Motion device and machine tool having the same

Abstract

The application provides a motion device and a machine tool with the same. The motion device comprises a first movable structure and a second movable structure, any one of a first movable end of the first movable structure and a second movable end of the second movable structure is movably arranged in a direction close to or away from the other; a gear, a first rack and a second rack, the first rack and the second rack are engaged with the gear, the first rack and the second rack are arranged in an extension direction from the first movable end to the second movable end, and the teeth of the first rack are arranged opposite to the teeth of the second rack; wherein the first movable end is connected with the first rack, the second movable end is connected with the second rack, the first movable structure is a pneumatic cylinder or a hydraulic cylinder, and the second movable structure is a pneumatic cylinder or a hydraulic cylinder. Through the technical scheme provided by the application, the technical problem that the two movable ends of the motion device in the prior art are difficult to accurately perform synchronous motion can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motion devices, in particular to a motion device and a machine tool with the same. BACKGROUND

[0002] At present, in the field of modern industrial automation, especially in the industries of high precision requirements such as numerical control machine tools, automobile manufacturing, mold processing, aerospace and military industry, the precise synchronous motion of pneumatic or hydraulic system is the key to realize efficient and stable production process. The synchronous motion of pneumatic or hydraulic system usually relies on the coordinated movement of two or more active ends to ensure the precise alignment of objects in the processing or assembling process.

[0003] However, in order to realize the synchronous motion of the two active ends, the prior art usually adopts an electrical control method, which monitors the position of each active end in real time through a sensor, and adjusts the motion parameters through a controller to realize synchronization. However, this electrical control method is limited in some special environments. For example, in the presence of electromagnetic interference, flammable and explosive gases, high voltage electric field, etc., the use of electrical components may bring safety hazards or the risk of control failure. In addition, in some old equipment or systems, the cost of electrical control system modification is high, and the maintenance is complex, which is not conducive to rapid upgrading or adapting to new production needs. SUMMARY

[0004] The main purpose of the present application is to provide a motion device and a machine tool with the same, so as to solve the technical problem that the two active ends of the motion device in the prior art are difficult to accurately perform synchronous motion.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a motion device is provided, comprising:

[0006] A first active structure and a second active structure, any one of a first active end of the first active structure and a second active end of the second active structure is movably arranged in a direction approaching or away from the other;

[0007] A gear, a first rack and a second rack, the first rack and the second rack are engaged with the gear, the first rack and the second rack are arranged in the extension direction from the first active end to the second active end, and the tooth part of the first rack is arranged opposite to the tooth part of the second rack;

[0008] Wherein, the first active end is connected with the first rack, the second active end is connected with the second rack, the first active structure is a pneumatic cylinder or a hydraulic cylinder, and the second active structure is a pneumatic cylinder or a hydraulic cylinder.

[0009] Further, one of the first active end and the second active end is connected with one of the first rack and the second rack, and the motion device further comprises:

[0010] The connecting structure is provided with a mounting slot, one of the first movable end and the second movable end is inserted in the mounting slot, and one of the first rack and the second rack is located on one side of the connecting structure and connected with the connecting structure.

[0011] Further, the connecting structure comprises:

[0012] The first connecting piece and the second connecting piece, the mounting slot is arranged on the first connecting piece, and one of the first rack and the second rack is connected with the second connecting piece;

[0013] The first connecting piece and the second connecting piece are arranged in the extension direction from the first movable end to the first rack, one of the first movable end and the second movable end is connected with one end of the first connecting piece, and the other end of the first connecting piece is connected with the second connecting piece.

[0014] Further, the second connecting piece is connected with one of the first rack and the second rack close to one side of the connecting structure; or the second connecting piece is connected with one of the first rack and the second rack away from one side of the connecting structure; and / or,

[0015] The second connecting piece is movably arranged in the direction close to or away from the first connecting piece.

[0016] Further, the motion device further comprises:

[0017] The mounting piece is arranged between the first movable structure and the second movable structure, the mounting piece is provided with an assembly slot, the assembly slot is arranged in the extension direction from the first movable end to the second movable end, and the gear, at least part of the first rack and at least part of the second rack are arranged in the assembly slot;

[0018] The assembly slot has oppositely and spacedly arranged first slot wall and second slot wall, at least part of the first rack is arranged close to the first slot wall, and at least part of the second rack is arranged close to the second slot wall.

[0019] Further, the mounting piece comprises first mounting plate, second mounting plate and third mounting plate connected in sequence, the first mounting plate and the third mounting plate are oppositely arranged, and the first mounting plate, the second mounting plate and the third mounting plate enclose the assembly slot; one side of the first mounting plate close to the third mounting plate forms the first slot wall, and one side of the third mounting plate close to the first mounting plate forms the second slot wall;

[0020] The first rack is provided with first guide piece, the first slot wall is provided with second guide piece matched with the first guide piece, and the first guide piece and the second guide piece are arranged in the extension direction from the first movable end to the second movable end; and / or,

[0021] The second rack is provided with a third guide, the second slot wall is provided with a fourth guide which is guided and matched with the third guide, and the third guide and the fourth guide are both arranged along the extension direction of the first movable end to the second movable end; and / or,

[0022] The gear is detachably arranged in the assembly slot, and one of the first mounting plate and the second mounting plate is movably arranged along the direction of approaching or moving away from the other.

[0023] Further, the mounting member is provided with a lubricating channel, the lubricating channel is communicated with a lubricating medium source and communicated with the assembly slot; and / or,

[0024] The motion device further comprises a control member and a distance detection member which are connected with each other, the distance detection member is arranged on the mounting member, a detection end of the distance detection member is located on the side of the mounting member away from the gear and is used for detecting the interval between the first movable end and the second movable end, the first movable structure and the second movable structure are both connected with the control member, and the control member is used for controlling the first movable structure and the second movable structure to be in the running state of moving the first movable end and the second movable end or in the static state of making the first movable end and the second movable end static according to the detection result of the distance detection member.

[0025] Further, the gear is a helical gear, and the first rack and the second rack are both helical racks.

[0026] Further, the motion device further comprises:

[0027] A visual detection member is arranged on one side of the gear, a detection end of the visual detection member is arranged towards the gear and is used for detecting the meshing condition between the first rack and the gear and the meshing condition between the second rack and the gear;

[0028] A control member is connected with the first movable structure, the second movable structure and the visual detection member, so as to control the first movable structure and the second movable structure to be in the running state of moving the first movable end and the second movable end or in the static state of making the first movable end and the second movable end static according to the detection result of the visual detection member.

[0029] According to another aspect of the present application, a machine tool is provided, comprising the above-provided motion device.

[0030] By adopting the technical scheme of the present application, the first movable end of the first movable structure and the second movable end of the second movable structure can be kept in precise synchronous movement even without the intervention of sensors or electrical elements, by adopting the design of the gear meshing with the first rack and the second rack. This mechanical synchronization method overcomes the limitations of electrical control in certain special environments, while avoiding the drawback of the mechanical synchronization mechanism that the synchronization accuracy decreases after a long time of operation, ensuring the movement accuracy and equipment safety in complex or special environments. Such a setup is suitable for various types of pneumatic cylinders or hydraulic cylinders, whether single-acting cylinders or double-acting cylinders, and can adapt to different stroke and load requirements by adjusting the meshing relationship of the gear with the first rack and the second rack. This flexibility makes the present scheme widely applicable in different industrial fields. Moreover, the teeth of the first rack and the teeth of the second rack are oppositely arranged, plus the precise meshing of the gear, ensuring stability and reliability even under high speed, heavy load or complex working conditions, reducing vibration and displacement error during movement, and improving the overall equipment efficiency and product quality. Therefore, the technical scheme of the present application can solve the technical problem that the two movable ends of the movement device in the prior art are difficult to accurately synchronize. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 A structural schematic diagram of a movement device according to embodiment one of the present application is shown;

[0033] Figure 2 A structural schematic diagram of a movement device according to embodiment one of the present application is shown; Figure 1 An enlarged schematic diagram of the structure at A in FIG. 4 is shown;

[0034] Figure 3 A partial front view of a movement device according to embodiment one of the present application is shown;

[0035] Figure 4 A partial top view of a movement device according to embodiment one of the present application is shown.

[0036] Among the above drawings, the following reference signs are included:

[0037] 10, first movable structure;

[0038] 11, first movable end;

[0039] 20, second movable structure;

[0040] 21, second movable end;

[0041] 30. Gear;

[0042] 40. First rack;

[0043] 50. Second rack;

[0044] 60. Connection structure;

[0045] 61. Mounting slot;

[0046] 62. First connecting member; 621. First connecting plate; 622. Second connecting plate; 623. Third connecting plate;

[0047] 63. Second connecting component;

[0048] 64. Third connector;

[0049] 70. Installation components;

[0050] 71. Assembly slot; 711. First slot wall; 712. Second slot wall;

[0051] 72. First mounting plate;

[0052] 73. Second mounting plate;

[0053] 74. Third mounting plate. Detailed Implementation

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] like Figures 1 to 4 As shown, Embodiment 1 of the present invention provides a motion device, which includes a first movable structure 10 and a second movable structure 20. Either the first movable end 11 of the first movable structure 10 or the second movable end 21 of the second movable structure 20 is movably disposed in a direction approaching or away from the other. The motion device also includes a gear 30, a first rack 40, and a second rack 50. Both the first rack 40 and the second rack 50 mesh with the gear 30. Both the first rack 40 and the second rack 50 extend along the extension direction from the first movable end 11 to the second movable end 21, and the teeth of the first rack 40 are arranged opposite to the teeth of the second rack 50. The first movable end 11 is connected to the first rack 40, and the second movable end 21 is connected to the second rack 50. The first movable structure 10 is a pneumatic cylinder or a hydraulic cylinder, and the second movable structure 20 is a pneumatic cylinder or a hydraulic cylinder.

[0056] The movement device provided by the embodiment one of the present application can ensure the precise synchronous movement of the first active end 11 of the first active structure 10 (pneumatic cylinder or hydraulic cylinder) and the second active end 21 of the second active structure 20 (pneumatic cylinder or hydraulic cylinder) even without the intervention of sensors or electrical elements, by adopting the design of the gear 30 meshing with the first rack 40 and the second rack 50. This mechanical synchronization method overcomes the limitations of electrical control in certain special environments, while avoiding the drawback of the decline in synchronization accuracy of mechanical synchronization mechanisms after long-term operation, ensuring the movement accuracy and equipment safety in complex or special environments. Such a setting is suitable for various types of pneumatic cylinders or hydraulic cylinders, whether single-acting cylinders or double-acting cylinders, and can adapt to different stroke and load requirements by adjusting the meshing relationship of the gear 30 with the first rack 40 and the second rack 50. This flexibility makes the present solution widely applicable in different industrial fields. Moreover, the teeth of the first rack 40 and the teeth of the second rack 50 are oppositely arranged, and the precise meshing of the gear 30 ensures stability and reliability even under high speed, heavy load or complex working conditions, reduces vibration and displacement error during movement, and improves the working efficiency and product quality of the overall equipment. Therefore, the movement device provided by the present embodiment can solve the technical problem that the two active ends of the movement device in the prior art are difficult to accurately synchronize.

[0057] Specifically, the first active structure 10 and the second active structure 20 have the same cylinder diameter, the same stroke and the same load, but the moving directions of the first active end 11 and the second active end 21 are opposite.

[0058] Specifically, one of the first active end 11 and the second active end 21 is connected with one of the first rack 40 and the second rack 50, and the movement device further comprises a connecting structure 60, the connecting structure 60 is provided with a mounting slot 61, one of the first active end 11 and the second active end 21 is inserted in the mounting slot 61, and one of the first rack 40 and the second rack 50 is located on one side of the connecting structure 60 and connected with the connecting structure 60. By inserting and fixing the active end in the mounting slot 61 of the connecting structure 60, the structural stability between the active end and the rack can be effectively enhanced, the displacement and deformation during movement can be reduced, and thus the accuracy and reliability of the movement device can be improved. The design of the mounting slot 61 allows the first active end 11 or the second active end 21 to be easily inserted and fixed on the connecting structure 60, simplifying the installation steps and reducing the need for professional tools. At the same time, this modular connection method facilitates maintenance or replacement of parts, reduces equipment downtime and improves production efficiency.

[0059] It should be noted that the first movable end 11 is connected with the first rack 40, the first movable end 11 is inserted into the mounting groove 61, and the first rack 40 is located on one side of the connecting structure 60 and connected with the connecting structure 60; or the second movable end 21 is connected with the second rack 50, the second movable end 21 is inserted into the mounting groove 61, and the second rack 50 is located on one side of the connecting structure 60 and connected with the connecting structure 60.

[0060] Specifically, the connecting structure 60 includes a first connecting piece 62 and a second connecting piece 63, the mounting groove 61 is arranged on the first connecting piece 62, and one of the first rack 40 and the second rack 50 is connected with the second connecting piece 63. Wherein, the first connecting piece 62 and the second connecting piece 63 are arranged in extension along the extension direction of the first movable end 11 to the first rack 40, one of the first movable end 11 and the second movable end 21 is connected with one end of the first connecting piece 62, and the other end of the first connecting piece 62 is connected with the second connecting piece 63. By adopting such structure arrangement, the split type connection design improves the connection flexibility between the components of the motion device, so that the assembly can adapt to different sizes of pneumatic cylinders or hydraulic cylinders, and the versatility and expandability of the motion device are enhanced. Ensuring that the first connecting piece 62 and the second connecting piece 63 extend along the extension direction of the first movable end 11 to the first rack 40 optimizes the force transmission path during the motion process, so that the pneumatic or hydraulic force can be smoothly transmitted to the gear 30 through the rack, and then transmitted to the rack on the other side and the pneumatic / hydraulic cylinder through the gear 30. This design improves the efficiency of force transmission and reduces energy loss. By accurately controlling the connection between the first connecting piece 62 and the second connecting piece 63, the vibration of the pneumatic cylinder or the hydraulic cylinder during the motion process can be effectively reduced, the close meshing between the rack and the gear 30 is maintained, and the stability and precision of the entire motion device are improved, so that the two movable ends can realize high-precision synchronous motion.

[0061] Specifically, the first connecting piece 62 includes a first connecting plate 621, a second connecting plate 622 and a third connecting plate 623 connected in sequence, the first connecting plate 621 and the third connecting plate 623 are oppositely arranged, and the first connecting plate 621, the second connecting plate 622 and the third connecting plate 623 surround the mounting groove 61.

[0062] Specifically, the connecting structure 60 further includes a third connecting piece 64, at least part of the third connecting piece 64 is inserted into the mounting groove 61, and the second connecting piece 63 is connected with the first connecting piece 62 through the third connecting piece 64.

[0063] Specifically, the second connecting piece 63 is connected to one of the first rack 40 and the second rack 50 near a side of the connecting structure 60; or, the second connecting piece 63 is connected to one of the first rack 40 and the second rack 50 away from a side of the connecting structure 60. With such a structure, the connection position of the second connecting piece 63 to the first rack 40 or the second rack 50 is flexible and adjustable, which increases the adaptability of the motion device in different application scenarios, and makes the connection mode of the rack to the pneumatic cylinder or the hydraulic cylinder more diversified, meeting the needs of different mechanical layouts.

[0064] In the embodiment, the connecting structure 60 is two, one of the two connecting structures 60 is connected to the first rack 40, and the other is connected to the second rack 50. The second connecting piece 63 of one of the two connecting structures 60 is connected to the first rack 40 away from a side of the one of the two connecting structures 60. The second connecting piece 63 of the other of the two connecting structures 60 is connected to the second rack 50 near a side of the other of the two connecting structures 60.

[0065] Specifically, the second connecting piece 63 is movably arranged in the direction of approaching or moving away from the first connecting piece 62. With such a structure, the second connecting piece 63 is movably arranged in the direction of approaching or moving away from the first connecting piece 62, and such dynamic adjustment capability enables the motion device to adapt to different working strokes and activity ranges, that is, even if the length of the rack is not enough, it can also be compensated by the movement of the second connecting piece 63, and the synchronous movement of the pneumatic cylinder or the hydraulic cylinder is maintained.

[0066] In the embodiment, the motion device further comprises a mounting member 70 arranged between the first movable structure 10 and the second movable structure 20, the mounting member 70 is provided with an assembly slot 71 extending along the extension direction of the first movable end 11 to the second movable end 21, and the gear 30, at least part of the first rack 40 and at least part of the second rack 50 are arranged in the assembly slot 71. The assembly slot 71 has a first slot wall 711 and a second slot wall 712 arranged oppositely and spaced apart, at least part of the first rack 40 is arranged in abutment with the first slot wall 711, and at least part of the second rack 50 is arranged in abutment with the second slot wall 712. With such a structure, the assembly slot 71 of the mounting member 70 is designed to effectively integrate the layout of the gear 30, the first rack 40 and the second rack 50, not only saving the floor area of the overall motion device, but also providing good protection for these key motion components, avoiding direct damage to them by external environmental factors (such as dust, collision), prolonging the service life of the components. In addition, the first slot wall 711 and the second slot wall 712 in the assembly slot 71 limit the lateral displacement of the rack during movement by abutting the first rack 40 and the second rack 50, improving the meshing accuracy between the rack and the gear 30, thereby ensuring the stability and synchronization of the motion device during operation.

[0067] Specifically, the mounting member 70 comprises a first mounting plate 72, a second mounting plate 73 and a third mounting plate 74 connected in sequence, the first mounting plate 72 and the third mounting plate 74 are arranged oppositely, and the first mounting plate 72, the second mounting plate 73 and the third mounting plate 74 enclose the assembly slot 71; one side of the first mounting plate 72 close to the third mounting plate 74 forms the first slot wall 711, and one side of the third mounting plate 74 close to the first mounting plate 72 forms the second slot wall 712. With such a structure, not only the structural stability of the mounting member 70 is increased, but also the shape and size accuracy of the assembly slot 71 is ensured, providing a stable working environment for the rack and the gear 30.

[0068] Specifically, the first rack 40 is provided with a first guide member, and the first slot wall 711 is provided with a second guide member matched with the first guide member, and the first guide member and the second guide member extend along the extension direction of the first movable end 11 to the second movable end 21. In this way, the guide matching of the first guide member and the second guide member ensures the linear motion of the first rack 40 in the assembly slot 71, reduces the meshing error caused by rack deviation, and improves the motion accuracy. Moreover, the design of the guide member reduces the direct contact between the rack and the mounting member 70, reduces the wear during movement, thereby prolonging the service life of the first rack 40 and the mounting member 70 and reducing the maintenance cost.

[0069] Specifically, the second rack 50 is provided with a third guide, and the second slot wall 712 is provided with a fourth guide that is adaptively guided by the third guide. Both the third guide and the fourth guide extend along the extension direction of the first movable end 11 to the second movable end 21. In this way, the precise guidance of the second rack 50 is achieved, ensuring the linear motion of the second rack 50 on the second slot wall 712, forming symmetry with the motion of the first rack 40, and enhancing the synchronization performance of the entire motion device.

[0070] Specifically, the first guide and the third guide are both guide protrusions, and the second guide and the fourth guide are both guide grooves.

[0071] Specifically, the gear 30 is detachably arranged in the assembly slot 71, and one of the first mounting plate 72 and the second mounting plate 73 is movably arranged in the direction of approaching or moving away from the other. With such a structure, the detachable design of the gear 30 makes it easy to replace the worn or damaged gear 30 during maintenance and upgrading, without the need to disassemble the entire motion device, greatly reducing maintenance costs and time. At the same time, the movability of one of the first mounting plate 72 and the second mounting plate 73 provides the possibility of fine-tuning the position of the gear 30, which helps to maintain the precise engagement between the gear and the rack after a long time of operation, improving the precision and stability of the motion. Allowing the first mounting plate 72 or the second mounting plate 73 to move in the direction of approaching or moving away from the other under the guidance of the assembly slot 71, this design increases the flexibility of the structure, allowing the space in the assembly slot 71 to be fine-tuned without changing the layout of the main components, to accommodate gears 30 or racks of different sizes, while maintaining the structural stability and mechanical strength of the entire motion device.

[0072] In this embodiment, the mounting member 70 is provided with a lubrication channel that is in communication with a lubricating medium source and is in communication with the assembly slot 71. In this way, the lubrication channel provided on the mounting member 70 can ensure that key motion components such as the gear 30, the first rack 40, and the second rack 50 are adequately lubricated. This design not only improves the lubrication efficiency of the motion components, reducing friction and wear during motion, but also enhances the protection of the components, prolongs the service life of the motion device, and reduces maintenance costs. By being in communication with the lubricating medium source, automated lubrication can be achieved, reducing the need for manual lubrication and avoiding the risk of direct contact with the motion components by the operator, improving operational safety. At the same time, the automated lubrication system helps to maintain the stability and reliability of the motion device under various working conditions.

[0073] Specifically, the motion device further comprises a control member and a distance detection member connected with each other, the distance detection member is arranged on the mounting member 70, a detection end of the distance detection member is located on a side of the mounting member 70 away from the gear 30 and is used to detect the interval between the first movable end 11 and the second movable end 21, the first movable structure 10 and the second movable structure 20 are both connected with the control member, and the control member is used to control the first movable structure 10 and the second movable structure 20 to be in a running state in which the first movable end 11 and the second movable end 21 are both moved or a static state in which the first movable end 11 and the second movable end 21 are both stationary according to the detection result of the distance detection member. By adopting such a structure, the interval between the first movable end 11 and the second movable end 21 can be monitored in real time through the distance detection member, and such a real-time monitoring capability provides key feedback information for the control member, so that the control member can accurately control the motion state of the first movable structure 10 and the second movable structure 20 according to the real-time detection result, and the synchronization precision and control efficiency of the motion device are improved. This provides a safety mechanism for the motion device, and when it is detected that the interval between the movable ends exceeds a preset threshold, the control member can immediately stop the motion of the pneumatic cylinder or the hydraulic cylinder, preventing mechanical damage or operation accidents that may be caused by synchronization motion disorder, and ensuring the safety of the equipment and the operator.

[0074] Specifically, when the distance detection member detects that the interval between the first movable end 11 and the second movable end 21 is less than a preset threshold, the first movable structure 10 is in a first static state in which the first movable end 11 is stationary, and the second movable structure 20 is in a second static state in which the second movable end 21 is stationary; when the distance detection member detects that the interval between the first movable end 11 and the second movable end 21 is greater than or equal to the preset threshold, the first movable structure 10 is in a first running state in which the first movable end 11 is moved, and the second movable structure 20 is in a second running state in which the second movable end 21 is moved.

[0075] Specifically, the gear 30 is a helical gear, and the first rack 40 and the second rack 50 are both helical racks. In this way, the engagement between the helical gear and the helical rack can effectively improve the efficiency and stability of power transmission. Compared with a spur gear, the helical gear can reduce noise and vibration during engagement, so that the motion is more stable, and is particularly suitable for occasions requiring high-precision synchronous motion. During work, the tooth surface contact of the helical structure is gradual, which can avoid the instantaneous impact of a spur gear, prolong the service life of the rack and the gear 30, reduce maintenance costs, and improve the reliability and durability of the entire motion device.

[0076] Specifically, the motion device further comprises a visual detection member and a control member, the visual detection member is arranged on one side of the gear 30, a detection end of the visual detection member is arranged towards the gear 30 and is used to detect the meshing condition between the first rack 40 and the gear 30 and the meshing condition between the second rack 50 and the gear 30. The first movable structure 10, the second movable structure 20 and the visual detection member are all connected with the control member, so as to control the first movable structure 10 and the second movable structure 20 to be in the running state of moving the first movable end 11 and the second movable end 21 or the static state of keeping the first movable end 11 and the second movable end 21 static according to the detection result of the visual detection member. By adopting such a structure, key information support is provided for the intelligent control of the motion device, and the precision of synchronous motion is ensured. When the visual detection member detects that there is an abnormal meshing condition between the rack and the gear 30 (such as rack deviation, gear wear, etc.), the control member can quickly respond according to the detection result, adjust the motion state of the first movable structure 10 and the second movable structure 20, and make it be in the static state, so as to prevent further mechanical failure and equipment damage, improve the operation safety and stability of the equipment. The monitoring data of the visual detection member can be used for intelligent maintenance of the equipment, the change trend of the meshing condition is analyzed, potential faults of the gear 30 and the rack are predicted, maintenance or replacement is carried out in advance, unplanned equipment downtime is avoided, maintenance cost is reduced, and the operation efficiency of the equipment is improved.

[0077] Specifically, the detection end of the visual detection device is equipped with a high-resolution industrial camera and a corresponding lighting system, such as an LED light source, to ensure that the details between the rack and the gear 30 are clearly captured. The detection end is set in a position that can fully cover the area of the gear 30 and the rack engaged with it, and the angle is ensured to ensure that the light can be perpendicular to the engagement surface of the rack and the gear 30, reducing the influence of shadows and uneven brightness on image quality. According to the running speed of the motion device, the capture frequency of the industrial camera is set to ensure that each engagement of the rack and the gear 30 can be recorded and analyzed. Using image processing techniques such as gain control, image sharpening, background subtraction, etc., to ensure that the captured images are clear and have high contrast, facilitating subsequent analysis. Through image processing algorithms such as feature point detection, image alignment technology, to ensure that each captured image can be accurately aligned and preprocessed, removing noise in the image and improving analysis accuracy. According to the obtained image, by identifying the relative position change of the rack edge and the gear 30 tooth surface, it is judged whether the rack is offset, to ensure the accuracy of synchronous motion. According to the obtained image, analyze the profile change of the gear 30 tooth surface, identify the degree of wear, and warn of possible gear damage that may affect synchronous motion performance. When serious engagement abnormalities are detected, such as severe rack offset or severe gear 30 wear, the control device should immediately stop the motion of the pneumatic cylinder or hydraulic cylinder to avoid further equipment damage. The images and analysis results captured by the visual detection device are recorded for a long time, and through data analysis techniques such as statistical analysis, trend prediction, etc., to identify potential maintenance needs of the equipment, to achieve predictive maintenance.

[0078] Embodiment two of the present application provides a machine tool, which includes the motion device provided in embodiment one.

[0079] The machine tool provided by the second embodiment of the present application ensures that the first movable end 11 of the first movable structure 10 (pneumatic cylinder or hydraulic cylinder) and the second movable end 21 of the second movable structure 20 (pneumatic cylinder or hydraulic cylinder) maintain precise synchronous movement even without the intervention of sensors or electrical elements, through the design of the gear 30 meshing with the first rack 40 and the second rack 50. This mechanical synchronization method overcomes the limitations of electrical control in certain special environments, while avoiding the drawback of the mechanical synchronization mechanism that the synchronization accuracy decreases after a long time of operation, ensuring the movement accuracy and equipment safety in complex or special environments. Such a setup is suitable for various types of pneumatic cylinders or hydraulic cylinders, whether single-acting cylinders or double-acting cylinders, and can adapt to different stroke and load requirements by adjusting the meshing relationship of the gear 30 with the first rack 40 and the second rack 50. This flexibility makes the present solution widely applicable in different industrial fields. Moreover, the teeth of the first rack 40 are oppositely arranged with the teeth of the second rack 50, plus the precise meshing of the gear 30, ensuring stability and reliability even under high speed, heavy load or complex working conditions, reducing vibration and displacement error during movement, and improving the overall equipment work efficiency and product quality. Therefore, through the machine tool provided by the present embodiment, the technical problem that the two movable ends of the movement device in the prior art are difficult to accurately synchronize movement can be solved.

[0080] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects: In the case where sensors and other electrical elements are not supported, two pneumatic / hydraulic cylinders with the same cylinder diameter, the same stroke and the same load but opposite directions are made to realize synchronous movement, such as double-door driving cylinders.

[0081] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0082] The foregoing is considered as illustrative only of the principles of the application. Other variations and modifications are possible in light of the above teachings. Therefore, the scope of the application is not intended to be limited to the particular embodiments described, but is to be accorded the broadest scope consistent with the scope of the claims. Without intent to limit the scope of the application, exemplary embodiments of the application are set forth below. It is, however, contemplated that other embodiments might fall within the scope of the application. To the extent that they are inconsistent, the reference in this specification to singular comprise a reference to the plural or vice versa and male and female referents include both male and female unless explicitly stated otherwise. Furthermore, to the extent that "comprising", "including", containing", listed

[0083] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0084] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", "lower", "bottom", and the like can be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations of the devices in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are turned over, the device described as "above" or "above" the other device or structure will be positioned "below" or "below" the other device or structure. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0085] In addition, it should be noted that the use of "first", "second", and the like words to qualify elements does not have a special meaning, and therefore should not be construed as limiting the scope of protection of the present application, unless otherwise stated.

[0086] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A motion device, characterized by, The utility model relates to a kind of movement devices, including: First movable structure (10) and second movable structure (20), any one of the first movable end (11) of the first movable structure (10) and the second movable end (21) of the second movable structure (20) is movably arranged in the direction of approaching or away from each other; Gear (30), first rack (40) and second rack (50), the first rack (40) and the second rack (50) are engaged with the gear (30), the first rack (40) and the second rack (50) are arranged in the extension direction of the first movable end (11) to the second movable end (21), and the tooth part of the first rack (40) is used to be oppositely arranged with the tooth part of the second rack (50); Wherein, the first movable end (11) is connected with the first rack (40), the second movable end (21) is connected with the second rack (50), the first movable structure (10) is pneumatic cylinder or hydraulic cylinder, the second movable structure (20) is pneumatic cylinder or hydraulic cylinder, the first movable end (11) is inserted in mounting groove (61), and the second movable end (21) is inserted in the mounting groove (61); The movement device further includes a connecting structure (60), the connecting structure (60) includes a first connecting member (62) and a second connecting member (63), the first connecting member (62) includes a first connecting plate (621), a second connecting plate (622) and a third connecting plate (623) connected in sequence, the first connecting plate (621) and the third connecting plate (623) are oppositely arranged, and the first connecting plate (621), the second connecting plate (622) and the third connecting plate (623) enclose the mounting groove (61); The connecting structure (60) further includes a third connecting member (64), at least part of the third connecting member (64) is inserted in the mounting groove (61), and the second connecting member (63) is connected with the first connecting member (62) through the third connecting member (64); The second connecting member (63) of one of the two connecting structures (60) is connected with the side of the first rack (40) away from one of the two connecting structures (60), and the second connecting member (63) of the other of the two connecting structures (60) is connected with the side of the second rack (50) close to the other of the two connecting structures (60), and the second connecting member (63) is movably arranged in the direction of approaching or away from the first connecting member (62); The movement device further includes a mounting member (70) arranged between the first movable structure (10) and the second movable structure (20), the mounting member (70) is provided with an assembly groove (71), the assembly groove (71) is arranged in the extension direction of the first movable end (11) to the second movable end (21), and at least part of the gear (30), the first rack (40) and the second rack (50) are arranged in the assembly groove (71). The assembling groove (71) has oppositely and spacedly arranged first groove wall (711) and second groove wall (712), at least part of the first rack (40) is arranged close to the first groove wall (711), and at least part of the second rack (50) is arranged close to the second groove wall (712); The mounting member (70) comprises first mounting plate (72), second mounting plate (73) and third mounting plate (74) connected in sequence, the first mounting plate (72) and the third mounting plate (74) are oppositely arranged, the first mounting plate (72), the second mounting plate (73) and the third mounting plate (74) enclose the assembling groove (71); one side of the first mounting plate (72) close to the third mounting plate (74) forms the first groove wall (711), and one side of the third mounting plate (74) close to the first mounting plate (72) forms the second groove wall (712), The gear (30) is detachably arranged in the assembling groove (71), and one of the first mounting plate (72) and the second mounting plate (73) is movably arranged along the direction close to or away from the other.

2. The motion device according to claim 1, wherein, The first connecting member (62) and the second connecting member (63) are both arranged along the extension direction of the first movable end (11) to the first rack (40).

3. The motion device according to claim 1, wherein, The first rack (40) is provided with first guide member, the first groove wall (711) is provided with second guide member matched with the first guide member, and the first guide member and the second guide member are both arranged along the extension direction of the first movable end (11) to the second movable end (21); and / or, The second rack (50) is provided with third guide member, the second groove wall (712) is provided with fourth guide member matched with the third guide member, and the third guide member and the fourth guide member are both arranged along the extension direction of the first movable end (11) to the second movable end (21).

4. The motion device of claim 1, wherein, The mounting member (70) is provided with lubricating channel, the lubricating channel is connected with lubricating medium source and communicates with the assembling groove (71); and / or, The motion device further comprises a control member and a distance detection member connected with each other, the distance detection member is arranged on the mounting member (70), a detection end of the distance detection member is located on a side of the mounting member (70) away from the gear (30) and is used for detecting a distance between the first movable end (11) and the second movable end (21), the first movable structure (10) and the second movable structure (20) are both connected with the control member, and the control member is used for controlling the first movable structure (10) and the second movable structure (20) to be in an operating state of moving the first movable end (11) and the second movable end (21) or a static state of keeping the first movable end (11) and the second movable end (21) static according to a detection result of the distance detection member.

5. The motion device of claim 1 or 2, wherein, The gear (30) is a helical gear (30), and the first rack (40) and the second rack (50) are both helical racks.

6. The motion device of claim 1 or 2, wherein, The motion device further comprises: a visual detection member arranged on a side of the gear (30), a detection end of the visual detection member is arranged towards the gear (30) and is used for detecting meshing conditions between the first rack (40) and the gear (30) and between the second rack (50) and the gear (30); a control member, the first movable structure (10), the second movable structure (20) and the visual detection member are all connected with the control member, so as to control the first movable structure (10) and the second movable structure (20) to be in an operating state of moving the first movable end (11) and the second movable end (21) or a static state of keeping the first movable end (11) and the second movable end (21) static according to a detection result of the visual detection member.

7. A machine tool, characterized by comprise: the motion device according to any one of claims 1 to 6.

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