Mechanical part drilling and clamping device
By setting an inverted L-shaped positioning cavity on the positioning seat and using the studs and pressure plates of the clamping assembly to achieve reliable clamping of the parts, the problem of clamping and positioning of L-shaped mechanical parts is solved, and the processing efficiency and precision are improved.
Patent Information
- Application Number
- CN202422752196.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-12
AI Technical Summary
When machining L-shaped mechanical parts, existing technologies make it difficult to quickly and reliably perform clamping and positioning, resulting in low efficiency in drilling and tapping operations.
A clamping device is designed, which includes a locating seat and a clamping assembly. The locating seat is provided with an inverted L-shaped locating cavity, and the part to be processed is embedded in the locating cavity. The clamping assembly achieves reliable clamping through studs and a pressure plate. The pressure plate contacts a nylon pad to prevent scratches. The depth of the locating cavity is less than the thickness of the part to expose the surface to be drilled.
It realizes fast and reliable clamping and positioning of parts, improves the production efficiency of drilling and tapping, and ensures processing accuracy and material changing speed.
Smart Images
Figure CN223325903U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and in particular relates to a drilling and clamping device for mechanical parts. Background Art
[0002] See Figure 1-2 As shown, this is a part 10 that our company needs to process and produce. It has an L-shaped structure. During the processing, its L-shaped shape must first be processed by a CNC milling machine to obtain its shape and position dimensions and surface finish that meet the requirements. Then, it is necessary to drill holes on one side and process internal threads. Since the part 10 needs to be placed vertically at this time to facilitate drilling or tapping operations on its side by a drilling machine or milling machine, it needs to be clamped to facilitate rapid positioning and processing production. Summary of the Invention
[0003] The purpose of the utility model is to provide a drilling and clamping device for mechanical parts, which is intended to solve the problem of clamping the parts when the company is performing the drilling process.
[0004] In order to solve the above technical problems, the purpose of this utility model is achieved as follows:
[0005] A drilling clamping device for mechanical parts includes a clamping assembly, which includes a positioning seat and a clamping assembly, and a positioning cavity is provided on the positioning seat; the positioning cavity includes an inverted L-shaped cavity enclosed by a first horizontal positioning surface, a first vertical positioning surface, a second horizontal positioning surface and a second vertical positioning surface, and the upper end of the positioning cavity and the side away from the positioning seat are completely open to the outside; the part to be processed is embedded in the positioning cavity so that the surface to be drilled of the part to be processed is exposed upward; the depth of the positioning cavity is less than the thickness of the part to be processed, and the clamping assembly presses the part to be processed into the positioning cavity.
[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the clamping component includes a fixed seat, a pressure plate, a stud and a rotating part, the stud passes through the fixed seat and is threadedly connected to the fixed seat; the pressure plate is fixed to one end of the stud adjacent to the positioning cavity; an external force is applied to the rotating part to drive the stud to rotate, so that the pressure plate contacts part or all of the surface of the part to be processed located in the positioning cavity.
[0007] On the basis of the above solution and as a preferred solution of the above solution: a nylon pad is provided on the end surface of the pressing plate that contacts the part to be processed.
[0008] On the basis of the above solution and as a preferred solution of the above solution: a horizontal mounting plate and a vertical mounting plate are provided on the positioning seat, and mounting holes are respectively opened on the horizontal mounting plate and the vertical mounting plate.
[0009] On the basis of the above solution and as a preferred solution of the above solution: the upper end surface of the positioning cavity is lower than the height of the surface to be drilled of the part to be processed embedded in the positioning cavity.
[0010] Compared with the existing technology, the present invention has the following outstanding and beneficial technical effects: by opening a positioning cavity on the positioning seat, the part to be processed is embedded in the positioning cavity, the upper and side ends of the positioning cavity are exposed outward, and the depth of the positioning cavity is less than the thickness of the part to be processed. In this way, after the part to be processed is embedded in the positioning cavity, the side part of the part to be processed is exposed outside the positioning cavity. This structure is conducive to the direct contact between the pressure plate of the clamping assembly and the part to be processed, thereby ensuring reliable clamping. The various positioning surfaces of the positioning cavity can position the position of the part to be processed, so as to ensure sufficient accuracy while obtaining a fast clamping and material changing speed, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional diagram of the overall structure of the part to be processed;
[0012] Figure 2 It is the main view of the overall structure of the part to be processed;
[0013] Figure 3 It is a three-dimensional diagram of the clamping assembly;
[0014] Figure 4 This is a three-dimensional view of the clamping assembly from another angle;
[0015] Figure 5 It is the main view of the clamping assembly;
[0016] Figure 6 It is a top view of the clamping assembly;
[0017] Figure 7 yes Figure 6 Cross-sectional view at AA in the middle;
[0018] Figure 8 It is a three-dimensional diagram of the clamping state of the parts to be processed;
[0019] Figure 9 This is a three-dimensional diagram of the clamping state of the parts to be processed from another angle;
[0020] Figure 10 It is a schematic diagram of the coordination between the part to be processed and the positioning cavity. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0022] In the description of this application, it should be understood that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.
[0023] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0024] See Figure 3-10 As shown, the present application discloses a drilling clamping device for mechanical parts, including a clamping assembly 20, the clamping assembly 20 includes a positioning seat 21 and a clamping assembly, and a positioning cavity is opened on the positioning seat 21; see Figure 7As shown, the positioning cavity includes an inverted L-shaped cavity enclosed by a first horizontal positioning surface 21a, a first vertical positioning surface 21b, a second horizontal positioning surface 21d, and a second vertical positioning surface 21c. The upper end of the positioning cavity and the side away from the positioning seat 21 are completely open to the outside, and the part to be processed is embedded in the positioning cavity. The first horizontal surface 13, the first vertical surface 12, the second horizontal surface 16, and the second vertical surface 14 of the part to be processed are respectively in contact with the first horizontal positioning surface 21a, the first vertical positioning surface 21b, the second horizontal positioning surface 21d, and the second vertical positioning surface 21c of the positioning cavity or are located within the clearance range required by the design error. This clearance range can be more conducive to the disassembly and assembly of the part to be processed in the positioning cavity to avoid jamming; preferably, the clearance amount is 0.01-0.05mm. Of course, the connection between the various positioning surfaces of the positioning cavity has a chamfered transition that is compatible with the part to be processed. On the one hand, such a setting is conducive to the embedding of the part to be processed into the positioning cavity, and on the other hand, it is conducive to the clamping assembly to clamp the part to be processed, and the part to be processed is embedded in the positioning cavity so that the surface of the part to be processed to be drilled is exposed upward; the depth of the positioning cavity is less than the thickness of the part to be processed, so that after the part to be processed is embedded in the positioning cavity, part of the side of the part to be processed is exposed outside the positioning cavity. This structure is conducive to the pressure plate of the clamping assembly directly contacting the part to be processed, thereby ensuring reliable clamping. Specifically, the clamping assembly in this embodiment includes a fixed seat 22, a pressure plate 23, a stud 24 and a rotating part 25. The stud 24 passes through the fixed seat 22 and is threadedly connected to the fixed seat 22; the pressure plate 23 is fixed to one end of the stud 24 near the positioning cavity; an external force is applied to the rotating part 25 to drive the stud 24 to rotate, so that the pressure plate 23 contacts part or all of the surface of the part to be processed located in the positioning cavity. In addition, in order to prevent the pressure plate 23 from crushing the side 15 of the part to be processed during the clamping process, this embodiment preferably provides a nylon pad or a polytetrafluoroethylene pad on the end surface of the pressure plate 23 that contacts the part to be processed, so that sufficient pressing force can be ensured during the pressing process while avoiding the problem of scratches.
[0025] Further preferably, the upper end surface of the positioning cavity is lower than the height of the surface to be drilled of the part to be processed embedded in the positioning cavity, so that the surface to be drilled of the part to be processed is fully exposed upward to avoid interference of the positioning seat with the drilling during the drilling process.
[0026] To facilitate installation and fixation of the clamping assembly 20, the positioning seat 21 is preferably provided with a horizontal mounting plate and a vertical mounting plate, each of which has mounting holes. This allows for adaptive installation according to the requirements of different machines, improving installation flexibility.
[0027] Therefore, by opening a positioning cavity on the positioning seat, the part to be processed is embedded in the positioning cavity, the top and side ends of the positioning cavity are exposed outward, and the depth of the positioning cavity is less than the thickness of the part to be processed. In this way, after the part to be processed is embedded in the positioning cavity, part of the side of the part to be processed is exposed outside the positioning cavity. This structure is conducive to the direct contact between the pressure plate of the clamping assembly and the part to be processed, thereby ensuring reliable clamping. The various positioning surfaces of the positioning cavity can position the position of the part to be processed, so as to ensure sufficient accuracy while obtaining a fast clamping and material changing speed, thereby improving production efficiency.
[0028] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A drilling and clamping device for mechanical parts, characterized in that: The invention comprises a clamping assembly (20), wherein the clamping assembly (20) comprises a positioning seat (21) and a clamping assembly, wherein a positioning cavity is provided on the positioning seat (21); the positioning cavity comprises an inverted L-shaped cavity enclosed by a first horizontal positioning surface (21a), a first vertical positioning surface (21b), a second horizontal positioning surface (21d) and a second vertical positioning surface (21c), and the upper end of the positioning cavity and the side away from the positioning seat (21) are completely open to the outside; the part to be processed is embedded in the positioning cavity so that the surface to be drilled of the part to be processed is exposed upward; the depth of the positioning cavity is less than the thickness of the part to be processed, and the clamping assembly presses the part to be processed into the positioning cavity.
2. A mechanical parts drilling and clamping device according to claim 1, characterized in that: The clamping assembly comprises a fixed seat (22), a pressure plate (23), a stud (24) and a rotating portion (25); the stud (24) passes through the fixed seat (22) and is threadedly connected to the fixed seat (22); the pressure plate (23) is fixed to one end of the stud (24) adjacent to the positioning cavity; an external force is applied to the rotating portion (25) to drive the stud (24) to rotate, so that the pressure plate (23) contacts part or all of the surface of the part to be processed located in the positioning cavity.
3. The drilling and clamping device for mechanical parts according to claim 2, characterized in that: A nylon pad is provided on the end surface of the pressing plate (23) that contacts the part to be processed.
4. The drilling and clamping device for mechanical parts according to claim 1, characterized in that: A horizontal mounting plate and a vertical mounting plate are provided on the positioning seat (21), and mounting holes are respectively provided on the horizontal mounting plate and the vertical mounting plate.
5. The drilling and clamping device for mechanical parts according to claim 1, characterized in that: The upper end surface of the positioning cavity is lower than the height of the to-be-drilled surface of the to-be-processed part embedded in the positioning cavity.