Structure for press fitting of valve sleeve

Abstract

The utility model discloses a structure for valve sleeve press fitting, which comprises an X shaft, a Y shaft, a Z shaft, a base and a first transverse moving mechanism arranged on the base, a longitudinal moving mechanism is arranged on the first transverse moving mechanism, a second transverse moving mechanism is arranged on the longitudinal moving mechanism, and a supporting seat is arranged on the second transverse moving mechanism. The first transverse moving mechanism adjusts the displacement of the longitudinal moving mechanism in the X-axis direction, the longitudinal moving mechanism adjusts the displacement of the second transverse moving mechanism in the Y-axis direction, and the second transverse moving mechanism adjusts the displacement of the supporting base in the Z-axis direction. A rotating seat is fixed at the end part of the supporting seat, a connecting rod is rotatably mounted on the rotating seat, a press-fitting block matched with the structure of the valve sleeve is fixed on the connecting rod, and a plurality of positioning pieces extending into the valve sleeve for positioning are arranged on the press-fitting block; and the stability of the valve sleeve press-fitting process is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, and in particular to a structure for press-fitting valve sleeves. Background Technology

[0002] The valve sleeve is an important component in the valve assembly. During valve assembly, the valve sleeve needs to be press-fitted. Valve assembly is carried out in an automated manner. When pressing the valve sleeve, if there is a certain angular deviation during the movement of the valve body, manual intervention is required to adjust the relative angle of the valve body before the pressing operation can continue through the valve sleeve pressing mechanism. This leads to a reduction in the valve sleeve pressing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a structure for valve sleeve press-fitting that can continue to complete valve sleeve press-fitting even when there is a certain angular deviation in the press-fitting position.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A structure for press-fitting valve sleeves includes an X-axis, a Y-axis, and a Z-axis. It includes a base and a first transverse movement mechanism mounted on the base. A longitudinal movement mechanism is mounted on the first transverse movement mechanism, and a second transverse movement mechanism is mounted on the longitudinal movement mechanism. A support seat is mounted on the second transverse movement mechanism. The first transverse movement mechanism adjusts the displacement of the longitudinal movement mechanism along the X-axis, the longitudinal movement mechanism adjusts the displacement of the second transverse movement mechanism along the Y-axis, and the second transverse movement mechanism adjusts the displacement of the support seat along the Z-axis. A rotating seat is fixed to the end of the support seat, and a connecting rod is rotatably mounted on the rotating seat. A press-fitting block with a matching valve sleeve structure is fixed to the connecting rod, and the press-fitting block is provided with multiple positioning elements that extend into and position the valve sleeve.

[0006] Preferably, the rotating seat includes a first seat body fixed on the support seat, a first locking seat fastened to the first seat body, the first locking seat having an inverted conical mounting hole, the upper end of the connecting rod engaging with the conical surface of the mounting hole and extending out of the mounting hole, a pressure plate mounted on the top of the connecting rod, and a plurality of ball bearings protruding from the pressure plate between the connecting rod and the pressure plate; a floating buffer is provided inside the first seat body, the bottom of the buffer engaging with the ball bearings in a rolling manner.

[0007] Preferably, the pressing block includes a first pressing seat fastened to the lower end of the connecting rod, a second pressing seat fastened to the first pressing seat, and the positioning member passing through the second pressing seat from one side of the first pressing seat and protruding from the end.

[0008] Preferably, the first pressure seat is provided with a stepped groove for positioning the lower end face of the connecting rod.

[0009] Preferably, the first pressure seat has a countersunk hole located on one side of the second pressure seat, and the countersunk hole communicates with the stepped groove.

[0010] Preferably, the positioning element is a screw.

[0011] Preferably, the support base includes a mounting plate mounted on the second transverse mechanism and an L-shaped hanging plate mounted on the mounting plate, the hanging plate being provided with reinforcing ribs; the rotating seat is mounted on the hanging plate, and one end of the reinforcing rib extends above the rotating seat.

[0012] Preferably, the first traverse mechanism includes a first slide rail seat mounted on the base and a first lead screw mechanism mounted inside the first slide rail seat, and a first drive motor for driving the first lead screw mechanism is mounted at the end of the first slide rail seat.

[0013] Preferably, the longitudinal movement mechanism includes a frame slidably mounted on the first slide rail seat, and the lead screw nut of the first lead screw mechanism is fixed to the bottom of the frame; a second slide rail seat and a second lead screw mechanism are mounted on the frame, and a second drive motor for driving the second lead screw mechanism is mounted at the end of the second slide rail seat.

[0014] Preferably, the second traverse mechanism includes a crossbeam slidably mounted on a second slide rail seat, and the lead screw nut of the second lead screw mechanism is fixed on the crossbeam; a third slide rail seat and a third lead screw mechanism are mounted on the crossbeam, and a third drive motor for driving the third lead screw mechanism is mounted at the end of the third slide rail seat; the mounting plate is slidably mounted on the third slide rail seat, and the nut of the third lead screw mechanism is fixed on the mounting plate.

[0015] Beneficial effects:

[0016] The spatial coordinates of the support seat are moved by adjusting the movements of the first, second, and third transverse mechanisms, so that the support seat is moved to the pressing position and drives the rotating seat, connecting rod, and pressing block to move downward to apply pressure to the valve sleeve. Since the connecting rod and pressing block can rotate relative to the rotating seat, they can adaptively rotate during the pressing process when there is an angular deviation in the pressing position until the valve sleeve is pressed into place.

[0017] Meanwhile, multiple positioning elements are set on the pressing block. The positioning elements can extend into the valve sleeve to position the valve sleeve and ensure that when the rotation angle needs to be adjusted during the pressing process, the valve sleeve rotates to match the pressing angle of the pressing position, ensuring that the valve sleeve can be pressed smoothly even if there is a certain angle deviation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rotating seat mounting pressure block in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first locking seat in an embodiment of this utility model;

[0021] Figure 4 This is a first-view structural diagram of the second pressure seat in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the second pressure seat from a second perspective in an embodiment of this utility model;

[0023] exist Figures 1 to 5 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0024] Base 1, First transverse movement mechanism 2, First slide rail seat 21, First lead screw mechanism 22, First drive motor 23, Longitudinal movement mechanism 3, Upright frame 31, Second slide rail seat 32, Second lead screw mechanism 33, Second drive motor 34, Second transverse movement mechanism 4, Horizontal frame 41, Third slide rail seat 42, Third lead screw mechanism 43, Third drive motor 44, Support seat 5, Mounting plate 51, Hanging plate 52, Reinforcing rib 53, Rotating seat 6, First seat body 61, First locking seat 62, Mounting hole 63, Pressure plate 64, Ball bearing 65, Buffer component 66, Connecting rod 7, Pressing block 8, First pressure seat 81, Second pressure seat 82, Step groove 83, Countersunk hole 84, Positioning component 9. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] See Figures 1-5As shown, this utility model proposes a structure for valve sleeve press-fitting, which is a process in an automated valve assembly production line, mainly used to press-fit valve sleeves onto valve bodies for assembly. It includes an X-axis, Y-axis, and Z-axis, as well as a base 1. The overall structure is mounted into the production line via the base 1, and includes a first transverse movement mechanism 2 mounted on the base 1. A longitudinal movement mechanism 3 is mounted on the first transverse movement mechanism 2, and a second transverse movement mechanism 4 is mounted on the longitudinal movement mechanism 3. A support seat 5 is mounted on the second transverse movement mechanism 4. The first transverse movement mechanism 2 adjusts the displacement of the longitudinal movement mechanism 3 along the X-axis, the longitudinal movement mechanism 3 adjusts the displacement of the second transverse movement mechanism 4 along the Y-axis, and the second transverse movement mechanism 4 adjusts the displacement of the support seat 5 along the Z-axis. Thus, under the adjusting action of the first transverse movement mechanism, the second transverse movement mechanism 4, and the longitudinal movement mechanism 3, the spatial coordinates of the support seat 5 are adjusted, allowing the support seat 5 to move to the press-fitting position. After aligning the press-fitting position, the longitudinal movement mechanism 3 adjusts the downward movement, thereby realizing the press-fitting process.

[0027] Because a certain angular deviation can occur in the pressing position during the movement of the valve body, and the pressing angle of the valve sleeve has a corresponding matching direction, it is necessary to make a certain angle adaptive adjustment of the valve sleeve during the pressing process, so that the valve sleeve can be smoothly pressed onto the valve body even with angular deviation. Specifically, a rotating seat 6 is fixed at the end of the support base 5, and a connecting rod 7 is rotatably installed on the rotating seat 6. A pressing block 8 with a matching structure of the valve sleeve is fixed on the connecting rod 7. The pressing block 8 is provided with multiple positioning parts 9 that extend into the valve sleeve for positioning. The valve sleeve is grasped and positioned by the multiple positioning parts 9 extending into the valve sleeve. After moving to the pressing position, it is pressed down by the longitudinal movement mechanism 3. Since the connecting rod 7 can rotate the pressing block 8 relative to the rotating seat 6, the angular deviation between the valve sleeve and the pressing position is used during the pressing process to drive the valve sleeve to rotate under pressure to match the angular deviation of the pressing position, thereby successfully completing the pressing of the valve sleeve. When the valve sleeve is subjected to a reaction force, the connecting rod 7 can rotate in the opposite direction, thereby enabling the valve sleeve angle to be adjusted within a small angle.

[0028] Specifically, the rotating seat 6 includes a first seat body 61 fixed on the support seat 5. A first locking seat 62 is fastened to the first seat body 61. The first locking seat 62 has an inverted conical mounting hole 63. The upper end of the connecting rod 7 engages with the conical surface of the mounting hole 63 and extends out of the mounting hole 63. The mounting hole 63 limits the connection rod 7, preventing it from disengaging. The cavity enclosed by the first locking seat 62 and the first seat body 61 allows the connecting rod 7 to slide. A pressure plate 64 is installed on the top of the connecting rod 7. Multiple balls 65 protrude from the pressure plate 64 between the connecting rod 7 and the pressure plate 64. A floating buffer 66 is provided inside the first seat body 61. The bottom of the buffer 66 rolls with the balls 65. The buffer 66 is made of rigid material, and its floating stroke, which limits the upward movement of the connecting rod 7 under pressure, is controlled by the buffer 66. When the connecting rod 7 moves upward under pressure, the ball bearing 65 presses it against the buffer member 66, allowing it to rotate. Since the buffer member 66 has a certain angular oscillation, when it is compressed and tilted, it guides the connecting rod 7 to rotate, thus achieving the self-rotation of the connecting rod 7. After rotational equilibrium is reached, the buffer member 66 will no longer oscillate within the first seat 61, allowing it to receive and apply a downward pressing force to the connecting rod 7, thereby press-fitting the valve sleeve. The oscillation angle of the buffer member 66 is related to the length of its protruding columnar structure, and the specific oscillation angle is determined by the required adjustable rotation angle.

[0029] Thus, when the connecting rod 7 pushes the buffer 66, it can be guided to rotate at a certain angle, and after the buffer 66 is pushed and pressed, it is restricted from rotating. This allows the valve sleeve to rotate at a certain angle after being blocked during the pressing process and then be pressed into the press-fit position.

[0030] Specifically, the pressing block 8 is used to fasten the connection to the connecting rod 7 and to fasten and limit the positioning member 9. The pressing block 8 includes a first pressing seat 81 fastened to the lower end of the connecting rod 7. A second pressing seat 82 is fastened to the first pressing seat 81. The positioning member 9 passes through the second pressing seat 82 from one side of the first pressing seat 81 and protrudes from the end. It is fastened to the lower end of the connecting rod 7 through the first pressing seat 81. The positioning member 9 protrudes from the inside to the outside. After the second pressing seat 82 is fastened to the first pressing seat 81, the positioning member 9 is restricted from falling off.

[0031] Meanwhile, a stepped groove 83 is provided on the first pressure seat 81 for positioning the lower end face of the connecting rod 7. The stepped groove 83 plays a positioning role when the connecting rod 7 is fastened.

[0032] A countersunk hole 84 is provided on the first pressure seat 81, located on one side of the second pressure seat 82. The countersunk hole 84 communicates with the stepped groove 83. The countersunk hole 84 is used to countersunk the fasteners of the locking connecting rod 7, so as to ensure that the second pressure seat 82 and the first pressure seat 81 are in planar contact, which is more reliable when pressure is applied, and the structure will not wobble.

[0033] To ensure that the positioning component 9 does not wobble after installation, the positioning component 9 is pressed by the first pressure seat 81, and the positioning component 9 is a screw with a threaded connection to achieve self-locking, and is prevented from rotating under the limiting action of the first pressure seat 81.

[0034] The support base 5 is designed to apply pressure, and its structural strength must meet the pressure requirements. Specifically, the support base 5 includes a mounting plate 51 installed on the second transverse mechanism 4 and an L-shaped hanging plate 52 installed on the mounting plate 51. The hanging plate 52 is provided with reinforcing ribs 53 to enhance its strength. The hanging plate 52 is slidably installed on the second transverse mechanism 4 via the mounting plate 51. The rotating seat 6 is installed on the hanging plate 52. One end of the reinforcing rib 53 extends above the rotating seat 6 to ensure the structural strength of the hanging plate 52 when pressure is applied, preventing deformation and ensuring smooth press-fitting of the valve sleeve.

[0035] In this embodiment, a first transverse mechanism 2, a second transverse mechanism 4, and a longitudinal mechanism 3 are used to achieve position adjustment, and the longitudinal mechanism 3 is used to perform the pressing operation. Therefore, the three mechanisms constitute a system, and their actions are related to each other. The first transverse mechanism 2 includes a first slide rail seat 21 mounted on the base 1 and a first lead screw mechanism 22 mounted inside the first slide rail seat 21. A first drive motor 23 is installed at the end of the first slide rail seat 21 to drive the first lead screw mechanism 22. The displacement adjustment of the longitudinal mechanism 3 on the first slide rail seat 21 is achieved through the first drive motor 23 and the first lead screw mechanism 22.

[0036] The longitudinal movement mechanism 3 includes a frame 31 slidably mounted on the first slide rail seat 21, and the nut of the first lead screw mechanism 22 is fixed to the bottom of the frame 31. A second slide rail seat 32 and a second lead screw mechanism 33 are mounted on the frame 31. A second drive motor 34 that drives the second lead screw mechanism 33 is mounted at the end of the second slide rail seat 32. Similarly, the displacement of the second transverse movement mechanism 4 on the second slide rail seat 32 is adjusted by the second drive motor 34 and the second lead screw mechanism 33.

[0037] The second transverse mechanism 4 includes a crossbeam 41 slidably mounted on the second slide rail seat 32, and the nut of the second lead screw mechanism 33 is fixed on the crossbeam 41. A third slide rail seat 42 and a third lead screw mechanism 43 are mounted on the crossbeam 41. A third drive motor 44 for driving the third lead screw mechanism 43 is mounted at the end of the third slide rail seat 42, and the mounting plate 51 is slidably mounted on the third slide rail seat 42. The nut of the third lead screw mechanism 43 is fixed on the mounting plate 51, thereby adjusting the displacement of the mounting plate 51 on the third slide rail seat 42 through the third drive motor 44 and the third lead screw mechanism 43.

[0038] Among them, the first drive motor 23, the second drive motor 34, and the third drive motor 44 are all reversible motors and are controlled by the PLC control box in the production line. The circuit part can use existing technology. The first lead screw mechanism 22, the second lead screw mechanism 33, and the third lead screw mechanism 43 can all use existing structures, and displacement adjustment is achieved by using screw engagement and sliding engagement.

[0039] In addition, all fastenings mentioned in this embodiment are bolted connections, which are detachable.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A structure for press-fitting valve sleeves, comprising an X-axis, a Y-axis, and a Z-axis, characterized in that: It includes a base (1) and a first transverse mechanism (2) mounted on the base (1), a longitudinal mechanism (3) mounted on the first transverse mechanism (2), a second transverse mechanism (4) mounted on the longitudinal mechanism (3), and a support base (5) mounted on the second transverse mechanism (4); The first transverse mechanism (2) adjusts the displacement of the longitudinal mechanism (3) along the X-axis, the longitudinal mechanism (3) adjusts the displacement of the second transverse mechanism (4) along the Y-axis, and the second transverse mechanism (4) adjusts the displacement of the support (5) along the Z-axis. The end of the support base (5) is fixed with a rotating base (6), a connecting rod (7) is rotatably mounted on the rotating base (6), a press-fitting block (8) with a matching valve sleeve structure is fixed on the connecting rod (7), and multiple positioning parts (9) that extend into the valve sleeve for positioning are provided on the press-fitting block (8).

2. The structure for press-fitting valve sleeves according to claim 1, characterized in that: The rotating seat (6) includes a first seat body (61) fixed on the support seat (5), a first locking seat (62) is fastened on the first seat body (61), the first locking seat (62) is provided with an inverted conical mounting hole (63), the upper end of the connecting rod (7) is engaged with the conical surface of the mounting hole (63) and extends out of the mounting hole (63), a pressure plate (64) is installed on the top of the connecting rod (7), and a plurality of balls (65) protruding from the pressure plate (64) are provided between the connecting rod (7) and the pressure plate (64). The first seat (61) is provided with a floating buffer (66), the bottom of which is in rolling engagement with the ball (65).

3. The structure for press-fitting valve sleeves according to claim 2, characterized in that: The press block (8) includes a first press seat (81) fastened to the lower end of the connecting rod (7), a second press seat (82) fastened to the first press seat (81), and the positioning member (9) passes through the second press seat (82) from one side of the first press seat (81) and protrudes from the end.

4. The structure for press-fitting valve sleeves according to claim 3, characterized in that: The first pressure seat (81) is provided with a stepped groove (83) for positioning the lower end face of the connecting rod (7).

5. The structure for press-fitting valve sleeves according to claim 4, characterized in that: The first pressure seat (81) has a countersunk hole (84) located on one side of the second pressure seat (82), and the countersunk hole (84) communicates with the stepped groove (83).

6. The structure for press-fitting valve sleeves according to claim 5, characterized in that: The positioning element (9) is a screw.

7. A structure for press-fitting valve sleeves according to any one of claims 1-6, characterized in that: The support base (5) includes a mounting plate (51) mounted on the second transverse mechanism (4) and an L-shaped hanging plate (52) mounted on the mounting plate (51), the hanging plate (52) being provided with reinforcing ribs (53); The rotating seat (6) is mounted on the hanging plate (52), and one end of the reinforcing rib (53) extends above the rotating seat (6).

8. The structure for press-fitting valve sleeves according to claim 7, characterized in that: The first transverse mechanism (2) includes a first slide rail seat (21) mounted on the base (1) and a first lead screw mechanism (22) mounted in the first slide rail seat (21). The end of the first slide rail seat (21) is equipped with a first drive motor (23) that drives the first lead screw mechanism (22) to move.

9. The structure for press-fitting valve sleeves according to claim 8, characterized in that: The longitudinal movement mechanism (3) includes a stand (31) slidably mounted on the first slide rail seat (21), and the nut of the first lead screw mechanism (22) is fixed to the bottom of the stand (31); The support frame (31) is equipped with a second slide rail seat (32) and a second lead screw mechanism (33) installed in the second slide rail seat (32). The end of the second slide rail seat (32) is equipped with a second drive motor (34) that drives the second lead screw mechanism (33) to move.

10. A structure for press-fitting valve sleeves according to claim 9, characterized in that: The second transverse mechanism (4) includes a crossbeam (41) slidably mounted on a second slide rail seat (32), and the nut of the second lead screw mechanism (33) is fixed on the crossbeam (41); a third slide rail seat (42) and a third lead screw mechanism (43) are mounted on the crossbeam (41), and a third drive motor (44) for driving the third lead screw mechanism (43) is mounted at the end of the third slide rail seat (42); The mounting plate (51) is slidably mounted on the third slide rail seat (42), and the nut of the third lead screw mechanism (43) is fixed on the mounting plate (51).

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