Automatic feeding device for thin-wall drill welding rack barrel

Abstract

The present invention provides an automatic supply device for the cylinder of a thin-wall drill welding machine frame, which belongs to the field of machine tool technology. It solves the problem that the existing automatic loading and unloading device of the thin-wall drill welding machine is applicable to a small range of thin-wall drill diameters. The automatic supply device for the cylinder comprises a turntable and a supporting plate. The outer edge of the turntable is provided with a plurality of first avoidance recesses. A plurality of groups of cylinder clamping assemblies are fixed on the turntable. The plurality of first avoidance recesses are circumferentially distributed around the axis center line. The plurality of groups of cylinder clamping assemblies are arranged in one-to-one correspondence with the plurality of first avoidance recesses. The supporting plate is located below the turntable. A positioning sleeve is fixed on the supporting plate. The supporting plate is connected to the frame body by a third driving mechanism that can lift and move the supporting plate. The automatic supply device for the cylinder of the thin-wall drill welding machine frame locates the horizontal position of the thin-wall drill cylinder by the positioning sleeve. The turntable thin-wall drill and the supporting plate can both determine the height of the thin-wall drill cylinder; thereby ensuring that the installation positions of cylinders of different diameters are consistent.

Description

Technical Field

[0001] The invention belongs to the technical field of machine tools and relates to a thin-wall drill welding machine, in particular to an automatic supply device for a thin-wall drill welding machine frame cylinder. Background Art

[0002] The thin-wall drill welding frame is a special device for positioning the barrel and the cutter head when welding thin-wall drills. The inventor has proposed many related documents on thin-wall drill welding, including a cutter head clamping and positioning device and a thin-wall substrate welding device (application number 200820038094.1), which are used to clamp and position the cutter head and adjust the position of the cutter head so that the cutter head is directly opposite to the barrel. A barrel positioning device in a thin-wall drill welding machine (application number 201010173633.4) is used to clamp and position the barrel to improve the consistency of the barrel clamping state. A thin-wall drill barrel positioning device for a diamond thin-wall drill welding machine (application number 201320231148.7) allows the bottom of the barrel to swing arbitrarily when rotating, reduces the precision requirements of the thin-wall drill barrel and improves the consistency of the top surface state of the barrel. A double-station thin-wall drill welding machine (application number 201811265565.7) allows one station to be in a welding state while the other station can perform loading and unloading operations to improve processing efficiency.

[0003] The automatic loading and unloading device of the thin-wall drill welding machine (application number 202010072274.7) can place multiple workpieces on the table, so that the unprocessed workpieces can be taken away and the processed workpieces can be placed back on the table, thereby improving the processing efficiency. This technical solution has some shortcomings: 1. The diameter of the thin-wall drill is 28mm-350mm. The bottom size of the cylinder of the small-diameter thin-wall drill is greater than or equal to the diameter of the top. The diameter of the top of the cylinder of the large-diameter thin-wall drill will be greater than the bottom size, that is, the small-diameter thin-wall drill cannot be placed on the table, or the small-diameter thin-wall drill cylinder placed on the table is not conducive to automatic placement, so there is a problem of poor versatility; 2. The workpiece placed on the table is usually positioned by the side of the positioning slot. Due to the large number of thin-wall drill models, the number of positioning plates with positioning slots installed on the table is also large, which not only increases the manufacturing cost, but also affects the ease of use. Summary of the invention

[0004] The present invention proposes an automatic supply device for thin-wall drill welding rack barrels. The technical problem to be solved by the present invention is how to make the automatic supply device for thin-wall drill welding rack barrels suitable for conveying a wider range of barrel diameters and improve the versatility of the thin-wall drill welding rack.

[0005] The technical problem to be solved by the present invention can be achieved through the following technical solutions: the thin-wall drill welding frame includes a frame main body, the automatic cylinder supply device includes a horizontally arranged turntable, the turntable and the frame main body are connected by a second driving mechanism that can rotate the turntable, and it is characterized in that the outer edge of the turntable is provided with a plurality of first avoidance recesses, and a plurality of groups of cylinder clamping assemblies are fixed on the turntable, the plurality of first avoidance recesses are distributed circumferentially around the axis center line, and the plurality of groups of cylinder clamping assemblies are arranged one-to-one corresponding to the plurality of first avoidance recesses; the automatic cylinder supply device also includes a supporting plate, the supporting plate is located below the turntable, a positioning sleeve is fixed on the supporting plate, and the supporting plate and the frame main body are connected by a third driving mechanism that can lift and move the supporting plate.

[0006] When conveying the cylinder of a large-diameter thin-walled drill, the cylinder is placed on the turntable, and the connecting portion at the bottom of the cylinder is located in the first avoidance recess. This structure ensures that the cylinder is installed at the same height. The third driving mechanism is controlled to raise the supporting plate, and the bottom of the cylinder is embedded in the positioning sleeve, thereby ensuring that the position of the cylinder relative to the turntable is the same. When conveying the cylinder of a small-diameter thin-walled drill, that is, the size of the first avoidance recess is larger than the diameter of the cylinder, so that the cylinder cannot be placed on the turntable; although the cylinder is located in the positioning sleeve, the cylinder is placed on the supporting plate, and the height of the supporting plate is controlled to ensure that the installation height of the cylinder is the same. The bottom of the cylinder is embedded in the positioning sleeve to ensure that the position of the cylinder relative to the turntable is the same.

[0007] The frame body is equipped with a barrel connector, which is connected to the frame body through a first driving mechanism that enables the barrel connector to move up and down and horizontally. The process of transferring the barrel of the thin-wall drill from the positioning state to the barrel connector is as follows: the first step is to clamp the barrel using the barrel clamping assembly; the second step is to operate the third driving mechanism to lower the supporting plate until the barrel is separated from the positioning sleeve; the third step is to operate the second driving mechanism to rotate the turntable until the barrel stays in a position suitable for connecting with the barrel connector; the fourth step is to operate the first driving mechanism to make the barrel connector move up and down and horizontally to achieve the connection between the barrel and the barrel connector; the fifth step is to operate the barrel clamping assembly to release the barrel.

[0008] Compared with the prior art, the present automatic supply device for the cylinder of the thin-wall drill welding rack can locate the horizontal position of the thin-wall drill cylinder through the positioning sleeve, and the turntable and the supporting plate can determine the height of the thin-wall drill cylinder; that is, the automatic supply device for the cylinder can not only ensure the consistency of the installation position of the cylinder of the large-diameter thin-wall drill, but also ensure the consistency of the installation position of the cylinder of the small-diameter thin-wall drill. The cylinder is clamped by the cylinder clamping assembly, so that the positioning sleeve and the supporting plate can be lowered, and the cylinder is separated from the positioning sleeve and the supporting plate, and the positioning position of the cylinder is guaranteed to remain unchanged after separation. The cylinder is clamped by the cylinder clamping assembly to ensure that the position of the cylinder relative to the turntable remains unchanged during the rotation of the turntable. In summary, the present automatic supply device for the cylinder of the thin-wall drill welding rack can not only transport the cylinder of the small-diameter thin-wall drill, but also transport the cylinder of the large-diameter thin-wall drill, and both ensure that the thin-wall drill cylinder after transportation can still be connected to the positioning sleeve, thereby improving the versatility of the automatic supply device for the cylinder.

[0009] The locating sleeve can be adaptively adjusted according to the model of the thin-wall drill. No matter how many first avoidance recesses there are, that is, multiple cylinders can be installed on the turntable at the same time, only one locating sleeve is required, thereby significantly reducing the number of locating sleeves manufactured, reducing manufacturing costs and reducing the time required to replace the locating sleeves.

[0010] In the above-mentioned automatic supply device for the thin-wall drill welding frame barrel, the first avoidance recess of the turntable is fixedly connected to an auxiliary support plate by bolts, and the auxiliary support plate is provided with a second avoidance recess.

[0011] In the above-mentioned automatic supply device for the thin-wall drill welding frame barrel, the top surface of the auxiliary support plate is flush with the top surface of the turntable.

[0012] In the above-mentioned automatic supply device for the thin-wall drill welding frame barrel, the positioning sleeve is fixed to the top surface of the supporting plate by bolts.

[0013] In the above-mentioned thin-wall drill welding frame cylinder automatic supply device, the cylinder clamping assembly includes a cylinder fixed on a turntable, and a clamping arm is fixed on the piston rod of the cylinder.

[0014] In the above-mentioned automatic supply device for the thin-wall drill welding frame cylinder, the first driving mechanism includes a lifting seat and a translation seat, the lifting seat and the frame body are connected through a first lifting guide assembly and a first lifting motor assembly; the translation seat and the lifting seat are connected through a first translation guide assembly and a first translation motor assembly; the cylinder connecting piece is installed on the translation seat.

[0015] In the above-mentioned automatic supply device for the thin-wall drill welding frame barrel, the turntable is located directly in front of the lifting seat, and the translation seat moves forward and backward.

[0016] In the above-mentioned automatic supply device for the thin-wall drill welding frame barrel, when the top of the thin-wall drill barrel is in a clamping and positioning state, the first translation motor assembly drives the translation seat to move back and forth to put the thin-wall drill barrel in a vertical state.

[0017] In the above-mentioned thin-wall drill welding frame cylinder automatic supply device, the third driving mechanism includes a third lifting motor assembly, and the first lifting motor assembly and the third lifting motor assembly are both electrically connected to the control circuit; the control circuit can control the first lifting motor assembly according to the parameters of the third lifting motor assembly, and the first lifting motor assembly drives the lifting seat to rise so that the top surface of the cylinder connecting piece is flush with the top surface of the positioning sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of a thin-wall drill welding frame.

[0019] Figure 2 and Figure 5 It is a three-dimensional structural schematic diagram of the cylinder automatic supply device clamping a large-diameter cylinder in different states.

[0020] Figure 3 , Figure 4 and Figure 6 It is a structural schematic diagram of the cylinder automatic supply device clamping a large-diameter cylinder in different states.

[0021] Figure 7 and Fig.10 It is a three-dimensional structural schematic diagram of the cylinder automatic supply device clamping a large-diameter cylinder in different states.

[0022] Figure 8 , Fig. 9 and Fig.11 It is a structural schematic diagram of the cylinder automatic supply device clamping a large-diameter cylinder in different states.

[0023] In the figure, 100, the frame body; 200, the clamping and positioning device at the top of the cylinder; 300, the tool head clamping and positioning device; 400, the cylinder automatic supply device; 500, the thin-walled drill cylinder; 1, the cylinder connecting piece; 2, the turntable; 2a, the first avoidance recess; 3, the supporting plate; 4, the positioning sleeve; 5, the first driving mechanism; 5a, the lifting seat; 5b, the translation seat; 5c, the first lifting guide assembly; 5d, the first lifting motor assembly; 5e, the first translation guide assembly; 5f, the first translation motor assembly; 6, the first motor; 7, the second driving mechanism; 8, the auxiliary support plate; 8a, the second avoidance recess; 9, the cylinder clamping assembly; 9a, the cylinder; 9b, the clamping arm; 10, the third driving mechanism; 10a, the third lifting guide assembly; 10b, the third lifting motor assembly. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] The thin-wall drill welding frame includes a frame body 100, a cylinder automatic supply device 400, a cylinder top clamping and positioning device 200 and a tool head clamping and positioning device 300. The tool head clamping and positioning device 300 is located above the cylinder top clamping and positioning device 200, and the cylinder automatic supply device 400 is located below the cylinder top clamping and positioning device 200.

[0026] The cylinder automatic supply device 400 includes a cylinder connecting piece 1 , a turntable 2 , a supporting plate 3 and a positioning sleeve 4 .

[0027] The barrel connector 1 is connected to the frame body 100 through a first driving mechanism 5 that enables the barrel connector 1 to move up and down and move horizontally. The first driving mechanism 5 includes a lifting seat 5a and a translation seat 5b. The lifting seat 5a is connected to the frame body 100 through a first lifting guide assembly 5c and a first lifting motor assembly 5d, so that the lifting seat 5a can be stably lifted and moved by manipulating the first lifting motor assembly 5d. The translation seat 5b is connected to the lifting seat 5a through a first translation guide assembly 5e and a first translation motor assembly 5f, so that the translation seat 5b can be stably moved horizontally by manipulating the first translation motor assembly 5f. The accompanying drawings in the specification show that the translation seat 5b moves forward and backward, and the turntable 2 is located directly in front of the lifting seat 5a; this arrangement can simplify the structure of the first driving mechanism 5, thereby reducing the manufacturing cost.

[0028] The barrel connector 1 is an electric clamp or a pneumatic clamp, which not only ensures the automation degree of the thin-wall drill welding frame, but also facilitates the connection and separation of the barrel connector 1 and the bottom of the thin-wall drill barrel 500. The barrel connector 1 is located above the translation seat 5b, and the barrel connector 1 and the translation seat 5b are rotationally connected. The translation seat 5b is equipped with a first motor 6 that can drive the barrel connector 1 to rotate. By controlling the first motor 6, the rotation angle of the barrel connector 1 is controlled, and then the rotation angle of the thin-wall drill barrel 500 is controlled, so that the cutter heads are orderly and automatically arranged on the top surface of the thin-wall drill barrel 500.

[0029] The turntable 2 is arranged horizontally, and the turntable 2 is connected to the frame body 100 through a second driving mechanism 7 that can rotate the turntable 2. The outer edge of the turntable 2 is provided with a plurality of first avoidance recesses 2a, and the plurality of first avoidance recesses 2a are evenly distributed around the axis of the turntable 2. Thus, the second driving mechanism 7 drives the turntable 2 to rotate at the same angle each time, thereby ensuring that each first avoidance recess 2a has the same position relative to the cylinder connector 1, thereby simplifying the control structure and reducing the manufacturing cost. The drawings in the specification show that the number of the first avoidance recesses 2a is two; it is obvious that the number of the first avoidance recesses 2a can be adaptively increased according to actual conditions.

[0030] The first avoidance recess 2a of the turntable 2 is also fixedly connected with an auxiliary support plate 8 by bolts, and the auxiliary support plate 8 has a second avoidance recess 8a. Providing the auxiliary support plate 8 is equivalent to reducing the avoidance recess, so that a thin-walled drill barrel 500 with a smaller diameter can be placed on the turntable 2. The top surface of the auxiliary support plate 8 is flush with the top surface of the turntable 2, so as to ensure that the heights of the thin-walled drill barrels 500 placed on the turntable 2 are the same. It can be seen that according to the diameter of the thin-walled drill barrel 500 to be welded, the auxiliary support plate 8 can be installed or the installation support plate can be removed. An auxiliary support plate 8 is usually suitable for thin-walled drill barrels 500 with a diameter range. Even if the diameter of the thin-walled drill barrel 500 of the clamping arm 9b is 28mm-350mm, in order to ensure the versatility of the barrel automatic supply device 400, the number of auxiliary support plates 8 only needs to be 1 or 2 groups.

[0031] A plurality of groups of cylinder clamping assemblies 9 are fixed on the turntable 2, and the number of cylinder clamping assemblies 9 is the same as the number of first avoidance recesses 2a, and the plurality of groups of cylinder clamping assemblies 9 are arranged in one-to-one correspondence with the plurality of first avoidance recesses 2a. The thin-walled drill cylinder 500 clamped by the cylinder clamping assembly 9 is in a stationary state relative to the turntable 2, and the thin-walled drill cylinder 500 is located in the central area of ​​the first avoidance recess 2a, thereby reducing the possibility of interference between the thin-walled drill cylinder 500 and the turntable 2. The cylinder clamping assembly 9 includes a cylinder 9a fixed on the turntable 2, and a clamping arm 9b is fixed on the piston rod of the cylinder 9a; the attached figure of the specification shows that the cylinder 9a is a synchronous oppositely moving cylinder 9a, and a group of clamping arms 9b are fixedly connected to the two moving fingers of the synchronous oppositely moving cylinder 9a. As shown Figure 2 and Figure 7 As shown, the clamping arms 9b can be replaced according to the diameter of the thin-walled drill barrel 500, thereby increasing the diameter range of the barrel clamping assembly 9 for clamping and fixing the thin-walled drill barrel 500. One set of clamping arms 9b is usually suitable for thin-walled drill barrels 500 with a range of diameters. Even if the diameter of the thin-walled drill is 28mm-350mm, in order to ensure the versatility of the barrel automatic supply device 400, the number of sets of clamping arms 9b is limited, and the number of sets of clamping arms 9b is usually less than 4 sets.

[0032] The holding plate 3 is located below the turntable 2, so that the holding plate 3 does not affect the rotation of the turntable 2. The holding plate 3 is connected to the frame body 100 through a third driving mechanism 10 that can lift and move the holding plate 3. The third driving mechanism 10 includes a third lifting guide assembly 10a and a third lifting motor assembly 10b, so that the holding plate 3 can be stably lifted and moved by controlling the third lifting motor assembly 10b.

[0033] The positioning sleeve 4 is fixed to the top surface of the supporting plate 3 by bolts, so that the positioning sleeve 4 can be replaced according to the model of the thin-walled drill barrel 500. When one first avoidance recess 2a is in a facing state with the barrel connector 1, the positioning sleeve 4 is in a facing state with another first avoidance recess 2a, so that the barrel connector 1 and the thin-walled drill barrel 500 can be connected or separated, and people can remove the thin-walled drill and place and position the thin-walled drill barrel 500 synchronously, thereby simplifying the control and improving the conveying efficiency.

[0034] The third lifting motor assembly 10b and the first lifting motor assembly 5d are both electrically connected through a control circuit, and the control circuit can control the first lifting motor assembly 5d according to the parameters of the height of the holding plate 3 of the third lifting motor assembly 10b, so that the top surface of the barrel connector 1 is flush with the top surface of the positioning sleeve 4. The control structure and control method realize the linkage control of the third lifting motor assembly 10b and the first lifting motor assembly 5d, which can not only reduce the number of sensor elements used, reduce the manufacturing cost, but also shorten the debugging time of the barrel automatic supply device 400. The barrel connector 1 is connected or separated from the thin-walled drill barrel 500 at the rear side of the turntable 2, which is not conducive to people's observation; the positioning sleeve 4 and the holding plate 3 are located at the front side of the turntable 2, which is conducive to people's observation and measurement; by controlling the height of the holding plate 3, the position of the top surface of the positioning sleeve 4 is determined, the length of the thin-walled drill barrel 500 embedded in the positioning sleeve 4 is ensured, and the connection length between the thin-walled drill barrel 500 and the barrel connector 1 is ensured, so as to ensure that the thin-walled drill barrel 500 is firmly and stably connected to the barrel connector 1.

[0035] like Figures 2 to 11 As shown, by describing the process from a thin-wall drill barrel 500 being installed on the turntable 2 to the top of the thin-wall drill barrel 500 being clamped and positioned by the barrel top clamping and positioning device 200, the functions and advantages of each component are further explained.

[0036] like Figures 2 to 6 As shown, the diameter of the thin-walled drill tube 500 is 200 mm, and the auxiliary support plate 8 can be installed on the turntable 2, or the auxiliary support plate 8 can be removed. In short, the thin-walled drill tube 500 can be placed on the turntable 2 with or without the auxiliary support plate 8. Figures 7 to 11 As shown, the diameter of the thin-walled drill barrel 500 is 30 mm, and the thin-walled drill barrel 500 can be embedded in the second avoidance recess 8a, so that the auxiliary support plate 8 can be installed on the turntable 2, and the auxiliary support plate 8 can also be removed. Specifically, when the diameter of the thin-walled drill barrel 500 is less than 160 mm and greater than 80 mm, the auxiliary support plate 8 usually needs to be installed; when the diameter of the thin-walled drill barrel 500 is greater than 280 mm, the auxiliary support plate 8 usually needs to be removed; when the diameter of the thin-walled drill barrel 500 is less than 80 mm and greater than 40 mm, the auxiliary support plate 8 needs to be removed, and when the diameter of the thin-walled drill barrel 500 is less than 40 mm, the auxiliary support plate 8 can be installed on the turntable 2, and the auxiliary support plate 8 can also be removed.

[0037] like Figure 2 and Figure 3 As shown, in the first step, the third lifting motor assembly 10b is operated to make the supporting plate 3 in a higher position. Usually, the distance between the top surface of the positioning sleeve 4 and the bottom surface of the auxiliary supporting plate 8 is less than 3 mm, so as to ensure the length of the connecting portion of the thin-walled drill barrel 500 embedded in the positioning sleeve 4. When the thin-walled drill barrel 500 is placed on the turntable 2 from top to bottom, the end surface of the thin-walled drill barrel 500 rests on the top surface of the turntable 2, and the connecting portion of the thin-walled drill barrel 500 is located in the second avoidance recess 8a and embedded in the positioning sleeve 4, thereby achieving the support and positioning of the thin-walled drill barrel 500 relative to the turntable 2.

[0038] In the second step, the cylinder 9a of the barrel clamping assembly 9 is controlled, and the clamping arm 9b clamps the thin-walled drill barrel 500. The position of the thin-walled drill barrel 500 remains unchanged before and after being clamped, that is, the thin-walled drill barrel 500 is prevented from interfering with the turntable 2, the positioning sleeve 4 and other components.

[0039] The third step is to operate the third lifting motor assembly 10b to lower the supporting plate 3 until the thin-wall drill barrel 500 is completely separated from the positioning sleeve 4.

[0040] like Figure 4 As shown, in the fourth step, the second driving mechanism 7 is operated to rotate the turntable 2 180°, so that the thin-walled drill barrel 500 located in front of the second driving mechanism 7 is rotated to between the second driving mechanism 7 and the lifting seat 5a. The third lifting motor assembly 10b is operated to raise the supporting plate 3 until the supporting plate 3 is in a higher position.

[0041] The fifth step is to control the first lifting motor assembly 5d and the first translation motor assembly 5f to first move the barrel connector 1 to the bottom of the thin-walled drill barrel 500, and then the control circuit controls the first lifting motor assembly 5d according to the parameters of the third lifting motor assembly 10b to gradually raise the barrel connector 1 until the top surface of the barrel connector 1 is flush with the positioning sleeve 4, thereby avoiding interference between the barrel connector 1 and the turntable 2 and ensuring the connection length between the barrel connector 1 and the thin-walled drill barrel 500.

[0042] The sixth step is to operate the barrel connector 1 to clamp the thin-wall drill barrel 500 ; then operate the cylinder 9a of the barrel clamping assembly 9 and the clamping arm 9b to release the thin-wall drill barrel 500 .

[0043] like Figure 5 and Figure 6As shown, in the seventh step, the first lifting motor assembly 5d and the first translation motor assembly 5f are operated again, and the barrel connecting member 1 is first moved upward by a small distance, such as 0.5 mm, to separate the thin-walled drill barrel 500 from the turntable 2; and then the barrel connecting member 1 is moved horizontally until the thin-walled drill barrel 500 is completely separated from the turntable 2. Finally, the height of the barrel connecting member 1 is adjusted according to the height of the thin-walled drill barrel 500 so that the top of the thin-walled drill barrel 500 can be clamped by the barrel top clamping and positioning device 200, and the horizontal position of the barrel connecting member 1 is adjusted according to the diameter of the thin-walled drill barrel 500 to ensure the verticality of the thin-walled drill barrel 500.

[0044] In the eighth step, the clamping and positioning device 200 at the top of the barrel is operated to clamp and position the thin-wall drill barrel 500 .

[0045] like Figures 7 to 11 As shown, the difference between conveying a small-diameter thin-walled drill barrel 500 and conveying a large-diameter thin-walled drill barrel 500 is mainly the method of positioning the thin-walled drill barrel 500. The third lifting motor assembly 10b is controlled to make the supporting plate 3 in a suitable position, and the thin-walled drill barrel 500 is placed into the positioning sleeve 4 from top to bottom, and the bottom surface of the thin-walled drill barrel 500 rests on the supporting plate 3, thereby supporting and positioning the thin-walled drill barrel 500 relative to the turntable 2.

Claims

1. An automatic barrel supply device for a thin-wall drill welding frame, the thin-wall drill welding frame comprising a frame body (100), the barrel automatic supply device comprising a horizontally arranged turntable (2), the turntable (2) and the frame body (100) being connected via a second drive mechanism (7) capable of rotating the turntable (2), a plurality of first avoidance recesses (2a) being provided on an outer edge of the turntable (2), the plurality of first avoidance recesses (2a) being circumferentially distributed around an axis, It is characterized in that A plurality of groups of barrel clamping assemblies (9) are fixed on the turntable (2), and the plurality of groups of barrel clamping assemblies (9) are arranged in one-to-one correspondence with the plurality of first avoidance recesses (2a); the thin-walled drill barrel (500) clamped by the barrel clamping assemblies (9) is in a stationary state relative to the turntable (2), and the thin-walled drill barrel (500) is located in the central area of ​​the first avoidance recess (2a); the barrel automatic supply device also includes a supporting plate (3), the supporting plate (3) is located below the turntable (2), a positioning sleeve (4) is fixed on the supporting plate (3), the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve (4) to ensure that the position of the thin-walled drill barrel (500) relative to the turntable (2) is the same, and the supporting plate (3) and the frame body (100) are connected via a third driving mechanism (10) capable of lifting and moving the supporting plate (3); When the automatic barrel supply device conveys a small-diameter thin-walled drill barrel (500) whose diameter is smaller than the size of the first avoidance recess (2a), the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve (4), and the thin-walled drill barrel (500) is placed on the supporting plate (3), and the height of the supporting plate (3) is controlled to ensure that the installation height of the thin-walled drill barrel (500) is the same; When the barrel automatic supply device conveys the barrel of a large-diameter thin-walled drill, the thin-walled drill barrel (500) is placed on the turntable (2), the bottom of the thin-walled drill barrel (500) is located in the first avoidance recess, and the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve.

2. The automatic supply device for thin-wall drill welding frame barrel according to claim 1, It is characterized in that The cylinder automatic supply device further comprises an auxiliary support plate (8) having a second avoidance recess (8a); the auxiliary support plate (8) can be fixedly mounted at the first avoidance recess (2a) of the turntable (2) by means of bolts, the top surface of the auxiliary support plate (8) is flush with the top surface of the turntable (2), and the provision of the auxiliary support plate (8) is equivalent to reducing the avoidance recess; the auxiliary support plate (8) can also be removed; According to the diameter of the thin-walled drill barrel (500), the auxiliary support plate (8) is removed, the thin-walled drill barrel (500) is placed on the turntable (2), and the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve (4); or the auxiliary support plate (8) is installed, the thin-walled drill barrel (500) is placed on the auxiliary support plate (8), and the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve (4); or the auxiliary support plate (8) is removed, the thin-walled drill barrel (500) is placed on the supporting plate (3), and the bottom of the thin-walled drill barrel (500) is embedded in the positioning sleeve (4).

3. The automatic supply device for thin-wall drill welding frame barrel according to claim 1, It is characterized in that The positioning sleeve (4) is fixed on the top surface of the supporting plate (3) by means of bolts.

4. The automatic supply device for thin-wall drill welding frame barrel according to claim 1, It is characterized in that The cylinder clamping assembly (9) comprises a cylinder (9a) fixed on the turntable (2), and a clamping arm (9b) is fixed on the piston rod of the cylinder (9a).

5. The automatic supply device for thin-wall drill welding frame barrel according to any one of claims 1 to 4, It is characterized in that A barrel connecting piece (1) is mounted on the frame body (100), and the barrel connecting piece (1) is connected to the frame body (100) via a first driving mechanism (5). The first driving mechanism (5) can enable the barrel connecting piece (1) to move up and down and horizontally.

6. The automatic supply device for thin-wall drill welding frame barrel according to claim 5, It is characterized in that The first driving mechanism (5) comprises a lifting seat (5a) and a translation seat (5b); the lifting seat (5a) is connected to the frame body (100) via a first lifting guide assembly (5c) and a first lifting motor assembly (5d); the translation seat (5b) is connected to the lifting seat (5a) via a first translation guide assembly (5e) and a first translation motor assembly (5f); and the barrel connecting member (1) is mounted on the translation seat (5b).

7. The automatic supply device for thin-wall drill welding frame barrel according to claim 6, It is characterized in that The turntable (2) is located directly in front of the lifting seat (5a), and the translation seat (5b) moves in a forward and backward direction.

8. The automatic supply device for thin-wall drill welding frame barrel according to claim 7, It is characterized in that When the top of the thin-wall drill barrel (500) is in a clamped positioning state, the first translation motor assembly (5f) drives the translation seat (5b) to move forward and backward, thereby placing the thin-wall drill barrel (500) in a vertical state.

9. The automatic supply device for thin-wall drill welding frame barrel according to claim 6, It is characterized in that The third driving mechanism (10) comprises a third lifting motor assembly (10b), and the first lifting motor assembly (5d) and the third lifting motor assembly (10b) are both electrically connected to a control circuit; the control circuit can control the first lifting motor assembly (5d) according to the parameters of the third lifting motor assembly (10b), and the first lifting motor assembly (5d) drives the lifting seat (5a) to move upward so that the top surface of the cylinder connecting member (1) is flush with the top surface of the positioning sleeve (4).

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