Press fitting device and assembly system with same

Abstract

The invention provides a press-fitting device and an assembling system with the same. The press-fitting device comprises a fixed seat and a press-fitting device, the press-fitting assembly is provided with a base plate, a first driving structure and a second driving structure, the first driving structure is in driving connection with the base plate, the second driving structure is in driving connection with the pressing tool, the pressing tool is provided with a first ring layer, the bottom of the first ring layer is provided with an annular protrusion, and the annular protrusion abuts against the bottom of the open groove of the sealing ring; the size of the annular protrusion in the radial direction is smaller than that of the bottom of the open groove in the radial direction, the outer wall of the first ring layer is provided with an abutting part and a limiting part, the abutting part is used for abutting against the inner wall of the sealing ring, and the limiting part is used for abutting against the top of the sealing ring. The first clamping assembly is used for clamping the swing rod; and the second clamping assembly is used for clamping the rotating shaft, and the first clamping assembly and the second clamping assembly are matched to limit the position of the sealing ring relative to the pressing tool. By means of the technical scheme, the problem that in the prior art, when the sealing ring is installed in the guide cylinder, the edge turning condition is prone to occurring can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly systems, and in particular to a press-fit device and an assembly system having the same. Background Art

[0002] In the field of gas meter assembly, during the process of assembling the Y-type sealing ring, an auxiliary press is required to press the Y-type sealing ring into the guide tube of the main body. However, in the prior art, the auxiliary press is usually an ordinary sleeve structure. Due to the special V-groove structure of the Y-type sealing ring, when the sealing ring is installed into the guide tube, due to the lack of precise control and positioning, the outer ring of the sealing ring may be flanged under the action of pressure, affecting its sealing performance and assembly quality, thereby posing a serious threat to the accuracy and long-term reliability of the gas meter. Summary of the invention

[0003] The invention provides a press-fitting device and an assembly system having the same, so as to solve the problem in the prior art that the sealing ring is very likely to be flanging when being installed in a guide cylinder.

[0004] According to one aspect of the present invention, a press-fitting device is provided, wherein the diaphragm box comprises a body, a rocker arm and a rotating shaft, wherein the rocker arm is fixed in a mounting hole of the body, the rotating shaft is sequentially inserted into a guide cylinder of the body and a connecting cylinder of the rocker arm, a sealing ring is sleeved on the rotating shaft, and the press-fitting device comprises: a fixed seat for fixing the body; a press-fitting assembly, wherein the press-fitting assembly comprises a substrate, a first driving structure and a second driving structure, wherein the substrate is located above the fixed seat, the first driving structure is connected to the substrate for driving the substrate to move in a vertical direction, a press tool and a second driving structure are provided on the substrate, the second driving structure is connected to the press tool for driving the press tool to rotate along the axial direction of the rotating shaft, the press tool comprises a first ring layer, the first ring layer is sleeved on the outer side of the rotating shaft, and the bottom of the first ring layer has a ring shaped protrusion, the annular protrusion abuts against the bottom of the groove of the sealing ring, the radial size of the annular protrusion is smaller than the radial size of the bottom of the groove, the outer wall of the first ring layer is provided with an abutting portion and a limiting portion, the limiting portion is located on the side of the abutting portion away from the annular protrusion, the outer diameter of the limiting portion is larger than the outer diameter of the abutting portion, the abutting portion is used to abut against the inner wall of the sealing ring, and the abutting portion is adapted to the structure of the inner wall of the sealing ring, and the limiting portion is used to abut against the top of the sealing ring; a first clamping assembly, the first clamping assembly is used to clamp the rocker arm to limit the position of the rocker arm relative to the body; a second clamping assembly, the second clamping assembly is used to clamp the rotating shaft to limit the position of the rotating shaft relative to the body, the first clamping assembly and the second clamping assembly cooperate to limit the position of the sealing ring relative to the pressing tool.

[0005] Furthermore, the pressing tool also has a second ring layer, which is arranged around the outer circumference of the first ring layer. The first ring layer and the second ring layer are respectively located inside and outside the guide cylinder to limit the position of the guide cylinder.

[0006] Further, the ratio between the radial dimension of the annular protrusion and the radial dimension of the groove bottom is set between 0.2 and 0.4.

[0007] Furthermore, the second driving structure includes: a first driving member, one end of which is fixed on the base plate; a gear transmission structure, the other end of which is drivingly connected to the gear transmission structure, and the gear transmission structure is connected to the pressing tool.

[0008] Furthermore, the gear transmission structure includes: a rack, a first driving member is drivingly connected to the rack, and the first driving member drives the rack to move along the extension direction of the substrate; a gear, meshing with the rack, and the gear sleeve is arranged on one end of the rotating shaft; a bearing seat, fixed on the substrate, the other end of the rotating shaft is arranged in the bearing seat, and the end of the press away from the annular protrusion is located in the bearing seat.

[0009] Furthermore, a first guiding structure is provided between the base plate and the rack to guide the movement of the rack.

[0010] Furthermore, a pulley is provided on the base plate, the pulley is located on the side of the rack away from the gear, a slide groove is provided on the side of the rack away from the gear, the pulley is located in the slide groove, and the slide groove and the pulley cooperate to form a first guide structure.

[0011] Furthermore, the second clamping assembly includes: a second driving member; a connecting plate, the second driving member is drivingly connected to the connecting plate; a third driving member, which is arranged on the connecting plate; two clamping members, the third driving member is drivingly connected to the two clamping members, the third driving member is used to drive the two clamping members to move closer to or away from each other, a clamping groove is provided between the two clamping members, the structure of the clamping groove is adapted to the structure of the rotating shaft, and the third driving member fixes the rotating shaft in the clamping groove by driving the two clamping members.

[0012] Further, the first clamping assembly includes: a fourth driving member; a fixed clamp, arranged close to the fixed seat, the fixed clamp having a first connecting section and a second connecting section connected to each other, the first connecting section is located above the second connecting section, the cross-sectional area of ​​the first connecting section is smaller than the cross-sectional area of ​​the second connecting section, and a step surface is provided between the first connecting section and the second connecting section, and the step surface is used to support the rocker arm; a mobile clamp, arranged close to the fixed clamp, the rocker arm is arranged between the mobile clamp and the fixed clamp, the fourth driving member is drivingly connected to the mobile clamp, and the mobile clamp cooperates with the first connecting section to clamp the rocker arm.

[0013] Furthermore, the second driving structure includes: a fifth driving member, which is drivingly connected to the substrate and located at one end of the substrate; and a second guiding structure, which is connected to the substrate and located at the other end of the substrate to guide the movement of the substrate.

[0014] According to another aspect of the present invention, an assembly system is provided, which includes a table, a dividing plate and the above-mentioned press-fitting device. The dividing plate is rotatably arranged on the table, a plurality of workstations are arranged on the dividing plate, and a fixing seat of the press-fitting device is arranged on the workstation.

[0015] According to the technical solution of the present invention, the first clamping assembly clamps the swing arm, the second clamping assembly clamps the rotating shaft, the first clamping assembly and the second clamping assembly cooperate to limit the position of the sealing ring relative to the pressing tool, so that the pressing tool is located directly above the sealing ring, the annular protrusion of the pressing tool abuts against the slot of the sealing ring, and as the second driving structure feeds downward, the abutting portion fits against the inner wall of the slot of the sealing ring, and the limiting portion abuts against the top of the outer ring of the sealing ring, thereby forming a downward feeding force on the sealing ring. When the bottom end of the sealing ring feeds to the upper end of the guide cylinder, the first driving structure drives the pressing tool to rotate, and the second driving structure drives the substrate to move downward synchronously, thereby forming a downward spiral feeding force on the sealing ring, ensuring that the outer ring of the sealing ring will not be flanging when the sealing ring is installed in the guide cylinder. With such a configuration, the precise cooperation of the first clamping assembly and the second clamping assembly ensures the stability of the swing arm and the rotating shaft during the assembly process, and further improves the position accuracy of the sealing ring when it is installed in the guide cylinder. The coordinated use of the limiting part and the abutting part can effectively prevent the sealing ring from flanging during the press-fitting process, protect the integrity and function of the sealing ring, reduce the defective rate during the assembly process, and improve the assembly quality and efficiency. The size of the annular protrusion is designed to be smaller than the size of the bottom of the sealing ring groove, but can fit tightly against the sealing ring. This design ensures that the sealing ring can smoothly enter the guide cylinder during the press-fitting process, and at the same time provides sufficient radial support to ensure that the sealing ring can be normally screwed into the guide cylinder. In addition, by using the first drive structure, the second drive structure, the first clamping assembly and the second clamping assembly, the degree of automation of the press-fitting device can be improved, and the work efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It shows a schematic diagram of the structure of an assembly system provided according to the second embodiment of the present invention;

[0018] Figure 2 Shows Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 It shows a schematic structural diagram of a press-fit assembly provided according to the first embodiment of the present invention;

[0020] Figure 4A schematic structural diagram showing another perspective of a press-fit assembly provided according to the first embodiment of the present invention;

[0021] Figure 5 It shows a schematic structural diagram of a pressing tool provided according to the first embodiment of the present invention;

[0022] Figure 6 A cross-sectional view of a pressing tool provided according to Embodiment 1 of the present invention is shown;

[0023] Figure 7 It shows a schematic structural diagram of a fixing fixture provided according to the first embodiment of the present invention;

[0024] Figure 8 It shows a schematic structural diagram of the matching of the fixing seat and the first clamping assembly provided in the first embodiment of the present invention;

[0025] Fig. 9 It shows a schematic structural diagram of a second clamping assembly provided according to the first embodiment of the present invention;

[0026] Fig.10 It shows a schematic structural diagram of a sealing ring pressed by a press tool according to the first embodiment of the present invention;

[0027] Fig.11 Shows Fig.10 A partial enlarged view of point B in the middle;

[0028] Fig.12 Shows Fig.10 A partial enlarged view of point C in the middle.

[0029] The above drawings include the following reference numerals:

[0030] 10. Fixed seat;

[0031] 20. Press-fit components;

[0032] 21. base plate; 211. pulley;

[0033] 22. First driving structure; 221. First driving member;

[0034] 222. Gear transmission structure;

[0035] 2221, rack; 22211, slide;

[0036] 2222, gear; 2223, rotating shaft; 2224, bearing seat;

[0037] 23. Second driving structure;

[0038] 231. fifth driving member; 232. second guide structure;

[0039] 24. Pressing tool;

[0040] 241, first ring layer; 2411, annular protrusion; 2412, abutment portion; 2413, limiting portion;

[0041] 242, the second circle;

[0042] 30. A first clamping assembly;

[0043] 31. Fourth driving member;

[0044] 32. Fixing fixture; 321. First connecting section; 322. Second connecting section; 323. Step surface;

[0045] 33. Mobile fixture;

[0046] 40. A second clamping assembly;

[0047] 41. second driving member; 42. connecting plate; 43. third driving member; 44. clamping member; 441. clamping groove;

[0048] 1. Diaphragm box;

[0049] 2. body; 201. mounting hole; 202. guide cylinder;

[0050] 3. swing rod; 301. connecting tube; 4. rotating shaft; 5. sealing ring;

[0051] 100, table top; 200, dividing plate. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] like Figures 3 to 12As shown, the first embodiment of the present application provides a press-fitting device, the membrane box 1 includes a body 2, a swing rod 3 and a rotating shaft 4, the swing rod 3 is fixed in the mounting hole 201 of the body 2, the rotating shaft 4 is sequentially inserted into the guide cylinder 202 of the body 2 and the connecting cylinder 301 of the swing rod 3, and a sealing ring 5 is sleeved on the rotating shaft 4. The press-fitting device includes a fixing seat 10, a press-fitting assembly 20, a first clamping assembly 30 and a second clamping assembly 40. The fixing seat 10 is used to fix the body 2. The press assembly 20 comprises a substrate 21, a first driving structure 22 and a second driving structure 23. The substrate 21 is located above the fixed seat 10. The first driving structure 22 is drivingly connected to the substrate 21 to drive the substrate 21 to move in a vertical direction. A press 24 and a second driving structure 23 are provided on the substrate 21. The second driving structure 23 is drivingly connected to the press 24 to drive the press 24 to rotate along the axial direction of the rotating shaft 4. The press 24 comprises a first ring layer 241, which is sleeved on the outer side of the rotating shaft 4. The bottom of the first ring layer 241 comprises an annular protrusion 2411, which is tightly connected to the rotating shaft 4. The first ring layer 241 is provided with an abutting portion 2412 and a limiting portion 2413 on the outer wall of the first ring layer 241. The limiting portion 2413 is located on the side of the abutting portion 2412 away from the annular protrusion 2411. The outer diameter of the limiting portion 2413 is larger than the outer diameter of the abutting portion 2412. The abutting portion 2412 is used to abut against the inner wall of the sealing ring 5, and the abutting portion 2412 is adapted to the structure of the inner wall of the sealing ring 5. The limiting portion 2413 is used to abut against the top of the sealing ring 5. The first clamping assembly 30 is used to clamp the swing rod 3 to limit the position of the swing rod 3 relative to the body 2. The second clamping assembly 40 is used to clamp the rotating shaft 4 to limit the position of the rotating shaft 4 relative to the body 2. The first clamping assembly 30 and the second clamping assembly 40 cooperate to limit the position of the sealing ring 5 relative to the pressing tool 24. Among them, in the present application, the groove of the sealing ring 5 is a V-shaped groove, and the cross-sectional area of ​​the groove gradually increases in the direction away from the bottom of the groove. The abutment portion 2412 abuts against the outer ring of the groove, and the limiting portion 2413 abuts against the top of the outer ring of the groove.

[0054] By applying the technical solution of the present application, the first clamping assembly 30 clamps the swing rod 3, the second clamping assembly 40 clamps the rotating shaft 4, the first clamping assembly 30 and the second clamping assembly 40 cooperate to limit the position of the sealing ring 5 relative to the pressing tool 24, so that the pressing tool 24 is located directly above the sealing ring 5, the annular protrusion 2411 of the pressing tool 24 abuts against the slot of the sealing ring 5, and as the second driving structure 23 feeds downward, the abutting portion 2412 fits against the inner wall of the slot of the sealing ring 5, and the limiting portion 2413 abuts against the top of the outer ring of the sealing ring 5, forming a downward feeding force on the sealing ring 5. When the bottom end of the sealing ring 5 feeds to the upper end of the guide cylinder 202, the first driving structure 22 drives the pressing tool 24 to rotate, and the second driving structure 23 drives the substrate 21 to move downward synchronously, thereby forming a downward spiral feeding force on the sealing ring 5, ensuring that the outer ring of the sealing ring 5 will not be flanging when the sealing ring 5 is installed into the guide cylinder 202. With such arrangement, the precise cooperation of the first clamping assembly 30 and the second clamping assembly 40 ensures the stability of the swing rod 3 and the rotating shaft 4 during the assembly process, and further improves the position accuracy of the sealing ring 5 when it is installed in the guide cylinder 202. The cooperation of the limiting portion 2413 and the abutting portion 2412 can effectively prevent the sealing ring 5 from flanging during the press-fitting process, protect the integrity and function of the sealing ring 5, reduce the defective rate during the assembly process, and improve the assembly quality and efficiency. The size of the annular protrusion 2411 is designed to be smaller than the size of the bottom of the groove of the sealing ring 5, but can be close to the sealing ring 5. This design ensures that the sealing ring 5 can smoothly enter the guide cylinder 202 during the press-fitting process, and at the same time provides sufficient radial support to ensure that the sealing ring 5 can be normally screwed into the guide cylinder 202. In addition, by using the first driving structure 22, the second driving structure 23, the first clamping assembly 30 and the second clamping assembly 40, the automation degree of the press-fitting device can be improved, and the work efficiency can be improved.

[0055] Among them, Fig.12 As shown, the outer diameter dimension β of the sealing ring 5 is set between 9.1 mm and 10.1 mm, and the diameter α of the guide cylinder 202 is set between 9.98 mm and 10.02 mm. The outer diameter dimension β of the sealing ring 5 is larger than the diameter α of the guide cylinder 202. If it is an ordinary pressing tool, it is very easy to cause the outer ring of the sealing ring 5 to be flanging during the pressing process. However, the technical solution of the present application can effectively avoid the flanging problem.

[0056] like Figure 5 and Figure 6As shown, the press 24 also has a second ring layer 242, which is arranged around the outer periphery of the first ring layer 241. The first ring layer 241 and the second ring layer 242 are respectively located inside and outside the guide cylinder 202 to limit the position of the guide cylinder 202. In this way, during the process of screwing the sealing ring 5, the second ring layer 242 of the press 24 cooperates with the outer wall of the guide cylinder 202 to form a coaxial positioning, further ensuring the stability of the screwed-in sealing ring 5 and further preventing the sealing ring 5 from flanging.

[0057] like Fig.10 and Fig.11 As shown, the ratio between the radial dimension d of the annular protrusion 2411 and the radial dimension e of the bottom of the slot is set between 0.2 and 0.4. In this way, when the ratio between d and e is less than 0.2, the pressure exerted by the annular protrusion 2411 on the sealing ring 5 is too large, which can easily cause damage to the sealing ring 5; when the ratio between d and e is greater than 0.4, the annular protrusion 2411 can easily be squeezed with the outer ring of the sealing ring 5 when entering the slot, causing the sealing ring 5 to be flanging. Therefore, the ratio between the radial dimension d of the annular protrusion 2411 and the radial dimension e of the bottom of the slot is set between 0.2 and 0.4, which can avoid damage to the sealing ring 5 and the problem of flanging of the sealing ring 5.

[0058] Optionally, the ratio between d and e may be 0.2, 0.3 or 0.4. In the present application, the ratio between d and e is 0.3.

[0059] like Figure 3 As shown, the second driving structure 23 includes a first driving member 221 and a gear transmission structure 222. One end of the first driving member 221 is fixed on the substrate 21. The other end of the first driving member 221 is drivingly connected to the gear transmission structure 222, and the gear transmission structure 222 is connected to the press 24. With such a configuration, the gear transmission structure 222 can provide high-precision rotational motion, ensuring that the press 24 can rotate at a stable and accurate speed, and the spinning assembly of the sealing ring 5 is more accurate, avoiding flanging or damage of the sealing ring 5 caused by unstable rotation. In addition, the gear 2222 transmission has a high transmission efficiency, which can ensure that the power output by the first driving member 221 is effectively and quickly transmitted to the press 24, thereby improving the power transmission efficiency and the pressing speed of the pressing process.

[0060] In this application, the first driving member 221 is a round cylinder.

[0061] Specifically, the gear transmission structure 222 includes a rack 2221, a gear 2222 and a bearing seat 2224. The first driving member 221 is drivingly connected to the rack 2221, and the first driving member 221 drives the rack 2221 to move along the extension direction of the substrate 21. The gear 2222 is meshed with the rack 2221, and the gear 2222 is sleeved on one end of the rotating shaft 2223. The bearing seat 2224 is fixed on the substrate 21, and the other end of the rotating shaft 2223 is arranged in the bearing seat 2224, and the end of the press 24 away from the annular protrusion 2411 is located in the bearing seat 2224. In this way, the meshing mechanism of the rack 2221 and the gear 2222 can convert linear motion into precise rotational motion. This transmission method ensures the accuracy of the rotational feeding of the press 24, so that the sealing ring 5 can be accurately and non-destructively loaded into the guide cylinder 202, avoiding position deviation and damage to the sealing ring 5 during assembly. Furthermore, through the combination of the rack 2221, the gear 2222 and the bearing seat 2224, the driving and rotation control mechanism of the press 24 is simplified, unnecessary complex components in the device are reduced, and the maintenance cost and failure rate of the equipment are reduced.

[0062] Among them, in the present application, two rotating shafts 4 and two rocker arms 3 are provided on the main body 2, two presses 24 are provided on the base plate 21, the gear transmission structure 222 includes two gears 2222 and two bearing seats 2224, the two bearing seats 2224 are arranged in a one-to-one correspondence with the two gears 2222, and the two gears 2222 are arranged in a one-to-one correspondence with the two presses 24.

[0063] Furthermore, in the present application, the press-fitting device includes two first clamping assemblies 30 , the two first clamping assemblies 30 are arranged in one-to-one correspondence with the two rocker arms 3 , and the second clamping assembly 40 can clamp the two rotating shafts 4 at the same time.

[0064] Specifically, when the bottom end of the sealing ring 5 is fed to the upper end of the guide cylinder 202, the first driving member 221 pushes the rack 2221 forward, and the gear 2222 rotates to drive the rotating shaft 4 and the press 24 to rotate, and the second driving structure 23 is fed synchronously, thereby forming a downward spiral feeding force on the sealing ring 5. After the sealing ring 5 is installed in the specified position inside the guide cylinder 202, the first driving member 221 is retracted, the gear 2222 is reversed, and the press 24 is reversed, and the second driving structure 23 is slowly raised synchronously, so that the sealing ring 5 is separated from the press 24, and the press 24 rises and exits the guide cylinder 202. Since the radial dimension of the annular protrusion 2411 is smaller than the radial dimension of the bottom of the slot, the sealing ring 5 will not be brought out during the reversal process.

[0065] like Figure 4As shown, there is a first guide structure between the base plate 21 and the rack 2221 to guide the movement of the rack 2221. In this way, the first guide structure ensures the linearity and stability of the movement of the rack 2221, reduces the deviation and shaking during the movement, thereby improving the movement accuracy of the press 24 and providing more precise control over the spinning assembly of the sealing ring 5.

[0066] Specifically, a pulley 211 is provided on the base plate 21, and the pulley 211 is located on the side of the rack 2221 away from the gear 2222, and a slide groove 22211 is provided on the side of the rack 2221 away from the gear 2222, and the pulley 211 is located in the slide groove 22211, and the slide groove 22211 cooperates with the pulley 211 to form a first guide structure. In this way, the pulley 211 and the slide groove 22211 can ensure the smooth movement of the rack 2221 in the linear direction, reduce the vibration and deviation of the rack 2221 during the movement, and improve the linearity and stability of the movement of the press 24. In addition, the pulley 211 rolls in the slide groove 22211, which can significantly reduce the friction resistance during the movement compared to the sliding friction, which helps to improve the driving efficiency, reduce the energy consumption of the driving unit, and also reduce the wear caused by friction, thereby extending the service life of the device.

[0067] like Fig. 9 As shown, the second clamping assembly 40 includes a second driving member 41, a connecting plate 42, a third driving member 43 and two clamping members 44. The second driving member 41 is drivingly connected to the connecting plate 42. The third driving member 43 is arranged on the connecting plate 42. The third driving member 43 is drivingly connected to the two clamping members 44, and the third driving member 43 is used to drive the two clamping members 44 to move closer to or farther from each other. A clamping groove 441 is provided between the two clamping members 44, and the structure of the clamping groove 441 is adapted to the structure of the rotating shaft 4. The third driving member 43 fixes the rotating shaft 4 in the clamping groove 441 by driving the two clamping members 44. In this arrangement, through the driving connection between the second driving member 41 and the connecting plate 42, and the precise control of the two clamping members 44 by the third driving member 43, high-precision clamping and positioning of the rotating shaft 4 can be achieved. This design can ensure the stability of the rotating shaft 4 during the press-fitting process, and avoid assembly errors caused by inaccurate position of the rotating shaft 4. The automated design of the second clamping assembly 40 can work in conjunction with the press-fit assembly 20 and the first clamping assembly 30 to achieve precise clamping and releasing on the automated assembly line, thereby reducing manual intervention and improving production efficiency and automation.

[0068] Among them, in the present application, openings are provided on both clamping members 44 , the two openings are arranged opposite to each other, and the two openings cooperate to form a clamping groove 441 , and there are two clamping grooves 441 between the two clamping members 44 , and the two clamping grooves 441 are arranged one-to-one with the two rotating shafts 4 .

[0069] The second driving component 41 is a single-axis robot, and the third driving component 43 is a gripper cylinder.

[0070] like Figure 7 and Figure 8 As shown, the first clamping assembly 30 includes a fourth driving member 31, a fixed fixture 32 and a movable fixture 33. The fixed fixture 32 is arranged near the fixed seat 10, and has a first connecting section 321 and a second connecting section 322 connected to each other. The first connecting section 321 is located above the second connecting section 322, and the cross-sectional area of ​​the first connecting section 321 is smaller than the cross-sectional area of ​​the second connecting section 322. There is a step surface 323 between the first connecting section 321 and the second connecting section 322, and the step surface 323 is used to support the swing rod 3. The movable fixture 33 is arranged near the fixed fixture 32, and the swing rod 3 is arranged between the movable fixture 33 and the fixed fixture 32. The fourth driving member 31 is drivingly connected to the movable fixture 33, and the movable fixture 33 cooperates with the first connecting section 321 to clamp the swing rod 3. In this way, the fixed clamp 32 and the movable clamp 33 are used together to accurately position and clamp the swing rod 3, ensuring the stability and position accuracy of the swing rod 3 during the assembly process, and avoiding assembly failure caused by swinging or displacement. In addition, the step surface 323 realizes the limitation of the body 2 in the vertical direction, further limiting the position of the swing rod 3.

[0071] In this application, the fourth driving member 31 is a cylinder.

[0072] like Figure 3 As shown, the second driving structure 23 includes a fifth driving member 231 and a second guiding structure 232. The fifth driving member 231 is drivingly connected to the substrate 21, and the fifth driving member 231 is located at one end of the substrate 21. The second guiding structure 232 is connected to the substrate 21, and the second guiding structure 232 is located at the other end of the substrate 21 to guide the movement of the substrate 21. In this way, the second guiding structure 232 ensures that the substrate 21 moves smoothly and accurately in a straight line direction. Combined with the driving force of the fifth driving member 231, the feed depth and position of the press 24 can be accurately controlled, thereby improving the accuracy of the installation process of the sealing ring 5. In addition, the efficient power output of the fifth driving member 231, combined with the stable guidance of the second guiding structure 232, can realize fast and continuous press-fitting operations, thereby improving the production speed of the gas meter and reducing the production time of the unit product.

[0073] Among them, in the present application, the fifth driving member 231 is a single-axis robot.

[0074] Specifically, the second guide structure 232 includes a slide rail and a slide seat. The slide rail extends in a vertical direction. The slide seat is slidably disposed on the slide rail. The base plate 21 is fixedly connected to the slide seat.

[0075] like Figure 1 and Figure 2As shown, the second embodiment of the present application provides an assembly system, which includes a table 100, a dividing plate 200 and the press-fitting device provided above, the dividing plate 200 is rotatably arranged on the table 100, and a plurality of workstations are arranged on the dividing plate 200, and a fixing seat 10 of the press-fitting device is arranged on the workstation. With such an arrangement, the use of the dividing plate 200 allows the assembly system to perform automated continuous production. As the dividing plate 200 rotates, multiple workstations can perform assembly operations in sequence, and the product or component on each workstation automatically moves to the next workstation after completing the current process, without the need for manual intervention, which greatly improves production efficiency and continuity.

[0076] In order to better understand the present application, the working steps of the assembly system are as follows, and for the convenience of description, the stations of the indexing plate 200 are defined as the first station, the second station, and so on according to the processing order:

[0077] 1. The swing rod 3 is installed into the mounting hole 201 of the body 2 at the first station;

[0078] 2. The fourth driving member 31 drives the movable fixture 33 to move, and the movable fixture 33 cooperates with the fixed furniture to clamp the swing rod 3;

[0079] 3. The indexing plate 200 sends the body 2 with the swing rod 3 to the second station and installs the rotating shaft 4. The bottom of the rotating shaft 4 is inserted into the connecting tube 301;

[0080] 4. The indexing plate 200 moves the body 2 into the third station again, and the sealing ring 5 is inserted into the rotating shaft 4;

[0081] 5. The indexing plate 200 sends the body 2 to the fourth station, at which time the sealing ring 5 is located directly below the pressing tool 24;

[0082] 6. The second driving member 41 drives the connecting plate 42 to move down to the specified position, the third driving member 43 drives the clamping member 44 to perform secondary precision positioning on the rotating shaft 4, and the synchronous fifth driving member 231 drives the base plate 21 to feed downward to the specified position. At this time, the annular protrusion 2411 of the pressing tool 24 just above the rotating shaft 4 just enters the groove of the sealing ring 5;

[0083] 7. As the fifth driving member 231 feeds downward, the abutting portion 2412 fits against the inner wall of the slot of the sealing ring 5, and the limiting portion 2413 abuts against the top of the outer ring of the sealing ring 5, thereby forming a downward feeding force on the sealing ring 5;

[0084] 8. When the bottom end of the sealing ring 5 is fed to the upper end of the guide cylinder 202, the first driving member 221 pushes the rack 2221 forward, and the gear 2222 rotates to drive the rotating shaft 2223 and the pressing tool 24 to rotate, and the fifth driving member 231 is fed synchronously, thereby forming a downward spiral feeding force on the sealing ring 5, and the synchronous abutting portion 2412 is in contact with the inner wall of the groove of the sealing ring 5, and the limiting portion 2413 is in contact with the top of the outer ring of the sealing ring 5;

[0085] 9. After the sealing ring 5 is installed into the specified position inside the guide cylinder 202, the first driving member 221 retreats, the gear 2222 reverses, driving the pressing tool 24 to reverse, and the synchronous fifth driving member 231 slowly rises, so that the sealing ring 5 is separated from the pressing tool 24, and the pressing tool 24 rises and exits the guide cylinder 202, completing the installation of the sealing ring 5 into the guide cylinder 202.

[0086] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0088] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0089] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0090] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A press-fitting device, wherein the membrane box (1) comprises a body (2), a rocker (3) and a rotating shaft (4), wherein the rocker (3) is fixed in a mounting hole (201) of the body (2), and the rotating shaft (4) is sequentially inserted into a guide cylinder (202) of the body (2) and a connecting cylinder (301) of the rocker (3), and a sealing ring (5) is sleeved on the rotating shaft (4), characterized in that: The press-fitting device comprises: A fixing seat (10) for fixing the body (2); A press-fitting assembly (20), the press-fitting assembly (20) comprising a base plate (21), a first driving structure (22) and a second driving structure (23), the base plate (21) being located above the fixed seat (10), the first driving structure (22) being drivingly connected to the base plate (21) so as to drive the base plate (21) to move in a vertical direction, a press (24) and the second driving structure (23) being provided on the base plate (21), the second driving structure (23) being drivingly connected to the press (24) so ​​as to drive the press (24) to rotate along the axial direction of the rotating shaft (4), the press (24) comprising a first ring layer (241), the first ring layer (241) being sleeved on the outer side of the rotating shaft (4), the bottom of the first ring layer (241) comprising an annular protrusion ( 2411), the annular protrusion (2411) abuts against the bottom of the groove of the sealing ring (5), the radial size of the annular protrusion (2411) is smaller than the radial size of the bottom of the groove, the outer wall of the first ring layer (241) is provided with an abutting portion (2412) and a limiting portion (2413), the limiting portion (2413) is located on the side of the abutting portion (2412) away from the annular protrusion (2411), the outer diameter of the limiting portion (2413) is larger than the outer diameter of the abutting portion (2412), the abutting portion (2412) is used to abut against the inner wall of the sealing ring (5), and the abutting portion (2412) is adapted to the structure of the inner wall of the sealing ring (5), and the limiting portion (2413) is used to abut against the top of the sealing ring (5); A first clamping assembly (30), the first clamping assembly (30) being used to clamp the swing rod (3) so as to limit the position of the swing rod (3) relative to the body (2); A second clamping assembly (40), wherein the second clamping assembly (40) is used to clamp the rotating shaft (4) to limit the position of the rotating shaft (4) relative to the body (2), and the first clamping assembly (30) and the second clamping assembly (40) cooperate to limit the position of the sealing ring (5) relative to the pressing tool (24).

2. The press-fitting device according to claim 1, characterized in that: The pressing tool (24) further comprises a second ring layer (242), the second ring layer (242) being arranged around the outer periphery of the first ring layer (241), the first ring layer (241) and the second ring layer (242) being respectively located inside and outside the guide cylinder (202) to limit the position of the guide cylinder (202).

3. The press-fitting device according to claim 1, characterized in that: The ratio between the radial dimension of the annular protrusion (2411) and the radial dimension of the groove bottom is set between 0.2 and 0.

4.

4. The press-fitting device according to claim 1, characterized in that: The second driving structure (23) comprises: A first driving member (221), one end of the first driving member (221) being fixed on the base plate (21); A gear transmission structure (222), wherein the other end of the first driving member (221) is drivingly connected to the gear transmission structure (222), and the gear transmission structure (222) is connected to the pressing tool (24).

5. The press-fitting device according to claim 4, characterized in that: The gear transmission structure (222) comprises: a rack (2221), the first driving member (221) being drivingly connected to the rack (2221), the first driving member (221) being used to drive the rack (2221) to move along an extension direction of the substrate (21); A gear (2222) meshing with the rack (2221), wherein the gear (2222) is sleeved on one end of the rotating shaft (2223); The bearing seat (2224) is fixed on the base plate (21), the other end of the rotating shaft (2223) is arranged in the bearing seat (2224), and the end of the pressing tool (24) away from the annular protrusion (2411) is located in the bearing seat (2224).

6. The press-fitting device according to claim 5, characterized in that: A first guiding structure is provided between the base plate (21) and the rack (2221) to guide the movement of the rack (2221).

7. The press-fitting device according to claim 6, characterized in that: A pulley (211) is provided on the base plate (21), and the pulley (211) is located on the side of the rack (2221) away from the gear (2222), and a slide groove (22211) is provided on the side of the rack (2221) away from the gear (2222), and the pulley (211) is located in the slide groove (22211), and the slide groove (22211) cooperates with the pulley (211) to form the first guide structure.

8. The press-fitting device according to claim 1, characterized in that: The second clamping assembly (40) comprises: A second driving member (41); A connecting plate (42), the second driving member (41) being drivingly connected to the connecting plate (42); A third driving member (43) is arranged on the connecting plate (42); Two clamping members (44), the third driving member (43) is drivingly connected to the two clamping members (44), the third driving member (43) is used to drive the two clamping members (44) to move closer to or farther away from each other, a clamping groove (441) is provided between the two clamping members (44), the structure of the clamping groove (441) is adapted to the structure of the rotating shaft (4), and the third driving member (43) fixes the rotating shaft (4) in the clamping groove (441) by driving the two clamping members (44).

9. The press-fitting device according to claim 1, characterized in that: The first clamping assembly (30) comprises: A fourth driving member (31); a fixing fixture (32) disposed near the fixing seat (10), the fixing fixture (32) comprising a first connecting section (321) and a second connecting section (322) connected to each other, the first connecting section (321) being located above the second connecting section (322), the cross-sectional area of ​​the first connecting section (321) being smaller than the cross-sectional area of ​​the second connecting section (322), a step surface (323) being provided between the first connecting section (321) and the second connecting section (322), the step surface (323) being used to support the swing rod (3); The movable clamp (33) is arranged close to the fixed clamp (32), the rocker arm (3) is arranged between the movable clamp (33) and the fixed clamp (32), the fourth driving member (31) is drivingly connected to the movable clamp (33), and the movable clamp (33) cooperates with the first connecting section (321) to clamp the rocker arm (3).

10. The press-fitting device according to claim 1, characterized in that: The second driving structure (23) comprises: A fifth driving member (231) is drivingly connected to the base plate (21), and the fifth driving member (231) is located at one end of the base plate (21); A second guiding structure (232) is connected to the substrate (21); the second guiding structure (232) is located at the other end of the substrate (21) to guide the movement of the substrate (21).

11. An assembly system, characterized in that: The assembly system comprises a table (100), a dividing plate (200) and a press-fitting device as described in any one of claims 1 to 10, wherein the dividing plate (200) is rotatably arranged on the table (100), a plurality of workstations are arranged on the dividing plate (200), and a fixing seat (10) of the press-fitting device is arranged on each of the workstations.

Images