A device for fine machining inner wall of valve seat inner hole

Abstract

The present invention discloses a device for fine-machining the inner wall of an inner hole of a valve seat, relates to the technical field of valve seat machining, and aims to solve the technical problem of low efficiency of machining valve seats by existing machining devices. The device comprises a base. The present invention improves the structure of the existing valve seat machining device by arranging a rotating mechanism on the base, arranging a loading plate and a unloading plate on both sides of the rotating mechanism, and then arranging the valve seat to be machined from the loading plate to the rotating mechanism through a supporting mechanism through a conveying mechanism. The rotating mechanism rotates to rotate the valve seat to the bottom end of the grinding mechanism, and the grinding mechanism is adjusted to two fine-machining states, namely, an inner wall grinding state or an inner hole grinding state, through an adjusting component of the grinding mechanism. Compared with existing machining devices or manual grinding, the present invention can efficiently complete the grinding of the inner wall or the inner hole in one go, thereby greatly improving production efficiency, and adapting to the inner wall machining needs of valve seats of different sizes and shapes, with strong adaptability and flexibility, which is beneficial to actual production.

Description

Technical Field

[0001] The invention relates to the technical field of valve seat processing, and more specifically to a device for fine processing the inner wall of an inner hole of a valve seat. Background Art

[0002] The valve seat is a key component in the valve. It is located inside the valve body and cooperates with the valve core (also called valve disc, gate, etc.) to control the flow of fluids (such as liquids, gases or steam). The main function of the valve seat is to ensure the sealing performance of the valve and prevent the fluid from leaking when the valve is closed. The valve seat is usually designed to be a shape that fits closely with the valve core. It can be a flat, conical, spherical or other special shapes. When the valve core is closed, it will fit tightly with the valve seat to form a sealing surface to prevent the fluid from passing through. During the design and manufacturing process of the valve, the shape, size and material selection of the valve seat need to be carefully designed and rigorously tested to ensure the performance and reliability of the valve.

[0003] However, in the current valve manufacturing process, the processing and grinding of the inner wall and inner hole of the valve seat face some technical challenges. The existing processing equipment often cannot adapt to the complex geometric shape and size changes of the inner wall of the valve seat. Especially when processing the inner wall and inner hole, the existing mechanical processing tools are difficult to achieve the ideal processing effect; in view of the above problems, the processing and grinding of the inner wall and inner hole of the valve seat currently mainly rely on manual methods. Operators need to use professional grinding tools to grind the inner wall of the valve seat one by one to ensure that it meets the accuracy requirements. However, manual grinding has the following disadvantages: Low processing efficiency: Manual grinding takes a lot of time and manpower, especially for large-scale valve seat production, this processing method is difficult to meet production needs. Unstable processing quality: Due to the uncertainty of human operation, the processing quality of manual grinding is difficult to maintain consistency, which may cause some valve seats to fail to meet the accuracy requirements. High labor intensity of workers: Manual grinding requires workers to maintain a high degree of concentration for a long time, which is a great test of workers' physical strength and energy.

[0004] Therefore, developing an efficient and automated finishing device that can adapt to the complex shape and size changes of the inner wall of the valve seat and meet various processing requirements is of great significance to improving the production efficiency and processing quality of the valve manufacturing industry. In view of this, we propose a finishing processing device for the inner wall of the inner hole of the valve seat. Summary of the invention

[0005] The object of the present invention is to provide a device for fine machining the inner wall of the inner hole of a valve seat, so as to solve the technical problem that the existing machining device has low efficiency in machining the valve seat.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for finishing the inner wall of the inner hole of a valve seat, comprising a base, a conveying mechanism is provided at the top of the base, a rotating mechanism is provided at the top of the base close to the conveying mechanism, a loading plate is provided at one end of the base close to the rotating mechanism, a unloading plate is provided at the top of the base away from the other end close to the rotating mechanism, a lifting mechanism is hoisted at a position above the conveying mechanism close to the loading plate and the unloading plate, a supporting mechanism is hoisted on the lifting mechanism, and a grinding mechanism is also provided at a position above the conveying mechanism close to the rotating mechanism; the grinding mechanism comprises a cylinder C, a reduction motor B, a connecting rod, an adjusting assembly, an inner hole grinding piece and an inner wall grinding piece, the cylinder C is arranged on the conveying mechanism, the reduction motor B is connected to the bottom output end of the cylinder C, and the connecting rod is connected to At the bottom output end of the reduction motor B, the inner wall grinding piece is connected to the bottom end of the connecting rod, the adjusting assembly is arranged on the inner wall grinding piece, and the inner hole grinding piece is arranged on the inner wall grinding piece; the inner wall grinding piece includes a chassis, an outer ring, an inner ring, a through slot, a rack, a first grinding block, a pulley, an inner gear ring and a gear A. The chassis is connected to the bottom end of the connecting rod, the outer ring is arranged on the chassis, the inner ring is arranged on the chassis, the through slot is annularly arranged on the outer ring and the inner ring at equal intervals, the rack is movably inserted in the through slot, the first grinding block is connected to the outer end of the rack, the pulley is annularly arranged on the outer ring at equal intervals, the inner gear ring rotates and is connected to the outer ring through the pulley, the gear A is annularly arranged on the chassis at equal intervals, and the gear A is meshed with the inner gear ring and the rack.

[0007] Preferably, the transport mechanism includes a support frame, a cylinder A, a rotating bearing and a rotating arm, the support frame is arranged at a position at the top of the base close to one side of the rotating mechanism, the cylinder A is symmetrically arranged at the top of the support frame, the rotating bearing is symmetrically rotatably arranged at the top of the support frame, one end of the rotating arm is connected to the output end of the cylinder A, and the other end of the rotating arm is connected to the top of the rotating bearing, the lifting mechanism is connected to the bottom end of the rotating bearing, and the grinding mechanism is arranged at a position at the top of the support frame close to between the two rotating bearings.

[0008] Preferably, the rotating mechanism includes a reduction motor A, a bearing tray and a bearing seat, the reduction motor A is arranged at a position of the base close to one side of the support frame, the bearing tray is rotatably connected to the output end of the reduction motor A, the bearing seats are arranged in a circular shape at equal intervals on the bearing tray, and the bearing seat is arranged on the bearing tray close to the bottom of the grinding mechanism.

[0009] Preferably, the lifting mechanism includes a mounting block, a mounting plate, a cylinder B and a servo motor A, the mounting block is connected to the bottom end of the rotating bearing, the mounting plate is connected to the mounting block, the cylinder B is arranged at one end of the mounting plate close to the mounting block, the servo motor A is connected to one end of the mounting plate away from the mounting block, and the supporting mechanism is hoisted at a position below the bottom end of the mounting plate close to the servo motor A.

[0010] Preferably, the supporting mechanism includes a hanging frame, a driving disk, a slide rail, a slider, and a supporting block. The hanging frame is connected to the bottom of the mounting plate near the position below the servo motor A, the driving disk is connected to the hanging frame, the slide rail is connected to the bottom of the hanging frame in a circular shape with equal intervals, the slider is slidably connected to the slide rail, one end of the supporting block is connected to the slider, and the other end of the supporting block is movably connected to the driving disk.

[0011] Preferably, a center hole is provided on the lifting frame, the driving disk is rotatably connected to the center hole, a curved groove is provided on the driving disk, a sliding rod is provided at one end of the supporting block close to the driving disk, the sliding rod is slidably connected to the curved groove, and the output end of the servo motor A is connected to the driving disk.

[0012] Preferably, the adjustment assembly includes a gear B, a servo motor B and a driving gear, the gear B is connected to the top of the gear A, the servo motor B is connected to the top of the gear B, the driving gear is rotatably connected to the top of the inner ring, and the gear B is meshed with the driving gear.

[0013] Preferably, the inner hole grinding part includes a support ring, a rotating disk, a connecting block, an arc groove, a through hole, a movable rod, a movable rod and a second grinding block, the support ring is arranged on the chassis, the rotating disk is rotatably connected to the top of the support ring, one end of the connecting block is connected to the bottom end of the rotating disk, and the other end of the connecting block is connected to the inner wall of the driving gear, the arc groove is symmetrically opened on the rotating disk, the through hole is symmetrically opened on the support ring, the movable rod is slidably connected to the arc groove, the movable rod is movably inserted in the through hole, the inner end of the movable rod is connected to the bottom end of the movable rod, and the second grinding block is connected to the outer end of the movable rod.

[0014] The present invention also provides a method for machining a valve seat inner hole inner wall finishing machining device, comprising the following steps:

[0015] S1, positioning operation;

[0016] The stroke of the driving cylinder A drives the rotating arm to drive the rotating bearing to rotate. The rotation of the rotating bearing causes the cylinder B of the lifting mechanism to rotate to just above the valve seat on the loading plate. The stroke of the cylinder B causes the servo motor A and the supporting mechanism to descend.

[0017] S2, inner support taking operation;

[0018] The servo motor A is driven to drive the driving disk to rotate, and the driving disk rotates to rotate the curved groove, and the curved groove moves the slide bar and the support block, and the support block drives the slide block to slide on the slide rail, so that the support block is opened and fixed on the inner hole of the valve seat;

[0019] S3, loading operation;

[0020] The return stroke of driving cylinder A causes the rotating arm to drive the rotating bearing to rotate, and the rotation of the rotating bearing causes cylinder B of the lifting mechanism to rotate to above the bearing seat of the bearing tray. The stroke of cylinder B causes servo motor A and the support mechanism to descend, and the servo motor A is driven again to drive the driving disk to reverse. The rotation of the driving disk causes the curved groove to rotate, and the curved groove causes the slide bar and the support block to move. The support block drives the slider to slide on the slide rail, so that the support block is contracted on the inner hole of the valve seat, so that the valve seat is placed on the bearing seat;

[0021] S4, rotation operation;

[0022] Drive the reduction motor A to rotate so that the bearing tray rotates, and the bearing tray drives the bearing seat and the valve seat to rotate to the position directly below the grinding mechanism;

[0023] S5, grinding operation;

[0024] Grind the inner wall or inner hole of the valve seat according to the need and select the appropriate grinding state;

[0025] S5.1. If the inner wall of the valve seat needs to be polished, drive the servo motor B to rotate so that gear B and gear A rotate, gear A meshes with the inner gear ring so that the inner gear ring rotates in the groove at the top of the outer ring through the pulley, and the inner gear ring drives several gears A to rotate synchronously, gear A meshes with the rack so that the rack slides outward on the through-slots of the outer ring and the inner ring, so that the rack drives the first polishing block to expand, which is used to polish the inner wall with a larger aperture at the top of the valve seat;

[0026] S5.2. If the inner hole of the valve seat needs to be polished, the servo motor B is driven to rotate so that the gear B rotates, and the gear B meshes with the driving gear to make the driving gear reverse. The driving gear rotates through the connecting block to drive the rotating disk at the top to rotate on the supporting ring. The rotation of the rotating disk causes the two symmetrically opened arc grooves to rotate. The limit of the arc groove causes the moving rod to drive the movable rod and the second polishing block to move and intersect on the through hole, thereby realizing the contraction of the second polishing block, which is used to polish the inner hole on the inner wall of the valve seat;

[0027] S6, unloading operation;

[0028] Driving the reduction motor A to rotate causes the bearing tray to rotate, and the bearing tray drives the bearing seat and the finely machined valve seat to rotate to the position on one side of the blanking plate; driving the cylinder A stroke drives the rotating arm to drive the rotating bearing to rotate, and the rotating bearing rotates to rotate the cylinder B of the lifting mechanism to the position directly above the finely machined valve seat; the cylinder B stroke causes the servo motor A and the support mechanism to descend, driving the servo motor A to drive the driving disk to rotate, and the driving disk rotates to rotate the curved groove, and the curved groove moves the slide bar and the support block, and the support block drives the slider to slide on the slide rail. , so that the support block can be opened and fixed on the inner hole of the valve seat; the return stroke of driving cylinder A drives the rotating arm to drive the rotating bearing to rotate, and the rotation of the rotating bearing causes the cylinder B of the lifting mechanism to rotate to above the blanking plate. The stroke of cylinder B causes the servo motor A and the support mechanism to descend, and the servo motor A is driven again to drive the driving disk to reverse. The rotation of the driving disk causes the curved groove to rotate, and the curved groove causes the slide bar and the support block to move. The support block drives the slider to slide on the slide rail, so that the support block can be contracted on the inner hole of the valve seat, so that the processed valve seat is placed on the blanking plate.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention improves the structure of the existing valve seat processing device by arranging a rotating mechanism on the base, arranging a loading plate and a unloading plate on both sides of the rotating mechanism, and then using a conveying mechanism to arrange the valve seat to be processed from the loading plate to the rotating mechanism through a supporting mechanism. The rotating mechanism rotates to rotate the valve seat to the bottom end of the grinding mechanism, and the grinding mechanism is adjusted to two finishing states of inner wall grinding or inner hole grinding through an adjusting component. Compared with the existing processing device or manual grinding, the present invention can efficiently complete the grinding of the inner wall or inner hole in one time, greatly improving the production efficiency, and adapting to the inner wall processing requirements of valve seats of different sizes and shapes, with strong adaptability and flexibility, which is conducive to actual production.

[0031] 2. The present invention arranges a lifting frame at a position below the servo motor A at the bottom end of the mounting plate, a center hole is opened on the lifting frame, a driving disk is rotatably connected to the center hole, the driving disk is provided with four curved grooves at equal intervals in a ring shape, and the bottom end of the lifting frame relative to the outer side of the driving disk is also provided with four sets of slide rails, sliders and supporting blocks at equal intervals in a ring shape, the inner end of the supporting block is connected with a slide bar, and the slide bar is movably inserted in the curved groove. When the valve seat needs to be taken, the servo motor A is driven to drive the driving disk to rotate, and the rotation of the driving disk causes the curved groove to rotate, and the curved groove causes the slide bar and the supporting block to move, and the supporting block drives the slide bar to slide on the slide rail, so that the supporting block can be opened or contracted, thereby realizing the transportation of the valve seat. The internal supporting and taking structure of the present invention has a more accurate positioning effect than the traditional grasping, is more stable and conducive to accurate placement, and a flexible rubber sleeve can be further provided on the inner side of the supporting block to ensure that the supporting block has better protection during internal support and taking, thereby solving the problem that the traditional grasping is easy to damage the surface of the workpiece, improving the positioning effect and further improving the efficiency.

[0032] 3. The present invention arranges gear B at the top of gear A, arranges servo motor B at the top of gear B, drives servo motor B to rotate, so that gear B and gear A rotate, gear A meshes with inner gear ring so that the inner gear ring rotates in the groove at the top of the outer ring through the pulley, the inner gear ring drives several gears A to rotate synchronously, gear A meshes with rack so that the rack slides outward on the through-slots of the outer ring and the inner ring, so that the rack drives the first grinding block to expand, which is used for grinding the inner wall with larger aperture at the top of the valve seat. The present invention enables the first grinding block to have the effect of flexibly changing the grinding size, adapts to the processing requirements of valve seat inner holes of different sizes and shapes, has strong adaptability and flexibility, and further optimizes the valve seat finishing efficiency.

[0033] 4. The present invention arranges a support ring on the chassis, and rotatably arranges a rotating disk on the support ring. When the servo motor B is driven to rotate so that the gear B rotates, the gear B meshes with the driving gear to reverse the driving gear. The driving gear rotates and drives the rotating disk at the top to rotate on the support ring through the connecting block. The rotation of the rotating disk causes the two symmetrically opened arc grooves to rotate. The limiting of the arc groove allows the moving rod to drive the movable rod and the second grinding block to move and intersperse on the through hole. When the first grinding block is expanded, the second grinding block is contracted, and when the first grinding block is contracted, the second grinding block is expanded. Compared with the existing valve seat grinding device, the present invention can achieve high dimensional accuracy, high geometric shape accuracy and low surface roughness by precisely controlling the inner wall grinding or inner hole grinding process, and has high-efficiency finishing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of the valve seat processed by the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 3 It is a front view structural schematic diagram of the present invention;

[0037] Figure 4 It is a schematic diagram of the lifting mechanism and the supporting mechanism of the present invention;

[0038] Figure 5 It is a schematic diagram of the bottom structure of the supporting mechanism of the present invention;

[0039] Figure 6 It is a schematic diagram of the disassembled structure of the support and taking mechanism of the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the grinding mechanism of the present invention;

[0041] Figure 8 It is a partial structural schematic diagram of the grinding mechanism of the present invention;

[0042] Fig. 9 It is a schematic diagram of the structure of the adjustment component, the inner hole grinding piece and the inner wall grinding piece of the present invention;

[0043] Fig.10 It is a schematic diagram of the structure of the adjustment component, the inner hole grinding piece and the inner wall grinding piece of the present invention;

[0044] Fig.11 This is a schematic diagram of the split structure of the inner wall grinding piece of the present invention;

[0045] Fig.12 This is a schematic diagram of the use state of processing the top end of the inner wall of the valve seat of the present invention;

[0046] Fig.13 A schematic diagram of the use state of processing the inner hole of the valve seat of the present invention;

[0047] Fig.14 This is a schematic diagram of the use state of processing the bottom end of the inner wall of the valve seat of the present invention;

[0048] Description of the numbers in the figure:

[0049] 1. Base; 2. Transport mechanism; 3. Rotation mechanism; 4. Loading plate; 5. Unloading plate; 6. Lifting mechanism; 7. Supporting and taking mechanism; 8. Grinding mechanism;

[0050] 201, support frame; 202, cylinder A; 203, rotary bearing; 204, rotary arm;

[0051] 301, reduction motor A; 302, bearing tray; 303, bearing seat;

[0052] 601, mounting block; 602, mounting plate; 603, cylinder B; 604, servo motor A;

[0053] 701, hoisting frame; 702, driving plate; 703, slide rail; 704, slider; 705, support block; 706, center hole; 707, curved groove; 708, slide rod;

[0054] 801, cylinder C; 802, reduction motor B; 803, connecting rod; 804, adjustment component; 805, inner hole polishing part; 806, inner wall polishing part;

[0055] 8041, gear B; 8042, servo motor B; 8043, driving gear;

[0056] 8051, support ring; 8052, rotating disk; 8053, connecting block; 8054, arc groove; 8055, through hole; 8056, moving rod; 8057, movable rod; 8058, second grinding block;

[0057] 8061, chassis; 8062, outer ring; 8063, inner ring; 8064, slot; 8065, rack; 8066, first grinding block; 8067, pulley; 8068, inner gear ring; 8069, gear A. DETAILED DESCRIPTION

[0058] like Figures 1 to 14As shown, the present invention relates to a device for fine machining the inner wall of the inner hole of a valve seat, comprising a base 1, a conveying mechanism 2 is provided at the top of the base 1, a rotating mechanism 3 is provided at the top of the base 1 near the conveying mechanism 2, a loading plate 4 is provided at one end of the top of the base 1 near the rotating mechanism 3, a discharge plate 5 is provided at the other end of the top of the base 1 away from the rotating mechanism 3, a lifting mechanism 6 is hoisted at a position above the conveying mechanism 2 near the loading plate 4 and the discharge plate 5, a supporting mechanism 7 is hoisted on the lifting mechanism 6, and a lifting mechanism 7 is hoisted on the conveying mechanism 2 near the rotating mechanism 3. A grinding mechanism 8 is also provided above the mechanism 3; the grinding mechanism 8 includes a cylinder C801, a reduction motor B802, a connecting rod 803, an adjusting component 804, an inner hole grinding piece 805 and an inner wall grinding piece 806. The cylinder C801 is provided on the conveying mechanism 2, the reduction motor B802 is connected to the bottom output end of the cylinder C801, the connecting rod 803 is connected to the bottom output end of the reduction motor B802, the inner wall grinding piece 806 is connected to the bottom end of the connecting rod 803, and the adjusting component 804 is provided at the inner wall grinding piece. The inner hole grinding piece 805 is arranged on the inner wall grinding piece 806; the inner wall grinding piece 806 includes a chassis 8061, an outer ring 8062, an inner ring 8063, a through slot 8064, a rack 8065, a first grinding block 8066, a pulley 8067, an inner gear ring 8068 and a gear A8069, the chassis 8061 is connected to the bottom end of the connecting rod 803, the outer ring 8062 is arranged on the chassis 8061, the inner ring 8063 is arranged on the chassis 8061, and the through slot 8064 is annular Equally spaced openings are provided on the outer ring 8062 and the inner ring 8063, the rack 8065 is movably inserted in the through-slot 8064, the first grinding block 8066 is connected to the outer end of the rack 8065, the pulleys 8067 are arranged in a ring shape and at equal intervals on the outer ring 8062, the inner gear ring 8068 is rotatably connected to the outer ring 8062 through the pulley 8067, the gear A8069 is arranged in a ring shape and at equal intervals on the chassis 8061, and the gear A8069 is meshed and connected with the inner gear ring 8068 and the rack 8065. The present invention improves the structure of the existing valve seat processing device by arranging a rotating mechanism 3 on a base 1, arranging a loading plate 4 and a unloading plate 5 on both sides of the rotating mechanism 3, and then using a conveying mechanism 2 to arrange the valve seat to be processed from the loading plate 4 to the rotating mechanism 3 through a supporting mechanism 7. The rotating mechanism 3 rotates to rotate the valve seat to the bottom end of the grinding mechanism 8, and the grinding mechanism 8 is adjusted to two finishing states of inner wall grinding or inner hole grinding through an adjusting component 804. Compared with existing processing devices or manual grinding, the present invention can efficiently complete the grinding of the inner wall or inner hole in one go, greatly improving production efficiency, and adapting to the inner wall processing requirements of valve seats of different sizes and shapes, with strong adaptability and flexibility, which is beneficial to actual production.

[0059] In an embodiment of the present invention, the transport mechanism 2 includes a support frame 201, a cylinder A202, a rotating bearing 203 and a rotating arm 204. The support frame 201 is arranged at a position at the top of the base 1 close to one side of the rotating mechanism 3. The cylinder A202 is symmetrically arranged at the top of the support frame 201. The rotating bearing 203 is symmetrically rotated and arranged at the top of the support frame 201. One end of the rotating arm 204 is connected to the output end of the cylinder A202, and the other end of the rotating arm 204 is connected to the top of the rotating bearing 203. The lifting mechanism 6 is connected to the bottom of the rotating bearing 203, and the grinding mechanism 8 is arranged at a position at the top of the support frame 201 close to the two rotating bearings 203. The rotating mechanism 3 includes a reduction motor A301, a bearing tray 302 and a bearing seat 303. The reduction motor A301 is arranged at a position on the base 1 close to one side of the support frame 201. The bearing tray 302 is rotatably connected to the output end of the reduction motor A301. The bearing seats 303 are arranged on the bearing tray 302 in a circular shape with equal spacing. The bearing seats 303 are arranged on the bearing tray 302 close to the lower part of the grinding mechanism 8. The present invention sets a support frame 201 at a position close to one side of the rotating mechanism 3 at the top of the base 1, and symmetrically sets two cylinders A202 on the support frame 201. The stroke and return stroke of the driving cylinder A202 can make the rotating arm 204 drive the rotating bearing 203 to rotate. The rotation of the rotating bearing 203 makes the lifting mechanism 6 rotate to rotate. Compared with the traditional manual processing of valve seats, the present invention has higher handling speed and operation efficiency, and can quickly and continuously grasp and place the valve seat without rest, thereby significantly improving production efficiency.

[0060] As another embodiment of the present invention, the lifting mechanism 6 includes a mounting block 601, a mounting plate 602, a cylinder B603 and a servo motor A604. The mounting block 601 is connected to the bottom end of the rotating bearing 203, the mounting plate 602 is connected to the mounting block 601, the cylinder B603 is arranged at one end of the mounting plate 602 close to the mounting block 601, the servo motor A604 is connected to one end of the mounting plate 602 away from the mounting block 601, and the supporting mechanism 7 is hoisted at a position below the bottom end of the mounting plate 602 close to the servo motor A604. The present invention sets a mounting block 601 at the bottom end of the rotating bearing 203, and the rotating bearing 203 can drive the mounting block 601 to rotate. The mounting block 601 is connected to a mounting plate 602, and a cylinder B603 is arranged on the mounting plate 602. The cylinder B603 enables the servo motor A604 and the supporting mechanism 7 to achieve rapid lifting and lowering, thereby achieving the supporting of the valve seat. In large-scale valve seat production or continuous production lines, the efficient handling and operation capabilities of the present invention can greatly improve the overall production efficiency.

[0061] As another embodiment of the present invention, the supporting mechanism 7 includes a lifting frame 701, a driving disk 702, a slide rail 703, a slider 704, and a supporting block 705. The lifting frame 701 is connected to the bottom of the mounting plate 602 near the position below the servo motor A604, the driving disk 702 is connected to the lifting frame 701, the slide rail 703 is connected to the bottom of the lifting frame 701 in a circular shape with equal intervals, the slider 704 is slidably connected to the slide rail 703, one end of the supporting block 705 is connected to the slider 704, and the other end of the supporting block 705 is movably connected to the driving disk 702.

[0062] A center hole 706 is provided on the lifting frame 701, and a driving disk 702 is rotatably connected to the center hole 706. A curved groove 707 is provided on the driving disk 702. A sliding rod 708 is provided at one end of the supporting block 705 close to the driving disk 702. The sliding rod 708 is slidably connected to the curved groove 707, and the output end of the servo motor A604 is connected to the driving disk 702. The present invention sets a hanging frame 701 at a position near the bottom of the mounting plate 602 below the servo motor A604, and a center hole 706 is opened on the hanging frame 701. A driving disk 702 is rotatably connected to the center hole 706. The driving disk 702 is provided with four curved grooves 707 at equal intervals in a ring. Four sets of slide rails 703, sliders 704 and support blocks 705 are also arranged at equal intervals in a ring at the bottom of the hanging frame 701 relative to the outer side of the driving disk 702. The inner end of the support block 705 is connected to a slide bar 708, and the slide bar 708 is movably inserted in the curved groove 707. When the valve seat needs to be taken, the servo motor A604 is driven to drive the driving disk. 702 rotates, and the driving disk 702 rotates to rotate the curved groove 707, and the curved groove 707 moves the slide rod 708 and the support block 705, and the support block 705 drives the slider 704 to slide on the slide rail 703, so that the support block 705 can be expanded or contracted to realize the transportation of the valve seat. The internal support and taking structure of the present invention has a more accurate positioning effect than the traditional grasping, and is more stable and conducive to accurate placement. A flexible rubber sleeve can also be provided on the inner side of the support block 705 to make the support block 705 better protected during the internal support and taking, thereby solving the problem that the traditional grasping is easy to damage the surface of the workpiece, improving the positioning effect and further improving the efficiency.

[0063] As another embodiment of the present invention, the adjustment component 804 includes a gear B8041, a servo motor B8042 and a driving gear 8043. The gear B8041 is connected to the top of the gear A8069. The servo motor B8042 is connected to the top of the gear B8041. The driving gear 8043 is rotatably connected to the top of the inner ring 8063. The gear B8041 is meshed with the driving gear 8043. The present invention arranges the gear B8041 at the top of the gear A8069, arranges the servo motor B8042 at the top of the gear B8041, drives the servo motor B8042 to rotate so that the gear B8041 and the gear A8069 rotate, the gear A8069 meshes with the inner gear ring 8068 so that the inner gear ring 8068 rotates in the groove at the top of the outer ring 8062 through the pulley 8067, and the inner gear ring 8068 drives a plurality of gears A8069 to rotate synchronously. The gear A8069 and the servo motor B8042 are arranged at the top of the gear B8041. The servo motor B8042 is driven to rotate so that the gear B8041 and the gear A8069 rotate. The meshing of the rack 8065 allows the rack 8065 to slide outward on the through-slots 8064 of the outer ring 8062 and the inner ring 8063, so that the rack 8065 drives the first grinding block 8066 to expand, and is used to grind the inner wall with a larger aperture at the top of the valve seat. The present invention enables the first grinding block 8066 to flexibly change the grinding size, adapt to the processing requirements of the inner holes of valve seats of different sizes and shapes, has strong adaptability and flexibility, and further optimizes the valve seat finishing efficiency.

[0064] As another embodiment of the present invention, the inner hole grinding member 805 includes a support ring 8051, a rotating disk 8052, a connecting block 8053, an arc groove 8054, a through hole 8055, a moving rod 8056, a movable rod 8057 and a second grinding block 8058. The support ring 8051 is arranged on the chassis 8061, the rotating disk 8052 is rotatably connected to the top of the support ring 8051, one end of the connecting block 8053 is connected to the bottom end of the rotating disk 8052, and the connecting block 8053 is connected to the bottom end of the rotating disk 8052. The other end of the connecting block 8053 is connected to the inner wall of the driving gear 8043, the arc groove 8054 is symmetrically opened on the rotating disk 8052, the through hole 8055 is symmetrically opened on the supporting ring 8051, the moving rod 8056 is slidably connected to the arc groove 8054, the movable rod 8057 is movably inserted in the through hole 8055, the inner end of the movable rod 8057 is connected to the bottom end of the moving rod 8056, and the second grinding block 8058 is connected to the outer end of the movable rod 8057. The present invention provides a support ring 8051 on the chassis 8061, and a rotating disk 8052 is rotatably provided on the support ring 8051. When the servo motor B8042 is driven to rotate so that the gear B8041 rotates, the gear B8041 meshes with the driving gear 8043 so that the driving gear 8043 is reversed. The driving gear 8043 rotates through the connecting block 8053 to drive the rotating disk 8052 at the top to rotate on the support ring 8051. The rotating disk 8052 rotates so that the two arc grooves 8054 symmetrically provided rotate. The arc grooves 8054 rotate. The limit of 54 enables the movable rod 8056 to drive the movable rod 8057 and the second grinding block 8058 to move and intersect on the through hole 8055, and the second grinding block 8058 is contracted when the first grinding block 8066 is expanded, and the second grinding block 8058 is expanded when the first grinding block 8066 is contracted. Compared with the existing valve seat grinding device, the present invention can not only obtain high dimensional accuracy, high geometric shape accuracy and low surface roughness by accurately controlling the inner wall grinding or inner hole grinding process, but also has high-efficiency finishing processing. Example

[0065] The present invention also provides a method for machining a valve seat inner hole inner wall finishing machining device, comprising the following steps:

[0066] S1, positioning operation;

[0067] The stroke of the driving cylinder A202 drives the rotating arm 204 to drive the rotating bearing 203 to rotate, and the rotation of the rotating bearing 203 causes the cylinder B603 of the lifting mechanism 6 to rotate to just above the valve seat on the loading plate 4, and the stroke of the cylinder B603 causes the servo motor A604 and the supporting mechanism 7 to descend;

[0068] S2, inner support taking operation;

[0069] The servo motor A604 is driven to drive the driving disk 702 to rotate, and the driving disk 702 rotates to rotate the curved groove 707, and the curved groove 707 moves the slide bar 708 and the support block 705, and the support block 705 drives the slider 704 to slide on the slide rail 703, so that the support block 705 is opened and fixed on the inner hole of the valve seat;

[0070] S3, loading operation;

[0071] The return stroke of the driving cylinder A202 causes the rotating arm 204 to drive the rotating bearing 203 to rotate. The rotation of the rotating bearing 203 causes the cylinder B603 of the lifting mechanism 6 to rotate to above the bearing seat 303 of the bearing tray 302. The stroke of the cylinder B603 causes the servo motor A604 and the supporting mechanism 7 to descend. The servo motor A604 is driven again to drive the driving disk 702 to reverse. The rotation of the driving disk 702 causes the curved groove 707 to rotate. The curved groove 707 causes the slide bar 708 and the supporting block 705 to move. The supporting block 705 drives the slider 704 to slide on the slide rail 703, so that the supporting block 705 is contracted on the inner hole of the valve seat, so that the valve seat is placed on the bearing seat 303.

[0072] S4, rotation operation;

[0073] The reduction motor A301 is driven to rotate so that the tray 302 rotates, and the tray 302 drives the bearing seat 303 and the valve seat to rotate to a position directly below the grinding mechanism 8;

[0074] S5, grinding operation;

[0075] Grind the inner wall or inner hole of the valve seat according to the need and select the appropriate grinding state;

[0076] S5.1. If the inner wall of the valve seat needs to be polished, the servo motor B8042 is driven to rotate so that the gear B8041 and the gear A8069 rotate, and the gear A8069 meshes with the inner gear ring 8068 so that the inner gear ring 8068 rotates in the top groove of the outer ring 8062 through the pulley 8067, and the inner gear ring 8068 drives a plurality of gears A8069 to rotate synchronously, and the gear A8069 meshes with the rack 8065 so that the rack 8065 slides outward on the through-slots 8064 of the outer ring 8062 and the inner ring 8063, so that the rack 8065 drives the first polishing block 8066 to expand, so as to polish the inner wall with a larger aperture at the top of the valve seat;

[0077] S5.2, if it is necessary to grind the inner hole of the valve seat, drive the servo motor B8042 to rotate so that the gear B8041 rotates, the gear B8041 meshes with the driving gear 8043 so that the driving gear 8043 reverses, the driving gear 8043 rotates and drives the rotating disk 8052 at the top to rotate on the supporting ring 8051 through the connecting block 8053, the rotating disk 8052 rotates so that the two symmetrically opened arc grooves 8054 rotate, the limit of the arc groove 8054 enables the moving rod 8056 to drive the movable rod 8057 and the second grinding block 8058 to move and intersect on the through hole 8055, so as to realize the contraction of the second grinding block 8058, which is used to grind the inner hole on the inner wall of the valve seat;

[0078] S6, unloading operation;

[0079] Driving the reduction motor A301 to rotate causes the bearing tray 302 to rotate, and the bearing tray 302 drives the bearing seat 303 and the finely machined valve seat to rotate to the position on the side of the blanking plate 5; driving the cylinder A202 stroke drives the rotating arm 204 to drive the rotating bearing 203 to rotate, and the rotation of the rotating bearing 203 causes the cylinder B603 of the lifting mechanism 6 to rotate to the position directly above the finely machined valve seat; the stroke of the cylinder B603 causes the servo motor A604 and the supporting mechanism 7 to descend, driving the servo motor A604 to drive the driving disk 702 to rotate, and the rotation of the driving disk 702 causes the curved groove 707 to rotate, and the curved groove 707 causes the slide bar 708 and the supporting block 705 to move, and the supporting block 705 drives the slider 704 on the slide rail 703 Sliding makes the support block 705 open and fixed on the inner hole of the valve seat; driving the cylinder A202 to return drives the rotating arm 204 to drive the rotating bearing 203 to rotate, and the rotating bearing 203 rotates to make the cylinder B603 of the lifting mechanism 6 rotate to above the blanking plate 5, and the stroke of the cylinder B603 makes the servo motor A604 and the support mechanism 7 descend, and then drives the servo motor A604 again to drive the driving disk 702 to reverse, and the driving disk 702 rotates to make the curved groove 707 rotate, and the curved groove 707 makes the slide bar 708 and the support block 705 move, and the support block 705 drives the slider 704 to slide on the slide rail 703, so that the support block 705 is contracted on the inner hole of the valve seat, so that the processed valve seat is placed on the blanking plate 5.

[0080] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A device for fine machining the inner wall of the inner hole of a valve seat, characterized in that: The base comprises a base (1), wherein a conveying mechanism (2) is provided at the top of the base (1), a rotating mechanism (3) is provided at the top of the base (1) near the conveying mechanism (2), a loading plate (4) is provided at one end of the top of the base (1) near the rotating mechanism (3), a unloading plate (5) is provided at the other end of the top of the base (1) away from the rotating mechanism (3), a lifting mechanism (6) is suspended at a position above the conveying mechanism (2) near the loading plate (4) and the unloading plate (5), a supporting mechanism (7) is suspended on the lifting mechanism (6), and a grinding mechanism (8) is also provided at a position above the conveying mechanism (2) near the rotating mechanism (3); The grinding mechanism (8) comprises a cylinder C (801), a reduction motor B (802), a connecting rod (803), an adjusting assembly (804), an inner hole grinding piece (805) and an inner wall grinding piece (806); the cylinder C (801) is arranged on the conveying mechanism (2); the reduction motor B (802) is connected to the bottom output end of the cylinder C (801); the connecting rod (803) is connected to the bottom output end of the reduction motor B (802); the inner wall grinding piece (806) is connected to the bottom end of the connecting rod (803); the adjusting assembly (804) is arranged on the inner wall grinding piece (806); and the inner hole grinding piece (805) is arranged on the inner wall grinding piece (806); The inner wall grinding member (806) comprises a chassis (8061), an outer ring (8062), an inner ring (8063), a through slot (8064), a rack (8065), a first grinding block (8066), a pulley (8067), an inner gear ring (8068) and a gear A (8069); the chassis (8061) is connected to the bottom end of the connecting rod (803); the outer ring (8062) is arranged on the chassis (8061); the inner ring (8063) is arranged on the chassis (8061); the through slot (8064) is arranged in a circular shape and is evenly spaced between the outer ring (8062) and the inner ring (8063); The rack (8065) ​​is movably inserted in the through slot (8064), the first grinding block (8066) is connected to the outer end of the rack (8065), the pulley (8067) is arranged on the outer ring (8062) in an annular shape and at equal intervals, the inner gear ring (8068) is rotatably connected to the outer ring (8062) through the pulley (8067), the gear A (8069) is arranged on the chassis (8061) in an annular shape and at equal intervals, and the gear A (8069) is meshedly connected with the inner gear ring (8068) and the rack (8065).

2. A valve seat inner hole inner wall finishing processing device according to claim 1, characterized in that: The transport mechanism (2) comprises a support frame (201), a cylinder A (202), a rotary bearing (203) and a rotary arm (204); the support frame (201) is arranged at a position on the top of the base (1) close to one side of the rotary mechanism (3); the cylinder A (202) is symmetrically arranged at a position on the top of the support frame (201); the rotary bearing (203) is symmetrically arranged at the top of the support frame (201); one end of the rotary arm (204) is connected to the output end of the cylinder A (202); the other end of the rotary arm (204) is connected to the top of the rotary bearing (203); the lifting mechanism (6) is connected to the bottom of the rotary bearing (203); and the grinding mechanism (8) is arranged at a position on the top of the support frame (201) close to between the two rotary bearings (203).

3. A valve seat inner hole inner wall finishing processing device according to claim 2, characterized in that: The rotating mechanism (3) comprises a reduction motor A, a bearing tray and a bearing seat, wherein the reduction motor A is arranged at a position on the base (1) close to one side of the support frame (201), the bearing tray is rotatably connected to the output end of the reduction motor A, and the bearing seats are arranged in a circular shape at equal intervals on the bearing tray, and the bearing seats are arranged on the bearing tray at a position close to the bottom of the grinding mechanism (8).

4. A valve seat inner hole inner wall finishing processing device according to claim 3, characterized in that: The lifting mechanism (6) comprises a mounting block (601), a mounting plate (602), a cylinder B (603) and a servo motor A (604); the mounting block (601) is connected to the bottom end of the rotary bearing (203); the mounting plate (602) is connected to the mounting block (601); the cylinder B (603) is arranged at one end of the mounting plate (602) close to the mounting block (601); the servo motor A (604) is connected to one end of the mounting plate (602) away from the mounting block (601); and the supporting mechanism (7) is hoisted at a position below the bottom end of the mounting plate (602) close to the servo motor A (604).

5. A valve seat inner hole inner wall finishing processing device according to claim 4, characterized in that: The supporting mechanism (7) comprises a hanging frame (701), a driving disk (702), a slide rail (703), a slider (704), and a supporting block (705); the hanging frame (701) is connected to a position below the bottom of the mounting plate (602) close to the servo motor A (604); the driving disk (702) is connected to the hanging frame (701); the slide rail (703) is connected to the bottom of the hanging frame (701) in a circular shape with equal spacing; the slider (704) is slidably connected to the slide rail (703); one end of the supporting block (705) is connected to the slider (704); and the other end of the supporting block (705) is movably connected to the driving disk (702).

6. A valve seat inner hole inner wall finishing processing device according to claim 5, characterized in that: The hanging frame (701) is provided with a center hole (706), the driving disk (702) is rotatably connected to the center hole (706), the driving disk (702) is provided with a curved groove (707), the supporting block (705) is provided with a sliding rod (708) at one end close to the driving disk (702), the sliding rod (708) is slidably connected to the curved groove (707), and the output end of the servo motor A (604) is connected to the driving disk (702).

7. A valve seat inner hole inner wall finishing processing device according to claim 6, characterized in that: The adjustment component (804) comprises a gear B (8041), a servo motor B (8042) and a driving gear (8043), wherein the gear B (8041) is connected to the top of the gear A (8069), the servo motor B (8042) is connected to the top of the gear B (8041), the driving gear (8043) is rotatably connected to the top of the inner ring (8063), and the gear B (8041) is meshedly connected to the driving gear (8043).

8. A valve seat inner hole inner wall finishing processing device according to claim 7, characterized in that: The inner hole grinding member (805) comprises a support ring (8051), a rotating disk (8052), a connecting block (8053), an arc groove (8054), a through hole (8055), a moving rod (8056), a movable rod (8057) and a second grinding block (8058), wherein the support ring (8051) is arranged on the base plate (8061), the rotating disk (8052) is rotatably connected to the top end of the support ring (8051), one end of the connecting block (8053) is connected to the bottom end of the rotating disk (8052), and the other end of the connecting block (8053) is connected to the bottom end of the rotating disk (8052). The end is connected to the inner wall of the driving gear (8043), the arc groove (8054) is symmetrically opened on the rotating disk (8052), the through hole (8055) is symmetrically opened on the supporting ring (8051), the moving rod (8056) is slidably connected to the arc groove (8054), the movable rod (8057) is movably inserted in the through hole (8055), the inner end of the movable rod (8057) is connected to the bottom end of the moving rod (8056), and the second grinding block (8058) is connected to the outer end of the movable rod (8057).

9. A processing method for a valve seat inner hole inner wall finishing processing device according to claim 8, characterized in that: The following steps are involved: S1, positioning operation; The stroke of the driving cylinder A (202) causes the rotating arm (204) to drive the rotating bearing (203) to rotate, and the rotation of the rotating bearing (203) causes the cylinder B (603) of the lifting mechanism (6) to rotate to just above the valve seat on the loading plate (4), and the stroke of the cylinder B (603) causes the servo motor A (604) and the supporting mechanism (7) to descend; S2, inner support taking operation; The servo motor A (604) is driven to drive the driving disk (702) to rotate. The driving disk (702) rotates to rotate the curved groove (707). The curved groove (707) moves the slide bar (708) and the support block (705). The support block (705) drives the slider (704) to slide on the slide rail (703), so that the support block (705) is opened and fixed on the inner hole of the valve seat. S3, loading operation; The return stroke of the driving cylinder A (202) causes the rotating arm (204) to drive the rotating bearing (203) to rotate. The rotating bearing (203) rotates to cause the cylinder B (603) of the lifting mechanism (6) to rotate to above the bearing seat of the bearing tray. The stroke of the cylinder B (603) causes the servo motor A (604) and the supporting mechanism (7) to descend. The servo motor A (604) is driven again to drive the driving disk (702) to reverse. The driving disk (702) rotates to cause the curved groove (707) to rotate. The curved groove (707) causes the slide bar (708) and the supporting block (705) to move. The supporting block (705) drives the slider (704) to slide on the slide rail (703), so that the supporting block (705) is contracted on the inner hole of the valve seat, so that the valve seat is placed on the bearing seat. S4, rotation operation; The reduction motor A is driven to rotate so that the bearing plate rotates, and the bearing plate drives the bearing seat and the valve seat to rotate to a position directly below the grinding mechanism (8); S5, grinding operation; Grind the inner wall or inner hole of the valve seat according to the need and select the appropriate grinding state; S5.

1. If the inner wall of the valve seat needs to be polished, the servo motor B (8042) is driven to rotate so that the gear B (8041) and the gear A (8069) rotate, and the gear A (8069) is meshed with the inner gear ring (8068) so that the inner gear ring (8068) rotates in the top groove of the outer ring (8062) through the pulley (8067). The inner gear ring (8068) drives a plurality of gears A (8069) to rotate synchronously, and the gear A (8069) is meshed with the rack (8065) ​​so that the rack (8065) ​​slides outward on the through-slots (8064) of the outer ring (8062) and the inner ring (8063), so that the rack (8065) ​​drives the first polishing block (8066) to expand, so as to polish the inner wall with a larger aperture at the top of the valve seat; S5.

2. If the inner hole of the valve seat needs to be polished, the servo motor B (8042) is driven to rotate so that the gear B (8041) rotates, and the gear B (8041) meshes with the driving gear (8043) so that the driving gear (8043) rotates in the reverse direction. The driving gear (8043) rotates through the connecting block (8053) to drive the rotating disk (8052) at the top to rotate on the supporting ring (8051). The rotation of the rotating disk (8052) causes the two symmetrically opened arc grooves (8054) to rotate. The limit of the arc groove (8054) causes the moving rod (8056) to drive the movable rod (8057) and the second polishing block (8058) to move and intersect on the through hole (8055), thereby realizing the contraction of the second polishing block (8058) for polishing the inner hole on the inner wall of the valve seat. S6, unloading operation; The reduction motor A is driven to rotate so that the bearing tray rotates, and the bearing tray drives the bearing seat and the finely machined valve seat to rotate to a position on one side of the blanking plate (5); the stroke of the driving cylinder A (202) drives the rotating arm (204) to drive the rotating bearing (203) to rotate, and the rotation of the rotating bearing (203) causes the cylinder B (603) of the lifting mechanism (6) to rotate to a position directly above the finely machined valve seat; the stroke of the cylinder B (603) causes the servo motor A (604) and the supporting mechanism (7) to descend, and the driving servo motor A (604) drives the driving disk (702) to rotate, and the rotation of the driving disk (702) causes the curved groove (707) to rotate, and the curved groove (707) causes the sliding rod (708) and the supporting block (705) to move, and the supporting block (705) drives the sliding block (704) to slide on the sliding rail (703), so that the supporting block ( The valve seat (705) is opened and fixed on the inner hole of the valve seat; the return stroke of the driving cylinder A (202) drives the rotating arm (204) to drive the rotating bearing (203) to rotate, and the rotating bearing (203) rotates to make the cylinder B (603) of the lifting mechanism (6) rotate to the top of the blanking plate (5). The stroke of the cylinder B (603) makes the servo motor A (604) and the supporting mechanism (7) descend, and the servo motor A (604) is driven again to drive the driving disk (702) to reverse, and the driving disk (702) rotates to make the curved groove (707) rotate, and the curved groove (707) makes the slide bar (708) and the supporting block (705) move, and the supporting block (705) drives the slider (704) to slide on the slide rail (703), so that the supporting block (705) is contracted on the inner hole of the valve seat, so that the processed valve seat is placed on the blanking plate (5).

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