A precise drilling positioning device for bolt ball
By coordinating the design of the clamping and adjusting components, the problems of inaccurate positioning and insufficient size adaptation in existing bolt ball drilling devices are solved, achieving stable fixing and multi-directional adjustment of the bolt ball, thus improving drilling accuracy and safety.
Patent Information
- Application Number
- CN202522593332.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-08
AI Technical Summary
Existing bolt ball drilling devices lack multi-directional attitude adjustment structures and synchronous clamping drive designs, resulting in insufficient positioning accuracy, size adaptation flexibility, and ease of drilling position adjustment.
The design employs a synergistic approach of clamping and adjusting components, including cylinders, drive motors, connecting rods, clamping plates, racks, and gears. Combined with elastic adaptation and flexible contact structures, it achieves stable fixing of the bolt ball and multi-directional attitude adjustment, ensuring balanced force and dimensional compatibility.
It achieves precise positioning and multi-directional attitude adjustment of the bolt ball, improves the positioning accuracy of drilling and the applicability of the device, reduces surface damage, and ensures the stability and safety of drilling.
Smart Images

Figure CN224939595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining equipment technology, specifically to a precision drilling and positioning device for bolt balls. Background Technology
[0002] In the fields of building steel structure and machinery manufacturing, bolt balls, as core connecting components, need to be assembled with rods through precise drilling. The drilling accuracy directly affects the stability and safety of the overall structure.
[0003] A search revealed existing technology (application number: CN210938373U), which describes "a bolt ball drilling cooling device." This utility model uses an operating lever to move a clamp to fix the bolt ball, starts a drive motor to rotate the drill bit, and simultaneously uses a cylinder to push the drill bit downwards to achieve drilling. During the process, a water pump delivers cooling water to a nozzle to cool the drilling area, cleaning fluid is used for auxiliary cleaning through pipes, and a water tray collects waste liquid which is then filtered through a filter screen.
[0004] However, the device lacks a multi-directional attitude adjustment structure and a synchronous clamping drive design, resulting in insufficient accuracy in positioning the bolt ball, flexibility in size adaptation, and ease of adjusting the drilling position. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precision drilling and positioning device for bolt balls.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a precision drilling and positioning device for bolt balls, comprising: a housing; a clamping assembly including a cylinder, a drive motor, a connecting rod, and a clamping plate, wherein the cylinder is bolted to the housing, the drive motor is fixedly connected to the output shaft of the cylinder, the connecting rod is rotatably connected to the output shaft of the cylinder, and the clamping plate is fixedly connected to the output shaft of the drive motor and the connecting rod respectively; and an adjusting assembly including a rack and a gear, wherein the rack is fixedly connected to the clamping plate, the gear is rotatably connected to the housing, and the gear meshes with the rack.
[0007] As a further description of the above technical solution: The clamping plate is slidably connected to a fixed seat.
[0008] As a further description of the above technical solution: A limiting ball is rotatably connected to the fixed base, and the side wall of the limiting ball contacts the side wall of the bolt ball.
[0009] As a further description of the above technical solution: The clamping plate is equipped with a spring inside, and the two ends of the spring are fixedly connected to the fixing base and the clamping plate, respectively.
[0010] As a further description of the above technical solution: The housing also contains a second drive motor, which is located at the bottom of the housing and below the bolt ball. The cylinder is located on the side wall of the housing and on both sides of the bolt ball.
[0011] As a further description of the above technical solution: A support base is fixedly connected to the output shaft of the second drive motor.
[0012] As a further description of the above technical solution: A soft pad is attached to the support base, and the top of the soft pad contacts the bolt ball.
[0013] This utility model has the following beneficial effects: Firstly, the synergistic action of the clamping and support structures enables stable fixation and multi-directional attitude adjustment of the bolt ball. Synchronous drive of the clamping components ensures balanced force on the bolt ball, preventing displacement during clamping. Combined with the rotation drive structure, the spatial angle of the bolt ball can be flexibly adjusted to meet drilling requirements at different locations, providing a fundamental guarantee for precise drilling.
[0014] Secondly, the device's compatibility with bolt balls of different sizes is improved through its elastic adaptation and flexible contact design, while reducing surface damage during contact. The elastic component can automatically adjust the clamping force according to the size of the bolt ball, and the flexible contact component increases the contact area and buffers pressure, ensuring clamping stability while avoiding surface scratches caused by hard contact, thus balancing positioning accuracy and product protection. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model; Figure 3 This is a schematic diagram of the internal structure of the clamping plate of this utility model; Figure 4 This is a partial structural schematic diagram of the adjustment component of this utility model.
[0016] Legend: 1. Outer shell; 2. Clamping assembly; 21. Cylinder; 22. Drive motor one; 23. Connecting rod; 24. Clamping plate; 25. Fixing base; 26. Limit ball; 27. Spring; 3. Adjustment assembly; 31. Drive motor two; 32. Support base; 33. Soft pad; 34. Rack; 35. Gear. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0020] Example 1: As Figures 1 to 4 As shown, this embodiment provides a precision drilling and positioning device for bolt balls, comprising: a housing 1; a clamping assembly 2, including a cylinder 21, a drive motor 22, a connecting rod 23, and a clamping plate 24, wherein the cylinder 21 is bolted to the housing 1, the drive motor 22 is fixedly connected to the output shaft of the cylinder 21, the connecting rod 23 is rotatably connected to the output shaft of the cylinder 21, and the clamping plate 24 is fixedly connected to the output shaft of the drive motor 22 and the connecting rod 23 respectively; and an adjusting assembly 3, including a rack 34 and a gear 35, wherein the rack 34 is fixedly connected to the clamping plate 24, the gear 35 is rotatably connected to the housing 1, and the gear 35 meshes with the rack 34.
[0021] In addition, an anti-slip pad is attached to the side of the clamping plate 24 near the bolt ball.
[0022] In this embodiment, the outer shell 1, the clamping assembly 2, and the adjusting assembly 3 constitute a bolt ball precision drilling and positioning device according to this application.
[0023] Understandable Figure 1 The diagram only schematically illustrates some of the components of the bolt ball drilling positioning device; the actual shape, size, position, and construction of these components are not subject to change. Figure 1 Due to limitations, the bolt ball drill positioning device can also include, compared to... Figure 1 More or fewer parts.
[0024] Example 2: Specifically, a fixed seat 25 is slidably connected inside the clamping plate 24.
[0025] Specifically, a limiting ball 26 is rotatably connected to the fixed base 25, and the side wall of the limiting ball 26 contacts the side wall of the bolt ball.
[0026] Specifically, a spring 27 is provided inside the clamping plate 24, and the two ends of the spring 27 are fixedly connected to the fixed base 25 and the clamping plate 24 respectively.
[0027] In this embodiment, the fixing seat 25 can slide freely within the internal groove of the clamping plate 24 to accommodate bolt balls of different sizes, increasing the adaptability of the clamping assembly to bolt balls of different diameters and avoiding instability caused by differences in bolt ball size. After the bolt ball is placed, the limiting ball 26 contacts the side wall of the bolt ball. When the bolt ball rotates, it drives the limiting ball 26 to rotate synchronously, reducing friction between the bolt ball and the fixing seat 25, reducing the resistance when the bolt ball rotates, protecting the surface of the bolt ball from scratches, and assisting in positioning the bolt ball. The spring 27 is elastic. When the size of the bolt ball changes, the fixing seat 25 slides to compress or stretch the spring 27. The spring 27 generates a reaction force to push the fixing seat 25, so that the limiting ball 26 is always in close contact with the side wall of the bolt ball, providing elastic support for the fixing seat 25, ensuring that the limiting ball 26 and the bolt ball are in continuous close contact, and enhancing clamping stability.
[0028] Example 3: Specifically, a second drive motor 31 is also provided inside the outer casing 1. The second drive motor 31 is located below the outer casing 1 and below the bolt ball. The cylinder 21 is located on the side wall of the outer casing 1 and on both sides of the bolt ball.
[0029] Specifically, a support base 32 is fixedly connected to the output shaft of the drive motor 2 31.
[0030] Specifically, a soft pad 33 is attached to the support base 32, and the soft pad 33 contacts the bolt ball above.
[0031] In this embodiment, the second drive motor 31 is located below the bolt ball and can provide rotational power in the vertical direction; the cylinder 21 is on both sides of the bolt ball and provides clamping power in the horizontal direction. The clear distribution of the positions of each component ensures that the cylinder clamping and the motor drive rotation do not interfere with each other, providing a power source for multi-directional adjustment of the bolt ball. When the output shaft of the second drive motor 31 rotates, it drives the support base 32 to rotate synchronously. The support base 32 bears the weight of the bolt ball, realizing bottom support for the bolt ball, and can also drive the bolt ball to rotate in the vertical direction, providing vertical rotational power for adjusting the drilling position. The soft pad 33 is elastic. When the bolt ball is placed on it, the soft pad 33 deforms and fits the bottom of the bolt ball, increasing the contact area and reducing hard contact between the bolt ball and the support base 32, protecting the bottom surface of the bolt ball from being scratched, increasing the friction between the bolt ball and the support base 32, preventing the bolt ball from sliding on the support base 32, and improving the stability during rotation.
[0032] In actual use, the user first places the bolt ball on the soft pad 33, then starts the cylinder 21. The cylinder 21 drives the clamping plate 24 to clamp the bolt ball and make a hole in it. If the drilling position needs to be adjusted, the drive motor 22 can be started. The drive motor 22 can drive the bolt ball to rotate, and then the clamping plate 24 will be disengaged from the bolt ball by a certain distance, so that the bolt ball falls on the support seat 32. Then the drive motor 31 is started, and the drive motor 31 drives the bolt ball to rotate in another direction to adjust the drilling position of the bolt ball. The rack 34 and gear 35 can ensure that the two cylinders 21 push the two clamping plates 24 synchronously to clamp the bolt ball.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A precision drilling and positioning device for bolt balls, characterized in that: include: Outer shell (1); The clamping assembly (2) includes a cylinder (21), a drive motor (22), a connecting rod (23), and a clamping plate (24). The cylinder (21) is bolted to the outer shell (1), the drive motor (22) is fixedly connected to the output shaft of the cylinder (21), the connecting rod (23) is rotatably connected to the output shaft of the cylinder (21), and the clamping plate (24) is fixedly connected to the output shaft of the drive motor (22) and the connecting rod (23) respectively. The adjustment assembly (3) includes a rack (34) and a gear (35). The rack (34) is fixedly connected to the clamping plate (24), and the gear (35) is rotatably connected to the housing (1). The gear (35) meshes with the rack (34).
2. The bolt ball precision drilling and positioning device according to claim 1, characterized in that: The clamping plate (24) has a fixed seat (25) slidably connected inside.
3. The bolt ball precision drilling and positioning device according to claim 2, characterized in that: A limiting ball (26) is rotatably connected to the fixed seat (25), and the side wall of the limiting ball (26) contacts the side wall of the bolt ball.
4. The bolt ball precision drilling and positioning device according to claim 1, characterized in that: The clamping plate (24) is provided with a spring (27) inside, and the two ends of the spring (27) are fixedly connected to the fixing seat (25) and the clamping plate (24) respectively.
5. The bolt ball precision drilling and positioning device according to claim 1, characterized in that: The outer casing (1) is also equipped with a second drive motor (31), which is located below the outer casing (1) and below the bolt ball. The cylinder (21) is located on the side wall of the outer casing (1) and on both sides of the bolt ball.
6. The bolt ball precision drilling and positioning device according to claim 5, characterized in that: A support base (32) is fixedly connected to the output shaft of the second drive motor (31).
7. The bolt ball precision drilling and positioning device according to claim 6, characterized in that: A soft pad (33) is attached to the support base (32), and the soft pad (33) is in contact with the bolt ball above.
Citation Information
Patent Citations
Bolt ball drilling cooling device
CN210938373U
