Installation pressure maintaining jig

Abstract

The utility model provides an installation pressure-maintaining jig, which is used for installing an attachment on a product and maintaining pressure, and comprises a machine table, a pressure-maintaining component and a pressure-maintaining component, the product positioning table is arranged on the machine table and is used for positioning the product; the attaching structure is arranged on the machine table and comprises a mounting frame, an overturning component, a floating component, a pressure maintaining component and an adsorption component, the overturning component is arranged on the mounting frame in a sliding mode, the floating component is arranged on the overturning component, the adsorption component is arranged on the pressure maintaining component, and the pressure maintaining component is connected with the floating component. In the prior art, the foot pad is installed on the tablet computer to achieve the damping and pressure-resisting protection effect, and compared with manual installation or full-automatic installation of the foot pad, the semi-automatic installation pressure maintaining jig integrates flexibility of manual operation and accuracy and high efficiency of automation.

Description

Technical Field

[0001] This utility model relates to the field of electronic component assembly technology, specifically to an installation and pressure-holding fixture. Background Technology

[0002] When installing feet on electronic components to protect them, problems such as inaccurate alignment and warping of the feet often occur during installation, leading to installation failure. Summary of the Invention

[0003] In view of this, the present invention provides an installation pressure-holding fixture to solve the problems of inaccurate alignment and poor adhesion during the foot pad attachment process.

[0004] This utility model provides an installation pressure-holding fixture, which includes:

[0005] Machine tool;

[0006] A product positioning station is installed on the machine and is used to position the product.

[0007] An attachment structure is provided on the machine base, which includes a mounting frame, a flipping component, a floating component, a pressure-holding component, and an adsorption component. The flipping component is slidably disposed on the mounting frame, the floating component is disposed on the flipping component, and the adsorption component is disposed on the pressure-holding component. The pressure-holding component and the floating component are connected.

[0008] The flipping component drives the adsorption component to flip to a vertical position. The attachment is manually loaded onto the adsorption component. Then, the flipping component drives the adsorption component and the pressure holding component to flip to face the product positioning table. The attachment is then attached to the product and pressure is maintained.

[0009] Preferably, the product positioning platform includes a carrier and a transfer component. The carrier is used to carry the product and position it, and the transfer component is used to move the carrier back and forth between the loading station and the attaching station.

[0010] Preferably, the carrier includes a carrier plate, a stop block, a push block, and a driving component. The stop block is provided in three sets, respectively located at three corners of the carrier plate. The push block is located at an empty corner of the carrier plate and is slidably disposed relative to the carrier plate. The driving component drives the push block to move closer to or away from the stop block located at its opposite corner.

[0011] Preferably, the carrier further includes a buffer, which includes a middle plate, an elastic element, and a cylindrical rod. One end of the cylindrical rod is provided with a stop, and the end away from the stop is connected to a push block. The middle plate is sleeved on the cylindrical rod and can move along the cylindrical rod. At least two cylindrical rods are provided.

[0012] Preferably, the flipping component includes a U-shaped plate, a flipping drive, a rotating shaft, and a limiting member. The flipping drive, the rotating shaft, and the limiting member are respectively disposed on the U-shaped plate, and the limiting member can limit the rotation stroke of the rotating shaft.

[0013] Preferably, the limiting component includes a crossbeam, a limiting baffle, a limiting mounting plate, and a buffer. The crossbeam is mounted on the U-shaped plate, the limiting baffle is located on the crossbeam and above the rotation axis, and is offset to one side relative to the rotation axis. The buffer is located on the limiting baffle, and the limiting mounting plate is located on the rotation axis. When the rotation axis drives the limiting mounting plate to rotate to a vertical position, the limiting mounting plate can just abut against the side surface of the limiting baffle. When the limiting mounting plate rotates to a horizontal position, one end of the limiting mounting plate abuts against the working end of the buffer.

[0014] Preferably, the floating component includes a first connecting plate, a second connecting plate, and a third connecting plate, wherein the first connecting plate and the second connecting plate are slidably connected along the X direction, and the second connecting plate and the third connecting plate are slidably connected along the Y direction.

[0015] Preferably, the pressure-holding component includes a base plate, a ring-shaped pressure plate, a guide pin, and a limiting block. The base plate is disposed on the first connecting plate, and the pressure plate is disposed on the base plate. The pressure plate and the base plate are concentrically arranged, and the outer diameter of the pressure plate is not less than that of the base plate.

[0016] Preferably, the pressure-holding fixture further includes a housing, with an opening on one side and a safety light curtain on the opening side of the housing.

[0017] Preferably, the machine is equipped with a start button, an emergency stop button, and casters.

[0018] In the existing technology, foot pads are installed on tablet computers to achieve shock absorption and pressure resistance protection. Compared with manual or fully automatic installation of foot pads, the semi-automatic attachment fixture of this utility model combines the flexibility of manual operation with the precision and efficiency of automation, and has unique advantages.

[0019] 1. Low equipment investment: Compared with fully automated fixtures, semi-automated fixtures have a relatively simple structure and do not require complex automated control systems, high-precision sensing devices, or a large number of robotic arms and other components, which greatly reduces equipment procurement costs. For small and medium-sized enterprises with limited budgets or production scenarios with low product output, semi-automated fixtures are an economical and practical choice.

[0020] 2. Reasonable labor costs: Although some manual operation is required, the use of fixtures to complete key positioning and pressing actions reduces the requirements for worker proficiency and operating speed. Ordinary workers can be put to work after simple training. Moreover, compared with purely manual installation, semi-automatic fixtures improve work efficiency and achieve higher output per unit of labor cost.

[0021] 3. High Product Adaptability: Tablet PCs are rapidly updated, and their size, shape, and foot pad placement may change frequently. Semi-automatic fixtures can quickly adapt to the foot pad installation requirements of different product models through relatively simple methods such as replacing some positioning modules and adjusting the operation process. In contrast, fully automated fixtures are often designed for specific products, and changing product models may require large-scale modifications or even the purchase of new equipment.

[0022] 4. Advantages of small-batch production: For small-batch, multi-variety tablet production, fully automated fixtures have high debugging and maintenance costs, long setup times, and are not suitable for frequent product changes. Semi-automated fixtures, on the other hand, can flexibly adjust production schedules, respond to different order demands at any time, and quickly start and stop production, reducing equipment idle costs.

[0023] 5. Low operational difficulty: Semi-automatic fixtures typically employ intuitive mechanical structures and simple operating interfaces. Workers only need to perform basic operations such as placing the tablet and pressing the start button, making them easy to understand and master. In contrast, fully automated fixtures are complex to operate, requiring professional personnel for programming, debugging, and monitoring.

[0024] 6. Low maintenance costs: Semi-automatic fixtures have a simple structure and relatively few potential points of failure. When a fault occurs, maintenance personnel can easily troubleshoot and repair the problem using basic tools and experience. Furthermore, their parts are highly interchangeable, resulting in low replacement costs. In contrast, fully automated fixtures, once they malfunction, may involve complex electrical and mechanical system repairs, requiring specialized technicians and expensive testing equipment, leading to longer repair times and higher costs.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of an isometric view of the installation of the pressure-holding fixture is shown;

[0028] Figure 2 A schematic diagram showing the front view of the pressure-holding fixture with some components omitted is provided.

[0029] Figure 3 A partial structural diagram of the attachment structure for mounting the pressure-holding fixture is shown.

[0030] Figure label:

[0031] 1. Machine base; 11. Start button; 12. Emergency stop button; 13. Casters;

[0032] 2. Housing; 21. Safety light curtain;

[0033] 3. Product positioning platform; 31. Carrier; 311. Carrier plate; 312. Stop block; 313. Push block; 314. Drive component mounting plate; 315. Drive component; 316. Intermediate plate; 317. Elastic component; 318. Column rod;

[0034] 4. Attachment structure; 41. Flipping component; 411. U-shaped plate; 412. Flipping drive component; 413. Rotating shaft; 414. Crossbeam; 415. Limiting baffle; 416. Limiting mounting plate; 417. Buffer component; 42. Floating component; 43. Pressure holding component; 431. Base plate; 432. Pressure plate; 433. Guide pin; 434. Limiting block; 44. Adsorption component; 45. Mounting bracket; 46. Longitudinal movement module. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Furthermore, 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. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] The installation pressure-holding fixture provided in this embodiment includes a machine base 1, a housing 2, a product positioning platform 3, and an attachment structure 4. The attachment structure 4 includes a flipping component 41, a floating component 42, a pressure-holding component 43, and an adsorption component 44. These will be discussed in conjunction with... Figures 1 to 3 The connection relationships and working principles of the aforementioned components are described in detail.

[0040] like Figure 1 As shown, Figure 1 A schematic diagram of the isometric view of the pressure-holding fixture is shown. The product positioning platform 3 and the attachment structure 4 are respectively mounted on the machine base 1 and located within the housing 2. One side of the housing 2 is open, which can be used for loading and unloading the attachments to be attached, as well as loading the attachment itself; these processes will be described later. The machine base 1 has a built-in cavity, and the control unit of the attachment fixture is located inside the cavity. The plate on the side of the cavity closest to the opening of the housing 2 is recessed relative to the plates on both sides, and the corresponding bottom plate of the cavity is also shorter than the upper side plate, forming a clearance space. When manually loading and unloading, the operator can sit in front of the machine base 1. The clearance space provides legroom for the operator. The functions of the start button 11, emergency stop button 12, and casters 13 on the machine base 1 will also be described later.

[0041] See Figure 2 , Figure 2 This is a schematic diagram of the main view when the housing 2 is omitted, showing the installation of the pressure-holding fixture. Figure 2As shown in the embodiment, the product positioning platform 3 is used to mount and position the attachment to be applied. In this embodiment, the attachment to be applied is a tablet computer (hereinafter referred to as the product), and the attachment is a foot pad installed on the product for the tablet computer's protection against impact and vibration. In specific operation, the product is first positioned on the product positioning platform 3, and then the attachment is fed to the application structure 4. With the joint cooperation of the product positioning platform 3 and the application structure 4, the attachment is applied to the product and pressure is maintained.

[0042] Preferably, the product positioning platform 3 includes a carrier 31 and a transfer component. The carrier 31 is used to carry and position the product, and the transfer component is used to move the carrier 31 back and forth between the loading station and the attaching station. See also Figure 1 As shown, the carrier 31 includes a carrier plate 311, a stop block 312, a push block 313, and a driving component. The stop block 312 is provided in three sets, which are respectively provided at three corners of the carrier plate 311. The push block 313 is provided at an empty corner of the carrier plate 311 and is slidably arranged relative to the carrier plate 311. The driving component drives it to approach or move away from the stop block 312 provided at the opposite corner, which can push the product against the stop block 312 at the opposite corner to achieve product positioning.

[0043] In this embodiment, two sets of blocks 312 are rectangular frames and are arranged diagonally opposite each other on the carrier plate 311. One block 312 is an arc-shaped plate that matches the shape of the product. The push block 313 is also an arc-shaped plate and is arranged diagonally opposite to the arc-shaped block 312 on the carrier plate 311.

[0044] Furthermore, the driving component includes a driving component mounting plate 314 and a driving component 315. A recessed groove is provided on the carrier plate 311. The driving component mounting plate 314 is engaged in the groove and fixed in the groove with locking bolts. It should be noted that the driving component mounting plate 314 and the carrier plate 311 engaged in the groove are coplanar on the side near the attachment structure 4, that is, they are located on the same horizontal plane. The driving component 315 is provided on the driving component mounting plate 314. The push block 313 is provided on the driving component mounting plate 314 through a slide rail. The driving component 315 realizes the pushing of the push block 313 on the product.

[0045] Furthermore, the carrier 31 also includes a buffer structure to cushion the force exerted on the product by the pusher 313, preventing the impact force on the product from damaging the product or causing the product to tip over. The buffer structure includes an intermediate plate 316, an elastic element 317, and a cylindrical rod 318. One end of the cylindrical rod 318 is provided with a stop, and the end away from the stop is connected to the push block 313. The intermediate plate 316 is sleeved on the cylindrical rod 318 and can move along the cylindrical rod 318. The stop on the cylindrical rod 318 can prevent the intermediate plate 316 from detaching from its rod body. To ensure the stability of the intermediate plate 316, at least two cylindrical rods 318 are provided. The intermediate plate 316 passes through two cylindrical rods 318 respectively, which can play a mutual restraining role, ensuring that the intermediate plate 316 can only slide along its length relative to the cylindrical rod 318 and will not rotate. The elastic element 317 is preferably a compression spring, which is sleeved on the rod body of the cylindrical rod 318 located between the intermediate plate 316 and the push block 313. The driving end of the driving element 315 is connected to the intermediate plate 316.

[0046] Preferably, the transplanting component may include a rodless cylinder (not shown in the figure), which is disposed below the table surface of the machine base 1 to improve the overall space utilization of the attachment fixture. A strip-shaped groove is provided on the table surface through which the cylinder passes. The transplanting component also includes a connecting plate, one end of which is connected to the drive end of the rodless cylinder, and the other end of which passes through the strip-shaped groove and connects to the carrier plate 311. The carrier plate 311 and the machine base 1 are slidably connected via a slide rail and a slider. The length of the strip-shaped groove limits the stroke of the carrier plate 311; that is, the maximum stroke of the carrier plate 311 is reached when the connecting plate abuts against both ends of the strip-shaped groove.

[0047] See Figure 2 The attachment fixture also includes a mounting frame 45. The attachment structure 4 is slidably connected to the mounting frame 45 via a slide rail and a slider, and slides relative to the mounting frame 45 via a longitudinal movement module 46 to move closer to or away from the carrier 31. A flipping member 41 is disposed on the mounting frame 45, a floating member 42 is disposed on the flipping member 41, and an adsorption member 44 is disposed on the pressure holding member 43. The pressure holding member 43 and the floating member 42 are connected.

[0048] Specifically, the flipping component 41 drives the adsorption component 44 to flip to a vertical position. The manual attaching device is then placed onto the adsorption component 44. The vertical position refers to the adsorption surface of the adsorption component 44 facing the opening of the housing 2, which facilitates manual attachment. Then, the flipping component 41 drives the adsorption component 44 and the pressure holding component 43 to flip to face the carrier 31. The longitudinal moving module moves the attaching device toward the product until the attaching device is attached to the product and pressure is applied. During this process, the pressure holding component 43 and the adsorption component 44 move synchronously.

[0049] Preferably, the flipping component 41 includes a U-shaped plate 411, a flipping drive 412, a rotating shaft 413, and a limiting component. For ease of description, the various parts of the U-shaped plate 411 are defined as follows: the plates on both sides of the U-shaped plate 411 are called side plates, and the plate connecting the two side plates is called a back plate. The back plate is connected to the drive end of the longitudinal movement module 46. The two ends of the rotating shaft 413 are rotatably connected to the side plates respectively. The flipping drive 412 is located on one of the side plates, and its drive end is connected to one end of the rotating shaft 413. When the flipping drive 412 is activated, it can drive the rotating shaft 413 to rotate. The limiting component can limit the rotation stroke of the rotating shaft 413. In this embodiment, under the limitation of the limiting component, the maximum rotation stroke of the rotating shaft 413 is 90 degrees, which means it can pass through the loading position and the attachment and pressure holding position in sequence.

[0050] Specifically, the limiting components include a crossbeam 414, a limiting baffle 415, a limiting mounting plate 416, and a buffer 417. The crossbeam 414 is mounted on both side plates. The limiting baffle 415 is located on the crossbeam 414 and above the rotation axis 413, offset relative to the rotation axis 413 towards the back plate. The purpose of this offset will be explained later. The limiting baffle 415 is a U-shaped plate. The buffer 417 is located on the limiting baffle 415 and is perpendicular to the crossbeam 414. The limiting mounting plate 416 is located on the rotation axis 413. 3 is located in the middle of the limiting mounting plate 416. When the rotating shaft 413 drives the limiting mounting plate 416 to flip to a vertical position, the limiting mounting plate 416 can just abut against the side surface of the limiting baffle 415. The aforementioned limiting baffle 415 is offset from the central axis of the rotating shaft 413 so that when the limiting mounting plate 416 is flipped to a vertical position, it can just abut against the limiting baffle 415. When the limiting mounting plate 416 is flipped to a horizontal position, one end of the limiting mounting plate 416 abuts against the working end of the buffer 417.

[0051] See also Figure 2 As shown, the floating member 42 is disposed between the pressure-holding member 43 and the flipping member 41, serving as a medium connecting the two. The floating member 42 enables fine-tuning of the position of the pressure-holding member 43 in the X and Y directions. The floating member 42 includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate is connected to the pressure-holding member 43, and the third connecting plate is connected to the limiting mounting plate 416.

[0052] The first and second connecting plates are slidably connected along the X-direction, and the second and third connecting plates are slidably connected along the Y-direction. The X and Y directions are perpendicular to each other. Taking the connection method of the first and second connecting plates as an example, they are connected by two sets of slide rails. The first connecting plate has two sets of first blocking parts, and the second connecting plate has two sets of second blocking parts. Visually, the second blocking parts are located between the two first blocking parts. The first and second blocking parts cooperate with each other, and a compression spring is provided between any two of them. It should be noted that the first blocking parts will not touch the second connecting plate, and similarly, the second blocking parts will not touch the first connecting plate to avoid friction. The connection method of the second and third connecting plates is the same as described above, and the connection method of the first and second connecting plates is the same, so it will not be repeated.

[0053] Preferably, the pressure holding member 43 includes a base plate 431, a ring-shaped pressure plate 432, a guide pin 433, and a limiting block 434. The base plate 431 is disposed on the first connecting plate, and the pressure plate 432 is disposed on the base plate 431. The pressure plate 432 and the base plate 431 are concentrically disposed. The outer diameter of the pressure plate 432 is not smaller than that of the base plate 431, so as to avoid interference from the carrier 31 during the attachment and pressure holding process due to the excessively large diameter. The limiting blocks 434 are provided in four sets, respectively arranged along the X and Y directions, in pairs. The line connecting the two limiting blocks 434 in a set can pass through the center of the circle, so that when attaching accessories or holding pressure, it can just avoid the stop block 312 and push block 313. The substrate 431 has an outwardly extending extension on one side, and the guide pin 433 is provided on the extension. The guide pin 433 is inserted into the guide hole on the carrier tray that carries the product (the product needs to flow between multiple stations during the processing. In order to avoid damage to the product during the processing, the product is usually placed on the carrier tray). The limiting blocks 434 are finally engaged in the limiting groove of the carrier tray.

[0054] During the pressing process, the guide pin 433 and the guide hole may become misaligned. If not corrected in time, the attachment will not be able to be accurately attached to the product's attachment area. The floating component 42 mentioned above comes into play at this time. A handle is provided on the substrate 431. By pulling the handle, the position of the pressure plate 432 relative to the product on the carrier 31 is adjusted, so that the guide pin 433 can be smoothly inserted into the guide hole, and the two are properly aligned.

[0055] Preferably, the adsorption component 44 includes pores and a negative pressure component (not shown in the figure). The pressure plate 432 is provided with a mounting groove, and a rubber pad is provided in the mounting groove. The thickness of the rubber pad is less than the depth of the mounting groove. The pores pass through the substrate 431, the pressure plate 432 and the rubber pad in sequence. It should be noted that, with the rubber pad as a reference, the pores are evenly spaced around the rubber pad, with two rings, inner and outer. The two rings of pores are staggered and distributed on the side of the rubber pad near the groove wall of the mounting groove, so that a channel appears in the middle of the rubber pad. This channel allows the adhesive backing position of the attachment to pass through, so that the adhesive backing position can avoid the pores, and the adhesive backing position can be held under pressure and successfully activated.

[0056] See Figure 1 Based on the above working process, a safety light curtain 21 is installed on the opening side of the housing 2, which is electrically connected to the control mechanism. Since manual operation of the equipment is required, if the safety light curtain 21 is blocked while the equipment is in operation, the control mechanism will pause the equipment to prevent production accidents. Furthermore, an emergency stop button 12 is also electrically connected to the control mechanism and is located on the machine base 1; its function is to urgently stop the current equipment. In addition, Figure 1 The diagram schematically shows a start button 11, which is also electrically connected to the control mechanism, used to start the current equipment and automatically perform the above-mentioned actions. Furthermore, the casters 13 installed on the machine platform 1 facilitate movement of the machine platform 1. In this embodiment, flat-bottomed fixed casters 13 are used. Flat-bottomed fixed casters 13 typically have high load-bearing capacity, capable of supporting objects of considerable weight, and the wheel direction is fixed, ensuring that the machine platform 1 moves in the predetermined direction and preventing deviation from the predetermined trajectory.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the innovative concept of the present utility model and based on the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An installation pressure maintaining jig characterized by comprising: A mounting and holding fixture for mounting a sticker on a product, the mounting and holding fixture comprising: a machine table; a product positioning table arranged on the machine table for positioning the product; a mounting structure arranged on the machine table, the mounting structure comprising a mounting frame, a turnover member, a floating member, a holding member and an adsorption member, the turnover member being slidingly arranged on the mounting frame, the floating member being arranged on the turnover member, the adsorption member being arranged on the holding member, the holding member and the floating member being connected; wherein the turnover member drives the adsorption member to turn to a vertical posture, a worker loads the sticker on the adsorption member, and then the turnover member drives the adsorption member and the holding member to turn to a side facing the product positioning table, the sticker is mounted on the product and held.

2. The mounting and pressure maintaining jig according to claim 1, wherein The product positioning table comprises a carrier and a transplanting member, the carrier is used for carrying and positioning the product, and the transplanting member is used for driving the carrier to reciprocate between a loading station and a mounting station.

3. The mounting and pressure maintaining jig according to claim 2, wherein The carrier comprises a carrier plate, three stop blocks and a driving member, the three stop blocks are arranged on three corners of the carrier plate respectively, and a push block is arranged on the remaining corner of the carrier plate, the push block is slidingly arranged relative to the carrier plate and is driven by the driving member to move towards or away from the stop blocks arranged on the opposite corners.

4. The mounting and pressure maintaining jig according to claim 3, wherein The carrier further comprises a buffer, the buffer comprises an intermediate plate, an elastic member and a plurality of cylindrical rods, one end of each of the cylindrical rods is provided with a stopper, the other end of each of the cylindrical rods is connected to the push block, the intermediate plate is sleeved on the cylindrical rods and can move along the cylindrical rods, and the number of the cylindrical rods is at least two.

5. The mounting and pressure maintaining jig according to claim 1, wherein The turnover member comprises a U-shaped plate, a turnover driving member, a rotating shaft and a limiting member, the turnover driving member, the rotating shaft and the limiting member are arranged on the U-shaped plate respectively, and the limiting member can limit the rotating stroke of the rotating shaft.

6. The mounting and pressure maintaining jig according to claim 5, wherein The limiting member comprises a cross beam, a limiting baffle, a limiting mounting plate and a buffer, the cross beam is arranged on the U-shaped plate, the limiting baffle is arranged on the cross beam and above the rotating shaft, the limiting baffle deviates towards one side of the rotating shaft, the buffer is arranged on the limiting baffle, and the limiting mounting plate is arranged on the rotating shaft, when the limiting mounting plate is turned to a vertical posture by the rotating shaft, the limiting mounting plate can abut against the side surface of the limiting baffle, and when the limiting mounting plate is turned to a horizontal posture, one end of the limiting mounting plate abuts against the working end of the buffer.

7. The mounting and pressure maintaining jig according to claim 6, wherein The floating member comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate and the second connecting plate are slidingly connected along an X direction, and the second connecting plate and the third connecting plate are slidingly connected along a Y direction.

8. The mounting and pressure maintaining jig according to claim 7, wherein The holding member comprises a base plate, a circular ring-shaped pressing plate, a guide pin and a limiting block, the base plate is arranged on the first connecting plate, the pressing plate is arranged on the base plate, the pressing plate and the base plate are concentrically arranged, and the outer diameter of the pressing plate is not less than that of the base plate.

9. The mounting and pressure maintaining jig according to claim 8, wherein The mounting and holding fixture further comprises a housing, one side of the housing is provided with an opening, and a safety light curtain is arranged on the opening side of the housing.

10. The mounting and pressure maintaining jig according to claim 1, wherein The machine table is provided with a start button, an emergency stop button and casters.

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