Disc spring, broach system and numerical control lathe

Abstract

The application provides a disc spring, a broach system and a numerical control lathe, comprising a first outer wall and a second outer wall, the first outer wall and the second outer wall are oppositely arranged along the axial direction of the disc spring, at least one heat dissipation groove is arranged on the disc spring, and the heat dissipation groove penetrates from the first outer wall to the second outer wall. The disc spring provided by the application can dissipate heat during work, prolongs the service life of the disc spring, reduces the replacement and maintenance frequency of the disc spring, and further reduces the cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of springs, and particularly relates to a disc spring, a broach system and a numerical control lathe. BACKGROUND

[0002] The disc spring is different from a traditional spring, and is a spring washer. Main features of the disc spring are as follows: large load, short stroke, small space required, convenient combination, easy maintenance and replacement, and high economic safety, which can be used alone, or in combination.

[0003] The existing disc spring usually faces a large amount of heat in a use environment. However, the existing disc spring does not have a heat dissipation function, and cannot automatically dissipate heat, which seriously affects the service life of the disc spring and leads to high use cost. SUMMARY

[0004] Therefore, the application aims to provide a disc spring which can dissipate heat during work, improve the service life of the disc spring, reduce the replacement and maintenance frequency of the disc spring, and thus reduce the cost.

[0005] In order to solve the above problems, the application provides a disc spring, which comprises a first outer wall and a second outer wall, the first outer wall and the second outer wall are arranged opposite along the axial direction of the disc spring, at least one heat dissipation groove is arranged on the disc spring, and the heat dissipation groove penetrates from the first outer wall to the second outer wall.

[0006] Optionally, the disc spring comprises a flat section and an inclined section, the inclined section is arranged in the circumferential direction of the flat section, the inclined section is arranged at an angle with the flat section, and the heat dissipation groove is arranged on the inclined section.

[0007] Optionally, when the number of the heat dissipation grooves is at least two, the at least two heat dissipation grooves are arranged on the inclined section in the circumferential direction of the inclined section.

[0008] Optionally, the number of the heat dissipation grooves is four, the shapes of the four heat dissipation grooves are the same, the four heat dissipation grooves are uniformly arranged in the circumferential direction of the inclined section, and the shortest distances of the four heat dissipation grooves to the flat section are the same.

[0009] Optionally, the heat dissipation groove is a strip-shaped groove, the heat dissipation groove extends in the radial direction of the disc spring, and the two ends of the heat dissipation groove are arc-shaped.

[0010] Optionally, the first outer wall of the inclined section is a first wall surface, at least one protruding block is arranged on the first wall surface, and the protruding block protrudes from the first wall surface in the normal direction of the first wall surface.

[0011] Optionally, when the number of the protrusions is at least two, the at least two protrusions are arranged on the first wall surface in a circumferential direction of the first wall surface.

[0012] Optionally, the number of the protrusions is four, and the four protrusions are evenly arranged on the first wall surface in a circumferential direction of the first wall surface.

[0013] Optionally, a cross section of the protrusion parallel to the first wall surface is a right triangle, the cross section of the protrusion parallel to the first wall surface includes a first right angle side, a second right angle side and a hypotenuse, the first right angle side extends in a radial direction of the first wall surface, the second right angle side is located on a side of the first right angle side away from the planar section, and a length of the second right angle side is half of a length of the hypotenuse.

[0014] Optionally, a circumferential side wall of the inclined section away from the planar section is provided with a strength groove, the strength groove is provided with a strength strip, the strength strip is provided with a tooth prevention piece, the tooth prevention piece is located on a side of the strength strip close to the planar section, and the strength strip and the tooth prevention piece extend in a radial direction of the inclined section.

[0015] Optionally, the first outer wall of the inclined section is a first wall surface, and a thickness of the strength strip in a direction perpendicular to the first wall surface is greater than a thickness of the tooth prevention piece in the direction perpendicular to the first wall surface.

[0016] Optionally, the tooth prevention piece is arc-shaped, a cross section of the tooth prevention piece is rectangular, and a ratio of a length to a width of the cross section of the tooth prevention piece is 1:2.

[0017] Optionally, the first outer wall is provided with a first spacer, the second outer wall is provided with a second spacer, at least two disc springs are arranged in a stacking manner in an axial direction of the disc springs to form a disc spring group, the disc spring group includes at least a first disc spring and a second disc spring, the first disc spring is buckled on the second disc spring, the second outer wall of the first disc spring is arranged opposite to the first outer wall of the second disc spring, and the second spacer of the first disc spring is connected to the first spacer of the second disc spring.

[0018] Optionally, the first spacer is provided with a groove, and the second spacer of the first disc spring is inserted into the groove of the first spacer of the second disc spring.

[0019] Optionally, the first outer wall of the disc spring is provided with a plurality of first spacers, the plurality of first spacers are divided into a plurality of first spacer groups, the first spacers in each first spacer group are arranged in a radial direction of the first outer wall, and the plurality of first spacer groups are evenly arranged in a circumferential direction of the first outer wall.

[0020] The second outer wall of the disc spring is provided with a plurality of second partition pads, and the plurality of second partition pads are divided into a plurality of second partition pad groups.

[0021] The second partition pads on the first disc spring and the first partition pads on the second disc spring are arranged one by one.

[0022] Optionally, a first partition pad group is arranged between the heat dissipation groove and the protrusion adjacent to the heat dissipation groove.

[0023] In another aspect of the present application, a drawbar system is provided, comprising the disc spring as described above.

[0024] Optionally, the drawbar system further comprises a drawbar, and the disc spring is a plurality of disc springs, and the plurality of disc springs are divided into a plurality of disc spring groups, the disc springs in each disc spring group are stacked, and the plurality of disc spring groups are sleeved on the drawbar.

[0025] Optionally, the first outer walls of two adjacent disc spring groups are arranged oppositely, or the second outer walls of two adjacent disc spring groups are arranged oppositely.

[0026] In another aspect of the present application, a numerical control lathe is provided, comprising the disc spring as described above or the drawbar system as described above.

[0027] Advantages

[0028] The disc spring provided in the embodiment of the present application can dissipate heat during work, thereby prolonging the service life of the disc spring, reducing the replacement and maintenance frequency of the disc spring, and further reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a structural schematic view of a disc spring according to an embodiment of the present application;

[0030] Figure 2 FIG. 2 is a structural schematic view of a disc spring according to another embodiment of the present application; Figure 1 FIG. 3 is a structural schematic view of a cross section of a disc spring along the A-A direction according to the embodiment shown in FIG. 2;

[0031] Figure 3 FIG. 4 is a structural schematic view of a cross section of a disc spring along the B-B direction according to the embodiment shown in FIG. 2; Figure 2 FIG. 5 is a local enlarged schematic view of B according to the embodiment shown in FIG. 4;

[0032] Figure 4 FIG. 6 is a structural schematic view of a first partition pad and a second partition pad connected in a stacked state of a plurality of disc springs according to the embodiment shown in FIG. 2;

[0033] Figure 5 FIG. 7 is a structural schematic view of a disc spring group according to the embodiment shown in FIG. 2;

[0034] Figure 6Another structural schematic view of the disc spring set of the embodiment of the present application;

[0035] Figure 7 A structural schematic view of the broach system of the embodiment of the present application.

[0036] The reference signs are as follows:

[0037] 1, first outer wall; 2, second outer wall; 3, heat dissipation groove; 4, flat section; 5, inclined section; 6, protrusion; 7, strength groove; 8, anti-falling tooth; 9, first spacer; 10, second spacer; 11, disc spring set; 12, pull rod. DETAILED DESCRIPTION

[0038] For reference Figures 1 to 7 As shown in the drawings, according to the embodiment of the present application, a disc spring is provided, which comprises a first outer wall 1 and a second outer wall 2, the first outer wall 1 and the second outer wall 2 are oppositely arranged along the axial direction of the disc spring, at least one heat dissipation groove 3 is arranged on the disc spring, and the heat dissipation groove 3 penetrates from the first outer wall 1 to the second outer wall 2.

[0039] Further, as Figures 1 to 6 shown, the disc spring provided by the embodiment is provided with the heat dissipation groove 3 penetrating from the first outer wall 1 to the second outer wall 2, and when the disc spring works in an environment with a relatively high temperature or generates a relatively high heat due to friction or compression deformation of the disc spring itself during use, the heat dissipation groove 3 can be used for heat dissipation, which can greatly reduce the temperature of the disc spring, improve the service life of the disc spring, reduce the replacement and maintenance frequency of the disc spring, and further reduce the cost.

[0040] Further, it can be understood that the disc spring provided by the embodiment can be used alone or in combination with multiple disc springs arranged in a stacked manner, and the disc spring provided by the embodiment can achieve heat dissipation effect in both use modes, thereby improving the service life of the disc spring.

[0041] Further, the disc spring has a hollow circular truncated cone structure and uniform thickness, the hollow part of the circular truncated cone structure is a central hole, and the disc spring can be made of 60Si2MnA metal material, which can further improve the strength and improve the service life of the disc spring.

[0042] The disc spring comprises a flat section 4 and an inclined section 5, the inclined section 5 is arranged in the circumferential direction of the flat section 4, the inclined section 5 is arranged at an angle with the flat section 4, and the heat dissipation groove 3 is arranged on the inclined section 5.

[0043] Further, the disc spring comprises a flat section 4 and an inclined section 5, the inclined section 5 is arranged at an angle with the flat section 4, and the disc spring can generate a buffering effect when the inclined section 5 deforms under load. Considering that the inclined section 5 is arranged in the circumferential direction of the flat section 4, the heat dissipation groove 3 is arranged on the inclined section 5, so that the arrangement position of the heat dissipation groove 3 is closer to the outer periphery of the disc spring, and the heat dissipation groove 3 can have a better heat dissipation effect.

[0044] Further, the inclined section 5 is arranged in the circumferential direction of the flat section 4, so that the disc spring has a conical disc shape or an approximate conical disc shape, the stress of the inclined section 5 is more balanced when the disc spring bears load, and the service life of the disc spring can be further improved.

[0045] When the number of the heat dissipation grooves 3 is at least two, the at least two heat dissipation grooves 3 are arranged on the inclined section 5 in the circumferential direction of the inclined section 5.

[0046] Further, when the number of the heat dissipation grooves 3 is at least two, the arrangement mode of the two heat dissipation grooves 3 is provided, the two heat dissipation grooves 3 are arranged on the inclined section 5 in the circumferential direction of the inclined section 5, so that at least two heat dissipation grooves 3 are arranged in the circumferential direction of the inclined section 5, the heat dissipation effect of the heat dissipation groove 3 can be further improved, and the service life of the disc spring can be improved.

[0047] When the number of the heat dissipation grooves 3 is four, the four heat dissipation grooves 3 have the same shape, the four heat dissipation grooves 3 are uniformly arranged in the circumferential direction of the inclined section 5, and the shortest distances from the four heat dissipation grooves 3 to the flat section 4 are the same.

[0048] Further, the number of the heat dissipation grooves 3 is further provided, the number of the heat dissipation grooves 3 is four, the four heat dissipation grooves 3 are equally spaced in the circumferential direction of the inclined section 5 and are uniformly distributed on mutually perpendicular axes, and the shortest distances from the four heat dissipation grooves 3 to the flat section 4 are the same, so that the stress of the inclined section 5 is more balanced when the disc spring bears load, the heat dissipation effect of the disc spring in the circumferential direction is more uniform, the local temperature of the disc spring is avoided to be too low or too high, the disc spring as a whole is in a relatively consistent temperature, and the service life of the disc spring can be further improved.

[0049] The heat dissipation groove 3 is a strip-shaped groove, the heat dissipation groove 3 extends in the radial direction of the disc spring, and the two ends of the heat dissipation groove 3 are arc-shaped.

[0050] Further, the shape of the heat dissipation groove 3 is provided, the heat dissipation groove 3 is a strip-shaped groove with arc-shaped two ends, which is convenient for production and processing and facilitates the forming of the heat dissipation groove 3; on the other hand, the heat dissipation groove 3 is arranged in the radial direction of the disc spring, which facilitates the dissipation of heat on the inner side of the disc spring, and the groove position in the circumferential direction is relatively small, so that the strength of the disc spring can be guaranteed, and the service life of the disc spring can be further improved.

[0051] Further, the groove width of the strip-shaped groove is 1mm to 2mm.

[0052] The first outer wall 1 of the inclined section 5 is a first wall surface, and at least one protrusion 6 is arranged on the first wall surface and protrudes from the first wall surface along the normal direction of the first wall surface.

[0053] Further, by arranging at least one protrusion 6 on the inclined section 5, the friction between the disc springs or the friction between the disc springs and the workpiece can be increased when the disc springs are stacked or when the disc springs are deformed under load, which can effectively prevent the disc springs from failing and ensure the performance of the disc springs in buffering the load.

[0054] When the number of protrusions 6 is at least two, the at least two protrusions 6 are arranged on the first wall surface along the circumferential direction of the first wall surface.

[0055] Further, when the number of protrusions 6 is at least two, the at least two protrusions 6 are arranged on the first wall surface along the circumferential direction of the first wall surface, so that the protrusions 6 are arranged along the circumferential direction of the first wall surface, which can increase the contact area between the circumferential direction of the disc spring and the workpiece or other disc springs, further increase the friction, effectively prevent the disc springs from failing, and ensure the performance of the disc springs in buffering the load.

[0056] When the number of protrusions 6 is four, the four protrusions 6 are uniformly arranged on the first wall surface along the circumferential direction of the first wall surface.

[0057] Further, the specific number of protrusions 6 is provided, the four protrusions 6 are arranged on the inclined section 5 along the circumferential direction at equal intervals, the cross-sectional shape of the protrusion 6 is a right-angled triangle with a ratio of the short side to the hypotenuse of 1:2, and the center line of the protrusion 6 and the center line of the heat dissipation groove 3 form an angle of 45 degrees, which can make the force on the inclined section 5 more balanced when the disc spring bears the load, and at the same time, the friction in the circumferential direction of the disc spring is relatively uniform, avoiding the local high friction of the disc spring or the local depth of the friction of the disc spring, which can keep the disc spring in a balanced state during use, and further improve the service life and buffering performance of the disc spring.

[0058] The cross section of the protrusion 6 parallel to the first wall surface is a right-angled triangle, the cross section of the protrusion 6 parallel to the first wall surface includes a first right-angled side, a second right-angled side and a hypotenuse, the first right-angled side extends along the radial direction of the first wall surface, the second right-angled side is located on the side of the first right-angled side away from the flat section 4, and the length of the second right-angled side is half the length of the hypotenuse.

[0059] Further, the shape of the protrusion 6 is provided, the cross section of the protrusion 6 is a right-angled triangle, the length of the second right-angled side of the right-angled triangle is half the length of the hypotenuse, and the second right-angled side is located on the side of the first right-angled side away from the flat section 4, which can further increase the friction and provide sufficient bearing capacity under small deformation, effectively preventing the disc spring from failing.

[0060] The strength groove 7 is arranged on the circumferential side wall of the inclined section 5 away from the plane section 4, and a strength strip is arranged in the strength groove 7, and the anti-disengagement tooth 8 is arranged on the strength strip, and the anti-disengagement tooth 8 is located on the side of the strength strip close to the plane section 4, and the strength strip and the anti-disengagement tooth 8 extend in the radial direction of the inclined section 5.

[0061] Further, the strength groove 7 is arranged, and the strength strip with the anti-disengagement tooth 8 is arranged in the strength groove 7, so that the mechanical strength of the disc spring is improved, and the operation of the disc spring is more stable.

[0062] Further, the anti-disengagement tooth 8 is arranged, so that the strength strip is prevented from disengaging from the strength groove 7, and the strengthening effect of the strength strip can be ensured.

[0063] Further, the strength strip can be made of 60Si2MnA material, so as to further improve the strength of the disc spring.

[0064] The first outer wall 1 of the inclined section 5 is a first wall surface, and the thickness of the strength strip in the direction perpendicular to the first wall surface is greater than the thickness of the anti-disengagement tooth 8 in the direction perpendicular to the first wall surface.

[0065] Further, the thickness relationship between the anti-disengagement tooth 8 and the strength strip is provided, and the thickness of the anti-disengagement tooth 8 is less than that of the strength strip, so as to facilitate the installation of the strengthening strip on one hand, and on the other hand, the thickness of the anti-disengagement tooth 8 is relatively small, so as to prevent the anti-disengagement tooth 8 from being extruded and disengaging from the strength groove 7 due to the deformation of the inclined section 5 under load, and the installation strength of the strengthening strip is further ensured.

[0066] The anti-disengagement tooth 8 is arc-shaped, the cross section of the anti-disengagement tooth 8 is rectangular, and the length-width ratio of the cross section of the anti-disengagement tooth 8 is 1:2.

[0067] Further, the shape of the anti-disengagement tooth 8 is provided, the anti-disengagement tooth 8 is arc-shaped, and the length-width ratio of the cross section of the anti-disengagement tooth 8 is 1:2, so as to increase the contact area between the anti-disengagement tooth 8 and the inclined section 5, further prevent the strengthening strip from disengaging from the strengthening groove, and ensure the installation strength of the strengthening strip.

[0068] The first outer wall 1 is provided with a first spacer 9, the second outer wall 2 is provided with a second spacer 10, at least two disc springs are stacked in the axial direction of the disc spring to form a disc spring group, the disc spring group at least includes a first disc spring and a second disc spring, the first disc spring is buckled on the second disc spring, the second outer wall 2 of the first disc spring is arranged opposite to the first outer wall 1 of the second disc spring, and the second spacer 10 of the first disc spring is connected to the first spacer 9 of the second disc spring.

[0069] Further, the disc spring comprises a first spacer 9 and a second spacer 10, through the arrangement of the first spacer 9 and the second spacer 10, when a plurality of disc springs are arranged in a stacked manner, the first spacer 9 of adjacent disc springs can be connected with the second spacer 10, so that the plurality of disc springs have a connection relationship, so that the plurality of disc springs become a whole, effectively increase the friction force under the stacked combination and the matched combination of the disc spring, the first spacer 9 and the second spacer 10 can also play a buffering role, more convenient to use, and the performance of the disc spring can be improved.

[0070] The first spacer 9 is provided with a groove, and the second spacer 10 of the first disc spring is inserted into the groove of the first spacer 9 of the second disc spring.

[0071] Further, the first spacer 9 is provided with a convex point, and the second spacer 10 is provided with a groove, so as to facilitate the connection between the first spacer 9 and the second spacer 10, and effectively increase the friction force under the stacked combination and the matched combination of the disc spring.

[0072] Further, Figure 5 Fig. 2 shows a structure schematic diagram of the stacked combination of the disc spring in the assembly process, Figure 6 Fig. 3 shows a structure schematic diagram of the matched combination of the disc spring in the assembly process. In the assembly process, the first spacer 9 and the second spacer 10 are not aligned in the axial direction of the disc spring, and after the assembly is completed, as shown in Figure 4 Fig. 4, the first spacer 9 and the second spacer 10 are aligned in the axial direction of the disc spring.

[0073] The first outer wall 1 of the disc spring is provided with a plurality of first spacers 9, and the plurality of first spacers 9 are divided into a plurality of first spacer groups, the first spacers 9 in each first spacer group are arranged along the radius of the first outer wall 1, and the plurality of first spacer groups are uniformly arranged along the circumference of the first outer wall 1.

[0074] The second outer wall 2 of the disc spring is provided with a plurality of second spacers 10, and the plurality of second spacers 10 are divided into a plurality of second spacer groups, the second spacers 10 in each second spacer group are arranged along the radius of the second outer wall 2, and the plurality of second spacer groups are uniformly arranged along the circumference of the second outer wall 2.

[0075] The second spacer 10 on the first disc spring is arranged in one-to-one correspondence with the first spacer 9 on the second disc spring.

[0076] Further, each group comprises two first spacers 9 and two second spacers 10, and when a plurality of disc springs are arranged in a stacked manner, adjacent disc springs can be connected through a plurality of first spacers 9 and second spacers 10, thereby improving the connection strength between the plurality of disc springs and effectively increasing the friction force under the stacked combination and the matched combination of the disc spring.

[0077] Further, arranging two first spacers 9 and two second spacers 10 in the radial direction of the inclined section 5 can avoid slipping or translation of adjacent disc springs, further improve the fixing strength of the stacked disc springs, and effectively increase the friction force under the disc spring stacking combination and the folding combination.

[0078] Further, the first spacers 9 and the second spacers 10 are each 16 in number and are in the shape of cylindrical protrusions with a diameter of 1 mm to 2 mm and are made of rubber. The first spacers 9 of two adjacent groups and the second spacers 10 of two adjacent groups are at an angle of 45 degrees. One group of first spacers 9 and second spacers 10 is arranged between the heat dissipation grooves 3 and the protrusions 6.

[0079] A group of first spacers is arranged between the heat dissipation grooves 3 and the protrusions 6 adjacent to the heat dissipation grooves 3.

[0080] Further, as shown in Figure 5 and Figure 6 , during assembly, the first spacers 9 and the second spacers 10 are used in cooperation. The 16 second spacers 10 at the lower end of the disc spring are fitted into the matching 16 first spacers 9 of the lower disc spring.

[0081] Further, the arrangement positions of the first spacers 9 and the second spacers 10 can make the stress more balanced when the disc springs are stacked.

[0082] Further, each group of first spacers 9 is at an angle of 22.5 degrees with the heat dissipation grooves 3, and each group of second spacers 10 is at an angle of 22.5 degrees with the heat dissipation grooves 3.

[0083] In another aspect of the embodiment, a drawbar system is provided, which includes the disc spring described above.

[0084] The drawbar system of the embodiment includes the disc spring described above, and thus has all the beneficial effects of the disc spring of any embodiment of the present application, which will not be described again here.

[0085] The drawbar system further includes a drawbar 12, and the disc springs are multiple and are divided into multiple disc spring groups 11. The disc springs in each disc spring group 11 are stacked, and the multiple disc spring groups 11 are sleeved on the drawbar 12.

[0086] Further, as shown in Figure 7 , three disc springs are stacked to form a disc spring group 11 assembly, and two disc spring groups 11 assemblies are folded to form a disc spring group 11 assembly, which are uniformly distributed on the drawbar 12 in the motor of the vertical machining center electric spindle.

[0087] The first outer walls 1 of two adjacent disc spring groups 11 are arranged opposite to each other, or the second outer walls 2 of two adjacent disc spring groups 11 are arranged opposite to each other.

[0088] Further, each disc spring group 11 includes 2 to 4 disc springs.

[0089] Further, as shown in Figure 5 、 Figure 6 the assembly process of the drawbar system is as follows: 1) the top end of one disc spring body with the first spacer 9 is upward, and the bottom end of another disc spring with the second spacer 10 is downward, the first spacer 9 is engaged with the second spacer 10, so that the disc spring is positioned on another disc spring, so that the axis and center line of the two disc spring bodies coincide with each other, and the same principle is stacked. 2) When the disc spring is stacked and combined, three disc springs are stacked and combined into a disc spring group 11, and the stacked disc spring group 11 is sleeved on the drawbar 12, so that the disc spring group 11 cooperates with the drawbar 12. 3) When the disc spring is combined, two disc spring groups 11 are combined into a disc spring group 11 assembly, and the combined disc spring group 11 assembly is sleeved on the drawbar 12, so that the disc spring group 11 assembly cooperates with the drawbar 12. 4) Place the combined drawbar 12 and disc spring group 11 assembly in the automatic drawbar system of the vertical machining center electric spindle, drive the tool handle to rotate, and use.

[0090] Another aspect of the embodiment provides a numerical control lathe comprising the disc spring or the drawbar system.

[0091] The numerical control lathe of the embodiment comprises the disc spring or the drawbar system, so it has all the beneficial effects of the disc spring of any embodiment of the application or the drawbar system of any embodiment of the application, which will not be repeated here.

[0092] It is easy for those skilled in the art to understand that the above-mentioned advantageous modes can be freely combined and stacked without conflict.

[0093] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, which should be regarded as the protection scope of the present application.

Claims

1. A disc spring, characterized in that, It includes a first outer wall (1) and a second outer wall (2), the first outer wall (1) and the second outer wall (2) are arranged opposite to each other along the axial direction of the disc spring, and at least one heat dissipation groove (3) is provided on the disc spring, the heat dissipation groove (3) extends from the first outer wall (1) to the second outer wall (2); The disc spring includes a flat section (4) and an inclined section (5). The inclined section (5) is arranged around the flat section (4) in the circumferential direction. The inclined section (5) is arranged at an angle to the flat section (4). The heat dissipation groove (3) is arranged on the inclined section (5). The first outer wall (1) of the inclined section (5) is a first wall surface, and at least two protrusions (6) are provided on the first wall surface. The protrusions (6) protrude from the first wall surface along the normal direction of the first wall surface. The cross section of the protrusion (6) parallel to the first wall is a right triangle. The cross section of the protrusion (6) parallel to the first wall includes a first right-angled side, a second right-angled side, and a hypotenuse. The first right-angled side extends radially along the first wall. The second right-angled side is located on the side of the first right-angled side away from the plane segment (4). The length of the second right-angled side is half the length of the hypotenuse. At least two of the protrusions (6) are disposed on the first wall surface in the circumferential direction of the first wall surface; The disc spring has a plurality of first spacers (9) on its first outer wall (1), and the plurality of first spacers (9) are divided into a plurality of first spacer groups. A first spacer group is provided between the heat dissipation groove (3) and the protrusion (6) adjacent to the heat dissipation groove (3).

2. The disc spring according to claim 1, characterized in that, When the number of heat dissipation grooves (3) is at least two, at least two heat dissipation grooves (3) are arranged on the inclined section (5) along the circumference of the inclined section (5).

3. The disc spring according to claim 1, characterized in that, The number of heat dissipation slots (3) is four. The four heat dissipation slots (3) have the same shape. The four heat dissipation slots (3) are evenly arranged along the circumference of the inclined section (5). The shortest distance between the four heat dissipation slots (3) and the planar section (4) is the same.

4. The disc spring according to claim 1, characterized in that, The heat dissipation groove (3) is a strip-shaped groove that extends radially along the disc spring, and both ends of the heat dissipation groove (3) are arc-shaped.

5. The disc spring according to claim 1, characterized in that, The number of the protrusions (6) is four, and the four protrusions (6) are evenly arranged on the first wall surface along the circumference of the first wall surface.

6. The disc spring according to claim 1, characterized in that, A strength groove (7) is provided on the circumferential sidewall of the inclined section (5) away from the planar section (4). A strength strip is provided in the strength groove (7). An anti-detachment tooth (8) is provided on the strength strip. The anti-detachment tooth (8) is located on the side of the strength strip close to the planar section (4). The strength strip and the anti-detachment tooth (8) extend radially along the inclined section (5).

7. The disc spring according to claim 6, characterized in that, The thickness of the strength strip in the direction perpendicular to the first wall surface is greater than the thickness of the anti-detachment tooth (8) in the direction perpendicular to the first wall surface.

8. The disc spring according to claim 6, characterized in that, The anti-detachment tooth (8) is arc-shaped, and the cross-section of the anti-detachment tooth (8) is rectangular. The ratio of the length to the width of the cross-section of the anti-detachment tooth (8) is 1 to 2.

9. The disc spring according to any one of claims 1-8, characterized in that, The second outer wall (2) of the disc spring is provided with a plurality of second spacers (10), and at least two disc springs are stacked together along the axial direction of the disc spring to form a disc spring group (11). The disc spring group (11) includes at least a first disc spring and a second disc spring. The first disc spring is fastened on the second disc spring. The second outer wall (2) of the first disc spring is disposed opposite to the first outer wall (1) of the second disc spring. The second spacers (10) on the first disc spring and the first spacers (9) on the second disc spring are disposed in a one-to-one correspondence. The second spacers (10) of the first disc spring are connected to the first spacers (9) of the second disc spring.

10. The disc spring according to claim 9, characterized in that, The first spacer (9) is provided with a groove, and the second spacer (10) of the first disc spring is inserted into the groove of the first spacer (9) of the second disc spring.

11. The disc spring according to claim 10, characterized in that, The first septum (9) in each first septum group is arranged along the radius of the first outer wall (1), and the plurality of first septum groups are evenly arranged along the circumference of the first outer wall (1). The plurality of second septa (10) are divided into a plurality of second septa groups, and the second septa (10) in each second septa group are arranged along the radius of the second outer wall (2), and the plurality of second septa groups are evenly arranged along the circumference of the second outer wall (2).

12. A broaching system, characterized in that, Includes the disc spring as described in any one of claims 1-11.

13. The broaching system according to claim 12, characterized in that, It also includes a pull rod (12), and there are multiple disc springs. The multiple disc springs are divided into multiple disc spring groups (11). The disc springs in each disc spring group (11) are stacked on each other, and the multiple disc spring groups (11) are sleeved on the pull rod (12).

14. The broaching system according to claim 13, characterized in that, The first outer walls (1) of two adjacent disc spring assemblies (11) are arranged opposite each other, or the second outer walls (2) of two adjacent disc spring assemblies (11) are arranged opposite each other.

15. A CNC lathe, characterized in that, Includes the disc spring as described in any one of claims 1-11 or the broaching system as described in any one of claims 12-14.

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