Clamping device for valve welding

Abstract

The utility model belongs to the technical field of valve clamping, and particularly relates to a clamping device for valve welding, which comprises a base, a fixed seat, a split seat, a movable plate, a locking component and a positioning seat, the fixed seat is arranged on the base, and the split seat capable of being close to and far away from the fixed seat is arranged on one side of the fixed seat; the movable plate is arranged on the fixed seat in a sliding mode in the clamping direction, a clamping head is arranged at the end, close to the split seat, of the movable plate, and a clamping head is also arranged on the side wall, close to one side of the fixed seat, of the split seat; the locking assembly is used for locking or releasing the movable plate and the fixed seat, the movable plate cannot slide relative to the fixed seat in the locking state, and the movable plate can slide relative to the fixed seat in the releasing state; the positioning seat is arranged between the fixed seat and the split seat, and a valve to be machined can be placed on the positioning seat; compared with the prior art, the clamping device disclosed by the utility model has the advantages that the valve can be primarily positioned and then clamped, so that the labor intensity of workers is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve clamping, and particularly relates to a clamping device for valve welding. Background Art

[0002] A valve is a device used to control the flow direction, flow rate, and pressure of fluids (liquids, gases, etc.) and is very common in various industrial applications; valve welding is an important technology in the process of manufacturing or repairing valves; before valve welding, it is necessary to clamp the valve to ensure its stability during the welding process.

[0003] Chinese Patent with publication number CN219465255U discloses a clamping structure for valve welding and processing, including a workbench and a first mounting frame fixedly connected to the top of the workbench. An adjusting mechanism extending into the first mounting frame is arranged on the top of the workbench, and a clamping mechanism is arranged on the top of the first mounting frame. The adjusting mechanism includes a first motor fixedly connected to the top of the workbench. A bidirectional adjusting lead screw extending into the first mounting frame is fixedly connected to the output shaft of the first motor. A first thread sleeve is externally threadedly connected to the bidirectional adjusting lead screw, and a sliding block extending to the top of the first mounting frame is fixedly connected to the outside of the first thread sleeve. This technology drives the bidirectional adjusting lead screw to rotate by setting the first motor, and then drives the first thread sleeve and the support frame to displace through the rotation of the bidirectional adjusting lead screw, so that the two clamping mechanisms displace relatively or towards each other, so as to adjust the distance between the clamping plates according to the needs of the staff.

[0004] However, it is found in actual use that when this clamping structure clamps the valve, the two ends of the valve are clamped by the two clamping plates moving towards each other. However, it is difficult to automatically position the valve during the clamping process, and the worker needs to hold the valve by hand until the two clamping plates clamp the two ends of the valve. This results in the worker needing to hold the valve for a period of time. During the batch valve welding and processing, each valve needs to be clamped, and the labor intensity of the worker is relatively high. Therefore, this clamping structure still needs to be improved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a clamping device for valve welding aiming at the above existing technical problems. This clamping device can first preliminarily position the valve and then clamp the valve, with relatively low labor intensity for the worker.

[0006] In view of this, the utility model provides a clamping device for valve welding, including:

[0007] A base, on which a fixed seat is provided, and a split seat that can approach and move away from the fixed seat is provided on one side of the fixed seat;

[0008] The movable plate is slidably arranged on the fixed seat along the clamping direction. A clamping head is provided at one end of the movable plate close to the split seat, and a clamping head is also provided on the side wall of the split seat close to the fixed seat.

[0009] The locking assembly is used to lock or release the movable plate and the fixed seat. In the locked state, the movable plate cannot slide relative to the fixed seat, and in the released state, the movable plate can slide relative to the fixed seat.

[0010] The positioning seat is arranged between the fixed seat and the split seat, and the valve to be processed can be placed on the positioning seat.

[0011] In this technical solution, first place the valve to be processed on the positioning seat, control the locking assembly to adjust the movable plate to the released state, slide the movable plate relative to the fixed seat so that the clamping head on the movable plate first clamps one end of the valve to achieve the preliminary positioning of the valve, then control the locking assembly to adjust the movable plate to the locked state, and then control the split seat to approach the fixed seat and make the clamping head on the split seat clamp the other end of the valve to complete the clamping of the valve.

[0012] In the above technical solution, further, a limiting through groove is opened on the fixed seat along the clamping direction, and the movable plate is slidably connected with the limiting through groove.

[0013] In the above technical solution, further, the locking assembly includes:

[0014] A plurality of locking grooves are spaced along the length direction of the movable plate and opened on the movable plate;

[0015] The fixing plate is arranged on the fixed seat;

[0016] The locking seat is arranged on the side of the fixing plate close to the locking groove. A plurality of locking blocks are provided on the locking seat, and the locking blocks can be inserted into the locking grooves. The plurality of locking blocks and these locking grooves are distributed at the same interval;

[0017] The locking cylinder is arranged on the fixing plate and is used to drive the locking seat to approach and move away from the locking groove.

[0018] In the above technical solution, further, the positioning seat includes a mounting seat, a lifting seat, and a lifting member. The mounting seat is arranged on the base, the lifting seat is arranged above the mounting seat, and the lifting seat and the mounting seat are connected by the lifting member. The lifting member can adjust the vertical position of the lifting seat relative to the mounting seat.

[0019] In the above technical solution, further, a positioning strip is provided on the upper surface of the lifting seat.

[0020] In the above technical solution, further, a translation groove is opened on the base, the lower end of the split seat is slidably arranged in the translation groove, and a push member for driving the split seat to approach and move away from the fixed seat is arranged in the translation groove.

[0021] In the above technical solution, further, the pushing member includes a screw rod and a hand wheel. The screw rod is horizontally rotatably arranged in the translation groove. One end of the screw rod penetrates through the side wall of the translation groove and extends to the outside of the base, and a hand wheel is connected to the end of the screw rod. A threaded hole threadedly connected to the screw rod is opened at the lower end of the split seat.

[0022] In the above technical solution, further, the clamping head includes a C-shaped frame body, a clamping plate, and a clamping cylinder. The clamping plate is movably arranged in the C-shaped frame body, and the clamping cylinder is arranged on the C-shaped frame body for driving the clamping plate to approach and move away from one side wall of the C-shaped frame body.

[0023] The beneficial effects of the present utility model are as follows:

[0024] 1. Through the cooperation of the fixed seat, the split seat, the movable plate, the two clamping heads, the locking assembly, and the positioning seat, when clamping a valve, the valve can be initially positioned first and then clamped as a whole, which can reduce the labor intensity of workers, relieve the burden on workers, and thus improve the processing efficiency of the valve.

[0025] 2. By designing the locking assembly as the cooperation of multiple locking grooves, a fixing plate, a locking seat, multiple locking blocks, and a locking cylinder, when the multiple locking blocks are inserted into the corresponding locking grooves, the movable plate can be locked. When the locking blocks are withdrawn from the locking grooves, the movable plate can be released. The switching of the movable plate between the locked state and the released state is simple and the structure is stable.

[0026] 3. By designing the positioning seat as the cooperation of a mounting seat, a lifting seat, and a lifting member, the positioning seat can place valves of different specifications for positioning. In addition, if the height of the valve changes after one clamping head clamps one end of the valve compared with the unclamped state, the lifting seat can adjust the vertical position to adapt to the height change of the valve, making the process from the initial positioning of the valve to the final clamping more simple and accurate. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model in the first direction.

[0029] Figure 2 It is a three-dimensional structure schematic diagram of the present utility model in the second direction.

[0030] Figure 3 This is a front view structural schematic diagram of the present utility model.

[0031] Figure 4 This is a top view structural schematic diagram of the present utility model.

[0032] Figure 5 This is a structural schematic diagram of the movable plate and the clamping head in the present utility model.

[0033] The markings in the figure are indicated as:

[0034] 1. Base; 2. Fixed seat; 201. Limit through groove; 3. Split seat; 4. Movable plate; 5. Clamping head; 501. C-shaped frame; 502. Clamping plate; 503. Clamping cylinder; 6. Locking assembly; 601. Locking groove; 602. Fixed plate; 603. Locking seat; 604. Locking block; 605. Locking cylinder; 7. Positioning seat; 701. Mounting seat; 702. Lifting seat; 703. Lifting member; 704. Positioning bar; 801. Translation groove; 802. Screw; 803. Handwheel; 804. Screw hole; Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0037] Embodiment 1

[0038] As Figures 1 - 4 shown, this embodiment provides a clamping device for valve welding, including: base 1, fixed seat 2, split seat 3, movable plate 4, locking assembly 6, positioning seat 7,

[0039] A fixing base 2 is provided on the base 1. On one side of the fixing base 2, there is a split base 3 that can approach and move away from the fixing base 2. A translation groove 801 is formed on the base 1, and the lower end of the split base 3 is slidably arranged in the translation groove 801. A flat push member for driving the split base 3 to approach and move away from the fixing base 2 is arranged in the translation groove 801;

[0040] Please refer to Figure 2 , the flat push member includes a screw rod 802 and a hand wheel 803. The length direction of the screw rod 802 is the same as the sliding direction of the split base 3. The screw rod 802 is horizontally rotatably arranged in the translation groove 801 along the circumferential direction. One end of the screw rod 802 penetrates through the side wall of the translation groove 801 and extends to the outside of the base 1, and the hand wheel 803 is connected to the end of the screw rod 802. A threaded hole 804 threadedly connected to the screw rod 802 is formed at the lower end of the split base 3. When a worker applies a rotational force in the circumferential direction to the hand wheel 803, the screw rod 802 can be driven to rotate. During the rotation of the screw rod 802, the split base 3 is driven to horizontally move in the translation groove 801 to approach or move away from the fixing base 2 through the cooperation with the threaded hole 804. By changing the direction of the rotational force applied to the hand wheel 803, the moving direction of the split base 3 can be changed;

[0041] The movable plate 4 is slidably arranged on the fixing base 2 along the clamping direction. A clamping head 5 is provided at one end of the movable plate 4 close to the split base 3. A clamping head 5 is also provided on the side wall of the split base 3 close to the fixing base. One clamping head 5 can clamp one end of the valve, and the two clamping heads 5 cooperate to clamp the two ends of the valve respectively, thus completing the clamping of the valve;

[0042] The locking assembly 6 is used to lock or release the movable plate 4 and the fixing base 2. In the locked state, the movable plate 4 cannot slide relative to the fixing base 2. In the released state, the movable plate 4 can slide relative to the fixing base 2;

[0043] The positioning seat 7 is arranged between the fixing base 2 and the split base 3, and the valve to be processed can be placed on the positioning seat 7;

[0044] In this embodiment, first, the valve to be processed is placed on the positioning seat 7. The locking assembly 6 is controlled to adjust the movable plate 4 to the released state. The movable plate 4 is slid relative to the fixing base 2 so that the clamping head 5 on the movable plate 4 first clamps one end of the valve to realize the preliminary positioning of the valve. Then, the locking assembly 6 is controlled to adjust the movable plate 4 to the locked state. Next, the split base 3 is controlled to approach the fixing base 2, and the clamping head 5 on the split base 3 clamps the other end of the valve to complete the clamping of the valve. In this way, the labor intensity of workers can be reduced, the burden on workers can be alleviated, and thus the processing efficiency of the valve can be improved.

[0045] Embodiment 2

[0046] This embodiment provides a clamping device for valve welding. In addition to the technical solutions of the above embodiment, it also has the following technical features;

[0047] Please refer to Figure 1 or Figure 2 , a limiting through groove 201 is opened on the fixed seat 2 along the clamping direction, and the movable plate 4 is slidably connected to the limiting through groove 201;

[0048] Since the fixed seat 2 has a certain thickness in the opening direction of the limiting through groove 201, after the movable plate 4 is slidably connected to the limiting through groove 201, the limiting through groove 201 can play a role in limiting and guiding the sliding of the movable plate 4, so that the movable plate 4 can only move along the clamping direction; the clamping direction here can be understood as the direction in which the two clamping heads 5 approach and move away from each other.

[0049] Embodiment 3

[0050] This embodiment provides a clamping device for valve welding. In addition to the technical solutions of the above embodiment, it also discloses a structure of the locking assembly 6;

[0051] Please refer to Figure 3 , the locking assembly 6 includes: a plurality of locking grooves 601, a fixing plate 602, a locking seat 603, a plurality of locking blocks 604, and a locking cylinder 605,

[0052] A plurality of locking grooves 601 are opened on the movable plate 4 at intervals along the length direction of the movable plate 4, and the length direction of the movable plate 4 is the same as the clamping direction; the fixing plate 602 is arranged on the fixed seat 2;

[0053] The locking seat 603 is arranged on the side of the fixing plate 602 close to the locking groove 601. A plurality of locking blocks 604 are arranged on the locking seat 603. One locking block 604 can be inserted into one locking groove 601. The plurality of locking blocks 604 and these locking grooves 601 are distributed at the same interval, and the number of locking grooves 601 is more than the number of locking blocks 604;

[0054] The locking cylinder 605 is arranged on the fixing plate 602 and is used to drive the locking seat 603 to approach and move away from the locking groove 601;

[0055] In this embodiment, the locking groove 601 is formed on the upper surface of the movable plate 4. The locking seat 603 is located above the movable plate 4. The locking block 604 is provided on the bottom surface of the locking seat 603. The locking seat 603 is designed to move in the vertical direction. When the locking cylinder 605 drives the locking seat 603 to move downward, multiple locking blocks 604 on the bottom surface of the locking seat 603 can be engaged into the corresponding multiple locking grooves 601 to lock the movable plate 4 and the fixed seat 2. When the locking cylinder 605 drives the locking seat 603 to move upward, multiple locking blocks 604 on the bottom surface of the locking seat 603 can be withdrawn from the multiple locking grooves 601 to release the movable plate 4 and the fixed seat 2.

[0056] Embodiment 4

[0057] This embodiment provides a clamping device for valve welding. In addition to including the technical solutions of the above embodiment, a structure of the positioning seat 7 is also disclosed;

[0058] Please refer to Figure 3 , the positioning seat 7 includes a mounting seat 701, a lifting seat 702, and a lifting member 703. The mounting seat 701 is provided on the base 1. The lifting seat 702 is provided above the mounting seat 701. The lifting seat 702 and the mounting seat 701 are connected by the lifting member 703. The lifting member 703 can adjust the vertical position of the lifting seat 702 relative to the mounting seat 701;

[0059] The valve is placed on the upper surface of the lifting seat 702. To improve the stability of the valve when placed on the lifting seat 702, please refer to Figure 2 , a plurality of positioning bars 704 are provided on the upper surface of the lifting seat 702. The movement of the valve can be restricted by the positioning bars 704;

[0060] The lifting member 703 can be selected from a cylinder or the combination of a lead screw and a nut in the prior art. In this way, the vertical position of the lifting seat 702 can be adjusted, so that the positioning seat 7 can place valves of different specifications for positioning. In addition, if the height of the valve changes after one clamping head 5 clamps one end of the valve, for example, the whole valve moves upward a small distance after one end is clamped, the lifting seat 702 can adjust its vertical position to adapt to the height change of the valve, making the process from preliminary positioning to final clamping of the valve simpler and more accurate.

[0061] Embodiment 5

[0062] This embodiment provides a clamping device for valve welding. In addition to including the technical solutions of the above embodiment, a structure of the clamping head 5 is also disclosed;

[0063] Please refer to Figure 5, the clamping head 5 includes a C-shaped frame 501, a clamping plate 502, and a clamping cylinder 503. The C-shaped frame 501 is installed at the end of the movable plate 4, and the open end of the C-shaped frame 501 faces another clamping head 5. The clamping plate 502 is movably arranged in the C-shaped frame 501 to Figure 5 Taking the orientation sequence in Figure 5 as an example, in the initial state, the clamping plate 502 is close to the upper side wall of the C-shaped frame 501. The clamping cylinder 503 is arranged on the C-shaped frame 501 to drive the clamping plate 502 to approach and move away from the lower side wall of the C-shaped frame 501. A clamping space for the end of the valve to extend into is formed between the clamping plate 502 and the lower side wall of the C-shaped frame 501, and the clamping plate 502 and the lower side wall of the C-shaped frame 501 cooperate to clamp the end of the valve.

[0064] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A clamping device for valve welding, characterized in that: include: A base (1), wherein a fixing seat (2) is provided on the base (1), and a split seat (3) which can be moved closer to and farther from the fixing seat (2) is provided on one side of the fixing seat (2); A movable plate (4), the movable plate (4) being slidably arranged on the fixed seat (2) along a clamping direction, a clamping head (5) being arranged at one end of the movable plate (4) close to the split seat (3), and a clamping head (5) being also arranged on a side wall of the split seat (3) close to the fixed seat; A locking assembly (6), the locking assembly (6) being used to lock or release the movable plate (4) and the fixed seat (2); in the locked state, the movable plate (4) cannot slide relative to the fixed seat (2); in the released state, the movable plate (4) can slide relative to the fixed seat (2); A positioning seat (7), wherein the positioning seat (7) is arranged between the fixing seat (2) and the split seat (3), and a valve to be processed can be placed on the positioning seat (7).

2. A valve welding clamping device according to claim 1, characterized in that: A limiting through slot (201) is provided on the fixing seat (2) along the clamping direction, and the movable plate (4) is slidably connected to the limiting through slot (201).

3. A valve welding clamping device according to claim 2, characterized in that: The locking assembly (6) comprises: A plurality of locking grooves (601), wherein the plurality of locking grooves (601) are arranged on the movable plate (4) at intervals along the length direction of the movable plate (4); A fixing plate (602), the fixing plate (602) being arranged on the fixing seat (2); A locking seat (603), the locking seat (603) being arranged on a side of the fixing plate (602) close to the locking groove (601), the locking seat (603) being provided with a plurality of locking blocks (604), the locking blocks (604) being capable of being inserted into the locking groove (601), and the plurality of locking blocks (604) and the locking grooves (601) being distributed at the same intervals; A locking cylinder (605), wherein the locking cylinder (605) is disposed on the fixing plate (602) and is used to drive the locking seat (603) to move closer to and away from the locking groove (601).

4. A valve welding clamping device according to claim 1, characterized in that: The positioning seat (7) comprises a mounting seat (701), a lifting seat (702), and a lifting member (703); the mounting seat (701) is arranged on the base (1); the lifting seat (702) is arranged above the mounting seat (701); the lifting seat (702) and the mounting seat (701) are connected via the lifting member (703); and the lifting member (703) can adjust the vertical position of the lifting seat (702) relative to the mounting seat (701).

5. A valve welding clamping device according to claim 4, characterized in that: A positioning strip (704) is provided on the upper surface of the lifting seat (702).

6. A valve welding clamping device according to claim 1, characterized in that: The base (1) is provided with a translation groove (801), the lower end of the split seat (3) is slidably arranged in the translation groove (801), and the translation groove (801) is provided with a push piece for driving the split seat (3) to approach and move away from the fixed seat (2).

7. A valve welding clamping device according to claim 6, characterized in that: The push member comprises a screw rod (802) and a hand wheel (803); the screw rod (802) is arranged in the translation groove (801) for horizontal rotation; one end of the screw rod (802) passes through the side wall of the translation groove (801) and then extends to the outside of the base (1); and the hand wheel (803) is connected to the end of the screw rod (802); and a screw hole (804) threadedly connected to the screw rod (802) is provided at the lower end of the split seat (3).

8. A valve welding clamping device according to claim 1, characterized in that: The clamping head (5) comprises a C-shaped frame (501), a clamping plate (502), and a clamping cylinder (503); the clamping plate (502) is movably arranged in the C-shaped frame (501); and the clamping cylinder (503) is arranged on the C-shaped frame (501) and is used to drive the clamping plate (502) to approach and move away from a side wall of the C-shaped frame (501).

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