Horizontal and vertical universal quick-change clamp

Abstract

The utility model discloses a universal quick-change clamp for horizontal and vertical machining, and belongs to the technical field of quick-change clamps. The welding bottom plate is installed on the base, vertical and horizontal replacement of parts can be achieved, the requirements of different directions are met, the structure is simple, and installation is convenient; the pull rod penetrates through the clamp body to be installed on the base, the expansion sleeve and the supporting gasket are installed at the other end of the clamp body, the expansion sleeve can be compressed under the action of the pull rod so that the inner hole of the clamp body can be tensioned, and the auxiliary effect on later accurate positioning is achieved; under the condition that the requirement for the position precision of the positioning pin in the clamp body is extremely high, centering is ensured under the action of the supporting gasket, the situation that the expansion sleeve is inconvenient to guide out during disassembly due to the fact that the pressure of the expansion sleeve is too large is avoided, and quick replacement of parts is achieved. Therefore, the quick-change clamp provided by the utility model can be conveniently disassembled when a part above the pull rod needs to be replaced, is high in positioning accuracy and meets the requirements of different directions of the part.

Description

Technical Field

[0001] The utility model belongs to the technical field of quick-change clamps and relates to a quick-change clamp universal for horizontal and vertical clamps. Background Art

[0002] Existing clutch support parts, such as Figure 1 As shown in the figure, radial inclined holes or straight holes need to be processed. Figure 2 The combined fixture structure shown is a traditional positioning method, with a pressure plate pressing the parts and a positioning pin fixing the tooth groove. This positioning method is not only complex to clamp, but also requires extremely high position accuracy of the positioning pin in the fixture to ensure centering. Each part of different specifications can only use a dedicated combined fixture. And it can only be used in a five-axis machining center, occupying the capacity of a dedicated machine tool for a long time.

[0003] Therefore, it is impossible to achieve accurate positioning using ordinary fixtures, and it is often necessary to use many auxiliary tools or use multiple angles in combination, which results in a complex structure, high processing costs, and greatly reduces the clamping speed. Summary of the invention

[0004] The utility model aims to solve the problems of low positioning accuracy and complex structure of the fixture in the prior art and to provide a quick-change fixture which is universal for horizontal and vertical applications.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a quick-change clamp universal for horizontal and vertical applications, comprising a pull rod and a clamp body mounted on a bottom plate; a welding bottom plate is mounted on the other side of the bottom plate;

[0007] An expansion sleeve is sleeved on the other end of the clamp body, the pull rod passes through the center of the clamp body and is installed on the bottom plate, and a supporting washer for limiting the displacement of the expansion sleeve is sleeved on the clamp body.

[0008] Preferably, a spacer is provided on the upper end surface of the clamp body.

[0009] Preferably, waist-shaped grooves and threaded holes are provided on the bottom plate.

[0010] Preferably, a parts pressing device is installed on the bottom plate.

[0011] Preferably, the parts clamping device comprises a pressing plate, a stud and a telescopic column;

[0012] The stud and the telescopic column are both vertically mounted on the base plate, the pressure plate is mounted parallel to the base plate on the other end of the telescopic column, a through hole is provided on the other side of the pressure plate, the other end of the stud passes through the through hole and is mounted with a nut.

[0013] Preferably, a compression spring is sleeved on the stud.

[0014] Preferably, nuts are installed on the ends of the stud and the telescopic column close to the base plate.

[0015] Preferably, the four sides of the clamp body are connected to the bottom plate by first screws;

[0016] The center position of the clamp body is connected to the bottom plate via a second screw.

[0017] Preferably, a threaded sleeve is sleeved on the second screw.

[0018] Preferably, the base plate and the welding base plate are connected via positioning keys and bolts.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model proposes a quick-change clamp that is universal for both horizontal and horizontal positions. By installing a welding base plate on the base, the parts can be replaced vertically and horizontally, that is, they can meet the requirements of different positions, and the structure is simple and easy to install. The pull rod is passed through the clamp body and installed on the base, and the expansion sleeve and the support washer are installed on the other end of the clamp body. Under the action of the pull rod, the expansion sleeve can be compressed to tighten the inner hole of the clamp body, which plays an auxiliary role in the subsequent precise positioning. In the case of extremely high requirements for the position accuracy of the locating pin in the clamp body, the centering is ensured under the action of the support washer, and the expansion sleeve will not be inconvenient to guide out during disassembly due to excessive pressure, thereby realizing quick replacement of parts. Therefore, the quick-change clamp proposed by the utility model can be easily disassembled when the parts above the pull rod need to be replaced, and has high positioning accuracy and meets the requirements of different positions of parts.

[0021] Furthermore, a spacer is provided on the upper end surface of the clamp body in order to adjust the size of the expansion sleeve and protect the expansion sleeve from being damaged under strong pressure.

[0022] Furthermore, a waist-shaped groove is provided on the bottom plate so as to install a tooth alignment gauge to adapt to the tooth alignment of workpieces of different specifications.

[0023] Furthermore, a parts clamping device is installed on the bottom plate to clamp the parts above the pull rod.

[0024] Furthermore, the threaded sleeve is provided on the second screw to protect the threaded surface of the second screw from mechanical damage, thereby improving the sealing performance of the threaded connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The utility model relates to a clutch support part of the prior art.

[0027] Figure 2 The invention is a combined clamp structure of the prior art.

[0028] Figure 3 This is a structural diagram of a quick-change clamp universal for horizontal and vertical machining of the utility model.

[0029] Among them: 1-positioning key, 2-threaded sleeve, 3-second screw, 4-welded base plate, 5-base plate, 6-clamp body, 7-pull rod, 8-expansion sleeve, 9-support washer, 10-pressure plate, 11-stud stud, 12-compression spring, 13-telescopic column, 14-nut, 15-third screw, 16-first screw. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The utility model is further described in detail below with reference to the accompanying drawings:

[0037] The utility model provides a quick-change clamp universal for horizontal and vertical processing, such as Figure 3 As shown, it includes a pull rod 7 and a clamp body 6 installed on a base plate 5; a welding base plate 4 is installed on the other side of the base plate 5, which can realize vertical and horizontal replacement of parts, that is, meet the needs of different orientations, and has a simple structure and is easy to install.

[0038] An expansion sleeve 8 is sleeved on the other end of the clamp body 6, and a pull rod 7 passes through the center of the clamp body 6 and is installed on the bottom plate 5. A support washer 9 is sleeved on the clamp body 6 for limiting the displacement of the expansion sleeve 8. Under the action of the pull rod 7, the expansion sleeve 8 can be compressed to tighten the inner hole of the clamp body 6, which plays an auxiliary role in the subsequent precise positioning. In the case of extremely high requirements for the position accuracy of the locating pin in the clamp body, the centering is ensured under the action of the support washer 9, and the expansion sleeve 8 will not be inconvenient to guide out during disassembly due to excessive pressure, thereby realizing quick replacement of parts. Therefore, the quick-change clamp proposed in the utility model can install various required parts above the pull rod, and has a low manufacturing cost compared to the existing non-universal clamps, and is simple to load and unload, has high positioning accuracy, and meets the requirements of different orientations of parts.

[0039] The bottom plate 5 is connected to the welding bottom plate 4 by means of a positioning key 1 and a bolt; a third screw 15 is provided on the welding bottom plate 4 to facilitate fixing the welding bottom plate 4; the four sides of the clamp body 6 are connected to the bottom plate 5 by means of a first screw 16; the center of the clamp body 6 is connected to the bottom plate 5 by means of a second screw 3. A threaded sleeve 2 is provided on the second screw 3 to protect the threaded surface of the second screw 3 from mechanical damage and to improve the sealing performance of the threaded connection.

[0040] Preferably, a spacer is provided on the upper end surface of the clamp body 6 in order to adjust the size of the expansion sleeve 8 and protect the expansion sleeve 8 from being damaged under strong pressure.

[0041] The bottom plate 5 is provided with waist grooves with multiple angles so as to install the tooth alignment gauge to adapt to the tooth alignment of workpieces of different specifications. The bottom plate 5 is provided with multiple circular threaded holes with different distributions so as to conveniently connect the fixture bodies 6 of different specifications.

[0042] A parts clamping device is installed on the bottom plate 5, and the clamping device includes a clamping plate 10, a stud 11 and a telescopic column 13; the stud 11 and the telescopic column 13 are both vertically installed on the bottom plate 5, and the clamping plate 10 is installed parallel to the bottom plate 5 at the other end of the telescopic column 13. A through hole is opened on the other side of the clamping plate 10, and the other end of the stud 11 passes through the through hole and is installed with a nut. A compression spring 12 is sleeved on the stud 11 to play a buffering role. Nuts 14 are installed on the ends of the stud 11 and the telescopic column 13 close to the bottom plate 5.

[0043] The working process of the quick-change clamp proposed by the utility model is as follows:

[0044] When using vertical, horizontal or five-axis linkage equipment, fix the base plate 5 to the welding base plate 4 or remove the welding base plate 4, fix the fixture body 6 to the base plate 5, and position the support washer 9 on the support surface of the fixture body 6. The pull rod 7 tightens the expansion sleeve 8 to tighten the inner hole of the part, and the pressure plate 10 presses the part. The tooth gauge is installed in the waist-shaped groove on the base plate 5 for tooth alignment. The fixture has strong versatility, simple clamping, and high centering accuracy of the expansion sleeve. For parts of different specifications, only the corresponding expansion sleeve and support washer need to be replaced without redesign; it can be used for both horizontal and vertical machining, and can be processed in different processes, without occupying too much production capacity of special equipment for five-axis machining centers.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-change clamp for both horizontal and vertical applications, characterized in that: It comprises a pull rod (7) and a clamp body (6) mounted on a base plate (5); a welding base plate (4) is mounted on the other side of the base plate (5); An expansion sleeve (8) is sleeved on the other end of the clamp body (6), the pull rod (7) passes through the center of the clamp body (6) and is installed on the bottom plate (5), and a support washer (9) for limiting the displacement of the expansion sleeve (8) is sleeved on the clamp body (6).

2. The quick-change clamp for horizontal and vertical machining according to claim 1 is characterized in that: A spacer is provided on the upper end surface of the clamp body (6).

3. The quick-change clamp for horizontal and vertical machining according to claim 1 is characterized in that: The bottom plate (5) is provided with waist-shaped grooves and threaded holes.

4. The quick-change clamp for horizontal and vertical machining according to claim 1 is characterized in that: A parts pressing device is installed on the base plate (5).

5. The quick-change clamp for horizontal and vertical machining according to claim 4 is characterized in that: The parts pressing device comprises a pressing plate (10), a stud bolt (11) and a telescopic column (13); The stud bolt (11) and the telescopic column (13) are both vertically mounted on the base plate (5); the pressure plate (10) is mounted on the other end of the telescopic column (13) parallel to the base plate (5); a through hole is provided on the other side of the pressure plate (10); the other end of the stud bolt (11) passes through the through hole and is mounted with a nut.

6. The quick-change clamp for horizontal and vertical machining according to claim 5 is characterized in that: A compression spring (12) is sleeved on the stud bolt (11).

7. The quick-change clamp for horizontal and vertical machining according to claim 5 is characterized in that: Nuts (14) are installed on the ends of the stud bolt (11) and the telescopic column (13) close to the bottom plate (5).

8. The quick-change clamp for horizontal and vertical machining according to claim 1 is characterized in that: The four sides of the clamp body (6) are connected to the bottom plate (5) via first screws (16); The center position of the clamp body (6) is connected to the bottom plate (5) via a second screw (3).

9. The quick-change clamp for horizontal and vertical machining according to claim 8 is characterized in that: A threaded sleeve (2) is sleeved on the second screw (3).

10. The quick-change clamp for horizontal and vertical machining according to claim 1, characterized in that: The base plate (5) and the welding base plate (4) are connected via positioning keys (1) and bolts.

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