A lathe turret structure

Abstract

The present patent application belongs to the technical field of numerical control machining, and specifically relates to a lathe turret structure, including a tool holder and a tool disc. The tool disc can rotate and move along the X, Y, and Z axis directions through a moving mechanism. A plurality of placement components are arranged on the tool holder, and a plurality of tool changing mechanisms are arranged circumferentially of the tool disc. The tool changing mechanism can remove and fix the tool of the placement component, or loosen the tool and put it into the placement component. During machining, the tool changing mechanism fixes the tool, and the tool disc adjusts the position of the tool to process the workpiece. When the tool needs to be changed, the tool disc is driven to move through the moving mechanism so that the tool to be replaced is aligned with the empty placement component, and the tool changing mechanism loosens the tool and puts it into the placement component, and then adjusts the position of the tool changing mechanism so that the empty tool changing mechanism is aligned with the placement component of the tool to be replaced, removes and fixes the corresponding tool, and automatically completes the tool change, without the need for manual tool change or lathe replacement after shutdown, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machining, and in particular to a lathe turret structure. Background Art

[0002] The tool holder structure of existing CNC lathes is mainly divided into turret type and row tool type. Among them, the turret structure generally includes a rotatable tool disc, which is installed on a moving mechanism that can move along the X, Y, and Z axis directions. A tool is installed circumferentially on the tool disc, and the workpiece to be processed is mounted on a rotatable three-jaw chuck. By driving the workpiece to rotate, the moving mechanism drives the tool to adjust its position, and after contacting the workpiece, the workpiece is processed. Each tool corresponds to a processing procedure.

[0003] However, in the turret structure, the number of tools is limited by the tool positions on the chuck. When there are many processing steps on a single workpiece, or when processing different types of workpieces, it is necessary to stop the machine and manually replace different tools or lathes for processing, which affects the parts processing efficiency. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a lathe turret structure that can automatically complete tool change during the machining process.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A lathe turret structure includes a tool holder and a tool disc. The tool disc is rotatable and can be moved along the X, Y and Z axis directions through a moving mechanism. A plurality of placement components are provided on the tool holder. The placement components are used to loosen or fix the tool. A plurality of tool changing mechanisms are provided circumferentially of the tool disc. After each of the tool changing mechanisms is aligned with the corresponding placement component, the tool of the placement component can be removed and fixed, or the tool can be loosened and placed in the placement component.

[0007] Working principle: During processing, the tool changing mechanism fixes the tool, the tool disc adjusts the position of the tool, and processes the workpiece. When the tool needs to be changed, the tool disc is driven to move by the moving mechanism so that the tool to be replaced is aligned with the empty placement component. The tool changing mechanism releases the tool and places it into the placement component, and then adjusts the position of the tool changing mechanism so that the empty tool changing mechanism is aligned with the placement component of the tool to be replaced, removes and fixes the corresponding tool, and completes the replacement.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] By setting up placement components and switching mechanisms, tool changes can be completed automatically during the processing process, without the need to stop the machine for manual tool change or replacement of lathes, thereby improving production efficiency.

[0010] As a preferred embodiment of the present invention, each of the tool changing mechanisms includes a pushing component and a first clamping part, a mounting groove is circumferentially opened on the tool disc, the first clamping part is slidably installed in the mounting groove, and each of the placement components includes a second clamping part, and the first clamping part and the second clamping part can both loosen or fix the tool; the pushing component can drive the first clamping part to move toward the corresponding second clamping part.

[0011] Beneficial effect: The first clamping part and the tool are moved by pushing the assembly, and the tool is taken out by loosening and fixing the first clamping part and the second clamping part.

[0012] As a preferred embodiment of the present invention, the pushing assembly includes an electromagnet and a first compression spring. The first compression spring is arranged between the first clamping part and the inner side of the mounting groove along the sliding direction of the first clamping part. The electromagnet is installed on the inner side of the mounting groove and can adsorb the first clamping part and the tool to move toward the inner side of the mounting groove.

[0013] Beneficial effect: When the electromagnet is energized, it can adsorb the tool and the first clamping part to move toward the inside of the installation groove, and compress the first compression spring to fix the tool by magnetic force; when the electromagnet is de-energized, the elasticity of the first compression spring is utilized to make the first clamping part and the tool move toward the outside, contact with the second clamping part, and change the tool.

[0014] As a preferred embodiment of the present invention, the first clamping portion includes a first vertical plate and a first bottom plate, the inner side of the first vertical plate is fixedly connected to the first compression spring, the first bottom plate is fixedly connected to the lower part of the first vertical plate and is located on the outer side of the first vertical plate, and the first bottom plate and the first vertical plate limit the tool.

[0015] Beneficial effect: when the electromagnet is powered off, the elasticity of the first compression spring is utilized to make the first clamping portion and the tool move outward, the first bottom plate can support the tool, and the first bottom plate contacts the mounting groove to play a limiting role during movement.

[0016] As a preferred embodiment of the present invention, a first top plate is fixedly connected in the mounting groove, the first top plate limits the upper end surface of the tool and the first vertical plate, the lower end surface of the first top plate is provided with an elastic top block, and when the first clamping part fixes the tool, the bottom surface of the elastic top block rests on the upper end surface of the tool.

[0017] Beneficial effect: By setting the first top plate and the elastic top block, a vertical squeezing force can be exerted on the tool when fixing the tool, and the fixing effect is better with the horizontal magnetic force; compared with directly installing the elastic block in the installation groove, the installation groove space is small and it is more inconvenient to punch a hole. After installing the elastic top block on the first top plate, it is more convenient to install the whole into the installation groove.

[0018] As a preferred embodiment of the present invention, the second clamping portion includes a second vertical plate, a second bottom plate and a second top plate, the second bottom plate and the second top plate are fixedly connected to the second vertical plate, and when changing the tool, the opening formed by the second bottom plate and the second top plate faces the corresponding mounting groove;

[0019] A second compression spring is vertically arranged on the lower end surface of the second top plate, and a tightening plate is arranged on the lower end surface of the second compression spring;

[0020] The tool comprises a handle, both sides of the lower part of the handle are provided with chamfers, and the upper part of the handle is provided with a chamfer on one side close to the second vertical plate;

[0021] When placing the knife, the upper end surface of the first bottom plate is in contact with the lower end surface of the second bottom plate, and the knife handle is lifted up to the second bottom plate. The lower end surface of the first top plate is provided with an escape opening. During the lifting process, the knife handle passes through the escape opening until it contacts the second vertical plate.

[0022] When taking out the knife, the first bottom plate is pushed between the second bottom plate and the knife handle by the pushing component, and then the pushing component drives the knife and the first clamping part to move into the installation groove.

[0023] Working principle: when releasing the knife, the electromagnet is powered off, and due to the elastic force of the first compression spring, the first vertical plate drives the knife handle to move toward the second vertical plate. Since the first bottom plate is located below the second bottom plate, the chamfered part corresponding to the knife handle contacts the second bottom plate and the tightening plate, and at this time the knife handle is located below the avoidance opening, the second bottom plate lifts the knife handle, and the knife handle is separated from the first bottom plate. The knife handle continues to move under the push of the first vertical plate, and the knife handle moves along the upper end surface of the second bottom plate until it contacts the second vertical plate. The tightening plate presses the knife handle to complete the knife release, and the electromagnet is powered on to reset the first clamping part; when taking the knife, the electromagnet is powered off, the first vertical plate moves outward, and the first bottom plate is located above the second bottom plate. Due to the chamfer on the knife handle, the first bottom plate and the knife handle are separated. After the electromagnet is powered on, the knife handle and the second vertical plate are adsorbed, the knife handle is pulled out and reset, and the knife change is completed.

[0024] As a preferred embodiment of the present invention, a bevel block is provided on one side of the clamping plate close to the mounting groove, the bottom surface of the bevel block is lower than the lower end surface of the clamping plate, and when the first bottom plate is pushed between the second bottom plate and the knife handle by the pushing assembly, the first vertical plate lifts up the bevel block.

[0025] Beneficial effect: When the first base plate is pushed between the second base plate and the tool handle by the pushing assembly, the first vertical plate lifts up the inclined block. After the electromagnet is energized, the tool handle and the first vertical plate move toward the inside of the mounting groove. At this time, the inclined block moves to the upper end of the tool handle. The contact area between the inclined block and the tool handle is small, and the friction force generated is small, thereby avoiding the friction force causing the tool to be unable to detach from the second clamping part.

[0026] As a preferred embodiment of the present invention, the tool holder includes a chain transmission mechanism, and a plurality of the placement components are arranged at intervals on the chain transmission mechanism and move following the chain transmission mechanism.

[0027] Beneficial effect: By setting up a chain transmission mechanism, the replacement position coordinates can be set through the program, and the tool to be replaced can be moved to the corresponding position coordinates, which is convenient for the tool disc to be aligned, and the chain transmission mechanism can place more tools in the space of the same height. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of a lathe turret structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a tool in an embodiment of a lathe turret structure of the present invention;

[0030] Figure 3 This is a partial cross-sectional view of the lathe turret structure embodiment of the present invention when the tool is placed Figure 1 ;

[0031] Figure 4 This is a partial cross-sectional view of the lathe turret structure embodiment of the present invention when the tool is placed Figure 2 ;

[0032] Figure 5 This is a partial cross-sectional view of the lathe turret structure embodiment of the present invention when the tool is placed Figure 3 ;

[0033] Figure 6 This is a partial cross-sectional view of the lathe turret structure embodiment of the present invention when the tool is placed Figure 4 ;

[0034] Figure 7 It is a partial cross-sectional view of the lathe turret structure embodiment of the present invention when the tool is removed.

[0035] The reference numerals include: chain transmission mechanism 1, placement component 2, second clamping part 21, second vertical plate 211, second bottom plate 212, second top plate 213, second compression spring 214, tightening plate 215, inclined block 216, tool disc 3, mounting groove 31, tool changing mechanism 4, pushing component 41, electromagnet 411, first compression spring 412, first clamping part 42, first vertical plate 421, first bottom plate 422, first top plate 423, elastic top block 424, tool 5, tool handle 51. DETAILED DESCRIPTION

[0036] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0037] In the description of the present application, the terms "first", "second", etc. are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] See also Figure 1 As shown, the lathe turret structure of this embodiment includes a tool holder and a tool disc 3, the tool disc 3 is rotatable and moves along the X, Y, and Z axis directions through a moving mechanism, the tool holder includes a chain transmission mechanism 1 and a plurality of placement components 2, the placement components 2 are used to loosen or fix the tool 5, and the plurality of placement components 2 are arranged at intervals on the chain transmission mechanism 1 and move with the chain transmission mechanism 1; by setting the chain transmission mechanism 1, the position coordinates of the tool 5 to be replaced can be set by a program, and the tool 5 to be replaced can be moved to the corresponding position coordinates, so as to facilitate the alignment of the tool disc 3; the tool disc 3 is provided with a plurality of tool changing mechanisms 4 in the circumference, each of which is provided with a plurality of tool changing mechanisms 4. After the tool changing mechanism 4 is aligned with the corresponding placement component 2, the tool 5 of the placement component 2 can be removed and fixed, or the tool 5 can be loosened and placed in the placement component 2; during processing, the tool changing mechanism 4 fixes the tool 5, and the tool disc 3 adjusts the position of the tool 5 to process the workpiece. When the tool needs to be changed, the tool disc 3 is driven to move by the moving mechanism so that the tool 5 to be replaced is aligned with the empty placement component 2, the tool changing mechanism 4 loosens the tool 5 and places it in the placement component 2, and then the position of the tool changing mechanism 4 is adjusted so that the empty tool changing mechanism 4 is aligned with the placement component 2 of the tool 5 to be replaced, the corresponding tool 5 is removed and fixed, and the replacement is completed.

[0039] In this embodiment, the moving mechanism uses a plurality of electric push rods to adjust the position of the cutter disc 3 .

[0040] Among them, see Figure 1 As shown, each of the tool changing mechanisms 4 includes a pushing component 41 and a first clamping portion 42. A mounting groove 31 is circumferentially opened on the tool disc 3. The first clamping portion 42 is slidably installed in the mounting groove 31. Each of the placement components 2 includes a second clamping portion 21. The first clamping portion 42 and the second clamping portion 21 can both release or fix the tool 5; the pushing component 41 can drive the first clamping portion 42 to move toward the corresponding second clamping portion 21.

[0041] Among them, see Figures 3 to 7As shown, the pushing assembly 41 includes an electromagnet 411 and a first compression spring 412. The first compression spring 412 is arranged between the first clamping portion 42 and the inner side of the mounting groove 31 along the sliding direction of the first clamping portion 42. The electromagnet 411 is installed on the inner side of the mounting groove 31. When the electromagnet 411 is energized, it can adsorb the tool 5 and the first clamping portion 42 to move toward the inner side of the mounting groove 31, and compress the first compression spring 412 to fix the tool 5 by magnetic force; when the electromagnet 411 is de-energized, the elasticity of the first compression spring 412 is utilized to make the first clamping portion 42 and the tool 5 move toward the outside, contact the second clamping portion 21, and change the tool.

[0042] Among them, see Figure 3 As shown, the first clamping portion 42 includes a first vertical plate 421 and a first bottom plate 422, the inner side of the first vertical plate 421 is fixedly connected to the first compression spring 412, the first bottom plate 422 is fixedly connected to the lower part of the first vertical plate 421, and is located on the outer side of the first vertical plate 421, the first bottom plate 422 and the first vertical plate 421 limit the tool 5; when the electromagnet 411 is powered off, the elasticity of the first compression spring 412 is utilized to make the first clamping portion 42 and the tool 5 move toward the outside, the first bottom plate 422 can support the tool 5, and the first bottom plate 422 is in contact with the mounting groove 31, playing a role of limiting when moving.

[0043] Among them, see Figure 3 As shown, a first top plate 423 is fixedly connected in the installation groove 31, and the first top plate 423 limits the upper end surfaces of the tool 5 and the first vertical plate 421. The lower end surface of the first top plate 423 is provided with an elastic top block 424. When the first clamping portion 42 fixes the tool 5, the bottom surface of the elastic top block 424 rests on the upper end surface of the tool 5; by providing the first top plate 423 and the elastic top block 424, a vertical squeezing force can be exerted on the tool 5 when fixing the tool 5, and the fixing effect is better with the lateral magnetic force; compared with directly installing the elastic block in the installation groove 31, the installation groove 31 has a small space and it is more inconvenient to punch a hole. After installing the elastic top block 424 on the first top plate 423, it is more convenient to install the entirety into the installation groove 31.

[0044] In this embodiment, a blind hole is formed on the lower end surface of the first top plate 423, and the elastic top block 424 can adopt a spring and a T-shaped block, the spring is installed in the blind hole, and the T-shaped block is invertedly installed on the spring; in other embodiments, the elastic top block 424 adopts a rubber block with a circular arc surface and is installed in the blind hole.

[0045] Among them, see Figure 3As shown, the second clamping portion 21 includes a second vertical plate 211, a second bottom plate 212 and a second top plate 213, the second bottom plate 212 and the second top plate 213 are fixedly connected to the second vertical plate 211, when the tool is changed, the opening formed by the second bottom plate 212 and the second top plate 213 faces the corresponding mounting groove 31; the lower end surface of the second top plate 213 is vertically provided with a second compression spring 214, and the lower end surface of the second compression spring 214 is provided with a tightening plate 215; see Figure 2 As shown, the tool 5 includes a handle 51, and chamfers are provided on both sides of the lower part of the handle 51, and a chamfer is provided on the upper side of the handle 51 close to the second vertical plate 211; when placing the knife, the upper end surface of the first bottom plate 422 is fitted with the lower end surface of the second bottom surface, and the handle 51 is lifted up to the second bottom plate 212. The lower end surface of the first top plate 423 is provided with an escape opening. During the lifting process of the handle 51, it passes through the escape opening until it contacts the second vertical plate 211; when taking the knife, the first bottom plate 422 is pushed between the second bottom plate 212 and the handle 51 by the pushing component 41, and then the tool 5 and the first clamping portion 42 are driven to move into the mounting groove 31 through the pushing component 41.

[0046] In this embodiment, when the knife is released, the electromagnet 411 is powered off. Due to the elastic force of the first compression spring 412, the first vertical plate 421 drives the knife handle 51 to move toward the second vertical plate 211. Since the first bottom plate 422 is located below the second bottom plate 212, the chamfered portion corresponding to the knife handle 51 contacts the second bottom plate 212 and the tightening plate 215. At this time, the knife handle 51 is located below the avoidance opening. The second bottom plate 212 lifts the knife handle 51, and the knife handle 51 is separated from the first bottom plate 422. The knife handle 51 continues to move under the push of the first vertical plate 421. It moves along the upper end surface of the second bottom plate 212 until it contacts the second vertical plate 211, and the tightening plate 215 presses the tool handle 51, completing the knife release. The electromagnet 411 is energized to reset the first clamping part 42. When taking the knife, the electromagnet 411 is de-energized, the first vertical plate 421 moves outward, and the first bottom plate 422 is located above the second bottom plate 212. Due to the chamfer on the tool handle 51, the first bottom plate 422 and the tool handle 51 are separated. After the electromagnet 411 is energized, the tool handle 51 and the second vertical plate 211 are adsorbed, the tool handle 51 is pulled out and reset, and the knife change is completed.

[0047] Among them, see Figure 6 and Figure 7As shown, a slanted block 216 is provided on one side of the tightening plate 215 close to the mounting groove 31, and the bottom surface of the slanted block 216 is lower than the lower end surface of the tightening plate 215. When the first bottom plate 422 is pushed between the second bottom plate 212 and the knife handle 51 by the pushing component 41, the first vertical plate 421 lifts the slanted block 216; when the first bottom plate 422 is pushed between the second bottom plate 212 and the knife handle 51 by the pushing component 41, the first vertical plate 421 lifts the slanted block 216. After the electromagnet 411 is energized, the knife handle 51 and the first vertical plate 421 move toward the inside of the mounting groove 31. At this time, the slanted block 216 moves to the upper end of the knife handle 51, and the contact area between the slanted block 216 and the knife handle 51 is small, and the friction force generated is small, thereby preventing the friction force from causing the tool 5 to be unable to separate from the second clamping portion 21.

[0048] The usage and principle of this embodiment are as follows:

[0049] The first spatial coordinate is set as the position coordinate of the first clamping part 42 for tool change, the second spatial coordinate is set as the position coordinate of the second clamping part 21 for tool placement, and the third spatial coordinate is set as the position coordinate of the second clamping part 21 for tool removal;

[0050] When the tool needs to be changed, the position of the tool disc 3 is adjusted by the moving mechanism, and the tool disc 3 rotates so that the corresponding first clamping portion 42 is at the first spatial coordinate, and the chain transmission mechanism 1 drives the second clamping portion 21 to move so that the corresponding second clamping portion 21 moves to the second spatial coordinate, such as Figure 3 When the knife is released, the electromagnet 411 is powered off, and due to the elastic force of the first compression spring 412, the first vertical plate 421 drives the knife handle 51 to move toward the second vertical plate 211. Since the first bottom plate 422 is located below the second bottom plate 212, the chamfered portion corresponding to the knife handle 51 contacts the second bottom plate 212 and the top plate 215, and at this time the knife handle 51 is located below the avoidance opening, the second bottom plate 212 lifts the knife handle 51, and the knife handle 51 is separated from the first bottom plate 422. Figure 4 and Figure 5 As shown; the handle 51 continues to move under the push of the first vertical plate 421, the handle 51 moves along the upper end surface of the second bottom plate 212 until it contacts the second vertical plate 211, and the top plate 215 presses the handle 51, as shown Figure 6 As shown, the electromagnet 411 is energized to reset the first clamping portion 42, completing the knife release;

[0051] When the knife is removed, the chain transmission mechanism 1 continues to drive the second clamping part 21 to move, so that the corresponding second clamping part 21 moves to the third spatial coordinate, the electromagnet 411 is powered off, the first vertical plate 421 moves outward, and the first bottom plate 422 is located above the second bottom plate 212. Due to the chamfer on the knife handle 51, the first bottom plate 422 and the knife handle 51 are separated, and the first vertical plate 421 lifts the inclined block 216. Figure 7As shown; after the electromagnet 411 is energized, the knife handle 51 and the second vertical plate 211 are adsorbed, and the knife handle 51 and the first vertical plate 421 move toward the inside of the installation groove 31. At this time, the inclined block 216 moves to the upper end of the knife handle 51. The contact area between the inclined block 216 and the knife handle 51 is small, and the friction force generated is small, so that the friction force can avoid the tool 5 from being unable to separate from the second clamping part 21. The knife handle 51 is pulled out and reset, and the elastic top block 424 presses the knife handle 51 tightly to complete the tool change;

[0052] Through the cooperation of the first clamping part 42, the second clamping part 21, the electromagnet 411, and the first compression spring 412, the tool change can be automatically completed during the processing process, without the need to stop the machine for manual tool change or replacement of the lathe, thereby improving production efficiency; and the automatic tool change action is completed only by the cooperation of the magnet, spring and structural shape, and the equipment cost is relatively low.

[0053] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A lathe turret structure, comprising a tool rest and a tool disc, wherein the tool disc is rotatable and moves along the X, Y, and Z axis directions through a moving mechanism, characterized in that: The tool holder is provided with a plurality of placement components, and the placement components are used to loosen or fix the tool. The tool disc is provided with a plurality of tool changing mechanisms in the circumference. After each tool changing mechanism is aligned with the corresponding placement component, the tool of the placement component can be removed and fixed, or the tool can be loosened and placed in the placement component. Each of the tool changing mechanisms comprises a pushing component and a first clamping part, a mounting groove is provided on the circumference of the tool disc, the first clamping part is slidably mounted in the mounting groove, each of the placement components comprises a second clamping part, the first clamping part and the second clamping part can both release or fix the tool; the pushing component can drive the first clamping part to move toward the corresponding second clamping part; The pushing assembly includes an electromagnet and a first compression spring, wherein the first compression spring is arranged between the first clamping portion and the inner side of the mounting groove along the sliding direction of the first clamping portion, and the electromagnet is installed inside the mounting groove and can adsorb the first clamping portion and the tool to move toward the inner side of the mounting groove; The first clamping portion includes a first vertical plate and a first bottom plate, the inner side of the first vertical plate is fixedly connected to the first compression spring, the first bottom plate is fixedly connected to the outer side of the first vertical plate and contacts the mounting groove, and the first bottom plate and the first vertical plate limit the tool; A first top plate is fixedly connected in the mounting groove, the first top plate limits the upper end surface of the tool and the first vertical plate, an elastic top block is provided on the lower end surface of the first top plate, and when the first clamping part fixes the tool, the bottom surface of the elastic top block presses against the upper end surface of the tool; The second clamping portion includes a second vertical plate, a second bottom plate and a second top plate, wherein the second bottom plate and the second top plate are fixedly connected to the second vertical plate, and when changing the tool, the opening formed by the second bottom plate and the second top plate faces the corresponding mounting groove; A second compression spring is vertically arranged on the lower end surface of the second top plate, and a tightening plate is arranged on the lower end surface of the second compression spring; The tool comprises a handle, both sides of the lower part of the handle are provided with chamfers, and the upper part of the handle is provided with a chamfer on one side close to the second vertical plate; When placing the knife, the upper end surface of the first bottom plate is in contact with the lower end surface of the second bottom plate, and the knife handle is lifted up to the second bottom plate. The lower end surface of the first top plate is provided with an escape opening. During the lifting process, the knife handle passes through the escape opening until it contacts the second vertical plate. When taking out the knife, the first bottom plate is pushed between the second bottom plate and the knife handle by the pushing component, and then the tool and the first clamping part are driven to move into the installation groove through the pushing component.

2. The lathe turret structure according to claim 1, characterized in that: A slanted block is provided on one side of the tightening plate close to the mounting groove, the bottom surface of the slanted block is lower than the lower end surface of the tightening plate, and when the first bottom plate is pushed between the second bottom plate and the knife handle by the pushing assembly, the first vertical plate lifts up the slanted block.

3. The lathe turret structure according to claim 1, characterized in that: The tool holder comprises a chain transmission mechanism, and a plurality of the placement components are arranged at intervals on the chain transmission mechanism and move along with the chain transmission mechanism.

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