Adjustable positioning device

Abstract

The utility model discloses an adjustable positioning device, which belongs to the technical field of automobile stamping dies and comprises a movable block, a fixed block, a plurality of base plates and fastening bolts. Threaded holes are formed in the side walls of the two adjacent sides of the movable block correspondingly. The fixed block is provided with two wing plates matched with the two side walls, provided with the threaded holes, of the movable block respectively, and the wing plates are provided with eccentric holes corresponding to the threaded holes. The base plates are clamped between the movable blocks and the corresponding wing plates. The diameter of a screw of the fastening bolt is smaller than the aperture of the eccentric hole. Positioning of the positioning pin is achieved through the detachable adjusting structure, repeated punching operation is avoided, and the operation process is simplified. Dimension differences exist between the eccentric holes and the threaded holes and between the eccentric holes and the fastening bolts, when the number of the base plates is increased or decreased, the positions between the movable block and the fixed block are changed, the fastening bolts can still penetrate through the eccentric holes and are connected with the threaded holes, and then the movable block and the fixed block are fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile stamping dies, in particular to an adjustable positioning device. Background Art

[0002] Automotive panel stamping dies are vital tools in automotive manufacturing. These dies are key equipment used to process sheet metal into exterior panels such as car bodies, doors, hoods, etc. The manufacture of these parts requires high precision and complex forming processes, and stamping dies are the core to achieve this goal.

[0003] The locating pins on the stamping die serve as the reference for the positioning of the sheet, and the positioning of the locating pins plays a very important role in the processing accuracy of the stamping parts. However, during the early adjustment of the locating pins, the punching position of the base is often inaccurate, which leads to the need to repeatedly adjust the position of the locating pins. As a result, the operation of plugging and punching holes is required repeatedly, which greatly wastes working time. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable positioning device to solve the problems existing in the above-mentioned prior art.

[0005] Provided is an adjustable positioning device, comprising:

[0006] A movable block, wherein a positioning pin is provided on the movable block, and threaded holes are respectively provided on two adjacent side walls of the movable block;

[0007] A fixed block, the fixed block having two wing plates respectively matched with the two side walls of the movable block with threaded holes, and the wing plates are provided with side holes arranged corresponding to the threaded holes;

[0008] A plurality of pads, wherein the plurality of pads are clamped between the movable block and the corresponding wing plates;

[0009] A fastening bolt passes through the side hole and is threadedly connected with the threaded hole, and the diameter of the screw rod of the fastening bolt is smaller than the hole diameter of the side hole.

[0010] Furthermore, the offset hole forms an offset hole and a countersunk hole in sequence along the length direction, the diameter of the screw of the fastening bolt is smaller than the aperture of the offset hole, and the diameter of the head of the fastening bolt is larger than the aperture of the offset hole and smaller than the aperture of the countersunk hole.

[0011] Furthermore, the invention also includes a filling piece, the inner wall of one end of the counterbore away from the offset hole is arranged with an internal thread, the filling piece is arranged with an external thread, and the filling piece can be connected with the counterbore thread.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The position of the movable block can be moved by adding or removing pads between the movable block and the fixed block, and the position of the positioning pin can be adjusted by offsetting the movable block. The positioning of the positioning pin is achieved through a detachable adjustment structure, which avoids repeated punching operations and simplifies the operation process. There is a size difference between the offset hole and the threaded hole, and between the offset hole and the fastening bolt. When the position between the movable block and the fixed block changes due to adding or removing pads, the fastening bolt can still pass through the offset hole and connect with the threaded hole, thereby fixing the movable block and the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of an adjustable positioning device;

[0016] Figure 2 This is an exploded schematic diagram of an adjustable positioning device.

[0017] In the figure: 1, movable block; 11, threaded hole; 2, fixed block; 21, wing plate; 22, offset hole; 221, offset hole; 222, countersunk hole; 3, pad; 4, fastening bolt; 5, filling piece; 6, positioning pin. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2As shown, in an embodiment of the utility model, an adjustable positioning device includes a movable block 1, a fixed block 2, a plurality of pads 3 and a fastening bolt 4. A positioning pin 6 is provided on the movable block 1, and threaded holes 11 are respectively provided on the adjacent side walls of the movable block 1. The fixed block 2 has two wing plates 21 respectively matched with the side walls of the movable block 1 with the threaded holes 11, and the wing plates 21 are provided with side holes 22 arranged corresponding to the threaded holes 11. A plurality of pads 3 are clamped between the movable block 1 and the corresponding wing plates 21. The fastening bolt 4 passes through the side hole 22 and is threadedly connected with the threaded hole 11, and the diameter of the screw of the fastening bolt 4 is smaller than the aperture of the side hole 22.

[0021] The fixed block 2 is fixed on the stamping die as a whole. When adjusting the position of the locating pin 6, the movable block 1 is moved, and the pads 3 are added or removed between the two side walls of the movable block 1 and the two wing plates 21 until the locating pin 6 is in the correct position. After the locating pin 6 is positioned, the screw of the fastening bolt 4 is passed through the side hole 22 and threadedly connected with the threaded hole 11, and the head of the fastening bolt 4 is close to the side wall of the fixed block 2. Since the diameter of the screw of the fastening bolt 4 is smaller than the aperture of the side hole 22, even if the relative position between the movable block 1 and the fixed block 2 changes, and the position of the threaded hole 11 changes relative to the side hole 22, the axial projection of the threaded hole 11 always falls within the projection of the side hole 22, so that the fastening bolt 4 can normally cooperate with the threaded hole 11.

[0022] In one embodiment, the diameter of the head of the fastening bolt 4 is larger than the offset hole 22 . When the screw rod of the fastening bolt 4 is threadedly connected with the threaded hole 11 , the head of the fastening bolt 4 can fit tightly against the side wall of the fixing block 2 .

[0023] In one embodiment, the offset hole 22 forms an offset hole 221 and a countersunk hole 222 in sequence along the length direction, the diameter of the screw of the fastening bolt 4 is smaller than the aperture of the offset hole 221, and the diameter of the head of the fastening bolt 4 is larger than the aperture of the offset hole 221 and smaller than the aperture of the countersunk hole 222. The screw of the fastening bolt 4 is movable between the offset hole 221, and the axial projection of the threaded hole 11 always falls within the projection of the offset hole 221. After the fastening bolt 4 is threadedly connected to the threaded hole 11, the head of the fastening bolt 4 is no longer located outside the fixed block 2, but will sink into the countersunk hole 222 and fit tightly with the bottom of the countersunk hole 222 to achieve the fixation of the fixed block 2 and the movable block 1. Under this structure, the head of the fastening bolt 4 can be hidden inside the fixed block 2 without taking up extra space.

[0024] Furthermore, the positioning device also includes a filling piece 5, and the inner wall of the end of the countersunk hole 222 away from the offset hole 221 is arranged with an internal thread, and the filling piece 5 is arranged with an external thread, and the filling piece 5 can be threadedly connected with the countersunk hole 222. When the fastening bolt 4 is threadedly connected with the threaded hole 11, since there is a gap between the screw rod of the fastening bolt 4 and the offset hole 221, and there is a gap between the head of the fastening bolt 4 and the side wall of the countersunk hole 222, the stamping die may cause the fastening bolt 4 to loosen during use, thereby losing the fixing effect. The filling piece 5 can enter the interior of the countersunk hole 222 through a threaded connection, and after being fitted with the fastening bolt 4, it gives the fastening bolt 4 a compressive force, forcing the head of the fastening bolt 4 to fit tightly with the bottom of the countersunk hole 222, thereby improving the fixing effect. The outside of the filling piece 5 has a hexagonal hole, which is convenient for using a tool to screw the filling piece 5 into the countersunk hole 222.

[0025] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. An adjustable positioning device, characterized in that: include: A movable block (1), wherein a positioning pin (6) is provided on the movable block (1), and threaded holes (11) are respectively provided on two adjacent side walls of the movable block (1); A fixed block (2), the fixed block (2) having two wing plates (21) respectively matched with the two side walls of the movable block (1) having the threaded hole (11), and the wing plates (21) are provided with side holes (22) arranged corresponding to the threaded hole (11); A plurality of pads (3), wherein the plurality of pads (3) are clamped between the movable block (1) and the corresponding wing plates (21); A fastening bolt (4) passes through the offset hole (22) and is threadedly connected to the threaded hole (11); the diameter of the screw rod of the fastening bolt (4) is smaller than the hole diameter of the offset hole (22).

2. An adjustable positioning device according to claim 1, characterized in that: The offset hole (22) forms an offset hole (221) and a countersunk hole (222) in sequence along the length direction; the diameter of the screw rod of the fastening bolt (4) is smaller than the hole diameter of the offset hole (221); the diameter of the head of the fastening bolt (4) is larger than the hole diameter of the offset hole (221) and smaller than the hole diameter of the countersunk hole (222).

3. An adjustable positioning device according to claim 2, characterized in that: It also comprises a filling piece (5), wherein the inner wall of one end of the counterbore (222) away from the offset hole (221) is provided with an internal thread, and the filling piece (5) is provided with an external thread, and the filling piece (5) can be threadedly connected to the counterbore (222).

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