Pressure maintaining device

Abstract

The application relates to the technical field of pressing devices, and particularly discloses a pressure maintaining device. The pressure maintaining device comprises a connecting mechanism, a floating mechanism and a pressure head, the floating mechanism comprises a shell assembly, an adjusting assembly and a floating assembly, the shell assembly comprises a bottom shell and a sleeve, the bottom shell is connected to the connecting mechanism, the sleeve is connected to the bottom shell, the sleeve is provided with a containing hole, a side wall of the sleeve is provided with a movable hole, the movable hole is communicated with the containing hole, the adjusting assembly comprises an upper movable piece, an elastic piece and a lower movable piece, the upper movable piece, the elastic piece and the lower movable piece are sequentially arranged in the containing hole in a direction away from the bottom shell, the upper movable piece is abutted against the bottom shell, the floating assembly comprises a floating piece and a position-keeping pin, one end of the floating piece is movably arranged in the containing hole and abutted against the lower movable piece, and the position-keeping pin is arranged on the floating piece and slidably arranged in the movable hole; the pressure head is connected to one side of the floating piece away from the lower movable piece, and the pressure head is used for pressing a workpiece. The pressure maintaining device can adaptively adjust a pressing angle according to a workpiece plane, and has good pressure maintaining effect.

Description

Technical Field

[0001] This application relates to the field of product pressure holding technology, specifically providing a pressure holding device. Background Technology

[0002] In the assembly of electronic products, it is often necessary to bond one product to another. After bonding, pressure is applied to the bonded products to improve the connection strength. In actual production, factors such as the carrier, product structure, and bonding flatness make it difficult for traditional pressure-holding mechanisms to be perfectly parallel to the bonding plane of the product. This results in uneven stress on the product during the pressure-holding process, affecting the pressure-holding effect. Utility Model Content

[0003] In view of the above, it is necessary to propose a pressure holding device that can adaptively adjust the pressing angle according to the workpiece plane, and has a good pressure holding effect.

[0004] This application provides a pressure-holding device, including: a connecting mechanism for connecting to an external driving device; and a floating mechanism including a housing assembly, an adjusting assembly, and a floating assembly. The housing assembly includes a bottom shell and a sleeve. The bottom shell is connected to the connecting mechanism, and the sleeve is connected to the side of the bottom shell opposite to the connecting mechanism. The sleeve has a receiving hole extending axially along the sleeve, and a movable hole is formed in the side wall of the sleeve, extending radially along the sleeve and communicating with the receiving hole. The adjusting assembly includes an upper movable member. The system comprises an upper movable member, an elastic member, and a lower movable member, which are sequentially arranged in the receiving hole along a direction away from the bottom shell. The side of the upper movable member opposite to the elastic member abuts against the bottom shell. The floating assembly includes a floating member and a positioning pin. One end of the floating member is movably inserted into the receiving hole and abuts against the lower movable member. The positioning pin is disposed on the side wall of the floating member and slidably disposed in the movable hole. A pressure head is connected to the side of the floating member opposite to the lower movable member and is used to press the workpiece.

[0005] The pressure-holding device provided in this embodiment can be connected to an external drive device via a connecting mechanism, thereby enabling the external drive device to move the pressure-holding device to maintain pressure on the workpiece. A floating mechanism is connected to the connecting mechanism. When maintaining pressure on the workpiece, the pressure head abuts against the workpiece. As the floating mechanism moves towards the workpiece, the pressure head pushes the floating component of the floating assembly towards the adjusting assembly. The elastic component of the adjusting assembly is compressed, providing a buffering effect and preventing overpressure that could damage the workpiece. The pressure head is connected to the floating component, allowing it to move. When the pressure head contacts the workpiece, it can adaptively adjust the pressing angle according to the workpiece's surface. Changes in the pressure head angle cause the floating component to swing. The upper movable component, elastic component, and lower movable component of the adjusting assembly provide rotational support for the swing of the floating component. In this way, the pressure head can adjust its angle according to the workpiece's position, resulting in a closer fit to the workpiece. This improves the uniformity of the force applied to the workpiece during the pressure-holding process, thereby enhancing the pressure-holding effect.

[0006] In some embodiments, the radius of the end of the movable hole near the bottom shell is greater than the radius of the end of the movable hole away from the bottom shell.

[0007] In some embodiments, the upper movable member includes a first hemisphere and a first connecting portion connected together. The first hemisphere abuts against the bottom shell, and the first connecting portion is disposed on the side of the first hemisphere opposite to the bottom shell. The side of the first connecting portion opposite to the first hemisphere abuts against the elastic member.

[0008] In some embodiments, the lower movable member includes a connected second hemisphere and a second connecting portion, the second hemisphere abutting against the floating member, the second connecting portion being disposed on the side of the second hemisphere opposite to the floating member, and the side of the second connecting portion opposite to the second hemisphere abutting against the elastic member.

[0009] In some embodiments, a first limiting groove is provided on the side of the first connecting portion away from the first hemisphere, and a second limiting groove is provided on the side of the second connecting portion away from the second hemisphere. The first limiting groove is used to accommodate one end of the elastic member, and the second limiting groove is used to accommodate the other end of the elastic member. The first limiting groove and the second limiting groove are used to limit the elastic member.

[0010] In some embodiments, the bottom shell has a first groove on the side opposite to the connecting mechanism, the first groove being adapted to the first hemispherical structure and used to accommodate a portion of the first hemisphere; the floating member has a second groove on the side opposite to the pressure head, the second groove being adapted to the second hemispherical structure and used to accommodate a portion of the second hemisphere.

[0011] In some embodiments, the diameter of the receiving hole is greater than the diameter of the floating member disposed at one end of the receiving hole, and the difference between the diameter of the receiving hole and the diameter of the floating member is less than the length of the positioning pin extending out of the floating member.

[0012] In some embodiments, the connecting mechanism includes a mounting plate, a lateral adjustment assembly, a longitudinal adjustment assembly, and a pressure sensor connected in sequence. The mounting plate is used to connect to the external drive device. The lateral adjustment assembly is used to adjust the position of the longitudinal adjustment assembly, the pressure sensor, the floating mechanism, and the pressure head in the lateral direction. The longitudinal adjustment assembly is used to adjust the position of the pressure sensor, the floating mechanism, and the pressure head in the longitudinal direction. The side of the pressure sensor facing away from the longitudinal adjustment assembly is connected to the bottom shell. The pressure sensor is used to detect the pressure on the pressure head.

[0013] In some embodiments, the lateral adjustment assembly includes a first fixed block, a first movable sleeve, a first adjusting member, and a first locking member. The first fixed block is fixedly connected to the mounting plate. The first movable sleeve is slidably fitted onto the first fixed block along the lateral direction. The first movable sleeve has a first adjusting hole along its longitudinal sidewall, which extends laterally. The side of the first movable sleeve facing away from the mounting plate is connected to the longitudinal adjustment assembly. The first adjusting member passes through the lateral sidewall of the first movable sleeve and is connected to the first fixed block. The first adjusting member is used to adjust the position of the first movable sleeve along the lateral direction. The first locking member passes through the first adjusting hole and is connected to the first fixed block. The first locking member is used to loosen or lock the first movable sleeve.

[0014] In some embodiments, the longitudinal adjustment assembly includes a second fixed block, a second movable sleeve, a second adjusting member, and a second locking member. The second fixed block is fixedly connected to the first movable sleeve. The second movable sleeve is slidably fitted onto the second fixed block along the longitudinal direction. The second movable sleeve has a second adjusting hole along its transverse sidewall, which extends along the longitudinal direction. The side of the second movable sleeve opposite to the first movable sleeve is connected to the pressure sensor. The second adjusting member passes through the longitudinal sidewall of the second movable sleeve and is connected to the second fixed block. The second adjusting member is used to adjust the position of the second movable sleeve along the longitudinal direction. The second locking member passes through the second adjusting hole and is connected to the second fixed block. The second locking member is used to loosen or lock the second movable sleeve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the pressure-holding device provided in an embodiment of this application.

[0016] Figure 2for Figure 1 The exploded view of the pressure-holding device is shown.

[0017] Figure 3 for Figure 1 The adjustment mechanism shown is a cross-sectional view along the III-III direction.

[0018] Key component symbols: Pressure holding device 100, connecting mechanism 10, mounting plate 11, lateral adjustment assembly 12, first fixed block 121, first movable sleeve 122, first adjusting hole 1221, first adjusting member 123, first locking member 124, longitudinal adjustment assembly 13, second fixed block 131, second movable sleeve 132, second adjusting hole 1321, second adjusting member 133, second locking member 134, pressure sensor 14, floating mechanism 20, housing assembly 21 Bottom shell 211, first groove 2111, sleeve 212, receiving hole 2121, movable hole 2122, adjusting component 22, upper movable part 221, first hemisphere 2211, first connecting part 2212, first limiting groove 2213, elastic member 222, lower movable part 223, second hemisphere 2231, second connecting part 2232, second limiting groove 2233, floating component 23, floating member 231, second groove 2311, positioning pin 232, pressure head 30. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] The embodiments of this application will be further described below with reference to the accompanying drawings. To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the drawings, with the X-axis direction being the horizontal direction, the Y-axis direction being the vertical direction, and the Z-axis direction being the axial direction, and the X-axis, Y-axis, and Z-axis directions being perpendicular to each other.

[0023] Please see Figure 1 , Figure 2 and Figure 3 This application provides a pressure-holding device 100 for maintaining pressure on a workpiece (not shown) after bonding. The pressure-holding device 100 includes a connecting mechanism 10, a floating mechanism 20, and a pressure head 30.

[0024] Specifically, the connecting mechanism 10 is used to connect with an external drive device (not shown), which can be a robotic arm, a stamping machine, etc.

[0025] The floating mechanism 20 includes a housing assembly 21, an adjusting assembly 22, and a floating assembly 23. The housing assembly 21 includes a bottom shell 211 and a sleeve 212. The bottom shell 211 is connected to the connecting mechanism 10, and the sleeve 212 is connected to the side of the bottom shell 211 opposite to the connecting mechanism 10. The sleeve 212 has a receiving hole 2121 extending axially along the sleeve 212, and a movable hole 2122 is formed on the side wall of the sleeve 212. The movable hole 2122 extends radially along the sleeve 212 and communicates with the receiving hole 2121. The adjusting assembly 22 includes an upper movable member. 221, elastic element 222 and lower movable element 223, upper movable element 221, elastic element 222 and lower movable element 223 are sequentially arranged in the receiving hole 2121 in the direction away from the bottom shell 211. The side of the upper movable element 221 away from the elastic element 222 abuts against the bottom shell 211. The floating component 23 includes a floating element 231 and a positioning pin 232. One end of the floating element 231 is movably inserted into the receiving hole 2121 and abuts against the lower movable element 223. The positioning pin 232 is arranged on the side wall of the floating element 231 and slidably arranged in the movable hole 2122.

[0026] The bottom shell 211 can be a circular plate structure, the sleeve 212 can be a hollow cylinder, and the movable holes 2122 can have one, two, three, or more, the specific number of which can be set according to actual needs and is not limited here. When there are two or more movable holes 2122, the movable holes 2122 are symmetrically arranged with respect to the axis center of the sleeve 212. The side of the upper movable member 221 that contacts the bottom shell 211 can be set as a spherical surface, the elastic member 222 can be a spring, etc., and the side of the lower movable member 223 that contacts the floating member 231 can be set as a spherical surface. The end of the floating member 231 that is located in the receiving hole 2121 can be a cylindrical structure, and the end of the floating member 231 that is located outside the receiving hole 2121 can also be a cylinder. The diameter of the end of the floating member 231 that is located in the receiving hole 2121 is smaller than the diameter of the end of the floating member 231 that is located outside the receiving hole 2121, thus limiting the distance that the floating member 231 can move into the receiving hole 2121. The positioning pin 232 can be a cylindrical structure. The number and position of the positioning pin 232 are consistent with the number and position of the movable hole 2122 and are set one-to-one.

[0027] The pressure head 30 is connected to the side of the floating member 231 opposite to the lower movable member 223, and the pressure head 30 is used to hold the workpiece. The structure of the end of the pressure head 30 opposite to the floating member 231 is adapted to the structure of the workpiece to improve the adaptability when holding pressure on the workpiece.

[0028] The pressure-holding device 100 provided in this embodiment can be connected to an external drive device via a connecting mechanism 10, thereby enabling the external drive device to move the pressure-holding device 100 to hold pressure on the workpiece. A floating mechanism 20 is connected to the connecting mechanism 10. When holding pressure on the workpiece, the pressure head 30 abuts against the workpiece. As the floating mechanism 20 moves toward the workpiece, the pressure head 30 pushes the floating member 231 of the floating assembly 23 toward the adjusting assembly 22. The elastic member 222 of the adjusting assembly 22 is compressed, providing a buffering effect and preventing overpressure that could damage the workpiece. The pressure head 30 is connected to the floating member 231, thus allowing the pressure head 30 to move. When the pressure head 30 contacts the workpiece, it can adaptively adjust the pressing angle according to the surface of the workpiece. When the angle of the pressure head 30 changes, it causes the floating member 231 to swing. The upper movable member 221, the elastic member 222, and the lower movable member 223 of the adjusting assembly 22 provide rotational support for the swing of the floating member 231. In this way, the pressure head 30 can adjust its angle according to the position of the workpiece, thereby making the pressure head 30 fit the workpiece better, which can improve the uniformity of the force applied to the workpiece during the pressure holding process, and thus improve the pressure holding effect.

[0029] In some embodiments, see Figure 1 and Figure 2The radius of the movable hole 2122 near the bottom shell 211 is larger than the radius of the movable hole 2122 away from the bottom shell 211. The structure of the movable hole 2122 is roughly an inverted teardrop shape. Thus, when pressing the workpiece, the pressure head 30 abuts against the workpiece, and the pressure head 30 is subjected to a force that pushes the floating member 231 relative to the sleeve 212 toward the bottom shell 211. At this time, if the side of the workpiece being pressed is not on the same plane as the side of the pressure head 30 used to press the workpiece, the upper movable member 221 and the lower movable member 223 rotate to adjust the angle of the pressure head 30 of the floating member 231, thereby allowing the side of the pressure head 30 used to abut against the workpiece to adaptively adjust its posture, and thus be located on the same plane as the workpiece. By setting the movable hole 2122 to a teardrop shape, when the floating part 231 moves close to the bottom shell 211, the positioning pin 232 moves close to the bottom shell 211 and then moves to the end with a larger radius of the movable hole 2122. At this time, the movable hole 2122 can provide the positioning pin 232 with room to move, which makes it easy for the floating part 231 to rotate and adjust the angle.

[0030] In this embodiment, the radius of the end of the movable hole 2122 away from the bottom shell 211 is matched with the radius of the positioning pin 232. Thus, when the workpiece is not pressed, the elastic member 222 pushes the lower movable member 223 away from the bottom shell 211, and the lower movable member 223 pushes the floating member 231 away from the bottom shell 211. The positioning pin 232 abuts against the side wall of the end of the movable hole 2122 away from the bottom shell 211, which can then position the floating member 231 and the pressure head 30, ensuring the consistency of the position of the pressure head 30 before each pressing.

[0031] In some embodiments, see Figure 2 and Figure 3 The upper movable component 221 includes a first hemisphere 2211 and a first connecting portion 2212 connected together. The first hemisphere 2211 abuts against the bottom shell 211, and the first connecting portion 2212 is located on the side of the first hemisphere 2211 facing away from the bottom shell 211, and the side of the first connecting portion 2212 facing away from the first hemisphere 2211 abuts against the elastic component 222. The side of the first hemisphere 2211 that abuts against the bottom shell 211 is spherical, so that the first hemisphere 2211 can rotate relative to the bottom shell 211 during pressing. The first connecting portion 2212 can be cylindrical, and the side of the first connecting portion 2212 that abuts against the elastic component 222 can be flat, so as to improve the stability of the connection between the elastic component 222 and the first connecting portion 2212. The first connecting portion 2212 serves as a rigid transition structure, ensuring that the force direction of the elastic component 222 is always consistent with the axis of the adjusting component 22, avoiding the twisting failure of the elastic component 222 caused by off-center loading.

[0032] In some embodiments, see Figure 2 and Figure 3The lower movable member 223 includes a connected second hemisphere 2231 and a second connecting portion 2232. The second hemisphere 2231 abuts against the floating member 231, and the second connecting portion 2232 is located on the side of the second hemisphere 2231 opposite to the floating member 231. The side of the second connecting portion 2232 opposite to the second hemisphere 2231 abuts against the elastic member 222. The side of the second hemisphere 2231 that abuts against the floating member 231 is spherical, so that the first hemisphere 2211 can rotate relative to the floating member 231 during pressing. The second hemisphere 2231 and the first hemisphere 2211 of the upper movable member 221 form a symmetrical double-spherical floating structure, which enables the pressure head 30 to self-align in both directions when subjected to axial and radial forces, compensating for workpiece surface unevenness or assembly errors. The second connecting part 2232 can be cylindrical, and the side of the second connecting part 2232 that abuts against the elastic member 222 can be flat, thus improving the stability of the connection between the elastic member 222 and the second connecting part 2232. As a rigid transition structure, the second connecting part 2232 ensures that the force direction of the elastic member 222 is always consistent with the axis of the adjusting assembly 22, avoiding twisting failure of the elastic member 222 due to off-center loading. In this embodiment, the structure of the lower movable member 223 can be the same as that of the upper movable member 221, and the lower movable member 223 and the upper movable member 221 can be symmetrically arranged, or only the structures of the first hemisphere 2211 and the second hemisphere 2231 can be the same.

[0033] In some embodiments, see Figure 2 and Figure 3 The first connecting portion 2212 has a first limiting groove 2213 on the side opposite to the first hemisphere 2211, and the second connecting portion 2232 has a second limiting groove 2233 on the side opposite to the second hemisphere 2231. The first limiting groove 2213 is used to accommodate one end of the elastic member 222, and the second limiting groove 2233 is used to accommodate the other end of the elastic member 222. The first limiting groove 2213 and the second limiting groove 2233 are used to limit the elastic member 222. By setting the first limiting groove 2213 and the second limiting groove 2233, both ends of the elastic member 222 can be limited, so that when the upper movable member 221 and the lower movable member 223 rotate during the pressing process, the elastic member 222 will rotate synchronously. The axis of the elastic member 222 is always consistent with the axis of the upper movable member 221 and the lower movable member 223, thus improving stability.

[0034] In some embodiments, see Figure 2 and Figure 3The bottom shell 211 has a first groove 2111 on the side opposite to the connecting mechanism 10. The first groove 2111 is adapted to the structure of the first hemisphere 2211 and is used to accommodate part of the first hemisphere 2211. The floating member 231 has a second groove 2311 on the side opposite to the pressure head 30. The second groove 2311 is adapted to the structure of the second hemisphere 2231 and is used to accommodate part of the second hemisphere 2231. It can be understood that the maximum groove depth of the first groove 2111 is less than the radius of the first hemisphere 2211, and the maximum groove depth of the second groove 2311 is less than the radius of the second hemisphere 2231. By setting the first groove 2111, the first hemisphere 2211 can be engaged. In this way, when the first hemisphere 2211 rotates, the instantaneous center of rotation of the first hemisphere 2211 is kept at the center position of the first hemisphere 2211, improving the stability of the rotation and reset of the first hemisphere 2211. By providing the second groove 2311, the second hemisphere 2231 can be engaged. In this way, when the second hemisphere 2231 rotates, the instantaneous center of rotation of the second hemisphere 2231 is kept at the center position of the second hemisphere 2231, thereby improving the stability of the rotation and reset of the second hemisphere 2231.

[0035] In some embodiments, see Figure 2 and Figure 3 The diameter of the receiving hole 2121 is larger than the diameter of the floating member 231 located at one end of the receiving hole 2121. The difference between the diameter of the receiving hole 2121 and the diameter of the floating member 231 is less than the length of the positioning pin 232 extending out of the floating member 231. The gap between the receiving hole 2121 and the floating member 231 ensures that the floating member 231 can always swing in all directions. The virtual outer diameter formed by the length of the positioning pin 232 is larger than the diameter of the receiving hole 2121. The positioning pin 232 can act as a radial stop, preventing the positioning pin 232 from disengaging from the movable hole 2122 when the floating member 231 swings to its maximum extent, effectively preventing the floating member 231 from disengaging from the sleeve 212 during reset.

[0036] In some embodiments, see Figure 1 , Figure 2 and Figure 3The connecting mechanism 10 includes a mounting plate 11, a lateral adjustment assembly 12, a longitudinal adjustment assembly 13, and a pressure sensor 14 connected in sequence. The mounting plate 11 is used to connect to an external drive device. The lateral adjustment assembly 12 is used to adjust the positions of the longitudinal adjustment assembly 13, the pressure sensor 14, the floating mechanism 20, and the pressure head 30 laterally. The longitudinal adjustment assembly 13 is used to adjust the positions of the pressure sensor 14, the floating mechanism 20, and the pressure head 30 longitudinally. The side of the pressure sensor 14 facing away from the longitudinal adjustment assembly 13 is connected to the bottom shell 211, and the pressure sensor 14 is used to detect the pressure on the pressure head 30. The lateral adjustment assembly 12 can adjust the positions of the floating mechanism 20 and the pressure head 30 laterally, and the longitudinal adjustment assembly 13 can adjust the positions of the floating mechanism 20 and the pressure head 30 longitudinally. In this way, the position of the pressure head 30 can be corrected and freely adjusted, improving the accuracy of the pressing position. The pressure sensor 14 can be a piezoresistive sensor, a piezoelectric sensor, a capacitive sensor, etc., as long as it can detect pressure in real time. By setting pressure sensor 14, the pressure applied to the workpiece by pressure head 30 can be detected in real time. The external drive device can adjust the holding force according to the real-time pressure value to improve the pressure holding effect and avoid damaging the workpiece.

[0037] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The lateral adjustment assembly 12 includes a first fixed block 121, a first movable sleeve 122, a first adjusting member 123, and a first locking member 124. The first fixed block 121 is fixedly connected to the mounting plate 11. The first movable sleeve 122 is slidably fitted onto the first fixed block 121 in the lateral direction. The first movable sleeve 122 has a first adjusting hole 1221 along its longitudinal sidewall. The first adjusting hole 1221 extends laterally. The side of the first movable sleeve 122 facing away from the mounting plate 11 is connected to the longitudinal adjustment assembly 13. The first adjusting member 123 passes through the first movable sleeve 122 along its lateral sidewall and is connected to the first fixed block 121. The first adjusting member 123 is used to adjust the position of the first movable sleeve 122 in the lateral direction. The first locking member 124 passes through the first adjusting hole 1221 and is connected to the first fixed block 121. The first locking member 124 is used to loosen or lock the first movable sleeve 122.

[0038] The first fixed block 121 can be a block structure, the first movable sleeve 122 can be a frame structure, and the first adjusting hole 1221 can be a strip hole. To improve the stability of the first movable sleeve 122 sliding on the first fixed block 121, a protrusion (not shown) extending laterally can be provided on the first fixed block 121, and a corresponding sliding groove (not shown) is provided on the first movable sleeve 122. The protrusion is located in the corresponding sliding groove to support the first movable sleeve 122. The first adjusting member 123 can be an adjusting bolt. The first adjusting member 123 and the first movable sleeve 122 can be connected by a snap-fit ​​method. The first adjusting member 123 is threadedly connected to the first fixed block 121, and the first locking member 124 can be a bolt. During adjustment, first loosen the first locking member 124, then rotate the first adjusting member 123. The first adjusting member 123 drives the first movable sleeve 122 to move laterally. After moving to the target position, the first locking member 124 is locked. The first movable sleeve 122 can drive the longitudinal adjustment component 13, the floating mechanism 20, and the pressure head 30 to move laterally. In this embodiment, two first adjustment components 123 can be provided, respectively located on both sides of the first movable sleeve 122 along the lateral direction, for jointly driving the first movable sleeve 122 to reciprocate laterally.

[0039] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The longitudinal adjustment assembly 13 includes a second fixed block 131, a second movable sleeve 132, a second adjusting member 133, and a second locking member 134. The second fixed block 131 is fixedly connected to the first movable sleeve 122. The second movable sleeve 132 is slidably sleeved on the second fixed block 131 along the longitudinal direction. The second movable sleeve 132 has a second adjusting hole 1321 along its transverse sidewall. The second adjusting hole 1321 extends longitudinally. The side of the second movable sleeve 132 opposite to the first movable sleeve 122 is connected to the pressure sensor 14. The second adjusting member 133 passes through the longitudinal sidewall of the second movable sleeve 132 and is connected to the second fixed block 131. The second adjusting member 133 is used to adjust the position of the second movable sleeve 132 along the longitudinal direction. The second locking member 134 passes through the second adjusting hole 1321 and is connected to the second fixed block 131. The second locking member 134 is used to loosen or lock the second movable sleeve 132.

[0040] The second fixed block 131 can be a block structure, the second movable sleeve 132 can be a frame structure, and the second adjusting hole 1321 can be a strip hole. To improve the stability of the second movable sleeve 132 sliding on the second fixed block 131, a longitudinally extending protrusion (not shown) can be provided on the second fixed block 131, and a corresponding sliding groove (not shown) can be provided on the second movable sleeve 132. The protrusion is set in the corresponding sliding groove to support the second movable sleeve 132. The second adjusting member 133 can be an adjusting bolt. The second adjusting member 133 and the second movable sleeve 132 can be connected by a snap-fit ​​method. The second adjusting member 133 is threadedly connected to the first fixed block 131, and the second locking member 134 can be a bolt. During adjustment, first loosen the second locking member 134, then rotate the second adjusting member 133. The second adjusting member 133 drives the second movable sleeve 132 to move longitudinally. After moving to the target position, the second locking member 134 can be locked. The second movable sleeve 132 can drive the floating mechanism 20 and the pressure head 30 to move longitudinally. In this embodiment, there may be two second adjustment members 133, which are respectively disposed on both sides of the second movable sleeve 132 along the longitudinal direction, and are used to jointly drive the second movable sleeve 132 to reciprocate along the longitudinal direction.

[0041] The working process of the pressure-holding device 100 provided in this embodiment is roughly as follows: Before holding the pressure, the position of the pressure head 30 in the horizontal and vertical directions can be adjusted according to the position of the workpiece by using the horizontal adjustment component 12 and the vertical adjustment component 13, thereby improving the pressing accuracy.

[0042] During pressure holding, the external drive device moves the pressure holding device 100 toward the workpiece so that the pressure head 30 abuts against the workpiece. Then, the pressure holding device 100 continues to move toward the workpiece, and the floating member 231 moves toward the bottom shell 211. This, in turn, compresses the elastic member 222 via the lower movable member 223, which acts as a buffer. After the pressure head 30 abuts against the workpiece, it can adaptively adjust its angle according to the workpiece's position. At this time, the positioning pin 232 moves closer to the bottom shell 211, eventually moving to a position with a larger radius than the movable hole 2122. During adaptive angle adjustment, the pressure head 30 drives the floating member 231 to adjust its angle. The movable hole 2122 can avoid obstructing the positioning pin 232, preventing interference with the rotation of the floating member 231. The upper movable member 221 and the lower movable member 223 work together to accommodate the angle adjustment of the floating member 231, improving the stability of the pressing action. The pressure sensor 14 can detect the pressure in real time, and the external drive device can adjust the holding force according to the real-time pressure value, improving the pressure holding effect and preventing damage to the workpiece.

[0043] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A pressure-holding device, characterized in that, include: A connecting mechanism for connecting to an external drive unit; A floating mechanism includes a housing assembly, an adjusting assembly, and a floating component. The housing assembly includes a bottom shell and a sleeve. The bottom shell is connected to a connecting mechanism, and the sleeve is connected to the side of the bottom shell opposite to the connecting mechanism. The sleeve has a receiving hole extending axially along the sleeve, and a movable hole extending radially along the sleeve and communicating with the receiving hole. The adjusting assembly includes an upper movable member, an elastic member, and a lower movable member. The upper movable member, the elastic member, and the lower movable member are sequentially arranged in the receiving hole in a direction away from the bottom shell. The side of the upper movable member opposite to the elastic member abuts against the bottom shell. The floating component includes a floating member and a positioning pin. One end of the floating member is movably inserted into the receiving hole and abuts against the lower movable member. The positioning pin is disposed on the side wall of the floating member and slidably disposed in the movable hole. A pressure head is connected to the side of the floating member opposite to the lower moving member, and the pressure head is used to hold the workpiece.

2. The pressure-holding device as described in claim 1, characterized in that, The radius of the movable hole at the end closest to the bottom shell is greater than the radius of the movable hole at the end furthest from the bottom shell.

3. The pressure-holding device as described in claim 1, characterized in that, The upper movable member includes a first hemisphere and a first connecting portion connected together. The first hemisphere abuts against the bottom shell, and the first connecting portion is disposed on the side of the first hemisphere away from the bottom shell. The side of the first connecting portion away from the first hemisphere abuts against the elastic member.

4. The pressure-holding device as described in claim 3, characterized in that, The lower movable member includes a connected second hemisphere and a second connecting portion. The second hemisphere abuts against the floating member, and the second connecting portion is disposed on the side of the second hemisphere opposite to the floating member. The side of the second connecting portion opposite to the second hemisphere abuts against the elastic member.

5. The pressure-holding device as described in claim 4, characterized in that, The first connecting part has a first limiting groove on the side opposite to the first hemisphere, and the second connecting part has a second limiting groove on the side opposite to the second hemisphere. The first limiting groove is used to accommodate one end of the elastic member, and the second limiting groove is used to accommodate the other end of the elastic member. The first limiting groove and the second limiting groove are used to limit the elastic member.

6. The pressure-holding device as described in claim 4, characterized in that, The bottom shell has a first groove on the side opposite to the connecting mechanism. The first groove is adapted to the first hemispherical structure and is used to accommodate part of the first hemisphere. The floating component has a second groove on the side opposite to the pressure head. The second groove is adapted to the second hemispherical structure and is used to accommodate part of the second hemisphere.

7. The pressure-holding device as described in claim 1, characterized in that, The diameter of the receiving hole is greater than the diameter of the floating member disposed at one end of the receiving hole, and the difference between the diameter of the receiving hole and the diameter of the floating member is less than the length of the positioning pin extending out of the floating member.

8. The pressure-holding device as described in claim 1, characterized in that, The connecting mechanism includes a mounting plate, a lateral adjustment assembly, a longitudinal adjustment assembly, and a pressure sensor connected in sequence. The mounting plate is used to connect to the external drive device. The lateral adjustment assembly is used to adjust the position of the longitudinal adjustment assembly, the pressure sensor, the floating mechanism, and the pressure head in the lateral direction. The longitudinal adjustment assembly is used to adjust the position of the pressure sensor, the floating mechanism, and the pressure head in the longitudinal direction. The side of the pressure sensor away from the longitudinal adjustment assembly is connected to the bottom shell. The pressure sensor is used to detect the pressure on the pressure head.

9. The pressure-holding device as described in claim 8, characterized in that, The lateral adjustment assembly includes a first fixed block, a first movable sleeve, a first adjusting member, and a first locking member. The first fixed block is fixedly connected to the mounting plate. The first movable sleeve is slidably fitted onto the first fixed block along the lateral direction. The first movable sleeve has a first adjusting hole along its longitudinal sidewall, which extends laterally. The side of the first movable sleeve facing away from the mounting plate is connected to the longitudinal adjustment assembly. The first adjusting member passes through the lateral sidewall of the first movable sleeve and is connected to the first fixed block. The first adjusting member is used to adjust the position of the first movable sleeve along the lateral direction. The first locking member passes through the first adjusting hole and is connected to the first fixed block. The first locking member is used to loosen or lock the first movable sleeve.

10. The pressure-holding device as described in claim 9, characterized in that, The longitudinal adjustment assembly includes a second fixed block, a second movable sleeve, a second adjusting member, and a second locking member. The second fixed block is fixedly connected to the first movable sleeve. The second movable sleeve is slidably fitted onto the second fixed block along the longitudinal direction. The second movable sleeve has a second adjusting hole along its transverse sidewall, which extends along the longitudinal direction. The side of the second movable sleeve opposite to the first movable sleeve is connected to the pressure sensor. The second adjusting member passes through the sidewall of the second movable sleeve along the longitudinal direction and is connected to the second fixed block. The second adjusting member is used to adjust the position of the second movable sleeve along the longitudinal direction. The second locking member passes through the second adjusting hole and is connected to the second fixed block. The second locking member is used to loosen or lock the second movable sleeve.

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