Crankshaft tail machining device

Abstract

The utility model discloses a crankshaft tail processing device, which aims to be compatible with two procedures of end drilling and tail groove milling and is more flexible, and adopts the technical scheme that the crankshaft tail processing device comprises a workbench, a workpiece clamping seat, a base fixed on the workbench and a pressing module arranged on the workbench, the workpiece clamping seat is fixed in the clamping groove in a detachable mode, the workpiece clamping seat is provided with a through hole used for containing a crankshaft, the through hole penetrates through the workpiece clamping seat in the first direction, and the crankshaft is pressed in the through hole through the pressing module; a drilling module and a tail groove milling module are arranged on the workbench, the drilling module is in butt joint with one clamping groove, and the tail groove milling module is in butt joint with the other clamping groove; belongs to the technical field of crankshaft machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of crankshaft processing, and more specifically, relates to a device for processing the tail of a crankshaft. Background Art

[0002] The tail of the crankshaft needs additional processing, including milling the tail groove and drilling at the end. Due to the unique shape of the crankshaft, an additional device is required to position the crankshaft to facilitate the tail processing.

[0003] Patent CN202020572155.3 discloses a device for milling the tail groove of an air-conditioning compressor crankshaft, including: a sliding table movably arranged on a machine tool; a fixing mechanism including a base, a workpiece clamping seat and a rotating oil cylinder; the base is fixed on the sliding table, the workpiece clamping seat is arranged on the base, the workpiece clamping seat is provided with a through hole for placing the crankshaft along the moving direction of the sliding table, and the bottom of the through hole is a V-shaped structure; an opening communicating with the through hole from top to bottom is arranged above the workpiece clamping seat, and the rotating oil cylinder drives a pressing block to enter the workpiece clamping seat from the opening to press the crankshaft; a turning mechanism including a power member and a saw blade milling cutter driven by the power member; the saw blade milling cutter is located on the moving path of the crankshaft; wherein, the sliding table drives the crankshaft fixed on the fixing mechanism to approach / leave the turning mechanism, so as to realize the contact / separation of the crankshaft and the saw blade milling cutter.

[0004] The above milling device can complete the milling process of the tail groove of the crankshaft, but it cannot complete the end drilling, and it controls the processing depth of the tail groove based on the movement of the sliding table, which means that its two workpiece clamping seats must be of the same part and process the same process, with poor flexibility. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a device for processing the tail of a crankshaft, aiming to be compatible with two processes of end drilling and milling the tail groove, and being more flexible.

[0006] According to the first aspect of the utility model, a device for processing the tail of a crankshaft is provided, including a workbench, a workpiece clamping seat, a base fixed on the workbench and a pressing module arranged on the workbench. Two clamping grooves are arranged on the base, the workpiece clamping seat is detachably fixed in the clamping grooves, the workpiece clamping seat is provided with a through hole for placing the crankshaft, the through hole penetrates through the workpiece clamping seat along a first direction, and the pressing module presses the crankshaft in the through hole.

[0007] A drilling module and a tail groove milling module are arranged on the workbench, the drilling module is docked with one of the clamping grooves, and the tail groove milling module is docked with the other clamping groove.

[0008] The drilling module includes a drill bit assembly and a first driving assembly. The first driving assembly drives the drill bit assembly to move in a first direction so that the drill bit assembly drills the end of the crankshaft.

[0009] The tail slot milling module includes a saw blade assembly and a second driving assembly. The second driving assembly drives the saw blade assembly to move up and down so that the saw blade assembly mills the tail slot of the crankshaft.

[0010] In the above-mentioned crankshaft tail processing device, the workpiece clamp includes a first workpiece clamp and a second workpiece clamp. The slot for installing the first workpiece clamp is docked with the drilling module, and the slot for installing the second workpiece clamp is docked with the tail slot milling module. One end of the second workpiece clamp away from the saw blade assembly is provided with a recess, and the through hole is arranged at the bottom of the recess. The eccentric block of the crankshaft can enter the recess and contact the side wall of the recess.

[0011] In the above-mentioned crankshaft tail processing device, the top of the workpiece clamp is provided with an opening penetrating from top to bottom, and the opening is communicated with the through hole. The pressing module includes a pressing block and a pressing driving mechanism. The pressing driving mechanism drives the pressing block to move up and down so that the pressing block enters the opening to press the crankshaft.

[0012] In the above-mentioned crankshaft tail processing device, the lower end of the pressing block is an arc-shaped notch, and at least part of the arc-shaped notch fits the outer wall of the crankshaft.

[0013] In the above-mentioned crankshaft tail processing device, one end of the base in the first direction is the feeding end, and the other end of the base in the first direction is the processing end. The drilling module and the tail slot milling module are both docked at the processing end.

[0014] In the above-mentioned crankshaft tail processing device, the processing end is provided with two partitions extending in the first direction. The two partitions are arranged horizontally at intervals. The partitions are located between the drill bit assembly and the saw blade assembly, and a wire routing channel is formed between the two partitions.

[0015] One of the technical solutions in the above technical solutions of the present invention has at least the following advantages or beneficial effects:

[0016] In the present utility model, a drilling module and a tail slot milling module are provided, which are respectively docked with two card slots. Workpiece holders are arranged in both card slots. The crankshaft in one workpiece holder can be subjected to end drilling, and the crankshaft in the other workpiece holder can be subjected to tail slot milling. Two processes can be executed simultaneously. Moreover, if the crankshaft needs to complete two processes of end drilling and tail slot milling, the device can achieve continuous operation. The crankshaft that has completed end drilling can be taken out and directly placed into another workpiece holder to complete tail slot milling during the next processing. The whole device has good flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0018] Figure 1 is the front view of the first embodiment of the present utility model;

[0019] Figure 2 is the top view of the first embodiment of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the first workpiece holder of the first embodiment of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the second workpiece holder of the first embodiment of the present utility model.

[0022] Among them, the reference numerals of each figure:

[0023] 1, workbench; 2, workpiece holder; 21, through hole; 22, recessed part; 23, opening; 2a, first workpiece holder; 2b, second workpiece holder; 3, base; 31, card slot; 4, pressing module; 41, pressing block; 42, pressing drive mechanism; 5, drilling module; 51, drill bit assembly; 52, first drive assembly; 6, tail slot milling module; 61, saw blade assembly; 62, second drive assembly; 7, partition board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0025] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0026] Referring to Figures 1 to 4As shown in the figure, in one embodiment of the present utility model, a processing device for the tail of a crankshaft includes a workbench 1, a workpiece clamping seat 2, a base 3 fixed on the workbench 1, and a pressing module 4 arranged on the workbench 1. There are two clamping grooves 31 on the base 3, and the workpiece clamping seat 2 is detachably fixed in the clamping grooves 31. The workpiece clamping seat 2 is provided with a through hole 21 for placing the crankshaft, and the through hole 21 penetrates the workpiece clamping seat 2 along the first direction. The pressing module 4 presses the crankshaft in the through hole 21;

[0027] A drilling module 5 and a tail groove milling module 6 are arranged on the workbench 1. The drilling module 5 is docked with one of the clamping grooves 31, and the tail groove milling module 6 is docked with the other clamping groove 31;

[0028] The drilling module 5 includes a drill bit assembly 51 and a first driving assembly 52. The first driving assembly 52 drives the drill bit assembly 51 to move along the first direction so that the drill bit assembly 51 drills the end of the crankshaft;

[0029] The tail groove milling module 6 includes a saw blade assembly 61 and a second driving assembly 62. The second driving assembly 62 drives the saw blade assembly 61 to move up and down so that the saw blade assembly 61 mills the tail groove of the crankshaft;

[0030] The drilling module 5 and the tail groove milling module 6 are set and respectively docked with the two clamping grooves 31. The workpiece clamping seats 2 are arranged in both clamping grooves 31. The crankshaft in one workpiece clamping seat 2 can be subjected to end drilling processing, and the crankshaft in the other workpiece clamping seat 2 can be subjected to tail groove milling processing. Two processes can be executed simultaneously. Moreover, if the crankshaft needs to complete two processes of end drilling and tail groove milling, the device can achieve continuous operation. The crankshaft that has completed end drilling can be taken out and directly placed into the other workpiece clamping seat 2 to complete tail groove milling during the next processing. The whole device has good flexibility.

[0031] In this embodiment, the drill bit assembly 51 includes a drill bit and a first motor for driving the drill bit to rotate. The first driving assembly 52 is a hydraulic cylinder. The first motor is connected to the first driving assembly 52, and the first driving assembly 52 drives the first motor to move, thereby driving the drill bit to move;

[0032] The saw blade assembly 61 includes a saw blade and a second motor for driving the saw blade to rotate. The second driving assembly 62 is also a hydraulic cylinder. The second motor is connected to the second driving assembly 62, and the second driving assembly 62 drives the second motor to lift, thereby driving the saw blade to lift.

[0033] In this embodiment, the workpiece holder 2 includes a first workpiece holder 2a and a second workpiece holder 2b. The slot 31 for installing the first workpiece holder 2a is docked with the drilling module 5, and the slot 31 for installing the second workpiece holder 2b is docked with the tail slot milling module 6. At one end of the second workpiece holder 2b away from the saw blade assembly 61, there is a recess 22, and the through hole 21 is arranged at the bottom of the recess 22. The eccentric block of the crankshaft can enter the recess 22 and contact the side wall of the recess 22.

[0034] When milling the tail slot, it is necessary to position the tail slot. Therefore, the second workpiece holder 2b is provided with a recess 22, and the eccentric block of the crankshaft is used for positioning to confirm the position of the tail slot, which is convenient for the saw blade assembly 61 to process. The first workpiece holder 2a does not need to be provided with a recess 22. Based on this, the first workpiece holder 2a and the second workpiece holder 2b can also be distinguished, reducing installation errors.

[0035] In this embodiment, an opening 23 penetrating from top to bottom is provided at the top of the workpiece holder 2, and the opening 23 is communicated with the through hole 21. The pressing module 4 includes a pressing block 41 and a pressing driving mechanism 42. The pressing driving mechanism 42 drives the pressing block 41 to move up and down so that the pressing block 41 enters the opening 23 to press the crankshaft.

[0036] The pressing driving mechanism 42 is a hydraulic cylinder. The output end of the hydraulic cylinder is connected with a cross bar. There are two pressing blocks 41 in total, and the two pressing blocks 41 are respectively located at both ends of the cross bar. The hydraulic cylinder drives the cross bar to lift and lower, thereby driving the pressing blocks 41 to lift and lower.

[0037] In this embodiment, the lower end of the pressing block 41 is an arc-shaped notch, and the arc-shaped notch at least partially fits the outer wall of the crankshaft to ensure that the pressing block 41 can contact the crankshaft and the pressing effect is good.

[0038] In this embodiment, one end of the base 3 along the first direction is the feeding end, and the other end of the base 3 along the first direction is the processing end. The drilling module 5 and the tail slot milling module 6 are both docked at the processing end. During processing, the crankshaft is placed into the workpiece holder 2 from the feeding end, and at the same time, the crankshaft is taken out of the workpiece holder 2 from the feeding end. The drilling module 5 and the tail slot milling module 6 are both located on the other side, which is safer and more reliable.

[0039] In this embodiment, two partitions 7 extending along the first direction are provided at the processing end. The two partitions 7 are arranged horizontally at intervals. The partitions 7 are located between the drill bit assembly 51 and the saw blade assembly 61. A wire routing channel is formed between the two partitions 7. The hydraulic pipeline of the pressing driving mechanism 42 can pass through the wire routing channel and then be connected to an external hydraulic station. The partitions 7 can well protect the hydraulic pipeline and prevent the drill bit and the saw blade from damaging the hydraulic pipeline.

[0040] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A crankshaft tail processing device, comprising a workbench, a workpiece holder, a base fixed on the workbench and a clamping module arranged on the workbench, characterized in that: The base is provided with two slots, the workpiece holder is detachably fixed in the slots, the workpiece holder is provided with a through hole for placing the crankshaft, the through hole penetrates the workpiece holder along a first direction, and the clamping module clamps the crankshaft in the through hole; The workbench is provided with a drilling module and a tail slot milling module, the drilling module is docked with one of the slots, and the tail slot milling module is docked with the other slot; The drilling module includes a drill assembly and a first drive assembly, wherein the first drive assembly drives the drill assembly to move along a first direction so that the drill assembly drills an end portion of the crankshaft; The tail groove milling module includes a saw blade assembly and a second driving assembly, and the second driving assembly drives the saw blade assembly to move up and down so that the saw blade assembly mills the tail groove of the crankshaft.

2. The crankshaft tail processing device according to claim 1, characterized in that: The workpiece holder includes a first workpiece holder and a second workpiece holder. The slot for installing the first workpiece holder is docked with the drilling module, and the slot for installing the second workpiece holder is docked with the milling tail slot module. A recess is provided at one end of the second workpiece holder away from the saw blade assembly, and the through hole is provided at the bottom of the recess. The eccentric block of the crankshaft can enter the recess and contact the side wall of the recess.

3. The crankshaft tail processing device according to claim 1, characterized in that: The top of the workpiece holder is provided with an opening which runs through from top to bottom, and the opening is connected to the through hole. The clamping module includes a clamping block and a clamping driving mechanism, and the clamping driving mechanism drives the clamping block to move up and down so that the clamping block enters the opening to clamp the crankshaft.

4. The crankshaft tail processing device according to claim 3, characterized in that: The lower end of the pressing block is an arc-shaped notch, and the arc-shaped notch at least partially fits the outer wall of the crankshaft.

5. The crankshaft tail processing device according to claim 1, characterized in that: One end of the base along the first direction is a feeding end, and the other end of the base along the first direction is a processing end. The drilling module and the milling slot module are both connected to the processing end.

6. The crankshaft tail processing device according to claim 5, characterized in that: The processing end is provided with two partitions extending along the first direction, the two partitions are arranged horizontally and spaced apart, the partitions are located between the drill head assembly and the saw blade assembly, and a wiring channel is formed between the two partitions.

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