Pre-positioning punching equipment for stainless steel pipe

Abstract

The utility model relates to pre-positioning punching equipment for a stainless steel pipe, and relates to the technical field of stainless steel pipe production, the pre-positioning punching equipment for the stainless steel pipe comprises a feeding type drilling device, a clamping device and a conveying device which are arranged in sequence, and the conveying device comprises a conveying frame, a plurality of conveying rollers rotationally connected to the conveying frame and a conveying driving mechanism for driving the conveying rollers to rotate; balance spaces are reserved between the adjacent conveying rollers, inclined pushing mechanisms which stretch out and draw back from the balance spaces and are used for pushing steel billets to the center point are arranged on the bottom side of the conveying frame, the multiple inclined pushing mechanisms are located on the two sides of the conveying frame in the length direction, and the multiple inclined pushing mechanisms on the two sides are arranged in the balance spaces in a staggered mode. The steel billet conveying centering device has the good stability, the centering position can be continuously adjusted through the inclined pushing mechanism, and the steel billet conveying centering effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of production and processing equipment for stainless steel pipes, and in particular to a pre-positioning punching device for stainless steel pipes. Background Art

[0002] Before the center hole is expanded, the steel billet needs to be pre-positioned and punched. After the punching is completed, it is cold rolled or heat treated and then expanded to finally be made into a stainless steel pipe. Therefore, center pre-positioning and punching is an important step in the production and processing of stainless steel pipes, which plays an auxiliary role in the subsequent process.

[0003] At present, a universal conveying structure is used to convey the steel billets, which eventually enter the centering fixture and are then drilled by a drilling rig. However, there are large differences in the sizes of steel billets. Smaller steel billets will have a certain degree of left and right jumping on the wider conveying structure, resulting in an offset before entering the centering fixture, causing the steel billet to be unable to accurately enter the centering fixture along the axial direction. The steel billet is retained or deflected on the conveying structure, and the position of the steel billet needs to be manually straightened, affecting the drilling efficiency. Utility Model Content

[0004] In order to improve the punching efficiency of pre-positioning punching of stainless steel pipes during the production process, the purpose of the present application is to provide a pre-positioning punching device for stainless steel pipes.

[0005] The present application provides a pre-positioning punching device for stainless steel pipes, which adopts the following technical solution:

[0006] A pre-positioning punching device for stainless steel pipes, comprising a feed-type drilling device, a clamping device and a conveying device arranged in sequence, wherein the conveying device comprises a conveying frame, a plurality of conveying rollers rotatably connected to the conveying frame, and a conveying drive mechanism for driving the conveying rollers to rotate; a balancing space is reserved between adjacent conveying rollers, and an oblique pushing mechanism is provided on the bottom side of the conveying frame, which is retractable from each balancing space and is used to push the steel billet to the center point, and the plurality of oblique pushing mechanisms are located on both sides of the conveying frame in the length direction, and the plurality of oblique pushing mechanisms on both sides are staggered in the balancing space.

[0007] By adopting the above technical scheme, the drilling device is used to pre-position and drill holes on the end face of the steel billet, the clamping device is used to complete the clamping of the steel billet, and the conveying device is used to complete the conveying of the steel billet, wherein a plurality of conveying rollers have a transmission force that can drive the steel billet to move, and the oblique push mechanism is used to push the steel billet and continuously straighten the overall conveying direction of the steel billet so that the head and tail ends of the steel billet are relatively centered on the conveying roller, and the oblique push mechanism extends from the balance space and does not interfere with the normal transportation of the conveying roller, thereby ensuring that the steel billet accurately enters the clamping device along the axial direction, without the need for additional manual straightening of the steel billet, thereby improving the overall efficiency.

[0008] Optionally, the oblique thrust mechanism includes an oblique thrust bracket, an oblique thrust cylinder connected to the oblique thrust bracket, and an oblique thrust plate connected to the piston rod of the oblique thrust cylinder.

[0009] By adopting the above technical solution, the oblique thrust mechanism mainly realizes the movement of the oblique thrust plate by the oblique thrust cylinder. The piston rod of the oblique thrust cylinder can complete a pushing action by extending and retracting it once. The structure is simple to assemble and the power source is easy to realize.

[0010] Optionally, the inclined push plate is provided with a plurality of rolling grooves along its length direction, and a roller protruding from the rolling groove is rotatably connected in the rolling groove.

[0011] By adopting the above technical solution, using rollers to resist and push the steel billet can reduce the wear on the outer surface of the steel billet, the steel billet can roll smoothly along the outer wall of the inclined push plate, and the centering adjustment of the steel billet is smoother.

[0012] Optionally, two reinforcing plates extend from one side of the inclined thrust plate toward the inclined thrust cylinder, and the two reinforcing plates extend to one side of the inclined thrust plate and inwardly form mutually connected flaps.

[0013] By adopting the above technical solution, the reinforced triangular structure formed by the oblique push plate, the reinforcing plate and the flap has stronger bending resistance, and the oblique push plate has higher durability.

[0014] Optionally, the inclined push plate is provided with a slot for inserting the piston rod of the inclined push cylinder near the flap, and the panel of the inclined push plate is provided with a fixing bolt for penetrating into the slot and connecting with the piston rod.

[0015] By adopting the above technical solution, the piston rod of the oblique thrust cylinder is connected to the oblique thrust plate by a fixing bolt. Therefore, when the oblique thrust plate is worn and deformed, the oblique thrust plate can be removed separately for replacement, avoiding replacement of the entire part. Single-part replacement prolongs the overall service life.

[0016] Optionally, the roller jacket is provided with a rubber ring.

[0017] By adopting the above technical solution, the outer cover of the drum is a rubber ring, which can play a role of buffering and protecting the drum.

[0018] Optionally, a limiting mechanism extending from each balancing space for limiting the rolling position of the steel billet is further provided on the bottom side of the conveying frame, the limiting mechanism and the oblique pushing mechanism are staggered, and the limiting mechanism includes a limiting block higher than the conveying roller and a limiting frame supporting the limiting block.

[0019] By adopting the above technical solution, the limiting mechanism is located at the side of the conveying device, the limiting frame is relatively fixed, and the limiting block imposes a certain limit on the movable distance of the steel billet, so as to prevent the steel billet from completely leaving the conveying device when the oblique push mechanism is retracted.

[0020] Optionally, the limit frame is provided with a lead screw for driving the limit block to move, the limit frame is provided with a guide rod for guiding the limit block to slide, and the conveying frame is provided with an adjusting motor for driving the lead screw to rotate.

[0021] By adopting the above technical solution, the position of the limit block on the limit frame can be appropriately adjusted to avoid the limit block limiting a range that is too narrow, making it difficult to insert the billet. In this way, while making it easy to insert the billet, it also plays a limiting role in the rolling of the billet.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] 1. When the steel billet is transported on the conveying device, it has good stability and can continuously adjust the centering position through the oblique push mechanism to make the steel billet transport centered;

[0024] 2. The oblique push mechanism and the limit mechanism work together to improve the conveying stability of the steel billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 It is a structural schematic diagram of an oblique push mechanism embodied in an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the structure of the limiting mechanism embodied in the embodiment of the present application;

[0029] Figure 4 is a schematic cross-sectional structural diagram of a drum according to an embodiment of the present application;

[0030] In the figure, 1. drilling device; 2. clamping device; 3. conveying device; 31. conveying frame; 32. conveying roller; 33. conveying drive mechanism; 34. balancing space; 4. oblique push mechanism; 41. oblique push bracket; 42. oblique push cylinder; 421. piston rod; 43. oblique push plate; 431. rolling groove; 432. roller; 433. reinforcing plate; 434. flap; 435. slot; 436. fixing bolt; 437. rubber ring; 5. limiting mechanism; 51. limiting block; 52. limiting frame; 53. lead screw; 54. guide rod; 55. adjusting motor. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] Embodiment: A pre-positioning punching device for stainless steel pipe, referring to Figure 1 , including a feed-type drilling device 1, which is subsequently connected to a clamping device 2 and a conveying device 3.

[0033] The conveying device 3 includes a conveying frame 31, a plurality of conveying rollers 32 connected to the conveying frame 31, and a conveying driving mechanism 33 for driving the conveying rollers 32 to rotate. The conveying rollers 32 can drive the steel billet to be conveyed to the clamping device 2. The clamping device 2 is used to clamp the steel billet. In the drilling device 1, the drilling machine can complete the feeding drilling by itself and perform pre-positioning drilling on the steel billet. A balancing space 34 is left between two adjacent conveying rollers 32. A plurality of oblique pushing mechanisms 4 are arranged on both sides in a staggered manner along the length direction of the conveying frame 31. The oblique pushing mechanisms 4 are extended and retracted to complete the balanced pushing of the steel billet, align the head and tail of the steel billet, and the head and tail ends of the steel billet are relatively centered on the conveying rollers 32. The steel billet enters the clamping device 2 along the axial direction.

[0034] refer to Figure 1 and Figure 2 The oblique thrust mechanism 4 includes an oblique thrust bracket 41, an oblique thrust cylinder 42 connected to the oblique thrust bracket 41, and an oblique thrust plate 43 connected to the piston rod 421 of the oblique thrust cylinder 42, wherein the bottom side of the oblique thrust plate 43 is opened, and the fixing bolt 436 passes through the oblique thrust plate 43 and is fixedly connected to the piston rod 421 of the oblique thrust cylinder 42. The fixing bolt 436 is removed to replace the worn oblique thrust plate 43. The oblique thrust plate 43 is provided with a plurality of rolling grooves 431 along its length direction, and a roller 432 is rotatably connected in each rolling groove 431. The outer surface of the roller 432 is higher than the surface of the oblique thrust plate 43. Therefore, the use of the roller 432 to resist and push the steel billet can reduce the wear on the outer surface of the steel billet and make the adjustment of the steel billet smoother. The oblique thrust plate 43 is connected to two reinforcing plates 433, and the reinforcing plates 433 are triangular. The right-angled sides of the two reinforcing plates 433 are connected to a flap 434 for reinforcement. The inclined thrust plate 43 is provided with a slot 435 near the flap 434, and the piston rod 421 of the inclined thrust cylinder 42 is inserted into the slot 435 to increase the axial contact reinforcement surface, so that the connection between the piston rod 421 of the inclined thrust cylinder 42 and the fixing bolt 436 is more firmly connected.

[0035] refer to Figure 4 In order to provide the roller 432 with collision buffer, a rubber ring 437 is provided on the outer cover of the roller 432 .

[0036] refer to Figure 3A limiting mechanism 5 is also provided at the bottom side of the conveying frame 31 near the side edge. The limiting mechanism 5 also extends from the balancing space 34. The limiting mechanism 5 is aligned with the oblique push mechanism 4 and arranged symmetrically with the oblique push mechanism 4. The limiting mechanism 5 includes a limiting block 51, a lead screw 53 for driving the limiting block 51 to move, and a guide rod 54 for guiding the limiting block 51 to slide. An adjusting motor 55 is connected to the frame, and the adjusting motor 55 is used to drive the lead screw 53 to adjust the position of the limiting block 51. The limiting mechanism 5 assists in limiting the position of the steel billet, and when the oblique push mechanism 4 is retracted, the steel billet is prevented from rolling in the opposite direction and completely leaving the conveying frame 31.

[0037] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pre-positioning punching device for stainless steel pipes, comprising a feeding drilling device (1), a clamping device (2) and a conveying device (3) arranged in sequence, characterized in that: The conveying device (3) comprises a conveying frame (31), a plurality of conveying rollers (32) rotatably connected to the conveying frame (31), and a conveying driving mechanism (33) for driving the conveying rollers (32) to rotate; a balancing space (34) is reserved between adjacent conveying rollers (32); an oblique pushing mechanism (4) is provided on the bottom side of the conveying frame (31) and is telescopic from each balancing space (34) for pushing the steel billet to a center point; the plurality of oblique pushing mechanisms (4) are located on both sides of the conveying frame (31) in a length direction, and the plurality of oblique pushing mechanisms (4) on both sides are staggeredly arranged in the balancing space (34).

2. The pre-positioning punching device for stainless steel pipe according to claim 1, characterized in that: The oblique thrust mechanism (4) comprises an oblique thrust bracket (41), an oblique thrust cylinder (42) connected to the oblique thrust bracket (41), and an oblique thrust plate (43) connected to a piston rod (421) of the oblique thrust cylinder (42).

3. The pre-positioning punching device for stainless steel pipe according to claim 2, characterized in that: The inclined push plate (43) is provided with a plurality of rolling grooves (431) along its length direction, and a roller (432) protruding from the rolling groove (431) is rotatably connected in the rolling groove (431).

4. The pre-positioning punching device for stainless steel pipe according to claim 2, characterized in that: Two reinforcing plates (433) extend from one side of the inclined thrust plate (43) facing the inclined thrust cylinder (42), and the two reinforcing plates (433) extend to one side of the inclined thrust plate (43) and form mutually connected flaps (434) inwardly.

5. The pre-positioning punching device for stainless steel pipe according to claim 4, characterized in that: The inclined push plate (43) is provided with a slot (435) for inserting the piston rod (421) of the inclined push cylinder (42) near the flap (434), and a fixing bolt (436) for penetrating into the slot (435) and connecting with the piston rod (421) is provided on the panel of the inclined push plate (43).

6. The pre-positioning punching device for stainless steel pipe according to claim 3, characterized in that: The outer shell of the roller (432) is provided with a rubber ring (437).

7. The pre-positioning punching device for stainless steel pipe according to claim 1, characterized in that: The bottom side of the conveying frame (31) is also provided with a limiting mechanism (5) extending from each balancing space (34) for limiting the rolling of the steel billet. The limiting mechanism (5) and the oblique pushing mechanism (4) are arranged in an alternating manner. The limiting mechanism (5) comprises a limiting block (51) higher than the conveying roller (32) and a limiting frame (52) supporting the limiting block (51).

8. The pre-positioning punching device for stainless steel pipe according to claim 7, characterized in that: The limiting frame (52) is provided with a lead screw (53) for driving the limiting block (51) to move, the limiting frame (52) is provided with a guide rod (54) for guiding the limiting block (51) to slide, and the conveying frame (31) is provided with an adjusting motor (55) for driving the lead screw (53) to rotate.

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