阅读说明：本技术 一种无空行程的插床 (Slotting machine without idle stroke ) 是由 李滨滨 于 2021-08-26 设计创作，主要内容包括：本发明属于插床技术领域,尤其涉及一种无空行程的插床,它包括机身、滑动臂、刀架模块,其中滑动臂上下滑动安装在机身上,安装刀具的刀架模块安装在滑动臂的下侧,所述刀架模块是由主刀架和辅刀架两部分组成；本发明在主刀具回程的时候,即在第一安装臂上移时,第一安装臂会带动第一传动板上移,第一传动板上移带动第二齿板上移,第二齿板上移驱动传动齿轮旋转,传动齿轮旋转就会与第一齿板啮合,开始驱动第一齿板下移,第一齿板下移带动第二传动板下移,第二传动板下移带动第二安装臂下移,第二安装臂下移带动辅刀具下移,对工件进行插削,即主刀具在回程的时候辅刀具会进行插削,避免空行程的损失,提高的插削效率。(The invention belongs to the technical field of slotting machines, and particularly relates to a slotting machine without idle stroke, which comprises a machine body, a sliding arm and a tool rest module, wherein the sliding arm is vertically and slidably arranged on the machine body; when the main cutter returns, namely when the first mounting arm moves upwards, the first mounting arm can drive the first transmission plate to move upwards, the first transmission plate moves upwards to drive the second gear plate to move upwards, the second gear plate moves upwards to drive the transmission gear to rotate, the transmission gear rotates to be meshed with the first gear plate and starts to drive the first gear plate to move downwards, the first gear plate moves downwards to drive the second transmission plate to move downwards, the second transmission plate moves downwards to drive the second mounting arm to move downwards, and the second mounting arm moves downwards to drive the auxiliary cutter to move downwards to perform slotting on a workpiece, namely the auxiliary cutter can perform slotting when the main cutter returns, so that idle stroke loss is avoided, and slotting efficiency is improved.)

1. The utility model provides a slotting machine of no idle stroke, it includes fuselage, slide arm, knife rest module, wherein the slide arm slidable mounting is on the fuselage from top to bottom, and the knife rest module of installation cutter is installed in the downside of slide arm, its characterized in that: the tool rest module consists of a main tool rest and an auxiliary tool rest;

the main tool rest comprises a first mounting arm, a mounting lug, a sliding sleeve and a tool mounting frame, wherein the first mounting arm is slidably mounted on the sliding arm, and an adjusting driving module for driving the first mounting arm to slide up and down is mounted on the upper side of the first mounting arm; the side wall surface at the lower end of the first mounting arm is fixedly provided with a mounting lug and a sliding sleeve, the upper end of the cutter mounting frame is mounted on the mounting lug through a hinge joint, and the lower end of the cutter mounting frame is in sliding fit with the sliding sleeve;

a main cutter is detachably mounted on the cutter mounting rack mounted on the main cutter frame;

the auxiliary tool rest comprises a second mounting arm, a mounting lug, a sliding sleeve, a tool mounting rack, a connecting slide block, a first swing rod, a mounting slide block, a second swing rod, a self-locking block, a plate spring, a friction block, a self-locking transmission rod, a first spring and a second spring, wherein the second mounting arm is slidably mounted on the sliding arm, a third spring is mounted between the upper side of the second mounting arm and the sliding arm, and the third spring is an extension spring; the side wall surface at the lower end of the second mounting arm is fixedly provided with a mounting support lug, the upper end of the cutter mounting frame is mounted on the mounting support lug in a hinged mode, the connecting sliding block is transversely mounted on the second mounting arm in a sliding mode, one end, located on the outer side of the second mounting arm, of the connecting sliding block is provided with a sliding sleeve, the sliding sleeve is in sliding fit with the cutter mounting frame, and the sliding sleeve is hinged with the connecting sliding block; the two mounting sliding blocks are vertically symmetrically and vertically slidably mounted on the second mounting arm, one ends of the two mounting sliding blocks are symmetrically hinged with two first swing rods, and the other ends of the two first swing rods are hinged with the connecting sliding block; the other ends of the two mounting sliding blocks are symmetrically hinged with two second swing rods; the self-locking rod is transversely installed in the second installation arm in a sliding manner and is hinged with the other ends of the two second swing rods; a second spring is arranged between the self-locking rod and the second mounting arm, and the second spring is an extension spring and has pretension; one end of the self-locking rod, which is far away from the second swing rod, is provided with a self-locking inclined surface, the self-locking block is arranged in the second sliding arm in a vertically sliding manner, and a first spring is arranged between the self-locking block and the second sliding arm and is a compression spring; the self-locking block is provided with a self-locking inclined surface matched with the self-locking rod; a friction block is transversely and slidably arranged on the self-locking block, a plate spring for resetting the friction block is arranged between the friction block and the self-locking block, and the friction block is in friction fit with the sliding arm;

an auxiliary cutter is detachably mounted on the cutter mounting frame mounted on the auxiliary cutter frame;

the first mounting arm and the second mounting arm are in transmission connection through a gear and a toothed plate, when the main tool rest and the auxiliary tool rest are at the same height, the two second swing rods are in a vertical state, and the self-locking rod is in contact extrusion fit with the lower end of the self-locking block; an included angle is formed between the two first swing rods; the toothed plate arranged on the first mounting arm is not meshed with the gear, and the toothed plate arranged on the second mounting arm is meshed with the gear; the installation slider is kept away from one side contact cooperation of auto-lock piece with the second mounting groove.

2. The non-lost motion slotting machine according to claim 1, wherein: and a friction plate which is in friction fit with the friction block is fixedly arranged on the sliding arm.

3. The non-lost motion slotting machine according to claim 1, wherein: the sliding arm is provided with two mounting chutes for the first mounting arm and the second mounting arm to be mounted in a sliding manner, the side surfaces of the two mounting chutes are symmetrically provided with two guide chutes, and a first mounting groove is formed between the two mounting chutes;

two first guide sliding blocks are symmetrically arranged on two sides of the first installation arm, and the first installation arm is installed in the corresponding installation sliding groove through the sliding fit of the two first guide sliding blocks and the two guide sliding grooves formed in the corresponding installation sliding groove; two second guide sliding blocks are symmetrically arranged on two sides of the second mounting arm, and the second mounting arm is mounted in the corresponding mounting sliding groove through the sliding fit of the two second guide sliding blocks and the two guide sliding grooves formed in the corresponding mounting sliding groove;

a first transmission plate is fixedly arranged on one side of the first mounting arm, and a second toothed plate is arranged on the first transmission plate; a second transmission plate is fixedly arranged on one side of the second mounting arm, and a first toothed plate is arranged on the second transmission plate; first driving plate and second driving plate all are located first mounting groove, and drive gear rotation installs in first mounting groove, first pinion rack, second pinion rack and the cooperation of transmission gear.

4. The non-lost motion slotting machine according to claim 1, wherein: the second mounting arm is provided with a second mounting groove for mounting the connecting slide block, the mounting slide block, the first swing rod and the second swing rod, and the second mounting arm is provided with a third mounting groove for mounting the self-locking block in a sliding manner and a fourth mounting groove for mounting the friction block in a sliding manner.

5. The non-lost motion slotting machine according to claim 1, wherein: the included angle between the self-locking inclined surface on the self-locking rod and the bottom surface of the self-locking rod is 70 degrees; the included angle between the self-locking inclined plane on the self-locking block and the bottom surface of the self-locking block is 70 degrees.

Technical Field

The invention belongs to the technical field of slotting machines, and particularly relates to a slotting machine without idle stroke.

Background

The slotting machine is a metal cutting machine used for processing groove-like features. When in machining, the workpiece on the workbench does longitudinal, transverse or rotary motion, and the slotting tool does up-and-down reciprocating motion to cut the workpiece. The slotting machine is used for slotting planes, forming surfaces, key grooves and the like, can be used for inserting working objects such as molds with the inclination within the range of 10 degrees, and is suitable for enterprises with single or small-batch production.

However, the tool rest of the conventional slotting machine is not provided with a tool lifting mechanism, and the worktable is also not provided with a tool relieving mechanism, so that the slotting tool generates friction with a workpiece during return stroke, and the work adjustment is poor. In addition, for the through groove, even if the cutter is changed to enable the cutter to be provided with upper and lower side edges, the lower edge is utilized during downward slotting, and during upward slotting, the cutter firstly penetrates through a hole and then cuts upward; however, for the blind groove, the cutting utilization of idle stroke cannot be realized even if the type is changed, and as for slotting and planing, idle stroke loss exists during slotting, so that slotting efficiency is low, and the blind groove can only be used for enterprises with single or small-batch production.

The invention designs an slotting machine without idle stroke to solve the problems.

Disclosure of Invention

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a slotting machine of no idle stroke, it includes fuselage, slide arm, knife rest module, and wherein the slide arm is the slidable mounting from top to bottom on the fuselage, and the knife rest module of installation cutter is installed in the downside of slide arm, the knife rest module comprises main knife rest and auxiliary tool rest two parts.

The main tool rest comprises a first mounting arm, a mounting lug, a sliding sleeve and a tool mounting frame, wherein the first mounting arm is slidably mounted on the sliding arm, and an adjusting driving module for driving the first mounting arm to slide up and down is mounted on the upper side of the first mounting arm; the side wall face of the lower end of the first mounting arm is fixedly provided with a mounting support lug and a sliding sleeve, the upper end of the cutter mounting frame is mounted on the mounting support lug through a hinge, and the lower end of the cutter mounting frame is in sliding fit with the sliding sleeve.

And a main cutter is detachably mounted on the cutter mounting frame mounted on the main cutter frame.

The auxiliary tool rest comprises a second mounting arm, a mounting lug, a sliding sleeve, a tool mounting rack, a connecting slide block, a first swing rod, a mounting slide block, a second swing rod, a self-locking block, a plate spring, a friction block, a self-locking transmission rod, a first spring and a second spring, wherein the second mounting arm is slidably mounted on the sliding arm, a third spring is mounted between the upper side of the second mounting arm and the sliding arm, and the third spring is an extension spring; the side wall surface at the lower end of the second mounting arm is fixedly provided with a mounting support lug, the upper end of the cutter mounting frame is mounted on the mounting support lug in a hinged mode, the connecting sliding block is transversely mounted on the second mounting arm in a sliding mode, one end, located on the outer side of the second mounting arm, of the connecting sliding block is provided with a sliding sleeve, the sliding sleeve is in sliding fit with the cutter mounting frame, and the sliding sleeve is hinged with the connecting sliding block; the two mounting sliding blocks are vertically symmetrically and vertically slidably mounted on the second mounting arm, one ends of the two mounting sliding blocks are symmetrically hinged with two first swing rods, and the other ends of the two first swing rods are hinged with the connecting sliding block; the other ends of the two mounting sliding blocks are symmetrically hinged with two second swing rods; the self-locking rod is transversely installed in the second installation arm in a sliding manner and is hinged with the other ends of the two second swing rods; a second spring is arranged between the self-locking rod and the second mounting arm, and the second spring is an extension spring and has pretension; one end of the self-locking rod, which is far away from the second swing rod, is provided with a self-locking inclined surface, the self-locking block is arranged in the second sliding arm in a vertically sliding manner, and a first spring is arranged between the self-locking block and the second sliding arm and is a compression spring; the self-locking block is provided with a self-locking inclined surface matched with the self-locking rod; the self-locking block is provided with a friction block in a transverse sliding mode, a plate spring of the reset friction block is arranged between the friction block and the self-locking block, and the friction block is in friction fit with the sliding arm.

And an auxiliary cutter is detachably mounted on the cutter mounting frame mounted on the auxiliary cutter frame.

The first mounting arm and the second mounting arm are in transmission connection through a gear and a toothed plate, when the main tool rest and the auxiliary tool rest are at the same height, the two second swing rods are in a vertical state, and the self-locking rod is in contact extrusion fit with the lower end of the self-locking block; an included angle is formed between the two first swing rods; the toothed plate arranged on the first mounting arm is not meshed with the gear, and the toothed plate arranged on the second mounting arm is meshed with the gear; the installation slider is kept away from one side contact cooperation of auto-lock piece with the second mounting groove.

Preferably, a friction plate for friction fit with the friction block is fixedly mounted on the sliding arm.

Preferably, the sliding arm is provided with two sliding chutes for the first mounting arm and the second mounting arm to be slidably mounted on, the two side surfaces of the two mounting chutes are symmetrically provided with two guide chutes, and a first mounting groove is formed between the two mounting chutes.

Two first guide sliding blocks are symmetrically arranged on two sides of the first installation arm, and the first installation arm is installed in the corresponding installation sliding groove through the sliding fit of the two first guide sliding blocks and the two guide sliding grooves formed in the corresponding installation sliding groove; two second guide sliding blocks are symmetrically arranged on two sides of the second installation arm, and the second installation arm is installed in the corresponding installation sliding groove through the sliding fit of the two second guide sliding blocks and the two guide sliding grooves formed in the corresponding installation sliding groove.

A first transmission plate is fixedly arranged on one side of the first mounting arm, and a second toothed plate is arranged on the first transmission plate; a second transmission plate is fixedly arranged on one side of the second mounting arm, and a first toothed plate is arranged on the second transmission plate; first driving plate and second driving plate all are located first mounting groove, and drive gear rotation installs in first mounting groove, first pinion rack, second pinion rack and the cooperation of transmission gear.

Preferably, the second mounting arm is provided with a second mounting groove for mounting the connecting slide block, the mounting slide block, the first swing rod and the second swing rod, and the second mounting arm is provided with a third mounting groove for slidably mounting the self-locking block and a fourth mounting groove for slidably mounting the friction block.

As a preferable scheme, an included angle between a self-locking inclined surface on the self-locking rod and the bottom surface of the self-locking rod is 70 degrees; the included angle between the self-locking inclined plane on the self-locking block and the bottom surface of the self-locking block is 70 degrees.

Compared with the prior art, the invention has the advantages that:

1. when the auxiliary tool is inserted and cut downwards, the second mounting arm is stressed to move downwards, the friction block is subjected to an upward reverse driving force of the friction plate, so that the friction block is subjected to an upward driving force, the friction block can transmit the driving force to the self-locking rod, the self-locking rod is prevented from moving towards one side of the self-locking block under the action of the second spring, namely, in the state, the self-locking rod is kept in a static self-locking state, the two second swing rods are vertical, and the connecting sliding block is static, so that the auxiliary tool arranged on the tool mounting frame is kept in a vertical state all the time in the downward moving and inserting and cutting process, and the normal inserting and cutting cannot be influenced due to the inclination of an external force.

2. When the second mounting arm is stressed to move upwards in a return stroke, the friction block can be subjected to a downward reverse driving force of the friction plate, so that the friction block moves downwards, the self-locking block moves downwards to lose extrusion on the self-locking rod, the self-locking rod slides towards one side of the self-locking block under the action of the third spring at the moment, in this state, the two second swing rods are driven by the self-locking rod to swing, the two mounting slide blocks slide towards the middle, the two first swing rods swing, the connecting slide block slides towards one side of the self-locking block, the connecting slide block drives the sliding sleeve to move, an auxiliary cutter mounted on the cutter mounting frame swings towards one side of the self-locking block under the driving of the sliding sleeve, a gap is formed between the auxiliary cutter and the slotting surface, and the auxiliary slotting cutter is prevented from rubbing against a workpiece in the return stroke process to abrade the cutter and the workpiece.

3. When the main cutter returns, namely when the first mounting arm moves upwards, the first mounting arm can drive the first transmission plate to move upwards, the first transmission plate moves upwards to drive the second gear plate to move upwards, the second gear plate moves upwards to drive the transmission gear to rotate, the transmission gear rotates to be meshed with the first gear plate and starts to drive the first gear plate to move downwards, the first gear plate moves downwards to drive the second transmission plate to move downwards, the second transmission plate moves downwards to drive the second mounting arm to move downwards, and the second mounting arm moves downwards to drive the auxiliary cutter to move downwards to perform slotting on a workpiece, namely the auxiliary cutter can perform slotting when the main cutter returns, so that idle stroke loss is avoided, and slotting efficiency is improved.

Drawings

Fig. 1 is an external view of an entire part.

FIG. 2 is a schematic view of a tool holder module installation.

Fig. 3 is a schematic view of the structure of the slide arm.

FIG. 4 is a schematic view of a tool holder module configuration.

Fig. 5 is a schematic view of the first and second drive plates driving.

Fig. 6 is a schematic view of the main tool holder structure.

Fig. 7 is a schematic view of the structure of the auxiliary tool rest.

Fig. 8 is a schematic view of a second mounting arm configuration.

Fig. 9 is a schematic view of the internal mounting structure of the second mounting arm.

Number designation in the figures: 1. a body; 2. a slide arm; 3. a tool holder module; 4. adjusting the driving module; 5. an auxiliary tool rest; 6. a main tool rest; 7. a friction plate; 8. a first mounting groove; 9. a guide chute; 10. installing a chute; 11. a first drive plate; 12. a second drive plate; 13. a transmission gear; 14. a first toothed plate; 15. a second toothed plate; 16. a first guide slider; 17. a first mounting arm; 18. mounting a support lug; 19. a sliding sleeve; 20. a tool mounting bracket; 21. a main cutter; 22. a second mounting arm; 23. auxiliary tools; 24. a second guide slider; 25. a second mounting groove; 26. a fourth mounting groove; 27. a third mounting groove; 28. connecting the sliding block; 29. a first swing link; 30. installing a sliding block; 31. a second swing link; 32. a self-locking block; 33. a plate spring; 34. a friction block; 35. a self-locking transmission rod; 36. a first spring; 37. a second spring; 38. and a third spring.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must be of a particular length, orientation, configuration and operation in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, it comprises a machine body 1, a sliding arm 2 and a tool rest module 3, wherein the sliding arm 2 is mounted on the machine body 1 in a vertical sliding manner, the tool rest module 3 for mounting tools is mounted on the lower side of the sliding arm 2, and as shown in fig. 2 and 4, the tool rest module 3 is composed of a main tool rest 6 and an auxiliary tool rest 5.

The machine body 1 involved in the present invention comprises all the parts of a conventional slotting machine except for the tool holder and the sliding arm 2, which are prior art. The main part of the sliding arm 2 is to provide the lifting function for the carriage module 3.

As shown in fig. 6, the main tool post 6 includes a first mounting arm 17, a mounting lug 18, a sliding sleeve 19, and a tool mounting bracket 20, wherein the first mounting arm 17 is slidably mounted on the sliding arm 2, and an adjustment driving module 4 for driving the first mounting arm 17 to slide up and down is mounted on the upper side of the first mounting arm 17; the side wall surface of the lower end of the first mounting arm 17 is fixedly provided with a mounting support lug 18 and a sliding sleeve 19, the upper end of the cutter mounting rack 20 is mounted on the mounting support lug 18 through a hinge joint, and the lower end of the cutter mounting rack 20 is in sliding fit with the sliding sleeve 19.

As shown in fig. 6, the tool mounting bracket 20 mounted on the main tool post 6 is detachably mounted with a main tool 21.

As shown in fig. 7, the auxiliary tool post 5 includes a second mounting arm 22, a mounting lug 18, a sliding sleeve 19, a tool mounting bracket 20, a connecting slider 28, a first swing link 29, a mounting slider 30, a second swing link 31, a self-locking block 32, a leaf spring 33, a friction block 34, a self-locking transmission rod 35, a first spring 36, and a second spring 37, wherein the second mounting arm 22 is slidably mounted on the sliding arm 2, a third spring 38 is mounted between the upper side of the second mounting arm 22 and the sliding arm 2, and the third spring 38 is an extension spring; the side wall surface at the lower end of the second mounting arm 22 is fixedly provided with a mounting support lug 18, the upper end of the cutter mounting bracket 20 is mounted on the mounting support lug 18 in a hinged manner, a connecting slide block 28 is transversely and slidably mounted on the second mounting arm 22, one end of the connecting slide block 28, which is positioned at the outer side of the second mounting arm 22, is provided with a sliding sleeve 19, the sliding sleeve 19 is in sliding fit with the cutter mounting bracket 20, and the sliding sleeve 19 is hinged with the connecting slide block 28; as shown in fig. 9, two installation sliders 30 are vertically and symmetrically installed on the second installation arm 22 in a vertically sliding manner, two first swing rods 29 are symmetrically and hingedly installed at one ends of the two installation sliders 30, and the other ends of the two first swing rods 29 are hingedly installed on the connection slider 28; the other ends of the two mounting sliding blocks 30 are symmetrically hinged with two second swing rods 31; the self-locking rod is transversely installed in the second installation arm 22 in a sliding manner and is hinged with the other ends of the two second swing rods 31; a second spring 37 is arranged between the self-locking rod and the second mounting arm 22, and the second spring 37 is an extension spring and has pretension; one end of the self-locking rod, which is far away from the second swing rod 31, is provided with a self-locking inclined surface, the self-locking block 32 is installed in the second sliding arm 2 in a vertically sliding manner, a first spring 36 is installed between the self-locking block 32 and the second sliding arm 2, and the first spring 36 is a compression spring; the self-locking block 32 is provided with a self-locking inclined surface matched with the self-locking rod; a friction block 34 is transversely and slidably arranged on the self-locking block 32, a plate spring 33 of the reset friction block 34 is arranged between the friction block 34 and the self-locking block 32, and the friction block 34 is in friction fit with the sliding arm 2.

When the second mounting arm 22 is forced to move downwards, the second mounting arm 22 drives the mounting lug 18, the sliding sleeve 19, the tool mounting bracket 20, the connecting slide block 28, the first swing link 29, the mounting slide block 30, the second swing link 31, the self-locking block 32, the friction block 34 and the self-locking transmission rod 35 mounted thereon to move downwards together, the friction block 34 receives an upward reverse driving force from the friction plate 7 during the moving process, so that the friction block 34 receives an upward driving force, the friction block 34 transmits the driving force to the self-locking block 32, so that the self-locking block 32 receives an upward driving force, the self-locking block 32 performs a limit function on the self-locking lever through the extrusion fit of the self-locking inclined surface on the self-locking lever and the self-locking inclined surface on the self-locking lever, the self-locking lever is prevented from moving towards one side of the self-locking block 32 under the action of the second spring 37, namely, the self-locking lever is kept in a static self-locking state in this state, the two second swing rods 31 are vertical, the connecting slide block 28 is static, and therefore it is guaranteed that the auxiliary cutter 23 installed on the cutter installation frame 20 is limited by the second installation groove 25 and cannot slide even if the connecting slide block 28 slides towards one side far away from the self-locking block 32 under the action of stress in the downward moving and slotting process, and on the other hand, the auxiliary cutter cannot slide towards one side of the self-locking block 32 due to the self-locking function of the self-locking block 32 and the self-locking rod, so that the vertical state is always kept, and the normal slotting is not influenced due to the inclination of external force.

When the second mounting arm 22 is forced to move upwards, the second mounting arm 22 drives the mounting lug 18, the sliding sleeve 19, the tool mounting bracket 20, the connecting slider 28, the first swing link 29, the mounting slider 30, the second swing link 31, the self-locking block 32, the friction block 34 and the self-locking transmission rod 35 mounted thereon to move upwards together, the friction block 34 is driven by a downward reverse driving force of the friction plate 7 in the moving process, so that the friction block 34 moves downwards by the downward driving force, the friction block 34 moves downwards to drive the self-locking block 32 to move downwards, the self-locking block 32 moves downwards to lose the extrusion on the self-locking rod, at the moment, the self-locking rod slides towards one side of the self-locking block 32 under the action of the third spring 38, in this state, the two second swing links 31 are driven by the self-locking rods to swing, the two mounting sliders 30 slide towards the middle, the two first swing links 29 swing, the connecting slider 28 slides towards one side of the self-locking block 32, the connecting sliding block 28 drives the sliding sleeve 19 to move, and the auxiliary cutter 23 arranged on the cutter mounting frame 20 swings towards one side of the self-locking block 32 under the driving of the sliding sleeve 19, so that a gap is formed between the auxiliary cutter and a slotting surface, and the slotting cutter is prevented from rubbing against a workpiece in the return stroke process to wear the cutter and the workpiece.

As shown in fig. 7, the tool mounting bracket 20 mounted on the auxiliary tool rest 5 is detachably mounted with an auxiliary tool 23.

As shown in fig. 5, the first mounting arm 17 and the second mounting arm 22 are in transmission connection through a gear and a toothed plate, when the main tool rest 6 and the auxiliary tool rest 5 are at the same height, the two second swing rods 31 are in a vertical state, and the self-locking lever is in contact press fit with the lower end of the self-locking block 32; an included angle is formed between the two first swing rods 29; the toothed plate mounted on the first mounting arm 17 is not meshed with the gear, and the toothed plate on the second mounting arm 22 is meshed with the gear; the mounting slider 30 is in contact engagement with the second mounting groove 25 on a side thereof remote from the self-locking piece 32.

As shown in fig. 3, a friction plate 7 for friction-fitting with a friction block 34 is fixedly mounted on the slide arm 2.

As shown in fig. 3, the sliding arm 2 is provided with two mounting arms 17 and 22 for slidably mounting the first mounting arm and the second mounting arm on the mounting sliding grooves 10, the two mounting sliding grooves 10 are symmetrically provided with two guide sliding grooves 9 on the side surfaces, and a first mounting groove 8 is provided between the two mounting sliding grooves 10.

As shown in fig. 6, two first guide sliders 16 are symmetrically installed on two sides of the first installation arm 17, and the first installation arm 17 is installed in the corresponding installation chute 10 through the sliding fit between the two first guide sliders 16 and the two guide chutes 9 opened in the corresponding installation chute 10; as shown in fig. 8, two second guiding sliders 24 are symmetrically installed on both sides of the second installation arm 22, and the second installation arm 22 is installed in the corresponding installation chute 10 by the sliding fit between the two second guiding sliders 24 and the two guiding chutes 9 opened in the corresponding installation chute 10.

As shown in fig. 4 and 5, a first transmission plate 11 is fixedly mounted on one side of the first mounting arm 17, and the first transmission plate 11 is provided with a second toothed plate 15; a second transmission plate 12 is fixedly mounted on one side of the second mounting arm 22, and a first toothed plate 14 is arranged on the second transmission plate 12; the first transmission plate 11 and the second transmission plate 12 are both located in the first installation groove 8, the transmission gear 13 is rotatably installed in the first installation groove 8, and the first toothed plate 14 and the second toothed plate 15 are matched with the transmission gear.

As shown in fig. 8, the second mounting arm 22 is provided with a second mounting groove 25 for mounting the connecting slider 28, the mounting slider 30, the first swing link 29 and the second swing link 31, and the second mounting arm 22 is provided with a third mounting groove 27 for slidably mounting the self-locking block 32 and a fourth mounting groove 26 for slidably mounting the friction block 34.

The included angle between the self-locking inclined surface on the self-locking rod and the bottom surface of the self-locking rod is 70 degrees; the included angle between the self-locking inclined surface on the self-locking block 32 and the bottom surface of the self-locking block 32 is 70 degrees. Has better self-locking effect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

The implementation mode is as follows: when the slotting machine designed by the invention is used, after the heights of a high cutter and a workpiece are adjusted through the sliding arm 2, the first mounting arm 17 is controlled to move downwards through the adjusting driving module 4, the first mounting arm 17 moves downwards to drive the first transmission plate 11 to move downwards, the first transmission plate 11 moves downwards to drive the second toothed plate 15 on the first transmission plate to move downwards, the second toothed plate 15 is not meshed with the transmission gear 13 at the beginning of moving downwards, the first toothed plate 14 is meshed with the transmission gear 13, after the second toothed plate 15 is meshed with the transmission gear 13, the second toothed plate 15 moves downwards to drive the transmission gear 13 to rotate, the transmission gear 13 rotates to drive the first toothed plate 14 to move upwards, the first toothed plate 14 moves upwards to drive the second transmission plate 12 to move upwards, but because the first toothed plate 14 and the transmission gear 13 are in the initial state, the first toothed plate 14 can be separated from the transmission gear 13 once moving upwards, namely, during the downward movement of the second toothed plate 15, the first toothed plate 14 and the transmission gear 13 are in a critical state of engagement and disengagement; the first mounting arm 17 moves downwards to drive the main cutter 21 to move downwards for slotting; after the main cutter 21 finishes slotting, the workpiece is controlled to move through the transverse moving driving mechanism on the machine body 1, so that the auxiliary cutter 23 is matched with the slotting surface of the workpiece to a proper slotting amount, a gap is formed between the main cutter 21 and the slotting surface of the workpiece, then the first mounting arm 17 is controlled to move upwards, the first mounting arm 17 moves upwards to drive the main cutter 21 to move upwards, at the moment, the main cutter 21 and the workpiece cannot be abraded due to the gap formed between the main cutter 21 and the slotting surface of the workpiece, when the first mounting arm 17 moves upwards, the first mounting arm 17 drives the first transmission plate 11 to move upwards, the first transmission plate 11 moves upwards to drive the second gear plate 15 to move upwards, the second gear plate 15 moves upwards to drive the transmission gear 13 to rotate, the transmission gear 13 rotates to be meshed with the first gear plate 14 to start to drive the first gear plate 14 to move downwards, the first transmission plate 14 moves downwards to drive the second transmission plate 12 to move downwards, and the second transmission plate 12 moves downwards to drive the second mounting arm 22 to move downwards, the second mounting arm 22 moves downwards to drive the auxiliary cutter 23 to move downwards to perform slotting, namely, the auxiliary cutter 23 performs slotting when the main cutter 21 returns, so that loss of idle stroke is avoided, and slotting efficiency is improved.

When the auxiliary tool 23 finishes slotting, the first mounting arm 17 also moves to the initial position, the second gear plate 15 is disengaged from the transmission gear 13, at this time, the second mounting arm 22 is reset upwards under the action of the third spring 38, the second mounting arm 22 drives the mounting lug 18, the sliding sleeve 19, the tool mounting rack 20, the connecting slide block 28, the first swing rod 29, the mounting slide block 30, the second swing rod 31, the self-locking block 32, the friction block 34 and the self-locking transmission rod 35 which are mounted on the second mounting arm 22 to move upwards together, the friction block 34 is driven by a downward reverse driving force of the friction plate 7 in the moving process, so that the friction block 34 is driven downwards by the downward driving force, the friction block 34 is driven downwards to drive the self-locking block 32 to move downwards, the self-locking block 32 is moved downwards to lose the extrusion on the self-locking rod, at this time, the self-locking rod slides towards one side of the self-locking block 32 under the action of the third spring 38, and in this state, the two second swing rods 31 are driven by the self-locking rod, the two mounting sliding blocks 30 slide towards the middle, the two first swing rods 29 swing, the connecting sliding block 28 slides towards one side of the self-locking block 32, the connecting sliding block 28 drives the sliding sleeve 19 to move, the auxiliary cutter 23 mounted on the cutter mounting frame 20 swings towards one side of the self-locking block 32 under the driving of the sliding sleeve 19, a gap is formed between the auxiliary cutter and the slotting surface, and the slotting cutter is prevented from rubbing against a workpiece in the return stroke process to wear the cutter and the workpiece.