Fastening tool for slender shaft parts

Abstract

The utility model discloses a fastening tool for slender shaft parts. The tool comprises a base provided with a first groove; the spring sliding block is used for penetrating into the first groove and abutting against the end face of the first groove. A second groove and a third groove are formed in the spring sliding block; the eccentric positioning block is arranged on the base and fixedly connected with the base; a fourth groove and an eccentric positioning hole are formed in the eccentric positioning block; the first fastening block is used for penetrating into the second groove and is fixedly connected with the second groove; a first half groove is formed in one end of the first fastening block; the second fastening block is used for penetrating into the fourth groove and is fixedly connected with the fourth groove; a second half groove is formed in one end of the second fastening block; the second half groove and the first half groove are matched to form a round hole for allowing the slender shaft part to penetrate; the eccentric wheel is used for penetrating into the eccentric positioning hole and is matched with the third groove; when the eccentric wheel is rotated clockwise, the spring sliding block can be driven to move towards the first groove, then the first fastening block and the second fastening block are pressed tightly, and therefore the long and thin shaft part is fastened through the round hole.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, and more specifically, to a fastening tooling for slender shaft parts. Background Art

[0002] When processing slender shaft parts, clamping and fastening are required. In the prior art, a vise is used to clamp and fasten the slender shaft parts. Since both jaws of the vise are flat surfaces, when clamping an arc surface, it is a line contact, which easily causes unstable clamping and affects the positioning during processing.

[0003] Aiming at the problem of unstable clamping caused by clamping and fastening slender shaft parts with a vise in the prior art, no effective solution has been proposed yet. Summary of the Utility Model

[0004] An embodiment of the utility model provides a fastening tooling for slender shaft parts to solve the problem of unstable clamping caused by clamping and fastening slender shaft parts with a vise in the prior art.

[0005] To achieve the above object, the utility model provides a fastening tooling for slender shaft parts, which includes: a base, with a first groove provided in the middle of the base; a spring slider, the spring slider includes: a slider and a spring; the spring is fixedly connected to the tail end of the slider, and is used for when the spring slider penetrates into the first groove, the spring abuts against the end face of the first groove; a second groove and a third groove are provided on the slider; an eccentric positioning block, provided on the base and fixedly connected to the base; a fourth groove and an eccentric positioning hole are provided on the eccentric positioning block; a first fastening block, used to penetrate into the second groove and be fixedly connected to the spring slider; a first half groove is provided at one end of the first fastening block; a second fastening block, used to penetrate into the fourth groove and be fixedly connected to the eccentric positioning block; a second half groove is provided at one end of the second fastening block; the second half groove and the first half groove cooperate to form a circular hole for a slender shaft part to penetrate; an eccentric wheel, used to penetrate into the eccentric positioning hole and cooperate with the third groove; when the eccentric wheel is rotated clockwise, the spring slider can be driven to move towards the first groove, and then the first fastening block and the second fastening block are pressed together, so as to fasten the slender shaft part by the circular hole.

[0006] Optionally, the base includes: a bottom plate and a bottom block; the bottom block is fixedly provided on the bottom plate; the first groove is provided on the bottom block for the spring slider to penetrate into.

[0007] Optionally, the slider is of an L-shaped structure, including: a vertical block and a horizontal block fixedly connected; the second groove is provided on the vertical block; the third groove is provided on the horizontal block.

[0008] Optionally, the fourth groove is provided at one end of the eccentric positioning block; the fourth groove corresponds to the second groove; the eccentric positioning hole is provided in the middle of the eccentric positioning block.

[0009] Optionally, the eccentric wheel includes: an eccentric cylinder and a handle; the handle is fixedly connected to the top end of the eccentric cylinder; the eccentric cylinder is used to penetrate into the eccentric positioning hole and cooperate with the third groove.

[0010] Optionally, the eccentric wheel further includes: a nut and a gasket; the nut is used to pass through the eccentric cylinder to fix the eccentric cylinder and the eccentric positioning block; the gasket is arranged between the top surface of the eccentric positioning block and the nut.

[0011] Optionally, the first groove is a U-shaped groove; the second groove is a U-shaped groove; the third groove is a circular groove; the fourth groove is a U-shaped groove.

[0012] Optionally, the eccentric positioning block and the base are fixedly connected by screws and positioning pins.

[0013] Optionally, the first fastening block and the second groove are fixedly connected by the screw.

[0014] Optionally, the second fastening block and the fourth groove are fixedly connected by the screw.

[0015] Advantages of the present utility model:

[0016] The present utility model provides a fastening tooling for slender shaft parts. The tooling includes: a base, with a first groove provided in the middle of the base; a spring slider, the spring slider includes: a slider and a spring; the spring is fixedly connected to the tail end of the slider, and when the spring slider penetrates into the first groove, the spring abuts against the end face of the first groove; a second groove and a third groove are provided on the slider; an eccentric positioning block, which is arranged on the base and fixedly connected to the base; a fourth groove and an eccentric positioning hole are provided on the eccentric positioning block; a first fastening block, which is used to penetrate into the second groove and is fixedly connected to the spring slider; a first half groove is provided at one end of the first fastening block; a second fastening block, which is used to penetrate into the fourth groove and is fixedly connected to the eccentric positioning block; a second half groove is provided at one end of the second fastening block; the second half groove and the first half groove cooperate to form a circular hole for the slender shaft parts to penetrate; an eccentric wheel, which is used to penetrate into the eccentric positioning hole and cooperate with the third groove; when the eccentric wheel is rotated clockwise, the spring slider can be driven to move towards the first groove, so that the first fastening block and the second fastening block are pressed together, thereby fastening the slender shaft parts by the circular hole. Through this tooling, the clamping and fastening of slender shaft parts can be realized, and thus the processing efficiency of slender shaft parts can be improved. Description of the Drawings

[0017] Figure 1 is the front sectional view of the fastening tooling for slender shaft parts provided by the embodiment of the present utility model;

[0018] Figure 2 is the top view of the fastening tooling for slender shaft parts provided by the embodiment of the present utility model;

[0019] Figure 3 is the front view of the base provided by the embodiment of the present utility model;

[0020] Figure 4 is the top view of the base provided by the embodiment of the present utility model;

[0021] Figure 5 is the top view of the spring slider provided by the embodiment of the present utility model;

[0022] Figure 6 is the front view of the slider provided by the embodiment of the present utility model;

[0023] Figure 7 is the front view of the eccentric positioning block and the eccentric wheel provided by the embodiment of the present utility model;

[0024] Figure 8 is the top view of the eccentric positioning block and the eccentric wheel provided by the embodiment of the present utility model;

[0025] Figure 9It is the front view of the first fastening block provided by the embodiment of the present utility model;

[0026] Figure 10 It is the top view of the first fastening 4 block provided by the embodiment of the present utility model;

[0027] Figure 11 It is the front view of the second fastening block provided by the embodiment of the present utility model;

[0028] Figure 12 It is the top view of the second fastening block provided by the embodiment of the present utility model.

[0029] Symbol description:

[0030] Base - 1, spring slider - 2, eccentric positioning block - 3, first fastening block - 4, second fastening block - 5, eccentric wheel - 6, bottom plate - 11, bottom block - 12, first groove - 13, slider - 21, spring - 22, second groove - 23, third groove - 24, fourth groove - 31, eccentric positioning hole - 32, first half groove - 41, second half groove - 51, eccentric cylinder - 61, handle - 62, nut - 63, gasket - 64, threaded hole - 7, positioning pin hole - 8, round hole - 9. Detailed implementation manners

[0031] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0032] When machining slender shaft - type parts, clamping and fastening are required. In the prior art, a vise is used to clamp and fasten slender shaft - type parts. Since both jaws of the vise are flat surfaces, when clamping an arc surface, it is a line contact, which is prone to the phenomenon of unstable clamping and affects the positioning during machining.

[0033] Therefore, the present utility model provides a fastening tooling dedicated to slender shaft - type parts, Figure 1 It is the front cross - sectional view of the fastening tooling for slender shaft - type parts provided by the embodiment of the present utility model; Figure 2 It is the top view of the fastening tooling for slender shaft - type parts provided by the embodiment of the present utility model; As Figure 1 and Figure 2 shown, the fastening tooling includes:

[0034] 1. Base 1, Figure 3 It is the front view of the base 1 provided by the embodiment of the present utility model; Figure 4 It is the top view of the base 1 provided by the embodiment of the present utility model; AsFigure 3 and Figure 4 As shown in Figure 4 , a first groove 13 is provided in the middle of the base 1;

[0035] Specifically, the base 1 includes a bottom plate 11 and a bottom block 12; the bottom block 12 is fixedly arranged on the bottom plate 11, and the base 1 is an integral structure; the base 1 is made of 45# steel, which is not easily deformed after quenching and has a relatively large rigidity. Notches are provided on both the left and right sides of the bottom plate 11 for the screw to pass through to fix the bottom plate 11 on the workbench. The first groove 13 is provided on the bottom block 12 for the spring slider 2 to pass through; the first groove 13 is a U-shaped groove (that is, the left side of the first groove 13 is an open structure and the right side is a closed structure). A positioning pin hole 8 and a threaded hole 7 are machined on the upper surface of the bottom block 12; specifically, in the present utility model, three positioning pin holes 8 and four threaded holes 7 are machined on the upper surface of the bottom block 12.

[0036] 2. Spring slider 2, Figure 5 is a top view of the spring slider 2 provided by the embodiment of the present utility model; the spring slider 2 includes: a slider 21 and a spring 22; the spring 22 is fixedly connected to the tail end of the slider 21, and is used for when the spring slider 2 passes into the first groove 13, the spring 22 abuts against the end face of the first groove 13 (that is, the closed face on the right side of the first groove 13); the slider 21 is also made of 45# steel. In a specific embodiment of the present utility model, two compressible springs 22 are fixedly connected to the tail end of the slider 21.

[0037] A second groove 23 and a third groove 24 are provided on the slider 21; Figure 6 is a front view of the slider 21 provided by the embodiment of the present utility model; as Figure 6 shown, the slider 21 is an L-shaped structure, including: a vertically connected vertical block and a horizontal block; the second groove 23 is provided on the vertical block; the third groove 24 is provided on the horizontal block. Specifically, the second groove 23 is a U-shaped groove (the right side of the U-shaped groove is an open structure and the left side is a closed structure); the third groove 24 is a circular groove. Threaded holes 7 are provided on the second groove 23. In a specific embodiment of the present utility model, two threaded holes 7 are provided on the second groove 23.

[0038] 3. Eccentric positioning block 3, Figure 7 is a front view of the eccentric positioning block 3 and the eccentric wheel 6 provided by the embodiment of the present utility model; Figure 8 is a top view of the eccentric positioning block 3 and the eccentric wheel 6 provided by the embodiment of the present utility model; as Figure 7 and Figure 8As shown, the eccentric positioning block 3 is provided on the base 1 and fixedly connected to the base 1. In a specific embodiment of the present invention, three positioning pin holes 8 and four threaded holes 7 are provided on the eccentric positioning block 3, which correspond to the three positioning pin holes 8 and four threaded holes 7 on the base 1 one by one. The eccentric positioning block 3 and the base 1 are fixedly connected by screws and positioning pins. That is, four screws respectively pass through the four threaded holes 7 on the base 1 and the eccentric positioning block 3 one by one, and three positioning pins respectively pass through the three positioning pin holes 8 on the base 1 and the eccentric positioning block 3 one by one, thereby fixedly connecting the base 1 and the eccentric positioning block 3.

[0039] A fourth groove 31 and an eccentric positioning hole 32 are provided on the eccentric positioning block 3. The fourth groove 31 is provided at one end (i.e., the left side) of the eccentric positioning block 3. The fourth groove 31 corresponds to the second groove 23. The fourth groove 31 is a U-shaped groove (the left side of the U-shaped groove is an open structure, and the right side is a closed structure). Two threaded holes 7 are provided on the fourth groove 31. In a specific embodiment of the present invention, two threaded holes 7 are provided on the fourth groove 31.

[0040] The eccentric positioning hole 32 is provided in the middle of the eccentric positioning block 3.

[0041] 4. The first fastening block 4 Figure 9 is the front view of the first fastening block 4 provided by the embodiment of the present invention; Figure 10 is the top view of the first fastening block 4 provided by the embodiment of the present invention; As Figure 9 and Figure 10 shown, the first fastening block 4 is used to penetrate into the second groove 23 and is fixedly connected to the spring slider 2. A first half groove 41 is provided at one end of the first fastening block 4.

[0042] The first fastening block 4 is an L-shaped structure. Two threaded holes 7 are provided on the first fastening block 4. In a specific embodiment, two screw holes are provided on the first fastening block 4. The first fastening block 4 and the second groove 23 are fixedly connected by the screws. That is, two screws respectively pass through the two threaded holes 7 of the first fastening block 4 and the second groove 23 one by one, and the first fastening block 4 is fixed in the second groove 23.

[0043] A first half groove 41 is provided at one end of the first fastening block 4, and the first half groove 41 is a semi-circular groove.

[0044] 5. The second fastening block 5 Figure 11 is the front view of the second fastening block 5 provided by the embodiment of the present invention; Figure 12 is the top view of the second fastening block 5 provided by the embodiment of the present invention; AsFigure 11 and Figure 12 As shown in Figure 12 , the second fastening block 5 is used to penetrate into the fourth groove 31 and fixedly connected with the eccentric positioning block 3; a second half groove 51 is arranged at one end of the second fastening block 5; the second half groove 51 and the first half groove 41 cooperate to form a round hole 9 for a slender shaft-like part to penetrate into;

[0045] The second fastening block 5 is in a 7-shaped structure; the second fastening block 5 is adapted to the first fastening block 4; a threaded hole 7 is arranged on the second fastening block 5. In a specific embodiment, two screw holes are arranged on the second fastening block 5; the second fastening block 5 and the fourth groove 31 are fixedly connected by the screws. That is, two screws respectively pass through the two threaded holes 7 of the second fastening block 5 and the fourth groove 31 one by one to fix the second fastening block 5 in the fourth groove 31.

[0046] A second half groove 51 is arranged at one end of the second fastening block 5; the second half groove 51 is a semi-circular groove. The second half groove 51 and the first half groove 41 cooperate to form a round hole 9 for a slender shaft-like part to penetrate into; when the first pressing block and the second pressing block are correspondingly pressed, the round hole 9 formed by the first half groove 41 and the second half groove 51 can press the slender shaft-like part.

[0047] 6. An eccentric wheel 6 is used to penetrate into the eccentric positioning hole 32 and cooperate with the third groove 24; when the eccentric wheel 6 is rotated clockwise, the spring slider 2 can be driven to move towards the first groove 13, so that the first fastening block 4 and the second fastening block 5 are pressed, and thus the round hole 9 fastens the slender shaft-like part.

[0048] Specifically, the eccentric wheel 6 includes: an eccentric cylinder 61 and a handle 62; the handle 62 is fixedly connected to the top of the eccentric cylinder 61; the eccentric cylinder 61 is used to penetrate into the eccentric positioning hole 32 and cooperate with the third groove 24.

[0049] The eccentric wheel 6 further includes: a nut 63 and a gasket 64; the nut 63 is used to pass through the top of the eccentric cylinder 61 to fix the eccentric cylinder 61 and the eccentric positioning block 3; the gasket 64 is arranged between the top surface of the eccentric positioning block 3 and the nut 63, and it can prevent the nut 63 from damaging the eccentric positioning block 3.

[0050] During specific operation, by rotating the handle 62 clockwise, the eccentric cylinder 61 can also be rotated, and then the spring slider 2 can be driven to move towards the end face of the first groove 13 through the third groove 24 on the spring slider 2. At this time, the first fastening block 4 on the spring slider 2 moves towards the second fastening block 5, achieving the pressing of the first fastening block 4 and the second fastening block 5, so that the circular hole 9 formed by the first half groove 41 and the second half groove 51 fastens the slender shaft-like part.

[0051] If the handle 62 is rotated counterclockwise, the first fastening block 4 and the second fastening block 5 can be loosened, and then the circular hole 9 formed by the first half groove 41 and the second half groove 51 no longer fastens the slender shaft-like part.

[0052] The following is an illustration of the present utility model through a specific embodiment:

[0053] 1. Fasten the first fastening block 4 to the second groove 23 of the spring slider 2 through two screws;

[0054] 2. Fasten the second fastening block 5 to the fourth groove 31 of the eccentric positioning block 3 through two screws;

[0055] 3. Place the spring slider 2 into the first groove 13 of the base 1, and push the spring slider 2 tightly to ensure that the spring 22 at the tail end of the slider 21 is in a compressed state;

[0056] 4. Insert the eccentric cylinder 61 into the eccentric positioning hole 32 of the eccentric positioning block 3 and achieve positioning with the third groove 24 on the upper surface of the spring slider 2;

[0057] 5. Fix the eccentric positioning block 3 to the base 1;

[0058] 6. Insert the slender shaft-like part into the circular hole 9 formed by the first half groove 41 and the second half groove 51, and rotate the handle 62 clockwise. When the handle 62 rotates, the eccentric cylinder 61 also rotates accordingly, and then the spring slider 2 is driven to move towards the end face of the first groove 13 through the third groove 24 on the spring slider 2. At this time, the first fastening block 4 on the spring slider 2 moves towards the second fastening block 5, achieving the pressing of the first fastening block 4 and the second fastening block 5, so that the circular hole 9 formed by the first half groove 41 and the second half groove 51 fastens the slender shaft-like part;

[0059] 7. Process the fastened slender shaft-like part;

[0060] 8. Rotate the handle 62 counterclockwise, then the first fastening block 4 and the second fastening block 5 can be loosened, and then the circular hole 9 formed by the first half groove 41 and the second half groove 51 no longer fastens the slender shaft-like part, but at this time the spring 22 is still in a compressed state;

[0061] 9. Remove the eccentric cylinder 61 from the third groove 24 of the spring slider 2. At this time, push the spring slider 2 away from the base 1 so that the spring 22 is no longer in a compressed state and is away from the end face of the first groove 13 of the base 1.

[0062] The tooling of the utility model has a simple structure and is convenient for disassembly; through this tooling, the clamping and fastening of slender shaft parts can be realized, thereby improving the processing efficiency of slender shaft parts.

[0063] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fastening tool for slender shaft parts, characterized in that: include: A base, wherein a first groove is provided in the middle of the base; A spring slider, the spring slider comprising: a slider and a spring; the spring is fixedly connected to the tail end of the slider, and is used for pressing against the end surface of the first groove when the spring slider penetrates into the first groove; a second groove and a third groove are provided on the slider; An eccentric positioning block is provided on the base and fixedly connected to the base; a fourth groove and an eccentric positioning hole are provided on the eccentric positioning block; A first fastening block, used to penetrate into the second groove and be fixedly connected to the spring slider; a first half groove is provided at one end of the first fastening block; A second fastening block is used to penetrate into the fourth groove and be fixedly connected to the eccentric positioning block; a second half groove is provided at one end of the second fastening block; the second half groove cooperates with the first half groove to form a circular hole for passing slender shaft parts; The eccentric wheel is used to penetrate into the eccentric positioning hole and cooperate with the third groove; when the eccentric wheel is rotated clockwise, it can drive the spring slider to move toward the first groove, thereby pressing the first fastening block and the second fastening block, so that the circular hole fastens the slender shaft part.

2. The fastening tool for slender shaft parts according to claim 1 is characterized in that: The base comprises: a bottom plate and a bottom block; the bottom block is fixedly arranged on the bottom plate; the first groove is arranged on the bottom block for the spring slider to penetrate.

3. The fastening tool for slender shaft parts according to claim 2 is characterized in that: The sliding block is an L-shaped structure, comprising: a vertical block and a horizontal block that are fixedly connected; the second groove is arranged on the vertical block; and the third groove is arranged on the horizontal block.

4. The fastening tool for slender shaft parts according to claim 3 is characterized in that: The fourth groove is arranged at one end of the eccentric positioning block; the fourth groove corresponds to the second groove; The eccentric positioning hole is arranged in the middle of the eccentric positioning block.

5. The fastening tool for slender shaft parts according to claim 4 is characterized in that: The eccentric wheel comprises: an eccentric cylinder and a handle; the handle is fixedly connected to the top end of the eccentric cylinder; the eccentric cylinder is used to penetrate into the eccentric positioning hole and cooperate with the third groove.

6. The fastening tool for slender shaft parts according to claim 5, characterized in that: The eccentric wheel also includes: a nut and a gasket; The nut is used to pass through the eccentric cylinder to fix the eccentric cylinder and the eccentric positioning block; the gasket is arranged between the top surface of the eccentric positioning block and the nut.

7. The fastening tool for slender shaft parts according to claim 6, characterized in that: The first groove is a U-shaped groove; the second groove is a U-shaped groove; the third groove is a circular groove; and the fourth groove is a U-shaped groove.

8. The fastening tool for slender shaft parts according to claim 1, characterized in that: The eccentric positioning block is fixedly connected to the base via screws and positioning pins.

9. The fastening tool for slender shaft parts according to claim 8, characterized in that: The first fastening block and the second groove are fixedly connected by the screw.

10. The fastening tool for slender shaft parts according to claim 8, characterized in that: The second fastening block is fixedly connected to the fourth groove by means of the screw.

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