Knife pouch

Abstract

The knife pouch comprises a shell and a knife clamping and fixing assembly fixed in the shell, the knife clamping and fixing assembly comprises a barrel body, n balls, a spring and an abutting piece, through holes are formed in the upper end of the barrel body in the circumferential direction at equal intervals, the n balls are arranged in the through holes in a one-to-one mode, n is larger than or equal to 3, and n is larger than or equal to 2. The abutting piece and the spring are both movably arranged on the barrel, the spring is arranged below the abutting piece, and the abutting piece abuts against the n balls under the action of the spring so that the n balls can abut against and fix a cutter inserted into the shell. The utility model further discloses a tool changing device. The knife pouch mainly comprises the shell and the knife clamping and fixing assembly fixed in the shell, the knife clamping and fixing assembly comprises the barrel, the abutting piece, the balls and the springs, the number of parts is small, the structure is simple, and the number of assembling and disassembling procedures is small.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic tool changing devices, in particular to a tool sleeve. Background Art

[0002] The cutting process of machine tools is ever-changing. A part may also use many kinds of tools to perform various cutting processes such as drilling, milling, and boring. As the core functional component of the machine tool, the tool magazine is used to store various tools required for the processing process. The tool magazine can quickly and accurately send the tools to be used to the tool change position according to the program instructions, and accept the program instructions to put the used tools back to their original positions. The tool magazine consists of two parts: mechanical and control. According to the program control, the CNC machine tool can meet the processing needs of various different processes through one clamping.

[0003] The tool holder is a basic configuration device of the tool magazine. It plays the role of carrying and fixing the cutting tools for production and processing. It is beneficial to shorten the processing time, reduce production costs, and provide a good guarantee for the automated operation of the machine tool tool magazine system.

[0004] The Chinese utility model patent with publication number CN220197000U discloses a quick tool sleeve structure that can quickly replace tools, including an outer sleeve, an inner sleeve, an adjusting nut, a compression spring, a locking ring, multiple ball bearings, a drill screw, a spindle connecting rod and a spindle, etc. The structure is complex and there are many assembly and disassembly procedures. Utility Model Content

[0005] In order to solve at least one technical problem in the prior art, the utility model provides a knife sheath.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a tool sleeve, including an outer shell and a tool clamping assembly fixed in the outer shell, the tool clamping assembly including a cylinder, n balls, a spring and a supporting member, the upper end of the cylinder is provided with a through hole at equal intervals along the circumferential direction, the n balls are arranged one-to-one in the through holes, wherein n≥3, the supporting member and the spring are both movably arranged on the cylinder and the spring is arranged below the supporting member, and the supporting member is respectively in contact with the n balls under the action of the spring so that the n balls can support and fix the tool inserted into the outer shell.

[0007] Furthermore, the shell has an installation cavity, the cylinder is fixed in the installation cavity, and a locking space for accommodating and locking the tool is formed between the outer wall of the cylinder and the inner wall of the installation cavity. The n balls enter the locking space under the abutment of the abutment member and jointly abut and fix the tool with the inner wall of the installation cavity.

[0008] Further, the tool comprises a handle, wherein a second cavity near the end of the handle and a first cavity located above the second cavity are arranged in the handle, the inner diameter of the second cavity is smaller than the inner diameter of the first cavity, and a portion where the first cavity and the second cavity are connected has a butting surface;

[0009] When the tool is inserted into the housing, the tool handle is located in the locking space, and the n balls abut against the abutting surface.

[0010] Furthermore, the distance between the through holes gradually increases from the outer wall to the inner wall of the cylinder, and the minimum diameter of the through holes is smaller than the diameter of the ball.

[0011] Furthermore, the abutting member includes an abutting portion, the outer peripheral surface of the abutting portion is an arc-shaped abutting surface, the arc-shaped abutting surface abuts against the ball, and the radius of the arc-shaped abutting surface gradually decreases from bottom to top.

[0012] Furthermore, the abutting member further includes a cylindrical mounting portion connected below the abutting portion, and a diameter of the mounting portion is equal to a maximum diameter of the abutting portion.

[0013] Further, the cylinder is fixed in the shell by bolts; or

[0014] The cylinder and the shell are integrally formed by injection molding.

[0015] Furthermore, when the cylinder is fixed in the housing by bolts, the housing is provided with a through hole and a sink in sequence at the lower end of the installation cavity, and the sink is connected with the installation cavity through the through hole;

[0016] A threaded connection hole is opened on the bottom wall of the cylinder, and the bolt is arranged in the through hole and the threaded connection hole.

[0017] Furthermore, one side of the lower end of the shell extends outward to form a connecting portion, and the end of the connecting portion has two connecting ears arranged in parallel;

[0018] The knife sleeve also includes a connecting component rotatably connected to the knife disc, and the connecting component is arranged between the two connecting ears.

[0019] Furthermore, the two connecting ears are correspondingly provided with shaft connecting holes, the connecting assembly comprises a connecting shaft and a roller sleeved on the connecting shaft, and both ends of the connecting shaft are arranged in the shaft connecting holes.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The tool sheath of the utility model mainly comprises a shell and a tool fixing assembly fixed in the shell, wherein the tool fixing assembly comprises a cylinder, a holding piece, a plurality of balls and a spring, has few parts, a simple structure and few assembly and disassembly processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the knife sheath in the first embodiment of the utility model;

[0023] Figure 2 It is a cross-sectional view of the knife sleeve in the first embodiment of the utility model;

[0024] Figure 3 It is a three-dimensional diagram of the abutting member in the first embodiment of the utility model;

[0025] Figure 4 This is a cross-sectional view of the tool after being inserted into the tool sleeve in the first embodiment of the utility model;

[0026] Figure 5 It is a three-dimensional diagram of the knife sheath in the second embodiment of the utility model;

[0027] Figure 6 It is a cross-sectional view of the knife sleeve in the second embodiment of the utility model;

[0028] Figure 7 This is a cross-sectional view of the tool in the second embodiment of the utility model after being inserted into the tool sleeve. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments 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 ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0033] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] Embodiment 1

[0036] Reference Figure 1 The utility model provides a tool sheath which can be installed on a tool disc of a tool magazine for loading tools. The tool sheath comprises a shell 1 and a tool clamping assembly 2. The tool clamping assembly 2 is fixed in the shell 1 and is used to fix the tool 8 in the shell 1 to prevent the tool 8 from detaching from the shell 1 without force.

[0037] Reference Figure 2 The tool fixing assembly 2 includes a cylinder 21, a support member 22, n balls 23 and a spring 24. The upper end of the cylinder 21 is provided with n through holes 210 at equal intervals along the circumferential direction, and the n balls 23 are arranged in the n through holes 210 in a one-to-one manner, wherein n≥3. The support member 22 and the spring 24 are both movably arranged in the cylinder 21 and the spring 24 is arranged below the support member 22. Under the action of the spring 24, the support member 22 is respectively in contact with the n balls 23 so that the n balls 23 can support and fix the tool 8 inserted into the housing 1.

[0038] Furthermore, an installation cavity 10 is provided in the outer shell 1, and the cylinder 21 is fixed in the installation cavity 10. There is a certain gap between the outer wall of the cylinder 21 and the inner wall of the installation cavity 10, so that a locking space 100 for accommodating and locking the tool 8 is formed between the outer wall of the cylinder 21 and the inner wall of the installation cavity 10. The n balls 23 enter the locking space 100 under the support of the support member 22 and jointly support and fix the tool 8 with the inner wall of the installation cavity 10, thereby preventing the tool 8 from detaching from the tool.

[0039] Reference Figure 4 The tool 8 includes a tool body 81, a tool seat 82 and a tool handle 83, which are connected in sequence as a whole. A cavity is arranged in the tool handle 83, and the cavity includes a first cavity 831 and a second cavity 832, wherein the second cavity 832 is arranged near the end of the tool handle 83, the second cavity 832 is connected to the first cavity 831 and is located below the first cavity 831, the inner diameter of the second cavity 832 is smaller than the inner diameter of the first cavity 831, and the portion where the first cavity 831 and the second cavity 832 are connected has a butting surface 830. When the tool 8 is inserted into the housing 1, the tool handle 83 is located in the locking space 100, and the n balls 23 are respectively butted against the butting surfaces 830.

[0040] Preferably, the abutting surface 830 is an inclined surface.

[0041] The utility model sets a tool clamping assembly 2 in the shell 1 and sets a cavity in the tool handle 83. When the tool 8 is inserted into the shell 1, the tool handle 83 can be inserted between the shell 1 and the cylinder 21, and n balls 23 are respectively abutted on the abutting surfaces 830 of the tool handle 83, so that the tool 8 is fixed in the tool sleeve 1. At the same time, a supporting member 22 is set below the ball 23. The supporting member 22 has an upward movement tendency under the action of the spring 24, so that the ball 23 is not easy to move.

[0042] Furthermore, the through hole 210 gradually increases from the outer wall to the inner wall of the cylinder 21 , and the minimum diameter of the through hole 210 is smaller than the diameter of the ball 23 , so that the ball 23 will not escape from the through hole 210 from the outer wall of the cylinder 21 .

[0043] Reference Figure 3 The abutting member 22 includes an abutting portion 212 , the outer peripheral surface of the abutting portion 212 is an arcuate abutting surface 2120 , the arcuate abutting surface 2120 abuts against the ball 23 , and the radius of the arcuate abutting surface 2120 gradually decreases from bottom to top.

[0044] Furthermore, the abutting member 22 further includes a cylindrical mounting portion 211 connected below the abutting portion 212 , and a diameter of the mounting portion 211 is equal to a maximum diameter of the abutting portion 212 .

[0045] Furthermore, the cylinder 21 is fixed in the housing 1 by bolts 5 .

[0046] Specifically, the cylinder 21 has a through hole 12 and a recess 11 at the lower end of the installation cavity 10, and the recess 11 is connected to the installation cavity 10 through the through hole 12. The bottom wall of the cylinder 21 has a threaded connection hole, and the bolt 5 is disposed in the through hole 12 and the threaded connection hole.

[0047] Furthermore, one side of the lower end of the shell 1 extends outward to form a connecting portion 3, and the end of the connecting portion 3 has two parallel connecting ears 31. The tool sleeve also includes a connecting component 4 rotatably connected to the tool disc, and the connecting component 4 is arranged between the two connecting ears 31.

[0048] Furthermore, the two connecting ears 31 are correspondingly provided with shaft connecting holes, and the connecting assembly 4 includes a connecting shaft 41 and a roller 42 sleeved on the connecting shaft 41, and both ends of the connecting shaft 41 are arranged in the shaft connecting holes.

[0049] Furthermore, the connecting portion 3 is provided with a pin hole 30 at an angle below the connecting ear 31 for installing a pin shaft.

[0050] Furthermore, a buffer member 7 is provided at the bottom of the housing 1 .

[0051] Embodiment 2

[0052] Reference Figures 5 to 7 The utility model also provides a tool sheath, including a shell 1 and a tool fixing assembly 2, wherein the tool fixing assembly 2 is fixed in the shell 1 and is used to fix the tool 8 in the shell 1 to prevent the tool 8 from detaching from the shell 1 without force.

[0053] The tool fixing assembly 2 includes a cylinder 21, a support member 22, n balls 23 and a spring 24. The upper end of the cylinder 21 is provided with n through holes 210 at equal intervals along the circumferential direction, and the n balls 23 are arranged in the n through holes 210 in a one-to-one manner, where n ≥ 3. The support member 22 and the spring 24 are both movably arranged in the cylinder 21 and the spring 24 is arranged below the support member 22. Under the action of the spring 24, the support member 22 is respectively in contact with the n balls 23 so that the n balls 23 can support and fix the tool 8 inserted into the housing 1.

[0054] Furthermore, an installation cavity 10 is provided in the outer shell 1, and the cylinder 21 is fixed in the installation cavity 10. There is a certain gap between the outer wall of the cylinder 21 and the inner wall of the installation cavity 10, so that a locking space 100 for accommodating and locking the tool 8 is formed between the outer wall of the cylinder 21 and the inner wall of the installation cavity 10. The n balls 23 enter the locking space 100 under the support of the support member 22 and jointly support and fix the tool 8 with the inner wall of the installation cavity 10, thereby preventing the tool 8 from detaching from the tool.

[0055] The tool 8 includes a tool body 81, a tool seat 82 and a tool handle 83, which are connected in sequence as a whole. A cavity is arranged in the tool handle 83, and the cavity includes a first cavity 831 and a second cavity 832, wherein the second cavity 832 is arranged near the end of the tool handle 83, the second cavity 832 is connected to the first cavity 831 and is located below the first cavity 831, the inner diameter of the second cavity 832 is smaller than the inner diameter of the first cavity 831, and the portion where the first cavity 831 and the second cavity 832 are connected has a butting surface 830. When the tool 8 is inserted into the housing 1, the tool handle 83 is located in the locking space 100, and the n balls 23 are respectively butted against the butting surfaces 830.

[0056] Preferably, the abutting surface 830 is an inclined surface.

[0057] The utility model sets a tool clamping assembly 2 in the shell 1 and sets a cavity in the tool handle 83. When the tool 8 is inserted into the shell 1, the tool handle 83 can be inserted between the shell 1 and the cylinder 21, and n balls 23 are respectively abutted on the abutting surfaces 830 of the tool handle 83, so that the tool 8 is fixed in the tool sleeve 1. At the same time, a supporting member 22 is set below the ball 23. The supporting member 22 has an upward movement tendency under the action of the spring 24, so that the ball 23 is not easy to move.

[0058] Furthermore, the through hole 210 gradually increases from the outer wall to the inner wall of the cylinder 21 , and the minimum diameter of the through hole 210 is smaller than the diameter of the ball 23 , so that the ball 23 will not escape from the through hole 210 from the outer wall of the cylinder 21 .

[0059] The abutting member 22 includes an abutting portion 212 , the outer peripheral surface of the abutting portion 212 is an arcuate abutting surface 2120 , the arcuate abutting surface 2120 abuts against the ball 23 , and the radius of the arcuate abutting surface 2120 gradually decreases from bottom to top.

[0060] Furthermore, the abutting member 22 further includes a cylindrical mounting portion 211 connected below the abutting portion 212 , and a diameter of the mounting portion 211 is equal to a maximum diameter of the abutting portion 212 .

[0061] The outer shell 1 is provided with an inwardly protruding limit ring 14 at the lower end of the installation cavity 10, and the outer wall of the lower end of the cylinder 21 is provided with a groove 121 corresponding to the limit ring 14. The limit ring 14 is configured in the groove 121. The cylinder 21 is fixed in the outer shell 1 through the configuration of the limit ring 14 and the groove 121.

[0062] Furthermore, one side of the lower end of the shell 1 extends outward to form a connecting portion 3, and the end of the connecting portion 3 has two parallel connecting ears 31. The tool sleeve also includes a connecting component 4 rotatably connected to the tool disc, and the connecting component 4 is arranged between the two connecting ears 31.

[0063] Furthermore, the two connecting ears 31 are correspondingly provided with shaft connecting holes, and the connecting assembly 4 includes a connecting shaft 41 and a roller 42 sleeved on the connecting shaft 41, and both ends of the connecting shaft 41 are arranged in the shaft connecting holes.

[0064] Furthermore, the connecting portion 3 is provided with a pin hole 30 at an angle below the connecting ear 31 for installing the pin shaft 6 .

[0065] Furthermore, a buffer member 7 is provided at the bottom of the housing 1 .

[0066] As a preferred embodiment, the barrel 21 and the housing 1 are integrally formed by injection molding.

[0067] As another preferred embodiment, the shell 1 is cylindrical, and the shell 1 includes a first shell and a second shell, one side of the first shell is hinged to one side of the second shell, and the other side of the first shell is fixed to the other side of the second shell by bolts.

[0068] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A knife sheath, characterized in that: The invention comprises a shell (1) and a tool fixing assembly (2) fixed in the shell (1), wherein the tool fixing assembly (2) comprises a cylinder (21), n ​​balls (23), a spring (24) and a supporting member (22); the upper end of the cylinder (21) is provided with n through holes (210) at equal intervals in the circumferential direction; the n balls (23) are arranged one-to-one in the n through holes (210), wherein n≥3; the supporting member (22) and the spring (24) are both movably arranged in the cylinder (21) and the spring (24) is arranged below the supporting member (22); and the supporting member (22) is respectively in contact with the n balls (23) under the action of the spring (24) so ​​that the n balls (23) can support and fix the tool (8) inserted into the shell (1).

2. The knife sheath according to claim 1, characterized in that: The housing (1) has a mounting cavity (10), the cylinder (21) is fixed in the mounting cavity (10), a locking space (100) for accommodating and locking the tool (8) is formed between the outer wall of the cylinder (21) and the inner wall of the mounting cavity (10), and the n balls (23) enter the locking space (100) under the abutment of the abutment member (22) and abut and fix the tool (8) together with the inner wall of the mounting cavity (10).

3. The knife sheath according to claim 2, characterized in that: The tool (8) comprises a handle (83), wherein a second cavity (832) close to the end of the handle (83) and a first cavity (831) located above the second cavity (832) are arranged in the handle (83), the inner diameter of the second cavity (832) is smaller than the inner diameter of the first cavity (831), and a portion where the first cavity (831) and the second cavity (832) are connected has a supporting surface (830); When the tool (8) is inserted into the housing (1), the tool handle (83) is located in the locking space (100), and the n balls (23) abut against the abutting surface (830).

4. The knife sheath according to claim 1, characterized in that: The through holes (210) gradually increase in size from the outer wall to the inner wall of the cylinder (21), and the minimum diameter of the through holes (210) is smaller than the diameter of the ball (23).

5. The knife sheath according to claim 1, characterized in that: The abutting member (22) comprises an abutting portion (212), the outer peripheral surface of the abutting portion (212) is an arc-shaped abutting surface (2120), the arc-shaped abutting surface (2120) abuts against the ball (23), and the radius of the arc-shaped abutting surface (2120) gradually decreases from bottom to top.

6. The knife sheath according to claim 5, characterized in that: The abutting member (22) further comprises a cylindrical mounting portion (211) connected below the abutting portion (212); the diameter of the mounting portion (211) is equal to the maximum diameter of the abutting portion (212).

7. The knife sheath according to claim 2, characterized in that: The cylinder (21) is fixed in the housing (1) by means of bolts (5); or The cylinder (21) and the shell (1) are integrally formed by injection molding.

8. The knife sheath according to claim 7, characterized in that: When the cylinder (21) is fixed in the housing (1) by means of bolts (5), the housing (1) is provided with a through hole (12) and a sink (11) in sequence at the lower end of the installation cavity (10), and the sink (11) is communicated with the installation cavity (10) through the through hole (12); A threaded connection hole is provided on the bottom wall of the cylinder (21), and the bolt (5) is arranged in the through hole (12) and the threaded connection hole.

9. The knife sheath according to any one of claims 1 to 8, characterized in that: One side of the lower end of the housing (1) extends outward to form a connecting portion (3), and the end of the connecting portion (3) has two connecting ears (31) arranged in parallel; The knife sleeve further comprises a connecting assembly (4) rotatably connected to the knife disc, wherein the connecting assembly (4) is arranged between the two connecting ears (31).

10. The knife sheath according to claim 9, characterized in that: The two connecting ears (31) are correspondingly provided with shaft connecting holes, the connecting assembly (4) comprises a connecting shaft (41) and a roller (42) sleeved on the connecting shaft (41), and both ends of the connecting shaft (41) are arranged in the shaft connecting holes.

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