Machine part cutting device

Abstract

The utility model relates to a mechanical part cutting device applied to the field of mechanical part machining, which comprises a cutting table, a U-shaped support plate fixedly connected to the lower end of the cutting table, an electric turntable fixedly connected to the inner bottom wall of the support plate, a positioning shaft fixedly connected to the middle of the upper end of the electric turntable, and a driving fluted disc rotatably sleeved on the outer surface of the positioning shaft. A positioning disc is fixedly connected to the upper end of the positioning shaft, four involute grooves are formed in the surface of the driving fluted disc, four limiting grooves corresponding to the four involute grooves are formed in the upper end of the positioning disc, and the driving fluted disc rotates to drive the multiple limiting assemblies to move in the direction of the mechanical part at the same time; and different positions of the surface of the machine part are extruded and limited through cooperation of a compression spring, an ejector rod and an elastic rod, so that the machine part is difficult to shake in the cutting process, and the stability of the cutting device in the using process is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutting device, in particular to a mechanical fitting cutting device applied to the field of mechanical fitting machining. BACKGROUND

[0002] Cutting processing refers to a kind of technology that workpiece is processed by cutting tool, and is commonly used in manufacturing mechanical parts.In the cutting processing, the relative movement between tool and workpiece can remove workpiece material from middle or side, thereby forming the shape and size required.

[0003] Chinese patent CN220902585U specification discloses a kind of cutting device, the cutting device provided by the utility model has the advantages that workpiece orientation is adjusted more convenient and labor-saving, work efficiency can be improved, dust pollution can be reduced and use is more convenient.

[0004] But the above-mentioned patent will appear the following problems in the process of using: when the different mechanical fittings are processed, the mechanical fittings are only clamped by screw rod and fixed plate in the above-mentioned cutting device, but since the shapes of mechanical fittings are different, fixed plate is difficult to closely adhere to the outer surface of mechanical fittings when clamping and fixing mechanical fittings, so that mechanical fittings may appear shaking condition in the process of being cut, thereby causing damage to the surface of mechanical fittings. UTILITY MODEL CONTENTS

[0005] For the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing cutting device is difficult to closely adhere to the outer surface of mechanical fittings when fixing mechanical fittings with different shapes, so that mechanical fittings are prone to shaking condition in the process of being cut, thereby causing damage to mechanical fittings.

[0006] In order to solve the above problems, the utility model provides a kind of mechanical accessory cutting device, including cutting table, the lower end of cutting table is fixedly connected with the support plate of U type, the inner bottom wall of support plate is fixedly connected with electric turntable, the upper end middle part of electric turntable is fixedly connected with positioning shaft, the outer surface of positioning shaft is rotatably provided with driving gear, the upper end of positioning shaft is fixedly connected with positioning disc, the surface of driving gear is excavated with four involutes, the upper end of positioning disc is excavated with four limit slots corresponding with four involutes respectively, and the upper end of clamping block is movably penetrated through adjacent limit slot and fixedly connected with limiting assembly, the outer surface of electric turntable is fixedly connected with locating plate, the upper end of locating plate is fixedly connected with motor one, the output end of motor one is fixedly connected with driving gear, and driving gear is engaged with driving gear, and limiting assembly includes accommodating box fixedly connected on the upper end of clamping block, a plurality of fixed rods are fixedly connected on the side of accommodating box close to positioning shaft central axis, compression spring is fixedly connected on the circular inner wall of fixed rod, the side of compression spring close to positioning shaft central axis is fixedly connected with ejector rod, the side of ejector rod away from positioning shaft central axis is fixedly connected with elastic rod, elastic rod is movably penetrated through compression spring, the upper end of cutting table is fixedly connected with the support cover of inverted U type, the upper end of support cover is excavated with accommodating slot, motor two is rotatably connected in accommodating slot, cutting head is arranged at the lower end of motor two, the upper end of support cover is rotatably connected with cylinder, and the front end of cylinder is rotatably connected with the rear end of motor two.

[0007] In the above mechanical accessory cutting device, the rotation of the driving gear can drive the multiple limiting assemblies to move towards the mechanical accessory at the same time, and then the compression spring, the ejector rod and the elastic rod cooperate to press and limit different positions on the surface of the mechanical accessory, so that the mechanical accessory is difficult to shake during cutting, thereby effectively improving the stability of the cutting device during use.

[0008] As a further improvement of the present application, the involutes are arc-shaped as a whole, and the distances between the two ends of the involutes and the positioning shaft are different.

[0009] As a further improvement of the present application, the upper end of the positioning disc is rotatably penetrated through the cutting table, and the four limit slots are arranged in a ring array around the central axis of the positioning disc.

[0010] As another improvement of the present application, the upper end of the support cover is fixedly connected with two limiting plates, the motor two is located between the two limiting plates, the surface of the limiting plate is excavated with a sliding slot, the left and right ends of the motor two are fixedly connected with a plug rod, and the end of the plug rod away from the motor two is movably penetrated through the adjacent sliding slot.

[0011] As a further improvement of the present application, the upper end of the cutting head is fixedly connected with the lower end of the motor two, the sliding slot is arc-shaped, and the center of the sliding slot is located at the connection between the motor two and the accommodating slot.

[0012] As a supplement to the improved application, the lower end of the motor two is fixedly connected with a mounting rod, the outer surface of the mounting rod is drilled with a mounting groove, the mounting block is inserted in the mounting groove, and the lower end of the mounting block is fixedly connected with the upper end of the cutting head.

[0013] In summary, in actual application, the mechanical parts are placed on the upper end of the positioning disc, the driving gear is driven to rotate by the motor one, the driving gear is rotated, under the limitation of the involute slot and the limiting slot, the clamping block moves towards the mechanical parts, the accommodating box moves towards the mechanical parts, when the jacks are attached to the surface of the mechanical parts, the compression spring is compressed in the fixed rod, the elastic rod is deformed, the plurality of jacks are limited and fixed to different positions on the surface of the mechanical parts, so that the mechanical parts are difficult to shake during cutting, thereby effectively improving the stability of the cutting device during use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the first embodiment of the application;

[0015] Figure 2 It is a front view cross-sectional structure of the first embodiment of the application;

[0016] Figure 3 It is a positioning disc structure schematic diagram of the first embodiment of the application;

[0017] Figure 4 It is a driving gear structure plan view of the first embodiment of the application;

[0018] Figure 5 It is a limiting assembly structure schematic diagram of the first embodiment of the application;

[0019] Figure 6 It is a cutting head structure schematic diagram of the first embodiment of the application;

[0020] Figure 7 It is a mounting block structure schematic diagram of the second embodiment of the application.

[0021] Explanation of reference numerals in the drawing:

[0022] 1 cutting table, 2 support plate, 3 electric rotary table, 4 positioning shaft, 5 driving gear, 6 positioning disc, 7 involute slot, 8 limiting slot, 9 clamping block, 10 accommodating box, 11 fixed rod, 12 compression spring, 13 jack, 14 elastic rod, 15 support cover, 16 motor two, 17 cutting head, 18 air cylinder, 19 motor one, 20 driving gear, 21 limiting plate, 22 sliding groove, 23 insertion rod, 24 mounting rod, 25 mounting block. DETAILED DESCRIPTION

[0023] Two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] The first embodiment is as follows:

[0025] Figure 1 、 Figure 2 and Figure 3 A mechanical fitting cutting device is shown, which comprises a cutting table 1, the lower end of the cutting table 1 is fixedly connected with a U-shaped support plate 2, the support plate 2 can support and fix the cutting table 1, thereby effectively improving the stability of the cutting table 1 during use, the inner bottom wall of the support plate 2 is fixedly connected with an electric turntable 3, a person skilled in the art can select a suitable model of the electric turntable 3 according to actual needs, for example: Y200RA, the electric turntable 3 can drive the rotation of a positioning shaft 4 and a positioning disc 6, thereby the mechanical fitting can be rotated to different positions for cutting, the upper end of the electric turntable 3 is fixedly connected with the positioning shaft 4, the outer surface of the positioning shaft 4 is rotatably sleeved with a driving gear plate 5, the upper end of the positioning shaft 4 is fixedly connected with the positioning disc 6, the surface of the driving gear plate 5 is provided with four involute grooves 7, the upper end of the positioning disc 6 is provided with four limiting grooves 8 corresponding to the four involute grooves 7 respectively, the involute grooves 7 movably penetrate the limiting grooves 8, the upper end of the clamping block 9 movably penetrates the adjacent limiting groove 8 and is fixedly connected with a limiting assembly, the outer surface of the electric turntable 3 is fixedly connected with a positioning plate, the upper end of the positioning plate is fixedly connected with a motor 1 9, a person skilled in the art can select a suitable model of the motor 1 9 according to actual needs, for example: Y2-63M1-2-0.18KW, the output end of the motor 1 9 is fixedly connected with a driving gear 20, the driving gear 20 is engaged with the driving gear plate 5, the motor 1 9 can drive the driving gear 20 to rotate, and the driving gear plate 5 engaged with the driving gear 20 also rotates, through the limitation of the involute groove 7 and the limiting groove 8, the clamping block 9 can move longitudinally.

[0026] Figure 3 、 Figure 4 and Figure 5The limiting assembly comprises a containing box 10 fixedly connected to the upper end of the clamping block 9, a plurality of fixed rods 11 fixedly connected to one side of the containing box 10 close to the central axis of the positioning shaft 4, a compression spring 12 fixedly connected to one side of the fixed rod 11 close to the central axis of the positioning shaft 4, a top rod 13 fixedly connected to one side of the compression spring 12 away from the central axis of the positioning shaft 4, an elastic rod 14 fixedly connected to one side of the top rod 13 away from the central axis of the positioning shaft 4, the elastic rod 14 movably penetrating through the compression spring 12, the involute groove 7 is arc-shaped as a whole, and the distances from the two ends of the involute groove 7 to the positioning shaft 4 are different, the upper end of the positioning disc 6 movably penetrates through the cutting table 1, the four limiting grooves 8 are arranged in an annular array around the central axis of the positioning disc 6, when the top rod 13 is in contact with the surface of the mechanical accessory, the compression spring 12 is compressed in the fixed rod 11, the elastic rod 14 is deformed, and the plurality of top rods 13 limit and fix different positions on the outer surface of the mechanical accessory, and the compression spring 12 and the elastic rod 14 can support the top rod 13, facilitating movement and resetting of the top rod 13.

[0027] Figure 1 、 Figure 2 and Figure 6 The upper end of the cutting table 1 is fixedly connected with a support cover 15 in an inverted U shape, the upper end of the support cover 15 is provided with a containing groove, and a motor two 16 is rotatably connected in the containing groove. Those skilled in the art can select a suitable model of the motor two 16 according to actual needs, for example: Y2-63M1-2-0.18KW. The lower end of the motor two 16 is provided with a cutting head 17. The motor two 16 can drive the cutting head 17 to rotate when started, facilitating cutting of the mechanical accessory. The upper end of the support cover 15 is rotatably connected with a pneumatic cylinder 18. Those skilled in the art can select a suitable model of the pneumatic cylinder 18 according to actual needs, for example: SCD50x100-100-LB. The front end of the pneumatic cylinder 18 is rotatably connected with the rear end of the motor two 16. The pneumatic cylinder 18 can drive the motor two 16 to rotate by extending and retracting, thereby facilitating the change of the angle of the cutting head 17. The upper end of the support cover 15 is fixedly connected with two limiting plates 21, and the motor two 16 is located between the two limiting plates 21. The surface of the limiting plate 21 is provided with a sliding groove 22. The left and right ends of the motor two 16 are fixedly connected with a plug rod 23. One end of the plug rod 23 away from the motor two 16 movably penetrates through the adjacent sliding groove 22. The upper end of the cutting head 17 is fixedly connected with the lower end of the motor two 16. The sliding groove 22 is arc-shaped, and the center of the sliding groove 22 is located at the connection between the motor two 16 and the containing groove. In the process of the pneumatic cylinder 18 driving the motor two 16 to rotate, the plug rod 23 simultaneously slides in the sliding groove 22, thereby effectively improving the stability of the motor two 16.

[0028] When cutting the mechanical parts, the mechanical parts are placed on the upper end of the positioning disc 6, the driving gear 20 is driven to rotate by the motor 19, so that the driving gear plate 5 rotates, under the limitation of the involute slot 7 and the limiting slot 8, the clamping block 9 moves towards the mechanical parts, when the jacks 13 are in contact with the surface of the mechanical parts, the compression spring 12 is compressed in the fixed rod 11, the elastic rod 14 is deformed, and the plurality of jacks 13 are limited and fixed to different positions of the outer surface of the mechanical parts, at this time, the motor 16 can be started to drive the cutting head 17 to rotate, so as to cut the mechanical parts, and at the same time of cutting, the motor 16 can be driven to rotate by starting the extension and contraction of the cylinder 18, so as to change the angle of the cutting head 17, and the rotation of the electric rotating disc 3 can drive the rotation of the mechanical parts, so as to cut different positions of the mechanical parts.

[0029] Second embodiment:

[0030] The embodiment adds a mounting rod 24 and a mounting block 25 based on the first embodiment, and the remaining parts remain the same as the first embodiment.

[0031] Figure 7 As shown: the lower end of the motor 16 is fixedly connected with the mounting rod 24, the outer surface of the mounting rod 24 is provided with a mounting slot, the mounting block 25 is inserted in the mounting slot, the lower end of the mounting block 25 is fixedly connected with the upper end of the cutting head 17, and the mounting rod 24 and the mounting block 25 are fixedly connected by bolts, so as to facilitate replacement of the cutting head 17.

[0032] When cutting the mechanical parts, the hardness of different mechanical parts is not the same, and different cutting heads 17 need to be used for cutting, at this time, the bolts can be unscrewed, the mounting block 25 is taken out from the mounting slot, the appropriate cutting head 17 is replaced, the mounting block 25 is inserted into the mounting slot, and the bolts are fixed, so as to facilitate the cutting of the mechanical parts by the staff.

[0033] In combination with the actual needs at present, the above-mentioned embodiments adopted by the present application are not limited to this, various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection range of the present application.

Claims

1. A mechanical fitting cutting device comprising a cutting table (1), characterized in that: The lower end of the cutting table (1) is fixedly connected with a U-shaped support plate (2), the inner bottom wall of the support plate (2) is fixedly connected with an electric turntable (3), the upper end of the electric turntable (3) is fixedly connected with a positioning shaft (4), the outer surface of the positioning shaft (4) is rotatably sleeved with a driving gear plate (5), the upper end of the positioning shaft (4) is fixedly connected with a positioning disc (6), the surface of the driving gear plate (5) is provided with four involute grooves (7), the upper end of the positioning disc (6) is provided with four limiting grooves (8) corresponding to the four involute grooves (7), respectively, the involute grooves (7) movably penetrate the clamping block (9), the upper end of the clamping block (9) movably penetrates the adjacent limiting groove (8) and is fixedly connected with a limiting assembly, the outer surface of the electric turntable (3) is fixedly connected with a positioning plate, the upper end of the positioning plate is fixedly connected with a motor (19), the output end of the motor (19) is fixedly connected with a driving gear (20), and the driving gear (20) is engaged with the driving gear plate (5). The limiting assembly comprises a containing box (10) fixedly connected to the upper end of the clamping block (9), a plurality of fixed rods (11) fixedly connected to one side of the containing box (10) close to the central axis of the positioning shaft (4), a compression spring (12) fixedly connected to the circular inner wall of the fixed rod (11), a top rod (13) fixedly connected to one side of the compression spring (12) close to the central axis of the positioning shaft (4), and a elastic rod (14) fixedly connected to one side of the top rod (13) away from the central axis of the positioning shaft (4), the elastic rod (14) movably penetrates the compression spring (12). The upper end of the cutting table (1) is fixedly connected with an inverted U-shaped support cover (15), the upper end of the support cover (15) is provided with a containing groove, the containing groove is rotatably connected with a motor (16), the lower end of the motor (16) is provided with a cutting head (17), the upper end of the support cover (15) is rotatably connected with a cylinder (18), and the front end of the cylinder (18) is rotatably connected with the rear end of the motor (16).

2. A machine tool according to claim 1, wherein: The involute grooves (7) are arc-shaped as a whole, and the distances from the two ends of the involute grooves (7) to the positioning shaft (4) are different.

3. A machine tool according to claim 1, wherein: The upper end of the positioning disc (6) rotatably penetrates the cutting table (1), and the four limiting grooves (8) are annularly arranged around the central axis of the positioning disc (6).

4. A machine tool according to claim 1, wherein: The upper end of the support cover (15) is fixedly connected with two limiting plates (21), the motor (16) is located between the two limiting plates (21), the surface of the limiting plate (21) is provided with a sliding groove (22), and the left and right ends of the motor (16) are fixedly connected with insertion rods (23), one end of the insertion rod (23) away from the motor (16) movably penetrates the adjacent sliding groove (22).

5. A machine tool according to claim 4, wherein: The upper end of the cutting head (17) is fixedly connected with the lower end of the motor (16), the sliding groove (22) is arc-shaped, and the center of the sliding groove (22) is located at the connection between the motor (16) and the containing groove.

6. A machine tool according to claim 4, wherein: The lower end of the motor two (16) is fixedly connected with a mounting rod (24), the outer surface of the mounting rod (24) is excavated with a mounting groove, the mounting block (25) is inserted in the mounting groove, the lower end of the mounting block (25) is fixedly connected with the upper end of the cutting head (17), and the mounting rod (24) and the mounting block (25) are fixedly connected through bolts.

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