Groove milling device for pressure reducing valve production

Abstract

The utility model provides a groove milling device for pressure reducing valve production, and belongs to the technical field of valve groove milling. A collecting groove and a sliding groove are formed in the base table, the lower end of the collecting groove is connected with a drainage groove in a penetrating mode, an adjusting motor is fixedly connected to the position, close to the sliding groove, of the rear side wall of the base table, the output end of the adjusting motor is fixedly connected with a lead screw, a hydraulic cylinder is slidably connected into the sliding groove, and a base of the hydraulic cylinder is in threaded connection with the lead screw. A transmission device is fixedly arranged above the output end of the hydraulic cylinder, a plurality of electric telescopic rods are symmetrically arranged at the upper end of the inner side wall of the collecting tank, and the output ends of the electric telescopic rods on different sides are fixedly connected with two clamping plates which are symmetrically arranged; the main spraying cavity, the side spraying cavity and the liquid storage cavity are integrated on the clamping plate, so that a milling cutter and a milling groove of the valve can be uniformly and timely cooled while the valve is clamped, the machining temperature of a workpiece during groove milling can be reduced, and cuttings on a valve element can be cleaned.

Description

Technical Field

[0001] The utility model relates to the field of valve groove milling, in particular to a groove milling device for producing pressure reducing valves. Background Art

[0002] A pressure reducing valve is a device used to control fluid pressure, also known as a pressure reducing valve, a pressure regulating valve, etc. It automatically adjusts the opening of the fluid channel to keep the pressure flowing through the valve within a set value range. The pressure reducing valve is mainly composed of a valve body, a valve core, a spring, and an adjusting device. In the pressure reducing valve, common valve core types include cylindrical valve cores, conical valve cores, etc. In order to adjust the channel opening of the fluid, it is usually chosen to mill grooves on the valve core to control the flow and pressure of the fluid. Through milling grooves of different shapes and sizes, the pressure reducing valve can achieve precise regulation and control of the fluid.

[0003] When using the existing pressure reducing valve milling groove device, in most cases, the milling cutter is cooled by directly connecting an external cooling pipeline, which often only provides cooling in specific areas of the tool, resulting in uneven cooling effect. This may cause part of the tool to overheat while other parts cannot be sufficiently cooled, thereby affecting the tool life and the processing quality of the workpiece.

[0004] How to invent a groove milling device for pressure reducing valve production to improve these problems has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a groove milling device for pressure reducing valve production, aiming to improve the problems mentioned in the above background.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a milling groove device for the production of a pressure reducing valve, comprising a base and a valve core, wherein a collecting groove and a slide groove are arranged on the base, the lower end of the collecting groove is connected with a drainage groove through, an adjusting motor is fixedly connected to the rear side wall of the base near the slide groove, the output end of the adjusting motor is fixedly connected to a lead screw, a hydraulic cylinder is slidably connected in the slide groove, the base of the hydraulic cylinder is threadedly connected to the lead screw, a transmission device is fixedly arranged above the output end of the hydraulic cylinder, a plurality of electric telescopic rods are symmetrically arranged on the upper end of the inner side wall of the collecting groove, the output ends of the electric telescopic rods on different sides are fixedly connected to two clamping plates which are symmetrically arranged with each other, positioning grooves and processing areas are intermittently distributed on the clamping plate, and a cooling and cleaning device is arranged in the clamping plate.

[0008] Preferably, the transmission device includes a transmission box fixedly connected above the output end of the hydraulic cylinder, a transmission motor fixedly connected to the lower side wall of the transmission box, two transmission guide wheels rotatably connected inside the transmission box, the two transmission guide wheels are connected by a synchronous belt transmission, one of the transmission guide wheels is fixedly connected to the output shaft of the transmission motor, and the lower end side wall of the other transmission guide wheel is fixedly connected to a mounting seat, and a milling cutter is installed and connected inside the mounting seat.

[0009] Preferably, the milling cutter is detachably arranged, and the length of the processing area is greater than the diameter of the milling cutter.

[0010] Preferably, the cooling and cleaning device includes a liquid storage chamber arranged inside the clamping plate and a water supply hose arranged on the rear side of the clamping plate and passing through the liquid storage chamber. A plurality of main spray chambers and side spray chambers are arranged on the inner side of the clamping plate, and the main spray chambers and the side spray chambers are both connected to the liquid storage chamber.

[0011] Preferably, the main spray chamber is located directly below the processing area, and the side spray chambers are located at both ends of the clamping plate. The main spray chamber and the side spray chamber are both provided with multiple nozzles. The cross-section of the main spray chamber is trapezoidal, and the cross-section of the side spray chamber is triangular. The nozzles are equidistantly distributed along the inclined wall edges of the main spray chamber and the side spray chamber. The multiple nozzles are all single-pass arrangements. The nozzles on the main spray chamber are inclined to both sides, and the nozzles on the side spray chamber are inclined inward. The end of the water hose is through-connected to the output end of the infusion pump.

[0012] Preferably, the collecting trough is arranged in an inverted trapezoidal shape, and the end of the drainage trough passes through the right end side wall of the base.

[0013] The beneficial effects of the utility model are:

[0014] Start the infusion pump, and the coolant will enter the liquid storage chamber through the water delivery hose. As the water pressure in the liquid storage chamber increases, the coolant will flow from the liquid storage chamber to the main spray chamber and the side spray chamber respectively. Since the nozzles are equidistantly distributed along the inclined wall edges of the main spray chamber and the side spray chamber, it is ensured that the nozzles can fully cover the valve core, thereby achieving the wrapping effect on the valve core and the milling cutter, avoiding the situation where the external cooling pipeline easily causes uneven cooling. When the coolant is sprayed from the main spray chamber, under the diversion effect of the nozzle, the coolant will spray from the nozzle and form a uniform rectangular water curtain on both sides to act on the middle milling area, thereby timely cooling and cleaning the valve core and the milling cutter on both sides of the main spray chamber, and at the same time, the chips at the milling groove can be flushed to the collection tank. When the coolant is sprayed from the side spray chamber, under the diversion effect of the nozzle, the coolant will form a uniform rectangular water curtain and act on the outermost milling area to ensure that the valve core can be fully cooled and cleaned;

[0015] By integrating the main spray chamber, side spray chamber and liquid storage chamber on the clamping plate, the milling area can be accurately cooled while the valve is clamped. When the milling cutter is milling grooves, the milling cutter and valve core can be cooled and flushed in a targeted manner, thereby improving the cooling efficiency of the workpiece. Compared with the existing method, the cooling effect is more uniform and sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a groove milling device for pressure reducing valve production provided by the embodiment of the utility model;

[0018] Figure 2 It is a right side cross-sectional structural schematic diagram of a groove milling device for pressure reducing valve production provided by the embodiment of the utility model;

[0019] Figure 3 It is a front cross-sectional structural schematic diagram of a groove milling device for pressure reducing valve production provided by an embodiment of the utility model;

[0020] Figure 4 This is an enlarged structural diagram of a groove milling device for pressure reducing valve production provided by the embodiment of the utility model at position A;

[0021] Figure 5 This is a schematic diagram of the structure of a milling device for clamping a valve core in the production of a pressure reducing valve provided by the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the distribution structure of the main spray chamber and the side spray chamber of a groove milling device for producing a pressure reducing valve provided by an embodiment of the utility model.

[0023] In the figure: 1. base; 101. collecting trough; 102. slide; 2. electric telescopic rod; 3. clamping plate; 301. positioning groove; 302. processing area; 4. hydraulic cylinder; 5. transmission box; 501. transmission motor; 502. milling cutter; 6. adjustment motor; 601. screw; 7. main spray chamber; 701. side spray chamber; 8. liquid storage chamber; 9. drainage trough; 10. water supply hose; 11. valve core. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] Reference Figure 1-Figure 3 A milling groove device for pressure reducing valve production includes a base 1 and a valve core 11. A collecting groove 101 and a slide groove 102 are provided on the base 1. The lower end of the collecting groove 101 is connected with a drainage groove 9. An adjusting motor 6 is fixedly connected to the rear side wall of the base 1 near the slide groove 102. The output end of the adjusting motor 6 is fixedly connected to a lead screw 601. A hydraulic cylinder 4 is slidably connected in the slide groove 102. The base of the hydraulic cylinder 4 is threadedly connected to the lead screw 601. A transmission device is fixedly arranged above the output end of the hydraulic cylinder 4. A plurality of electric telescopic rods 2 are symmetrically arranged on the upper end of the inner side wall of the collecting groove 101. The output ends of the electric telescopic rods 2 on different sides are fixedly connected to two mutually symmetrically arranged clamping plates 3. Positioning grooves 301 and processing areas 302 are intermittently distributed on the clamping plate 3. A cooling and cleaning device is arranged in the clamping plate 3.

[0027] It should be noted that the collecting trough 101 is an inverted trapezoidal body, and its inverted trapezoidal design is conducive to collecting and guiding the chips to the drainage trough 9. The end of the drainage trough 9 penetrates the right end side wall of the base 1, and the chips and coolant are discharged from the base 1 through the drainage trough 9.

[0028] Reference Figure 3-Figure 6 The transmission device includes a transmission box 5 fixedly connected above the output end of the hydraulic cylinder 4, a transmission motor 501 is fixedly connected to the lower side wall of the transmission box 5, and two transmission guide wheels are rotatably connected inside the transmission box 5. The two transmission guide wheels are connected through a synchronous belt transmission, one of the transmission guide wheels is fixedly connected to the output shaft of the transmission motor 501, and the lower end side wall of the other transmission guide wheel is fixedly connected to a mounting seat, and a milling cutter 502 is installed and connected inside the mounting seat. The transmission box 5, the transmission motor 501 and the transmission guide wheel work together to drive the milling cutter 502 to perform milling operations. The milling cutter 502 is detachably arranged, and the length of the processing area 302 is greater than the diameter of the milling cutter 502, which is convenient for milling groove operations inside the processing area 302;

[0029] Furthermore, the cooling and cleaning device includes a liquid storage chamber 8 disposed inside the clamping plate 3 and a water delivery hose 10 disposed on the rear side of the clamping plate 3 and penetrating the liquid storage chamber 8. A plurality of main spray chambers 7 and side spray chambers 701 are disposed on the inner side of the clamping plate 3. The main spray chambers 7 and the side spray chambers 701 are both connected to the liquid storage chamber 8.

[0030] It should be noted that: the main spray chamber 7 is located directly below the processing area 302, and the side spray chamber 701 is located at both ends of the clamping plate 3. A plurality of nozzles are provided on the main spray chamber 7 and the side spray chamber 701. The cross section of the main spray chamber 7 is set in a trapezoidal shape, and the cross section of the side spray chamber 701 is set in a triangular shape. The nozzles are equidistantly distributed along the oblique wall edges of the main spray chamber 7 and the side spray chamber 701 to ensure that the nozzles can fully cover the valve core 11. The plurality of nozzles are all single-pass settings to avoid the situation where chips enter. When the infusion pump is started, the coolant will enter the liquid storage chamber 8 through the water hose 10. As the water pressure in the liquid storage chamber 8 increases, the coolant will be distributed. The cooling liquid flows from the liquid storage chamber 8 to the main spray chamber 7 and the side spray chamber 701. Since the nozzle on the main spray chamber 7 is inclined to both sides, when the coolant is sprayed from the main spray chamber 7, the coolant will form a uniform rectangular water curtain under the diversion effect of the nozzle and act on the milling area, so that the valve core 11 and the milling cutter 502 on both sides can be cooled and cleaned in time, and the chips at the milling groove can be flushed to the collecting tank 101. The nozzle on the side spray chamber 701 is inclined inwardly, so as to clean the outermost valve core 11. Similarly, the end of the water supply hose 10 is connected to the output end of the infusion pump for replenishing the coolant.

[0031] The working principle of the milling groove device for the production of a pressure reducing valve is as follows: the base 1 serves as the supporting structure of the entire device, and the collecting groove 101 is used to collect the chips and coolant generated during the milling process, so that the working environment is kept clean. Its inverted trapezoidal design is conducive to the collection and guidance of chips to the drainage groove 9. The chips and coolant are discharged from the base 1 through the drainage groove 9, so that the working surface is kept clean, and the coolant can be recycled;

[0032] Before milling the groove, a shelf on which multiple valve cores 11 are pre-placed is extended into the interior of the base 1. A card slot corresponding to the clamping plate 3 is provided on the shelf. Subsequently, the clamping plate 3 is driven by the electric telescopic rod 2 to fix multiple valve cores 11 at the same time, ensuring their stability during the milling process. The positioning groove 301 is to adapt to different sizes and models of the valve core 11 and maintain its correct position; when milling the groove, the adjustment motor 6 can be controlled to rotate. At this time, the hydraulic cylinder 4 will move along the slide groove 102 to accurately control the lateral positioning of the milling cutter 502, so as to facilitate milling of the specific part of the valve core 11. After the hydraulic cylinder 4 is started, the vertical movement of the hydraulic cylinder 4 can control the up and down position of the milling cutter 502 to achieve precise processing of the valve core 11, and gradually move the milling cutter 502 down to between the processing areas 302 of the two clamping plates 3. As the milling cutter 502 continuously rotates and moves down, the milling of the valve core 11 can be achieved.

[0033] It should be noted that: when the required milling groove is smaller, a thinner milling cutter 502 can be replaced to perform milling groove processing on one side of a single valve core 11; when the required milling groove is larger, a thicker milling cutter 502 can be replaced to perform milling groove processing on both sides of adjacent valve cores 11 at the same time (at this time, the milling cutter 502 is located in the center of the processing area 302 to ensure that the depth of the milling grooves of the two valve cores 11 is consistent);

[0034] Since the cross section of the main spray chamber 7 is set in a trapezoidal shape and the cross section of the side spray chamber 701 is set in a triangular shape, the nozzles are equidistantly distributed along the inclined wall edges of the main spray chamber 7 and the side spray chamber 701, ensuring that the nozzles can fully cover the valve core 11, thereby achieving the wrapping effect on the valve core 11 and the milling cutter 502, avoiding the situation where the external cooling pipeline easily causes uneven cooling, and multiple nozzles are all single-pass settings to avoid the situation where chips enter. When the infusion pump is started, the coolant will enter the liquid storage chamber 8 through the water hose 10. As the water pressure in the liquid storage chamber 8 increases, the coolant will flow from the liquid storage chamber 8 to the main spray chamber 7 and the side spray chamber 701 respectively. Since the main spray The nozzles on the cavity 7 are arranged to be inclined toward both sides, and the nozzles on the side spray cavity 701 are arranged to be inclined toward the inside. When the coolant is sprayed out from the main spray cavity 7, under the diversion effect of the nozzle, the coolant will spray out from the nozzle and form a uniform rectangular water curtain on both sides to act on the middle milling area, thereby timely cooling and cleaning the valve core 11 and the milling cutter 502 on both sides of the main spray cavity 7, and at the same time, the chips at the milling groove can be flushed to the collection tank 101. When the coolant is sprayed out from the side spray cavity 7, under the diversion effect of the nozzle, the coolant will form a uniform rectangular water curtain and act on the outermost milling area to ensure that the valve core 11 can be fully cooled and cleaned;

[0035] Under the action of the nozzles of the main spray chamber 7 inclined on both sides and the nozzles of the side spray chamber 701 inclined inward, the coolant sprayed from the main spray chamber 7 or the side spray chamber 701 can timely cool the milling cutter 502 and the valve milling groove during the milling process of the milling cutter 502, which can not only reduce the processing temperature of the workpiece during milling, but also clean the chips on the valve core 11. The accuracy of the milling groove not only depends on the stable operation of the milling cutter 502 and the transmission device, but also depends on the accurate docking of the positioning groove 301 on the clamping plate 3 and the appropriate setting of the processing area 302, which ensures the position fixation of the valve core 11 during processing and the accuracy of the milling path.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A groove milling device for producing a pressure reducing valve, comprising a base (1) and a valve core (11), characterized in that: The base (1) is provided with a collecting trough (101) and a slide trough (102), the lower end of the collecting trough (101) is connected with a drainage trough (9), an adjusting motor (6) is fixedly connected to the rear side wall of the base (1) near the slide trough (102), the output end of the adjusting motor (6) is fixedly connected with a lead screw (601), a hydraulic cylinder (4) is slidably connected in the slide trough (102), the base of the hydraulic cylinder (4) is threadedly connected to the lead screw (601), a transmission device is fixedly arranged above the output end of the hydraulic cylinder (4), a plurality of electric telescopic rods (2) are symmetrically arranged at the upper end of the inner side wall of the collecting trough (101), the output ends of the electric telescopic rods (2) on different sides are fixedly connected with two mutually symmetrically arranged clamping plates (3), positioning grooves (301) and processing areas (302) are intermittently distributed on the clamping plate (3), and a cooling and cleaning device is arranged in the clamping plate (3).

2. A groove milling device for pressure reducing valve production according to claim 1, characterized in that: The transmission device comprises a transmission box (5) fixedly connected above the output end of the hydraulic cylinder (4), a transmission motor (501) fixedly connected to the lower side wall of the transmission box (5), two transmission guide wheels rotatably connected inside the transmission box (5), the two transmission guide wheels being connected via a synchronous belt transmission, one of the transmission guide wheels being fixedly connected to the output shaft of the transmission motor (501), and a mounting seat fixedly connected to the lower side wall of the other transmission guide wheel, wherein a milling cutter (502) is mounted and connected inside the mounting seat.

3. A groove milling device for pressure reducing valve production according to claim 2, characterized in that: The milling cutter (502) is detachably arranged, and the length of the processing area (302) is greater than the diameter of the milling cutter (502).

4. A groove milling device for pressure reducing valve production according to claim 1, characterized in that: The cooling and cleaning device comprises a liquid storage chamber (8) arranged inside the clamping plate (3) and a water supply hose (10) arranged on the rear side of the clamping plate (3) and passing through the liquid storage chamber (8); a plurality of main spray chambers (7) and side spray chambers (701) are arranged on the inner side of the clamping plate (3); and the main spray chambers (7) and the side spray chambers (701) are both connected to the liquid storage chamber (8).

5. A groove milling device for producing a pressure reducing valve according to claim 4, characterized in that: The main spray chamber (7) is located directly below the processing area (302), and the side spray chamber (701) is located at both ends of the clamping plate (3). The main spray chamber (7) and the side spray chamber (701) are both provided with a plurality of nozzles. The cross section of the main spray chamber (7) is arranged in a trapezoidal shape, and the cross section of the side spray chamber (701) is arranged in a triangular shape. The nozzles are evenly distributed along the inclined wall edges of the main spray chamber (7) and the side spray chamber (701). The plurality of nozzles are all arranged in a single-pass manner. The nozzles on the main spray chamber (7) are arranged in an inclined manner toward both sides, and the nozzles on the side spray chamber (701) are arranged in an inclined manner toward the inside. The end of the water delivery hose (10) is connected to the output end of the infusion pump.

6. A groove milling device for producing a pressure reducing valve according to claim 1, characterized in that: The collecting trough (101) is arranged in an inverted trapezoidal shape, and the end of the drainage trough (9) passes through the right end side wall of the base (1).

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