CN107552845A - Tie-plate hinge type drill jig - Google Patents

Abstract

The invention discloses a joint plate hinged drilling mold, which belongs to the technical field of process equipment and can ensure the positional requirements of the end surface hole processing of the joint plate parts in batch production and realize fast clamping and disassembly of the parts. The hinged drilling mold is, It is a hinged drilling jig based on a circular eccentric clamping mechanism, including the clamping parts rotating in the Z direction and positioning pins, etc. to form the third component, and cooperate with the V-shaped block to realize the rapid positioning and clamping of the parts; it also includes the third part. One component is fixed on the machine table by bolts, and the positioning of the parts table is realized by the V-shaped block that can move along the guide plate groove; the second component is fixed on the vertical plate of the first component by bolts to form a hinge structure , can realize the rotation of the template along the Y-axis direction; the invention can realize fast clamping and fixing of parts during processing preparation, ensure the positional requirements of machining, and realize fast disassembly of parts.

Description

Joint plate hinged drilling mold

technical field

The invention belongs to the technical field of process equipment, and relates to a hinge type drilling mold device used for machining connection disc holes.

Background technique

In the process of mechanical processing, when drilling axial holes of disc parts, the method of scribing and positioning is generally used when the drilling mold is not designed. This processing method requires a long time for the fitter to prepare, and it cannot guarantee the accuracy of the product. Quality Consistency. Therefore, in mass production, craftsmen need to design special drilling jigs to process connecting disc parts. Generally, a detachable drilling template is directly placed on the surface of the workpiece to be processed, the parts are clamped with a vise or a pressure plate, and the positioning of the parts is realized with a limit block.

For a special-shaped coupling plate that this design is aimed at, the common structure of the drilling template cannot be well suited for the machining of the six axial holes of the part. Considering how to quickly locate the clamping parts, and how to ensure the product processing quality and size requirements, this design proposes a hinged jig based on a circular eccentric clamping mechanism. The design of this structural jig combines the advantages of traditional jigs and jigs, enabling fast clamping and dismounting of parts, while ensuring the positional requirements of axial hole processing.

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is to provide a joint disc hinge type drilling jig, which is aimed at drilling the axial hole of a special-shaped joint disc, and proposes a drilling jig suitable for mass production, which can shorten the processing time. Preparation time, guarantee hole processing requirements.

(2) Technical solutions

In order to solve the above-mentioned technical problems, the technical solution of the present invention is a joint plate hinge type drilling mold, which is characterized in that the drilling mold includes a claw, a claw body, an eccentric groove disc, a base, a handle, and a positioning pin; the upper end of the positioning pin It is fixed with the claw; there are three evenly distributed eccentric arc guide grooves on the eccentric groove disc, the center line of the eccentric arc guide groove is a circular arc, and the center of the arc does not coincide with the center of the eccentric groove disc. The distance from both ends of the two ends of the eccentric groove disc to the center of the eccentric groove disc increases from small to large in the clockwise direction; the lower end of the positioning pin is installed in the eccentric arc guide groove of the eccentric groove disc, and can slide along the eccentric arc guide groove; the claw body has a diameter The claws can be loaded into the claw body along the direction of the groove; the claws can be loaded and slid along the direction of the guide groove; the disc of the eccentric groove is set on the outer periphery of the central part of the claw body, and the outer peripheral part of the claw body Located on the eccentric groove disc, the outer circle at the lower end of the outer peripheral part of the jaw body matches the inner hole of the eccentric groove disc, the base is located under the eccentric groove disc and the central part of the jaw body, the central part of the jaw body is in contact with the base fixed.

Preferably, the above-mentioned joint disc hinged drilling mold is characterized in that there are T-shaped protrusion structures on both sides of the claws, and at the same time, there are T-shaped groove structures on both sides of the guide groove of the claw body, so that the two sides of the claws are aligned with the claws. The body guide groove fits.

Preferably, the above coupling plate hinge type drilling mold is characterized in that it also includes a pull, and the handle is connected to the eccentric groove disc along the radial threaded hole on the cylindrical surface of the eccentric groove disc.

Preferably, the above-mentioned joint plate hinged drilling form is characterized in that it also includes the other two parts, the first component and the second component; the first component includes: the base of the welding clamp body, the vertical plate of the welding clamp body, C Type compression screw, support plate, guide plate, movable V-shaped block; the base is connected and fixed with the base of the welding clamp body; the vertical plate of the welding clamp body is fixed with the base of the welding clamp body, and the vertical plate of the welding clamp body is located under the guide plate; the support plate is fixed It is located on the left side of the vertical plate of the welding clamp body; the C-type compression screw passes through the threaded hole of the support plate and the guide groove at the lower end of the guide plate in turn, and the end of the C-type compression screw penetrates into the groove at the left end of the movable V-shaped block, and the movable V The left end of the type block is loaded into the guide groove at the lower end of the guide plate; the second component includes: a drill sleeve, a template, a stud, and a hinge shaft; the lower end of the stud is threaded to cooperate with the threaded hole on the center line of the welding clamp body base; the left end of the template is passed through The hinge shaft is connected with the guide plate of the first component, and the template rotates along the axis of the hinge shaft; the drill sleeve is pressed into the hole on the template corresponding to the position of the workpiece hole; the right end of the template is located on the boss of the upper section of the stud.

Preferably, the above-mentioned joint plate hinged drilling form is characterized in that it also includes a diamond nut; the upper end surface of the stud boss is in contact with the lower end surface of the right end of the template, and the diamond nut is matched with the thread on the stud boss.

Preferably, the above-mentioned connecting disc hinged drilling form is characterized in that the template protrudes at one end of the hinge shaft, so that the template contacts and presses against the end surface of the guide plate after it is opened to a certain angle.

Preferably, the above-mentioned connecting plate hinge type drilling template is characterized in that the drill sleeve includes drill sleeve 1, drill sleeve 2, and 4 drill sleeves 3.

Preferably, the above-mentioned connecting plate hinge type drilling mold is characterized in that it further includes a knurled nut with a hole, and the knurled nut with a hole is connected to the C-shaped compression screw through threads.

Preferably, the above-mentioned connecting plate hinge type drilling mold is characterized in that it also includes a positioning pin, which is inserted into three corresponding holes of a workpiece machining drill sleeve and then inserted into the workpiece.

Preferably, the above-mentioned joint plate hinged drilling form is characterized in that it also includes a nut, and the height of the stud is adjusted by rotating the stud screwed into the depth of the base of the welding clamp body, and the nut is put on for tightening.

In another embodiment, the present invention proposes a hinged jig mold device, the device is composed as follows: 1) the first component

The first component part includes: a welding clamp body (including a vertical plate and a base), a support plate, a guide plate, a movable V-shaped block, a C-shaped compression screw, and a knurled nut with a hole.

This component part is primarily a stationary part of the device. When the drilling device is in use, the base of the welding jig body is fixed on the machine table through bolts and pressure plates; the support plate is fixed on the vertical plate of the welding jig body by four screws, and the guide plate is fixed on the vertical plate of the welding jig body by two screws , by rotating the nut at one end of the C-shaped compression screw to control the V-shaped block to move back and forth along the groove of the guide plate in the second component, so as to realize the positioning of the upper end table of the part.

2) The second component

The second component includes: a hinge shaft, a template, a drill sleeve (3 types), and a pin.

The matching drill sleeve is pressed into the formwork, and connected to the guide plate through the hinge shaft. The insertion end of the hinge shaft penetrates the washer and is fixed with a cotter pin, which can realize the rotation of the formwork along the direction of the hinge axis.

3) The third component

The third component includes: a base, an eccentric groove disc, positioning pins (3 pieces), claw bodies, claws (3 pieces), handles, columns, tightening nuts, diamond nuts, positioning pins, etc.

After the handle is installed on the eccentric groove disc, the handle can be rotated along the circumference of the disc to control the tightening and loosening of the jaws, so as to control the clamping and opening of the parts; the template of the second component can be rotated by the position of the rhombus nut Realize fast opening and closing; the positioning pin is used for the positioning of the part and the drilling jig device after the first hole of the part is processed, so as to prevent the position of the part from changing.

(3) Beneficial effects

In the technical solution of the present invention, the first component and the third component realize the effective rapid positioning and clamping of the part; Good guarantee of parts processing position requirements. The proposal of the present invention greatly shortens the processing preparation time of the connection plate parts targeted by the processing design and ensures good quality consistency of products.

Description of drawings

Figures 1a and 1b are the schematic diagrams of the front view and the top view of the special-shaped joint disc parts respectively

Figure 2 is the overall schematic diagram of the proposed hinged jig device

Figure 3 is a schematic structural view of the first component

Figure 4 is a top view of the first component

Fig. 5 is the structural representation of the second component part

Figure 6 is a top view of the second component

Figure 7 is a schematic structural diagram of the third component

Fig. 8 is a schematic diagram of the working principle of the structure of the third component without the claw body of the present invention;

Fig. 9 is a schematic diagram of the working principle of the claw body structure;

Fig. 10 is a schematic diagram of the working principle of the eccentric circle structure of the third component;

Among them: 1 Welding clamp specific base 2 Welding clamp specific vertical plate 3 Hole knurled nut 4C type compression screw 5 Support plate 6 Guide plate 7 Movable V-shaped block 8 Drill sleeve 19 Template 10 Stud 11 Fastening bolt 12 Hinge shaft 13 Drill sleeve 2 14 Drill sleeve 3 (4 pieces) 15 Diamond nut 16 Claw 17 Claw body 18 Eccentric groove disc 19 Base 20 Handle 21 Positioning pin 22 Positioning pin

detailed description

In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

In order to ensure the positional requirements of the end surface hole processing of the connecting plate parts in batch production, and to realize the fast clamping and dismounting of the parts, a hinged drilling jig based on a circular eccentric clamping mechanism is proposed in the present invention. The first component (welding clamp body) is fixed on the machine table by bolts, and the positioning of the parts table is realized by the V-shaped block that can move along the guide plate groove; the second component is fixed on the vertical plate of the first component by bolts The hinge structure is formed on the top, which can realize the rotation of the template along the Y-axis direction; the clamping parts and positioning pins that rotate along the Z direction form the third component, and cooperate with the V-shaped block to realize rapid positioning and clamping of parts. The proposal of this design can realize the fast clamping and fixing of the parts during processing preparation, ensure the machining position requirements, and realize the quick disassembly of the parts; the design of the rotating end of the template can effectively limit the opening angle of the hinge and reduce the space occupied by the device.

In order to meet the processing position requirements of the six axial holes of the special-shaped land as shown in Figures 1a and 1b and to realize the fast clamping and positioning of the parts, the present invention proposes a hinged jigsaw device based on an eccentric circle structure, as shown in picture 2. The device consists of 3 parts, and the connection of the three components is finally realized through threads and hinge shafts.

As shown in Figure 3, the first component part 100 includes: a welding clamp body base 1, a welding clamp body vertical plate 2, a knurled nut with a hole 3, a C-shaped compression screw 4, a support plate 5, a guide plate 6, a movable V-shaped Block 7 etc. Among them, the U-shaped grooves at both ends of the welding clamp body base 1 are used for the connection between the welding clamp body and the machine tool workbench. After the bolts are inserted into the T-shaped grooves of the machine tool workbench, they are inserted into the U-shaped grooves of the welding clamp body base 1 and a pressure plate is used. Compress the base 1 of the welding clamp body and fix it with nuts; the vertical plate 2 of the welding clamp body is connected with the guide plate 6 through four threaded holes through bolts, and the two pin holes on the vertical plate 2 of the welding clamp body are assembled with the guide plate 6 and passed through The vertical plate 2 of the welding clamp body is located under the guide plate 6; the fixed support plate 5 is located on the left side of the vertical plate 2 of the welding clamp body; the knurled nut 3 with a hole and the C-type compression screw 4 are connected by threads and passed The pin carries out the circumferential limit; the C-type compression screw 4 passes through the threaded hole of the support plate 5, and then the end of the C-type compression screw penetrates into the groove at the left end of the movable V-shaped block 7, and the left end of the movable V-shaped block 7 Put it into the guide groove at the lower end of the guide plate 6, and finally fix the support plate 5 and the vertical plate 2 of the welding clamp body, as shown in the top view of FIG. 4 . By rotating the knurled nut 3 with a hole, the movable V-shaped block 7 can move left and right along the guide groove of the guide plate 6, thereby realizing the positioning of the boss at the upper end of the part.

The second component part 200 includes: drill sleeve one 8, template 9, stud 10, fastening bolt 11, hinge shaft 12, drill sleeve two 13, drill sleeve three 14 (4 pieces), diamond nut 15 and the like.

The lower end of the stud 10 cooperates with the threaded hole on the center line of the welding clamp body base 1 through threads, the height of the stud 10 is adjusted by the screwing depth of the rotating stud 10 and fastened by the nut 11; the left end of the template 9 passes through the hinge shaft 12 Connect with the guide plate 6 of the first component part 100, the penetrating end of the hinge shaft 12 penetrates the gasket and the pin to fix and limit, after fixing, the template 9 can be rotated along the axis of the hinge shaft; the template 9 is at one end of the hinge shaft 12 The design of the protrusion makes the template 9 contact and press against the upper end surface of the guide plate 6 after it is opened to a certain angle, so that the template 9 can be opened at a fixed angle, and the working radius of the jig is reduced; drill bushing one 8, drill bushing two 13, Drill bushing three 14 (4 pieces) are respectively pressed into the hole on the template 9 corresponding to the position of the hole on the workpiece; the template 9 should be kept in the state of putting down when working, and the right end of the template 9 is sleeved on the stud 10 boss, and the screw The upper end face of the post 10 boss should be in contact with the lower end face of the right end of the template 9, and the diamond nut 15 is matched with the thread on the stud 10 boss.

The compression or loosening of the template 9 is realized by rotating the rhombic nut 15 . Schematic diagrams are shown in Figure 5 and Figure 6.

The third component part 300 includes: claw 16, claw body 17, eccentric groove disc 18, base 19, handle 20, positioning pin 21, positioning pin 22, etc., as shown in Fig. 7 and Fig. 8 .

The base 19 is connected and fixed with the welding clamp body base 1 by 4 screws.

The locating pin 22 upper ends are fixed with 16 claws; the locating pin 22 small ends (upper ends) cooperate with the circular holes at the lower ends of the claws 16.

There are three evenly distributed eccentric arc guide grooves on the eccentric groove disc 18, the center line of the eccentric arc guide groove is a section of arc, the center of the arc does not coincide with the center of the eccentric groove disc 18, and the two ends of the arc The distance to the center of the eccentric groove disc 18 increases from small to large in the clockwise direction. Three eccentric arc guide grooves rotate 120 degrees symmetrically.

The large end (lower end) of the locating pin 22 is packed into the eccentric arc guide groove of the eccentric groove disc 18, and the large end (lower end) of the locating pin 22 can realize sliding along the eccentric arc guide groove.

There is a guide groove pointing to the center of the circle on the body of the 17 claws, and the 16 claws are loaded into the body of the 17 claws along the direction of the groove; There is a T-shaped groove structure on the side, and the claw 16 can be loaded and slid along the direction of the guide groove.

The central part of the jaw body 17 is located at the inner side of the eccentric groove disc 18, and the remaining part of the jaw body 17 is located on the eccentric groove disc 18. The central part of the claw body 17 is connected with the base 19 by screws; specifically, it is connected and fixed by three screws; the rotation of the eccentric groove disc 18 along the axis can be realized; the handle 20 passes through the cylindrical surface of the eccentric groove disc 18 (in the radial direction) The threaded hole is connected with it.

When the 20 handles are pulled to drive the 18 eccentric groove discs to rotate along the axis, the three evenly distributed eccentric circular arc guide grooves will move relative to the large end (lower end) of the positioning pin 22, because the claw body 17 and the base 19 are not fixed. The jaw 16 that cooperates with the jaw body 17 and the positioning pin 22 can only realize radial movement (near center or centrifugal) in the guide groove of the jaw body 17, thereby controlling the jaw to loosen or tighten the workpiece.

One of the four holes corresponding to the workpiece processing drill sleeve 3 14 is inserted into the positioning pin 21 and inserted into the workpiece, further avoiding the relative movement between the workpiece and the template that may occur during the processing, so as to ensure the processing position of the workpiece.

The assembly process of the third component is as follows:

Insert the eccentric groove disc 18 into the claw body 17, adjust the circumferential position of the eccentric groove disc 18 and the front and rear positions of the claw 16 along the groove, so that the lower end (big end) of the 22 positioning pin enters the eccentric guide of the 18 eccentric groove disc After the slot, the claw body 17 is connected with the base 19 by three screws;

For process tool designers, without departing from the technical principle of the present invention, some improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims (10)

1. Linking plate hinged drilling mold, characterized in that the drilling mold includes jaws (16), jaw body (17), eccentric groove disc (18), base (19), handle (20), positioning pin (twenty two); The upper end of the positioning pin (22) is fixed with the claw (16); there are three evenly distributed eccentric arc guide grooves on the eccentric groove disc (18), the center line of the eccentric arc guide grooves is a section of arc, and the center of the arc is It does not coincide with the center of the eccentric groove disc (18), and the distance from the two ends of the arc to the center of the eccentric groove disc (18) increases from small to large in the clockwise direction; the lower end of the positioning pin (22) is loaded into the eccentric groove disc (18 ) in the eccentric arc guide groove, can slide along the eccentric arc guide groove; there is a radial guide groove on the claw body (17), and the claw (16) is packed into the claw body (17) along the direction of the groove; The claw (16) can be loaded and slid along the direction of the guide groove; the eccentric groove disc (18) is sleeved on the outer periphery of the central part of the claw body (17), and the outer peripheral part of the claw body (17) is located on the eccentric groove disc (18), the outer circle of the lower end of the outer peripheral part of the jaw body (17) matches the inner hole of the eccentric groove disc (18), and the base (19) is located between the eccentric groove disc (18) and the jaw body (17). Under the central part of the claw body (17) central part is fixed with the base (19). 2. The connecting disc hinged drilling mold according to claim 1, characterized in that, both sides of the claw (16) have T-shaped protrusion structures, and at the same time, there are T-shaped grooves on both sides of the guide groove of the claw body (17) structure, make the both sides of the claw (16) cooperate with the guide groove of the claw body (17). 3. The connecting disc hinged drilling jig according to claim 1, characterized in that it also includes a pull (20), the handle (20) passes through the radial threaded hole on the cylindrical surface of the eccentric groove disc (18) and the eccentric Groove disc (18) connects. 4. The connecting plate hinge type drilling mold according to claim 1, characterized in that, it also includes the other two parts, i.e. the first component and the second component; The first component includes: welding clamp body base (1), welding clamp body vertical plate (2), C-type compression screw (4), support plate (5), guide plate (6), movable V-shaped block (7) The base (19) is connected and fixed with the welding clamp body base (1); the welding clamp body vertical plate (2) is fixed with the welding clamp body base (1), and the welding clamp body vertical plate (2) is located under the guide plate (6) ; The fixed support plate (5) is located on the left side of the vertical plate (2) of the welding clamp body; the C-type compression screw (4) passes through the threaded hole of the support plate (5) and the guide groove at the lower end of the guide plate (6) in turn, and the C-type The end of the compression screw penetrates in the groove of the left end of the movable V-shaped block (7), and the left end of the movable V-shaped block (7) is packed into the guide groove at the lower end of the guide plate (6); The second component includes: drill sleeve, template (9), stud (10), hinge shaft (12); the lower end of the stud (10) is threaded to cooperate with the threaded hole on the center line of the welding clamp body base (1); The left end of the template (9) is connected to the guide plate (6) of the first component through the hinge shaft (12), and the template (9) rotates along the axis of the hinge shaft; the drill sleeve is pressed into the hole on the template (9) corresponding to the hole position of the workpiece Inside; template (9) right end is positioned on the boss of the upper section of stud (10). 5. The connecting disc hinged drilling form according to claim 4, characterized in that it also includes a diamond nut (15); the upper end surface of the boss (10) of the stud (10) is in contact with the lower end surface of the right end of the template (9), and the diamond nut ( 15) Cooperate with the thread on the stud (10) boss. 6. The connecting disc hinged drilling mold according to claim 4, characterized in that, the protrusion of the template (9) at one end of the hinge shaft (12) makes the template (9) contact with the guide plate (6) after opening to a certain angle. The upper end faces are in contact and pressed tightly. 7 . The connecting disc hinged drilling mold according to claim 4 , wherein the drill bushing includes drill bushing one, drill bushing two, and four drill bushings three. 8 . 8 . The connecting disc hinged drilling mold according to claim 4 , further comprising a knurled nut with a hole, and the knurled nut with a hole is connected to the C-shaped compression screw through threads. 9. The connecting plate hinged drilling mold according to claim 4, characterized in that it also includes a positioning pin (21), inserting the positioning pin (21) into a hole corresponding to a workpiece processing drill bushing three (14), and inserting into the workpiece. 10. The joint plate hinge type drilling mold according to claim 4, characterized in that it also includes a nut (11), which is screwed into the depth adjustment screw located in the welding clamp body base (1) by rotating the stud (10). height of the column (10), and put on the nut (11) for fastening.