CN112705970A

CN112705970A - Clamping device with adjustable V type

Info

Publication number: CN112705970A
Application number: CN202011469222.XA
Authority: CN
Inventors: 刘振才; 苏晓龙; 陈俊磊; 倪顺霞; 曹国彬; 李二生; 吴学军
Original assignee: Henan Pinggao Electric Co Ltd
Current assignee: Henan Pinggao Electric Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-04-27

Abstract

The invention provides a V-shaped adjustable clamping device, which comprises: a base; the first supporting block is arranged on the base and is provided with a first supporting inclined plane; the second supporting block is arranged on the base and provided with a second supporting inclined plane, and the second supporting inclined plane and the first supporting inclined plane are arranged in a V shape; the third supporting block is arranged on the base and provided with a third supporting inclined plane; the fourth supporting block is arranged on the base and provided with a fourth supporting inclined plane, and the fourth supporting inclined plane and the third supporting inclined plane are arranged in a V shape; a guide structure and a fixing structure are arranged between the base and the four supporting blocks. The invention enables the distance between the first supporting block and the third supporting block and the distance between the second supporting block and the fourth supporting block to be adjustable through the guide structure, thereby being suitable for cylinders with different lengths, and simultaneously enables the distance between the first supporting block and the second supporting block and the distance between the third supporting block and the fourth supporting block to be adjustable, thereby being suitable for cylinders with different diameters.

Description

Clamping device with adjustable V type

Technical Field

The invention relates to the technical field of cylinder machining clamping devices, in particular to a V-shaped adjustable clamping device.

Background

The central conductor is used as a core part in the general assembly of the static contact of the ultra-high voltage power station, and the central conductor with various large sizes needs to be processed in a processing central procedure, as shown in fig. 1, the existing central conductor is shown, and the whole central conductor is of a cylindrical structure. In order to facilitate clamping and fixing of the central conductor in the machining process, the central conductor is supported by four supporting blocks in the prior art, every two of the four supporting blocks form a group, and two supporting blocks in one group are arranged in a V shape to form a V-shaped supporting surface.

Because the specification of the central conductor is more, when the central conductor with different specifications is processed each time, the supporting blocks are required to be adjusted, in order to adapt to the central conductors with different diameters, the supporting distance between two supporting blocks in one group is required to be adjusted, and in order to adapt to the central conductors with different lengths, the supporting distance between two groups of supporting blocks is required to be adjusted. At present, the adjustment and the positioning operation of the supporting blocks are very troublesome, the same distance between two supporting blocks in one group and the same distance between the other group are difficult to ensure, and the two groups of supporting blocks are also difficult to align, so that the workpiece clamping time is too long, the efficiency is low, the completion warehousing time of the central conductor is seriously limited, and urgent solution needs to be provided.

Disclosure of Invention

The invention aims to provide a V-shaped adjustable clamping device which is convenient for adjusting a supporting distance.

In order to achieve the purpose, the V-shaped adjustable clamping device adopts the following technical scheme:

a clamping device with adjustable V type includes:

the base is of a cuboid structure;

the first supporting block is arranged on the base and provided with a first supporting inclined plane;

the second supporting block is arranged on the base and provided with a second supporting inclined plane, and the second supporting inclined plane and the first supporting inclined plane are arranged in a V shape and used for supporting one end of the cylinder;

the third supporting block is arranged on the base and provided with a third supporting inclined plane;

the fourth supporting block is arranged on the base and provided with a fourth supporting inclined plane, and the fourth supporting inclined plane and the third supporting inclined plane are arranged in a V shape and used for supporting the other end of the cylinder;

guide structures are respectively arranged among the base and the four support blocks, namely the first support block, the second support block, the third support block and the fourth support block, and the base is also provided with a fixing structure for fixing the four support blocks;

defining the direction between a first supporting block and a third supporting block or the direction between a second supporting block and a fourth supporting block as a first direction, wherein the first direction is the length direction of the base, the direction between the first supporting block and the second supporting block or the direction between the third supporting block and the fourth supporting block as a second direction, the second direction is the width direction of the base, and the first direction is vertical to the second direction;

the guide direction of the guide structure is a first direction, so that the distance between the first support block and the third support block and the distance between the second support block and the fourth support block are adjusted through the guide structure, the guide structure is arranged in a plurality of positions along the second direction, so that the four support blocks can be matched with the base through different guide structures, so that the distance between the first support block and the second support block and the distance between the third support block and the fourth support block can be changed, the fixing structure comprises fixing long holes arranged on the base and extending along the second direction or a plurality of fixing holes arranged at intervals along the second direction, and at least three rows of the fixing long holes or the fixing holes are arranged at intervals along the first direction;

or the guide direction of the guide structure is a second direction, so that the distance between the first support block and the second support block and the distance between the third support block and the fourth support block are adjusted through the guide structure, the guide structure is arranged in a plurality of directions along the first direction, so that the four support blocks can be matched with the base through different guide structures, so as to change the distance between the first support block and the third support block and between the second support block and the fourth support block, the fixing structure comprises a fixing long hole arranged on the base and extending along the first direction or a plurality of fixing holes arranged at intervals along the first direction, and at least three rows of the fixing long hole or the plurality of fixing holes are arranged at intervals along the second direction.

The beneficial effects of the above technical scheme are that: the second supporting inclined plane and the first supporting inclined plane which are arranged in a V shape can conveniently support one end of the cylinder, and the fourth supporting inclined plane and the third supporting inclined plane which are arranged in a V shape can conveniently support the other end of the cylinder, so that the cylinder can be stably supported; a guide structure and a fixing structure are arranged between the base and the four supporting blocks, if the guide direction of the guide structure is a first direction, the four supporting blocks can move along the first direction, so that the distance between the first supporting block and the third supporting block and the distance between the second supporting block and the fourth supporting block are adjusted to adapt to cylinders with different lengths; the guide structures are arranged in a plurality along the second direction, so that the four supporting blocks are matched with the base through different guide structures, and the distances between the first supporting block and the second supporting block and between the third supporting block and the fourth supporting block can be changed to adapt to cylinders with different diameters; the fixing structure comprises a fixing long hole which is arranged on the base and extends along the second direction or a plurality of fixing holes which are arranged at intervals along the second direction, so that the fixing structure can still be fixed on the base when the distance between the first supporting block and the second supporting block and the distance between the third supporting block and the fourth supporting block are changed; and at least three rows of fixing holes are arranged at intervals along the first direction, so that the first support block and the third support block and the second support block and the fourth support block can be still fixed on the base when the distance between the first support block and the third support block and the distance between the second support block and the fourth support block are changed. If the guiding direction of the guiding structure is the second direction, the analysis is not repeated here in the same principle.

In summary, in the V-shaped adjustable clamping device of the present invention, the guide structure and the fixing structure are arranged between the base and the four support blocks, so that the distances between the first support block and the third support block and between the second support block and the fourth support block are adjustable, thereby adapting to cylinders with different lengths, and the distances between the first support block and the second support block and between the third support block and the fourth support block are adjustable, thereby adapting to cylinders with different diameters.

Further, in order to facilitate the arrangement of the guide structure and the installation and removal of the support blocks, the guide structure comprises protrusions arranged on the base and grooves arranged on the four support blocks and matched with the protrusions, or the guide structure comprises protrusions arranged on the four support blocks and grooves arranged on the base and matched with the protrusions, and the shapes of the protrusions and the grooves meet the requirement that the four support blocks can be vertically and vertically installed on the base or removed from the base.

Furthermore, in order to facilitate processing and matching, the cross section of the protrusion is isosceles trapezoid, and the cross section of the groove is V-shaped.

Furthermore, in order to enlarge the adjustment range and facilitate the adjustment operation, the plurality of protrusions and the plurality of grooves are respectively and continuously arranged side by side, V-shaped grooves are formed between the adjacent protrusions, and isosceles trapezoid-shaped convex blocks are formed between the adjacent grooves.

Furthermore, in order to fix the four supporting blocks, communicating holes which are in one-to-one correspondence with the fixed long holes and communicated with the fixed long holes are formed in the base, the extending direction of the communicating holes is consistent with the extending direction of the fixed long holes, the four supporting blocks are fixed on the base through bolts respectively, and the fixing structure further comprises a nut block which is arranged in the communicating holes and used for enabling the bolts to penetrate through the fixed long holes and be in threaded connection with the nut block.

Further, for the convenience of the processing of intercommunicating pore and nut piece, the intercommunicating pore is the round hole, the nut piece includes the arc outer peripheral face with the intercommunicating pore inner wall adaptation, and the nut piece still includes the tangent plane face of processing threaded hole, and the tangent plane face is just to fixed slot hole setting.

Furthermore, in order to fix the four supporting blocks conveniently, the four supporting blocks are fixed on the base through bolts respectively, bolt through holes in the four supporting blocks penetrate through corresponding supporting inclined planes respectively, and the bolt through holes are all countersunk holes.

Furthermore, in order to fix the base on the machine tool workbench, two opposite side surfaces of the base are respectively provided with a pressure groove, and the pressure grooves are used for the base pressure plate on the machine tool workbench to stretch into and to be in press fit with the base pressure plate.

Furthermore, in order to conveniently clamp the workpiece, the V-shaped adjustable clamping device further comprises a workpiece pressing plate for pressing the workpiece, two ends of the workpiece pressing plate are respectively connected with a pull rod, and the other end of the pull rod is fixedly connected with a machine tool workbench.

Drawings

FIG. 1 is a block diagram of a center conductor of the prior art;

FIG. 2 is a view showing a state of the V-shaped adjustable clamping device of the present invention;

FIG. 3 is a perspective view of the V-shaped adjustable clamping device of the present invention;

FIG. 4 is a front view of a base of the V-shaped adjustable clamping device of the present invention;

FIG. 5 is a top view of a base of the V-shaped adjustable clamping device of the present invention;

FIG. 6 is a left side view of the base of the V-shaped adjustable clamping device of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a front view of a first support block of the V-shaped adjustable clamping device according to the present invention;

FIG. 9 is a top view of a first support block of the V-shaped adjustable clamping device according to the present invention;

FIG. 10 is a sectional view taken along line A-A in FIG. 9;

FIG. 11 is a front view of a nut block of the V-shaped adjustable clamping device according to the present invention;

FIG. 12 is a top view of a nut block of the V-shaped adjustable clamping device according to the present invention;

FIG. 13 is a left sectional view of the nut block of the V-shaped adjustable clamping device of the present invention.

In the figure: 100-a center conductor; 200-a machine tool workbench; 1-a first support block; 11-a first support ramp; 12-a groove; 13-bolt perforation; 2-a second support block; 3-a third support block; 4-a fourth support block; 5-a base; 51-a communication hole; 52-pressing groove; 53-fixing the slot; 54-a bump; 6-nut block; 61-arc peripheral surface; 62-plain section; 63-a threaded hole; 7-workpiece pressing plate; 8-a pull rod; 9-base platen.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

An embodiment of the V-shaped adjustable clamping device of the invention is shown in fig. 2 and 3, and includes a base 5, and a first supporting block 1, a second supporting block 2, a third supporting block 3, and a fourth supporting block 4 mounted on the base 5, where the base 5 is a rectangular parallelepiped structure, the first supporting block 1 and the second supporting block 2 are located at one end of the base 5 in the length direction, and the first supporting block 1 and the second supporting block 2 are arranged at intervals along the width direction of the base 5. The third supporting block 3 and the fourth supporting block 4 are located at the other end of the length direction of the base 5, and the third supporting block 3 and the fourth supporting block 4 are arranged at intervals in the width direction of the base 5.

The four support blocks have the same structure, wherein the first support block 1 and the second support block 2 are symmetrically arranged along the width direction of the base 5, and the third support block 3 and the fourth support block 4 are also symmetrically arranged along the width direction of the base 5. Referring to fig. 8 and 10, the first support block 1 has a first support slope 11, similarly, the second support block 2 has a second support slope, the third support block 3 has a third support slope, and the fourth support block 4 has a fourth support slope, wherein the second support slope and the first support slope 11 are arranged in a V-shape to support one end of a cylinder, as shown in fig. 2, the cylinder in this embodiment is a center conductor 100. The fourth supporting inclined plane and the third supporting inclined plane are also arranged in a V shape, and are used for supporting the other end of the center conductor 100, so that the center conductor 100 is stably supported.

Defining the direction between the first support block 1 and the third support block 3 or the direction between the second support block 2 and the fourth support block 4 as a first direction, obviously the first direction is the length direction of the base 5; the direction between the first support block 1 and the second support block 2 or the direction between the third support block 3 and the fourth support block 4 is a second direction, which is obviously the width direction of the base 5, and the first direction is perpendicular to the second direction.

Guide structures and fixing structures for fixing the four supporting blocks are respectively arranged among the base 1 and the four supporting blocks, namely the first supporting block 1, the second supporting block 2, the third supporting block 3 and the fourth supporting block 4.

Specifically, as shown in fig. 5, 6 and 7, the guiding structure includes a protrusion 54 disposed on the top surface of the base 5, and the protrusion 54 extends along a first direction, i.e., the guiding direction of the guiding structure is the first direction. As shown in fig. 7, the projections 54 have an isosceles trapezoid cross section, and the plurality of projections 54 are continuously arranged side by side in the second direction such that V-shaped grooves are formed between adjacent projections 54. Preferably, the included angle of the V-shaped groove is 60 degrees and the height of the protrusion 54 is 2.5 mm.

The guiding structure further includes grooves respectively disposed on the four supporting blocks and engaged with the protrusions 54, taking the first supporting block 1 as an example, as shown in fig. 8 and 10, the grooves 12 also extend along the first direction, the cross sections of the grooves 12 are V-shaped, and the grooves 12 are continuously arranged side by side along the second direction, so that isosceles trapezoid-shaped protrusions are formed between adjacent grooves 12. The guiding form between the supporting block and the base 5 is equivalent to the engagement of teeth, which not only facilitates the sliding of the supporting block on the base 5 along the first direction, but also the shape of the protrusion 54 and the groove 12 is such that the four supporting blocks can be vertically installed on the base 5 or removed from the base 5, thereby facilitating the installation of the supporting blocks and the change of the position.

Through the arrangement, the distance between the first supporting block 1 and the third supporting block 3 and between the second supporting block 2 and the fourth supporting block 4 can be adjusted through the guide structure, so that the cable connector is suitable for central conductors with different lengths. And, the guide structure is arranged along the second direction and is plurally arranged, make four supporting shoes can cooperate with base 5 through different guide structure, thus change the interval between first supporting shoe 1 and second supporting shoe 2, between third supporting shoe 3 and the fourth supporting shoe 4, in order to adapt to the centre conductor of different diameters.

As shown in fig. 5, the fixing structure includes fixing long holes 53 extending in the second direction and provided on the base 5, the fixing long holes 53 are provided on the top surface of the base 5, and four rows of the fixing long holes 53 are arranged at intervals in the first direction, so that when the distances between the first support block 1 and the third support block 3 and between the second support block 2 and the fourth support block 4 are adjusted, the first support block 1 and the third support block 3, and the second support block 2 and the fourth support block 4 are slid over the corresponding fixing long holes 53.

As shown in fig. 4, the base 5 is provided with communication holes 51 that communicate with the fixing long holes 53 in a one-to-one correspondence, and the extending direction of the communication holes 51 coincides with the extending direction of the fixing long holes 53. As shown in fig. 2 and 3, the above-described fixing structure further includes a nut block 6 provided in the communication hole 51. Specifically, the communication hole 51 is a circular hole, and as shown in fig. 11, 12 and 13, the nut block 6 includes an arc-shaped outer peripheral surface 61 adapted to an inner wall of the communication hole 51, the nut block 6 further includes a flat cut surface 62 processed with a threaded hole 63, and the flat cut surface 62 is disposed opposite to the fixing long hole 53.

The four support blocks are respectively fixed on the base 5 by bolts (not shown in the figures), bolt through holes on the four support blocks respectively penetrate through the corresponding support inclined planes, taking the first support block 1 as an example, as shown in fig. 9 and 10, bolt through holes 13 on the first support block 1 penetrate through the first support inclined planes 11 up and down, and the bolt through holes 13 are countersunk holes to hide the heads of the bolts. And the bolt penetration holes 13 are provided in two in order to secure the fixing effect.

As shown in fig. 4 and 6, the opposite side surfaces of the base 5 are respectively provided with a pressing groove 52, and as shown in fig. 2 and 3, the pressing groove 52 is used for allowing the base pressing plate 9 on the machine tool workbench 200 to extend into and to be in press fit with the base pressing plate 9, so as to fix the base 5 on the machine tool workbench 200. In addition, the V-shaped adjustable clamping device further comprises a workpiece pressing plate 7 for pressing the central conductor 100, two ends of the workpiece pressing plate 7 are respectively connected with a pull rod 8, and the bottom end of the pull rod 8 is fixedly connected with the machine tool workbench 200 to clamp the central conductor 100.

The working principle of the V-shaped adjustable clamping device is as follows:

when the device is used, the nut block 6 is installed in the appropriate communication hole 51 according to the length of the central conductor 100 to be processed, two nut blocks 6 are used for one supporting block, the first supporting block 1, the second supporting block 2, the third supporting block 3 and the fourth supporting block 4 are placed at appropriate positions on the base 5 according to the diameter of the central conductor 100 to be processed, then bolts penetrate through the supporting blocks and the fixing long holes in the base and are in threaded connection with the nut block 6, and the four supporting blocks are fixed.

In the use, when the position of four supporting shoes need be adjusted to the different central conductor of processing, if need change between first supporting shoe and the second supporting shoe, the interval between third supporting shoe and the fourth supporting shoe, in order to adapt to the central conductor of different diameters, then need not hard up the bolt, because the size of arch and recess is smaller, only need lift up slightly or hang first supporting shoe or second supporting shoe, place suitable arch again, can change both intervals, third supporting shoe and fourth supporting shoe are vice versa, fastening bolt can at last. If need change between first supporting shoe and the third supporting shoe, the interval between second supporting shoe and the fourth supporting shoe to when adapting to the central conductor of different length, then need tear the bolt open, make four supporting shoes slide along first direction, slide to suitable fixed slot hole top, again with the nut piece cooperation fix can.

In other embodiments of the V-shaped adjustable clamping device, the workpiece to be machined may not be a central conductor, but may be another cylindrical part.

In other embodiments of the V-shaped adjustable clamping device, the V-shaped adjustable clamping device may not include a workpiece pressing plate, and the structure for pressing the workpiece belongs to the structure of the machine tool.

In other embodiments of the V-shaped adjustable clamping device, the base is not provided with the pressure groove, and the base is fixed on the machine tool workbench by using the bolt, and at this time, only the bolt through hole needs to be arranged on the base.

In other embodiments of the V-shaped adjustable clamping device, when the supporting block is fixed on the base by the bolt, the bolt through hole may not penetrate through the supporting slope, for example, a fixing plate is integrally provided at the bottom of the supporting block, and the bolt through hole is provided on the fixing plate, and at this time, the bolt through hole may not be a counter bore.

In other embodiments of the V-shaped adjustable clamping device, the communication hole may be a square hole, and in this case, the nut block is a square block.

In other embodiments of the V-shaped adjustable clamping device, the base is not provided with long fixing holes but with a plurality of fixing holes arranged at intervals along the second direction, the fixing holes are directly threaded holes to adjust the distance between the first supporting block and the second supporting block and the distance between the third supporting block and the fourth supporting block, and the plurality of fixing holes are arranged at intervals along the first direction with at least three rows, so that when the distance between the first supporting block and the third supporting block and the distance between the second supporting block and the fourth supporting block are changed, the fixing holes can still be fixed on the base, and at this time, the base is not required to be provided with communication holes.

In other embodiments of the V-shaped adjustable clamping device, the plurality of protrusions and the plurality of grooves may not be arranged continuously, but rather may be spaced relatively far apart.

In other embodiments of the V-shaped adjustable clamping device, the cross section of the protrusion may also be V-shaped, and the cross section of the groove is still V-shaped; or the cross section of the bulge can be rectangular or square, and in this case, the cross section of the groove can also be rectangular or square.

In other embodiments of the V-shaped adjustable clamping device, the supporting block may be provided with a protrusion, and the base may be provided with a groove matched with the protrusion.

In other embodiments of the V-shaped adjustable clamping device, the shape of the protrusion and the groove may not be satisfactory for the four support blocks to be mounted on the base or removed from the base vertically, for example, the protrusion and the groove are both T-shaped or dovetail-shaped, and when the support block is mounted or removed, the support block needs to be mounted or dismounted from the side of the base.

In other embodiments of the V-shaped adjustable clamping device, the guiding direction of the guiding structure may be a second direction, so that the distance between the first supporting block and the second supporting block and the distance between the third supporting block and the fourth supporting block are adjusted by the guiding structure, the guiding structure is disposed in plural along the first direction, so that the four supporting blocks can be matched with the base through different guiding structures, so as to change the distance between the first supporting block and the third supporting block and between the second supporting block and the fourth supporting block, at this time, the fixing structure includes a fixing long hole extending along the first direction and plural fixing holes disposed at intervals along the first direction, and the fixing long hole or the plural fixing holes are disposed in at least three rows at intervals along the second direction.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The utility model provides a clamping device with adjustable V type which characterized in that includes:

the base is of a cuboid structure;

2. The V-shaped adjustable clamping device as claimed in claim 1, wherein the guiding structure comprises protrusions arranged on the base and grooves arranged on the four supporting blocks and matched with the protrusions, or the guiding structure comprises protrusions arranged on the four supporting blocks and grooves arranged on the base and matched with the protrusions, and the protrusions and the grooves are shaped so that the four supporting blocks can be vertically installed on the base or removed from the base.

3. The V-shaped adjustable clamping device as claimed in claim 2, wherein the cross section of the protrusion is isosceles trapezoid, and the cross section of the groove is V-shaped.

4. The V-shaped adjustable clamping device as claimed in claim 3, wherein the plurality of protrusions and the plurality of grooves are respectively and continuously arranged side by side, V-shaped grooves are formed between adjacent protrusions, and isosceles trapezoid-shaped protrusions are formed between adjacent grooves.

5. The V-shaped adjustable clamping device according to any one of claims 1 to 4, wherein communication holes are formed in the base and are in one-to-one correspondence with the fixing long holes, the extension direction of each communication hole is identical to that of each fixing long hole, the four support blocks are respectively fixed on the base through bolts, and the fixing structure further comprises nut blocks arranged in the communication holes, so that the bolts can penetrate through the fixing long holes to be in threaded connection with the nut blocks.

6. The V-shaped adjustable clamping device as claimed in claim 5, wherein the communication hole is a circular hole, the nut block comprises an arc-shaped peripheral surface matched with the inner wall of the communication hole, the nut block further comprises a plain surface processed with a threaded hole, and the plain surface is opposite to the fixing long hole.

7. The V-shaped adjustable clamping device as claimed in any one of claims 1 to 4, wherein the four supporting blocks are respectively fixed on the base by bolts, bolt through holes on the four supporting blocks respectively penetrate through the corresponding supporting inclined surfaces, and the bolt through holes are all countersunk holes.

8. The V-shaped adjustable clamping device as claimed in any one of claims 1 to 4, wherein the opposite side surfaces of the base are respectively provided with a pressing groove, and the pressing grooves are used for a base pressing plate on a machine tool workbench to extend into and to be in press fit with the base pressing plate.

9. The V-shaped adjustable clamping device according to any one of claims 1 to 4, further comprising a workpiece pressing plate for pressing a workpiece, wherein two ends of the workpiece pressing plate are respectively connected with a pull rod, and the other end of the pull rod is fixedly connected with a machine tool workbench.