A pipe joint assembly apparatus

Abstract

The utility model provides a kind of pipe joint combination assembly device, including machine table, placing mechanism, shearing mechanism, bolt press equipment and bolt supply mechanism, placing mechanism includes fixed base, base fixture and lid fixture, fixed base is movably set on machine table, base fixture is fixed on fixed base, lid fixture is located at the right side of base fixture and is movably set on fixed base, shearing mechanism is equipped in the rear end of front and back translation mechanism and is equipped with first shearing unit for cutting off the water gap of base and second shearing unit for cutting off the water gap of lid, bolt supply mechanism is fixed on machine table and supplies bolt to bolt press equipment, bolt press equipment is fixed on fixed base, and it is used to sequentially press bolt into the assembly hole of the connecting portion of base and the assembly hole of the connecting portion of lid.The utility model realizes water gap automatic cutting-off, bolt automatic assembly by mechanical cooperative operation, realizes saving labor, improves operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of assembly equipment technology, and more specifically, to a pipe joint assembly device. Background Technology

[0002] In the field of industrial power connector manufacturing, pipe fitting assemblies, as key functional components, are usually manufactured using an integrated injection molding process. They consist of a base with through-hole assembly holes and a cover with a closed blind hole structure. After the assembly is formed, a series of processes such as sprue shearing and separation, precise alignment of assembly holes, and metal pin pressing are required.

[0003] In the existing production process, the above-mentioned steps mainly rely on manual operation, which has the following technical defects:

[0004] (1) Insufficient work efficiency and quality stability: The manual shearing of the sprue is prone to producing irregular burrs at the separation interface, which causes intermittent micro-deformation of the contact surface between the base and the cover, directly affecting the fit of the subsequent assembly surface.

[0005] (2) Lack of assembly positioning reference: Operators need to manually align the assembly holes of the base and the cover. Due to the lack of physical positioning device, it is difficult to ensure the coaxiality of the two holes.

[0006] (3) The pin pressing process poses significant risks: When there is a coaxiality deviation, the sharp edge of the pin end will produce a cutting effect with the hole wall, especially at the end of the blind hole, forming a buildup of metal debris. Given that the cover assembly hole is a closed blind hole structure, such process debris cannot be removed by conventional means, directly causing functional failure of the product.

[0007] The current production model not only leads to high labor costs, but also severely restricts the improvement of product yield, making it difficult to meet the high reliability requirements of modern industry for power connector components. Utility Model Content

[0008] The purpose of this utility model is to overcome at least one defect in the prior art and provide an automated pipe joint assembly device that integrates sprue cutting, assembly, and pin pressing. Through mechanical collaborative operation, it realizes automatic sprue cutting and automatic pin assembly, thereby saving labor and improving work efficiency.

[0009] To address the aforementioned problems, this utility model provides a pipe fitting assembly device, including a machine base and a placement mechanism, a shearing mechanism, a pin pressing mechanism, and a pin supply mechanism mounted on the machine base. The placement mechanism includes a fixed base, a base clamp for fixing the base, and a cover clamp for fixing the cover. The fixed base is movable on the machine base via a front-back translation mechanism. The base clamp is fixed on the fixed base. The cover clamp is located on the right side of the base clamp and is movable on the fixed base via a left-right translation mechanism. The shearing mechanism is located at the rear end of the front-back translation mechanism and includes a first shearing unit for cutting off the sprue of the base and a second shearing unit for cutting off the sprue of the cover. The pin supply mechanism is fixed on the machine base and supplies pins to the pin pressing mechanism. The pin pressing mechanism is fixed on the fixed base and is used to press the pins sequentially into the assembly holes of the base connection and the cover connection.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This utility model achieves full automation of the sprue shearing, assembly alignment, and pin pressing process through the coordinated operation of the placement mechanism, shearing mechanism, pin pressing mechanism, and pin supply mechanism integrated on the machine base: The fixed seat is precisely moved to the shearing station by the front and rear translation mechanism, and the injection gates of the base and the cover are simultaneously cut off by the independently controlled first shearing unit and the second shearing unit, eliminating burrs and contact surface deformation caused by manual step-by-step shearing; The base clamp is fixed to the fixed seat, and the cover clamp is adjusted to the position of the assembly hole of the cover by the left and right translation mechanism, and the mechanical drive automatically aligns the double holes, which significantly improves the assembly efficiency and coaxial accuracy compared with manual visual alignment; The pin pressing mechanism and the pin supply mechanism work together through mechanical positioning and directional conveying to automatically and vertically press the pin into the coaxial assembly hole, eliminating the axial offset and blind hole debris residue during manual pressing, and simultaneously solving the process defects of low efficiency, poor alignment accuracy, and inability to remove debris in traditional operations, ensuring assembly quality and production reliability.

[0011] Specifically, the forward and backward translation mechanism includes a first slider rail assembly arranged side by side and a forward and backward drive linear module. The forward and backward drive linear module extends forward and backward and is fixed to the top of the machine base, with its movable block fixedly connected to the fixed seat. The first slider rail assembly extends forward and backward and is fixed to the top of the machine base, with its rear end extending below the shearing port of the shearing mechanism. The fixed seat is fixed to the slider of the first slider rail assembly. With this structure, the precise forward and backward linear displacement of the fixed seat is achieved through the synergistic effect of the first slider rail assembly and the forward and backward drive linear module. This ensures rapid switching between the base clamp and the cover clamp at the shearing mechanism station and the pressing station. The high rigidity guiding characteristics of the rail assembly suppress vibration and offset during displacement. Combined with the closed-loop control of the linear module, the displacement repeatability and positioning accuracy are high, effectively ensuring the stability of the process connection between shearing the sprue and pressing the pin.

[0012] Specifically, the left-right translation mechanism includes a fixed plate and left-right drive linear modules. The fixed plate extends left and right, fixed to the top of the fixed base and located on the right side of the base fixture. The left-right drive linear modules are distributed and fixed on the fixed plate, and the cover fixture is fixed to the movable block of the left-right drive linear modules. With this structure, the rigid linkage design of the fixed plate and the left-right drive linear modules enables precise lateral displacement control of the cover fixture. The movement path of the cover fixture is strictly aligned with the axis of the assembly hole of the base fixture. This actively corrects the assembly hole position deviation caused by injection molding deformation or manual placement, ensuring that the coaxiality of the two holes meets the requirements for pin pressing. This mechanism replaces manual alignment with mechanical constraints, eliminating axis misalignment caused by visual errors or insufficient manual adjustment, avoiding problems such as hole wall cutting and debris residue during pin pressing, and significantly improving assembly efficiency.

[0013] As an improvement, the bottom of the cover clamp is equipped with a lifting cylinder for driving the cover clamp to rise and fall. The lifting cylinder is fixed on the movable block of the left and right drive linear module, and the piston rod of the lifting cylinder is set upward and fixed to the bottom of the cover clamp. After applying this structure, the cover clamp is driven to rise and fall vertically by the lifting cylinder, dynamically compensating for the height difference between the base and the cover caused by fixed installation or injection molding tolerances. During the lifting process, the contact surface between the cover and the base achieves adaptive fitting under the action of pre-compression force, eliminating the problem of tilting of the assembly hole axis caused by intermittent misalignment during manual placement. This unit ensures that the assembly hole of the cover and the assembly hole of the base are strictly aligned in the vertical direction through rigid lifting guide and pressure feedback control. It works in conjunction with the left and right translation mechanism to achieve three-dimensional coaxial positioning, so as to accurately position the axis of the two holes and fundamentally avoid the risk of off-center friction and debris residue caused by height difference during the pin pressing process.

[0014] Specifically, the shearing mechanism includes a shear frame fixed to the machine base, and a first shear, a second shear, a first lifting cylinder, and a second lifting cylinder mounted on the shear frame. The first shear and the first lifting cylinder constitute the first shearing unit. The first shear is positioned corresponding to the base clamp and is fixedly connected to the piston rod of the first lifting cylinder. The first lifting cylinder is fixed to the shear frame and drives the first shear to move towards the base clamp. The second shear and the second lifting cylinder constitute the second shearing unit. The second shear is positioned corresponding to the cover clamp and is fixedly connected to the piston rod of the second lifting cylinder. The second lifting cylinder is fixed to the shear frame and drives the second shear to move towards the cover clamp. With this structure, the independently controlled first and second shearing units drive their corresponding shears to synchronously perform sprue shearing. This dual-station collaborative operation increases shearing efficiency and avoids positioning offset caused by single-blade, multi-stage shearing, ensuring a burr-free and neat separation surface between the base and the cover. Furthermore, the dual shearing unit design allows for independent adjustment of shearing parameters to adapt to the precise cutting requirements of different scenarios.

[0015] As an improvement, a third pair of shears and a third lifting cylinder for driving the third shears up and down are provided below the base clamp. The output end of the third lifting cylinder is fixed to the top of the fixed base with its output end facing upwards. The third shears are arranged vertically and vertically corresponding to the blades of the first shears. After applying this structure, the third shears and the first shears form an upper and lower shearing structure, generating bidirectional shearing force when shearing the base sprue. This transforms the tensile fracture mode caused by traditional unilateral shearing into a shear fracture mode, resulting in a smoother cross-section and avoiding deformation of the base mounting holes caused by unidirectional force.

[0016] As an improvement, a tilt adjustment mechanism is provided between the base clamp and the fixed seat. The tilt adjustment mechanism includes a left tilt adjustment mechanism and a right support mechanism arranged side by side. The left tilt adjustment mechanism includes a multi-stage hinged column and a horizontal tension cylinder. The multi-stage hinged column is composed of at least three connecting rods that are hinged end to end from top to bottom, including a top connecting rod at the top, a bottom connecting rod at the bottom, and a middle connecting rod in the middle position. The top connecting rod is connected to the left bottom of the base clamp through a first hinge joint, and the bottom connecting rod is connected to the fixed seat through a second hinge joint. The horizontal tension cylinder is fixedly connected to the fixed seat on the left side of the multi-stage hinged column, and the piston rod of the horizontal tension cylinder extends from left to right to the middle connecting rod and is fixedly connected to it. The right support mechanism includes a frame vertically fixed on the fixed seat and a support rod extending front to back and installed at the top of the frame. The two ends of the support rod are connected to the right bottom of the base clamp through a third hinge joint. The base clamp can swing up and down around the support rod as a pivot. After applying this structure, the active extension and retraction of the horizontal tension cylinder in the left tilting mechanism drives the multi-stage hinged column to deform in a coordinated manner, precisely adjusting the height of the left side of the base fixture. This allows the base to form a controllable tilt angle with the right support rod as the axis of rotation. This design can dynamically compensate for the slight tilt angle deviation of the base assembly hole caused by shrinkage deformation of the injection molded part or manual placement, so that the axis of the right end assembly hole of the base is actively aligned with the cover assembly hole, eliminating the subjective error of traditional visual leveling, reducing the overlap deviation of the blind hole and through hole axes, and is particularly suitable for the precise alignment of deep blind hole structures. At the same time, it avoids the risk of workpiece surface scratches caused by repeated manual adjustments.

[0017] Specifically, the pin pressing mechanism includes a pair of stamping devices and a stamping positioning seat. The pair of stamping devices are arranged on the front and rear sides of the base fixture and fixed on the fixed seat. The stamping positioning seat is fixed on the fixed seat and located between the stamping devices and the base fixture. The stamping positioning seat has a stamping positioning hole for the stamping output end of the stamping device to extend into. The stamping positioning hole passes through the body of the stamping positioning seat from front to back and is coaxially aligned with the assembly hole of the base placed on the base fixture. The feeding operation area of ​​the pin supply mechanism is located between the stamping positioning seat and the base fixture. After applying this structure, the synchronous pressing operation of the pins at both ends of the base assembly hole is achieved through the coordinated design of a pair of front and rear stamping equipment and stamping positioning seats. The stamping positioning seats are fixed between the base fixture and the stamping equipment, and their stamping positioning holes are strictly coaxially aligned with the base assembly holes to ensure that the pins are pressed in vertically along the axis of the assembly holes, avoiding cutting of the inner wall of the blind hole and debris residue caused by skew. The dual-station layout, combined with the feeding area of ​​the pin supply mechanism, enables seamless connection between the pin pressing and feeding actions, significantly shortening the process cycle. At the same time, mechanical constraints ensure the coaxiality and stability of the pin pressing, improving assembly reliability.

[0018] Specifically, the pin supply mechanism includes a vibratory feeder and a feeding mechanism disposed between the vibratory feeder and the pin pressing mechanism. The feeding mechanism includes a cross frame and a pair of receiving molds, a pair of feeding molds, a distributing component, and a push cylinder disposed on the cross frame. The cross frame is fixed to the machine base and extends outward on the left side of the base fixture. The pair of receiving molds are fixed to the cross frame front and back and are respectively provided with a first insertion hole that passes through from front to back. The first insertion hole is connected to the discharge port of the vibratory feeder through a conveying rail. The pair of feeding molds are disposed to the cross frame front and back and are located between the pair of receiving molds. The feeding molds are provided with a second insertion hole that passes through from front to back. The distributing component is located between the receiving molds and the feeding molds and is used to transfer the pins entering the first insertion hole to the second insertion hole. The feeding molds are correspondingly set with the stamping equipment and can be moved left and right on the cross frame through the second slider rail assembly. The push cylinder is fixed to the machine base on the left side of the second slider rail assembly and is fixedly connected to the pair of feeding molds through a connecting plate. The push cylinder is used to drive the feeding molds to move from the receiving molds to between the stamping positioning seat and the base fixture. By applying this structure, the automatic orientation, sorting, and precise transfer of pins are achieved through the coordinated design of the vibratory feeder and the material distribution assembly. The material distribution mold, through the cooperation of vertical lifting and ejection mechanisms, transfers the pins from the receiving mold to the loading mold step by step. A push cylinder drives the loading mold to move laterally along the slide rail to the pressing station, ensuring precise alignment of the pin axis with the stamping positioning hole. This structure, through the timing coordination of mechanical material distribution and pushing, prevents pins from skewing or jamming during transfer, ensuring the continuity and stability of the pressing process. It also adapts to the need for rapid changeover of different pin specifications, reducing manual intervention.

[0019] Specifically, the material distribution assembly includes a fixed frame fixed to the horizontal frame, and a material blocking mold, a material distribution mold, and an ejection mechanism set on the fixed frame. The material blocking mold and the receiving mold are fixed to the fixed frame in a front-to-back arrangement. The two sides of the material distribution mold are attached to the receiving mold and the material blocking mold. The material distribution mold has a third through-hole that communicates with the first through-hole. The material distribution mold can be moved up and down on the fixed frame by a fourth lifting cylinder. The ejection mechanism is located below the receiving mold. The ejection mechanism includes an ejection positioning seat, an ejection cylinder, and an ejector pin. The ejection positioning seat is fixed to the horizontal frame and is arranged on the front and back sides of the material distribution mold, separate from the feeding mold. The ejection positioning seat has an ejection positioning hole that communicates in a front-to-back arrangement. The ejector pin moves back and forth and is set in the ejection positioning hole and is fixed to the piston rod of the ejection cylinder. The ejection cylinder is fixed to the horizontal frame and is used to drive the ejector pin to push the pin in the third through-hole into the second through-hole. After applying this structure, through the vertical linkage design of the retaining mold and the distributing mold, the distributing mold achieves precise transfer of the pin from the receiving mold to the feeding mold under the drive of the fourth lifting cylinder. The ejection mechanism ejects the pin axially along the third insertion hole of the distributing mold, ensuring that the pin enters the second insertion hole of the feeding mold without deviation. At the same time, the lifting action of the distributing mold is separated from the ejection and pushing processes, avoiding interference or jamming of the pin during the transfer process. This structure, through the synergistic effect of mechanical limiting and directional ejection, ensures the stability and continuity of the pin conveying path, adapts to the rapid distributing needs of pins of different sizes, and reduces the frequency of manual intervention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is the first perspective view of the present invention;

[0022] Figure 3 This is the second perspective view of the present invention;

[0023] Figure 4 This is the third perspective view of the present invention;

[0024] Figure 5 This is the first perspective view of the placement mechanism in this utility model;

[0025] Figure 6 This is the second perspective view of the placement mechanism in this utility model;

[0026] Figure 7 This is a schematic diagram of the shearing mechanism in this utility model;

[0027] Figure 8 This is a schematic diagram of the overall structure of the pin supply mechanism in this utility model;

[0028] Figure 9This is a partial structural diagram of the pin supply mechanism in this utility model;

[0029] Figure 10 for Figure 9 Enlarged view of point A in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Machine base; 2. Placement mechanism; 20. Fixed base; 21. Base clamp; 22. Cover clamp; 23. Front and rear translation mechanism; 231. First slider rail assembly; 232. Front and rear drive linear module; 24. Left and right translation mechanism; 241. Fixed plate; 242. Left and right drive linear module; 25. Lifting cylinder; 3. Shearing mechanism; 30. Scissors frame; 31. First scissors; 32. Second scissors; 33. Third scissors; 4. Pin pressing mechanism; 41. Stamping equipment; 42. Stamping positioning seat; 420. Stamping positioning hole; 5. Pin supply mechanism; 51. Vibratory feeder; 510. Conveying rail; 52. Feeding mechanism; 61. First lifting cylinder; 62. Second lifting cylinder; 63. Third lifting cylinder; 7. Tilting adjustment mechanism; 701. First hinge pair; 7 02. Second hinge pair; 703. Third hinge pair; 71. Left tilting mechanism; 711. Multi-stage hinged column; 7111. Top connecting rod; 7112. Bottom connecting rod; 7113. Middle connecting rod; 712. Horizontal tension cylinder; 72. Right support mechanism; 721. Frame; 722. Supporting longitudinal rod; 80. Horizontal frame; 801. First insertion hole; 802. Second insertion hole; 803. Third insertion hole; 81. Receiving mold; 82. Feeding mold; 83. Material distribution assembly; 830. Fixing frame; 831. Material blocking mold; 832. Material distribution mold; 833. Ejection mechanism; 834. Fourth lifting cylinder; 84. Push cylinder; 91. Connecting plate; 92. Second slider rail assembly; 93. Ejection positioning seat; 930. Ejection positioning hole; 94. Ejection cylinder; 95. Ejector pin. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] like Figure 1As shown, a pipe fitting assembly device includes a machine base 1 and a placement mechanism 2, a shearing mechanism 3, a pin pressing mechanism 4, and a pin supply mechanism 5 disposed on the machine base 1. The placement mechanism 2 includes a fixed base 20, a base clamp 21 for fixing the base and a cover clamp 22 for fixing the cover. The fixed base 20 is movable on the machine base 1 via a front-back translation mechanism 23. The base clamp 21 is fixed on the fixed base 20. The cover clamp 22 is located to the right of the base clamp 21 and is movable on the fixed base 20 via a left-right translation mechanism 24. The shearing mechanism 3 is disposed at the rear end of the front-back translation mechanism 23 and is provided with a first shearing unit for cutting off the sprue of the base and a second shearing unit for cutting off the sprue of the cover. The pin supply mechanism 5 is fixed on the machine base 1 and supplies pins to the pin pressing mechanism 4. The pin pressing mechanism 4 is fixed on the fixed base 20 and is used to press the pins sequentially into the assembly holes of the connecting parts of the base and the connecting parts of the cover.

[0034] This embodiment achieves full automation of the sprue shearing, assembly alignment, and pin pressing process through the coordinated operation of the placement mechanism 2, shearing mechanism 3, pin pressing mechanism 4, and pin supply mechanism 5 integrated on the machine tool 1: The fixed seat 20 is precisely moved to the shearing station by the front and rear translation mechanism 23, and the injection gates of the base and the cover are simultaneously cut off by the independently controlled first shearing unit and the second shearing unit, eliminating burrs and contact surface deformation caused by manual step-by-step shearing; the base clamp 21 is fixed to the fixed seat 20, and the cover clamp 22 is adjusted laterally by the left and right translation mechanism 24 to adjust the position of the assembly hole of the cover, and the mechanical drive automatically aligns the double holes, which significantly improves assembly efficiency and coaxial accuracy compared with manual visual alignment; the pin pressing mechanism 4 and the pin supply mechanism 5 work together through mechanical positioning and directional conveying to automatically and vertically press the pin into the coaxial assembly hole, eliminating the axial offset and blind hole debris residue during manual pressing, and simultaneously solving the process defects of low efficiency, poor alignment accuracy, and inability to remove debris in traditional operations, ensuring assembly quality and production reliability.

[0035] like Figure 1As shown, the forward and backward translation mechanism 23 includes a first slider rail assembly 231 arranged side by side and a forward and backward drive linear module 232. The forward and backward drive linear module 232 extends forward and backward and is fixed to the top of the machine base 1, and its movable block is fixedly connected to the fixed seat 20. The first slider rail assembly 231 extends forward and backward and is fixed to the top of the machine base 1, and its rear end extends to below the shearing port of the shearing mechanism 3. The fixed seat 20 is fixed to the slider of the first slider rail assembly 231. After applying this structure, through the synergistic effect of the first slider rail assembly 231 and the forward and backward drive linear module 232, the precise forward and backward linear displacement of the fixed seat 20 is achieved, ensuring the rapid switching between the base clamp 21 and the cover clamp 22 at the shearing mechanism 3 station and the pressing station. The high rigidity guiding characteristics of the rail assembly can suppress vibration deviation during the displacement process. Combined with the closed-loop control of the linear module, the displacement repeatability positioning accuracy is high, effectively ensuring the stability of the process connection between shearing the sprue and pressing the pin.

[0036] like Figure 6 As shown, the left-right translation mechanism 24 includes a fixed plate 241 and left-right drive linear modules 242. The fixed plate 241 extends left and right and is fixed to the top of the fixed base 20 and located on the right side of the base clamp 21. The left-right drive linear modules 242 are distributed and fixed on the fixed plate 241. The cover clamp 22 is fixed to the movable block of the left-right drive linear modules 242. After applying this structure, the rigid linkage design between the fixed plate 241 and the left-right drive linear modules 242 enables precise lateral displacement control of the cover clamp 22. The moving path of the cover clamp 22 is strictly aligned with the axis of the assembly hole of the base clamp 21. It can actively correct the assembly hole position deviation caused by injection molding deformation or manual placement between the base and the cover, ensuring that the coaxiality of the two holes meets the requirements of pin pressing. This mechanism replaces manual alignment operation with mechanical constraints, eliminates axis offset caused by visual errors or insufficient manual adjustment, avoids hole wall cutting and debris residue problems when the pin is pressed in, and significantly improves assembly efficiency.

[0037] like Figure 6As shown, the bottom of the cover clamp 22 is equipped with a lifting cylinder 25 for driving the cover clamp 22 to rise and fall. The lifting cylinder 25 is fixed on the movable block of the left and right drive linear module 242. The piston rod of the lifting cylinder 25 is set upward and fixed to the bottom of the cover clamp 22. After applying this structure, the cover clamp 22 is driven to rise and fall vertically by the lifting cylinder 25, dynamically compensating for the height difference between the base and the cover caused by fixed installation or injection molding tolerance. During the lifting process, the contact surface between the cover and the base achieves adaptive fitting under the action of pre-compression force, eliminating the problem of tilting of the assembly hole axis caused by intermittent misalignment during manual placement. This unit ensures that the assembly hole of the cover and the assembly hole of the base are strictly aligned in the vertical direction through rigid lifting guide and pressure feedback control. It works in conjunction with the left and right translation mechanism 24 to achieve three-dimensional coaxial positioning, so that the axis of the two holes is accurately positioned, fundamentally avoiding the risk of off-center friction and debris residue caused by height difference during the pin pressing process.

[0038] like Figure 4 and Figure 7 As shown, the shearing mechanism 3 includes a shear frame 30 fixed on the machine base 1, and a first shear 31, a second shear 32, a first lifting cylinder 61, and a second lifting cylinder 62 disposed on the shear frame 30. The first shear 31 and the first lifting cylinder 61 constitute a first shearing unit. The first shear 31 is disposed corresponding to the base clamp 21 and is fixedly connected to the piston rod of the first lifting cylinder 61. The first lifting cylinder 61 is fixed on the shear frame 30 and is used to drive the first shear 31 to move towards the base clamp 21. The second shear 32 and the second lifting cylinder 62 constitute a second shearing unit. The second shear 32 is disposed corresponding to the cover clamp 22 and is fixedly connected to the piston rod of the second lifting cylinder 62. The second lifting cylinder 62 is fixed on the shear frame 30 and is used to drive the second shear 32 to move towards the cover clamp 22. After applying this structure, the first and second shearing units, which are independently controlled, drive the corresponding shears to perform sprue shearing synchronously. The dual-station collaborative operation makes the shearing efficiency higher. At the same time, it avoids the positioning offset caused by single-blade shearing in multiple steps, ensuring that the separation surface between the base and the cover is burr-free and neater. In addition, the dual shearing unit design allows for independent adjustment of shearing parameters to adapt to the precise cutting requirements of the scenario.

[0039] like Figure 4 As shown, a third shear 33 and a third lifting cylinder 63 for driving the third shear 33 to move up and down are provided below the base clamp 21. The output end of the third lifting cylinder 63 is fixed to the top of the fixed base 20 with its output end facing upward. The blades of the third shear 33 and the first shear 31 are arranged vertically and vertically respectively. After applying this structure, the third shear 33 and the first shear 31 form an upper and lower shearing structure, which generates a bidirectional shearing force when shearing the base sprue. This transforms the tensile fracture mode caused by traditional unilateral shearing into a shear fracture mode, resulting in a higher degree of cross-sectional flatness and avoiding deformation of the base assembly hole caused by unidirectional force.

[0040] like Figure 5 As shown, a tilt adjustment mechanism 7 is provided between the base clamp 21 and the fixed seat 20. The tilt adjustment mechanism 7 includes a left tilt adjustment mechanism 71 and a right support mechanism 72 arranged side by side. The left tilt adjustment mechanism 71 includes a multi-stage hinged column 711 and a horizontal tension cylinder 712. The multi-stage hinged column 711 is composed of at least three connecting rods that are hinged end to end from top to bottom, including a top connecting rod 7111 at the top, a bottom connecting rod 7112 at the bottom, and a middle connecting rod 7113 in the middle position. The top connecting rod 7111 is connected to the left bottom of the base clamp 21 through a first hinge joint 701. The connecting rod 7112 is connected to the fixed base 20 through the second hinge pair 702. The horizontal tension cylinder 712 is fixedly connected to the fixed base 20 on the left side of the multi-stage hinge column 711. The piston rod of the horizontal tension cylinder 712 extends from left to right to the middle connecting rod 7113 and is fixedly connected to it. The right support mechanism 72 includes a frame 721 vertically fixed on the fixed base 20 and a support rod 722 extending forward and backward and installed at the top of the frame 721. The two ends of the support rod 722 are connected to the right bottom of the base clamp 21 through the third hinge pair 703. The base clamp 21 can swing up and down with the support rod 722 as the pivot. After applying this structure, the horizontal tension cylinder 712 in the left tilting mechanism 71 actively extends and retracts, driving the multi-stage hinged column 711 to deform in a coordinated manner, precisely adjusting the height of the left side of the base clamp 21, so that the base forms a controllable tilt angle with the right support rod 722 as the axis of rotation. This design can dynamically compensate for the slight tilt angle deviation of the base assembly hole caused by the shrinkage deformation of the injection molded part or manual placement, so that the axis of the right end assembly hole of the base actively aligns with the cover assembly hole, eliminating the subjective error of traditional visual leveling, reducing the overlap deviation of the blind hole and through hole axis, and is particularly suitable for the precise alignment of deep blind hole structures, while avoiding the risk of workpiece surface scratches caused by repeated manual adjustments.

[0041] like Figure 3As shown, the pin pressing mechanism 4 includes a pair of stamping devices 41 and a stamping positioning seat 42. The pair of stamping devices 41 are arranged on the front and rear sides of the base clamp 21 and fixed on the fixed seat 20. The stamping positioning seat 42 is fixed on the fixed seat 20 and located between the stamping devices 41 and the base clamp 21. The stamping positioning seat 42 is provided with a stamping positioning hole 420 for the stamping output end of the stamping device 41 to extend into. The stamping positioning hole 420 passes through the body of the stamping positioning seat 42 from front to back and is coaxially aligned with the assembly hole of the base placed on the base clamp 21. The feeding operation area of ​​the pin supply mechanism 5 is located between the stamping positioning seat 42 and the base clamp 21. After applying this structure, the synchronous pressing operation of the pins at both ends of the base assembly hole is realized through the coordinated design of the front and rear stamping equipment 41 and the stamping positioning seat 42. The stamping positioning seat 42 is fixed between the base fixture 21 and the stamping equipment 41, and its stamping positioning hole 420 is strictly coaxially aligned with the base assembly hole to ensure that the pin is pressed in vertically along the axis of the assembly hole, avoiding cutting of the inner wall of the blind hole and debris residue caused by skew. The dual-station layout, combined with the feeding area of ​​the pin supply mechanism 5, makes the pin pressing and feeding actions seamlessly connected, significantly shortening the process cycle. At the same time, the coaxiality and stability of the pin pressing are ensured by mechanical constraints, improving the assembly reliability.

[0042] like Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10As shown, the pin supply mechanism 5 includes a vibratory feeder 51 and a feeding mechanism 52 disposed between the vibratory feeder 51 and the pin pressing mechanism 4. The feeding mechanism 52 includes a crossbeam 80 and a pair of receiving molds 81, a pair of feeding molds 82, a distributing component 83, and a pusher cylinder 84 disposed on the crossbeam 80. The crossbeam 80 is fixed to the machine base 1 and extends outward to the left side of the base clamp 21. The pair of receiving molds 81 are fixed to the crossbeam 80 in a front-to-back distribution and are respectively provided with a first insertion hole 801 that passes through from front to back. The first insertion hole 801 is connected to the discharge port of the vibratory feeder 51 through the conveying rail 510. The pair of feeding molds 82 are disposed in a front-to-back distribution on the crossbeam 80 and are located in a... Between the receiving molds 81, the feeding mold 82 has a second through hole 802. The material distribution component 83 is located between the receiving mold 81 and the feeding mold 82, and is used to transfer the pins entering the first through hole 801 to the second through hole 802. The feeding mold 82 is correspondingly set with the stamping equipment 41, and is mounted on the crossbeam 80 by means of the second slider rail assembly 92, which can move left and right. The push cylinder 84 is fixed to the machine base 1 on the left side of the second slider rail assembly 92, and is fixedly connected to a pair of feeding molds 82 by means of the connecting plate 91. The push cylinder 84 is used to drive the feeding mold 82 to move from the receiving mold 81 to between the stamping positioning seat 42 and the base clamp 21. After applying this structure, the automatic orientation and precise transfer of the pins are realized through the linkage design of the vibratory feeder 51 and the material distribution component 83. The material distribution mold 832, through the cooperation of vertical lifting and ejection mechanism 833, transfers the pins from receiving mold 81 to loading mold 82 step by step. Push cylinder 84 drives loading mold 82 to move laterally along slide rail to the pressing station, ensuring precise alignment of the pin axis with the stamping positioning hole 420. This structure, through the timing coordination of mechanical material distribution and pushing, avoids pin misalignment or jamming during transfer, ensuring the continuity and stability of the pressing process. It also adapts to the need for rapid changeover of different pin specifications, reducing manual intervention.

[0043] like Figure 9 and Figure 10As shown, the material distribution assembly 83 includes a fixed frame 830 fixed to the crossbeam 80, and a material blocking mold 831, a material distribution mold 832, and an ejection mechanism 833 disposed on the fixed frame 830. The material blocking mold 831 and the receiving mold 81 are distributed front to back and fixed on the fixed frame 830. The two sides of the material distribution mold 832 are attached to the receiving mold 81 and the material blocking mold 831. The material distribution mold 832 is provided with a third insertion hole 803 that passes through from front to back and communicates with the first insertion hole 801. The material distribution mold 832 can be moved up and down on the fixed frame 830 by a fourth lifting cylinder 834. The ejection mechanism 833 is located below the receiving mold 81. The ejection mechanism 833 includes an ejection positioning seat 93, an ejection cylinder 94, and an ejector pin 95. The ejection positioning seat 93 is fixed on the cross frame 80 and is located on the front and rear sides of the material distribution mold 832, separate from the feeding mold 82. The ejection positioning seat 93 has an ejection positioning hole 930 that extends through the front and rear. The ejector pin 95 moves back and forth and is located in the ejection positioning hole 930 and is fixed to the piston rod of the ejection cylinder 94. The ejection cylinder 94 is fixed on the cross frame 80 and is used to drive the ejector pin 95 to push the pin in the third insertion hole 803 into the second insertion hole 802. After applying this structure, through the vertical linkage design of the retaining mold 831 and the distributing mold 832, the distributing mold 832, driven by the fourth lifting cylinder 834, achieves the precise transfer of the pin from the receiving mold 81 to the feeding mold 82. The ejection mechanism 833 ejects the pin axially along the third insertion hole 803 of the distributing mold 832, ensuring that the pin enters the second insertion hole 802 of the feeding mold 82 without deviation. At the same time, the lifting action of the distributing mold 832 is separated from the ejection and pushing processes, avoiding interference or jamming of the pin during the transfer process. This structure, through the synergistic effect of mechanical limiting and directional ejection, ensures the stability and continuity of the pin conveying path, adapts to the rapid distributing needs of pins of different sizes, and reduces the frequency of manual intervention.

[0044] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A pipe fitting assembly device, comprising a machine base (1) and a placement mechanism (2), a shearing mechanism (3), a pin pressing mechanism (4), and a pin supply mechanism (5) disposed on the machine base (1), characterized in that: The placement mechanism (2) includes a fixed base (20), a base clamp (21) for fixing the base, and a cover clamp (22) for fixing the cover. The fixed base (20) is movable back and forth on the machine base (1) via a front and rear translation mechanism (23). The base clamp (21) is fixed on the fixed base (20). The cover clamp (22) is located on the right side of the base clamp (21) and is movable left and right on the fixed base (20) via a left and right translation mechanism (24). The shearing mechanism (3) is located at the rear end of the front and rear translation mechanism (23) and is provided with a first shearing unit for cutting off the water outlet of the base and a second shearing unit for cutting off the water outlet of the cover. The pin supply mechanism (5) is fixed on the machine base (1) and supplies pins to the pin pressing mechanism (4). The pin pressing mechanism (4) is fixed on the fixed base (20) and is used to press the pins into the assembly holes of the connecting part of the base and the connecting part of the cover in sequence.

2. The pipe fitting assembly device according to claim 1, characterized in that: The forward and backward translation mechanism (23) includes a first slider rail assembly (231) arranged side by side on the left and right and a forward and backward drive linear module (232). The forward and backward drive linear module (232) extends forward and backward and is fixed to the top of the machine base (1), and its movable block is fixedly connected to the fixed seat (20). The first slider rail assembly (231) extends forward and backward and is fixed to the top of the machine base (1), and its rear end extends to the bottom of the shearing opening of the shearing mechanism (3). The fixed seat (20) is fixed on the slider of the first slider rail assembly (231).

3. The pipe fitting assembly device according to claim 1, characterized in that: The left and right translation mechanism (24) includes a fixed plate (241) and a left and right drive linear module (242). The fixed plate (241) extends left and right and is fixed to the top of the fixed base (20) and located on the right side of the base clamp (21). The left and right drive linear module (242) is distributed left and right and fixed on the fixed plate (241). The cover clamp (22) is fixed on the movable block of the left and right drive linear module (242).

4. The pipe fitting assembly device according to claim 3, characterized in that: The bottom of the cover clamp (22) is provided with a lifting cylinder (25) for driving the cover clamp (22) to rise and fall. The lifting cylinder (25) is fixed on the movable block of the left and right drive linear module (242). The piston rod of the lifting cylinder (25) is set upward and fixed to the bottom of the cover clamp (22).

5. The pipe fitting assembly device according to claim 2, characterized in that: The shearing mechanism (3) includes a shear frame (30) fixed on the machine base (1) and a first shear (31), a second shear (32), a first lifting cylinder (61), and a second lifting cylinder (62) disposed on the shear frame (30). The first shear (31) and the first lifting cylinder (61) constitute the first shearing unit. The first shear (31) is disposed corresponding to the base clamp (21) and is fixedly connected to the piston rod of the first lifting cylinder (61). The first lifting cylinder (61) is fixed on the shear frame (30) and is used to drive the first shear (31) to move toward the base clamp (21). The second shear (32) and the second lifting cylinder (62) constitute the second shearing unit. The second shear (32) is disposed corresponding to the cover clamp (22) and is fixedly connected to the piston rod of the second lifting cylinder (62). The second lifting cylinder (62) is fixed on the shear frame (30) and is used to drive the second shear (32) to move toward the cover clamp (22).

6. The pipe fitting assembly device according to claim 5, characterized in that: The base clamp (21) is provided with a third scissors (33) and a third lifting cylinder (63) for driving the third scissors (33) to move up and down. The output end of the third lifting cylinder (63) is fixed to the top of the fixed base (20) with its output end facing upward. The third scissors (33) and the blades of the first scissors (31) are arranged vertically and vertically respectively.

7. The pipe fitting assembly device according to claim 1, characterized in that: A tilt adjustment mechanism (7) is provided between the base clamp (21) and the fixed seat (20). The tilt adjustment mechanism (7) includes a left tilt adjustment mechanism (71) and a right support mechanism (72) arranged side by side. The left tilt adjustment mechanism (71) includes a multi-stage hinged column (711) and a horizontal tension cylinder (712). The multi-stage hinged column (711) is composed of at least three connecting rods that are hinged from top to bottom. It includes a top connecting rod (7111) at the top, a bottom connecting rod (7112) at the bottom, and a middle connecting rod (7113) in the middle position. The top connecting rod (7111) is connected to the left bottom of the base clamp (21) through a first hinge joint (701). The bottom connecting rod (7112) is connected to the left bottom of the base clamp (21) through a first hinge joint (701). The horizontal tension cylinder (712) is connected to the fixed seat (20) via the second hinge joint (702). The horizontal tension cylinder (712) is fixedly connected to the fixed seat (20) on the left side of the multi-stage hinge column (711). The piston rod of the horizontal tension cylinder (712) extends from left to right to the intermediate connecting rod (7113) and is fixedly connected to it. The right support mechanism (72) includes a vertical frame (721) fixed on the fixed seat (20) and a support rod (722) extending from front to back and installed at the top of the vertical frame (721). The two ends of the support rod (722) are connected to the right bottom of the base clamp (21) via the third hinge joint (703). The base clamp (21) can swing up and down with the support rod (722) as the pivot.

8. The pipe fitting assembly device according to claim 1, characterized in that: The pin pressing mechanism (4) includes a pair of stamping devices (41) and a stamping positioning seat (42). The pair of stamping devices (41) are arranged on the front and rear sides of the base clamp (21) and fixed on the fixed seat (20). The stamping positioning seat (42) is fixed on the fixed seat (20) and located between the stamping device (41) and the base clamp (21). The stamping positioning seat (42) is provided with a stamping positioning hole (420) for the stamping output end of the stamping device (41) to extend into. The stamping positioning hole (420) passes through the body of the stamping positioning seat (42) from front to back and is coaxially aligned with the assembly hole of the base placed on the base clamp (21). The feeding operation area of ​​the pin supply mechanism (5) is located between the stamping positioning seat (42) and the base clamp (21).

9. The pipe fitting assembly device according to claim 8, characterized in that: The pin supply mechanism (5) includes a vibratory feeder (51) and a feeding mechanism (52) disposed between the vibratory feeder (51) and the pin pressing mechanism (4). The feeding mechanism (52) includes a crossbeam (80) and a pair of receiving molds (81), a pair of feeding molds (82), a material distribution component (83), and a pusher cylinder (84) disposed on the crossbeam (80). The crossbeam (80) is fixed on the machine base (1) and extends outward to the left side of the base clamp (21). The pair of receiving molds (81) are distributed front to back and fixed on the crossbeam (80) and are respectively provided with a first insertion hole (801) that passes through from front to back. The first insertion hole (801) is connected to the discharge port of the vibratory feeder (51) through the conveying rail (510). The pair of feeding molds (82) are distributed front to back on the crossbeam (80) and are located on the pair of receiving molds. Between the molds (81), the feeding mold (82) is provided with a second insertion hole (802) that runs through the front and back. The material distribution component (83) is located between the receiving mold (81) and the feeding mold (82) and is used to transfer the pin that enters the first insertion hole (801) to the second insertion hole (802). The feeding mold (82) is correspondingly set with the stamping equipment (41) and can be moved left and right on the cross frame (80) through the second slider slide rail assembly (92). The push cylinder (84) is fixed to the machine base (1) on the left side of the second slider slide rail assembly (92) and is fixedly connected to a pair of feeding molds (82) through the connecting plate (91). The push cylinder (84) is used to drive the feeding mold (82) to move from the receiving mold (81) to between the stamping positioning seat (42) and the base clamp (21).

10. The pipe fitting assembly device according to claim 9, characterized in that: The material distribution assembly (83) includes a fixed frame (830) fixed to the cross frame (80), a material blocking mold (831), a material distribution mold (832), and an ejection mechanism (833) disposed on the fixed frame (830). The material blocking mold (831) and the receiving mold (81) are distributed front to back and fixed on the fixed frame (830). The two sides of the material distribution mold (832) are attached to the receiving mold (81) and the material blocking mold (831). The material distribution mold (832) is provided with a third through hole (803) that communicates with the first through hole (801). The material distribution mold (832) can be moved up and down on the fixed frame (830) by a fourth lifting cylinder (834). The ejection mechanism... The ejection mechanism (833) is located below the receiving mold (81). The ejection mechanism (833) includes an ejection positioning seat (93), an ejection cylinder (94), and an ejector pin (95). The ejection positioning seat (93) is fixed on the cross frame (80) and is located on the front and rear sides of the material distribution mold (832) along with the feeding mold (82). The ejection positioning seat (93) has an ejection positioning hole (930) that runs through the front and rear. The ejector pin (95) moves back and forth in the ejection positioning hole (930) and is fixed to the piston rod of the ejection cylinder (94). The ejection cylinder (94) is fixed on the cross frame (80) and is used to drive the ejector pin (95) to push the pin in the third insertion hole (803) into the second insertion hole (802).

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