A plastic pipe positioning tool

Abstract

The utility model discloses a kind of plastic pipe positioning tool, including support by positioning ring, a pair of support ring and the support of a plurality of strut assembly, and a plurality of swing arm assemblies arranged between a pair of support ring, swing arm assembly includes a plurality of support arm between a pair of support ring by rotating shaft rotation installation, one end of support arm is rotatably installed a pair of rollers, and the other end is connected with support ring by elastic member, the outer wall of rotating shaft is fixedly sleeved with outer gear sleeve, a plurality of outer gear sleeve are commonly sleeved with same gear ring, the inner wall of gear ring is engaged transmission with outer gear sleeve, gear wheel is rotatably installed on the side of support ring, and the outer wall of gear wheel is engaged transmission with gear ring. The utility model is centered by swing arm assembly, gear ring and elastic cord cooperation in support ring to plastic pipe clamping, rotating hand hand wheel to drive swing arm assembly rotation, and the positioning and release of plastic pipe can be quickly realized.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, specifically to a plastic pipe positioning fixture. Background Technology

[0002] With the booming development of the plastic products industry, plastic pipes are increasingly widely used in many fields, and their processing precision and efficiency directly affect product quality and corporate benefits.

[0003] In the field of plastic pipe processing, plastic pipe positioning fixtures usually adopt rigid clamps. This structure cannot automatically adjust the clamping force according to the changes in pipe diameter. When processing plastic pipes of different specifications, it is easy to cause the pipe surface to be indented or deformed due to excessive clamping, or the pipe to be shifted or shaken during processing due to excessive clamping, which seriously affects the processing accuracy and yield. Utility Model Content

[0004] The purpose of this utility model is to provide a plastic pipe positioning fixture to solve the problem of inconvenience in adjusting the clamping force of conventional plastic pipe positioning fixtures mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic pipe positioning fixture, comprising a bracket assembled from a positioning ring, a pair of support rings, and several struts, and several swing arm assemblies disposed between the pair of support rings. Each swing arm assembly includes several support arms rotatably mounted between the pair of support rings via a rotating shaft. One end of each support arm is rotatably mounted with a pair of rollers, and the other end is connected to the support ring via an elastic member. An outer toothed sleeve is fixedly sleeved on the outer wall of the rotating shaft. A toothed ring is commonly sleeved among the several outer toothed sleeves. The inner wall of the toothed ring meshes with the outer toothed sleeve for transmission. A gear is rotatably mounted on one side of the support ring, and the gear meshes with the outer wall of the toothed ring for transmission.

[0006] Preferably, a plurality of limiting rods are fixedly installed between a pair of support rings, and a positioning sleeve is rotatably sleeved on the end of the support arm away from the roller, and the elastic member is an elastic rope sleeved on the limiting rods and the positioning sleeve.

[0007] Preferably, the outer wall of the positioning sleeve is provided with a groove for accommodating the elastic rope.

[0008] Preferably, the gear is rotatably mounted on the side wall of the support ring via a connecting shaft, one end of which passes through the support ring and is fixedly mounted with a handwheel.

[0009] Preferably, the roller has an arc-shaped structure at its central position.

[0010] Preferably, a pair of rollers are rotatably fitted onto both sides of the support arm.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a swing arm assembly, a toothed ring, and an elastic rope to center and clamp a plastic tube in a support ring. Rotating the handwheel drives the swing arm assembly to rotate, which can quickly achieve the positioning and release of the plastic tube. During the reset and clamping process, the elastic rope can automatically adjust the clamping force according to the diameter of the plastic tube, avoiding damage to the outer wall of the plastic tube due to excessive clamping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the support ring of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the support ring and support arm assembly of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the support arm of this utility model.

[0017] In the diagram: 1. Positioning ring; 2. Support rod; 3. Support ring; 4. Support arm; 5. Roller; 6. Gear ring; 7. Handwheel; 8. Gear; 9. Limiting rod; 10. Elastic rope; 11. Positioning sleeve; 12. Groove; 13. Outer gear sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3 This utility model provides a technical solution: a plastic tube positioning fixture, comprising a bracket assembled from a positioning ring 1, a pair of support rings 3, and several support rods 2, and several swing arm assemblies disposed between the pair of support rings 3. Each swing arm assembly includes several support arms 4 rotatably mounted between the pair of support rings 3 via a rotating shaft. A pair of rollers 5 are rotatably mounted on one end of each support arm 4, and the rollers 5 are rotatably sleeved on both sides of the support arm 4. An arc-shaped structure is provided at the center of each roller 5. The other end is connected to the support ring 3 via an elastic member. Through the arrangement of the swing arm assembly, the plastic tube can be centered and clamped within the positioning rings 3, avoiding processing position deviations caused by positional offset.

[0020] Please see Figures 2-4 Several limiting rods 9 are fixedly installed between a pair of support rings 3. A positioning sleeve 11 is rotatably sleeved at the end of the support arm 4 away from the roller 5. The elastic component is an elastic rope 10 sleeved on the limiting rods 9 and the positioning sleeve 11. The outer wall of the positioning sleeve 11 is provided with a groove 12 for accommodating the elastic rope 10. Since the elastic potential energy of the elastic rope 10 is limited, this device is only suitable for light processing of pipes, such as labeling, coding, appearance inspection, and laser engraving. An outer toothed sleeve 13 is fixedly sleeved on the outer wall of the rotating shaft. Several outer toothed sleeves 13 are sleeved together with the same toothed ring 6. The inner wall of the toothed ring 6 meshes with the outer toothed sleeve 13 for transmission. A gear 8 is rotatably installed on one side of the support ring 3. The gear 8 meshes with the outer wall of the toothed ring 6 for transmission. The gear 8 is rotatably installed on the side wall of the support ring 3 through a connecting shaft. One end of the connecting shaft passes through the support ring 3 and is fixedly installed with a handwheel 7.

[0021] When positioning the plastic tube, first turn the handwheel 7, the gear 8 meshes with the toothed ring 6 and rotates, the toothed ring 6 meshes with the outer toothed sleeve 13 and drives the support arm 4 to rotate around the axis and expand, the elastic rope 10 is in a taut state, then place the plastic tube to be processed in the middle of the support ring 3, after releasing the handwheel 7, under the action of the elastic potential energy of the elastic rope 10, drive the toothed ring 6 to rotate and reset, the roller 5 rotates to contact the outer wall of the plastic tube, clamping the plastic tube in the center position of the support ring 3, thus completing the positioning of the plastic tube.

[0022] This application uses a swing arm assembly, a toothed ring 6, and an elastic rope 10 to center and clamp a plastic tube in a support ring 3. Rotating the handwheel 7 drives the swing arm assembly to rotate, which can quickly achieve the positioning and release of the plastic tube. During the reset and clamping process, the elastic rope 10 can automatically adjust the clamping force according to the diameter of the plastic tube, avoiding damage to the outer wall of the plastic tube due to over-clamping, and at the same time improving the applicability of the positioning fixture.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for a plastic tube, characterized in that: The bracket consists of a positioning ring (1), a pair of support rings (3) and several struts (2), and several swing arm assemblies located between the pair of support rings (3). The swing arm assembly includes several support arms (4) rotatably mounted between the pair of support rings (3) via a rotating shaft. One end of each support arm (4) is rotatably mounted with a pair of rollers (5), and the other end is connected to the support ring (3) via an elastic member. An outer toothed sleeve (13) is fixedly sleeved on the outer wall of the rotating shaft. A toothed ring (6) is sleeved together among several outer toothed sleeves (13). The inner wall of the toothed ring (6) meshes with the outer toothed sleeve (13) for transmission. A gear (8) is rotatably mounted on one side of the support ring (3). The gear (8) meshes with the outer wall of the toothed ring (6) for transmission.

2. The plastic tube positioning fixture according to claim 1, characterized in that: A plurality of limiting rods (9) are fixedly installed between a pair of support rings (3). A positioning sleeve (11) is rotatably sleeved on one end of the support arm (4) away from the roller (5). The elastic component is an elastic rope (10) sleeved on the limiting rod (9) and the positioning sleeve (11).

3. The plastic tube positioning fixture according to claim 2, characterized in that: The outer wall of the positioning sleeve (11) is provided with a groove (12) for accommodating the elastic rope (10).

4. The plastic tube positioning fixture according to claim 1, characterized in that: The gear (8) is rotatably mounted on the side wall of the support ring (3) via a connecting shaft. One end of the connecting shaft passes through the support ring (3) and is fixedly mounted with a handwheel (7).

5. A plastic tube positioning fixture according to claim 1, characterized in that: The roller (5) has an arc-shaped structure at its central position.

6. A plastic tube positioning fixture according to claim 1, characterized in that: A pair of rollers (5) are rotatably fitted onto both sides of the support arm (4).

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