Semi-automatic plasma arc welding machine for food detection metal blocks

Abstract

The invention discloses a food detection metal block semi-automatic plasma arc welding machine, and particularly relates to the plasma arc welding production technology, the food detection metal block semi-automatic plasma arc welding machine comprises a first sliding frame, the upper end of the first sliding frame is fixedly connected with a blanking frame, a plurality of groups of second workpieces are arranged in the blanking frame, one side of the blanking frame is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with a clamping plate; a motor is fixedly connected to the upper end of the fixing plate, a motor shaft is arranged at the lower end of the motor in an extending mode, a first gear is fixedly connected to the lower end of the motor shaft, a second gear is meshed with one side of the first gear, and a plasma arc welding gun is arranged in the second gear. The motor drives the first gear to rotate anticlockwise through the motor shaft, the first gear drives the second gear to rotate clockwise, and therefore the special-shaped rotating disc is driven to rotate clockwise, automatic blanking and assembling of the first workpiece and the second workpiece are completed along with clockwise rotation of the special-shaped rotating disc, and the first workpiece and the second workpiece are automatically welded.

Description

Technical Field

[0001] The invention relates to the technical field of plasma arc welding production, and more particularly to a semi-automatic plasma arc welding machine for food detection metal blocks. Background Art

[0002] Plasma arc welding is a welding method that uses plasma arc as a heat source to melt the joints of two metals. Its advantage is that within a certain thickness range, the workpiece does not need to be grooved or leave gaps. In the field of food testing, metals used for food testing need to have a certain safety factor, such as wear resistance and corrosion resistance, and different positions have different requirements for different working environments. This metal is relatively expensive and is usually wrapped around the outside of other materials. At the same time, in order to save costs and facilitate connection with other workpieces, it is usually selected to connect with other metals or rubber plastics with higher plasticity. Food testing metal blocks are usually welded to other metals by welding. The existing semi-automatic plasma arc welding machine for food testing metal blocks only has a single welding function, and the workpieces need to be manually assembled and placed in the predetermined workstations for welding. This is not only time-consuming and labor-intensive, but also has certain risks. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a semi-automatic plasma arc welding machine for food inspection metal blocks. The technical problem to be solved by the present invention is that the existing semi-automatic plasma arc welding machine for food inspection metal blocks only has a single welding function, and requires manual assembly of the workpieces, and the assembled workpieces must be placed in a predetermined work station before welding, which is not only time-consuming and labor-intensive, but also involves certain risks.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semi-automatic plasma arc welding machine for food inspection metal blocks, comprising a first sliding frame, the upper end of the first sliding frame is fixedly connected to a blanking frame, a plurality of groups of second workpieces are installed in the blanking frame, one side of the blanking frame is fixedly connected to a fixing plate, the upper end of the fixing plate is fixedly connected to a motor, a motor shaft is extended from the lower end of the motor, a first gear is fixedly connected to the lower end of the motor, a second gear is meshed with one side of the first gear, a plasma arc welding gun is arranged in the second gear, and the plasma arc welding gun is eccentrically arranged, a special-shaped turntable is fixedly connected to the upper end of the second gear, an oblique protrusion is fixedly connected to the upper end of the special-shaped turntable, a square sliding frame is slidably connected to the blanking frame, and the square sliding frame is in contact with the special-shaped turntable, and the square sliding frame is in contact with the blanking frame. Multiple groups of third springs are fixedly connected between the material frames, the lower end of the square sliding frame is fixedly connected with an L-shaped pushing plate, the lower end of the first sliding frame is provided with a second sliding frame, the lower end of the second sliding frame is fixedly connected with a limited position frame, multiple groups of first workpieces are placed in the second sliding frame, a top plate is slidably connected in the limit frame, the lower end of the top plate is fixedly connected with a lifting rod, the lower end of the lifting rod is fixedly connected with a lifting frame, and one end of the lifting frame is located above the inclined protrusion, one side of the first sliding frame is fixedly connected with an extension limit frame, and the lifting frame is slidably connected to the extension limit frame, the lower end of the lifting frame is fixedly connected with a push rod, the lower end of the push rod is provided with a ball bearing, the first spring is fixedly connected between the limit frame and the lifting frame, and an assembling through hole is provided at the bottom of the first sliding frame, and the assembling through hole is located just above the top plate;

[0005] The special-shaped turntable is composed of a semicircle and a semi-ellipse. Four points a, b, c and d are arranged on the special-shaped turntable. Points a and c are respectively located at the two major axis endpoints of the semi-ellipse, point b is located at the minor axis endpoint of the semi-ellipse, and point d is located at the midpoint of the arc. The inclined surface of the inclined protrusion faces point b, and the plasma arc welding gun corresponds to the position of point b on the special-shaped turntable.

[0006] In a preferred embodiment, a second spring is fixedly connected to one side of the inner wall of the second sliding frame, one end of the second spring is fixedly connected to a fixed push plate, a loading port is provided at the upper end of the second sliding frame, a track groove is provided on one side of the second sliding frame, and the fixed push plate is slidably connected to the track groove.

[0007] In a preferred embodiment, two groups of second supporting legs are fixedly connected to the lower end of the second sliding frame, and the lower end of the first sliding frame is fixedly connected to the first supporting legs.

[0008] In a preferred embodiment, the first workpiece includes a rubber base, the upper end of the rubber base is fixedly connected to a metal seat, the upper end of the metal seat is provided with an arc-shaped protrusion, the second workpiece is provided with an arc-shaped groove, the second workpiece is provided with a second groove, and the first groove is provided on one side of the second groove.

[0009] Technical effects and advantages of the present invention:

[0010] The motor drives the first gear to rotate counterclockwise (with Figure 1 As a reference), the first gear drives the second gear to rotate clockwise, thereby driving the special-shaped turntable to rotate clockwise. In the initial state, point b contacts the square sliding frame, and the top rod is located directly above point b ( Figure 1 The third spring will be compressed during this process, and the square slide frame drives the L-shaped push plate to move left, and the L-shaped push plate moves away from under the blanking frame. A group of second workpieces in the blanking frame falls into the first sliding frame, and at the same time, the lifting frame is driven upward by the push rod under the inclined surface of the inclined protrusion (the upward movement height is just enough to make the first workpiece in the second sliding frame perfectly inserted into the second workpiece). At this time, the lifting rod will drive the top plate to rise, and the top plate will lift the first workpiece upward, and the first workpiece will pass through the assembly through hole and be inserted into the second workpiece, and the arc-shaped protrusion will be inserted into the arc groove, completing the assembly of the first workpiece and the second workpiece, which is convenient for subsequent semi-automatic plasma arc welding, and then from point c to point d to point a (with the square slide frame in the following figure). Figure 1 As a benchmark, the special-shaped turntable rotates 180 degrees clockwise during this process). During this process, the plasma arc welding gun will be started, and plasma arc welding will be performed on the arc groove. This process is fully automatic, and finally the welded workpiece can be manually removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a first stereoscopic view of the first state of the present invention.

[0012] Figure 2 It is a stereoscopic diagram of the second state of the present invention.

[0013] Figure 3 It is a cross-sectional view of the first state of the present invention.

[0014] Figure 4 It is a cross-sectional view of the second state of the present invention.

[0015] Figure 5 It is a top view of the first state of the present invention.

[0016] Figure 6 It is a top view of the second state of the present invention.

[0017] Figure 7 It is a first stereoscopic view of the first workpiece and the second workpiece of the present invention.

[0018] Figure 8 This is a second stereoscopic view of the first workpiece and the second workpiece of the present invention.

[0019] Fig. 9 This is the second stereoscopic diagram of the first state of the present invention.

[0020] Fig.10 It is a three-dimensional diagram of the placement table of the present invention.

[0021] The accompanying drawings are marked as follows:

[0022] 1. Blanking frame; 2. Square sliding frame; 3. First sliding frame; 4. First supporting leg; 5. Lifting frame; 6. Limiting frame; 7. Lifting rod; 8. First spring; 9. Second sliding frame; 10. Track groove; 11. Fixed push plate; 12. Second supporting leg; 13. Second spring; 14. Loading port; 15. First workpiece; 16. Second workpiece; 17. First gear; 18. Fixed plate; 19. Motor; 20. Special-shaped turntable; 21. Second gear; 22. Third spring; 23. L-shaped push plate; 24. Plasma arc welding gun; 25. Top plate; 26. Assembly through hole; 27. Oblique protrusion; 28. Rubber base; 29. ​​Metal seat; 30. Arc protrusion; 31. Arc groove; 32. First groove; 33. Second groove; 34. Extended limiting frame; 35. Top rod. DETAILED DESCRIPTION

[0023] Depend on Figure 1-10The present invention provides a semi-automatic plasma arc welding machine for metal blocks for food inspection, comprising a first sliding frame 3, a blanking frame 1 is fixedly connected to the upper end of the first sliding frame 3, a plurality of second workpieces 16 are arranged in the blanking frame 1, a fixing plate 18 is fixedly connected to one side of the blanking frame 1, a motor 19 is fixedly connected to the upper end of the fixing plate 18, a motor shaft is extended to the lower end of the motor 19, a first gear 17 is fixedly connected to the lower end of the motor shaft, a second gear 21 is meshed on one side of the first gear 17, a plasma arc welding gun 24 is arranged in the second gear 21, and the plasma arc welding gun 24 is arranged in the second gear 21. 24 is eccentrically arranged (the distance between the plasma arc welding gun 24 and the center of the second gear 21 is equal to the inner diameter of the arc groove 31), the upper end of the second gear 21 is fixedly connected to the special-shaped turntable 20, the upper end of the special-shaped turntable 20 is fixedly connected to the inclined protrusion 27, the blanking frame 1 is slidably connected to the square slide frame 2, and the square slide frame 2 is attached to the special-shaped turntable 20 (the edge of the special-shaped turntable 20 point b), a plurality of sets of third springs 22 are fixedly connected between the square slide frame 2 and the blanking frame 1, the lower end of the square slide frame 2 is fixedly connected to the L-shaped push plate 23, and the lower end of the first slide frame 3 is provided with a second The sliding frame 9 is fixedly connected to the limited position frame 6 at the lower end of the second sliding frame 9, and multiple groups of first workpieces 15 are placed in the second sliding frame 9. The limit frame 6 is slidably connected with a top plate 25, and the lower end of the top plate 25 is fixedly connected to a lifting rod 7, and the lower end of the lifting rod 7 is fixedly connected to a lifting frame 5, and one end of the lifting frame 5 is located above the inclined protrusion 27. One side of the first sliding frame 3 is fixedly connected to an extended limit frame 34, and the lifting frame 5 is slidably connected to the extended limit frame 34. The lower end of the lifting frame 5 is fixedly connected to a top rod 35, and a ball is arranged at the lower end of the top rod 35. The limit frame 6 and the lifting frame 5 are fixedly connected to the lifting frame 34. A first spring 8 is fixedly connected between the frames 5, an assembly through hole 26 is provided at the bottom of the first sliding frame 3, and the assembly through hole 26 is located just above the top plate 25; the special-shaped turntable 20 is composed of a semicircle and a semi-ellipse, and four points a, b, c, and d are provided on the special-shaped turntable 20, points a and c are respectively located at the two major axis endpoints of the semi-ellipse, point b is located at the minor axis endpoint of the semi-ellipse, and point d is located at the midpoint of the arc, the inclined surface of the oblique protrusion 27 faces point b, and the plasma arc welding gun 24 corresponds to the position of point b on the special-shaped turntable 20; the motor 19 drives the first gear 17 to rotate counterclockwise (with a rotation angle of 1 / 400) through the motor shaft Figure 1 As a reference), the first gear 17 drives the second gear 21 to rotate clockwise, thereby driving the special-shaped turntable 20 to rotate clockwise. In the initial state, point b contacts the square slide frame 2, and the top rod 35 is located directly above point b ( Figure 1 As the shaped turntable 20 rotates clockwise, it will first contact the square slide frame 2 from point b to point c (in order to Figure 1As a reference, the special-shaped turntable 20 rotates 90 degrees clockwise during this process), during this process the third spring 22 will be compressed, the square sliding frame 2 drives the L-shaped push plate 23 to move left, the L-shaped push plate 23 moves away from under the blanking frame 1, and a group of second workpieces 16 in the blanking frame 1 falls into the first sliding frame 3, and at the same time the lifting frame 5 is lifted up by the inclined surface of the inclined protrusion 27, and at the same time the lifting frame 5 is driven upward by the push rod 35 under the inclined surface of the inclined protrusion 27 (the upward movement height is just enough to make the first workpiece 15 in the second sliding frame 9 perfectly stuck in the second workpiece 16), the top plate 25 will lift the first workpiece 15 upward, the first workpiece 15 will pass through the assembly through hole 26 and be inserted into the second workpiece 16, and the arc-shaped protrusion 30 will be just inserted into the arc groove 31.

[0024] Then the special-shaped turntable 20 changes from point c to point d, and then changes from point d to point a. Figure 1 As a reference, in this process, the special-shaped turntable 20 rotates 180 degrees clockwise, and in this process, the plasma arc welding gun 24 is started to perform plasma arc welding on the arc groove 31 to fix the first workpiece 15 and the second workpiece 16.

[0025] A second spring 13 is fixedly connected to one side of the inner wall of the second sliding frame 9, and one end of the second spring 13 is fixedly connected to a fixed push plate 11. A loading port 14 is provided at the upper end of the second sliding frame 9, and a track groove 10 is provided on one side of the second sliding frame 9, and the fixed push plate 11 is slidably connected to the track groove 10; when the special-shaped turntable 20 changes from contacting the square sliding frame 2 at point a to contacting the square sliding frame 2 at point b, the lifting frame 5 will move downward due to the push rod 35 sliding down along the inclined surface of the inclined protrusion 27 during this process. The lifting frame 5 slides down under the action of the first spring 8, and the top plate 25 will drop into the limit frame 6. Under the action of the second spring 13, the fixed push plate 11 will push the first workpiece 15 to move to the left, and a group of first workpieces 15 will move back to the top plate 25 ( Figure 3 initial state shown).

[0026] The lower end of the second sliding frame 9 is fixedly connected to two groups of second supporting legs 12, and the lower end of the first sliding frame 3 is fixedly connected to the first supporting leg 4; the first workpiece 15 includes a rubber base 28, the upper end of the rubber base 28 is fixedly connected to a metal seat 29, the upper end of the metal seat 29 is provided with an arc-shaped protrusion 30, the second workpiece 16 is provided with an arc-shaped groove 31, the second workpiece 16 is provided with a second groove 33, and the first groove 32 is provided on one side of the second groove 33.

[0027] The device is used for semi-automatic welding of metal blocks for food inspection. The device is placed on a placement table ( Fig.10 )superior.

[0028] During the specific operation, the fixed push plate 11 is pulled, and multiple groups of first workpieces 15 are added to the second sliding frame 9 from the loading port 14, and multiple groups of second workpieces 16 are added to the blanking frame 1, and several groups of second workpieces 16 are placed in the first sliding frame 3 in advance. Figure 1 and Figure 5 The state shown is the initial state. The motor 19 is started, and the motor 19 drives the first gear 17 to rotate counterclockwise (in Figure 1 As a reference), the first gear 17 drives the second gear 21 to rotate clockwise (the first gear 17 is made of alloy steel), thereby driving the special-shaped turntable 20 to rotate clockwise. In the initial state, point b contacts the square slide frame 2, and the top rod 35 is located directly above point b ( Figure 1 As the shaped turntable 20 rotates clockwise, it will first contact the square slide frame 2 from point b to point c (in order to Figure 1 As a reference, the special-shaped turntable 20 rotates 90 degrees clockwise during this process), during this process the third spring 22 will be compressed, the square sliding frame 2 drives the L-shaped push plate 23 to move left, the L-shaped push plate 23 moves away from under the blanking frame 1, and a group of second workpieces 16 in the blanking frame 1 fall into the first sliding frame 3, and at the same time the lifting frame 5 is driven upward by the push rod 35 under the inclined surface of the inclined protrusion 27 (the upward movement height is just enough to make the first workpiece 15 in the second sliding frame 9 perfectly stuck in the second workpiece 16), at this time the lifting rod 7 will drive the top plate 25 to rise, the top plate 25 will push the first workpiece 15 upward, the first workpiece 15 will pass through the assembly through hole 26 and be inserted into the second workpiece 16, the arc protrusion 30 is just inserted into the arc groove 31, and the plasma arc welding gun 24 rotates to be just above the arc groove 31;

[0029] As the special-shaped turntable 20 continues to rotate clockwise, it will first contact the square slide frame 2 from point c to point d, and then contact the square slide frame 2 from point d to point a (in order to Figure 1 As a reference, the special-shaped turntable 20 rotates 180 degrees clockwise during this process), and the plasma arc welding gun 24 will be started during this process to perform plasma arc welding at the arc groove 31 to fix the first workpiece 15 and the second workpiece 16 (since the cda segment is an arc, the L-shaped push plate 23 remains stationary, thereby facilitating the welding of the arc groove 31. At the same time, the work is started when the plasma arc welding gun 24 just starts to rotate to the top of the arc groove 31, and stops when the plasma arc welding gun 24 leaves the top of the arc groove 31).

[0030] As the special-shaped turntable 20 continues to rotate clockwise, it will first contact the square slide frame 2 from point a to point b. During this process, the lifting frame 5 will move down due to the push rod 35 sliding down along the inclined surface of the inclined protrusion 27. The lifting frame 5 will slide down under the action of the first spring 8, and the top plate 25 will drop into the limit frame 6. Under the action of the second spring 13, the fixed push plate 11 will push the first workpiece 15 to move to the left, and a group of first workpieces 15 will move back to the top plate 25 ( Figure 3 The square slide frame 2 moves rightward under the action of the third spring 22, driving the L-shaped push plate 23 to push the second workpiece 16 directly below the blanking frame 1 to move rightward by one station, and a new set of second workpieces 16 moves to directly above the assembly through hole 26. The above operations are repeated to complete the automatic blanking and assembly of the first workpiece 15 and the second workpiece 16, and automatically weld the first workpiece 15 and the second workpiece 16. Finally, the first workpiece 15 and the second workpiece 16 assembly are manually taken out from the right side of the first slide frame 3.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-automatic plasma arc welding machine for metal blocks for food inspection, comprising a first sliding frame (3), characterized in that: The upper end of the first sliding frame (3) is fixedly connected to a blanking frame (1), and a plurality of groups of second workpieces (16) are arranged in the blanking frame (1). A fixing plate (18) is fixedly connected to one side of the blanking frame (1), and a motor (19) is fixedly connected to the upper end of the fixing plate (18). A motor shaft is extended from the lower end of the motor (19), and a first gear (17) is fixedly connected to the lower end of the motor shaft. A second gear (21) is meshed with one side of the first gear (17), and the second gear (21) A plasma arc welding gun (24) is arranged inside the blanking frame (1), and the plasma arc welding gun (24) is eccentrically arranged. The upper end of the second gear (21) is fixedly connected to a special-shaped turntable (20), and the upper end of the special-shaped turntable (20) is fixedly connected to an inclined protrusion (27). A square sliding frame (2) is slidably connected to the blanking frame (1), and the square sliding frame (2) is in contact with the special-shaped turntable (20). A plurality of groups of third springs (22) are fixedly connected between the square sliding frame (2) and the blanking frame (1). The lower end of the square sliding frame (2) is fixedly connected to the special-shaped turntable (20). An L-shaped push plate (23) is fixedly connected, a second sliding frame (9) is arranged at the lower end of the first sliding frame (3), a limit frame (6) is fixedly connected at the lower end of the second sliding frame (9), a plurality of first workpieces (15) are placed in the second sliding frame (9), a top plate (25) is slidably connected in the limit frame (6), a lifting rod (7) is fixedly connected at the lower end of the top plate (25), a lifting frame (5) is fixedly connected at the lower end of the lifting rod (7), and one end of the lifting frame (5) is located at the inclined protrusion ( 27), an extension limit frame (34) is fixedly connected to one side of the first sliding frame (3), and the lifting frame (5) is slidably connected to the extension limit frame (34), a top rod (35) is fixedly connected to the lower end of the lifting frame (5), a ball bearing is arranged at the lower end of the top rod (35), a first spring (8) is fixedly connected between the limit frame (6) and the lifting frame (5), an assembly through hole (26) is arranged at the bottom of the first sliding frame (3), and the assembly through hole (26) is located directly above the top plate (25); The special-shaped turntable (20) is composed of a semicircle and a semi-ellipse. Four points a, b, c and d are arranged on the special-shaped turntable (20). Points a and c are respectively located at the two major axis endpoints of the semi-ellipse, point b is located at the minor axis endpoint of the semi-ellipse, and point d is located at the midpoint of the arc. The inclined surface of the inclined protrusion (27) faces point b, and the plasma arc welding gun (24) corresponds to the position of point b on the special-shaped turntable (20).

2. A semi-automatic plasma arc welding machine for food inspection metal blocks according to claim 1, characterized in that: A second spring (13) is fixedly connected to one side of the inner wall of the second sliding frame (9), one end of the second spring (13) is fixedly connected to a fixed push plate (11), a loading port (14) is provided at the upper end of the second sliding frame (9), a track groove (10) is provided on one side of the second sliding frame (9), and the fixed push plate (11) is slidably connected to the track groove (10).

3. A semi-automatic plasma arc welding machine for food inspection metal blocks according to claim 1, characterized in that: The lower end of the second sliding frame (9) is fixedly connected to two groups of second supporting legs (12), and the lower end of the first sliding frame (3) is fixedly connected to a first supporting leg (4).

4. A semi-automatic plasma arc welding machine for food inspection metal blocks according to claim 1, characterized in that: The first workpiece (15) comprises a rubber base (28), the upper end of the rubber base (28) is fixedly connected to a metal base (29), the upper end of the metal base (29) is provided with an arc-shaped protrusion (30), the second workpiece (16) is provided with an arc-shaped groove (31), the second workpiece (16) is provided with a second groove (33), and the first groove (32) is provided on one side of the second groove (33).

5. The semi-automatic plasma arc welding machine for food inspection metal blocks according to claim 1, characterized in that: The first gear (17) is made of alloy steel.

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