V-axis milling clamp

Abstract

The utility model relates to a V-shaped groove shaft milling clamp for a frame circuit breaker, which belongs to the field of low-voltage electric appliance manufacture and comprises a bottom plate, a first abutting block capable of moving and adjusting along the surface of the bottom plate is arranged on the bottom plate, and a second abutting block capable of moving and adjusting along the surface of the bottom plate is arranged on the bottom plate. The first abutting block can abut against the second abutting block, the first abutting block and the second abutting block are each internally provided with a corresponding containing groove, the containing grooves can be used for containing V shafts and can clamp the V shafts, and a supporting assembly which is connected with the bottom plate and can support the V shafts in the containing grooves is arranged in the bottom plate. After the V-shaped groove shaft milling clamp is put into a workshop for use, the precision before milling is improved, the stability in the milling process is greatly improved, and the V-shaped groove shaft milling clamp is deeply loved by milling workers in the workshop.

Description

Technical Field

[0001] The utility model relates to a V-groove shaft milling fixture for a frame circuit breaker, belonging to the field of low-voltage electrical appliance manufacturing. Background Art

[0002] A V-groove shaft is a smooth shaft with large axial V-grooves at both ends, leaving only a small section of the entire circle in the middle. The traditional milling method is to clamp the shaft diameter with a flat-nose pliers for milling. Since one side of the flat-nose pliers is fixed, when the shaft diameter has a large deviation, it will cause the milled V-groove to have a symmetry error with the shaft centerline, affecting the assembly accuracy of the V-groove and the wheel. On the other hand, since the clamping point is in line contact, it is easy to clamp the workpiece, and it is also easy to cause the shaft to not be clamped tightly enough, resulting in inconsistent milling depth of the V-groove. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a V-axis milling fixture that solves the problems raised in the above-mentioned background technology.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a V-axis milling fixture, including a base plate, a first interference block that can be displaced and adjusted along the surface of the base plate is provided on the base plate, a second interference block that can be displaced and adjusted along the surface of the base plate is provided on the base plate, the first interference block can interfere with the second interference block, the first interference block and the second interference block are both provided with corresponding placement grooves, the placement grooves can be used to place the V-axis and can clamp the V-axis, and the base plate is provided with a support component connected to the base plate and capable of supporting the V-axis in the placement groove.

[0007] Furthermore, the first interference block is a front V-shaped block, and the second interference block is a rear V-shaped block. The front V-shaped block and the rear V-shaped block can move relative to each other along the surface of the bottom plate, and the cross-sectional shape of the placement groove is V-shaped.

[0008] Furthermore, a linear guide rail connected to the bottom plate is provided on the bottom plate, and sliders which can be connected to the front V-shaped block and the rear V-shaped block are respectively provided on the linear guide rail, and the two sliders can move relative to each other along the surface of the linear guide rail.

[0009] Furthermore, the base plate is provided with a front support plate connected to the base plate, the base plate is provided with a rear support plate connected to the base plate, a screw that can be inserted into the front V-shaped block and the rear V-shaped block is provided between the front support plate and the rear support plate, the screw is provided with a positive nut that can drive the front V-shaped block to move, and the screw is provided with a negative nut that can drive the rear V-shaped block to move.

[0010] Furthermore, the front support plate and the rear support plate are both provided with a one-way thrust bearing and a radial ball bearing that can contact the lead screw, and a gasket is provided between the one-way thrust bearing and the radial ball bearing.

[0011] Furthermore, the support assembly includes a support, in which a floating block capable of being displaced up and down and adjusted along the support is provided, and a positioning block capable of supporting the V-axis is provided on the surface of the floating block.

[0012] Furthermore, the bottom end of the floating block is hollowly arranged with the support and extends downward to the bottom plate. The bottom plate is provided with a nut that can limit the up and down displacement of the floating block. The support is provided with a set screw that can limit and lock the up and down displacement of the floating block. The surface of the positioning block can contact the front V-shaped block and the rear V-shaped block.

[0013] Furthermore, the support is provided with a compression spring which is hollowly arranged with the bottom end of the floating block and has elastic return, and the side wall of the floating block is provided with a vertical long groove which can be adapted to the set screw.

[0014] Furthermore, the support components are symmetrically arranged on both sides of the base plate and can support both ends of the V-axis respectively.

[0015] During operation, the lead screw is manually driven to rotate counterclockwise around the axis. Under the action of the nut, the front V-shaped block and the rear V-shaped block slide back to back along the slider and the linear guide rail, and the distance between the front V-shaped block and the rear V-shaped block is enlarged. The V-axis is placed in the V-groove between the front V-shaped block and the rear V-shaped block, and the front V-shaped block and the rear V-shaped block are fit together and can fit together with the positioning block. The lead screw is rotated clockwise to lock the V-axis, and then the set screws at both ends are tightened (Note: the outer circle of the other end of the V-axis is in contact with the positioning block, and the set screws are tightened to support both ends of the V-axis 21 at the same time, which is more stable during milling). Milling can be carried out. After milling of one end is completed, the V-axis is re-clamped and the V-groove at the other end is turned around to mill.

[0016] After a V-groove shaft milling fixture was put into use in the workshop, it not only improved the accuracy before milling, but also greatly improved the stability of the milling process, and was deeply loved by the milling workers in the workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 AA section view;

[0019] Figure 3 For this utility model Figure 1 BB cross-section view.

[0020] In the figure: 1. Screw; 3. Front support plate; 4. Orthogonal nut; 5. Front V-shaped block; 6. Rear V-shaped block; 7. Anti-thread nut; 8. Rear support plate; 9. Slider; 10. Linear guide; 11. Nut; 12. Compression spring; 13. Support; 14. Set screw; 15. Floating block; 16. Positioning block; 17. One-way thrust bearing; 18. Gasket; 19. Radial ball bearing; 21. V-axis; 23. Base plate; 24. Placement groove; 25. Support assembly; 26. First contact block; 27. Second contact block; 28. Vertical long groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figures 1 to 3The utility model provides a technical solution: a V-axis milling fixture, including a base plate 23, a first interference block 26 that can be displaced and adjusted along the surface of the base plate 23 is provided on the base plate 23, and a second interference block 27 that can be displaced and adjusted along the surface of the base plate 23 is provided on the base plate 23. The first interference block 26 can interfere with the second interference block 27. The first interference block 26 and the second interference block 27 are both provided with corresponding placement grooves 24. The first interference block 26 is a front V-shaped block 5, and the second interference block 27 is a rear V-shaped block 6. The front V-block 5 and the rear V-block 6 can move relative to each other along the surface of the base plate 23. The placement grooves 24 are The cross-sectional shape is V-shaped, and the placement groove 24 can be used to place the V-shaft 21 and can clamp the V-shaft 21. A linear guide 10 connected to the bottom plate 23 is provided on the bottom plate 23, and sliders 9 that can be connected to the front V-shaped block 5 and the rear V-shaped block 6 are respectively provided on the linear guide 10. The two sliders 9 can move relative to each other along the surface of the linear guide 10. A front support plate 3 connected to the bottom plate 23 is provided on the bottom plate 23, and a rear support plate 8 connected to the bottom plate 23 is provided on the bottom plate 23. A screw 1 that can be inserted into the front V-shaped block 5 and the rear V-shaped block 6 is provided between the front support plate 3 and the rear support plate 8, and a orthodontic nut 4 that can drive the front V-shaped block 5 to move is provided on the screw 1. The screw 1 is provided with an inverted nut 7 that can drive the rear V-shaped block 6 to move. The front support plate 3 and the rear support plate 8 are both provided with a one-way thrust bearing 17 and a radial ball bearing 19 that can contact the screw 1. A gasket 18 is provided between the one-way thrust bearing 17 and the radial ball bearing 19. The base plate 23 is provided with a support assembly 25 connected to the base plate 23 and capable of supporting the V-axis 21 in the placement groove 24. The support assembly 25 includes a support 13, and the support 13 is provided with a floating block 15 that can be moved up and down and adjusted along the support 13. The surface of the floating block 15 is provided with a positioning block 16 that can be used to support the V-axis 21. The bottom end of the floating block 15 It is set in an empty sleeve with the support 13 and extends downward to the base plate 23. The base plate 23 is provided with a nut 11 that can limit the up and down displacement of the floating block 15. The support 13 is provided with a locking screw 14 that can limit and lock the up and down displacement of the floating block 15. The surface of the positioning block 16 can contact the front V-shaped block 5 and the rear V-shaped block 6. The support 13 is provided with a compression spring 12 that is set in an empty sleeve with the bottom end of the floating block 15 and has elastic return. The side wall of the floating block 15 is provided with a vertical long groove 28 that can adapt to the locking screw 14. The support assembly 25 is symmetrically arranged on both sides of the base plate 23 and can support the two ends of the V-axis 21 respectively.

[0023] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to specific circumstances.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A V-axis milling fixture, comprising a base plate (23), characterized in that: The base plate (23) is provided with a first contact block (26) that can be displaced and adjusted along the surface of the base plate (23); the base plate (23) is provided with a second contact block (27) that can be displaced and adjusted along the surface of the base plate (23); the first contact block (26) can contact the second contact block (27); the first contact block (26) and the second contact block (27) are both provided with corresponding placement grooves (24); the placement grooves (24) can be used to place the V-axis (21) and can clamp the V-axis (21); the base plate (23) is provided with a support assembly (25) connected to the base plate (23) and capable of supporting the V-axis (21) in the placement groove (24).

2. A V-axis milling fixture according to claim 1, characterized in that: The first interference block (26) is a front V-shaped block (5), and the second interference block (27) is a rear V-shaped block (6). The front V-shaped block (5) and the rear V-shaped block (6) can move relative to each other along the surface of the bottom plate (23). The cross-section of the placement groove (24) is V-shaped.

3. A V-axis milling fixture according to claim 2, characterized in that: A linear guide rail (10) connected to the bottom plate (23) is provided on the bottom plate (23), and a slider (9) capable of being connected to the front V-shaped block (5) and the rear V-shaped block (6) is provided on the linear guide rail (10), respectively. The two sliders (9) can move relative to each other along the surface of the linear guide rail (10).

4. A V-axis milling fixture according to claim 3, characterized in that: A front support plate (3) connected to the bottom plate (23) is provided on the bottom plate (23), a rear support plate (8) connected to the bottom plate (23) is provided on the bottom plate (23), a lead screw (1) capable of being inserted into the front V-shaped block (5) and the rear V-shaped block (6) is provided between the front support plate (3) and the rear support plate (8), a positive thread nut (4) capable of driving the front V-shaped block (5) to move is provided on the lead screw (1), and a negative thread nut (7) capable of driving the rear V-shaped block (6) to move is provided on the lead screw (1).

5. The V-axis milling fixture according to claim 1, characterized in that: The front support plate (3) and the rear support plate (8) are both provided with a one-way thrust bearing (17) and a radial ball bearing (19) capable of contacting the lead screw (1), and a gasket (18) is provided between the one-way thrust bearing (17) and the radial ball bearing (19).

6. The V-axis milling fixture according to claim 1, characterized in that: The support assembly (25) includes a support (13), a floating block (15) capable of being displaced and adjusted up and down along the support (13) is provided in the support (13), and a positioning block (16) capable of supporting a V-axis (21) is provided on the surface of the floating block (15).

7. The V-axis milling fixture according to claim 6, characterized in that: The bottom end of the floating block (15) is hollowly arranged with the support (13) and extends downward to the bottom plate (23). The bottom plate (23) is provided with a nut (11) capable of limiting the vertical displacement of the floating block (15). The support (13) is provided with a set screw (14) capable of limiting and locking the vertical displacement of the floating block (15). The surface of the positioning block (16) can contact the front V-shaped block (5) and the rear V-shaped block (6).

8. The V-axis milling fixture according to claim 7, characterized in that: The support (13) is provided with a compression spring (12) which is loosely arranged with the bottom end of the floating block (15) and has elastic return. The side wall of the floating block (15) is provided with a vertical long groove (28) which can be matched with the set screw (14).

9. The V-axis milling fixture according to claim 6, characterized in that: The support components (25) are symmetrically arranged on both sides of the bottom plate (23) and can respectively support the two ends of the V-axis (21).

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