Valve housing positioning and machining device

Abstract

The application belongs to the field of valve processing, and particularly relates to a valve shell positioning and processing device, which comprises a base, a moving frame arranged on the base, a drilling machine arranged on the moving frame, a positioning table in the shape of a disc arranged on the upper side of the base, a three-jaw chuck rotatably arranged on the upper side of the middle part of the positioning table through a rotating shaft, a positioning and supporting module for supporting and positioning the drilling position of valve shells of different models arranged on the positioning table, and a locking module for limiting the rotation of the three-jaw chuck arranged between the positioning table and the base. The positioning and supporting module comprises a connecting frame which can slide along the positioning table in the radial direction, an arc-shaped table plate arranged on the connecting frame, two groups of connecting assemblies arranged on the arc-shaped table plate, two groups of telescopic tables arranged on the two groups of connecting assemblies, and positioning assemblies and guide ball sets respectively arranged on the two telescopic tables. The application can realize the accurate and rapid positioning of the flange hole of the valve shell, effectively eliminate the manual visual error, and ensure that the hole distribution is uniform and meets the design accuracy requirement.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of valve processing, and particularly relates to a valve housing positioning and processing device. BACKGROUND

[0002] As a core component of fluid control equipment, the machining precision of the valve housing directly affects the sealing performance and service life of the valve. Currently, drilling is one of the key processes for manufacturing valve housings, and especially for flange connecting holes and valve rod guide holes, the hole position distribution and size precision need to meet the design requirements.

[0003] However, in the actual production process, due to the limitation of processing equipment and process level, the following technical problems still exist: 1) Small and medium-sized processing workshops generally use semi-automatic drilling machines. Such equipment has low positioning accuracy and lacks intelligent control modules. For ordinary valve housings with low precision requirements, operators usually rely on visual positioning based on experience, which is prone to human error, resulting in hole position deviation or uneven spacing, and poor consistency of finished products.

[0004] 2) For high-precision valve housings (such as high-pressure valves and regulating valves), although high-precision numerical control drilling machines on the market can achieve automatic positioning, their purchase and maintenance costs are high, and they have high technical requirements for operators, making it difficult for small and medium-sized workshops to popularize. For small and medium-sized workshops, operators need to use tools such as calipers and height gauges to measure and calibrate each preset hole position, and then manually adjust the drilling machine coordinates. Although this method can partially improve the positioning accuracy, repeated measurement and adjustment significantly prolongs the processing time of each piece, resulting in low drilling efficiency of the workshop as a whole, which is difficult to meet the needs of batch production. SUMMARY

[0005] To solve the above problems, the present application provides a valve housing positioning and processing device to solve the problems mentioned in the background.

[0006] In order to achieve the above object, the embodiment of the present application provides the following technical scheme: the present application provides a valve shell positioning machining device, which comprises a base, a movable frame is arranged on the base, a drilling machine is arranged on the movable frame, a positioning table in the shape of a disc is arranged on the upper side of the base, a three-jaw chuck is rotatably arranged on the upper side of the middle part of the positioning table through a rotating shaft, a positioning support module for supporting and positioning the drilling position of different models of valve shells is further arranged on the positioning table, and a locking module for limiting the rotation of the three-jaw chuck is jointly arranged between the positioning table and the base. The positioning support module comprises a connecting frame which can slide radially along the positioning table, an arc-shaped table plate is arranged on the connecting frame, two groups of connecting assemblies are arranged on the arc-shaped table plate, an extension table is arranged on each of the two groups of connecting assemblies, a positioning assembly and a guide ball set are respectively arranged on the two extension tables, an arc-shaped guide rail and an arc-shaped angle scale with the midpoint of the three-jaw chuck as the center are fixedly arranged on the arc-shaped table plate, a sliding assembly is arranged on the arc-shaped guide rail, and the sliding assembly is connected with the corresponding connecting assembly. The locking module comprises a locking assembly arranged on the upper side of the positioning table, a horizontal driving frame is connected to the locking assembly, a transmission assembly matched with the horizontal driving frame is arranged on the base, and the movable frame controls the drilling machine to move downward and cooperate with the transmission assembly to drive the horizontal driving frame to move, so that the rotation of the three-jaw chuck is locked by the locking assembly.

[0007] According to an advantageous embodiment, the edge of the positioning table is provided with a notch groove in the shape of a sector, a guide rod one is fixedly arranged on the arc-shaped side wall of the notch groove, the connecting frame comprises a sector-shaped sliding seat which is slidingly inserted with the guide rod one, the sector-shaped sliding seat is slidingly connected with the notch groove, an adjusting support rod is arranged on the upper side of the sector-shaped sliding seat, two guide extension rods which are symmetrically arranged with the adjusting support rod as the center are fixedly arranged on the upper side of the sector-shaped sliding seat, and the ends of the guide extension rods away from the sector-shaped sliding seat are fixedly connected with the lower side of the arc-shaped table plate.

[0008] According to an advantageous embodiment, the adjusting support rod comprises a support sleeve fixedly arranged on the upper side of the sector-shaped sliding seat, a support column one is threadedly connected to the upper end of the support sleeve, and the upper end of the support column one is rotatably connected with the lower side of the arc-shaped table plate; a locking pin is slidingly inserted with an ear seat one on the outer arc surface of the sector-shaped sliding seat, and the lower side of the locking pin is movably inserted with the inner side of the lower side of the notch groove.

[0009] According to an advantageous embodiment, the connecting assembly comprises a U-shaped connecting plate one, an adjusting screw is rotatably arranged on the connecting plate one, a connecting plate two is threadedly connected to the adjusting screw, the connecting plate two is slidably connected to the connecting plate one, and the side of the connecting plate two away from the connecting plate one is fixedly connected to the corresponding telescopic table; the connecting plate one in one connecting assembly is fixedly connected to the upper side of the arc-shaped table plate, and the connecting plate one in the other connecting assembly is connected to the sliding assembly; the sliding assembly comprises a sliding sleeve slidably arranged on the arc-shaped guide rail, the sliding sleeve is fixedly connected to the corresponding connecting plate one, a locking bolt is threadedly arranged on the upper side of the sliding sleeve, and the end of the threaded section of the locking bolt movably abuts against the upper side of the arc-shaped guide rail.

[0010] According to an advantageous embodiment, the telescopic table comprises a fixed sleeve fixedly connected to the connecting plate two, and a movable sleeve is threadedly connected to the upper end of the fixed sleeve; the guide ball set comprises a plurality of balls, the balls are rotatably connected to the upper end surface of the corresponding movable sleeve and are uniformly distributed along the circumferential direction of the movable sleeve.

[0011] According to an advantageous embodiment, the positioning assembly comprises a reset spring one fixedly arranged in the corresponding movable sleeve, a sliding block is fixedly arranged at the upper end of the reset spring one, the sliding block is slidably connected to the movable sleeve, and a positioning sleeve in the shape of a circular truncated cone is fixedly arranged on the upper side of the sliding block.

[0012] According to an advantageous embodiment, the locking assembly comprises a guide sleeve fixedly arranged on the upper side of the positioning table and symmetrical to the left and right, a pushing column in the shape of a rectangle is slidably inserted into the guide sleeve, a guide hole in the shape of a rectangle is formed in the upper side of the guide sleeve, a sliding groove is formed in any two opposite sides of the guide hole, a limiting block is slidably arranged in the guide hole, a reset spring two is fixedly arranged on the side of the limiting block corresponding to the sliding groove through an ear seat two, the lower end of the reset spring two is fixedly connected to the inner wall on the lower side of the sliding groove, the side of the pushing column close to the limiting block is arranged as an inclined surface, a guide wheel one is rotatably arranged on the lower side of the limiting block, the guide wheel one movably abuts against the inclined surface, the other end of the pushing column is connected to the horizontal drive frame, an arc-shaped locking plate matched with the rotating shaft is slidably arranged on the upper side of the positioning table and close to the rear side, and the arc-shaped locking plate and the two pushing columns are connected to the horizontal drive frame.

[0013] According to an advantageous embodiment, the horizontal drive frame comprises a main sliding plate slidingly arranged on the upper side of the positioning table and close to the rear side, the left and right sides of the main sliding plate are fixedly provided with support plates, the support plates are fixedly connected with the corresponding push columns, the front end of the main sliding plate is fixedly connected with the arc-shaped locking plate, the rear end of the main sliding plate is rotatably provided with a guide wheel two, and the lower side of the main sliding plate is fixedly provided with a support column two close to the rear end, the lower end of the support column two is rotatably provided with a guide wheel three rollingly connected with the upper side of the base, a guide rod two is slidingly inserted into the support column two, and the front side of the support column two is fixedly provided with a reset spring three sleeved on the surface of the guide rod two, and the front end of the reset spring three is fixedly connected with the surface of the guide rod two.

[0014] According to an advantageous embodiment, the transmission assembly comprises two U-shaped guide seats fixedly arranged on the upper side of the base and symmetrical left and right, a drive seat sliding in the vertical direction is slidingly arranged between the two U-shaped guide seats, a guide block is fixedly arranged on the side close to the guide wheel two of the drive seat, the part close to the lower end of the guide block is arranged as an arc surface structure and rollingly connected with the guide wheel two, a guide rod three is slidingly connected with the left and right sides of the drive seat through the ear seat three, the lower end of the guide rod three is fixedly connected with the upper side of the base, a reset spring four is sleeved on the surface of the guide rod, and the upper and lower ends of the reset spring four are fixedly connected with the corresponding ear seat three and the upper side of the base respectively, a transmission rod one is fixedly arranged on the upper side of the drive seat, and a transmission rod two is threadedly connected with the upper end of the transmission rod one.

[0015] According to an advantageous embodiment, the moving frame comprises a stand fixedly connected with the upper side of the base, a truss is slidingly arranged on the stand, the drilling machine is slidingly arranged on the truss, the upper side of the stand is fixedly provided with an electric telescopic rod through a fixed plate, the telescopic end of the electric telescopic rod is movably penetrated through the fixed plate and fixedly connected with the upper side of the truss, and the upper end of the transmission rod two movably abuts against the lower side of the truss.

[0016] Compared with the prior art, the valve shell positioning and machining device provided by the embodiment of the present application has the following beneficial effects: 1. In the present application, the valve shell inner wall is fixed by the three-jaw chuck, and the linkage adjustment of the arc-shaped guide rail, the angle scale and the positioning assembly is combined to realize accurate positioning of the valve shell flange hole, effectively eliminate manual visual error, and ensure that the hole distribution is uniform and meets the design accuracy requirement. At the same time, the positioning assembly adopts a radial telescopic design of a limiting plate, which can adapt to different hole diameters, and after being inserted into the drilled hole, automatic alignment is realized, significantly improving the positional consistency of multi-hole machining.

[0017] 2. In the present application, the same batch of valve shells only need to adjust the positioning support module for the first time, and subsequent hole positions can be quickly positioned through the rotation of the three-jaw chuck and the plugging of the positioning sleeve, without the need for repeated measurement, and the single-piece machining efficiency is significantly improved.

[0018] 3、In the application, the edge of the dynamic support flange of the guide ball group supports the flange drilling of the valve shell, reduces the risk of deformation, and at the same time cooperates with the automatic triggering of the locking module (the three-jaw chuck is linked and locked when the drilling machine moves down), simplifies the operation process, and reduces the dependence on skilled workers.

[0019] 4、Adopting a semi-automatic structure (such as manually adjusting the drilling machine + electric locking module), while ensuring accuracy, it avoids high-cost numerical control equipment investment, and is suitable for small and medium-sized workshop application. At the same time, it can adapt to different sizes of valve shells, improving the universality of valve shell positioning processing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an external perspective view of the application.

[0021] Figure 2 It is a perspective view of the relative position of the positioning support module and the locking module in the application.

[0022] Figure 3 It is a top view planar structure diagram of the relative position of the positioning support module and the locking module in the application.

[0023] Figure 4 It is an external perspective view of the telescopic table with a guide ball group in the application.

[0024] Figure 5 It is an external perspective view of the telescopic table with a positioning assembly in the application.

[0025] Figure 6 It is a front view of the telescopic table with a positioning assembly in the application.

[0026] Figure 7 It is an external perspective view of the locking module in the application.

[0027] Figure 8 It is a front view of the telescopic table with a positioning assembly in the application.

[0028] The figure shows the following reference signs: 1, base; 2, moving frame; 21, stand; 22, truss; 23, electric telescopic rod; 3, drilling machine; 4, positioning table; 5, rotating shaft; 6, three-jaw chuck; 7, positioning support module; 71, connecting frame; 711, fan-shaped sliding seat; 712, adjusting support rod; 713, guiding telescopic rod; 714, locking pin; 72, arc-shaped table plate; 73, connecting assembly; 731, connecting plate one; 732, adjusting screw; 733, connecting plate two; 74, telescopic table; 741, fixed sleeve; 742, movable sleeve; 75, positioning assembly; 751, reset spring one; 752, sliding block; 753, positioning sleeve; 76, guiding ball group; 77, arc-shaped guide rail; 78, angle scale; 79, sliding assembly; 791, sliding sleeve; 792, locking bolt; 8, locking module; 81, locking assembly; 811, guiding sleeve; 812, pushing column; 813, limiting block; 814, reset spring two; 815, guiding wheel one; 816, arc-shaped locking plate; 82, horizontal driving frame; 821, main sliding plate; 822, branch plate; 823, guiding wheel two; 824, supporting column two; 825, guiding wheel three; 826, guiding rod two; 827, reset spring three; 83, transmission assembly; 831, U-shaped guiding seat; 832, driving seat; 833, guiding block; 834, guiding rod three; 835, transmission rod one; 836, transmission rod two; 837, reset spring four. DETAILED DESCRIPTION

[0029] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 8 The present application is further described in detail.

[0030] Please refer to the accompanying drawings Figure 1 and Figure 3The utility model provides a valve housing positioning processing device, including base 1, be provided with moving frame 2 on base 1, moving frame 2 includes the vertical column 21 fixed connection with base 1 upside, vertical column 21 is provided with truss 22 slidingly, drilling machine 3 is slidingly arranged on truss 22, the upper side of vertical column 21 is fixedly provided with electric telescopic handle 23 through fixed plate, and the telescopic end of electric telescopic handle 23 is movably penetrated fixed plate and is fixedly connected with the upper side of truss 22. Drilling machine 3 is arranged on moving frame 2, the positioning table 4 in the shape of disc is arranged on the upside of base 1, the three jaw chuck 6 is rotatably arranged on the upside middle part of positioning table 4 through the pivot 5, the upside of every jaw of three jaw chuck 6 is fixedly provided with the abutting block, the positioning support module 7 for supporting and positioning the drilling position of different models of valve shell is further arranged on the positioning table 4, and the locking module 8 for limiting the rotation of three jaw chuck 6 is arranged between positioning table 4 and base 1. Valve shell is installed on three jaw chuck 6, then three jaw chuck 6 drives jaw reverse movement, so that the abutting block on every jaw is abutted with the inner wall of valve shell from different directions, and valve shell is fixed, and drilling machine 3 can slide along truss 22, and the specific sliding mode can be electric or manual, and in the scheme, drilling machine 3 is manually slid and adjusted, and drilling machine 3 is locked on truss 22 through external locking device. After adjusting drilling machine 3 to the specified position, three jaw chuck 6 is driven to move down along with the flange edge of valve shell and is drilled and processed.

[0031] Referring to Figure 2 , Figure 5 The positioning support module 7 includes a connecting frame 71 that can slide radially along the positioning table 4, the connecting frame 71 is provided with an arc-shaped table plate 72, the arc-shaped table plate 72 is provided with two groups of connecting assemblies 73, the two groups of connecting assemblies 73 are provided with telescopic tables 74, the two telescopic tables 74 are respectively provided with positioning assemblies 75 and guide ball groups 76, the arc-shaped table plate 72 is fixedly provided with an arc-shaped guide rail 77 with the midpoint of the three jaw chuck 6 as the center and an arc-shaped angle scale 78, the arc-shaped guide rail 77 is provided with a sliding assembly 79, and the sliding assembly 79 is connected with the corresponding connecting assembly 73.

[0032] Referring to Figure 2 , Figure 3 , Figure 4,In order to adapt to different height valve shell, the edge of the positioning table 4 is provided with a notch slot in the form of a sector, the arc side wall of the notch slot is fixedly provided with a guide rod one (not shown in the figure), the connecting frame 71 includes a sector-shaped sliding seat 711 which is slidingly inserted with the guide rod one, the sector-shaped sliding seat 711 is slidingly connected with the notch slot, the upper side of the sector-shaped sliding seat 711 is provided with an adjusting support rod 712, and the upper side of the sector-shaped sliding seat 711 is fixedly provided with two guide telescopic rods 713 which are symmetrically centered on the adjusting support rod 712, and the end of the guide telescopic rod 713 away from the sector-shaped sliding seat 711 is fixedly connected with the lower side of the arc-shaped table plate 72. By adjusting the support rod 712 and the guide telescopic rod 713, the height of the arc-shaped table plate 72 can be adjusted, so that the height of the two telescopic tables 74 is adjusted, so that the guide ball group 76 can support the upper flange edge of the valve shell, and the height of the positioning assembly 75 is adjusted. At the same time, the sector-shaped sliding seat 711 can slide outward away from the positioning table 4 after processing, and the two telescopic tables 74 are slid out from the upper and lower flanges of the valve shell, which facilitates the discharging of the valve shell.

[0033] Referring to Figure 2 , the adjusting support rod 712 includes a support sleeve fixedly arranged on the upper side of the sector-shaped sliding seat 711, the upper end of the support sleeve is threadedly connected with a support column one, and the upper end of the support column one is rotatably connected with the lower side of the arc-shaped table plate 72; the outer arc surface of the sector-shaped sliding seat 711 is slidingly inserted with a locking pin 714 through an ear seat one, and the lower side of the locking pin 714 is movably inserted with the lower side of the notch slot. By rotating the support column one and cooperating with the two guide telescopic rods 713, the arc-shaped table plate 72 is moved up and down to adjust the height. Pulling the locking pin 714 upward, the locking of the sector-shaped sliding seat 711 is released, so that it can slide radially along the positioning table 4.

[0034] Referring to Figure 2 — Figure 5In order to adapt to different diameter sizes of the valve shell, the connecting assembly 73 comprises a U-shaped connecting plate one 731, the connecting plate one 731 is provided with an adjusting screw 732 rotatingly, the adjusting screw 732 is threadedly connected with a connecting plate two 733, the connecting plate two 733 is slidingly connected with the connecting plate one 731, and the side of the connecting plate two 733 away from the connecting plate one 731 is fixedly connected with a corresponding telescopic table 74; the connecting plate one 731 in one of the connecting assemblies 73 is fixedly connected with the upper side of the arc-shaped table plate 72, and the connecting plate one 731 in the other of the connecting assemblies 73 is connected with a sliding assembly 79; the sliding assembly 79 comprises a sliding sleeve 791 slidingly arranged on an arc-shaped guide rail 77, the sliding sleeve 791 is fixedly connected with a corresponding connecting plate one 731, the upper side of the sliding sleeve 791 is threadedly provided with a locking bolt 792, and the threaded segment end of the locking bolt 792 is movably abutted against the upper side of the arc-shaped guide rail 77. By rotating the adjusting screw 732 to drive the connecting plate two 733 to slide along the connecting plate one 731, the telescopic table 74 can be synchronously moved along the radial direction of the positioning table 4 for adjustment, so that the guide ball set 76 and the positioning assembly 75 are adjusted according to the diameter of the valve shell after the valve shell is installed on the three-jaw chuck 6. By locking the sliding sleeve 791 through the locking bolt 792, when needed, the sliding sleeve 791 is controlled to move along the arc-shaped guide rail 77, the position of the positioning assembly 75 is adjusted, the positioning table 4 is taken as the center, the included angle of the two telescopic tables 74 relative to the center position of the valve shell is adjusted, and then the included angle of the positioning assembly 75 relative to the drilling position is adjusted.

[0035] Referring to Figure 2 — Figure 6 In order to further adapt and adjust the height of the guide ball set 76 and the positioning assembly 75 according to the height of the valve shell, the telescopic table 74 comprises a fixed sleeve 741 fixedly connected with the connecting plate two 733, and a movable sleeve 742 slidingly inserted into the upper end of the fixed sleeve 741; the guide ball set 76 comprises a plurality of balls, the plurality of balls are rotatably connected with the upper end face of a corresponding movable sleeve 742 and are uniformly distributed along the circumferential direction of the movable sleeve 742. The fixed sleeve 741 is moved to between the upper flange of the valve shell and the lower flange of the valve shell through the connecting assembly 73, and then the lower end of the fixed sleeve 741 is abutted against the upper side of the lower flange of the valve shell through the connecting frame 71. The fixed sleeve 741 is rotatably provided with a ball (not shown in the figure), so as to reduce the friction. Then the movable sleeve 742 is rotated, so as to drive the movable sleeve 742 to rotate relative to the fixed sleeve 741 to adjust the length between the movable sleeve 742 and the fixed sleeve 741, thereby adjusting the height of the movable sleeve 742, so that the guide ball set 76 is moved up to abut against the lower side of the upper flange of the valve shell. At this time, the abutment position of the guide ball set 76 relative to the lower side of the upper flange of the valve shell is the drilling position, and the height of the positioning assembly 75 can also be adjusted before machining, which is convenient for subsequent positioning of the drilling position of the valve shell.

[0036] Referring to Figure 5 and Figure 6The positioning assembly 75 includes a reset spring 751 fixedly arranged inside the corresponding movable sleeve 742, the upper end of the reset spring 751 is fixedly provided with a sliding block 752, the sliding block 752 is in sliding connection with the movable sleeve 742, and the upper side of the sliding block 752 is fixedly provided with a circular truncated cone-shaped positioning sleeve 753. The positioning sleeve 753 can be inserted into the hole drilled in the upper flange of the valve shell for self-adaptive positioning of the upper flange of the valve shell. By pressing the positioning sleeve 753 downward, the positioning sleeve 753 and the sliding block 752 are moved towards the inside of the movable sleeve 742, so that the positioning sleeve 753 can enter the inside of the movable sleeve 742.

[0037] In specific work, the device is pre-adjusted according to the size of the batch of valve shells: the valve shell is fixedly arranged on the three-jaw chuck 6, then the horizontal positions of the two telescopic tables 74 are adjusted through the connecting assembly 73, so that the two telescopic tables 74 can be between the upper flange of the valve shell and the lower flange of the valve shell, and then the height of the telescopic table 74 as a whole is adjusted through the connecting frame 71, so that the lower end of the fixed sleeve 741 in the telescopic table 74 can be in movable abutment with the lower flange of the valve shell.

[0038] The position of the telescopic table 74 with the guide ball set 76 is adjusted as follows: the position of the telescopic table 74 (with the guide ball set 76 at the upper end) is adjusted through the corresponding connecting assembly 73, so that the movable sleeve 742 is directly below the drilling machine 3, then the movable sleeve 742 is rotated, so that the guide ball set 76 at the upper end of the movable sleeve 742 can be in movable abutment with the lower side of the position of the upper flange of the valve shell for support, then the drilling machine 3 is lowered by the electric telescopic rod 23, before the drilling machine 3 drills the upper flange of the valve shell, the truss 22 cooperates with the locking module 8 to lock the three-jaw chuck 6 to avoid rotation, then the drilling machine 3 continuously moves downward to drill the first flange mounting hole of the upper flange of the valve shell, at this time, the telescopic table 74 at this position is supported between the upper flange of the valve shell and the lower flange of the valve shell to support the drilling position of the upper flange of the valve shell, which can avoid deformation of the upper flange of the valve shell caused by drilling pressure, and the first flange mounting hole is drilled.

[0039] After the first flange mounting hole on the valve shell upper flange is drilled, the position of the positioning assembly 75 is determined by the first flange mounting hole: the positioning assembly 75 is moved along the outer wall of the valve shell by moving the sliding sleeve 791 along the arc-shaped guide rail 77, the included angle between the two telescopic tables 74 relative to the center of the valve shell is adjusted, which is a known angle and is the included angle between the adjacent two flange mounting holes on the valve shell upper flange, then the position of the telescopic table 74 (with the positioning assembly 75) is adjusted by the corresponding connecting assembly 73, so that the telescopic table 74 can move along the radial direction of the positioning table 4, and the three-jaw chuck 6 is rotated (at this time, the locking module 8 has released the positioning of the three-jaw chuck 6), so that the first flange mounting hole moves towards the position of the positioning assembly 75, and the position of the positioning assembly 75 is gradually fine-tuned, so that the positioning sleeve 753 can finally be inserted into the first flange mounting hole. At this time, the position of the drill below the valve shell upper flange is the position of the second flange mounting hole. The position of the relevant components is adjusted according to the size of the valve shell. It is particularly pointed out that the above operation needs to be adjusted only once for the valve shells of the same batch.

[0040] When drilling: the drill 3 moves down to drill the second flange mounting hole on the valve shell upper flange, and after drilling is completed, the drill 3 moves up, and the worker only needs to press the positioning sleeve 753 downward, so that the positioning sleeve 753 is withdrawn from the first flange mounting hole, and then the three-jaw chuck 6 is rotated to rotate the valve shell, so that the second flange mounting hole is rotated to the position of the positioning sleeve 753, and the positioning sleeve 753 is reset under the action of the reset spring 751 and inserted into the second flange mounting hole. At this time, the position of the third flange mounting hole on the valve shell upper flange can be quickly determined, and then drilling is performed again. In this way, when drilling the valve shells of the same batch subsequently, the second flange mounting hole and the subsequent flange mounting holes can be quickly and accurately positioned without the need for additional frequent measurement and the use of external measuring tools.

[0041] Referring to Figure 2 and Figure 3 , the locking module 8 includes a locking assembly 81 arranged on the upper side of the positioning table 4, the locking assembly 81 is connected with a horizontal drive frame 82, the base 1 is provided with a transmission assembly 83 matched with the horizontal drive frame 82, and the electric telescopic rod 23 controls the movement of the horizontal drive frame 82 driven by the transmission assembly 83 when the drill 3 moves down, so as to control the locking of the rotation of the three-jaw chuck 6 by the locking assembly 81. The transmission assembly 83 is actuated by the movement of the horizontal drive frame 82 through the action of the transmission assembly 83 driven by the movement of the truss 22, so as to lock the three-jaw chuck 6 by the locking assembly 81.

[0042] Referring to Figure 2 , Figure 7 and Figure 8In order to improve the stability of the locking of the three-jaw chuck 6, the locking assembly 81 comprises guide sleeves 811 fixedly arranged on the upper side of the positioning table 4 and symmetrical left and right, a rectangular push column 812 is slidingly inserted into the guide sleeve 811, a rectangular guide hole is formed in the upper side of the guide sleeve 811, and a sliding groove is formed on any two opposite sides of the guide hole, a limiting block 813 is slidingly arranged in the guide hole, a reset spring two 814 is fixedly arranged on the side of the limiting block 813 corresponding to the sliding groove through an ear seat two, the lower end of the reset spring two 814 is fixedly connected with the inner wall of the lower side of the sliding groove, the side of the push column 812 close to the limiting block 813 is provided as an inclined surface, a guide wheel one 815 is rotatably arranged on the lower side of the limiting block 813, the guide wheel one 815 is in movable abutment with the inclined surface, the other end of the push column 812 is connected with the horizontal drive frame 82, and an arc-shaped locking plate 816 matched with the rotating shaft 5 is slidingly arranged on the upper side of the positioning table 4 close to the rear side, and the arc-shaped locking plate 816 and the two push columns 812 are connected with the horizontal drive frame 82. When the horizontal drive frame 82 moves, the push column 812 can move forward, so that the inclined surface at the front end of the push column 812 gradually moves forward and forces the guide wheel one 815 to roll along the inclined surface while driving the limiting block 813 to move upward, and the lower side of the three-jaw chuck 6 is in abutment, and at the same time, the horizontal moving frame 2 can also push the arc-shaped locking plate 816 to abut against the rotating shaft 5 on the lower side of the three-jaw chuck 6, so as to further limit the rotating shaft 5 from rotating.

[0043] Referring to Figure 8 The horizontal drive frame 82 comprises a main sliding plate 821 slidingly arranged on the upper side of the positioning table 4 close to the rear side, a supporting plate 822 is fixedly arranged on the left and right sides of the main sliding plate 821, the supporting plate 822 is fixedly connected with the corresponding push column 812, the front end of the main sliding plate 821 is fixedly connected with the arc-shaped locking plate 816, a guide wheel two 823 is rotatably arranged at the rear end of the main sliding plate 821, a supporting column two 824 is fixedly arranged at the position close to the rear end of the lower side of the main sliding plate 821, a guide wheel three 825 rotatably connected with the upper side of the base 1 is rotatably arranged at the lower end of the supporting column two 824, a guide rod two 826 is slidingly inserted into the supporting column two 824, a reset spring three 827 is fixedly arranged on the surface of the guide rod two 826, and the front end of the reset spring three 827 is fixedly connected with the surface of the guide rod two 826. The horizontal drive frame 82 drives the push column 812 and the arc-shaped locking plate 816 to move at the same time under the left and right of the transmission assembly 83.

[0044] Referring to Figure 2 and Figure 8The transmission assembly 83 comprises two U-shaped guide seats 831 fixedly arranged on the upper side of the base 1 and symmetrical left and right, a driving seat 832 slidingly arranged between the two U-shaped guide seats 831 and sliding in the vertical direction, a guide block 833 fixedly arranged on the side close to the guide wheel two 823 of the driving seat 832, the part close to the lower end of the guide block 833 being arranged as an arc surface structure and being in rolling connection with the guide wheel two 823, a guide rod three 834 slidingly connected with the driving seat 832 through an ear seat three on the left and right sides of the driving seat 832, the lower end of the guide rod three 834 being fixedly connected with the upper side of the base 1, and a reset spring four 837 being sleeved on the surface of the guide rod three 834, the upper and lower ends of the reset spring four 837 being fixedly connected with the corresponding ear seat three and the upper side of the base 1 respectively, a transmission rod one 835 being fixedly arranged on the upper side of the driving seat 832, and a transmission rod two 836 being threadedly connected with the upper end of the transmission rod one 835. The height between the transmission rod one 835 and the transmission rod two 836 can be adjusted by rotating the transmission rod two 836, so as to adapt to the different heights required for the subsequent truss 22 to move downward. When the truss 22 moves downward, the driving seat 832 can be in contact with the transmission rod two 836 and move downward, driving the guide block 833 to slide relative to the guide wheel two 823, so that the guide wheel two 823 can move along the arc surface on the guide block 833, and the horizontal drive frame 82 is forced to move the push column 812 and the arc-shaped locking plate 816 to lock the three-jaw chuck 6.

[0045] In specific work, the truss 22 moves downward, the driving block on the driving seat 832 drives the horizontal drive frame 82 to move, driving the push column 812 to move and the arc-shaped locking plate 816 to move, so that the arc-shaped locking plate 816 is in contact with the lower side of the three-jaw chuck 6, and the push column 812 drives the limiting block 813 to move upward and contact the lower side of the three-jaw chuck 6, and the positioning sleeve 753 is inserted into the flange mounting hole (except the first flange mounting hole), so as to fix the three-jaw chuck 6 in multiple ways, avoiding movement of the three-jaw chuck 6 during drilling.

[0046] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A valve body positioning and processing device, comprising a base, a movable frame mounted on the base, and a drilling machine mounted on the movable frame, characterized in that: The upper side of the base is provided with a disc-shaped positioning platform. A three-jaw chuck is rotatably mounted on the upper center of the positioning platform via a rotating shaft. The positioning platform is also provided with a positioning support module for supporting and positioning the drilling positions of different valve shell models. A locking module for limiting the rotation of the three-jaw chuck is provided between the positioning platform and the base. The positioning support module includes a connecting frame that can slide radially along the positioning platform. An arc-shaped platform is provided on the connecting frame. Two sets of connecting components are provided on the arc-shaped platform. Each set of connecting components is provided with a telescopic platform. A positioning component and a guide ball assembly are respectively provided on the two telescopic platforms. An arc-shaped guide rail with the center of the three-jaw chuck as the center and an arc-shaped angle scale are fixedly provided on the arc-shaped platform. A sliding component is provided on the arc-shaped guide rail. The sliding component is connected to the corresponding connecting component. The locking module includes a locking component disposed on the upper side of the positioning platform. A horizontal drive frame is connected to the locking component. A transmission component that cooperates with the horizontal drive frame is disposed on the base. When the movable frame controls the drilling machine to move down, it cooperates with the transmission component to drive the horizontal drive frame to move, thereby controlling the locking component to lock the rotation of the three-jaw chuck. The positioning platform has a fan-shaped notch at its edge. A guide rod is fixedly installed on the arc-shaped sidewall of the notch. The connecting frame includes a fan-shaped slide block that is slidably inserted into the guide rod. The fan-shaped slide block is slidably connected to the notch. An adjusting support rod is provided in the middle of the upper side of the fan-shaped slide block. Two guide telescopic rods symmetrical about the adjusting support rod are fixedly installed on the upper side of the fan-shaped slide block. The end of the guide telescopic rod away from the fan-shaped slide block is fixedly connected to the lower side of the arc-shaped platform. The adjusting support rod includes a support sleeve fixedly installed on the upper side of the fan-shaped slide. The upper end of the support sleeve is threadedly connected to a support column, and the upper end of the support column is rotatably connected to the lower side of the arc-shaped platform. A locking pin is slidably inserted into the outer arc surface of the fan-shaped slide through an ear seat, and the lower side of the locking pin is movably inserted into the lower side of the notch. The connecting assembly includes a U-shaped connecting plate 1, on which an adjusting screw is rotatably mounted. A second connecting plate is threadedly connected to the adjusting screw, and the second connecting plate is slidably connected to the first connecting plate. The side of the second connecting plate away from the first connecting plate is fixedly connected to a corresponding telescopic platform. In one connecting assembly, the first connecting plate is fixedly connected to the upper side of the arc-shaped platform, and in another connecting assembly, the first connecting plate is connected to a sliding assembly. The sliding assembly includes a sliding sleeve slidably mounted on an arc-shaped guide rail. The sliding sleeve is fixedly connected to the corresponding first connecting plate, and a locking bolt is threaded on the upper side of the sliding sleeve. The threaded end of the locking bolt movably abuts against the upper side of the arc-shaped guide rail.

2. The valve body positioning and machining device according to claim 1, characterized in that, The telescopic platform includes a fixed sleeve that is fixedly connected to the connecting plate 2, and a movable sleeve is threadedly connected to the upper end of the fixed sleeve; the guide ball assembly includes multiple balls, which are rotatably connected to the upper end face of the corresponding movable sleeve and are evenly distributed along the circumference of the movable sleeve.

3. The valve body positioning and processing device according to claim 2, characterized in that, The positioning component includes a return spring fixedly installed inside the corresponding movable sleeve. A slider is fixedly installed at the upper end of the return spring, and the slider is slidably connected to the movable sleeve. A positioning sleeve in the shape of a frustum is fixedly installed on the upper side of the slider.

4. The valve body positioning and machining device according to claim 1, characterized in that, The locking assembly includes guide sleeves fixedly mounted on the upper side of the positioning platform and symmetrically arranged on both sides. A rectangular pusher column is slidably inserted into the guide sleeve. A rectangular guide hole is opened on the upper side of the guide sleeve. A sliding groove is opened on any two opposite sides of the guide hole. A limit block is slidably arranged in the guide hole. A return spring is fixedly arranged on the side of the limit block corresponding to the sliding groove through an ear seat. The lower end of the return spring is fixedly connected to the lower inner wall of the sliding groove. The side of the pusher column near the limit block is set as an inclined surface. A guide wheel is rotatably arranged on the lower side of the limit block. The guide wheel is in contact with the inclined surface. The other end of the pusher column is connected to the horizontal drive frame. An arc-shaped locking plate matching the rotating shaft is slidably arranged on the upper side of the positioning platform and near the rear side. The arc-shaped locking plate and the two pushers are both connected to the horizontal drive frame.

5. A valve body positioning and machining device according to claim 4, characterized in that, The horizontal drive frame includes a main slide plate that is slidably mounted on the upper side and near the rear side of the positioning platform. Support plates are fixedly mounted on both the left and right sides of the main slide plate. The support plates are fixedly connected to the corresponding push columns. The front end of the main slide plate is fixedly connected to an arc-shaped locking plate. A guide wheel 2 is rotatably mounted on the rear end of the main slide plate. A support column 2 is fixedly mounted on the lower side of the main slide plate near the rear end. A guide wheel 3 that is rotatably mounted on the lower end of the support column 2 and is rolledly connected to the upper side of the base is mounted on the lower end of the support column 2. A guide rod 2 is slidably inserted into the support column 2. A return spring 3 that is sleeved on the surface of the guide rod 2 is fixedly mounted on the front side of the support column 2. The front end of the return spring 3 is fixedly connected to the surface of the guide rod 2.

6. The valve body positioning and machining device according to claim 5, characterized in that, The transmission assembly includes two U-shaped guide seats fixedly mounted on the upper side of the base and symmetrically arranged on the left and right. A drive seat that slides vertically is slidably arranged between the two U-shaped guide seats. A guide block is fixedly mounted on the side of the drive seat near the guide wheel two. The lower part of the guide block is set with an arc surface structure and is rolledly connected to the guide wheel two. Guide rods three are slidably connected to both sides of the drive seat through ear seats three. The lower end of the guide rod three is fixedly connected to the upper side of the base, and a return spring four is sleeved on the surface of the guide rod. The upper and lower ends of the return spring four are fixedly connected to the corresponding ear seats three and the upper side of the base, respectively. A transmission rod one is fixedly mounted on the upper side of the drive seat, and a transmission rod two is threadedly connected to the upper end of the transmission rod one.

7. A valve body positioning and machining device according to claim 6, characterized in that, The mobile frame includes a column fixedly connected to the upper side of the base, a truss slidably mounted on the column, the drilling machine slidably mounted on the truss, an electric telescopic rod fixedly mounted on the upper side of the column by a fixing plate, the telescopic end of the electric telescopic rod movably passing through the fixing plate and fixedly connected to the upper side of the truss, and the upper end of the transmission rod two movably abutting against the lower side of the truss.

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