Turn-milling clamp

Abstract

The utility model provides a turning and milling clamp, relates to the technical field of workpiece clamping devices, and solves the technical problems that the turning and milling clamp cannot stably clamp special-shaped workpieces and rotation is influenced by centrifugal force. The clamping device comprises a mounting disc used for mounting and fixing, a rotating disc rotationally connected to the mounting disc and a clamping disc connected to the rotating disc and used for clamping workpieces, and the clamping disc is provided with a plurality of sets of clamping rods which stretch out and draw back in the axial direction and used for clamping the workpieces. The mounting disc is further provided with a plurality of sets of fixing pieces used for fixing the rotating disc and the clamping rods. According to the utility model, the clamping rod is axially telescopic, so that the clamping rod is hardly influenced by radial centrifugal force, and the clamping is stable; the fixing plate fixes the rotating disc and the clamping rod at the same time, and the clamping rod is prevented from contracting while the rotating disc is prevented from being fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping devices, and more specifically, to a turning and milling fixture. Background Technique

[0002] A milling machine is a machine tool with a wide range of uses. On a milling machine, planes (horizontal planes, vertical planes), grooves (keyways, T-slots, dovetail grooves, etc.), tooth-dividing parts (gears, spline shafts, sprockets), helical surfaces (threads, helical grooves), and various curved surfaces can be machined. In addition, it can also be used for machining the surfaces of rotating bodies, internal holes, and cutting work, etc. When the milling machine is working, the workpiece is installed on the workbench or accessories such as indexing heads. The rotation of the milling cutter is the main movement, supplemented by the feed movement of the workbench or milling head, and the workpiece can obtain the required machined surface. Due to multi-edge interrupted cutting, the productivity of the milling machine is relatively high. Simply put, a milling machine is a machine tool that can perform milling, drilling, and boring operations on workpieces.

[0003] During milling machining, the cutting force is large, and it is interrupted cutting with relatively large vibration. Therefore, the clamping force of the milling machine fixture is required to be large, and the requirements for the stiffness and strength of the fixture are relatively high. Currently used milling machine fixtures have problems with poor clamping effects for different shaped workpieces.

[0004] Existing milling machine fixtures, such as the milling machine fixture angle adjustment device and milling machine fixture proposed in the patent with the publication number CN117140115A, can clamp shaped parts through the workpiece, and fix the shaped part by the radial sliding of the pressing block in the chute. However, during the machining of the milling cutter, the workpiece is prone to strong vibration, and in order to facilitate the machining of different surfaces of the workpiece, sometimes the workpiece needs to be rotated, and the rotational centrifugal force has a certain impact on the fixture fixation. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a turning and milling fixture to solve the technical problems of unstable clamping of shaped parts and rotation affected by centrifugal force in existing turning and milling fixtures.

[0006] The embodiments of the present utility model are realized through the following technical solutions:

[0007] A turning and milling fixture includes a mounting disk for installation and fixation, a rotating disk rotatably connected to the mounting disk, and a clamping disk connected to the rotating disk for clamping the workpiece. The clamping disk is provided with a plurality of groups of clamping rods for axially expanding and contracting to clamp the workpiece, and the mounting disk is also provided with a plurality of groups of fixing members for fixing the rotating disk and the clamping rods.

[0008] Preferably, the fixing member includes a fixing rod connected to the mounting disk for limiting, a chute for slidably connecting the fixing rod, and a fixing plate for radially expanding and contracting to fix the rotating disk and the clamping rods.

[0009] Preferably, the fixing member further includes a hinge rod with two ends respectively hinged to the mounting disc and the fixing member.

[0010] Preferably, the rotating disc is provided with a plurality of groups of through slots for passing through the fixing plate, and the clamping rod is provided with a groove for clamping into the fixing plate.

[0011] Preferably, adjacent two groups of the clamping rods are provided with a set of fixing members for simultaneously fixing the adjacent two groups of clamping rods, and the grooves of the connected clamping rods are arranged oppositely.

[0012] Preferably, the fixing rod is further provided with a fixing nut for fixing the fixing member.

[0013] Preferably, a central rod for fixing a pin workpiece or a hollow workpiece is telescopically arranged at the center position of the clamping disc.

[0014] By adopting the technical solution, a workpiece can be clamped by a plurality of groups of axially telescopic clamping rods in cooperation with the telescopic central rod. According to the shape and size of the workpiece, the clamping rods to be fixed are selected to fix the workpiece. And because the clamping rods are axially telescopic, they are hardly affected by the radial centrifugal force, and the clamping is stable.

[0015] During fixed machining, through the telescoping of the fixing member, after the fixing plate passes through the through slot, it is clamped into the groove. The fixing plate fixes both the rotating disc and the clamping rod at the same time, preventing the rotation of the rotating disc and the contraction of the clamping rod.

[0016] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0017] 1. The clamping rods of the present utility model are axially telescopic, so they are hardly affected by the radial centrifugal force, and the clamping is stable.

[0018] 2. The fixing plate of the present utility model fixes both the rotating disc and the clamping rod at the same time, preventing the rotation of the rotating disc and the contraction of the clamping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 FIG. is a three-dimensional structural diagram of the turning and milling fixture provided in Embodiment 1 of the present utility model;

[0021] Figure 2 FIG. is a side view structural diagram of the turning and milling fixture provided in Embodiment 1 of the present utility model;

[0022] Figure 3 This is a top - view structural schematic diagram of the turning - milling fixture provided in Embodiment 1 of the present utility model;

[0023] Figure 4 This is a structural schematic diagram of the clamping rod of the turning - milling fixture provided in Embodiment 2 of the present utility model;

[0024] Figure 5 This is a structural schematic diagram of the fixing part of the turning - milling fixture provided in Embodiment 2 of the present utility model;

[0025] Reference numerals: 1, mounting disc; 2, rotating disc; 21, through - slot; 3, fixing part; 31, hinged rod; 32, fixing rod; 321, fixing nut; 33, sliding - slot; 34, fixing plate; 4, clamping disc; 51, clamping rod; 511, groove; 52, central rod. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0028] It should be noted that: like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of this application is usually placed during use. It 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 thus should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", and "connected" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. 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 circumstances.

[0031] Embodiment 1

[0032] A turning and milling fixture includes a mounting disk 1 for installation and fixation, a rotating disk 2 rotatably connected to the mounting disk 1, and a clamping disk 4 connected to the rotating disk 2 for clamping a workpiece. The clamping disk 4 is provided with a plurality of groups of clamping rods 51 that axially expand and contract to clamp the workpiece, and the mounting disk 1 is also provided with a plurality of groups of fixing members 3 for fixing the rotating disk 2 and the clamping rods 51.

[0033] In this embodiment, a group of fixing members 3 for simultaneously fixing two adjacent groups of clamping rods 51 are provided between two adjacent groups of the clamping rods 51, and the grooves 511 of the connected clamping rods 51 are arranged oppositely.

[0034] In this embodiment, the fixing rod 32 is further provided with a fixing nut 321 for fixing the fixing member 3.

[0035] In this embodiment, a center rod 52 for fixing a pin workpiece or a hollow workpiece is telescopically provided at the center position of the clamping disk 4.

[0036] Working principle and usage method:

[0037] The workpiece can be clamped by a plurality of groups of axially telescopic clamping rods 51 in cooperation with the telescopic center rod 52. According to the shape and size of the workpiece, the clamping rods 51 that need to be fixed are selected to fix the workpiece. And because the clamping rods 51 are axially telescopic, they are hardly affected by the radial centrifugal force, and the clamping is stable;

[0038] During fixed machining, through the expansion and contraction of the fixing member 3, the fixing plate 34 is inserted into the groove 511 after passing through the through groove 21. The fixing plate 34 fixes both the rotating disk 2 and the clamping rods 51 at the same time, preventing the rotation of the rotating disk 2 and the contraction of the clamping rods 51.

[0039] Embodiment 2

[0040] The difference between this embodiment and Embodiment 1 is only that in this embodiment, the fixing member 3 includes a fixing rod 32 connected to the mounting disk 1 for limiting, a sliding groove 33 for slidably connecting the fixing rod 32, and a fixing plate 34 for radially expanding and contracting to fix the rotating disk 2 and the clamping rods 51.

[0041] In this embodiment, the fixing member 3 further includes a hinge rod 31 whose two ends are respectively hinged to the mounting plate 1 and the fixing member 3.

[0042] In this embodiment, the rotating disk 2 is provided with a plurality of groups of through slots 21 for passing through the fixing plate 34, and the clamping rod 51 is provided with a groove 511 for being clamped into the fixing plate 34.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A milling fixture, comprising a mounting plate (1) for mounting and fixing, a rotating plate (2) rotatably connected to the mounting plate (1), and a clamping plate (4) connected to the rotating plate (2) for clamping a workpiece, characterized in that: The clamping disk (4) is provided with a plurality of groups of axially retractable clamping rods (51) for clamping workpieces, and the mounting disk (1) is also provided with a plurality of groups of fixing members (3) for fixing the rotating disk (2) and the clamping rods (51).

2. A turning and milling fixture according to claim 1, characterized in that: The fixing member (3) comprises a fixing rod (32) connected to the mounting plate (1) for limiting position, a sliding groove (33) for slidably connecting the fixing rod (32), and a fixing plate (34) for radially telescopically fixing the rotating plate (2) and the clamping rod (51).

3. A turning and milling fixture according to claim 2, characterized in that: The fixing member (3) further comprises a hinged rod (31) with two ends respectively hinged to the mounting plate (1) and the fixing member (3).

4. A turning and milling fixture according to claim 2 or 3, characterized in that: The rotating disk (2) is provided with a plurality of through slots (21) for passing through the fixing plate (34), and the clamping rod (51) is provided with a groove (511) for clamping into the fixing plate (34).

5. A turning and milling fixture according to claim 4, characterized in that: Two adjacent groups of clamping rods (51) are provided with a group of fixing members (3) for simultaneously fixing the two adjacent groups of clamping rods (51), and the grooves (511) connecting the clamping rods (51) are arranged opposite to each other.

6. A turning and milling fixture according to claim 4, characterized in that: The fixing rod (32) is also provided with a fixing nut (321) for fixing the fixing member (3).

7. A turning and milling fixture according to any one of claims 1 to 3, characterized in that: The center position of the clamping disc (4) is also telescopically provided with a center rod (52) for fixing a pin workpiece or a hollow workpiece.

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