Six-dimensional adjustment accurate positioning pressure maintaining mechanism

Abstract

The invention discloses a six-dimensional adjustment accurate positioning pressure maintaining mechanism which comprises a six-dimensional adjustment assembly, a secondary fine adjustment assembly, an assembly part clamping tool, a mounting plate and a pressure maintaining structure, the pressure maintaining structure is arranged, and the distance between four pressure maintaining rod structures is controlled through a first driving structure and a second driving structure; by arranging the four pressure maintaining rod structures, the four pressure maintaining rod structures adapt to bonding pieces with different lengths and widths, pressure maintaining operation can be conveniently conducted on the bonding pieces with different lengths and widths through the pressing block, the lower side of the connecting block is in threaded connection with the pressing block, dismounting, mounting and replacing of the pressing block are facilitated, the four pressure maintaining rod structures can conduct pressure maintaining on the bonding pieces through the arranged pressure maintaining rod structures, and the bonding pieces are not prone to being damaged. And the effect of ensuring the pressure accuracy and consistency is achieved, the pressure maintaining and attaching effect of the bonded part is facilitated, and the applied pressure can be conveniently adjusted according to needs.

Description

Technical Field

[0001] The invention relates to the field of precision engineering, and in particular to a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism. Background Art

[0002] In the field of precision engineering, accurate positioning and pressure holding of workpieces or tools are crucial. With the development of technology, various high-precision positioning and pressure holding devices have emerged, such as precision positioning tables and six-axis robots. These devices can provide high-precision positioning and pressure holding functions.

[0003] The announcement number CN111188820B discloses a "pressure-holding tooling for product bonding and pressure-holding", which includes a base and a pressure head; the base is provided with a contour fixing structure for carrying and fixing the product to be pressure-held, an elastic driving mechanism for driving the pressure head to move to the bonding position of the product to be pressure-held for pressure-holding, and a driving buffer mechanism for limiting the driving speed of the elastic driving mechanism to reduce the impact force of the pressure head on the product to be pressure-held. The driving buffer mechanism is used to limit the driving speed of the elastic driving mechanism to reduce the movement speed of the pressure head and reduce the impact force of the pressure head on the product to be pressure-held; although the impact force is buffered, the final pressure-holding force of the pressure head on the product to be pressure-held remains unchanged within the specified pressure-holding time, thereby avoiding damage to the product due to excessive impact force;

[0004] Although the above-mentioned pressure-maintaining tooling for product bonding and pressure-maintaining has certain advantages in reducing the impact force of the pressure head, using a single pressure head to apply pressure to the workpiece can easily cause uneven pressure. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism.

[0006] The present invention is achieved in this way: a precise positioning and pressure-maintaining mechanism for six-dimensional adjustment is constructed, the device comprises a six-dimensional adjustment component, a secondary fine-tuning component, an assembly part clamping tool, a mounting plate and a pressure-maintaining structure, the upper side of the six-dimensional adjustment component is mounted with a secondary fine-tuning component, the middle part of the secondary fine-tuning component is provided with an assembly part clamping tool, the upper end face of the six-dimensional adjustment component is mounted with a mounting plate, the left side of the upper end face of the mounting plate is mounted with a pressure-maintaining structure, the pressure-maintaining structure comprises a mounting frame, a first electric push rod, a first shell, a rectangular groove, a first driving structure and a pressure-maintaining rod structure, the first electric push rod is mounted on the left side of the upper end face of the mounting frame, the push rod end of the first electric push rod extends out of the mounting frame and is fixedly connected to the first shell, a rectangular groove is provided in the middle part of the lower end face of the first shell, the first driving structure is mounted on the front side of the right end face of the first shell, the first driving structure is penetrated by the pressure-maintaining rod structure, and the lower end face of the mounting frame is fixedly connected to the mounting plate.

[0007] Preferably, the first driving structure includes a first motor, a first bidirectional screw, a first limiting rod, a sliding plate, a sliding groove and a second driving structure, the output end of the first motor extends into the first housing and is transmission-connected to one end of the first bidirectional screw, and the other end of the bidirectional screw is rotationally connected to the inner wall of the first housing through a bearing, a first limiting rod is provided on the rear side of the bidirectional screw, and the left and right ends of the first limiting rod are fixedly connected to the inner wall of the first housing, sliding plates are penetrated on the left and right sides of the bidirectional screw and the first limiting rod, and the inner wall of the sliding plate is threadedly connected to the bidirectional screw, a sliding groove is provided in the middle of the sliding plate, and a second driving structure is provided on the lower side of the sliding plate, and the first motor is mounted on the upper side of the right end surface of the first housing.

[0008] Preferably, the pressure maintaining rod structure includes a movable rod, a slot, a support plate, a second electric push rod, a movable plate, a detection structure and a connecting block. A slot is opened in the middle part of the lower end surface of the movable rod, a support plate is installed at the bottom of the left end surface of the movable rod, and a second electric push rod is installed on the upper end surface of the support plate. The push rod end of the second electric push rod extends out of the support plate and is fixedly connected to the movable plate. The right side of the movable plate is connected to the detection structure, and a connecting block is installed on the lower end surface of the detection structure. The upper side of the movable rod slides with the inner wall of the sliding groove.

[0009] Preferably, the second driving structure includes a second motor, a second bidirectional screw, a nut, a connecting plate and a second limiting rod, the output end of the second motor extends into the first housing and is transmission-connected to one end of the second bidirectional screw, and the other end of the second bidirectional screw is rotatably connected to the inner wall of the first housing through a bearing, the front and rear sides of the second bidirectional screw are both provided with nuts, a connecting plate is welded on the left side of the nut, the left side of the connecting plate is penetrated by the second limiting rod, the front and rear ends of the second limiting rod are fixedly connected to the inner wall of the first housing, the second motor is installed on the lower side of the rear end surface of the first housing, and the left and right sides of the connecting plate are penetrated by movable rods.

[0010] Preferably, the detection structure includes a second shell, a pressure sensor, a spring, a limit block and a straight rod. A pressure sensor is arranged on the inner lower side of the second shell. The upper end surface of the pressure sensor is elastically connected to the limit block through a spring. A straight rod is installed on the upper end surface of the limit block. The upper side of the straight rod extends out of the second shell and slides with the inner wall of the slot.

[0011] Preferably, a pressing block is threadably mounted on the lower side of the connecting block.

[0012] Preferably, the first bidirectional screw and the first limiting rod are parallel to each other, and the second bidirectional screw and the second limiting rod are parallel to each other.

[0013] Preferably, the outer wall of the connecting plate is smooth.

[0014] Preferably, the outer wall of the pressure sensor is in contact with the inner wall of the second housing.

[0015] Preferably, the straight rod is sleeved on the inner wall of the movable plate.

[0016] The present invention has the following advantages: The present invention provides a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism through improvement, which has the following improvements compared with the same type of equipment:

[0017] The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism described in the present invention has a pressure-maintaining structure, and controls the spacing of four pressure-maintaining rod structures through a first driving structure and a second driving structure, so that the four pressure-maintaining rod structures can adapt to adhesives of different lengths and widths, making it convenient for the pressure block to perform pressure-maintaining operations on adhesives of different lengths and widths. The lower side of the connecting block is threadedly connected to the pressure block, which is conducive to disassembly, assembly and replacement of the pressure block.

[0018] The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism described in the present invention, by setting up a pressure-maintaining rod structure, four groups of pressure-maintaining rod structures can maintain pressure on the adhesive, thereby achieving the effect of ensuring pressure accuracy and consistency, which is beneficial to the pressure-maintaining and fitting effect of the adhesive and facilitates the adjustment of the applied pressure according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the pressure-maintaining structure of the present invention;

[0021] Figure 3 is a top view of the first driving structure of the present invention;

[0022] Figure 4 is a front view of the first driving structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the pressure-maintaining rod of the present invention;

[0024] Figure 6 is a top view of the second driving structure of the present invention;

[0025] Figure 7 It is a schematic diagram of the detection structure of the present invention.

[0026] Among them: six-dimensional adjustment component-1, secondary fine-tuning component-2, assembly clamping tool-3, mounting plate-4, pressure-maintaining structure-5, mounting frame-51, first electric push rod-52, first shell-53, rectangular groove-54, first driving structure-55, pressure-maintaining rod structure-56, first motor-551, first bidirectional screw-552, first limit rod-553, sliding plate-554, sliding groove-555, second driving structure-556, movable rod-5 61. slot 562, support plate 563, second electric push rod 564, moving plate 565, detection structure 566, connecting block 567, pressure block 568, second motor 5561, second bidirectional screw 5562, nut 5563, connecting plate 5564, second limiting rod 5565, second housing 5661, pressure sensor 5662, spring 5663, limiting block 5664, straight rod 5665. DETAILED DESCRIPTION

[0027] The following will be combined with the attached Figure 1-7 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-2 A six-dimensionally adjustable precise positioning and pressure-maintaining mechanism of the present invention comprises a six-dimensional adjustment component 1, a secondary fine-tuning component 2, an assembly clamping tool 3, a mounting plate 4 and a pressure-maintaining structure 5. The secondary fine-tuning component 2 is installed on the upper side of the six-dimensional adjustment component 1. The six-dimensional adjustment component 1 is a precise mechanical device, which can provide an adjustment function of six degrees of freedom, perform position adjustment in the three axes of X, Y and Z, and support adjustment of the three angles of pitch, yaw and roll. The secondary fine-tuning component 2 is composed of an outer frame and six groups of fine-tuning electric push rods. The assembly clamping tool 3 is slightly adjusted by the extension and retraction of the six groups of fine-tuning electric push rods. The assembly clamping tool 3 is provided in the middle of the secondary fine-tuning component 2. A mounting plate 4 is installed on the upper end surface of the six-dimensional adjustment component 1, and a pressure-maintaining structure 5 is installed on the left side of the upper end surface of the mounting plate 4. The pressure-maintaining structure 5 includes a mounting frame 51, a first electric push rod 52, a first shell 53, a rectangular groove 54, a first driving structure 55 and a pressure-maintaining rod structure 56. The first electric push rod 52 is installed on the left side of the upper end surface of the mounting frame 51, and the push rod end of the first electric push rod 52 extends out of the mounting frame 51 and is fixedly connected to the first shell 53. A rectangular groove 54 is opened in the middle part of the lower end surface of the first shell 53, and a first driving structure 55 is installed on the front side of the right end surface of the first shell 53. The first driving structure 55 is penetrated by the pressure-maintaining rod structure 56, and the lower end surface of the mounting frame 51 is fixedly connected to the mounting plate 4.

[0029] See also Figure 3-4 , a six-dimensional adjustable precise positioning and pressure-maintaining mechanism of the present invention, the first driving structure 55 includes a first motor 551, a first bidirectional screw 552, a first limiting rod 553, a sliding plate 554, a sliding groove 555 and a second driving structure 556, the output end of the first motor 551 extends into the first housing 53 and is transmission-connected with one end of the first bidirectional screw 552, and the other end of the bidirectional screw 552 is rotationally connected to the inner wall of the first housing 53 through a bearing, a first limiting rod 553 is arranged at the rear side of the bidirectional screw 552, and the left and right ends of the first limiting rod 553 are fixedly connected to the inner wall of the first housing 53, the left and right sides of the bidirectional screw 552 and the first limiting rod 553 are penetrated by sliding plates 554, and the inner wall of the sliding plate 554 is threadedly connected to the bidirectional screw 552, a sliding groove 555 is opened in the middle of the sliding plate 554, and a second driving structure 556 is arranged at the lower side of the sliding plate 554, and the first motor 551 is installed on the upper side of the right end surface of the first housing 53.

[0030] See also Figure 5 , a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism of the present invention, the pressure-maintaining rod structure 56 includes a movable rod 561, a slot 562, a support plate 563, a second electric push rod 564, a movable plate 565, a detection structure 566 and a connecting block 567. A slot 562 is provided in the middle of the lower end surface of the movable rod 561, a support plate 563 is installed at the bottom of the left end surface of the movable rod 561, and a second electric push rod 564 is installed on the upper end surface of the support plate 563. The push rod end of the second electric push rod 564 extends out of the support plate 563 and is fixedly connected to the movable plate 565. The right side of the movable plate 565 is connected to the detection structure 566, and a connecting block 567 is installed on the lower end surface of the detection structure 566. The upper side of the movable rod 561 is slidably matched with the inner wall of the sliding groove 555, and a pressing block 568 is installed on the lower side of the connecting block 567 through a thread, which is convenient for disassembly, assembly and replacement of the pressing block 568.

[0031] See also Figure 6The present invention provides a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, wherein the second driving structure 556 comprises a second motor 5561, a second bidirectional screw 5562, a nut 5563, a connecting plate 5564 and a second limiting rod 5565. The output end of the second motor 5561 extends into the first housing 53 and is transmission-connected with one end of the second bidirectional screw 5562, and the other end of the second bidirectional screw 5562 is rotationally connected with the inner wall of the first housing 53 through a bearing. Nuts 5563 are mounted on both the front and rear sides of the second bidirectional screw 5562, and a connecting plate 5564 is welded on the left side of the nut 5563. The connecting plate 5564 The left side is penetrated by the second limiting rod 5565, the front and rear ends of the second limiting rod 5565 are fixedly connected to the inner wall of the first shell 53, the second motor 5561 is installed on the lower side of the rear end surface of the first shell 53, the left and right sides of the connecting plate 5564 are penetrated by the movable rod 561, the first bidirectional screw 552 and the first limiting rod 553 are parallel to each other, the second bidirectional screw 5562 and the second limiting rod 5565 are parallel to each other, which is conducive to driving the sliding plate 554 and the connecting plate 5564 to move smoothly, and the outer wall of the connecting plate 5564 is smoothly set to facilitate the movable rod 561 to slide along the connecting plate 5564.

[0032] See also Figure 7 The present invention provides a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, wherein the detection structure 566 comprises a second housing 5661, a pressure sensor 5662, a spring 5663, a limit block 5664 and a straight rod 5665. The pressure sensor 5662 is arranged on the lower inner side of the second housing 5661. The model of the pressure sensor 5662 is CSF-F4. The upper end surface of the pressure sensor 5662 is elastically connected to the limit block 5664 through the spring 5663. The upper end surface of the limit block 5664 is provided with a straight rod 5665. 65. The upper side of the straight rod 5665 extends out of the second housing 5661 and slides with the inner wall of the slot 562. The outer wall of the pressure sensor 5662 fits with the inner wall of the second housing 5661, which helps to improve the overall stability of the pressure sensor 5662 and the second housing 5661 and reduce the displacement or damage of the pressure sensor 5662 caused by vibration or impact. The straight rod 5665 is sleeved on the inner wall of the movable plate 565, so that the second electric push rod 564 can drive the straight rod 5665 to move through the movable plate 565.

[0033] The present invention provides a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism through improvement, and its working principle is as follows;

[0034] First, when using this device, first place the device in the working area, and then connect the device to an external power source to provide the device with the power required for operation;

[0035] Second, by installing the adhesive on the assembly clamping fixture 3, the assembly clamping fixture 3 is accurately positioned using the six-position adjustment component 1 and the secondary fine-tuning component 2, so as to facilitate the subsequent bonding of the adhesive to the glass microcrystal;

[0036] Third, the first motor 551 is controlled to operate, and the output end of the first motor 551 drives the first bidirectional screw 552 to rotate. The first bidirectional screw 552 uses the first limiting rod 553 to limit the sliding plate 554, so that the first bidirectional screw 552 drives the sliding plate 554 to slide, and the sliding plate 554 drives the movable rod 561 of the pressure-maintaining rod structure 56 to move through the sliding groove 555. Since the movable rod 561 is penetrated by the connecting plate 5564, the movable rod 561 slides along the connecting plate 5564;

[0037] Fourth, the second motor 5561 is controlled to operate, the output end of the second motor 5561 drives the second bidirectional screw 5562 to rotate, the second bidirectional screw 5562 drives the nut 5563 to move, the nut 5563 drives the connecting plate 5564 to move, and the connecting plate 5564 drives the movable rod 561 to move under the limit of the second limit rod 5565, so as to achieve the effect of adjusting the spacing between the movable rods 561, so as to facilitate the pressure block 568 to perform pressure-maintaining operation on adhesives of different lengths and widths, and to facilitate flexible positioning and pressure application. Since the lower side of the connecting block 567 is threadedly connected to the pressing block 568, the pressing block 568 is easily disassembled and replaced.

[0038] Fifth, the first electric push rod 52 is controlled to extend, and the push rod end of the first electric push rod 52 drives the housing 53 to move downward, and the housing 53 drives the first transmission structure 55 and the pressure-maintaining rod structure 56 to move downward, and the pressing blocks 568 of the four groups of pressure-maintaining rod structures 56 are pressed downward to fit with the adhesive, and the adhesive is bonded to the glass microcrystals. When pressed downward, due to the force, the second housing 5661 moves upward, so that the limit block 5664 pushes the spring 5663 to make the spring 5663 contract, and then the pressure sensor 5662 is squeezed by the resilience of the spring 5663, and the pressure sensor 5662 detects the pressure size;

[0039] Sixth, when the detection pressure of one of the four groups of pressure sensors 5662 reaches a preset value, the operation of the first electric push rod 52 is stopped, and the second electric push rods 564 of the remaining three groups of pressure maintaining rod structures 56 are extended, and the straight rod 5665 is driven to move downward through the movable plate 565, and the straight rod 5665 slides along the slot 562, and the straight rod 5665 squeezes the spring 5663 again through the limit block 5664, so that the four groups of pressure blocks 568 apply consistent pressure to the adhesive, which is beneficial to the pressure-maintaining and fitting effect of the adhesive, and achieves the effect of ensuring pressure accuracy and consistency, and is convenient for adjusting the applied pressure according to needs.

[0040] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, comprising a six-dimensionally adjustable component (1), a secondary fine-tuning component (2) and an assembly part clamping tool (3), wherein the secondary fine-tuning component (2) is installed on the upper side of the six-dimensionally adjustable component (1), and the assembly part clamping tool (3) is arranged in the middle of the secondary fine-tuning component (2); Features: It also includes a mounting plate (4) and a pressure-maintaining structure (5). The upper end surface of the six-dimensional adjustment component (1) is mounted with a mounting plate (4). The left side of the upper end surface of the mounting plate (4) is mounted with a pressure-maintaining structure (5). The pressure-maintaining structure (5) includes a mounting frame (51), a first electric push rod (52), a first shell (53), a rectangular groove (54), a first driving structure (55) and a pressure-maintaining rod structure (56). The left side of the upper end surface of the mounting frame (51) is mounted with a first electric push rod (52). The push rod end of the first electric push rod (52) extends out of the mounting frame (51) and is fixedly connected to the first shell (53). A rectangular groove (54) is provided in the middle of the lower end surface of the first shell (53). The first driving structure (55) is mounted on the front side of the right end surface of the first shell (53). The first driving structure (55) is penetrated by the pressure-maintaining rod structure (56). The lower end surface of the mounting frame (51) is fixedly connected to the mounting plate (4).

2. According to claim 1, a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, characterized in that: The first driving structure (55) comprises a first motor (551), a first bidirectional screw (552), a first limiting rod (553), a sliding plate (554), a sliding groove (555) and a second driving structure (556); the output end of the first motor (551) extends into the first housing (53) and is transmission-connected to one end of the first bidirectional screw (552); the other end of the bidirectional screw (552) is rotationally connected to the inner wall of the first housing (53) via a bearing; the rear side of the bidirectional screw (552) is provided with a first limiting rod (553). ), and the left and right ends of the first limiting rod (553) are fixedly connected to the inner wall of the first shell (53), the left and right sides of the bidirectional screw (552) and the first limiting rod (553) are penetrated by sliding plates (554), and the inner wall of the sliding plate (554) is threadedly connected to the bidirectional screw (552), a sliding groove (555) is opened in the middle of the sliding plate (554), and a second driving structure (556) is arranged on the lower side of the sliding plate (554), and the first motor (551) is installed on the upper side of the right end surface of the first shell (53).

3. According to claim 1, a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, characterized in that: The pressure-maintaining rod structure (56) comprises a movable rod (561), a slot (562), a support plate (563), a second electric push rod (564), a movable plate (565), a detection structure (566) and a connecting block (567). A slot (562) is provided in the middle of the lower end surface of the movable rod (561). A support plate (563) is installed at the bottom of the left end surface of the movable rod (561). The second electric push rod (564) is installed on the upper end surface of the support plate (563). The push rod end of the second electric push rod (564) extends out of the support plate (563) and is fixedly connected to the movable plate (565). The right side of the movable plate (565) is connected to the detection structure (566). A connecting block (567) is installed on the lower end surface of the detection structure (566). The upper side of the movable rod (561) is slidably matched with the inner wall of the sliding groove (555).

4. According to claim 2, a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, characterized in that: The second driving structure (556) comprises a second motor (5561), a second bidirectional screw (5562), a nut (5563), a connecting plate (5564) and a second limiting rod (5565); the output end of the second motor (5561) extends into the first housing (53) and is transmission-connected to one end of the second bidirectional screw (5562); the other end of the second bidirectional screw (5562) is rotationally connected to the inner wall of the first housing (53) via a bearing; the second bidirectional screw (5561) is connected to the first housing (53) and the second bidirectional screw (5562) is rotationally connected to the inner wall of the first housing (53) via a bearing; The front and rear sides of the first housing (53) are both provided with nuts (5563), and a connecting plate (5564) is welded on the left side of the nut (5563). The left side of the connecting plate (5564) is penetrated by a second limiting rod (5565). The front and rear ends of the second limiting rod (5565) are fixedly connected to the inner wall of the first housing (53). The second motor (5561) is installed on the lower side of the rear end surface of the first housing (53), and the left and right sides of the connecting plate (5564) are both penetrated by the movable rod (561).

5. According to claim 3, a six-dimensionally adjustable precise positioning and pressure-maintaining mechanism, characterized in that: The detection structure (566) includes a second shell (5661), a pressure sensor (5662), a spring (5663), a limit block (5664) and a straight rod (5665). The pressure sensor (5662) is arranged on the lower inner side of the second shell (5661). The upper end surface of the pressure sensor (5662) is elastically connected to the limit block (5664) via the spring (5663). The upper end surface of the limit block (5664) is installed with a straight rod (5665). The upper side of the straight rod (5665) extends out of the second shell (5661) and is slidably matched with the inner wall of the slot (562).

6. The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism according to claim 3, characterized in that: A pressing block (568) is installed on the lower side of the connecting block (567) via threads.

7. The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism according to claim 4, characterized in that: The first bidirectional screw rod (552) and the first limiting rod (553) are parallel to each other, and the second bidirectional screw rod (5562) and the second limiting rod (5565) are parallel to each other.

8. The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism according to claim 4, characterized in that: The outer wall of the connecting plate (5564) is smoothly arranged.

9. The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism according to claim 5, characterized in that: The outer wall of the pressure sensor (5662) is in contact with the inner wall of the second housing (5661).

10. The six-dimensionally adjustable precise positioning and pressure-maintaining mechanism according to claim 5, characterized in that: The straight rod (5665) is sleeved on the inner wall of the movable plate (565).

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