CN209288718U - A kind of linear cutter pretreatment unit - Google Patents

A kind of linear cutter pretreatment unit Download PDF

Info

Publication number
CN209288718U
CN209288718U CN201920053536.8U CN201920053536U CN209288718U CN 209288718 U CN209288718 U CN 209288718U CN 201920053536 U CN201920053536 U CN 201920053536U CN 209288718 U CN209288718 U CN 209288718U
Authority
CN
China
Prior art keywords
side guard
guard plate
plate
supporting block
plate body
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
CN201920053536.8U
Other languages
Chinese (zh)
Inventor
刘付生
丁亮亮
许聪聪
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.)
Anhui University of Science and Technology
Original Assignee
Anhui University of Science and Technology
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 Anhui University of Science and Technology filed Critical Anhui University of Science and Technology
Priority to CN201920053536.8U priority Critical patent/CN209288718U/en
Application granted granted Critical
Publication of CN209288718U publication Critical patent/CN209288718U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The utility model provides a kind of linear cutter pretreatment unit.Including station, clamping plate, the first side guard plate, the second side guard plate, preheating mechanism, mounting box, supporting mechanism and workpiece polishing mechanism;The surface of the station is symmetrically arranged with two clamping plates, the first side guard plate and the second side guard plate are separately installed on the outside of two clamping plates, preheating mechanism is installed between first side guard plate, the second side guard plate, preheating mechanism can be rotated, the medial surface of preheating mechanism is equipped with mounting box, the internal slide of mounting box is connected with supporting mechanism, and the bottom surface of the supporting mechanism is embedded with workpiece polishing mechanism.Linear cutter pretreatment unit provided by the utility model, while mobile plate body, workpiece polishing mechanism can complete the polishing to workpiece surface, realize that heat treatment, polishing are synchronous and carry out, improve the material property of workpiece.

Description

A kind of linear cutter pretreatment unit
Technical field
The utility model relates to special process apparatus field more particularly to a kind of linear cutter pretreatment units.
Background technique
Electric Discharge Wire-cutting Technology is one kind of the special process, it is different from conventional machining techniques and needs with mechanical force and machine Tool can be cut off, and the processing to material is mainly realized using electric energy;So Electric Discharge Wire-cutting Technology is not by material property Limitation, can process any hardness, intensity, brittle material, critically important status is occupied in machining at this stage.
When carrying out linear cutter to workpiece, due to lacking pretreatment unit preferable for workpiece, so that workpiece Surface can have some burrs, and there is also the defects of material property for inside workpiece, can go out in process in workpiece surface The problems such as existing crackle, deformation.
Therefore, a kind of linear cutter pretreatment unit is proposed regarding to the issue above.
Utility model content
The purpose of this utility model is to provide a kind of wire cuttings that is easy to operate, being heat-treated and be polished simultaneously to add Work pretreatment unit, to solve the above technical problems.
The utility model using following technical scheme in order to solve the above technical problems, realized:
Design a kind of linear cutter pretreatment unit, station;First side guard plate, first side guard plate are installed on The surface of the station, and first side guard plate is located at the outside of the clamping plate;The inner wall of first side guard plate is provided with First sliding groove;Second side guard plate, second side guard plate are symmetrically set with first side guard plate, and described second side is protected Structure is identical between plate and first side guard plate;Preheating mechanism, the preheating mechanism include plate body, connecting column, sliding block and Electrical bar, and the plate body is vertical between first side guard plate, second side guard plate;The bottom surface of the plate body is located at The top of the clamping plate;Connecting column is equipped in the middle part of the two sides of the plate body, and the connecting column is rotatablely connected the sliding block; The sliding block sliding is embedded in the inside of the first sliding groove;The inside of the plate body is equipped with electrical bar;Mounting box, the peace The linear array of mounted box is vertical at the plate body close to the inner wall of the clamping plate;It is sliding that the two sidewalls of the mounting box are provided with second Slot;Supporting mechanism, the supporting mechanism includes supporting block, slide bar and pushes away seat, and supporting block sliding is embedded in the peace The inside of mounted box;The two sidewalls of the supporting block are symmetrically arranged with slide bar, and the sliding bar is through the second sliding slot;Institute The outer end for stating slide bar pushes away seat equipped with described;The extension that seat is pushed away to adjust the supporting block;Workpiece polishing mechanism, it is described Workpiece polishing mechanism is installed on the bottom surface of supporting block, and the workpiece polishing mechanism is to polish to workpiece.
Preferably, U-shaped distribution between first side guard plate, second side guard plate and the plate body, and institute The first side guard plate, second side guard plate and the plate body are stated to light-blocking.
Preferably, the rotational angle of the plate body is 0 ° -90 °, and the top surface of the plate body and first side guard plate, institute State the second side guard plate flush.
Preferably, the distribution length of the supporting block is identical as the maximum spacing of two clamping plates, and the supporting block Longitudinal direction along the plate body is equally spaced.
Preferably, the preheating mechanism further includes handle, and the handle is set to the plate body far from the outer of the clamping plate Wall.
Preferably, the workpiece polishing mechanism includes rotary electric machine, grinding wheel and driving chain, and grinding wheel rotation is set In the interior bottom portion of the supporting block;The bottom surface of the supporting block is stretched in outside the grinding wheel;The rotary electric machine is set to described The inside of supporting block, and the rotary electric machine drives the grinding wheel to rotate by the driving chain.
Preferably, the linear array distribution of the grinding wheel is equipped with several, and the grinding wheel is along the supporting block Bottom surface longitudinal direction distribution;Each grinding wheel is bonded with the driving chain.
Preferably, the grinding wheel includes frosted column and gear, and one end of the frosted column and the supporting block rotate Connection;The other end of the frosted column is equipped with gear, and gear engagement connects the driving chain;The frosted column has three The outer bottom surface for stretching in the supporting block of/a part.
The beneficial effects of the utility model are:
The linear cutter pretreatment unit that the utility model line provides, the first side guard plate, the second side guard plate and plate Body can surround protective barrier in processing, stop light and heat;When being pre-processed, plate body can be rotated to horizontal, then Mobile plate body can carry out the pre-heat treatment to workpiece;Operator can select the suitable number in its top according to the size of workpiece Workpiece polishing mechanism will need the workpiece polishing mechanism polished to remove and is bonded with workpiece, while mobile plate body, beats by supporting mechanism Grinding machine structure can complete the polishing to workpiece surface, realize that heat treatment, polishing are synchronous and carry out, improve the material property of workpiece.
Detailed description of the invention
Fig. 1 is that a kind of structure of preferred embodiment of linear cutter pretreatment unit provided by the utility model is shown It is intended to;
Fig. 2 is first side guard plate, the second side guard plate and preheating mechanism attachment structure schematic diagram of the utility model;
Fig. 3 is the connecting column of the utility model and the structural schematic diagram of sliding block;
Fig. 4 is the mounting box inner connecting structure schematic diagram of the utility model.
Appended drawing reference: 1, station, 2, clamping plate, the 3, first side guard plate, 31, first sliding groove, the 4, second side guard plate, 5, preheating Mechanism, 51, plate body, 52, connecting column, 53, sliding block, 54, electrical bar, 55, handle, 6, mounting box, 61, second sliding slot, 7, support Mechanism, 71, supporting block, 72, slide bar, 73, push away seat, 8, workpiece polishing mechanism, 81, rotary electric machine, 82, grinding wheel, 821, frosted column, 822, gear, 83, driving chain.
Specific embodiment
For the utility model is described in further detail with embodiment with reference to the accompanying drawing.
Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 1 is that linear cutter provided by the utility model is used A kind of structural schematic diagram of preferred embodiment of pretreatment unit;Fig. 2 is first side guard plate, the second side guard plate of the utility model And preheating mechanism attachment structure schematic diagram;Fig. 3 is the connecting column of the utility model and the structural schematic diagram of sliding block;Fig. 4 is this The mounting box inner connecting structure schematic diagram of utility model.Linear cutter pretreatment unit include: station 1, clamping plate 2, First side guard plate 3, the second side guard plate 4, preheating mechanism 5, mounting box 6, supporting mechanism 7 and workpiece polishing mechanism 8;The station 1 Surface be symmetrically arranged with two clamping plates 2, the outside of two clamping plates 2 is separately installed with the first side guard plate 3 and the second side guard plate 4, Preheating mechanism 5 is installed, preheating mechanism 5 can be rotated, the medial surface peace of preheating mechanism 5 between one side guard plate 3, the second side guard plate 4 Equipped with mounting box 6, the internal slide of mounting box 6 is connected with supporting mechanism 7, and the bottom surface of the supporting mechanism 7 is embedded with sander Structure 8.
In the specific implementation process, as shown in Figure 1, station 1;Clamping plate 2, symmetrically sliding is set to the behaviour to the clamping plate 2 Make the surface of platform 1;First side guard plate 3, first side guard plate 3 is installed on the surface of the station 1, and first side is protected Plate 3 is located at the outside of the clamping plate 2;The inner wall of first side guard plate 3 is provided with first sliding groove 31;Second side guard plate 4, described Two side guard plates 4 are symmetrically set with first side guard plate 3, and between second side guard plate 4 and first side guard plate 3 Structure is identical;U-shaped distribution between first side guard plate 3, second side guard plate 4 and the plate body 51, and it is described First side guard plate 3, second side guard plate 4 and the plate body 51 are to light-blocking;First side guard plate 3, the second side guard plate 4 are logical Cross the surface that screw is mounted on station 1, can be blocked by side guard plate and plate body 51 generated in electrical discharge machining it is dazzling Light and heat, clamping plate 2 is to be clamped workpiece.
In the specific implementation process, as shown in Figures 2 and 3, preheating mechanism 5, the preheating mechanism 5 include plate body 51, connect Column 52, sliding block 53 and electrical bar 54 are connect, and the plate body 51 is vertical at first side guard plate 3, second side guard plate 4 Between;The bottom surface of the plate body 51 is located at the top of the clamping plate 2;Connecting column is equipped in the middle part of the two sides of the plate body 51 52, and the connecting column 52 is rotatablely connected the sliding block 53;The sliding block 53 slides the inside for being embedded in the first sliding groove 31; The inside of the plate body 51 is equipped with electrical bar 54;The rotational angle of the plate body 51 is 0 ° -90 °, and the top of the plate body 51 Face and first side guard plate 3,4 flush of the second side guard plate;Plate body 51 can be rotated 90 °, so that it is flat with station 1 Row can translate plate body 51 and carry out the pre-heat treatment to workpiece, so that the material property of inside workpiece changes, add convenient for subsequent Work, electrical bar 54 can heating power make plate body 51 distribute place's heat.
In the specific implementation process, as shown in Figure 1 and Figure 4, mounting box 6, the linear array of the mounting box 6 are vertical at Inner wall of the plate body 51 close to the clamping plate 2;The two sidewalls of the mounting box 6 are provided with second sliding slot 61;Supporting mechanism 7, institute It states supporting mechanism 7 to include supporting block 71, slide bar 72 and push away seat 73, and the sliding of the supporting block 71 is embedded in the mounting box 6 Inside;The two sidewalls of the supporting block 71 are symmetrically arranged with slide bar 72, and the slide bar 72 is slided through the second sliding slot 61;The outer end of the slide bar 72 pushes away seat 73 described in being equipped with;The extension that seat 73 is pushed away to adjust the supporting block 71; The distribution length of the mounting box 6 is identical as the maximum spacing of two clamping plates 2, and the supporting block 71 is along the plate body 51 Longitudinal direction be equally spaced;By the way that multiple mounting boxs 6 are distributed with, and supporting block 71 is mounted in each mounting box 6, it can It allows the operator to adjust 71 numbers of required supporting block according to the width of the workpiece, operator need to only release and workpiece The opposite supporting block 71 in top, remaining supporting block 71 are still stored in mounting box 6, do not use, and realize according to workpiece ruler It is very little, freely adjust polishing area.
In the specific implementation process, as shown in figure 4, workpiece polishing mechanism 8, the workpiece polishing mechanism 8 are installed on the bottom of supporting block 71 Face, and the workpiece polishing mechanism 8 is to polish to workpiece;The workpiece polishing mechanism 8 include rotary electric machine 81, grinding wheel 82 and Driving chain 83, and the rotation of the grinding wheel 82 is set to the interior bottom portion of the supporting block 71;Institute is stretched in outside the grinding wheel 82 State the bottom surface of supporting block 71;The rotary electric machine 81 is set to the inside of the supporting block 71, and the rotary electric machine 81 passes through institute Stating driving chain 83 drives the grinding wheel 82 to rotate;The linear array distribution of the grinding wheel 82 is equipped with several, and institute The bottom surface longitudinal direction that grinding wheel 82 is stated along the supporting block 71 is distributed;Each grinding wheel 82 with the driving chain 83 Fitting;The grinding wheel 82 include frosted column 821 and gear 822, and one end of the frosted column 821 with 71 turns of the supporting block Dynamic connection;The other end of the frosted column 821 is equipped with gear 822, and the engagement of the gear 822 connects the driving chain 83; The frosted column 821 has the bottom surface that the supporting block 71 is stretched in outside one third part;Rotary electric machine 81 passes through driving chain 83 Each gear 822, frosted column 81 is driven to rotate synchronously, the overhanging part of frosted column 81 can be bonded with workpiece surface to be beaten Mill, and linear array is distributed with frosted column 81 and enables to the area coverage of workpiece polishing mechanism 8 wider, workpiece polishing mechanism 8 and workpiece Time of contact it is longer, in the process of moving can to part be polished repeatedly, raising grinding effect,
In the specific implementation process, as shown in Fig. 2, the preheating mechanism 5 further includes handle 55, and the handle 55 is set to Outer wall of the plate body 51 far from the clamping plate 2;Operator can pass through the position of 55 regulation plate body 51 of handle in the outside of machine It sets, so that operation is more convenient.
The working principle of linear cutter pretreatment unit provided by the utility model is as follows:
Original state, the first side guard plate 3, the second side guard plate 4 and the U-shaped distribution of plate body 51, is placed in station 1 for workpiece On, the position of two clamping plates 2 is then adjusted, so that clamping plate 2 carries out clamping limit to workpiece;It holds handle 55 and rotates plate body 51, So that 90 ° of the rotation of plate body 51 is parallel with workpiece, then according to the size of workpiece, selection and the sander at its top relative position Structure 8 works, and pushes what selected workpiece polishing mechanism 8 connected to push away seat 73, so that slide bar 72 moves along second sliding slot 61, so that support Block 71 slides off mounting box 6, when frosted column 821 is bonded with the surface of workpiece, can stop, similarly to beating selected by other Grinding machine structure 8 repeats aforesaid operations;External power supply is connected, the power generation so that electrical bar 54 is powered, heat is shed by plate body 51, high temperature Heat can carry out the pre-heat treatment to workpiece, can improve processing performance, eliminate internal stress and prepare for final heat treatment good Metallographic structure, be convenient for following process, rotary electric machine 81 drives each frosted column 821 to rotate synchronously by driving chain 83;Behaviour Make personnel and moves plate body 51 along first sliding groove 31, so that plate body 51 moves reciprocatingly at the top of workpiece, it so can be to workpiece It is fully warmed-up, frosted column 821 can also sufficiently polish to workpiece surface, remove impurity, burr.
The electric elements occurred in the application external connection power supply and switch when in use.
The ZGB37RG micromotor that micromotor is sold using zhengk flagship store, support circuit can be by businessmans It provides.
Compared with the relevant technologies, linear cutter provided by the utility model pretreatment unit has following beneficial to effect Fruit:
The utility model provides a kind of linear cutter pretreatment unit, the first side guard plate 3, the second side guard plate 4 and Plate body 51 can surround protective barrier in processing, stop light and heat;When being pre-processed, plate body 51 can be rotated to level Shape, the pre-heat treatment can be carried out to workpiece by then moving plate body 51;Operator can select its top to close according to the size of workpiece The workpiece polishing mechanism 8 of suitable number will need the workpiece polishing mechanism 8 polished to remove and be bonded with workpiece, in movable plate by supporting mechanism 7 While body 51, workpiece polishing mechanism 8 can complete the polishing to workpiece surface, realize that heat treatment, polishing are synchronous and carry out, improve workpiece Material property.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. a kind of linear cutter pretreatment unit characterized by comprising
Station (1);
Clamping plate (2), the clamping plate (2) symmetrically slide the surface for being set to the station (1);
First side guard plate (3), first side guard plate (3) are installed on the surface of the station (1), and first side guard plate (3) it is located at the outside of the clamping plate (2);The inner wall of first side guard plate (3) is provided with first sliding groove (31);
Second side guard plate (4), second side guard plate (4) are symmetrically set with first side guard plate (3), and described second Structure is identical between side guard plate (4) and first side guard plate (3);
Preheating mechanism (5), the preheating mechanism (5) include plate body (51), connecting column (52), sliding block (53) and electrical bar (54), and the plate body (51) is vertical between first side guard plate (3), second side guard plate (4);The plate body (51) bottom surface is located at the top of the clamping plate (2);It is equipped with connecting column (52) in the middle part of the two sides of the plate body (51), and institute It states connecting column (52) and is rotatablely connected the sliding block (53);Sliding block (53) sliding is embedded in the interior of the first sliding groove (31) Portion;The inside of the plate body (51) is equipped with electrical bar (54);
Mounting box (6), the linear array of the mounting box (6) are vertical at the plate body (51) close to the interior of the clamping plate (2) Wall;The two sidewalls of the mounting box (6) are provided with second sliding slot (61);
Supporting mechanism (7), the supporting mechanism (7) includes supporting block (71), slide bar (72) and pushes away seat (73), and the support Block (71) slides the inside for being embedded in the mounting box (6);The two sidewalls of the supporting block (71) are symmetrically arranged with slide bar (72), and The slide bar (72) is slided through the second sliding slot (61);The outer end of the slide bar (72) pushes away seat (73) described in being equipped with; The extension that seat (73) is pushed away to adjust the supporting block (71);
Workpiece polishing mechanism (8), the workpiece polishing mechanism (8) is installed on the bottom surface of supporting block (71), and the workpiece polishing mechanism (8) is to right Workpiece is polished.
2. linear cutter pretreatment unit according to claim 1, it is characterised in that: first side guard plate (3), U-shaped distribution between second side guard plate (4) and the plate body (51), and first side guard plate (3), described second Side guard plate (4) and the plate body (51) are to light-blocking.
3. linear cutter pretreatment unit according to claim 2, it is characterised in that: the rotation of the plate body (51) Angle is 0 ° -90 °, and the top surface of the plate body (51) and first side guard plate (3), second side guard plate (4) flush.
4. linear cutter pretreatment unit according to claim 2 or 3, it is characterised in that: the supporting block (71) Distribution length it is identical as the maximum spacing of two clamping plates (2), and the supporting block (71) is along the length of the plate body (51) Edge direction is equally spaced.
5. linear cutter pretreatment unit according to claim 4, it is characterised in that: the preheating mechanism (5) is also Including handle (55), and the handle (55) is set to the outer wall of the plate body (51) far from the clamping plate (2).
6. linear cutter pretreatment unit according to claim 1, it is characterised in that: workpiece polishing mechanism (8) packet Rotary electric machine (81), grinding wheel (82) and driving chain (83) are included, and the grinding wheel (82) rotation is set to the supporting block (71) interior bottom portion;The bottom surface of the supporting block (71) is stretched in outside the grinding wheel (82);The rotary electric machine (81) is set to The inside of the supporting block (71), and the rotary electric machine (81) drives the grinding wheel (82) by the driving chain (83) Rotation.
7. linear cutter pretreatment unit according to claim 6, it is characterised in that: the grinding wheel (82) is in line Property array distribution several are installed, and the grinding wheel (82) along the supporting block (71) bottom surface longitudinal direction be distributed;Often A grinding wheel (82) is bonded with the driving chain (83).
8. linear cutter pretreatment unit according to claim 7, it is characterised in that: the grinding wheel (82) includes Frosted column (821) and gear (822), and one end of the frosted column (821) and the supporting block (71) are rotatablely connected;The mill The other end of sand column (821) is equipped with gear (822), and the gear (822) engagement connects the driving chain (83);The mill Sand column (821) has the bottom surface that the supporting block (71) are stretched in outside one third part.
CN201920053536.8U 2019-01-14 2019-01-14 A kind of linear cutter pretreatment unit Expired - Fee Related CN209288718U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920053536.8U CN209288718U (en) 2019-01-14 2019-01-14 A kind of linear cutter pretreatment unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920053536.8U CN209288718U (en) 2019-01-14 2019-01-14 A kind of linear cutter pretreatment unit

Publications (1)

Publication Number Publication Date
CN209288718U true CN209288718U (en) 2019-08-23

Family

ID=67642257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920053536.8U Expired - Fee Related CN209288718U (en) 2019-01-14 2019-01-14 A kind of linear cutter pretreatment unit

Country Status (1)

Country Link
CN (1) CN209288718U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109531153A (en) * 2019-01-14 2019-03-29 安徽理工大学 A kind of linear cutter pretreatment unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109531153A (en) * 2019-01-14 2019-03-29 安徽理工大学 A kind of linear cutter pretreatment unit

Similar Documents

Publication Publication Date Title
CN106271909A (en) A kind of quickly knife sharpening device
CN107322386A (en) A kind of special high-efficiency aluminum row sanding apparatus
CN209239770U (en) Polishing machine is used in a kind of processing of display screen glass
CN208262498U (en) Wire drawing polissoir
CN209288718U (en) A kind of linear cutter pretreatment unit
CN215748320U (en) Ceramic half-ball valve core processing device
CN208977438U (en) A kind of grinding device of wheel hub processing cutter head
CN213917472U (en) Edging device is used in transparent conductive glass processing
CN210704077U (en) Automatic reversing grinding machine
CN209681854U (en) A kind of grinding machine of groove that processing air spinning bearing mandrel
CN216633704U (en) Efficient plate grinder
CN109531153A (en) A kind of linear cutter pretreatment unit
CN109732449B (en) Automatic recycle equipment that polishes in waste paper tube surface
CN213164631U (en) Jewelry silver material burnishing and polishing machine
CN213592455U (en) Grinding device is used in production of indoor lamp shade
CN212886709U (en) High-efficiency sand mill for processing and producing ceramic outer surface
CN210756792U (en) Special broach grinding device of aeroengine
CN107914200A (en) A kind of four axis sanders
CN210387950U (en) Laser processing equipment for producing mechanical parts
CN211565471U (en) Grinding device is used in processing of LED lamp stand
CN106425755A (en) Labor-saving grinding machine
CN107443215B (en) Automatic equipment of polishing in waste paper tube surface
CN207840991U (en) A kind of machine components grinding machine
CN112945850A (en) Valve finished product crack control line check out test set
CN110625471A (en) Die burr cleaning device based on hardware stamping part

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: 20190823

Termination date: 20210114