Adjustable clamp for return wheel type hexagonal lathe

Abstract

The utility model relates to the technical field of return wheel type hexagonal lathes, in particular to an adjustable clamp for a return wheel type hexagonal lathe. Comprising a chuck body and an inner supporting device, a rotating bolt, a small bevel gear, a large bevel gear, a screw groove and a clamping jaw are installed on the outer side of the chuck body, the inner supporting device is installed in the middle of the chuck body, and a servo motor, a reciprocating lead screw, an inner supporting sliding block, an inner supporting push rod and an inner supporting clamping block are installed in the inner supporting device; a square groove hole and a guide sliding groove are formed in the side, close to the inner supporting clamping block, of the inner supporting device. A servo motor drives a reciprocating screw rod to rotate, an inner supporting sliding block slides along the reciprocating screw rod, at the moment, the inner supporting sliding block pushes an inner supporting push rod to turn over along a rotating shaft pin and pushes an inner supporting clamping block to make contact with the inner wall of a circular pipe to support the circular pipe, and after fixing, a rotating bolt is rotated to drive a clamping jaw to clamp the outer wall of the circular pipe; in this way, the round pipe can be effectively prevented from being pressed, deformed and damaged in the using process, and the production efficiency and effect are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of return wheel type hexagonal lathes, in particular to an adjustable clamp for return wheel type hexagonal lathes. Background Art

[0002] Hexagonal lathe is a machine tool developed on the basis of ordinary lathe. The productivity of hexagonal lathe is higher than that of ordinary lathe. According to the different hexagonal tool holders installed, hexagonal lathes can be divided into two categories: turret hexagonal lathe and return wheel hexagonal lathe. The return wheel hexagonal lathe is similar in appearance to the turret hexagonal lathe, but there is no front tool holder in the return wheel hexagonal lathe, and the turret tool holder on the turret hexagonal lathe is replaced with a return wheel tool holder. The axis of the return wheel tool holder is arranged horizontally, which is parallel to the center line of the spindle. The return wheel hexagonal lathe is mainly used to process workpieces with smaller diameters. The blanks it uses are mostly bars. For these bars, a three-jaw chuck is usually used for clamping. However, if a three-jaw chuck is used to clamp a hollow round tube, it is easy to cause the round tube to deform, which will cause damage to the round tube, affecting the efficiency and effect of production. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide an adjustable clamp for a return wheel hexagonal lathe, which solves the problem that these bars are usually clamped with a three-jaw chuck, but if a three-jaw chuck is used to clamp a hollow round tube, it is easy to cause the round tube to deform, and then cause damage to the round tube, affecting the efficiency and effect of production.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: an adjustable clamp for a return wheel hexagonal lathe, comprising a chuck body and an inner support device, a rotating bolt is installed on the outer side of the chuck body, and a small bevel gear is connected to the inner side of the rotating bolt, a large bevel gear is meshed and connected to the upper side of the small bevel gear, a screw groove is provided on the side of the large bevel gear away from the small bevel gear, a clamping claw is installed in engagement with the outer side of the chuck body, the inner support device is installed in the middle part of the chuck body, and a servo motor is installed inside the inner support device, a reciprocating screw rod is installed at the output end of the servo motor, and an inner support slider is installed on the reciprocating screw rod, an inner support push rod is connected to the upper side of the inner support slider through a rotating pin, and the top of the inner support push rod is connected to the inner support clamping block through a rotating pin, a square slot hole is provided on the side of the inner support device close to the inner support clamping block, and guide slots are provided on both sides of the square slot hole.

[0005] The beneficial effects of the utility model are as follows: the servo motor drives the reciprocating screw to rotate, and the inner support slider slides along the reciprocating screw. At this time, the inner support slider pushes the inner support push rod to flip along the rotating shaft pin, and pushes the inner support clamping block to contact the inner wall of the round tube to support the round tube. After fixing, the rotating bolt is rotated to drive the clamping claw to clamp the outer wall of the round tube. The above method can effectively prevent the round tube from being compressed, deformed and damaged during use, thereby ensuring production efficiency and effect.

[0006] In order to facilitate the device to clamp the round tube:

[0007] As a further improvement of the above technical solution: the reciprocating screw rod and the inner support device are arranged with their center lines overlapping.

[0008] The beneficial effects of this improvement are: the center line overlap setting can enable the reciprocating screw to drive the inner support slider to slide along the reciprocating screw under the drive of the servo motor, thereby facilitating the inner support slider to drive the inner support push rod to flip along the rotating pin, and by changing the angle of the inner support push rod, the inner support push rod can push the inner support clamping block to slide along the square slot hole and the guide slot, thereby facilitating the device to clamp the round tube.

[0009] As a further improvement of the above technical solution: the inner support push rod is circumferentially distributed on the outer side of the inner support sliding block.

[0010] The beneficial effect of this improvement is that the three inner support push rods can push the three inner support clamping blocks. This method can ensure that the inner support clamping blocks support the circular tube internally, so that the inner support clamping blocks are evenly stressed.

[0011] To guide the sliding of the inner support clamping block:

[0012] As a further improvement of the above technical solution: a sliding installation structure is formed between the inner support clamping block and the inner support device through a guide slot.

[0013] The beneficial effect of this improvement is that the sliding of the inner support clamping block can be guided and limited by the guide groove, so that the inner support clamping block can clamp the round tube more conveniently.

[0014] In order to facilitate the contact between the inner support clamping block and the inner wall of the round tube:

[0015] As a further improvement of the above technical solution: the top end of the inner support clamping block is arranged in an arc shape.

[0016] The beneficial effect of this improvement is that the arc-shaped arrangement can make the inner support clamping block contact with the inner wall of the round tube more conveniently.

[0017] To facilitate the installation of the inner support push rod:

[0018] As a further improvement of the above technical solution: the inner supporting sliding block is arranged in a hexagonal prism.

[0019] The beneficial effect of this improvement is that the hexagonal prism arrangement can make it easier to install the inner support push rod on the outside of the inner support slider.

[0020] To facilitate the fixing of the round tube:

[0021] As a further improvement of the above technical solution: the inner support clamping blocks are circumferentially distributed on the outer side of the inner support device.

[0022] The beneficial effect of this improvement is that the circumferentially distributed inner support clamping blocks can evenly support the round tube from the inner wall of the round tube, ensuring that the force on the round tube is even.

[0023] To facilitate the sliding of the clamping jaws:

[0024] As a further improvement of the above technical solution: the clamping claw and the screw groove are meshedly connected.

[0025] The beneficial effect of this improvement is that the meshing connection can make the clamping claws move synchronously toward the axis center of the chuck body, which facilitates the concentricity of the clamping claws to fix the raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall axonometric structure.

[0027] Figure 2 It is a schematic diagram of the overall axonometric section structure.

[0028] Figure 3 It is a schematic diagram of the overall structure from a top view.

[0029] Figure 4 It is a schematic diagram of the overall top view and cross-sectional structure.

[0030] Figure 5 It is a schematic diagram of the overall cross-sectional structure when viewed from above.

[0031] In the figure: 1. chuck body; 11. rotating bolt; 12. small bevel gear; 13. large bevel gear; 14. screw groove; 15. clamping claw; 2. internal support device; 21. servo motor; 22. reciprocating screw; 23. internal support slider; 24. internal support push rod; 25. internal support clamping block; 26. square slot hole; 27. guide slide groove. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0033] like Figure 1-5As shown, an adjustable clamp for a return wheel hexagonal lathe comprises a chuck body 1 and an inner support device 2, a rotating bolt 11 is installed on the outer side of the chuck body 1, and a small bevel gear 12 is connected to the inner side of the rotating bolt 11, a large bevel gear 13 is meshed and connected to the upper side of the small bevel gear 12, a screw groove 14 is provided on the side of the large bevel gear 13 away from the small bevel gear 12, a clamping claw 15 is installed on the outer side of the chuck body 1, the inner support device 2 is installed in the middle part of the chuck body 1, and a servo motor 21 is installed inside the inner support device 2, a reciprocating screw 22 is installed on the output end of the servo motor 21, and an inner support slider 23 is installed on the reciprocating screw 22, and the upper side of the inner support slider 23 is rotated The pin is connected with an inner support push rod 24, and the top of the inner support push rod 24 is connected with an inner support clamping block 25 through a rotating pin. A square slot hole 26 is provided on one side of the inner support device 2 close to the inner support clamping block 25, and guide slots 27 are provided on both sides of the square slot hole 26. The servo motor 21 drives the reciprocating screw 22 to rotate, and the inner support slider 23 slides along the reciprocating screw 22. At this time, the inner support slider 23 pushes the inner support push rod 24 to flip along the rotating shaft pin, and pushes the inner support clamping block 25 to contact the inner wall of the round tube to support the round tube. After fixing, the rotating bolt 11 is rotated to drive the clamping claw 15 to clamp the outer wall of the round tube. The above method can effectively prevent the round tube from being compressed, deformed and damaged during use, thereby ensuring the efficiency and effect of production. The centerline overlap setting is adopted between the devices 2. The centerline overlap setting can make the reciprocating screw 22 drive the inner support slider 23 to slide along the reciprocating screw 22 under the drive of the servo motor 21, so as to facilitate the inner support slider 23 to drive the inner support push rod 24 to flip along the rotating pin. By changing the angle of the inner support push rod 24, the inner support push rod 24 can push the inner support clamping block 25 to slide along the square slot 26 and the guide slide groove 27, so as to facilitate the device to clamp the round tube. The inner support push rod 24 is circumferentially distributed on the outer side of the inner support slider 23. The three inner support push rods 24 can push the three inner support clamping blocks 25. This method can ensure that the inner support clamping block 25 supports the round tube internally, so that the inner support clamping block 25 is evenly stressed. The inner support clamping block 25 and the inner support device 2 The guide slot 27 is used to form a sliding installation structure. The guide slot 27 can guide and limit the sliding of the inner support clamping block 25, which is convenient for the inner support clamping block 25 to clamp the round tube. The top of the inner support clamping block 25 is set in an arc shape. The arc shape can make it easier for the inner support clamping block 25 to contact the inner wall of the round tube. The inner support slider 23 is set in a hexagonal prism. The hexagonal prism setting can make it easier for the inner support push rod 24 to be installed on the outside of the inner support slider 23. The inner support clamping block 25 is circumferentially distributed on the outside of the inner support device 2. The circumferentially distributed inner support clamping block 25 can evenly support the round tube from the inner wall of the round tube to ensure that the force on the round tube is even. The clamping claw 15 is meshed with the screw groove 14.The meshing connection can make the clamping claw 15 move synchronously toward the axis of the chuck body 1, which facilitates the concentricity of the clamping claw 15 to fix the raw material.

[0034] The working principle of the utility model is as follows: when using the device, the device is installed on a lathe. When the bar needs to be clamped, the bar is placed in the middle of the chuck body 1. At this time, the rotating bolt 11 drives the small bevel gear 12 to rotate, and the large bevel gear 13 is transmitted through the small bevel gear 12. When the large bevel gear 13 rotates, the screw groove 14 is driven to push the clamping claw 15 to move toward the bar, so that the bar can be clamped. For a hollow round tube, the round tube is placed in the middle of the chuck body 1 and inserted as above. At this time, the servo motor 21 drives the reciprocating wire The rod 22 rotates, and the inner support slider 23 slides along the reciprocating screw rod 22. At this time, the inner support slider 23 pushes the inner support push rod 24 to flip along the rotating shaft pin, and then pushes the inner support clamping block 25 to slide along the square slot 26 and the guide slide groove 27. At this time, the inner support clamping block 25 contacts the inner wall of the round tube to support the round tube. After fixing, the rotating bolt 11 is rotated as above to drive the clamping claw 15 to clamp the outer wall of the round tube. In this way, the round tube can be reliably clamped. The above method can effectively prevent the round tube from being compressed, deformed and damaged during use, thereby ensuring production efficiency and effect.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. An adjustable clamp for a hexagonal lathe with a return wheel, comprising a chuck body (1) and an inner support device (2), characterized in that: A rotating bolt (11) is installed on the outer side of the chuck body (1), and a small bevel gear (12) is connected to the inner side of the rotating bolt (11). A large bevel gear (13) is meshedly connected to the upper side of the small bevel gear (12). A screw groove (14) is provided on the side of the large bevel gear (13) away from the small bevel gear (12). A clamping claw (15) is installed on the outer side of the chuck body (1). The inner support device (2) is installed in the middle part of the chuck body (1), and a A servo motor (21), wherein a reciprocating screw (22) is installed at the output end of the servo motor (21), and an inner support slider (23) is installed on the reciprocating screw (22), an inner support push rod (24) is connected to the upper side of the inner support slider (23) via a rotating pin, and the top of the inner support push rod (24) is connected to the inner support clamping block (25) via a rotating pin, and a square slot hole (26) is provided on one side of the inner support device (2) close to the inner support clamping block (25), and guide grooves (27) are provided on both sides of the square slot hole (26).

2. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: The reciprocating screw rod (22) and the inner support device (2) are arranged so that their center lines coincide with each other.

3. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: The inner support push rod (24) is circumferentially distributed on the outer side of the inner support sliding block (23).

4. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: A sliding installation structure is formed between the inner support clamping block (25) and the inner support device (2) via a guide sliding groove (27).

5. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: The top end of the inner support clamping block (25) is arranged in an arc shape.

6. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: The inner support slide block (23) is arranged in the form of a hexagonal prism.

7. The adjustable clamp for a return wheel hexagonal lathe according to claim 1, characterized in that: The inner support clamping blocks (25) are distributed circumferentially on the outer side of the inner support device (2).

8. The adjustable fixture for a return wheel hexagonal lathe according to claim 1, characterized in that: The clamping claw (15) and the screw groove (14) are meshedly connected.

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