Tool locking and locking device for machine tool

Abstract

The invention discloses a tool locking and locking device for a machine tool. The tool locking and locking device for the machine tool comprises a tool handle and a tool installed on the tool handle, and a self-locking assembly used for locking the tool is installed on the tool handle. According to the cutter locking and loosening preventing device for the machine tool, due to the fact that the transmission torque of the ratchet wheel and the pawl is forward, the cutter can be installed on the cutter handle after being inserted to the preset position, and if the cutter tends to slip off from the cutter handle, the ratchet wheel and the pawl are locked due to the forward transmission torque of the ratchet wheel and the pawl and the reverse transmission torque of the ratchet wheel and the pawl; when the cutter needs to be replaced or maintained, the pressing plates on the two pawls are pressed oppositely, so that the pawls rotate around the support seat and are separated from the ratchet wheel, and then the cutter slides down along the cutter handle, so that the cutter can be disassembled.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool tool locking, and in particular to a machine tool tool locking and anti-loosening device. Background Art

[0002] During the process of machining parts on machine tools, they will experience long periods of vibration. The traditional tool clamping mechanism is locked by a single locking nut. However, during the machining process, especially when the machining time is long and the feed amount is large, the tool clamping mechanism is prone to loosening. Once the tool is loose, it will cause damage to the workpiece and the tool. If the situation is serious, it will also bring danger to the operator.

[0003] Therefore, it is necessary to provide a new tool locking and anti-loosening device for machine tools to solve the above technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a tool locking and anti-loosening device for machine tools.

[0005] The tool locking and anti-loosening device for machine tools provided by the present invention comprises a tool handle and a tool mounted on the tool handle, and a self-locking component for locking the tool is mounted on the tool handle; Among them, the self-locking component includes a sleeve frame, which is fixedly installed on the knife handle, and the rotating shafts fixedly installed on both sides of the sleeve frame are sleeved with rotatably connected gears, and ratchets are fixedly installed on the same side wheel surfaces of the two gears. Two symmetrically distributed bracket seats are fixedly installed on the sleeve frame, and a rotatably connected pawl is sleeved on the rotating rod on each of the bracket seats, and the rotating rod is also sleeved with a torsion spring for driving the pawl to engage the ratchet.

[0006] Tooth plates matching the gears are arranged on both sides of the cutter.

[0007] Preferably, a pressing plate is fixedly mounted on both of the pawls.

[0008] Preferably, the two gears respectively pass through two symmetrically distributed side cavities opened in the tool handle and extend to the inner cavity of the tool handle.

[0009] Preferably, side grooves are formed on both side walls of the gear, and the toothed plates are fixedly mounted on the side grooves.

[0010] Preferably, the bottom of the knife is provided with an integrally formed blade portion.

[0011] Preferably, a protective cover for covering the self-locking component is installed on the knife handle, and the pressing plate on the self-locking component extends out of the protective cover.

[0012] Compared with the related art, the tool locking and anti-loosening device for machine tools provided by the present invention has the following beneficial effects: When the tool is installed on the tool handle of the present invention, the tool is inserted into the tool handle until the tooth plate and the gear on the tool are meshed with each other, and then the tool is inserted. At this time, the two gears on the self-locking component rotate in opposite directions, and at the same time, the ratchet is driven to rotate synchronously. At this time, due to the positive transmission torque of the ratchet and the pawl, the tool can be installed on the tool handle after being inserted to the predetermined position. If the tool has a tendency to slip off the tool handle, at this time, due to the positive transmission torque of the ratchet and the pawl, the transmission torque is reversed, thereby locking the ratchet and the pawl to prevent the tool from loosening from the tool handle, thereby improving the stability of tool locking. When the tool needs to be replaced or maintained, the pressing plates on the two pawls are pressed toward each other, so that the pawl rotates around the bracket seat and disengages from the ratchet, and then the tool is slid down along the tool handle to complete the removal of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of the tool locking and anti-loosening device for machine tools provided by the present invention.

[0014] Figure 2 for Figure 1 Schematic diagram of the explosion structure shown.

[0015] Figure 3 for Figure 2 Schematic diagram of the structure of the self-locking component shown.

[0016] Figure 4 for Figure 2 Schematic diagram of the structure of the tool shown.

[0017] Numbers in the figure: 1, tool handle; 1a, side cavity; 2, tool; 2a, side groove; 21, blade; 22, tooth plate; 3, self-locking assembly; 31, socket frame; 32, gear; 33, ratchet; 34, bracket seat; 35, pawl; 36, pressing plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] See also Figures 1 to 4 An embodiment of the present invention provides a tool locking and anti-loosening device for a machine tool, wherein the tool locking and anti-loosening device for a machine tool comprises a tool handle 1 and a tool 2 mounted on the tool handle 1.

[0021] In the embodiments of the present invention, please refer to Figures 1 to 4 , tooth plates 22 are provided on both sides of the tool 2, specifically, side grooves 2a are provided on both side walls of the gear 32, the tooth plates 22 are fixedly mounted on the side grooves 2a, and an integrally formed blade portion 21 is provided at the bottom of the tool 2; A self-locking component 3 for locking the tool 2 is installed on the tool handle 1, and the self-locking component 3 includes a sleeve frame 31, which is fixedly installed on the tool handle 1, and the rotating shafts fixedly installed on both sides of the sleeve frame 31 are sleeved with rotatably connected gears 32, and the two gears 32 respectively pass through the two symmetrically distributed side cavities 1a opened in the tool handle 1 and extend to the inner cavity of the tool handle 1, and a ratchet 33 is fixedly installed on the same side wheel surface of the two gears 32, and two symmetrically distributed bracket seats 34 are fixedly installed on the sleeve frame 31, and a rotatably connected pawl 35 is sleeved on the rotating rod on each of the bracket seats 34, and the rotating rod is also sleeved with a torsion spring for driving the pawl 35 to engage the ratchet 33, and a pressing plate 36 is fixedly installed on the two pawls 35.

[0022] It should be noted that: when installing the tool 2 on the tool handle 1, the tool 2 is inserted into the tool handle 1 (keeping the side grooves 2a on both sides of the tool 2 corresponding to the gears 32), and the tool 2 is continued to be inserted until the toothed plate 22 on the tool 2 is meshed with the gear 32. At this time, the two gears 32 on the self-locking component 3 rotate in opposite directions, and at the same time, the ratchet 33 is also driven to rotate synchronously. At this time, due to the positive transmission torque of the ratchet 33 and the pawl 35, the tool 2 can be installed on the tool handle 1 after being inserted to the predetermined position. If the tool 2 has a tendency to slip off the tool handle 1, at this time, due to the positive transmission torque of the ratchet 33 and the pawl 35, the transmission torque is reversed, thereby locking the ratchet 33 and the pawl 35 to prevent the tool 2 from loosening from the tool handle 1, thereby improving the stability of the locking of the tool 2. When the tool 2 needs to be replaced or maintained, the pressing plates 36 on the two ratchets 35 are pressed toward each other, so that the ratchets 35 rotate around the bracket seat 34 and disengage from the ratchet 33, and then the tool 2 is slid down along the handle 1 to complete the removal of the tool 2.

[0023] Furthermore, a protective cover for covering the self-locking component 3 is installed on the knife handle 1, and the pressing plate 36 on the self-locking component 3 extends out of the protective cover, so as to protect the self-locking component 3.

[0024] The working principle of the tool locking and anti-loosening device for machine tools provided by the present invention is as follows: When installing the tool 2 on the tool handle 1, the tool 2 is inserted into the tool handle 1 (keeping the side grooves 2a on both sides of the tool 2 corresponding to the gears 32), and the tool 2 is continued to be inserted until the toothed plate 22 on the tool 2 and the gear 32 are meshed with each other. At this time, the two gears 32 on the self-locking component 3 rotate in opposite directions, and at the same time, the ratchet 33 is also driven to rotate synchronously. At this time, due to the positive transmission torque of the ratchet 33 and the pawl 35, the tool 2 can be installed on the tool handle 1 after being inserted to the predetermined position. When the tool 2 tends to slip off the tool handle 1, the ratchet 33 and the pawl 35 have a positive transmission torque and a negative transmission torque, thereby locking the ratchet 33 and the pawl 35 to prevent the tool 2 from loosening from the tool handle 1, thereby improving the stability of the locking of the tool 2. When the tool 2 needs to be replaced or maintained, the pressing plates 36 on the two pawls 35 are pressed toward each other, so that the pawl 35 rotates around the bracket seat 34 and disengages from the ratchet 33, and then the tool 2 is slid down along the tool handle 1 to complete the disassembly of the tool 2.

[0025] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tool locking and anti-loosening device for machine tools, characterized in that: Comprising a knife handle (1) and a knife (2) mounted on the knife handle (1), wherein the knife handle (1) is mounted with a self-locking component (3) for locking the knife (2); The self-locking assembly (3) comprises a sleeve frame (31), the sleeve frame (31) is fixedly mounted on the knife handle (1), and the rotating shafts fixedly mounted on both sides of the sleeve frame (31) are sleeved with rotatably connected gears (32), and ratchets (33) are fixedly mounted on the same side wheel surfaces of the two gears (32), and two symmetrically distributed bracket seats (34) are fixedly mounted on the sleeve frame (31), and a rotatably connected ratchet (35) is sleeved on the rotating rod on each of the bracket seats (34), and a torsion spring for driving the ratchet (35) to abut against the ratchet (33) is also sleeved on the rotating rod; Tooth plates (22) matching the gears (32) are provided on both sides of the cutter (2).

2. The tool locking and anti-loosening device for machine tools according to claim 1, characterized in that: A pressing plate (36) is fixedly mounted on each of the two ratchet claws (35).

3. The tool locking and anti-loosening device for machine tools according to claim 1, characterized in that: The two gears (32) respectively pass through two symmetrically distributed side cavities (1a) opened in the knife handle (1) and extend into the inner cavity of the knife handle (1).

4. The tool locking and anti-loosening device for machine tools according to claim 1, characterized in that: Side grooves (2a) are provided on both side walls of the gear (32), and the toothed plate (22) is fixedly mounted on the side grooves (2a).

5. The tool locking and anti-loosening device for machine tools according to claim 4, characterized in that: The bottom of the knife (2) is provided with an integrally formed blade portion (21).

6. The tool locking and anti-loosening device for machine tools according to claim 2, characterized in that: A protective cover for covering the self-locking component (3) is mounted on the knife handle (1), and a pressing plate (36) on the self-locking component (3) extends out of the protective cover.

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