A milling apparatus for intake valve seats of air compressors

Abstract

This invention relates to the field of air compressor valve seat processing technology, specifically a milling device for air compressor intake valve seats. The device includes a load-bearing mechanism, a milling calibration mechanism mounted on the load-bearing mechanism, a laser cutter mounted within the milling calibration mechanism, a valve seat positioning mechanism movably mounted within the load-bearing mechanism, and a valve seat blank mounted within the valve seat positioning mechanism. The load-bearing mechanism includes a bottom beam frame with two vertical rods fixedly installed inside. By setting the load-bearing mechanism on the worktable and using it to adjust the position of the laser cutter along the upper surface of the valve seat blank via the milling calibration mechanism, and by effectively guiding the laser cutter's rays through the arc-shaped groove in the bottom support pad, and with the active rotation of the valve seat blank by the vertical shaft, the valve seat blank can be efficiently milled at the selected milling hole position, thus avoiding excessive mechanical pressure on the valve seat blank.

Description

Technical Field

[0001] This invention relates to the field of air compressor valve seat processing technology, specifically a milling apparatus for air compressor intake valve seats. Background Technology

[0002] The valve seat of an air compressor is mainly used to seal the valve and prevent gas leakage or backflow. The valve seat is an important component of the air valve, with a gas passage and providing effective support legs for the valve plate to ensure stable sealing performance.

[0003] Due to its special structure, valve seats have many drawbacks during the milling process. Existing laser milling and cutting equipment causes the valve seat body to heat up continuously during milling, and the residue generated during the cutting process can scratch the upper surface of the valve seat. Under mechanical extrusion and clamping, the temperature of the valve seat body changes drastically, and the cut surface will crack under the interference of mechanical extrusion force, which will seriously reduce the mechanical strength of the valve seat.

[0004] In view of this, a milling device for the intake valve seat of an air compressor was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A milling apparatus for an air compressor intake valve seat includes a load-bearing mechanism, a milling calibration mechanism mounted on the load-bearing mechanism, a laser cutter mounted within the milling calibration mechanism, a valve seat positioning mechanism movably mounted within the load-bearing mechanism, and a valve seat blank mounted within the valve seat positioning mechanism. The load-bearing mechanism includes a base beam frame, with two vertical rods fixedly mounted inside the base beam frame. An auxiliary support plate is fixedly mounted on each of the two vertical rods, and a horizontally positioned first double-acting screw is threaded onto the internal threads of the auxiliary support plate. The milling calibration mechanism includes a sliding plate movably mounted outside the two vertical rods. A limiting beam plate is movably mounted inside the sliding plate. Two lever arms are movably mounted on the sliding plate, with a main clamping seat movably mounted at the bottom end of each lever arm. A bottom support pad is fixedly mounted outside the main clamping seat, and a positioning plate is fixedly mounted inside the bottom support pad. The top end of the positioning plate is adapted to penetrate into the limiting beam plate, and the inner end of the first double-acting screw is movably mounted within the positioning plate. The laser cutter is installed in a hole at the outer end of the limiting beam plate. The valve seat positioning mechanism provides an effective load-bearing platform for the valve seat blank.

[0008] In a preferred embodiment, the present invention can be further configured as follows: two symmetrically distributed pads are fixedly installed on the inner side of the bottom beam frame, a fixing plate is fixedly installed on the inner side of the bottom beam frame, a chassis is installed on the fixing plate, a motor is fixedly installed inside the chassis, and a drive gear is fixedly installed on the motor.

[0009] In a preferred embodiment, the present invention can be further configured such that: a crossbar is fixedly installed in the middle of the outer side of the slide plate, a first spring is provided on the outside of the crossbar, and the other end of the crossbar is adapted to pass through the limiting beam plate, and the two ends of the first spring are respectively pressed on the slide plate and the limiting beam plate.

[0010] In a preferred embodiment, the present invention may be further configured such that: a secondary clamp is fixedly installed in the middle of the inner end of the base pad, an inclined spray pipe is installed in the secondary clamp, and an arc-shaped groove is opened inside the base pad, with the nozzle at the bottom end of the spray pipe facing the center of the arc-shaped groove.

[0011] In a preferred embodiment, the present invention can be further configured such that: the bottom support pad is generally fan-shaped, and two rectangular end rods are fixedly installed on the side of the bottom support pad facing the two vertical rods, and the two rectangular end rods are adapted to be inserted into the rectangular through holes inside the auxiliary support plate.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the valve seat positioning mechanism includes a vertical shaft movably installed in the bottom beam frame, an auxiliary gear fixedly installed on the rod segment at the bottom of the vertical shaft, two sets of first clamps fixedly installed on the outer wall of the vertical shaft, a second clamp and a third clamp symmetrically distributed fixedly installed on the outside of the vertical shaft, a second bidirectional lead screw movably installed in the second clamp, and the other end of the second bidirectional lead screw movably installed in the third clamp, and a plurality of evenly distributed inner supports movably installed in the hole at the top of the vertical shaft.

[0013] In a preferred embodiment, the present invention can be further configured as follows: a rectangular vertical groove is provided in the middle of the vertical shaft, and a built-in sliding pad is movably installed in the rectangular vertical groove. A pull rod is fixedly installed at the inner end of the built-in sliding pad, and a top pressure head is fixedly installed at the top end of the pull rod. The top pressure head is adapted to bear pressure in multiple inner support frames.

[0014] The built-in sliding pad thread is installed on the outside of the second bidirectional lead screw.

[0015] In a preferred embodiment, the present invention can be further configured as follows: a sliding sleeve is movably mounted on the outside of the vertical shaft, a plurality of evenly distributed traction members are movably mounted on the sliding sleeve, a valve-side pressure plate is movably mounted on the other end of the traction member, a plurality of evenly distributed trusses are fixedly mounted on the top end of the vertical shaft, a plug rod is fixedly mounted inside the valve-side pressure plate, a second spring is connected between the valve-side pressure plate and the truss, and the other end of the plug rod is adapted to penetrate into the truss;

[0016] The valve-side pressure plate is movably installed in a groove inside the truss;

[0017] Hydraulic components are fixedly installed inside both sets of the first clamps, and the hydraulic sub-rods inside the hydraulic components are installed inside the sliding sleeves.

[0018] In a preferred embodiment, the present invention can be further configured such that: a cylindrical hole is provided in the middle of the vertical shaft, and the tie rod is movably installed in the cylindrical hole; the bottom of the top pressure head has a frustum-shaped structure for tension control of multiple inner supports.

[0019] In a preferred embodiment, the present invention can be further configured such that: the length of the valve side pressure plate extending through the outer plate segment of the truss is the same as the width of the side of the valve seat blank, and the length of the inner support frame extending through the top plate segment of the vertical shaft is the same as the width of the middle hole wall of the valve seat blank.

[0020] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0021] 1. This invention sets up a load-bearing mechanism on the worktable and uses the load-bearing mechanism to drive the laser cutter to adjust its position along the upper surface of the valve seat blank by the milling hole calibration mechanism. With the help of the arc-shaped groove in the bottom support pad to effectively guide the laser cutter's rays, and with the active rotation of the valve seat blank after placement by the vertical axis, the valve seat blank can be milled and cut efficiently at the selected milling hole position, thereby avoiding excessive mechanical pressure on the valve seat blank.

[0022] 2. This invention utilizes the adaptation and fit of the lower surface of the bottom pad to the upper surface of the valve seat blank. The spray pipe, after being assembled on the valve seat blank and adjusted in angle, will work with the rays of the laser cutter to achieve precise cutting. Furthermore, the overflow waste generated after cutting will be effectively ground by the grinding layer on the lower surface of the bottom pad during the active rotation of the valve seat blank. This process cleans up the overflow of the valve seat blank before it cools and solidifies, effectively improving the mechanical strength of the valve seat blank after milling.

[0023] 3. The present invention uses the rotation of the first bidirectional lead screw to push the bottom support pad along the upper surface of the valve seat blank to adjust the spacing. After the bottom support pad is selected for the diameter and length milling hole along the upper surface of the valve seat blank, the positioning plate fixed in the bottom support pad will pull the limiting beam plate to adjust towards the center position of the valve seat blank. Finally, the valve seat blank can be positioned according to the requirements of its internal milling hole, ensuring the effectiveness of the milling hole of the valve seat blank. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0025] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 3 This is a bottom view diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the load-bearing mechanism of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic diagram of the milling calibration mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the valve seat positioning mechanism of the present invention;

[0031] Figure 8 For the present invention Figure 7 An explosion diagram;

[0032] Figure 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0033] Figure 10 For the present invention Figure 7 A partial diagram of the explosion.

[0034] Figure label:

[0035] 100. Load-bearing mechanism; 110. Bottom beam frame; 1101. Pad plate; 1102. Fixing plate; 120. Chassis; 1201. Motor; 1202. Drive gear; 130. Vertical rod; 140. Auxiliary support plate; 150. First double-acting lead screw;

[0036] 200. Milling calibration mechanism; 210. Slide plate; 2101. Crossbar; 2102. First spring; 220. Limiting beam plate; 230. Lever arm; 240. Base support pad; 2401. Main clamp; 2402. Secondary clamp; 250. Spray pipe; 260. Positioning plate;

[0037] 300. Laser cutter;

[0038] 400. Valve seat positioning mechanism; 410. Vertical shaft; 4101. Auxiliary gear; 4102. First clamp; 4103. Second clamp; 4104. Third clamp; 4105. Inner support frame; 420. Hydraulic component; 430. Second double-acting lead screw; 440. Built-in sliding pad; 4401. Tie rod; 4402. Top pressure head; 450. Truss; 460. Valve side pressure plate; 4601. Insert rod; 4602. Second spring; 470. Traction component; 480. Sliding sleeve;

[0039] 500. Valve seat blank. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0041] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0042] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a milling apparatus for an air compressor intake valve seat. Example 1:

[0043] Combination Figures 1 to 10 As shown, the present invention provides a milling apparatus for an air compressor intake valve seat, comprising a load-bearing mechanism 100, a milling calibration mechanism 200 mounted on the load-bearing mechanism 100, a laser cutter 300 mounted within the milling calibration mechanism 200, a valve seat positioning mechanism 400 movably mounted within the load-bearing mechanism 100, and a valve seat blank 500 mounted within the valve seat positioning mechanism 400. The load-bearing mechanism 100 provides effective support for the milling calibration mechanism 200 and the valve seat positioning mechanism 400. The laser cutter 300 performs fixed-point milling on the valve seat blank 500. The valve seat positioning mechanism 400 provides a rotation platform for the valve seat blank 500 and performs calibration clamping on the rotating valve seat blank 500.

[0044] The load-bearing mechanism 100 includes a bottom beam frame 110, with two vertical rods 130 fixedly installed inside the bottom beam frame 110. An auxiliary support plate 140 is fixedly installed on the two vertical rods 130, and a horizontally placed first double-acting screw 150 is threaded inside the auxiliary support plate 140.

[0045] The milling calibration mechanism 200 includes a slide plate 210 movably mounted outside two vertical rods 130. A limiting beam plate 220 is movably mounted inside the slide plate 210. Two lever arms 230 are movably mounted on the slide plate 210. A main clamping seat 2401 is movably mounted at the bottom end of the lever arms 230. A bottom support pad 240 is fixedly mounted outside the main clamping seat 2401. A positioning plate 260 is fixedly mounted inside the bottom support pad 240. The top end of the positioning plate 260 is adapted to penetrate into the limiting beam plate 220. The inner end of the first bidirectional lead screw 150 is movably mounted in the positioning plate 260.

[0046] The laser cutter 300 is installed in the hole at the outer end of the limiting beam plate 220;

[0047] The valve seat positioning mechanism 400 includes a vertical shaft 410 movably mounted within the bottom beam frame 110. An auxiliary gear 4101 is fixedly mounted on the bottom section of the vertical shaft 410. Two sets of first clamps 4102 are fixedly mounted on the outer wall of the vertical shaft 410. Symmetrically distributed second clamps 4103 and third clamps 4104 are fixedly mounted on the outside of the vertical shaft 410. A second bidirectional lead screw 430 is movably mounted within the second clamp 4103, and the other end of the second bidirectional lead screw 430 is movably mounted within the third clamp 4104. The vertical shaft 410 has a hole at its top. Multiple evenly distributed inner support frames 4105 are movably installed. A sliding sleeve 480 is movably installed on the outside of the vertical shaft 410. Multiple evenly distributed traction components 470 are movably installed on the sliding sleeve 480. A valve side pressure plate 460 is movably installed at the other end of the traction component 470. Multiple evenly distributed trusses 450 are fixedly installed at the top of the vertical shaft 410. A plug rod 4601 is fixedly installed inside the valve side pressure plate 460. A second spring 4602 is connected between the valve side pressure plate 460 and the truss 450, and the other end of the plug rod 4601 is adapted to penetrate into the truss 450.

[0048] The valve side pressure plate 460 is movably installed in the slide groove inside the truss 450. The hydraulic components 420 are fixedly installed in the two sets of first clamps 4102, and the hydraulic sub-rods in the hydraulic components 420 are installed in the slide sleeve 480.

[0049] In use, the second bidirectional lead screw 430 is rotated in advance until the top pressure head 4402 is lifted upwards until the multiple inner support frames 4105 lose their compressive force. Then, the multiple inner support frames 4105 are retracted towards the center of the end face of the vertical shaft 410. Then, the cloud-driven hydraulic component 420 is used until the hydraulic sub-rod inside the hydraulic component 420 drives the sliding sleeve 480 and multiple traction components 470 to extend upwards along the vertical shaft 410. The top of the traction component 470 will push the valve side pressure plate 460 to move outwards laterally. Then, the valve seat blank 500 is placed on the top of multiple trusses 450.

[0050] Next, the hydraulic components 420 control multiple traction components 470 and multiple valve side pressure plates 460 to close quickly. After closing, the multiple valve side pressure plates 460 will quickly calibrate and clamp the sides of the valve seat blank 500, while the multiple evenly distributed inner support frames 4105 will be inserted into the hole in the middle of the valve seat blank 500. By rotating the second bidirectional lead screw 430, until the built-in sliding pad 440, pull rod 4401 and top pressure head 4402 apply extrusion force to the multiple inner support frames 4105, the multiple inner support frames 4105 will further stabilize and clamp the middle hole wall of the valve seat blank 500.

[0051] Next, the first bidirectional lead screw 150 is rotated until it pushes the positioning plate 260 and the bottom support pad 240 to move laterally along the upper surface of the valve seat blank 500. The laser cutter 300, which is mounted on the inner end of the limiting beam plate 220, moves synchronously with the bottom support pad 240. Finally, the laser cutter 300 performs effective milling on the valve seat blank 500 under the positioning guidance of the arc-shaped groove inside the bottom support pad 240. At the same time, the coolant continuously sprayed by the spray pipe 250 will rapidly cool the milled part of the valve seat blank 500 along the center position of the arc-shaped groove. Example 2:

[0052] Combination Figures 4 to 7 As shown, based on Embodiment 1, two symmetrically distributed pads 1101 are fixedly installed on the inner side of the bottom beam frame 110, and a fixing plate 1102 is fixedly installed on the inner side of the bottom beam frame 110. A housing 120 is installed on the fixing plate 1102, and a motor 1201 is fixedly installed inside the housing 120. A drive gear 1202 is fixedly installed on the motor 1201.

[0053] Preferably, the pad 1101 has two through holes inside, and the two pads 1101 are bolted through the through holes and fixed to the work platform. The fixing plate 1102 has two horizontal holes inside, and two studs on the outside of the chassis 120 are respectively inserted into the two horizontal holes and fixed with nuts. The drive gear 1202 is adapted to mesh with the auxiliary gear 4101, and the vertical shaft 410 is installed in the bottom beam frame 110 through bearings.

[0054] A crossbar 2101 is fixedly installed on the middle of the outer side of the slide plate 210. A first spring 2102 is provided on the outside of the crossbar 2101, and the other end of the crossbar 2101 is adapted to pass through the limiting beam plate 220. The two ends of the first spring 2102 are respectively pressed on the slide plate 210 and the limiting beam plate 220. A secondary clamp 2402 is fixedly installed on the middle of the inner end of the bottom support pad 240. An inclined spray pipe 250 is installed in the secondary clamp 2402. An arc-shaped groove is opened inside the bottom support pad 240, and the nozzle at the bottom end of the spray pipe 250 faces the center of the arc-shaped groove.

[0055] The bottom support pad 240 has a fan-shaped structure, and two rectangular end rods are fixedly installed on the side of the bottom support pad 240 facing the two vertical rods 130. The two rectangular end rods are adapted to be inserted into the rectangular through holes inside the auxiliary support plate 140.

[0056] Preferably, a screw hole is provided in the plate end at the top of the 140, and the threaded section of the first bidirectional screw 150 is adapted to be installed in the screw hole in the top plate section of the auxiliary support plate 140. The limiting beam plate 220 has an overall U-shaped structure, and the plate end of the limiting beam plate 220 that extends to the outside of the slide plate 210 has a hole adapted to the crossbar 2101.

[0057] In addition, the top end of the spray pipe 250 is connected to an external cooling hose, and a spray head is installed at the bottom end of the spray pipe 250.

[0058] When the first bidirectional lead screw 150 pushes the bottom support pad 240 to move laterally along the upper surface of the valve seat blank 500, the main clamp 2401 will pull the lever arm 230 to extend, and the top of the lever arm 230 will drive the slide plate 210 to descend along the two vertical rods 130. Finally, while the limiting beam plate 220 moves laterally in coordination with the bottom support pad 240, it can also adjust the distance between the laser cutter 300 and the valve seat blank 500. Example 3:

[0059] Combination Figures 7 to 10 As shown, in the above embodiment, a rectangular vertical groove is provided in the middle of the vertical shaft 410, and a built-in sliding pad 440 is movably installed in the rectangular vertical groove. A pull rod 4401 is fixedly installed at the inner end of the built-in sliding pad 440, and a top pressure head 4402 is fixedly installed at the top end of the pull rod 4401. The top pressure head 4402 is adapted to bear pressure in multiple inner support frames 4105. The built-in sliding pad 440 is threadedly installed on the outside of the second bidirectional lead screw 430.

[0060] A cylindrical hole is provided in the middle of the vertical shaft 410, and the tie rod 4401 is movably installed in the cylindrical hole. The bottom of the top pressure head 4402 has a frustum-shaped structure, which is used to adjust the tension of multiple inner supports 4105.

[0061] Preferably, the inner end of the truss 450 is welded to the outer wall of the vertical shaft 410, and the six evenly distributed trusses 450 are flush with the top surface of the vertical shaft 410. The inner wall of the valve side pressure plate 460 is provided with a rough surface, and the rough surface has an arc-shaped structure to enhance the anti-slip protection of the side of the valve seat blank 500.

[0062] The length of the valve side pressure plate 460 extending to the outer plate of the truss 450 is the same as the width of the side of the valve seat blank 500, and the length of the inner support 4105 extending to the top plate of the vertical shaft 410 is the same as the width of the middle hole wall of the valve seat blank 500.

[0063] Preferably, a column head is fixedly installed on the inner wall of the truss 450, and a section of the insert rod 4601 extends through to the outside of the valve side pressure plate 460 and then through to the inside of the second spring 4602, and the other end of the second spring 4602 is engaged with the outside of the column head. The inner wall of the sliding sleeve 480 and the outer wall of the vertical shaft 410 are coated with lubricating oil.

[0064] The working principle and usage process of this invention are as follows: Two pads 1101 are fixedly installed on the upper surface of the workbench using bolts. Then, the first bidirectional lead screw 150 is rotated until it reverses. The first bidirectional lead screw 150 will drive the positioning plate 260 and the bottom support pad 240 to move closer to the auxiliary support plate 140 until the bottom support pad 240 is disengaged from directly above the evenly distributed multiple spray pipes 250. Then, the second bidirectional lead screw 430 is rotated until the built-in sliding pad 440, the pull rod 4401 and the top pressure head 4402 are lifted upward. Finally, the evenly distributed multiple inner support frames 4105 will lose pressure and retract towards the center of the vertical axis 410. Then, the hydraulic component 420 is operated through the cloud. The extension of the hydraulic sub-rod in the hydraulic component 420 controls the relative extension of the sliding sleeve 480, the traction component 470 and the valve side pressure plate 460 until the evenly distributed multiple valve side pressure plates 460 expand outward to the maximum opening state.

[0065] Then, the valve seat blank 500 is placed on top of multiple trusses 450, and the operation of the hydraulic components 420 is used to control multiple traction components 470 and multiple valve side pressure plates 460 to retract toward the center of the vertical axis 410 until the multiple valve side pressure plates 460 fit and clamp the sides of the valve seat blank 500. At the same time, the second bidirectional lead screw 430 is rotated, and the built-in sliding pad 440, pull rod 4401 and top pressure head 4402 are pulled and squeeze the multiple evenly distributed inner support frames 4105. Finally, the multiple inner support frames 4105 will fit and clamp the hole wall in the middle of the valve seat blank 500.

[0066] When it is necessary to perform milling operations on the valve seat blank 500, the first bidirectional lead screw 150 is used to push the bottom support pad 240 to move laterally along the upper surface of the valve seat blank 500. The positioning plate 260 fixed inside the bottom support pad 240 will drive the limiting beam plate 220 to move laterally outward. At this time, the laser cutter 300 fixed inside the limiting beam plate 220 will also move synchronously with the bottom support pad 240 until the running laser cutter 300 performs fixed-point milling on the inside of the valve seat blank 500 along the arc-shaped hole in the middle of the bottom support pad 240. At the same time as the milling operation, the spray pipe 250 sprays coolant into the arc-shaped hole in the middle of the bottom support pad 240. After the coolant is sprayed at a fixed point and an effective milling path is preset, the laser cutter 300 can perform efficient and low-loss upper milling on the valve seat blank 500.

[0067] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A milling apparatus for an air compressor intake valve seat, comprising a load-bearing mechanism (100), characterized in that, It also includes a milling calibration mechanism (200) mounted on the load-bearing mechanism (100), a laser cutter (300) mounted in the milling calibration mechanism (200), a valve seat positioning mechanism (400) movably mounted in the load-bearing mechanism (100), and a valve seat blank (500) mounted in the valve seat positioning mechanism (400). The load-bearing mechanism (100) includes a bottom beam frame (110), two vertical rods (130) are fixedly installed inside the bottom beam frame (110), and auxiliary support plates (140) are fixedly installed on the two vertical rods (130). A horizontally placed first double-acting screw (150) is threaded inside the auxiliary support plate (140). The milling calibration mechanism (200) includes a sliding plate (210) movably mounted outside two vertical rods (130). A limiting beam plate (220) is movably mounted inside the sliding plate (210). Two lever arms (230) are movably mounted on the sliding plate (210). A main clamp (2401) is movably mounted at the bottom end of the lever arm (230). A bottom support pad (240) is fixedly mounted outside the main clamp (2401). A positioning plate (260) is fixedly mounted inside the bottom support pad (240). The top end of the positioning plate (260) is adapted to penetrate into the limiting beam plate (220). The inner end of the first bidirectional lead screw (150) is movably mounted inside the positioning plate (260). An arc-shaped groove is opened inside the bottom support pad (240). The laser cutter (300) is installed in the hole at the outer end of the limiting beam plate (220); The valve seat positioning mechanism (400) is used to provide an effective bearing platform for the valve seat blank (500).

2. The milling apparatus for an air compressor intake valve seat according to claim 1, characterized in that, Two symmetrically distributed pads (1101) are fixedly installed on the inner side of the bottom beam frame (110), and a fixing plate (1102) is fixedly installed on the inner side of the bottom beam frame (110). A chassis (120) is installed on the fixing plate (1102), and a motor (1201) is fixedly installed inside the chassis (120). A drive gear (1202) is fixedly installed on the motor (1201).

3. A milling apparatus for an air compressor intake valve seat according to claim 1, characterized in that, A crossbar (2101) is fixedly installed in the middle of the outer side of the slide plate (210). A first spring (2102) is provided on the outside of the crossbar (2101), and the other end of the crossbar (2101) is adapted to pass through the limiting beam plate (220). The two ends of the first spring (2102) are respectively pressed on the slide plate (210) and the limiting beam plate (220).

4. A milling apparatus for an air compressor intake valve seat according to claim 1, characterized in that, A secondary clamp (2402) is fixedly installed in the middle of the inner end of the base pad (240). An inclined spray pipe (250) is installed in the secondary clamp (2402), and the nozzle at the bottom end of the spray pipe (250) faces the center of the arc-shaped groove.

5. A milling apparatus for an air compressor intake valve seat according to claim 1, characterized in that, The bottom support pad (240) has a fan-shaped structure, and two rectangular end rods are fixedly installed on the side of the bottom support pad (240) facing the two vertical rods (130), and the two rectangular end rods are adapted to be inserted into the rectangular through holes inside the auxiliary support plate (140).

6. A milling apparatus for an air compressor intake valve seat according to claim 1, characterized in that, The valve seat positioning mechanism (400) includes a vertical shaft (410) movably installed in the bottom beam frame (110). An auxiliary gear (4101) is fixedly installed on the rod section at the bottom of the vertical shaft (410). Two sets of first clamps (4102) are fixedly installed on the outer wall of the vertical shaft (410). A second clamp (4103) and a third clamp (4104) are symmetrically distributed and fixedly installed on the outside of the vertical shaft (410). A second double-acting screw (430) is movably installed in the second clamp (4103), and the other end of the second double-acting screw (430) is movably installed in the third clamp (4104). A plurality of evenly distributed inner supports (4105) are movably installed in the hole at the top of the vertical shaft (410).

7. A milling apparatus for an air compressor intake valve seat according to claim 6, characterized in that, A rectangular vertical groove is provided in the middle of the vertical shaft (410), and an internal sliding pad (440) is movably installed in the rectangular vertical groove. A pull rod (4401) is fixedly installed at the inner end of the internal sliding pad (440), and a top pressure head (4402) is fixedly installed at the top end of the pull rod (4401). The top pressure head (4402) is adapted to bear pressure in multiple internal support frames (4105). The built-in sliding pad (440) is threaded onto the outside of the second bidirectional lead screw (430).

8. A milling apparatus for an air compressor intake valve seat according to claim 6, characterized in that, A sliding sleeve (480) is movably mounted on the outside of the vertical shaft (410). A plurality of evenly distributed traction components (470) are movably mounted on the sliding sleeve (480). A valve-side pressure plate (460) is movably mounted on the other end of the traction component (470). A plurality of evenly distributed trusses (450) are fixedly mounted on the top of the vertical shaft (410). A plug rod (4601) is fixedly mounted inside the valve-side pressure plate (460). A second spring (4602) is connected between the valve-side pressure plate (460) and the truss (450). The other end of the plug rod (4601) is adapted to penetrate into the truss (450). The valve side pressure plate (460) is movably installed in a groove inside the truss (450); Hydraulic components (420) are fixedly installed in both sets of the first clamps (4102), and the hydraulic subrods in the hydraulic components (420) are installed in the sliding sleeves (480).

9. A milling apparatus for an air compressor intake valve seat according to claim 7, characterized in that, The vertical shaft (410) has a cylindrical hole in the middle, and the pull rod (4401) is movably installed in the cylindrical hole. The bottom of the top pressure head (4402) has a frustum-shaped structure and is used to adjust the tension of multiple inner supports (4105).

10. A milling apparatus for an air compressor intake valve seat according to claim 8, characterized in that, The length of the valve side pressure plate (460) extending to the outer plate section of the truss (450) is the same as the width of the side of the valve seat blank (500), and the length of the inner support frame (4105) extending to the top plate section of the vertical shaft (410) is the same as the width of the middle hole wall of the valve seat blank (500).

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