CN204639225U - A kind of mould for thread mill drilling - Google Patents

Abstract

The utility model discloses a kind of mould for thread mill drilling, comprise clamp body and be connected to the moving press plate of a pair symmetrical distribution above it by studs, the bushing plate of being located by centration axis is provided with between a pair moving press plate, be provided with part to be processed and gripper shoe successively below bushing plate, gripper shoe is connected on clamp body by gripper shoe screw.This mould adopts the location way in " hole, two sides one ", using part Φ 10 hole, the clamping mold that coordinates right-angle surface and lower surface to use as positioning datum.Parts machining is convenient, and operation easier is little, and during maintenance, clamp body and bushing plate can independently be repaired, and can save processing maintenance cost.

Description

A mold for machining threaded holes

technical field

The utility model relates to a mold for machining screw threads by a vertical drilling machine, in particular to a mold for machining threaded holes.

Background technique

The limit block is the "iron block" that limits the position. The limit block is fixed on the relevant parts of the machine tool with screws, and the stroke is controlled. There are fixed types and adjustable types. The position of the limit block is different for different machine tools. Most of them are placed near the guide rail of the machine tool. After the sliding table touches the limit block, the cutting position (length, depth, etc.) is fixed. It is a small and medium-sized part on a general machine tool. In order to improve labor productivity, ensure processing quality and reduce labor intensity , It is necessary to design a special fixture for processing M8 threaded holes. This mold will be used for vertical drilling machine 525, and the tools are straight shank twist drills and taps.

Utility model content

The purpose of the utility model is to provide a special clamping mold for processing the threaded hole in the limit block. The mold considers the machining accuracy. The positioning method of "two sides and one hole" is adopted, and the clamping mold is used with a Φ10 hole of the part, the right-angled surface and the lower surface as the positioning reference.

The purpose of this utility model is achieved through the following technical solutions:

A mold for processing threaded holes, including a clamp body and a pair of symmetrically distributed moving platens above it connected by double-headed studs, and a drilling template positioned by a centering shaft is arranged between the pair of moving platens. The parts to be processed and the support plate are sequentially arranged under the drilling template, and the support plate is connected to the clamp body through the support plate screws.

Preferably, a bar-shaped hole is provided on the moving platen, and a pair of moving platens can move parallel to both sides along the studs penetrating through the bar-shaped hole.

Preferably, a replaceable washer and a cylindrical screw compression spring are placed under the stud hole of the movable platen for passing through the double-ended stud.

Preferably, the front end of the drilling template is clamped by a pair of moving platens, and the rear part is positioned on the clamping body through the fixing screws of the drilling template.

Preferably, the centering shaft runs through the drill template, the parts to be processed, the support plate and the clamp body, and a drill sleeve is arranged above the centering shaft.

The utility model has the following beneficial effects:

1) It has a fixed structure. The mold is divided into a clamp body and a movable platen. The two can be matched together and fixed with screws and nuts to ensure the accuracy and precision of the size when drilling.

2) Low manufacturing cost and easy maintenance. During maintenance, the clamp body and the movable platen can be repaired independently, which can save processing and maintenance costs.

3) Easy to process. The mold parts are easy to process and less difficult to operate.

4) Easy to assemble and easy to disassemble. The utility model relates to a special clamping die for processing holes drilled in an upper die base.

Description of drawings

Figure 1 is a schematic diagram of the mold structure.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a side view of FIG. 2 .

Fig. 4 is a schematic diagram of the structure of the processed workpiece.

In the figure: 1. Moving platen; 2. Supporting nails for moving platen; 3. Type II hexagonal nut; 4. Double-headed stud; 5. Washer; 6. Drill sleeve screw; 7. Drill sleeve; 8. Support plate screw; 9. Support plate; 10. Replaceable washer; 11. Cylindrical screw compression spring; 12. Type I hexagonal nut; 13. Clamp body; 14. Fixing screw for drilling template; 15. Bushing for drill sleeve; 16. Centering shaft; 17. Stop pin; 18. Drill template; 19. Parts to be processed.

19-1, chamfering of 12×12; 19-2, chamfering of 15×15; 19-3, through hole I; 19-4, through hole II; 19-5, threaded hole.

Detailed ways

Below by accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1, the mold for processing threaded holes includes a clamp body 13 and a pair of movable pressing plates 1 that are symmetrically distributed on the left and right above it through studs 4, and a pair of moving pressing plates 1 is provided between them. The drill template 18 positioned by the centering shaft 16 is provided with parts to be processed 19 and a support plate 9 below the drill template 18 successively, and the support plate 9 is connected on the clamp body 13 by the support plate screw 8 .

As shown in FIG. 2 , a bar-shaped hole is provided on the moving platen 1 , and the moving platen 1 can move parallel to both sides along the studs 4 passing through the bar-shaped hole to clamp and release the drilling template 18 .

Among them, the double-ended stud 4 is provided with a type II hexagonal nut 3 and a type I hexagonal nut 12 connected to the M10mm stud. Replace the washer 10 and the cylindrical screw compression spring 11.

As shown in FIG. 2 , the front end of the drill template 18 is clamped by a pair of moving platens 1 , and the rear part is positioned on the clamp body 13 by the drill template fixing screws 14 .

As shown in FIG. 3 , the centering shaft 16 runs through the drill template 18 , the parts to be processed 19 , the support plate 9 to the clamp body 13 , and the drill sleeve 7 is arranged above the centering shaft 16 .

This can prepare the special clamping mold for processing the M8mm threaded hole in the processing limit block, and the moving pressing plate 1 can press the parts to be processed on the clamping body 10 to form a complete mold.

Among them, the mold is positioned in the way of "two sides and one hole" to limit 6 degrees of freedom to ensure the accuracy of the mold's processed holes. That is: a clamping mold that uses a Φ10mm hole of the part, the matching right-angled surface and the lower surface as the positioning reference to limit all six degrees of freedom.

The replaceable washer 10 is not an ordinary washer, but a quick-change washer, so that the washer can be easily removed, and the cylindrical screw compression spring 11 can bounce the moving platen 1 to a height, creating a space for taking out parts.

A specific embodiment is given below to further illustrate the utility model.

As shown in Figure 4, select No. 45 steel with a size of 60mm×60mm to be processed, among which 19-1 is a chamfer of 12×12, 19-2 is a chamfer of 15×15, and 19-3 is 15mm from the right side , A through hole I with a distance of 13mm from the bottom end surface and a diameter of 10mm. 19-4 is a through hole II with a distance of 45mm from the right side, 13mm from the bottom end surface, and a diameter of 10mm. 19-5 is a threaded hole that is 15mm away from the right side, 45mm away from the bottom end face, and has a diameter of 8mm.

Referring to shown in Fig. 2, the using method of mold of the present utility model comprises the following steps:

1) Assemble each part according to Figure 1;

As shown in Figure 2 and Figure 3, the clamp body 13 is placed on a plane (vertical drilling machine), the M10mm double-ended stud 4 is placed on the clamp body 13, and the M10mm type I hex nut 12 and cylindrical screw are placed in sequence to compress Spring 11 and spring washers 10 can be replaced, and M8mm support plate screws 8 and A×80mm support plate 9 are placed. At this time, two Φ10mm threaded holes need to be processed on the clamp body to fix the movable platen 1. Putting the centering shaft 16 and the stop pin 17 at the specified position is used to determine the specific position of the part 19 to be processed. The specific position needs to be processed on the chuck body 13 with a positioning hole of Φ10mm to determine the specific position. Place the drill sleeve screw 6 and the drill sleeve 7, and then place the movable platen 1, the movable platen support nail 2, the washer 5, the M10mm type II hexagon screw 3, the drill template fixing screw 14, the drill sleeve bushing 15, and the center of the drill sleeve The axis needs to be on a straight line with the central axis of the machined space;

2) Remove the two replaceable drill sleeves of the washer 5, and the moving pressure plate will bounce up to a certain height, then it can be taken out and put into the parts to be processed. Every time the parts to be processed are replaced, the processing position of the parts to be processed needs to be determined according to the positioning pins In the tightening process, the machining accuracy is guaranteed at one time;

3) Put 2 replaceable washers 10 for fixing;

4) Process threaded holes with a diameter of M8mm;

5) Disassemble the drill sleeve 7, and take out the processed parts;

6) Repeat the above process to process the same kind of parts.

The above is only the clamp embodiment of the utility model, and the above-mentioned embodiment does not limit the utility model in any way, any simple modification, change and modification made according to the scope of the technical solution of the utility model and the above examples Equivalent structural changes still belong to the protection scope of the technical solution of the utility model.

Claims (5)

1. the mould for thread mill drilling, it is characterized in that: comprise clamp body (13) and the moving press plate (1) by the square thereon a pair symmetrical distribution of Stud connection, the bushing plate (18) by centration axis (16) is provided with between a pair moving press plate (1), bushing plate (18) below is provided with part to be processed (19) and gripper shoe (9) successively, and gripper shoe (9) is connected on clamp body (13) by gripper shoe screw (8).

2. the mould for thread mill drilling according to claim 1, it is characterized in that: described moving press plate (1) is provided with bar hole, a pair moving press plate (1) can move in parallel along through the studs (4) in bar hole to both sides.

3. the mould for thread mill drilling according to claim 2, is characterized in that: the below for moving press plate (1) stud bolt hole running through studs (4) is lined with interchangeable packing ring (10) and roller screw Compress Spring (11).

4. the mould for thread mill drilling according to claim 1, it is characterized in that: described bushing plate (18) leading section is clamped by a pair moving press plate (1), rear portion is positioned on clamp body (13) by bushing plate hold-down screw (14).

5. the mould for thread mill drilling according to claim 1, it is characterized in that: described centration axis (16) is through bushing plate (18), part to be processed (19), gripper shoe (9) in clamp body (13), and centration axis (16) top is provided with drill bushing (7).