Square-column-shaped part clamping mechanism for numerical control planer type milling machine

Abstract

The utility model provides a square-column-shaped part clamping mechanism for a numerical control planer type milling machine, the numerical control planer type milling machine comprises a working table, a plurality of T-shaped grooves are formed in the working table, a square-column-shaped part is horizontally placed, the square-column-shaped part clamping mechanism for the numerical control planer type milling machine comprises two clamping tables, and the clamping tables are arranged on the working table. Each clamping table comprises a base, a lifting oil cylinder, a table top and a clamping mechanism arranged on the table top. One end of the table top is hinged to the base through a hinge seat, and the two ends of the lifting oil cylinder are hinged to the base and the table top respectively so that the table top can be driven to rotate around the hinge seat. The clamping mechanism is used for clamping the square-column-shaped part, and the clamping direction is parallel to the rotating face of the table top. The square-column-shaped part clamping mechanism for the numerical control planer type milling machine has the advantages that a square-column-shaped part can be inclined by a certain angle, and therefore the surface of the square-column-shaped part can be obliquely machined.

Description

Technical Field

[0001] The utility model relates to the technical field of processing machine tools, and specifically, to a clamping mechanism for square columnar parts of a numerically controlled gantry milling machine. Background Art

[0002] A numerically controlled gantry milling machine is an advanced metal processing machine tool. When in use, an operator inputs a machining program into the numerical control system in advance, and the system will accurately control parameters such as the moving speed, position, and cutting depth of the workbench, spindle, and tool according to the instructions in the program, so as to achieve high-precision machining of the workpiece. The numerically controlled gantry milling machine mainly consists of components such as a workbench, a gantry, and a milling head. The workbench is used to carry the workpiece, and the gantry moves with the milling head to find the coordinates for machining the workpiece.

[0003] Among them, the sizes of the workpieces processed by the numerically controlled gantry milling machine are relatively large, and the clamping stability of the workpiece has a great influence on the machining accuracy. The existing clamping method is to open multiple T-shaped grooves on the workbench, and then install movable clamps on the T-shaped grooves to clamp the workpiece through the clamps. For square columnar parts, the existing clamping method is to first support the parts, and then use jacks to clamp them from both sides of the parts. In this clamping method, the milling head can only machine perpendicular to the surface of the square columnar part. However, when machining some square columnar parts locally, the milling head needs to have a certain inclination angle with the surface, and the traditional clamps are powerless.

[0004] In order to solve the above existing problems, people have been seeking an ideal technical solution. Summary of the Invention

[0005] The purpose of the utility model is to aim at the deficiencies of the prior art, and thus provide a clamping mechanism for square columnar parts of a numerically controlled gantry milling machine that can tilt the square columnar parts by a certain angle, so as to be able to machine the surface of the parts obliquely.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a clamping mechanism for square columnar parts of a numerically controlled gantry milling machine, the numerically controlled gantry milling machine includes a workbench, multiple T-shaped grooves are opened on the workbench, the square columnar parts are placed horizontally, the clamping mechanism for square columnar parts of the numerically controlled gantry milling machine includes two clamping tables, each clamping table includes a base, a lifting oil cylinder, a table top, and a clamping mechanism arranged on the table top; one end of the table top is hinged to the base through a hinge seat, and both ends of the lifting oil cylinder are respectively hinged to the base and the table top, so as to drive the table top to rotate around the hinge seat; the clamping mechanism is used to clamp the square columnar parts, and the clamping direction is parallel to the rotation plane of the table top.

[0007] Based on the above, the clamping mechanism includes a backing plate, a side pressing oil cylinder, and a pressing top oil cylinder. The backing plate is arranged perpendicular to the tabletop. The side pressing oil cylinder is perpendicular to the backing plate. A side pressing plate is provided at the driving end of the side pressing oil cylinder facing the backing plate. A bent portion is provided on one side of the top of the backing plate facing the side pressing oil cylinder. The pressing top oil cylinder is installed on the bent portion and is perpendicular to the tabletop. A pressing top plate is connected to the bottom end of the pressing top oil cylinder.

[0008] Based on the above, the base includes a bottom plate and a carrying box provided on the bottom plate. T-shaped bolts are provided on the bottom plate and are matched with the T-shaped grooves for fixing on the workbench. The top of the carrying box is provided with an open box mouth. The lifting oil cylinder is arranged inside the carrying box, and the tabletop is pressed on the box mouth.

[0009] Based on the above, a partition is further provided inside the carrying box. The top surface of the partition is flush with the top surface of the box mouth. The partition is close to the backing plate side, and the lifting oil cylinder is close to the side pressing oil cylinder side, so that the partition can avoid the telescopic path of the lifting oil cylinder.

[0010] Based on the above, rubber pads are laid on both the top surface of the box mouth and the top surface of the partition.

[0011] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0012] (1) Through the clamping mechanisms provided on the two clamping tables, two points on the square columnar part can be selected to clamp it. By the telescopic movement of the lifting oil cylinder, the tabletop can be driven to tilt at a certain angle, and then an inclination angle is formed between the milling head and the surface to be machined, realizing the inclined machining of the part surface and meeting the machining requirements of special working conditions.

[0013] (2) The tabletop, the backing plate, the side pressing plate, and the pressing top plate can clamp the square columnar part from four directions, ensuring stable clamping when the part is tilted. The settings of the side pressing oil cylinder and the pressing top oil cylinder can adjust the positions of the side pressing plate and the pressing top plate, being applicable to clamping square columnar parts of different sizes.

[0014] (3) The setting of the carrying box ensures the installation space of the lifting oil cylinder, and at the same time reduces the weight of the clamping table. The T-shaped bolts provided on the bottom plate are convenient for fixing on the workbench. The setting of the partition strengthens the strength of the carrying box. The setting of the rubber pad avoids the rigid collision between the tabletop and the carrying box during the lifting process, and can extend the service life. Description of the Drawings

[0015] Figure 1It is a schematic side view of the clamping mechanism for square-column parts used in a numerically controlled gantry milling machine in the present utility model.

[0016] Figure 2 It is a schematic view of the structure of the clamping table in the present utility model.

[0017] In the figure: 1. Workbench; 2. T-slot; 3. Square-column part; 4. Base; 5. Lifting oil cylinder; 6. Tabletop; 7. Hinge seat; 8. Back plate; 9. Side pressing oil cylinder; 10. Pressing top oil cylinder; 11. Side pressing plate; 12. Bending part; 13. Pressing top plate; 41. Bottom plate; 42. Bearing box; 43. T-bolt; 44. Partition; 45. Rubber pad. Specific embodiments

[0018] Next, through specific embodiments, the technical solutions of the present utility model will be further described in detail.

[0019] As Figure 1 and Figure 2 shown, a clamping mechanism for square-column parts used in a numerically controlled gantry milling machine, wherein the numerically controlled gantry milling machine uses a device purchased on the market, including a workbench 1, multiple T-slots 2 are opened on the workbench 1, and the square-column part 3 is placed horizontally.

[0020] The clamping mechanism for square-column parts used in the numerically controlled gantry milling machine includes two clamping tables. Each clamping table includes a base 4, a lifting oil cylinder 5, a tabletop 6, and a clamping mechanism arranged on the tabletop 6; one end of the tabletop 6 is hinged to the base 4 through a hinge seat 7, and both ends of the lifting oil cylinder 5 are respectively hinged to the base 4 and the tabletop 6, so as to drive the tabletop 6 to rotate around the hinge seat 7, enabling it to tilt at a certain inclination angle.

[0021] The clamping mechanism specifically includes a back plate 8, a side pressing oil cylinder 9, and a pressing top oil cylinder 10. The back plate 8 is arranged perpendicular to the tabletop 6, the side pressing oil cylinder 9 is perpendicular to the back plate 8, a side pressing plate 11 is arranged on the driving end of the side pressing oil cylinder 9 facing the back plate 8, a bending part 12 is arranged on one side of the top of the back plate 8 facing the side pressing oil cylinder 9, the pressing top oil cylinder 10 is installed on the bending part 12 and is perpendicular to the tabletop 6, and a pressing top plate 13 is connected to the bottom end of the pressing top oil cylinder 10.

[0022] During actual use, the two clamping tables can be used to select two non-interfering machining points on the square-columnar part 3 for clamping. The side pressing oil cylinder 9 and the top pressing oil cylinder 10 can adjust the positions of the side pressing plate 11 and the top pressing plate 13, making it applicable to square-columnar parts 3 of different sizes. The tabletop 6, the backing plate 8, the side pressing plate 11, and the top pressing plate 13 clamp the square-columnar part 3 from four directions, and the clamping direction is parallel to the rotating surface of the tabletop 6. The lifting oil cylinder 5 can drive the tabletop 6 to tilt at a certain angle together with the square-columnar part 3 through telescoping, so as to form an inclination angle between the milling head and the surface to be machined, realizing the inclined machining of the part surface.

[0023] The base 4 specifically includes a bottom plate 41 and a bearing box 42 arranged on the bottom plate 41. T-shaped bolts 43 that cooperate with the T-shaped grooves 2 are arranged on the bottom plate 41 for fixing on the workbench 1. The top of the bearing box 42 is provided with an open box mouth. The lifting oil cylinder 5 is arranged inside the bearing box 42, and the tabletop 6 is pressed on the box mouth. With this design, there is sufficient space inside the bearing box 42, which is convenient for the installation of the lifting oil cylinder 5 and can also reduce the weight of the base 4.

[0024] To improve the strength of the bearing box 42, a partition plate 44 is also arranged inside the bearing box 42. The top surface of the partition plate 44 is flush with the top surface of the box mouth. The partition plate 44 is close to the backing plate 8 side, and the lifting oil cylinder 5 is close to the side pressing oil cylinder 9 side, so that the partition plate 44 can avoid the telescoping path of the lifting oil cylinder 5.

[0025] To avoid rigid collision between the tabletop 6 and the box mouth during lifting, rubber pads 45 are laid on the top surface of the box mouth and the top surface of the partition plate 44.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features. Without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A clamping mechanism for square-column parts used in a numerically controlled gantry milling machine. The numerically controlled gantry milling machine includes a workbench, and multiple T-shaped grooves are provided on the workbench. The square-column parts are placed horizontally, and it is characterized in that: The clamping mechanism for square-column parts of the numerically controlled gantry milling machine comprises two clamping tables. Each clamping table includes a base, a lifting oil cylinder, a tabletop, and a clamping mechanism arranged on the tabletop. One end of the tabletop is hinged to the base through a hinge seat, and two ends of the lifting oil cylinder are respectively hinged to the base and the tabletop so as to drive the tabletop to rotate around the hinge seat. The clamping mechanism is used for clamping the square-column parts, and the clamping direction is parallel to the rotation surface of the tabletop.

2. The clamping mechanism for square-column parts of a numerically controlled gantry milling machine according to claim 1, wherein: The clamping mechanism includes a backing plate, a side pressing oil cylinder, and a pressing top oil cylinder. The backing plate is arranged perpendicular to the tabletop. The side pressing oil cylinder is perpendicular to the backing plate. A side pressing plate is arranged on the driving end of the side pressing oil cylinder facing the backing plate. A bending part is arranged on one side of the top of the backing plate facing the side pressing oil cylinder. The pressing top oil cylinder is installed on the bending part and perpendicular to the tabletop, and a pressing top plate is connected to the bottom end of the pressing top oil cylinder.

3. The clamping mechanism for square-column parts used in a numerically controlled gantry milling machine according to claim 2, characterized in that: The base includes a bottom plate and a bearing box arranged on the bottom plate. T-shaped bolts matched with the T-shaped grooves are arranged on the bottom plate so as to be fixed on the workbench. The top of the bearing box is provided with an open box opening. The lifting oil cylinder is arranged in the bearing box, and the tabletop is pressed on the box opening.

4. The clamping mechanism for square-column parts of a numerically controlled gantry milling machine according to claim 3, characterized in that: A partition plate is further arranged in the bearing box. The top surface of the partition plate is flush with the top surface of the box opening. The partition plate is close to the backing plate side, and the lifting oil cylinder is close to the side pressing oil cylinder side so that the partition plate can avoid the telescopic path of the lifting oil cylinder.

5. The clamping mechanism for square-column parts used in a numerically controlled gantry milling machine according to claim 4, wherein: Rubber pads are laid on the top surfaces of the box opening and the partition plate.

Images