Quick positioning and clamping tool

Abstract

The utility model provides a quick positioning and clamping tool which comprises a first clamping disc and a second clamping disc, the second clamping disc is arranged to protrude upwards from the upper surface of the first clamping disc, the first clamping disc and the second clamping disc are coaxially arranged, the diameter of the first clamping disc is larger than that of the second clamping disc, and the diameter of the second clamping disc is larger than that of the first clamping disc. A plurality of outer mounting holes which are distributed in the circumferential direction are formed in the first clamping disc, a plurality of inner mounting holes and kidney-shaped holes which are distributed in the circumferential direction are formed in the second clamping disc, and the kidney-shaped holes extend in the diameter direction of the second clamping disc and are closer to the center of the second clamping disc relative to the inner mounting holes. By means of the positioning and clamping tool, clamping deformation of the cabin can be prevented, the precision requirements of dimensional tolerance and form and location tolerance after machining are met, the key groove is formed in the bottom of the tool to be rapidly positioned with a machine tool workbench, the clamping and aligning time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, in particular to a quick positioning clamping tooling. Background Art

[0002] In existing technology, the metal cabin structure is a thin-walled rotating part with a relatively thin wall thickness, making it difficult to clamp. Conventional clamping can also lead to deformation and dimensional deviations during the clamping process. The metal cabin undergoes a machining process that includes rough turning of the outer diameter, rough milling of the inner cavity, semi-finish turning of the outer diameter, fine milling of the inner cavity, and finally fine turning of the outer diameter. Without proper positioning and clamping fixtures to secure the parts, deformation during machining is also very likely to occur.

[0003] Therefore, it is necessary to provide a rapid positioning and clamping tool to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a fast positioning and clamping tool.

[0005] According to one aspect of the present invention, a quick positioning and clamping tool is provided, including a first clamping plate and a second clamping plate, the second clamping plate is protruding upward from the upper surface of the first clamping plate, the first clamping plate and the second clamping plate are coaxially arranged, the diameter of the first clamping plate is larger than the diameter of the second clamping plate, the first clamping plate is provided with a plurality of circumferentially distributed external mounting holes, the second clamping plate is provided with a plurality of circumferentially distributed internal mounting holes and waist-shaped holes, the waist-shaped holes extend along the diameter direction of the second clamping plate, and the waist-shaped holes are closer to the center of the second clamping plate relative to the inner mounting holes.

[0006] Preferably, the first chucking disc is provided with two first positioning pin holes that are oppositely arranged, and the two first positioning pin holes are respectively located on two radial sides of the first chucking disc.

[0007] Preferably, the second chucking disc is provided with two second positioning pin holes that are oppositely arranged, and the two second positioning pin holes are respectively located on two radial sides of the second chucking disc.

[0008] Preferably, a keyway is provided on a surface of the first clamping disc away from the second clamping disc, and the keyway is located at the outer edge of the first clamping disc and radially passes through the outer edge of the first clamping disc.

[0009] Preferably, the first positioning pin hole and the second positioning pin hole are located on the same radial line.

[0010] Preferably, the external mounting holes are evenly spaced and distributed on both sides of the first positioning pin hole, and there are 5 external mounting holes distributed on both sides of the first positioning pin hole.

[0011] Preferably, the inner mounting holes are evenly spaced and distributed on both sides of the second positioning pin hole, and there are two inner mounting holes on each side of the second positioning pin hole.

[0012] Preferably, the second clamping plate is provided with four waist-shaped holes evenly spaced circumferentially.

[0013] Preferably, the outer mounting hole and the first positioning pin hole both axially penetrate the first chucking plate, and the inner mounting hole and the second positioning pin hole both axially penetrate the second chucking plate and the first chucking plate.

[0014] Preferably, the keyway is located radially outside the first positioning pin hole and extends radially along the diameter of the first positioning pin hole on the first chuck.

[0015] Compared with the prior art, the rapid positioning and clamping tooling provided by the present invention has the following beneficial effects:

[0016] Due to the adoption of the above-mentioned technical scheme, the utility model has the advantages of simple structure, ingenious design and low cost. The positioning and clamping tool can prevent the cabin from being clamped and deformed, and the accuracy requirements of the dimensional tolerance and form and position tolerance after processing are guaranteed. In addition, a keyway is provided at the bottom of the tool for rapid positioning with the machine tool worktable, which shortens the clamping and alignment time and improves production efficiency. The design of the first clamping plate and the second clamping plate can be used for the processing of two metal cabins at the same time, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 This is a three-dimensional diagram of the rapid positioning and clamping tooling of the utility model;

[0019] Figure 2 This is the main view of the quick positioning and clamping tooling of the utility model;

[0020] Figure 3 This is a rear view of the quick positioning and clamping tooling of the utility model;

[0021] Figure 4 This is a side view of the quick positioning and clamping tooling of the utility model after being fixed to the cabin;

[0022] Figure 5 It is a front view of the machine tool workbench of the present utility model.

[0023] Among them, A. positioning clamping tool, B. cabin, C. machine tool worktable, 1. first chuck, 11. first positioning pin hole, 12. external mounting hole, 13. keyway, 2. second chuck, 21. second positioning pin hole, 22. internal mounting hole, 23. waist-shaped hole, 3. positioning groove. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0026] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0027] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0030] See also Figure 1 This embodiment discloses a rapid positioning and clamping tool A, comprising a first clamping plate 1 and a second clamping plate 2. The second clamping plate 2 protrudes upward from the upper surface of the first clamping plate 1, and the first clamping plate 1 and the second clamping plate 2 are coaxially arranged. The diameter of the first clamping plate 1 is larger than the diameter of the second clamping plate 2.

[0031] See also Figure 2 The first chuck plate 1 is provided with ten circumferentially distributed external mounting holes 12. Two first locating pin holes 11 are positioned opposite each other, one on each radial side of the first chuck plate 1. The external mounting holes 12 are evenly spaced on either side of the first locating pin hole 11, with five external mounting holes 12 on each side of the first locating pin hole 11. The angle formed by the line connecting two adjacent external mounting holes 12 and the center of the first chuck plate 1 is 30°±1°.

[0032] The second chuck plate 2 is provided with four circumferentially distributed inner mounting holes 22. Two second locating pin holes 21 are positioned opposite each other, one on each radial side of the second chuck plate 2. The inner mounting holes 22 are evenly spaced on either side of the second locating pin hole 21, with two inner mounting holes 22 on each side of the second locating pin hole 21. The angle formed by the line connecting two adjacent inner mounting holes 22 and the center of the second chuck plate 2 is 60°±1°.

[0033] The first locating pin hole 11 and the second locating pin hole 21 are located on the same radial line. Four waist-shaped holes 23 are evenly spaced circumferentially on the second chuck plate 2. These waist-shaped holes 23 extend along the diameter of the second chuck plate 2 and are closer to the center of the second chuck plate 2 than the inner mounting hole 22. The angle formed by the line connecting the second locating pin hole 21, the adjacent waist-shaped hole 23, and the center of the second chuck plate 2 is 45°±1°.

[0034] See also Figure 3 The outer mounting hole 12 and the first locating pin hole 11 both axially extend through the first chuck plate 1, while the inner mounting hole 22 and the second locating pin hole 21 both axially extend through the second chuck plate 2 and the first chuck plate 1. A keyway 13 is defined on the side of the first chuck plate 1 facing away from the second chuck plate 2. The keyway 13 is located at the outer edge of the first chuck plate 1 and radially extends through the outer edge of the first chuck plate 1. Furthermore, the keyway 13 is located radially outward of the first locating pin hole 11 and extends radially along the diameter of the first locating pin hole 11 on the first chuck plate 1.

[0035] The positioning and clamping tool A of this embodiment can be used to clamp two sizes of metal cabins B. It has strong applicability. The first clamping plate 1 can be used to fix the metal cabin B with a larger diameter, and the second clamping plate can be used to fix the metal cabin B with a smaller diameter.

[0036] See also Figure 4 and Figure 5Taking the clamping of a larger diameter cabin B as an example, the positioning fixture A is first installed on the machine tool worktable C. Worktable C has a corresponding positioning slot 3. A flat key is located in the positioning slot 13 corresponding to the keyway 13, and a T-shaped block with a threaded hole is located in the positioning slot 3 corresponding to the waist-shaped hole 23. During installation, the keyway 13 on the back of the first chuck 1 mates with the flat key in the positioning slot 3 on the machine tool worktable C for quick positioning. Bolts are then passed through the waist-shaped hole 23 and tightened into the threaded holes of the T-shaped block in the positioning slot 3, thereby securing the fixture to the machine tool worktable C. Next, locating pins are placed in the two first locating pin holes 11 on the first chuck 1. The corresponding holes on cabin B are aligned with the locating pins for quick positioning. Bolts are then inserted through the corresponding external mounting holes 12 and holes on cabin B to secure the fixture. Simultaneously, when the first chuck 1 is used to secure cabin B, the second chuck 2, due to its upward projection, also provides support for the inner wall of cabin B.

[0037] This fixture can be used for machining external diameters on CNC horizontal lathes and internal cavities on boring and milling machines, offering excellent versatility. It features rapid clamping and positioning, making it suitable for mass production, significantly reducing setup and alignment time and improving work efficiency. During the clamping process, the cabin body is clamped or pressed against the fixture, preventing deformation of thin-walled metal tubular parts, thereby ensuring the required dimensional and geometric tolerances after processing.

[0038] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations of the present invention that fall within the scope of the appended claims and their equivalents.

Claims

1. A rapid positioning and clamping tool, characterized in that: It includes a first clamping plate and a second clamping plate, the second clamping plate is protruding upward from the upper surface of the first clamping plate, the first clamping plate and the second clamping plate are coaxially arranged, the diameter of the first clamping plate is larger than the diameter of the second clamping plate, the first clamping plate is provided with a plurality of circumferentially distributed external mounting holes, the second clamping plate is provided with a plurality of circumferentially distributed internal mounting holes and waist-shaped holes, the waist-shaped holes extend along the diameter direction of the second clamping plate, and the waist-shaped holes are closer to the center of the second clamping plate relative to the inner mounting holes.

2. The rapid positioning and clamping tool according to claim 1, characterized in that: The first chucking disc is provided with two first positioning pin holes that are oppositely arranged, and the two first positioning pin holes are respectively located on two radial sides of the first chucking disc.

3. The rapid positioning and clamping tool as claimed in claim 2, characterized in that: The second chucking disc is provided with two second positioning pin holes that are opposite to each other, and the two second positioning pin holes are respectively located on two radial sides of the second chucking disc.

4. The rapid positioning and clamping tool as claimed in claim 3, characterized in that: A key groove is formed on a surface of the first clamping disc away from the second clamping disc. The key groove is located at the outer edge of the first clamping disc and radially passes through the outer edge of the first clamping disc.

5. The rapid positioning and clamping tool as claimed in claim 4, characterized in that: The first positioning pin hole and the second positioning pin hole are located on the same radial line.

6. The rapid positioning and clamping tool according to claim 5, characterized in that: The external mounting holes are evenly spaced and distributed on both sides of the first positioning pin hole, and there are 5 external mounting holes distributed on both sides of the first positioning pin hole.

7. The rapid positioning and clamping tool according to claim 6, characterized in that: The inner mounting holes are evenly spaced and distributed on both sides of the second positioning pin hole, and two inner mounting holes are distributed on both sides of the second positioning pin hole.

8. The rapid positioning and clamping tool according to claim 7, characterized in that: The second clamping plate is provided with four waist-shaped holes at even intervals in the circumferential direction.

9. The rapid positioning and clamping tool according to claim 8, characterized in that: The outer mounting hole and the first positioning pin hole both axially penetrate the first clamping plate, and the inner mounting hole and the second positioning pin hole both axially penetrate the second clamping plate and the first clamping plate.

10. The rapid positioning and clamping tool according to claim 9, characterized in that: The keyway is located radially outside the first positioning pin hole and is radially extended along the diameter of the first positioning pin hole on the first chuck.

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