Cylinder barrel welding circumferential angle positioning tool

Abstract

The utility model provides a cylinder barrel welding circumference angle positioning tool which comprises a tool body, a sliding shaft, a cylinder barrel positioning pin, a cylinder barrel supporting block and a sliding shaft reset mechanism, a positioning datum plane is arranged on the tool body, and the sliding shaft is arranged in the tool body in a sliding and sleeved mode. The sliding shaft reset mechanism is arranged on the tool body and used for pushing the sliding shaft to move at the initial position, the cylinder barrel positioning pin is vertically arranged at the front end of the sliding shaft, the cylinder barrel supporting block is detachably arranged at the front end of the tool body, a directional sliding way is arranged on the cylinder barrel supporting block, and the directional sliding way is used for pushing the sliding shaft to move. The cylinder barrel positioning pins are clamped in the directional sliding ways, the upper portions of the cylinder barrel positioning pins can be inserted into oil holes in the side walls of the corresponding cylinder barrels, and the cylinder barrel supporting blocks are used for achieving radial stable supporting of one ends of the corresponding cylinder barrels. By means of the tool, circumferential angle positioning of the cylinder barrel can be rapidly achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cylinder barrel processing technical field, concretely is a kind of cylinder barrel welding circumferential angle positioning tool. BACKGROUND

[0002] In prior art, for the injection or discharge of hydraulic oil in rodless cavity and rod cavity of hydraulic cylinder, corresponding oil hole is generally drilled on the side wall of cylinder barrel, and the injection or discharge of hydraulic oil is realized by using oil hole, for the butt joint of oil hole and hydraulic system pipeline, a pipe fitting joint is generally welded on oil hole. With the continuous development of welding robot, the pipe fitting joint on cylinder barrel is generally automatically welded by welding robot at present, before automatic welding, pipe fitting joint is first pre-fixed on corresponding oil hole by spot welding, then the transverse placement clamping positioning of cylinder barrel is realized by using chuck and tailstock of machine tool, after cylinder barrel is placed horizontally, pipe fitting joint is adjusted in angle in circumferential surface by artificial angle instrument, during angle adjustment, the top pressure of tailstock on cylinder barrel needs to be reduced so that cylinder barrel can rotate, after angle adjustment, tailstock is used to clamp again, because the circumferential angle positioning of pipe fitting joint is realized by artificial angle instrument, the positioning accuracy is not high, and when cylinder barrel is clamped again by tailstock, sometimes cylinder barrel rotates, when cylinder barrel rotates too much, angle positioning needs to be performed again, so that angle positioning efficiency is not convenient to improve, under the condition that the angle positioning of pipe fitting joint is not high, when pipe fitting joint and cylinder barrel side wall are welded by welding robot subsequently, single-sided fusion of weld is often poor, so that the welding quality of pipe fitting joint is affected. SUMMARY

[0003] The utility model discloses a kind of cylinder barrel welding circumferential angle positioning tool, utilize the tool to be quickly realized the circumferential angle positioning of cylinder barrel, then the quick positioning of pipe fitting joint on cylinder barrel is realized, and the angle positioning accuracy of cylinder barrel is high also without repeatedly adjusting positioning, so that the consistency of angle positioning can be guaranteed, then effectively improve the welding quality of pipe fitting joint on cylinder barrel.

[0004] The utility model discloses a technical scheme that solves its technical problem is adopted: a kind of cylinder welding circumference angle positioning tool, including tool main body, sliding shaft, cylinder positioning pin, cylinder support block, sliding shaft reset mechanism, positioning reference plane is set on the tool main body, the sliding shaft sliding sleeve is placed in the tool main body, the sliding shaft reset mechanism is set on the tool main body and sliding shaft reset mechanism is used to push the initial position of the sliding shaft movement, the cylinder positioning pin is vertically arranged at the front end of the sliding shaft, and the central axis of cylinder positioning pin is with the front-back symmetry horizontal axis of the positioning reference plane in the same plane, the cylinder support block is detachably arranged at the front end of the tool main body, directional slide is set on the cylinder support block, the cylinder positioning pin is clamped in the directional slide, and the upper part of cylinder positioning pin can be inserted into the oil hole on the sidewall of corresponding cylinder, the sidewall of the cylinder positioning pin is fitted with the sidewall of the directional slide, and the cylinder support block is used to realize the radial stable support of one end of corresponding cylinder.

[0005] Preferably, the tool main body is in the shape of a stepped shaft, and the positioning reference plane is arranged on the large cylindrical sidewall of the tool main body.

[0006] Further, the sliding shaft is in the shape of T, a stepped hole matched with the sliding shaft is arranged on the tool main body, and the sliding shaft is sleeved in the stepped hole.

[0007] Further, the sliding shaft reset mechanism is a spring, the spring is sleeved in the stepped hole, and a plug for plugging the rear end of the stepped hole is arranged at the rear end of the stepped hole.

[0008] Further, an annular boss coaxial with the stepped hole is arranged at the front part of the tool main body.

[0009] Further, the cylinder support block comprises a positioning plate and a ∩-shaped plate, the ∩-shaped plate is vertically fixed on the positioning plate along the axial direction of the positioning plate, the arc surface of the ∩-shaped plate is coaxially distributed with the positioning plate, the outer diameter of the arc surface of the ∩-shaped plate is equal to the outer diameter of the positioning plate, the outer diameter of the positioning plate is equal to the inner diameter of the corresponding cylinder, the outer diameter of the positioning plate is smaller than the outer diameter of the large cylinder of the tool main body, and the directional slide is arranged on the arc segment of the ∩-shaped plate.

[0010] Further, a first through hole distributed along the radial direction of the annular boss is arranged on the annular boss, a second through hole corresponding to the first through hole is arranged on the positioning plate, and an internally threaded cylindrical pin is sleeved in the first through hole and the second through hole.

[0011] The utility model discloses beneficial effect is: the utility model simple structure, processing and manufacturing are convenient, after realizing the zero point positioning of tool body on the chuck of machine tool in the utilization positioning reference plane, when the pipe fitting joint welding on the cylinder barrel in the subsequent batch, do not need to carry out the adjustment of the circumference angle of tool body, thereby making initial circumference angle positioning operation convenient also benefit guaranteeing the positioning consistency of batch welding pipe fitting joint, when tool body completes the circumference angle positioning, directly with the cylinder barrel sleeve is placed on the cylinder barrel support block and makes the cylinder barrel positioning pin insert into corresponding oil hole, and the circumference angle positioning of above-mentioned cylinder barrel is simple, and the circumference angle positioning efficiency of cylinder barrel is convenient to improve, and then benefit improving the welding efficiency of pipe fitting joint and cylinder barrel, through the dismounting of internal thread cylindrical pin, the replacement of cylinder barrel support block of different specifications can be realized, thereby convenient for the utility model realizes the circumference angle positioning of cylinder barrel of different specifications, after completing welding, when the tailstock top pressure is relieved, then the pushing action of spring to sliding shaft is utilized, then the cylinder barrel on the cylinder barrel support block is conveniently and smoothly pushed out, thereby convenient for realizing the blanking quickly. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduce, obviously, below description in the drawing is part preferred embodiment of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, also can obtain other drawings according to these drawings.

[0013] Figure 1 It is the overall structure schematic view of the utility model;

[0014] Figure 2 It is the overall structure side view of the utility model;

[0015] Figure 3 It is the overall structure longitudinal section view of the utility model;

[0016] Figure 4 It is the front view of the utility model;

[0017] In the drawing: 1 tool body, 11 large cylinder, 111 positioning reference plane, 12 small original cylinder, 13 stepped hole, 14 plug, 15 annular boss, 2 sliding shaft, 3 cylinder barrel positioning pin, 4 cylinder barrel support block, 41 positioning plate, 411 second through hole, 42 cross plate, 421 arc segment, 422 circular surface, 43 directional slide, 5 spring, 6 internal thread cylindrical pin. DETAILED DESCRIPTION

[0018] Below will combine specific embodiment and the drawing of the utility model to be described in detail. Figures 1-4To clearly and completely describe the technical solutions in the embodiments of the present application, obviously, the described embodiments are only a part of the preferred embodiments of the present application, not all the embodiments. Those skilled in the art can make similar modifications without departing from the connotation of the present application, therefore, the present application is not limited by the specific embodiments disclosed below.

[0019] The utility model provides a kind of cylinder welding circumference angle positioning tool (such as Figure 1The utility model provides a kind of cylinder horizontal transverse placement fixed device, including tool body 1, sliding shaft 2, cylinder positioning pin 3, cylinder support block 4, sliding shaft reset mechanism, in actual application, tool body 1 is fixedly installed on chuck of machine tool, using tailstock of machine tool and the clamping positioning of tool body 1 to cylinder, realize the horizontal transverse placement fixed of cylinder, a positioning reference plane 11 is provided on the tool body 1, in actual application, positioning reference plane 11 can be set into rectangle, when positioning reference plane 11 is horizontally placed state, then realize the circumferential angle positioning of tool body 1, to realize the zero point positioning of tool body 1, sliding shaft 2 is slidably arranged in tool body 1, and sliding shaft 2 can freely reciprocate in tool body 1, sliding shaft reset mechanism is arranged on tool body 1 and sliding shaft reset mechanism is used to push the initial position of sliding shaft 2, cylinder positioning pin 3 is vertically arranged in the front end of sliding shaft 2, and the center axis of cylinder positioning pin 3 is in the same plane with the front-back symmetry horizontal axis of positioning reference plane 11, using the above setting mode of cylinder positioning pin 3, then realize the circumferential angle positioning of cylinder positioning pin 3 on tool body 1, when tool body 1 realizes zero point positioning using positioning reference plane 11, then synchronously realize the zero point positioning of the circumferential angle of cylinder positioning pin 3, cylinder support block 4 is detachably arranged in the front end of tool body 1, a directional slide 43 is arranged on cylinder support block 4, cylinder positioning pin 3 is clamped in directional slide 43, and the upper portion of cylinder positioning pin 3 can be inserted into the oil hole in the side wall of corresponding cylinder, the side wall of cylinder positioning pin 3 is fitted with the side wall of directional slide 43, in the reciprocating sliding process of sliding shaft 2, using the clamping of directional slide 43 to cylinder positioning pin 3, then effectively prevent the rotation of cylinder positioning pin 3, in turn can guarantee the accuracy of the circumferential positioning angle of cylinder positioning pin 3, when the oil hole on the cylinder is arranged on the upper portion of cylinder positioning pin 3, because the side wall of cylinder positioning pin 3 is basically fitted with the side wall of oil hole, therefore, using cylinder positioning pin 3 can realize the angle positioning of the circumferential direction of cylinder, after the circumferential angle of cylinder is positioned, then synchronously realize the angle positioning of the circumferential direction of pipe fitting joint fixed on the outside of oil hole, cylinder support block 4 is used to realize the radial stable support of one end of corresponding cylinder, in actual application, corresponding cylinder support block 4 can be set for different cylinder inner diameters, when welding processing of different cylinders is carried out, corresponding cylinder support block 4 is replaced, in turn, the flexible application of the utility model is realized, after the tailstock of machine tool stably presses cylinder on tool body 1, cylinder realizes axial movement limiting, in actual application, the distance from the center axis of oil hole to cylinder end face is generally constant, so when the movement limiting of cylinder end face is realized using tool body 1, then the axial positioning of oil hole is realized, the circumferential angle and axial position of oil hole are all positioned, then realize the positioning of pipe fitting joint, subsequent can realize the accurate automatic welding of pipe fitting joint using welding robot.

[0020] On the basis of the above-mentioned embodiments, in order to facilitate the effective stable clamping of the tool body 1 on the machine tool chuck and the stable and effective adhesion of the tool body 1 to the end face of the cylinder, the tool body 1 is in the shape of a stepped shaft, specifically, the tool body 1 includes a large cylinder 11 and a small cylinder 12, the large cylinder 11 and the small cylinder 12 are fixed and coaxially connected, the chuck of the machine tool can clamp the small cylinder 12, and the positioning reference plane 11 is arranged on the sidewall of the large cylinder 11 of the tool body 1. Further, in order to facilitate the reciprocating sliding and positioning of the sliding shaft 2 in the tool body 1, the sliding shaft 2 is in the shape of a T, a stepped hole 13 matched with the sliding shaft 2 is arranged on the tool body 1, the sliding shaft 2 is sleeved in the stepped hole 13, the stepped hole 13 is used to limit the shaft shoulder of the sliding shaft 2, and the sliding shaft 2 is effectively prevented from being pushed out of the tool body 1 by the sliding shaft reset mechanism.

[0021] On the basis of the above-mentioned embodiments, the specific implementation of the sliding shaft reset mechanism is that the sliding shaft reset mechanism is a spring 5, the spring 5 is sleeved in the stepped hole 13, a plug 14 for plugging the rear end of the stepped hole 13 is arranged at the rear end of the stepped hole 13, and the plug 14 can be fixedly connected with the rear end of the small cylinder 12 in a welding manner or a threaded connection manner.

[0022] On the basis of the above-mentioned embodiments, in order to facilitate the installation and fixation of the cylinder support block 4 on the large cylinder 11, here, an annular boss 15 coaxial with the stepped hole 13 is arranged on the front part of the tool body 1, that is, the annular boss 15 is fixedly arranged on the front part of the large cylinder 11. Further, the specific embodiment of the cylinder support block 4 is that the cylinder support block 4 comprises a positioning plate 41 and a ∩-shaped plate 42. In this specific embodiment, the positioning plate 41 is a semi-annular plate or an annular plate, the ∩-shaped plate 42 is fixedly arranged on the positioning plate 41 in the axial direction of the positioning plate 41, and the circular arc surface 422 of the ∩-shaped plate 42 is coaxially distributed with the positioning plate 41. The outer diameter of the circular arc surface 422 of the ∩-shaped plate 42 is equal to the outer diameter of the positioning plate 41, and the outer diameter of the positioning plate 41 is equal to the inner diameter of the corresponding cylinder. By using the above design, the arc surface 422 and the outer side wall of the positioning plate 41 are both in close contact with the inner side wall of the cylinder, thereby achieving stable radial support of the cylinder. Since the radial height of the ∩-shaped plate 42 is much smaller than the inner diameter of the cylinder, after the inner side of the cylinder is sleeved onto the ∩-shaped plate 42, the cylinder can be lifted to a certain height, so that the upper part of the cylinder positioning pin 3 can be smoothly inserted into the corresponding oil hole of the cylinder. After the insertion of the cylinder positioning pin 3 in the oil hole is completed, the positioning of the cylinder in the circumferential direction angle is achieved, thereby making the circumferential direction angle positioning of the cylinder convenient and fast, and when batch cylinder welding is carried out, the consistency of the circumferential direction positioning angle can be ensured. The outer diameter of the positioning plate 41 is smaller than the outer diameter of the large cylinder 11 of the tool body 1, and the outer diameter of the large cylinder 11 is larger than the outer diameter of the positioning plate 41, so that the axial movement positioning of the cylinder 3 can be realized by using the large cylinder 11. In actual application, when the machine tool tailstock pushes the cylinder to move axially, the end face of the cylinder abuts against the outer end face of the large cylinder 11, thereby achieving the axial positioning of the cylinder. After the axial positioning of the cylinder is completed, the angle positioning and axial positioning of the cylinder in the circumferential direction are achieved, thereby achieving the welding positioning of the cylinder; the directional slide 43 is arranged on the arc segment 421 of the ∩-shaped plate 42. After the welding work of the pipe joint on the cylinder is completed, the pressing action of the machine tool tailstock on the cylinder is first released. After the tailstock pressing force is released, the cylinder positioning pin 3 is pushed outward by the spring to move the cylinder, so that the end part of the cylinder is separated from the outer side of the positioning plate 41, thereby facilitating the subsequent smooth lifting of the cylinder, so as to realize the separation of the cylinder positioning pin 3 from the oil hole of the cylinder, thereby facilitating rapid unloading.

[0023] On the basis of the above-mentioned embodiments, the specific implementation mode of the positioning plate 41 being connected and positioned with the annular boss 15 is that a first through hole distributed along the radial direction of the annular boss 15 is arranged on the annular boss 15, a second through hole 411 corresponding to the first through hole is arranged on the positioning plate 41, and an internally threaded cylindrical pin 6 is sleeved in the first through hole and the second through hole 411, so that the circumferential direction positioning of the positioning plate 41 and the annular boss 15 is realized by the internally threaded cylindrical pin 6; when the cylinder support block 4 needs to be replaced, a corresponding threaded rod is screwed into the internally threaded cylindrical pin 6, then the internally threaded cylindrical pin 6 is pulled out of the second through hole 411 and the first through hole, so that the disassembly of the cylinder support block 4 and the annular boss 15 is realized, then a suitable model of the cylinder support block 4 is selected and is reinstalled on the annular boss 15 by the internally threaded cylindrical pin 6, thereby completing the replacement of the cylinder support block 4. In actual application, the conventional inner diameter of the cylinder is 60 mm, 80 mm and the like, and in order to facilitate the machining of the cylinder with different inner diameters, the outer diameter of the positioning plate 41 of the cylinder support block 4 is sequentially arranged to be 60 mm, 80 mm and the like.

[0024] The welding positioning operation process of the pipe joint on the cylinder by using the utility model is as follows: first, the tool main body 1 is clamped and fixed on the machine tool tool rest, then the zero position alignment is realized by using the positioning reference plane 11, then one end of the cylinder is sleeved on the cylinder support block 4 and the cylinder positioning pin 3 is inserted into the corresponding oil hole at the same time, then the tailstock of the machine tool pushes the cylinder, so that the end face of the cylinder abuts against the side surface of the large cylinder 11 of the tool main body 1, and after the tailstock is tightly pushed, the circumferential direction angle positioning and the axial positioning of the cylinder are realized, and then the positioning of the pipe joint outside the oil hole is realized, so that the subsequent welding of the pipe joint on the cylinder by using the welding robot is facilitated, and the above-mentioned cylinder positioning operation is simple and convenient.

[0025] In the utility model, "upper", "lower", "front", "rear", "left" and "right" are relative positions for the convenience of describing the positional relationship, and therefore cannot be understood as absolute positions for limiting the protection scope.

[0026] In addition to the technical features described in the specification, they are known technologies of the professional technical personnel.

[0027] The preferred embodiments and examples of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments and examples, and for ordinary technical personnel in the technical field, some improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A cylinder welding circumferential angle positioning tool, characterized in that, The utility model provides a kind of cylinder positioning device, including tool body, sliding shaft, cylinder positioning pin, cylinder support block, sliding shaft reset mechanism, a positioning reference plane is provided on the tool body, the sliding shaft sliding sleeve is placed in the tool body, the sliding shaft reset mechanism is arranged on the tool body and sliding shaft reset mechanism is used to push the initial position of the sliding shaft movement, the cylinder positioning pin is vertically arranged at the front end of the sliding shaft, and the center axis of the cylinder positioning pin is in the same plane with the front-back symmetry horizontal axis of the positioning reference plane, the cylinder support block is detachably arranged at the front end of the tool body, a directional slide is provided on the cylinder support block, the cylinder positioning pin is clamped in the directional slide, and the upper part of the cylinder positioning pin can be inserted into the oil hole on the side wall of the corresponding cylinder, the side wall of the cylinder positioning pin is fitted with the side wall of the directional slide, and the cylinder support block is used to realize the radial stable support of one end of the corresponding cylinder.

2. The cylinder welding circumferential angle positioning tool according to claim 1, characterized in that, The tool body is in the shape of a stepped shaft, and the positioning reference plane is arranged on the large cylindrical side wall of the tool body.

3. The cylinder welding circumferential angle positioning tool according to claim 2, characterized in that, The sliding shaft is in the shape of T, a stepped hole matched with the sliding shaft is arranged on the tool body, and the sliding shaft is sleeved in the stepped hole.

4. The cylinder welding circumferential angle positioning tool according to claim 3, characterized in that, The sliding shaft reset mechanism is a spring, the spring is sleeved in the stepped hole, and a plug is arranged at the rear end of the stepped hole to block the rear end of the stepped hole.

5. The cylinder welding circumference angle positioning tool according to claim 4, characterized in that, An annular boss coaxial with the stepped hole is arranged at the front of the tool body.

6. The cylinder welding circumference angle positioning tool according to claim 5, characterized in that, The cylinder support block includes a positioning plate and a ∩-shaped plate, the ∩-shaped plate is vertically fixed on the positioning plate along the axial direction of the positioning plate, and the arc surface of the ∩-shaped plate is coaxially distributed with the positioning plate, the outer diameter of the arc surface of the ∩-shaped plate is equal to the outer diameter of the positioning plate, the outer diameter of the positioning plate is equal to the inner diameter of the corresponding cylinder, the outer diameter of the positioning plate is smaller than the outer diameter of the large cylindrical body of the tool body, and the directional slide is arranged on the arc segment of the ∩-shaped plate.

7. The cylinder welding circumference angle positioning tool according to claim 6, characterized in that, in A first through hole is arranged on the annular boss along the radial direction thereof, a second through hole corresponding to the first through hole is arranged on the positioning plate, and an internally threaded cylindrical pin is sleeved in the first through hole and the second through hole.

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