Efficient roundness correction tool for annular parts

Abstract

The utility model discloses an efficient roundness correction tool for an annular part, and relates to the technical field of roundness correction of the annular part. A plurality of outer supporting assemblies are uniformly arranged on the top surface of a circular bottom plate in the circumferential direction of a conical head; each outer supporting assembly comprises a fixing column fixedly arranged on the top surface of the circular bottom plate, two screws and a fan-shaped sliding plate which is installed between the two screws in a sliding mode and supported on the top surface of the circular bottom plate, and two kidney-shaped sinking grooves are formed in the top surface of each fan-shaped sliding plate. The outer edge of the fan-shaped sliding plate is in a circular arc shape, a spring is fixedly connected between the fixing column and the side wall of the strip-shaped blind groove, and the conical groove of the fan-shaped sliding plate abuts against the outer conical face of the conical head of the expansion sleeve under the elastic force effect of the spring. The device has the advantages that the working intensity of workers is relieved, and the roundness correction efficiency of the annular parts is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aligning annular parts, and in particular to a high-efficiency alignment tooling for annular parts. Background Technology

[0002] A batch of ring-shaped parts 1 produced in a certain workshop have the following structure: Figure 1 As shown, its shape is circular, and its wall thickness is 0.4~1mm. Due to the manufacturing process, the outer surface of the produced annular part 1 has several slightly outward-protruding arc-shaped protrusions. However, the process requires that the annular part 1 should not have any arc-shaped protrusions. Therefore, the workers need to round these annular parts 1, that is, to trim the arc-shaped protrusions on the annular part 1 to obtain an annular part that is circular in shape.

[0003] The method for rounding a ring-shaped part 1 in the workshop is as follows: S1, the worker takes out a ring-shaped part 1 with arc-shaped protrusions and places it flat on the workbench; S2, the worker uses a wooden hammer to tap each arc-shaped protrusion to reduce the size of each arc-shaped protrusion. When all the arc-shaped protrusions are eliminated, a finished part that is round in the whole is obtained, thus completing the rounding of a ring-shaped part 1; S3, the worker repeats the operation of steps S1 to S2 in this way to continuously round multiple ring-shaped parts 1.

[0004] However, although the method used in the workshop can round the annular part 1, it still has the following technical defects:

[0005] I. In step S2, it is necessary to manually use a wooden hammer to strike each arc-shaped protrusion on the annular part 1 to eliminate the arc-shaped protrusions in order to complete the rounding of an annular part 1. However, there are as many as 5 to 6 arc-shaped protrusions on an annular part 1. The worker strikes the arc-shaped protrusions one by one, which not only increases the worker's workload but also reduces the rounding efficiency of the annular part 1.

[0006] II. There are as many as 100 to 110 annular parts 1 to be calibrated in a single day, which means it takes a long time to calibrate all of them, thus further reducing the calibrating efficiency of the annular parts 1.

[0007] Therefore, there is an urgent need for a rounding tool that can reduce the workload of workers and greatly improve the rounding efficiency of ring-shaped parts. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-efficiency rounding tooling for annular parts that reduces the workload of workers and greatly improves the rounding efficiency of annular parts.

[0009] The purpose of this utility model is achieved through the following technical solution: a high-efficiency rounding tool for annular parts, which includes a circular base plate, a threaded rod fixed in the center of the circular base plate, a threaded head threadedly connected to the threaded rod, and L-shaped hook blocks fixed on the bottom surface of the threaded head and at its left and right ends, and an expansion sleeve connected directly below the threaded head.

[0010] The expansion sleeve includes a conical head and a column fixed on the top surface of the conical head. An annular groove is formed on the column surface of the column. A central hole is formed inside the expansion sleeve, which passes through the column and the conical head in sequence. The central hole of the expansion sleeve is fitted outside the threaded rod. The two hooks of the screw head are embedded in the annular groove to connect the screw head to the expansion sleeve.

[0011] On the top surface of the circular base plate, a plurality of external support components are evenly arranged in the circumferential direction around the conical head. Each external support component includes a fixed column fixed on the top surface of the circular base plate, two screws, a fan-shaped sliding plate slidably installed between the two screws and supported on the top surface of the circular base plate. Two waist-shaped grooves are opened on the top surface of the fan-shaped sliding plate, and the two waist-shaped grooves of the fan-shaped sliding plate are respectively fitted onto the two screws.

[0012] The outer edge of the fan-shaped sliding plate is arc-shaped, and a conical groove is provided at the inner end of the fan-shaped sliding plate. A strip-shaped blind groove is provided on the bottom surface of the fan-shaped sliding plate and fitted outside the fixed column. A spring is fixed between the fixed column and the side wall of the strip-shaped blind groove. Under the elastic force of the spring, the conical groove of the fan-shaped sliding plate abuts against the outer conical surface of the conical head of the expansion sleeve.

[0013] Two screws are located on either side of the fixing post.

[0014] The waist-shaped sinkhole is parallel to the strip-shaped blind sinkhole.

[0015] The column base and the conical head are coaxially arranged.

[0016] The conical groove of the fan-shaped sliding plate matches the outer conical surface of the conical head.

[0017] Two handles are fixed on the top surface of the screw head.

[0018] This invention has the following advantages: it reduces the workload of workers and greatly improves the efficiency of rounding ring parts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a ring-shaped part;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 for Figure 2 The main view;

[0022] Figure 4 for Figure 2 Top view;

[0023] Figure 5 for Figure 4 AA section view;

[0024] Figure 6 for Figure 2 A structural diagram with one fan-shaped slide removed;

[0025] Figure 7 This is a schematic diagram of the structure of a fan-shaped sliding plate;

[0026] Figure 8 for Figure 7 A bottom view;

[0027] Figure 9 This is a schematic diagram of the screw head structure;

[0028] Figure 10 This is a schematic diagram of the expansion sleeve structure;

[0029] Figure 11 This is a schematic diagram showing the connection between the screw head, threaded rod, and expansion sleeve.

[0030] Figure 12 A schematic diagram illustrating the installation of the circular part to be aligned;

[0031] Figure 13 for Figure 12 Top view;

[0032] Figure 14 for Figure 13 BB section view;

[0033] Figure 15 A schematic diagram showing the outer edge of a fan-shaped sliding plate pressing outward against the inner wall of a ring-shaped part;

[0034] In the picture:

[0035] 1-Ring-shaped part, 2-Circular base plate, 3-Threaded rod, 4-Threaded head, 5-Hook block, 6-Conical head, 7-Platform, 8-Ring groove, 9-Central hole;

[0036] 10-External support assembly, 11-Fixing column, 12-Screw, 13-Fan-shaped sliding plate, 14-Waist-shaped recess, 15-Conical groove, 16-Strip blind groove, 17-Spring, 18-Handle. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0038] like Figures 2-11 As shown, a high-efficiency rounding tool for annular parts includes a circular base plate 2, a threaded rod 3 fixed in the center of the circular base plate 2, a screw head 4 threadedly connected to the threaded rod 3, L-shaped hooks 5 fixed on the bottom surface of the screw head 4 and at its left and right ends, and an expansion sleeve connected directly below the screw head 4; two handles 18 are fixed on the top surface of the screw head 4.

[0039] The expansion sleeve includes a conical head 6 and a column 7 fixed on the top surface of the conical head 6. An annular groove 8 is formed on the column surface of the column 7. A central hole 9 is formed inside the expansion sleeve, passing through the column 7 and the conical head 6 in sequence. The central hole 9 of the expansion sleeve is fitted outside the threaded rod 3. The two hooks 5 of the screw head 4 are embedded in the annular groove 8 to connect the screw head 4 to the expansion sleeve. The column 7 and the conical head 6 are coaxially arranged.

[0040] On the top surface of the circular base plate 2, multiple external support components 10 are evenly arranged around the circumference of the conical head 6. Each external support component 10 includes a fixing post 11 fixed to the top surface of the circular base plate 2, two screws 12, and a fan-shaped sliding plate 13 slidably installed between the two screws 12 and supported on the top surface of the circular base plate 2. The two screws 12 are located on both sides of the fixing post 11. Two waist-shaped recesses 14 are formed on the top surface of the fan-shaped sliding plate 13, and the two waist-shaped recesses 14 are respectively fitted onto the two screws 12. The waist-shaped recesses 14 are parallel to the strip-shaped blind grooves 16. The conical grooves 15 of the fan-shaped sliding plate 13 mate with the outer conical surface of the conical head 6.

[0041] The outer edge of the fan-shaped sliding plate 13 is arc-shaped, and a conical groove 15 is provided at the inner end of the fan-shaped sliding plate 13. A strip-shaped blind groove 16 is provided on the bottom surface of the fan-shaped sliding plate 13 and sleeved on the outside of the fixing post 11. A spring 17 is fixed between the fixing post 11 and the side wall of the strip-shaped blind groove 16. Under the elastic force of the spring 17, the conical groove 15 of the fan-shaped sliding plate 13 abuts against the outer conical surface of the conical head 6 of the expansion sleeve.

[0042] The working process of this utility model is as follows:

[0043] S1, the worker takes out a... Figure 1 The ring-shaped part 1 shown has an arc-shaped protrusion;

[0044] S2. The worker places the annular part 1 onto the outside of the circle formed by the fan-shaped sliding plates 13 of each external support assembly 10, and supports the annular part 1 on the top surface of the circular base plate 2, thereby realizing the installation of the annular part 1 to be rounded, as shown. Figures 12-14 As shown;

[0045] S3. The worker holds handle 18 and then rotates it. Handle 18 drives screw head 4 to rotate, screw head 4 drives two hook blocks 5 to move downwards synchronously, and two hook blocks 5 drive the expansion sleeve's column 7 and conical head 6 to move downwards synchronously. Conical head 6 presses down on the conical grooves 15 located at the inner ends of each sector slide plate 13. When the sector slide plate 13 is compressed, it moves radially relative to the stationary screw 12, and the sector slide plate 13 compresses spring 17 onto fixed post 11. At the same time, the outer edge of the sector slide plate 13 presses outwards against the inner wall of the annular part 1, such as... Figure 15 As shown, under the squeezing action of the outer edges of each fan-shaped slide plate 13, the arc-shaped protrusions on the annular part 1 are eliminated, thereby obtaining a finished part that is circular in shape, thus completing the rounding of an annular part 1.

[0046] As seen in steps S2-S3, the worker only needs to first place the annular part 1 to be rounded onto the outside of the circle formed by the various sector-shaped sliding plates 13, and then rotate the screw head 4 downwards so that the conical head 6 presses down on the conical grooves 15 of each sector-shaped sliding plate 13. This causes the outer edges of each sector-shaped sliding plate 13 to press against the inner wall of the annular part 1, thus completing the rounding of one annular part 1. Therefore, it is clear that the worker does not need to tap the arc-shaped protrusions of the annular part 1 one by one to complete the rounding, which not only reduces the worker's workload but also greatly improves the rounding efficiency of the annular part 1. Furthermore, by shortening the rounding time of a single annular part 1, it is possible to round all hundreds of annular parts 1 in the workshop in a short time, further improving the rounding efficiency of the annular part 1.

[0047] S4. Removal of finished parts: The worker rotates the handle 18 in the opposite direction. The handle 18 drives the screw head 4 to rotate in the opposite direction. The screw head 4 drives the two hook blocks 5 to move upward synchronously. The two hook blocks 5 drive the column 7 of the expansion sleeve and the conical head 6 to move upward synchronously. The conical head 6 gradually separates from the conical groove 15 of each fan-shaped slide plate 13. Under the elastic recovery of the spring 17, the fan-shaped slide plate 13 moves away from the finished parts relative to the stationary screw 12. After the fan-shaped slide plate 13 separates from the finished parts, the worker removes the finished parts from the circular base plate 2.

[0048] S5. By repeating steps S1 to S4, workers can continuously round multiple annular parts 1.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency roundness correction fixture for ring-shaped parts, characterized in that: It includes a circular base plate (2), a threaded rod (3) fixed in the center of the circular base plate (2), a screw head (4) threadedly connected to the threaded rod (3), and L-shaped hooks (5) fixed on the bottom surface of the screw head (4) and at its left and right ends. An expansion sleeve is connected directly below the screw head (4). The expansion sleeve includes a conical head (6) and a column (7) fixed on the top surface of the conical head (6). An annular groove (8) is provided on the column surface of the column (7). A central hole (9) is provided inside the expansion sleeve, which passes through the column (7) and the conical head (6) in sequence. The central hole (9) of the expansion sleeve is fitted outside the threaded rod (3). The two hooks (5) of the screw head (4) are embedded in the annular groove (8) to connect the screw head (4) to the expansion sleeve. On the top surface of the circular base plate (2), a plurality of external support components (10) are evenly arranged around the circumference of the conical head (6). Each external support component (10) includes a fixed column (11) fixed on the top surface of the circular base plate (2), two screws (12), and a fan-shaped sliding plate (13) slidably installed between the two screws (12) and supported on the top surface of the circular base plate (2). Two waist-shaped grooves (14) are opened on the top surface of the fan-shaped sliding plate (13). The two waist-shaped grooves (14) of the fan-shaped sliding plate (13) are respectively fitted onto the two screws (12). The outer edge of the fan-shaped sliding plate (13) is arc-shaped, and a conical groove (15) is provided at the inner end of the fan-shaped sliding plate (13). A strip-shaped blind groove (16) sleeved on the bottom surface of the fan-shaped sliding plate (13) is provided outside the fixed column (11). A spring (17) is fixed between the fixed column (11) and the side wall of the strip-shaped blind groove (16). Under the elastic force of the spring (17), the conical groove (15) of the fan-shaped sliding plate (13) abuts against the outer conical surface of the conical head (6) of the expansion sleeve.

2. The high-efficiency roundness correction fixture for annular parts according to claim 1, characterized in that: Two screws (12) are located on both sides of the fixing post (11).

3. The high-efficiency roundness adjustment fixture for annular parts according to claim 1, characterized in that: The waist-shaped sinkhole (14) is parallel to the strip-shaped blind sinkhole (16).

4. The high-efficiency roundness correction fixture for annular parts according to claim 1, characterized in that: The column base (7) and the conical head (6) are coaxially arranged.

5. The high-efficiency roundness adjustment fixture for annular parts according to claim 1, characterized in that: The conical groove (15) of the fan-shaped slide plate (13) matches the outer conical surface of the conical head (6).

6. The high-efficiency roundness adjustment fixture for annular parts according to claim 1, characterized in that: Two handles (18) are fixed on the top surface of the screw head (4).

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