CN102000856B - General drill jig - Google Patents

Abstract

The invention discloses a universal drilling jig, which comprises a jig base, a workpiece first positioning assembly and a workpiece second positioning assembly respectively arranged on the left and right parts of the jig base, and respectively arranged on the middle left and middle right of the jig base. The first drilling template positioning assembly and the second drilling template positioning assembly on the upper part are characterized in that: two drilling templates are respectively connected with the upper ends of the first drilling template positioning assembly and the second drilling template positioning assembly. The universal base of the present invention is processed by adding corresponding drilling jigs. By exchanging the drilling jigs, not only can the production management cost be saved, but also the design and manufacturing costs of tooling can be reduced, thus breaking the traditional way of designing one set of fixtures for one product.

Description

A Universal Drilling Fixture

technical field

The invention relates to a machining fixture, in particular to a general drilling fixture.

Background technique

With the development of the market economy, the needs of users are constantly changing, the speed of product upgrading is accelerating, and there are more and more varieties. Therefore, the batch size of orders is small and the diversification of products is becoming more and more obvious. The mode of small and medium batch production is becoming more and more prominent. In order to meet the multi-variety and small-batch production mode, a variety of tooling and molds are required conventionally, resulting in increased production costs. However, after careful observation and summary, it is not difficult to find that the structure of some products mainly produced in small batches and multi-variety heavy vehicles is always similar, and their positioning principles are basically the same. For example: for the processing of each hole on the leaf spring surface of the series cast I-beam shaft body, when drilling the leaf spring surface, use the outer circle of the kingpin hole to divide and position the process surface (bottom surface). For the process formulation and The tooling design can be processed with a common base and corresponding drilling jigs. By exchanging the drilling jigs, it can not only save production management costs and meet the needs of lean production, but also reduce the design and manufacturing costs of tooling.

Contents of the invention

The purpose of the present invention is to provide a general drilling jig, which can be used for drilling various components with similar structures, which can not only save production management costs, but also reduce tooling design and manufacturing costs.

A general drilling jig according to the present invention comprises a jig base, a workpiece first positioning assembly and a workpiece second positioning assembly respectively arranged on the left and right parts of the jig base, and respectively arranged on the left and right parts of the jig base. The first drill template positioning component and the second drill template positioning component (the two components have the same structure) on the middle right part are characterized in that: the two drill templates are respectively connected with the first drilling template positioning component and the second drilling template positioning component. Upper positioning connection.

Said a kind of universal drilling jig, the first positioning assembly of the workpiece is composed of a fixed base, an auxiliary support and an upper guide plate respectively arranged on the left and right parts of the upper end of the fixed base, and a V below the upper guide plate. The type block and the handle connected to the V-type block through the auxiliary support, and its fixed base is positioned and connected with the fixture base through pins and screws;

The workpiece second positioning assembly is composed of an adjustment base, an upper guide plate and an auxiliary support respectively arranged on the left and right parts of the upper end of the adjustment base, a V-shaped block arranged under the upper guide plate and connected with the V-shaped block through the auxiliary support. The two sides of the bottom surface of the adjustment base are connected with the corresponding T-slots on the fixture base through T-bolts, and the guide groove in the middle of the bottom surface of the adjustment base is connected with the first guide on the fixture base. The block cooperates, and the adjustment base can slide left and right along the first guide block.

The above-mentioned general-purpose drilling jig is characterized in that: the first drilling template positioning assembly is composed of a left base groove, a cylindrical pin and a diamond-shaped pin arranged on the edge of the notch of the left base, and the left base The two sides of the bottom surface of the groove are connected with the corresponding T-shaped groove on the base of the fixture through T-bolts, and the guide groove set in the middle of the bottom surface of the left base groove cooperates with the second guide block on the base of the fixture. The seat groove can slide left and right along the second guide block;

The second drilling template positioning assembly is composed of a right base groove, a cylindrical pin and a rhombus pin on the edge of the notch of the right base, and the two sides of the bottom surface of the right base groove are connected to the fixture base by T-shaped bolts. Corresponding T-shaped slots are matched and connected, and the guide groove located in the middle of the bottom surface of the right base groove cooperates with the third guide block located on the fixture base, and the right base groove can slide left and right along the third guide block.

In the general-purpose drilling jig described above, handles are provided at both ends of the drilling template, and the middle part is provided with two cylindrical pins and two diamond-shaped pins corresponding to the left base groove and the right base groove respectively. The positioning holes and multiple process holes; the drilling template is positioned through the four positioning holes on it and the two cylindrical pins and two diamond pins on the left and right base grooves, and through the positioning on the left base Bolt and nut and washer on slot and right base slot.

In the general-purpose drilling jig described above, a side column positioned and connected to the jig base is further provided between the left base groove and the right base groove.

The general-purpose drilling jig described above is further provided with a pressing plate assembly positioned and connected to the base of the fixture between the left base groove and the right base groove. With positioning plate.

In the general-purpose drilling jig, the two cylindrical pins and the two rhombic pins arranged on the edge of the opening of the left base groove and the right base groove are respectively connected with the left base groove and the right The latch bushing fits in the dowel hole of the base slot.

The positioning principle of this set of fixtures adopts the relevant national fixture standard design, and the generalization of the fixture is mainly designed, that is, one fixture body can be interchanged with multiple sets of drilling templates to meet the needs of different product leaf spring surface processing.

The base of the fixture body is a cast iron structure, and a T-shaped slot corresponding to the adjustable V-shaped positioning part and the positioning base of the drilling mold is designed on the plane, and it is guided by a guide block so that the V-shaped positioning part and the positioning base of the drilling mold can The base can slide freely to meet the needs of different products; the V-shaped positioning part is designed as a welded structure + screw connection, and the V-shaped block can be adjusted; The fixed center distance and the positioning pin hole and threaded hole of the pin bushing are convenient for connecting the drilling template and the positioning base with cylindrical pins and diamond pins, which have good interchangeability and ensure the reliability of connection and use. The interchangeable drilling jigs are designed with positioning pin holes and threaded holes corresponding to the positioning base of the drilling jigs for easy connection.

The universal base of the present invention is processed by adding corresponding drilling jigs. By exchanging the drilling jigs, not only can the production management cost be saved, but also the design and manufacturing costs of tooling can be reduced, thus breaking the traditional way of designing one set of fixtures for one product.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the B-B view of Fig. 1;

Fig. 4 is the K direction view of Fig. 1;

Fig. 5 is the structural representation of drilling formwork;

Fig. 6 is the AA sectional view of Fig. 5;

Fig. 7 is the main view of the integral king pin hole shaft body;

Figure 8 is a top view of Figure 7;

Fig. 9 is a front view of the split kingpin hole shaft body;

FIG. 10 is a top view of FIG. 9 .

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a general-purpose drilling jig is shown, which includes a jig base 3, and first positioning workpieces respectively arranged on the left and right parts of the jig base. assembly and the second positioning assembly of the workpiece, the first drilling template positioning assembly and the second drilling template positioning assembly (the two components have the same structure), and the two drilling templates 11 are respectively arranged on the left part and the middle right part of the fixture base. The upper ends of the first drilling template positioning component and the second drilling template positioning component are positioned and connected.

The workpiece first positioning assembly consists of a fixed base 20, an auxiliary support 5 and an upper guide plate 6 respectively arranged on the left and right parts of the upper end of the fixed base, a V-shaped block 7 arranged under the upper guide plate and passing through the auxiliary support 5. It consists of a handle 4 connected to the V-shaped block 7, and its fixed base 20 is positioned and connected with the fixture base 3 through pins and screws;

The second positioning assembly of the workpiece is composed of an adjustment base 23, an upper guide plate 6 and an auxiliary support 5 respectively arranged on the left and right parts of the upper end of the adjustment base, a V-shaped block 7 arranged under the upper guide plate and passing through the auxiliary support 5. The handle 4 connected with the V-shaped block 7 is composed, the two sides of the bottom surface of the adjustment base 23 are connected with the corresponding T-shaped grooves on the fixture base 3 through T-shaped bolts, and the guide groove in the middle of the bottom surface of the adjustment base 23 Cooperating with the first guide block 18 provided on the fixture base 3, the adjustment base 23 can slide left and right along the first guide block.

The first drilling template positioning assembly is composed of a left base groove 24, a cylindrical latch 9 and a rhombus latch 15 arranged on the edge of the mouth of the left base groove 24. The corresponding T-shaped slots on the fixture base 3 are matched and connected, and the guide groove in the middle of the bottom surface of the left base groove 24 cooperates with the second guide block 8 on the top of the fixture base 3. The left base groove 24 can move along the first Two guide blocks slide left and right;

The second drilling template positioning assembly is composed of a right base groove 16, a cylindrical latch 9 and a rhombus latch 15 arranged on the edge of the mouth of the right base groove 16, and the two sides of the right base groove 16 bottom surface are connected by T-shaped bolts The corresponding T-shaped slots on the clamp base 3 are matched and connected, and the guide groove located in the middle of the bottom surface of the right base groove 16 cooperates with the third guide block 17 located on the top of the clamp base 3. The right base groove can be aligned along the third The guide block slides left and right.

The two ends of described drill formwork 11 are provided with handle 25 respectively, and middle part is provided with the positioning holes 26 corresponding to two cylinder pins 9 and two rhombic pins 15 on the left base groove 24 and the right base groove 16 respectively, and A plurality of process holes 27; the drilling template 11 is positioned by four positioning holes 26 on it, and two cylinder pins 9 and two rhombus pins 15 on the left base groove 24 and the right base groove 16, and is positioned by being located on the left The bolts 12, nuts 13 and washers 14 on the base groove 24 and the right base groove 16 are fixed.

Between the left base groove 24 and the right base groove 16, there is also a side column 10 that is positioned and connected to the fixture base 3; the side column 10 is used as the indirect measurement reference B of the product size C (the center distance of the positioning pin hole). In actual use, since the size of the indirect measurement reference B is fixed (it has been done in the fixture manufacturing), according to the product size A, it is enough to ensure the product size C by sliding the left base groove 24 and the right base groove 16 , because the relationship among A, B, and C is: A=C+2B.

Between the left base groove 24 and the right base groove 16, there is also a pressing plate assembly 21 positioned and connected to the clamp base 3, and a positioning plate 22 is respectively arranged on the inner side of the bottom surface of the left base groove 24 and the right base groove 16. .

The two cylindrical bolts 9 and two diamond-shaped bolts on the edge of the left base groove 24 and the right base groove 16 are respectively connected with the positioning pin holes located on the left base groove 24 and the right base groove 16. The inner pin bushing 19 fits.

During processing, firstly, loosen the nut of the pressing plate assembly 21, place the product flat on the positioning plate 22 of the fixture, use a tape measure to measure the distance from the positioning base of the drilling jig to the two ends of the product, roughly divide it into the V shape and then fix it Position the base of the jig on the left, and then use a 15000mm caliper to measure the dimension C between the columns 10, adjust the center distance A of the leaf spring face of the product, which is the center size of the jig, and then fix the jig on the right Position the base, and finally fix the V-shaped base on the right. According to different products, you can fine-tune the V-shaped to make the product size meet the requirements of the drawing, and then press the pressure plate combination, and then use the cylindrical pin 9 and the rhombus pin 15 to connect the corresponding drilling template 11 Position it on the positioning base of the drilling jig, fasten it with two bolts, nuts and washers, and then the product can be processed. Of course, depending on the product type, the selected drilling template 11 is also different, but the basic principles are the same.

Embodiment 1: Referring to Fig. 1, Fig. 7 and Fig. 8, the workpiece 1 to be processed is placed in the left base groove 24 and the right base groove 16, and the left end of the workpiece 1 is in contact with the V-shaped block 7 of the first workpiece positioning assembly Contact, the right end and the V-shaped block 7) of the second workpiece positioning assembly; the bottom surface is positioned with a positioning plate 22 to ensure that the processed workpiece 1 is horizontal, and fixed by the pressing plate combination 21, it can be processed.

Embodiment 2: Referring to Fig. 1, Fig. 9 and Fig. 10, the workpiece 2 to be processed is placed in the left base groove 24 and the right base groove 16, and the left end of the workpiece 2 is aligned with the V-shaped block 7 of the first workpiece positioning assembly Contact, the right end and the V-shaped block 7 of the second workpiece positioning assembly are close to each other; the bottom surface is positioned with a positioning plate 22 to ensure that the processed workpiece 2 is horizontal, and it can be processed by fixing the pressing plate combination 21.

Claims (5)

1. general boring grab; Comprise clamp base (3), respectively be located at clamp base left part and first positioning component of the workpiece above the right part and workpiece second positioning component, be located at left part and the first bushing plate positioning component above the middle right part and the second bushing plate positioning component in the clamp base respectively, it is characterized in that: two bushing plates (11) are located by connecting with the upper end of the first bushing plate positioning component and the second bushing plate positioning component respectively;

The supplemental support (5) that said workpiece first positioning component is located at fixed pedestal upper end left part and upper end right part by fixed pedestal (20), respectively and upper guide plate (6), be located at below the upper guide plate V-block (7) with pass the handle (4) that supplemental support (5) is connected with V-block (7) and form, its fixed pedestal (20) is located by connecting through pin and screw and clamp base (3);

Said workpiece second positioning component by regulate pedestal (23), respectively be located at the upper guide plate (6) of regulating pedestal upper end left part and upper end right part and supplemental support (5), be located at below the upper guide plate V-block (7) with pass the handle (4) that supplemental support (5) is connected with V-block (7) and form; The both sides of regulating pedestal (23) bottom surface through T type bolt be located at clamp base (3) and go up corresponding T type groove and be connected; Be located at gathering sill first guide pad (18) top with being located at clamp base (3) of regulating middle part, pedestal (23) bottom surface and cooperate, regulating pedestal (23) can horizontally slip along first guide pad.

2. a kind of general boring grab according to claim 1; It is characterized in that: the said first bushing plate positioning component is made up of left base seat groove (24), the cylinder latch (9) and the rhombus latch (15) that are located on left base seat groove (24) the oral area edge; The both sides of base seat groove (24) bottom surface, a left side through T type bolt be located at clamp base (3) and go up corresponding T type groove and be connected; Gathering sill second guide pad (8) top with being located at clamp base (3) that is located at middle part, left base seat groove (24) bottom surface cooperates, and left base seat groove (24) can horizontally slip along second guide pad;

The said second bushing plate positioning component is made up of right base seat groove (16), the cylinder latch (9) and the rhombus latch (15) that are located on right base seat groove (16) the oral area edge; The both sides of right base seat groove (16) bottom surface through T type bolt be located at clamp base (3) and go up corresponding T type groove and be connected; Gathering sill three guide pad (17) top with being located at clamp base (3) that is located at middle part, right base seat groove (16) bottom surface cooperates, and right base seat groove can horizontally slip along the 3rd guide pad.

3. a kind of general boring grab according to claim 2 is characterized in that: between left base seat groove (24) and right base seat groove (16), also be provided with the heel post (10) that is located by connecting on the clamp base (3).

4. a kind of general boring grab according to claim 2; It is characterized in that: between left base seat groove (24) and right base seat groove (16), also be provided with the pressing plate combination (21) that is located by connecting on the clamp base (3), be respectively equipped with location-plate (22) in the inboard of left base seat groove (24) and right base seat groove (16) bottom surface.

5. a kind of general boring grab according to claim 2; It is characterized in that: a said cylinder latch (9) and the rhombus latch on left base seat groove (24) the notch edge, a cylinder latch (9) and rhombus latch on right base seat groove (16) the notch edge of being located at, respectively with the dowel hole that is located at left base seat groove (24) and right base seat groove (16) in latch lining (19) cooperate .

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