Blind pressing structure of demonstrator key membrane shaft key

Abstract

The invention relates to the technical field of robots, in particular to a demonstrator key membrane shaft key blind pressing structure which comprises a host and a plurality of prompt blocks, the surface of the host is connected with a plurality of shaft key buttons at intervals, the plurality of prompt blocks are divided into a plurality of groups, each group of prompt blocks correspond to the shaft key buttons one to one, and the plurality of prompt blocks in the same group are connected to the surfaces of the shaft key buttons at intervals. And the number and arrangement of each group of prompt blocks are in one-to-one correspondence with the coordinate systems of the shaft key buttons. According to the arrangement of the prompt blocks, the number and arrangement of each group of prompt blocks are designed to be different, so that an operator can distinguish different points between the shaft key buttons, and potential safety hazards are prevented; and meanwhile, the operator is helped to judge the touched shaft key button, so that the operator can carry out blind pressing operation on the shaft key button on the demonstrator, the operator does not need to lower the head to check the shaft key button, the distraction of the operator on the dynamic attention of the robot is reduced, the collision or misoperation probability is reduced, and the programming efficiency of the operator on the demonstrator is improved.

Description

Technical Field

[0001] This application relates to the field of robotics, and in particular to a blind-press structure for a teach pendant key membrane axis key. Background Technology

[0002] The teach pendant is the core human-machine interaction device for industrial robots, integrating functions such as programming, debugging, monitoring and safety control. It enables robot motion trajectory recording, parameter configuration and real-time status monitoring through a handheld terminal, and is a key operating tool in industrial automated production.

[0003] Operators guide the robot's movement using buttons, joysticks, or touchscreens on the teach pendant, recording key points to generate trajectories. During industrial robot operation, operators need to simultaneously monitor the robotic arm's trajectory, the end effector's status, and the surrounding environment. Frequently looking down at the axis keys can distract operators from the robot's dynamics, increasing the probability of collisions or misoperations, thereby reducing the operator's programming efficiency with the teach pendant. Summary of the Invention

[0004] To improve the programming efficiency of teach pendants, this application provides a blind-press structure for teach pendant key membrane axis keys.

[0005] This application provides a blind-pressing structure for a teach pendant key membrane axis key, which adopts the following technical solution: A teach pendant key membrane axis key blind pressing structure includes a main unit and multiple prompt blocks. Multiple axis key buttons are connected to the surface of the main unit at intervals. The multiple prompt blocks are divided into multiple groups. Each group of prompt blocks corresponds one-to-one with an axis key button. Multiple prompt blocks in the same group are connected to the surface of the axis key button at intervals. The number and arrangement of the prompt blocks in each group correspond one-to-one with the coordinate system of the axis key button.

[0006] By adopting the above technical solution, multiple axis buttons are spaced apart on the mainboard surface. These axis buttons can control the independent movement of each joint axis of the robot. Multiple prompt blocks are divided into groups, with each group corresponding to a single axis button. The number and arrangement of prompt blocks in each group are designed according to the coordinate system of the axis buttons. By designing different numbers and arrangements for each group of prompt blocks, operators can distinguish the differences between the axis buttons, preventing potential safety hazards. At the same time, it helps operators identify the axis buttons they have touched, enabling blind pressing of the axis buttons on the teach pendant. Operators do not need to look down to check the axis buttons, reducing distraction from the robot's dynamics, lowering the probability of collisions or misoperations, and thus improving the operator's programming efficiency of the teach pendant.

[0007] Optionally, a mounting component is connected between the prompt block and the key button. The mounting component includes an elastic block connected to the surface of the prompt block. The surface of the key button has a mounting groove for the elastic block to be embedded in. The surface of the elastic block abuts against the inner wall of the mounting groove and limits the prompt block to the surface of the key button.

[0008] By adopting the above technical solution, when the prompt block is installed, the elastic block is embedded in the installation groove, and the surface of the elastic block abuts against the inner wall of the installation groove to form a fixation, thus limiting the prompt block to the surface of the key button. This achieves a detachable connection between the prompt block and the key button, making it convenient for the operator to replace the worn prompt block, thereby extending the service life of the teach pendant.

[0009] Optionally, the mounting assembly further includes a clamping block, a contact switch, an electromagnet, and a magnetic block. The bottom wall of the mounting groove has a clamping cavity for the clamping block to slide in, and the surface of the elastic block has a clamping groove for the end of the clamping block to be embedded in. The electromagnet is connected to the surface of the clamping block facing the clamping groove, and the magnetic block is connected to the inner wall of the clamping groove facing the electromagnet. The contact switch is connected to the inner wall of the mounting groove and is electrically connected to the electromagnet. When the contact switch abuts against the surface of the elastic block and is turned on, the electromagnet is energized and becomes magnetic. The electromagnet and the magnetic block attract each other with opposite poles, causing the end of the clamping block to be embedded in the clamping groove. The surface of the clamping block and the inner wall of the mounting groove press against both sides of the elastic block to form a limiting position.

[0010] By adopting the above technical solution, when the elastic block is embedded in the mounting groove, the contact switch abuts against the surface of the elastic block and conducts, the electromagnet is energized and becomes magnetic, the electromagnet and the opposite pole of the magnetic block attract each other, driving the pressing block to slide along the inner wall of the pressing cavity towards the pressing groove. The end of the pressing block with the magnetic block is embedded in the pressing groove, and the surface of the pressing block and the inner wall of the mounting groove squeeze the two sides of the elastic block to form a limit, making it difficult for the elastic block to fall out of the mounting groove, thereby improving the limiting stability of the elastic block in the mounting groove.

[0011] Optionally, the mounting assembly further includes multiple elastic arc blocks, which are spaced apart and connected to the inner wall of the mounting groove. The multiple elastic arc blocks are spliced ​​together to form a circular plate and close the mounting groove. The elastic blocks are embedded in the mounting groove and squeeze the elastic arc blocks. The elastic arc blocks are deformed under pressure. The inner wall of the mounting groove and the surface of the elastic blocks squeeze the two sides of the elastic arc blocks to form a limiting position.

[0012] By adopting the above technical solution, multiple elastic arc blocks are connected at intervals to the inner wall of the mounting groove. The multiple elastic arc blocks are spliced ​​together to form a circular plate and close the mounting groove, thereby achieving the closure of the mounting groove and making it difficult for external impurities to enter the mounting groove, thus ensuring the cleanliness of the mounting groove. At the same time, when the elastic block is embedded in the mounting groove, the elastic block squeezes the elastic arc block, and the elastic arc block is deformed under pressure. The inner wall of the mounting groove and the surface of the elastic block squeeze the two sides of the elastic arc block to form a limit, increasing the clamping force between the elastic block and the inner wall of the mounting groove, and further improving the limiting stability of the elastic block in the mounting groove.

[0013] Optionally, the mounting assembly further includes a positioning ring and a positioning ring bladder. The positioning ring is connected to the surface of the key button. The inner ring of the positioning ring surrounds the outer circumferential surface of the indicator block. The inner ring wall of the positioning ring has a positioning cavity for the positioning ring bladder to be embedded in. The outer circumferential surface of the indicator block has a clamping cavity for the inner ring of the positioning ring bladder to be embedded in.

[0014] By adopting the above technical solution, when the elastic block is embedded in the installation groove, the inner ring wall of the positioning ring surrounds the outer circumference of the indicator block. At the same time, the positioning cavity is connected to the clamping cavity, the outer ring of the positioning ring is coaxially connected to the inner wall of the positioning cavity, the inner ring of the positioning ring is embedded in the clamping cavity, and the inner wall of the clamping cavity clamps the two sides of the positioning ring to form a seal, making it difficult for the indicator block to fall off the key button, and further improving the positioning stability of the indicator block on the key button.

[0015] Optionally, the positioning ring is connected to an extrusion assembly, which includes an extrusion plate and an extrusion rod. The key button has an extrusion channel on its surface facing the positioning ring for the extrusion rod to slide through. The sliding direction of the extrusion rod is parallel to the sliding direction of the clamping block. The positioning ring has an extrusion cavity on its surface for the extrusion rod to slide through. The extrusion cavity is connected to the positioning cavity. The extrusion plate is connected to the end face of the extrusion rod that protrudes from the positioning ring, and the surface of the extrusion plate abuts against the surface of the positioning ring.

[0016] By adopting the above technical solution, when the inner ring of the positioning ring is embedded in the clamping cavity, the extrusion plate is driven to extrude the positioning ring. The positioning ring is deformed under pressure and presses against the inner wall of the clamping cavity, further improving the clamping force between the surface of the positioning ring and the inner wall of the clamping cavity. At the same time, the extrusion rod slides along the inner wall of the extrusion channel, making it less likely for the extrusion plate to deviate when extruding the positioning ring, thereby improving the stability of the extrusion plate extruding the positioning ring.

[0017] Optionally, the extrusion assembly further includes a connecting rope, the extrusion channel communicates with the clamping cavity, one end of the connecting rope is connected to the surface of the extrusion rod, the other end of the connecting rope is connected to the surface of the clamping block, and the connecting rope is in a taut state.

[0018] By adopting the above technical solution, when the clamping block slides along the inner wall of the clamping cavity toward the clamping groove, the connecting rope receives the power of the clamping block and drives the extrusion rod to slide along the inner wall of the extrusion channel toward the shaft key button, thereby causing the extrusion plate to extrude the positioning ring, realizing the directional sliding of the extrusion rod. This eliminates the need for the user to manually drive the extrusion rod to slide, thus improving the installation efficiency of the indicator block.

[0019] Optionally, the extrusion assembly further includes an elastic element, the elastic force of which is less than the magnetic force of the electromagnet, one end of the elastic element in the direction of elastic force is connected to the face of the extrusion rod, and the other end of the elastic element in the direction of elastic force is connected to the inner wall of the extrusion channel. The elastic element has the elastic force to drive the extrusion rod to slide away from the key button, and the end face of the clamping block tends to be flush with the inner wall of the mounting groove.

[0020] By adopting the above technical solution, when the elastic block is driven to detach from the mounting groove, the contact effect between the contact switch and the elastic block disappears, the electromagnet loses its magnetism when de-energized, and the elastic force of the elastic element drives the squeezing rod to slide away from the key button. The connecting rope receives the power of the squeezing rod and drives the pressing block to slide away from the mounting groove along the inner wall of the pressing cavity. The end face of the pressing block is flush with the bottom wall of the mounting groove, thus realizing the automatic reset of the pressing block.

[0021] Optionally, the extrusion assembly further includes connecting rod one and connecting rod two. One end of connecting rod one is rotatably connected to the surface of the extrusion plate facing the positioning cavity, and the other end of connecting rod one is rotatably connected to the end of connecting rod two. The other end of connecting rod two is rotatably connected to the inner wall of the positioning cavity. The rotatably connected ends of connecting rod one and connecting rod two abut against the outer wall of the positioning ring bladder. When the extrusion plate extrudes the surface of the positioning ring bladder, it drives connecting rod one and connecting rod two to rotate in a direction that moves closer to each other. The rotatably connected ends of connecting rod one and connecting rod two extrude against the outer wall of the positioning ring bladder.

[0022] By adopting the above technical solution, when the extrusion plate extrudes the surface of the positioning ring bladder, it drives connecting rod one and connecting rod two to rotate in a direction closer to each other. The ends of connecting rod one and connecting rod two that are rotatably connected extrude the outer ring wall of the positioning ring bladder. The inner ring wall of the positioning ring bladder is deformed by pressure and presses against the inner wall of the pressing cavity, further improving the pressing force between the inner ring wall of the positioning ring bladder and the inner wall of the pressing cavity.

[0023] Optionally, the extrusion assembly further includes a guide plate, which is connected to the surface of the extrusion plate near the rotating shaft of the connecting rod. The guide plate abuts against the rotating shaft surface of the connecting rod and limits the rotation of the connecting rod towards the extrusion rod.

[0024] By adopting the above technical solution, the guide plate abuts against the rotating shaft surface of the first connecting rod and limits the first connecting rod to rotate in the direction closer to the extrusion rod, reducing the collision between the first connecting rod and the extrusion rod, thereby ensuring the stability of the tightness between the ends of the rotating connection of the first connecting rod and the second connecting rod and the positioning ring.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The setting of prompt blocks, by designing that the number and arrangement of each group of prompt blocks are different, allows the operator to distinguish the differences between the axis key buttons, preventing potential safety hazards; at the same time, it helps the operator to identify the axis key button touched, enabling the operator to blindly press the axis key buttons on the teach pendant without having to look down to look at the axis key buttons, reducing the operator's attention to the robot's dynamics, reducing the probability of collisions or misoperation, and thus improving the operator's programming efficiency of the teach pendant; 2. The elastic block setting enables a detachable connection between the prompt block and the key button, making it convenient for the operator to replace the worn prompt block, thereby extending the service life of the teach pendant; 3. The setting of the clamping block, contact switch, electromagnet and magnetic block, the surface of the clamping block and the inner wall of the mounting groove squeeze the two sides of the elastic block to form a limit, making it difficult for the elastic block to fall out of the mounting groove, thereby improving the limiting stability of the elastic block in the mounting groove. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0028] Figure 3 This is a partial cross-sectional view of Embodiment 2 of this application, mainly showing the installation components.

[0029] Explanation of reference numerals in the attached drawings: 1. Main unit; 2. Indicator block; 21. Clamping cavity; 3. Shaft key button; 31. Positioning groove; 32. Mounting groove; 33. Clamping cavity; 34. Extrusion channel; 4. Mounting assembly; 41. Elastic block; 411. Clamping groove; 42. Clamping block; 43. Contact switch; 44. Electromagnet; 45. Magnetic block; 46. Positioning ring; 461. Positioning cavity; 462. Extrusion cavity; 47. Positioning ring bladder; 48. Elastic arc block; 5. Extrusion assembly; 51. Extrusion plate; 52. Extrusion rod; 53. Connecting rope; 54. Elastic element; 55. Connecting rod one; 56. Connecting rod two; 57. Guide plate. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a blind-press structure for a teach pendant key membrane axis key.

[0032] Example 1 Reference Figure 1The teach pendant keypad blind-press structure includes a main unit 1 and multiple prompt blocks 2. Multiple keypad buttons 3 are spaced apart on the surface of the main unit 1. In this embodiment, the keypad buttons 3 include X, Y, Z, A, B, and C. The multiple prompt blocks 2 are divided into multiple groups, with each group of prompt blocks 2 corresponding one-to-one with a keypad button 3. Multiple prompt blocks 2 in the same group are spaced apart and fixed on the surface of the keypad button 3, and the number and arrangement of each group of prompt blocks 2 correspond one-to-one with the coordinate system of the keypad button 3. In this embodiment, X, Y, Z, A, B, and C in the keypad button 3 correspond one-to-one with the coordinate system of the keypad button 3. The Braille symbols 1, 2, 3, 4, 5, and 6 corresponding to the arrangement of prompt blocks 2 are designed so that the number and arrangement of each set of prompt blocks 2 are different. This allows the operator to distinguish the differences between the axis key buttons 3 and prevent safety hazards. At the same time, it helps the operator to identify the axis key button 3 that has been touched, enabling the operator to blindly press the axis key buttons 3 on the teach pendant. The operator does not need to look down to see the axis key buttons 3, reducing the operator's attention from the robot's dynamics, reducing the probability of collisions or misoperation, and thus improving the operator's programming efficiency of the teach pendant.

[0033] The implementation principle of the blind pressing structure of the teach pendant key membrane axis key in Embodiment 1 of this application is as follows: X, Y, Z, A, B and C in the axis key button 3 correspond one-to-one with the Braille 1, 2, 3, 4, 5 and 6 represented by the arrangement of prompt blocks 2. By designing that the number and arrangement of each group of prompt blocks 2 are different, the operator can distinguish the differences between the axis key buttons 3 and prevent safety hazards. At the same time, it helps the operator to judge the axis key button 3 that has been touched, so that the operator can perform blind pressing operation on the axis key button 3 on the teach pendant. The operator does not need to look down to check the axis key button 3, which reduces the operator's attention to the robot's dynamics, reduces the probability of collision or misoperation, and thus improves the operator's programming efficiency of the teach pendant.

[0034] Example 2 Reference Figure 2 and Figure 3 The difference between Embodiment 2 and Embodiment 1 is that an installation component 4 is installed between the prompt block 2 and the key button 3. The installation component 4 enables quick installation and removal of the prompt block 2 on the key button 3. The installation component 4 includes an elastic block 41, a clamping block 42, a contact switch 43, an electromagnet 44, a magnetic block 45, a positioning ring 46, a positioning ring bladder 47, and multiple elastic arc blocks 48. The key button 3 has a positioning groove 31 for the end of the prompt block 2 to be embedded. The end face of the prompt block 2 abuts against the inner wall of the positioning groove 31 to form a preliminary positioning.

[0035] Reference Figure 2 and Figure 3The elastic block 41 can be made of rubber or silicone. In this embodiment, the elastic block 41 is made of rubber and has a certain deformation capability. The end of the elastic block 41 is fixed on the surface of the prompt block 2 facing the positioning groove 31. The bottom wall of the positioning groove 31 is provided with an installation groove 32 for the elastic block 41 to be embedded. The outer peripheral surface of the elastic block 41 abuts against the inner wall of the installation groove 32 and limits the end of the prompt block 2 to be located in the positioning groove 31, so that the prompt block 2 is not easy to fall out of the positioning groove 31, thereby improving the fixing firmness of the prompt block 2 on the key button 3.

[0036] Reference Figure 2 and Figure 3 The elastic arc block 48 can be made of rubber or silicone. In this embodiment, the elastic arc block 48 is made of rubber, which has a certain deformation capability. Multiple elastic arc blocks 48 are connected at intervals to the inner wall of the mounting groove 32. Multiple elastic arc blocks 48 are spliced ​​to form a circular plate and close the mounting groove 32, making it difficult for external impurities to enter the mounting groove 32 through the elastic arc blocks 48, thereby ensuring the cleanliness of the mounting groove 32. When the elastic block 41 is embedded in the mounting groove 32, the elastic block 41 squeezes the elastic arc block 48 to deform. The elastic arc block 48 is deformed under pressure, and the surface of the elastic block 41 and the inner wall of the mounting groove 32 press against the two sides of the elastic arc block 48 to form a seal, thereby further improving the clamping force between the elastic block 41 and the inner wall of the mounting groove 32.

[0037] Reference Figure 2 and Figure 3 The bottom wall of the mounting groove 32 has a clamping cavity 33 for the sliding of the clamping block 42. The surface of the elastic block 41 facing the clamping cavity 33 has a clamping groove 411 for the end of the clamping block 42 to be inserted. The electromagnet 44 is fixed to the surface of the clamping block 42 facing the clamping groove 411 by bolts. The magnetic block 45 is fixed to the inner wall of the clamping groove 411 facing the electromagnet 44 by bolts. The contact switch 43 is fixed to the inner wall of the mounting groove 32 by bolts. The contact switch 43 is electrically connected to the electromagnet 44. When the elastic block 41 is inserted into the mounting groove 32, The contact switch 43 abuts against the surface of the elastic block 41 and conducts electricity. The electromagnet 44 is energized and has magnetic force. The electromagnet 44 and the magnetic block 45 are attracted by opposite poles, which drives the pressing block 42 to slide along the inner wall of the pressing cavity 33 toward the pressing groove 411. The end of the pressing block 42 with the magnetic block 45 is embedded in the pressing groove 411. The surface of the pressing block 42 and the inner wall of the mounting groove 32 press the two sides of the elastic block 41 to form a limit, making it difficult for the elastic block 41 to fall out of the mounting groove 32, thereby further improving the limiting stability of the elastic block 41 in the mounting groove 32.

[0038] Reference Figure 2 and Figure 3The positioning ring 46 is fixed to the surface of the key button 3. The inner ring of the positioning ring 46 surrounds the outer circumference of the prompt block 2. The material of the positioning ring bladder 47 can be rubber or silicone. In this embodiment, the material of the positioning ring bladder 47 is rubber, which has a certain deformation capability. The inner ring wall of the positioning ring 46 is coaxially provided with a positioning cavity 461 for the positioning ring bladder 47 to be embedded. One end of the positioning ring bladder 47 in the axial direction is fixed to the inner wall of the positioning cavity 461. The inner ring wall of the positioning ring bladder 47 protrudes from the inner ring wall of the positioning ring 46. The outer circumference of the prompt block 2 is coaxially provided with a clamping cavity 21 for the inner ring wall of the positioning ring bladder 47 to be embedded. The inner ring wall of the positioning ring bladder 47 protrudes from the inner ring wall of the positioning ring 46 and is embedded in the clamping cavity 21. The inner ring wall of the positioning ring bladder 47 abuts against the inner wall of the clamping cavity 21 to form a seal, making it difficult for the prompt block 2 to fall off the key button 3, and further improving the limiting stability of the prompt block 2 on the key button 3.

[0039] Reference Figure 2 and Figure 3 The positioning ring 46 is equipped with a compression assembly 5, which can compress the end face of the positioning ring bladder 47. The inner wall of the positioning ring bladder 47 is deformed under pressure and presses against the inner wall of the pressing cavity 33 to form a limit. The compression assembly 5 includes a compression plate 51, a compression rod 52, a connecting rope 53, an elastic element 54, a connecting rod 1 55, a connecting rod 2 56, and a guide plate 57. The key button 3 has a compression channel 34 on the surface of the positioning ring 46 for the compression rod 52 to slide. The compression channel 34 is connected to the compression cavity 462. The sliding direction of the compression rod 52 and the sliding direction of the pressing block 42 are parallel to each other. The positioning ring 46 has a compression cavity 462 on the surface of the compression channel 34 for the compression rod 52 to slide. The compression cavity 462 is connected to the positioning cavity 461 and the compression channel 34. One end of the compression rod 52 passes through the compression cavity 462 and the positioning cavity 461 in sequence and protrudes from the end face of the positioning ring 46.

[0040] Reference Figure 2 and Figure 3 The extrusion plate 51 is fixed to the end face of the extrusion rod 52 that protrudes from the positioning ring 46. The extrusion plate 51 is slidably connected to the inner wall of the positioning cavity 461. The sliding direction of the extrusion plate 51 is parallel to the sliding direction of the extrusion rod 52. The plate face of the extrusion plate 51 facing the positioning cavity 461 abuts against the end face of the positioning ring 47. One end of the connecting rope 53 is connected to the end face of the extrusion rod 52 away from the extrusion plate 51. The other end of the connecting rope 53 is connected to the surface of the pressing block 42. The connecting rope 53 between the pressing block 42 and the extrusion rod 52 is in a taut state.

[0041] Reference Figure 2 and Figure 3The elastic force of the elastic element 54 is less than the magnetic force of the electromagnet 44. The elastic element 54 can be a compression spring or a tension spring. In this embodiment, the elastic element 54 is a compression spring, which has a certain deformation capability. One end of the elastic element 54 in the direction of elastic force is connected to the rod surface of the extrusion rod 52, and the other end of the elastic element 54 in the direction of elastic force is connected to the inner wall of the extrusion channel 34. The elastic element 54 has the elastic force to drive the extrusion rod 52 to slide away from the key button 3, and the end face of the abutting block 42 is flush with the inner wall of the mounting groove 32.

[0042] Reference Figure 2 and Figure 3 When the elastic block 41 is embedded in the mounting groove 32, the contact switch 43 abuts against the elastic block 41 and conducts, the electromagnet 44 is energized and has magnetic force, the electromagnet 44 and the magnetic block 45 attract each other with opposite poles, driving the pressing block 42 to slide along the inner wall of the pressing cavity 33 toward the pressing groove 411. The end of the pressing block 42 with the magnetic block 45 is embedded in the pressing groove 411. The connecting rope 53 receives the power of the pressing block 42 and drives the extrusion rod 52 to slide along the inner wall of the extrusion channel 34 toward the shaft key button 3, driving the extrusion plate 51 to approach the positioning ring 47 along the inner wall of the positioning cavity 461. The surface of the extrusion plate 51 presses the surface of the positioning ring 47, the inner ring wall of the positioning ring 47 expands under pressure and abuts against the inner wall of the pressing cavity 33, thereby improving the limiting stability of the prompt block 2 on the shaft key button 3.

[0043] Reference Figure 2 and Figure 3 When the elastic block 41 disengages from the mounting groove 32, the contact effect between the contact switch 43 and the elastic block 41 disappears, the electromagnet 44 loses power and loses its magnetic force, and the elastic element 54 drives the extrusion rod 52 to slide along the inner wall of the extrusion channel 34 away from the key button 3, which in turn drives the extrusion plate 51 to move away from the positioning ring 47 along the inner wall of the positioning cavity 461. The extrusion effect of the extrusion plate 51 on the positioning ring 47 disappears, and the positioning ring 47 depressurizes and retracts. At the same time, the connecting rope 53 receives the power of the extrusion rod 52 and drives the pressing block 42 to slide along the inner wall of the pressing cavity 33 away from the mounting groove 32. The end face of the pressing block 42 is flush with the bottom wall of the mounting groove 32, realizing the automatic reset of the pressing block 42.

[0044] Reference Figure 2 and Figure 3One end of connecting rod 55 is rotatably connected to the surface of the extrusion plate 51 near the positioning ring 47, and the other end of connecting rod 55 is rotatably connected to the end of connecting rod 56. The end of connecting rod 56 away from connecting rod 55 is rotatably connected to the inner wall of the positioning cavity 461 near the positioning ring 47. The rotation axis of connecting rod 55 and the rotation axis of connecting rod 56 are parallel to each other, and the rotation axis of connecting rod 55 and the sliding direction of extrusion rod 52 are perpendicular to each other. The ends of connecting rod 55 and connecting rod 56 rotatably connected abut against the outer ring wall of the positioning ring 47. The number of guide plates 57 can be one, two, or more. In this embodiment, the number of guide plates 57 is two. One guide plate 57 is connected to the surface of the extrusion plate 51 near the rotating shaft of the first connecting rod 55. The surface of the guide plate 57 abuts against the rotating shaft of the first connecting rod 55 and limits the rotation of the first connecting rod 55 towards the extrusion rod 52. The other guide plate 57 is connected to the surface of the positioning cavity 461 near the rotating shaft of the second connecting rod 56. The surface of the guide plate 57 abuts against the rotating shaft of the second connecting rod 56 and limits the rotation of the second connecting rod 56 towards the extrusion rod 52. Limiting the rotation of the first connecting rod 55 and the second connecting rod 56 towards the extrusion rod 52 makes it less likely for the extrusion rod 52 to collide with the first connecting rod 55 and the second connecting rod 56, thereby improving the stability of the extrusion assembly 5 during operation.

[0045] Reference Figure 2 and Figure 3 When the extrusion plate 51 slides along the inner wall of the positioning cavity 461 toward the positioning ring bladder 47, it drives the connecting rod 1 55 and the connecting rod 2 56 to rotate toward each other. The ends of the connecting rod 1 55 and the connecting rod 2 56 rotate and squeeze the outer wall of the positioning ring bladder 47, causing the inner wall of the positioning ring bladder 47 to increase pressure and expand and press against the inner wall of the pressing cavity 33. When the extrusion plate 51 slides along the inner wall of the positioning cavity 461 toward the direction away from the positioning ring bladder 47, it drives the connecting rod 1 55 and the connecting rod 2 56 to rotate toward the direction away from each other. The ends of the connecting rod 1 55 and the connecting rod 2 56 rotate away from the outer wall of the positioning ring bladder 47. The pressure on the positioning ring bladder 47 from the connecting rod 1 55 and the connecting rod 2 56 disappears, and the inner wall of the positioning ring bladder 47 shrinks and retracts.

[0046] The implementation principle of the blind-pressing key membrane shaft key structure of the teaching pendant in Embodiment 2 of this application is as follows: When the prompt block 2 is installed, the elastic block 41 is embedded in the mounting groove 32. The elastic block 41 compresses the elastic arc block 48 and deforms it. The elastic arc block 48 is deformed under pressure. The surface of the elastic block 41 and the inner wall of the mounting groove 32 press against both sides of the elastic arc block 48 to form a seal. The contact switch 43 abuts against the surface of the elastic block 41 and conducts. The electromagnet 44 is energized and has magnetic force. The electromagnet 44 and the magnetic block 45 are attracted by opposite poles, which drives the pressing block 42 to slide along the inner wall of the pressing cavity 33 towards the pressing groove 411. The end of the pressing block 42 with the magnetic block 45 is embedded in the pressing groove 411. The surface of the pressing block 42 and the inner wall of the mounting groove 32 compress both sides of the elastic block 41 to form a limit, making it difficult for the elastic block 41 to fall out of the mounting groove 32, thereby further improving the elasticity. The limiting stability of the pressure block 41 within the mounting groove 32; the connecting rope 53 receives the power of the pressure block 42 and drives the extrusion rod 52 to slide along the inner wall of the extrusion channel 34 toward the direction of the key button 3, driving the extrusion plate 51 to approach the positioning ring 47 along the inner wall of the positioning cavity 461. The surface of the extrusion plate 51 presses against the surface of the positioning ring 47, the inner ring wall of the positioning ring 47 expands under pressure and presses against the inner wall of the pressing cavity 33, driving the connecting rod 1 55 and the connecting rod 2 56 to rotate toward each other. The ends of the connecting rod 1 55 and the connecting rod 2 56 rotate to press against the outer ring wall of the positioning ring 47, causing the inner ring wall of the positioning ring 47 to expand under pressure and press against the inner wall of the pressing cavity 33, realizing the detachable connection between the prompt block 2 and the key button 3, making it convenient for the operator to replace the worn prompt block 2, thereby extending the service life of the teaching pendant.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A teach pendant key membrane axis blind-pressing structure, characterized in that: It includes a host (1) and multiple prompt blocks (2). Multiple key buttons (3) are connected at intervals on the surface of the host (1). The multiple prompt blocks (2) are divided into multiple groups. Each group of prompt blocks (2) corresponds one-to-one with a key button (3). Multiple prompt blocks (2) in the same group are connected at intervals on the surface of the key button (3). The number and arrangement of each group of prompt blocks (2) correspond one-to-one with the coordinate system of the key button (3).

2. The teach pendant key membrane axis blind pressing structure according to claim 1, characterized in that: An installation component (4) is connected between the prompt block (2) and the key button (3). The installation component (4) includes an elastic block (41), which is connected to the surface of the prompt block (2). The surface of the key button (3) is provided with an installation groove (32) for the elastic block (41) to be embedded. The surface of the elastic block (41) abuts against the inner wall of the installation groove (32) and limits the prompt block (2) to the surface of the key button (3).

3. The teach pendant key membrane axis blind pressing structure according to claim 2, characterized in that: The mounting assembly (4) further includes a clamping block (42), a contact switch (43), an electromagnet (44), and a magnetic block (45). The bottom wall of the mounting groove (32) has a clamping cavity (33) for the clamping block (42) to slide. The surface of the elastic block (41) has a clamping groove (411) for the end of the clamping block (42) to be inserted. The electromagnet (44) is connected to the surface of the clamping block (42) facing the clamping groove (411), and the magnetic block (45) is connected to the surface of the clamping groove (411) facing the electromagnet (44). The inner wall of the mounting groove (32) is connected to the inner wall of the contact switch (43). The contact switch (43) is electrically connected to the electromagnet (44). When the contact switch (43) abuts against the surface of the elastic block (41) and conducts, the electromagnet (44) is energized and becomes magnetic. The electromagnet (44) and the magnetic block (45) attract each other with opposite poles, causing the end of the pressing block (42) to be embedded in the pressing groove (411). The surface of the pressing block (42) and the inner wall of the mounting groove (32) press the two sides of the elastic block (41) to form a limit.

4. The teach pendant key membrane axis blind pressing structure according to claim 2, characterized in that: The mounting assembly (4) also includes a plurality of elastic arc blocks (48), which are spaced apart and connected to the inner wall of the mounting groove (32). The plurality of elastic arc blocks (48) are spliced ​​together to form a circular plate and close the mounting groove (32). The elastic block (41) is embedded in the mounting groove (32) and squeezes the elastic arc block (48). The elastic arc block (48) is deformed under pressure. The inner wall of the mounting groove (32) and the surface of the elastic block (41) squeeze the two sides of the elastic arc block (48) to form a limit.

5. The teach pendant key membrane axis blind pressing structure according to claim 3, characterized in that: The mounting assembly (4) further includes a positioning ring (46) and a positioning ring bladder (47). The positioning ring (46) is connected to the surface of the key button (3). The inner ring of the positioning ring (46) surrounds the outer circumference of the prompt block (2). The inner wall of the positioning ring (46) has a positioning cavity (461) for the positioning ring bladder (47) to be embedded in. The outer circumference of the prompt block (2) has a clamping cavity (21) for the inner ring of the positioning ring bladder (47) to be embedded in.

6. The teach pendant key membrane axis blind pressing structure according to claim 5, characterized in that: The positioning ring (46) is connected to an extrusion assembly (5), which includes an extrusion plate (51) and an extrusion rod (52). The key button (3) has an extrusion channel (34) on its surface facing the positioning ring (46) for the extrusion rod (52) to slide. The sliding direction of the extrusion rod (52) is parallel to the sliding direction of the abutment block (42). The positioning ring (46) has an extrusion cavity (462) on its surface for the extrusion rod (52) to slide. The extrusion cavity (462) is connected to the positioning cavity (461). The extrusion plate (51) is connected to the end face of the extrusion rod (52) that protrudes from the positioning ring (46). The surface of the extrusion plate (51) abuts against the surface of the positioning ring bladder (47).

7. The teach pendant key membrane axis blind pressing structure according to claim 6, characterized in that: The extrusion assembly (5) also includes a connecting rope (53), the extrusion channel (34) is connected to the clamping cavity (33), one end of the connecting rope (53) is connected to the surface of the extrusion rod (52), the other end of the connecting rope (53) is connected to the surface of the clamping block (42), and the connecting rope (53) is in a taut state.

8. The teach pendant key membrane axis blind pressing structure according to claim 7, characterized in that: The extrusion assembly (5) further includes an elastic element (54), the elastic force of which is less than the magnetic force of the electromagnet (44). One end of the elastic element (54) in the direction of elastic force is connected to the rod surface of the extrusion rod (52), and the other end of the elastic element (54) in the direction of elastic force is connected to the inner wall of the extrusion channel (34). The elastic element (54) has the elastic force to drive the extrusion rod (52) to slide away from the key button (3), and the end face of the clamping block (42) tends to be flush with the inner wall of the mounting groove (32).

9. The teach pendant key membrane axis blind pressing structure according to claim 7, characterized in that: The extrusion assembly (5) further includes a first connecting rod (55) and a second connecting rod (56). One end of the first connecting rod (55) is rotatably connected to the surface of the extrusion plate (51) facing the positioning cavity (461), and the other end of the first connecting rod (55) is rotatably connected to the end of the second connecting rod (56). The other end of the second connecting rod (56) is rotatably connected to the inner wall of the positioning cavity (461). The rotatably connected ends of the first connecting rod (55) and the second connecting rod (56) abut against the outer wall of the positioning ring bladder (47). When the extrusion plate (51) extrudes the surface of the positioning ring bladder (47), it drives the first connecting rod (55) and the second connecting rod (56) to rotate in a direction closer to each other. The rotatably connected ends of the first connecting rod (55) and the second connecting rod (56) extrude against the outer wall of the positioning ring bladder (47).

10. The teach pendant key membrane axis blind pressing structure according to claim 9, characterized in that: The extrusion assembly (5) further includes a guide plate (57), which is connected to the surface of the extrusion plate (51) near the rotating shaft of the connecting rod (55). The surface of the guide plate (57) abuts against the rotating shaft of the connecting rod (55) and limits the connecting rod (55) to rotate in the direction closer to the extrusion rod (52).

Images