A spray device for precision machining

Abstract

A spray device for precision machining includes a spray head, a swing mechanism and a spray base. The spray base is provided with a spray head driving mechanism, the swing mechanism is connected to the spray head driving mechanism, and the swing mechanism can be slidably mounted on the spray base. The spray head can be swingably mounted on the swing mechanism. The swing mechanism is driven by the spray head driving mechanism to slide on the spray base, driving the spray head to move on the spray base, so as to adjust the position of the spray head, so as to facilitate the spray head to be aligned with the tip of the tool, and the spray head is driven by the swing mechanism to swing, so as to realize the swinging spray of the spray head on the processing part, and prevent the waste chips generated by the processing from being wound on the tip of the tool. The spray head driving mechanism is provided on the spray device, which is used to drive the spray head to move. The position of the spray head can be adjusted according to the processing requirements before processing, so as to ensure that the spray head is facing the processing part of the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of numerically controlled machine tools, and in particular relates to a spray device for precision machining. Background Art

[0002] CNC machine tools are digitally controlled machine tools, which are automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing.

[0003] During CNC machining, it is often necessary to set up multiple spray pipes facing the workpiece or tool tip. Currently, most CNC machine tools use bamboo tubes as spray pipes to spray the workpiece or tool tip. Although the angle adjustment of the bamboo tube is relatively convenient, the angle of the spray pipe cannot be swung during the machining process, which affects the spraying effect and easily causes problems such as waste chips entanglement in the tool. Summary of the invention

[0004] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a spray device for precision machining, which is used to improve the spray effect of the spray device.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A spray device for precision machining comprises a spray head, a swing mechanism and a spray base, wherein a spray head driving mechanism is provided on the spray base, the swing mechanism is connected to the spray head driving mechanism, and the swing mechanism is slidably mounted on the spray base, the swing mechanism is driven by the spray head driving mechanism to slide on the spray base, the spray head is swingably mounted on the swing mechanism, a connecting bracket connected to the swing mechanism is swingably mounted on the spray head, and an installation cavity for installing the connecting bracket is provided in the swing mechanism; the swing mechanism comprises a swing motor, a swing lead screw and a swing slider, the swing lead screw is connected to the swing motor, the swing slider is connected to the swing lead screw, the swing slider is mounted on the connecting bracket, the connecting bracket is driven to move by the swing motor to drive the spray head to swing.

[0007] As a preferred solution of the present invention, an opening groove is provided on one side of the installation cavity, and the spray head extends out of the installation cavity through the opening groove.

[0008] As a preferred solution of the present invention, a connecting shaft is provided on the spray head, a connecting groove for installing the connecting shaft is provided on the connecting bracket, a connecting ring is provided in the connecting groove, and the connecting shaft is connected to the connecting ring.

[0009] As a preferred solution of the present invention, the swing mechanism also includes a sliding seat and a swing end cover installed on the sliding seat. The sliding seat is slidably installed on the spray base. A swing cavity is provided in the sliding seat. The spray head is installed in the swing cavity through the swing end cover. The installation cavity is arranged on the swing end cover.

[0010] As a preferred solution of the present invention, the spray head includes a spray pipe and a ball head. The spray pipe is installed on the ball head, and the ball head is rotatably installed in the swing cavity.

[0011] As a preferred solution of the present invention, the nozzle driving mechanism includes a translation motor, a driving gear and a rack, the driving gear is installed on the translation motor, the rack is fixed on the swing mechanism, and the driving gear is meshed with the rack to drive the swing mechanism to translate through the translation motor.

[0012] As a preferred solution of the present invention, a liquid inlet cavity and a telescopic tube are provided in the spray base, the telescopic tube is slidably connected to the liquid inlet cavity, one end of the telescopic tube extends into the liquid inlet cavity, and the other end of the telescopic tube is connected to the spray head, and a first sealing member is provided at the connection between the telescopic tube and the liquid inlet cavity.

[0013] As a preferred solution of the present invention, a telescopic cavity is further provided in the spray base, the telescopic tube is slidably installed in the telescopic cavity, and a second sealing member is provided at the connection between the telescopic cavity and the telescopic tube.

[0014] As a preferred solution of the present invention, the first sealing member and the second sealing member have the same structure and both include a sealing spring and a sealing ring. The sealing spring is sleeved on the outside of the telescopic tube and abuts against the sealing ring so that the sealing ring abuts against the connection between the telescopic tube and the liquid inlet cavity or the connection between the telescopic cavity and the telescopic tube.

[0015] As a preferred solution of the present invention, a bevel is provided on the sealing ring, and the sealing spring abuts against the bevel.

[0016] The beneficial effects of the present invention are as follows: (1) a spray head driving mechanism is provided on the spray device to drive the spray head to move, and the position of the spray head can be adjusted before processing according to processing requirements, so as to ensure that the spray head is facing the processing part of the workpiece.

[0017] (2) The spray device is provided with a swing mechanism to facilitate driving the spray head to swing, thereby realizing swing-type spraying on the processing part and preventing the waste chips generated by the processing from being wrapped around the tool tip.

[0018] (3) The swing motor is rotated forward and reversely to drive the swing screw to rotate, driving the swing slider to move back and forth, thereby driving the connecting bracket to slide in the installation cavity, so that the sprinkler head can swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the spray device.

[0020] Figure 2 This is a partial enlarged view of point A.

[0021] Figure 3 It is a cross-sectional view of the spray device.

[0022] Figure 4 This is a partial enlarged view of point B.

[0023] Figure 5 It is a structural schematic diagram of the first molding seat.

[0024] Figure 6 It is a structural schematic diagram of the second forming seat.

[0025] Figure 7 It is a structural schematic diagram of the connecting bracket.

[0026] Figure 8 It is a schematic diagram of the spray device installed on the knife holder.

[0027] Reference numerals: spray head 1, connecting shaft 1-1, spray pipe 1-2, ball head 1-3, swing mechanism 2, installation cavity 2-1, opening groove 2-2, Swing motor 2-3, swing screw 2-4, swing slider 2-5, sliding seat 2-6, swing end cover 2-7, swing cavity 2-8, through hole 2-9, spray base 3, liquid inlet cavity 3-1, telescopic tube 3-2, telescopic cavity 3-3, sealing spring 3-4, sealing ring 3-5, base shell 3-6, first forming seat 3-7, second forming seat 3-8, annular groove 3-9, telescopic groove 3-10, annular protrusion 3-11, baffle groove 3-12, baffle 3-13, pipe channel 3-14, limit ring 3-15, inclined surface 3-16, slide groove 3-17, nozzle drive mechanism 4, translation motor 4-1, drive gear 4-2, rack 4-3, connecting bracket 5, connecting groove 5-1, connecting ring 5-2, electromagnet 6, knife seat 7. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] A spray device for precision machining comprises a spray head 1, a swing mechanism 2 and a spray base 3. A spray head driving mechanism 4 is provided on the spray base 3. The swing mechanism 2 is connected to the spray head driving mechanism 4, and the swing mechanism 2 can be slidably mounted on the spray base 3. The spray head 1 can be swingably mounted on the swing mechanism 2. The swing mechanism 2 is driven by the spray head driving mechanism 4 to slide on the spray base 3, thereby driving the spray head 1 to move on the spray base 3, so as to adjust the position of the spray head 1, facilitate the setting of the spray head 2 to align the spray head 2 with the tip of a tool, and drive the spray head 1 to swing by the swing mechanism 2, so as to realize the swinging spraying of the spray head 1 on the machining part, thereby preventing the waste chips generated by the machining from being wound around the tip of the tool.

[0030] Before the spray device works, the spray head 1 is moved by the spray head driving mechanism 4 to align the spray head 2 with the tip of the tool. During the processing, the reciprocating motion of the swing mechanism 2 drives the spray head 1 to swing back and forth, thereby realizing swing-type spraying of the processing part.

[0031] The swing mechanism 2 includes a swing motor 2-3, a swing screw 2-4, a swing slider 2-5, a sliding seat 2-6 and a swing end cover 2-7. The sliding seat 2-6 is slidably installed on the spray base 3. The sliding seat 2-6 is driven to move by the nozzle driving mechanism 4 to change the relative position of the spray head 1. The swing end cover 2-7 is installed on the sliding seat 2-6. A swing cavity 2-8 is provided in the sliding seat 2-6. The spray head 1 is installed in the swing cavity 2-8 through the swing end cover 2-7. An installation cavity 2-1 is provided in the swing end cover 2-7, and a connecting bracket 5 is installed in the installation cavity 2-1. The connecting bracket 5 is connected to the sprinkler head 1 to drive the sprinkler head 1 to swing. The swing motor 2-3 is installed on the swing end cover 2-7. The swing screw 2-4 is connected to the swing motor 2-3. The swing slider 2-5 is connected to the swing screw 2-4, and the swing slider 2-5 is installed on the connecting bracket 5. The swing motor 2-3 is rotated forward and reversely to drive the swing screw 2-4 to rotate, driving the swing slider 2-5 to move back and forth, thereby driving the connecting bracket 5 to slide in the installation cavity 2-1, so that the sprinkler head 1 can swing.

[0032] An opening groove 2-2 is provided on one side of the installation cavity 2-1. After the end of the spray head 1 passes through the installation cavity 2-1, it extends out of the swing end cover 2-7 through the opening groove 2-2. Preferably, the opening groove 2-2 is a waist-shaped groove with one side open, and the swing of the spray head 1 is guided by the opening groove 2-2.

[0033] A connecting shaft 1-1 is provided on the sprinkler head 1, a connecting groove 5-1 for installing the connecting shaft 1-1 is provided on the connecting bracket 5, a connecting ring 5-2 is provided in the connecting groove 5-1, the connecting shaft 1-1 is connected to the connecting ring 5-2, and the cross-section of the connecting ring 5-2 is semicircular, so that the connecting shaft 1-1 and the connecting ring 5-2 are in line contact, thereby preventing the connecting shaft 1-1 and the connecting groove 5-1 from interfering with each other during the swinging of the sprinkler head 1.

[0034] The spray head 1 includes a spray pipe 1-2 and a ball head 1-3. The ball head 1-3 is sleeved on the outside of the spray pipe 1-2, and the ball head 1-3 is rotatably installed in the swing cavity 2-8. A through hole 2-9 is provided in the middle of the sliding seat 2-6. The through hole 2-9 is connected to the swing cavity 2-8 to facilitate the coolant to flow into the spray pipe 1-2 through the through hole 2-9.

[0035] The nozzle driving mechanism 4 includes a translation motor 4-1, a driving gear 4-2 and a rack 4-3. The driving gear 4-2 is installed on the translation motor 4-1, and the rack 4-3 is fixed on the sliding seat 2-6 of the swing mechanism 2. The driving gear 4-2 is meshed with the rack 4-3 to drive the swing mechanism 2 to translate through the translation motor 4-1.

[0036] The spray base 3 includes a base shell 3-6, a first molding seat 3-7 and a second molding seat 3-8. An annular groove 3-9 and a telescopic groove 3-10 are formed on the first molding seat 3-7. An annular protrusion 3-11 and a baffle groove 3-12 are provided at the bottom of the second molding seat 3-8. After the first molding seat 3-7 and the second molding seat 3-8 are assembled, the annular protrusion 3-11 is snapped into the annular groove 3-9 to form a liquid inlet chamber 3-1. Preferably, an external water pipe is connected to the liquid inlet chamber 3-1, and cooling liquid is provided to the liquid inlet chamber 3-1 through the external water pipe; the baffle groove 3-12 is arranged above the telescopic groove 3-10, and the width of the telescopic groove 3-10 is greater than the width of the baffle groove 3-12, so as to facilitate the arrangement of a baffle 3-13 in the telescopic groove 3-10 that can move relative to the first molding seat 3-7 and the second molding seat 3-8, and the baffle 3-13 and the telescopic groove 3-10 cooperate to form a telescopic chamber 3-3. Preferably, the length of the baffle 3-13 is at least twice the length of the baffle groove 3-12, ensuring that the baffle 3-13 always covers the opening of the baffle groove 3-12 and improving the sealing of the telescopic cavity 3-3.

[0037] In order to facilitate the sliding of the swing mechanism 2 on the spray base 3, a slide groove 3-17 is provided on the base shell 3-6, and grooves are provided on both sides of the sliding seat 2-6. The sliding seat 2-6 is slidably connected to the slide groove 3-17 through the groove.

[0038] A pipe channel 3-14 is provided between the telescopic chamber 3-3 and the liquid inlet chamber 3-1, and a telescopic tube 3-2 is slidably installed in the pipe channel. One end of the telescopic tube 3-2 extends into the liquid inlet chamber 3-1, and the other end of the telescopic tube 3-2 is connected to the spray head 1, so that the telescopic tube 3-2 slides relative to the liquid inlet chamber 3-1 as the spray head 1 moves. A first seal is provided at the connection between the telescopic tube 3-2 and the liquid inlet chamber 3-1, and a second seal is provided at the connection between the telescopic chamber 3-3 and the telescopic tube 3-2. The gap between the telescopic tube 3-2 and the pipe channel is sealed by the cooperation of the first seal and the second seal to prevent the coolant from penetrating into the telescopic chamber 3-3.

[0039] The first sealing member and the second sealing member have the same structure, and both include a sealing spring 3-4 and a sealing ring 3-5. The sealing spring 3-4 is sleeved on the outside of the telescopic tube 3-2 and abuts against the sealing ring 3-5, so that the sealing ring 3-5 abuts against the connection between the telescopic tube 3-2 and the liquid inlet chamber 3-1 or the connection between the telescopic chamber 3-3 and the telescopic tube 3-2. By arranging the first sealing member and the second sealing member of the same structure on both sides of the telescopic tube 3-2, it is ensured that during the relative movement of the telescopic tube 3-2, at least one sealing ring 3-5 abuts against the connection between the telescopic tube 3-2 and the pipe passage 3-14, thereby ensuring the sealing of the connection between the telescopic tube 3-2 and the pipe passage 3-14.

[0040] Two limit rings 3-15 are provided on the telescopic tube 3-2, and the sealing spring 3-4 abuts against the limit rings 3-15. A slope 3-16 is provided on the sealing ring 3-5, and the sealing spring 3-4 abuts against the slope 3-16. Through the setting of the slope 3-16, the sealing spring 3-4 provides a certain radial tightening force to the sealing ring 3-5, thereby further ensuring the sealing of the connection between the telescopic tube 3-2 and the pipe channel 3-14.

[0041] An electromagnet 6 is installed at the bottom of the spray base 3, and the spray device is installed on a knife seat 7, a knife tower, etc. through the electromagnet 6.

[0042] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0043] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A spray device for precision machining, characterized in that: The invention comprises a spray head (1), a swing mechanism (2) and a spray base (3); a spray head driving mechanism (4) is provided on the spray base (3); the swing mechanism (2) is connected to the spray head driving mechanism (4); the swing mechanism (2) is slidably mounted on the spray base (3); the swing mechanism (2) is driven by the spray head driving mechanism (4) to slide on the spray base (3); the spray head (1) is swingably mounted on the swing mechanism (2); a connecting bracket (5) connected to the swing mechanism (2) is swingably mounted on the spray head (1); and a mounting cavity (2-1) for mounting the connecting bracket (5) is provided in the swing mechanism (2); The swing mechanism (2) comprises a swing motor (2-3), a swing lead screw (2-4) and a swing slider (2-5); the swing lead screw (2-4) is connected to the swing motor (2-3); the swing slider (2-5) is connected to the swing lead screw (2-4); the swing slider (2-5) is mounted on a connecting bracket (5); the swing motor (2-3) drives the connecting bracket (5) to move, thereby driving the sprinkler head (1) to swing; The spray base (3) is provided with a liquid inlet cavity (3-1) and a telescopic tube (3-2), the telescopic tube (3-2) is slidably connected to the liquid inlet cavity (3-1), one end of the telescopic tube (3-2) extends into the liquid inlet cavity (3-1), the other end of the telescopic tube (3-2) is connected to the spray head (1), and a first sealing member is provided at the connection between the telescopic tube (3-2) and the liquid inlet cavity (3-1); A telescopic cavity (3-3) is also provided in the spray base (3), the telescopic tube (3-2) is slidably mounted in the telescopic cavity (3-3), and a second sealing member is provided at the connection between the telescopic cavity (3-3) and the telescopic tube (3-2); A pipe passage (3-14) is provided between the telescopic chamber (3-3) and the liquid inlet chamber (3-1), a telescopic tube (3-2) is slidably installed in the pipe passage, one end of the telescopic tube (3-2) extends into the liquid inlet chamber (3-1), and the other end of the telescopic tube (3-2) is connected to the spray head (1); The first sealing member and the second sealing member have the same structure, and both comprise a sealing spring (3-4) and a sealing ring (3-5); the sealing spring (3-4) is sleeved on the outside of the telescopic tube (3-2) and abuts against the sealing ring (3-5), so that the sealing ring (3-5) abuts against the connection between the telescopic tube (3-2) and the liquid inlet chamber (3-1) or the connection between the telescopic chamber (3-3) and the telescopic tube (3-2); An inclined surface (3-16) is provided on the sealing ring (3-5), and the sealing spring (3-4) abuts against the inclined surface (3-16).

2. A spray device for precision machining according to claim 1, characterized in that: An opening slot (2-2) is provided on one side of the installation cavity (2-1), and the shower head (1) extends out of the installation cavity (2-1) through the opening slot (2-2).

3. The spray device for precision machining according to claim 1, characterized in that: The shower head (1) is provided with a connecting shaft (1-1), the connecting bracket (5) is provided with a connecting groove (5-1) for mounting the connecting shaft (1-1), a connecting ring (5-2) is provided in the connecting groove (5-1), and the connecting shaft (1-1) is connected to the connecting ring (5-2).

4. A spray device for precision machining according to claim 1, characterized in that: The swing mechanism (2) further comprises a sliding seat (2-6) and a swing end cover (2-7) mounted on the sliding seat (2-6); the sliding seat (2-6) is slidably mounted on the spray base (3); a swing cavity (2-8) is provided in the sliding seat (2-6); the spray head (1) is mounted in the swing cavity (2-8) via the swing end cover (2-7); and the mounting cavity (2-1) is arranged on the swing end cover (2-7).

5. A spray device for precision machining according to claim 4, characterized in that: The spray head (1) comprises a spray pipe (1-2) and a ball head (1-3); the spray pipe (1-2) is mounted on the ball head (1-3); and the ball head (1-3) is rotatably mounted in a swing chamber (2-8).

6. The spray device for precision machining according to claim 1, characterized in that: The nozzle driving mechanism (4) comprises a translation motor (4-1), a driving gear (4-2) and a rack (4-3); the driving gear (4-2) is mounted on the translation motor (4-1), the rack (4-3) is fixed on the swing mechanism (2), and the driving gear (4-2) is meshed with the rack (4-3) so as to drive the swing mechanism (2) to translate via the translation motor (4-1).

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