Chain tension adjusting mechanism of chain type tool magazine

Abstract

A chain tension adjusting mechanism of a chain type tool magazine comprises a base, a chain and a motor, a driving chain wheel and a steering chain wheel are arranged on the base, the chain is wound around the driving chain wheel and the steering chain wheel, and the motor drives the driving chain wheel to rotate. Wherein the steering chain wheel is installed on a sliding seat, the sliding seat can be pushed by at least one pushing piece to generate translation, and therefore the purpose of adjusting the tension of the chain is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain type tool magazine, especially a chain tension adjusting mechanism of chain type tool magazine. BACKGROUND

[0002] A known chain type tool magazine comprises a chain and a plurality of sprockets, the chain uses the sprockets as fulcrums to change the running track, and one of the sprockets is driven to rotate by a motor to drive the chain to run, the chain type tool magazine drives the chain to rotate to bring tools (cutters) combined on the chain to a specified position, and then a tool changing arm changes the tools to a main shaft to achieve the tool changing purpose.

[0003] The chain is divided into a non-turning chain segment and a turning chain segment by the sprocket during running, the non-turning chain segment and the turning chain segment are respectively subjected to the action of tension and thrust, so that the tension of the chain segment on one side and the tension of the chain segment on the other side are uneven, which easily leads to the jamming phenomenon and causes the improper impact of part of the chain at the jamming position, and the service life of the chain is reduced under the long-term action. To solve the uneven tension, some manufacturers develop a structure with tension adjustment, such as the utility model patent "Chain type tool magazine for machine tool" (M457602) in Taiwan, China, which discloses using a plurality of screws as a means to adjust the tension. Although the disclosed patent technology can improve the problem of uneven tension, it is inconvenient to tighten and release the plurality of screws at the same time. In addition, in order to facilitate the operation of the screws, other machine parts such as motors cannot be arranged around the screws. Therefore, the motor in the patent technology is installed in a standing manner to avoid the position of the screws, but the protruding part of the motor undoubtedly increases the space occupied by the chain type tool magazine in the processing environment. SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a chain tension adjusting mechanism of chain type tool magazine, which is easy to adjust the tension and can reduce the space occupied in the processing environment.

[0005] To achieve the above object, the utility model provides a chain tension adjusting mechanism of chain tool magazine, the chain tool magazine contains a base, a chain and a motor, wherein the base is equipped with a driving sprocket and a steering sprocket, the chain is around the driving sprocket and the steering sprocket, the motor drives the driving sprocket to rotate, wherein the base has a fixed part, the steering sprocket is arranged on a sliding base, the sliding base is combined with the base and can move along a first direction, the sliding base has a pushed part, and at least one pushing piece is combined with the base and can move along a second direction, the second direction is perpendicular to the first direction, the at least one pushing piece has a front pushing surface and a back leaning surface opposite to each other, the front pushing surface contacts the pushed part, and the back leaning surface contacts the fixed part.

[0006] The utility model discloses the effect lies in through the control at least one pushing piece when moving in the second direction, can push the sliding base along the first direction moves, thereby reaches the purpose of adjusting the chain tension. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is the stereogram of the chain tension adjusting mechanism of chain tool magazine of a preferred embodiment of the utility model;

[0008] Figure 2 It is the chain tool magazine of the plan view shown in; Figure 1

[0009] Figure 3 It is the exploded view of the chain tool magazine shown in; Figure 1

[0010] Figure 4 It is the exploded view of partial component in; Figure 3

[0011] Figure 5 It is the plan view of partial component shown in; Figure 4

[0012] Figure 6 It is the 6-6 direction section view of; Figure 5

[0013] Figure 7 It is the 7-7 direction section view of; Figure 5

[0014] Figure 8 Like Figure 7 It is the partial section view of the chain tool magazine of another preferred embodiment of the utility model.

[0015] SYMBOL DESCRIPTION

[0016] 100:chain tool magazine

[0017] 10:base ​​​​​​

[0018] 11: Circular sidewall

[0019] 12: Support

[0020] 12a: Restraint surface

[0021] 12b: Bottom surface

[0022] 13: Hole base

[0023] 14: First screw hole

[0024] 15: Bumps

[0025] 15a: Inclined surface

[0026] 16: Second screw hole

[0027] 17: Pushing component

[0028] 17a: Forward pushing surface

[0029] 17b: Backrest

[0030] 17c: piercing

[0031] 18: Screw

[0032] 19: Pushing component

[0033] 19a: Forward pushing surface

[0034] 19b: Backrest

[0035] 20: Drive sprocket

[0036] 22: Shaft

[0037] 30: Steering sprocket

[0038] 30a: Hollow hole

[0039] 32: Shaft

[0040] 34: Slide

[0041] 34a: Guide groove

[0042] 34b: Inclined surface

[0043] 35: Slide

[0044] 35a: Flat surface

[0045] 36: Fixed pin

[0046] 36a: Head

[0047] 38: Gasket

[0048] 40: Chain

[0049] 42: chain unit

[0050] 44: link rod

[0051] 46: tool pocket

[0052] 50: motor

[0053] 52: transmission mechanism

[0054] D1: first direction

[0055] D2: second direction DETAILED DESCRIPTION

[0056] In order to make the present application clearer, a preferred embodiment will be described in detail below with reference to the drawings. Please refer to Fig. 1, the chain tool magazine 100 of the present application comprises a base 10, a driving sprocket 20, a steering sprocket 30, a chain 40 and a motor 50. Figures 1 to 4 The base 10 has a circular wall 11 on one side, and two seats 12, a hole seat 13 and a fixed part are arranged within the range of the circular wall 11. The two seats 12 are in the shape of a Greek letter and have two opposite constraint surfaces 12a and a bottom surface 12b. Each bottom surface 12b has a plurality of first screw holes 14. The hole seat 13 is located on the other side opposite to the two seats 12. The fixed part in this embodiment is composed of two protrusions 15. One end of each protrusion 15 is connected to the side of the base 10, and a second screw hole 16 is arranged in front of each protrusion 15.

[0057] The base 10 further has at least one pushing member 17, preferably two, which are arranged in cooperation with the number of protrusions 15. The pushing member 17 is arranged in cooperation with the hole seat 13 and the fixed part.

[0058] As can be seen, the pushing member 17 is a block-shaped body having a front pushing surface 17a and a rear leaning surface 17b opposite to each other, and has a through hole 17c penetrating the body. In this embodiment, the front pushing surface 17a is an inclined surface, and the rear leaning surface 17b is a flat surface. The pushing member 17 is wide at the top and narrow at the bottom. The two pushing members 17 pass through the through hole 17c respectively via a screw rod 18, and one end of the screw rod 18 is locked into the corresponding second screw hole 16 to combine the base 10. Figure 7

[0059] ​The driving sprocket 20 and the steering sprocket 30 are respectively provided with a shaft 22 and a shaft 32, one end of the shaft 22 is inserted into the hole seat 13, one end of the shaft 32 is fixedly connected to a sliding seat 34, the sliding seat 34 is movably arranged on the two bearing seats 12, and one side of the sliding seat 34 is in contact with the front pushing surface 17a of the two pushing members 17. Thus, the driving sprocket 20 and the steering sprocket 30 are arranged on the base 10, and the driving sprocket 20 is rotatably supported by the shaft 22, and the steering sprocket 30 is rotatably supported by the shaft 32. In addition, the circumferences of the driving sprocket 20 and the steering sprocket 30 respectively form an engagement part.

[0060] The chain 40 is composed of a plurality of chain link units 42 connected by a plurality of link rods 44, each chain link unit 42 carries a tool sleeve 46, and each tool sleeve 46 is used to insert a tool rod (not shown). The chain 40 passes through the driving sprocket 20 and the steering sprocket 30, and the engagement parts of the driving sprocket 20 and the steering sprocket 30 can engage the link rods 44 of the chain 40, thereby driving the chain 40.

[0061] The motor 50 is installed on the base 10 and is placed in the space surrounded by the driving sprocket 20, the steering sprocket 30 and the chain 40 in a manner close to the side surface of the base 10. The motor 50 drives the driving sprocket 20 to rotate through a transmission mechanism 52, and further drives the chain 40 to move around in a predetermined track.

[0062] The above is the main component description of the chain type tool magazine 100 of the preferred embodiment of the utility model, and the detailed features will be described below.

[0063] Please refer to Figure 1 and Figure 2 The chain disc of the steering sprocket 30 of the embodiment has a plurality of hollow holes 30a, Figure 4 It is disclosed that the sliding seat 34 has a plurality of elongated guide grooves 34a, wherein the number of the hollow holes 30a is greater than or equal to the number of the guide grooves 34a. Please refer to Figures 5 to 7 The sliding seat 34 is movably combined with the base 10 by a plurality of fixing pins 36, such as bolts, which respectively pass through a gasket 38 and a corresponding guide groove 34a, and one end of the fixing pin 36 is locked into a corresponding first screw hole 14, and the sliding seat 34 is limited by the restraining surface 12a of the two bearing seats 12 to move only in a first direction D1. The part of the sliding seat 34 in contact with the front pushing surface 17a of the two pushing members 17 is defined as a pushed part, which is an inclined surface 34b in cooperation with the front pushing surface 17a, and the sliding seat 34 is limited by the restraining surface 12a of the two bearing seats 12 to move only in a first direction D1. Figure 7As shown, the inclined surface 34b of the slide 34 after assembly is in contact with the front pushing surface 17a of the pushing member 17, and the rear leaning surface 17b of the pushing member 17 is in contact with the side surface of the protrusion 15.

[0064] The fixing pin 36 also has a head 36a which can be driven by a tool to drive the fixing pin 36, that is, the operator can use a tool to drive the fixing pin 36 through the hollow hole 30a Figure 2 Referring to) the diameter of the fixing pin 36 is driven, when the fixing pin 36 is screwed into the corresponding first screw hole 14, and the head 36a and the gasket 38 are tightly pressed against the surface of the slide 34, the slide 34 is fixed; on the contrary, when the fixing pin 36 is loosened and the head 36a and the gasket 38 are no longer tightly pressed against the surface of the slide 34, the slide 34 can be moved.

[0065] When the chain 40 needs to be adjusted in tension, the operator only needs to loosen each fixing pin 36, and then rotate each screw rod 18, so that each pushing member 17 moves downward as the screw rod 18 is screwed into the second screw hole 16, and the rear leaning surface 17b of each pushing member 17 is in contact with the corresponding protrusion 15 and moves in a second direction D2 which is perpendicular to the first direction D1, at the same time, the front pushing surface 17a of the pushing member 17 gradually pushes the slide 34 outward, the displacement of the slide 34 in the first direction D1 is related to the rotation amount of the screw rod 18 screwed into the second screw hole 16, until the operator considers that the tension of the chain 40 has reached the preset value, then each fixing pin 36 is locked to fix the position of the slide 34 and the sprocket 30 thereon, thus the purpose of adjusting the chain tension is achieved.

[0066] As can be seen from the above description, the motor 50 of the present embodiment is placed in a flat swing manner in the space surrounded by the driving sprocket 20, the steering sprocket 30 and the chain 40. The motor 50 is not installed vertically as in the prior art, so that the entire chain tool magazine 100 can reduce the space occupied by the machining environment. In addition, the pushing member 17 and the screw rod 18 for adjusting the tension of the chain 40 are Figure 2 As can be seen from the above description, the pushing member 17 and the screw rod 18 for adjusting the tension of the chain 40 are

[0067] It is further explained that the front pushing surface 17a of the pushing member 17 in the above embodiment is inclined, and the pushed part of the slide 34 matched with the front pushing surface 17a is also inclined 34b, but in practice, it can also be as Figure 8Another embodiment of the structural relationship is shown, that is, the front pushing surface 19a of the pushing member 19 is a flat surface, the pushed part of the sliding seat 35 matched with the front pushing surface 19a is also a flat surface 35a, and the rear leaning surface 19b of the pushing member 19 is an inclined surface, the surface of the protrusion 15 contacted with the rear leaning surface 19b is an inclined surface 15a. Similarly, when the operator drives the screw rod 18, the pushing member 19 can also push the sliding seat 35 to translate because of the downward movement, and the purpose of adjusting the chain tension can also be achieved.

[0068] The above merely describes the preferred and feasible embodiments of the present application, and equivalent changes made according to the description and the patent application scope of the present application shall be included in the patent scope of the present application.

Claims

1. A chain tension adjusting mechanism for a chain-type tool magazine, the chain-type tool magazine comprising a base, a chain, and a motor, wherein the base is provided with a drive sprocket and a guide sprocket, the chain is wound around the drive sprocket and the guide sprocket, and the motor drives the drive sprocket to rotate; characterized in that: The base has a fixing part; The steering sprocket is mounted on a slide block, which is coupled to the base and is movable along a first direction. The slide block has a pushable part. At least one pusher is attached to the base and is movable along a second direction, which is perpendicular to the first direction; the at least one pusher has a front pusher surface and a rear pusher surface facing away from each other, the front pusher surface contacts the pushed part, and the rear pusher surface contacts the fixed part. In this way, when the at least one pusher moves in the second direction, the at least one pusher pushes the slide to move along the first direction.

2. The chain tension adjustment mechanism of the chain-type tool magazine as described in claim 1, characterized in that, The motor is mounted on the base and located between the drive sprocket and the steering sprocket.

3. The chain tension adjustment mechanism of the chain-type tool magazine as described in claim 1 or 2, characterized in that, The push surface of the at least one pusher and the backing surface are both inclined surfaces, and the fixed part of the base or the pushed part of the slide that cooperates with the inclined surface has an inclined surface.

4. The chain tension adjustment mechanism of the chain-type tool magazine as described in claim 1, characterized in that, The slide has multiple guide grooves, each of which is through which a fixing pin passes, and one end of each fixing pin is fixed to the base, while the other end presses against the slide.

5. The chain tension adjustment mechanism of the chain-type tool magazine as described in claim 4, wherein the base has two restraining surfaces, and the slide is located between the two restraining surfaces.

6. The chain tension adjustment mechanism of the chain-type tool magazine as described in claim 4, wherein a chain disc of the steering sprocket has a plurality of hollow holes, and the plurality of hollow holes respectively correspond to a fixing pin.

7. The chain tension adjustment mechanism of the chain-type tool magazine as claimed in claim 1, wherein the at least one pusher has a through hole, and at least one screw passes through the through hole and is locked into the base.

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