Pressure maintaining device and press fitting system

Abstract

The utility model relates to a pressure maintaining device and a press fitting system, the pressure maintaining device comprises a butt joint mechanism, the butt joint mechanism comprises a supporting platform, a first driving assembly and a jig, the first driving assembly and the jig are respectively arranged on two opposite sides of the supporting platform, and the jig is detachably connected to the output end of the first driving assembly; and the crimping mechanism comprises a second driving assembly, a lifting platform and a pressing head, the lifting platform is arranged on the side, close to the jig, of the supporting platform and connected to the output end of the second driving assembly, the pressing head is detachably connected to the lifting platform, and the first driving assembly can drive the jig to move to the movement path of the pressing head. Through the arrangement, the jig and the pressure head are detachably arranged, so that the press fitting device can adapt to products with different specifications by replacing jigs with different sizes and corresponding pressure heads, and the press fitting precision is improved through automatic butt joint and pressure joint arrangement.

Description

Technical Field

[0001] This utility model relates to the field of pressure holding device technology, and in particular to a pressure holding device and a pressing system. Background Technology

[0002] Crimping is a core processing method in fields such as electronic component packaging and precision mechanical assembly. Its core requirement is to achieve precise positioning of the workpiece and stable pressure maintenance. In the crimping process, a pressure holding device is usually used to crimp the product to be crimped.

[0003] Traditional crimping equipment can only crimp products of the same specification in practical applications, and cannot crimp products of different specifications, resulting in poor equipment versatility. Furthermore, products of different specifications are generally placed manually, leading to low crimping accuracy. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that the existing crimping equipment has poor versatility and that products of different specifications are generally placed manually, resulting in low crimping accuracy, and thus provides a pressure holding device.

[0005] To solve the above-mentioned technical problems, this utility model provides a pressure-holding device, comprising:

[0006] The docking mechanism includes: a support platform, a first drive component, and a fixture, wherein the first drive component and the fixture are respectively disposed on opposite sides of the support platform, and the fixture is detachably connected to the output end of the first drive component;

[0007] The pressing mechanism includes a second drive assembly, a lifting platform, and a pressing head. The lifting platform is disposed on the side of the support platform near the fixture and connected to the output end of the second drive assembly. The pressing head is detachably connected to the lifting platform. The first drive assembly can drive the fixture to move onto the movement path of the pressing head.

[0008] In one embodiment of the present invention, the crimping mechanism further includes a bracket, which is disposed on the side of the support platform near the fixture, and there is a movable space between the bracket and the support platform for the crimping head to move.

[0009] In one embodiment of the present invention, the support includes: a first pillar, a primary fixing platform, a second pillar, and a secondary fixing platform. One end of the first pillar is fixedly connected to the side of the support platform near the fixture. The primary fixing platform is connected to the end of the first pillar. One end of the second pillar is fixedly connected to the end of the primary fixing platform. The secondary fixing platform is connected to the end of the second pillar.

[0010] In one embodiment of the present invention, the second drive assembly includes: a second drive member, a second lead screw, a second nut sleeve, and a first guide rod. The second drive member is disposed on a secondary fixed platform. The second lead screw is connected to the output end of the second drive member. The second nut sleeve is adapted to be disposed on the second lead screw. The first guide rod is connected to the second nut sleeve and its end passes through the primary fixed platform and extends toward the support platform. The lifting platform is connected to the end of the first guide rod.

[0011] In one embodiment of the present invention, the lifting platform includes: a primary movable platform, a second guide member, a second guide rod, and a secondary movable platform. The primary movable platform is connected to the end of the first guide rod. The second guide member passes through the primary movable platform along its thickness direction. The second guide rod is movably connected to the second guide member. The secondary movable platform is connected to the end of the second guide rod.

[0012] In one embodiment of this utility model, the primary moving platform and the secondary moving platform are respectively connected to the two ends of the tension and compression sensor.

[0013] In one embodiment of the present invention, the pressure head is detachably mounted on the secondary movable platform via a first bolt assembly. The pressure head and the secondary movable platform are respectively provided with a first threaded hole adapted to the first bolt assembly, and an elastic layer is provided at the end of the pressure head.

[0014] In one embodiment of this utility model, the first driving component is disposed in the accommodating space. The first driving component includes: a first driving member, a first lead screw, a first nut sleeve, a push rod, and a sliding pair. The first driving member is disposed in the accommodating space. The first lead screw is connected to the output end of the first driving member. The first nut sleeve is adapted to be disposed on the first lead screw. The two ends of the push rod are respectively connected to the first nut sleeve and the fixture. The support platform has a sliding hole adapted to the push rod. The fixture is movably connected to the support platform through the sliding pair.

[0015] In one embodiment of the present invention, a base is also included, which is disposed on the side of the support platform away from the fixture, and the base encloses and forms an accommodating space.

[0016] In one embodiment of this utility model, the support platform is provided with a cover, the cover is provided on the pressing mechanism, the cover has a channel for the jig to pass through, and a photoelectric grating is provided on both sides of the channel.

[0017] In one embodiment of this utility model, the base is provided with a fan and a control system. The output end of the fan is connected to the accommodating space, and the control system is electrically connected to the fan, the photoelectric grating, the docking mechanism, and the pressing mechanism.

[0018] This utility model also discloses a press-fitting system, including the pressure-holding device described above.

[0019] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0020] The pressure-holding device of this utility model uses a first drive assembly to move a fixture in a back-and-forth direction, allowing the fixture to move below the pressure head. The fixture is used to fix the product to be pressed. A second drive assembly drives a lifting platform and the pressure head to descend, causing the pressure head to continuously press against the product, thereby forming a pressure holding cycle. After maintaining this pressure and completing the pressure holding process, the pressure head rises to reset, and the fixture returns to its initial position, completing one pressure holding cycle. Because both the fixture and the pressure head are configured to be detachable, different sizes of fixtures and corresponding pressure heads can be replaced to accommodate products of different specifications. Furthermore, the automatic docking and pressing settings improve the pressing accuracy. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the pressure-holding device of this utility model;

[0023] Figure 2 This is a schematic diagram of the docking mechanism and the pressing mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the crimping mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the docking mechanism of this utility model;

[0026] Figure 5 This is a sectional view of the lifting platform of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the fixture of this utility model.

[0028] Explanation of reference numerals in the accompanying drawings: 1. Base; 2. Pressing mechanism; 21. First support column; 22. Primary fixed platform; 23. Second support column; 24. Secondary fixed platform; 25. Second driving component; 26. Second lead screw; 27. Second nut sleeve; 28. First guide rod; 29. ​​First guide component; 210. Bearing seat; 211. Primary movable platform; 212. Second guide rod; 213. Second guide component; 214. Press head; 215. Secondary movable platform; 216. Tension / compression sensor; 3. Docking mechanism; 31. Support platform; 32. First driving component; 33. Sliding hole; 34. Push rod; 35. Position sensor; 36. First lead screw; 37. First nut sleeve; 4. Height sensor; 5. Coupling; 6. Tertiary fixed platform; 7. Third support column; 8. Machine cover; 9. Channel opening; 10. Fixture; 11. Fan; 12. Through-beam grating. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0030] Example

[0031] Reference Figures 1-6 As shown, a pressure-holding device of this utility model includes:

[0032] The docking mechanism 3 includes: a support platform 31, a first drive component, and a fixture 10. The first drive component and the fixture 10 are respectively disposed on opposite sides of the support platform 31, and the fixture 10 is detachably connected to the output end of the first drive component.

[0033] The pressing mechanism 2 includes a second drive assembly, a lifting platform, and a pressing head 214. The lifting platform is disposed on the side of the support platform 31 near the fixture 10 and connected to the output end of the second drive assembly. The pressing head 214 is detachably connected to the lifting platform. The first drive assembly can drive the fixture 10 to move onto the movement path of the pressing head 214.

[0034] The pressure-holding device of this utility model includes a horizontally positioned support platform 31 as the basic load-bearing structure. A first drive assembly is positioned above the support platform 31, driving a fixture 10 to move in the front-to-back direction, allowing the fixture 10 to move below the pressure head 214. The fixture 10 is used to fix the product to be pressed. A second drive assembly drives the lifting platform and the pressure head 214 to descend, causing the pressure head 214 to continuously press against the product, thereby forming a pressure-holding cycle. After maintaining this pressure and completing the pressure-holding process, the pressure head 214 rises to reset, and the fixture 10 returns to its initial position, completing one pressure-holding cycle. Since both the fixture 10 and the pressure head 214 are configured to be detachable, different sizes of fixture 10 and corresponding pressure heads 214 can be replaced to accommodate products of different specifications.

[0035] Reference Figures 2-3 As shown, the pressing mechanism 2 also includes a bracket, which is disposed on the side of the support platform 31 near the fixture 10. There is a movable space between the bracket and the support platform 31 for the pressing head 214 to move. The bracket is located on the side of the support platform 31 near the fixture 10, which in this embodiment is the upper surface of the support platform 31. Together with the support platform 31, it constitutes the spatial carrier for the movement of the pressing head 214. Specifically, the placement of the bracket is directly related to the relative positional relationship between the pressing head 214 and the fixture 10: since the fixture 10 is disposed on the other side of the support platform 31 through the docking mechanism 3 and can be moved horizontally to below the pressing head 214, the layout of the bracket near the fixture 10 allows the movement path of the pressing head 214 to accurately cover the movement range of the fixture 10. The height of the movable space between the bracket and the support platform 31 is determined by the vertical height of the bracket, ensuring that the pressure head 214 can descend from its initial position to the pressing position in contact with the workpiece. The horizontal range of the movable space is determined by the lateral span of the bracket, ensuring that when the fixture 10 moves directly below the pressure head 214, the vertical projection of the pressure head 214 corresponds to the position of the workpiece that needs to be pressed. The pressure head 214 moves vertically up and down within the area between the bracket and the support platform 31, avoiding interference with the top of the bracket due to the bracket being too low, and preventing failure to contact the workpiece due to the support platform 31 being too close. At the same time, the bracket adopts a rigid structure to ensure that it has sufficient load-bearing capacity to stably support the weight of the second drive component, the lifting platform, and the pressure head 214, avoiding deviation of the movement trajectory of the pressure head 214 due to structural deformation, thereby ensuring pressing accuracy.

[0036] Reference Figure 3As shown, the support includes: a first pillar 21, a primary fixing platform 22, a second pillar 23, and a secondary fixing platform 24. One end of the first pillar 21 is fixedly connected to the side of the support platform 31 near the fixture 10. The primary fixing platform 22 is connected to the end of the first pillar 21. One end of the second pillar 23 is fixedly connected to the end of the primary fixing platform 22. The secondary fixing platform 24 is connected to the end of the second pillar 23. The first pillar 21 is a vertically arranged columnar structure. The primary fixing platform 22 is a horizontally arranged plate, the lower surface of which is fixedly connected to the upper surface of the first pillar 21, including but not limited to welding, bolting, and interference fit. The second pillar 23 is vertically arranged on the upper surface of the primary fixing platform 22. The secondary fixing platform 24 is a horizontally arranged plate, the lower surface of which is fixedly connected to the upper surface of the second pillar 23.

[0037] Reference Figure 2 As shown, the second drive assembly includes a second drive member 25, a second lead screw 26, a second nut sleeve 27, and a first guide rod 28. The second drive member 25 is disposed on the secondary fixed platform 24. The second lead screw 26 is connected to the output end of the second drive member 25. The second nut sleeve 27 is adapted to be disposed on the second lead screw 26. The first guide rod 28 is connected to the second nut sleeve 27 and its end passes through the primary fixed platform 22 and extends towards the support platform 31. The lifting platform is connected to the end of the first guide rod 28. The second drive member 25 is preferably a high-precision servo motor, which is fixedly mounted on the upper surface of the secondary fixed platform 24 via a motor mount. In some embodiments, the secondary fixed platform 24 is provided with a third support column 7 and a tertiary fixed platform 6. A coupling 5 is provided between the tertiary fixed platform 6 and the secondary fixed platform 24, and the second drive member 25 is connected to the second lead screw 26 via the coupling 5. The second lead screw 26 is a vertically set lead screw, and the second nut sleeve 27 is matched with the second lead screw 26. When the second drive component 25 is started, the output shaft of the servo motor rotates, driving the second lead screw 26 to rotate synchronously. Due to the thread engagement with the lead screw, the second nut sleeve 27 moves vertically in a straight line along the axis of the lead screw. Since the first guide rod 28 is fixedly connected to the second nut sleeve 27, and the guide rod is constrained by the guide hole of the first-level fixed platform 22, the linear movement of the nut sleeve is transmitted to the lifting platform through the guide rod, driving the lifting platform to move synchronously in the vertical direction, and finally realizing the precise lifting and lowering of the pressure head 214.

[0038] Reference Figure 5As shown, the lifting platform includes: a primary movable platform 211, a second guide member 213, a second guide rod 212, and a secondary movable platform 215. The primary movable platform 211 is connected to the end of the first guide rod 28. The second guide member 213 extends through the primary movable platform 211 along its thickness direction. The second guide rod 212 is movably connected to the second guide member 213. The secondary movable platform 215 is connected to the end of the second guide rod 212. The primary movable platform 211 is a horizontally arranged rigid plate, with its top fixedly connected to the lower end of the first guide rod 28. When the second drive assembly drives the primary movable platform 211 to move vertically through the first guide rod 28, the primary movable platform 211 constrains the movement direction of the second guide rod 212 through the second guide member 213: guided by the inner hole of the second guide member 213, the second guide rod 212 can only slide in the vertical direction, thereby driving the secondary movable platform 215 to rise and fall synchronously. Furthermore, the layered design of the primary moving platform 211 and the secondary moving platform 215 provides room for expansion of pressure detection or buffering functions. For example, a tension / compression sensor 216 can be installed between the primary moving platform 211 and the secondary moving platform 215. The two ends of the sensor are connected to the two platforms respectively. When the pressure head 214 contacts the workpiece, the secondary moving platform 215 undergoes a slight displacement due to resistance (achieved by the sliding of the second guide rod 212 within the second guide member 213). The sensor can collect the pressure signal in real time and feed it back to the control system, thereby realizing closed-loop control of the pressing pressure.

[0039] Reference Figure 5 As shown, the primary movable platform 211 and the secondary movable platform 215 are respectively connected to the two ends of the tension / compression sensor 216. In some embodiments, a height sensor 4 is also provided between the lifting platform and the support to determine whether the pressure head 214 is in position. When the second drive assembly drives the primary movable platform 211 to descend via the first guide rod 28, the primary movable platform 211 pushes the secondary movable platform 215 to descend synchronously via the tension / compression sensor 216. When the pressure head 214 contacts the workpiece surface and continues to descend, the workpiece generates reverse resistance against the pressure head 214. This resistance is transmitted to the lower end of the tension / compression sensor 216 through the secondary movable platform 215, causing deformation within the sensor, which is converted into an actual pressure value. A position sensor 35 is also provided between the first nut sleeve 37 and the support platform 31 to detect whether the fixture 10 is in position.

[0040] Reference Figure 3 As shown, the pressure head 214 is detachably mounted on the secondary movable platform 215 via the first bolt assembly. The pressure head 214 and the secondary movable platform 215 are respectively provided with a first threaded hole adapted to the first bolt assembly. An elastic layer is provided at the end of the pressure head 214.

[0041] Reference Figure 4As shown, the first driving assembly is disposed in the receiving space. The first driving assembly includes: a first driving member 32, a first lead screw 36, a first nut sleeve 37, a push rod 34, and a sliding pair. The first driving member 32 is disposed within the receiving space. The first lead screw 36 is connected to the output end of the first driving member 32. The first nut sleeve 37 is adapted to be fitted onto the first lead screw 36. The two ends of the push rod 34 are respectively connected to the first nut sleeve 37 and the fixture 10. The support platform 31 has a sliding hole 33 adapted to the push rod 34. The fixture 10 is movably connected to the support platform 31 through the sliding pair. When the fixture 10 needs to be moved, the first driving member 32, i.e., the servo motor, is started, and the output shaft rotates, causing the first lead screw 36 to rotate synchronously. Due to the meshing relationship between the first nut sleeve 37 and the lead screw, the nut sleeve moves horizontally in a straight line along the axis of the lead screw. The linear motion of the nut sleeve is transmitted to the fixture 10 through the push rod 34. The sliding pair includes a slide rail and a slider. The slider at the bottom of the fixture 10 slides on the linear guide rail, ultimately realizing the horizontal movement of the fixture 10 along the surface of the support platform 31.

[0042] Reference Figures 1-2 As shown, it also includes a base 1, which is located on the side of the support platform 31 away from the fixture 10, and the base 1 encloses and forms an accommodating space. The arrangement of the base 1, through the enclosed accommodating space, provides a comprehensive environment for protection, installation, and heat dissipation for the first drive component, effectively extending the service life of the drive component. In this embodiment, the lead screw end is equipped with a bearing seat 210 for limiting and improving stability. The first drive component 32 includes a servo motor and a belt, and pulleys are provided at the corresponding ends of the first lead screw 36 and the servo motor. This enables belt drive. The control system in this embodiment is existing technology, which controls the start and stop and power of each energized component. In addition, the housing 8 can also be equipped with a fan 11.

[0043] Reference Figure 1As shown, the support platform 31 is equipped with a cover 8, which covers the pressing mechanism 2. The cover 8 has a channel 9 for the jig 10 to pass through, and two through-beam gratings 12 are respectively set on both sides of the channel 9. This serves as a non-contact safety detection device. The through-beam gratings 12 are infrared through-beams. If a person accidentally puts their hand inside, the grating signal is interrupted, and the control system immediately triggers an emergency stop. The cover 8 provides dustproof and collision-proof protection for the pressing mechanism 2 through physical enclosure, extending the service life of precision components such as the bracket, lead screw, and guide rod. The precise opening of the channel 9 ensures the normal movement of the jig 10 while limiting a single entry and exit path, improving the targeted nature of the protection. The non-contact detection of the through-beam gratings 12 achieves real-time safety monitoring of the operation process without affecting the movement of the jig 10, meeting the design requirements of inherent safety in industrial equipment. The primary fixed platform 22 is also embedded with a first guide member 29, and a first guide rod 28 is movably inserted through the first guide member 29. The first guide member 29 and the second guide member 213 may be selected as either a linear bearing or a ball bearing sleeve.

[0044] Reference Figure 1 As shown, the base 1 is equipped with a fan 11 and a control system. The output end of the fan 11 is connected to the receiving space. Two fans can also be installed, with their output and input ends connected to the receiving space respectively to form a continuous airflow. The control system is electrically connected to the fan 11, the through-beam grating 12, the docking mechanism 3, and the pressing mechanism 2. Two fans 11 are installed on the housing of the base 1 to form convection and improve heat dissipation efficiency. The tension / compression sensor 216 and the height sensor 4 are also connected to the control system, meeting the requirements of modern intelligent manufacturing for equipment intelligence and safety. Pressure accuracy can reach 2‰. After the pressure head 214 contacts the product and reaches the preset pressure (pressure control stroke), the pressing stops.

[0045] This embodiment also discloses a press-fitting system, including the pressure-holding device described above.

[0046] The pressing system described in this embodiment also includes a loading and unloading device, which uses an industrial robot for automatic loading and unloading of workpieces; a detection device, which includes a vision detection unit and a contact detection unit, for workpiece positioning detection before pressing and quality detection after pressing; and a centralized control system, which realizes full-process automated control based on an industrial PC.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pressure maintaining device, characterized by, include: The docking mechanism includes: a support platform, a first drive component, and a fixture, wherein the first drive component and the fixture are respectively disposed on opposite sides of the support platform, and the fixture is detachably connected to the output end of the first drive component; The pressing mechanism includes a second drive assembly, a lifting platform, and a pressing head. The lifting platform is disposed on the side of the support platform near the fixture and connected to the output end of the second drive assembly. The pressing head is detachably connected to the lifting platform. The first drive assembly can drive the fixture to move onto the movement path of the pressing head.

2. The pressure maintenance device of claim 1, wherein: The crimping mechanism also includes a bracket, which is disposed on the side of the support platform near the fixture, and there is a space between the bracket and the support platform for the crimping head to move.

3. The pressure maintenance device of claim 2, wherein: The support includes: a first pillar, a primary fixing platform, a second pillar, and a secondary fixing platform. One end of the first pillar is fixedly connected to the side of the support platform near the fixture. The primary fixing platform is connected to the end of the first pillar. One end of the second pillar is fixedly connected to the end of the primary fixing platform. The secondary fixing platform is connected to the end of the second pillar.

4. The pressure maintenance device of claim 3, wherein: The second drive assembly includes: a second drive member, a second lead screw, a second nut sleeve, and a first guide rod. The second drive member is disposed on the secondary fixed platform. The second lead screw is connected to the output end of the second drive member. The second nut sleeve is adapted to be disposed on the second lead screw. The first guide rod is connected to the second nut sleeve and its end passes through the primary fixed platform and extends toward the support platform. The lifting platform is connected to the end of the first guide rod.

5. A pressure maintenance device according to claim 4, wherein: The lifting platform includes: a primary movable platform, a second guide member, a second guide rod, and a secondary movable platform. The primary movable platform is connected to the end of the first guide rod. The second guide member extends through the primary movable platform along its thickness direction. The second guide rod is movably connected to the second guide member. The secondary movable platform is connected to the end of the second guide rod.

6. A pressure maintenance device according to claim 5, wherein: The primary and secondary active platforms are respectively connected to the two ends of the tension and compression sensor.

7. The pressure maintenance device of claim 1, wherein: The pressure head is detachably mounted on the secondary movable platform via a first bolt assembly. The pressure head and the secondary movable platform are respectively provided with a first threaded hole adapted to the first bolt assembly. An elastic layer is provided at the end of the pressure head.

8. The pressure maintenance device of claim 1, wherein: The first drive assembly is disposed in the receiving space. The first drive assembly includes: a first drive member, a first lead screw, a first nut sleeve, a push rod, and a sliding pair. The first drive member is disposed in the receiving space. The first lead screw is connected to the output end of the first drive member. The first nut sleeve is adapted to be disposed on the first lead screw. The two ends of the push rod are respectively connected to the first nut sleeve and the fixture. The support platform has a sliding hole adapted to the push rod. The fixture is movably connected to the support platform through the sliding pair.

9. The pressure maintenance device of claim 1, wherein: It also includes a base, which is located on the side of the support platform away from the fixture, and the base encloses and forms a receiving space.

10. The pressure maintenance device of claim 9, wherein: The support platform is equipped with a cover, which covers the pressing mechanism. The cover has a channel for the fixture to pass through, and a photoelectric grating is provided on both sides of the channel.

11. The pressure maintenance device of claim 10, wherein: The base is provided with a fan and a control system, an output end of the fan is communicated with the containing space, and the control system is electrically connected with the fan, the light barrier, the docking mechanism and the pressing mechanism.

12. A press-fit system characterized by: The pressure maintaining device as claimed in any one of claims 1 to 11.

Images