Turning, milling and grinding composite tool rest for crankcase

Abstract

The utility model discloses a crankcase turning, milling and grinding composite tool rest which comprises a portal frame, a cross beam is arranged on the top of the portal frame, and a servo motor is fixedly installed at the left end of the cross beam through bolts. In the utility model, the turning and milling cutter magazine and the sharpening cutter magazine are respectively arranged on the left side and the right side of the portal frame by adopting the transmission cases, and when the sharpening frame and the turning and milling cutter frame on the cross beam need to switch cutters, the servo motor is started to drive the rolling screw rod to rotate, so that the screw rod sleeve moves along the surface of the rolling screw rod; the screw rod sleeve drives the vertical beam to transversely move left and right, so that the vertical beam gets close to the turning and milling cutter magazine or the sharpening cutter magazine, then a hydraulic cylinder arranged in the fixing shell is started to contract, so that the sharpening frame and the turning and milling cutter frame on the supporting column reach the cutter switching height, and a stepping motor in the transmission box is started to intermittently rotate at a specific angle; therefore, the position of the tool groove on the turning and milling tool magazine or the sharpening tool magazine can be adjusted, and the purpose of conveniently switching different tools for the sharpening frame and the turning and milling tool frame is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of crankcase processing equipment, in particular to a crankcase turning, milling and grinding composite tool holder. Background Art

[0002] The crankcase is the outer shell of the crankshaft in a reciprocating internal combustion engine. During the crankcase production process, turning, milling, boring, grinding, drilling and other processing are required, and processing must be carried out in a CNC machining center. CNC machine tools also mainly use CNC system machine tools. In different situations, due to the different working principles and standards of turning, milling and grinding, it is often necessary to replace equipment or tools and re-clamp during processing, which will have a certain impact on the processing accuracy and positioning accuracy, and is not conducive to the processing of high-precision or complex workpieces.

[0003] In the existing technology, the combined turning, milling and grinding processing is still being designed and modified on the platform of the CNC machining center. The application conditions for most CNC machine tools are relatively limited, and the processing efficiency and stability are not ideal enough. It does not fully meet the actual production requirements, and the cost is relatively high. The cutting tools are also a relatively special application method, and it is still unable to solve the application in most situations.

[0004] To this end, a crankcase turning, milling and grinding composite tool holder is proposed, which has the advantages of convenient turning, milling and grinding of the crankcase, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a crankcase turning, milling and grinding composite tool holder.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a crankcase turning and grinding composite tool holder, including a gantry, a crossbeam is arranged on the top of the gantry, and a servo motor is fixedly installed on the left end of the crossbeam by bolts, the output end of the servo motor extends into a cavity opened inside the crossbeam, and the output end of the servo motor is connected to a ball screw through a coupling, the right end of the ball screw is connected to the inner wall surface of the inner cavity of the crossbeam through a bearing seat, the front end surface of the crossbeam is fitted with a vertical beam, and a screw sleeve is fixedly connected to the side of the vertical beam facing the crossbeam, and the screw sleeve of the vertical beam is connected to the ball screw. The screw rods are socketed, a fixed shell is welded on the surface of the vertical beam, and a hydraulic cylinder is fixedly installed in the fixed shell, a support column is fixedly connected to the piston rod of the hydraulic cylinder, and a tool sharpening rack and a turning and milling tool rack are arranged at the bottom of the support column, a transmission box is fixedly installed on the left and right sides of the gantry respectively, and stepper motors are fixedly installed inside the two transmission boxes, a stepper motor output end of one of the transmission boxes is fixedly connected to a tool sharpening magazine, and a stepper motor output end of the other transmission box is fixedly connected to a turning and milling magazine, and a plurality of tool slots with tools are arranged around the tool sharpening magazine and the turning and milling magazine.

[0007] As a further description of the above technical solution: two parallel guide rods are fixedly connected to the upper surface of the gantry, and the two guide rods are interlaced and connected with the vertical beams, and two through holes are opened on the lower side surface of the vertical beam corresponding to the guide rods.

[0008] As a further description of the above technical solution: two T-shaped slide grooves are provided on the front end surface of the cross beam, and the two T-shaped slide grooves are arranged in parallel, and two T-shaped sliders are provided on the upper surface of the vertical beam, and the two T-shaped sliders are slidably connected to the two T-shaped slide grooves.

[0009] As a further description of the above technical solution: the tool sharpening magazine and the turning and milling magazine are both disc-shaped structures, and a plurality of tool slots are arranged around the center of the tool sharpening magazine or the turning and milling magazine.

[0010] As a further description of the above technical solution: a strip-shaped groove is formed on the front end surface of the beam through the inner cavity.

[0011] As a further description of the above technical solution: a control panel is arranged on the gantry, and the output end of the control panel is electrically connected to the servo motor, the hydraulic cylinder and the stepper motor respectively.

[0012] The utility model has the following beneficial effects:

[0013] The utility model adopts a transmission box to be respectively provided with a turning and milling tool magazine and a sharpening tool magazine on the left and right sides of the gantry. When the sharpening rack and the turning and milling tool magazine on the crossbeam need to switch tools, the servo motor is started to drive the rolling screw to rotate, and then the screw sleeve moves along the surface of the rolling screw, so that the screw sleeve drives the vertical beam to move left and right, so that the vertical beam can be close to the turning and milling tool magazine or the sharpening tool magazine, and then the hydraulic cylinder arranged in the fixed shell is started to contract, so that the sharpening rack and the turning and milling tool magazine on the support column reach the tool switching height, and the stepping motor in the transmission box is started to rotate intermittently at a specific angle, so as to adjust the tool slot position on the turning and milling tool magazine or the sharpening tool magazine, so as to achieve the purpose of conveniently switching different tools for the sharpening rack and the turning and milling tool magazine. Compared with the method of performing turning, milling and grinding in multiple devices, it is beneficial to improve the machining accuracy of the crankcase. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a crankcase turning, milling and grinding composite tool holder of the utility model;

[0015] Figure 2 This is a schematic diagram of the vertical beam structure of a crankcase turning, milling and grinding composite tool holder of the utility model;

[0016] Figure 3 The utility model is a schematic diagram of the transmission box structure of a crankcase turning, milling and grinding composite tool holder.

[0017] Legend:

[0018] 1. Gantry; 2. Crossbeam; 3. Servo motor; 4. T-shaped slide; 5. Vertical beam; 6. Give way groove; 7. Ball screw; 8. Fixed shell; 9. Support column; 10. Sharpening rack; 11. Turning and milling tool rack; 12. Transmission box; 13. Turning and milling tool magazine; 14. Guide rod; 15. Sharpening tool magazine; 16. T-shaped slide; 17. Through hole; 18. Hydraulic cylinder; 19. Screw sleeve; 20. Stepper motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] According to an embodiment of the utility model, a crankcase turning, milling and grinding composite tool holder is provided.

[0021] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3As shown, a crankcase turning and grinding composite tool holder according to an embodiment of the utility model includes a gantry 1, a crossbeam 2 is arranged on the top of the gantry 1, and a servo motor 3 is fixedly installed on the left end of the crossbeam 2 by bolts, the output end of the servo motor 3 extends into the cavity opened inside the crossbeam 2, and the output end of the servo motor 3 is connected to the ball screw 7 through a coupling, the right end of the ball screw 7 is connected to the inner wall surface of the inner cavity of the crossbeam 2 through a bearing seat, a vertical beam 5 is fitted and connected to the front end surface of the crossbeam 2, and a screw sleeve 19 is fixedly connected to the side of the vertical beam 5 facing the crossbeam 2, and the screw sleeve 19 of the vertical beam 5 is sleeved with the ball screw 7, a fixed shell 8 is welded on the surface of the vertical beam 5, and a hydraulic cylinder 18 is fixedly installed in the fixed shell 8, a support column 9 is fixedly connected to the piston rod of the hydraulic cylinder 18, and the bottom of the support column 9 is provided with The tool grinding rack 10 and the turning and milling tool rack 11, a transmission box 12 is fixedly installed on the left and right sides of the gantry 1, and a stepper motor 20 is fixedly installed inside the two transmission boxes 12, the output end of the stepper motor 20 of one transmission box 12 is fixedly connected to the tool grinding magazine 15, and the output end of the stepper motor 20 of the other transmission box 12 is fixedly connected to the turning and milling tool magazine 13, and the tool grinding magazine 15 and the turning and milling tool magazine 13 are surrounded by a plurality of tool slots with tools. The utility model is actually provided with a tool grinding rack 10 and a turning and milling tool rack 11 on the vertical beam 5, and the tool grinding rack 10 and the turning and milling tool rack 11 can be automatically moved to the tool magazine for automatic tool change, so that the machine tool can complete more types of processing, and the tool change process and other machine tool components not involved in this device are the same as the prior art or can be implemented by the prior art;

[0022] In one embodiment, two parallel guide rods 14 are fixedly connected to the upper surface of the gantry 1, and the two guide rods 14 are interlaced and connected with the vertical beam 5. Two through holes 17 are provided on the lower side surface of the vertical beam 5 corresponding to the guide rods 14. The setting of the guide rods 14 is conducive to ensuring the overall stability of the vertical beam 5.

[0023] In one embodiment, two T-shaped grooves 4 are provided on the front end surface of the cross beam 2, and the two T-shaped grooves 4 are arranged in parallel. Two T-shaped sliders 16 are provided on the upper surface of the vertical beam 5, and the two T-shaped sliders 16 are slidably connected to the two T-shaped grooves 4. The use of two T-shaped sliders 16 and the two T-shaped grooves 4 in a slidable connection is beneficial to improving the smoothness of the movement of the vertical beam 5.

[0024] In one embodiment, the sharpening tool magazine 15 and the turning and milling tool magazine 13 are both disc-shaped structures, and a plurality of tool slots are arranged around the center of the sharpening tool magazine 15 or the turning and milling tool magazine 13. By setting the sharpening tool magazine 15 and the turning and milling tool magazine 13, the sharpening tools and the turning and milling tools can be stored in a classified manner. Compared with the existing method of integrating the tools required for turning, milling, boring, grinding, drilling and other processing steps into the tool magazine, it not only reduces the phenomenon of easy loading saturation caused by a large number of tools, but also avoids the confusion between sharpening tools and turning and milling tools.

[0025] In one embodiment, a strip-shaped clearance groove 6 is provided on the front end surface of the cross beam 2 through the inner cavity, and the clearance groove 6 is provided to make way for the movement of the screw sleeve 19 .

[0026] In one embodiment, a control panel is provided on the gantry 1, and the output ends of the control panel are electrically connected to the servo motor 3, the hydraulic cylinder 18 and the stepper motor 20 respectively. The control circuit of the control panel (that is, the control panel of the machine tool corresponding to the gantry 1) can be realized by simple programming by technicians in this field. It belongs to the common knowledge in this field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0027] Working principle:

[0028] When in use, firstly, a milling tool magazine 13 and a sharpening tool magazine 15 are installed on the left and right sides of the gantry 1 respectively, and corresponding tools are arranged in a plurality of tool grooves around the milling tool magazine 13 and the sharpening tool magazine 15. When the sharpening rack 10 and the milling tool rack 11 on the crossbeam 2 need to switch tools, the ball screw 7 is driven to rotate by starting the servo motor 3, and then the screw sleeve 19 moves along the surface of the ball screw 7, so that the screw sleeve 19 drives the vertical beam 5 to move horizontally left and right. When the sharpening rack 10 on the vertical beam 5 is close to the sharpening tool magazine 15 or the milling tool rack 11 is close to the milling tool magazine 13, the servo motor 3 is turned to rotate. The hydraulic cylinder 18 arranged in the fixed shell 8 is started to contract, so that the tool grinding rack 10 and the turning and milling tool rack 11 on the support column 9 reach the tool switching height, and the stepping motor 20 in the transmission box 12 is started to rotate intermittently at a specific angle to adjust the tool slot position on the turning and milling tool magazine 13 or the tool grinding magazine 15. When the required tool is directly under the tool grinding rack 10 or the turning and milling tool rack 11, the hydraulic cylinder 18 in the vertical beam 5 is started to extend, so that the tool is directly stuck on the tool shaft of the tool grinding rack 10 or the turning and milling tool rack 11, so as to facilitate the switching of different tools for the tool grinding rack 10 and the turning and milling tool rack 11.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crankcase turning, milling and grinding composite tool holder, comprising a gantry (1), characterized in that: A crossbeam (2) is arranged on the top of the gantry (1), and a servo motor (3) is fixedly installed on the left end of the crossbeam (2) by bolts, the output end of the servo motor (3) extends into a cavity provided inside the crossbeam (2), and the output end of the servo motor (3) is connected to a ball screw (7) through a coupling, the right end of the ball screw (7) is connected to the inner wall surface of the inner cavity of the crossbeam (2) through a bearing seat, the front end surface of the crossbeam (2) is fitted with a vertical beam (5), and a screw sleeve (19) is fixedly connected to a side of the vertical beam (5) facing the crossbeam (2), and the screw sleeve (19) of the vertical beam (5) is sleeved with the ball screw (7), and a fixed shell (8) is welded on the surface of the vertical beam (5), and the fixed shell (8) A hydraulic cylinder (18) is fixedly installed inside, a support column (9) is fixedly connected to the piston rod of the hydraulic cylinder (18), and a sharpening rack (10) and a turning and milling rack (11) are arranged at the bottom of the support column (9), a transmission box (12) is fixedly installed on the left and right sides of the gantry (1), and stepper motors (20) are fixedly installed inside the two transmission boxes (12), the output end of the stepper motor (20) of one of the transmission boxes (12) is fixedly connected to a sharpening tool magazine (15), and the output end of the stepper motor (20) of the other transmission box (12) is fixedly connected to a turning and milling tool magazine (13), and a plurality of tool slots with tools are arranged around the sharpening tool magazine (15) and the turning and milling tool magazine (13).

2. The crankcase turning, milling and grinding composite tool holder according to claim 1, characterized in that: The upper surface of the gantry (1) is fixedly connected to two parallel guide rods (14), and the two guide rods (14) are both interlaced and connected to the vertical beam (5), and the lower side surface of the vertical beam (5) is provided with two through holes (17) corresponding to the guide rods (14).

3. The crankcase turning, milling and grinding composite tool holder according to claim 1, characterized in that: The front end surface of the cross beam (2) is provided with two T-shaped slide grooves (4), and the two T-shaped slide grooves (4) are arranged in parallel. The upper surface of the vertical beam (5) is provided with two T-shaped sliders (16), and the two T-shaped sliders (16) are slidably connected to the two T-shaped slide grooves (4).

4. The crankcase turning, milling and grinding composite tool holder according to claim 1, characterized in that: The tool sharpening magazine (15) and the turning and milling magazine (13) are both disc-shaped structures, and a plurality of tool slots are arranged around the center of the tool sharpening magazine (15) or the turning and milling magazine (13).

5. The crankcase turning, milling and grinding composite tool holder according to claim 1, characterized in that: The front end surface of the cross beam (2) is provided with a strip-shaped clearance groove (6) penetrating through the inner cavity.

6. The crankcase turning, milling and grinding composite tool holder according to claim 1, characterized in that: The gantry (1) is provided with a control panel, and the output end of the control panel is electrically connected to the servo motor (3), the hydraulic cylinder (18) and the stepping motor (20) respectively.

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