Clamping mechanism for nozzle ring production

Abstract

The utility model discloses a clamping mechanism for nozzle ring production, and relates to the technical field of nozzle ring production. The nozzle ring comprises a base assembly and a nozzle ring body, a reference table is arranged on the base assembly, bolts are inserted into the base assembly and the reference table in a threaded mode so as to fix the base assembly and the reference table, an adjusting assembly is arranged in the base assembly, and a circular ring body is arranged on the adjusting assembly. According to the utility model, the end parts of the lever clamping jaws are positioned in the concave ring, so that when the circular ring body vertically moves downwards, the lever clamping jaws are pressed, the plurality of groups of lever clamping jaws are enabled to gather inwards, and along with the synchronous inward gathering of the plurality of groups of lever clamping jaws, the nozzle ring body is finally kept at the central position of the reference table and is clamped and fixed by the plurality of groups of lever clamping jaws; self-centering operation and accurate fixing of the nozzle ring bodies are achieved, the positioning accuracy of the nozzle ring bodies is remarkably improved, and therefore the consistency of the machining quality of the nozzle ring bodies machined in batches and the overall machining accuracy are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nozzle ring production technical field, concretely relates to a kind of clamping mechanisms of nozzle ring production. BACKGROUND

[0002] Nozzle ring is a common design structure, mainly used in aero-engine, gas turbine and other thermal equipment, nozzle ring is usually composed of multiple nozzle blades, forms a complete annular structure, mainly used to accelerate and guide gas or steam from internal high-pressure area to external low-pressure area.

[0003] The Chinese patent with publication number CN219725854U discloses a kind of clamping mechanisms of nozzle ring production, including base, the top of the base is provided with mobile fixed mechanism, the mobile fixed mechanism includes with the fixed connection of base adjusting box, mobile rod is movably connected in the inside of the adjusting box, motor is fixedly connected on the left side of the adjusting box;

[0004] For the above-mentioned disclosed technology, in the existing nozzle ring production technology, since the circular ring axis of nozzle ring is difficult to keep concentric with the clamp, it is prone to inaccurate positioning when batch processing nozzle ring, which directly affects the machining precision and processing quality of nozzle ring, and further leads to the quality of batch processing nozzle ring is uneven.

[0005] Therefore, a kind of clamping mechanisms of nozzle ring production is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at: to solve the problems raised in the above background art, the utility model provides a kind of clamping mechanisms of nozzle ring production.

[0007] The utility model discloses the following technical solutions in order to achieve the above-mentioned purposes:

[0008] A kind of clamping mechanisms of nozzle ring production, including base assembly and nozzle ring body, base assembly is provided with datum table, and the inside of base assembly and datum table is screwed with bolt, to fix base assembly and datum table, adjusting assembly is provided in the base assembly, and datum table is provided with circular ring body on adjusting assembly, recessed ring is set on the surface of circular ring body, lever clamp jaw is rotatably installed on the surface of datum table, and the end of lever clamp jaw is located in recessed ring.

[0009] Further, the base assembly includes a bottom plate, a stepped ring is fixedly installed on the bottom plate, a threaded hole is formed in the end face of the stepped ring, and a mounting hole is formed in the surface of the bottom plate.

[0010] Furthermore, a groove is provided on the reference platform, and a lever clamp is installed in the groove through shaft rotation. A reference surface is provided on the end surface of the reference platform for positioning the end surface of the nozzle ring body.

[0011] Furthermore, the adjustment assembly includes a threaded rod fixed on the base plate, and the threaded rod is located in the step ring, the surface of the threaded rod is sleeved with a spring, one end of the spring is fixed to the surface of the base plate, the surface of the threaded rod is sleeved with a circular ring body, and the top thread of the threaded rod is sleeved with a nut.

[0012] Furthermore, the end of the lever clamp is a convex structure, and the end of the lever clamp is located in a concave ring on the surface of the annular body.

[0013] Furthermore, the inner wall of the annular body is provided with a convex strip, the surface of the threaded rod is provided with a limiting groove, and the convex strip on the inner wall of the annular body is located in the limiting groove on the surface of the threaded rod.

[0014] The beneficial effects of the utility model are as follows:

[0015] By placing the nozzle ring body on the end of the reference platform, the annular body is moved vertically downward by adjusting the assembly, and the end of the lever clamp is located in the concave ring, so that when the annular body moves vertically downward, the lever clamp is pressed, causing multiple groups of lever clamps to gather inward. As the multiple groups of lever clamps gather inward synchronously, the nozzle ring body is finally maintained at the center position of the reference platform and is clamped and fixed by the multiple groups of lever clamps, realizing self-centering operation and precise fixation of the nozzle ring body, significantly improving the positioning accuracy of the nozzle ring body, thereby ensuring the consistency of the processing quality of the batch-processed nozzle ring bodies and the overall processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the clamping state of the utility model;

[0018] Figure 3 This utility model Figure 1 sectional view of

[0019] Figure 4 It is a schematic diagram of the utility model in a non-clamping state;

[0020] Figure 5 This utility model Figure 4 sectional view of

[0021] Figure 6 It is a partial exploded view of the utility model;

[0022] Figure markings: 1. Base assembly; 101. Base plate; 102. Step ring; 103. Threaded hole; 104. Mounting hole; 2. Reference platform; 21. Groove; 22. Reference surface; 3. Bolt; 4. Adjustment assembly; 401. Threaded rod; 402. Spring; 403. Nut; 5. Ring body; 51. Concave ring; 6. Lever clamp; 7. Nozzle ring body. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] 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 rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0027] like Figures 1 to 6As shown, a clamping mechanism for producing a nozzle ring includes a base assembly 1 and a nozzle ring body 7. A reference platform 2 is provided on the base assembly 1, and bolts 3 are inserted into the internal threads of the base assembly 1 and the reference platform 2 to fix the base assembly 1 and the reference platform 2. An adjustment assembly 4 is provided in the base assembly 1, and a circular body 5 is provided on the adjustment assembly 4. A concave ring 51 is provided on the surface of the circular body 5. A lever clamp 6 is rotatably installed on the surface of the reference platform 2, and the end of the lever clamp 6 is located in the concave ring 51. More specifically, by placing the nozzle ring body 7 on the end of the reference platform 2, the annular body 5 is moved vertically downward through the adjustment component 4, and the end of the lever clamp 6 is located in the concave ring 51, so that when the annular body 5 moves vertically downward, the lever clamp 6 is pressed, causing the multiple groups of lever clamps 6 to gather inward. As the multiple groups of lever clamps 6 gather inward synchronously, the nozzle ring body 7 is finally maintained at the center position of the reference platform 2 and is clamped and fixed by the multiple groups of lever clamps 6, realizing self-centering operation and precise fixation of the nozzle ring body 7, significantly improving the positioning accuracy of the nozzle ring body 7, thereby ensuring the consistency of the processing quality and overall processing accuracy of the batch-processed nozzle ring bodies 7.

[0028] The base assembly 1 includes a base plate 101, to which a stepped ring 102 is fixedly mounted. The end surface of the stepped ring 102 is provided with a threaded hole 103, and the surface of the base plate 101 is provided with a mounting hole 104. More specifically, the threaded hole 103 on the end surface of the stepped ring 102 allows the base 2 to be fixed to the end surface of the stepped ring 102 via bolts 3.

[0029] The reference platform 2 has a groove 21 in which a lever clamp 6 is rotatably mounted. A reference surface 22 is defined on the end surface of the reference platform 2 for positioning the end surface of the nozzle ring body 7. More specifically, the reference surface 22 on the end surface of the reference platform 2 allows the nozzle ring body 7 to be positioned during machining.

[0030] The adjustment assembly 4 includes a threaded rod 401 fixed on the base plate 101, and the threaded rod 401 is located in the step ring 102. The surface of the threaded rod 401 is sleeved with a spring 402, one end of the spring 402 is fixed to the surface of the base plate 101, the surface of the threaded rod 401 is sleeved with a circular body 5, and the top end of the threaded rod 401 is threadedly sleeved with a nut 403. More specifically, an operating tool is correspondingly sleeved on the surface of the nut 403, and the nut 403 is driven to rotate by the operating tool. The nut 403 rotates and moves vertically downward along the surface of the threaded rod 401, so that the annular body 5 is driven to move vertically along the threaded rod 401, compressing the spring 402. The lever clamp 6 is pressed by the vertical downward movement of the annular body 5, causing the multiple groups of lever clamps 6 to gather inward, thereby clamping the nozzle ring body 7. When the nozzle ring body 7 is released, the nut 403 is rotated in the opposite direction, so that the annular body 5 is driven by the spring 402 to move vertically upward along the surface of the threaded rod 401, thereby causing the multiple groups of lever clamps 6 to expand outward, thereby unloading the nozzle ring body 7.

[0031] The end of the lever jaw 6 is convex, and the end of the lever jaw 6 is located in the concave ring 51 on the surface of the annular body 5. More specifically, the convex end of the lever jaw 6 is located in the concave ring 51 on the surface of the annular body 5, so that when the annular body 5 moves vertically, the lever jaw 6 is moved.

[0032] The inner wall of the annular body 5 is provided with a ridge, and the surface of the threaded rod 401 is provided with a limiting groove, and the ridge on the inner wall of the annular body 5 is located within the limiting groove on the surface of the threaded rod 401. More specifically, the ridge on the inner wall of the annular body 5 is located within the limiting groove on the surface of the threaded rod 401, thereby guiding and limiting the annular body 5 during vertical movement.

[0033] In summary: by placing the nozzle ring body 7 on the end of the reference platform 2, the annular body 5 is moved vertically downward through the adjustment component 4, and the end of the lever clamp 6 is located in the concave ring 51, so that when the annular body 5 moves vertically downward, the lever clamp 6 is pressed, causing the multiple groups of lever clamps 6 to gather inward. As the multiple groups of lever clamps 6 gather inward synchronously, the nozzle ring body 7 is finally maintained at the center position of the reference platform 2 and is clamped and fixed by the multiple groups of lever clamps 6, thereby realizing self-centering operation and precise fixation of the nozzle ring body 7, significantly improving the positioning accuracy of the nozzle ring body 7, thereby ensuring the consistency of the processing quality and overall processing accuracy of the batch-processed nozzle ring bodies 7.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for nozzle ring production, characterized in that: The invention comprises a base assembly (1) and a nozzle ring body (7), wherein a reference platform (2) is provided on the base assembly (1), and internal threads of the base assembly (1) and the reference platform (2) are connected with bolts (3) to fix the base assembly (1) and the reference platform (2), an adjustment assembly (4) is provided in the base assembly (1), and a circular ring (5) is provided on the adjustment assembly (4), a concave ring (51) is provided on the surface of the circular ring (5), and a lever clamp (6) is rotatably installed on the surface of the reference platform (2), and the end of the lever clamp (6) is located in the concave ring (51).

2. A clamping mechanism for producing a nozzle ring according to claim 1, characterized in that: The base assembly (1) comprises a base plate (101), a stepped ring (102) is fixedly mounted on the base plate (101), a threaded hole (103) is provided on the end surface of the stepped ring (102), and a mounting hole (104) is provided on the surface of the base plate (101).

3. The clamping mechanism for producing a nozzle ring according to claim 1, characterized in that: The reference platform (2) is provided with a groove (21), and a lever clamp (6) is installed in the groove (21) through shaft rotation. The end surface of the reference platform (2) is provided with a reference surface (22) for positioning the end surface of the nozzle ring body (7).

4. The clamping mechanism for producing a nozzle ring according to claim 1, characterized in that: The adjustment assembly (4) comprises a threaded rod (401) fixed on a base plate (101), and the threaded rod (401) is located in a stepped ring (102). A spring (402) is sleeved on the surface of the threaded rod (401), and one end of the spring (402) is fixed to the surface of the base plate (101). A circular ring (5) is sleeved on the surface of the threaded rod (401), and a nut (403) is threadedly sleeved on the top end of the threaded rod (401).

5. The clamping mechanism for producing a nozzle ring according to claim 1, characterized in that: The end of the lever clamp (6) is a convex structure, and the end of the lever clamp (6) is located in a concave ring (51) on the surface of the annular body (5).

6. The clamping mechanism for producing a nozzle ring according to claim 4, characterized in that: The inner wall of the annular body (5) is provided with a convex strip, the surface of the threaded rod (401) is provided with a limiting groove, and the convex strip on the inner wall of the annular body (5) is located in the limiting groove on the surface of the threaded rod (401).

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