CN204724898U - Differential carrier effusion wall boring grab - Google Patents

Abstract

The utility model relates to the technical field of drilling jigs, in particular to a multi-slant hole drilling jig for a differential case, comprising a base, a support plate, a fixing seat, and a mandrel. The mandrel is connected to the fixing seat through a bearing. The fixed seat is connected with the base through the support plate, and one end of the mandrel is provided with a dial mechanism, a support column, and a pressing device. The housing is pressed tightly on the support column, and the positioning pin prevents the differential housing from rotating relative to the support column. After the mandrel is rotated by a certain angle through the dial mechanism, the drill hole is drilled through the drill sleeve of the drill template, so that it can be used The radial drilling machine is used for processing, and the processing accuracy is guaranteed, the use is simple, and the processing quality is guaranteed.

Description

Drilling jig for multi-slope holes in differential case

technical field

The utility model relates to the technical field of drilling jigs, in particular to a multi-slant hole drilling jig for a differential case.

Background technique

The automotive differential is an important mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It needs to be connected with multiple parts, so multiple holes need to be processed, and it requires high dimensional accuracy. A common automotive differential needs to uniformly process eight (four) holes on the differential case along the circumferential direction, and the axial direction of these holes forms an included angle with the axial direction of the differential case. In the prior art, ordinary The advanced drilling equipment cannot be clamped and processed at one time, so it is difficult to ensure the processing accuracy, but it needs to be processed with a five-axis linkage CNC machine tool, and the equipment cost is relatively high.

Utility model content

The purpose of this utility model is to aim at the deficiencies of the prior art, and to provide a differential housing multi-slanted hole drilling jig, which rotates the mandrel at a certain angle through the dial mechanism each time, and then through the drill sleeve of the drilling template. Drilling can be processed with a radial drilling machine, and the processing accuracy is guaranteed, easy to use, and the processing quality is guaranteed.

The technical solution adopted by the utility model to solve the technical problem is: a differential case multi-slant hole drilling fixture, which includes a base, a support plate, a fixing seat, and a mandrel are arranged above the base, and the mandrel The fixed seat is connected with the fixed seat through the bearing, and the fixed seat is connected with the base through the support plate. One end of the mandrel is provided with a dial mechanism for limiting the rotation angle of the mandrel, and is used for axially supporting the difference. The support column of the transmission case, the pressing device for pressing the differential case on the support column, the dial mechanism is provided with a positioning pin for preventing the differential case from rotating relative to the support column, and the support column A drill template is arranged directly above, and the drill template is fixedly connected with the support plate. The drill template is provided with a drill sleeve, and the included angle between the axial direction of the drill sleeve and the axial direction of the mandrel is equal to that of the differential gear. The angle between the shell axis and the axis to be drilled.

The diameter of the support column is equal to the diameter of the center hole of the differential case.

The compression device includes a compression plate and a compression nut, the compression nut is threadedly connected with the mandrel, and the compression plate is located between the compression nut and the support column.

The dial mechanism includes a dial and a pin. The side of the dial is provided with eight through holes equiangularly centered on the axial direction of the mandrel, and the pin is inserted through one of the through holes. The side of the fixed seat.

The positioning pin is vertically arranged on the side of the dial.

The beneficial effect of the utility model is: a differential housing multi-slanted hole drilling fixture, which includes a base, a support plate, a fixed seat, a mandrel, the mandrel is connected to the fixed seat through a bearing, and the fixed The seat is connected to the base through the support plate, and one end of the mandrel is provided with a dial mechanism, a support column, and a pressing device. It is fastened on the support column, and the positioning pin is used to prevent the differential housing from rotating relative to the support column. After the mandrel is rotated by a certain angle through the dial mechanism, the drill hole is drilled through the drill sleeve of the drill template, so that the radial drilling machine can be used. For processing, and to ensure the processing accuracy, easy to use, to ensure the processing quality.

Description of drawings

Fig. 1 is a structural schematic diagram of a multi-slanted hole drilling jig for a differential case of the present invention.

Explanation of reference signs:

1——base 2——support plate

3——fixed seat 4——mandrel

5——Bearing 6——Dial Mechanism

61——locating pin 62——dial

63——Pin 7——Support column

8——Clamping device 81——Press plate

82——Clamp nut 9——Drill template

91——drill sleeve 10——differential case.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the scope of implementation of the utility model is not limited thereto.

As shown in Figure 1, the multi-slant hole drilling jig for the differential case of this embodiment includes a base 1, a support plate 2, a fixing seat 3, and a mandrel 4 are arranged above the base 1, and the mandrel 4 passes through The bearing 5 is connected with the fixed seat 3, the mandrel 4 can rotate, the mandrel 4 is covered with a bush, the bearing 5 is sleeved outside the bush, and the fixed seat 3 is connected to the base 1 through the support plate 2 One end of the mandrel 4 is provided with a dial mechanism 6 for limiting the rotation angle of the mandrel 4, a support column 7 for supporting the differential case 10 in the axial direction, and a support column 7 for pressing the differential case 10 tightly. On the pressing device 8 of the support column 7, the dial mechanism 6 is provided with a positioning pin 61 for preventing the differential case 10 from rotating relative to the support column 7, and a drilling template 9 is arranged directly above the support column 7, so that The drill template 9 is fixedly connected with the support plate 2, the drill template 9 is provided with a drill sleeve 91, and the included angle between the axial direction of the drill sleeve 91 and the axial direction of the mandrel 4 is equal to that of the differential case 10 The included angle between the axial direction and the axial direction of the drilled hole is scientific in structure of the utility model. When in use, the pressing device 8 compresses the differential case 10 on the support column 7, and prevents the differential case 10 through the positioning pin 61. Rotate relative to the support column 7, then prevent the mandrel 4 from rotating through the dial mechanism 6, drill a hole through the drill bushing 91 arranged on the drill template 9, and then fix the mandrel 4 by rotating a certain angle through the dial mechanism 6 , Drill the next hole, so that eight holes are drilled in turn, and the radial drilling machine can be used for processing, and the processing accuracy is guaranteed, the use is simple, and the processing quality is guaranteed. The device can also be used for drilling two holes, four holes.

Further, a central hole is provided in the middle of the differential case 10 , and the diameter of the support column 7 is equal to the diameter of the central hole, so as to limit the differential case 10 in the radial direction.

Further, the pressing device 8 includes a pressing plate 81 and a pressing nut 82, the pressing nut 82 is threadedly connected with the mandrel 4, the pressing plate 81 is located between the pressing nut 82 and the support column 7 between.

Further, the dial mechanism 6 includes a dial 62 and a pin 63, the side of the dial 62 is provided with eight through holes equiangularly centered on the axial direction of the mandrel 4, and the pin 63 Insert the side of the fixing base 3 through one of the through holes. Further, a backing plate can also be provided on the dial 62. When the differential case 10 is pressed against the support column 7, the end surface of the differential case 10 will be against the backing plate, thereby axially supporting the differential case 10. Carry out limit.

Further, the positioning pin 61 is vertically arranged on the side of the dial 62 , and the positioning pin 61 utilizes the hole provided at the end surface of the differential case 10 to prevent the differential case 10 from rotating relative to the dial 62 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (5)

1. The multi-slant hole drilling jig for the differential case is characterized in that it includes a base (1), and a support plate (2), a fixed seat (3), and a mandrel (4) are arranged above the base (1). The mandrel (4) is connected with the fixed seat (3) through the bearing (5), the fixed seat (3) is connected with the base (1) through the support plate (2), and the mandrel One end of (4) is provided with a dial mechanism (6) used to limit the rotation angle of the mandrel (4), a support column (7) used to support the differential case in the axial direction, and a support column (7) used to compress the differential case In the pressing device (8) of the support column (7), the dial mechanism (6) is provided with a positioning pin (61) for preventing the differential case from rotating relative to the support column (7), and the support column (7 ) is provided with a drill template (9), the drill template (9) is fixedly connected to the support plate (2), the drill template (9) is provided with a drill sleeve (91), and the drill sleeve ( The included angle between the axial direction of 91) and the axial direction of the mandrel (4) is equal to the included angle between the axial direction of the differential case and the axial direction of the to-be-drilled hole. 2. The jig for drilling multiple oblique holes in the differential case according to claim 1, characterized in that: the diameter of the support column (7) is equal to the diameter of the center hole of the differential case. 3. The multi-slanted hole drilling jig for differential case according to claim 2, characterized in that: the pressing device (8) includes a pressing plate (81) and a pressing nut (82), and the pressing nut (82) is threadedly connected with the mandrel (4), and the pressure plate (81) is located between the compression nut (82) and the support column (7). 4. The multi-slant hole drilling jig for differential case according to claim 1, characterized in that: the dial mechanism (6) includes a dial (62), a pin (63), and the dial ( The side of 62) is provided with eight through holes equiangularly centered on the axial direction of the mandrel (4), and the pin (63) is inserted into the side of the fixing seat (3) through one of the through holes . 5 . The jig for drilling multiple oblique holes in the differential case according to claim 4 , characterized in that: the positioning pin ( 61 ) is vertically arranged on the side of the dial ( 62 ).