High-precision pusher

Abstract

The utility model provides a kind of high-precision pusher, including base, the clamping mechanism for clamping and advancing steel pipe is installed in base top side, clamping mechanism includes the mounting disc fixed in base top, the lateral wall of mounting disc is equiangularly provided with three groups of guide blocks, the through-hole for steel pipe horizontal crossing is set in mounting disc middle part, the rotating installation of driving wheel is slidably installed in one side of three groups of guide blocks, the one end of driving wheel is rotatably installed with auxiliary advancing wheel, the lateral wall of driving wheel is rotatably installed with rotating wheel, and rotating wheel eccentric rotation is installed with eccentric pin. The utility model is in cooperation with first connecting rod, second connecting rod, third connecting rod and eccentric pin (connecting rotating wheel) by air cylinder, drive wheel on three groups of guide blocks synchronous sliding adjustment, three-point type uniform clamping effect to different diameter pipeline is realized, whether the diameter of pipeline is guaranteed to be balanced, avoid pipeline deviation or deformation when clamping, guarantee the precision when pushing different diameter pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of pusher technology, and more specifically, relates to a high-precision pusher. Background Technology

[0002] Existing Chinese patent application number: CN202420981989.8, Seamless Steel Pipe Pushing Machine. This utility model relates to the technical field of seamless steel pipe production equipment and proposes a seamless steel pipe pushing machine, including an equipment frame, a support base, and a bending center rod. The support base is fixed to the surface of the equipment frame, the bending center rod is disposed inside the support base, a limiting pushing assembly is disposed on the equipment frame, an electric heating coil is mounted on the equipment frame, a supporting conveying assembly is disposed on the support base and the equipment frame, side plates are fixed to both ends of the surface of the equipment frame, and a limiting hydraulic cylinder is disposed on the side surface of the side plate. The limiting hydraulic cylinder is fixed to the side surface of the side plate, and the output end of the limiting hydraulic cylinder is connected to a movable frame. Through the above technical solution, the problem in the related technology that when putting steel pipes onto the guide rod, the push plate pushed by the hydraulic rod cannot be limited, which poses a danger to the operator.

[0003] In the aforementioned utility model, the support wheel is driven by the first telescopic cylinder, and the limiting sleeve is a fixed structure. No pipe diameter adaptation adjustment mechanism is provided. The document only mentions that the support wheel is tightly fitted onto the bending center rod and the external limiting sleeve of the steel pipe to clamp the steel pipe, but it does not solve the adaptation problem when the steel pipe diameter changes. When the steel pipe diameter is smaller than the inner diameter of the limiting sleeve or larger than the maximum support range of the support wheel, the entire set of components needs to be replaced, which is cumbersome and increases costs. Moreover, the "concave and inclined structure of the support roller" can only adapt to the center positioning of a single pipe diameter, and the steel pipe is prone to displacement when the pipe diameter changes.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a high-precision pushing machine, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-precision pushing machine, which is achieved by the following specific technical means: A high-precision pushing machine includes a base. A clamping mechanism for clamping and pushing steel pipes is installed on one side of the top of the base. The clamping mechanism includes a mounting plate fixed to the top of the base. Three sets of guide blocks are angled at equal angles on the side wall of the mounting plate. A through hole for the steel pipe to pass through horizontally is opened in the middle of the mounting plate. A drive wheel is slidably mounted and rotatably mounted on one side of each of the three sets of guide blocks. An auxiliary pushing wheel is rotatably mounted on one end of the drive wheel. A rotating wheel is rotatably mounted on the side wall of the drive wheel. An eccentric pin is rotatably mounted on the rotating wheel. A second connecting rod is rotatably mounted on each of the three sets of eccentric pins. A first connecting rod is also rotatably mounted on the outer wall of two sets of eccentric pins. The other ends of two adjacent sets of first and second connecting rods are hinged to a third connecting rod. A cylinder is rotatably mounted on the other end of another set of second connecting rods. The cylinder is rotatably mounted on the side wall of the mounting plate.

[0006] Preferably, two sets of support brackets are installed on the top of the base, and the top of the two sets of support brackets are in contact with the bottom of the steel pipe to receive the steel pipe delivered from the clamping mechanism. A support roller frame is installed between the two sets of support brackets on the base, and a support roller is rotatably installed on the top of the support roller frame. An electric heating coil is provided on the side wall of one set of support brackets. The electric heating coil is fixed to the top of the base by a bracket to soften the steel pipe to a pushable state by heating.

[0007] Preferably, a cooling pool is fixed on the top of the base and on the side of the support roller frame away from the support bracket. The top of the cooling pool is open and corresponds to the pushing path of the steel pipe. A water inlet pipe is provided on one side of the cooling pool and a water outlet pipe is provided on the other side. A water pump fixed on one side of the base is installed on the water inlet pipe, and a temperature sensor electrically connected to the water pump is provided inside the cooling pool.

[0008] Preferably, the base has four sets of omnidirectional casters at the four corners of the bottom, the omnidirectional casters are rotatably connected to the bottom of the base, and the omnidirectional casters are equipped with rotatable brake pads.

[0009] Preferably, the guide block has a strip track for the drive wheel axle to slide on, and an elastic dust cover is fastened to the opening of the strip track. The two ends of the elastic dust cover are fixed to the drive wheel axle and the guide block respectively. The inner wall of the strip track has a grease groove along the length direction, and the grease groove is filled with solid grease.

[0010] Preferably, the outer peripheral wall of the drive wheel is provided with anti-slip textures evenly distributed along the circumference.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses a cylinder in conjunction with a first connecting rod, a second connecting rod, a third connecting rod, and an eccentric pin (connecting a rotating wheel) to drive the drive wheels on three sets of guide blocks to slide and adjust synchronously, thereby achieving a three-point uniform clamping effect for pipes of different diameters. This ensures that the force is balanced regardless of the pipe diameter, preventing pipe offset or deformation during clamping and guaranteeing the accuracy of pushing pipes of different diameters.

[0012] 2. This utility model achieves dustproof and low-friction sliding effect when the drive wheel axle is adjusted to adapt to pipes of different diameters by using an elastic dustproof cover on the guide block strip track in conjunction with a grease groove (filled with solid grease). This avoids dust and impurities affecting the sliding accuracy of the wheel axle, while reducing component wear, extending the service life of the clamping mechanism, and ensuring clamping stability when adapting to pipes of different diameters for a long time. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0014] Figure 2 This is a top view of the present invention.

[0015] Figure 3 This is a side sectional view of the present invention.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Base; 2. Steel pipe; 3. Clamping mechanism; 301. Through hole; 302. Guide block; 303. Drive wheel; 304. Rotating wheel; 305. Eccentric pin; 306. First connecting rod; 307. Second connecting rod; 308. Third connecting rod; 309. Auxiliary propulsion wheel; 310. Cylinder; 311. Mounting plate; 4. Support bracket; 5. Support roller frame; 6. Electric heating coil; 7. Cooling pool; 8. Universal caster. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example: As attached Figure 1 To be continued Figure 3 As shown: This utility model provides a high-precision pushing machine, including a base 1. A clamping mechanism 3 for clamping and pushing a steel pipe 2 is installed on one side of the top of the base 1. The clamping mechanism 3 includes a mounting plate 311 fixed to the top of the base 1. Three sets of guide blocks 302 are angled at equal angles on the side wall of the mounting plate 311. A through hole 301 for the steel pipe 2 to pass through horizontally is opened in the middle of the mounting plate 311. A drive wheel 303 is slidably mounted and rotatably mounted on one side of each of the three sets of guide blocks 302. An auxiliary pushing wheel 309 is rotatably mounted on one end of the drive wheel 303. A rotating wheel 304 is rotatably mounted on the side wall of the drive wheel 303. An eccentric pin 305 is rotatably mounted on the rotating wheel 304. A second connecting rod 307 is rotatably mounted on each of the three sets of eccentric pins 305. A first connecting rod 306 is rotatably mounted on the outer wall of two sets of eccentric pins 305. A third connecting rod 308 is hinged to the other end of the two adjacent sets of first connecting rods 306 and second connecting rods 307. A cylinder 310 is rotatably mounted on the other end of the other set of second connecting rods 307. The cylinder 310 is rotatably mounted on the side wall of the mounting plate 311.

[0019] The base 1 has two sets of support brackets 4 installed on its top. The tops of the two sets of support brackets 4 are in contact with the bottom of the steel pipe 2 to receive the steel pipe 2 delivered from the clamping mechanism 3. A support roller frame 5 is installed between the two sets of support brackets 4 on the base 1. A support roller is rotatably mounted on the top of the support roller frame 5. An electric heating coil 6 is provided on the side wall of one set of support brackets 4. The electric heating coil 6 is fixed to the top of the base 1 by a bracket to heat the steel pipe 2 to a soft state that allows it to be pushed. The two sets of support brackets 4 are in contact with the bottom of the steel pipe 2, and the support roller frame 5 is in contact with the steel pipe 2. The combination of the support bracket 4 and the electric heating coil 6 on the side wall of the support bracket 4, along with the steel pipe 2, achieves a triple effect: First, the support bracket 4 supports the steel pipe 2 delivered from the clamping mechanism 3, preventing the steel pipe 2 from sagging or shifting due to its own weight; second, the support rollers of the support roller frame 5 reduce the frictional resistance when the steel pipe 2 is pushed forward, improving the smoothness of the pushing process; third, the electric heating coil 6 precisely heats the steel pipe 2, making it reach a soft state that can be pushed. The overall benefit is to ensure the stability of the pushing path of the steel pipe 2, avoid deformation caused by insufficient softening, and ensure the quality of the finished product and the pushing efficiency.

[0020] A cooling pool 7 is fixed on the top of the base 1, on the side of the support roller frame 5 away from the support bracket 4. The top of the cooling pool 7 is open and corresponds to the pushing path of the steel pipe 2. The cooling pool 7 has an inlet pipe on one side and an outlet pipe on the other side. A water pump fixed on one side of the base 1 is installed on the inlet pipe. A temperature sensor electrically connected to the water pump is installed inside the cooling pool 7. By cooperating with the inlet pipe, outlet pipe, and water pump, and combining the temperature sensor inside the cooling pool 7 with the water pump, a highly efficient temperature control and cooling effect is achieved for the heated and formed steel pipe 2. Specifically, the temperature sensor monitors the water temperature of the cooling pool 7 in real time, and the water temperature is stabilized by adjusting the inlet and outlet water flow through the water pump. This prevents the steel pipe 2 from developing internal stress or cracking due to uneven cooling, ensuring the mechanical properties of the finished product and extending the service life of the finished steel pipe 2.

[0021] The base 1 has four sets of universal casters 8 at its four corners. The universal casters 8 are rotatably connected to the bottom of the base 1. Each universal caster 8 has a rotatable brake pad. By using the four sets of universal casters 8 at the bottom of the base 1 in conjunction with the rotatable brake pads on the universal casters 8, the pusher achieves the dual effect of "flexible movement + stable operation". The universal casters 8 make it easy to adjust the position of the equipment according to the layout of the production site, thereby improving the site utilization rate. The brake pads can lock the universal casters 8 during the pusher operation to prevent the equipment from shifting and affecting the pusher accuracy of the steel pipe 2, thus ensuring production stability.

[0022] The guide block 302 has a strip track for the drive wheel 303 axle to slide on. An elastic dust cover is fastened to the opening of the strip track. The two ends of the elastic dust cover are fixed to the drive wheel 303 axle and the guide block 302, respectively. The inner wall of the strip track has a grease groove along its length, and the grease groove is filled with solid grease. By using the strip track on the guide block 302 in conjunction with the elastic dust cover and the grease groove, the dual effect of "dustproof + low friction" is achieved when the drive wheel 303 axle slides. The elastic dust cover prevents external dust and metal debris from entering the strip track, avoiding affecting the sliding accuracy of the axle. The solid grease reduces the friction loss between the axle and the inner wall of the strip track, extending the service life of components such as the guide block 302 and the drive wheel 303. At the same time, it ensures the sliding stability of the drive wheel 303 when adjusting the spacing, indirectly improving the clamping accuracy of the steel pipe 2.

[0023] The drive wheel 303 has anti-slip textures evenly distributed along the circumference on its outer peripheral wall. By using the anti-slip textures on the outer peripheral wall of the drive wheel 303 in conjunction with the outer wall of the steel pipe 2, the friction between the drive wheel 303 and the steel pipe 2 is enhanced. This effectively avoids the problem of uneven pushing speed caused by the slippage between the drive wheel 303 and the outer wall of the steel pipe 2 during the pushing process, ensuring that the steel pipe 2 moves forward at a constant speed along the preset path, further ensuring the pushing accuracy of the steel pipe 2 and reducing the scrap rate.

[0024] The working principle of this embodiment is as follows: First, according to the diameter of the steel pipe 2 to be pushed, the cylinder 310 starts and drives the second connecting rod 307 that is hinged to it. The second connecting rod 307 drives the eccentric pin 305 on the rotating wheel 304 to rotate. Then, through the linkage transmission of the first connecting rod 306 and the third connecting rod 308, the drive wheels 303 carried by the three sets of guide blocks 302 that are equidistantly distributed on the mounting plate 311 fixed on the top of the base 1 slide synchronously along the strip track 313 on the guide block 302, adjusting the distance between the three sets of drive wheels 303. During this process, the solid grease in the strip track 313 reduces the sliding friction of the drive wheel 303 axle, and the elastic dust cover 314 at the opening of the strip track 313 blocks external impurities from entering the track, ensuring that the distance adjustment is accurate and smooth, until the drive wheel 303 matches the diameter of the steel pipe 2 and forms a three-point stable clamping of the steel pipe 2 in the through hole 301 in the middle of the mounting plate 311. After clamping, the drive wheel 303 rotates, and the anti-slip texture on its outer peripheral wall increases the friction with the outer wall of the steel pipe 2. Together with the auxiliary push wheel 309 at one end of the drive wheel 303, it pushes the steel pipe 2 forward along the preset pushing path. During this time, the two sets of support brackets 4 on the top of the base 1 support the steel pipe 2 sent out from the clamping mechanism 3, preventing the steel pipe 2 from drooping and shifting due to its own weight. The support rollers on the top of the support roller frame 5 between the two sets of support brackets 4 on the base 1 assist in guiding and reducing the frictional resistance when the steel pipe 2 is pushed. When the steel pipe 2 passes the electric heating coil 6 on the side wall of one of the support brackets 4, the electric heating coil 6 heats and softens the steel pipe 2, making it reach a pushable physical state. After softening, the steel pipe 2 continues to be pushed to the top of the base 1, to the cooling pool 7 on the side of the support roller frame 5 away from the support bracket 4. The cooling pool 7 is connected to the water pump on one side of the base 1 and the water outlet on the other side through the water inlet pipe on one side to achieve water circulation. The temperature sensor inside the cooling pool 7 controls the water pump in real time to adjust the water temperature, so as to uniformly control the temperature and cool the steel pipe 2, and finally complete the high-precision pushing and forming of steel pipes 2 of different diameters. At the same time, the four sets of universal casters 8 at the four corners of the bottom of the base 1 can adjust the position of the equipment according to the needs of the production site. The brake pads on the universal casters 8 fix the equipment during operation and ensure the stability of the pushing process.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-precision push-forming machine, comprising a base (1), characterized in that: A clamping mechanism (3) for clamping and pushing a steel pipe (2) is installed on one side of the top of the base (1). The clamping mechanism (3) includes a mounting plate (311) fixed to the top of the base (1). Three sets of guide blocks (302) are angled at the side wall of the mounting plate (311). A through hole (301) for the steel pipe (2) to pass through horizontally is opened in the middle of the mounting plate (311). A drive wheel (303) is slidably mounted and rotatably mounted on one side of each of the three sets of guide blocks (302). An auxiliary push wheel (309) is rotatably mounted on one end of the drive wheel (303). A rotating wheel (304) is rotatably mounted on the side wall of the mounting plate (311). An eccentric pin (305) is eccentrically mounted on the rotating wheel (304). A second connecting rod (307) is rotatably mounted on each of the three sets of eccentric pins (305). A first connecting rod (306) is rotatably mounted on the outer wall of two sets of eccentric pins (305). A third connecting rod (308) is hinged to the other end of the two adjacent sets of first connecting rods (306) and second connecting rods (307). A cylinder (310) is rotatably mounted on the other end of the other set of second connecting rods (307). The cylinder (310) is rotatably mounted on the side wall of the mounting plate (311).

2. The high-precision push-forming machine according to claim 1, characterized in that: The base (1) is equipped with two sets of support brackets (4) on its top. The top of the two sets of support brackets (4) is in contact with the bottom of the steel pipe (2) to receive the steel pipe (2) sent out from the clamping mechanism (3). The base (1) is equipped with a support roller frame (5) between the two sets of support brackets (4). The support roller frame (5) is rotatably mounted on its top. One set of support brackets (4) is provided with an electric heating coil (6) on its side wall. The electric heating coil (6) is fixed to the top of the base (1) by a bracket to make the steel pipe (2) reach a pushable softened state by heating.

3. The high-precision push-forming machine according to claim 1, characterized in that: A cooling pool (7) is fixed on the top of the base (1) and on the side of the support roller frame (5) away from the support bracket (4). The top of the cooling pool (7) is open and corresponds to the pushing path of the steel pipe (2). The cooling pool (7) has an inlet pipe on one side and an outlet pipe on the other side. A water pump fixed on one side of the base (1) is installed on the inlet pipe. A temperature sensor electrically connected to the water pump is provided inside the cooling pool (7).

4. The high-precision push-forming machine according to claim 1, characterized in that: The base (1) has four sets of universal casters (8) at its four corners. The universal casters (8) are rotatably connected to the bottom of the base (1). The universal casters (8) are equipped with rotatable brake pads.

5. A high-precision push-forming machine according to claim 1, characterized in that: The guide block (302) has a strip track for the drive wheel (303) axle to slide on. An elastic dust cover is fastened to the opening of the strip track. The two ends of the elastic dust cover are fixed to the drive wheel (303) axle and the guide block (302) respectively. A grease groove is provided on the inner wall of the strip track along the length direction. The grease groove is filled with solid grease.

6. A high-precision push-forming machine according to claim 1, characterized in that: The outer peripheral wall of the drive wheel (303) is provided with anti-slip textures evenly distributed along the circumference.

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