A press-fitting mechanism

Abstract

The present application provides a kind of press fitting mechanism, by the optimization design of press fitting mechanism including pressing device, positioning device and pressure balance device, positioning device is equipped with first positioning member and second positioning member, pressure balance device includes support, balancing member and pressure rod, balancing member can rotate relative to support, when pressing block exerts pressure on first component, the core rod of first positioning member is pressed down and abuts with one side of balancing member, balancing member and pressure rod abut to make first component complete press fitting, and the other side of balancing member can rotate predetermined angle and abut with the core rod of second positioning member to make second component rise and abut with pressing block, so that second component also completes press fitting, by the setting of pressure balance device, so that the press fitting of first component and second component in the two stations of first positioning member and second positioning member is completed, which can improve the press fitting efficiency while ensuring that the corresponding assembly can be press fitted in place.

Description

Technical Field

[0001] This application relates to the field of press-fitting equipment technology, and specifically to a press-fitting mechanism. Background Technology

[0002] Iron dryer filters, iron silencers and other products include end cap assemblies and bodies. The end cap assembly includes a cover body and a connecting pipe. The cover body has mating holes, and the connecting pipe can be press-fitted into the mating holes and then fixed by welding. To ensure that the weld is continuous and full and the penetration depth is uniform, the connecting pipe must be pressed into place during the press-fitting process.

[0003] Conventional pressing methods are all single-station pressing. During operation, one hand must hold down the connecting pipe part while the other hand installs the end cap part, and the press must be raised and lowered using a foot pedal. The pressing efficiency is relatively low.

[0004] Therefore, how to improve pressing efficiency while ensuring that the workpiece can be pressed into place is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a pressing mechanism that can improve pressing efficiency while ensuring that all corresponding components can be pressed into place.

[0006] This invention provides a pressing mechanism, comprising a pressing device, a positioning device, and a pressure balancing device. The positioning device is located between the pressing device and the pressure balancing device. The pressing device includes a pressing block. The positioning device includes a first positioning element and a second positioning element. Each of the first and second positioning elements includes a positioning seat, a core rod, and a spring. The spring elastically supports the core rod. The first and second positioning elements are respectively used to adapt to a first component and a second component.

[0007] The pressure balancing device includes a support, a balancing component, and a pressure-bearing component. The balancing component is rotatable relative to the support. When the pressure block applies force to the first component, the core rod of the first positioning component abuts against one side of the balancing component, and the balancing component abuts against the pressure-bearing component. The other side of the balancing component can rotate a predetermined angle to abut against the core rod of the second positioning component, so that the second component abuts against the pressure block.

[0008] This invention provides a pressing mechanism, which includes a pressing device, a positioning device, and a pressure balancing device through optimized design. The positioning device has a first positioning element and a second positioning element. The pressure balancing device includes a support, a balancing element, and a pressure rod. The balancing element can rotate relative to the support. When the pressing block applies pressure to the first component, the core rod of the first positioning element presses down and abuts against one side of the balancing element. The abutment between the balancing element and the pressure rod enables the first component to be pressed. The other side of the balancing element can rotate by a predetermined angle and abut against the core rod of the second positioning element, causing the second component to rise and abut against the pressing block, thereby also completing the pressing fit of the second component. With the help of the pressure balancing device, the pressing of the first component and the second component at the two workstations of the first positioning element and the second positioning element is completed, which can improve the pressing efficiency while ensuring that the corresponding components can be pressed into place. Attached Figure Description

[0009] Figure 1 This is a side view of the pressing mechanism provided in the embodiment of this application;

[0010] Figure 2 yes Figure 1 Enlarged view of A in the middle;

[0011] Figure 3 yes Figure 2 A partial sectional view of the middle cover and connecting pipe in the installed state;

[0012] Figure 4 This is a front view of the pressing mechanism provided in the embodiment of the application;

[0013] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0014] Figure 6 yes Figure 5 A schematic diagram of the pressure balancing device.

[0015] Appendix Figures 1-6 The reference numerals in the attached figures are explained as follows:

[0016] 1 rack;

[0017] 2 Positioning device, 21 First positioning component, 22 Second positioning component, 23 Positioning seat, 24 Positioning disk, 25 Positioning shaft, 26 Mandrel, 261 Limiting structure, 27 Spring;

[0018] 3 Pressing device, 31 Driving component, 32 Support rod, 33 Pressing block, 34 Pressing area, 35 Guide block;

[0019] 4. Pressure balancing device, 41. Support, 42. Rotating shaft, 43. Base plate, 44. Pressure bearing component, 45. Connecting block, 46. Balancing component;

[0020] 5. Pressure plate;

[0021] 6. Power Unit;

[0022] 7 guide section, 71 cylindrical section, 72 fixing structure, 73 guide groove;

[0023] 101 Cover; 102 Connector. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This application provides a pressing mechanism that can simultaneously press two components, a first component and a second component, to improve pressing efficiency and is suitable for mass production.

[0026] Specifically, the first and second components have the same structure. Each component includes a first part and a second part. Taking the first part as the cover 101 and the second part as the connector 102 as an example, this component can serve as an end cap assembly for products such as iron drying filters and iron silencers. The cover 101 is provided with a mating hole that matches the connector 102. Before pressing, the connector 102 is pre-assembled with the mating hole of the cover 101. Then, the component can be pressed into place by the pressing mechanism. When the bottom end of the connector 102 is in seamless circumferential contact with the mating hole of the cover 101, the connector 102 is pressed into place and the end cap assembly is pressed into place.

[0027] like Figure 1 , Figure 4 and Figure 5 As shown, the pressing mechanism includes a frame 1 and a pressing device 3, a positioning device 2, and a pressure balancing device 4 disposed on the frame 1. The positioning device 2 is located between the pressing device 3 and the pressure balancing device 4 and is used to position the component to be pressed. The pressing device 3 includes a driving member 31 and a pressing block 33. A pressing area 34 is formed between the pressing block 33 and the balancing member 46. The pressing block 33 can move closer to the pressure balancing device 4 under the driving action of the driving member 31 to realize the pressing operation of the component located in the pressing area 34.

[0028] Specifically, the positioning device 2 includes a first positioning element 21 and a second positioning element 22. The first positioning element 21 is used to cooperate with the first component for positioning, and the second positioning element 22 is used to cooperate with the second component for positioning. In other words, the positioning device 2 can simultaneously position two components to be pressed. The driving element 31 drives the pressing block 33 to move, which can simultaneously press the first component and the second component to perform pressing operations on the two components at the same time. The overall structure is simple and effectively improves pressing efficiency, which is conducive to mass production.

[0029] The first positioning member 21 and the second positioning member 22 have the same structure, each including a positioning seat 23, a core rod 26, and a spring 27. The spring 27 provides elastic support for the core rod 26. The positioning seat 23 is used to position the component. Specifically, in this embodiment, the specific structure of the positioning seat 23 is not specifically limited, and can be set according to the structure of the first and second parts of the component.

[0030] like Figure 2 and Figure 3 As shown, when the first part is the cover 101 and the second part is the connecting pipe 102, the positioning seat 23 includes a positioning disk 24 and a positioning shaft 25. The positioning disk 24 and the positioning shaft 25 can be an integral structure or independent and fixed structures. The positioning disk 24 is positioned by cooperating with the inner peripheral wall of the cover 101 through its circumferential outer wall. The connecting pipe 102 can be sleeved on the outside of the positioning shaft 25 and connected to the mating hole of the positioning disk 24. The length of the positioning shaft 25 is less than the length of the connecting pipe 102.

[0031] The positioning seat 23 can simultaneously position the cover 101 and the connecting pipe 102. During installation, the operator can place both covers 101 on the positioning seat 23 with both hands and position them using the positioning plate 24. Then, the operator can place both connecting pipes 102 on the positioning seat 23 with both hands and position them using the positioning shaft 25, so that the bottom end of the connecting pipe 102 can connect with the mating hole of the cover 101. The cover 101 and the connecting pipe 102 are in a state of waiting to be pressed together. In other words, the installation process can achieve coordinated loading and unloading operations with both hands, which is highly efficient and safe.

[0032] like Figure 5 and Figure 6 As shown, the pressure balancing device 4 includes a support 41, a balancing member 46, and a pressure-bearing member 44. The balancing member 46 can rotate relative to the support 41. When the pressure block 33 applies force to the first component, the core rod 26 of the first positioning member 21 abuts against one side of the balancing member 46, one side of the balancing member 46 abuts against the pressure-bearing member 44, and the other side of the balancing member 46 can rotate at a preset angle to abut against the core rod 26 of the second positioning member 22, so that the second component abuts against the pressure block 33.

[0033] In detail, during the pressing process, if there is a dimensional deviation between the two caps 101 or the two connecting pipes 102, the longer component will be pressed into place first, while the shorter component may not be pressed into place. To avoid this problem, the balancer 46 in this embodiment can rotate to abut against the first and second components respectively, so as to ensure that each component is pressed into place. This ensures pressing efficiency while guaranteeing the pressing quality of each component and improving product yield.

[0034] The pressure balancing device 4 also includes a rotating shaft 42, which passes through the support 41 and the balancing member 46. The rotating shaft 42 is fixedly connected to the support 41. The balancing member 46 can rotate around the rotating shaft 42. The first positioning member 21 and the second positioning member 22 are respectively located on both sides of the rotating shaft 42. During the pressing process, the first member and the second member are respectively located on both sides of the rotating shaft 42. That is, the first end of the balancing member 46 abuts against the first member, the second end of the balancing member 46 abuts against the second member, and the rotating shaft 42 is located between the first end and the second end.

[0035] During the pressing process, the balancing component 46 can rotate around the rotating shaft 42 and continue to press the parts that have not been pressed into place, thereby ensuring that both parts can be pressed into place. This design is simple in structure and can ensure good contact stability between the balancing component 46 and the parts.

[0036] like Figure 6 As shown, the pressure balancing device 4 also includes a base plate 43 and a connecting block 45. The base plate 43 is fixed to the frame 1. The pressure-bearing component 44 is fixed between the base plate 43 and the connecting block 45. A support 41 is located on the connecting block 45. There are two supports 41, spaced apart, and a rotating shaft 42 connects the two supports 41. The rotating shaft 42, positioned between the two supports 41, ensures its stability, thereby guaranteeing the connection stability between the balancing component 46 and the rotating shaft 42. Furthermore, the arrangement of the pressure-bearing component 44 and the connecting block 45 allows for more flexible positioning of the rotating shaft 42; the pressure-bearing component 44 and the connecting block 45 can be positioned according to the actual required location of the rotating shaft 42.

[0037] In this embodiment, the specific structure of the pressure-bearing component 44 is not limited. For example, the pressure-bearing component 44 includes two pressure-bearing rods. One end of the pressure-bearing rod is fixed to the base plate 43, which can be fixed by welding or by threaded connection. The other end of the pressure-bearing rod is fixed to the connecting block 45, which can be fixed by welding or by threaded connection. Alternatively, the end of the pressure-bearing rod may be provided with a threaded part, which passes through the connecting block 45 and is fixed by a nut.

[0038] like Figure 5 As shown, the pressing block 33 is also provided with two guide blocks 35. These two guide blocks 35 are respectively provided with guide structures adapted to the first component and the second component. The guide structures can cooperate with the connecting pipe 102 and provide guidance during the pressing process, preventing the connecting pipe 102 from tilting or bending after being pressed, thereby ensuring precise pressing between the connecting pipe 102 and the cover 101. The bottom end of the guide block 35 is provided with a tapered guide surface, which can be partially inserted into the connecting pipe 102 and pressed against the connecting pipe 102.

[0039] like Figures 1-5As shown, the pressing mechanism also includes a pressing plate 5 and a power unit 6. The pressing plate 5 is provided with multiple positioning devices 2 at intervals. The power unit 6 is used to drive the pressing plate 5 to move, so that the pressing plate 5 drives each positioning device 2 to move into the pressing area 34. With this configuration, the operator can load and unload the positioning devices 2 on the pressing plate 5 located outside the pressing area 34, so that pressing and loading / unloading can be carried out simultaneously, thereby further improving pressing efficiency. Moreover, by driving the pressing plate 5 to move through the power unit 6, the accuracy of the positioning devices 2 moving into the pressing area 34 can be guaranteed, without the need to adjust the position of the positioning devices 2, which is both accurate and efficient.

[0040] Furthermore, the pressure plate 5 is a disc or annular disc, and the positioning devices 2 are evenly spaced along the circumference of the pressure plate 5. The power unit 6 can drive the pressure plate 5 to rotate around its axis and drive each positioning device 2 to rotate sequentially into the pressing area 34. Alternatively, the pressure plate 5 can be configured as a structure similar to a transmission belt. When the pressure plate 5 is configured as a disc or annular disc, the pressing efficiency can be improved by approximately 100%, while the structure of the power unit 6 is simplified and the space arrangement requirements are reduced.

[0041] like Figure 2 , Figure 3 and Figure 5 As shown, the mandrel 26 is arranged along the pressing direction. One end of the mandrel 26 is fixed to the positioning seat 23, specifically to the positioning plate 24. The other end of the mandrel 26 can pass through the guide hole provided in the pressure plate 5 and abut against the balance member 46. The spring 27 is sleeved on the outer periphery of the mandrel 26 and sandwiched between the positioning seat 23 and the pressure plate 5. With this arrangement, the pressure plate 5 is not subjected to force during the pressing process, reducing the strength requirement of the pressure plate 5.

[0042] The mandrel 26 can move axially relative to the pressure plate 5. During the pressing process, the pressure block 33 presses down on the connecting pipe 102 along the pressing direction, which can push the positioning device 2 and the mandrel 26 downward until the bottom of the mandrel 26 abuts against the balance member 46. As the pressure block 33 continues to press down, the spring 27 is compressed. After the pressing is in place, the driving force of the drive member 31 is released, and the compressed spring 27 can provide a rebound force, causing the mandrel 26 to move upward along the guide hole and disengage from the balance member 46. That is to say, before pressing, the mandrel 26 and the balance member 46 are in a disengaged state. In this way, when the pressure plate 5 drives the positioning device 2 to move into the pressing area 34, interference between the mandrel 26 and the balance member 46 can be avoided.

[0043] A guide portion 7 is also provided at the guide hole. The guide portion 7 includes a cylindrical portion 71, which is installed in the guide hole and fixed to the pressure plate 5. Specifically, it can be fixed by welding or fasteners. The mandrel 26 can pass through the cylindrical portion 71 and can move axially relative to the cylindrical portion 71. The cylindrical portion 71 can provide guidance for the mandrel 26, increase the axial guide length between the cylindrical portion 71 and the mandrel 26, and ensure guide stability.

[0044] The outer wall of the cylindrical portion 71 is also provided with a fixing structure 72, which can abut against the end face of the pressure plate 5 and fix it to the pressure plate 5. Specifically, it can abut against and fix to either the upper end face or the lower end face of the pressure plate 5. The fixing structure 72 can be a ring structure arranged along the circumference of the cylindrical portion 71 as shown in the figures, or it can be a fixing block provided on the outer wall of the cylindrical portion 71.

[0045] Furthermore, such as Figure 3 As shown, the guide portion 7 is provided with a guide groove 73 on the side facing the positioning device 2. The guide groove 73 is located at the top of the cylindrical portion 71, and the inner diameter of the guide groove 73 is larger than the inner diameter of the cylindrical portion 71. The guide groove 73 is connected to the cylindrical portion 71. The bottom end of the spring 27 is located in the guide groove 73. The guide groove 73 can provide guidance for the spring 27 from the outside, preventing the spring 27 from bending or even crushing during compression, thus ensuring the elastic force and service life of the spring 27.

[0046] like Figure 2 and Figure 3 As shown, the bottom of the mandrel 26 is also provided with a limiting structure 261, which can abut against the bottom end of the cylinder 71 to prevent the mandrel 26 from moving upward under the action of the spring 27 and disengaging from the cylinder 71, thus ensuring the stability of the overall structure.

[0047] In this embodiment, the specific structure of the driving component 31 is not limited; the driving component 31 can be as follows: Figure 4 The drive cylinder shown can be either a pneumatic cylinder or a hydraulic cylinder. The piston rod of the drive cylinder is connected to the pressure block 33 and pushes the pressure block 33 downward. The pressing part also includes a support rod 32, which can be fixed to the frame 1 by means of threaded nut connection or welding. The drive component 31 is fixed to the support rod 32, and the support rod 32 can provide support for the drive component 31.

[0048] Alternatively, the drive unit 31 can be configured to include a motor and a lead screw, with the lead screw threadedly connected to a nut, and the nut connected to a pressure block 33. The motor drives the lead screw to rotate, and the nut can drive the pressure block 33 to move along the axial direction of the lead screw.

[0049] Specifically, the pressure plate 5 is controlled to rotate by the power unit 6. The power unit 6 can control the pressure plate 5 to rotate a certain angle within a preset time (such as 2s-3s), so that the next positioning device 2 rotates into the pressing area 34. The drive unit 31 is controlled by a delay switch. After the positioning device 2 rotates into the pressing area 34, the delay switch starts to work, the drive unit 31 moves and drives the pressing block 33 to press down and perform the pressing operation.

[0050] When the pressure block 33 is pressed down, it can contact the top of the tube 102. The tube 102 moves downward under pressure, and drives the cover 101, the positioning device 2, and the core rod 26 to move downward together until the bottom of the core rod 26 abuts against the balance member 46. As the pressure block 33 continues to press down, the spring 27 is compressed.

[0051] If the height of the first component on the left is higher than the height of the second component on the right, the pressure block 33 will press the left pipe 102 into place first. The pressure of the drive cylinder will be maintained, the left end of the balance component 46 will be pressed down and rotate counterclockwise around the rotating shaft 42 by a certain angle, so that the right end of the balance component 46 will rise and push the right mandrel 26 to rise, thereby pressing the right pipe 102 into place as well.

[0052] If the height of the second component on the right is higher than the height of the first component on the left, the pressure block 33 will press the right pipe 102 into place first, the drive cylinder pressure will be maintained, the right end of the balance component 46 will be pressed down and rotated clockwise around the rotating shaft 42 by a certain angle, so that the left end of the balance component 46 will rise and push the core rod 26 on the left to rise, so that the left pipe 102 will also be pressed into place.

[0053] After the pressing is completed, the drive cylinder stops working, the pressure block 33 rises, and as the mandrel 26 loses its downward pressure, the spring 27 sleeved on the outer end of the mandrel 26 also loses its downward pressure. When the spring 27 rebounds and rises, it drives the positioning mandrel 26 to rise to the initial position.

[0054] The power unit 6 drives the pressure plate 5 to rotate, causing the next positioning device 2 to rotate into the pressing area 34. The pressed part leaves the pressing area 34, and the operator can manually remove the pressed part to the turnover position.

[0055] The above actions are repeated.

[0056] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A pressing mechanism, characterized in that, The device includes a pressing device, a positioning device, and a pressure balancing device. The positioning device is located between the pressing device and the pressure balancing device. The pressing device includes a pressing block. The positioning device includes a first positioning element and a second positioning element. Each of the first and second positioning elements includes a positioning seat, a core rod, and a spring. The spring elastically supports the core rod. The first and second positioning elements are respectively used to adapt to the first component and the second component. The pressure balancing device includes a support, a balancing component, and a pressure-bearing component. The balancing component can rotate relative to the support. When the pressure block applies force to the first component, the core rod of the first positioning component abuts against one side of the balancing component, one side of the balancing component abuts against the pressure-bearing component, and the other side of the balancing component can rotate a predetermined angle to abut against the core rod of the second positioning component, so that the second component abuts against the pressure block. When the height of the first component is higher than the height of the second component, the pressure block first presses the first component into place, and the balancer rotates to cause the side facing the first component to be pressed down and the side facing the second component to rise and push the corresponding mandrel to rise, so that the second component is pressed into place.

2. The pressing mechanism according to claim 1, characterized in that, The pressure balancing device also includes a rotating shaft disposed on the support, the rotating shaft passing through the support and the balancing member, the rotating shaft being fixedly connected to the support, the balancing member being able to rotate around the rotating shaft, and the first positioning member and the second positioning member being located on both sides of the rotating shaft respectively.

3. The pressing mechanism according to claim 2, characterized in that, The pressure balancing device also includes a base plate and a connecting block. The base plate is fixed to the frame. The pressure-bearing component is fixed between the base plate and the connecting block. The support is located on the connecting block. There are two supports, which are spaced apart. The rotating shaft is connected between the two supports.

4. The pressing mechanism according to claim 3, characterized in that, The pressure block is also provided with two guide blocks, and the guide blocks are provided with guide structures adapted to the first component and the second component.

5. The pressing mechanism according to any one of claims 1-4, characterized in that, It also includes a pressure plate and a power unit. The pressure plate is provided with multiple positioning devices at intervals. The power unit is used to drive the pressure plate to move and drive each of the positioning devices to move.

6. The pressing mechanism according to claim 5, characterized in that, The pressure plate is a circular or annular disc, and the positioning devices are evenly spaced along the circumference of the pressure plate. The power unit can drive the pressure plate to rotate.

7. The pressing mechanism according to claim 6, characterized in that, The positioning seat includes a positioning disk and a positioning shaft. The positioning disk and the positioning shaft are fixedly connected or are an integral structure. One end of the mandrel is fixedly connected to the positioning disk, and the other end of the mandrel can pass through the pressure plate and abut against the balance member. The mandrel can move axially relative to the pressure plate, and the spring is sleeved on the outer periphery of the mandrel.

8. The pressing mechanism according to claim 7, characterized in that, It also includes a guide portion fixed to the pressure plate, the guide portion including a cylindrical portion passing through the pressure plate, the mandrel passing through the cylindrical portion and being axially movable relative to the cylindrical portion.

9. The pressing mechanism according to claim 8, characterized in that, The guide portion is also provided with a guide groove on the side facing the positioning device, and the bottom end of the spring is located in the guide groove.

10. The pressing mechanism according to claim 9, characterized in that, The bottom of the mandrel is also connected to a limiting structure, which can abut against the bottom end of the cylinder to prevent the mandrel from disengaging from the guide portion.

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