Special fixture for maintenance and detection of main shaft

Abstract

The utility model provides a special fixture for maintaining and detecting a main shaft, which comprises a three-jaw chuck consisting of a chuck body, three linkage pieces and calipers, and further comprises an independent adjusting assembly arranged between the linkage pieces and the calipers and used for adjusting and controlling the calipers to move independently; the three-jaw chuck and the independent adjusting assembly are arranged, the three calipers on the three-jaw chuck can be independently adjusted through the independent adjusting assembly, and when the damaged spindle cannot be completely clamped after the three calipers are moved to the designated position at the same time through the linkage piece, the three calipers can be independently adjusted through the independent adjusting assembly. At the moment, the position of one caliper is independently adjusted through the independent adjusting assembly, so that the three calipers can clamp the damaged main shaft to the maximum degree, the main shafts with different damage degrees can be clamped without replacing other types of chucks, a user can autonomously select to adjust the calipers of the three-jaw chuck in a linkage mode, and the working efficiency is improved. Or one of the calipers can be independently adjusted to meet actual requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool maintenance equipment, and particularly relates to a special fixture for spindle maintenance and detection. Background Art

[0002] The spindle is a shaft that receives power from an engine or a motor and transmits it to other machine parts.

[0003] When the spindle is damaged due to various reasons, since its replacement cost is huge, the damaged spindle is generally repaired by reprocessing on a lathe so that it can continue to be used. When the spindle is fixed, a three-jaw chuck is generally used for fixing. The three-jaw chuck refers to a machine tool accessory that clamps and positions a workpiece by the radial movement of three movable jaws evenly distributed on the chuck body. In the prior art, the three-jaw chuck generally adopts a linkage adjustment method, and the three jaws move simultaneously. Although this method can quickly clamp the spindle, if the damage degree of the spindle is large, the three-jaw chuck cannot clamp all sides of the spindle at the same time, which will have a certain impact on the maintenance of the spindle.

[0004] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is the closest prior art. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above deficiencies and provide a special fixture for spindle maintenance and detection.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: A special fixture for spindle maintenance and detection, including a three-jaw chuck composed of a chuck body, three linkage members and a caliper, further comprising:

[0007] A separate adjustment assembly, arranged between the linkage member and the caliper, for regulating the independent movement of the caliper.

[0008] Further, the separate adjustment assembly includes a fixed block fixedly arranged on the linkage member and an adjustment handle penetrating through the side wall of the fixed block, and one end of the adjustment handle is fixedly provided with a threaded rod.

[0009] Further, the threaded rod is rotatably arranged on one side surface of the fixed block, and a threaded groove adapted to the threaded rod is opened at one end of the caliper close to the fixed block.

[0010] Further, the separate adjustment assembly includes a fixed block arranged on the linkage member and an adjustment handle penetrating through the side wall of the fixed block, one end of the adjustment handle is fixedly provided with a threaded rod, and a quick-release assembly is arranged at one end of the fixed block.

[0011] Furthermore, the quick-release assembly includes a connecting block fixedly arranged on a side of the fixing block and symmetrically arranged, and one end of the linkage member is provided with a connecting groove adapted to the connecting block.

[0012] Furthermore, a limiting block is slidably provided on one side of the connecting block, and a symmetrically arranged telescopic spring is fixedly provided between the limiting block and the connecting block.

[0013] Furthermore, the connecting groove is L-shaped, a push block is slidably provided at one end of the connecting groove, a connecting rod penetrating the side wall of the linkage member is fixedly provided at one end of the push block, and a pressing block is fixedly provided at the other end of the connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By setting a three-jaw chuck and a separate adjustment component, the separate adjustment component can make the three calipers on the three-jaw chuck adjustable individually. When the three calipers are moved to the specified positions at the same time through the linkage, and the damaged spindle cannot be fully clamped, the position of one of the calipers can be adjusted individually through the separate adjustment component, so that the three calipers can complete the clamping of the damaged spindle to the maximum extent. Spindles with different degrees of damage can be clamped without replacing other types of chucks. Users can choose to independently adjust the calipers of the three-jaw chuck in linkage, or adjust one of the calipers individually to meet actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The overall structure of an embodiment of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of an embodiment of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 It is a structural schematic diagram of a linkage member and a caliper in one embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of a linkage member in one embodiment of the utility model;

[0021] Figure 5 It is a schematic structural diagram of a limit block and a telescopic spring in one embodiment of the utility model.

[0022] In the figure: 1. Three-jaw chuck; 101. Chuck body; 102. Linkage member; 103. Caliper; 2. Separate adjustment assembly; 201. Fixed block; 202. Adjustment handle; 203. Threaded rod; 204. Threaded groove; 3. Quick-release assembly; 301. Connecting block; 3011. Limiting block; 3012. Telescopic spring; 302. Connecting groove; 303. Pressing block; 304. Connecting rod; 305. Pushing block. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, "a plurality" means two or more. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0026] Please refer to Figures 1-5 。

[0027] The utility model provides a technical solution for a special fixture for spindle maintenance and inspection: a special fixture for spindle maintenance and inspection, including a three-jaw chuck 1 composed of a chuck body 101, three linkage parts 102 and a caliper 103. The internal structure of the chuck body 101 can make the linkage part 102 drive the caliper 103 to move synchronously. This is the prior art and will not be described in detail here. It also includes: a separate adjustment component 2 arranged between the linkage part 102 and the caliper 103, which is used to regulate the separate movement of the caliper 103.

[0028] By setting a three-jaw chuck 1 and a separate adjustment component 2, the separate adjustment component 2 can make the three calipers 103 on the three-jaw chuck 1 adjustable individually. When the three calipers 103 are moved to the specified positions at the same time through the linkage 102, and the damaged spindle cannot be fully clamped, the position of one of the calipers 103 can be adjusted individually through the separate adjustment component 2, so that the three calipers 103 can clamp the damaged spindle to the maximum extent. Spindle clamping with different degrees of damage can be completed without replacing other types of chucks, which allows the user to independently choose to adjust the calipers 103 of the three-jaw chuck 1 in a linkage manner, or to adjust one of the calipers 103 individually to meet actual needs.

[0029] In one embodiment, the separate adjustment component 2 includes a fixed block 201 fixed on the linkage member 102 and an adjustment handle 202 passing through the side wall of the fixed block 201, a threaded rod 203 is fixedly provided at one end of the adjustment handle 202, the threaded rod 203 is rotatably provided on a side surface of the fixed block 201, and a threaded groove 204 adapted to the threaded rod 203 is provided at one end of the caliper 103 close to the fixed block 201.

[0030] With this design, when the three calipers 103 on the three-jaw chuck 1 are controlled to move synchronously through the linkage 102 and the damaged spindle cannot be completely clamped, the adjusting handle 202 on the corresponding caliper 103 is rotated. The rotation of the adjusting handle 202 will drive the threaded rod 203 to rotate. When the threaded rod 203 rotates in the threaded groove 204 opened in the caliper 103, the caliper 103 is driven to move, so that it moves forward or backward compared to the position of the other two calipers 103. When it moves to the appropriate position, the rotation of the adjusting handle 202 is stopped. At this time, the damaged spindle can be completely clamped by the calipers 103 in different positions. The caliper 103 that needs to be rotated separately here is rotated according to the actual situation. It can be to adjust one caliper 103, two calipers 103 or three calipers 103 separately, and there are no excessive restrictions.

[0031] In one embodiment, the separate adjustment component 2 includes a fixed block 201 arranged on the linkage member 102 and an adjustment handle 202 penetrating the side wall of the fixed block 201 , a threaded rod 203 is fixedly arranged at one end of the adjustment handle 202 , and a quick release component 3 is arranged at one end of the fixed block 201 .

[0032] The quick-release assembly 3 is designed in this way to allow the fixing block 201 to be removed from the linkage part 102. This is to prevent the caliper 103 from being damaged due to various factors during actual use. Under the prior art, disassembly of a single caliper 103 requires completely opening the chuck body 101, which is complicated and not conducive to the actual use of the three-jaw chuck 1.

[0033] In one embodiment, the quick-release assembly 3 includes a connecting block 301 fixedly arranged on one side of the fixing block 201 and symmetrically arranged, a connecting groove 302 adapted to the connecting block 301 is opened at one end of the linkage member 102, a limiting block 3011 is slidably arranged on one side of the connecting block 301, the limiting block 3011 is a triangular block, and a symmetrically arranged telescopic spring 3012 is fixedly arranged between the limiting block 3011 and the connecting block 301, the connecting groove 302 is L-shaped, a push block 305 is slidably arranged at one end of the connecting groove 302, a connecting rod 304 penetrating the side wall of the linkage member 102 is fixedly arranged at one end of the push block 305, and a pressing block 303 is fixedly arranged at the other end of the connecting rod 304.

[0034] With this design, when a caliper 103 is damaged, by pressing the pressing block 303 in the direction of approaching each other, the pressing block 303 will drive the pushing block 305 to move in the direction of approaching each other through the connecting rod 304, and the pushing block 305 will then squeeze the limiting block 3011 at the lower end of the connecting block 301 and move in the direction close to the connecting block 301. At this time, the telescopic spring 3012 is compressed. At this time, the separate caliper 103 can be quickly removed by lifting the fixing block 201 upwards, and then the caliper 103 can be separated from the threaded rod 203 by continuously rotating it. The caliper 103 can be replaced and installed by rotating one end of the caliper 103 to threadedly connect it to the threaded rod 203, and then align the connecting block 301 at the lower end of the fixed block 201 with the connecting groove 302 at one end of the linkage 102. At this time, the limit block 3011 will be squeezed by the side wall of the connecting groove 302, so that the telescopic spring 3012 will be squeezed synchronously. After it completely enters the connecting groove 302, the telescopic spring 3012 will lose its resistance and will rebound, driving the limit block 3011 to clamp the inner wall of the connecting groove 302. At this time, the installation of the caliper 103 is completed.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A special fixture for spindle maintenance and detection, comprising a three-jaw chuck (1) composed of a chuck body (101), three linkage parts (102) and a caliper (103), characterized in that: It further includes: A separate adjustment component (2) is arranged between the linkage member (102) and the caliper (103) for regulating the independent movement of the caliper (103).

2. The special fixture for spindle maintenance and detection according to claim 1, characterized in that: The separate adjustment component (2) includes a fixed block (201) fixedly arranged on the linkage member (102) and an adjustment handle (202) penetrating the side wall of the fixed block (201). One end of the adjustment handle (202) is fixedly provided with a threaded rod (203).

3. The special fixture for spindle maintenance and detection according to claim 2, characterized in that: The threaded rod (203) is rotatably arranged on one side surface of the fixed block (201), and a threaded groove (204) adapted to the threaded rod (203) is formed at one end of the caliper (103) close to the fixed block (201).

4. A special fixture for spindle maintenance and detection according to claim 1, characterized in that: The separate adjustment component (2) includes a fixed block (201) arranged on the linkage member (102) and an adjustment handle (202) penetrating the side wall of the fixed block (201). One end of the adjustment handle (202) is fixedly provided with a threaded rod (203), and a quick-release component (3) is arranged at one end of the fixed block (201).

5. The special fixture for spindle maintenance and detection according to claim 4, characterized in that: The quick-release component (3) includes connecting blocks (301) fixedly arranged on one side surface of the fixed block (201) and symmetrically arranged. A connecting groove (302) adapted to the connecting blocks (301) is formed at one end of the linkage member (102).

6. The special fixture for spindle repair and detection according to claim 5, characterized in that: A limiting block (3011) is slidably arranged on one side surface of the connecting block (301), and symmetrically arranged telescopic springs (3012) are fixedly arranged between the limiting block (3011) and the connecting block (301).

7. A special fixture for spindle maintenance and detection according to claim 6, characterized in that: The connecting groove (302) is L-shaped. A push block (305) is slidably arranged at one end of the connecting groove (302). One end of the push block (305) is fixedly provided with a connecting rod (304) penetrating the side wall of the linkage member (102), and the other end of the connecting rod (304) is fixedly provided with a pressing block (303).

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