CN214770886U - Cylindrical grinding tool clamp suitable for rotating target - Google Patents
Cylindrical grinding tool clamp suitable for rotating target Download PDFInfo
- Publication number
- CN214770886U CN214770886U CN202120285873.7U CN202120285873U CN214770886U CN 214770886 U CN214770886 U CN 214770886U CN 202120285873 U CN202120285873 U CN 202120285873U CN 214770886 U CN214770886 U CN 214770886U
- Authority
- CN
- China
- Prior art keywords
- rotary target
- positioning
- clamp suitable
- grinding tool
- cylindrical grinding
- 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.)
- Active
Links
Images
Abstract
The utility model discloses an external grinding frock clamp suitable for rotatory target, it is main including dabber and two tops that can open and shut hold the mechanism, it is concrete, two tops hold the both sides that the mechanism distributes at the spindle location structure, and through the inner wall with location structure's cooperation and stable top hold rotatory target, thereby realize through the mode of opening and shutting top holding with rotatory target fastening at the epaxial purpose of dabber, can enough guarantee like this that the fixed effect of rotatory target is convenient for carry out the cylindrical grinding, can avoid the fixed method damage rotatory target of hard contact again.
Description
Technical Field
The utility model relates to a target anchor clamps, in particular to peripheral milling frock clamp suitable for rotatory target.
Background
The cylindrical grinding refers to grinding the outer cylinder, the outer cone and the shaft shoulder end surface of a cylindrical workpiece by using a cylindrical grinding machine, the rotating speed of the workpiece is low during grinding, the grinding method of the cylindrical grinding mainly comprises a longitudinal grinding method and an incision grinding method, and generally, the grinding efficiency of the incision grinding method is higher than that of the longitudinal grinding method. The existing external grinding operation of the rotary target material generally adopts a hard contact fixing method that a clamp clamps end heads at two ends of the target material, namely, the rotary target material is rotated to cut after two ends of the rotary target material are propped against the rotary target material.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an excircle grinding frock clamp suitable for rotatory target can enough guarantee the centering and the fastening effect of rotatory target effectively, can avoid the phenomenon that damage and fracture appear in rotatory target again.
According to the utility model discloses excircle grinding frock clamp suitable for rotatory target, include:
the mandrel is rotatably arranged on the outer circle grinding machine and is provided with a positioning structure for clamping and positioning;
the two jacking mechanisms are movably arranged on the mandrel and located on two sides of the positioning structure, each jacking mechanism can be opened and closed, the opening and closing angle can be adjusted, and the jacking mechanisms are used for being matched with the positioning structure to jack the inner wall of the rotary target.
According to the utility model discloses excircle grinding frock clamp suitable for rotatory target has following technological effect at least:
the utility model provides an external grinding frock clamp suitable for rotatory target, it is main including dabber and two tops that can open and shut hold the mechanism, it is concrete, two tops hold the both sides that the mechanism distributes at the spindle location structure, and through the cooperation with location structure and stably push up the inner wall of holding rotatory target, thereby realize through the mode of holding in the top of opening and shutting fastening rotatory target at the epaxial purpose of dabber, can enough guarantee like this that the fixed effect of rotatory target is convenient for carry out the cylindrical grinding, can avoid the fixed method damage rotatory target of hard contact again.
According to some embodiments of the utility model, every the top is held the mechanism and is provided with regulation structure and a plurality of top and is held the portion, and is a plurality of the top is held the portion and is wound the central evenly distributed of dabber, and every the top is held the portion and can be rotated, it removes the setting and is in to adjust the structure the top is held the portion and is rotated and adjust the angle that opens and shuts of the mechanism is held to the top, under this kind of structure, makes a plurality of tops that are located same top and hold the mechanism and rotate simultaneously through removing the regulation structure, can realize the top and hold the angle regulation that opens and shuts of mechanism, and then can be applicable to the high-efficient fixed of the rotatory target of different sizes (for example the internal diameter size is different).
According to the utility model discloses a some embodiments, adjust the structure laminating the one end of portion is held on the top be provided with the wedge-shaped face of portion adaptation is held on the top to a laminating area when being used for improving the portion is held on the structure top of adjusting, thereby the effect is held on the improvement top.
According to the utility model discloses a some embodiments, adjust the structure and set up to threaded connection the fastening bolt of dabber under this kind of structure, make it remove along the dabber through rotating fastening bolt, can the quick adjustment top hold the angle that opens and shuts of mechanism.
According to some embodiments of the utility model, the location structure can set up with dismantling on the dabber to change or maintain location structure.
According to some embodiments of the utility model, location structure can set up with removing on the dabber to adjust location structure's mounted position and further satisfy the fixed demand of different targets.
According to some embodiments of the utility model, location structure is provided with first location portion and second location portion, first location portion with interval between the second location portion can be adjusted, through adjusting the interval between first location portion and the second location portion to the fixed demand of centre gripping that the mechanism can further satisfy the rotatory target of different length is held on the cooperation removal top.
According to the utility model discloses a some embodiments, the top hold the mechanism in first location portion with the one end that second location portion kept away from each other is provided with mounting structure, the top is held the portion and is rotated and install mounting structure is last, and is obvious, mounting structure slidable mounting here is when dabbing, can remove to holding the location structure to holding under the effect in the top of adjusting the structure to further cooperate the rotation that adjusts the structure and realize the portion of holding in the top, and when mounting structure can the snap-on at spindle, then can utilize location structure to realize supplementary installation location, can realize two intervals between holding the mechanism through removing mounting structure simultaneously and adjust, consequently, mounting structure's here mounting means is comparatively various.
According to some embodiments of the utility model, mounting structure slidable mounting is on the dabber to be used for the location structure is held to slip top.
According to some embodiments of the utility model, mounting structure threaded connection dabber to be used for at optional position fixed connection dabber and realize the rigidity and the interval control of top holding mechanism.
According to some embodiments of the utility model, mounting structure sets up to tubular structure to in realize and the dabber between slidable mounting or threaded connection.
According to some embodiments of the utility model, mounting structure can also set up to the curved surface platelike structure with the dabber adaptation, also can realize fixing through bolted connection like this.
According to some embodiments of the utility model, location structure is provided with first installation department and second installation department, first installation department with interval between the second installation department can be adjusted, just first installation department with the inside wall of second installation department corresponds the portion is held to the top outwards and is formed mounting structure, so that be used for the installation the portion is held to the top, and obviously, be different from foretell mounting structure, mounting structure here and first installation department or second installation department formula structure as an organic whole are equivalent to directly utilizing location structure to realize the rotation installation and the interval of holding the mechanism and adjust.
According to the utility model discloses a some embodiments, location structure's both ends are provided with threaded connection's first connector and second connector, and first connector and second connector are used for rotating the installation and push up the portion of holding, and obviously, this kind of modular location structure can facilitate for the dismouting and the maintenance of pushing up the mechanism through detachable first connector and second connector.
According to some embodiments of the utility model, the portion is held on top includes rotor bar group and roof, the one end of rotor bar group is rotated and is connected location structure and/or dabber, other end are rotated and are connected the roof, the roof with the inner wall adaptation of rotatory target can be so can hold rotor bar group and rotate simultaneously through removing the regulation structure, and then drive the inner wall that the rotatory target was held on the roof laminating top, and then realize holding the angle modulation that opens and shuts of mechanism.
According to some embodiments of the present invention, the top plate is attached to the end surface of the rotary target, and an elastic plate is provided to elastically support the inner wall of the rotary target.
According to some embodiments of the present invention, the elastic sheet is preferably a polyurethane sheet or a rubber sheet so as to improve durability of the elastic sheet.
According to some embodiments of the utility model, the one side of the inner wall of the rotatory target of elastic plate laminating is provided with the friction line that is used for improving the friction effect to in the fixed effect of improvement rotatory target.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic overall structure diagram of an external grinding tool clamp suitable for a rotary target according to an embodiment of the present invention;
fig. 2 is a first structural schematic diagram of a positioning structure according to an embodiment of the present invention;
fig. 3 is a second structural schematic diagram of the positioning structure according to the embodiment of the present invention;
fig. 4 is a third schematic structural diagram of the positioning structure according to the embodiment of the present invention;
fig. 5 is a schematic view of an assembly structure of the top plate and the elastic plate according to the embodiment of the present invention;
reference numerals:
the device comprises a mandrel 100, a positioning structure 101, a mounting structure 102, a rotating rod group 103, a top plate 104, an elastic plate 105 and an adjusting structure 106; rotating the target 200; a first positioning portion 201 and a second positioning portion 202; a first mounting portion 301 and a second mounting portion 302; a first connector 401 and a second connector 402; an insert plate 501 and a connecting bolt 502.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for a worker of ordinary skill in the art.
Referring to fig. 1-5, the utility model provides an external grinding frock clamp suitable for rotatory target, include:
the mandrel 100 is rotationally arranged on the outer circle grinding machine, and the mandrel 100 is provided with a positioning structure 101 for clamping and positioning;
the two jacking mechanisms are movably arranged on the mandrel 100 and located on two sides of the positioning structure 101, each jacking mechanism can be opened and closed, the opening and closing angle can be adjusted, and the jacking mechanisms are used for being matched with the positioning structure 101 to jack the inner wall of the rotary target 200.
According to the structure, the utility model provides an external grinding frock clamp suitable for rotatory target, it is main including dabber 100 and two tops that can open and shut hold the mechanism, it is concrete, two tops hold the both sides that the mechanism distributes at dabber 100 on location structure 101, and through the cooperation with location structure 101 and stably support the inner wall of holding rotatory target 200, thereby realize through the mode of holding in the top that opens and shuts fastening rotatory target 200 in the epaxial purpose of dabber 100, can enough guarantee like this that the fixed effect of rotatory target 200 is convenient for carry out the external grinding, the fixed method that can avoid hard contact again harms rotatory target 200.
In some embodiments of the present invention, as shown in fig. 1, each supporting mechanism is provided with an adjusting structure 106 and a plurality of supporting portions, the plurality of supporting portions are uniformly distributed around the center of the mandrel 100, and each supporting portion can rotate, the adjusting structure 106 is moved and disposed on the mandrel 100, and can be supported by the supporting portion within the moving range to rotate and adjust the opening and closing angle of the supporting mechanism, under such a structure, the plurality of supporting portions located in the same supporting mechanism can be rotated simultaneously by moving the adjusting structure 106, so as to adjust the opening and closing angle of the supporting mechanism, and further, the supporting mechanism can be applied to efficiently fixing the rotating target 200 with different sizes (for example, different inner diameter sizes).
In some embodiments of the present invention, as shown in fig. 1, one end of the abutting portion of the adjusting structure 106 is provided with a wedge-shaped surface adapted to the abutting portion, so as to improve the abutting area when the adjusting structure 106 abuts the abutting portion, thereby improving the abutting effect.
In some embodiments of the present invention, as shown in fig. 1, the adjusting structure 106 is configured as a fastening bolt for screwing the mandrel 100, and in such a structure, the opening and closing angle of the supporting mechanism can be quickly adjusted by rotating the fastening bolt to move along the mandrel 100.
In some embodiments of the present invention, as shown in fig. 1, the positioning structure 101 is detachably disposed on the mandrel 100, so as to facilitate replacement or maintenance of the positioning structure 101.
In some embodiments of the present invention, as shown in fig. 1, the positioning structure 101 is movably disposed on the mandrel 100, so as to adjust the installation position of the positioning structure 101 to further satisfy different target fixing requirements.
In some embodiments of the present invention, as shown in fig. 2, the positioning structure 101 is provided with a first positioning portion 201 and a second positioning portion 202, the distance between the first positioning portion 201 and the second positioning portion 202 can be adjusted, and the clamping and fixing requirements of the rotating target 200 with different lengths can be further satisfied by adjusting the distance between the first positioning portion 201 and the second positioning portion 202 and by matching with the moving and supporting mechanism.
In some embodiments of the present invention, as shown in fig. 2, the top supporting mechanism is provided with the mounting structure 102 at the end where the first positioning portion 201 and the second positioning portion 202 are away from each other, the top supporting portion is rotatably mounted on the mounting structure 102, obviously, when the mounting structure 102 is slidably mounted on the mandrel 100, the top supporting function of the adjusting structure 106 can be moved to the top supporting structure 101, and further cooperate with the adjusting structure 106 to realize the rotation of the top supporting portion, and when the mounting structure 102 can be directly fixed on the mandrel 100, the positioning structure 101 can be utilized to realize the auxiliary mounting and positioning, and meanwhile, the distance adjustment between the two top supporting mechanisms can be realized by moving the mounting structure 102, therefore, the mounting manner of the mounting structure 102 is various.
In some embodiments of the present invention, as shown in fig. 1 and 2, the mounting structure 102 is slidably mounted on the mandrel 100 for slidably supporting the positioning structure 101.
In some embodiments of the present invention, the mounting structure 102 is threadedly coupled to the mandrel 100 for fixedly coupling the mandrel 100 in any position to achieve positional fixation and spacing adjustment of the jacking mechanism.
In some embodiments of the present invention, the mounting structure 102 is provided as a cylindrical structure to facilitate a sliding or threaded connection with the mandrel 100.
In some embodiments of the present invention, the mounting structure 102 may also be configured as a curved plate-like structure adapted to the mandrel 100, so that the fixing can be realized by the bolt connection.
In some embodiments of the present invention, as shown in fig. 3, the positioning structure 101 is provided with a first mounting portion 301 and a second mounting portion 302, the distance between the first mounting portion 301 and the second mounting portion 302 can be adjusted, and the inner side wall of the first mounting portion 301 and the second mounting portion 302 corresponds to the supporting portion extending outward to form the mounting structure 102, so as to be used for mounting the supporting portion, obviously, different from the above-mentioned mounting structure 102, the mounting structure 102 is integrated with the first mounting portion 301 or the second mounting portion 302, which is equivalent to directly using the positioning structure 101 to realize the rotational mounting and the distance adjustment of the supporting mechanism.
In some embodiments of the present invention, as shown in fig. 4, the two ends of the positioning structure 101 are provided with a first connector 401 and a second connector 402 that are connected by a screw, and the first connector 401 and the second connector 402 are used for rotatably mounting the supporting portion, obviously, the combined positioning structure 101 can facilitate the dismounting and maintenance of the supporting mechanism through the detachable first connector 401 and the detachable second connector 402.
In some embodiments of the present invention, as shown in fig. 1, the supporting portion includes a rotating rod set 103 and a top plate 104, one end of the rotating rod set 103 is rotated to connect the positioning structure 101 and/or the mandrel 100, the other end is rotated to connect the top plate 104, the top plate 104 is adapted to the inner wall of the rotating target 200, so that the rotating rod set 103 can be supported by the adjusting structure 106 to rotate simultaneously, and the inner wall of the rotating target 200 is supported by the top plate 104, thereby achieving the adjustment of the opening and closing angle of the supporting mechanism.
In some embodiments of the present invention, as shown in fig. 1, each of the rotating rod sets 103 is provided with at least two rotating rods that are the same and parallel to each other, and the rotating rods need to be always kept in a parallel state during the rotating process, so that the top plate 104 can be always kept in a horizontal state and can effectively support the inner wall of the rotating target 200.
In some embodiments of the present invention, as shown in fig. 1, the end surface of the top plate 104 attached to the rotating target 200 is provided with an elastic plate 105 for elastically supporting the inner wall of the rotating target 200, and achieving the purpose of avoiding damage to the inner wall of the rotating target 200 and effectively preventing the occurrence of cracking.
In some embodiments of the present invention, the elastic plate 105 is preferably a polyurethane plate or a rubber plate, so as to improve the durability of the elastic plate 105.
In some embodiments of the present invention, the surface of the elastic plate 105 attached to the inner wall of the rotating target 200 is provided with friction lines for improving the friction effect, so as to improve the fixing effect of the rotating target 200.
In some embodiments of the present invention, as shown in fig. 5, a detachable insertion plate 501 is disposed in the elastic plate 105, and a connecting bolt 502 for connecting the insertion plate 501 is disposed on the top plate 104, so that the elastic plate 105 and the top plate 104 can be detachably fixed by the connecting bolt 502 and the insertion plate 501.
In some embodiments of the present invention, a slot is provided in the elastic plate 105, and the inserting plate 501 is slidably mounted in the slot, so that the detachable mounting of the inserting plate 501 can be realized.
In some embodiments of the present invention, the surface of the insert plate 501 is coated with an adhesive for improving the connection strength with the slot.
In some embodiments of the present invention, a first connection hole is disposed in the elastic plate 105, a second connection hole is disposed on the top plate 104 corresponding to the first connection hole, and the top plate 104 can be detachably assembled with the elastic plate 105 by inserting a bolt or a screw in the second connection hole to connect the first connection hole.
In some embodiments of the present invention, the elastic plate 105 and the top plate 104 are shaped as a curved surface adapted to the inner wall of the rotary target 200, so as to support and fix the rotary target with high efficiency.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides an external grinding frock clamp suitable for rotatory target which characterized in that includes:
the mandrel is rotatably arranged on the outer circle grinding machine and is provided with a positioning structure for clamping and positioning;
the two jacking mechanisms are movably arranged on the mandrel and located on two sides of the positioning structure, each jacking mechanism can be opened and closed, the opening and closing angle can be adjusted, and the jacking mechanisms are used for being matched with the positioning structure to jack the inner wall of the rotary target.
2. The cylindrical grinding tool clamp suitable for the rotary target according to claim 1, wherein each of the supporting mechanisms is provided with an adjusting structure and a plurality of supporting portions, the supporting portions are uniformly distributed around the center of the mandrel, each of the supporting portions can rotate, the adjusting structure is movably disposed on the mandrel and can rotate against the supporting portion within a moving stroke range to adjust an opening and closing angle of the supporting mechanism.
3. The cylindrical grinding tool clamp suitable for the rotary target according to claim 2, wherein a wedge-shaped surface adapted to the supporting portion is arranged at one end of the adjusting structure, which is attached to the supporting portion.
4. The cylindrical grinding tool clamp suitable for the rotary target according to claim 3, wherein the adjusting structure is a fastening bolt in threaded connection with the mandrel.
5. The cylindrical grinding tool clamp suitable for the rotary target according to claim 4, wherein the positioning structure is detachably arranged on the mandrel.
6. The cylindrical grinding tool clamp suitable for the rotary target according to claim 5, wherein the positioning structure is provided with a first positioning portion and a second positioning portion, and the distance between the first positioning portion and the second positioning portion can be adjusted.
7. The cylindrical grinding tool clamp suitable for the rotary target according to claim 6, wherein the supporting mechanism is provided with an installation structure at an end of the first positioning portion and the second positioning portion away from each other, and the supporting portion is rotatably installed on the installation structure.
8. The cylindrical grinding tool clamp suitable for the rotary target according to claim 7, wherein the mounting structure is in threaded connection with the spindle.
9. The cylindrical grinding tool clamp suitable for the rotary target according to any one of claims 2 to 8, wherein the supporting portion comprises a rotating rod set and a top plate, one end of the rotating rod set is rotatably connected with the positioning structure and/or the core shaft, the other end of the rotating rod set is rotatably connected with the top plate, and the top plate is matched with the inner wall of the rotary target.
10. The cylindrical grinding tool clamp suitable for the rotary target according to claim 9, wherein an elastic plate is arranged on the end face of the top plate, which is attached to the rotary target, so as to elastically support the inner wall of the rotary target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285873.7U CN214770886U (en) | 2021-02-01 | 2021-02-01 | Cylindrical grinding tool clamp suitable for rotating target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120285873.7U CN214770886U (en) | 2021-02-01 | 2021-02-01 | Cylindrical grinding tool clamp suitable for rotating target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214770886U true CN214770886U (en) | 2021-11-19 |
Family
ID=78751514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120285873.7U Active CN214770886U (en) | 2021-02-01 | 2021-02-01 | Cylindrical grinding tool clamp suitable for rotating target |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214770886U (en) |
-
2021
- 2021-02-01 CN CN202120285873.7U patent/CN214770886U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8079122B2 (en) | Spacer jig for replacing spacer damper of overhead power lines and method of replacing spacer damper using the same | |
| BR112015003070B1 (en) | METHOD FOR INSTALLING A BRAKE PAD ON A DISC BRAKE, AND METHOD FOR REMOVING A BRAKE PAD FROM A DISC BRAKE | |
| CN214770886U (en) | Cylindrical grinding tool clamp suitable for rotating target | |
| CN215617712U (en) | Narrow and small space bolt fastening instrument of adjustable length | |
| CN102310212B (en) | Universal drill jig used for drilling among existing distribution holes on barrel | |
| CN114715616B (en) | Detachable desiccator relief valve | |
| CN210706039U (en) | High-efficient cover machine of gluing | |
| CN217439990U (en) | Temporary drill rod arranging device and drilling machine | |
| CN213733984U (en) | Printing roller convenient to replace | |
| US6601508B1 (en) | Device for clamping printing forms in clamping channels of reduced size | |
| CN218518576U (en) | Device for mounting air pipe bolt | |
| CN109175054A (en) | Inner-rotary type spinning machine | |
| CN214000643U (en) | Tire bead presetting device on inner side of tire building machine | |
| CN112324367B (en) | Drill rod disassembling method | |
| CN212486250U (en) | Motor end cover | |
| CN219444917U (en) | Special spanner for compression nut of turbine valve | |
| CN218947498U (en) | Hydraulic tappet installation mounting fixture | |
| CN217253380U (en) | Anticorrosive coating port cutting device | |
| CN212917938U (en) | Energy-saving automatic tapping machine for water pipe | |
| CN219190049U (en) | Cartridge valve extracting tool | |
| CN114346898B (en) | Grinding wheel dynamic balance adjusting device | |
| CN209139671U (en) | A kind of locking device stretching calibration equipment for plates of automobile | |
| CN214923613U (en) | A cylindricality material centre gripping positioner for construction | |
| CN112077803B (en) | Rotating shaft storage device based on rotating machinery and use method thereof | |
| CN217681637U (en) | Drill rod connecting and disassembling mechanism, propelling device and drilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |