CN114290143A - High-precision high-manganese steel composite steel conical plate preparation production line - Google Patents
High-precision high-manganese steel composite steel conical plate preparation production line Download PDFInfo
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- CN114290143A CN114290143A CN202210064706.9A CN202210064706A CN114290143A CN 114290143 A CN114290143 A CN 114290143A CN 202210064706 A CN202210064706 A CN 202210064706A CN 114290143 A CN114290143 A CN 114290143A
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Abstract
The invention discloses a high-precision high-manganese steel composite steel conical plate preparation production line which comprises a base, a horizontal adjusting mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein the horizontal adjusting mechanism, the height adjusting mechanism and the clamping mechanism are fixedly connected with the top of the base; the horizontal adjusting mechanism comprises a first motor and a supporting block, a first screw rod is fixedly connected to the output end of the first motor, a threaded sleeve is sleeved at one end of the first screw rod in a penetrating mode through the supporting block and in a threaded mode, a supporting plate is fixedly connected to one end, far away from the first screw rod, of the threaded sleeve, a sliding groove corresponding to the supporting plate is arranged at the top of the base, a sliding rod is fixedly connected to the inside of the sliding groove, and a penetrating port corresponding to the sliding rod is arranged on the supporting plate. According to the invention, the conical plate polishing mechanism in the production line can be freely adjusted according to the size of the conical plate through the horizontal adjusting mechanism and the height adjusting mechanism, so that the production efficiency of the conical plate is improved.
Description
Technical Field
The invention relates to the technical field of conical plate production lines, in particular to a high-precision high-manganese steel composite steel conical plate preparation production line.
Background
The liners used on cone crushers need to have high wear resistance and high toughness. Generally, the lining plate of the crusher is selected from imported products with high service life or domestic products with lower service life according to different crushed materials. Therefore, in recent years, the technicians in the field provide more proposals in terms of materials for prolonging the service life of the lining plate, such as increasing the content of chromium and manganese or mainly using high manganese steel, adding trace elements into the high manganese steel, and the like.
The high manganese steel has strong work hardening capacity, the surface of a high manganese steel part is gradually abraded and deformed in the impact and grinding bearing effect, the high manganese steel part is hardened in a plastic deformation area, and the high manganese steel part has certain abrasion resistance. However, the hardening of these methods is mostly surface effect, and the depth is very shallow (less than 1mm), which can not fully exert the wear-resistant potential of the material.
But the mechanism is comparatively simple to current conical plate production line constitution, and conical plate polishing mechanism in the production line can't freely adjust according to the conical plate size to influence conical plate's production efficiency.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the problems that in the prior art, a conical plate production line is simple in composition mechanism, and a conical plate polishing mechanism in the production line cannot be freely adjusted according to the size of a conical plate, and provides a preparation production line for a high-precision high manganese steel composite steel conical plate.
2. Technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-precision high manganese steel composite steel conical plate preparation production line comprises a base, a horizontal adjusting mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein the horizontal adjusting mechanism, the height adjusting mechanism and the clamping mechanism are fixedly connected with the top of the base;
the horizontal adjusting mechanism comprises a first motor and a supporting block, the output end of the first motor is fixedly connected with a first screw rod, one end of the first screw rod penetrates through the supporting block and is in threaded sleeve connection with a threaded sleeve, one end, far away from the first screw rod, of the threaded sleeve is fixedly connected with a supporting plate, the top of the base is provided with a sliding groove corresponding to the supporting plate, a sliding rod is fixedly connected in the sliding groove, and the supporting plate is provided with a through hole corresponding to the sliding rod;
the height adjusting mechanism comprises a first air cylinder and a mounting plate, the first air cylinder is fixedly connected with the top of the supporting plate, and the output end of the first air cylinder is fixedly connected with the bottom of the mounting plate;
the polishing mechanism comprises a fixed plate and a second cylinder, the fixed plate is rotatably connected with the bottom of the mounting plate through a rotating shaft, two ends of the second cylinder are respectively rotatably connected with the mounting plate and the fixed plate, a fixed groove is formed in the bottom of the fixed plate, a second screw rod is rotatably inserted into the fixed groove, one end of the second screw rod penetrates through the inner wall of the fixed groove and is fixedly connected with a knob, two sliding blocks are symmetrically arranged on the second screw rod in a sleeved mode through threads, vertical plates are fixedly connected to the bottoms of the sliding blocks, and one sides, opposite to the two vertical plates, of the two vertical plates are rotatably connected with polishing rollers;
fixture includes second motor and carousel, the top fixed connection of second motor and base, the output and the carousel fixed connection of second motor, the top fixedly connected with fixed station of carousel, the edge slip of fixed station is inserted and is equipped with a plurality of guide arms, the first splint of one end fixedly connected with of guide arm, the cover is equipped with first spring on the guide arm, the both ends of first spring respectively with first splint and fixed station fixed connection, the top of carousel is encircleed and is equipped with the device groove that corresponds with first splint, device inslot fixedly connected with bracing piece, L type dead lever has been cup jointed in the slip on the bracing piece, L type dead lever passes through the third cylinder with the inner wall in device groove and is connected, the top of L type dead lever is rotated and is connected with the second splint.
Preferably, the bottom of base fixedly connected with a plurality of latch segments, be equipped with the latch port on the latch segment.
Preferably, one end of the first screw rod, which is located in the threaded sleeve, is fixedly connected with a limiting block.
Preferably, the support plate is connected with an inner wall of the chute through a damping bumper.
Preferably, the bottom fixedly connected with pole setting of mounting panel, the fixed cover of backup pad top fixedly connected with, fixed cover is equipped with the sliding opening that corresponds with the pole setting.
Preferably, one end of the fixing plate is fixedly connected with a clamping block, a bolt is slidably inserted into the clamping block, and a plurality of slots corresponding to the bolt are arranged on the knob in an encircling manner.
Preferably, two one side that the riser kept away from mutually all is equipped with the guide way, fixedly connected with montant in the guide way, the guide block has been cup jointed in the slip on the montant, the guide block passes through the connecting rod with the fixed plate and is connected, the both ends of connecting rod rotate with guide block and fixed plate respectively and are connected.
Preferably, the montant is overlapped and is equipped with the second spring, the both ends of second spring respectively with guide block and guide way inner wall fixed connection.
Preferably, the top fixedly connected with of base a plurality of bearing bars of symmetry setting, the top fixedly connected with bearing block of bearing bar, the bottom of carousel is equipped with the annular slide rail that corresponds with the bearing block.
Preferably, a plurality of steel balls are connected in the annular slide rail in a sliding mode, and the edges of the steel balls are in contact with the bearing block.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the invention, the first motor is started to drive the first screw rod to rotate, so that the supporting plate is driven to slide through the threaded sleeve, the horizontal position of the polishing mechanism is adjusted, then the first air cylinder drives the mounting plate to move up and down, the height of the polishing mechanism is adjusted, then the second air cylinder is started to drive the fixing plate to rotate, the angle of the polishing mechanism is adjusted, the top of the conical plate is inserted into the middle of the first clamping plate and the second clamping plate, then the second motor is started to drive the rotary table to rotate, and the inner wall and the outer wall of the conical plate are polished through the polishing roller.
(2) According to the invention, the support plate can be prevented from shaking due to the arrangement of the slide rod, meanwhile, the damping shock absorber can play a certain shock absorption and buffering role on the support plate, meanwhile, the upright rod can prevent the mounting plate from shaking, and the limiting block can prevent the first screw rod from falling off from the threaded sleeve.
(3) According to the invention, the knob can be conveniently fixed through the bolt, the vertical rod, the guide block and the connecting rod are arranged, the vertical plate can be prevented from shaking, and meanwhile, the second spring can play a certain elastic supporting role on the guide block.
(4) According to the invention, the base can be conveniently fixed by the locking block, meanwhile, the bearing rod and the bearing block are arranged, the turntable can be prevented from shaking, and the steel balls can reduce the friction between the bearing block and the inner wall of the annular slide rail.
(5) According to the conical plate polishing device, the first spring can elastically support the first clamping plate to a certain extent, the supporting rod can prevent the L-shaped fixing rod from shaking, the arc-shaped first clamping plate and the arc-shaped second clamping plate can be conveniently attached to the inner wall of the conical plate, and the conical plate polishing mechanism in a production line can be freely adjusted according to the size of the conical plate through the horizontal adjusting mechanism and the height adjusting mechanism, so that the production efficiency of the conical plate is improved.
Drawings
FIG. 1 is a schematic structural diagram of a preparation production line for a high-precision high manganese steel composite steel conical plate provided by the invention;
FIG. 2 is a schematic view of a top view structure of a turntable of a production line for manufacturing a high-precision high manganese steel composite steel conical plate, which is provided by the invention;
FIG. 3 is a schematic side view of a vertical plate of a production line for manufacturing a high-precision conical plate made of high manganese steel composite steel according to the present invention;
fig. 4 is a schematic structural view of a portion a of fig. 1.
In the figure: the device comprises a base 1, a first motor 2, a support block 3, a first screw rod 4, a thread bush 5, a support plate 6, a sliding groove 7, a sliding rod 8, a first air cylinder 9, a mounting plate 10, a fixing plate 11, a second air cylinder 12, a rotating shaft 13, a fixing groove 14, a second screw rod 15, a knob 16, a sliding block 17, a vertical plate 18, a grinding roller 19, a second motor 20, a rotating disc 21, a fixing table 22, a guide rod 23, a first clamping plate 24, a first spring 25, a device groove 26, a support rod 27, a fixed rod 28L, a third air cylinder 29, a second clamping plate 30, a locking block 31, a limiting block 32, a damping shock absorber 33, a vertical rod 34, a clamping block 35, a bolt 36, a guide groove 37, a vertical rod 38, a guide block 39, a connecting rod 40, a second spring 41, a bearing rod 42, a bearing rod 43, a bearing fixing sleeve 44 and a steel ball 45.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1-4, a high-precision high manganese steel composite steel conical plate preparation production line comprises a base 1, a horizontal adjusting mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, wherein the horizontal adjusting mechanism, the height adjusting mechanism and the clamping mechanism are all fixedly connected with the top of the base 1, a plurality of locking blocks 31 are fixedly connected with the bottom of the base 1, and locking ports are formed in the locking blocks 31 so as to conveniently fix the base 1;
in the invention, the horizontal adjusting mechanism comprises a first motor 2 and a supporting block 3, the output end of the first motor 2 is fixedly connected with a first screw rod 4, used for driving the threaded sleeve 5 to move horizontally, one end of the first screw 4 penetrates through the supporting block 3 and is sleeved with the threaded sleeve 5 in a threaded manner, used for driving the supporting plate 6 to move horizontally, the end of the first screw rod 4 positioned in the threaded sleeve 5 is fixedly connected with a limiting block 32 to prevent the first screw rod 4 from falling off from the threaded sleeve 5, the end of the threaded sleeve 5 far away from the first screw rod 4 is fixedly connected with the supporting plate 6, used for supporting the mounting plate 10, the top of the base 1 is provided with a chute 7 corresponding to the support plate 6, the support plate 6 is connected with the inner wall of the chute 7 through a damping shock absorber 33, the shock absorption and buffering function is achieved for the support plate 6, a sliding rod 8 is fixedly connected in the sliding groove 7, and a through hole corresponding to the sliding rod 8 is formed in the support plate 6;
in the invention, the height adjusting mechanism comprises a first air cylinder 9 and a mounting plate 10, wherein the first air cylinder 9 is fixedly connected with the top of the supporting plate 6 and used for adjusting the height of the mounting plate 10, the output end of the first air cylinder 9 is fixedly connected with the bottom of the mounting plate 10, the bottom of the mounting plate 10 is fixedly connected with a vertical rod 34 and used for supporting the mounting plate 10, the top of the supporting plate 6 is fixedly connected with a fixed sleeve 45, and the fixed sleeve 45 is provided with a sliding opening corresponding to the vertical rod 34;
the polishing mechanism comprises a fixing plate 11 and a second cylinder 12, wherein the fixing plate 11 is rotatably connected with the bottom of an installation plate 10 through a rotating shaft 13 and used for driving the fixing plate 11 to rotate, two ends of the second cylinder 12 are respectively rotatably connected with the installation plate 10 and the fixing plate 11, a fixing groove 14 is formed in the bottom of the fixing plate 11, a second screw 15 is rotatably inserted into the fixing groove 14 and used for driving a vertical plate 18 to move, one end of the second screw 15 penetrates through the inner wall of the fixing groove 14 and is fixedly connected with a knob 16, one end of the fixing plate 11 is fixedly connected with a clamping block 35 and used for arranging a bolt 36, a bolt 36 is slidably inserted into the clamping block 35 and used for fixing the knob 16, and a plurality of inserting grooves corresponding to the bolt 36 are formed in the knob 16 in a surrounding mode;
according to the invention, two sliding blocks 17 are symmetrically arranged on a second screw 15 in a sleeved mode through threads, the bottom of each sliding block 17 is fixedly connected with a vertical plate 18 for supporting a grinding roller 19, one opposite side of each vertical plate 18 is rotatably connected with the grinding roller 19 for grinding a conical plate, one side, far away from each vertical plate 18, of each vertical plate 18 is provided with a guide groove 37, a vertical rod 38 is fixedly connected in each guide groove 37, a guide block 39 is sleeved on each vertical rod 38 in a sliding mode and used for supporting a connecting rod 40, each guide block 39 is connected with a fixed plate 11 through the connecting rod 40 and used for supporting the corresponding vertical plate 18, two ends of each connecting rod 40 are respectively rotatably connected with the corresponding guide block 39 and the corresponding fixed plate 11, a second spring 41 is sleeved on each vertical rod 38, two ends of each second spring 41 are respectively fixedly connected with the inner walls of the corresponding guide block 39 and the corresponding guide groove 37, and plays a certain elastic support for each guide block 39;
according to the invention, the clamping mechanism comprises a second motor 20 and a rotary table 21, the second motor 20 is fixedly connected with the top of the base 1, the output end of the second motor 20 is fixedly connected with the rotary table 21 and is used for driving the rotary table 21 to rotate, the top of the base 1 is fixedly connected with a plurality of symmetrically arranged bearing rods 42 and is used for supporting the rotary table 21, the top of each bearing rod 42 is fixedly connected with a bearing block 43, the bottom of the rotary table 21 is provided with an annular slide rail corresponding to the bearing block 43, a plurality of steel balls 44 are slidably connected in the annular slide rail, the edges of the steel balls 44 are in contact with the bearing blocks 43, and the friction force between the bearing blocks 43 and the inner wall of the annular slide rail is reduced;
in the invention, the top of the rotary table 21 is fixedly connected with a fixed table 22 for arranging a guide rod 23, the edge of the fixed table 22 is inserted with a plurality of guide rods 23 in a sliding way, one end of each guide rod 23 is fixedly connected with a first clamping plate 24, the guide rod 23 is sleeved with a first spring 25, two ends of each first spring 25 are respectively fixedly connected with the first clamping plate 24 and the fixed table 22, the first clamping plate 24 is supported with certain elasticity, the top of the rotary table 21 is provided with a device groove 26 corresponding to the first clamping plate 24 in a surrounding way, a supporting rod 27 is fixedly connected in the device groove 26, used for supporting an L-shaped fixed rod 28, the L-shaped fixed rod 28 is sleeved on the supporting rod 27 in a sliding way, for supporting the second jaw 30, an L-shaped fixing bar 28 is connected to the inner wall of the device groove 26 by a third cylinder 29, the second clamping plate 30 is used for driving the second clamping plate 30 to move, and the second clamping plate 30 is rotatably connected to the top of the L-shaped fixing rod 28 and used for fixing the conical plate.
According to the invention, the first motor 2 is started to drive the first screw rod 4 to rotate, so that the supporting plate 6 is driven to slide through the threaded sleeve 5, the horizontal position of the polishing mechanism is adjusted, then the first air cylinder 9 drives the mounting plate 10 to move up and down, the height of the polishing mechanism is adjusted, then the second air cylinder 12 is started to drive the fixing plate 11 to rotate, the angle of the polishing mechanism is adjusted, the top of the conical plate is inserted into the middle of the first clamping plate 24 and the second clamping plate 30, then the second motor 20 is started to drive the rotary table 21 to rotate, and the inner wall and the outer wall of the conical plate are polished through the polishing roller 19.
In the invention, the sliding rod 8 is arranged, so that the support plate 6 can be prevented from shaking, the damping shock absorber 33 can play a certain shock absorption and buffering role on the support plate 6, the upright rod 34 can prevent the mounting plate 10 from shaking, and the limiting block 32 can prevent the first screw rod 4 from falling off from the threaded sleeve 5.
In the invention, the knob 16 can be conveniently fixed through the bolt 36, the vertical rod 38, the guide block 39 and the connecting rod 40 can prevent the vertical plate 18 from shaking, and the second spring 41 can elastically support the guide block 39 to a certain extent.
In the invention, the locking block 31 is arranged to conveniently fix the base 1, meanwhile, the bearing rod 42 and the bearing block 43 are arranged to prevent the turntable 21 from shaking, and the steel balls 44 can reduce the friction between the bearing block 43 and the inner wall of the annular slide rail.
In the invention, the first spring 25 can elastically support the first clamping plate 24 to a certain extent, the support rod 27 can prevent the L-shaped fixing rod 28 from shaking, and the arc-shaped first clamping plate 24 and the arc-shaped second clamping plate 30 can be conveniently attached to the inner wall of the conical plate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A high-precision high manganese steel composite steel conical plate preparation production line comprises a base (1), a horizontal adjusting mechanism, a height adjusting mechanism, a polishing mechanism and a clamping mechanism, and is characterized in that the horizontal adjusting mechanism, the height adjusting mechanism and the clamping mechanism are fixedly connected with the top of the base (1);
the horizontal adjusting mechanism comprises a first motor (2) and a supporting block (3), the output end of the first motor (2) is fixedly connected with a first screw (4), one end of the first screw (4) penetrates through the supporting block (3) and is in threaded sleeve connection with a threaded sleeve (5), one end, far away from the first screw (4), of the threaded sleeve (5) is fixedly connected with a supporting plate (6), the top of the base (1) is provided with a sliding groove (7) corresponding to the supporting plate (6), a sliding rod (8) is fixedly connected in the sliding groove (7), and a through hole corresponding to the sliding rod (8) is formed in the supporting plate (6);
the height adjusting mechanism comprises a first air cylinder (9) and a mounting plate (10), the first air cylinder (9) is fixedly connected with the top of the supporting plate (6), and the output end of the first air cylinder (9) is fixedly connected with the bottom of the mounting plate (10);
the polishing mechanism comprises a fixed plate (11) and a second cylinder (12), the fixed plate (11) is rotatably connected with the bottom of the mounting plate (10) through a rotating shaft (13), two ends of the second cylinder (12) are respectively rotatably connected with the mounting plate (10) and the fixed plate (11), a fixed groove (14) is formed in the bottom of the fixed plate (11), a second screw (15) is rotatably inserted into the fixed groove (14), one end of the second screw (15) penetrates through the inner wall of the fixed groove (14) and is fixedly connected with a knob (16), two sliding blocks (17) are symmetrically arranged on the second screw (15) in a sleeved mode through threads, vertical plates (18) are fixedly connected to the bottoms of the sliding blocks (17), and a polishing roller (19) is rotatably connected to one opposite sides of the two vertical plates (18);
the clamping mechanism comprises a second motor (20) and a rotary table (21), the second motor (20) is fixedly connected with the top of the base (1), the output end of the second motor (20) is fixedly connected with the rotary table (21), the top of the rotary table (21) is fixedly connected with a fixed table (22), a plurality of guide rods (23) are slidably inserted into the edge of the fixed table (22), one ends of the guide rods (23) are fixedly connected with a first clamping plate (24), a first spring (25) is sleeved on the guide rods (23), two ends of the first spring (25) are respectively fixedly connected with the first clamping plate (24) and the fixed table (22), the top of the rotary table (21) is encircled by a device groove (26) corresponding to the first clamping plate (24), a supporting rod (27) is fixedly connected with the device groove (26), and an L-shaped fixing rod (28) is slidably sleeved on the supporting rod (27), the L-shaped fixing rod (28) is connected with the inner wall of the device groove (26) through a third air cylinder (29), and the top of the L-shaped fixing rod (28) is rotatably connected with a second clamping plate (30).
2. The production line for the high-precision high manganese steel composite steel conical plate according to claim 1, characterized in that a plurality of locking blocks (31) are fixedly connected to the bottom of the base (1), and locking ports are arranged on the locking blocks (31).
3. The production line for the high-precision high-manganese steel composite steel conical plate as claimed in claim 1, wherein a limit block (32) is fixedly connected to one end of the first screw (4) located in the threaded sleeve (5).
4. The manufacturing line for the high-precision high manganese steel composite steel conical plate according to claim 1, characterized in that the supporting plate (6) is connected with the inner wall of the chute (7) through a damping shock absorber (33).
5. The production line for the high-precision high-manganese steel composite steel conical plate as claimed in claim 1, wherein the bottom of the mounting plate (10) is fixedly connected with an upright (34), the top of the supporting plate (6) is fixedly connected with a fixing sleeve (45), and the fixing sleeve (45) is provided with a sliding opening corresponding to the upright (34).
6. The production line for the high-precision high-manganese steel composite steel conical plate as claimed in claim 1, wherein a fixture block (35) is fixedly connected to one end of the fixing plate (11), a plug pin (36) is slidably inserted into the fixture block (35), and a plurality of slots corresponding to the plug pin (36) are circumferentially arranged on the knob (16).
7. The production line for the high-precision high-manganese steel composite steel conical plate according to claim 1 is characterized in that guide grooves (37) are formed in the two sides, away from each other, of the vertical plates (18), vertical rods (38) are fixedly connected into the guide grooves (37), guide blocks (39) are sleeved on the vertical rods (38) in a sliding mode, the guide blocks (39) are connected with the fixing plate (11) through connecting rods (40), and two ends of each connecting rod (40) are rotatably connected with the guide blocks (39) and the fixing plate (11) respectively.
8. The production line for the high-precision high-manganese steel composite steel conical plate as claimed in claim 7, wherein a second spring (41) is sleeved on the vertical rod (38), and two ends of the second spring (41) are fixedly connected with the guide block (39) and the inner wall of the guide groove (37) respectively.
9. The production line for the high-precision high-manganese steel composite steel conical plate according to claim 1 is characterized in that a plurality of symmetrically arranged bearing rods (42) are fixedly connected to the top of the base (1), bearing blocks (43) are fixedly connected to the tops of the bearing rods (42), and annular sliding rails corresponding to the bearing blocks (43) are arranged at the bottom of the rotary table (21).
10. The production line for the high-precision high-manganese steel composite steel conical plate according to claim 9, wherein a plurality of steel balls (44) are slidably connected in the annular slide rail, and the edges of the steel balls (44) are in contact with a bearing block (43).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210064706.9A CN114290143A (en) | 2022-01-20 | 2022-01-20 | High-precision high-manganese steel composite steel conical plate preparation production line |
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| CN202210064706.9A CN114290143A (en) | 2022-01-20 | 2022-01-20 | High-precision high-manganese steel composite steel conical plate preparation production line |
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| CN115446540A (en) * | 2022-10-10 | 2022-12-09 | 广东南奥交通设备有限公司 | Inter-city motor car body side wall welding tool and installation method |
| CN115781478A (en) * | 2023-02-07 | 2023-03-14 | 四川科达节能技术有限公司 | Black body element polishing and spraying equipment and polishing and spraying method |
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| CN213034264U (en) * | 2020-08-26 | 2021-04-23 | 重庆润远管业有限公司 | Epoxy pipe corner grinding device |
| CN215092795U (en) * | 2021-03-10 | 2021-12-10 | 马鞍山市文华液压成套设备制造有限责任公司 | Quick grinding device of steel |
| CN215092266U (en) * | 2021-07-29 | 2021-12-10 | 湖北致远通机电有限责任公司 | Processing and positioning device for male die positioning plate |
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| CN115446540A (en) * | 2022-10-10 | 2022-12-09 | 广东南奥交通设备有限公司 | Inter-city motor car body side wall welding tool and installation method |
| CN115446540B (en) * | 2022-10-10 | 2023-08-08 | 广东南奥交通设备有限公司 | Inter-city motor car body side wall welding tool and installation method |
| CN115781478A (en) * | 2023-02-07 | 2023-03-14 | 四川科达节能技术有限公司 | Black body element polishing and spraying equipment and polishing and spraying method |
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