Flip jig and positioning device

Abstract

The application discloses a turnover clamp and positioning device, comprising a turnover clamp and a positioning device, comprising a mounting seat, a first adsorption module, a pressing arm and a driving part, the whole turnover clamp is adsorbed and mounted on a suitable workbench through the first adsorption module, the adsorption type mounting is convenient for adjusting the position of the clamp to adapt to different workpieces. The workpiece to be processed can be placed near the mounting seat. The driving part can drive the pressing arm connected thereto to rotate around the hinge point of the mounting seat. With the rotation of the pressing arm, the execution end gradually extends out of the mounting seat and presses the workpiece in the downward movement process, so that the workpiece is clamped and fixed.

Description

Technical Field

[0001] This application relates to the field of laser welding, and in particular to a flip-type clamp and positioning device. Background Technology

[0002] In the cutting and welding processes of sheet metal, precise and stable clamping and positioning of the sheet metal is crucial, directly affecting processing accuracy and product quality. Traditional positioning methods often employ visual positioning technology, which can achieve initial positioning of the sheet metal to a certain extent; however, it has significant limitations in practical applications. Visual positioning relies primarily on image acquisition devices such as cameras to identify the surface features of the sheet metal and thus determine its position. During processing, equipment vibration is difficult to completely avoid, and this vibration is transmitted to the sheet metal, causing it to deviate from its initial positioning position. Furthermore, the movement of the equipment during operation further exacerbates this problem, leading to deviations in the sheet metal's position and causing a discrepancy between the actual processing trajectory and the preset trajectory.

[0003] When cutting high-precision metal sheets, if the sheet deviates from its intended shape, the cutting path will not follow the predetermined contour precisely. This results in substandard dimensional accuracy and edge shapes that do not meet design requirements, impacting subsequent splicing and assembly processes, reducing overall production efficiency, and increasing production costs. Similarly, in welding processes, sheet misalignment can cause the weld seam to deviate from its intended position, affecting weld quality and even leading to weld defects, thus impacting the strength and performance of the product structure. Utility Model Content

[0004] This application proposes a flip-type clamp and positioning device, which can solve the problem of sheet metal easily deviating during processing.

[0005] This application proposes a flip-type clamp, comprising:

[0006] Mounting base;

[0007] A first adsorption module is disposed on the mounting base and is used to enable the mounting base to adsorb and install.

[0008] The pressure arm includes a connecting end hinged to the mounting base and an actuating end for clamping the workpiece;

[0009] A driving component, mounted on a mounting base, is used to drive the pressure arm to rotate around the mounting base so that the actuating end is outside the mounting base and presses the workpiece downward.

[0010] In some embodiments, the flip-type clamp further includes a buffer disposed on the mounting base and used to abut against the pressure arm to cushion the downward pressure of the actuator.

[0011] In some embodiments, the first adsorption module includes a negative pressure adsorption module disposed on the lower side of the mounting base, or a first electromagnetic module disposed on the mounting base.

[0012] In some embodiments, the flip-type fixture further includes a limiting portion disposed on the lower side of the actuating end, the limiting portion being used to abut against the side of the workpiece.

[0013] In some embodiments, the flip-type clamp further includes a first limiting member disposed on the mounting base and a second limiting member disposed on the pressure arm, the first limiting member being disposed on one side of the buffer and used to cooperate with the second limiting member.

[0014] In some embodiments, the pressure arm is hook-shaped, including a hook-shaped portion and a cantilever connected to the hook-shaped portion, the end of the hook-shaped portion away from the cantilever is the connecting end, and the end of the cantilever away from the hook-shaped portion constitutes the actuating end; the driving member includes a cylinder whose cylinder body is hinged to the mounting base, and the end of the cylinder's push rod is hinged to the hook-shaped portion.

[0015] This application also proposes a positioning device, including the aforementioned flip-type clamp.

[0016] In some embodiments, the positioning device further includes a receiving platform disposed on one side of the mounting base, the receiving platform being used to receive the workpiece and clamp the workpiece together with the pressure arm.

[0017] In some embodiments, the positioning device further includes a machine base for mounting the mounting base, the machine base being provided with a second adsorption module, the second adsorption module including a second electromagnetic module.

[0018] In some embodiments, the positioning device further includes a third adsorption module disposed on the receiving platform, the third adsorption module being used to adsorb the workpiece.

[0019] The flip-type fixture and positioning device in this embodiment includes a mounting base, a first adsorption module, a pressure arm, a drive component, and a buffer. The first adsorption module adsorbs and mounts the entire flip-type fixture onto a suitable worktable. This adsorption mounting facilitates adjustment of the fixture's position to accommodate different workpieces. The workpiece to be processed can be placed near the mounting base. The drive component drives the pressure arm, which is connected to it, to rotate around the hinge point of the mounting base. As the pressure arm rotates, its actuating end gradually extends beyond the mounting base and presses against the workpiece during its downward movement, thus completing the clamping and fixing of the workpiece. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a flip-type clamp in one embodiment of this application;

[0021] Figure 2This is a schematic diagram of the structure of the flip-type clamp in another embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the positioning device in another embodiment of this application.

[0023] Label Explanation:

[0024] 10. Mounting base; 20. First adsorption module; 30. Pressure arm; 31. Connecting end; 32. Actuating end; 33. Limiting part; 34. Hook-shaped part; 35. Cantilever; 40. Driving component; 50. Buffer; 61. First limiting component; 62. Second limiting component; 71. Receiving platform; 72. Second adsorption module; 73. Third adsorption module.

[0025] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indicators, such as down, left, right, front, back, etc., in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0028] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0029] Furthermore, the descriptions involving "first," "second," etc., in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0030] This application proposes a flip-type clamp, referring to... Figures 1 to 3 The flip-type clamp includes: a mounting base 10; a first adsorption module 20 disposed on the mounting base 10 for enabling the mounting base 10 to adsorb and install; a pressure arm 30 including a connecting end 31 hinged to the mounting base 10 and an actuating end 32 for pressing the workpiece; and a driving member 40 disposed on the mounting base 10 for driving the pressure arm 30 to rotate around the mounting base 10 so that the actuating end 32 is outside the mounting base 10 and presses the workpiece downward.

[0031] In this embodiment, the mounting base 10 is the basic support component of the entire fixture. It is equipped with a first adsorption module 20, which enables the mounting base 10 to be adsorbed and mounted, facilitating the stable fixing of the entire fixture to the corresponding worktable or other support structure, providing a stable foundation for subsequent workpiece clamping operations. The pressure arm 30 is connected to the mounting base 10 via a hinge, with one end being a connecting end 31 and the other end being an actuating end 32 for clamping the workpiece. This hinge design allows the pressure arm 30 to rotate around the mounting base 10, thereby achieving the clamping and releasing actions on the workpiece. The driving component 40 is mounted on the mounting base 10, and its function is to provide power for the rotation of the pressure arm 30, driving the pressure arm 30 to rotate around the mounting base 10, allowing the actuating end 32 to extend out of the mounting base 10 and press down on the workpiece, achieving reliable clamping of the workpiece.

[0032] In this embodiment, the working process of the flip-type fixture is as follows: The entire flip-type fixture is adsorbed and installed on a suitable worktable by the first adsorption module 20. Adsorption installation facilitates adjustment of the fixture's position to adapt to different workpieces. The workpiece to be processed can be placed near the mounting base 10. The drive unit 40 can drive the pressure arm 30 connected to it to rotate around the hinge point of the mounting base 10. As the pressure arm 30 rotates, its actuating end 32 gradually extends out of the mounting base 10 and presses the workpiece during the downward movement, completing the clamping and fixing of the workpiece. When the workpiece processing is completed and it is necessary to release the workpiece, the drive unit 40 reverses its action, causing the pressure arm 30 to rotate in the opposite direction, so that the actuating end 32 gradually disengages from the workpiece, and the pressure arm 30 is returned to its initial position. At this time, the workpiece is released, and subsequent operations such as part removal can be performed.

[0033] In some embodiments, the buffer 50 is disposed on the mounting base 10. Its key function is to abut against the pressure arm 30. When the pressure arm 30 performs its clamping stroke, the buffer 50 can buffer the downward pressure of the actuator 32, preventing damage to the workpiece due to excessive pressure. It also helps to improve the stability and reliability of the fixture operation and reduce the impact of shock and vibration on the workpiece and the fixture itself. During the downward pressing process of the pressure arm 30, the buffer 50 begins to function, buffering the downward pressure applied by the pressure arm 30, keeping the clamping force on the workpiece within a reasonable range, ensuring stable clamping of the workpiece without damage due to excessive force.

[0034] In some embodiments, the first adsorption module 20 includes a negative pressure adsorption module disposed on the lower side of the mounting base 10, or a first electromagnetic module disposed on the mounting base 10. The negative pressure adsorption module includes a suction cup disposed on the lower side of the mounting base 10, which is connected to an external vacuum generator via an air pipe. During operation, the vacuum generator is activated to generate negative pressure, making the air pressure inside the suction cup lower than the external atmospheric pressure, thereby generating an adsorption force that firmly adsorbs the mounting base 10 onto the table below. The suction cup is typically made of a flexible material, which can fit tightly against the table surface, ensuring the reliability of the adsorption effect. A tight adsorption connection is formed between the mounting base 10 and the table surface, providing a stable foundation support for the entire fixture and preventing fixture displacement due to equipment vibration or movement during processing, which would affect the processing accuracy of the workpiece.

[0035] Furthermore, the first electromagnetic module mainly includes an iron core, an electromagnetic coil wound around the iron core, and a magnetic conductor. When the electromagnetic coil is energized, it generates a magnetic field, which strengthens the magnetic attraction between the magnetic conductor and the platform, thereby firmly attaching the mounting base 10 to the platform. By controlling the on / off state of the electromagnetic coil, the attachment state of the mounting base 10 can be quickly switched. When it is necessary to move or adjust the position of the clamp, simply cut off the power, the electromagnetic attraction disappears, and the clamp can be easily removed from the platform, making the operation convenient. Of course, the mounting base 10 can also be made of this material, and the first electromagnetic module can magnetize the mounting base 10, so that the mounting base 10 itself can also be attached to the platform.

[0036] In this embodiment, both the negative pressure adsorption module and the first electromagnetic module can effectively adsorb the mounting base 10 onto the table surface, providing a stable foundation for the entire fixture and ensuring that the fixture will not shift due to equipment vibration or movement during processing, thereby improving the accuracy and quality of workpiece processing. Both adsorption modules are easy to operate. The negative pressure adsorption module only requires starting and stopping the vacuum generator to achieve adsorption and release; the first electromagnetic module can also quickly complete the installation and disassembly of the fixture by controlling the on and off of the electromagnetic coil, greatly improving work efficiency and saving operation time. The negative pressure adsorption module is suitable for table surfaces of various materials. As long as the table surface is flat and can fit tightly with the suction cup, stable adsorption can be achieved; the first electromagnetic module is particularly suitable for ferromagnetic table surfaces, where it can generate a strong magnetic adsorption force, ensuring the stable installation of the fixture. In practical applications, the appropriate adsorption module can be selected according to the specific processing equipment and table surface material, making it widely applicable. These two adsorption modules have relatively simple structures, can operate stably for a long time in industrial production environments, have low failure rates and low maintenance costs, and provide reliable clamping and positioning guarantees for metal sheet cutting and welding processes.

[0037] In some embodiments, the flip-type clamp further includes a limiting part 33 located on the lower side of the actuating end 32, which abuts against the side of the workpiece. In this embodiment, when the pressure arm 30 clamps the workpiece, the lower side of its actuating end 32 has a protrusion that can cooperate with the receiving platform 71 on which the workpiece is placed. Specifically, a relief hole or relief groove can be provided on the receiving platform 71 to avoid the protrusion. The buffer 50 can be a hydraulic buffer. When the pressure arm 30 rotates and abuts against the buffer 50, the limiting part 33 is inserted into the aforementioned relief hole or relief groove. Under the action of the buffer 50, the pressure arm 30 slowly presses down, and a certain gap is formed between the actuating end 32 and the external receiving platform 71. The plate placed on the receiving platform 71 can also move within the gap to fine-tune the plate so that the edge of the plate abuts against the limiting part 33 for horizontal limiting. As the pressure arm 30 continues to press down slowly, it can cooperate with the receiving platform 71 to clamp and fix the plate. In this embodiment, the limiting part 33 cooperates with the avoidance structure of the receiving platform 71, providing a precise horizontal positioning reference for the sheet metal after insertion. The operator can fine-tune the sheet metal according to the position of the limiting part 33, greatly improving the processing accuracy of the sheet metal.

[0038] The hydraulic damper ensures a smooth and controllable downward pressing process for the pressure arm 30, preventing deformation or damage to the sheet metal due to rapid impact. Simultaneously, the tight fit between the pressure arm 30 and the receiving platform 71 applies force evenly from both above and below, ensuring that the sheet metal does not shift or loosen due to external forces during clamping, providing strong support for high-precision machining. By adjusting the position and size of the clearance holes or grooves in the receiving platform 71, as well as the downward stroke of the pressure arm 30, it can flexibly adapt to the clamping needs of various sheet metal specifications, exhibiting wide versatility. The design of the limiting part 33 and the receiving platform 71 simplifies the sheet metal clamping process and reduces manual positioning time. Furthermore, the smooth performance of the hydraulic damper effectively reduces equipment failure rates, improves processing efficiency, and meets the needs of modern industrial automated production.

[0039] In some embodiments, the flip-type clamp further includes a first limiting member 61 disposed on the mounting base 10 and a second limiting member 62 disposed on the pressure arm 30. The first limiting member 61 is disposed on one side of the buffer 50 and is used to cooperate with the second limiting member 62.

[0040] In this embodiment, the free ends of the first limiting member 61 and the second limiting member 62 are mating ends. One mating end can be configured as a wedge shape, and the other mating end as a V-groove, allowing them to mate and preventing the pressure arm 30 from swaying along the hinge axis. In the initial position, the mating ends of the first limiting member 61 and the second limiting member 62 are not in contact. When the pressure arm 30 rotates and presses down under the push of the driving member 40, the second limiting member 62 on the pressure arm 30 gradually moves closer to the first limiting member 61. As the pressure arm 30 continues to rotate, the mating end of the second limiting member 62 contacts and begins to mate with the mating end of the first limiting member 61. As the pressure arm 30 presses down further, the wedge and V-groove fit tightly together, achieving the limiting function and preventing the pressure arm 30 from swaying along the hinge axis. The pressure arm 30 completes the pressing action and clamps the workpiece. At this time, the first limiting member 61 and the second limiting member 62 are tightly mated, limiting the range of motion of the pressure arm 30 and ensuring the stability of the clamping. When the drive component 40 reverses, the pressure arm 30 rotates, the second limiting component 62 separates from the first limiting component 61, and the pressure arm 30 returns to its initial position.

[0041] The tight engagement of the first limiting member 61 and the second limiting member 62 effectively limits the sway of the pressure arm 30 during movement, improving the stability of the fixture. This is especially important when performing high-precision machining on workpieces, ensuring machining quality. The wedge and V-groove design makes the engagement between the limiting members tighter and more reliable. The V-groove can automatically center, ensuring that the pressure arm 30 always moves in the correct direction during pressing, avoiding workpiece machining errors caused by sway. The engagement end design of the limiting members can be adjusted according to different workpiece sizes and machining requirements, such as being set in a conical or tapered hole manner. The design of the limiting members reduces friction and collision between the pressure arm 30 and the mounting base 10, reducing component wear and increasing the service life of the fixture. By limiting the range of motion of the pressure arm 30, excessive collisions between the pressure arm 30 and other components during movement are avoided, improving operational safety.

[0042] In some embodiments, the pressure arm 30 is hook-shaped, including a hook-shaped portion 34 and a cantilever 35 connected to the hook-shaped portion 34. The end of the hook-shaped portion 34 away from the cantilever 35 is a connecting end 31, and the end of the cantilever 35 away from the hook-shaped portion 34 constitutes an actuating end 32. The drive member 40 includes a cylinder whose cylinder body is hinged to the mounting base 10, and the end of the cylinder's push rod is hinged to the hook-shaped portion 34.

[0043] In this embodiment, the pressure arm 30 is generally hook-shaped, consisting of a hook-shaped portion 34 and a cantilever 35. One end of the hook-shaped portion 34 serves as a connecting end 31, hinged to the mounting base 10, allowing the pressure arm 30 to rotate flexibly around the mounting base 10. The other end extends outward to form the aforementioned cantilever 35, with the end of the cantilever 35 away from the hook-shaped portion 34 forming the actuating end 32, which presses down and clamps the workpiece during operation. The cylinder, serving as the drive source, has its cylinder body hinged to the mounting base 10, ensuring uniform and stable force distribution during operation. The cylinder's push rod end is hinged to the hook-shaped portion 34, and the extension and retraction of the push rod drives the pressure arm 30 to rotate around the mounting base 10, thereby achieving the pressing or lifting action of the actuating end 32.

[0044] The pressure arm 30 is in a standby position under the push of the cylinder push rod. At this time, the actuator 32 is away from the workpiece, placing the sheet metal to be processed onto the receiving platform 71 near the mounting base 10. The actuator 32 of the pressure arm 30 has not yet contacted the workpiece, and the workpiece is in a preliminary positioning state. The cylinder start push rod retracts, pushing the hook-shaped part 34 to rotate 100-150°, thereby causing the pressure arm 30 to rotate around the hinge point of the mounting base 10. As the pressure arm 30 rotates, the actuator 32 gradually moves downward and closer to the workpiece. Subsequently, the actuator 32 accurately reaches the workpiece surface and applies pressure, firmly pressing the workpiece onto the receiving platform 71, completing the clamping and fixing of the workpiece. With the workpiece firmly clamped, the cutting or welding equipment begins processing the sheet metal. After processing is completed, the push rod is pushed out, causing the hook-shaped part 34 to rotate in the opposite direction. The pressure arm 30 then rotates around the mounting base 10, and the actuator 32 gradually lifts up, disengaging from the workpiece and completing the release action. The pressure arm 30 returns to the initial standby position, ready to receive the next clamping task.

[0045] The shape of the hook-shaped clamping arm 30 can be optimized according to workpieces of different sizes and shapes. Parameters such as the curvature and depth of the hook-shaped part 34 can be adjusted to adapt to the clamping requirements of various complex workpieces. Meanwhile, the cylinder specifications can also be selected according to the actual required clamping force, making the entire clamping system highly adaptable and flexible, capable of meeting the application requirements of different metal sheet processing scenarios.

[0046] This application also proposes a positioning device, including a flip-type clamp. The positioning device further includes a receiving platform 71 located on one side of the mounting base 10. The receiving platform 71 is used to receive the workpiece and, together with the pressure arm 30, clamps the workpiece. The positioning device also includes a machine base for mounting the mounting base 10. The machine base is equipped with a second adsorption module 72, which includes a second electromagnetic module. In this embodiment, the flip-type clamp, as the core component of the positioning device, has functions such as clamping the workpiece. Its mounting base 10 is used to connect other components and is fixed to the machine base via the first adsorption module 20. The pressure arm 30 can rotate around the mounting base 10, and under the action of the driving member 40, it clamps and releases the workpiece. The buffer 50 is used to reduce the impact force of the pressure arm 30 on the workpiece. The receiving platform 71, located on one side of the mounting base 10, is mainly used to receive the workpiece, providing stable support for the workpiece, and works in conjunction with the pressure arm 30 to clamp the workpiece. The machine tool is used to install the mounting base 10 and the receiving platform 71 of the entire positioning device. The second adsorption module 72 on it includes a second electromagnetic module, which can magnetize the table surface of the machine tool. When the mounting base 10 and the receiving platform 71 are made of magnetic material, they can also be magnetically attracted and fixed to enhance the overall stability of the positioning device and ensure that the positioning device will not be displaced during the workpiece processing.

[0047] In some embodiments, the positioning device further includes a third adsorption module 73 disposed on the receiving platform 71, which is used to adsorb the workpiece. The third adsorption module 73 is typically composed of multiple adsorption units, which may be negative pressure adsorption pads or small electromagnetic adsorbers, etc., and are evenly distributed on the surface of the receiving platform 71 for adsorbing and fixing the workpiece placed on the receiving platform 71. When the workpiece is placed on the receiving platform 71, it is initially adsorbed and fixed on the receiving platform 71 under the action of the third adsorption module 73. For negative pressure adsorption pads, a negative pressure is generated by a connected vacuum generator to adsorb the workpiece; for small electromagnetic adsorbers, a magnetic field is generated after being energized to adsorb the workpiece.

[0048] In this embodiment, the operation of the flip-type fixture and positioning device is as follows: The entire flip-type fixture is adsorbed and installed on a suitable worktable by the first adsorption module 20. Adsorption installation facilitates adjustment of the fixture's position to accommodate different workpieces. The workpiece to be processed can be placed near the mounting base 10. The drive unit 40 drives the connected pressure arm 30 to rotate around the hinge point of the mounting base 10. As the pressure arm 30 rotates, its actuator 32 gradually extends out of the mounting base 10 and presses the workpiece during the downward movement, completing the clamping and fixing of the workpiece. During the downward pressing process of the pressure arm 30, the buffer 50 begins to function, buffering the downward pressure applied by the pressure arm 30, keeping the clamping force on the workpiece within a reasonable range, ensuring stable clamping of the workpiece without damage due to excessive force. When the workpiece processing is completed and it is necessary to release the workpiece, the drive unit 40 reverses its action, causing the pressure arm 30 to rotate in the opposite direction, gradually disengaging the actuator 32 from the workpiece, and retracting the pressure arm 30 to its initial position. At this time, the workpiece is released, and subsequent operations such as part removal can be performed.

[0049] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A flip-type clamp, characterized in that, include: Mounting base; A first adsorption module is disposed on the mounting base and is used to enable the mounting base to be adsorbed and installed. The pressure arm includes a connecting end hinged to the mounting base and an actuating end for clamping the workpiece; A driving component, mounted on a mounting base, is used to drive the pressure arm to rotate around the mounting base so that the actuating end is outside the mounting base and presses the workpiece downward.

2. The flip-type clamp according to claim 1, characterized in that, The flip-type clamp also includes a buffer, which is disposed on the mounting base and is used to abut against the pressure arm to buffer the downward pressure of the actuator.

3. The flip-type clamp according to claim 2, characterized in that, The first adsorption module includes a negative pressure adsorption module disposed on the lower side of the mounting base, or a first electromagnetic module disposed on the mounting base.

4. The flip-type clamp according to claim 3, characterized in that, The flip-type fixture also includes a limiting part located on the lower side of the actuating end, the limiting part being used to abut against the side of the workpiece.

5. The flip-type clamp according to claim 4, characterized in that, The flip-type clamp also includes a first limiting member disposed on the mounting base and a second limiting member disposed on the pressure arm. The first limiting member is disposed on one side of the buffer and is used to cooperate with the second limiting member.

6. The flip-type clamp according to claim 5, characterized in that, The pressure arm is hook-shaped and includes a hook-shaped part and a cantilever connected to the hook-shaped part. The end of the hook-shaped part away from the cantilever is the connecting end, and the end of the cantilever away from the hook-shaped part constitutes the actuating end. The driving member includes a cylinder whose cylinder body is hinged to the mounting base, and the end of the cylinder's push rod is hinged to the hook-shaped part.

7. A positioning device, characterized in that, The flip-type clamp includes any one of claims 1 to 6.

8. The positioning device according to claim 7, characterized in that, The positioning device also includes a receiving platform located on one side of the mounting base. The receiving platform is used to receive the workpiece and, together with the pressure arm, clamps the workpiece.

9. The positioning device according to claim 8, characterized in that, The positioning device further includes a machine base for mounting the mounting base, the machine base being provided with a second adsorption module, the second adsorption module including a second electromagnetic module.

10. The positioning device according to claim 9, characterized in that, The positioning device also includes a third adsorption module disposed on the receiving platform, the third adsorption module being used to adsorb the workpiece.

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