clamp

Abstract

The invention relates to a clamp having a base arranged to carry an object to be clamped, a vertical clamping mechanism arranged to clamp the object in a vertical direction, a lateral clamping mechanism arranged to clamp the object in a lateral direction, a drive mechanism connected to the vertical clamping mechanism or to the lateral clamping mechanism, wherein the vertical clamping mechanism has a first hydraulic cylinder and a top pressure member for being driven by the first hydraulic cylinder, the lateral clamping mechanism has a second hydraulic cylinder and a lateral pressure member for being driven by the second hydraulic cylinder, and the vertical clamping mechanism is connected to the lateral clamping mechanism for being driven simultaneously in a movement towards or away from the object. The clamp according to the invention is capable of simultaneously operating its vertical clamping mechanism and its lateral clamping mechanism and thereby simplifying its handling.

Description

Technical Field

[0001] This invention relates to a clamp for holding objects. Background Technology

[0002] A car body clamp is known from CN 210359977 U, which has two symmetrical clamping plates and associated electric push rods for clamping onto the car body from both sides. Furthermore, the clamp also has a top plate and associated forward and reverse motors for clamping onto the car body vertically. However, the top plate and the two clamping plates are controlled by motors and electric push rods respectively, thus requiring the simultaneous operation of multiple machines to clamp or release the car body. This process is cumbersome and incurs high maintenance costs. Summary of the Invention

[0003] Depending on the specific aspects, the object of the present invention is to provide a simple-to-operate clamp that can be used to clamp a car body or other objects.

[0004] Furthermore, the present invention aims to solve or alleviate other technical problems existing in the prior art.

[0005] The clamp according to one aspect of the present invention has:

[0006] The base is designed to support the object to be clamped.

[0007] A vertical clamping mechanism configured to clamp the object in the vertical direction;

[0008] A lateral clamping mechanism configured to clamp the object laterally;

[0009] A drive mechanism, which is connected to the vertical clamping mechanism or the lateral clamping mechanism;

[0010] The vertical clamping mechanism has a first hydraulic cylinder and a top pressing member driven by the first hydraulic cylinder, and the lateral clamping mechanism has a second hydraulic cylinder and a side pressing member driven by the second hydraulic cylinder. The vertical clamping mechanism is connected to the lateral clamping mechanism so as to be simultaneously driven to move toward or away from the object.

[0011] According to one aspect of the present invention, the first hydraulic cylinder has a first cylinder body and a first piston assembly, and the second hydraulic cylinder has a second cylinder body and a second piston assembly, wherein the first cylinder body and the second cylinder body are connected by an intermediate channel.

[0012] According to one aspect of the present invention, the first piston assembly and the second piston assembly each include a piston and a piston rod connected thereto, and the output shaft of the drive mechanism of the rotary motor is connected to the piston rod of the first piston assembly or the piston rod of the second piston assembly in a threaded manner.

[0013] According to one aspect of the invention, the drive mechanism of the clamp is configured as a linear drive motor, the output shaft of which is connected to the piston rod of the first piston assembly or the piston rod of the second piston assembly.

[0014] According to one aspect of the invention, in the clamp, the side clamping member of the lateral clamping mechanism is fixed to the piston rod of the second hydraulic cylinder or is constructed as a single piece with the piston rod.

[0015] According to one aspect of the invention, the base has a cavity in which a second hydraulic cylinder of the lateral clamping mechanism is received, and the lateral clamping member protrudes from the cavity to move relative to an object placed on the base.

[0016] According to one aspect of the invention, a clamp is provided with a support fixed at the piston rod of the first piston assembly, and a pressing member is arranged on the support facing the object to be clamped.

[0017] According to one aspect of the invention, the clamp is arranged symmetrically about its central axis, with a vertical clamping mechanism and a lateral clamping mechanism arranged on both sides of the central axis.

[0018] According to one aspect of the invention, the clamp has an anti-slip structure provided on the clamping surfaces of the side clamping member and the top clamping member for pressing against the object.

[0019] According to one aspect of the invention, the anti-slip structure of the clamp is made of an elastic element.

[0020] The fixture according to this disclosure can simultaneously manipulate its vertical clamping mechanism and its lateral clamping mechanism, thereby simplifying its operation. Attached Figure Description

[0021] Referring to the accompanying drawings, the above and other features of the present invention will become apparent, wherein,

[0022] Figure 1 A clamp according to one aspect of the invention is shown in a partially sectional view;

[0023] Figure 2 It shows the direction from the source Figure 1 A schematic diagram of the base of the clamp. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0025] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components.

[0026] refer to Figure 1 This invention illustrates a clamp according to one aspect of the present invention, comprising a base 10 for placing an object to be clamped, a vertical clamping mechanism 20 for clamping the object vertically, a lateral clamping mechanism 30 for clamping the object laterally, and a drive mechanism 40 for driving both clamping mechanisms. The lateral clamping mechanism 30 and the vertical clamping mechanism 20 are constructed in a hydraulically driven manner. Specifically, the vertical clamping mechanism 20 has a first hydraulic cylinder 21 and a pressing member 22 for pressing or abutting against the object; correspondingly, the lateral clamping mechanism 30 has a second hydraulic cylinder 31 and a lateral pressing member 32 for pressing or abutting against the object. Here, the first hydraulic cylinder 21 includes a first cylinder body for filling with hydraulic oil or other liquid and a first piston assembly movable therein, the first piston assembly having a piston and a piston rod fixedly connected thereto. Similarly, the second hydraulic cylinder 31 includes a second cylinder body for filling with hydraulic oil or other liquid and a second piston assembly movable therein, the second piston assembly having a piston and a piston rod fixedly connected thereto.

[0027] The clamp can be arranged symmetrically about a central axis, which can be understood as a vertical axis, or in the sense of a plane, as a vertical plane. The clamp has two lateral clamping mechanisms and a vertical clamping mechanism opposite each other about the central axis. In the embodiment shown in the accompanying drawings, there is only one vertical clamping mechanism and two hydraulic cylinders associated with it, which can also be understood to some extent as two vertical clamping mechanisms. It should be noted that the number and arrangement of the vertical and lateral clamping mechanisms can be set as needed and are not limited to the arrangement shown in the accompanying drawings.

[0028] According to the present invention, to simplify the clamping and disengaging process of the clamp, the lateral clamping mechanism 30 and the vertical clamping mechanism 20 are connected to each other, for example, by mechanical or hydraulic coupling, so that the drive mechanism 40 can simultaneously drive both clamping mechanisms to move in a direction toward or away from the object to be clamped. Here, the drive mechanism 40 can be connected to only one of the two clamping mechanisms. Figure 1 As shown, the drive mechanism 40 can be connected to the piston rod of the lateral clamping mechanism 30, particularly the second hydraulic cylinder 31, while the first cylinder of the vertical clamping mechanism 20 and the second cylinder of the lateral clamping mechanism 30 are connected through an intermediate channel 50, so that liquid can flow in the two cylinders.

[0029] Optionally, the drive mechanism 40 can be configured as a rotary motor, such as a rotary motor capable of forward and reverse rotation, with its output shaft connected to the piston rod of the second piston assembly via a threaded drive. For example, the output shaft of the drive mechanism 40 may have an external thread and the piston rod may have an internal thread, thereby converting the rotational motion of the drive mechanism 40 into linear motion of the second piston assembly (together with the side pressure member 32 connected thereto) and the first piston assembly (together with the top pressure member 22 connected thereto), or vice versa.

[0030] Alternatively, the drive mechanism 40 can be configured as a linear drive motor, such as a bidirectional linear drive mechanism, whose output shaft is also connected to the piston rod of the second piston assembly, thereby enabling its linear motion to be transmitted to the linear motion of the second piston assembly (together with the side pressure member 32 connected thereto) and the first piston assembly (together with the top pressure member 22 connected thereto).

[0031] In the symmetrical arrangement shown in the accompanying drawings, the drive mechanism 40 can be configured as a rotary motor or linear drive motor with dual output shafts. In this way, the drive mechanism 40 can drive the vertical clamping mechanism 20 and the lateral clamping mechanism 30 to move simultaneously toward or away from the object, thereby achieving clamping and release of the object. Additionally, a transmission mechanism can be provided between the drive mechanism and the second piston assembly or the first piston assembly to adjust the transmission ratio therebetween.

[0032] To reduce the necessary structural space of the clamp, the drive mechanism 40 and the lateral clamping mechanism 30 can be arranged in the cavity 11 of the base 10. The side clamping member 32 of the lateral clamping mechanism is fixedly connected to the piston rod of the second piston assembly (e.g., it can be formed in one piece, threaded, or welded), and it protrudes from the base 10 and is driven by the piston rod for movement relative to an object placed on the base.

[0033] Optionally, the pressing member 22 of the vertical clamping mechanism 20 is fixed to the piston rod of the first piston assembly by means of a bracket 23, which can be fixed to the piston rod by a nut. Figure 1 In the embodiment shown, the support 23 is configured to extend over the entire length of the base 10 and is secured to the piston rod at both ends by two nuts. Here, the height of the support 23 and the pressure member 22 on the piston rod can be manually adjusted, thereby adjusting the length of the movement path of the pressure member 22 relative to the object to be clamped and adapting it to objects of different heights.

[0034] Optionally, anti-slip structures 221 and 321 are provided on the clamping surfaces of the top clamping member 22 or the side clamping member 32 for pressing or abutting against the object. These anti-slip structures can be made of elastic elements (e.g., rubber elements) to prevent scratching the surface of the clamped object. Alternatively, the anti-slip structure can be formed as part of the top clamping member or the side clamping member itself; for example, it can be configured as an anti-slip pattern. However, when the clamp is used to clamp a car body, the anti-slip structure can be omitted.

[0035] It should be understood that all the above preferred embodiments are exemplary and not restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present invention should be within the legal protection scope of the present invention.

Claims

1. A fixture, having: The base is designed to support the object to be clamped. A vertical clamping mechanism configured to clamp the object in the vertical direction; A lateral clamping mechanism configured to clamp the object laterally; A drive mechanism, which is connected to the vertical clamping mechanism or the lateral clamping mechanism; Its features are, The vertical clamping mechanism has a first hydraulic cylinder and a pressing member driven by the first hydraulic cylinder; the lateral clamping mechanism has a second hydraulic cylinder and a lateral pressing member driven by the second hydraulic cylinder; the vertical clamping mechanism is connected to the lateral clamping mechanism so as to be simultaneously driven to move toward or away from the object. The first hydraulic cylinder has a first cylinder body and a first piston assembly, and the second hydraulic cylinder has a second cylinder body and a second piston assembly. The first cylinder body and the second cylinder body are connected by an intermediate channel. The first piston assembly and the second piston assembly each include a piston and a piston rod connected thereto. A bracket is fixed at the piston rod of the first piston assembly, and a pressing member is arranged on the bracket facing the object to be clamped. The output shaft of the drive mechanism configured as a rotary motor is connected to the piston rod of the first piston assembly or the piston rod of the second piston assembly via a threaded transmission, or the output shaft of the drive mechanism configured as a linear drive motor is connected to the piston rod of the first piston assembly or the piston rod of the second piston assembly.

2. The clamp according to claim 1, characterized in that, The side clamping mechanism is fixed to the piston rod of the second hydraulic cylinder or is constructed as a single piece with the piston rod.

3. The clamp according to claim 2, characterized in that, The base has a cavity in which a second hydraulic cylinder of the lateral clamping mechanism is housed, and the lateral clamping member protrudes from the cavity to allow movement relative to an object placed on the base.

4. The clamp according to claim 1, characterized in that, The clamps are arranged symmetrically about their central axis, with a vertical clamping mechanism and a lateral clamping mechanism arranged on both sides of the central axis.

5. The clamp according to claim 1, characterized in that, An anti-slip structure is provided on the clamping surfaces of the side pressure member and the top pressure member for pressing against the object.

6. The clamp according to claim 5, characterized in that, The anti-slip structure is made of elastic elements.

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