Press-fit jig and press-fit equipment

Abstract

The utility model is suitable for the technical field of pressing jigs, and provides a pressing jig and a pressing device.The pressing jig comprises a bearing module and a pressing device.The bearing module comprises a first bearing assembly and a second bearing assembly, the first bearing assembly is used for bearing a first workpiece, and the second bearing assembly is used for bearing a second workpiece; the second bearing assembly is movably arranged on the first bearing assembly and is provided with a pressing position for pressing and assembling the second workpiece on the first workpiece and an avoiding position for separating the second workpiece before pressing and assembling from the first workpiece; the pressing module and the bearing module are oppositely arranged, the pressing module can move relative to the bearing module, and the pressing module has an avoiding state for avoiding the bearing module and a pressing state for abutting against the second bearing assembly to enable the second bearing assembly to be switched from the avoiding position to the pressing position.

Description

Technical Field

[0001] This application belongs to the field of pressing fixture technology, and more specifically, relates to a pressing fixture and pressing equipment. Background Technology

[0002] In the field of precision mechanical assembly, there is often an assembly process involving pressing a rotating shaft into the corresponding hole in a bracket. This type of interference fit requires extremely high coaxiality and perpendicularity to avoid uneven loading, abnormal noise, or jamming. Currently, for small-batch or trial production, this is mostly done manually by operators. That is, the operator first fixes the bracket, then aligns the shaft section to be assembled with its hole based on experience, and then uses a tool to press it in.

[0003] However, the existing manual shaft assembly method has low production efficiency and is difficult to meet the high assembly precision requirements between the shaft segment to be assembled and the corresponding hole position during mass production. Assembly efficiency and assembly quality need to be improved. Utility Model Content

[0004] The purpose of this application is to provide a pressing fixture and pressing equipment, which aims to solve the technical problem that the assembly efficiency and assembly quality of the manual rotating shaft assembly method in the prior art need to be improved.

[0005] To achieve the above objectives, according to one aspect of this application, a pressing fixture is provided for pressing and assembling a first workpiece and a second workpiece. The pressing fixture includes a support module and a pressing module. The support module includes a first support component and a second support component. The first support component is used to support the first workpiece, and the second support component is used to support the second workpiece. The second support component is movably disposed on the first support component and has a pressing position for pressing and assembling the second workpiece onto the first workpiece, and a clearance position for separating the second workpiece from the first workpiece before pressing and assembling. The pressing module is disposed opposite to the support module and is movable relative to the support module. The pressing module has a clearance state for clearance from the support module and a pressing state for pressing the second support component, causing the second support component to switch from the clearance position to the pressing position.

[0006] Optionally, the second support component includes a movable platform and a first elastic element. The movable platform is movably disposed on the first support component along the direction toward or away from the pressing module to support the second workpiece. The first elastic element is disposed between the movable platform and the first support component to apply an elastic force toward the pressing module to the movable platform, so that the second support component maintains the avoidance position when the pressing module is in the avoidance state.

[0007] Optionally, the first support component includes a fixed platform for supporting the first workpiece; a first guide structure is provided on the fixed platform, and a second guide structure is provided on the movable platform. The movable platform is slidably installed on the first support component in a direction toward or away from the pressing module through the sliding engagement of the second guide structure and the first guide structure.

[0008] Optionally, the pressing module includes a pressing body and an elastic pressing component. The elastic pressing component is movably disposed on the pressing body in a direction toward or away from the bearing module. When the pressing module is in the pressing state, the elastic pressing component presses against the second bearing component, causing the second bearing component to switch from a clearance position to a pressing position.

[0009] Optionally, the elastic pressing assembly includes a pressing block and a second elastic member. The pressing block is movably disposed on the pressing body in a direction toward or away from the bearing module, and the second elastic member is disposed between the pressing block and the pressing body to apply an elastic force to the pressing block in the direction toward the bearing module. When the pressing module is in the pressing state, the pressing block and the second bearing assembly are pressed together, and the second elastic member applies an elastic pressing force toward the bearing module to the second bearing assembly through the pressing block.

[0010] Optionally, the pressing module further includes a floating leveling component, which includes a floating limiting member and a third elastic member. The floating limiting member is movably disposed on the pressing body in a direction toward or away from the bearing module, and the third elastic member is disposed between the floating limiting member and the pressing body. It is used to apply an elastic force away from the bearing module to the pressing body when the floating limiting member abuts against the first bearing module, so as to adjust the posture of the pressing body relative to the bearing module.

[0011] Optionally, there are multiple floating leveling components, which are arranged at intervals along the circumference of the pressing body.

[0012] Optionally, the bearing module is provided with a third guide structure, and the pressing module is provided with a fourth guide structure. The fourth guide structure is used to slide with the third guide structure to guide the movement of the pressing module.

[0013] Optionally, the first support component is provided with a vacuum adsorption structure. When the first workpiece is supported on the first support component, the vacuum adsorption structure corresponds to the position of the first workpiece and can be connected to an external vacuum source to adsorb and fix the first workpiece on the first support component.

[0014] According to another aspect of this application, a pressing device is provided, the pressing device including a pressing fixture, the pressing fixture being the pressing fixture described above.

[0015] The beneficial effects of the pressing fixture provided in this application are as follows: Compared with the prior art, the pressing fixture provided in this application can perform separate pre-positioning of the first workpiece and the second workpiece through the first bearing component and the second bearing component, ensuring the accuracy and repeatability of the initial position of the first workpiece and the second workpiece, thereby reducing the off-center load of the pressing assembly caused by the error of the manual alignment angle, improving the accuracy and consistency of the pressing assembly, and by pressing the second bearing component against the pressing module and driving it to move from the avoidance position to the pressing position, the pressing assembly between the second workpiece and the first workpiece can be achieved, thereby improving the efficiency of the pressing assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the pressing fixture provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the pressing fixture from another perspective, provided in an embodiment of this application.

[0019] Figure 3 A cross-sectional schematic diagram of the pressing fixture provided in the embodiments of this application;

[0020] Figure 4 A cross-sectional schematic diagram of a pressing fixture in another location provided in an embodiment of this application;

[0021] Figure 5 A cross-sectional schematic diagram of a pressing fixture in another position provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the active platform provided in the embodiments of this application;

[0023] Figure 7 A schematic diagram of the structure of a load-bearing module with some components removed, provided in an embodiment of this application;

[0024] The details of the reference numerals used in the above figures are as follows:

[0025] 10. Bearing module; 11. First bearing component; 111. Fixed platform; 1111. First guide structure; 112. Vacuum adsorption structure; 12. Second bearing component; 121. Movable platform; 1211. Second guide structure; 122. First elastic element; 13. Third guide structure;

[0026] 20. Pressing module; 21. Pressing body; 22. Elastic pressing component; 221. Pressing block; 222. Second elastic element; 23. Floating leveling component; 231. Floating limiting element; 232. Third elastic element; 24. Fourth guide structure. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] As described in the background section, in the field of precision mechanical assembly, there is often an assembly process involving pressing a shaft into the corresponding hole in a bracket. This type of interference fit requires extremely high coaxiality and perpendicularity to avoid uneven loading, abnormal noise, or jamming. Currently, for small-batch or trial production, this is mostly done manually by operators. The operator first fixes the bracket, then aligns the shaft segment to be assembled with its corresponding hole based on experience, and finally presses it in using a tool. However, the existing manual shaft assembly method has low production efficiency and cannot meet the high assembly precision requirements between the shaft segment and its corresponding hole in mass production. Assembly efficiency and quality need to be improved.

[0032] See Figures 1 to 7 As shown, in order to solve the above problems, according to one aspect of this application, an embodiment of this application provides a pressing fixture for pressing and assembling a first workpiece and a second workpiece. The pressing fixture includes a support module 10 and a pressing module 20. The support module 10 includes a first support component 11 and a second support component 12. The first support component 11 is used to support the first workpiece, and the second support component 12 is used to support the second workpiece. The second support component 12 is movably disposed on the first support component 11 and has a pressing position for pressing and assembling the second workpiece on the first workpiece, and a clearance position for separating the second workpiece from the first workpiece before pressing and assembling. The pressing module 20 is disposed opposite to the support module 10 and is movable relative to the support module 10. The pressing module 20 has a clearance state for clearance from the support module 10 and a pressing state for pressing the second support component 12, causing the second support component 12 to switch from the clearance position to the pressing position. The pressing fixture provided in this embodiment can perform separate pre-positioning of the first workpiece and the second workpiece through the first bearing component 11 and the second bearing component 12, ensuring the accuracy and repeatability of the initial positions of the first and second workpieces. This reduces the off-center loading of the pressing assembly caused by manual alignment angle errors, and improves the accuracy and consistency of the pressing assembly. By pressing the second bearing component 12 with the pressing module 20, driving it to move from the avoidance position to the pressing position, the pressing assembly between the second workpiece and the first workpiece can be achieved, improving the efficiency of the pressing assembly. In some embodiments, the first workpiece in this embodiment is a rotating shaft to be assembled, and the second workpiece is a rotating shaft bracket with mounting holes adapted to the rotating shaft to be assembled. In this case, the separate pre-positioning of the first and second workpieces by the first bearing component 11 and the second bearing component 12 refers to aligning the mounting holes of the rotating shaft to be assembled with those of the rotating shaft bracket. In other embodiments, the first and second workpieces in this embodiment can also be precision components such as bearings and housings, pins and connecting rods, etc., that require high-precision alignment and pressing assembly.

[0033] It should be noted that, in this embodiment, the bearing module 10 refers to the component group in the pressing fixture used to position and support the workpieces to be assembled, namely the first workpiece and the second workpiece; the first bearing assembly 11 refers to the base part in the bearing module 10 used to fix the first workpiece; the second bearing assembly 12 refers to the movable part in the bearing module 10 used to support the second workpiece and can move relative to the first bearing assembly 11; the pressing position refers to the final working position of the second bearing assembly 12 during its movement stroke, in which the second workpiece and the first workpiece are pressed and assembled; the avoidance position refers to the position at the beginning of the pressing assembly. The initial position where the second bearing assembly 12 rests, keeping the second workpiece separated from the first workpiece for loading or positioning; the pressing module 20 refers to the execution component in the pressing fixture that is arranged opposite to the bearing module 10 and is used to provide and transmit pressing power; the avoidance state refers to the pressing module 20 being in a position or posture away from the bearing module 10, allowing the bearing module 10 to pick up or place workpieces or adjust their position; the pressing state refers to the working state in which the pressing module 20 moves to the working position and applies pressure to the second bearing assembly 12, thereby driving it to move from the avoidance position to the pressing position.

[0034] It is understood that, in this embodiment, the ability of the pressing module 20 to move relative to the support module 10 means that the pressing module 20 can move in a straight line or curve in the direction toward or away from the support module 10 by manual, pneumatic, hydraulic or electric drive; the pressing module 20 pressing against the second support component 12 means that the pressing module 20 applies a pressure to the second support component 12 in the direction toward the first support component 11. The pressing module 20 can directly press against the second support component 12 or indirectly press against the second support component 12 through the second workpiece; the second support component 12 switching from the avoidance position to the pressing position means that under the continuous pressing action of the pressing module 20, the second support component 12 drives the second workpiece to move closer to the first workpiece along its movement path until the second workpiece reaches the designed assembly position with the first workpiece.

[0035] See Figure 5As shown, in a specific embodiment, the second bearing component 12 includes a movable platform 121 and a first elastic member 122. Along the direction toward or away from the pressing module 20, the movable platform 121 is movably disposed on the first bearing component 11 for bearing the second workpiece. The first elastic member 122 is disposed between the movable platform 121 and the first bearing component 11 for applying an elastic force to the movable platform 121 toward the pressing module 20, so that the second bearing component 12 maintains the avoidance position when the pressing module 20 is in the avoidance state. It should be noted that, in this embodiment, the movable platform 121 refers to the movable platform or pallet structure in the second bearing assembly 12 used to directly support and position the second workpiece; the first elastic element 122 refers to a mechanical element disposed between the movable platform 121 and the first bearing assembly 11, capable of generating elastic restoring force, the specific form of which includes, but is not limited to, a coil spring, a disc spring, an elastic washer, or a gas spring; the first elastic element 122 applies a spring force toward the pressing module 20 to the movable platform 121, meaning that in its natural state or pre-compressed state, the elastic restoring force of the first elastic element 122 always drives the movable platform 121 to move toward the side closer to the pressing module 20; the second bearing assembly 12 maintains an avoidance position when the pressing module 20 is in an avoidance state, meaning that when the pressing module 20 does not apply external force to the movable platform 121, under the action of the spring force of the first elastic element 122, the movable platform 121, together with the second workpiece it carries, is stably held in an initial position away from the first workpiece, thereby forming a separation space for safe loading and alignment. By setting a second bearing component 12 consisting of a movable platform 121 and a first elastic element 122, the second bearing component 12 can automatically reset and stably maintain the avoidance position after the pressing module 20 switches from the pressing state to the avoidance state, providing reliable space guarantee for the safe handling and precise alignment of the first and second workpieces.

[0036] See Figure 6 and Figure 7As shown, in a specific embodiment, the first supporting component 11 includes a fixed platform 111 for supporting a first workpiece. A first guide structure 1111 is provided on the fixed platform 111, and a second guide structure 1211 is provided on the movable platform 121. The movable platform 121 is slidably mounted on the first supporting component 11 in a direction toward or away from the pressing module 20 through a sliding engagement between the second guide structure 1211 and the first guide structure 1111. It should be noted that the fixed platform 111 in this embodiment refers to a fixed base or platform in the first supporting component 11 used to directly support and position the first workpiece. The sliding engagement between the first guide structure 1111 and the second guide structure 1211 restricts the motion freedom of the movable platform 121 to linear motion only in a single direction toward or away from the pressing module 20, ensuring that the second workpiece supported on the movable platform 121 is always aligned with the first workpiece along a preset axis during the pressing process, thus improving the accuracy and consistency of the pressing assembly.

[0037] In some embodiments, the fixed platform 111 in this embodiment includes a platform body and a workpiece support disposed on the platform body. The movable platform 121 in this embodiment has a first mounting hole adapted to the workpiece support. The movable platform 121 is fitted onto the outer periphery of the workpiece support through the first mounting hole with a clearance fit. At this time, at least a portion of the outer wall of the workpiece support constitutes a first guide structure 1111, and at least a portion of the inner wall of the first mounting hole constitutes a second guide structure 1211. It should be noted that in this embodiment, the platform body refers to the main body portion of the fixed platform 111 used to provide the main mounting foundation and structural support; the workpiece support refers to a protruding structure disposed on the platform body for directly supporting and positioning the first workpiece, having a top providing a bearing plane or positioning feature and an outer wall for guidance; the first mounting hole refers to a blind hole or through hole disposed on the movable platform 121, whose shape and size match the outer shape of the workpiece support, for sliding engagement with the workpiece support. By directly mounting the movable stage 121 onto the workpiece support of the fixed stage 111 with a clearance fit, and by forming a sliding guide pair between at least a portion of the outer side wall of the workpiece support and at least a portion of the inner side wall of the first mounting hole, high-precision linear guidance can be provided for the pressing movement of the second workpiece relative to the first workpiece, ensuring accurate alignment and reliability of the pressing assembly.

[0038] In some embodiments, the inner wall of the first mounting hole in this embodiment includes a mating section that slides with the workpiece carrier and a concave section that avoids the workpiece carrier. By configuring the inner wall of the first mounting hole to consist of the mating section and the concave section, the critical mating section can be machined with high precision, such as by wire cutting, to ensure guiding performance, while the non-critical concave section, which is only used for avoidance, can be machined with conventional precision. This reduces the production cost of the first mounting hole while ensuring the necessary sliding guiding accuracy.

[0039] See Figure 3 As shown, in a specific embodiment, the pressing module 20 includes a pressing body 21 and an elastic pressing component 22. The elastic pressing component 22 is movably disposed on the pressing body 21 along a direction toward or away from the support module 10. When the pressing module 20 is in a pressing state, the elastic pressing component 22 presses against the second support component 12, causing the second support component 12 to switch from a clearance position to a pressing position. It should be noted that in this embodiment, the pressing body 21 refers to the base that provides the main structural support and motion reference in the pressing module 20; the elastic pressing component 22 refers to a group of components disposed on the pressing body 21 that can move relative to the pressing body 21 and apply an elastic pressing force. When the pressing module 20 is in the pressing state, the elastic pressing component 22 presses against the second bearing component 12. This means that when the pressing body 21 drives the elastic pressing component 22 to move towards the bearing module 10, the elastic pressing component 22 first contacts and presses against the second bearing component 12. At this time, the elastic characteristics of the elastic pressing component 22 allow it to continue to compress and deform after contact, thereby continuously and stably applying pressure to the second bearing component 12. This pressure can overcome the elastic force of the first elastic element 122 and other resistances, and accurately control the second bearing component 12 to drive the second workpiece to move smoothly from the avoidance position to the pressing position, thus completing the pressing assembly.

[0040] See Figure 3As shown, in a specific embodiment, the elastic pressing component 22 includes a pressing block 221 and a second elastic member 222. The pressing block 221 is movably disposed on the pressing body 21 along the direction toward or away from the bearing module 10. The second elastic member 222 is disposed between the pressing block 221 and the pressing body 21 and is used to apply an elastic force toward the bearing module 10 to the pressing block 221. When the pressing module 20 is in the pressing state, the pressing block 221 abuts against the second bearing component 12, and the second elastic member 222 applies an elastic pressing force toward the bearing module 10 to the second bearing component 12 through the pressing block 221. It should be noted that, in this embodiment, the pressing block 221 refers to the rigid component in the elastic pressing assembly 22 used to directly or indirectly contact the second bearing assembly 12 to transmit pressing force; the second elastic element 222 refers to a mechanical element disposed between the pressing block 221 and the pressing body 21, capable of generating and transmitting elastic pressing force, and its specific form includes, but is not limited to, a coil spring, a disc spring, an elastic washer, or a gas spring; the second elastic element 222 applying a spring force towards the bearing module 10 to the pressing block 221 means that the second elastic element 222 in its natural state In the pre-compression state, its restoring force always drives the pressing block 221 to move towards the side closer to the bearing module 10. By setting an elastic pressing assembly 22 composed of the pressing block 221 and the second elastic element 222, the driving force of the pressing body 21 can be converted into a continuous, controllable elastic pressing force with buffering and adaptive characteristics. This effectively absorbs assembly errors and smoothly overcomes assembly resistance during the pressing process, ensuring that the second workpiece is pressed into the first workpiece with constant and precise pressure, thereby effectively improving the stability and consistency of assembly quality during the pressing assembly process.

[0041] In some embodiments, the pressing body 21 in this embodiment has a second mounting hole on the side facing the support module 10. The second mounting hole extends in a direction away from the support module 10. The pressing block 221 slides with the second mounting hole and at least partially protrudes from the side of the pressing body 21 facing the support module 10. Through the sliding engagement between the pressing block 221 and the second mounting hole, a stable and precise linear guide can be provided for the pressing block 221, ensuring that the elastic pressing force generated by the second elastic element 222 can be accurately transmitted to the second support component 12 through the pressing block 221 in a direction parallel to the extension direction of the second mounting hole.

[0042] See Figure 4As shown, in a specific embodiment, the pressing module 20 in this embodiment further includes a floating leveling component 23. The floating leveling component 23 includes a floating limiting member 231 and a third elastic member 232. Along the direction toward or away from the bearing module 10, the floating limiting member 231 is movably disposed on the pressing body 21, and the third elastic member 232 is disposed between the floating limiting member 231 and the pressing body 21. When the floating limiting member 231 abuts against the first bearing component 11, it applies an elastic force away from the bearing module 10 to the pressing body 21 to adjust the posture of the pressing body 21 relative to the bearing module 10. It should be noted that, in this embodiment, the floating limiting member 231 refers to a rigid member in the floating leveling assembly 23 that can contact the first bearing assembly 11 to transmit force, such as a floating pin, ball plunger, slider, etc.; the third elastic member 232 refers to a mechanical element disposed between the floating limiting member 231 and the pressing body 21 that can generate and transmit elastic leveling force, and its specific form includes, but is not limited to, a coil spring, a disc spring, an elastic washer, or a gas spring; when the floating limiting member 231 descends with the pressing body 21 and comes into contact with the first bearing assembly 11, the third elastic member 232 is compressed, and the elastic restoring force it generates acts in the opposite direction on the pressing body 21, thereby adjusting the posture of the pressing body 21 relative to the bearing module 10, ensuring that the axis of the force applied by the pressing module 20 remains aligned with the axis of motion of the second bearing assembly 12.

[0043] In some embodiments, a third mounting hole is provided on the side of the pressing body 21 facing the support module 10. The third mounting hole extends in a direction away from the support module 10. The floating limiting member 231 slides with the third mounting hole and at least partially protrudes from the side of the pressing body 21 facing the support module 10. Through the sliding engagement of the floating limiting member 231 with the third mounting hole, a stable and precise linear guide can be provided for the floating limiting member 231, ensuring that the floating limiting member 231 compresses the third elastic member 232 in the extension direction of the third mounting hole, so that the third elastic member 232 generates a leveling force acting in the opposite direction on the pressing body 21, thereby realizing the automatic adjustment of the posture of the pressing body 21.

[0044] See Figure 4As shown, in a specific embodiment, there are multiple floating leveling components 23, which are arranged at intervals along the circumference of the pressing body 21. By setting multiple floating leveling components 23 and arranging them at intervals along the circumference of the pressing body 21, multiple leveling points can be formed in the circumference of the pressing body 21. When the pressing body 21 descends, the floating limiting members 231 located at different circumferential positions will contact each other at different times and generate different degrees of compression based on the local height difference of the surface of the first bearing component 11 below them. Then, through their respective third elastic members 232, they will apply elastic restoring forces of different magnitudes and directions to the pressing body 21, so that the pressing body 21 can perform adaptive posture adjustment in three-dimensional space, further ensuring that the force axis applied by the pressing module 20 is aligned with the motion axis of the second bearing component 12.

[0045] See Figure 1 and Figure 2 As shown, in a specific embodiment, the bearing module 10 is provided with a third guide structure 13, and the pressing module 20 is provided with a fourth guide structure 24. The fourth guide structure 24 is used to slide and engage with the third guide structure 13 to guide the movement of the pressing module 20. The sliding engagement between the third guide structure 13 and the fourth guide structure 24 restricts the motion freedom of the pressing module 20 to only linear motion in a single direction toward or away from the bearing module 10, ensuring that the axis of force applied by the pressing module 20 remains aligned with the axis of motion of the second bearing component 12, thus improving the accuracy and consistency of the pressing assembly.

[0046] In some embodiments, the third guide structure 13 in this embodiment is a guide sleeve, and the fourth guide structure 24 is a first guide shaft adapted to the guide sleeve. The cooperation between the first guide shaft and the guide sleeve provides linear guidance for the movement of the pressing module 20, thereby ensuring that the axis of force applied by the pressing module 20 is aligned with the axis of motion of the second bearing component 12, improving the accuracy and consistency of the pressing assembly. In this embodiment, the guide sleeve can be a sliding guide sleeve, such as a sliding bearing sleeve made of copper, cast iron, or engineering plastic, or a rolling guide sleeve, such as a ball bushing.

[0047] In some embodiments, the number of third guide structures 13 and fourth guide structures 24 in this embodiment are both multiple. The multiple third guide structures 13 are spaced apart to support the module 10, and the multiple fourth guide structures 24 correspond one-to-one with the multiple third guide structures 13. Through the cooperation of multiple sets of third guide structures 13 and fourth guide structures 24, stable and high-precision linear guidance can be provided for the movement of the pressing module 20.

[0048] In one specific embodiment, the support module 10 is provided with a fifth guide structure, and the pressing module 20 is provided with a sixth guide structure. The sixth guide structure is used to slide and engage with the fifth guide structure to guide the movement of the pressing module 20. The sliding engagement between the fifth and sixth guide structures restricts the motion freedom of the pressing module 20 to only linear motion in a single direction toward or away from the support module 10, ensuring that the axis of force applied by the pressing module 20 remains aligned with the axis of motion of the second support component 12, thus improving the accuracy and consistency of the pressing assembly.

[0049] In some embodiments, the fifth guide structure in this embodiment is a second guide shaft, and the sixth guide structure is a guide hole adapted to the second guide shaft. The cooperation between the second guide shaft and the guide hole provides linear guidance for the movement of the pressing module 20, thereby ensuring that the axis of force applied by the pressing module 20 remains aligned with the axis of motion of the second bearing component 12, improving the accuracy and consistency of the pressing assembly.

[0050] In some embodiments, the number of fifth and sixth guide structures in this embodiment is multiple. Multiple fifth guide structures are spaced apart to support the module 10, and multiple sixth guide structures correspond one-to-one with the multiple fifth guide structures. Through the cooperation of multiple sets of fifth and sixth guide structures, stable and high-precision linear guidance can be provided for the movement of the pressing module 20.

[0051] See Figure 3 As shown, in a specific embodiment, the first support component 11 is provided with a vacuum adsorption structure 112. When the first workpiece is supported on the first support component 11, the vacuum adsorption structure 112 corresponds to the position of the first workpiece and can be connected to an external vacuum source to adsorb and fix the first workpiece on the first support component 11. It should be noted that the vacuum adsorption structure 112 in this embodiment refers to a functional unit that is disposed on the surface or inside the first support component 11 and can generate negative pressure under the action of an external vacuum source to achieve adsorption and fixation. Its specific form includes, but is not limited to, a vacuum suction cup, a vacuum channel or a vacuum cavity. The vacuum adsorption structure 112 is connected to the external vacuum source, which means that it is connected to a vacuum pump, a vacuum generator or a centralized vacuum system through a vacuum pipeline, interface or built-in channel. When the external vacuum source is started, a negative pressure is generated at the vacuum adsorption structure 112. This negative pressure acts on the first workpiece, thereby quickly, stably and without damage adsorbing and accurately positioning the first workpiece on the first support component 11, effectively preventing it from shifting or deflecting due to lateral force or vibration during the subsequent pressing process, and providing a reliable reference fixation for high-precision pressing assembly.

[0052] In some embodiments, the workpiece carrier in this embodiment is provided with a first positioning structure adapted to the first workpiece. The workpiece carrier positions the first workpiece through the first positioning structure. The movable platform 121 is provided with a second positioning structure adapted to the second workpiece. The movable platform 121 positions the second workpiece through the second positioning structure. When the pressing module 20 is in the pressing state, the second workpiece is limited between the movable platform 121 and the pressing module 20, ensuring that the second workpiece can follow the movable platform 121 along its moving path towards the first workpiece during the pressing process. In this embodiment, the first positioning structure refers to a physical feature provided on the workpiece carrier for cooperating with a specific contour or hole of the first workpiece to achieve its precise positioning. Its specific forms include, but are not limited to, positioning holes, positioning pins, positioning bosses, diamond pins, or contoured contours. The second positioning structure refers to a physical feature provided on the movable platform 121 for cooperating with a specific contour or hole of the second workpiece to achieve its precise positioning. Its specific forms include, but are not limited to, positioning holes, positioning pins, positioning bosses, diamond pins, or contoured contours. In some embodiments, the first workpiece in this embodiment is a rotating shaft with a shaft segment to be assembled, the first positioning structure is a positioning hole adapted to the rotating shaft, and the vacuum adsorption structure 112 is a vacuum channel communicating with the positioning hole. When the rotating shaft is inserted and positioned in the positioning hole, the bottom surface of the shoulder of the shaft segment to be assembled covers the opening of the positioning hole. At this time, when the external vacuum source is activated, negative pressure can be generated in the vacuum channel and the positioning hole. The negative pressure acts on the bottom surface of the shoulder of the shaft segment to be assembled that covers the opening of the hole, generating an adsorption force perpendicular to the bottom surface of the shoulder, thereby axially tightening the rotating shaft and firmly adsorbing and positioning it in the positioning hole.

[0053] According to another aspect of this application, a pressing device is provided, the pressing device including a pressing fixture, the pressing fixture being the pressing fixture described above.

[0054] In summary, implementing the pressing fixture and pressing equipment provided in this embodiment has at least the following beneficial technical effects: The pressing fixture provided in this embodiment can perform separate pre-positioning of the first workpiece and the second workpiece through the first bearing component 11 and the second bearing component 12, ensuring the accuracy and repeatability of the initial positions of the first workpiece and the second workpiece, thereby reducing the off-center load of the pressing assembly caused by the error of the manual alignment angle, improving the accuracy and consistency of the pressing assembly, and by pressing the second bearing component 12 with the pressing module 20 to drive it to move from the avoidance position to the pressing position, the pressing assembly between the second workpiece and the first workpiece can be achieved, thereby improving the efficiency of the pressing assembly.

[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pressing fixture, characterized in that, The pressing fixture, used for pressing and assembling a first workpiece and a second workpiece, includes: The carrier module (10) includes a first carrier component (11) and a second carrier component (12). The first carrier component (11) is used to carry the first workpiece, and the second carrier component (12) is used to carry the second workpiece. The second carrier component (12) is movably disposed on the first carrier component (11) and has a pressing position for pressing and assembling the second workpiece onto the first workpiece, and a clearance position for separating the second workpiece from the first workpiece before pressing and assembling. The pressing module (20) is disposed opposite to the bearing module (10) and can move relative to the bearing module (10). The pressing module (20) has a clearance state that avoids the bearing module (10) and a pressing state that presses against the second bearing component (12) to switch the second bearing component (12) from the clearance position to the pressing position.

2. The pressing fixture according to claim 1, characterized in that, The second support component (12) includes a movable platform (121) and a first elastic element (122). The movable platform (121) is movably disposed on the first support component (11) in a direction toward or away from the pressing module (20) to support the second workpiece. The first elastic element (122) is disposed between the movable platform (121) and the first support component (11) to apply an elastic force toward the pressing module (20) to the movable platform (121) so that the second support component (12) maintains the avoidance position when the pressing module (20) is in the avoidance state.

3. The pressing fixture according to claim 2, characterized in that, The first support component (11) includes a fixed platform (111) for supporting the first workpiece; The fixed platform (111) is provided with a first guide structure (1111), and the movable platform (121) is provided with a second guide structure (1211). The movable platform (121) is slidably installed on the first bearing component (11) in a direction toward or away from the pressing module (20) through the sliding cooperation between the second guide structure (1211) and the first guide structure (1111).

4. The pressing fixture according to claim 1, characterized in that, The pressing module (20) includes a pressing body (21) and an elastic pressing component (22). The elastic pressing component (22) is movably disposed on the pressing body (21) in a direction toward or away from the bearing module (10). When the pressing module (20) is in the pressing state, the elastic pressing component (22) presses against the second bearing component (12), causing the second bearing component (12) to switch from the avoidance position to the pressing position.

5. The pressing fixture according to claim 4, characterized in that, The elastic pressing assembly (22) includes a pressing block (221) and a second elastic member (222). Along the direction toward or away from the bearing module (10), the pressing block (221) is movably disposed on the pressing body (21), and the second elastic member (222) is disposed between the pressing block (221) and the pressing body (21) for applying an elastic force to the pressing block (221) in the direction toward the bearing module (10). When the pressing module (20) is in the pressing state, the pressing block (221) presses against the second bearing component (12), and the second elastic element (222) applies an elastic pressing force toward the bearing module (10) to the second bearing component (12) through the pressing block (221).

6. The pressing fixture according to claim 4, characterized in that, The pressing module (20) further includes a floating leveling component (23), which includes a floating limiting member (231) and a third elastic member (232). The floating limiting member (231) is movably disposed on the pressing body (21) in a direction toward or away from the bearing module (10). The third elastic member (232) is disposed between the floating limiting member (231) and the pressing body (21) and is used to apply an elastic force away from the bearing module (10) to the pressing body (21) when the floating limiting member (231) abuts against the first bearing component (11) to adjust the posture of the pressing body (21) relative to the bearing module (10).

7. The pressing fixture according to claim 6, characterized in that, The number of floating leveling components (23) is multiple, and the multiple floating leveling components (23) are arranged at intervals along the circumferential direction of the pressing body (21).

8. The pressing fixture according to claim 1, characterized in that, The bearing module (10) is provided with a third guide structure (13), and the pressing module (20) is provided with a fourth guide structure (24). The fourth guide structure (24) is used to slide with the third guide structure (13) to guide the movement of the pressing module (20).

9. The pressing fixture according to claim 1, characterized in that, The first support component (11) is provided with a vacuum adsorption structure (112). When the first workpiece is supported on the first support component (11), the vacuum adsorption structure (112) corresponds to the position of the first workpiece and can be connected to an external vacuum source to adsorb and fix the first workpiece on the first support component (11).

10. A pressing device, characterized in that, The pressing device includes a pressing fixture, which is the pressing fixture according to any one of claims 1 to 9.

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