CN221312613U - Quick-change drilling jig for machining sloping cam plate runway holes - Google Patents

Abstract

The utility model relates to a quick-change drill jig for processing a sloping cam plate runway hole, which comprises a clamp assembly and a drill jig assembly, wherein the drill jig assembly comprises a drill bushing, a drill jig plate, a first bolt and a second bolt, the drill bushing is arranged in the drill jig plate, the first bolt and the second bolt are arranged in the drill jig plate, the second bolt is arranged on one side of the first bolt, the clamp assembly comprises a base, a lining, a locating piece and a pressing block, the base is used for bearing a workpiece, the lining is arranged on the base, the position of the lining corresponds to that of the first bolt, the locating piece is connected with the base, the locating piece drives the pressing block to press the workpiece, the drill jig plate is arranged above the base, and the drill bushing is positioned above the workpiece. The quick-change drilling jig for machining the sloping cam plate runway holes can save the machining cost, greatly shorten the production-changing preparation time and effectively improve the production efficiency.

Description

Quick-change drilling jig for machining sloping cam plate runway holes

Technical Field

The utility model relates to the technical field of swash plate processing equipment of a straight-shaft plunger pump, in particular to a quick-change drill jig for processing a swash plate runway hole.

Background

The swash plate is an important part in the plunger pump, and the current machining mode is to position/orient through a cylindrical pin and a diamond pin on the base of the original clamp, and then to drill holes in a machining center after being pressed by a set screw on the original clamp. The clamp is corrected before the machining process is realized, the original clamp is fixed on the machining center, the cylindrical pins on the clamp are corrected by the adsorbable pointer on the main shaft of the machining center (generally in the range of 0.02), after the correction is finished, the workpiece to be machined is positioned/oriented through the cylindrical pins and the diamond pins on the base, and finally the workpiece can be machined after the workpiece is screwed by the pressing blocks and the screws on the original clamp, so that the whole preparation process is not less than 1 hour. In addition, when the hydraulic pump is of multiple varieties and small batches, frequent production changes are encountered in the production arrangement, and the production efficiency is greatly reduced if the correction/preparation work is performed every time the production changes. Because the accuracy required by the hydraulic pump is high, the requirement of most parts in the hydraulic pump on the size is high, and therefore, in the situation, the higher requirement is put on the utilization of high-efficiency and high-accuracy equipment of a company, the machining procedures of parts with low size requirements are required to be applied to common equipment for machining as much as possible, and the high-efficiency/high-accuracy equipment is used in the procedures with higher requirement on the size accuracy. Secondly, because the direct hour cost of the part processed on the processing center is relatively high, and the size of the process hole is not the size with high precision (generally, the process hole is communicated with other oil way holes), if the oil way hole can be processed by moving to a common drilling machine for processing, the processing cost of the part is likely to be reduced. The hydraulic pump can be branched into products with different displacement, and the products with different displacement are different in pore size on the sloping cam plate runway.

Disclosure of utility model

The quick-change drill jig for machining the sloping cam plate runway holes, which is used for solving the problems in the prior art, can realize quick production change only by changing the drill sleeve, can save production change preparation time, improves production efficiency, and can be used on parts with different displacement.

The specific technical scheme is as follows: a quick change jig for processing sloping cam plate runway hole, includes anchor clamps subassembly and jig subassembly, the jig subassembly includes the drill bushing, the bushing, first bolt and second bolt, the drill bushing sets up in the bushing, and first bolt and second bolt set up in the bushing, and the second bolt sets up in first bolt one side, the anchor clamps subassembly includes the base, the bush, setting element and briquetting, and the base is used for bearing the machined part, the bush sets up on the base, and the bush position corresponds with first bolt, the setting element is connected with the base, and the setting element drives the briquetting and compresses tightly the machined part, the bushing sets up in the base top, and the drill bushing is located the machined part top.

In some embodiments, the fixture assembly includes a cylindrical pin and a diamond pin, each of which is disposed in correspondence with a locating hole of the work piece.

In some embodiments, the base is provided with a threaded hole, and the positioning member is in threaded connection with the threaded hole.

In some embodiments, the positioning member is a screw.

In some embodiments, the first pins are at least two, and the second pins are the same as the first pins.

In some embodiments, the first pin is located at a corner of the drill plate.

In some embodiments, there are at least two of the drill collars.

In some embodiments, the first bolt includes an end portion, a supporting portion and a connecting portion, the end portion and the connecting portion are located at two ends of the supporting portion respectively, the diameter of the connecting portion is smaller than that of the supporting portion, and the connecting portion is inserted into the bushing.

In some embodiments, the end portion is disposed in correspondence with a second plug.

The utility model has the technical effects that: the quick-change drilling jig for machining the sloping cam plate runway holes can save the machining cost, greatly shorten the production-changing preparation time and effectively improve the production efficiency.

Drawings

FIG. 1 is a schematic illustration of a quick change jig for machining swashplate runway holes according to an embodiment of the utility model.

FIG. 2 is a schematic view of the section B-B of FIG. 1 according to the present utility model.

FIG. 3 is a schematic view of the section C-C of FIG. 1 in accordance with the present utility model.

Fig. 4 is a top view of a base of an embodiment of the present utility model.

Fig. 5 is a cross-sectional view of a base of an embodiment of the present utility model.

Fig. 6 is a top view of a bushing plate according to an embodiment of the utility model.

FIG. 7 is a schematic illustration of section A-A of FIG. 6 in accordance with an embodiment of the utility model.

Detailed Description

The essential features and advantages of the utility model will be further elucidated with reference to the examples, without however being limited to the embodiments listed.

As shown in fig. 1 to 7, a quick-change jig for machining a swash plate runway hole of the present embodiment includes a jig assembly 10 and a jig assembly 20, the jig assembly 10 is used for fixing a workpiece 30, the workpiece 30 of the present embodiment is a swash plate, and the jig assembly 20 is used for drilling. The drill jig assembly 20 comprises a drill sleeve 1, a drill jig plate 2, a first bolt 3 and a second bolt 4, wherein the drill sleeve 1 is arranged in the drill jig plate 2, the first bolt 3 and the second bolt 4 are arranged in the drill jig plate 2, the second bolt 4 is arranged on one side of the first bolt 3, and the second bolt 4 is used for placing the first bolt 3 to rotate. The fixture assembly 10 comprises a base 5, a lining 6, a positioning piece 7 and a pressing block 8, wherein the base 5 is used for bearing a workpiece 30, the lining 6 is arranged on the base 5, the position of the lining 6 corresponds to that of the first bolt 3, the positioning piece 7 is connected with the base 5, and the positioning piece 7 drives the pressing block 8 to press the workpiece 30. The drill plate 2 is arranged above the base 5, and the drill bushing 1 is arranged above the workpiece 30. In the technical scheme, when clamping a workpiece, the swash plate is positioned on the base 5, then the positioning piece 7 and the pressing block 8 are assembled into an assembly, and the positioning piece is screwed into the threaded hole of the base 5 to form the clamp assembly. When the drill jig assembly is assembled, the drill sleeve 1 is pressed into the hole of the drill jig plate 2, and then the first bolt and the second bolt are matched to be pressed into the hole of the drill jig plate 2. The first bolt and the second bolt in the assembled drill jig assembly are put into the holes of the mounting bush 6 in the base 5, and the holes on the swash plate runway of the machined part can be machined after the assembly is completed.

Through the technical scheme, the quick-change drilling jig for machining the swash plate runway holes has the advantages of being compact in structure, ingenious in configuration, simple and practical in design, capable of achieving quick-change requirements of machining parts with different displacement of the same type of products, capable of avoiding repeated manufacturing of the drilling jig and reducing machining cost of the parts. Has the advantages of quick change: the drill jig is mainly characterized in that if the sizes of small holes on runways of parts with the same type and different displacement are different, the drill jig can be used in machining, and a new drill jig can be assembled by only replacing drill sleeves according to the small holes with different sizes of machined parts. Secondly: according to the processing of the parts with different displacement according to the same model, only the drill bushing is required to be replaced, the processing device is particularly suitable for production modes with multiple varieties and small batches, and only the drill bushing of the drill plate is required to be replaced when the production is replaced each time, so that the production replacement requirement can be rapidly met, the production replacement preparation time is greatly saved, and the production efficiency is greatly improved.

In this embodiment, the fixture assembly 10 includes a cylindrical pin 101 and a diamond pin 102, which are disposed corresponding to the positioning holes 301 of the workpiece 30. And when the swash plate is clamped, positioning holes of the swash plate are respectively arranged in cylindrical pins and diamond pins of the base. The base 5 is provided with a threaded hole 51, and the positioning piece 7 is in threaded connection with the threaded hole 51, so that the pressing block is conveniently pressed by screwing, and the positioning piece is a screw. At least two first bolts 3 are arranged, and the number of second bolts 4 is the same as that of the first bolts, so that the installation of the drilling jig assembly is more stable. The first bolts 3 are located at the corners of the drill plate, and two first bolts 3 are arranged at the diagonal corners of the drill plate in the embodiment, so that the installation is stable. At least two drill bushings 1 can be adjusted according to the machining condition of the swash plate.

In this embodiment, the first pin 3 includes an end portion 31, a supporting portion 32 and a connecting portion 33, where the end portion 31 and the connecting portion 33 are located at two ends of the supporting portion 32, the diameter of the connecting portion 33 is smaller than that of the supporting portion 32, and the connecting portion 33 is inserted into the bushing 6, so as to facilitate the plug-in connection of the first pin 3. The end head 31 is arranged corresponding to the second bolt 4, and the second bolt 4 can interfere with the end head 31 to prevent the end head from rotating.

The quick-change drilling jig for machining the sloping cam plate runway holes can save correction time and improve production and machining efficiency. Meanwhile, when frequent production replacement is performed, after the detachable drill jig is adopted, the drill bushing can be quickly replaced for processing products with the same type and different displacement, so that quick production replacement of processing parts can be realized, the production replacement preparation time is greatly saved, and the production replacement preparation time is further shortened. Finally, because the machining center belongs to high-precision machining equipment, the hour cost of parts machined by the equipment is high; the technical requirement of the hole to be processed in the working procedure of the part belongs to the oil way hole, if the technical requirement is not very high, the unnecessary waste of equipment can be caused if the processing center is continuously adopted for processing, meanwhile, the occupation of public resources which are higher in technical requirement and need to be processed by the processing center is occupied, and after the removable drilling jig is adopted, the processing in the working procedure can be realized only by a common drilling machine. Therefore, after the removable drill jig is adopted for processing, firstly, the time for product replacement and processing preparation can be shortened, and the production efficiency can be improved; secondly, the direct cost of the working procedure processing of the parts can be reduced; thirdly, the occupation of public resources of high-precision equipment can be avoided.

It should be noted that the foregoing description of the preferred embodiments is merely illustrative of the technical concept and features of the present utility model, and is not intended to limit the scope of the utility model, as long as the scope of the utility model is defined by the claims and their equivalents. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (9)

1. A quick change jig for processing sloping cam plate runway hole, includes anchor clamps subassembly and jig subassembly, its characterized in that, the jig subassembly includes the drill bushing, and the jig plate, first bolt and second bolt, the drill bushing sets up in the jig plate, and first bolt and second bolt set up in the jig plate, and the second bolt sets up in first bolt one side, the anchor clamps subassembly includes the base, and the bush, locating part and briquetting, the base is used for bearing the machined part, the bush sets up on the base, and the bush position corresponds with first bolt, the locating part is connected with the base, and the locating part drives the briquetting and compresses tightly the machined part, the jig plate sets up in the base top, and the drill bushing is located the machined part top.

2. The quick change jig for machining a swash plate runway hole according to claim 1 wherein the jig assembly comprises cylindrical pins and diamond pins, each of which is disposed in correspondence with a locating hole of a work piece.

3. The quick change jig for machining a swash plate runway hole according to claim 2 wherein the base is provided with a threaded bore and the locating member is threadedly connected to the threaded bore.

4. The quick change jig for machining a swash plate runway hole of claim 1 wherein the locating element is a screw.

5. The quick change jig for machining a swash plate runway hole according to claim 1 wherein there are at least two first pins and the number of second pins is the same as the number of first pins.

6. The quick change jig for machining a swash plate runway hole of claim 5 wherein the first spigot is located at a corner of the jig plate.

7. The quick change jig for machining a swash plate runway hole according to claim 1 wherein there are at least two of the drill bushings.

8. The quick change jig for machining a swash plate runway hole according to claim 1 wherein the first pin includes an end portion, a support portion and a connection portion, the end portion and the connection portion being located at both ends of the support portion, respectively, the connection portion having a smaller diameter than the support portion, the connection portion being inserted into the bushing.

9. The quick change jig for machining a swash plate runway hole according to claim 8 wherein the end head is provided in correspondence with a second plug pin.