A four-axis machining fixture

Abstract

The utility model relates to processing fixture field discloses a four -axis processing fixture, including fixed plate, the front surface fixed connection of fixed plate has fixed platform, the outer wall of fixed platform is provided with the article groove, the front surface of fixed platform is provided with extrusion subassembly, the extrusion subassembly includes the slot, the slot sets up in the front surface of fixed platform, the inner wall of slot has and inserts the extrusion block, the inner wall of slot is connected with extrusion screw rod, the outer wall of extrusion screw rod is provided with fixed component, the front surface of extrusion block is provided with extrusion board, the rear surface fixed connection of extrusion board has the locating post, and the locating post inserts the front surface of extrusion block. In the utility model, through using fixed platform to support work piece, can make work piece multiple group upper surface to expose simultaneously, so can carry out processing to its multiple surface simultaneously, can reduce processing frequency, improve processing efficiency, and when processing, fixed platform can support work piece.

Description

Technical Field

[0001] This utility model relates to the field of machining fixtures, and in particular to a four-axis machining fixture. Background Technology

[0002] A four-axis machining center is a CNC machine that adds a rotary coordinate axis to the traditional three-axis machining center to achieve four-axis linkage machining. Through the coordinated movement of linear and rotary axes, it can complete the machining of complex curved surfaces, inclined structures, or multi-faceted surfaces that cannot be achieved by three-axis machining, significantly improving machining efficiency and accuracy.

[0003] In existing technologies, to ensure the stability of workpieces during machining, fixtures are used to fix them. Commonly, fixtures are used to clamp one end of the workpiece, allowing machining of the other end. However, some workpieces are bent with multiple bends, each requiring machining. If one end is clamped while the other is machined, multiple machining operations are needed, resulting in low efficiency. Furthermore, if the workpiece has a thin wall, the suspended end is prone to bending during machining. Therefore, a four-axis machining fixture is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a four-axis machining fixture, which aims to improve the problem in the prior art that "conventional fixtures can only clamp one end of the workpiece when clamping, so multiple processing steps are required when machining bent workpieces, resulting in low processing efficiency".

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a four-axis machining fixture, including a fixed plate, a fixed platform fixedly connected to the front surface of the fixed plate, a storage groove provided on the outer wall of the fixed platform, and a pressing component provided on the front surface of the fixed platform. The extrusion assembly includes a slot disposed on the front surface of the fixed platform. An extrusion block is inserted into the inner wall of the slot, and an extrusion screw is threadedly connected to the inner wall of the slot. A fixing assembly is disposed on the outer wall of the extrusion screw.

[0006] As a further description of the above technical solution: The front surface of the extrusion block is provided with an extrusion plate, and the rear surface of the extrusion plate is fixedly connected with a positioning post, which is inserted into the front surface of the extrusion block.

[0007] As a further description of the above technical solution: The outer wall of the positioning post is fitted with a gasket.

[0008] As a further description of the above technical solution: The fixing component includes a rotating shaft, which is rotatably connected to the outer wall of the extrusion screw, and a fixing block is rotatably connected to the outer wall of the rotating shaft.

[0009] As a further description of the above technical solution: The fixed block has a rounded corner at one end near the storage slot, and the maximum distance between the rotating shaft and the rear surface of the fixed block is less than the maximum distance between the rotating shaft and the upper surface of the fixed block.

[0010] As a further description of the above technical solution: The rear surface of the fixing plate is provided with a protrusion, and a connecting flange is sleeved on the outer wall of the protrusion.

[0011] As a further description of the above technical solution: The front surface of the fixing plate is provided with fixing holes in multiple sets, and the multiple sets of fixing holes are arranged in a rotating array with the center line of the protrusion as the rotation axis.

[0012] As a further description of the above technical solution: The storage slot is L-shaped, with its front and right ends penetrating the front and right surfaces of the fixed platform, respectively.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by using a fixed table to support the workpiece, multiple upper surfaces of the workpiece can be exposed simultaneously, so that multiple surfaces can be processed at the same time, which can reduce the number of processing times and improve processing efficiency. Furthermore, during processing, the fixed table can support the workpiece, so even if the wall thickness of the workpiece is thin at the bending part, it is not easy to bend and be damaged.

[0014] 2. In this utility model, by setting a fixing component, when it is necessary to fix the workpiece, the fixing block can be directly moved to squeeze the squeezing plate. When the squeezing plate is squeezed, it will squeeze the squeezing block through the gasket. When the squeezing block is squeezed, it will squeeze the workpiece and fix it inside the fixing hole. The whole device does not need to adjust the squeezing screw when unlocking and clamping, which is more convenient to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the present invention in its working state; Figure 2 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 3 This is a rear-view disassembled schematic diagram of the three-dimensional structure of the overall device in this utility model; Figure 4 This is a three-dimensional structural breakdown diagram of the extrusion component and the fixing component in this utility model; Figure 5This is a three-dimensional cross-sectional diagram of the extrusion assembly in this utility model. Figure 6 This is a schematic diagram of the three-dimensional structure in working state of Embodiment 2 of this utility model; Figure 7 This is a three-dimensional structural disassembly diagram of Embodiment 2 of this utility model; Figure 8 This is a three-dimensional structural disassembly diagram of Embodiment 3 of this utility model.

[0016] Legend: 1. Fixing plate; 11. Fixing hole; 12. Protrusion; 2. Fixing platform; 21. Storage slot; 3. Extrusion assembly; 31. Slot; 32. Extrusion block; 33. Gasket; 34. Extrusion plate; 35. Extrusion screw; 36. Positioning post; 4. Fixing assembly; 41. Rotating shaft; 42. Fixing block; 43. Rounded corner; 5. Connecting flange. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a four-axis machining fixture, including a fixing plate 1 for fixing the overall device. A fixing platform 2 for supporting the workpiece is fixedly connected to the front surface of the fixing plate 1. The outer wall of the fixing platform 2 is provided with a storage groove 21 for accommodating the workpiece. The fixing platform 2 not only provides a place to accommodate the workpiece, but also provides support for the workpiece, thus preventing the workpiece from bending during processing. The front surface of the fixing platform 2 is provided with a pressing component 3 for pressing the workpiece. The extrusion assembly 3 includes a slot 31 for receiving an extrusion block 32. The slot 31 is disposed on the front surface of the fixed platform 2. An extrusion block 32 for extruding a workpiece is inserted into the inner wall of the slot 31. The extrusion block 32 can slide back and forth on the inner wall of the slot 31. An extrusion screw 35 for guiding an extrusion screw 35 is threadedly connected to the inner wall of the slot 31. A fixing assembly 4 for pushing the extrusion block 32 is disposed on the outer wall of the extrusion screw 35.

[0019] Reference Figure 2 , Figure 4 and Figure 5The front surface of the extrusion block 32 is provided with an extrusion plate 34, and the rear surface of the extrusion plate 34 is fixedly connected with a positioning post 36 for guiding the movement of the extrusion plate 34. The positioning post 36 is inserted into the front surface of the extrusion block 32. Due to the restriction of the positioning post 36, the extrusion plate 34 can only move back and forth. The outer wall of the positioning post 36 is fitted with a gasket 33 for transmitting pressure.

[0020] Reference Figures 3-5 The fixing component 4 includes a rotating shaft 41 for supporting the entire fixing component 4. The rotating shaft 41 is rotatably connected to the outer wall of the extrusion screw 35. A fixing block 42 for extruding the extrusion plate 34 is rotatably connected to the outer wall of the rotating shaft 41. The end of the fixing block 42 near the storage slot 21 is provided with a rounded corner 43. The operator can rotate the fixing block 42 with the help of the rounded corner 43. The maximum distance between the rotating shaft 41 and the rear surface of the fixing block 42 is less than the maximum distance between the rotating shaft 41 and the upper surface of the fixing block 42. When the fixing block 42 is rotated to a vertical position, it will attempt to pull the rotating shaft 41 away from the extrusion plate 34. However, the rotating shaft 41 itself will be restricted by the extrusion screw 35 and cannot move outward. Thus, when the fixing block 42 rotates, it will extrude the extrusion plate 34, forcing it to move towards the extrusion plate 32. The rear surface of the fixed plate 1 is provided with a protrusion 12 for determining the installation position of the fixed plate 1. The outer wall of the protrusion 12 is fitted with a connecting flange 5. The front surface of the fixed plate 1 is provided with multiple sets of fixing holes 11. The multiple sets of fixing holes 11 are arranged in a rotating array with the center line of the protrusion 12 as the rotation axis. The connecting flange 5 is directly installed at the end of the rotary machining axis of the four-axis machining center. During machining, the connecting flange 5 can be rotated by the rotary axis of the four-axis machining center, so that the entire device and the workpiece can be rotated synchronously. By rotating the workpiece, different surfaces of it can be machined. The placement groove 21 is set in L shape. The front end and the right end of the placement groove 21 penetrate the front surface and the right surface of the fixed plate 2, respectively. With this setting, when installing the workpiece, the workpiece can be pushed into the interior of the placement groove 21 from right to left. Example

[0021] Reference Figure 1 , Figure 5 and Figure 6 The difference between Embodiment 2 and Embodiment 1 in this utility model is that in Embodiment 1, the storage slot 21 is set above the fixed platform 2, while in Embodiment 2, the storage slot 21 is set below the fixed platform 2. With this setting, when processing the workpiece that needs to be processed on the back, the device in Embodiment 2 can be selected to fix the workpiece. Example

[0022] Reference Figure 1 , Figure 4 and Figure 8In this utility model, the difference between Embodiment 3 and Embodiment 1 is that Embodiment 3 does not include the extrusion plate 34, the gasket 33 and the fixing component 4. Instead, the extrusion block 32 is directly fixed by the extrusion screw 35. This arrangement is more cumbersome when clamping, but it can provide more stable clamping when clamping large workpieces or workpieces that vibrate greatly during processing.

[0023] Working principle: During processing, the workpiece needs to be placed in the L-shaped storage slot 21 of the fixed table 2. The workpiece is positioned by the slot wall and the fixed table 2 supports the workpiece to prevent deformation during processing. Then, the fixed block 42 can be rotated. When the fixed block 42 rotates, it will squeeze the extrusion plate 34. The extrusion plate 34 will push the pad 33 to move the extrusion block 32 backward and press the workpiece tightly in the storage slot 21. With this operation, there is no need to adjust the screw when clamping, which is more convenient during operation.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A four-axis machining fixture, comprising a fixing plate (1), characterized in that: The front surface of the fixed plate (1) is fixedly connected to a fixed platform (2), the outer wall of the fixed platform (2) is provided with a storage groove (21), and the front surface of the fixed platform (2) is provided with a pressing component (3). The extrusion assembly (3) includes a slot (31) which is disposed on the front surface of the fixed platform (2). An extrusion block (32) is inserted into the inner wall of the slot (31). An extrusion screw (35) is threadedly connected to the inner wall of the slot (31). A fixing assembly (4) is disposed on the outer wall of the extrusion screw (35).

2. A four-axis machining fixture according to claim 1, characterized in that: The front surface of the extrusion block (32) is provided with an extrusion plate (34), and the rear surface of the extrusion plate (34) is fixedly connected with a positioning post (36), which is inserted into the front surface of the extrusion block (32).

3. A four-axis machining fixture according to claim 2, characterized in that: The outer wall of the positioning post (36) is fitted with a gasket (33).

4. A four-axis machining fixture according to claim 1, characterized in that: The fixing component (4) includes a rotating shaft (41) which is rotatably connected to the outer wall of the extrusion screw (35), and a fixing block (42) is rotatably connected to the outer wall of the rotating shaft (41).

5. A four-axis machining fixture according to claim 4, characterized in that: The fixed block (42) has a rounded corner (43) at one end near the storage slot (21), and the maximum distance between the rotating shaft (41) and the rear surface of the fixed block (42) is less than the maximum distance between the rotating shaft (41) and the upper surface of the fixed block (42).

6. A four-axis machining fixture according to claim 1, characterized in that: The rear surface of the fixing plate (1) is provided with a protrusion (12), and the outer wall of the protrusion (12) is fitted with a connecting flange (5).

7. A four-axis machining fixture according to claim 6, characterized in that: The front surface of the fixing plate (1) is provided with fixing holes (11) in multiple sets, and the multiple sets of fixing holes (11) are arranged in a rotating array with the center line of the protrusion (12) as the rotation axis.

8. A four-axis machining fixture according to claim 1, characterized in that: The storage slot (21) is L-shaped, and the front end and right end of the storage slot (21) penetrate the front surface and right surface of the fixed platform (2), respectively.

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