Cylindrical expansion pin for fixture positioning

Abstract

A cylindrical expansion pin for clamp positioning is characterized by comprising a fixed support, a positioning outer cylinder, a rotating inner core and a positioning T-shaped block, a positioning clamping groove is formed in the fixed support, the positioning outer cylinder is connected in the positioning clamping groove of the fixed support, the rotating inner core is in threaded meshing connection with the inner wall of the positioning outer cylinder, and the positioning T-shaped block is connected with the rotating inner core. The end of the positioning outer cylinder is provided with a rotary inner core, the front end of the rotary inner core is arranged to be of a conical structure, the front end of the positioning outer cylinder is connected with a plurality of T-shaped blocks through elastic bands, and one end, which is arranged to be of an inclined plane structure, of each T-shaped block is in contact with the outer wall of the front end of the rotary inner core. And then the inner core is rotated through rotation operation, so that the three sets of T-shaped blocks expand outwards to abut against the inner wall of the cylinder product, clamping and positioning of the product are completed, operation is convenient, and outer wall machining operation is not conducted through the product.

Description

TECHNICAL FIELD

[0001] The utility model relates to product clamping positioning equipment technical field especially relates to a cylindrical expansion pin for jig positioning. BACKGROUND

[0002] At present, the clamping and fixing device used for processing the pipe cylinder product is basically realized by two groups of adjustable fixed clamps to clamp the pipe cylinder product, that is, to complete the clamping and fixing of the product, but when using the clamp, the clamp is clamped on the outer wall of the pipe cylinder product to complete the clamping and fixing, so that the fixing mode will affect the processing operation on the outer wall of the pipe cylinder product.

[0003] Therefore, in order to solve the above problems, a cylindrical expansion pin for jig positioning is provided. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a cylindrical expansion pin for jig positioning, which is characterized by the following: the port of the pipe cylinder product is sleeved on one end of the positioning outer cylinder provided with a T-shaped block, then the inner core is rotated by rotating operation, so that the three groups of T-shaped blocks are expanded outward to abut against the inner wall of the cylinder product, the clamping and positioning of the product are completed, which is not only convenient to operate but also does not utilize the product for outer wall processing operation.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A cylindrical expansion pin for jig positioning, characterized by comprising a fixed support, a positioning outer cylinder, a rotating inner core and a positioning T-shaped block, the fixed support is provided with a positioning clamping groove, the positioning clamping groove of the fixed support is connected with the positioning outer cylinder, the rotating inner core is threadedly engaged with the inner wall of the positioning outer cylinder, the front end of the rotating inner core is provided with a conical structure, the front end of the rotating inner core is provided with a conical structure, the front end of the rotating inner core is provided with a conical structure,

[0007] The positioning clamping groove is provided with a D-shaped structure, the outer wall of the positioning outer cylinder is matched with the positioning clamping groove, the positioning outer cylinder is inserted into the positioning clamping groove of the fixed support, and the rotation of the positioning outer cylinder is prevented,

[0008] The positioning outer cylinder is provided with a connecting groove, the T-shaped block is provided with a fixing groove, and the elastic belt is located in the connecting groove and the fixing groove to complete the installation of the T-shaped block on the positioning outer cylinder.

[0009] Further, the front end of the limiting column is inserted into the limiting cylinder, and the limiting cylinder is fixed at the front end of the positioning outer cylinder and connected with the positioning outer cylinder as a whole.

[0010] Further, the number of the T-shaped blocks is three, and the three T-shaped blocks are arranged at adjacent 120-degree angle intervals on the outer wall of the positioning outer cylinder.

[0011] Further, the rear end of the rotating inner core is provided with an operation handle, so as to facilitate the rotation operation of the rotating inner core.

[0012] The utility model discloses beneficial effect:

[0013] The utility model discloses a fixture, through the port place of tubular product is covered in the one end of the T-shaped block of positioning outer cylinder, then through the rotation operation rotating inner core, make the forward movement of rotating inner core, because the front end part of rotating inner core is arranged into the conical structure in the positioning outer cylinder, along with the forward movement of rotating inner core, the inclined outer wall of rotating inner core will extrude the three groups of T-shaped blocks arranged on the positioning outer cylinder, make three groups of T-shaped blocks expand outward, thereby with the inner wall of the cylinder product abuts, completes the clamping positioning of product, not only convenient operation, and is from the interior of product to the product fixed, does not affect the processing operation to the outer wall of product. DRAWINGS

[0014] Figure 1 It is whole structure schematic diagram of the utility model discloses a kind of cylindrical expansion pin for fixture positioning;

[0015] Figure 2 It is whole cross-sectional structure schematic diagram of the utility model discloses a kind of cylindrical expansion pin for fixture positioning;As shown in: 1, fixed support, 2, positioning outer cylinder, 21, connecting groove, 22, limiting cylinder, 3, rotating inner core, 31, operation handle, 32, limiting column, 4, T-shaped block, 41, fixed groove, 5, elastic band. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be described below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0017] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model.

[0018] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mounting", "connection", "connection" should be broad sense understanding, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirect connection through intermediate medium, can be the communication of two elements inside, for ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Embodiment 1

[0020] As shown in the figure, the positioning clamping groove provided on the fixed support 1 is a D-shaped structure, and the outer wall shape of the positioning outer cylinder 2 is matched with the positioning clamping groove on the fixed support 1, the positioning outer cylinder 2 can be inserted into the positioning clamping groove of the fixed support 1, to prevent the rotation of the positioning outer cylinder 2,

[0021] The front end of the positioning outer cylinder 2 is connected with a plurality of T-shaped blocks 4 through the elastic belt 5, specifically, a connecting groove 21 is arranged on the positioning outer cylinder 2, and a fixing groove 41 is arranged on the T-shaped block 4, then the elastic belt 5 is arranged in the connecting groove 21 of the positioning outer cylinder 2 and the fixing groove 41 of the T-shaped block 4 to complete the installation of the three groups of T-shaped blocks 4 on the positioning outer cylinder 2, and the three groups of T-shaped blocks 4 are arranged at intervals of 120 degrees on the outer wall of the positioning outer cylinder 2

[0022] The wall at the port in the inner hole of the positioning outer cylinder 2 is provided with a thread, so that the rotating inner core 3 is threadedly engaged with the inner wall of the positioning outer cylinder 2, the rotating inner core 3 extends into the positioning outer cylinder 2, and the front end of the positioning outer cylinder 2 is provided as a tapered structure, so that one end provided as an inclined surface structure on the T-shaped block 4 is in contact with the outer wall of the front end of the rotating inner core 3.

[0023] Further, a limiting column 32 is arranged at the front end of the rotating inner core 3, the front end of the limiting column 32 extends into the limiting cylinder 22, the limiting cylinder 22 is fixed at the front end of the positioning outer cylinder 2 and connected with the positioning outer cylinder 2 as a whole, and an operating handle 21 is arranged at the rear end of the rotating inner core 3, to facilitate the rotation of the rotating inner core 3.

[0024] Embodiment 2

[0025] The fixed support 1 is used for positioning the utility model, the fixed support 1 is installed on the processing table first, then the utility model is inserted into the positioning clamping groove provided on the fixed support 1, which is a D-shaped structure, to complete the insertion of the utility model on the fixed support 1,

[0026] Then the tube product is sleeved on the position of the positioning outer cylinder 2 provided with the T-shaped blocks 4, then the rotating inner core 3 is rotated and moved forward by rotating the handle 31, since the front end part of the rotating inner core 3 located in the positioning outer cylinder 2 is provided with a tapered structure, with the forward movement of the rotating inner core 3, the inclined structure of the outer wall of the rotating inner core 3 extrudes the three groups of T-shaped blocks 4 provided on the positioning outer cylinder 2, so that the three groups of T-shaped blocks 4 are expanded outward to abut against the inner wall of the tube product, and the clamping and positioning of the product is completed.

[0027] The whole process is convenient to operate, and the product is fixed from the inside of the product, so that the production operation of processing the outer wall of the product is not affected.

[0028] When the processed product needs to be taken down, the handle 31 is reversely rotated to slowly move the rotating inner core 3 backward, since the elastic contraction force of the elastic belt 5, with the backward movement of the rotating inner core 3, the three groups of T-shaped blocks 4 are slowly tightened into the positioning outer cylinder 2, the reset movement of the three groups of T-shaped blocks 4 is realized, and then the product can be taken down, and the operation of disassembling the product is also very simple and convenient.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The components mentioned in the utility model are common technologies in the prior art, which should be understood by the technicians in the industry, the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cylindrical expansion pin for fixture positioning, characterized by Including fixed support, positioning outer cylinder, rotating inner core and positioning T-shaped block, the fixed support is provided with positioning clamping groove, the positioning clamping groove of the fixed support is connected with the positioning outer cylinder, the rotating inner core is connected with the inner wall of the positioning outer cylinder by thread engagement, the front end of the rotating inner core is provided with conical structure, the front end of the positioning outer cylinder is connected with multiple T-shaped blocks by elastic belt, one end of the T-shaped block provided with inclined surface structure is in contact with the outer wall of the front end of the rotating inner core.

2. A cylindrical expansion anchor for fixture positioning according to claim 1, wherein The positioning clamping groove is provided with D-shaped structure, and the outer wall of the positioning outer cylinder is matched with the positioning clamping groove.

3. A cylindrical expansion anchor for fixture positioning according to claim 1, wherein The positioning outer cylinder is provided with connecting groove, and the T-shaped block is provided with fixing groove, so that the elastic belt is located in the connecting groove and the fixing groove to complete the installation of the T-shaped block on the positioning outer cylinder.

4. A cylindrical expansion anchor for fixture positioning according to claim 1, wherein The front end of the rotating inner core is provided with limiting column, the front end of the limiting column extends into the limiting cylinder, and the limiting cylinder is fixed at the front end of the positioning outer cylinder and connected with the positioning outer cylinder as a whole.

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