Chambering and chip removal tool of multi-head drill

Abstract

The utility model discloses a multi-head drill chambering chip removal tool which comprises a machine frame, a power device, a plurality of chambering cutters and a cutter disc used for installing the chambering cutters, and the chambering cutters are evenly distributed on the peripheral side of the surface of the bottom end of the cutter disc and rotationally connected with the cutter disc. The power device comprises a lifting assembly and a rotating assembly, the rotating assembly is fixedly arranged on the cutter disc and drives the reaming cutters to rotate, and the lifting assembly drives the rotating assembly and the cutter disc to ascend and descend. A fixing disc used for fixing the ends of springs is arranged at the bottom end of the cutter disc, the peripheries of the multiple reaming cutters are all sleeved with the springs, one ends of the springs are fixed to the fixing disc, chip removal cutter sleeves are arranged at the other ends of the springs, and the chip removal cutter sleeves drive iron slag on the peripheries of the reaming cutters to fall off under the action of the springs. The broaching tool has the advantages that when the surface of a workpiece is subjected to broaching machining, the spring can clean iron slag wound on the surface of the broaching tool, manpower is saved, and meanwhile potential safety hazards of iron slag cleaning are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel processing, in particular to a multi-head drilling, hole enlarging and chip removal tool. Background Art

[0002] The apertures distributed on the surface of existing wheel rims are processed by drilling with a multi-axis reamer in order to improve the aperture accuracy of the wheel rims. After processing, the accuracy of the wheel rim surface is improved. Synchronous drilling with multiple reamers has the advantage of high processing efficiency.

[0003] When machining the surface of the wheel rim, the machining hole allowance is different. The tool is frequently used and worn, and then it is processed again, which generates a lot of iron chips, which damage the surface of the product during rotation and affect the overall quality. Therefore, the iron chips need to be cleaned manually, but the iron chips wrapped around the reamer cannot be cleaned in time by manual methods. In addition, the risk factor of manual cleaning of iron chips is high and the labor intensity is high, so improvements need to be made. Utility Model Content

[0004] The utility model aims to provide a multi-head drill hole enlarging chip removal tool which can timely clean the iron chips wound on the surface of the hole enlarging cutter and has a high safety factor.

[0005] The utility model provides a multi-head drilling reaming and chip removal tool, comprising a frame, a power device, a plurality of reaming knives and a tool disc for installing the reaming knives, wherein the plurality of reaming knives are evenly distributed on the peripheral side of the bottom end surface of the tool disc and are rotatably connected to the tool disc;

[0006] The power device is arranged on the frame, and the power device comprises a lifting assembly and a rotating assembly, wherein the rotating assembly is fixedly arranged on the tool disc and drives each reaming cutter to rotate, and the lifting assembly drives the rotating assembly and the tool disc to rise and fall;

[0007] A fixing plate for fixing the end of a spring is provided at the bottom end of the tool disc, and springs are sleeved on the periphery of several of the reaming knives, one end of several of the springs is fixed to the fixing plate, and a chip removal tool sleeve is provided on the other end of several of the springs. Each of the reaming knives is passed through the chip removal tool sleeve, and the chip removal tool sleeve drives the iron slag on the periphery of the reaming knife to fall off under the action of the spring.

[0008] Preferably, the rotating assembly is configured as a motor gear box, including a housing, a rotating motor, a driving gear, a plurality of driven gears and a plurality of connecting gears, each of the driven gears is respectively mounted and fixed to each reaming cutter, the driving gear is fixedly arranged on the rotating shaft of the rotating motor, the connecting gears are respectively meshed with the driving gear and the driven gear, and the driving gear rotates through the connecting gear to drive the driven gear to rotate.

[0009] Preferably, a mounting ring is fixedly provided at one end of the spring away from the fixed plate, a lower hole sleeve is provided between the spring and the chip removal sleeve, the surface of the lower hole sleeve is threaded, and the two ends of the lower hole sleeve are respectively threadedly connected to the mounting ring and the chip removal sleeve.

[0010] Preferably, the tool disc includes a disc body and a plurality of fixing rods, wherein the plurality of fixing rods are evenly distributed along the circumferential surface of the disc body, a mounting hole is provided on the surface of the fixing rod, one end of the reaming knife is inserted into the mounting hole and is detachably mounted between the driven gear.

[0011] Preferably, a mounting piece is fixedly provided at the bottom end of the driven gear, a mounting groove is opened at the bottom end of the mounting piece, a mounting handle is provided at the top end of the reaming knife, the thickness dimension of the mounting handle is set to "L", the width dimension of the mounting groove is set to "D", and L>D is satisfied, and the mounting handle is embedded in the mounting groove.

[0012] Preferably, the lifting assembly is configured as a lifting cylinder, the lifting cylinder is vertically fixed on a frame, and a telescopic rod of the lifting cylinder is fixed to the rotating assembly.

[0013] Preferably, it also includes a workpiece platform, which is located at the bottom end of the plurality of reaming knives, and a positioning plate is provided on the workpiece platform, and the center hole of the workpiece is sleeved on the periphery of the positioning plate.

[0014] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0015] 1. The chip removal tool sleeve can clean up the iron chips wrapped around the surface of the reamer in time under the action of the spring, which not only saves manpower but also has the advantage of high safety factor.

[0016] 2. According to the workpiece to be expanded, the corresponding expansion tool and chip removal tool sleeve can be selected to realize the detachable installation of the expansion tool and the rotating assembly. The chip removal tool sleeve and the lower hole sleeve are threadedly connected, which improves the applicability of the multi-head drill expansion and chip removal tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a multi-head drilling, hole enlarging and chip removal tooling in an embodiment;

[0018] Figure 2 is a schematic diagram of the installation of the workpiece of the embodiment;

[0019] Figure 3 is a schematic structural diagram of a rotating assembly of an embodiment;

[0020] Figure 4 Schematic diagram of the structure of the tool disc and the reaming tool in the embodiment;

[0021] Figure 5 is a bottom view of the tool disc of the embodiment;

[0022] Figure 6 is a schematic structural diagram of a driven gear, a mounting member and a mounting groove in an embodiment;

[0023] Figure 7 is a schematic structural diagram of a reamer and a mounting handle in an embodiment;

[0024] Figure 8 Schematic diagram of the structure of the spring, mounting ring and chip removal tool sleeve of the embodiment;

[0025] Fig. 9 It is an exploded schematic diagram of the spring, mounting ring and chip removal tool sleeve of the embodiment.

[0026] Figure numerals: 1. frame; 2. power device; 21. lifting assembly; 22. rotating assembly; 221. housing; 222. rotating motor; 223. driving gear; 224. driven gear; 225. connecting gear; 226. mounting piece; 2261. mounting groove; 3. tool disc; 31. disc body; 32. fixing rod; 321. mounting hole; 33. fixing disc; 4. reaming knife; 41. mounting handle; 5. workpiece platform; 51. positioning disc; 6. spring; 61. mounting ring; 7. lower hole sleeve; 71. thread; 8. chip removal tool sleeve. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figure 1-9 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Reference Figure 1-Figure 4A multi-head drilling reaming and chip removal tool comprises a frame 1, a power device 2, a tool disc 3 and a plurality of reaming knives 4, wherein the power device 2 comprises a lifting assembly 21 and a rotating assembly 22, the lifting assembly 21 is set as a lifting cylinder, the lifting cylinder is fixedly arranged on the frame 1, and the telescopic rod of the lifting cylinder is kept vertically downward. The rotating assembly 22 is set as a motor gearbox, the motor gearbox comprises a housing 221, a rotating motor 222, a driving gear 223, a plurality of driven gears 224 and a plurality of connecting gears 225, the housing 221 is fixedly arranged on the tool disc 3, the rotating motor 222 is fixedly arranged on the housing 221, the rotating shaft of the rotating motor 222 is penetrated into the housing 221 and fixed to the driving gear 223, a plurality of reaming knives 4 are evenly arranged on the peripheral side of the bottom surface of the tool disc 3 and are rotatably connected between the tool disc 3, and the reaming knives 4 are mutually enclosed to form a circle. The driving gear 223, the driven gear 224 and the connecting gear 225 are all rotatably arranged on the tool disc 3, wherein the connecting gear 225 is arranged between the driving gear 223 and the driven gear 224, and the connecting gear 225 is respectively meshed with the driving gear 223 and the driven gear 224, and each driven gear 224 is respectively installed and fixed with each reaming knife 4.

[0029] The rotating shaft of the rotating motor 222 rotates to drive the driving gear 223 to rotate, and the transmission is transmitted through the connecting gear 224 to drive the driven gear 225 and the reaming cutter 4 to rotate, so that the reaming cutter 4 can perform reaming processing on the surface of the workpiece. The motor gear box and the tool disk 3 are driven to rise and fall by the lifting cylinder, thereby driving a plurality of reaming cutters 4 to rise and fall to perform reaming processing on the surface of the workpiece. The lifting cylinder drives the motor gear box and the tool disk 3 to rise and fall, which has the advantages of easy control and stable power transmission.

[0030] In order to enable the multi-head drill reaming and chip removal tool to accurately ream the workpiece, a workpiece platform 5 for workpiece installation is provided at the bottom end of the plurality of reaming knives 4, and a positioning plate 51 is provided at the center position of the workpiece platform 5. The workpiece to be processed is mounted on the workpiece platform 5 so that the center hole of the workpiece corresponds to the positioning plate 51. The positioning plate 51 is penetrated into the center hole of the workpiece, so as to complete the precise positioning and installation of the workpiece.

[0031] Reference Figure 5 , Figure 6 and Figure 7The tool disk 3 includes a disk body 31 and a plurality of fixed rods 32. The plurality of fixed rods 32 are evenly distributed along the circumference of the bottom surface of the disk body 31. The fixed rods 32 are mutually surrounded at the bottom end of the disk body 31 to form a circle. A mounting hole 321 is vertically opened in each fixed rod 32. A mounting member 226 is fixedly arranged at the bottom end of each driven gear 224, and a mounting groove 2261 is opened at the bottom end of the mounting member 226. One end of the mounting member 226 is inserted into the mounting hole 321 of the fixed rod 32. Correspondingly, a mounting handle 41 is fixedly arranged at the top end of the reaming knife 4. The thickness dimension of the mounting handle 41 is set to "L", and the width dimension of the mounting groove 2261 is set to "D", and L>D is satisfied. One end of each reaming knife 4 provided with the mounting handle 41 is respectively inserted into the fixed rod 32, and the mounting handle 41 is inserted into the mounting groove 2261, so that the rotation of the driven gear 224 can drive the reaming knife 4 to rotate. The installation method between the mounting handle 41 and the mounting member 226 is not only firmly fixed, but also convenient for replacing different types of reaming knives 4 to be installed therewith.

[0032] Reference Figure 2 , Figure 8 and Fig. 9 When the multi-drill reaming and chip removal tool is used to reame the surface of the workpiece, the iron slag generated by the reaming is wound around the reaming cutter 4. In order to be able to clean the iron slag wrapped around the reaming cutter 4 in time, so as to avoid the iron slag from scratching the surface of the workpiece. A fixed disk 33 is fixedly arranged on the periphery of each fixed rod 32, and a spring 6 is sleeved on the periphery of each reaming cutter 4. One end of each spring 6 is fixed to the fixed disk 33, and a mounting ring 61 is fixedly arranged on the end of each spring 6 away from the fixed disk 33. The internal thread 71 of each mounting ring 61 is connected to the lower hole sleeve 7. Similarly, a thread 71 is formed on the surface of each lower hole sleeve 7, and a chip removal tool sleeve 8 is installed on each lower hole sleeve 7 through the thread 71.

[0033] When the workpiece surface is expanded, a corresponding type of expansion tool 4 is selected according to the size of the expansion hole required for the workpiece, and one end of the expansion tool 4 is inserted into the mounting hole 321 of the fixing rod 32, and the expansion tool 4 is fixedly installed with the motor gear box. Correspondingly, a chip removal tool sleeve 8 corresponding to the type of expansion tool 4 is selected, and the chip removal tool sleeve 8 is connected and fixed with the lower hole sleeve 7 by threads 71, so that the expansion tool 4 is inserted out of the lower hole sleeve 7. The expansion tools 4 are detachably installed with the motor gear box, which improves the usability of the multi-head drill expansion and chip removal tooling.

[0034] When the workpiece surface is expanded, the expansion cutter 4 rotates under the action of the motor gearbox, and then is driven down by the lifting cylinder to expand the workpiece surface. The expansion cutter 4 is inserted into the workpiece during expansion, and the lower hole sleeve 7 abuts against the surface of the workpiece. As the expansion cutter 4 is inserted out of the workpiece, the lower hole sleeve 7 drives the iron slag wrapped around the expansion cutter 4 to separate under the action of the spring 6. In this way, when the workpiece surface is expanded, the iron slag wrapped around the expansion cutter 4 can be automatically cleaned. The safety hazard of cleaning the iron filings wrapped around the expansion cutter 4 is reduced.

[0035] The specific implementation principle of the embodiment of the present application is as follows: when the workpiece needs to be reamed, the workpiece to be reamed is mounted on the workpiece platform 5, so that the positioning plate 51 on the workpiece platform 5 is embedded in the middle hole of the workpiece, thereby completing the precise positioning of the workpiece. According to the size of the hole to be reamed of the workpiece, a reaming tool 4 and a chip removal tool sleeve 8 of a corresponding model are selected, one end of the reaming tool 4 is inserted into the mounting hole 321 of the fixing rod 32, and the mounting handle 41 at the top of the reaming tool 4 is embedded in the mounting groove 2261 of the mounting member 226, so that the reaming tool 4 and the mounting member 226 are fixedly mounted, and the chip removal tool sleeve 8 is arranged on the periphery of one end of the reaming tool 4 and is connected and fixed with the lower hole sleeve 7 by thread 71.

[0036] The rotating shaft of the rotating motor 222 rotates to drive the driving gear 223 to rotate. During the rotation process, the driving gear 223 drives the driven gear 224 to rotate through the connecting gear 225, thereby driving the reaming cutter 4 to rotate so as to be able to perform reaming processing on the surface of the workpiece. The telescopic rod of the lifting cylinder extends to drive the tool disc 3 and a plurality of reaming cutters 4 to descend, so that a plurality of reaming cutters 4 perform reaming processing on the surface of the workpiece, and at the same time, the chip removal tool sleeve 8 abuts against the surface of the workpiece. After the reaming processing of the workpiece surface is completed, the reaming cutter 4 extends from the workpiece, and the chip removal tool sleeve 8 cleans the iron slag wrapped around the reaming cutter 4 under the action of the spring 6. In this way, the multi-head drill reaming and chip removal tool can automatically clean the iron slag wrapped around the reaming cutter 4, saving manpower and improving installation performance.

[0037] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all protected by the utility model.

Claims

1. A multi-head drilling and hole enlarging chip removal tool, characterized in that: It includes a frame, a power device, a plurality of reaming knives and a tool disc for mounting the reaming knives, wherein the plurality of reaming knives are evenly distributed around the bottom surface of the tool disc and are rotatably connected to the tool disc; The power device is arranged on the frame, and the power device comprises a lifting assembly and a rotating assembly, wherein the rotating assembly is fixedly arranged on the tool disc and drives each reaming cutter to rotate, and the lifting assembly drives the rotating assembly and the tool disc to rise and fall; A fixing plate for fixing the end of a spring is provided at the bottom end of the tool disc, and springs are sleeved on the periphery of several of the reaming knives, one end of several of the springs is fixed to the fixing plate, and a chip removal tool sleeve is provided on the other end of several of the springs. Each of the reaming knives is passed through the chip removal tool sleeve, and the chip removal tool sleeve drives the iron slag on the periphery of the reaming knife to fall off under the action of the spring.

2. A multi-head drilling and hole enlarging and chip removal tool according to claim 1, characterized in that: The rotating assembly is configured as a motor gear box, including a housing, a rotating motor, a driving gear, a plurality of driven gears and a plurality of connecting gears. Each of the driven gears is respectively mounted and fixed to each reaming cutter. The driving gear is fixedly arranged on the rotating shaft of the rotating motor. The connecting gears are respectively meshed with the driving gear and the driven gear. The driving gear rotates through the connecting gear to drive the driven gear to rotate.

3. A multi-head drilling and hole enlarging and chip removal tool according to claim 2, characterized in that: A mounting ring is fixedly provided at one end of the spring away from the fixed plate, a lower hole sleeve is provided between the spring and the chip removal sleeve, the surface of the lower hole sleeve is threaded, and the two ends of the lower hole sleeve are respectively threadedly connected to the mounting ring and the chip removal sleeve.

4. A multi-drill hole enlarging and chip removal tool according to claim 2, characterized in that: The tool disc includes a disc body and a plurality of fixing rods, wherein the fixing rods are evenly distributed along the circumference of the surface of the disc body, and the surface of the fixing rods is provided with mounting holes, and one end of the reaming knife is inserted into the mounting hole and detachably mounted between the driven gear.

5. A multi-drill hole enlarging and chip removal tool according to claim 4, characterized in that: A mounting piece is fixedly provided at the bottom end of the driven gear, a mounting groove is provided at the bottom end of the mounting piece, a mounting handle is provided at the top end of the reaming knife, a thickness dimension of the mounting handle is set to "L", a width dimension of the mounting groove is set to "D", and L>D is satisfied, and the mounting handle is embedded in the mounting groove.

6. The multi-drill hole enlarging and chip removal tool according to claim 1, characterized in that: The lifting assembly is configured as a lifting cylinder, which is vertically fixed on a frame, and a telescopic rod of the lifting cylinder is fixed to a rotating assembly.

7. The multi-drill hole enlarging and chip removal tool according to claim 1, characterized in that: It also includes a workpiece platform, which is located at the bottom end of a plurality of reaming knives. A positioning plate is arranged on the workpiece platform, and the center hole of the workpiece is sleeved on the periphery of the positioning plate.

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