Graphite electrode flat head device and method

Abstract

The present invention discloses a graphite electrode flat head device, including a bottom plate, a sliding mechanism, a lifting mechanism, and a driving mechanism. A horizontal plate is arranged in the middle of the top surface of the bottom plate, and the bottom surface of the horizontal plate is connected to the bottom plate through a sliding mechanism. A semicircular card plate is arranged above the horizontal plate, and a graphite electrode is arranged in the semicircular card plate, and the horizontal plate is connected to the semicircular card plate through a lifting mechanism; a pair of L-shaped plates are arranged on both sides of the top surface of the bottom plate, and a side plate is arranged on the outer side of the top surface of each L-shaped plate, and a linkage bearing is arranged in the middle of each side plate, and a linkage shaft is inserted in each linkage bearing, and a flat head grinding disc is arranged at the inner end of each linkage shaft, and the bottom surface of the bottom plate is respectively connected to two linkage shafts through a driving mechanism. The present invention also discloses a method for using a graphite electrode flat head device. The present invention uses various mechanisms in a coordinated manner, and the overall structural design is compact, which facilitates the multi-directional adjustment of the graphite electrode position, and further improves the efficiency of graphite electrode flat head processing.

Description

Technical Field

[0001] The invention relates to the technical field of graphite electrode processing, and in particular to a graphite electrode flat head device and method. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made from petroleum coke and asphalt coke as aggregates and coal tar as binder, through the process of raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing.

[0003] After the graphite electrode is formed, it needs to be flattened to meet the specifications. The existing graphite electrode flattening equipment has the following disadvantages:

[0004] 1. It still uses traditional equipment with manual operation and manual measurement. It is not convenient to adjust the spacing of the grinding discs according to the length of the graphite electrode. It is interfered by human factors, resulting in large operating errors and low measurement accuracy.

[0005] 2. When the graphite electrode is flat, it is placed on a trolley. First, it needs to be manually centered, that is, it is manually checked whether it is in the middle of the grinding discs at both ends. It usually takes two or three times to achieve centering. The trolley then grinds it through the traction movement of the wire rope below. A long time will cause the wire rope to change in tightness or even break, affecting normal work.

[0006] In view of the above problems, this application improves it. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a graphite electrode flat head device.

[0008] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0009] A graphite electrode flat head device comprises a bottom plate, a sliding mechanism, a lifting mechanism, and a driving mechanism, wherein the bottom plate is a horizontally placed rectangular plate, a horizontally placed horizontal plate is provided in the middle of the top surface of the bottom plate, the bottom surface of the horizontal plate is connected to the bottom plate through a sliding mechanism, a horizontally placed semicircular clamping plate is provided above the horizontal plate, a horizontally placed graphite electrode is provided in the semicircular clamping plate, and the horizontal plate is connected to the semicircular clamping plate through a lifting mechanism;

[0010] A pair of symmetrically fixed L-shaped plates are provided on both sides of the top surface of the base plate, a vertically fixed side plate is provided on the outer side of the top surface of each L-shaped plate, a penetrating and fixed linkage bearing is provided in the middle of each side plate, a horizontally penetrating linkage shaft is inserted in each linkage bearing, a flat-head grinding disc is provided at the inner end of each linkage shaft, and the bottom surface of the base plate is connected to the two linkage shafts respectively through a driving mechanism.

[0011] Preferably, the sliding mechanism includes a longitudinal sliding mechanism and a transverse sliding mechanism, the longitudinal sliding mechanism includes a longitudinal plate and a longitudinal plate driving device, the front and rear sides of the top surface of the bottom plate are both provided with slide rails perpendicular to the length direction of the bottom plate, the lower end of the longitudinal plate is provided with a slide table matched with the slide rails, the longitudinal plate driving device includes a linear motor, the linear motor is fixedly arranged on the left side of the top surface of the bottom plate, and the output end of the linear motor is fixedly connected to the longitudinal plate;

[0012] The lateral sliding mechanism includes a sliding motor and a lead screw. A first bearing is provided in the middle of the front side of the top surface of the longitudinal plate, and a sliding motor is provided in the middle of the rear side of the top surface of the longitudinal plate. A coaxially connected lead screw is provided at the end of the motor shaft of the sliding motor, and the front end of the lead screw is inserted in the first bearing. A pair of spirally connected wire drums are sleeved on the lead screw, and the two wire drums are respectively fixed to the middle of the front and rear sides of the bottom surface of the transverse plate. The L-shaped plate is within the movement range of the transverse plate, and distance sensors are provided on the inner side of the L-shaped plate.

[0013] Preferably, a pair of longitudinally parallel limit slide bars are provided on both sides of the transverse plate on the top surface of the longitudinal plate, and each of the limit slide bars is provided with a trapezoidal fixing block at both ends of the front and rear ends, and each of the trapezoidal fixing blocks is fixedly connected to the top surface of the longitudinal plate. Limit slide cylinders are provided at the corners of the two side surfaces of the transverse plate, and each of the limit slide cylinders is slidably mounted on the corresponding limit slide bar, and a limit switch 52 is provided on the limit slide bar.

[0014] Preferably, the lifting mechanism includes a hydraulic cylinder and a square positioning rod. A vertically fixed hydraulic cylinder is provided in the middle of the top surface of the horizontal plate. A hydraulic connecting block is provided at the end of the hydraulic rod of the hydraulic cylinder. The hydraulic connecting block is fixed to the middle of the bottom surface of the semicircular clamping plate. Positioning blocks are provided at the four corners of the bottom surface of the semicircular clamping plate. A square positioning rod is provided on the bottom surface of each positioning block. Square positioning tubes are provided at the four corners of the top surface of the horizontal plate. The bottom end of each square positioning rod is slidably inserted in the corresponding square positioning tube.

[0015] Preferably, a semicircular cover plate with a movable hinge is provided on the rear side of the top surface of the semicircular clamping plate, and semicircular rubber pads are provided on the inner walls of the semicircular cover plate and the semicircular clamping plate, and the two semicircular rubber pads are respectively pressed against the upper and lower surfaces of the graphite electrode, and a plurality of spirally penetrated fastening bolts are arranged on the front side of the semicircular cover plate, and the inner end of each of the fastening bolts is spirally locked with the front side of the semicircular clamping plate.

[0016] Preferably, a square groove is provided at the inner end of the linkage shaft, a square rod is provided at the middle of the outer side surface of the flat-head grinding disc, and the square rod is slidably inserted in the square groove.

[0017] Preferably, a flange ring is sleeved on the middle part of the linkage shaft on the inner side of the side plate, and I-shaped shafts that are rotatably connected are evenly engaged on the flange ring. A screw is provided at the outer end of each I-shaped shaft, and threaded barrels are evenly distributed on the outer side of the square rod in the middle part of the outer side surface of the flat-head grinding disc, and the outer end of each screw is spirally inserted in the corresponding threaded barrel.

[0018] Preferably, the driving mechanism includes a driving shaft and a pair of driving belts. A pair of bearing seats are provided in the middle of both sides of the bottom surface of the base plate, and a driving bearing is provided in each bearing seat. A transversely placed driving shaft is provided on the bottom surface of the base plate, and both ends of the driving shaft are respectively inserted into corresponding driving bearings. Driving pulleys are provided at both ends of the driving shaft on the outside of the base plate, and a driven pulley is provided at the outer end of each linkage shaft, and both ends of each driving belt are respectively provided on the corresponding driving pulley and driven pulley.

[0019] Preferably, support legs are provided at the four corners of the bottom surface of the base plate, a rectangular groove is opened in the middle of the bottom surface of the base plate, a driving motor is provided in the rectangular groove, a driving gear is provided at the end of the motor shaft of the driving motor, a driven gear is sleeved in the middle of the driving shaft, and the driving gear is meshingly connected with the driven gear.

[0020] The present invention also provides a method for using a graphite electrode flat head device, comprising the following steps:

[0021] Step 1: The driving motor, the sliding motor, the linear motor, and the hydraulic cylinder are electrically connected to the external power supply through power lines, respectively. According to the length of the graphite electrode, the spacing between the two flat-head grinding discs is adjusted, and the screw rod is driven to rotate in coordination with the threaded barrel by rotating the I-axis, thereby driving the square rod to slide outward or inward along the square groove, thereby changing the spacing between the two flat-head grinding discs;

[0022] Step 2: Place the graphite electrode that needs to be polished flat on the center of the semicircular cardboard, cover it with a semicircular cover plate, and tighten the fastening bolts respectively. The inner end of each fastening bolt is screwed and locked with the front side of the semicircular cardboard, so that the two semicircular rubber pads are respectively pressed against the upper and lower surfaces of the graphite electrode, thereby increasing the stability of the graphite electrode when placed;

[0023] Step 3: Start the driving motor, the motor shaft of the driving motor drives the driving gear to rotate synchronously, the meshing drives the driven gear and the driving shaft to rotate synchronously, drives the driving pulleys on both sides to rotate synchronously, and drives the corresponding driven pulleys and the linkage shaft to rotate synchronously through the driving belt, thereby driving the two flat head grinding discs to rotate at high speed;

[0024] Step 4, start the sliding motor, the motor shaft of the sliding motor drives the lead screw to rotate synchronously, and then drives the wire drum to rotate with the spiral, drives the limit slide cylinder to slide backward along the limit slide rod, drives the cross plate and the graphite electrode to move backward, when the limit slide cylinder 32 hits the limit switch, the graphite electrode is located directly below the flat head grinding disc;

[0025] Step 5: Use distance sensors to detect the distances from the centers of both ends of the graphite electrode to the flat-head grinding discs on both sides. When the values ​​detected by the distance sensors on both sides are not equal, use a linear motor to fine-tune the longitudinal plate so that the graphite electrode is in the middle of the two flat-head grinding discs.

[0026] Step six, start the hydraulic cylinder. The hydraulic rod of the hydraulic cylinder drives the hydraulic connecting block and the semicircular clamping plate to rise slowly, drives the square positioning rod to slide upward along the square positioning cylinder, drives the graphite electrode to slide upward and rise. Due to the high-speed rotation of the flat-head grinding disc, the two ends of the graphite electrode are driven to slowly grind upward.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In the present invention, the spacing between the two flat-head grinding discs is adjusted according to the length of the graphite electrode, and the screw rod is driven to rotate in coordination with the threaded barrel by rotating the I-shaft, thereby driving the square rod to slide outward or inward along the square groove, thereby changing the spacing between the two flat-head grinding discs; the graphite electrode to be flat-headed is placed centrally on the semicircular clamping plate, covered with a semicircular cover plate, and the fastening bolts are respectively screwed, and the inner end of each fastening bolt is screwed and locked with the front side of the semicircular clamping plate, so that the two semicircular rubber pads are respectively pressed against the upper and lower surfaces of the graphite electrode, thereby increasing the stability of the graphite electrode when placed;

[0029] 2. In the present invention, the motor shaft of the sliding motor drives the lead screw to rotate synchronously, and then drives the wire drum to rotate in coordination with the spiral, drives the limit slide cylinder to slide backward along the limit slide rod, drives the cross plate and the graphite electrode to move backward to the bottom of the flat-head grinding disc; the hydraulic rod of the hydraulic cylinder drives the hydraulic connecting block and the semicircular clamping plate to rise slowly, drives the square positioning rod to slide upward along the square positioning cylinder, drives the graphite electrode to slide upward and rise, and drives the two ends of the graphite electrode to slowly perform grinding operations upward;

[0030] 3. In the present invention, a distance sensor is provided at the top of the inner side of the L-shaped plate, and the distance sensor is used to detect whether the graphite electrode is centered. When the distances detected by the distance sensors on both sides are not equal, the longitudinal plate is driven by a linear motor for adjustment without manual centering.

[0031] In summary, the present invention solves the problem of inconvenient processing of graphite electrode flat heads through the coordinated use of various mechanisms, and the overall structural design is compact, which facilitates timely adjustment of the spacing of the grinding discs according to the length of the graphite electrode, increases the stability of the fixation during graphite electrode processing, facilitates multi-directional adjustment of the position of the graphite electrode, and further improves the efficiency of graphite electrode flat head processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 It is a front view schematic diagram of the present invention;

[0034] Figure 2 It is a front cross-sectional schematic diagram of the present invention;

[0035] Figure 3 It is a top cross-sectional schematic diagram of the sliding mechanism of the present invention;

[0036] Figure 4 It is a left side cross-sectional schematic diagram of the lifting mechanism of the present invention;

[0037] Figure 5 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0038] Figure 6 It is a schematic diagram of the method of using the present invention;

[0039] Serial numbers in the figure: bottom plate 1, L-shaped plate 11, side plate 12, linkage shaft 13, flat grinding disc 14, square groove 15, square rod 16, flange ring 17, I-shaped shaft 18, screw 19, threaded cylinder 110, drive motor 2, drive gear 21, bearing seat 22, drive shaft 23, driven gear 24, driving pulley 25, driven pulley 26, drive belt 27, cross plate 3, limit slide rod 31, limit slide cylinder 32, sliding motor 33, lead screw 34, wire cylinder 35, semicircular clamping plate 4, graphite electrode 41, hydraulic cylinder 42, square positioning cylinder 43, positioning block 44, square positioning rod 45, semicircular cover plate 46, semicircular rubber pad 47, fastening bolt 48, longitudinal plate 49, linear motor 50, slide rail 51, limit switch 52, distance sensor 53. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Embodiment 1: This embodiment provides a graphite electrode flat head device, see Figure 1-5 Specifically, it includes a bottom plate 1, a sliding mechanism, a lifting mechanism, and a driving mechanism. The bottom plate 1 is a horizontally placed rectangular plate. A horizontally placed horizontal plate 3 is provided in the middle of the top surface of the bottom plate 1. The bottom surface of the horizontal plate 3 is connected to the bottom plate 1 through a sliding mechanism. A horizontally placed semicircular card plate 4 is provided above the horizontal plate 3. A horizontally placed graphite electrode 41 is provided in the semicircular card plate 4, and the horizontal plate 3 is connected to the semicircular card plate 4 through a lifting mechanism.

[0042] A pair of symmetrically fixed L-shaped plates 11 are provided on both sides of the top surface of the base plate 1, and a vertically fixed side plate 12 is provided on the outer side of the top surface of each L-shaped plate 11. A through-fixed linkage bearing is provided in the middle of each side plate 12, and a horizontally penetrating linkage shaft 13 is inserted in each linkage bearing. A flat-head grinding disc 14 is provided at the inner end of each linkage shaft 13, and the bottom surface of the base plate 1 is connected to the two linkage shafts 13 respectively through a driving mechanism.

[0043] In the present invention, the sliding mechanism includes a longitudinal sliding mechanism and a transverse sliding mechanism, the longitudinal sliding mechanism includes a longitudinal plate 49 and a longitudinal plate driving device, the front and rear sides of the top surface of the bottom plate 1 are both provided with slide rails 51 perpendicular to the length direction of the bottom plate 1, the lower end of the longitudinal plate 49 is provided with a slide table matched with the slide rails, the longitudinal plate driving device includes a linear motor 50, the linear motor 50 is fixedly arranged on the left side of the top surface of the bottom plate 1, and the output end of the linear motor 50 is fixedly connected to the longitudinal plate 49;

[0044] The transverse sliding mechanism includes a sliding motor 33 and a lead screw 34. A first bearing is provided in the middle of the front side of the top surface of the longitudinal plate 49, and a sliding motor 33 is provided in the middle of the rear side of the top surface of the longitudinal plate 49. The model of the sliding motor 33 is YX3-112M-4. A coaxially connected lead screw 34 is provided at the end of the motor shaft of the sliding motor 33, and the front end of the lead screw 34 is inserted in the first bearing. A pair of spirally connected wire tubes 35 are sleeved on the lead screw 34, and the two wire tubes 35 are respectively fixed to the middle of the front and rear sides of the bottom surface of the transverse plate 3.

[0045] A pair of longitudinally parallel limiting slide bars 31 are provided on the top surface of the longitudinal plate 49 on both sides of the transverse plate 3. Trapezoidal fixing blocks are provided at the front and rear ends of each limiting slide bar 31. Each trapezoidal fixing block is fixedly connected to the top surface of the longitudinal plate 49. Limiting slide cylinders 32 are provided at the corners of the two side surfaces of the transverse plate 3. Each limiting slide cylinder 32 is slidably sleeved on the corresponding limiting slide bar 31. The motor shaft of the sliding motor 33 drives the lead screw 34 to rotate synchronously, thereby driving the wire cylinder 35 to rotate in coordination with the spiral, driving the limiting slide cylinder 32 to slide backward along the limiting slide bar 31, which facilitates the movement of the transverse plate 3 and the graphite electrode 41 backward to the bottom of the flat-head grinding disc 14.

[0046] The limit switch 52 is arranged on the limit slide bar 31 , and the position of the limit switch 52 satisfies that when the limit slide cylinder 32 contacts the limit switch 52 , the center of the semicircular clamping plate 4 and the center of the flat grinding disc 14 are in the same vertical plane.

[0047] A distance sensor 53 is provided at the top of the inner side surface of the L-shaped plate 11. The height of the distance sensor 53 is the same as the center of the graphite electrode in the non-lifted state. The model of the distance sensor is PRD12-8DN2. The distance sensor is located directly below the flat-head grinding disc 14. When the cross plate 3 drives the graphite electrode 41 to move backward, when the limit slide 32 hits the limit switch 52, the distance sensor is just aligned with the center position of the graphite electrode, and the graphite electrode 41 is directly below the two flat-head grinding discs 14; the distance sensors 53 on both sides of the graphite electrode respectively detect the distance from the center of the two ends of the graphite electrode to the flat-head grinding discs 14 on both sides. When the distances detected by the distance sensors 53 on both sides are not equal, the linear motor 50 drives the longitudinal plate 49 to perform fine adjustment until the graphite electrode is in the middle position of the distance sensors 53 on both sides.

[0048] In the present invention, the lifting mechanism includes a hydraulic cylinder 42 and a square positioning rod 45. A vertically fixed hydraulic cylinder 42 is provided in the middle of the top surface of the horizontal plate 3. The model of the hydraulic cylinder 42 is LA150. A hydraulic connecting block is provided at the end of the hydraulic rod of the hydraulic cylinder 42. The hydraulic connecting block is fixed to the middle of the bottom surface of the semicircular clamping plate 4. Positioning blocks 44 are provided at the four corners of the bottom surface of the semicircular clamping plate 4. The bottom surface of each positioning block 44 is provided with a square positioning rod 45. Square positioning tubes 43 are provided at the four corners of the top surface of the horizontal plate 3. The bottom end of each square positioning rod 45 is slidably inserted in the corresponding square positioning tube 43; the hydraulic rod of the hydraulic cylinder 42 drives the hydraulic connecting block and the semicircular clamping plate 4 to rise slowly, drives the square positioning rod 45 to slide upward along the square positioning tube 43, and drives the graphite electrode 41 to slide upward and rise, which is convenient for driving the two ends of the graphite electrode 41 to slowly grind upward.

[0049] In the present invention, a square groove 15 is provided at the inner end of the linkage shaft 13, a square rod 16 is provided at the middle of the outer side surface of the flat-head grinding disc 14, and the square rod 16 is slidably inserted in the square groove 15; a flange ring 17 is sleeved at the middle of the linkage shaft 13 on the inner side of the side plate 12, and I-shaped shafts 18 for rotational connection are evenly arranged on the flange ring 17, and a screw 19 is provided at the outer end of each I-shaped shaft 18, and a threaded barrel 110 is evenly arranged at the middle of the outer side surface of the flat-head grinding disc 14 on the outer side of the square rod 16, and the outer end of each screw 19 is spirally inserted in the corresponding threaded barrel 110; according to the length of the graphite electrode 41, the spacing between the two flat-head grinding discs 14 is adjusted, and the screw 19 is driven to rotate in coordination with the threaded barrel 110 by rotating the I-shaped shaft 18, thereby driving the square rod 16 to slide outward or inward along the square groove 15, thereby changing the spacing between the two flat-head grinding discs 14.

[0050] In the present invention, the driving mechanism includes a driving shaft 23 and a pair of driving belts 27. A pair of bearing seats 22 are provided in the middle of both sides of the bottom surface of the base plate 1. A driving bearing is provided in each bearing seat 22. A horizontally placed driving shaft 23 is provided on the bottom surface of the base plate 1. Both ends of the driving shaft 23 are respectively inserted into the corresponding driving bearings. A driving pulley 25 is provided at both ends of the driving shaft 23 on the outside of the base plate 1. A driven pulley 26 is provided at the outer end of each linkage shaft 13. Both ends of each driving belt 27 are respectively provided on the corresponding driving pulley 25 and the driven pulley 26. Support legs are provided at the four corners of the bottom surface of the base plate 1. A rectangular groove is provided in the middle of the bottom surface of the plate 1, and a driving motor 2 is provided in the rectangular groove. The model of the driving motor 2 is YE2-80M2-4. A driving gear 21 is provided at the end of the motor shaft of the driving motor 2, and a driven gear 24 is sleeved in the middle of the driving shaft 23, and the driving gear 21 is meshed and connected with the driven gear 24; the motor shaft of the driving motor 2 drives the driving gear 21 to rotate synchronously, and the meshing drives the driven gear 24 and the driving shaft 23 to rotate synchronously, and drives the driving pulleys 25 on both sides to rotate synchronously, and drives the corresponding driven pulleys 26 and the linkage shaft 13 to rotate synchronously through the driving belt 27, thereby driving the two flat-head grinding discs 14 to rotate at high speed.

[0051] Embodiment 2: In embodiment 1, there is still the problem that the graphite electrode is not firmly fixed during processing. Therefore, based on embodiment 1, this embodiment also includes:

[0052] In the present invention, a semicircular cover plate 46 with a movable hinge is provided on the rear side of the top surface of the semicircular clamping plate 4, and semicircular rubber pads 47 are provided on the inner walls of the semicircular cover plate 46 and the semicircular clamping plate 4, and the two semicircular rubber pads 47 are respectively pressed against the upper and lower surfaces of the graphite electrode 41, and a plurality of spirally penetrated fastening bolts 48 are evenly distributed on the front side of the semicircular cover plate 46, and the inner end of each fastening bolt 48 is spirally locked with the front side of the semicircular clamping plate 4; the graphite electrode 41 to be polished flat is placed centrally on the semicircular clamping plate 4, the semicircular cover plate 46 is covered, and the fastening bolts 48 are respectively screwed, and the inner end of each fastening bolt 48 is spirally locked with the front side of the semicircular clamping plate 4, so that the two semicircular rubber pads 47 are respectively pressed against the upper and lower surfaces of the graphite electrode 41, thereby increasing the stability of the graphite electrode 41 when placed.

[0053] Example 3: See Figure 6 In this embodiment, the present invention also proposes a method for using a graphite electrode flat head device, comprising the following steps:

[0054] Step 1: The driving motor 2, the sliding motor 33, the linear motor 50, and the hydraulic cylinder 42 are electrically connected to the external power supply through power lines, and the spacing between the two flat-head grinding discs 14 is adjusted according to the length of the graphite electrode 41. The screw 19 is driven to rotate in coordination with the threaded cylinder 110 by rotating the I-shaft 18, thereby driving the square rod 16 to slide outward or inward along the square groove 15, thereby changing the spacing between the two flat-head grinding discs 14;

[0055] Step 2: Place the graphite electrode 41 to be polished flat in the center of the semicircular clamping plate 4, cover it with the semicircular cover plate 46, and screw the fastening bolts 48 respectively. The inner end of each fastening bolt 48 is screwed and locked with the front side of the semicircular clamping plate 4, so that the two semicircular rubber pads 47 are respectively pressed against the upper and lower surfaces of the graphite electrode 41, thereby increasing the stability of the graphite electrode 41 when placed;

[0056] Step 3, start the driving motor 2, the motor shaft of the driving motor 2 drives the driving gear 21 to rotate synchronously, meshing and driving the driven gear 24 and the driving shaft 23 to rotate synchronously, driving the driving pulleys 25 on both sides to rotate synchronously, and driving the corresponding driven pulleys 26 and the linkage shaft 13 to rotate synchronously through the driving belt 27, thereby driving the two flat head grinding discs 14 to rotate at high speed;

[0057] Step 4, start the sliding motor 33, the motor shaft of the sliding motor 33 drives the lead screw 34 to rotate synchronously, and then drives the wire drum 35 to rotate in coordination with the spiral, and drives the limit slide 32 to slide backward along the limit slide rod 31. When the limit slide 32 hits the limit switch, the graphite electrode is located directly below the flat head grinding disc 14;

[0058] Step 5: Use distance sensors to detect the distances from the centers of both ends of the graphite electrode to the flat-head grinding discs 14 on both sides. When the values ​​detected by the distance sensors on both sides are not equal, use the linear motor 50 to fine-tune the longitudinal plate 49 so that the graphite electrode is in the middle of the two flat-head grinding discs.

[0059] Step six, start the hydraulic cylinder 42, the hydraulic rod of the hydraulic cylinder 42 drives the hydraulic connecting block and the semicircular clamping plate 4 to rise slowly, drives the square positioning rod 45 to slide upward along the square positioning cylinder 43, drives the graphite electrode 41 to slide upward and rise, and due to the high-speed rotation of the flat-head grinding disc 14, drives the two ends of the graphite electrode 41 to slowly grind upward.

[0060] The present invention solves the problem of inconvenient graphite electrode flat head processing through the coordinated use of various mechanisms, and the overall structural design is compact, which is convenient for timely adjusting the spacing of the grinding discs according to the length of the graphite electrode, increases the stability of the fixation during graphite electrode processing, facilitates multi-directional adjustment of the graphite electrode position, and further improves the efficiency of graphite electrode flat head processing.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A graphite electrode flat head device, comprising a base plate (1), a sliding mechanism, a lifting mechanism, and a driving mechanism, characterized in that: The bottom plate (1) is in the shape of a rectangular plate placed horizontally, a horizontally placed horizontal plate (3) is provided in the middle of the top surface of the bottom plate (1), the bottom surface of the horizontal plate (3) is connected to the bottom plate (1) via a sliding mechanism, a horizontally placed semicircular clamping plate (4) is provided above the horizontal plate (3), a horizontally placed graphite electrode (41) is provided inside the semicircular clamping plate (4), and the horizontal plate (3) is connected to the semicircular clamping plate (4) via a lifting mechanism; A pair of symmetrically fixed L-shaped plates (11) are provided on both sides of the top surface of the bottom plate (1), a vertically fixed side plate (12) is provided on the outer side of the top surface of each L-shaped plate (11), a through-fixed linkage bearing is provided in the middle of each side plate (12), a horizontally through-piercing linkage shaft (13) is inserted into each linkage bearing, a flat grinding disc (14) is provided at the inner end of each linkage shaft (13), and the bottom surface of the bottom plate (1) is respectively connected to the two linkage shafts (13) through a driving mechanism; The sliding mechanism comprises a longitudinal sliding mechanism and a transverse sliding mechanism, the longitudinal sliding mechanism comprises a longitudinal plate (49) and a longitudinal plate driving device, the front and rear sides of the top surface of the bottom plate (1) are both provided with slide rails (51) perpendicular to the length direction of the bottom plate (1), the lower end of the longitudinal plate (49) is provided with a slide table matched with the slide rails, the longitudinal plate driving device comprises a linear motor (50), the linear motor (50) is fixedly arranged on the left side of the top surface of the bottom plate (1), and the output end of the linear motor (50) is fixedly connected to the longitudinal plate (49); The lateral sliding mechanism comprises a sliding motor (33) and a lead screw (34); a first bearing is provided at the middle of the front side of the top surface of the longitudinal plate (49); a sliding motor (33) is provided at the middle of the rear side of the top surface of the longitudinal plate (49); a coaxially connected lead screw (34) is provided at the motor shaft end of the sliding motor (33); and the front end of the lead screw (34) is inserted into the first bearing; a pair of spirally connected wire drums (35) are sleeved on the lead screw (34); the two wire drums (35) are respectively fixed to the middle of the front and rear sides of the bottom surface of the transverse plate (3); the L-shaped plate (11) is within the movement stroke of the transverse plate (3); and the inner side surface of the L-shaped plate (11) is provided with a distance sensor (53); A pair of longitudinally parallel limit slide bars (31) are provided on both sides of the transverse plate (3) on the top surface of the longitudinal plate (49), each limit slide bar (31) is provided with a trapezoidal fixing block at both ends, each of the trapezoidal fixing blocks is fixedly connected to the top surface of the longitudinal plate (49), and limit slide cylinders (32) are provided at the corners of the two side surfaces of the transverse plate (3), each of the limit slide cylinders (32) is slidably sleeved on the corresponding limit slide bar (31), and a limit switch (52) is provided on the limit slide bar (31); A square groove (15) is formed at the inner end of the linkage shaft (13); a square rod (16) is formed at the middle of the outer side surface of the flat-head grinding disc (14); and the square rod (16) is slidably inserted into the square groove (15); A flange ring (17) is sleeved on the middle of the linkage shaft (13) on the inner side of the side plate (12), and rotatably connected I-shaped shafts (18) are evenly distributed on the flange ring (17), and a screw rod (19) is provided at the outer end of each I-shaped shaft (18). A threaded barrel (110) is evenly distributed on the outer side of the square rod (16) and at the middle of the outer side surface of the flat-head grinding disc (14), and the outer end of each screw rod (19) is spirally inserted in the corresponding threaded barrel (110); The driving mechanism comprises a driving shaft (23) and a pair of driving belts (27). A pair of bearing seats (22) are provided at the middle of both sides of the bottom surface of the base plate (1). Each of the bearing seats (22) is provided with a driving bearing. A transversely placed driving shaft (23) is provided on the bottom surface of the base plate (1). Both ends of the driving shaft (23) are respectively inserted into corresponding driving bearings. A driving pulley (25) is sleeved on both ends of the driving shaft (23) on the outer side of the base plate (1). A driven pulley (26) is sleeved on the outer end of each linkage shaft (13). Both ends of each driving belt (27) are respectively sleeved on the corresponding driving pulley (25) and the driven pulley (26). Support legs are provided at the four corners of the bottom surface of the bottom plate (1), a rectangular groove is provided in the middle of the bottom surface of the bottom plate (1), a driving motor (2) is provided in the rectangular groove, a driving gear (21) is provided at the end of the motor shaft of the driving motor (2), a driven gear (24) is sleeved on the middle of the driving shaft (23), and the driving gear (21) is meshingly connected with the driven gear (24).

2. A graphite electrode flat head device according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder (42) and a square positioning rod (45); a hydraulic cylinder (42) fixed vertically is provided at the middle of the top surface of the horizontal plate (3); a hydraulic connecting block is provided at the end of the hydraulic rod of the hydraulic cylinder (42); the hydraulic connecting block is fixed to the middle of the bottom surface of the semicircular clamping plate (4); positioning blocks (44) are provided at the four corners of the bottom surface of the semicircular clamping plate (4); a square positioning rod (45) is provided at the bottom surface of each positioning block (44); a square positioning tube (43) is provided at the four corners of the top surface of the horizontal plate (3); and the bottom end of each square positioning rod (45) is slidably inserted in the corresponding square positioning tube (43).

3. A graphite electrode flat head device according to claim 2, characterized in that: A semicircular cover plate (46) is provided on the rear side of the top surface of the semicircular clamping plate (4), and semicircular rubber pads (47) are provided on the inner walls of the semicircular cover plate (46) and the semicircular clamping plate (4), and the two semicircular rubber pads (47) are respectively pressed against the upper and lower surfaces of the graphite electrode (41), and a plurality of spirally penetrating fastening bolts (48) are arranged on the front side of the semicircular cover plate (46), and the inner end of each of the fastening bolts (48) is spirally locked with the front side of the semicircular clamping plate (4).

4. The method for using a graphite electrode flat head device according to claim 3, characterized in that: The following steps are involved: Step 1: The driving motor (2), the sliding motor (33), the linear motor (50), and the hydraulic cylinder (42) are electrically connected to an external power supply through power lines, respectively, and the spacing between the two flat-head grinding discs (14) is adjusted according to the length of the graphite electrode (41). The screw (19) is driven to rotate in coordination with the threaded cylinder (110) by rotating the I-shaft (18), thereby driving the square rod (16) to slide outward or inward along the square groove (15), thereby changing the spacing between the two flat-head grinding discs (14); Step 2: Place the graphite electrode (41) to be polished flat at the center on the semicircular clamping plate (4), cover it with the semicircular cover plate (46), and screw the fastening bolts (48) respectively. The inner end of each fastening bolt (48) is screwed and locked with the front side of the semicircular clamping plate (4), so that the two semicircular rubber pads (47) are respectively pressed against the upper and lower surfaces of the graphite electrode (41), thereby increasing the stability of the graphite electrode (41) when it is placed; Step 3, starting the driving motor (2), the motor shaft of the driving motor (2) drives the driving gear (21) to rotate synchronously, meshing and driving the driven gear (24) and the driving shaft (23) to rotate synchronously, driving the driving pulleys (25) on both sides to rotate synchronously, and driving the corresponding driven pulleys (26) and the linkage shaft (13) to rotate synchronously through the driving belt (27), thereby driving the two flat-head grinding discs (14) to rotate at high speed; Step 4, start the sliding motor (33), the motor shaft of the sliding motor (33) drives the lead screw (34) to rotate synchronously, and then drives the wire drum (35) to rotate in coordination with the spiral, drives the limit slide cylinder (32) to slide backward along the limit slide rod (31), drives the cross plate (3) and the graphite electrode (41) to move backward, and when the limit slide cylinder (32) hits the limit switch, the graphite electrode is located directly below the flat head grinding disc (14); Step 5, using distance sensors to detect the distances from the centers of both ends of the graphite electrode to the flat-head grinding discs (14) on both sides. When the values ​​detected by the distance sensors on both sides are not equal, the longitudinal plate (49) is fine-tuned by a linear motor (50) so that the graphite electrode is located in the middle of the two flat-head grinding discs. Step 6, start the hydraulic cylinder (42), the hydraulic rod of the hydraulic cylinder (42) drives the hydraulic connecting block and the semicircular clamping plate (4) to slowly rise, drives the square positioning rod (45) to slide upward along the square positioning cylinder (43), drives the graphite electrode (41) to slide upward and rise, and due to the high-speed rotation of the flat-head grinding disc (14), drives the two ends of the graphite electrode (41) to slowly grind upward.

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