Stainless steel bar straight edge hole machining device and machining method thereof

Abstract

The invention discloses a stainless steel bar straight edge hole machining device and a machining method thereof, and particularly relates to the technical field of bar machining. The stainless steel bar straight edge hole machining device comprises a mounting longitudinal frame, a driving outer frame is fixedly mounted at the top of the mounting longitudinal frame, a lifting sliding frame is slidably clamped in the middle of the driving outer frame, and a machining mechanism is arranged at the top end of the lifting sliding frame; the machining mechanism is arranged and used in cooperation with the lifting sliding frame, during machining, an auxiliary round hole can be drilled in the eccentric position of the stainless steel bar firstly, then a straight hole is stably milled in one side of the auxiliary round hole through the machining mechanism, and then the machining mechanism is used for machining the straight hole. The external milling mechanism is used for milling other parts so as to form a straight-edge hole site, so that the drilling inclined bending caused by deviation when the machining mechanism goes deep into the drilling hole for machining can be prevented, the drilling quality is improved, and the situation that a milling cutter head goes deep due to blockage caused by the fact that sweeps are clamped in the stainless steel bar can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of bar processing, in particular to a processing device and a processing method for a straight-edge hole of a stainless steel bar. Background Art

[0002] Stainless steel bar is a material commonly used in manufacturing and construction. It has the advantages of corrosion resistance, high strength and good processing performance. It is widely used in machinery, construction, medical equipment, food processing and other fields. Stainless steel bar processing mainly includes cutting, drilling, milling and turning as well as welding.

[0003] Among them, when drilling a stainless steel bar axially, it is sometimes necessary to drill a straight-edge hole. Most of the time, milling is used to process the straight-edge holes on the positioned stainless steel bars. During processing, the high-speed rotating milling cutter penetrates into the stainless steel bar for processing, but for some longer stainless steel bars, the milling cutter needs to penetrate a longer depth. At this time, waste chips are easily stuck in the stainless steel bar to cause blockage, affecting the penetration of the milling cutter, and easily causing the milling cutter to tilt and break, thereby causing the drilled hole to be bent. For this reason, we propose a processing device and a processing method for straight-edge holes in stainless steel bars to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a device and method for processing straight-edge holes in stainless steel bars, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: The invention provides a processing device for straight-edge holes in stainless steel bars, comprising two mounting longitudinal frames, the tops of the two mounting longitudinal frames are fixedly mounted with driving outer frames, the two mounting longitudinal frames are symmetrically arranged on both sides of the driving outer frame, a lifting slide is provided on a sliding card in the middle of the driving outer frame, a processing mechanism is provided on the top of the lifting slide, the processing mechanism comprises a mechanism outer frame, a bearing is fixedly provided on the top of the mechanism outer frame, a rotating shaft is fixedly provided on one end of the rotating shaft, the milling cutter head is in a frustum shape, an auxiliary shaft is rotatably installed on the bottom of the mechanism outer frame, a first sprocket is fixedly installed on one end of the rotating shaft away from the milling cutter head, a second sprocket is fixedly installed on the outer side of the auxiliary shaft, a transmission chain is meshed and connected with the outer sides of the first sprocket and the second sprocket, a first motor is fixedly mounted on the mechanism outer frame, a driving end of the first motor and one end of the auxiliary shaft are fixedly mounted, two transverse slides are provided on the sliding card in the middle of a side of the mechanism outer frame away from the milling cutter head, and positioning wheels are rotatably installed on one end of the two transverse slides away from the mechanism outer frame.

[0006] Optionally, a connecting longitudinal frame is vertically installed at one end of the two transverse slides away from the positioning wheel, a telescopic cylinder is fixedly installed in the outer frame of the mechanism, and a driving end of the telescopic cylinder is fixedly installed in the middle of the connecting longitudinal frame.

[0007] Optionally, a driving gear is provided on the top movable card of one of the mounting longitudinal frames, a driving shaft is fixedly installed on the middle part of the driving gear, the driving shaft is rotatably installed on the top of the mounting longitudinal frame, and a driven rack is provided on the side end of the lifting slide for use with the driving gear, and the driving gear and the driven rack are meshingly connected.

[0008] Preferably, a driven worm gear is fixedly mounted on one end of the driving shaft, a driving worm is meshingly connected to the outer side of the driven worm gear, and the driving worm is rotatably mounted on the outer side of the mounting longitudinal frame.

[0009] Preferably, a second motor is fixedly mounted on a side of the outer wall of the mounting longitudinal frame close to the driving worm, and a driving end of the second motor and one end of the driving worm are fixedly mounted.

[0010] Optionally, a connecting bracket is fixedly mounted on the bottom end of the mechanism outer frame, a connecting slot corresponding to the connecting bracket is formed on the top end of the lifting slide, and the connecting bracket is fixedly connected to the connecting slot by bolts.

[0011] Preferably, there are a plurality of lifting slides, a connecting slot is provided at the top of each lifting slide, and a connecting frame is provided at the bottom of each lifting slide for clamping two adjacent lifting slides.

[0012] The present invention also provides a method for processing a straight-edge hole in a stainless steel bar, comprising the following processing steps: First, the stainless steel bar is positioned vertically by an external fixture; Then, an external drilling mechanism is used to vertically drill an auxiliary circular hole at an eccentric position of the stainless steel bar; Then, according to the drilling depth of the stainless steel bar, a lifting slide with a suitable length is selected for the processing device of the straight-edge hole of the stainless steel bar; Next, the first motor of the processing device for opening the straight-edge hole of the stainless steel bar is controlled to drive the auxiliary shaft to rotate, and the first sprocket and the second sprocket are meshed and connected with the transmission chain, thereby driving the rotating shaft and the milling cutter head to rotate at high speed; At the same time, the second motor of the processing device for opening the straight-edge hole of the stainless steel bar is controlled to drive the worm to drive the driven worm wheel to rotate, and then control the driving shaft and the driving gear to rotate, cooperate with the driving gear and the driven rack to mesh and connect, drive the lifting slide to slide on the driving outer frame, thereby controlling the processing mechanism to slide upward, so that the milling cutter head rotates and moves upward at high speed, and a straight hole is milled on one side of the auxiliary circular hole in the stainless steel bar. At the same time, the telescopic cylinder is controlled to drive the connecting longitudinal frame to control the horizontal movement of the two horizontal slides, thereby driving the positioning wheel to move horizontally, so that the outer wall of the positioning wheel contacts the inner wall of the auxiliary circular hole, and the inner support positioning of the processing mechanism 4 in the stainless steel bar is realized in turn; Finally, when the straight hole is milled out, an external milling mechanism is used to mill out other parts between the auxiliary circular hole and the straight hole that has been milled out to form a straight-edge hole position.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The stainless steel bar straight-edge hole processing device of the present invention can prevent the processing mechanism from deviating during deep drilling, avoid the drilled hole from bending and tilting, thereby improving the quality of the drilled hole, and can prevent waste chips from getting stuck in the stainless steel bar to cause blockage and affect the depth of the milling cutter head.

[0014] The method for processing straight-edge holes in stainless steel bars of the present invention utilizes the above-mentioned processing device for straight-edge holes in stainless steel bars. By setting a processing mechanism and cooperating with a lifting slide, an auxiliary circular hole can be firstly drilled at the eccentric position of the stainless steel bar, and then a straight hole can be stably milled out on one side of the auxiliary circular hole using the processing mechanism, and then an external milling mechanism is used to mill out other parts to form straight-edge hole positions, thereby cleverly and conveniently realizing the processing of straight-edge holes in stainless steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The figure is a schematic structural diagram of the device for processing straight-edge holes in stainless steel bars of the present invention during processing.

[0017] Figure 2 It is a schematic diagram of the structural connection of the stainless steel bar straight edge hole processing device after being disassembled.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4The present invention is a schematic structural diagram of a processing mechanism of a device for processing straight-edge holes in stainless steel bars at a certain viewing angle.

[0020] Figure 5 It is a structural schematic diagram of the processing mechanism of the stainless steel bar straight edge hole processing device of the present invention from another perspective.

[0021] Figure 6 The figure is a schematic diagram of the hole opening when the stainless steel bar straight-edge hole processing device of the present invention processes the stainless steel bar.

[0022] In the figure: 1. Install the longitudinal frame; 11. Drive gear; 12. Driven rack; 101. Stainless steel bar; 111. Drive shaft; 112. Driven worm gear; 113. Drive worm; 114. Second motor; 2. Drive outer frame; 3. Lifting slide; 301. Connecting slot; 4. Processing mechanism; 41. Mechanism outer frame; 411. Bearing; 42. Rotating axis; 43. Milling head; 44. Auxiliary shaft; 45. First sprocket; 451. Second sprocket; 452. Transmission chain; 453. First motor; 46. Horizontal slide; 461. Positioning wheel; 462. Connect the longitudinal frame; 463. Telescopic cylinder; 5. Connect the card frame; 7. Auxiliary round hole; 701. Straight edge hole. DETAILED DESCRIPTION

[0023] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0024] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention provides a processing device 100 for straight-edge holes in stainless steel bars, comprising two mounting longitudinal frames 1, a driving outer frame 2 being fixedly mounted on the top of the two mounting longitudinal frames 1, the two mounting longitudinal frames 1 being symmetrically arranged on both sides of the driving outer frame 2, a lifting slide 3 being provided on the middle sliding card of the driving outer frame 2, and a processing mechanism 4 being provided on the top of the lifting slide 3.

[0026] The processing mechanism 4 includes a mechanism outer frame 41, a bearing 411 is fixedly provided on the top of the mechanism outer frame 41, a rotating shaft 42 is fixedly provided on the middle of the bearing 411, a milling cutter head 43 is fixedly installed on one end of the rotating shaft 42, and the milling cutter head 43 is in a frustum shape, an auxiliary shaft 44 is rotatably installed on the bottom of the mechanism outer frame 41, a first sprocket 45 is fixedly installed on the end of the rotating shaft 42 away from the milling cutter head 43, a second sprocket 451 is fixedly installed on the outer side of the auxiliary shaft 44, and a transmission chain 452 is meshed and connected to the outer sides of the first sprocket 45 and the second sprocket 451.

[0027] A first motor 453 is fixedly installed in the mechanism outer frame 41, and the driving end of the first motor 453 and one end of the auxiliary shaft 44 are fixedly installed. By controlling the first motor 453 to start, the auxiliary shaft 44 is driven to rotate, and the first sprocket 45 and the second sprocket 451 are meshed and connected with the transmission chain 452, so as to drive the rotating shaft 42 and the milling cutter head 43 to rotate at high speed. Two horizontal slides 46 are slidably mounted in the middle of one side of the mechanism outer frame 41 away from the milling cutter head 43, and the two horizontal slides 46 are rotatably mounted with positioning wheels 461 at one end away from the mechanism outer frame 41. By setting two positioning wheels 461, it is convenient to perform internal support positioning on the processing mechanism 4 later, so as to improve the stability of the processing mechanism 4 in deep processing of stainless steel bars.

[0028] Optionally, a connecting longitudinal frame 462 is vertically installed at one end of the two horizontal slides 46 away from the positioning wheel 461, and a telescopic cylinder 463 is fixedly installed in the mechanism outer frame 41, and the driving end of the telescopic cylinder 463 is fixedly installed in the middle of the connecting longitudinal frame 462. The two horizontal slides 46 are controlled to move horizontally by opening the telescopic cylinder 463 to drive the connecting longitudinal frame 462, thereby driving the positioning wheel 461 to move horizontally. This is convenient for adapting to different processing sizes.

[0029] Optionally, a top movable card of one of the mounting longitudinal frames 1 is provided with a driving gear 11, a driving shaft 111 is fixedly installed in the middle of the driving gear 11, the driving shaft 111 is rotatably installed on the top of the mounting longitudinal frame 1, and a driven rack 12 used in conjunction with the driving gear 11 is provided at the side end of the lifting slide 3, and the driving gear 11 and the driven rack 12 are meshingly connected.

[0030] Preferably, a driven worm gear 112 is fixedly mounted on one end of the driving shaft 111 , and a driving worm 113 is meshingly connected to the outer side of the driven worm gear 112 . The driving worm 113 is rotatably mounted on the outer side of the mounting vertical frame 1 .

[0031] Preferably, a second motor 114 is fixedly mounted on one side of the outer wall of the mounting longitudinal frame 1 near the driving worm 113, and the driving end of the second motor 114 is fixedly mounted on one end of the driving worm 113. The second motor 114 is controlled to start to control the driving worm 113 to drive the driven worm gear 112 to rotate, thereby controlling the driving shaft 111 and the driving gear 11 to rotate, and the driving gear 11 and the driven rack 12 are meshed and connected to drive the lifting slide 3 to lift and slide in the driving outer frame 2, thereby controlling the processing mechanism 4 to lift and slide.

[0032] Optionally, a connecting bracket 5 is fixedly mounted on the bottom end of the mechanism outer frame 41, and a connecting slot 301 corresponding to the connecting bracket 5 is opened on the top end of the lifting slide 3, and the connecting bracket 5 is fixedly connected to the connecting slot 301 by bolts. This facilitates the disassembly of the lifting slide 3 and the processing mechanism 4.

[0033] Preferably, there are multiple lifting slides 3, each of which has a connection slot 301 at the top, and a connection bracket 5 at the bottom of each lifting slide 3, which is used to connect two adjacent lifting slides 3. In this way, different numbers of lifting slides 3 can be installed according to the drilling depth of the stainless steel bar, so as to facilitate the adjustment of the in-depth processing distance of the processing mechanism 4.

[0034] The present invention also provides a method for processing a straight-edge hole of a stainless steel bar, the steps of which are as follows: First, if Figure 1 As shown, the stainless steel bar 101 is vertically positioned by an external fixing device.

[0035] Then, if Figure 6 As shown, an external drilling mechanism is used to vertically drill an auxiliary circular hole 7 at an eccentric position of the stainless steel bar 101 .

[0036] Subsequently, a lifting carriage 3 of suitable length is selected for the stainless steel bar straight-edge hole processing device 100 according to the drilling depth of the stainless steel bar 101. For example, a certain number of lifting carriages 3 are spliced ​​as needed in the above-mentioned stainless steel bar straight-edge hole processing device 101 to facilitate adjusting the depth of the processing mechanism 4.

[0037] Next, the first motor 453 of the processing device 100 for opening the straight-edge hole of the stainless steel bar is controlled to drive the auxiliary shaft 44 to rotate, and the first sprocket 45 and the second sprocket 451 are engaged with the transmission chain 452, thereby driving the rotating shaft 42 and the milling head 43 to rotate at high speed.

[0038] At the same time, the second motor 114 is controlled to start to control the driving worm 113 to drive the driven worm wheel 112 to rotate, thereby controlling the driving shaft 111 and the driving gear 11 to rotate, and the driving gear 11 and the driven rack 12 are meshed and connected to drive the lifting slide 3 to slide upward in the driving outer frame 2, thereby controlling the processing mechanism 4 to slide upward, so that the milling cutter head 43 rotates at high speed and moves upward, and a straight hole is milled on one side of the auxiliary circular hole 7 in the stainless steel bar. At the same time, the telescopic cylinder 463 is controlled to start to drive the connecting longitudinal frame 462 to control the two horizontal slides 46 The machining mechanism 4 moves horizontally, thereby driving the positioning wheel 461 to move horizontally, so that the outer wall of the positioning wheel 461 contacts the inner wall of the auxiliary circular hole 7, and the internal support positioning of the processing mechanism 4 in the stainless steel bar 101 is realized in turn. This can improve the stability of the processing mechanism 4 in deep drilling of the stainless steel bar, and prevent the processing mechanism 4 from deviating during deep drilling and causing the drilled hole to be bent, thereby improving the quality of the drilled hole, and the waste chips generated by milling and drilling are discharged through the auxiliary circular hole 7, thereby preventing the waste chips from being stuck in the stainless steel bar and causing blockage to affect the penetration of the milling head 43.

[0039] Finally, when the straight hole is milled, an external milling mechanism is used to mill other parts between the auxiliary circular hole 7 and the straight hole that has been milled to form a straight edge hole position 701.

[0040] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A processing device for straight-edge holes in stainless steel bars, comprising two mounting longitudinal frames, characterized in that: A driving outer frame is fixedly installed on the top of the two mounting longitudinal frames, the two mounting longitudinal frames are symmetrically arranged on both sides of the driving outer frame, a lifting slide is provided on the middle sliding card of the driving outer frame, and a processing mechanism is provided on the top of the lifting slide; The processing mechanism includes a mechanism outer frame, a bearing is fixedly provided on the top of the mechanism outer frame, a rotating shaft is fixedly provided on the middle of the bearing, a milling cutter head is fixedly installed on one end of the rotating shaft, and the milling cutter head is in a frustum shape. An auxiliary shaft is rotatably installed on the bottom of the mechanism outer frame, a first sprocket is fixedly installed on the end of the rotating shaft away from the milling cutter head, a second sprocket is fixedly installed on the outer side of the auxiliary shaft, and a transmission chain is meshed and connected with the outer sides of the first sprocket and the second sprocket. A first motor is fixedly installed on the mechanism outer frame, and a driving end of the first motor and one end of the auxiliary shaft are fixedly installed. Two cross slides are provided on the middle sliding card on the side of the mechanism outer frame away from the milling cutter head, and positioning wheels are rotatably installed on the ends of the two cross slides away from the mechanism outer frame.

2. A stainless steel bar straight edge hole processing device according to claim 1, characterized in that: A connecting longitudinal frame is vertically installed on one end of the two transverse sliding frames away from the positioning wheel, a telescopic cylinder is fixedly installed on the outer frame of the mechanism, and the driving end of the telescopic cylinder is fixedly installed on the middle part of the connecting longitudinal frame.

3. The device for processing straight-edge holes in stainless steel bars according to claim 1, characterized in that: A driving gear is provided on the top movable card of one of the mounting longitudinal frames, a driving shaft is fixedly installed in the middle of the driving gear, and the driving shaft is rotatably installed on the top of the mounting longitudinal frame. A driven rack is provided on the side end of the lifting slide and is used in conjunction with the driving gear, and the driving gear and the driven rack are meshingly connected.

4. A stainless steel bar straight edge hole processing device according to claim 3, characterized in that: A driven worm wheel is fixedly mounted on one end of the driving shaft, a driving worm is meshingly connected to the outer side of the driven worm wheel, and the driving worm is rotatably mounted on the outer side of the mounting longitudinal frame.

5. The device for processing straight-edge holes in stainless steel bars according to claim 4, characterized in that: A second motor is fixedly mounted on one side of the outer wall of the mounting longitudinal frame close to the driving worm, and a driving end of the second motor and one end of the driving worm are fixedly mounted.

6. The device for processing straight-edge holes in stainless steel bars according to claim 1, characterized in that: A connecting bracket is fixedly mounted on the bottom end of the mechanism outer frame, a connecting slot corresponding to the connecting bracket is opened on the top end of the lifting slide, and the connecting bracket is fixedly clamped in the connecting slot by bolts.

7. A stainless steel bar straight edge hole processing device according to claim 6, characterized in that: There are a plurality of lifting slides, a top end of each lifting slide is provided with a connecting slot, and a bottom end of each lifting slide is provided with a connecting bracket for connecting two adjacent lifting slides.

8. A method for processing a straight-edge hole in a stainless steel bar, characterized in that: The processing steps include: First, the stainless steel bar is positioned vertically by an external fixture; Then, an external drilling mechanism is used to vertically drill an auxiliary circular hole at an eccentric position of the stainless steel bar; Then, according to the drilling depth of the stainless steel bar, a lifting slide with a suitable length is selected for the processing device of the straight-edge hole of the stainless steel bar; Next, the first motor of the processing device for opening the straight-edge hole of the stainless steel bar is controlled to drive the auxiliary shaft to rotate, and the first sprocket and the second sprocket are meshed and connected with the transmission chain, thereby driving the rotating shaft and the milling cutter head to rotate at high speed; At the same time, the second motor of the processing device for opening the straight-edge hole of the stainless steel bar controls the driving worm to drive the driven worm wheel to rotate, thereby controlling the driving shaft and the driving gear to rotate, cooperating with the driving gear and the driven rack to mesh and connect, driving the lifting slide to slide on the driving outer frame, thereby controlling the processing mechanism to slide upward, causing the milling cutter head to rotate and move upward at high speed, milling a straight hole on one side of the auxiliary circular hole in the stainless steel bar, and at the same time controlling the opening of the telescopic cylinder to drive the connecting longitudinal frame to control the horizontal movement of the two transverse slides, thereby driving the positioning wheel to move horizontally, so that the outer wall of the positioning wheel contacts the inner wall of the auxiliary circular hole, thereby realizing the inner support positioning of the processing mechanism in the stainless steel bar in turn; Finally, when the straight hole is milled, an external milling mechanism is used to mill other parts between the auxiliary circular hole and the straight hole that has been milled to form a straight-edge hole.

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