Automatic screw processing machine tool

Abstract

The invention relates to the field of screw machining equipment, in particular to an automatic screw machining machine tool which comprises a mounting frame, an electric sliding block, a sliding table and the like. The sliding table is rotationally connected with an inserting barrel where a screw is inserted, a grinding mechanism is further arranged on the mounting frame, a grinding assembly of the grinding mechanism controls the inclination angle of a grinding belt through a second electric push rod, and the grinding belt can grind the top of the screw in the inserting barrel in the inclination state of different angles in cooperation with two-shaft adjustment work of the sliding table. It is guaranteed that the grinding belt can be attached to all areas of a transition arc at the top of the screw, the grinding effect of bright polishing treatment is achieved, batch grinding treatment of the screw can be achieved, and the grinding work efficiency of the screw is guaranteed; the technical problems that the contact area of a grinding belt of existing grinding equipment and a transition arc area at the top of a screw is small, and the transition arc at the top of the screw is difficult to achieve the grinding effect of bright polishing treatment are solved.

Description

Technical Field

[0001] The invention relates to the field of screw processing equipment, and in particular to an automatic screw processing machine tool. Background Art

[0002] In the automated processing steps of screws, a grinder is needed to grind the top of the screw. The screw is controlled to reciprocate under a grinding belt, and the grinding belt is used to grind and polish the top of the screw so that the top of the screw can obtain a bright polishing effect. However, this method is only suitable for grinding flat-top screws. When this method is used to grind screws with arc structures on the top, the grinding effect of the screw top is poor due to the small contact area between the grinding belt and the transition arc area of ​​the screw top. Therefore, it is difficult to obtain a bright polishing effect for the transition arc on the screw top. Summary of the invention

[0003] In order to overcome the disadvantage that the contact area between the grinding belt of the existing grinding equipment and the transition arc area on the top of the screw is small, making it difficult to obtain a bright polishing effect for the transition arc on the top of the screw, the present invention provides an automatic screw processing machine tool.

[0004] The technical implementation scheme of the present invention is as follows: an automated screw processing machine tool comprises a mounting frame, an electric slider, a sliding table, a first electric push rod, an inserting cylinder, a rotation drive assembly and a grinding mechanism; the mounting frame is slidably connected to the electric slider; the electric slider is slidably connected to the sliding table; the first electric push rod is installed on the electric slider; the telescopic end of the first electric push rod is fixedly connected to the sliding table; a plurality of inserting cylinders are rotatably connected to the sliding table, and the inserting cylinders are evenly divided into no less than two rows in the front and rear directions on the sliding table; the mounting frame is connected to a rotation drive assembly; the rotation drive assembly is connected to the inserting cylinder; the right side of the mounting frame The side is provided with grinding mechanisms of the same number as the number of insert cylinder rows; the grinding mechanism is composed of two groups of left and right grinding components; each group of grinding components includes a second electric push rod, a fixed frame, a transmission wheel, a driving motor and a grinding belt; the mounting frame is rotatably connected to the front and rear second electric push rods through a rotating shaft; the telescopic ends of the two second electric push rods are rotatably connected to the fixed frame through a rotating shaft; no less than four transmission wheels are rotatably connected to the fixed frame; a driving motor is installed on the fixed frame; the output shaft of the driving motor is fixedly connected to a transmission wheel; a grinding belt is commonly wound around all the transmission wheels.

[0005] As an improvement to the above solution, an annular groove structure is provided on the sliding platform at the periphery of the inserting tube.

[0006] As an improvement of the above solution, a transverse groove structure is provided on the sliding platform; the transverse groove is connected to adjacent annular grooves in the left and right directions.

[0007] As an improvement of the above solution, the rotary drive assembly includes a spur gear and a spur rack; the insert is fixedly connected to the spur gear; the right side of the mounting frame is fixedly connected to the spur rack, and the spur rack is aligned with the spur gear.

[0008] As an improvement of the above solution, in the same grinding mechanism, the mesh number of the grinding belt on the right grinding component is much larger than the mesh number of the grinding belt on the left grinding component.

[0009] As an improvement of the above solution, an air extraction hole structure is provided on the sliding platform; a vertical hole structure is provided on the sliding platform; and the vertical hole is connected to the air extraction hole.

[0010] As an improvement of the above solution, the upper end of the vertical hole is located in the annular groove.

[0011] As an improvement of the above solution, a brush is fixedly connected to the inserting tube; the bristles of the brush are closely attached to the inner bottom of the annular groove.

[0012] As an improvement of the above solution, the fixed frame is slidably connected to the lifting frame; a third electric push rod is installed on the fixed frame; the telescopic end of the third electric push rod is fixedly connected to the corresponding lifting frame; and a plurality of pressing wheels are rotatably connected to the lifting frame.

[0013] As an improvement of the above solution, a rubber sleeve is fixedly connected in the insert sleeve.

[0014] Beneficial effects: The present invention describes an automated screw processing machine tool, wherein a sliding table which can be adjusted in two axes is provided on a mounting frame through an electric slider, and an insert cylinder connected with a screw is rotatably mounted on the sliding table, and a grinding mechanism is also provided on the mounting frame, and a grinding assembly of the grinding mechanism controls the inclination angle of the grinding belt through a second electric push rod, and cooperates with the two-axis adjustment work of the sliding table, so that the grinding belt can grind the top of the screw in the insert cylinder at different inclination angles. In addition, a pressing wheel is provided, and the lifting and lowering of the pressing wheel is controlled by a third electric push rod, so that the pressing wheel folds the lower edge of the grinding belt downward, ensuring that the grinding belt can fit various areas of the transition arc at the top of the screw to obtain a bright polishing effect, and batch grinding of the screws can be realized to ensure the grinding efficiency of the screws; the technical problem that the contact area between the grinding belt of the existing grinding equipment and the transition arc area at the top of the screw is small, and it is difficult to obtain a bright polishing effect for the transition arc at the top of the screw is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a three-dimensional structure of the present invention is described according to an embodiment; Figure 2 A schematic diagram of the three-dimensional structure of the mounting frame and the rotary drive assembly of the present invention is described according to an embodiment; Figure 3 A schematic diagram of a partial three-dimensional structure of a sliding platform of the present invention is described according to an embodiment; Figure 4 A schematic diagram of the three-dimensional structure of the insert sleeve of the present invention is described according to an embodiment; Figure 5 A schematic diagram of the three-dimensional structure of the grinding belt of the present invention is described according to an embodiment; Figure 6 A schematic diagram of a three-dimensional structure of a fixed frame, a transmission wheel and a driving motor assembly according to an embodiment of the present invention is described; Figure 7 A schematic diagram of the three-dimensional structure of the grinding belt, the fixing frame, the transmission wheel, the driving motor, the lifting frame, the third electric push rod and the edge pressing wheel combination of the present invention is described according to an embodiment; Figure 8 The present invention is described in detail in accordance with an embodiment of the present invention.

[0016] The reference numbers in the figure are as follows: 1-mounting frame, 21-electric slider, 22-sliding table, 2201-annular groove, 2202-horizontal groove, 2203-exhaust hole, 2204-vertical hole, 23-first electric push rod, 3-insertion cylinder, 31-spur gear, 32-spur rack, 33-brush, 34-rubber sleeve, 41-second electric push rod, 42-fixed frame, 43-transmission wheel, 44-driving motor, 5-grinding belt, 61-lifting frame, 62-third electric push rod, 63-pressing wheel. DETAILED DESCRIPTION

[0017] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments. Example 1

[0018] An automated screw processing machine tool, such as Figure 1-Figure 6As shown, it includes a mounting frame 1, an electric slider 21, a sliding table 22, a first electric push rod 23, an insert cylinder 3, a rotation drive assembly and a grinding mechanism; the mounting frame 1 is slidably connected to the electric slider 21; the electric slider 21 is slidably connected to the sliding table 22; two first electric push rods 23 are installed on the electric slider 21; the telescopic ends of the two first electric push rods 23 are fixedly connected to the sliding table 22; a number of insert cylinders 3 distributed in a matrix are rotatably connected to the sliding table 22, and the insert cylinders 3 are evenly divided into two rows in the front and back directions on the sliding table 22; the mounting frame 1 is connected to a rotation drive assembly; the rotation drive assembly is connected to the insert cylinder 3; the right side of the mounting frame 1 is provided with the same number of grinding mechanisms as the number of columns of the insert cylinder 3, and each grinding mechanism is aligned with the insert cylinder 3 in the same row in the left and right directions; each grinding mechanism The grinding mechanism is composed of two groups of left and right grinding components; each group of grinding components includes a second electric push rod 41, a fixed frame 42, a transmission wheel 43, a driving motor 44 and a grinding belt 5; the mounting frame 1 is rotatably connected to the front and rear second electric push rods 41 through a rotating shaft; the telescopic ends of the two second electric push rods 41 are rotatably connected to the fixed frame 42 through a rotating shaft; four transmission wheels 43 are rotatably connected to the fixed frame 42; a driving motor 44 is installed on the fixed frame 42; the output shaft of the driving motor 44 is fixedly connected to any transmission wheel 43 on the upper side of the fixed frame 42; a grinding belt 5 is commonly wound around all the transmission wheels 43; in the same grinding mechanism, the mesh number of the grinding belt 5 on the right grinding component is much larger than the mesh number of the grinding belt 5 on the left grinding component.

[0019] like Figure 3 As shown, at the periphery of each insert cylinder 3, an annular groove 2201 structure is respectively provided on the upper surface of the sliding table 22; four transverse grooves 2202 structures are provided on the sliding table 22; each transverse groove 2202 is respectively connected to the adjacent annular grooves 2201 in the left and right directions, and the annular grooves 2201 and the transverse grooves 2202 together constitute the avoidance groove structure on the sliding table 22. When the grinding belt 5 is in an inclined state and is grinding the screw downward, the inclined grinding belt 5 can directly enter the avoidance groove structure of the sliding table 22, so as to prevent the high-speed running grinding belt 5 from contacting the surface of the sliding table 22 in an inclined state, resulting in unnecessary wear of the sliding table 22 and the grinding belt 5.

[0020] like Figure 2 and Figure 4 As shown, the rotary drive assembly includes a spur gear 31 and a spur rack 32; a spur gear 31 is fixedly connected to the lower end of each insert 3; two spur racks 32 are fixedly connected to the right side of the mounting frame 1, and the spur racks 32 are respectively aligned with the spur gears 31 on the same side.

[0021] The automatic screw processing machine tool of the present invention has the following working steps for use.

[0022] The staff manually or controls the external unloading structure to insert the screws into each insert cylinder 3 in the sliding table 22 respectively, and then the electric slider 21 drives each screw on the sliding table 22 to move to the right, and the electric slider 21 drives each screw on the sliding table 22 to reciprocate left and right under the grinding belt 5. In the process that the sliding table 22 drives the insert cylinder 3 to reciprocate left and right through the spur rack 32, the spur rack 32 meshes with the spur gear 31 to continuously drive the insert cylinder 3 and the screw connected to it to rotate, and at the same time, the driving motor 44 drives the transmission wheel 43 to rotate, and the transmission wheel 43 drives the grinding belt 5 to run at high speed, and the second electric push rod 41 on the left grinding assembly pushes the fixed frame 42 to drive the same group of grinding belts 5 to move downward, and the grinding belt 5 is run at a high speed to grind the top of the screw that reciprocates below, and when the grinding belt 5 grinds the top of the screw, the screw is rotated to ensure the grinding effect of the screw.

[0023] When the grinding belt 5 is grinding the top of the screw, the second electric push rod 41 on the front side slowly pushes the fixing frame 42 downwards through the telescopic end, and at the same time, the second electric push rod 41 on the rear side slowly pulls the fixing frame 42 upwards through the telescopic end, so that the fixing frame 42 drives the grinding belt 5 to slowly tilt, and the inclination angle of the fixing frame 42 and the grinding belt 5 slowly increases gradually. At the same time, the first electric push rod 23 slowly pushes the sliding table 22 to move backward along the electric slider 21, so that the sliding table 22 drives the screw to move slowly backward, so that the grinding belt 5 continuously adheres to various positions of the transition arc at the top of the screw at different inclination angles, and grinds the top of the screw, so that each area of ​​the top of the screw can evenly obtain the polishing effect of bright polishing, and can realize batch polishing of the screws, thereby ensuring the efficiency of the screw polishing work.

[0024] Finally, the second electric push rod 41 on the left grinding assembly pulls the fixed frame 42 to drive the grinding belt 5 of the same group to reset upward, and the second electric push rod 41 on the right grinding assembly pushes the fixed frame 42 to drive the grinding belt 5 of the same group to move downward. Since the mesh number of the grinding belt 5 on the right grinding assembly is much larger than the mesh number of the grinding belt 5 on the left grinding assembly, the right grinding assembly then performs more fine grinding on the transition arc area on the top of the screw according to the above steps, which can improve the grinding effect of the bright polishing treatment on the top of the screw.

[0025] like Figure 4 As shown, a circle of rubber sleeve 34 is fixedly connected to the inner wall of each insert tube 3. After the screw is inserted into the rubber sleeve 34 in the insert tube 3, the insertion tightness of the screw inside the insert tube 3 is effectively improved, and the rubber sleeve 34 can well absorb the vibration generated by the grinding belt 5 when grinding the screw, thereby reducing the friction damage caused by the vibration of the screw and the inner wall of the insert tube 3.

[0026] like Figure 3As shown, four air extraction holes 2203 are provided on the sliding table 22; all the air extraction holes 2203 are connected to an external suction device; a plurality of vertical holes 2204 extending upward are provided on the sliding table 22; each vertical hole 2204 is respectively connected to a corresponding air extraction hole 2203; the upper end of each vertical hole 2204 is respectively located in each annular groove 2201; three brushes 33 are respectively fixed to each insert 3; the bristles of each brush 33 are respectively pressed against the inner bottom of the corresponding annular groove 2201.

[0027] The external suction device performs vacuum work on the corresponding vertical holes 2204 through each vacuum hole 2203. After the debris generated by the grinding belt 5 during the grinding of the screw falls into the annular groove 2201, the insert cylinder 3 in the reciprocating rotation process continuously drives the brush 33 to clean the inner bottom of the annular groove 2201, so that the brush 33 sweeps the debris into the adjacent vertical hole 2204, so that the debris is sucked away by the external suction device through the vertical hole 2204 during the vacuum work, thereby avoiding the accumulation of a large amount of debris in the annular groove 2201, resulting in the subsequent high-speed running grinding belt 5 contacting the debris during the tilting process, and a large amount of debris in the annular groove 2201 is flushed to the surroundings and scratching the top surface of the screw. Example 2

[0028] On the basis of Example 1, Figure 1-Figure 8 As shown, in this embodiment, each fixed frame 42 is slidably connected to a lifting frame 61; each fixed frame 42 is installed with a third electric push rod 62; the telescopic end of each third electric push rod 62 is respectively fixed to the corresponding lifting frame 61; each lifting frame 61 is rotatably connected to a plurality of pressing wheels 63, and the pressing wheels 63 are aligned with the outer edges on the same side of adjacent grinding belts 5.

[0029] When the curvature of the transition arc at the top of the screw is too large, making it difficult to directly tilt the grinding belt 5 to contact the arc edge at the top of the screw, the third electric push rod 62 is required to push the lifting frame 61 to drive the pressing wheel 63 to move downward, and all the pressing wheels 63 on the downward moving lifting frame 61 jointly fold the lower edge of the high-speed running grinding belt 5 downward. At the same time, the second electric push rod 41 in the same group pushes the fixed frame 42 to drive the pressing wheel 63 and the grinding belt 5 to move downward until the lower edge of the grinding belt 5 is directly pressed against the arc edge at the top of the screw by the downward folded part of the pressing wheel 63 for grinding, thereby improving the fitting effect and the corresponding grinding effect on the arc edge at the top of the screw.

[0030] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. An automated screw processing machine tool, comprising: a mounting frame (1); an electric slider (21) slidably connected to the mounting frame (1); Its characteristics are: It also includes an electric slider (21), a sliding table (22), a first electric push rod (23), an insert cylinder (3), a rotation drive assembly and a grinding mechanism; the electric slider (21) is slidably connected to the sliding table (22); the first electric push rod (23) is mounted on the electric slider (21); the telescopic end of the first electric push rod (23) is fixedly connected to the sliding table (22); a plurality of insert cylinders (3) are rotatably connected to the sliding table (22), and the insert cylinders (3) are evenly divided into no less than two rows in the front-to-back direction on the sliding table (22); the mounting frame (1) is connected to the rotation drive assembly; the rotation drive assembly is connected to the insert cylinders (3); the right side of the mounting frame (1) is provided with grinding mechanisms in the same number as the number of rows of the insert cylinders (3); The grinding mechanism is composed of two groups of grinding components on the left and right; each group of grinding components comprises a second electric push rod (41), a fixing frame (42), a transmission wheel (43), a driving motor (44) and a grinding belt (5); the mounting frame (1) is rotatably connected to two front and rear second electric push rods (41) via rotating shafts; the telescopic ends of the two second electric push rods (41) are rotatably connected to the fixing frame (42) via rotating shafts; the fixing frame (42) is rotatably connected to no less than four transmission wheels (43); the fixing frame (42) is mounted with a driving motor (44); the output shaft of the driving motor (44) is fixedly connected to a transmission wheel (43); and a grinding belt (5) is commonly wound around all the transmission wheels (43).

2. An automated screw processing machine tool according to claim 1, characterized in that: An annular groove (2201) structure is provided on the sliding platform (22) at the periphery of the inserting tube (3).

3. An automated screw processing machine tool according to claim 2, characterized in that: A transverse groove (2202) structure is provided on the sliding platform (22); the transverse groove (2202) is connected to adjacent annular grooves (2201) in the left-right direction.

4. An automated screw processing machine tool according to claim 1, characterized in that: The rotary drive assembly comprises a spur gear (31) and a spur rack (32); the insert cylinder (3) is fixedly connected to the spur gear (31); the right side of the mounting frame (1) is fixedly connected to the spur rack (32), and the spur rack (32) is aligned with the spur gear (31).

5. An automated screw processing machine tool according to claim 1, characterized in that: In the same grinding mechanism, the mesh number of the grinding belt (5) on the right grinding component is much larger than the mesh number of the grinding belt (5) on the left grinding component.

6. An automated screw processing machine tool according to claim 2, characterized in that: An air extraction hole (2203) structure is provided on the sliding platform (22); a vertical hole (2204) structure is provided on the sliding platform (22); and the vertical hole (2204) is connected to the air extraction hole (2203).

7. An automated screw processing machine tool according to claim 6, characterized in that: The upper end of the vertical hole (2204) is located in the annular groove (2201).

8. An automated screw processing machine tool according to claim 7, characterized in that: A brush (33) is fixedly connected to the inserting tube (3); the bristles of the brush (33) are in close contact with the inner bottom of the annular groove (2201).

9. An automated screw processing machine tool according to claim 1, characterized in that: The fixed frame (42) is slidably connected to a lifting frame (61); a third electric push rod (62) is mounted on the fixed frame (42); a telescopic end of the third electric push rod (62) is fixedly connected to the corresponding lifting frame (61); and a plurality of edge pressing wheels (63) are rotatably connected to the lifting frame (61).

10. An automated screw processing machine tool according to any one of claims 1 to 9, characterized in that: A rubber sleeve (34) is fixedly connected inside the inserting tube (3).

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