Floating clamping mechanism

Abstract

The utility model relates to a floating clamping mechanism. Comprising a shell, and the shell is internally provided with a guide assembly which comprises a pull rod and a positioning cover arranged on the pull rod in a sleeving mode; the floating supporting assembly comprises a first floating ball arranged on the pull rod in a sleeving mode, a floating chuck arranged on the first floating ball in a sleeving mode and a transition plate connected with the pull rod in an abutting mode, at least one floating hole is formed in the floating chuck, and a second floating ball is arranged in the floating hole; and one end of the clamping assembly is installed on the transition plate, and the other end of the clamping assembly sequentially penetrates through the transition plate and the second floating ball and is fixed to the second floating ball. The technical problems that in the prior art, a floating clamping mechanism is overweight, the dynamic unbalance amount is large, and the manufacturing cost is high are solved, and the technical effect that a product is locked in a floating mode through a full-mechanical structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile part production, and more specifically, to a floating clamping mechanism. Background Art

[0002] In the current turning process, for large-scale product production, especially for the production of special-shaped products without concentric radial clamping points, the demand for automatic clamping fixtures is increasing. The processing of such products usually requires an asymmetric hinge-type axial clamping method to ensure stability and accuracy during the processing.

[0003] In the prior art, ordinary turning process equipment cannot meet the requirements of automatic fixtures due to the lack of the transmission function of the clamping medium; due to the influence of the spindle bearing and the power transmission structure in the traditional turning process, directly installing the clamping force on the fixture will cause problems such as overweight of the fixture and large dynamic unbalance. At the same time, due to the complexity of the transmission of the clamping power medium, the manufacturing cost of the fixture remains high. Summary of the Utility Model

[0004] By providing a floating clamping mechanism in the embodiments of the present application, the technical problems of overweight, large dynamic unbalance and high manufacturing cost existing in the floating clamping mechanism in the prior art are solved, and the technical effect of realizing the floating locking of the product by a fully mechanical structure is achieved.

[0005] The embodiments of the present application provide a floating clamping mechanism, which is characterized in that it includes a housing, and the housing is provided with: a guiding component, including a pull rod and a positioning cover sleeved on the pull rod; a floating support component, including a first floating ball sleeved on the pull rod, a floating chuck sleeved on the first floating ball, and a transition plate abutted against the pull rod. At least one floating hole is formed in the floating chuck, and a second floating ball is arranged in the floating hole; a clamping component, one end of the clamping component is installed on the transition plate, and the other end of the clamping component sequentially passes through the transition plate and the second floating ball and is fixed on the second floating ball.

[0006] Preferably, three floating holes are provided, and the included angle between two adjacent floating holes is 120 degrees.

[0007] Preferably, the positioning cover includes: a first shaft sleeve sleeved on the pull rod; a second shaft sleeve coaxially arranged with the first shaft sleeve, and the end portions of the first shaft sleeve and the second shaft sleeve close to the first floating ball are connected by a connecting plate.

[0008] Preferably, the pull rod includes: a full-threaded lead screw, one end of the full-threaded lead screw sequentially passes through the first shaft sleeve and the first floating ball, and abuts against the transition disc through a first nut.

[0009] Preferably, the clamping assembly includes: a first clamping rod, one end of the first clamping rod is fixed to the second floating ball by a second nut; a second clamping rod, a through hole coaxial with the second clamping rod is formed in the second clamping rod, one end of the second clamping rod is sleeved on the first clamping rod, and a plurality of sector plates are arranged at intervals at the other end, and the sector plates move along the circumferential direction under the action of the first clamping rod.

[0010] Preferably, both the first nut and the second nut are hexagonal nuts.

[0011] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: By arranging the first floating ball, the floating chuck and the second floating ball, a reaction force is generated when the clamping mechanism contacts the product clamping point, driving the first floating ball and the second floating ball to perform self-adjustment, ensuring that the clamping force is consistent, and finally reaching the locked state. It solves the technical problems of overweight, large dynamic unbalance and high manufacturing cost existing in the floating clamping mechanism in the prior art, and realizes the technical effect of floating locking of products by a fully mechanical structure. Description of the Drawings

[0012] Figure 1 It is a clamping schematic diagram of the floating clamping mechanism provided by the embodiment of the present application;

[0013] Figure 2 It is a structural schematic diagram of the floating clamping mechanism provided by the embodiment of the present application;

[0014] Figure 3 It is a sectional structural schematic diagram of the floating clamping mechanism provided by the embodiment of the present application;

[0015] Figure 4 It is a structural schematic diagram of the floating support assembly of the floating clamping mechanism provided by the embodiment of the present application;

[0016] Figure 5 It is a sectional structural schematic diagram of the guiding assembly of the floating clamping mechanism provided by the embodiment of the present application;

[0017] Figure 6 It is a structural schematic diagram of the clamping assembly of the floating clamping mechanism provided by the embodiment of the present application;

[0018] In the figure, 100, housing; 200, guiding assembly; 210, pull rod; 211, fully threaded lead screw; 212, first nut; 220, positioning cover; 221, first bushing; 222, second bushing; 223, connecting plate; 300, floating support assembly; 310, first floating ball; 320, floating chuck; 330, transition plate; 340, second floating ball; 400, clamping assembly; 410, first clamping rod; 420, second nut; 430, second clamping rod; 431, sector plate. Detailed Embodiments

[0019] By providing a floating clamping mechanism in an embodiment of the present application, the technical problems of overweight, large dynamic unbalance and high manufacturing cost existing in the floating clamping mechanism in the prior art are solved, and the technical effect of realizing the floating locking of products by a fully mechanical structure is achieved.

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] Please refer to Figures 1-6 , the present utility model provides a floating clamping mechanism, which includes a housing 100. Inside the housing 100, there are provided: a guiding assembly 200, including a pull rod 210 and a positioning cover 220 sleeved on the pull rod 210; a floating support assembly 300, including a first floating ball 310 sleeved on the pull rod 210, a floating chuck 320 sleeved on the first floating ball 310, and a transition plate 330 abutted against the pull rod 210. At least one floating hole is formed in the floating chuck 320, and a second floating ball 340 is arranged in the floating hole; a clamping assembly 400, one end of the clamping assembly 400 is installed on the transition plate 330, and the other end of the clamping assembly 400 sequentially passes through the transition plate 330 and the second floating ball 340 and is fixed on the second floating ball 340.

[0023] In this embodiment, the guiding component 200 drives the floating support component 300 and the clamping component under the action of the power source. When the clamping component 400 contacts the product clamping point, according to the reaction force generated by the clamping point, the first floating ball 310 and the second floating ball 340 are driven to make self-adjustment to ensure consistent clamping force and finally reach the locking state. Specifically, the pull rod 210 is threadedly connected to the positioning cover 220. The first floating ball 310 is sleeved on the pull rod 210 and is located between the positioning cover 220 and the transition plate 330. The floating chuck 320 is sleeved on the first floating ball 310. The second floating ball 340 is arranged in the floating hole of the floating chuck 320. The transition plate 330 is provided with a through hole corresponding to the floating hole, so that the clamping component 400 moves linearly along the axial direction of the pull rod 210. One end of the clamping component 400 is installed on the transition plate 330, and the other end passes through the floating hole and is arranged on the second floating ball 340.

[0024] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0025] By providing the first floating ball 310, the floating chuck 320 and the second floating ball 340, when the clamping mechanism contacts the product clamping point, a reaction force is generated to drive the first floating ball 310 and the second floating ball 340 to make self-adjustment, ensuring consistent clamping force and finally reaching the locking state. It solves the technical problems of overweight, large dynamic unbalance and high manufacturing cost existing in the floating clamping mechanism in the prior art, and realizes the technical effect of floating locking of the product by a fully mechanical structure.

[0026] Please refer to Figure 4 , the floating holes are set to three, and the included angle between two adjacent floating holes is 120 degrees.

[0027] In this embodiment, by using the single jacking force at the center of the pull rod 210, the jacking force is evenly distributed to the asymmetric three-point transition plate 330 through the transition plate 330, so that the floating clamping mechanism can achieve adaptive adjustment according to the product deviation, eliminate the deviation existing in the clamping process, and ensure the consistency of the clamping force.

[0028] Please refer to Figure 5 , the positioning cover 220 includes: a first bushing 221, the first bushing 221 is sleeved on the pull rod 210; a second bushing 222, which is coaxially arranged with the first bushing 221, and the end parts of the first bushing 221 and the second bushing 222 close to the first floating ball 310 are connected by a connecting plate 223.

[0029] In this embodiment, the first bushing 221 and the second bushing 222 are coaxially arranged, and one ends of the first bushing 221 and the second bushing 222 close to the first floating ball 310 are connected by a connecting plate 223. The space between the first bushing 221 and the second bushing 222 is used to accommodate the machine tool piston rod, and drives the clamping component 400 to work under the action of the machine tool piston rod.

[0030] Please refer to Figure 5 , the pull rod 210 includes: a full-thread screw rod 211, one end of the full-thread screw rod 211 sequentially passes through the first bushing 221 and the first float ball 310, and abuts against the transition plate through the first nut 212.

[0031] In this embodiment, one end of the full-thread screw rod 211 is threadedly connected to the first nut 212, the other end passes through the first float ball 310 and is arranged inside the first bushing 221, the transition plate abuts against the first nut 212, and moves linearly along the axial direction of the full-thread screw rod 211 under the drive of the first nut 212.

[0032] Please refer to Figure 6 , the clamping assembly 400 includes: a first clamping rod 410, one end of the first clamping rod 410 is fixed on the second float ball 340 through a second nut 420; a second clamping rod 430, a through hole coaxial with it is opened inside the second clamping rod 430, one end of the second clamping rod 430 is sleeved on the first clamping rod 410, and a plurality of sector plates 431 are arranged at intervals at the other end, and the sector plates 431 move along the circumferential direction under the action of the first clamping rod 410.

[0033] In this embodiment, the first clamping rod 410 controls the opening and closing of the sector plates 431 through telescopic movement, so that the second clamping rod 430 has a clamping function.

[0034] In some embodiments, both the first nut 212 and the second nut 420 are hex nuts. Hex nuts have the advantages of high strength, strong corrosion resistance, good fastening effect, and reusable.

[0035] It should be noted that the components between the embodiments of the present disclosure can be interchanged as long as they can play corresponding roles.

[0036] The following points need to be explained:

[0037] (1) Unless otherwise defined, in the embodiments of the present disclosure and the drawings, the same reference numerals represent the same meaning.

[0038] (2) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0039] (3) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the components or regions are enlarged. It can be understood that when an element is referred to as being "on" or "under" another element, the element can be "directly" on or under the other element, or there may be an intermediate element.

[0040] As described above, it is only the specific implementation manner of the present disclosure. However, the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claimed rights.

Claims

1. A floating clamping mechanism, characterized in that: The invention comprises a housing (100), wherein the housing (100) is provided with: A guide assembly (200) comprises a pull rod (210) and a positioning cover (220) sleeved on the pull rod (210); A floating support assembly (300) comprises a first floating ball (310) sleeved on the pull rod (210), a floating chuck (320) sleeved on the first floating ball (310), and a transition plate (330) abutting against the pull rod (210), wherein at least one floating hole is formed on the floating chuck (320), and a second floating ball (340) is disposed in the floating hole; A clamping assembly (400), one end of which is mounted on the transition plate (330), and the other end of which passes through the transition plate (330) and the second float (340) in sequence and is fixed on the second float (340).

2. The floating clamping mechanism according to claim 1, characterized in that: The floating holes are arranged in three numbers, and the angle between two adjacent floating holes is 120 degrees.

3. The floating clamping mechanism according to claim 1 or 2, characterized in that: The positioning cover (220) comprises: A first sleeve (221), wherein the first sleeve (221) is sleeved on the pull rod (210); The second shaft sleeve (222) is coaxially arranged with the first shaft sleeve (221), and the ends of the first shaft sleeve (221) and the second shaft sleeve (222) close to the first floating ball (310) are connected via a connecting plate (223).

4. The floating clamping mechanism according to claim 3, characterized in that: The pull rod (210) comprises: A full-thread screw rod (211), one end of which passes through the first sleeve (221) and the first float ball (310) in sequence, and abuts against the transition plate through a first nut (212).

5. The floating clamping mechanism according to claim 2 or 4, characterized in that: The clamping assembly (400) comprises: A first clamping rod (410), one end of the first clamping rod (410) being fixed to the second floating ball (340) via a second nut (420); A second clamping rod (430), wherein a through hole coaxial with the second clamping rod (430) is provided inside the second clamping rod (430), one end of the second clamping rod (430) is sleeved on the first clamping rod (410), and a plurality of fan-shaped plates (431) are arranged at intervals on the other end, and the fan-shaped plates (431) move in a circumferential direction under the action of the first clamping rod (410).

6. The floating clamping mechanism according to claim 4, characterized in that: The first nut (212) and the second nut (420) are both hexagonal nuts.

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