Auxiliary supporting device

Abstract

The utility model discloses an auxiliary supporting device, and relates to the technical field of machining. The device comprises a first vacuum chuck, a second vacuum chuck, a push rod, a locking nut, a sleeve, a pressure spring and a blanking cap. The device is transversely placed in a thin-wall cavity of a workpiece, under the action of the compression springs, the two ends of the device can be rapidly attached to the two side walls of the workpiece, air in the vacuum suction cup is exhausted, the device is reliably adsorbed to the surface of the workpiece under the action of atmospheric pressure, and the locking device is locked by rotating the locking nut. The device can be applied to supporting at different distances, is convenient to use, and does not cause workpiece deformation.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to an auxiliary supporting device. Background Art

[0002] When machining thin-walled parts, due to the poor rigidity of the workpiece, the tool vibrates severely during machining, and there are serious tool vibration marks on the machined surface of the workpiece. In order to improve the cutting conditions, it is necessary to improve the machining rigidity of such parts. Generally, the rigidity is increased by adding auxiliary supports. There are two common auxiliary supports. One is to use a threaded sleeve and a screw. By adjusting the length of the screwed thread, the two ends of the device support the side walls of the workpiece respectively. In order to ensure the stability and reliability of the support, the device will apply a large initial thrust to the workpiece, which can easily cause deformation of the workpiece. The other is to cut a rod of equivalent length according to the width of the area to be supported, and apply a proper amount of glue on both ends of the rod to bond it to the workpiece. This method requires special supports, and it is troublesome to remove the supports and clean the glue residue on the surface of the workpiece. Utility Model Content

[0003] The utility model aims to provide an auxiliary supporting device suitable for improving the rigidity of thin-walled parts.

[0004] In view of this, according to one aspect of an embodiment of the utility model, an auxiliary support device is provided, including: a first vacuum suction cup 11, a second vacuum suction cup 12, a push rod 2, a locking nut 3, a sleeve 4, a compression spring 5 and a plugging cover 6, one end of the push rod 2 is a step shaft, the sleeve 4 is a tubular structure, one end of the larger diameter cylindrical surface of the push rod 2 is sleeved with the inner tube of the sleeve 4, and moves axially in the inner tube, one end of the smaller diameter cylindrical surface of the push rod 2 extends out of the sleeve 4, and is provided with a first vacuum suction cup 11, and a compression spring 5 is installed at one end of the push rod 2 in the inner tube; one end of the compression spring 5 is connected to the push rod 2, and the other end is connected to the plugging cover 6, the plugging cover 6 is threadedly connected to the sleeve 4, the compression spring 5 is kept in a compressed state, and the other end of the plugging cover 6 is installed with the second vacuum suction cup 12;

[0005] A hole is opened on the other end face of the sleeve 4, and the hole diameter is smaller than the larger diameter cylindrical surface of the push rod 2 and larger than the smaller diameter cylindrical surface of the push rod 2, which is used to limit the axial displacement of the push rod 2. A plurality of radial grooves are arranged along the circumference of the end face, and the locking nut 3 is sleeved on the outer circle of the end face of the sleeve 4 and connected through threads. By squeezing the outer circle of the sleeve 4 and compressing the hole on the end face of the sleeve 4, the relative position of the push rod 2 and the sleeve 4 is fixed.

[0006] Optionally, the interior of the locking nut 3 is composed of a conical surface and a thread, the specification of the thread is consistent with the external thread of the sleeve 4, and the two cooperate with each other, and the angle of the conical surface is consistent with the external conical surface of the sleeve 4.

[0007] Optionally, the sleeve 4 is also filled with lubricant.

[0008] Optionally, the first vacuum suction cup 11 and the second vacuum suction cup 12 are made of rubber.

[0009] Optionally, the materials of the push rod 2 , the locking nut 3 and the sleeve 4 are steel.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] The device is placed horizontally in the thin-wall cavity of the workpiece. Under the action of the compression spring, the two ends of the device will quickly stick to the two side walls of the workpiece, the air in the vacuum suction cup is discharged, and it is reliably adsorbed on the surface of the workpiece under the action of atmospheric pressure. The locking nut can be rotated to lock the device. The device has good versatility and can be used for supports at different distances. It is easy to use and will not cause deformation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a cross-sectional view of a structural schematic diagram of an auxiliary support device according to the utility model;

[0013] Figure 2 This is a schematic diagram of a use state of an auxiliary support device according to the utility model;

[0014] Figure 3 It is a structural schematic diagram of a sleeve of an auxiliary supporting device according to the utility model;

[0015] Figure 4 It is a schematic cross-sectional view of the structure of a locking nut of an auxiliary support device according to the utility model;

[0016] Description of reference numerals:

[0017] 11-first vacuum suction cup, 12-second vacuum suction cup, 2-push rod, 3-locking nut, 4-sleeve, 5-compression spring, 6-blocking cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] An auxiliary support device is provided, comprising: a first vacuum suction cup 11, a second vacuum suction cup 12, a push rod 2, a locking nut 3, a sleeve 4, a compression spring 5 and a plugging cover 6, one end of the push rod 2 is a stepped shaft, the sleeve 4 is a tubular structure, one end of the larger diameter cylindrical surface of the push rod 2 is sleeved with the inner tube of the sleeve 4, and moves axially in the inner tube, one end of the smaller diameter cylindrical surface of the push rod 2 extends out of the sleeve 4, and is provided with a first vacuum suction cup 11, and a compression spring 5 is installed at one end of the push rod 2 in the inner tube; one end of the compression spring 5 is connected to the push rod 2, and the other end is connected to the plugging cover 6, the plugging cover 6 is threadedly connected to the sleeve 4, the compression spring 5 is kept in a compressed state, and the other end of the plugging cover 6 is installed with the second vacuum suction cup 12;

[0020] A hole is opened on the other end face of the sleeve 4, and the hole diameter is smaller than the larger diameter cylindrical surface of the push rod 2 and larger than the smaller diameter cylindrical surface of the push rod 2, which is used to limit the axial displacement of the push rod 2. A plurality of radial grooves are arranged along the circumference of the end face, and the locking nut 3 is sleeved on the outer circle of the end face of the sleeve 4 and connected through threads. By squeezing the outer circle of the sleeve 4 and compressing the hole on the end face of the sleeve 4, the relative position of the push rod 2 and the sleeve 4 is fixed.

[0021] Furthermore, the interior of the locking nut 3 is composed of a conical surface and a thread, the specification of the thread is consistent with the external thread of the sleeve 4, and the two cooperate with each other, and the angle of the conical surface is consistent with the external conical surface of the sleeve 4.

[0022] Furthermore, the sleeve 4 is filled with lubricant to reduce the friction between the inner wall of the sleeve 4 and the push rod 2, so as to facilitate operation.

[0023] Furthermore, the first vacuum suction cup 11 and the second vacuum suction cup 12 are made of rubber.

[0024] Furthermore, the materials of the push rod 2, the locking nut 3 and the sleeve 4 are steel.

[0025] Example

[0026] like Figure 1 As shown, an auxiliary support device suitable for improving the rigidity of thin-walled parts includes a first vacuum suction cup 11, a second vacuum suction cup 12, a push rod 2, a locking nut 3, a sleeve 4, a compression spring 5 and a plug cover 6.

[0027] The push rod 2 is a stepped shaft. The larger diameter cylindrical surface of the push rod 2 cooperates with the inner tube of the sleeve 4, and the two can realize axial sliding. The small diameter cylindrical part of the push rod 2 extends out of the sleeve 4, and an interface for installing the first vacuum suction cup 11 is reserved on the small diameter end surface, which is used to install the first vacuum suction cup 11. The other end surface of the push rod 2 has an interface for installing the compression spring 5;

[0028] The sleeve 4 is as Figure 3As shown, the diameter of the inner cylinder is equivalent to the large diameter cylinder of the push rod 2, and the two slide together. The initial diameter of the deformable hole on the end face of the sleeve 4 is equivalent to the small diameter cylinder of the push rod 2. In the initial state, the two slide together. When the conical surface of the sleeve 4 is squeezed, the end hole is squeezed and contracted, so that the push rod 2 is fixedly connected to the sleeve 4. The other end face of the sleeve 4 is threaded, and the thread diameter should be larger than the cylinder diameter.

[0029] The plugging cover 6 is fixedly connected to the compression spring 5 at one end and has an external thread feature, and the thread specification is consistent with the thread of the end surface of the sleeve 4. When in use, the plugging cover 6 is screwed onto the sleeve 4, and the other end surface of the plugging cover has an interface connected to the second vacuum suction cup 12 for installing the second vacuum suction cup 12;

[0030] The locking nut 3 is as follows Figure 4 As shown, the interior is composed of a cone and a thread, the specification of the thread is consistent with the external thread of the sleeve 4, the two are matched, and the angle of the cone surface is consistent with the cone surface of the sleeve 4;

[0031] The method of using the utility model is as follows:

[0032] The first step is to use two fingers to press the vacuum suction cups at both ends of the device at the same time to shorten the device as a whole until the device can be placed in the part to be supported;

[0033] The second step is to release your fingers, the device will extend, and the vacuum suction cups at both ends will respectively stick to the two opposite side walls of the workpiece, and further squeeze the vacuum suction cups to ensure that the air inside the vacuum suction cups has been discharged and the vacuum suction cups have been adsorbed on the surface of the workpiece;

[0034] The third step is to rotate the locking nut so that the device cannot be extended or compressed.

[0035] Through the above three steps, auxiliary support of the workpiece can be achieved conveniently and quickly.

[0036] The above is only a specific embodiment of the utility model, and the utility model is described in detail. The undetailed part is conventional technology. However, the protection scope of the utility model is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. The protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An auxiliary support device, characterized in that: include: A first vacuum suction cup (11), a second vacuum suction cup (12), a push rod (2), a locking nut (3), a sleeve (4), a compression spring (5) and a plugging cover (6); one end of the push rod (2) is a stepped shaft; the sleeve (4) is a tubular structure; one end of the larger diameter cylindrical surface of the push rod (2) is sleeved with the inner tube of the sleeve (4) and moves axially in the inner tube; one end of the smaller diameter cylindrical surface of the push rod (2) extends out of the sleeve (4) and is provided with a first vacuum suction cup (11); a compression spring (5) is installed at one end of the push rod (2) in the inner tube; one end of the compression spring (5) is connected to the push rod (2) and the other end is connected to the plugging cover (6); the plugging cover (6) is threadedly connected to the sleeve (4); the compression spring (5) is kept in a compressed state; the other end of the plugging cover (6) is installed with a second vacuum suction cup (12); A hole is opened on the other end face of the sleeve (4), the diameter of which is smaller than the larger diameter cylindrical surface of the push rod (2) and larger than the smaller diameter cylindrical surface of the push rod (2), and is used to limit the axial displacement of the push rod (2). A plurality of radial grooves are arranged along the circumference of the end face, and a locking nut (3) is sleeved on the outer circle of the end face of the sleeve (4) and connected by threads. By squeezing the outer circle of the sleeve (4) and compressing the hole on the end face of the sleeve (4), the relative position of the push rod (2) and the sleeve (4) is fixed.

2. The device according to claim 1, characterized in that The interior of the locking nut (3) is composed of a conical surface and a thread, the specification of the thread is consistent with the external thread of the sleeve (4), the two are matched, and the angle of the conical surface is consistent with the external conical surface of the sleeve (4).

3. The device according to claim 1, characterized in that The sleeve (4) is also filled with lubricant.

4. The device according to claim 1, characterized in that The first vacuum suction cup (11) and the second vacuum suction cup (12) are made of rubber.

5. The device according to claim 1, characterized in that The push rod (2), the locking nut (3) and the sleeve (4) are made of steel.

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