Adjustable man-machine workstation

Abstract

This invention discloses an adjustable human-machine interface, comprising a support assembly, an upper support plate, and an upper support plate drive structure for driving the upper support plate to rotate. The support assembly includes a support plate, a top plate and a column located above the support plate, with the bottom end of the column connected to the support plate and the top end of the column connected to the top plate. The upper support plate drive structure includes an upper support plate motor connected to the support plate, a lead screw connected to the upper support plate motor, a translation plate, a slider sleeved on the lead screw, a swing arm connected to the upper support plate, and a slider locking structure, with the slider locking structure located between the lead screw and the slider. The lead screw passes through the translation plate and connects to the top plate. The slider and the lead screw are threaded together. The slider is connected to the swing arm. The upper support plate is connected to the translation plate via a hinge. The upper support plate motor drives the lead screw to rotate, and simultaneously the lead screw drives the slider to move up and down. The slider drives the upper support plate to rotate around the hinge via the swing arm. This invention, using the above structure, achieves adjustment of the tilt angle and height position of the upper support plate, with self-locking stability and a high installation coefficient.

Description

Technical Field

[0001] This invention relates to the field of workbench technology, and more specifically to an adjustable human-machine workbench. Background Technology

[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using a mechanical device. Machining is usually done on a workbench, and there are various types of workbenches on the market, but some workbenches have certain problems in their use.

[0003] Existing human-machine interfaces (HMIs) are generally fixed, failing to meet the needs of adjusting the worktable's tilt angle for easier machining. Some HMIs are adjustable (e.g., the existing patent "An Adjustable Machining Worktable," publication number CN 213320025 U). These adjustable worktables include a motor, a gear connected to the motor, a gear shaft meshing with the gear, an internally threaded sleeve, a worktable, and an internally threaded rod connected to the worktable. The motor drives the gear to rotate, causing the internally threaded sleeve, fixedly connected to the gear shaft, to rotate. The threaded rod screws downwards into the internally threaded sleeve, causing the worktable's side near the threaded rod to rotate downwards. The gear meshes with the rack, moving along its inner groove towards the telescopic rod. The telescopic rod extends, causing the worktable's side near the telescopic rod to rotate upwards, thus adjusting the worktable's angle. However, this adjustable worktable structure has technical drawbacks: the threaded rod and internally threaded sleeve wear down after prolonged use, posing a safety hazard and unable to support the worktable for extended periods; furthermore, existing adjustable worktables have poor stability after angle adjustment. Summary of the Invention

[0004] The purpose of this invention is to disclose an adjustable human-machine workbench that solves the problems of existing adjustable workbenches having safety hazards and being unable to support the workbench for a long time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable human-machine workbench includes a support assembly, an upper support plate, and an upper support plate drive structure for driving the upper support plate to rotate; the support assembly includes a support plate, a top plate disposed above the support plate, and a column, with the bottom end of the column connected to the support plate and the top end of the column connected to the top plate.

[0007] The upper support plate drive structure includes an upper support plate motor connected to the support plate, a lead screw connected to the upper support plate motor, a translation plate, a slider sleeved on the lead screw, a swing arm connected to the upper support plate, and a slider locking structure. The slider locking structure is located between the lead screw and the slider. The lead screw passes through the translation plate and connects to the top plate. The slider and the lead screw are threaded together. The slider is connected to the swing arm. The upper support plate is connected to the translation plate through a hinge. The upper support plate motor drives the lead screw to rotate, and at the same time, the lead screw drives the slider to move up and down. The slider drives the upper support plate to rotate around the hinge through the swing arm.

[0008] Furthermore, the swing arm has a first straight wall and a second straight wall connected to the first straight wall, and the outer end of the second straight wall is connected to the upper support plate; the first straight wall has a first through groove, and the second straight wall has a second through groove; the slider has a slider pin, which is inserted into the first through groove and moves along the first through groove; the translation plate is connected to a second pin, which is inserted into the second through groove and moves along the second through groove.

[0009] Furthermore, the first straight wall and the second straight wall form an included angle C, where C is 120° to 170°.

[0010] Furthermore, the bottom surface of the translation plate is provided with a buffer block, which is located above the slider.

[0011] Furthermore, the outer wall of the column is fitted with a positioning ring for positioning the translation plate. The column passes through the translation plate, and the translation plate is positioned on the positioning ring and moves along the column.

[0012] Furthermore, the surface of the positioning ring is provided with a buffer silicone layer.

[0013] Furthermore, the slider locking structure includes two opposing grooved posts, two opposing clamping blocks, a spring plate connecting the two clamping blocks, and a locking screw; the two grooved posts are located on both sides of the slider, and the clamping blocks and spring plate are located in the slider; the clamping blocks have inclined clamping block wedge surfaces and clamping block outer surfaces that cooperate with the grooved posts, the two clamping block wedge surfaces are opposite to each other, and the outer surfaces of the clamping blocks extend out of the slider and face the grooved posts; in the initial state, the clamping blocks and grooved posts are in clearance fit; the locking screw is threadedly connected to the slider, the inner end of the locking screw extends into the slider, and the inner end of the screw is located between the two clamping block wedge surfaces; the spring plate connects the two clamping block wedge surfaces.

[0014] Furthermore, a pressure wire assembly is provided on the side of the translation plate. The pressure wire assembly includes a pressure plate made of elastic soft rubber, a pressure wire stud, and a pressure wire spring sleeved on the outer wall of the pressure wire stud. The pressure wire stud passes through the pressure plate and is connected to the translation plate.

[0015] Furthermore, it also includes a lower support plate and a lower support plate driving structure for driving the lower support plate to rotate, with the upper support plate located above the lower support plate; the lower support plate driving structure includes a lower mounting plate located above the support plate, an arc-shaped groove located on one side of the lower mounting plate, a first pin that movably engages with the arc-shaped groove, a right-angle mounting seat connected to the support plate, a push rod seat connected to the right-angle mounting seat, and an electric push rod connected to the push rod seat. The electric push rod is equipped with a first telescopic rod, the outer end of which is connected to the lower support plate; the first pin is located within the arc-shaped groove and moves along the arc-shaped groove, while the first pin is connected to the first side of the lower support plate, and the outer end of the first telescopic rod is located near the second side of the lower support plate; the column passes through the lower mounting plate.

[0016] Furthermore, the push rod seat includes an open locking through hole and a locking handle threaded into the locking through hole. The locking shaft of the electric push rod is inserted into the locking through hole, and the locking handle is inserted into the opening of the locking through hole and locked to achieve locking of the shaft and the push rod seat.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This invention employs an upper support plate driving structure and a slider locking structure to adjust the tilt angle and height of the upper support plate, and a lower support plate driving structure to adjust the tilt angle of the lower support plate. This facilitates operation of objects on the worktable from different angles and positions, thus improving the functionality of the worktable and highlighting its value. The slider locking structure ensures self-locking stability and a high installation coefficient.

[0019] 2. When the upper support plate motor drives the lead screw to rotate forward, and the lead screw simultaneously drives the slider to move up and down along the Z-axis, the relative displacement between the slider pin and the first through slot drives the planar movement of the swing arm, and at the same time drives the upper support plate to rotate around the hinge. The upper support plate can be used to place tablet computers, books, documents, and other items that require eye contact. At this time, the tilt angle F of the upper support plate can be adjusted to adapt to the needs of different users, prevent poor working posture, prevent musculoskeletal diseases, and achieve a good ergonomic effect. When the slider rises to the buffer block in the middle of the translation plate, after contacting the buffer block, it will lift the translation plate, the upper support plate, and related mechanisms as a whole, at which point the upper support plate reaches its maximum tilt angle. This realizes the height adjustment function of the upper support plate to adapt to the ergonomic needs of different users. When the above components descend, the upper support plate motor is controlled to reverse, and the translation plate returns to its initial position after contacting the positioning ring. If it is necessary to adjust the tilt angle of the upper support plate, simply loosen the locking screw in the slider, and the upper support plate motor will continue to reverse, thus adjusting the tilt angle of the upper support plate.

[0020] 3. When the locking shaft inside the push rod seat is locked by the locking handle, the electric push rod is at a preset appropriate angle. The electric push rod controls the extension and retraction of the first telescopic rod, and the lower support plate moves in a planar motion. This allows for a certain range of adjustment of the angle A between the lower support plate and the horizontal plane, adapting to the ergonomic needs of different body positions. When the locking shaft inside the push rod seat is loosened by the locking handle, the angle B between the electric push rod and the horizontal plane is adjusted, and the electric push rod is rotated to other angles, the locking shaft inside the push rod seat is then locked again by the locking handle. The electric push rod then controls the extension and retraction of the first telescopic rod, and the lower support plate moves in a planar motion. This allows for a certain range of adjustment of the angle A between the lower support plate and the horizontal plane, adapting to the ergonomic needs of different body positions. The lower support plate drive structure and the lower support plate adopt the above structure. The locking through hole and locking shaft work together to adjust the rotation angle of the electric push rod. Simultaneously, the extension and retraction of the first telescopic rod, combined with these adjustments, allows for a wider range of changes in the position of the lower support plate on the horizontal plane, increasing the adjustable range of angle A and better adapting to the ergonomic needs of different body positions. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of an embodiment of an adjustable human-machine workbench of the present invention;

[0023] Figure 2 yes Figure 1 A frontal view diagram;

[0024] Figure 3 yes Figure 2 A diagram showing the view from the right.

[0025] Figure 4 yes Figure 2 A top-down view;

[0026] Figure 5 yes Figure 4 A cross-sectional view along the MM direction;

[0027] Figure 6 yes Figure 1 A three-dimensional schematic diagram of the mating of the lower mounting plate and the lower support plate;

[0028] Figure 7 yes Figure 6 A frontal view diagram;

[0029] Figure 8 yes Figure 7A top-down view;

[0030] Figure 9 yes Figure 1 A three-dimensional schematic diagram of the mating of the right-angle mounting base, electric actuator, and actuator seat;

[0031] Figure 10 yes Figure 9 A frontal view diagram;

[0032] Figure 11 yes Figure 10 A top-down view;

[0033] Figure 12 yes Figure 11 A cross-sectional view along the OO direction;

[0034] Figure 13 yes Figure 1 A three-dimensional schematic diagram of the upper and middle support plate drive structure;

[0035] Figure 14 yes Figure 13 A frontal view diagram;

[0036] Figure 15 yes Figure 14 A cross-sectional view along the PP direction;

[0037] Figure 16 yes Figure 13 A three-dimensional schematic diagram of the middle slider locking structure;

[0038] Figure 17 yes Figure 16 A frontal view diagram;

[0039] Figure 18 yes Figure 17 A diagram showing the view from below;

[0040] Figure 19 yes Figure 13 Diagram showing the locking structure of the middle slider and the engagement of the slider;

[0041] Figure 20 yes Figure 19 A frontal view diagram;

[0042] Figure 21 yes Figure 20 A cross-sectional view along the QQ direction;

[0043] Figure 22 yes Figure 1 A three-dimensional schematic diagram of the positioning ring;

[0044] In the diagram, 1 is the support component; 11 is the support leg; 111 is the primary support leg; 112 is the secondary support leg; 12 is the support column; 13 is the support plate; 14 is the top plate; 15 is the column; and 16 is the positioning ring.

[0045] 2. Lower support plate; 21. First side of the lower support plate; 22. Second side of the lower support plate;

[0046] 3. Lower support plate drive structure; 31. Lower mounting plate; 32. Arc-shaped slide groove; 33. First pin; 34. Right-angle mounting seat; 35. Electric push rod; 351. First telescopic rod; 352. Locking shaft; 36. Push rod seat; 361. Locking through hole; 362. Locking handle;

[0047] 4. Upper support plate;

[0048] 5. Upper support plate drive structure; 51. Upper support plate motor; 52. Lead screw; 53. Translation plate; 54. Slider; 541. Slider pin; 55. Swing arm; 551. First straight wall; 552. Second straight wall; 553. First through slot; 554. Second through slot; 56. Slider locking structure; 561. Slotted column; 562. Clamping block; 5621. Clamping block wedge surface; 5622. Clamping block outer surface; 563. Spring piece; 5631. Long end of spring piece; 564. Locking screw; 5641. Inner end of screw; 57. Second pin; 58. Hinge; 59. Buffer block;

[0049] 6. Wire pressing assembly; 61. Pressure plate; 62. Wire pressing stud; 63. Wire pressing spring. Detailed Implementation

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0051] In this invention, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0052] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0053] like Figures 1-22 An adjustable human-machine interface workbench, as shown in the embodiment, includes a support assembly 1, a lower support plate 2, a lower support plate drive structure 3 for driving the lower support plate 2 to rotate, an upper support plate 4 disposed above the lower support plate 2, and an upper support plate drive structure 5 for driving the upper support plate 4 to rotate. The first horizontal direction (X-axis), the second horizontal direction (Y-axis), and the vertical direction (Z-axis) are mutually perpendicular.

[0054] Support assembly 1 includes support legs 11, support columns 12 connecting the support legs 11, support plate 13 connecting the support columns 12, top plate 14 located above the support plate 13, and uprights 15. The bottom end of the uprights 15 is connected to the support plate 13, and the top end of the uprights 15 is connected to the top plate 14. The support plate 13 has a square structure, and the four support legs 11 are respectively connected to the four corners of the support plate 13 through the support columns 12. The support legs 11 are rotatable legs, and the support legs 11 can rotate to an appropriate angle relative to the support plate 13. The support legs 11 include a primary support leg 111 and a secondary support leg 112 fitted inside the primary support leg 111. The primary support leg 111 and the secondary support leg 112 are telescopically connected, and the primary support leg 111 and the secondary support leg 112 cooperate to extend and retract to a preset length to ensure the stability of the entire workbench. This embodiment includes four uprights 15.

[0055] The lower support plate drive structure 3 includes a lower mounting plate 31 located above the support plate 13, an arc-shaped groove 32 located on one side of the lower mounting plate 31, a first pin 33 that movably engages with the arc-shaped groove 32, a right-angle mounting seat 34 connected to the support plate 13, a push rod seat 36 connected to the right-angle mounting seat 34, and an electric push rod 35 connected to the push rod seat 36. The electric push rod 35 has a first telescopic rod 351, the outer end of which is connected to the bottom surface of the lower support plate 2. The first pin 33 is located within the arc-shaped groove 32 and moves along the arc-shaped groove 32. The first pin 33 is connected to the first side 21 of the lower support plate, and the outer end of the first telescopic rod 351 is located near the second side 22 of the lower support plate. The lower mounting plate 31 has a square structure, with two arc-shaped grooves 32, and four columns 15 passing through the lower mounting plate 31. In this embodiment, the electric push rod 35 is an electric drive device that converts the rotational motion of an electric motor into the linear reciprocating motion of a push rod. The electric push rod is a mature component assembly with good self-locking performance; after being extended or retracted to a certain position, it can withstand a certain external load. The push rod seat 36 includes an open locking through hole 361 and a locking handle 362 that is threaded into the locking through hole. The locking shaft 352 of the electric push rod 35 is inserted into the locking through hole 361, and the locking shaft 352 extends along the Y direction. The locking handle 362 is inserted into the opening of the locking through hole 361 and locked to fix the locking shaft 352 and the push rod seat 36. In this embodiment, the arc E of the arc-shaped groove 32 is 40° to 80°, preferably 60°.

[0056] As a further improvement to this embodiment, the outer wall of the first pin 33 is provided with a first pin covering layer (not shown), and the inner wall of the arc-shaped slide groove is provided with a slide rail covering layer (not shown). The first pin covering layer and the slide rail covering layer are made of a suitable damping material (e.g., polyurethane) to ensure suitable movement damping and suitable tightness between the two.

[0057] As a further explanation of this embodiment, the method for adjusting the lower support plate 2 by the lower support plate drive structure 3 is described below: 1. When the locking shaft 352 in the push rod seat 36 is locked by the locking handle 362, the electric push rod 35 is at a preset appropriate angle. The electric push rod 35 controls the extension and retraction of the first telescopic rod 351, and the lower support plate 2 moves in a planar motion. The size of the angle A between the lower support plate 2 and the horizontal plane can be changed within a certain range to adapt to the ergonomic needs of different body positions. 2. When the locking shaft 352 in the push rod seat 36 is loosened by the locking handle 362, the angle B between the electric push rod 35 and the horizontal plane is adjusted, and the electric push rod 35 is rotated to other angles. Then, the locking shaft 352 in the push rod seat 36 is locked by the locking handle 362. Then, the electric push rod 35 controls the extension and retraction of the first telescopic rod 351, and the lower support plate 2 moves in a planar motion. The size of the angle A between the lower support plate 2 and the horizontal plane can be changed within a certain range to adapt to the ergonomic needs of different body positions. In this embodiment, the lower support plate drive structure 3 and the lower support plate 2 adopt the above structure. The locking through hole 361 and the locking shaft 352 cooperate to adjust the rotation angle of the electric push rod. At the same time, they cooperate with the extension and retraction of the first telescopic rod 351. The combination of the two can change the position of the lower support plate 2 on the horizontal plane in a wider range, increase the adjustable range of the included angle A, and better adapt to the human-machine needs of different body positions.

[0058] The upper support plate drive structure 5 includes an upper support plate motor 51 connected to the support plate 13, a lead screw 52 connected to the upper support plate motor 51, a translation plate 53 located above the lower mounting plate 31, a slider 54 sleeved on the lead screw 52, ​​a swing arm 55 connected to the upper support plate 4, and a slider locking structure 56 located between the lead screw 52 and the slider 54. The lead screw 52 extends along the Z direction, passes through the translation plate 53, and connects to the top plate 14. The slider 54 and the lead screw 52 are threaded together. A positioning ring 16 for positioning the translation plate 53 is sleeved on the outer wall of the column 15. The column 15 passes through the translation plate 53, and the translation plate 53 is located on the positioning ring 16 and moves along the column. The surface of the positioning ring 16 is provided with a buffer silicone layer to achieve a buffering effect between the translation plate 53 and the positioning ring 16 when it descends. In its initial position, the upper support plate 4 rests entirely on the positioning ring 16. The positioning ring 16 is an open clamping ring, allowing for easy adjustment of its position on the column 15. The number of positioning rings 16 is adjusted according to actual conditions. The swing arm 55 has a first straight wall 551 and a second straight wall 552 connecting the first straight wall 551. The first straight wall 551 and the second straight wall 552 form an included angle C, which is 120° to 170°, preferably 150°. The outer end of the second straight wall 552 is connected to the upper support plate 4. The first straight wall 551 has a first through groove 553 with a strip-shaped structure, and the second straight wall 552 has a second through groove 554 with a strip-shaped structure. The slider 54 has a slider pin 541, which is inserted into the first through groove 553 and moves along the first through groove. The bottom surface of the translation plate 53 is connected to a second pin 57, which is inserted into the second through groove 554 and moves along the second through groove 554. The upper support plate 4 is connected to the translation plate 53 via a hinge 58. The bottom surface of the translation plate 53 is provided with a buffer block 59, which is located above the slider 54.

[0059] The slider locking structure 56 includes two opposing slotted posts 561, two opposing clamping blocks 562, a spring piece 563 connecting the two clamping blocks 562, and a locking screw 564. The two slotted posts 561 are located on both sides of the slider 54, and the clamping blocks 562 and spring piece 563 are located within the slider 54. Each clamping block 562 has an inclined clamping wedge surface 5621 and an outer clamping surface 5622 that mates with the slotted posts 561. The two clamping wedge surfaces 5621 are opposite each other, forming an included angle D, which is 30° to 60°, preferably 45°. The outer clamping surface 5622 extends out of the slider 54 and faces the slotted posts 561. Initially, the clamping blocks 562 and slotted posts 561 are in a clearance fit, meaning there is a suitable gap between the outer clamping surface 5622 and the inner surface of the slotted posts 561. The locking screw 564 and the slider 54 are threadedly connected. The inner end 5641 of the locking screw 564 extends into the slider 54 and is located between the two clamping block wedge surfaces 5621. The spring piece 563 connects the two clamping block wedge surfaces 5621. The groove post 561 has a right-angled cross-section.

[0060] As a further explanation of this embodiment, the operation flow of the slider locking structure 56 is now described: When the upper support plate 4 is at any angle between the maximum tilt angle and the horizontal, the locking screw 564 is tightened in the forward direction. The inner end 5641 of the locking screw 564 further extends into the slider 54 and applies an outward force to the two clamping block wedge surfaces 5621. The locking screw 564 forces the two clamping blocks 562 to overcome the spring piece 56 through the clamping block wedge surfaces 5621. The elastic force of the spring plate 563 moves outward, while the outer side 5622 of the clamping block abuts against the inner surface of the two slotted pillars 561, thus locking the slider 54. The locking screw 564 is tightened in the reverse direction, causing the inner end 5641 of the locking screw 564 to retract and withdraw the force applied to the wedge surfaces 5621 of the two clamping blocks. Under the restoring force of the spring plate 563, the two clamping blocks 562 return to their initial state, and the outer side 5622 of the clamping blocks no longer abuts against the inner surface of the two slotted pillars 561. Because the thread of the locking screw 564 has a first-stage force amplification, and the wedge surface 5621 of the clamping block has a second-stage force amplification, a large clamping force can be achieved, ensuring that the slider 54, clamping blocks 562, slotted pillars 561, and translation plate 53 move simultaneously to the appropriate position. Self-locking stability is ensured by the screw thread mechanism. The slotted pillars 561 and translation plate 53 are connected as a rigid integrated component. In this embodiment, the spring piece 563 is installed in the opening slot of the slider 54. The long end 5631 of the spring piece 563 undergoes elastic deformation when the two clamping blocks 562 move outward relative to each other. When the locking screw 564 is loosened, the spring piece 563 returns to its original position and retracts inward, and the clamping blocks 562 also return to their original position.

[0061] As a further explanation of this embodiment, the method for adjusting the lower support plate 4 by the upper support plate drive structure 5 will now be described:

[0062] Function 1: Adjustment of the tilt angle F of the upper support plate 4: When the upper support plate motor 51 drives the lead screw 52 to rotate forward, and the lead screw 52 simultaneously drives the slider 54 to move up and down along the Z-axis, the relative displacement between the slider pin 541 and the first through groove 553 causes the swing arm 55 to move in a plane, and at the same time, it causes the upper support plate 4 to rotate around the hinge 58. The upper support plate 4 can be used to place tablet computers, books, and other items that require eye contact. At this time, the tilt angle of the upper support plate 4 can be adjusted to adapt to the needs of different users, prevent poor working posture, prevent musculoskeletal diseases, and achieve a good human-machine positioning effect.

[0063] Function 2: Adjustment of the height of the upper support plate 4: Further, when the slider 54 rises to the buffer block 59 in the middle of the translation plate 53, after contacting the buffer block 59, it will lift the translation plate 53, the upper support plate 4, and related mechanisms as a whole, at which point the upper support plate 4 reaches its maximum tilt angle. This realizes the height adjustment function of the upper support plate 4 to adapt to the human-machine body position needs of different groups of people.

[0064] Function 3: After adjusting the tilt angle and / or height of the upper support plate 4, it is locked using the slider locking structure 56 to ensure self-locking stability. When the above components descend, the upper support plate motor 51 is reversed, and the translation plate 53 returns to its initial position after contacting the positioning ring 16. If it is necessary to adjust the tilt angle of the upper support plate 4, simply loosen the locking screw 564 in the slider 54, and the upper support plate motor 51 will continue to reverse, thus adjusting the tilt angle of the upper support plate 4.

[0065] As a further explanation of this embodiment, a wire pressing assembly 6 is provided on the side of the translation plate 53 facing the upper support plate 4. The wire pressing assembly 6 includes a pressure plate 61 made of elastic soft rubber, a wire pressing stud 62, and a wire pressing spring 63 sleeved on the outer wall of the wire pressing stud 62. The wire pressing stud 62 passes through the pressure plate 61 and is connected to the translation plate 53. When the pressure plate 61 is lifted, the wire harnesses of various electronic products on the workbench of this embodiment can be passed under the pressure plate 61. After releasing the pressure plate 61, the wire pressing spring 63 presses the pressure plate 31 and the wire harness, keeping the wire harness neat and preventing it from becoming tangled.

[0066] As a further improvement to this embodiment, this embodiment also includes an MCU module (not shown) with a human-machine interface and a height sensor (not shown) mounted on the upper support plate 4. The upper support plate motor 51 and the height sensor are respectively connected to the MCU module. The MCU module can use an STM32F103C8T6 chip as the core of the control circuit. The STM32F103C8T6 is a 32-bit microcontroller based on the ARM Cortex-M core STM32 series. This chip has powerful performance and a rich set of peripheral interfaces. This embodiment may also include a watchdog chip connected to the STM32F103C8T6 chip. During operation, the STM32F103C8T6 chip is susceptible to external interference such as electromagnetic fields, which can cause the program to crash and enter an infinite loop. The purpose of using a watchdog chip is to monitor the microcontroller's operating status in real time, enabling it to work continuously even when unattended. The watchdog timer chip operates as follows: The STM32F103C8T6 chip periodically sends signals to the watchdog timer chip via an I / O pin. If the microcontroller program unexpectedly crashes and fails to send signals to the watchdog timer chip periodically, the watchdog timer chip will send a reset signal to reset the STM32F103C8T6 chip, causing the program to execute from the beginning. This achieves automatic reset of the MCU module.

[0067] Other structures in this embodiment are described in the prior art.

[0068] As a further illustration of the present invention, the embodiments and technical features described herein can be combined with each other unless otherwise specified. The present invention is not limited to the above-described embodiments. If various modifications or variations to the present invention do not depart from the spirit and scope of the invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of the present invention, then the present invention also intends to include such modifications and variations.

Claims

1. An adjustable human-machine workstation, characterized by: It includes a support assembly (1), an upper support plate (4), and an upper support plate drive structure (5) for driving the upper support plate (4) to rotate; the support assembly (1) includes a support plate (13), a top plate (14) disposed above the support plate (13), and a column (15), the bottom end of the column (15) is connected to the support plate (13), and the top end of the column (15) is connected to the top plate (14). The upper support plate drive structure (5) includes an upper support plate motor (51) connected to the support plate (13), a lead screw (52) connected to the upper support plate motor (51), a translation plate (53), a slider (54) sleeved on the lead screw (52), a swing arm (55) connected to the upper support plate (4), and a slider locking structure (56). The slider locking structure (56) is located between the lead screw (52) and the slider (54). The lead screw (52) passes through the translation plate (53) and is connected to the top plate (14). The slider (54) and the lead screw (52) are threaded together. The slider (54) is connected to the swing arm (55). The upper support plate (4) is connected to the translation plate (53) through a hinge (58). The upper support plate motor (51) drives the lead screw (52) to rotate, and at the same time, the lead screw (52) drives the slider (54) to move up and down. The slider (54) drives the upper support plate (4) to rotate around the hinge (58) through the swing arm (55). The swing arm (55) has a first straight wall (551) and a second straight wall (552) connecting the first straight wall (551), the outer end of the second straight wall (552) is connected to the upper support plate (4); the first straight wall (551) has a first through groove (553), and the second straight wall (552) has a second through groove (554); the slider (54) has a slider pin (541), the slider pin (541) is inserted into the first through groove (553) and moves along the first through groove (553); the translation plate (53) is connected to a second pin (57), the second pin (57) is inserted into the second through groove (554) and moves along the second through groove (554); The outer wall of the column (15) is fitted with a positioning ring (16) for positioning the translation plate (53). The column (15) passes through the translation plate (53), and the translation plate (53) is located on the positioning ring (16) and moves along the column (15). The slider locking structure (56) includes two opposing slotted posts (561), two opposing clamping blocks (562), a spring piece (563) connecting the two clamping blocks (562), and a locking screw (564); the two slotted posts (561) are located on both sides of the slider (54), and the clamping blocks (562) and spring piece (563) are located in the slider (54); the clamping blocks (562) are provided with an inclined clamping block wedge surface (5621) and a clamping block outer surface (5622) that cooperates with the slotted posts (561), 2 The clamping block wedge surfaces (5621) are arranged opposite each other, and the outer side (5622) of the clamping block extends out of the slider (54) and faces the groove post (561); in the initial state, the clamping block (562) and the groove post (561) are in clearance fit; the locking screw (564) and the slider (54) are threadedly connected, the inner end (5641) of the locking screw (564) extends into the slider (54), and the inner end (5641) of the screw is located between the two clamping block wedge surfaces (5621); the spring piece (563) connects the two clamping block wedge surfaces (5621).

2. The adjustable human-machine workstation of claim 1, wherein: The first straight wall (551) and the second straight wall (552) form an included angle C, where C is 120°~170°.

3. The adjustable human-machine workstation of claim 1, wherein: The bottom surface of the translation plate (53) is provided with a buffer block (59), which is located above the slider (54).

4. The adjustable human-machine workstation of claim 1, wherein: The surface of the positioning ring (16) is provided with a buffer silicone layer.

5. The adjustable human-machine workstation of claim 1, wherein: A pressure assembly (6) is provided on the side of the translation plate (53). The pressure assembly (6) includes a pressure plate (61) made of elastic soft rubber, a pressure stud (62) and a pressure spring (63) sleeved on the outer wall of the pressure stud (62). The pressure stud (62) passes through the pressure plate (61) and is connected to the translation plate (53).

6. The adjustable man-machine workbench according to any one of claims 2-4, characterized in that: It also includes a lower support plate (2) and a lower support plate drive structure (3) for driving the lower support plate (2) to rotate. The upper support plate (4) is located above the lower support plate (2). The lower support plate drive structure (3) includes a lower mounting plate (31) located above the support plate (13), an arc-shaped slide groove (32) located on one side of the lower mounting plate (31), a first pin (33) that is movably engaged with the arc-shaped slide groove (32), a right-angle mounting seat (34) connected to the support plate (13), and a push rod seat (36) connected to the right-angle mounting seat (34). The electric push rod (35) is connected to the push rod seat (36). The electric push rod (35) is provided with a first telescopic rod (351). The outer end of the first telescopic rod (351) is connected to the lower support plate (2). The first pin (33) is located in the arc-shaped slide groove (32) and moves along the arc-shaped slide groove (32). At the same time, the first pin (33) is connected to the first side (21) of the lower support plate. The outer end of the first telescopic rod (351) is located at the position near the second side (22) of the lower support plate. The column (15) passes through the lower mounting plate (31).

7. The adjustable human-machine workstation of claim 6, wherein: The push rod seat (36) includes an open locking through hole (361) and a locking handle (362) threaded into the locking through hole (361). The locking shaft (352) of the electric push rod (35) is inserted into the locking through hole (361), and the locking handle (362) is inserted into the opening of the locking through hole (361) and locked, so as to realize the locking shaft (352) and the push rod seat (36).

Images