Valve plate trepanning device

Abstract

The utility model discloses a valve plate trepanning device which comprises a machine box, a positioning table is arranged on the machine box, a positioning groove is formed in the top face of the positioning table, opposite pressing mechanisms are arranged on the two sides of the positioning table, a rack with an opening in the front side is arranged on the periphery of the machine box, a lifting mechanism is arranged on the top of the rack, and the top of the rack is connected with a drilling mechanism through the lifting mechanism. The drilling mechanism comprises a driving box, a rotating column is rotationally connected to the driving box, the axis of the rotating column is aligned with the center of the positioning table, a driving mechanism for driving the rotating column to rotate is arranged in the driving box, a mounting plate is connected to the lower end of the rotating column, a sliding seat is connected to the bottom of the mounting plate through a lead screw transmission mechanism, and a housing is connected to the bottom of the sliding seat; a drilling machine is arranged in the housing and located above the positioning table. The lead screw rotating mechanism controls the sliding base to move, the distance from the drilling machine to the rotating column can be adjusted, and therefore arc-shaped holes with different radiuses with the rotating column as the circle center are drilled in the valve plate.

Description

Technical Field

[0001] The utility model relates to the technical field of valve plate processing, in particular to a valve plate hole opening device. Background Art

[0002] like Figure 4 Figure 2 shows a schematic diagram of an air compressor valve plate 26. A central hole 27 is formed in the center of the valve plate, and multiple concentric arc-shaped holes 28 are formed around the periphery of the central hole 27. During machining, these arc-shaped holes need to be drilled into the valve plate. However, current drilling methods for valve plates present the following problems: Generally, only circular or linear holes can be drilled; arc-shaped holes are not possible. Even if arc-shaped holes can be drilled, it is difficult to drill arc-shaped holes of varying radii as required while ensuring that all arc-shaped holes are concentric. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a valve plate opening device to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A valve plate hole opening device includes a chassis, a positioning platform is provided on the chassis, a positioning groove is provided on the top surface of the positioning platform, relative clamping mechanisms are provided on both sides of the positioning platform, a frame with a front opening is provided on the periphery of the chassis, a lifting mechanism is provided on the top of the frame, and a drilling mechanism is connected through the lifting mechanism; the drilling mechanism includes a drive box, a rotating column is rotatably connected to the drive box, the axis of the rotating column is aligned with the center of the positioning platform, a driving mechanism for driving the rotating column to rotate is provided in the drive box, the lower end of the rotating column is connected to a mounting plate, the bottom of the mounting plate is connected to a slide through a screw transmission mechanism, the bottom of the slide is connected to a cover shell, a drilling rig is provided in the cover shell, and the drilling rig is located above the positioning platform.

[0006] Preferably, the clamping mechanism includes a wall panel connected to the outside of the positioning platform, a first cylinder installed on the wall panel, an L-shaped plate connected to the telescopic end of the first cylinder, a second cylinder installed on the L-shaped plate, and a pressure plate connected to the telescopic end of the second cylinder. The first cylinder is extended to enable the L-shaped plate to reach above the positioning groove.

[0007] In the above technical solution, after the valve plate is placed in the positioning groove, the first cylinder is controlled to extend, driving the L-shaped plate to move above the positioning groove, and then the second cylinder is controlled to extend, driving the pressure plate to descend, and the valve plate is pressed tightly in the positioning groove through the pressure plate, so that the valve plate remains stable.

[0008] Preferably, the lifting mechanism includes a third cylinder mounted on the frame and a first guide rod slidably connected to the frame, and both the third cylinder and the first guide rod are connected to the top of the drive box.

[0009] The above technical solution controls the extension of the third cylinder to drive the drive box to descend, and the first guide rod can make the descent of the drive box more stable.

[0010] Preferably, the driving mechanism includes a first motor installed in a driving box, a transmission shaft connected to the first motor through a coupling, a main gear connected to the transmission shaft, and a sub-gear connected to the rotating column, and the main gear is meshed with the sub-gear.

[0011] The above technical solution starts the first motor to drive the transmission shaft to rotate, and through the cooperation of the main gear and the auxiliary gear, drives the rotating column to rotate, thereby driving the drilling rig to rotate with the rotating column as the center.

[0012] Preferably, the screw transmission mechanism includes bearing seats connected to both ends of the bottom surface of the mounting plate, a screw rotatably connected to the two bearing seats, a second guide rod connected to the two bearing seats and located on both sides of the screw, and a second motor installed on one of the bearing seats. The second motor is connected to the screw for transmission, the slide is threadedly connected to the screw, and the slide is slidably connected to the second guide rod.

[0013] The above technical solution starts the second motor to drive the screw to rotate, thereby driving the slide to move along the second guide rod to adjust the distance between the drill rig and the rotating column, thereby drilling arc holes with different radii.

[0014] Preferably, a screw hole is provided at the center of the positioning groove, and a positioning pin is threadedly connected through the screw hole.

[0015] The above technical solution installs a locating pin in the center of the locating groove, so that the center hole of the valve plate can be put on the locating pin to preliminarily position the valve plate. The locating pin is replaceable, so it is convenient to replace locating pins of different diameters according to the diameter of the center hole of the valve plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The valve plate is placed in the positioning groove, secured by a clamping mechanism. The drilling mechanism is lowered by a lifting mechanism, bringing the drill into contact with the valve plate. The drive mechanism controls the rotation of the rotary column to drill an arc-shaped hole in the valve plate. The distance between the drill and the rotary column can be adjusted by controlling the movement of the screw rotation mechanism, thereby drilling arc-shaped holes of different radii on the valve plate with the rotary column as the center. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present utility model;

[0019] Figure 2 This is a front sectional view of the present utility model;

[0020] Figure 3 It is a schematic diagram of the screw transmission mechanism;

[0021] Figure 4 is a schematic diagram of the valve plate;

[0022] In the figure: 1-chassis, 2-positioning table, 3-positioning slot, 4-frame, 5-drive box, 6-rotating column, 7-mounting plate, 8-slide, 9-cover, 10-drilling rig, 11-wall panel, 12-first cylinder, 13-L-shaped plate, 14-second cylinder, 15-pressing plate, 16-third cylinder, 17-first guide rod, 18-first motor, 19-main gear, 20-second gear, 21-bearing seat, 22-screw rod, 23-second guide rod, 24-second motor, 25-locating pin, 26-valve plate, 27-center hole, 28-arc hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figure 1-3 A valve plate opening device includes a chassis 1, a positioning platform 2 is provided on the chassis 1, a positioning groove 3 is provided on the top surface of the positioning platform 2, and opposite clamping mechanisms are provided on both sides of the positioning platform 2. Specifically, the clamping mechanism includes a wall panel 11 connected to the outside of the positioning platform, a first cylinder 12 installed on the wall panel, an L-shaped plate 13 connected to the telescopic end of the first cylinder, a second cylinder 14 installed on the L-shaped plate, and a pressure plate 15 connected to the telescopic end of the second cylinder. The first cylinder 12 is extended to enable the L-shaped plate 13 to reach the top of the positioning groove 3. After the valve plate is placed in the positioning groove 3, the first cylinder 12 is controlled to extend to drive the L-shaped plate 13 to move to the top of the positioning groove 3, and then the second cylinder 14 is controlled to extend to drive the pressure plate 15 to descend. The valve plate is pressed tightly in the positioning groove 3 by the pressure plate 15, so that the valve plate remains stable.

[0026] The chassis 1 is provided with a frame 4 with an open front. A lifting mechanism is located on the top of the frame 4, connected to a drilling mechanism. Specifically, the lifting mechanism comprises a third cylinder 16 mounted on the frame and a first guide rod 17 slidably connected to the frame. Both the third cylinder 16 and the first guide rod 17 are connected to the top of the drive box 5. Extending the third cylinder 16 lowers the drive box 5, while the first guide rod 17 ensures a more stable descent of the drive box 5.

[0027] The drilling mechanism includes a drive box 5, which is rotatably connected to a rotating column 6. The axis of the rotating column 6 is aligned with the center of the positioning platform 2 so that when the rotating column rotates, the drilling rig can rotate around the rotating column 6. A driving mechanism for driving the rotating column 6 to rotate is provided in the drive box. The lower end of the rotating column 6 is connected to a mounting plate 7. The bottom of the mounting plate 7 is connected to a slide 8 through a screw transmission mechanism. The bottom of the slide 8 is connected to a cover 9. A drilling rig 10 is provided in the cover 9. The drilling rig 10 is located above the positioning platform 2.

[0028] Specifically, the drive mechanism includes a first motor 18 mounted within a drive housing, a transmission shaft connected to the first motor via a coupling, a main gear 19 connected to the transmission shaft, and a sub-gear 20 connected to the rotating column, with the main gear 19 meshing with the sub-gear 20. When the first motor 18 is activated, the transmission shaft rotates, and the main gear 19 and sub-gear 20 cooperate to rotate the rotating column 6, thereby driving the drilling rig 10 to rotate about the rotating column 6.

[0029] The screw drive mechanism includes bearing blocks 21 connected to both ends of the bottom surface of the mounting plate, a screw 22 rotatably connected to the two bearing blocks, second guide rods 23 connected to the two bearing blocks and located on both sides of the screw, and a second motor 24 mounted on one of the bearing blocks. The second motor 24 is in driving connection with the screw 22, and the slide 8 is threadedly connected to the screw 22, which is in sliding connection with the second guide rods 23. When the second motor 24 is activated, the screw 22 rotates, thereby driving the slide 8 to move along the second guide rods 23 to adjust the distance between the drilling rig 10 and the rotating column 6, thereby drilling arc holes of different radii.

[0030] The chassis is provided with a controller, and a control panel is provided on the front side of the chassis. A control program is written into the controller. The first motor, the second motor, the first cylinder, the second cylinder, the third cylinder, and the drilling rig are all electrically connected to the controller. The drilling rig described in this embodiment is prior art and will not be described in detail in this embodiment.

[0031] The working principle of this embodiment is:

[0032] The valve plate 26 is placed in the positioning groove 3 and then secured by the clamping mechanism. The screw-rotating mechanism then controls the movement of the slide to adjust the distance between the drill and the rotary column. The lifting mechanism then lowers the drilling mechanism, bringing the drill 10 into contact with the valve plate 26. The drive mechanism then controls the rotary column 6 to rotate, thereby drilling an arc-shaped hole in the valve plate. By adjusting the distance between the drill and the rotary column, arc-shaped holes of varying radii can be drilled.

[0033] Example 2

[0034] This embodiment differs from Embodiment 1 in that a screw hole is provided at the center of the positioning groove 3, through which a positioning pin 25 is threadedly connected. By installing the positioning pin 25 at the center of the positioning groove 3, the center hole 27 of the valve plate can be fitted over the positioning pin 25 to perform preliminary positioning of the valve plate. The positioning pin is replaceable, making it easy to replace positioning pins of different diameters according to the diameter of the center hole of the valve plate.

[0035] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve plate opening device, characterized in that: The invention comprises a chassis (1), a positioning platform (2) is provided on the chassis (1), a positioning groove (3) is provided on the top surface of the positioning platform (2), opposite pressing mechanisms are provided on both sides of the positioning platform (2), a frame (4) with a front opening is provided on the periphery of the chassis (1), a lifting mechanism is provided on the top of the frame (4), and a drilling mechanism is connected via the lifting mechanism; The drilling mechanism comprises a driving box (5), a rotating column (6) is rotatably connected to the driving box (5), the axis of the rotating column (6) is aligned with the center of the positioning platform (2), a driving mechanism for driving the rotating column (6) to rotate is provided in the driving box, the lower end of the rotating column (6) is connected to a mounting plate (7), the bottom of the mounting plate (7) is connected to a slide (8) through a screw transmission mechanism, the bottom of the slide (8) is connected to a cover (9), a drilling rig (10) is provided in the cover (9), and the drilling rig (10) is located above the positioning platform (2).

2. A valve plate hole opening device according to claim 1, characterized in that: The pressing mechanism comprises a wall panel (11) connected to the outside of the positioning platform, a first cylinder (12) installed on the wall panel, an L-shaped plate (13) connected to the telescopic end of the first cylinder, a second cylinder (14) installed on the L-shaped plate, and a pressing plate (15) connected to the telescopic end of the second cylinder. The first cylinder (12) is extended to enable the L-shaped plate (13) to reach the top of the positioning groove (3).

3. The valve plate hole opening device according to claim 2, characterized in that: The lifting mechanism comprises a third cylinder (16) mounted on the frame and a first guide rod (17) slidably connected to the frame. Both the third cylinder (16) and the first guide rod (17) are connected to the top of the driving box (5).

4. The valve plate hole opening device according to claim 3, characterized in that: The driving mechanism comprises a first motor (18) installed in a driving box, a transmission shaft connected to the first motor through a coupling, a main gear (19) connected to the transmission shaft, and a sub-gear (20) connected to a rotating column, wherein the main gear (19) is meshed with the sub-gear (20).

5. The valve plate hole opening device according to claim 4, characterized in that: The screw transmission mechanism comprises bearing seats (21) connected to both ends of the bottom surface of the mounting plate, a screw (22) rotatably connected to the two bearing seats, a second guide rod (23) connected to the two bearing seats and located on both sides of the screw, and a second motor (24) installed on one of the bearing seats, the second motor (24) is transmission-connected to the screw (22), the slide (8) is threadedly connected to the screw (22), and the slide (8) is slidably connected to the second guide rod (23).

6. A valve plate hole opening device according to any one of claims 1 to 5, characterized in that: A screw hole is provided at the center of the positioning groove (3), and a positioning pin (25) is threadedly connected through the screw hole.

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