Manual clamping structure with internal floating clamping function

Abstract

The utility model relates to the technical field of lathes, and discloses an internal floating clamping manual clamping structure which comprises a positioning mandrel, a threaded groove is formed in the middle end of the positioning mandrel, a bolt taper pin is in threaded connection with the interior of the positioning mandrel, and an installation assembly is arranged at the bottom of the positioning mandrel. The mounting assembly comprises a mounting seat, the mounting seat is arranged at the bottom of the positioning mandrel, uniformly distributed threaded holes are formed in the top of the mounting seat and the top of the positioning mandrel, and uniformly distributed inner hexagon screws are in threaded connection with the interior of the top of the mounting seat and the interior of the top of the positioning mandrel. According to the utility model, the thread groove in the positioning mandrel is matched with the bolt taper pin, and the pressing plate is connected with the pin in a sliding manner, so that a workpiece is accurately clamped. The design of threaded holes and inner hexagon screws of the mounting assembly enhances the stability of the structure, and meanwhile mounting and dismounting are convenient. According to the technical scheme, the problems that a traditional clamping structure is inaccurate in positioning and unstable in clamping force are effectively solved, and clamping reliability and operation convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of lathe technology, specifically to a manual clamping structure with internal floating clamping. Background Technology

[0002] A lathe is a machine tool that primarily uses a cutting tool to machine rotating workpieces. It is the most important type of metal cutting machine tool, and is the most numerous and prevalent type in general machine manufacturing plants; it is also known as the "mother machine." Drills, reamers, taps, dies, and knurling tools can also be used on lathes for various machining operations.

[0003] In machining and assembly processes, clamping devices are key components that ensure the positioning and fixation of workpieces, directly affecting machining accuracy and production efficiency.

[0004] Existing manual clamping structures typically employ external clamping methods, using external clamping devices such as wrenches or nuts to secure the workpiece. However, this external clamping method has several drawbacks. First, the external clamping device has a complex structure, making installation and disassembly cumbersome and inconvenient. Furthermore, the uneven distribution of external clamping force can easily lead to workpiece deformation or displacement during clamping, affecting machining quality and accuracy.

[0005] To address the aforementioned issues, a manual clamping structure with internal floating clamping is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a manual clamping structure with internal floating clamping, which solves the problems of inaccurate positioning and unstable clamping force in existing manual clamping structures in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a manual clamping structure with internal floating clamping, comprising a positioning mandrel, wherein a threaded groove is provided inside the middle end of the positioning mandrel, a bolt tapered pin is threadedly connected inside the positioning mandrel, and an installation component is provided at the bottom of the positioning mandrel;

[0008] The mounting assembly includes a mounting base, which is disposed at the bottom of the positioning mandrel. The mounting base and the top of the positioning mandrel are provided with evenly distributed threaded holes, and the mounting base and the top of the positioning mandrel are internally threaded with evenly distributed internal hexagon screws.

[0009] The positioning mandrel has a slot on its right side, a pressure plate inside the slot, and a sliding groove inside the pressure plate. The sliding groove is slidably connected to a pin, and the pin is fixedly connected to the inside of the right side of the positioning mandrel.

[0010] By adopting the above technical solution, the internal hexagon screw is rotated into the threaded hole for fixation, thereby fixing the mounting base and the positioning mandrel.

[0011] As a further description of the above technical solution: the bolt taper pin is connected with the positioning mandrel through the thread groove, and is used for adjusting the clamping state.

[0012] By adopting the above technical solution, the bolt taper pin is rotated to the thread groove.

[0013] As a further description of the above technical solution: the taper structure of the bolt taper pin can generate greater clamping force during rotation.

[0014] By adopting the above technical solution, the fixing is performed.

[0015] As a further description of the above technical solution: the number and position of the internal hexagonal screws correspond to the thread holes, and are used for ensuring the firm connection of the mounting seat and the positioning mandrel.

[0016] By adopting the above technical solution, the fixing is conveniently performed through the internal hexagonal screws

[0017] As a further description of the above technical solution: the number of the internal hexagonal screws is four, and the internal hexagonal screws are uniformly distributed at the connection part of the mounting seat and the positioning mandrel.

[0018] By adopting the above technical solution, the positioning mandrel is fixed on the mounting seat.

[0019] As a further description of the above technical solution: the pressing plate is slidably connected with the pin and the sliding groove, can move along a predetermined track in the positioning mandrel, and realizes the floating clamping function.

[0020] By adopting the above technical solution, the pressing plate moves in the slot hole.

[0021] As a further description of the above technical solution: the shape and size of the sliding groove are matched with the fixed position and length of the pin, and it is ensured that the pressing plate does not jam during movement.

[0022] By adopting the above technical solution, the pressing plate does not jam in the slot hole.

[0023] Compared with the prior art, the utility model has the beneficial effects as follows:

[0024] The manual clamping structure with internal floating clamping provided by the utility model firstly realizes the accurate clamping of the workpiece through the cooperation of the thread groove in the positioning mandrel and the bolt taper pin and the sliding connection design of the pressing plate and the pin. The design of the thread hole of the mounting assembly and the internal hexagonal screw enhances the stability of the structure, and facilitates the installation and dismounting. The above technical solution effectively solves the problems of inaccurate positioning and unstable clamping force of the traditional clamping structure, and improves the clamping reliability and operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the whole structure schematic view of the utility model.

[0026] Figure 2 It is the whole cross section structure schematic view of the utility model.

[0027] In the figure: 1, positioning mandrel; 2, pressing plate; 3, bolt conical pin; 4, mounting seat; 5, pin; 6, internal hexagonal screw; 7, sliding groove; 8, threaded groove; 9, threaded hole; 10, slot hole. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] For further understanding the contents of the utility model, the utility model is described in detail with reference to the drawings.

[0030] Referring to Figure 1 and Figure 2 , the utility model discloses an internal floating clamping manual clamping structure, comprising.

[0031] As Figure 1 and Figure 2 indicated, the utility model discloses an internal floating clamping manual clamping structure mainly including positioning mandrel 1, pressing plate 2, bolt conical pin 3, mounting seat 4, pin 5, internal hexagonal screw 6, sliding groove 7, threaded groove 8, threaded hole 9 and slot hole 10. The cooperation of these parts ensures the accuracy and stability of the structure.

[0032] Positioning mandrel 1 is the core component of the whole clamping structure, which is designed as a hollow structure, and a threaded groove 8 is formed in the middle end. The design of the threaded groove 8 enables the bolt conical pin 3 to be used in cooperation with the positioning mandrel 1 by threaded connection. The bolt conical pin 3 can move up and down in the threaded groove 8 by rotating, so as to adjust the clamping state. In specific operation, the user can rotate the bolt conical pin 3 to make it rise or fall in the threaded groove 8 to adapt to the thickness and shape of different workpieces, ensuring accurate control of the clamping force.

[0033] The bottom of the positioning mandrel 1 is provided with a mounting assembly, which includes a mounting seat 4. The mounting seat 4 is firmly connected with the positioning mandrel 1 through the cooperation of the threaded hole 9 and the hexagonal socket head cap screw 6. Specifically, the mounting seat 4 and the top of the positioning mandrel 1 are provided with uniformly distributed threaded holes 9. The number and position of the threaded holes 9 can be adjusted according to actual needs to ensure the strength and stability of the connection. The hexagonal socket head cap screw 6 is connected with the positioning mandrel 1 through the threaded hole 9, ensuring the close fit of the mounting seat 4 and the positioning mandrel 1. The design of the mounting seat 4 not only enhances the stability of the structure, but also facilitates the installation and disassembly of the entire clamping structure. In actual application, the user can easily fix or disassemble the clamping structure on the external equipment by tightening or loosening the hexagonal socket head cap screw 6, thereby improving the convenience of operation.

[0034] A slot hole 10 is formed in the right side of the positioning mandrel 1, and a pressing plate 2 is arranged in the slot hole 10. The design of the pressing plate 2 is used to directly contact and clamp the workpiece, ensuring that the workpiece will not shift during clamping. The pressing plate 2 is internally provided with a sliding groove 7, and the sliding groove 7 is in sliding connection with the pin 5. The pin 5 is fixedly connected to the right side of the positioning mandrel 1, and the cooperation with the sliding groove 7 enables the pressing plate 2 to move along a predetermined trajectory, thereby realizing the floating clamping function. In specific operation, when the bolt taper pin 3 moves up and down in the threaded groove 8, the pressing plate 2 can freely move in the positioning mandrel 1 through the sliding connection of the pin 5 and the sliding groove 7, automatically adapting to the changes in the shape of the workpiece surface, thereby improving the clamping accuracy. This floating design enables the clamping structure to better adapt to workpieces of different shapes and sizes, ensuring uniform distribution of clamping force and avoiding deformation or damage of the workpiece due to excessive local pressure during clamping.

[0035] The sliding connection design of the pressing plate 2 and the pin 5 not only improves the clamping accuracy, but also enhances the flexibility of the clamping structure. The shape and size of the sliding groove 7 can be adjusted according to actual needs to ensure that the pressing plate 2 does not jam during movement. The fixed position and length of the pin 5 are also precisely calculated to ensure that its cooperation with the sliding groove 7 can achieve the expected floating effect. In actual application scenarios, such as in the workpiece clamping process of a numerical control machine tool, this floating design can significantly improve the machining accuracy and surface quality of the workpiece.

[0036] The cooperation design of the bolt conical pin 3 and the threaded groove 8 also plays an important role. The conical structure of the bolt conical pin 3 can generate greater clamping force in the rotating process, thereby effectively fixing the workpiece. In specific operation, the user can rotate the bolt conical pin 3 manually, so that it gradually rises in the threaded groove 8, thereby pushing the pressing plate 2 to move towards the workpiece, achieving clamping. When it is necessary to loosen the workpiece, the user only needs to rotate the bolt conical pin 3 in the opposite direction, so that it descends in the threaded groove 8, and the pressing plate 2 will gradually move away from the workpiece, thereby loosening the clamping state. This manual adjustment mode not only has simple operation, but also can flexibly adjust the size of the clamping force according to actual needs, meeting different machining requirements

[0037] Working principle: The mounting seat 4 is firmly connected with the positioning mandrel 1 through the uniformly distributed internal hexagonal screws 6. The internal hexagonal screws 6 are matched with the threaded holes 9 opened at the top of the mounting seat 4 and the positioning mandrel 1, and the number is four, which are uniformly distributed at the connection to ensure the stability of the connection. The bolt conical pin 3 is screwed with the threaded groove 8 in the middle end of the positioning mandrel 1, and in the rotating process, the conical structure of the bolt conical pin 3 can generate greater clamping force, thereby adjusting the clamping state. The pressing plate 2 is arranged in the groove hole 10 on the right side of the positioning mandrel 1, and the sliding groove 7 in the pressing plate 2 is slidingly connected with the pin 5 fixed on the right side of the positioning mandrel 1. Because the shape and size of the sliding groove 7 match the fixed position and length of the pin 5, the pressing plate 2 can move along the predetermined track in the positioning mandrel 1, realizing the floating clamping function and meeting the clamping requirements of workpieces of different shapes and sizes.

[0038] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An internally floating clamped manual clamping structure comprising a positioning mandrel (1), characterized in that: The positioning spindle (1) is internally provided with a threaded groove (8) at the middle end, and a bolt conical pin (3) is threadedly connected in the positioning spindle (1), and the positioning spindle (1) is provided with a mounting assembly at the bottom; The mounting assembly comprises a mounting seat (4) arranged at the bottom of the positioning spindle (1), and the mounting seat (4) and the top of the positioning spindle (1) are provided with uniformly distributed threaded holes (9), and the mounting seat (4) and the top of the positioning spindle (1) are internally threadedly connected with uniformly distributed hexagonal socket head cap screws (6); The positioning spindle (1) is internally provided with a threaded groove (8) at the middle end, and a bolt conical pin (3) is threadedly connected in the positioning spindle (1), and the positioning spindle (1) is provided with a mounting assembly at the bottom; 2. A manually operated internal floating clamp according to claim 1, wherein: The bolt conical pin (3) is connected with the positioning spindle (1) through the threaded groove (8), and is used for adjusting the clamping state.

3. A manually operated internal floating clamp according to claim 2, wherein: The conical structure of the bolt conical pin (3) can generate greater clamping force during rotation.

4. A manually operated internal floating clamp according to claim 1, wherein: The number and position of the hexagonal socket head cap screws (6) correspond to the threaded holes (9), and are used for ensuring the firm connection of the mounting seat (4) and the positioning spindle (1).

5. A manually operated internal floating clamp according to claim 4, wherein: The number of the hexagonal socket head cap screws (6) is four, which are uniformly distributed at the connection between the mounting seat (4) and the positioning spindle (1).

6. A manually operated internal floating clamp according to claim 1, wherein: The sliding connection of the pressing plate (2) with the sliding groove (7) through the pin (5) can move along the predetermined track in the positioning spindle (1), and realizes the floating clamping function.

7. A manually operated internal floating clamp according to claim 1, wherein: The shape and size of the sliding groove (7) are matched with the fixed position and length of the pin (5), so that the pressing plate (2) will not be stuck during movement.

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