Chip blocking device for bench drill

Abstract

The utility model provides a chip blocking device for a bench drill, which relates to the technical field of bench drills and comprises a lifting type chip blocking device body, an anti-scratch window and an air curtain generating mechanism. According to the device, chippings generated in the bench drill machining process are blocked through the lifting type chipping blocking device body, the blocking height can be adjusted, the lifting type chipping blocking device body observes the bench drill machining process through the scratch-resistant window, and the scratch-resistant window improves the scratch-resistant performance; an air curtain is formed on the inner side of the anti-scratch window in cooperation with the air curtain generation mechanism, splashed chippings are blocked by the air curtain and then fall on the anti-scratch window, and the situation that the transparency is reduced due to the fact that the window is scratched is avoided through double protection.

Description

Technical Field

[0001] The utility model relates to the technical field of bench drills, in particular to a chip blocking device for bench drills. Background Art

[0002] Bench drills are mainly used for drilling, reaming, boring, tapping, and scraping surfaces of small and medium-sized parts. Bench drills use positioning fixtures to position the workpiece on it to facilitate subsequent processing.

[0003] Existing bench drill presses are generally provided with a chip protection device to shield the chips generated during bench drill processing and prevent the chips from splashing onto the workers' bodies. The chip protection device is usually provided with a window to observe the processing of the bench drill, but this window is in direct contact with the splashing chips and is easily scratched by the splashing chips. The scratched window has reduced transparency, making it inconvenient to observe the processing of the bench drill. Utility Model Content

[0004] The utility model aims to provide a chip blocking device for a bench drill, which solves the technical problem that a window on the chip blocking device is easily scratched by flying debris.

[0005] The utility model provides a chip retaining device for a bench drill, comprising:

[0006] The main body of the lifting chip guard device is U-shaped;

[0007] The lower end of the lifting type chip guard body is detachably mounted on the base of the bench drill, and the opening of the lifting type chip guard body faces the drill bit of the bench drill;

[0008] The three sides of the lifting chip guard body are equipped with anti-scratch windows;

[0009] The upper and lower edges of the inner wall of the main body of the lifting type chip blocking device are fixed with an air curtain generating mechanism, and the input end of the air curtain generating mechanism is fixedly connected to an external air supply mechanism;

[0010] The output end of the wind curtain generating mechanism exhausts air to form a wind curtain that blocks the inner wall of the lifting type chip blocking device body.

[0011] As a further optimization scheme, in order to control the lifting of the U-shaped baffle in the U-shaped slot of the U-shaped frame, the U-shaped baffle is limited and fixed by a lifting limit structure, and the lifting chip baffle body includes:

[0012] A U-shaped frame which is detachably mounted on the base of the bench drill;

[0013] The inner wall of the U-shaped frame is provided with a U-shaped slot;

[0014] A U-shaped baffle plate is longitudinally slidably inserted into the U-shaped slot;

[0015] Rectangular windows are provided on three sides of the outer wall of the U-shaped baffle;

[0016] The scratch-resistant window is glued and fixed in the rectangular window on the same side;

[0017] A lifting and limiting structure is evenly arranged between the U-shaped baffle plate and the outer wall of the U-shaped frame.

[0018] As a further optimization solution, in order to limit and fix the lifting of the U-shaped baffle in the U-shaped slot, the lifting limit structure includes:

[0019] A strip-shaped wedge-shaped chute is longitudinally opened on the outer wall of the U-shaped baffle;

[0020] A threaded rod is slidably clamped in the strip-shaped wedge-shaped sliding groove, and the outer end of the threaded rod passes through the outer wall of the U-shaped frame;

[0021] The inner threaded barrel is threadedly connected to the outer end of the threaded rod, and the inner threaded barrel abuts against the outer wall of the U-shaped frame.

[0022] As a further optimization solution, in order to facilitate the rotation operation of the internal threaded barrel, anti-slip hemp patterns are provided on the outer wall of the internal threaded barrel.

[0023] As a further optimization solution, in order to make the window wear-resistant and scratch-resistant, the scratch-resistant window includes:

[0024] A glass plate, which is glued and fixed in the rectangular window;

[0025] The glass plate is coated with a transparent adhesive layer on the side facing the drill bit of the bench drill;

[0026] A sapphire film is adhered and fixed on the transparent adhesive layer.

[0027] As a further optimization solution, in order to facilitate the control of the lifting and lowering of the U-shaped baffle in the U-shaped slot, a handle is fixedly mounted on the upper end of the outer wall of the U-shaped baffle.

[0028] As a further optimization solution, in order to make the handle more comfortable to grip, the handle includes:

[0029] A handle body, which is fixedly connected to the upper end of the outer wall of the U-shaped baffle;

[0030] An arc-shaped groove is provided on the gripping crossbar of the handle body.

[0031] As a further optimization scheme, in order to form an air curtain on three sides of the inner wall of the lifting type chip blocking device body to buffer and shield the flying debris, the air curtain generating mechanism includes:

[0032] There are six cavity cross bars, which are respectively and laterally pasted and fixed to the upper and lower edges of the three sides of the inner wall of the lifting chip guard body;

[0033] The opposite surfaces of the upper and lower cavity cross bars are evenly provided with exhaust holes along the length direction;

[0034] A connecting pipe is fixedly connected between the six cavity cross bars, and an air intake pipe is fixedly connected to the connecting pipe.

[0035] As a further optimization solution, in order to make the airflow between the six cavity cross bars smoother, the positions between the six cavity cross bars are connected end to end through a connecting pipe.

[0036] As a further optimization scheme, in order to facilitate the disassembly and installation of the lifting chip guard body and the bench drill base, a fixed connection structure is evenly installed between the lower end of the U-shaped frame and the bench drill base, which includes:

[0037] A mounting groove is provided at the upper edge of the side wall of the bench drill base;

[0038] A mounting plate is fixedly connected to the corresponding mounting groove at the lower end of the U-shaped frame, and the mounting plate is inserted into the corresponding mounting groove;

[0039] A fixing bolt is fixedly connected between the outer wall of the mounting plate and the bottom surface of the mounting groove.

[0040] The utility model provides a chip retaining device for a bench drill through improvement, which has the following improvements and advantages compared with the prior art:

[0041] The device uses a lifting chip blocking device body to block the debris generated during the bench drill processing, and the blocking height can be adjusted. The lifting chip blocking device body observes the bench drill processing process through a scratch-resistant window. The scratch-resistant window improves the scratch-resistant performance. The wind curtain generating mechanism forms a wind curtain on the inner side of the scratch-resistant window. The flying debris is blocked by the wind curtain and then falls on the scratch-resistant window. The double protection prevents the window from being scratched and causing a decrease in transparency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a schematic diagram of the structure of the utility model;

[0044] Figure 2 This is a schematic diagram of the structure of the lifting chip guard body and the handle of the utility model;

[0045] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0046] Figure 4 This is a schematic diagram of the scratch-resistant window structure of the utility model;

[0047] Figure 5 It is a schematic diagram of the structure of the wind curtain generating mechanism of the utility model.

[0048] Description of reference numerals:

[0049] 1-lifting chip guard device body, 11-U-shaped frame, 12-U-shaped slot, 13-U-shaped baffle, 14-rectangular window, 15-scratch-resistant window, 151-glass plate, 152-transparent adhesive layer, 153-sapphire film, 16-lifting limit structure, 161-strip wedge-shaped slide groove, 162-threaded rod, 163 internal threaded cylinder, 2-fixed connection structure, 21-mounting groove, 22-mounting plate, 23-fixing bolt, 3-wind curtain generating mechanism, 31-cavity cross bar, 32-connecting pipe, 33-connecting pipe, 34-inlet pipe, 4-handle piece, 41-handle body, 42-arc groove. DETAILED DESCRIPTION

[0050] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0051] In the description of the present invention, it should 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" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] See also Figure 1-5 The utility model provides a technical solution: a chip blocking device for a bench drill, comprising:

[0054] The lifting type chip guard body 1 is U-shaped, and the U-shaped shielding is on the side where the operator is located. By shielding in three directions, it is better to prevent the flying debris from injuring the operator;

[0055] The lower end of the lifting chip guard device body 1 is detachably mounted on the bench drill base, and the opening of the lifting chip guard device body 1 faces the drill bit of the bench drill. The lifting chip guard device body 1 can be easily disassembled and installed, which is convenient for inspection and maintenance;

[0056] The three sides of the lifting chip guard body 1 are equipped with anti-scratch windows 15, through which the drilling process can be observed. The anti-scratch windows 15 achieve an anti-scratch effect by increasing the hardness of the inner wall.

[0057] The upper and lower edges of the inner wall of the lifting type chip guard body 1 are fixed with a wind curtain generating mechanism 3, and the input end of the wind curtain generating mechanism 3 is fixedly connected to an external air supply mechanism, and the wind curtain generating mechanism 3 is connected to the external air supply mechanism, and the wind is evenly discharged to form a wind curtain;

[0058] The output end of the wind curtain generating mechanism 3 exhausts air to form a wind curtain that blocks the inner wall of the lifting type chip blocking device body 1 .

[0059] In some embodiments, in order to control the lifting of the U-shaped baffle 13 in the U-shaped slot 12 of the U-shaped frame 11, the U-shaped baffle 13 is limited and fixed by the lifting limit structure 16, and the lifting type chip blocking device body 1 includes:

[0060] A U-shaped frame 11, which is detachably mounted on the base of the bench drill;

[0061] The inner wall of the U-shaped frame 11 is provided with a U-shaped slot 12;

[0062] A U-shaped baffle 13 is longitudinally slidably inserted into the U-shaped slot 12;

[0063] Rectangular windows 14 are provided on three sides of the outer wall of the U-shaped baffle 13;

[0064] The scratch-resistant viewing window 15 is glued and fixed inside the rectangular window 14 on the same side;

[0065] A lifting and limiting structure 16 is evenly installed between the U-shaped baffle 13 and the outer wall of the U-shaped frame 11. After the lifting and limiting structure 16 is released, the U-shaped baffle 13 can be lifted and adjusted to a suitable height. The U-shaped baffle 13 of this height is limited and fixed by the lifting and limiting structure 16. Adjustable U-shaped baffles 13 of different heights are suitable for operators of different heights.

[0066] In some embodiments, in order to limit and fix the lifting of the U-shaped baffle 13 in the U-shaped slot 12, the lifting and limiting structure 16 includes:

[0067] A strip-shaped wedge-shaped chute 161 is longitudinally opened on the outer wall of the U-shaped baffle 13;

[0068] A threaded rod 162 is slidably engaged in the strip-shaped wedge-shaped slide groove 161, and the outer end of the threaded rod 162 passes through the outer wall of the U-shaped frame 11, and the inner end of the threaded rod 162 is fixedly connected to a wedge-shaped slider, and the threaded rod 162 is slidably engaged in the strip-shaped wedge-shaped slide groove 161 through the wedge-shaped slider;

[0069] The internal threaded tube 163 is screwed to the outer end of the threaded rod 162, and the internal threaded tube 163 rests on the outer wall of the U-shaped frame 11; when the internal threaded tube 163 is loosened, the U-shaped baffle 13 slides on the wedge-shaped slider at the inner end of the threaded rod 162 through the strip-shaped wedge-shaped groove 161. After the internal threaded tube 163 is tightened, the wedge-shaped slider at the inner end of the threaded rod 162 rests on the inner wall of the strip-shaped wedge-shaped groove 161 for limit fixing.

[0070] In some embodiments, in order to facilitate the rotation operation of the internal threaded tube 163, anti-slip hemp patterns are provided on the outer wall of the internal threaded tube 163.

[0071] In some embodiments, in order to make the window wear-resistant and scratch-resistant, the scratch-resistant window 15 includes:

[0072] A glass plate 151 is glued and fixed in the rectangular window 14;

[0073] A transparent adhesive layer 152 is coated on the side of the glass plate 151 facing the drill bit of the bench drill, and a sapphire film 153 is adhered to the side of the glass plate 151 facing the drill bit of the bench drill through the transparent adhesive layer 152;

[0074] A sapphire film 153 is adhered and fixed on the transparent adhesive layer 152 . The sapphire film 153 has a scratch resistance comparable to that of diamond, with a Mohs hardness of 9.

[0075] In some embodiments, in order to facilitate the control of the lifting and lowering of the U-shaped baffle 13 in the U-shaped slot 12 , a handle 4 is fixedly mounted on the upper end of the outer wall of the U-shaped baffle 13 .

[0076] In some embodiments, in order to make the handle 4 more comfortable to grip, the handle 4 includes:

[0077] A handle body 41, which is fixedly connected to the upper end of the outer wall of the U-shaped baffle 13;

[0078] An arc-shaped groove 42 is formed on the gripping crossbar of the handle body 41. The arc-shaped groove 42 conforms to the gripping shape of the hand, and a rubber layer may be pasted on the surface to increase the softness.

[0079] In some embodiments, in order to form an air curtain on three sides of the inner wall of the lifting type chip blocking device body 1 to buffer and shield the flying debris, the air curtain generating mechanism 3 includes:

[0080] There are six cavity cross bars 31, which are laterally pasted and fixed to the upper and lower edges of three sides of the inner wall of the lifting type chip guard body 1;

[0081] The opposite surfaces of the upper and lower cavity cross bars 31 are uniformly provided with exhaust holes 32 along the length direction;

[0082] A connecting pipe 33 is fixedly connected between the six cavity cross bars 31, and an air intake pipe 34 is fixedly connected to the connecting pipe 33. The air intake pipe 34 is used to connect to an external air supply mechanism. Wind enters each cavity cross bar 31 along the connecting pipe 33, and is finally evenly ejected from the exhaust holes 32 of the cavity cross bar 31. The wind ejected from the corresponding upper and lower cavity cross bars 31 is convected in the middle and dissipated to both sides to form a wind curtain.

[0083] In some embodiments, in order to make the airflow between the six cavity cross bars 31 smoother, the six cavity cross bars 31 are connected end to end through a connecting pipe 33 .

[0084] In some embodiments, in order to facilitate the disassembly and installation of the lifting chip guard body 1 and the bench drill base, a fixed connection structure 2 is evenly installed between the lower end of the U-shaped frame 11 and the bench drill base, which includes:

[0085] A mounting groove 21 is provided at the upper edge of the side wall of the bench drill base;

[0086] A mounting plate 22 is fixedly connected to the corresponding mounting groove 21 at the lower end of the U-shaped frame 11, and the mounting plate 22 is inserted into the corresponding mounting groove 21;

[0087] A fixing bolt 23 is fixedly connected between the outer wall of the mounting plate 22 and the bottom surface of the mounting groove 21 , and the removal and installation of the lifting chip guard body 1 on the bench drill base can be achieved by removing and installing the fixing bolt 23 .

[0088] Working principle:

[0089] The lifting chip guard body 1 is U-shaped, and the U-shaped shielding is on the side where the operator is located. By shielding in three directions, it is better to prevent the flying debris from injuring the operator. The opening of the lifting chip guard body 1 faces the drill bit of the bench drill. The lifting chip guard body 1 can be easily disassembled and installed, which is convenient for inspection and maintenance. The three sides of the lifting chip guard body 1 are equipped with anti-scratch windows 15, through which the bench drill processing process can be observed. The anti-scratch window 15 achieves an anti-scratch effect by improving the hardness of the inner wall;

[0090] The wind curtain generating mechanism 3 is connected to the external air supply mechanism, and its uniform air discharge forms a wind curtain, which is blocked on the inner wall of the lifting type chip blocking device body 1. The flying debris is blocked by the wind curtain and then falls on the anti-scratch window 15. The double protection prevents the window from being scratched and causing a reduction in transparency.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A chip retaining device for a bench drill, characterized in that: include: A lifting type chip guard device body (1) is U-shaped; The lower end of the lifting type chip guard body (1) is detachably mounted on the base of the bench drill, and the opening of the lifting type chip guard body (1) faces the drill bit of the bench drill; The three sides of the lifting type chip guard body (1) are equipped with anti-scratch windows (15); The upper and lower edges of the inner wall of the lifting type chip blocking device body (1) are fixedly attached with an air curtain generating mechanism (3), and the input end of the air curtain generating mechanism (3) is fixedly connected with an external air supply mechanism; The output end of the wind curtain generating mechanism (3) exhausts air to form a wind curtain that blocks the inner wall of the lifting type chip blocking device body (1).

2. A chip guard device for a bench drill according to claim 1, characterized in that: The lifting type chip guard device body (1) comprises: A U-shaped frame (11) which is detachably mounted on the base of the bench drill; The inner wall of the U-shaped frame (11) is provided with a U-shaped slot (12); A U-shaped baffle (13) which is longitudinally slidably inserted into the U-shaped slot (12); Rectangular windows (14) are provided on three sides of the outer wall of the U-shaped baffle (13); The scratch-resistant viewing window (15) is glued and fixed inside the rectangular window (14) on the same side; A lifting and limiting structure (16) is evenly installed between the U-shaped baffle (13) and the outer wall of the U-shaped frame (11).

3. A chip guard device for a bench drill according to claim 2, characterized in that: The lifting and limiting structure (16) comprises: A strip-shaped wedge-shaped slide groove (161) is longitudinally opened on the outer wall of the U-shaped baffle (13); A threaded rod (162) is slidably engaged in the strip-shaped wedge-shaped sliding groove (161), and the outer end of the threaded rod (162) penetrates the outer wall of the U-shaped frame (11); The internal threaded cylinder (163) is threadedly connected to the outer end of the threaded rod (162), and the internal threaded cylinder (163) abuts against the outer wall of the U-shaped frame (11).

4. A chip guard device for a bench drill according to claim 3, characterized in that: The outer wall of the internally threaded cylinder (163) is provided with anti-slip hemp patterns.

5. The chip guard device for a bench drill according to claim 2, characterized in that: The scratch-resistant window (15) comprises: A glass plate (151) which is glued and fixed in the rectangular window (14); The glass plate (151) is coated with a transparent adhesive layer (152) on the side facing the drill bit of the bench drill; A sapphire film (153) is adhered and fixed on the transparent adhesive layer (152).

6. The chip guard device for a bench drill according to claim 2, characterized in that: A handle piece (4) is fixedly mounted on the upper end of the outer wall of the U-shaped baffle (13).

7. The chip guard device for a bench drill according to claim 6, characterized in that: The handle member (4) comprises: A handle body (41) fixedly connected to the upper end of the outer wall of the U-shaped baffle (13); An arc-shaped groove (42) is formed on the gripping crossbar of the handle body (41).

8. The chip guard device for a bench drill according to claim 1, characterized in that: The wind curtain generating mechanism (3) comprises: There are six cavity cross bars (31), and the six cavity cross bars (31) are respectively and laterally glued and fixed to the upper and lower edges of three sides of the inner wall of the lifting type chip blocking device body (1); The opposite surfaces of the upper and lower cavity cross bars (31) are evenly provided with exhaust holes (32) along the length direction; A connecting pipe (33) is fixedly connected between the six cavity cross bars (31), and an air intake pipe (34) is fixedly connected to the connecting pipe (33).

9. The chip guard device for a bench drill according to claim 8, characterized in that: The positions between the six cavity cross bars (31) are connected end to end via a connecting pipe (33).

10. The chip guard device for a bench drill according to claim 2, characterized in that: A fixed connection structure (2) is evenly mounted between the lower end of the U-shaped frame (11) and the base of the bench drill, and comprises: A mounting groove (21) is provided at the upper edge of the side wall of the bench drill base; A mounting plate (22) is fixedly connected to the mounting groove (21) corresponding to the lower end of the U-shaped frame (11), and the mounting plate (22) is inserted into the corresponding mounting groove (21); A fixing bolt (23) is fixedly connected between the outer wall of the mounting plate (22) and the bottom surface of the mounting groove (21).

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