CN212600151U - Dry-type oil-free screw compressor assembly line - Google Patents

Abstract

The utility model relates to an assembly line of a dry-type oil-free screw compressor, which comprises a rotor assembly line, a shell assembly line and a transfer mechanism; the rotor assembly line is used for mounting the exhaust end of the compressor on the rotor; the shell assembly line is used for completing the assembly of the whole compressor, and the transfer mechanism is used for transferring the rotor provided with the exhaust end to the shell assembly line; the rotor assembly line comprises a first roller line body and a press-mounting machine, the shell assembly line comprises a second roller line body, and a shell cover plate end mounting station, a first shell overturning station, a first shell assembling rotor station, a second shell overturning station, a shell cover plate mounting station, a third shell overturning station and a gear box mounting station are sequentially arranged on the second roller line body according to the assembly process steps. The assembly line can effectively utilize auxiliary mechanical equipment to completely replace the movement, overturning, hoisting, press fitting and rotation of workpieces, reduces the manual operation and improves the working efficiency.

Description

Dry-type oil-free screw compressor assembly line

Technical Field

The utility model relates to a compressor production machinery technical field, specifically say, relate to a dry-type does not have oily screw compressor assembly line.

Background

The assembly of the existing dry-type oil-free screw compressor comprises the operations of carrying, press mounting, hoisting, overturning, installing and the like of parts. The whole process is complicated, and the manual part clamping and moving are required to be realized most of the time, because the dry-type oil-free screw compressor is large in size and heavy in weight, the labor intensity of assembly workers is high during batch installation, the requirement on the physical quality of the workers is high, the assembly efficiency is low, and because one person is responsible for the installation of the whole equipment, the product performance assembled by workers with different proficiency degrees can have great difference, and the products in the same batch are easy to have the condition of inconsistent performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design reasonable, can reduce workman intensity of labour, improve complete machine assembly efficiency, improve the assembly and produce the uniformity's of product performance dry-type oil-free screw compressor assembly line to give assembly method.

The utility model provides a technical scheme that above-mentioned problem adopted is: the assembly line for the dry type oil-free screw compressor is characterized in that: comprises a rotor assembly line, a shell assembly line and a transfer mechanism; the rotor assembly line is used for mounting the exhaust end of the compressor on the rotor; the shell assembly line is used for completing the assembly of the whole compressor, and the transfer mechanism is used for transferring the rotor provided with the exhaust end to the shell assembly line; the rotor assembly line includes a roll table line body and pressure equipment machine, be provided with the rotor frock on the roll table line body, the rotor frock has two and stops the station: an exhaust end mounting station and a station to be transferred; the rotor tool is used for positioning and placing a rotor, and can move on the first roller path line body or stay at an exhaust end mounting station and a station to be transferred; the press-mounting machine is arranged at one end of the first roller line body and is used for mounting a part on the exhaust end; the shell assembling line comprises a second roller line body, and a shell cover plate end part mounting station, a first shell overturning station, a first shell assembling rotor station, a second shell overturning station, a shell cover plate mounting station, a third shell overturning station and a gear box mounting station are sequentially arranged on the second roller line body according to the assembling process steps; a follower tooling plate is arranged on the second roller line body, moves on the second roller line body and sequentially stays at a position where each part is installed at the end of a shell cover plate, a first shell overturning position, a first shell assembling rotor position, a second shell overturning position, a shell cover plate installing position, a third shell overturning position and a gear box installing position; shell turnover devices are arranged at the first shell turnover station, the second shell turnover station and the third shell turnover station; the rotary jacking mechanisms are respectively arranged at a position where each part is arranged at the cover plate end of the shell, a position where the second shell is assembled with the rotor, a position where the cover plate is arranged on the shell and a position where the gear box is arranged, and are used for jacking the following tooling plate staying at the position upwards until the following tooling plate is separated from the second roller line body and enabling the following tooling plate to rotate; the shell tool is placed on the following tool plate staying at the second shell overturning station, the shell cover plate installing station and the third shell overturning station, and the shell tool is used for positioning the shell.

Preferably, similarly, a following tooling plate is also arranged on the first roller line body, the rotor tooling is arranged on the following tooling plate, and a rotary jacking mechanism is also arranged at the exhaust end mounting station; the rotor tool is in a cube shape and is provided with an accommodating cavity matched with the rotor in shape, and the rotor of the compressor is placed in the accommodating cavity.

Preferably, the press-fitting machine adopts a semi-automatic press-fitting machine, a press-fitting tool is installed on the press-fitting machine, the press-fitting tool comprises a sleeve and a press sleeve, one end of the sleeve is connected with the press-fitting machine, and the other end of the sleeve is provided with the press sleeve.

Preferably, the transfer mechanism comprises a frame, a transverse guide rail, a slide block, a vertical guide rail and an exhaust end clamp; the transverse guide rail is horizontally arranged on the frame; the sliding block is arranged on the transverse guide rail and horizontally moves along the transverse guide rail under the driving of power; the vertical guide rail is vertically arranged and connected with the sliding block, and the vertical guide rail does up-and-down lifting movement under the driving of power; the exhaust end clamp is installed at the lower end of the vertical guide rail and used for clamping the exhaust end of the compressor.

Preferably, the shell turnover device comprises a base, a guide pillar, a sliding sleeve, a turnover assembly and a turnover fixture; the guide post is vertically arranged on the front side of the base; the sliding sleeve is installed on the guide pillar, and under power drive, the sliding sleeve goes up and down along the guide pillar, the upset subassembly is connected with the sliding sleeve, the upset anchor clamps are connected with the upset subassembly, and the upset subassembly can make the upset anchor clamps overturn 180.

Preferably, the guide posts are three, and the overturning assembly adopts a swing cylinder.

Preferably, the rotary jacking mechanism comprises a supporting platform, a jacking platform, a rotary platform, a gear transmission mechanism, a speed reducer and a jacking cylinder; the jacking cylinder is vertically arranged and connected with the supporting platform, the jacking platform is horizontally arranged, and the jacking platform is connected with the end part of a cylinder rod of the jacking cylinder; the rotary platform is positioned above the jacking platform; the gear transmission mechanism comprises a pair of gears which are externally meshed, the gears are horizontally arranged on the jacking platform through a rotating shaft, one gear is connected with the jacking platform, the other gear is connected with the output end of the speed reducer, the speed reducer is vertically arranged, and the speed reducer is fixedly connected with the jacking platform.

Preferably, the housing fixture is in a cube shape and has a housing accommodating cavity.

Preferably, the following tool plate stops at the first roller line body or the second roller line body by adopting a stopper, the stopper is installed at each station where the following tool plate needs to stop, the stopper is driven by a motor to rotate, the stopper rotates upwards to stop the following tool plate, and the stopper rotates downwards to remove the stop of the following tool plate.

The utility model also provides a dry-type does not have oily screw compressor's assembly method adopts foretell dry-type to have oily screw compressor assembly line to implement, its characterized in that: the assembling method comprises the following steps:

the first step is as follows: the rotor assembly line and the housing assembly line start working simultaneously:

placing a rotor in a rotor tool at an exhaust end mounting station in a manual or mechanical mode, then carrying out press fitting on parts to be mounted at an exhaust end of a compressor by using a press fitting machine, mounting the exhaust end on the rotor after the press fitting is finished, and then moving the rotor tool to a station to be transferred;

placing the shell on a follow-up tooling plate at a position where each part is installed at the end of the shell cover plate by a manual or mechanical mode, installing the part to be installed at the end of the shell cover plate, moving the follow-up tooling plate to a first shell turning station after the installation is finished, turning the shell 180 degrees by using a shell turning device at the position to enable the end of the shell cover plate to face downwards, and then moving the follow-up tooling plate to a position where a rotor is assembled on the first shell;

transferring the rotor provided with the exhaust end at the station to be transferred by using a transfer mechanism and installing the rotor into a shell positioned at a first shell assembling rotor station;

the second step is that: the following tooling plate continuously moves to a second shell assembling rotor station, and the exhaust end and the shell are fixed manually;

the third step: the pallet continues to move to a second shell turning station, the shell is turned 180 degrees by using the shell turning device, a shell tool is placed on the pallet, the lower part of the turned shell is placed in the shell tool, and the cover plate end of the shell faces upwards;

the fourth step: the following tooling plate continuously moves to a shell cover plate mounting station, and a compressor cover plate is manually mounted at the cover plate end of the shell;

the fifth step: the pallet continues to move to a third shell turning station, the shell is turned for 180 degrees by using the shell turning device, the shell tool on the pallet is taken down, and the shell is placed on the pallet in a posture that the cover plate end faces downwards;

and a sixth step: and the following tool plate continuously moves to a gear box mounting station, and the gear box is mounted at the end part of the rotor, so that the compressor assembly is completed.

Compared with the prior art, the utility model, have following advantage and effect: the assembly line can effectively utilize auxiliary mechanical equipment to completely replace the movement, overturning, hoisting, press fitting and rotation of workpieces, reduces the manual operation, improves the working efficiency and can ensure the consistency of product performance.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic top view of an embodiment of the present invention.

Fig. 3 is a schematic front view of the transfer mechanism according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of a right-view structure of a transfer mechanism in an embodiment of the present invention.

Fig. 5 is a schematic top view of the transfer mechanism according to the embodiment of the present invention.

Fig. 6 is a schematic view of the installation structure of the stopper in the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a press fitting tool in an embodiment of the present invention.

Fig. 8 is a schematic front view of the shell turning device in the embodiment of the present invention.

Fig. 9 is a right-side view structural schematic diagram of the housing turnover device in the embodiment of the present invention.

Fig. 10 is a schematic top view of the housing turnover device according to the embodiment of the present invention.

Fig. 11 is a schematic perspective view of the rotary jacking mechanism in the embodiment of the present invention.

Fig. 12 is a schematic front view of the rotor tooling in the embodiment of the present invention.

Fig. 13 is a sectional view in the direction of a-a of fig. 12.

Fig. 14 is a schematic top view of the rotor tooling in the embodiment of the present invention.

Fig. 15 is a schematic structural diagram of the housing fixture in the embodiment of the present invention.

Description of reference numerals:

a transfer mechanism 1; a frame 111; a cross rail 112; a slider 113; vertical guide rails 114; an exhaust end clamp 115;

a first roller bed line body 2;

a press-mounting machine 3; a sleeve 31; a press sleeve 32;

a rotor tooling 4; the housing cavity 41;

a second roller bed line body 5; each part station 6 is arranged at the cover plate end of the shell; a first shell turnover station 7;

a first housing assembly rotor station 8; a second housing assembly rotor station 9; a second shell turnover station 10;

a housing cover plate mounting station 11; a third shell turnover station 12; a gearbox mounting station 13;

a housing turnover device 14; a base 141; a guide post 142; a sliding sleeve 143; a flip assembly 144; turning over the clamp 145;

rotating the jacking mechanism 15; a support platform 151; a jacking platform 152; the rotary platform 153; a speed reducer 154; a jacking cylinder 155;

a housing tooling 16; a housing accommodating cavity 161;

a stopper 17.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

See fig. 1-15.

The embodiment discloses a dry-type oil-free screw compressor assembly line which comprises a rotor assembly line, a shell assembly line and a transfer mechanism 1. The rotor assembly line is used for mounting the exhaust end of the compressor on the rotor; the casing assembly line is used for completing the assembly of the whole compressor, and the transfer mechanism 1 is used for transferring the rotor provided with the exhaust end to the casing assembly line.

Rotor assembly line includes a roller way line body 2 and pressure equipment machine 3, is provided with rotor frock 4 on the roller way line body 2, and rotor frock 4 has two stop stations: an exhaust end mounting station and a station to be transferred; rotor frock 4 is used for the location to place the rotor, and rotor frock 4 can move or stop on exhaust end installation station and wait to shift the station on roller way line body 2. The press-mounting machine 3 is arranged at one end of the first roller line body 2 and used for mounting the part on the exhaust end.

Specifically, a follower tool plate is mounted on the first roller line body 2, a rotor tool 4 is mounted on the follower tool plate, and a rotary jacking mechanism 15 is mounted at an exhaust end mounting station; the rotor tooling 4 is in a cube shape and has a containing cavity 41 with a shape matched with the shape of the rotor, and the rotor of the compressor is placed in the containing cavity 41.

Specifically, the press-fitting machine 3 adopts a semi-automatic press-fitting machine, a press-fitting tool is mounted on the press-fitting machine, the press-fitting tool comprises a sleeve 31 and a press sleeve 32, one end of the sleeve 31 is connected with the press-fitting machine, and the other end of the sleeve 31 is provided with the press sleeve 32.

In this embodiment, the casing assembly line includes a second roller line body 5, and a casing cover plate end mounting station 6, a first casing turnover station 7, a first casing assembly rotor station 8, a second casing assembly rotor station 9, a second casing turnover station 10, a casing cover plate mounting station 11, a third casing turnover station 12, and a gear box mounting station 13 are sequentially arranged on the second roller line body 5 according to the assembly process steps.

In this embodiment, also install the tooling board on No. two roller line bodies 5, the tooling board removes and stops in proper order on No. two roller line bodies 5 and installs each part station 6, first casing upset station 7, first casing equipment rotor station 8, second casing equipment rotor station 9, second casing upset station 10, casing apron installation station 11, third casing upset station 12 and gear box installation station 13 department at casing apron end.

In this embodiment, the first shell turnover station 7, the second shell turnover station 10 and the third shell turnover station 12 are all provided with shell turnover devices 14; and all install rotatory climbing mechanism 15 at casing apron end installation each part station 6, second casing equipment rotor station 9, casing apron installation station 11 and gear box installation station 13 department, rotatory climbing mechanism 15 is used for upwards jacking the pallet that stops in this station department and breaks away from and make the pallet rotate with No. two roller line bodies 5.

In this embodiment, considering that the shells at the second shell turning station 10, the shell cover plate mounting station 11, and the third shell turning station 12 are placed with the cover plate end up, and the exhaust end is downward at this time, a part of the shaft of the rotor protrudes from the exhaust end, if no additional tool is provided for assistance, it is difficult to place the shell at the three stations with the exhaust end down, and therefore, the shell tool 16 is placed on the follower tool plate staying at the second shell turning station 10, the shell cover plate mounting station 11, and the third shell turning station 12, the shell tool 16 is used for positioning the shell, the shell tool 16 is in a cube shape and has a shell accommodating cavity 161, the shell accommodating cavity 161 is mainly used for accommodating the protruding part of the shaft of the rotor, and the protruding shaft of the part is used for mounting the gear box.

In this embodiment, the transfer mechanism 1 includes a frame 111, a transverse rail 112, a slider 113, a vertical rail 114, and an exhaust end jig 115; the transverse guide rails 112 are horizontally mounted on the frame 111; the sliding block 113 is installed on the transverse guide rail 112, and the sliding block 113 horizontally moves along the transverse guide rail 112 under the driving of power; the vertical guide rail 114 is vertically arranged and connected with the slider 113, and the vertical guide rail 114 moves up and down under the driving of power; a discharge end clamp 115 is mounted to the lower end of the vertical guide rail 114 for clamping the discharge end of the compressor. The exhaust end fixture 115 can move up and down and left and right by arranging the transverse guide rails 112, the sliding blocks 113 and the vertical guide rails 114, so that the rotor provided with the exhaust end is transferred to a shell assembly line.

In this embodiment, the shell turning device 14 includes a base 141, a guide post 142, a sliding sleeve 143, a turning assembly 144, and a turning fixture 145; the guide post 142 is vertically arranged at the front side of the base 141; the sliding sleeve 143 is installed on the guide post 142, and under the power drive, the sliding sleeve 143 goes up and down along the guide post 142, and the upset subassembly 144 is connected with the sliding sleeve 143, and the upset anchor clamps 145 is connected with the upset subassembly 144, and the upset subassembly 144 can make the upset anchor clamps 145 overturn 180 °. Preferably, three guide posts 142 are provided, and the turnover assembly 144 is a swing cylinder. The working process of the shell turnover device 14 is as follows: before the upset, the sliding sleeve 143 drives upset anchor clamps 145 and accomplishes the descending action along three guide pillars 142, and after the sliding sleeve 143 dropped to the take the altitude, upset anchor clamps 145 cliied the casing, then sliding sleeve 143 began to rise, improved the casing to the altitude after, upset subassembly 144 drove upset anchor clamps 145 and rotates 180, accomplished the upset action of casing.

In this embodiment, the rotary jacking mechanism 15 is used for meeting the rotary requirement of the compressor during assembly, facilitates the assembly of an operator, and meets the requirement that each part carries out corresponding assembly procedures in order. The device comprises a supporting platform 151, a jacking platform 152, a rotating platform 153, a gear transmission mechanism, a speed reducer 154 and a jacking cylinder 155; the jacking cylinder 155 is vertically arranged and connected with the supporting platform 151, the jacking platform 152 is horizontally arranged, and the jacking platform 152 is connected with the end part of a cylinder rod of the jacking cylinder 155; the rotating platform 153 is located above the jacking platform 152; the gear transmission mechanism comprises a pair of gears which are externally meshed, the gears are horizontally arranged on the jacking platform 152 through a rotating shaft, one of the gears is connected with the jacking platform 152, the other gear is connected with the output end of the speed reducer 154, the speed reducer 154 is vertically arranged, and the speed reducer 154 is fixedly connected with the jacking platform 152.

This rotary jacking mechanism 15 is at the during operation, utilize jacking cylinder 155 to make progress jack-up with jacking platform 152 and rotary platform 153 simultaneously, until rotary platform 153 and the contact of tooling board of accompanying line, then jacking cylinder 155 continues to push up, tooling board breaks away from with a roll table line body 2 or No. two roll table line bodies 5, when tooling board of accompanying line needs to rotate, start speed reducer 154, gear drive drives rotary platform 153 under the drive of speed reducer 154 and rotates, and then realize that tooling board rotates, satisfy the rotatory demand of compressor during the assembly.

In this embodiment, the pallet stops in the first roller line body 2 or the second roller line body 5 and is realized by the stopper 17, the stopper 17 is installed at each station where the pallet needs to stop, the stopper 17 is driven by the motor to rotate, the pallet is stopped by upward rotation, and the pallet is stopped by downward rotation.

In this embodiment, the method for assembling the dry oil-free screw compressor by using the assembly line includes the following steps:

the first step is as follows: the rotor assembly line and the housing assembly line start working simultaneously:

placing a rotor in a rotor tool 4 at an exhaust end mounting station in a manual or mechanical mode, then carrying out press fitting on parts to be mounted at an exhaust end of a compressor by using a press fitting machine 3, mounting the exhaust end on the rotor after the press fitting is finished, and then moving the rotor tool 4 to a station to be transferred;

placing the shell on a follow-up tooling plate at a position 6 where each part is installed at the end of the shell cover plate by using a manual or mechanical mode, installing the part to be installed at the end of the shell cover plate, moving the follow-up tooling plate to a first shell turning station 7 after the installation is finished, turning the shell 180 degrees by using a shell turning device 14 at the station to enable the end of the shell cover plate to face downwards, and then moving the follow-up tooling plate to a first shell assembling rotor station 8;

transferring the rotor provided with the exhaust end at the station to be transferred by using the transfer mechanism 1 and installing the rotor into a shell at a first shell assembling rotor station 8;

the second step is that: the following tooling plate continuously moves to a second shell assembling rotor station 9, and the exhaust end and the shell are fixed manually;

the third step: the pallet continues to move to a second shell turning station 10, at this time, the shell is turned 180 degrees by using a shell turning device 14, a shell tool 16 is placed on the pallet, the lower part of the turned shell is placed in the shell tool 16, and the cover plate end of the shell faces upwards;

the fourth step: the following tooling plate continuously moves to a shell cover plate mounting station 11, and a compressor cover plate is manually mounted at the cover plate end of the shell;

the fifth step: the pallet continues to move to a third shell turning station 12, at this time, the shell is turned by 180 degrees by using a shell turning device 14, the shell tool 16 on the pallet is taken down, and the shell is placed on the pallet in a state that the cover plate end faces downwards;

and a sixth step: and the follower tooling plate continues to move to a gear box mounting station 13, and the gear box is mounted at the end part of the rotor, so that the compressor assembly is completed.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the patent idea of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (9)

1. The assembly line for the dry type oil-free screw compressor is characterized in that: comprises a rotor assembly line, a shell assembly line and a transfer mechanism (1); the rotor assembly line is used for mounting the exhaust end of the compressor on the rotor; the shell assembly line is used for completing the assembly of the whole compressor, and the transfer mechanism (1) is used for transferring the rotor provided with the exhaust end to the shell assembly line; the rotor assembly line comprises a roller way line body (2) and a press-fitting machine (3), a rotor tool (4) is arranged on the roller way line body (2), and the rotor tool (4) is provided with two stop stations: an exhaust end mounting station and a station to be transferred; the rotor tool (4) is used for positioning and placing a rotor, and the rotor tool (4) can move on the first roller line body (2) or stop at an exhaust end mounting station and a station to be transferred; the press-mounting machine (3) is arranged at one end of the first roller line body (2) and is used for mounting a part on an exhaust end;

the shell assembling line comprises a second roller way line body (5), and a shell cover plate end part mounting station (6), a first shell overturning station (7), a first shell assembling rotor station (8), a second shell assembling rotor station (9), a second shell overturning station (10), a shell cover plate mounting station (11), a third shell overturning station (12) and a gear box mounting station (13) are sequentially arranged on the second roller way line body (5) according to the assembling process steps;

a follower tooling plate is arranged on the second roller line body (5), moves on the second roller line body (5) and sequentially stops at a position where each part (6) is arranged at the end of the shell cover plate, a first shell turning station (7), a first shell assembling rotor station (8), a second shell assembling rotor station (9), a second shell turning station (10), a shell cover plate installing station (11), a third shell turning station (12) and a gear box installing station (13); shell turnover devices (14) are respectively arranged at the first shell turnover station (7), the second shell turnover station (10) and the third shell turnover station (12); rotary jacking mechanisms (15) are arranged at a position where each part station (6), a second shell assembling rotor station (9), a shell cover plate mounting station (11) and a gear box mounting station (13) are arranged at the shell cover plate end, and the rotary jacking mechanisms (15) are used for jacking the following tooling plate staying at the station upwards to be separated from a second roller line body (5) and enabling the following tooling plate to rotate; place casing frock (16) on the retinue frock board that stops in second casing upset station (10), casing apron installation station (11) and third casing upset station (12) department, casing frock (16) are used for fixing a position the casing.

2. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: similarly, a following tooling plate is also arranged on the first roller line body (2), a rotor tooling (4) is arranged on the following tooling plate, and a rotary jacking mechanism (15) is also arranged at the exhaust end mounting station; the rotor tool (4) is in a cube shape and is provided with an accommodating cavity (41) with the shape matched with the shape of the rotor, and the rotor of the compressor is placed in the accommodating cavity (41).

3. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the semi-automatic pressing machine is adopted in the pressing machine (3), a pressing tool is installed on the pressing machine and comprises a sleeve (31) and a pressing sleeve (32), one end of the sleeve (31) is connected with the pressing machine, and the pressing sleeve (32) is installed at the other end of the sleeve (31).

4. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the transfer mechanism (1) comprises a frame (111), a transverse guide rail (112), a sliding block (113), a vertical guide rail (114) and an exhaust end clamp (115); the transverse guide rail (112) is horizontally arranged on the frame (111); the sliding block (113) is arranged on the transverse guide rail (112), and the sliding block (113) horizontally moves along the transverse guide rail (112) under the driving of power; the vertical guide rail (114) is vertically arranged and connected with the sliding block (113), and the vertical guide rail (114) moves up and down under the driving of power; the exhaust end clamp (115) is arranged at the lower end of the vertical guide rail (114) and is used for clamping the exhaust end of the compressor.

5. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the shell overturning device (14) comprises a base (141), a guide post (142), a sliding sleeve (143), an overturning assembly (144) and an overturning clamp (145); the guide post (142) is vertically arranged on the front side of the base (141); the sliding sleeve (143) is mounted on the guide post (142), the sliding sleeve (143) is driven by power to lift up and down along the guide post (142), the overturning assembly (144) is connected with the sliding sleeve (143), the overturning fixture (145) is connected with the overturning assembly (144), and the overturning assembly (144) can enable the overturning fixture (145) to overturn 180 degrees.

6. An assembly line for dry oil-free screw compressors according to claim 5, characterized in that: the number of the guide columns (142) is three, and the overturning assembly (144) adopts a swing cylinder.

7. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the rotary jacking mechanism (15) comprises a supporting platform (151), a jacking platform (152), a rotary platform (153), a gear transmission mechanism, a speed reducer (154) and a jacking cylinder (155); the jacking cylinder (155) is vertically arranged and connected with the supporting platform (151), the jacking platform (152) is horizontally arranged, and the jacking platform (152) is connected with the end part of a cylinder rod of the jacking cylinder (155); the rotating platform (153) is positioned above the jacking platform (152); the gear transmission mechanism comprises a pair of gears which are meshed externally, the gears are horizontally arranged on the jacking platform (152) through a rotating shaft, one of the gears is connected with the jacking platform (152), the other gear is connected with the output end of the speed reducer (154), the speed reducer (154) is vertically arranged, and the speed reducer (154) is fixedly connected with the jacking platform (152).

8. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the shell tool (16) is in a cube shape and is provided with a shell accommodating cavity (161).

9. An assembly line for dry oil-free screw compressors according to claim 1, characterized in that: the following tooling plate stops at the first roller way line body (2) or the second roller way line body (5) by adopting a stopper (17), the stopper (17) is installed at each station where the following tooling plate needs to stop, the stopper (17) is driven by a motor to rotate, the upward rotation stops the following tooling plate, and the downward rotation stops the following tooling plate.

Images