Handheld sealing ring assembling device

Abstract

The invention relates to a handheld sealing ring assembling device, and belongs to the technical field of assembling tools, the handheld sealing ring assembling device comprises a base and a mandrel, the mandrel is used for containing a to-be-assembled sealing ring, the base is provided with a fixing seat used for fixing the mandrel, the mandrel comprises a main body part, a conical surface part and a cylindrical surface part, the to-be-assembled sealing ring sleeves the main body part, and the conical surface part sleeves the cylindrical surface part. A positioning hole for embedding a product part is coaxially formed in the end part, close to the cylindrical surface part, of the core shaft, a mounting groove in the product part embedded in the positioning hole is flush with the end surface, deviating from the conical surface part, of the cylindrical surface part, a material pushing mechanism is further arranged on the base, and the sealing ring slides towards the cylindrical surface part to be embedded into the mounting groove under the action of the material pushing mechanism. The tool has the advantages that the size is small, the tool is not limited by the large size and mass of assembled parts, operation is flexible and rapid, and it can be guaranteed that the assembled sealing ring has the good cleanliness.

Description

Technical Field

[0001] The present application relates to the technical field of assembly tooling, and in particular to a handheld assembly sealing ring device. Background Art

[0002] The existing technology for assembling sealing rings for shaft parts is still manual assembly or assembly using a fixed device, which is inconvenient for large parts. In addition, the sealing ring is in contact with the outside world and is easily contaminated by dust or fiber, which affects the sealing effect. Summary of the invention

[0003] In order to facilitate the installation of sealing rings on shaft product parts, the present application provides a handheld sealing ring assembly device.

[0004] The present application provides a handheld sealing ring assembly device that adopts the following technical solution:

[0005] A handheld sealing ring assembly device is used to install the sealing ring into the installation groove of a product part, including a base and a core shaft, the core shaft is used to receive the sealing ring to be assembled, the base is provided with a fixing seat for fixing the core shaft, the core shaft includes a main body, a conical surface part and a cylindrical surface part, the sealing ring to be assembled is sleeved on the main body part, the conical surface part is located between the main body part and the cylindrical surface part, the diameter of the cylindrical surface part is larger than the diameter of the main body part, and the diameter of the conical surface part decreases successively along the direction toward the main body part of the cylindrical surface part, and a positioning hole for product parts to be embedded is coaxially opened at the end of the core shaft close to the cylindrical surface part, and the installation groove on the product part embedded in the positioning hole is flush with the end face of the cylindrical surface part away from the conical surface part. A pushing mechanism is also provided on the base, and the sealing ring slides toward the cylindrical surface part under the action of the pushing mechanism to be embedded in the installation groove.

[0006] By adopting the above technical scheme, the sealing ring to be assembled is sleeved on the main body, and then the product parts are embedded in the positioning hole. The sealing ring can be pushed by the pushing mechanism to slide along the conical surface to the cylindrical surface first, gradually expand the sealing ring, and then slide the sealing ring along the cylindrical surface to separate from the core shaft, so that the sealing ring can shrink into the installation groove under the action of its own elasticity, and the assembly of the sealing ring is completed. The device is small in size, not restricted by the large size and mass of the assembled parts, and is flexible and fast in operation, which is convenient for assembling sealing rings on shaft parts.

[0007] Preferably, the push mechanism comprises a sliding sleeve coaxially arranged with the core shaft, the inner diameter of the sliding sleeve is larger than the outer diameter of the cylindrical portion, a plurality of push blocks are arranged at one end of the sliding sleeve close to the cylindrical portion, the plurality of push blocks are arranged in a circular array with the axis of the sliding sleeve as the center, and the push blocks slide along the radial direction of the sliding sleeve;

[0008] A guide plate is provided between two adjacent pusher blocks, the guide plate is connected to the sliding sleeve, a guide groove for the guide plate to slide is provided on the side wall of the pusher block, and the parts of the pusher block located on both sides of the guide groove are divided into a claw part and a step part;

[0009] The sliding sleeve is provided with a control ring for controlling the push block to slide toward the sliding sleeve. The control ring is elastic. A plurality of push blocks are connected by the control ring. The push block is provided with a control groove for the control ring to engage. Under the elastic action of the claw part, the claw part fits with the outer wall of the core shaft, and the step part fits with the outer wall of the sliding sleeve. The sealing ring to be assembled is located on the side of the claw part away from the guide groove. The base is provided with a push assembly for controlling the sliding of the sliding sleeve.

[0010] By adopting the above technical scheme, with the cooperation of the guide block and the guide groove, guidance and support are provided for the sliding of the push block, thereby improving the sliding stability of the push block. Through the setting of the control groove, the control ring is not easy to slide away from the push block, and multiple push blocks are connected by the control ring, which is convenient for the disassembly and assembly of the push block, thereby extending the service life of the device to a certain extent.

[0011] Preferably, the pusher assembly comprises an expansion sleeve coaxially arranged with the sliding sleeve, the sliding sleeve is located between the expansion sleeve and the core shaft, the base is provided with a sliding seat fixed with the expansion sleeve, the sliding seat is slidably arranged on the base, the expansion sleeve is located on a side of the guide plate close to the step portion, a compression elastic member is provided on the expansion sleeve, one end of the compression elastic member away from the expansion sleeve is connected to the sliding sleeve, and the sliding sleeve slides toward the expansion sleeve under the action of the compression elastic member;

[0012] When the expansion sleeve slides toward the column surface portion, the expansion sleeve first fits against the step portion, and the push block slides along the conical surface portion in a direction away from the sliding sleeve until the gap between the step portion and the sliding sleeve is larger than the thickness of the expansion sleeve. Then, under the action of the compression elastic member, the sliding sleeve slides until the expansion sleeve fits against the guide plate.

[0013] By adopting the above technical solution, the sliding of the sliding sleeve can be controlled by the sliding of the expansion sleeve, and under the action of the compression elastic member, the sliding sleeve can slide well following the sliding of the expansion sleeve.

[0014] Preferably, the base is provided with a limit sleeve for limiting the sliding length of the sliding sleeve, the base is provided with a limit seat for fixing the limit sleeve, and the base is provided with a pusher for pushing the sealing ring on the main body to move toward the column surface;

[0015] When the expansion sleeve slides in the direction away from the column surface part, the sliding sleeve slides synchronously with the expansion sleeve under the action of the compressed elastic member, and the pusher block can move to the step part and press against the outer wall of the expansion sleeve under the elastic action of the control ring. At this time, the gap between the claw part and the main body can accommodate the sealing ring. When the sliding sleeve slides and fits with the limit sleeve, the claw part is located between two adjacent sealing rings, and there is only one sealing ring between the claw part and the conical surface part. When the expansion sleeve continues to slide and separates from the step part, the pusher block can slide under the action of the control ring until the claw part is embedded between two adjacent sealing rings and the step part slides and presses against the sliding sleeve.

[0016] By adopting the above technical solution, the sliding length of the sliding sleeve is limited by the setting of the limit sleeve, so that the sliding of the expansion sleeve can be coordinated with the sliding of the expansion sleeve for loading, without manual loading, thereby improving the convenience of using the device.

[0017] Preferably, the limiting seat is located between the fixed seat and the sliding seat, a sheath for protecting the sealing ring is provided between the limiting seat and the fixed seat, a quick chuck is provided on the fixed seat, and the sheath and the core shaft are fixed to the fixed seat by the quick chuck.

[0018] By adopting the above technical solution and setting the sheath, the sealing ring is protected so that dust and impurities from the outside are not easily adsorbed on the sealing ring, thereby effectively ensuring the sealing performance of the sealing ring.

[0019] Preferably, the pusher member includes a pusher sleeve slidably arranged in the sleeve, a transition block is provided on the fixed seat, the transition block is fixed to the fixed seat by a quick chuck, the transition block is provided with an axially and radially penetrating transition through hole, the end of the core shaft away from the positioning hole is provided with an axially and radially penetrating pusher through hole, the transition through hole and the pusher through hole are both T-shaped, when the core shaft is fitted with the transition block, the transition through hole is axially connected with the pusher through hole, a sealing portion is provided between the sleeve and the core shaft quick chuck, and the pusher sleeve is located on the side of the radial opening of the pusher through hole away from the transition block.

[0020] By adopting the above technical solution, since a sealing portion is provided between the sleeve and the core shaft quick chuck, and the outer wall of the push sleeve fits with the inner wall of the sleeve, when gas is injected into the transition block through the transition through hole, the gas can enter the push through hole along the transition through hole, and then be discharged into the sleeve from the push through hole. Then, the push sleeve can slide in the direction away from the fixed seat under the action of the gas, so that the sealing ring can slide in the direction of the conical surface portion.

[0021] Preferably, it further comprises a handle, the base is fixed on the handle, and the handle is provided with a hand guard.

[0022] By adopting the above technical solution, with the cooperation of the handle and the hand guard, it is convenient for an operator to take the device and assemble the sealing ring into the installation groove of the product part.

[0023] Preferably, a linear guide rail for sliding the sliding seat is provided on the base, and the linear guide rail is arranged along the length direction of the core shaft. A control cylinder for controlling the sliding of the sliding seat is provided on the base, and a piston rod of the control cylinder is connected to the sliding seat.

[0024] By adopting the above technical solution and setting the linear guide rail, the stability and smoothness of the sliding seat on the base are improved.

[0025] Preferably, the handle is provided with a reversing valve, the reversing valve includes an air inlet, a cylinder air supply port and a pusher air supply port, the reversing valve is provided with a main air pipe connected to the air inlet, a cylinder connecting pipe connected to the cylinder air supply port and a pusher connecting pipe connected to the pusher air supply port;

[0026] The control cylinder comprises a cylinder air inlet and a cylinder air outlet, the control cylinder is provided with an air outlet pipe connected to the cylinder air outlet, and one end of the cylinder connecting pipe away from the reversing valve is connected to the control cylinder and connected to the cylinder air inlet;

[0027] The end of the air outlet pipe away from the control cylinder is connected to the transition block, the end of the push material connecting pipe away from the reversing valve is connected to the transition block, and the two radial openings of the transition through hole are respectively connected to the air outlet pipe and the push material connecting pipe.

[0028] By adopting the above technical solution, when the reversing valve is started, gas is injected into the reversing valve through the main air pipe, and part of the gas enters the cylinder air inlet hole through the cylinder connecting pipe, thereby starting the control cylinder; the remaining gas in the reversing valve enters the transition through hole through the push connecting pipe, and when the piston rod of the control cylinder retracts, the gas in the control cylinder can also enter the transition through hole through the air outlet pipe, so that the sealing ring away from the fixed seat can slide toward the conical surface part, thereby improving the reliability of loading by sliding of the push sleeve.

[0029] Preferably, the handle is also provided with a trigger for controlling the reversing valve, and the trigger is rotatably connected to the handle.

[0030] By adopting the above technical solution, in actual use, the operator only needs to pull the trigger to start the reversing valve, thereby assembling the sealing ring. The operation is simple and convenient for installing the sealing ring on the shaft product parts.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The sealing ring to be assembled is sleeved on the main body, and then the product parts are embedded in the positioning holes. The sealing ring can be pushed by the pushing mechanism to slide along the conical surface to the cylindrical surface first, gradually expand the sealing ring, and then slide the sealing ring along the cylindrical surface to separate from the core shaft, so that the sealing ring can shrink into the installation groove under its own elasticity, and the assembly of the sealing ring is completed. The device is small in size and is not restricted by the large size and mass of the assembled parts. It is flexible and fast in operation, and is convenient for assembling sealing rings on shaft parts;

[0033] 2. The sheath is provided to provide protection for the sealing ring, so that dust and impurities from the outside are not easily adsorbed on the sealing ring, ensuring that the assembled sealing ring has good cleanliness, thereby effectively ensuring the sealing performance of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the loading state structure of an embodiment of the present application.

[0035] Figure 2 It is a schematic diagram of the pushing state structure of an embodiment of the present application.

[0036] Figure 3 It is a schematic diagram of the structure of the core shaft in the embodiment of the present application.

[0037] Figure 4 It is a structural schematic diagram of product parts in the embodiment of the present application.

[0038] Figure 5 It is a schematic diagram of the structure of the sliding sleeve in the embodiment of the present application.

[0039] Figure 6 It is a schematic diagram of the structure of the expansion sleeve in the embodiment of the present application.

[0040] Figure 7 It is a schematic diagram of the structure of the pusher block in the embodiment of the present application.

[0041] Figure 8 It is a schematic structural diagram of the pusher block from another perspective in the embodiment of the present application.

[0042] Fig. 9 It is a schematic diagram of the structure of the limit sleeve in the embodiment of the present application.

[0043] Description of the accompanying drawings: 1, base; 2, linear guide; 3, sliding seat; 4, expansion sleeve; 41, limit part; 5, sliding sleeve; 51, guide plate; 6, compression spring; 7, limit retaining ring; 8, transition block; 81, transition through hole; 9, pusher block; 91, step part; 92, guide groove; 93, control groove; 94, claw part; 10, control ring; 11, limit seat; 12, limit sleeve; 13, core shaft; 131, positioning groove; 132, cone part; 133, column part; 134, Positioning hole; 135, slot; 136, push hole; 137, main body; 14, quick chuck; 15, control cylinder; 151, cylinder air inlet; 152, cylinder air outlet; 153, air outlet pipe; 16, sheath; 17, push sleeve; 18, handle; 19, reversing valve; 191, cylinder connecting pipe; 192, push connecting pipe; 20, trigger; 21, hand guard; 22, main air pipe; 23, sealing ring; 24, product parts; 241, installation groove; 25, fixing seat. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-9 This application is described in further detail.

[0045] The present application embodiment discloses a handheld sealing ring assembly device, referring to Figure 1 and Figure 2 , including a base 1, a handle 18 and a core shaft 13. The handle 18 is arranged in a T shape. The base 1 is fixed on the handle 18. The handle 18 is also integrally formed or equipped with a hand guard 21. With the cooperation of the handle 18 and the hand guard 21, it is convenient for an operator to take the device and assemble the sealing ring 23 into the installation groove 241 of the product part 24.

[0046] Reference Figure 1 and Figure 3 The base 1 is provided with a sliding seat 3, a limiting seat 11 and a fixed seat 25 in sequence. The fixed seat 25 and the limiting seat 11 are fixedly provided on the base 1. The sliding seat 3 is slidably provided on the base 1. The base 1 is provided with a linear guide rail 2 for sliding the sliding seat 3. The linear guide rail 2 is provided along the length direction of the core shaft 13. The provision of the linear guide rail 2 improves the stability and smoothness of the sliding of the sliding seat 3 on the base 1. The base 1 is provided with a control cylinder 15 for controlling the sliding of the sliding seat 3. In the embodiment of the present application, the control cylinder 15 is fixed to the limiting seat 11, and the piston rod of the control cylinder 15 is fixed to the sliding seat 3. Then, the sliding of the sliding seat 3 can be controlled by the control cylinder 15. The fixed seat 25 is fixedly equipped with a quick chuck 14. The core shaft 13 is provided with a slot 135 that cooperates with the quick chuck 14. The slot 135 is arranged in an annular shape. The parts on the quick chuck 14 cooperate with the slot 135 so that the core shaft 13 is fixed on the base 1.

[0047] Reference Figure 2 , Figure 3 and Figure 4 The core shaft 13 is used to receive the sealing ring 23 to be assembled. The core shaft 13 includes a main body 137, a conical surface 132 and a cylindrical surface 133. The sealing ring 23 to be assembled is sleeved on the main body 137. The conical surface 132 is located between the main body 137 and the cylindrical surface 133. The diameter of the cylindrical surface 133 is larger than the diameter of the main body 137. The diameter of the conical surface 132 decreases in sequence along the direction toward the cylindrical surface 133 and the main body 137. The end of the core shaft 13 away from the card slot 135 is coaxially provided with a positioning hole 134 for the product part 24 to be embedded. The base 1 is also provided with There is a pushing mechanism for pushing the sealing ring 23 located on the main body 137 to slide along the length direction of the core shaft 13, so that the installation groove 241 on the product part 24 embedded in the positioning hole 134 is flush with the end surface of the cylindrical surface part 133 away from the conical surface part 132. The sealing ring 23 can pass through the conical surface part 132 and the cylindrical surface part 133 in sequence under the action of the pushing mechanism. When the sealing ring 23 slides to be separated from the cylindrical surface part 133, the sealing ring 23 can shrink into the installation groove 241 of the product part 24 under the action of its own elasticity, thereby completing the installation of the sealing ring 23.

[0048] Reference Figure 1 , Figure 2 and Figure 5 The pushing mechanism includes a sliding sleeve 5 coaxially arranged with the core shaft 13. The inner diameter of the sliding sleeve 5 is larger than the outer diameter of the cylindrical portion 133. The sliding sleeve 5 can slide to the cylindrical portion 133 along the length direction of the core shaft 13. One end of the sliding sleeve 5 close to the cylindrical portion 133 is slidably connected to multiple pushing blocks 9. The pushing blocks 9 slide along the radial direction of the sliding sleeve 5. The number of pushing blocks 9 depends on the size of the sliding sleeve 5. In the embodiment of the present application, three pushing blocks 9 are selected, and the three pushing blocks 9 are arranged in a circular array with the axis of the sliding sleeve 5 as the center; a guide plate 51 is provided between two adjacent pushing blocks 9, and the guide plate 51 is fixed on the sliding sleeve 5. Guide grooves 92 for the sliding of the guide plates 51 are opened on the side walls on both sides of the pushing blocks 9. Under the cooperation of the guide blocks and the guide grooves 92, guidance and support are provided for the sliding of the pushing blocks 9, thereby improving the sliding stability of the pushing blocks 9.

[0049] Reference Figure 5 , Figure 7 and Figure 8, the parts of the pusher block 9 located on both sides of the guide groove 92 are divided into a claw portion 94 and a step portion 91, a control ring 10 for controlling the pusher block 9 to slide toward the sliding sleeve 5 is provided on the sliding sleeve 5, and the control ring 10 is elastic. The three pusher blocks 9 are connected by the control ring 10, and a control groove 93 for the control ring 10 to be engaged is opened on the pusher block 9, and the control groove 93 is communicated with the guide groove 92. Through the setting of the control groove 93, the control ring 10 is not easy to slide away from the pusher block 9, and the control ring 10 is easy to disassemble and assemble; under the elastic action of the claw portion 94, the claw portion 94 is fitted with the outer wall of the core shaft 13, and the step portion 91 is fitted with the outer wall of the sliding sleeve 5, so that the sealing ring 23 to be assembled is located on the side of the claw portion 94 away from the guide groove 92, then when the sliding sleeve 5 slides in the direction away from the fixed seat 25, the sealing ring 23 can be pushed by the claw portion 94 to slide synchronously along the length direction of the core shaft 13 to be separated from the core shaft 13.

[0050] Reference Figure 1 , Figure 2 and Figure 6 A pushing assembly for controlling the sliding movement of the sliding sleeve 5 is provided on the base 1. The pushing assembly includes an expansion sleeve 4 coaxially arranged with the sliding sleeve 5. The sliding sleeve 5 is located between the expansion sleeve 4 and the core shaft 13. The expansion sleeve 4 is fixed on the sliding seat 3. The expansion sleeve 4 is located on the side of the guide plate 51 close to the step portion 91. The side of the sliding sleeve 5 away from the guide plate 51 is threadedly connected to the limiting retaining ring 7, and the outer diameter of the limiting retaining ring 7 is larger than the inner diameter of the expansion sleeve 4. Under the cooperation of the limiting retaining ring 7 and the guide plate 51, the sliding sleeve 5 is not easy to slide and separate from the expansion sleeve 4; a compression elastic member is provided on the expansion sleeve 4. In the embodiment of the present application, the compression elastic member is a compression spring 6, and a limiting portion 41 cooperating with the limiting retaining ring 7 is coaxially provided on the expansion sleeve 4. The compression spring 6 is placed between the limiting portion 41 and the limiting retaining ring 7, so that one end of the compression spring 6 is tightly pressed against the limiting portion 41, and the other end of the compression spring 6 is tightly pressed against the limiting retaining ring 7. Under the action of the compression elastic member, the sliding sleeve 5 slides toward the expansion sleeve 4.

[0051] When the expansion sleeve 4 slides toward the cylindrical portion 133, the expansion sleeve 4 first fits against the step portion 91. During the sliding process of the expansion sleeve 4, when the pusher block 9 slides along the conical portion 132 in the direction away from the sliding sleeve 5 until the gap between the step portion 91 and the sliding sleeve 5 is greater than the thickness of the expansion sleeve 4, the sliding sleeve 5 slides under the action of the compression spring 6 until the expansion sleeve 4 fits against the guide plate 51, and then the sliding sleeve 5 can continue to slide through the sliding of the expansion sleeve 4.

[0052] Reference Figure 1 , Figure 2 and Fig. 9A limiting sleeve 12 for limiting the sliding length of the sliding sleeve 5 is fixedly connected to the limiting seat 11, and a pushing piece is provided on the base 1 for pushing the sealing ring 23 located on the main body 137 to slide toward the cylindrical surface 133, so that a positioning groove 131 for the sealing ring 23 to be embedded in the connection transition between the main body 137 of the core shaft 13 and the conical surface 132 is provided, and the sealing ring 23 closest to the conical surface 132 will be embedded in the positioning groove 131 and wait for loading.

[0053] When the expansion sleeve 4 slides toward the fixed seat 25, the sliding sleeve 5 can maintain a state of being in contact with the expansion sleeve 4 under the action of the compression spring 6. Under the cooperation of the control ring 10 and the conical surface part 132, the pusher block 9 slides toward the sliding sleeve 5 until the step part 91 is in contact with the outer wall of the expansion sleeve 4, and the gap between the claw part 94 and the main body 137 can accommodate the sealing ring 23; when the sliding sleeve 5 slides to be in contact with the limiting sleeve 12, the claw part 94 is located between two adjacent sealing rings 23, and there is only one sealing ring 23 between the claw part 94 and the conical surface part 132. When the expansion sleeve 4 continues to slide until it is separated from the step part 91, the pusher block 9 can slide under the action of the control ring 10 until the claw part 94 is embedded between two adjacent sealing rings 23, and the step part 91 slides to be tightly pressed against the sliding sleeve 5, thereby completing the loading of the sealing ring 23.

[0054] Reference Figure 1 and Figure 2 A sheath 16 for protecting the sealing ring 23 is provided between the limiting seat 11 and the fixing seat 25. The sheath 16 is fixed to the fixing seat 25 through the quick clamp 14. One end of the sheath 16 away from the fixing seat 25 is embedded in the limiting sleeve 12 and fixed to the limiting sleeve 12. Through the setting of the sheath 16, protection is provided for the sealing ring 23, so that external dust and impurities are not easily adsorbed on the sealing ring 23, and the sealing performance of the sealing ring 23 is effectively guaranteed.

[0055] Reference Figure 1The pushing member includes a pushing sleeve 17 arranged in the sleeve 16, the pushing sleeve 17 is sleeved on the main body 137, the outer wall of the pushing sleeve 17 is in contact with the inner wall of the sleeve 16, and the inner wall of the pushing sleeve 17 is in contact with the outer wall of the core shaft 13. The sliding of the pushing sleeve 17 can push the sealing ring 23 located on the main body 137 to slide. A transition block 8 is provided on the fixed seat 25, and the transition block 8 is fixed to the fixed seat 25 by a quick chuck 14. A transition through hole 81 is provided on the transition block 8, which is axially and radially connected. An end of the core shaft 13 away from the positioning hole 134 is provided with an axially and radially connected pushing through hole 136. The transition through hole 81 and the pushing through hole 136 are both T-shaped. When the core shaft 13 is fixed to the fixed seat 25 by the quick chuck 14, the core shaft 13 fits with the transition block 8. At this time, the transition through hole 81 is axially connected with the pushing through hole 136. The pushing sleeve 17 is located on the side of the radial opening of the pushing through hole 136 away from the transition block 8, and a sealing portion is provided between the sleeve 16 and the quick chuck 14 of the core shaft 13.

[0056] When gas is injected into the transition block 8 through the transition through hole 81, the gas can enter the pushing through hole 136 along the transition through hole 81, and then be discharged into the sleeve 16 from the pushing through hole 136. Since a sealing portion is provided between the sleeve 16 and the quick chuck 14 of the core shaft 13, and the outer wall of the pushing sleeve 17 is in contact with the inner wall of the sleeve 16, and the inner wall of the pushing sleeve 17 is in contact with the outer wall of the core shaft 13, the pushing sleeve 17 can slide in the direction away from the fixed seat 25 under the action of the gas, so that the sealing ring 23 away from the fixed seat 25 can slide to be embedded in the positioning groove 131.

[0057] Reference Figure 1 and Figure 2 A reversing valve 19 is provided on the handle 18, and the reversing valve 19 includes an air inlet, a cylinder air supply port and a pusher air supply port. The reversing valve 19 is fixedly provided with a main air pipe 22 communicated with the air inlet, a cylinder connecting pipe 191 communicated with the cylinder air supply port, and a pusher connecting pipe 192 communicated with the pusher air supply port. The control cylinder 15 includes a cylinder air inlet 151 and a cylinder air outlet 152. An air outlet pipe 153 communicated with the cylinder air outlet 152 is fixedly provided on the control cylinder 15. One end of the cylinder connecting pipe 191 away from the reversing valve 19 is connected to the control cylinder 15 and communicated with the cylinder air inlet 151, one end of the air outlet pipe 153 away from the control cylinder 15 is connected to the transition block 8, and one end of the pusher connecting pipe 192 away from the reversing valve 19 is connected to the transition block 8. The two radial openings of the transition through hole 81 are respectively communicated with the air outlet pipe 153 and the pusher connecting pipe 192.

[0058] When the reversing valve 19 is started, gas is injected into the reversing valve 19 through the main air pipe 22, and part of the gas enters the cylinder air inlet through the cylinder connecting pipe 191, thereby starting the control cylinder 15; the remaining gas in the reversing valve 19 enters the transition through hole 81 through the pushing connecting pipe 192, and the gas in the control cylinder 15 can also enter the transition through hole 81 through the outlet pipe 153, so that the sealing ring 23 away from the fixed seat 25 can remain in the state of being located in the positioning groove 131, thereby improving the reliability of loading by sliding of the pushing sleeve 17.

[0059] Reference Figure 1 and Figure 2 The handle 18 is also provided with a trigger 20 for controlling the reversing valve 19. The trigger 20 is rotatably connected to the handle 18. In actual use, the operator only needs to pull the trigger 20 to start the reversing valve 19, thereby assembling the sealing ring 23. The operation is simple and convenient for installing the sealing ring 23 on the shaft product part 24.

[0060] The implementation principle of the handheld sealing ring assembly device of the present application embodiment is as follows: before the actual operation, a proper amount of sealing rings 23 are pre-assembled on the mandrel 13, and then the mandrel 13 is inserted into the quick clamp 14, and the mandrel 13 is fixed on the base 1 under the cooperation of the quick clamp 14 and the clamping groove 135. Then the trigger 20 is pulled, the device is activated, the pusher block 9 is contracted to load the material, so that one of the sealing rings 23 is located on the side of the claw portion 94 away from the fixed seat 25.

[0061] Insert the head of the product part 24 into the positioning hole 134, and after axial positioning through the bottom plane of the positioning hole 134, the outer side surface of the installation groove 241 of the product part 24 is just flush with the end surface of the cylindrical surface 133 away from the conical surface 132. Pull the trigger 20, the air path is unblocked, and the piston rod of the control cylinder 15 drives the sliding seat 3 to slide in the direction away from the fixed seat 25. During the sliding process, the expansion sleeve 4 first fits with the step portion 91. When the pusher block 9 slides along the conical surface 132 in the direction away from the sliding sleeve 5 until the gap between the step portion 91 and the sliding sleeve 5 is greater than the thickness of the expansion sleeve 4, the sliding sleeve 5 slides under the action of the compression spring 6 until the expansion sleeve 4 fits with the guide plate 51, and then the sliding sleeve 5 can continue to slide through the sliding of the expansion sleeve 4 until the sealing ring 23 is separated from the core shaft 13 and shrinks in the installation groove 241 under its own elastic action, and the assembly of the sealing ring 23 is completed.

[0062] The control of the trigger 20 is released, the piston rod of the control cylinder 15 is controlled to retract, and the expansion sleeve 4 slides toward the fixed seat 25. The sliding sleeve 5 can maintain a state of being in contact with the expansion sleeve 4 under the action of the compression spring 6. The pusher block 9 first slides to the step portion 91 under the action of the control ring 10 and is in contact with the outer wall of the expansion sleeve 4. At this time, the gap between the claw portion 94 and the main body 137 can accommodate the sealing ring 23. When the sliding sleeve 5 slides to fit with the limit sleeve 12, the claw portion 94 is located between the two adjacent sealing rings 23, and the claw portion 94 is located on the side of the sealing ring 23 in the positioning groove 131 close to the fixed seat 25, and then the expansion sleeve 4 continues to slide to separate from the step portion 91. The pusher block 9 can slide to the claw portion 94 under the action of the control ring 10 and be embedded between the two adjacent sealing rings 23, and the step portion 91 slides to be tightly pressed against the sliding sleeve 5, thereby completing the loading of the sealing ring 23.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A handheld sealing ring assembly device for installing a sealing ring (23) into an installation groove (241) of a product part (24), characterized in that: The invention comprises a base (1) and a core shaft (13), wherein the core shaft (13) is used to receive a sealing ring (23) to be assembled, and the base (1) is provided with a fixing seat (25) for fixing the core shaft (13), and the core shaft (13) comprises a main body (137), a conical surface portion (132) and a cylindrical surface portion (133), and the sealing ring (23) to be assembled is sleeved on the main body (137), and the conical surface portion (132) is located between the main body (137) and the cylindrical surface portion (133), and the diameter of the cylindrical surface portion (133) is larger than the diameter of the main body (137). 2) decreases in diameter in a direction toward the main body (137) of the cylindrical portion (133); a positioning hole (134) for engaging a product part (24) is coaxially provided at the end of the core shaft (13) close to the cylindrical portion (133); a mounting groove (241) on the product part (24) embedded in the positioning hole (134) is flush with the end surface of the cylindrical portion (133) away from the conical portion (132); a pushing mechanism is also provided on the base (1); and the sealing ring (23) slides toward the cylindrical portion (133) under the action of the pushing mechanism to be embedded in the mounting groove (241).

2. The handheld sealing ring assembly device according to claim 1, characterized in that: The push mechanism comprises a sliding sleeve (5) coaxially arranged with the core shaft (13), the inner diameter of the sliding sleeve (5) is larger than the outer diameter of the cylindrical portion (133), a plurality of push blocks (9) are arranged at one end of the sliding sleeve (5) close to the cylindrical portion (133), the plurality of push blocks (9) are arranged in a circular array with the axis of the sliding sleeve (5) as the center, and the push blocks (9) slide along the radial direction of the sliding sleeve (5); A guide plate (51) is provided between two adjacent pusher blocks (9), the guide plate (51) is connected to the sliding sleeve (5), a guide groove (92) for the guide plate (51) to slide is provided on the side wall of the pusher block (9), and the part of the pusher block (9) located on both sides of the guide groove (92) is divided into a claw part (94) and a step part (91); The sliding sleeve (5) is provided with a control ring (10) for controlling the push block (9) to slide toward the sliding sleeve (5). The control ring (10) is elastic. A plurality of push blocks (9) are connected via the control ring (10). The push block (9) is provided with a control groove (93) for the control ring (10) to engage. Under the elastic action of the claw portion (94), the claw portion (94) fits with the outer wall of the core shaft (13), and the step portion (91) fits with the outer wall of the sliding sleeve (5). The sealing ring (23) to be assembled is located on the side of the claw portion (94) away from the guide groove (92). The base (1) is provided with a push assembly for controlling the sliding of the sliding sleeve (5).

3. The handheld sealing ring assembly device according to claim 2, characterized in that: The pusher assembly comprises an expansion sleeve (4) coaxially arranged with the sliding sleeve (5), the sliding sleeve (5) being located between the expansion sleeve (4) and the core shaft (13), the base (1) being provided with a sliding seat (3) fixed with the expansion sleeve (4), the sliding seat (3) being slidably arranged on the base (1), the expansion sleeve (4) being located on a side of the guide plate (51) close to the step portion (91), the expansion sleeve (4) being provided with a compression elastic member, the end of the compression elastic member away from the expansion sleeve (4) being connected to the sliding sleeve (5), and the sliding sleeve (5) slidingly moves toward the expansion sleeve (4) under the action of the compression elastic member; When the expansion sleeve (4) slides toward the cylindrical portion (133), the expansion sleeve (4) first fits against the step portion (91), and the push block (9) slides along the conical portion (132) in a direction away from the sliding sleeve (5) until the gap between the step portion (91) and the sliding sleeve (5) is larger than the thickness of the expansion sleeve (4). Then, under the action of the compression elastic member, the sliding sleeve (5) slides until the expansion sleeve (4) fits against the guide plate (51).

4. The handheld sealing ring assembly device according to claim 3, characterized in that: The base (1) is provided with a limiting sleeve (12) for limiting the sliding length of the sliding sleeve (5), the base (1) is provided with a limiting seat (11) for fixing the limiting sleeve (12), and the base (1) is provided with a pushing piece for pushing the sealing ring (23) located on the main body (137) to move toward the column surface (133); When the expansion sleeve (4) slides in a direction away from the cylindrical portion (133), the sliding sleeve (5) slides synchronously with the expansion sleeve (4) under the action of the compression elastic member, and the pusher block (9) can move to the step portion (91) and abut against the outer wall of the expansion sleeve (4) under the elastic action of the control ring (10). At this time, the gap between the claw portion (94) and the main body (137) can accommodate the sealing ring (23), and the sliding sleeve (5) slides to the limit sleeve (137). 12), the claw portion (94) is located between two adjacent sealing rings (23), and there is only one sealing ring (23) between the claw portion (94) and the conical surface portion (132). When the expansion sleeve (4) continues to slide until it is separated from the step portion (91), the pusher block (9) can slide under the action of the control ring (10) until the claw portion (94) is embedded between two adjacent sealing rings (23), and the step portion (91) slides until it is tightly pressed against the sliding sleeve (5).

5. The handheld sealing ring assembly device according to claim 4, characterized in that: The limiting seat (11) is located between the fixed seat (25) and the sliding seat (3); a sheath (16) for protecting the sealing ring (23) is provided between the limiting seat (11) and the fixed seat (25); a quick clamp (14) is provided on the fixed seat (25); the sheath (16) and the core shaft (13) are both fixed to the fixed seat (25) via the quick clamp (14).

6. The handheld sealing ring assembly device according to claim 5, characterized in that: The pusher member comprises a pusher sleeve (17) slidably arranged in the sleeve (16); a transition block (8) is arranged on the fixed seat (25); the transition block (8) is fixed to the fixed seat (25) by a quick chuck (14); a transition through hole (81) is arranged on the transition block (8) and is connected axially and radially; an end of the mandrel (13) away from the positioning hole (134) is provided with a pusher through hole (136) which is connected axially and radially; the transition through hole (81) and the pusher through hole (136) are both arranged in a T-shape; when the mandrel (13) and the transition block (8) are fitted together, the transition through hole (81) and the pusher through hole (136) are axially connected; a sealing portion is arranged between the sleeve (16) and the quick chuck (14) of the mandrel (13); and the pusher sleeve (17) is located on the side of the radial opening of the pusher through hole (136) away from the transition block (8).

7. The handheld sealing ring assembly device according to claim 6, characterized in that: It also comprises a handle (18), the base (1) is fixed on the handle (18), and the handle (18) is provided with a hand guard (21).

8. The handheld sealing ring assembly device according to claim 7, characterized in that: The base (1) is provided with a linear guide rail (2) for sliding the sliding seat (3), the linear guide rail (2) is arranged along the length direction of the core shaft (13), the base (1) is provided with a control cylinder (15) for controlling the sliding of the sliding seat (3), and the piston rod of the control cylinder (15) is connected to the sliding seat (3).

9. The handheld sealing ring assembly device according to claim 8, characterized in that: The handle (18) is provided with a reversing valve (19), the reversing valve (19) comprises an air inlet, a cylinder air supply port and a pusher air supply port, the reversing valve (19) is provided with a main air pipe (22) connected to the air inlet, a cylinder connecting pipe (191) connected to the cylinder air supply port and a pusher connecting pipe (192) connected to the pusher air supply port; The control cylinder (15) comprises a cylinder air inlet (151) and a cylinder air outlet (152); the control cylinder (15) is provided with an air outlet pipe (153) in communication with the cylinder air outlet (152); an end of the cylinder connecting pipe (191) away from the reversing valve (19) is connected to the control cylinder (15) and in communication with the cylinder air inlet (151); One end of the air outlet pipe (153) away from the control cylinder (15) is connected to the transition block (8), one end of the material pushing connecting pipe (192) away from the reversing valve (19) is connected to the transition block (8), and two radial openings of the transition through hole (81) are respectively connected to the air outlet pipe (153) and the material pushing connecting pipe (192).

10. The handheld sealing ring assembly device according to claim 9, characterized in that: The handle (18) is also provided with a trigger (20) for controlling the reversing valve (19), and the trigger (20) is rotatably connected to the handle (18).

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