CN216264724U - Zero positioning quick clamping system - Google Patents

Zero positioning quick clamping system Download PDF

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Publication number
CN216264724U
CN216264724U CN202122940189.0U CN202122940189U CN216264724U CN 216264724 U CN216264724 U CN 216264724U CN 202122940189 U CN202122940189 U CN 202122940189U CN 216264724 U CN216264724 U CN 216264724U
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China
Prior art keywords
slider
sliding block
clamping system
base
quick clamping
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CN202122940189.0U
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Chinese (zh)
Inventor
梁晓明
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Xiaozhi Technology Manufacturing Suzhou Co ltd
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Xiaozhi Technology Manufacturing Suzhou Co ltd
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Priority to CN202122940189.0U priority Critical patent/CN216264724U/en
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Abstract

The utility model discloses a novel zero positioning quick clamping system which is used for improving the clamping efficiency and the processing positioning precision in the part production process. The zero-point positioning quick clamping system can realize the simultaneous locking of the four pull rods only by rotating the two-way threaded rod on the locking device, the locking force is more stable and firmer, the positioning is more accurate by utilizing the principle that the conical surface of the expansion positioning pin is stressed and contracts centripetally, the locking and the positioning are synchronously carried out when the part blank is clamped, the efficiency is higher, and the convenience is higher.

Description

Zero positioning quick clamping system
Technical Field
The utility model relates to the technical field of industrial clamps, in particular to a zero positioning and rapid clamping system.
Background
In the process of producing and processing parts, a part blank is usually fixed on a worktable of a processing machine tool, and then the center coordinates of the part blank are searched for processing. If the part blank is fixed by using a common tool, the process is complicated, and in addition, because the position for fixing the part blank is different every time, the central coordinate of the part blank needs to be searched every time, so that the time and the labor are consumed, and the production cost is increased. The existing clamping system product generally has the problems that the clamping can be simplified but the part blank can not be well positioned, or the part blank can be positioned but the fixing is not firm, and the like. In view of the above circumstances, it is actually necessary to design a novel zero-point positioning quick clamping system, which can simultaneously solve the problem of fixing and positioning the blank of the part.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a zero positioning quick clamping system to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the zero-point positioning quick clamping system comprises a workpiece bottom plate, pull rods, a base, expansion positioning pins and a locking device, wherein the four pull rods are arranged on the bottom surface of the workpiece bottom plate, the four expansion positioning pins are arranged on the top of the base, the pull rods are connected with the base in a sliding and penetrating manner, and the locking device is arranged in the base;
the locking device comprises a front plate, a rear plate, a bidirectional threaded rod, a front sliding block, a rear sliding block, a left sliding block and a right sliding block, wherein the bidirectional threaded rod is in threaded insertion connection with the front sliding block and the rear sliding block respectively, and the left sliding block and the right sliding block are in sliding connection with the front sliding block and the rear sliding block respectively.
Preferably, the workpiece base plate is provided with four conical holes, the expansion positioning pins are connected with the inner cavities of the conical holes in a sliding and penetrating manner, and the conical holes are used for being matched with the expansion positioning pins in a positioning manner.
Preferably, the expansion positioning pin is provided with a convex conical surface, the top of the conical hole is provided with a concave conical surface, the convex conical surface is matched with the concave conical surface, and the convex conical surface of the expansion positioning pin can be centripetally contracted under the condition of downward pressure and keeps close fit with the concave conical surface of the conical hole on the bottom surface of the workpiece bottom plate, so that the direction and the position of the workpiece bottom plate when the workpiece bottom plate is installed on the base are limited.
Preferably, the front slider and the rear slider are symmetrically arranged relative to the bidirectional threaded rod, the front slider and the rear slider linearly move back to back or in opposite directions through rotation of the bidirectional threaded rod, two sides of the front slider and the rear slider are both connected with T-shaped strips, the left slider, the right slider, the front slider and the rear slider are connected in a sliding manner through the T-shaped strips, the left slider and the right slider move left to back or right in opposite directions through pushing of the front slider and the rear slider, and the front slider and the rear slider are connected with the bidirectional threaded rod and move back to back or back to back along with the bidirectional threaded rod; the left and right sliding blocks are connected with the front sliding block and the rear sliding block through T-shaped grooves, and the front sliding block and the rear sliding block push the left and right sliding blocks to move back to back or move left and right in opposite directions when moving back and forth.
Preferably, the end parts of the left and right sliding blocks are provided with convex inclined planes, the bottom of the pull rod is provided with a concave inclined plane, the convex inclined planes and the concave inclined planes are matched with each other, the convex inclined planes extrude the concave inclined planes of the pull rod clamping grooves when the left and right sliding blocks move to the tail end, the pull rod generates downward pulling force under the extrusion condition, and finally the workpiece bottom plate is fixed on the base.
Compared with the prior art, the zero-point positioning quick clamping system can lock the four pull rods simultaneously only by rotating one bidirectional threaded rod, the locking efficiency is higher, the locking is more convenient, the four pull rods are more stable and firm than the product of the existing pull rod, and in addition, the four pull rods are positioned by the four expansion positioning pins, so that the positioning is more accurate than the product positioned by the existing straight pin or card.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the locking device of the present invention.
FIG. 3 is a schematic view of the present invention showing the structure of the base plate facing upward;
FIG. 4 is a schematic view of the expansion joint pin of the present invention;
FIG. 5 is a schematic view of the left and right slider structures of the present invention;
fig. 6 is a schematic view of the tie bar of the present invention.
In the drawings:
1. a base plate; 2. a pull rod; 3. a base; 4. an expansion positioning pin; 5. a locking device; 51. a front plate; 52. a back plate; 53. a bidirectional threaded rod; 54. a front slider; 55. a rear slider; 56. a left slide block and a right slide block; a1, convex conical surface; a2, concave conical surface; b1, convex inclined plane; b2, concave slope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention includes a workpiece base plate 1, a pull rod 2, a base 3, an expansion positioning pin 4 and a locking device 5.
The base 3 is arranged on the working platform of the processing machine tool and is used as a known processing coordinate zero point. The workpiece bottom plate 1 is used for placing a part blank and plays a role in connecting the part blank with the base 3. The four pull rods 2 are respectively arranged in threaded holes on the bottom surface of the workpiece base plate 1. Four expansion positioning pins 4 are installed on the top surface of the base 3, and a locking device 5 is installed inside the base 3.
Referring to fig. 3-6, the workpiece base plate 1 is provided with four conical holes, the expansion positioning pin 4 is slidably inserted into the inner cavity of the conical hole, the expansion positioning pin 4 is provided with a convex conical surface a1, the top of the conical hole is provided with a concave conical surface a2, the convex conical surface a1 is matched with the concave conical surface a2, the end parts of the left and right sliders 56 are provided with convex inclined surfaces B1, the bottom of the pull rod 2 is provided with a concave inclined surface B2, and the convex inclined surfaces B1 are matched with the concave inclined surfaces B2.
Referring to fig. 2, the locking device 5 includes a front plate 51, a rear plate 52, a bidirectional threaded rod 53, a front slider 54, a rear slider 55, left and right sliders 56, the bidirectional threaded rod 53 is respectively threaded with the front slider 54 and the rear slider 55, the four left and right sliders 56 are respectively slidably connected with the front slider 54 and the rear slider 55, the front slider 54 and the rear slider 55 are symmetrically arranged with respect to the bidirectional threaded rod 53, the front slider 54 and the rear slider 55 linearly move back to back or in opposite directions by rotation of the bidirectional threaded rod 53, T-shaped bars are connected to both sides of the front slider 54 and the rear slider 55, the left and right sliders 56 are slidably connected with the front slider 54 and the rear slider 55 by the T-shaped bars, and the left and right sliders 56 move back to back or left and right in opposite directions by pushing of the front slider 54 and the rear slider 55.
The entire lock device is fixed inside the base 3 by the front plate 51 and the rear plate 52, and the movement of the front slider 54 and the rear slider 55 between the front plate 51 and the rear plate 52 is restricted. The front slider 54 and the rear slider 55 are connected in series by the bidirectional threaded rod 53. The four left and right sliders 56 are attached to the left and right sides of the front slider 54 and the rear slider 55, respectively. The left and right sliding blocks 56 are connected with the front sliding block 54 and the rear sliding block 55 through T-shaped strips, T-shaped sliding grooves are formed in the left and right sliding blocks 56, and through the matching between the T-shaped strips and the T-shaped sliding grooves, the relative sliding between the left and right sliding blocks 56 and the front sliding block 54 as well as between the left and right sliding blocks 56 and the rear sliding block 55 is limited, and the left and right sliding blocks 56 and the front sliding block 54 as well as the rear sliding block 55 are prevented from being separated from each other.
In the use process, firstly, the part blank is installed on the workpiece bottom plate 1, then the part blank and the workpiece bottom plate 1 are placed into the base 3 together, the bidirectional threaded rod 53 is rotated clockwise by the hexagonal wrench, and the part blank is quickly fixed and positioned on the workbench of the processing machine tool. After the parts are machined, the bidirectional threaded rod 53 is rotated anticlockwise by a hexagonal wrench, the workpiece base plate 1 is separated from the base 3, and the parts can be taken out of the machining machine tool quickly.
The specific working principle of the present invention will be explained in detail below:
in the using process, four pull rods 2 fixed on the bottom surface of a workpiece bottom plate 1 are inserted into corresponding holes of a base 3, then a hexagonal wrench is inserted into an inner hexagonal groove formed in a bidirectional threaded rod 53, the bidirectional threaded rod 53 is rotated clockwise, the bidirectional threaded rod 53 drives a front slider 54 and a rear slider 55 to move back and forth while being rotated clockwise, the front slider 54 and the rear slider 55 which move back and forth push four left and right sliders 56 to move back and forth while pushing the left and right sliders 56 to move to the tail end, when the left and right sliders 56 move to the tail end, a convex inclined surface B1 on the left and right sliders 56 contacts and extrudes a concave inclined surface B2 on the pull rods 2 to generate downward pulling force, and the four pull rods 2 simultaneously move downward to drive the workpiece bottom plate 1 to be tightly fixed on the base 3 under the condition of the downward pulling force. In the process of fastening the workpiece bottom plate 1 to the base 3, the four expansion positioning pins 4 are simultaneously stressed to contract centripetally, and because the four expansion positioning pins can contract, the convex conical surfaces A1 on the expansion positioning pins 4 are always kept to be tightly matched with the concave conical surfaces A2 on the workpiece bottom plate 1, so that the four expansion positioning pins 4 well limit the position between the workpiece bottom plate 1 and the base 3, namely, the positioning. When the workpiece bottom plate 1 needs to be taken out, the hexagonal wrench is used for rotating the bidirectional threaded rod 53 anticlockwise, the bidirectional threaded rod 53 is rotated anticlockwise and simultaneously drives the front slider 54 and the rear slider 55 to move oppositely, the front slider 54 and the rear slider 55 which move oppositely drive the four left and right sliders 56 to move oppositely, the left and right sliders 56 do not extrude the pull rod 2 any more when moving oppositely, and finally the workpiece bottom plate 1 is separated from the base 3 and can be taken out.
Although embodiments and principles of operation of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. Zero point location quick clamping system, including work piece bottom plate (1), pull rod (2), base (3), inflation locating pin (4) and locking device (5), its characterized in that: the four pull rods (2) are arranged on the bottom surface of the workpiece bottom plate (1), the four expansion positioning pins (4) are arranged on the top of the base (3), the pull rods (2) are connected with the base (3) in a sliding and penetrating manner, and the locking device (5) is arranged inside the base (3);
the locking device (5) comprises a front plate (51), a rear plate (52), a bidirectional threaded rod (53), a front sliding block (54), a rear sliding block (55), and left and right sliding blocks (56), wherein the bidirectional threaded rod (53) is in threaded penetrating connection with the front sliding block (54) and the rear sliding block (55) respectively, and the left and right sliding blocks (56) are in sliding connection with the front sliding block (54) and the rear sliding block (55) respectively.
2. The zero positioning quick clamping system according to claim 1, characterized in that: the workpiece base plate (1) is provided with four conical holes, and the expansion positioning pins (4) are connected with the inner cavities of the conical holes in a sliding and penetrating mode.
3. The zero positioning quick clamping system according to claim 2, characterized in that: the expansion positioning pin (4) is provided with a convex conical surface (A1), the top of the conical hole is provided with a concave conical surface (A2), and the convex conical surface (A1) is matched with the concave conical surface (A2).
4. The zero positioning quick clamping system according to claim 3, characterized in that: preceding slider (54) and back slider (55) are the symmetry setting for two-way threaded rod (53) relatively, preceding slider (54) and back slider (55) carry out back of the body or relative rectilinear movement through the rotation of two-way threaded rod (53), the both sides of preceding slider (54) and back slider (55) all are connected with T type strip, control between slider (56) and preceding slider (54) and back slider (55) by T type strip sliding connection, control slider (56) and carry out back of the body or relative movement through the promotion of preceding slider (54) and back slider (55).
5. The zero positioning quick clamping system according to claim 4, characterized in that: the tip of controlling slider (56) is equipped with convex inclined plane (B1), the bottom of pull rod (2) is equipped with concave inclined plane (B2), convex inclined plane (B1) and concave inclined plane (B2) are mutually supported.
CN202122940189.0U 2021-11-29 2021-11-29 Zero positioning quick clamping system Active CN216264724U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122940189.0U CN216264724U (en) 2021-11-29 2021-11-29 Zero positioning quick clamping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122940189.0U CN216264724U (en) 2021-11-29 2021-11-29 Zero positioning quick clamping system

Publications (1)

Publication Number Publication Date
CN216264724U true CN216264724U (en) 2022-04-12

Family

ID=81038385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122940189.0U Active CN216264724U (en) 2021-11-29 2021-11-29 Zero positioning quick clamping system

Country Status (1)

Country Link
CN (1) CN216264724U (en)

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