CN224144029U - Lathe work piece centre gripping positioner - Google Patents
Lathe work piece centre gripping positionerInfo
- Publication number
- CN224144029U CN224144029U CN202520602850.2U CN202520602850U CN224144029U CN 224144029 U CN224144029 U CN 224144029U CN 202520602850 U CN202520602850 U CN 202520602850U CN 224144029 U CN224144029 U CN 224144029U
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- clamping
- block
- blocks
- moving
- base
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Abstract
一种车床工件夹持定位装置，用于解决背景技术中提到的现有技术的工件夹持装置通过气缸直接推动单侧夹具抵紧工件，可能存在夹持力分布不均、导致在对工件加工时可能存在工件的偏转，影响产品质量的技术问题，包括用于放置工件的基座，基座上设有对称分布的两块安装块，两块安装块上均滑动连接有移动块，两个移动块上分别设有用于配合基座内壁对工件进行夹持的夹持组件，基座内设有用于驱动两块移动块在安装块内沿着基座长度方向移动的第一驱动组件，基座两侧分别设有夹持台，两个夹持台上均转动设有夹持块，基座上开设有两条通槽，两块移动块底部分别滑动设于两条通槽内，两块移动块底部均设有用于驱动夹持块转动并与工件抵接的第二驱动组件。
A lathe workpiece clamping and positioning device is provided to address the technical problem mentioned in the background art: existing workpiece clamping devices, which directly push a single-sided clamp with a cylinder to clamp the workpiece, may suffer from uneven clamping force distribution, leading to workpiece deflection during machining and affecting product quality. The device includes a base for placing the workpiece, two symmetrically distributed mounting blocks on the base, each mounting block having a slidingly connected movable block. Each movable block has a clamping assembly for clamping the workpiece against the inner wall of the base. A first driving assembly within the base drives the two movable blocks to move along the length of the base within the mounting blocks. Clamping platforms are located on both sides of the base, each clamping platform having a rotatable clamping block. Two through slots are formed on the base, with the bottoms of the two movable blocks slidably positioned within these slots. A second driving assembly at the bottom of each movable block drives the clamping block to rotate and abut against the workpiece.
Description
Technical Field
The utility model relates to the technical field of workpiece clamping, in particular to a workpiece clamping and positioning device of a lathe.
Background
In the machining industry, lathes are one of the most widely used machines. The lathe is a lathe which mainly uses a turning tool to carry out turning on a rotating workpiece, and can also be used for carrying out corresponding machining by using a drill bit, a reamer, a tap, a die, a knurling tool and the like.
The patent document of the prior art, such as the patent publication with the publication number of CN219805616U and the patent name of a bidirectional clamp convenient to operate, discloses a workpiece clamping device, which comprises an air cylinder, wherein the air cylinder is arranged on the lower surface of a processing table, a piston rod on the air cylinder is connected with the lower end of a locking block, the locking block is positioned on the upper surface of the processing table, the side wall of the locking block is connected with a sliding block in a matched manner, one end of a workpiece is clamped by the sliding block, and the other end of the workpiece is clamped by a fixing device.
In the above patent document, the cylinder directly pushes the single-side clamp to tightly press the workpiece, so that uneven distribution of clamping force may exist, and deflection of the workpiece may exist when the workpiece is processed, thereby reducing processing precision and affecting product quality.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a workpiece clamping and positioning device for a lathe, which is used for solving the technical problems that in the prior art, a single-side clamp is directly pushed to abut against a workpiece by a cylinder, the clamping force is unevenly distributed, the workpiece is likely to deflect during processing, the processing precision is reduced, and the product quality is affected.
The technical aim of the utility model is realized by the following technical scheme:
The utility model provides a lathe work piece centre gripping positioner, includes the base that is used for placing the work piece, be equipped with two installation pieces of symmetric distribution on the base, two equal sliding connection has the movable block on the installation piece, two be equipped with respectively on the movable block and be used for cooperating the base inner wall to carry out the centre gripping subassembly of work piece, be equipped with in the base and be used for driving two movable blocks and follow the first drive assembly that base length direction removed in the installation piece, the base both sides are equipped with the grip block respectively, two all rotate on the grip block and be equipped with the grip block, two logical grooves have been seted up on the base, two the movable block bottom slides respectively and locates two logical inslot, two the movable block bottom all is equipped with the second drive assembly who is used for driving the grip block rotation and with the work piece butt.
Working principle:
Firstly, an operator places a workpiece to be clamped on a base, then the operator starts a first driving assembly, the first driving assembly can push two moving blocks, so that the two moving blocks can be mutually far away on two installation blocks in one-to-one correspondence, one side of each moving block, which is close to the side wall of the base, can be gradually close to the workpiece, two ends of the bottom of the workpiece are clamped between the inner wall of the base and the moving blocks, when the moving blocks are moved, the bottom of the moving block can move in a through groove, the moving blocks can drive a second clamping assembly, the second clamping assembly can clamp the top surface of the workpiece, and the workpiece can be firmly clamped on the base.
Compared with the prior art, the utility model has the following beneficial effects:
First, be equipped with installation piece and movable block, through two installation pieces and two movable blocks of symmetry setting, can realize two-way synchronous centre gripping of two movable blocks when first drive assembly drives two movable blocks to accomplish the location and the centre gripping operation to the work piece.
The second, be equipped with second drive assembly, the movable block can synchronous drive second drive assembly when being close to the work piece, and the second drive assembly can synchronous drive grip block rotates and makes grip block and work piece top surface butt to form the synchronous centre gripping of multidimension degree, further improve the stability to the work piece centre gripping.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the structure shown in FIG. 1A;
FIG. 3 is a schematic cross-sectional view of a clamping table and clamping blocks;
Fig. 4 is a schematic cross-sectional structure of the moving lever.
The reference numerals indicate that the base 1, the mounting block 2, the moving block 3, the clamping table 4, the clamping block 5, the through groove 6, the first guide rod 7, the abutting plate 8, the first spring 9, the air cylinder 10, the connecting rod 11, the second guide rod 12, the second spring 13, the fixed block 14, the connecting block 15, the moving rod 16, the pushing rod 17, the pushing block 18 and the abutting groove 19.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
Examples:
As shown in fig. 1, a lathe workpiece clamping and positioning device comprises a base 1 for placing workpieces, wherein the workpieces to be processed are in a bald shape and are required to be clamped at two ends of the bottom of the base, two symmetrically distributed mounting blocks 2 are arranged on the base 1, moving blocks 3 are slidably connected to the two mounting blocks 2, through sliding grooves are formed in the two mounting blocks 2, the length direction of the sliding grooves is parallel to the length direction of the base 1, and the moving track of the moving blocks 3 can be restrained through the mounting blocks 2 to form a stable clamping frame.
As shown in fig. 1 and 2, a clamping assembly for clamping a workpiece by matching with the inner wall of the base 1 is respectively arranged on the two moving blocks 3, the clamping assembly comprises two first guide rods 7, a propping plate 8 and two first springs 9, the two first guide rods 7 are slidably connected onto the moving blocks 3, the propping plate 8 is fixedly arranged on the two first guide rods 7, the two springs are respectively sleeved on the two first guide rods 7 and the two ends of each spring are respectively fixedly connected with the moving blocks 3 and the propping plate 8, the moving blocks 3 form an elastic clamping structure with the propping plate 8 through the first guide rods 7 and the first springs 9, and the first springs 9 provide pretightening force to enable the propping plate 8 to adaptively adjust the compression amount when contacting the workpiece.
As shown in fig. 1, a first driving assembly for driving two moving blocks 3 to move along the length direction of the base 1 in the mounting block 2 is arranged in the base 1, the first driving assembly comprises an air cylinder 10 and two connecting rods 11, the air cylinder 10 is fixedly arranged on the base 1, the two connecting rods 11 are rotationally connected to the telescopic ends of the air cylinder 10, the ends of the two connecting rods 11 far away from the air cylinder 10 are respectively rotationally connected with the ends of the corresponding two moving blocks 3, the telescopic ends of the air cylinder 10 extend out to synchronously drive the two connecting rods 11, the two connecting rods 11 synchronously drive the two moving blocks 3 to synchronously move on the two mounting blocks 2, so that the two moving blocks 3 can synchronously approach to a workpiece, and the positioning centering and clamping of the workpiece are completed.
As shown in fig. 1, two installation blocks 2 are respectively provided with a compensation component for withdrawing the moving block 3 from the installation block 2, the compensation component comprises two second guide rods 12 and two second springs 13, the two second guide rods 12 are fixedly arranged on the installation block 2, two sides of the moving block 3 are respectively connected with the two second guide rods 12 in a sliding manner, the two second springs 13 are respectively sleeved on the two second guide rods 12, two ends of the second springs 13 are respectively fixedly connected with the installation block 2 and the moving block 3, the second guide rods 12 and the second springs 13 form an elastic withdrawing mechanism of the moving block 3, when the telescopic ends of the air cylinders 10 outwards extend to push the two moving blocks 3, the second springs 13 are converted into a compressed state from a natural state, and when the telescopic ends of the air cylinders 10 retract, the second springs 13 can release pushing forces so as to facilitate withdrawing of the moving block 3 from the installation block 2.
As shown in fig. 1, fig. 3 and fig. 4, the two sides of the base 1 are respectively provided with clamping tables 4, clamping blocks 5 are respectively and rotatably arranged on the two clamping tables 4, fixing blocks 14 are respectively and fixedly arranged on the two clamping tables 4, connecting blocks 15 are respectively and rotatably connected on the two fixing blocks 14, two connecting blocks 15 are respectively and rotatably connected with the two clamping blocks 5, moving rods 16 are respectively and slidably arranged on the two clamping tables 4 in a penetrating manner, the end parts of the two moving rods 16 are respectively and rotatably connected with the corresponding clamping blocks 5, two second driving components are used for driving the corresponding two moving rods 16 to vertically move, the clamping blocks 5 form a revolute pair with the moving rods 16 through the fixing blocks 14 and the connecting blocks 15, pushing rods 17 slide along through grooves 6 at the bottom of the moving blocks 3, and horizontal thrust is converted into vertical displacement through inclined butt grooves 19 to drive the clamping blocks 5 to rotationally clamp the end faces of workpieces around the axes on the fixing blocks 14.
As shown in fig. 1, 3 and 4, two through grooves 6 are formed in the base 1, bottoms of the two moving blocks 3 are respectively and slidably arranged in the two through grooves 6, second driving assemblies for driving the clamping blocks 5 to rotate and abut against workpieces are respectively arranged at bottoms of the two moving blocks 3, each second driving assembly comprises a push rod 17 and a pushing block 18, the push rod 17 is fixedly arranged at the bottoms of the moving blocks 3, the push rod 17 slidably passes through the clamping table 4, an inclined abutting groove 19 is formed in the moving rod 16, the pushing block 18 is fixedly arranged on the push rod 17, the pushing block 18 is slidably arranged in the abutting groove 19 and is used for vertically driving the moving rod 16, when the push rod 17 slides along with the moving block 3, the pushing block 18 enters the inclined abutting groove 19 of the moving rod 16, horizontal driving force is converted into vertical displacement through an inclined plane, and the clamping blocks 5 are driven to complete axial clamping actions.
Working principle:
Firstly, an operator places a workpiece on a base 1, then the operator starts an air cylinder 10, the telescopic end of the air cylinder 10 stretches out and pushes two connecting rods 11, the two connecting rods 11 drive two side moving blocks 3 to synchronously slide towards two ends of the bottom of the workpiece along the length direction of an installation block 2, when the moving blocks 3 move, abutting plates 8 on the moving blocks 3 are abutted with the workpiece at first, first guide rods 7 guide the abutting plates 8 to linearly move, and first springs 9 generate flexible clamping force through pretightening force to adaptively compensate the end faces of the workpiece.
When the movable block 3 slides along the through groove 6, the pushing rod 17 at the bottom of the movable block 3 pushes the pushing block 18 to enter the inclined abutting groove 19 of the movable rod 16, horizontal pushing force is converted into vertical displacement, the movable rod 16 is driven to vertically lift on the clamping table 4, the movable rod 16 can push the clamping block 5, the clamping block 5 can rotate around the axis of the fixed block 14 through the connecting block 15, and therefore the clamping block 5 can compress the end face of a workpiece, and stable clamping of the workpiece is further improved.
After the machining is finished, the air cylinder 10 is retracted, the connecting rod 11 drives the moving block 3 to move, the second spring 13 can push the moving block 3, the moving block 3 is convenient to withdraw from the installation block 2, the moving block 3 moves to drive the pushing block 18 on the pushing rod 17 to move in the abutting groove 19, the moving rod 16 vertically moves downwards, the clamping block 5 loosens the end face of the workpiece under the action of the moving rod 16, the abutting plate 8 is gradually far away from the workpiece along with the movement of the moving block 3, and the first spring 9 is reset in a rebound mode, so that the workpiece release is finished.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520602850.2U CN224144029U (en) | 2025-04-01 | 2025-04-01 | Lathe work piece centre gripping positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520602850.2U CN224144029U (en) | 2025-04-01 | 2025-04-01 | Lathe work piece centre gripping positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224144029U true CN224144029U (en) | 2026-04-21 |
Family
ID=99470573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520602850.2U Active CN224144029U (en) | 2025-04-01 | 2025-04-01 | Lathe work piece centre gripping positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224144029U (en) |
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2025
- 2025-04-01 CN CN202520602850.2U patent/CN224144029U/en active Active
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