CN213258302U - Piston ring groove processingequipment - Google Patents

Piston ring groove processingequipment Download PDF

Info

Publication number
CN213258302U
CN213258302U CN202022131649.0U CN202022131649U CN213258302U CN 213258302 U CN213258302 U CN 213258302U CN 202022131649 U CN202022131649 U CN 202022131649U CN 213258302 U CN213258302 U CN 213258302U
Authority
CN
China
Prior art keywords
rotating shaft
piston
hydraulic cylinder
base
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202022131649.0U
Other languages
Chinese (zh)
Inventor
王欣
葛春青
侯玉斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Jinhang New Energy Equipment Co ltd
Original Assignee
Dalian Jinhang New Energy Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Jinhang New Energy Equipment Co ltd filed Critical Dalian Jinhang New Energy Equipment Co ltd
Priority to CN202022131649.0U priority Critical patent/CN213258302U/en
Application granted granted Critical
Publication of CN213258302U publication Critical patent/CN213258302U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Jigs For Machine Tools (AREA)

Abstract

The utility model relates to the technical field of metal processing equipment, in particular to a piston ring-shaped groove processing device which improves the processing stability; the processing efficiency is improved; the cooling efficiency is improved; the safety is improved; the utilization rate of the material is improved; the cutting machine comprises a machine case, a first motor, a first rotating shaft, a belt, a base, a piston, a longitudinal sliding block, a longitudinal support and a blade, wherein the machine case is in a square tube shape formed by welding 4 steel plates, a plurality of groove positions are formed in a plate on the lower side of the machine case, the first motor is installed on the outer side of the machine case, and the first motor is driven by the belt and the first rotating shaft; the fixture on the base is replaced by an upper bulge which accords with the internal characteristics of the piston; the machine also comprises a feeding area, a clamp, a first shaft, a second rotating shaft sleeve, a gear, a second motor, a supporting block, a second rotating shaft, a second hydraulic cylinder and a discharging area, wherein the feeding area is arranged on a lower plate of the machine case.

Description

Piston ring groove processingequipment
Technical Field
The utility model relates to a technical field of metal processing equipment especially relates to a piston ring groove processingequipment.
Background
A piston ring groove processing device is an auxiliary device for processing a ring groove for a piston, and is widely used in the field of metal processing equipment; the existing piston ring-shaped groove processing device comprises a case, a first motor, a first rotating shaft, a belt, a base, a piston, a longitudinal sliding block, a longitudinal support and a blade, wherein the case is in a square tube shape formed by welding 4 steel plates, a plurality of groove positions are arranged on a plate at the lower side of the case, the first motor is arranged at the outer side of the case, the first motor is used for transmitting through the belt and the first rotating shaft, the base is arranged on the first rotating shaft and is concentric with the first rotating shaft, a clamp is arranged on the base, the piston is arranged on the base and is clamped through the clamp, the longitudinal support is arranged on the groove position of a lower plate of the case, the longitudinal support is positioned at one side of the base, the longitudinal support can transversely move through a hydraulic cylinder, the longitudinal sliding block is arranged on the longitudinal support, the longitudinal sliding block can longitudinally move on the longitudinal; when the existing piston ring groove processing device is used, firstly, a piston is installed on a base and clamped by a clamp, then a first motor is started, the first motor drives a first rotating shaft through a belt, the base and the piston rotate along with the rotation of the first rotating shaft, then a blade on a longitudinal sliding block moves through a transverse hydraulic cylinder and a longitudinal hydraulic cylinder, then the rotating piston is processed by the blade, and the processing of a ring groove on the piston is completed; the existing piston ring groove processing device is found in use that a piston is arranged on a base through a clamp, the clamp needs to be manually arranged every time, so that the clamping degree of the piston is different, the processing deviation of the ring groove of the piston is larger, and the processing precision is reduced; and after the machining is completed, the piston is disassembled and then a new piston is installed, resulting in poor efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a processing stability is improved; the processing efficiency is improved; the piston ring-shaped groove processing device improves safety.
The utility model relates to a piston ring groove processing device, which comprises a machine case, a first motor, a first rotating shaft, a belt, a base, a piston, a longitudinal slide block, a longitudinal support and a blade, wherein the machine case is in a square tube shape welded by 4 steel plates, a plurality of groove positions are arranged on a plate at the lower side of the machine case, the first motor is arranged at the outer side of the machine case and is driven by the belt and the first rotating shaft, the base is arranged on the first rotating shaft and is concentric with the first rotating shaft, a clamp is arranged on the base, the piston is arranged on the base, and is clamped by a clamp, a longitudinal support is arranged on a slot position of a lower plate of the chassis, the longitudinal support is positioned at one side of the base, the longitudinal support can move transversely through a hydraulic cylinder, the longitudinal sliding block is arranged on the longitudinal support, the longitudinal sliding block can move longitudinally on the longitudinal support through the hydraulic cylinder, and the blade is arranged on the longitudinal sliding block; the clamping device comprises a base, a pressing block and a first hydraulic cylinder, wherein a clamp on the base is replaced by an upper bulge which accords with the internal characteristics of a piston, the pressing block is installed on a shaft extending out of the first hydraulic cylinder through a bearing, the first hydraulic cylinder is installed on an upper plate of a case, and soft rubber is arranged below the pressing block; also comprises a feeding area, a clamp, a first shaft, a second rotating shaft sleeve, a gear, a second motor, a supporting block, a second rotating shaft, a second hydraulic cylinder and a discharging area, wherein the feeding area is arranged on the lower plate of the case, a conveying belt is arranged at the lower side of the feeding area, two groups of clamps are respectively arranged at two sides of the first shaft, the clamps of the two groups of clamps can be contracted, the first shaft is arranged on a second rotating shaft sleeve, a gear is arranged above the second rotating shaft sleeve and is in transmission with a second motor through a belt, the second motor is arranged on a supporting block, the supporting block is fixed on an upper plate of the case, the second rotating shaft sleeve is arranged on a second rotating shaft extending out of a second hydraulic cylinder through a bearing, the second hydraulic cylinder is fixed on a lower plate of the case, and is positioned at the side of the base and the longitudinal support, the discharging area is arranged on the lower plate of the case and is positioned at the other side of the feeding area, and a conveyor belt is arranged below the discharging area.
The utility model discloses a piston ring groove processingequipment still includes the pipe, and the pipe mounting is on vertical slider, and the pipe passes through the leather hose and links to each other with the water pump.
The utility model discloses a piston ring groove processingequipment still includes control panel, and control panel installs in quick-witted case top, and control panel connects and controls it through the electricity pneumatic cylinder, pipe, first pneumatic cylinder, second motor, second pneumatic cylinder and the conveyer belt of electricity and the pneumatic cylinder of first motor, vertical support below.
The utility model discloses a piston ring groove processingequipment still includes bushing, baffle and collector, and the bushing is installed in the below of quick-witted case, and the bushing is provided with a plurality of hole sites, and the below of bushing is provided with the baffle, and the below at the baffle is installed to the collector.
The utility model discloses a piston ring groove processingequipment still includes anchor clamps, and rubber is chooseed for use to the anchor clamps material of anchor clamps.
The utility model discloses a piston ring groove processingequipment still includes the base, and the arch of base top can be dismantled.
Compared with the prior art, the beneficial effects of the utility model are that: the piston is arranged on the bulge of the base, the soft rubber below the pressing block is pressed on the piston through the lifting of the first hydraulic cylinder, so that the piston is fixed, and the stability of the piston is improved through the matching of the pressing block and the base, so that the processing stability and accuracy are improved; the piston enters the lower part of the clamp through the conveying belt below the feeding area, the second rotating shaft of the second hydraulic cylinder descends, then the clamp contracts to clamp the piston, then the second rotating shaft of the second hydraulic cylinder ascends, then the second motor is opened, the second motor rotates along with the rotation of the gear through the belt transmission gear, the clamp rotates along with the second rotating shaft sleeve through the first shaft, the clamp clamps the piston to rotate to the upper part of the base, the second motor stops, the second rotating shaft of the second hydraulic cylinder descends, then the clamp loosens the piston, the piston is fixed through the bulge on the base, then the second rotating shaft of the second hydraulic cylinder ascends, the second motor starts, the clamp rotates to the upper part of the discharging area, after the piston is machined, the clamp rotates to the upper part of the piston, the piston ascends and descends through the second rotating shaft of the second hydraulic cylinder, the piston which is clamped by the contraction of the clamp rotates to the upper part of the discharging, the piston is output along with the conveyer belt in the discharging area, and the piston is installed through automatic equipment, so that the efficiency, the safety and the stability are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a partially enlarged structural view of a longitudinal slide and a longitudinal support;
FIG. 3 is an enlarged partial schematic view of the base and piston;
reference numerals: 1. a chassis; 2. a first motor; 3. a first rotating shaft; 4. a belt; 5. a base; 6. a piston; 7. a longitudinal slide block; 8. a longitudinal support; 9. a blade; 10. a conduit; 11. briquetting; 12. a first hydraulic cylinder; 13. a feed zone; 14. a clamp; 15. a first shaft; 16. a second spindle sleeve; 17. a gear; 18. a second motor; 19. a support block; 20. a second rotating shaft; 21. a second hydraulic cylinder; 22. a discharge zone; 23. a control panel; 24. a bushing; 25. a baffle plate; 26. a collector.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the piston ring-shaped groove processing device of the present invention comprises a machine case 1, a first motor 2, a first rotating shaft 3, a belt 4, a base 5, a piston 6, a longitudinal sliding block 7, a longitudinal support 8 and a blade 9, wherein the machine case 1 is formed by welding 4 steel plates into a square tube shape, a plurality of groove positions are arranged on a plate at the lower side of the machine case 1, the first motor 2 is installed at the outer side of the machine case 1, the first motor 2 is driven by the belt 4 and the first rotating shaft 3, the base 5 is installed on the first rotating shaft 3 and is concentric with the first rotating shaft 3, a clamp is arranged on the base 5, the piston 6 is installed on the base 5 and is clamped by the clamp, the longitudinal support 8 is installed on the groove position of the lower plate of the machine case 1, the longitudinal support 8 is located at one side of the base 5, and the longitudinal support 8 can move transversely by a hydraulic cylinder, the longitudinal sliding block 7 can move longitudinally on the longitudinal bracket 8 through a hydraulic cylinder, and the blade 9 is arranged on the longitudinal sliding block 7; the device comprises a base 5, a pressing block 11 and a first hydraulic cylinder 12, wherein a clamp on the base 5 is replaced by an upper bulge which accords with the internal characteristics of a piston 6, the pressing block 11 is installed on a shaft extending out of the first hydraulic cylinder 12 through a bearing, the first hydraulic cylinder 12 is installed on an upper plate of a case 1, and soft rubber is arranged below the pressing block 11; the automatic feeding device further comprises a feeding area 13, clamps 14, a first shaft 15, a second rotating shaft sleeve 16, a gear 17, a second motor 18, a supporting block 19, a second rotating shaft 20, a second hydraulic cylinder 21 and a discharging area 22, wherein the feeding area 13 is installed on a lower plate of the case 1, a conveying belt is arranged on the lower side of the feeding area 13, the two sets of clamps 14 are respectively installed on two sides of the first shaft 15, clamps of the two sets of clamps 14 can be contracted, the first shaft 15 is installed on the second rotating shaft sleeve 16, the gear 17 is arranged above the second rotating shaft sleeve 16, the gear 17 is in transmission with the second motor 18 through the belt, the second motor 18 is installed on the supporting block 19, the supporting block 19 is fixed on an upper plate of the case 1, the second rotating shaft sleeve 16 is installed on the second rotating shaft 20 extending out of the second hydraulic cylinder 21 through a bearing, the second hydraulic cylinder 21 is fixed on the lower plate of the case, the discharging area 22 is arranged on the lower plate of the case 1 and is positioned at the other side of the feeding area 13, and a conveyor belt is arranged below the discharging area 22; the piston 6 is arranged on the bulge of the base 5, the soft rubber below the pressing block 11 is pressed on the piston 6 through the lifting of the first hydraulic cylinder 12, so that the piston 6 is fixed, and the stability of the piston 6 is improved through the matching of the pressing block 11 and the base 5, so that the processing stability and accuracy are improved; the piston 6 enters the lower part of the clamp 14 through the conveyor belt below the feeding area 13, the second rotating shaft 20 of the second hydraulic cylinder 21 descends, then the clamp 14 contracts to clamp the piston 6, then the second rotating shaft 20 of the second hydraulic cylinder 21 rises, then the second motor 18 is turned on, the second motor 18 passes through the belt transmission gear 17, the second rotating shaft sleeve 16 rotates along with the rotation of the gear 17, the clamp 14 rotates along with the second rotating shaft sleeve 16 through the first shaft 15, the clamp 14 clamps the piston 6 to rotate to the upper part of the base 5, the second motor 18 stops, the second rotating shaft 20 of the second hydraulic cylinder 21 descends, then the clamp 14 releases the piston 6, the piston 6 is fixed through the bulge on the base 5, then the second rotating shaft 20 of the second hydraulic cylinder 21 rises, the second motor 18 starts, the clamp 14 rotates to the upper part of the discharging area 22, after the piston 6 is machined, the clamp 14 rotates to the upper part of the piston 6, the second rotating shaft 20 of the second hydraulic cylinder 21 is lifted, the piston 6 which is well shrunk and clamped by the clamp 14 is rotated to the upper side of the discharging area 22 and is put down, the piston 6 is output along with the conveying belt of the discharging area 22, the piston 6 is installed through automatic equipment, and the efficiency, the safety and the stability are improved.
The utility model discloses a piston ring groove processing device, which also comprises a guide pipe 10, wherein the guide pipe 10 is arranged on the longitudinal slide block 7, and the guide pipe 10 is connected with a water pump through a leather hose; when the annular groove is machined, cooling liquid is sprayed out of the guide pipe 10 through the water pump and is accurately sprayed to the contact position of the blade 9 and the piston 6, the spraying accuracy of the cooling liquid is improved, and the cooling efficiency of the contact position of the blade 9 and the piston 6 is improved.
The utility model discloses a piston ring groove processingequipment still includes control panel 23, and control panel 23 installs above quick-witted case 1, and control panel 23 connects and controls it through the electricity with first motor 2, the pneumatic cylinder of vertical support 8, the pneumatic cylinder below vertical support 8, pipe 10, first pneumatic cylinder 12, second motor 18, second pneumatic cylinder 21 and conveyer belt; through the automation program, the whole equipment is controlled, the workpiece machining efficiency and accuracy are improved, and potential safety hazards are reduced.
The utility model discloses a piston ring groove processingequipment still includes bushing 24, baffle 25 and collector 26, bushing 24 installs in the below of quick-witted case 1, bushing 24 is provided with a plurality of hole sites, the below of bushing 24 is provided with baffle 25, collector 26 installs in the below of baffle 25; the processing dropped waste and the used cooling liquid are filtered through the hole sites of the bushing plate 24, the cooling liquid flows into the collector 26 along the baffle plate 25, the waste is left on the bushing plate 24, the waste and the cooling liquid can be effectively recycled, and the material utilization rate and the environmental protection performance are improved.
The utility model discloses a piston ring groove processing device, which also comprises a clamp 14, wherein the clamp material of the clamp 14 is rubber; the clamp of the clamp 14 is made of rubber materials, so that the contact area between the clamp and the piston 6 can be increased, the piston 6 can be clamped better, and the stability is improved.
The utility model discloses a piston ring groove processing device, which also comprises a base 5, wherein the bulge above the base 5 can be detached; the arch of base 5 top can be dismantled, changes the arch of base 5 top according to the inside die cavity of piston 6, has improved the variety of processing.
The utility model discloses a piston ring groove processingequipment, it is at work, at first the piston 6 passes through the conveyer belt below the feeding zone 13, get into the below of anchor clamps 14, the second pivot 20 of second pneumatic cylinder 21 descends, then anchor clamps 14 shrink and press from both sides tight piston 6, later the second pivot 20 of second pneumatic cylinder 21 risees, later open second motor 18, second motor 18 passes through belt drive gear 17, second pivot cover 16 rotates along with the rotation of gear 17, anchor clamps 14 rotates along with second pivot cover 16 through first axle 15, anchor clamps 14 presss from both sides piston 6 and rotates to the top of base 5, second motor 18 stops, the second pivot 20 of second pneumatic cylinder 21 descends, later anchor clamps 14 loosen piston 6, piston 6 passes through the protruding fixed on base 5, the soft rubber of briquetting 11 below passes through the lift of first pneumatic cylinder 12, press on piston 6, then open first motor 2, the first motor 2 drives the first rotating shaft 3 through the belt 4, the base 5 and the piston 6 rotate along with the rotation of the first rotating shaft 3, then the blade 9 on the longitudinal sliding block 7 moves through the transverse and longitudinal hydraulic cylinders, then the blade 9 processes the rotating piston 6, meanwhile, the guide pipe 10 sprays cooling liquid to cool a processing part, and the annular groove processing on the piston 6 is completed.
The installation mode, the connection mode or the arrangement mode of the piston annular groove processing device of the utility model are common mechanical modes, and the piston annular groove processing device can be implemented as long as the beneficial effects can be achieved; the utility model discloses a piston ring groove processingequipment's first motor 2, first pneumatic cylinder 12, second motor 18, second pneumatic cylinder 21, pneumatic cylinder are purchase on the market, and this industry technical staff only need install and operate according to its subsidiary operating specification can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A piston ring-shaped groove processing device comprises a case (1), a first motor (2), a first rotating shaft (3), a belt (4), a base (5), a piston (6), a longitudinal sliding block (7), a longitudinal support (8) and a blade (9), wherein the case (1) is in a square tube shape formed by welding 4 steel plates, a plurality of groove positions are arranged on a plate at the lower side of the case (1), the first motor (2) is arranged at the outer side of the case (1), the first motor (2) is driven by the belt (4) and the first rotating shaft (3), the base (5) is arranged on the first rotating shaft (3) and is concentric with the first rotating shaft (3), a clamp is arranged on the base (5), the piston (6) is arranged on the base (5) and is clamped by the clamp, the longitudinal support (8) is arranged on the groove position of the lower plate of the case (1), the longitudinal support (8) is positioned at one side of the base (5), the longitudinal support (8) can move transversely through a hydraulic cylinder, the longitudinal sliding block (7) is installed on the longitudinal support (8), the longitudinal sliding block (7) can move longitudinally on the longitudinal support (8) through the hydraulic cylinder, and the blade (9) is installed on the longitudinal sliding block (7); the device is characterized by further comprising a base (5), a pressing block (11) and a first hydraulic cylinder (12), wherein a clamp on the base (5) is replaced by an upper bulge which accords with the internal characteristics of the piston (6), the pressing block (11) is installed on a shaft extending out of the first hydraulic cylinder (12) through a bearing, the first hydraulic cylinder (12) is installed on an upper plate of the case (1), and soft rubber is arranged below the pressing block (11); the automatic feeding device is characterized by further comprising a feeding area (13), clamps (14), a first shaft (15), a second rotating shaft sleeve (16), a gear (17), a second motor (18), a supporting block (19), a second rotating shaft (20), a second hydraulic cylinder (21) and a discharging area (22), wherein the feeding area (13) is installed on a lower plate of the case (1), a conveying belt is arranged on the lower side of the feeding area (13), the two sets of clamps (14) are respectively installed on two sides of the first shaft (15), clamps of the two sets of clamps (14) can be contracted, the first shaft (15) is installed on the second rotating shaft sleeve (16), the gear (17) is arranged above the second rotating shaft sleeve (16), the gear (17) is in transmission with the second motor (18) through a belt, the second motor (18) is installed on the supporting block (19), the supporting block (19) is fixed on an upper plate of the case (1), and the second rotating shaft sleeve (16) is installed on the second rotating shaft (20) extending out of the second hydraulic cylinder (21), the second hydraulic cylinder (21) is fixed on the lower plate of the case (1) and is positioned on the side of the base (5) and the longitudinal support (8), the discharging area (22) is installed on the lower plate of the case (1) and is positioned on the other side of the feeding area (13), and the conveyor belt is arranged below the discharging area (22).
2. A piston ring groove processing device according to claim 1, characterized by further comprising a guide pipe (10), wherein the guide pipe (10) is mounted on the longitudinal slide block (7), and the guide pipe (10) is connected with a water pump through a leather hose.
3. A piston ring groove processing device according to claim 2, characterized by further comprising a control panel (23), wherein the control panel (23) is installed above the machine case (1), and the control panel (23) is electrically connected with and controls the first motor (2), the hydraulic cylinder of the longitudinal support (8), the hydraulic cylinder below the longitudinal support (8), the guide pipe (10), the first hydraulic cylinder (12), the second motor (18), the second hydraulic cylinder (21) and the conveyor belt.
4. A piston ring groove processing device according to claim 3, characterized by further comprising a bushing (24), a baffle (25) and a collector (26), wherein the bushing (24) is installed below the case (1), the bushing (24) is provided with a plurality of hole sites, the baffle (25) is installed below the bushing (24), and the collector (26) is installed below the baffle (25).
5. A piston ring groove machining device according to claim 4, characterized by further comprising a clamp (14), wherein the clamp (14) is made of rubber.
6. A piston ring groove machining device according to claim 5, characterized by further comprising a base (5), wherein the projection above the base (5) is detachable.
CN202022131649.0U 2020-09-25 2020-09-25 Piston ring groove processingequipment Expired - Fee Related CN213258302U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022131649.0U CN213258302U (en) 2020-09-25 2020-09-25 Piston ring groove processingequipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022131649.0U CN213258302U (en) 2020-09-25 2020-09-25 Piston ring groove processingequipment

Publications (1)

Publication Number Publication Date
CN213258302U true CN213258302U (en) 2021-05-25

Family

ID=75945430

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022131649.0U Expired - Fee Related CN213258302U (en) 2020-09-25 2020-09-25 Piston ring groove processingequipment

Country Status (1)

Country Link
CN (1) CN213258302U (en)

Similar Documents

Publication Publication Date Title
CN206230082U (en) A kind of steel-plate cutter
CN214814487U (en) Forging device is used in processing of car plastic spare part mould benevolence
CN112191903A (en) Modular car brake disc fluting processingequipment
CN102513750B (en) Car motor rotor welding machine
CN103817573A (en) Grinding device for electrode cap of spot welding machine
CN213258302U (en) Piston ring groove processingequipment
CN110253351B (en) A hydraulic grinding machine feeding and positioning device
CN108435869B (en) A kind of continous way process for stamping
CN114571233A (en) Automatic tapping machine with multiple holes
CN211614868U (en) Automatic punching, tapping, slotting and cutting integrated machine for gutter
CN218425885U (en) Cutting device is used in wave filter production
CN220051017U (en) Feeding device of numerical control machine tool
CN112643221A (en) Special cutting equipment of multi-functional nodular cast iron
CN214291612U (en) A pump body combined welding fixture
CN213998420U (en) Automatic pipe welding equipment
CN211515751U (en) Positioning and punching device for light steel framework of fabricated building
CN214264037U (en) Modular car brake disc fluting processingequipment
CN211361130U (en) Automatic steel pipe elbow fixing device
CN210359423U (en) Eccentric anchor clamps of quick clamping
CN210997856U (en) Surface grinding machine for producing die
CN210358630U (en) Long shaft part straightening device
CN218695289U (en) Welding machine for metal product processing
CN219463785U (en) Paint spraying device for round block hole type graphite heat exchanger
CN214684375U (en) Multidirectional slotting device for curved surface workpiece
CN220411152U (en) Protective film label transfer machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210525