Drilling device for wear-resisting piece preparation

Abstract

The invention relates to the technical field of wear-resisting piece machining, in particular to a drilling device for wear-resisting piece preparation, which comprises a [-shaped frame, an annular supporting plate, a clamping mechanism, a position adjusting mechanism, an intermittent rotating mechanism, a feeding mechanism, a discharging mechanism and a variable-pitch drilling mechanism. The clamping mechanism, the position adjusting mechanism, the intermittent rotating mechanism, the feeding mechanism, the discharging mechanism and the variable-pitch drilling mechanism are matched, continuous and automatic feeding and discharging can be achieved, an inner clamping plate, a front arc-shaped outer clamping plate and a rear arc-shaped outer clamping plate are adopted to conduct inner and outer clamping on the wear-resisting piece at the same time, and the situation that when drilling is conducted on the wear-resisting piece, the machining precision is high is effectively avoided. The problems that due to the fact that clamping is not stable, the position of the wear-resisting piece deviates, and the drilling quality is affected are solved, the front arc-shaped outer clamping plate, the rear arc-shaped outer clamping plate, the front automatic drilling device and the rear automatic drilling device can be controlled to be close to or away from each other, synchronous drilling is conducted on the multiple side positions of the wear-resisting piece, and the drilling efficiency and the drilling quality are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wear-resistant sheet processing, and particularly relates to a drilling device for preparing wear-resistant sheets. Background Art

[0002] Drilling of wear-resistant sheets is usually an operation carried out in industrial production for installing or fixing wear-resistant sheets. A wear-resistant sheet is a device used to reduce wear and is usually applied to equipment components that need to withstand a large amount of friction or wear. Drilling of wear-resistant sheets is usually for the convenience of replacement, improvement of stability, and optimization of design.

[0003] When the existing drilling equipment drills an arc-shaped wear-resistant sheet, it is not easy to firmly clamp it, and there may be a problem that the position of the wear-resistant sheet shifts during drilling, which affects the drilling quality. Moreover, it usually adopts the method of drilling in sequence, and the clamping work needs to be repeated many times, and the drilling efficiency needs to be improved. In addition, the clamping and drilling positions of the existing drilling equipment are not easy to adjust, and it is impossible to quickly and effectively carry out multi-directional drilling processing on the arc-shaped wear-resistant sheet. Summary of the Invention

[0004] Technical problems to be solved: A drilling device for preparing wear-resistant sheets provided by the present invention can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above object, the present invention adopts the following technical solutions. A drilling device for preparing wear-resistant sheets includes a U-shaped frame. An annular support plate is arranged inside the U-shaped frame. A clamping mechanism is jointly arranged on the U-shaped frame and the annular support plate. A position adjustment mechanism is arranged on the U-shaped frame at a position corresponding to the clamping mechanism. An intermittent rotation mechanism is jointly arranged on the U-shaped frame and the annular support plate. A feeding mechanism is arranged on the rear side wall of the U-shaped frame. A discharging mechanism is arranged on the U-shaped frame at a position corresponding to the annular support plate. A variable-distance drilling mechanism is also jointly arranged on the U-shaped frame and the annular support plate.

[0006] The clamping mechanism includes support shafts rotatably installed on the inner walls of the front and rear ends of the U-shaped frame. A triangular cam is fixedly sleeved in the middle of the support shaft. A plurality of arc-shaped through holes are evenly distributed in a circumferential manner on the outer wall of the annular support plate. Clamping parts are arranged on the annular support plate at positions corresponding to the plurality of arc-shaped through holes. A clamping part is provided with a clamping connection part. The intermittent rotation mechanism includes annular connecting plates installed at both the front and rear ends of the annular support plate. Circular connecting plates fixedly sleeved on the support shafts are rotatably installed on the inner walls of the annular connecting plates. A first rotating part is jointly arranged on the front and rear two circular connecting plates and the U-shaped frame. A second rotating part is jointly arranged on the front and rear two annular connecting plates and the U-shaped frame. The variable-distance drilling mechanism includes an arch-shaped slide rail installed on the inner wall of the right end of the U-shaped frame. An electric slider is installed on the arch-shaped slide rail. A variable-distance drilling part is arranged on the electric slider.

[0007] Preferably, the feeding mechanism includes a storage bin installed at the position of the rear end of the C-shaped frame corresponding to the annular support plate. A sector-shaped sliding hole is formed in both the storage bin and the C-shaped frame. Limiting baffles are installed on the inner walls at the left and right ends of the storage bin corresponding to the sector-shaped sliding hole. An arc-shaped material pushing plate is slidably installed in the sector-shaped sliding hole. Two rectangular blocking strips are installed at the front end of the arc-shaped material pushing plate. A sector-shaped connecting plate is installed at the rear end of the arc-shaped material pushing plate. A pneumatic push rod I is installed at the lower end of the storage bin through a mounting seat. The telescopic end of the pneumatic push rod I is fixedly connected to the sector-shaped connecting plate. A circular baffle plate with a material discharging notch is rotatably sleeved on the front side of the outer wall of the annular support plate. A semi-circular mounting plate fixedly connected to the C-shaped frame is installed at the front end of the circular baffle plate.

[0008] Preferably, the clamping part includes an inner clamping plate slidably arranged in the arc-shaped through hole. The inner clamping plate is composed of an arc-shaped clamping plate and a circular abutting plate. A plurality of circular avoidance holes distributed in a rectangular shape are formed on the outer wall of the arc-shaped clamping plate of the inner clamping plate. Arc-shaped support plates are installed on both side walls of the arc-shaped clamping plate of the inner clamping plate. A spring telescopic rod is installed through the outer wall of the arc-shaped support plate. The telescopic end of the spring telescopic rod is fixedly connected to the annular support plate. The circular abutting plate of the inner clamping plate is in rolling contact with the triangular cam. A T-shaped support rod I is installed on the outer wall of the arc-shaped support plate. Waist-shaped connecting rods are rotatably sleeved at both the front and rear ends of the horizontal section of the T-shaped support rod I. A T-shaped support rod II is installed on the inner wall of the annular support plate corresponding to the T-shaped support rod I. The front and rear ends of the horizontal section of the T-shaped support rod II are rotatably penetrated through the waist-shaped connecting rods.

[0009] Preferably, the clamping part further includes support connecting rods slidably penetrated through the annular support plate corresponding to the positions of a plurality of waist-shaped connecting rods. One ends of the support connecting rods close to the arc-shaped support plate are hinged to the ends of the waist-shaped connecting rods far from the T-shaped support rod I. A circular mounting plate is jointly installed at the outer ends of the front and rear support connecting rods on the same side outside the annular support plate. The circular mounting plate is connected to the annular support plate through a plurality of compression springs corresponding to the positions of the two support connecting rods. Installation sliders are slidably connected to the inner walls at the front and rear ends of the circular mounting plate through compression springs. Arc-shaped outer clamping plates are jointly installed between the two installation sliders on the same side in the front and rear.

[0010] Preferably, the clamping part includes front and rear mounting blocks installed at the opposite ends of the two circular mounting plates. A clamping group is arranged between the mounting blocks and the arc-shaped outer clamping plates. The clamping group includes rectangular mounting grooves formed at the ends of the mounting blocks and the arc-shaped outer clamping plates far from the annular support plate. Accommodation through holes communicating with the corresponding rectangular mounting grooves are formed at the opposite ends of the front and rear mounting blocks. An accommodation through hole communicating with the corresponding rectangular mounting groove is also formed at the front end of the rear arc-shaped outer clamping plate. An elastic clamping plate is installed at the rear end of the front arc-shaped outer clamping plate. Elastic clamping plates are also installed at the opposite ends of the front and rear arc-shaped outer clamping plates.

[0011] Preferably, the position adjusting mechanism includes two upper and lower position adjusting parts commonly arranged on the inner walls at the front and rear ends of the C-shaped frame. The position adjusting part includes a first support cross plate commonly installed on the inner walls at the front and rear ends of the C-shaped frame corresponding to the clamping group. A second support cross plate is also commonly and slidably installed on the inner walls at the front and rear ends of the C-shaped frame. The second support cross plate is slidably attached to the first support cross plate. Two front and rear kidney-shaped sliding holes one are opened on the first support cross plate. Two kidney-shaped sliding holes two distributed in an eight-shaped manner are opened on the second support cross plate. An electric telescopic rod one is commonly and slidably installed in the corresponding kidney-shaped sliding hole one and kidney-shaped sliding hole two through an installation sliding sleeve. One end side wall of the first support cross plate close to the corresponding rectangular mounting plate is installed with an electric telescopic rod two through a mounting seat. The telescopic end of the electric telescopic rod two is fixedly connected to the second support cross plate.

[0012] Preferably, the first rotating part includes an internal gear ring installed at the front end of the front circular connecting plate. A servo motor is installed at the front end of the C-shaped frame through a motor seat. The output shaft of the servo motor rotates through the C-shaped frame and is fixedly connected with a transmission gear. The transmission gear meshes with the internal gear ring. A plurality of rectangular accommodating grooves one evenly distributed in a circumferential manner are opened on the outer walls of the front and rear circular connecting plates.

[0013] Preferably, the second rotating part includes external gear rings installed at the opposite ends of the front and rear annular connecting plates. Incomplete gears two are installed on the inner walls at the front and rear ends of the C-shaped frame. The front and rear incomplete gears two respectively mesh with the corresponding external gear rings. A first motor is installed at the front end of the C-shaped frame through a motor seat. The output shaft of the first motor rotates through the C-shaped frame and is fixedly connected with a transmission shaft that fixedly penetrates through the front and rear incomplete gears two at the same time. Rectangular accommodating grooves two corresponding to the positions of a plurality of rectangular accommodating grooves one are opened on the inner walls of the front and rear annular connecting plates. Wedge-shaped sliding plates are slidably connected in a plurality of rectangular accommodating grooves two through compression springs.

[0014] Preferably, the variable-pitch drilling part includes a rectangular support frame installed on the electric slider. A kidney-shaped guiding hole one is opened at one end of the rectangular support frame away from the electric slider. An auxiliary pushing plate is slidably installed at one end of the rectangular support frame away from the electric slider. Two kidney-shaped guiding holes two distributed in an eight-shaped manner are opened on the auxiliary pushing plate. An automatic drilling machine is commonly and slidably installed in the corresponding kidney-shaped guiding hole one and kidney-shaped guiding hole two through an installation sliding sleeve. One end side wall of the rectangular support frame is installed with an electric telescopic rod three through a mounting seat. The telescopic end of the electric telescopic rod three is fixedly connected to the auxiliary pushing plate. Circular avoidance holes distributed in a rectangular manner are also opened on the outer wall of the annular support plate corresponding to the positions of a plurality of arc-shaped through holes.

[0015] Preferably, the blanking mechanism includes a triangular material receiving seat commonly installed at the lower side positions of the inner walls at the front and rear ends of the C-shaped frame. A pneumatic push rod two is installed through the C-shaped frame at the position corresponding to the blanking notch of the annular material blocking plate at the rear end of the C-shaped frame. The telescopic end of the pneumatic push rod two is fixedly connected with an arc-shaped pushing plate that is movably attached to the outer wall of the annular support plate.

[0016] Beneficial effects: 1. The feeding mechanism adopted by the drilling device for preparing the wear-resistant sheet provided by the present invention can push the wear-resistant sheet onto the annular support plate and avoid the problem of the wear-resistant sheet being offset and falling during the loading process. The clamping mechanism can adopt an inner clamping plate and two front and rear arc-shaped outer clamping plates to clamp the wear-resistant sheet inside and outside at the same time. The clamping is convenient and can effectively avoid the problem of the wear-resistant sheet being offset due to unstable clamping and affecting the drilling quality when drilling.

[0017] 2. The intermittent rotation mechanism and clamping mechanism used in the drilling device for preparing the wear-resistant sheet provided by the present invention can stably drive the wear-resistant sheet to rotate 120 degrees to the drilling working area, and then drill the front and rear sides of the wear-resistant sheet at the same time through the variable pitch drilling mechanism, and then drill the middle part of the wear-resistant sheet, thereby effectively improving the drilling efficiency and drilling quality.

[0018] 3. The position adjustment mechanism adopted by the drilling device for preparing wear-resistant sheets provided by the present invention can control the front and rear two arc-shaped outer clamps to disengage and move away from each other, and at the same time control the front and rear two automatic drills to approach each other through the variable pitch drilling mechanism, so as to synchronously drill holes on both sides of the middle of the wear-resistant sheet. The cooperation of the intermittent rotation mechanism, the clamping mechanism and the unloading mechanism can continue to drive the wear-resistant sheet after drilling to rotate 120 degrees to the unloading position, thereby realizing the effect of continuous automatic loading and unloading, and effectively improving the drilling work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0021] Figure 2 It is a partial cutaway three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism in the present invention.

[0023] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the clamping mechanism and the intermittent rotating mechanism in the present invention.

[0024] Figure 5 The present invention Figure 4 Enlarged view of the X in the middle.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping mechanism and the intermittent rotating mechanism in the present invention (excluding the circular connecting plate).

[0026] Figure 7It is a schematic diagram of the first partial cross-section stereoscopic structure of the clamping mechanism in the present invention.

[0027] Figure 8 It is a schematic diagram of the second partial cross-section stereoscopic structure of the clamping mechanism in the present invention.

[0028] Fig. 9 The present invention Figure 8 Enlarged view of Y in the middle.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the position adjustment mechanism in the present invention.

[0030] Fig.11 It is a first three-dimensional structural schematic diagram of the variable-distance drilling mechanism in the present invention.

[0031] Fig.12 It is a second three-dimensional structural schematic diagram of the variable-pitch drilling mechanism in the present invention (excluding the auxiliary push plate).

[0032] Fig.13 It is a partial cross-sectional three-dimensional structural schematic diagram of the feeding mechanism in the present invention.

[0033] In the figure: 1. C-shaped frame; 2. Ring-shaped support plate; 3. Clamping mechanism; 31. Support shaft; 32. Triangular cam; 33. Arc-shaped through hole; 34. Clamping part; 341. Inner clamping plate; 342. Circular avoidance hole; 343. Arc-shaped support plate; 344. Spring telescopic rod; 345. First T-shaped support rod; 346. Waist-shaped connecting rod; 347. Second T-shaped support rod; 348. Support connecting rod; 349. Square mounting plate; 350. Mounting slider; 351. Arc-shaped outer clamping plate; 36. Clamping part; 361. Mounting block; 362. Rectangular mounting groove; 363. Accommodating through hole; 364. Elastic clamping plate; 4. Position adjusting mechanism; 41. Position adjusting part; 411. First support cross plate; 412. Second support cross plate; 413. First waist-shaped sliding hole; 414. Second waist-shaped sliding hole; 415. First electric telescopic rod; 416. Second electric telescopic rod; 5. Intermittent rotation mechanism; 51. Ring-shaped connecting plate; 52. Circular connecting plate; 53. First rotating part; 531. Inner gear ring; 532. Servo motor; 533. Driving gear; 534. First rectangular accommodating groove; 54. Second rotating part; 541. Outer gear ring; 542. Incomplete gear two; 543. First motor; 544. Transmission shaft; 545. Second rectangular accommodating groove; 546. Wedge-shaped sliding plate; 6. Feeding mechanism; 61. Storage bin; 62. Sector-shaped sliding hole; 63. Arc-shaped top plate; 64. Rectangular stop bar; 65. Sector-shaped connecting plate; 66. First pneumatic push rod; 67. Ring-shaped baffle plate; 68. Semi-circular mounting plate; 69. Limit baffle; 7. Discharging mechanism; 71. Triangular receiving seat; 72. Second pneumatic push rod; 73. Arc-shaped push plate; 8. Variable pitch drilling mechanism; 81. Arch-shaped slide rail; 82. Electric slider; 83. Variable pitch drilling part; 831. Rectangular support frame; 832. First waist-shaped guiding hole; 833. Auxiliary push plate; 834. Second waist-shaped guiding hole; 835. Automatic drilling machine; 836. Third electric telescopic rod. Detailed implementation manners

[0034] The following will describe in detail the embodiments of the present invention with reference to the accompanying drawings. However, the present invention can be implemented in many different ways defined and covered by the claims.

[0035] Refer to Figure 1 , a drilling device for preparing wear-resistant sheets, including a C-shaped frame 1. A ring-shaped support plate 2 is arranged inside the C-shaped frame 1. A clamping mechanism 3 is jointly arranged on the C-shaped frame 1 and the ring-shaped support plate 2. A position adjusting mechanism 4 is arranged on the C-shaped frame 1 corresponding to the position of the clamping mechanism 3. An intermittent rotation mechanism 5 is jointly arranged on the C-shaped frame 1 and the ring-shaped support plate 2. A feeding mechanism 6 is arranged on the rear side wall of the C-shaped frame 1. A discharging mechanism 7 is arranged on the C-shaped frame 1 corresponding to the position of the ring-shaped support plate 2. A variable pitch drilling mechanism 8 is also jointly arranged on the C-shaped frame 1 and the ring-shaped support plate 2.

[0036] Refer to Figure 1 , Figure 2 , Figure 6 and Fig.13 , the feeding mechanism 6 includes a storage bin 61 installed at the position of the rear end of the C-shaped frame 1 corresponding to the annular support plate 2. A fan-shaped sliding hole 62 is formed in both the storage bin 61 and the C-shaped frame 1. Limiting baffles 69 are installed at the positions of the left and right inner walls of the storage bin 61 corresponding to the fan-shaped sliding hole 62. An arc-shaped pushing plate 63 is slidably installed in the fan-shaped sliding hole 62. Two left and right rectangular blocking strips 64 are installed at the front end of the arc-shaped pushing plate 63. A fan-shaped connecting plate 65 is installed at the rear end of the arc-shaped pushing plate 63. A pneumatic push rod 66 is installed at the lower end of the storage bin 61 through a mounting seat. The telescopic end of the pneumatic push rod 66 is fixedly connected to the fan-shaped connecting plate 65. An annular baffle plate 67 with a blanking notch is rotatably sleeved on the front side of the outer wall of the annular support plate 2. A semi-annular mounting plate 68 fixedly connected to the C-shaped frame 1 is installed at the front end of the annular baffle plate 67.

[0037] It should be noted that initially, the pneumatic push rod 66 drives the arc-shaped pushing plate 63 to withdraw from the fan-shaped sliding hole 62. First, a plurality of wear-resistant sheets to be drilled are placed in the C-shaped storage bin 61 by an external feeding device. Then, the pneumatic push rod 66 is controlled to drive the fan-shaped connecting plate 65 to move forward. The fan-shaped connecting plate 65 drives the arc-shaped pushing plate 63 to push the corresponding wear-resistant sheet forward until the front end of this wear-resistant sheet is in close contact with the annular baffle plate 67. During this period, the two left and right rectangular blocking strips 64 can prevent the position of the wear-resistant sheet from shifting.

[0038] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 7, the clamping mechanism 3 includes a support shaft 31 rotatably installed on the inner walls at the front and rear ends of the U-shaped frame 1. A triangular cam 32 is fixedly sleeved in the middle of the support shaft 31. A plurality of arc-shaped through holes 33 evenly distributed in a circle are formed on the outer wall of the annular support plate 2. Clamping parts 34 are arranged at positions corresponding to the plurality of arc-shaped through holes 33 on the annular support plate 2, and a clamping part 36 is arranged on the clamping part 34. The clamping part 34 includes an inner clamping plate 341 slidably arranged in the arc-shaped through hole 33. The inner clamping plate 341 is composed of an arc-shaped clamping plate and a circular abutting plate. A plurality of circular avoidance holes 342 distributed in a rectangle are formed on the outer wall of the arc-shaped clamping plate of the inner clamping plate 341. Arc-shaped support plates 343 are installed on both side walls of the arc-shaped clamping plate of the inner clamping plate 341. A spring telescopic rod 344 is installed through the outer wall of the arc-shaped support plate 343. The telescopic end of the spring telescopic rod 344 is fixedly connected to the annular support plate 2. The circular abutting plate of the inner clamping plate 341 is in rolling contact with the triangular cam 32. A first T-shaped support rod 345 is installed on the outer wall of the arc-shaped support plate 343. Waist-shaped connecting rods 346 are rotatably sleeved at both the front and rear ends of the horizontal section of the first T-shaped support rod 345. A second T-shaped support rod 347 is installed on the inner wall of the annular support plate 2 at a position corresponding to the first T-shaped support rod 345. The front and rear ends of the horizontal section of the second T-shaped support rod 347 are rotatably penetrated through the waist-shaped connecting rods 346.

[0039] Refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 , the clamping part 34 further includes support connecting rods 348 slidably penetrated and installed at positions corresponding to the plurality of waist-shaped connecting rods 346 on the annular support plate 2. One ends of the support connecting rods 348 close to the arc-shaped support plate 343 are hinged to the ends of the waist-shaped connecting rods 346 far from the first T-shaped support rod 345. A return-shaped mounting plate 349 is commonly installed at one ends of the front and rear two support connecting rods 348 on the same side located outside the annular support plate 2. The return-shaped mounting plate 349 is connected to the annular support plate 2 through a plurality of compression springs at positions corresponding to the two support connecting rods 348. Mounting sliders 350 are slidably connected to the inner walls of the front and rear ends of the return-shaped mounting plate 349 through compression springs. Arc-shaped outer clamping plates 351 are commonly installed between the two mounting sliders 350 on the same side of the front and rear.

[0040] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5, the intermittent rotation mechanism 5 includes annular connecting plates 51 installed at both the front and rear ends of the annular support plate 2. Circular connecting plates 52 fixedly sleeved on the support shaft 31 are rotatably installed on the inner walls of the annular connecting plates 51. A first rotating part 53 is jointly arranged on the front and rear circular connecting plates 52 and the C-shaped frame 1, and a second rotating part 54 is jointly arranged on the front and rear annular connecting plates 51 and the C-shaped frame 1. The first rotating part 53 includes an internal gear ring 531 installed at the front end of the front circular connecting plate 52. A servo motor 532 is installed on the front end of the C-shaped frame 1 through a motor base. The output shaft of the servo motor 532 rotatably penetrates through the C-shaped frame 1 and is fixedly connected with a transmission gear 533. The transmission gear 533 meshes with the internal gear ring 531. A plurality of rectangular accommodation grooves 534 evenly distributed in a circumferential manner are formed on the outer walls of the front and rear circular connecting plates 52.

[0041] It should be noted that the multiple inner clamping plates 341 and the multiple arc-shaped outer clamping plates 351 are initially in an unclamped state. After the front end of the wear-resistant piece is in close contact with the annular baffle plate 67, the servo motor 532 is controlled to drive the transmission gear 533 to rotate clockwise. The transmission gear 533 drives the front internal gear ring 531 until the front circular connecting plate 52 is driven to rotate 60 degrees clockwise. At this time, the front and rear circular connecting plates 52 jointly drive the triangular cam 32 to rotate 60 degrees clockwise through the support shaft 31. Under the combined action of the triangular cam 32 and the multiple inner clamping plates 341, the inner clamping plate 341 corresponding to the wear-resistant piece will clamp it internally. At the same time, the inner clamping plate 341 will drive the corresponding waist-shaped connecting rod 346 to rotate around the corresponding second T-shaped support rod 347 through the corresponding two first T-shaped support rods 345. The front and rear waist-shaped connecting rods 346 on the same side jointly drive the corresponding loop-shaped mounting plate 349 to move towards the annular support plate 2 through the corresponding support connecting rod 348. The two loop-shaped mounting plates 349 will jointly drive the front and rear arc-shaped outer clamping plates 351 to move towards the annular support plate 2 until they jointly clamp the wear-resistant piece externally. The feeding mechanism 6 can push the wear-resistant piece onto the annular support plate 2 and prevent the wear-resistant piece from shifting and falling during the feeding process. The clamping mechanism 3 uses the inner clamping plate 341 and the front and rear arc-shaped outer clamping plates 351 to clamp it internally and externally at the same time, which is convenient for clamping and effectively avoids the problem that the position of the wear-resistant piece shifts during drilling due to unstable clamping, affecting the drilling quality.

[0042] Refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6, the rotating part two 54 includes external gear rings 541 installed at the opposite ends of the front and rear two annular connecting plates 51. Incomplete gears two 542 are installed on the inner walls at the front and rear ends of the C-shaped frame 1. The front and rear two incomplete gears two 542 are respectively meshed with the corresponding external gear rings 541. A first motor 543 is installed at the front end of the C-shaped frame 1 through a motor base. The output shaft of the first motor 543 rotates through the C-shaped frame 1 and is fixedly connected to a transmission shaft 544 that fixedly penetrates through the front and rear two incomplete gears two 542 at the same time. Rectangular receiving grooves two 545 are opened on the inner walls of the front and rear two annular connecting plates 51 at positions corresponding to the plurality of rectangular receiving grooves one 534. Wedge-shaped sliding plates 546 are slidably connected in the plurality of rectangular receiving grooves two 545 through compression springs.

[0043] Refer to Figure 1 , Figure 4 , Figure 6 , Figure 8 and Fig. 9 , the clamping part 36 includes the front and rear two mounting blocks 361 installed at the opposite ends of the two U-shaped mounting plates 349. A clamping group is jointly arranged between the mounting blocks 361 and the arc-shaped outer clamping plate 351. The clamping group includes rectangular mounting grooves 362 opened at the ends of the mounting blocks 361 and the arc-shaped outer clamping plate 351 away from the annular support plate 2. Through holes 363 communicating with the corresponding rectangular mounting grooves 362 are opened at the opposite ends of the front and rear two mounting blocks 361. A through hole 363 communicating with the corresponding rectangular mounting groove 362 is also opened at the front end of the rear arc-shaped outer clamping plate 351. An elastic clamping plate 364 is installed at the rear end of the front arc-shaped outer clamping plate 351. Elastic clamping plates 364 are also installed at the opposite ends of the front and rear two arc-shaped outer clamping plates 351.

[0044] Refer to Figure 1 , Figure 4 , Figure 6 , Fig.11 and Fig.12, the variable pitch drilling mechanism 8 includes an arch-shaped slide rail 81 installed on the inner wall of the right end of the U-shaped frame 1. An electric slider 82 is installed on the arch-shaped slide rail 81, and a variable pitch drilling part 83 is arranged on the electric slider 82. The variable pitch drilling part 83 includes a rectangular support frame 831 installed on the electric slider 82. A waist-shaped guiding hole 832 is opened at one end of the rectangular support frame 831 away from the electric slider 82. An auxiliary push plate 833 is slidably installed at one end of the rectangular support frame 831 away from the electric slider 82. Two waist-shaped guiding holes 834 distributed in a shape like the Chinese character "八" (eight) are opened on the auxiliary push plate 833. An automatic drill 835 is slidably installed in the waist-shaped guiding hole 832 and the corresponding waist-shaped guiding hole 834 through a mounting sleeve. The automatic drill 835 adopts the prior art, and its specific structure will not be described in detail here. An electric telescopic rod three 836 is installed on the side wall of one end of the rectangular support frame 831 through a mounting seat. The telescopic end of the electric telescopic rod three 836 is fixedly connected to the auxiliary push plate 833. Circular avoidance holes 342 distributed in a rectangular shape are also opened on the outer wall of the annular support plate 2 corresponding to the positions of the plurality of arc-shaped through holes 33. The circular avoidance holes 342 are used to avoid the drill bit of the automatic drill 835.

[0045] It should be noted that during the process of the servo motor 532 controlling the front and rear circular connecting plates 52 to rotate clockwise, under the action of the compression spring, the plurality of wedge-shaped sliding plates 546 will all retract into the corresponding rectangular accommodating grooves 545. Therefore, the circular connecting plates 52 will not drive the corresponding annular connecting plates 51 to rotate, and the front and rear arc-shaped outer clamping plates 351 are initially tightly attached and in a clamped state under the action of the compression spring. After clamping the wear-resistant sheet inside and outside, the drive shaft 544 is controlled to rotate counterclockwise by the first motor 543. The drive shaft 544 is respectively transmitted with the corresponding outer tooth rings 541 through the front and rear incomplete gears two 542 until the front and rear outer tooth rings 541 respectively drive the corresponding annular connecting plates 51 to rotate clockwise by 120 degrees. At this time, the wear-resistant sheet rotates clockwise by 120 degrees. Under the action of the plurality of wedge-shaped sliding plates 546, the circular connecting plates 52 will rotate synchronously with the annular connecting plates 51 by 120 degrees.

[0046] It should also be noted that the two automatic drillers 835 at the front and back are initially in a state of moving away from each other. Then, control the electric slider 82 to intermittently slide downward along the arch-shaped slide rail 81. The electric slider 82 drives the two automatic drillers 835 at the front and back to move along with it through the rectangular support frame 831. During this period, whenever the two automatic drillers 835 at the front and back move to the positions where the wear-resistant sheet needs to be drilled, control the two automatic drillers 835 at the front and back to drill the front and back sides of the wear-resistant sheet simultaneously. After all the positions where drilling is required on the front and back sides of the wear-resistant sheet are drilled, control the electric telescopic rod three 836 to extend. At this time, the auxiliary push plate 833 will slide along the rectangular support frame 831, and under the cooperative action of the waist-shaped guiding hole one 832 and the corresponding waist-shaped guiding hole two 834, the two automatic drillers 835 at the front and back will approach each other, facilitating subsequent drilling work on the middle sides of the wear-resistant sheet. The intermittent rotation mechanism 5 and the clamping mechanism 3 cooperate to stably drive the wear-resistant sheet to rotate 120 degrees to the drilling work area, and then the variable-distance drilling mechanism 8 first drills the front and back sides of the wear-resistant sheet simultaneously, and then drills the middle of the wear-resistant sheet, effectively improving the drilling efficiency and drilling quality.

[0047] Refer to Figure 1 and Fig.10 As shown in and, the position adjustment mechanism 4 includes two upper and lower position adjustment parts 41 commonly arranged on the inner walls at the front and rear ends of the U-shaped frame 1. The position adjustment part 41 includes a support cross plate one 411 commonly installed at the positions corresponding to the clamping groups on the inner walls at the front and rear ends of the U-shaped frame 1. A support cross plate two 412 is also commonly installed and slidably on the inner walls at the front and rear ends of the U-shaped frame 1. The support cross plate two 412 slides and fits on the support cross plate one 411. Two front and rear waist-shaped sliding holes one 413 are opened on the support cross plate one 411. Two waist-shaped sliding holes two 414 distributed in an eight-shaped manner are opened on the support cross plate two 412. Electric telescopic rods one 415 are commonly slidably installed in the waist-shaped sliding holes one 413 and the corresponding waist-shaped sliding holes two 414 through installation sleeves. One end side wall of the support cross plate one 411 close to the corresponding circular installation plate 349 is installed with an electric telescopic rod two 416 through a mounting seat. The telescopic end of the electric telescopic rod two 416 is fixedly connected to the support cross plate two 412.

[0048] Refer to Figure 1 、 Figure 2 and Figure 6 As shown in, and, the blanking mechanism 7 includes a triangular material receiving seat 71 commonly installed at the lower side positions of the inner walls at the front and rear ends of the U-shaped frame 1. A pneumatic push rod two 72 is installed through the rear end of the U-shaped frame 1 corresponding to the blanking notch of the annular material retaining plate 67. The telescopic end of the pneumatic push rod two 72 is fixedly connected to an arc-shaped push plate 73 that movably fits on the outer wall of the annular support plate 2.

[0049] It should be noted that the front and rear electric telescopic rods 415 on the upper and lower sides are initially in a state of being close to each other. After the front and rear automatic drills 835 are close to each other, the front and rear electric telescopic rods 415 on the upper and lower sides are controlled to extend into the rectangular mounting grooves 362 on the front and rear arc-shaped outer clamping plates 351 respectively, and the elastic clamping plates 364 on the front arc-shaped outer clamping plates 351 are squeezed by the telescopic ends of the corresponding electric telescopic rods 415. At this time, the front and rear arc-shaped outer clamping plates 351 can be separated, and then the upper and lower electric telescopic rods 416 are controlled to extend, and the supporting cross plates 412 on the upper and lower sides will slide along the corresponding supporting cross plates 411, and under the cooperation of the waist-shaped sliding hole 413 and the corresponding waist-shaped sliding hole 414, the front and rear electric telescopic rods 415 on the upper and lower sides will move away from each other, and the front and rear electric telescopic rods 415 on the upper and lower sides will drive the corresponding front and rear arc-shaped outer clamping plates 351 to move away from each other until the upper and lower sides are closed. The elastic clamping plates 364 on the front and rear arc-shaped outer clamping plates 351 on the lower two sides are respectively inserted into the rectangular mounting grooves 362 on the corresponding mounting blocks 361, so as to realize the effect of the front and rear arc-shaped outer clamping plates 351 on the upper and lower sides being respectively clamped with the corresponding mounting blocks 361. During this period, multiple mounting sliders 350 will respectively make adaptive sliding compensation along the corresponding circular mounting plates 349, and then control the front and rear electric telescopic rods 1 415 and the upper and lower electric telescopic rods 2 416 on the upper and lower sides to return to their original positions, and then control the electric slider 82 to slide upward intermittently along the arch bridge-shaped slide rail 81 again. The electric slider 82 will drive the front and rear automatic drillers 835 to follow the movement through the rectangular support frame 831. During this period, whenever the front and rear automatic drillers 835 move to the position where the wear-resistant plate needs to be drilled, the front and rear automatic drillers 835 are controlled to drill holes on both sides of the middle part of the wear-resistant plate at the same time until all the positions where the holes need to be drilled on the wear-resistant plate are drilled.

[0050] Continue to control the transmission shaft 544 to rotate counterclockwise through the No. 1 motor 543, and the transmission shaft 544 is respectively transmitted to the corresponding outer gear ring 541 through the front and rear two incomplete gears 542, until the front and rear two outer gear rings 541 respectively drive the corresponding annular connecting plate 51 to rotate 120 degrees clockwise. At this time, the wear-resistant sheet after drilling follows the clockwise rotation of 120 degrees and moves to the position corresponding to the arc push plate 73. Then, the servo motor 532 continues to control the front and rear two circular connecting plates 52 to rotate 60 degrees clockwise. Under the cooperation of the triangular cam 32 and multiple inner clamping plates 341, the multiple inner clamping plates 341 return to their original positions and become unclamped. At this time, the pneumatic push rod 2 72 is controlled to drive the arc push plate 73 to move forward. The arc push plate 73 will push the wear-resistant sheet after drilling to move forward. The wear-resistant sheet will fall on the triangular material receiving seat 71 and then be received and processed by the external material receiving equipment. At the same time, repeat the above-mentioned loading steps again. After loading is completed, the servo motor 532 is used to continue to control the front and rear circular connecting plates 52 to rotate 60 degrees clockwise. Under the cooperation of the triangular cam 32 and multiple inner clamping plates 341, the multiple inner clamping plates 341 will clamp the subsequent wear-resistant sheets inside and outside. Continue to repeat all the above-mentioned operations to carry out continuous automatic loading and unloading and drilling of the wear-resistant sheets. The position adjustment mechanism 4 can control the front and rear two arc-shaped outer clamping plates 351 to disengage from the clamping connection and move away from each other. At the same time, the front and rear automatic drillers 835 are controlled to approach each other through the variable pitch drilling mechanism 8, so as to synchronously drill the positions on both sides of the middle of the wear-resistant sheet. The intermittent rotation mechanism 5, the clamping mechanism 3 and the unloading mechanism 7 cooperate to continue to drive the wear-resistant sheet after drilling to rotate 120 degrees to the unloading position, thereby realizing the effect of continuous automatic loading and unloading, and effectively improving the drilling work efficiency.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms: "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling device for preparing wear-resistant sheets, comprising a U-shaped frame (1), Characterized in that, An annular support plate (2) is arranged inside the U-shaped frame (1), a clamping mechanism (3) is jointly arranged on the U-shaped frame (1) and the annular support plate (2), a position adjusting mechanism (4) is arranged on the U-shaped frame (1) corresponding to the position of the clamping mechanism (3), an intermittent rotation mechanism (5) is jointly arranged on the U-shaped frame (1) and the annular support plate (2), a feeding mechanism (6) is arranged on the rear side wall of the U-shaped frame (1), a discharging mechanism (7) is arranged on the U-shaped frame (1) corresponding to the position of the annular support plate (2), and a variable-spacing drilling mechanism (8) is jointly arranged on the U-shaped frame (1) and the annular support plate (2); The clamping mechanism (3) includes support shafts (31) rotatably installed on the inner walls of the front and rear ends of the U-shaped frame (1) together, a triangular cam (32) is fixedly sleeved in the middle of the support shafts (31), a plurality of arc-shaped through holes (33) evenly distributed in a circumferential manner are formed on the outer wall of the annular support plate (2), clamping parts (34) are arranged at positions corresponding to the plurality of arc-shaped through holes (33) on the annular support plate (2), and a clamping part (36) is arranged on the clamping part (34); The intermittent rotation mechanism (5) includes annular connecting plates (51) installed at both the front and rear ends of the annular support plate (2), circular connecting plates (52) fixedly sleeved on the support shafts (31) and rotatably installed on the inner walls of the annular connecting plates (51), a rotating part one (53) is jointly arranged on the front and rear two circular connecting plates (52) and the U-shaped frame (1), and a rotating part two (54) is jointly arranged on the front and rear two annular connecting plates (51) and the U-shaped frame (1); The variable-spacing drilling mechanism (8) includes an arch-shaped sliding rail (81) installed on the inner wall of the right end of the U-shaped frame (1), an electric slider (82) is installed on the arch-shaped sliding rail (81), and a variable-spacing drilling part (83) is arranged on the electric slider (82).

2. A drilling device for preparing wear-resistant sheets according to claim 1, Characterized in that: The feeding mechanism (6) includes a storage bin (61) installed at the rear end of the U-shaped frame (1) corresponding to the annular support plate (2), a fan-shaped sliding hole (62) is jointly formed on the storage bin (61) and the U-shaped frame (1), limiting baffles (69) are installed at positions corresponding to the fan-shaped sliding hole (62) on the inner walls of the left and right ends of the storage bin (61), an arc-shaped material pushing plate (63) is slidably installed in the fan-shaped sliding hole (62), two rectangular blocking strips (64) are installed at the front end of the arc-shaped material pushing plate (63), a fan-shaped connecting plate (65) is installed at the rear end of the arc-shaped material pushing plate (63), a pneumatic push rod one (66) is installed at the lower end of the storage bin (61) through a mounting seat, and the telescopic end of the pneumatic push rod one (66) is fixedly connected to the fan-shaped connecting plate (65), an annular baffle plate (67) with a discharging notch is rotatably sleeved on the front side of the outer wall of the annular support plate (2), and a semi-annular mounting plate (68) fixedly connected to the U-shaped frame (1) is installed at the front end of the annular baffle plate (67).

3. A drilling device for preparing wear-resistant sheets according to claim 1, Characterized in that: The clamping portion (34) comprises an inner clamping plate (341) slidably arranged in the arc-shaped through hole (33), the inner clamping plate (341) is composed of an arc-shaped clamping plate and a circular abutment plate, a plurality of circular avoidance holes (342) distributed in a rectangular shape are opened on the outer wall of the arc-shaped clamping plate of the inner clamping plate (341), and arc-shaped support plates (343) are installed on both side walls of the arc-shaped clamping plate of the inner clamping plate (341), a spring telescopic rod (344) is installed through the outer wall of the arc-shaped support plate (343), and the telescopic end of the spring telescopic rod (344) is fixedly connected to the annular On the support plate (2), the circular abutment plate of the inner clamping plate (341) rolls in contact with the triangular cam (32), and a T-shaped support rod 1 (345) is installed on the outer wall of the arc-shaped support plate (343), and the front and rear ends of the horizontal section of the T-shaped support rod 1 (345) are rotatably sleeved with a waist-shaped connecting rod (346), and a T-shaped support rod 2 (347) is installed on the inner wall of the annular support plate (2) at a position corresponding to the T-shaped support rod 1 (345), and the front and rear ends of the horizontal section of the T-shaped support rod 2 (347) are rotatably penetrated by the waist-shaped connecting rod (346).

4. A drilling device for preparing a wear-resistant sheet according to claim 3, Features: The clamping portion (34) also includes support links (348) that are slidably installed at positions corresponding to the multiple waist-shaped links (346) on the annular support plate (2), and one end of the support link (348) close to the arc-shaped support plate (343) is hinged to the end of the waist-shaped link (346) away from the T-shaped support rod (345). The two front and rear support links (348) on the same side are located at one end of the outer side of the annular support plate (2) and are jointly installed with a circular mounting plate (349). The positions of the circular mounting plate (349) corresponding to the two support links (348) are connected to the annular support plate (2) through multiple compression springs, and the inner walls of the front and rear ends of the circular mounting plate (349) are slidably connected with mounting slide blocks (350) through compression springs, and an arc-shaped outer clamping plate (351) is jointly installed between the two mounting slide blocks (350) on the same side.

5. A drilling device for preparing a wear-resistant sheet according to claim 4, Features: The clamping portion (36) includes two front and rear mounting blocks (361) mounted on opposite ends of the two circular mounting plates (349); a clamping group is provided between the mounting blocks (361) and the arc-shaped outer clamping plate (351); the clamping group includes rectangular mounting grooves (362) provided on the mounting blocks (361) and the ends of the arc-shaped outer clamping plate (351) away from the annular support plate (2); the opposite ends of the front and rear mounting blocks (361) are provided with accommodating through holes (363) connected to the corresponding rectangular mounting grooves (362); the front end of the rear arc-shaped outer clamping plate (351) is also provided with an accommodating through hole (363) connected to the corresponding rectangular mounting grooves (362); the rear end of the front arc-shaped outer clamping plate (351) is provided with an elastic clamping plate (364); the opposite ends of the front and rear arc-shaped outer clamping plates (351) are also provided with elastic clamping plates (364).

6. A drilling device for preparing wear-resistant sheets according to claim 1, characterized in that: The position adjusting mechanism (4) includes two upper and lower position adjusting parts (41) commonly arranged on the inner walls of the front and rear ends of the U-shaped frame (1). The position adjusting part (41) includes a support cross plate one (411) commonly installed on the inner walls of the front and rear ends of the U-shaped frame (1) corresponding to the clamping group. On the inner walls of the front and rear ends of the U-shaped frame (1), a support cross plate two (412) is also slidably installed in common. The support cross plate two (412) is slidably attached to the support cross plate one (411). Two front and rear kidney-shaped sliding holes one (413) are opened on the support cross plate one (411). Two kidney-shaped sliding holes two (414) distributed in an eight-shaped manner are opened on the support cross plate two (412). An electric telescopic rod one (415) is slidably installed in the kidney-shaped sliding hole one (413) and the corresponding kidney-shaped sliding hole two (414) through an installation sleeve. On the side wall of one end of the support cross plate one (411) close to the corresponding rectangular installation plate (349), an electric telescopic rod two (416) is installed through a mounting seat. The telescopic end of the electric telescopic rod two (416) is fixedly connected to the support cross plate two (412).

7. A drilling device for preparing wear-resistant sheets according to claim 1, characterized in that: The rotating part one (53) includes an internal gear ring (531) installed at the front end of the circular connecting plate (52) at the front side. A servo motor (532) is installed at the front end of the U-shaped frame (1) through a motor seat. The output shaft of the servo motor (532) rotates through the U-shaped frame (1) and is fixedly connected to a transmission gear (533). The transmission gear (533) meshes with the internal gear ring (531). A plurality of rectangular accommodating grooves one (534) are evenly distributed in a circumferential manner on the outer walls of the front and rear circular connecting plates (52).

8. A drilling device for preparing wear-resistant sheets according to claim 7, characterized in that: The rotating part two (54) includes external gear rings (541) installed at the opposite ends of the front and rear annular connecting plates (51). Incomplete gears two (542) are installed on the inner walls of the front and rear ends of the U-shaped frame (1). The front and rear incomplete gears two (542) are respectively meshed with the corresponding external gear rings (541). A first motor (543) is installed at the front end of the U-shaped frame (1) through a motor seat. The output shaft of the first motor (543) rotates through the U-shaped frame (1) and is fixedly connected to a transmission shaft (544) that simultaneously fixedly penetrates through the front and rear incomplete gears two (542). Rectangular accommodating grooves two (545) are opened on the inner walls of the front and rear annular connecting plates (51) corresponding to the positions of the plurality of rectangular accommodating grooves one (534). Wedge-shaped sliding plates (546) are slidably connected in the plurality of rectangular accommodating grooves two (545) through compression springs.

9. A drilling device for preparing wear-resistant sheets according to claim 1, characterized in that: The variable-pitch drilling part (83) includes a rectangular support frame (831) mounted on an electric slider (82). A kidney-shaped guiding hole one (832) is formed at one end of the rectangular support frame (831) away from the electric slider (82). An auxiliary push plate (833) is slidably mounted at one end of the rectangular support frame (831) away from the electric slider (82). Two kidney-shaped guiding holes two (834) distributed in a V-shape are formed on the auxiliary push plate (833). An automatic drill (835) is slidably mounted in the kidney-shaped guiding hole one (832) and the corresponding kidney-shaped guiding hole two (834) through a mounting sleeve. An electric telescopic rod three (836) is mounted on the side wall of one end of the rectangular support frame (831) through a mounting seat. The telescopic end of the electric telescopic rod three (836) is fixedly connected to the auxiliary push plate (833). Circular avoidance holes (342) distributed in a rectangular shape are also formed on the outer wall of the annular support plate (2) corresponding to the positions of a plurality of arc-shaped through holes (33).

10. A drilling device for preparing wear-resistant sheets according to claim 1, characterized in that: The blanking mechanism (7) includes a triangular material receiving seat (71) jointly mounted at the lower side positions of the inner walls at the front and rear ends of a U-shaped frame (1). A pneumatic push rod two (72) is installed through the rear end of the U-shaped frame (1) corresponding to the blanking notch of the annular material blocking plate (67). The telescopic end of the pneumatic push rod two (72) is fixedly connected to an arc-shaped push plate (73) movably attached to the outer wall of the annular support plate (2).

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