CN218576014U

CN218576014U - Lower die positioning fixture

Info

Publication number: CN218576014U
Application number: CN202222750812.0U
Authority: CN
Inventors: 黄倩
Original assignee: Foshan Mingshen Metal Products Co ltd
Current assignee: Foshan Mingshen Metal Products Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-07
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to the technical field of clamps and discloses a lower die positioning clamp, which comprises a base, a plurality of chutes extending towards the center of the base, a screw rod arranged in the corresponding chute in a sliding way, a pressing block sleeved on the screw rod and a nut in threaded connection with the screw rod; two side walls of the base are provided with side plates, a rotating shaft is rotatably connected between the two side plates, a plurality of top strips extending along the length direction of the rotating shaft are arranged on the outer peripheral wall of the rotating shaft, and the distance from the highest point of each top strip to the circle center of the rotating shaft is different; any end of the rotating shaft penetrates through the corresponding side plate and is connected with the rotating disc, and the rotating disc is provided with a positioning mechanism for positioning the rotating shaft; through setting up the nut that is used for fixing the briquetting on the screw rod, be used for the bearing briquetting to keep away from many not co-altitude top strips of bed die tip, be used for supporting the briquetting of bed die, be used for preventing pivot pivoted positioning mechanism, can swiftly support the tip that the bed die was kept away from to the briquetting, it is convenient to use.

Description

Lower die positioning fixture

Technical Field

The utility model relates to a technical field of anchor clamps, in particular to bed die positioning fixture.

Background

Referring to fig. 5 and 6, a conventional jig for fixing a lower mold generally includes a mounting plate 200 for placing a lower mold 100, four slide grooves 201 provided on the mounting plate 200, slide bars 202 slidably provided in the corresponding slide grooves 201, press blocks 203 provided on the slide bars 202, and nuts 204 threadedly coupled to the slide bars 202. During the use, place bed die 100 on the mounting panel 200 of board, then slide bar 202 towards the direction of bed die 100 under the direction of sliding tray 201, briquetting 203 follows the slip and remove of slide bar 202, then with the lower surface of briquetting 203 and the upper surface butt of bed die 100, realize the fixed of briquetting 203 through locking nut 204 and slide bar 202, realize briquetting 203 and compress tightly bed die 100. In order to improve the support of the pressing block 203 away from the end of the lower mold 100, an iron block 205 is generally placed between the mounting plate 200 and the pressing block 203. However, in this way, when the lower mold 100 with different thicknesses is clamped, the iron blocks 205 with different heights need to be selected to make the pressing block 203 horizontal, so as to ensure the clamping effect of the pressing block 203 on the lower mold 100, and for some lower molds 100 with thicker thicknesses, a plurality of iron blocks 205 need to be stacked to reach a height equivalent to that of the lower mold 100, which is troublesome to use.

The prior art improves the fixing mode of the lower die, and for example, a chinese patent with publication number CN215789371U discloses a fixture for a detection device of a binding post production die, which comprises a fixed bottom plate, a rotary table, a support plate, support rods arranged at four corners of the support plate, a workbench arranged at an end face of the support rods, and four pneumatic fixtures arranged at edge positions of a lower surface of the workbench, wherein the pneumatic fixtures comprise a cylinder and a press block movably connected to an output end of the cylinder. The pressing block arranged on the cylinder is driven to descend by the contraction of the output end of the cylinder, so that the pressing block fixes the lower die positioned on the upper surface of the workbench. Although the mode can provide a better clamping effect for the lower die, the vibration is generated on the machine table when the workpiece is subjected to repeated die assembly, the performance of the cylinder is easily influenced by the vibration, and the service life of the clamp is further shortened.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide a bed die positioning fixture, it is troublesome to aim at solving to use through traditional mode centre gripping bed die, through the short problem of cylinder centre gripping bed die life.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a lower die positioning clamp comprises a base, a plurality of sliding grooves extending towards the center of the base, screws arranged in the corresponding sliding grooves in a sliding manner, pressing blocks sleeved on the screws, and nuts in threaded connection with the screws; two side walls of the base are provided with side plates, a rotating shaft is rotatably connected between the two side plates, a plurality of top strips extending along the length direction of the rotating shaft are arranged on the outer peripheral wall of the rotating shaft, and the distance from the highest point of each top strip to the circle center of the rotating shaft is different; any end of the rotating shaft penetrates through the corresponding side plate and is connected with the rotating disc, and the rotating disc is provided with a positioning mechanism for positioning the rotating shaft.

The lower die positioning fixture is characterized in that the positioning mechanism comprises slotted holes, positioning holes and locking rods, the slotted holes are formed in the rotary table and are consistent with the top strips in number, the positioning holes are formed in the side plates and correspond to the slotted holes, and the locking rods are arranged in the slotted holes and the positioning holes.

The lower die positioning fixture is characterized in that internal threads are arranged in the positioning hole, external threads are arranged on the lock rod, and the lock rod is in threaded connection with the positioning hole.

The lower die positioning fixture is characterized in that the number of the top strips is four, the number of the slotted holes is four, and connecting lines of centers of the four slotted holes are square.

The lower die positioning fixture is characterized in that the end part of the rotating shaft is a polygon, the middle part of the rotating disc is a polygonal hole matched with the outline of the polygon, and the polygon is inserted in the polygonal hole.

The lower die positioning fixture is characterized in that a handle is arranged on the outer side face of the rotary table.

Lower mould positioning fixture, wherein, the both sides wall of base is provided with the mount pad respectively, be provided with the mounting groove that extends along its length direction on the mount pad, the lower surface of curb plate is provided with the slider, the slider slides and sets up in the mounting groove.

Lower mould positioning fixture, wherein, be provided with the first screw hole that runs through its left and right sides wall on the mount pad, be provided with the second screw hole that runs through its left and right sides wall on the slider, first screw hole with threaded connection has the dead lever in the second screw hole, threaded connection has the mounting respectively at the both ends of dead lever, two the inside wall of mounting respectively with the both sides wall butt of mount pad.

The lower die positioning fixture is characterized in that a waist-shaped hole extending along the length direction of the pressing block is formed in the pressing block, and the screw is arranged in the waist-shaped hole.

Has the beneficial effects that:

the utility model provides a lower die positioning fixture, which can quickly rotate a rotating shaft by arranging a nut for fixing a pressing block on a screw rod, a plurality of top strips with different heights for supporting the pressing block to be away from the end part of the lower die, a pressing block for pressing the lower die and a positioning mechanism for preventing the rotating shaft from rotating, so that the top strip arranged on the rotating shaft is positioned under the pressing block and is used for supporting the pressing block to be away from the end part of the lower die; and the support capability to the pressing block is good, and the service life is long.

Drawings

Fig. 1 is the utility model provides a lower die positioning fixture's schematic structure diagram.

FIG. 2 is a schematic view of the structure of the screw, the pressing block and the nut.

Fig. 3 is a partial structural view of a lower mold positioning jig.

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

Fig. 5 is a first structural schematic diagram of a conventional lower mold positioning fixture.

Fig. 6 is a second structural schematic diagram of a conventional lower mold positioning fixture.

Description of the main element symbols: 1-base, 11-chute, 12-screw, 13-pressing block, 131-waist-shaped hole, 14-nut, 2-side plate, 21-bearing, 22-slide block, 221-second threaded hole, 3-rotating shaft, 31-polygon, 4-top strip, 5-rotating disc, 51-polygon hole, 52-handle, 6-positioning mechanism, 61-slotted hole, 62-positioning hole, 63-locking rod, 7-mounting seat, 71-mounting groove, 72-first threaded hole, 73-fixing rod, 74-fixing piece and 100-lower die.

Detailed Description

The utility model provides a bed die positioning fixture, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the embodiment is lifted to follow reference to the attached drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1-3, the present invention provides a lower mold positioning fixture, which includes a base 1, four sliding grooves 11 extending from the corners of the base 1 to the center of the base 1, a screw rod 12 slidably disposed in the corresponding sliding groove 11, a pressing block 13 sleeved on the screw rod 12, and a nut 14 in threaded connection with the screw rod 12; two side walls of the base 1 are provided with side plates 2, two of the side plates 2 are respectively provided with a bearing 21, 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 strips 4 extending along the length direction of the rotating shaft, and the distance from the highest point of each top strip 4 to the circle center of the rotating shaft 3 is unequal; any end of the rotating shaft 3 penetrates through the corresponding side plate 2 and is connected with the rotating disc 5, and the rotating disc 5 is provided with a positioning mechanism 6 for positioning the rotating shaft 3.

When in use, the lower die 100 is placed in the middle of the base 1, and the screw 12 is guided by the sliding groove 11 to slide towards the lower die 100. Then, the rotating disc 5 is rotated, so that the rotating disc 5 drives the top strips 4 on the rotating shaft 3 to rotate, and because the heights of the top strips 4 are different, the top strips 4 with different heights can be rotated to be right below the pressing block 13 according to the thickness of the lower die 100, and then the rotating shaft 3 is fixed through the positioning mechanism 6, so that the rotating shaft 3 is prevented from rotating. Then, the pressing block 13 is pressed against the upper surface of the lower die 100 towards the end of the lower die 100, the end of the pressing block 13 far away from the lower die 100 is pressed against the upper surface of the top bar 4, and the pressing block 13 is fixed by the nut 14.

Referring to fig. 1, in this embodiment, two rotating shafts 3 are provided, and the two rotating shafts 3 correspond to two pressing blocks 13 in two sliding chutes 11 located on the left side or the right side respectively, and the above operations are repeated to fix the four pressing blocks 13, so as to position and clamp the lower mold 100 at four angular positions.

The structure is provided with the nut 14 for fixing the pressing block 13 on the screw 12, the top strips 4 with different heights for supporting the pressing block 13 away from the end part of the lower die 100, the pressing block 13 for supporting the lower die 100 and the positioning mechanism 6 for preventing the rotating shaft 3 from rotating, so that the top strips 4 arranged on the rotating shaft 3 can be positioned right below the pressing block 13 by rotating the rotating shaft 3 quickly, and the pressing block 13 is used for supporting the end part of the pressing block 13 away from the lower die 100, and the structure is simple and convenient to use; and the support capability to the pressing block 13 is good, and the service life is long.

Referring to fig. 1 and 3, in some embodiments, the positioning mechanism 6 includes slots 61 that are disposed on the rotating disc 5 and are equal to the number of the top strips 4, positioning holes 62 that are disposed on the side plates 2 and correspond to any of the slots 61, and lock levers 63 that are disposed in any of the slots 61 and the positioning holes 62. When the locking device is used, the locking rod 63 is taken down, the connection between the rotary disc 5 and the side plate 2 is released, so that the rotary disc 5 can drive the rotary shaft 3 to rotate, and when the top strip 4 with a proper height rotates to the position right below the pressing block 13, the locking rod 63 is inserted into the slotted hole 61 and the positioning hole 62 again to lock the rotary disc 5 and the side plate 2, namely, the rotary shaft 3 is locked.

Referring to fig. 3, in some embodiments, the positioning hole 62 is internally threaded, the lock bar 63 is externally threaded, and the lock bar 63 is threadedly coupled with the positioning hole 62. Specifically, after the lock bar 63 is inserted into the slot 61, the screw 12 is fixed in the positioning hole 62 by rotating the screw 12, and the problem that the rotating shaft 3 cannot be locked due to the screw 12 falling from the positioning hole 62 can be prevented by means of threaded connection.

Referring to fig. 3, in some embodiments, four top strips 4 are provided, four slots 61 are provided, and a connection line between centers of the four slots 61 is a square. Each top strip 4 corresponds to a height, and in this embodiment, the height corresponding to each top strip 4 gradually increases or decreases in a clockwise or counterclockwise direction, so that the operator can conveniently recognize the height. It should be noted here that more or less top bars 4 may be provided according to the actual use requirements, thereby adapting to the use of more and different thickness lower molds 100.

Referring to fig. 1 and 3, alternatively, the end portion of the rotating shaft 3 is provided with a polygon 31, the middle portion of the rotating disc 5 is provided with a polygon hole 51 adapted to the outer shape of the polygon 31, and the polygon 31 is inserted into the polygon hole 51. Through the arrangement, the connection between the rotating shaft 3 and the rotating disc 5 is tighter; and the structure has low processing difficulty, namely low manufacturing cost. The present embodiment is shown by taking a hexagon as an example, and the hexagon can be set as a triangle, a quadrangle, a pentagon, and the like in actual production.

Referring to fig. 1 and 3, in some embodiments, a handle 52 is disposed on an outer side of the turntable 5. The handle 52 is provided for an operator to grasp, and the rotating disc 5 is driven to rotate by the handle 52, so as to drive the top strip 4 on the rotating shaft 3 to rotate.

Referring to fig. 1 and 4, in some embodiments, two side walls of the base 1 are respectively provided with a mounting seat 7, the mounting seat 7 is provided with a mounting groove 71 extending along a length direction thereof, the lower surface of the side plate 2 is provided with a sliding block 22, and the sliding block 22 is slidably disposed in the mounting groove 71. The setting of spout 11 makes screw 12 and the briquetting 13 of setting on screw 12 can remove in spout 11, sets up mount pad 7, mounting groove 71 and slider 22 for the length direction reciprocating motion of base 1 can be followed to curb plate 2, thereby ensures that top strip 4 can bear the tip that briquetting 13 kept away from bed die 100.

Referring to fig. 1 and 4, in some embodiments, the mounting base 7 is provided with a first threaded hole 72 penetrating through left and right sidewalls of the mounting base, the slider 22 is provided with a second threaded hole 221 penetrating through left and right sidewalls of the slider, the first threaded hole 72 and the second threaded hole 221 are respectively in threaded connection with a fixing rod 73, two ends of the fixing rod 73 are respectively in threaded connection with fixing pieces 74, and inner sidewalls of the two fixing pieces 74 are respectively abutted against two sidewalls of the mounting base 7. During the use, through loosening the mounting 74 at both ends for dead lever 73 can remove about, thereby drives curb plate 2 and removes about in mounting groove 71, when pivot 3 was located the below of briquetting 13, realizes the location of dead lever 73 through locking two mounting 74 again, realizes the location of pivot 3 for base 1 position promptly.

Referring to fig. 1 and 2, in some embodiments, the pressing block 13 is provided with a kidney-shaped hole 131 extending along a length direction thereof, and the screw 12 is disposed in the kidney-shaped hole 131. The waist-shaped hole 131 enables the pressing block 13 to move left and right relative to the screw 12, so that the pressing block 13 can better abut against the upper surface of the lower die 100, and the positioning and clamping effect of the lower die 100 is improved.

To sum up, the utility model has the advantages that the nut 14 for fixing the pressing block 13 on the screw 12, the top strips 4 with different heights for supporting the pressing block 13 away from the end part of the lower die 100, the pressing block 13 for supporting the lower die 100 and the positioning mechanism 6 for preventing the rotation of the rotating shaft 3 are arranged, so that the top strips 4 arranged on the rotating shaft 3 can be positioned under the pressing block 13 by rotating the rotating shaft 3 quickly and conveniently, and the nut is simple in structure and convenient to use for supporting the pressing block 13 away from the end part of the lower die 100; and the supporting capability to the pressing block 13 is good, and the service life is long. A plurality of slotted holes 61, positioning holes 62 and locking rods 63 are arranged to realize the locking of the rotary disc 5 and the side plate 2. A positioning hole 62 provided with an internal thread and a lock lever 63 provided with an external thread are provided for preventing the lock lever 63 from falling out of the positioning hole 62. Four top strips 4 and four slotted holes 61 are arranged, so that the positioning requirements of most of moulds with different thicknesses can be met. The end of the polygon 31 and the polygon hole 51 are provided to realize seamless connection of the rotary shaft 3 and the rotary table 5. The handle 52 is provided for easy grasping by the operator. The installation seat 7, the installation groove 71 and the slide block 22 are arranged to enable the side plate 2 to move left and right. A fixing rod 73 and a fixing piece 74 are provided for positioning the side plate 2 on the mount 7. The waist-shaped hole 131 is arranged to facilitate the left and right movement of the pressing block 13.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be understood that the technical solutions of the present invention and the inventive concept thereof can be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A lower die positioning clamp comprises a base, a plurality of sliding grooves extending towards the center of the base, a screw rod arranged in the corresponding sliding groove in a sliding manner, a pressing block sleeved on the screw rod, and a nut in threaded connection with the screw rod; the novel base is characterized in that side plates are arranged on two side walls of the base, a rotating shaft is rotatably connected between the two side plates, a plurality of top strips extending along the length direction of the rotating shaft are arranged on the outer peripheral wall of the rotating shaft, and the distance from the highest point of each top strip to the circle center of the rotating shaft is different; any end of the rotating shaft penetrates through the corresponding side plate and is connected with the rotating disc, and the rotating disc is provided with a positioning mechanism for positioning the rotating shaft.

2. The lower mold positioning fixture according to claim 1, wherein the positioning mechanism includes slotted holes provided on the turntable in a number consistent with the number of the top bars, positioning holes provided on the side plates corresponding to any of the slotted holes, and lock levers provided in any of the slotted holes and the positioning holes.

3. The lower mold positioning fixture of claim 2, wherein the positioning hole is internally provided with an internal thread, and the locking rod is provided with an external thread, and the locking rod is in threaded connection with the positioning hole.

4. The lower mold positioning fixture of claim 2, wherein the number of the top bars is four, the number of the slots is four, and a connecting line of centers of the four slots is square.

5. The lower mold positioning jig according to claim 2, wherein the end portion of the rotation shaft is provided in a polygonal shape, and the middle portion of the turntable is provided in a polygonal hole adapted to an outer shape of the polygonal shape, the polygonal shape being inserted in the polygonal hole.

6. The lower mold positioning fixture of claim 2, wherein a handle is disposed on an outer side of the turntable.

7. The lower mold positioning fixture according to claim 1, wherein two side walls of the base are respectively provided with a mounting seat, the mounting seat is provided with a mounting groove extending along a length direction of the mounting seat, and a sliding block is arranged on a lower surface of the side plate and is slidably arranged in the mounting groove.

8. The lower mold positioning fixture of claim 7, wherein the mounting seat has a first threaded hole penetrating through left and right sidewalls thereof, the slide block has a second threaded hole penetrating through left and right sidewalls thereof, the first threaded hole and the second threaded hole have a fixing rod screwed therein, two ends of the fixing rod are respectively screwed with fixing members, and inner sidewalls of the two fixing members are respectively abutted against two sidewalls of the mounting seat.

9. The lower mold positioning fixture of claim 1, wherein the pressing block is provided with a kidney-shaped hole extending along a length direction thereof, and the screw is disposed in the kidney-shaped hole.