Hole drilling machining device for curved-surface mold core

Abstract

The utility model discloses a curved surface mold core drilling processing device, relates to the technical field of mold processing equipment, and provides the following scheme that the curved surface mold core drilling processing device comprises a bracket, and is characterized in that the bracket is fixedly connected with a strong electromagnetic workbench and is in sliding connection with a gantry bracket; the gantry support is in sliding connection with the jacking mechanism, the jacking mechanism is in sliding connection with the drill bit support, the drill bit support is fixedly connected with the drill bit motor, the drill bit motor is fixedly connected with the drill bit, the drill bit motor is fixedly connected with the spring set, and the spring set is fixedly connected with the pressing support. And the pressing bracket is fixedly connected with the pressing sheet group. According to the curved surface mold core drilling device, the effect of pressing and fixing the curved surface mold core is achieved, and meanwhile the drill bit is prevented from being broken in the machining process, so that the drilling precision is not affected.

Description

Technical Field

[0001] The utility model discloses a curved surface mold core drilling processing device, which relates to the field of mold processing equipment. Background Art

[0002] Curved core drilling is a special processing method, which is usually used for hole processing on curved workpieces. In the process of curved core drilling, factors such as the curved surface shape of the workpiece surface and the position and size of the hole need to be considered to ensure the processing accuracy and quality of the hole. Curved core drilling usually requires the use of specially designed tools and fixtures to adapt to the shape of the curved workpiece and ensure the accurate processing position of the hole.

[0003] In previous production and processing, drilling holes in curved mold cores is very difficult and requires the design of new process routes. The process is very complicated. The difficulty in drilling holes in curved mold cores is that the drill bit may be offset due to the influence of the curved surface and the mold core is not firmly fixed, which in turn leads to reduced drilling accuracy, drilling position offset, and even drill bit breakage.

[0004] Therefore, it is necessary to provide a first device that can compress the curved surface mold core to prevent the workpiece from deflecting during drilling and protect the drill bit from being broken. Utility Model Content

[0005] The utility model aims to provide a curved surface mold core drilling processing device, which can achieve the effect of pressing and fixing the curved surface mold core, and at the same time protect the drill bit from being broken during processing, thereby affecting the drilling accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a curved mold core drilling processing device, including a bracket, characterized in that: the bracket is fixedly connected to the strong electromagnetic workbench, the bracket is slidably connected to the gantry bracket, the gantry bracket is slidably connected to the jacking mechanism, the jacking mechanism is slidably connected to the drill bit bracket, the drill bit bracket is fixedly connected to the drill motor, the drill bit motor is fixedly connected to the drill bit, the drill bit motor is fixedly connected to the spring group, the spring group is fixedly connected to the clamping bracket, and the clamping bracket is fixedly connected to the clamping plate group.

[0007] Preferably, a curved mold core drilling processing device is characterized in that: the clamping plate group is fixedly connected to the connecting shaft, and the connecting shaft is rotationally connected to the baffle.

[0008] Preferably, a curved mold core drilling processing device is characterized in that the rotation angle between the baffle and the connecting shaft is limited by a torsion spring.

[0009] Preferably, a curved mold core drilling processing device is characterized in that: a pneumatic shaft is provided in the spring group, the pneumatic shaft is fixedly connected to the drill motor, and the pneumatic shaft is fixedly connected to the clamping bracket.

[0010] Preferably, a curved mold core drilling processing device is characterized in that the lowermost end of the clamping plate group is a curved surface.

[0011] Preferably, a curved mold core drilling processing device is characterized in that a rubber pad is provided at the lowermost end of the clamping plate group.

[0012] Preferably, a curved mold core drilling processing device is characterized in that: the baffle does not contact the clamping plate group.

[0013] Preferably, a curved mold core drilling processing device is characterized in that: the clamping plate group is fixedly connected to the supporting ring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) A curved mold core drilling processing device, characterized in that the bracket is fixedly connected to a strong electromagnetic workbench, the bracket is slidably connected to a gantry bracket, the gantry bracket is slidably connected to a lifting mechanism, and the lifting mechanism is slidably connected to a drill bit bracket, and the sliding connection method is that a motor drives a screw rod to slide accurately, realizing a three-axis linkage connection, with a high degree of freedom, high drilling accuracy, and controllable drilling position.

[0016] (2) A curved mold core drilling processing device, characterized in that the drill motor is fixedly connected to a spring group, the spring group is fixedly connected to a clamping bracket, the clamping bracket is fixedly connected to a clamping plate group, and the clamping mechanism is installed on the drill bracket. When the drill is lowered for drilling, the clamping mechanism starts to work. The lowermost end of the clamping plate group is an arc surface and is provided with a rubber belt pad. The fixed connection between the clamping bracket and the motor can increase the stability of the drill when it is working, enhance the clamping effect, and protect the workpiece from being scratched by the clamping mechanism during clamping and causing damage.

[0017] (3) A curved mold core drilling processing device, characterized in that the clamping plate group is fixedly connected to the connecting shaft, the connecting shaft is rotatably connected to the baffle plate, and the rotation angle between the baffle plate and the connecting shaft is limited by a torsion spring. The baffle plate can prevent waste chips from splashing during processing. The waste will fall along the baffle plate onto the magnetic suction workbench, which is convenient for cleaning the workpiece after processing.

[0018] (4) A curved mold core drilling processing device, characterized in that the clamping plate group is fixedly connected to the supporting ring, which can enhance the stability of the clamping structure and make the clamping mechanism firm and strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a curved mold core drilling processing device;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of a drill head portion of a curved mold core drilling processing device;

[0021] Figure 3 for Figure 2 A partial enlarged schematic diagram of the structure of the middle drill bit;

[0022] Figure 4 for Figure 1 A schematic diagram of a lifting mechanism of a curved mold core drilling processing device.

[0023] Among them, the reference numerals in the figure are:

[0024] 1. Bracket; 2. Strong electromagnetic workbench; 3. Gantry bracket; 4. Lifting mechanism; 5. Drill bracket; 6. Drill motor; 7. Pneumatic shaft; 8. Spring group; 9. Clamp bracket; 10. Clamping plate group; 11. Connecting shaft; 12. Drill; 13. Baffle; 14. Arc surface; 15. Support ring DETAILED DESCRIPTION

[0025] 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.

[0026] As shown in the figure, a curved mold core drilling processing device includes a bracket 1, characterized in that: the bracket 1 is fixedly connected to the strong electromagnetic workbench 2, the bracket 1 is slidably connected to the gantry bracket 3, the gantry bracket 3 is slidably connected to the jacking mechanism 4, the jacking mechanism 4 is slidably connected to the drill bracket 5, the drill bracket 5 is fixedly connected to the drill motor 6, the drill motor 6 is fixedly connected to the drill 12, the drill motor 6 is fixedly connected to the spring group 8, the spring group 8 is fixedly connected to the clamping bracket 9, and the clamping bracket 9 is fixedly connected to the clamping plate group 10.

[0027] Specific implementation cases:

[0028] At the beginning of work, the workpiece to be processed is placed on the strong electromagnetic workbench 2 (the working principle of the strong electromagnetic workbench 2 is the existing technology and will not be elaborated here). The control system (not shown in the figure) controls the motor arranged on the bracket (1) to rotate the threaded tube, thereby realizing the forward and backward movement of the gantry bracket 3. The control system (not shown in the figure) controls the motor arranged on the gantry bracket 3 to rotate the threaded tube, thereby realizing the left and right movement of the jacking mechanism 4. The control system (not shown in the figure) controls the motor arranged on the jacking mechanism 4 to rotate the threaded tube, thereby realizing the up and down movement of the drill bracket 5. The motor controls the threaded rod to cooperate with the slide groove to realize the three-axis joint movement, which is the existing technology. The specific operation method can refer to a CNC three-axis engraving machine with patent number CN212422674U.

[0029] When drilling starts, the rotary motor 6 in the drill bit holder 5 starts, driving the drill bit 12 to rotate, and the lifting mechanism 4 continues to descend, so that the rubber pad on the clamping plate group 10 is close to the mold core curved surface, the spring group 8 and the pneumatic shaft 7 are tightened, and the workpiece is pressed tightly by the elastic force of the spring group 8 and the friction between the rubber pad 14 and the curved surface, while fixing the position of the drill bit 12. When a lifting mechanism (not shown in the figure) is provided in the drill bit holder 5, the drill bit 12 is controlled to descend to perform drilling.

[0030] When punching, the baffle 13 fixed on the clamping plate group 10 is connected to the connecting shaft 11 to control the punching waste chips to fall along the baffle 13 onto the cavity magnetic suction workbench 2 to prevent iron chips from splashing. There is a torsion spring connection between the baffle 13 and the connecting shaft 11 (not marked in the figure) to limit the moving direction of the baffle 13.

[0031] The bottom of the compression plate group 10 is an arc surface 14, which can fit the curved surface well. The supporting ring 15 is fixedly connected to the compression plate group 10 to enhance the stability and firmness of the structure. The overall shape of the entire structure is a perfect circle, so that the compression plate group 10 can better fit the shape of the curved surface and cope with curved surfaces of different radians.

[0032] The above is only a preferred implementation of the present application. The protection scope of the present application is not limited to the above embodiments. All technical solutions under this idea belong to the protection scope of the present application. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present application should also be regarded as the protection scope of the present application.

Claims

1. A curved surface mold core drilling processing device, comprising a bracket (1), characterized in that: The support (1) is fixedly connected to the strong electromagnetic workbench (2), the support (1) is slidably connected to the gantry support (3), the gantry support (3) is slidably connected to the lifting mechanism (4), the lifting mechanism (4) is slidably connected to the drill support (5), the drill support (5) is fixedly connected to the drill motor (6), the drill motor (6) is fixedly connected to the drill (12), the drill motor (6) is fixedly connected to the spring group (8), the spring group (8) is fixedly connected to the clamping support (9), and the clamping support (9) is fixedly connected to the clamping sheet group (10).

2. A curved surface mold core drilling processing device according to claim 1, characterized in that: The compression plate group (10) is fixedly connected to the connecting shaft (11), and the connecting shaft (11) is rotationally connected to the baffle (13).

3. A curved mold core drilling device according to claim 2, characterized in that: The rotation angle between the baffle (13) and the connecting shaft (11) is limited by a torsion spring.

4. The curved surface mold core drilling processing device according to claim 1, characterized in that: A pneumatic shaft (7) is arranged in the spring group (8), the pneumatic shaft (7) is fixedly connected to the drill motor (6), and the pneumatic shaft (7) is fixedly connected to the clamping bracket (9).

5. The curved surface mold core drilling processing device according to claim 1, characterized in that: The lowermost end of the compression sheet group (10) is a curved surface (14).

6. The curved surface mold core drilling processing device according to claim 1, characterized in that: A rubber pad is arranged at the lower end of the compression plate group (10).

7. The curved surface mold core drilling processing device according to claim 2, characterized in that: The baffle (13) does not contact the compression sheet group (10).

8. The curved surface mold core drilling processing device according to claim 1, characterized in that: The compression sheet group (10) is fixedly connected to the supporting ring (15).

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