CN213351489U

CN213351489U - Conveying device of full-automatic assembling machine for medium-low pressure oil mass distributor

Info

Publication number: CN213351489U
Application number: CN202022378845.8U
Authority: CN
Inventors: 姚燕业; 张均行
Original assignee: Guangdong River Valley Fluid Technology Co ltd
Current assignee: Guangdong River Valley Fluid Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-04
Anticipated expiration: 2030-10-22

Abstract

The application relates to a conveying device of a full-automatic assembling machine of a middle-low pressure oil mass distributor, which comprises a workbench, a conveying rail arranged on the workbench, and a mounting seat which is arranged on the workbench in a sliding manner and extends towards the length direction of the conveying rail, wherein a sliding groove for clamping one end of a branch oil duct is arranged at the top of the conveying rail, and the sliding groove extends along the length direction of the conveying rail; the mounting seat is provided with clamping components used for clamping the shell at intervals along the extending direction; the workbench is provided with a driving assembly for driving the mounting seat to slide towards the length direction of the sliding groove. This application has the effect that improves the production efficiency to the distributor.

Description

Conveying device of full-automatic assembling machine for medium-low pressure oil mass distributor

Technical Field

The application relates to the field of distributor production equipment, in particular to a conveying device of a full-automatic assembling machine of a medium-low pressure oil distributor.

Background

At present, each kinematic pair of mechanical equipment needs quantitative lubrication by using a distributor, which is an important link for realizing mechanical automation, and the distributor is used for quantitatively distributing and conveying lubricating oil to each part needing lubrication in the mechanical equipment, so that the distributor is generally arranged on an oil feeder; the manufacture of distributors is therefore a very important part of the production of fittings for mechanical equipment today.

Referring to fig. 1, the distributor includes a housing 101, an oil outlet assembly 104 and a metering joint assembly 105, the housing 101 includes a main oil pipe 102 and branch oil passages 103, the main oil pipe 102 and the branch oil passages 103 are integrally formed, the main oil pipe 102 extends linearly, the branch oil passages 103 are provided with a plurality of branch oil passages 103, the plurality of branch oil passages 103 are arranged at intervals along the length direction of the main oil pipe 102, each branch oil passage 103 is communicated with the main oil pipe 102 and is arranged perpendicular to the main oil pipe 102, the branch oil passages 103 are parallel to each other, two opposite ends of each branch oil passage 103 extend out of two opposite sides of the main oil pipe 102 in the length direction, the oil outlet assembly 104 is mounted at a pipe orifice of one end of each branch oil passage 103, and the metering joint assembly 105 is mounted at; an oil inlet and an oil outlet are respectively arranged at two opposite ends of the main oil pipeline 102, mounting blocks 106 are fixed to two branch oil passages 103 which are located at positions closest to the oil inlet and the oil outlet of the main oil pipeline 102, the mounting blocks 106 are fixed to the side walls of the end portions, close to the oil outlet mounting assembly 104, of the branch oil pipelines, the mounting blocks 106 are respectively provided with mounting holes 107 perpendicular to the main oil pipeline 102 and the branch oil passages 103, and the mounting blocks 106 are fixed to the side walls, closest to the oil outlet or the oil outlet, of the branch oil passages 103.

The oil outlet assembly 104 comprises an oil outlet joint, a bidirectional ball and a buffer valve seat, when the joint assembly of the oil outlet is assembled into the branch oil passage 103, the joint assembly of the oil outlet is sequentially assembled at the corresponding end part of the branch oil passage 103 according to the sequence of the buffer valve seat, the bidirectional ball and the oil outlet joint, and each part of the oil outlet assembly 104 is respectively carried out at the corresponding station; a first external thread is arranged on the outer side wall of the oil outlet joint, and a first internal thread in threaded fit with the first external thread is arranged at the port of the branch oil passage 103;

the metering joint assembly 105 comprises a mandrel, a spring, a guide sleeve and a metering copper joint, when the metering joint assembly 105 is assembled into the branch oil duct 103, the mandrel, the spring, the guide sleeve and the metering copper joint are sequentially assembled at the corresponding end part of the branch oil duct 103 according to the sequence of the mandrel, the spring, the guide sleeve and the metering copper joint, and each part of the metering joint assembly 105 is respectively carried out at the corresponding station; wherein the outer side wall of the metering joint assembly 105 is provided with a second external thread, and a port of the branch oil passage 103 is provided with a second internal thread which is in threaded fit with the second external thread.

The parts of the oil outlet assembly and the metering joint assembly are assembled in the branch oil duct manually in each assembling step, and the previous part is assembled and then the shell is manually transferred to the next assembling station for assembling the next part; and after the oil outlet assembly is assembled, the shell is turned to the other end to assemble the metering joint assembly.

In view of the above-mentioned related art, the inventor believes that there is a defect that the production efficiency is low because the transfer is performed manually between the two assembly stations.

SUMMERY OF THE UTILITY MODEL

In order to improve the production efficiency to the distributor, this application provides a conveyor of full-automatic kludge of well low pressure oil mass distributor.

The application provides a conveyor of full-automatic kludge of well low pressure oil mass distributor adopts following technical scheme:

a conveying device of a full-automatic assembling machine of a medium-low pressure oil distributor comprises a workbench, a conveying rail arranged on the workbench, and a mounting seat which is arranged on the workbench in a sliding manner and extends towards the length direction of the conveying rail, wherein a sliding groove for clamping one end of a branch oil duct is formed in the top of the conveying rail, and the sliding groove extends along the length direction of the conveying rail; the mounting seat is provided with clamping components used for clamping the shell at intervals along the extending direction; the workbench is provided with a driving assembly for driving the mounting seat to slide towards the length direction of the sliding groove.

By adopting the technical scheme, when the distributor is processed, the shell is placed at one end of the feeding hole of the conveying track, and one end of the branch oil duct in the shell, which is provided with the metering joint assembly, is downwards clamped into the sliding groove; then clamping the shell through a clamping assembly arranged at one end closest to a feed port of the conveying track, starting a driving assembly to drive an installation seat to slide towards the length direction of a sliding groove until the shell is conveyed to a first machining procedure station, starting the driving assembly to convey the shell to the next machining procedure station after the shell is assembled through the process, loosening the constraint on the shell through the clamping assembly, starting the driving assembly to drive the installation seat to move back to the previous machining procedure, and clamping the next shell through the clamping assembly; the operation process can convey the shell to each processing process in a production line, and the processing efficiency of the distributor is improved.

Preferably, the clamping assembly comprises: install the seat that slides at the mount pad and install in the grip block of the seat that slides with the dismantlement formula, the centre gripping subassembly still includes: and the positioning piece is arranged on the clamping block and used for positioning the shell.

By adopting the technical scheme, the shell can be positioned by the positioning piece arranged on the clamping block, so that the shell can be driven to slide towards the sliding groove in the sliding process of the positioning seat; in addition, the clamping block is detachably mounted on the sliding seat, so that the clamping block is convenient to maintain or replace, and the practicability is improved.

Preferably, the sliding seat slides towards a direction perpendicular to the length direction of the conveying track, and the positioning member includes: locate the inserted bar of grip block at the relative both ends of delivery track length direction and be used for the drive to slide the gliding first driving piece of seat, the inserted bar extends towards the slip direction of seat that slides, the one end of inserted bar is used for pegging graft in the mounting hole of casing, the other end passes through the connecting piece dismantlement formula to be installed in the grip block.

By adopting the technical scheme, when the mounting seat moves to a position corresponding to a shell, the first driving piece is started to drive the sliding seat to slide until the end part of the insertion rod is inserted into the mounting hole of the shell, and the shell can be driven to move in the sliding groove in the sliding process of the sliding seat; through installing the connecting piece dismantlement formula at the grip block to make the connecting piece can be convenient for change.

Preferably, the clamping block is provided with an insertion hole for the insertion rod to be far away from one end of the mounting hole for being inserted into the shell, the connecting piece is a screw rod, the clamping block is provided with a threaded hole, the screw rod is installed in the threaded hole in a threaded manner, one end of the screw rod extends into the insertion hole and abuts against the insertion rod, and the other end of the screw rod extends out of the clamping block.

Through adopting above-mentioned technical scheme, when needs installation spliced pole, insert the spliced pole earlier in the spliced pole, then rotate the screw rod again and extend the outer one end of grip block, it is spacing to the extension pole can be accomplished at the spliced pole to make the screw rod extend the one end butt that goes into the spliced pole, this simple structure, the simple operation.

Preferably, the clamping block sets up a plurality of spliced eye towards the length direction interval of transfer orbit, the clamping block sets up a plurality of screw hole towards the length direction interval of transfer orbit.

Through adopting above-mentioned technical scheme, be provided with a plurality of with spliced eye and screw hole to can be according to the different length of casing, different specifications refer to the different quantity of branch oil duct, thereby make the spliced pole insert in the spliced eye of difference, can carry out the centre gripping and stably carry the casing of different specifications.

Preferably, the driving assembly includes: the screw rod and the threads installed on the workbench are rotatably installed on a sliding block of the screw rod, a guide rod extending along the length direction of the screw rod, a sliding sleeve of the guide rod is arranged on the sliding sleeve, and the sliding sleeve is used for driving the screw rod to rotate a second driving piece, the sliding block and the sliding sleeve are both connected to the installation seat, and the screw rod extends towards the length direction of the conveying track.

Through adopting above-mentioned technical scheme, when needs drive mount pad remove, through starting the second driving piece, the drive lead screw rotates, can drive the extending direction removal of slider court lead screw, slides in the guide bar through the sliding sleeve for the mount pad slides thereupon, and this structure is simple and convenient, and the practicality is high.

Preferably, a conveying assembly for conveying the shell into the conveying track is arranged at the position, close to the feeding hole of the conveying track, of the workbench.

Through adopting above-mentioned technical scheme, make casing transport input delivery track through being provided with conveying component to improve feeding efficiency, and then improved production efficiency.

Preferably, the conveying assembly comprises: the conveying direction of the conveying belt is perpendicular to the length direction of the conveying track, the feeding track is arranged at a discharge port of the conveying belt, and the feeding track is provided with a guide chute which is communicated with the sliding chute and is parallel to the conveying track; and the third driving workpiece is used for conveying the shell entering the guide chute into the sliding chute.

Through adopting above-mentioned technical scheme, place the casing in the conveyer belt to the array direction that makes the branch oil duct of casing is unanimous with delivery track's length direction, thereby through starting the conveyer belt, makes the casing that is located the conveyer belt foremost get into behind the baffle box and stop the conveyer belt, then rethread third driving piece will get into the casing in the baffle box and send away from the baffle box and send into the chute that slides in, this structure is simple and convenient, and the operation is convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the distributor is processed, the shell is placed at one end of a feed port of the conveying track, and one end of a branch oil duct in the shell, which is provided with the metering joint assembly, is downwards clamped into the sliding groove; then clamping the shell through a clamping assembly arranged at one end closest to a feed port of the conveying track, starting a driving assembly to drive an installation seat to slide towards the length direction of a sliding groove until the shell is conveyed to the position of the next machining procedure station, starting the driving assembly to convey the shell to the position of the next machining procedure station after the shell is assembled through the working procedure, loosening the constraint on the shell through the clamping assembly, starting the driving assembly to drive the installation seat to move back to the previous machining procedure, and clamping the next shell through the clamping assembly; the operation process can convey the shell to each processing process in a production line, so that the processing efficiency of the distributor is improved;

2. the shell is placed in the conveying belt, the arrangement direction of the branch oil passages of the shell is consistent with the length direction of the conveying track, the conveying belt is stopped after the shell located at the foremost end of the conveying belt enters the material guide groove by starting the conveying belt, and then the shell entering the material guide groove is conveyed away from the material guide groove and conveyed into the sliding groove by the third driving piece.

Drawings

Figure 1 is a partial exploded view of a dispenser.

Fig. 2 is an overall structure diagram of the present invention.

Fig. 3 is a schematic view of another overall view structure of the present invention.

Fig. 4 is a partially enlarged view of a in fig. 1.

Fig. 5 is an overall structure diagram of the clamping assembly of the present invention.

Fig. 6 is a partially enlarged view of B in fig. 5.

Description of reference numerals: 1. a work table; 2. a conveying track; 21. a sliding groove; 3. a mounting seat; 4. a clamping assembly; 41. a sliding seat; 42. a clamping block; 421. inserting holes; 422. a threaded hole; 43. a plug rod; 44. a screw; 45. a first driving member; 5. a drive assembly; 51. a screw rod; 52. a slider; 53. a guide bar; 54. a sliding sleeve; 55. a second driving member; 6. a delivery assembly; 61. a conveyor belt; 62. a feed rail; 621. a material guide chute; 63. a third driving member; 101. a housing; 102. a main oil conduit; 103. a branch oil passage; 104. an oil outlet assembly; 105. a metering sub assembly; 106. mounting blocks; 107. and (7) installing holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Referring to fig. 1, the distributor includes a housing 101, an oil outlet assembly 104 and a metering joint assembly 105, the housing 101 includes a main oil pipe 102 and branch oil passages 103, the main oil pipe 102 and the branch oil passages 103 are integrally formed, the main oil pipe 102 extends linearly, the branch oil passages 103 are provided with a plurality of branch oil passages 103, the plurality of branch oil passages 103 are arranged at intervals along the length direction of the main oil pipe 102, each branch oil passage 103 is communicated with the main oil pipe 102 and is arranged perpendicular to the main oil pipe 102, the branch oil passages 103 are parallel to each other, two opposite ends of each branch oil passage 103 extend out of two opposite sides of the main oil pipe 102 in the length direction, the oil outlet assembly 104 is mounted at a pipe orifice of one end of each branch oil passage 103, and the metering joint assembly 105 is mounted at; an oil inlet and an oil outlet are respectively arranged at two opposite ends of the main oil pipeline 102, mounting blocks 106 are fixed to the two branch oil passages 103 which are located at the positions closest to the oil inlet and the oil outlet of the main oil pipeline 102, the mounting blocks 106 are fixed to the side walls of the end portions, close to the oil outlet mounting assemblies 104, of the branch oil passages 103, the mounting blocks 106 are respectively provided with mounting holes 107 perpendicular to the main oil pipeline 102 and the branch oil passages 103, and the mounting blocks 106 are fixed to the side walls, closest to the oil outlet or the oil outlet, of the branch oil passages 103.

The embodiment of the application discloses conveyor of full-automatic kludge of well low pressure oil mass distributor. Referring to fig. 2 and 3, the conveying device comprises a workbench 1, a conveying track 2 and a mounting seat 3, wherein the mounting seat 3 is mounted on the table top of the workbench 1 in a sliding manner, and the mounting seat 3 extends towards the horizontal direction; the conveying track 2 is installed on the mesa of workstation 1 and is located one of them side of mount pad 3 length direction, and conveying track 2 extends towards the length direction of mount pad 3, and one side of the mesa of conveying track 2 raw materials workstation 1 is equipped with the groove of sliding 21, and the groove of sliding 21 extends towards the direction of conveying track 2 length direction, and the groove of sliding 21 supplies the tip card of the branch oil duct 103 of casing 101 to go into to casing 101 slidable mounting is in the groove of sliding 21.

The table top of the working table 1 is provided with a driving assembly 5 for driving the mounting base 3 to slide, and the driving assembly 5 comprises a screw rod 51, a sliding block 52, a guide rod 53, a sliding sleeve 54 and a second driving piece 55.

The screw rod 51 is rotatably installed on the table top of the workbench 1 and is positioned right below the installation base 3, the screw rod 51 extends towards the length direction of the conveying track 2, the sliding blocks 52 are fixed on one side of the installation base 3 close to the table top of the workbench 1 at equal intervals and are arranged along the length direction of the screw rod 51, and the sliding blocks 52 are installed on the screw rod 51 in a threaded mode; the guide rod 53 is fixedly arranged on the table top of the workbench 1, the guide rod 53 extends towards the extension direction of the screw rod 51, the sliding sleeves 54 are fixed on one side of the mounting base 3 close to the table top of the workbench 1 at equal intervals and are arranged along the length direction of the screw rod 51, and the sliding sleeves 54 are sleeved on the guide rod 53 in a sliding manner; the second driving piece 55 is a motor, and a conveying shaft of the second driving piece 55 is fixed on the end part of the screw rod 51; therefore, the screw rod 51 can be driven to rotate by the second driving piece 55, and the mounting base 3 can be driven to stably slide towards the length direction of the screw rod 51.

Referring to fig. 2 and 4, the working platform 1 is provided with a conveying assembly 6 at a position close to one end of the feeding hole of the conveying track 2, and the conveying assembly 6 comprises a conveyor belt 61, a feeding track 62 and a third driving member 63.

The conveying belt 61 is fixedly installed on the workbench 1, the conveying direction of the conveying belt 61 is perpendicular to the length direction of the conveying track 2, the feeding track 62 is fixed on the workbench 1 at the position of a discharge port of the conveying belt 61, the feeding track 62 is provided with a material guide groove 621, and the material guide groove 621 extends towards the extension direction of the conveying track 2; the third driving member 63 is a cylinder, one end of the material guiding groove 621 is communicated with the material inlet of the sliding chute 21, and the third driving member 63 is fixed at the other end of the material guiding groove 621; the piston of the third driving member 63 extends and contracts in the longitudinal direction of the material guiding chute 621, and the piston of the third driving member 63 faces the sliding chute 21; the housing 101 is placed on the conveyor 61, the conveyor 61 is started to feed the housing 101 into the material guiding slot 621, and then the housing 101 is pushed into the sliding slot 21 by the third driving member 63 to complete feeding.

Referring to fig. 3 and 5, a plurality of clamping assemblies 4 are arranged on one side of the table top of the mounting base 3 away from the workbench 1 at intervals along the length direction of the conveying track 2, and one clamping assembly 4 corresponds to one part assembling station for machining the oil outlet assembly 104 and the metering joint assembly 105.

The clamping assembly 4 comprises a sliding seat 41, a clamping block 42, an insertion rod 43, a screw 44 and a first driving part 45, the sliding seat 41 is mounted on the mounting seat 3 in a sliding manner, the sliding direction of the sliding seat 41 is perpendicular to the length direction of the conveying track 2, the first driving part 45 is a cylinder, and a piston of the first driving part 45 is fixed on the sliding seat 41; the one end of grip block 42 is passed through the bolt dismantlement formula and is installed at sliding seat 41, the other end and extend towards the direction directly over sliding groove 21, the equal interval of the one end terminal surface that bolted connection department was kept away from to grip block 42 is equipped with a plurality of spliced eyes 421, the array orientation of spliced eyes 421 is unanimous with delivery track 2's length direction, one side that mount block 3 was kept away from to grip block 42 and the position that corresponds every spliced eye 421 all is equipped with screw hole 422.

Referring to fig. 5 and 6, the clamping block 42 is provided with the insertion rods 43 at two opposite ends in the length direction of the conveying track 2, the insertion rods 43 extend in the horizontal direction and in the direction perpendicular to the length direction of the conveying track 2, one end of each insertion rod 43 is inserted into the corresponding insertion hole 421, the other end of each insertion rod 43 extends out of the clamping block 42, and one end of each insertion rod 43 extending out of the corresponding insertion hole 421 is used for being inserted into the mounting hole 107 of the housing 101; the threaded holes 422 are communicated with the corresponding plug holes 421, the threaded holes 422 extend in the vertical direction, the threaded holes 422 corresponding to the plug holes 421 in which the plug rods 43 are plugged are provided with the threaded rods 44 in a threaded manner, one ends of the threaded rods 44 extend into the plug holes 421 and abut against the plug rods 43, and the other ends of the threaded rods 44 extend out of the clamping blocks 42; so that the housing 101 can be driven to slide along the length direction of the sliding groove 21 by the sliding of the mounting seat 3; and the distance between the two bayonet rods 43 can be adjusted by the housing 101 having different numbers of branch oil passages 103.

The implementation principle of the conveying device of the full-automatic assembling machine of the middle-low pressure oil distributor in the embodiment of the application is as follows: when the distributor is processed, the two insertion rods 43 of each clamping block 42 are adjusted to the position of the distance between the two mounting holes 107 in the shell 101; the conveyor belt 61 is started, the shell 101 closest to one end of the discharge port of the conveyor belt 61 enters the guide groove 621, and then the shell 101 is pushed into the sliding groove 21 through the third driving piece 63; then, the first driving piece 45 arranged at the end closest to the feed port of the conveying track 2 is started, so that the insertion rods 43 are inserted into the two mounting holes 107 of the shell 101; then, the second driving part 55 is started to drive the screw rod 51 to rotate, and then the mounting base 3 is driven to slide towards the length direction of the sliding groove 21 until the shell 101 is conveyed to a first machining procedure station, after the shell 101 is assembled through the procedure, the second driving part 55 is started to convey the shell 101 to the next machining procedure station, then the first driving part 45 is started to enable the inserting rod 43 to move out of the mounting hole 107, then the second driving part 55 is started to drive the mounting base 3 to move back to the previous machining procedure, and then the next shell 101 is clamped through the clamping component 4; the operation process can convey the shell 101 to each processing process in a production line, and the processing efficiency of the distributor is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The conveying device of the full-automatic assembling machine of the medium-low pressure oil distributor is characterized by comprising a workbench (1), a conveying rail (2) arranged on the workbench (1), and a mounting seat (3) which is arranged on the workbench (1) in a sliding manner and extends towards the length direction of the conveying rail (2), wherein a sliding groove (21) for clamping one end of a branch oil duct (103) is formed in the top of the conveying rail (2), and the sliding groove (21) extends along the length direction of the conveying rail (2); the mounting seat (3) is provided with clamping components (4) used for clamping the shell (101) at intervals along the extending direction; the workbench (1) is provided with a driving component (5) for driving the mounting seat (3) to slide towards the length direction of the sliding groove (21).

2. The conveying device of the full-automatic assembling machine of the middle and low pressure oil quantity distributor according to claim 1, wherein the clamping assembly (4) comprises: install sliding seat (41) and dismantlement formula in mount pad (3) and install in grip block (42) of sliding seat (41), clamping component (4) still include: and a positioning member provided to the holding block (42) and used for positioning the housing (101).

3. The conveying device of the full-automatic assembling machine of the middle and low pressure oil distributor according to claim 2, wherein the sliding seat (41) slides towards a direction perpendicular to the length direction of the conveying track (2), and the positioning member comprises: locate insert rod (43) of grip block (42) at the relative both ends of delivery track (2) length direction and be used for driving gliding first driving piece (45) of seat (41) that slides, insert rod (43) extend towards the slip direction of seat (41) that slides, the one end of insert rod (43) is used for pegging graft in mounting hole (107) of casing (101), and the other end passes through the connecting piece dismantlement formula to be installed in grip block (42).

4. The conveying device of the full-automatic assembling machine for the middle and low pressure oil quantity distributor according to claim 3, wherein the clamping block (42) is provided with an inserting hole (421) for inserting an inserting rod (43) into one end of the clamping block far away from one end of a mounting hole (107) for inserting into the housing (101), the connecting piece is a screw rod (44), the clamping block (42) is provided with a threaded hole (422), the screw rod (44) is installed in the threaded hole (422) in a threaded manner, one end of the screw rod (44) extends into the inserting hole (421) and abuts against the inserting rod (43), and the other end of the screw rod extends out of the clamping block (42).

5. The conveying device of the full-automatic assembling machine for the middle and low pressure oil quantity distributor according to claim 4, wherein the clamping block (42) is provided with a plurality of inserting holes (421) at intervals in the length direction of the conveying track (2), and the clamping block (42) is provided with a plurality of threaded holes (422) at intervals in the length direction of the conveying track (2).

6. The conveying device of the full-automatic assembling machine of the middle and low pressure oil distributor according to claim 1, wherein the driving assembly (5) comprises: lead screw (51), screw thread that rotate to install in workstation (1) install in slider (52) of lead screw (51), along guide bar (53) that the length direction of lead screw (51) extended, sliding sleeve (54) of guide bar (53) and be used for the drive lead screw (51) pivoted second driving piece (55), slider (52) and sliding sleeve (54) all connect in mount pad (3), lead screw (51) extend towards the length direction of transfer rail (2).

7. The conveying device of the full-automatic assembling machine for the middle-low pressure oil quantity distributor according to claim 1, wherein a conveying assembly (6) for conveying the shell (101) into the conveying track (2) is arranged at a position, close to a feeding hole of the conveying track (2), of the workbench (1).

8. The conveying device of the full-automatic assembling machine of the middle and low pressure oil distributor according to claim 7, wherein the conveying assembly (6) comprises: the conveying device comprises a conveying belt (61), a feeding track (62) and a third driving piece (63), wherein the conveying direction of the conveying belt (61) is perpendicular to the length direction of the conveying track (2), the feeding track (62) is arranged at a discharge port of the conveying belt (61), and the feeding track (62) is provided with a guide chute (621) which is communicated with the sliding chute (21) and is parallel to the conveying track (2); the third driving workpiece is used for conveying the shell (101) entering the material guide groove (621) into the sliding groove (21).