Valve stem fitting tapping apparatus

Abstract

The utility model discloses a valve stem accessory trepanning equipment relates to valve stem accessory technical field, aiming at the problem of the background art that the oil injection hole or positioning pin hole trepanning treatment of the circumference outer wall of valve stem nut cannot be carried out, and the practicability is low, the following scheme is presented, including installation platform, and the clamping mechanism is equipped with on installation platform top, and the clamping mechanism includes clamping motor, the screw rod that is connected on clamping motor output shaft one end through coupling, the locating seat that is connected on installation platform top outer wall through bolt and the clamping seat that is screwed on the outer wall of screw rod, and the supporting mechanism is equipped with on installation platform, and the supporting mechanism includes double shaft air cylinder and the support seat that has a plurality of arc grooves on top outer wall, and the mounting bracket is connected on one side outer wall of installation platform through bolt, and the adjusting mechanism is equipped with on mounting bracket, and the adjusting mechanism includes adjusting cylinder. The utility model can carry out the clamping in horizontal direction to valve stem nut, and further realizes the trepanning treatment of oil injection hole or positioning pin hole, and the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve stem fittings technology, and in particular to a valve stem fittings drilling device. Background Technology

[0002] Valve stem fittings include valve stem nuts, which consist of a nut cap and a nut stem. The nut cap has a dustproof sealing groove, and the inner circumferential surface of the nut stem has upper and lower annular grooves in sequence, while the outer circumferential surface of the nut stem has an annular groove. During the production process of valve stem nuts, it is necessary to open holes for oil injection holes or locating pin holes.

[0003] A search revealed a Chinese patent (application number "202323317260.5") disclosing "a valve stem nut positioning hole device." This positioning hole device includes a hollow carrier plate, and further comprises an adjustment unit and a limiting unit mounted on the carrier plate, as well as a hole assembly located on the top surface of one side of the carrier plate. The adjustment unit includes a first lead screw, a support bar, a support crossbar, a support block, and an operating platform. The first lead screw is movably mounted on the inner wall of one end of the carrier plate. Two support bars are provided, one of which is threadedly connected to the first lead screw. A strip-shaped through groove is provided at the center of the top surface of the carrier plate. One end of the support bar is connected to the end face of the support bar and is located inside the strip-shaped through groove. The other end of the support bar extends movably to the outside of the carrier plate. The support block is fixedly installed on the top surface of the end of the support bar. The operating table is in the shape of a "U" and is fixedly installed on the top of the support block. The first screw extends movably to the outside of the carrier plate and is fixedly installed with a first turntable. However, the above-mentioned positioning and hole-opening device cannot be used to open the oil injection hole or positioning pin hole on the outer circumference of the valve stem nut during use, resulting in low practicality. Utility Model Content

[0004] This utility model provides a valve stem fitting hole-opening device, which solves the problem that the positioning hole-opening device proposed in the prior art cannot open oil injection holes or positioning pin holes on the outer circumference of the valve stem nut when performing hole-opening processing, resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A valve stem fitting drilling device includes a mounting platform. The top of the mounting platform is equipped with a clamping mechanism, which includes a clamping motor, a screw connected to one end of the output shaft of the clamping motor via a coupling, a positioning seat bolted to the outer wall of the top of the mounting platform, and a clamping seat bolted to the outer wall of the screw. The mounting platform is equipped with a support mechanism, which includes a dual-axis cylinder and a support seat with several arc-shaped grooves on its top outer wall. A mounting frame is bolted to one outer wall of the mounting platform. The mounting frame is equipped with an adjustment mechanism, which includes an adjustment cylinder bolted to one outer wall of the mounting frame, a connecting block bolted to one end of the piston rod of the adjustment cylinder, and a fixing frame bolted to one outer wall of the connecting block. The fixing frame is equipped with a drilling assembly, which includes a lifting cylinder bolted to the outer wall of the top of the fixing frame, a mounting frame bolted to the bottom end of the piston rod of the lifting cylinder, and a drilling motor and a drill bit bolted to the inner wall of the bottom of the mounting frame.

[0006] Preferably, two mounting plates are bolted to the top outer wall of the mounting platform, and the clamping motor is bolted to one side outer wall of the mounting plate. One end of the screw passes through and is connected to one side outer wall of the mounting plate through a bearing, and the positioning seat is slidably sleeved on the outer wall of the screw. Two sliders are bolted to the bottom outer walls of the positioning seat and the clamping seat, respectively. Two slide rails are bolted to the top outer wall of the mounting platform, and the four sliders are slidably mounted on the outer walls of the two slide rails in pairs.

[0007] Preferably, the piston rod of the dual-axis cylinder is bolted to a connecting plate at its top end, and the support base is bolted to the outer wall of the top of the connecting plate.

[0008] The above scheme uses a dual-axis cylinder piston rod to lift the support base, then places the perforated valve stem nut on the support base, and uses bolts to fix the positioning seat so that the opening of the valve stem nut is directly below the drill bit. The output shaft of the clamping motor drives the screw to rotate, thereby moving the clamping seat and cooperating with the positioning seat to clamp the valve stem nut.

[0009] Preferably, two support rods are bolted to the outer wall of the top of the mounting platform, and the two support rods are bolted to the inner wall of the top of the mounting frame.

[0010] Preferably, the mounting bracket has a channel on its top outer wall, and the fixing bracket is slidably installed in the channel.

[0011] Preferably, the mounting frame is slidably fitted inside the fixing frame, and a drill chuck is detachably installed at the bottom end of the output shaft of the drilling motor, with the drill bit installed inside the drill chuck.

[0012] The above scheme uses a lifting cylinder piston rod to drive the drilling motor and drill bit to descend. The output shaft of the drilling motor drives the drill chuck and drill bit to rotate. Adjusting the piston rod of the cylinder moves the fixed frame and drill bit to drill holes in multiple valve stem nuts.

[0013] The beneficial effects of this utility model are as follows: The dual-axis cylinder piston rod drives the support seat to rise, and then the valve stem nut with a hole is placed on the support seat. The positioning seat is fixed with bolts so that the opening position of the valve stem nut is directly below the drill bit. The output shaft of the clamping motor drives the screw to rotate, which in turn moves the clamping seat and cooperates with the positioning seat to clamp the valve stem nut. This allows for horizontal clamping of the valve stem nut, thereby realizing the opening treatment of the oil injection hole or positioning pin hole, improving practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall main structure of a valve stem fitting hole-opening device according to the present invention, showing the clamping of the valve stem nut.

[0015] Figure 2 This is a front view schematic diagram of the clamping mechanism of a valve stem fitting hole-opening device proposed in this utility model.

[0016] Figure 3 This is a front view structural diagram of the support mechanism for a valve stem fitting hole-opening device proposed in this utility model.

[0017] Figure 4 This is a bottom view schematic diagram of the adjustment mechanism of the valve stem fitting hole-opening device proposed in this utility model.

[0018] Figure 5 This is a bottom view of the hole-opening assembly of a valve stem fitting hole-opening device proposed in this utility model.

[0019] In the diagram: 1. Mounting platform; 2. Clamping mechanism; 201. Mounting plate; 202. Clamping motor; 203. Screw; 204. Positioning seat; 205. Clamping seat; 206. Slider; 207. Slide rail; 3. Support mechanism; 301. Dual-axis cylinder; 302. Connecting plate; 303. Support seat; 4. Mounting frame; 5. Support rod; 6. Adjustment mechanism; 601. Adjusting cylinder; 602. Connecting block; 603. Fixing frame; 7. Hole-opening assembly; 701. Lifting cylinder; 702. Mounting frame; 703. Drilling motor; 704. Drill chuck; 705. Drill bit. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1-3 A valve stem fitting drilling device includes a mounting platform 1. A clamping mechanism 2 is provided on the top of the mounting platform 1. The clamping mechanism 2 includes a clamping motor 202, a screw 203 connected to one end of the output shaft of the clamping motor 202 via a coupling, a positioning seat 204 bolted to the outer wall of the top of the mounting platform 1, and a clamping seat 205 bolted to the outer wall of the screw 203. Two mounting plates 201 are bolted to the outer wall of the top of the mounting platform 1. The clamping motor 202 is bolted to one side of the outer wall of the mounting plate 201. One end of the screw 203 passes through and is connected to one side of the outer wall of the mounting plate 201 via a bearing. The positioning seat 204 is slidably sleeved on the outer wall of the screw 203. The positioning seat 204 and the clamping seat 205 are located on one side of the screw 203. Rubber pads are installed on the outer walls to prevent damage to the valve stem nut during clamping. Two sliders 206 are bolted to the bottom outer walls of the positioning seat 204 and the clamping seat 205 respectively. Two slide rails 207 are bolted to the top outer wall of the mounting platform 1. The four sliders 206 are slidably mounted on the outer walls of the two slide rails 207 in pairs. The mounting platform 1 is provided with a support mechanism 3, which includes a dual-axis cylinder 301 and a support seat 303 with several arc-shaped grooves on its top outer wall. The piston rod of the dual-axis cylinder 301 is bolted to a connecting plate 302. The support seat 303 is bolted to the top outer wall of the connecting plate 302. Rubber pads are installed in the multiple arc-shaped grooves on the support seat 303.

[0022] Example 2, refer to Figure 1 and Figure 4-5 A valve stem fitting drilling device further includes a mounting frame 4 bolted to one outer wall of a mounting platform 1, and two support rods 5 bolted to the top outer wall of the mounting platform 1. The two support rods 5 are respectively bolted to the top inner wall of the mounting frame 4. The mounting frame 4 is equipped with an adjustment mechanism 6, which includes an adjustment cylinder 601 bolted to one outer wall of the mounting frame 4, a connecting block 602 bolted to one end of the piston rod of the adjustment cylinder 601, and a fixing frame 603 bolted to one outer wall of the connecting block 602. The top of the mounting frame 4... A channel is opened on the outer wall, and the fixing frame 603 is slidably installed in the channel. The fixing frame 603 is provided with a hole-opening assembly 7. The hole-opening assembly 7 includes a lifting cylinder 701 bolted to the top outer wall of the fixing frame 603, a mounting frame 702 bolted to the bottom end of the piston rod of the lifting cylinder 701, a drilling motor 703 and a drill bit 705 bolted to the bottom inner wall of the mounting frame 702. The mounting frame 702 is slidably sleeved in the fixing frame 603. A drill chuck 704 is detachably installed at the bottom end of the output shaft of the drilling motor 703, and the drill bit 705 is installed in the drill chuck 704.

[0023] Working principle: The piston rod of the dual-axis cylinder 301 drives the support seat 303 to rise, and then the valve stem nut with a hole is placed on the support seat 303. The positioning seat 204 is fixed with bolts so that the opening position of the valve stem nut is directly below the drill bit 705. The output shaft of the clamping motor 202 drives the screw 203 to rotate, which in turn causes the clamping seat 205 to move and cooperate with the positioning seat 204 to clamp the valve stem nut. The piston rod of the lifting cylinder 701 drives the drilling motor 703 and the drill bit 705 to fall. The output shaft of the drilling motor 703 drives the drill bit 705 to rotate. The piston rod of the adjusting cylinder 601 moves, which drives the fixing frame 603 and the drill bit 705 to move, drilling holes in multiple valve stem nuts.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A valve stem fitting drilling device, comprising a mounting platform (1), characterized in that, The mounting platform (1) is provided with a clamping mechanism (2) on its top. The clamping mechanism (2) includes a clamping motor (202), a screw (203) connected to one end of the output shaft of the clamping motor (202) via a coupling, a positioning seat (204) connected to the outer wall of the top of the mounting platform (1) via bolts, and a clamping seat (205) screwed to the outer wall of the screw (203). The mounting platform (1) is provided with a support mechanism (3), which includes a dual-shaft cylinder (301) and a support seat (303) with several arc-shaped grooves on the top outer wall. The mounting platform (1) has a mounting frame (4) bolted to one side of its outer wall. The mounting frame (4) is provided with an adjustment mechanism (6). The adjustment mechanism (6) includes an adjustment cylinder (601) bolted to one side of the outer wall of the mounting frame (4), a connecting block (602) bolted to one end of the piston rod of the adjustment cylinder (601), and a fixing frame (603) bolted to one side of the outer wall of the connecting block (602). The fixing frame (603) is provided with a hole-opening assembly (7), which includes a lifting cylinder (701) bolted to the top outer wall of the fixing frame (603), a mounting frame (702) bolted to the bottom end of the piston rod of the lifting cylinder (701), a drilling motor (703) and a drill bit (705) bolted to the bottom inner wall of the mounting frame (702).

2. The valve stem fitting drilling device according to claim 1, characterized in that, Two mounting plates (201) are bolted to the top outer wall of the mounting platform (1), and the clamping motor (202) is bolted to the outer wall of one side of the mounting plate (201). One end of the screw (203) passes through and is connected to the outer wall of one side of the mounting plate (201) through a bearing. The positioning seat (204) is slidably sleeved on the outer wall of the screw (203). Two sliders (206) are bolted to the bottom outer walls of the positioning seat (204) and the clamping seat (205). Two slide rails (207) are bolted to the top outer wall of the mounting platform (1), and the four sliders (206) are slidably installed on the outer walls of the two slide rails (207) in pairs.

3. The valve stem fitting drilling device according to claim 1, characterized in that, The piston rod of the dual-shaft cylinder (301) is bolted to a connecting plate (302), and the support seat (303) is bolted to the outer wall of the top of the connecting plate (302).

4. The valve stem fitting drilling device according to claim 1, characterized in that, The mounting platform (1) has two support rods (5) connected to the top outer wall by bolts, and the two support rods (5) are respectively connected to the top inner wall of the mounting frame (4) by bolts.

5. The valve stem fitting drilling device according to claim 1, characterized in that, The mounting bracket (4) has a channel on its top outer wall, and the fixing bracket (603) is slidably installed in the channel.

6. The valve stem fitting drilling device according to claim 1, characterized in that, The mounting frame (702) is slidably sleeved in the fixing frame (603), and the bottom end of the output shaft of the drilling motor (703) is detachably mounted with a drill chuck (704), and the drill bit (705) is installed in the drill chuck (704).

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