Inner support positioning clamp for plates

Abstract

The utility model discloses an inner support positioning fixture for sheet material, which comprises a base plate, an inner support seat and a pressing plate, the lower wall of the base plate is provided with at least two first telescopic devices and a second telescopic device, and the second telescopic device is arranged between the two first telescopic devices. A driving hole allowing a first driving rod of the first telescopic device to stretch into is formed in the middle of the inner supporting seat, a plurality of arc-shaped parts are distributed on the inner supporting seat at intervals with the driving hole as a base point, and the first driving rod can drive the outer walls of the arc-shaped parts to be switched between the outwards-expanding position and the inwards-contracting position. The pressing plate is provided with a clamping column matched with the driving end of the second telescopic device, the clamping column can apply pressure to the pressing seat to enable the pressing seat to move towards the base plate, and the pressing plate is provided with a column seat opposite to the first telescopic device. The tubular object is placed in the inner supporting base, then the pressing plate is placed at the upper end of the tubular object, and the column base extends into an opening in the upper end of the tubular object.

Description

An internal support positioning clamp for sheet metal Technical Field

[0001] This utility model relates to the field of clamps, and in particular to an internal support positioning clamp for sheet metal. Background Technology

[0002] A fixture is a device used in the mechanical manufacturing process to fix the workpiece in the correct position for construction or inspection.

[0003] In the processing of a tubular object (with ribs on its inner wall), a contouring structure is generally used for positioning. However, since the product is small, existing designs typically use an elastic layer inside the inner support to limit its movement. However, there are still significant dimensional errors, which affect the consistency of the sidewall punching. Summary of the Invention

[0004] The main purpose of this invention is to propose an internal support positioning fixture for sheet metal, which aims to improve the existing positioning fixture structure, ensure the accurate positioning of irregularly shaped tubular objects, and thus improve the stability of processing.

[0005] To achieve the above objectives, this utility model proposes an internal support positioning clamp for sheet metal, comprising:

[0006] A substrate, wherein the lower wall of the substrate is provided with at least two first telescopic devices and a second telescopic device, and the second telescopic device is disposed between the two first telescopic devices;

[0007] The inner support seat has a drive hole in its center for the first drive rod of the first telescopic device to extend into. The inner support seat has multiple arc-shaped portions spaced apart from the drive hole.

[0008] The first drive rod can drive the outer walls of multiple arc-shaped parts to switch between an outward expanding position and an inward contracting position;

[0009] The pressure plate is equipped with a locking pin that cooperates with the drive end of the second telescopic device. The locking pin can apply pressure to the pressure base towards the substrate.

[0010] The pressure plate is provided with a column base that is positioned opposite to the first telescopic device.

[0011] In actual installation, the tubular object is placed inside the inner support, and then the pressure plate is placed at the upper end of the tubular object, with the column base extending into the opening at the upper end of the tubular object.

[0012] Then the second telescopic device applies downward pressure to the pressure plate to stabilize the locking pin. Then the first telescopic device drives the first drive rod to move and moves multiple arc-shaped parts outward, thereby supporting the inner wall of the tubular object, which facilitates processing or use. Attached Figure Description

[0013] Figure 1 is an exploded view of this utility model;

[0014] Figure 2 is a cross-sectional view of this utility model;

[0015] Figure 3 is a three-dimensional schematic diagram of this utility model;

[0016] Figure 4 is a schematic diagram of the inner support seat;

[0017] Figure 5 is a schematic diagram of a tubular structure.

[0018] In the picture,

[0019] 1 is the substrate.

[0020] 2 is the inner support, 20 is the arc-shaped part, and 21 is the drive hole.

[0021] 3 is the pressure plate, 30 is the retaining post, and 31 is the column base.

[0022] 41 is a rib, 42 is a groove.

[0023] 5 is a stepped groove, 51 is an arc-shaped groove, and 52 is an inner protrusion.

[0024] 6 is the jack, 61 is the female hole, and 62 is the female hole.

[0025] 71 is the first telescopic device, and 72 is the second telescopic device.

[0026] 81 is an inclined plane, 82 is a wedge-shaped part, and 9 is a groove. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] As shown in Figures 1 to 5, an internal support positioning clamp for sheet metal includes:

[0031] The substrate 1 has at least two first telescopic devices 71 and a second telescopic device 72 on its lower wall, with the second telescopic device 72 disposed between the two first telescopic devices 71.

[0032] The inner support 2 has a drive hole 21 in its middle for the first drive rod of the first telescopic device 71 to extend into. The inner support 2 has a plurality of arc-shaped portions 20 spaced apart from the drive hole 21.

[0033] The first drive rod can drive the outer wall of the multiple arc-shaped parts 20 to switch between an outward expanding position and an inward contracting position;

[0034] The pressure plate 3 is provided with a locking post 30 that cooperates with the drive end of the second telescopic device 72. The locking post 30 can apply pressure to the pressure base in the direction of moving towards the base plate 1.

[0035] The pressure plate 3 is provided with a column base 31 that is opposite to the first telescopic device 71.

[0036] In actual installation, the tubular object is placed inside the inner support 2, and then the pressure plate 3 is placed at the upper end of the tubular object, with the column base 31 extending into the opening at the upper end of the tubular object.

[0037] Then the second telescopic device 72 applies downward pressure to the pressure plate 3 to stabilize the locking post 30. Then the first telescopic device 71 drives the first drive rod to move and moves the multiple arc-shaped parts 20 outward, thereby supporting the inner wall of the tubular object, which facilitates processing or use.

[0038] Specifically, the outer wall of the arc-shaped portion 20 is provided with a groove 42 corresponding to the rib 41 of the tubular object, thereby achieving precise positioning.

[0039] In this embodiment of the invention, the outer wall of the arc-shaped portion 20 is recessed with a groove, which facilitates the processing of the tubular object.

[0040] Specifically, the substrate 1 is provided with a stepped groove 5, which includes a hole groove and an inner groove. The inner groove is provided with an arc-shaped groove 51. The inner support 2 is provided with an inner protrusion 52 that cooperates with the inner groove. A screw passes through the arc-shaped groove 51 and is screwed onto the inner protrusion 52, thereby realizing the installation of the inner support 2.

[0041] In this embodiment of the invention, a gap is provided between adjacent arc-shaped portions.

[0042] The upper end of the first drive rod is provided with a wedge-shaped part 82. The maximum outer diameter of the wedge-shaped part 82 is greater than the inner diameter of the drive hole 21, thereby realizing the outward expansion or inward contraction of the arc-shaped part.

[0043] Specifically, the arc-shaped portion has a chamfer at the end of the drive hole 21, which facilitates the guidance and movement of the upper end of the first drive rod.

[0044] In this embodiment of the utility model, the pressure plate 3 is provided with a female hole 61 and a female hole 62 in the middle. The upper end of the locking post 30 is provided with a locking head 6 with an outer diameter larger than that of the female hole 61. The outer diameter of the locking head 6 is smaller than that of the female hole 62, thereby realizing the locking of the pressure plate 3 and facilitating disassembly. The design of the female hole 62 is mainly to facilitate the feeding of tubular objects, and the pressure plate 3 is installed after the objects are fed.

[0045] Specifically, the retaining post 30 is made of an elastic material or a rigid material.

[0046] In this embodiment of the utility model, the first telescopic device 71 and the second telescopic device 72 are telescopic motors.

[0047] In this embodiment of the invention, the upper section of the driving hole 21 is an inclined surface 81, but it can also be achieved by a wedge-shaped part.

[0048] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An internal support positioning clamp for sheet metal, characterized in that, include: A substrate, wherein the lower wall of the substrate is provided with at least two first telescopic devices and a second telescopic device, and the second telescopic device is disposed between the two first telescopic devices; The inner support seat has a drive hole in its middle for the first drive rod of the first telescopic device to extend into. The inner support seat has multiple arc-shaped parts spaced apart from the drive hole. The first drive rod can drive the outer walls of the multiple arc-shaped parts to switch between an outward expansion position and an inward contraction position. The pressure plate has a locking post that cooperates with the drive end of the second telescopic device. The locking post can apply pressure to the pressure seat to move towards the substrate. The pressure plate has a column seat that is disposed opposite to the first telescopic device.

2. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The outer wall of the arc-shaped part is provided with grooves corresponding to the ribs of the tubular object.

3. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The outer wall of the arc-shaped part is recessed with a groove.

4. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The substrate is provided with a stepped groove, which includes a hole groove and an inner groove. The inner groove is provided with an arc-shaped groove. The inner support is provided with an inner protrusion that cooperates with the inner groove. A screw passes through the arc-shaped groove and is screwed onto the inner protrusion.

5. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: A gap is provided between adjacent arc-shaped portions, and a wedge-shaped portion is provided at the upper end of the first drive rod, wherein the maximum outer diameter of the wedge-shaped portion is greater than the inner diameter of the drive hole.

6. The internal support positioning fixture for sheet metal as described in claim 5, characterized in that: The arc-shaped portion has a chamfer at the end of the drive hole.

7. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The pressure plate has a female hole and a male hole in the middle, and the upper end of the clamping post has a clamping head with an outer diameter larger than that of the female hole, and the outer diameter of the clamping head is smaller than that of the female hole.

8. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The locking pin is made of an elastic or rigid material.

9. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The first telescopic device and the second telescopic device are telescopic motors.

10. The internal support positioning fixture for sheet metal as described in claim 1, characterized in that: The upper section of the driving hole is an inclined surface.

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