Photosensitive resin post-processing random grinding machine

Abstract

The utility model discloses a photosensitive resin post-processing random grinding machine which comprises a rotating head, the rotating head is used for driving a curved surface grinding head to rotate, a gum magic tape is attached to the curved surface grinding head, the curved surface grinding head is connected with grinding abrasive paper through the gum magic tape, and limiting structures are arranged on the two sides of the rotating head. On the basis of an existing pneumatic grinding machine, the position of the pneumatic grinding head is mainly improved, the grinding head plane, bonded with grinding abrasive paper, of the pneumatic grinding head is replaced with a curved-surface magic head obtained through 3D printing, and therefore the curved-surface, semi-closed and inwards-concave structures can be well attached, and meanwhile a limiting structure of 3D printing can limit the grinding depth and prevent excessive grinding; after the random grinding machine is used, the residual part of the process reinforcing rib on the rear surface of a product can be ground by the grinding machine instead of being ground manually, so that the production efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photosensitive resin processing, in particular to a photosensitive resin post-processing profile grinding machine. Background Art

[0002] The existing photosensitive resin investment mold grinding is done with ordinary pneumatic grinding heads. Especially when processing parts with process reinforcement ribs, it is necessary to first use diagonal pliers to cut off the main part of the reinforcement ribs, and then use a pneumatic grinder to grind the remaining parts. When the pneumatic grinder is grinding, connect the air circuit to the rear end interface of the grinder body, hold the handle, and place the grinding head above the part. Under the action of high-pressure gas, the pneumatic grinding head starts to vibrate and grind until the grinding is completed.

[0003] Photosensitive resin parts have many special-shaped curved surfaces, and process reinforcement ribs are often connected to the curved surfaces. Since the existing grinding machine grinding head is a flat grinding head, the residual reinforcement ribs on the curved surface structure often cause grinding defects on the part body. For many semi-enclosed structures and concave structures, it is impossible to use a flat grinding head for grinding. Therefore, most photosensitive resin parts are still processed by manual sandpaper grinding, which greatly affects production efficiency. Utility Model Content

[0004] The purpose of the utility model is to improve and innovate the shortcomings and problems existing in the background technology, and to provide a photosensitive resin post-processing follow-up grinding machine.

[0005] A post-processing sander for photosensitive resin comprises an air compressor and an air motor, wherein an air outlet end of the air compressor is fixedly connected with an air outlet pipe, an air inlet head is arranged on the air motor, and the air outlet pipe is connected with the air inlet head through a connecting hose, an impeller opposite to the air inlet head is arranged inside the air motor, the impeller is mounted on a rotor, and the rotor is fixedly connected with a rotating rod through a coupling, and an end of the rotating rod away from the coupling passes through the air motor and is rotatably connected with the air motor through a bearing, and then can be detachably connected with a rotating head, the rotating head is used to drive a curved grinding head to rotate, a Velcro with an adhesive backing is attached to the curved grinding head, and a grinding sandpaper is connected with the Velcro with an adhesive backing, and limiting structures are arranged on both sides of the rotating head.

[0006] A further solution is that the rotating head and the limiting structure both include a fixed sleeve, a connecting rod is clamped in the fixed sleeve by a clamping mechanism, the curved grinding head is installed at the end of the connecting rod corresponding to the rotating head, and the end of the connecting rod corresponding to the limiting structure is fixedly connected to the limiting curved plate.

[0007] A further solution is that the clamping mechanism includes a first groove opened on the fixed sleeve, a second groove connected to the first groove is opened on the side wall of the first groove, the first groove is adapted to the connecting rod, a support plate is installed on the outer surface of the fixed sleeve, a bearing seat is installed on the support plate, a threaded sleeve is rotatably connected to the bearing seat, a threaded rod is threadedly connected to the inner surface of the threaded sleeve, one end of the threaded rod passes through the outer wall of the fixed sleeve and extends to the second groove and is fixedly connected to the clamping plate, a slider is fixedly connected to the clamping plate, and the slider slidably cooperates with the sliding groove opened on the bottom wall of the second groove.

[0008] A further solution is that a rubber pad is installed on a side of the clamping plate away from the threaded rod.

[0009] A further solution is that a second hand-held rod is fixedly connected to the outer surface of the threaded sleeve.

[0010] A further solution is that a first hand-held rod is fixedly connected to the outer surface of the pneumatic motor.

[0011] A further solution is that a regulating valve is provided on the air intake head, and the regulating valve may be a ball valve or a gate valve.

[0012] A further solution is that the air compressor is installed on a base, and walking wheels are provided at the four corners of the lower surface of the base.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Based on the existing pneumatic grinder, the present invention mainly improves the pneumatic grinding head, and replaces the grinding head plane of the pneumatic grinding head bonded with the sandpaper with a curved magic head obtained by 3D printing, so that it can fit the curved surface, semi-enclosed and concave structure well. At the same time, the limiting structure of 3D printing can limit the grinding depth and prevent excessive grinding. After using the portable grinder of the present invention, the residual part of the process reinforcement ribs on the rear surface of the product can be polished by the grinder instead of manual polishing, which can greatly improve production efficiency;

[0014] (2) The utility model drives the threaded sleeve to rotate by holding the second holding rod, thereby driving the threaded rod to move along its axial direction, and then driving the clamping plate to move away from or close to the connecting rod; when the clamping plate is close to the connecting rod, it is convenient to fix the connecting rod on the fixing sleeve, so that the rotating head drives the curved grinding head to rotate; when the clamping plate is away from the connecting rod, it is convenient to replace the curved grinding head designed according to the characteristic structure of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the structure of the device provided by the embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the structure of a rotating head and a curved magic head provided by an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the limiting structure provided by an embodiment of the utility model;

[0019] Figure numerals: base 1, air compressor 2, air inlet pipe 3, electric motor 4, linkage device 5, air outlet pipe 6, connecting hose 7, air inlet head 8, regulating valve 9, pneumatic motor 10, first handle bar 11, impeller 12, rotor 13, coupling 14, rotating rod 15, connecting rod 16, curved grinding head 17, grinding sandpaper 18, limiting curved plate 19, fixing sleeve 20, first groove 21, clamping plate 22, slider 23, slide groove 24, second groove 25, threaded rod 26, support plate 27, bearing seat 28, threaded sleeve 29, second handle bar 30. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] See also Figure 1-Figure 3The utility model provides a post-processing sander for photosensitive resin, comprising a base 1, and walking wheels are arranged at the four corners of the lower surface of the base 1. An air compressor 2 is installed on the base 1, and the air compressor 2 is connected to the motor 4 through a linkage device 5. The air inlet end of the air compressor 2 is fixedly connected to an air inlet pipe 3, and the air outlet end of the air compressor 2 is fixedly connected to an air outlet pipe 6. An air filter can be arranged on the air inlet pipe 3 to remove dust and impurities in the air. The air outlet pipe 6 is connected to an air inlet head 8 through a connecting hose 7, and the air inlet head 8 is arranged on a pneumatic motor 10. A regulating valve 9 is arranged on the air inlet head 8, and the regulating valve 9 can be a ball valve or a gate valve. The air flow rate of the air inlet head 8 can be adjusted by the regulating valve 9.

[0024] The pneumatic motor 10 is provided with an impeller 12 facing the air inlet head 8. The impeller 12 is mounted on the rotor 13. The rotor 13 is fixedly connected to a rotating rod 15 through a coupling 14. The end of the rotating rod 15 away from the coupling 14 passes through the pneumatic motor 10 and is rotatably connected to the pneumatic motor 10 through a bearing, and then can be detachably connected to a rotating head. The rotating head is used to drive the curved grinding head 17 to rotate. The curved grinding head 17 is attached with a backing Velcro, and is connected to a grinding sandpaper 18 through the backing Velcro. A limiting structure is provided on both sides of the rotating head. The curved grinding head 17 and the limiting structure are obtained by 3D printing. It can be understood that the curved magic head 17 obtained by 3D printing can be well fitted with the curved surface, semi-enclosed and concave structure of the photosensitive resin melt mold. At the same time, the limiting structure of 3D printing can limit the grinding depth and prevent excessive grinding. Compared with manual grinding, the utility model of the portable grinding machine can greatly improve production efficiency.

[0025] It should be noted that, in order to allow air to smoothly enter the pneumatic motor 10 , an exhaust pipe is also provided on the pneumatic motor 10 . The exhaust pipe is located behind the impeller 12 , and the exhaust pipe is not shown in the figure.

[0026] Specifically, the rotating head and the limiting structure both include a fixed sleeve 20, in which a connecting rod 16 is clamped by a clamping mechanism. The curved grinding head 17 is installed at the end of the connecting rod 16 corresponding to the rotating head, and the end of the connecting rod 16 corresponding to the limiting structure is fixedly connected to a limited curved plate 19. The clamping mechanism includes a first groove 21 formed on a fixed sleeve 20, a second groove 25 communicating with the first groove 21 is formed on a side wall thereof, the first groove 21 is adapted to the connecting rod 16, a support plate 27 is installed on the outer surface of the fixed sleeve 20, a bearing seat 28 is installed on the support plate 27, a threaded sleeve 29 is rotatably connected to the bearing seat 28, a second hand-held rod 30 is fixedly connected to the outer surface of the threaded sleeve 29, a threaded rod 26 is threadedly connected to the inner surface of the threaded sleeve 29, one end of the threaded rod 26 penetrates through the outer wall of the fixed sleeve 20 and then extends to the second groove 25 and then is fixedly connected to the clamping plate 22, a slider 23 is fixedly connected to the clamping plate 22, and the slider 23 slidably cooperates with a slide groove 24 formed on the bottom wall of the second groove 25. It can be understood that by holding the second handle 30, it is convenient to drive the threaded sleeve 29 to rotate. Since the slider 23 and the slide groove 24 slide together, the threaded rod 26 cannot rotate, thereby driving the threaded rod 26 to move along its axial direction, and then driving the clamping plate 22 away from or close to the connecting rod 16; when the clamping plate 22 is close to the connecting rod 16, it is convenient to fix the connecting rod 16 on the fixed sleeve 20, so that the rotating head drives the curved grinding head 17 to rotate; when the clamping plate 22 is away from the connecting rod 16, it is convenient to replace the curved grinding head designed according to the characteristic structure of the part.

[0027] Preferably, a rubber pad is installed on a side of the clamping plate 22 away from the threaded rod 26 .

[0028] Preferably, a first hand-held rod 11 is fixedly connected to the outer surface of the pneumatic motor 10 .

[0029] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The phrase appearing in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A photosensitive resin post-processing grinding machine, characterized in that: The invention comprises an air compressor (2) and an air motor (10), wherein an air outlet end of the air compressor (2) is fixedly connected to an air outlet pipe (6), an air inlet head (8) is arranged on the air motor (10), the air outlet pipe (6) is connected to the air inlet head (8) via a connecting hose (7), an impeller (12) is arranged inside the air motor (10) and is directly opposite to the air inlet head (8), the impeller (12) is mounted on a rotor (13), the rotor (13) is fixedly connected to a rotating rod (15) via a coupling (14), one end of the rotating rod (15) away from the coupling (14) passes through the air motor (10) and is rotatably connected to the air motor (10) via a bearing, and then can be detachably connected to a rotating head, the rotating head is used to drive a curved surface grinding head (17) to rotate, a Velcro adhesive tape is attached to the curved surface grinding head (17), and a grinding sandpaper (18) is connected via the Velcro adhesive tape, and a limiting structure is arranged on both sides of the rotating head.

2. A photosensitive resin post-processing grinding machine according to claim 1, characterized in that: The rotating head and the limiting structure both comprise a fixing sleeve (20), a connecting rod (16) being clamped in the fixing sleeve (20) via a clamping mechanism, the curved surface grinding head (17) being mounted on the end of the connecting rod (16) corresponding to the rotating head, and the end of the connecting rod (16) corresponding to the limiting structure being fixedly connected to the limiting curved plate (19).

3. A photosensitive resin post-processing grinding machine according to claim 2, characterized in that: The clamping mechanism comprises a first groove (21) formed on a fixing sleeve (20), a second groove (25) connected to the first groove (21) being formed on a side wall thereof, the first groove (21) being matched with the connecting rod (16), a supporting plate (27) being mounted on the outer surface of the fixing sleeve (20), a bearing seat (28) being mounted on the supporting plate (27), a threaded sleeve (29) being rotatably connected to the bearing seat (28), a threaded rod (26) being threadedly connected to the inner surface of the threaded sleeve (29), one end of the threaded rod (26) penetrating the outer wall of the fixing sleeve (20) and then extending to the second groove (25) and then being fixedly connected to the clamping plate (22), a sliding block (23) being fixedly connected to the clamping plate (22), the sliding block (23) being slidably matched with a sliding groove (24) formed on the bottom wall of the second groove (25).

4. A photosensitive resin post-processing grinding machine according to claim 3, characterized in that: A rubber pad is installed on a side of the clamping plate (22) away from the threaded rod (26).

5. The photosensitive resin post-processing grinding machine according to claim 3, characterized in that: A second hand-held rod (30) is fixedly connected to the outer surface of the threaded sleeve (29).

6. The photosensitive resin post-processing grinding machine according to claim 1, characterized in that: A first hand-held rod (11) is fixedly connected to the outer surface of the pneumatic motor (10).

7. The photosensitive resin post-processing grinding machine according to claim 1, characterized in that: The air intake head (8) is provided with a regulating valve (9), and the regulating valve (9) may be a ball valve or a gate valve.

8. The photosensitive resin post-processing grinding machine according to claim 1, characterized in that: The air compressor (2) is mounted on a base (1), and walking wheels are provided at four corners of the lower surface of the base (1).

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