Internal support pressure maintaining device

Abstract

The utility model relates to the technical field of pressure maintaining equipment, and particularly discloses an internal supporting pressure maintaining device which is used for tightly supporting a workpiece in an inner hole of a product and comprises a clamping mechanism and an internal supporting mechanism. The clamping mechanism comprises a first clamping assembly and a second clamping assembly which are oppositely arranged. The inner supporting mechanism comprises an inner supporting driving assembly, a guiding piece, a jacking piece, a plurality of first inner supporting pieces and a plurality of second inner supporting pieces, the guiding piece is arranged between the first clamping assembly and the second clamping assembly, the jacking piece is arranged in the guiding piece in a sliding and penetrating mode, and a plurality of inclined jacking grooves are formed in the jacking piece; the included angle between the extending direction of each inclined ejector groove and the axial direction of the guide piece is an acute angle, the first inner supporting pieces are arranged in the inclined ejector grooves in a sliding mode respectively, the second inner supporting pieces and the first inner supporting pieces are arranged in a crossed mode, each second inner supporting piece is connected with the two adjacent first inner supporting pieces in a sliding mode, and the second inner supporting pieces are connected with the guide piece in a sliding mode. And the inner support driving assembly is in driving connection with the ejection piece. According to the internal support pressure maintaining device, the quality of assembling a workpiece on a product is improved, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of pressure-holding equipment technology, specifically to an internal support pressure-holding device. Background Technology

[0002] When assembling workpieces into the inner holes of a product using methods such as adhesive bonding or adsorption, it is usually necessary to provide internal support and pressure to improve assembly quality. Currently, the common practice is to use inflatable airbags for internal support and pressure maintenance. However, the pressure provided by inflatable airbags is unstable and prone to wear, resulting in poor workpiece assembly quality and a shorter lifespan. Utility Model Content

[0003] In view of the above, it is necessary to propose an internal support and pressure-holding device to improve the quality of assembling workpieces into products and extend their service life.

[0004] This application provides an internal support pressure-holding device for clamping a workpiece within the inner hole of a product. The device includes a clamping mechanism and an internal support mechanism. The clamping mechanism includes a first clamping component and a second clamping component disposed opposite to each other, which clamp the product. The internal support mechanism includes an internal support drive component, a guide member, a push-opening component, multiple first internal support components, and multiple second internal support components. The guide member is disposed between the first clamping component and the second clamping component. The push-opening component slides along the axial direction of the guide member and passes through it. The push-opening component has multiple inclined top grooves, each of which extends... The angle between the direction and the axis of the guide member is an acute angle. Multiple first inner support members are slidably disposed in multiple inclined top grooves. Multiple second inner support members and multiple first inner support members are arranged intersectingly around the axis of the guide member. Each second inner support member is slidably connected to two adjacent first inner support members. The inner support driving assembly is drivenly connected to the top opening member. The inner support driving assembly is used to drive the top opening member to move, so that the top opening member drives multiple first inner support members to move away from each other, thereby causing multiple first inner support members to drive multiple second inner support members to move away from each other and tighten the workpiece in the inner hole.

[0005] In some embodiments, the sides of the plurality of first inner supports that are far apart from each other each have a first arc surface, and the sides of the plurality of second inner supports that are far apart from each other each have a second arc surface, and the sum of the arc of the plurality of first arc surfaces and the arc of the plurality of second arc surfaces is 2π.

[0006] In some embodiments, the first inner support member has a pushing portion on the side facing the top opening member, and the pushing portion is slidably engaged with the corresponding inclined top groove.

[0007] In some embodiments, the guide member has a guide hole extending along the axial direction of the guide member, the guide hole having a plurality of guide portions; the push-opening member is slidably disposed through the guide hole, the push-opening member has a plurality of inclined tops, the plurality of inclined tops are slidably disposed on the plurality of guide portions, and the plurality of inclined top grooves are respectively formed on the plurality of inclined tops.

[0008] In some embodiments, the guide member has a plurality of spaced-apart snap-fit ​​portions on the side facing the plurality of second inner support members, and each of the second inner support members has a sliding slot on the side facing the guide member, and the plurality of snap-fit ​​portions are slidably snapped into the plurality of sliding slots respectively.

[0009] In some embodiments, the guide member is cylindrical, and the first inner support member has inclined sliding portions on both sides of the two adjacent second inner support members; a guide groove is provided on the side of the plurality of second inner support members that are close to each other, the extension direction of the guide groove is tangent to the circumferential direction of the guide member, and each sliding portion is slidably engaged in the adjacent guide groove.

[0010] In some embodiments, the guide member has a guide groove communicating with the guide hole on the side facing the inner support drive assembly; the inner support mechanism further includes a transmission assembly, an elastic assembly, and a connecting member, the transmission assembly is slidably disposed in the guide groove, both ends of the elastic assembly are respectively connected to the transmission assembly and the top opening member, one end of the connecting member is slidably inserted into the transmission assembly, and the other end of the connecting member is connected to the top opening member, the inner support drive assembly is drivenly connected to the transmission assembly, thereby being drivenly connected to the top opening member through the transmission assembly and the elastic assembly.

[0011] In some embodiments, the guide member has a limiting groove communicating with the guide groove on its circumference, and the transmission assembly has a limiting part on its circumference, the limiting part being movably disposed in the limiting groove along the axial direction of the guide member.

[0012] In some embodiments, both the first clamping assembly and the second clamping assembly include a support member, a clamping drive member, a mounting member, a guide member, a clamping member, and a buffer elastic member; the support member is disposed on one side of the guide member; the clamping drive member is disposed on the support member; the mounting member is drivenly connected to the clamping drive member; the guide member slides through the mounting member and extends toward the guide member; the clamping member is connected to one end of the guide member near the guide member; the buffer elastic member is sleeved on the guide member, and both ends of the buffer elastic member are respectively connected to the mounting member and the clamping member.

[0013] In some embodiments, the internal support pressure-holding device further includes a motion mechanism, which is drivenly connected to the guide member and is used to drive the guide member to move.

[0014] The internal support pressure-holding device of this application embodiment, by setting an internal support drive assembly, a guide member, a push-opening member, multiple first internal support members, and multiple second internal support members, enables the internal support drive assembly to mechanically drive the multiple first internal support members and multiple second internal support members to tighten the workpiece within the inner hole. The pressure provided to the workpiece by the multiple first internal support members and multiple second internal support members is more stable, and the wear between the internal support drive assembly, guide member, push-opening member, multiple first internal support members, and multiple second internal support members is reduced, thereby improving the quality of workpiece assembly into the product and extending the service life of the internal support pressure-holding device. In addition, by adjusting the stroke of the push-opening member driven by the internal support drive assembly and by rationally designing the structure of the multiple first internal support members and multiple second internal support members, the multiple first internal support members and multiple second internal support members can tighten workpieces of different sizes and shapes within inner holes of corresponding sizes and shapes, thereby enhancing the versatility of the internal support pressure-holding device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the internal support and pressure-holding device provided in the embodiments of this application, which is used in conjunction with applicable products and workpieces.

[0016] Figure 2 yes Figure 1 The diagram shows the exploded structure of the product and workpiece.

[0017] Figure 3 yes Figure 1 A three-dimensional structural diagram of the internal support mechanism in the internal support pressure-holding device shown.

[0018] Figure 4 yes Figure 3 The diagram shows the exploded structure of the inner support mechanism after removing the inner support drive component.

[0019] Figure 5 yes Figure 4 An exploded structural diagram of the guide and transmission components from another angle.

[0020] Key component symbols: Internal support pressure holding device 100, base 10, clamping mechanism 20, first clamping assembly 21, support member 211, clamping drive member 212, mounting member 213, guide member 214, clamping member 215, clamping groove 2151, buffer elastic member 216, second clamping assembly 22, motion mechanism 30, first bracket 31, second bracket 32, linear module 33, slide rail 34, sliding frame 35, internal support mechanism 40, guide member 41, guide hole 411, guide part 4111, snap-fit ​​part 412, guide groove 413, limiting slot 414, moving part 4141, limiting part 4142, locking groove 415, top opening member 42, inclined Top 421, inclined top groove 4211, first inner support member 43, pushing part 431, sliding part 432, first arc surface 433, second inner support member 44, guide groove 441, sliding groove 442, second arc surface 443, inner support drive assembly 45, mounting base 451, inner support drive member 452, drive shaft 4521, guide column 453, moving base 454, transmission assembly 46, transmission member 461, through hole 4611, storage hole 4612, limiting part 4613, sealing plate 462, elastic assembly 47, compression elastic member 471, abutment member 472, connecting member 48, locking member 49, product 500, inner hole 510, workpiece 600, axis L. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0025] Please see Figure 1 and Figure 2 This application provides an internal support and pressure-holding device 100 for supporting a workpiece 600 within the inner hole 510 of a product 500. The product 500 can be cylindrical, cubic, etc., and the inner hole 510 can be a through hole, a blind hole, etc. The workpiece 600 can be a metal mesh, non-woven fabric, etc. For ease of understanding, this application uses an example where the product 500 is cylindrical, the inner hole 510 is a blind hole, the diameter of the opening of the inner hole 510 is smaller than the diameter of the other parts of the inner hole 510, and the workpiece 600 is a metal mesh. Obviously, this is not a limitation of this application.

[0026] Please refer to the following: Figure 3 and Figure 4 In this embodiment, the internal support and pressure holding device 100 includes a base 10, a clamping mechanism 20, a motion mechanism 30, and an internal support mechanism 40.

[0027] The clamping mechanism 20 includes a first clamping component 21 and a second clamping component 22 disposed opposite to each other. Both the first clamping component 21 and the second clamping component 22 are disposed on the base 10. The first clamping component 21 and the second clamping component 22 are used to clamp the product 500.

[0028] The internal support mechanism 40 includes a guide member 41, a push-opening member 42, multiple first internal support members 43, multiple second internal support members 44, and an internal support drive assembly 45. The guide member 41 is disposed between the first clamping assembly 21 and the second clamping assembly 22. The push-opening member 42 slides through the guide member 41 along its axial direction. The push-opening member 42 has multiple inclined top grooves 4211, and the angle between the extension direction of each inclined top groove 4211 and the axial direction of the guide member 41 is an acute angle. The multiple first internal support members 43 are respectively slidably disposed in the multiple inclined top grooves. 4211, multiple second inner support members 44 and multiple first inner support members 43 are arranged intersectingly around the axis L of the guide member 41. Each second inner support member 44 is slidably connected to two adjacent first inner support members 43. The inner support drive assembly 45 is drivenly connected to the opening member 42. The inner support drive assembly 45 is used to drive the opening member 42 to move so that the opening member 42 drives the multiple first inner support members 43 away from each other, thereby causing the multiple first inner support members 43 to drive the multiple second inner support members 44 away from each other and to support the workpiece 600 tightly in the inner hole 510.

[0029] The motion mechanism 30 is located on the base 10 and is driven to connect with the guide member 41. The motion mechanism 30 is used to drive the guide member 41 to move.

[0030] Specifically, before the inner support and pressure holding device 100 tightens the workpiece 600 into the inner hole 510 of the product 500, the workpiece 600 is first adhered to the wall of the inner hole 510 by adhesive. When the inner support and pressure holding device 100 tightens the workpiece 600 into the inner hole 510 of the product 500, the product 500 with the workpiece 600 attached is first moved onto the inner support and pressure holding device 100, and multiple first inner support members 43 and multiple second inner support members 44 are inserted into the inner hole 510 and face the workpiece 600. Then, the first clamping assembly 21 and the second clamping assembly 22 clamp the product 500 from both sides. Then, the inner support driving assembly 45 drives the opening member 42 to move. The opening member 42 drives the multiple first inner support members 43 to move away from each other. The multiple first inner support members 43 drive the multiple second inner support members 44 to move away from each other. The multiple first inner support members 43 and the multiple second inner support members 44 tighten the workpiece 600 into the inner hole 510. After a preset time has elapsed between the multiple first inner support members 43 and the multiple second inner support members 44, the adhesive has cured and the workpiece 600 is completely adhered to the product 500. The first clamping assembly 21 and the second clamping assembly 22 release the product 500, and the motion mechanism 30 drives the inner support mechanism 40 to move, thereby moving the assembled product 500 and workpiece 600 to the next workstation.

[0031] Thus, by setting up the inner support drive assembly 45, guide member 41, ejector member 42, multiple first inner support members 43, and multiple second inner support members 44, the inner support drive assembly 45 drives the multiple first inner support members 43 and multiple second inner support members 44 through mechanical transmission to tighten the workpiece 600 against the inner hole 510. The pressure provided by the multiple first inner support members 43 and multiple second inner support members 44 to the workpiece 600 is more stable, and the wear between the inner support drive assembly 45, guide member 41, ejector member 42, multiple first inner support members 43, and multiple second inner support members 44 is less, thereby improving the quality of assembling the workpiece 600 into the product 500 and extending the service life of the inner support pressure holding device 100. Furthermore, by adjusting the stroke of the inner support drive assembly 45 to drive the lifting member 42, and by rationally designing the structure of multiple first inner support members 43 and multiple second inner support members 44, the multiple first inner support members 43 and multiple second inner support members 44 can tighten workpieces 600 of different sizes and shapes into the corresponding size and shape of the inner hole 510, thereby enhancing the versatility of the inner support pressure holding device 100. By setting the motion mechanism 30 to drive the guide member 41 to move, it is convenient to move the assembled product 500 and workpiece 600 to the next workstation.

[0032] In some other embodiments, the motion mechanism 30 may not be provided. Instead, a fixed frame (not shown) is provided to fix the guide member 41. After the product 500 and the workpiece 600 are assembled, the assembled product 500 and workpiece 600 are removed from the inner support and pressure holding device 100 by manual labor or a robotic arm (not shown). This application embodiment does not specifically limit this.

[0033] Please refer to it again. Figure 1 and Figure 2 In this embodiment, both the first clamping assembly 21 and the second clamping assembly 22 include a support member 211, a clamping drive member 212, a mounting member 213, a guide member 214, a clamping member 215, and a buffer elastic member 216. The support member 211 is disposed on one side of the guide member 41; the clamping drive member 212 is disposed on the support member 211, and the clamping drive member 212 can be a telescopic cylinder; the mounting member 213 is drivenly connected to the clamping drive member 212; the guide member 214 slides through the mounting member 213 and extends toward the guide member 41; the clamping member 215 is connected to the end of the guide member 214 near the guide member 41; the buffer elastic member 216 can be a spring, the buffer elastic member 216 is sleeved on the guide member 214, and the two ends of the buffer elastic member 216 are respectively connected to the mounting member 213 and the clamping member 215.

[0034] When the first clamping assembly 21 and the second clamping assembly 22 clamp the product 500, the clamping drive 212 drives the mounting member 213, the guide 214, the clamping member 215, and the buffer elastic member 216 to approach the product 500. The clamping member 215 of the first clamping assembly 21 and the second clamping assembly 22 clamps the product 500, thereby improving the accuracy of the first clamping assembly 21 and the second clamping assembly 22 clamping the product 500. The buffer elastic member 216 provides cushioning when the clamping member 215 clamps the product 500, thereby reducing the probability of the first clamping assembly 21 and the second clamping assembly 22 damaging the product 500.

[0035] In this embodiment, clamping grooves 2151 are provided on the sides of the clamping members 215 of the first clamping assembly 21 and the clamping members 215 of the second clamping assembly 22 that are close to each other. The clamping grooves 2151 are arc-shaped. When the clamping members 215 of the first clamping assembly 21 and the clamping members 215 of the second clamping assembly 22 clamp the product 500, the groove wall of the clamping groove 2151 abuts against the side wall of the product 500, thereby improving the stability of the first clamping assembly 21 and the second clamping assembly 22 in clamping the product 500.

[0036] In this embodiment, the motion mechanism 30 includes a first support 31, a second support 32, a linear module 33, a slide rail 34, and a sliding frame 35. The first support 31 and the second support 32 are spaced apart on the base 10, located between the support members 211 of the first clamping assembly 21 and the second clamping assembly 22. The linear module 33 is mounted on one of the first support 31 and the second support 32. The slide rail 34 is mounted on the other of the first support 31 and the second support 32. The sliding frame 35 is slidably mounted on the slide rail 34 and drivenly connected to the linear module 33. The inner support drive assembly 45 and the guide member 41 are both mounted on the sliding frame 35. When the motion mechanism 30 drives the inner support mechanism 40 to move, the linear module 33 drives the inner support mechanism 40 to move via the sliding frame 35, and the slide rail 34 guides the sliding frame 35, thereby improving the accuracy of the motion mechanism 30 in driving the inner support mechanism 40 to move.

[0037] Please refer to the following: Figure 3 , Figure 4 and Figure 5, in this embodiment, the guide member 41 is provided with a guide hole 411 extending along the axial direction of the guide member 41, and the guide hole 411 has a plurality of guide portions 4111. The ejecting member 42 is slidably inserted through the guide hole 411. The ejecting member 42 has a plurality of inclined tops 421, and the plurality of inclined tops 421 are respectively slidably disposed in the plurality of guide portions 4111. A plurality of inclined top grooves 4211 are respectively provided in the plurality of inclined tops 421. When the inner support driving component 45 drives the ejecting member 42 to move, the plurality of guide portions 4111 cooperate with the plurality of inclined tops 421 to guide the moving direction of the guide member 41 and restrict the rotation of the ejecting member 42 relative to the guide member 41, thereby improving the accuracy of the inner support driving component 45 driving the ejecting member 42 to move.

[0038] In this embodiment, the number of the guide portions 4111 and the inclined tops 421 is the same as the number of the inclined top grooves 4211, the first inner support members 43 and the second inner support members 44. Exemplarily, the number of the guide portions 4111, the inclined tops 421, the inclined top grooves 4211, the first inner support members 43 and the second inner support members 44 is three. In some other embodiments, the number of the guide portions 4111, the inclined tops 421, the inclined top grooves 4211, the first inner support members 43 and the second inner support members 44 may also be four, six, etc. The embodiments of the present application do not make specific limitations thereto.

[0039] In this embodiment, one side of the first inner support member 43 facing the ejecting member 42 has a pushing portion 431, and the pushing portion 431 is slidably clamped in the corresponding inclined top groove 4211.

[0040] Specifically, the cross-sectional shapes of the pushing portion 431 and the inclined top groove 4211 are both "convex" shapes, and the pushing portion 431 and the inclined top groove 4211 form a mortise and tenon structure. When the inner support driving component 45 drives the ejecting member 42 to expand the plurality of first inner support members 43, the plurality of first inner support members 43 will not be separated from the inclined top grooves 4211, thereby improving the accuracy of the ejecting member 42 expanding the plurality of first inner support members 43. In addition, when the inner support driving component 45 drives the ejecting member 42 to return to its original position, the extrusion force exerted by the groove wall of the inclined top groove 4211 can cause the plurality of first inner support members 43 to收拢相互收拢, thereby facilitating the reuse of the inner support mechanism 40.

[0041] In this embodiment, the guide member 41 is cylindrical. Both sides of the first inner support member 43 close to two adjacent second inner support members 44 have sliding portions 43 (此处原文有误,推测为432) that are inclined. A guide card slot 441 is provided on one side of the plurality of second inner support members facing each other, and the extending direction of the guide card slot 441 is tangent to the circumferential direction of the guide member 41. Each sliding portion 432 is slidably clamped in the adjacent guide card slot 441.

[0042] Specifically, the cross-sectional shapes of the sliding part 432 and the guiding slot 441 are both "convex" shaped, and the sliding part 432 and the guiding slot 441 form a mortise and tenon structure. When the plurality of first inner support members 43 move away from each other, the plurality of first inner support members 43 drive the plurality of second inner support members 44 to move away from each other, and each first inner support member 43 and its adjacent second inner support member 44 will not separate, thereby improving the accuracy of the plurality of first inner support members 43 driving the plurality of second inner support members 44 to move away from each other. In addition, when the plurality of first inner support members 43 are收拢towards each other, the extrusion force applied by the sliding part 432 to the corresponding guiding slot 441 causes the plurality of first inner support members 43 to drive the plurality of second inner support members 44 to收拢towards each other, thus facilitating the reuse of the inner support mechanism 40.

[0043] In this embodiment, the side of the guiding member 41 facing the plurality of second inner support members 44 has a plurality of spaced-apart engaging portions 412, and a sliding slot 442 is formed on the side of each second inner support member 44 facing the guiding member 41. The plurality of engaging portions 412 are respectively slidably engaged in the plurality of sliding slots 442.

[0044] Specifically, the plurality of engaging portions 412 all extend along the radial direction of the guiding member 41. The cross-sectional shapes of the engaging portion 412 and the sliding slot 442 are both "convex" shaped, and the engaging portion 412 and the sliding slot 442 form a mortise and tenon structure. When the plurality of first inner support members 43 drive the plurality of second inner support members 44 to move away from each other or towards each other, the engaging portion 412 cooperates with the corresponding sliding slot 442 to guide the movement direction of the corresponding second inner support member 44, and the plurality of engaging portions 412 cooperate with the plurality of sliding slots 442 to keep the plurality of first inner support members 43 and the plurality of second inner support members 44 in the same plane, avoiding the plurality of first inner support members 43 from moving axially along the guiding member 41 under the extrusion force of the ejecting member 42, thereby improving the accuracy of the plurality of first inner support members 43 driving the plurality of second inner support members 44 to tighten the workpiece 600 and improving the accuracy of the plurality of first inner support members 43 driving the plurality of second inner support members 44 to return to the original position.

[0045] In this embodiment, the side of each of the plurality of first inner support members 43 facing away from each other has a first arc surface 433, and the side of each of the plurality of second inner support members 44 facing away from each other has a second arc surface 443. The sum of the curvatures of the plurality of first arc surfaces 433 and the plurality of second arc surfaces 443 is 2π. Thus, when the plurality of first inner support members 43 drive the plurality of second inner support members 44 to move away from each other, the plurality of first inner support members 43 and the plurality of second inner support members 44 internally support and maintain pressure on the workpiece 600 at 360 degrees, thereby improving the quality of the inner support and pressure maintaining device 100 for tightening the workpiece 600 in the inner hole 510 of the product 500.

[0046] In this embodiment, the guide member 41 has a guide groove 413 communicating with the guide hole 411 on the side facing the inner support drive assembly 45. The inner support mechanism 40 also includes a transmission assembly 46, an elastic assembly 47, and a connecting member 48. The transmission assembly 46 is slidably disposed in the guide groove 413. The two ends of the elastic assembly 47 are respectively connected to the transmission assembly 46 and the opening member 42. One end of the connecting member 48 is slidably inserted into the transmission assembly 46, and the other end of the connecting member 48 is connected to the opening member 42. The inner support drive assembly 45 is drivenly connected to the transmission assembly 46, thereby being drivenly connected to the opening member 42 through the transmission assembly 46 and the elastic assembly 47.

[0047] Specifically, when the inner support drive assembly 45 drives the transmission assembly 46 to move toward the top opening member 42, the transmission assembly 46 drives the top opening member 42 to move via the elastic assembly 47. The elastic assembly 47 is designed to continuously provide compressive force and cushioning to the top opening member 42 when it drives multiple first inner support members 43 and multiple second inner support members 44 to tighten the workpiece 600. This improves the quality of the multiple first inner support members 43 and multiple second inner support members 44 in tightening the workpiece 600 within the inner hole 510 of the product 500, and reduces the probability of the multiple first inner support members 43 and multiple second inner support members 44 damaging the workpiece 600 and the product 500. When the inner support drive assembly 45 drives the transmission assembly 46 away from the top opening member 42, the transmission assembly 46 drives the top opening member 42 back to its original position via the connecting member 48, thus facilitating the reuse of the inner support mechanism 40.

[0048] In this embodiment, the transmission assembly 46 includes a transmission member 461 and a sealing plate 462. The transmission member 461 has a through hole 4611 and a receiving hole 4612. The receiving hole 4612 is located on one side of the through hole 4611. The connector 48 can be a bolt. One end of the connector 48 passes through the through hole 4611 and is connected to the top opening member 42. The other end of the connector 48 stops at the end of the through hole 4611 near the inner support drive assembly 45. The elastic component 47 is disposed in the receiving hole 4612 and extends out of the receiving hole 4612 near the top opening member 42. The sealing plate 462 is connected to the end of the transmission member 461 near the inner support drive assembly 45. The sealing plate 462 closes the through hole 4611 and the end of the receiving hole 4612 near the inner support drive assembly 45. The two ends of the elastic component 47 abut against the sealing plate 462 and the top opening member 42, respectively. Thus, by setting the transmission assembly 46 to include a transmission member 461 and a sealing plate 462, and by opening a through hole 4611 and a receiving hole 4612 on the transmission member 461, it is convenient to install the connector 48 and the elastic component 47. Furthermore, the setting of the receiving hole 4612 can restrict the extension and retraction direction of the elastic component 47, thereby improving the accuracy of the elastic component 47 driving the top opening member 42 to move.

[0049] In this embodiment, the diameter of the end of the receiving hole 4612 near the top opening member 42 is smaller than the diameter of the rest of the receiving hole 4612. The elastic component 47 includes a compression elastic member 471 and an abutment member 472. The compression elastic member 471 can be a spring. The compression elastic member 471 is disposed in the receiving hole 4612, and one end of the compression elastic member 471 abuts against the sealing plate 462. The abutment member 472 is connected to the end of the compression elastic member 471 near the top opening member 42, and the abutment member 472 extends out of the receiving hole 4612 near the top opening member 42 and abuts against the top opening member 42. The length of the abutment member 472 extending out of the receiving hole 4612 can limit the compression amount of the compression elastic member 471, thereby accurately limiting the force of the compression elastic member 471 pressing against the top opening member 42, and thus improving the quality of the multiple first inner support members 43 and multiple second inner support members 44 in supporting the workpiece 600 within the inner hole 510 of the product 500.

[0050] In this embodiment, the guide member 41 has a limiting groove 414 communicating with the guide groove 413 on its periphery, and the transmission assembly 46 has a limiting part 4613 on its periphery. The limiting part 4613 is movably disposed in the limiting groove 414 along the axial direction of the guide member 41. Specifically, the limiting part 4613 protrudes from the periphery of the transmission member 461.

[0051] By setting the limiting slot 414 and the limiting part 4613, the distance that the inner support drive assembly 45 drives the transmission assembly 46 to move axially along the guide member 41 can be limited. This avoids the transmission assembly 46 from excessively squeezing the elastic assembly 47, which would cause the opening member 42 to squeeze the multiple first inner support members 43 with excessive force. This improves the quality of the multiple first inner support members 43 and the multiple second inner support members 44 in holding the workpiece 600 tightly within the inner hole 510 of the product 500.

[0052] In this embodiment, the limiting slot 414 includes a connected insertion portion 4141 and a limiting portion 4142. The insertion portion 4141 extends axially along the guide member 41 and communicates with one end of the guide member 41 near the inner support drive assembly 45. The limiting portion 4142 extends circumferentially along the guide member 41. When the transmission assembly 46 is connected to the guide member 41, the limiting portion 4613 enters the limiting portion 4142 from the insertion portion 4141. The limiting portion 4613 and the limiting portion 4142 cooperate to limit the distance by which the inner support drive assembly 45 drives the transmission assembly 46 to move axially along the guide member 41. This improves the ease of assembly and disassembly of the transmission assembly 46 and the guide member 41.

[0053] In this embodiment, the inner support mechanism 40 also includes a locking member 49, and the guide member 41 is provided with a locking groove 415 on its periphery. The locking member 49 is connected to the sliding frame 35 and engages with the locking groove 415, thereby improving the ease of disassembly and assembly of the guide member 41 and the sliding frame 35.

[0054] In this embodiment, the inner support drive assembly 45 includes a mounting base 451, an inner support drive member 452, a guide column 453, and a movable seat 454. The mounting base 451 is mounted on the sliding frame 35. The inner support drive member 452 can be a servo electric cylinder. The inner support drive member 452 is located on the mounting base 451. The drive shaft 4521 of the inner support drive member 452 passes through the mounting base 451 and is connected to the movable seat 454. The guide column 453 slides through the mounting base 451 along the moving direction of the drive shaft 4521 of the inner support drive member 452 and is connected to the movable seat 454. The sealing plate 462 is connected to the movable seat 454. When the inner support drive assembly 45 drives the opening member 42 to move, the inner support drive member 452 drives the movable seat 454 to move. The guide column 453 restricts the moving direction of the movable seat 454. The movable seat 454 drives the opening member 42 to move through the transmission assembly 46 and the elastic assembly 47. In this way, the accuracy of the inner support drive assembly 45 driving the opening member 42 to move is improved.

[0055] In summary, the internal support pressure holding device 100 of this application embodiment, by setting an internal support drive assembly 45, a guide member 41, a push-opening member 42, a plurality of first internal support members 43 and a plurality of second internal support members 44, enables the internal support drive assembly 45 to mechanically drive the plurality of first internal support members 43 and a plurality of second internal support members 44 to tighten the workpiece 600 in the inner hole 510. The pressure provided to the workpiece 600 by the plurality of first internal support members 43 and a plurality of second internal support members 44 is more stable, and the wear between the internal support drive assembly 45, the guide member 41, the push-opening member 42, the plurality of first internal support members 43 and the plurality of second internal support members 44 is less, thereby improving the quality of assembling the workpiece 600 into the product 500 and extending the service life of the internal support pressure holding device 100. In addition, by adjusting the stroke of the inner support drive assembly 45 to drive the top opening member 42 to move, and by rationally designing the structure of multiple first inner support members 43 and multiple second inner support members 44, the multiple first inner support members 43 and multiple second inner support members 44 can tighten workpieces 600 of different sizes and shapes into the corresponding size and shape of the inner hole 510, thereby enhancing the versatility of the inner support pressure holding device 100.

[0056] 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.

[0057] 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. An internal support and pressure-holding device for tightly supporting a workpiece within the inner hole of a product, characterized in that, The utility model relates to a product inner hole supporting device, including: Clamping mechanism, including oppositely arranged first clamping component and second clamping component, first clamping component and second clamping component are used to clamp product; Inner support mechanism, including inner support drive assembly, guide, top open piece, a plurality of first inner support and a plurality of second inner support, guide is located between first clamping component and second clamping component, top open piece is slid along the axial direction of guide and is arranged in guide, top open piece is provided with a plurality of inclined top grooves, the included angle between the extension direction of each inclined top groove and the axial direction of guide is acute angle, a plurality of first inner support are slid respectively in a plurality of inclined top grooves, a plurality of second inner support are arranged around the axis of guide with a plurality of first inner support, each second inner support is slidably connected with two adjacent first inner support, inner support drive assembly is drivingly connected with top open piece, inner support drive assembly is used to drive top open piece to move, so that top open piece drives a plurality of first inner support to be far away from each other, so that a plurality of first inner support drives a plurality of second inner support to be far away from each other and supports workpiece tightly in inner hole.

2. The internal prop pressure maintaining device according to claim 1, wherein The side of a plurality of first inner support far away from each other has first arc surface, the side of a plurality of second inner support far away from each other has second arc surface, the sum of the curvature of a plurality of first arc surface and the curvature of a plurality of second arc surface is 2pi.

3. The internal prop pressure maintaining device according to claim 1, wherein The side of first inner support towards top open piece has push part, and the push part is slidably arranged in the corresponding inclined top groove.

4. The internal prop pressure maintaining device according to any one of claims 1 to 3, characterized in that, The guide hole is provided with a plurality of guide portions along the axial direction of the guide; the top opening piece is slidably arranged in the guide hole, and the top opening piece has a plurality of inclined top portions, each of which is slidably arranged in a plurality of guide portions, and a plurality of inclined top grooves are arranged in a plurality of inclined top portions.

5. The internal prop pressure maintaining device according to claim 4, wherein The side of the guide towards a plurality of second inner supports has a plurality of spaced apart clamping portions, and the side of each second inner support towards the guide is provided with a sliding clamping groove, and a plurality of clamping portions are slidably arranged in a plurality of sliding clamping grooves.

6. The internal prop pressure maintaining device according to claim 4, wherein The guide is cylindrical, and the first inner support has an inclined sliding portion on both sides close to the two adjacent second inner supports; a plurality of second inner supports have a guide clamping groove on the side close to each other, and the extension direction of the guide clamping groove is tangent to the circumferential direction of the guide, and each sliding portion is slidably arranged in the adjacent guide clamping groove.

7. The internal prop pressure maintaining device according to claim 4, wherein The side of the guide towards the inner support drive assembly is provided with a guide groove in communication with the guide hole; the inner support mechanism further comprises a transmission assembly, an elastic assembly and a connecting piece, the transmission assembly is slidably arranged in the guide groove, the elastic assembly is connected with the transmission assembly and the top opening piece at both ends, one end of the connecting piece is slidably inserted into the transmission assembly, and the other end of the connecting piece is connected with the top opening piece, and the inner support drive assembly is drivingly connected with the transmission assembly, so that the transmission assembly and the elastic assembly are drivingly connected with the top opening piece.

8. The internal prop pressure maintaining device according to claim 7, wherein The periphery of the guide member is provided with a limiting clamping groove in communication with the guide groove, and the periphery of the transmission assembly is provided with a limiting portion movably arranged in the limiting clamping groove along the axial direction of the guide member.

9. The internal prop pressure maintaining device according to any one of claims 1 to 3, wherein The first clamping assembly and the second clamping assembly each comprise: a support member arranged on one side of the guide member; a clamping driving member arranged on the support member; a mounting member drivingly connected with the clamping driving member; a guide member slidingly arranged in the mounting member and extending towards the guide member; a clamping member connected with one end of the guide member close to the guide member; and a buffer elastic member sleeved on the guide member, and two ends of the buffer elastic member are respectively connected with the mounting member and the clamping member.

10. The internal prop pressure maintaining device according to any one of claims 1 to 3, wherein The inner support pressure maintaining device further comprises a movement mechanism drivingly connected with the guide member, and the movement mechanism is used for driving the guide member to move.

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