CN217452900U - A hold tight mechanism for axle type part - Google Patents
A hold tight mechanism for axle type part Download PDFInfo
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- CN217452900U CN217452900U CN202221414330.1U CN202221414330U CN217452900U CN 217452900 U CN217452900 U CN 217452900U CN 202221414330 U CN202221414330 U CN 202221414330U CN 217452900 U CN217452900 U CN 217452900U
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Abstract
The utility model discloses a holding mechanism for shaft parts, which comprises a fixed base body; a mounting assembly having a first mount and a second mount; the clamping assembly is provided with a pair of clamping pieces, a clamping surface of each clamping piece is provided with a clamping groove matched with the shaft piece, and the two clamping pieces tightly hold the shaft parts when closed; and the power mechanism is provided with a gear rack transmission assembly driven by the power source, the gear rack transmission assembly is provided with a pair of racks and a gear, and each rack is connected with one of the clamping pieces. The utility model discloses a gear and a pair of rack realize opening and the closure of two holders, the gear corresponds from top to bottom with the central line of second installed part, and the central line of second installed part and fixed base member coincides from top to bottom, installs the centre gripping center that can realize two holders on the assembly line through fixed base member and assembles central coincidence on the assembly line, and then has realized the centering of axle piece, need not the position at repeated regulation centre gripping center, has improved centering efficiency.
Description
Technical Field
The utility model belongs to the technical field of axle type part centering and positioning and specifically relates to an enclasping mechanism for axle type part is related to.
Background
In the existing assembly line, shaft parts (such as shafts, sleeves and the like) are one of common parts, and the shaft parts are often required to be held tightly and positioned in the middle in the production process and then are processed or assembled. Present axle piece positioning mechanism is to utilizing four stoppers to carry out location placed in the middle, the centering of axle type part is realized to the position through the fine setting stopper, often need the multiunit stopper to the great axle type part of length (like hydraulic support's sleeve and piston rod), just also mean that needs finely tune every group stopper, adjustment work load is big, still need appurtenance (like slide caliper rule, calibration block) to adjust when the adjustment, this centering positioning mechanism is consuming time longer, and seriously influence assembly or production efficiency, with high costs and be unfavorable for the mass production of axle piece.
Disclosure of Invention
An object of the utility model is to provide a mechanism of holding tightly for axle type part can realize holding tightly fixedly of axle type part.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model discloses a clasping mechanism for shaft parts, which comprises a fixed base body; also comprises
The mounting assembly is provided with a first mounting piece arranged on the fixed base body and a second mounting piece erected above the first mounting piece, the first mounting piece and the second mounting piece are connected through a connecting unit, and the centers of the first mounting piece, the second mounting piece and the fixed base body are coincided;
the clamping assembly is provided with a pair of clamping pieces moving on the second mounting piece, a clamping surface of each clamping piece is provided with a clamping groove matched with the shaft piece, and the two clamping pieces tightly hold the shaft parts when closed; and
the power mechanism is arranged between the first mounting piece and the second mounting piece and is provided with a gear rack transmission assembly driven by a power source, the gear rack transmission assembly is provided with a pair of racks with opposite moving directions and a gear meshed with the two racks, and each rack is connected with one of the clamping pieces.
In the technical scheme, the gear and the center of the second mounting plate are arranged, so that the shaft is arranged at the center of the second mounting part when the two clamping parts are closed, the shaft is coaxial with another shaft on the assembly station, repeated adjustment is not needed, rapid centering of the shaft is realized, and the assembly efficiency is improved.
Preferably, the connecting unit includes a plurality of vertically arranged first connecting members, each of which has an upper portion connected to the second mounting member and a lower portion fixed to the first mounting member. First installed part and second installed part are connected through first connecting piece, effectively ensure the installation space between first installed part and the second installed part, are convenient for install power unit's power supply, gear and rack.
Preferably, the second mounting part is provided with a slide rail extending along the direction of the second mounting part; the clamping assembly is further provided with a pair of sliding assemblies corresponding to the clamping pieces, and the sliding assemblies horizontally move along the sliding rails, so that the motion track and the stable operation of each clamping piece are effectively guaranteed.
Furthermore, the sliding assembly comprises a sliding seat and at least one sliding block arranged at the bottom of the sliding seat, the at least one sliding block is clamped on the sliding rail, and the clamping piece is fixed on the sliding seat. Of course, the slide rail may have a guide groove, and the slider is clamped in the guide groove and moves along the guide groove.
Preferably, the power source is in transmission connection with the gear or one of the racks; and each rack is fixedly connected with the sliding assembly through a second connecting piece. During actual installation, the power source can be a motor connected with the gear (or a speed reducer driven by the motor, namely, the power output end of the speed reducer is connected with the gear), and the motor drives the gear to rotate to realize horizontal movement of the two racks, so that the opening and closing requirements of the clamping piece are met, and the holding of the part is realized; the power source can also be a linear power source such as an air cylinder or a hydraulic cylinder, and the reverse movement of the other rack can be realized by driving one rack to horizontally move.
More preferably, a plurality of pairs of rollers for increasing the clamping area are arranged at the clamping groove of each clamping member at intervals. Each pair of rollers is positioned on the two side faces of the clamping piece, so that the clamping area can be increased, the shaft piece can be centered and tightly held, and the rolling condition in the assembling process is avoided.
The utility model discloses the advantage lies in realizing opening and the closure of two holders through gear and a pair of rack with gear engagement, the gear corresponds from top to bottom with the central line of second installed part, and coincidence about the central line of second installed part and fixed base member, install the centre gripping center that can realize two holders on the assembly line through fixed base member and assemble central coincidence on the assembly line, and then realized the centering of axle piece, need regularly when the assembly to the centre gripping center calibrate can, need not the position of repeated regulation centre gripping center, the centering efficiency has been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in figures 1-2, the clasping mechanism for shaft parts of the present invention comprises
The fixing base is a fixing seat 1 (which can be a fixing plate or a fixing block) horizontally arranged;
the mounting assembly is provided with a first mounting piece (namely, a first mounting plate 2.1, of course, a mounting block) arranged on the fixed seat 1 and a second mounting piece (namely, a second mounting plate 2.2, of course, a block structure) erected above the first mounting plate 2.1, wherein the first mounting plate 2.1 and the second mounting plate 2.2 are connected through a connecting unit, and the centers of the first mounting plate 2.1, the second mounting plate 2.2 and the fixed seat 1 are coincided;
the clamping assembly is provided with a pair of clamping blocks 3.1 moving on the second mounting piece, the clamping surface of each clamping block 3.1 is provided with a clamping groove 3.2 matched with the shaft, and the two clamping blocks 3.1 tightly hold the shaft part when closed; and
the power mechanism is arranged between the first mounting plate 2.1 and the second mounting plate 2.2 and is provided with a gear rack transmission assembly driven by a power source, the gear rack transmission assembly is provided with a gear 4.1 (the projection of the central lines of the gear 4.1 and the second mounting plate 2.2 on the horizontal plane is superposed) and a pair of racks 4.2 meshed with the gear 4.1, the two racks 4.2 are arranged along the length direction of the second mounting plate 2.2, one rack 4.2 is arranged below the gear 4.1, the other rack 4.2 is arranged above the gear 4.1, and the two racks 4.2 are arranged in a left-right staggered mode, so that the moving directions of the two racks 4.2 are always opposite; each rack 4.2 is connected with one of the clamping blocks 3.1, so that the clamping blocks 3.1 are opened and closed.
During operation, the power supply realizes the automatic closing and opening of two grip blocks 3.1 through rack and pinion drive assembly, and then realizes the fixed of axle type part. To the longer axle type part of length, can set up two or threely side by side the utility model discloses an embrace centering mechanism tightly, realize holding tightly and the centering of axle type part, ensure the installation accuracy.
As shown in fig. 1, the connection unit includes a plurality of vertically arranged first connection members (i.e., first connection plates 4.6, which may be connection rods or connection blocks, of course), each upper portion of the first connection plates 4.6 is fixed to the second mounting plate 2.2 by bolts, the lower portions of the first connection plates 4.6 are fixed to the first mounting plate 2.1 by bolts, and the second mounting plate 2.2 is erected above the first mounting plate 2.1, so as to mount the rack and pinion assembly.
In a preferred embodiment of the present invention, the clamping assembly and the second mounting assembly are connected in the following manner: as shown in fig. 1-2, the clamping assembly further comprises a pair of sliding assemblies with the same structure, each sliding assembly is provided with a clamping block 3.1, each sliding assembly comprises a sliding seat 5.1 which is horizontally arranged and two sliding blocks 5.2 which are arranged on the lower surface of the sliding seat 5.1, and the clamping blocks 3.1 are fixed on the sliding seats 5.1; the upper surface of the second mounting plate 2.2 is provided with a slide rail 5.3 arranged along the length direction, the two slide blocks 5.2 are clamped on the slide rail 5.3, and the clamping block 3.1 horizontally reciprocates along the slide rail 5.3 on the second mounting plate 2.2 through the slide assembly, so that the linear motion track of the clamping block 3.1 is effectively ensured.
The utility model discloses an among other embodiments, for further ensureing grip block 3.1's movement track, be provided with installation piece 5.4 respectively at the both ends of second mounting panel 2.2, be provided with one through the bolt between two installation pieces 5.4 with slide rail 5.3 parallel guide ruler 5.5 from top to bottom, sliding seat 5.1's upper surface is provided with the briquetting, grip block 3.1 fixes on the briquetting, the junction of briquetting and sliding seat 5.1 have with guide ruler 5.5 complex lead to the groove, further ensure grip block 3.1's motion precision.
As shown in fig. 1, the power source is a cylinder 4.3 in transmission connection with the rack 4.2, the installation direction of the cylinder is consistent with that of the second installation plate 2.2, and the end part of a piston rod of the cylinder 4.3 is fixedly connected with a connection block 4.4; each sliding seat 5.1 is provided with a second connecting piece (namely a second connecting plate 4.5, which can be a block structure of course) extending downwards, each second connecting plate 4.5 is fixedly connected with one of the racks 4.2, and the second connecting plate 4.5 is in clearance fit with the side edge of the first mounting plate 2.1;
as shown in fig. 1, the connecting block 4.4 is fixed together with one of the second connecting plates 4.5 through a bolt, so that the connection between the rack 4.2 and the cylinder 4.3 is realized, the rack 4.2 connected with the cylinder is the driving rack 4.2, the driving rack 4.2 drives the gear 4.1 to rotate when moving, the gear 4.1 drives the other rack 4.2 to move in the rotating process, and then the opening and closing of the two clamping blocks 3.1 are realized, so as to meet the holding requirements of the shaft.
The air cylinder can be replaced by a hydraulic cylinder, and can also be a synchronous belt transmission mechanism and the like. In actual installation, the power source can also be a motor in transmission connection with the gear 4.1, and can also be a speed reducer driven by the motor, and the power source can be flexibly selected according to the installation space in actual installation, and the power source of the embodiment is not limited to the cylinder.
The utility model discloses an among other embodiments, every grip block 3.1's centre gripping groove 3.2 department all is provided with four pairs of gyro wheels 3.3, and gyro wheel 3.3 is close to the notch in centre gripping groove 3.2, can further increase the centre gripping area, ensures to hold the axle tightly to in the centering assembly between the realization axle.
In actual use, if the shaft to be centered and assembled is longer, a plurality of holding mechanisms can be arranged at intervals along the length direction of the shaft, and the holding mechanisms can act simultaneously to hold the long shaft; if two shaft parts need to be assembled in a centering mode, the clamping centers of the clamping mechanisms of the two shaft parts are arranged on the same straight line during installation, and therefore the two shaft parts can be centered, and assembly is facilitated.
It is noted that, in the description of the present invention, 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.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made without inventive faculty to the embodiments described in the foregoing description, or some of the technical features thereof may be substituted. Therefore, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a hold mechanism tightly for axle type part which characterized in that: comprises that
Fixing the substrate;
the mounting assembly is provided with a first mounting piece arranged on the fixed base body and a second mounting piece erected above the first mounting piece, the first mounting piece and the second mounting piece are connected through a connecting unit, and the centers of the first mounting piece, the second mounting piece and the fixed base body are coincided;
the clamping assembly is provided with a pair of clamping pieces moving on the second mounting piece, a clamping surface of each clamping piece is provided with a clamping groove matched with the shaft piece, and the two clamping pieces tightly hold the shaft parts when closed; and
the power mechanism is arranged between the first mounting piece and the second mounting piece and is provided with a gear rack transmission assembly driven by a power source, the gear rack transmission assembly is provided with a pair of racks with opposite moving directions and a gear meshed with the two racks, and each rack is connected with one of the clamping pieces.
2. The clasping mechanism for shaft parts as claimed in claim 1, characterized in that: the connecting unit comprises a plurality of vertically arranged first connecting pieces, the upper part of each first connecting piece is connected with the second mounting piece, and the lower part of each first connecting piece is fixed on the first mounting piece.
3. The clasping mechanism for shaft parts as claimed in claim 1, characterized in that: the second mounting part is provided with a sliding rail extending along the direction of the second mounting part; the clamping component is also provided with a pair of sliding components which correspond to the clamping pieces one by one, and the sliding components horizontally move along the sliding rails.
4. The clasping mechanism for shaft parts as claimed in claim 3, characterized in that: the sliding assembly comprises a sliding seat and at least one sliding block arranged at the bottom of the sliding seat, the at least one sliding block is clamped on the sliding rail, and the clamping piece is fixed on the sliding seat.
5. The clasping mechanism for shaft parts as claimed in claim 3, characterized in that: the power source is in transmission connection with the gear or one of the racks; and each rack is fixedly connected with the sliding assembly through a second connecting piece.
6. A clasping mechanism for shaft parts according to claim 5, characterized in that: the power source is a cylinder or a hydraulic cylinder connected with one of the racks.
7. The clasping mechanism for shaft parts as claimed in claim 5, characterized in that: the power source is a motor in transmission connection with the gear or a speed reducer driven by the motor.
8. The clasping mechanism for shaft parts as claimed in claim 5, characterized in that: and a plurality of pairs of rollers for increasing the clamping area are arranged at the clamping groove of each clamping piece at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221414330.1U CN217452900U (en) | 2022-06-08 | 2022-06-08 | A hold tight mechanism for axle type part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221414330.1U CN217452900U (en) | 2022-06-08 | 2022-06-08 | A hold tight mechanism for axle type part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217452900U true CN217452900U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221414330.1U Active CN217452900U (en) | 2022-06-08 | 2022-06-08 | A hold tight mechanism for axle type part |
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| Country | Link |
|---|---|
| CN (1) | CN217452900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415779A (en) * | 2022-10-09 | 2022-12-02 | 机械工业第六设计研究院有限公司 | Press mounting method for shaft part and disc part |
-
2022
- 2022-06-08 CN CN202221414330.1U patent/CN217452900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415779A (en) * | 2022-10-09 | 2022-12-02 | 机械工业第六设计研究院有限公司 | Press mounting method for shaft part and disc part |
| CN115415779B (en) * | 2022-10-09 | 2023-09-26 | 机械工业第六设计研究院有限公司 | Press mounting method for shaft piece and disc piece |
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