Positioning mechanism for valve production

Abstract

The invention relates to the technical field of valve production positioning, in particular to a positioning mechanism for valve production. The technical problems that when a valve body is machined, the valve body is prone to shaking slightly, when an existing positioning mechanism positions the valve body, the valve body is inconvenient to support from multiple directions, the valve body is not stable enough in the machining process, the pulling force of tool retracting of a drill bit can generate large acting force on the valve body, and the machining precision is poor are solved. However, an existing positioning mechanism is difficult to fix the bottom of the valve body, so that the valve body is easy to deviate during machining, and the positioning effect on the valve body is poor. A positioning mechanism for valve production comprises a supporting seat; and the two guide columns are fixedly connected to the supporting seat. And when the second rotating seat clamps the valve body, four groups of second piston rods abut against included angles among four channels of the valve body, so that the valve body is supported from multiple directions, the valve body is more stable in the machining process, and the positioning effect is further enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of valve production positioning, and in particular to a positioning mechanism used in valve production. Background Art

[0002] When producing valves, it is necessary to drill holes on the four flanges of the valve body. This processing requires strict control of dimensional accuracy and positional accuracy to ensure that the flanges can be accurately connected to other components. When processing the flanges of the valve body, the valve body will be initially positioned first, and then the flanges of the valve body will be drilled through drilling equipment. After one of the flanges of the valve body is processed, the valve body needs to be flipped and repositioned, and then the remaining flanges are processed through drilling equipment to complete the production of the valve body.

[0003] Since the valve body is prone to slight shaking during processing, and the current positioning mechanism is not convenient for supporting the valve body from multiple directions when positioning the valve body, the valve body is not stable enough during processing, and the pulling force of the drill bit retracting will exert a large force on the valve body, and the current positioning mechanism is difficult to fix the bottom of the valve body when positioning the valve body, causing the valve body to easily shift during processing, resulting in poor positioning effect of the valve body. Summary of the invention

[0004] In order to overcome the above shortcomings, the present invention provides a positioning mechanism for valve production, which can support the valve body from multiple directions to make the valve body more stable during processing and fix the bottom of the valve body to prevent the valve body from shifting during processing, thereby enhancing the positioning effect.

[0005] The technical implementation scheme of the present invention is: a positioning mechanism for valve production, comprising: Support seat; Guide pillars, two guide pillars are fixedly connected to the support seat; A sliding seat, slidably connected to two guide posts; A first hydraulic rod is fixedly connected to the support seat, and a telescopic rod of the first hydraulic rod is fixedly connected to the sliding seat; A first rotating seat, rotatably connected to the supporting seat; The second rotating seat is rotatably connected to the sliding seat, a cavity is provided inside the second rotating seat, and four locking holes are evenly opened on the second rotating seat; A valve body, placed between the first rotating seat and the second rotating seat; The turning mechanism is arranged on the supporting seat; The correction mechanism is arranged on the support seat.

[0006] Optionally, a concave groove is provided on one side of the first rotating seat and the second rotating seat which are close to each other.

[0007] Optionally, the flipping mechanism includes: a second hydraulic rod fixedly connected to the support seat; a guide frame fixedly connected to the telescopic rod of the second hydraulic rod; an overrunning clutch fixedly connected to the end of the first rotating seat away from the second rotating seat; a space cam fixedly connected to the overrunning clutch, the space cam having a straight groove and a spiral groove, the guide frame being slidably connected to the straight groove and the spiral groove on the space cam, and the spiral groove on the space cam being connected to the straight groove on the space cam; a friction ring fixedly connected to the support seat, and the inner ring of the friction ring is in contact with the second rotating seat.

[0008] Optionally, the correction mechanism includes: two guide rods respectively fixed on both sides of the support seat; a sliding frame is slidably connected between the two guide rods, and the end of the sliding frame close to the sliding seat is a rack structure; an extrusion block fixed on the guide frame, and the extrusion block is in contact with the sliding frame; two rotating arms are rotatably connected to the middle part of the support seat; positioning plates are fixed on the two rotating arms; gears are fixed on the rotating shafts of the two rotating arms, the two gears are meshed with each other, and one of the gears is meshed with the rack structure of the sliding frame; a first pressure spring is connected between the two guide rods and the sliding frame respectively.

[0009] Optionally, an inclined surface is provided on the upper portion of the side where the two positioning pieces are close to each other.

[0010] Optionally, a supporting mechanism is also included for supporting the valve body, which is arranged on the guide rod, and the supporting mechanism includes: a first piston rod fixedly connected between the two guide rods; a piston tube is fixedly connected to the middle of the sliding seat, and the inner wall of the piston tube is slidably connected to the first piston rod; a connecting cover is fixedly connected to the upper part of the sliding seat, and the connecting cover is rotatably connected to the second rotating seat, and the connecting cover is connected to the cavity of the second rotating seat; a first connecting tube is connected between the connecting cover and the piston tube, and the two ends of the first connecting tube are respectively connected to the connecting cover and the interior of the piston tube; four supporting frames are evenly fixedly connected to the second rotating seat, and each of the supporting frames has two cavities; four The support frames are respectively connected to the second rotating seats with shunt tubes, and the four shunt tubes are all connected to the internal cavity of the second rotating seat, and the other two ends of each shunt tube are respectively connected to the two cavities of each support frame; the two cavities of each support frame are slidably connected to the second piston rods, and the two second piston rods on the same support frame are a group; the eight second piston rods are slidably connected to the third piston rods, and the two third piston rods on the same group of second piston rods are a group; four docking seats are evenly fixed on the first rotating seat, each of the docking seats has two docking holes, and the docking holes on the four docking seats are respectively aligned with the four groups of third piston rods.

[0011] Optionally, one end of the third piston rod close to the support seat is a spherical protrusion.

[0012] Optionally, a locking assembly is also included for locking the second rotating seat, which is arranged on the sliding seat, and the locking assembly includes: a connecting frame fixedly connected to the top of the sliding seat, the interior of the connecting frame is a cavity; a second connecting tube is connected between the connecting frame and the connecting cover, and the two ends of the second connecting tube are respectively connected to the connecting cover and the interior of the connecting frame; a locking column is slidably connected in the connecting frame, and the locking column contacts one of the locking holes on the second rotating seat; a second pressure spring is connected between the locking column and the interior of the connecting frame.

[0013] Optionally, a pressing mechanism is also included for pressing down the valve body, which is arranged on the sliding seat, and the pressing mechanism includes: guide arms respectively fixed to both sides of the sliding seat, and the two ends of the guide arms close to the support seat are obliquely arranged; two positioning plates are rotatably connected to rotating frames; and torsion springs are respectively connected between the two rotating frames and the positioning plates.

[0014] Optionally, it also includes: two buffer pads, which are respectively installed on the second rotating base and on the side where the second rotating base is close to each other.

[0015] The beneficial effects of the present invention are: 1. When it is necessary to process other flanges of the valve body, the valve body is driven to rotate through the first rotating seat, and then the valve body is flipped, thereby improving the subsequent positioning efficiency. The reset of the guide frame will drive the extrusion block to squeeze the sliding frame back to the initial state again, so that the two positioning plates are reset. In this way, after the valve body is flipped, the valve body will be squeezed from both sides by the rotating arm and the positioning plate, and then the angle of the valve body after the flipping will be corrected, making the positioning more accurate, thereby enhancing the positioning effect.

[0016] 2. When the second rotating seat clamps the valve body, the four sets of second piston rods are used to support the angles between the four channels of the valve body, and the second rotating seat is rotated synchronously with the first rotating seat through the third piston rod, thereby supporting the valve body from multiple directions, making the valve body more stable during the processing and further enhancing the positioning effect.

[0017] 3. After clamping the valve body, the valve body is pressed down by the rotating frame, and then the bottom of the valve body is fixed, so that the valve body is not easily offset during processing, thereby making the positioning more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the turning mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of the split three-dimensional structure of the turning mechanism of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the correction mechanism of the present invention.

[0023] Figure 6 It is a partial three-dimensional structural schematic diagram of the correction mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of a partially disassembled three-dimensional structure of the correction mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0026] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the support mechanism of the present invention.

[0027] Fig.10 It is a partial cross-sectional three-dimensional structural schematic diagram of the support mechanism of the present invention.

[0028] Fig.11 It is a schematic diagram of the three-dimensional structure of the locking assembly of the present invention.

[0029] Fig.12 It is a schematic diagram of the disassembled three-dimensional structure of the locking assembly of the present invention.

[0030] Fig.13 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0031] Fig.14 It is a schematic diagram of the split three-dimensional structure of the pressing mechanism of the present invention.

[0032] The markings of the components in the attached drawings are as follows: 1: support seat, 2: guide column, 3: sliding seat, 4: first hydraulic rod, 5: first rotating seat, 6: second rotating seat, 7: valve body, 8: flip mechanism, 81: second hydraulic rod, 82: guide frame, 83: overrunning clutch, 84: space cam, 85: friction ring, 9: correction mechanism, 91: guide rod, 92: sliding frame, 93: extrusion block, 94: rotating arm, 95: positioning plate, 96: gear, 97: first pressure spring, 10: support Support mechanism, 101: first piston rod, 102: piston tube, 103: first connecting tube, 104: connecting cover, 105: support frame, 106: diverter pipe, 107: second piston rod, 108: third piston rod, 109: docking seat, 11: locking assembly, 111: second connecting tube, 112: connecting frame, 113: locking column, 114: second pressure spring, 12: pressing mechanism, 121: guide arm, 122: rotating frame, 123: torsion spring, 13: buffer pad. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1: A positioning mechanism for valve production, such as Figure 1-Figure 7 As shown, including: A support base 1, used for being installed on a processing table of a drilling device; Guide pillars 2, two guide pillars 2 are connected to the support seat 1 by bolts; A sliding seat 3 is slidably connected to the two guide pillars 2; A first hydraulic rod 4 is connected to the support seat 1 by bolts, and a telescopic rod of the first hydraulic rod 4 is connected to the sliding seat 3 by bolts; The first rotating seat 5 is rotatably connected to the supporting seat 1; The second rotating seat 6 is rotatably connected to the sliding seat 3. A cavity is provided inside the second rotating seat 6. Four locking holes are evenly opened on the second rotating seat 6. The valve body 7 is placed between the first rotating seat 5 and the second rotating seat 6, and the first rotating seat 5 and the second rotating seat 6 are used to clamp the valve body 7; The turning mechanism 8 is arranged on the supporting seat 1; The correction mechanism 9 is arranged on the support seat 1 .

[0035] A concave groove is provided on one side of the first rotating seat 5 and the second rotating seat 6 that are close to each other. The concave grooves of the first rotating seat 5 and the second rotating seat 6 are used to fit the surface curvature of the middle part of the valve body 7 .

[0036] The flipping mechanism 8 includes: a second hydraulic rod 81 connected to the support seat 1 by bolts; a guide frame 82 is connected to the telescopic rod of the second hydraulic rod 81 by bolts; an end of the first rotating seat 5 away from the second rotating seat 6 is connected to an overrunning clutch 83 by a key groove; a space cam 84 is connected to the overrunning clutch 83 by a key groove, and the space cam 84 is provided with a straight groove and a spiral groove, the guide frame 82 is slidably connected to the straight groove and the spiral groove on the space cam 84, the spiral groove on the space cam 84 is connected to the straight groove on the space cam 84, and the guide frame 82 drives the first rotating seat 5 to rotate through the spiral groove of the space cam 84; a friction ring 85 is connected to the support seat 1 by bolts, the inner ring of the friction ring 85 is in contact with the second rotating seat 6, and the friction ring 85 is used to increase the resistance to the rotation of the first rotating seat 5.

[0037] The correction mechanism 9 includes: two guide rods 91 connected to both sides of the support seat 1 by bolts; a sliding frame 92 is slidably connected between the two guide rods 91, and the end of the sliding frame 92 close to the sliding seat 3 is a rack structure; an extrusion block 93 connected to the guide frame 82 by bolts, the extrusion block 93 is in contact with the sliding frame 92, and the extrusion block 93 is used to squeeze the sliding frame 92 to move; two rotating arms 94 are rotatably connected to the middle part of the support seat 1, and the two rotating arms 94 are used to locate the flange at the bottom of the valve body 7; positioning pieces 95 are connected to the two rotating arms 94 by bolts, and the positioning pieces 95 are used to locate the flanges on both sides of the valve body 7; gears 96 are connected to the rotating shafts of the two rotating arms 94 through keyways, and the two gears 96 are meshed with each other, one of the gears 96 is meshed with the rack structure of the sliding frame 92, and the rack structure of the sliding frame 92 is used to drive the rotating arm 94 to rotate through the gear 96; first pressure springs 97 are connected between the two guide rods 91 and the sliding frame 92 respectively.

[0038] An inclined surface is provided on the upper part of the side where the two positioning pieces 95 are close to each other. The inclined surface of the positioning piece 95 is used to guide the valve body 7 to be inserted between the two positioning pieces 95 .

[0039] It also includes: two buffer pads 13, which are respectively installed on the second rotating seat 6 and the side where the second rotating seat 6 is close to each other, and the buffer pads 13 are used to reduce the pressure damage of the valve body 7 of the first rotating seat 5 and the second rotating seat 6.

[0040] Initially, the extrusion block 93 presses against the sliding frame 92, so that the first pressure spring 97 is in a compressed state. First, the operator installs the support seat 1 on the processing table of the drilling equipment, and then places the valve body 7 on the two rotating arms 94. When placing the valve body 7, the upper inclined surfaces of the two positioning pieces 95 are used to guide the flanges at both ends of the valve body 7, which is conducive to inserting the valve body 7 between the two positioning pieces 95. At the same time, the two rotating arms 94 and the two positioning pieces 95 are used to initially position the valve body 7. Then the operator controls the telescopic rod of the first hydraulic rod 4 to retract and drive the sliding seat 3 to move in the direction of the first rotating seat 5. The movement of the sliding seat 3 will drive the second rotating seat 6 to move. After the first rotating seat 5 and the second rotating seat 6 move for a certain distance, the valve body 7 will be squeezed, so that the first rotating seat 5 and the second rotating seat 6 respectively clamp the valve body 7 through the buffer pad 13. In this way, the first rotating seat 5 and the second rotating seat 6 respectively contact the valve body 7 through the buffer pad 13, thereby reducing the pressure damage to the valve body 7; at the same time, through the concave grooves of the first rotating seat 5 and the second rotating seat 6, the surface curvature of the middle part of the valve body 7 can be better fitted, so that the valve body 7 is more stable between the first rotating seat 5 and the second rotating seat 6; then the operator processes the flange on the top of the valve body 7 through the drilling equipment. After the top flange of the valve body 7 is processed, the operator controls the second hydraulic rod 81 The extension of the telescopic rod drives the guide frame 82 to move away from the support seat 1. After the guide frame 82 moves a certain distance, the top of the guide frame 82 will reach the junction of the straight groove and the spiral groove of the space cam 84. At the same time, the sliding frame 92 drives the extrusion block 93 to move, so that the extrusion block 93 no longer resists the sliding frame 92. The first pressure spring 97 is reset, pushing the sliding frame 92 to move away from the valve body 7, so that the rack structure of the sliding frame 92 drives the two rotating arms 94 to rotate outward through the two gears 96 respectively. The rotation of the two rotating arms 94 will drive the two positioning pieces 95 to rotate outward respectively, so that the rotating arms 94 and the positioning pieces 95 avoid the flipping area of ​​the valve body 7. Then the guide frame 82 continues to move, and the spiral groove of the space cam 84 drives the space cam 84 to rotate 90 degrees, so that the space cam 84 drives the first rotating seat 5 to rotate 90 degrees through the overrunning clutch 83. The first rotating seat 5 rotates 90 degrees and drives the valve body 7 to rotate 90 degrees together, so that the flange of the valve body 7 that has not been processed faces upward. At the same time, the friction ring 85 increases the resistance of the first rotating seat 5 to rotate, thereby preventing the first rotating seat 5 from rotating too much due to the inertia of the valve body 7. In this way, when it is necessary to process the other flanges of the valve body 7, the valve body 7 is driven to rotate through the first rotating seat 5, and then the valve body 7 is turned over, thereby improving the subsequent positioning efficiency;Then the operator controls the telescopic rod of the second hydraulic rod 81 to retract and drive the guide frame 82 to reset. The guide frame 82 resets by first driving the space cam 84 to reset through the spiral groove of the space cam 84. At this time, the space cam 84 does not drive the first rotating seat 5 to rotate through the overrunning clutch 83. Then the guide frame 82 continues to reset, so that the guide frame 82 drives the extrusion block 93 to squeeze the sliding frame 92 again to return to the initial state, so that the rack structure of the sliding frame 92 drives the two rotating arms 94 and the two positioning pieces 95 to reset through the two gears 96 respectively. In this way, the valve body 7 will be turned over through the rotating arms 94 and The positioning sheet 95 squeezes the valve body 7 from both sides, thereby correcting the angle of the valve body 7 after flipping, making the positioning more accurate, thereby enhancing the positioning effect; then the operator uses the drilling equipment to process the flange of the valve body 7 currently located at the top, repeating this process, the operator flips the flange through the second hydraulic rod 81, and then uses the drilling equipment to process the other flanges of the valve body 7; after the processing of the valve body 7 is completed, the operator controls the telescopic rod of the first hydraulic rod 4 to drive the sliding seat 3 to reset, so that the second rotating seat 6 is reset, and then the operator removes the valve body 7 from the two rotating arms 94. ;

[0041] Embodiment 2: Based on embodiment 1, Figure 1-Figure 12As shown, it also includes a support mechanism 10 for supporting the valve body 7, which is arranged on the guide rod 91, and the support mechanism 10 includes: a first piston rod 101 connected between the two guide rods 91 by bolts; a piston tube 102 is connected to the middle part of the sliding seat 3 by bolts, and the inner wall of the piston tube 102 is slidably connected to the first piston rod 101; a connecting cover 104 is connected to the upper part of the sliding seat 3 by bolts, and the connecting cover 104 is rotatably connected to the second rotating seat 6, and the connecting cover 104 is connected to the cavity of the second rotating seat 6; a first connecting tube 103 is connected between the connecting cover 104 and the piston tube 102, and the two ends of the first connecting tube 103 are respectively connected to the connecting cover 104 and the inside of the piston tube 102; four support frames 105 are evenly connected to the second rotating seat 6 by bolts, and each of the support frames 105 has two cavities; the four support frames 105 are respectively connected to the second rotating seat 6 It is connected to a shunt tube 106, and four of the shunt tubes 106 are connected to the internal cavity of the second rotating seat 6, and the other two ends of each shunt tube 106 are respectively connected to the two cavities of each support frame 105; the two cavities of each support frame 105 are slidably connected with a second piston rod 107, and the two second piston rods 107 on the same support frame 105 are a group, and the four groups of second piston rods 107 are used to resist the angle between the four channels of the valve body 7; the eight second piston rods 107 are slidably connected with a third piston rod 108, and the two third piston rods 108 on the same group of second piston rods 107 are a group; four docking seats 109 are evenly connected to the first rotating seat 5 by bolts, and each of the docking seats 109 has two docking holes, and the docking holes on the four docking seats 109 are respectively aligned with the four groups of third piston rods 108, and the third piston rod 108 is used to insert into the docking holes on the docking seat 109.

[0042] One end of the third piston rod 108 close to the support seat 1 is a spherical protrusion, and the spherical protrusion of the third piston rod 108 is used for guiding.

[0043] It also includes a locking assembly 11 for locking the second rotating seat 6, which is arranged on the sliding seat 3, and the locking assembly 11 includes: a connecting frame 112 connected to the top of the sliding seat 3 by bolts, and the interior of the connecting frame 112 is a cavity; a second connecting pipe 111 is connected between the connecting frame 112 and the connecting cover 104, and the two ends of the second connecting pipe 111 are respectively connected to the interior of the connecting cover 104 and the connecting frame 112; a locking column 113 is slidably connected in the connecting frame 112, and the locking column 113 contacts one of the locking holes on the second rotating seat 6, and the locking column 113 is used to lock the second rotating seat 6 through the locking hole of the second rotating seat 6; a second pressure spring 114 is connected between the locking column 113 and the interior of the connecting frame 112.

[0044] At first, the piston tube 102 is filled with hydraulic oil, and the second pressure spring 114 presses against the locking column 113, so that the locking column 113 presses against the locking hole of the second rotating seat 6. When the sliding seat 3 drives the second rotating seat 6 to approach the valve body 7, it will drive the piston tube 102 and the support frame 105 to move together, so that the first piston rod 101 squeezes the hydraulic oil in the piston tube 102. After being squeezed, the hydraulic oil in the piston tube 102 will enter the connecting cover 104 through the first connecting tube 103, and then the hydraulic oil enters the connecting frame 112 through the second connecting tube 111 to squeeze the locking column 113 to move upward. The second pressure spring 114 is compressed, so that the locking column 113 no longer presses against the locking hole of the second rotating seat 6. At the same time, the hydraulic oil passes through the connecting cover 10 4 enters the cavity of the second rotating seat 6. After the hydraulic oil enters the cavity of the second rotating seat 6, it will enter the cavities of the four support frames 105 through the four shunt pipes 106 respectively. Then the hydraulic oil pushes the second piston rod 107 and the third piston rod 108 to move in the direction close to the first rotating seat 5. After the four groups of second piston rods 107 move to the end, they will respectively press against the angles between the four channels of the valve body 7. After the four groups of third piston rods 108 move to the end, they will be inserted into the docking holes of the four docking seats 109 through the spherical protrusions of the third piston rods 108. In this way, when the third piston rod 108 and the docking seat 109 are docked, the spherical protrusions of the third piston rod 108 are inserted into the docking holes of the docking seat 109, thereby automatically correcting the third piston rod 1 08 and a slight deviation between the docking seat 109; when the first rotating seat 5 rotates and drives the four docking seats 109 to rotate, the four docking seats 109 will drive the second rotating seat 6 to rotate together through the third piston rod 108, the second piston rod 107 and the support frame 105. In this way, when the second rotating seat 6 clamps the valve body 7, the four groups of second piston rods 107 are used to press against the angle between the four channels of the valve body 7, and the third piston rod 108 is used to make the second rotating seat 6 and the first rotating seat 5 rotate synchronously, thereby supporting the valve body 7 from multiple directions, making the valve body 7 more stable during the processing and further enhancing the positioning effect; after the processing of the valve body 7 is completed, the sliding seat 3 is reset to drive the piston tube 102 to reset, so that negative pressure is generated in the piston tube 102, Subsequently, the piston tube 102 sucks out the hydraulic oil in the support frame 105 through the first connecting tube 103, the connecting cover 104, the second rotating seat 6 and the diverter pipe 106, so that the third piston rod 108 and the second piston rod 107 are reset. At the same time, the piston tube 102 sucks out the hydraulic oil in the connecting frame 112 through the first connecting tube 103, the connecting cover 104 and the second connecting tube 111, and the second pressure spring 114 resets and squeezes the locking column 113 to move downward and again against the locking hole of the second rotating seat 6. In this way, the second rotating seat 6 presses against the locking hole of the second rotating seat 6 through the locking column 113 when the valve body 7 is not clamped, thereby preventing external force from pushing the second rotating seat 6 to rotate, thereby ensuring the subsequent docking accuracy between the third piston rod 108 and the docking seat 109.

[0045] Embodiment 3: Based on embodiment 2, Figure 1-Figure 14 As shown, a pressing mechanism 12 is also included for pressing down the valve body 7, which is arranged on the sliding seat 3. The pressing mechanism 12 includes: guide arms 121 respectively connected to the two sides of the sliding seat 3 by bolts, and the two ends of the guide arms 121 close to the support seat 1 are obliquely arranged; the two positioning plates 95 are rotatably connected to a rotating frame 122, and the obliquely arranged end of the guide arm 121 is used to squeeze the rotating frame 122 to rotate; the two rotating frames 122 are respectively connected to the positioning plates 95 with torsion springs 123.

[0046] When the sliding seat 3 moves toward the valve body 7, it will drive the guide arm 121 to move together. The movement of the guide arm 121 will squeeze the rotating frame 122 to rotate through one end of the guide arm 121 which is obliquely set. The torsion spring 123 is twisted so that the upper part of the rotating frame 122 presses down the bottom flange of the valve body 7. When the two rotating arms 94 rotate outward, the lower part of the rotating frame 122 no longer presses against the guide arm 121. The torsion spring 123 resets and drives the rotating frame 122 to reset. When the rotating arm 94 resets to correct the valve body 7, the rotating arm 94 drives The rotating frame 122 presses against the guide arm 121 again, so that the rotating frame 122 rotates again to press down the valve body 7, and the torsion spring 123 is twisted. In this way, the valve body 7 is clamped and then pressed down by the rotating frame 122, and then the bottom of the valve body 7 is fixed, so that the valve body 7 is not easily displaced during processing, thereby making the positioning more effective; after the processing of the valve body 7 is completed, the sliding seat 3 is reset to drive the guide arm 121 to reset, so that the guide arm 121 no longer presses against the rotating frame 122, and the torsion spring 123 is reset to drive the rotating frame 122 to reset.

[0047] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A positioning mechanism for valve production, characterized by: include: Support seat (1); Guide pillars (2), two guide pillars (2) are fixedly connected to the support seat (1); A sliding seat (3) is slidably connected to the two guide pillars (2); A first hydraulic rod (4) is fixedly connected to the support seat (1), and a telescopic rod of the first hydraulic rod (4) is fixedly connected to the sliding seat (3); A first rotating seat (5) is rotatably connected to the supporting seat (1); A second rotating seat (6) is rotatably connected to the sliding seat (3), a cavity is provided inside the second rotating seat (6), and four locking holes are evenly opened on the second rotating seat (6); A valve body (7) is placed between the first rotating seat (5) and the second rotating seat (6); A turning mechanism (8) is arranged on the supporting seat (1); The correction mechanism (9) is arranged on the support seat (1).

2. A positioning mechanism for valve production according to claim 1, characterized in that: A concave groove is provided on one side of the first rotating seat (5) and the second rotating seat (6) which are close to each other.

3. A positioning mechanism for valve production according to claim 1, characterized in that: The flip mechanism (8) comprises: a second hydraulic rod (81) fixedly connected to the support seat (1); a guide frame (82) fixedly connected to the telescopic rod of the second hydraulic rod (81); an overrunning clutch (83) fixedly connected to one end of the first rotating seat (5) away from the second rotating seat (6); a space cam (84) fixedly connected to the overrunning clutch (83), the space cam (84) having a straight groove and a spiral groove, the guide frame (82) being slidably connected to the straight groove and the spiral groove on the space cam (84), and the spiral groove on the space cam (84) being connected to the straight groove on the space cam (84); and a friction ring (85) fixedly connected inside the support seat (1), the inner ring of the friction ring (85) being in contact with the second rotating seat (6).

4. A positioning mechanism for valve production according to claim 3, characterized in that: The correction mechanism (9) comprises: two guide rods (91) respectively fixedly connected to both sides of the support seat (1); a sliding frame (92) is slidably connected between the two guide rods (91), and one end of the sliding frame (92) close to the sliding seat (3) is a rack structure; an extrusion block (93) fixedly connected to the guide frame (82), and the extrusion block (93) is in contact with the sliding frame (92); two rotating arms (94) are rotatably connected to the middle of the support seat (1); a positioning piece (95) is fixedly connected to the two rotating arms (94); gears (96) are fixedly connected to the rotating shafts of the two rotating arms (94), and the two gears (96) are meshed with each other, and one of the gears (96) is meshed with the rack structure of the sliding frame (92); and first pressure springs (97) are respectively connected between the two guide rods (91) and the sliding frame (92).

5. A positioning mechanism for valve production according to claim 4, characterized in that: An inclined surface is provided on the upper part of one side where the two positioning pieces (95) are close to each other.

6. A positioning mechanism for valve production according to claim 4, characterized in that: The valve body (7) is also provided with a support mechanism (10) for supporting the valve body (7), and is arranged on the guide rod (91), wherein the support mechanism (10) comprises: a first piston rod (101) fixedly connected between the two guide rods (91); a piston tube (102) fixedly connected to the middle of the sliding seat (3), and the inner wall of the piston tube (102) is slidably connected to the first piston rod (101); a connecting cover (104) fixedly connected to the upper part of the sliding seat (3), and the connecting cover (104) is rotatably connected to the second rotating seat (6), and the connecting cover (104) is communicated with the cavity of the second rotating seat (6); a first connecting tube (103) is connected between the connecting cover (104) and the piston tube (102), and the two ends of the first connecting tube (103) are respectively communicated with the connecting cover (104) and the interior of the piston tube (102); four supporting frames (105) are evenly fixedly connected to the second rotating seat (6), and each of the supporting frames (105) has two The first rotating seat (5) is provided with a plurality of connecting rods (109) connected to the first rotating seat (5), wherein the connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5). The connecting rods (109) are connected to the first rotating seat (5), and the connecting rods (109) are connected to the first rotating seat (5).

7. A positioning mechanism for valve production according to claim 6, characterized in that: One end of the third piston rod (108) close to the support seat (1) is a spherical protrusion.

8. A positioning mechanism for valve production according to claim 6, characterized in that: The invention also comprises a locking assembly (11) for locking the second rotating seat (6), which is arranged on the sliding seat (3), and the locking assembly (11) comprises: a connecting frame (112) fixedly connected to the top of the sliding seat (3), the interior of the connecting frame (112) being a cavity; a second connecting tube (111) connected between the connecting frame (112) and the connecting cover (104), the two ends of the second connecting tube (111) being respectively connected to the interior of the connecting cover (104) and the connecting frame (112); a locking column (113) being slidably connected inside the connecting frame (112), the locking column (113) being in contact with one of the locking holes on the second rotating seat (6); and a second pressure spring (114) being connected between the locking column (113) and the interior of the connecting frame (112).

9. A positioning mechanism for valve production according to claim 8, characterized in that: Also includes A pressing mechanism (12) is provided on the sliding seat (3) for pressing down the valve body (7), the pressing mechanism (12) comprising: guide arms (121) respectively fixed to two sides of the sliding seat (3), the two guide arms (121) being arranged obliquely at one end close to the support seat (1); two positioning plates (95) being rotatably connected to rotating frames (122); and torsion springs (123) being respectively connected between the two rotating frames (122) and the positioning plates (95).

10. A positioning mechanism for valve production according to claim 9, characterized in that: Also includes: The two buffer pads (13) are respectively mounted on the second rotating seat (6) and on a side of the second rotating seat (6) that is close to each other.

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