Automatic assembling equipment for sealing ring in inner hole of pipe fitting

Abstract

The invention provides automatic assembling equipment for sealing rings in inner holes of pipe fittings. The automatic assembling equipment comprises a rack, a sealing ring supply mechanism and a sealing ring assembling mechanism, the sealing ring supply mechanism and the sealing ring assembling mechanism are both connected to the rack, the sealing ring supply mechanism is used for supplying sealing rings into the sealing ring assembling mechanism one by one, and the sealing ring assembling mechanism is used for assembling the sealing rings into sealing ring grooves in the inner sides of the ends of the pipe fittings. The sealing ring can be automatically assembled into the sealing ring groove located in the inner side of the end of the pipe fitting, the advantage that the sealing ring and the pipe fitting are convenient to assemble is achieved, the assembling efficiency of the sealing ring and the pipe fitting can be improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pipe inner hole sealing ring assembly devices, in particular to an automatic assembly device for pipe inner hole sealing rings. Background Art

[0002] At present, when connecting pipe fittings and pipes, more and more people use crimping to connect the two. When one end of the pipe is inserted into the end of the pipe fitting, and the crimping tool crimps the socket of the pipe fitting, the inner wall of the sealing ring located on the inner side of the end of the pipe fitting can be tightly sealed with the outer wall of the pipe, and the socket of the pipe fitting can clamp the pipe, that is, the fixation of the pipe fitting and the pipe is achieved and the circumferential sealing is achieved.

[0003] During the pipe production process, the sealing ring needs to be installed in the sealing ring groove located on the inner side of the pipe end. Currently, the process of installing the sealing ring in the sealing ring groove on the inner side of the pipe end is completed manually. Since the sealing ring groove is located on the inner side of the pipe end, the manual assembly of the sealing ring has the disadvantages of inconvenient assembly, low sealing ring installation efficiency and high labor cost. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic assembly device for the inner hole sealing ring of a pipe fitting, which can automatically assemble the sealing ring into the sealing ring groove located on the inner side of the end of the pipe fitting, has the advantages of convenient assembly of the sealing ring and the pipe fitting, and can improve the assembly efficiency of the sealing ring and the pipe fitting, and reduce labor costs.

[0005] The invention provides an automatic assembly device for sealing rings in inner holes of pipe fittings, comprising a frame, a sealing ring supplying mechanism and a sealing ring assembling mechanism; the sealing ring supplying mechanism and the sealing ring assembling mechanism are both connected to the frame, the sealing ring supplying mechanism is used for supplying sealing rings one by one to the sealing ring assembling mechanism, and the sealing ring assembling mechanism is used for assembling the sealing rings into the sealing ring grooves on the inner side of the pipe fitting end.

[0006] The present invention can automatically assemble the sealing ring into the sealing ring groove located on the inner side of the pipe end, has the advantages of convenient assembly of the sealing ring and the pipe, can improve the assembly efficiency of the sealing ring and the pipe, and reduce labor costs.

[0007] In a possible embodiment, the sealing ring assembly mechanism includes a bracket, a stopper sleeve, a support sleeve, a clamping assembly, an assembly rod assembly and a driving assembly; the bracket is fixed on the frame, the stopper sleeve is fixed to the front end of the bracket and a material trough is formed between the rear end of the stopper sleeve and the bracket for a single sealing ring to slide in from top to bottom, the discharge end of the sealing ring supply mechanism is fixed to the bracket and extends to the upper end of the material trough, the support sleeve is fixed to the front end of the stopper sleeve and is used for inserting the end of the pipe fitting; the driving assembly is connected to the rear side of the bracket, the rear end of the assembly rod assembly is transmission-connected to the driving assembly, the front end of the assembly rod assembly is movably arranged in the bracket, and the driving assembly is used to drive the front end of the assembly rod assembly to insert into the sealing ring located in the material trough; the clamping assembly is connected to the rear side of the bracket, the rear end of the assembly rod assembly is transmission-connected to the driving assembly, the front end of the assembly rod assembly is movably arranged in the bracket, and the driving assembly is used to drive the front end of the assembly rod assembly to insert into the sealing ring located in the material trough; the clamping assembly is connected to the The bottom of the front end of the bracket, the clamping end of the clamping assembly is movably inserted from bottom to top in the gap between the stop sleeve and the bracket and is used to clamp the lower edge of the sealing ring located in the material trough to the bottom of the front end of the assembly rod assembly; the driving assembly is also used to drive the assembly rod assembly so that the assembly rod assembly stretches the sealing ring located in the material trough, and enables the assembly rod assembly to assemble the stretched sealing ring into the sealing ring groove located on the inner side of the end of the pipe fitting; by adopting the above-mentioned sealing ring assembly mechanism, it can automatically assemble the sealing ring from the sealing ring supply mechanism into the sealing ring groove located on the inner side of the end of the pipe fitting, which can facilitate the assembly of the sealing ring and the pipe fitting, and can improve the assembly efficiency of the sealing ring and the pipe fitting, and reduce labor costs.

[0008] In a possible embodiment, the assembly rod assembly includes a first rod body and a second rod body; the second rod body is slidably connected to the bottom of the first rod body, and an embedding groove for engaging with the upper edge of the sealing ring is provided on the outer side wall of the front end of the first rod body, and a hook groove for cooperating and hooking with the lower edge of the sealing ring is provided at the bottom of the front end of the second rod body; the rear ends of the first rod body and the second rod body are both transmission-connected to the driving assembly, and the driving assembly is used to drive the first rod body and the second rod body to move forward and backward synchronously and to drive the second rod body to move forward and backward relative to the first rod body; after adopting this structure, when the sealing ring enters the material from top to bottom After the first rod is in the groove, the driving assembly can drive the first rod body and the second rod body to move forward synchronously. At this time, the front end of the assembly rod assembly composed of the first rod body and the second rod body can be inserted into the sealing ring located in the material groove; then, the pressing end of the pressing assembly can press the lower edge of the sealing ring into the hook groove, and then the driving assembly drives the second rod body to move backward relative to the first rod body. At this time, since the lower edge of the sealing ring is limited in the hook groove, during the process of the second rod body moving backward relative to the first rod body, the sealing ring can be stretched and the upper edge of the sealing ring can be embedded in the embedding groove on the front end of the first rod body (the reason for this is that Before the second rod body and the first rod body stretch the sealing ring, the lower edge of the sealing ring is pressed into the hook groove by the pressing assembly, so as to prevent the lower edge of the sealing ring from escaping from the hook groove before the second rod body and the first rod body start to stretch the sealing ring); then, the pressing assembly is reset, and the driving assembly drives the first rod body and the second rod body to move forward synchronously again. At this time, the front end of the assembly rod assembly composed of the first rod body and the second rod body can be inserted into the front end of the support sleeve, and at this time, the second rod body is in a position moved backward relative to the first rod body and maintains the stretching state of the sealing ring; then, the end of the pipe fitting is inserted into The support sleeve is placed in the support sleeve, and the end of the pipe fitting is sleeved on the front end of the assembly rod assembly. In this state, the upper edge of the sealing ring can be engaged with the upper edge of the sealing ring groove in the end of the pipe fitting; then, the driving assembly drives the second rod body to move forward relative to the first rod body. At this time, the stretched state of the sealing ring is gradually cancelled, and finally the lower edge of the sealing ring can reach the lower edge position of the sealing ring groove in the end of the pipe fitting. At this time, due to the rebound effect of the sealing ring, the sealing ring can automatically engage with the sealing ring groove located in the end of the pipe fitting; finally, the driving assembly drives the first rod body and the second rod body to move backward synchronously to reset.

[0009] In a possible embodiment, the rear side walls of both ends of the embedding groove form arc surfaces; by adopting this structure, when the second rod body moves backward relative to the first rod body to stretch the sealing ring, the edge of the sealing ring can abut against the arc surface, thereby preventing the sealing ring from being cut at the end of the embedding groove.

[0010] In a possible embodiment, a positioning hole is provided at the front end of the first rod body, and a positioning block is provided at the front end of the second rod body; when the second rod body moves forward relative to the first rod body, the positioning block is used to cooperate and plug into the positioning hole; by adopting this structure, after the second rod body moves forward relative to the first rod body, the positioning block can cooperate and plug into the positioning hole, that is, after the second rod body moves forward relative to the first rod body, and when the driving assembly drives the first rod body and the second rod body to move synchronously, the second rod body and the first rod body can be prevented from being misaligned.

[0011] In one possible embodiment, the clamping assembly includes a lifting cylinder and a pressing block; the lifting cylinder is vertically fixed to the bottom of the front side of the bracket, the lower end of the pressing block is fixed to the driving end of the lifting cylinder, and the upper end of the pressing block forms the clamping end of the clamping assembly; when the lifting cylinder drives the pressing block to move upward, the upper end of the pressing block is used to press the lower edge of the sealing ring located in the material trough into the hook groove; by adopting this clamping assembly, when the lifting cylinder drives the pressing block to move upward, the upper end of the pressing block can press the lower edge of the sealing ring located in the material trough into the hook groove, thereby preventing the lower edge of the sealing ring from detaching from the hook groove before the second rod body and the first rod body just start to stretch the sealing ring, and when the lifting cylinder drives the pressing block to move downward, the pressing block can move downward and reset.

[0012] In a possible embodiment, the driving assembly includes a sliding seat, a double-stroke cylinder and a push-pull cylinder; the sliding seat can be connected to the bracket in a sliding manner forward and backward, the rear end of the first rod body is fixed on the sliding seat, the double-stroke cylinder is fixed on the bracket and is used to drive the sliding seat to slide forward and backward, the sliding seat is fixed to the driving end of the double-stroke cylinder, the push-pull cylinder is fixed on the sliding seat and is used to drive the second rod body to slide forward and backward relative to the first rod body, and the rear end of the second rod body is fixed to the driving end of the push-pull cylinder; after adopting the driving assembly, when the double-stroke cylinder drives the sliding seat to slide forward and backward, the sliding seat can reliably drive the push-pull cylinder, the first rod body and the second rod body to move synchronously, that is, the synchronous movement of the first rod body and the second rod body is realized, and when the driving end of the push-pull cylinder drives the second rod body to move forward and backward, the forward and backward movement of the second rod body relative to the first rod body can be realized.

[0013] In a possible implementation, the sliding seat is connected to the bracket in a forward and backward sliding manner via a guide rail assembly; by adopting this structure, the sliding seat can be reliably connected to the bracket in a forward and backward sliding manner via the guide rail assembly.

[0014] In a possible embodiment, the sealing ring feeding mechanism includes a sealing ring vibrating loading tray, a sealing ring conveying track and a material blocking assembly; the sealing ring vibrating loading tray is fixed to the frame, the feeding end of the sealing ring conveying track is connected to the discharging end of the sealing ring vibrating loading tray, and the discharging end of the sealing ring conveying track is fixed to the bracket and extends to the upper end of the material trough; the material blocking assembly is connected to the bracket, and after the current sealing ring falls into the material trough from the discharging end of the sealing ring conveying track, the material blocking assembly is used to prevent the next sealing ring from falling into the material trough; by adopting this structure, the sealing ring vibrating loading tray can convey the sealing ring to the material trough via the sealing ring conveying track, and after the current sealing ring falls into the material trough from the discharging end of the sealing ring conveying track, the material blocking assembly can prevent the next sealing ring from falling into the material trough, so as to realize the feeding of the sealing rings one by one.

[0015] In a possible embodiment, the material blocking assembly includes a material blocking cylinder and a material blocking rod; the material blocking cylinder is fixed on the bracket, the rear end of the material blocking rod is fixed to the driving end of the material blocking cylinder, and the front end of the material blocking rod is movably arranged in the discharge end of the sealing ring conveying track; by adopting this material blocking assembly, after the previous sealing ring falls from the discharge end of the sealing ring conveying track into the material trough, the material blocking cylinder can push the material blocking rod to move forward, and at this time, the material blocking rod can be inserted into the next sealing ring to block the next sealing ring, that is, the sealing rings can be fed one by one; when the material blocking cylinder drives the material blocking rod to move backward, the material blocking assembly can release the blocking of the next sealing ring, that is, the next sealing ring can fall from the discharge end of the sealing ring conveying track into the material trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 The schematic diagram of the structure after the enlargement of A in the middle;

[0018] Figure 3 It is a second three-dimensional structural schematic diagram of the present invention;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the sealing ring assembly mechanism;

[0020] Figure 5 It is a three-dimensional structural schematic diagram when the sealing ring assembly mechanism is about to assemble the sealing ring into the end of the pipe fitting;

[0021] Figure 6 It is a cross-sectional structural schematic diagram of the sealing ring assembly mechanism;

[0022] Figure 7 for Figure 6 The schematic diagram of the structure after the enlargement of A in the middle;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure when the second rod body moves backward relative to the first rod body. DETAILED DESCRIPTION

[0024] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figure 1-8 As shown, an embodiment of the present application discloses an automatic assembly device for inner hole sealing rings of pipe fittings, including a frame 1, a sealing ring supplying mechanism and a sealing ring assembling mechanism; the sealing ring supplying mechanism and the sealing ring assembling mechanism are both connected to the frame 1, the sealing ring supplying mechanism is used to supply the sealing rings 2 one by one to the sealing ring assembling mechanism, and the sealing ring assembling mechanism is used to assemble the sealing ring 2 into the sealing ring groove 31 on the inner side of the end of the pipe fitting 3.

[0029] The sealing ring assembly mechanism includes a bracket 4, a stopper sleeve 5, a support sleeve 6, a clamping assembly 7, an assembly rod assembly 8 and a driving assembly 9; the bracket 4 is fixed on the frame 1, the stopper sleeve 5 is fixed to the front end of the bracket 4, and a material trough 10 for a single sealing ring 2 to slide in from top to bottom is formed between the rear end of the stopper sleeve 5 and the bracket 4, the discharge end of the sealing ring supply mechanism is fixed to the bracket 4 and extends to the upper end of the material trough 10, the support sleeve 6 is fixed to the front end of the stopper sleeve 5 and is used for the end of the pipe 3 to be inserted; the driving assembly 9 is connected to the rear side of the bracket 4, the rear end of the assembly rod assembly 8 is transmission-connected to the driving assembly 9, the front end of the assembly rod assembly 8 is movably arranged in the bracket 4, and the driving assembly 9 is used to drive the front end of the assembly rod assembly 8 to be inserted into the sealing ring 2 located in the material trough 10; the clamping assembly 7 is connected At the bottom of the front end of the bracket 4, the clamping end of the clamping assembly 7 is movably inserted from bottom to top in the gap between the stopper sleeve 5 and the bracket 4 and is used to clamp the lower edge of the sealing ring 2 located in the material trough 10 to the bottom of the front end of the assembly rod assembly 8; the driving assembly 9 is also used to drive the assembly rod assembly 8 so that the assembly rod assembly 8 stretches the sealing ring 2 located in the material trough 10, and enables the assembly rod assembly 8 to assemble the stretched sealing ring 2 into the sealing ring groove 31 located on the inner side of the end of the pipe fitting 3; by adopting the above-mentioned sealing ring assembly mechanism, it is possible to automatically assemble the sealing ring from the sealing ring supply mechanism into the sealing ring groove located on the inner side of the end of the pipe fitting, which can facilitate the assembly of the sealing ring and the pipe fitting, and can improve the assembly efficiency of the sealing ring and the pipe fitting, and reduce labor costs.

[0030] The assembly rod assembly 8 includes a first rod body 81 and a second rod body 82; the second rod body 82 is slidably connected to the bottom of the first rod body 81, and a groove 811 for engaging with the upper edge of the sealing ring 2 is provided on the outer wall of the front end of the first rod body 81, and a hook groove 821 for hooking with the lower edge of the sealing ring 2 is provided at the bottom of the front end of the second rod body 82; the rear ends of the first rod body 81 and the second rod body 82 are both connected to the driving assembly 9, and the driving assembly 9 is used to drive the first rod body 81 and the second rod body 82 to move forward and backward synchronously and to drive the second rod body 82 to move forward and backward relative to the first rod body 81; by adopting this After the sealing ring enters the material groove from top to bottom, the driving assembly can drive the first rod body and the second rod body to move forward synchronously. At this time, the front end of the assembly rod assembly composed of the first rod body and the second rod body can be inserted into the sealing ring located in the material groove; then, the pressing end of the pressing assembly can press the lower edge of the sealing ring into the hook groove, and then the driving assembly drives the second rod body to move backward relative to the first rod body. At this time, since the lower edge of the sealing ring is limited in the hook groove, during the process of the second rod body moving backward relative to the first rod body, the sealing ring can be stretched and the upper edge of the sealing ring can be embedded in the front end of the first rod body. The first and second rods are engaged in a series of operations, and the first and second rods are engaged in a series of operations, and the first and second rods are engaged in a series of operations. The end portion is inserted into the supporting sleeve, and the end portion of the pipe fitting is sleeved on the front end of the assembly rod assembly. In this state, the upper edge of the sealing ring can be engaged with the upper edge of the sealing ring groove in the end portion of the pipe fitting; then, the driving assembly drives the second rod body to move forward relative to the first rod body. At this time, the stretched state of the sealing ring is gradually cancelled, and finally the lower edge of the sealing ring can reach the lower edge position of the sealing ring groove in the end portion of the pipe fitting. At this time, due to the rebound effect of the sealing ring, the sealing ring can automatically engage with the sealing ring groove located in the end portion of the pipe fitting; finally, the driving assembly drives the first rod body and the second rod body to move backward synchronously to reset.

[0031] The rear side walls of both ends of the embedding groove 811 form arc surfaces 812; by adopting this structure, when the second rod body moves backward relative to the first rod body to stretch the sealing ring, the edge of the sealing ring can rest on the arc surface, thereby preventing the sealing ring from being cut at the end of the embedding groove.

[0032] A positioning hole 813 is provided at the front end of the first rod body 81, and a positioning block 822 is provided at the front end of the second rod body 82; when the second rod body 82 moves forward relative to the first rod body 81, the positioning block 822 is used to cooperate and plug with the positioning hole 813; by adopting this structure, after the second rod body moves forward relative to the first rod body, the positioning block can be cooperated and plugged with the positioning hole, that is, after the second rod body moves forward relative to the first rod body, and when the driving assembly drives the first rod body and the second rod body to move synchronously, the second rod body and the first rod body can be prevented from being misaligned.

[0033] The clamping assembly 7 includes a lifting cylinder 71 and a pressing block 72; the lifting cylinder 71 is vertically fixed to the bottom of the front side of the bracket 4, the lower end of the pressing block 72 is fixed to the driving end of the lifting cylinder 71, and the upper end of the pressing block 72 forms the clamping end of the clamping assembly 7; when the lifting cylinder 71 drives the pressing block 72 to move upward, the upper end of the pressing block 72 is used to press the lower edge of the sealing ring 2 located in the material trough 10 into the hook groove 821; by adopting this clamping assembly, when the lifting cylinder drives the pressing block to move upward, the upper end of the pressing block can press the lower edge of the sealing ring located in the material trough into the hook groove, thereby preventing the lower edge of the sealing ring from escaping from the hook groove before the second rod body and the first rod body just start to stretch the sealing ring, and when the lifting cylinder drives the pressing block to move downward, the pressing block can move downward and reset.

[0034] The driving assembly 9 includes a sliding seat 91, a double-stroke cylinder 92 and a push-pull cylinder 93; the sliding seat 91 can be connected to the bracket 4 in a sliding manner forward and backward, the rear end of the first rod body 81 is fixed on the sliding seat 91, the double-stroke cylinder 92 is fixed on the bracket 4 and is used to drive the sliding seat 91 to slide forward and backward, the sliding seat 91 is fixed to the driving end of the double-stroke cylinder 92, the push-pull cylinder 93 is fixed on the sliding seat 91 and is used to drive the second rod body 82 to slide forward and backward relative to the first rod body 81, and the rear end of the second rod body 82 is fixed to the driving end of the push-pull cylinder 93; after adopting the driving assembly, when the double-stroke cylinder drives the sliding seat to slide forward and backward, the sliding seat can reliably drive the push-pull cylinder, the first rod body and the second rod body to move synchronously, that is, the synchronous movement of the first rod body and the second rod body is realized, and when the driving end of the push-pull cylinder drives the second rod body to move forward and backward, the second rod body can be moved forward and backward relative to the first rod body.

[0035] The sliding seat 91 is connected to the bracket 4 in a slidable manner forward and backward through the guide rail assembly 94. After adopting this structure, the sliding seat can be reliably connected to the bracket in a slidable manner forward and backward through the guide rail assembly.

[0036] The sealing ring feeding mechanism includes a sealing ring vibrating loading tray 20, a sealing ring conveying track 30 and a material blocking assembly; the sealing ring vibrating loading tray 20 is fixed to the frame 1, the feeding end of the sealing ring conveying track 30 is connected to the discharging end of the sealing ring vibrating loading tray 20, and the discharging end of the sealing ring conveying track 30 is fixed to the bracket 4 and extends to the upper end of the material trough 10; the material blocking assembly is connected to the bracket 4, and when the current sealing ring 2 falls into the material trough 10 from the discharging end of the sealing ring conveying track 30, the material blocking assembly is used to block the next sealing ring 2 from falling into the material trough 10; by adopting this structure, the sealing ring vibrating loading tray can convey the sealing ring to the material trough via the sealing ring conveying track, and when the current sealing ring falls into the material trough from the discharging end of the sealing ring conveying track, the material blocking assembly can block the next sealing ring from falling into the material trough, so as to realize the feeding of the sealing rings one by one.

[0037] The material blocking assembly includes a material blocking cylinder 401 and a material blocking rod 402; the material blocking cylinder 401 is fixed on the bracket 4, the rear end of the material blocking rod 402 is fixed to the driving end of the material blocking cylinder 401, and the front end of the material blocking rod 402 is movably arranged in the discharge end of the sealing ring conveying track 30; by adopting this material blocking assembly, when the current sealing ring falls from the discharge end of the sealing ring conveying track into the material trough, the material blocking cylinder can push the material blocking rod to move forward, at this time, the material blocking rod can be inserted into the next sealing ring to block the next sealing ring, that is, the sealing rings can be fed one by one; when the material blocking cylinder drives the material blocking rod to move backward, the material blocking assembly can release the blockage of the next sealing ring, that is, the next sealing ring can fall from the discharge end of the sealing ring conveying track into the material trough.

[0038] When using the present invention, after the material blocking cylinder drives the material blocking rod to move backward, the material blocking assembly can release the blocking of the sealing ring from the sealing ring conveying track, that is, the sealing ring can fall from the discharge end of the sealing ring conveying track into the material trough. After the previous sealing ring falls into the material trough, the material blocking cylinder can push the material blocking rod to move forward. At this time, the material blocking rod can be inserted into the next sealing ring to block the next sealing ring, that is, the sealing rings can be fed one by one; when the sealing ring assembly mechanism needs to assemble the sealing ring located in the material trough into the sealing ring groove on the inner side of the end of the pipe fitting, the double-stroke cylinder first drives the first rod body and the second rod body The first rod and the second rod move forward synchronously. At this time, the front end of the assembly rod assembly composed of the first rod and the second rod can be inserted into the sealing ring in the material trough; then, the lifting cylinder can push the pressure block to move upward so that the pressure block presses the lower edge of the sealing ring into the hook groove, and then, the push-pull cylinder drives the second rod to move backward relative to the first rod. At this time, since the lower edge of the sealing ring is limited in the hook groove, during the backward movement of the second rod relative to the first rod, the sealing ring can be stretched and the upper edge of the sealing ring can be embedded in the embedding groove on the front end of the first rod (the reason why the pressure block is used to push the sealing ring before the second rod and the first rod stretch it) The lower edge of the sealing ring is pressed tightly in the hook groove, the purpose of which is to prevent the lower edge of the sealing ring from escaping from the hook groove before the second rod and the first rod start to stretch the sealing ring); then, the lifting cylinder drives the pressing block to move down and reset, and the double-stroke cylinder drives the first rod and the second rod to move forward synchronously again. At this time, the front end of the assembly rod assembly composed of the first rod and the second rod can be inserted into the front end of the support sleeve, and at this time, the second rod is in a position moved backward relative to the first rod, and maintains a stretched state for the sealing ring; then, the end of the pipe fitting is inserted into the support sleeve, and the end of the pipe fitting is sleeved on the front end of the assembly rod assembly. In this state, the upper edge of the sealing ring can be engaged with the upper edge of the sealing ring groove in the end of the pipe fitting; then, the push-pull cylinder drives the second rod body to move forward relative to the first rod body. At this time, the stretched state of the sealing ring is gradually cancelled, and finally the lower edge of the sealing ring can reach the lower edge position of the sealing ring groove in the end of the pipe fitting. At this time, due to the rebound effect of the sealing ring, the sealing ring can automatically engage with the sealing ring groove located in the end of the pipe fitting; finally, the double-stroke cylinder drives the first rod body and the second rod body to move backward synchronously to reset; through the above steps, the process of installing the sealing ring into the sealing ring groove on the inner side of the pipe fitting end is realized.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An automatic assembly device for inner hole sealing rings of pipe fittings, characterized by: The invention comprises a frame (1), a sealing ring supply mechanism and a sealing ring assembly mechanism; the sealing ring supply mechanism and the sealing ring assembly mechanism are both connected to the frame (1); the sealing ring supply mechanism is used to supply sealing rings (2) one by one to the sealing ring assembly mechanism; and the sealing ring assembly mechanism is used to assemble the sealing ring (2) into a sealing ring groove (31) on the inner side of the end of a pipe (3).

2. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 1 is characterized by: The sealing ring assembly mechanism comprises a bracket (4), a stopper sleeve (5), a support sleeve (6), a clamping assembly (7), an assembly rod assembly (8) and a driving assembly (9); the bracket (4) is fixed on the frame (1); the stopper sleeve (5) is fixed at the front end of the bracket (4); a material trough (10) for a single sealing ring (2) to slide in from top to bottom is formed between the rear end of the stopper sleeve (5) and the bracket (4); the discharge end of the sealing ring supply mechanism is fixed to the bracket (4) and extends to the upper end of the material trough (10); the support sleeve (6) is fixed at the front end of the stopper sleeve (5) and is used for inserting the end of the pipe fitting (3); the driving assembly (9) is connected to the rear side of the bracket (4); the rear end of the assembly rod assembly (8) is transmission-connected to the driving assembly (9); the assembly rod assembly ( The front end of the assembly rod assembly (8) is movably inserted into the bracket (4), and the driving component (9) is used to drive the front end of the assembly rod assembly (8) to be inserted into the sealing ring (2) located in the material groove (10); the pressing component (7) is connected to the bottom of the front end of the bracket (4), and the pressing end of the pressing component (7) is movably inserted from bottom to top in the gap between the stopper sleeve (5) and the bracket (4) and is used to press the lower edge of the sealing ring (2) located in the material groove (10) against the bottom of the front end of the assembly rod assembly (8); the driving component (9) is also used to drive the assembly rod assembly (8) so that the assembly rod assembly (8) stretches the sealing ring (2) located in the material groove (10), and enables the assembly rod assembly (8) to assemble the stretched sealing ring (2) into the sealing ring groove (31) located on the inner side of the end of the pipe (3).

3. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 2 is characterized in that: The assembly rod assembly (8) comprises a first rod body (81) and a second rod body (82); the second rod body (82) is connected to the bottom of the first rod body (81) in a slidable manner; an outer wall at the front end of the first rod body (81) is provided with an embedding groove (811) for embedding with the upper edge of the sealing ring (2); the bottom of the front end of the second rod body (82) is provided with a hook groove (821) for hooking with the lower edge of the sealing ring (2); the rear ends of the first rod body (81) and the second rod body (82) are both transmission-connected with a driving assembly (9); the driving assembly (9) is used to drive the first rod body (81) and the second rod body (82) to move forward and backward synchronously and to drive the second rod body (82) to move forward and backward relative to the first rod body (81).

4. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 3 is characterized by: The rear side walls at both ends of the embedding groove (811) form arc surfaces (812).

5. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 4 is characterized in that: The front end of the first rod body (81) is provided with a positioning hole (813), and the front end of the second rod body (82) is provided with a positioning block (822); when the second rod body (82) moves forward relative to the first rod body (81), the positioning block (822) is used to cooperate with the positioning hole (813) for insertion.

6. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 3 is characterized by: The clamping assembly (7) comprises a lifting cylinder (71) and a pressing block (72); the lifting cylinder (71) is vertically fixed to the bottom of the front side of the bracket (4); the lower end of the pressing block (72) is fixed to the driving end of the lifting cylinder (71); the upper end of the pressing block (72) forms the clamping end of the clamping assembly (7); when the lifting cylinder (71) drives the pressing block (72) to move upward, the upper end of the pressing block (72) is used to press the lower edge of the sealing ring (2) located in the material trough (10) into the hook groove (821).

7. The automatic assembly equipment for inner hole sealing rings of pipe fittings according to claim 3 is characterized by: The driving assembly (9) comprises a sliding seat (91), a two-stroke cylinder (92) and a push-pull cylinder (93); the sliding seat (91) is connected to the bracket (4) in a manner that it can slide forward and backward; the rear end of the first rod body (81) is fixed to the sliding seat (91); the two-stroke cylinder (92) is fixed to the bracket (4) and is used to drive the sliding seat (91) to slide forward and backward; the sliding seat (91) is fixed to the driving end of the two-stroke cylinder (92); the push-pull cylinder (93) is fixed to the sliding seat (91) and is used to drive the second rod body (82) to slide forward and backward relative to the first rod body (81); the rear end of the second rod body (82) is fixed to the driving end of the push-pull cylinder (93).

8. The automatic assembly equipment for inner hole sealing rings of pipe fittings according to claim 7 is characterized in that: The sliding seat (91) is connected to the bracket (4) in a manner that it can slide back and forth via a guide rail assembly (94).

9. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 2, characterized in that: The sealing ring supply mechanism comprises a sealing ring vibrating loading tray (20), a sealing ring conveying track (30) and a material blocking assembly; the sealing ring vibrating loading tray (20) is fixed to the frame (1), the feeding end of the sealing ring conveying track (30) is connected to the discharging end of the sealing ring vibrating loading tray (20), the discharging end of the sealing ring conveying track (30) is fixed to the bracket (4) and extends to the upper end of the material trough (10); the material blocking assembly is connected to the bracket (4), and after a previous sealing ring (2) falls from the discharging end of the sealing ring conveying track (30) into the material trough (10), the material blocking assembly is used to block the next sealing ring (2) from falling into the material trough (10).

10. The automatic assembly equipment for inner hole sealing ring of pipe fittings according to claim 9, characterized in that: The material blocking assembly comprises a material blocking cylinder (401) and a material blocking rod (402); the material blocking cylinder (401) is fixed on the bracket (4), the rear end of the material blocking rod (402) is fixed to the driving end of the material blocking cylinder (401), and the front end of the material blocking rod (402) is movably arranged in the discharge end of the sealing ring conveying track (30).

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