Machining and positioning clamp for shell of electromagnetic flowmeter

Abstract

The utility model relates to the technical field of positioning clamps, and discloses an electromagnetic flowmeter shell machining positioning clamp which comprises a base, a fixing column is fixedly connected to the inner bottom end of the base, a rotating plate is rotationally connected to the top end of the fixing column, and two connecting rods are rotationally connected to the top end of the rotating plate. The bottom end of the connecting rod is rotatably connected with a connecting block, the bottom end of the connecting block is fixedly connected with a moving plate, the top end of the moving plate is fixedly connected with two connecting blocks, the top ends of every two connecting blocks are fixedly connected with a containing plate, and a force applying plate is slidably connected to the interior of one side of each containing plate. According to the shell clamping device, the air cylinder is started to drive the containing plate so that the force application plate can move towards the two sides and make contact with the stress plate to clamp a shell, then under the elastic support of the first strong spring, the clamping uniformity of the shell is adjusted in a self-adaptive mode, and the situation that the shell deforms due to the fact that clamping force is not uniform is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for processing an electromagnetic flowmeter shell. Background Art

[0002] The electromagnetic flowmeter housing is one of the key components of the electromagnetic flowmeter. The housing of the electromagnetic flowmeter is usually made of ferromagnetic material. The selection of this material is mainly to isolate the interference of the external magnetic field and maintain the stability of the internal magnetic field, which is crucial for the accurate measurement of the electromagnetic flowmeter. It plays a role in protecting internal components and maintaining the overall structural stability of the instrument. The use of processing and positioning fixtures is to ensure the processing quality and accuracy of the housing during the production process, thereby ensuring the performance and reliability of the final product.

[0003] In the prior art, some electromagnetic flowmeter casing processing and positioning fixtures are usually used to clamp and fix the casing of the electromagnetic flowmeter. However, during the clamping process, high operating requirements are placed on the operation. Due to mechanical or operational errors, the clamping force may be uneven at different parts, resulting in excessive local force on the casing and deformation. Therefore, in view of the above shortcomings, a electromagnetic flowmeter casing processing and positioning fixture is proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an electromagnetic flowmeter housing processing positioning fixture, which aims to improve the problem of uneven clamping force in the prior art, resulting in deformation of the housing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The electromagnetic flowmeter housing processing positioning fixture comprises a base, the inner bottom end of the base is fixedly connected with a fixing column, the top of the fixing column is rotatably connected with a rotating plate, the top of the rotating plate is rotatably connected with two connecting rods, the bottom end of the connecting rod is rotatably connected with a connecting block, the bottom end of the connecting block is fixedly connected with a moving plate, the top of each two connecting blocks is fixedly connected with a accommodating plate, one side of the accommodating plate is internally slidably connected with a force applying plate, the top of the base is fixedly connected with two fixing plates, the inside of the fixing plate is slidably connected with a plurality of sliding rods, the outer sleeve of the sliding rod is provided with a strong spring, the outer fixed connection of the sliding rod is limited to a limit plate, the far sides of the plurality of sliding rods are fixedly connected with a baffle, the near sides of the plurality of sliding rods are fixedly connected with two force plates, and the inside of the fixing column is fixedly connected with a driving assembly;

[0007] As a further description of the above technical solution:

[0008] The inner wall of the top end of the accommodating plate is threadedly connected with two threaded rods, the outer sleeve of the threaded rod is provided with two strong springs, the bottom end of the threaded rod is rotatably connected with a stopper, the bottom end of the stopper is fixedly connected with a clamping rod, and the top end of the threaded rod is fixedly connected with a rotating disk;

[0009] As a further description of the above technical solution:

[0010] The driving assembly includes a cylinder, the outside of which is fixedly connected to the inside of the fixed column, and the driving end of the cylinder is fixedly connected to the left side of the movable plate on the right side;

[0011] As a further description of the above technical solution:

[0012] A plurality of long holes are formed on the top of the base, and the outer portion of the connecting block is slidably connected to the inner portion of the long holes;

[0013] As a further description of the above technical solution:

[0014] The interior of the base is fixedly connected to two support rods, the interior of the movable plate is slidably connected to the exterior of the support rods, and the exterior of the movable plate is slidably connected to the interior of the base;

[0015] As a further description of the above technical solution:

[0016] The outer portion of the limit plate is slidably connected to the inner portion of the fixed plate, and one side of the baffle plate is in contact with one side of the fixed plate;

[0017] As a further description of the above technical solution:

[0018] One end of the strong spring 1 is fixedly connected to one side of the limit plate, and the other end of the strong spring 1 is fixedly connected to one side of the inner side of the fixed plate;

[0019] As a further description of the above technical solution:

[0020] The outside of the stopper is slidably connected to the inside of the accommodating plate, and the outside of the bottom end of the engaging rod is engaged with the inside of one side of the force applying plate.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, the cylinder is started to drive the containing plate to move the force-applying plate to both sides, contact the force-bearing plate to clamp the shell, and then, under the elastic support of the strong spring, the clamping uniformity of the shell is adaptively adjusted to avoid uneven clamping force, which may cause deformation of the shell.

[0023] In the utility model, the locking rod is fixed and the force plate is limited by the threaded rod, and then the limit on the locking rod is moved by twisting the threaded rod, thereby canceling the limit on the force plate, thereby realizing rapid replacement of the force plate and reducing the time consumed in replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a positioning fixture for machining an electromagnetic flowmeter housing proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the base structure of the electromagnetic flowmeter housing processing positioning fixture proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the support rod structure of the electromagnetic flowmeter housing processing positioning fixture proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the fixing plate structure of the electromagnetic flowmeter housing processing positioning fixture proposed by the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the receiving plate of the electromagnetic flowmeter housing processing positioning fixture proposed by the utility model.

[0029] Legend:

[0030] 1. Base; 2. Fixed column; 3. Rotating plate; 4. Connecting rod; 5. Connecting block; 6. Moving plate; 7. Connecting block; 8. Accommodating plate; 9. Force plate; 10. Fixed plate; 11. Sliding rod; 12. Powerful spring 1; 13. Limiting plate; 14. Stop plate; 15. Long hole; 16. Force plate; 17. Support rod; 18. Cylinder; 19. Threaded rod; 20. Powerful spring 2; 21. Stop block; 22. Engaging rod; 23. Rotating plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3, The utility model provides an embodiment: an electromagnetic flowmeter housing processing positioning fixture, including a base 1, the base 1 is used as the basic structure of the entire fixture, providing stability and support, the inner bottom end of the base 1 is fixedly connected with a fixed column 2, and the top of the fixed column 2 is rotatably connected with a rotating plate 3. The fixed column 2 not only provides structural support, but also ensures the stability of the rotating plate 3 during operation, the top of the rotating plate 3 is rotatably connected with two connecting rods 4 to provide a connecting force, the bottom end of the connecting rod 4 is rotatably connected with a connecting block 5 to connect the force on the connecting rod 4, the bottom end of the connecting block 5 is fixedly connected with a moving plate 6, and the outer sliding connection of the moving plate 6 is connected to the inside of the base 1 to provide stable movement, the top of the moving plate 6 is fixedly connected with two connecting blocks 7, and the tops of each two connecting blocks 7 are fixedly connected with a receiving plate 8, and a force plate 9 is slidably connected to the inside of one side of the receiving plate 8 for applying pressure to the electromagnetic flowmeter housing placed on the receiving plate 8, thereby assisting in fixing the position of the housing and ensuring stability and accuracy during processing, the top of the base 1 is fixedly connected with two fixed plates 10, and the inside of the fixed plate 10 is slidably connected with a plurality of sliding rods 11 for providing additional support.

[0033] Reference Figure 1 , Figure 2 and Figure 4 The outer sleeve of the sliding rod 11 is provided with a strong spring 12 to provide elastic force. The outer fixed connection of the sliding rod 11 is used for limiting the position, ensuring the safety and stability of the operation. One end of the strong spring 12 is fixedly connected to one side of the limiting plate 13, and the other end of the strong spring 12 is fixedly connected to the inner side of the fixed plate 10. The outer side of the limiting plate 13 is slidably connected to the inner side of the fixed plate 10. The far sides of the multiple sliding rods 11 are fixedly connected with a baffle 14, and one side of the baffle 14 is in contact with one side of the fixed plate 10. The top of the base 1 is provided with a plurality of long holes 15, and the outer side of the connecting block 7 is slidably connected to the long holes. 15, such a design allows the connection block 7 to adjust its position within a certain range, providing the ability to adjust the position of the accommodating plate 8 to adapt to electromagnetic flowmeter housings of different sizes, and two force-bearing plates 16 are fixedly connected to the adjacent sides of the multiple sliding rods 11 for receiving and transmitting forces, such as the reaction force applied by the housing during processing, thereby enhancing the stability and impact resistance of the entire structure, and the interior of the base 1 is fixedly connected to two support rods 17, and the internal sliding connection of the movable plate 6 is connected to the outside of the support rods 17. This design not only ensures the stability and smooth movement of the movable plate 6, but also further enhances the mechanical strength and durability of the overall structure.

[0034] Reference Figure 3The interior of the fixed column 2 is fixedly connected with a driving assembly, and the driving assembly includes a cylinder 18 that provides a power source. The exterior of the cylinder 18 is fixedly connected to the interior of the fixed column 2, and the driving end of the cylinder 18 is fixedly connected to the left side of the right movable plate 6.

[0035] Reference Figure 1 , Figure 3 and Figure 5 The top inner wall of the accommodating plate 8 is threadedly connected with two threaded rods 19, and the outer sleeve of the threaded rod 19 is provided with a strong spring 20. This structure allows the threaded rod 19 to compress or release the spring when subjected to outward or inward force, thereby providing a dynamically adjusted pressure. The bottom end of the threaded rod 19 is rotatably connected with a stopper 21, and the bottom end of the stopper 21 is fixedly connected with a locking rod 22. This design allows the stopper 21 and the locking rod 22 to move accordingly when the threaded rod 19 rotates. The outside of the stopper 21 is slidably connected to the inside of the accommodating plate 8, and the outside of the bottom end of the locking rod 22 is engaged with the inside of one side of the force applying plate 9. The top of the threaded rod 19 is fixedly connected with a rotating disk 23. The operator can adjust the lifting and lowering of the threaded rod 19 by rotating the rotating disk 23, thereby controlling the replacement of the force applying plate 9.

[0036] Working principle: First, the cylinder (18) is started, and the cylinder (18) drives the right movable plate (6) to slide on the support rod (17). The movement of the right movable plate (6) causes the connecting block (5) to drive the connecting rod (4) to move, and then the movement of the connecting rod (4) drives the rotating plate (3) to rotate at the top of the fixed column (2). Then, the rotation of the rotating plate (3) drives the left connecting rod (4) to drive the connecting block (5) to move the left movable plate (6). Then, the movement of the movable plate (6) also drives the connecting block (7) to slide inside the long hole (15). The movement of the connecting block (7) drives the accommodating plate (8) to move the force-applying plate (9) toward the force-bearing plate (16). In this process, the shell is driven to move toward the force-bearing plate (16). Then, when the shell contacts the force-bearing plate (16), the sliding rod (11) slides on the inner wall of the fixed plate (10). The limit plate (13) will squeeze the strong spring (12), and then the strong spring (12) will generate a rebound force when it is squeezed. This rebound force provides an adaptive force to clamp the shell to prevent the exterior of the shell from being damaged by excessive rigidity. When the force plate (9) needs to be replaced, it only needs to rotate the rotating disk (23). The rotating disk (23) will move upward, and the movement of the rotating disk (23) will drive the stopper (21) to move upward. Then, the movement of the stopper (21) will separate the locking rod (22) and the interior of the force plate (9). At this time, the force plate (9) can be taken out from the interior of the accommodating plate (8) and then replaced. When installation is required, it only needs to twist the rotating disk (23) to drive the threaded rod (19) to move the stopper (21). The stopper (21) will lock with the interior of the force plate (9) when the movement is carried out. When the rotating disk (23) is tightened, it can prevent accidental opening after installation.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for machining an electromagnetic flowmeter housing, comprising a base (1), characterized in that: The bottom end of the base (1) is fixedly connected to a fixed column (2), the top end of the fixed column (2) is rotatably connected to a rotating plate (3), the top end of the rotating plate (3) is rotatably connected to two connecting rods (4), the bottom end of the connecting rod (4) is rotatably connected to a connecting block (5), the bottom end of the connecting block (5) is fixedly connected to a movable plate (6), the top end of the movable plate (6) is fixedly connected to two connecting blocks (7), the top ends of each two connecting blocks (7) are fixedly connected to a receiving plate (8), and one side of the receiving plate (8) is slidably connected to an application plate. The top of the base (1) is fixedly connected to two fixed plates (10), the fixed plates (10) are internally slidably connected to a plurality of sliding rods (11), the external sleeve of the sliding rods (11) is provided with a strong spring (12), the external fixed connection of the sliding rods (11) is a limit plate (13), the far sides of the plurality of sliding rods (11) are fixedly connected to a baffle plate (14), the close sides of the plurality of sliding rods (11) are fixedly connected to two force plates (16), and the internal fixed connection of the fixed column (2) is a driving component.

2. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1 is characterized in that: The inner wall of the top end of the accommodating plate (8) is threadedly connected to two threaded rods (19), the outer portion of the threaded rod (19) is sleeved with a second strong spring (20), the bottom end of the threaded rod (19) is rotatably connected to a stopper (21), the bottom end of the stopper (21) is fixedly connected to a locking rod (22), and the top end of the threaded rod (19) is fixedly connected to a rotating disk (23).

3. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1 is characterized in that: The driving assembly comprises a cylinder (18), the outside of the cylinder (18) being fixedly connected to the inside of the fixed column (2), and the driving end of the cylinder (18) being fixedly connected to the left side of the movable plate (6) on the right side.

4. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1 is characterized in that: A plurality of elongated holes (15) are formed at the top of the base (1), and the outside of the connecting block (7) is slidably connected to the inside of the elongated holes (15).

5. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1 is characterized in that: The interior of the base (1) is fixedly connected to two support rods (17), the interior of the movable plate (6) is slidably connected to the exterior of the support rods (17), and the exterior of the movable plate (6) is slidably connected to the interior of the base (1).

6. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1, characterized in that: The outside of the limiting plate (13) is slidably connected to the inside of the fixing plate (10), and one side of the baffle (14) is in contact with one side of the fixing plate (10).

7. The electromagnetic flowmeter housing processing and positioning fixture according to claim 1, characterized in that: One end of the strong spring one (12) is fixedly connected to one side of the limit plate (13), and the other end of the strong spring one (12) is fixedly connected to one side inside the fixing plate (10).

8. The electromagnetic flowmeter housing processing and positioning fixture according to claim 2, characterized in that: The outside of the stopper (21) is slidably connected to the inside of the accommodating plate (8), and the outside of the bottom end of the engaging rod (22) is engaged with the inside of one side of the force applying plate (9).

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