Tool

Abstract

The tool is used for assembling an O-shaped ring and a valve bonnet and comprises a first press-fitting mechanism and a second press-fitting mechanism. A first press-fitting assembly of the first press-fitting mechanism comprises a positioning rod and a push rod, the positioning rod is sleeved with the push rod, the positioning rod comprises an extending end extending out of the push rod, the extending end is used for sleeving the O-shaped ring, and the end face, close to the extending end, of the push rod is an inclined face part; the push rod can move relative to the positioning rod so that the O-shaped ring arranged on the positioning rod in a sleeving mode can be pushed into the valve bonnet through the inclined face portion. A second press-fitting assembly of the second press-fitting mechanism comprises a press-fitting rod, the press-fitting rod can rotate and can move in the axis direction of the valve bonnet so as to stretch into the valve bonnet, and the diameter of the rod part, stretching into the valve bonnet, of the press-fitting rod is larger than the inner diameter of the O-shaped ring. The structural design of the tool is beneficial to improving the assembling effect and the assembling efficiency of the O-shaped ring and the valve bonnet.

Description

Technical Field

[0001] This application relates to the technical field of valve component assembly, and particularly to a tooling for assembling an O-ring and a valve cap. Background Art

[0002] Taking a charging valve as an example, an O-ring is press-fitted inside the valve cap of the charging valve to achieve sealing between the valve cap and the valve body. During assembly, it is necessary to first assemble the O-ring with the valve cap and then assemble the valve cap with other components such as the valve body of the charging valve. Among them, the O-ring is press-fitted with an interference fit with the valve cap, that is, the outer diameter of the O-ring is larger than the inner diameter of the valve cap.

[0003] In the related art, the assembly of the O-ring and the valve cap is carried out manually. The operator first puts the O-ring into the port of the valve cap and then uses a press-fitting mandrel to press the O-ring into the bottom of the valve cap. Generally, it is necessary to press twice continuously with the press-fitting mandrel to make the O-ring flat and press-fitted in place. After all the valve caps and O-rings are assembled, visual inspection is carried out to check whether there is any situation of missing installation of the valve cap, over-installation of the O-ring or the O-ring not being installed in place.

[0004] In the above method of manually press-fitting the O-ring with a press-fitting mandrel, the O-ring is prone to phenomena such as flanging, wrinkling or convex corners during the press-fitting process, and it is also prone to the situation of incomplete press-fitting, resulting in a high defective rate of the product. At the same time, the manual assembly efficiency is low. Summary of the Invention

[0005] The purpose of this application is to provide a tooling for assembling an O-ring and a valve cap. The structural design of this tooling is beneficial to improving the assembly effect and assembly efficiency of the O-ring and the valve cap.

[0006] To solve the above technical problems, this application provides a tooling for assembling an O-ring and a valve cap. The tooling includes a first press-fitting mechanism and a second press-fitting mechanism;

[0007] The first press-fitting mechanism includes a first press-fitting component. The first press-fitting component includes a positioning rod and a push rod. The push rod is sleeved outside the positioning rod. The positioning rod includes an extending end extending outside the push rod. The extending end is used for sleeving the O-ring. The end face of the push rod close to the extending end is an inclined face. The push rod can move relative to the positioning rod to push the O-ring sleeved on the positioning rod into the valve cap through the inclined face;

[0008] The second press-fitting mechanism includes a second press-fitting component. The second press-fitting component includes a press-fitting rod. The press-fitting rod can rotate and can move along the axial direction of the valve cap to extend into the valve cap. The diameter of the rod part of the press-fitting rod extending into the valve cap is larger than the inner diameter of the O-ring.

[0009] In one achievable manner, the protruding end of the positioning rod includes a large diameter section and a small diameter section, the large diameter section and the small diameter section are arranged along the direction of pushing the O-ring, the large diameter section can be interference fit with the O-ring, the radial dimension of the small diameter section is smaller than the inner diameter of the O-ring, and the push rod is sleeved on the large diameter section.

[0010] In one achievable manner, the first press-fitting assembly further includes a first mounting frame and a first driving component, the positioning rod is fixedly connected to one side of the first mounting frame, the first driving component is mounted on the first mounting frame, and the first driving component is used to drive the push rod to move relative to the positioning rod along the axial direction of the positioning rod.

[0011] In one achievable manner, the telescopic portion of the first driving component is fixedly connected to the push rod via a transition component, and a guide structure is provided between the transition component and the first mounting frame, and the guide structure is used to guide the movement of the push rod.

[0012] In one achievable manner, the guide structure includes a guide rod, the guide rod is slidably inserted into the first mounting frame, the guide rod is fixedly connected to the transition component, and a linear bearing is provided between the guide rod and the first mounting frame.

[0013] In one achievable manner, the first press-fitting mechanism further includes a second driving component, and the second driving component is used to drive the first press-fitting assembly to move along the axial direction of the positioning rod to insert the positioning rod into the valve cap.

[0014] In one achievable manner, the first press-fitting mechanism further includes a first guide assembly, and the first guide assembly is used to guide the movement of the first press-fitting assembly.

[0015] In one achievable manner, the second press-fitting assembly further includes a second mounting frame and a third driving component, wherein the third driving component is mounted on the second mounting frame, and the third driving component is used to drive the press-fitting rod to rotate around its own axis.

[0016] In one achievable manner, the second press-fitting assembly further includes a guide member, the press-fitting rod rotatably passes through the guide member, and the guide member is fixedly connected to the second mounting frame.

[0017] In one achievable manner, the third driving component includes a driving source and a reduction transmission mechanism, and the driving source is drivingly connected to the press rod via the reduction transmission mechanism.

[0018] In one achievable manner, the second press-fitting mechanism further includes a fourth driving component, and the fourth driving component is used to drive the second press-fitting assembly to move along the axial direction of the press-fitting rod.

[0019] In one achievable manner, the second press-fitting assembly further includes a second guide assembly, and the second guide assembly is used to guide the movement of the second press-fitting assembly.

[0020] With the tooling of this embodiment, the first press-fitting assembly of the first press-fitting mechanism is first used to press the O-ring into the valve cap in an inclined posture. Due to the inclination of the O-ring, the press-fitting resistance between the O-ring and the valve cap 30 is greatly reduced, thereby reducing the occurrence of the phenomenon such as the breakage, damage or burr of the O-ring in this process; then, the rotating press-fitting rod 211 of the second press-fitting mechanism is extended into the valve cap to press the inclined O-ring flat. Under the action of the rotation and downward pressure of the press-fitting rod, the O-ring can be ensured to be pressed into place, and the O-ring can be prevented from being deformed due to the resistance of the interference fit when pressed in, and the undesirable phenomenon such as the convex corner or pop-up of the O-ring can be reduced. The tooling can improve the assembly effect of the valve cap and the O-ring and reduce the product defect rate. At the same time, the structural design of the tooling provides conditions for the automatic assembly of the valve cap and the O-ring, which can reduce manual operations and is conducive to improving the assembly efficiency of the valve cap and the O-ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a first pressing mechanism of a tooling in an embodiment provided in the present application;

[0022] Figure 2 for Figure 1 Side view of

[0023] Figure 3 for Figure 1 A schematic structural diagram of the first press-fit assembly;

[0024] Figure 4 for Figure 1 Side view of

[0025] Figure 5 It is a structural schematic diagram of a specific embodiment after the first press-fit assembly presses the O-ring into the valve cap;

[0026] Figure 6 for Figure 5 A partial enlarged view of the A part;

[0027] Figure 7 A schematic structural diagram of a second pressing mechanism of a tooling in an embodiment provided in the present application;

[0028] Figure 8 for Figure 7 Side view of

[0029] Figure 9 for Figure 7 A schematic structural diagram of the second press-fit assembly;

[0030] Figure 10 It is a schematic structural diagram after the second press-fitting component press-fits the O-ring flatly in the specific embodiment.

[0031] Explanation of the reference numerals in the drawings:

[0032] The first press-fitting mechanism 100, the first press-fitting component 110, the positioning rod 111, the large-diameter section 1111, the small-diameter section 1112, the transition section 1113, the push rod 112, the inclined surface part 1121, the first mounting bracket 113, the first driving component 114, the transition component 115, the guiding structure 116, the guiding rod 1161, the linear bearing 1162, the connecting piece 117, the second driving component 120, the first adapter 130, the first mounting seat 140, the first guiding component 150, the first slider 151, the first slide rail 152;

[0033] The second press-fitting mechanism 200, the second press-fitting component 210, the press-fitting rod 211, the circular rod part 2111, the second mounting bracket 212, the third driving component 213, the guiding piece 214, the coupling 215, the fixed connecting rod 216, the fourth driving component 220, the second adapter 230, the second mounting seat 240, the second guiding component 250, the second slider 251, the second slide rail 252;

[0034] The valve cap 30, the cap top wall part 31, the O-ring 40. Specific embodiments

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0036] In this article, terms such as "upper, lower, bottom" are established based on the positional relationship shown in the drawings. Depending on the different drawings, the corresponding positional relationship may also change accordingly. Therefore, it cannot be understood as an absolute limitation of the protection scope; moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0037] Please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 , Figure 1 It is a schematic structural diagram of the first press-fitting mechanism of the tooling in an embodiment provided by the present application; Figure 2 is Figure 1 side view; Figure 7 It is a schematic structural diagram of the second press-fitting mechanism of the tooling in an embodiment provided by the present application; Figure 8 is Figure 7 side view.

[0038] The tooling provided by this embodiment is used to assemble the O-ring 40 and the valve cap 30. The tooling includes a first pressing mechanism 100 and a second pressing mechanism 200.

[0039] As Figure 1 and Figure 2 shown, the first pressing mechanism 100 includes a first pressing assembly 110. The first pressing assembly 110 includes a positioning rod 111 and a push rod 112. The push rod 112 is sleeved outside the positioning rod 111. The positioning rod 111 includes an extending end extending outside the push rod 112, and this extending end is used to sleevingly hold the O-ring 40. The end face of the push rod 112 close to the extending end of the positioning rod 111 is an inclined face portion 1121. The push rod 112 can move relative to the positioning rod 111 to push the O-ring 40 sleeved on the positioning rod 111 into the valve cap 30 through its inclined face portion 1121.

[0040] Taking Figure 1 and Figure 2 shown orientation, during assembly, the valve cap 30 is located below the first pressing assembly 110. The lower end of the positioning rod 111 is the extending end extending outside the push rod 112. When the push rod 112 pushes the O-ring 40 into the valve cap 30, the push rod 112 moves downward relative to the positioning rod 111.

[0041] It should be noted that the inclined face portion 1121 of the push rod 112 can be understood as having an included angle with the extending direction of the push rod 112. The inclined face portion 1121 of the push rod 112 determines the inclined posture of the O-ring 40 pressed in the valve cap 30.

[0042] As Figure 7 and Figure 8 shown, the second pressing mechanism 200 includes a second pressing assembly 210. The second pressing assembly 210 includes a pressing rod 211. The pressing rod 211 can rotate and can move along the axial direction of the valve cap 30 to extend into the interior of the valve cap 30. The diameter of the rod portion of the pressing rod 211 extending into the interior of the valve cap 30 is larger than the inner diameter of the O-ring 40.

[0043] Taking Figure 7 and Figure 8 shown orientation, during assembly, the valve cap 30 is located below the second pressing assembly 210, and the pressing rod 211 moves downward to extend into the interior of the valve cap 30.

[0044] When assembling the valve cap 30 and the O-ring 40 using the above tooling, first use the first pressing assembly 110 of the first pressing mechanism 100 to press the O-ring 40 into the valve cap 30 in an inclined posture, and then use the second pressing assembly 210 of the second pressing mechanism 200 to press the O-ring 40 flat in the valve cap 30 and make it fit with the top wall portion of the valve cap 30.

[0045] Please refer toFigures 3 to 6 , Figure 3 is Figure 1 a schematic structural view of the first press-fitting assembly in Figure 4 is Figure 1 a side view of Figure 5 a schematic structural view of the first press-fitting assembly after pressing an O-ring into the valve cap in a specific embodiment; Figure 6 is Figure 5 a partial enlarged view of part A in

[0046] In the illustrated assembly orientation, the valve cap 30 is located below the first press-fitting assembly 110. In order to press the O-ring 40 into the valve cap 30, the valve cap 30 is placed with its opening facing upward. In this placement posture, the cap top wall portion 31 of the valve cap 30 is at the bottom; the axial directions of the positioning rod 111 and the push rod 112 of the first press-fitting assembly 110 are in the vertical direction.

[0047] When operating with the first press-fitting assembly 110, a positioning rod 111 can first be used to pick up an O-ring 40. The O-ring 40 is in a tight fit with the positioning rod 111, which can be understood as the O-ring 40 being press-fitted over the positioning rod 111, so that the O-ring 40 can be in a posture where its center line extends in the vertical direction; thereafter, the first press-fitting assembly 110 is moved downward together, so that the lower end of the positioning rod 111 extends into the valve cap 30 and abuts against the cap top wall portion 31 of the valve cap 30 (marked in Figure 6 ) to achieve relative positioning between the valve cap 30 and the positioning rod 111. At this time, the O-ring 40 is outside the valve cap 30. That is to say, when the O-ring 40 is fixedly sleeved on the positioning rod 111, the distance between the O-ring 40 and the bottom end of the positioning rod 111 facing the valve cap 30 is greater than the depth of the valve cap 30.

[0048] Thereafter, the push rod 112 sleeved on the positioning rod 111 is moved in the direction of the valve cap 30. That is to say, the push rod 112 is pushed downward so that the push rod 112 moves relative to the positioning rod 111 in the direction of the valve cap 30. The inclined surface portion 1121 of the push rod 112 is used to push the O-ring 40 sleeved on the positioning rod 111 into the valve cap 30. As shown in Figure 5 and Figure 6 , since the bottom end surface of the push rod 112 is the inclined surface portion 1121, after the push rod 112 pushes the O-ring 40 into the valve cap 30, the O-ring 40 is in an inclined posture in the valve cap 30.

[0049] Finally, the positioning rod 111 and the push rod 112 are removed from the valve cap 30 together. The operation of the first press-fitting assembly 110 is completed, and then the second press-fitting assembly 210 is used for press-fitting.

[0050] Please refer to Figure 9 and Figure 10 , Figure 9 is Figure 7A schematic structural diagram of the second press-fit assembly; Figure 10 It is a schematic diagram of the structure after the second press-fitting assembly in a specific embodiment press-fits the O-ring flatly.

[0051] In the assembly orientation shown in the figure, the valve bonnet 30 with the O-ring 40 placed in an inclined posture is located below the second press-fit assembly 210, and the valve bonnet 30 is still in a posture with the opening facing upward.

[0052] When the second press-fitting assembly 210 is operated, the press-fitting rod 211 is in a rotating state, and in the rotating state, it extends into the valve bonnet 30 along the axial direction of the valve bonnet 30, that is, the rotating press-fitting rod 211 is moved downward to extend into the inside of the valve bonnet 30. Since the diameter of the rod portion of the press-fitting rod 211 extending into the valve bonnet 30 is larger than the inner diameter of the O-ring 40, the press-fitting rod 211 can flatten the O-ring 40 in an inclined posture in the valve bonnet 30 during the process of rotating and moving downward, and make the O-ring 40 and the bonnet top wall 31 of the valve bonnet 30 fit tightly, as shown in FIG. Figure 10 As shown, the O-ring 40 and the valve bonnet 30 are assembled, and finally the press-fitting rod 211 is moved out of the valve bonnet 30 .

[0053] In the above-mentioned assembly process, the tooling of this embodiment is used to first press the O-ring 40 into the valve cap 30 in an inclined posture. Since the O-ring 40 is inclined, the press-fitting resistance between the O-ring 40 and the valve cap 30 is greatly reduced, thereby reducing the occurrence of the phenomenon such as the breakage, damage or burr of the O-ring 40 in this process; then, the rotating press-fitting rod 211 is extended into the valve cap 30 to press the inclined O-ring 40 flat. Under the action of the rotation and downward pressure of the press-fitting rod 211, the O-ring 40 can be ensured to be pressed into place, and the O-ring 40 can be prevented from being deformed due to the resistance of the interference fit when pressed in, and the undesirable phenomenon such as the convex corner or pop-up of the O-ring 40 can be reduced. It can be seen that the tooling can improve the assembly effect of the valve cap 30 and the O-ring 40 and reduce the product defect rate. At the same time, the structural design of the tooling provides conditions for the automatic assembly of the valve cap 30 and the O-ring 40, which can reduce manual operations and is conducive to improving the assembly efficiency of the valve cap 30 and the O-ring 40.

[0054] In a specific implementation, the circumference of the inclined surface 1121 of the push rod 112, that is, the connection portion between the inclined surface 1121 and the rod body of the push rod 112, is smoothly transitioned to avoid damage to the O-ring 40 due to sharp structures such as sharp corners when the inclined surface 1121 pushes the O-ring 40.

[0055] In a specific implementation, the degree of inclination of the inclined surface 1121, that is, the angle between the inclined surface 1121 and the axial direction of the push rod 112 can be determined according to actual needs, and should not be too large or too small. If the angle between the inclined surface 1121 and the axial direction of the push rod 112 is too large, the angle between the O-ring 40 and the top wall 31 (roughly parallel to the horizontal plane) of the valve bonnet 30 after being pressed into the valve bonnet 30 is small, which is not conducive to reducing the resistance of the O-ring 40 to be pressed in. If the angle between the inclined surface 1121 and the axial direction of the push rod 112 is too small, the angle between the O-ring 40 and the top wall 31 (roughly parallel to the horizontal plane) of the valve bonnet 30 after being pressed into the valve bonnet 30 is large, which is not conducive to the subsequent flattening operation. Exemplarily, the angle between the inclined surface 1121 and the axial direction of the push rod 112 can be set to 30° to 60°, and preferably 45°.

[0056] Please refer to Figures 1 to 6 In a specific implementation, the protruding end of the positioning rod 111 of the first press-fitting assembly 110 extending out of the push rod 112 includes a large diameter section 1111 and a small diameter section 1112, and the large diameter section 1111 and the small diameter section 1112 are arranged along the direction of pushing the O-ring 40, as shown in the figure, that is, the small diameter section 1112 is located below the large diameter section 1111, and when the positioning rod 111 is inserted into the valve bonnet 30 for positioning, the small diameter section 1112 of the positioning rod 111 abuts against the bonnet top wall 31 of the valve bonnet 30. Among them, the large diameter section 1111 can be interference-fitted with the O-ring 40, the radial dimension of the small diameter section 1112 is smaller than the inner diameter of the O-ring 40, and the push rod 112 can be sleeved on the large diameter section 1111.

[0057] After the positioning rod 111 is set as above, it is convenient to put on the O-ring 40. The O-ring 40 first passes through the small diameter section 1112 and then fits tightly with the large diameter section 1111. When the push rod 112 pushes the O-ring 40 into the valve cap 30 relative to the positioning rod 111, it is also convenient for the O-ring 40 to detach from the positioning rod 111, which can prevent the O-ring 40 from having undesirable phenomena such as flanging or wrinkling during this process.

[0058] In a specific implementation, the first press-fit assembly 110 further includes a first mounting frame 113 and a first driving component 114. The positioning rod 111 is fixedly connected to one side of the first mounting frame 113. The first driving component 114 is installed on the first mounting frame 113. The first driving component 114 is used to drive the push rod 112 to move relative to the positioning rod 111 along the axis direction of the positioning rod 111. Figures 1 to 6 In the shown position, the positioning rod 111 is fixedly connected to the lower part of the first mounting frame 113, and the push rod 112 which is sleeved on the positioning rod 111 is also located below the first mounting frame 113. The main body of the first driving component 114 is installed above the first mounting frame 113.

[0059] In the illustrated example, the first mounting bracket 113 is specifically in the form of a plate structure. In other implementation manners, the structure of the first mounting bracket 113 can be designed according to needs.

[0060] To simplify the structure and improve the reliability of the operation, the first driving component 114 can be selected as a driving member with telescopic movement (or linear movement), such as a cylinder, an electric cylinder, or a linear motor, etc.

[0061] To ensure the accuracy of the moving direction of the push rod 112 relative to the positioning rod 111, the telescopic part of the first driving component 114 can be fixedly connected to the push rod 112 through a transition component 15, and a guiding structure 116 is arranged between the transition component 15 and the first mounting bracket 113 to guide the movement of the push rod 112.

[0062] In a specific implementation, the guiding structure 116 includes a guiding rod 1161. The guiding rod 1161 is slidably inserted into the first mounting bracket 113. A linear bearing 1162 is arranged between the guiding rod 1161 and the first mounting bracket 113. The guiding rod 1161 is fixedly connected to the transition component 115. In the illustrated orientation, the lower end of the guiding rod 1161 passes through the first mounting bracket 113 and is fixedly connected to the transition component 115.

[0063] In this way, the telescopic part of the first driving component 114 can drive the transition component 15 to move up and down, thereby driving the push rod 112 fixedly connected to the transition component 15 to move up and down together. During this process, the guiding rod 1161 slides relative to the first mounting bracket 113 to guide the movement of the transition component 15.

[0064] To ensure the stability and reliability of the movement of the telescopic part of the first driving component 114 and the reliability of the sliding of the guiding rod 1161, the first press-fitting assembly 110 further includes a connecting piece 117. The connecting piece 117 is located above the first mounting bracket 113. The telescopic part of the first driving component 114 is connected to the connecting piece 117. The upper end of the guiding rod 116 is also fixedly connected to the connecting piece 117.

[0065] In the illustrated example, the guiding structure 116 includes two guiding rods 1161. The two guiding rods 1161 are arranged on both sides of the first driving component 114, so that the structure of the first press-fitting assembly 110 is relatively balanced, and the movement of related components is more stable and reliable. In other implementation manners, the guiding structure 116 can also include three or more guiding rods 1161, and the multiple guiding rods 116 can be symmetrically arranged around the first driving component 114.

[0066] The setting of the first driving component 114 and related structures enables the operation of the push rod 112 to push the O-ring 40 into the valve cap 30 to be automated, providing conditions for improving the assembly efficiency.

[0067] In a specific implementation, the first press-fitting mechanism 100 further includes a second driving component 120, which is used to drive the first press-fitting assembly 110 to move along the axial direction of the positioning rod 111 to insert the positioning rod 111 into the valve bonnet 30. In this way, when the valve bonnet 30 and the O-ring 40 are assembled, the positioning operation of inserting the positioning rod 111 into the valve bonnet 30 can also be automated.

[0068] In a specific implementation, the first press-fitting mechanism 100 further includes a first guide assembly 150 , and the first guide assembly 150 is used to guide the movement of the first press-fitting assembly 110 .

[0069] The second driving component 120 can be a driving component with telescopic motion (or linear motion), such as a cylinder, an electric cylinder or a linear motor.

[0070] like Figure 1 and Figure 2 As shown, in actual setting, the first press-fitting mechanism 100 also includes a first mounting seat 140 for mounting the second driving component 120 , and the telescopic portion of the second driving component 120 is connected to the first press-fitting assembly 110 to drive the first press-fitting assembly 110 to move along the axial direction of the positioning rod 111 .

[0071] Specifically, the telescopic portion of the second driving component 120 can be connected to the first mounting frame 113 of the first press-fit assembly 110, so that it is convenient to drive the positioning rod 111 and the push rod 112 to move together. In practical applications, according to the structural setting and connection requirements, the telescopic portion of the second driving component 120 can be connected to the first mounting frame 113 through the first adapter 130.

[0072] In a specific implementation, the first guide assembly 150 includes a first slider 151 and a first slide rail 152. In the figure, the first slider 151 is arranged on the first adapter 130, and the first slide rail 152 is arranged on the first mounting seat 140. The first slider 151 and the first slide rail 152 slide together in the axial direction of the positioning rod 111, so that the movement of the first press-fit assembly 110 can be guided.

[0073] It can be understood that on the basis that the telescopic portion of the second driving component 120 is directly connected to the first mounting frame 113 , the first sliding block 151 can be arranged on the first mounting frame 113 .

[0074] In other implementations, the first sliding block 151 may be disposed on the first mounting seat 140 , and the first sliding rail 152 may be disposed on the first adapter 130 .

[0075] In addition to the structure of the slider and the slide rail, the first guide assembly 150 may also be other guide structures, such as a guide structure composed of a lead screw and a nut, etc. Examples are not given one by one.

[0076] In practical applications, to ensure the reliability of the assembly of the O-ring 40 and the valve bonnet 30, when the first press-fitting mechanism 100 inserts the positioning rod 111 into the valve bonnet 30, the axis of the positioning rod 111 coincides with the axis of the valve bonnet 30. Specifically, the axis coordinate of the valve bonnet 30 can be determined by the tooling position of the positioning valve bonnet 30, thereby controlling the relative position between the first press-fitting mechanism 100 and the valve bonnet 30 to ensure that the axes of the positioning rod 111 and the valve bonnet 30 coincide.

[0077] Please refer to Figures 7 to 10 In a specific implementation, the second press-fitting assembly 210 also includes a second mounting frame 212 and a third driving component 213. The third driving component 213 is mounted on the second mounting frame 212. The third driving component 213 is used to drive the press-fitting rod 211 to rotate around its own axis to provide conditions for assembly automation.

[0078] In order to avoid shaking of the press-fitting rod 211 during rotation, the second press-fitting assembly 210 can also be provided with a guide member 214 to limit or guide the position of the press-fitting rod 211. Specifically, the press-fitting rod 211 can be rotatably passed through the guide member 214, and the guide member 214 can be fixedly connected to the second mounting frame 212 to make the overall structure of the second press-fitting assembly 210 more stable.

[0079] In the illustrated example, the second mounting frame 212 and the guide member 214 are both plate-shaped structures, arranged in parallel, and connected and fixed by a fixing rod 216.

[0080] In a specific implementation, the third driving component 213 may include a driving source with a rotational driving function, such as a motor. The third driving component 213 also includes a reduction transmission mechanism, and the driving source is connected to the press-fitting rod 211 through the reduction transmission mechanism to drive the press-fitting rod 211 to rotate at a lower speed, so as to avoid the press-fitting rod 211 rotating at an excessively high speed and causing damage to the O-ring 40 when the O-ring 40 is pressed.

[0081] In order to simplify the structure and reduce the space occupied by the tooling, the third driving component 213 can use a reduction motor with an integrated reducer.

[0082] Specifically, the output shaft of the reduction motor can be transmission-connected to the press rod 211 via a coupling 215 .

[0083] In the illustrated example, the lower end of the press-fitting rod 211, that is, the rod portion for extending into the valve cap 30 is a circular rod portion 2111, and the upper end of the press-fitting rod 211 is a main rod portion integrally formed with the circular rod portion 2111, and the radial dimension of the main rod portion is greater than the radial dimension of the circular rod portion 2111. Such a structural arrangement is conducive to improving the rotational stability of the press-fitting rod 211 and can reduce the probability of radial shaking of the press-fitting rod 211 during rotation.

[0084] The diameter of the circular rod portion 2111 is adapted to the inner diameter of the valve cap 30, and is set as large as possible on the basis of being able to be inserted into the valve cap 30 and rotate relative to the valve cap 30, so as to increase the contact area for press-fitting the O-ring 40, improve the effect of press-fitting the O-ring 40, and also reduce the damage to the O-ring 40.

[0085] In a specific implementation, the second press-fitting mechanism 200 further includes a fourth driving component 220. The fourth driving component 220 is used to drive the second press-fitting assembly 210 to move along the axial direction of the press-fitting rod 211, so as to insert the rotating press-fitting rod 211 into the valve cap 30, thereby performing an operation of flatly pressing the O-ring 40 inside the valve cap 30.

[0086] In a specific implementation, the rotating press-fitting rod 211 extends into the valve cap 30 in a uniform speed state. That is to say, the fourth driving component 220 controls the rotating press-fitting rod 211 to extend into the valve cap 30 at a relatively uniform speed, so as to provide a relatively stable and uniform downward pressure to the inclined O-ring 40, so as to avoid bad phenomena such as wrinkles occurring to the O-ring 40.

[0087] The fourth driving component 220 also has a driving member with telescopic movement (or linear movement), such as a cylinder, an electric cylinder or a linear motor, etc.

[0088] As Figure 7 and Figure 8 shown, in actual setting, the second press-fitting mechanism 200 further includes a second mounting seat 240 for mounting the fourth driving component 220. The telescopic part of the fourth driving component 220 is connected to the second press-fitting assembly 210 to drive the second press-fitting assembly 210 to move along the axial direction of the press-fitting rod 211.

[0089] Specifically, the telescopic part of the fourth driving component 220 can be connected to the guide member 214 of the second press-fitting assembly 210, or can be connected to the second mounting frame 212 of the second press-fitting assembly 210. In actual application, according to the structural setting and connection requirements, the telescopic part of the fourth driving component 220 can be connected to the guide member 214 or the second mounting frame 212 through a second adapter 230. The figure shows an example where the telescopic part of the fourth driving component 220 is connected to the guide member 214 through the second adapter 230.

[0090] In a specific implementation, the second press-fitting mechanism 200 further includes a second guiding assembly 250. The second guiding assembly 250 is used to guide the movement of the second press-fitting assembly 210.

[0091] Specifically, the second guiding component 250 includes a second slider 251 and a second slide rail 252. In the illustrated view, the second slider 251 is disposed on the second adapter 230, and the second slide rail 252 is disposed on the second mounting base 240. The second slider 251 and the second slide rail 252 are slidably engaged in the axial direction of the press-fitting rod 211. In this way, the movement of the second press-fitting component 210 can be guided.

[0092] It can be understood that on the basis that the telescopic part of the fourth driving component 220 is directly connected to the guiding member 214 or the second mounting bracket 212, the aforementioned second slider 251 can be disposed on the guiding member 21 or the second mounting bracket 212.

[0093] In other implementation manners, the second slider 251 can also be disposed on the second mounting base 240, and the second slide rail 252 can be disposed on the second adapter 230.

[0094] In addition to the structure of the slider and the slide rail, the second guiding component 250 can also be other guiding structures, such as a guiding structure in which a lead screw and a nut are engaged. No further examples will be given one by one.

[0095] In practical applications, to ensure the reliability and safety of the press-fitting of the O-ring 40, when the pressing rod 211 is inserted into the valve cap 30, the axis of the pressing rod 211 coincides with the axis of the valve cap 30. Specifically, the axis coordinates of the valve cap 30 can be determined by positioning the tooling position of the valve cap 30, so as to control the relative position between the second press-fitting mechanism 200 and the valve cap 30, so as to ensure that the axes of the pressing rod 211 and the valve cap 30 coincide.

[0096] In this article, specific examples are used to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A tooling for assembling an O-ring and a valve cap, characterized in that, The tooling includes a first press-fitting mechanism and a second press-fitting mechanism; The first press-fitting mechanism comprises a first press-fitting assembly, the first press-fitting assembly comprises a positioning rod and a push rod, the push rod is sleeved on the positioning rod, the positioning rod comprises an extended end extending out of the push rod, the extended end is used to sleeve the O-ring, the end surface of the push rod close to the extended end is an inclined surface, the push rod can move relative to the positioning rod, so as to push the O-ring sleeved on the positioning rod into the valve cap through the inclined surface; The second press-fitting mechanism includes a second press-fitting assembly, which includes a press-fitting rod. The press-fitting rod can rotate and move along the axial direction of the valve bonnet to extend into the interior of the valve bonnet. The diameter of the rod portion of the press-fitting rod extending into the interior of the valve bonnet is greater than the inner diameter of the O-ring.

2. The tooling according to claim 1, wherein The extended end of the positioning rod includes a large diameter section and a small diameter section, the large diameter section and the small diameter section are arranged along the direction of pushing the O-ring, the large diameter section can be interference fit with the O-ring, the radial dimension of the small diameter section is smaller than the inner diameter of the O-ring, and the push rod is sleeved on the large diameter section.

3. The tooling according to claim 1, characterized in that, The first press-fitting assembly also includes a first mounting frame and a first driving component. The positioning rod is fixedly connected to one side of the first mounting frame. The first driving component is installed on the first mounting frame. The first driving component is used to drive the push rod to move relative to the positioning rod along the axial direction of the positioning rod.

4. The tooling according to claim 3, characterized in that, The telescopic portion of the first driving component is fixedly connected to the push rod via a transition component. A guide structure is provided between the transition component and the first mounting frame, and the guide structure is used to guide the movement of the push rod.

5. The tooling according to claim 4, characterized in that, The guide structure comprises a guide rod, the guide rod is slidably inserted into the first mounting frame, the guide rod is fixedly connected to the transition component, and a linear bearing is arranged between the guide rod and the first mounting frame.

6. The tooling according to claim 1, characterized in that, The first press-fitting mechanism further includes a second driving component, and the second driving component is used to drive the first press-fitting assembly to move along the axial direction of the positioning rod to insert the positioning rod into the valve cap.

7. The tooling according to claim 6, characterized in that, The first press-fitting mechanism further includes a first guiding assembly, and the first guiding assembly is used to guide the movement of the first press-fitting assembly.

8. The tooling according to any one of claims 1-7, characterized in that, The second press-fitting assembly further comprises a second mounting frame and a third driving component. The third driving component is mounted on the second mounting frame and is used to drive the press-fitting rod to rotate around its own axis.

9. The tooling according to claim 8, characterized in that, The second press-fitting assembly further comprises a guide member, the press-fitting rod rotatably passes through the guide member, and the guide member is fixedly connected to the second mounting frame.

10. The tooling according to claim 8, characterized in that, The third driving component includes a driving source and a reduction transmission mechanism, and the driving source is drivingly connected to the press rod through the reduction transmission mechanism.

11. The tooling according to any one of claims 1-7, characterized in that, The second press-fitting mechanism further includes a fourth driving component, and the fourth driving component is used to drive the second press-fitting assembly to move along the axial direction of the press-fitting rod.

12. The tooling according to claim 11, wherein, The second press-fitting assembly further includes a second guide assembly, and the second guide assembly is used to guide the movement of the second press-fitting assembly.

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