阅读说明：本技术 一种拉车芯杆快速调节装置 (Quick adjusting device of pulling core rod ) 是由 丁岩 周福海 李�杰 钱庆 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种拉车芯杆快速调节装置,包括芯杆和垂直向上焊接在卧式拉车的床身上的尾架,其中,尾架的顶端沿床身的长度方向开设有槽口朝上设置的U字形凹槽,U字形凹槽的下方沿床身的长度方向开设有与U字形凹槽的槽口宽度相同且倾斜向上设置的斜槽；U字形凹槽和斜槽的槽口中均卡设有外径与槽口宽度相同且中空的外螺纹管,外螺纹管位于槽口的左右两侧分别螺纹连接有左大螺母和右大螺母；芯杆的尾端穿过外螺纹管的中心孔并螺纹连接有用于防止芯杆拉出外螺纹管的螺母。本发明不但可实现多根芯杆的同时固定,从而提高拉制铝合金管的效率,还可方便的实现对芯头前后位置的快速调整和对不同规格芯杆的快速更换,进一步提高了拉制铝合金管的效率。(The invention discloses a rapid regulating device for a core rod of a trolley, which comprises the core rod and a tail frame vertically and upwards welded on a bed body of a horizontal trolley, wherein a U-shaped groove with an upwards arranged notch is formed in the top end of the tail frame along the length direction of the bed body, and a chute which has the same width as the notch of the U-shaped groove and is obliquely and upwards arranged is formed below the U-shaped groove along the length direction of the bed body; the U-shaped groove and the notch of the chute are respectively provided with a hollow external threaded pipe with the same external diameter and width as the notch, and the external threaded pipes are positioned at the left side and the right side of the notch and are respectively connected with a left big nut and a right big nut in a threaded manner; the tail end of the core rod penetrates through the central hole of the external thread pipe and is in threaded connection with a nut used for preventing the core rod from being pulled out of the external thread pipe. The invention can realize the simultaneous fixation of a plurality of core rods, thereby improving the efficiency of drawing the aluminum alloy pipe, and can also conveniently realize the quick adjustment of the front and back positions of the core heads and the quick replacement of the core rods with different specifications, thereby further improving the efficiency of drawing the aluminum alloy pipe.)

1. The utility model provides a draw car core bar quick adjustment device, includes core bar (10) and perpendicular tailstock (5) of welding on lathe bed (1) of horizontal draw car, its characterized in that upwards: a U-shaped groove (13) with an upward notch is formed in the top end of the tail frame (5) along the length direction of the bed body (1), and a chute (14) which has the same width as the notch of the U-shaped groove (13) and is obliquely arranged upwards is formed below the U-shaped groove (13) along the length direction of the bed body (1); the U-shaped groove (13) and the notches of the inclined grooves (14) are respectively provided with a hollow external threaded pipe (3) with the same external diameter and the same notch width, the external threaded pipes (3) are positioned at the left side and the right side of the notches and are respectively in threaded connection with a left big nut (4) and a right big nut (6) through external threads arranged on the external threaded pipes (3); the tail end of the core rod (10) penetrates through a central hole of the external thread pipe (3) and is in threaded connection with a nut (2) used for preventing the core rod (10) from being pulled out of the external thread pipe (3) through threads formed at the tail part.

2. The rapid pull rod adjusting device of claim 1, wherein: the side surface of the bottom end of the inclined groove (14) and the side surface of the U-shaped groove (13) far away from the opening of the inclined groove (14) are positioned on the same vertical plane.

3. The rapid pull rod adjusting device of claim 1, wherein: the inclined angle of the chute (14) is 30-60 degrees.

4. The rapid pull rod adjusting device of claim 1, wherein: the external thread pipe (3) is a group of external thread pipes (3) with the inner diameters matched with core rods (10) with different outer diameters.

5. The rapid pull rod adjusting device of claim 1, wherein: the nut (2) is close to the port of the external threaded pipe (3), and the outer diameter of the nut (2) is larger than the diameter of the central hole of the external threaded pipe (3).

6. The pulling mandrel quick adjustment device of claim 5, wherein: and a tension spring (9) used for realizing axial positioning of the core rod (10) is obliquely arranged between the core rod (10) and the lathe bed (1).

7. The pulling mandrel quick adjustment device of claim 6, wherein: the core rod (10) is sleeved with a tension spring fixing sleeve (7), and the tension spring fixing sleeve (7) is fixedly connected with the core rod (10) through a plurality of fixing screws (8) which are arranged in a penetrating manner; one end of the tension spring (9) is pressed on the tension spring fixing sleeve (7) through a fixing screw (8), and the other end of the tension spring (9) is fixedly connected with the part, corresponding to the core rod (10) at the front end of the tension spring fixing sleeve (7), on the lathe bed (1).

8. The rapid pull rod adjusting device of claim 1, wherein: the front end of the core rod (10) is in threaded connection with the core head (11) through a thread.

Technical Field

The invention relates to the technical field of aluminum and aluminum alloy cold processing, in particular to a device for quickly adjusting a pulling core rod.

Background

When the aluminum alloy pipe is drawn by adopting a horizontal pulling trolley, in order to ensure the matching between the sizing position of the core head connected with the head part of the core rod and the outer die, the position of the core head needs to be adjusted by adjusting the length of the core rod; meanwhile, according to the drawing specification, the core rod with the proper diameter needs to be replaced sometimes to ensure the drawing effect.

The device for adjusting the position of the core rod or replacing the core rod adopted by the existing pulling cart is complex and time-consuming in operation, long in mold replacement time and affects production efficiency. Therefore, the technical staff needs to solve the problem in the present stage that the position of the core rod can be simply and conveniently adjusted or the core rod can be replaced.

Disclosure of Invention

The invention aims to solve the technical problem of providing a rapid adjustment device for a pulling core rod, which can simply and conveniently adjust the position of the core rod or replace the core rod, thereby saving the time for changing the model and increasing the production efficiency.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A rapid adjusting device for a core rod of a trolley comprises the core rod and a tail frame which is vertically upwards welded on a lathe bed of a horizontal trolley, wherein a U-shaped groove with an upwards arranged notch is formed in the top end of the tail frame along the length direction of the lathe bed, and a chute which has the same width as the notch of the U-shaped groove and is obliquely upwards arranged is formed below the U-shaped groove along the length direction of the lathe bed; the U-shaped groove and the notch of the chute are respectively provided with a hollow external threaded pipe with the same outer diameter and width as the notch, and the external threaded pipes are positioned at the left side and the right side of the notch and are respectively in threaded connection with a left big nut and a right big nut through external threads arranged on the external threaded pipes; the tail end of the core rod penetrates through the central hole of the external thread pipe and is in threaded connection with a nut used for preventing the core rod from being pulled out of the external thread pipe through threads arranged at the tail part.

Preferably, the side surface of the bottom end of the chute and the side surface of the U-shaped groove far away from the opening of the chute are positioned on the same vertical plane.

Preferably, the inclined angle of the chute is 30-60 degrees.

Preferably, the external thread pipe is a group of external thread pipes with inner diameters matched with core rods with different outer diameters.

Preferably, the nut is arranged at the end of the external thread pipe, and the outer diameter of the nut is larger than the diameter of the central hole of the external thread pipe.

Preferably, a tension spring used for realizing axial positioning of the core rod is obliquely arranged between the core rod and the lathe bed.

Preferably, the core bar is sleeved with a tension spring fixing sleeve, and the tension spring fixing sleeve is fixedly connected with the core bar through a plurality of fixing screws which are arranged in a penetrating manner; one end of the tension spring is pressed on the tension spring fixing sleeve through a fixing screw, and the other end of the tension spring is fixedly connected with the part, corresponding to the core bar at the front end of the tension spring fixing sleeve, of the lathe bed.

Preferably, the front end of the core rod is in threaded connection with the core head through a thread.

Due to the adoption of the technical scheme, the technical progress of the invention is as follows.

According to the invention, the U-shaped groove and the chute are formed in the tail frame, so that a plurality of core rods can be fixed at the same time, and the efficiency of drawing the aluminum alloy pipe is improved; through the external threaded pipe, the left large nut and the right large nut which are arranged on the tailstock, the front and the rear positions of the core heads can be quickly and conveniently adjusted, core rods of different specifications can be quickly replaced, the universality is strong, the operation is simple, the time for changing the shape is saved, the labor intensity of workers is reduced, and the efficiency for drawing the aluminum alloy pipe is further improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is a schematic view of the tailstock structure of the present invention.

Wherein: 1. the novel lathe comprises a lathe bed, 2 nuts, 3 external threaded pipes, 4 left large nuts, 5 tailstock, 6 right large nuts, 7 tension spring fixing sleeves, 8 fixing screws, 9 tension springs, 10 core rods, 11 core heads, 12 supporting columns, 13U-shaped grooves and 14 inclined grooves.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A quick adjustment device for a pull cart core rod is shown in a combined figure 1 and comprises a core rod 10 and a tail frame 5, wherein the tail frame 5 is used for fixing the core rod 10 and can finish quick adjustment and replacement of the core rod 10.

The tail frame 5 is vertically arranged upwards, the bottom surface of the tail frame is welded on a U-shaped lathe bed 1 of the horizontal type trolley, the lathe bed 1 is fixed on the ground through a plurality of supporting columns 12, and the lathe bed 1 is connected with the supporting columns 12 in a welding mode.

The top end of the tail frame 5 is provided with a U-shaped groove 13, and the notch of the U-shaped groove 13 is arranged upwards and is arranged along the length direction of the lathe bed 1. An inclined groove 14 is formed below the U-shaped groove 13, and the inclined groove 14 is formed along the length direction of the lathe bed 1 and has the same width as the notch of the U-shaped groove 13. The inclined groove 14 is obliquely and upwards arranged, the inclined angle is 30-60 degrees, and the side face of the bottom end of the inclined groove 14 and the side face, far away from the opening of the inclined groove 14, of the U-shaped groove 13 are located on the same vertical plane. The U-shaped grooves 13 and the inclined grooves 14 are used for erecting the core rods 10, and the U-shaped grooves 13 and the inclined grooves 14 can be erected simultaneously for a plurality of core rods 10 with the same specification according to different numbers of the inclined grooves 14, so that the efficiency of drawing the aluminum alloy pipe is improved.

The U-shaped groove 13 and the chute 14 are provided with external thread pipes 3, the internal parts of the external thread pipes 3 are hollow, and external threads are arranged on the external parts of the external thread pipes. The outer diameter of the outer threaded pipe 3 is the same as the width of the notch, and the left side and the right side of the notch of the outer threaded pipe 3 are respectively in threaded connection with a left large nut 4 and a right large nut 6 through external threads. The inner diameter of the external thread pipe 3 is matched with the outer diameter of the core rod 10, the external thread pipe 3 is a group of external thread pipes 3 with different inner diameters, and the matched external thread pipe 3 can be selected according to different outer diameters of the core rod 10 to be fixed.

The tail end of the core rod 10 penetrates through the central hole of the external thread pipe 3, and the tail end and the front end of the core rod 10 are both provided with threads. The front end of the core bar 10 is connected with a core head 11 in a threaded mode, the tail end of the core bar 10 is connected with a nut 2 in a threaded mode, the nut 2 is arranged close to the end of the outer threaded pipe 3, the outer diameter of the nut 2 is larger than the diameter of the central hole of the outer threaded pipe 3, and therefore the core bar 10 can be guaranteed not to be separated from the outer threaded pipe 3 when being pulled.

A tension spring 9 is obliquely arranged between the core bar 10 and the lathe bed 1, and the tension spring 9 is used for realizing the axial positioning of the core bar 10. The core bar 10 is sleeved with a tension spring fixing sleeve 7, and the tension spring fixing sleeve 7 is fixedly connected with the core bar 10 through a plurality of fixing screws 8 which are arranged in a penetrating manner. One end of a tension spring 9 is pressed on the tension spring fixing sleeve 7 through a fixing screw 8, and the other end of the tension spring 9 is fixedly connected with a part, corresponding to a core rod 10 at the front end of the tension spring fixing sleeve 7, on the lathe bed 1. Under normal conditions, the tension spring 13 is always in a tensioned state, and under the action of the pre-tensioning force of the tension spring 13, the nut 2 can be ensured to abut against the port of the external thread pipe 3, so that the axial positioning of the core rod 10 is realized.

When the core head 11 needs to be adjusted forward for a certain distance in use, the left big nut 4 is firstly screwed out for a certain distance, then the right big nut 6 is screwed until the left big nut 4 is tightly attached to the side surface of the tailstock 5, and the adjustment of the distance of the core head 11 is finished. On the contrary, when the core print 11 needs to be adjusted backward for a certain distance, the right big nut 6 is firstly screwed backward for a certain distance, then the left big nut 4 is screwed until the right big nut 6 is tightly attached to the side surface of the tailstock 5, and the adjustment of the distance of the core print 11 is finished.

When the core bar 10 with different outer diameters needs to be replaced, the tension spring 9 is taken down from the fixing screw 8, the left big nut 4 or the right big nut 6 is unscrewed, and the whole core bar 10 together with the external thread pipe 3 is pulled out from the U-shaped groove 13 and the groove opening of the inclined groove 14. When the core bar 10 having the same outer diameter is replaced, the nut 2 at the rear end of the core bar 10 is unscrewed, and the core bar 10 is drawn out from the external threaded pipe 3, and then the core bar 10 is replaced with a suitable one.