Metal casting valve body drilling equipment convenient to adjust

Abstract

The invention discloses metal casting valve body drilling equipment convenient to adjust, and relates to the technical field of drilling equipment.The metal casting valve body drilling equipment comprises a rack, a mounting frame is fixedly mounted at the top of the rack, waste discharging hoppers are fixedly mounted on the two sides of the rack correspondingly, and a driver is mounted at the top of the mounting frame; a drilling device is installed at the output end of the driver, and the driver is used for driving the drilling device to conduct drilling treatment on the metal casting valve body. According to the metal casting valve body drilling equipment convenient to adjust, through the arrangement of the workpiece rotator, a metal casting valve body is borne, the driver and the drilling device are matched, drilling treatment is conducted on the position of a valve body flange, in the process, the double drilling effect of the drilling device is utilized, the accuracy of drilling of the valve body flange is ensured, and the drilling efficiency is improved. And the stress generated by vibration in the drilling process is absorbed, and the stress causing drilling deflection is weakened, so that the valve body machining quality and efficiency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling equipment, and particularly to a drilling equipment for metal casting valve bodies that is convenient to adjust. Background Technique

[0002] A metal casting valve body refers to a key component of a valve used to control the flow of fluids (such as water, gas, oil, etc.) in pipelines, which is manufactured through a casting process. The valve body is the main part of the valve structure. It bears the internal flow channel shape of the valve, determines the flow direction, flow rate, and opening and closing state of the fluid. During the processing of the metal casting valve body, it is necessary to drill holes in the flange position of the valve body to obtain a valve body that meets the production requirements. This process is often achieved through drilling equipment.

[0003] When drilling the flange of a metal casting valve body, due to the influence of the drilling stress between the drill bit and the workpiece, vibration will occur during the drilling process, resulting in skewing and chattering of the drilled holes, which affects the accuracy of the drilling process. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A drilling equipment for metal casting valve bodies that is convenient to adjust, including a frame. The frame serves as the basic support structure of the entire equipment, providing stability and an installation foundation. An installation frame is fixedly installed on the top of the frame. Scrap discharge hoppers are fixedly installed on both sides of the frame, and the scrap discharge hoppers are used to guide and discharge the scraps generated during the drilling process. A driver is installed on the top of the installation frame, and the driver provides power for the drilling process. A drill is installed at the output end of the driver, and the driver is used to drive the drill to drill the metal casting valve body. A workpiece rotator is installed on the top of the frame, and the workpiece rotator is used to support the metal casting valve body to assist in the drilling process, and the workpiece rotator is arranged below the drill. The installation frame is used to install and fix the driver and the drill;

[0005] Among them, the drill includes a drill bit, which plays the role of performing the drilling operation. The drill bit is installed at the output end of the driver. A floating drill cylinder is installed outside the drill bit. A guiding and distance-adjusting member is installed on the outer edge surface of the floating drill cylinder, and the guiding and distance-adjusting member is used to adjust the relative position between the floating drill cylinder and the drill bit to weaken the influence of the vibration force during the drilling process;

[0006] The floating drill cylinder includes a fixed cylinder. The top of the fixed cylinder is connected to the output end of the driver. The top of the drill bit is fixed to the top of the inner cavity of the fixed cylinder. A drill cylinder is arranged below the fixed cylinder. The guiding and distance-adjusting member is installed on the outer edge surfaces of the fixed cylinder and the drill cylinder. Cutting teeth are fixedly installed on the bottom surface of the drill cylinder to form a pre-drilled groove mark on the valve body flange. The cutting teeth are used to participate in the cutting work during drilling.

[0007] Preferably, the driver includes a bearing plate which plays a bearing role. The bottom surface of the bearing plate is fixed to the top of the mounting frame. Symmetrically arranged lifting cylinders are fixedly installed on the top of the bearing plate. The lifting cylinders are used to control the lifting actions of related components to achieve height adjustment. The output shafts of the lifting cylinders penetrate the bearing plate and slide on the inner wall of the bearing plate. The end of the output shaft of the lifting cylinder is fixedly connected with an installation box. A servo motor is fixedly installed in the inner cavity of the installation box. The installation box is used to accommodate and protect the internal servo motor. A limiting member is installed on the outer surface of the installation box. The limiting member plays a role in limiting and guiding to ensure the accuracy and stability of the movement.

[0008] Preferably, the limiting member includes a fixed block. The top of the fixed block is fixed to the bottom surface of the bearing plate. A limiting rod is fixedly installed on the bottom surface of the fixed block. A sliding sleeve plate is slidably fitted on the outer edge surface of the limiting rod. One side surface of the sliding sleeve plate is fixed to the outer edge surface of the installation box.

[0009] Preferably, the guiding and distance-adjusting member includes a connecting plate. One side surface of the connecting plate is fixed to the outer edge surface of the fixed cylinder. A guiding cylinder is fixedly connected to the bottom surface of the connecting plate. The connecting plate is used to install and fix the guiding cylinder. The guiding cylinder provides a guiding function. A sleeve ring is fixedly installed at the bottom end of the inner edge surface of the guiding cylinder. A pressing rod is slidably fitted on the inner edge surface of the sleeve ring. The bottom surface of the pressing rod is fixedly connected with a bottom plate. The bottom plate serves as the bottom supporting surface to fix the pressing rod. One side surface of the bottom plate is fixed to the outer edge surface of the drilling cylinder. The top of the pressing rod is fixedly connected with a distance-adjusting spring member. The top of the distance-adjusting spring member is fixed to the top of the inner cavity of the guiding cylinder. The pressing rod is used to apply pressure to the distance-adjusting spring member.

[0010] Preferably, a centering sleeve ring is fixedly installed on the inner edge surface of the drilling cylinder. The inner edge surface of the centering sleeve ring is slidably fitted with the outer edge surface of the drill bit. The centering sleeve ring plays a role in centering the drill bit to ensure the perpendicularity of the drilling.

[0011] Preferably, chip discharge grooves are formed on the outer edge surface of the drilling cylinder. The chip discharge grooves facilitate the discharge of chips generated during drilling. A guiding inclined plate is fixedly installed on the inner edge surface of the drilling cylinder, and the guiding inclined plate is arranged inside the chip discharge grooves. The guiding inclined plate is used to cooperate with the chip discharge grooves to guide the waste materials to be discharged.

[0012] Preferably, a limiting plate is fixedly installed on the outer edge surface of the fixed cylinder. A limiting groove is formed on the outer edge surface of the drilling cylinder, and the outer edge surface of the limiting plate is slidably fitted with the inner wall of the limiting groove. The limiting plate and the limiting groove cooperate to limit the movement range between the fixed cylinder and the drilling cylinder and ensure the connection strength during the rotation process.

[0013] Preferably, the workpiece rotator includes a turntable for carrying the workpiece to rotate. The bottom surface of the turntable is adapted to rotate with the top of the frame. A driving motor is provided on the bottom surface of the turntable to provide power for the rotation of the workpiece and the turntable. The top of the driving motor is fixed to the top of the inner cavity of the frame, and the output shaft of the driving motor penetrates the frame and is adapted to rotate with the inner wall of the frame. The end of the output shaft of the driving motor is fixed to the bottom surface of the turntable. A through groove is formed in the top of the turntable, and the inner diameter value of the through groove is equal to the outer diameter value of the drill barrel. The through groove is used to discharge the waste generated by drilling.

[0014] Preferably, a mounting plate is fixedly installed on the outer edge surface of the turntable. Symmetrically arranged clamping cylinders are fixedly installed on the inner side surface of the mounting plate. The end of the output shaft of the clamping cylinder is fixedly connected with an arc-shaped clamping plate. The bottom surface of the arc-shaped clamping plate slides on the top of the turntable. The clamping cylinder and the arc-shaped clamping plate are used to clamp the workpiece to ensure its stability during the drilling process.

[0015] Preferably, a rotating groove is formed in the top of the frame. A rotating ring is fixedly installed on the bottom of the turntable. The outer edge surface of the rotating ring is adapted to slide with the inner wall of the rotating groove. A ball is rotatably installed on the inner bottom wall of the rotating ring. The outer edge surface of the ball slides with the bottom surface of the inner wall of the rotating groove. The rotating groove and the rotating ring contribute to the smooth rotation of the turntable and the workpiece.

[0016] The present invention provides a metal casting valve body drilling device that is easy to adjust, having the following beneficial effects:

[0017] First, in this easy-to-adjust metal casting valve body drilling device, through the setting of the workpiece rotator, the metal casting valve body is carried. By the cooperation of the driver and the drill, the valve body flange position is drilled. During this process, using the double drilling effect of the drill, the accuracy of drilling the valve body flange is ensured, and the stress generated by the vibration during drilling is absorbed, weakening the stress causing drilling deviation, thereby effectively improving the quality and efficiency of valve body processing.

[0018] II. The drilling device for metal casting valve bodies that is easy to adjust drives the mounting box and the servo motor to move downward through the lifting cylinder, and rotates the drill bit by rotating the output shaft of the servo motor. At the same time, the mounting box is limited by the limiting member to enhance the stability during the drilling process. Then, in cooperation with the prior contact between the rotating drill bit and the valve body flange, an advanced drilling operation is performed on the workpiece. After the drill bit penetrates the workpiece, the floating drill cylinder contacts the valve body flange during synchronous rotation. By setting the guiding and distance-adjusting member, the floating drill cylinder is in a relatively floating state, so that during rotation, the floating drill cylinder forms a pre-drilling groove mark on the valve body flange. When the guiding and distance-adjusting member reaches the distance-adjusting limit, the floating drill cylinder drills in the pre-drilling groove mark. In cooperation with the advanced drilling operation of the drill bit, the drill bit and the floating drill cylinder are in a stable axial position, so as to reduce the vibration force during the overall drilling process and avoid skewing during the drilling process.

[0019] III. The drilling device for metal casting valve bodies that is easy to adjust drills the drilling area of the valve body flange through the prior contact between the drill bit and the valve body flange. Then, during the high-speed rotation, the pre-drilling groove mark is formed on the valve body flange by the contact between the cutting teeth and the flange. Using the extrusion force generated by the contact between the cutting teeth and the flange, the drill cylinder slides outside the drill bit and pushes the bottom plate and the pressure rod to move, causing the pressure rod to slide in the guiding cylinder and squeezing the distance-adjusting spring member to deform, adjusting the relative position between the drill cylinder and the drill bit, and deepening the depth of the pre-drilling groove mark. At the same time, the drill bit is limited by the centering sleeve ring to keep the center lines of the drill bit and the drill cylinder consistent. Furthermore, the drilling effect is enhanced by the combined action of the drill bit and the drill cylinder, thus ensuring the drilling quality and efficiency of the valve body flange.

[0020] IV. The drilling device for metal casting valve bodies that is easy to adjust discharges the drilling debris through the synchronous rotation of the drill bit and the drill cylinder, and the guiding inclined plate diverts the drilling debris, so that the debris is discharged through the chip removal groove, preventing the debris from blocking and affecting the overall drilling effect, and ensuring the drilling efficiency.

[0021] V. The drilling device for metal casting valve bodies that is easy to adjust locks the valve body through the cooperation of the clamping cylinder and the arc-shaped clamping plate, so that the valve body is centered for drilling. Then, the driving motor drives the turntable to rotate, and in cooperation with the sliding of the rotating ring in the rotating groove, the stability during driving the valve body to rotate is ensured. Moreover, the friction during the rotation of the turntable is reduced by setting the ball bearings, thereby ensuring the efficiency during the drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the external structure of a drilling device for metal casting valve bodies that is easy to adjust according to the present invention;

[0023] Figure 2 is a three-dimensional structure diagram of the mounting frame, the driver and the drill of the present invention;

[0024] Figure 3 Schematic three-dimensional structure diagram of the driver and the drill of the present invention;

[0025] Figure 4 Partial structure schematic diagram of the driver and the drill of the present invention;

[0026] Figure 5 Schematic three-dimensional structure diagram of the drill of the present invention;

[0027] Figure 6 Schematic three-dimensional structure diagram of the drill of the present invention;

[0028] Figure 7 Partial cross-sectional structure schematic diagram of the drill of the present invention;

[0029] Figure 8 Partial structure schematic diagram of the floating drill barrel and the guiding and distance-adjusting member of the present invention;

[0030] Figure 9 Partial structure schematic diagram of the floating drill barrel of the present invention;

[0031] Figure 10 Partial structure schematic diagram of the present invention;

[0032] Figure 11 Schematic three-dimensional structure diagram of the workpiece rotator of the present invention;

[0033] Figure 12 Schematic three-dimensional structure diagram of the workpiece rotator of the present invention.

[0034] In the figure: 1, frame; 2, mounting frame; 3, waste discharge hopper; 4, driver; 41, lifting cylinder; 42, bearing plate; 43, mounting box; 44, servo motor; 45, limiting member; 451, fixing block; 452, limiting rod; 453, sliding sleeve plate; 5, drill; 51, drill bit; 52, floating drill barrel; 521, fixing barrel; 522, drill barrel; 523, limiting plate; 524, limiting groove; 525, cutting tooth; 526, chip removal groove; 527, guiding inclined plate; 528, centering collar; 53, guiding and distance-adjusting member; 531, connecting plate; 532, guiding cylinder; 533, pressing rod; 534, bottom plate; 535, distance-adjusting spring member; 6, workpiece rotator; 61, turntable; 62, driving motor; 63, mounting plate; 64, clamping cylinder; 65, arc-shaped clamping plate; 66, through groove; 67, rotating ring; 68, ball; 7, rotating groove. Detailed implementation manners

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0036] The first embodiment is as Figures 1 to 6 shown. The present invention provides a technical solution: a metal casting valve body drilling device that is easy to adjust, including a frame 1. A mounting frame 2 is fixedly installed on the top of the frame 1. Scrap discharge hoppers 3 are fixedly installed on both sides of the frame 1. A driver 4 is installed on the top of the mounting frame 2. A drill 5 is installed at the output end of the driver 4. The driver 4 is used to drive the drill 5 to drill the metal casting valve body. A workpiece rotator 6 is installed on the top of the frame 1. The workpiece rotator 6 is used to support the metal casting valve body to assist in the drilling process, and the workpiece rotator 6 is arranged below the drill 5. Through the arrangement of the workpiece rotator 6, the metal casting valve body is carried, and the driver 4 and the drill 5 are used in cooperation to drill the flange position of the valve body. During this process, the double drilling effect of the drill 5 is utilized to ensure the accuracy when drilling the valve body flange, and absorb the stress generated by the vibration during the drilling process, weakening the stress causing drilling deviation;

[0037] The driver 4 includes a bearing plate 42. The bottom surface of the bearing plate 42 is fixed to the top of the mounting frame 2. Symmetrically arranged lifting cylinders 41 are fixedly installed on the top of the bearing plate 42. The output shaft of the lifting cylinder 41 penetrates the bearing plate 42 and slides with the inner wall of the bearing plate 42. The end of the output shaft of the lifting cylinder 41 is fixedly connected to an installation box 43. A servo motor 44 is fixedly installed in the inner cavity of the installation box 43. A limiting member 45 is installed on the outer surface of the installation box 43. The limiting member 45 includes a fixed block 451. The top of the fixed block 451 is fixed to the bottom surface of the bearing plate 42. A limiting rod 452 is fixedly installed on the bottom surface of the fixed block 451. A sliding sleeve plate 453 is slidably fitted on the outer edge surface of the limiting rod 452. One side surface of the sliding sleeve plate 453 is fixed to the outer edge surface of the installation box 43. The installation box 43 and the servo motor 44 are driven by the lifting cylinder 41 to move downward, and the drill 5 is rotated by the rotation of the output shaft of the servo motor 44. At the same time, the installation box 43 is limited by the limiting member 45 to enhance the stability of the drilling process;

[0038] Among them, the drill 5 includes a drill bit 51. The drill bit 51 is installed at the output end of the driver 4. A floating drill cylinder 52 is installed outside the drill bit 51. A guiding and distance-adjusting member 53 is installed on the outer edge surface of the floating drill cylinder 52;

[0039] The floating drill barrel 52 includes a fixed barrel 521. The top of the fixed barrel 521 is connected to the output end of the driver 4. The top of the drill bit 51 is fixed to the top of the inner cavity of the fixed barrel 521. A drill barrel 522 is arranged below the fixed barrel 521. The guiding and distance-adjusting member 53 is installed on the outer edge surfaces of the fixed barrel 521 and the drill barrel 522. A cutting tooth 525 is fixedly installed on the bottom surface of the drill barrel 522, so as to form a pre-drilling groove mark on the valve body flange, cooperate with the rotation of the drill bit 51 and the pre-contact with the valve body flange, and perform an advanced drilling operation on the workpiece. After the drill bit 51 drills into the workpiece, the floating drill barrel 52 contacts the valve body flange during synchronous rotation. By using the setting of the guiding and distance-adjusting member 53, the floating drill barrel 52 is in a relatively floating state, so that during the rotation of the floating drill barrel 52, a pre-drilling groove mark is formed on the valve body flange. When the guiding and distance-adjusting member 53 reaches the distance-adjusting limit, the floating drill barrel 52 drills in the pre-drilling groove mark, cooperate with the advanced drilling operation of the drill bit 51, so that the drill bit 51 and the floating drill barrel 52 are in a stable axial position, so as to reduce the vibration force during the overall drilling process.

[0040] During operation, the staff places the metal casting valve body on the workpiece rotator 6 and locks it. Then, the output shaft of the lifting cylinder 41 is extended and retracted to drive the mounting box 43 and the servo motor 44 to move downward, and the output shaft of the servo motor 44 is rotated to make the drill bit 51 and the floating drill barrel 52 rotate. By using the rotation of the drill bit 51 and the pre-contact with the valve body flange, an advanced drilling operation is performed on the workpiece. After the drill bit 51 drills into the workpiece, the cutting tooth 525 contacts the valve body flange during synchronous rotation. By using the guiding and distance-adjusting member 53, the drill barrel 522 is in a relatively floating state and approaches the fixed barrel 521, so that during the rotation of the cutting tooth 525, a pre-drilling groove mark is formed on the valve body flange. When the guiding and distance-adjusting member 53 reaches the distance-adjusting limit, the cutting tooth 525 and the drill barrel 522 drill in the pre-drilling groove mark, cooperate with the advanced drilling operation of the drill bit 51, so that the drill bit 51 and the floating drill barrel 52 are in a stable axial position, drill through the drilling position of the valve body flange, and make the drilling waste fall into the waste discharge hopper 3 for discharge. Then, the workpiece rotator 6 is used to drive the valve body to rotate, adjust the drilling position and repeat the drilling process. After the drilling of the valve body flange is completed, the valve body is removed and the next processing procedure can be carried out.

[0041] The second embodiment, on the basis of the first embodiment, please refer to Figures 4 to 9As shown in the figure, the guiding distance adjusting member 53 includes a connecting plate 531. One side surface of the connecting plate 531 is fixed to the outer edge surface of the fixed cylinder 521. A guiding cylinder 532 is fixedly connected to the bottom surface of the connecting plate 531. A collar is fixedly installed on the bottom end of the inner edge surface of the guiding cylinder 532. A pressure rod 533 is slidably fitted on the inner edge surface of the collar. The bottom surface of the pressure rod 533 is fixedly connected to a bottom plate 534. One side surface of the bottom plate 534 is fixed to the outer edge surface of the drill cylinder 522. The top of the pressure rod 533 is fixedly connected to a distance adjusting spring member 535. The top of the distance adjusting spring member 535 is fixed to the top of the inner cavity of the guiding cylinder 532;

[0042] A centering collar 528 is fixedly installed on the inner edge surface of the drill cylinder 522. The inner edge surface of the centering collar 528 is slidably fitted with the outer edge surface of the drill bit 51. Chip discharge grooves 526 are formed on the outer edge surface of the drill cylinder 522. A guiding inclined plate 527 is fixedly installed on the inner edge surface of the drill cylinder 522, and the guiding inclined plate 527 is arranged inside the chip discharge grooves 526. A limiting plate 523 is fixedly installed on the outer edge surface of the fixed cylinder 521. A limiting groove 524 is formed on the outer edge surface of the drill cylinder 522, and the outer edge surface of the limiting plate 523 is slidably fitted with the inner wall of the limiting groove 524. By using the extrusion force generated by the flange contact of the cutting teeth 525, the drill cylinder 522 slides outside the drill bit 51, and the bottom plate 534 and the pressure rod 533 are pushed to move, so that the pressure rod 533 slides in the guiding cylinder 532 to extrude and deform the distance adjusting spring member 535, adjusting the relative position between the drill cylinder 522 and the drill bit 51, deepening the depth of the pre-drilling groove marks. At the same time, the centering collar 528 is used to limit the drill bit 51, so that the center lines of the drill bit 51 and the drill cylinder 522 are kept consistent. Furthermore, the drilling effect is enhanced by the combined action of the drill bit 51 and the drill cylinder 522, thereby ensuring the drilling quality and efficiency of the valve body flange. Through the synchronous rotation of the drill bit 51 and the drill cylinder 522, the guiding inclined plate 527 is used to guide the drilling debris, so that the debris is discharged through the chip discharge grooves 526, discharging the drilling debris generated, preventing the debris from blocking and affecting the overall drilling effect, so as to ensure the drilling efficiency.

[0043] During operation, by using the extrusion force generated by the contact of the cutting teeth 525 with the flange, the drill cylinder 522 slides outside the drill bit 51, and the bottom plate 534 and the pressure rod 533 are pushed to move, so that the pressure rod 533 slides in the guiding cylinder 532 to extrude and deform the distance adjusting spring member 535, adjusting the relative position between the drill cylinder 522 and the drill bit 51, deepening the depth of the pre-drilling groove marks. The centering collar 528 is used to limit the drill bit 51, so that the center lines of the drill bit 51 and the drill cylinder 522 are kept consistent. Then, the drilling effect is enhanced by the combined action of the drill bit 51 and the drill cylinder 522. At the same time, through the synchronous rotation of the drill bit 51 and the drill cylinder 522, the guiding inclined plate 527 is used to guide the drilling debris, so that the debris is discharged through the chip discharge grooves 526, discharging the drilling debris generated.

[0044] Third Embodiment. On the basis of the first and second embodiments, please refer to Figures 10 to 12 As shown, the workpiece rotator 6 includes a turntable 61. The bottom surface of the turntable 61 is adapted to rotate with the top of the frame 1. A driving motor 62 is provided on the bottom surface of the turntable 61. The top of the driving motor 62 is fixed to the top of the inner cavity of the frame 1. The output shaft of the driving motor 62 passes through the frame 1 and is adapted to rotate with the inner wall of the frame 1. The end of the output shaft of the driving motor 62 is fixed to the bottom surface of the turntable 61. A through groove 66 is formed in the top of the turntable 61, and the inner diameter value of the through groove 66 is equal to the outer diameter value of the drill barrel 522. A mounting plate 63 is fixedly installed on the outer edge surface of the turntable 61. Symmetrically arranged clamping cylinders 64 are fixedly installed on the inner surface of the mounting plate 63. The end of the output shaft of the clamping cylinder 64 is fixedly connected with an arc-shaped clamping plate 65. The bottom surface of the arc-shaped clamping plate 65 slides on the top of the turntable 61. A rotating groove 7 is formed in the top of the frame 1. A rotating ring 67 is fixedly installed on the bottom of the turntable 61. The outer edge surface of the rotating ring 67 slides adaptively with the inner wall of the rotating groove 7. A ball 68 is rotatably installed on the bottom inner wall of the rotating ring 67. The outer edge surface of the ball 68 slides on the bottom surface of the inner wall of the rotating groove 7. The arc-shaped clamping plate 65 is driven by the clamping cylinder 64 to move to lock the valve body, so that the valve body is centered for drilling. Then, the driving motor 62 drives the turntable 61 to rotate, and cooperates with the sliding of the rotating ring 67 in the rotating groove 7 to ensure the stability when driving the valve body to rotate. Moreover, the friction when the turntable 61 rotates is reduced by the arrangement of the ball 68, thereby ensuring the efficiency of the drilling process.

[0045] During operation, the arc-shaped clamping plate 65 is driven to move by the telescopic movement of the output shaft of the clamping cylinder 64 to lock the valve body, so that the valve body is centered and waiting for drilling. Then, the output shaft of the driving motor 62 rotates to drive the turntable 61 to rotate, and the friction when the turntable 61 rotates is reduced by the sliding of the rotating ring 67 and the ball 68 in the rotating groove 7, ensuring the drilling efficiency.

[0046] Next, the working principle of the metal casting valve body drilling equipment that is easy to adjust will be specifically described.

[0047] During use, the staff places the metal casting valve body on the turntable 61, and then drives the arc-shaped clamping plate 65 to move through the telescopic movement of the output shaft of the clamping cylinder 64 to lock the valve body, making the valve body centered and waiting for drilling. The output shaft of the lifting cylinder 41 is telescoped to drive the mounting box 43 and the servo motor 44 to move downward, and the output shaft of the servo motor 44 is rotated to make the drill bit 51 and the floating drill barrel 52 rotate. The drill bit 51 rotates to make pre-contact with the valve body flange for an advanced drilling operation on the workpiece. After the drill bit 51 drills into the workpiece, the extrusion force generated by the cutting teeth 525 contacting the valve body flange during synchronous rotation causes the drill barrel 522 to slide outside the drill bit 51, and pushes the bottom plate 534 and the pressure rod 533 to move, making the pressure rod 533 slide in the guide cylinder 532 to squeeze and deform the distance-adjusting spring member 535, adjusting the relative position between the drill barrel 522 and the drill bit 51, and deepening the depth of the pre-drilling groove. The centering collar 528 is used to limit the drill bit 51 to keep the center lines of the drill bit 51 and the drill barrel 522 consistent. Then, the drill bit 51 and the drill barrel 522 work together to enhance the drilling effect. When the guiding distance-adjusting member 53 reaches the distance-adjusting limit, the cutting teeth 525 and the drill barrel 522 are used to drill in the pre-drilling groove, cooperating with the advanced drilling operation of the drill bit 51 to keep the drill bit 51 and the floating drill barrel 52 in a stable axial position, drilling through the drilling position of the valve body flange, and making the drilling waste fall into the waste discharge hopper 3 for discharge. Then, the output shaft of the driving motor 62 is rotated to drive the turntable 61 to rotate, and the sliding of the rotating ring 67 and the ball 68 in the rotating groove 7 is used to reduce the friction force when the turntable 61 rotates, driving the valve body to rotate, adjusting the drilling position and repeating the drilling process. After the drilling of the valve body flange is completed, the valve body can be removed for the next processing step.

[0048] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A metal casting valve body drilling device that is convenient for adjustment, characterized in that, It includes a frame (1), on the top of which an installation frame (2) is fixedly installed. Scrap discharge hoppers (3) are fixedly installed on both sides of the frame (1). A driver (4) is installed on the top of the installation frame (2), and a drill (5) is installed at the output end of the driver (4). The driver (4) is used to drive the drill (5) to drill the metal casting valve body. A workpiece rotator (6) is installed on the top of the frame (1), and the workpiece rotator (6) is used to support the metal casting valve body to assist in the drilling process, and the workpiece rotator (6) is arranged below the drill (5). Among them, the drill (5) includes a drill bit (51), the drill bit (51) is installed at the output end of the driver (4), a floating drill cylinder (52) is installed outside the drill bit (51), and a guiding and distance-adjusting member (53) is installed on the outer edge surface of the floating drill cylinder (52). The floating drill cylinder (52) includes a fixed cylinder (521), the top of the fixed cylinder (521) is connected to the output end of the driver (4), the top of the drill bit (51) is fixed to the top of the inner cavity of the fixed cylinder (521). A drill cylinder (522) is arranged below the fixed cylinder (521), the guiding and distance-adjusting member (53) is installed on the outer edge surfaces of the fixed cylinder (521) and the drill cylinder (522), and cutting teeth (525) are fixedly installed on the bottom surface of the drill cylinder (522) to form a pre-drilling groove mark on the valve body flange.

2. The drilling device for a metal casting valve body that is easy to adjust according to claim 1, wherein: The driver (4) includes a bearing plate (42), the bottom surface of the bearing plate (42) is fixed to the top of the installation frame (2), symmetrically arranged lifting cylinders (41) are fixedly installed on the top of the bearing plate (42), the output shafts of the lifting cylinders (41) penetrate through the bearing plate (42) and slide with the inner wall of the bearing plate (42). The end of the output shaft of the lifting cylinder (41) is fixedly connected to an installation box (43), a servo motor (44) is fixedly installed in the inner cavity of the installation box (43), and a limiting member (45) is installed on the outer surface of the installation box (43).

3. The drilling device for the metal casting valve body that is easy to adjust according to claim 2, wherein: The limiting member (45) includes a fixed block (451), the top of the fixed block (451) is fixed to the bottom surface of the bearing plate (42), a limiting rod (452) is fixedly installed on the bottom surface of the fixed block (451), a sliding sleeve plate (453) is slidably fitted on the outer edge surface of the limiting rod (452), and one side surface of the sliding sleeve plate (453) is fixed to the outer edge surface of the installation box (43).

4. The drilling device for the metal casting valve body that is easy to adjust according to claim 3, wherein: The guiding distance adjusting member (53) includes a connecting plate (531). One side surface of the connecting plate (531) is fixed to the outer edge surface of the fixed cylinder (521). A guiding cylinder (532) is fixedly connected to the bottom surface of the connecting plate (531). A collar is fixedly installed on the bottom end of the inner edge surface of the guiding cylinder (532). A pressure rod (533) is slidably fitted on the inner edge surface of the collar. The bottom surface of the pressure rod (533) is fixedly connected to a bottom plate (534). One side surface of the bottom plate (534) is fixed to the outer edge surface of the drill cylinder (522). A distance adjusting spring member (535) is fixedly connected to the top of the pressure rod (533). The top of the distance adjusting spring member (535) is fixed to the top of the inner cavity of the guiding cylinder (532).

5. The drilling device for a metal casting valve body that is easy to adjust according to claim 4, characterized in that: A centralizing collar (528) is fixedly installed on the inner edge surface of the drill cylinder (522). The inner edge surface of the centralizing collar (528) is slidably fitted with the outer edge surface of the drill bit (51).

6. The drilling device for the metal casting valve body that is convenient to adjust according to claim 5, wherein: A chip removal groove (526) is formed on the outer edge surface of the drill cylinder (522). A guiding inclined plate (527) is fixedly installed on the inner edge surface of the drill cylinder (522), and the guiding inclined plate (527) is arranged inside the chip removal groove (526).

7. The drilling device for the metal casting valve body that is easy to adjust according to claim 6, wherein: A limiting plate (523) is fixedly installed on the outer edge surface of the fixed cylinder (521). A limiting groove (524) is formed on the outer edge surface of the drill cylinder (522), and the outer edge surface of the limiting plate (523) is slidably fitted with the inner wall of the limiting groove (524).

8. The drilling device for the metal casting valve body that is convenient to adjust according to claim 1, wherein: The workpiece rotator (6) includes a turntable (61). The bottom surface of the turntable (61) is rotatably fitted with the top of the machine frame (1). A driving motor (62) is arranged on the bottom surface of the turntable (61). The top of the driving motor (62) is fixed to the top of the inner cavity of the machine frame (1), and the output shaft of the driving motor (62) penetrates through the machine frame (1) and is rotatably fitted with the inner wall of the machine frame (1). The end of the output shaft of the driving motor (62) is fixed to the bottom surface of the turntable (61). A through groove (66) is formed on the top of the turntable (61), and the inner diameter value of the through groove (66) is equal to the outer diameter value of the drill cylinder (522).

9. The drilling device for a metal casting valve body that is convenient to adjust according to claim 8, wherein: Mounting plates (63) are fixedly installed on the outer edge surface of the turntable (61). Symmetrically arranged clamping cylinders (64) are fixedly installed on the inner side surfaces of the mounting plates (63). The end of the output shaft of the clamping cylinder (64) is fixedly connected to an arc-shaped clamping plate (65). The bottom surface of the arc-shaped clamping plate (65) slides on the top of the turntable (61).

10. The drilling device for a metal casting valve body that is easy to adjust according to claim 9, characterized in that: A rotating groove (7) is formed on the top of the machine frame (1). A rotating ring (67) is fixedly installed on the bottom of the turntable (61). The outer edge surface of the rotating ring (67) is slidably fitted with the inner wall of the rotating groove (7). A ball (68) is rotatably installed on the bottom inner wall of the rotating ring (67). The outer edge surface of the ball (68) slides on the bottom surface of the inner wall of the rotating groove (7).

Images