Positioning tool for forming large-diameter nickel alloy seal head

Abstract

The application provides a positioning tool for forming a large-diameter nickel alloy sealing head, which can remotely control positioning, automatically guide during positioning, remotely control accurate positioning, fix a position through a positioning mechanism during positioning, and be disassembled after positioning is completed, and the technical scheme is that a base is provided with a movable slot opening to the left, the movable slot opening is rotationally connected between the lower end of a rotating rod and the lower end of the base, a threaded hole horizontally arranged on the upper end of the rotating rod is provided, a threaded rod is threadedly connected in the threaded hole, a guide piece is rotationally connected to the right end of the threaded rod, characterized in that the right end face of the guide piece is an inclined guide surface, a hydraulic rod is fixedly connected to the rotating rod at the lower end of the threaded rod, a correction rod is rotationally connected to the right end of the hydraulic rod, the front end and the rear end of the correction rod are respectively inclinedly extended to the right, and a contact wheel is rotationally connected to the front end and the rear end of the correction rod respectively, and the base is provided with a positioning mechanism for positioning the rotating rod.

Description

Technical Field

[0001] This invention relates to the field of head forming, and in particular to a positioning fixture for forming large-diameter nickel alloy heads. Background Technology

[0002] During the forming process of large-diameter heads, the raw materials to be processed are disc-shaped. These disc-shaped blanks are loaded onto a stamping machine. Because the stamping process requires maintaining high temperatures throughout, loading must be rapid, followed by quick positioning to prevent cooling and oxidation caused by prolonged exposure to air. Positioning also corrects the center position; failure to do so will result in a lower yield and eccentricity. Therefore, rapid correction and positioning after loading are crucial. Sufficient time is then available for processing before the workpiece cools down. Since the workpiece temperature is typically around 1000 degrees Celsius, which is inaccessible to humans, heat-resistant steel structures are required for positioning and processing. Furthermore, remote control for correction is necessary during the processing. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a positioning fixture for forming large-diameter nickel alloy heads, which can be remotely controlled for positioning. During the positioning process, it can achieve automatic guidance and automatic coarse positioning, and then remotely control precise positioning. At the same time, the positioning mechanism fixes the position during positioning, and it can be disassembled after positioning is completed.

[0004] The technical solution includes a base with a movable slot opening to the left. The lower end of the movable slot is rotatably connected to the lower end of a rotating rod. The upper end of the rotating rod has a horizontally arranged threaded hole, and a threaded rod is threaded into the threaded hole. A guide is rotatably connected to the right end of the threaded rod. The guide is characterized in that the upper end of the right end face of the guide is an oblique guide surface. A hydraulic rod is fixedly connected to the rotating rod at the lower end of the threaded rod. A correction rod is rotatably connected to the right end of the hydraulic rod. The front and rear ends of the correction rod extend obliquely to the right, and contact wheels are rotatably connected to the front and rear ends of the correction rod. The base is provided with a positioning mechanism for positioning the rotating rod.

[0005] Preferably, the angle between the right end face and the upper end face of the guide is a chamfer arranged at an angle, and the left end of the lower end face of the guide is laterally slidably connected to the upper end of the correction rod.

[0006] Preferably, the positioning mechanism includes a positioning component rotatably connected to the base. The protruding end of the positioning component is provided with a locking block at a corresponding position on the base. The two locking blocks are positioned by fasteners, which are connected to the base via vertically arranged lifting rods.

[0007] Preferably, the lower end of the card block is provided with a blocking block, and the outer side of the positioning member is provided with a limiting piece.

[0008] Preferably, the upper left end of the base is provided with an arc-shaped bevel to prevent interference with the guide component.

[0009] Preferably, the guide includes a tapered column at the lower end, a square component fixedly connected to the upper end of the tapered column, a horizontally arranged threaded hole at the upper end of the square component, and a hydraulic rod fixedly connected to the square component arranged parallel to the threaded hole.

[0010] Preferably, the right end of the guide extends downward and is arranged horizontally between the guide member and the lower end face of the correction rod.

[0011] Preferably, the front and rear ends of the correction rod extend outward and tilt to the right, and the contact wheel shafts rotatably connected to the ends of each correction rod are arranged vertically.

[0012] Preferably, the left end of the threaded rod is detachably connected to a handle wheel via a spline, and the handle wheel is provided with anti-slip texture.

[0013] As a preferred option, the positioning fixtures are in multiple sets and evenly distributed around the circumference.

[0014] Preferably, the rotating rod shaft is connected to a power source for driving the rotating rod to rotate, and the power source is a drive motor or a hydraulic steering mechanism.

[0015] The beneficial effects of this invention are:

[0016] 1. Capable of remote control and positioning;

[0017] 2. It can achieve automatic guidance and automatic coarse positioning during the positioning process;

[0018] 3. It can be remotely controlled for precise positioning;

[0019] 4. The position is fixed by a positioning mechanism during positioning;

[0020] 5. Disassembly can be performed after positioning is completed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall invention.

[0022] Figure 2 This is a side view of the overall schematic diagram of the present invention.

[0023] Figure 3 This is a second perspective view of the side view of the present invention.

[0024] Figure 4 This is a schematic diagram of the invention.

[0025] Figure 5 This is a diagram of the internal structure of the present invention.

[0026] Figure 6 This is a cross-sectional view of the internal structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the rotating rod structure of the present invention.

[0028] Figure Labels

[0029] 1. Base; 2. Movable slot; 3. Rotating rod; 4. Threaded rod; 5. Guide component; 6. Hydraulic rod; 7. Correcting rod; 8. Contact wheel; 9. Positioning component; 10. Locking block; 11. Fastener; 12. Blocking block; 13. Limiting piece; 14. Arc-shaped bevel; 15. Conical column; 16. Square component; 17. Handle wheel. Detailed Implementation

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] In this embodiment, the positioning fixtures used in this solution are grouped into multiple sets of three or more. Each positioning fixture is installed on the stamping equipment and is evenly distributed around the circumference. The workpiece targeted in this solution is a disc-shaped workpiece. The positioning fixtures are installed quickly before stamping. After the positioning installation, the fixtures can be accurately corrected and finely adjusted. Then, during the stamping process, the positioning fixtures are moved to prevent them from affecting the normal operation of the stamping equipment.

[0032] Before using the equipment, multiple positioning fixtures are welded onto the stamping equipment. During welding, the positioning fixtures should be evenly distributed around the circumference, and the correction rods 7 in each positioning fixture should be arranged towards the center of the stamping equipment. At the same time, the position of the correction rods 7 should correspond to the position of the blank so that the correction rods 7 can correct the position of the blank. Before use, the positioning mechanism is not positioned, and the lower end of the rotating rod 3 is rotatably connected to the base 1. The upper end of the rotating rod 3 drives the upper threaded rod 4 and hydraulic rod 6 to be tilted on the left. Before use, manual installation is required.

[0033] During installation, push the rotating rod 3 to rotate clockwise until it reaches its limit position and stops. At this point, rotate the positioning component 9 located on the base 1, which is used to position the rotating rod 3. One end of the positioning component 9 is rotatably connected to the base 1, and the other end has a locking block 10. The middle of the positioning component 9 has an arc-shaped bending structure, which cooperates with the rotating rod 3 and fits against the rotating rod 3 after positioning. Then, control the positioning component 9 to rotate until it is locked onto the rotating rod 3, and the locking block 10 on the positioning component 9 and the locking block on the base 1... When the two blocks 10 are aligned and engaged, the lifting rod is controlled to lower the fastener 11. During the descent, the fastener 11 engages the two locking blocks 10, forming an inverted T-shape when they come into contact. Each locking block 10 occupies a symmetrical half, and the fastener 11 covers the outside of the inverted T-shape, preventing the two locking blocks 10 from separating and thus providing a positioning function. Limiting pieces 13 are provided on the outside of the locking blocks 10 to prevent the fastener 11 from being pried open when the rotating rod 3 is subjected to external force, thereby preventing the positioning from being disrupted. The positioning is inaccurate. The blocking block 12 at the lower end of the locking block 10 can limit and position the fastener 11, preventing the fastener 11 from failing to provide feedback on its current position and where to stop during movement via the lifting rod. After positioning the rotating rod 3, the extension of the threaded rod 4 to the right needs to be adjusted. The right end of the threaded rod 4 is rotatably connected to the guide 5. The right end of the guide 5 is extended inward by the movement of the guide 5 to the right. Multiple guides 5 extend together to form a ring-shaped limiting area. Since the upper ends of each guide 5 are arranged obliquely, and each guide 5 forms a limiting area, the limiting area will form a trumpet-shaped structure with a larger upper part and a smaller lower part due to the oblique upper parts of each guide 5. Therefore, when the blank is transferred to the limiting area, the bottom surface of the blank will be at the stamping equipment, and the side of the blank will be guided by the guide 5 to perform coarse positioning. At this time, the blank is placed at the stamping equipment, which is the state of coarse positioning. Then, fine positioning can be performed.

[0034] During precise positioning of the blank, hydraulic pipes connected to each hydraulic rod 6 extend the protruding ends of each hydraulic rod. A correction rod 7 is fixedly connected to the protruding end of each hydraulic rod 6, extending towards the front and rear ends respectively. Each protruding end of the correction rod 7 is rotatably connected to a contact wheel 8, with the contact wheel 8's axis of rotation arranged vertically. During precise positioning, the extension of the hydraulic rod 6 causes the correction rod 7 connected to each hydraulic rod 6 to extend as well. Two correction rods 7 are symmetrically arranged at each protruding end of the hydraulic rod 6. The contact wheel 8, vertically rotatably connected to the end of each correction rod 7, contacts the blank, and the position of the blank is corrected by the extension of the hydraulic rod 6. By controlling each hydraulic rod 6 to extend to a set position, the blank is pushed to the preset position, thus completing the positioning action. During the entire process, adjustments are continuously made via the contact wheel 8.

[0035] The guide member 5 and the upper end face of the correction rod 7 are arranged in horizontal contact and slide together. At the same time, because of the sliding fit between the upper end of the guide member 5 and the correction rod 7, the rotational connection between the guide member 5 and the threaded rod 4 will not make them move as a whole while maintaining a single posture. Even if the threaded rod 4 rotates, it will not drive the guide member 5 to rotate, but can only control the guide member 5 to extend and retract.

[0036] The hydraulic rods 6 are controlled by hydraulic pressure. Each hydraulic rod 6 can be set to a single pressure, or the hydraulic pressure supplied by each hydraulic rod 6 can be connected in parallel so that one pressure controls all hydraulic rods 6, thereby maintaining the same pressure when each hydraulic rod 6 extends. Alternatively, each hydraulic rod 6 can be equipped with a pressure sensor so that the pressure supply stops when the pressure in each hydraulic rod 6 reaches the set value.

[0037] The rotating shaft of the rotating rod 3, the rotating connection between the positioning part 9 and the base 1, and the lifting rod used to drive the fastener 11 to rise and fall are all remotely controlled, or can be driven manually. However, when used manually, the temperature needs to be reduced before use.

Claims

1. A positioning fixture for forming a large-diameter nickel alloy end cap, comprising a base (1), wherein the base (1) is provided with a movable slot (2) opening to the left, the lower end of the movable slot (2) is rotatably connected to the lower end of a rotating rod (3), the upper end of the rotating rod (3) is provided with a horizontally arranged threaded hole, a threaded rod (4) is threadedly connected to the threaded hole, and a guide member (5) is rotatably connected to the right end of the threaded rod (4), characterized in that, The upper end of the right end face of the guide member (5) is an inclined guide surface. A hydraulic rod (6) is fixedly connected to the rotating rod (3) at the lower end of the threaded rod (4). A correction rod (7) is rotatably connected to the right end of the hydraulic rod (6). The front and rear ends of the correction rod (7) extend obliquely to the right. Contact wheels (8) are rotatably connected to the front and rear ends of the correction rod (7). A positioning mechanism for positioning the rotating rod (3) is provided on the base (1). The positioning mechanism includes a positioning component (9) rotatably connected to the base (1). The extended end of the positioning component (9) is provided with a locking block (10) at a position corresponding to the base (1). The two locking blocks (10) are positioned by fasteners (11). The fasteners (11) are connected to the base (1) via vertically arranged lifting rods. Before the equipment is used, the positioning mechanism is not positioned, and the lower end of the rotating rod (3) is rotatably connected to the base (1), while the upper end of the rotating rod (3) drives the upper threaded rod (4) and hydraulic rod (6) to be tilted on the left side. Before use, it needs to be installed manually. During installation, push the rotating rod (3) to rotate clockwise. After the rotating rod (3) rotates clockwise to the limit position, stop. At this time, rotate the positioning part (9) located on the base (1) for positioning the rotating rod (3). One end of the positioning part (9) is rotatably connected to the base (1), while the other end is provided with a locking block (10). The positioning component (9) has an arc-shaped bending structure in the middle. The arc-shaped bending structure cooperates with the rotating rod (3) and fits with the rotating rod (3) after positioning. After the positioning component (9) is rotated and locked on the rotating rod (3), the locking block (10) on the positioning component (9) corresponds to and fits with the locking block (10) on the base (1). By controlling the lifting rod, the fastener (11) is driven to descend. During the descent, the fastener (11) locks the two locking blocks (10). When the two locking blocks (10) come into contact, they form an inverted T-shaped structure. Each locking block (10) occupies a symmetrical half. The fastener (11) covers the outside of the inverted T-shaped structure, so that the two locking blocks (10) cannot be separated, thus playing a positioning role.

2. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The guide (5) has a chamfered angle between its right and upper end faces, and the guide (5) has a horizontal sliding connection between its lower left end face and the upper end of the correction rod (7).

3. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The lower end of the card block (10) is provided with a blocking block (12), and the outer side of the positioning member (9) is provided with a limiting piece (13).

4. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The upper left end of the base (1) is provided with an arc-shaped bevel (14) to prevent interference with the guide (5).

5. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The rotating rod (3) includes a tapered column (15) at the lower end, and a square piece (16) is fixedly connected to the upper end of the tapered column (15). A threaded hole arranged horizontally is opened at the upper end of the square piece (16), and a hydraulic rod (6) fixedly connected to the square piece (16) is arranged parallel to the threaded hole.

6. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The guide (5) extends downward from its right end and is arranged horizontally between the guide (5) and the lower end face of the correction rod (7).

7. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The front and rear ends of the correction rod (7) extend outward and tilt to the right, and the contact wheel (8) connected to the end of each correction rod (7) is arranged vertically.

8. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The left end of the threaded rod (4) is detachably connected to a handle wheel (17) via a spline, and the handle wheel (17) is provided with anti-slip texture.

9. The positioning fixture for forming a large-diameter nickel alloy head according to claim 1, characterized in that, The positioning fixtures are in multiple sets and are evenly distributed around the circumference.

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