JPH0239707Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a jig for machining calipers used in automobile brake systems.
It has been devised so that a series of cutting operations such as the cylinder hole and seal groove of the caliper can be carried out sequentially without the need for reinstallation, and can be used for cutting operations on the caliper of a disc brake device.

[Conventional technology]

Conventionally, a special machine was used for each major machining part, such as the cylinder hole and pawl of the caliper, and the caliper was attached to each jig that was configured to press in a position that would not interfere with these major machining parts. It's on.

[Problem that the invention attempts to solve]

The above-mentioned conventional machining jigs require dedicated jigs for each machining process of the main machining parts of the caliper. It is necessary to replace the parts, which requires a lot of setup time, and it is difficult to implement automatic processing.

[Means for solving problems]

This idea is based on the main processing parts of the caliper.
Designed so that all cutting operations can be performed by attaching and using a single processing jig, without having to change the attachment to other dedicated processing jigs for each processing process. The present invention proposes a processing jig, which is composed of a cylinder portion 3, left and right pin support portions 5, 6 formed on the outer sides of support arms 4, 4 extending left and right from the cylinder portion 3, A caliper 1 of a brake device consists of a claw part 7 located facing the cylinder hole 2 of the cylinder part 3, and a connecting part 8 connecting the claw part 7 to the cylinder part 3.
Left and right support portions a, which support the left and right lower surface portions 4a, 4a of the left and right support arms 4, 4 and the left and right center lower surface portions 8a of the connecting portion 8, with the claw portions 7 facing upward;
b and the central support portion c, and upper surface pushing portions A and B that abut the left and right upper surface portions 4b and 4b of the support arms 4 and 4 to push the caliper 1 toward the left and right support portions a and b,
The caliper 1 is pushed toward the side end support part f by coming into contact with the side end support part f that supports one left and right side end part 8c of the connection part 8 and the other left and right side end part 8d of the connection part 8. The side end pushing part F and the left and right lower support parts d, e that support the left and right lower side parts 7a of the claw part 7, and the left and right lower support parts d, e that come into contact with the end surface part 3a of the cylinder part 3 and are directed toward the left and right lower support parts d, e. This jig for machining a caliper is characterized by having an end face pushing part D that pushes the caliper 1 by pressing the caliper.

[Effect]

The caliper 1 includes left and right lower surface portions 4a, 4a of the left and right support arms 4, 4, and a left and right center lower surface portion 8 of the connecting portion 8.
a is supported by the left and right support parts a, b and the center support part c of the processing jig 9, and the left and right upper surface parts 4 of the support arm 4
b and 4b are pressed by upper surface pushing parts A and B, and one left and right side end part 8c of the connecting part 8 is supported by a side end support part f of the processing jig 9. The other side end 8d is held down by the side end pushing part F, the left and right lower parts 7a of the claw part 7 are supported by the left and right lower support parts d and e of the processing jig 9, and the cylinder part End face part 3 of 3
a is pressed by the end face pushing part D and is attached to the processing jig 9 with the claw part 7 facing upward, so that the cylinder hole 2 of the cylinder part 3 and the seal provided in the cylinder hole 2 Groove 34, boot groove 3
5. Cutting the deep relief part 33, cutting the inner surface 8b of the connecting part 8, cutting the inner surface 36 of the claw part 7, and boring the pin holes 54, 55 of the left and right pin supports 5, 6. All the cutting work on the main parts of the caliper 1 can be carried out once it is attached to the processing jig 9 as described above, and it is possible to use multiple types of conventional processing jigs such as those mentioned above. This eliminates the inconvenience of having to reinstall each step.

〔Example〕

Next, an embodiment of this invention will be described based on the drawings. The caliper 1, shown in a front view in FIG. 9 and in a vertical side view in FIG. 10, has a cylinder hole 2.
A cylinder portion 3 having a cylinder portion 3, left and right pin support portions 5, 6 formed on the outer sides of support arms 4, 4 extending left and right from the cylinder portion 3, and a claw portion 7 located facing the cylinder hole 2. , and a partially cylindrical connecting portion 8 connecting the claw portion 7 to the cylinder portion 3. The processing jig 9 is attached to the left and right lower surfaces of the left and right support arms 4, 4 of the caliper 1, as shown in a plan view with one part omitted in FIG. Left and right support parts a and b that support 4a and 4a,
A central support part c that supports the left and right central lower surface parts 8a of the connecting part 8, and an upper surface pusher that abuts against the left and right upper surface parts 4b and 4b of the support arm 4 and pushes the caliper 1 toward the left and right support parts a and b. Parts A, B and left and right 1 of connecting part 8
a side end support part f that supports one side end part 8c; and a side end pushing part that abuts on the other left and right side end part 8d of the connecting part 8 and pushes the caliper 1 toward the side end support part f. F, the left and right lower support portions d and e that support the left and right lower side portions 7a of the claw portion 7, and the caliper 1 in contact with the end surface portion 3a of the cylinder portion 3 and toward the left and right lower support portions d and e. An end face pushing part D that pushes is provided.

The specific structures of the upper surface pushing parts A, B, the side end pushing parts F, and the end face pushing parts D, E are all constructed as described above by tightening bolts provided in an upright manner. The device is configured to perform a pushing operation, and the upper surface pushing portions A and B are both similar, and the left side of FIG. 2 shows a longitudinal section near the upper surface pressing portion B. , the pushing piece 14 is fitted into the tightening bolt 11 inserted into the jig main body 10 via the spring 12 and the thrust bearing 13 so that it can rotate about 90 degrees about the thrust bearing 13, and the pushing piece Upper surface pushing part B attached to 14 with bolt 15
However, as the tightening nut 16 is tightened, the spring 12
The left and right upper surfaces 4b, 4b of the support arm 4 will be pushed while compressing the support arm 4, and the tightening nut 16 will be loosened and the pushing piece 14 will be rotated approximately 90 degrees counterclockwise from the position shown in Fig. 1. Due to this, the upper surface pushing portion B is moved to the left and right upper surface portions 4.
It is configured so that it deviates from b.

The side end pushing part F is shown in FIG. 4 as a cross section taken along the Z-Z line in FIG. At the same time, while the pushing piece 20 to which the side end pushing part F is attached with the bolt 19 is in contact with the horizontal wedge piece 18, the vertical pushing piece 22 can also be pushed with the tightening bolt 21. are fitted into the jig main body 10 while in contact with the vertical wedge pieces 17, and as the tightening bolt 21 is tightened, the pushing pieces 2 are pushed against the springs 23 and 24.
0 is configured to be pushed toward the right in FIG.

The end face pushing part D is shown in FIG. 3 as a cutaway view taken along the Y-Y line in FIG. While the pushing pieces 27, which are fitted together and attaching the end face pushing part D, are in contact with the horizontal wedge pieces 26, the vertical pushing pieces 29, which can be pushed by the tightening bolts 28, are attached to the vertical wedges. The pushing pieces 27 are fitted into the jig main body 10 while being pushed by the pieces 30, and as the tightening bolts 28 are tightened, the pushing pieces 27 are moved against the springs 31 and 32 to the third position.
It is configured to be pushed toward the right in the figure. The left and right support portions a, b, the center support portion c, the side end support portions f, and the lower support portions d, e are all connected to the jig main body 10.
It is attached so that it can be removed using a mounting bolt.

Next, the cylinder hole 2 of the caliper 1, the back relief part 3
3. Seal groove 34, boot groove 35, claw inner side 3
An example of cutting of the main parts of 6 etc. will be explained.

FIG. 5 shows a longitudinal side view of the main part of the hole processing machine 37, and the caliper 1 has the claw opening 38 facing upward and the claw 7 on the side near the facing head 39 of the hole processing machine 37. The cutter 40 is attached to the processing jig 9 so that the cylinder part 3 is on the far side from the facing head 39, and the thinnest shank 40a of the cutter 40 is kept rotating during the cutting process.
is moved in and out of the claw opening 38 from above and below, the cutter 40 is moved in and out of the cylinder hole 2 together with the saddle 42 by driving the servo motor 41 for horizontal feed, and the servo motor 43 for vertical feed is driven. Then, the cutter 40 is aligned with the center of the cylinder hole 2 together with the feed unit 44, and the facing motor 45 is driven to rotate the facing shaft 47.
is moved in the left-right direction in FIG. The spindle 5 is rotated by the main shaft rotation servo motor 49.
0 is the slider 4 together with the facing shaft 47
Since the cutter 8 and the cutter 40 are rotationally driven, the cutter 40
The cutting diameter is adjusted by the eccentric operation described above, and the respective inner diameters are corrected to a predetermined value.

As an example of the machining procedure for main machining parts such as the cylinder hole 2 and the back relief part 33, for example, rough cutting of the cylinder hole 2, cutting of the back relief part 33, and semi-finishing of the cylinder hole 2 are performed in the first step. and the second
In the process, rough cutting and finishing of the boot groove 35 and rough cutting of the seal groove 34 are carried out, and in the third process, finish cutting of the cylinder hole 2 and the seal groove 34 is carried out, respectively. , two sets of calipers 1, as shown in front view in FIG.
is attached to a workpiece mount 51 having the same function as the processing jig 9 described above, and as shown in plan view in FIG. The two sets of cutters 40 are provided with two sets of cutters 40, each with one horizontal feed servo motor 41 and one vertical feed servo motor 43.
Hole processing machine 37 that can perform horizontal feed and vertical feed in one unit
A drilling machine 53 equipped with four drills 52 (configured so as to be movable in the left and right direction) is installed on the opposite side of the hole processing machine 37, and a workpiece mounting table 51 is installed. By intermittently moving to the next set, the drilling machine 53 cuts the left and right pin holes 54 and 55 of the caliper 1, and the hole processing machine 37 cuts the cylinder holes 2 and boot grooves 3.
5 and the like can be periodically and continuously cut. and,
Using suitable workpiece mounting bases 51 for calipers 1 of various specifications, the left and right pin holes 5 are
If the heights of the center lines l of the calipers 4 and 55 are always set to be the same, the vertical feed servo motor 43 can be driven for calipers 1 of various specifications with different offset amounts e. By aligning the cutter 40 with the cylinder hole 2, numerical control machining can be performed using the same program at all times.

The jig tightening device 56 shown in the upper part of FIG.
The clamp head 5 is provided to quickly attach the caliper 1 to the workpiece mounting base 51.
A caliper positioning block 60 is attached to the piston 59 of the cylinder 58 attached to the caliper 7, and the inner surface 8b of the connecting portion 8 of the caliper 1 is moved downward by the caliper positioning block 60, which moves downward guided by the guide rods 61, 61. The caliper 1 is set in a predetermined position by pushing the clamping bolt 21 and the clamping nut 14 toward the clamp head 57 by rotating the clamping body 63 of the nut tightening machine 62. It is used for tightening or loosening.

[Effect of idea]

The caliper machining jig according to this invention is constructed as described above.
are the left and right lower surface parts 4a, 4a of the left and right support arms 4, 4
The left and right central lower surface portions 8a of the connecting portion 8 are supported by the left and right support portions a, b and the center support portion c of the processing jig 9, and the left and right upper surface portions 4b, 4b of the support arm 4 are supported by the upper surface pushing portion A. , B, one left and right side end 8c of the connecting part 8 is supported by the side end support part f of the processing jig 9, and the other left and right side end 8d of the connecting part 8 is the side end. Pressed by the pushing part F, the left and right lower side parts 7a of the claw part 7
is supported by the left and right lower support parts d and e of the processing jig 9, and the end face part 3a of the cylinder part 3 is supported by the end face pushing part D.
Since it is attached to the processing jig 9 with the claw part 7 facing upward, the cylinder hole 2 of the cylinder part 3 and the seal groove 34 and boot groove 35 provided in the cylinder hole 2 are , Oku-Neguri Part 3
3, the inner surface 8b of the connecting part 8, and the claw part 7.
Cutting of the main parts of the caliper 1, such as cutting of the inner side surface 36 and boring of the pin holes 54 and 55 of the left and right pin supports 5 and 6, is carried out once the main parts of the caliper 1 are mounted on the processing jig 9 as described above. This eliminates the inconvenience of having to use multiple types of conventional machining jigs and replace them for each process, making it easier to cut the caliper 1. It has become possible to perform the process efficiently and to perform automatic cutting.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, in which Fig. 1 is a partially omitted plan view of a processing jig, Fig. 2 is a view taken in the direction of the X arrow in Fig. 1, and Fig. 3 is a Y-Y line in Fig. 1. Fig. 4 is a cross-sectional view taken along the Z-Z line in Fig. 1, Fig. 5 is a vertical sectional side view of the main part of the hole processing machine, Fig. 6 is a plan view of the workpiece mounting base, and Fig. 7 is a cutaway view taken along the line arrow. 6 is a front view, FIG. 8 is a plan view showing the arrangement of the processing machine, FIG. 9 is a front view of the caliper, and FIG. 10 is a longitudinal sectional side view of FIG. 9. Explanation of symbols: 1...Caliper, 2...Cylinder hole, 3...Cylinder part, 3a...End face part, 4...
...Support arm, 4a...Left and right lower surface parts, 4b...Right and left upper surface parts, 5, 6...Pin support part, 7...Claw part, 8...
...Connection part, 8a...Left and right center lower surface part, 8d...Side end part, A, B...Top surface pushing part, D...End face pushing part, F...Side end pushing part, C...Center bearing part, a,
b...Right and left support parts, f...Side end support parts, d, e...
...Left and right lower support parts.

Claims (1)

[Scope of utility model registration request] The cylinder part, the left and right pin support parts formed on the outer side of the support arms extending left and right from the cylinder part, the claw parts located facing the cylinder holes of the cylinder part, and the connection connecting the claw parts to the cylinder part and a left and right support part and a center support part that respectively support the left and right lower surface parts of the left and right support arms and the left and right center lower surface part of the connecting part, with the caliper of the brake device in a position where the claw part faces upward. A top surface pushing part that contacts the left and right upper surfaces of the arm and pushes the caliper toward the left and right support parts, a side end support part that supports one left and right side end of the connection part, and a side end support part that supports the left and right side ends of the connection part. A side end pushing part that presses the caliper toward the side end support part by contacting the side end part of A jig for machining a caliper, comprising an end face pushing part that comes into contact with the end face pushing part to push the caliper toward the left and right lower support parts.