Fixture for fixing circular part of numerical control milling machine

Abstract

The utility model relates to the technical field of numerical control milling machines, in particular to a numerical control milling machine circular part fixing clamp which comprises a base, guide sliding grooves are formed in the periphery of the top of the base, a driving motor is fixedly installed at the middle end of the bottom of an inner cavity of the base, and the output end of the driving motor is fixedly connected with a rotating rod. The end, away from the driving motor, of the rotating rod is movably connected with the top of the base inner cavity through a bearing. A driving motor drives a rotating rod and a driving bevel gear to rotate, four first threaded rods can be driven to rotate at the same time under the cooperation of a driven bevel gear connected in a meshed mode, the first threaded rods can drive a movable plate to approach a fixed plate when rotating, and the movable plate can move in the direction of the fixed plate under the assistance of a guide sliding groove when moving. And the clamping and positioning rods are driven by the connecting blocks to contract inwards, so that the peripheries of the circular parts of different specifications can be quickly clamped, the clamping stability is high, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control milling machines, in particular to a fixing fixture for circular parts of numerical control milling machines. Background Art

[0002] CNC milling machine, also known as CNC milling machine, is an automatic processing equipment developed on the basis of milling machine, which is often used in the processing and production of parts. The fixing fixture of CNC milling machine is mainly composed of base and fixture body. During use, the staff fixes the parts on the fixture, and then starts the CNC milling machine body, and the parts are processed under the action of CNC milling machine.

[0003] At present, the existing fixing fixtures used for CNC milling machines can only clamp and fix parts of the same size during use, and it is difficult to clamp and fix circular parts of different sizes, resulting in poor applicability of the fixture. If a new fixing fixture is replaced accordingly, it will be time-consuming and labor-intensive, and increase the manufacturer's cost of using the fixing fixture. For this reason, we propose a fixing fixture for circular parts of CNC milling machines. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing fixture for circular parts of CNC milling machines, which has the advantages of good applicability and saving time and effort, and solves the problem that the existing fixing fixtures used for CNC milling machines can only clamp and fix parts of the same size during use, but are difficult to clamp and fix circular parts of different sizes, resulting in poor applicability of the fixture, and it is time-consuming and labor-intensive to replace the fixing fixture with a new one, and increases the cost of using the fixing fixture for the manufacturer.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing fixture for circular parts of a CNC milling machine, comprising a base, wherein guide grooves are provided on all four sides of the top of the base, a driving motor is fixedly installed at the middle end of the bottom of the inner cavity of the base, a rotating rod is fixedly connected to the output end of the driving motor, and the end of the rotating rod away from the driving motor is movably connected to the top of the inner cavity of the base through a bearing, the upper end of the outer surface of the rotating rod is fixedly connected to a driving bevel gear, a fixing plate is fixedly connected to all four sides of the top of the inner cavity of the base, a first threaded rod is movably connected to the inner surface of the lower end of the fixing plate through a bearing, and the end of the first threaded rod away from the driving motor is movably connected to the upper end of the inner wall of the base through a bearing, a driven bevel gear meshing with the driving bevel gear is fixedly connected to the end of the first threaded rod close to the driving motor, a moving plate is threadedly connected to the right end of the outer surface of the first threaded rod, a connecting block adapted to the guide groove is fixedly connected to the top of the moving plate, and a clamping positioning rod is fixedly connected to the top of the connecting block.

[0006] Preferably, mounting holes are provided at both left and right ends of the base.

[0007] Preferably, the drive motor is a servo motor.

[0008] Preferably, the clamping and positioning rod is a columnar structure, and anti-slip particles are provided on the outer surface of the clamping and positioning rod.

[0009] Preferably, a movable groove is provided on a side of the clamping and positioning rod away from the rotating rod, and an inner cavity of the movable groove is movably connected to a second threaded rod through a bearing. The second threaded rod passes through the top of the clamping and positioning rod and extends to the top of the clamping and positioning rod.

[0010] Preferably, an adjustment block is threadedly connected to the upper end of the outer surface of the second threaded rod, a movable ring sliding on the outer surface of the clamping positioning rod is fixedly connected to the side of the adjustment block away from the second threaded rod, and a pressure block is fixedly connected to the side of the movable ring close to the rotating rod.

[0011] Preferably, a rotating block is fixedly connected to the top of the second threaded rod, and an outer surface of the rotating block is provided with anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model drives the rotating rod and the driving bevel gear to rotate through the driving motor, and under the cooperation of the meshing driven bevel gear, it can drive the four first threaded rods to rotate at the same time, and when the first threaded rods rotate, they can drive the movable plate to approach the fixed plate, and when the movable plate moves, it can drive the clamping positioning rod to retract inwards through the connecting block with the assistance of the guide slot, so that circular parts of different specifications can be quickly clamped around, and the clamping stability is high, saving time and effort.

[0014] 2. When the utility model drives the second threaded rod to rotate through the rotating block, the adjusting block moves downward on the inner side of the movable groove on the outer surface of the second threaded rod, and the adjusting block can drive the pressing block to press on the top of the circular parts of different specifications through the movable ring, thereby further ensuring the stability of the circular parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from a third viewing angle;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping and positioning rod of the utility model.

[0019] In the figure: 1. base; 2. movable groove; 3. clamping positioning rod; 4. movable ring; 5. guide slide groove; 6. mounting hole; 7. rotating block; 8. connecting block; 9. first threaded rod; 10. moving plate; 11. fixed plate; 12. driven bevel gear; 13. driving motor; 14. rotating rod; 15. driving bevel gear; 16. pressing block; 17. adjusting block; 18. second threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] It should be noted that the base 1, movable groove 2, clamping positioning rod 3, movable ring 4, guide slide groove 5, mounting hole 6, rotating block 7, connecting block 8, first threaded rod 9, movable plate 10, fixed plate 11, driven bevel gear 12, drive motor 13, rotating rod 14, driving bevel gear 15, pressure block 16, adjustment block 17 and second threaded rod 18 of the present application are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods, and they are connected to the power supply circuit using the conventional connection method in the prior art, which will not be described in detail here.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 3 As shown, the utility model provides a technical solution: a fixing fixture for circular parts of a CNC milling machine, comprising a base 1, mounting holes 6 are provided at both left and right ends of the base 1, guide slots 5 are provided around the top of the base 1, a driving motor 13 is fixedly installed at the middle end of the bottom of the inner cavity of the base 1, the driving motor 13 is a servo motor, a rotating rod 14 is fixedly connected to the output end of the driving motor 13, and the end of the rotating rod 14 away from the driving motor 13 is movably connected to the top of the inner cavity of the base 1 through a bearing, a driving bevel gear 15 is fixedly connected to the upper end of the outer surface of the rotating rod 14, and a fixing plate 1 is fixedly connected to the top of the inner cavity of the base 1 around the top of the inner cavity 1, the inner surface of the lower end of the fixed plate 11 is movably connected with a first threaded rod 9 through a bearing, and the end of the first threaded rod 9 away from the driving motor 13 is movably connected with the upper end of the inner wall of the base 1 through a bearing, and the end of the first threaded rod 9 close to the driving motor 13 is fixedly connected with a driven bevel gear 12 meshing with the driving bevel gear 15, and the right end of the outer surface of the first threaded rod 9 is threadedly connected with a movable plate 10, and the top of the movable plate 10 is fixedly connected with a connecting block 8 adapted to the guide slide groove 5, and the top of the connecting block 8 is fixedly connected with a clamping and positioning rod 3, the clamping and positioning rod 3 is a columnar structure, and the outer surface of the clamping and positioning rod 3 is provided with anti-skid particles.

[0026] This technical solution: After the base 1 is installed at the working position on the CNC milling machine through the mounting hole 6, the circular part to be clamped is placed on the top of the base 1, and then the driving motor 13 is turned on by the external controller to drive the rotating rod 14 and the driving bevel gear 15 to rotate, and with the cooperation of the meshing driven bevel gear 12, the four first threaded rods 9 can be driven to rotate at the same time, and when the first threaded rods 9 rotate, they can drive the movable plate 10 to approach the fixed plate 11, and when the movable plate 10 moves, it can drive the clamping positioning rod 3 to retract inwardly through the connecting block 8 with the assistance of the guide slot 5, so that the circular parts of different specifications can be quickly clamped around, and the clamping stability is high, saving time and effort.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, the present invention is as follows Figure 1-Figure 4 As shown, a movable groove 2 is disclosed on the side of the clamping and positioning rod 3 away from the rotating rod 14, and the inner cavity of the movable groove 2 is movably connected to the second threaded rod 18 through a bearing, and the second threaded rod 18 passes through the top of the clamping and positioning rod 3, and the top of the second threaded rod 18 is fixedly connected to the rotating block 7, and the outer surface of the rotating block 7 is provided with anti-slip grooves and extends to the top of the clamping and positioning rod 3, and the upper end of the outer surface of the second threaded rod 18 is threadedly connected to the adjusting block 17, and the side of the adjusting block 17 away from the second threaded rod 18 is fixedly connected to a movable ring 4 that slides on the outer surface of the clamping and positioning rod 3, and the side of the movable ring 4 close to the rotating rod 14 is fixedly connected to a pressing block 16.

[0029] This technical solution: when the second threaded rod 18 is driven to rotate by the rotating block 7, the adjusting block 17 moves downward on the outer surface of the second threaded rod 18 on the inner side of the movable groove 2, and the adjusting block 17 can drive the pressing block 16 to press on the top of the circular parts of different specifications through the movable ring 4, thereby further ensuring the stability of the circular parts.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A fixing fixture for a circular part of a CNC milling machine, comprising a base (1), characterized in that: The top of the base (1) is provided with guide grooves (5) on all sides, a driving motor (13) is fixedly installed at the middle end of the bottom of the inner cavity of the base (1), the output end of the driving motor (13) is fixedly connected to a rotating rod (14), and the end of the rotating rod (14) away from the driving motor (13) is movably connected to the top of the inner cavity of the base (1) through a bearing, the upper end of the outer surface of the rotating rod (14) is fixedly connected to a driving bevel gear (15), and the top of the inner cavity of the base (1) is fixedly connected to a fixing plate (11) on all sides, and the inner surface of the lower end of the fixing plate (11) is movably connected to the top of the inner cavity of the base (1) through a bearing. A first threaded rod (9) is movably connected, and the end of the first threaded rod (9) away from the driving motor (13) is movably connected to the upper end of the inner wall of the base (1) through a bearing, and the end of the first threaded rod (9) close to the driving motor (13) is fixedly connected to a driven bevel gear (12) meshing with the driving bevel gear (15), and the right end of the outer surface of the first threaded rod (9) is threadedly connected to a movable plate (10), and the top of the movable plate (10) is fixedly connected to a connecting block (8) adapted to the guide slide groove (5), and the top of the connecting block (8) is fixedly connected to a clamping positioning rod (3).

2. The fixing fixture for circular parts of a CNC milling machine according to claim 1, characterized in that: The left and right ends of the base (1) are both provided with mounting holes (6).

3. The fixing fixture for circular parts of a CNC milling machine according to claim 1, characterized in that: The driving motor (13) is a servo motor.

4. The fixing fixture for circular parts of a CNC milling machine according to claim 1, characterized in that: The clamping and positioning rod (3) is a columnar structure, and the outer surface of the clamping and positioning rod (3) is provided with anti-skid particles.

5. The fixing fixture for circular parts of a CNC milling machine according to claim 1, characterized in that: A movable groove (2) is provided on a side of the clamping and positioning rod (3) away from the rotating rod (14); the inner cavity of the movable groove (2) is movably connected to a second threaded rod (18) via a bearing; the second threaded rod (18) passes through the top of the clamping and positioning rod (3) and extends to the top of the clamping and positioning rod (3).

6. The fixing fixture for circular parts of a CNC milling machine according to claim 5, characterized in that: The upper end of the outer surface of the second threaded rod (18) is threadedly connected to an adjustment block (17); a side of the adjustment block (17) away from the second threaded rod (18) is fixedly connected to a movable ring (4) that slides on the outer surface of the clamping positioning rod (3); and a side of the movable ring (4) close to the rotating rod (14) is fixedly connected to a pressure block (16).

7. The fixing fixture for circular parts of a CNC milling machine according to claim 5, characterized in that: The top of the second threaded rod (18) is fixedly connected to a rotating block (7), and the outer surface of the rotating block (7) is provided with anti-slip grooves.

Images