A high-pressure vibration damping hose crimping tool

Abstract

The present invention provides a high-pressure vibration damping hose crimping tool, which relates to the technical field of high-pressure vibration damping hose manufacturing, comprising: a tool base, two vertical plates are vertically welded above the tool base, and the upper ends of the vertical plates are fixedly connected to an upper support; the left and right ends of the upper surface of the tool base are both installed with a push hydraulic cylinder by bolts, and the push rod of the push hydraulic cylinder is fixedly connected to a connecting rod; three different separate tapered shafts with decreasing inner hole sizes of the tapered shaft are used to successively extrude the sleeve, so that the sleeve is gradually squeezed and contracted, and the crimping tightness of the externally threaded core tube and the rubber hose is gradually strengthened, the crimping difficulty and crimping strength of the high-pressure vibration damping hose are reduced, the sealing performance of the tube body is improved, and the problem that when the externally threaded core tube, sleeve and rubber hose are actually crimped and assembled, the pressing process is difficult to control, and the inconsistent fit of the rubber hose may cause bulging, leakage and other problems in the product during testing or use is solved.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure vibration damping hose manufacturing, in particular to a high-pressure vibration damping hose crimping tool. Background Art

[0002] High-pressure vibration damping hoses are mainly used in hydraulic and air systems. They are composed of an externally threaded core tube, a sleeve, and a rubber hose. During production, the surface rubber of the rubber hose end is first peeled off and then inserted into the sleeve (at this time, the outer circle of the sleeve is a corrugated surface and the inner hole is a cylindrical surface). Then, the externally threaded core tube is installed, and then the outer circle of the sleeve is pressed using a hydraulic press until the outer circle of the sleeve becomes a smooth cylindrical surface, ensuring that the rubber hose fits tightly between the externally threaded core tube and the sleeve. Although the existing high-pressure vibration damping hose assembly method can achieve the buckling assembly of the externally threaded core tube, sleeve, and rubber hose, it still has the following disadvantages;

[0003] When the external threaded core tube, sleeve and rubber hose are actually crimped and assembled, the pressing process is difficult to control and the inconsistent fit of the rubber hose may cause bulging, leakage and other problems during testing or use. Summary of the Invention

[0004] In view of this, the present invention provides a high-pressure vibration damping hose crimping tool, which solves the problem that when the external threaded core tube, sleeve and rubber hose are actually crimped and assembled, the pressing process is difficult to control, and the inconsistent degree of fit of the rubber hose may cause bulging, leakage and other problems in the product during testing or use.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: The purpose and efficacy of the high-pressure vibration damping hose crimping tool of the present invention are achieved by the following specific technical means:

[0006] The present invention provides a high-pressure vibration damping hose crimping tool, which specifically includes: a tool base, two vertical plates vertically welded above the tool base, and upper ends of the vertical plates are fixedly connected to upper supports; a push hydraulic cylinder is installed on the left and right ends of the upper surface of the tool base by bolts, and the push rod of the push hydraulic cylinder is fixedly connected to a connecting rod;

[0007] Preferably, the push base is provided with two mounting holes, the connecting rod passes through the mounting holes, the connecting rod is spirally connected with a first locking bolt and a second locking bolt, the first locking bolt and the second locking bolt are respectively attached to the lower surface and the upper surface of the push base, a tapered shaft fixing sleeve is fixedly installed in the middle above the upper support, a tapered cavity is provided in the center of the tapered shaft fixing sleeve, the inner wall of the tapered cavity is an inner conical surface, and the tapered end of the tapered cavity faces downward,

[0008] Preferably, the split tapered shaft is longitudinally divided into a first half-shell and a second half-shell, the split tapered shaft is installed in the tapered cavity of the tapered shaft fixing sleeve, a tapered shaft inner hole is provided through the center of the split tapered shaft, an outer conical surface is provided on the outer wall of the split tapered shaft, and the outer conical surface is in contact with the inner conical surface;

[0009] Preferably, the separable tapered shaft is in three pieces, and the inner diameter of the tapered shaft inner hole of each separable tapered shaft decreases.

[0010] Preferably, the pressing sleeve is located above the separable tapered shaft, and the lower surface of the pressing sleeve is provided with an externally threaded core tube with a circular cavity structure that is sleeved with the inner cavity.

[0011] Preferably, a circular assembly groove is provided at the center of the upper surface of the upper support, a support opening is provided through the center of the upper support, and the support opening, the assembly groove and the upper support are coaxial.

[0012] Preferably, the tapered shaft fixing sleeve is located inside the assembly groove, the bottom surface of the tapered shaft fixing sleeve is fitted with the bottom surface of the assembly groove, the outer wall of the tapered shaft fixing sleeve is fitted with the inner wall of the assembly groove, and the lower edge of the outer surface of the tapered shaft fixing sleeve is fixedly connected to the outer edge of the assembly groove by ring welding.

[0013] Preferably, two docking screw holes are opened on the front surface of the first half-shell, and the two docking screw holes are respectively located on the left and right sides of the inner hole of the tapered shaft, and the axes of the docking screw holes are perpendicular to the front surface of the separable tapered shaft.

[0014] Preferably, two half-tile guide holes with circular hole structures are opened in the front of the second half-tile, and a limiting guide hole is opened at the rear end of the half-tile guide hole. The half-tile guide hole and the limiting guide hole are coaxial, and the half-tile guide hole and the limiting guide hole are respectively located on the left and right sides of the inner hole of the tapered shaft.

[0015] Preferably, the rear end of the half-tile docking column is connected to a docking stud, the half-tile docking column is located inside the half-tile guide hole, and the half-tile docking column is slidably connected to the limiting guide hole.

[0016] Preferably, the docking stud is spirally connected to the docking screw hole, the front end of the half-tile docking stud is fixedly connected to a limiting rotary plate, and the outer wall of the limiting rotary plate fits the half-tile guide hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present application supports the tapered shaft fixing sleeve by setting an upper support, and installs a separate tapered shaft inside the tapered shaft fixing sleeve, and clamps the sleeve through the separate tapered shaft with a split structure and the action of the two tapered surfaces. At the same time, the sleeve is sleeved on the outside of the rubber hose, and the externally threaded core tube is inserted into the inside of the rubber hose. When the upper end of the externally threaded core tube is pushed downward by the hydraulic press, the separate tapered shaft is pushed downward by the externally threaded core tube, and the first half-wafer and the second half-wafer inside the inner cone surface are brought close to each other under the action of the two tapered surfaces, squeezing the sleeve in the inner hole of the tapered shaft to deform the sleeve, and squeezing and locking the rubber hose and the externally threaded core tube. Three different separate tapered shafts with decreasing inner hole sizes of the tapered shafts are used to squeeze the sleeve in turn, so that the sleeve is gradually squeezed and contracted, and the buckling tightness of the externally threaded core tube and the rubber hose is gradually strengthened, thereby reducing the buckling difficulty and buckling strength of the high-pressure shock-absorbing hose and improving the sealing performance of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0020] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached figure:

[0022] Figure 1 It is a structural schematic diagram of a high-pressure vibration-damping hose crimping tooling of the present invention.

[0023] Figure 2 The figure is a schematic top view of the structure of a high-pressure vibration damping hose crimping tooling of the present invention in a disassembled state.

[0024] Figure 3 The figure is a top view structural schematic diagram of a high-pressure vibration-damping hose crimping tooling of the present invention.

[0025] Figure 4 This invention Figure 3 AA section view.

[0026] Figure 5 It is a schematic diagram of the internal structure of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the separable tapered shaft of the present invention.

[0028] Figure 7 This invention Figure 6 Front view of.

[0029] Figure 8 This invention Figure 7 BB cross-sectional view.

[0030] Figure 9It is a schematic structural diagram of the separable tapered shaft of the present invention in a separated state.

[0031] Figure 10 It is a structural schematic diagram of the present invention in which the first half tile, the second half tile and the half tile docking column are separated.

[0032] Figure 11 It is a structural schematic diagram of the upper support of the present invention.

[0033] Figure 12 It is a structural schematic diagram of the push base of the present invention.

[0034] Reference Signs List

[0035] 1. Tooling base; 101. Vertical plate; 102. Upper support; 103. Assembly groove; 104. Support opening; 2. Push hydraulic cylinder; 201. Connecting rod; 202. First locking bolt; 203. Second locking bolt; 3. Push base; 301. Annular seat; 302. Mounting hole; 4. Tapered shaft fixing sleeve; 401. Inner conical surface; 5. Separate tapered shaft; 501. First half-tile; 502. Second half-tile; 503. Inner hole of tapered shaft; 504. Outer conical surface; 505. Docking screw hole; 506. Half-tile guide hole; 507. Limiting guide hole; 6. Crimp sleeve; 601. Externally threaded core tube sleeved into inner cavity; 7. Half-tile docking column; 701. Docking stud; 702. Limiting rotary plate. DETAILED DESCRIPTION

[0036] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0037] Example 1:

[0038] Please refer to Figures 1 to 9 :

[0039] The present invention proposes a high-pressure vibration damping hose crimping tool, comprising: a tool base 1, two vertical plates 101 vertically welded above the tool base 1, the upper ends of the vertical plates 101 being fixedly connected to upper supports 102; a push hydraulic cylinder 2 is mounted on the left and right ends of the upper surface of the tool base 1 via bolts, the push rod of the push hydraulic cylinder 2 being fixedly connected to a connecting rod 201, and the push axis of the push hydraulic cylinder 2 is perpendicular to the upper surface of the tool base 1;

[0040] The first and second locking bolts 203 are respectively fitted with the lower and upper surfaces of the push base 3, and the first and second locking bolts 202 are respectively fitted with the second locking bolts 203. The first and second locking bolts 203 are respectively fitted with the lower and upper surfaces of the push base 3, and the first and second locking bolts 202 are respectively fitted with the second locking bolts 203. The push base 3 is limited by the first and second locking bolts 202 and 203, so that the push base 3 is fixedly connected to the connecting rod 201. The push base 3 can be controlled to rise or fall by the push hydraulic cylinder 2. When the high-pressure shock-absorbing hose completes the buckling of the sleeve, the push base 3 is controlled to rise by the push hydraulic cylinder 2, and the separate tapered shaft 5 is pushed upward by the annular seat 301, so that the separate tapered shaft 5 is disengaged from the tapered shaft fixing sleeve 4, which facilitates the unloading of the high-pressure shock-absorbing hose after assembly.

[0041] Furthermore, a tapered shaft fixing sleeve 4 is fixedly installed in the middle above the upper support 102, and a tapered cavity is opened in the center of the tapered shaft fixing sleeve 4, and the inner wall of the tapered cavity is an inner conical surface 401, and the tapered end of the tapered cavity faces downward, and the detachable tapered shaft 5 is installed in the tapered cavity of the tapered shaft fixing sleeve 4, and a tapered shaft inner hole 503 is opened through the center of the detachable tapered shaft 5, and the outer wall of the detachable tapered shaft 5 is provided with an outer conical surface 504, and the outer conical surface 504 is in contact with the inner conical surface 401; through the structure of the outer conical surface 504 and the inner conical surface 401, the first half-shell 501 and the second half-shell 502 in the two separated states are merged during the downward movement of the detachable tapered shaft 5, and the sleeve is compressed toward the axial direction through the tapered shaft inner hole 503, so that it is deformed and the external threaded core tube and the rubber hose are tightly buckled.

[0042] Furthermore, the detachable tapered shaft 5 is made of three pieces, and the inner diameter of the tapered shaft inner hole 503 of each detachable tapered shaft 5 is gradually reduced; first, select a detachable tapered shaft 5 with the largest tapered shaft inner hole 503, insert the inner end of the externally threaded core tube into the rubber hose, sleeve the sleeve at the overlapping position of the externally threaded core tube and the rubber hose, and pass the rubber hose longitudinally from top to bottom through the tapered shaft fixing sleeve 4, the pushing base 3 and the support opening 104, so that the sleeve is located inside the tapered shaft inner hole 503 of the detachable tapered shaft 5 in the detached state, and place the detachable tapered shaft 5 in the inner conical surface 401, and insert the upper end of the externally threaded core tube into the buckling sleeve 6, and apply vertical downward pressure to the buckling sleeve 6 through the hydraulic press, so that the externally threaded core tube pushes the detachable tapered shaft 5 downward, and as the detachable tapered shaft 5 moves downward, the inner conical surface 401 and the outer conical surface 504 are aligned. In coordination, the first half-wall 501 and the second half-wall 502 are merged inward, and the sleeve is tightened so that the sleeve tightly squeezes the rubber hose and the external threaded core tube, and the two are initially buckled and fixed, and then the separate tapered shaft 5 is removed, and the separate tapered shaft 5 with the middle inner diameter of the tapered shaft inner hole 503 among the three separate tapered shafts 5 is installed on the sleeve that has completed the initial shrinkage, and installed it into the inner conical surface 401. The separate tapered shaft 5 is merged in the same way to further shrink the sleeve. After removing the separate tapered shaft 5, the separate tapered shaft 5 with the smallest tapered shaft inner hole 503 is installed on the sleeve and installed into the inner conical surface 401 again. The separate tapered shaft 5 is merged in the same way to shrink the sleeve to the final state, so that the sleeve, the rubber hose and the external threaded core tube are tightly buckled and connected in the final state.

[0043] Furthermore, the pressing sleeve 6 is located above the separable conical shaft 5, and the lower surface of the pressing sleeve 6 is provided with an externally threaded core tube socket inner cavity 601 with a circular cavity structure; the upper end of the externally threaded core tube is inserted into the internal cavity 601 of the externally threaded core tube socket, and the pressing sleeve 6 is pressed downward by a hydraulic press, which can protect the end of the externally threaded core tube and reduce the wear of the end face of the pressing sleeve 6.

[0044] Furthermore, a circular assembly groove 103 is opened in the center of the upper surface of the upper support 102, and the tapered shaft fixing sleeve 4 is located inside the assembly groove 103. The bottom surface of the tapered shaft fixing sleeve 4 is fitted with the bottom surface of the assembly groove 103, and the outer wall of the tapered shaft fixing sleeve 4 is fitted with the inner wall of the assembly groove 103. The lower edge of the outer surface of the tapered shaft fixing sleeve 4 is fixedly connected to the outer edge of the assembly groove 103 by ring welding; the tapered shaft fixing sleeve 4 is radially limited by the assembly groove 103, which facilitates the accurate and stable installation of the tapered shaft fixing sleeve 4.

[0045] Furthermore, a support opening 104 is opened through the center of the upper support 102, and the support opening 104 and the assembly groove 103 are coaxial with the upper support 102; the shock-absorbing hose body passes longitudinally through the support opening 104, which facilitates the layout of the shock-absorbing hose during the crimping process.

[0046] The present application supports the tapered shaft fixing sleeve 4 by setting the upper support 102, and installs the separated tapered shaft 5 inside the tapered shaft fixing sleeve 4. The sleeve is clamped by the separated tapered shaft 5 of the split structure and the action of the two conical surfaces. At the same time, the sleeve is sleeved on the outside of the rubber hose, and the external threaded core tube is inserted into the inside of the rubber hose. When the upper end of the external threaded core tube is pushed downward by the hydraulic press, the separated tapered shaft 5 is pushed downward by the external threaded core tube, and the inner conical surface 4 is clamped under the action of the two conical surfaces. The first half-walled shell 501 and the second half-walled shell 502 inside 01 are close to each other, squeezing the sleeve in the inner hole 503 of the tapered shaft to deform the sleeve, squeezing and locking the rubber hose and the external threaded core tube, and using three different separate tapered shafts 5 with decreasing sizes of the inner hole 503 of the tapered shaft to squeeze the sleeve in turn, so that the sleeve is gradually squeezed and contracted, and the buckling tightness of the external threaded core tube and the rubber hose is gradually strengthened, thereby reducing the buckling difficulty and buckling strength of the high-pressure shock-absorbing hose and improving the sealing performance of the tube body.

[0047] Example 2:

[0048] On the basis of Example 1, two docking screw holes 505 are provided on the front surface of the first half-tile 501, and the two docking screw holes 505 are respectively located on the left and right sides of the tapered shaft inner hole 503, and the axes of the docking screw holes 505 are perpendicular to the front surface of the detachable tapered shaft 5; two half-tile guide holes 506 with circular hole structures are provided in front of the second half-tile 502, and a limiting guide hole 507 is provided at the rear end of the half-tile guide hole 506, and the half-tile guide hole 506 is coaxial with the limiting guide hole 507, and the half-tile guide hole 506 and the limiting guide hole 507 are respectively located on the left and right sides of the tapered shaft inner hole 503; the rear end of the half-tile docking column 7 is connected with a docking stud 701, the half-tile docking column 7 is located inside the half-tile guide hole 506, and the half-tile docking column 7 is slidably connected to the limiting guide hole 507; the docking stud 701 is spirally connected to the docking screw hole 505, and the front end of the half-tile docking column 7 is fixedly connected to the limited rotation Plate 702, the outer wall of the limiting rotary plate 702 fits the half-tile guide hole 506; the first half-tile 501 and the second half-tile 502 are connected by the half-tile docking column 7, and the second half-tile 502 is slidably connected to the half-tile docking column 7, thereby adjusting the distance between the first half-tile 501 and the second half-tile 502. When assembling the separate conical shaft 5, first merge the first half-tile 501 and the second half-tile 502, and insert the docking stud 701 of the half-tile docking column 7 into the half-tile guide hole 506, so that the docking stud 701 passes through the limiting guide hole 507 and contacts the outer end of the docking screw hole 505, rotate the half-tile docking column 7 so that the docking stud 701 is spirally connected to the half-tile guide hole 506, and the assembly of the separate conical shaft 5 is completed. The separate conical shaft 5 is easy to assemble, convenient for the production and maintenance of equipment, and the separate conical shaft 5 in the disassembled state is convenient for the installation of workpieces.

[0049] In the present invention, unless otherwise expressly specified or limited, the terms "install," "connect," "connect," "fix," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. There are various ways to detachably install, such as by plugging and snapping together, or by bolting.

[0050] The above clearly and completely describes the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention.

[0051] Obviously, the embodiments described herein are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments derived by those skilled in the art without inventive effort are all within the scope of protection of the present invention. Furthermore, all the connections / connections mentioned herein do not refer solely to direct connection of components, but rather to the possibility of forming a more optimal connection structure by adding or removing auxiliary connection components according to specific implementation circumstances.

[0052] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A high-pressure vibration damping hose crimping tool, characterized in that: include: A tool base (1), wherein two vertical plates (101) are vertically welded above the tool base (1), and the upper ends of the vertical plates (101) are fixedly connected to upper supports (102); a push hydraulic cylinder (2) is mounted on the left and right ends of the upper surface of the tool base (1) via bolts, and a push rod of the push hydraulic cylinder (2) is fixedly connected to a connecting rod (201); A push base (3), wherein the push base (3) is provided with two mounting holes (302), a connecting rod (201) passes through the mounting holes (302), a first locking bolt (202) and a second locking bolt (203) are spirally connected to the connecting rod (201), and the first locking bolt (202) and the second locking bolt (203) are respectively attached to the lower surface and the upper surface of the push base (3); A conical shaft fixing sleeve (4) is fixedly installed in the middle of the upper support (102), and a conical cavity is opened in the center of the conical shaft fixing sleeve (4), the inner wall of the conical cavity is an inner conical surface (401), and the conical end of the conical cavity faces downward; A separate tapered shaft (5), wherein the separate tapered shaft (5) is installed in the tapered cavity of the tapered shaft fixing sleeve (4), a tapered shaft inner hole (503) is provided through the center of the separate tapered shaft (5), an outer tapered surface (504) is provided on the outer wall of the separate tapered shaft (5), the outer tapered surface (504) is fitted with the inner tapered surface (401), and the separate tapered shaft (5) is longitudinally divided into a first half-shell (501) and a second half-shell (502) by centering. Through the structure of the outer tapered surface (504) and the inner tapered surface (401), the first half-shell (501) and the second half-shell (502) in the two separated states are merged during the downward movement of the separate tapered shaft (5), and the sleeve is compressed toward the axial direction through the tapered shaft inner hole (503), so that the sleeve is deformed and the external thread core tube and the rubber hose are tightly buckled; The separate tapered shaft (5) is in three pieces, and the inner diameter of the tapered shaft inner hole (503) of each separate tapered shaft (5) decreases in size. The three different separate tapered shafts (5) with tapered shaft inner holes (503) of decreasing size are used to extrude the sleeve in sequence, so that the sleeve is gradually extruded and contracted; A pressing sleeve (6) is located above the split tapered shaft (5).

2. The high-pressure vibration damping hose crimping tool according to claim 1, characterized in that: A circular assembly groove (103) is provided at the center of the upper surface of the upper support (102), and a support opening (104) is provided through the center of the upper support (102). The support opening (104) and the assembly groove (103) are coaxial with the upper support (102).

3. The high-pressure vibration damping hose crimping tool according to claim 2, characterized in that: The tapered shaft fixing sleeve (4) is located inside the assembly groove (103), the bottom surface of the tapered shaft fixing sleeve (4) is fitted with the bottom surface of the assembly groove (103), the outer wall of the tapered shaft fixing sleeve (4) is fitted with the inner wall of the assembly groove (103), and the lower edge of the outer surface of the tapered shaft fixing sleeve (4) is fixedly connected to the outer edge of the assembly groove (103) by girth welding.

4. The high-pressure vibration damping hose crimping tool according to claim 1, characterized in that: The front surface of the first half-shell (501) is provided with two docking screw holes (505), which are respectively located on the left and right sides of the tapered shaft inner hole (503), and the axes of the docking screw holes (505) are perpendicular to the front surface of the separable tapered shaft (5).

5. The high-pressure vibration damping hose crimping tool according to claim 4, characterized in that: Two half-tile guide holes (506) with circular hole structures are provided in front of the second half-tile (502), and a limiting guide hole (507) is provided at the rear end of the half-tile guide hole (506). The half-tile guide hole (506) and the limiting guide hole (507) are coaxial, and the half-tile guide hole (506) and the limiting guide hole (507) are respectively located on the left and right sides of the tapered shaft inner hole (503).

6. The high-pressure vibration damping hose crimping tool according to claim 1, characterized in that: The lower surface of the buckling sleeve (6) is provided with an externally threaded core tube with a circular cavity structure and an internal cavity (601).

7. The high-pressure vibration damping hose crimping tool according to claim 5, characterized in that: A half-tile docking column (7) is provided inside the half-tile guide hole (506), a docking stud (701) is connected to the rear end of the half-tile docking column (7), and the half-tile docking column (7) is slidably connected to the limiting guide hole (507).

8. The high-pressure vibration damping hose crimping tool according to claim 7, characterized in that: The docking stud (701) is spirally connected to the docking screw hole (505), the front end of the half-tile docking column (7) is fixedly connected to the limiting rotary plate (702), and the outer wall of the limiting rotary plate (702) fits the half-tile guide hole (506).

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