CN218576014U - Lower die positioning fixture - Google Patents

Abstract

The utility model relates to the technical field of fixtures, and discloses a lower mold positioning fixture, which comprises a base, a plurality of slide grooves extending toward the center of the base, screw rods slidably arranged in the corresponding slide grooves, and pressure clamps sleeved on the screw rods. block and the nut threaded with the screw; the two side walls of the base are provided with side plates, and a rotating shaft is rotatably connected between the two side plates, and the outer peripheral wall of the rotating shaft is provided with a plurality of top The distance from the highest point of each top bar to the center of the rotating shaft is not equal; any end of the rotating shaft passes through the corresponding side plate and is connected with the turntable, and the turntable is provided with a positioning device for positioning the rotating shaft Mechanism; by setting nuts for fixing the briquetting block on the screw rod, a plurality of top strips of different heights for supporting the briquetting block away from the end of the lower mold, for pressing the briquetting block of the lower mold, for preventing the rotating shaft The rotating positioning mechanism can quickly support the pressure block away from the end of the lower mold, which is convenient to use.

Description

A lower mold positioning fixture

technical field

The utility model relates to the technical field of fixtures, in particular to a lower mold positioning fixture.

Background technique

Please refer to Fig. 5 and Fig. 6, the traditional clamp for fixing the lower mold generally includes a mounting plate 200 for placing the lower mold 100, four sliding grooves 201 arranged on the mounting plate 200, respectively slidingly arranged in the corresponding sliding grooves 201 The sliding rod 202 , the pressing block 203 passing through the sliding rod 202 , and the nut 204 threadedly connected with the sliding rod 202 . When in use, place the lower mold 100 on the mounting plate 200 of the machine, and then slide the slide bar 202 towards the direction of the lower mold 100 under the guidance of the slide groove 201, and the pressing block 203 moves following the sliding of the slide bar 202 , and then the lower surface of the briquetting block 203 is abutted against the upper surface of the lower mold 100 , and the fixing of the briquetting block 203 is realized by locking the nut 204 and the slide bar 202 , so that the briquetting block 203 is pressed against the lower mold 100 . In order to improve the supporting performance of the pressing block 203 away from the end of the lower mold 100 , generally an iron block 205 is placed between the mounting plate 200 and the pressing block 203 . However, when clamping the lower mold 100 of different thicknesses in this way, it is necessary to select iron blocks 205 of different heights so that the briquetting block 203 is at a level to ensure the clamping effect of the briquetting block 203 on the lower mold 100, and for some thicknesses The thicker lower mold 100 needs to stack a plurality of iron blocks 205 to reach the same height as the lower mold 100 , which is troublesome to use.

The existing technology improves the fixing method of the above-mentioned lower mold. For example, the Chinese patent with the publication number CN215789371U discloses a clamp for a terminal production mold detection device, which includes a fixed base plate, a rotary table, a support plate, and is arranged at the four corners of the support plate. The support rod at the position, the workbench arranged on the end face of the support rod, and four pneumatic clamps arranged on the edge of the lower surface of the workbench, the pneumatic clamps include a cylinder and a pressure block movably connected to the output end of the cylinder. Through the contraction of the output end of the cylinder, the pressing block arranged on it is driven down, so that the pressing block fixes the lower mold located on the upper surface of the workbench. Although this method can provide a better clamping effect for the lower mold, it will vibrate the machine table when the workpiece is clamped multiple times, and the vibration will easily affect the performance of the cylinder, thereby reducing the service life of the above-mentioned clamps.

It can be seen that the prior art still needs to be improved and enhanced.

Utility model content

In view of the deficiencies of the prior art above, the purpose of this utility model is to provide a positioning fixture for the lower mold, aiming to solve the problem of troublesome use of the lower mold clamped by the traditional method and short service life of the lower mold clamped by the cylinder.

In order to achieve the above object, the utility model has taken the following technical solutions:

A lower mold positioning jig, comprising a base, a plurality of slide grooves extending toward the center of the base, screw rods slidably arranged in the corresponding slide grooves, a pressure block sleeved on the screw rods, and nuts threadedly connected with the screw rods The two side walls of the base are provided with side plates, and a rotating shaft is connected between the two side plates, and the outer peripheral wall of the rotating shaft is provided with a plurality of top bars extending along its length direction, and each of the The distance from the highest point of the top bar to the center of the rotating shaft is not equal; any end of the rotating shaft passes through the corresponding side plate and is connected to the turntable, and the turntable is provided with a positioning mechanism for positioning the rotating shaft.

The positioning fixture for the lower mold, wherein the positioning mechanism includes slots arranged on the turntable and consistent with the number of the top strips, arranged on the side plate and connected to any of the slots Corresponding positioning holes, and locking rods arranged in any one of the slot holes and the positioning holes.

The lower mold positioning jig described above, wherein the positioning hole is provided with internal threads, the locking rod is provided with external threads, and the locking rod is threadedly connected with the positioning hole.

In the lower mold positioning jig, there are four top strips, four slots, and a line connecting the centers of the four slots is a square.

The lower mold positioning jig, wherein, the end of the rotating shaft is configured as a polygon, and the middle part of the turntable is configured as a polygonal hole that matches the shape of the polygon, and the polygon is inserted into the polygonal hole middle.

In the lower mold positioning jig, a handle is provided on the outer surface of the turntable.

The positioning fixture for the lower mold, wherein, the two side walls of the base are respectively provided with installation seats, the installation seats are provided with installation grooves extending along the length direction thereof, and the lower surfaces of the side plates are provided with sliders , the slider is slidably disposed in the installation groove.

The positioning fixture for the lower mold, wherein, the mounting seat is provided with a first threaded hole penetrating through its left and right side walls, and the slider is provided with a second threaded hole penetrating through its left and right side walls. The first threaded hole and the second threaded hole are threadedly connected with a fixing rod, and the two ends of the fixing rod are respectively threaded with fixing parts, and the inner sidewalls of the two fixing parts are connected with the two sides of the mounting seat respectively. wall abutment.

In the lower mold positioning jig, wherein, the pressure block is provided with a waist-shaped hole extending along its length direction, and the screw rod is arranged in the waist-shaped hole.

Beneficial effect:

The utility model provides a lower mold positioning fixture, which is provided with nuts for fixing the pressure block on the screw rod, a plurality of top strips of different heights for supporting the pressure block away from the end of the lower mold, and for resisting pressure. The pressing block of the lower mold and the positioning mechanism used to prevent the rotation of the rotating shaft can quickly rotate the rotating shaft so that the top bar arranged on the rotating shaft is located directly below the pressing block, and is used to support the end of the pressing block away from the lower mold. The structure is simple, and the use is convenient; and the supporting ability for the briquetting block is good, and the service life is long.

Description of drawings

Fig. 1 is a structural schematic diagram of the lower mold positioning fixture provided by the utility model.

Fig. 2 is a structural schematic diagram of a screw, a briquetting block and a nut.

Fig. 3 is a partial structural schematic diagram of the lower mold positioning fixture.

Fig. 4 is a schematic diagram of the structure of the mounting seat.

Fig. 5 is a structural schematic diagram 1 of the existing lower mold positioning fixture.

FIG. 6 is a second structural schematic diagram of the existing lower mold positioning fixture.

Description of main component symbols: 1-base, 11-chute, 12-screw, 13-press block, 131-waist hole, 14-nut, 2-side plate, 21-bearing, 22-slider, 221-section Two threaded holes, 3-rotating shaft, 31-polygon, 4-top bar, 5-turntable, 51-polygon hole, 52-handle, 6-positioning mechanism, 61-slot hole, 62-positioning hole, 63-lock lever, 7-installation seat, 71-installation groove, 72-first threaded hole, 73-fixing rod, 74-fixing piece, 100-lower mold.

Detailed ways

The utility model provides a lower mold positioning fixture. In order to make the purpose, technical solution and effect of the utility model clearer and clearer, the utility model will be further described in detail with reference to the accompanying drawings and examples below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the protection scope of the utility model.

Please refer to Figure 1-Figure 3, the utility model provides a lower mold positioning fixture, including a base 1, four chute 11 extending from the corner of the base 1 to the center of the base 1, slidingly arranged in the corresponding chute 11 The screw 12, the pressure block 13 sleeved on the screw 12, and the nut 14 threaded with the screw 12; the two side walls of the base 1 are provided with side plates 2, and the two side plates 2 are respectively Bearings 21 are provided, and a rotating shaft 3 is rotatably connected between the two bearings 21. The outer peripheral wall of the rotating shaft 3 is provided with a plurality of top bars 4 extending along its length direction, and each top bar 4 has the highest The distances from the point to the center of the rotating shaft 3 are all unequal; any end of the rotating shaft 3 passes through the corresponding side plate 2 and is connected to the turntable 5, and the turntable 5 is provided with a positioning mechanism 6 for positioning the rotating shaft 3 .

When in use, the lower mold 100 is placed in the middle of the base 1 , and the screw 12 is slid towards the lower mold 100 under the guidance of the chute 11 . Then turn the turntable 5 to make the turntable 5 drive the rotation of a plurality of top bars 4 on the rotating shaft 3. Since the heights of each top bar 4 are all different, the top bars 4 of different heights can be rotated to press according to the thickness of the lower mold 100. Right below the block 13, then the rotating shaft 3 is fixed by the positioning mechanism 6 to prevent the rotating shaft 3 from rotating. Then the end of the briquetting block 13 towards the lower mold 100 is pressed against the upper surface of the lower mold 100, and the end of the briquetting block 13 away from the lower mold 100 is pressed against the upper surface of the top bar 4, and then the briquetting block 13 is fixed with a nut 14 .

Please refer to Fig. 1, in this embodiment, the described rotating shaft 3 is arranged as two, and the two rotating shafts 3 respectively correspond to the two pressure blocks 13 in the two chute 11 on the left or right side, repeating the above operations to realize The fixing of the four pressing blocks 13 realizes the positioning and clamping of the four corners of the lower mold 100 .

The above structure is provided with nuts 14 for fixing the briquetting block 13 on the screw rod 12, a plurality of top strips 4 of different heights for supporting the briquetting block 13 away from the end of the lower mold 100, and for pressing against the bottom of the lower mold 100. The briquetting block 13 and the positioning mechanism 6 used to prevent the rotation of the rotating shaft 3 can quickly rotate the rotating shaft 3 so that the top bar 4 arranged on the rotating shaft 3 is located directly below the briquetting block 13, and is used to support the briquetting block 13 away from the bottom The end of the mold 100 has a simple structure and is convenient to use; and it has a good supporting capacity for the pressing block 13 and has a long service life.

Please refer to FIG. 1 and FIG. 3 , in some embodiments, the positioning mechanism 6 includes slots 61 arranged on the turntable 5 and in the same number as the number of the top bars 4 , and arranged on the side plate 2 . A positioning hole 62 on the top and corresponding to any one of the slot holes 61 , and a locking rod 63 disposed in any one of the slot holes 61 and the positioning hole 62 . During use, take off the lock bar 63, release the connection between the turntable 5 and the side plate 2, so that the turntable 5 can drive the rotating shaft 3 to rotate, and when the top bar 4 of a suitable height is turned to the right below the pressure block 13, the lock bar 63 Reinsert into the slot 61 and the positioning hole 62 to realize the locking of the turntable 5 and the side plate 2 , that is to realize the locking of the rotating shaft 3 .

Referring to FIG. 3 , in some embodiments, internal threads are provided in the positioning hole 62 , external threads are provided on the locking rod 63 , and the locking rod 63 is threadedly connected with the positioning hole 62 . Specifically, after the locking rod 63 is inserted into the slot hole 61, the screw rod 12 is fixed in the positioning hole 62 by rotating the screw rod 12, and the threaded connection can prevent the screw rod 12 from falling from the positioning hole 62, and the rotating shaft 3 cannot be locked. problem occurs.

Please refer to FIG. 3 , in some embodiments, there are four top strips 4 and four slots 61 , and the line connecting the centers of the four slots 61 is a square. Each top bar 4 corresponds to a height. In this embodiment, the height corresponding to each top bar 4 is gradually raised or lowered in a clockwise or counterclockwise direction, so that it is easy for the operator to identify. It should be noted here that more or fewer top strips 4 can be provided according to actual needs, so as to adapt to the use of more molds 100 with different thicknesses.

Please refer to Fig. 1 and Fig. 3, optionally, the end of the rotating shaft 3 is set as a polygon 31, and the middle part of the turntable 5 is set as a polygonal hole 51 adapted to the shape of the polygon 31, the polygon 31 is inserted in the polygonal hole 51. Through the above arrangement, the connection between the rotating shaft 3 and the turntable 5 is tighter; and the above structure is less difficult to process, that is, the manufacturing cost is low. This embodiment only uses a hexagon as an example for display, and it can also be set as a triangle, a quadrangle, a pentagon, etc. in actual production.

Please refer to FIG. 1 and FIG. 3 , in some embodiments, a handle 52 is provided on the outer surface of the turntable 5 . The setting of the handle 52 is convenient for the operator to grasp, and the handle 52 drives the turntable 5 to rotate, thereby driving the top bar 4 on the rotating shaft 3 to rotate.

Please refer to Fig. 1 and Fig. 4, in some embodiments, the two side walls of the base 1 are respectively provided with mounting seats 7, and the mounting seats 7 are provided with mounting grooves 71 extending along the length thereof. The lower surface of the side plate 2 is provided with a slider 22 , and the slider 22 is slidably disposed in the installation groove 71 . The setting of the chute 11 enables the screw rod 12 and the pressing block 13 arranged on the screw rod 12 to move in the chute 11, and the installation seat 7, the installation groove 71 and the slider 22 are provided so that the side plate 2 can reciprocate along the length direction of the base 1 move, thereby ensuring that the top bar 4 can support the end of the pressure block 13 away from the lower mold 100 .

Please refer to FIG. 1 and FIG. 4 , in some embodiments, the mounting base 7 is provided with a first threaded hole 72 passing through its left and right side walls, and the slider 22 is provided with a first threaded hole 72 passing through its left and right side walls. The second threaded hole 221, the first threaded hole 72 and the second threaded hole 221 are threaded with a fixed rod 73, and the two ends of the fixed rod 73 are threaded with a fixing member 74 respectively. The inner side walls of the member 74 abut against the two side walls of the mounting seat 7 respectively. When in use, by loosening the fixing pieces 74 at both ends, the fixing rod 73 can move left and right, thereby driving the side plate 2 to move left and right in the installation groove 71 until the rotating shaft 3 is located below the pressure block 13, and then by re-locking the two The fixing member 74 realizes the positioning of the fixing rod 73 , that is, realizes the positioning of the rotating shaft 3 relative to the base 1 .

Please refer to FIG. 1 and FIG. 2 , in some embodiments, a waist-shaped hole 131 extending along the length direction of the pressing block 13 is provided on the pressing block 13 , and the screw rod 12 is disposed in the waist-shaped hole 131 . The setting of the waist-shaped hole 131 enables the pressing block 13 to move left and right relative to the screw rod 12 , so that the pressing block 13 can better press against the upper surface of the lower mold 100 and improve the positioning and clamping effect of the lower mold 100 .

In summary, the utility model is provided with a nut 14 for fixing the pressing block 13 on the screw rod 12, a plurality of top strips 4 of different heights for supporting the pressing block 13 away from the end of the lower mold 100, and for The pressing block 13 of the lower mold 100 and the positioning mechanism 6 for preventing the rotation of the rotating shaft 3 can quickly rotate the rotating shaft 3 so that the top bar 4 arranged on the rotating shaft 3 is located directly below the pressing block 13 for supporting The pressure-bearing block 13 is away from the end of the lower mold 100 , has a simple structure and is convenient to use; and has a good supporting capacity for the pressure block 13 and has a long service life. A plurality of slotted holes 61 , positioning holes 62 and locking rods 63 are provided to realize the locking of the turntable 5 and the side plate 2 . A positioning hole 62 with an internal thread and a locking rod 63 with an external thread are provided to prevent the locking rod 63 from falling out of the positioning hole 62 . Four top strips 4 and four slot holes 61 are provided, which can meet the positioning requirements of most molds with different thicknesses. The ends of the polygon 31 and the polygon hole 51 are provided to realize the seamless connection between the rotating shaft 3 and the turntable 5 . A handle 52 is provided to facilitate the operator to grasp. The mounting seat 7, the mounting groove 71 and the slider 22 are provided so that the side plate 2 can move left and right. A fixing rod 73 and a fixing piece 74 are provided for positioning the side plate 2 on the mounting base 7 . The waist-shaped hole 131 is provided to facilitate the left and right movement of the pressing block 13 .

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be direct connection or indirect connection through an intermediary, it can be the internal communication of two components or the mutual communication of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

It can be understood that those skilled in the art can make equivalent replacements or changes according to the technical solution of the utility model and its inventive concept, and all these changes or substitutions should belong to the protection scope of the utility model.

Claims (9)

1. A lower mold positioning fixture, comprising a base, a plurality of chutes extending toward the center of the base, a screw rod slidingly arranged in the corresponding chute, a briquetting block sleeved on the screw rod, and threadedly connected with the screw rod nut; it is characterized in that, the two side walls of the base are provided with side plates, and a rotating shaft is rotatably connected between the two side plates, and the outer peripheral wall of the rotating shaft is provided with a plurality of tops extending along its length direction. The distance from the highest point of each top bar to the center of the shaft is not equal; any end of the shaft passes through the corresponding side plate and is connected to the turntable, and the turntable is provided with a positioning mechanism. 2. The lower mold positioning jig according to claim 1, characterized in that, the positioning mechanism includes slots arranged on the turntable and consistent with the number of the top strips, and arranged on the side plate And a positioning hole corresponding to any one of the slot holes, and a locking bar arranged in any one of the slot holes and the positioning hole. 3 . The lower mold positioning jig according to claim 2 , wherein the positioning hole is provided with internal threads, the locking rod is provided with external threads, and the locking rod is threadedly connected with the positioning hole. 4 . 4. The lower mold positioning jig according to claim 2, characterized in that there are four top bars, four slot holes, and a line connecting the centers of the four slot holes is square. 5. The lower mold positioning jig according to claim 2, characterized in that, the end of the rotating shaft is configured as a polygon, and the middle part of the turntable is configured as a polygonal hole matching the shape of the polygon, the A polygon is inserted in the polygon hole. 6 . The lower mold positioning jig according to claim 2 , wherein a handle is provided on the outer surface of the turntable. 7 . 7. The lower mold positioning jig according to claim 1, characterized in that, the two side walls of the base are respectively provided with mounting seats, and the mounting seats are provided with mounting grooves extending along the length direction thereof, and the side walls A slider is provided on the lower surface of the board, and the slider is slidably arranged in the installation groove. 8. The lower mold positioning jig according to claim 7, characterized in that, the mounting seat is provided with a first threaded hole penetrating through its left and right side walls, and the slider is provided with a first threaded hole penetrating through its left and right side walls. The second threaded hole, the first threaded hole and the second threaded hole are threaded with a fixing rod, the two ends of the fixing rod are respectively threaded with a fixing piece, and the inner side walls of the two fixing pieces are respectively abut against the two side walls of the mounting seat. 9 . The lower mold positioning jig according to claim 1 , wherein the pressing block is provided with a waist-shaped hole extending along its length direction, and the screw rod is arranged in the waist-shaped hole. 10 .

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