A special numerical control machine tool for milling automobile hinge profile steel

Abstract

The application discloses a special numerical control machine tool for milling automobile hinge type steel, and belongs to the technical field of numerical control machine tools for milling type steel, which comprises a machine tool frame body, an electrical system connected with the machine tool frame body, a horizontal head sliding table arranged on the machine tool frame body, a horizontal milling assembly in sliding connection with the horizontal head sliding table, a stand column arranged on the machine tool frame body, a transposition structure installed on the stand column, a side milling assembly connected with the transposition structure, a clamping limiting mechanism driven by a cylinder and arranged at equal intervals on the machine tool frame body, two groups of supporting seats arranged at equal intervals on the machine tool frame body, and supporting roller shafts in bearing connection between the supporting seats. The application can not only clean the metal scraps on the lower surface of the type steel, avoid the increase of the abrasion of the supporting roller shafts caused by the metal scraps, thereby delaying the replacement period of the supporting roller shafts, but also clean the metal scraps on the upper surface of the type steel, and avoid the influence of the metal scraps on the upper surface of the type steel on the precision of subsequent processing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools for section steel milling, in particular to a numerical control machine tool special for milling automobile hinge section steel. BACKGROUND

[0002] Milling is a mechanical processing method for processing object surface with a milling cutter, and the milling machine includes horizontal milling machine, vertical milling machine, gantry milling machine, profiling milling machine, universal milling machine and lever milling machine, and the numerical control machine tool for milling automobile hinge section steel is a numerical control machine tool special for milling automobile hinge section steel.

[0003] The existing numerical control machine tool special for milling automobile hinge section steel needs to be replaced after a period of use because part of the metal scraps is adsorbed on the surface of the section steel after milling, which causes great wear of the part of the section steel conveying structure during the conveying process of the section steel.

[0004] In addition, the metal scraps adsorbed on the section steel affect the precision of subsequent processing of the section steel, which is not conducive to improving the precision of section steel processing.

[0005] Therefore, a numerical control machine tool special for milling automobile hinge section steel is needed to solve the above problems. SUMMARY

[0006] The present application aims to provide a numerical control machine tool special for milling automobile hinge section steel to solve the problem that the existing numerical control machine tool special for milling automobile hinge section steel affects the section steel conveying structure after milling, which reduces the service life of the section steel conveying structure and affects the precision of subsequent processing of the section steel.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A numerical control machine tool special for milling automobile hinge section steel comprises a machine tool frame body and an electrical system connected thereto, a horizontal head sliding table is arranged on the machine tool frame body, a horizontal milling assembly is slidingly connected to the horizontal head sliding table, a vertical column is arranged on the machine tool frame body, a transposition structure is installed on the vertical column, a side milling assembly is connected to the transposition structure, a clamping limiting mechanism driven by a gas cylinder is arranged on the machine tool frame body at equal intervals, two groups of support seats are also arranged on the machine tool frame body at equal intervals, support rollers are connected between the opposite support seats through bearings, and a scrap cleaning mechanism is connected to the support rollers, the scrap cleaning mechanism comprises a spray hole for spraying gas, gas conveying mechanisms are connected to both ends of the support rollers, and the gas conveying mechanisms comprise gas cavities arranged on the upper surface of the machine tool frame body.

[0009] Preferably, the debris cleaning mechanism further comprises two sets of connecting seats and two sets of mounting seats arranged equidistantly on the upper surface of the machine tool frame body, and the connecting seats and the mounting seats are arranged on the two sides of the corresponding support seats, respectively, and the opposite connecting seats and the opposite mounting seats are respectively connected with the lower shaft tube and the upper shaft tube through bearings, and the spray holes are arranged on the lower shaft tube and the upper shaft tube.

[0010] Preferably, the two ends of the lower shaft tube and the upper shaft tube are equidistantly distributed with spray holes penetrating therethrough, the spray holes on the lower shaft tube are arranged obliquely upward, the spray holes on the upper shaft tube are arranged obliquely downward, and the spray holes on the lower shaft tube and the upper shaft tube are obliquely directed to the reverse direction of the profile steel conveying.

[0011] Preferably, the debris cleaning mechanism further comprises a slag discharge hole arranged on the machine tool frame body, and the slag discharge hole penetrates through the upper and lower sides of the machine tool frame body, the middle outer side of the support roller shaft is connected with a driven gear disc, the middle outer side of the lower shaft tube and the upper shaft tube is connected with a transmission disc, and the two transmission discs and the driven gear disc are connected through a transmission belt.

[0012] Preferably, the inner side of the part of the transmission belt close to the driven gear disc is provided with teeth, and only 1 / 3 of the circumference of the driven gear disc is continuously provided with teeth.

[0013] Preferably, torsional springs are arranged between the two ends of the lower shaft tube and the corresponding connecting seats and between the two ends of the upper shaft tube and the corresponding mounting seats, so that when the support roller shaft rotates by the extrusion of the profile steel, the driven gear disc cooperates with the transmission belt to twist the torsional springs, and the lower shaft tube and the upper shaft tube reciprocate to rotate, so as to realize the purpose of swing of the spray holes.

[0014] Preferably, the gas conveying mechanism further comprises a piston sheet connected seamlessly inside each gas cavity, and the two sides of the bottom end of each gas cavity are connected to the upper surface of the machine tool frame body through the gas channel arranged on the machine tool frame body, the lower shaft tube and the upper shaft tube are connected with the corresponding gas channel through the gas guide pipe one and the gas guide pipe two, and each gas cavity is further provided with a one-way air inlet hole penetrating to the outside of the machine tool frame body.

[0015] Preferably, the two ends of the support roller shaft are connected with the corresponding support seats through bearings, and the two ends of the support roller shaft are fixedly connected with the coaxial wheel discs, the upper end of the shaft rod is connected with the shaft of the wheel disc, and the lower end of the shaft rod is connected with the upper surface of the corresponding piston sheet.

[0016] Preferably, the upper end of the shaft rod is connected to the eccentric position of the wheel disc, and the opposite two wheel discs are connected with the opposite parts of the corresponding shaft rods, so as to ensure that the movement directions of the opposite two piston sheets are always opposite.

[0017] Compared with the prior art, the beneficial effects of the application are that the special numerical control machine tool for milling automobile hinge section steel can not only clean the metal scraps on the lower surface of the section steel, avoid the metal scraps increasing the abrasion of the supporting roller shaft, thereby delaying the replacement cycle of the supporting roller shaft, but also clean the metal scraps on the upper surface of the section steel, avoiding the metal scraps on the upper surface of the section steel affecting the precision of subsequent processing.

[0018] 1. In the process of conveying the section steel, the supporting roller shaft is rotated due to the extrusion of the section steel, the connecting wheel disc is also rotated synchronously in the process of rotation, and then the piston plate is driven to move up and down reciprocatingly through the shaft coupling rod, in the process of moving up and down reciprocatingly, the piston plate can continuously convey the external gas to the lower shaft pipe through the one-way air inlet hole, and make the gas be sprayed out at high speed through the spray hole on the lower shaft pipe, so that the part of the section steel with the metal scraps attached thereon is cleaned by the high-speed air sprayed out of the spray hole before contacting the supporting roller shaft, the metal scraps attached to the section steel do not contact the supporting roller shaft, the abrasion of the supporting roller shaft is not increased, the period of replacing the supporting roller shaft is prolonged, and the cleaned metal scraps fall into the position of the slag discharge hole and are discharged out of the machine frame.

[0019] 2. In the process of moving up and down reciprocatingly, the piston plate also continuously conveys the external gas to the upper shaft pipe, and then the spray hole on the upper shaft pipe can spray the high-speed air to the upper surface of the section steel, so that the upper surface of the section steel is cleaned, and the metal scraps attached to the upper surface of the section steel do not affect the precision of subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a main view structure schematic diagram of the application;

[0021] Figure 2 It is a local main view structure schematic diagram of the application;

[0022] Figure 3 It is a local rear view structure schematic diagram of the application;

[0023] Figure 4 It is a main view structure schematic diagram of the application; Figure 3 It is an enlarged structure schematic diagram of point A in the application;

[0024] Figure 5 It is a connecting structure schematic diagram of the supporting roller shaft and the upper shaft pipe in the application;

[0025] Figure 6 It is a local sectional view structure schematic diagram of the application;

[0026] Figure 7 It is an enlarged structure schematic diagram of point B in the application; Figure 6

[0027] Figure 8 ​It is a machine tool frame body and slag hole position structure schematic diagram of the present application.

[0028] Figure 9 It is a machine tool frame body and slag hole position structure schematic diagram of the present application. Figure 8 It is a machine tool frame body and slag hole position structure schematic diagram of the present application.

[0029] In the figure: 1, machine tool frame body; 2, electrical system; 3, horizontal head sliding table; 4, horizontal milling assembly; 5, column; 6, indexing structure; 7, side milling assembly; 8, clamping limiting mechanism; 9, supporting roller shaft; 10, one-way air inlet hole; 11, air cavity; 12, air guide pipe one; 13, air guide pipe two; 14, lower shaft pipe; 15, spray hole; 16, wheel disc; 17, supporting seat; 18, upper shaft pipe; 19, air channel; 20, piston sheet; 21, coupling rod; 22, slag hole; 23, transmission disc; 24, transmission belt; 25, driven gear disc; 26, connecting seat; 27, mounting seat. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-9 The present application provides the following technical solutions:

[0032] Embodiment one: To solve the problem that metal scraps generated in the machining process will adhere to the section steel on the automobile hinge section steel milling CNC machine tool in use, thereby increasing the wear of the supporting roller shaft 9 conveying the section steel, and also affecting the precision of subsequent machining, the present application provides the following technical solutions, specifically, a special CNC machine tool for automobile hinge section steel milling, comprising a machine tool frame body 1 and an electrical system 2 connected thereto, a horizontal head sliding table 3 is arranged on the machine tool frame body 1, and a horizontal milling assembly 4 is slidingly connected to the horizontal head sliding table 3, a column 5 is also arranged on the machine tool frame body 1, and an indexing structure 6 is installed on the column 5, a side milling assembly 7 is connected to the indexing structure 6, a clamping limiting mechanism 8 driven by an air cylinder is arranged at equal intervals on the machine tool frame body 1, and two groups of supporting seats 17 are also arranged at equal intervals on the machine tool frame body 1, supporting roller shafts 9 are connected by bearings between the opposite supporting seats 17, and a scrap cleaning mechanism is connected to the supporting roller shafts 9, the scrap cleaning mechanism comprises spray holes 15 for spraying gas, gas supply mechanisms are connected to both ends of the supporting roller shafts 9, and the gas supply mechanisms comprise air cavities 11 arranged on the upper surface of the machine tool frame body 1.

[0033] The debris cleaning mechanism further comprises two groups of connecting seats 26 and two groups of mounting seats 27 arranged equidistantly on the upper surface of the machine tool frame body 1, and the connecting seats 26 and the mounting seats 27 are arranged on the two sides of the corresponding support seats 17 respectively, and the lower shaft tube 14 and the upper shaft tube 18 are connected by bearings between the opposite connecting seats 26 and the opposite mounting seats 27 respectively, and the spray holes 15 are arranged on the lower shaft tube 14 and the upper shaft tube 18, and the two ends of the lower shaft tube 14 and the upper shaft tube 18 are equidistantly distributed with the spray holes 15 penetrating therethrough, the spray holes 15 on the lower shaft tube 14 are arranged obliquely upward, the spray holes 15 on the upper shaft tube 18 are arranged obliquely downward, and the spray holes 15 on the lower shaft tube 14 and the upper shaft tube 18 are obliquely directed to the reverse direction of the profile steel conveying, and the debris cleaning mechanism further comprises a slag discharge hole 22 arranged on the machine tool frame body 1, and the slag discharge hole 22 penetrates through the upper and lower sides of the machine tool frame body 1.

[0034] According to Figures 3-5 , the gas entering the lower shaft tube 14 and the upper shaft tube 18 is sprayed out from the spray holes 15, and since the inner diameter of the spray holes 15 is small, the gas is sprayed out at a large speed, thereby being able to clean the upper and lower surfaces of the profile steel, not only avoiding excessive wear of the support roller shaft 9 caused by contact with metal debris, but also avoiding the influence of metal debris on the precision of subsequent processing of the profile steel.

[0035] The gas conveying mechanism further comprises a piston sheet 20 connected seamlessly inside each gas cavity 11, and the two sides of the bottom end of each gas cavity 11 are connected to the upper surface of the machine tool frame body 1 through the gas channel 19 arranged on the machine tool frame body 1, and the lower shaft tube 14 and the upper shaft tube 18 are connected through the gas guide pipe one 12 and the gas guide pipe two 13 and the corresponding gas channel 19, and each gas cavity 11 is further provided with a one-way air inlet hole 10 penetrating to the outside of the machine tool frame body 1, and the two ends of the support roller shaft 9 are connected by bearings through the corresponding support seat 17, and the two ends of the support roller shaft 9 are fixedly connected with the coaxial wheel disc 16, the upper end of the shaft connecting rod 21 is connected with the wheel disc 16, and the lower end of the shaft connecting rod 21 is connected with the upper surface of the corresponding piston sheet 20, the upper end of the shaft connecting rod 21 is connected with the eccentric position of the wheel disc 16, and the positions of the opposite two wheel discs 16 connected with the corresponding shaft connecting rod 21 are opposite, so as to ensure that the movement directions of the opposite two piston sheets 20 are always opposite.

[0036] According to Figures 6-7 , during the conveying process of the profile steel, the support roller shaft 9 is rotated by extrusion of the profile steel, and the wheel disc 16 coaxial with the support roller shaft 9 is rotated synchronously, and the wheel disc 16 rotates to drive the piston sheet 20 to move up and down through the shaft connecting rod 21, thereby cooperating with the one-way air inlet hole 10 to continuously convey the external gas source into the lower shaft tube 14 and the upper shaft tube 18.

[0037] In order to solve the problem of poor metal debris cleaning effect in the first embodiment, the following technical solution is provided, specifically, the middle outer side of the supporting roller shaft 9 is connected with a driven gear disc 25, the middle outer side of the lower shaft tube 14 and the upper shaft tube 18 are both connected with a transmission disc 23, and the two transmission discs 23 and the driven gear disc 25 are connected through a transmission belt 24.

[0038] The inner side of the part of the transmission belt 24 close to the driven gear disc 25 is provided with teeth, and only 1 / 3 of the circumference of the driven gear disc 25 is provided with teeth, the two ends of the lower shaft tube 14 and the corresponding connecting seat 26 are both provided with torsion springs, and the two ends of the upper shaft tube 18 and the corresponding mounting seat 27 are both provided with torsion springs, so as to facilitate the driven gear disc 25 to cooperate with the torsion spring of the transmission belt 24 when the supporting roller shaft 9 rotates through the extrusion of the profile steel, and make the lower shaft tube 14 and the upper shaft tube 18 reciprocate to realize the swinging of the spray hole 15.

[0039] According to the above Figures 8-9 , when the supporting roller shaft 9 rotates, the driven gear disc 25 can be driven to rotate synchronously, when the driven gear disc 25 meshes with the transmission belt 24, the upper shaft tube 18 and the lower shaft tube 14 will be driven to rotate and move, when the driven gear disc 25 is disconnected from the meshing of the transmission belt 24, the upper shaft tube 18 and the lower shaft tube 14 will reset under the action of the torsion spring, and then the upper shaft tube 18 and the lower shaft tube 14 can reciprocate, and through the reciprocating of the upper shaft tube 18 and the lower shaft tube 14, the cleaning effect of metal debris can be improved.

[0040] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A CNC machine for milling of automotive hinge profile steel, comprising a machine frame (1) and an electrical system (2) connected thereto, characterized in that: The machine tool frame body (1) is provided with a horizontal head sliding table (3), and the horizontal head sliding table (3) is slidably connected with a horizontal milling assembly (4); the machine tool frame body (1) is also provided with a vertical column (5), and the vertical column (5) is installed with a transposition structure (6); the transposition structure (6) is connected with a side milling assembly (7); the machine tool frame body (1) is provided with cylinder-driven clamping limiting mechanisms (8) at equal intervals; the machine tool frame body (1) is also provided with two groups of supporting seats (17) at equal intervals; the supporting seats (17) are connected with supporting roller shafts (9) through bearings; the supporting roller shafts (9) are connected with a chip cleaning mechanism; the supporting roller shafts (9) are supported below the profile steel; when the profile steel is conveyed, the supporting roller shafts (9) are squeezed to rotate; the chip cleaning mechanism comprises a spray hole (15) for spraying gas; the two ends of the supporting roller shaft (9) are connected with a gas conveying mechanism; the gas conveying mechanism comprises a gas cavity (11) arranged on the upper surface of the machine tool frame body (1); the gas conveying mechanism also comprises a piston sheet (20) slidably connected in each gas cavity (11); each gas cavity (11) is provided with a one-way air inlet hole (10) penetrating to the outside of the machine tool frame body (1); the two ends of the supporting roller shaft (9) are penetrated through the corresponding supporting seats (17) through bearings; the two ends of the supporting roller shaft (9) are fixedly connected with coaxial wheel discs (16); the upper end of a shaft coupling rod (21) is connected with the wheel disc (16); the lower end of the shaft coupling rod (21) is connected with the upper surface of the corresponding piston sheet (20); the upper end of the shaft coupling rod (21) is connected with the eccentric position of the wheel disc (16); the positions of the opposite two wheel discs (16) connected with the corresponding shaft coupling rods (21) are opposite; the moving directions of the opposite two piston sheets (20) are always opposite.

2. The CNC machine tool for milling of automotive hinge profile steel as claimed in claim 1 wherein: The chip cleaning mechanism also comprises two groups of connecting seats (26) and two groups of mounting seats (27) arranged at equal intervals on the upper surface of the machine tool frame body (1); the connecting seats (26) and the mounting seats (27) are arranged on the two sides of the corresponding supporting seats (17); the opposite connecting seats (26) and the opposite mounting seats (27) are connected with lower shaft tubes (14) and upper shaft tubes (18) through bearings; the spray holes (15) are arranged on the lower shaft tubes (14) and the upper shaft tubes (18).

3. The CNC machine tool for milling of automotive hinge profile steel as claimed in claim 2 wherein: The two ends of the lower shaft tubes (14) and the upper shaft tubes (18) are arranged with spray holes (15) penetrating therethrough at equal intervals; the spray holes (15) on the lower shaft tubes (14) are arranged obliquely upward; the spray holes (15) on the upper shaft tubes (18) are arranged obliquely downward; the spray holes (15) on the lower shaft tubes (14) and the upper shaft tubes (18) are obliquely arranged toward the opposite direction of the conveying direction of the profile steel.

4. The special CNC machine for milling of automotive hinge profile steel according to claim 3, characterized in that: The scrap cleaning mechanism further comprises a slag discharge hole (22) arranged on the machine tool frame body (1), the slag discharge hole (22) penetrates the upper and lower sides of the machine tool frame body (1), the middle outer side of the support roller shaft (9) is connected with a driven gear disc (25), the middle outer sides of the lower shaft tube (14) and the upper shaft tube (18) are both connected with a transmission disc (23), and the two transmission discs (23) and the driven gear disc (25) are connected through a transmission belt (24).

5. The CNC machine tool for milling of automotive hinge profile steel as claimed in claim 4 wherein: The inner side of the part of the transmission belt (24) close to the driven gear disc (25) is provided with teeth, and only 1 / 3 of the circumference of the driven gear disc (25) is provided with teeth.

6. The CNC machine tool for milling of automotive hinge profile steel as claimed in claim 5 wherein: The two ends of the lower shaft tube (14) and the two ends of the upper shaft tube (18) are both provided with torsion springs between the corresponding connecting seats (26) and the corresponding mounting seats (27), so that when the support roller shaft (9) rotates through the extrusion of the profile steel, the driven gear disc (25) cooperates with the transmission belt (24) to twist the torsion spring, the lower shaft tube (14) and the upper shaft tube (18) reciprocate, and the purpose of swinging the spray hole (15) is achieved.

7. The CNC machine tool for milling of automotive hinge profile steel as claimed in claim 6 wherein: The two sides of the inner bottom end of each air cavity (11) are connected to the upper surface of the machine tool frame body (1) through the air duct (19) arranged on the machine tool frame body (1), and the lower shaft tube (14) and the upper shaft tube (18) are respectively connected with the corresponding air duct (19) through the air guide pipe one (12) and the air guide pipe two (13).

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