Spring bar cutting apparatus

Abstract

The utility model belongs to spring bar piece processing technical field especially relates to a kind of spring bar piece cutting equipment, including processing table, and the processing table top is equipped with processing frame, and the right end of the middle part of processing table top surface is equipped with conveying device, and the left end of the middle part of processing table top surface is equipped with limiting device, and the middle part of processing table top surface is close to being equipped with clamping device, and the conveying device includes conveying structure and adjusting structure, and the adjusting structure is installed in the middle part and top of the front of conveying structure, and the adjusting structure includes adjusting plate, and the middle part of the left and right sides of adjusting plate is equipped with limiting strip, and the middle part of the front of adjusting plate is close to top end and is equipped with moving plate, and the middle part of moving plate is equipped with adjusting rod, and the bottom end of adjusting rod is connected with fixed plate.The spring bar piece cutting equipment is set by conveying device, the distance between bottom wheel and top wheel is adjusted using adjusting rod, so that it is convenient to flexibly adjust along with the size of bar piece, and the stable conveying effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of spring rod processing technology, specifically a spring rod cutting device. Background Technology

[0002] In the field of spring manufacturing, spring rod cutting equipment, as a key piece of equipment for raw material pretreatment, has formed a mature technological system and is widely used in industrial production. In existing technologies, this type of equipment integrates precision feeding, stable positioning, and efficient cutting technologies to achieve standardized processing of spring raw materials such as steel wire and steel rods.

[0003] Currently, the equipment is adaptable to multiple specifications and can accommodate rods of different materials with diameters ranging from 0.5 to 50 mm, including carbon steel, stainless steel, and alloy materials. Cutting methods are becoming increasingly diversified, with technologies such as abrasive wheel cutting, laser cutting, and saw blade cutting each having their own focus, meeting the needs of different scenarios such as efficient processing of large-diameter rods and precision cutting of thin rods.

[0004] Spring rod cutting equipment is a specialized device used to cut metal rods such as steel wire and steel bars into specific lengths to meet the needs of subsequent spring processing such as winding, forming, and heat treatment. Its design must balance cutting accuracy, efficiency, material adaptability, and operational safety.

[0005] However, existing technologies require cutting spring rods of different diameters, and the cutting process requires feeding and conveying the spring rods. Existing cutting equipment does not allow for flexible adjustment of the conveying structure.

[0006] Therefore, we urgently need to provide a spring rod cutting device. Utility Model Content

[0007] The purpose of this utility model is to provide a spring rod cutting device to solve the problem mentioned in the background art that the existing technology requires cutting spring rods of different diameters, and the spring rods need to be fed and conveyed during the cutting process. The existing cutting equipment is not convenient for flexible adjustment of the conveying structure.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a spring rod cutting device, including a processing table, a processing frame installed on the top of the processing table, a conveying device installed at the right end of the middle of the top surface of the processing table, a limiting device installed at the left end of the middle of the top surface of the processing table, and a clamping device installed near the middle of the top surface of the processing table.

[0009] The conveying device includes a conveying structure and an adjusting structure, wherein the adjusting structure is installed at the center and top of the front of the conveying structure.

[0010] The adjustment structure includes an adjustment plate, with limit strips installed in the middle of the left and right sides of the adjustment plate. A movable plate is installed in the middle of the front of the adjustment plate near the top, and an adjustment rod is installed in the middle of the movable plate. A fixed plate is connected to the bottom end of the adjustment rod.

[0011] Preferably, the conveying structure includes a conveying frame, a bottom wheel is installed at the bottom of the conveying frame, a top wheel is provided at the top of the bottom wheel, and a rotary motor is connected to one end of the back of the top wheel.

[0012] Preferably, the bottom of the conveyor frame is fixedly connected to the center of the top surface of the processing table near the right end. The bottom wheel is connected to the conveyor frame via bearings, and the top wheel is connected to the center of the adjusting plate via bearings. The rotary motor is detachably mounted on the back of the adjusting plate. The outer surface of the limiting strip is slidably connected to the inside of the convex groove on the top of the conveyor frame. The bottom end of the adjusting rod is rotatably connected to the center of the fixed plate. The fixed plate is fixedly mounted on the center of the front of the conveyor frame near the bottom end. There are two bottom wheels, which are installed in a triangular pattern with the top wheel. The outer surface of the bottom wheel and the top wheel has an arc-shaped groove. The outer surface of the adjusting rod has a thread, and the outer surface of the adjusting rod is threaded to the center of the moving plate. The rotary motor is model ECMA-C20604RS.

[0013] Preferably, the limiting device includes a limiting box, an electric push rod is installed in the middle of the left end of the limiting box, a slider is connected to the output end of the electric push rod, and a limiting plate is installed on the top of the slider.

[0014] Preferably, the bottom of the limiting box is fixedly connected to the middle of the top surface of the processing table near the left end, the electric push rod is detachably installed in the middle of the left end of the limiting box, and the outer surface of the slider is slidably connected to the inner wall of the limiting groove in the middle of the limiting box. The model of the electric push rod is LA35-050-22-06.

[0015] Preferably, the clamping device includes a hydraulic cylinder, a ferrule is installed at the output end of the hydraulic cylinder, a clamping block is installed in the middle of the ferrule on the side away from the hydraulic cylinder, and a clamping head is installed on the side of the clamping block away from the ferrule.

[0016] Preferably, the outer surface of the clamping block and the middle of the clamping sleeve have a convex groove for internal engagement. The bottom hydraulic cylinder is mounted on the bottom of the top of the processing table, and the top hydraulic cylinder is mounted on the bottom of the top of the processing frame. The clamping sleeve and the clamping block are fixed and secured by bolts. The hydraulic cylinder model is SMCMDBB50-75Z-FA.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This spring rod cutting equipment, through the setting of the conveying device, uses the adjusting rod to adjust the distance between the bottom wheel and the top wheel, thereby facilitating flexible adjustment according to the size of the rod and ensuring a stable conveying effect.

[0019] 2. This spring rod cutting equipment, through the setting of a limiting device and a clamping device, uses a limiting plate to perform assisted fixed-length cutting of the rod, and uses a clamping head to ensure stability during the cutting process, thereby improving the cutting effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 This is an enlarged view of the conveying device of this utility model;

[0022] Figure 3 This is an enlarged view of the adjustment structure of this utility model;

[0023] Figure 4 This is an enlarged view of the limiting device of this utility model;

[0024] Figure 5 This is an enlarged view of the clamping device of this utility model.

[0025] In the diagram: 1. Processing table; 2. Processing frame; 101. Conveyor frame; 102. Bottom wheel; 103. Top wheel; 104. Rotary motor; 105. Adjusting plate; 106. Limiting bar; 107. Moving plate; 108. Adjusting rod; 109. Fixing plate; 201. Limiting box; 202. Electric push rod; 203. Slider; 204. Limiting plate; 301. Hydraulic cylinder; 302. Sleeve; 303. Clamping block; 304. Clamping head. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] The existing technology requires cutting spring rods of different diameters, and the cutting process necessitates feeding and conveying the spring rods. However, current cutting equipment lacks flexibility in adjusting the conveying structure. Please refer to [the relevant documentation / reference needed]. Figures 1-5The embodiment provides a spring rod cutting device that can effectively improve the flexibility of conveying and the stability during the conveying process. The spring rod cutting device includes a processing table 1, a processing frame 2 installed on the top of the processing table 1, a conveying device installed at the right end of the middle of the top surface of the processing table 1, a limiting device installed at the left end of the middle of the top surface of the processing table 1, and a clamping device installed near the middle of the top surface of the processing table 1.

[0029] The conveying device includes a conveying structure and an adjusting structure. The adjusting structure is installed at the center and top of the front of the conveying structure. The adjusting structure includes an adjusting plate 105, with limit strips 106 installed at the center of the left and right sides of the adjusting plate 105. A movable plate 107 is installed near the top of the center of the front of the adjusting plate 105, and an adjusting rod 108 is installed in the center of the movable plate 107. A fixed plate 109 is connected to the bottom end of the adjusting rod 108. The conveying structure includes a conveying frame 101, with bottom wheels 102 installed at the bottom of the conveying frame 101. A top wheel 103 is installed at the top of the bottom wheels 102, and a rotary motor 104 is connected to one end of the back of the top wheel 103.

[0030] The bottom of the conveyor frame 101 is fixedly connected to the middle of the top surface of the processing table 1 near the right end. The bottom wheel 102 is connected to the conveyor frame 101 through a bearing. The top wheel 103 is connected to the middle of the adjusting plate 105 through a bearing. The rotary motor 104 is detachably installed on the back of the adjusting plate 105. The outer surface of the limiting strip 106 is slidably connected to the inside of the convex groove on the top of the conveyor frame 101. The bottom end of the adjusting rod 108 is limited and rotatably connected to the middle of the fixed plate 109. The fixed plate 109 is fixedly installed on the middle of the front of the conveyor frame 101 near the bottom end.

[0031] By setting up the conveying device, the distance between the bottom wheel 102 and the top wheel 103 can be adjusted using the adjusting rod 108, which facilitates flexible adjustment according to the size of the rod and ensures a stable conveying effect.

[0032] The bottom wheel 102 and top wheel 103 are made of high-hardness alloy steel (such as 40Cr), and the surface is hardened (hardness reaches HRC55-60) to improve wear resistance. They are suitable for conveying spring rods with diameters of 0.5-50mm. The radius of the arc groove is designed according to the diameter of the rod, ranging from 0.25-25mm, and the surface roughness of the groove is ≤Ra0.8μm to ensure a tight fit between the rod and the wheel body and prevent conveying deviation. A rotary motor 104 (model ECMA-C20604RS) is also included. The top wheel 103 is connected to the shaft end via a coupling, and the motor output end is equipped with a planetary reducer (reduction ratio 1:10-1:50). The conveying speed (0.5-5m / min) can be adjusted according to the material and diameter of the rod. The outer surface thread specification of the adjusting rod 108 is M16×2. During adjustment, the top wheel 103 is raised and lowered by rotating the moving plate 107, with an adjustment accuracy of ±0.1mm. After adjustment, the adjusting rod 108 is locked by the locking bolt on the side of the fixing plate 109 to prevent loosening during operation.

[0033] When conveying the rod, the rod is placed inside the arc-shaped groove in the middle of the outer surface of the bottom wheel 102 and the top wheel 103. Then, the adjusting rod 108 is rotated to drive the moving plate 107 and the adjusting plate 105 to move. Since the outer surface of the limiting strip 106 is slidably connected to the convex groove in the middle of the top surface of the conveyor frame 101, the adjusting plate 105 drives the top wheel 103 to descend, thereby adjusting the distance between the top wheel 103 and the bottom wheel 102 to clamp the rod. Then, the rotary motor 104 is started to drive the top wheel 103 to rotate, so as to achieve stable conveying of the rod.

[0034] Example 2:

[0035] Based on Implementation 1, existing technologies still have the problem of needing to limit and adjust the cutting length when cutting rods, and ensuring stability during the cutting process. Please refer to [the relevant documentation]. Figures 1-5 This embodiment provides a spring rod cutting device that can effectively solve the problem of cutting rods to a fixed length while ensuring stability during the cutting process. The spring rod cutting device includes a limiting device comprising a limiting box 201. An electric push rod 202 is installed at the middle of the left end of the limiting box 201. A slider 203 is connected to the output end of the electric push rod 202, and a limiting plate 204 is installed on the top of the slider 203. The bottom of the limiting box 201 is fixedly connected to the middle of the top surface of the processing table 1 near the left end. The electric push rod 202 is detachably installed at the middle of the left end of the limiting box 201. The outer surface of the slider 203 is slidably connected to the inner wall of the limiting groove in the middle of the limiting box 201.

[0036] The clamping device includes a hydraulic cylinder 301, a ferrule 302 installed at the output end of the hydraulic cylinder 301, a clamping block 303 installed in the middle of the side of the ferrule 302 away from the hydraulic cylinder 301, and a clamping head 304 installed in the side of the clamping block 303 away from the ferrule 302. The outer surface of the clamping block 303 engages with the inside of a convex groove in the middle of the ferrule 302. The bottom hydraulic cylinder 301 is installed at the top and bottom of the processing table 1, and the top hydraulic cylinder 301 is installed at the top and bottom of the processing frame 2.

[0037] By setting up a limiting device and a clamping device, the limiting plate 204 is used to assist in the fixed-length cutting of the rod, and the clamping head 304 is used to ensure the stability of the cutting process and improve the cutting effect.

[0038] The electric actuator 202 has an effective stroke of 0-500mm, and precise displacement control is achieved through a PLC control system with a positioning error ≤ ±0.5mm. A 5mm thick polyurethane buffer pad is attached to the side of the limit plate 204 near the actuator to prevent impact damage. Linear guide rails (model THKSR15) are installed on both sides of the slider 203, cooperating with the guide rail grooves in the limit box 201 to ensure smooth slider movement with a friction coefficient ≤ 0.003, preventing the limit plate 204 from shifting and affecting the length accuracy. The hydraulic cylinder 301 has a working pressure of 0.5-1.0MPa and a maximum clamping force of 5000N. The clamping force (50-5000N) is adjusted via the hydraulic system according to the actuator diameter and material to prevent excessive clamping that could deform the actuator or excessive looseness that could affect stability. The clamping head 304 and the locking block 303 are connected by countersunk bolts, allowing for quick disassembly and replacement. The inner side of the clamping head 304 is equipped with a removable rubber pad (Shore A60-80 hardness). The pad surface is designed in an arc or V-shape according to the shape of the rod, adapting to spring rods with different cross-sections such as round and square. A cutting assembly, including a cutting motor, cutting tools, and a lifting mechanism, is installed in the middle of the processing frame 2. Different tools are adapted according to the material and diameter of the rod: "Rods with a diameter ≤10mm use a laser cutting head (power 500-1000W), with a cutting accuracy of ±0.05mm; rods with a diameter >10mm use a high-speed steel saw blade (60-120 teeth) or an abrasive wheel (diameter 300-400mm), with a saw blade speed of 2000-5000r / min." The cutting assembly is driven by a servo motor (Panasonic A6 series) to drive a ball screw for lifting, with a lifting stroke of 0-200mm and a positioning accuracy of ±0.02mm, ensuring precise control of the cutting depth. The equipment is equipped with a PLC control system (Siemens S7-1200 model), which detects the position of the rod through sensors: when the rod touches the limit plate (204), the sensor sends a signal, the conveying device stops running, the clamping device starts clamping, and then the cutting device descends to complete the cutting; after the cutting is completed, the clamping device releases, the conveying device restarts, and enters the next working cycle. The response time of the whole process is ≤0.5s. A transparent acrylic protective plate is installed on the outside of the processing rack 2 to prevent cutting chips from flying. The equipment is equipped with an emergency stop button (installed on both sides of the front end of the processing table 1) and an overload protection device. When the clamping force or cutting load exceeds the set value, the equipment will automatically stop to avoid damage to parts or safety accidents. A chip removal groove is opened in the middle of the processing table 1, with the bottom of the groove inclined at an angle of 15°. In conjunction with the bottom spiral chip conveyor (model JX-100), the chips are transported to the collection box, with a chip removal efficiency of ≥10kg / h. 2. Cooling: A spray cooling system is installed in the cutting area, using emulsion (concentration 5%-8%) to cool the tools and rods. The cooling pump flow rate is 5L / min to prevent the tools from overheating and wearing, while improving the surface finish of the cut.

[0039] When cutting the rod, the electric push rod 202 is activated to drive the slider 203 to slide inside the limiting groove in the middle of the limiting box 201, thereby adjusting the position of the limiting plate 204 and limiting the conveyed rod to ensure the fixed length cutting of the rod. After the rod is limited to a fixed length, the hydraulic cylinder 301 is activated to drive the sleeve 302 and the clamping block 303 to move, thereby using the two clamping heads 304 to clamp and fix the rod, ensuring the stability of the cutting process and improving the cutting quality. The detachable installation of the clamping block 303 and the sleeve 302 makes it easy to replace the clamping head 304 according to the size and shape of the rod, thereby improving the stability of the clamping effect.

[0040] After installation, the positioning accuracy of the limit plate 204 (calibrated by standard gauge blocks), the concentricity of the clamping device (error ≤ 0.1 mm), and the perpendicularity of the cutting device (error ≤ 0.05 mm / m) need to be calibrated. Check the wear of the bottom wheel 102 and top wheel 103 weekly (replace if wear exceeds 0.5 mm), clean the linear guide rail monthly and add grease (lithium-based grease), and check the oil level and sealing of the hydraulic system quarterly.

[0041] Carbon steel (e.g., Q235): Cutting speed can be set to 3-5 m / min, clamping force 200-1000 N; Stainless steel (e.g., 304): Due to the high hardness of the material, the cutting speed is reduced to 1-3 m / min, the clamping force is increased to 500-2000 N, and the cooling system flow rate needs to be increased to 8 L / min during cutting; Alloy materials (e.g., 60Si2Mn): When using laser cutting, the power is adjusted to 800-1000 W, and the cutting speed is 0.5-2 m / min.

[0042] For rods with a diameter of 5mm: adjust the distance between the top wheel 103 and the bottom wheel 102 to 5.2mm, leaving a 0.2mm gap, and use an arc-shaped clamping pad with a radius of 2.5mm for the clamping head 304. Set the cutting speed to 4m / min. For rods with a diameter of 30mm: adjust the distance between the top wheel 103 and the bottom wheel 102 to 30.3mm, and use an arc-shaped clamping pad with a radius of 15mm for the clamping head 304. Use a grinding wheel for cutting at a speed of 3000r / min and a cutting speed of 1.5m / min.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A spring rod cutting device, comprising a processing table (1), wherein a processing frame (2) is mounted on the top of the processing table (1), characterized in that: A conveying device is installed at the right end of the middle of the top surface of the processing table (1), a limiting device is installed at the left end of the middle of the top surface of the processing table (1), and a clamping device is installed near the middle of the top surface of the processing table (1). The conveying device includes a conveying structure and an adjusting structure, wherein the adjusting structure is installed at the center and top of the front of the conveying structure. The adjustment structure includes an adjustment plate (105), with limit strips (106) installed in the middle of the left and right sides of the adjustment plate (105), and a movable plate (107) installed in the middle of the front of the adjustment plate (105) near the top. An adjustment rod (108) is installed in the middle of the movable plate (107), and a fixed plate (109) is connected to the bottom end of the adjustment rod (108).

2. The spring rod cutting device according to claim 1, characterized in that: The conveying structure includes a conveyor frame (101), a bottom wheel (102) is installed at the bottom of the conveyor frame (101), a top wheel (103) is provided at the top of the bottom wheel (102), and a rotary motor (104) is connected to one end of the back of the top wheel (103).

3. The spring rod cutting device according to claim 2, characterized in that: The bottom of the conveyor frame (101) is fixedly connected to the middle of the top surface of the processing table (1) near the right end. The bottom wheel (102) is connected to the conveyor frame (101) through a bearing. The top wheel (103) is connected to the middle of the adjusting plate (105) through a bearing. The rotary motor (104) is detachably installed on the back of the adjusting plate (105). The outer surface of the limiting strip (106) is slidably connected to the inside of the convex groove opened on the top of the conveyor frame (101). The bottom end of the adjusting rod (108) is limited and rotatably connected to the middle of the fixed plate (109). The fixed plate (109) is fixedly installed on the middle of the front side of the conveyor frame (101) near the bottom end.

4. The spring rod cutting device according to claim 1, characterized in that: The limiting device includes a limiting box (201), an electric push rod (202) is installed in the middle of the left end of the limiting box (201), a slider (203) is connected to the output end of the electric push rod (202), and a limiting plate (204) is installed on the top of the slider (203).

5. A spring rod cutting device according to claim 4, characterized in that: The bottom of the limiting box (201) is fixedly connected to the middle of the top surface of the processing table (1) near the left end. The electric push rod (202) is detachably installed in the middle of the left end of the limiting box (201). The outer surface of the slider (203) is slidably connected to the inner wall of the limiting groove in the middle of the limiting box (201).

6. The spring rod cutting device according to claim 1, characterized in that: The clamping device includes a hydraulic cylinder (301), a sleeve (302) is installed at the output end of the hydraulic cylinder (301), a clamping block (303) is installed in the middle of the side of the sleeve (302) away from the hydraulic cylinder (301), and a clamping head (304) is installed on the side of the clamping block (303) away from the sleeve (302).

7. A spring rod cutting device according to claim 6, characterized in that: The outer surface of the card block (303) and the middle part of the card sleeve (302) are connected by a convex card groove. The bottom hydraulic cylinder (301) is installed at the top and bottom of the processing table (1), and the top hydraulic cylinder (301) is installed at the top and bottom of the processing frame (2).

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