Tool clamp

Abstract

The utility model discloses a work fixture which comprises a cylindrical installation seat and a butt joint mechanism used for being in butt joint with a machine tool, the butt joint mechanism is arranged at one end of the installation seat, an annular installation groove is formed in the circumferential side of the installation seat, a plurality of positioning and clamping mechanisms used for positioning and clamping workpieces are arranged in the installation groove of the installation seat, and the positioning and clamping mechanisms are arranged on the installation seat. And the positioning and clamping mechanisms are arranged around the center of the mounting seat at intervals. The tool clamp has the advantages that repeated shutdown for workpiece clamping operation is not needed, the working efficiency is improved, the overall structure is compact, and the layout is reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of food and drug packaging machinery and equipment, and particularly relates to a fixture. Background Art

[0002] There is a double-station fixture for a CNC milling machine with the application number 202223601687.3, which includes a mounting base. One end of the mounting base is provided with a first placement part for placing a first workpiece, a first side pressing mechanism for pressing the first workpiece from the side of the first workpiece, and an upper surface pressing mechanism for pressing the first workpiece from the upper surface of the first workpiece. One side of the mounting base is provided with a second placement part for placing a second workpiece and a second side pressing mechanism for pressing the second workpiece from the side of the second workpiece. The first placement part and the second placement part are arranged on different sides of the mounting base, one is arranged at the front end and the other is arranged at the side. The position is reasonably set, the occupied space is small, and it can be used to clamp different workpieces, and it can be used to clamp and process two different types of workpieces that need to process different parts. However, for one workpiece, only one can be clamped at a time. After one workpiece is processed, it needs to be disassembled and reinstalled to clamp another workpiece for processing. In this way, it is necessary to repeatedly stop the machine to clamp the workpiece, which affects the working efficiency of the CNC milling machine. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fixture that does not require repeated workpiece clamping operations during machine stops, improves work efficiency, has a compact overall structure, and a reasonable layout.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A fixture includes a cylindrical mounting base and a docking mechanism for docking with a machine tool. The docking mechanism is arranged at one end of the mounting base. An annular mounting groove is arranged on the circumferential side of the mounting base. The mounting base is provided with a plurality of positioning and clamping mechanisms for positioning and clamping workpieces in the mounting groove, and each positioning and clamping mechanism is arranged at intervals around the center of the mounting base.

[0006] As a further improvement of the above technical solution:

[0007] The positioning and clamping mechanism includes a positioning pin for sleeving with the workpiece and a pressing component for pressing the workpiece. The positioning pin and the pressing component are arranged at intervals on the mounting base.

[0008] The pressing component and the positioning pin are respectively arranged on the two side walls of the mounting groove.

[0009] The positioning and clamping mechanism further includes a limit pin, and the limit pin is arranged on the side wall of the mounting groove where the positioning pin is installed.

[0010] The pressing component includes a pressing rod, a guide sleeve, a rotating handle and an adapter bracket. The guide sleeve is arranged on the mounting seat. The pressing rod is movably inserted through the guide sleeve. One end of the adapter bracket is rotatably connected to the guide sleeve. One end of the rotating handle is provided with a first hinge portion and a second hinge portion at intervals. The first hinge portion is rotatably connected to the other end of the adapter bracket. The second hinge portion is rotatably connected to the pressing rod. A pressing member is provided at one end of the pressing rod facing the positioning pin.

[0011] The pressing member is threadedly connected to the pressing rod.

[0012] The pressing rod and the positioning pin are coaxial.

[0013] The pressing rod, the positioning pin and the limiting pin all extend along the axial direction of the mounting groove.

[0014] Each of the positioning and clamping mechanisms is evenly arranged at intervals around the center of the mounting seat.

[0015] The docking mechanism is detachably fixed on the mounting seat.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] For the tooling fixture of the present utility model, on the one hand, the mounting seat is provided with a plurality of positioning and clamping mechanisms arranged at intervals around the center of the mounting seat, and multiple workpieces can be clamped at one time, eliminating the need for repeated workpiece clamping operations during machine stops, thereby improving work efficiency; on the other hand, each positioning and clamping mechanism is installed in an annular mounting groove and arranged at intervals around the center of the mounting seat 1, with a compact overall structure and a reasonable layout. Description of the Drawings

[0018] Figure 1 is a schematic three-dimensional structure diagram of the tooling fixture of the present utility model.

[0019] Figure 2 is Figure 1 an enlarged structural diagram of part A in

[0020] Figure 3 is Figure 1 an enlarged structural diagram of part B in

[0021] Figure 4 is a separation diagram of the mounting seat and the docking mechanism of the tooling fixture of the present utility model.

[0022] Each label in the figure represents:

[0023] 1. Mounting base; 11. Mounting groove; 2. Docking mechanism; 3. Workpiece; 4. Positioning and clamping mechanism; 41. Positioning pin; 42. Tightening assembly; 421. Tightening rod; 422. Guide sleeve; 423. Rotating handle; 424. Adapter bracket; 425. First hinge portion; 426. Second hinge portion; 427. Pressing member; 5. Limit pin; 6. Docking pin; 7. Positioning rivet; 8. Docking hole; 9. Positioning hole. Detailed implementation mode

[0024] The following further describes the present utility model in detail with reference to the accompanying drawings of the specification and specific embodiments.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 construed as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly specified and limited, the terms "assembly", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Figures 1 to 4 An embodiment of the tooling fixture of the present utility model is shown. The tooling fixture of this embodiment includes a cylindrical mounting base 1 and a docking mechanism 2 for docking with a machine tool. The docking mechanism 2 is provided at one end of the mounting base 1. An annular mounting groove 11 is provided on the circumferential side of the mounting base 1. The mounting base 1 is provided with a plurality of positioning and clamping mechanisms 4 for positioning and clamping the workpiece 3 in the mounting groove 11, and each positioning and clamping mechanism 4 is arranged at intervals around the center of the mounting base 1.

[0029] On the one hand, the mounting base 1 is provided with a plurality of positioning and clamping mechanisms 4 arranged at intervals around the center of the mounting base 1. Multiple workpieces 3 can be clamped at one time, eliminating the need for repeated downtime for clamping the workpieces 3, thus improving work efficiency. On the other hand, each positioning and clamping mechanism 4 is installed in an annular mounting groove 11 and arranged at intervals around the center of the mounting base 1. The overall structure is compact and the layout is reasonable.

[0030] Furthermore, as Figure 1 and Figure 3 shown, in this embodiment, the positioning and clamping mechanism 4 includes a positioning pin 41 for sleeving with the workpiece 3 and a pressing component 42 for pressing against the workpiece 3. The positioning pin 41 and the pressing component 42 are arranged at intervals on the mounting base 1. During use, the workpiece 3 is sleeved on the positioning pin 41, and the pressing component 42 presses against the workpiece 3, clamping the workpiece 3 between the positioning pin 41 and the pressing component 42. This one-sleeving and one-pressing method realizes the clamping and positioning of the workpiece 3, making it convenient to clamp the workpiece 3 and providing high positioning stability for the workpiece 3.

[0031] Furthermore, in this embodiment, the pressing component 42 and the positioning pin 41 are respectively arranged on the two side walls of the mounting groove 11. This facilitates applying a clamping force to the workpiece 3.

[0032] Furthermore, in this embodiment, the positioning and clamping mechanism 4 further includes a limit pin 5, and the limit pin 5 is arranged on the side wall of the mounting groove 11 where the positioning pin 41 is installed. The positioning pin 41 performs auxiliary positioning on the workpiece 3, further improving the positioning stability of the workpiece 3.

[0033] Furthermore, as Figure 1 and Figure 2 shown, in this embodiment, the pressing component 42 includes a pressing rod 421, a guide sleeve 422, a rotating handle 423 and an adapter frame 424. The guide sleeve 422 is installed on the mounting base 1, the pressing rod 421 is movably inserted through the guide sleeve 422, one end of the adapter frame 424 is rotatably connected to the guide sleeve 422, one end of the rotating handle 423 is provided with a first hinge portion 425 and a second hinge portion 426 at intervals. The first hinge portion 425 is rotatably connected to the other end of the adapter frame 424, and the second hinge portion 426 is rotatably connected to the pressing rod 421. A pressing member 427 is provided at the end of the pressing rod 421 facing the positioning pin 41. Rotating the rotating handle 423 forward and backward can drive the adapter frame 424 to rotate and the pressing rod 421 to axially move, thereby realizing the pressing and releasing of the workpiece 3. This pressing component 42 has a simple structure and is convenient to operate. Specifically, the rotation axes of the first hinge portion 425, the second hinge portion 426 and the adapter frame 424 are parallel. When the rotation axes of the first hinge portion 425, the second hinge portion 426 and the adapter frame 424 are coplanar and perpendicularly intersect with the central axis of the pressing rod 421, the pressing and locking state of the workpiece 3 is achieved.

[0034] Furthermore, asFigure 3 As shown, in this embodiment, the pressing member 427 is threadedly connected to the pressing rod 421. This facilitates adjusting the axial position of the pressing member 427 relative to the pressing rod 421, so as to adapt to the size of the workpiece 3.

[0035] Furthermore, in this embodiment, the pressing rod 421 and the positioning pin 41 are coaxial. Further, in this embodiment, the pressing rod 421, the positioning pin 41, and the limiting pin 5 all extend axially along the installation groove 11.

[0036] Furthermore, in this embodiment, the positioning and clamping mechanisms 4 are evenly spaced around the center of the mounting base 1. This facilitates rotating the mounting base 1 to replace the workpiece 3 for processing.

[0037] Furthermore, in this embodiment, the docking mechanism 2 is detachably fixed to the mounting base 1. This facilitates the disassembly of the mounting base 1 and the docking mechanism 2. Preferably, on the end face of the mounting base 1 for docking with the docking mechanism 2, there are a docking pin 6 and a positioning stud 7 coaxial with the mounting base 1. On the corresponding end face of the docking mechanism 2, there are a docking hole 8 and a positioning hole 9 coaxial with the docking mechanism 2. The docking pin 6 is inserted into the docking hole 8, and the positioning stud 7 is inserted into the positioning hole 9. Through the docking pin 6 and the positioning stud 7, it is convenient to perform alignment connection with the docking mechanism 2. Preferably, there are multiple docking holes 8 on the docking mechanism 2, which are spaced around the center of the positioning hole 9 (preferably evenly spaced). In this way, it is convenient to rotate the docking mechanism 2 to adjust the docking orientation.

[0038] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes and modifications to the technical solution of the present utility model by using the above-disclosed technical content, or modify it into equivalent embodiments with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A fixture, characterized in that: The invention comprises a cylindrical mounting seat (1) and a docking mechanism (2) for docking with a machine tool, wherein the docking mechanism (2) is arranged at one end of the mounting seat (1), and an annular mounting groove (11) is provided on the circumference of the mounting seat (1). The mounting seat (1) is provided with a plurality of positioning and clamping mechanisms (4) for positioning and clamping a workpiece (3) in the mounting groove (11), and each of the positioning and clamping mechanisms (4) is arranged at intervals around the center of the mounting seat (1). The positioning and clamping mechanisms (4) comprise a positioning pin (41) for sleeved engagement with the workpiece (3) and a clamping assembly (42) for clamping the workpiece (3), and the positioning pin (41) and the clamping assembly (42) are arranged at intervals on the mounting seat (1).

2. The tooling fixture according to claim 1, wherein: The tightening assembly (42) and the positioning pin (41) are respectively arranged on the side walls on both sides of the installation groove (11).

3. The jig according to claim 2, wherein: The positioning and clamping mechanism (4) further comprises a limiting pin (5), wherein the limiting pin (5) is arranged on a side wall of the mounting groove (11) where the positioning pin (41) is mounted.

4. The workholding fixture according to claim 3, wherein: The tightening assembly (42) includes a tightening rod (421), a guide sleeve (422), a rotating handle (423) and an adapter frame (424), wherein the guide sleeve (422) is mounted on the mounting seat (1), the tightening rod (421) is movably inserted into the guide sleeve (422), one end of the adapter frame (424) is rotatably connected to the guide sleeve (422), one end of the rotating handle (423) is provided with a first hinge portion (425) and a second hinge portion (426) at intervals, the first hinge portion (425) is rotatably connected to the other end of the adapter frame (424), the second hinge portion (426) is rotatably connected to the tightening rod (421), and a pressing member (427) is provided at one end of the tightening rod (421) facing the positioning pin (41).

5. The workholding fixture according to claim 4, wherein: The pressing member (427) is threadedly connected to the pressing rod (421).

6. The tooling fixture according to claim 4, characterized in that: The abutting rod (421) and the positioning pin (41) are coaxial.

7. The jig and fixture according to claim 6, characterized in that: The pressing rod (421), the positioning pin (41) and the limiting pin (5) all extend axially along the installation slot (11).

8. The jig according to any one of claims 1 to 7, characterized in that: The positioning and clamping mechanisms (4) are evenly spaced around the center of the mounting seat (1).

9. The jig and fixture according to any one of claims 1 to 7, characterized in that: The docking mechanism (2) is detachably fixed on the mounting seat (1).

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