阅读说明：本技术 一种锯床棒料夹持补进送给装置 (Bar clamping, supplementing and feeding device of sawing machine ) 是由 杨金岭 刘军 杨宝全 张福旺 刘维洲 杨荔 徐佐 武汉琦 刘冬冬 李宏新 吕茂强 于 2020-12-28 设计创作，主要内容包括：一种锯床棒料夹持补进送给装置,包括机架,机架上设置有棒料夹持系统,棒料夹持系统能够夹紧锯切前棒料；和棒料补进送给系统,棒料补进送给系统能够将锯切前棒料输送到锯切位置,并将锯切前棒料锯切成设定长度；和棒料输送系统,棒料输送系统能够将锯切后棒料输送到设定位置,并由机器人通过机器人夹爪夹紧并运走。该装置具有结构简单、实用性强、具有适应范围广、自动化程度高、安全稳定等突出优点。(A sawing machine bar clamping and feeding device comprises a rack, wherein a bar clamping system is arranged on the rack and can clamp bars before sawing; the bar material supplementing and feeding system can convey the bar material before sawing to a sawing position and saw the bar material before sawing into a set length; and the bar conveying system can convey the cut bar to a set position, and the cut bar is clamped and conveyed away by the robot through the robot clamping jaw. The device has the advantages of simple structure, strong practicability, wide application range, high automation degree, safety, stability and the like.)

1. A sawing machine bar clamping and feeding device is characterized by comprising a rack (9), wherein a bar clamping system is arranged on the rack (9), and the bar clamping system can clamp a bar (12) before sawing; and

the bar feeding system can convey the bar (12) before sawing to a sawing position and saw the bar (12) before sawing to a set length; and

the bar conveying system can convey the sawed bar (3) to a set position, and the bar is clamped and conveyed away by the robot (1) through the robot clamping jaw (2).

2. The sawing machine bar clamping and feeding device as claimed in claim 1, wherein the bar clamping system comprises a U-shaped frame (31), a second servo motor (15) is arranged on the U-shaped frame (31), the output end of the second servo motor (15) is fixedly connected with a left positive screw and a right positive screw (28), clamping plates (14) matched with the left positive screw and the right positive screw (28) are arranged at the left end and the right end of the left positive screw and the right positive screw (28), and bar clamping jaws (24) are arranged on the clamping plates (14).

3. The sawing machine bar clamping and feeding device as claimed in claim 2, characterized in that a second linear guide (32) is fixed on the U-shaped frame (31), and the bottom of the clamping plate (14) is arranged on the second linear guide (32).

4. The sawing machine bar clamping and feeding device as claimed in claim 3, wherein the bar feeding system comprises a vertical column frame body (21) arranged on the machine frame (9), a third servo motor (19) is arranged on the vertical column frame body (21), an output end of the third servo motor (19) is fixedly connected with a lead screw (16), the connecting lead screw (16) is provided with the U-shaped frame (31) matched with the connecting lead screw, a first linear guide rail (20) is further arranged on the vertical column frame body (21), and the U-shaped frame (31) is arranged on the first linear guide rail (20).

5. The sawing machine bar clamping and feeding device as claimed in claim 4, wherein the column frame body (21) is further provided with a sizing cylinder (34), and a piston rod of the sizing cylinder (34) is vertically and upwardly fixedly connected with a sizing cylinder (36).

6. The sawing machine bar clamping and feeding device as claimed in claim 5, wherein the bar conveying system comprises a first servo motor (10) arranged on the column frame body (21) and a roller (25) in transmission connection with the output end of the first servo motor (10).

7. The sawing machine bar clamping and feeding device as claimed in claim 6, wherein a cylinder (5) is arranged below the robot clamping jaw (2), and the output end of the cylinder (5) is vertically and upwardly fixedly connected with the bar lifting bracket (4).

8. A sawing machine bar clamp supplementary feed device according to claim 7 characterised in that the cylinder (5) is mounted on a cylinder frame (7), the cylinder frame (7) being provided with a vertically upward guide post and guide bush (6), the guide post and guide bush (6) passing through the bar lifting bracket (4) and being clearance fitted thereto.

9. The sawing machine bar clamp supplementary feed device according to claim 8, characterized in that a photoelectric switch (37) is also provided on the column frame (21).

Technical Field

The invention relates to the technical field of mechanical feeding, in particular to a bar clamping and feeding device of a sawing machine.

Background

Usually, in the production process of forging hubs, before bars are sawed, the bars need to be centrally placed on a processing preorder track, and each bar needs to be gradually supplied to a sawing machine, so that a sawing machine bar feeding and feeding device before sawing needs to be designed, so that the bars with specified equal length can be sawed, and each product can be consistently produced. The stability of the product quality is ensured, and the efficiency is further improved.

Disclosure of Invention

In view of the above, the present invention is directed to a bar clamping and feeding device for a sawing machine, which can saw aluminum or other alloy bars according to a specified length. In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a sawing machine bar clamping and feeding device comprises a rack, wherein a bar clamping system is arranged on the rack and can clamp bars before sawing; the bar material supplementing and feeding system can convey the bar material before sawing to a sawing position and saw the bar material before sawing into a set length; and the bar conveying system can convey the cut bar to a set position, and the cut bar is clamped and conveyed away by the robot through the robot clamping jaw.

In some embodiments, the bar clamping system comprises a U-shaped frame, a second servo motor is arranged on the U-shaped frame, an output end of the second servo motor is fixedly connected with a left positive screw and a right negative screw, clamping plates matched with the left positive screw and the right negative screw are arranged at the left end and the right end of the left positive screw and the right negative screw, and bar clamping jaws are arranged on the clamping plates.

In some embodiments, a second linear guide rail is fixed on the U-shaped frame, and the bottom of the clamping plate is arranged on the second linear guide rail.

In some embodiments, the bar feeding system comprises an upright frame body arranged on the frame, a third servo motor is arranged on the upright frame body, the output end of the third servo motor is fixedly connected with a lead screw, a U-shaped frame matched with the lead screw is arranged on the lead screw, a first linear guide rail is further arranged on the upright frame body, and the U-shaped frame is arranged on the first linear guide rail.

In some embodiments, the column frame body is further provided with a sizing cylinder, and a piston rod of the sizing cylinder is vertically and upwards fixedly connected with a sizing.

In some embodiments, the bar conveying system comprises a servo motor arranged on the upright frame body and a roller in transmission connection with an output end of the servo motor.

In some embodiments, a cylinder is arranged below the robot clamping jaw, and an output end of the cylinder is fixedly connected with the bar lifting bracket vertically upwards.

In some embodiments, the cylinder is mounted on a cylinder frame, which is provided with a vertically upward guide post and guide sleeve that passes through and is clearance fit with the bar lifting bracket.

In some embodiments, a photoelectric switch is further disposed on the column frame.

Compared with the prior art, the bar clamping and feeding device of the sawing machine has the following advantages:

the aluminum or other alloy bars can be sawed according to the specified sawing length, and the aluminum or other alloy bars can be stably sawed in a fixed length on the sawing track. The efficiency is improved, the manpower is saved, and the device simple structure, practicality are strong, have application scope wide, degree of automation is high, outstanding advantage such as safe and stable.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.

FIG. 1 is a front view of a bar clamping and feeding device of a sawing machine of the present invention.

FIG. 2 is a right side view of a bar clamping and feeding apparatus of a sawing machine of the present invention.

Description of reference numerals:

1-robot, 2-robot gripper, 3-sawed bar, 4-bar lifting bracket, 5-cylinder, 6-guide post and guide sleeve, 7-cylinder frame, 8-chain wheel and chain, 9-frame, 10-servo motor I, 33-motor fixing bracket, 34-sizing cylinder, 35-piston rod, 36-sizing, 37-photoelectric switch, 11-saw blade, 12-sawed bar, 13-bearing assembly I, 14-clamping plate, 15-servo motor II, 16-lead screw, 17-speed reducer, 18-coupler, 19-servo motor III, 20-linear guide rail I, 21-upright frame, 22-adjustable base, 23-chain wheel, 24-bar gripper, 25-roller, 26-bearing assembly II, 27-transmission shaft, 28-left and right positive and negative lead screws, 29-coupling I, 30-speed reducer I, 31-U-shaped frame and 32-linear guide rail II.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A bar clamping and feeding device for a sawing machine according to an embodiment of the present invention will be described with reference to fig. 1 to 2.

A sawing machine bar clamping and feeding device comprises a rack 9, wherein a bar clamping system is arranged on the rack 9 and can clamp a bar 12 before sawing; the bar material supplementing and feeding system can convey the bar material 12 before sawing to a sawing position and saw the bar material 12 before sawing into a set length; and the bar conveying system can convey the sawed bar 3 to a set position, and the bar is clamped and conveyed away by the robot 1 through the robot clamping jaw 2. The bar clamping system comprises a U-shaped frame 31, a servo motor II 15 is arranged on the U-shaped frame 31, the output end of the servo motor II 15 is fixedly connected with a left positive screw 28 and a right positive screw 28, clamping plates 14 matched with the left positive screw 28 and the right positive screw 28 are arranged at the left end and the right end, and bar clamping jaws 24 are arranged on the clamping plates 14. A second linear guide rail 32 is fixed on the U-shaped frame 31, and the bottom of the clamping plate 14 is arranged on the second linear guide rail 32. The bar material supplementing and feeding system comprises an upright frame body 21 arranged on the rack 9, a servo motor III 19 is arranged on the upright frame body 21, the output end of the servo motor III 19 is fixedly connected with a lead screw 16, a U-shaped frame 31 matched with the lead screw 16 is arranged on the connecting lead screw 16, a linear guide rail I20 is further arranged on the upright frame body 21, and the U-shaped frame 31 is arranged on the linear guide rail I20. The column frame 21 is further provided with a fixed length cylinder 34, and a piston rod of the fixed length cylinder 34 is vertically and upwards fixedly connected with a fixed length 36. The bar conveying system comprises a first servo motor 10 arranged on the upright post frame body 21 and a roller 25 in transmission connection with the output end of the first servo motor 10. And a cylinder 5 is arranged below the robot clamping jaw 2, and the output end of the cylinder 5 is vertically and upwards fixedly connected with a bar lifting bracket 4. The cylinder 5 is arranged on a cylinder rack 7, a guide pillar guide sleeve 6 which is vertically upward is arranged on the cylinder rack 7, and the guide pillar guide sleeve 6 penetrates through the bar lifting bracket 4 and is in clearance fit with the bar lifting bracket. The column frame 21 is also provided with a photoelectric switch 37.

In one embodiment, as shown in fig. 1, the robot 1 is placed on a floor base and the robot gripping jaws 2 are placed on the arm of the robot 1. The bar lifting bracket 4 is connected to a piston rod of the air cylinder 5, the guide pillar guide sleeve 6 is arranged on the air cylinder rack 7, and the air cylinder 5 is arranged in the air cylinder rack 7. The chain wheel and the chain 8 are combined to rotate to drive the roller 25 to rotate and move, the roller 25 is arranged in the rack 9, power of the roller comes from the servo motor I10, the motor fixing support 33 is fixed to the left side of the upright frame body 21 in a welding mode, the sizing air cylinder 34 is fixed to the side of the upright frame body 21 in a welding mode, the end of the piston rod 35 is fixedly connected to the sizing rod 36, the photoelectric switch 37 is fixed to the end side of the upper end face of the rack 9, the bearing assembly I13 is fixed to the inner side of the upright frame body 21. The clamping plate 14 is arranged on the linear guide rail II 32 to slide, a main shaft of a servo motor II 15 is connected with main shafts of a coupling I29 and a speed reducer I30 and is connected with the left ends of left and right positive and negative screw rods 28, and the left and right positive and negative screw rods 28 penetrate through a bearing assembly II 26 and penetrate through the clamping plate 14 (one left and one right) left and right to realize positive and negative rotation centering clamping or loosening of the bar stock 12 before sawing. The left end of the screw 16 is arranged in the bearing assembly I13 to rotate. The right end of the screw rod 16 penetrates through the U-shaped frame 31 to be connected with a speed reducer 17 in a threaded mode, the speed reducer 17 is connected with a main shaft of a coupler 18, and the main shaft of the coupler 18 is connected with a main shaft of a servo motor III 19. The U-shaped frame 31 is arranged on the first linear guide rail 20, the lower end of the upright frame body 21 is connected with the adjustable base 22 and is arranged on the ground, and the bar clamping jaw 24 is connected with the end sides (one left side and one right side) of the clamping plates 14 through bolts. The chain wheel 23 and the roller 25 pass through a transmission shaft 27, and the transmission shaft 27 is arranged in the frame 9.

In another embodiment, the operation of the sawing machine bar clamping and feeding device comprises:

the first step is as follows: firstly, a whole long bar is placed on the rear (right) end of a row track formed by rollers 25, a servo motor II 15 rotates to drive a left positive screw 28 and a right negative screw 28 to rotate, and clamping plates 14 (one left and one right) slide on a linear guide rail II 32 to drive bar clamping jaws 24 (one left and one right) to clamp the bar 12 before sawing in the middle. Then the piston rod 35 of the sizing cylinder 34 drives the sizing cylinder 36 to lift up to extend out of the row track formed by the roller 25 to block the left end of the bar 12.

The second step is that: the servo motor III 19 drives the screw rod 16 to rotate and drive the U-shaped frame 31 to slide forwards on the linear guide rail I20. Before being clamped and sawed, the left end of the bar stock 12 is abutted against the right end face of the fixed length 36, and a photoelectric switch signal (not shown in the figure) is fed back to a servo motor III 19 to stop the U-shaped frame 31 from moving forwards and sliding on the linear guide rail I20. The downward motion of the blade 11 cuts away the nominal design length of the head of the bar 12 prior to sawing. After the bar 12 is cut off, the servo motor III 19 continues to drive the screw rod 16 to rotate to drive the U-shaped frame 31 to slide forwards on the linear guide rail I20, the bar 12 moves forwards together before being clamped and sawed, and the servo motor III 19 stops rotating the bar 12 before being sawed after the forward distance reaches the forward distance controlled by the servo motor III 19 tail end encoder. The saw blade 11 moves downwards to saw a section of the bar stock 12 with a fixed length, namely the sawed bar stock 3, and the saw blade 11 moves upwards.

The third step: the servo motor I10 rotates to drive the chain wheel and the chain 8 to rotate, the front row of 12 rollers 25 rotate to drive the sawed bar 3 to move forwards to the bar lifting bracket 4, and the side photoelectric switch 37 feeds back a signal to the servo motor I10 to stop rotating. Under the guiding action of the guide post and the guide sleeve 6, the bar lifting bracket 4 connected with the piston rod of the air cylinder 5 lifts the sawed bar 3. The robot 1 clamps the cut bar, namely the cut bar 3, away, and the piston rod of the air cylinder 5 retracts. After the sawing is finished, the servo motor III 19 continues to drive the screw rod 16 to rotate to drive the U-shaped frame 31 to slide forwards on the linear guide rail I20, the clamped and sawed bar 12 moves forwards together, and the distance of the forward movement is controlled by the encoder at the end of the servo motor III 19 according to the sawing length, and the servo motor III 19 stops rotating and stops moving the bar 12 before the sawing. The saw blade 11 moves downwards to saw the next section of the bar stock 12 with a fixed length, and the robot 1 clamps the sawed bar stock away. Distributing the material to different subsequent tracks or procedures, and repeatedly realizing the sawing of the long-length bars.

Compared with the prior art, the bar clamping and feeding device of the sawing machine has the following advantages:

the aluminum or other alloy bars can be sawed according to the specified sawing length, and the aluminum or other alloy bars can be stably sawed in a fixed length on the sawing track. The efficiency is improved, the manpower is saved, and the device simple structure, practicality are strong, have application scope wide, degree of automation is high, outstanding advantage such as safe and stable.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.