Floating connecting device and hydraulic forming equipment
By designing a floating connection device for hydraulic forming equipment, the problem of mold lifting when the equipment switches the molds of different shapes of pipe fittings is solved, and the mold clamping line after the pipe fitting is eliminated, reducing production costs and cycles.
Patent Information
- Application Number
- CN202421572382.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-04
AI Technical Summary
When existing hydraulic forming equipment switches pipe fitting molds of different shapes, due to tolerance problems, the axis of the plug is higher than the axis of the mold, and the mold lifting phenomenon occurs, resulting in two protruding mold clamping lines after the pipe fitting is formed, which requires subsequent grinding processes to increase production costs and cycles.
A floating connection device is designed, including a floating block, a water injection pipeline, a water outlet joint and a floating structure. The floating block is connected to the main shaft through a floating structure, so as to slide the floating block in the up and down direction relative to the main shaft, ensuring smooth water injection, and coincide with the mold axis at the water outlet channel axis of the water outlet joint to avoid mold lifting.
Through the floating connection device, the mold clamping line is avoided after the pipe fitting is formed, the subsequent grinding process is reduced, the production cost is reduced and the production cycle is shortened.
Smart Images
Figure CN222790325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic forming, in particular to a floating connection device and hydraulic forming equipment. Background Art
[0002] As consumers' requirements for the appearance of bicycles gradually increase, the shapes of bicycle pipe fittings are becoming more and more complex, and more and more pipe fittings are formed by hydraulic molding. The commonly used hydraulic molding process at this stage is to fix the plug on the main shaft of the hydraulic molding machine, and the water injection pipeline runs through the main shaft. The plug and the water injection pipeline are coaxial, so there is no height difference to ensure smooth water injection. However, when switching molds for pipe fittings of different shapes, due to tolerance problems, the axis of the plug is higher than the axis of the mold, and the plug, water injection pipeline and main shaft are fixedly connected. When the plug enters the mold, the mold will be lifted, resulting in two raised parting lines after the pipe fitting is formed. A grinding process needs to be added later, which increases production costs and production cycles. Utility Model Content
[0003] The utility model aims to provide a floating connection device and a hydraulic forming device to solve the problem of a mold lifting phenomenon and a mold line when the existing plug is matched with the mold.
[0004] The utility model provides a floating connection device, which is used for connecting with the main shaft of hydraulic forming equipment, and comprises a floating block, a water injection pipeline, a water outlet joint and a floating structure. The floating block is provided with an input channel and an output channel, the input channel and the output channel are communicated, the axis of the input channel and the axis of the output channel are located in the same horizontal plane, the water injection pipeline is fixedly connected to the floating block, the water injection pipeline is provided with a water injection channel, the water injection channel is communicated with the input channel, the water outlet joint is fixedly connected to the floating block, the water outlet joint is provided with a water outlet channel, the water outlet channel is communicated with the output channel, the floating structure is arranged at one end of the floating block away from the water outlet joint, the floating block and the main shaft are connected through the floating structure, and the floating structure can make the floating block slide relative to the main shaft in the up and down directions.
[0005] As a preferred technical solution for the floating connection device, the floating structure includes a dovetail groove and a dovetail slider. The floating block is provided with a dovetail groove extending in the up and down directions. The end of the main shaft is fixedly connected with a dovetail slider, and the dovetail slider is slidably connected to the dovetail groove.
[0006] As a preferred technical solution for the floating connection device, two floating grooves are also provided on the floating block, and the two floating grooves are respectively arranged at both ends of the dovetail groove and connected to the dovetail groove. Two floating blocks are fixedly connected to both ends of the dovetail slider, and the two floating blocks correspond to the two floating grooves respectively.
[0007] As a preferred technical solution for the floating connection device, the floating block is provided with a fixed end and a floating end, the fixed end is fixedly connected to the dovetail slider, the floating end cooperates with the floating groove and can slide in the floating groove, and the thickness of the floating end is less than the depth of the floating groove.
[0008] As a preferred technical solution of the floating connection device, an adjustment hole is provided on the floating end, and an adjustment member is connected to the adjustment hole. The adjustment member is used to change the sliding range of the floating end in the floating groove.
[0009] As a preferred technical solution for the floating connection device, the water outlet joint includes a connecting block and a plurality of plugs, the connecting block is provided with a connecting channel and a diversion channel that are interconnected, the connecting channel is connected to the output channel, the water outlet channel is provided on the plug, and the plurality of water outlet channels are all connected to the diversion channel, and the axis of the output channel, the axis of the connecting channel, the axis of the diversion channel and the axis of the water outlet channel are all located in the same horizontal plane.
[0010] As a preferred technical solution of the floating connection device, the diameter of the output channel is greater than or equal to the diameter of the connection channel.
[0011] As a preferred technical solution of the floating connection device, a first sealing member is provided between the connection block and the floating block, and the first sealing member is provided with a first opening at a position where the output channel and the connection channel communicate with each other.
[0012] As a preferred technical solution of the floating connection device, a second sealing member is provided between the water injection pipeline and the floating block, and the second sealing member is provided with a second opening at a position where the water injection channel and the input channel are connected.
[0013] The utility model provides a hydraulic forming device, comprising a main shaft and a floating connection device of any one of the above schemes, wherein a floating block is connected to the main shaft through a floating structure.
[0014] The beneficial effects of the utility model are:
[0015] The utility model provides a floating connection device, which realizes that a floating block can slide in the up and down directions relative to a main shaft through a floating structure, and at the same time, an input channel and an output channel whose axes are located in the same horizontal plane are arranged on the floating block, so as to ensure smooth water injection, and when there is a height difference between the axis of the water outlet channel of the water outlet joint and the axis of the mold, the floating block slides relative to the main shaft through the floating structure, so that the axis of the water outlet channel coincides with the axis of the mold, thereby avoiding mold lifting and thus avoiding the generation of a parting line, and no grinding process is required, thereby reducing production costs and shortening production cycles. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the floating connection device in the embodiment of the utility model at a first viewing angle;
[0017] Figure 2 It is a structural schematic diagram of the floating connection device in the embodiment of the utility model at a second viewing angle;
[0018] Figure 3 It is a front view of the floating connection device in the embodiment of the utility model;
[0019] Figure 4 for Figure 3 Section view along AA direction;
[0020] Figure 5 for Figure 4 A partial enlarged view of part B;
[0021] Figure 6 This is a schematic diagram of the structure of the floating stopper in the embodiment of the utility model;
[0022] Figure 7 This is a schematic diagram of the structure of the floating block in the embodiment of the utility model;
[0023] Figure 8 A side view of a floating block in an embodiment of the utility model;
[0024] Fig. 9 for Figure 8 Cross-sectional view along CC direction;
[0025] Fig.10 This is a schematic diagram of the structure of the water outlet joint in the embodiment of the utility model;
[0026] Fig.11 It is a side view of the water outlet joint in the embodiment of the utility model;
[0027] Fig.12 for Fig.11 Cross-sectional view along DD direction.
[0028] In the figure:
[0029] 100, spindle;
[0030] 1. Water injection pipeline; 11. Water injection channel;
[0031] 2. Floating block; 21. Input channel; 22. Output channel; 23. Dovetail groove; 24. Floating groove;
[0032] 3. Floating structure; 31. Dovetail slider; 32. Floating stopper; 321. Fixed end; 322. Floating end; 323. Fixed hole; 324. Adjustment hole;
[0033] 4. Water outlet joint; 41. Connecting block; 411. Connecting channel; 412. Diversion channel; 42. Plug; 421. Water outlet channel. DETAILED DESCRIPTION
[0034] The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0038] like Figure 1-Figure 12As shown, the utility model provides a floating connection device for connecting with the main shaft 100 of the hydraulic forming equipment. The floating connection device includes a floating block 2, a water injection pipeline 1, a water outlet joint 4 and a floating structure 3. The floating block 2 is provided with an input channel 21 and an output channel 22, the input channel 21 and the output channel 22 are connected, and the axis of the input channel 21 and the axis of the output channel 22 are located in the same horizontal plane to ensure smooth water injection. In addition, the diameter of the output channel 22 is greater than or equal to the diameter of the input channel 21 to avoid pressure loss during water injection. For ease of arrangement, the input channel 21 and the output channel 22 are arranged vertically. The water injection pipeline 1 and the water outlet joint 4 are both fixedly connected to the floating block 2, and the water injection pipeline 1 is provided with a water injection channel 11, which is used to communicate with the input channel 21, and the diameter of the water injection channel 11 is equal to the diameter of the input channel 21. After the water injection pipeline 1 is fixedly connected to the floating block 2, the water injection channel 11 is connected and aligned with the input channel 21. The water outlet joint 4 is provided with a water outlet channel 421, and the water outlet channel 421 is connected to the output channel 22. The floating structure 3 is provided at the end of the floating block 2 away from the water outlet joint 4, and the floating block 2 and the main shaft 100 are connected through the floating structure 3. The floating structure 3 can make the floating block 2 slide in the up and down direction relative to the main shaft 100. When there is a height difference between the axis of the water outlet channel 421 of the water outlet joint 4 and the axis of the mold, the floating block 2 slides relative to the main shaft 100 through the floating structure 3, so that the axis of the water outlet channel 421 coincides with the axis of the mold, avoiding the occurrence of mold lifting, thereby avoiding the generation of a parting line, and no grinding process is required, thereby reducing production costs and shortening production cycles.
[0039] Specifically, in this embodiment, considering the actual application scenario of the floating structure 3, the floating structure 3 adopts a dovetail sliding pair, which can realize the relative sliding of the floating block 2 and the main shaft 100, and can also better transmit the force of the main shaft 100 along its axial direction. In other embodiments, the floating structure 3 can adopt a floating joint or a universal joint, which can also achieve the same function, and the specific structure is not repeated here.
[0040] Furthermore, if Figure 1-Figure 7 As shown, the floating structure 3 includes a dovetail groove 23 and a dovetail slider 31. The floating block 2 is provided with a dovetail groove 23 extending in the up-down direction. The end of the main shaft 100 is fixedly connected with the dovetail slider 31, and the dovetail slider 31 is slidably connected with the dovetail groove 23. Through the cooperation of the dovetail groove 23 and the dovetail slider 31, on the one hand, the floating block 2 can slide up and down relative to the main shaft 100, and on the other hand, the connection between the main shaft 100 and the floating block 2 can be prevented from being disconnected.
[0041] For details, please refer to Figure 1-Figure 7As shown, in order to prevent the dovetail slider 31 from slipping out of the dovetail groove 23, two floating grooves 24 are further provided on the floating block 2. The two floating grooves 24 are respectively provided at the two ends of the dovetail groove 23 and are connected to the dovetail groove 23. Two floating blocks 32 are fixedly connected to the two ends of the dovetail slider 31. The two floating blocks 32 correspond to the two floating grooves 24 respectively, and the part of the floating block 32 located in the floating groove 24 can move in the floating groove 24. By providing two floating blocks 32 at the two ends of the dovetail slider 31, the sliding stroke of the dovetail slider 31 in the dovetail groove 23 can be controlled, thereby preventing the dovetail slider 31 from slipping out of the dovetail groove 23. Please refer to Figure 5-Figure 6 As shown, the floating stopper 32 is provided with a fixed end 321 and a floating end 322. The fixed end 321 is provided with a fixing hole 323, and the dovetail slider 31 is provided with a threaded hole correspondingly. The fastener passes through the fixing hole 323 and is connected with the threaded hole on the dovetail slider 31 to fix the fixed end 321 with the dovetail slider 31. The floating end 322 cooperates with the floating groove 24 and the floating end 322 can slide in the floating groove 24. The thickness of the floating end 322 is less than the depth of the floating groove 24. Correspondingly, the difference between the depth of the floating groove 24 and the thickness of the floating end 322 is the maximum stroke of the dovetail slider 31 sliding in one direction from the middle position.
[0042] Optionally, an adjustment hole 324 is provided on the floating end 322, and an adjustment member (not shown in the figure) is connected to the adjustment hole 324, and the adjustment member is used to change the sliding range of the floating end 322 in the floating groove 24. The adjustment hole 324 is set as a through hole that penetrates the floating end 322, and the adjustment member can pass through the adjustment hole 324 and can move in the adjustment hole 324, thereby changing the sliding stroke of the floating end 322 in the floating groove 24, and finally changing the maximum stroke of the dovetail slider 31 sliding in one direction from the middle position. In this embodiment, the adjustment hole 324 is preferably a threaded hole, and the adjustment member is preferably an adjustment bolt. The adjustment bolt is threadedly connected to the threaded hole and the length of the adjustment bolt is greater than the thickness of the floating end 322, so that the lower end of the adjustment bolt can extend out of the threaded hole. As the extension amount of the adjustment bolt increases, the distance between the lower end of the adjustment bolt and the bottom wall of the floating groove 24 decreases, and correspondingly, the maximum stroke of the dovetail slider 31 sliding in one direction from the middle position decreases.
[0043] Furthermore, if Figure 10-12As shown, the water outlet joint 4 includes an integrated connection block 41 and a plurality of plugs 42. The number of the plugs 42 is preferably two, and the two plugs 42 are spaced apart on the water outlet joint 4 in the horizontal direction. The connection block 41 is used to be fixedly connected with the floating block 2. The connection block 41 is provided with a connecting channel 411 and a diversion channel 412 that are connected. When the connection block 41 is fixedly connected with the floating block 2, the connection channel 411 is connected with the output channel 22. The diameter of the output channel 22 is greater than or equal to the diameter of the connection channel 411, thereby avoiding partial obstruction of the connection channel 411 by the floating block 2 due to the installation error between the connection block 41 and the floating block 2, and ensuring smooth water injection. The water outlet channel 421 is provided on the plug 42, and the plurality of water outlet channels 421 are all connected with the diversion channel 412, and water is distributed to the water outlet channels 421 of different plugs 42 through the diversion channel 412. The axis of the input channel 21, the axis of the output channel 22, the axis of the connecting channel 411, the axis of the diversion channel 412 and the axis of the water outlet channel 421 are all located in the same horizontal plane to further ensure smooth water injection.
[0044] Optionally, a first seal (not shown in the figure) is provided between the connection block 41 and the floating block 2, and the first seal is provided with a first opening at the communication position between the output channel 22 and the connection channel 411, so as to realize the communication between the output channel 22 and the connection channel 411 and seal the connection block 41 and the floating block 2 at the same time. Similarly, a second seal (not shown in the figure) is provided between the water injection pipeline 1 and the floating block 2, and the second seal is provided with a second opening at the communication position between the water injection channel 11 and the input channel 21, so as to realize the communication between the water injection channel 11 and the input channel 21 and seal the water injection pipeline 1 and the floating block 2 at the same time. The materials and structures of the first seal and the second seal are prior art and are not described here in detail.
[0045] The utility model provides a hydraulic forming device, including a main shaft 100 and a floating connection device in this embodiment. The floating block 2 of the floating connection device is connected to the main shaft 100 through a floating structure 3. By setting the floating connection device in this embodiment, during the hydraulic forming of bicycle pipe fittings, the water inlet pipeline, the plug 42 and the pipe fittings can be kept on the same horizontal plane, and at the same time, the axis of the plug 42 and the axis of the main shaft 100 can have a height difference within a certain range, so as to avoid mold lifting. There is no parting line on the formed pipe fittings, and there is no need to set a grinding process in the subsequent sequence, which reduces production costs and shortens the production cycle.
[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A floating connection device for connecting to a main shaft (100) of a hydraulic forming device, characterized in that: include: A floating block (2), the floating block (2) being provided with an input channel (21) and an output channel (22), the input channel (21) and the output channel (22) being connected, and the axis of the input channel (21) and the axis of the output channel (22) being located in the same horizontal plane; A water injection pipeline (1), the water injection pipeline (1) being fixedly connected to the floating block (2), the water injection pipeline (1) being provided with a water injection channel (11), the water injection channel (11) being in communication with the input channel (21); A water outlet joint (4), the water outlet joint (4) being fixedly connected to the floating block (2), the water outlet joint (4) being provided with a water outlet channel (421), the water outlet channel (421) being in communication with the output channel (22); A floating structure (3), wherein the floating structure (3) is arranged at one end of the floating block (2) away from the water outlet joint (4), the floating block (2) and the main shaft (100) are connected via the floating structure (3), and the floating structure (3) can enable the floating block (2) to slide in an up-and-down direction relative to the main shaft (100).
2. The floating connection device according to claim 1, characterized in that: The floating structure (3) comprises a dovetail groove (23) and a dovetail slider (31); the floating block (2) is provided with the dovetail groove (23) extending in the up-down direction; the end of the main shaft (100) is fixedly connected with the dovetail slider (31); and the dovetail slider (31) is slidably connected to the dovetail groove (23).
3. The floating connection device according to claim 2, characterized in that: The floating block (2) is also provided with two floating grooves (24), which are respectively provided at the two ends of the dovetail groove (23) and are in communication with the dovetail groove (23). Two floating blocks (32) are fixedly connected at the two ends of the dovetail slider (31), and the two floating blocks (32) correspond to the two floating grooves (24) respectively.
4. The floating connection device according to claim 3, characterized in that: The floating stopper (32) is provided with a fixed end (321) and a floating end (322), wherein the fixed end (321) is fixedly connected to the dovetail slider (31), the floating end (322) cooperates with the floating groove (24) and the floating end (322) can slide in the floating groove (24), and the thickness of the floating end (322) is less than the depth of the floating groove (24).
5. The floating connection device according to claim 4, characterized in that: The floating end (322) is provided with an adjustment hole (324), and the adjustment hole (324) is connected to an adjustment member, and the adjustment member is used to change the sliding range of the floating end (322) in the floating groove (24).
6. The floating connection device according to claim 1, characterized in that: The water outlet joint (4) comprises a connecting block (41) and a plurality of plugs (42); the connecting block (41) is provided with a connecting channel (411) and a diversion channel (412) which are connected to each other; the connecting channel (411) is connected to the output channel (22); the water outlet channel (421) is provided on the plug (42); a plurality of the water outlet channels (421) are connected to the diversion channel (412); and the axis of the output channel (22), the axis of the connecting channel (411), the axis of the diversion channel (412) and the axis of the water outlet channel (421) are all located in the same horizontal plane.
7. The floating connection device according to claim 6, characterized in that: The diameter of the output channel (22) is greater than or equal to the diameter of the connecting channel (411).
8. The floating connection device according to claim 6, characterized in that: A first sealing member is provided between the connecting block (41) and the floating block (2), and the first sealing member is provided with a first opening at a position where the output channel (22) and the connecting channel (411) communicate with each other.
9. The floating connection device according to claim 1, characterized in that: A second sealing member is provided between the water injection pipeline (1) and the floating block (2), and the second sealing member is provided with a second opening at a position where the water injection channel (11) and the input channel (21) are connected.
10. A hydraulic forming apparatus comprising a spindle (100), characterized in that: It also comprises the floating connection device according to any one of claims 1 to 9, wherein the floating block (2) is connected to the main shaft (100) through the floating structure (3).