CN221019360U - Floor drain welding equipment - Google Patents

Abstract

The utility model discloses floor drain welding equipment, which comprises a machine base and a placing table, wherein the machine base is provided with a lifting table capable of lifting up and down, the lifting table is provided with a penetrating through hole penetrating up and down, the placing table is positioned in the penetrating through hole, the top surface of the placing table is higher than that of the lifting table, a clamping alignment mechanism is arranged on the top surface of the lifting table and is provided with four clamping pieces which are used for clamping four side surfaces of a floor drain shell on the placing table respectively in one-to-one alignment mode.

Description

Floor drain welding equipment

Technical Field

The utility model relates to the technical field of floor drain machining, in particular to floor drain welding equipment.

Background

The existing floor drain comprises a floor drain shell and a floor drain surface cover which is covered on the floor drain shell, wherein the floor drain shell consists of a floor drain base and a floor drain frame which is horizontally arranged on the floor drain base, and the floor drain base and the floor drain frame are respectively processed, so that the floor drain base and the floor drain frame are required to be welded during processing of the floor drain.

The traditional floor drain welding mode is that a floor drain frame is placed on a floor drain base, then a worker carries out manual welding on the floor drain frame and the floor drain base, the manual welding mode is low in efficiency and easy to cold joint or cold joint, and the welding position is not attractive. Along with the step of industrialization accelerates, more and more technologies begin to advance towards the direction of automation, the welding of floor drain also begins to adopt automation, a floor drain welding equipment that appears on the market, it includes the frame and installs the platform of placing on the frame, place the platform and hang in the top surface top of frame through the supporting seat, place the platform rotation and install on the supporting seat, place the platform and be a square block, the top surface of frame lies in and places the platform and be equipped with the clamping piece that can place the translation of platform direction outward, the clamping piece has the preceding clamping piece of counterpointing with the preceding side of square block and the right side rear portion right angle side relative position's of square block contained angle clamping piece, and install the lower briquetting that can go up and down and rotate circumferentially on the frame, lower briquetting is in place the platform directly over, install the welding platform of following the rear side translation of placing the platform on the frame, place the floor drain base on the top surface of floor drain base again, afterwards preceding clamping piece, left side clamping piece and contained angle clamping piece are all placed to the left side clamping piece and clamping piece, the clamping piece is welded with the floor drain frame, the floor drain frame is welded together with the left side clamping piece and the floor drain frame, the welding is accomplished to the clamping piece and the floor drain frame of side, the floor drain frame is welded. However, before welding, the floor drain shell is placed on the placing table and then is clamped by the clamping pieces at two side edges and one corner of the floor drain shell, four sides of the floor drain shell cannot be corrected, so that the floor drain frame cannot be completely corrected when the floor drain frame and the floor drain base are placed in a deviation mode, partial deviation still exists, the welding precision is slightly poor, and furthermore, the pressing block is rotated and slightly deflects in the pressing process, so that the pressing block and the floor drain frame cannot be completely matched and attached, and the floor drain frame cannot be completely matched with the floor drain base when the pressing block rotates, so that the welding precision is affected.

In view of the above, the present inventors have conducted intensive studies on the above problems, and have resulted from the present invention.

Disclosure of utility model

The utility model aims to provide floor drain welding equipment which can accurately align a floor drain shell before welding, ensure that a floor drain frame and a floor drain base cannot rotate relatively during welding and has high welding precision.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The floor drain welding equipment comprises a machine base and a placing table, wherein the placing table is rotatably arranged on the top surface of the machine base, a clamping alignment mechanism which can translate towards the direction of the placing table and clamp a floor drain shell on the placing table is arranged outside the placing table, a lower pressing block which can rotate and lift and a lifting driving mechanism which drives the lower pressing block to lift and rotate are arranged above the placing table, and the lower pressing block is positioned right above the placing table; the lifting table capable of lifting up and down is arranged on the machine base, a penetrating through hole penetrating up and down is formed in the lifting table, the placing table is located in the penetrating through hole, the top surface of the placing table is higher than that of the lifting table, the clamping alignment mechanism is arranged on the top surface of the lifting table and is provided with four clamping pieces which are respectively clamped on four side surfaces of a floor drain shell on the placing table in a one-to-one alignment mode, the four clamping pieces are arranged on the lifting table in a mode of translating towards the placing table, and the lifting driving mechanism is provided with a pressing mechanism capable of lifting up and down and pressing on the top surface of the pressing block.

The machine base is of a strip-shaped structure, the machine base is provided with a driving motor, the output end of the driving motor extends upwards out of the top surface of the machine base, and the placing table is fixed on the output end of the driving motor.

The upper cover plate is a square cover body, the top surface of the upper cover plate is concave and provided with a placing groove for stacking the floor drain frame and the upper end part of the floor drain base on, and four side surfaces of the upper cover plate are provided with extending ports which are communicated with the placing groove and are used for extending partial components of the clamping pieces into the inside, corresponding to the clamping pieces.

The lifting table is a plate body, a square through hole is formed in the lifting table, the square through hole is the through hole, the length direction of the lifting table is identical to the length direction of the machine base, and lifting cylinders for driving the lifting table to lift are respectively arranged below the end parts of the top surface of the machine base, which are positioned at the two ends of the lifting table in the length direction.

The lifting platform is provided with a lower transverse plate, side vertical plates and an upper transverse plate, wherein the lower transverse plate is a strip-shaped plate body extending along the length direction of the machine base, the square through holes are formed in the lower transverse plate, the clamping pieces are installed on the lower transverse plate, four clamping pieces are evenly distributed around the square through holes at intervals along the circumferential direction, two side vertical plates are arranged on the top surfaces of the end parts of the lower transverse plate, the two side vertical plates are relatively erected on the top surfaces of the two end parts of the lower transverse plate, the top surface of each side vertical plate is provided with the upper transverse plate horizontally arranged along the length direction of the lower transverse plate, the first end of the upper transverse plate is locked with the side vertical plate, the second end of the upper transverse plate extends away from the direction of the lower transverse plate, and the lifting cylinder is located below the second end of the upper transverse plate and fixedly connected with the second end of the upper transverse plate.

The clamping piece is provided with a clamping rod which is horizontally arranged along the translation direction of the clamping piece, a pushing cylinder which is horizontally arranged along the horizontal direction of the clamping rod is arranged outside the square through hole on the top surface of the lower transverse plate, the first end of the clamping rod is connected with the output end of the pushing cylinder, the second end of the clamping rod faces the extending port, and the clamping rod falls into the extending port range.

The top surface of above-mentioned frame is established two pole settings that set up relatively, and two pole settings set up relatively along the length direction of frame, even be equipped with the installation diaphragm between the two pole settings, and the top surface of frame is located between the two stand and erects the direction stand that passes the installation diaphragm, and above-mentioned placing table is provided with two, is formed with two between two pole settings and the direction stand and places the space, all is equipped with above-mentioned placing table in each placing space.

Two upper lifting cylinders which are arranged at intervals along the length direction of the machine base are vertically arranged in each placing space on the bottom surface of the mounting transverse plate, the output ends of the two upper lifting cylinders are upwards arranged and penetrate through the mounting transverse plate, a mounting shaft is arranged between the two upper lifting cylinders, and the mounting shaft and the two upper lifting cylinders form the lifting driving mechanism; the installation axle has dwang and lower cover body, and the dwang erects the setting, and the cover body cover is tightly outside the lower extreme of dwang down, and the lower tip of dwang stretches out down the cover body, and lower briquetting lock is on the lower extreme tip of dwang, installs the lower cylinder of erectting the setting on the lateral wall of lower cover body, and the output of lower cylinder sets up down, lock the compact heap in the lower briquetting top on the output of lower cylinder, above-mentioned lower cylinder and compact heap constitute compressing mechanism, the upper end overcoat of dwang is equipped with the installation sleeve, and the installation sleeve erects and passes the installation diaphragm and lock on the installation diaphragm, and the upper end of above-mentioned dwang is installed on the installation sleeve through the installation bearing rotation, and the upper end of dwang upwards stretches out outside the installation sleeve, the upper end overcoat of dwang has the upper link plate that extends along the length direction of frame, the output of two upper lift cylinders corresponds respectively with the both ends fixed connection of upper link plate.

The upper connecting plate is concavely provided with a concave arc opening penetrating up and down towards one end part of the guide upright post, and a local part of the guide upright post is embedded in the concave arc opening.

According to the floor drain welding equipment, when the floor drain welding equipment is applied, the floor drain shell is placed on the placing table, the pressing mechanism descends and presses the lower pressing block, the lifting table ascends, the placing table is located in the range of the through hole, four clamping pieces clamp and correct the four side faces of the floor drain shell on the placing table one by one, at the moment, the lifting driving mechanism drives the lower pressing block to descend and press the floor drain shell, the four clamping pieces reset, the lifting table descends and resets, the pressing mechanism ascends and loses the compression on the lower pressing block, the floor drain shell is welded by using the welding machine, the driving motor drives the placing table to rotate, and the lower pressing block synchronously rotates along with the placing table.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is another perspective view of the present utility model;

Fig. 3 is a perspective view of the placement stage.

Detailed Description

The floor drain welding equipment comprises a machine base 1 and a placing table 2, wherein the machine base 1 is of a strip-shaped structure, the placing table 2 is rotatably arranged on the top surface of the machine base 1, specifically, the machine base 1 is provided with a driving motor 11, the output end of the driving motor 11 extends upwards out of the top surface of the machine base 1, and the placing table 2 is fixed on the output end of the driving motor 11; the machine base 1 is positioned outside the placing table 2 and is provided with a clamping alignment mechanism which can translate towards the direction of the placing table 2 and clamp the floor drain shell 100 on the placing table 2, the machine base 1 is positioned above the placing table 2 and is provided with a lower pressing block 3 which can rotate and lift and a lifting driving mechanism which drives the lower pressing block 3 to lift and rotate up and down, and the lower pressing block 3 is positioned right above the placing table 2.

The lifting table 4 capable of lifting up and down is installed on the machine base 1, a through hole 200 penetrating up and down is formed in the lifting table 4, the placing table 2 is located in the through hole 200, the top surface of the placing table 2 is higher than the top surface of the lifting table 4, specifically, the lifting table 4 is a plate body, a square through hole is formed in the lifting table 4, the square through hole is the through hole 200, the length direction of the lifting table 4 is identical to the length direction of the machine base 1, and lifting cylinders 12 for driving the lifting table 4 to lift are respectively installed below two end parts of the top surface of the machine base 1, which are located in the length direction of the lifting table 4.

The clamping alignment mechanism is arranged on the top surface of the lifting table 4, the clamping alignment mechanism is provided with four clamping pieces which are respectively used for clamping four side surfaces of the floor drain shell 100 on the placing table in a one-to-one alignment manner, the four clamping pieces are arranged on the lifting table 4 in a manner of translating towards the placing table 2, the placing table 2 is provided with a lower chassis 21 and an upper seat body 22, the lower chassis 21 is tightly sleeved outside the end part of the output end of the driving motor 11, the upper seat body 21 is locked on the top surface of the lower chassis 21, the upper seat body 21 is provided with a bowl-shaped seat body 211 and an upper cover plate 212 positioned on the top surface of the bowl-shaped seat body, the bowl-shaped seat body 211 is provided with a bowl-shaped groove 300 which is matched with the lower end part of the floor drain base in a concave manner, so that the floor drain base is not easy to deviate on the upper seat body, the upper cover plate 212 is a square cover body, the top surface of the upper cover plate 212 is provided with a placing groove 400 which is used for stacking the floor drain frame and the upper end part of the floor drain base on the upper seat, the four side surfaces of the upper cover plate 212 are correspondingly provided with a part which is communicated with the placing groove 400 and is used for stretching into the part of the clamping piece in the upper part of the clamping piece, and the clamping piece can directly stretch into the clamping frame 500; each clamping piece is provided with a clamping rod 51 which is horizontally arranged along the translation direction of the clamping piece, and pushing air cylinders 52 which are horizontally arranged along the horizontal direction of the clamping rods 51 are correspondingly arranged at the positions, corresponding to the clamping rods 51, of the positions, outside the square through openings, of the top surface of the lifting table 4.

The lifting driving mechanism is provided with a pressing mechanism which can lift up and down and press the top surface of the lower pressing block 3, specifically, the top surface of the machine base 1 is provided with two upright rods 13 which are oppositely arranged, the two upright rods 13 are oppositely arranged along the length direction of the machine base 1, a mounting transverse plate 131 is connected between the two upright rods 13, the top surface of the machine base 1 is positioned between the two upright rods 13, a guide upright post 14 which passes through the mounting transverse plate 131 is vertically arranged, two upright rods 13 and the guide upright posts 14 are sleeved with limiting sleeves (not shown in the figure) which are inherently positioned below the mounting transverse plate 131, so that the position of the mounting transverse plate 131 can be stable, two placing tables 2 are arranged, two placing spaces are formed between the two upright rods 13 and the guide upright posts 14, each placing space is internally provided with a placing table 2, the two placing tables 2 are arranged so that the novel lifting driving mechanism can simultaneously weld two groups of frame leakage shells 100, two lifting cylinders 15 which are arranged at intervals along the length direction of the machine base 1 are arranged in each placing space, the bottom surface of the mounting transverse plate 131 is positioned between the two lifting cylinders 15 and the lifting mechanism which are upwards arranged, and the lifting mechanism is arranged between the two lifting cylinders 15 and the lifting mechanism which passes through the lifting shafts 6 arranged on the lifting driving mechanism; the installation shaft 6 is provided with a rotating rod 61 and a lower sleeve body 62, the rotating rod 61 is vertically arranged, the lower sleeve body 62 is tightly sleeved outside the lower end of the rotating rod 61, the lower end part of the rotating rod 61 extends out of the lower sleeve body 62, the lower pressing block 3 is locked on the lower end part of the rotating rod 61, the upper end of the rotating rod 61 is sleeved with an installation sleeve 611, the installation sleeve 611 vertically penetrates through the installation transverse plate 131 and is locked on the installation transverse plate 131, namely, the outer side wall of the installation sleeve 611 is convexly provided with a convex ring overlapped on the installation transverse plate 131, the convex ring is locked on the installation transverse plate, the upper end of the rotating rod 61 is rotatably installed on the installation sleeve 611 through an installation bearing (not shown in the figure), the upper end part of the rotating rod 61 extends out of the installation sleeve 611, the upper end of the rotating rod 61 is sleeved with an upper connecting plate 612 extending along the length direction of the machine base 1, the output ends of the two upper lifting cylinders 15 are fixedly connected with the two ends of the upper connecting plate 612 respectively, the two upper lifting cylinders 15 drive the upper connecting plate 612 to lift simultaneously, so that the upper connecting plate 612 and the rotating rod 61 lift more stably, an annular boss 621 is convexly arranged on the outer side wall of the lower sleeve body 62, a lower cylinder 600 with a downward output end is locked on the bottom surface of the annular boss 621, a compression block (not shown in the figure) above the lower compression block 3 is locked on the output end (namely a piston rod of the lower cylinder) of the lower cylinder 600, and the compression block and the lower cylinder form the compression mechanism.

According to the floor drain welding equipment, when the floor drain welding equipment is applied, a floor drain base is placed on a bowl-shaped base body 211, a floor drain frame is overlapped on the top surface of the floor drain base corresponding to a placing groove 400 on an upper cover plate 212, a lifting cylinder 12 is started, a lifting table 4 is driven by the lifting cylinder 12 to move upwards, a floor drain shell on the placing table 2 falls into a penetrating through port 200, each clamping rod 51 is opposite to an extending port 500, each pushing cylinder 52 is started, the pushing cylinders 52 drive the clamping rods 51 to translate towards the extending port 500, the clamping rods 51 penetrate through the extending port 500 to be in contact with the welding position of the floor drain shell, clamping rods are arranged outside four sides of the floor drain shell, when the clamping rods outside four sides of the floor drain shell translate towards the floor drain shell synchronously, the floor drain frame and the floor drain base can be aligned, a lower cylinder 600 is started, the lower cylinder drives the clamping blocks to move downwards to press down a pressing block 3, then the output ends of the two upper lifting cylinders 15 drive the upper connecting plates 612 to descend, the upper connecting plates 612 drive the rotating rods 61 to move downwards until the pressing block 3 to press the upper surface of the floor drain shell to the floor drain frame, and finally the floor drain base 2 is reset, and the floor drain shell is driven to move upwards, the floor drain frame is driven to rotate, and the floor drain frame is driven to move upwards, and the floor drain base 2 is welded, and the floor drain base is driven to be welded, and the floor drain frame is reset to be positioned and the floor drain base is driven to move and the floor drain 2 is in a position and can be welded. Compared with the prior art, the novel welding equipment adopts the clamping pieces outside four sides of the floor drain shell, so that four clamping pieces can be used for carrying out four-side correction on the floor drain frame and the floor drain base of the floor drain shell when being translated in the direction of the floor drain shell, four edges of the floor drain frame and four edges of the floor drain base are completely corresponding to each other, the welding precision is high, the problem that the welding precision is slightly poor due to the fact that the floor drain frame and the floor drain base cannot be completely overlapped and corrected only by the two sides and one corner of the floor drain shell 100 by the traditional welding equipment is avoided, the arrangement of the clamping pieces cannot influence the welding of a welding machine by lifting of a lifting table, and furthermore, when the pressing block 3 moves downwards, the pressing mechanism presses the pressing block, the pressing block cannot rotate, so that the pressing block 3 can not rotate when being contacted with the floor drain shell in the pressing process, and the four sides of the pressing block 3 can be overlapped with the four sides of the floor drain frame, and the welding precision is ensured.

In the present invention, the lifting platform 4 has a lower transverse plate 41, side vertical plates 42 and an upper transverse plate 43, the lower transverse plate 41 is a strip-shaped plate body extending along the length direction of the machine base 1, square through openings are formed in the lower transverse plate 41, clamping pieces are mounted on the lower transverse plate 41, four clamping pieces are uniformly distributed around the square through openings at intervals along the circumferential direction, two side vertical plates 42 are arranged on top surfaces of two end parts of the lower transverse plate 41, the two side vertical plates 42 are relatively erected on top surfaces of two end parts of the lower transverse plate 41, the top surface of each side vertical plate is provided with an upper transverse plate 43 horizontally arranged along the length direction of the lower transverse plate 41, a first end of the upper transverse plate 43 and the side vertical plate 42 are locked together, a second end of the upper transverse plate 43 extends away from the direction of the lower transverse plate 41, and the lifting cylinder 12 is positioned below the second end of the upper transverse plate 43 and fixedly connected with the second end of the upper transverse plate 43; the height of the whole lifting platform at the clamping piece is not too high through the arrangement of the side vertical plates, the lower transverse plates and the upper transverse plates, so that the height of the placing platform is not required to be set to be higher, and the volume of the whole equipment is not too large.

In this novel, go up even board 612 and be equipped with concave arc mouth (not shown in the figure) that runs through from top to bottom towards the one end tip of direction stand 14 concave, and the local position of direction stand 14 inlays and puts in concave arc mouth, and when using, the concave arc mouth that utilizes even board 612 cooperatees with direction stand 14, can play the guide effect to the lift of connecting rod 61 for the lift of connecting rod 61 is more steady.

In the present invention, preferably, each clamping member has two clamping rods 51 arranged at intervals transversely, that is, the whole lifting platform has eight clamping rods 51, and in the same way, the number of the extending openings 500 on the upper cover plate is eight correspondingly, the eight clamping rods are circumferentially distributed along the lifting platform, and the lifting platform is provided with the pushing air cylinders 52 corresponding to each clamping rod; when the floor drain is used, the eight clamping rods 51 are arranged, so that each side edge of the floor drain shell is provided with two clamping rods to push, and the floor drain frame and the floor drain base are more accurately corrected.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as falling outside the scope of the present utility model.

Claims (9)

1. The floor drain welding equipment comprises a machine base and a placing table, wherein the placing table is rotatably arranged on the top surface of the machine base, a clamping alignment mechanism which can translate towards the direction of the placing table and clamp a floor drain shell on the placing table is arranged outside the placing table, a lower pressing block which can rotate and lift and a lifting driving mechanism which drives the lower pressing block to lift and rotate are arranged above the placing table, and the lower pressing block is positioned right above the placing table; the method is characterized in that: the lifting table capable of lifting up and down is arranged on the machine base, a penetrating through hole penetrating up and down is formed in the lifting table, the placing table is located in the penetrating through hole, the top surface of the placing table is higher than that of the lifting table, the clamping alignment mechanism is arranged on the top surface of the lifting table and is provided with four clamping pieces which are respectively clamped on four side surfaces of a floor drain shell on the placing table in a one-to-one alignment mode, the four clamping pieces are arranged on the lifting table in a mode of translating towards the placing table, and the lifting driving mechanism is provided with a pressing mechanism capable of lifting up and down and pressing on the top surface of the pressing block.

2. Floor drain welding device according to claim 1, characterized in that: the machine base is of a strip-shaped structure, the machine base is provided with a driving motor, the output end of the driving motor extends upwards out of the top surface of the machine base, and the placing table is fixed on the output end of the driving motor.

3. Floor drain welding device according to claim 2, characterized in that: the upper cover plate is a square cover body, the top surface of the upper cover plate is concave and provided with a placing groove for stacking the floor drain frame and the upper end part of the floor drain base on, and four side surfaces of the upper cover plate are provided with extending ports which are communicated with the placing groove and are used for extending partial components of the clamping pieces into the inside, corresponding to the clamping pieces.

4. A floor drain welding apparatus according to claim 3, wherein: the lifting table is a plate body, a square through hole is formed in the lifting table, the square through hole is the through hole, the length direction of the lifting table is identical to the length direction of the machine base, and lifting cylinders for driving the lifting table to lift are respectively arranged below the end parts of the top surface of the machine base, which are positioned at the two ends of the lifting table in the length direction.

5. Floor drain welding device according to claim 4, characterized in that: the lifting platform is provided with a lower transverse plate, side vertical plates and an upper transverse plate, wherein the lower transverse plate is a strip-shaped plate body extending along the length direction of the machine base, the square through holes are formed in the lower transverse plate, the clamping pieces are installed on the lower transverse plate, four clamping pieces are evenly distributed around the square through holes at intervals along the circumferential direction, two side vertical plates are arranged on the top surfaces of the end parts of the lower transverse plate, the two side vertical plates are relatively erected on the top surfaces of the two end parts of the lower transverse plate, the top surface of each side vertical plate is provided with the upper transverse plate horizontally arranged along the length direction of the lower transverse plate, the first end of the upper transverse plate is locked with the side vertical plate, the second end of the upper transverse plate extends away from the direction of the lower transverse plate, and the lifting cylinder is located below the second end of the upper transverse plate and fixedly connected with the second end of the upper transverse plate.

6. Floor drain welding device according to claim 5, characterized in that: the clamping piece is provided with a clamping rod which is horizontally arranged along the translation direction of the clamping piece, a pushing cylinder which is horizontally arranged along the horizontal direction of the clamping rod is arranged outside the square through hole on the top surface of the lower transverse plate, the first end of the clamping rod is connected with the output end of the pushing cylinder, the second end of the clamping rod faces the extending port, and the clamping rod falls into the extending port range.

7. Floor drain welding device according to claim 1, characterized in that: the top surface of above-mentioned frame is established two pole settings that set up relatively, and two pole settings set up relatively along the length direction of frame, even be equipped with the installation diaphragm between the two pole settings, and the top surface of frame is located between the two stand and erects the direction stand that passes the installation diaphragm, and above-mentioned placing table is provided with two, is formed with two between two pole settings and the direction stand and places the space, all is equipped with above-mentioned placing table in each placing space.

8. Floor drain welding device according to claim 7, characterized in that: two upper lifting cylinders which are arranged at intervals along the length direction of the machine base are vertically arranged in each placing space on the bottom surface of the mounting transverse plate, the output ends of the two upper lifting cylinders are upwards arranged and penetrate through the mounting transverse plate, a mounting shaft is arranged between the two upper lifting cylinders, and the mounting shaft and the two upper lifting cylinders form the lifting driving mechanism; the installation axle has dwang and lower cover body, and the dwang erects the setting, and the cover body cover is tightly outside the lower extreme of dwang down, and the lower tip of dwang stretches out down the cover body, and lower briquetting lock is on the lower extreme tip of dwang, installs the lower cylinder of erectting the setting on the lateral wall of lower cover body, and the output of lower cylinder sets up down, lock the compact heap in the lower briquetting top on the output of lower cylinder, above-mentioned lower cylinder and compact heap constitute compressing mechanism, the upper end overcoat of dwang is equipped with the installation sleeve, and the installation sleeve erects and passes the installation diaphragm and lock on the installation diaphragm, and the upper end of above-mentioned dwang is installed on the installation sleeve through the installation bearing rotation, and the upper end of dwang upwards stretches out outside the installation sleeve, the upper end overcoat of dwang has the upper link plate that extends along the length direction of frame, the output of two upper lift cylinders corresponds respectively with the both ends fixed connection of upper link plate.

9. Floor drain welding device according to claim 8, characterized in that: the upper connecting plate is concavely provided with a concave arc opening penetrating up and down towards one end part of the guide upright post, and a local part of the guide upright post is embedded in the concave arc opening.