Piston roughing equipment

Abstract

The utility model discloses a piston roughing device which comprises a machine body and further comprises a piston blank, the output end of the drilling power head is fixedly connected with a drill bit; the output end of the milling power head is fixedly connected with a milling cutter; the sliding plate is arranged in the machine body in a front-back sliding manner; the sliding plate is arranged in the machine body in a front-back moving mode through the moving assembly. Wherein the drilling power head and the milling power head are a set of machining assemblies, the number of the machining assemblies is two, the two machining assemblies are arranged in the machine body in a bilateral symmetry mode with the sliding plate as the center, and through the arrangement of the two machining assemblies, rough pin hole drilling and notch milling can be conveniently conducted on the two sides of a piston blank at the same time in one-time clamping; and repeated clamping is not needed, the production efficiency is improved, and meanwhile the yield is increased by machining through one-time clamping.

Description

Technical Field

[0001] The utility model belongs to the technical field of piston processing, and particularly relates to a roughing device for pistons. Background Art

[0002] The application of lightweight and high-strength forged pistons in the engine field is becoming increasingly widespread, and the various performances of forged pistons have been recognized and favored by more and more technicians and experts.

[0003] One end of the piston is a flower surface with several inner cavities. After the forged piston is extruded and formed, it is also necessary to rough drill the pin holes on both sides of the flower surface of the piston and mill the notches beside the pin holes. After the processing of one side of the flower surface of the piston is completed, it is necessary to re-clamp and adjust the position of the piston and then process the other side of the flower surface of the piston, resulting in a relatively large number of overall processes. Summary of the Invention

[0004] To solve the above technical problems, the utility model provides the following technical solutions. A roughing device for pistons includes a machine body, and is characterized by further including:

[0005] A piston blank;

[0006] A drilling power head, the output end of which is fixedly connected with a drill bit;

[0007] A milling power head, the output end of which is fixedly connected with a milling cutter;

[0008] A sliding plate, which is slidably arranged back and forth in the machine body;

[0009] A moving component, the sliding plate is movably arranged back and forth in the machine body through the moving component;

[0010] A sliding component, the drilling power head and the milling power head are movably arranged left and right in the machine body through the sliding component;

[0011] A clamping component, the piston blank is fixed on the sliding plate through the clamping component;

[0012] Wherein, the drilling power head and the milling power head are a set of processing components, and there are two sets of processing components, which are symmetrically arranged left and right in the machine body with the sliding plate as the center.

[0013] Further, the clamping component includes:

[0014] A first column, which is fixedly arranged on the sliding plate;

[0015] A second column, which is fixedly arranged on the sliding plate and has several;

[0016] A pressing component, which is used for pressing the piston blank;

[0017] Wherein, one end of the piston blank is a flat surface, and the other end of the piston blank has a first inner cavity formed by forging and a contact surface. The first upright post is matched with the first inner cavity, and the upper ends of several second upright posts are in contact with the contact surface.

[0018] Furthermore, it further includes:

[0019] A height increasing platform for lifting the height of the piston blank;

[0020] Wherein, the height increasing platform is fixedly arranged at the upper end of the sliding plate, and the first upright post and the second upright posts are all fixedly arranged at the upper end of the height increasing platform.

[0021] Furthermore, it further includes:

[0022] An avoidance groove which is horizontally penetrated through the first upright post;

[0023] Wherein, the size of the avoidance groove is larger than the size of the drill bit, and several second upright posts are staggered with the avoidance groove in the Y direction.

[0024] Furthermore, the pressing component includes:

[0025] A bracket which is fixedly arranged on the sliding plate;

[0026] A cylinder which is fixedly arranged on the bracket, and the output rod end of the cylinder is fixedly connected with a pressing column;

[0027] Wherein, the pressing column of the cylinder faces the first upright post and the second upright posts.

[0028] Furthermore, the moving component includes:

[0029] A first sliding table which is fixedly arranged in the machine body and is used for driving the sliding plate to move back and forth;

[0030] Wherein, the first sliding table is an electric sliding table, and the sliding plate is fixedly connected with the slider inside the first sliding table.

[0031] Furthermore, the sliding component includes:

[0032] A second sliding table which is fixedly arranged in the machine body;

[0033] Wherein, there are two second sliding tables, the lower ends of the drilling power head and the milling power head are respectively fixedly connected with the sliders of the two second sliding tables, and the second sliding table is also an electric sliding table.

[0034] The beneficial effects of the present utility model are as follows:

[0035] 1. By setting two sets of processing components, it is convenient to simultaneously rough drill the pin holes and mill the notches on both sides of the piston blank during one-time clamping, eliminating the need for repeated clamping, improving production efficiency, and increasing the yield rate as processing is carried out with one-time clamping.

[0036] 2. By setting the first column and the second column to match the first inner cavity and the contact surface of the piston blank, precise positioning and stable fixation of the piston blank during the rough drilling of the pin holes can be ensured. Since hole processing is required at specific positions, the first column and the second column can accurately position the piston at the correct processing position.

[0037] 3. By setting the raised platform, the position of the piston blank can be lifted, facilitating the surface of the piston blank to be at a suitable processing position and corresponding to the processing components, ensuring that the drill bit and milling cutter for processing can accurately contact the surface of the piston blank. At the same time, since the height of the workbench of the machine body usually cannot be adjusted, the raised platform becomes an effective means to adjust the height of the piston blank, avoiding interference between the power head and the machine body.

[0038] 4. By setting the avoidance groove, when rough drilling the pin holes of the piston blank, interference between the drill bit of the drilling power head and the first column and the second column can be avoided.

[0039] 5. By using a cylinder for clamping, quick clamping is facilitated. Since the cylinder can provide precise force control, accurate positioning and repeatability of the workpiece during clamping can be ensured, thereby guaranteeing the accuracy and consistency of processing. At the same time, the cylinder has a fast response speed, can quickly achieve clamping and releasing operations, saving clamping time, improving production efficiency, reducing human operation intervention, lowering the risk of operation errors and poor clamping, and enhancing the reliability and safety of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG Figure 1 is a structural diagram of the present utility model;

[0041] FIG Figure 2 is a structural diagram inside the machine body;

[0042] FIG Figure 3 is for FIG Figure 2 a top view;

[0043] FIG Figure 4 is a structural diagram of the sliding plate;

[0044] FIG Figure 5 is for FIG Figure 4 an enlarged schematic diagram of A in FIG

[0045] FIG Figure 6 is for FIG Figure 4 a side view;

[0046] Attached Figure 7 is a structural diagram of one end of the piston blank having a first inner cavity;

[0047] Attached Figure 8 is a structural diagram of the sliding plate when the piston blank is clamped by the clamping assembly;

[0048] Explanation of reference numerals: 1. Body, 2. Piston blank, 3. Drilling power head, 4. Drill bit, 5. Milling power head, 6. Milling cutter, 7. Sliding plate, 8. First column, 9. Second column, 10. First inner cavity, 11. Contact surface, 12. Raised platform, 13. Avoidance groove, 14. Bracket, 15. Cylinder, 16. Pressing column, 17. First sliding table, 18. Second sliding table, 19. Roughing pin hole, 20. Roughing notch, 21. Workbench, 22. Control computer. Detailed implementation manners

[0049] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application. In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing specific implementation manners and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Embodiment 1

[0050] This embodiment provides a piston roughing device, including a body 1, and is characterized in that it further includes:

[0051] A piston blank 2;

[0052] A drilling power head 3, the output end of which is fixedly connected with a drill bit 4;

[0053] A milling power head 5, the output end of which is fixedly connected with a milling cutter 6;

[0054] A sliding plate 7, which is slidably arranged back and forth in the body 1;

[0055] A moving component, the sliding plate 7 is arranged to move back and forth in the machine body 1 through the moving component;

[0056] A sliding component, the drilling power head 3 and the milling power head 5 are arranged to move left and right in the machine body 1 through the sliding component;

[0057] A clamping component, the piston blank 2 is fixed on the sliding plate 7 through the clamping component;

[0058] Wherein, the drilling power head 3 and the milling power head 5 are a set of processing components, there are two sets of the processing components, and the two sets of processing components are symmetrically arranged left and right centered on the sliding plate 7 in the machine body 1. There is a workbench 21 inside the machine body 1, and the piston blank 2, the processing components, the sliding plate 7, the moving component, and the sliding component are all located on the workbench 21.

[0059] In this technical solution, the drilling power head 3 and the milling power head 5 (the working principles of the milling power head 5 and the drilling power head 3 are prior arts and will not be elaborated here too much) are arranged at intervals front and back. The drilling power head 3 is located on the front side of the milling power head 5. The sliding plate 7 drives the piston blank 2 to move back and forth, so that the piston blank 2 corresponds to the drilling power head 3 or the milling power head 5. The drilling power heads 3 of the two sets of processing components are correspondingly arranged, and the milling power heads 5 of the two sets of processing components are correspondingly arranged;

[0060] When rough machining of the piston blank 2 is required, the piston is fixed on the sliding plate 7 through the clamping component. The clamping component can be a tooling fixture matching the piston and will not block both sides of the piston after clamping. Then, the moving component drives the sliding plate 7 to move back and forth, and the sliding plate 7 can drive the piston blank 2 to move back and forth;

[0061] After the piston blank 2 is fixedly arranged on the sliding plate 7, the moving component drives the sliding plate 7 to drive the piston blank 2 to move back and forth. After moving to the position where the piston blank 2 corresponds to the drilling power heads 3 of the two sets of processing components, the left side of the piston blank 2 corresponds to the drilling power head 3 of one set of processing components, and the right side of the piston blank 2 corresponds to the drilling power head 3 of the other set of processing components;

[0062] At this time, the drilling power heads 3 of the two sets of processing components can be started to drive the drill bits 4 of the drilling power heads 3 to rotate. Then, through the sliding component, the drilling power heads 3 of the two sets of processing components are driven to approach each other, that is, the drill bits 4 of the drilling power heads 3 of the two sets of processing components are driven to approach the left and right sides of the piston blank respectively, so as to rough drill pin holes on both sides of the piston blank 2 through the rotating drill bits 4;

[0063] After the rough drilling of the pin holes is completed, the drilling power heads 3 of the two sets of processing components are driven to move away from each other through the sliding assembly, that is, the drills 4 of the drilling power heads 3 of the two sets of processing components are separated from the piston blank, and at the same time, the rough-machined pin holes 19 are drilled on both sides of the piston blank 2.

[0064] After the rough-machined pin holes 19 are drilled on both sides of the piston blank 2, a roughing notch 20 needs to be milled in the rough-machined pin holes 19 on both sides of the piston blank 2;

[0065] At this time, the moving assembly drives the sliding plate 7 to drive the piston blank 2 to continue moving backward, so that the position of the piston blank 2 corresponds to the milling power heads 5 of the two sets of processing components, and the position of the sliding plate 7 is finely adjusted through the moving assembly, so that the positions on both sides of the piston blank 2 where the notches need to be milled correspond to the milling power heads 5 of the two sets of processing components;

[0066] Then, the milling power heads 5 of the two sets of processing components can be started, driving the milling cutters 6 of the milling power heads 5 of the two sets of processing components to rotate, and then through the sliding assembly, driving the milling power heads 5 of the two sets of processing components to move closer to each other, that is, driving the milling cutters 6 of the milling power heads 5 of the two sets of processing components to approach the two sides of the piston blank 2 respectively, so as to mill the roughing notch 20 in the rough-machined pin hole 19 of the piston blank 2 through the rotating milling cutter 6.

[0067] Finally, the milling power heads 5 of the two sets of processing components are driven to move away from each other through the sliding assembly, which can drive the milling cutter 6 away from the piston blank 2. Then, the milling power heads 5 and the drilling power heads 3 of the two sets of processing components are turned off. Then, the moving assembly drives the sliding plate 7 to drive the piston blank 2 to move forward to reset, and the clamping assembly releases the clamping of the piston blank 2, and the piston blank 2 can be taken out.

[0068] Through this structural design, by setting two sets of processing components, it is convenient to simultaneously perform rough drilling of pin holes and milling of notches on both sides of the piston blank 2 during one-time clamping, without the need for repeated clamping, improving production efficiency. At the same time, processing with one-time clamping also improves the yield rate, and at the same time reduces the number of machine tools and the floor area. Embodiment 2

[0069] This embodiment provides a piston roughing device, which, in addition to including the technical solutions of the above embodiment, also has the following technical features.

[0070] Further, the clamping assembly includes:

[0071] The first column 8, which is fixedly arranged on the sliding plate 7;

[0072] The second column 9, which is fixedly arranged on the sliding plate 7 and has several;

[0073] A pressing assembly for pressing the piston blank 2;

[0074] Wherein, one end of the piston blank 2 is a plane, and the other end of the piston blank 2 has a first inner cavity 10 formed by forging and a contact surface 11. The first upright column 8 is matched with the first inner cavity 10, and the upper ends of several second upright columns 9 are in contact with the contact surface 11.

[0075] In this technical solution, since the piston blank 2 has a first inner cavity 10 and a contact surface 11 formed by forging, a first upright column 8 and a second upright column 9 are fixedly arranged on the sliding plate 7. The first upright column 8 is matched with the first inner cavity 10, and the upper end of the second upright column 9 is in contact with the contact surface 11;

[0076] When the piston blank 2 needs to be clamped, the other end of the piston blank 2, that is, the end with the first inner cavity 10, is placed downward towards the first upright column 8 and the second upright column 9 on the sliding plate 7. When the piston blank 2 is placed on the sliding plate 7, the first upright column 8 of the sliding plate 7 is located in the first inner cavity 10 of the piston blank 2, and the upper end of the second upright column 9 will be in contact with the contact surface 11. Thus, through the cooperation of the first upright column 8 and the first inner cavity 10 and the contact of the second upright column 9 with the contact surface 11, a positioning effect on the placement of the piston blank 2 is achieved;

[0077] At this time, the end of the piston blank 2 with a plane will be upward. Then, through the pressing assembly, the plane end of the piston blank 2 is pressed. At this time, the lower end of the piston is in contact with the first upright column 8 and the second upright column 9, and the upper plane of the piston is pressed through the pressing assembly, thereby fixing the piston on the sliding plate 7.

[0078] Through this structural design, by providing the first upright column 8 and the second upright column 9 and cooperating with the first inner cavity 10 and the contact surface 11 of the piston blank 2 for positioning, accurate positioning and stable fixation of the piston blank 2 during the rough drilling of the pin hole can be ensured. Since the hole needs to be processed at a specific position, the first upright column 8 and the second upright column 9 can accurately position the piston at the correct processing position.

[0079] At the same time, the cooperation of the first upright column 8 and the second upright column 9 with the first inner cavity 10 and the contact surface 11 can ensure that the piston blank 2 does not move or shift during the processing, thereby ensuring the position accuracy of the rough drilling of the pin hole and ensuring the yield rate;

[0080] Moreover, the clamping process of the piston is simplified, and the clamping time is saved. Only need to place the end of the piston blank 2 with an inner cavity towards the first upright column 8 and the second upright column 9, and then press the upper plane of the piston through the pressing assembly. The pressing assembly can be a pressing cylinder to ensure a fast clamping effect. Embodiment 3

[0081] This embodiment provides a piston roughing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0082] Furthermore, it also includes:

[0083] A heightening platform 12, which is used to raise the height of the piston blank 2;

[0084] The heightening platform 12 is fixedly disposed on the upper end of the sliding plate 7 , and the first column 8 and the second column 9 are both fixedly disposed on the upper end of the heightening platform 12 .

[0085] In the present technical solution, a heightening platform 12 is provided, and the first column 8 and the second column 9 are fixedly provided on the upper end of the sliding plate 7 through the heightening platform 12, which raises the overall height of the first column 8 and the second column 9, so that after the piston blank 2 is placed on the first column 8 and the second column 9 for positioning, the position of the piston blank 2 in the body 1 will also be raised compared with the above embodiment;

[0086] Through this structural design, by setting up the raising platform 12, the position of the piston blank 2 can be lifted, so that the surface of the piston blank 2 is located in a suitable processing position and corresponds to the processing component, ensuring that the drill bit 4 and the milling cutter 6 used for processing can accurately contact the surface of the piston blank 2. At the same time, since the height of the workbench 21 of the machine body 1 is usually not adjustable, the raising platform 12 becomes an effective means to adjust the height of the piston blank 2, thereby avoiding interference between the power head and the machine body 1. Example 4

[0087] This embodiment provides a piston roughing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] Furthermore, it also includes:

[0089] The avoidance groove 13 is formed on the left and right sides of the first column 8;

[0090] The size of the avoidance groove 13 is larger than that of the drill bit 4 , and a plurality of second columns 9 are staggered with the avoidance groove 13 in the Y direction.

[0091] In the present technical solution, after the rough pin holes 19 are drilled out of the piston blank 2, the rough pin holes 19 on both sides of the piston blank 2 are connected to the first inner cavity 10 of the piston blank 2, and since the first column 8 is located in the first inner cavity 10, it is necessary to avoid interference between the drill bit 4 of the drilling power head 3 and the first column 8 when the rough pin holes are drilled;

[0092] Therefore, by opening the avoidance groove 13, the position of the avoidance groove 13 corresponds to the position of the rough pin hole 19 of the piston blank 2, so that after the drilling power head 3 drives the drill bit 4 to drill in, one end of the drill bit 4 will enter the avoidance groove 13 without interfering with the first column 8.

[0093] At the same time, the plurality of second columns 9 are staggered with the avoidance grooves 13 in the Y direction, so that the drilling power head 3 is prevented from interfering with the second columns 9 when roughly drilling the pin holes.

[0094] Through this structural design, by providing the avoidance groove 13 , when the piston blank 2 is roughly drilled with a pin hole, the drill bit 4 of the drilling power head 3 is prevented from interfering with the first column 8 and the second column 9 . Example 5

[0095] This embodiment provides a piston roughing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0096] Furthermore, the pressing assembly comprises:

[0097] A bracket 14, which is fixedly arranged on the sliding plate 7;

[0098] The cylinder 15 is fixedly mounted on the bracket 14, and the output rod end of the cylinder 15 is fixedly connected to a pressure column 16;

[0099] The pressure column 16 of the cylinder 15 is disposed toward the first column 8 and the second column 9 .

[0100] In the present technical solution, when the piston blank 2 needs to be clamped, after one end of the inner cavity of the piston blank 2 is placed downward on the first column 8 and the second column 9, the flat end of the piston blank 2 will be set upward, that is, the flat end of the piston blank 2 is set toward the lower end of the pressure column 16 of the cylinder 15, and then the cylinder 15 is started, and the output rod end of the cylinder 15 drives the pressure column 16 to move downward, so that the flat end of the piston blank 2 can be quickly pressed, thereby quickly clamping the piston blank 2.

[0101] Through this structural design, the cylinder 15 is used for pressing, which facilitates quick clamping. Since the cylinder 15 can provide precise force control, the precise positioning and repeatability of the workpiece during clamping can be ensured, thereby ensuring the accuracy and consistency of processing. At the same time, the cylinder 15 has a fast response speed and can quickly realize clamping and releasing operations, saving clamping time, improving production efficiency, reducing human intervention, reducing the risk of operating errors and poor clamping, and improving production reliability and safety. Example 6

[0102] This embodiment provides a roughing device for pistons. In addition to the technical solutions of the above embodiment, it also has the following technical features.

[0103] Further, the moving component includes:

[0104] The first sliding table 17 is fixedly arranged in the machine body 1 and is used to drive the sliding plate 7 to move back and forth.

[0105] Among them, the first sliding table 17 is an electric sliding table, and the sliding plate 7 is fixedly connected to the slider inside the first sliding table 17.

[0106] Through this structural design, by setting the first sliding table 17, it is convenient to drive the sliding plate 7 to move back and forth through the first sliding table 17. At the same time, the first sliding table 17 is an electric sliding table (the working principle of the electric sliding table is prior art and will not be elaborated here too much), and it can accurately control the position and speed of the piston blank 2 through electric drive, realizing high-precision positioning and movement. Embodiment 7

[0107] This embodiment provides a roughing device for pistons. In addition to the technical solutions of the above embodiment, it also has the following technical features.

[0108] Further, the sliding component includes:

[0109] The second sliding table 18 is fixedly arranged in the machine body 1;

[0110] Among them, there are two second sliding tables 18. The lower ends of the drilling power head 3 and the milling power head 5 are respectively fixedly connected to the sliders of the two second sliding tables 18, and the second sliding table 18 is also an electric sliding table.

[0111] In this technical solution, by setting the second sliding table 18, and the second sliding table 18 is also an electric sliding table, it is convenient to drive the drilling power head 3 and the milling power head 5 to move left and right, and it is convenient to drive the drilling power head 3 or the milling power head 5 to approach or move away from the piston blank 2.

[0112] At the same time, there is a control computer 22 outside the machine body 1, which has a control system built in. The first sliding table 17, the second sliding table 18, the drilling power head 3, the milling power head 5 and the cylinder 15 are all electrically connected to the control computer 22. Thus, the worker only needs to place the piston blank 2 to realize automatic clamping and processing, achieving automated operation, improving production efficiency and consistency. The electric sliding table can be controlled by programming to realize automated operation and optimization of the technological process in the production line.

[0113] In order to further improve efficiency, the step of manually placing the piston blank 2 or removing the processed piston blank 2 can be replaced by a manipulator (not shown in the figure, which is prior art and will not be elaborated here). The manipulator picks up and places the piston blank 2, further saving manpower and improving production efficiency at the same time.

[0114] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments in the specification of the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A roughing equipment for pistons, comprising a body (1), characterized in that, Further included are: A piston blank (2); A drilling power head (3), the output end of which is fixedly connected with a drill bit (4); A milling power head (5), the output end of which is fixedly connected with a milling cutter (6); A sliding plate (7), which is slidably arranged back and forth in the machine body (1); A moving component, the sliding plate (7) is movably arranged back and forth in the machine body (1) through the moving component; A sliding component, the drilling power head (3) and the milling power head (5) are movably arranged left and right in the machine body (1) through the sliding component; A clamping component, the piston blank (2) is fixed on the sliding plate (7) through the clamping component; Wherein, the drilling power head (3) and the milling power head (5) are a set of processing components, and there are two sets of the processing components, and the two sets of processing components are symmetrically arranged left and right in the machine body (1) with the sliding plate (7) as the center.

2. The roughing equipment for a piston according to claim 1, characterized in that, The clamping component includes: A first upright post (8), which is fixedly arranged on the sliding plate (7); A second upright post (9), which is fixedly arranged on the sliding plate (7) and has several; A pressing component for pressing the piston blank (2); Wherein, one end of the piston blank (2) is a plane, the other end of the piston blank (2) has a first inner cavity (10) and a contact surface (11) formed by forging, the first upright post (8) is matched with the first inner cavity (10), and the upper ends of the several second upright posts (9) are in contact with the contact surface (11).

3. The roughing equipment for a piston according to claim 2, characterized in that, Further included are: A height increasing platform (12) for lifting the height of the piston blank (2); Wherein, the height increasing platform (12) is fixedly arranged at the upper end of the sliding plate (7), and the first upright post (8) and the second upright post (9) are both fixedly arranged at the upper end of the height increasing platform (12).

4. A piston roughing device according to claim 3, characterized in that, Further included are: An avoidance groove (13) which is opened through left and right on the first upright post (8); Wherein, the size of the avoidance groove (13) is larger than the size of the drill bit (4), and the several second upright posts (9) are staggered with the avoidance groove (13) in the Y direction.

5. The roughing equipment for a piston according to claim 4, characterized in that, The pressing component includes: A bracket (14), which is fixedly arranged on the sliding plate (7); A cylinder (15), which is fixedly arranged on the bracket (14), and the output rod end of the cylinder (15) is fixedly connected with a pressing column (16); Wherein, the pressing column (16) of the cylinder (15) faces the first upright post (8) and the second upright post (9).

6. A roughing device for a piston, according to any one of claims 1-5, characterized in that, The moving component includes: A first sliding table (17), which is fixedly arranged in the machine body (1) and is used to drive the sliding plate (7) to move back and forth; Wherein, the first sliding table (17) is an electric sliding table, and the sliding plate (7) is fixedly connected with the slider inside the first sliding table (17).

7. A roughing device for a piston, according to claim 6, characterized in that, The sliding component includes: A second sliding table (18), which is fixedly arranged in the machine body (1); Wherein, there are two second sliding tables (18), the lower ends of the drilling power head (3) and the milling power head (5) are respectively fixedly connected with the sliders of the two second sliding tables (18), and the second sliding table (18) is also an electric sliding table.

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