Tailstock capable of being finely adjusted

Abstract

The utility model belongs to the technical field of tail brackets, and particularly relates to a fine-adjustable tail bracket. Which comprises a tailstock body, a base is arranged on the lower portion of the tailstock body, a tailstock is arranged at one end of the base, a tailstock sleeve is arranged on the tailstock, the base comprises an upper base body and a lower base body which are arranged in a spaced mode, the end, provided with the tailstock, of the upper base body and the end, provided with the tailstock, of the lower base body are connected into a whole, and a gap is formed between the upper base body and the lower base body. A through hole penetrating through the upper seat body is formed in the upper seat body, a fine adjustment device is arranged in the through hole, the lower end of the fine adjustment device abuts against the upper plane of the lower seat body, and the center position of a tailstock sleeve on the tailstock is finely adjusted; deformation is generated between the upper seat body and the lower seat body through the fine adjustment device, the center of the tailstock sleeve arranged on the tailstock is finally driven to be finely adjusted, the purpose of finely adjusting the concentricity of the headstock main shaft and the tailstock sleeve is achieved, adjustment is rapid and convenient, and the fine adjustment device can be suitable for machining of various products.

Description

Technical field:

[0001] The utility model belongs to the technical field of tailstocks, in particular to a fine-adjustable tailstock. Background technology:

[0002] The tailstock is one of the important parts of the CNC cylindrical grinder. When the grinder is grinding the workpiece, the tailstock cooperates with the headstock to support and center the workpiece. When processing different types of products, the tailstock needs to be moved, but after moving the tailstock, the concentricity of the headstock spindle and the tailstock sleeve center will change, which will eventually cause the workpiece to have a taper after grinding, resulting in unqualified products. The existing adjustment method is to adjust by moving the worktable, which is very inconvenient. Summary of the invention:

[0003] The utility model aims to provide a fine-adjustable tailstock which is easy to adjust and convenient for processing various types of products.

[0004] The utility model is achieved in this way:

[0005] A fine-adjustable tailstock comprises a tailstock body, the lower part of the tailstock body is a base, a tailstock is arranged at one end of the base, a tailstock sleeve is arranged on the tailstock, the base comprises an upper seat body and a lower seat body arranged at intervals, the upper seat body and the lower seat body are connected as a whole at one end where the tailstock is arranged, a gap is arranged between the upper seat body and the lower seat body, a through hole penetrating the upper seat body is arranged on the upper seat body, a fine-adjustment device is arranged in the through hole, the lower end of the fine-adjustment device abuts against the upper plane of the lower seat body, and the center position of the tailstock sleeve on the tailstock is fine-adjusted.

[0006] In the above-mentioned fine-adjustable tailstock, the base is further provided with a through hole whose axis is arranged in a horizontal direction, and the through hole is communicated with the gap.

[0007] In the above-mentioned fine-tuning tailstock, the fine-tuning device includes an adjusting sleeve fixedly mounted on the upper seat body, the lower end of the adjusting sleeve is located in the through hole, a fine-tuning hole is arranged in the adjusting sleeve, the upper part of the fine-tuning hole is a threaded hole, and the lower part is provided with a fine-tuning nut, the screw rod of the fine-tuning screw is respectively threadedly connected with the threaded hole and the fine-tuning nut, and the lower end of the fine-tuning nut is in contact with the upper plane of the lower seat body, and the fine-tuning nut is rotated to adjust the upper and lower positions of the fine-tuning nut.

[0008] In the above-mentioned fine-adjustable tailstock, the adjustment sleeve includes a flange and a sleeve located on the bottom surface of the flange, the flange is fixedly connected to the upper seat body by screws, and the sleeve is arranged in the through hole.

[0009] In the above-mentioned fine-adjustable tailstock, a limit screw is arranged on the side wall of the sleeve, and a strip groove arranged along the up and down direction is arranged on the outer cylindrical surface of the fine-tuning nut. One end of the limit screw is screwed on the sleeve and the other end extends into the strip groove.

[0010] In the above-mentioned fine-adjustable tailstock, a spring sheet is arranged on one side of the upper seat body and the lower seat body away from the tailstock, the spring sheet includes an upper fixing hole, a lower fixing hole and an arc-shaped portion located between the upper fixing hole and the lower fixing hole, the upper end of the spring sheet is arranged on the upper seat body, and the lower end is arranged on the lower seat body.

[0011] In the above-mentioned fine-adjustable tailstock, positioning side plates are respectively arranged on the upper seat body and the lower seat body on both sides of the spring sheet.

[0012] In the above-mentioned fine-adjustable tailstock, the upper end of the positioning side plate is connected to the upper seat body by screws, and the lower end is provided with a strip hole with a long axis arranged in the up-down direction, and the screw passes through the strip hole and is screwed to the lower seat body.

[0013] The outstanding advantages of the utility model compared with the prior art are:

[0014] The utility model uses a fine-tuning device to cause deformation between the upper seat body and the lower seat body, and finally drives the center of the tailstock sleeve arranged on the tailstock to produce fine adjustment, so as to achieve the purpose of fine-tuning the concentricity of the headstock spindle and the tailstock sleeve. The adjustment is fast and convenient, and can be suitable for the processing of various types of products. Description of the drawings:

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the tailstock guard cover and the tailstock fixing block guard cover of the utility model after being disassembled;

[0018] Figure 4 It is a schematic diagram of the tailstock body of the utility model;

[0019] Figure 5 It is a front view of the adjustment sleeve of the utility model;

[0020] Figure 6 yes Figure 5 AA section view;

[0021] Figure 7 It is a cross-sectional view of one embodiment of the fine-tuning device of the utility model;

[0022] Figure 8 It is a schematic diagram of the fine-tuning nut of the utility model.

[0023] In the figure: 1, tailstock body; 2, tailstock; 3, tailstock sleeve; 4, upper seat body; 5, lower seat body; 6, gap; 7, through hole; 8, through hole; 9, adjustment sleeve; 10, fine-tuning hole; 11, fine-tuning nut; 12, fine-tuning screw; 13, flange; 14, sleeve; 15, limit screw; 16, 17, spring sheet; 18, positioning side plate; 19, strip hole; 20, tailstock cover; 21, tailstock fixing block cover. Specific implementation method:

[0024] The present invention is further described below with specific embodiments:

[0025] like Figure 1-8 As shown, the utility model provides a fine-adjustable tailstock, including a tailstock body 1, the lower part of the tailstock body 1 is a base, a tailstock 2 is arranged at one end of the base, a tailstock sleeve 3 is arranged on the tailstock 2, the base includes an upper seat body 4 and a lower seat body 5 arranged up and down, the upper seat body 4 and the lower seat body 5 are connected as a whole at one end where the tailstock 2 is arranged, a gap 6 is arranged between the upper seat body 4 and the lower seat body 5, and a through hole 7 is arranged at the inner end of the gap 6 along the horizontal direction of an axis. Such arrangement enables a certain deformation to occur between the upper seat body 4 and the lower seat body 5. A through hole 8 penetrating the upper seat body 4 is arranged on the upper seat body 4, a fine-tuning device is arranged in the through hole 8, the lower end of the fine-tuning device abuts against the upper plane of the lower seat body 5, and the center position of the tailstock sleeve 3 on the tailstock 2 is fine-tuned. The arrangement of the through hole 7 is conducive to the deformation between the upper seat body 4 and the lower seat body 5 due to the action of the fine-tuning device, and the tailstock sleeve 3 on the tailstock 2 is fine-tuned.

[0026] like Figure 2 As shown, the fine-tuning device includes an adjusting sleeve 9 fixed on the upper seat body 4, the lower end of the adjusting sleeve 9 is located in the through hole 8, a fine-tuning hole 10 is arranged in the adjusting sleeve 9, the upper part of the fine-tuning hole 10 is a threaded hole, and the lower part is provided with a fine-tuning nut 11, the screw rod of the fine-tuning screw 12 is respectively threadedly connected with the threaded hole and the fine-tuning nut 11, and the lower end of the fine-tuning nut 11 is in contact with the upper plane of the lower seat body 5, and the fine-tuning screw 12 is rotated to adjust the upper and lower positions of the fine-tuning nut 11.

[0027] When the tailstock moves according to the size of the workpiece, the fine-tuning screw 12 is rotated to drive the fine-tuning nut 11 to move up and down, so that the force of the fine-tuning nut 11 against the lower seat body 5 changes, and then the deformation between the upper seat body 4 and the lower seat body 5 changes, and finally the center position of the tailstock sleeve 3 installed on the tailstock 2 changes. In the fine-tuning process, it is also necessary to cooperate with the measuring instrument to finally achieve the purpose of adjusting the concentricity between the headstock spindle and the tailstock sleeve 3.

[0028] As described above, the utility model can achieve fine adjustment by rotating the fine adjustment screw 12, and the adjustment is fast and convenient, which is suitable for processing various types of products and improves versatility.

[0029] Further, if Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the adjustment sleeve 9 includes a flange 13 and a sleeve 14 located on the bottom surface of the flange 13. The flange 13 is fixedly connected to the upper seat body 4 through a fastener, and the sleeve 14 is arranged in the through hole 8. Generally speaking, the fastener is a screw.

[0030] In order to prevent the fine-tuning nut 11 from rotating, a limit screw 15 is provided on the side wall of the sleeve 14, and a strip groove 16 is provided on the outer cylindrical surface of the fine-tuning nut 11 along the up-down direction. One end of the limit screw 15 is screwed on the sleeve 14, and the other end extends into the strip groove 16. In this way, the sleeve 14 can be prevented from being unable to move up and down as the fine-tuning screw 12 rotates. In addition, the strip groove 16 can also limit the stroke of the fine-tuning nut 11 moving up and down.

[0031] like Figure 2 and Figure 3 As shown, a spring sheet 17 is provided on one side of the upper seat body 4 and the lower seat body 5 away from the tailstock 2. The spring sheet 17 includes an upper fixing hole, a lower fixing hole and an arc portion located between the upper fixing hole and the lower fixing hole. The upper end of the spring sheet 17 is screwed through the upper fixing hole and is arranged on the upper seat body 4, and the lower end of the spring sheet 17 is screwed through the lower fixing hole and is arranged on the lower seat body 5. The arrangement of the spring sheet 17 facilitates the resetting of the upper seat body 4.

[0032] In addition, if Figure 1 and Figure 3 As shown, positioning side plates 18 are respectively provided on the upper seat body 4 and the lower seat body 5 on both sides of the spring sheet 17. The upper end of the positioning side plate 18 is fixedly connected to the upper seat body 4 by screws, and a strip hole 19 is provided at the lower end. The long axis of the strip hole 19 is arranged in the up-down direction, and the screw passes through the strip hole 19 and is screwed to the lower seat body 5. When the fine-tuning device is fine-tuned, the screw on the strip hole 19 is loosened, and the screw is tightened after the fine-tuning is completed.

[0033] It should be noted that if Figure 1 and Figure 2 As shown, the utility model is provided with a tailstock shield 20 outside the tailstock body 1, a tailstock fixing block is provided on one side of the tailstock body 1, and a tailstock fixing block shield 21 is provided outside the tailstock fixing block.

[0034] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fine-adjustable tailstock, characterized in that: The invention comprises a tailstock body (1), the lower part of which is a base, a tailstock (2) is arranged at one end of the base, a tailstock sleeve (3) is arranged on the tailstock (2), the base comprises an upper base body (4) and a lower base body (5) which are arranged at intervals, the upper base body (4) and the lower base body (5) are connected as a whole at one end where the tailstock (2) is arranged, a gap (6) is arranged between the upper base body (4) and the lower base body (5), a through hole (8) penetrating the upper base body (4) is arranged on the upper base body (4), a fine adjustment device is arranged in the through hole (8), the lower end of the fine adjustment device abuts against the upper plane of the lower base body (5) to finely adjust the center position of the tailstock sleeve (3) on the tailstock (2).

2. The fine-adjustable tailstock according to claim 1, characterized in that: The base is also provided with a through hole (7) whose axis is arranged in a horizontal direction, and the through hole (7) is connected with the gap (6).

3. A finely adjustable tailstock according to claim 1 or 2, characterized in that: The fine-tuning device comprises an adjusting sleeve (9) fixedly mounted on the upper seat body (4), the lower end of the adjusting sleeve (9) being located in the through hole (8), a fine-tuning hole (10) being arranged in the adjusting sleeve (9), the upper part of the fine-tuning hole (10) being a threaded hole, and the lower part being provided with a fine-tuning nut (11), the screw rod of the fine-tuning screw (12) being threadedly connected with the threaded hole and the fine-tuning nut (11), respectively, and the lower end of the fine-tuning nut (11) being in contact with the upper plane of the lower seat body (5), and the fine-tuning nut (11) being rotated to adjust the upper and lower positions of the fine-tuning nut (11).

4. The fine-adjustable tailstock according to claim 3, characterized in that: The adjusting sleeve (9) comprises a flange (13) and a sleeve (14) located on the bottom surface of the flange (13); the flange (13) is fixedly connected to the upper seat (4) by screws; and the sleeve (14) is arranged in the through hole (8).

5. The fine-adjustable tailstock according to claim 4, characterized in that: A limit screw (15) is arranged on the side wall of the sleeve (14), and a strip groove (16) arranged in the up-down direction is arranged on the outer cylindrical surface of the fine-tuning nut (11). One end of the limit screw (15) is screwed on the sleeve (14) and the other end extends into the strip groove (16).

6. A finely adjustable tailstock according to claim 1 or 2, characterized in that: A spring sheet (17) is arranged on one side of the upper seat body (4) and the lower seat body (5) away from the tailstock. The spring sheet (17) comprises an upper fixing hole, a lower fixing hole and an arc-shaped portion located between the upper fixing hole and the lower fixing hole. The upper end of the spring sheet (17) is arranged on the upper seat body (4) and the lower end is arranged on the lower seat body (5).

7. The finely adjustable tailstock according to claim 6, characterized in that: Positioning side plates (18) are respectively arranged on the upper seat body (4) and the lower seat body (5) on both sides of the spring sheet (17).

8. The fine-adjustable tailstock according to claim 7, characterized in that: The upper end of the positioning side plate (18) is connected to the upper seat body (4) by means of screws, and the lower end is provided with a strip hole (19) with a long axis arranged in the up-down direction, and the screw passes through the strip hole (19) and is screwed to the lower seat body (5).

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