CN216759056U - Hydraulic tool capable of self-centering clamping - Google Patents
Hydraulic tool capable of self-centering clamping Download PDFInfo
- Publication number
- CN216759056U CN216759056U CN202123091560.7U CN202123091560U CN216759056U CN 216759056 U CN216759056 U CN 216759056U CN 202123091560 U CN202123091560 U CN 202123091560U CN 216759056 U CN216759056 U CN 216759056U
- Authority
- CN
- China
- Prior art keywords
- self
- holes
- box body
- groove
- centering clamping
- 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
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model provides a hydraulic tool capable of self-centering clamping, which comprises: an oil cylinder; the box body is vertically provided with a through groove; the linkage assembly is connected to a piston rod of the oil cylinder and is arranged in the through groove; the two fixture fixing blocks are symmetrically and slidably connected to the top end of the box body and respectively connected to the linkage assemblies to realize synchronous opening and closing movement; and the two clamps are fixedly connected with the clamp fixing blocks in a one-to-one correspondence manner and are symmetrically arranged. The two clamps are movable dies, and when the oil cylinder drives the two clamps to be synchronously closed through the linkage assembly, the blank is clamped tightly, the center of the blank is self-adapted, and therefore machining eccentricity caused by blank expansion is eliminated.
Description
[ technical field ] A
The utility model relates to the field of water heating bathrooms, in particular to a hydraulic tool capable of self-centering clamping.
[ background of the utility model ]
The mode of the existing water heating part processing tool is a traditional dovetail type moving and fixing die, namely, a fixed die and a moving die are arranged at one side. Because hot-water heating spare blank adopts the mould casting mode, the mould causes the mould inner chamber wearing and tearing because of brush mould, mould clearance etc. in process of production, leads to the blank to progressively grow thereupon, when adopting current traditional mode clamping, blank center can be towards the skew of movable mould direction, if when processing holes such as delivery port, water inlet or the case of tap, leads to the blank processing back, and the wall thickness is inhomogeneous, and the hole also takes place off-centre.
Because the abrasion of the inner cavity of the die is a gradual change process, even the blank of the same batch of products is different in size after being enlarged, and the blank is produced in large batch, if the eccentric problem is solved by adjusting the processing position of the cutter at any time, frequent adjustment is needed in the production process according to the change of the blank, the efficiency is obviously too low, the cost is too high, and the use requirement of the large batch production is not met, so that the re-centering cannot be realized by adjusting the processing position of the cutter in the actual production process.
[ Utility model ] content
The technical problem to be solved by the utility model is to provide a hydraulic tool capable of self-centering clamping, wherein moving dies are adopted on two sides to be self-adaptive to the center of a blank, so that the machining eccentricity caused by the expansion influence of the blank is eliminated.
The utility model is realized by the following steps: the utility model provides a can be from hydraulic tool of centering clamping, includes:
an oil cylinder;
the box body is vertically provided with a through groove;
the linkage assembly is connected to a piston rod of the oil cylinder and is arranged in the through groove;
the two clamp fixing blocks are symmetrically and slidably connected to the top end of the box body and are respectively connected to the linkage assembly to realize synchronous opening and closing movement;
the two clamps are provided with a positioning groove, are fixedly connected with the clamp fixing blocks in a one-to-one correspondence mode and are symmetrically arranged.
Further, the device also comprises two linear rails;
the top end of the box body is provided with a horizontal linear rail sliding chute;
the two linear rails are connected in the horizontal linear rail sliding grooves in a sliding manner and are symmetrically arranged;
the fixture fixing blocks are fixedly connected to the linear rails in a one-to-one correspondence mode.
Further, the linkage assembly includes:
the connecting block comprises a cylinder; the cylinder is provided with a vertical accommodating groove, and the top end, the left side and the right side of the vertical accommodating groove are respectively open; a stud is convexly arranged at the center of the bottom end of the cylinder;
the two connecting levers are hinged in the vertical accommodating groove, are arranged in a crossed and symmetrical mode, and are hinged to the linear rails in a one-to-one correspondence mode;
the center of a piston rod of the oil cylinder is provided with a piston rod internal thread hole;
the stud is locked into the internal thread hole of the piston rod.
Furthermore, arc-shaped grooves which are symmetrically arranged are also formed in the front side and the rear side of the through groove of the box body respectively;
the cylinder is arranged in the two arc-shaped grooves.
Further, still include: a plurality of first bolts and a plurality of second bolts;
the clamp fixing block comprises a vertical part and a horizontal part which are fixedly connected together;
the horizontal part is provided with a plurality of vertical first through holes;
the wire rail is provided with a plurality of first screw holes, and the first screw holes, the first bolts and the first through holes are equal in number;
the first bolts penetrate through the first through holes in a one-to-one correspondence mode and then are locked into the first screw holes;
the vertical part is provided with a plurality of vertical second through holes;
the clamp is provided with a plurality of second screw holes, and the number of the second screw holes, the number of the second bolts and the number of the second through holes are equal;
and the second bolts penetrate through the second through holes in a one-to-one correspondence manner and then are locked into the second screw holes.
Furthermore, the wire track fixing device further comprises a middle limiting plate which is fixedly connected to the box body and is positioned between the two wire tracks.
Furthermore, a plurality of third screw holes are respectively formed in the front outer side face and the rear outer side face of the box body.
The utility model has the advantages that: the utility model provides a hydraulic tool capable of self-centering clamping, which comprises: an oil cylinder; the box body is vertically provided with a through groove; the linkage assembly is connected to a piston rod of the oil cylinder and is arranged in the through groove; the two clamp fixing blocks are symmetrically and slidably connected to the top end of the box body and are respectively connected to the linkage assembly to realize synchronous opening and closing movement; the two clamps are fixedly connected to the clamp fixing blocks in a one-to-one correspondence mode and are symmetrically arranged. The two clamps are movable dies, and when the oil cylinder drives the two clamps to be synchronously closed through the linkage assembly, the blank is clamped tightly and the center of the blank is self-adapted, so that the machining eccentricity caused by the expansion influence of the blank is eliminated.
[ description of the drawings ]
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a perspective view of a hydraulic tool according to the present invention.
Fig. 2 is a front view of the hydraulic tool of the present invention.
Fig. 3 is a side view of a hydraulic tool according to the present invention.
Fig. 4 is a schematic diagram of the internal structure of the hydraulic tool according to the present invention.
FIG. 5 is a schematic view showing the connection of the cylinder, the linkage assembly, the fixture fixing block and the fixture according to the present invention.
Fig. 6 is a perspective view of the connector block of the present invention.
Fig. 7 is a first perspective view of the case of the present invention.
Fig. 8 is a second perspective view of the case of the present invention.
Fig. 9 is a first perspective view of the wire track of the present invention.
Fig. 10 is a second perspective view of the wire track of the present invention.
Fig. 11 is a first perspective view of the jig fixing block of the present invention.
Fig. 12 is a second perspective view of the jig fixing block of the present invention.
Fig. 13 is a first perspective view of the clip of the present invention.
Fig. 14 is a second perspective view of the clip of the present invention.
Fig. 15 is a perspective view of a hydraulic tool of the present invention clamping a workpiece.
Description of reference numerals:
the oil cylinder 1 is provided with a piston rod internal thread hole 11;
the box body 2, a through groove 21, a horizontal linear rail sliding groove 22, an arc-shaped groove 23, a middle limiting plate 24 and a third screw hole 25;
the linkage assembly 3, the connecting block 31, the cylinder 311, the vertical accommodating groove 3111 and the stud 3112; a connecting lever 32;
the fixture fixing block 4, a second semi-transverse limiting groove 41, a vertical part 42, a second through hole 421, a horizontal part 43 and a first through hole 431;
the fixture 5, a positioning groove 51, a first semi-transverse limiting groove 52, a vertical limiting groove 53 and a second screw hole 54;
a cuboid limiting strip 6;
a wire rail 7, a first screw hole 71;
a workpiece 100.
[ detailed description ] embodiments
In the description of the present invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The general concept of the utility model is as follows:
(1) the two fixtures 5 are movable molds, the oil cylinder 1 drives the two fixtures 5 to synchronously open and close through the linkage assembly 3, a blank workpiece is loosened when the fixtures are opened, and the blank workpiece is clamped when the fixtures are closed;
when the two clamps 5 are synchronously closed, the blank workpiece is clamped, and the center of the blank workpiece is self-adapted, so that the machining eccentricity caused by the expansion influence of the blank is eliminated.
(2) The third screw hole 25 may be used to mount the case 2 on a machine.
(3) The arc-shaped groove 23 can guide the up-and-down sliding of the cylinder 311, so that the movement precision and the stability are improved.
Please refer to fig. 1 to 15.
The utility model provides a can be from hydraulic tool of centering clamping, includes:
an oil cylinder 1;
the box body 2 is vertically provided with a through groove 21;
the linkage assembly 3 is connected with a piston rod of the oil cylinder 1 and is arranged in the through groove 21; the linkage assembly 3 is used for connecting the oil cylinder 1 and the clamp fixing block 4.
The two clamp fixing blocks 4 are symmetrically and slidably connected to the top end of the box body 2 and are respectively connected to the linkage assembly 3 to realize synchronous opening and closing movement;
anchor clamps 5 have two, are equipped with a constant head tank 51, and work piece 100 is installed in constant head tank 51, embodiment as shown in the figure constant head tank 51 adopts arc, can more laminate with the surface of tap blank, and convenient the clamp is tight to one-to-one fixed connection in anchor clamps fixed block 4, and be symmetrical arrangement. In a specific embodiment, the back of the clamp 5 may further be provided with a first semi-horizontal limiting groove 52 and a vertical limiting groove 53; the fixture fixing block 4 is further provided with a second semi-transverse limiting groove 41. The fixture fixing block 4 is embedded into the vertical limiting groove 53, the first semi-transverse limiting groove 52 and the second semi-transverse limiting groove 41 are combined into a complete transverse limiting groove, and the cuboid limiting strip 6 is embedded into the transverse limiting groove, so that the fixture 5 is more accurate in position when being mounted on the fixture positioning block 4.
The oil cylinder drives the two clamp fixing blocks 4 to synchronously open and close through the linkage assembly 3, and then drives the two clamps 5 to synchronously open and close. The workpiece 100 is released when opened and the workpiece 100 is clamped when closed. Because two anchor clamps 5 are the movable mould, press from both sides tight blank in step, but the center of self-adaptation work piece, solve by the processing off-centre that the blank inflation influence produced, and the inhomogeneous problem of wall thickness that causes.
Also comprises two linear rails 7;
a horizontal linear rail sliding groove 22 is formed in the top end of the box body 2;
the two linear rails 7 are connected in the horizontal linear rail sliding grooves 22 in a sliding manner and are symmetrically arranged; the linear rail 7 slides in the horizontal linear rail sliding groove 22, so as to drive the fixture fixing block 4 to slide, and finally drive the fixture 5 to slide, thereby realizing opening and closing movement.
The fixture fixing blocks 4 are fixedly connected to the linear rails 7 in a one-to-one correspondence manner.
The linkage assembly 3 includes:
a connecting block 31 including a cylindrical body 311; the cylinder 311 is provided with a vertical accommodating groove 3111, and the top end, the left side and the right side of the vertical accommodating groove 3111 are respectively open; a stud 3112 is convexly arranged at the center of the bottom end of the cylinder 311;
two connecting levers 32 are hinged in the vertical accommodating groove 3111, are arranged in a crossed symmetrical manner, and are hinged to the linear rails 7 in a one-to-one correspondence manner; such as by means of a pin passing through said connecting lever 32 and said cylindrical body 311; the articulation is achieved by a pin passing through the connecting lever 32 and the wire track 7.
Wherein, the center of the piston rod of the oil cylinder 1 is provided with a piston rod internal thread hole 11;
the stud 3112 is locked into the piston rod internally threaded hole 11.
The piston rod of the oil cylinder 1 drives the connecting block 31 to move up and down, and further drives the two connecting levers 32 to move, so as to drag the two linear rails 7 to synchronously move in opposite directions or move away from each other, and close or open the two clamps 5.
Arc-shaped grooves 23 which are symmetrically arranged are further formed in the front side and the rear side of the through groove 21 of the box body 2;
the cylinder 311 is arranged in the two arc grooves 23, and the up-and-down movement of the cylinder 311 is guided by the arc grooves 23, so that the movement precision and the stability are improved.
Further comprising: a number of first bolts (not shown) and a number of second bolts (not shown);
the fixture fixing block 4 comprises a vertical part 42 and a horizontal part 43 which are fixedly connected together;
the horizontal part 43 is provided with a plurality of vertical first through holes 431;
the wire rail 7 is provided with a plurality of first screw holes 71, and the number of the first screw holes 71, the number of first bolts (not shown) and the number of the first through holes 431 are equal;
the first bolts (not shown) are correspondingly inserted into the first screw holes 71 after passing through the first through holes 431;
the vertical part 42 is provided with a plurality of vertical second through holes 421;
the clamp 5 is provided with a plurality of second screw holes 54, and the number of the second screw holes 54, second bolts (not shown) and second through holes 421 is equal;
the second bolts (not shown) are inserted through the second through holes 421 in a one-to-one correspondence and then locked into the second screw holes 54.
The wire track fixing device further comprises a middle limiting plate 24 fixedly connected to the box body 2 and located between the two wire tracks 7.
A plurality of third screw holes 25 are respectively arranged on the front and rear outer side surfaces of the box body 2.
The use mode is as follows:
placing the box body 2 on a machine table, and locking the third screw holes 25 by bolts to fix the box body 2;
placing the workpiece 100 between the positioning grooves 51 of the two fixtures 5, starting the oil cylinder 1 to enable the piston rod of the oil cylinder to retract downwards, and driving the two fixtures 5 to clamp the workpiece 100 in the positioning grooves 51 to realize automatic centering;
the starter station processes the workpiece 100;
after the completion, the oil cylinder 1 is controlled to enable a piston rod of the oil cylinder to extend upwards and take out the workpiece.
Because the track of the cutter is unchanged, the central position between the two clamps is unchanged, the blank is automatically centered on the clamps and is always kept at the central positions of the two clamps, so that the relative position relation between the cutter and the center of the blank is unchanged, and the wall thickness is ensured to be uniformly machined.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (7)
1. The utility model provides a can be from hydraulic fixture of centering clamping which characterized in that: the method comprises the following steps:
an oil cylinder;
the box body is vertically provided with a through groove;
the linkage assembly is connected to a piston rod of the oil cylinder and is arranged in the through groove;
the two clamp fixing blocks are symmetrically and slidably connected to the top end of the box body and are respectively connected to the linkage assembly to realize synchronous opening and closing movement;
the two clamps are provided with a positioning groove, are fixedly connected with the clamp fixing blocks in a one-to-one correspondence mode and are symmetrically arranged.
2. The hydraulic tool capable of self-centering clamping as claimed in claim 1, wherein: also comprises two linear rails;
the top end of the box body is provided with a horizontal linear rail sliding chute;
the two linear rails are connected in the horizontal linear rail sliding grooves in a sliding manner and are symmetrically arranged;
the fixture fixing blocks are fixedly connected to the linear rails in a one-to-one correspondence mode.
3. The hydraulic tool capable of self-centering clamping as claimed in claim 2, wherein: the linkage assembly includes:
the connecting block comprises a cylinder; the cylinder is provided with a vertical accommodating groove, and the top end, the left side and the right side of the vertical accommodating groove are respectively provided with an opening; a stud is convexly arranged at the center of the bottom end of the cylinder;
the two connecting levers are hinged in the vertical accommodating groove, are arranged in a crossed and symmetrical mode, and are hinged to the linear rails in a one-to-one correspondence mode;
the center of a piston rod of the oil cylinder is provided with a piston rod internal thread hole;
the stud is locked into the internal thread hole of the piston rod.
4. The hydraulic tool capable of self-centering clamping as claimed in claim 3, wherein: arc-shaped grooves which are symmetrically arranged are further formed in the front side and the rear side of the through groove of the box body respectively;
the cylinder is arranged in the two arc-shaped grooves.
5. The hydraulic tool capable of self-centering clamping as claimed in claim 2, wherein: further comprising: a plurality of first bolts and a plurality of second bolts;
the clamp fixing block comprises a vertical part and a horizontal part which are fixedly connected together;
the horizontal part is provided with a plurality of vertical first through holes;
the wire rail is provided with a plurality of first screw holes, and the first screw holes, the first bolts and the first through holes are equal in number;
the first bolts penetrate through the first through holes in a one-to-one correspondence mode and then are locked into the first screw holes;
the vertical part is provided with a plurality of vertical second through holes;
the clamp is provided with a plurality of second screw holes, and the number of the second screw holes, the number of the second bolts and the number of the second through holes are equal;
and the second bolts penetrate through the second through holes in a one-to-one correspondence manner and then are locked into the second screw holes.
6. The hydraulic tool capable of self-centering clamping as claimed in claim 2, wherein: the wire track fixing device is characterized by further comprising a middle limiting plate which is fixedly connected to the box body and is positioned between the two wire tracks.
7. The hydraulic tool capable of self-centering clamping of claim 1, wherein: and a plurality of third screw holes are respectively formed in the front outer side surface and the rear outer side surface of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123091560.7U CN216759056U (en) | 2021-12-09 | 2021-12-09 | Hydraulic tool capable of self-centering clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123091560.7U CN216759056U (en) | 2021-12-09 | 2021-12-09 | Hydraulic tool capable of self-centering clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216759056U true CN216759056U (en) | 2022-06-17 |
Family
ID=81964374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123091560.7U Active CN216759056U (en) | 2021-12-09 | 2021-12-09 | Hydraulic tool capable of self-centering clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216759056U (en) |
-
2021
- 2021-12-09 CN CN202123091560.7U patent/CN216759056U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203738457U (en) | Clamp for machining end face of cylinder cover | |
| CN106584169B (en) | Combined exhaust air gas manifold inlet end face of flange processing positioning method and positioning fixture | |
| CN104476331A (en) | Multi-station machine tool for machining air intake and exhaust rocker arms of automobile and air intake and exhaust rocker arm machining method thereof | |
| CN109647952B (en) | Hole-pulling method for oil separator | |
| CN216759056U (en) | Hydraulic tool capable of self-centering clamping | |
| CN113770774A (en) | Numerical control is holder for CNC processing | |
| CN107335862B (en) | Double-station crankshaft spindle oil hole hinging equipment | |
| CN111941108A (en) | Universal tool for numerical control machining of boring machine | |
| CN212311481U (en) | Pneumatic clamp for machining centre hole of convex fork | |
| CN114888172A (en) | Stamping die mounting structure capable of rapidly changing die | |
| CN212379720U (en) | Universal camera module testing device | |
| CN114346929A (en) | Clamp capable of avoiding workpiece deformation | |
| CN105538005A (en) | Clamp for machining forged steel gate valve gate plate guide groove | |
| CN219337743U (en) | Adjustable clamping jaw mechanism | |
| CN205949604U (en) | Automotive drive axle housing body side cut mould | |
| CN218927052U (en) | Clamping mechanism is opened in pipe fitting centering | |
| CN220161802U (en) | Four-axis clamp for processing thin cylinder body | |
| CN218363337U (en) | Inner hole compressing clamp | |
| CN219766844U (en) | Automatic deep hole boring machine | |
| CN217800412U (en) | Hydraulic single-action clamping device for valve group lathe | |
| CN211805007U (en) | End face machining and positioning fixture for rotating shaft seat of generator | |
| CN220680043U (en) | Pump valve piston adds clamping apparatus | |
| CN219819894U (en) | Case and bag anchor clamps | |
| CN220330655U (en) | Hydraulic clamp for machining automobile engine support | |
| CN113909959B (en) | Hydraulic clamping device for rough machining of engine cylinder block blank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |