TWI803235B - Axially telescopic chamfering tool holder - Google Patents

Abstract

This creation is a chamfering knife rod, which includes a rod sleeve, a stopper, an inner rod assembly, a first spring space, a second spring space and an elastic part; Perforation; the inner rod assembly is detachably inserted into the rod sleeve, and can move axially relative to the rod sleeve; the first and second spring spaces are surrounded by the rod sleeve, the stopper and the inner rod assembly, and the perforation connects the first and second Spring space; the elastic member can be selectively accommodated in the first spring space or the second spring space; compared with the existing chamfering tool holder which can only be used in a single occasion, the chamfering tool holder of this creation can prevent the chamfering knife from the workpiece When the pulling force or the pushing force is selected, the elastic member can be accommodated in the first or second spring space to counteract the pulling force or the pushing force respectively, and there is no need to prepare another tool holder for different usage occasions.

Description

Axially telescopic chamfering tool holder

This creation relates to a tool holder, especially a kind of chamfering cutter holder with axial expansion and contraction.

The cutter bar is a tool used to install various types of cutters for different processing. Among them, the cutter bar used to install the chamfering knife can be called a chamfering tool bar; some of the existing chamfering tool bars have the characteristics of axial expansion and contraction; During processing, when the tool receives unexpected external force due to the uneven surface of the workpiece, the external force can be offset by the expansion and contraction of the chamfering tool holder, so that the tool is protected from damage.

However, the existing chamfering tool holder can only be used in a single occasion; The applied chamfering tool holder is usually provided with a compression spring inside, and the above-mentioned thrust is offset by the compression of the compression spring; and in the occasion shown in Figure 5, a pulling force caused by a workpiece 80B moves the tool away from the chamfering If the tool rod is pulled in the direction of the tool rod, it is necessary to use another chamfered tool rod with a tension spring or a compression spring inside but with a completely different internal structure configuration to offset the above pulling force; the user must follow the above two It is more troublesome to prepare and replace different chamfering tool holders for these occasions to offset the above-mentioned pulling or pushing force; it can be seen that there is a kind of chamfering tool holder that can be used in the above two occasions. necessity.

In order to solve the problem in the prior art that users have to prepare and replace different chamfering tool holders according to the above two occasions, the purpose of this creation is to propose a tool that can be used when the workpiece generates an external force that pulls or pushes against the tool. Axially telescopic chamfering tool holder.

The axially telescopic chamfering tool holder proposed by this creation to solve technical problems includes: A rod sleeve, which is hollow and contains an inner peripheral surface; a stopper, which is ring-shaped, arranged on the inner peripheral surface of the rod sleeve, and forms a perforation around it; An inner rod assembly, which is detachably arranged in the rod sleeve, can move axially relative to the rod sleeve, and includes a movable rod, which is inserted into the rod sleeve, and includes a top and a bottom opposite to each other in the axial direction; and A pressing rod, which passes through the through hole, and includes a top end and a bottom end opposite to each other in the axial direction, and a resisting block; the bottom end of the pressing rod is detachably combined with the top of the movable rod; the resisting The block is located at the top of the strut; A first spring space, which is surrounded by the rod sleeve, the stopper and the top of the movable rod; A second spring space, which is surrounded by the rod sleeve, the stopper and the abutting block of the pressure rod; the through hole communicates the second spring space with the first spring space; an elastic member, which is arranged in the axial direction, and can be selectively accommodated in the first spring space or the second spring space; the opposite ends of the elastic member respectively abut against the inner rod assembly and the stopper; and A tool clamping assembly is combined with the bottom of the movable rod.

Said axially telescopic chamfering tool bar, wherein said movable rod includes a long hole; the long hole is located between the top and the bottom of the movable rod, radially runs through the movable rod; the chamfering knife The rod also includes a combination pin, which can be disassembled and installed radially on the rod sleeve, passes through the long hole of the movable rod, and can move along the long hole.

Said axially telescopic chamfering tool rod, wherein said rod sleeve includes a screw hole and a countersunk hole, both the screw hole and the countersunk hole radially pass through the rod sleeve, and are respectively located at the The opposite sides of the rod sleeve; the joint pin includes a pin head and a screw part, the pin head and the screw part are respectively located at the opposite ends of the joint pin, and the pin head is accommodated in the counterbore of the rod sleeve , the screw part is screwed into the screw hole of the rod sleeve.

The axially telescopic chamfering tool bar, wherein the movable rod includes a screw hole, and the screw hole is axially arranged on the top of the movable rod; The bottom end of the pressure rod is provided with an external thread, and is screwed into the screw hole of the movable rod.

In the axially telescopic chamfering tool holder, the elastic member is accommodated in the first spring space, and the opposite ends of the elastic member respectively abut against the top of the movable rod and the stopper.

The axially telescopic chamfering tool bar, wherein the movable rod includes a groove, the groove is located on the top of the movable rod, and faces the stopper; the opposite ends of the elastic member respectively abut against The groove bottom of the groove and the stopper.

In the axially telescopic chamfering tool holder, the elastic member is accommodated in the second spring space, and the opposite ends of the elastic member respectively abut against the abutting block and the stopper of the pressing rod.

In the axially telescopic chamfering tool holder, the elastic member is a compression spring.

The effect of the technical means of this creation can be improved: the chamfering tool holder of this creation can accommodate the elastic member in the first spring by selecting when the workpiece causes a thrust or a pulling force on the chamfering knife in different directions. space or the second spring space to correspond to the push or pull force, and use the elastic member to counteract the push or pull force. Compared with the existing chamfering tool holder which can only be used in a single use occasion, the chamfering tool holder of this creation can be applied to the workpiece It can be used in the situation where the tool causes pulling force or pushing force, and there is no need to prepare another tool holder for different usage situations.

In order to understand the technical characteristics and practical effects of this creation in detail, and to realize it according to the content of the creation, the preferred embodiment shown in the figure is further described in detail as follows:

The axially telescopic chamfering tool holder 10 of the preferred embodiment of the invention, as shown in Figure 1 and Figure 5, can be used to offset a workpiece 80A/80B against a chamfering tool 20A/20B Cause a thrust or a pulling force in different directions; Block 12, an inner rod assembly including a movable rod 13 and a pressing rod 14, a first spring space S1, a second spring space S2, an elastic member 15, a coupling pin 16 and a tool clamping assembly 17 .

As shown in Figure 3 and Figure 7, the rod sleeve 11 is long and hollow, the rod sleeve 11 includes an inner peripheral surface, a countersunk hole 111 and a screw hole 112; the countersunk hole 111 and the screw hole 112 are arranged radially through the rod sleeve 11, and are located on opposite sides of the rod sleeve 11; 121.

As shown in Figure 2, Figure 4, Figure 6 and Figure 8, the inner rod assembly is arranged in the rod sleeve 11, and can move relative to the rod sleeve 11 in the axial direction; the inner rod assembly includes the movable rod 13 and The pressing rod 14, as shown in Figures 3 and 7, the movable rod 13 includes a top and a bottom opposite to each other in the axial direction, and a long hole 131 and a groove 132; as shown in Figures 2 and 6, The movable rod 13 is inserted into the rod sleeve 11, the top of the movable rod 13 is located in the rod sleeve 11, and the bottom of the movable rod 13 is combined with the tool clamping assembly 17; the long hole 131 is located in the movable rod 13 The movable rod 13 extends radially between the top and the bottom of the movable rod 13 ; the groove 132 is located at the top of the movable rod 13 and faces the block 12 .

As shown in Figure 4 and Figure 8, the pressure rod 14 is located in the rod sleeve 11, and penetrates the through hole 121, as shown in Figure 3 and Figure 7, the pressure rod 14 includes a top end and a The bottom end, and a block 141 and a joint portion 142; the block 141 is located at the top of the pressure rod 14; the joint portion 142 of the pressure rod 14 is located at the bottom end of the pressure rod 14, and is provided with external threads, the Movable bar 13 also comprises a screw hole, and this screw hole is arranged on the top of this movable bar 13 axially, and the joint 142 of this pressure bar 14 is screwed into the screw hole of this movable bar 13, makes the bottom of this pressure bar 14 and The top of the movable rod 13 is detachably connected.

As shown in Figure 2, Figure 4, Figure 6 and Figure 8, the first spring space S1 and the second spring space S2 are located in the rod sleeve 11 and are arranged axially, the first spring space S1 and the second spring space S1 The two spring spaces S2 are separated by the block 12, and the perforation 121 communicates with the first spring space S1 and the second spring space S2; as shown in Figure 6 and Figure 8, the first spring space S1 is connected by the rod Cover 11, the stopper 12 and the top of the movable rod 13 are formed around; Block 141 is formed around; as shown in Figure 4 and Figure 8, the elastic member 15 is arranged axially, and can be compressed and elastically deformed in the axial direction; the elastic member 15 can be selectively accommodated in the first spring space S1 Or the second spring space S2, and the opposite ends of the elastic member 15 respectively abut against the inner rod assembly and the stopper 12; in this preferred embodiment, the elastic member 15 is a compression spring.

As shown in Figure 2, Figure 4, Figure 6 and Figure 8, the joint pin 16 can be disassembled and radially arranged on the rod sleeve 11, the joint pin 16 passes through the long hole 131 of the movable rod 13, and can Move along this long hole 131; As shown in Figure 3 and Figure 7, this joint pin 16 comprises a pin head 161 and a screw rod part 162, and this pin head 161 and this screw rod part 162 are located at the opposite two sides of this joint pin 16 respectively. end, wherein, the pin head 161 is accommodated in the countersunk hole 111, and the screw part 162 is screwed into the screw hole 112 of the rod sleeve 11; as shown in Figure 2 and Figure 6, the tool clamping assembly 17 is installed on At the bottom of the movable rod 13, the tool clamp assembly 17 can be composed of a collet and a fixed nut matched with the collet, and is used to clamp a chamfering knife 20A/20B, because the tool clamp The detailed structure of the control unit 17 is known in the art, and will not be repeated here.

The chamfering tool holder 10 can be used in two situations as shown in FIG. 1 and FIG. 5 , and the two situations will be described in sequence below.

As shown in Fig. 1, in the first case, the workpiece 80A generates a thrust to the chamfering knife 20A, and the thrust pushes the chamfering knife 20A toward the chamfering tool holder 10, as shown in Fig. 2 and Fig. 4 , the elastic member 15 is accommodated in the first spring space S1, and the opposite ends of the elastic member 15 respectively abut against the groove bottom of the groove 132 of the movable rod 13 and the stopper 12; as shown in FIG. 4 , the inner rod assembly will move relative to the rod sleeve 11 axially upwards in FIG. The elastic member 15 offsets the pushing force through the elastic member 15 .

As shown in FIG. 5 , in the second case, the workpiece 80B creates a pulling force on the chamfering knife 20B, and the pulling force pulls the chamfering knife 20B in a direction away from the chamfering tool holder 10, as shown in FIGS. 6 and 8 As shown, the elastic member 15 is accommodated in the second spring space S2, and the opposite ends of the elastic member 15 respectively abut against the block 141 of the pressing rod 14 and the stopper 12; as shown in FIG. 8 , With the movement of the chamfering knife 20B, the inner rod assembly moves axially toward the bottom of FIG. 141 pushes against the elastic member 15 to compress the elastic member 15 , and counteracts the pulling force through the elastic member 15 .

To sum up, the first spring space S1 and the second spring space S2 are surrounded by the rod sleeve 11, the stopper 12 and the inner rod assembly of the chamfering tool rod 10, and the chamfering tool 20A/ When 20B causes the pushing force and the pulling force in different directions, the pushing force or the pulling force can be counteracted respectively by choosing to accommodate the elastic member 15 in the first spring space S1 or the second spring space S2. Compared with the existing The chamfering tool holder can only be used in a single situation, and this creation can be applied in any occasion that needs to offset the pushing force or the pulling force, and there is no need to prepare another set of chamfering tool holders.

The above is only a preferred embodiment of this creation, and does not limit this creation in any form. Anyone with ordinary knowledge in the technical field can use this creation without departing from the scope of the technical solutions proposed in this creation. Creation of equivalent embodiments with partial changes or modifications made to the disclosed technical content, and without departing from the content of the technical solution of the creation, all still fall within the scope of the technical solution of the creation.

10: Chamfering tool holder 11: Pole sleeve 111: countersunk hole 112: screw hole 12: Block 121: perforation 13: Movable rod 131: long hole 132: Groove 14: Pressure rod 141: block 142: junction 15: Elastic parts 16: Combined pin 161: pin head 162: screw part 17: Tool holder assembly 20A: chamfering knife 20B: chamfering knife 80A: Workpiece 80B: Workpiece A: axis line S1: First spring space S2: Second spring space

Fig. 1 is the use schematic diagram of the preferred embodiment of this creation. Fig. 2 is a partial cross-sectional view of the elastic member accommodated in the first spring space of the preferred embodiment of the invention. Fig. 3 is an exploded view of some components of the elastic member accommodated in the first spring space of the preferred embodiment of the invention. Fig. 4 is a cross-sectional view of the elastic member accommodated in the first spring space of the preferred embodiment of the invention. Fig. 5 is another schematic diagram of the use of the preferred embodiment of the invention. Fig. 6 is a partial cross-sectional view of the elastic member accommodated in the second spring space of the preferred embodiment of the invention. Fig. 7 is an exploded view of some components of the elastic member accommodated in the second spring space of the preferred embodiment of the present invention. Fig. 8 is a cross-sectional view of the elastic member accommodated in the second spring space of the preferred embodiment of the invention.

10: Chamfering tool holder

11: Pole sleeve

111: Countersunk hole

12: Block

13: Movable rod

131: long hole

14: Pressure rod

141: block

15: Elastic parts

16: Combined pin

17: Tool holder assembly

20A: chamfering knife

S2: Second spring space

Claims (9)

An axially telescopic chamfering tool holder comprising: A rod sleeve, which is hollow and contains an inner peripheral surface; a stopper, which is ring-shaped, arranged on the inner peripheral surface of the rod sleeve, and forms a perforation around it; An inner rod assembly, which is detachably arranged in the rod sleeve, can move axially relative to the rod sleeve, and includes a movable rod, which is inserted into the rod sleeve, and includes a top and a bottom opposite to each other in the axial direction; and A pressing rod, which passes through the through hole, and includes a top end and a bottom end opposite to each other in the axial direction, and a resisting block; the bottom end of the pressing rod is detachably combined with the top of the movable rod; the resisting block located at the top of the strut; A first spring space, which is surrounded by the rod sleeve, the stopper and the top of the movable rod; A second spring space, which is surrounded by the rod sleeve, the stopper and the abutting block of the pressure rod; the through hole communicates the second spring space with the first spring space; an elastic member, which is arranged in the axial direction, and can be selectively accommodated in the first spring space or the second spring space; the opposite ends of the elastic member respectively abut against the inner rod assembly and the stopper; and A tool clamping assembly is combined with the bottom of the movable rod. The axially telescopic chamfering tool holder as described in claim 1, wherein the movable rod includes a long hole; the long hole is located between the top and the bottom of the movable rod, and the movable rod is radially penetrated; The chamfering tool rod also includes a combination pin, which can be disassembled and radially arranged on the rod sleeve, passes through the long hole of the movable rod, and can move along the long hole. The axially telescopic chamfering tool shank as described in claim 2, wherein the rod sleeve includes a screw hole and a countersunk hole, and the screw hole and the countersunk hole both radially pass through the rod sleeve, and are respectively located on opposite sides of the rod sleeve; the joint pin includes a pin head and a screw part, the pin head and the screw part are respectively located at opposite ends of the joint pin, and the pin head is accommodated in the rod sleeve countersunk hole, and the screw part is screwed into the screw hole of the rod sleeve. The axially telescopic chamfering tool bar as described in claim 3, wherein the movable rod includes a screw hole, and the screw hole is axially arranged on the top of the movable rod; the pressing rod includes a joint portion, the The joint part is located at the bottom end of the pressing rod, has external thread, and is screwed into the screw hole of the movable rod. The axially telescopic chamfering tool holder according to any one of claims 1 to 4, wherein the elastic member is accommodated in the first spring space, and the opposite ends of the elastic member respectively abut against the movable The top of the rod and the stop. The axially telescopic chamfering tool holder as described in claim 5, wherein the movable rod includes a groove, the groove is located on the top of the movable rod and faces the stopper; the opposite ends of the elastic member Respectively against the groove bottom of the groove and the stopper. The axially telescopic chamfering tool holder according to claim 6, wherein the elastic member is a compression spring. The axially telescopic chamfering tool holder according to any one of claims 1 to 4, wherein the elastic member is accommodated in the second spring space, and the opposite ends of the elastic member respectively abut against the pressure The block of the rod and the block. The axially telescopic chamfering tool holder according to claim 8, wherein the elastic member is a compression spring.

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