CN110722379A - Machine tool machining tool - Google Patents
Machine tool machining tool Download PDFInfo
- Publication number
- CN110722379A CN110722379A CN201911090229.8A CN201911090229A CN110722379A CN 110722379 A CN110722379 A CN 110722379A CN 201911090229 A CN201911090229 A CN 201911090229A CN 110722379 A CN110722379 A CN 110722379A
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- positioning
- pressing
- bottom plate
- workpiece
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- 238000003754 machining Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a machine tool machining tool which comprises a bottom plate, wherein a first fixed positioning part for carrying out X positive positioning on a workpiece, a second fixed positioning part for carrying out Y positive positioning on the workpiece, a movable jacking part for carrying out Y negative positioning on the workpiece, a supporting part for carrying out Z direction positioning on the workpiece and more than two pressing parts are arranged on the bottom plate. The machine tool machining tool is easy to clamp, accurate and stable in positioning, can clamp multiple surfaces of a machined workpiece at one time, and greatly improves machining efficiency and machining precision.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a machine tool machining tool.
Background
In the technical field of machining, adopt universal fixturing usually, a lot of work pieces have a plurality of machined surfaces, need process one side after, take off the work piece, and clamping location again can carry out the processing of next face. Therefore, a workpiece is usually clamped for many times in the machining process, the operation process is complicated, the positioning error is large for many times, and the working efficiency and the machining quality are influenced.
Disclosure of Invention
The invention aims at the problem, and researches and designs a machine tool machining tool. The technical means adopted by the invention are as follows:
the utility model provides a machine tool machining frock, includes the bottom plate, be equipped with on the bottom plate and be used for carrying out the first fixed location spare of X positive location to the work piece, be used for carrying out the fixed location spare of second of Y positive location to the work piece, be used for carrying out the activity roof pressure piece of Y negative location and be used for carrying out the support piece and the more than two piece that compress tightly of Z to the work piece.
Further, first fixed positioning element is including fixing the first fixing base on the bottom plate and setting up the first supporting nail on first fixing base, the fixed positioning element of second is including fixing the second fixing base on the bottom plate and setting up the second supporting nail on the second fixing base, the head of a nail of first supporting nail and second supporting nail is used for the fixed work piece of butt, activity roof pressure piece includes the third fixing base and sets up the adjustable screw on the third fixing base, adjustable screw accessible screw thread adjustment makes its head of a nail top tight work piece.
Furthermore, the pressing piece comprises a first limiting column, a supporting column and a pressing plate, a first strip-shaped through hole is formed in the pressing plate, the first limiting column penetrates through the first strip-shaped through hole, a pressing nut in threaded fit with the first limiting column is arranged on the first limiting column, the pressing nut can move along the first limiting column through threads to further press the pressing plate, one end of the pressing plate is pressed on the supporting column in a pressing state, and the other end of the pressing plate is pressed on a workpiece.
Furthermore, a first cushion block and a second cushion block for supporting the workpiece are arranged on the bottom plate.
Furthermore, the first cushion block and the second cushion block are two cushion blocks with equal height and are arranged in parallel, and at least one of the first cushion block and the second cushion block is a strip-shaped cushion block.
Furthermore, the bottom plate is also provided with at least one adjustable supporting piece, and the adjustable supporting piece comprises a supporting seat and an adjustable supporting column capable of adjusting the height of the supporting seat.
Further, the adjustable supporting columns are matched with the supporting seats through threads.
Furthermore, a third fixed positioning piece for carrying out X negative direction positioning on the workpiece is further arranged on the bottom plate, and the third fixed positioning piece is detachably fixed on the bottom plate.
Furthermore, the third fixing and positioning part comprises a second limiting column and a positioning pressing part, the second limiting column is arranged on the edge end face of the bottom plate, a radial protrusion used for compressing the positioning pressing part is arranged on the second limiting column, a second strip-shaped through hole is formed in the positioning pressing part, the second limiting column penetrates through the second strip-shaped through hole, the positioning pressing part is located between the bottom plate and the radial protrusion, one end of the positioning pressing part is abutted to the edge end face of the bottom plate, and the other end of the positioning pressing part is pressed on a workpiece.
Furthermore, a first fixed positioning part, a movable jacking part and a second fixed positioning part are arranged on the bottom plate, the positions of the movable jacking part and the second fixed positioning part correspond to each other, and the more than two pressing parts are symmetrically arranged relative to the workpiece.
Compared with the prior art, the machine tool machining tool is easy to clamp, accurate and stable in positioning, can machine a plurality of surfaces of a workpiece by clamping once, and greatly improves machining efficiency and machining precision.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a top view of fig. 2.
Fig. 5 is a schematic perspective view of a clamped state according to an embodiment of the present invention.
Fig. 6 is a front view of fig. 5.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a top view of fig. 6.
Fig. 9 is a schematic perspective view of a clamped state according to another embodiment of the present invention.
Fig. 10 is a front view of fig. 9.
Fig. 11 is a left side view of fig. 10.
Fig. 12 is a top view of fig. 10.
Detailed Description
As shown in fig. 1 to 12, a machine tool machining tool includes a bottom plate 1, where the bottom plate 1 is provided with a first fixed positioning element 2 for performing X positive positioning on a workpiece 10, a second fixed positioning element 3 for performing Y positive positioning on the workpiece 10, a movable pressing element 4 for performing Y negative positioning on the workpiece 10, a supporting element 5 for performing Z positioning on the workpiece, and more than two pressing elements 6. The X, Y and Z directions described herein are only to limit the relative directions of the components of the present invention, and are not to limit the absolute directions of the components.
First fixed positioning element 2 is including fixing first fixing base 21 on bottom plate 1 and setting up first support nail 22 on first fixing base 21, second fixed positioning element 3 is including fixing second fixing base 31 on bottom plate 1 and setting up second support nail 32 on second fixing base 31, the head of a nail of first support nail 22 and second support nail 32 is used for butt fixed work piece. In this embodiment, the first fixing seat 21 includes a right-angle plate-shaped base 211 and a rib plate 212 arranged on the right-angle plate-shaped base, the transverse plate of the right-angle plate-shaped base 211 is fixed on the bottom plate 1, the longitudinal plate faces the direction of the workpiece, the transverse plate and the workpiece are located on two sides of the longitudinal plate, so that the transverse plate does not interfere with the clamping space of the workpiece, two first support nails 22 are arranged on the top of the longitudinal plate, the first support nails 22 are rivets, and the caps of the rivets serve as positioning support points for positioning the workpiece, so that the contact area is reduced and the limiting precision is increased while the rigidity is ensured. Specifically, the right-angle plate-shaped base 211 may be an integral angle steel structure, and certainly, the whole first fixing seat 21 may also be in other forms, as long as the workpiece can be stably positioned, and preferably, no additional interference is generated in the workpiece placing space, in this embodiment, the structure of the second fixing and positioning element 3 is the same as that of the first fixing and positioning element 2. In this embodiment, the bottom plate 1 is provided with a first fixed positioning element 2, a movable pressing element 4 and a second fixed positioning element 3, and the positions of the movable pressing element 4 and the second fixed positioning element 3 correspond to each other.
The movable jacking member 4 comprises a third fixed seat 41 and an adjustable screw 42 arranged on the third fixed seat 41, and the adjustable screw 42 can be adjusted through threads to enable a nut to jack a workpiece. In this embodiment, the third fixing seat 41, the first fixing seat 21 and the second fixing seat 31 have the same structure, the adjustable screw 42 is a modified bolt, and for convenience of turning, one end away from the nut may be set to be polygonal.
Compressing tightly 6 includes first spacing post 61, support column 62 and clamp plate 63, be equipped with first bar through-hole 631 on the clamp plate 63, first spacing post 61 passes first bar through-hole 631, be equipped with on the first spacing post 61 with first spacing post 61 screw-thread fit's gland nut 64, gland nut 64 can move and then compress tightly clamp plate 63 along first spacing post 61 through the screw thread, and under the compression state, the one end of clamp plate 63 compresses tightly on support column 62, and the other end of clamp plate 63 compresses tightly on the work piece. In this embodiment, six pressing pieces 6 are provided, and the pressing positions of the pressing pieces 6 are all non-processing areas of the workpiece, so that interference in the processing of the workpiece is avoided.
The base plate 1 is provided with two supporting members 5, namely a first cushion block 51 and a second cushion block 52 for supporting a workpiece. In this embodiment, the first cushion block 51 and the second cushion block 52 are two equal-height cushion blocks arranged in parallel, at least one of the first cushion block 51 and the second cushion block 52 is a strip-shaped cushion block, so that the support stability is stronger, in this embodiment, the heights of the two end portions of the first cushion block 51 are higher than the height of the middle portion, so as to form two support surfaces, and form three support surfaces distributed in a triangular shape with the second cushion block 52, so as to stably support a workpiece, and the number, structure and positions of the support members 5 are set according to the specific conditions of different workpieces. In order to more firmly position the workpiece, it is preferable that the pressing members 6, two of which are disposed on the side of the first block 51 away from the second block 52 and two of which are disposed above the vicinity of the second block 52, are disposed on both sides of the first block 51 and the second block 52. All the pressing members 6 are preferably arranged symmetrically with respect to the workpiece, ensuring a balanced pressing. The face of the workpiece supported by the support 5 may be a pre-machined datum face.
The bottom plate 1 is further provided with at least one adjustable supporting piece 7, and the adjustable supporting piece 7 comprises a supporting seat 71 and an adjustable supporting column 72 capable of adjusting the height of the supporting seat 71. Specifically, the adjustable supporting column 72 and the supporting seat 71 can be matched through threads, clamping planes which can be clamped by tools are arranged on two sides of the supporting column 72, and the height of the supporting column 72 can be adjusted by using tools such as a wrench. Other adjustable structures can be arranged between the supporting seat 71 and the supporting column 72. The setting of adjustable support piece 7 for the bearing structure commonality of whole frock is stronger, made up the fixed problem of first cushion 51 and second cushion 52 holding surface, adjustable support piece 7's strong point can be in the coplanar with the holding surface of first cushion 51 and second cushion 52, also can be in different planes, according to the support demand of different work pieces, can set up adjustable support piece 7 in different positions, the quantity of setting also can be selected according to specific demand, and adjust the support height according to the work piece shape of different positions, further strengthen the stability of location.
And a third fixed positioning part 8 for carrying out X negative direction positioning on the workpiece is also arranged on the bottom plate 1. Preferably, the third fixing location 8 is detachably fixed to the base plate 1. In this embodiment, the third fixing positioning element 8 includes a second limiting column 81 and a positioning pressing element 82, the second limiting column 81 can be detachably fixed on the edge end face of the bottom plate 1, that is, on the edge end face of one end far away from the first fixing positioning element 2, a radial protrusion for compressing the positioning pressing element 82 is provided on the second limiting column 81, in this embodiment, a threaded pin is provided integrally with the second limiting column 81 and the radial protrusion, the threaded pin is fixed in a threaded hole on the bottom plate 1 through a thread, the radial protrusion is a pin cap 83, a second strip-shaped through hole 821 is provided on the positioning pressing element 82, the second limiting column 81 passes through the second strip-shaped through hole 821, and the positioning pressing element 82 is located between the bottom plate 1 and the pin cap 83, so that one end of the positioning pressing element 82 abuts against the edge end face of the bottom plate 1, and the other end. The positioning pressing part 82 comprises a pressing part main body 822 and supporting legs 823 arranged at two ends of the pressing part main body 822, wherein the second strip-shaped through hole 821 is arranged on the pressing part main body 822, in the embodiment, the positioning pressing part 82 is of an arch structure, the arrangement of the arch structure avoids extra supporting columns arranged on the end face of the bottom plate 1, the end part of the arch structure serves as the supporting leg 823, the effect of the supporting columns is achieved, too many structures are prevented from being introduced on the end face of the bottom plate 1, meanwhile, the other end part of the arch structure compresses a workpiece, the edge of the workpiece can be compressed and positioned when the edge of the workpiece is in the inner side of the edge of the bottom plate 1 or is flush with the edge of the bottom plate 1, the workpiece does not need to extend out of the edge of the. The third fixed positioning part 8 can be detachably fixed on the bottom plate 1, when the face of the workpiece corresponding to the first fixed positioning part 8 is processed, the third fixed positioning part can be detached, as shown in fig. 9 to 12, unnecessary interference is avoided, when other faces of the workpiece are processed, the third fixed positioning part 8 can be installed, and six freedom directions of the workpiece are guaranteed to be stably positioned.
The following tool for processing a workpiece as a saddle, especially the tool for processing the front surface of the saddle further describes the embodiment, for the situation of setting a third fixing positioning element, as shown in fig. 5 to 8, during processing, the bottom plate is positioned on the machine tool workbench first, the positioning key is utilized to be matched with the T-shaped groove on the workbench for positioning and locking, the reverse surface of the saddle is placed on the support piece 5, the step structure of the first cushion block 51 corresponds to the concave part of the bottom surface of the saddle, the positioning is convenient, the four pressing pieces 6 are all pressed at the non-processing position of the saddle, and the two pressing pieces 6 close to the end part are pressed at the lower layer of the double-layer structure of the end surface of the sliding ammonia, the interference is further reduced, and the first fixing positioning element 2 and the second fixing positioning element 3 are used for positioning the end surface and the side surface of the sliding. The end face and the side face of the positioning are perpendicular to each other, and the side face of the sliding saddle can be a prefabricated reference face. The adjustable support member 7 adjustably supports a portion near the tip, and stably supports the saddle together with the first cushion block 51 and the second cushion block 52. The third fixing and positioning element 8 positions the end face of the saddle end side. Fig. 9 to 12 show the case where the third fixing and positioning member is not provided, and this embodiment can avoid additional interference in machining the end surface on the tip end side of the saddle and the shaft hole while ensuring stable positioning of the saddle.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a machine tool machining frock, includes the bottom plate, its characterized in that: the bottom plate is provided with a first fixed positioning part for X positive positioning of the workpiece, a second fixed positioning part for Y positive positioning of the workpiece, a movable jacking part for Y negative positioning of the workpiece, a supporting part for Z positive positioning of the workpiece and more than two pressing parts.
2. The machine tool machining tool according to claim 1, characterized in that: the first fixing positioning piece comprises a first fixing seat fixed on the bottom plate and a first supporting nail arranged on the first fixing seat, the second fixing positioning piece comprises a second fixing seat fixed on the bottom plate and a second supporting nail arranged on the second fixing seat, the nail caps of the first supporting nail and the second supporting nail are used for abutting against fixed workpieces, the movable jacking piece comprises a third fixing seat and an adjustable screw arranged on the third fixing seat, and the adjustable screw can be adjusted through threads to enable the nail caps of the adjustable screw to jack the workpieces.
3. The machine tool machining tool according to claim 1, characterized in that: the pressing piece comprises a first limiting column, a supporting column and a pressing plate, a first strip-shaped through hole is formed in the pressing plate, the first limiting column penetrates through the first strip-shaped through hole, a pressing nut in threaded fit with the first limiting column is arranged on the first limiting column, the pressing nut can move along the first limiting column through threads to further press the pressing plate, one end of the pressing plate is pressed on the supporting column in a pressing state, and the other end of the pressing plate is pressed on a workpiece.
4. The machine tool machining tool according to claim 1, characterized in that: and the bottom plate is provided with a first cushion block and a second cushion block which are used for supporting a workpiece.
5. The machine tool of claim 4, wherein: the first cushion block and the second cushion block are two cushion blocks with equal height and are arranged in parallel, and at least one of the first cushion block and the second cushion block is a strip-shaped cushion block.
6. The machine tool machining tool according to claim 5, characterized in that: the bottom plate is also provided with at least one adjustable supporting piece, and the adjustable supporting piece comprises a supporting seat and an adjustable supporting column capable of adjusting the height of the supporting seat.
7. The machine tool of claim 6, wherein: the adjustable supporting columns are matched with the supporting seats through threads.
8. The machine tool machining tool according to claim 1, characterized in that: the bottom plate is also provided with a third fixed positioning piece for carrying out X negative direction positioning on the workpiece, and the third fixed positioning piece is detachably fixed on the bottom plate.
9. The machine tool of claim 8, wherein: the third fixing and positioning part comprises a second limiting column and a positioning pressing part, the second limiting column is arranged on the edge end face of the bottom plate, a radial protrusion used for compressing the positioning pressing part is arranged on the second limiting column, a second strip-shaped through hole is formed in the positioning pressing part, the second limiting column penetrates through the second strip-shaped through hole, the positioning pressing part is located between the bottom plate and the radial protrusion, one end of the positioning pressing part is abutted to the edge end face of the bottom plate, and the other end of the positioning pressing part is pressed on a workpiece.
10. The machine tool machining tool according to any one of claims 1 to 9, characterized in that: the pressing device comprises a bottom plate, a first fixed positioning piece, a movable pressing piece and a second fixed positioning piece, wherein the bottom plate is provided with the first fixed positioning piece, the movable pressing piece and the second fixed positioning piece are arranged correspondingly, and the more than two pressing pieces are symmetrically arranged relative to a workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090229.8A CN110722379A (en) | 2019-11-08 | 2019-11-08 | Machine tool machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090229.8A CN110722379A (en) | 2019-11-08 | 2019-11-08 | Machine tool machining tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110722379A true CN110722379A (en) | 2020-01-24 |
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ID=69225143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911090229.8A Pending CN110722379A (en) | 2019-11-08 | 2019-11-08 | Machine tool machining tool |
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| CN (1) | CN110722379A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551140A (en) * | 2020-04-30 | 2020-08-18 | 亿和精密工业(威海)有限公司 | Positioning jig with multiple repositioning mechanisms for three-dimensional measurement |
| CN112008415A (en) * | 2020-09-15 | 2020-12-01 | 杨兴发 | Sheet type standard knot tool and sheet type standard knot processing technology |
| CN112605685A (en) * | 2020-12-24 | 2021-04-06 | 科德数控股份有限公司 | Slip table frock clamp |
| CN114227577A (en) * | 2022-01-06 | 2022-03-25 | 泰安市泰和电力设备有限公司 | Processing tool for high-voltage switch circuit breaker mechanism support |
| CN115070449A (en) * | 2022-06-29 | 2022-09-20 | 天润工业技术股份有限公司 | Clamp for processing fork-shaped arm hole |
| CN115179076A (en) * | 2022-06-23 | 2022-10-14 | 山东越成制动系统股份有限公司 | Special device for processing air pressure disc brake bracket by arranging four-axis turntable |
| CN112605685B (en) * | 2020-12-24 | 2024-11-08 | 科德数控股份有限公司 | Slip table frock clamp |
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| JP2005169537A (en) * | 2003-12-09 | 2005-06-30 | Canon Electronics Inc | Workpiece positioning and fixing tool |
| CN205254594U (en) * | 2015-12-08 | 2016-05-25 | 山西利民工业有限责任公司 | Adj. tabular closing device with adjustable |
| CN208450911U (en) * | 2018-05-06 | 2019-02-01 | 海克力斯（上海）自动化设备有限公司 | A kind of rocker arm seat beam welding tooling |
| CN110076599A (en) * | 2019-06-10 | 2019-08-02 | 上海第一机床厂有限公司 | Clamping fixer |
| CN211136342U (en) * | 2019-11-08 | 2020-07-31 | 科德数控股份有限公司 | Machine tool machining tool |
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- 2019-11-08 CN CN201911090229.8A patent/CN110722379A/en active Pending
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| JP2005169537A (en) * | 2003-12-09 | 2005-06-30 | Canon Electronics Inc | Workpiece positioning and fixing tool |
| CN205254594U (en) * | 2015-12-08 | 2016-05-25 | 山西利民工业有限责任公司 | Adj. tabular closing device with adjustable |
| CN208450911U (en) * | 2018-05-06 | 2019-02-01 | 海克力斯（上海）自动化设备有限公司 | A kind of rocker arm seat beam welding tooling |
| CN110076599A (en) * | 2019-06-10 | 2019-08-02 | 上海第一机床厂有限公司 | Clamping fixer |
| CN211136342U (en) * | 2019-11-08 | 2020-07-31 | 科德数控股份有限公司 | Machine tool machining tool |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551140A (en) * | 2020-04-30 | 2020-08-18 | 亿和精密工业(威海)有限公司 | Positioning jig with multiple repositioning mechanisms for three-dimensional measurement |
| CN112008415A (en) * | 2020-09-15 | 2020-12-01 | 杨兴发 | Sheet type standard knot tool and sheet type standard knot processing technology |
| CN112605685A (en) * | 2020-12-24 | 2021-04-06 | 科德数控股份有限公司 | Slip table frock clamp |
| CN112605685B (en) * | 2020-12-24 | 2024-11-08 | 科德数控股份有限公司 | Slip table frock clamp |
| CN114227577A (en) * | 2022-01-06 | 2022-03-25 | 泰安市泰和电力设备有限公司 | Processing tool for high-voltage switch circuit breaker mechanism support |
| CN115179076A (en) * | 2022-06-23 | 2022-10-14 | 山东越成制动系统股份有限公司 | Special device for processing air pressure disc brake bracket by arranging four-axis turntable |
| CN115179076B (en) * | 2022-06-23 | 2024-07-09 | 山东越成制动系统股份有限公司 | Special device arranged on four-axis turntable and used for machining pneumatic disc type brake bracket |
| CN115070449A (en) * | 2022-06-29 | 2022-09-20 | 天润工业技术股份有限公司 | Clamp for processing fork-shaped arm hole |
| CN115070449B (en) * | 2022-06-29 | 2023-11-17 | 天润工业技术股份有限公司 | Clamp for machining fork-type arm holes |
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