod four (585) away from the left clamping plate (56) and the right clamping plate (57), and a fixing rod (587) is fixedly provided at one end of the positioning rod (586) away from the swing rod three (584) and the swing rod four (585), and the fixing rod (587) is fixedly connected to the inner wall of the protective cover (11).

5. The electric screw press with a guide structure according to claim 1, characterized in that: A buffer mechanism (3) is arranged in the guide sleeve (22); The buffer mechanism (3) comprises a buffer spring (31) fixedly mounted on the inner wall of the guide sleeve (22); the buffer spring (31) is distributed circumferentially along the inner wall of the guide sleeve (22); a graphite buffer pad (32) is fixedly mounted on one end of the buffer spring (31) away from the guide sleeve (22); and the guide column (21) passes through the graphite buffer pad (32).

6. The electric screw press with a guide structure according to claim 1, characterized in that: Two bearings (33) are fixedly arranged near the top of the guide column (21).

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