Burr-free drilling auxiliary device for numerical control machining

Abstract

The utility model discloses a numerical control machining burr-free drilling auxiliary device which is characterized by comprising a base, springs and an elastic pressing sleeve, the base is sleeved outside a numerical control machine tool spindle, a plurality of springs are connected between the base and the elastic pressing sleeve, and a through hole for a drill bit to penetrate through is arranged in the middle of the elastic pressing sleeve. The device is simple in structure and good in stability, and effectively solves the problem that burrs are generated during product drilling.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field more specifically is related to a numerical control processing no burr drilling auxiliary device. BACKGROUND

[0002] At present, burrs will be produced on the positive and negative surfaces of aluminum material drilling, and the surface is not allowed when drilling for many products (for example, metal decoration parts), so a corresponding drilling auxiliary device needs to be designed. For example, a no-burr metal part drilling device is disclosed in Chinese patent No. CN 211588586U, which comprises a fixing frame, a connecting rod is arranged at the upper end of the fixing frame, a ball screw is arranged through the two sides of the fixing frame, one end of the ball screw is driven by a first motor, a screw nut is arranged on the ball screw, a slide rod is arranged at the upper part of the screw nut, and a gas cylinder is arranged at the lower part of the screw nut, the upper part of the slide rod is slidably connected with the connecting rod, a second motor is arranged at the output end of the gas cylinder, and a drill bit is arranged at the output end of the second motor; a first fixed plate is arranged at the lower part of the fixing frame, a screw is arranged at the middle part of the side edge of the first fixed plate, a sleeve is arranged on the screw, and a fastening plate is arranged at the end of the screw. The structure of this patent solves the problem of low drilling precision, but the overall structure is complex, disassembly and maintenance are not convenient, and it is difficult to meet the use requirements of people, and the structure needs to be further improved. SUMMARY

[0003] The utility model discloses a stable and reliable, numerical control processing no burr drilling auxiliary device of high machining precision to solve the technical problems of prior art.

[0004] The utility model discloses a technical solution as follows to realize the above-mentioned purpose: a numerical control processing no burr drilling auxiliary device, characterized in that it comprises a base, a spring and a spring pressing sleeve, the base is sleeved outside the main shaft of the numerical control machine tool, a plurality of springs are connected between the base and the spring pressing sleeve, and a through hole through which the drill bit passes is arranged in the middle part of the spring pressing sleeve.

[0005] As a further description of the above-mentioned scheme, the base comprises a positioning shaft sleeve, a locking plate and a screw, the positioning shaft sleeve is provided with a corresponding connection position of the locking plate, the locking plate is installed on the connection position and locked as a whole by the screw.

[0006] Further, a plurality of counterbores are arranged at the bottom of the base, the spring is installed in the counterbores, and one end of the spring protrudes from the base and is in abutting contact with the spring pressing sleeve.

[0007] Further, the spring pressing sleeve comprises a fixed ring and a drill bit positioning frame, the fixed ring is fixedly connected to the bottom of the positioning shaft sleeve, the drill bit positioning frame is provided with a plurality of connecting feet connected with the fixed ring, a ring sleeve is embedded in the through hole of the spring pressing sleeve, and the drill bit extends outward through the ring sleeve.

[0008] Further, the drill bit positioning frame is a cross support frame, the connecting legs are perpendicular to the cross support frame, and the two ends of the connecting legs are connected to the fixing ring and the drill bit positioning frame respectively.

[0009] Further, the lower part of the elastic pressing sleeve is provided with a non-metal material sheet.

[0010] Further, the front and back surfaces of the product are provided with non-metal material sheets, the non-metal material sheets are 0.4-0.6 cm bakelite sheets, the product is pressed during drilling, and the burr problem generated during drilling of the product is effectively solved.

[0011] The beneficial effects achieved by the utility model adopting the above technical solutions are.

[0012] The utility model discloses a drilling auxiliary structure mainly comprising a base, springs and an elastic pressing sleeve, the base is sleeved outside the main shaft of the numerical control machine tool, the plurality of springs are connected between the base and the elastic pressing sleeve, the middle part of the elastic pressing sleeve is provided with a through hole through which the drill bit passes, burrs are generated on the surface of the product during drilling, the front and back surfaces of the drilled product are pasted with non-metal material sheets, the elastic pressing sleeve is pressed during drilling, and the burrs generated during drilling are on the upper and lower surfaces of the non-metal material, so that the product does not have burrs, and the drilling precision is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a use state structure schematic view of the utility model.

[0014] Figure 2 It is a structure schematic view of the utility model.

[0015] Figure 3 It is a base structure schematic view.

[0016] Figure 4 It is a base structure schematic view.

[0017] Figure 5 It is a positioning shaft sleeve structure schematic view.

[0018] Mark explanation: 1, base 1-1, positioning shaft sleeve 1-11, interface position 1-12, counterbore 1-2, locking plate 1-3, screw 2, spring 3, elastic pressing sleeve 3-1, through hole 3-2, fixing ring 3-3, drill bit positioning frame 3-4, connecting leg 4, numerical control machine tool main shaft 5, ring sleeve 6, non-metal material sheet. DETAILED DESCRIPTION

[0019] In the description of the utility model, it is necessary to explain that, for the direction words, if the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0020] In addition, if the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "at least" is one or more, unless otherwise explicitly specified and limited.

[0021] In the utility model, unless otherwise specified and limited, if the terms "assembly", "connection", "connection" are understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or it can be connected between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0022] In the utility model, unless otherwise specified and limited, the "upper" or "lower" of the first feature on the second feature can include the direct contact of the first and second features, or the contact of the first feature and the second feature through another feature between them. Moreover, the "upper", "lower" and "upper" of the first feature on the second feature include the vertical direction above and oblique above of the first feature on the second feature, or only indicate that the horizontal height of the first feature is higher than the height of the second feature. The "upper", "lower" and "lower" of the first feature on the second feature include the vertical direction below and oblique below of the first feature on the second feature, or only indicate that the horizontal height of the first feature is lower than the height of the second feature.

[0023] The specific embodiments of the utility model are further described below in conjunction with the drawings of the specification, so that the technical scheme of the utility model and its beneficial effects are more clear and explicit. The description of the embodiments below is exemplary and is intended to explain the utility model, and cannot be understood as limiting the utility model.

[0024] As Figures 1-5As shown, the utility model is a kind of numerical control processing burr-free drilling auxiliary device, including base 1, spring 2, elastic pressure cover 3, base 1 is set in numerical control machine tool spindle 4 outside. In order to realize the connection and fixation of base and machine tool spindle, base 1 includes positioning shaft sleeve 1-1, locking plate 1-2, screw 1-3, positioning shaft sleeve 1-1 is provided with the corresponding interface of locking plate 1-11, locking plate 1-2 is installed on interface 1-11, and the two are locked as a whole by screw 1-3, and disassembly and maintenance are also very convenient. A plurality of springs 2 are connected between base 1 and elastic pressure cover 3, and the middle part of elastic pressure cover 3 is provided with a through hole 3-1 through which a drill bit passes. The bottom of positioning shaft sleeve 1-1 is annular, a plurality of counterbores 1-12 are provided along the annular bottom surface, and the spring 2 is installed in the counterbores 1-12, and one end of the spring 2 protrudes from the base and is in abutting engagement with the elastic pressure cover.

[0025] The elastic pressure cover 3 includes a fixing ring 3-2 and a drill bit positioning frame 3-3, the fixing ring 3-2 is fixedly connected to the bottom of the positioning shaft sleeve, the drill bit positioning frame 3-3 is provided with a plurality of connecting feet 3-4 connected to the fixing ring 3-2, and a ring sleeve 5 is embedded in the through hole 3-1 of the elastic pressure cover, and the drill bit extends outward through the ring sleeve. In this embodiment, the drill bit positioning frame 3-3 is a cross support frame, the connecting feet are perpendicular to the cross support frame, and the two ends of the connecting feet 3-4 are connected to the fixing ring and the drill bit positioning frame respectively. The front and back surfaces of the product are provided with non-metal material sheets 6, the non-metal material sheets are arranged below the elastic pressure cover, the non-metal material sheets are 0.5cm bakelite sheets, and the product is pressed tightly during drilling, effectively solving the problem of burrs generated during product drilling.

[0026] During drilling, the numerical control machine tool spindle descends, and the elastic pressure cover descends synchronously, and under the action of the spring, the product is first pressed, and since the non-metal material sheets are attached to the upper and lower surfaces of the product, the holes drilled by the product are burr-free.

[0027] Compared with the prior art, the utility model adopts the drilling auxiliary structure mainly composed of base, spring and elastic pressure cover, non-metal material sheets are attached to the front and back surfaces of the product to be drilled, and the elastic pressure cover is pressed tightly during drilling, and the burrs generated during drilling are on the upper and lower surfaces of the non-metal material, so that the product is completely burr-free, and the drilling precision is greatly improved.

[0028] The above-mentioned is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the art, without departing from the creative concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A burr-free drilling auxiliary device for numerical control machining, characterized by, It includes base, spring, spring pressing cover, base cover is set outside the main shaft of numerical control machine tool, multiple springs are connected between the base and the spring pressing cover, the middle part of the spring pressing cover is provided with a through hole for the drill to pass through.

2. The burring aid for numerical control machining according to claim 1, characterized in that, The base comprises a positioning shaft sleeve, a locking plate and a screw, the positioning shaft sleeve is provided with a corresponding connection position of the locking plate, the locking plate is installed on the connection position and locked as a whole through the screw.

3. The drill hole auxiliary device for numerical control machining without burrs according to claim 2, characterized in that, The bottom of the base is provided with multiple counterbores, the spring is installed in the counterbores, and one end of the spring protrudes from the base and is in top pressing cooperation with the spring pressing cover.

4. The burring aid for numerical control machining according to claim 1, characterized in that, The spring pressing cover comprises a fixing ring and a drill positioning frame, the fixing ring is fixedly connected to the bottom of the positioning shaft sleeve, the drill positioning frame is provided with multiple connecting feet connected with the fixing ring, and a ring sleeve is embedded in the through hole of the spring pressing cover, and the drill extends outward through the ring sleeve.

5. The drill hole auxiliary device for numerical control machining without burrs according to claim 4, characterized in that, The drill positioning frame is a cross support frame, the connecting feet are perpendicular to the cross support frame, and the two ends of the connecting feet are connected to the fixing ring and the drill positioning frame respectively.

6. The burring aid according to claim 1, wherein A non-metal material sheet is arranged below the spring pressing cover.

7. The drill hole auxiliary device for numerical control machining without burrs according to claim 6, characterized in that, The non-metal material sheet is a bakelite sheet with a thickness of 0.4-0.6 cm.

Images