A metal casting shearing device for valve stem processing

Abstract

The present invention relates to the field of valve stem cutting processing technology. The present invention discloses a metal casting shearing device for valve stem processing, comprising a main structure, a first guide component is fixedly arranged on the main structure, a second guide structure is arranged on the right side of the first guide component, and the second guide structure can move left and right, and a clamping structure is detachably arranged on the first guide component, and the clamping structure can be raised and lowered and adjusted; the present invention is easy to operate and has strong adaptability, and can realize automatic adjustment and automatic transportation of the cutting length. It has a double-station design and can realize synchronous cutting of multiple rods. It is particularly suitable for the shearing needs of large quantities of valve stem castings, significantly improves production efficiency, has multiple limit stability, ensures processing accuracy, avoids offset and shaking during transportation and cutting, ensures a smooth incision, improves processing accuracy, has a wide range of applications, and can also be extended to pipes or fittings of various shapes such as round, square, and rectangular.

Description

Technical Field

[0001] The invention relates to the technical field of valve stem cutting and processing, in particular to a metal casting shearing device for valve stem processing. Background Art

[0002] During the valve stem processing, the shearing process of metal casting rods is a key step to ensure the subsequent processing accuracy. It requires the shearing device to have stable conveying capacity, precise limit function and efficient cutting performance. At present, the existing metal casting shearing devices for valve stem processing still have many shortcomings in practical applications:

[0003] Insufficient conveying stability: Traditional shearing devices often have fixed guide structures, which are difficult to adapt to the conveying needs of rods of different lengths and diameters. When processing long rods or multiple rods simultaneously, the shaking during conveying can easily cause the rods to shift, affecting the shearing accuracy.

[0004] Poor adjustment flexibility: The clamping structure and guide assembly heights of existing devices are mostly fixed. When processing rods of different diameters, the relevant components need to be disassembled and reassembled. The adjustment process is cumbersome and time-consuming, reducing production efficiency.

[0005] Limited shearing efficiency and precision: Most shearing devices can only achieve single-station processing, which is difficult to meet the needs of mass production. Summary of the Invention

[0006] The purpose of the present invention is to solve the technical problems of unstable conveying, quantity limitation and poor size adjustment flexibility of existing metal casting shearing devices for valve stem processing, and to provide a metal casting shearing device for valve stem processing.

[0007] In order to solve the above-mentioned problem, the present invention provides the following technical solutions: a metal casting shearing device for valve stem processing, comprising a main structure, a first guide assembly is fixedly provided on the main structure, a second guide structure is provided on the right side of the first guide assembly, and the second guide structure can move left and right, and a clamping structure is detachably provided on the first guide assembly, and the clamping structure can be raised and lowered; the main structure is used for carrying and cutting, the first guide assembly is used for assisting in conveying rods and limiting the front and rear positions of multiple rods, the first guide assembly is also used for carrying the clamping structure, and the clamping structure can freely adjust the height, the clamping structure is used for applying force symmetrically front and back to tighten the rod material, and the second guide structure corresponds to the first guide assembly to assist in conveying the rod material and limiting the upper and lower positions.

[0008] Preferably, the main structure includes a main frame, a first electric slide rail, a connecting column, a second electric slide rail, a baffle, a third electric slide rail, a cutting arm, a first motor and a cutting wheel; the right end of the main frame is concave, and a moving opening is opened in the middle of the upper wall of the right end of the main frame, the first electric slide rail is fixedly arranged at the right end of the main frame and is located below the moving opening, one end of the connecting column is fixedly arranged on the first electric slide rail, and the other end of the connecting column movably passes through the moving opening, the connecting column moves left and right through the first electric slide rail, the second electric slide rail is fixedly arranged on the upper wall of the left end of the main frame and is located in front of the center line, One end of the baffle is fixedly provided on the second electric slide rail, and the other end of the baffle is located above the right end of the main frame. The third electric slide rail is a cross-shaped slide rail. The third electric slide rail is fixedly provided on the upper wall of the left end of the main frame and is located behind the second electric slide rail. One end of the cutting arm is fixedly provided on the third electric slide rail, and the cutting arm can be located in front of the second electric slide rail. The other end of the cutting arm is located above the baffle. The first motor is fixedly embedded in the other end of the cutting arm. The cutting wheel is fixedly provided on the driving end of the first motor, and the cutting wheel is located on the right side of the baffle. The lower wall of the cutting wheel is located below the other end of the baffle.

[0009] Preferably, the third electric slide rail can drive the cutting wheel on the cutting arm to move from back to front and left to right to adjust the cutting position, and the first motor drives the cutting wheel to rotate and cooperates with the movement of the cutting wheel from back to front to achieve shear force on the rod material.

[0010] Preferably, the first guide assembly includes a guide seat, a first guide roller, a second motor, an adjusting screw, a pair of first bearing seats, two pairs of first lifting columns, a second bearing seat and two pairs of second lifting columns; the guide seat is fixedly arranged on the upper wall of the middle of the main frame and is located on the left side of the moving port, a sliding groove is provided at the left end of the upper wall of the guide seat, the first guide roller is movably embedded in the right end of the guide seat, the second motor is fixedly arranged on the front arm of the guide seat, and the driving end of the second motor is connected to the first guide roller, the second motor drives the first guide roller to rotate in the guide seat, and the two ends of the adjusting screw are respectively movably penetrated through the guide The front and rear side walls of the sliding groove of the seat, one end of a pair of first bearing seats are respectively movably inserted in the sliding groove, and one end of the first bearing seats are respectively movably screwed on the adjusting screw, a pair of first bearing seats move in opposite directions or relatively, the other end of a pair of first bearing seats is located above the first guide roller, two pairs of first lifting columns are respectively symmetrically arranged on the two ends of the first bearing seat, one end of the second bearing seat is fixedly arranged in the middle of the guide seat, and the second bearing seat corresponds to the first bearing seat, two pairs of second lifting columns are respectively symmetrically arranged on the second bearing seat, and the second lifting columns are relatively parallel to the first lifting columns.

[0011] Preferably, the second guiding structure includes a second guiding component, a base, a hydraulic cylinder, a roller frame, a third motor and a second guide roller; the second guiding component is the same as the first guiding component, the second guiding component is fixedly arranged on the other end of the connecting column, and the second guiding component is located at the right end of the main frame, the base is fixedly arranged on the top of the second lifting column of the second guiding component, the hydraulic cylinder is fixedly arranged in the middle of the lower wall of the base, the roller frame is movably sleeved on the second lifting column in the second guiding component, and the middle part of the roller frame is fixedly connected to the telescopic end of the hydraulic cylinder, the third motor is fixedly arranged on the front side wall of the roller frame, and the driving end of the third motor is movably inserted in the roller frame, the second guide roller is movably embedded in the roller frame, and the second guide roller is connected to the driving end of the third motor, and the second guide roller is connected through the third motor.

[0012] Preferably, the clamping structure includes a pair of first clamping seats, a second clamping seat, a plurality of fixing bolts and a tightening assembly; the pair of first clamping seats are respectively movably mounted on the first lifting column in the first guide assembly, and the first clamping seats are symmetrical to each other, the second clamping seat is fixedly mounted on the second lifting column, and the second clamping seat is located between the first clamping seats, and a telescopic groove is provided at the bottom of the front side wall of the second clamping seat, and the plurality of fixing bolts are respectively movably screwed into the side walls of the first clamping seat and the second clamping seat, and the fixing bolts are tightened on the first lifting column and the second lifting column, and the tightening assembly is fixedly arranged on the second clamping seat.

[0013] Preferably, the tightening assembly includes a shaft rod, a push rod, a pair of push seats, a pair of springs, a gear, an electric push rod and a gear rod; one end of the shaft rod is movably inserted in the middle of the upper wall of the second clamping seat, and one end of the shaft rod is located in the telescopic slot, the push rod is fixed on one end of the shaft rod, and the push rod is located in the telescopic slot, the push rod can rotate in the telescopic slot, a pair of the push seats are movably inserted in the two ends of the telescopic slot, a pair of the springs are symmetrically arranged between the top seats, the spring is located below the push rod, the gear is fixed on the other end of the shaft rod, and the gear is located above the second clamping seat, one end of the electric push rod is fixed in the right side wall of the second clamping seat, and the telescopic end of the electric push rod is located on the right side of the second clamping seat, one end of the gear rod is fixed on the telescopic end of the electric push rod, and the other end of the gear rod is meshed with the front side of the gear.

[0014] Preferably, the electric push rod drives the gear rod to move left and right, driving the gear and the shaft rod to rotate.

[0015] Preferably, the shaft drives the top rod to rotate, causing the top seat to be extended under force.

[0016] The present invention discloses a metal casting shearing device for valve stem processing. This device addresses the problems of insufficient conveying stability, poor adjustment flexibility, and limited shearing efficiency and precision in existing valve stem processing shearing devices. By optimizing the structural design, it achieves technical improvements in many aspects. The specific beneficial effects are as follows:

[0017] 1. The second guide structure in the device can be moved left and right by the first electric slide rail, which can adapt to the transportation needs of rods of different lengths; the clamping structure can be freely adjusted in height by fixing bolts, and combined with the first bearing seat in the first guide assembly whose spacing can be adjusted by adjusting screws, it can quickly adapt to the processing of rods of different diameters and quantities without complicated disassembly, reducing the difficulty of operation and improving the adaptability of the equipment to diversified processing tasks; for example, when processing valve stems of different diameters, it is only necessary to loosen the fixing bolts, adjust the height of the clamping structure, and then tighten the fixing bolts. The operation is simple and efficient.

[0018] 2. The first guide assembly and the second guide structure work together. The first guide assembly assists in conveying the rods and limits the front and rear positions of multiple rods through the first guide roller. The second guide structure cooperates with the second guide roller and the hydraulic cylinder to achieve upper and lower limits on the rods. At the same time, the tightening assembly of the clamping structure can apply force to the rods symmetrically front and back. The multiple limiting effects avoid the deviation and shaking of the rods during the conveying and cutting process, ensure the processing accuracy, and ensure that the incision is smooth. Even when conveying long rods or multiple rods, the stable operation of the rods can be guaranteed, thereby improving the qualified rate of the products.

[0019] 3. The device adopts a double-station design. The symmetrical distribution of the first clamping seat and the second clamping seat forms two processing stations, which can realize the simultaneous cutting of multiple rods, breaking through the efficiency limitations of traditional single-station processing. It is especially suitable for the shearing needs of large quantities of valve stem castings and significantly improves production efficiency. In the same time, it can complete the cutting processing of more valve stems, meeting the needs of large-scale production.

[0020] 4. The device can automatically adjust the cutting length and cutting position according to the length of the rod through structures such as electric slide rails, and realize automatic transportation of the rod through the motor-driven guide rollers, integrating transportation, length limitation and cutting into a coherent process operation, reducing manual intervention links, reducing labor intensity, and at the same time reducing quality problems caused by human operation errors.

[0021] 5. This device is not only suitable for processing valve stems and other rod materials, but can also be expanded to process pipes and fittings in various shapes, such as round, square, and rectangular. This broadens the equipment's application scenarios and improves its comprehensive utilization rate and practical value. Its multi-rod cutting function is suitable for both large-scale production and single-piece cutting needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the cutting display structure of the present invention;

[0024] Figure 3Schematic diagram showing the first guiding assembly, the second guiding structure and the clamping structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the main structure assembly structure of the present invention;

[0026] Figure 5 It is an enlarged structural diagram of the first guide assembly of the present invention;

[0027] Figure 6 It is an enlarged structural diagram of the second guiding structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the disassembled and enlarged structure of the clamping structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the assembly structure of the first guide component and the second guide structure.

[0030] In the figure: 1. Main structure, 11. Main frame, 12. First electric slide, 13. Connecting column, 14. Second electric slide, 15. Baffle, 16. Third electric slide, 17. Cutting arm, 18. First motor, 19. Cutting wheel, 2. First guide assembly, 21. Guide seat, 22. First guide roller, 23. Second motor, 24. Adjusting screw, 25. First bearing seat, 26. First lifting column, 27. Second bearing seat, 28 , second lifting column, 3, second guide structure, 31, second guide assembly, 32, base, 33, hydraulic cylinder, 34, roller frame, 35, third motor, 36, second guide roller, 4, clamping structure, 41, first clamping seat, 42, second clamping seat, 43, fixing bolt, 44, tightening assembly, 441, shaft, 442, push rod, 443, top seat, 444, spring, 445, gear, 446, electric push rod, 447, gear rod. DETAILED DESCRIPTION

[0031] The following is combined with Figures 1-8 The specific embodiments of the present invention are described in detail:

[0032] The present invention provides a technical solution, a metal casting shearing device for valve stem processing, comprising a main structure 1, a first guide component 2 is fixedly arranged on the main structure 1, a second guide structure 3 is arranged on the right side of the first guide component 2, and the second guide structure 3 can move left and right, and a clamping structure 4 is detachably arranged on the first guide component 2, and the clamping structure 4 can be raised and lowered; the main structure 1 is used for carrying and cutting, the first guide component 2 is used for assisting in conveying rods and limiting the front and rear positions of multiple rods, the first guide component 2 is also used for carrying the clamping structure 4, and the clamping structure 4 can freely adjust the height, the clamping structure 4 is used to apply force symmetrically front and back to tighten the rod material, the second guide structure 3 corresponds to the first guide component 2, and assists in conveying the rod material and limiting the upper and lower positions.

[0033] As a further solution of the present invention, the main structure 1 includes a main frame 11, a first electric slide 12, a connecting column 13, a second electric slide 14, a baffle 15, a third electric slide 16, a cutting arm 17, a first motor 18 and a cutting wheel 19; the right end of the main frame 11 is concave, and a moving opening is opened in the middle of the upper wall of the right end of the main frame 11, the first electric slide 12 is fixedly arranged at the right end of the main frame 11 and is located below the moving opening, one end of the connecting column 13 is fixedly arranged on the first electric slide 12, and the other end of the connecting column 13 is movable through the moving opening, and the connecting column 13 moves left and right through the first electric slide 12, the second electric slide 14 is fixedly arranged on the upper wall of the left end of the main frame 11 and is located in front of the center line, one end of the baffle 15 is fixedly arranged on the second electric slide 14, and the other end of the baffle 15 is located above the right end of the main frame 11 The third electric slide rail 16 is a cross-shaped slide rail. The third electric slide rail 16 is fixedly arranged on the upper wall of the left end of the main frame 11 and is located on the rear side of the second electric slide rail 14. One end of the cutting arm 17 is fixedly arranged on the third electric slide rail 16, and the cutting arm 17 can be located in front of the second electric slide rail 14. The other end of the cutting arm 17 is located above the baffle 15. The first motor 18 is fixedly embedded in the other end of the cutting arm 17. The cutting wheel 19 is fixedly arranged on the driving end of the first motor 18, and the cutting wheel 19 is located on the right side of the baffle 15. The lower wall of the cutting wheel 19 is located below the other end of the baffle 15; the second guide structure 3 is driven to move left and right by the first electric slide rail 12, and the baffle 15 is driven to move left and right by the second electric slide rail 14 to adjust the cutting length of the valve stem. The cutting wheel 19 is driven to move left and right and forward and backward by the third electric slide rail 16 to adjust the cutting position.

[0034] As a further solution of the present invention, the first guide assembly 2 includes a guide seat 21, a first guide roller 22, a second motor 23, an adjusting screw 24, a pair of first supporting seats 25, two pairs of first lifting columns 26, a second supporting seat 27 and two pairs of second lifting columns 28; the guide seat 21 is fixedly arranged on the upper wall of the middle part of the main frame 11 and is located on the left side of the moving port. A sliding groove is provided at the left end of the upper wall of the guide seat 21. The first guide roller 22 is movably embedded in the right end of the guide seat 21. The second motor 23 is fixedly arranged on the front arm of the guide seat 21, and the driving end of the second motor 23 is connected to the first guide roller 22. The second motor 23 drives the first guide roller 22 to rotate in the guide seat 21. The two ends of the adjusting screw 24 respectively penetrate the front and rear side walls of the sliding groove of the guide seat 21. One end of a pair of first supporting seats 25 is respectively movably inserted in the sliding groove, and one end of the first supporting seat 25 is respectively movably screwed on the adjusting screw 24. A pair of first supporting seats 25 move in opposite directions or move relatively. The other end of the first supporting seat 25 is located above the first guide roller 22, and the two pairs of first lifting columns 26 are symmetrically arranged on the two ends of the first supporting seat 25, and one end of the second supporting seat 27 is fixedly arranged in the middle of the guide seat 21, and the second supporting seat 27 corresponds to the first supporting seat 25, and the two pairs of second lifting columns 28 are symmetrically arranged on the second supporting seat 27, and the second lifting columns 28 are relatively parallel to the first lifting columns 26; the first guide roller 22 is driven by the second motor 23 to rotate to assist in moving the rod material, and the first lifting columns 26 on the first supporting seat 25 block and limit the rod material, so as to realize two symmetrical workstations, and then cut multiple rod materials synchronously, and the clamping structure 4 is installed through the second lifting columns 28, and the height can be freely adjusted to suit rod materials of different diameters. By rotating the adjusting screw 24, the first supporting seat 25 is caused to move relative or toward each other, and the distance between the first lifting columns 26 and the second lifting columns 28 is adjusted for processing rod materials of different diameters and different quantities.

[0035] More specifically, the first guiding component 2 can drive the first guide roller 22 through the second motor 23 to realize automatic transportation of rod materials, and adjust the spacing of the first supporting seat 25 by adjusting the screw 24, and cooperate with the limiting function of the first lifting column 26 and the second lifting column 28 to adapt to the processing requirements of rod materials of different diameters and different quantities, while supporting dual-station synchronous operation, providing stable rod material transportation and positioning guarantees for subsequent cutting processes.

[0036] As a further solution of the present invention, the second guide structure 3 includes a second guide component 31, a base 32, a hydraulic cylinder 33, a roller frame 34, a third motor 35 and a second guide roller 36; the second guide component 31 is the same as the first guide component 2, the second guide component 31 is fixedly arranged on the other end of the connecting column 13, and the second guide component 31 is located at the right end of the main frame 11, the base 32 is fixedly arranged on the top of the second lifting column 28 of the second guide component 31, the hydraulic cylinder 33 is fixedly arranged in the middle of the lower wall of the base 32, the roller frame 34 is movably sleeved on the second lifting column 28 in the second guide component 31, and the middle of the roller frame 34 is fixedly connected to On the telescopic end of the hydraulic cylinder 33, the third motor 35 is fixedly arranged on the front side wall of the roller frame 34, and the driving end of the third motor 35 is movably inserted in the roller frame 34, and the second guide roller 36 is movably embedded in the roller frame 34, and the second guide roller 36 is connected to the driving end of the third motor 35, and the second guide roller 36 is connected through the third motor 35; the second guide roller 36 is connected through the third motor 35; the second guide assembly 31 and the first guide assembly 2 correspond to the rod material, and the second guide roller 36 is driven to descend by the hydraulic cylinder 33 to limit the upper and lower ends of the rod material, and the rod material is limited front and rear by the second guide assembly 31, and the second guide roller 36 is driven to rotate by the third motor 35 to cooperate with the second guide assembly 31 for transportation.

[0037] More specifically, the second guiding structure 3 can move left and right with the first electric slide rail 12 through the connecting column 13, and flexibly adapt to the transportation needs of rods of different lengths; the second guiding component 31 corresponds to the first guiding component 2 to form a front-to-back limit for the rod; the second guide roller 36 is driven down by the hydraulic cylinder 33 to cooperate with the lower structure to form a clamping limit in the up and down directions for the end of the rod to avoid jumping during transportation; at the same time, the third motor 35 drives the second guide roller 36 to rotate, and cooperates with the transportation power of the second guiding component 31 to ensure that the rod is stably and continuously transported to the cutting position, providing reliable protection for the cutting process.

[0038] As a further solution of the present invention, the clamping structure 4 includes a pair of first clamping seats 41, a second clamping seat 42, a plurality of fixing bolts 43 and a tightening assembly 44; the pair of first clamping seats 41 are respectively movably mounted on the first lifting column 26 in the first guide assembly 2, and the first clamping seats 41 are symmetrical with each other, the second clamping seat 42 is fixedly mounted on the second lifting column 28, and the second clamping seat 42 is located between the first clamping seats 41, and a telescopic groove is provided at the bottom of the front side wall of the second clamping seat 42, a plurality of fixing bolts 43 are respectively movably screwed into the side walls of the first clamping seat 41 and the second clamping seat 42, and the fixing bolts 43 are tightened on the first lifting column 26 and the second lifting column 28, and the tightening assembly 44 is fixedly provided on the second clamping seat 42; a symmetrical shielding is formed by the first clamping seat 41 and the second clamping seat 42, the height of the first clamping seat 41 and the second clamping seat 42 can be freely adjusted by the fixing bolts 43, and reverse symmetrical tightening is performed by the tightening assembly 44.

[0039] More specifically, the height of the clamping structure 4 can be flexibly adjusted by fixing bolts 43 to adapt to rods of different diameters; the left and right blocking limits are formed by the symmetrical distribution of the first clamping seat 41 and the second clamping seat 42, and the front and rear tightening limits are formed by the tightening assembly 44. The multiple limiting effects ensure the stability of the rod during transportation and cutting, and improve the processing accuracy; at the same time, the symmetrical structure design is adapted to the double-station processing requirements, providing reliable clamping guarantee for the synchronous cutting of multiple rods.

[0040] As a further solution of the present invention, the tightening assembly 44 includes a shaft 441, a push rod 442, a pair of push seats 443, a pair of springs 444, a gear 445, an electric push rod 446 and a gear rod 447; one end of the shaft 441 is movably inserted in the middle part of the upper wall of the second clamping seat 42, and one end of the shaft 441 is located in the telescopic groove, the push rod 442 is fixedly arranged on one end of the shaft 441, and the push rod 442 is located in the telescopic groove, and the push rod 442 can rotate in the telescopic groove, a pair of push seats 443 are movably inserted in the two ends of the telescopic groove, a pair of springs 444 are symmetrically arranged between the push seats 443, the spring 444 is located below the push rod 442, and the gear 445 is fixedly arranged on the shaft On the other end of the rod 441, the gear 445 is located above the second clamping seat 42, one end of the electric push rod 446 is fixedly set in the right side wall of the second clamping seat 42, and the telescopic end of the electric push rod 446 is located on the right side of the second clamping seat 42, one end of the gear rod 447 is fixedly set on the telescopic end of the electric push rod 446, and the other end of the gear rod 447 is meshed with the front side of the gear 445; the gear rod 447 is driven to move by the telescopic electric push rod 446, and the gear 445 and the shaft 441 are driven to rotate by the gear rod 447, so that the top rod 442 is rotated to apply force to the top seat 443 at both ends, and the top seat 443 is forced out of the telescopic slot, and then the symmetrical top seat 443 presses the rod material between the second block seat and the first block seat.

[0041] More specifically, when the electric push rod 446 contracts, it drives the gear rod 447 to move to the left, and the gear 445 rotates clockwise under the meshing action of the gear rod 447, thereby driving the shaft rod 441 and the top rod 442 to rotate clockwise; during the rotation of the top rod 442, its two ends respectively squeeze the inner ends of the two top seats 443, forcing the top seats 443 to overcome the tension of the spring 444 and slide outward along the telescopic slot, and the outer ends extend out of the telescopic slot and press against the rods on both sides to achieve symmetrical pressing and limiting; when the electric push rod 446 contracts, the top seat 443 contracts inward under the tension of the spring 444, releasing the tightening of the rod, and the electric push rod 446 drives the gear rod 447 to move left and right, driving the gear 445 and the shaft rod 441 to rotate, and the shaft rod 441 drives the top rod 442 to rotate, causing the top seat 443 to be forced to extend.

[0042] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0043] The equipment is placed stably by the main frame 11. After the equipment is powered on, one end of the rod can be passed from the right end through the first guide roller 22 and the second guide roller 36 in the guide structure, and the head end of the rod, that is, the cut end, is carried to the left by the first guide roller 22 in the first guide assembly 2;

[0044] The hydraulic cylinder 33 on the base 32 is activated, driving the roller frame 34 to descend on the second guide assembly 31, prompting the second guide roller 36 to press the rod material downward to limit the upper and lower positions. The front and rear of the rod material are blocked and limited by the first lifting column 26 and the second lifting column 28 in the first guide assembly 2 and the second guide assembly 31. In addition, the first lifting column 26 and the second lifting column 28 in the first guide assembly 2 are respectively provided with the first bearing seat 25 and the second bearing seat 27. Therefore, the rod material is positioned between the first bearing seat 25 and the second bearing seat 27.

[0045] During cutting, the second electric slide 14 is activated to move the baffle 15 left and right according to the cutting length, and the distance between the baffle 15 and the first guide roller 22 is adjusted, and the rod material is prompted to contact the baffle 15 after being extended, so that the length of the rod material is greater than the required cutting length;

[0046] The third electric slide rail 16 is then started to drive the cutting wheel 19 on the cutting arm 17 to move from the back to the front, and to the left and right to adjust the cutting position relative to the rod material, and then the first motor 18 drives the cutting wheel 19 to rotate and apply force from the back to the front to perform shearing;

[0047] After shearing, the rod material continues to be driven by the second motor 23 to drive the first guide roller 22 to rotate in the guide seat 21, and the third motor 35 drives the second guide roller 36 to rotate in the roller frame 34, so that the rod material is transported by two points of force, and continuous cutting can be achieved;

[0048] Since the first clamping seat 41 is symmetrically arranged on both sides of the second clamping seat 42 in the clamping structure 4, two working stations are formed. According to the diameter or number of the processed rod materials, the adjusting screw 24 can be rotated to force the first supporting seat 25 to move relative to or towards each other in the guide seat 21 to adjust the position, thereby achieving the adjustment of the distance between the first clamping seat 41 and the second clamping seat 42. At the same time, the height of the first clamping seat 41 and the second clamping seat 42 can also be manually adjusted on the first lifting column 26 and the second lifting column 28 located on the middle second supporting seat 27 to fit the diameter of the rod material, that is, to adjust the shielding height and the force application height of the adjusting rod 442.

[0049] The first clamping seat 41 and the second clamping seat 42 are fixed to the upper limit of the first lifting column 26 and the second lifting column 28 by fixing bolts 43; after a plurality of rods are placed between the first clamping seat 41 and the second clamping seat 42, the bottom of the rod is limited by the load of the first guide roller 22. Then, during the cutting process, the electric push rod 446 in the tightening assembly 44 is started to contract, driving the gear rod 447 to move to the left. The gear rod 447 engages with the gear 445 to drive the shaft 441 to rotate clockwise, thereby driving the ejector rod 442 to rotate clockwise. The ejector rod 442 pushes the ejector seat 443 with force at both ends, and the ejector seat 443 is extended from the second clamping seat 42 to tighten the side wall of the pipe and fix it. The cutting wheel 19 moves back and forth to apply cutting force to ensure the stability of the pipe.

[0050] When the pipe is shorter, the end of the pipe is clamped and limited by the second guide assembly 31 and the second guide roller 36. By starting the first electric slide rail 12 and using the connecting column 13 to drive the second guide structure 3 to move left and right, the end of the rod is transported and moved while being clamped by the second guide roller 36.

[0051] To sum up, the present invention is easy to operate, has strong adaptability, realizes automatic adjustment of cutting length and automatic transportation, has a double-station design, can realize synchronous cutting of multiple rods, is particularly suitable for the shearing needs of large quantities of valve stem castings, significantly improves production efficiency, has multiple limit stability, ensures processing accuracy, avoids offset and shaking during transportation and cutting, ensures smooth incisions, improves processing accuracy, has a wide range of applications, and can also be expanded to pipes or fittings of various shapes such as round, square, and rectangular.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A metal casting shearing device for valve stem processing, characterized in that: The main structure comprises a first guide assembly fixedly provided on the main structure, a second guide structure provided on the right side of the first guide assembly, and the second guide structure can move left and right, and a clamping structure detachably provided on the first guide assembly, and the clamping structure can be adjusted up and down, and the clamping structure is used to apply force symmetrically front and back to tighten the rod; The main structure includes a main frame, a first electric slide rail, a connecting column, a second electric slide rail, a baffle, a third electric slide rail, a cutting arm, a first motor and a cutting wheel; The right end of the main frame is concave, and a moving opening is opened in the middle of the upper wall of the right end of the main frame, the first electric slide rail is fixedly arranged on the right end of the main frame and is located below the moving opening, one end of the connecting column is fixedly arranged on the first electric slide rail, and the other end of the connecting column movably passes through the moving opening, and the connecting column moves left and right through the first electric slide rail, and the second electric slide rail is fixedly arranged on the upper wall of the left end of the main frame and is located in front of the center line. One end of the baffle is fixedly arranged on the second electric slide rail, and the third electric slide rail is a cross-shaped slide rail, and the third electric slide rail is fixedly arranged on the upper wall of the left end of the main frame and is located behind the second electric slide rail. One end of the cutting arm is fixedly arranged on the third electric slide rail, and the other end of the cutting arm is located above the baffle, and the first motor is fixedly embedded in the other end of the cutting arm, and the cutting wheel is fixedly arranged on the driving end of the first motor, and the cutting wheel is located on the right side of the baffle, and the lower wall of the cutting wheel is located below the other end of the baffle; The first guide assembly includes a guide seat, a first guide roller, a second motor, an adjusting screw, a pair of first bearing seats, two pairs of first lifting columns, a second bearing seat and two pairs of second lifting columns; The guide seat is fixedly mounted on the upper wall of the middle part of the main frame and is located on the left side of the moving opening, and a sliding slot is opened on the upper wall of the guide seat, the first guide roller is movably embedded in the right end of the guide seat, the second motor is fixedly mounted on the front side arm of the guide seat, and the driving end of the second motor is connected to the first guide roller, and the second motor drives the first guide roller to rotate in the guide seat; the two ends of the adjusting screw respectively pass through the front and rear side walls of the sliding slot of the guide seat, one end of a pair of first bearing seats are movably inserted in the sliding slot, and one end of the first bearing seats are movably screwed on the adjusting screw, a pair of first bearing seats move in opposite directions or relatively, and the other end of a pair of first bearing seats is located above the first guide roller, two pairs of first lifting columns are respectively symmetrically arranged on the two ends of the first bearing seat, one end of the second bearing seat is fixedly arranged in the middle of the guide seat, and the second bearing seat corresponds to the first bearing seat, and the two pairs of second lifting columns are respectively symmetrically arranged on the second bearing seat, and the second lifting column is relatively parallel to the first lifting column; The second guiding structure includes a second guiding assembly, a base, a hydraulic cylinder, a roller frame, a third motor and a second guide roller; The second guide assembly is the same as the first guide assembly. The second guide assembly is fixedly arranged on the other end of the connecting column, and the second guide assembly is located at the right end of the main frame. The base is fixedly arranged on the top of the second lifting column of the second guide assembly. The hydraulic cylinder is fixedly arranged in the middle of the lower wall of the base. The roller frame is movably sleeved on the second lifting column in the second guide assembly, and the middle part of the roller frame is fixedly connected to the telescopic end of the hydraulic cylinder. The third motor is fixedly arranged on the front side wall of the roller frame, and the driving end of the third motor is movably inserted in the roller frame. The second guide roller is movably embedded in the roller frame, and the second guide roller is connected to the driving end of the third motor. The second guide roller is connected through the third motor.

2. A metal casting shearing device for valve stem processing according to claim 1, characterized in that: The third electric slide rail can drive the cutting wheel on the cutting arm to move from back to front and left to right to adjust the cutting position. The first motor drives the cutting wheel to rotate and cooperates with the movement of the cutting wheel from back to front to achieve shear force on the rod material.

3. A metal casting shearing device for valve stem processing according to claim 2, characterized in that: The clamping structure includes a pair of first clamping seats, a second clamping seat, a plurality of fixing bolts and a tightening assembly; A pair of the first clamping seats are respectively movably mounted on the first lifting columns in the first guide assembly, and the first clamping seats are symmetrical to each other. The second clamping seats are fixedly mounted on the second lifting columns, and the second clamping seats are located between the first clamping seats. A telescopic groove is provided at the bottom of the front side wall of the second clamping seat. Several fixing bolts are respectively movably screwed into the side walls of the first clamping seat and the second clamping seat, and the fixing bolts are tightened on the first lifting column and the second lifting column. The tightening assembly is fixedly set on the second clamping seat.

4. A metal casting shearing device for valve stem processing according to claim 3, characterized in that: The jacking assembly includes a shaft, a jack, a pair of jack seats, a pair of springs, a gear, an electric push rod and a gear rod; One end of the shaft rod is movably inserted in the middle of the upper wall of the second clamp seat, and one end of the shaft rod is located in the telescopic slot, the push rod is fixed on one end of the shaft rod, and the push rod is located in the telescopic slot, and the push rod can rotate in the telescopic slot, a pair of the top seats are movably inserted in the two ends of the telescopic slot, a pair of the springs are symmetrically arranged between the top seats, and the spring is located below the push rod, the gear is fixed on the other end of the shaft rod, and the gear is located above the second clamp seat, one end of the electric push rod is fixed in the right side wall of the second clamp seat, and the telescopic end of the electric push rod is located on the right side of the second clamp seat, one end of the gear rod is fixed on the telescopic end of the electric push rod, and the other end of the gear rod is meshed with the front side of the gear.

5. A metal casting shearing device for valve stem processing according to claim 4, characterized in that: The electric push rod drives the gear rod to move left and right, and drives the gear and the shaft rod to rotate.

6. A metal casting shearing device for valve stem processing according to claim 5, characterized in that: The shaft drives the ejector rod to rotate, causing the ejector seat to be extended under force.

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