CN215394819U - Improved self-centering clamp - Google Patents
Improved self-centering clamp Download PDFInfo
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- CN215394819U CN215394819U CN202121607039.1U CN202121607039U CN215394819U CN 215394819 U CN215394819 U CN 215394819U CN 202121607039 U CN202121607039 U CN 202121607039U CN 215394819 U CN215394819 U CN 215394819U
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Abstract
The utility model discloses an improved self-centering clamp which comprises a fixed base, wherein side fixed blocks are fixed on the top surfaces of the front part and the rear part of the fixed base, a middle supporting block is fixed in the middle of the top surface of the fixed base, a placing groove is formed in the middle of the top surface of the middle supporting block, a middle part of a middle adjusting screw rod is inserted and sleeved in the placing groove, threaded rod parts of the left part and the right part of the middle adjusting screw rod are screwed in middle screwed through holes of corresponding clamping movable blocks, and the two clamping movable blocks are positioned between the two side fixed blocks; the fixing base, the side fixing blocks and the middle supporting block are all of detachable structures, when any part of the fixing base is worn or damaged, only the corresponding part needs to be replaced, and the fixing base, the side fixing blocks and the middle supporting block are convenient to replace, low in replacement cost and good in effect.
Description
The technical field is as follows:
the utility model relates to the technical field of clamp tooling equipment, in particular to an improved self-centering clamp.
Background art:
the vice is a fixture often used in processing, generally comprises a vice body, a base, a guide nut, a lead screw, a vice jaw body and the like, is generally provided with movable pliers and fixed pliers, and is in transmission connection with the movable pliers through the lead screw, so that the movable pliers are close to the fixed pliers, and further the function of the fixture is realized.
Chinese patent No. 201921635240.3 is a self-centering anchor clamps, and it includes base, lead screw and two clamp splices, be equipped with the lead screw groove that corresponds with the lead screw on the base, the lead screw is located the lead screw inslot, be equipped with the wave spout on the base inside wall, be equipped with the slide that corresponds with the wave spout on the clamp splice, the both ends of lead screw respectively are equipped with the external screw thread that the line is opposite, be equipped with the internal thread that corresponds with the external screw thread on the clamp splice, be equipped with first material portion and the second of holding in the palm on the clamp splice and hold in the palm material portion, the length of first material portion of holding in the palm is greater than the second and holds in the palm material portion, first material portion and the second of holding in the palm is equipped with the sand grip between the material portion, sand grip both sides limit is equipped with the more than one outside dogtooth that extends. Its base is integral type shaping structure, and when using, the wave slide of its clamp splice can remove along wave spout, and its live time is long after, and the spout is worn and torn easily, and at this moment, just need change whole base, and the replacement cost is high, and the effect is poor.
Moreover, the screw rod is also positioned in the screw rod groove to rotate, the screw rod groove is easy to wear after being used for a long time, the screw rod groove is also directly formed on the base, the whole base can only be replaced at the moment, and the replacement cost is quite high.
The utility model has the following contents:
the utility model aims to overcome the defects of the prior art and provides an improved self-centering clamp, wherein a fixed base, a side fixed block and a middle supporting block of the improved self-centering clamp are all of detachable structures, when any part of the clamp is worn or damaged, only a corresponding part needs to be replaced, and the clamp is convenient to replace, low in replacement cost and good in effect.
The scheme for solving the technical problems is as follows:
an improved self-centering clamp comprises a fixed base, wherein side fixed blocks are fixed on the top surfaces of the front part and the rear part of the fixed base, a middle supporting block is fixed in the middle of the top surface of the fixed base, a placing groove is formed in the middle of the top surface of the middle supporting block, the middle of a middle adjusting screw rod is inserted and sleeved in the placing groove, threaded rod parts of the left part and the right part of the middle adjusting screw rod are screwed in middle screw joint through holes of corresponding clamping movable blocks, and the two clamping movable blocks are located between the two side fixed blocks;
the front side wall and the rear side wall of the clamping moving block are provided with convex guide parts, and the convex guide blocks are inserted in the long through grooves formed in the inner side walls of the corresponding side fixing blocks;
horizontal material supporting plate parts are formed at the tops of the two clamping moving blocks, long protruding parts are formed in the middle of the top surfaces of the horizontal material supporting plate parts, and anti-skidding tooth-shaped protruding parts are formed on the side walls of the long protruding parts.
The front part and the rear part of the top surface of the fixed base are both provided with transverse clamping grooves extending left and right, and the lower protruding parts of the side fixed blocks are inserted in the corresponding transverse clamping grooves;
the middle slot that extends around unable adjustment base's top surface middle part shaping has, the front end and the rear end of middle slot all communicate with each other with the horizontal draw-in groove that corresponds, the lower part plug bush of middle supporting shoe is in middle slot, side fixed block middle part bottom surface shaping has the middle part that upwards extends to lead to the groove, the front end and the rear end plug bush of middle supporting shoe lead to the groove in the middle part of the side fixed block that corresponds, the lower part bellying bottom surface of side fixed block presses on the bottom surface of horizontal draw-in groove, the bottom surface of middle part supporting shoe presses on the bottom surface of middle part slot, the front end and the rear end top surface of middle part supporting shoe press on the top surface that lead to the groove in corresponding middle part.
And the side fixing block and the middle supporting block are fixedly connected to the fixing base through bolts.
Outer hexagonal rotating parts are formed at the left end and the right end of the middle adjusting screw rod, and inner hexagonal holes are formed in the middle of the end face of each outer hexagonal rotating part.
The middle bottom surface of the middle adjusting screw rod is tightly attached to the inner side wall of the placing groove.
The inner side wall of the placing groove is an arc-shaped wall surface, and the outer side wall of the middle part of the middle adjusting screw rod is an annular wall surface.
The front end and the rear end of the horizontal material supporting plate part are positioned above the two side fixing blocks, and the bottom surfaces of the front end and the rear end of the horizontal material supporting plate part are tightly attached to the top surfaces of the corresponding side fixing blocks.
The utility model has the following outstanding effects:
compared with the prior art, the fixing base, the side fixing blocks and the middle supporting block are all of detachable structures, when any one part of the fixing base, the side fixing blocks and the middle supporting block is worn or damaged, only corresponding parts need to be replaced, and the fixing base, the side fixing blocks and the middle supporting block are convenient to replace, low in replacement cost and good in effect.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention with the anchor bolts omitted;
fig. 3 is a schematic view of the angle-changing structure of fig. 2.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings and specific preferred embodiments so that the advantages and features of the present invention can be more readily understood by those skilled in the art, and these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.
In an embodiment, as shown in fig. 1 to 3, an improved self-centering fixture includes a fixed base 10, side fixed blocks 20 are fixed on top surfaces of a front portion and a rear portion of the fixed base 10, a middle supporting block 30 is fixed on a middle portion of a top surface of the fixed base 10, a placing groove 31 is formed in a middle portion of a top surface of the middle supporting block 30, a middle portion of a middle adjusting screw 40 is inserted into the placing groove 31, threaded rod portions of a left portion and a right portion of the middle adjusting screw 40 are screwed into middle screw through holes of corresponding clamping moving blocks 50, and two clamping moving blocks 50 are located between the two side fixed blocks 20;
the front and rear side walls of the clamping moving block 50 are formed with convex guide parts 51, and the convex guide blocks 51 are inserted in the long through grooves 21 formed on the inner side walls of the corresponding side fixing blocks 20;
a horizontal material supporting plate part 52 is formed at the top of the two clamping moving blocks 50, a long convex part 53 is formed in the middle of the top surface of the horizontal material supporting plate part 52, and an anti-skid tooth-shaped convex part 54 is formed on the side wall of the long convex part 53.
Further, the front part and the rear part of the top surface of the fixed base 10 are both formed with horizontal slots 11 extending left and right, and the lower protruding part of the side fixed block 20 is inserted into the corresponding horizontal slot 11;
the middle of the top surface of the fixed base 10 is formed with a middle slot 13 extending back and forth, the front end and the rear end of the middle slot 13 are communicated with the corresponding transverse clamping grooves 11, the lower part of the middle supporting block 30 is inserted in the middle slot 13, a middle through groove 22 extending upwards is formed in the middle bottom surface of the side fixing block 20, the front end and the rear end of the middle supporting block 30 are inserted in the middle through groove 22 of the corresponding side fixing block 20, the bottom surface of the lower protruding part of the side fixing block 20 is pressed on the bottom surface of the transverse clamping groove 11, the bottom surface of the middle supporting block 30 is pressed on the bottom surface of the middle through groove 22, and the front end and the rear end of the middle supporting block 30 are pressed on the top surface of the corresponding middle through groove 22.
Further, the side fixing blocks 20 and the middle supporting blocks 30 are fixedly connected to the fixing base 10 by bolts.
Further, outer hexagonal rotating portions 41 are formed at the left end and the right end of the middle adjusting screw 40, and an inner hexagonal hole 42 is formed in the middle of the end face of each outer hexagonal rotating portion 41.
Furthermore, the middle bottom surface of the middle adjusting screw 40 is tightly attached to the inner side wall of the placing groove 31.
Further, the inner side wall of the placing groove 31 is an arc-shaped wall surface, the middle outer side wall of the middle adjusting screw 40 is an annular wall surface, and the annular wall surface is matched with the arc-shaped wall surface.
Further, a plurality of stepped connection through holes 131 are formed on the bottom surfaces of the transverse clamping grooves 11 and the middle insertion groove 13, connection screw holes are formed on the bottom surfaces of the middle supporting block 30 and the side fixing block 20, the connection screw holes are vertically aligned and communicated with the corresponding stepped connection through holes 131, the upper ends of the screw portions of the fixing bolts are screwed in the corresponding connection screw holes, the lower portions of the screw portions of the fixing bolts are inserted in the upper hole sections of the corresponding stepped connection through holes 131, the head portions of the fixing bolts are inserted in the lower hole sections of the corresponding stepped connection through holes 131, and the top surfaces of the head portions of the fixing bolts are pressed against the top surfaces of the lower hole sections of the corresponding stepped connection through holes 131. The fixing bolts are not shown in the drawings.
Further, the front end and the rear end of the horizontal material supporting plate part 52 are located above the two side fixing blocks 20, and the bottom surfaces of the front end and the rear end of the horizontal material supporting plate part 52 are closely attached to the top surfaces of the corresponding side fixing blocks 20.
When the clamping device is used, the rotating part of the inner hexagonal wrench is inserted into the inner hexagonal hole 42, so that the middle adjusting screw rod 40 can rotate, the two clamping moving blocks 50 can move in the middle or move outwards at the same time, different products can be clamped, the two clamping moving blocks 50 can move at the same distance, and the clamping effect can be guaranteed;
and the fixed base 10, the side fixed blocks 20 and the middle supporting block 30 are all detachable structures, when any part is worn or damaged, only corresponding parts need to be replaced, and the detachable structure is convenient to replace, low in replacement cost and good in effect.
The above embodiments are only for illustrating the utility model and are not to be construed as limiting the utility model, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, therefore, all equivalent technical solutions also belong to the scope of the utility model, and the scope of the utility model is defined by the claims.
Claims (7)
1. An improved self-centering clamp comprising a fixed base (10), characterized in that: side fixing blocks (20) are fixed on the top surfaces of the front portion and the rear portion of the fixing base (10), a middle supporting block (30) is fixed in the middle of the top surface of the fixing base (10), a placing groove (31) is formed in the middle of the top surface of the middle supporting block (30), the middle of a middle adjusting screw rod (40) is inserted into the placing groove (31), threaded rod portions of the left portion and the right portion of the middle adjusting screw rod (40) are in threaded connection with middle threaded through holes of corresponding clamping moving blocks (50), and the two clamping moving blocks (50) are located between the two side fixing blocks (20);
the front side wall and the rear side wall of the clamping moving block (50) are provided with protruding guide parts (51), and the protruding guide parts (51) are inserted in long through grooves (21) formed in the inner side walls of the corresponding side fixing blocks (20);
horizontal material supporting plate parts (52) are formed at the tops of the two clamping moving blocks (50), long protruding parts (53) are formed in the middle of the top surfaces of the horizontal material supporting plate parts (52), and anti-skidding tooth-shaped protruding parts (54) are formed on the side walls of the long protruding parts (53).
2. An improved self-centering fixture as defined in claim 1, wherein: the front part and the rear part of the top surface of the fixed base (10) are respectively provided with a transverse clamping groove (11) extending left and right, and the lower protruding part of the side fixed block (20) is inserted in the corresponding transverse clamping groove (11);
the middle slot (13) that extends around the top surface middle part shaping of unable adjustment base (10) has, the front end and the rear end of middle slot (13) all communicate with each other with horizontal draw-in groove (11) that correspond, the lower part plug bush of middle supporting shoe (30) is in middle slot (13), the middle part bottom surface shaping of side fixed block (20) has the middle part that upwards extends to lead to groove (22), the middle part that the front end and the rear end plug bush of middle supporting shoe (30) lead to the groove (22) in the middle part of corresponding side fixed block (20), the bottom surface of the lower part bellying of side fixed block (20) is pressed on the bottom surface of horizontal draw-in groove (11), the bottom surface of middle supporting shoe (30) is pressed on the bottom surface that the groove (22) were led to in the middle part, the front end and the rear end top surface of middle supporting shoe (30) are pressed on the top surface that leads to the groove (22) in the middle part of correspondence.
3. An improved self-centering fixture, as defined in claim 2, wherein: the side fixing blocks (20) and the middle supporting blocks (30) are fixedly connected to the fixing base (10) through bolts.
4. An improved self-centering fixture as defined in claim 1, wherein: outer hexagonal rotating parts (41) are formed at the left end and the right end of the middle adjusting screw rod (40), and inner hexagonal holes (42) are formed in the middles of the end surfaces of the outer hexagonal rotating parts (41).
5. An improved self-centering fixture as defined in claim 1, wherein: the bottom surface of the middle part of the middle adjusting screw rod (40) is tightly attached to the inner side wall of the placing groove (31).
6. An improved self-centering fixture, as defined in claim 5, wherein: the inner side wall of the placing groove (31) is an arc-shaped wall surface, and the outer side wall of the middle part of the middle adjusting screw rod (40) is an annular wall surface.
7. An improved self-centering fixture as defined in claim 1, wherein: the front end and the rear end of the horizontal material supporting plate part (52) are positioned above the two side fixing blocks (20), and the bottom surfaces of the front end and the rear end of the horizontal material supporting plate part (52) are tightly attached to the top surfaces of the corresponding side fixing blocks (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121607039.1U CN215394819U (en) | 2021-07-15 | 2021-07-15 | Improved self-centering clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121607039.1U CN215394819U (en) | 2021-07-15 | 2021-07-15 | Improved self-centering clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215394819U true CN215394819U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121607039.1U Active CN215394819U (en) | 2021-07-15 | 2021-07-15 | Improved self-centering clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215394819U (en) |
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2021
- 2021-07-15 CN CN202121607039.1U patent/CN215394819U/en active Active
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