CN111168560B

CN111168560B - Honing head capable of locking oilstone fast

Info

Publication number: CN111168560B
Application number: CN202010037821.8A
Authority: CN
Inventors: 吴佳慧
Original assignee: Xinchang Jifu Machinery Co ltd
Current assignee: Donggang Zhike Industrial Park Co ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-11-27
Anticipated expiration: 2040-01-14
Also published as: CN112223103A; CN111168560A

Abstract

The invention relates to the related technical field of honing processing, in particular to a honing head for quickly locking oilstone, which comprises a shell, wherein a reciprocating rod is slidably connected in the shell, an inner reciprocating rod is slidably connected in the reciprocating rod, a locking connecting rod is slidably connected in a sliding groove, a third spring is welded on the surface of the locking connecting rod, a fixing plate is welded on the surface of an adjusting plate, a locking rod is welded on the surface of the fixing plate, an inner pressure table is extruded on the surface of an inner oilstone seat, the oilstone seat and the inner oilstone seat are slidably connected in the shell, and the honing head has the advantages that: when the oilstone connected with the oilstone seat is worn and cannot be used in the machining process, the reciprocating rod is upwards adjusted and the inner reciprocating rod is downwards adjusted, the inner pressing table extrudes the inner oilstone seat and enables the oilstone on the surface of the inner oilstone seat to slide towards the outer end, and the oilstone connected with the surface of the inner oilstone seat can be used for honing, so that the machining gap is reduced, the honing efficiency is improved, and the honing machine is suitable for popularization.

Description

Honing head capable of locking oilstone fast

Technical Field

The invention relates to the related technical field of honing processing, in particular to a honing head capable of quickly locking oilstones.

Background

Honing is the finishing processing of a finish processing surface by using oilstone (also called honing stick) inlaid on a honing head, the contact area between the honing and the hole surface is large, the processing efficiency is high, under certain conditions, a plane can be processed, the size precision of the honed hole is IT 7-4 grade, the size precision of the honed hole is IT 7-4 grade, the surface roughness can reach Ra0.32-0.04 micron, the size of honing allowance depends on the hole diameter and the workpiece material, the honing head is a relatively mature honing workpiece, but the general honing head still has the following defects in the practical use:

1. in the honing process of the honing head, the interior of the honing head is easy to vibrate due to the action of friction force, and the stability of the interior of the honing head is poor, so that the interior of the honing head is greatly abraded, the service quality and the service life of the honing head are influenced, and the precision and the efficiency of honing are reduced;

2. the oilstone is generally fixed on the surface of the oilstone seat in a welding or gluing mode during installation, the operation is complex, the oilstone is not convenient to lock and fix on the surface of the oilstone seat quickly, the honing processing efficiency is affected, meanwhile, the oilstone and the oilstone seat are installed in an integrated mode, when the oilstone cannot be used due to serious abrasion, the oilstone and the oilstone seat need to be replaced integrally, the use cost is improved, and the use effect is poor;

3. when honing, the oilstone generates large friction with the surface of a workpiece for a long time, the abraded oilstone needs to be replaced after being used for a period of time, the honing process needs to be stopped at the moment, the oilstone still needs to be replaced when the honing process is close to the end, a locking mounting structure of the standby oilstone is not arranged, the machining gap is large, and the honing process efficiency is influenced.

Disclosure of Invention

The invention aims to provide a honing head capable of quickly locking oilstones so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the honing head capable of quickly locking oilstones comprises a shell, wherein a reciprocating rod is slidably connected inside the shell, an inner reciprocating rod is slidably connected inside the reciprocating rod, an extrusion plate is welded on the surface of the reciprocating rod and the surface of the inner reciprocating rod, a first spring is welded on the surface of the extrusion plate, the first spring is welded on the inner wall of a connecting sleeve, the first spring is welded on the surface of the positioning pressure plate, the positioning pressure plate is screwed on the inner wall of the shell, an inner pressure table is welded on the surface of the inner reciprocating rod, a limiting plate is welded on the surface of the inner pressure table, an outer pressure sleeve is welded on the surface of the reciprocating rod, an outer pressure sleeve is slidably connected in the outer pressure sleeve, the surface of the oilstones is welded with positioning plates, positioning chutes are arranged inside the oilstones, butt grooves are formed inside the oil stones, and locking sleeves are butt-jointed inside the butt-joint grooves, the welding of lock sleeve inner wall has the second spring, second spring skin weld has the regulating plate, the regulating plate extrusion is on the connecting plate surface, connecting plate skin weld has the locking connecting rod, is equipped with the spout in the lock sleeve, the sliding connection of locking connecting rod is in the spout, and locking connecting rod skin weld has the third spring, the third spring welding is equipped with the locking groove in the lock sleeve inner wall, the oilstone, and the third spring dock is at the locking inslot, and the inside locating hole that is equipped with of locking connecting rod, regulating plate skin weld have the fixed plate, fixed plate skin weld has the check lock lever, the check lock lever dock in the locating hole, including the extrusion of interior pressure platform oilstone seat surface, oilstone seat and interior oilstone seat sliding connection are in the.

Preferably, the extrusion plate is of a disc structure, the connecting sleeve is of a circular frame structure, the inner reciprocating rod is welded on the surface of the horizontal part of the connecting sleeve, the connecting sleeve is slidably connected in the reciprocating rod, the connecting sleeve is extruded on the surface of the positioning pressing plate, and the reciprocating rod and the inner reciprocating rod are slidably connected in the positioning pressing plate.

Preferably, press the platform in and be equipped with two sets ofly, press the platform in and constitute by disc and round platform, press the lower surface of platform including the welding of the big side surface of round platform area, the limiting plate is provided with the multiunit, and the multiunit limiting plate welding presses the upper surface outside of bench disc in the lower extreme, and multiunit limiting plate sets up to the outer end slope, oilstone seat surface including the inclined plane extrusion of round platform.

Preferably, the inside outer end of outer pressure sleeve is equipped with "concave" groove, "concave" groove salient sets up to the outer end slope, "concave" groove lower extreme is provided with isosceles trapezoid piece, the inboard of oilstone seat is provided with assorted isosceles trapezoid piece and "concave" groove, the extrusion of isosceles trapezoid piece is on the oilstone seat and is sheathe in the inner wall in "concave" groove to the outer pressure, oilstone seat skin weld has link block, link block skin weld has the fourth spring, the fourth spring welding is at casing outside inner wall, link block sliding joint is in the casing.

Preferably, the regulating plate comprises rectangular block and ring, and the ring welding is on rectangular block outside surface, and the connecting plate comprises trapezoidal plate and rectangular plate, and trapezoidal plate welding is on rectangular plate inside surface, and the rectangular block extrusion is on the inclined plane of trapezoidal plate, and the locking connecting rod is "L" shape structure, and the third spring welding is at the vertical part outside surface of locking connecting rod and lock sleeve outside inner wall.

Preferably, the locating hole sets up inside the horizontal part of locking connecting rod, and locking connecting rod horizontal part dock in the locking groove, and the fixed plate welds the rectangular block both sides surface on the regulating plate, and the check lock lever is the round bar structure, and the check lock lever passes through the inside of oilstone butt joint at the locating hole.

Preferably, the oilstone seat and the inner oilstone seat are provided with multiple groups, the multiple groups of oilstone seats and the inner oilstone seats are arranged in a staggered mode, a group of oilstones are connected to the outer side surfaces of each group of oilstone seat and the inner oilstone seat in a sliding mode, a positioning sliding groove is formed in each oilstone seat and the inner oilstone seat, a positioning sliding block is welded to the inner wall of the inner pressing platform of the shell, and the positioning sliding block is connected to the inside of the positioning sliding groove in a sliding mode.

Compared with the prior art, the invention has the beneficial effects that:

1. when in honing, the reciprocating rod and the inner reciprocating rod are driven to move downwards and are honed through the oilstone, and the extrusion plate is extruded on the surface of the first spring, so that the stability of the reciprocating rod and the inner reciprocating rod when in use is ensured due to the elastic action of the first spring, the abrasion of the internal structure of the honing head is reduced, and the precision and the efficiency of honing are further ensured;

2. when the oilstone is installed, the adjusting plate is pulled outwards to be separated from the connecting plate, the locking connecting rod slides inwards, the oilstone slides into the oilstone seat from the side end to the corresponding position and the adjusting plate is loosened, the second spring resets to enable the adjusting plate to extrude the connecting plate, the locking connecting rod is in butt joint in the locking groove, and meanwhile the locking rod is in butt joint in the positioning hole, so that locking installation of the oilstone is realized, the structure is simple, and the oilstone is convenient to install, detach and take;

3. when the oilstone connected with the oilstone seat is worn and cannot be used in the machining process, the reciprocating rod is upwards adjusted and the inner reciprocating rod is downwards adjusted, the inner pressing table extrudes the inner oilstone seat and enables the oilstone on the surface of the inner oilstone seat to slide towards the outer end, and the oilstone connected with the surface of the inner oilstone seat can be used for honing, so that the machining gap is reduced, the honing efficiency is improved, and the honing machine is suitable for popularization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the inner reciprocating rod and the inner pressing table according to the present invention;

FIG. 3 is a schematic view of the connection structure of the oilstone seat and the oilstone of the invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

FIG. 5 is a schematic view of the connection structure of the locking sleeve and the locking rod of the present invention;

FIG. 6 is a schematic view of the connection structure of the oilstone base and the inner oilstone base.

In the figure: the device comprises a shell 1, a reciprocating rod 2, an inner reciprocating rod 3, an extrusion plate 4, a first spring 5, a connecting sleeve 6, a positioning pressing plate 7, an inner pressing table 8, a limiting plate 9, an outer pressing sleeve 10, an oilstone seat 11, an oilstone 12, a positioning plate 13, a positioning chute 14, a butt joint groove 15, a locking sleeve 16, a second spring 17, an adjusting plate 18, a connecting plate 19, a locking connecting rod 20, a chute 21, a third spring 22, a locking groove 23, a positioning hole 24, a fixing plate 25, a locking rod 26, an inner oilstone seat 27, a positioning slide block 28 and a positioning chute 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a honing head for quickly locking oilstone comprises a shell 1, wherein a reciprocating rod 2 is connected inside the shell 1 in a sliding manner, an inner reciprocating rod 3 is connected inside the reciprocating rod 2 in a sliding manner, an extrusion plate 4 is welded on the surfaces of the reciprocating rod 2 and the inner reciprocating rod 3, a first spring 5 is welded on the surface of the extrusion plate 4, the first spring 5 is welded on the inner wall of a connecting sleeve 6, the first spring 5 is welded on the surface of a positioning pressing plate 7, the positioning pressing plate 7 is in threaded connection with the inner wall of the shell 1, the extrusion plate 4 is in a disc structure, the connecting sleeve 6 is in a circular frame structure, the inner reciprocating rod 3 is welded on the surface of the horizontal part of the connecting sleeve 6, the connecting sleeve 6 is connected inside the reciprocating rod 2 in a sliding manner, the connecting sleeve 6 is extruded on the surface of the positioning pressing plate 7, the reciprocating rod 2 and the inner reciprocating rod 3 are connected inside the positioning pressing plate 7 in a sliding manner, in the honing process, the, the stability of the interior of the honing head is ensured, the abrasion is reduced, and the honing precision and efficiency are further ensured;

referring to fig. 1 and 2, an inner pressing table 8 is welded on the surface of an inner reciprocating rod 3, limiting plates 9 are welded on the surface of the inner pressing table 8, two groups of inner pressing tables 8 are arranged, each inner pressing table 8 is composed of a disc and a circular truncated cone, one side surface with a large circular truncated cone area is welded on the lower surface of the inner pressing table 8, the limiting plates 9 are provided with multiple groups, the multiple groups of limiting plates 9 are welded on the outer side of the upper surface of the disc on the lower end inner pressing table 8, the multiple groups of limiting plates 9 are obliquely arranged towards the outer end, the oblique surface of the circular truncated cone extrudes on the surface of an inner oilstone seat 27, the inner reciprocating rod 3 is adjusted towards the lower end to enable the inner pressing table 8 to extrude on the surface of the inner oilstone seat 27;

referring to fig. 1, an outer pressing sleeve 10 is welded on the surface of a reciprocating rod 2, an inner pressing table 8 is connected in the outer pressing sleeve 10 in a sliding mode, the outer pressing sleeve 10 is extruded on the surface of an oilstone seat 11, a concave groove is formed in the outer end inside the outer pressing sleeve 10, the protruding part of the concave groove is arranged in an inclined mode towards the outer end, an isosceles trapezoid block is arranged at the lower end of the concave groove, the inner side of the oilstone seat 11 is provided with a matched isosceles trapezoid block and a matched concave groove, the isosceles trapezoid block on the oilstone seat 11 is extruded on the inner wall of the concave groove on the outer pressing sleeve 10, a connecting slide block is welded on the surface of the oilstone seat 11, a fourth spring is welded on the surface of the connecting slide block, the fourth spring is welded on the inner wall of the outer side of a shell 1 and is connected in the shell 1 in a sliding mode, the reciprocating rod 2 is adjusted downwards to enable the outer pressing sleeve 10 to extrude;

referring to fig. 3, 4 and 5, an oilstone 12 is slidably connected to the surface of an oilstone seat 11, a positioning plate 13 is welded to the surface of the oilstone 12, a positioning chute 14 is formed inside the oilstone seat 11, the positioning plate 13 is slidably connected to the inside of the positioning chute 14, a butt joint groove 15 is formed inside the oilstone 12, a locking sleeve 16 is abutted to the inside of the butt joint groove 15, a second spring 17 is welded to the inner wall of the locking sleeve 16, an adjusting plate 18 is welded to the surface of the second spring 17, the adjusting plate 18 is extruded to the surface of a connecting plate 19, a locking connecting rod 20 is welded to the surface of the connecting plate 19, a chute 21 is formed in the locking sleeve 16, the locking connecting rod 20 is slidably connected to the chute 21, a third spring 22 is welded to the surface of the locking connecting rod 20, the third spring 22 is welded to the inner wall of the locking sleeve 16, a locking groove 23 is formed in the oilstone 12, the connecting plate 19 is composed of a trapezoidal plate and a rectangular plate, the trapezoidal plate is welded on the inner side surface of the rectangular plate, the rectangular plate is extruded on the inclined surface of the trapezoidal plate, the locking connecting rod 20 is of an L-shaped structure, the third spring 22 is welded on the outer side surface of the vertical part of the locking connecting rod 20 and the inner wall of the outer side of the locking sleeve 16, the adjusting plate 18 is pulled outwards to be separated from the connecting plate 19, the adjusting plate 18 is loosened after the oilstone 12 slides into the surface of the oilstone seat 11, the locking connecting rod 20 is in butt joint in the locking groove 23, locking installation of the oilstone 12 is achieved;

referring to fig. 4 and 5, a positioning hole 24 is formed in the locking connecting rod 20, a fixing plate 25 is welded on the surface of the adjusting plate 18, a locking rod 26 is welded on the surface of the fixing plate 25, the locking rod 26 is in butt joint with the positioning hole 24, the positioning hole 24 is formed in the horizontal portion of the locking connecting rod 20, the horizontal portion of the locking connecting rod 20 is in butt joint with the locking groove 23, the fixing plate 25 is welded on the surfaces of two sides of a rectangular block on the adjusting plate 18, the locking rod 26 is in a round rod structure, the locking rod 26 is in butt joint with the positioning hole 24 through the oilstone 12, after the locking connecting rod 20 is in butt joint with the locking groove 23, the locking rod 26 is in butt joint with the positioning hole 24 through the oils;

referring to fig. 6, the inner pressing table 8 is extruded on the surface of the inner oilstone seat 27, the oilstone seat 11 and the inner oilstone seat 27 are slidably connected in the casing 1, multiple groups of oilstone seats 11 and the inner oilstone seat 27 are arranged, the multiple groups of oilstone seats 11 and the inner oilstone seats 27 are arranged in a staggered manner, a group of oilstones 12 are slidably connected on the outer side surfaces of each group of oilstone seats 11 and the inner oilstone seat 27, positioning chutes 29 are formed in the oilstone seats 11 and the inner oilstone seats 27, positioning sliders 28 are welded on the inner walls of the casing 1 and the inner pressing table 8, the positioning sliders 28 are slidably connected inside the positioning chutes 29, and after the oilstones 12 connected with the oilstone seats 11 are worn, the reciprocating rods 2 are returned upwards and the inner reciprocating rods 3 are adjusted downwards, so that the oilstones 12 connected with the inner oilstone seats 27 move outwards, and at this time, honing processing can be continued, and honing efficiency.

The working principle is as follows: before honing, the adjusting plate 18 is pulled to the outer end, the adjusting plate 18 moves outwards and causes the second spring 17 to stretch outwards, at the moment, the adjusting plate 18 is separated from the connecting plate 19, the third spring 22 is reset to stretch to cause the connecting plate 19 and the locking connecting rod 20 to move inwards, the oilstone 12 slides into the oilstone seat 11 from the side end to a corresponding position and releases the adjusting plate 18, the second spring 17 is reset to stretch to cause the adjusting plate 18 to be extruded on the surface of the connecting plate 19, the connecting plate 19 moves outwards and causes the locking connecting rod 20 to be butted in the locking groove 23, at the same time, the locking rod 26 is butted in the positioning hole 24 through the oilstone 12 to lock the oilstone 12, at the moment, the reciprocating rod 2 is driven to move downwards by a driving mechanism connected with the honing head, the reciprocating rod 2 drives the outer pressing sleeve 10 to be extruded on the surface of the oilstone seat 11, so that the oilstone 12 on the surface of the, honing processing is carried out through a plurality of groups of oilstones 12, the structure is simple, when the reciprocating rod 2 is adjusted, the extrusion plate 4 is extruded on the surface of the first spring 5, due to the elastic action of the first spring 5, the adjustment stability of the reciprocating rod 2 is ensured, the abrasion degree of the honing head in the use process is reduced, when the oilstones 12 on the surface of the oilstone seat 11 are seriously abraded and cannot be used in the use process, the reciprocating rod 2 is upwards adjusted to enable the outer pressing sleeve 10 to be separated from the oilstone seat 11, then the inner reciprocating rod 3 is downwards driven to enable the inner reciprocating rod to slide in the reciprocating rod 2, the inner pressing platform 8 is extruded on the surface of the inner oilstone seat 27, so that the oilstones 12 on the surface of the inner oilstone seat 27 move towards the outer end, honing processing is continuously carried out through the oilstones 12 on the surface of the inner oilstone seat 27, a standby processing structure is arranged, the honing processing efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a honing head of quick locking oilstone, includes casing (1), its characterized in that: the inner part of the shell (1) is slidably connected with a reciprocating rod (2), the inner part of the reciprocating rod (2) is slidably connected with an inner reciprocating rod (3), the surface of the reciprocating rod (2) is welded with an extrusion plate (4), the surface of the extrusion plate (4) is welded with a first spring (5), the first spring (5) is arranged inside a connecting sleeve (6), the first spring (5) is welded on the surface of a positioning pressing plate (7), the positioning pressing plate (7) is in threaded connection with the inner wall of the shell (1), the surface of the inner reciprocating rod (3) is welded with an inner pressure platform (8), the surface of the inner pressure platform (8) is welded with a limiting plate (9), the surface of the reciprocating rod (2) is welded with an outer pressure sleeve (10), the inner pressure platform (8) is slidably connected in the outer pressure sleeve (10), the outer pressure sleeve (10) is extruded on the surface of an oilstone seat (11), the surface of the oilstone seat (11) is slidably connected with an oilstone (12), and the surface positioning plate (13) of the, the inside of oilstone seat (11) is equipped with positioning chute (14), locating plate (13) sliding connection is inside positioning chute (14), and oilstone (12) is inside to be equipped with butt joint groove (15), butt joint groove (15) is inside to have lock sleeve (16) to butt joint, lock sleeve (16) inner wall welding has second spring (17), second spring (17) skin weld has regulating plate (18), regulating plate (18) extrusion is on connecting plate (19) surface, connecting plate (19) skin weld has locking connecting rod (20), is equipped with spout (21) in lock sleeve (16), locking connecting rod (20) sliding connection is in spout (21), and locking connecting rod (20) skin weld has third spring (22), third spring (22) welding is equipped with locking groove (23) in lock sleeve (16) inner wall, oilstone (12), and third spring (22) butt joint is in locking groove (23), locking connecting rod (20) inside is equipped with locating hole (24), and regulating plate (18) skin weld has fixed plate (25), fixed plate (25) skin weld has check lock lever (26), check lock lever (26) dock in locating hole (24), oilstone seat (27) surface including interior pressure platform (8) extrusion, oilstone seat (11) and interior oilstone seat (27) sliding joint are in casing (1).

2. The honing head for rapidly locking the whetstone according to claim 1, wherein: the extrusion plate (4) is of a disc structure, the connecting sleeve (6) is of a circular frame structure, the inner reciprocating rod (3) is welded on the surface of the horizontal part of the connecting sleeve (6), the connecting sleeve (6) is in sliding connection in the reciprocating rod (2), the connecting sleeve (6) is extruded on the surface of the positioning pressing plate (7), and the reciprocating rod (2) and the inner reciprocating rod (3) are in sliding connection inside the positioning pressing plate (7).

3. The honing head for rapidly locking the whetstone according to claim 1, wherein: interior pressure platform (8) are equipped with two sets ofly, and interior pressure platform (8) comprise disc and round platform, and the lower surface of interior pressure platform (8) is welded to the big side surface of round platform area, and limiting plate (9) are provided with the multiunit, and multiunit limiting plate (9) welding is in the lower extreme and is pressed the upper surface outside of platform (8) upper disc in, and multiunit limiting plate (9) set up to the outer end slope, oilstone seat (27) surface including the inclined plane extrusion of round platform.

4. The honing head for rapidly locking the whetstone according to claim 1, wherein: the outer pressure cover (10) inside outer end is equipped with "concave" groove, "concave" groove salient sets up to the outer end slope, "concave" groove lower extreme is provided with isosceles trapezoid piece, the inboard of oilstone seat (11) is provided with assorted isosceles trapezoid piece and "concave" groove, oilstone seat (11) are gone up to wait waist trapezoid piece extrusion and are being pressed the inner wall in "concave" groove on cover (10) outward, oilstone seat (11) skin weld has link block, link block skin weld has the fourth spring, the fourth spring welding is at casing (1) outside inner wall, link block slips in casing (1).

5. The honing head for rapidly locking the whetstone according to claim 1, wherein: regulating plate (18) comprise rectangle piece and ring, and the ring welding is on rectangle piece outside surface, and connecting plate (19) comprise trapezoidal plate and rectangular plate, and trapezoidal plate welding is on the rectangular plate inside surface, and the rectangular block extrusion is the inclined plane of trapezoidal plate, and locking connecting rod (20) are "L" shape structure, and third spring (22) welding is at locking connecting rod (20) vertical part outside surface and lock sleeve (16) outside inner wall.

6. The honing head for rapidly locking the whetstone according to claim 1, wherein: the positioning holes (24) are formed in the horizontal portion of the locking connecting rod (20), the horizontal portion of the locking connecting rod (20) is in butt joint with the locking groove (23), the fixing plate (25) is welded on the surfaces of the two sides of the rectangular block on the adjusting plate (18), the locking rod (26) is of a round rod structure, and the locking rod (26) is in butt joint with the inside of the positioning holes (24) through the oilstone (12).

7. The honing head for rapidly locking the whetstone according to claim 1, wherein: oilstone seat (11) all are provided with the multiunit with interior oilstone seat (27), multiunit oilstone seat (11) and interior oilstone seat (27) crisscross setting, and the equal sliding connection in the outside surface of every group oilstone seat (11) and interior oilstone seat (27) has a set of oilstone (12), is equipped with location spout (29) in oilstone seat (11) and interior oilstone seat (27), and casing (1) and interior pressure platform (8) inner wall welding have location slider (28), and location slider (28) sliding connection is inside location spout (29).