Torsional spring limiting assembly of workpiece machining apparatus and workpiece machining apparatus

Abstract

A workpiece machining apparatus and a torsional spring limiting assembly thereof. The torsional spring limiting assembly comprises: a first limiting portion (100), which comprises a first through hole (510) and a first fastening slot (110), the first through hole (510) running through the first limiting portion (100); a second limiting portion (200), which comprises a second through hole (520) and a second fastening slot (210), the second through hole (210) running through the second limiting portion (200); and a sleeving portion (300), which comprises a third through hole (530) running through the sleeving portion (300). The sleeving portion (300) connects the first limiting portion (100) and the second limiting portion (200), and the first limiting portion (100) and the second limiting portion (200) are located at two ends of the sleeving portion (300). One end face of the first limiting portion (100), one end face of the second limiting portion (200) and the outer surface of the sleeving portion (300) jointly define a limiting space (400); the first through hole (510), the second through hole (520) and the third through hole (530) are in communication and jointly define a through space; and the limiting space (400) is configured to mount a torsional spring (20), and two ends of the torsional spring (20) are respectively fixed by the first fastening slot (110) and the second fastening slot (210). The limiting assembly can maintain a limiting effect on the torsional spring.

Description

Torsion spring limit assembly of workpiece processing equipment and workpiece processing equipment Technical Field

[0001] The present application relates to the technical field of workpiece processing, and in particular to a torsion spring limit assembly of a workpiece processing device and the workpiece processing device. Background Art

[0002] In related art, workpiece processing equipment includes a power unit, a drive unit, and a cutting device. The power unit includes a power motor and a first gear assembly. The drive assembly includes a second gear assembly, a movable plate structure, and a connecting rod. The power motor drives the first gear assembly to rotate. The rotation of the first gear assembly drives the second gear assembly, which in turn drives the movable plate structure to move up and down along the connecting rod. The movement of the movable plate structure drives the cutting device to move the cutting tool in the cutting device to the workpiece surface for operation or to reset the cutting tool.

[0003] The Chinese invention patent application number CN201880058793.9 discloses a portion of a cutting device for a manufacturing device, comprising at least one spring (126, 128, 134), wherein the at least one spring connects a support member moving device (110) to a support member (106), and the at least one spring (126, 128, 134) comprises at least one nonlinear spring (126, 128) surrounding a support rod (108). Each spring (126, 128, 134) is jointly restricted by the support member moving device (110) and the support member (106), and the restriction is performed along the deformation direction of each spring (126, 128, 134).

[0004] When the support member moving device (110) and the support member (106) are driven by the motor 140 and the gear 114, a relative position change occurs, changing the state of the springs (126, 128, 134). The springs (126, 128, 134) are jointly limited by the support member moving device (110) and the support member (106), and at the same time, the springs (126, 128, 134) also change shape due to the relative position change of the support member moving device (110) and the support member (106).

[0005] When the support member moving device (110) and the support member (106) are driven by the motor 140 and the gear 114 to produce relative position changes, the restricting effect on the springs (126, 128, 134) is reduced. Summary of the Invention

[0006] The embodiments of the present application provide a torsion spring limiting assembly of a workpiece processing device and the workpiece processing device, which can maintain the limiting effect on the torsion spring.

[0007] The present invention provides a torsion spring limit assembly for a workpiece processing device, comprising:

[0008] A first limiting portion includes a first through hole and a first slot, wherein the first through hole passes through the first limiting portion;

[0009] A second limiting portion includes a second through hole and a second slot, wherein the second through hole passes through the second limiting portion; and

[0010] a sleeve portion, comprising a third through hole extending through the sleeve portion, the sleeve portion connecting the first limiting portion and the second limiting portion, the first limiting portion and the second limiting portion being located at both ends of the sleeve portion, an end surface of the first limiting portion, an end surface of the second limiting portion, and an outer surface of the sleeve portion jointly defining a limiting space;

[0011] The first through hole, the second through hole and the third through hole are connected to define a through space;

[0012] The limiting space is used to install a torsion spring, and two ends of the torsion spring are respectively fixed by the first clamping slot and the second clamping slot.

[0013] Optionally, the first limiting portion and the sleeve portion are integrally provided, and the second limiting portion and the sleeve portion are detachably connected.

[0014] Optionally, the sleeve portion includes a main structure and a connecting structure, one end of the main structure and the first limiting portion are integrally provided, and the other end of the main structure and the connecting structure are integrally provided;

[0015] The second limiting portion is at least partially sleeved on the connecting structure.

[0016] Optionally, the connection structure is provided with a latching groove;

[0017] The second limiting portion includes a locking block. When the second limiting portion is sleeved on the connecting structure, the locking block cooperates with the locking groove to fix the second limiting portion on the sleeve portion.

[0018] Optionally, the second limiting portion further includes a sleeve structure and a blocking structure, the blocking block is provided on the inner surface of the sleeve structure, and the blocking block is connected to the blocking structure;

[0019] The sleeve structure is sleeved on the connecting structure, and the connecting structure and the blocking structure are in contact with each other;

[0020] The inner surface of the blocking structure includes a plane and an arcuate surface, and the top surface of the blocking block is flush with the plane of the blocking structure.

[0021] Optionally, the second limiting portion further includes a first limiting boss, and the blocking structure is provided on the inner surface of the first limiting boss;

[0022] The outer diameter of the first limiting boss is greater than the outer diameter of the sleeve structure, so as to form a step structure between the outer surface of the first limiting boss and the outer surface of the sleeve structure.

[0023] Optionally, the second card slot is located at the root of the card block.

[0024] Optionally, the first limiting portion includes a second limiting boss and a third limiting boss, and the second limiting ring boss and the third limiting boss are parallel and spaced apart from each other to form a groove between the second limiting boss and the third limiting boss.

[0025] Optionally, the third limiting boss is farther away from the second limiting portion than the second limiting boss, and the outer diameter of the second limiting boss is greater than the outer diameter of the third limiting boss.

[0026] Optionally, the wall used to form the through space includes at least:

[0027] Two arc-shaped walls and two plane walls, the two plane walls are arranged opposite to each other, the two arc-shaped walls are arranged opposite to each other, and a plane wall connects the two arc-shaped walls.

[0028] Optionally, one of the arc-shaped walls includes a first arc-shaped segment, a second arc-shaped segment and a third arc-shaped segment;

[0029] The first arc segment and the third arc segment are connected to the second arc segment, and the first arc segment and the third arc segment are symmetrically arranged relative to the second arc segment;

[0030] The first arc segment and the second arc segment have different curvatures.

[0031] Optionally, the first card slot and the second card slot are symmetrically arranged relative to the socket portion.

[0032] Optionally, the first card slot is a blind hole or a through hole;

[0033] The second slot is a blind hole or a through hole.

[0034] Optionally, the sleeve portion is a cylindrical structure.

[0035] Optionally, the first limiting portion and the sleeve portion are detachably connected, and the second limiting portion and the sleeve portion are detachably connected.

[0036] Optionally, the projection of the through space along the length direction of the torsion spring limiting assembly is non-circular.

[0037] An embodiment of the present application provides a workpiece processing device, which includes a housing and a limiting assembly and a torsion spring arranged in the housing. The limiting assembly is the limiting assembly as described in any of the above items, and the torsion spring is installed in the limiting space of the limiting assembly.

[0038] The limiting space of the limiting assembly of the embodiment of the present application can be used to install a torsion spring, or in other words, the torsion spring can be installed in the limiting space. When the torsion spring is installed in the limiting space, the torsion spring is limited by one end face of the first limiting portion, one end face of the second limiting portion, and the outer surface of the sleeve portion, and the two ends of the torsion spring are respectively fixed by the first slot of the first limiting portion and the second slot of the second limiting portion. Therefore, the limiting assembly can not only limit the two ends of the torsion spring, but also fix the two ends of the torsion spring. The effect of stably limiting the torsion spring is achieved. Even if the torsion spring begins to deform from its free end, the two ends of the torsion spring are always limited by the limiting assembly, thereby improving the stability of the torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0040] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0041] FIG1 is a schematic structural diagram of a workpiece processing device provided in an embodiment of the present application.

[0042] FIG2 is a schematic diagram of a portion of the structure of the workpiece processing equipment shown in FIG1 .

[0043] FIG3 is a schematic diagram of a portion of the structure of the workpiece processing equipment shown in FIG1 .

[0044] FIG4 is a schematic diagram of a portion of the structure of the workpiece processing equipment shown in FIG1 .

[0045] FIG5 is a schematic structural diagram of a limiting torsion spring of a limiting assembly according to an embodiment of the present application.

[0046] FIG6 is a three-dimensional diagram of the position limiting assembly provided in an embodiment of the present application.

[0047] FIG7 is a cross-sectional view of the position limiting assembly shown in FIG6 .

[0048] FIG8 is an exploded schematic diagram of the position limiting assembly provided in an embodiment of the present application.

[0049] FIG9 is a schematic structural diagram of the integrated arrangement of the first limiting portion and the sleeve portion in the limiting assembly provided in an embodiment of the present application.

[0050] FIG10 is a schematic diagram of another angle structure of the first limiting portion and the sleeve portion in the limiting assembly provided in an embodiment of the present application, in which the first limiting portion and the sleeve portion are integrally arranged.

[0051] FIG11 is a schematic structural diagram of the second position-limiting portion in the position-limiting assembly provided in an embodiment of the present application.

[0052] FIG12 is an enlarged view of a portion A in the second limiting portion shown in FIG11 .

[0053] FIG13 is a schematic diagram showing the structure of the second limiting portion in the limiting assembly according to another embodiment of the present application from another angle. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0055] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] As shown in Figures 1 and 2, Figure 1 is a schematic structural diagram of a workpiece processing device provided in an embodiment of the present application, and Figure 2 is a schematic structural diagram of a portion of the workpiece processing device shown in Figure 1. The workpiece processing device 1000 may include a housing 1100, a cover plate 1200, a drive assembly 1300, a transmission assembly 1400, a cutting assembly 1500, and a suction and discharge roller 1600.

[0057] The housing 1100 may include a cavity 1110 and an opening 1120 . The cover 1200 and the housing 1100 are rotatably connected, that is, the cover 1200 can rotate relative to the housing 1100 to cover or open the opening 1120 .

[0058] The workpiece processing equipment 1000 may include a workpiece processing table 1130, which is used to place objects to be processed, such as metal parts, paper, leather, wood boards, food and other workpieces. The workpiece processing table 1130 can be located at the opening 1120 to facilitate the placement of objects to be processed. Exemplarily, at least a portion of the workpiece processing table 1130 is located on the bottom inner surface of the shell 1100. In an optional embodiment of the present application, when the cover 1200 opens the opening 1120, the inner side surface of the cover 1200 can be roughly flush with the bottom inner surface of the shell 1100, and the inner side surface of the cover 1200 can serve as an extension of the workpiece processing table 1130.

[0059] It is understood that the inner surface of the housing 1100 is the surface used to form the cavity 1110. It is also understood that the bottom of the housing 1100 is the location where the housing 1100 is placed on an installation location, such as a desktop, when the workpiece processing device 1000 is in use.

[0060] The driving assembly 1300 , the transmission assembly 1400 , the cutting assembly 1500 and the suction and discharge roller 1600 can all be disposed in the cavity 1110 . The cutting assembly 1500 and the suction and discharge roller 1600 are both located above the workpiece processing table 1130 .

[0061] The suction and discharge roller 1600 can be mounted on a connecting rod 1700 and can rotate on the connecting rod 1700 to achieve material suction and discharge. There is at least one suction and discharge roller 1600, and for example, there are two suction and discharge rollers 1600, which are mounted on both ends of the connecting rod 1700. The connecting rod 1700 is mounted on the housing 1100. Exemplarily, the connecting rod 1700 and the suction and discharge roller 1600 are both located below the plane where the cutting assembly 1500 is located.

[0062] It should be noted that the plane where the cutting assembly 1500 is located may be roughly parallel to the bottom of the housing 1200 , and the plane where the cutting assembly 1500 is located may also be roughly parallel to the workpiece processing table 1130 .

[0063] The cutting assembly 1500 is capable of relative movement relative to the workpiece processing table 1130 to facilitate processing of an object placed on the workpiece processing table.

[0064] Exemplarily, the cutting assembly 1500 can move parallel to the plane of the workpiece processing table 1130. For example, the cutting assembly 1500 can be passed through by one or more rod structures to achieve positioning of the cutting assembly 1500, or to restrict the cutting assembly 1500. For example, there are two rod structures, including a first positioning rod 1800 and a second positioning rod 1900, and both the first positioning rod 1800 and the second positioning rod 1900 can pass through the cutting assembly 1500, so that the cutting assembly 1500 can move along the length direction of the first positioning rod 1800 and the length direction of the second positioning rod 1900.

[0065] It is understood that first positioning rod 1800 has a length direction, and second positioning rod 1900 also has a length direction, and the length direction of first positioning rod 1800 and the length direction of second positioning rod 1900 are the same. In this embodiment of the application, the length direction of first positioning rod 1800 is defined as the horizontal direction. It should be noted that the length direction of first positioning rod 1800 can be the same as the length direction of drive rod 30 in drive assembly 1300.

[0066] In an optional embodiment of the present application, the lateral movement range of the cutting assembly 1500 is limited, such as the lateral movement range of the cutting assembly 1500 is limited between two suction and discharge rollers 1600 and will not collide with the suction and discharge rollers 1600.

[0067] The transmission assembly 1400 can be drivably connected to the cutting assembly 1500, and can drive the cutting assembly 1500 to move along the length direction of the first positioning rod 1800 and the length direction of the second positioning rod 1900. In an optional embodiment of the present application, the transmission assembly 1400 may include a transmission belt, one side of which is provided with a plurality of teeth, and the plurality of teeth can be engaged with a plurality of gears, and the plurality of gears can be connected to the motor and the cutting assembly 1500, thereby enabling the transmission belt to drive the cutting assembly 1500 to move along the length direction of the first positioning rod 1800 and the length direction of the second positioning rod 1900.

[0068] Drive assembly 1300 is in driving connection with cutting assembly 1500. Drive assembly 1300 is capable of driving portions of cutting assembly 1500, such as the portion containing the cutting tool, to move vertically. The term "vertical" can be understood as a direction generally perpendicular to workpiece processing platform 1130. When portions of cutting assembly 1500 are driven vertically by displacement assembly 1300, the distance between the vertically moving portion of cutting assembly 1500 and workpiece processing platform 1130 changes, facilitating processing of items placed on workpiece processing platform 1130 by cutting assembly 1500 and facilitating repositioning of cutting assembly 1500.

[0069] For example, the drive assembly 1300 may include a drive motor and a drive rod 30, wherein the drive motor is drive-connected to the drive rod 30, and the drive rod 30 passes through the cutting assembly 1500 and can drive a portion of the cutting assembly 1500, such as a portion having a cutting tool, to move vertically.

[0070] The cutting assembly 1500 may include a transversely movable housing 1510, a vertically movable housing 1520, a cutting tool 1530, a torsion spring 20, and a torsion spring limiting assembly 10. The transversely movable housing 1510 is connected to the first positioning rod 1800 and the second positioning rod 1900. The limiting assembly 10 is sleeved on the driving rod 30 and disposed within the transversely movable housing 1510. The torsion spring 20 is sleeved on the limiting assembly 10 and is limited by the limiting assembly 10, for example, at both ends of the torsion spring 20. The torsion spring 20 is drivingly connected to the vertically movable housing 1520, and the cutting tool 1530 is mounted on the vertically movable housing 1520. When driven by the driving motor, the driving rod 30 can rotate, driving the limiting assembly 10 to rotate along with the driving rod 30, thereby driving the torsion spring 20 to deform. When the transverse moving shell 1510 does not move vertically, the vertical moving shell 1520 is driven by the torsion spring 20 to move vertically relative to the transverse moving shell 1510.

[0071] In an optional embodiment of the present application, see Figure 3, which is a partial structural diagram of the workpiece processing device shown in Figure 1. The workpiece processing device 1000 may further include a guide kit 1540, which is drivingly connected to the torsion spring 20, and the torsion spring 20 can drive the guide kit 1540 to move vertically.

[0072] Exemplarily, the guide kit 1540 may include a guide rod and a rod sleeve, the upper and lower ends of the guide rod are fixed to the transverse movable shell 1510, the rod sleeve is fixedly connected to the vertical movable shell 1520, and the rod sleeve mounted on the guide rod moves in the vertical space defined by the transverse movable shell 1510 and the guide rod. Specifically, the torsion spring 20 is drive-connected to the rod sleeve, and the torsion spring 20 drives the rod sleeve to move, thereby driving the vertical movable shell 1520 to move. It is understandable that the guide rod and the rod sleeve are a specific example of the guide kit 1540 of the embodiment of the present application, and the embodiment of the present application does not limit how to realize the vertical movement of the vertical movable shell 1520. It should be understood that the manner in which the driving assembly 1300 in this field can drive the vertical movable shell 1520 to move vertically is within the protection scope of the embodiment of the present application.

[0073] The vertical movement of the guide sleeve 1540 is limited to a certain range, such as between the two ends of the transverse movement housing 1510. The guide sleeve 1540 is fixedly connected to the vertical movement housing 1520. The torsion spring 20 drives the vertical movement of the guide sleeve 1540 and can also drive the vertical movement of the vertical movement housing 1520. In other words, the torsion spring 20 drives the guide sleeve 1540 and the vertical movement housing 1520 to move vertically together.

[0074] In an optional embodiment of the present application, please refer to Figure 4, which is a partial structural diagram of the workpiece processing equipment shown in Figure 1. Figure 4 illustrates an optional implementation of the torsion spring 20 and the limit assembly 10 in the cutting assembly 1500 of the embodiment of the present application, which does not constitute a restriction on the torsion spring 20 and the limit assembly 10. Among them, the drive rod 30 has a first end 31 and a second end 32, and the drive motor is driven and connected to the first end 31, such as the drive rod 30 also has teeth 37 near the first end 31, and the teeth 27 are directly or indirectly engaged with the drive motor. Thereby, the drive motor can drive the drive rod 30 to rotate.

[0075] The limiting assembly 10 is sleeved on the driving rod 30 and can rotate together with the driving rod 30. For example, if the outer surface of the driving rod 30 is a non-cylindrical structure, or the cross-section of the driving rod 30 is non-circular, the surface of the limiting assembly 10 sleeved on the driving rod 30 is adapted thereto, so that when the driving rod 30 rotates, the limiting assembly 10 can be driven to rotate together. In an optional embodiment of the present application, the outer surface of the driving rod 30 includes at least one plane 33 and at least one arc surface 34, a plane 33 and an arc surface 34 are connected, and the connection position of the plane 33 and the arc surface 34 forms an edge 35. Correspondingly, the surface of the limiting assembly 10 sleeved on the driving rod 30 is adapted thereto. The following is a detailed description in conjunction with other schematic diagrams of the limiting assembly 10.

[0076] As shown in Figure 5, Figure 5 is a schematic diagram of the structure of a limiting torsion spring of a limiting assembly according to an embodiment of the present application. The second end 32 of the driving rod 30 can pass through the limiting assembly 10, such as through the through space 500 of the limiting assembly 10. The first end 31 of the driving rod 30 cannot pass through the limiting assembly 10, such as the driving rod 30 is provided with a blocking portion 36 near the first end 31, which can prevent the limiting assembly 10 from being separated from the first end 31 of the driving rod 30.

[0077] The torsion spring 20 is sleeved on the limiting assembly 10, such as the torsion spring 20 is installed in the limiting space 400 of the limiting assembly 10. The two ends of the torsion spring 20, such as the first end 21 and the second end 22, are respectively limited by the limiting assembly 10. The torsion spring 20 also has a free end 23, and the free end 23 is connected to the vertical movable shell 1520, such as the free end 23 is connected to the vertical movable shell 1520 through the guide rod 1540. When the driving rod 30 rotates, the limiting assembly 10 is driven to rotate together. Since the first end 21 and the second end 22 of the torsion spring 20 are respectively limited by the limiting assembly 10, the torsion spring 20 is deformed, such as the free end 23 drives the guide rod 1540 and the vertical movable shell 1520 to move vertically.

[0078] The structure of the limiting torsion spring 20 of the limiting assembly 10 will be described in detail below with reference to the structural diagram of the limiting assembly 10 .

[0079] Please refer to Figures 6 and 7. Figure 6 is a three-dimensional view of the limiting assembly provided in an embodiment of the present application, and Figure 7 is a cross-sectional view of the limiting assembly shown in Figure 6. The limiting assembly 10 includes a first limiting portion 100, a second limiting portion 200, and a sleeve portion 300. The first limiting portion 100 is connected to the sleeve portion 300, and the sleeve portion 300 is connected to the second limiting portion 200. The first limiting portion 100 and the second limiting portion 200 are located at both ends of the sleeve portion 300. An end surface of the first limiting portion 100, an end surface of the second limiting portion 200, and an outer surface of the sleeve portion 300 jointly define a limiting space 400. The torsion spring 20 is installed in the limiting space 400, and the torsion spring 20 is jointly limited by an end surface of the first limiting portion 100, an end surface of the second limiting portion 200, and an outer surface of the sleeve portion 300.

[0080] The torsion spring 20 is respectively limited at both ends by the first limiting portion 100 and the second limiting portion 200. For example, the first limiting portion 100 includes a first slot 110, and the second limiting portion 200 includes a second slot 210. The torsion spring 20 is respectively fixed at both ends by the first slot 110 and the second slot 210. Specifically, the first end 21 of the torsion spring 20 is installed in the first slot 110, and the second end 22 of the torsion spring 20 is installed in the second slot 210. Thus, the limiting assembly 10 not only limits the two ends of the torsion spring 20, but also fixes the two ends of the torsion spring 20. This achieves the effect of stably limiting the torsion spring 20. Even if the torsion spring 20 begins to deform from its free end 23, the two ends of the torsion spring 20 are always limited by the limiting assembly 10. This, including the limiting and fixing, ensures that the torsion spring 20 remains stably limited, thereby improving the stability of the torsion spring 20.

[0081] In an optional embodiment of the present application, both the first slot 110 and the second slot 210 may be through holes. It should be noted that other structures are also possible for both the first slot 110 and the second slot 210, such as both being blind holes. In other optional embodiments, one of the first slot 110 and the second slot 210 is a through hole, and the other is a blind hole.

[0082] The first card slot 110 and the second card slot 210 may be arranged relative to each other, such as being symmetrical with respect to the sleeve portion 300. It is understood that the first card slot 110 and the second card slot 210 may also be staggered.

[0083] The limiting assembly 10 has a through-space 500, which includes a first through-hole 510, a second through-hole 520, and a third through-hole 530. The first through-hole 510 is provided in the first limiting portion 100, the second through-hole 520 is provided in the second limiting portion 200, and the third through-hole 530 is provided in the sleeve portion 300. Alternatively, it can be understood that the first limiting portion 100 includes the first through-hole 510, the second limiting portion 200 includes the second through-hole 520, and the sleeve portion 300 includes the third through-hole 530. The first through-hole 510, the second through-hole 520, and the third through-hole 530 are connected to define the through-space 500. The through-space 500 is used for a drive rod, such as the drive rod 30, to pass through, or in other words, the through-space 500 is used to accommodate a portion of the drive rod 30.

[0084] Exemplarily, the projection of the through-space 500 along the length direction L of the torsion spring stop assembly 10 is non-circular. Referring to FIG. 4 , the length direction L of the torsion spring stop assembly 10 is the same as the length direction L of the drive rod 30, and the length direction L of the torsion spring stop assembly 10 is the same as the length direction L of the first positioning rod 1800. The transverse direction of the cutting assembly 1500 of this embodiment of the application is the same as the length direction L of the torsion spring stop assembly 10.

[0085] The first limiting portion 100 and the sleeve portion 300 are detachably connected, and / or the second limiting portion 200 and the sleeve portion 300 are detachably connected. It is understood that at least one of the first limiting portion 100 and the second limiting portion 200 is detachably connected to the sleeve portion 300, so that when installing the torsion spring 20, it is convenient to first sleeve the torsion spring 20 on the sleeve portion 300, and then fix at least one of the first limiting portion 100 and the second limiting portion 200 to the sleeve portion 300, so as to achieve the limiting and fixing of the torsion spring 20.

[0086] In an optional embodiment of the present application, the first limiting portion 100, the sleeve portion 300, and the second limiting portion 200 can all be detachably connected, such as the first limiting portion 100 and the sleeve portion 300 can be detachably connected, and the second limiting portion 200 and the sleeve portion 300 can be detachably connected.

[0087] In an optional embodiment of the present application, the first limiting portion 100 and the sleeve portion 300 are fixedly connected, and the second limiting portion 200 and the sleeve portion 300 are detachably connected. The fixed connection between the first limiting portion 100 and the sleeve portion 300 and the detachable connection between the second limiting portion 200 and the sleeve portion 300 are described in detail below in conjunction with other structural schematic diagrams of the limiting assembly 10. It is understandable that the first limiting portion 100 and the sleeve portion 300 can be detachably connected, while the second limiting portion 200 and the sleeve portion 300 are fixedly connected.

[0088] Please refer to Figures 8 to 13, Figure 8 is an exploded schematic diagram of the limit assembly provided in an embodiment of the present application, Figure 9 is a structural schematic diagram of the first limit portion and the sleeve portion in the limit assembly provided in an embodiment of the present application, Figure 10 is a structural schematic diagram of another angle in which the first limit portion and the sleeve portion are integrally arranged in the limit assembly provided in an embodiment of the present application, Figure 11 is a structural schematic diagram of the second limit portion in the limit assembly provided in an embodiment of the present application, Figure 12 is an enlarged view of a part A in the second limit portion shown in Figure 11, and Figure 13 is a structural schematic diagram of the second limit portion in the limit assembly provided in an embodiment of the present application from another angle.

[0089] In an optional embodiment of the present application, the first position-limiting portion 100 and the sleeve portion 300 are integrally formed, and the second position-limiting portion 200 and the sleeve portion 300 are detachably connected. The sleeve portion 300 includes a main structure 310 and a connecting structure 320. One end of the main structure 310 is integrally formed with the first position-limiting portion 100, and the other end of the main structure 310 is integrally formed with the connecting structure 320. The second position-limiting portion 200 is at least partially sleeved on the connecting structure 320, and the second position-limiting portion 200 and the connecting structure 320 are fixedly connected.

[0090] For example, the connecting structure 320 defines a latching slot 330, the opening of which is located at one end of the sleeve portion 300. The second limiting portion 200 includes a latching block 220, which can be placed in the latching slot 330. When the second limiting portion 200 is sleeved on the connecting structure 320, the latching block 220 cooperates with the latching slot 330 to secure the second limiting portion 200 to the sleeve portion 300, thereby securing the second limiting portion 200 to the sleeve portion 300. The number of latching slots 330 and the number of latching blocks 220 are the same, for example, there are two latching slots 330 and two latching blocks 220. The two latching slots 330 are arranged opposite each other, and the two latching blocks 220 are arranged opposite each other, with one latching block 220 being snapped into each latching slot 330.

[0091] Part of the second limiting portion 200 is sleeved on the connecting structure 320. For example, the second limiting portion 200 includes a sleeve structure 230 and a blocking structure 240. The sleeve structure 230 is sleeved on the connecting structure 320, and the connecting structure 320 and the blocking structure 240 abut each other, such as an end of the connecting structure 320 abutting the blocking structure 240. The locking block 220 is disposed on the inner surface of the sleeve structure 230 and connected to the blocking structure 240, thereby strengthening the locking block 220 and also strengthening the sleeve structure 230 and the blocking structure 240.

[0092] In an optional embodiment of the present application, the second engaging groove 210 is located at the root of the locking block 220, thereby increasing the stability of the fixed connection between the second limiting portion 200 and the second end 22 of the torsion spring 20. It is understood that the structure of the first limiting portion 100 may be the same as or different from that of the second limiting portion 200. When the structure of the first limiting portion 100 is the same as that of the second limiting portion 200, the first engaging groove 110 of the first limiting portion 100 may be located at the root of the locking block of the first limiting portion 100.

[0093] In an optional embodiment of the present application, the inner surface of the blocking structure 240 includes a flat surface and an arcuate surface, and the top surface of the blocking block 220 is flush with the flat surface of the blocking structure 240. The inner surface of the blocking structure 240 can be understood as the surface of the limiting assembly 10 for cooperating with the driving rod 30.

[0094] For example, the limit assembly 10 includes a wall that surrounds and forms a through-space 500. Alternatively, the wall forming the through-space 500 includes at least one curved wall and one flat wall, with the curved wall and the flat wall being connected. The curved wall of the limit assembly 10 is matingly connected to the curved surface 34 of the drive rod 30, while the flat wall of the limit assembly 10 is matingly connected to the flat surface 33 of the drive rod 30. This prevents the limit assembly 10 from rotating axially on the drive rod 30, or in other words, limits the limit assembly 10 from rotating axially on the drive rod 30.

[0095] Such as two curved walls and two plane walls, two plane walls are arranged opposite to each other, two curved walls are arranged opposite to each other, and a plane wall connects the two curved walls. The embodiment of the present application is exemplified by the portion of the wall located on the second limiting portion 200. The wall 260 surrounds and forms a through space 500, or in other words, the wall 260 used to form the through space 500 includes two curved walls 262 and two plane walls 261, the two plane walls 261 are arranged opposite to each other, the two curved walls 262 are arranged opposite to each other, and a plane wall 261 connects the two curved walls 262. A plane wall 261 can be connected to the plane 33, and a curved wall 262 can be connected to a curved surface 34.

[0096] In an optional embodiment of the present application, a curved wall 262 includes a first curved segment 2621, a second curved segment 2622, and a third curved segment 2623. The first curved segment 2621 and the third curved segment 2623 connect the second curved segment 2622, and the first curved segment 2621 and the third curved segment 2623 are located on both sides of the second curved segment 2622. The second curved segment 2622 cooperates with the curved surface 34, and the curvature of the second curved segment 2622 matches the curvature of the curved surface 34. The first curved segment 2621 and the third curved segment 2623 both cooperate with the corners 35 of the drive rod 30, or in other words, the corners 35 of the drive rod 30 are placed on the first curved segment 2621 and the third curved segment 2623. The shape of the corners 35 of the drive rod 30 can be the same as or different from the shape of the first curved segment 2621 and the third curved segment 2623.

[0097] The first arc segment 2621 and the third arc segment 2623 are symmetrically arranged relative to the second arc segment 2622 .

[0098] The first arc segment 2621 and the second arc segment 2622 have different curvatures, and the third arc segment 2623 and the second arc segment 2622 have different curvatures.

[0099] It can be understood that the matching shapes of the plane wall and the arc-shaped wall can be easily applied in whole or in part to the corresponding position of the first limiting component and the corresponding position inside the sleeve portion.

[0100] It should be noted that the limiting assembly 10 is installed in the transverse moving housing 1510 of the cutting assembly, such as the cutting assembly 1500. The limiting assembly 10 can be fixed by snapping together with the transverse moving housing 1510, thereby saving additional parts to limit the limiting assembly 10 in the transverse moving housing 1510. For example, the first limiting portion 100 and / or the second limiting portion 200 can be snapped together with the transverse moving housing 1510.

[0101] In an optional embodiment of the present application, the second limiting portion 200 includes a first limiting boss 250, and the blocking structure 240 is disposed on the inner surface of the first limiting boss 250. The outer diameter of the first limiting boss 250 is larger than the outer diameter of the sleeve structure 230, thereby forming a step structure 270 between the outer surface of the first limiting boss 250 and the outer surface of the sleeve structure 230. In an optional embodiment of the present application, the outer diameter of the sleeve structure 230 is larger than the outer diameter of the main structure 310, and a step structure is also formed between the sleeve structure 230 and the main structure 310. It is understood that the first limiting boss 250 can be snap-fitted with the transverse moving shell 1510, such as by providing the transverse moving shell 1510 with a slot structure for mounting the first limiting boss 250. The step structure 270 can accommodate the structure of the transverse moving shell 1510, thereby increasing the stability of the snap-fit ​​between the second limiting portion 200 and the transverse moving shell 1510.

[0102] In an optional embodiment of the present application, the first limiting portion 100 includes a second limiting boss 120 and a third limiting boss 130. The second limiting boss 120 and the third limiting boss 130 are parallel and spaced apart from each other to form a groove 140 between the second limiting boss 120 and the third limiting boss 130. It is understandable that the first limiting portion 100 can be snap-fitted with the transverse moving shell 1510, such as a snap-fit ​​structure provided on the transverse moving shell 1510 for being installed in the groove 140 and for cooperating with the second limiting boss 120 and the third limiting boss 130, so as to achieve snap-fitting between the first limiting portion 100 and the transverse moving shell 1510.

[0103] It can be understood that the second limiting boss 120 and the third limiting boss 130 can both be snap-fitted with the transverse moving shell 1510, such as the transverse moving shell 1510 is provided with a slot structure for installing the second limiting boss 120 and / or the third limiting boss 130.

[0104] In an optional embodiment of the present application, the third limiting boss 130 is farther away from the second limiting portion 200 than the second limiting boss 120, and the outer diameter of the second limiting boss 120 is larger than the outer diameter of the third limiting boss 130. It should be noted that the outer diameter of the second limiting boss 120 may not be larger than the outer diameter of the third limiting boss 130.

[0105] In an optional embodiment of the present application, the sleeve portion 300 is a cylindrical structure, and the outer surface of the sleeve portion 300 is adapted to the torsion spring 20. For example, the torsion spring 20 has multiple elastic rings, and the multiple elastic rings can be sleeved on the outer surface of the sleeve portion 300, and can also be deformed following the free end 23 of the torsion spring 20.

[0106] The above is a detailed introduction to the torsion spring limit assembly of the workpiece processing equipment and the workpiece processing equipment provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A torsion spring limiter assembly for workpiece processing equipment, characterized in that: The limiting component comprises: A first limiting portion, comprising a first through hole and a first clamping groove, wherein the first through hole passes through the first limiting portion; A second limiting portion, comprising a second through hole and a second clamping groove, wherein the second through hole passes through the second limiting portion; and a sleeve portion, comprising a third through hole penetrating the sleeve portion, the sleeve portion connecting the first limiting portion and the second limiting portion, the first limiting portion and the second limiting portion being located at two ends of the sleeve portion, and an end surface of the first limiting portion, an end surface of the second limiting portion and an outer surface of the sleeve portion jointly defining a limiting space; The first through hole, the second through hole and the third through hole are connected to define a through space together; The limiting space is used to install a torsion spring, and two ends of the torsion spring are respectively fixed by the first clamping slot and the second clamping slot.

2. The torsion spring limiter assembly of the workpiece processing equipment according to claim 1, characterized in that: The first limiting portion and the sleeve portion are integrally arranged, and the second limiting portion and the sleeve portion are detachably connected.

3. The torsion spring limiter assembly of the workpiece processing equipment according to claim 2, characterized in that: The sleeve portion includes a main body structure and a connecting structure, one end of the main body structure is integrally arranged with the first limiting portion, and the other end of the main body structure is integrally arranged with the connecting structure; The second limiting portion is at least partially sleeved on the connecting structure.

4. The torsion spring limiter assembly of the workpiece processing equipment according to claim 3, characterized in that: The connection structure is provided with a latching groove; The second limiting portion includes a locking block. When the second limiting portion is sleeved on the connecting structure, the locking block cooperates with the locking groove to fix the second limiting portion on the sleeve portion.

5. The torsion spring limiting assembly of the workpiece processing equipment according to claim 4, characterized in that: The second limiting portion further includes a sleeve structure and a blocking structure, the positioning block is arranged on the inner surface of the sleeve structure, and the positioning block is connected to the blocking structure; The sleeve structure is sleeved on the connecting structure, and the connecting structure and the blocking structure are in abutment with each other; The inner surface of the blocking structure includes a plane and an arcuate surface, and the top surface of the blocking block is flush with the plane of the blocking structure.

6. The torsion spring limiting assembly of the workpiece processing equipment according to claim 5, characterized in that: The second limiting portion further includes a first limiting boss, and the blocking structure is arranged on the inner surface of the first limiting boss; The outer diameter of the first limiting boss is greater than the outer diameter of the sleeve structure, so as to form a step structure between the outer surface of the first limiting boss and the outer surface of the sleeve structure.

7. The torsion spring limiting assembly of the workpiece processing equipment according to claim 4, characterized in that: The second card slot is located at the root of the card block.

8. The torsion spring limiter assembly of the workpiece processing equipment according to any one of claims 1 to 7, characterized in that: The first limiting portion includes a second limiting boss and a third limiting boss. The second limiting ring boss and the third limiting boss are parallel and spaced apart from each other to form a groove between the second limiting boss and the third limiting boss.

9. The torsion spring limiting assembly of the workpiece processing equipment according to claim 8, characterized in that: The third limiting boss is farther away from the second limiting portion than the second limiting boss, and the outer diameter of the second limiting boss is greater than the outer diameter of the third limiting boss.

10. The torsion spring limiter assembly of the workpiece processing equipment according to any one of claims 1 to 7, characterized in that: The wall used to form the through space comprises at least: Two arc-shaped walls and two plane walls, the two plane walls are arranged opposite to each other, the two arc-shaped walls are arranged opposite to each other, and a plane wall connects the two arc-shaped walls.

11. The torsion spring limiting assembly of the workpiece processing equipment according to claim 10, characterized in that: One of the arcuate walls includes a first arcuate segment, a second arcuate segment and a third arcuate segment; The first arc segment and the third arc segment are connected to the second arc segment, and the first arc segment and the third arc segment are symmetrically arranged relative to the second arc segment; The first arc segment and the second arc segment have different curvatures.

12. The torsion spring limiter assembly of the workpiece processing equipment according to any one of claims 1 to 7, characterized in that: The first card slot and the second card slot are symmetrically arranged relative to the sleeve portion.

13. The torsion spring limiting assembly of the workpiece processing equipment according to any one of claims 1 to 7, characterized in that: The first card slot is a blind hole or a through hole; The second slot is a blind hole or a through hole.

14. The torsion spring limiting assembly of the workpiece processing equipment according to any one of claims 1 to 7, characterized in that: The sleeve connection portion is a cylindrical structure.

15. The torsion spring limiting assembly of the workpiece processing equipment according to claim 1, characterized in that: The first limiting portion and the sleeve portion are detachably connected, and the second limiting portion and the sleeve portion are detachably connected.

16. The torsion spring limiting assembly of the workpiece processing equipment according to claim 1, characterized in that: The projection of the through space along the length direction of the torsion spring limiting assembly is non-circular.

17. A workpiece processing device, characterized in that: It comprises a shell and a limiting assembly and a torsion spring arranged in the shell, wherein the limiting assembly is the limiting assembly according to any one of claims 1 to 16, and the torsion spring is installed in the limiting space of the limiting assembly.

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