Cylinder positioning device

Abstract

The utility model discloses a cylinder positioning device which comprises a support and a positioning mechanism. The support is provided with an elastic movable cavity. The positioning mechanism comprises a positioning rod and a spring, the positioning rod movably penetrates through the support and extends into the elastic movable cavity, the spring is arranged on the positioning rod in a sleeving mode and abuts against the upper surface of the support and the lower surface of the top of the positioning rod, the positioning rod is provided with a positioning hole, and the position of the positioning rod is matched with the position of the cylinder. The diameter of the positioning hole is larger than that of the cylinder. According to the cylinder positioning device, rapid and accurate positioning can be conducted through the cylinder arranged in the casting, the positioning efficiency and accuracy are improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting positioning, in particular to a cylindrical positioning device. Background Art

[0002] When inspecting or machining castings, they need to be positioned. Some castings have cylinders but no positioning holes in the product structure, so the positioning holes cannot be used to accurately position the castings, and the dimensional accuracy of the castings cannot be guaranteed. In addition, it is difficult to ensure the accuracy of the casting products by relying on the shape to position the castings, which causes great difficulties in later inspection or machining. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a cylindrical positioning device, which can use the cylindrical arranged inside the casting to perform rapid and accurate positioning, improve positioning efficiency and accuracy, and reduce production costs.

[0004] An embodiment of the utility model provides a cylindrical positioning device, including a bracket and a positioning mechanism; the bracket is provided with an elastic movable chamber; the positioning mechanism includes a positioning rod and a spring, the positioning rod is movably inserted into the bracket and extends into the elastic movable chamber, the spring is sleeved on the positioning rod, the spring respectively abuts against the upper surface of the bracket and the lower surface of the top of the positioning rod, the positioning rod is provided with a positioning hole, the position of the positioning rod is adapted to the position of the cylinder, and the diameter of the positioning hole is larger than the diameter of the cylinder.

[0005] According to some embodiments of the utility model, the positioning mechanism further includes a fixing screw and a gasket, the second end of the positioning rod is provided with a screw hole, the gasket is sleeved on the fixing screw, and the fixing screw is installed in the screw hole.

[0006] According to some embodiments of the present utility model, an annular boss is provided on the top of the positioning rod, and the spring abuts against the lower surface of the annular boss.

[0007] According to some embodiments of the present invention, a guide surface is provided at the outward opening of the positioning hole.

[0008] According to some embodiments of the present invention, the diameter of the positioning hole gradually decreases from the outside to the inside along the axial direction.

[0009] According to some embodiments of the present invention, the number of the positioning mechanisms is 2, and a line connecting the two positioning mechanisms forms an angle with a side edge of the bracket.

[0010] According to some embodiments of the present invention, the bracket includes a support plate and a support, and the support plate is installed on the support.

[0011] According to some embodiments of the utility model, external corner blocks are provided on both sides of the casting.

[0012] According to some embodiments of the utility model, a limiting block is installed on the support plate, and a limiting groove is provided on the limiting block, and the size of the limiting groove is adapted to the size of the outer corner block.

[0013] According to some embodiments of the present invention, the number of the limit blocks is 4, and the limit blocks are distributed on the support plate in a rectangular shape.

[0014] The utility model has at least the following beneficial effects:

[0015] The cylindrical positioning device comprises a bracket and a positioning mechanism, wherein the positioning mechanism comprises a positioning rod and a spring, wherein the spring is sleeved on the positioning rod, the positioning rod is penetrated through the support plate, the first end of the spring abuts against the support plate, the first end of the positioning rod is provided with a positioning hole, the position of the positioning rod is adapted to the position of the cylinder, and the diameter of the positioning hole is larger than the diameter of the cylinder. The cylindrical positioning device can use the cylinder provided inside the casting for rapid and accurate positioning, thereby improving positioning efficiency and accuracy and reducing production costs.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of a cylindrical positioning device according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic structural diagram of a positioning mechanism of a cylindrical positioning device is shown;

[0020] Figure 3 for Figure 1 A schematic cross-sectional view of the positioning mechanism of the cylindrical positioning device is shown;

[0021] Figure 4 It is a schematic diagram of the structure of the cylindrical positioning device and the casting according to the embodiment of the utility model;

[0022] Figure 5A schematic structural diagram of a cylindrical positioning device and a casting from another perspective of an embodiment of the utility model;

[0023] Figure 6 for Figure 5 A schematic cross-sectional view of the cylindrical positioning device and the casting AA is shown;

[0024] Figure 7 for Figure 4 Schematic diagram of the structure of the casting is shown.

[0025] Reference numerals:

[0026] The bracket 100, the support plate 110, the support 120, the connecting plate 130, and the elastic activity chamber 140;

[0027] Positioning mechanism 200, positioning rod 210, positioning hole 211, annular boss 212, guide surface 213, spring 220, fixing screw 230, gasket 240;

[0028] Limit block 300 , limit groove 310 , casting 400 , cylinder 410 , outer corner block 420 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present utility model, unless otherwise clearly defined, words such as “set,” “install,” “connect,” and “connected” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present utility model based on the specific content of the technical solution.

[0033] The technical solution of the utility model is described in detail below through the accompanying drawings and specific embodiments:

[0034] Please refer to Figures 1 to 3 The present embodiment discloses a cylindrical positioning device, including a bracket 100 and a positioning mechanism 200; the bracket 100 is provided with an elastic movable chamber 140; the positioning mechanism 200 includes a positioning rod 210 and a spring 220, the positioning rod 210 is movably arranged in the bracket 100 and extends into the elastic movable chamber 140, the spring 220 is sleeved on the positioning rod 210, the spring 220 respectively abuts against the upper surface of the bracket 100 and the lower surface of the top of the positioning rod 210, the positioning rod 210 is provided with a positioning hole 211, the position of the positioning rod 210 is adapted to the position of the cylinder 410, and the diameter of the positioning hole 211 is larger than the diameter of the cylinder 410. It should be noted that the cylinder 410 is an original structure on the casting 400. In order to accurately position the casting 400, the present embodiment adaptively sets a positioning rod 210 for the cylinder 410 on the casting 400, and sets a positioning hole 211 with a diameter larger than the cylinder 410 on the positioning rod 210, so that the cylinder 410 can be inserted into the positioning hole 211, thereby positioning the casting 400 to a preset position. In addition, since the cylinder 410 is located in the cavity of the casting 400, the deformation or position offset during the casting process is relatively small, and it can be used as a reference for accurate positioning. By inserting the cylinder 410 of the casting 400 into the positioning hole 211, rapid positioning is performed, thereby using the cylinder 410 provided inside the casting 400 for accurate positioning, thereby improving positioning efficiency and accuracy.

[0035] Please refer to Figure 2 and Figure 3 The positioning mechanism 200 further includes a fixing screw 230 and a gasket 240. The positioning rod 210 is provided with a screw hole. The gasket 240 is sleeved on the fixing screw 230, and the fixing screw 230 is installed in the screw hole. The positioning mechanism 200 moves downward after contacting the casting 400 and receiving force, and the spring 220 is compressed; when the casting 400 is removed, the spring 220 is reset and drives the positioning mechanism 200 to move upward, and the gasket 240 prevents the positioning mechanism 200 from escaping from the positioning hole 211.

[0036] Please refer to Figure 2 and Figure 3The top of the positioning rod 210 is provided with an annular boss 212, and the spring 220 abuts against the lower surface of the annular boss 212. The annular boss 212 limits the range of movement of the spring 220 to prevent the spring 220 from falling.

[0037] Please refer to Figure 3 A guide surface 213 is provided at the external opening of the positioning hole 211, and the diameter of the positioning hole 211 gradually decreases from the outside to the inside along the axial direction; when the cylinder 410 of the casting 400 is aligned with the positioning hole 211, under the action of gravity, the cylinder 410 slides into the positioning hole 211 along the guide surface 213 to achieve rapid positioning.

[0038] Please refer to Figure 1 and Figure 5 There are two positioning mechanisms 200, and the line connecting the two positioning mechanisms 200 forms an angle with the side of the bracket 100; positioning is performed through two positioning points, and the positioning is relatively accurate.

[0039] Please refer to Figure 5 and Figure 6 The support 100 includes a support plate 110 and a support 120. The support plate 110 is mounted on the support 120. There are two supports 120, and the two supports 120 are connected by a connecting plate 130. The support 120 is an L-shaped structure, and an elastic activity chamber 140 is formed between the two L-shaped supports 120 to provide space for the positioning mechanism 200 to float up and down. The connecting plate 130 is a single plate or multiple parallel plates to ensure the stability of the support 100.

[0040] Please refer to Figure 4 and Figure 7 In some embodiments, outer corner blocks 420 are provided on both sides of the casting 400, and the limiting blocks 300 are installed on the support plate 110. The limiting grooves 310 are provided on the limiting blocks 300, and the size of the limiting grooves 310 is adapted to the size of the outer corner blocks 420. The outer corner blocks 420 are provided on the outer side of the casting 400, and may be deformed during the casting process, making it difficult to ensure the positioning accuracy of the casting 400, so the outer corner blocks 420 cannot be used to accurately position the casting 400. Specifically, the number of the limiting blocks 300 is 4, and the limiting blocks 300 are distributed in a rectangular shape on the support plate 110; the positioning mechanism 200 contacts the casting 400 and moves downward after being subjected to force, and the outer corner blocks 420 of the casting 400 move downward and fall into the limiting grooves 310, and the limiting grooves 310 play a role in limiting and fixing.

[0041] When in use, the cylindrical positioning device is placed on a work surface, and the cylinder 410 of the casting 400 is inserted into the positioning hole 211 for rapid positioning; the positioning mechanism 200 moves downward after contacting the casting 400 under force, and the outer corner block 420 of the casting 400 moves downward and falls into the limiting groove 310, and the limiting groove 310 plays a role in limiting and fixing. The positioning mechanism 200 is provided with a spring 220, which is a floating structure and can move up and down in the elastic activity chamber 140; it can also be well positioned when the blank of the casting 400 changes. After the inspection or processing is completed, the casting 400 is taken out, and the positioning mechanism 200 is reset by the spring force. There is no need to press or clamp the casting 400, and the outer surface of the casting 400 will not be damaged; the cylinder 410 provided inside the casting 400 can be used for rapid and accurate positioning, thereby improving the inspection and processing efficiency and reducing the production cost.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cylindrical positioning device for positioning a casting (400) having a cylindrical (410) disposed therein, characterized in that: include: A support (100), wherein the support (100) is provided with an elastic activity chamber (140); A positioning mechanism (200), the positioning mechanism (200) comprising a positioning rod (210) and a spring (220), the positioning rod (210) being movably arranged in the bracket (100) and extending into the elastic movable chamber (140), the spring (220) being sleeved on the positioning rod (210), the spring (220) respectively abutting against the upper surface of the bracket (100) and the lower surface of the top of the positioning rod (210), the positioning rod (210) being provided with a positioning hole (211), the position of the positioning rod (210) being adapted to the position of the cylinder (410), and the diameter of the positioning hole (211) being larger than the diameter of the cylinder (410).

2. The cylindrical positioning device according to claim 1, characterized in that: The positioning mechanism (200) further comprises a fixing screw (230) and a gasket (240); the positioning rod (210) is provided with a screw hole; the gasket (240) is sleeved on the fixing screw (230); and the fixing screw (230) is installed in the screw hole.

3. The cylindrical positioning device according to claim 1, characterized in that: An annular boss (212) is provided on the top of the positioning rod (210), and the spring (220) abuts against the lower surface of the annular boss (212).

4. The cylindrical positioning device according to claim 1, characterized in that: A guide surface (213) is provided at the outward opening of the positioning hole (211).

5. The cylindrical positioning device according to claim 1 or 4, characterized in that: The diameter of the positioning hole (211) gradually decreases from the outside to the inside along the axial direction.

6. The cylindrical positioning device according to claim 1, characterized in that: The number of the positioning mechanisms (200) is two, and a line connecting the two positioning mechanisms (200) forms an angle with a side edge of the bracket (100).

7. The cylindrical positioning device according to claim 1, characterized in that: The support (100) comprises a support plate (110) and a support seat (120), wherein the support plate (110) is mounted on the support seat (120).

8. The cylindrical positioning device according to claim 7, characterized in that: External corner blocks (420) are provided on both sides of the casting (400).

9. The cylindrical positioning device according to claim 8, characterized in that: A limiting block (300) is installed on the support plate (110), and a limiting groove (310) is provided on the limiting block (300), wherein the size of the limiting groove (310) is adapted to the size of the outer corner block (420).

10. The cylindrical positioning device according to claim 9, characterized in that: The number of the limit blocks (300) is four, and the limit blocks (300) are distributed on the support plate (110) in a rectangular shape.

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