Auxiliary device for drilling lateral hole of circular piece

Abstract

The utility model relates to an auxiliary clamp for machining, in particular to an auxiliary device for drilling a lateral hole of a circular piece. A circular part lateral hole drilling auxiliary device comprises a fixing base, a rotating shaft used for being matched with a center hole of a workpiece, a supporting column used for supporting the workpiece and a pressing plate used for limiting the front-back position of the workpiece are arranged on the front side of the fixing base, and a ruler used for being matched with an auxiliary line on the workpiece is further arranged on the fixing base. The rotating shaft is located in the middle of the fixing base and matched with a fixing piece used for being fixed to a workpiece, the face, used for making contact with the workpiece, of the supporting column is an arc face, a linear driver is arranged on the fixing base, and the supporting column is fixed to the output end of the linear driver. The supporting column moves in the radial direction of the rotating shaft under the action of the linear driver, and the scaleplate is located on the left portion or the right portion of the fixing base. The drill bit has the advantages that the drill bit is not easy to break, the drill bit can be matched with a simple vertical drilling machine, and drilling on the side wall of a round workpiece is facilitated.

Description

Technical Field

[0001] The utility model relates to a processing auxiliary fixture, in particular to a circular part lateral hole drilling auxiliary device. Background Art

[0002] The patent with publication number CN204711288U discloses a circular workpiece side hole processing device, including a pressure plate and a drilling template and a support plate perpendicular to each other. The drilling template is bored with drill holes, the support plate and the drilling template are used to fit against the circular workpiece, and the pressure plate is used to fix the positioned workpiece on the side workbench.

[0003] The above scheme can be used in conjunction with an ordinary horizontal drilling machine. The workpiece with a circular outer edge of the cross section can be placed flat on the workbench for processing the lateral hole. There is no need to use a five-axis machine tool for processing, which can reduce production costs.

[0004] However, the above scheme has the following defects: when the horizontal drill bit is processing, it is difficult for the coolant to enter the processed hole, and it is difficult to cool the drill bit. In addition, the drill bit needs to pass through the drilling hole of the drilling template, and the slender drill bit is easy to break. Utility Model Content

[0005] The utility model aims to provide a circular workpiece lateral hole drilling auxiliary device which is not easy to break the drill bit, can be matched with a simple vertical drilling machine and is convenient for drilling holes on the side wall of the circular workpiece.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a circular part lateral hole drilling auxiliary device, including a fixed seat, the front side of the fixed seat is provided with a rotating shaft for cooperating with the center hole of the workpiece, a support column for supporting the workpiece, and a pressure plate for limiting the front and rear positions of the workpiece, and the fixed seat is also provided with a ruler for cooperating with the auxiliary line on the workpiece, the rotating shaft is located in the middle of the fixed seat and is equipped with a fixing part for fixing to the workpiece, the surface of the support column for contacting with the workpiece is an arc surface, a linear drive is provided on the fixed seat, the support column is fixed to the output end of the linear drive, the support column moves radially along the rotating shaft under the action of the linear drive, and the ruler is located on the left or right part of the fixed seat.

[0007] The auxiliary device of the utility model is suitable for assisting the processing of the lateral hole of a workpiece with a hole in the center and a circular outer edge of the cut section. Before processing a circular workpiece, auxiliary lines are first drawn on the surface of the workpiece. For example, the direction of the auxiliary lines is determined according to the drilling direction, so that the auxiliary lines coincide with or are perpendicular to the projection of the position to be drilled. The auxiliary device of the utility model is used in conjunction with a vertical drilling machine with a vertically arranged drill bit. The workpiece is placed on a support column and located in front of a fixed seat. All support columns are moved radially along the rotating axis through a linear drive, and the workpiece is matched with the rotating axis, so as to determine the center alignment between the workpiece and the entire auxiliary device, effectively support workpieces of different outer diameters and maintain the concentricity of the workpiece; the fixing between the rotating axis and the workpiece is achieved through a fixing part, so as to achieve rotational fixation between the workpiece and the fixed seat; the workpiece is rotated so that the auxiliary lines of the workpiece are aligned with the drill bit of the drilling machine, and the staff judges whether the workpiece is rotated into place by observing the relative position and angle between the ruler and the auxiliary lines, and then limits the front and rear directions of the workpiece by the cooperation of the pressure plate and bolts, etc. or the cooperation of the pressure plate and other components; finally, the drill bit is lowered to process the hole. The linear actuator of the utility model can be any existing device such as a cylinder guide rail that can realize the reciprocating movement of the support member along a linear direction.

[0008] The auxiliary device of the utility model can be used in conjunction with a low-cost vertical drilling machine. Compared with a five-axis high-precision lathe, its use cost is lower. Compared with a horizontal drilling machine, the coolant can directly flow downward into the hole at the processing location, and the coolant is easy to move downward along the drill bit, which can better cool and lubricate the drill bit. There is no need to set a drilling template with drilling holes, and the drill bit can be set shorter to make the drill bit less likely to break.

[0009] Preferably, a plurality of first guide grooves are provided at the lower portion of the fixed seat, and the first guide grooves extend radially along the rotating shaft. The linear drive is arranged at the rear side of the fixed seat, and a slider is slidably provided at the first guide groove, and the support column is fixed to the output end of the linear drive through the slider.

[0010] The above arrangement can reduce the number of components on the front side of the fixed seat, making it easier to place the workpiece on the support column or remove the workpiece from the support column, while also preventing the coolant and dropped waste chips from having a negative impact on the linear drive.

[0011] Preferably, the outer edge of the cross section of the support column is circular, and the support column is sleeved and fixed on the slider. By adopting a cylindrical support column, each side wall of the support column can be an arc surface that can contact and cooperate with the workpiece, which can extend the service life of the support column.

[0012] Preferably, the front end of the support column is provided with a limiting portion extending outward in the circumferential direction. By providing the limiting portion, the workpiece is prevented from sliding forward when tipping over, thereby improving the safety of the auxiliary device of the utility model when in use.

[0013] Preferably, the left and right sides of the pressing plate are equipped with second guide grooves, the pressing plate is fixed to the fixing seat by a first fastener and the first fastener passes through the second guide groove. The above arrangement can make the auxiliary device of the utility model simpler in structure and lower in use cost.

[0014] Preferably, the rotating shaft is rotationally fixed to the fixing seat, and the fixing member includes a tapered sleeve for sleeved on the rotating shaft and a locking plate for fixing the tapered sleeve to the rotating shaft, and the locking plate and the end of the rotating shaft are provided with mutually matching threaded structures. The tapered sleeve is inserted into the center hole of the workpiece, and the tapered sleeve and the rotating shaft are mutually sleeved, and finally the locking plate is threadedly matched with the rotating shaft; as the locking plate is gradually locked, the tapered sleeve will move axially along the rotating shaft to a certain extent, and when the locking plate is difficult to continue to lock, the tapered surface of the tapered sleeve will abut against the wall of the center hole of the workpiece, thereby realizing the rotation fixation between the workpiece and the rotating shaft.

[0015] Preferably, the scale is fixed to the fixing seat via a fixing bracket, one of the fixing bracket and the scale is provided with a third guide groove extending in the front-to-back direction, the other of the fixing bracket and the scale is provided with a fixing hole, and the fixing hole is threadedly engaged with a second fastener. The above arrangement enables the front-to-back position of the scale to be adjustable, so that it can be applied to workpieces of different thicknesses within a certain range.

[0016] Preferably, when the drill bit is located at the left part of the fixing seat, the scale is located at the right part of the fixing seat, that is, the scale and the drill bit used for processing are not located on the same side, which can prevent the waste chips and coolant generated during processing from falling on the scale, thereby avoiding affecting the indexing accuracy.

[0017] The utility model has the advantages that the drill bit is not easy to break, can be matched with a simple vertical drilling machine, and is convenient for drilling holes on the side wall of a circular workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model when in use.

[0019] Figure 2 It is a structural schematic diagram of the utility model.

[0020] Figure 3 for Figure 1 Align the ruler in the enlarged view with the second guide line. DETAILED DESCRIPTION

[0021] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0022] Depend on Figure 1 and Figure 2 As shown, this embodiment discloses a lateral hole drilling auxiliary device for a circular piece, comprising a fixed seat 1, a rotating shaft 2 for cooperating with the center hole of a workpiece 100, a support column 3 for supporting the workpiece 100, a pressing plate 4 for limiting the front and rear positions of the workpiece 100 are provided on the front side of the fixed seat 1, and a scale 5 for cooperating with the auxiliary line of the workpiece 100 is also provided on the fixed seat 1. The auxiliary device of this embodiment is used to clamp a workpiece 100 with a center hole and a circular outer edge of the cross section, and to perform lateral hole processing on the workpiece 100 in conjunction with a vertical drilling machine.

[0023] The rotating shaft 2 is located in the middle of the fixed seat 1 and is equipped with a fixing part for fixing with the workpiece 100. The rotating shaft 2 of this embodiment is rotatably fixed with the fixed seat 1. The fixing part includes a tapered sleeve 21 for sleeved on the rotating shaft 2 and a locking plate for fixing the tapered sleeve 21 with the rotating shaft 2. The locking plate includes a plate body 22 and a first locking bolt (not shown in the figure). The center of the plate body 22 has a through hole for matching with the locking bolt. The first locking bolt of the locking plate and the end of the rotating shaft 2 are provided with a threaded structure that matches with each other. The plate body 22 and the first locking bolt of the locking plate of this embodiment are separately arranged, and the plate body 22 and the first locking bolt can also be directly fixed together. Among them, the rotating shaft 2 of this embodiment is also detachably fixed on the fixed seat 1. The fixed seat 1 is provided with three rotating shaft holes for matching with the rotating shaft 2, which are spaced up and down.

[0024] A first guide groove 11 is provided on the left and right sides of the lower part of the fixed seat 1, respectively. The two first guide grooves 11 are symmetrically arranged. The first guide groove 11 extends radially along the rotating shaft 2. A linear driver (not shown in the figure) is arranged at the rear side of the fixed seat 1. A slider 31 is slidably arranged at the first guide groove 11. The support column 3 is fixed to the output end of the linear driver through the slider 31. The support column 3 moves radially along the rotating shaft 2 under the action of the linear driver.

[0025] The surface of the support column 3 for contacting the workpiece 100 is an arc surface, the outer edge of the cross section of the support column 3 is circular, the support column 3 is sleeved and fixed on the slider 31, the slider 31 is provided with a step, and the end of the slider 31 is provided with a plate-like member 32 and a second locking bolt (not shown in the figure), and the second locking bolt is threadedly fixed to the slider 31, so that the support column 3 is pressed against the step surface of the slider 31 through the plate-like member 32. Among them, the outer diameter of the plate-like member 3 is larger than the outer diameter of the support column 3, and the outer edge of the plate-like member 3 is used as a limiter.

[0026] The left and right sides of the pressing plate 4 are matched with second guide grooves 41, the pressing plate 4 is fixed to the fixing seat 1 by the first fastener and the first fastener 42 passes through the second guide groove 41, the fixing seat 1 is provided with matching holes 12 arranged at intervals on the left and right, and the hole wall of the matching hole 12 and the outer wall of the end of the first fastener are provided with mutually matching threaded structures. Among them, the matching hole 12 is located at the lower side of the ruler 5.

[0027] In order to facilitate the processing of both left-handed and right-handed inclined holes, a scale 5 is provided on the left and right parts of the fixing seat 1 of this embodiment. The scale 5 is fixed to the fixing seat 1 through a fixing bracket 51, and the fixing bracket 51 is provided with a fixing hole (not shown in the figure) penetrating from top to bottom. The scale 5 is provided with a third guide groove 52 extending in the front-to-back direction, and a second fastener (not shown in the figure) is threadedly engaged at the fixing hole. The scale 5 is fixed to the fixing bracket 51 through the second fastener. Among them, the scale 5 has an inverted triangular pyramid-shaped scale pointer at a position away from the fixing bracket 51.

[0028] Before processing the workpiece 100, the first auxiliary line 101 and the second auxiliary line 102 are firstly drawn on the surface of the workpiece 100, the first auxiliary line 101 coincides with the projection of the position to be drilled, the second auxiliary line 102 corresponds to the first auxiliary line 101 one by one, and each second auxiliary line 102 is perpendicular to the corresponding first auxiliary line 101, that is, when a first auxiliary line 101 is vertical, there must be a second auxiliary line 102 set horizontally. In this embodiment.

[0029] The workpiece 100 is placed on the support column 3 and located in front of the fixed seat 1. All the support columns 3 are moved radially along the rotating shaft 2 by the linear drive, and the workpiece 100 is matched with the rotating shaft 2, so as to determine the center alignment between the workpiece 100 and the entire auxiliary device, effectively support the workpieces 100 with different outer diameters and maintain the concentricity of the workpiece 100. The workpiece 100 is pressed and fixed in front of the fixed seat 1 by the pressing plate 4 and the first fastener, and then the auxiliary device of this embodiment is moved to the drilling machine by the crane, and then the position alignment between the auxiliary device of this embodiment and the drilling machine is performed.

[0030] The first fastener is loosened, and the workpiece 100 is rotated to align a second auxiliary line 102 of the workpiece 100 with the pointer of the ruler 5, so that a first auxiliary line 101 of the workpiece is aligned with the drill bit 200 of the drilling machine (not shown in the figure), and the first fastener is locked to press the workpiece 100, and finally the drill bit is lowered to process the hole. The above operation is repeated to realize the processing of multiple lateral inclined holes on the workpiece 100.

[0031] This embodiment has the advantages that the drill bit is not easy to break, can be matched with a simple vertical drilling machine, and is convenient for drilling holes on the side wall of a circular workpiece.

Claims

1. A circular part lateral hole drilling auxiliary device, comprising a fixing seat, characterized in that: The front side of the fixed seat is provided with a rotating shaft for cooperating with the center hole of the workpiece, a support column for supporting the workpiece, and a pressure plate for limiting the front and rear position of the workpiece, and the fixed seat is also provided with a ruler for cooperating with the auxiliary line on the workpiece. The rotating shaft is located in the middle of the fixed seat and is equipped with a fixing part for fixing to the workpiece. The surface of the support column for contacting with the workpiece is an arc surface. A linear drive is provided on the fixed seat, and the support column is fixed to the output end of the linear drive. The support column moves radially along the rotating shaft under the action of the linear drive, and the ruler is located on the left or right part of the fixed seat.

2. The circular part lateral hole drilling auxiliary device according to claim 1, characterized in that: A plurality of first guide grooves are provided at the lower part of the fixing seat, and the first guide grooves extend radially along the rotating shaft. The linear driver is arranged at the rear side of the fixing seat, and a slider is slidably provided at the first guide groove, and the support column is fixed to the output end of the linear driver through the slider.

3. The circular part lateral hole drilling auxiliary device according to claim 2, characterized in that: The outer edge of the cross section of the support column is circular, and the support column is sleeved and fixed on the sliding block.

4. The circular part lateral hole drilling auxiliary device according to claim 1, 2 or 3, characterized in that: A limiting portion extending circumferentially outward is provided at the front end of the support column.

5. The circular part lateral hole drilling auxiliary device according to claim 1, characterized in that: The left and right sides of the pressing plate are both matched with second guide grooves, and the pressing plate is fixed to the fixing seat through a first fastener and the first fastener passes through the second guide groove.

6. The circular part lateral hole drilling auxiliary device according to claim 1, characterized in that: The rotating shaft is rotatably fixed to the fixing seat, and the fixing member includes a tapered sleeve for sleeved on the rotating shaft and a locking plate for fixing the tapered sleeve to the rotating shaft, and the locking plate and the end of the rotating shaft are provided with mutually matching threaded structures.

7. The circular component lateral hole drilling auxiliary device according to claim 1, characterized in that: The ruler is fixed to the fixing seat via a fixing bracket, one of the fixing bracket and the ruler is provided with a third guide groove extending in the front-to-back direction, the other of the fixing bracket and the ruler is provided with a fixing hole, and a second fastener is threadedly engaged at the fixing hole.

8. The circular part lateral hole drilling auxiliary device according to claim 1 or 7, characterized in that: When the drill bit is located at the left portion of the fixing seat, the scale is located at the right portion of the fixing seat.

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