Double-dynamic balancing instrument mounting structure for electric main shaft of cylindrical grinding wheel

Abstract

The utility model relates to a double-dynamic balancing instrument mounting structure for an electric spindle of a cylindrical grinding wheel. Comprising a sliding plate, a torque turntable, a box body, an electric spindle, a grinding wheel and a dynamic balancing instrument, the torque turntable is mounted on the sliding plate; the box body is mounted on the torque turntable; two groups of electric spindles capable of rotating forwards and backwards are mounted in the box body; the front ends of the two groups of electric spindles are connected with corresponding grinding wheels through grinding wheel chucks; and the rear ends of the two groups of motorized spindles are connected with corresponding dynamic balancing instruments through dynamic balancing connecting discs. The technical problems that in the prior art, an electric spindle dynamic balancing instrument of an outer circle grinding wheel is installed on the front portion of the outer circle grinding wheel, namely on a grinding wheel chuck, and meanwhile a common outer circle grinding wheel box body is only provided with one electric spindle of the outer circle grinding wheel (the grinding wheel can only rotate forwards or reversely), so that only one dynamic balancing instrument can be installed are solved.

Description

Technical Field

[0001] The utility model relates to the field of dynamic balancers, in particular to an installation structure of a double dynamic balancer for an external circular grinding wheel electric spindle. Background Art

[0002] A dynamic balancer is used to detect and feedback the rotation accuracy of a grinding wheel in real time when an external circular grinding wheel electric spindle rotates: namely, the roundness runout. The traditional dynamic balancer for an external circular grinding wheel electric spindle is installed at the front of the external circular grinding wheel, that is, installed on the grinding wheel chuck. Generally, only one external circular grinding wheel electric spindle is assembled in an external circular grinding wheel box body (the grinding wheel can only rotate in one forward or reverse direction), so only one dynamic balancer can be installed. Summary of the Utility Model

[0003] By providing an installation structure of a double dynamic balancer for an external circular grinding wheel electric spindle, the embodiment of the present application solves the technical problem in the prior art solution that the dynamic balancer for an external circular grinding wheel electric spindle is installed at the front of the external circular grinding wheel, that is, installed on the grinding wheel chuck, and generally, only one external circular grinding wheel electric spindle is assembled in an external circular grinding wheel box body (the grinding wheel can only rotate in one forward or reverse direction), so only one dynamic balancer can be installed.

[0004] The technical solution adopted in the embodiment of the present application is as follows:

[0005] An installation structure of a double dynamic balancer for an external circular grinding wheel electric spindle includes a slide plate, a torque turntable, a box body, an electric spindle, a grinding wheel and a dynamic balancer; the torque turntable is installed on the slide plate; the box body is installed on the torque turntable; two groups of electric spindles that can rotate forward and backward are installed inside the box body; the front ends of the two groups of electric spindles are respectively connected with the corresponding grinding wheels through grinding wheel chucks; the rear ends of the two groups of electric spindles are respectively connected with the corresponding dynamic balancers through dynamic balance connection plates.

[0006] A further technical solution is that the installation structure of the double dynamic balancer for the external circular grinding wheel electric spindle further includes a grinding wheel cover shell, a dynamic balancer cover shell and a top cover shell; the grinding wheel cover shell is installed at the front end of the box body and is used for wrapping the grinding wheel; the dynamic balancer cover shell is installed at the rear end of the box body; the top cover shell is installed at the top of the box body.

[0007] One or more technical solutions provided in the embodiment of the present application have at least the following technical effects or advantages:

[0008] 1. Due to the settings of the skateboard, torque turntable, box body, electric spindle, grinding wheel, and dynamic balancer, the dynamic balancer is installed at the rear side of the electric spindle instead of on the grinding wheel chuck at the front side of the electric spindle. This achieves the weight balance on the front and rear sides of the electric spindle (there is a grinding wheel chuck and a grinding wheel on the front side, and a dynamic balance adapter plate and a dynamic balancer on the rear side, and their weights roughly cancel each other out), overcoming the problem of gravity sag on the front end face. Therefore, the grinding rigidity of the grinding wheel will be greatly enhanced. Since the dynamic balancer is installed at the rear side, it avoids the problem of interference between the grinding wheel and the workbench during oblique cutting grinding when the dynamic balancer is installed on the front side grinding wheel chuck. Compared with traditional cylindrical grinders, a torque turntable is added at the bottom of the box body, which allows the grinding wheel to stop at any angle, meeting the diversity of grinding processes. At the same time, two electric spindles are installed in the box body, so two grinding wheels are equipped. The two grinding wheels can be used for rough grinding and fine grinding separately, and straight cutting grinding and oblique cutting grinding of the grinding wheels can be separated. Dynamic balancers are installed on both electric spindles to ensure accuracy. At the same time, the wiring of the two dynamic balancers is centralized and routed through the middle uniformly, which is standard and beautiful. Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of an installation structure of a double dynamic balancer for an external cylindrical grinding wheel electric spindle in an embodiment of the present invention.

[0010] Figure 2 It is a partial structure schematic diagram for reflecting the positional relationship between the electric spindle and the dynamic balancer in an embodiment of the present invention.

[0011] Figure 3 It is a partial structure schematic diagram for reflecting the positional relationship between the grinding wheel chuck and the grinding wheel in an embodiment of the present invention.

[0012] In the figure: 1. Skateboard; 2. Torque turntable; 3. Box body; 4. Electric spindle; 5. Grinding wheel; 6. Dynamic balancer; 7. Grinding wheel housing; 8. Dynamic balancer housing; 9. Top housing. Detailed Implementation Modes

[0013] By providing an installation structure of a double dynamic balancer for an external cylindrical grinding wheel electric spindle in an embodiment of the present application, the technical problem in the prior art solution that the dynamic balancer of the external cylindrical grinding wheel electric spindle is installed at the front of the external cylindrical grinding wheel, that is, on the grinding wheel chuck, and generally only one external cylindrical grinding wheel electric spindle is assembled in the external cylindrical grinding wheel box body (the grinding wheel can only rotate in one forward or reverse direction), so only one dynamic balancer can be installed, is solved.

[0014] The overall idea of the technical solution in the embodiment of the present application to solve the above problems is as follows:

[0015] To better understand the above technical solution, the above technical solution will be described in detail below in combination with the drawings of the specification and specific implementation modes.

[0016] An installation structure of a double dynamic balancer for an external cylindrical grinding wheel electric spindle, as Figure 1 , Figure 2 and Figure 3 shown, includes a slide plate 1, a torque turntable 2, a box body 3, an electric spindle 4, a grinding wheel 5, and a dynamic balancer 6. The torque turntable 2 is installed on the slide plate 1. The box body 3 is installed on the torque turntable 2. Two sets of electric spindles 4 that can rotate forward and backward are installed inside the box body 3. Corresponding grinding wheels 5 are connected to the front ends of the two sets of electric spindles 4 through grinding wheel chucks. Corresponding dynamic balancers 6 are connected to the rear ends of the two sets of electric spindles 4 through dynamic balance connecting plates.

[0017] This installation structure of the double dynamic balancer for the external cylindrical grinding wheel electric spindle further includes a grinding wheel housing 7, a dynamic balancer housing 8, and a top housing 9. The grinding wheel housing 7 is installed at the front end of the box body 3 and is used to wrap the grinding wheel 5. The dynamic balancer housing 8 is installed at the rear end of the box body 3. The top housing 9 is installed at the top of the box body 3.

[0018] The torque turntable 2 is installed at the top of the slide plate 1, and the box body 3 is installed at the top of the torque turntable 2, and the two are connected by a disc flange. The torque turntable 2 has sufficient rigidity and torque to drive the box body 3 to rotate 360° in any forward or reverse angle. Two electric spindles 4 that can rotate forward and backward are installed inside the box body 3. The front end of the electric spindle 4 is connected to the grinding wheel 5 through a grinding wheel chuck. The grinding wheel housing 7 assembly is installed on the side of the front end face of the box body 3 to wrap the grinding wheel 5 and prevent it from splashing out during the rotation of the grinding wheel 5. The rear end of the electric spindle 4 is connected to the dynamic balancer 6 through a dynamic balance connecting plate. The dynamic balancer housing 8 is installed on the side of the rear end face of the box body 3. The wire of the dynamic balancer 6 passes through the left and right connections of the dynamic balancer housing 8 and penetrates the top housing 9 (there are holes on the side and the top of the top housing 9, and the wire passes through from the inside), and finally is connected to the inner top surface of the sheet metal top housing 9 (directly above the box body) through a top rotating drag chain. In this way, when the torque turntable 2 rotates, the wire of the dynamic balancer 6 will not get entangled.

[0019] Due to the settings of the skateboard 1, torque turntable 2, box body 3, electric main shaft 4, grinding wheel 5 and dynamic balancer 6, the dynamic balancer 6 is installed at the rear side of the electric main shaft 4, rather than on the grinding wheel chuck at the front side of the electric main shaft 4. This achieves the balance of the front and rear sides of the electric main shaft 4 (there is a grinding wheel chuck and grinding wheel 5 at the front side, and a dynamic balance adapter plate and dynamic balancer 6 at the rear side, and their weights roughly offset each other), overcoming the problem of the gravity sag of the front end face. Therefore, the grinding rigidity of the grinding wheel 5 will be greatly enhanced. Since the dynamic balancer 6 is installed at the rear side, it avoids the problem that when the dynamic balancer 6 is installed on the front side grinding wheel chuck, the grinding wheel 5 will interfere with the workbench during oblique cutting grinding. Compared with the traditional cylindrical grinder, a torque turntable 2 is added to the bottom of the box body 3, which can stop the grinding wheel 5 at any angle, meeting the diversity of grinding processes. At the same time, two electric main shafts 4 are installed in the box body 3, so two grinding wheels 5 are equipped. The two grinding wheels 5 can perform rough grinding and fine grinding separately, and the straight cutting grinding and oblique cutting grinding of the grinding wheels 5 are separated. Dynamic balancers 6 are installed on both electric main shafts 4, ensuring the accuracy. At the same time, the wiring of the two dynamic balancers 6 is centralized and routed through the middle uniformly, which is standard and beautiful.

[0020] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0021] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. An installation structure of a double-acting balancer for an external cylindrical grinding wheel electric spindle, characterized in that, It includes a skateboard (1), a torque turntable (2), a box body (3), an electric spindle (4), a grinding wheel (5) and a dynamic balancer (6); the torque turntable (2) is installed on the skateboard (1); the box body (3) is installed on the torque turntable (2); two groups of the electric spindles (4) that can rotate forward and backward are installed inside the box body (3); the front ends of the two groups of the electric spindles (4) are respectively connected with the corresponding grinding wheels (5) through grinding wheel chucks; the rear ends of the two groups of the electric spindles (4) are respectively connected with the corresponding dynamic balancers (6) through dynamic balance adapter plates.

2. The installation structure of a double-acting balancing instrument for an external cylindrical grinding wheel electric spindle according to claim 1, characterized in that, The installation structure of the double dynamic balancers for the external cylindrical grinding wheel electric spindle further includes a grinding wheel cover (7), a dynamic balancer cover (8) and a top cover (9); the grinding wheel cover (7) is installed at the front end of the box body (3) and is used for wrapping the grinding wheel (5); the dynamic balancer cover (8) is installed at the rear end of the box body (3); the top cover (9) is installed at the top of the box body (3).

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