Plug press fitting mechanism

Abstract

The application discloses a sealing plug press-fitting mechanism, which comprises a material receiving turntable and a press machine. The material receiving turntable is supported on a frame in a circumferential rotating manner and is provided with a plurality of accommodating cavities for accommodating different specifications of press heads and a plurality of material storage parts for accommodating different specifications of sealing plugs. The press machine is movably arranged on the frame and is used for assembling the press heads and then picking up the sealing plugs of corresponding specifications to perform a press-fitting operation. The material storage part has a side opening facing the press machine. According to the technical scheme, a vertical turntable structure is adopted, the disc surface area is fully utilized, and as many accommodating cavities and material storage parts as possible are reasonably arranged. The press machine is movable and is matched with the circumferential rotation of the turntable, so that the press machine can sequentially assemble the press heads arranged in the accommodating cavities and then pick up the sealing plugs from the material storage parts to perform the press-fitting operation. The press-fitting operation of as many different specifications of sealing plugs as possible can be completed in a smallest possible floor area, and the space utilization is remarkably improved.

Description

Technical Field

[0001] This application relates to the fields of mechanical manufacturing and automated assembly technology, and more specifically, to a sealing and pressing mechanism. Background Technology

[0002] In the field of mechanical manufacturing, especially in the production of engines, transmissions, and hydraulic systems, workpieces typically have multiple process holes due to the requirements of the machining process. To ensure the sealing of the internal cavities of the workpiece and prevent gas or liquid leakage, sealing plugs are usually used to tightly seal these process holes.

[0003] For example, interference-fit plugs, such as cup-shaped plugs and steel ball plugs, are widely used in sealing process holes in engine cylinder blocks due to their reliable connection, good sealing performance, and low cost. The installation of these plugs typically relies on specialized press-fitting equipment, which applies axial force through a pressure head to press them into pre-set holes on the workpiece.

[0004] However, with product diversification, multiple workpiece models often need to be processed on the same production line. Different workpiece models have different sizes of process holes, thus requiring the pressing of various specifications of sealing plugs. Currently, most traditional pressing equipment can only accommodate a limited range of sealing plug specifications. When switching to more workpiece models, a significant amount of time is spent changing the pressing head or adjusting the equipment, impacting production efficiency; alternatively, multiple pressing heads are required, making the entire pressing mechanism extremely complex, significantly increasing its size, and occupying excessive production space.

[0005] Therefore, how to improve a sealing plug pressing mechanism that can be compatible with various specifications of sealing plugs and occupies little space has become a technical problem that needs to be solved in this field. Summary of the Invention

[0006] In view of this, this application proposes a sealing plug pressing mechanism to be compatible with the pressing of various sealing plugs of different specifications, thereby improving space utilization.

[0007] According to this application, a sealing plug pressing mechanism is proposed, comprising: a receiving turntable rotatably supported on a frame and having multiple receiving cavities for accommodating pressing heads of different specifications and multiple storage sections for accommodating sealing plugs of different specifications; a press movably mounted on the frame for assembling the pressing heads and then picking up the sealing plugs of the corresponding specifications for pressing operations; the storage sections having a side opening facing the press.

[0008] Optionally, the receiving cavity is a cavity located in the body of the receiving turntable and is distributed around the center of the receiving turntable in a circumferential direction; the part of the receiving cavity that contacts the pressure head is provided with a limiting member for fixing the pressure head.

[0009] Optionally, the storage section is fixedly disposed on the receiving turntable, and can be selectively disposed on the side of the receiving turntable facing the press or on the side away from the press. When the storage section is located on the side of the receiving turntable away from the press, the bottom edge of the side opening of the storage section extends beyond the edge of the receiving turntable.

[0010] Optionally, the storage section is radially slidable on the receiving turntable; the receiving turntable further includes: a turntable slide rail, which is disposed on the same side of the receiving turntable as the storage section and extends radially along the center of the receiving turntable, serving as a guide for the radial sliding of the storage section; a first driving device, which is fixedly supported on the frame and has a driving arm for pushing the storage section to push the side opening out of the edge of the receiving turntable; and an elastic member, which is disposed on the same side of the receiving turntable as the storage section, with one end connected to the storage section and the other end connected to the receiving turntable, for preventing the storage section from slipping.

[0011] Optionally, the pressure head has a contact end face that matches the sealing plug, and the contact end face has a negative pressure adsorption port for adsorbing the sealing plug.

[0012] Optionally, the sealing plug pressing mechanism further includes a feeding section, which is disposed on the frame and has a feeding port located above the storage section for feeding the sealing plug into the storage section; the storage section has an upper opening for receiving the feeding.

[0013] Optionally, the feeding unit has multiple feeding bins, which are arranged side by side along the Y-axis and have the freedom to move along the Y-axis, which is parallel to the plane of the receiving turntable.

[0014] Optionally, the sealing plug pressing mechanism further includes a pre-feeding section, which is movably disposed on the frame along the X-axis and is positioned above the feeding section, for replenishing the sealing plug from the pre-feeding section to the feeding section.

[0015] Optionally, the sealing and pressing mechanism further includes a counter-attaching mechanism, which includes: an X-axis moving part, a counter-attaching base slidably mounted on the X-axis moving part, a Y-axis moving part on the counter-attaching base, a support plate slidably mounted on the Y-axis moving part, and a locking part for locking the counter-attaching base to move along the X-axis; the support plate is provided with a plurality of support columns on the workpiece side, and the support columns are used to abut against the workpiece.

[0016] Optionally, the locking part includes a stop fixed to the frame, a Z-axis moving part fixedly installed on the vertical surface of the anti-backing base, and a wedge-shaped part slidably installed on the Z-axis moving part. The wedge-shaped part is used to wedge between the anti-backing base and the stop to restrict the sliding of the anti-backing base. According to the technical solution of this application, by adopting a vertical turntable structure, the turntable area is fully utilized to reasonably arrange as many receiving cavities and storage sections as possible. While rotating circumferentially, it cooperates with a movable press, so that the press can sequentially assemble the pressure heads placed in each receiving cavity and then pick up the sealing plugs from each storage section for pressing operations. This allows the pressing operations of as many different specifications of sealing plugs as possible to be completed in the smallest possible area, significantly improving space utilization.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings: Figure 1-2 This is a perspective view of the sealing and pressing mechanism according to a preferred embodiment of this application; Figure 3 This is a partial schematic diagram of a receiving turntable according to a preferred embodiment of this application; Figure 4 for Figure 3 Detailed view of area A; Figure 5 for Figure 3 Detailed view of area B (rear view); Figure 6 This is a perspective view of a press according to a preferred embodiment of the present application; Figure 7 This is a perspective view of the feeding unit and the pre-feeding unit according to a preferred embodiment of this application; Figure 8 This is a bottom view of the feeding section according to a preferred embodiment of this application; Figure 9-10 This is a perspective view of the anti-collision mechanism according to a preferred embodiment of the present application; Figure 11 This is a detailed view of the limiting device of the feeding section according to a preferred embodiment of this application.

[0019] Explanation of the attached drawing numbers: Receiving turntable 10 (including receiving cavity 11 (including limiting member 111), storage section 12 (including side opening 121, top opening 122), turntable slide rail 13, first drive device 14 (including drive arm 141), elastic member 15); Press 20 (including press head 21 (including contact end face 211, negative pressure suction port 212), bearing plate 22, Z-axis guide rail 23, Z-axis drive device 24); Feeding... Material section 30 (including feeding port 31, feeding bin 32, limiting device 33 (including fixed column 331, first limiting column 332, second limiting column 333)); front feeding section 40; backing mechanism 50 (including X-axis moving part 51, backing base 52, Y-axis moving part 53, support plate 54 (including support column 541), locking part 55 (including stop block 551, Z-axis moving part 552, wedge part 553)). Detailed Implementation

[0020] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 and Figure 2 As shown, this application provides a sealing plug pressing mechanism, which includes a receiving turntable 10 and a press 20. The receiving turntable 10 is rotatably supported on a frame and has multiple receiving cavities 11 for accommodating press heads 21 of different specifications and multiple storage sections 12 for accommodating sealing plugs of different specifications. The press 20 is movably mounted on the frame and is used to assemble the press head 21 and then pick up the corresponding specification of sealing plug for pressing operation. The storage section 12 has a side opening 121 facing the press 20.

[0022] According to the technical solution of this application, by adopting a vertical turntable structure, the turntable area is fully utilized to reasonably arrange as many receiving cavities 11 and storage sections 12 as possible. While rotating circumferentially, it cooperates with a movable press 20, so that the press 20 can sequentially assemble the press head 21 placed in each receiving cavity 11 and then pick up the sealing plug from each storage section 12 for pressing operation. This can complete the pressing operation of as many sealing plugs of different specifications as possible in the smallest possible floor space, significantly improving space utilization.

[0023] In this embodiment, such as Figure 2 , 6As shown, the press 20 is mounted on a frame and supported by a support plate 22, which is slidably mounted on a Z-axis guide rail 23 via a sliding seat. The support plate 22 is connected to the drive end of a Z-axis drive device 24; therefore, under the drive of the Z-axis drive device 24, the press 20 can move along the Z-axis. The press 20 itself has a drive shaft parallel to the X-axis. The Z-axis is parallel to the plane of the receiving turntable 10, and the X-axis is perpendicular to the plane of the receiving turntable 10. Therefore, the pressing process is as follows: The receiving turntable 10 rotates around its own center, causing the pressing head 21 in the receiving cavity 11 to move to a position facing the Z-axis; the press 20 moves under the drive of the Z-axis drive device 24 to be flush with the pressing head 21, and then the press 20 extends its own drive shaft to contact the pressing head 21, and the press 20 and the pressing head 21 are assembled; the press 20 drive shaft moves backward, and the receiving turntable 10 continues to rotate, causing the storage part 12 equipped with the sealing plug to move to a position facing the Z-axis; the press 20 moves again to be flush with the sealing plug, the pressing head 21 has a contact end face 211 that matches the sealing plug, the contact end face 211 has a negative pressure adsorption port 212 for adsorbing the sealing plug, and the drive shaft extends forward to allow the pressing head 21 to adsorb the sealing plug; the industrial robot moves the workpiece to move the process port to be sealed to a position facing the Z-axis, the press 20 moves along the Z-axis again, and then the drive shaft extends forward to press the sealing plug into the process port, thus completing the sealing plug pressing work.

[0024] like Figure 3 As shown, the receiving cavity 11 is a cavity located in the body of the receiving turntable 10. To accommodate more pressure heads 21, the distribution of the receiving cavities 11 is rationally arranged. Preferably, the receiving cavities 11 are distributed circumferentially around the center of the receiving turntable 10. To prevent the pressure head 21 from falling out of the receiving cavity 11 when the receiving turntable 10 rotates, preferably, a limiting member 111 for fixing the pressure head 21 is provided at the contact point between the receiving cavity 11 and the pressure head 21. Figure 4 As shown, in one embodiment, the limiting member 111 is a spring post with a spherical end. The spherical surface abuts against the cylindrical axial surface of the pressure head 21 to apply a fixing force to the pressure head 21. After the press 20 completes the assembly of the pressure head 21, it moves upward under the action of the Z-axis drive device 24, thereby overcoming the limiting force of the spring post. It can be understood that the receiving cavity 11 can also be made into a shape that matches the maximum contour of the pressure head 21, so that the pressure head 21 is embedded in the receiving cavity 11, thereby eliminating the need for the limiting member 111.

[0025] In this embodiment, a bowl-shaped plug is used as the sealing plug as an example, such as... Figure 5As shown, the storage section 12 is a square cavity adapted to the size of the cup-shaped plug. The spacing between the inner walls of the cavity is equal to the outer diameter of the cup-shaped plug to restrict the movement of the cup-shaped plug. To facilitate the press 20 in picking up the cup-shaped plug, the storage section 12 has a side opening 121 facing the press 20. The storage section 12 is fixedly mounted on the receiving turntable 10 and can be selectively positioned on the side of the receiving turntable 10 facing the press 20 or on the side away from the press 20. When the storage section 12 is located on the side of the receiving turntable 10 away from the press 20, the bottom edge of the side opening 121 of the storage section 12 extends beyond the edge of the receiving turntable 10, so that the press 20 can move along the Z-axis to the side opening 121 of the storage section 12 to pick up the sealing plug.

[0026] When the storage section 12 is located on the side of the receiving turntable 10 away from the press 20, the storage section 12, which extends beyond the edge of the receiving turntable 10, obviously occupies more space. Preferably, the storage section 12 is radially slidable on the receiving turntable 10, so that the storage section 12 can be housed on the back of the receiving turntable 10. To achieve the function of housing the storage section 12, such as... Figure 3 As shown, the receiving turntable 10 also includes a turntable slide rail 13, a first driving device 14, and an elastic element 15. The turntable slide rail 13 is disposed on the same side as the storage section 12 on the receiving turntable 10 and extends radially along the center of the receiving turntable 10, serving as a guide for the radial sliding of the storage section 12. The storage section 12 is connected to the turntable slide rail 13 via a sliding seat. The first drive device 14 is fixedly supported on the frame and has a drive arm 141 for pushing the storage section 12 to push the side opening 121 out of the edge of the receiving turntable 10. In this embodiment, the first drive device 14 is supported on a support shaft at the center of the receiving turntable 10, so the drive arm 141 can reciprocate along the diameter of the circle, thereby pushing the storage section 12 to move along the turntable slide rail 13. The elastic member 15 is disposed on the same side as the storage section 12 on the receiving turntable 10, with one end connected to the storage section 12 and the other end connected to the receiving turntable 10, for preventing the storage section 12 without the limiting device 33 from sliding down along the turntable slide rail 13.

[0027] To increase the continuity of the pressing operation and replenish the material to the receiving turntable 10 in a timely manner, preferably, the sealing plug pressing mechanism also includes a feeding section 30. The feeding section 30 is disposed on the frame, and the feeding port 31 of the feeding section 30 is located above the storage section 12 for feeding the sealing plugs into the storage section 12; the storage section 12 has an upper opening 122 for receiving the fed material. The feeding section 30 can accommodate multiple sealing plugs and has a limiting device 33 for feeding the sealing plugs one by one. As an embodiment, such as Figure 11As shown, the limiting device 33 is fixed by inserting a fixing post 331 into a reserved hole on the vertical surface of the feeding section 30. The limiting post itself has a driving device for driving the first limiting post 332 and the second limiting post 333 to extend and retract. The feeding section 30 has a through hole through which the first limiting post 332 and the second limiting post 333 pass and contact the sealing block. The first limiting post 332 is used to limit the sealing block located at the bottom of the feeding bin 32, and the second limiting post 333 is used to limit the sealing block located at the second bottom of the feeding bin 32. During feeding, the first limiting post 332 retracts to release the bottom sealing block, causing it to fall into the storage section 12; the second limiting post 333 extends to block the second bottom sealing block; then the first limiting post 332 extends and the second limiting post 333 retracts, so that the original second bottom sealing block is located at the feeding port 31 waiting to be fed next.

[0028] To accommodate sealing plugs of different specifications, preferably, the feeding unit 30 has multiple feeding bins 32, which are arranged side-by-side along the Y-axis and have the freedom to move along the Y-axis. Figure 8 As shown, the feeding bins 32 have different sizes. The feeding bins 32 can be moved along the Y-axis on the frame via slide rails, so that feeding bins 32 of different specifications can be moved above the corresponding storage section 12 to complete feeding.

[0029] When the feeding section 30 is located at the deepest part of the mechanism, workers cannot replenish materials in a timely manner. Preferably, the sealing and pressing mechanism further includes a front feeding section 40, which is located in a position accessible to workers for easy replenishment. In this embodiment, as... Figure 7 As shown, the front feeding unit 40 is movable along the X-axis on the frame via a slide rail, and the front feeding unit 40 is set higher than the feeding unit 30. By controlling the front feeding unit 40 to move along the X direction and the feeding unit 30 to move along the Y direction, when the paths of the two intersect, the blockage is replenished from the front feeding unit 40 to the feeding unit 30.

[0030] To maintain the stability of the workpiece during press-fitting and prevent the industrial robot holding the workpiece from wobbling under pressure, which could cause the sealant to misalign with the process port and damage the inner wall of the process hole, leaving potential air or liquid leaks, the sealant press-fitting mechanism preferably includes a backing mechanism 50. The backing mechanism 50 includes: an X-axis moving part 51, a backing base 52 slidably mounted on the X-axis moving part 51, a Y-axis moving part 53 on the backing base 52, a support plate 54 slidably mounted on the Y-axis moving part 53, and a locking part 55 for locking the backing base 52 along the X-axis; the support plate 54 has multiple support columns 541 facing the workpiece, which abut against the workpiece. Figure 9-10As shown, the X-axis moving part 51 includes multiple slide rails and a driving device, with its driving end connected to the anti-support base 52 for driving the anti-support base 52 to slide along the X-axis direction; the Y-axis moving part 53 includes multiple slide rails and a driving device installed on the vertical surface of the anti-support base 52, with its driving end connected to the support plate 54 for driving the support plate 54 to slide along the Y-axis direction. During operation, the industrial robot moves the workpiece to move the process port to be sealed to a position facing the Z-axis. Subsequently, the X-axis moving part 51 drives the anti-support mechanism 50 to move towards the workpiece as a whole, while the Y-axis moving part 53 drives the support plate 54 to move, so that the support column 541 on the support plate 54 aligns with the force-bearing position on the workpiece surface, and then fits against the workpiece. At this time, the locking part 55 locks the anti-support base 52, preventing it from retracting along the X-axis when subjected to pressure from the press, thereby providing stable support for the workpiece.

[0031] The locking part 55 can use a common guide rail lock. In order to withstand greater pressure, in this embodiment, such as... Figure 10 As shown, the locking part 55 includes a stop 551 fixed to the frame, a Z-axis moving part 552 fixedly installed on the vertical surface of the backing base 52, and a wedge-shaped part 553 slidably installed on the Z-axis moving part 552. The wedge-shaped part 553 is used to wedge between the backing base 52 and the stop 551 to limit the sliding of the backing base 52. The stop 551 is fixed to the frame according to the size of the workpiece to be loaded. The Z-axis moving part 552 is installed on the side of the backing base 52 away from the press 20 and includes multiple slide rails and a drive device. The wedge-shaped part 553 is slidably installed on the slide rails. When the support column 541 is in contact with the workpiece, the drive device drives the wedge-shaped part 553 to move along the Z-axis to the stop 551, thereby wedging tightly against the stop 551 and completing the reliable locking of the backing base 52.

[0032] The XYZ directions mentioned in this application are described with reference to the directions shown in the accompanying drawings. It is understood that the above-mentioned directional terms are used to clearly indicate the relative positional relationship of the technical solution of this application. The placement and arrangement of the products carrying the technical solution of this application are not limited to the positional relationship shown in the figures of this application. Therefore, the above-mentioned directional terms do not constitute a limitation on the scope of protection of this application.

[0033] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0034] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0035] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

Claims

1. A sealing and plugging mechanism, characterized in that, The sealing plug pressing mechanism includes: The receiving turntable (10) is rotatably supported on the frame and has multiple receiving cavities (11) for accommodating pressure heads (21) of different specifications and multiple storage sections (12) for accommodating sealing plugs of different specifications. Press (20), which is movably mounted on the frame, is used to assemble the press head (21) and then pick up the sealing plug of the corresponding specification for pressing operation; The storage section (12) has a side opening (121) facing the press (20).

2. The sealing and plugging mechanism according to claim 1, characterized in that: The receiving cavity (11) is a cavity located in the body of the receiving turntable (10) and is distributed around the center of the receiving turntable (10) along the circumferential direction; the part of the receiving cavity (11) that contacts the pressure head (21) is provided with a limiting member (111) for fixing the pressure head (21).

3. The sealing and plugging mechanism according to claim 1, characterized in that: The storage section (12) is fixedly disposed on the receiving turntable (10) and can be selectively disposed on the side of the receiving turntable (10) facing the press (20) or on the side away from the press (20). When the storage section (12) is located on the side of the receiving turntable (10) away from the press (20), the bottom edge of the side opening (121) of the storage section (12) extends beyond the edge of the receiving turntable (10).

4. The sealing and plugging mechanism according to claim 1, characterized in that: The storage section (12) is radially slidably disposed on the receiving turntable (10); the receiving turntable (10) further includes: Turntable slide rail (13), the turntable slide rail (13) is disposed on the same side of the material receiving turntable (10) and extends radially along the center of the material receiving turntable (10), serving as a guide for the radial sliding of the material receiving part (12); The first drive device (14) is fixedly supported on the frame and has a drive arm (141) for pushing the storage part (12) to push the side opening (121) out of the edge of the receiving turntable (10). An elastic element (15) is disposed on the same side of the material receiving turntable (10) as the material storage part (12). One end of the elastic element (15) is connected to the material storage part (12), and the other end is connected to the material receiving turntable (10) to prevent the material storage part (12) from slipping.

5. The sealing and plugging mechanism according to claim 1, characterized in that: The pressure head (21) has a contact end face (211) that matches the sealing plug, and the contact end face (211) has a negative pressure adsorption port (212) for adsorbing the sealing plug.

6. The sealing and plugging mechanism according to claim 1, characterized in that: The sealing plug pressing mechanism also includes a feeding section (30), which is disposed on the frame and the feeding port (31) of the feeding section (30) is located above the storage section (12) for feeding the sealing plug into the storage section (12); The storage section (12) has an upper opening (122) for receiving feeding materials.

7. The sealing and plugging mechanism according to claim 6, characterized in that: The feeding section (30) has multiple feeding bins (32), which are arranged side by side along the Y-axis and have the freedom to move along the Y-axis. The Y-axis is parallel to the plane of the receiving turntable (10).

8. The sealing and plugging mechanism according to claim 7, characterized in that: The sealing plug pressing mechanism also includes a pre-feeding section (40), which is movable along the X-axis on the frame and is positioned above the feeding section (30) to supply the sealing plug from the pre-feeding section (40) to the feeding section (30).

9. The sealing and plugging mechanism according to claim 1, characterized in that: The sealing and pressing mechanism further includes a reverse-adjustment mechanism (50), which includes: An X-axis moving part (51), a backing base (52) slidably mounted on the X-axis moving part (51), a Y-axis moving part (53) provided on the backing base (52), a support plate (54) slidably mounted on the Y-axis moving part (53), and a locking part (55) for locking the backing base (52) to move along the X-axis. The support plate (54) has a plurality of support columns (541) on the side facing the workpiece, and the support columns (541) are used to abut against the workpiece.

10. The sealing and plugging mechanism according to claim 9, characterized in that: The locking part (55) includes a stop (551) fixed to the frame, a Z-axis moving part (552) fixedly installed on the vertical surface of the backrest base (52), and a wedge-shaped part (553) slidably installed on the Z-axis moving part (552). The wedge-shaped part (553) is used to wedge between the backrest base (52) and the stop (551) to restrict the sliding of the backrest base (52).

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