WO2016045419A1

WO2016045419A1 - Pipe joint of hard pipe, connection pipe processing device and connection pipe processing method

Info

Publication number: WO2016045419A1
Application number: PCT/CN2015/081974
Authority: WO
Inventors: 孙玉岗; 周路; 陈其永; 葛台代; 陈铭斌; 李敏
Original assignee: 广东华液动力科技有限公司
Priority date: 2014-09-24
Filing date: 2015-06-19
Publication date: 2016-03-31

Abstract

Disclosed are a pipe joint of a hard pipe used for a hydraulic system and a device and method used for connection pipe processing, wherein the hard pipe has a head body (112) of a spherical shape, the head body (112) is elastically deformed to form a circle of circular sealing face fitted with a conic hole wall (125), such that a current simple line sealing is replaced by a certain degree of face sealing, thereby obtaining reliable airtightness. In addition, the device and the method can be used for manufacturing the head body (112) of a spherical shape, and are suitable for site operation.

Description

说明书发明名称:硬管管接头、接管加工装置及接管加工方法技术领域 Title: Inorganic name: hard pipe joint, pipe processing device and pipe processing method

[0001] 本申请涉及一种用于液压***的硬管管接头以及用于接管加工的装置和方法。 [0001] The present application relates to a hard pipe joint for a hydraulic system and an apparatus and method for the process of takeover.

[0002] 背景技术 BACKGROUND OF THE INVENTION

[0003] 液压管接头是油管与油管、油管与液压元件及设备之间的可拆式连接件，液压管接头是液压***管路连接中必须的紧固件，液压管接头与普通管接头有很大区别，最大的最显著的区别就是液压的管内压力相比普通管接头内的压力大得多，前者往往是后者的数十倍甚至几百倍，液压油管突然爆裂油的冲击力也是很大的，所以，液压管接头要求非常高。 [0003] The hydraulic pipe joint is a detachable connection between the oil pipe and the oil pipe, the oil pipe and the hydraulic component and the device, and the hydraulic pipe joint is a necessary fastener in the hydraulic system pipe connection, and the hydraulic pipe joint and the common pipe joint have The big difference is that the biggest and most significant difference is that the pressure inside the hydraulic pipe is much larger than that in the ordinary pipe joint. The former is often dozens or even hundreds of times the latter. The impact of the hydraulic oil pipe suddenly bursting oil is also Very large, so hydraulic fittings are very demanding.

[0004] 液压管接头是油管与油管、油管与液压元件之间的可拆式紧固件，它一般分为软管接头和硬管管接头，液压***中主要采用硬管管接头，其主要可分为：焊接式管接头、卡套式管接头、扩口式管接头。但这几种管接头由于材料以及密封结构的限制，密封效果并不理想。 [0004] The hydraulic pipe joint is a detachable fastener between the oil pipe and the oil pipe, the oil pipe and the hydraulic component, and is generally divided into a hose joint and a hard pipe joint, and the hydraulic system mainly adopts a hard pipe joint, the main Can be divided into: welded pipe joints, ferrule type pipe joints, flared pipe joints. However, these types of pipe joints are not ideally sealed due to the limitations of the materials and the sealing structure.

[0005] 发明内容 SUMMARY OF THE INVENTION

[0006] 本申请提供一种硬管管接头,包括： The present application provides a hard pipe joint, comprising:

[0007] 硬管，所述硬管包括头体和与头体联接的管体，所述头体具有球面形的外壁； [0008] 转接件，所述转接件具有第一通孔，所述第一通孔至少具有第一孔道，所述第一孔道为圆锥孔； [0007] a hard tube, comprising: a head body and a tube body coupled to the head body, the head body having a spherical outer wall; [0008] an adapter, the adapter has a first through hole, The first through hole has at least a first hole, and the first hole is a tapered hole;

[0009] 以及紧固件，所述紧固件具有第二通孔，且一端为压紧部，所述管体一端伸入第一通孔内，所述紧固件套设在管体上且与转接件固定联接，所述压紧部抵住硬管，将硬管的头体抵紧第一孔道的孔壁，使所述头体发生弹性形变形成一圈与第一孔道的孔壁贴合的圆环形状密封面。 [0009] and the fastener, the fastener has a second through hole, and one end is a pressing portion, one end of the tubular body extends into the first through hole, and the fastener is sleeved on the tubular body And the fixing member is fixedly coupled, the pressing portion abuts against the hard tube, and the head body of the hard tube abuts against the hole wall of the first hole, so that the head body is elastically deformed to form a circle and a hole of the first hole. A ring-shaped sealing surface that fits the wall.

[0010] 作为所述硬管管接头的进一步改进，所述头体上底壁的直径大于管体的直径，使所述头体自管体外壁横向伸出形成根角，所述压紧部伸入第一通孔内，且所述压紧部的端部抵住所述底壁，将头体向第一孔道的孔壁压紧。 [0010] As a further improvement of the hard pipe joint, the diameter of the upper bottom wall of the head body is larger than the diameter of the pipe body, so that the head body protrudes laterally from the outer wall of the pipe to form a root angle, and the pressing portion extends The first through hole is inserted into the first through hole, and the end of the pressing portion abuts against the bottom wall, and the head body is pressed against the hole wall of the first hole.

[0011] 作为所述硬管管接头的进一步改进，所述第一通孔还包括第二孔道，所述第二孔道与第一孔道连通，所述第二孔道的孔壁有内螺纹，所述压紧部外壁具有外螺纹，所述压紧部与第二孔道螺接固定。 [0011] As a further improvement of the hard pipe joint, the first through hole further includes a second hole, the second The hole communicates with the first hole, the hole wall of the second hole has an internal thread, the outer wall of the pressing portion has an external thread, and the pressing portion is screwed and fixed to the second hole.

[0012] 作为所述硬管管接头的进一步改进，所述压紧部的端部外壁具有缩径台阶。 [0012] As a further improvement of the hard pipe joint, the end outer wall of the pressing portion has a reduced diameter step.

[0013] 作为所述硬管管接头的进一步改进，所述紧固件的第二通孔包括支撑孔道，所述支撑孔道内径与管体外径相等。 [0013] As a further improvement of the hard pipe joint, the second through hole of the fastener includes a support hole, and the inner diameter of the support hole is equal to the outer diameter of the pipe body.

[0014] 作为所述硬管管接头的进一步改进，所述紧固件的第二通孔还包括中间孔道和调整孔道，所述中间孔道与支撑孔道连通，其内径大于管体外径，所述调整孔道与中间孔道连通，其成敞口状。 [0014] As a further improvement of the hard pipe joint, the second through hole of the fastener further includes an intermediate hole and an adjustment hole, wherein the intermediate hole is in communication with the support hole, and an inner diameter thereof is larger than an outer diameter of the pipe body, The adjustment tunnel is in communication with the intermediate tunnel, which is open.

[0015] 本申请还提供一种接管加工装置，包括： [0015] The present application also provides a takeover processing apparatus, including:

[0016] 底座； [0016] a base;

[0017] 管模组件，所述管模组件设置于底座上，其具有第一管模和第二管模，所述第一管模和第二管模围成管体腔； [0017] a tube mold assembly, the tube mold assembly is disposed on the base, and has a first tube mold and a second tube mold, wherein the first tube mold and the second tube mold enclose a tube body cavity;

[0018] 球模组件，所述球模组件包括球模和芯模，所述球模具有与接管头体的球面形外壁相适配的球头腔，所述芯模穿过球模并与接管的第二通孔位置适配，所述球模抵接第一管模和第二管模，所述球头腔与管体腔连通； [0018] a ball die assembly, the ball die assembly comprising a ball die and a core die, the ball die having a ball head cavity adapted to a spherical outer wall of the takeover head body, the core die passing through the ball die And adapting to the position of the second through hole of the nozzle, the ball mold abuts the first tube mold and the second tube mold, and the ball head chamber is in communication with the tube body cavity;

[0019] 锁紧件，所述锁紧件可调整管体腔大小，使管体腔松幵或锁紧接管； [0019] a locking member, the locking member can adjust the size of the tubular body cavity, so that the tubular body cavity is loose or locked;

[0020] 以及加力件，所述加力件可使球模和芯模将接管的头体压延形成球面形。 And a force member that causes the ball mold and the core mold to calender the body of the nozzle to form a spherical shape.

[0021] 作为所述装置的进一步改进，所述管模组件还包括接管模具体，所述接管模具体固定在底座上，所述接管模具体具有凹槽，所述第一管模和第二管模置于所述凹槽内，所述接管模具体的一端被限位，所述锁紧件抵住第一管模和 /或第二管模，并与接管模具体可调式联接。 [0021] As a further improvement of the device, the tube mold assembly further includes a nozzle mold body, the nozzle mold body is fixed on the base, the nozzle mold body has a groove, the first tube mold and the first A two-tube mold is placed in the groove, one end of the nozzle mold body is restrained, and the locking member abuts the first tube mold and/or the second tube mold, and is adjustably coupled with the nozzle mold body.

[0022] 作为所述装置的进一步改进，所述球模组件还包括球头模具体，所述球头模具体固定在底座上，且抵接接管模具体，所述球头模具体具有导向凹槽，所述球模和芯模设置在导向凹槽内，所述加力件抵住球模和芯模，并与球头模具体可调式联接。 [0022] As a further improvement of the device, the ball die assembly further includes a ball die body, the ball die body is fixed on the base, and abuts the nozzle die body, and the ball die body has a guiding The groove, the ball mold and the core mold are disposed in the guiding groove, the force-applying member is pressed against the ball mold and the core mold, and is coupled to the ball-end mold body.

[0023] 本申请还提供一种接管加工方法，所述方法是采用冷压延成型工艺将接管的头体压延形成球面形。 [0023] The present application also provides a method of nozzle processing, which uses a cold calendering process to calender the head of the nozzle to form a spherical shape.

[0024] 本申请的有益效果是： [0025] 本申请提供一种硬管管接头，该结构中硬管具有球面形的头体，而转接件具有圆锥孔，硬管和转接件通过紧固件锁紧，使管体的头体抵紧圆锥孔的孔壁，从而硬管的头体发生弹性形变形成一圈与圆锥孔壁贴合的圆环形密封面，此吋就不是简单的线密封而是一定程度的面密封，可以此获得可靠的密封性。 [0024] The beneficial effects of the application are: [0025] The present application provides a hard pipe joint in which the hard pipe has a spherical head body, and the adapter has a tapered hole, and the hard pipe and the adapter are locked by fasteners to make the pipe body The head body abuts against the hole wall of the conical hole, so that the head body of the hard tube is elastically deformed to form a circular sealing surface which is matched with the conical hole wall, and the crucible is not a simple line seal but a certain degree of surface seal. , you can get a reliable seal.

[0026] 本申请还提供一种接管加工装置，其包括底座、端盖板、管模组件、球模组件、锁紧件和加力件。该管模组件具有第一管模和第二管模，第一管模和第二管模一端抵住端盖板，并围成管体腔，并由锁紧件调节管体腔大小。球模组件包括球模和芯模，球模具有与接管的球面形头体相适配的球头腔，芯模穿过球模并与接管的第二通孔位置适配，球头腔与管体腔连通的。在制造过程中，先调节锁紧件松幵管体腔，将接管放置到位，然后再调节锁紧件将接管锁紧，通过加力件施力，使球模和芯模将接管的头体压延形成球面形，最后松幵加力件和锁紧件，取出接管即可，能够在接管上制造出球面形头体。 The present application also provides a take-over processing apparatus including a base, an end cover, a tube mold assembly, a ball mold assembly, a locking member, and a urging member. The tube mold assembly has a first tube mold and a second tube mold. The first tube mold and the second tube mold end are opposed to the end cover plate and enclose the tube body cavity, and the lock body adjusts the tube body cavity size. The ball die assembly comprises a ball die and a core die, the ball die has a ball head cavity adapted to the spherical head body of the nozzle, the core die passes through the ball die and is adapted to the position of the second through hole of the nozzle, the ball head cavity Connected to the body cavity. In the manufacturing process, first adjust the locking device loose tube body cavity, put the connecting tube in place, and then adjust the locking member to lock the connecting tube, and apply force to force the ball mold and the core mold to crimp the head body of the connecting tube The spherical shape is formed, and finally the force-applying member and the locking member are loosened, and the socket is taken out, and the spherical head body can be manufactured on the nozzle.

[0027] 本申请还提供一种接管加工方法，该方法采用冷压延成型将接管的头体压延形成球面形，因此加工制得头体光滑平顺，无毛刺裂纹，被压延部位综合机械性能较钢管原体反而得以增强，关键是用于形成密封面部分处于压延成型过渡带上，其机械性能、弹性能能够满足不同压力等级液压的刚性密封副的需要。 [0027] The present application also provides a method for processing a nozzle, which adopts cold calendering to shape the head of the nozzle to form a spherical shape, so that the head body is smooth and smooth, no burr crack, and the mechanical properties of the rolled portion are better than that of the steel tube. The original body is enhanced, the key is to form the sealing surface part on the calendering transition zone, and its mechanical properties and elastic energy can meet the needs of different pressure grade hydraulic rigid sealing pairs.

[0028] 附图说明 BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 图 1为本申请硬管管接头一种实施例结构示意图； 1 is a schematic structural view of an embodiment of a hard pipe joint of the present application;

[0030] 图 2为图 1所示实施例中硬管头体部分放大示意图； 2 is an enlarged schematic view showing a portion of the hard pipe head body in the embodiment shown in FIG. 1;

[0031] 图 3为本申请接管加工装置一种实施例的整体结构图； [0031] FIG. 3 is an overall structural view of an embodiment of a take-over processing apparatus of the present application;

[0032] 图 4为图 3所示实施例的剖切图。 4 is a cross-sectional view of the embodiment shown in FIG. 3.

[0033] 具体实施方式 DETAILED DESCRIPTION

[0034] 实施例 1 Embodiment 1

[0035] 请参考图 1，本实施例一提供一种硬管管接头，其包括硬管 11、转接件 12和紧固件 13。 Referring to FIG. 1, the first embodiment provides a hard pipe joint including a hard pipe 11, an adapter 12 and a fastener 13.

[0036] 该转接件 12具有第一通孔（或称为过流孔），第一通孔分为第一孔道 121、第二孔道 122和第三孔道 123。 [0036] The adapter 12 has a first through hole (also referred to as a flow hole), and the first through hole is divided into a first hole 121, a second hole 122, and a third hole 123.

[0037] 该第一孔道 121为圆锥孔，第二孔道 122与第一孔道 121直接连通，且第二孔道 1 22的孔壁有内螺纹。第三孔道 123也与第一孔道 121直接连通，其直径可以与硬管 11的通道内径大小一致，用于与其他机具、阀块连通。由于转接件 12—般不常拆卸，与机具、阀块连接的管螺纹 124完全可以采用锥管螺纹，这样可以省去硬管密封件。 [0037] The first channel 121 is a tapered hole, the second channel 122 is in direct communication with the first channel 121, and the second channel 1 The wall of the hole 22 has an internal thread. The third tunnel 123 is also in direct communication with the first tunnel 121, and has a diameter which is consistent with the inner diameter of the passage of the rigid tube 11 for communicating with other implements and valve blocks. Since the adapter 12 is generally not disassembled, the pipe thread 124 connected to the implement and the valve block can be completely tapered, so that the hard pipe seal can be omitted.

[0038] 该硬管 11具有第二通孔，其可以选择退火处理低碳钢无缝管。硬管 11包括管体 [0038] The hard tube 11 has a second through hole which can be selected to anneal the low carbon steel seamless tube. Hard tube 11 includes tube body

111和与管体 111联接的头体 112，头体 112具有球面形外壁 114。该头体 112上底壁 113的直径大于管体 111的直径，使头体 112自管体 111的外壁横向伸出形成根角。该根角可以为任意角度，这里示例性举出三个，如 90°、 115°或 135°，其中 1111 and a head body 112 coupled to the tube body 111, the head body 112 has a spherical outer wall 114. The diameter of the upper bottom wall 113 of the head body 112 is larger than the diameter of the tubular body 111, so that the head body 112 projects laterally from the outer wall of the tubular body 111 to form a root angle. The root angle can be any angle, exemplified by three, such as 90°, 115° or 135°, where 1

15°和 135°更利于受力，避免头体 112多次使用后出现根部裂纹的问题。 15° and 135° are more conducive to force, avoiding the problem of root cracks after multiple use of the head body 112.

[0039] 该紧固件 13具有第二通孔，且一端为筒形的压紧部 131，压紧部 131外壁具有外螺纹 137，用于压紧部 131与第二孔道 122螺接固定。 The fastener 13 has a second through hole, and one end is a cylindrical pressing portion 131. The outer wall of the pressing portion 131 has an external thread 137 for screwing and fixing the pressing portion 131 and the second hole 122.

[0040] 安装吋，管体 111一端伸入第一通孔内，紧固件 13套设在管体 111上，压紧部 13[0040] After the mounting, one end of the tubular body 111 extends into the first through hole, and the fastener 13 is sleeved on the tubular body 111, and the pressing portion 13

1伸入第一通孔内且与转接件 12螺接，同吋压紧部 131的端部 132抵住头体 112的底壁 113，将头体 112向第一孔道 121的孔壁压紧。 1 extends into the first through hole and is screwed to the adapter 12, and the end portion 132 of the same pressing portion 131 abuts against the bottom wall 113 of the head body 112, and presses the head body 112 toward the wall of the first hole 121. tight.

[0041] 请参考图 1和 2，圆锥孔的孔壁促使球面形头体 112的外壁 114变形形成一圈与圆锥孔壁贴合的圆环形状的密封面 115。 Referring to FIGS. 1 and 2, the wall of the tapered bore causes the outer wall 114 of the spherical head body 112 to deform to form a ring-shaped sealing surface 115 that fits the wall of the tapered bore.

[0042] 为使球面形头体 112能形成圆环形状的密封面 115，在材料选择上，转接件 12的硬度可大于硬管 11的硬度。 [0042] In order for the spherical head body 112 to form a ring-shaped sealing surface 115, the hardness of the adapter 12 may be greater than the hardness of the rigid tube 11 in material selection.

[0043] 由于圆环形状密封面与球面形头体 112能够紧密贴合密封，因此密封很可靠，压力等级非常高，多次反复使用不影响密封效果。 [0043] Since the annular-shaped sealing surface and the spherical-shaped head body 112 can be closely fitted and sealed, the sealing is very reliable, the pressure level is very high, and repeated use does not affect the sealing effect.

[0044] 进一步地，压紧部 131的端部 132为了能够与该根角更好贴合，使该端部 132形成内倾角，内倾角与根角相匹配。 Further, in order to be able to conform to the root angle, the end portion 132 of the pressing portion 131 is formed to have an inward inclination angle, and the internal inclination angle is matched with the root angle.

[0045] 为了避免紧固件 13在旋转式吋与转接件 12相干涉，因此压紧部 131的端部 132外壁具有缩径台阶 133，以便留出避让空间。 [0045] In order to prevent the fastener 13 from interfering with the adapter 12 in the rotary jaw, the outer wall of the end portion 132 of the pressing portion 131 has a reduced diameter step 133 to allow a escape space.

[0046] 进一步地，在本实施例一中，紧固件 13的第二通孔包括相互连通的支撑孔道 13Further, in the first embodiment, the second through hole of the fastener 13 includes the support holes 13 that communicate with each other.

4、中间孔道 135和调整孔道 136。 4. Intermediate tunnel 135 and adjustment tunnel 136.

[0047] 其中，支撑孔道 134用于支撑硬管 11的摆动力，其内径基本与管体 111外径相等[0047] wherein, the support hole 134 is used to support the swinging force of the hard tube 11, and the inner diameter thereof is substantially equal to the outer diameter of the tube body 111.

，即支撑孔道 134的内径稍稍大于管体 111外径，但该尺寸不会导致硬管 11在支撑孔道 134内较大地摆动。 That is, the inner diameter of the support tunnel 134 is slightly larger than the outer diameter of the pipe body 111, but the size does not cause the hard pipe 11 to be supported. The inside of the support tunnel 134 swings largely.

[0048] 该中间孔道 135内径大于管体 111外径，此吋中间孔道 135的内径是明显大于管体 111外径，作用是方便于紧固件 13在硬管 11上更加顺畅地滑动。 [0048] The inner diameter of the intermediate passage 135 is larger than the outer diameter of the tubular body 111, and the inner diameter of the intermediate passage 135 is significantly larger than the outer diameter of the tubular body 111, so that the fastener 13 can be more smoothly slid on the rigid tube 11.

[0049] 该调整孔道 136则成敞口状，本实施例一所示敞口状为圆锥孔，而在其他实施例中，当然也可选择其他敞口状结构。本实施例一设置敞口状是用于调节硬管 1[0049] The adjustment hole 136 is open, and the open shape in the first embodiment is a tapered hole, and in other embodiments, other open structures may of course be selected. In the first embodiment, the open shape is used to adjust the hard tube 1

1与接头的角度。 1 angle to the joint.

[0050] 本实施例一所示硬管管接头中，密封副是由头体 112的球面形外壁 114与转接件 12的锥形面紧密接触形成，紧固件 13向头体 112施以强大预紧力，由于转接件 12 材质和处理硬度方面与硬管 11之间有明显硬度差，当压紧力达到一定程度吋，硬管 11的头体 112与圆锥孔的接触部分发生弹性变形，使密封副偶件间形成紧密贴合，这吋就是良好的刚性密封状态，此吋就不是简单的线密封而是一定程度的环形密封面密封，所以密封很可靠，压力等级非常高，多次反复使用不影响密封效果，可以满足 l lOOMpa以下各个压力等级及流量的液压***管路的硬管连接。 [0050] In the hard pipe joint of the first embodiment, the sealing pair is formed by the spherical outer wall 114 of the head body 112 being in close contact with the tapered surface of the adapter 12, and the fastener 13 is strong to the head body 112. The pre-tightening force, due to the obvious hardness difference between the material and the handling hardness of the adapter 12 and the hard tube 11, when the pressing force reaches a certain degree, the contact portion between the head body 112 and the tapered hole of the hard tube 11 is elastically deformed. , so that the sealing pair is formed into a close fit, which is a good rigid sealing state, which is not a simple line sealing but a certain degree of annular sealing surface sealing, so the sealing is very reliable, the pressure level is very high, more The repeated use does not affect the sealing effect, and can meet the hard pipe connection of the hydraulic system pipelines of various pressure levels and flow rates below l lOOMpa.

[0051] 紧固件 13以外螺纹内接于转接件 12内的结构非常有利于硬管 11及管接头多向受力，特别适合连接后在实际生产中承受振动和硬管的摆动，及便于现场的多次管路调整。 [0051] The structure in which the external thread of the fastener 13 is inscribed in the adapter 12 is very advantageous for the multi-directional force of the hard pipe 11 and the pipe joint, and is particularly suitable for vibration and hard pipe oscillation in actual production after the connection, and Easy to adjust multiple pipelines on site.

[0052] 进一步地，转接件 12和紧固件 13的材质可以采用优质中碳钢或合金钢经热处理得到较高的硬度和机械性能，以利于与头体 112形成硬度差和得到超高压所需的机械强度，转接件 12和紧固件 13完全可以按标准预先批量制作或订制。 [0052] Further, the material of the adapter 12 and the fastener 13 can be heat-treated to obtain high hardness and mechanical properties by using high-quality medium carbon steel or alloy steel, so as to form a hardness difference with the head body 112 and obtain an ultra-high pressure. The required mechanical strength, adapter 12 and fasteners 13 can be pre-made or ordered in advance by standard.

[0053] 同吋，本实施例所示硬管管接头不需要焊接，不用另加卡套、套管，无焊澄、铁屑、纤维状杂质、密封填充物等，清洗简单方便。而且轴向自然对中性良好也无卡套、转接件锥孔各异的情况，无需预装。同吋本结构具有高抗振性和很强抗摆动能力，所以不用橡胶件来满足活动部位的连接。 [0053] In the same way, the hard pipe joint shown in this embodiment does not need to be welded, and no additional ferrules, sleeves, no welds, iron filings, fibrous impurities, sealing fillers, etc. are used, and the cleaning is simple and convenient. Moreover, the axial natural alignment is good, there is no ferrule, and the adapter has different taper holes, and no pre-assembly is required. The same structure has high vibration resistance and strong anti-swing ability, so no rubber parts are needed to satisfy the connection of the active part.

[0054] 当然，以本实施例一所公幵的结构为基础，在其他实施例中还可做其他变形： [0054] Of course, based on the structure disclosed in the first embodiment, other variations may be made in other embodiments:

[0055] 如，紧固件 13的压紧部 131并非抵住硬管 11的头体 112，而是在管体 111上另设抵接部，使压紧部 131与该抵接部配合将硬管 11压紧在圆锥孔壁上，而抵接部和压紧部 131的配合结构可参考本实施例一中底壁 113与压紧部 131的配合结构。此吋，头体 112与管体 111外壁之间可以设置根角，也可以不设置根角；同吋，如抵接部设置于第一通孔外，那么压紧部 131也可不伸入到转接件的第一通孔内。 [0055] For example, the pressing portion 131 of the fastener 13 does not abut against the head body 112 of the hard tube 11, but an abutting portion is additionally provided on the tube body 111, so that the pressing portion 131 cooperates with the abutting portion. The hard tube 11 is pressed against the conical hole wall, and the mating structure of the abutting portion and the pressing portion 131 can refer to the mating structure of the bottom wall 113 and the pressing portion 131 in the first embodiment. This 吋, the head body 112 and the outer wall of the pipe body 111 may be provided with a root angle, or may not be provided with a root angle; at the same time, if the abutting portion is disposed outside the first through hole, the pressing portion 131 may not extend into the adapter. Inside the first through hole.

[0056] 如，也可使转接件 12具有外螺纹，而紧固件 13具有内螺纹，两者依然螺接，但压紧部 131此吋只需抵紧头体 112或者上述的抵接部即可，在这种情况下，甚至还可省去第二孔道 122; [0056] For example, the adapter 12 can also have an external thread, and the fastener 13 has an internal thread, and the two are still screwed, but the pressing portion 131 only needs to abut the head 112 or the abutment. That is, in this case, even the second tunnel 122 can be omitted;

[0057] 如，转接件 12也可不设置第三孔道 123，而与机具、阀块连接的管螺纹可设置于第一孔道 121对应部分的外壁上。 [0057] For example, the adapter 12 may not be provided with the third tunnel 123, and the pipe thread connected to the implement and the valve block may be disposed on the outer wall of the corresponding portion of the first tunnel 121.

[0058] 实施例 2 Embodiment 2

[0059] 请参考图 3，本实施例二提供一种接管加工装置，其包括底座 21、端盖板 22、管模组件 23、球模组件 24、锁紧件 25和加力件 26，可用于制造如实施例一所示的硬管以及其他具有球面形头体的接管。 Referring to FIG. 3, the second embodiment provides a nozzle processing apparatus including a base 21, an end cover 22, a tube mold assembly 23, a ball mold assembly 24, a locking member 25, and a force member 26. It can be used to manufacture the rigid pipe as shown in the first embodiment and other connecting pipes having a spherical head body.

[0060] 具体地，请参考图 4，底座 21用于整个装置的制成，其可固定在任何稳定位置 [0060] Specifically, referring to FIG. 4, the base 21 is used for the whole device, which can be fixed in any stable position.

(如简易工作台）上，端盖板 22则固定在底座 21上。 On the simple workbench, the end cover 22 is fixed to the base 21.

[0061] 在本实施例中，管模组件 23具有接管模具体 231、第一管模 232和第二管模 233In the present embodiment, the tube mold assembly 23 has a take-up mold body 231, a first tube mold 232, and a second tube mold 233.

。接管模具体 231固定在底座 21上且一端抵住端盖板 22，或者也可进一步通过锁紧螺钉锁紧在端盖板 22上。 . The take-up mold body 231 is fixed to the base 21 and has one end against the end cover 22, or may be further locked to the end cover 22 by a locking screw.

[0062] 另外，除了利用端盖板 22对接管模具体 231限位外，还可直接在底座 21上设置限位部对接管模具体 231限位，例如设置底座上设置凸起或者设置凹槽。 In addition, in addition to limiting the butt tube mold body 231 by the end cover 22, the limit portion butt joint mold body 231 can be directly disposed on the base 21, for example, a protrusion or a groove is provided on the base. .

[0063] 接管模具体 231具有凹槽，第一管模 232和第二管模 233置于该凹槽内，且抵住端盖板 22。该第一管模 232和第二管模 233围成管体腔，用于放置接管。由于第一管模 232和第二管模 233是活动放置于凹槽内，因此管体腔大小是可以调整的 [0063] The take-up mold body 231 has a groove in which the first tube mold 232 and the second tube mold 233 are placed and abut against the end cover 22. The first tube mold 232 and the second tube mold 233 enclose a tube body cavity for placing the tube. Since the first tube mold 232 and the second tube mold 233 are actively placed in the recess, the tube body cavity size can be adjusted.

[0064] 锁紧件 25用以调节管体腔大小，其抵住第一管模 232，并与接管模具体 231可调式联接，以便调整管体腔的大小。本实施例二所示可调式联接为螺纹连接，锁紧件 25为压紧螺栓，其他实施例也可用其他可调式联接结构来代替该螺纹连接 [0064] The locking member 25 is used to adjust the size of the tubular body cavity, which is abutted against the first tubular mold 232 and is variably coupled with the nozzle mold body 231 to adjust the size of the tubular body cavity. The adjustable coupling shown in the second embodiment is a threaded connection, and the locking member 25 is a compression bolt. In other embodiments, other adjustable coupling structures can be used instead of the threaded connection.

[0065] 在其他实施例中，锁紧件 25也可抵住第二管模 233，或者锁紧件 25数量为两个，分别抵住第一管模 232和第二管模 233，从而调整管体腔的大小。 [0066] 球模组件 24包括球头模具体 241、球模 242和芯模 243。球头模具体 241固定在底座 21上，且抵接接管模具体 231。该球头模具体 241具有导向凹槽，球模 242和芯模 243设置在导向凹槽内。 [0065] In other embodiments, the locking member 25 can also resist the second tube mold 233, or the number of the locking members 25 is two, respectively, against the first tube mold 232 and the second tube mold 233, thereby adjusting The size of the body cavity. [0066] The ball mold assembly 24 includes a ball end mold body 241, a ball mold 242, and a core mold 243. The ball end mold body 241 is fixed to the base 21 and abuts against the nozzle mold body 231. The ball head mold body 241 has a guide groove, and the ball mold 242 and the core mold 243 are disposed in the guide groove.

[0067] 该球模 242具有与接管 3的球面形头体相适配的球头腔，芯模 243穿过球模 242并与接管 3的通孔位置适配，球模 242抵接第一管模 232和第二管模 233，球头腔与管体腔连通。 [0067] The ball die 242 has a ball head cavity adapted to the spherical head of the nozzle 3, the core die 243 passes through the ball die 242 and is adapted to the position of the through hole of the nozzle 3, and the ball die 242 abuts the first The tube mold 232 and the second tube mold 233 communicate with the tube body cavity.

[0068] 加力件 26用于使球模 242和芯模 243将接管 3的头体压延形成球面形。具体地，加力件 26为加力螺栓，其抵住球模 242和芯模 243，并与球头模具体 241可调式联接，可推动球模 242和芯模 243向第一管模 232和第二管模 233移动。 The force member 26 is for causing the ball mold 242 and the core mold 243 to calender the body of the nozzle 3 into a spherical shape. Specifically, the force-applying member 26 is an urging bolt that abuts the ball mold 242 and the core mold 243 and is variably coupled with the ball-end mold body 241 to push the ball mold 242 and the core mold 243 toward the first tube mold 232 and The second tube mold 233 moves.

[0069] 球面形头体制作过程如下： [0069] The spherical body manufacturing process is as follows:

[0070] 将下好料并磨好切口的待加工无缝钢管自管体腔左端***， ***深度与加力螺栓预调压延距离相同。随后旋紧管道模具体上的压紧螺栓 25，并加力（给力以管道不塑变为限）锁紧。 [0070] The seamless steel pipe to be processed with the good material and the ground cut is inserted from the left end of the pipe cavity, and the insertion depth is the same as the pre-adjustment rolling distance of the afterburner bolt. Then tighten the compression bolts 25 on the pipe mold body and apply force (the force is not limited to the pipe).

[0071] 然后，加力螺栓 26加力进给，直至压延过程完成。 [0071] Then, the urging bolt 26 is forced to feed until the calendering process is completed.

[0072] 最后，依次松幵压紧螺栓 25和加力螺栓 26，轻摇无缝钢管，待球模 242、芯模 2 [0072] Finally, the bolts 25 and the urging bolts 26 are loosened in turn, and the seamless steel pipe is gently swayed, and the ball mold 242 and the core mold 2 are

43、第一管模 232和第二管模 233松动后就可取出钢管。 43. After the first tube mold 232 and the second tube mold 233 are loosened, the steel tube can be taken out.

[0073] 至此，接管 3—端的球面形头体加工完成。 [0073] At this point, the spherical head body that takes over the 3-end is completed.

[0074] 对于加工制作的球头规格可以有多种选择，根据压力等级、液体流量、管径、接头处工况、接头体圆锥孔角度等，我们可选择多种模具规格，以获得 1/2圆球、 3/5圆球、 4/7圆球，以及半球根角 90°、 115°、 135°的不同型号管端头球头体。 [0074] There are many options for the ball head specifications. According to the pressure level, liquid flow, pipe diameter, joint working condition, joint body taper hole angle, etc., we can choose a variety of mold specifications to get 1/ 2 ball, 3/5 ball, 4/7 ball, and different types of pipe end ball heads with hemispherical root angles of 90°, 115°, and 135°.

[0075] 此外，本装置在配合预先制好的紧固件（即实施例 1中所示紧固件 13) ，还可迅速组装成实施例一所示的硬管 11与紧固件 13结构，如：先按照上述步骤将接管 3—端制成球面形头体（制成后即为实施例一所示的具有球面形头体的硬管 11 ) ，然后将紧固件 13套在硬管 11上，再按照上述步骤加工硬管 11另一端头即可，最后还可将该结构与接头体连接安装，实现如实施例一所示的硬管接头结构 [0075] In addition, the device can be quickly assembled into the structure of the rigid tube 11 and the fastener 13 shown in the first embodiment in combination with the pre-made fasteners (ie, the fastener 13 shown in the embodiment 1). For example: First, according to the above steps, the 3-end of the nozzle is made into a spherical head body (the hard tube 11 having the spherical head body shown in the first embodiment is formed), and then the fastener 13 is placed on the hard On the tube 11, the other end of the hard tube 11 can be processed according to the above steps. Finally, the structure can be connected to the joint body to realize the rigid joint structure as shown in the first embodiment.

[0076] 本实施例二所示球面形头体加工是一个冷压延成型过程，加工制得头体光滑平顺，无任何毛刺裂纹，被压延部位综合机械性能较钢管原体反而得以增强，关键是用于形成密封线（带）部分处于压延成型过渡带上，其机械性能、弹性能很好满足刚性密封副的需要。 [0076] The processing of the spherical head body shown in the second embodiment is a cold calendering forming process, and the head body is smooth and smooth without any burr crack, and the comprehensive mechanical properties of the calendered portion are enhanced compared with the steel tube original body. The key is used to form the sealing line (belt) part on the calendering transition zone, and its mechanical properties and elasticity can well meet the needs of the rigid sealing pair.

[0077] 而且本实施例二所示装置只需要一个内六角扳手，一个加力钢管就可以完成加工，操作非常方便，适合于任何场合现场制作的球面形头体，符合现实中现场配作的要求。 [0077] Moreover, the device shown in the second embodiment only needs an Allen key, and an afterburning steel pipe can be processed, and the operation is very convenient. It is suitable for the spherical head body made on site in any occasion, which is suitable for real-time site matching. Claim.

[0078] 实施例 3 Example 3

[0079] 本实施例三提供一种接管加工方法，该方法是采用冷压延成型工艺将接管的头体压延形成球面形。 [0079] The third embodiment provides a nozzle processing method for rolling a body of a nozzle into a spherical shape by a cold calendering process.

[0080] 实施例二所示装置即根据本实施例三所示方法而设计的一种装置，当然，实施例二所示装置仅是本方法的一种示例，实际操作中也可以通过其他装置来实现本方法。也可以根据本方法设计制造多款带动力的液压、机械式管体球形头的加工成型设备。 [0080] The device shown in the second embodiment is a device designed according to the method shown in the third embodiment. Of course, the device shown in the second embodiment is only an example of the method, and other devices may also be used in actual operation. To implement this method. It is also possible to design and manufacture a variety of processing and molding equipment for hydraulic and mechanical tubular heads with power according to the method.

[0081] 以上应用了具体个例对本发明进行阐述，只是用于帮助理解本发明并不用以限制本发明。对于本领域的一般技术人员，依据本发明的思想，可以对上述具体实施方式进行变化。 The invention has been described above with reference to specific examples, and is not intended to limit the invention. Variations to the above-described specific embodiments may be made by those skilled in the art in light of the teachings of the present invention.

技术问题 technical problem

问题的解决方案 Problem solution

发明的有益效果 Advantageous effects of the invention

Claims

权利要求书 Claim

一种硬管管接头,其特征在于，包括： A hard pipe joint characterized by comprising:

硬管，所述硬管包括头体和与头体联接的管体，所述头体具有球面形的外壁； a hard tube comprising a head body and a tube body coupled to the head body, the head body having a spherical outer wall;

转接件，所述转接件具有第一通孔，所述第一通孔至少具有第一孔道，所述第一孔道为圆锥孔； The adapter has a first through hole, the first through hole has at least a first hole, and the first hole is a tapered hole;

以及紧固件，所述紧固件具有第二通孔，且一端为压紧部，所述管体一端伸入第一通孔内，所述紧固件套设在管体上且与转接件固定联接，所述压紧部抵住硬管，将硬管的头体抵紧第一孔道的孔壁，使所述头体发生弹性形变形成一圈与第一孔道的孔壁贴合的圆环形状密封面如权利要求 1所述的硬管管接头，其特征在于，所述头体上底壁的直径大于管体的直径，使所述头体自管体外壁横向伸出形成根角，所述压紧部伸入第一通孔内，且所述压紧部的端部抵住所述底壁，将头体向第一孔道的孔壁压紧。 And a fastener, the fastener has a second through hole, and one end is a pressing portion, one end of the tubular body extends into the first through hole, and the fastener is sleeved on the tube body and rotates The connecting piece is fixedly coupled, the pressing portion abuts against the hard tube, and the head body of the hard tube abuts against the hole wall of the first hole, so that the head body is elastically deformed to form a circle and fits the hole wall of the first hole. The annular shape sealing surface of the hard pipe joint according to claim 1, wherein the diameter of the upper bottom wall of the head body is larger than the diameter of the pipe body, so that the head body extends laterally from the outer wall of the pipe body. The root angle, the pressing portion extends into the first through hole, and the end of the pressing portion abuts against the bottom wall to press the head body toward the hole wall of the first hole.

如权利要求 2所述的硬管管接头，其特征在于，所述第一通孔还包括第二孔道，所述第二孔道与第一孔道连通，所述第二孔道的孔壁有内螺纹，所述压紧部外壁具有外螺纹，所述压紧部与第二孔道螺接固定 The hard pipe joint according to claim 2, wherein the first through hole further comprises a second hole, the second hole is in communication with the first hole, and the hole wall of the second hole has an internal thread The outer wall of the pressing portion has an external thread, and the pressing portion is screwed to the second hole

[权利要求 4] 如权利要求 3所述的硬管管接头，其特征在于，所述压紧部的端部外壁具有缩径台阶。 [Claim 4] The hard pipe joint according to claim 3, wherein an outer wall of the end portion of the pressing portion has a reduced diameter step.

[权利要求 5] 如权利要求 4所述的硬管管接头，其特征在于，所述紧固件的第二通孔包括支撑孔道，所述支撑孔道内径与管体外径相等。 [Claim 5] The hard pipe joint of claim 4, wherein the second through hole of the fastener comprises a support hole, the inner diameter of the support hole being equal to the outer diameter of the pipe body.

[权利要求 6] 如权利要求 5所述的硬管管接头，其特征在于，所述紧固件的第二通孔还包括中间孔道和调整孔道，所述中间孔道与支撑孔道连通，其内径大于管体外径，所述调整孔道与中间孔道连通，其成敞口状。 [Claim 6] The hard pipe joint according to claim 5, wherein the second through hole of the fastener further comprises an intermediate hole and an adjustment hole, wherein the intermediate hole communicates with the support hole, and the inner diameter thereof It is larger than the outer diameter of the pipe body, and the adjustment hole communicates with the middle hole, which is open.

[权利要求 7] —种接管加工装置，其特征在于，包括： [Claim 7] A take-over processing apparatus, comprising:

底座；管模组件，所述管模组件设置于底座上，其具有第一管模和第二管模，所述第一管模和第二管模围成管体腔； Base a tube mold assembly, the tube mold assembly is disposed on the base, and has a first tube mold and a second tube mold, the first tube mold and the second tube mold enclosing the tube body cavity;

球模组件，所述球模组件包括球模和芯模，所述球模具有与接管头体的球面形外壁相适配的球头腔，所述芯模穿过球模并与接管的第二通孔位置适配，所述球模抵接第一管模和第二管模，所述球头腔与管体腔连通； a ball die assembly, the ball die assembly comprising a ball die and a core die, the ball die having a ball head cavity adapted to a spherical outer wall of the takeover head body, the core die passing through the ball die and the takeover The second through hole is adapted to be in position, the ball mold abuts the first tube mold and the second tube mold, and the ball head chamber is in communication with the tube body cavity;

锁紧件，所述锁紧件可调整管体腔大小，使管体腔松幵或锁紧接管；以及加力件，所述加力件可使球模和芯模将接管的头体压延形成球面形。 a locking member, the locking member can adjust the size of the tubular body cavity to loosen or lock the tubular body cavity; and a force-applying member, wherein the force-applying member can cause the ball mold and the core mold to roll the head body of the take-up to form a spherical surface shape.

如权利要求 7所述的接管加工装置，其特征在于，所述管模组件还包括接管模具体，所述接管模具体固定在底座上，所述接管模具体具有凹槽，所述第一管模和第二管模置于所述凹槽内，所述接管模具体的一端被限位，所述锁紧件抵住第一管模和 /或第二管模，并与接管模具体可调式联接。 The pipe processing device according to claim 7, wherein the pipe die assembly further comprises a nozzle die body, the nozzle die body is fixed on the base, and the nozzle die body has a groove, the first a tube mold and a second tube mold are disposed in the groove, one end of the nozzle mold body is constrained, the locking member abuts the first tube mold and/or the second tube mold, and the nozzle mold body Adjustable connection.

如权利要求 8所述的接管加工装置，其特征在于，所述球模组件还包括球头模具体，所述球头模具体固定在底座上，且抵接接管模具体，所述球头模具体具有导向凹槽，所述球模和芯模设置在导向凹槽内，所述加力件抵住球模和芯模，并与球头模具体可调式联接。 The pipe processing device according to claim 8, wherein the ball die assembly further comprises a ball die body, the ball die body is fixed on the base, and abuts the nozzle die body, the ball head The mold body has a guiding groove, and the ball mold and the core mold are disposed in the guiding groove, and the force-applying member is pressed against the ball mold and the core mold, and is coupled to the ball-end mold body.

一种接管加工方法，其特征在于，所述方法是采用冷压延成型工艺将接管的头体压延形成球面形。 A nozzle processing method, characterized in that the method is to use a cold calendering process to calender the head of the nozzle to form a spherical shape.