A jig for assembling the working cylinder of a six-sided top press

Abstract

This utility model discloses a fixture for assembling the working cylinder of a six-sided top press, including a base plate, a central clamping mechanism, an assembly guide cylinder, several sets of elastic clamping components, a first conical guide cover, and a slow-descent mechanism. This utility model, through the central clamping mechanism, first precisely fixes the hinge beam and aligns its centerline with a first preset axis. Then, the assembly guide cylinder and the first conical guide cover form a physical guide channel. When the working cylinder is hoisted in, regardless of its initial position, it is captured and guided to the center by the conical surface of the first conical guide cover. After entering the assembly guide cylinder, the multi-layered circumferentially distributed elastic clamping components, with their clamping guide wheels, always adhere to the outer wall of the working cylinder under the action of elastic elements, performing multi-point, multi-directional radial alignment and correction, ultimately ensuring that the centerline of the working cylinder coincides with the first preset axis. This achieves fully automatic centering with high precision and no manual intervention.

Description

Technical Field

[0001] This utility model belongs to the technical field of six-sided top press assembly equipment, and particularly relates to a fixture for assembling the working cylinder of a six-sided top press. Background Technology

[0002] The six-sided press is a key piece of equipment for producing superhard materials such as synthetic diamond. Its core component is an ultra-high pressure chamber composed of six sets of hinged beams and working cylinders. As the core pressure-bearing component, the working cylinder is relatively heavy, and the assembly clearance between it and the hinged beams and cylinder body is small, requiring high assembly precision.

[0003] Currently, the assembly of the working cylinder generally adopts a method of overhead crane hoisting and manual positioning. Specifically, the operator uses an overhead crane to lift the working cylinder above the hinge beam, and then, relying on visual inspection and experience, slowly adjusts the position of the working cylinder by manually prying and tapping to align it with the cylinder body of the hinge beam, and finally lowers it into place. This method suffers from poor alignment accuracy, low efficiency, reliance on worker experience and eyesight for alignment, a cumbersome and time-consuming adjustment process, difficulty in guaranteeing assembly accuracy, and a high risk of scratching the mating surfaces of the workpiece due to misalignment. It also poses safety risks, as the working cylinder is suspended in mid-air, and workers prying and directing from below or around it pose a significant safety hazard; if it detaches or overturns, the consequences would be unimaginable. In addition, it is easy to damage the workpiece; manual prying and tapping can easily cause bumps and scratches on the precision-machined surfaces of the working cylinder or hinge beam, affecting the service life and sealing performance of the equipment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fixture for assembling the working cylinder of a six-sided top press, so as to solve the technical problems mentioned in the background art.

[0005] This utility model provides the following technical solution: A fixture for assembling the working cylinder of a six-sided top press includes: The base plate is used to place and support the hinge beam; A central clamping mechanism is disposed on the base plate and is used to clamp and make the cylinder centerline of the hinge beam coincide with the first preset axis. An assembly guide cylinder is mounted on the base plate by a number of sets of centering supports, and the center line of the assembly guide cylinder is configured to be coaxial with a first preset axis. The inner wall of the assembly guide cylinder is provided with several sets of elastic clamping components for radially straightening and buffering the working cylinder that falls into the assembly guide cylinder, including clamping guide wheels and elastic members for providing a pre-tightening force pointing towards the center to the clamping guide wheels; The first conical guide cover has its large-diameter end facing upwards and its small-diameter end coaxially connected to the upper end of the assembly guide cylinder; The slow-descent mechanism is located inside the base plate and includes a slow-descent cylinder coaxially arranged with the first preset axis. Its movable end is used to receive the working cylinder guided into the assembly guide cylinder and controllably release it downward into the cylinder body of the hinge beam.

[0006] Preferably, the elastic element includes a clamping seat perpendicularly disposed on the side of the assembly guide cylinder. The clamping seat has a sliding cavity disposed inside along its length. A slider is adapted inside the sliding cavity. A clamping rod is disposed on one end face of the slider near the center line of the assembly guide cylinder. The other end of the clamping rod passes through the inner wall of the assembly guide cylinder and is connected to the clamping guide wheel through a roller bracket. A clamping spring is disposed between the other end face of the slider and the sliding cavity.

[0007] Preferably, the inner wall of the assembly guide cylinder is provided with a storage groove for storing the clamping guide wheel.

[0008] Preferably, the outer periphery of the guide roller is covered with an engineering plastic layer or a soft metal layer.

[0009] Preferably, multiple sets of the elastic clamping components are evenly distributed circumferentially on the inner wall of the assembly guide cylinder, and are arranged in multiple layers axially.

[0010] Preferably, the centering clamping mechanism includes a plurality of first hydraulic cylinders, the axial direction of the first hydraulic cylinders being perpendicular to the first preset axis, the plurality of first hydraulic cylinders being arranged sequentially at equal intervals around the first preset axis, the piston end of the first hydraulic cylinder being provided with an arc-shaped clamping plate, and the cylinder body of the first hydraulic cylinder being connected to the base plate through a first connecting seat.

[0011] Preferably, the inner curvature of the arc-shaped clamping plate is the same as the lower curvature of the outer side of the hinge beam cylinder.

[0012] Preferably, the centering support includes a plurality of vertical support rods, the upper end of which is connected to the outer wall of the assembly guide cylinder through a plurality of horizontal support rods, and the lower end of which is detachably connected to the base plate through a guide connector.

[0013] Preferably, the guide connector includes a second connecting seat disposed on the base plate, the upper end surface of the second connecting seat is provided with a circular groove, the bottom of the circular groove is provided with a bolt hole, the lower end of the vertical support rod is provided with a circular connecting plate that mates with the circular groove, and the circular connecting plate is connected to the bolt hole by a fastening bolt.

[0014] Preferably, the upper end face of the second connecting seat is further provided with a second conical guide cover, wherein the large diameter end of the second conical guide cover faces upward and the small diameter end is coaxially arranged with the circular groove.

[0015] Preferably, the multiple sets of centering support members are evenly distributed along the circumference of the assembly guide cylinder.

[0016] Preferably, each of the vertical support rods is further provided with a lifting ring at its upper end.

[0017] Preferably, the slow-descent cylinder is arranged vertically upwards, the cylinder body of the slow-descent cylinder is located inside the base plate, and the piston end of the slow-descent cylinder is provided with an abutment plate, which abuts against the bottom end face of the working cylinder through the center hole of the hinge beam.

[0018] Preferably, the upper surface of the abutment plate is provided with a flexible pad.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a fixture for assembling a working cylinder of a six-sided top press. The central clamping mechanism can first accurately fix the hinge beam and make its center line coincide with the first preset axis. Then, a physical guide channel is formed by the assembly guide cylinder and the first conical guide cover. When the working cylinder is hoisted in, no matter what the initial position is, it can be captured by the conical surface of the first conical guide cover and guided to the center. After entering the assembly guide cylinder, the multi-layer circumferentially distributed elastic clamping components and their clamping guide wheels are always in contact with the outer wall of the working cylinder under the action of the elastic element, and perform multi-point and multi-directional radial correction and adjustment, so as to ensure that the center line of the working cylinder coincides with the first preset axis. The entire process is automatically centered with high precision and no manual intervention is required.

[0020] (2) The present invention provides a fixture for assembling a working cylinder of a six-sided top press. By setting a slow-descent mechanism, the movable end of the slow-descent cylinder rises to the highest point in the initial state to support the working cylinder passing through the assembly guide cylinder. When the lower end of the working cylinder contacts the abutment plate of the slow-descent cylinder, its weight is borne by the cylinder. By controlling the slow retraction of the slow-descent cylinder, the working cylinder is placed smoothly and without impact into the hinge beam cylinder body, thereby reducing the impact force when the working cylinder falls. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the central clamping mechanism of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of this utility model.

[0024] Figure 3 This is a schematic diagram of the assembly guide cylinder structure of this utility model.

[0025] Figure 4 This utility model Figure 3 A magnified view of part A.

[0026] Figure 5 This utility model Figure 2 A magnified view of part B.

[0027] In the diagram: 1. Base plate; 2. Hinge beam; 3. Centering clamping mechanism; 31. First hydraulic cylinder; 32. Arc-shaped clamping plate; 33. First connecting seat; 4. Assembly guide cylinder; 5. Centering support; 51. Vertical support rod; 52. Horizontal support rod; 53. Circular connecting plate; 54. Fastening bolt; 6. Guide connector; 61. Second connecting seat; 62. Circular groove; 63. Bolt hole; 64. Second conical guide cover; 7. Elastic clamping assembly; 71. Clamping guide wheel; 72. Clamping seat; 73. Sliding cavity; 74. Slider; 75. Clamping spring; 76. Clamping rod; 8. First conical guide cover; 91. Slow-descent hydraulic cylinder; 10. Working cylinder; 11. Center hole of hinge beam; 12. Lifting ring; 13. Storage slot. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] This utility model provides a fixture for assembling the working cylinder of a six-sided top press, see reference. Figure 1-5 As shown, it includes: Base plate 1, used to place and support hinge beam 2; A central clamping mechanism 3 is disposed on the base plate 1 and is used to clamp and make the cylinder center line of the hinge beam 2 coincide with the first preset axis. The assembly guide cylinder 4 is mounted on the base plate 1 by a number of sets of centering support members 5, and the center line of the assembly guide cylinder 4 is configured to be coaxial with the first preset axis. The inner wall of the assembly guide cylinder 4 is provided with several sets of elastic clamping components 7, which are used to radially straighten and buffer the working cylinder 10 that falls into the assembly guide cylinder 4, including clamping guide wheel 71 and elastic element for providing pre-tightening force to the clamping guide wheel 71 pointing towards the center. The first conical guide cover 8 has its large diameter end facing upwards and its small diameter end coaxially connected to the upper end of the assembly guide cylinder 4. The slow-descent mechanism is located inside the base plate 1 and includes a slow-descent cylinder 91 coaxially arranged with the first preset axis. Its movable end is used to receive the working cylinder 10 guided into the assembly guide cylinder 4 and controllably release it downward into the cylinder body of the hinge beam 2.

[0031] The elastic element includes a clamping seat 72 perpendicularly disposed on the side of the assembly guide cylinder 4. A sliding cavity 73 is provided inside the clamping seat 72 along its length. A slider 74 is fitted inside the sliding cavity 73. A clamping rod 76 is provided on one end face of the slider 74 near the center line of the assembly guide cylinder 4. The other end of the clamping rod 76 penetrates the inner wall of the assembly guide cylinder 4 and is connected to the clamping guide wheel 71 via a roller bracket. A clamping spring 75 is provided between the other end face of the slider 74 and the sliding cavity 73. A receiving groove 13 for receiving the clamping guide wheel 71 is provided on the inner wall of the assembly guide cylinder 4. The outer periphery of the guide roller 62 is covered with an engineering plastic layer or a soft metal layer. Multiple sets of the elastic clamping components 7 are evenly distributed circumferentially on the inner wall of the assembly guide cylinder 4 and are arranged in multiple layers axially. The design of the clamping spring 75 and the storage groove 13 in the elastic clamping assembly 7 enables the clamping guide wheel 71 to provide a constant straightening force and retract when giving way, thus preventing structural interference.

[0032] The centering clamping mechanism 3 includes a plurality of first hydraulic cylinders 31, the axial direction of which is perpendicular to the first preset axis. The plurality of first hydraulic cylinders 31 are arranged sequentially at equal intervals around the first preset axis. An arc-shaped clamping plate 32 is provided at the piston end of each first hydraulic cylinder 31. The cylinder body of the first hydraulic cylinder 31 is connected to the base plate 1 via a first connecting seat 33. The inner curvature of the arc-shaped clamping plate 32 is the same as the lower curvature of the outer side of the cylinder body of the hinge beam 2. Through the synchronous extension of the plurality of first hydraulic cylinders 3, the lower end of the cylinder body of the hinge beam 2 can be pushed, causing the center line of the cylinder body of the hinge beam 2 to coincide with the first preset axis, thus ensuring the stability of the hinge beam 2 during the subsequent assembly of the working cylinder 10.

[0033] The centering support 5 includes several vertical support rods 51. The upper end of the vertical support rods 51 is connected to the outer wall of the assembly guide cylinder 4 through several horizontal support rods 52. The lower end of the vertical support rods 51 is detachably connected to the base plate 1 through a guide connector 6. Multiple sets of the centering support 5 are evenly distributed along the circumference of the assembly guide cylinder 4.

[0034] The guide connector 6 includes a second connecting seat 61 mounted on the base plate 1. The upper surface of the second connecting seat 61 has a circular groove 62, and the bottom of the circular groove 62 has a bolt hole 63. The lower end of the vertical support rod 51 has a circular connecting plate 53 that mates with the circular groove 62. The circular connecting plate 53 is connected to the bolt hole 63 by a fastening bolt 54. The upper surface of the second connecting seat 61 also has a second conical guide cover 64, with its larger diameter end facing upwards and its smaller diameter end coaxially aligned with the circular groove 62. The design of the second conical guide cover 64 allows for quick alignment during the installation of the assembly guide cylinder 4, ensuring the coaxiality of the entire system.

[0035] Preferably, each of the vertical support rods 51 is also provided with a lifting ring 12 at its upper end. The lifting rings 12 on the centering support member 5 also facilitate the hoisting and installation of the entire fixture, further standardizing the operation process.

[0036] The slow-descent cylinder 91 is vertically upward-facing, with its cylinder body located inside the base plate 1. The piston end of the slow-descent cylinder 91 is provided with an abutment plate, which abuts against the bottom surface of the working cylinder 10 via the central hole 11 of the hinge beam. A flexible pad 92 is provided on the upper surface of the abutment plate.

[0037] Working principle: Step 1: Hoist the hinge beam 2 to the approximate predetermined position on the base plate 1, and activate several first hydraulic cylinders 31 of the centering clamping mechanism 3. Their piston rods extend inward simultaneously, pushing the arc-shaped clamping plate 32 to tightly fit the lower end of the outer side of the cylinder body of the hinge beam 2. Since several first hydraulic cylinders 31 are arranged circumferentially at equal intervals around the first preset axis, and the inner curvature of the arc-shaped clamping plate 32 matches the shape of the hinge beam 2, it is ensured that the hinge beam 2 is both firmly clamped and automatically centered, so that the center line of its cylinder body coincides with the first preset axis. Step 2: Using a crane or hoisting equipment, the assembly guide cylinder 4, centering support 5, and first conical guide cover 8 are lifted as a whole using the lifting ring 12 set on the upper end of the vertical support rod 51. The circular connecting plate 53 at the lower end of the vertical support rod 51 is aligned with the circular groove 62 of the second connecting seat 61 on the base plate 1. The large-diameter end of the second conical guide cover 64 provides initial guidance for the circular connecting plate 53, allowing it to easily fall into the circular groove 62 and achieve rapid pre-positioning. Subsequently, fastening bolts 54 are passed through the circular connecting plate 53 and screwed into the bolt hole 63 to lock it, thereby firmly installing the entire upper guide structure on the base plate 1. Due to the coaxial design of the circular groove 62 and the second conical guide cover 64, and the precise alignment of the hinge beam 2, the center line of the assembly guide cylinder 4 is precisely coaxial with the first preset axis (i.e., the center line of the hinge beam cylinder). Step 3: Use a crane to lift the working cylinder 10 to be assembled and move it directly above the first conical guide cover 8. Then, slowly lower the working cylinder 10. The working cylinder 10 first contacts the conical surface of the first conical guide cover 8. Guided by the conical surface, the horizontal position deviation generated during its descent is quickly corrected, allowing it to smoothly slide into the assembly guide cylinder 4. After entering the assembly guide cylinder 4, the outer wall of the working cylinder 10 contacts the circumferentially evenly distributed and axially multi-layered elastic clamping components 7. Figure 2 As shown, the working process of the elastic clamping assembly 7 is as follows: Under the pressure of the working cylinder 10, the clamping guide wheel 71 transmits force to the slider 74 through the roller bracket and clamping rod 76, forcing the slider 74 to compress the clamping spring 75 and retract backward in the sliding cavity 73 of the clamping seat 72. At the same time, the compressed clamping spring 75 provides a continuous, constant elastic preload force to the clamping guide wheel 71 through the slider 74 and clamping rod 76. This force makes the clamping guide wheel 71 always close to the outer wall of the working cylinder 10, providing rolling friction support and constraint. The synergistic effect of multiple sets of elastic clamping assemblies 7 provides radial alignment and buffering for the working cylinder 10 throughout its entire stroke, ensuring that its centerline is highly consistent with the first preset axis. The engineering plastic layer or soft metal layer wrapped around the outer periphery of the clamping guide wheel 71 effectively prevents scratches on the finished surface of the working cylinder 10. Step 4: Under the action of gravity, the working cylinder 10 continues to slide down until its bottom end finally contacts the flexible pad 92 on the abutment plate of the slow-descent mechanism 9. At this time, the entire weight of the working cylinder 10 is borne by the piston rod of the slow-descent cylinder 91. The guide of the working cylinder 10 is limited by the inner cavity of the rod of the hinge beam 2. The control system of the slow-descent cylinder 91 is activated, controlling the piston rod of the slow-descent cylinder 91 to retract at a set, slow speed. The piston rod supports the working cylinder 10 through the abutment plate, making it move downward smoothly and uniformly at a controllable speed of millimeters per second. This process eliminates free fall motion and realizes the lowering with reduced impact.

[0038] Driven by the decelerating cylinder 91, the working cylinder 10 smoothly passes through the cylinder body of the precisely aligned hinge beam 2, and finally lands safely and gently at the bottom of the cylinder body. The flexible pad 92 further plays a role in cushioning and protection during this process; Step 5: After confirming that the working cylinder 10 is fully in place, release the first cylinder 31 of the centering clamping mechanism 3, release the fixation on the hinge beam 2, operate the crane to lift and move the entire upper guide structure, and finally, reset the piston rod of the slow-descent cylinder 91 to prepare for the next assembly. At this point, the high-precision, high-efficiency, and high-safety assembly of the entire heavy-duty working cylinder is complete.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixture for assembling the working cylinder of a six-sided top press, characterized in that, include: Base plate (1) is used to place and support hinge beam (2); A central clamping mechanism (3) is provided on the base plate (1) for clamping and aligning the cylinder centerline of the hinge beam (2) with the first preset axis. The assembly guide cylinder (4) is mounted on the base plate (1) by a number of sets of centering support members (5), and the center line of the assembly guide cylinder (4) is configured to be coaxial with the first preset axis. The inner wall of the assembly guide cylinder (4) is provided with several sets of elastic clamping components (7) for radially straightening and buffering the working cylinder (10) falling into the assembly guide cylinder (4), including clamping guide wheel (71) and elastic element for providing a pre-tightening force pointing to the center of the clamping guide wheel (71); The first conical guide cover (8) has its large diameter end facing upward and its small diameter end coaxially connected to the upper end of the assembled guide cylinder (4); The slow-descent mechanism is located inside the base plate (1) and includes a slow-descent cylinder (91) coaxially arranged with the first preset axis. Its movable end is used to receive the working cylinder (10) guided into the assembly guide cylinder (4) and controllably release it downward into the cylinder body of the hinge beam (2).

2. The clamp for assembling the cylinder of a cubic press according to claim 1, wherein The elastic element includes a clamping seat (72) perpendicularly disposed on the side of the assembly guide cylinder (4). A sliding cavity (73) is provided inside the clamping seat (72) along its length direction. A slider (74) is adapted inside the sliding cavity (73). A clamping rod (76) is provided on one end face of the slider (74) near the center line of the assembly guide cylinder (4). The other end of the clamping rod (76) passes through the inner wall of the assembly guide cylinder (4) and is connected to the clamping guide wheel (71) through a roller bracket. A clamping spring (75) is provided between the other end face of the slider (74) and the sliding cavity (73).

3. The clamp for assembling the cylinder of a cubic press according to claim 2, wherein Multiple sets of the elastic clamping components (7) are evenly distributed circumferentially on the inner wall of the assembly guide cylinder (4) and are arranged in multiple layers axially.

4. The fixture for assembling the working cylinder of a six-sided top press according to claim 1, characterized in that, The centering clamping mechanism (3) includes a plurality of first cylinders (31), the axial direction of the first cylinders (31) is perpendicular to the first preset axis, the plurality of first cylinders (31) are arranged in sequence at equal intervals around the first preset axis, the piston end of the first cylinder (31) is provided with an arc-shaped clamping plate (32), and the cylinder body of the first cylinder (31) is connected to the base plate (1) through a first connecting seat (33).

5. The fixture for assembling the working cylinder of a six-sided top press according to claim 1, characterized in that, The centering support (5) includes several vertical support rods (51). The upper end of the vertical support rod (51) is connected to the outer wall of the assembly guide cylinder (4) through several horizontal support rods (52). The lower end of the vertical support rod (51) is detachably connected to the base plate (1) through a guide connector (6).

6. The fixture for assembling the working cylinder of a six-sided top press according to claim 5, characterized in that, Multiple sets of centering support members (5) are evenly distributed along the circumference of the assembly guide cylinder (4).

7. The fixture for assembling the working cylinder of a six-sided top press according to claim 1, characterized in that, The slow-descent cylinder (91) is arranged vertically upward. The cylinder body of the slow-descent cylinder (91) is located inside the base plate (1). The piston end of the slow-descent cylinder (91) is provided with an abutment plate. The abutment plate abuts against the bottom end face of the working cylinder (10) through the center hole (11) of the hinge beam. The upper end face of the abutment plate is provided with a flexible pad (92).

Images