Valve machining device with self-cleaning function

Abstract

The invention relates to the technical field of valve machining equipment, and discloses a valve machining device with a self-cleaning function, which comprises an operation table, a dust removal mechanism for blowing and cleaning sweeps on the surface of the operation table is movably mounted on the back of the operation table, and a bidirectional adjusting mechanism is slidably mounted at the top of the operation table. A bidirectional adjusting mechanism is arranged on the top of the operating table, a clamping mechanism for stably clamping a valve is arranged on the top of the bidirectional adjusting mechanism, a downward pressing mechanism is arranged on the top of the clamping mechanism, and inclined grooves are formed in the two sides of the top of the operating table. And moreover, the adaptability of positioning and clamping of the valve in the valve machining process can be improved, nine triangular blocks in the first clamping plate and the two second clamping plates can be attached to the cambered surface of the valve to form eighteen supporting points, and the stability of positioning and clamping in the valve machining process is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of valve processing equipment, in particular to a valve processing device with a self-cleaning function. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems, from the simplest shut-off valves to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications. After the valve body is cast, it needs to be milled and formed, so the valve body must be well positioned to ensure the processing quality of the valve body.

[0003] After searching, the Chinese patent with the announcement number CN218874563U discloses a positioning tool for valve processing. The patent can clamp and fix the two ends of the valve body for valves of different sizes and models through the matching design of the first clamping plate and the second clamping plate, which effectively improves the stability of valve processing and further improves the applicability of the positioning tool. Although the patent improves the stability of valve positioning in valve processing in terms of structure, there are still the following problems:

[0004] 1. A lot of scraps will be generated during valve processing, and the scraps need to be cleaned manually, which is a waste of manpower;

[0005] 2. The first clamping plate and the second clamping plate are symmetrically designed to cooperate with each other for clamping, while the surface of the valve is mostly an arc surface, and the first clamping plate and the second clamping plate are at right angles. The supporting points of the first clamping plate and the second clamping plate for the valve are located at the tangent points of the first clamping plate and the second clamping plate and the arc surface of the valve, with a total of four supporting points, which leads to insufficient rigidity of the valve during the positioning process;

[0006] 3. The first clamping plate and the second clamping plate are fixed in the horizontal direction. In actual use, valves have many different models and sizes. The first clamping plate and the second clamping plate are fixed in the horizontal direction, resulting in insufficient adjustment flexibility of the first clamping plate and the second clamping plate, making the positioning adaptability of the processing tooling insufficient. Summary of the invention

[0007] Technical issues solved

[0008] In view of the deficiencies in the prior art, the present invention provides a valve processing device with a self-cleaning function, which is mainly used to solve the problems of insufficient waste chip cleaning function of the valve processing device and insufficient support rigidity and adaptability of the positioning tooling during valve processing.

[0009] Technical Solution

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A valve processing device with a self-cleaning function, including an operating table. A dust removal mechanism for blowing and cleaning the waste chips on its surface is movably installed on the back of the operating table. A two-way adjustment mechanism is slidably installed on the top of the operating table. A clamping mechanism for stably clamping the valve is arranged on the top of the two-way adjustment mechanism. A pressing mechanism is arranged on the top of the clamping mechanism. Oblique grooves are opened on both sides of the top of the operating table. A cleaning mechanism for conveniently removing waste chips is slidably installed in the oblique grooves.

[0012] The clamping mechanism includes a lower base. A first clamping plate is fixedly connected to the top of the lower base. An upper base is rotatably connected to the top of one end of the lower base. Second clamping plates are movably installed on both sides of the inner cavity of the upper base. Triangular blocks are embedded and installed in the inner cavities of the first clamping plate and the second clamping plate. The dust removal mechanism includes a swing shaft rotatably connected to one side of the operating table through a bearing seat. A high-pressure air gun is fixedly installed at the top of the swing shaft. A swing rod is fixedly connected to the bottom of the swing shaft. An elliptical groove is opened at one end of the swing rod. A motor is fixedly installed on the back of the operating table. A connecting rod is fixedly connected to the output end of the motor. One end of the top of the connecting rod is fixedly connected to a guide rod. The guide rod is slidably connected to the inner cavity of the elliptical groove.

[0013] As a further scheme of the present invention, the two-way adjustment mechanism includes a first screw rod with a two-way thread. The first screw rod is rotatably connected to the top of the operating table. A first thread sleeve is fixedly connected to the bottom of the lower base. The first thread sleeve is threadedly connected to the outside of the first screw rod.

[0014] As a further scheme of the present invention, a support sleeve fixedly connected to the operating table is sleeved at the middle position of the first screw rod. A limit ring is rotatably connected to the inner cavity of the support sleeve. The limit ring is fixedly connected to the outer wall of the first screw rod.

[0015] As a further scheme of the present invention, a limit rod is fixedly connected to the top of the operating table. A limit groove is opened at the top of the limit rod. A limit block is slidably connected in the limit groove. The limit block is fixedly connected to the bottom of the lower base.

[0016] As a further scheme of the present invention, the pressing mechanism includes a support frame. The support frame is fixedly connected to the top of the operating table. A third screw rod is threadedly connected to the top of the support frame. The third screw rod penetrates through the support plate. A pressing plate is rotatably connected to the lower end of the third screw rod. The pressing plate abuts against the upper end of the upper base.

[0017] As a further scheme of the present invention, positioning holes are opened on both sides of the top of the support frame. A positioning rod is slidably connected in the positioning holes. The positioning rod is fixedly connected to the top of the pressing plate.

[0018] As a further solution of the present invention, the cleaning mechanism includes a fixed rod, the fixed rod is fixedly connected to the back of the operating table near the inclined groove, a sliding sleeve is rotatably connected inside the fixed rod, a push rod is slidably connected inside the sliding sleeve, and one end of the push rod is fixedly connected with a scraping plate.

[0019] As a further solution of the present invention, a through groove is opened inside the upper base, one end of the second clamping plate is slidably connected inside the through groove, and a second screw rod is threadedly connected to the outer wall of the upper base, and the second screw rod is rotatably connected to the upper end of the second clamping plate.

[0020] Beneficial effects

[0021] Compared with the prior art, the present invention provides a valve processing device with a self-cleaning function, and has the following beneficial effects:

[0022] 1. By setting up a dust removal mechanism in the present invention, during use, the surface of the operating table is blown with high-pressure air by a high-pressure air gun, and at the same time, the motor drives the connecting rod to rotate. The connection drives the swing rod to reciprocate through the guide rod and the guide groove, and the swing rod drives the rotating shaft to reciprocate, so that the high-pressure air gun swings left and right, so that the high-pressure air gun can quickly clean the waste chips generated during the processing of the valve flange connection holes, and is suitable for the flange processing operations at different positions of the valve, solving the problem of waste of manpower caused by manually cleaning the waste chips generated during the valve processing.

[0023] 2. In the present invention, the waste chips are blown into the inclined groove by the high-pressure air gun. By using the cleaning mechanism, the push rod is pushed. The push rod moves inside the sliding sleeve and drives the scraping plate to clean the bottom of the inclined groove. Part of the waste chips fall from the inclined groove due to their own gravity, and part of them are driven by the scraping plate to fall, thereby further improving the convenience of waste chip cleaning.

[0024] 3. The valve is clamped by the first clamping plate and two second clamping plates. There are a total of nine triangular blocks in the first clamping plate and the two second clamping plates that fit and support the arc surface of the valve. Compared with four support points, the present invention greatly improves the stability of positioning and clamping during valve processing, and solves the problem of insufficient rigidity of positioning and support during valve processing.

[0025] 4. Through the bidirectional adjustment mechanism in the present invention, the first screw rod is rotated. The first screw rod is a bidirectional threaded rod, and the first screw rod drives the clamping mechanism to move towards or away from each other through the first thread sleeves on both sides, so that the distance between the two clamping mechanisms can be conveniently adjusted, achieving the effect of adapting to valves of different length dimensions for positioning and clamping, and solving the problem of insufficient adaptability of positioning and clamping during valve processing.

[0026] 5. By rotating the second screw rod, the second screw rod drives the second clamping plate to slide in the through groove of the upper base. The second clamping plates on both sides of the inner cavity of the upper base can conveniently adjust the pressure, improving the adaptability of the clamping mechanism to position and clamp valves with different appearances, and further enhancing the adaptability of positioning and clamping during the valve processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 6 is a front three-dimensional structural schematic diagram of a valve processing device with a self-cleaning function proposed by the present invention;

[0028] Figure 2 FIG. 10 is a back three-dimensional structural schematic diagram of a valve processing device with a self-cleaning function proposed by the present invention;

[0029] Figure 3 FIG. 14 is a front three-dimensional structural schematic diagram of a clamping mechanism of a valve processing device with a self-cleaning function proposed by the present invention;

[0030] Figure 4 FIG. 18 is a front three-dimensional structural schematic diagram of a bidirectional adjustment mechanism of a valve processing device with a self-cleaning function proposed by the present invention;

[0031] Figure 5 FIG. 22 is a Figure 1 magnified structural schematic diagram of part A of a valve processing device with a self-cleaning function proposed by the present invention;

[0032] Figure 6 FIG. 28 is a Figure 3 magnified structural schematic diagram of part B of a valve processing device with a self-cleaning function proposed by the present invention.

[0033] In the figures: 1, operating table; 11, inclined groove; 2, dust removal mechanism; 21, swing shaft; 22, high-pressure air gun; 23, swing rod; 24, elliptical groove; 25, guide rod; 26, connecting rod; 27, motor; 3, bidirectional adjustment mechanism; 31, limit rod; 32, limit groove; 33, limit block; 34, first screw rod; 35, first threaded sleeve; 36, support sleeve; 37, limit ring; 4, clamping mechanism; 41, lower base; 42, first clamping plate; 43, upper base; 44, second clamping plate; 45, second screw rod; 46, through groove; 47, triangular block; 5, downward pressing mechanism; 51, support frame; 52, third screw rod; 53, pressing plate; 54, positioning hole; 55, positioning rod; 6, cleaning mechanism; 61, fixed rod; 62, sliding sleeve; 63, push rod; 64, scraping plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The serial numbers assigned to the components in this article itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] Referring to Figures 1-6 , a valve processing device with a self-cleaning function, includes an operating table 1, a dust removal mechanism 2 for pneumatically blowing and cleaning the waste chips on its surface is movably installed on the back of the operating table 1, a two-way adjustment mechanism 3 is slidably installed on the top of the operating table 1, a clamping mechanism 4 for stably clamping the valve is arranged on the top of the two-way adjustment mechanism 3, a pressing mechanism 5 is arranged on the top of the clamping mechanism 4, inclined slots 11 are opened on both sides of the top of the operating table 1, and a cleaning mechanism 6 for conveniently removing the waste chips is slidably installed in the inclined slots 11;

[0038] The clamping mechanism 4 includes a lower base 41. A first clamping plate 42 is fixedly connected to the top of the lower base 41. One end of the top of the lower base 41 is rotatably connected to an upper base 43. Second clamping plates 44 are movably installed on both sides of the inner cavity of the upper base 43. Triangular blocks 47 are embedded in the inner cavities of the first clamping plate 42 and the second clamping plates 44. The dust removal mechanism 2 includes a swing shaft 21 rotatably connected to one side of the operating table 1 through a bearing block. A high-pressure air gun 22 is fixedly installed at the top end of the swing shaft 21. A swing rod 23 is fixedly connected to the bottom of the swing shaft 21. An elliptical groove 24 is opened at one end of the swing rod 23. A motor 27 is fixedly installed on the back of the operating table 1. A connecting rod 26 is fixedly connected to the output end of the motor 27. One end of the top of the connecting rod 26 is fixedly connected to a guide rod 25. The guide rod 25 is slidably connected to the inner cavity of the elliptical groove 24;

[0039] It should be noted that the dust removal mechanism 2 is used to clean the waste chips on the surface of the operating table 1. The motor 27 rotates and drives the connecting rod 26 to make a circular motion. The connecting rod 26 drives the guide rod 25 to make a circular motion in the guide groove of the swing rod 23, so that the swing rod 23 swings reciprocally. The swing rod 23 swings reciprocally to drive the swing shaft 21 to rotate reciprocally, so that the high-pressure air gun 22 swings reciprocally, increasing the cleaning area of the high-pressure air gun 22. The inclined groove 11 cooperates with the cleaning mechanism 6 to clean the waste chips blown onto the inclined groove 11 by the high-pressure air gun 22. The clamping mechanism 4 clamps the valve. Push the upper base 43 to rotate on the top of the upper base 43 and place the valve in the inner cavity of the first clamping plate 42. Rotate the upper base 43 again to close it with the lower base 41. The two second clamping plates 44 cooperate with the first clamping plate 42 to position and clamp the valve. At this time, the nine triangular blocks 47 in the first clamping plate 42 and the second clamping plates 44 provide eighteen support points for the valve, improving the rigidity of the valve positioning support. At this time, the pressing mechanism 5 is used to press the upper base 43, thus achieving the effect of positioning and clamping the valve.

[0040] Especially in the present invention, the bidirectional adjustment mechanism 3 includes a first screw rod 34 with a bidirectional thread. The first screw rod 34 is rotatably connected to the top of the operating table 1. A first threaded sleeve 35 is fixedly connected to the bottom of the lower base 41. The first threaded sleeve 35 is threadedly connected to the outside of the first screw rod 34. A support sleeve 36 fixedly connected to the operating table 1 is sleeved at the middle position of the first screw rod 34. A limit ring 37 is rotatably connected to the inner cavity of the support sleeve 36. The limit ring 37 is fixedly connected to the outer wall of the first screw rod 34. A limit rod 31 is fixedly connected to the top of the operating table 1. A limit groove 32 is opened at the top of the limit rod 31. A limit block 33 is slidably connected in the limit groove 32. The limit block 33 is fixedly connected to the bottom of the lower base 41;

[0041] It should be noted that by rotating the first screw rod 34, the first screw rod 34 is a screw rod with double threads. The first thread rotates stably in the inner cavity of the support sleeve 36 by means of the limit ring 37. The first thread sleeve 35 cooperates with the first screw rod 34 to drive the lower bases 41 on both sides to move relatively or towards each other. When the lower bases 41 move, the limit blocks 33 are driven to slide in the limit grooves 32 of the limit rods 31, so that the lower bases 41 can slide stably. This structure can conveniently adjust the distance between the lower bases 41 on both sides, achieving the purpose of adjusting the distance between the clamping mechanisms 4 on both sides.

[0042] In particular, in the present invention, the pressing mechanism 5 includes a support frame 51, the support frame 51 is fixedly connected to the top of the operating table 1, the top of the support frame 51 is threadedly connected with a third screw rod 52, the third screw rod 52 penetrates through the support plate, the lower end of the third screw rod 52 is rotatably connected to a pressing plate 53, the pressing plate 53 abuts against the upper end of the upper base 43, and positioning holes 54 are opened on both sides of the top of the support frame 51. A positioning rod 55 is slidably connected in the positioning holes 54, and the positioning rod 55 is fixedly connected to the top of the pressing plate 53;

[0043] It should be noted that by rotating the third screw rod 52, the third screw rod 52 drives the lower pressing plate 53 to press the upper base 43 downward. The threaded locking force of the threaded connection between the support frame 51 and the third screw rod 52 presses the pressing plate 53 so that the upper base 43 and the lower base 41 can stably clamp the valve. When the pressing plate 53 moves up and down, the positioning rod 55 is driven to slide in the positioning holes 54, so that the pressing plate 53 can stably move up and down without rotating.

[0044] In particular, in the present invention, the cleaning mechanism 6 includes a fixed rod 61, the fixed rod 61 is fixedly connected to the back of the operating table 1 near the inclined groove 11, a sliding sleeve 62 is rotatably connected in the inner cavity of the fixed rod 61, a push rod 63 is slidably connected in the inner cavity of the sliding sleeve 62, and one end of the push rod 63 is fixedly connected to a scraping plate 64;

[0045] It should be noted that by pushing the push rod 63, the push rod 63 slides in the sliding sleeve 62 in the inner cavity of the fixed rod 61 and drives the scraping plate 64. The scraping plate 64 cleans the waste chips on the inner wall of the inclined groove 11. The sliding sleeve 62 is rotatably installed in the inner cavity of the fixed rod 61, making it more labor-saving when the push rod 63 is pulled back, improving the convenience of waste chip cleaning during valve processing.

[0046] In particular, in the present invention, a through groove 46 is opened in the inner cavity of the upper base 43. One end of the second clamping plate 44 is slidably connected inside the through groove 46. The outer wall of the upper base 43 is threadedly connected with a second screw rod 45. The second screw rod 45 penetrates through the through groove 46 and is rotatably connected to the end of the second clamping plate 44;

[0047] It should be noted that by rotating the third screw rod 52, the third screw rod 52 drives the second clamping plate 44 to slide within the through slot 46 of the upper base 43. The distance between the second clamping blocks on both sides can be adjusted, enabling the pressure of the second clamping plate 44 on the valve to be conveniently adjusted, thereby improving the adaptability of the clamping mechanism 4 for positioning and clamping valves with different appearances.

[0048] When the present invention is in use, it is divided into the following steps:

[0049] S1: When in use, the pressing plate 53 of the pressing mechanism 5 resets to the highest position, pushing the upper base 43 of the clamping mechanism 4 to rotate on the lower base 41. Place the two ends of the valve on the two first clamping plates 42 respectively, and make the flanges at both ends of the valve located above the two inclined slots 11 respectively;

[0050] S2: Adjust the position through the bidirectional adjustment mechanism 3. Rotate the first screw rod 34. The first screw rod 34 stably rotates within the support sleeve 36 by means of the limit ring 37. The first threaded sleeve 35 moves on the first screw rod 34 and pushes the lower bases 41 on both sides to move. When the lower bases 41 move, they drive the limit blocks 33 to move within the limit slots 32 of the limit rods 31, enabling the lower bases 41 on both sides to move stably. Adjust the position of the horizontal support point, and then push the upper base 43 to rotate and close with the lower base 41 again;

[0051] S3: Adjust the distance between the second clamping plates 44 by rotating the second screw rod 45 to adapt to the appearance of the valve. The third screw rod 52 rotates to drive the second clamping plate 44 to slide within the through slot 46, and adjust the second clamping plate 44 according to the appearance of the valve;

[0052] S4: Compact the upper base 43 through the pressing mechanism 5. Rotate the third screw rod 52 on the support frame 51. The third screw rod 52 drives the pressing plate 53 to press down on the upper base 43. When the pressing plate 53 moves downward, the positioning rod 55 follows the pressing plate 53 and slides downward within the positioning hole 54, ensuring that the pressing plate 53 does not rotate during the pressing process;

[0053] S5: There are a total of nine triangular blocks 47 on the first clamping plate 42 and the two second clamping plates 44. The nine triangular blocks 47 form eighteen support points for the arc surface of the valve, greatly improving the stability of valve positioning and clamping. At this time, the positioning and clamping are completed;

[0054] S6: When processing a straight-through valve, the waste chips generated from machining the flanges at both ends of the valve will fall into the inclined slots 11. Use the cleaning mechanism 6 to clean the waste chips falling into the inclined slots 11. Push the push rod 63. The push rod 63 slides within the sliding sleeve 62 and drives the scraping plate 64 to scrape the waste chips in the inclined slots 11. Then press down the push rod 63. The push rod 63 drives the sliding sleeve 62 to rotate within the inner cavity of the fixed rod 61, and one end of the scraping plate 64 is lifted. At this time, it is more labor-saving to retract the scraping plate 64;

[0055] S7: When processing a three-way valve, the waste chips generated during the machining of the vertical end flange of the valve will fall on the top of the operating table 1. Therefore, the dust removal mechanism 2 is used to clean the waste chips on the top of the operating table 1. The motor 27 is started, and the motor 27 drives the connecting rod 26 to move in a circular motion. The connecting rod 26 drives the guide rod 25 to move in a circular motion within the elliptical groove 24 of the swing rod 23, causing the swing rod 23 to swing reciprocally. The swing shaft 21 follows the swing rod 23 to move reciprocally, enabling the high-pressure air gun 22 to blow high-pressure air on the top of the operating table 1 for dust removal, causing the waste chips to be blown off;

[0056] S8: After a valve is processed, the third screw 52 is rotated again to drive the pressing plate 53 to cancel the pressure on the upper base 43, and the upper base 43 is rotated to take out the valve. At this time, the process of processing one valve is completed. By repeating the above operations in sequence, the processing of the next valve can be carried out.

[0057] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0058] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A valve processing device with a self-cleaning function, including an operation table (1), characterized in that, A dust removal mechanism (2) for blowing and cleaning waste chips on the surface of the operating table (1) is movably installed on the back of the operating table (1). A two-way adjustment mechanism (3) is slidably installed on the top of the operating table (1). A clamping mechanism (4) for stably clamping a valve is arranged on the top of the two-way adjustment mechanism (3). A pressing mechanism (5) is arranged on the top of the clamping mechanism (4). Oblique grooves (11) are formed on both sides of the top of the operating table (1). A cleaning mechanism (6) for conveniently removing waste chips is slidably installed in the oblique grooves (11). The clamping mechanism (4) includes a lower base (41). A first clamping plate (42) is fixedly connected to the top of the lower base (41). The top of one end of the lower base (41) is rotatably connected to an upper base (43). Second clamping plates (44) are movably installed on both sides of the inner cavity of the upper base (43). Triangular blocks (47) are embedded in the inner cavities of the first clamping plate (42) and the second clamping plates (44). The dust removal mechanism (2) includes a swing shaft (21) rotatably connected to one side of the operating table (1) through a bearing seat. A high-pressure air gun (22) is fixedly installed at the top end of the swing shaft (21). A swing rod (23) is fixedly connected to the bottom of the swing shaft (21). An elliptical groove (24) is formed at one end of the swing rod (23). A motor (27) is fixedly installed on the back of the operating table (1). A connecting rod (26) is fixedly connected to the output end of the motor (27). A guide rod (25) is fixedly connected to one end of the top of the connecting rod (26). The guide rod (25) is slidably connected to the inner cavity of the elliptical groove (24).

2. The valve processing device with a self-cleaning function according to claim 1, wherein The two-way adjustment mechanism (3) includes a first screw rod (34) with a two-way thread. The first screw rod (34) is rotatably connected to the top of the operating table (1). A first thread sleeve (35) is fixedly connected to the bottom of the lower base (41). The first thread sleeve (35) is threadedly connected to the outside of the first screw rod (34).

3. A valve processing device with a self-cleaning function according to claim 2, characterized in that, A support sleeve (36) fixedly connected to the operating table (1) is sleeved at the middle position of the first screw rod (34). A limiting ring (37) is rotatably connected to the inner cavity of the support sleeve (36). The limiting ring (37) is fixedly connected to the outer wall of the first screw rod (34).

4. A valve processing device with a self-cleaning function according to claim 1, characterized in that, A limiting rod (31) is fixedly connected to the top of the operating table (1). A limiting groove (32) is formed at the top of the limiting rod (31). A limiting block (33) is slidably connected in the limiting groove (32). The limiting block (33) is fixedly connected to the bottom of the lower base (41).

5. A valve processing device with a self-cleaning function according to claim 1, characterized in that, The pressing mechanism (5) includes a support frame (51). The support frame (51) is fixedly connected to the top of the operating table (1). A third screw rod (52) is threadedly connected to the top of the support frame (51). The lower end of the third screw rod (52) is rotatably connected to a pressing plate (53). The pressing plate (53) abuts against the upper end of the upper base (43).

6. A valve processing device with a self-cleaning function according to claim 5, characterized in that, Positioning holes (54) are formed on both sides of the top of the support frame (51). Positioning rods (55) are slidably connected in the positioning holes (54). The positioning rods (55) are fixedly connected to the top of the pressing plate (53).

7. A valve processing device with a self-cleaning function according to claim 1, characterized in that, The cleaning mechanism (6) includes a fixed rod (61), the fixed rod (61) is fixedly connected to the back of the operating table (1) near the inclined groove (11), a sliding sleeve (62) is rotatably connected to the inner cavity of the fixed rod (61), a push rod (63) is slidably connected to the inner cavity of the sliding sleeve (62), and one end of the push rod (63) is fixedly connected to a scraping plate (64).

8. A valve processing device with a self-cleaning function according to claim 1, characterized in that, A through groove (46) is formed in the inner cavity of the upper base (43), one end of the second clamping plate (44) is slidably connected to the inside of the through groove (46), and a second screw rod (45) is threadedly connected to the outer wall of the upper base (43), and the second screw rod (45) is rotatably connected to the upper end of the second clamping plate (44).

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