Oscillating cutter device of spring machine

Abstract

The present invention discloses a swing-type cutting tool device for a spring machine, aiming to provide a spring machine swing-type cutting tool device that can reduce the distance between the cutting tool and the mandrel without affecting the processing of variable-diameter springs, so as to save the reciprocating time of the cutting tool up and down, improve the spring production efficiency, and have a reasonable layout; at the same time, it can effectively avoid the interference problem between the variable-diameter spring and the cutting tool due to the increase in the outer diameter of the spring during the processing of the variable-diameter spring. It includes: a fixed tool holder, which is fixed on the processing panel, and the fixed tool holder is provided with a radial channel extending along the radial direction of the mandrel; a floating slider, which is slidably arranged in the radial channel, the floating slider can move along the radial direction of the mandrel, and the floating slider can also move along the axial direction of the mandrel; a cutting tool, which is fixed on the floating slider; a swing driving device, which is arranged on the processing panel and used to drive the floating slider to move in the radial channel.

Description

Technical Field

[0001] The present invention relates to a spring machine, and more particularly to a swing cutting tool device for a spring machine. Background Art

[0002] Currently, a spring machine generally includes a processing panel, a mandrel disposed on the processing panel, a top spring cutter for curling a spring, and a cutting tool for shearing the spring. There are generally multiple top spring cutters, and the top spring cutters and the cutting tool are circumferentially distributed around the mandrel (the cutting tool is generally located above the mandrel). Therefore, the space on the processing panel of the current spring machine in the circumferential direction of the mandrel is generally relatively compact. The cutting tool of the current spring machine generally only moves up and down. After the spring is processed and formed, the cutting tool moves downwards close to the mandrel to cut the spring; then the cutting tool moves upwards to reset (the cutting point of the spring of the spring machine and the cutting tool are distributed on the same axial section of the mandrel); and during the process of processing a variable-diameter spring, the outer diameter of the spring will change (for example, during the processing of a pagoda spring, the outer diameter of the spring is first large and then small, and the position where the spring cutting point is located is the minimum outer diameter of the pagoda spring. The outer diameter of the spring at the position where the cutting point of the processed variable-diameter spring is located is generally at the smaller part of the outer diameter of the variable-diameter spring). Therefore, during the process of processing a variable-diameter spring, the distance between the cutting tool and the axis of the mandrel should be greater than the maximum outer diameter of the variable-diameter spring, otherwise the variable-diameter spring will interfere with the cutting tool during the processing, affecting the normal processing of the variable-diameter spring; thus, the space occupied by the cutting tool of the spring machine is increased, making the already compact processing panel of the spring machine more crowded and not conducive to the arrangement of the cutting tool. Summary of the Invention

[0003] The object of the present invention is to provide a swing cutting tool device for a spring machine that can reduce the distance between the cutting tool and the mandrel without affecting the processing of variable-diameter springs, which is conducive to the arrangement of the cutting tool; and is conducive to saving the reciprocating time of the cutting tool up and down to improve the spring production efficiency; and can also effectively avoid the interference problem between the variable-diameter spring and the cutting tool due to the increase in the outer diameter of the spring during the processing of the variable-diameter spring.

[0004] The technical solution of the present invention is as follows:

[0005] A swing cutting tool device for a spring machine, the swing cutting tool device is installed on the processing panel of the spring machine, and a mandrel and a top spring cutter of the spring machine are also installed on the processing panel. The swing cutting tool device includes:

[0006] A fixed tool holder, the fixed tool holder is fixed on the processing panel, the fixed tool holder and the top spring cutter are on the same side of the processing panel, and the fixed tool holder is provided with a radial channel extending along the radial direction of the mandrel, and the radial channel penetrates through the fixed tool holder;

[0007] A floating slider is slidably arranged in the radial channel. The floating slider can move radially along the mandrel and can also move axially along the mandrel.

[0008] A cutting tool is fixed on the floating slider, and the cutting edge of the cutting tool faces the mandrel.

[0009] A swing drive device is arranged on the processing panel to drive the floating slider to move in the radial channel. During the process that the swing drive device drives the floating slider and the cutting tool to move radially away from the mandrel along the mandrel, the cutting tool will also move axially closer to the processing panel along the mandrel, so that the cutting tool and the top spring tool are staggeredly distributed axially along the mandrel. During the process that the swing drive device drives the floating slider and the cutting tool to move radially closer to the mandrel along the mandrel, the cutting tool will also move axially away from the processing panel along the mandrel until the cutting tool and the top spring tool are distributed on the same axial section of the mandrel. After that, the cutting tool continues to move radially closer to the mandrel along the mandrel to cut the spring. In this way, through the axial movement of the cutting tool along the mandrel, during the process of machining the variable-diameter spring, the cutting tool and the top spring tool will be staggeredly distributed axially along the mandrel, that is, the cutting tool and the machined variable-diameter spring will be staggeredly distributed axially along the mandrel. Therefore, during the process of machining the variable-diameter spring, even if the distance between the cutting edge of the cutting tool and the axis of the mandrel (the distance in the radial direction of the mandrel) is less than the maximum outer diameter of the variable-diameter spring, the cutting tool will not interfere with the variable-diameter spring (effectively avoiding the interference problem between the cutting tool and the variable-diameter spring due to the increase of the spring outer diameter during the machining process of the variable-diameter spring); thus, without affecting the machining of the variable-diameter spring, the distance between the cutting tool and the mandrel can be reduced to facilitate the arrangement of the cutting tool. At the same time, since the distance between the cutting tool and the mandrel can be reduced, in this way, the reciprocating time of the cutting tool up and down can also be saved to improve the spring production efficiency.

[0010] Preferably, the swing drive device includes a crankshaft rotatably arranged on the processing panel, a motor for driving the crankshaft to rotate, a connecting rod connecting the connecting rod journal of the crankshaft and the floating slider, a track guide groove arranged on the floating slider, and a guide rod fixedly arranged on the fixed tool holder for cooperating with the track guide groove. The track guide groove includes an outer radial groove section, an inclined groove section, and an inner radial groove section sequentially distributed radially along the mandrel. The outer radial groove section is located between the mandrel and the inner radial groove section. Both the outer radial groove section and the inner radial groove section are distributed radially along the mandrel, and the distance between the outer radial groove section and the processing panel is greater than the distance between the inner radial groove section and the processing panel. The inclined groove section connects the outer radial groove section and the inner radial groove section, and the guide rod is inserted into the track guide groove.

[0011] The motor drives the crankshaft to rotate. The crankshaft drives the floating slider and the cutting tool to approach or move away from the mandrel along the radial direction of the mandrel through the connecting rod. During the process that the floating slider and the cutting tool approach the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove to make the cutting tool move axially along the mandrel away from the processing panel. During the process that the floating slider and the cutting tool move away from the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove to make the cutting tool move axially along the mandrel towards the processing panel. In this way, only through the same power component "motor", it can be realized that "during the process that the floating slider and the cutting tool approach the mandrel along the radial direction of the mandrel, the cutting tool moves axially along the mandrel away from the processing panel, so that the cutting tool and the top spring tool are distributed on the same axial section of the mandrel, thus enabling the cutting tool to smoothly cut the formed tapered spring during processing"; at the same time, "during the process that the floating slider and the cutting tool move away from the mandrel along the radial direction of the mandrel, the cutting tool moves axially along the mandrel towards the processing panel, so that the cutting tool and the top spring tool are staggeredly distributed axially on the mandrel, so as to realize that without affecting the processing of the tapered spring, the distance between the cutting tool and the mandrel can be reduced to facilitate the arrangement of the cutting tool; and the problem that the top spring tool and the cutting tool interfere during the processing of the tapered spring can be effectively avoided."

[0012] Preferably, a guide wheel is further provided on the guide rod, and the guide wheel is located in the track guide groove. In this way, the movement track of the floating slider is controlled through the cooperation of the guide wheel and the track guide groove, and the frictional resistance between the guide wheel and the track guide groove is reduced.

[0013] Preferably, the swing drive device further includes a cam fixed on the main journal of the crankshaft, a guide sleeve fixed on the fixed tool holder, a sliding rod sliding along the guide sleeve, a guide groove provided on the inner side surface of the radial channel, an inclined pressure block sliding along the guide groove, a connecting rod connecting the sliding rod and the inclined pressure block, and a return spring sleeved on the sliding rod. The sliding direction of the inclined pressure block is parallel to the length direction of the radial channel, the sliding rod is parallel to the radial channel, and one end of the sliding rod abuts against the cam under the action of the return spring; during the process that the floating slider and the cutting tool approach the mandrel along the radial direction of the mandrel, the inclined pressure block will push the floating slider to move away from the processing panel. In this way, during the process that the cutting tool approaches the mandrel, it can be reliably ensured that the floating slider and the cutting tool move away from the processing panel, so that the cutting tool and the top spring tool are distributed on the same axial section of the mandrel, thus enabling the cutting tool to smoothly cut the formed tapered spring during processing.

[0014] Preferably, a slider inclined surface is provided on one side of the floating slider facing the inclined pressure block, and a pressure block inclined surface cooperating with the slider inclined surface is provided on the inclined pressure block.

[0015] Preferably, a roller is further provided at one end of the sliding rod, and one end of the sliding rod abuts against the cam through the roller. In this way, the frictional resistance between the sliding rod and the cam can be reduced.

[0016] Preferably, a tool holder guide groove communicating with the radial channel is further provided on the outer side surface of the fixed tool holder. The tool holder guide groove extends along the radial direction of the mandrel, and a guiding slider cooperating with the tool holder guide groove is provided on the floating slider.

[0017] Preferably, the fixed tool holder is fixed on the processing panel by bolts or welding.

[0018] Preferably, the fixed tool holder is located above the mandrel.

[0019] The beneficial effects of the present invention are as follows: Without affecting the processing of the variable-diameter spring, the distance between the cutting tool and the mandrel can be reduced, which is beneficial to the arrangement of the cutting tool; it is beneficial to save the reciprocating time of the cutting tool up and down to improve the spring production efficiency; at the same time, it can effectively avoid the interference problem between the cutting tool and the spring during the processing of the variable-diameter spring due to the increase in the outer diameter of the spring. Description of the Drawings

[0020] Figure 1 Fig. is a partial structural schematic diagram of a spring machine applying the swing-type cutting tool device of the present invention.

[0021] Figure 2 Fig. is a structural schematic diagram of the swing-type cutting tool device of the present invention.

[0022] Figure 3 is Figure 2 A partial sectional structural schematic diagram at A-A in Fig.

[0023] Figure 4 is Figure 3 A partial enlarged view at B in Fig.

[0024] Figure 5 Fig. is a structural schematic diagram of a certain state during the process of the cutting tool of the swing-type cutting tool device of the present invention approaching the mandrel.

[0025] In the figure:

[0026] Processing panel 1;

[0027] Mandrel 2;

[0028] Top spring tool 3;

[0029] Fixed tool holder 4, radial channel 4.1, tool holder guide groove 4.2;

[0030] Floating slider 5, slider inclined surface 5.1, guiding slider 5.2;

[0031] Cutting tool 6;

[0032] Oscillating drive device 7, crankshaft 7.1, motor 7.2, connecting rod 7.3, guide sleeve 7.4, sliding rod 7.5, connecting rod 7.6, return spring 7.7, guide wheel 7.8, track guide groove 7.9, outer radial groove section 7.91, inclined groove section 7.92, inner radial groove section 7.93, cam 7.10, guide rod 7.11, guide groove 7.12, inclined pressure block 7.13. Detailed implementation mode

[0033] Specific embodiment 1: As Figure 1 , Figure 2 , Figure 3 shown, an oscillating cutter device of a spring machine, the oscillating cutter device is installed on the processing panel 1 of the spring machine, and the core shaft 2 and the spring pressing cutter 3 of the spring machine are also installed on the processing panel. The core shaft is horizontally distributed and perpendicular to the processing panel. The oscillating cutter device includes a fixed cutter seat 4, a floating slider 5, a cutting knife 6 and an oscillating drive device 7. The fixed cutter seat is fixed on the processing panel, and the fixed cutter seat and the spring pressing cutter are on the same side of the processing panel. In this embodiment, the fixed cutter seat is fixed on the processing panel by bolts or welding, and the fixed cutter seat is located above the core shaft. The fixed cutter seat is provided with a radial channel 4.1 extending along the radial direction of the core shaft, and the radial channel penetrates through the fixed cutter seat. In this embodiment, the radial channel is vertically distributed. The floating slider 5 is slidably arranged in the radial channel. The floating slider can move along the radial direction of the core shaft in the radial channel, and the floating slider can also move along the axial direction of the core shaft in the radial channel. The cutting knife 6 is fixed on the floating slider, and the cutting edge of the cutting knife faces the core shaft.

[0034] The oscillating drive device 7 is arranged on the processing panel to drive the floating slider to move in the radial channel. As Figure 3 shown, during the process that the oscillating drive device drives the floating slider and the cutting knife to move away from the core shaft along the radial direction of the core shaft (i.e., during the process that the oscillating drive device drives the floating slider and the cutting knife upwards), the cutting knife will also move closer to the processing panel along the axial direction of the core shaft, so that the cutting knife and the spring pressing cutter are staggered in the axial direction of the core shaft. As Figure 4As shown, during the process in which the swing drive device drives the floating slider and the cutting tool to approach the mandrel radially (i.e., during the process in which the swing drive device drives the floating slider and the cutting tool downward), the cutting tool will also move axially away from the processing panel along the mandrel until the cutting tool and the top spring tool are distributed on the same axial section of the mandrel. After that, the cutting tool continues to approach the mandrel radially to cut the spring. In this way, through the movement of the cutting tool in the axial direction of the mandrel, during the process of machining a stepped spring, the cutting tool and the top spring tool will be staggered in the axial direction of the mandrel, that is, the cutting tool and the machined stepped spring will be staggered in the axial direction of the mandrel. Therefore, during the process of machining the stepped spring, even if the distance between the cutting edge of the cutting tool and the axis of the mandrel (the distance in the radial direction of the mandrel) is less than the maximum outer diameter of the stepped spring, the cutting tool will not interfere with the stepped spring (effectively avoiding the problem of interference between the cutting tool and the stepped spring due to the increase in the outer diameter of the spring during the machining process of the stepped spring); thus, without affecting the machining of the stepped spring, the distance between the cutting tool and the mandrel can be reduced to facilitate the arrangement of the cutting tool. At the same time, since the distance between the cutting tool and the mandrel can be reduced, in this way, the reciprocating time of the cutting tool up and down can also be saved to improve the spring production efficiency.

[0035] Taking a pagoda spring (a type of stepped spring) as an example, during the machining process of the pagoda spring, the outer diameter of the spring is first large and then small, and the cutting point of the pagoda spring is located at the smallest outer diameter of the pagoda spring. Therefore, as long as the "maximum distance between the cutting edge of the cutting tool and the axis of the mandrel" in this embodiment is 1 - 3 millimeters larger than the "outer diameter of the spring at the position where the cutting point of the pagoda spring is located", the machined stepped spring can be smoothly cut, thereby realizing that without affecting the machining of the stepped spring, the distance between the cutting tool and the mandrel can be reduced to facilitate the arrangement of the cutting tool; at the same time, since the distance between the cutting tool and the mandrel can be reduced, the reciprocating time of the cutting tool up and down can also be saved to improve the spring production efficiency.

[0036] Specifically, such as Figure 2 、 Figure 3 、 Figure 4As shown in the figure, the swing drive device 7 includes a crankshaft 7.1 rotatably arranged on the processing panel, a motor 7.2 for driving the crankshaft to rotate, a connecting rod 7.3 connecting the crankpin of the crankshaft and the floating slider, a track guide groove 7.9 arranged on the floating slider, and a guide rod 7.11 fixedly arranged on the fixed tool holder and used for cooperating with the track guide groove. The crankshaft is horizontally distributed and perpendicular to the mandrel. The crankshaft is located above the floating slider. The upper end of the connecting rod is rotatably connected to the crankpin, and the lower end of the connecting rod is rotatably connected to the floating slider. The guide rod is parallel to the crankshaft. The guide rod is inserted into the track guide groove. The track guide groove 7.9 includes an outer radial groove section 7.91, an inclined groove section 7.92, and an inner radial groove section 7.93 sequentially distributed along the radial direction of the mandrel. The outer radial groove section is located between the mandrel and the inner radial groove section. Both the outer radial groove section and the inner radial groove section are distributed along the radial direction of the mandrel, and the distance between the outer radial groove section and the processing panel is greater than the distance between the inner radial groove section and the processing panel. The inclined groove section connects the outer radial groove section and the inner radial groove section. In this embodiment, the outer radial groove section, the inclined groove section, and the inner radial groove section are sequentially distributed from bottom to top, and both the outer radial groove section and the inner radial groove section are vertically distributed.

[0037] The motor drives the crankshaft to rotate. The crankshaft drives the floating slider and the cutting tool to approach or move away from the mandrel along the radial direction of the mandrel through the connecting rod (that is, the crankshaft drives the floating slider and the cutting tool to move up and down through the connecting rod). During the process of the floating slider and the cutting tool approaching the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove to make the cutting tool move away from the processing panel along the axial direction of the mandrel. During the process of the floating slider and the cutting tool moving away from the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove to make the cutting tool move closer to the processing panel along the axial direction of the mandrel. In this way, only through the same power component "motor", it can be realized that "during the process of the floating slider and the cutting tool approaching the mandrel along the radial direction of the mandrel, the cutting tool moves away from the processing panel along the axial direction of the mandrel, so that the cutting tool and the top spring tool are distributed on the same axial section of the mandrel, so that the cutting tool can smoothly cut the formed variable-diameter spring during processing"; at the same time, "during the process of the floating slider and the cutting tool moving away from the mandrel along the radial direction of the mandrel, the cutting tool moves closer to the processing panel along the axial direction of the mandrel, so that the cutting tool and the top spring tool are staggered in the axial direction of the mandrel, so as to realize that without affecting the processing of the variable-diameter spring, the distance between the cutting tool and the mandrel can be reduced to facilitate the arrangement of the cutting tool; and it can effectively avoid the problem of interference between the top spring tool and the cutting tool during the processing of the variable-diameter spring".

[0038] Further, as Figure 2 , Figure 3 , Figure 4As shown, the swing drive device further includes a cam 7.10 fixed on the main journal of the crankshaft, a guide sleeve 7.4 fixed on the fixed tool holder, a sliding rod 7.5 sliding along the guide sleeve, a guide groove 7.12 provided on the inner side of the radial channel, an inclined pressure block 7.13 sliding along the guide groove, a connecting rod 7.6 connecting the sliding rod and the inclined pressure block, and a return spring 7.7 sleeved on the sliding rod. The sliding direction of the inclined pressure block is parallel to the length direction of the radial channel. The sliding rod is parallel to the radial channel. In this embodiment, the sliding rod is vertically distributed. The lower end of the return spring abuts against the guide sleeve, and the upper end of the return spring abuts against the connecting rod. The upper end of the sliding rod abuts against the cam under the action of the return spring. On one side of the floating slider facing the inclined pressure block, there is a slider inclined surface 5.1, and on the inclined pressure block, there is a pressure block inclined surface 7.14 cooperating with the slider inclined surface. During the process of the floating slider and the cutting tool approaching the mandrel along the radial direction of the mandrel, the inclined pressure block will push the driving floating slider to move away from the processing panel; specifically, as Figure 5 shown, during the process of the floating slider and the cutting tool moving downward, the inclined pressure block moves upward under the action of the return spring. The inclined pressure block cooperates with the slider inclined surface through the pressure block inclined surface to push the driving floating slider to move away from the processing panel. In this way, during the process of the cutting tool approaching the mandrel, it can be reliably ensured that the floating slider and the cutting tool move away from the processing panel, so that the cutting tool and the top spring tool are distributed on the same axial section of the mandrel, so that the cutting tool can smoothly cut the formed variable-diameter spring.

[0039] Furthermore, as Figure 2 shown, a guide wheel 7.8 is further provided on the guide rod, and the guide wheel is located in the track guide groove. In this way, the movement track of the floating slider is controlled by the cooperation of the guide wheel and the track guide groove, and the frictional resistance between the guide wheel and the track guide groove is reduced.

[0040] Furthermore, a roller is provided at one end of the sliding rod, and one end of the sliding rod abuts against the cam through the roller. In this way, the frictional resistance between the sliding rod and the cam can be reduced.

[0041] Furthermore, as Figure 2 、 Figure 3 shown, a tool holder guide groove 4.2 communicating with the radial channel is further provided on the outer side of the fixed tool holder 4, and the tool holder guide groove extends along the radial direction of the mandrel. In this embodiment, the length direction of the tool holder guide groove is vertically distributed. A guide slider 5.2 cooperating with the tool holder guide groove is provided on the floating slider. In this way, the stability of the floating slider sliding along the radial direction of the mandrel can be improved.

[0042] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent transformations made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A swing cutting tool device for a spring machine, the swing cutting tool device is installed on the processing panel of the spring machine, and a mandrel and a top spring cutter of the spring machine are also installed on the processing panel. Characterized in that, The swing cutting tool device includes: A fixed tool holder, fixed on the processing panel, the fixed tool holder and the top spring cutter are located on the same side of the processing panel, the fixed tool holder is provided with a radial channel extending along the radial direction of the mandrel, and the radial channel penetrates the fixed tool holder; A floating slider, slidably arranged in the radial channel, the floating slider can move along the radial direction of the mandrel, and the floating slider can also move along the axial direction of the mandrel; A cutting tool, fixed on the floating slider, and the cutting edge of the cutting tool faces the mandrel; A swing driving device, including a track guide groove provided on the floating slider and including an outer radial groove section, an inclined groove section and an inner radial groove section distributed in sequence along the radial direction of the mandrel, a guide rod fixedly arranged on the fixed tool holder for cooperating with the track guide groove, the guide rod is inserted into the track guide groove, and the distance between the outer radial groove section and the processing panel is greater than the distance between the inner radial groove section and the processing panel; The swing driving device is arranged on the processing panel for driving the floating slider to move in the radial channel. During the process that the swing driving device drives the floating slider and the cutting tool to move away from the mandrel along the radial direction of the mandrel, the cutting tool will also move closer to the processing panel along the axial direction of the mandrel, so that the cutting tool and the top spring cutter are staggeredly distributed in the axial direction of the mandrel.

2. The swing cutting tool device for a spring machine according to claim 1, Characterized in that, The swing driving device further includes a crankshaft rotatably arranged on the processing panel, a motor for driving the crankshaft to rotate, and a connecting rod connecting the connecting rod journal of the crankshaft and the floating slider.

3. The swing cutting tool device for a spring machine according to claim 2, Characterized in that, The motor drives the crankshaft to rotate, and the crankshaft drives the floating slider and the cutting tool to move closer to or away from the mandrel along the radial direction of the mandrel through the connecting rod; during the process that the floating slider and the cutting tool move closer to the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove, so that the cutting tool moves away from the processing panel along the axial direction of the mandrel; during the process that the floating slider and the cutting tool move away from the mandrel along the radial direction of the mandrel, the guide rod cooperates with the track guide groove, so that the cutting tool moves closer to the processing panel along the axial direction of the mandrel.

4. The swing cutting tool device for a spring machine according to claim 2 or 3, Characterized in that, A guide wheel is further provided on the guide rod, and the guide wheel is located in the track guide groove.

5. The swing cutting tool device for a spring machine according to claim 2 or 3, Characterized in that, The swing driving device further includes a cam fixed on the main journal of the crankshaft, a guide sleeve fixed on the fixed tool holder, a sliding rod sliding along the guide sleeve, a guide groove provided on the inner side surface of the radial channel, an inclined pressure block sliding along the guide groove, a connecting rod connecting the sliding rod and the inclined pressure block, and a return spring sleeved on the sliding rod. The sliding direction of the inclined pressure block is parallel to the length direction of the radial channel, the sliding rod is parallel to the radial channel, and one end of the sliding rod abuts against the cam under the action of the return spring; during the process that the floating slider and the cutting tool move closer to the mandrel along the radial direction of the mandrel, the inclined pressure block will push the floating slider to move away from the processing panel.

6. The swinging cutter device of the spring machine according to claim 5, characterized in that, a slider inclined surface is provided on one side of the floating slider facing the inclined pressure block, and a pressure block inclined surface matching the slider inclined surface is provided on the inclined pressure block.

7. The swinging cutter device of the spring machine according to claim 5, characterized in that, a roller is further provided at one end of the sliding rod, and one end of the sliding rod abuts against the cam through the roller.

8. The swinging cutter device of the spring machine according to claim 1 or 2 or 3, characterized in that, a tool holder guide groove communicating with the radial channel is further provided on the outer side surface of the fixed tool holder, the tool holder guide groove extends along the radial direction of the mandrel, and a guide slider matching the tool holder guide groove is provided on the floating slider.

9. The swinging cutter device of the spring machine according to claim 1 or 2 or 3, characterized in that, the fixed tool holder is fixed on the processing panel by bolts or welding.

10. The swinging cutter device of the spring machine according to claim 1 or 2 or 3, characterized in that, the fixed tool holder is located above the mandrel.

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