Automatic centering and drilling device

The design of the automatic positioning and center hole drilling device solves the problem of cumbersome manual support in the existing technology, realizes rapid material clamping and drilling, and improves processing efficiency and accuracy.

CN224294740UActive Publication Date: 2026-05-29MIANYANG QIANHUI MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MIANYANG QIANHUI MASCH EQUIP CO LTD
Filing Date
2025-07-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing center hole drilling devices require a lot of manual support and fixation during drilling operations, making them cumbersome to use and labor-intensive.

Method used

An automatic positioning and center hole drilling device was designed. Through the combination structure of support components, clamping components and hole punch, the device can quickly clamp materials and adjust their height. Combined with the rotation locking function of the threaded rod, the operation process is simplified.

Benefits of technology

It enables rapid material clamping and drilling, reduces manual operation, and improves processing efficiency and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to center drilling device technical field especially for automatic positioning center drilling device, including punch assembly, the inside of punch assembly includes fixed base, the upper end portion sliding mounting of fixed base has two support components, the inside of each support component all slidingly installs two clamping components, the side end portion sliding mounting of fixed base has the support, the upper end portion fixed mounting of support has puncher, the inside of each support component all includes the connecting bottom plate. The device can place material on the placement table cooperation fixed ring, L type support pole, connecting shaft etc. portion transmission and further push the sliding rod in the limiting frame to slide to the cooperation of placement table and sliding rod carries out the quick clamping to the material, subsequently rotates the rotating handle and adjusts the puncher use height, reaches the device when using can quick clamping to the material at the same time conveniently quick punch operation to the material, improves the device use effect.
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Description

Technical Field

[0001] This utility model relates to the technical field of center hole drilling devices, specifically to an automatic positioning center hole drilling device. Background Technology

[0002] A center hole drilling device is used to machine a center hole on the end face of a workpiece, commonly found in the machining of shaft parts. It uses a power-driven drill bit, combined with a positioning mechanism, to ensure the precise position of the center hole. Types include benchtop and CNC models. It improves the coaxiality of subsequent machining processes and is widely used in the machinery manufacturing industry, laying the foundation for turning, grinding, and other processes. It is a crucial piece of equipment for ensuring the precision of parts in machining.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] In actual operation, most existing center hole drilling devices require manual control of the material during drilling, followed by adjustment of the drilling machine to drill the material. This method requires a lot of labor to support the material or to use additional fixing tools, making it quite cumbersome to use. Utility Model Content

[0005] The purpose of this invention is to provide an automatic positioning and center hole drilling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning and center hole drilling device, comprising a drilling assembly, wherein the drilling assembly includes a fixed base inside, two support assemblies are slidably mounted on the upper end of the fixed base, two clamping assemblies are slidably mounted inside each support assembly, a bracket is slidably mounted on the side end of the fixed base, a drill is fixedly mounted on the upper end of the bracket, each support assembly includes a connecting base plate inside, limit frames are fixedly mounted on the left and right sides of each connecting base plate, a placement platform is slidably mounted on the upper end of each connecting base plate, each clamping assembly includes an L-shaped support rod inside, each L-shaped support rod is rotatably mounted on both sides of the connecting base plate, a sliding rod is slidably mounted inside each limit frame, and a second buffer pad is fixedly mounted on the side end of each sliding rod.

[0007] The beneficial effects of this utility model are as follows: by placing the material on the placement platform and cooperating with the fixed ring, L-shaped support rod, connecting shaft and other parts to drive the sliding rod to slide within the limit frame, the material is quickly clamped with the cooperation of the placement platform and the sliding rod. Then, the handle is rotated to adjust the height of the punch, so that the device can quickly clamp the material and facilitate the rapid punching operation when in use, thereby improving the device's performance.

[0008] To achieve rotation or fixation of the threaded rod:

[0009] The configuration is further defined as follows: two mounting plates are fixedly installed on the upper end of the fixed base, a limiting plate is fixedly installed on the side end of the fixed base, a threaded rotating rod is rotatably installed inside the limiting plate, a rotating handle is rotatably installed on the lower end of the threaded rotating rod, and the threaded rotating rod forms a rotating structure through the rotating handle and the limiting plate.

[0010] By adopting the above technical solution, the threaded rod can be rotated by rotating the handle, and the internal pivot of the handle can be pressed to lock the threaded rod, thereby limiting the position of the threaded rod.

[0011] To enable height adjustment for using the punch:

[0012] The further configuration is as follows: a collar is sleeved on the outer surface of the threaded rotating rod, a bracket is fixedly installed on the side end of the collar, a punch is fixedly installed on the upper end of the bracket, a drill head is splinedly connected to the side output shaft of the punch, and the bracket forms a sliding structure through the collar and the threaded rotating rod.

[0013] By adopting the above technical solution, the bracket can be adjusted up and down by fitting a collar on the outer surface of the threaded rotating rod, thereby facilitating the adjustment of the drilling height.

[0014] To enable quick installation or convenient subsequent disassembly of the support components:

[0015] The configuration is further defined as follows: bolts are slidably installed on both sides of each connecting base plate; each connecting base plate is installed on the fixed base by bolts in cooperation with the mounting plate; support plates are fixedly installed on both sides of each connecting base plate; limit frames are fixedly installed on the upper end of each support plate; fixing rings are fixedly installed on both sides of each placement platform; springs are sleeved on the outer surface of each placement platform; and a first buffer pad is fixedly installed on the upper end of each placement platform.

[0016] By adopting the above technical solution, it is possible to quickly install or disassemble using bolts, thereby enabling the quick installation or removal of components such as the connecting base plate in conjunction with the mounting plate.

[0017] To enable the sliding rod to slide when the placement platform is pressed down:

[0018] The configuration is further defined as follows: an L-shaped support rod is rotatably installed inside each support plate; a limiting post is sleeved inside each L-shaped support rod; the side end of each limiting post is connected to the support plate; the side end of each L-shaped support rod is connected to a fixing ring; a connecting shaft is rotatably installed at the upper end of each L-shaped support rod; the upper end of each connecting shaft is slidably installed inside a sliding rod; limiting blocks are fixedly installed on both the left and right sides of each sliding rod; and each sliding rod is limited and installed inside a limiting frame by the limiting blocks.

[0019] By adopting the above technical solution, the sliding rod can be pushed to slide by using the L-shaped support rod in conjunction with the connecting shaft transmission.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main view of this utility model;

[0022] Figure 2 This is a schematic diagram of the punching component of this utility model;

[0023] Figure 3 This is a schematic diagram of the support component of this utility model;

[0024] Figure 4 This is a schematic diagram of the clamping component of this utility model.

[0025] In the diagram: 1. Drilling assembly; 11. Fixed base; 12. Mounting plate; 13. Limiting plate; 14. Threaded rotating rod; 15. Rotating handle; 16. Collar; 17. Bracket; 18. Drilling tool; 19. Drill head; 2. Support assembly; 21. Connecting base plate; 22. Bolt; 23. Support plate; 24. Limiting frame; 25. Placement platform; 26. First buffer pad; 27. Spring; 28. Fixing ring; 3. Clamping assembly; 31. L-shaped support rod; 32. Limiting post; 33. Connecting shaft; 34. Sliding rod; 35. Limiting block; 36. Second buffer pad. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0027] Please see Figures 1 to 4An automatic positioning and center hole drilling device includes a drilling component 1. The drilling component 1 includes a fixed base 11 inside. Two support components 2 are slidably installed on the upper end of the fixed base 11. Two clamping components 3 are slidably installed inside each support component 2. A bracket 17 is slidably installed on the side end of the fixed base 11. A hole punch 18 is fixedly installed on the upper end of the bracket 17. Each support component 2 includes a connecting base plate 21 inside. Limit frames 24 are fixedly installed on the left and right sides of each connecting base plate 21. A placement platform 25 is slidably installed on the upper end of each connecting base plate 21. Each clamping component 3 includes an L-shaped support rod 31 inside. Each L-shaped support rod 31 is rotatably installed on both sides of the connecting base plate 21. A sliding rod 34 is slidably installed inside each limit frame 24. A second buffer pad 36 is fixedly installed on the side end of each sliding rod 34.

[0028] In this embodiment, as Figure 1 and Figure 2 As shown, two mounting plates 12 are fixedly installed on the upper end of the fixed base 11, and a limiting plate 13 is fixedly installed on the side end of the fixed base 11. A threaded rotating rod 14 is rotatably installed inside the limiting plate 13, and a rotating handle 15 is rotatably installed on the lower end of the threaded rotating rod 14. The threaded rotating rod 14 forms a rotating structure through the rotating handle 15 and the limiting plate 13.

[0029] In this embodiment, as Figure 1 and Figure 2 As shown, a collar 16 is fitted on the outer surface of the threaded rotating rod 14. A bracket 17 is fixedly installed on the side end of the collar 16. A punch 18 is fixedly installed on the upper end of the bracket 17. A drill bit 19 is splinedly connected to the side output shaft of the punch 18. The bracket 17 forms a sliding structure through the collar 16 and the threaded rotating rod 14.

[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, bolts 22 are slidably installed on both the left and right sides of each connecting base plate 21. Each connecting base plate 21 is installed on the fixed base 11 above it by cooperating with the mounting plate 12 through bolts 22. Support plates 23 are fixedly installed on both the left and right sides of each connecting base plate 21. Limit frames 24 are fixedly installed on the upper end of each support plate 23. Fixing rings 28 are fixedly installed on both the left and right sides of each placement platform 25. Springs 27 are sleeved on the outer surface of each placement platform 25. A first buffer pad 26 is fixedly installed on the upper end of each placement platform 25.

[0031] In this embodiment, as Figure 1 , Figure 3 and Figure 4As shown, each support plate 23 has an L-shaped support rod 31 rotatably installed inside, each L-shaped support rod 31 has a limiting post 32 sleeved inside, each limiting post 32 has a side end connected to the support plate 23, each L-shaped support rod 31 has a side end connected to the fixing ring 28, each L-shaped support rod 31 has a connecting shaft 33 rotatably installed at its upper end, each connecting shaft 33 has its upper end slidably installed inside the sliding rod 34, each sliding rod 34 has a limiting block 35 fixedly installed on its left and right sides, and each sliding rod 34 is limited and installed inside the limiting frame 24 by the limiting block 35.

[0032] The automatic positioning and center hole drilling device operates as follows:

[0033] First, the user places the material on top of the first buffer pad 26. The material then presses down, pushing the placement platform 25 downwards, simultaneously causing the fixing ring 28 and other parts to move downwards. As the fixing ring 28 moves downwards, it causes the L-shaped support rod 31 to rotate along the limiting post 32. Simultaneously, the rotating part, in conjunction with the connecting shaft 33, slides within the groove of the sliding rod 34. This allows the L-shaped support rod 31 to push the sliding rod 34 to slide. The sliding rod 34, limited by the limiting block 35 and the limiting frame 24, slides parallel to the side. When both sliding rods 34 are in position... When sliding, it can quickly clamp the material with the second buffer pad 36 and the first buffer pad 26 on the side. After clamping, the user rotates the handle 15. Rotating the handle 15 drives the threaded rod 14 to rotate, which in turn adjusts the height of the bracket 17 with the collar 16. After adjusting the top punch 18 of the bracket 17 to the specified height, the user presses the limit button below the handle 15 to limit the threaded rod 14, and then starts the punch 18. Then, the material is pushed from the other side to contact the material with the drill head 19 on the side of the punch 18 to complete the punching operation.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An automatic positioning and center hole drilling device, comprising a drilling assembly (1), characterized in that: The punching assembly (1) includes a fixed base (11) inside. Two support assemblies (2) are slidably installed on the upper end of the fixed base (11). Two clamping assemblies (3) are slidably installed inside each support assembly (2). A bracket (17) is slidably installed on the side end of the fixed base (11), and a punch (18) is fixedly installed on the upper end of the bracket (17). Each of the support components (2) includes a connecting base plate (21) inside. Each connecting base plate (21) has a limit frame (24) fixedly installed on its left and right sides. Each connecting base plate (21) has a placement platform (25) slidably installed on its upper end. Each clamping assembly (3) includes an L-shaped support rod (31) inside, each L-shaped support rod (31) is rotatably mounted on both sides of the connecting base plate (21), each limiting frame (24) has a sliding rod (34) inside, and a second buffer pad (36) is fixedly mounted on the side end of each sliding rod (34).

2. The automatic positioning and centering hole drilling device as described in claim 1, characterized in that: Two mounting plates (12) are fixedly installed at the upper end of the fixed base (11), and a limiting plate (13) is fixedly installed at the side end of the fixed base (11). A threaded rotating rod (14) is rotatably installed inside the limiting plate (13), and a rotating handle (15) is rotatably installed at the lower end of the threaded rotating rod (14). The threaded rotating rod (14) forms a rotating structure through the rotating handle (15) and the limiting plate (13).

3. The automatic positioning and centering hole drilling device as described in claim 2, characterized in that: A collar (16) is fitted on the outer surface of the threaded rotating rod (14). A bracket (17) is fixedly installed on the side end of the collar (16). A punch (18) is fixedly installed on the upper end of the bracket (17). A drill bit (19) is splined to the output shaft of the punch (18). The bracket (17) forms a sliding structure through the collar (16) and the threaded rotating rod (14).

4. The automatic positioning and centering hole drilling device as described in claim 3, characterized in that: Bolts (22) are slidably installed on both the left and right sides of each connecting base plate (21). Each connecting base plate (21) is installed on the fixed base (11) above it by bolts (22) and mounting plate (12). Support plates (23) are fixedly installed on both the left and right sides of each connecting base plate (21). Limit frames (24) are fixedly installed on the upper end of each support plate (23). Fixing rings (28) are fixedly installed on both the left and right sides of each placement platform (25). Springs (27) are sleeved on the outer surface of each placement platform (25). A first buffer pad (26) is fixedly installed on the upper end of each placement platform (25).

5. The automatic positioning and centering hole drilling device as described in claim 4, characterized in that: Each of the support plates (23) is rotatably mounted with an L-shaped support rod (31), each of the L-shaped support rods (31) is fitted with a limiting post (32), the side end of each limiting post (32) is connected to the support plate (23), the side end of each L-shaped support rod (31) is connected to a fixing ring (28), the upper end of each L-shaped support rod (31) is rotatably mounted with a connecting shaft (33), the upper end of each connecting shaft (33) is slidably mounted inside a sliding rod (34), the left and right sides of each sliding rod (34) are fixedly mounted with limiting blocks (35), and each sliding rod (34) is limited and mounted inside a limiting frame (24) by the limiting blocks (35).