CN213917971U - Inner hole self-centering tensioning mechanism - Google Patents
Inner hole self-centering tensioning mechanism Download PDFInfo
- Publication number
- CN213917971U CN213917971U CN202023060465.6U CN202023060465U CN213917971U CN 213917971 U CN213917971 U CN 213917971U CN 202023060465 U CN202023060465 U CN 202023060465U CN 213917971 U CN213917971 U CN 213917971U
- Authority
- CN
- China
- Prior art keywords
- tensioning
- rises
- tight
- base
- centering
- 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 relates to a hole is from feeling relieved tight mechanism that rises, the on-line screen storage device comprises a base, and install tight subassembly and the locating component that rises on the base, the tight subassembly that rises includes the tight connecting rod that rises, and the interior axle sleeve of cover outside the tight connecting rod that rises, the tight round pin head that rises is installed to the front end of the tight connecting rod that rises, the rear end is connected with the tight cylinder that rises, the fixing base of cover outside the tight round pin head that rises is installed to the front end of interior axle sleeve, install the tight fastener that rises that is annular distribution on the outer wall of fixing base, the tight fastener that rises that sets up on the tight round pin head and rises with the tight piece sliding fit that rises, the tight fastener that rises can drive the tight fastener that rises outward or inwards retract through the axial displacement of the tight round pin head that rises; the positioning assembly comprises a positioning cylinder arranged in the base, and the positioning cylinder can drive the tensioning assembly to move in the axial direction of the tensioning assembly. The utility model discloses positioning accuracy is high, effectual, need not manual operation, and it is more convenient to use.
Description
Technical Field
The utility model belongs to the technical field of the mechanical positioning processing, concretely relates to hole is from core tight mechanism that rises.
Background
In the machining process, especially during steps such as assembling, welding, often need fix a position the part, and current location generally adopts round pin axle or clamping type location, and not only positioning accuracy is low, and the positioning effect is poor, needs manual operation moreover, and is inefficient, can't satisfy the automated production requirement yet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hole is from core tight mechanism that rises to solve the poor problem of positioning accuracy.
The utility model discloses a hole is from core tight mechanism that rises realizes like this:
an inner hole self-centering tensioning mechanism comprises a base, a tensioning assembly and a positioning assembly, wherein the tensioning assembly and the positioning assembly are arranged on the base,
the tensioning assembly comprises a tensioning connecting rod and an inner shaft sleeve sleeved outside the tensioning connecting rod, a tensioning pin head is mounted at the front end of the tensioning connecting rod, a tensioning cylinder is connected at the rear end of the tensioning connecting rod, a fixed seat sleeved outside the tensioning pin head is mounted at the front end of the inner shaft sleeve, tensioning clamping pieces distributed in an annular mode are mounted on the outer wall of the fixed seat, tensioning clamping pieces in sliding fit with the tensioning clamping pieces are arranged on the tensioning pin head, and the tensioning clamping pieces can drive the tensioning clamping pieces to expand outwards or retract inwards through axial movement of the tensioning pin head;
the positioning assembly comprises a positioning cylinder arranged in the base, and the positioning cylinder can drive the tensioning assembly to move in the axial direction of the tensioning assembly.
Furthermore, the tensioning connecting rod can axially move in the inner shaft sleeve, and the tensioning connecting rod can drive the tensioning pin head to axially move in the fixed seat.
Furthermore, a sliding groove with the rear end inclined outwards is arranged on the tensioning piece, and the tensioning clamping piece is in sliding fit in the sliding groove.
Furthermore, the top of location cylinder is provided with the last sleeve that runs through base fore-and-aft direction, fixed mounting has outer axle sleeve in the last sleeve, interior axle sleeve is installed in the outer axle sleeve and can carry out axial displacement in the outer axle sleeve.
Furthermore, the positioning assembly further comprises a connecting plate arranged on the rear side of the base, a piston rod of the positioning cylinder extends out of the rear side of the base and is connected with the connecting plate, and the upper portion of the connecting plate is fixedly connected with the tensioning cylinder and the inner shaft sleeve.
Furthermore, a gourd-shaped through hole with a large upper inner diameter and a small lower inner diameter is formed in the connecting plate, and a piston rod of the positioning cylinder is installed in the gourd-shaped through hole.
Furthermore, the positioning assembly further comprises a guide shaft, the rear end of the guide shaft is connected with the connecting plate, the guide shaft is movably mounted in a lower shaft sleeve, the lower shaft sleeve is fixedly mounted in a lower sleeve, and the lower sleeve is mounted on the base and located below the positioning cylinder.
Furthermore, the side of the connecting plate facing the base is provided with a limit switch.
Further, the base comprises a bottom plate and two vertical plates which are arranged on the bottom plate in parallel.
Further, an outer cover is arranged on the base.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
the utility model discloses can drive the removal that rises and tightly the subassembly through the location cylinder, can realize the cooperation of rising and tightly subassembly and work piece to drive the rising and opening and returning of rising and tightly the tight piece that rises of fastener control through rising and tightly the cylinder and contract, realize fixed to the work piece, positioning accuracy is high, effectual, need not manual operation, and it is more convenient to use.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a structural diagram of an inner bore self-centering tensioning mechanism according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the inner bore self-centering tensioning mechanism (not covered) according to the preferred embodiment of the present invention;
FIG. 3 is a top view of the inner bore self-centering tensioning mechanism of the preferred embodiment of the present invention;
FIG. 4 is a structural view of portion A-A of FIG. 3;
FIG. 5 is a structural diagram of the tensioning member and the tensioning clamping member of the inner hole self-centering tensioning mechanism according to the preferred embodiment of the present invention;
in the figure: the device comprises a base 1, an upper sleeve 11, a lower sleeve 12, a bottom plate 13, a vertical plate 14, a tensioning connecting rod 21, an inner shaft sleeve 22, a tensioning pin head 23, a tensioning cylinder 24, a fixing seat 25, a tensioning piece 26, a tensioning clamping piece 27, a sliding groove 28, a positioning cylinder 31, a connecting plate 32, a calabash-shaped through hole 33, a guide shaft 34, an outer shaft sleeve 4, a lower shaft sleeve 5, a shield 6, a limit switch 7 and an outer cover 8.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-5, an inner hole self-centering tensioning mechanism comprises a base 1, a tensioning assembly and a positioning assembly, wherein the tensioning assembly and the positioning assembly are mounted on the base 1, the tensioning assembly comprises a tensioning connecting rod 21 and an inner shaft sleeve 22 sleeved outside the tensioning connecting rod 21, a tensioning pin head 23 is mounted at the front end of the tensioning connecting rod 21, a tensioning cylinder 24 is connected at the rear end of the tensioning connecting rod, a fixed seat 25 sleeved outside the tensioning pin head 23 is mounted at the front end of the inner shaft sleeve 22, tensioning members 26 distributed annularly are mounted on the outer wall of the fixed seat 25, tensioning clamping members 27 in sliding fit with the tensioning members 26 are arranged on the tensioning pin head 23, and the tensioning clamping members 27 can drive the tensioning members 26 to expand outwards or retract inwards by axial movement of the tensioning pin head 23; the positioning assembly comprises a positioning cylinder 31 installed in the base 1, and the positioning cylinder 31 can drive the tensioning assembly to move in the axial direction of the tensioning assembly.
The tensioning cylinder 24 is used for driving the tensioning member 26 to expand and retract, and the positioning cylinder 31 is arranged to extend the fixing seat 25 into the workpiece, so as to facilitate tensioning and positioning.
The tensioning pin head 23 can only move in the axial direction to realize the expansion or retraction of the tensioning member 26, and in order to drive the axial movement of the tensioning pin head 23, the tensioning connecting rod 21 can move in the axial direction of the inner shaft sleeve 22, and the tensioning connecting rod 21 can drive the tensioning pin head 23 to move in the axial direction of the fixing seat 25.
The piston rod of the tensioning cylinder 24 is arranged in advance and connected with the tensioning connecting rod 21, the tensioning connecting rod 21 is connected with the tensioning pin head 23, and the tensioning cylinder 24 can drive the axial movement of the tensioning pin head 23 through the tensioning connecting rod 21 so as to realize the expansion and retraction of the tensioning member 26.
In order to enable the tensioning pin head 23 to axially move, the tensioning clamping piece 27 is used for driving the tensioning piece 26 to expand or retract, a sliding groove 28 with the rear end inclined outwards is arranged on the tensioning piece 26, and the tensioning clamping piece 27 is in sliding fit with the sliding groove 28.
Specifically, the fixing seat 25 is provided with a mounting hole, and the tensioning member 26 is mounted in the mounting hole and can move outwards and inwards in the mounting hole.
When the tension clamping piece 27 moves forward along with the tension pin head 23, the tension clamping piece 26 is expanded outwards to be close to the inner wall of the workpiece to position the workpiece through the movement of the tension clamping piece 27 in the sliding groove 28. When the tensioning clamping piece 27 moves backwards along with the tensioning pin head 23, the tensioning piece 26 contracts inwards to be separated from the inner wall of the workpiece.
In order to drive the inner shaft sleeve 22 and the tensioning cylinder 24 to axially move through the positioning cylinder 31, the positioning assembly further comprises a connecting plate 32 arranged on the rear side of the base 1, a piston rod of the positioning cylinder 31 extends out of the rear side of the base 1 and is connected with the connecting plate 32, and the upper portion of the connecting plate 32 is fixedly connected with the tensioning cylinder 24 and the inner shaft sleeve 22.
Specifically, a piston rod of the positioning cylinder 31 faces the rear side, penetrates through the rear wall of the base 1 and is connected with the connecting plate 32, a piston rod of the tensioning cylinder 24 penetrates through the connecting plate 32 and is connected with the tensioning connecting rod 21, and the piston rod of the positioning cylinder 31 can drive the connecting plate 32 to move back and forth in the telescopic process, so that the tensioning cylinder 24, the inner shaft sleeve 22 and the structure connected with the tensioning cylinder 24 and the inner shaft sleeve 22 are driven to move axially.
In order to facilitate the matching of the piston rod of the positioning cylinder 31 and the connecting plate 32, a gourd-shaped through hole 33 with a large upper inner diameter and a small lower inner diameter is formed in the connecting plate 32, and the piston rod of the positioning cylinder 31 is installed in the gourd-shaped through hole 33.
The piston rod of the positioning cylinder 31 penetrates through the large aperture part at the upper part of the gourd-shaped through hole 33 and then is pressed downwards into the small aperture part, thereby connecting the piston rod of the positioning cylinder 31 and the connecting plate 32 together.
In order to guide the movement of the connecting plate 32, the positioning assembly further comprises a guide shaft 34 with a rear end connected with the connecting plate 32, the guide shaft 34 is movably installed in a lower shaft sleeve 5, the lower shaft sleeve 5 is fixedly installed in a lower sleeve 12, and the lower sleeve 12 is installed on the base 1 and is positioned below the positioning cylinder 31.
Specifically, the axial direction of the guide shaft 34 is the same as the extending and contracting direction of the piston rod of the positioning cylinder 31.
Preferably, a guard 6 covering the front end of the guide shaft 34 is provided on the front side surface of the base 1 so as to protect the guide shaft 34.
In order to limit the expansion and contraction of the positioning cylinder 31, the side of the connecting plate 32 facing the base 1 is provided with a limit switch 7.
In order to facilitate installation of the tensioning assembly and the positioning assembly, the base 1 includes a bottom plate 13 and two vertical plates 14 arranged in parallel on the bottom plate 13.
Specifically, the positioning cylinder 31 is installed between two vertical plates 14, the upper sleeve 11 and the lower sleeve 12 are also installed between the two vertical plates 14, and both ends of the upper sleeve penetrate through the two vertical plates 14.
In order to protect the tensioning assembly and the positioning cylinder 31, the base 1 is provided with an outer cover 8.
Before the workpiece is positioned, the piston rod of the positioning cylinder 31 is in an extending state, and the piston rod of the tensioning cylinder 24 is in a retracting state. When a workpiece needs to be positioned, the piston rod of the positioning cylinder 31 retracts to drive the connecting plate 32, the inner shaft sleeve 22, the tensioning cylinder 24, the tensioning connecting rod 21, the tensioning pin head 23 and the fixing seat 25 to synchronously move forwards, so that the fixing seat 25 extends into the shaft hole of the workpiece, the piston rod of the tensioning cylinder 24 extends out, the tensioning pin head 23 is pushed forwards through the tensioning connecting rod 21, the tensioning clamping piece 27 is utilized to enable the tensioning piece 26 to expand outwards and cling to the inner wall of the shaft hole of the workpiece, and accurate positioning of the workpiece is achieved.
After the workpiece is machined, the piston rod of the tensioning cylinder 24 is controlled to retract to separate the tensioning member 26 from the shaft hole of the workpiece, and then the piston rod of the positioning cylinder 31 is controlled to extend to drive the fixing seat 25, the inner shaft sleeve 22, the tensioning pin head 23, the tensioning connecting rod 21 and the tensioning cylinder to synchronously move backwards, so that the workpiece can be separated from the workpiece.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An inner hole self-centering tensioning mechanism is characterized by comprising a base (1), a tensioning assembly and a positioning assembly which are arranged on the base (1), wherein,
the tensioning assembly comprises a tensioning connecting rod (21) and an inner shaft sleeve (22) sleeved outside the tensioning connecting rod (21), a tensioning pin head (23) is installed at the front end of the tensioning connecting rod (21), a tensioning cylinder (24) is connected to the rear end of the tensioning connecting rod, a fixing seat (25) sleeved outside the tensioning pin head (23) is installed at the front end of the inner shaft sleeve (22), tensioning pieces (26) distributed annularly are installed on the outer wall of the fixing seat (25), tensioning clamping pieces (27) in sliding fit with the tensioning pieces (26) are arranged on the tensioning pin head (23), and the tensioning clamping pieces (27) can drive the tensioning pieces (26) to expand outwards or retract inwards through axial movement of the tensioning pin head (23);
the positioning assembly comprises a positioning cylinder (31) installed in the base (1), and the positioning cylinder (31) can drive the tensioning assembly to move in the axial direction of the tensioning assembly.
2. The internal bore self-centering tensioning mechanism according to claim 1, wherein the tensioning connecting rod (21) can axially move in the internal bushing (22), and the tensioning connecting rod (21) can drive the tensioning pin head (23) to axially move in the fixed seat (25).
3. The inner hole self-centering tensioning mechanism according to claim 1, characterized in that the tensioning member (26) is provided with a sliding groove (28) with an outward inclined rear end, and the tensioning clamp (27) is slidably fitted in the sliding groove (28).
4. The inner bore self-centering tensioning mechanism according to claim 1, wherein an upper sleeve (11) penetrating through the base (1) in the front-rear direction is arranged above the positioning cylinder (31), an outer shaft sleeve (4) is fixedly arranged in the upper sleeve (11), and the inner shaft sleeve (22) is arranged in the outer shaft sleeve (4) and can axially move in the outer shaft sleeve (4).
5. The inner hole self-centering tensioning mechanism according to claim 1, wherein the positioning assembly further comprises a connecting plate (32) arranged at the rear side of the base (1), a piston rod of the positioning cylinder (31) extends out of the rear side of the base (1) and is connected with the connecting plate (32), and the upper part of the connecting plate (32) is fixedly connected with the tensioning cylinder (24) and the inner bushing (22).
6. The inner hole self-centering tensioning mechanism according to claim 5, characterized in that a gourd-shaped through hole (33) with a large upper inner diameter and a small lower inner diameter is formed in the connecting plate (32), and a piston rod of the positioning cylinder (31) is installed in the gourd-shaped through hole (33).
7. The inner hole self-centering tensioning mechanism according to claim 5, characterized in that the positioning assembly further comprises a guide shaft (34) connected with the connecting plate (32) at the rear end, the guide shaft (34) is movably mounted in a lower shaft sleeve (5), the lower shaft sleeve (5) is fixedly mounted in a lower sleeve (12), and the lower sleeve (12) is mounted on the base (1) and located below the positioning cylinder (31).
8. The inner hole self-centering tensioning mechanism according to claim 5, characterized in that the side of the connecting plate (32) facing the base (1) is provided with a limit switch (7).
9. The inner bore self-centering tensioning mechanism according to claim 1, characterized in that the base (1) comprises a bottom plate (13) and two parallel standing plates (14) mounted on the bottom plate (13).
10. The internal bore self-centering tensioning mechanism according to claim 9, characterized in that an outer cover (8) is arranged on the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023060465.6U CN213917971U (en) | 2020-12-17 | 2020-12-17 | Inner hole self-centering tensioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023060465.6U CN213917971U (en) | 2020-12-17 | 2020-12-17 | Inner hole self-centering tensioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213917971U true CN213917971U (en) | 2021-08-10 |
Family
ID=77154795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023060465.6U Active CN213917971U (en) | 2020-12-17 | 2020-12-17 | Inner hole self-centering tensioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213917971U (en) |
-
2020
- 2020-12-17 CN CN202023060465.6U patent/CN213917971U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213917971U (en) | Inner hole self-centering tensioning mechanism | |
| CN210435661U (en) | Double-pressure-head switching multifunctional servo press | |
| CN211589943U (en) | Press mounting mechanism and press mounting clamp comprising same | |
| CN216096816U (en) | Phase control device for gear shaft machining | |
| CN216144462U (en) | Elastic clamp for supporting inner holes at two ends of vertical balancing machine | |
| CN210677665U (en) | Cab shock absorber accessory assembling and pulling device | |
| CN114310268A (en) | Split pin press fitting tool | |
| CN209936320U (en) | Assembly fixture for upper bracket and bottom cover of outer barrel of automobile shock absorber | |
| CN113894568B (en) | Phase control device and method for gear shaft machining | |
| CN215788177U (en) | Pole subassembly for machine tool machining | |
| CN220560855U (en) | Axle sleeve pressing tool | |
| CN220074479U (en) | Multi-position pluggable positioning device applicable to sliding table structure | |
| CN211542534U (en) | Oil press of three-dimensional suppression | |
| CN211135117U (en) | Long-distance heavy tail jack | |
| CN210182055U (en) | Pipe joint assembly | |
| CN219665652U (en) | Elastic workpiece assembly device | |
| CN219027378U (en) | Replacing tool for piston sealing ring of hydraulic cylinder | |
| CN215392056U (en) | Top convenient to installation | |
| CN209303630U (en) | The upsetting mouth mechanism of fuel tank connector | |
| CN217890823U (en) | Assembly fixture of blind plug connector flow guide sleeve | |
| CN210281167U (en) | Flexible flywheel welding clamp | |
| CN216554727U (en) | Nested oil cylinder with built-in displacement sensor | |
| CN219684390U (en) | Spin lock welding positioning device | |
| CN219945864U (en) | Clamping tool for wiper angle test | |
| CN214323216U (en) | Crankshaft gear press-fitting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |