Automatic grinding machine for root of die assembly seam of wind power blade

Abstract

The invention relates to a wind power blade die closing seam root automatic polisher which comprises a rack and a polishing system, the rack comprises a cross beam, a cross beam supporting leg and a supporting leg support from top to bottom, the cross beam supporting leg and the supporting leg support are connected through a quick connection clamp, the polishing system comprises an X-axis unit, a Z-axis unit, a Y-axis unit and an electric cabinet, the X-axis unit is arranged to be transversely and slidably installed on the cross beam, and the Z-axis unit is arranged to be transversely and slidably installed on the Z-axis unit; the Z-axis unit is arranged on the X-axis unit in a manner of being capable of vertically sliding; the Y-axis unit comprises a Y-axis rack, a grinding motor, a grinding roller housing, a grinding roller and a belt; the Y-axis rack is arranged on the Z-axis unit in a longitudinal sliding manner; the grinding motor is arranged on the Y-axis rack through a motor mounting seat; the grinding roller housing is arranged below the grinding motor and is arranged on the motor mounting seat; the grinding efficiency is improved, the grinding consistency is high, the cost is optimized, and the safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade production equipment, and particularly to an automatic grinding machine for the root of the mold joint of wind turbine blades. Background Art

[0002] Wind turbine blades are formed by combining two prefabricated half blades into a whole blade. The joint parts of the two prefabricated halves (commonly known as PS and SS) to be combined and bonded are manually hand-laid, with a relatively large height error. Before the two prefabricated halves are combined and bonded, the higher hand-laid parts need to be cut flat.

[0003] Currently, in the industry, basically, a hand-held angle grinder is used for cutting manually. The cutting time is long, the labor intensity is high, the pollution is serious, which is not good for the health of workers, and the product quality is not easy to control. Summary of the Invention

[0004] To solve the above problems of the prior art, it would be advantageous for the present invention to provide an automatic grinding machine for the root of the mold joint of wind turbine blades that can be hoisted, moved, and installed on the flange edge to be cut, and can automatically grind the higher hand-laid parts of the prefabricated halves.

[0005] To achieve the above object, an automatic grinding machine for the root of the mold joint of wind turbine blades is characterized by comprising: A frame, which sequentially includes a cross beam with a lifting point thereon, a pair of cross beam legs, and a pair of leg brackets adapted to be welded and fixed to one side of a wind turbine blade mold from top to bottom. Among them, the cross beam legs and the leg brackets are connected by quick-release clamps; A grinding system, which is configured as a three-axis linkage system and includes an X-axis unit, a Z-axis unit, a Y-axis unit, and an electric control box. Among them, the X-axis unit is arranged to be slidably mounted on the cross beam horizontally, the Z-axis unit is arranged to be slidably mounted on the X-axis unit vertically, the Y-axis unit includes a Y-axis frame arranged to be slidably mounted on the Z-axis unit longitudinally, a grinding motor mounted on the Y-axis frame via a motor mounting seat, a grinding roller housing mounted on the motor mounting seat below the grinding motor, a grinding roller mounted on the grinding roller housing via a grinding roller bearing, and a belt drivingly connecting the grinding motor and the grinding roller. The electric control box is mounted on the X-axis unit.

[0006] In the present invention, lifting points are provided on the frame, so that the automatic grinding machine for the root of the wind turbine blade mold joint can be lifted and moved, and can be lifted by a crane to the flange edge that needs to be cut; through the split design of the frame, the leg brackets located below can be welded to one side of the wind turbine blade mold, so that when grinding is required, the other parts of the automatic grinding machine for the root of the wind turbine blade mold joint can be moved above the leg brackets by hanging with a crane, and the crossbeam leg and the leg bracket can be quickly connected through a quick clamp; through the above-mentioned three-axis linkage structure setting of the grinding system, not only can the grinding be smoothly realized, but also the structure is stable and the movement of each axis is convenient.

[0007] Further, the X-axis unit includes a pair of X-axis slide rails provided on the crossbeam, an X-axis rack provided on the crossbeam and located between the pair of X-axis slide rails, an X-axis bracket with an X-axis slider engaged with the X-axis slide rails, an X-axis drive mechanism installed on the X-axis bracket, and a Z-axis bracket installed on the X-axis bracket. Among them, the X-axis drive mechanism includes a reducer and an X-axis motor installed on the reducer. The reducer is installed on the X-axis bracket and has a drive gear meshing with the X-axis rack; the electric control box is installed on the X-axis bracket through an electric control box bracket.

[0008] Through the above structure setting, the X-axis unit can move integrally in the X-axis direction efficiently and stably under the drive of the X-axis motor and through the cooperation of the gear and rack.

[0009] Still further, the Z-axis unit includes a Z-axis mounting frame, a Z-axis sliding frame, and a Z-axis motor. Among them, one side of the Z-axis mounting frame is fixed to the Z-axis bracket, and a pair of Z-axis slide rails, a Z-axis lead screw located between the pair of Z-axis slide rails, and the above-mentioned Z-axis motor drivingly connected to the Z-axis lead screw are provided on the other side thereof. A pair of Z-axis sliders slidably connected to the pair of Z-axis slide rails and a Z-axis nut screwed to the Z-axis lead screw are installed on one side of the Z-axis sliding frame.

[0010] Through the above structure setting, the Z-axis sliding frame of the Z-axis unit can move integrally in the Z-axis direction efficiently and stably under the drive of the Z-axis motor and through the cooperation of the lead screw and nut.

[0011] Even further, a pair of Y-axis slide rails, a Y-axis lead screw located in the middle of the pair of Y-axis slide rails, and a Y-axis motor drivingly connected to the Y-axis lead screw are installed on the other side of the Z-axis sliding frame. And a Y-axis sliding frame is installed on the Y-axis frame. A pair of Y-axis sliders slidably connected to the pair of Y-axis slide rails and a Y-axis nut screwed to the Y-axis lead screw are installed on the Y-axis sliding frame.

[0012] Through the above structure setting, the Y-axis frame can move in the Y-axis direction efficiently and stably through the cooperation of the lead screw and nut under the drive of the Y-axis motor.

[0013] Furthermore, the grinding system also includes a vacuum cleaner, which is installed on the X-axis bracket of the X-axis unit through a vacuum cleaner bracket. The Y-axis unit also includes a dust hood installed on the grinding roller cover shell. The vacuum cleaner is connected to the dust hood via a dust hose, and the grinding surface of the grinding roller is provided with an S-shaped groove.

[0014] Through the above-mentioned structural arrangement, the chips and dust discharged during the grinding process of the present invention can be sucked into the vacuum cleaner at any time, which greatly improves the working environment and reduces environmental pollution; the S-shaped grooves arranged on the grinding surface of the grinding roller are greatly beneficial for chip removal while grinding, thereby improving the grinding efficiency.

[0015] Furthermore, it also includes a detachable twist lock for auxiliary connection of the beam leg and the leg bracket, wherein the bottom of the beam leg has a bottom plate with an upper rectangular through hole, and the top of the leg bracket has a top plate with a lower rectangular through hole, the upper rectangular through hole and the lower rectangular through hole are arranged opposite to each other to form a rectangular through hole, the detachable twist lock is installed on the top plate of the leg bracket and includes a twist head with a special-shaped end that can be manually converted between a locked position and an unlocked position, in the locked position, the twist head passes through the rectangular through hole and its special-shaped end is located above the bottom plate of the beam leg and spans the rectangular through hole to lock the beam leg and the leg bracket together; in the unlocked position, the special-shaped end of the twist head faces the rectangular through hole so that the twist head can be detached from the bottom plate of the beam leg to unlock the lock of the beam leg and the leg bracket.

[0016] In the present invention, a detachable twist lock is provided to add a safety factor to the connection between the crossbeam legs and the leg brackets. Moreover, the detachable twist lock has a simple locking structure for the connection between the crossbeam legs and the leg brackets and is easy to operate.

[0017] Further, the detachable twist lock comprises: A fixed plate, on which a pair of supporting columns, a pair of limiting blocks and an intermediate block located between the pair of limiting blocks are arranged, and a pair of handle limiting spaces are formed between the intermediate block and the pair of limiting blocks; A floating plate, which is located on a pair of supporting columns of the fixed plate and is fastened to the fixed plate via fixing bolts penetrating the pair of supporting columns, the floating plate is provided with a central supporting column and a first central through hole penetrating the central supporting column and the floating plate, and a handle operating space is formed between the floating plate and the fixed plate; The twist head comprises a twist head column body penetrating through a first central through hole and the above-mentioned special-shaped end head supported above the central support column, wherein a limiting fastener is installed at a position of the twist head column body below the floating plate; The handle is pivotally mounted on the twist head cylindrical body below the limiting fastener so that, on the one hand, the handle can be rotated with the twist head in the handle operating space to achieve the position conversion of the special-shaped end of the twist head between the locked position and the unlocked position; on the other hand, the handle can be limited in one of the handle limiting spaces in the locked position and the unlocked position respectively.

[0018] Through the above-mentioned structural setting of the fixed plate, it can be fastened together with the floating plate to form a handle operating space and a pair of handle limiting spaces; through the above-mentioned structural setting of the floating plate, the twist head and the handle, the special-shaped end of the twist head can be switched between the locked position and the unlocked position; through the setting of the central support column on the floating plate and the installation of the upper limit fastener of the twist head columnar body under the floating plate, the upper and lower positions of the twist head are limited; through the pivotable installation structure of the handle relative to the twist head columnar body, the handle can drive the twist head to rotate and move in and out of the handle limiting space. The entire twist lock does not use any springs, gears and other structures, and has a simple structure, is detachable, and is easy to use.

[0019] Furthermore, a washer installation groove is provided on the twist head cylindrical body, and a stop washer for a round nut is installed in the washer installation groove, wherein the washer installation groove is located above the limiting fastener, and the limiting fastener is a round nut.

[0020] Through the above-mentioned structural arrangement, the twisting head cannot be detached upward from the floating plate.

[0021] Furthermore, the above-mentioned special-shaped end of the twist head has a rectangular locking portion. When the special-shaped end is in the locking position, the rectangular locking portion spans the rectangular through hole; when the special-shaped end is in the unlocking position, the rectangular locking portion faces the rectangular through hole.

[0022] Through the above-mentioned structural arrangement, in the locked position, the special-shaped end head is staggered relative to the rectangular through hole of the crossbeam leg and the leg bracket, so that it cannot detach from the rectangular through hole; and in the unlocked position, the rectangular locking part is opposite to the rectangular through hole, so that it can detach from the rectangular through hole, that is, the crossbeam leg located above can be free from the interference and locking of the special-shaped end head.

[0023] Furthermore, the central support column of the floating plate is constructed as a rectangular column that can pass through the rectangular through hole. When the special-shaped end head is in the locked position, the rectangular locking portion of the special-shaped end head crosses the rectangular column and is staggered by 90°; when the special-shaped end head is in the unlocked position, the rectangular locking portion is aligned with the rectangular column.

[0024] With the above structural arrangement, the special-shaped end of the swivel head can be supported on the central support column of the floating plate whether in the locked position or the unlocked position, and the central support column of the floating plate can enter the rectangular through-holes of the crossbeam leg and the leg bracket, so as to always maintain the support for the special-shaped end.

[0025] Furthermore, the swivel cylindrical body has a round nut mounting portion below the washer mounting groove. An external thread is provided on the outer circumferential surface of the round nut mounting portion to cooperate with the limit fastener. And, the swivel cylindrical body has a handle bearing portion below the round nut mounting portion, and the diameter of the handle bearing portion is relatively smaller than the diameter of the round nut mounting portion.

[0026] With the above structural arrangement, the limit fastener can pass through the handle bearing portion smoothly and be tightened onto the round nut mounting portion.

[0027] Still further, the handle has a handle mounting portion with flat surfaces on both sides at one end. A longitudinally extending handle operating slot is provided on the handle bearing portion of the swivel cylindrical body corresponding to the handle mounting portion. And, the handle mounting portion of the handle is mounted on the swivel cylindrical body via a connecting bolt within the handle operating slot. Thus, on the one hand, the handle can drive the swivel to rotate, and on the other hand, its handle mounting portion can pivot around the connecting bolt within the range of the handle operating slot, so that the handle pivots around the connecting bolt to move out of or into the handle limiting space on the fixed plate.

[0028] Another further, the floating plate is adapted to be detachably mounted on the bottom surface of the top plate of the leg bracket via fastening bolts below.

[0029] In the above locked position, the detachable twist lock is fixed to the top plate of the leg bracket through the floating plate on the one hand, and on the other hand, the special-shaped end spans the rectangular through-holes of the crossbeam leg and the leg bracket above, so that the crossbeam leg and the leg bracket are locked together.

[0030] Further, a pair of support columns of the fixed plate are arranged at intervals and a pair of column center holes penetrating the pair of support columns are provided thereon. The fixing bolts are internal hexagon socket head shoulder bolts. A pair of bolt fixing holes are correspondingly provided on the floating plate. The fixing bolts penetrate the column center holes from the bottom of the fixed plate and are fastened in the bolt fixing holes.

[0031] With the above structural arrangement, the floating plate and the fixed plate are fixedly connected together.

[0032] Still further, a second center through-hole is provided on the fixed plate corresponding to the first center through-hole. The second center through-hole is arranged to allow the swivel cylindrical body to pass through, and the second center through-hole is located between the pair of support columns.

[0033] With the arrangement of the second center through-hole on the fixed plate, the installation of the swivel is made more convenient.

[0034] These aspects and other aspects of the present invention will be more clearly described by referring to the embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The structure of the present invention and further objects and advantages will be better understood from the following description in conjunction with the drawings, in which like reference numerals identify like elements: Figure 1 is a perspective structural view of an automatic grinding machine for the root of the mold joint of a wind turbine blade according to a specific embodiment of the present invention; Figure 2 is Figure 1 a schematic view of the application state of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown; Figure 3 is Figure 1 a perspective structural view of the grinding system of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown; Figure 4 is Figure 3 a perspective exploded view of the grinding system shown; Figure 5 is Figure 3 an enlarged view of the core structure capable of realizing three-axis linkage of the grinding system shown; Figure 6 is Figure 4 a separate view of the grinding roller unit of the grinding system shown; Figure 7 is Figure 6 a perspective schematic view of the grinding roller unit shown from another angle; Figure 8 is Figure 7 a perspective exploded view of the grinding roller unit shown; Figure 9 is Figure 1 a front view of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown; Figure 10 is Figure 9 a side view of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown as seen from the right side; Figure 11 is Figure 10 an enlarged view of the circled part I; Figure 12 is Figure 9 a front view of the detachable twist lock used on the automatic grinding machine for the root of the mold joint of the wind turbine blade shown when it is in the locked state; Figure 13 is Figure 12 a perspective exploded view of the detachable twist lock shown; Figure 14 isFigure 12 Top view of the detachable twist lock shown Figure 15 is Figure 12 Front view of the detachable twist lock shown when it is in the unlocked state Figure 16 is Figure 9 Sectional view of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown along line B-B, in which the detachable twist lock is in the locked state Figure 17 is Figure 16 Enlarged view of the circled part II Figure 18 is also Figure 9 Sectional view of the automatic grinding machine for the root of the mold joint of the wind turbine blade shown along line B-B, but in this figure the detachable twist lock is in the unlocked state Figure 19 is Figure 18 Enlarged view of the circled part III Detailed implementation manners

[0036] The detailed implementation manners of the present invention will be described below with reference to the accompanying drawings

[0037] As Figures 1 to 8 shown, the automatic grinding machine 100 for the root of the mold joint of the wind turbine blade according to a specific embodiment of the present invention includes a frame and a grinding system, wherein The frame sequentially includes a cross beam 101 provided with a lifting point 111 thereon from top to bottom, a pair of cross beam legs 1, and a pair of leg brackets 2 adapted to be welded and fixed to one side of the wind turbine blade mold 300. Among them, the cross beam legs 1 and the leg brackets 2 are connected by a quick connector 3 The grinding system is configured as a three-axis linkage system and includes an X-axis unit 5, a Z-axis unit 6, a Y-axis unit 7, and an electric control box 8. Among them, the X-axis unit 5 is arranged to be slidably mounted on the cross beam 101 horizontally, the Z-axis unit 6 is arranged to be slidably mounted on the X-axis unit 5 vertically, the Y-axis unit 7 includes a Y-axis frame 71 arranged to be slidably mounted on the Z-axis unit 6 longitudinally and a grinding roller unit 70. The grinding roller unit 70 includes a grinding motor 73 mounted on the Y-axis frame 71 via a motor mounting seat 72, a grinding roller housing 74 mounted on the motor mounting seat 72 below the grinding motor 73, a grinding roller 76 mounted on the grinding roller housing 74 via a grinding roller bearing 75, and a belt (not shown in the figure, only the belt housing 77 and the synchronous pulley 78 for mounting the belt thereon) drivingly connecting the grinding motor 73 and the grinding roller 76. In this embodiment, the electric control box 8 is mounted on the X-axis unit 5

[0038] As Figure 1 , Figure 3 , Figure 4 andFigure 5 As shown, in the present embodiment, the X-axis unit 5 includes a pair of X-axis slide rails 51 disposed on the cross beam 101, an X-axis rack 53 disposed on the cross beam 101 and located between the pair of X-axis slide rails 51, an X-axis bracket 55 with an X-axis slider 551 engaged with the X-axis slide rails 51, an X-axis drive mechanism mounted on the X-axis bracket 55, and a Z-axis bracket 58 mounted on the X-axis bracket 55. Among them, the X-axis drive mechanism includes a speed reducer 57 and an X-axis motor 59 mounted on the speed reducer 57. The speed reducer 57 is mounted on the X-axis bracket 55 and has a drive gear 573 engaged with the X-axis rack 53 (see Figure 3 ); the electric control box 8 is mounted on the X-axis bracket 55 through an electric control box bracket 80.

[0039] It should be noted that, in the present embodiment, the grinding surface of the grinding roller 76 is provided with an S-shaped groove (not shown in the figure). Additionally, it should be noted that, in the present embodiment, the lifting point 111 may not be directly disposed on the cross beam 101, but directly mounted on the X-axis bracket 55 and then slidably mounted on the cross beam 101 via the X-axis bracket 55, as Figure 1 and Figure 5 shown.

[0040] As Figure 5 shown and referring to Figure 3 , in the present embodiment, the Z-axis unit 6 includes a Z-axis mounting frame 62, a Z-axis carriage 64, and a Z-axis motor 66. Among them, one side of the Z-axis mounting frame 62 is fixed to the Z-axis bracket 58 and a pair of Z-axis slide rails 621 are provided on the other side thereof, a Z-axis lead screw (not shown in the figure) located between the pair of Z-axis slide rails 621, and the above-mentioned Z-axis motor 66 drivingly connected to the Z-axis lead screw. One side of the Z-axis carriage 64 is provided with a pair of Z-axis sliders 641 slidably connected to the pair of Z-axis slide rails 621 and a Z-axis nut 65 screwed to the Z-axis lead screw. Through the above structural arrangement, the Z-axis carriage 64 of the Z-axis unit 6 can move efficiently and stably in the Z-axis direction along the Z-axis mounting frame 62 under the drive of the Z-axis motor 66 through the structural cooperation of the lead screw and nut.

[0041] Again, as Figure 5 shown and referring to Figure 3 , in the present embodiment, a pair of Y-axis slide rails 67 are mounted on the other side of the Z-axis carriage 64, a Y-axis lead screw 68 located in the middle of the pair of Y-axis slide rails 67, and a Y-axis motor 69 drivingly connected to the Y-axis lead screw 68. And, a Y-axis carriage 79 is mounted on the Y-axis frame 71, and a pair of Y-axis sliders 797 slidably connected to the pair of Y-axis slide rails 67 and a Y-axis nut 799 screwed to the Y-axis lead screw 68 are mounted on the Y-axis carriage 79. Through the above structural arrangement, the Y-axis unit 7 can move efficiently and stably in the Y-axis direction relative to the Z-axis carriage 64 under the drive of the Y-axis motor 69 through the structural cooperation of the lead screw and nut.

[0042] As Figure 3 and Figure 4 shown, in this embodiment, the grinding system further includes a vacuum cleaner 9, which is installed on the X-axis bracket 55 of the X-axis unit 5 through a vacuum cleaner bracket 90. The Y-axis unit 7 further includes a dust suction hood 749 installed on the grinding roll housing 74. The vacuum cleaner 9 is connected to the dust suction hood 749 via a dust suction hose (not shown in the figure). Through the above structural arrangement, the chips and dust discharged during the grinding process of the present invention can be sucked into the vacuum cleaner 9 at any time, greatly improving the working environment and reducing environmental pollution.

[0043] Compared with the traditional manual grinding production method, the core advantages of the above structure of the present invention include: 1) Efficiency improvement: continuous operation for 24 hours, with a speed 3-5 times that of manual work; 2) High consistency: eliminating manual errors and ensuring the stable quality of batch products; 3) Cost optimization: reducing manpower dependence and lowering the unit cost in the long term; 4) Safety: avoiding the risks of workers contacting dust, noise and mechanical injuries.

[0044] As Figures 9 to 19 shown and referring to Figure 1 and Figure 2 shown, in this embodiment, the connection between the crossbeam leg 1 and the leg bracket 2 of the automatic grinding machine 100 for the root of the wind turbine blade mold joint, in addition to using a quick clamp 3 for quick connection, also includes a detachable twist lock 4 for auxiliary connection between the crossbeam leg 1 and the leg bracket 2. As Figures 16 to 19 shown, the bottom of the crossbeam leg 1 has a bottom plate 10 with an upper rectangular through hole, and the top of the leg bracket 2 has a top plate 20 with a lower rectangular through hole. The upper rectangular through hole and the lower rectangular through hole are arranged opposite to each other to form a rectangular through hole 12 (see Figure 17 and Figure 19 ). The detachable twist lock 4 is installed on the top plate 20 of the leg bracket 2 and includes a twist head 45 that can be manually switched between a locked position (see Figure 17 ) and an unlocked position (see Figure 19 ) and has a special-shaped end 452. In the locked position, the twist head 45 passes through the rectangular through hole 12 and its special-shaped end 452 is located above the bottom plate 10 of the crossbeam leg 1 and spans the rectangular through hole 12 to lock the crossbeam leg 1 and the leg bracket 2 together; in the unlocked position, the special-shaped end 452 of the twist head 45 is aligned with the rectangular through hole 12 so that the twist head 45 can be disengaged from the bottom plate 10 of the crossbeam leg 1 to unlock the locking of the crossbeam leg 1 and the leg bracket 2. Specifically, in this embodiment, the way the twist head 45 disengages from the bottom plate 10 of the crossbeam leg 1 is by moving the crossbeam leg 1 upward so that the bottom plate 10 of the crossbeam leg 1 and the twist head 45 are disengaged from each other.

[0045] As Figure 10 andFigure 11 as shown and with reference to Figure 9 , in this embodiment, the quick clamp 3 includes a clamp body 30 mounted on one side of the top of the leg bracket 2, a rotatable clamp 31 provided on the clamp body 30, and a hook body 32 mounted on one side of the bottom of the crossbeam leg 1 and cooperating with the rotatable clamp 31. After the crossbeam leg 1 is placed on the leg bracket 2, by rotating the rotatable clamp 31 and lapping it on the hook body 3, the crossbeam leg 1 and the leg bracket 2 can be quickly fixed to each other. Since the quick clamp 3 is a standard part that can be purchased on the market and is not the focus of innovation of the present invention, its specific structure will not be described in detail here.

[0046] As Figures 12 to 15 shown, in this embodiment, the detachable twist lock 4 includes a fixing plate 41, a floating plate 43, a turning head 45 and a handle 47. Among them, a pair of support columns 412, a pair of limit blocks 414 and an intermediate stop block 416 located between the pair of limit blocks 414 are provided on the fixing plate 41, and a pair of handle limiting spaces 415 are formed between the intermediate stop block 416 and the pair of limit blocks 414; The floating plate 43 is located on a pair of support columns 412 of the fixing plate 41 and is fastened to the fixing plate 41 via a fixing bolt 42 passing through the pair of support columns 412. A central support column 432 and a first central through hole 430 penetrating the central support column 432 and the floating plate 43 are provided on the floating plate 43, and a handle operating space 44 is formed between the floating plate 43 and the fixing plate 41; The turning head 45 includes a turning head cylindrical body 450 installed through the first central through hole 430 and a special-shaped end 452 supported above the central support column 432. Among them, a limit fastener 46 is installed at the position of the turning head cylindrical body 450 below the floating plate 43; The handle 47 is pivotally installed on the turning head cylindrical body 450 below the limit fastener 46. Thus, on the one hand, the handle can drive the turning head 45 to rotate in the handle operating space 44 to realize the position conversion of the special-shaped end 452 between the locking position (see Figure 12 , Figure 14 , Figure 16 and Figure 17 ) and the unlocking position (see Figure 15 , Figure 18 and Figure 19 ), and on the other hand, the handle 47 can be limited in one of the handle limiting spaces 415 at the locking position and the unlocking position respectively. Specifically, in this embodiment, the special-shaped end 452 is in the left handle limiting space 415 at the locking position (as Figure 12 shown), and naturally in the right handle limiting space 415 at the unlocking position (as Figure 15 shown).

[0047] like Figure 13 , Figure 17 and Figure 19 As shown, a washer installation groove 451 is provided on the twist head cylindrical body 450, and a locking washer 461 for a round nut is installed in the washer installation groove 451. The washer installation groove 451 is located above the limiting fastener 46, and the limiting fastener 46 is a round nut.

[0048] like Figure 13 , Figure 14 As shown, the special-shaped end 452 has a rectangular locking portion 4520. Figure 16 and Figure 17 As shown, when the special-shaped end 452 is in the locking position, the rectangular locking portion 4520 is above the bottom plate 10 of the beam leg 1 and crosses the rectangular through hole 12, so as to be staggered relative to the rectangular through hole 12, so that it cannot be separated from the rectangular through hole 12, that is, the special-shaped end 452 forms interference with the bottom plate 10 of the beam leg 1; Figure 18 and Figure 19 When the special-shaped end 452 is in the unlocked position, the rectangular locking portion 4520 is opposite to the rectangular through hole 12 formed on the beam leg 1 and the leg bracket 2, so that it can be detached from the rectangular through hole 12. That is to say, in this case, the special-shaped end 452 no longer interferes with the beam leg 1.

[0049] like Figures 13 to 14 As shown, in this embodiment, the central support column 432 of the floating plate 43 is configured as a rectangular column that can pass through the rectangular through hole 12. When the special-shaped end 452 is in the locked position, the rectangular locking portion 4520 of the special-shaped end 452 crosses with the central support column 432 in the form of a rectangular column, thereby staggering by 90°; when the special-shaped end 452 is in the unlocked position, the rectangular locking portion 4520 thereof is aligned with the central support column 432 in the form of a rectangular column. With this structural arrangement, the special-shaped end 452 can be supported on the central support column 432 of the floating plate 43 regardless of whether it is in the locked position or the unlocked position.

[0050] It should be noted that Figure 9 An application scenario of the detachable twist lock of this embodiment is shown, which is applied to the crossbeam leg 1 and the leg support 2 of the automatic grinding machine 100 for the root of the die seam of a wind turbine blade, and is used to auxiliaryly connect the crossbeam leg 1 and the leg support 2 in addition to the quick clamp 3 for quickly connecting the crossbeam leg 1 and the leg support 2. Figure 16 and Figure 18As shown, the detachable twist lock 4 is installed on the top plate 20 of the leg support 2. Specifically, the floating plate 43 of the detachable twist lock 4 is installed below on the top plate 20 of the leg support 2 via fastening bolts (not shown in the figure). In the locked position, the central support column 432 of the floating plate 43 penetrates through the rectangular through-hole 12, and the special-shaped end 452 supported thereon is located above the bottom plate 10 of the crossbeam leg 1 and straddles the rectangular through-hole 12, thereby locking the crossbeam leg 1 and the leg support 2 together; in the unlocked position, the special-shaped end 452 is aligned with the rectangular through-hole 12, so that the special-shaped end 452 no longer interferes with the bottom plate 20 of the crossbeam leg 2, unlocking the locking of the crossbeam leg 1 and the leg support 2. That is to say, in this case, the crossbeam leg 1 can move upward to disengage from the locking with the leg support 2, or the floating plate 43 of the detachable twist lock 4 can be detached from the top plate 20 of the leg support 2, and then the entire detachable twist lock 4 can move downward to disengage from the rectangular through-hole 12, thereby unlocking the locking of the crossbeam leg 1 and the leg support 2.

[0051] As Figure 13 shown, in this embodiment, the turning head cylindrical body 450 has a round nut mounting portion 456 below the washer mounting groove 451. An external thread is provided on the outer circumferential surface of the round nut mounting portion 456 to cooperate with the limit fastener 46. And, the turning head cylindrical body 450 has a handle bearing portion 457 below the round nut mounting portion 456. The diameter of the handle bearing portion 457 is relatively smaller than the diameter of the round nut mounting portion 456, so that the limit fastener 46 can pass through the handle bearing portion 457 smoothly and be tightened onto the round nut mounting portion 456.

[0052] Again, as Figure 13 shown, in this embodiment, the handle 47 has a handle mounting portion 470 with flat surfaces on both sides at one end thereof. A longitudinally extending handle operating slot 4570 is provided on the handle bearing portion 457 of the turning head cylindrical body 450 corresponding to the handle mounting portion 470. And, the handle mounting portion 470 of the handle 47 is installed on the turning head cylindrical body 450 in the handle operating slot 4570 via a connecting bolt (not shown in the figure, but it passes through the bolt hole 475 on the handle 47 and the bolt hole 458 on the turning head 45). Thus, on the one hand, the handle 47 can drive the turning head 45 to rotate, and on the other hand, its handle mounting portion 470 can pivot around the connecting bolt within the range of the handle operating slot 4570, so that the handle 47 pivots around the connecting bolt to move out of or into the handle limiting space 415 on the fixing plate 41.

[0053] As Figure 17 and Figure 19As shown, in this embodiment, the floating plate 43 is adapted to be detachably fixed to the bottom surface of the lower one of a pair of locked workpieces. Specifically, the floating plate 43 is adapted to be detachably mounted on the top plate 20 of the leg bracket 2 from below via a fastening bolt (not shown in the figure) passing through the threaded hole 431 (see Figure 14 ) on it.

[0054] Again, as Figure 13 shown, in this embodiment, a pair of support columns 412 of the fixed plate 41 are arranged at intervals and are provided with a pair of column center holes 4120 penetrating through the pair of support columns 412. The fixing bolts 42 connecting the fixed plate 41 and the floating plate 43 are socket head cap shoulder bolts with internal hexagons. A pair of bolt fixing holes 434 are correspondingly provided on the floating plate 43. The fixing bolts 42 penetrate through the column center holes 4120 from the bottom of the fixed plate 41 and are fastened in the bolt fixing holes 434.

[0055] Again, as Figure 13 shown, in this embodiment, a second center through hole 410 is provided on the fixed plate 41 corresponding to the first center through hole 430. The second center through hole 410 is arranged to allow the torsion head cylindrical body 450 to pass through, and the second center through hole 410 is located between the pair of support columns 412. Through the setting of the second center through hole 410, the installation of the torsion head 45 is made more convenient.

[0056] The technical content and technical features of the present invention have been disclosed above. However, it can be understood that under the creative concept of the present invention, those skilled in the art can make various changes and improvements to the above structure, including combinations of the technical features separately disclosed or claimed here, and other combinations that obviously include these features. These deformations and / or combinations all fall within the technical field involved in the present invention and within the protection scope of the claims of the present invention.

Claims

1. An automatic grinding machine for the root of the mold seam of a wind turbine blade, characterized in that include: The frame includes, from top to bottom, a crossbeam with a suspension point, a pair of crossbeam legs, and a pair of leg brackets suitable for being welded and fixed on one side of a wind turbine blade mold, wherein the crossbeam legs and the leg brackets are connected by quick-connect clamps; The grinding system is constituted as a three-axis linkage system and includes an X-axis unit, a Z-axis unit, a Y-axis unit and an electric control box, wherein the X-axis unit is configured to be installed on the crossbeam in a transverse sliding manner, the Z-axis unit is configured to be installed on the X-axis unit in a vertical sliding manner, the Y-axis unit includes a Y-axis frame configured to be installed on the Z-axis unit in a longitudinal sliding manner, a grinding motor installed on the Y-axis frame via a motor mounting seat, a grinding roller cover installed on the motor mounting seat below the grinding motor, a grinding roller installed on the grinding roller cover via a grinding roller bearing, and a belt for transmitting and connecting the grinding motor and the grinding roller, and the electric control box is installed on the X-axis unit.

2. The wind turbine blade die seam root automatic grinding machine according to claim 1, characterized in that: The X-axis unit includes a pair of X-axis slide rails arranged on the crossbeam, an X-axis rack arranged on the crossbeam and located between the pair of X-axis slide rails, an X-axis bracket with an X-axis slider engaged with the X-axis slide rails, an X-axis drive mechanism installed on the X-axis bracket, and a Z-axis bracket installed on the X-axis bracket, wherein the X-axis drive mechanism includes a reducer and an X-axis motor installed on the reducer, the reducer is installed on the X-axis bracket and has a driving gear meshing with the X-axis rack; the electric control box is installed on the X-axis bracket through the electric control box bracket.

3. The automatic grinding machine for the root of the mold seam of a wind turbine blade according to claim 2, characterized in that: The Z-axis unit includes a Z-axis mounting frame, a Z-axis slide, and a Z-axis motor, wherein one side of the Z-axis mounting frame is fixed to the Z-axis bracket and a pair of Z-axis rails, a Z-axis screw rod located between the pair of Z-axis rails, and the Z-axis motor drivingly connected to the Z-axis screw rod are arranged on the other side of the Z-axis mounting frame, and a pair of Z-axis sliders slidably connected to the pair of Z-axis rails and a Z-axis nut threadedly connected to the Z-axis screw rod are installed on one side of the Z-axis slide.

4. The wind turbine blade die seam root automatic grinding machine according to claim 3, characterized in that: A pair of Y-axis rails, a Y-axis lead screw located in the middle of the pair of Y-axis rails, and a Y-axis motor driving the connected Y-axis lead screw are installed on the other side of the Z-axis slide. In addition, a Y-axis slide is installed on the Y-axis frame, and a pair of Y-axis sliders slidably connected to the pair of Y-axis rails and a Y-axis nut threadedly connected to the Y-axis lead screw are installed on the Y-axis slide.

5. The wind turbine blade die seam root automatic grinding machine according to claim 2, characterized in that: The grinding system also includes a vacuum cleaner, which is installed on the X-axis bracket of the X-axis unit through a vacuum cleaner bracket. The Y-axis unit also includes a dust hood installed on the grinding roller cover shell. The vacuum cleaner is connected to the dust hood via a dust hose, and the grinding surface of the grinding roller is provided with an S-shaped groove.

6. The automatic grinding machine for the root of the mold seam of a wind turbine blade according to any one of claims 1 to 5, characterized in that It also includes a detachable twist lock for auxiliary connection of the beam leg and the leg bracket, wherein the bottom of the beam leg has a bottom plate with an upper rectangular through hole, and the top of the leg bracket has a top plate with a lower rectangular through hole, the upper rectangular through hole and the lower rectangular through hole are arranged opposite to each other to form a rectangular through hole, the detachable twist lock is installed on the top plate of the leg bracket and includes a twist head with a special-shaped end that can be manually converted between a locked position and an unlocked position, in the locked position, the twist head passes through the rectangular through hole and its special-shaped end is located above the bottom plate of the beam leg and spans the rectangular through hole to lock the beam leg and the leg bracket together; in the unlocked position, the special-shaped end of the twist head faces the rectangular through hole so that the twist head can be detached from the bottom plate of the beam leg to unlock the lock of the beam leg and the leg bracket.

7. The wind turbine blade die seam root automatic grinding machine according to claim 6, characterized in that: The removable twist lock comprises: A fixed plate, on which a pair of supporting columns, a pair of limiting blocks and an intermediate block located between the pair of limiting blocks are arranged, and a pair of handle limiting spaces are formed between the intermediate block and the pair of limiting blocks; A floating plate, which is located on a pair of supporting columns of the fixed plate and is fastened to the fixed plate via fixing bolts penetrating the pair of supporting columns, the floating plate is provided with a central supporting column and a first central through hole penetrating the central supporting column and the floating plate, and a handle operating space is formed between the floating plate and the fixed plate; The twist head comprises a twist head column body penetrating through a first central through hole and the special-shaped end head supported above the central support column, wherein a limiting fastener is installed at a position of the twist head column body below the floating plate; The handle is pivotally mounted on the twist head cylindrical body below the limiting fastener so that, on the one hand, the handle can be rotated with the twist head in the handle operating space to achieve the position conversion of the special-shaped end between the locking position and the unlocking position; on the other hand, the handle can be limited in one of the handle limiting spaces in the locking position and the unlocking position respectively.

8. The wind turbine blade die seam root automatic grinding machine according to claim 7, characterized in that: A washer installation groove is provided on the twist head cylindrical body, and a stop washer for a round nut is installed in the washer installation groove, wherein the washer installation groove is located above the limiting fastener, and the limiting fastener is a round nut.

9. The wind turbine blade die seam root automatic grinding machine according to claim 8, characterized in that: The special-shaped end head has a rectangular locking portion. When the special-shaped end head is in the locking position, the rectangular locking portion spans the rectangular through hole; when the special-shaped end head is in the unlocking position, the rectangular locking portion faces the rectangular through hole.

10. The wind turbine blade die seam root automatic grinding machine according to claim 9, characterized in that: The central support column of the floating plate is constructed as a rectangular column that can pass through the rectangular through hole. When the special-shaped end head is in the locking position, the rectangular locking portion of the special-shaped end head crosses the rectangular column and is offset by 90°; when the special-shaped end head is in the unlocking position, the rectangular locking portion is aligned with the rectangular column.

11. The wind turbine blade die seam root automatic grinding machine according to claim 10, characterized in that: The twist head cylindrical body has a round nut mounting portion below the washer mounting groove, and an external thread is provided on the outer circumferential surface of the round nut mounting portion to cooperate with the limiting fastener, and the twist head cylindrical body has a handle bearing portion below the round nut mounting portion, and the diameter of the handle bearing portion is smaller than the diameter of the round nut mounting portion.

12. The wind turbine blade die seam root automatic grinding machine according to claim 11, characterized in that: The handle has a handle mounting portion with flat sides at one end, and a longitudinally extending handle operating slot is provided on the handle bearing portion of the twist head columnar body corresponding to the handle mounting portion, and the handle mounting portion of the handle is installed on the twist head columnar body via a connecting bolt in the handle operating slot, so that the handle can drive the twist head to rotate on the one hand, and on the other hand, the handle mounting portion can pivot around the connecting bolt within the range of the handle operating slot so that the handle can pivot around the connecting bolt to move out of or enter the handle limiting space on the fixing plate.

13. The automatic grinding machine for the root of the mold seam of a wind turbine blade according to claim 7, characterized in that: The floating plate is adapted to be detachably mounted on a bottom surface of the top plate of the leg bracket via fastening bolts.

14. The wind turbine blade die seam root automatic grinding machine according to claim 7, characterized in that: The pair of supporting columns of the fixed plate are arranged at intervals and are provided with a pair of column center holes penetrating the pair of supporting columns. The fixing bolts are hexagonal cup shoulder bolts. A pair of bolt fixing holes are correspondingly provided on the floating plate. The fixing bolts pass through the column center holes from the bottom of the fixed plate and are fastened in the bolt fixing holes.

15. The wind turbine blade die seam root automatic grinding machine according to claim 7, characterized in that: A second central through hole is arranged on the fixing plate corresponding to the first central through hole, the second central through hole is arranged to allow the twisting head column body to pass through, and the second central through hole is located between the pair of supporting columns.

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