CNC machining fixing tool

Abstract

The utility model discloses a CNC machining fixing tool which comprises a base, an X-axis clamping assembly, a Y-axis clamping assembly and a Z-axis clamping assembly, the X-axis clamping assembly is arranged on the base, the X-axis clamping assembly can clamp a workpiece in the X-axis direction, the Y-axis clamping assembly is arranged on the base, the Y-axis clamping assembly can clamp the workpiece in the Y-axis direction, and the Z-axis clamping assembly can clamp the workpiece in the Z-axis direction. The Z-axis clamping assembly comprises a first driving part, a supporting seat and a pressing rod, the first driving part is arranged on the base, the supporting seat is arranged on the base, the middle of the pressing rod is rotatably connected with the supporting seat, one end of the pressing rod is in transmission connection with the first driving part, the other end of the pressing rod extends to the position above the workpiece, and the first driving part can drive the pressing rod to rotate around the supporting seat and press the workpiece. The first driving piece can be located on one side of the workpiece, the space above the workpiece is not blocked, machining is convenient, the pressing rod can form a rod-lever structure, and therefore the driving force of the first driving piece can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, and in particular to a CNC machining fixture. Background Technology

[0002] When machining workpieces using CNC, fixtures are needed to hold the workpiece in place. For irregularly shaped workpieces, which have many surfaces to be machined, the fixtures need to hold the workpiece in multiple directions. In the existing technology, fixtures are generally set up on the X, Y and Z axes to hold the workpiece in place. The fixtures occupy a lot of space, and the CNC tool needs to avoid the fixtures during machining, making the machining process more complicated. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a CNC machining fixture that can solve the problem of large space occupation by existing fixtures.

[0004] A CNC machining fixture according to a first aspect of the present invention includes: a base, an X-axis clamping assembly, a Y-axis clamping assembly, and a Z-axis clamping assembly. The X-axis clamping assembly is disposed on the base and is capable of clamping a workpiece in the X-axis direction. The Y-axis clamping assembly is disposed on the base and is capable of clamping the workpiece in the Y-axis direction. The Z-axis clamping assembly includes a first driving member, a support base, and a pressure rod. The first driving member is disposed on the base, the support base is disposed on the base, and the middle part of the pressure rod is rotatably connected to the support base. One end of the pressure rod is drivenly connected to the first driving member, and the other end extends above the workpiece. The first driving member is capable of driving the pressure rod to rotate around the support base and press it against the workpiece.

[0005] A CNC machining fixture according to an embodiment of the present invention has at least the following beneficial effects:

[0006] Before machining irregularly shaped workpieces, the workpieces can be clamped and fixed to the base in the X-axis and Y-axis directions using X-axis and Y-axis clamping assemblies to restrict the lateral movement of the workpieces. For the vertical direction, they can be fixed using the Z-axis clamping assembly. The first driving member can be located on one side of the workpiece, without obstructing the space above the workpiece, which facilitates machining. The middle part of the pressure rod is rotatably engaged with the support base. The first driving member can drive one end of the pressure rod to move upward, so that the other end of the pressure rod can move downward and press the workpiece against the base to achieve fixation in the Z-axis direction. Furthermore, the pressure rod can extend from one side of the workpiece to above the workpiece, occupying little space. Moreover, the pressure rod can form a lever structure, thereby reducing the driving force required by the first driving member.

[0007] According to some embodiments of the present invention, the X-axis clamping assembly includes a second driving member, a second clamping part, and a second positioning part. The second driving member and the second positioning part are spaced apart along the X-axis direction. The second clamping part is connected to the second driving member in a transmission manner. The second driving member can drive the second clamping part to move toward the second positioning part.

[0008] According to some embodiments of the present invention, the Y-axis clamping assembly includes a third driving member, a third clamping part, and a third positioning part. The third driving member and the third positioning part are spaced apart along the Y-axis direction. The third clamping part is connected to the third driving member in a transmission manner. The third driving member can drive the third clamping part to move toward the third positioning part.

[0009] According to some embodiments of the present invention, the base is provided with a mounting hole, the first driving member is located below the base, the first driving member is provided with an output rod, and the output rod can pass through the mounting hole and connect to the pressure rod.

[0010] According to some embodiments of the present invention, the support base includes a base and a movable base, one end of the movable base being rotatably connected to the base and the other end being rotatably connected to the pressure rod.

[0011] According to some embodiments of the present invention, the second driving member includes an independent dual-cylinder cylinder component, the independent dual-cylinder cylinder component includes a first cylinder driving part and a second cylinder driving part, the second clamping part includes a first rod, a second rod and a clamping block, the clamping block has a waist-shaped first connecting hole and a second connecting hole, one end of the first rod is connected to the first cylinder driving part, and the other end is connected to the first connecting hole by a fastener, one end of the second rod is connected to the second cylinder driving part, and the other end is connected to the second connecting hole by a fastener.

[0012] According to some embodiments of the present invention, the second clamping part includes a first telescopic rod, a second telescopic rod, and a clamping block. Both the first telescopic rod and the second telescopic rod are capable of telescopically adjusting their length. The clamping block has a waist-shaped first connecting hole and a second connecting hole. One end of the first telescopic rod is connected to the second driving member, and the other end is connected to the first connecting hole through a fastener. One end of the second telescopic rod is connected to the second driving member, and the other end is connected to the second connecting hole through a fastener.

[0013] According to some embodiments of the present invention, the Z-axis clamping assembly further includes a first positioning part, which is disposed on the top surface of the base.

[0014] According to some embodiments of the present invention, the pressure rod is provided with a detachable pressure block, which is located at the bottom of the pressure rod and is disposed near the end of the pressure rod.

[0015] According to some embodiments of this utility model, the pressure block is made of an elastic material.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a general schematic diagram of some embodiments of the present utility model;

[0019] Figure 2 for Figure 1 A schematic diagram from another direction;

[0020] Figure 3 This is a schematic diagram of the structure of the hidden workpiece in some embodiments;

[0021] Figure 4 These are cross-sectional views of some embodiments of the present invention;

[0022] Figure 5 This is a structural schematic diagram of some embodiments of the X-axis clamping assembly.

[0023] Figure label:

[0024] Base 100, mounting hole 110;

[0025] X-axis clamping assembly 200, second drive member 210, second clamping part 220, first rod 221, second rod 222, clamping block 223, first connecting hole 2231, second connecting hole 2232, second positioning part 230;

[0026] Y-axis clamping assembly 300, third drive component 310, third clamping part 320, and third positioning part 330;

[0027] Z-axis clamping assembly 400, first drive component 410, support base 420, base 421, movable seat 422, pressure rod 430, pressure block 431, first positioning part 440;

[0028] Workpiece 500. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Reference Figures 1 to 4A CNC machining fixture according to a first aspect embodiment of the present invention includes a base 100, an X-axis clamping assembly 200, a Y-axis clamping assembly 300, and a Z-axis clamping assembly 400. The X-axis clamping assembly 200 is disposed on the base 100 and is capable of clamping a workpiece 500 in the X-axis direction. The Y-axis clamping assembly 300 is disposed on the base 100 and is capable of clamping the workpiece 500 in the Y-axis direction. The Z-axis clamping assembly 400 includes a first driving member 410, a support base 420, and a pressure rod 430. The first driving member 410 is disposed on the base 100, the support base 420 is disposed on the base 100, the middle part of the pressure rod 430 is rotatably connected to the support base 420, one end of the pressure rod 430 is connected to the first driving member 410 for transmission, and the other end extends above the workpiece 500. The first driving member 410 can drive the pressure rod 430 to rotate around the support base 420 and press it against the workpiece 500. Before machining the irregularly shaped workpiece 500, the workpiece 500 can be clamped and fixed to the base 100 in the X-axis and Y-axis directions by the X-axis clamping assembly 200 and the Y-axis clamping assembly 300 to restrict the lateral movement of the workpiece 500. For the vertical direction, it can be fixed by the Z-axis clamping assembly 400. The first driving member 410 can be located on one side of the workpiece 500, without obstructing the space above the workpiece 500, which is convenient for machining. The middle part of the pressure rod 430 is rotatably engaged with the support base 420. The first driving member 410 can drive one end of the pressure rod 430 to move upward, so that the other end of the pressure rod 430 can move downward and press the workpiece 500 against the base 100 to achieve fixation in the Z-axis direction. The pressure rod 430 can extend from one side of the workpiece 500 to above the workpiece 500, occupying little space. The pressure rod 430 can form a lever structure, which can reduce the driving force of the first driving member 410.

[0033] Specifically, the specific structures of the X-axis clamping assembly 200 and the Y-axis clamping assembly 300 are not limited here. They can be configured as clamping mechanisms to clamp and fix the workpiece 500 in the X and Y axis directions without affecting the space above the workpiece 500, facilitating machining with cutting tools. In the Z-axis direction, it is fixed by a pressure rod 430. The pressure rod 430 can be arranged laterally above the workpiece 500. The support base 420 and the first driving member 410 can both be set on one side of the workpiece 500 so as not to affect the machining of the workpiece 500. The pressure rod 430 can extend laterally to the workpiece 500. At position 00, the diameter of the pressure rod 430 is small, which causes less obstruction to the cutting tool. The first driving member 410 can be a cylinder. The cylinder rod can be pivotally connected to one end of the pressure rod 430 through a transmission structure. The cylinder can drive the cylinder rod to extend upward, thereby driving the pressure rod 430 to rotate around the support base 420 through the transmission structure. The other end of the pressure rod 430 can then press against the workpiece 500. By setting this up, the clamping torque can be increased, the driving force requirement of the cylinder can be reduced, and the size of the cylinder can be reduced, which can save costs and reduce the space occupied by the first driving member 410.

[0034] Reference Figures 1 to 3 In some embodiments of this utility model, the X-axis clamping assembly 200 includes a second driving member 210, a second clamping part 220, and a second positioning part 230. The second driving member 210 and the second positioning part 230 are spaced apart along the X-axis direction. The second clamping part 220 is pulsatorically connected to the second driving member 210, and the second driving member 210 can drive the second clamping part 220 to move toward the second positioning part 230. Specifically, the second driving member 210 can be a cylinder, and the second clamping part 220 is connected to the output rod of the cylinder. The second positioning part 230 can be a stop, and the stop can be arranged opposite to the second clamping part 220 along the X-axis direction. The cylinder can drive the second clamping part 220 to move toward the second positioning part 230, thereby clamping the workpiece 500 in the second positioning part 230. With the above structure, the workpiece 500 can be fixed in the X-axis direction, and the structure is simple, easy to manufacture, and has low installation cost.

[0035] Reference Figures 1 to 3In some embodiments of this utility model, the Y-axis clamping assembly 300 includes a third driving member 310, a third clamping part 320, and a third positioning part 330. The third driving member 310 and the third positioning part 330 are spaced apart along the Y-axis direction. The third clamping part 320 is connected to the third driving member 310 in a transmission manner. The third driving member 310 can drive the third clamping part 320 to move toward the third positioning part 330. Specifically, the third driving member 310 can be configured as a cylinder. The third clamping part 320 is connected to the comb rod of the cylinder. The third positioning part 330 can be a stop block. The stop block can be configured opposite to the third clamping part 320 along the Y-axis direction. The cylinder can drive the third clamping part 320 to move toward the third positioning part 330, thereby clamping the workpiece 500 in the third positioning part 330. Through the above structure, the workpiece 500 can be fixed in the Y-axis direction. Moreover, the structure is simple, easy to manufacture, and has low installation cost.

[0036] Reference Figure 2 and Figure 4 In some embodiments of this utility model, the base 100 is provided with a mounting hole 110, and the first driving member 410 is located below the base 100. The first driving member 410 is provided with an output rod, which can pass through the mounting hole 110 and connect to the pressure rod 430. Specifically, the first driving member 410 can be connected to the bottom of the base 100, and the first driving member 410 can be a cylinder. The cylinder shaft can pass through the mounting hole 110 and extend to the pressure rod 430, and pivotally connect to the pressure rod 430. The first driving member 410 can be arranged below the base 100, so as not to occupy the space above the base 100, which facilitates the operation of the machining tool and can avoid the collision between the tool and the first driving member 410, thereby reducing maintenance costs.

[0037] Reference Figures 1 to 4 In some embodiments of this utility model, the support base 420 includes a base 421 and a movable base 422. One end of the movable base 422 is rotatably connected to the base 421, and the other end is rotatably connected to the pressure rod 430. Specifically, the base 421 is fixedly connected to the base 100, and the movable base 422 is generally vertically arranged, with its lower end pivotally connected to the base 421 and its upper end pivotally connected to the pressure rod 430. The first driving member 410 can be configured as a cylinder, and its output shaft can move up and down. The output shaft is pivotally connected to the pressure rod 430. When the first driving member 410 drives the pressure rod 430 to rotate, the movable base 422 can swing relative to the base 421, thereby adapting to the movement of the output shaft of the first driving member 410, so that the pressure rod 430 can swing and press against the workpiece 500. Furthermore, the movable base 422 and the base 421 can stabilize the transmission structure, so that the pressure rod 430 can be stably subjected to force.

[0038] Reference Figure 5In some embodiments of this utility model, the second driving member 210 includes an independent dual-cylinder cylinder member, which includes a first cylinder driving part and a second cylinder driving part. The second clamping part 220 includes a first rod 221, a second rod 222, and a clamping block 223. The clamping block 223 has a waist-shaped first connecting hole 2231 and a second connecting hole 2232. One end of the first rod 221 is connected to the first cylinder driving part, and the other end is connected to the first connecting hole 2231 by a fastener. One end of the second rod 222 is connected to the second cylinder driving part, and the other end is connected to the second connecting hole 2232 by a fastener. Specifically, the independent dual-cylinder assembly can be equipped with independent first and second cylinder drive units. The first rod 221 is driven by the first cylinder drive unit, and the second rod 222 is driven by the second cylinder drive unit. The drive stroke can be controlled independently, so that the extension strokes of the first rod 221 and the second rod 222 are different. The clamping block 223 can be provided with elongated first connecting hole 2231 and second connecting hole 2232. During adjustment, the fasteners of the first rod 221 and the second rod 222 to the clamping component can be loosened first. After adjusting the length of the first rod 221 and the second rod 222, the clamping seat can be tilted at the corresponding angle. Then the fasteners can be tightened to complete the adjustment. When the irregular workpiece 500 has an inclined surface, the inclination of the clamping block 223 can be adjusted to adapt and abut against the inclined surface of the irregular workpiece 500. There is no need to customize the clamping block 223 separately, which can improve the versatility of the tooling.

[0039] In some embodiments of this utility model, the second clamping part 220 includes a first telescopic rod, a second telescopic rod, and a clamping block 223. Both the first telescopic rod and the second telescopic rod are capable of telescopically adjusting their length. The clamping block 223 has a waist-shaped first connecting hole 2231 and a second connecting hole 2232. One end of the first telescopic rod is connected to the second driving member 210, and the other end is connected to the first connecting hole 2231 by a fastener. One end of the second telescopic rod is connected to the second driving member 210, and the other end is connected to the second connecting hole 2232 by a fastener. Specifically, both the first and second telescopic rods can be extended and retracted to adjust their length. The telescopic structure can be a threaded structure with the rods at both ends connected by threads. Tightening can adjust the overall length. The telescopic structure is not limited to the above structure and can also be other structures, which will not be described in detail here. In actual adjustment, the fasteners of the first rod 221, the second rod 222 and the clamping member can be loosened first. By adjusting the length of the first and second telescopic rods, the clamping block 223 can be tilted at the corresponding angle. Then the fasteners can be tightened. When the irregular workpiece 500 has an inclined surface, the inclination of the clamping block 223 can be adjusted to match and abut against the inclined surface of the irregular workpiece 500. There is no need to customize the clamping block 223 separately, which can improve the versatility of the tooling.

[0040] Reference Figures 3 to 4In some embodiments of this utility model, the Z-axis clamping assembly 400 further includes a first positioning part 440, which is disposed on the top surface of the base 100. Specifically, the first positioning part 440 may be a support block, which may be detachably installed on the top surface of the base 100. The position of the support block may be set according to the shape of the workpiece 500 so that the support block can cooperate with the pressure rod 430 to fix the workpiece 500.

[0041] Reference Figures 2 to 4 In some embodiments of this utility model, the pressure rod 430 is provided with a detachable pressure block 431, which is located at the bottom of the pressure rod 430 and near the end of the pressure rod 430. Specifically, the pressure block 431 can be disassembled and replaced, so that the pressure block 431 can be adjusted and replaced according to the shape of the workpiece 500, thereby improving the versatility of the tooling.

[0042] In some embodiments of this utility model, the pressure block 431 is made of an elastic material. Specifically, the pressure block 431 can be made of elastic materials such as rubber or silicone, which can protect the workpiece 500 and prevent the workpiece 500 from being damaged by pressure.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A CNC machining fixture, characterized in that, include: Base (100); An X-axis clamping assembly (200) is disposed on the base (100), and the X-axis clamping assembly (200) is capable of clamping a workpiece (500) in the X-axis direction; A Y-axis clamping assembly (300) is disposed on the base (100), and the Y-axis clamping assembly (300) is capable of clamping the workpiece (500) in the Y-axis direction; The Z-axis clamping assembly (400) includes a first drive member (410), a support base (420), and a pressure rod (430). The first drive member (410) is disposed on the base (100), the support base (420) is disposed on the base (100), and the middle part of the pressure rod (430) is rotatably connected to the support base (420). One end of the pressure rod (430) is connected to the first drive member (410) and the other end extends above the workpiece (500). The first drive member (410) can drive the pressure rod (430) to rotate around the support base (420) and press it against the workpiece (500).

2. The CNC machining fixture according to claim 1, characterized in that, The X-axis clamping assembly (200) includes a second driving member (210), a second clamping part (220), and a second positioning part (230). The second driving member (210) and the second positioning part (230) are spaced apart along the X-axis direction. The second clamping part (220) is connected to the second driving member (210) in a transmission manner. The second driving member (210) can drive the second clamping part (220) to move toward the second positioning part (230).

3. The CNC machining fixture according to claim 1, characterized in that, The Y-axis clamping assembly (300) includes a third driving member (310), a third clamping part (320), and a third positioning part (330). The third driving member (310) and the third positioning part (330) are spaced apart along the Y-axis direction. The third clamping part (320) is connected to the third driving member (310) in a transmission manner. The third driving member (310) can drive the third clamping part (320) to move toward the third positioning part (330).

4. The CNC machining fixture according to claim 1, characterized in that, The base (100) is provided with a mounting hole (110), the first driving member (410) is located below the base (100), the first driving member (410) is provided with an output rod, and the output rod can pass through the mounting hole (110) and connect to the pressure rod (430).

5. The CNC machining fixture according to claim 1, characterized in that, The support base (420) includes a base (421) and a movable base (422). One end of the movable base (422) is rotatably connected to the base (421), and the other end is rotatably connected to the pressure rod (430).

6. A CNC machining fixture according to claim 2, characterized in that, The second driving component (210) includes an independent dual-cylinder cylinder component, which includes a first cylinder driving part and a second cylinder driving part. The second clamping part (220) includes a first rod (221), a second rod (222), and a clamping block (223). The clamping block (223) has a waist-shaped first connecting hole (2231) and a second connecting hole (2232). One end of the first rod (221) is connected to the first cylinder driving part, and the other end is connected to the first connecting hole (2231) by a fastener. One end of the second rod (222) is connected to the second cylinder driving part, and the other end is connected to the second connecting hole (2232) by a fastener.

7. A CNC machining fixture according to claim 2, characterized in that, The second clamping part (220) includes a first telescopic rod, a second telescopic rod, and a clamping block (223). Both the first telescopic rod and the second telescopic rod are telescopically adjustable in length. The clamping block (223) has a waist-shaped first connecting hole (2231) and a second connecting hole (2232). One end of the first telescopic rod is connected to the second driving member (210), and the other end is connected to the first connecting hole (2231) by a fastener. One end of the second telescopic rod is connected to the second driving member (210), and the other end is connected to the second connecting hole (2232) by a fastener.

8. A CNC machining fixture according to claim 1, characterized in that, The Z-axis clamping assembly (400) further includes a first positioning part (440), which is disposed on the top surface of the base (100).

9. A CNC machining fixture according to claim 1, characterized in that, The pressure rod (430) is provided with a detachable pressure block (431), which is located at the bottom of the pressure rod (430) and is disposed near the end of the pressure rod (430).

10. A CNC machining fixture according to claim 9, characterized in that, The pressure block (431) is made of an elastic material.

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