Tool claw device for tool magazine
By designing a tool pawl device for the tool magazine, using a combination structure of locking shaft, spring, limit groove and limit pin, and combined with a small roller device, the problems of long tool changing time and inaccurate positioning of existing tool magazines are solved, and a fast and stable tool changing process is achieved.
Patent Information
- Application Number
- CN202423013617.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-07
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-07
AI Technical Summary
The tool change time of existing tool magazines does not meet the needs of machine tool use, and the chain-type tool magazine operates slowly. Some tool magazines require chain drive and robotic arm to work together, resulting in low tool change efficiency.
Design a tool gripper device for a tool magazine, which adopts a cooperative structure of locking shaft, spring, limit groove and limit pin, combined with a small roller device, to realize the rapid opening and closing of the tool gripper, thereby improving positioning accuracy and tool changing speed.
It achieves a fast and stable tool changing process, improves the tool changing efficiency and positioning accuracy of the tool magazine, and meets the needs of machine tool use.
Smart Images
Figure CN223557931U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tool jaw device for tool magazine belongs to the functional component of machining center machine tool chain type tool magazine. BACKGROUND
[0002] The existing tool magazine is mainly divided into parasol type tool magazine, disc type tool magazine and chain type tool magazine, and a horizontal machining center machine tool needs to be designed at present, the tool magazine capacity is 40 (expandable), the maximum tool length is 550mm, the maximum tool disc diameter (full tool / empty tool) is Φ125 / Φ250, the tool changing time is 3s, the parasol type tool magazine and the disc type tool magazine are limited in tool magazine capacity, and cannot satisfy the machine tool use demand, the existing chain type tool magazine can satisfy the machine tool demand for tool magazine capacity, but for the large capacity chain type tool magazine, the running speed is slow, part of tool changing action still needs the chain to transmit the tool to the specified position, and then the mechanical hand installs the tool on the main shaft, and the tool changing time cannot satisfy the machine tool use demand, therefore, a tool jaw device for tool magazine which can directly pick up the tool and change the tool and is stable in clamping is needed. SUMMARY
[0003] The utility model solves the technical problem to provide a kind of tool jaw device for tool magazine, the tool jaw device not only running speed is fast, and grabbing action is stable, greatly improve tool changing efficiency.
[0004] To solve the above problems, the specific technical scheme of the utility model is as follows: a kind of tool jaw device for tool magazine, including tool seat, tool jaw and locking shaft;Two tool jaws are respectively connected with the two sides of tool seat by pin shaft and symmetrical, one end of tool jaw is clamped with matched tool, and the other end is provided with arc boss;Locking shaft is inserted in the central position of tool seat, one end of spring is supported in the bottom surface of tool seat inner cavity, and the other end is supported in the inner cavity top surface of locking shaft;Limiting slot is arranged on the outer periphery of locking shaft, and arc boss is slidably connected with limiting slot;The outer end of locking shaft is in contact with power cylinder.
[0005] The left and right sides of the tool seat are provided with symmetrical limiting pins, and a limiting surface is provided on the end of the tool jaw away from the tool, and the limiting pins are limited by the limiting surface of the tool jaw when the tool jaw is loosened and the tool is changed.
[0006] The tool clamping surface center of the tool jaw is respectively provided with asymmetrical limiting keys, and the limiting keys are limited by the corresponding limiting slots of the tool when the tool jaw is closed and clamped.
[0007] The two ends of the tool seat are respectively provided with roller devices, and the roller devices are coaxially connected by front guide wheel, rear guide wheel, power wheel and pin shaft;The front guide wheel and the rear guide wheel are respectively located on the front and rear sides of the tool seat, and are connected with the external slide way;The power wheel is located in the tool seat, and is coaxially connected with the front guide wheel and the rear guide wheel through the pin shaft, and the power wheel is connected with the external transmission device.
[0008] The tool holder device for the tool magazine of the present application adopts the above structure and has the following advantages:
[0009] 1. The tool holder device adopts a small roller device to move in a closed track, solving the length fluctuation problem in the chain transmission process, thereby improving the tool changing positioning accuracy.
[0010] 2. The tool holder device adopts a locking shaft and a tool holder to cooperate, through the synergistic effect of a spring, a groove and a limiting pin, to complete the opening and closing locking function of the tool holder, thereby improving the positioning accuracy. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic view of the front structure of the tool holder device.
[0012] Figure 2 Figure 1 A-A sectional view. DETAILED DESCRIPTION
[0013] As shown in Figure 1 , a tool holder device for a tool magazine includes a tool seat 1, a tool holder 2 and a locking shaft 3; two tool holders 2 are respectively connected to the two sides of the tool seat 1 through a pin shaft, one end of the tool holder 2 is clamped with a matched tool, and the other end is provided with an arc-shaped boss 5; the locking shaft 3 is inserted into the center position of the tool seat 1, one end of the spring 4 is supported on the bottom surface of the inner cavity of the tool seat 1, and the other end is supported on the top surface of the inner cavity of the locking shaft 3; a limiting groove 6 is arranged on the outer periphery of the locking shaft 3, and the arc-shaped boss 5 is in sliding cooperation with the limiting groove 6; the outer end of the locking shaft 3 is in contact with the power cylinder.
[0014] The left and right sides of the tool seat 1 are provided with symmetrical limiting pins 7, and a limiting surface is arranged at the end of the tool holder 2 away from the tool; when the tool holder 2 is loosened for tool changing, the limiting pins 7 are in cooperation with the limiting surface of the tool holder 2 for limiting.
[0015] The center position of the tool clamping surface of the tool holder 2 is respectively provided with an asymmetric limiting key 8; when the tool holder 2 is closed and clamped, the limiting key 8 is in cooperation with the limiting groove of the tool for limiting. When the tool holder 2 is closed and clamped, the limiting key 8 is in cooperation with the limiting groove of the tool for limiting, which can prevent the tool from being installed in the wrong direction and the tool from rotating to affect the spindle tool changing when the tool magazine is running.
[0016] The reciprocating movement of the locking shaft 3 can push the tool holder 2 to open and clamp; when the locking shaft 3 advances, the tool holder 2 opens; when the locking shaft 3 retreats, the spring 4 acts, at this time the tool holder 2 clamps, and when the tool holder clamps, the locking shaft 3 and the tool holder 2 form a self-locking angle, so that the tool cannot fall off;
[0017] The two ends of the tool seat 1 are respectively provided with a roller device 10, as shown in Figure 2As shown, the roller device 10 is composed of front guide wheels 11, rear guide wheels 12, power wheels 13 and pin shafts 14 coaxially matched; the front guide wheels 11 and the rear guide wheels 12 are respectively located on the front and rear sides of the tool seat 1 and matched with external slides; the power wheels 13 are located in the tool seat 1 and coaxially matched with the front guide wheels 11 and the rear guide wheels 12 through the pin shafts 14, and the power wheels 13 are connected with external transmission devices. The front guide wheels 11 and the rear guide wheels 12 are connected with external slides, improving the transmission efficiency of the tool seat, and the power wheels 13 are connected with external transmission devices, improving the transmission precision of the whole tool magazine.
Claims
1. A tool gripper device for a tool magazine, characterized by: The utility model relates to a tool holder, which comprises a tool holder (1), a tool jaw (2) and a locking shaft (3), wherein the two tool jaws (2) are symmetrically connected to the two sides of the tool holder (1) through a pin shaft, one end of the tool jaw (2) is clamped with a matched tool, and the other end is provided with an arc-shaped boss (5); the locking shaft (3) is inserted into the center position of the tool holder (1), one end of a spring (4) is supported on the bottom surface of the inner cavity of the tool holder (1), and the other end is supported on the top surface of the inner cavity of the locking shaft (3); a limiting groove (6) is arranged on the outer periphery of the locking shaft (3), the arc-shaped boss (5) is in sliding fit with the limiting groove (6), and the outer end of the locking shaft (3) is in contact fit with a power cylinder.
2. The tool holder device for a tool magazine according to claim 1, characterized in that The left and right sides of the tool holder (1) are provided with symmetric limiting pins (7), and a limiting surface is arranged at the end of the tool jaw (2) away from the tool; when the tool jaw (2) is loosened to change the tool, the limiting pin (7) is in limiting fit with the limiting surface of the tool jaw (2).
3. The tool holder device for a tool magazine according to claim 1, characterized in that: The center position of the tool clamping surface of the tool jaw (2) is respectively provided with asymmetric limiting keys (8), and the limiting key (8) is in limiting fit with a corresponding limiting groove of the tool when the tool jaw (2) is closed and clamped.
4. The tool holder device for a tool magazine according to claim 1, characterized in that: The two ends of the tool holder (1) are respectively provided with a roller device (10), which is composed of a front guide wheel (11), a rear guide wheel (12), a power wheel (13) and a pin shaft (14) in coaxial fit; the front guide wheel (11) and the rear guide wheel (12) are respectively located on the front and rear sides of the tool holder (1) and are in fit with an external slide; the power wheel (13) is located in the tool holder (1) and is in coaxial fit with the front guide wheel (11) and the rear guide wheel (12) through the pin shaft (14), and the power wheel (13) is connected with an external transmission device.