Hydraulic cylinder valve element tapping tool

Abstract

The invention relates to the technical field of hydraulic cylinder valve element tapping, in particular to a hydraulic cylinder valve element tapping tool which comprises a bearing barrel, a sealing bearing mechanism, a clamping locking mechanism and a material ejecting mechanism. The valve element falling from the feeding mechanism is directly pushed to a station of the clamping and locking mechanism at a time in the axial direction of the bearing cylinder and the material guiding cylinder, then the valve element is centered, positioned and clamped through the clamping and locking mechanism, and the situation that in a traditional mode, the valve element is driven to move in the radial direction and then move in the axial direction, and due to the fact that the moving directions are many, the valve element is not prone to falling off is avoided. The problem that the tapping quality of the valve core is affected due to inaccurate clamping of the valve core by the clamping and locking mechanism caused by deviation of alignment between the valve core and the clamping and locking mechanism is solved; when the clamping and locking mechanism clamps the valve element, the two axial ends of the valve element are fixed in an abutting mode through the limiting piece and the material ejecting mechanism, and the fixing stability and the tapping quality of the valve element are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tapping for hydraulic cylinder valve cores, and specifically provides a tapping tooling for hydraulic cylinder valve cores. Background Art

[0002] The hydraulic cylinder valve core is a core control component in the hydraulic system, and its performance directly affects the movement accuracy, response speed and system stability of the hydraulic cylinder. Tapping the valve core of the hydraulic cylinder is a key process to ensure the reliable connection between the valve body, pipeline and actuator.

[0003] Currently, when tapping the valve core, the valve cores are uniformly arranged and sequentially dropped through the feeding device, and then the moving seat drives the valve core to move to align with the clamping and fixing mechanism and send it onto the clamping and fixing mechanism for fixing. The clamping and fixing mechanism clamps and fixes the end of the valve core. Then, the tapping mechanism is moved to align with the clamping and fixing mechanism to tap the valve core. Finally, when the tapping mechanism moves away, the clamping and fixing mechanism ejects the tapped valve core for discharging.

[0004] However, when such a valve core tapping tooling taps the valve core, the moving seat and the tapping mechanism need to be continuously moved, which easily causes inaccurate alignment between the clamping and fixing of the valve core and the tapping mechanism, affecting the quality of valve core tapping. Moreover, the above-mentioned fixing during valve core tapping only clamps the outer wall of one end of the valve core, with a short clamping distance and poor stability. When subjected to the axial tapping force of the tapping mechanism on the valve core, it is prone to shaking problems, further affecting the quality of valve core tapping. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present invention provide a tapping tooling for hydraulic cylinder valve cores to solve the technical problems in the related art.

[0006] To achieve the above object, the embodiments of the present invention provide the following technical solutions: A tapping tooling for hydraulic cylinder valve cores, comprising: a base, a feeding mechanism, a supporting cylinder, a sealing and supporting mechanism, a clamping and locking mechanism and a pushing 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. An inlet is opened on the side wall of the top of one end of the supporting cylinder, and a guiding cylinder is installed at the other end. The guiding cylinder is concentric with the supporting cylinder and has a discharging port opened on the lower side wall. A limiting member for limiting the valve core is provided at the end of the guiding cylinder away from the supporting cylinder.

[0007] The sealing and supporting mechanism and the clamping and locking mechanism are both installed on the guiding cylinder. The pushing mechanism is installed on the base and is located on the side close to the inlet. The sealing and supporting mechanism is used to close and open the discharging port and support the valve core when it enters the guiding cylinder. The clamping and locking mechanism is used to clamp the valve core entering the guiding cylinder.

[0008] The limiting member is in an annular structure installed at the end of the material guiding cylinder with an opening on the lower side wall. The inner diameter of the limiting member is smaller than the outer diameter of the tapping end of the valve core and larger than the aperture of the tapping hole of the valve core, so as to limit the movement of the valve core and prevent the valve core from moving out of the material guiding cylinder.

[0009] The tapping mechanism and the feeding mechanism are both existing devices. The feeding mechanism is used for arranging the valve cores and automatically entering the supporting cylinder from the feeding port, and the tapping mechanism is used for tapping the valve cores that enter the material guiding cylinder and are fixed by the clamping and locking mechanism.

[0010] In a possible implementation manner, the sealing and supporting mechanism includes two symmetrically arranged receiving grooves opened on the discharging port. A guiding frame is slidably connected to the receiving grooves. Supporting strips are installed at the opposite ends of the two guiding frames. The supporting strips are in an L shape with the vertical section away from the supporting cylinder. A first return spring is installed between the guiding frame and the outer wall of the material guiding cylinder.

[0011] In a possible implementation manner, slots are evenly arranged on the side wall of one of the supporting strips, and inserting rods corresponding to the slots one by one are installed on the side wall of the other supporting strip. The slots and the inserting rods are matched, so that when the two supporting strips are pressed against each other under the elastic force of the first return spring, they are inserted and supported with each other, preventing the supporting strips from automatically opening under the gravity pressing action of the valve core.

[0012] In a possible implementation manner, the clamping and locking mechanism includes receiving grooves evenly arranged along the circumferential direction on the inner wall of the material guiding cylinder. A clamping seat that slides along the radial direction of the material guiding cylinder is connected to the receiving grooves. A first reset spring is installed between the clamping seat and the receiving grooves. A connecting rod that slides through the material guiding cylinder is installed on the clamping seat. A wedge block is installed on the connecting rod. A pushing half-ring is slidably sleeved on the material guiding cylinder. The inner ring surface of the pushing half-ring is in a conical shape that matches the wedge block. Uniformly arranged balls are installed on the wedge block. A second reset spring is installed between the pushing half-ring and the material guiding cylinder.

[0013] In a possible implementation manner, the side of the clamping seat close to the axis of the material guiding cylinder is in a concave-convex shape that matches the side wall of the valve core, so as to increase the contact surface between the clamping seat and the side wall of the valve core, and further improve the stability of the clamping seat for fixing the valve core.

[0014] In a possible implementation manner, a plugging and locking component for locking the pushing half-ring is installed on the side wall of the guiding frame. The plugging and locking component includes an installation groove opened on the guiding frame. A plug post is slidably connected in the installation groove. A third reset spring is installed between the plug post and the installation groove. A jack is opened on the outer ring surface of the pushing half-ring and a retaining piece is installed.

[0015] In a possible implementation manner, the top locking part includes a moving guide groove one formed in the side wall of the supporting cylinder and communicating with the supporting cylinder. The moving guide groove one is composed of two staggeredly arranged straight grooves and an arc-shaped through groove connecting the two straight grooves. The straight grooves of the moving guide groove one extend to the material guiding cylinder. A connecting seat is slidably connected to the material guiding cylinder. A triangular connecting frame is installed between the connecting seat and the pushing half ring. An L-shaped abutting rod for pushing the connecting seat is installed on the pushing column. The L-shaped abutting rod slidably penetrates through the moving guide groove one.

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

[0017] In a possible implementation manner, the traction assembly includes a moving guide groove two formed in the side wall of the material guiding cylinder. The moving guide groove two has the same shape as the moving guide groove one. A pull rod slidably penetrating through the moving guide groove two is installed on the side wall of the pushing 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 part.

[0018] In a possible implementation manner, a buffer material guiding assembly is jointly installed on the fixing seat and the supporting seat. The buffer material guiding assembly is located below the material guiding cylinder. The buffer material guiding assembly is composed of an inclined plate and a folding plate located below the discharge port and connected to the fixing seat and the supporting seat. A collection box for collecting the valve core is also provided on the base.

[0019] One or more of the above technical solutions in the embodiments of the present invention have at least the following beneficial effects: 1. A tapping tool for a hydraulic cylinder valve core designed by the present invention, through the cooperation of the supporting cylinder, the material guiding cylinder, the sealing and supporting mechanism and the top material mechanism, enables the valve core falling from the feeding mechanism to be directly pushed along the axial directions of the supporting cylinder and the material guiding cylinder to the working position of the clamping and locking mechanism at one time, and then the clamping and locking mechanism positions and clamps the valve core in the center, avoiding the problem that in the traditional method, after driving the valve core to move radially and then axially, due to more moving directions, the alignment between the valve core and the clamping and locking mechanism is deviated, and further the clamping of the valve core by the clamping and locking mechanism is inaccurate, which affects the tapping quality of the valve core; at the same time, when the clamping and locking mechanism clamps the valve core, it clamps the side wall of the valve core comprehensively, and presses and fixes the two axial ends of the valve core through the limiting part and the top material mechanism, greatly improving the stability of the valve core fixation and the tapping quality of the valve core.

[0020] 2. When the limiting member abuts against the valve core in the present invention, the ejecting mechanism drives the clamping and locking mechanism to clamp and fix the valve core. At the same time, the sealing and supporting mechanism locks the clamping and locking mechanism through the plug lock assembly, thereby improving the stability of the clamping and locking mechanism for fixing the valve core.

[0021] 3. When the ejecting mechanism moves back to its original position in the present invention, it drives the sealing and supporting mechanism to open the discharge port, so that the valve core after tapping automatically discharges from the discharge port, thereby improving the convenience of discharging the valve core after tapping and realizing the integrated driving of the loading and unloading of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

[0024] Figure 2 is Figure 1 the partial enlarged schematic diagram at A of

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

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

[0027] Figure 5 is Figure 1 the main cross-sectional view of

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

[0029] Figure 7 is the top cross-sectional structure schematic diagram of the plug lock assembly of the present invention.

[0030] Figure 8 is the structure schematic diagram of the buffer and guiding component of the present invention.

[0031] Reference numerals: 1. Base; 2. Support base; 20. Buffer feeding assembly; 3. Tapping mechanism; 4. Loading mechanism; 5. Support cylinder; 50. Fixed seat; 51. Feeding port; 52. Feeding guide cylinder; 53. Discharging port; 54. Limiting member; 6. Sealing support mechanism; 60. Storage groove; 61. Support bar; 610. Insertion slot; 611. Insertion rod; 62. First return spring; 63. Guide frame; 630. Insertion post; 631. Third return spring; 632. Flap; 7. Clamping and locking mechanism; 70. Accommodation groove; 71. Clamping seat; 72. First return spring; 73. Connecting rod; 74. Wedge block; 75. Pushing semi-ring; 76. Second return spring; 8. Pushing mechanism; 80. Cylinder; 81. Pushing post; 82. Pushing rod; 83. Second return spring; 84. Limiting rod; 85. Top locking part; 850. First moving guide groove; 851. Triangular connecting frame; 852. Connecting seat; 853. L-shaped pushing rod; 86. Opening driving part; 860. Fixed frame; 861. Pushing rod; 862. Traction rod; 863. Trapezoidal block; 864. Third return spring; 870. Second moving guide groove; 871. Pulling rod; 872. Rotating plate; 9. Valve core. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Refer to Figure 1 and Figure 2 With Figure 3 , a tapping tool for a hydraulic cylinder valve core includes: a base 1, a loading mechanism 4, a support cylinder 5, a sealing support mechanism 6, a clamping and locking mechanism 7, and a pushing mechanism 8. A support base 2 and a tapping mechanism 3 are installed on the top of the base 1. The loading mechanism 4 is installed on the support base 2. The support cylinder 5 is horizontally installed on the top of the support base 2 through a fixed seat 50. One end of the support cylinder 5 is provided with a feeding port 51 on the top side wall, and the other end is provided with a feeding guide cylinder 52. The feeding guide cylinder 52 is concentric with the support cylinder 5 and is provided with a discharging port 53 on the lower side wall. A limiting member 54 for limiting the valve core 9 is provided at one end of the feeding guide cylinder 52 away from the support cylinder 5.

[0035] Refer to Figure 1 and Figure 2 With Figure 3, the sealing and supporting mechanism 6 and the clamping and locking mechanism 7 are both installed on the material guiding cylinder 52, and the ejecting mechanism 8 is installed on the base 1 and is located on one side close to the feeding port 51. The sealing and supporting mechanism 6 is used to close and open the discharging port 53 and support the valve core 9 when it enters the material guiding cylinder 52; the clamping and locking mechanism 7 is used to clamp the valve core 9 that enters the material guiding cylinder 52.

[0036] Refer to Figure 1 、 Figure 2 and Figure 3 , the limiting member 54 is an annular structure installed at the end of the material guiding cylinder 52 with an opening on the lower side wall. The inner diameter of the limiting member 54 is smaller than the outer diameter of the tapping end of the valve core 9 and larger than the tapping hole diameter 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 material guiding cylinder 52.

[0037] The tapping mechanism 3 and the feeding mechanism 4 are both existing devices. The feeding mechanism 4 is used to arrange the valve cores 9 and automatically enter the supporting cylinder 5 from the feeding port 51. The tapping mechanism 3 is used to perform tapping on the valve core 9 that enters the material guiding cylinder 52 and is fixed by the clamping and locking mechanism 7.

[0038] During operation, the valve core 9 automatically enters the supporting cylinder 5 through the feeding mechanism 4. The ejecting mechanism 8 pushes the valve core 9 located in the supporting cylinder 5 towards the material guiding cylinder 52. At this time, the discharging port 53 is closed by the self-adaptive force of the sealing and supporting mechanism 6. When the valve core 9 enters the material guiding cylinder 52, the sealing and supporting mechanism 6 supports the valve core 9. When the valve core 9 abuts against the limiting member 54, the ejecting mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9, and at the same time, the sealing and supporting mechanism 6 locks the clamping and locking mechanism 7, thereby improving the stability of the clamping and locking mechanism 7 for fixing the valve core 9.

[0039] Through the cooperation of the sealing and supporting mechanism 6, the clamping and locking mechanism 7 and the ejecting mechanism 8, after the valve core 9 enters the supporting cylinder 5, it moves along the axes of the supporting cylinder 5 and the material guiding cylinder 52. Then, through the centering positioning and fixing of the clamping and locking mechanism 7 when clamping the valve core 9, the valve core 9 can be accurately concentrically positioned with the tapping mechanism 3, greatly improving the accuracy of the alignment between the valve core 9 and the tapping mechanism 3 and the tapping quality when the valve core 9 is tapped.

[0040] When the tapping of the valve core 9 is completed, when the ejecting mechanism 8 moves in the reset direction, it drives the sealing and supporting mechanism 6 to open the discharging port 53, so that the valve core 9 after tapping is automatically discharged from the discharging port 53, thereby improving the convenience of loading and unloading the valve core 9 during tapping.

[0041] Refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 6, the sealing and supporting mechanism 6 includes two symmetrically arranged receiving grooves 60 opened on the discharging port 53. A guiding frame 63 is slidably connected to the receiving groove 60. Supporting bars 61 are installed at the opposite ends of the two guiding frames 63. The supporting bar 61 is in an L shape with the vertical section away from the supporting cylinder 5. A first return spring 62 is installed between the guiding frame 63 and the outer wall of the material guiding cylinder 52.

[0042] Refer to Figure 6 , slots 610 are evenly arranged on the side wall of one of the supporting bars 61, and inserting rods 611 corresponding to the slots 610 one by one are installed on the side wall of the other supporting bar 61. The slots 610 cooperate with the inserting rods 611, so that when the two supporting bars 61 are pressed tightly under the elastic force of the first return spring 62, they are inserted and supported with each other, preventing the supporting bar 61 from automatically opening under the gravity pressing of the valve core 9.

[0043] When the valve core 9 enters the material guiding cylinder 52, the supporting bar 61 supports the valve core 9 until the end of the valve core 9 abuts against the vertical section of the supporting bar 61. At this time, the valve core 9 no longer moves under the limiting action of the limiting member 54 and the vertical section of the supporting bar 61. Then the ejecting mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9 and position its axis, and then thread tapping processing is carried out.

[0044] Refer to Figure 2 、 Figure 3 And Figure 6 , the clamping and locking mechanism 7 includes receiving grooves 70 evenly arranged along the circumferential direction on the inner wall of the material guiding cylinder 52. A clamping seat 71 sliding along the radial direction of the material guiding cylinder 52 is connected to the receiving groove 70. A first reset spring 72 is installed between the clamping seat 71 and the receiving groove 70. A connecting rod 73 sliding through the material guiding cylinder 52 is installed on the clamping seat 71. A wedge block 74 is installed on the connecting rod 73. A pushing semi-ring 75 is slidably sleeved on the material guiding cylinder 52. The inner ring surface of the pushing semi-ring 75 is in a conical shape matching the wedge block 74. Uniformly arranged balls are installed on the wedge block 74. A second reset spring 76 is installed between the pushing semi-ring 75 and the material guiding cylinder 52.

[0045] Refer to Figure 6 , the side of the clamping seat 71 close to the axis of the material guiding cylinder 52 is in an uneven shape matching the side wall of the valve core 9, so as to increase the contact surface between the clamping seat 71 and the side wall of the valve core 9, and further improve the stability of the clamping seat 71 for fixing the valve core 9.

[0046] When the ejector mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9, the ejector mechanism 8 pushes the pushing half-ring 75 to move. During the movement of the pushing half-ring 75, it squeezes and pushes the wedge block 74. The ball on the wedge block 74 is used to reduce the friction force when the pushing half-ring 75 pushes the wedge block 74. The wedge block 74 pushes the clamping seat 71 to move towards the side wall of the valve core 9 through the connecting rod 73. Multiple clamping seats 71 move towards the valve core 9 simultaneously to center the valve core 9 axially until multiple clamping seats 71 clamp and fix the valve core 9. At this time, the valve core 9 receives the axial limiting forces on both sides from the ejector mechanism 8 and the limiting member 54 and the clamping and fixing force on the side wall, greatly improving the stability of the fixation of the valve core 9.

[0047] Refer to Figure 3 and Figure 7 , a plug lock assembly for locking the pushing half-ring 75 is installed on the side wall of the guiding frame 63. The plug lock assembly includes a mounting groove opened on the guiding frame 63. A plug post 630 is slidably connected in the mounting groove. A third return spring 631 is installed between the plug post 630 and the mounting groove. A jack is opened on the outer ring surface of the pushing half-ring 75 and a retaining piece 632 is installed.

[0048] In the initial state, the side wall of the retaining piece 632 abuts against the end of the plug post 630. A ball is installed at the end of the plug post 630 to reduce the friction force between the plug post 630 and the retaining piece 632. When the pushing half-ring 75 drives the retaining piece 632 to move, the ball on the plug post 630 rolls on the retaining piece 632. When the pushing half-ring 75 abuts against the wedge block 74 and stops moving, the plug post 630 is aligned with the jack, and the plug post 630 is inserted into the jack under the elastic force of the third return spring 631 to lock the position of the pushing half-ring 75, thereby improving the stability of the clamping and locking mechanism 7 for clamping and fixing the valve core 9.

[0049] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the ejector mechanism 8 includes a cylinder 80 rotatably mounted on the support base 2, and a rotary drive source for driving the rotation of the cylinder 80 is also mounted on the support base 2. The telescopic end of the cylinder 80 is provided with a push column 81 slidably connected to the inner wall of the support cylinder 5. A spring groove is formed at one end of the push column 81 away from the cylinder 80. A push rod 82 is slidably connected to the spring groove. A return spring II 83 is installed between the push rod 82 and the spring groove. A limiting rod 84 for limiting the push rod 82 is installed on the push column 81 within the spring groove. A top lock portion 85 and an opening drive portion 86 are jointly installed among the push column 81, the support cylinder 5, and the material guiding cylinder 52. The push column 81 drives the pushing and squeezing half ring 75 through the top lock portion 85 to drive the clamping seat 71 to fix the valve core 9. When the push column 81 moves toward the side away from the material guiding cylinder 52, it drives the movement of two support bars 61 through the opening drive portion 86 to open the discharge port 53.

[0050] When the cylinder 80 pushes the push column 81 and the push rod 82 to move and push the valve core 9 falling in the support cylinder 5 toward the material guiding cylinder 52, the lowest valve core 9 in the feeding mechanism 4 falls on the push column 81, preventing the next valve core 9 from getting stuck at the feeding port 51 and causing problems such as difficulty in resetting the push column 81 and the push rod 82. The push column 81 and the push rod 82 push the valve core 9 in contact with them to move into the material guiding cylinder 52. When the valve core 9 abuts against the limiting member 54 and the vertical section of the support bar 61, the rotary drive source (such as a motor) drives the cylinder 80, the push column 81, and the push rod 82 to rotate and drives the pushing and squeezing half ring 75 to move through the top lock portion 85, so that the clamping seat 71 clamps and fixes the valve core 9.

[0051] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the top lock portion 85 includes a moving guide groove I 850 formed in the side wall of the support cylinder 5 and communicating with it. The moving guide groove I 850 is composed of two staggeredly arranged straight slots and an arc-shaped through groove connecting the two straight slots. The straight slot of the moving guide groove I 850 extends to the material guiding cylinder 52. A connecting seat 852 is slidably connected to the material guiding cylinder 52. A triangular connecting frame 851 is installed between the connecting seat 852 and the pushing and squeezing half ring 75. An L-shaped abutting rod 853 for pushing the connecting seat 852 is installed on the push column 81. The L-shaped abutting rod 853 slidably penetrates through the moving guide groove I 850.

[0052] When the valve core 9 abuts against the limiting member 54, the rotary drive source drives the push column 81 and the abutting push rod 82 to rotate. The L-shaped abutting rod 853 on the push column 81 rotates on the arc-shaped through groove of the first moving guide groove 850, so that a section of the L-shaped abutting rod 853 perpendicular to the connecting seat 852 is rotated to align with the connecting seat 852. Then, the air cylinder 80 continues to push the push column 81. The push column 81 compresses the second return spring 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 linear groove on the first moving guide groove 850. The connecting seat 852 pushes the pushing half ring 75 through the triangular connecting frame 851, so that the connecting seat 852 pushes the pushing half ring 75 with uniformly dispersed acting forces. The pushing half ring 75 moves to drive the clamping seat 71 to clamp and fix the valve core 9. At this time, the abutting push rod 82 abuts tightly against the limiting rod 84, so that the valve core 9 can be accurately concentrically positioned with the tapping mechanism 3, greatly improving the accuracy of the alignment between the valve core 9 and the tapping mechanism 3 and the tapping quality when the valve core 9 is tapped.

[0053] After the tapping process of the valve core 9 is completed, when the air cylinder 80 drives the push column 81 and the abutting push rod 82 to move out of the material guiding cylinder 52, the opening drive part 86 is turned on to drive the supporting strip 61 to move to open the discharge port 53. At the same time, the insertion lock assembly unlocks the pushing half ring 75. The pushing half ring 75 resets under the elastic force of the second return spring 76, and the processed valve core 9 automatically discharges from the discharge port 53.

[0054] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in

[0055] Refer to Figure 4 and Figure 6 As shown in

[0056] When the push rod 81 and the abutting push rod 82 rotate, they drive the pull rod 871 to rotate along the arc-shaped through groove in the second moving guide groove 870. At this time, both the pull rod 871 and the rotating plate 872 move 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 rod 81. When the air cylinder 80 drives the push rod 81 out of the material guiding cylinder 52, the pull rod 871 moves along the linear groove of the second moving guide groove 870. When the rotating plate 872 abuts against the vertical section of the traction rod 862, 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 presses the push rods 861 on both sides of it. The push rods 861 move along the fixed frame 860 and drive the supporting strip 61 towards the receiving groove 60, thereby opening the discharge port 53. At the same time, the L-shaped abutting rod 853 moves along the first moving guide groove 850 towards the side away from the connecting seat 852. The connecting seat 852, the triangular connecting frame 851 and the pushing semi-ring 75 move towards the supporting cylinder 5 under the elastic force of the second return spring 76, so that the pushing semi-ring 75 no longer presses the wedge-shaped block 74. The wedge-shaped block 74 resets under the elastic force of the first return spring 72, thereby driving 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 its own gravity and is discharged.

[0057] Refer to Figure 1 , Figure 3 and Figure 8 , a buffer and material guiding assembly 20 is jointly installed on the fixed seat 50 and the supporting seat 2. The buffer and material guiding assembly 20 is located below the material guiding cylinder 52. The buffer and material guiding assembly 20 is composed of an inclined plate and a folding plate located below the discharge port 53 and connected to the fixed seat 50 and the supporting seat 2. A collection box for collecting the valve core 9 is also provided on the base 1. When the valve core 9 falls, it first lands on the inclined plate, then rolls onto the folding plate, and falls into the collection box along the folding plate, thereby reducing the impact force when the valve core 9 falls.

[0058] Refer to Figures 1 - 8 , during specific operation, the valve core 9 automatically enters the supporting cylinder 5 through the feeding mechanism 4. The ejector mechanism 8 pushes the valve core 9 located in the supporting cylinder 5 towards the material guiding cylinder 52. At this time, the discharge port 53 is closed under the self-adaptive force of the sealing and supporting mechanism 6. When the valve core 9 enters the material guiding cylinder 52, the sealing and supporting mechanism 6 supports the valve core 9. When the valve core 9 abuts tightly against the limiting member 54, the ejector mechanism 8 drives the clamping and locking mechanism 7 to clamp and fix the valve core 9. At the same time, the sealing and supporting mechanism 6 locks the clamping and locking mechanism 7, thereby improving the stability of the clamping and locking mechanism 7 in fixing the valve core 9.

[0059] Then, the tapping mechanism 3 performs tapping on the valve core 9. After the tapping of the valve core 9 is completed, when the air cylinder 80 drives the push rod 81 and the push rod 82 to move out of the feeding cylinder 52, the pull rod 871 drives the traction rod 862 and the trapezoidal block 863 to move. The trapezoidal block 863 squeezes the push rods 861 on both sides of it. The push rods 861 move along the fixed frame 860 and drive the supporting strip 61 to move towards the receiving groove 60, thereby opening the discharge port 53. At the same time, the plug lock assembly unlocks the pushing semi-ring 75. The pushing semi-ring 75 is reset under the elastic force of the second return spring 76, and 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 loading and unloading the valve core 9 during tapping.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0061] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A tapping tooling for a hydraulic cylinder spool, characterized in that Comprising: A base, on the top of which there is a supporting seat and a tapping mechanism; A feeding mechanism, arranged on the supporting seat and used for arranging and feeding the valve cores; A supporting cylinder, horizontally arranged on the top of the supporting seat through a fixing seat. At one end of the supporting cylinder, a feeding port is opened on the top side wall, and a guiding cylinder is installed at the other end. The guiding cylinder is concentric with the supporting cylinder and a discharging port is opened on the lower side wall. A limiting member for limiting the valve core is arranged at the end of the guiding cylinder away from the supporting cylinder; A sealing and supporting mechanism, arranged at the lower opening of the guiding cylinder, used for closing and opening the discharging port and supporting when the valve core enters the guiding cylinder; A clamping and locking mechanism, arranged on the guiding cylinder and used for clamping and fixing the valve core entering the guiding cylinder; A pushing mechanism, arranged on the base and on the side close to the feeding port, used for pushing the valve core falling into the supporting cylinder from the feeding mechanism into the guiding cylinder. At the same time, the pushing mechanism also drives the locking mechanism to clamp the valve core and drives the sealing and supporting mechanism to open the discharging port when the pushing mechanism resets after the valve core tapping is completed.

2. The tapping tooling for the hydraulic cylinder spool according to claim 1, wherein: The sealing and supporting mechanism includes two symmetrically arranged receiving grooves opened on the discharging port. A guiding frame is slidably connected to the receiving grooves. Supporting strips are installed at the opposite ends of the two guiding frames. The supporting strips are in an L shape with the vertical section away from the supporting cylinder. A first return spring is installed between the guiding frame and the outer wall of the guiding cylinder.

3. The tapping tooling for the hydraulic cylinder spool according to claim 2, characterized in that: The clamping and locking mechanism includes receiving grooves uniformly arranged along the circumferential direction on the inner wall of the guiding cylinder. A clamping seat slidably connected along the radial direction of the guiding cylinder is connected to the receiving grooves. A first reset spring is installed between the clamping seat and the receiving grooves. A connecting rod slidably penetrating through the guiding cylinder is installed on the clamping seat. A wedge block is installed on the connecting rod. A pushing semi-ring is slidably sleeved on the guiding cylinder. The inner ring surface of the pushing semi-ring is in a conical shape matching the wedge block. A second reset spring is installed between the pushing semi-ring and the guiding cylinder.

4. The tapping tooling for the hydraulic cylinder spool according to claim 3, characterized in that: A plugging lock assembly for locking the pushing semi-ring is installed on the side wall of the guiding frame. The plugging lock assembly includes an installation groove opened on the guiding frame. A plug post is slidably connected in the installation groove. A third reset spring is installed between the plug post and the installation groove. A plug hole is opened on the outer ring surface of the pushing semi-ring and a retaining piece is installed.

5. The tapping tooling for the hydraulic cylinder spool according to claim 3, wherein: The pushing mechanism includes a cylinder rotatably installed on the supporting seat. A rotary driving source for driving the cylinder to rotate is also installed on the base. A push post slidably connected to the inner wall of the supporting cylinder is installed at the telescopic end of the cylinder. A spring groove is opened at the end of the push post away from the cylinder. A pushing rod is slidably connected to the spring groove. A second return spring is installed between the pushing rod and the spring groove. A top locking part and an opening driving part are jointly installed between the push post and the supporting cylinder and the guiding cylinder. The push post drives the pushing semi-ring through the top locking part to drive the clamping seat to fix the valve core. When the push post moves to the side away from the guiding cylinder, the two supporting strips are driven to move through the opening driving part to open the discharging port.

6. The tapping tooling for the hydraulic cylinder spool according to claim 5, characterized in that: The top locking part includes a moving guide groove I opened on the side wall of the supporting cylinder and communicating with it. The moving guide groove I is composed of two staggeredly arranged straight slots and an arc-shaped through groove connecting the two straight slots. The straight slots of the moving guide groove I extend to the material guiding cylinder. A connecting seat is slidably connected to the material guiding cylinder. A triangular connecting frame is installed between the connecting seat and the pushing semi-ring. An L-shaped abutting rod for pushing the connecting seat is installed on the pushing column, and the L-shaped abutting rod slidably penetrates through the moving guide groove I.

7. The tapping tooling for the hydraulic cylinder spool according to claim 6, characterized in that: The opening driving part includes a pushing rod installed at one end of the supporting strip close to the supporting cylinder. A fixing frame slidably connected to the pushing rod is installed on the fixing seat. A traction rod is slidably connected to the fixing seat. A trapezoidal block is installed at the end of the traction rod. The traction rod is L-shaped. The two pushing rods respectively abut against the two inclined surfaces of the trapezoidal block. A return spring III is installed between the trapezoidal block and the fixing frame. A traction component for pulling the traction rod is installed on the pushing column.

8. The tapping tooling for the hydraulic cylinder spool according to claim 2, characterized in that: Uniformly arranged slots are opened on the side wall of one of the supporting strips, and inserting rods corresponding to the slots one by one are installed on the side wall of the other supporting strip. The slots and the inserting rods are matched with each other.

9. The tapping tooling for the hydraulic cylinder spool according to claim 7, characterized in that: The traction component includes a moving guide groove II opened on the side wall of the material guiding cylinder. The moving guide groove II has the same shape as the moving guide groove I. A pull rod slidably penetrating through the moving guide groove II is installed on the side wall of the pushing column. A rotating plate is hinged to the end of the pull rod, and the rotating plate can only rotate around the end of the pull rod to the side away from the limiting part.

10. The tapping tooling for the hydraulic cylinder spool according to claim 3, wherein: One side of the clamping seat close to the axis of the material guiding cylinder is in a concave-convex shape matching the side wall of the valve core.

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