Drilling and tapping device for crankshaft machining

Abstract

The utility model discloses a drilling and tapping device for crankshaft machining, and relates to the technical field of crankshaft machining. Comprising a rack, a numerical control panel and a drilling mechanism are installed on a table top of the rack, the drilling mechanism is electrically connected with the numerical control panel, and the drilling mechanism comprises a portal frame, X-axis linear modules, Z-axis linear modules, a hollow rotating table, a base plate and a spindle box assembly; the Z-axis linear module is installed on the sliding table of the X-axis linear module. According to the drilling and tapping device for crankshaft machining, the double-station design is adopted, a crankshaft is fixed to a table top through a clamping tool, X-axis linear modules at the two ends are controlled to drive spindle box assemblies below to move to drilling point positions at the two ends of the crankshaft respectively, the position of a drill bit is adjusted, and the drill bit corresponds to the drilling point positions; and then the two ends of the main journal of the crankshaft are drilled at the same time through a drill bit, and the coaxiality and the drilling depth can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing, in particular to a drilling and tapping device for crankshaft processing. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, causing the crankshaft to be subjected to bending and torsional loads.

[0003] During the production and processing of crankshafts, it is necessary to drill holes in the main journal of the crankshaft to facilitate subsequent connection. Existing drilling devices mostly perform single-hole processing, that is, after processing one end of the main journal of the crankshaft, the operator rotates the crankshaft 180 degrees to fix it, and then processes the other end. This results in low coaxiality of the holes processed at both ends. In addition, since multiple electric drills are required when drilling the crankshaft, the crankshaft needs to be transferred to other equipment for processing, which is time-consuming. Utility Model Content

[0004] The utility model provides a drilling and tapping device for crankshaft processing, so as to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drilling and tapping device for crankshaft processing, comprising a frame, a numerical control panel and a drilling mechanism are respectively installed on the table of the frame, and the drilling mechanism is electrically connected to the numerical control panel; the drilling mechanism comprises a gantry, an X-axis linear module, a Z-axis linear module, a hollow rotary table, a seat plate and a spindle box assembly, the X-axis linear module is installed at the left and right ends of the gantry, the Z-axis linear module is installed on the slide of the X-axis linear module, and the hollow rotary table is installed on the Z-axis On the slide of the linear module, the base plate is installed on the turntable of the hollow rotary table, and the spindle box assembly is installed on the base plate; the spindle box assembly includes a box body, a motor, a driving shaft, a drill chuck, a drill bit and a tap, the motor is fixed to the top of the box body, the driving shaft is installed in the box body through a bearing, and one end of the driving shaft is fixedly connected to the output shaft end of the motor, the drill chuck is installed at both ends of the inner body of the box body through bearings, and the drill chuck is connected to the driving shaft through gears, and the drill bit and tap are respectively locked on the drill chuck.

[0006] Furthermore, a chip removal opening is provided on the table top of the frame, and the chip removal opening is located at both ends of the table top of the frame.

[0007] Furthermore, a chip collecting bucket is installed at the bottom of the frame table, and the chip collecting bucket is located below the chip discharge port, and an outlet is provided at the bottom of the chip collecting bucket.

[0008] Furthermore, a chip collecting frame is placed on the lower crossbeam of the frame, and the chip collecting frame is located below the outlet.

[0009] Furthermore, the X-axis linear modules are symmetrically arranged on the gantry, and the spindle box assemblies at both ends of the gantry are of the same height.

[0010] Furthermore, the drill chucks are symmetrically arranged at both ends of the box, and the clamping portion of the drill chuck is located outside the box.

[0011] Compared with the prior art, the present invention provides a drilling and tapping device for crankshaft machining, which has the following beneficial effects:

[0012] 1. The drilling and tapping device for crankshaft processing adopts a double-station design. The crankshaft is fixed on the table by a clamping fixture. The X-axis linear modules at both ends are controlled to drive the main spindle box assembly below to move to the drilling points at both ends of the crankshaft, and the position of the drill bit is adjusted to make it correspond to the drilling points. Then, the drill bit is used to drill both ends of the crankshaft main journal at the same time to ensure coaxiality and drilling depth.

[0013] 2. The drilling and tapping device for crankshaft processing, after drilling is completed, the drill bit rises and resets. At this time, the spindle box assembly is rotated to 180 degrees through the hollow rotary table, the positions of the drill bit and tap are switched, and then the tapping operation is carried out. Different crankshaft processing needs can be completed in one device, reducing the time required for equipment replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the drilling mechanism of the present utility model;

[0016] Figure 3 This is a structural diagram of the spindle box assembly of the present utility model.

[0017] In the figure: 1. Frame; 11. Chip discharge port; 12. Chip collection bucket; 13. Exit; 2. CNC panel; 3. Drilling mechanism; 31. Gantry; 32. X-axis linear module; 33. Z-axis linear module; 34. Hollow rotary table; 35. Base plate; 36. Spindle box assembly; 3601. Box; 3602. Motor; 3603. Drive shaft; 3604. Drill chuck; 3605. Drill bit; 3606. Tap; 4. Chip collection frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 The utility model discloses a drilling and tapping device for crankshaft processing, comprising a frame 1, a numerical control panel 2 and a drilling mechanism 3 are respectively installed on the table of the frame 1, and the drilling mechanism 3 is electrically connected to the numerical control panel 2, adopts a double-station design, and fixes the crankshaft on the table through a clamping tool, controls the X-axis linear modules 32 at both ends to respectively drive the main shaft box assembly 36 below to move to the drilling points at both ends of the crankshaft, and adjusts the position of the drill bit 3605 to make it correspond to the drilling point, and then uses the drill bit 3605 to drill holes on both ends of the main journal of the crankshaft at the same time, so as to ensure the coaxiality and drilling depth. After the drilling is completed, the drill bit 3605 rises and resets, and at this time the spindle box assembly 36 is rotated to 180 degrees by the hollow rotating table 34, and the positions of the drill bit 3605 and the tap 3606 are switched, and then the tapping operation is performed, so that different processing needs of the crankshaft can be completed in one device, reducing the time required for changing equipment;

[0020] The drilling mechanism 3 includes a gantry 31, an X-axis linear module 32, a Z-axis linear module 33, a hollow rotary table 34, a seat plate 35 and a spindle box assembly 36. The X-axis linear module 32 is mounted on the left and right ends of the gantry 31, the Z-axis linear module 33 is mounted on the slide of the X-axis linear module 32, the hollow rotary table 34 is mounted on the slide of the Z-axis linear module 33, the seat plate 35 is mounted on the turntable of the hollow rotary table 34, and the spindle box assembly 36 is mounted on the seat plate 35.

[0021] The spindle box assembly 36 includes a box body 3601, a motor 3602, a driving shaft 3603, a drill chuck 3604, a drill bit 3605 and a tap 3606. The motor 3602 is fixed to the top of the box body 3601. The driving shaft 3603 is installed in the box body 3601 through a bearing, and one end of the driving shaft 3603 is fixedly connected to the output shaft end of the motor 3602. The drill chuck 3604 is installed at both ends of the box body 3601 through bearings, and the drill chuck 3604 is transmission-connected to the driving shaft 3603 through gears. The drill bit 3605 and the tap 3606 are respectively locked on the drill chuck 3604.

[0022] Specifically, a chip discharge opening 11 is provided on the table top of the frame 1 , and the chip discharge opening 11 is located at both ends of the table top of the frame 1 .

[0023] In this embodiment, the chips generated by drilling or tapping can be discharged into the chip collecting bucket 12 below through the chip discharge port 11 .

[0024] Specifically, a chip collecting bucket 12 is installed at the bottom of the table top of the frame 1, and the chip collecting bucket 12 is located below the chip discharge port 11. An outlet 13 is provided at the bottom of the chip collecting bucket 12.

[0025] In this embodiment, the chip collecting bucket 12 is mainly used to collect the chips generated by drilling or tapping.

[0026] Specifically, a chip collecting frame 4 is placed on the lower crossbeam of the frame 1 , and the chip collecting frame 4 is located below the outlet 13 .

[0027] In this embodiment, the debris collecting frame 4 is used to store debris for later cleaning.

[0028] Specifically, the X-axis linear module 32 is symmetrically arranged on the gantry 31 , and the spindle box assemblies 36 at both ends of the gantry 31 are of the same height.

[0029] In this embodiment, the X-axis linear modules 32 at both ends are controlled to respectively drive the spindle box assembly 36 below to move to the drilling points at both ends of the crankshaft.

[0030] Specifically, the drill chuck 3604 is symmetrically arranged at both ends of the box body 3601 , and the clamping portion of the drill chuck 3604 is located outside the box body 3601 .

[0031] In this embodiment, after the drill bit 3605 or the tap 3606 is in place, the X-axis linear module 32 is responsible for downward penetration, and the motor 3602 drives the active shaft 3603 to rotate, thereby driving the drill bit 3605 and the tap 3606 to rotate, and then performing drilling or tapping operations.

[0032] When in use, a double-station design is adopted (the initial positions of the drill bit 3605 and the tap 3606 are set to be one in front and the other in the back, with the drill bit 3605 in front and the tap 3606 in the back), the crankshaft is fixed on the table through a clamping tool, and the position of the crankshaft is adjusted so that its axis corresponds to the drill bit 3605, and the X-axis linear modules 32 at both ends are controlled to drive the main shaft box assembly 36 below to move to the drilling points at both ends of the crankshaft, and then the drill bit 3605 is used to drill both ends of the main journal of the crankshaft at the same time to ensure coaxiality and drilling depth. After drilling is completed, the drill bit 3605 rises and resets. At this time, the spindle box assembly 36 is driven to rotate 180 degrees through the hollow rotary table 34, and the front and rear positions of the drill bit 3605 and the tap 3606 are switched, and then tapping operations are performed. Different processing needs of the crankshaft can be completed in one device, reducing the time required for equipment replacement.

[0033] To sum up, the drilling and tapping device for crankshaft processing adopts a double-station design, and the crankshaft is fixed on the table by a clamping tool. The X-axis linear modules 32 at both ends are controlled to drive the main spindle box assembly 36 below to move to the drilling points at both ends of the crankshaft, and the position of the drill bit 3605 is adjusted to correspond to the drilling points. Then, the drill bit 3605 is used to drill both ends of the main journal of the crankshaft at the same time to ensure coaxiality and drilling depth; after drilling is completed, the drill bit 3605 rises and resets. At this time, the spindle box assembly 36 is rotated to 180 degrees through the hollow rotary table 34, and the positions of the drill bit 3605 and the tap 3606 are switched, and then the tapping operation is performed. Different processing needs of the crankshaft can be completed in one device, reducing the time required for equipment replacement.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling and tapping device for crankshaft machining, comprising a frame (1), characterized in that: A numerical control panel (2) and a drilling mechanism (3) are respectively installed on the table of the frame (1), and the drilling mechanism (3) is electrically connected to the numerical control panel (2); The drilling mechanism (3) comprises a gantry (31), an X-axis linear module (32), a Z-axis linear module (33), a hollow rotary table (34), a seat plate (35) and a spindle box assembly (36), wherein the X-axis linear module (32) is mounted on the left and right ends of the gantry (31), the Z-axis linear module (33) is mounted on the slide of the X-axis linear module (32), the hollow rotary table (34) is mounted on the slide of the Z-axis linear module (33), the seat plate (35) is mounted on the turntable of the hollow rotary table (34), and the spindle box assembly (36) is mounted on the seat plate (35); The spindle box assembly (36) comprises a box body (3601), a motor (3602), a driving shaft (3603), a drill chuck (3604), a drill bit (3605) and a tap (3606), wherein the motor (3602) is fixed to the top of the box body (3601), the driving shaft (3603) is installed in the box body (3601) via a bearing, and one end of the driving shaft (3603) is fixedly connected to the output shaft end of the motor (3602), the drill chuck (3604) is installed at both ends of the box body (3601) via bearings, and the drill chuck (3604) is transmission-connected to the driving shaft (3603) via gears, and the drill bit (3605) and the tap (3606) are respectively locked on the drill chuck (3604).

2. A crankshaft drilling and tapping device according to claim 1, characterized in that: A chip removal opening (11) is provided on the table top of the machine frame (1), and the chip removal opening (11) is located at both ends of the table top of the machine frame (1).

3. A crankshaft drilling and tapping device according to claim 2, characterized in that: A chip collecting bucket (12) is installed at the bottom of the table of the frame (1), and the chip collecting bucket (12) is located below the chip discharge port (11). An outlet (13) is provided at the bottom of the chip collecting bucket (12).

4. A crankshaft drilling and tapping device according to claim 3, characterized in that: A chip collecting frame (4) is placed on the lower crossbeam of the frame (1), and the chip collecting frame (4) is located below the outlet (13).

5. The drilling and tapping device for crankshaft machining according to claim 1, characterized in that: The X-axis linear module (32) is symmetrically arranged on the gantry (31), and the spindle box assemblies (36) at both ends of the gantry (31) are of the same height.

6. The drilling and tapping device for crankshaft machining according to claim 1, characterized in that: The drill chuck (3604) is symmetrically arranged at both ends of the box (3601), and the clamping portion of the drill chuck (3604) is located outside the box (3601).

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