Pressure maintaining mechanism and machining equipment

Abstract

The embodiment of the utility model relates to the technical field of automatic machining, and provides a pressure maintaining mechanism and machining equipment. The pressure maintaining mechanism comprises a supporting assembly, a driving assembly and a pressure head assembly. The driving assembly is installed on the supporting assembly. The pressing head assembly is slidably connected to the supporting assembly and connected to the driving assembly. The driving assembly is used for driving the pressure head assembly to get close to or away from the to-be-pressure-maintained workpiece. The pressure head assembly comprises a pressure head, an elastic piece and a pressure sensor. The elastic piece is connected between the driving assembly and the pressing head. The pressing head is used for pressing the workpiece. The elastic piece is used for deforming in the process that the driving assembly drives the pressing head to downwards press the workpiece so as to adjust the pressure applied by the pressing head to the workpiece. The pressure sensor is arranged between the elastic piece and the pressing head and used for detecting the pressure applied to the workpiece by the pressing head. According to the pressure maintaining mechanism, the pressure maintaining pressure on the workpiece can be adjusted, and damage to the workpiece is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic processing, in particular to a pressure maintaining mechanism and a processing device. BACKGROUND

[0002] In the assembly process of products such as electronic devices (e.g. mobile phones), it is often necessary to maintain a certain pressure at the bonding part of the product, that is, to maintain pressure, so as to reduce the assembly gap and meet the sealing, waterproof, dustproof and dimensional accuracy requirements of the product. The traditional manual pressure maintaining cannot adjust the pressure of pressure maintaining, and when the pressure is too large, it is easy to cause damage to the product. CONTENT OF THE UTILITY MODEL

[0003] In view of the above situation, it is necessary to provide a pressure maintaining mechanism and a processing device to solve the problem that the pressure of pressure maintaining cannot be adjusted in the related art.

[0004] The first aspect of the present application provides a pressure maintaining mechanism. The pressure maintaining mechanism comprises a support assembly, a driving assembly and a pressure head assembly. The driving assembly is installed on the support assembly. The pressure head assembly is slidingly connected to the support assembly and connected to the driving assembly. The driving assembly is used to drive the pressure head assembly to approach or move away from a workpiece to be maintained. The pressure head assembly comprises a pressure head, an elastic member and a pressure sensor. The pressure head is used to press the workpiece. The elastic member is connected between the driving assembly and the pressure head, and is used to deform in the process of driving the pressure head to press down to the workpiece, so as to adjust the pressure applied by the pressure head to the workpiece. The pressure sensor is arranged between the elastic member and the pressure head, and is used to detect the pressure of the pressure head pressing the workpiece.

[0005] In the pressure maintaining mechanism, the elastic member is connected between the driving assembly and the pressure head. When the driving assembly drives the pressure head to press down to the workpiece, the elastic member will deform. This deformation process enables the elastic member to absorb part of the pressure, so that the pressure head can flexibly maintain pressure on the workpiece. Moreover, the pressure sensor is arranged between the elastic member and the pressure head, which can detect the pressure applied by the pressure head to the workpiece in real time, which is conducive to ensuring that the pressure applied by the pressure head is always within the set range. In addition, the driving assembly is installed on the support assembly, and the pressure head assembly is slidingly connected to the support assembly and connected to the driving assembly. This design ensures the stability and accuracy of the pressure head assembly during movement. The driving assembly can accurately control the displacement of the pressure head assembly approaching or moving away from the workpiece, and in cooperation with the deformation of the elastic member and the feedback of the pressure sensor, the accurate control of the applied pressure is realized. In summary, by adjusting the pressure through the deformation of the elastic member, the real-time monitoring feedback of the pressure sensor and the accurate control of the driving assembly and the pressure head assembly, the pressure maintaining mechanism realizes the adjustability and accurate control of the pressure of pressure maintaining, and solves the problem that the pressure of pressure maintaining cannot be adjusted in the traditional technology.

[0006] In some embodiments, the support assembly comprises a mounting frame and a guide rail, and the guide rail is mounted on the mounting frame. The driving assembly comprises a cylinder, and the cylinder is mounted on the mounting frame. The pressure head assembly further comprises a connecting piece, and the elastic piece is connected to the mounting frame through the connecting piece and indirectly connected to the cylinder.

[0007] In some embodiments, the driving assembly further comprises a movable plate connected with the cylinder. The elastic piece is a spring, and the connecting piece comprises a connecting plate, a cover plate, a spring pressing block, a spring stand and a spring mounting block. The connecting plate is connected with the guide rail in a sliding manner and connected with the movable plate. The cover plate is connected with the connecting plate, one end of the spring stand is connected with the cover plate, and the other end is connected with the spring mounting block through the spring pressing block, the spring is sleeved outside the spring stand and located between the spring pressing block and the spring mounting block. The pressure sensor is located between the spring mounting block and the pressure head.

[0008] In some embodiments, the pressure head assembly further comprises a spring adjusting screw connected with the cover plate and the spring pressing block, so as to adjust the pre-tightening force of the spring.

[0009] In some embodiments, the pressure head assembly further comprises a middle block, a bottom block, a sensor mounting block and a pressure head mounting block. The middle block is located between the cover plate and the bottom block and connected with the cover plate and the bottom block respectively. The sensor mounting block, the pressure head mounting block and the pressure head are sequentially arranged on the side of the pressure sensor away from the elastic piece. The pressure sensor is mounted on the sensor mounting block. The pressure head is mounted on the pressure head mounting block. The middle block has a hollow first accommodating space, and the spring pressing block, the spring, the spring stand, the spring mounting block, the pressure sensor and the sensor mounting block are located in the first accommodating space. The bottom block has a hollow second accommodating space, and the pressure head mounting block is located in the second accommodating space, and the pressure head is exposed outside the bottom block.

[0010] In some embodiments, the connecting piece further comprises a support plate, and the support plate is located at opposite sides of the middle block in a spaced manner and connected with the connecting plate and the cover plate respectively.

[0011] In some embodiments, the pressure head assembly further comprises a ball bushing, and the ball bushing passes through the middle block, one end of the ball bushing is connected with the cover plate, and the other end of the ball bushing is connected with the pressure head mounting block.

[0012] In some embodiments, the driving assembly further comprises a buffer connected with the movable plate; and / or, the driving assembly further comprises a cylinder sensor connected with the cylinder and used for detecting the stroke of the cylinder; and / or, the driving assembly further comprises a limiting piece connected with the movable plate and used for limiting the displacement of the cylinder movement.

[0013] In some embodiments, the support assembly further comprises a positioning pin connected to the mounting frame and used for positioning the guide rail.

[0014] The second aspect of the present application provides a processing device. The processing device comprises a conveying mechanism and the pressure maintaining mechanism of the first aspect of the present application. The conveying mechanism is configured to convey a workpiece to be pressure maintained to the pressure maintaining mechanism.

[0015] The processing device of the second aspect of the present application has at least the same advantages as the pressure maintaining mechanism of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application.

[0017] Figure 2 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application. Figure 1 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application.

[0018] Figure 3 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application. Figure 1 An exploded schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application.

[0019] Figure 4 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application. Figure 3 A structural schematic diagram of the pressure maintaining mechanism according to an embodiment of the present application.

[0020] Explanation of main element symbols:

[0021]

[0022]

[0023] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary and are used to explain the embodiments of the present application, and cannot be understood as limiting the present application.

[0025] In the description of the embodiments of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the embodiments of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In the description of the embodiments of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features.

[0027] In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specified.

[0028] In the description of the embodiments of the present application, unless otherwise specified, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements.

[0029] For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Figure 1 The structure schematic diagram of the pressure maintaining mechanism 100 of an embodiment of the present application. The pressure maintaining mechanism 100 is used for maintaining pressure on a workpiece. As shown in the figure, Figure 1 The pressure maintaining mechanism 100 includes a support assembly 10, a driving assembly 20 and a pressure head assembly 30. The driving assembly 20 is mounted on the support assembly 10. The pressure head assembly 30 is slidingly connected to the support assembly 10 and connected to the driving assembly 20. The driving assembly 20 is used to drive the pressure head assembly 30 to approach or move away from the workpiece to be maintained. The pressure head assembly 30 is used to press against the workpiece to be maintained to maintain the pressure on the workpiece.

[0031] For the convenience of description, the direction in which the driving assembly 20 drives the pressure head assembly 30 to move is also called the first direction D1, or the up-down direction.

[0032] Specifically, the support assembly 10 includes a mounting frame. The mounting frame includes a base 11, a base plate 12, a rib plate 13 and a vertical plate 14.

[0033] The base plate 12 and the vertical plate 14 are connected on the same side of the base 11. The base 11 is generally a hollow cuboid. The size of the base plate 12 is comparable to the size of the top of the base 11. The vertical plate 14 is generally in the shape of a mouth. Two rib plates 13 are arranged at intervals along the second direction D2. The second direction D2 is perpendicular to the first direction D1. Two right angle edges of each rib plate 13 are connected with the base plate 12 and the vertical plate 14 respectively, so as to improve the connection stability of the vertical plate 14 and the base 11.

[0034] The support assembly 10 also includes guide rails 15 and positioning pins 16. There are two guide rails 15. The two guide rails 15 are spaced apart along the second direction D2. Each guide rail 15 is connected to the side of the upright plate 14 opposite to the rib plate 13. Alternatively, the guide rails 15 and the upright plate 14 are located on opposite sides of the rib plate 13 along the third direction D3. The third direction D3 is perpendicular to the first direction D1 and the second direction D2, respectively.

[0035] There are two pairs of locating pins 16. Each locating pin 16 is mounted on the upright plate 14 of the mounting bracket. Each pair of locating pins 16 corresponds to one guide rail 15, and the pair of locating pins 16 corresponding to the same guide rail 15 are spaced apart along the first direction D1. Each pair of locating pins 16 is used to limit the offset of the corresponding guide rail 15 in the second direction D2, so as to position the guide rail 15.

[0036] In other embodiments, the number and distribution of ribs 13, the number and distribution of guide rails 15, and the number and distribution of positioning pins 16 are not limited to those described above.

[0037] In other embodiments, one or more components in the mounting bracket described above may be omitted or their structure may be modified, as long as the mounting rail 15 and drive assembly 20 can be installed.

[0038] The drive assembly 20 includes a cylinder 21, a cylinder mounting plate 22, and a cylinder sensor 23. Specifically, the cylinder mounting plate 22 is connected to the side of the upright plate 14 opposite to the base 11. The cylinder 21 is connected to the support assembly 10 via the cylinder mounting plate 22. The cylinder sensor 23 is connected to the cylinder 21 and is used to detect the stroke of the cylinder 21.

[0039] Figure 2 for Figure 1 A schematic diagram of the pressure-holding mechanism 100 from another perspective. (See diagram below.) Figure 2 As shown, the drive assembly 20 also includes a hydraulic damper 24, a limiting member 25, and a movable plate 26. The movable plate 26 connects the output end of the cylinder 21 and the pressure head assembly 30 to drive the cylinder 21 to move the pressure head assembly 30 along a first direction D1. The hydraulic damper 24 and the limiting member 25 are spaced apart and connected to the movable plate 26. The limiting member 25 limits the displacement of the cylinder 21.

[0040] During the downward pressing of cylinder 21, hydraulic buffer 24 and limiter 25 are used for limiting, which helps to achieve a combination of soft and hard limiting.

[0041] In other embodiments, the hydraulic buffer 24 may be replaced with other types of buffers, such as pneumatic buffers, spring buffers, hydraulic buffers, etc.

[0042] In this embodiment, the limiting member 25 is a stud. In other embodiments, the limiting member 25 can be replaced with other limiting members that can limit the displacement of the cylinder 21.

[0043] Please refer to it again. Figure 1 The pressure head assembly 30 includes a connecting plate 31, a support plate 32, a cover plate 331, a middle block 332, and a bottom block 333.

[0044] The connecting plate 31 is slidably connected to the guide rail 15 of the support assembly 10. The connecting plate 31 is also fixedly connected to the movable plate 26 of the drive assembly 20. Thus, under the drive of the drive assembly 20, the pressure head assembly 30 can move up and down along the guide rail 15, thereby approaching or moving away from the workpiece to be pressured.

[0045] There are two support plates 32. The two support plates 32 are spaced apart along the second direction D2 and connected to the side of the connecting plate 31 opposite to the guide rail 15.

[0046] The cover plate 331 is connected above the two support plates 32. The middle block 332 is located between the cover plate 331 and the bottom block 333, and is connected to both the cover plate 331 and the bottom block 333 respectively. The two support plates 32 are spaced apart on opposite sides of the middle block 332.

[0047] Figure 3 for Figure 1 Exploded view of the pressure holding mechanism 100. Figure 4 for Figure 3 A partial structural diagram of the pressure-holding mechanism 100. Specifically, Figure 4 The middle block 332 and the bottom block 333 are omitted. Please refer to the relevant documentation. Figure 3 and Figure 4 The pressure head assembly 30 also includes a spring pressure block 341, a spring 342, a spring upright 343, a spring mounting block 344, and a spring adjusting screw 345.

[0048] The middle block 332 is a hollow first receiving space R1. The spring pressure block 341, spring 342, spring rod 343 and spring mounting block 344 are all located in the first receiving space R1 and can move in the first receiving space R1 in the direction of approaching or moving away from the workpiece to be pressed.

[0049] There are two springs 342 and two spring rods 343. Along the second direction D2, the two springs 342 are spaced apart, and the two spring rods 343 are spaced apart. Each spring 342 is fitted over a corresponding spring rod 343. One end of each spring rod 343 passes through the spring pressure block 341 and connects to the cover plate 331, and the other end connects to the spring mounting block 344.

[0050] The spring adjusting screw 345 connects the cover plate 331 and the spring pressure block 341, and is used to adjust the preload of the spring 342. Understandably, by replacing the spring 342 with a spring of different stiffness, the preload of the spring 342 in the pressure head assembly 30 can also be adjusted.

[0051] Therefore, by selecting springs 342 with different stiffnesses, or by adjusting the preload of springs 342 through spring adjusting screws 345, the degree of deformation of springs 342 can be changed, thereby precisely controlling the pressure applied to the workpiece by the pressure head assembly 30. This allows the pressure holding mechanism 100 to adapt to workpieces of different materials and shapes, improving the versatility and flexibility of the pressure holding mechanism 100.

[0052] In other embodiments, the number and distribution of springs 342 and the number and distribution of spring rods 343 are not limited to those described above.

[0053] In other embodiments, spring 342 may be replaced with other elastic elements, such as bellows, rubber pads, etc.

[0054] The pressure head assembly 30 also includes a pressure sensor 351, a sensor mounting block 352, a pressure head mounting block 361, and a pressure head 362.

[0055] Pressure sensor 351, sensor mounting block 352, pressure head mounting block 361 and pressure head 362 are all located below spring mounting block 344.

[0056] Pressure sensor 351 is located between spring 342 and pressure head 362. Pressure sensor 351 detects the pressure applied by pressure head 362 to the workpiece, which helps ensure that the pressure applied by pressure head 362 is always within a set range, thereby achieving precise pressure control. For example, pressure sensor 351 can transmit the detected pressure data to the control system, which then controls the drive assembly 20, forming a closed loop of pressure control.

[0057] The sensor mounting block 352, the pressure head mounting block 361, and the pressure head 362 are sequentially arranged on the side of the pressure sensor 351 away from the spring 342. The pressure sensor 351 is mounted on the sensor mounting block 352. The pressure head 362 is mounted on the pressure head mounting block 361.

[0058] Pressure sensor 351 and sensor mounting block 352 are both located within the first receiving space R1 of the middle block 332. The bottom block 333 has a hollow second receiving space R2. Pressure head mounting block 361 is located within the second receiving space R2, and both pressure head mounting block 361 and pressure head 362 are exposed from the bottom block 333 (see figure). Figure 2 ).

[0059] The pressure head assembly 30 also includes a ball bushing 37 for guiding the movement of the pressure head 362.

[0060] There are two ball bushings 37, which are spaced apart along the second direction D2. The middle block 332 has two through holes H. Each ball bushing 37 passes through a corresponding through hole H. The opposite ends of each ball bushing 37 are connected to the cover plate 331 and the pressure head mounting block 361, respectively. The arrangement of the ball bushings 37 facilitates the smooth and stable movement of the pressure head assembly 30 in the pressure holding mechanism 100.

[0061] In some embodiments, the pressure head 362 is flexible and its material can be, but is not limited to, SUS304 and TPU70°, to prevent damage to the workpiece.

[0062] In other embodiments, the number and distribution of the ball bushings 37 are not limited to those described above.

[0063] The pressure head assembly 30 also includes a plurality of fasteners 38. The cover plate 331 is connected to the middle block 332 and the support plate 32 via the fasteners 38.

[0064] In the above embodiments, the spring 342 is slidably connected to the support assembly 10 through the connecting plate 31, support plate 32, cover plate 331, spring pressure block 341, spring upright 343, and spring mounting block 344, and is indirectly connected to the drive assembly 20. Therefore, the assembly consisting of the connecting plate 31, support plate 32, cover plate 331, spring pressure block 341, spring upright 343, and spring mounting block 344 is also referred to as a connecting member.

[0065] In other embodiments, one or more of the elements in the above-described connector may be omitted or their structure may be modified, which can enable the spring 342 to be slidably connected to the support assembly 10 and indirectly connected to the drive assembly 20.

[0066] This application also provides an automated or semi-automated processing device (not shown). The processing device includes the aforementioned pressure-holding mechanism 100 and a conveying mechanism (not shown). The conveying mechanism transports the workpiece to be pressure-held to below the pressure head assembly 30. This processing device has at least the same advantages as the aforementioned pressure-holding mechanism 100. Furthermore, the pressure-holding mechanism 100 helps improve the processing quality and efficiency of the processing device, and enhances its adaptability and reliability.

[0067] Specifically, the working process of the pressure holding mechanism 100 is as follows: The conveying mechanism transports the workpiece to be pressure held to the area below the pressure head assembly 30. The cylinder 21 in the drive assembly 20 drives the pressure head assembly 30 to slide down along the guide rail 15 of the support assembly 10, causing the pressure head 362 to press against the area of ​​the workpiece to be pressure held. During the downward pressing process of the pressure head assembly 30, under the pushing action of the pressure head 362, the pressure head mounting block 361, sensor mounting block 352, pressure sensor 351, spring mounting block 344, spring rod 343, ball bushing 37, etc., move upward synchronously, the distance between the cover plate 331 and the pressure head 362 decreases, and the spring 342 is compressed. Thus, the spring 342 absorbs part of the pressure, so that the pressure head 362 can flexibly hold the pressure on the workpiece, or in other words, buffer the pressure holding process. During the pressure holding process, the pressure sensor 351 can sense the pressure on the pressure head 362 in real time to ensure that the pressure on the workpiece meets the requirements. After the workpiece is pressure held, the conveying mechanism moves the workpiece to the next station.

[0068] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A pressure maintaining mechanism characterized by comprising: The application relates to a support assembly, a driving assembly installed on the support assembly, and a pressure head assembly slidingly connected to the support assembly and connected to the driving assembly, wherein the driving assembly is used to drive the pressure head assembly to approach or move away from a workpiece to be pressed; the pressure head assembly comprises a pressure head, an elastic element and a pressure sensor; the pressure head is used to press the workpiece; the elastic element is connected between the driving assembly and the pressure head and is used to deform in the process that the driving assembly drives the pressure head to press the workpiece, so as to adjust the pressure applied by the pressure head to the workpiece; and the pressure sensor is arranged between the elastic element and the pressure head and is used to detect the pressure of the pressure head when pressing the workpiece. The support assembly comprises a mounting frame and a guide rail, wherein the guide rail is installed on the mounting frame; the driving assembly comprises a cylinder, and the cylinder is installed on the mounting frame; the pressure head assembly further comprises a connecting element, and the elastic element is slidingly connected to the mounting frame and indirectly connected to the cylinder through the connecting element. The driving assembly further comprises a movable plate connected with the cylinder; the elastic element is a spring; the connecting element comprises a connecting plate, a cover plate, a spring pressing block, a spring vertical rod and a spring mounting block; the connecting plate is slidingly connected with the guide rail and connected with the movable plate; the cover plate is connected with the connecting plate; one end of the spring vertical rod is connected with the cover plate, and the other end is connected with the spring mounting block through the spring pressing block; the spring is sleeved outside the spring vertical rod and located between the spring pressing block and the spring mounting block; and the pressure sensor is located between the spring mounting block and the pressure head. The pressure head assembly further comprises a spring adjusting screw connected with the cover plate and the spring pressing block, so as to adjust the pre-tightening force of the spring. The pressure head assembly further comprises a middle block, a bottom block, a sensor mounting block and a pressure head mounting block; the middle block is located between the cover plate and the bottom block and connected with the cover plate and the bottom block respectively; the sensor mounting block, the pressure head mounting block and the pressure head are sequentially arranged on the side of the pressure sensor away from the elastic element; the pressure sensor is installed on the sensor mounting block; the pressure head is installed on the pressure head mounting block; the middle block has a hollow first accommodating space, and the spring pressing block, the spring, the spring vertical rod, the spring mounting block, the pressure sensor and the sensor mounting block are located in the first accommodating space; 2. The pressure maintaining mechanism according to claim 1, characterized by, The bottom block has a hollow second accommodating space, and the pressure head mounting block is located in the second accommodating space, and the pressure head is exposed outside the bottom block.

3. The pressure maintaining mechanism according to claim 2, characterized by, The connecting element further comprises a support plate, and the support plate is located on the opposite sides of the middle block and connected with the connecting plate and the cover plate respectively.

4. The pressure maintaining mechanism according to claim 3, characterized by The pressure head assembly further comprises a ball bushing, and the ball bushing passes through the middle block, one end of the ball bushing is connected with the cover plate, and the other end of the ball bushing is connected with the pressure head mounting block.

5. The pressure maintaining mechanism according to claim 3, characterized by ​ ​ 6. The pressure maintaining mechanism according to claim 5, characterized by ​ 7. The pressure maintaining mechanism according to claim 5, characterized by ​ 8. The pressure maintaining mechanism according to any one of claims 3 to 7, characterized in that, The driving assembly further comprises a buffer connected to the movable plate; and / or, the driving assembly further comprises a cylinder sensor connected to the cylinder and used for detecting the stroke of the cylinder; and / or, the driving assembly further comprises a limiting piece connected to the movable plate and used for limiting the displacement of the cylinder movement.

9. The pressure retaining mechanism of any one of claims 2 to 7, wherein, The support assembly further comprises a positioning pin connected to the mounting frame and used for positioning the guide rail.

10. A processing apparatus characterized by comprising: The method comprises: a conveying mechanism; and the pressure maintaining mechanism according to any one of claims 1 to 9; wherein the conveying mechanism is used for conveying the workpiece to be pressure maintained to the pressure maintaining mechanism.

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