Hydraulic cylinder spool tapping tool

Abstract

The present application relates to hydraulic cylinder valve core tapping technical field, specifically puts forward a kind of hydraulic cylinder valve core tapping tool, comprising: support cylinder, sealing support mechanism, clamping locking mechanism and ejecting mechanism, by support cylinder, guide cylinder, sealing support mechanism and ejecting mechanism cooperate, so that the valve core falling in feeding mechanism is directly pushed to the station of clamping locking mechanism along support cylinder and guide cylinder axial one-time, then the valve core is positioned and clamped in the center by clamping locking mechanism, avoid the problem that the valve core is moved along its radial direction in traditional mode and then moved along its axial direction, because there are more moving directions, deviation occurs between valve core and clamping locking mechanism, in turn, the clamping of clamping locking mechanism to valve core is not accurate, and the quality of valve core tapping is affected;When clamping locking mechanism clamps valve core, the axial ends of valve core are pressed and fixed by limiting piece and ejecting mechanism, improve the stability of valve core fixation and tapping quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic cylinder valve core tapping, and specifically provides a hydraulic cylinder valve core tapping tool. BACKGROUND

[0002] The hydraulic cylinder valve core is a core control element in the hydraulic system, and its performance directly affects the motion accuracy, response speed and system stability of the hydraulic cylinder. Tapping the valve core of the hydraulic cylinder is a key process for ensuring reliable connection of the valve body and the pipeline and the actuator.

[0003] At present, when the valve core is tapped, the valve cores are uniformly arranged by the feeding equipment and then sequentially fall, and then the valve cores are moved to be aligned with the clamping and fixing mechanism by the moving seat and are fed into the clamping and fixing mechanism for fixation. The clamping and fixing mechanism clamps and fixes the end of the valve core. Then, the tapping mechanism is moved to be aligned with the clamping and fixing mechanism so as to tap the valve core. Finally, when the tapping mechanism is moved away, the clamping and fixing mechanism ejects the tapped valve core.

[0004] However, when the valve core is tapped by such a tapping tool, the moving seat and the tapping mechanism need to be moved constantly, which may cause inaccurate alignment of the clamping and fixation of the valve core and the tapping mechanism, affecting the quality of the valve core tapping. In addition, the fixation of the valve core during tapping only clamps one end of the valve core, the clamping distance is short, the stability is poor, and when subjected to the tapping axial force of the tapping mechanism, the valve core may shake, thereby affecting the quality of the valve core tapping. SUMMARY

[0005] In view of the above problems, the present application provides a hydraulic cylinder valve core tapping tool to solve the technical problems in the related art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a hydraulic cylinder valve core tapping tool, comprising: a base, a feeding mechanism, a supporting cylinder, a sealing supporting mechanism, a clamping and locking mechanism and an ejection mechanism, a supporting seat and a tapping mechanism are installed on the top of the base, the feeding mechanism is installed on the supporting seat, the supporting cylinder is horizontally installed on the top of the supporting seat through a fixing seat, a feeding port is formed in one end of the top side wall of the supporting cylinder, and a guide cylinder is installed at the other end, the guide cylinder is concentric with the supporting cylinder and has a discharge port formed in the lower side wall, and a limiting piece for limiting the valve core is arranged at the end of the guide cylinder away from the supporting cylinder.

[0007] The sealing supporting mechanism and the clamping and locking mechanism are both installed on the guide cylinder, the ejection mechanism is installed on the base and located on the side close to the feeding port, the sealing supporting mechanism is used for closing and opening the discharge port and supporting the valve core when entering the guide cylinder, and the clamping and locking mechanism is used for clamping the valve core entering the guide cylinder.

[0008] The limiting piece is annular structure installed at the end of the material guiding cylinder and with the lower side wall opening, the inner diameter of the limiting piece is smaller than the outer diameter of the threaded end of the valve core and larger than the hole diameter of the threaded hole of the valve core, thereby limiting the movement of the valve core and preventing the valve core from moving out of the material guiding cylinder.

[0009] The threading mechanism and the feeding mechanism are existing devices, the feeding mechanism is used for arranging the valve core and automatically feeding the valve core into the supporting cylinder from the feeding port, and the threading mechanism is used for threading the valve core fixed by the clamping and locking mechanism.

[0010] In a possible implementation, the sealing and supporting mechanism comprises two symmetrically arranged receiving grooves formed on the feeding port, the receiving grooves are slidably connected with guide frames, the opposite ends of the two guide frames are respectively provided with supporting strips, the supporting strips are L-shaped with the vertical section away from the supporting cylinder, and a return spring one is arranged between the guide frame and the outer wall of the material guiding cylinder.

[0011] In a possible implementation, the side wall of one of the supporting strips is provided with uniformly arranged insertion slots, the side wall of the other supporting strip is provided with insertion rods corresponding to the insertion slots, the insertion slots and the insertion rods are matched, and thus the two supporting strips are inserted and supported when abutting against each other under the elastic force of the return spring one, thereby preventing the supporting strips from being automatically opened under the gravity pressing of the valve core.

[0012] In a possible implementation, the clamping and locking mechanism comprises a plurality of accommodating grooves uniformly arranged along the circumferential direction of the inner wall of the material guiding cylinder, a clamping seat slidably arranged along the radial direction of the material guiding cylinder is connected to the accommodating grooves, a return spring one is arranged between the clamping seat and the accommodating grooves, a connecting rod slidably penetrating through the material guiding cylinder is arranged on the clamping seat, a wedge-shaped block is arranged on the connecting rod, a pushing half-ring is slidably arranged on the material guiding cylinder, the inner annular surface of the pushing half-ring is tapered and matched with the wedge-shaped block, a plurality of uniformly arranged rolling balls are arranged on the wedge-shaped block, and a return spring two is arranged between the pushing half-ring and the material guiding cylinder.

[0013] In a possible implementation, the side of the clamping seat close to the axis of the material guiding cylinder is concave-convex matched with the side wall of the valve core, thereby increasing the contact surface between the clamping seat and the side wall of the valve core, and thus improving the stability of the clamping seat in fixing the valve core.

[0014] In a possible implementation, the side wall of the guide frame is provided with a plug-in lock assembly for locking the pushing half-ring, the plug-in lock assembly comprises a mounting groove formed on the guide frame, a plug-in column is slidably connected in the mounting groove, a return spring three is arranged between the plug-in column and the mounting groove, and the outer annular surface of the pushing half-ring is provided with an insertion hole and a blocking piece.

[0015] In a possible implementation mode, the top locking portion comprises a moving guide groove I formed in the side wall of the supporting cylinder and communicated with the supporting cylinder, the moving guide groove I is composed of two staggered I-shaped grooves and an arc-shaped through groove communicating the two I-shaped grooves, the I-shaped groove of the moving guide groove I extends to the guide cylinder, the guide cylinder is slidably connected with a connecting seat, a triangular connecting frame is arranged between the connecting seat and the pushing half-ring, an L-shaped abutting rod for pushing the connecting seat is arranged on the pushing column, and the L-shaped abutting rod slidably penetrates the moving guide groove I.

[0016] In a possible implementation mode, the opening driving portion comprises a pushing rod arranged at one end of the supporting strip close to the supporting cylinder, a fixing frame slidably connected with the pushing rod is arranged on the fixing seat, a traction rod is slidably connected with the fixing seat, a trapezoidal block is arranged at the end of the traction rod, the traction rod is L-shaped, the two pushing rods respectively abut against two inclined surfaces of the trapezoidal block, a return spring three is arranged between the trapezoidal block and the fixing frame, and a traction assembly for pulling the traction rod is arranged on the pushing column.

[0017] In a possible implementation mode, the traction assembly comprises a moving guide groove II formed in the side wall of the guide cylinder, the moving guide groove II is identical in shape with the moving guide groove I, a pull rod slidably penetrating the moving guide groove II is arranged on the side wall of the pushing column, a rotating plate is hinged at the end of the pull rod, and the rotating plate can only rotate away from the limiting piece about the end of the pull rod.

[0018] In a possible implementation mode, the fixing seat and the supporting seat are jointly provided with a buffer material guiding assembly, the buffer material guiding assembly is located below the guide cylinder, the buffer material guiding assembly is composed of an inclined plate located below the discharging port and connected with the fixing seat and the supporting seat and a folding plate, and a collecting box for collecting the valve core is further arranged on the base.

[0019] The above one or more technical solutions in the embodiment of the present application have at least one of the following beneficial effects: 1. The hydraulic cylinder valve core tapping tool designed in the present application cooperates with the supporting cylinder, the guide cylinder, the sealing supporting mechanism and the material pushing mechanism, so that the valve core falling from the feeding mechanism is directly pushed to the work station of the clamping and locking mechanism along the axial direction of the supporting cylinder and the guide cylinder at one time, and then the valve core is centrally positioned and clamped by the clamping and locking mechanism, thereby avoiding the problem that in the traditional mode, the valve core is moved along the radial direction and then moved along the axial direction, the movement direction is more, the alignment between the valve core and the clamping and locking mechanism deviates, and then the clamping and locking mechanism clamps the valve core inaccurately, which affects the valve core tapping quality; meanwhile, when the clamping and locking mechanism clamps the valve core, the side wall of the valve core is clamped comprehensively, and the axial ends of the valve core are abutted and fixed by the limiting piece and the material pushing mechanism, so that the stability of the valve core fixing and the tapping quality of the valve core are greatly improved.

[0020] 2. When the limiting part abuts against the valve core in the application, the material pushing mechanism drives the clamping and locking mechanism to clamp and fix the valve core, and at the same time, the sealing support mechanism locks the clamping and locking mechanism through the mortise lock assembly, thereby improving the stability of the clamping and locking mechanism in fixing the valve core.

[0021] 3. The application drives the sealing support mechanism to open the material discharge port when the material pushing mechanism resets and moves, so that the valve core after tapping is automatically discharged from the material discharge port, thereby improving the convenience of discharging the valve core after tapping, and realizing the integrated driving of the valve core feeding and discharging. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings.

[0023] Figure 1 is a schematic diagram of the overall three-dimensional structure of the application.

[0024] Figure 2 is a schematic diagram of the overall three-dimensional structure of the application. Figure 1

[0025] Figure 3 is a first partial three-dimensional structure schematic diagram of the application.

[0026] Figure 4 is a second partial three-dimensional structure schematic diagram of the application.

[0027] Figure 5 is a main sectional view of Figure 1

[0028] Figure 6 is a partial enlarged schematic diagram of B of Figure 5

[0029] Figure 7 is a top sectional structure schematic diagram of the mortise lock assembly of the application.

[0030] Figure 8 is a structure schematic diagram of the buffer material guiding assembly of the application.

[0031] Reference signs:

[0032] ​​​1, base; 2, support seat; 20, buffer guide assembly; 3, tapping mechanism; 4, feeding mechanism; 5, support cylinder; 50, fixing seat; 51, feeding port; 52, guide cylinder; 53, discharging port; 54, limiting piece; 6, sealing support mechanism; 60, storage groove; 61, support strip; 610, insertion groove; 611, insertion rod; 62, return spring one; 63, guide frame; 630, insertion column; 631, reset spring three; 632, baffle; 7, clamping locking mechanism; 70, containing groove; 71, clamping seat; 72, reset spring one; 73, connecting rod; 74, wedge block; 75, extrusion half ring; 76, reset spring two; 8, ejecting mechanism; 80, air cylinder; 81, push column; 82, push rod; 83, return spring two; 84, limiting rod; 85, top locking part; 850, moving guide groove one; 851, triangular connecting frame; 852, connecting seat; 853, L-shaped push rod; 86, opening driving part; 860, fixing frame; 861, push rod; 862, traction rod; 863, trapezoidal block; 864, return spring three; 870, moving guide groove two; 871, pull rod; 872, rotating plate; 9, valve core. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , a tapping tool for hydraulic cylinder valve core, comprising: base 1, feeding mechanism 4, support cylinder 5, sealing support mechanism 6, clamping locking mechanism 7 and ejecting mechanism 8, the top of base 1 is provided with support seat 2 and tapping mechanism 3, feeding mechanism 4 is installed on support seat 2, support cylinder 5 is horizontally installed on the top of support seat 2 through fixing seat 50, one end of support cylinder 5 is provided with feeding port 51 on the top side wall, and the other end is provided with guide cylinder 52, guide cylinder 52 is concentric with support cylinder 5 and is provided with discharging port 53 on the lower side wall, and the end of guide cylinder 52 away from support cylinder 5 is provided with limiting piece 54 for limiting valve core 9.

[0036] Referring to Figure 1 , Figure 2 and Figure 3The sealing supporting mechanism 6 and the clamping locking mechanism 7 are both installed on the guide cylinder 52, and the ejecting mechanism 8 is installed on the base 1 and located at one side close to the feeding port 51, the sealing supporting mechanism 6 is used for closing and opening the discharging port 53 and supporting the valve core 9 when the valve core 9 enters the guide cylinder 52, and the clamping locking mechanism 7 is used for clamping the valve core 9 entering the guide cylinder 52.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the limiting piece 54 is in the form of a ring installed at the end of the guide cylinder 52 and with the lower side wall open, the inner diameter of the limiting piece 54 is smaller than the outer diameter of the threaded end of the valve core 9 and larger than the hole diameter of the threaded hole of the valve core 9, so as to limit the movement of the valve core 9 and prevent the valve core 9 from moving out of the guide cylinder 52.

[0038] The threading mechanism 3 and the feeding mechanism 4 are both existing devices, the feeding mechanism 4 is used for arranging the valve core 9 and automatically feeding the valve core 9 into the supporting cylinder 5 from the feeding port 51, and the threading mechanism 3 is used for threading the valve core 9 after the valve core 9 enters the guide cylinder 52 and is fixed by the clamping locking mechanism 7.

[0039] When working, the valve core 9 is automatically fed into the supporting cylinder 5 by the feeding mechanism 4, the ejecting mechanism 8 drives the valve core 9 in the supporting cylinder 5 to move towards the guide cylinder 52, at this time, the discharging port 53 is closed under the self-adaptive force of the sealing supporting mechanism 6, when the valve core 9 enters the guide cylinder 52, the sealing supporting mechanism 6 supports the valve core 9, when the valve core 9 abuts against the limiting piece 54, the ejecting mechanism 8 drives the clamping locking mechanism 7 to clamp and fix the valve core 9, at the same time, the sealing supporting mechanism 6 locks the clamping locking mechanism 7, thereby improving the stability of the clamping locking mechanism 7 fixing the valve core 9.

[0040] Through the cooperation of the sealing supporting mechanism 6, the clamping locking mechanism 7 and the ejecting mechanism 8, after the valve core 9 enters the supporting cylinder 5, the valve core 9 moves along the axis of the supporting cylinder 5 and the guide cylinder 52, and then is centrally positioned and fixed by the clamping of the clamping locking mechanism 7, so that the valve core 9 can be accurately concentrically positioned with the threading mechanism 3, greatly improving the accuracy of the valve core 9 and the threading mechanism 3 during threading and the quality of threading.

[0041] When the threading of the valve core 9 is completed, the ejecting mechanism 8 is reset and moved to drive the sealing supporting mechanism 6 to open the discharging port 53, so that the valve core 9 after threading is automatically discharged from the discharging port 53, thereby improving the convenience of feeding and discharging during threading of the valve core 9.

[0042] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 6The sealing support mechanism 6 comprises two symmetrically arranged receiving grooves 60 formed on the discharge port 53, a guide frame 63 is slidably connected on the receiving groove 60, and a support strip 61 is installed on the opposite end of the two guide frames 63. The support strip 61 is L-shaped with the vertical section away from the support cylinder 5. A return spring I 62 is installed between the guide frame 63 and the outer wall of the guide cylinder 52.

[0043] Referring to Figure 6 The side wall of one of the support strips 61 is provided with uniformly arranged insertion grooves 610, and the side wall of the other support strip 61 is provided with insertion rods 611 corresponding to the insertion grooves 610. The insertion grooves 610 and the insertion rods 611 are matched, so that the two support strips 61 are inserted and supported when they are tightly pressed by the elastic force of the return spring I 62, preventing the support strips 61 from being automatically opened under the pressure of the valve core 9.

[0044] When the valve core 9 enters the guide cylinder 52, the support strip 61 supports the valve core 9 until the end of the valve core 9 abuts against the vertical section of the support strip 61. At this time, the valve core 9 is no longer moved under the limiting action of the limiting part 54 and the vertical section of the support strip 61. Then the material pushing mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9 and position the axis, and then the tapping processing is carried out.

[0045] Referring to Figure 2 , Figure 3 and Figure 6 The clamping and locking mechanism 7 comprises a containing groove 70 formed on the inner wall of the guide cylinder 52 and uniformly arranged along the circumference of the guide cylinder 52. A clamping seat 71 is slidably connected along the radial direction of the guide cylinder 52 between the containing groove 70. A return spring I 72 is installed between the clamping seat 71 and the containing groove 70. A connecting rod 73 is slidably installed on the clamping seat 71 and penetrates the guide cylinder 52. A wedge-shaped block 74 is installed on the connecting rod 73. A pushing half-ring 75 is slidably sleeved on the guide cylinder 52. The inner ring surface of the pushing half-ring 75 is tapered and matched with the wedge-shaped block 74. Uniformly arranged balls are installed on the wedge-shaped block 74. A return spring II 76 is installed between the pushing half-ring 75 and the guide cylinder 52.

[0046] Referring to Figure 6 The side of the clamping seat 71 close to the axis of the guide cylinder 52 is concave-convex matched with the side wall of the valve core 9, thereby increasing the contact surface between the clamping seat 71 and the side wall of the valve core 9, and improving the stability of the clamping seat 71 fixing the valve core 9.

[0047] When the clamping and locking mechanism 7 is clamped and fixed to the valve core 9, the ejector mechanism 8 drives the pushing half ring 75 to move, and the pushing half ring 75 extrudes and pushes the wedge block 74 in the moving process. The ball on the wedge block 74 is used to reduce the friction when the pushing half ring 75 pushes the wedge block 74. The wedge block 74 pushes the clamping seat 71 to move to the side wall of the valve core 9 through the connecting rod 73. A plurality of clamping seats 71 move to the valve core 9 at the same time to axially center the valve core 9. Until the plurality of clamping seats 71 clamp and fix the valve core 9, the valve core 9 is axially limited by the ejector mechanism 8 and the limiting piece 54 on both sides, and the side wall is clamped and fixed. The stability of the valve core 9 is greatly improved.

[0048] Referring to Figure 3 and Figure 7 , the side wall of the guide frame 63 is provided with a plug-in assembly for locking the pushing half ring 75. The plug-in assembly includes a mounting groove formed in the guide frame 63, a plug-in column 630 is slidably connected in the mounting groove, and a reset spring three 631 is installed between the plug-in column 630 and the mounting groove. The outer ring surface of the pushing half ring 75 is provided with a plug hole and a baffle 632.

[0049] In the initial state, the side wall of the baffle 632 abuts against the end of the plug-in column 630. The end of the plug-in column 630 is provided with a ball for reducing the friction between the plug-in column 630 and the baffle 632. When the pushing half ring 75 drives the baffle 632 to move, the ball on the plug-in column 630 rolls on the baffle 632. When the pushing half ring 75 abuts against the wedge block 74 and no longer moves, the plug-in column 630 is aligned with the plug hole. The plug-in column 630 is inserted into the plug hole under the elastic force of the reset spring three 631, thereby locking the position of the pushing half ring 75, and further improving the stability of the clamping and locking mechanism 7 clamping and fixing the valve core 9.

[0050] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The top mechanism 8 comprises a cylinder 80 rotatably installed on the supporting seat 2, a rotary driving source for driving the cylinder 80 to rotate is also installed on the supporting seat 2, a pushing column 81 slidably connected with the inner wall of the supporting cylinder 5 is installed on the telescopic end of the cylinder 80, a spring slot is formed on the end of the pushing column 81 away from the cylinder 80, a pushing rod 82 is slidably connected in the spring slot, a return spring 83 is installed between the pushing rod 82 and the spring slot, a limiting rod 84 for limiting the pushing rod 82 in the spring slot is installed on the pushing column 81, a top locking part 85 and an opening driving part 86 are jointly installed between the pushing column 81 and the supporting cylinder 5 and the material guiding cylinder 52, the pushing column 81 pushes the pushing and extruding half ring 75 through the top locking part 85 to drive the clamping seat 71 to fix the valve core 9, and the pushing column 81 moves to the side away from the material guiding cylinder 52 to drive the two supporting strips 61 to move to open the discharge port 53 through the opening driving part 86.

[0051] When the cylinder 80 pushes the pushing column 81 and the pushing rod 82 to move to push the valve core 9 falling in the supporting cylinder 5 to the material guiding cylinder 52, the valve core 9 at the lowermost side in the feeding mechanism 4 falls on the pushing column 81, which prevents the next valve core 9 from being stuck in the feeding port 51 to cause the pushing column 81 and the pushing rod 82 to be difficult to reset, the pushing column 81 and the pushing rod 82 push the valve core 9 abutting against them to move into the material guiding cylinder 52, when the valve core 9 abuts against the limiting piece 54 and the vertical section of the supporting strip 61, the rotary driving source (such as a motor) drives the cylinder 80, the pushing column 81 and the pushing rod 82 to rotate and drives the pushing and extruding half ring 75 to move through the top locking part 85, so that the clamping seat 71 clamps and fixes the valve core 9.

[0052] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the top locking part 85 comprises a moving guide slot one 850 formed in the side wall of the supporting cylinder 5 and communicating with the side wall, the moving guide slot one 850 is composed of two staggered one-shaped slots and an arc-shaped through slot connecting the two one-shaped slots, the one-shaped slot of the moving guide slot one 850 extends to the material guiding cylinder 52, a connecting seat 852 is slidably connected on the material guiding cylinder 52, a triangular connecting frame 851 is installed between the connecting seat 852 and the pushing and extruding half ring 75, an L-shaped abutting rod 853 for pushing the connecting seat 852 is installed on the pushing column 81, and the L-shaped abutting rod 853 slidably penetrates the moving guide slot one 850.

[0053] When the valve core 9 is in abutment with the limiting piece 54, the rotary driving source drives the push column 81 and the abutting rod 82 to rotate, the L-shaped abutting rod 853 on the push column 81 rotates on the arc-shaped through slot of the moving guide slot one 850, so that the segment of the L-shaped abutting rod 853 perpendicular to the connecting seat 852 is rotated to be aligned with the connecting seat 852, then the cylinder 80 continues to push the push column 81, the push column 81 extrudes the return spring two 83 and drives the L-shaped abutting rod 853 to push the connecting seat 852 to move, the L-shaped abutting rod 853 moves along the corresponding character-shaped slot on the moving guide slot one 850, the connecting seat 852 pushes the extrusion half ring 75 through the triangular connecting frame 851, so that the connecting seat 852 pushes the extrusion half ring 75 through the uniformly dispersed force, the extrusion half ring 75 moves to drive the clamping seat 71 to clamp and fix the valve core 9, at this time, the abutting rod 82 is in abutment with the limiting rod 84, so that the valve core 9 can be accurately positioned concentrically with the tapping mechanism 3, and the accuracy of the valve core 9 and the tapping mechanism 3 during tapping of the valve core 9 and the quality of tapping are greatly improved.

[0054] When the valve core 9 tapping processing is completed, the cylinder 80 drives the push column 81 and the abutting rod 82 to move out of the material guiding barrel 52, the opening driving part 86 drives the supporting strip 61 to move to open the material discharging port 53, and the plug-in lock assembly unlocks the extrusion half ring 75, and the extrusion half ring 75 is reset under the elastic force of the return spring two 76, and the processed valve core 9 is automatically discharged from the material discharging port 53.

[0055] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the opening driving part 86 comprises push rods 861 installed on one end of the supporting strip 61 close to the supporting barrel 5, a fixed frame 860 in sliding connection with the push rods 861 is installed on the fixed seat 50, a traction rod 862 in sliding connection with the fixed seat 50 is installed on the fixed seat 50, a trapezoidal block 863 is installed at the end of the traction rod 862, the traction rod 862 is L-shaped, the two push rods 861 are in abutment with the two inclined surfaces of the trapezoidal block 863 respectively, a return spring three 864 is installed between the trapezoidal block 863 and the fixed frame 860, and a traction assembly for pulling the traction rod 862 is installed on the push column 81.

[0056] Referring to Figure 4 and Figure 6 , the traction assembly comprises a moving guide slot two 870 formed in the side wall of the material guiding barrel 52, the moving guide slot two 870 is the same as the moving guide slot one 850 in shape, a pull rod 871 in sliding connection with the moving guide slot two 870 is installed on the side wall of the push column 81, a rotating plate 872 is hinged at the end of the pull rod 871, and the rotating plate 872 can only rotate to the side away from the limiting piece 54 around the end of the pull rod 871.

[0057] When the push column 81 and the push rod 82 rotate, the pull rod 871 rotates along the arc-shaped through groove in the moving guide groove two 870, and at this time, the pull rod 871 and the rotating plate 872 are moved to the side of the vertical section of the traction rod 862 close to the valve core 9, and continue to move with the push column 81; when the cylinder 80 drives the push column 81 to move out of the material guiding barrel 52, the pull rod 871 moves along the one-shaped groove of the moving guide groove two 870, and when the rotating plate 872 and the vertical section of the traction rod 862 abut, the pull rod 871 drives the traction rod 862 and the trapezoidal block 863 to move through the rotating plate 872, the trapezoidal block 863 extrudes the push rod 861 on both sides, the push rod 861 moves along the fixed frame 860 and drives the supporting strip 61 to move to the storage groove 60, so as to open the discharge port 53, at the same time, the L-shaped abutting rod 853 moves along the moving guide groove one 850 to the side away from the connecting seat 852, the connecting seat 852, the triangular connecting frame 851 and the extrusion half ring 75 move to the supporting barrel 5 under the elastic force of the return spring two 76, so that the extrusion half ring 75 no longer extrudes the wedge-shaped block 74, the wedge-shaped block 74 resets under the elastic force of the return spring one 72, so as to drive the clamping seat 71 to no longer clamp the valve core 9, the clamping seat 71 releases the valve core 9, and the valve core 9 automatically falls downward under the action of its own gravity and is discharged.

[0058] Referring to Figure 1 , Figure 3 and Figure 8 , the fixed seat 50 and the supporting seat 2 are jointly provided with a buffer material guiding assembly 20, the buffer material guiding assembly 20 is located below the material guiding barrel 52, and the buffer material guiding assembly 20 is composed of an inclined plate and a folded plate which are located below the discharge port 53 and connected with the fixed seat 50 and the supporting seat 2, and the base 1 is further provided with a collecting box for collecting the valve core 9, when the valve core 9 falls, it first falls on the inclined plate, and then rolls onto the folded plate and falls into the collecting box along the folded plate, so as to reduce the impact force when the valve core 9 falls.

[0059] Referring to Figures 1-8 , in specific work, the valve core 9 automatically enters the supporting barrel 5 through the feeding mechanism 4, the valve core 9 in the supporting barrel 5 is pushed by the material pushing mechanism 8 to move to the material guiding barrel 52, at this time, the discharge port 53 is closed under the self-adaptive force of the sealing supporting mechanism 6, when the valve core 9 enters the material guiding barrel 52, the sealing supporting mechanism 6 supports the valve core 9, when the valve core 9 abuts against the limiting piece 54, the material pushing mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9, at the same time, the sealing supporting mechanism 6 locks the clamping and locking mechanism 7, thereby improving the stability of the clamping and locking mechanism 7 fixing the valve core 9.

[0060] Then the tapping mechanism 3 taps the valve core 9, when the valve core 9 tapping is completed, the cylinder 80 drives the push column 81 and the push rod 82 to move out of the material guiding barrel 52, the pull rod 871 drives the traction rod 862 and the trapezoidal block 863 to move, the trapezoidal block 863 extrudes the push rod 861 on both sides, the push rod 861 moves along the fixed frame 860 and drives the supporting strip 61 to move to the storage slot 60, so as to open the discharge port 53, at the same time, the mortise lock assembly unlocks the pushing half ring 75, the pushing half ring 75 is reset under the elastic force of the reset spring two 76, the clamping seat 71 is reset and no longer clamps the valve core 9, so that the valve core 9 after tapping is automatically discharged from the discharge port 53, thereby improving the convenience of feeding and discharging when tapping the valve core 9.

[0061] In the description of the present application, it should be understood that the terms "long", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0062] In the description of the present application, it should be understood that the terms "set", "connected", "mounted", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] The embodiments of the specific implementation are the preferred embodiments of the present application, not limited to the protection scope of the present application, so that any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tapping fixture for a hydraulic cylinder valve core, characterized in that, include: The base has a support seat and a tapping mechanism on its top. The feeding mechanism, located on the support seat, is used to arrange and feed the valve cores; The support cylinder is horizontally mounted on the top of the support base via a fixed seat. One end of the support cylinder has a feed inlet on its top side wall, and the other end has a guide cylinder. The guide cylinder is concentric with the support cylinder and has a discharge outlet on its lower side wall. The end of the guide cylinder away from the support cylinder is equipped with a limiting component to limit the valve core. The sealing and supporting mechanism is located at the lower opening of the guide cylinder. It is used to close and open the discharge port and to support the valve core when it enters the guide cylinder. A clamping and locking mechanism is provided on the guide cylinder and is used to clamp and fix the valve core entering the guide cylinder; The top feeding mechanism, located on the base and near the feed inlet, is used to push the valve core that falls from the feeding mechanism into the support cylinder into the guide cylinder. At the same time, the top feeding mechanism also drives the clamping and locking mechanism to clamp the valve core and drives the sealing support mechanism to open the discharge port when the top feeding mechanism resets after the valve core tapping is completed. The sealing support mechanism includes two symmetrically arranged receiving slots on the discharge port, and guide frames are slidably connected to the receiving slots. Support strips are installed at the opposite ends of the two guide frames. The support strips are L-shaped with the vertical section away from the support cylinder. A return spring is installed between the guide frame and the outer wall of the guide cylinder. The clamping and locking mechanism includes receiving grooves evenly arranged along the circumference of the inner wall of the guide cylinder, a clamping seat that slides radially along the guide cylinder connected to the receiving groove, a return spring 1 installed between the clamping seat and the receiving groove, a connecting rod that slides through the guide cylinder installed on the clamping seat, a wedge block installed on the connecting rod, a pushing half-ring that slides on the guide cylinder, the inner ring surface of the pushing half-ring being conical to cooperate with the wedge block, and a return spring 2 installed between the pushing half-ring and the guide cylinder. The guide frame is equipped with a locking assembly for locking the pushing half ring. The locking assembly includes a mounting groove on the guide frame, a pin slidably connected in the mounting groove, a return spring between the pin and the mounting groove, and a hole with a baffle plate installed on the outer ring surface of the pushing half ring. The top material mechanism includes a cylinder rotatably mounted on a support base. A rotary drive source for driving the cylinder to rotate is also mounted on the base. A push column is mounted on the telescopic end of the cylinder and is slidably connected to the inner wall of the support cylinder. A spring groove is provided at the end of the push column away from the cylinder. A push rod is slidably connected to the spring groove. A return spring is installed between the push rod and the spring groove. A top locking part and an opening drive part are installed together between the push column, the support cylinder, and the guide cylinder. The push column pushes the push half-ring drive clamping seat to fix the valve core through the top locking part. When the push column moves to the side away from the guide cylinder, it drives the two support bars to move through the opening drive part to open the discharge port.

2. The hydraulic cylinder valve core tapping fixture according to claim 1, characterized in that: The top locking part includes a movable guide groove 1 that is opened on the side wall of the supporting cylinder and communicates with it. The movable guide groove 1 consists of two staggered straight grooves and an arc-shaped through groove that connects the two straight grooves. The straight groove of the movable guide groove 1 extends to the guide cylinder. A connecting seat is slidably connected to the guide cylinder. A triangular connecting frame is installed between the connecting seat and the pushing half ring. An L-shaped push rod for pushing the connecting seat is installed on the push column. The L-shaped push rod slides through the movable guide groove 1.

3. The hydraulic cylinder valve core tapping fixture according to claim 2, characterized in that: The opening drive unit includes a push rod installed at one end of the support bar near the support cylinder, a fixed frame slidably connected to the push rod on the fixed base, a traction rod slidably connected to the fixed base, a trapezoidal block installed at the end of the traction rod, the traction rod being L-shaped, two push rods respectively abutting against the two inclined surfaces of the trapezoidal block, a return spring installed between the trapezoidal block and the fixed frame, and a traction assembly for pulling the traction rod installed on the push column.

4. The hydraulic cylinder valve core tapping fixture according to claim 1, characterized in that: One of the support bars has evenly arranged slots on its side wall, and the other support bar has a corresponding insert rod on its side wall, with the slots and insert rods engaging with each other.

5. The hydraulic cylinder valve core tapping fixture according to claim 3, characterized in that: The traction assembly includes a second movable guide groove opened on the side wall of the guide cylinder. The second movable guide groove has the same shape as the first movable guide groove. A pull rod that slides through the second movable guide groove is installed on the side wall of the push column. A rotating plate is hinged to the end of the pull rod. The rotating plate can only rotate around the end of the pull rod to the side away from the limiting member.

6. The hydraulic cylinder valve core tapping fixture according to claim 1, characterized in that: The clamping seat has a concave-convex shape on the side near the axis of the guide cylinder that matches the side wall of the valve core.

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