TWM563938U - Inner clamp type knife sheath structure with safety clamping device - Google Patents

Abstract

The present invention provides an inner card type knife sleeve structure with a safety carding device, which mainly comprises: an outer sleeve; an inner sleeve, the inner sleeve is concentrically fixed in the outer sleeve, and the two Forming a shank slot; a columnar struts are disposed in the inner sleeve; a plurality of first positioning steel balls are received on the side wall of the inner sleeve; and a first spring is used for pushing the columnar struts a member, the columnar top support member pushes the first positioning steel ball to partially protrude into the shank slot; a second positioning steel ball is received on the inner wall of the outer sleeve; and a positioning rod is movably disposed on the And a second spring for pushing the positioning rod, and the buckle end of the positioning rod is blocked against the second positioning steel ball to partially protrude into the inner space of the inner sleeve.

Description

Card type knife sleeve structure with safety carding device

The present invention relates to a knife sleeve structure, and more particularly to an innovative structural type revealer of a card-type knife sleeve structure with a safety carding device.

According to the computer numerical control (CNC) type of cutting machine, it is an indispensable equipment in the current automated manufacturing industry. Due to the overall automation design requirements, the cutting machine has a tool magazine and a knife-changing device. It achieves the functions of automatic knife setting, tool change and automatic homing of the tool holder. In general, the common method of taking the knife and changing the tool is to set a plurality of shank sleeves in the tool magazine, and each of the shank sleeves is provided with a shank slot for inserting the shank. The shank sleeve and the shank are connected by a positioning mechanism, wherein the positioning mechanism means that a radial through hole communicating with the shank slot is provided in each of the shank sleeves, and the diameter is A through hole is provided with a steel ball and a spring for pushing the steel ball, and one end of the shank is provided with a groove for selectively fitting the steel ball, and the steel ball is convex or inner in the radial through hole corresponding to the position of the shank The shrinkage state locks or releases the shank between the shank and the shank sleeve.

However, the conventional tool holder sleeve has found that the following problems still exist in the actual use experience: after long-term use, the spring and the steel ball are worn, and even the spring deformation and the resilience are insufficient, thereby causing the steel ball. It can't be firmly stuck in the groove of the shank, and the shank and the shank sleeve still fall off when locked. In addition, in order to avoid the aforementioned problems, a set of positioning mechanisms is additionally provided to increase the locking relationship between the shank and the shank sleeve, and adjust the spring to a compression state, and the rebound force can make the steel ball It is tightly and firmly clamped into the groove of the shank, but when the shank is to be removed, the aforementioned resilience force must be overcome, and it is difficult to easily remove the shank from the shank sleeve.

Therefore, in view of the problems existing in the above structure, how to develop an innovative structure that is more ideal and practical, is expected by users, and is also related to the industry's efforts to develop breakthrough goals and directions.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.

The main purpose of this creation is to provide a card-type knife sleeve structure with a safety carding device. The technical problem to be solved is to develop a safety carding device which is more ideal and practical. The new structure of the inner card type knife sleeve structure is an innovative breakthrough for the goal.

The technical feature of the present invention is mainly that the inner card type knife sleeve structure with the safety carding device comprises: an outer sleeve; an inner sleeve, the inner sleeve is concentrically fixed in the outer sleeve, A shank slot is formed between the two; a columnar top support member is disposed in the inner sleeve; a plurality of first positioning steel balls are received on the side wall of the inner sleeve; and a first spring is used for pushing a columnar top support member, the columnar top support member pushes the first positioning steel ball to partially protrude into the shank slot; a second positioning steel ball is received on the inner wall of the outer sleeve; a positioning rod The utility model is disposed in the outer sleeve; and a second spring is used for pushing the positioning rod, and the buckle end of the positioning rod is blocked against the second positioning steel ball to partially protrude into the inner space of the inner sleeve.

With this innovative and unique design, this creation can be compared with the prior art, and the positioning rod and its corresponding structural design can be used to achieve accurate locking and quick release of the handle, and it is particularly practical and progressive.

Please refer to Figures 1 to 5 for a preferred embodiment of the card-type tool holder structure of the security card-making device. However, these embodiments are for illustrative purposes only and are not applicable to patent applications. The limitations of this structure. The inner card type knife sleeve structure with the safety clamping device comprises: an outer sleeve 10, a radial through hole 11, a receiving passage 12, an inner sleeve 20, a columnar top support member 30, A plurality of first positioning steel balls 31, a first spring 32, a positioning rod 40, a second positioning steel ball 41, a second spring 42 and a fixing member 43.

The front end of the outer sleeve 10 has an opening 13 formed on the outer sleeve 10 along the radial direction of the outer sleeve 10, and the radial through hole 11 One end 111 extends through the outer periphery of the outer sleeve 10, and the second end 112 of the radial through hole 11 communicates with the second receiving portion 22 of the inner sleeve 20. The inner sleeve 20 is concentrically fixed in the outer sleeve 10, and a shank slot 50 for arranging a shank 60 is formed between the inner and outer sleeves 20, 10. The slot 50 is in communication with the opening 13; the inner space of the inner sleeve 20 has a first receiving portion 21 and a second receiving portion 22; the side wall of the first receiving portion 21 is provided with a plurality of first perforations 211, each of the first through holes 211 is disposed at a distance from each other in a symmetrical manner; and the first positioning steel balls 31 are respectively accommodated in the first through holes 211.

The cylindrical top support member 30 is disposed in the inner sleeve 20, and the cylindrical top support member 30 is received at one end of the first receiving portion 21 to form a wedge-shaped flange 301. The first spring 32 is disposed in the inner sleeve 20 and pushes up the columnar top support member 30, and the wedge-shaped flange 301 of the columnar top support member 30 pushes the first positioning steel ball 31 outward. The first positioning ball 31 is partially protruded from the first through hole 211 into the shank slot 50.

The second positioning ball 41 is received in the second end 112 of the radial through hole 11 . The accommodating passage 12 is disposed in the outer sleeve 10, and the first end 121 of the accommodating passage 12 extends out of the outer periphery of the outer sleeve 10, and the second end 122 of the accommodating passage 12 extends to the outer end The inside of the outer sleeve 10 and the radial through holes 11 are in a staggered relationship with each other. In other embodiments, the receiving passage 12 can also be disposed obliquely inside the outer sleeve 10 . As shown in FIG. 10 and FIG. 11 , which are separate embodiments of the present invention, the port of the first end 121 of the receiving passage 12 may also be disposed at the front end of the outer sleeve 10 and at both sides. One.

The positioning rod 40 is disposed in the accommodating passage 12, and has a knives end portion 401, a retracting groove 402 and a protrusion 403. The knives end portion 401 is disposed corresponding to the second positioning steel ball 41. The positioning rod 40 is disposed at a position of the rod 40 adjacent to the end portion 401 of the blade, and the protrusion 403 is located at an end of the positioning rod 40 away from the end 401 of the blade And extending to the port of the first end 121 of the accommodating channel 12; the fixing member 43 is disposed at the port of the first end 121 of the accommodating channel 12 for limiting the positioning rod 40 in the accommodating channel The range of movement in 12. The second spring 42 is disposed in the accommodating passage 12 and pushes the positioning rod 40, and the knives end portion 401 of the positioning rod 40 is blocked against the second positioning steel ball 41, so that the second positioning steel ball 41 is partially protruded from the port of the second end 112 of the radial through hole 11 to the second receiving portion 22 of the inner sleeve 20; when the protrusion 403 of the positioning rod 40 is pressed, the positioning rod 40 is facing the same The second end 122 of the channel 12 is moved to displace the second positioning ball 41 in the retraction groove 402. Furthermore, the guiding rod 40 is further provided with a guiding plane 404 adjacent to the opposite side of the blade end 401, and the guiding portion 44 is disposed adjacent to the first end 111 of the radial through hole 11 , the guiding member The 44 is abutted against the guiding plane 404, so as to orient and guide the positioning rod 40, so as to ensure that the knife end 401 and the retracting groove 402 of the positioning rod 40 can accurately correspond to the second positioning steel ball when the positioning rod 40 is actuated. 41.

With the above structural composition design, the operation of the present creation is explained as follows: First, as shown in Figures 6 and 7, when the user mounts the handle 60 (not shown) in the present creation, the positioning is pressed. a protrusion 403 of the rod 40, and the positioning rod 40 moves toward the second end 122 of the accommodating passage 12, so that the second positioning ball 41 is received in the retracting groove 402, and the second positioning is released. Steel ball 41. Then, as shown in FIG. 8, when the shank 60 is inserted into the shank slot 50, the outer edge of the shank 60 will press the first positioning steel ball 31 to move toward the first accommodating portion 21 of the inner sleeve 20. And the first positioning steel ball 31 moves in the direction of the second accommodating portion 22 of the inner sleeve 20 corresponding to the pushing columnar struts 30; and after the shank 60 passes the first positioning steel ball 31, the first spring 32 is Recovering the force, pushing the columnar struts 30 toward the first accommodating portion 21 of the inner sleeve 20 to reset the columnar struts 30 and the first positioning balls 31, that is, the first positioning The steel ball 31 partially protrudes from the first through hole 211 into the shank slot 50. Finally, the urging force of the protrusion 403 pressing the positioning rod 40 is released, and the positioning rod 40 is reset by the second spring 42 returning force to push the positioning rod 40 in the direction of the first end 121 of the accommodating passage 12. And the blade end portion 401 of the positioning rod 40 is blocked against the second positioning ball 41, and the second positioning ball 41 is also reset, and the columnar top support member 30 is stably positioned, as shown in FIGS. 4 and 5. . Thereby, the first positioning steel ball 31 is clamped to the shank 60, so the present invention has the effect of accurately locking the shank 60, as shown in FIG.

In addition, when the shank 60 is to be removed, the above steps are reversely operated to achieve the effect of quickly releasing the shank 60.

As shown in FIG. 9 , in another embodiment of the present invention, the main difference from the preferred embodiment is that the columnar top support member 30 is adjacent to one end of the second receiving portion 22 of the inner sleeve 20 and is embedded. The fitting portion 302 is configured to hold the second positioning steel ball 41.

Efficacy description: The "cardo-type knife sleeve structure with safety carding device" disclosed in the present invention mainly comprises the outer sleeve, the inner sleeve, the columnar top support member, a first spring, and the first Innovative unique structural types and technical features of a radial through hole, a second positioning steel ball, a positioning rod, a receiving passage, a fixing member and a second spring, etc., so that the creation is compared with [previous art] Knowing the structure, the 定位 can use the positioning rod and its corresponding structural design to achieve accurate locking and quick release of the shank, and is particularly practical and progressive.

10‧‧‧Outer sleeve
11‧‧‧radial through hole
12‧‧‧Enclosed passage 111, 121‧‧‧ first end 112, 122‧‧‧ second end
13‧‧‧ openings
20‧‧‧Inner sleeve
21‧‧‧First Housing Department
211‧‧‧First perforation
22‧‧‧Second Accommodation
30‧‧‧Cylindrical support members
301‧‧‧Wedge flange
302‧‧‧Mate
31‧‧‧First positioning steel ball
32‧‧‧First spring
40‧‧‧ Positioning rod
401‧‧‧Knife end
402‧‧‧Retraction groove
403‧‧‧Bump
404‧‧‧ guiding plane
41‧‧‧Second positioning steel ball
42‧‧‧Second spring
43‧‧‧Fixed parts
44‧‧‧Guide
50‧‧‧Knife socket
60‧‧‧shank

Figure 1 is a combined perspective view of a preferred embodiment of the present invention. Fig. 2 is an exploded perspective view of Fig. 1. Figure 3 is a cross-sectional view of the combination of Figure 1. Figure 4 is a cross-sectional view of another perspective of Figure 1. Fig. 5 is a partial cross-sectional view showing another perspective of Fig. 1. Figure 6 is a diagram of the action of Figure 3. Figure 7 is a partial cross-sectional view showing another perspective of Figure 6. Figure 8 is a schematic view of the shank of Figure 6 placed in the shank slot. Figure 9 is a schematic illustration of another embodiment of the present creation. Figure 10 is a schematic illustration of another variation of the present invention. Figure 11 is a schematic illustration of an additional embodiment of the present creation.

Claims (5)

An inner card type knife sleeve structure with a safety carding device, comprising: an outer sleeve having an opening at a front end thereof; an inner sleeve fixed concentrically in the outer sleeve, and inside and outside Forming a shank slot for a shank sleeve between the sleeves, the shank slot is in communication with the opening; the inner space of the inner sleeve has a first accommodating portion and a second accommodating portion; The first accommodating portion is provided with a plurality of first through holes, each of the first through holes being spaced apart from each other in a symmetrical manner; each of the first through holes is correspondingly accommodating a first positioning steel ball; Is disposed in the inner sleeve, the cylindrical top support member is disposed at one end of the first receiving portion, and the collar is provided with a wedge-shaped flange; a first spring is disposed in the inner sleeve and is pushed The cylindrical top support member, and the wedge-shaped flange of the cylindrical top support member pushes the first positioning steel ball outwardly, so that the first positioning steel ball portion protrudes from the first through hole into the shank slot; a radial through hole formed on the outer sleeve along a radial direction of the outer sleeve, and the radial through hole The first end extends through the outer periphery of the outer sleeve, and the second end of the radial through hole communicates with the second receiving portion of the inner sleeve; a second positioning steel ball is received in the radial direction a second end of the through hole; an accommodating passage is disposed in the outer sleeve, the first end of the accommodating passage extends out of the outer circumference of the outer sleeve, and the second end of the accommodating passage extends to The inside of the outer sleeve and the radial through hole are in a staggered relationship with each other; a positioning rod is disposed in the receiving passage, and has a buckle end, a retracting groove and a protruding post. The knives end portion is disposed on the positioning rod shaft corresponding to the second positioning steel ball, and the retracting groove is disposed at a position of the positioning rod shaft adjacent to the end of the knives, the protrusion is away from the positioning rod One end of the end of the knives extends outwardly and protrudes from the port at the first end of the accommodating channel; a fixing member is disposed at the port of the first end of the accommodating channel for limiting the positioning rod a moving range in the channel; and a second spring disposed in the receiving channel and pushing the positioning rod, and the clamping end of the positioning rod Blocking the second positioning steel ball, the second positioning steel ball partially protrudes from the port of the second end of the radial through hole to the second receiving portion of the inner sleeve; and when the protruding post of the positioning rod is pressed, The positioning rod moves toward the second end of the receiving passage, so that the second positioning steel ball is received in the retracting groove. The inner card type knife sleeve structure of the safety carding device according to the first aspect of the invention, wherein the positioning rod is further provided with a guiding plane adjacent to the opposite side of the buckle end portion, and the radial through hole A guiding member is disposed adjacent to the first end thereof, and the guiding member abuts against the guiding plane. The inner card type knife sleeve structure with a safety carding device according to claim 1 or 2, wherein the receiving passage is disposed obliquely inside the knife sleeve. The inner card type knife sleeve structure of the safety carding device according to the third aspect of the invention, wherein the port of the first end of the accommodating channel is disposed at the front side end and the two side ends of the outer sleeve. By. The inner card type knife sleeve structure of the safety carding device according to the fourth aspect of the invention, wherein the columnar top support member is provided with a fitting portion adjacent to one end of the second receiving portion of the inner sleeve. The fitting portion is for the second positioning steel ball to be jammed.