Grinding machine with grinding disc convenient to replace

Abstract

The utility model relates to the technical field of dull polish machines, and solves the problems that a dull polish disc is not easy to disassemble due to pure use of bolt connection, and an operator needs to spend a long time to disassemble and assemble the dull polish disc. The dull polish machine comprises a dull polish machine shell, one end of the dull polish machine shell is connected with an external electric drill, an auxiliary handle is connected to the dull polish machine shell which is different from the connecting face of the electric drill, and the lower end of the dull polish machine shell is connected with a dull polish machine end. The dull polish machine end comprises a connecting body and a protective cover which are installed at the lower end of a dull polish machine shell, the protective cover is connected to the connecting body in a clamped mode and extends downwards to generate a shielding cavity, and a sand disc acting on the surface of an object to be polished is installed in the shielding cavity. A connecting end is arranged on the connecting body and extends into the shielding cavity to be connected with a connecting disc arranged on the bottom face of the sand disc.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sanding machine technical field, concretely is a sanding machine convenient to replace sanding disc. BACKGROUND

[0002] The electroplating product needs to use the polishing machine to process in the process of production, thereby can make the electroplating product reach the purpose of removing paint surface pollution, oxide layer, shallow mark.

[0003] The existing polishing machine still has some problems in the process of using: when the operator needs to replace the sanding disc, simply using bolt connection leads to the sanding disc not easy to disassemble, and then the operator needs to spend a long time to disassemble, and it is more troublesome to fix the sanding disc in the process of installing the sanding disc. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a sanding machine convenient to replace sanding disc, solves the problem that simply using bolt connection leads to the sanding disc not easy to disassemble, and then the operator needs to spend a long time to disassemble.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sanding machine convenient to replace sanding disc, including sanding machine shell, the one end of sanding machine shell is connected with the electric drill of outside intervention, the sanding machine shell on the electric drill connection surface is connected with the auxiliary handle of different surfaces, and the sanding machine end is connected with the sanding machine end at the lower end of sanding machine shell;

[0006] The sanding machine end includes the connecting body and the protective cover installed at the lower end of the sanding machine shell, the protective cover is clamped on the connecting body and extends downward to form a shielding cavity, a sanding disc for acting on the surface of the object to be polished is installed in the shielding cavity, and a connecting end head is arranged on the connecting body and extends into the shielding cavity and is connected with a connecting disc arranged on the bottom surface of the sanding disc.

[0007] In one embodiment, the connecting body includes a transmission rod connected with the electric drill and extending the torque of the electric drill to the connecting end head, and a handle mounting hole for mounting the auxiliary handle is arranged on the mounting position of the auxiliary handle.

[0008] The connecting end head includes an inner disc and a central shaft arranged at the center of the inner disc and connected with the transmission rod, a cross-shaped inner groove is formed in the central shaft, and an annular connecting inner hole is formed in the inner disc.

[0009] In one embodiment, the connecting disc is arranged at the bottom of the sanding disc and includes a pad and a bolt penetrating the pad and extending to the inner hole of the inner disc, the bolts are connected by a connecting plate, a central shaft adapted to the central shaft is arranged at the center position of the connecting plate, and a lug plate is protruded on the central shaft.

[0010] In one of the embodiments, the protective cover is arranged in a semicircular shape, and an annular clamping member is arranged on the cover body, which comprises two clamping arms symmetrically arranged in front and back, and the clamping width is defined by bolts between the two clamping arms.

[0011] In one of the embodiments, the diameter of the middle shaft is equal to the diameter of the center shaft, and the opening depth of the inner groove is matched with the protruding height of the convex plate on the middle shaft.

[0012] In one of the embodiments, a preset mounting hole is arranged on the sanding machine shell relative to the mounting surface of the handle mounting hole, and the diameter of the preset mounting hole is equal to the diameter of the handle mounting hole.

[0013] Compared with the prior art, the sanding machine with the sanding disc convenient to replace has the following beneficial effects:

[0014] In the technical scheme disclosed by the utility model, the connection between the connecting disc arranged at the bottom of the sanding disc and the connecting end head saves the threaded butt joint of the middle shaft and the center shaft, changes the point position determination and threaded connection of the four bolts, ensures the connection between the sanding disc and the sanding machine as a whole under the premise of accurate determination, and then changes the number of bolts that need to be disassembled or screwed during the disassembly of the sanding disc, so that the sanding disc can be replaced better and more efficiently.

[0015] By arranging the handle mounting hole on the sanding machine shell and the auxiliary handle on the handle mounting hole, when the sanding machine needs to be forced, the electric drill and the auxiliary handle can be held, and then the gravity can be dispersed, so that the stability during holding is increased. DETAILED DESCRIPTION

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a whole shaft side structure schematic view of the utility model;

[0019] Figure 3 It is a sanding machine end head structure schematic view of the utility model;

[0020] Figure 4 It is a whole structure half-section schematic view of the utility model;

[0021] Figure 5 It is a connecting end head structure schematic view of the utility model.

[0022] In the figure: 1, the sanding machine shell; 2, electric drill; 3, auxiliary handle; 4, sanding machine end; 41, connecting body; 42, protective cover; 43, sand disc; 44, connecting end; 441, inner disc; 442, central shaft; 443, inner groove; 45, connecting disc; 451, pad plate; 452, central shaft; 46, transmission rod; 47, handle mounting hole; 5, preset mounting hole. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0025] Figures 1-5 For an embodiment of the present application, the specific problem addressed by the specific embodiment is that: the existing polishing machine still has some problems in use: when the operator needs to replace the sanding disc 43, the sanding disc 43 is not easy to disassemble, which requires the operator to spend a long time for disassembly, thereby reducing the work efficiency of the operator, and at the same time, it is more troublesome to fix the sanding disc 43 during installation. Therefore, a polishing machine for conveniently replacing the sanding disc 43 is proposed. In view of the above, the present scheme proposes a sanding machine for conveniently replacing the sanding disc 43, which utilizes the connection of the connecting disc 45 provided at the bottom of the sanding disc 43 and the connecting end 44, first saves the threaded butt joint of the central shaft 452 and the central shaft 442, and changes it to the point position determined by the four surrounding bolts and the threaded connection, which also ensures the connection of the sanding disc 43 and the whole sanding machine under the premise of determining the alignment, and then changes the number of bolts that need to be disassembled or screwed during disassembly of the sanding disc 43, which can better and more efficiently replace the sanding disc 43.

[0026] The specific embodiment of the sander with replaceable abrasive disc 43 comprises a sander housing 1, an external intervention electric drill 2 connected to one end of the sander housing 1, an auxiliary handle 3 connected to the sander housing 1 opposite the electric drill 2, a sander head 4 connected to the lower end of the sander housing 1, the sander head 4 comprising a connecting body 41 and a protective cover 42 installed at the lower end of the sander housing 1, the connecting body 41 comprising a transmission rod 46 connected to the electric drill 2 and extending the torque of the electric drill 2 to the connecting head 44, the transmission rod 46 being a straight bevel gear, the torque transmission line being right-angled, one end of the transmission rod 46 being connected to the electric drill 2 to transmit force to another bevel gear, the force extending the bevel gear line downward to the connecting head 44 to drive the connecting head 44 to rotate, the protective cover 42 being clamped to the connecting body 41 and extending downward to form a shielding cavity, the protective cover 42 being semi-circular, an annular clamping member being installed on the protective cover 42, comprising two symmetrical clamping arms, the two clamping arms being connected by bolts to limit the clamping width, an abrasive disc 43 being installed in the shielding cavity to act on the surface of the object to be polished, the connecting head 44 being installed on the connecting body 41 and extending into the shielding cavity to connect with the connecting disc 45 on the bottom surface of the abrasive disc 43.

[0027] The auxiliary handle 3 is installed at the handle mounting hole 47 for the installation of the auxiliary handle 3, when the sander needs to be forced, the electric drill 2 and the auxiliary handle 3 are held by hand to disperse the gravity and increase the stability when holding the sander. A preset mounting hole 5 is provided on the mounting surface opposite the handle mounting hole 47 of the sander housing 1, the diameter of the preset mounting hole 5 is equal to that of the handle mounting hole 47. The preset mounting hole 5 is provided to reserve the auxiliary handle 3 when needed, thereby generating more external force to increase the stability of the auxiliary sander wheel during processing.

[0028] The connecting head 44 comprises an inner disc 441 and a central shaft 442 provided at the center of the inner disc 441 and connected to the transmission rod 46, the central shaft 442 is provided with a cross-shaped inner groove 443, and the inner disc 441 is provided with an annular connecting inner hole. The connecting disc 45 is provided at the bottom of the abrasive disc 43, comprising a pad 451 and a bolt extending through the pad 451 to the inner hole of the inner disc 441, the bolts are connected by a connecting plate, a central shaft 452 is provided on the center of the connecting plate and is adapted to the central shaft 442, and a protruding plate is provided on the central shaft 452. The diameter of the central shaft 452 is equal to that of the central shaft 442, and the depth of the inner groove 443 and the protruding height of the protruding plate on the central shaft 452 are adapted. First, the alignment of the central shaft 452 and the central shaft 442 can be used to determine the accuracy of the connection, and then the connection of the pad 451 and the inner disc 441 is completed by rotating the bolt installed on the connecting plate, that is, the connection of the connecting head 44 and the connecting disc 45, and under the driving of the transmission rod 46, the connecting head 44 is rotated.

[0029] The control mode of the utility model is automatic control through the controller, the control circuit of the controller can be realized through simple programming of the technical personnel in the field, the provision of the power supply also belongs to the common knowledge in the field, and the utility model is mainly used for protecting the mechanical device, so the utility model will not explain the control mode and the circuit connection in detail.

[0030] It should be noted that in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sander for facilitating replacement of a sanding disc (43) comprising a sander housing (1), characterised in that: The outer intervention electric drill (2) is connected to one end of the sander shell (1), the auxiliary handle (3) is connected to the sander shell (1) opposite to the connection surface of the electric drill (2), and the sander end (4) is connected to the lower end of the sander shell (1); The sander end (4) comprises a connecting body (41) and a protective cover (42) installed at the lower end of the sander shell (1), the protective cover (42) is clamped on the connecting body (41) and extends downward to form a shielding cavity, a sanding disc (43) is installed in the shielding cavity and acts on the surface of the object to be polished, and a connecting end (44) is arranged on the connecting body (41) and extends into the shielding cavity and is connected with a connecting disc (45) arranged on the bottom surface of the sanding disc (43).

2. A sander according to claim 1, characterized in that: The connecting body (41) comprises a transmission rod (46) connected with the electric drill (2) and extending the torque of the electric drill (2) to the connecting end (44), and a handle mounting hole (47) is arranged on the mounting position of the auxiliary handle (3) for mounting the auxiliary handle (3); The connecting end (44) comprises an inner disc (441) and a central shaft (442) arranged at the center of the inner disc (441) and connected with the transmission rod (46), the central shaft (442) is provided with a cross-shaped inner groove (443), and the inner disc (441) is provided with an annular connecting inner hole.

3. A sander according to claim 1, characterized in that: The connecting disc (45) is arranged at the bottom of the sanding disc (43) and comprises a pad (451) and a bolt extending through the pad (451) and connected with the inner hole of the inner disc (441), a plurality of bolts are connected through a connecting plate, a central shaft (452) adapted to the central shaft (442) is arranged at the center position of the connecting plate, and a lug plate is protruded on the central shaft (452).

4. A sander according to claim 1, characterized in that: The protective cover (42) is arranged in a semicircular shape, an annular clamping member is arranged on the cover body of the protective cover (42), the annular clamping member comprises two clamping arms symmetrically arranged in front and back, and the clamping width is limited by the bolts between the two clamping arms.

5. A sander according to claim 3, wherein: The diameter of the central shaft (452) is equal to the diameter of the central shaft (442), and the opening depth of the inner groove (443) and the protruding height of the lug plate on the central shaft (452) are matched.

6. A sander according to claim 2, wherein: With respect to the mounting surface of the handle mounting hole (47), a preset mounting hole (5) is arranged on the sander shell (1), and the diameter of the preset mounting hole (5) is equal to that of the handle mounting hole (47).

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