Spherical end socket interior grinding device

Abstract

The invention discloses a spherical end socket interior grinding device which comprises a fixing table, a hemispherical station groove is formed in the fixing table, an air suction fixing assembly is arranged in the station groove, a spherical end socket with the matched size is adsorbed and fixed in the station groove through the air suction fixing assembly, lifting mechanisms are further arranged on the two sides of a workbench, and the lifting mechanisms are arranged on the two sides of the workbench. A lifting plate is installed between main shafts of the lifting mechanisms on the two sides, a rotating mechanism is further installed on the lifting plate, a main shaft of the rotating mechanism extends downwards, and a hemispherical grinding head is installed at the shaft end of the rotating mechanism. According to the device, the hemispherical grinding head with the matched size is adopted for grinding the interior of the spherical end socket, the interior grinding work of the spherical end socket can be achieved at a time, the interior can be very smooth, and the working efficiency and the working quality are effectively improved; the air suction mechanism is adopted for achieving adsorption and fixation of the spherical end socket in the station groove, and the structural arrangement is reasonable.

Description

Technical Field

[0001] The present invention relates to the technical field of heads of pressure vessels, and more specifically to an internal grinding device for a spherical head. Background Art

[0002] In the prior art, a spherical head is a head formed by the spherical crown part of a spherical shell, and is divided into two types: a hemispherical head and a non-flanged spherical head; the spherical head has excellent mechanical properties, good corrosion resistance and compressive capacity, and is commonly used in the petrochemical industry, the energy industry, the aerospace industry, and at the same time, it can also be widely used in various pressure vessels and pipe end seals in industries such as electronics, medicine, light textile, food, machinery, and construction, such as the high-pressure sterilization kettle in the food industry and the sealed head in the vacuum coating equipment in the electronics industry.

[0003] Generally, when a spherical head is used as a pressure vessel, its inner end needs to bear a great deal of pressure. Therefore, the inner end face of the spherical head needs to be very flat to reduce the pressure. Thus, it is necessary to grind the inner end face of the spherical head. There are many kinds of grinding mechanisms for spherical heads in the prior art. For example: "A head grinding device" disclosed in Publication (Announcement) No.: CN214980038U; for example: "A head sealing and grinding mechanism" disclosed in Publication (Announcement) No.: CN206653213U; for example: "A hemispherical head grinding device" disclosed in Publication (Announcement) No.: CN209425164U, etc.

[0004] Most of the grinding devices for spherical heads in the above technical solutions use relatively small grinding heads to enter the inside of the head for grinding. This grinding method results in a long working time and cannot ensure the flatness of the inside of the head, which greatly affects the final grinding quality.

[0005] In addition, when the head is specifically ground, the feeding, fixing, and discharging of the head are all very important, especially the fixing and discharging processes of the head during grinding. In the prior art, the fixing of the head is usually achieved by a single mechanical pressing method, which makes the subsequent disassembly and discharging of the head very difficult.

[0006] Therefore, in order to solve the above problems, it is necessary to develop an internal grinding device for a spherical head with a reasonable structure and effectively improving product quality. Summary of the Invention

[0007] The object of the present invention is to provide an internal grinding device for a spherical head in view of the deficiencies of the prior art; its technical solution is as follows:

[0008] A spherical head internal grinding device, including a fixed table, on which a hemispherical working groove is provided. An air suction fixing component is arranged in the working groove, and a spherical head with a suitable size is adsorbed and fixed in the working groove through the air suction fixing component. Lifting mechanisms are also arranged on both sides of the workbench. A lifting plate is installed between the main shafts of the two lifting mechanisms on both sides. A rotating mechanism is installed on the lifting plate. The main shaft of the rotating mechanism extends downward, and a hemispherical grinding head is installed at the shaft end. The position of the grinding head corresponds to the position of the lower working groove, and the size of the grinding head is adapted to the size of the spherical head in the lower working groove. Driven by the lifting mechanism, the grinding head descends into the interior of the spherical head to grind the inner end face.

[0009] A plurality of inner grooves are also provided on the upper end face of the fixed table. The inner grooves are arranged at the upper edge position of the working groove and are correspondingly communicated with the working groove. When the spherical head is placed in the working groove, the upper end part of the spherical head is exposed in the inner grooves.

[0010] A telescopic rod extending downward is also installed on the lifting plate. A pressing mechanism is installed at the end of the telescopic rod. The pressing mechanism is arranged horizontally, and the position of the pressing mechanism corresponds to the position of the inner groove. A pressing plate is installed at the shaft end of the main shaft of the pressing mechanism.

[0011] After the lifting plate moves downward, the grinding head correspondingly descends into the interior of the spherical head. Correspondingly, the telescopic rod moves downward correspondingly, and the pressing mechanism correspondingly enters the inner groove. After the pressing mechanism is started, it drives the pressing plate to press the upper end part of the spherical head inward.

[0012] Furthermore, the air suction fixing component includes an air suction mechanism arranged in the fixed table and an air suction pipe embedded in the fixed table and connected to the air suction mechanism. A suction cup connected to the air suction pipe is arranged in the working groove. After the spherical head is placed in the working groove, it is correspondingly fixed in the working groove by the suction force of the air suction mechanism.

[0013] Furthermore, the suction cups are embedded in the working groove and are arranged in a circular array in the working groove.

[0014] Furthermore, an electromagnetic valve is installed on each air suction pipe.

[0015] Furthermore, three inner grooves on the fixed table are arranged at equal intervals. Correspondingly, three telescopic rods and pressing mechanisms are provided.

[0016] Furthermore, the telescopic rod is at least a two-section sleeve rod structure, and it correspondingly completes self-contraction during the downward movement of the lifting plate.

[0017] Furthermore, a soft pad is also provided on the inner end face of the pressing plate to correspondingly press the upper end part of the spherical head through the soft pad.

[0018] Beneficial effects: The present invention has the following beneficial effects:

[0019] 1) In the present invention, a hemispherical grinding head with a size adaptation is used to grind the inside of the spherical head, which can realize the internal grinding work of the spherical head at one time, and the inside will be very flat, effectively improving the work efficiency and work quality;

[0020] 2) In the present invention, a suction mechanism is used to realize the adsorption and fixation of the spherical head in the working position groove, and the structure is reasonably arranged;

[0021] 3) In the present invention, a pressing mechanism with integral lifting is also provided to cooperate with the suction mechanism to realize the pressing and fixation of the spherical head in the working position groove, making the position of the spherical head more fixed and the structure more stable.

[0022] 4) In the present invention, the pressing mechanism also has the function of taking out the spherical head from the working position groove. After the grinding is completed, the spherical head can be taken out of the working position groove by using the pressing force along with the lifting plate, and the structure is ingeniously and reasonably arranged;

[0023] 5) In the present invention, the position of the inner groove is ingeniously set, so that the pressing structure can be correspondingly arranged in the inner groove after lifting from top to bottom, thereby realizing the pressing, fixation and lifting and taking out of the spherical head. Description of the drawings

[0024] Figure 1 It is a structural diagram of the present invention;

[0025] Figure 2 It is a working state diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of blanking using a pressing plate in the present invention;

[0027] Figure 4 is Figure 3 view A-A in;

[0028] Among them, fixed table 1; working position groove 2; spherical head 3; lifting mechanism 4; lifting plate 5; rotating mechanism 6; grinding head 7; inner groove 8; telescopic rod 9; pressing mechanism 10; pressing plate 11. Specific embodiments

[0029] The following combines the drawings and specific embodiments to further clarify the present invention. These embodiments are implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0030] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, a polishing device for the inside of a spherical head includes a fixed table 1. A hemispherical working groove 2 is provided on the fixed table 1. An air suction fixing component is arranged in the working groove 2. The spherical head 3 with a suitable size is adsorbed and fixed in the working groove 2 by the air suction fixing component. Lifting mechanisms 4 are also arranged on both sides of the workbench. A lifting plate 5 is installed between the main shafts of the two lifting mechanisms 4 on both sides. A rotating mechanism 6 is installed on the lifting plate 5. The main shaft of the rotating mechanism 6 extends downward, and a hemispherical polishing head 7 is installed at the shaft end. The position of the polishing head 7 corresponds to the position of the working groove 2 below, and the size of the polishing head 7 is adapted to the size of the spherical head 3 in the working groove 2 below. Driven by the lifting mechanism 4, the polishing head 7 descends into the inside of the spherical head 3 to polish the inner end face.

[0031] Several inner grooves 8 are also provided on the upper end face of the fixed table 1. The inner grooves 8 are arranged at the upper edge position of the working groove 2 and are correspondingly communicated with the working groove 2. When the spherical head 3 is placed in the working groove 2, the upper end part of the spherical head 3 is exposed in the inner grooves 8.

[0032] A downwardly extending telescopic rod 9 is also installed on the lifting plate 5. A pressing mechanism 10 is installed at the end of the telescopic rod 9. The pressing mechanism 10 is arranged horizontally, and the position of the pressing mechanism 10 corresponds to the position of the inner groove 8. A pressing plate 11 is also installed at the shaft end of the main shaft of the pressing mechanism 10.

[0033] After the lifting plate 5 moves downward, the polishing head 7 correspondingly descends into the inside of the spherical head 3. Correspondingly, the telescopic rod 9 moves downward correspondingly, and the pressing mechanism 10 correspondingly enters into the inner groove 8. After the pressing mechanism 10 is started, it drives the pressing plate 11 to press the upper end part of the spherical head 3 inward.

[0034] The air suction fixing component includes an air suction mechanism 12 arranged in the fixed table 1, and an air suction pipe 13 embedded in the fixed table 1 and connected to the air suction mechanism 12. A suction cup 14 connected to the air suction pipe 13 is arranged in the working groove 2. After the spherical head 3 is placed in the working groove 2, it is correspondingly fixed in the working groove 2 by the suction force of the air suction mechanism 12.

[0035] The suction cup 14 is embedded in the working groove 2 and is arranged in a circular array in the working groove 2. An electromagnetic valve is installed on each air suction pipe 13.

[0036] There are three inner grooves 8 on the fixed table 1 that are evenly spaced. Correspondingly, there are three telescopic rods 9 and pressing mechanisms 10.

[0037] The telescopic rod 9 is at least a two-stage sleeve rod structure. During the downward movement of the lifting plate 5, it correspondingly completes self-contraction. A soft pad is also arranged on the inner end face of the pressing plate 11 to correspondingly press the upper end part of the spherical head 3 through the soft pad.

[0038] AsFigures 1 to 3 For the specific working process of the present invention, as Figure 1 As shown, firstly, a spherical head of suitable size is placed in the work station slot, and the grinding head and the clamping mechanism on the lifting plate are both located above. After the spherical head is placed in the work station slot, negative pressure can be generated by turning on the suction mechanism, and then the spherical head is fixed in the work station slot by the suction cup in the work station slot, thereby achieving the fixation of the spherical head.

[0039] Afterwards Figure 2 As shown, the lifting mechanism controls the lifting plate to descend, which will drive the grinding head to enter the interior of the spherical head, and at the same time, the rotating motor is turned on to drive the grinding head to rotate, so as to grind the interior of the spherical head; and in the process of descending, the clamping mechanism moves downward following the telescopic rod. When the clamping mechanism enters the inner groove, the grinding head may not have entered the interior of the spherical head, so the lifting plate continues to move downward, and since the telescopic rod has a telescopic function, the telescopic rod continues to move downward following the lifting plate until the grinding head enters the interior of the spherical head.

[0040] At this time, the clamping mechanism is located in the inner groove, which is connected to the work station groove, and the size of the work station groove is adapted to the size of the spherical head. The entire spherical head is correspondingly embedded in the work station groove, and due to the setting of the inner groove next to it, part of the upper end of the spherical head is exposed from the inner groove, and the clamping mechanism is located in the inner groove. Turning on the clamping mechanism drives the pressure plate inward to correspondingly clamp the upper end of the spherical head, thereby cooperating with the suction structure to fix the spherical head in the work station groove, and then turning on the rotating mechanism to drive the grinding head to grind the inside of the spherical head. Since the size of the grinding head is adapted to the internal size of the spherical head, one-time grinding can be completed, thereby improving work efficiency.

[0041] After grinding, since the spherical head is integrally embedded in the work slot, it is difficult to remove the spherical head from the work slot by manpower; however, the device can easily remove the spherical head through the clamping mechanism.

[0042] After grinding is completed, the suction mechanism is stopped first to eliminate the suction force, and then the lifting mechanism controls the lifting plate to move upward. At this time, the lifting plate will first drive the rotating mechanism and the grinding head to leave the inside of the spherical head and move upward, and then drive the telescopic rod to move upward. The telescopic rod itself has a telescopic function. When the telescopic rod reaches its limit, it will drive the clamping mechanism to move upward, and the pressure plate of the clamping mechanism presses the spherical head inward. Therefore, the spherical head can be taken out of the work station slot through the clamping mechanism, which can achieve both the clamping of the spherical head and the removal of the spherical head from the work station slot. The structural setting is very clever.

[0043] The above specific implementation is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A spherical head internal grinding device, characterized in that: The invention comprises a fixed table (1), wherein a hemispherical workstation slot (2) is arranged on the fixed table (1), wherein a suction fixing component is arranged in the workstation slot (2), and a spherical head (3) of suitable size is adsorbed and fixed in the workstation slot (2) by the suction fixing component. A lifting mechanism (4) is also arranged on both sides of the workstation, and a lifting plate (5) is installed between the main shafts of the lifting mechanisms (4) on both sides, and a rotating mechanism (6) is installed on the lifting plate (5). The main shaft of the rotating mechanism (6) extends downward, and a hemispherical grinding head (7) is installed at the end of the shaft. The position of the grinding head (7) corresponds to the position of the lower workstation slot (2), and the size of the grinding head (7) is suitable for the size of the spherical head (3) in the lower workstation slot (2). Driven by the lifting mechanism (4), the grinding head (7) descends to the inside of the spherical head (3) to grind the internal end surface. The upper end surface of the fixed platform (1) is also provided with a plurality of inner grooves (8), the inner grooves (8) being arranged at the upper edge of the work station groove (2) and correspondingly connected to the work station groove (2), and when the spherical head (3) is placed in the work station groove (2), the upper end of the spherical head (3) is exposed in the inner groove (8); The lifting plate (5) is also provided with a telescopic rod (9) extending downward, and a clamping mechanism (10) is also provided at the end of the telescopic rod (9). The clamping mechanism (10) is arranged transversely, and the position of the clamping mechanism (10) corresponds to the position of the inner groove (8). A pressing plate (11) is also provided at the shaft end of the main shaft of the clamping mechanism (10); After the lifting plate (5) moves downward, the grinding head (7) correspondingly descends to the inside of the spherical head (3), and accordingly, the telescopic rod (9) moves downward, and the clamping mechanism (10) correspondingly enters the inner groove (8), and after the clamping mechanism (10) is started, it drives the pressing plate (11) to press the upper end of the spherical head (3) inward.

2. A spherical head internal grinding device according to claim 1, characterized in that: The suction fixing assembly comprises a suction mechanism (12) arranged in a fixing platform (1), and a suction duct (13) embedded in the fixing platform (1) and connected to the suction mechanism (12), while a suction cup (14) connected to the suction duct (13) is arranged in the work station slot (2); after the spherical head (3) is placed in the work station slot (2), it is fixed in the work station slot (2) by the suction force of the suction mechanism (12).

3. A spherical head internal grinding device according to claim 2, characterized in that: The suction cups (14) are embedded in the work station slot (2) and are arranged in a circular array in the work station slot (2).

4. A spherical head internal grinding device according to claim 3, characterized in that: Each air suction duct (13) is also equipped with a solenoid valve.

5. The internal grinding device of a spherical head according to claim 1 is characterized in that: The fixing platform (1) is provided with three inner grooves (8) at even intervals, and correspondingly, the telescopic rods (9) and the clamping mechanisms (10) are provided with three in total.

6. The internal grinding device of a spherical head according to claim 5 is characterized in that: The telescopic rod (9) is configured as a sleeve-type rod structure with at least two sections, and self-contraction is completed accordingly during the downward movement of the lifting plate (5).

7. A spherical head internal grinding device according to claim 6, characterized in that: The inner end surface of the pressure plate (11) is also provided with a soft pad, through which the upper end of the spherical head (3) is pressed accordingly.

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