Grinding device for sealing surface of valve

Abstract

The utility model belongs to the technical field of valve machining, and particularly relates to a valve sealing face grinding device which comprises a workbench, a valve body, fixing seats, clamping plates, an air pipe, a transverse flow dividing barrel, a control ball valve and a polishing assembly. The air pipe is connected with the transverse flow dividing cylinder, a control ball valve is arranged in the transverse flow dividing cylinder to adjust the direction and flow of airflow, and the structure of the transverse flow dividing cylinder is matched with the clamping plate through hole to convey cooling airflow into the valve body for cooling and scrap cleaning. A threaded rod driven by a servo motor and a sliding moving seat are installed on the workbench, a lifting table and a driving motor are installed on the moving seat in a sliding mode, a polishing grinding wheel is fixed to the output end of the driving motor, accurate position control over the polishing grinding wheel is achieved through cooperation of the servo motor and the lifting table, and therefore the sealing face of the valve body is efficiently ground and polished. The device has the characteristics of being high in machining precision, good in cooling effect, high in scrap cleaning efficiency, convenient and fast to operate and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve machining technical field, concretely relates to a valve sealing surface grinding device. BACKGROUND

[0002] The valve sealing surface is an important component of the valve, and its processing quality directly affects the sealing performance and service life of the valve. In the prior art, the processing of the valve sealing surface mainly relies on manual or semi-automatic equipment for grinding. However, manual grinding has the problems of low processing precision, low efficiency and high labor intensity of the operator; and the existing semi-automatic grinding equipment usually lacks effective control of the internal temperature of the valve body and the processing debris during processing, which may cause unstable processing quality, or even damage the sealing surface.

[0003] For example, the Chinese patent with publication number CN217860510U discloses an automatic large-diameter valve body sealing surface grinding device, which adopts a gantry frame type assembly structure, is equipped with an independent liquid supply unit, the grinding fluid flow is adjustable, and has self-rotation and revolution two-way motion functions. However, this device is mainly aimed at large-diameter valve bodies, and does not consider the treatment of high temperature and debris inside the valve body during grinding, which may affect the processing quality and efficiency.

[0004] In addition, the Chinese patent with publication number CN118528123A discloses a valve sealing surface processing device and a processing method thereof, which grinds the conical sealing surface through a support cylinder and a grinding part, and is suitable for processing different valve conical sealing surfaces. However, this device does not propose effective measures for the high temperature and debris generated during grinding, which may cause the quality of the processed surface to decrease.

[0005] Therefore, the valve sealing surface grinding devices in the prior art have the following technical problems:

[0006] 1. Lack of effective cooling measures for the high temperature generated during processing, which may cause the quality of the processed surface to decrease;

[0007] 2. Lack of timely cleaning of processing debris, which affects the running efficiency of the equipment;

[0008] 3. Some devices cannot realize continuous operation of multiple stations, which reduces the overall processing efficiency of the equipment. UTILITY MODEL CONTENT

[0009] In view of the problems in the prior art, the utility model aims to provide a valve sealing surface grinding device which can realize effective cooling and timely cleaning of processing debris.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0011] A valve sealing surface grinding device, it includes workbench and valve body, the workbench is provided with fixed seat symmetrically, the two fixed seat vertical fixed with clamping plate on the side of each other, the upper surface of fixed seat is equipped with the sliding slot on the end of mutual away, the sliding slot is equipped with clamping screw internally, the clamping screw penetrates the fixed seat side and is equipped with knob at the end, the sliding slot is equipped with sliding block internally, the sliding block is screwed on clamping screw, the upper surface of sliding block is also equipped with clamping plate, the two clamping plate corresponds each other, the valve body is between the two clamping plate, the upper surface center of workbench is vertically fixed with air pipe, the air pipe is connected on fan at the bottom, the air pipe top is fixed with horizontal flow dividing cylinder, the horizontal flow dividing cylinder is between the two valve body.

[0012] Further, the clamping plate inside surface is uniformly provided with the positioning bolt corresponding to the valve body flange hole, the clamping plate surface center is equipped with through-hole, the through-hole corresponds with the valve inlet and outlet flow channel, the horizontal flow dividing cylinder two ends correspond with two side through-holes respectively.

[0013] Further, the horizontal flow dividing cylinder inside center is rotatably installed with control ball valve, the control ball valve air inlet end is below and corresponds with air pipe, the control ball valve air outlet is horizontally provided, the control ball valve top is vertically provided with rotating shaft, the rotating shaft penetrates the horizontal flow dividing cylinder upper surface, the rotating shaft top is provided with knob.

[0014] Further, the rotating shaft surface is symmetrically provided with positioning hole, the positioning hole is parallelly provided with control ball valve air outlet, the horizontal flow dividing cylinder upper surface one side is vertically provided with fixed plate.

[0015] Further, the fixed plate surface is horizontally slidably penetrated with slide rod, one end of the slide rod is provided with extrusion ball head, the extrusion ball head is adapted to the inside size of positioning hole, the slide rod surface is sleeved with spring, the spring is between extrusion ball head and fixed plate.

[0016] Further, the workbench upper surface is vertically and laterally rotatably installed with threaded rod, one end of the threaded rod is installed on the output end of servo motor, the workbench upper surface rear side is slidably installed with moving base, the moving base is screwed on threaded rod, the moving base front surface is vertically slidably installed with lifting platform, the lifting platform extends forward.

[0017] Further, the lifting platform end is fixed with driving motor, the driving motor output end is downwardly provided, the driving motor output end is installed with polishing grinding wheel, the polishing grinding wheel corresponds with valve sealing surface of valve body.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The present application can stably clamp the valve body on the workbench by setting the clamping plate and the clamping screw rod, and can realize accurate positioning of the valve body by cooperation of the positioning bolt and the flange connecting hole of the valve body, and keep the sealing surface upward, the through hole on the clamping plate corresponds to the inlet and outlet flow passages of the valve body, and provides a smooth airflow passage for the air pipe and the transverse flow dividing cylinder, thereby effectively solving the problem of inaccurate positioning of the valve body in the prior art, and improving the stability of processing.

[0020] The transverse flow dividing cylinder can realize accurate control of one-side air outlet by the internally arranged control ball valve and the connected rotating shaft, and can ensure that the air outlet direction of the control ball valve can be flexibly adjusted and reliably positioned by rotating the rotating shaft and using the limiting structure of the spring and the extruded ball head, thereby being capable of efficiently cooling and cleaning the inside of the valve body during processing, and avoiding the problem of reduced processing quality caused by high temperature and debris in the prior art.

[0021] The present application utilizes the servo motor to drive the threaded rod to realize accurate lateral adjustment of the moving seat, and controls the height of the polishing grinding wheel through the lifting platform, so that the polishing grinding wheel can accurately enter the inside of the valve body sealing surface to complete efficient grinding and polishing work, compared with the prior art, not only improves the processing precision, but also reduces the operation complexity, and solves the technical problem that the existing equipment cannot adapt to various valve body sizes and sealing surface shapes.

[0022] Through the double-station design, polishing and feeding and discharging operations can be simultaneously performed, and the utilization efficiency of the equipment is improved; in combination with the synergistic effect of the air pipe and the transverse flow dividing cylinder, effective control of debris and high temperature during processing is realized, thereby improving the efficiency and quality of valve sealing surface processing, and prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the present application;

[0024] Figure 2 It is an installation three-dimensional structural schematic diagram of the present application;

[0025] Figure 3 It is a polishing grinding wheel installation structural schematic diagram of the present application;

[0026] Figure 4 It is a valve body installation cross-sectional structural schematic diagram of the present application;

[0027] Figure 5 It is a clamping plate installation three-dimensional structural schematic diagram of the present application;

[0028] Figure 6 It is an air pipe and flow dividing cylinder structural schematic diagram of the present application.

[0029] In the drawings, the component list represented by each reference numeral is as follows:

[0030] 1, workbench; 2, threaded rod; 3, moving seat; 4, lifting platform; 5, driving motor; 6, polishing grinding wheel; 7, fixed seat; 71, sliding groove; 8, clamping plate; 81, positioning bolt; 82, through hole; 9, clamping screw; 10, sliding block; 11, valve body; 12, air pipe; 13, transverse flow distribution cylinder; 131, fixed plate; 14, control ball valve; 15, rotating shaft; 151, positioning hole; 16, sliding rod; 17, extrusion ball head; 18, spring. DETAILED DESCRIPTION

[0031] In order to make the purpose and advantages of the utility model more clearly, the following will be specifically described with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0032] Reference Figures 1-6 As shown in the figure, a valve sealing surface grinding device, including workbench 1 and valve body 11, the two sides of workbench 1 symmetrically arranged with fixed seat 7, the side of two fixed seats 7 close to each other is vertically fixed with clamping plate 8;The end of the upper surface of fixed seat 7 away from each other is provided with sliding groove 71, the inside of sliding groove 71 is rotatably installed with clamping screw 9, clamping screw 9 penetrates the side of fixed seat 7, the end of clamping screw 9 is provided with knob;The inside of sliding groove 71 is slidably installed with sliding block 10, sliding block 10 is screwed on clamping screw 9, so as to adjust the position of sliding block 10;The upper surface of sliding block 10 is vertically provided with clamping plate 8, two clamping plates 8 correspond to each other to fix valve body 11;Valve body 11 is placed between two clamping plates 8, and the stable clamping of valve body 11 can be realized by rotating clamping screw 9, and the sealing surface of valve body 11 is upward;The center of the upper surface of workbench 1 is vertically fixed with air pipe 12, the bottom of air pipe 12 is connected to the fan, the top of air pipe 12 is fixed with transverse flow distribution cylinder 13, the two ends of transverse flow distribution cylinder 13 respectively face two valve bodies 11.

[0033] Reference Figure 2 And Figure 4 As shown in the figure, the inner side of clamping plate 8 is uniformly provided with positioning bolt 81 corresponding to the flange hole of valve body 11, and the positioning bolt 81 can be matched with the flange connecting hole of valve body 11 to realize accurate positioning;The surface center of clamping plate 8 is provided with through hole 82, and the through hole 82 corresponds to the inlet and outlet flow passage of valve body 11, so that air can flow smoothly into the inside of valve body 11;The two ends of transverse flow distribution cylinder 13 correspond to two side through holes 82 respectively, for distributing the airflow from air pipe 12 to the inlet and outlet flow passage of valve body 11.

[0034] Reference Figure 4 And Figure 6As shown, the inside center of the transverse distribution cylinder 13 is rotatably installed with a control ball valve 14 for adjusting the direction of air flow; the air inlet end of the control ball valve 14 is located below and corresponds to the outlet of the air pipe 12, and the air outlet of the control ball valve 14 is horizontally opened; the top of the control ball valve 14 is vertically provided with a rotating shaft 15 which penetrates the top of the transverse distribution cylinder 13, and the top of the rotating shaft 15 is provided with a knob for manually adjusting the air outlet direction of the control ball valve 14, so that the cold air entering through the air pipe 12 only flows to one side, thereby avoiding waste in the other non-processing station.

[0035] Reference Figure 6 As shown, the surface of the rotating shaft 15 is symmetrically provided with a positioning hole 151 which is parallel to the air outlet of the control ball valve 14 and is used for limiting after adjustment; the upper surface of the transverse distribution cylinder 13 is vertically provided with a fixed plate 131 for installing a sliding limiting mechanism; a sliding rod 16 penetrates the surface of the fixed plate 131 horizontally, and one end of the sliding rod 16 is provided with a squeezing ball head 17 which is matched in size with the positioning hole 151; a spring 18 is sleeved on the surface of the sliding rod 16 and is arranged between the squeezing ball head 17 and the fixed plate 131, so that when the rotating shaft 15 is rotated to a predetermined position, the spring 18 pushes the squeezing ball head 17 into the positioning hole 151 to achieve limiting.

[0036] Reference Figure 2 And Figure 3 As shown, the upper surface of the workbench 1 is vertically and transversely rotatably installed with a threaded rod 2, one end of which is connected with the output end of a servo motor; the rear side of the upper surface of the workbench 1 is slidably installed with a moving seat 3 which is screwed on the threaded rod 2; the front surface of the moving seat 3 is vertically slidably installed with a lifting platform 4 which extends forward and is fixed at the end with a driving motor 5.

[0037] Reference Figure 3 As shown, the output end of the driving motor 5 is vertically and downwardly arranged and is installed with a polishing grinding wheel 6, and the machining surface of the polishing grinding wheel 6 corresponds to the sealing surface of the valve body 11; by driving the moving seat 3 to move laterally through the servo motor and adjusting the height by sliding the lifting platform 4, the polishing grinding wheel 6 can be accurately sent into the inside of the valve body 11 to perform efficient polishing and polishing operation on the sealing surface of the valve body 11.

[0038] The utility model discloses a work principle is: first, the valve body 11 of processing is installed on the fixed seat 7, is fixed through the flange connecting hole of positioning bolt 81 and valve body 11 installation, then rotates clamping screw rod 9 to control sliding block 10 to move, then through two clamping plates 8 to valve body 11 is extruded fixed, valve body 11's inlet and outlet port correspond with through -hole 82 respectively to guarantee that valve body 11 internal air can flow, in this process, the clamping plate 8 of inside keeps fixed, therefore the both ends of transverse flow cylinder 13 can keep fixed through -hole 82 of two clamping plates 8 of inside, and the bottom of air pipe 12 is connected on the fan, can blow to transverse flow cylinder 13 inside through air pipe 12, and blow to one side through the control ball valve 14, and the wind of blowing is cooled and is blown into in the valve body 11 inside processing, and the flowing air can take away the high temperature and the chippings of valve body 11 inside because polishing, through servo motor can control the transverse position of mobile seat 3, and through lifting platform 4 can control the height of polishing grinding wheel 6, to make polishing grinding wheel 6 can be from up to down into valve body 11 inside, to polish the sealing surface.

[0039] Two stations can polish the work of one side, to carry out feeding and discharging, and simultaneously, to guarantee the air output of transverse flow cylinder 13, can make transverse flow cylinder 13 only air outlet of facing polishing through the control control ball valve 14, because the existence of spring 18 makes extrusion ball head 17 can enter into the limiting hole 151 inside, to limit the pivot 15, when adjusting, can rotate pivot 15 top knob with force, can make pivot 15 and extrusion ball head 17 form shearing, to make extrusion ball head 17 move outward, rotates 180 degrees, to control the air outlet of control ball valve 14 and face polishing side, then guarantee the air output, to carry out the cooling of valve body 11 processing.

[0040] The above only is the preferred implementation mode of the utility model, should point out, for ordinary skill for the person in the art, under the premise of not departing from the principle of the utility model, can also make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model. The structure, device and operating method not specifically described and explained in the utility model, are implemented according to the conventional means of the field, if no special description and limitation.

Claims

1. A grinding device for valve sealing surfaces, comprising a work table (1) and a valve body (11), characterized in that: The workbench (1) is provided with fixed seats (7) symmetrically, vertical clamping plates (8) are fixed on one side of the two fixed seats (7) close to each other, sliding grooves (71) are formed in the upper surfaces of the fixed seats (7) away from each other, clamping screws (9) are rotatably installed in the sliding grooves (71), the clamping screws (9) penetrate through the side surfaces of the fixed seats (7) and are provided with knobs at the end portions, sliding blocks (10) are slidably installed in the sliding grooves (71), the sliding blocks (10) are screwed on the clamping screws (9), the upper surfaces of the sliding blocks (10) are also provided with clamping plates (8), the two clamping plates (8) correspond to each other, valve bodies (11) are arranged between the two clamping plates (8), a wind pipe (12) is vertically fixed on the center of the upper surface of the workbench (1), the bottom of the wind pipe (12) is connected to a fan, a transverse flow dividing cylinder (13) is fixed to the top of the wind pipe (12), and the transverse flow dividing cylinder (13) is arranged between the two valve bodies (11).

2. An apparatus for lapping valve sealing surfaces as defined in claim 1 wherein: Uniform positioning pins (81) corresponding to the flange holes of the valve bodies (11) are arranged on the inner surfaces of the clamping plates (8), through holes (82) are formed in the center of the surfaces of the clamping plates (8), the through holes (82) correspond to the inlet and outlet flow channels of the valve bodies (11), and the two ends of the transverse flow dividing cylinder (13) correspond to the two through holes (82) respectively.

3. The valve seal surface grinding apparatus of claim 1, wherein: A control ball valve (14) is rotatably installed in the center of the transverse flow dividing cylinder (13), the air inlet end of the control ball valve (14) is arranged below and corresponds to the wind pipe (12), the air outlet of the control ball valve (14) is horizontally formed, a rotating shaft (15) is vertically arranged on the top of the control ball valve (14), the rotating shaft (15) penetrates through the upper surface of the transverse flow dividing cylinder (13), and a knob is arranged on the top of the rotating shaft (15).

4. An apparatus for lapping valve sealing surfaces as defined in claim 3 wherein: Positioning holes (151) are symmetrically formed in the surface of the rotating shaft (15), the positioning holes (151) are arranged in parallel with the air outlet of the control ball valve (14), and a fixed plate (131) is vertically arranged on one side of the upper surface of the transverse flow dividing cylinder (13).

5. An apparatus for lapping valve seal surfaces as defined in claim 4 wherein: A sliding rod (16) slidably penetrates through the surface of the fixed plate (131), an extrusion ball head (17) is arranged at one end of the sliding rod (16), the extrusion ball head (17) is matched with the inner size of the positioning hole (151), a spring (18) is arranged on the surface of the sliding rod (16), and the spring (18) is arranged between the extrusion ball head (17) and the fixed plate (131).

6. The valve seal surface grinding apparatus of claim 1, wherein: A threaded rod (2) is vertically and transversely rotatably installed on the upper surface of the workbench (1), one end of the threaded rod (2) is installed on the output end of a servo motor, a moving seat (3) is slidably installed on the rear side of the upper surface of the workbench (1), the moving seat (3) is screwed on the threaded rod (2), a lifting platform (4) is vertically and slidably installed on the front surface of the moving seat (3), and the lifting platform (4) extends forward.

7. An apparatus for lapping valve sealing surfaces as defined in claim 6 wherein: A driving motor (5) is fixed to the end of the lifting platform (4), the output end of the driving motor (5) is downwardly arranged, a polishing grinding wheel (6) is installed on the output end of the driving motor (5), and the polishing grinding wheel (6) corresponds to the valve sealing surface of the valve body (11).

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