CN218926551U

CN218926551U - Friction welding tool structure and friction welding equipment

Info

Publication number: CN218926551U
Application number: CN202223600097.9U
Authority: CN
Inventors: 邓绍振; 王宇伟; 何福顺
Original assignee: Loudi Zhongxing Hydraulic Parts Co Ltd
Current assignee: Loudi Zhongxing Hydraulic Parts Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-28
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to the technical field of friction welding, and provides a friction welding tool structure and friction welding equipment. The friction welding tool structure comprises a main shaft clamping block, a friction welding core rod and a tail top tool, wherein a clamping groove is formed in one side of the main shaft clamping block, the friction welding core rod is located in the clamping groove, the friction welding core rod is suitable for being connected with an earring in a penetrating mode, one end of the tail top tool forms an abutting face, one end of the abutting face of the tail top tool is provided with a slot, the abutting face is suitable for being matched with the step position of the tail of the rod body in an abutting mode, and the slot is suitable for being matched with the tail of the rod body in an inserting mode. According to the friction welding tool structure provided by the utility model, the earrings can be fixed through the main shaft clamping blocks and the friction welding core rods, the rod tail can be inserted into the slot when the rod tail is jacked by the tail jack tool, the abutting surface of the tail jack tool is in abutting fit with the step position of the rod tail of the rod body, the deformation caused by overlarge stress of the rod tail can be avoided, the processing precision of the piston rod is ensured, and the yield is improved.

Description

Friction welding tool structure and friction welding equipment

Technical Field

The utility model relates to the technical field of friction welding, in particular to a friction welding tool structure and friction welding equipment.

Background

The solid piston rod of the excavator adopts a braking friction welding process, a single-side material (earring) is rotated, a certain thrust is exerted on the material (rod body) on the other side through an oil cylinder, the contact surface of the earring and the rod body is subjected to friction, the temperature rises, a high-temperature layer is formed, then the rotation is stopped suddenly, high pressure (top pressure) is further exerted, the solid phase connection of the material is realized under the conditions of high temperature and high pressure for a certain time.

At present, an oil cylinder is adopted to drive a plane top rod body in a slender rod tail (phi 40mm or less) friction welding rod tail tool, and the following defects exist:

1) In the friction welding process, the rod body gradually pushes and rubs the rod head under the thrust action of the tail top oil cylinder, and as the acting force applied by the tail top oil cylinder is large (F is more than or equal to 700 KN), the rod tail is used as a part directly bearing pressure, and according to P=F/S, the smaller the diameter of the rod tail is, the larger the pressure born by the unit area is, so that the risk of bending the rod tail is larger;

2) After friction welding is carried out for a certain time, the club head is suddenly stopped to rotate, the tail top oil cylinder further applies high pressure and ensures a certain time, the instantaneous pressure born by the club tail is aggravated, the risk of stress bending of the club tail is obviously increased, and even the club tail is likely to be directly broken, so that scrapping is caused;

3) After the tail of the rod is bent, the center hole is processed in the center hole punching process, the piston rod body is processed in the subsequent machining process, and an obvious single side is formed, so that the piston rod is scrapped.

Disclosure of Invention

The utility model provides a friction welding tool structure and friction welding equipment, which are used for solving the problem that an elongated rod tail is easy to damage during friction welding in the prior art.

The utility model provides a friction welding tooling structure, comprising:

a main shaft clamping block, wherein a clamping groove is formed in one side of the main shaft clamping block;

a friction welding core rod positioned in the clamping groove, wherein the friction welding core rod is suitable for penetrating through the earring; and

the tail top frock, the one end of tail top frock forms the butt face, the tail top frock is in butt face one end is provided with the slot, the butt face is suitable for the butt cooperation with the pole tail step position butt of the body of rod, the slot be suitable for with the pole tail grafting cooperation of the body of rod.

According to the friction welding tooling structure provided by the utility model, the friction welding tooling structure further comprises:

one end of the ejector rod is connected with one end of the tail top tool, which is away from the abutting surface;

and the jacking driving mechanism is connected with the ejector rod and used for driving the ejector rod to axially move.

According to the friction welding tooling structure provided by the utility model, the jacking driving mechanism comprises:

the horizontal guide rail is arranged in parallel with the ejector rod;

the support sliding block is connected with the ejector rod and is in sliding connection with the horizontal sliding rail;

the cylinder barrel of the tail top oil cylinder is fixed with the relative position of the horizontal guide rail, and a piston rod of the tail top oil cylinder is fixedly connected with the supporting sliding block.

According to the friction welding tool structure provided by the utility model, the supporting sliding block comprises:

the sliding block body is arranged on the horizontal sliding rail in a sliding manner;

the bearing part is fixedly arranged on the sliding block body and is supported on the lower side of the ejector rod;

the ejector blocks are provided with a first state positioned on the axial extension line of the ejector rod and a second state positioned outside the axial extension line of the ejector rod, and when each ejector block is in the first state, the ejector blocks are sequentially arranged adjacently along the axial direction of the ejector rod; and

the driving assembly is respectively connected with each top block, and is suitable for driving at least one top block to switch states when the driving assembly acts.

According to the friction welding tool structure provided by the utility model, the driving assembly comprises:

the telescopic driving pieces are perpendicular to the axial direction of the ejector rod, and are in one-to-one correspondence connection with the ejector blocks.

According to the friction welding tool structure provided by the utility model, the sliding block body further comprises:

the mold changing box is fixedly connected with the sliding block body, a perforation is formed in one side of the mold changing box, the ejector rod penetrates through the perforation, and the ejector block is located in the mold changing box.

According to the friction welding tool structure provided by the utility model, the upper side of the bearing part is provided with the arc-shaped surface matched with the side wall of the ejector rod.

According to the friction welding tool structure provided by the utility model, the ejector rod is detachably connected with the tail top tool.

According to the friction welding tool structure provided by the utility model, the depth of the slot is larger than the length of the rod tail.

The utility model also provides friction welding equipment, which comprises the friction welding tool structure.

According to the friction welding tool structure provided by the utility model, the earrings can be fixed through the main shaft clamping blocks and the friction welding core rods, the rod tail can be inserted into the slot when the rod tail is jacked by the tail jack tool, the abutting surface of the tail jack tool is in abutting fit with the step position of the rod tail of the rod body, the deformation caused by overlarge stress of the rod tail can be avoided, the processing precision of the piston rod is ensured, and the yield is improved.

Further, in the friction welding equipment provided by the utility model, the friction welding tooling structure is provided, so that the friction welding equipment also has the advantages.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a friction welding tooling structure provided by the utility model;

FIG. 2 is a schematic diagram of a performance tail top tooling in a friction welding tooling structure provided by the utility model;

FIG. 3 is a schematic diagram showing a top pressure driving mechanism in a friction welding tool structure provided by the utility model;

reference numerals: 100. a spindle clamp block; 110. a clamping groove; 200. friction welding a core rod; 300. ear rings; 400. a rod body; 410. a rod tail; 500. tail top tooling; 510. an abutment surface; 520. a slot; 600. a push rod; 700. a top pressure driving mechanism; 710. a horizontal guide rail; 720. a tail top oil cylinder; 730. a slider body; 740. a support part; 741. an arc surface; 750. a top block; 760. a telescopic driving member; 770. and a mold changing box.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The friction welding tool structure according to the embodiment of the present utility model, which can be clamped when friction welding a piston rod, to achieve friction welding of an ear ring 300 and a rod body 400 of the piston rod, will be described with reference to fig. 1 to 3.

Referring to fig. 1 and 2, the friction welding tool structure of the embodiment of the utility model includes a main shaft clamping block 100, a friction welding mandrel 200 and a tail top tool 500, wherein a clamping groove 110 is arranged at one side of the main shaft clamping block 100; the friction welding mandrel 200 is positioned in the clamping groove 110, and the friction welding mandrel 200 is suitable for penetrating and connecting with the earring 300; one end of the tail top tooling 500 forms an abutting surface 510, one end of the abutting surface 510 of the tail top tooling 500 is provided with a slot 520, the abutting surface 510 is suitable for abutting and matching with the step position of the rod tail 410 of the rod body 400, and the slot 520 is suitable for splicing and matching with the rod tail 410 of the rod body 400.

In the above-mentioned scheme, when the friction welding mandrel 200 is inserted into the ear ring 300 and the friction welding mandrel 200 is located in the clamping groove 110, the ear ring 300 may be driven to rotate by the main shaft of the friction welding device, and the rod body 400 is pushed in by the tail top tool 500 towards the ear ring 300, and in the pushing process, because the abutment surface 510 of the tail top tool 500 is in abutment engagement with the step of the rod tail 410, the pressure is transferred to the rod body 400 from the step of the rod tail 410, so that the extrusion deformation of the thinner part of the rod tail 410 can be effectively avoided. It can be understood that the post-working procedure of the step is required to be processed again, so that even if the part is damaged in a certain degree in the welding process, the post-working procedure has enough margin to process the part, and the normal use of the piston rod is not affected.

In the embodiment of the present utility model, the diameter of the slot 520 may be the same as the diameter of the tail 410, or may be smaller than the diameter of the tail 410, which is not particularly limited herein.

Optionally, the depth of the slot 520 in the tail top tooling 500 is greater than the length of the tail 410, and a certain distance may be reserved between the tail end of the tail 410 and the bottom of the slot 520, so as to further avoid damage to the tail 410.

Referring to fig. 1 and 3, in some embodiments of the present utility model, the friction welding tool structure further includes a mandrel 600 and a pressing driving mechanism 700, where one end of the mandrel 600 is connected to one end of the tail top tool 500 facing away from the abutment surface 510; the jacking driving mechanism 700 is connected with the ejector rod 600 and is used for driving the ejector rod 600 to axially move, and when the jacking driving mechanism drives the ejector rod 600 to axially move towards the direction close to the spindle clamping block 100, axial pressure can be applied to the rod body 400 of the piston rod through the tail jacking tool 500.

Optionally, the jacking driving mechanism 700 includes a horizontal guide rail 710, a supporting slider and a tail top cylinder 720, where the horizontal guide rail is parallel to the ejector rod 600, the supporting slider is connected to the ejector rod 600 and is slidably connected to the horizontal guide rail, a cylinder barrel of the tail top cylinder 720 is fixed to a relative position of the horizontal guide rail 710, and a piston rod of the tail top cylinder 720 is fixedly connected to the supporting slider. When the tail top oil cylinder 720 stretches, the supporting slider can be driven to slide along the horizontal guide rail 710, so as to drive the ejector rod 600 to axially move. Of course, the tail jack oil cylinder 720 in the embodiment of the present utility model may be replaced by a driving structure such as an air cylinder or a telescopic motor, but the embodiment of the present utility model preferably adopts an oil cylinder structure in view of the magnitude of the applied pressure and the structural stability.

Optionally, the support slider includes a slider body 730, a bearing 740, a top block 750, and a drive assembly. The slider body 730 is slidably disposed on the horizontal rail. The supporting portion 740 is fixedly arranged on the slider body 730, can slide along the horizontal guide rail 710 synchronously with the slider body 730, is supported on the lower side of the ejector rod 600, can keep the ejector rod 600 horizontal, is in contact fit with the ejector rod 600, is not fixed, and can slide horizontally and axially on the supporting portion 740. The top blocks 750 are provided with at least two, the top blocks 750 are provided with a first state positioned on the axial extension line of the top rod 600 and a second state positioned outside the axial extension line of the top rod 600, and when each top block 750 is in the first state, the top blocks 750 are sequentially and adjacently arranged along the axial direction of the top rod 600. The driving components are respectively connected with the top blocks 750, and the driving components are suitable for driving at least one top block 750 to switch states when in action.

When the ejector block 750 is in the first state, the ejector block 750 can limit the ejector rod 600 to move in a direction far away from the tail top tool 500, so as to play a supporting role on the ejector rod 600, and it can be understood that when more than two ejector blocks 750 are in the first state, the ejector block 750 close to the tail top tool 500 is in contact fit with the ejector rod 600, and the ejection position of the ejector rod 600 can be controlled by controlling the ejector block 750 to switch between the first state and the second state. In addition, it can be appreciated that when more than two top blocks 750 are required to be in the first state, it is preferable to control the adjacent top blocks 750 to switch to the first state, and the top blocks 750 can support each other, so as to increase the support stability.

In the above-mentioned scheme, the processing demand of the piston rod of different length can be satisfied through the state switching of control each kicking block 750, when the longer piston rod of needs processing length, can switch to the first state through the drive assembly drive more kicking blocks 750, when the shorter piston rod of needs processing length, can switch to the second state through the drive assembly drive more kicking blocks 750.

It should be noted that, each top block 750 may be provided with the same thickness, or at least one top block 750 may be provided with a thickness different from that of other top blocks 750, which is not particularly limited herein.

Optionally, the driving assembly includes at least two telescopic driving members 760, the telescopic driving members 760 are perpendicular to the axial direction of the ejector rod 600, and the telescopic driving members 760 are connected to the ejector blocks 750 in a one-to-one correspondence. The telescopic driving member 760 in this embodiment may employ an oil cylinder, an air cylinder, a telescopic motor, or the like.

Optionally, the telescoping drive 760 is disposed vertically downward.

In the above-described scheme, the correspondingly connected top block 750 is switched to the first state when the telescopic driving piece 760 is extended, and the corresponding top block 750 is switched to the second state when the telescopic driving piece 760 is shortened.

Referring to fig. 3, in some embodiments of the present utility model, the slider body 730 further includes a mold box 770, the mold box 770 is fixedly connected with the slider body 730, a through hole is provided on one side of the mold box 770, a push rod 600 is disposed through the through hole, the push rod 600 can slide in the through hole, a push block 750 is located in the mold box 770, and a telescopic driving member 760 is fixedly connected to the mold box 770. It should be noted that, an end plate is disposed at an end of the mold changing box 770 facing away from the through hole, and when all the top blocks 750 are in the second state, the end plate of the mold changing box 770 can play a limiting role on the top rod 600.

In some embodiments of the present utility model, the upper side of the supporting portion 740 is provided with an arc surface 741 adapted to the sidewall of the ejector rod 600, so as to better support the ejector rod 600 and avoid the ejector rod 600 from deflecting when adjusting the pressing position.

In some embodiments of the present utility model, the ejector pin 600 is detachably connected to the tail top tool 500, for example, the ejector pin 600 is connected to the tail top tool 500 by a bolt or a clamping connection. Therefore, the tail top tool 500 can be conveniently replaced when the tail top tool 500 is damaged or a piston rod of other types needs to be processed.

The embodiment of the utility model also provides friction welding equipment, which comprises the friction welding tool structure, wherein a main shaft of the friction welding equipment is connected with the main shaft clamping block 100.

The friction welding equipment provided by the utility model can realize friction welding of the piston rod, and can prevent the tail 410 of the piston rod from being damaged when the piston rod is processed due to the friction welding tool structure, so that the processing efficiency and the yield of the piston rod are effectively improved, and in addition, the processing requirements of the piston rods with different sizes can be met.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A friction welding tooling structure, comprising:

2. The friction welding tooling structure of claim 1, further comprising:

3. The friction welding tooling structure of claim 2 wherein the top pressure drive mechanism comprises:

the horizontal guide rail is arranged in parallel with the ejector rod;

the support slide block is connected with the ejector rod and is in sliding connection with the horizontal guide rail;

4. A friction welding tooling structure according to claim 3 wherein the support slide comprises:

the sliding block body is arranged on the horizontal guide rail in a sliding manner;

5. The friction welding tooling structure of claim 4, wherein the drive assembly comprises:

6. The friction welding tooling structure of claim 4, wherein the slider body further comprises:

7. The friction welding tool structure according to claim 4, wherein an arc-shaped surface matched with the side wall of the ejector rod is arranged on the upper side of the bearing portion.

8. A friction welding tooling structure according to any one of claims 2 to 7 wherein the ejector pin is detachably connected to the tail-top tooling.

9. The friction welding tooling structure of claim 1 wherein the depth of the slot is greater than the length of the shank tail.

10. A friction welding apparatus comprising a friction welding tooling structure as claimed in any one of claims 1 to 9.