A dual four-axis rail controlled fixture for multi-type material processing

Abstract

The utility model discloses a kind of double four-axis rail control clamps for multiple types of material processing, including fixed seat and horizontal moving device, first rotating device is installed on the fixed seat, the mobile end of horizontal moving device is connected with second rotating device, and second rotating device is pushed by horizontal moving device to approach or away from first rotating device;The relative position of first rotating device and second rotating device is detachably installed with first clamp and second clamp, the clamp of the utility model has multiple use modes for user to select, wherein first rotating device and second rotating device are independent of each other, can realize the one-time processing of small workpiece, and according to situation differential rotation adjusts angle, large workpiece can also be commonly driven synchronous rotation, avoid appearing torque difference and deformation, improve the versatility and processing flexibility of device.

Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically a double four-axis linear guide control fixture for machining various types of materials. Background Technology

[0002] In precision machining fields such as semiconductors, electronic housings, and aluminum profile housings, the versatility, clamping force, and accuracy of fixtures are crucial. Currently, load-bearing machining fixtures can only hold one type of workpiece at a time, resulting in poor expandability. Furthermore, existing fixtures often suffer from the following problems: insufficient clamping force, making them only suitable for laser processing; and traditional fixtures are prone to workpiece displacement and vibration during processing, affecting machining accuracy, especially in the machining of thin-walled profiles. Utility Model Content

[0003] The purpose of this invention is to provide a dual four-axis linear guide control fixture for processing various types of materials, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A dual four-axis linear guide control fixture for processing various types of materials includes a fixed base and a transverse movement device. A first rotating device is mounted on the fixed base, and a second rotating device is connected to the moving end of the transverse movement device. The transverse movement device pushes the second rotating device closer to or away from the first rotating device.

[0006] The first and second rotating devices are detachably mounted with the first clamp and the second clamp at their relative positions.

[0007] In a further technical solution, the first fixture and the second fixture are two tooling plates arranged opposite to each other, and an "L"-shaped edge limiting structure is formed between the two tooling plates.

[0008] A further technical solution is that an "L"-shaped edge limiting structure is formed on the lower edge and rear edge of the two tooling plates and is composed of several cylinders. Each cylinder has a stop block at its output end. The stop block can extend between the two tooling plates or at least retract to a position flush with the tooling plates.

[0009] A further technical solution is that the two tooling plates are provided with air passages for supplying air to the cylinder.

[0010] In a further technical solution, the tooling plate has five lateral cylinders and two bottom cylinders.

[0011] A further technical solution is that the tooling plate has densely spaced angled anti-slip textures on the opposite side.

[0012] In a further technical solution, the transverse movement device includes a servo motor, the output end of which is connected to a lead screw pair, the moving end of which is connected to a slide block, the slide block being slidably connected to a fixed seat, and an accordion-style protective cover located above the lead screw pair.

[0013] In a further technical solution, the servo motor incorporates an angle encoder and a torque sensor.

[0014] The beneficial effects of this utility model are:

[0015] The fixture described in this utility model has multiple usage modes for users to choose from. The first rotating device and the second rotating device are independent of each other, which can realize one-time processing of small workpieces and adjust the angle by differential rotation as needed. They can also drive large workpieces to rotate synchronously, avoiding deformation due to torque difference and improving the versatility and processing flexibility of the device.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 The three-dimensional structure of this utility model Figure 1 .

[0018] Figure 2 The three-dimensional structure of this utility model Figure 2 .

[0019] Figure 3 : A diagram of the edge-limiting structure of this utility model.

[0020] Figure 4 : Structural diagram of the transverse movement device of this utility model.

[0021] Reference numerals in the attached drawings: 1-fixed base, 2-transverse movement device, 21-servo motor, 22-lead screw pair, 23-slide block, 24-accordion protective cover, 3-first rotating device, 4-second rotating device, 5-first clamp, 6-second clamp, 7-edge limiting structure, 71-cylinder, 72-stop block, 73-air passage, 8-tooling plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please refer to Figure 1-4 ;

[0024] This utility model proposes a fixture-assisted machining method, specifically including a fixed base 1 and a transverse movement device 2. A first rotating device 3 is installed on the fixed base 1, and a second rotating device 4 is connected to the moving end of the transverse movement device 2. A first clamp 5 and a second clamp 6 are detachably installed at the relative positions of the first rotating device 3 and the second rotating device 4. In this embodiment, the first clamp 5 and the second clamp 6 are connected in two independent devices, that is, they can operate independently. The detachable connection structure allows for the replacement of different clamps according to the parts to be processed. The structure of the clamp is not limited here and can be arbitrary, such as a jaw chuck, a T-slot clamp, etc., specifically referring to the clamp structures commonly used in the prior art.

[0025] Example 1;

[0026] When the workpiece to be processed is small, an independent fixing method can be used, that is, the first fixture 5 and the second fixture 6 fix the workpiece respectively. Since the position of the first rotating device 3 is fixed, the second rotating device 4 is adjusted by the transverse moving device 2. During the processing, the first rotating device 3 and the second rotating device 4 drive the workpiece to rotate at different angles respectively, so as to realize continuous processing of the workpiece at multiple angles. At the same time, since the fixtures are detachable and replaceable, they can be adapted to small workpieces of different shapes and sizes, improving the versatility and processing flexibility of the device. Of course, the first rotating device 3 and the second rotating device 4 can rotate at different speeds.

[0027] Example 2;

[0028] When one of the workpieces needs to be dynamically adjusted, the workpiece is fixed on the second fixture 6. At this time, the transverse movement device 2, the second rotation device 4 and the machine tool machining axis realize 5-axis or 5+1-axis machining in linkage, further improving flexibility.

[0029] Example 3;

[0030] When the workpiece to be processed is large, and a single fixture cannot fix it, the first fixture 5 and the second fixture 6 are replaced with two tooling plates 8. First, the workpiece is placed between the two tooling plates 8, and then the second rotating device 4 is driven to move closer to the first rotating device 3 through the transverse moving device 2, so that the two tooling plates 8 clamp the two ends of the workpiece.

[0031] It should be noted that the power source of the transverse movement device 2 is usually a combination of servo motor 21 and lead screw pair 22. It is important to avoid the two tooling plates 8 crushing the workpiece and to provide sufficient clamping force. For this purpose, servo motor 21 has a built-in angle encoder and torque sensor. Since the core of constant torque is constant current, the torque sensor can be replaced with a current indirect measurement method. During operation, the current is kept constant output, and the encoder detects that servo motor 21 is rotating normally. After reaching a certain position, it clamps the workpiece, and the current is still kept constant output. However, if the encoder detects that servo motor 21 is not rotating, the workpiece has been clamped. This state should be maintained until the end of processing. If the encoder detects a sudden change in the speed of servo motor 21 during processing, the workpiece will fall off or become loose. At this time, an alarm will be triggered and the operation will stop.

[0032] During the processing, the workpiece needs to change different positions, and the first rotating device 3 and the second rotating device 4 rotate synchronously, so that the workpiece can rotate in the same direction. Since both the first rotating device 3 and the second rotating device 4 have power, there will be no torque difference between the two ends of the workpiece. This is especially important for processing thinner shells, to avoid deformation caused by the torque difference between the two ends during the rotation angle.

[0033] Test results show that when the workpiece parallelism is ≤0.05mm, the clamping deformation is ≤0.03mm, and the machining accuracy can reach ±0.1mm, meeting the requirements of high-precision machining.

[0034] It should be noted that the first rotating device 3 and the second rotating device 4 have the same structure and can achieve four-axis rotation by using a four-axis indexing plate and motor drive.

[0035] The fixture described in this utility model has multiple usage modes for users to choose from. The first rotating device 3 and the second rotating device 4 are independent of each other, which can realize one-time processing of small workpieces and adjust the angle by differential rotation as needed. They can also drive large workpieces to rotate synchronously together, avoiding deformation due to torque difference and improving the versatility and processing flexibility of the device.

[0036] This embodiment is a further explanation of Embodiment 3. The first fixture 5 and the second fixture 6 are two tooling plates 8 arranged opposite each other. Since the direction and angle of the fixation of a large workpiece are uncertain when it is fixed by clamping, it is difficult for the processing equipment to find a reference. Therefore, an "L"-shaped edge limiting structure 7 is formed between the two tooling plates 8. For example, when processing a shell, the two sides are close to the edge limiting structure 7, thereby determining the initial fixed state of the shell.

[0037] There are many ways to construct an "L"-shaped edge limiting structure, such as two limiting strips set at the two edges. Although this structure can achieve fixation, it will block the edge of the workpiece, making it impossible to process. Therefore, a stretchable structure is proposed.

[0038] More specifically, the tooling plate 8 is quadrilateral, and the "L"-shaped edge limiting structure 7 is formed on the lower edge and rear edge of the two tooling plates 8, and is composed of several cylinders 71. Each of the output ends of the cylinders 71 is equipped with a stop block 72. When a workpiece needs to be placed, the cylinders 71 move simultaneously to push the stop blocks 72 to extend between the two tooling plates 8. The "L"-shaped edge limiting structure 7 is formed on both tooling plates 8. After the workpiece is fixed, the reference of the workpiece is determined. Then the cylinders 71 drive the stop blocks 72 to retract at least to the position flush with the tooling plate 8, or to the rear side of the end face of the tooling plate 8, so as not to block the edge of the workpiece and to complete the processing smoothly.

[0039] It should be noted that it is also possible to install only one cylinder 71 on the lower and rear sides of each tooling plate 8. The cylinder 71 has a longer side wall, which is an equivalent replacement and can achieve the same technical effect.

[0040] Preferably, since there are many cylinders 71 installed, it would be very inconvenient to install air pipes, which may interfere with the processing. Therefore, air passages 73 are provided in the two tooling plates 8 to supply air to the cylinders 71. Only one air inlet is needed, while the air outlet is formed at the edge position and directly connected to the cylinder 71, without the need to install air pipes.

[0041] Preferably, the tooling plate 8 has five lateral cylinders 71 and two bottom cylinders 71, which is suitable for processing large housings.

[0042] In addition, to prevent the workpiece from slipping during processing, this embodiment has dense angled tooth anti-slip texture (not shown) on the opposite side of the tooling plate 8.

[0043] One embodiment of the present invention relates to a transverse movement device 2, specifically including a servo motor 21, the output end of which is connected to a lead screw assembly 22 for transmission. A bearing seat is provided on the fixed base 1 to facilitate the installation of the lead screw assembly 22. The moving end of the lead screw assembly 22 is connected to a slide 23, which is slidably connected to the fixed base 1. A second rotating device 4 is installed on the slide 23. An accordion protective cover 24 is provided above the lead screw assembly 22. Preferably, the sliding structure between the slide 23 and the fixed base 1 forms a groove in which the lead screw assembly 22 is placed, and the accordion protective cover 24 completely covers the groove to prevent debris from falling into the lead screw assembly 22.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual four-axis linear guide control fixture for machining multiple types of materials, characterized in that: It includes a fixed base (1) and a transverse moving device (2). A first rotating device (3) is installed on the fixed base (1). A second rotating device (4) is connected to the moving end of the transverse moving device (2). The transverse moving device (2) pushes the second rotating device (4) closer to or away from the first rotating device (3). The first clamp (5) and the second clamp (6) are detachably mounted on the relative positions of the first rotating device (3) and the second rotating device (4).

2. The dual four-axis linear guide control fixture for machining multiple types of materials according to claim 1, characterized in that: The first fixture (5) and the second fixture (6) are two tooling plates (8) arranged opposite to each other, and an "L"-shaped edge limiting structure (7) is formed between the two tooling plates (8).

3. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 2, characterized in that: The "L"-shaped edge limiting structure (7) is formed on the lower edge and rear edge of the two tooling plates (8) and is composed of several cylinders (71). The output end of each of the several cylinders (71) is provided with a stop block (72). The stop block (72) can extend between the two tooling plates (8) or at least retract to a position flush with the tooling plates (8).

4. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 3, characterized in that: The two tooling plates (8) are provided with air passages (73) for supplying air to the cylinder (71).

5. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 3, characterized in that: The tooling plate (8) has five lateral cylinders (71) on the upper side and two bottom cylinders (71).

6. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 2, characterized in that: The tooling plate (8) has dense angled tooth anti-slip texture on the opposite side.

7. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 1, characterized in that: The transverse movement device (2) includes a servo motor (21), the output end of which is connected to a lead screw pair (22) for transmission. The moving end of the lead screw pair (22) is connected to a slide (23), which is slidably connected to a fixed seat (1). An accordion cover (24) is provided above the lead screw pair (22).

8. A dual four-axis linear guide control fixture for machining multiple types of materials according to claim 7, characterized in that: The servo motor (21) has a built-in angle encoder and torque sensor.

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