A clamping device and clamping method for box-shaped part machining

Abstract

The application relates to a clamping device for box body part machining, which comprises a mounting base, a fixed positioning group, a movable positioning group and a driving mechanism; a supporting cover plate is fixedly connected to the mounting base, and the upper surface of the supporting cover plate is used for placing workpieces; the fixed positioning group comprises at least two fixed positioning seats; the movable positioning group comprises at least two movable positioning seats; the fixed positioning seats and the movable positioning seats are arranged in a circle around the supporting cover plate; each movable positioning seat is in sliding fit with the mounting base, and the sliding direction is towards the workpieces placed on the supporting cover plate; the driving mechanism comprises a driving part and a linkage part; the driving part is drivingly connected with each movable positioning seat through the linkage part. The application also relates to a clamping method. The scheme can solve the problems of the existing box body part clamping device, such as non-uniform positioning reference, poor clamping synchronicity and low clamping efficiency.

Description

Technical Field

[0001] This invention relates to the field of equipment tooling technology, and in particular to a clamping device and clamping method for machining box-type parts. Background Technology

[0002] In the machining of box-type parts, the accuracy and stability of the clamping and positioning directly affect the machining precision and efficiency of the parts.

[0003] Existing clamping devices for box-type parts mostly adopt single-direction clamping or multi-direction step-by-step clamping methods, which have problems such as inconsistent positioning references, poor clamping synchronization, and low clamping efficiency. This can easily lead to displacement and deformation of parts during processing, thus affecting the processing quality. At the same time, the positioning seats of existing devices are mostly rigid contacts, which can easily cause scratches on the surface of the parts. Moreover, the clamping process is cumbersome and has poor adaptability, making it difficult to meet the rapid clamping needs of box-type parts of different specifications. Summary of the Invention

[0004] Therefore, it is necessary to provide a clamping device and clamping method for machining box-type parts, addressing the problems of inconsistent positioning references, poor clamping synchronization, and low clamping efficiency in existing clamping devices for box-type parts.

[0005] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention disclose a clamping device for processing box-type parts, comprising a mounting base, a fixed positioning group, a movable positioning group, and a driving mechanism; a support cover plate is fixedly connected to the mounting base, and the upper surface of the support cover plate is used to place a workpiece; the fixed positioning group includes at least two fixed positioning seats, and the movable positioning group includes at least two movable positioning seats, the fixed positioning seats and the movable positioning seats being arranged in a circle around the support cover plate; each of the movable positioning seats is slidably engaged with the mounting base, and the sliding direction is towards the workpiece placed on the support cover plate; the driving mechanism includes a driving part and a linkage part, and the driving part is drivenly connected to each of the movable positioning seats through the linkage part.

[0006] In one embodiment, the fixed positioning group includes a left fixed positioning seat and a rear fixed positioning seat, the positioning surface of the left fixed positioning seat is perpendicular to the positioning surface of the rear fixed positioning seat, and the movable positioning group includes a right movable positioning seat and a front movable positioning seat, the positioning surface of the right movable positioning seat is perpendicular to the positioning surface of the front movable positioning seat.

[0007] In one embodiment, the linkage unit includes a first linkage unit, a second linkage unit, and a transfer unit. One end of the first linkage unit is connected to each of the right-side movable positioning seats, and the other end of the first linkage unit is rotatably connected to one end of the transfer unit. One end of the second linkage unit is rotatably connected to the other end of the transfer unit, and the other end of the second linkage unit is connected to the front-side movable positioning seat. The driving unit is connected to the first linkage unit, and the driving unit simultaneously drives the right-side movable positioning seat and the front-side movable positioning seat to move through the first linkage unit and the second linkage unit.

[0008] In one embodiment, the mounting base is provided with a vertical guide rail and a horizontal guide rail. The vertical guide rail is slidably engaged with the right movable positioning seat, and the horizontal guide rail is slidably connected to the front movable positioning seat. The vertical guide rail and the horizontal guide rail are arranged perpendicular to each other.

[0009] In one embodiment, both the fixed positioning seat and the movable positioning seat are provided with protective pads on the side facing the workpiece.

[0010] In one embodiment, the driving unit is a hydraulic power drive assembly, which includes a hydraulic cylinder, a hydraulic pump station, and a control valve; the hydraulic cylinder is fixedly connected to the mounting base, and the output end of the hydraulic cylinder is connected to the linkage unit; the control valve is connected in series on the hydraulic pipeline between the hydraulic pump station and the hydraulic cylinder.

[0011] In one embodiment, the upper surface of the support cover is provided with anti-slip texture or wear-resistant coating.

[0012] In one embodiment, the support cover is mounted on the mounting base by a support member, and the support cover and the mounting base form a movable space for the linkage.

[0013] Secondly, embodiments of the present invention disclose a clamping method based on the clamping device for machining box-type parts, comprising: Place the box-shaped parts on the support cover plate so that the box-shaped parts fit into each of the fixed positioning seats in the fixed positioning group to complete the reference positioning; When the drive mechanism is activated, the drive unit drives each of the movable positioning seats to move simultaneously via the linkage unit. Each of the movable positioning seats moves toward the workpiece simultaneously until the clamping surface of each movable positioning seat is in close contact with the corresponding side of the box-type part, thereby achieving multi-directional synchronous clamping.

[0014] The technical solution adopted in this invention can achieve the following beneficial effects: In the clamping device for processing box-type parts disclosed in this invention, a fixed positioning group and a movable positioning group are arranged in a closed loop around a supporting cover plate. Combined with the synchronous driving action of the driving mechanism, multi-directional synchronous positioning and clamping of box-type parts are achieved, ensuring that the parts are accurately positioned and evenly stressed after clamping, avoiding displacement and deformation of the parts during processing, and significantly improving the processing accuracy of the parts. At the same time, the movable positioning seats slide with the mounting base, and the driving mechanism drives all movable positioning seats to move synchronously through the linkage, simplifying the clamping operation process, shortening the clamping time, improving the clamping efficiency, and adapting to the clamping requirements of box-type parts of different specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the mounting device for machining box-type parts disclosed in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the clamping device for processing box-type parts disclosed in an embodiment of the present invention; Figure 3 for Figure 1 Exploded view during the assembly process.

[0016] Explanation of reference numerals in the attached figures: 100-Mounting base, 110-Support cover plate, 200-Workpiece, 310-Left side fixed positioning seat, 320-Rear side fixed positioning seat, 330-Right side movable positioning seat, 340-Front side movable positioning seat, 510-Drive unit, 610-Linkage unit, 611-First linkage unit, 612-Second linkage unit, 613-Transfer unit. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0018] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figures 1-3 As shown in the figure, an embodiment of the present invention discloses a clamping device for processing box-type parts. The disclosed clamping device for processing box-type parts includes a mounting base 100, a fixed positioning group, a movable positioning group, and a driving mechanism.

[0021] The mounting base 100 serves as the foundation for the entire clamping device, supporting all its components. It can be made of high-strength cast iron or alloy steel, possessing sufficient structural strength and rigidity to withstand vibrations and clamping forces generated during processing, preventing deformation that could affect clamping accuracy. A support cover plate 110 is fixedly attached above the mounting base 100. The support cover plate 110 can be bolted or welded to the mounting base 100, ensuring a secure and reliable connection. The upper surface of the support cover plate 110 is used to place the workpiece 200 to be processed, providing a stable support surface and ensuring the workpiece does not tilt after placement.

[0022] The fixed positioning group provides a reference positioning for the workpiece and includes at least two fixed positioning seats. The movable positioning group works in conjunction with the fixed positioning group to achieve multi-directional clamping of the workpiece and includes at least two movable positioning seats. The fixed positioning seats and movable positioning seats are evenly arranged in a circle around the support cover plate 110, which can limit and clamp the workpiece from multiple directions, ensuring the accuracy of workpiece positioning and the stability of clamping. Each movable positioning seat is connected to the mounting base 100 by a sliding fit, with the sliding direction facing the workpiece 200 placed on the support cover plate 110, ensuring that the movable positioning seat can move towards the workpiece 200 to achieve clamping of the workpiece 200.

[0023] The drive mechanism serves as the power source for the movable positioning seats, driving each movable positioning seat to move synchronously. It includes a drive unit 510 and a linkage unit 610. The drive unit 510 is connected to each movable positioning seat via the linkage unit 610. The drive unit 510 provides power, and the linkage unit 610 transmits the power from the drive unit to each movable positioning seat, ensuring that all movable positioning seats can move synchronously.

[0024] In the specific work process, firstly, the operator places the box-shaped workpiece 200 to be processed stably on the upper surface of the support cover plate 110. During the placement process, the position of the part is adjusted so that the corresponding side of the part is tightly fitted with each fixed positioning seat in the fixed positioning group. The fixed positioning seats achieve the reference positioning of the part, determine the processing reference position of the part, and avoid reference deviation during subsequent processing. After the reference positioning is completed, the drive mechanism is started. The drive unit 510 drives each movable positioning seat through the linkage unit 610. Due to the synchronous transmission effect of the linkage unit 610, each movable positioning seat will move along the preset sliding path. The movable positioning seat moves in the same direction towards the workpiece 200 on the support cover plate 110 until the clamping surface of each movable positioning seat is tightly fitted with the corresponding side of the box-shaped workpiece 200 and the clamping force reaches the preset requirement. At this time, the drive mechanism stops working, and the multi-directional synchronous clamping of the box-shaped workpiece 200 is completed. The clamping process is over, and the part can enter the subsequent processing process. After the processing is completed, the drive mechanism is started in reverse. The drive unit 510 drives each movable positioning seat to move in reverse through the linkage unit 610, disengaging from the workpiece 200. The operator can then take out the processed part, completing the entire processing and clamping process.

[0025] As can be seen from the above, in the clamping device for processing box-type parts disclosed in this embodiment of the invention, the fixed positioning group and the movable positioning group are arranged in a closed loop around the support cover plate 110. Combined with the synchronous driving action of the driving mechanism, the multi-directional synchronous positioning and clamping of the box-type parts are realized, ensuring that the position of the parts is accurate and the force is uniform after clamping, avoiding displacement and deformation of the parts during processing, and significantly improving the processing accuracy of the parts. At the same time, the movable positioning seat and the mounting base 100 slide together, and the driving mechanism drives all the movable positioning seats to move synchronously through the linkage part 610, which simplifies the clamping operation process, shortens the clamping time, improves the clamping efficiency, and adapts to the clamping requirements of box-type parts of different specifications.

[0026] In this embodiment of the invention, the fixed positioning group may include a left fixed positioning seat 310 and a rear fixed positioning seat 320, with the positioning surface of the left fixed positioning seat 310 perpendicular to the positioning surface of the rear fixed positioning seat 320. The movable positioning group includes a right movable positioning seat 330 and a front movable positioning seat 340, with the positioning surface of the right movable positioning seat 330 perpendicular to the positioning surface of the front movable positioning seat 340. By setting the positioning surfaces of the two fixed positioning seats in the fixed positioning group to be perpendicular to each other, and the positioning surfaces of the two movable positioning seats in the movable positioning group to be perpendicular to each other, they can accurately fit against the two adjacent vertical sides of the workpiece 200, forming a right-angle reference positioning, further improving the accuracy of part positioning. Simultaneously, the perpendicular clamping directions can simultaneously clamp the part from the horizontal and vertical directions, ensuring uniform force on the part and preventing deformation due to uneven clamping force. This is suitable for most box-type parts with right-angled sides.

[0027] Furthermore, the linkage unit 610 may include a first linkage unit 611, a second linkage unit 612, and a transfer unit 613. One end of the first linkage unit 611 is connected to each of the right-side movable positioning seats 330, and the other end of the first linkage unit 611 is rotatably connected to one end of the transfer unit 613. One end of the second linkage unit 612 is rotatably connected to the other end of the transfer unit 613, and the other end of the second linkage unit 612 is connected to the front movable positioning seat 340. The driving unit 510 is connected to the first linkage unit 611, and the driving unit 510 simultaneously drives the right-side movable positioning seat 330 and the front movable positioning seat 340 to move through the first linkage unit 611 and the second linkage unit 612.

[0028] In the above situation, the synchronous transmission of power of the drive unit is realized through the first linkage unit 611, the second linkage unit 612 and the transfer unit 613. Only one drive unit is needed to drive the movable positioning seats on the right and front sides to move synchronously, which simplifies the structure of the drive mechanism and reduces the manufacturing cost of the device. At the same time, the linkage unit and the transfer unit adopt a rotating connection, which can flexibly adapt to different sliding directions of the movable positioning seats, reduce jamming and wear during the transmission process, improve the transmission stability and service life of the linkage mechanism, and ensure the synchronous movement accuracy of the movable positioning seats.

[0029] In an optional embodiment, the mounting base 100 may be provided with a vertical guide rail and a horizontal guide rail. The vertical guide rail is slidably engaged with the right movable positioning seat 330, and the horizontal guide rail is slidably connected to the front movable positioning seat 340. The vertical guide rail and the horizontal guide rail are arranged perpendicularly to each other. This method, by providing mutually perpendicular vertical and horizontal guide rails on the mounting base 110, which are slidably engaged with the right and front movable positioning seats respectively, can precisely limit the movement direction of the movable positioning seat, avoid deviation during the movement of the movable positioning seat, and ensure that the movable positioning seat can move precisely toward the workpiece 200 along the preset direction, further improving the clamping accuracy. At the same time, the sliding engagement between the guide rail and the movable positioning seat can reduce the friction during the movement, making the movement of the movable positioning seat smoother and reducing the power loss of the drive mechanism.

[0030] Optionally, protective pads can be provided on the side of both the fixed positioning seat and the movable positioning seat facing the placed workpiece 200. The protective pads can be made of flexible materials such as rubber or polyurethane, which can effectively buffer the clamping force between the positioning seat and the workpiece 200, avoid scratches, indentations and other damage to the workpiece surface caused by rigid contact, and protect the surface quality of the workpiece; at the same time, the protective pads have a certain degree of elasticity and friction, which can increase the friction between the positioning seat and the workpiece, further improve the stability of positioning and clamping, and prevent the workpiece from slipping during processing.

[0031] In the embodiments disclosed in this invention, the drive unit 510 can be a hydraulic power drive assembly, which includes a hydraulic cylinder, a hydraulic pump station, and a control valve. The hydraulic cylinder is fixedly connected to the mounting base 100, and its output end is connected to the linkage unit 610. The control valve is connected in series in the hydraulic pipeline between the hydraulic pump station and the hydraulic cylinder. Hydraulic drive has the advantages of high power, stable clamping force, and convenient adjustment, providing sufficient clamping force for the movable positioning seat, adapting to box-type parts of different thicknesses and materials, and ensuring firm and reliable clamping.

[0032] Optionally, the upper surface of the support cover 110 may be provided with anti-slip texture or wear-resistant coating. The anti-slip texture increases the friction between the support cover 110 and the workpiece 200, preventing the workpiece 200 from sliding after placement, further improving the stability of the workpiece 200's positioning, and avoiding reference positioning offset. Furthermore, the support cover 110 can be mounted on the mounting base 100 via a support member, and the support cover 110 and the mounting base 100 form a moving space for the linkage 610. In this case, the moving space formed between the two provides sufficient range of motion for the linkage 610, avoids interference between the support cover 110 and the linkage 610, ensures that the linkage 610 can smoothly transmit power and drive the movable positioning seat to move synchronously; at the same time, the support member can provide stable support for the support cover 110, ensuring the flatness and stability of the support cover.

[0033] Based on the clamping device for machining box-type parts disclosed in the embodiments of the present invention, the embodiments of the present invention also disclose a clamping method based on the clamping device for machining box-type parts, the common clamping method specifically including the following steps: The box-shaped part is placed on the support cover plate 110, so that the box-shaped part is in contact with each fixed positioning seat in the fixed positioning group to complete the benchmark positioning. The drive mechanism is activated, and the drive unit 510 drives each movable positioning seat to move simultaneously through the linkage unit 610. Each movable positioning seat moves towards the workpiece 200 at the same time until the clamping surface of each movable positioning seat is in close contact with the corresponding side of the box-shaped part, realizing multi-directional synchronous clamping. This clamping method is simple and convenient to operate, without complicated operation procedures. It can quickly complete the benchmark positioning and multi-directional synchronous clamping of the workpiece, effectively shortening the clamping time and improving the clamping efficiency. At the same time, it ensures accurate positioning and stable clamping, avoids workpiece displacement or damage during the clamping process, adapts to the clamping requirements of box-shaped parts of different specifications, reduces the operation difficulty for operators, and helps to improve the overall processing efficiency.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A clamping device for machining box-type parts, characterized in that, The system includes a mounting base (100), a fixed positioning group, a movable positioning group, and a drive mechanism. A support cover plate (110) is fixedly connected to the mounting base (100), and the upper surface of the support cover plate (110) is used to place a workpiece (200). The fixed positioning group includes at least two fixed positioning seats, and the movable positioning group includes at least two movable positioning seats. The fixed positioning seats and the movable positioning seats are arranged in a circle around the support cover plate (110). Each movable positioning seat is slidably engaged with the mounting base (100), and the sliding direction is towards the workpiece (200) placed on the support cover plate (110). The drive mechanism includes a drive part (510) and a linkage part (610). The drive part (510) is drivenly connected to each of the movable positioning seats through the linkage part (610).

2. The clamping device for machining box-type parts according to claim 1, characterized in that, The fixed positioning group includes a left fixed positioning seat (310) and a rear fixed positioning seat (320), the positioning surface of the left fixed positioning seat (310) is perpendicular to the positioning surface of the rear fixed positioning seat (320). The movable positioning group includes a right movable positioning seat (330) and a front movable positioning seat (340), the positioning surface of the right movable positioning seat (330) is perpendicular to the positioning surface of the front movable positioning seat (340).

3. The clamping device for machining box-type parts according to claim 2, characterized in that, The linkage unit (610) includes a first linkage unit (611), a second linkage unit (612), and a transfer unit (613). One end of the first linkage unit (611) is connected to each of the right movable positioning seats (330), and the other end of the first linkage unit (611) is rotatably connected to one end of the transfer unit (613). One end of the second linkage unit (612) is rotatably connected to the other end of the transfer unit (613), and the other end of the second linkage unit (612) is connected to the front movable positioning seat (340). The driving unit (510) is connected to the first linkage unit (611), and the driving unit (510) simultaneously drives the right movable positioning seat (330) and the front movable positioning seat (340) to move through the first linkage unit (611) and the second linkage unit (612).

4. The clamping device for machining box-type parts according to claim 2, characterized in that, The mounting base (100) is provided with a vertical guide rail and a horizontal guide rail. The vertical guide rail is slidably engaged with the right movable positioning seat (330), and the horizontal guide rail is slidably connected with the front movable positioning seat (340). The vertical guide rail and the horizontal guide rail are arranged perpendicular to each other.

5. The clamping device for machining box-type parts according to claim 1, characterized in that, Both the fixed positioning seat and the movable positioning seat have protective pads on the side facing the placed workpiece (200).

6. The clamping device for machining box-type parts according to claim 1, characterized in that, The drive unit (510) is a hydraulic power drive assembly, which includes a hydraulic cylinder, a hydraulic pump station and a control valve; the hydraulic cylinder is fixed to the mounting base (100), and the output end of the hydraulic cylinder is connected to the linkage unit (610); the control valve is connected in series on the hydraulic pipeline between the hydraulic pump station and the hydraulic cylinder.

7. The clamping device for machining box-type parts according to claim 1, characterized in that, The upper surface of the support cover plate (110) is provided with anti-slip texture or wear-resistant coating.

8. The clamping device for machining box-type parts according to claim 1, characterized in that, The support cover plate (110) is mounted on the mounting base (100) by means of a support member, and the support cover plate (110) and the mounting base (100) form the moving space of the linkage part (610).

9. A clamping method for machining box-type parts based on the clamping device according to any one of claims 1 to 8, characterized in that, include: Place the box-type parts on the support cover plate (110) so that the box-type parts fit with each fixed positioning seat in the fixed positioning group to complete the reference positioning; When the drive mechanism is activated, the drive unit (510) drives each of the movable positioning seats to move simultaneously through the linkage unit (610); Each of the movable positioning seats moves toward the workpiece (200) simultaneously until the clamping surface of each movable positioning seat is in close contact with the corresponding side of the box-type part, thereby achieving multi-directional synchronous clamping.

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