Rubber tube buckling and pressing device

Abstract

The rubber tube buckling device comprises a mold buckling module, a servo output module, a mold clamping self-locking module and a buckling piece body, the mold buckling module is located on the inner side where the buckling piece body is located and composed of an upper module and a lower module, and an embedding opening is formed in the combining end face where the upper module and the lower module are located; the embedding openings in the upper and lower positions form through holes for the rubber pipe fitting to penetrate through; the two servo output modules are arranged on the side edge of the buckling and pressing piece body in parallel, and each servo output module conducts secondary pressing on the outer wall of the rubber pipe borne by the upper module and the lower module. And the clamping die self-locking module is positioned above the upper module to downwards extrude and press the upper module. A clamping die self-locking module adopted by the device is divided into an upper module and a lower module, a rubber pipe can be fixed in the upper direction and the lower direction firstly, and the outer wall of the rubber pipe is pressed and clamped by driving an embedded tooth block to further move an extrusion position towards the center position.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe crimping and combining equipment, and in particular relates to a hose crimping device. Background Art

[0002] Hose crimping machine, commonly known as crimping machine, tube crimping machine or tube locking machine, is a hydraulic device used to crimp hydraulic joints and pipe assemblies. Its main function is to apply contraction force through the crimping machine die to firmly crimp the metal joint onto the matching hydraulic and rubber hoses.

[0003] This equipment is widely used in engineering machinery maintenance, agricultural machinery production, oil fields, mining development and other industries. There are many types of crimping machines, which can be used for crimping hoses of different specifications, with the characteristics of high precision and high efficiency.

[0004] However, there are many types of hose crimping machines available. If the size is too small, the joint and the hose may be pressed too loosely, which may cause the hose to come out of the joint during initial use. If the size is too large, the joint and the hose may be pressed too tightly, causing local damage to the inner layer of the hose and cracks. In addition, the crimping process may occur too quickly, which may cause the hose to be damaged prematurely during use.

[0005] In the Chinese patent application publication number CN208132640U, a hose joint crimping machine is disclosed, and the key points of its technical solution are that it includes a frame, a crimping mechanism located on the frame, a power mechanism that provides power for the crimping mechanism, and a control mechanism that controls the power mechanism. The crimping mechanism includes a circular crimping frame, a crimping plate connected to the crimping frame, a crimping tooth located in the crimping frame, and a hose with a flat end and a through hole. The power mechanism includes an oil pump motor and an oil pipeline. One end of the oil pipeline is connected to the oil pump motor, and the other end is connected to the crimping frame. When the hose joint crimping machine is crimping the hose and the joint, when the hose with the joint is inserted into the crimping machine, the joint is prevented from slipping out of the hose. However, the pressure of this joint method is insufficient in actual use, and the crimping is too fast, which will cause the hose to be damaged prematurely during use, affecting the quality. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hose crimping device to solve the above-mentioned technical problems existing in the prior art.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A hose crimping device comprises a mold crimping module, a servo output module, a clamping die self-locking module, and a crimping part body.

[0009] The mold crimping module is located on the inner side of the crimping part body, and is composed of an upper module and a lower module. An embedding opening is provided at the joint end surface where the upper module and the lower module are located, so that when the upper module and the lower module are attached to each other, the embedding openings at the upper and lower positions form a through hole for the rubber hose to pass through;

[0010] The servo output modules are provided in two groups, which are arranged in parallel on the side of the buckling part body, and each group of servo output modules respectively forms a secondary compression on the outer wall of the hose carried by the upper module and the lower module;

[0011] The clamping die self-locking module is located above the upper die module, forming a downward extrusion and pressing force on the upper die module.

[0012] Furthermore, transverse sliding blocks are respectively arranged at the top of the upper module and the bottom of the lower module, so that the upper module and the lower module can move transversely along the slideway direction of the sliding blocks;

[0013] The upper module and the lower module have the same structure and are arranged in a mirror-symmetrical manner in the up and down directions.

[0014] Furthermore, the upper module comprises a fixed cavity and an embedded tooth block, and the fixed cavity is provided with a plurality of groups of wedge blocks distributed radially along the outer circumference of the outer edge where the embedding opening is located, and the gap between two adjacent groups of wedge blocks is used to carry the embedded tooth block and realize the reciprocating motion of the embedded tooth block along the gap between the wedge blocks;

[0015] An arc-shaped pressing block is arranged at the top where the embedded tooth block is located, so that the arc-shaped surface of the lower end of the arc-shaped pressing block simultaneously forms contact with the top of the embedded tooth block, and by pressing down the arc-shaped pressing block, multiple embedded tooth blocks are simultaneously pressed down, so that the embedded tooth block is tightened to the upper inner diameter of the embedding port.

[0016] Furthermore, the top side edge of the arc pressure block is arranged as an inclined surface, and an inclined push block is arranged at the output end where the servo output module is arranged, so that the front end surface of the inclined push block is embedded in the inclined surface of the top side edge of the arc pressure block, and the lateral force is converted into vertical force by driving the power output of the servo output module, thereby realizing the downward pressing movement of the arc pressure block in the vertical direction.

[0017] Furthermore, the inclination angle of the top side slope of the arc-shaped pressing block is 10-15°.

[0018] At the same time, the contact surface between the front end of the oblique push block and the arc-shaped pressing block is a groove surface.

[0019] Furthermore, a vertical slideway is provided at the output end of the oblique push block located at the servo output module, and a sliding connection is achieved between the end of the oblique push block and the vertical slideway.

[0020] Furthermore, the front end surface of the embedded tooth block is provided with several groups of protrusions perpendicular to the central axis direction of the embedding port, so that the protrusions of the embedded tooth block protrude from the inner side surface of the wedge block when squeezed, and form a tight pressure on the outer wall of the hose.

[0021] Furthermore, the rear end portion of the oblique push block is a wide surface structure, so that its wide surface is slidably connected with the vertical slideway, and a limiting column is arranged on the side where the arc-shaped pressure block is located, so that the limiting column forms a position limit for the oblique push block during lateral movement.

[0022] Furthermore, a notch is provided on the side where the embedded tooth block is located, and the direction in which the notch is provided is consistent with the extending movement direction of the embedded tooth block;

[0023] A return spring and a positioning pin are arranged in the notch, one end of the positioning pin passes through and is fixed on the outer plate of the embedded gear block, and the other end is located in the cavity where the notch is located, so that the embedded gear block moves along the extension direction of the notch where the positioning pin is located;

[0024] At the same time, the reset spring member is located in the cavity between the positioning pin and the other end of the notch, thereby resetting the embedded tooth block.

[0025] Furthermore, the clamping die self-locking module comprises a pressing member, a lower pressing hammer, and a hinged member, wherein the lower pressing hammer is located above the upper module, and the pressing member forms a vertical movement of the lower pressing hammer through the hinged member;

[0026] Furthermore, the pressing member, the pressing hammer and the hinged member are not located on the same axis.

[0027] Beneficial effects of the present invention:

[0028] 1. The clamping self-locking module used in this device is divided into an upper module and a lower module, which can first fix the hose from the upper and lower directions, and then drive the embedded gear block to further move the extrusion position to the center position, thereby forming a tight clamping on the outer wall of the hose.

[0029] 2. The servo output module used in this device converts lateral power into vertical power, saving the lack of vertical space for the overall equipment. The servo output module uses an oblique push block to cooperate with the bottom of the arc-shaped pressure block during extrusion. In this extrusion method, when a smaller inclination angle is used, the contact area between the front end of the oblique push block and the top inclined surface of the arc-shaped pressure block is increased, making it more stable when moving. Its gravity component decreases along the inclined direction, and its static friction is sufficient to provide sufficient stability.

[0030] 3. The upper module and the lower module used in this device have the same structure, so the wedge block on the fixed cavity and the embedded tooth block can be used in coordination with each other, which is convenient for disassembly and assembly, and can also effectively realize mechanical control to meet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0032] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the internal structure of an embodiment of the present invention;

[0034] Figure 3 is a schematic structural diagram of a servo output module according to an embodiment of the present invention;

[0035] Figure 4 2 is a schematic diagram of the overall structure of the clamping die self-locking module according to an embodiment of the present invention;

[0036] Figure 5 Schematic diagram of the internal structure of the clamping self-locking module of an embodiment of the present invention;

[0037] Figure 6 The embodiment of the present invention Figure 5 Schematic diagram of the partial structure at A in the middle;

[0038] Figure 7 is a schematic diagram of a fixed cavity structure according to an embodiment of the present invention;

[0039] Figure 8 is a schematic diagram of the structure of an arc-shaped pressing block according to an embodiment of the present invention;

[0040] Fig. 9 is a schematic diagram of the structure of an embedded gear block according to an embodiment of the present invention;

[0041] Fig.10 2 is a schematic diagram of the structure of the oblique push block according to an embodiment of the present invention;

[0042] Fig.11 1 is a schematic diagram of the structure of the clamping self-locking module of the embodiment of the present invention in the state before being pressed;

[0043] Fig.12 It is a schematic diagram of the structure of the clamping self-locking module in the state of being compressed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a hose crimping device, including a mold crimping module 1, a servo output module 2, a clamping die self-locking module 3, and a crimping member body 4.

[0046] The mold crimping module 1 is located on the inner side of the crimping part body 4 (that is, the crimping part body 4 is located at both sides and is set as a baffle, and the middle part forms a cavity structure for accommodating the mold crimping module 1). The mold crimping module 1 is composed of an upper module 11 and a lower module 12, and an embedding port 101 is opened at the joint end surface where the upper module 11 and the lower module 12 are located, so that when the upper module 11 and the lower module 12 are fitted with each other, the embedding port 101 located at the upper and lower positions forms a through-hole-like structure as a whole, which is used for the hose to pass through / carry.

[0047] like Figure 3 As shown, two groups of servo output modules 2 are provided, which are arranged in parallel on the side of the buckle body 4, and each group of servo output modules 2 respectively forms a secondary compression on the outer wall of the hose carried by the upper module 11 and the lower module 12;

[0048] like Figure 7 As shown, the upper module 11 includes a fixed cavity 13 and an embedded tooth block 14. The fixed cavity 13 is provided with a plurality of groups of wedge blocks 131 distributed radially along the outer circumference of the outer edge where the embedding port 101 is located (two adjacent groups of wedge blocks 131 are arranged at equal intervals), and the gap between the two adjacent groups of wedge blocks 131 is used to carry the embedded tooth block 14, and realize the reciprocating motion of the embedded tooth block 14 along the gap between the wedge blocks 131 (that is, reciprocating motion is formed in the penetration direction of the gap toward the center position where the embedding port 101 is located, thereby forming an extrusion on the outer wall of the hose located at the position where the embedding port 101 is located);

[0049] like Figure 8As shown, an arc-shaped pressing block 141 is provided at the top where the embedded tooth block 14 is located, so that the arc surface of the lower end of the arc-shaped pressing block 141 simultaneously forms a contact extrusion on the top of the embedded tooth block 14 (because the wedge blocks 131 are distributed circumferentially along the embedding port 101, that is, annularly distributed, the embedded tooth block 14 is also annularly distributed in the gap position between two adjacent groups of wedge blocks 131, and the overall distribution is annular, and its upper part synchronously forms an annular structure, that is, in order to achieve uniform force extrusion on multiple embedded tooth blocks 14 at the same time, it is necessary to set the lower end of the arc-shaped pressing block 141 to an arc surface shape, so that it forms a compression with the arc surface structure formed by the upper ends of the multiple embedded tooth blocks 14, that is, the multiple embedded tooth blocks 14 are uniformly stressed when pressurized by the arc-shaped pressing block 141), so that the front end of the embedded tooth block 14 is tightened to the upper inner diameter of the embedding port 101, that is, the outer wall of the hose carried by the embedding port 101 is compressed.

[0050] In order to ensure that the arc-shaped pressing block 132 is evenly compressed, but the space in the upper and lower directions where the arc-shaped pressing block 132 is located is limited, the present application adopts a servo output module 2 arranged horizontally to output the vertical force generated on the arc-shaped pressing block 132, which greatly saves the space limitation from the upper and lower directions. At this time, the top side edge where the arc-shaped pressing block 132 is located is set as an inclined surface, and at the same time, an inclined push block 201 (such as Fig.10 As shown), the front end surface of the oblique push block 201 is embedded in the top side inclined surface of the arc-shaped pressing block 132, and the lateral force is converted into vertical force by driving the power output of the servo output module 2, thereby realizing the downward pressing movement of the arc-shaped pressing block 132 in the vertical direction.

[0051] At this time, the inclination angle of the top side slope of the arc-shaped pressing block 132 is 10-15°, and the contact surface between the front end of the oblique push block 201 and the arc-shaped pressing block 132 is a groove surface. At this time, the contact surface between the front end of the oblique push block 201 and the top slope of the arc-shaped pressing block 132 is increased, and the movement is more stable. Its gravity component decreases along the direction of the slope, and its static friction is sufficient to provide sufficient stability. When the inclination angle is too large, the front end of the oblique push block 201 is easy to slide down due to the gravity component along the direction of the slope. Within the small inclination angle range of the present application, it can effectively ensure the stable output of the oblique push block 201 during the propulsion process.

[0052] The rear end portion where the oblique push block 201 is located is a wide surface structure, and a vertical slideway is provided at the output end of the servo output module 2, and the end of the oblique push block 201 is slidably connected to the vertical slideway. The wide surface of the oblique push block 201 is slidably connected to the servo output module 2 in the vertical slideway (the contact surface with the servo output module 2 is also increased at this time, so that the displacement in the vertical direction during the advancement of the oblique push block 201 can be decomposed through the vertical slideway, and the oblique push block 201 will not be deformed in the vertical direction during the advancement process), and a limiting column 133 (such as Figure 4 As shown in the figure, the limiting column 133 forms a position limit for the oblique push block 201 during lateral movement. When the oblique push block 201 exceeds the movement stroke during lateral movement, there is still a protruding limiting column 133 on the side of the arc-shaped pressing block 132. Even if the oblique push block 201 is subjected to destructive stamping, it will be limited by the limiting column 133, thereby reducing the direct stamping damage of the oblique push block 201 to the arc-shaped pressing block 132.

[0053] A notch 140 is provided on the side where the embedded tooth block 14 is located (ie, near the outer wall), and the opening direction of the notch 140 is consistent with the extending movement direction of the embedded tooth block 14;

[0054] like Figure 5 , Figure 6 As shown, a return spring member 1401 and a positioning pin 1402 are disposed in the notch 140 , with one end of the positioning pin 1402 passing through and fixed on the outer plate of the embedded gear block 14 , and the other end being located in the cavity where the notch 140 is located.

[0055] like Fig.11 As shown, at the beginning, the embedded tooth block 14 is ejected outward under the action of the return spring member 1401, that is, space is freed up for placing the hose at the position of the embedding port 101 (at this time, the upper module 11 and the lower module 12 are in a state of separation from each other), and then the lower module 12 is pressed down under the action of the clamping die self-locking module 3, thereby achieving the matching of the position of the embedding port 101. At this time, it is used to fix the outer diameter of the hose, that is, only the wedge block 131 on the fixed cavity 12 is used to form a load on the outer diameter of the hose. When it is used specifically, the hose at the other end of the workpiece to be processed is directly passed through this position.

[0056] like Fig.12As shown, subsequently, under the action of the servo output module 2, a lateral force is simultaneously formed on the upper module 11 and the lower module 12, so that the embedded tooth block 14 moves along the extension direction of the slot 140 where the positioning pin 1402 is located. At this time, the movement of the embedded tooth block 14 will not affect the fixation of the positioning pin 1402 (the positioning pin 1402 and the outer wall are fixed in a fixed manner), and the front end of the embedded tooth block 14 forms a compression on the outer wall of the hose. During the movement, the reset spring member 1401 is in a compressed state (the relative position of the positioning pin 1402 does not change), thereby forming a compression of the outer wall of the hose located on the embedding port 101 by the embedded tooth block 14 (by moving the embedded tooth block 14 to the center position, the inner diameter of the center hole where the embedding port 101 is located is reduced), thereby achieving compression of the outer walls of the two mutually coupled hoses.

[0057] Then, the servo output module 2 completes the reset. At this time, the embedded tooth block 14 will also complete the reset of the embedded tooth block 14 under the action of the reset spring member 1401 .

[0058] At the same time, the reset spring member 1401 is located in the cavity between the positioning pin 1402 and the other end of the notch 140 , thereby resetting the embedded tooth block 14 .

[0059] A transverse sliding block 15 is respectively arranged at the top of the upper module 11 and the bottom of the lower module 12, so that the upper module 11 and the lower module 12 can move laterally along the slide direction of the sliding block 15; that is, when the oblique push block 201 produces extrusion toward the top of the arc-shaped pressure block 132, the setting of the sliding block 15 can ensure that the upper module 11 or the lower module 12 has a certain movement margin when it is output laterally, thereby reducing the extrusion damage to the upper module 11 or the lower module 12 during the lateral movement.

[0060] The upper module 11 and the lower module 12 adopt the same structure and are arranged in a mirror-symmetrical manner in the upper and lower directions, which can improve the versatility of the overall accessories of the equipment, including the fixed cavity, embedded gear block, and arc-shaped pressure block are all common parts of the upper and lower modules, facilitating the adaptability of assembly.

[0061] like Fig. 9 As shown, the front end surface of the embedded tooth block 14 is provided with a plurality of groups of protrusions 142 perpendicular to the central axis direction of the embedding port 101, so that the protrusions 142 of the embedded tooth block 14 protrude from the inner side surface where the wedge block 131 is located when squeezed (that is, it moves toward the center position of the embedding port 101, and the embedded tooth block located on the lower module 12 also moves in the same way), thereby forming a compression on the outer wall of the hose as a whole, thereby improving the firmness of the compression.

[0062] like Figure 2As shown, the clamping die self-locking module 3 is located above the upper module 11, forming a downward squeeze and pressing of the upper module 11. The clamping die self-locking module 3 includes a clamping member 31, a lower pressing hammer 32, and a hinge 33. The lower pressing hammer 32 is located above the upper module 11 (the clamping member 31 is arranged obliquely, and this arrangement can reduce the use of vertical space). The clamping member 31 forms a vertical movement of the lower pressing hammer 32 through the hinge 33;

[0063] Furthermore, the pressing member 31 , the pressing hammer 32 , and the hinge member 33 are not located on the same axis, so as to save space in the vertical direction.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A hose crimping device, comprising a mold crimping module (1), a servo output module (2), a clamping mold self-locking module (3) and a crimping member body (4), characterized in that: The mold crimping module (1) is located on the inner side of the crimping piece body (4), and is composed of an upper module (11) and a lower module (12), and an embedding opening (101) is provided at the joint end surface where the upper module (11) and the lower module (12) are located, so that when the upper module (11) and the lower module (12) are attached to each other, the embedding openings (101) located at the upper and lower positions form a through hole for the rubber hose to pass through; The servo output modules (2) are provided in two groups, which are arranged in parallel on the side of the buckling component body (4), and each group of servo output modules (2) respectively forms a secondary compression on the outer wall of the rubber hose supported by the upper module (11) and the lower module (12); The clamping die self-locking module (3) is located above the upper module (11) to form a downward extrusion pressing on the upper module (11).

2. The hose crimping device according to claim 1, characterized in that: A transverse sliding block (15) is disposed at the top of the upper module (11) and the bottom of the lower module (12), respectively, so that the upper module (11) and the lower module (12) can move transversely along the slideway direction of the sliding block (15); The upper module (11) and the lower module (12) have the same structure and are arranged in mirror symmetry in the up and down directions.

3. The hose crimping device according to claim 2, characterized in that: The upper module (11) comprises a fixed cavity (13) and an embedded tooth block (14); the fixed cavity (13) is provided with a plurality of groups of wedge blocks (131) distributed radially along the outer circumference of the outer edge where the embedding opening (101) is located; and the gap between two adjacent groups of wedge blocks (131) is used to support the embedded tooth block (14) and realize the reciprocating movement of the embedded tooth block (14) along the gap between the wedge blocks (131); An arc-shaped pressing block (141) is arranged at the top where the embedded tooth block (14) is located, so that the arc-shaped surface of the lower end of the arc-shaped pressing block (141) simultaneously forms contact with the top of the embedded tooth block (14), and by pressing down on the arc-shaped pressing block (132), a plurality of embedded tooth blocks (14) are simultaneously pressed down, so that the embedded tooth block (14) is tightened to the upper inner diameter where the embedding opening (101) is located.

4. The hose crimping device according to claim 3, characterized in that: The top side edge of the arc-shaped pressing block (132) is arranged as an inclined surface, and an inclined push block (201) is arranged at the output end where the servo output module (2) is located, so that the front end surface of the inclined push block (201) is embedded in the top side inclined surface of the arc-shaped pressing block (132), and the horizontal force is converted into vertical force by driving the power output of the servo output module (2), so as to realize the downward pressing movement of the arc-shaped pressing block (132) in the vertical direction.

5. The hose crimping device according to claim 4, characterized in that: The inclination angle of the top side slope of the arc-shaped pressing block (132) is 10-15°. At the same time, the contact surface between the front end of the oblique push block (201) and the arc-shaped pressing block (132) is a groove surface.

6. The hose crimping device according to claim 4, characterized in that: The oblique push block (201) is located at the output end of the servo output module (2) and is provided with a vertical slideway, so that the end of the oblique push block (201) is slidably connected to the vertical slideway.

7. The hose crimping device according to claim 3, characterized in that: A plurality of groups of protrusions (142) perpendicular to the central axis direction of the embedding opening (101) are arranged on the front end surface where the embedding tooth block (14) is located, so that the protrusions (142) of the embedding tooth block (14) protrude from the inner side surface where the wedge block (131) is located when extruding, and form a tight pressure on the outer wall of the hose.

8. The hose crimping device according to claim 6, characterized in that: The rear end portion where the oblique push block (201) is located is a wide surface structure, so that its wide surface is in sliding contact with the vertical slideway, and a limiting column (133) is provided on the side where the arc-shaped pressing block (132) is located, so that the limiting column (133) forms a position limit for the oblique push block (201) when it moves horizontally.

9. The hose crimping device according to claim 3, characterized in that: A notch (140) is provided on the side where the embedded tooth block (14) is located, and the opening direction of the notch (140) is consistent with the extending movement direction of the embedded tooth block (14); A return spring member (1401) and a positioning pin (1402) are arranged in the notch (140), and one end of the positioning pin (1402) penetrates and is fixed on the outer plate of the embedded tooth block (14), and the other end is located in the cavity where the notch (140) is located, so that the embedded tooth block (14) moves along the extension direction of the notch (140) where the positioning pin (1402) is located; At the same time, the reset spring member (1401) is located in the cavity between the positioning pin (1402) and the other end of the notch (140), thereby achieving reset of the embedded tooth block (14).

10. The hose crimping device according to claim 1, characterized in that: The clamping die self-locking module (3) comprises a pressing member (31), a lower pressing hammer (32), and a hinge (33); the lower pressing hammer (32) is located above the upper module (11); the pressing member (31) forms a vertical movement of the lower pressing hammer (32) through the hinge (33); Furthermore, the pressing member (31), the pressing hammer (32), and the hinge member (33) are located on non-coaxial axes.

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