Positioning clamp for impeller machining

Abstract

The utility model discloses a positioning clamp for impeller machining, and relates to the technical field of impeller machining. The device comprises a base, an adjusting seat arranged above the base and a connecting seat arranged in the middle position above the adjusting seat, and further comprises a four-jaw chuck arranged in the middle position of the top of the connecting seat. According to the utility model, the inclination angle of the adjusting seat can be adjusted by respectively controlling the single adjusting cylinders to correspondingly stretch out and draw back, so that the four-jaw chuck can be inclined in all directions in the circumference, the fixed impeller is subjected to inclination adjustment in all directions so as to meet the machining requirement, and meanwhile, the four-jaw chuck and the impeller can be adjusted to keep horizontal stability; the rotating mechanism can drive the connecting base and the four-jaw chuck to rotate, and then the fixed impeller is rotationally adjusted, so that the purpose that the impeller can be rotationally and obliquely adjusted in an omnibearing and multi-angle mode so as to ensure that a milling tool bit can accurately mill gaps between impeller blades is achieved, and the clamping and positioning effect of the clamp is optimized.

Description

Technical Field

[0001] This utility model belongs to the field of impeller machining technology, and in particular relates to an impeller machining positioning fixture. Background Technology

[0002] An impeller is a rotating mechanical component consisting of a disk and blades. It drives fluid movement through rotation to achieve energy conversion and transmission. It is widely used in equipment such as pumps, compressors, and steam turbines. During the production and processing of impellers, specific fixtures are required to hold and position them so that milling equipment can perform milling processing on the impeller blank.

[0003] However, existing positioning fixtures typically hold the impeller at a stable angle during application. The uniformly distributed blades on the impeller surface greatly increase the difficulty of milling, requiring complex milling equipment to perform impeller milling operations. There is a technical problem that the impeller cannot be rotated and tilted in all directions and angles during clamping and positioning to expand the fixture's functions and achieve simple and efficient impeller machining. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an impeller machining positioning fixture, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a positioning fixture for impeller machining, including a base, an adjusting seat disposed on the base, and a connecting seat disposed at the middle position above the adjusting seat, and further including:

[0007] A four-jaw chuck is located in the middle of the top of the connector.

[0008] An adjusting cylinder is located between the top of the base and the bottom of the adjusting seat near the edge. The bottom end of the adjusting cylinder is provided with a first ball joint coupling, and the top end of the adjusting cylinder is provided with a second ball joint coupling.

[0009] The rotating mechanism is located between the top of the adjusting seat and the bottom of the connecting seat.

[0010] Furthermore, there are six sets of adjusting cylinders, which are arranged at equal intervals between the top of the base and the bottom of the adjusting seat, and the adjusting cylinders are inclined.

[0011] Furthermore, the bottom of the first ball joint coupling is fixedly connected to the top of the base, and the top of the second ball joint coupling is fixedly connected to the bottom of the adjusting seat near the edge.

[0012] Furthermore, the rotating mechanism includes a stabilizing seat, a rotating sleeve, an eccentric motor, a gear ring, a stabilizing slide, a transmission gear, and a limiting groove. The stabilizing seat is located at the top edge of the adjusting seat, the rotating sleeve is located at the bottom edge of the connecting seat, the eccentric motor is located in the middle of the interior of the adjusting seat, the transmission gear is located at the output end of the eccentric motor inside the stabilizing seat, the gear ring is located near the top of the inner side of the rotating sleeve, the limiting groove is located near the top of the inner side of the stabilizing seat, and the stabilizing slide is located at the bottom of the outer side of the rotating sleeve.

[0013] Furthermore, the stabilizing seat is annular, the rotating sleeve is nested inside the stabilizing seat, the transmission gear and the gear ring are on the same horizontal plane, and the transmission gear meshes with the inner side of the gear ring.

[0014] Furthermore, the stabilizing slide and the limiting slide are annular, the stabilizing slide is engaged inside the limiting slide, and the stabilizing slide can rotate and slide inside the limiting slide.

[0015] This utility model has the following beneficial effects:

[0016] This invention allows for adjustment of the tilt angle of the adjusting seat by controlling the extension and retraction of individual adjusting cylinders, enabling the four-jaw chuck to tilt in all directions around its circumference. This, in turn, allows for tilt adjustment of the fixed impeller in various directions to meet processing requirements. Simultaneously, it can also adjust the four-jaw chuck and impeller to maintain horizontal stability. Furthermore, the eccentric motor drives the transmission gear to rotate, which in turn drives the gear ring to rotate, thereby rotating the rotating sleeve, which in turn drives the connecting seat and the four-jaw chuck to rotate and adjust the fixed impeller. This achieves the goal of omnidirectional, multi-angle rotation and tilt adjustment of the impeller to ensure that the milling cutter can accurately mill the gaps between the impeller blades, thus optimizing the clamping and positioning effect of the fixture. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a rear-view perspective view of the present invention;

[0020] Figure 3 This is a three-dimensional partially exploded view of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. Adjusting cylinder; 3. Adjusting seat; 4. First ball joint coupling; 5. Stabilizing seat; 6. Connecting seat; 7. Four-jaw chuck; 8. Rotating sleeve; 9. Second ball joint coupling; 10. Eccentric motor; 11. Gear ring; 12. Stabilizing slide; 13. Transmission gear; 14. Limiting groove. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-4 As shown, this utility model is a positioning fixture for impeller processing, including a base 1, an adjusting seat 3 disposed above the base 1, and a connecting seat 6 disposed at the middle position above the adjusting seat 3, and further including:

[0026] The four-jaw chuck 7 is located at the middle position of the top of the connecting seat 6. The four-jaw chuck 7 is used to clamp and fix the impeller blanks of different diameters that need to be processed above the connecting seat 6.

[0027] Adjusting cylinders 2 are positioned between the top of the base 1 and the bottom of the adjusting seat 3 near the edge. Six sets of adjusting cylinders 2 are arranged at equal intervals between the top of the base 1 and the bottom of the adjusting seat 3, and the adjusting cylinders 2 are tilted. By controlling the extension or retraction of each individual adjusting cylinder 2, the adjusting seat 3 on the corresponding side can be adjusted to rise or fall, thereby adjusting the tilt of the adjusting seat 3 and the impeller or keeping it horizontal and stable. The bottom of the adjusting cylinder 2 is provided with a first ball joint coupling 4, and the top of the adjusting cylinder 2 is provided with a second ball joint coupling 9. The bottom of the first ball joint coupling 4 is fixedly connected to the top of the base 1, and the top of the second ball joint coupling 9 is fixedly connected to the bottom of the adjusting seat 3 near the edge. The two ends of the adjusting cylinder 2 are movably hinged to the top of the base 1 and the bottom of the adjusting seat 3 through the first ball joint coupling 4 and the second ball joint coupling 9 to ensure the flexibility of the adjusting cylinder 2 during operation.

[0028] A rotating mechanism is located between the top of the adjusting seat 3 and the bottom of the connecting seat 6. The rotating mechanism includes a stabilizing seat 5, a rotating sleeve 8, an eccentric motor 10, a gear ring 11, a stabilizing slide 12, a transmission gear 13, and a limiting groove 14. The stabilizing seat 5 is located near the edge of the top of the adjusting seat 3, and the rotating sleeve 8 is located at the edge of the bottom of the connecting seat 6. The stabilizing seat 5 is annular, and the rotating sleeve 8 is nested inside the stabilizing seat 5. The eccentric motor 10 is located in the middle of the interior of the adjusting seat 3. The output end of the eccentric motor 10 inside the stabilizing seat 5 is equipped with a transmission gear 13. The gear ring 11 is located near the top of the inner side of the rotating sleeve 8. The transmission gear 13 and the gear ring 11 are on the same horizontal plane, and the inner sides of the transmission gear 13 and the gear ring 11 are aligned. The lateral meshing is achieved by driving the transmission gear 13 to rotate via the eccentric motor 10, which in turn drives the meshing gear ring 11 to rotate. This, in turn, drives the rotating sleeve 8 to rotate inside the stabilizing seat 5, thereby driving the connecting seat 6 to rotate. This, in turn, drives the four-jaw chuck 7 and the impeller clamped and fixed on it to rotate. The stabilizing seat 5 has an annular limiting groove 14 near the top of its inner side, and an annular stabilizing slide 12 is provided at the bottom of the outer side of the rotating sleeve 8. The stabilizing slide 12 engages with the interior of the limiting groove 14 and can rotate and slide within the limiting groove 14. When the rotating sleeve 8 rotates, the stabilizing slide 12 rotates and slides within the limiting groove 14, thus stabilizing the rotating sleeve 8 and ensuring the stability of the impeller when it is rotated and adjusted.

[0029] When in use, the eccentric motor 10, which is installed in the middle of the inside of the adjusting seat 3, is started to drive the transmission gear 13 installed at its output end to rotate. When the transmission gear 13 rotates, it drives the toothed ring 11, which is installed on the top of the inner side of the rotating sleeve 8 and meshes with it, to rotate. This causes the rotating sleeve 8 to rotate inside the stabilizing seat 5, thereby driving the connecting seat 6 and the four-jaw chuck 7 to rotate. When the rotating sleeve 8 is driven to rotate, the stabilizing slide 12, which is annular on its outer bottom, rotates in the limiting slide groove 14 installed inside the stabilizing seat 5 to stabilize the rotating sleeve 8 and ensure that the connecting seat 6 and the four-jaw chuck 7 rotate stably.

[0030] Working principle: When using the positioning fixture, the impeller to be machined is first placed between the jaws of the four-jaw chuck 7. The jaws are adjusted to move radially to hold and fix the impeller. The extension or retraction stroke of a single adjusting cylinder 2 is preset according to the impeller size and blade spacing. During the machining of the impeller, the extension or retraction of the single adjusting cylinder 2 can adjust the lowering or raising of the corresponding adjusting seat 3, thereby adjusting the tilt of the adjusting seat 3 and the impeller or keeping it horizontal and stable, ensuring that the milling cutter head accurately mills the blade gap. The eccentric motor 10 drives the transmission gear 13 to rotate, which in turn drives the gear ring 11 to rotate, thereby driving the rotating sleeve 8 to rotate inside the stabilizing seat 5, thereby driving the impeller to rotate to machine the gaps between the blades. When the rotating sleeve 8 is driven to rotate, the stabilizing slide 12 rotates within the limited slide groove 14 to stabilize the rotating sleeve 8, ensuring that the impeller fixed in the connecting seat 6 and the four-jaw chuck 7 rotates stably, thereby achieving stable clamping and multi-directional adjustment of the impeller to assist in machining.

[0031] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A positioning fixture for impeller machining, comprising a base (1), an adjusting seat (3) disposed above the base (1), and a connecting seat (6) disposed at the middle position above the adjusting seat (3), characterized in that, Also includes: The four-jaw chuck (7) is located at the middle position on the top of the connector (6); An adjusting cylinder (2) is located between the top of the base (1) and the bottom of the adjusting seat (3) near the edge. The bottom end of the adjusting cylinder (2) is provided with a first ball joint coupling (4), and the top end of the adjusting cylinder (2) is provided with a second ball joint coupling (9). The rotating mechanism is located between the top of the adjusting seat (3) and the bottom of the connecting seat (6).

2. The impeller machining positioning fixture according to claim 1, characterized in that, The regulating cylinder (2) is provided in six groups. The regulating cylinder (2) is arranged at equal intervals between the top of the base (1) and the bottom of the adjusting seat (3), and the regulating cylinder (2) is set at an angle.

3. The impeller machining positioning fixture according to claim 1, characterized in that, The bottom of the first ball joint coupling (4) is fixedly connected to the top of the base (1), and the top of the second ball joint coupling (9) is fixedly connected to the bottom of the adjusting seat (3) near the edge.

4. The impeller machining positioning fixture according to claim 1, characterized in that, The rotating mechanism includes a stabilizing seat (5), a rotating sleeve (8), an eccentric motor (10), a gear ring (11), a stabilizing slide (12), a transmission gear (13), and a limiting slide groove (14). The stabilizing seat (5) is located at the top of the adjusting seat (3) near the edge. The rotating sleeve (8) is located at the bottom edge of the connecting seat (6). The eccentric motor (10) is located in the middle of the interior of the adjusting seat (3). The output end of the eccentric motor (10) inside the stabilizing seat (5) is provided with a transmission gear (13). The gear ring (11) is located near the top of the inner side of the rotating sleeve (8). The limiting slide groove (14) is located near the top of the inner side of the stabilizing seat (5). The stabilizing slide (12) is located at the bottom of the outer side of the rotating sleeve (8).

5. The impeller machining positioning fixture according to claim 4, characterized in that, The stabilizing seat (5) is annular, the rotating sleeve (8) is nested inside the stabilizing seat (5), the transmission gear (13) and the gear ring (11) are on the same horizontal plane, and the transmission gear (13) meshes with the inner side of the gear ring (11).

6. The impeller machining positioning fixture according to claim 4, characterized in that, The stabilizing slide (12) and the limiting slide (14) are annular. The stabilizing slide (12) is engaged with the interior of the limiting slide (14), and the stabilizing slide (12) can rotate and slide inside the limiting slide (14).

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