Spherical end socket cold pressing die

Abstract

The utility model discloses a cold pressing die for a spherical end socket, relates to the technical field of stamping dies, and aims to solve the problems that a material plate (blank) is easy to deviate due to operation errors or inertia when being placed on a bottom die, so that the wall thickness of the formed end socket is not uniform, the edge is not symmetrical and the like. A group of outer ring pieces are mounted on the outer wall of the bottom die, a ring groove is formed in the top surface of each outer ring piece, a correcting mechanism and a driving mechanism are arranged in each ring groove, a cover plate is arranged on the top surface of each outer ring piece, a through hole is formed in the top surface of each cover plate and is in sliding connection with the correcting mechanism, and an electric push cylinder capable of driving the correcting mechanism to ascend and descend is arranged on each outer ring piece; an outer ring piece is integrated with a correcting mechanism and a driving mechanism, an electric push cylinder can accurately control lifting of a correcting block, a driving motor is matched to drive a rotating piece and an inner ring tooth section, successive meshing driving of four sets of correcting gears is achieved, the correcting block conducts dynamic centering adjustment on a material plate, manual correction is thoroughly replaced, and the correcting efficiency is improved. And the positioning precision and the operation safety are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch die technical field, especially a kind of spherical head cold-pressing die. BACKGROUND

[0002] Spherical head is the key component in pressure vessel manufacturing, and its forming precision directly affects the safety performance of equipment. The traditional cold-pressing die usually adopts hydraulic drive to cooperate with the upper and lower die structure, but in actual processing, the material plate (blank) placed in the bottom die is easy to deviate due to operation error or inertia, resulting in uneven wall thickness and asymmetric edge of the formed head.

[0003] Therefore, the present application provides a kind of spherical head cold-pressing die to meet the needs. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a kind of spherical head cold-pressing die, which aims to solve the problem of uneven wall thickness and asymmetric edge of the formed head caused by the deviation of the material plate (blank) placed in the bottom die due to operation error or inertia.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a kind of spherical head cold-pressing die, comprising a shelf and a hydraulic cylinder, a top die and a bottom die, the top surface of the shelf is provided with a hydraulic cylinder, the bottom of the shelf is provided with a bottom die, the top of the bottom die is provided with a top die controlled by the hydraulic cylinder, characterized in that: a group of outer ring pieces are installed on the outer wall of the bottom die, the top surface of the outer ring piece is provided with a ring groove, a correction mechanism and a driving mechanism are arranged in the ring groove, a cover plate is arranged on the top surface of the outer ring piece, a through hole is arranged on the top surface of the cover plate, the through hole is connected with the correction mechanism by sliding, and an electric push cylinder is arranged on the outer ring piece to drive the correction mechanism to lift.

[0006] Preferably, a fixed plate is arranged on the inner wall of the ring groove, an adjusting hole is arranged on the fixed plate, the correction mechanism is rotatably connected in the adjusting hole, and a lifting hole corresponding to the adjusting hole is arranged on the bottom surface of the ring groove, the telescopic end of the electric push cylinder is slidably connected in the lifting hole, and the telescopic end of the electric push cylinder is connected with the correction mechanism.

[0007] Preferably, the correction mechanism comprises a correction gear, a connecting rod and a correction block, the connecting rod is rotatably connected in the adjusting hole, and a clockwork is arranged in the adjusting hole and connected with the connecting rod; a correction gear is arranged on the bottom surface of the connecting rod, the correction gear is meshed with the driving mechanism, a correction block is arranged on the top surface of the connecting rod, the correction block is a cam structure, and the correction block is matched with the through hole.

[0008] Preferably, the top surface of the correction block is provided with an inclined surface.

[0009] Preferably, the driving mechanism includes a rotating component, a driving motor, and a driving gear. The rotating component is an annular component, and its bottom surface is provided with a groove. A positioning post adapted to the groove is provided on the inner bottom surface of the groove. Multiple sets of positioning posts are arranged in annular array. The inner wall of the rotating component is provided with an inner ring tooth segment, which meshes with the straightening gear. An outer ring tooth segment is provided on the outer wall of the rotating component. A driving hole is provided in the annular groove. The driving motor is suspended on the bottom surface of the outer ring component, and the driving shaft of the outer ring component passes through the driving hole. A driving gear is provided on the driving shaft, and the driving gear meshes with the outer ring tooth segment on the outer wall of the rotating component.

[0010] In summary, the technical effects and advantages of this utility model are as follows:

[0011] This invention integrates a straightening mechanism and a drive mechanism through an outer ring component. An electric push cylinder can precisely control the lifting and lowering of the straightening block. In conjunction with a drive motor, it drives the rotating component and the inner ring gear segment to achieve the sequential meshing drive of four sets of straightening gears. This allows the straightening block to dynamically center and adjust the material plate, completely replacing manual straightening and significantly improving positioning accuracy and operational safety.

[0012] In this invention, the straightening block adopts a cam structure and is provided with an inclined top surface. When the straightening block is partially covered by the straightening block, the inclined surface guides the material plate to slide into the central area, which enhances the flexible straightening effect on the offset material plate and avoids material deformation caused by rigid contact.

[0013] In this invention, the outer ring component integrates a ring groove, a cover plate, and a lifting hole. The straightening mechanism and the drive mechanism are arranged in layers, which not only achieves functional integration but also facilitates maintenance. The rotating component cooperates with the positioning column through a sliding groove to ensure rotational stability. At the same time, the inner ring tooth section adopts a quarter circumference design to achieve independent drive of a single set of straightening gears and reduce energy consumption. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of a partial explosion structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the outer ring structure of this utility model;

[0018] Figure 4This is a schematic diagram of the drive mechanism structure of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the rotating component of this utility model.

[0020] In the diagram: 1. Frame; 2. Hydraulic cylinder; 3. Bottom mold; 4. Outer ring component; 40. Ring groove; 41. Lifting hole; 42. Drive hole; 5. Fixing plate; 50. Adjustment hole; 6. Cover plate; 60. Through hole; 7. Rotating component; 70. Slide groove; 71. Outer ring tooth segment; 72. Inner ring tooth segment; 8. Drive motor; 9. Drive gear; 10. Electric push cylinder; 11. Straightening gear; 12. Connecting rod; 13. Straightening block; 14. Positioning column. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Reference Figures 1-5 The spherical head cold pressing mold shown includes a frame 1, a hydraulic cylinder 2, a top mold, and a bottom mold 3. The hydraulic cylinder 2 is mounted on the frame 1, with its telescopic end passing through the top of the frame 1. A top mold is mounted on the telescopic end of the hydraulic cylinder 2, and a matching bottom mold 3 is mounted below the top mold. To facilitate the centering adjustment of the material plate placed on the bottom mold 3, an annular outer ring 4 is provided on the outer wall of the bottom mold 3. A straightening mechanism and a driving mechanism are provided on the outer ring 4. The straightening mechanism can straighten the material plate placed on the bottom mold 3, avoiding the need for workers to straighten the material plate manually with hand tools. The driving mechanism is used to drive the straightening mechanism.

[0023] As one embodiment of this example, the outer ring 4 has an annular groove 40 on its top surface and a cover plate 6 on the top of the annular groove 40. The cover plate 6 has four sets of annular array perforations 60 for the straightening mechanism to lift and lower. The bottom surface of the outer ring 4 has a lifting hole 41 that connects to the inside of the annular groove 40. Below the lifting hole 41, there is an electric push cylinder 10. The telescopic end of the electric push cylinder 10 passes through the lifting hole 41 and is connected to the straightening mechanism. The inner bottom surface of the annular groove 40 also has a drive hole 42 that connects to the outside.

[0024] As one embodiment of this example, the correction mechanism has a fixing plate 5 on the inner wall of the annular groove 40, and an adjustment hole 50 on the fixing plate 5. The fixing plates 5 are arranged in a circular array, and a connecting rod 12 is slidably connected in the adjustment hole 50. A correction gear 11 is provided at the bottom of the connecting rod 12 and is coaxial with it. A correction block 13 with a cam structure is provided at the top of the connecting rod 12. The shape of the correction block 13 is adapted to the through hole 60. In the non-use state, the correction block 13 is stored in the through hole 60, and the telescopic end of the electric push cylinder 10 is rotatably connected to the correction gear 11. When in use, the correction gear 11 is driven to rotate by the drive mechanism. In order to automatically reset the connecting rod 12, a spring connected to the connecting rod 12 is provided in the adjustment hole 50.

[0025] When the spring fails to function properly, the drive mechanism can be reversed to reset the correction mechanism.

[0026] As one embodiment of this invention, the driving mechanism is as follows: a drive motor 8 is provided on the bottom surface of the outer ring 4, and the drive shaft of the drive motor 8 passes through the drive hole 42. A coaxial drive gear 9 is provided on the drive shaft. Multiple sets of annular array positioning posts 14 are provided on the inner top surface of the annular groove 40. The bottom surface of the rotating part 7 is provided with a sliding groove 70, which is adapted to the positioning posts 14. The rotating part 7 slides on the positioning posts 14. An outer ring tooth segment 71 is provided on the outer wall of the rotating part 7. The outer ring tooth segment 71 meshes with the drive gear 9. The rotating part 7 is rotated by the drive motor 8. The rotating part 7 can drive the inner ring tooth segment 72 provided on the inner wall to mesh with the straightening gear 11, so that the straightening gear 11 rotates. In order to drive a set of straightening gears 11 separately, the inner ring tooth segment 72 is one-quarter of the length of the rotating part 7.

[0027] The working principle of this utility model is as follows: The material plate is placed on the top surface of the bottom mold 3. Then, the electric push cylinder 10 at the bottom of the outer ring 4 is activated. The telescopic end of the electric push cylinder 10 slides within the lifting hole 41, pushing the upper straightening gear 11 upwards. During the upward movement of the straightening gear 11, the connecting rod 12 slides within the adjustment hole 50 of the fixed plate 5, causing the straightening block 13 to pass through the through hole 60 on the cover plate 6. Then, the drive motor 8 is activated. The drive shaft of the drive motor 8 rotates within the drive hole 42, driving the drive gear 9 to rotate within the ring groove 40. The drive gear 9 drives the outer ring tooth segment 71 that meshes with it, thereby driving the rotating part 7 to rotate in the ring groove 40. The rotating part 7 slides on the positioning post 14 through the sliding groove 70 on the bottom surface. During the rotation of the rotating part 7, the inner ring tooth segment 72 provided on the inner wall drives the four sets of straightening gears 11 to rotate in sequence. Through the structure of the straightening block 13, the material plate that has been misaligned can be centered and corrected. After the spring provided in the adjustment hole 50 separates from the straightening gear 11, it will automatically reset the connecting rod 12.

[0028] Then, by activating the hydraulic cylinder 2 on the frame 1, the hydraulic cylinder 2 drives the top mold to move downward, and punches the material plate above the bottom mold 3.

[0029] By using the inclined surface on the top surface of the straightening block 13, when the material plate is located above the inclined surface of the straightening block 13 during the straightening operation, it can be assisted in centering the material plate.

[0030] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0031] Components not described in detail in this article are existing technologies.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold pressing mold for a spherical head, comprising a frame (1), a hydraulic cylinder (2), a top mold, and a bottom mold (3), wherein the top surface of the frame (1) is provided with the hydraulic cylinder (2), the bottom mold (3) is provided below the frame (1), and the top mold, which is controlled to rise and fall by the hydraulic cylinder (2), is provided above the bottom mold (3), characterized in that: A set of outer ring parts (4) are installed on the outer wall of the bottom mold (3). The top surface of the outer ring parts (4) is provided with a ring groove (40). A correction mechanism and a driving mechanism are provided in the ring groove (40). A cover plate (6) is provided on the top surface of the outer ring parts (4). A through hole (60) is provided on the top surface of the cover plate (6). The through hole (60) is slidably connected to the correction mechanism. An electric push cylinder (10) that can drive the correction mechanism to rise and fall is provided on the outer ring parts (4).

2. The spherical head cold pressing mold according to claim 1, characterized in that: A fixing plate (5) is provided on the inner wall of the annular groove (40), and an adjustment hole (50) is provided on the fixing plate (5). The correction mechanism is rotatably connected in the adjustment hole (50), and a lifting hole (41) corresponding to the position between the adjustment hole (50) is provided on the bottom surface of the annular groove (40). The telescopic end of the electric push cylinder (10) is slidably connected in the lifting hole (41), and the telescopic end of the electric push cylinder (10) is connected to the correction mechanism.

3. The spherical head cold pressing mold according to claim 2, characterized in that: The correction mechanism includes a correction gear (11), a connecting rod (12), and a correction block (13). The connecting rod (12) is rotatably connected to the adjustment hole (50), and a spring connected to the connecting rod (12) is provided in the adjustment hole (50). The correction gear (11) is provided on the bottom surface of the connecting rod (12), and the correction gear (11) meshes with the drive mechanism. The correction block (13) is provided on the top surface of the connecting rod (12). The correction block (13) is a cam structure, and the correction block (13) is adapted to the through hole (60).

4. The spherical head cold pressing mold according to claim 3, characterized in that: The top surface of the correction block (13) is provided with an inclined surface.

5. A cold pressing mold for a spherical head according to claim 3, characterized in that: The driving mechanism includes a rotating part (7), a driving motor (8), and a driving gear (9). The rotating part (7) is an annular part, and the bottom surface of the rotating part (7) is provided with a groove (70). The inner bottom surface of the annular groove (40) is provided with a positioning post (14) that is adapted to the groove (70). The positioning post (14) is arranged in a ring array with multiple sets. The inner wall of the rotating part (7) is provided with an inner ring tooth segment (72). The inner ring tooth segment (72) meshes with the straightening gear (11). The outer wall of the rotating part (7) is provided with an outer ring tooth segment (71). The annular groove (40) is provided with a driving hole (42). The driving motor (8) is suspended on the bottom surface of the outer ring part (4), and the driving shaft of the outer ring part (4) passes through the driving hole (42). The driving gear (9) is provided on the driving shaft. The driving gear (9) meshes with the outer ring tooth segment (71) on the outer wall of the rotating part (7).

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