A clamp structure

Abstract

The utility model relates to the technical field of clamp, disclose a kind of clamp structure, comprising: positioning shaft sleeve, power source, linkage clamping assembly.Positioning shaft sleeve, for hollow sleeve structure, inner wall is equipped with the positioning surface for the circumferential limit of workpiece, positioning shaft sleeve is used to coaxially place workpiece, its axis extends along vertical direction;Power source, it is set to one side of positioning shaft sleeve, its output direction is perpendicular to the axis of positioning shaft sleeve;Linkage clamping assembly, it is set to the output end of power source, linkage clamping assembly is used to push the workpiece in positioning shaft sleeve and is tight;Power source drives linkage clamping assembly to be close to or away from positioning shaft sleeve along the axis direction of positioning shaft sleeve, so that linkage clamping assembly is from the radial of workpiece and is tight or loosens workpiece.By the hollow structure of positioning shaft sleeve and inner wall positioning surface, workpiece coaxial positioning is realized, and cooperate power source drive linkage clamping assembly and move along the axis direction, so that clamping jaw assembly is from the radial of workpiece and is tight or loosens workpiece.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically a clamping structure. Background Technology

[0002] In the field of workpiece clamping, fixtures play a crucial role in ensuring machining or assembly accuracy. However, existing fixtures still have some problems: for example, applying force unilaterally with a single jaw can easily lead to workpiece displacement due to uneven force distribution; furthermore, if the fixture lacks a precise guiding structure, the jaw's movement trajectory is prone to deviation. These problems not only directly affect the machining and assembly accuracy of the workpiece but also reduce production quality and speed.

[0003] Therefore, a fixture structure is urgently needed to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a clamping structure to solve the problem of workpiece easy displacement.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a clamp structure, comprising:

[0006] The positioning bushing is a hollow sleeve structure with a positioning surface on the inner wall for circumferentially limiting the workpiece. The positioning bushing is used to coaxially place the workpiece, and its axis extends in the vertical direction.

[0007] A power source is located on one side of the positioning bushing, and its output direction is perpendicular to the axis of the positioning bushing.

[0008] A linkage clamping assembly is disposed at the output end of the power source, and the linkage clamping assembly is used to push and clamp the workpiece inside the positioning bushing;

[0009] The power source drives the linkage clamping assembly to approach or move away from the positioning bushing along the axial direction of the positioning bushing, so that the linkage clamping assembly grips or releases the workpiece radially.

[0010] As a preferred embodiment of the clamping structure, the linkage clamping assembly includes a drive source, a connecting rod, a connecting rod, a jaw, a frame, and a guide groove. The drive source is installed at the output end of the power source, the connecting rod is installed at the output end of the drive source, the connecting rod, the connecting rod, and the jaw are connected by a hinge shaft, the frame is mounted on the surface of the drive source, the guide groove is formed on the surface of the frame, the jaw passes through the guide groove, and the jaw is connected to the frame by a hinge shaft.

[0011] As a preferred embodiment of the clamping structure, it further includes a guide assembly, which is arranged vertically along the axial direction of the positioning bushing and connected to the bottom of the linkage clamping assembly.

[0012] As a preferred embodiment of the clamping structure, the guide assembly includes a slide rail and a slider. The slide rail is arranged perpendicularly along the axial direction of the positioning bushing. The slider is connected to the bottom of the linkage clamping assembly. The slider is adapted to the slide rail and can slide along the length direction of the slide rail.

[0013] As a preferred embodiment of the fixture structure, the bottom of the positioning bushing is provided with a lifting component, which is used to adjust the height of the positioning bushing to accommodate the workpiece.

[0014] As a preferred embodiment of the clamping structure, the lifting assembly includes a power source and a support block. The power source is installed at the bottom of the positioning bushing, and the support block is installed at the output end of the power source and one end of the positioning bushing.

[0015] As a preferred embodiment of the clamping structure, the linkage clamping assembly is symmetrically arranged on both radial sides of the positioning bushing with the axis of the positioning bushing as the center of symmetry.

[0016] As a preferred embodiment of the clamping structure, it further includes a positioning reference component, which is vertically mounted on the positioning bushing and is used to calibrate the position of the positioning bushing.

[0017] As a preferred embodiment of the fixture structure, the positioning reference assembly includes a calibration rod and a positioning block. The positioning block is disposed at the bottom of the positioning bushing, and the calibration rod is vertically mounted on the top of the positioning block. The calibration rod is used to position the positioning bushing.

[0018] As a preferred embodiment of the clamping structure, the gripper includes at least two clamping rods, which are symmetrically arranged on the connecting rod, and the two clamping rods are X-shaped.

[0019] The beneficial effects of this utility model are as follows: by using the hollow structure of the positioning bushing and the inner wall positioning surface, the workpiece is coaxially positioned, and with the power source driving the linkage clamping assembly to move along the axial direction, the gripper assembly can grip or release the workpiece radially, thereby improving the workpiece clamping stability and positioning accuracy. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a clamping structure in the first direction provided by this utility model;

[0021] Figure 2This is a schematic diagram of the overall structure of a clamping structure in the second direction provided by this utility model;

[0022] Figure 3 This utility model provides a schematic diagram of the overall structure of a clamp in the third direction.

[0023] Figure 4 This is a schematic diagram of the overall structure of a clamping structure provided by this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 1. Positioning bushing;

[0026] 2. Power source;

[0027] 3. Linkage clamping assembly;

[0028] 301. Drive source; 302. Connecting rod; 303. Linkage rod; 304. Gripper; 305. Frame; 306. Guide groove; 307. Hinge shaft;

[0029] 4. Guiding components;

[0030] 401. Slide rail; 402. Slider;

[0031] 5. Lifting assembly;

[0032] 501, Source of Vitality; 502, Support Block;

[0033] 6. Positioning reference components;

[0034] 601. Calibration rod; 602. Positioning block. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0040] In one embodiment of this utility model, such as Figure 1-4 As shown, a clamping structure is provided, including: a positioning sleeve 1, a power source 2, and a linkage clamping assembly 3. The positioning sleeve 1 is a hollow sleeve-shaped structure with a positioning surface on its inner wall for circumferentially limiting the workpiece. The positioning sleeve 1 is used to coaxially place the workpiece, and its axis extends in the vertical direction. The power source 2 is located on one side of the positioning sleeve 1, and its output direction is perpendicular to the axis of the positioning sleeve 1. The linkage clamping assembly 3 is located at the output end of the power source 2 and is used to push the workpiece inside the positioning sleeve 1. The power source 2 drives the linkage clamping assembly 3 to move closer to or away from the positioning sleeve 1 along the axial direction of the positioning sleeve 1, so that the linkage clamping assembly 3 grips or releases the workpiece radially.

[0041] The clamping structure provided by this utility model achieves coaxial positioning of the workpiece through the hollow structure of the positioning bushing 1 and the inner wall positioning surface. In conjunction with the power source 2, it drives the linkage clamping assembly 3 to move along the axial direction, so that the gripper 304 assembly grips or releases the workpiece radially, thereby improving the workpiece clamping stability and positioning accuracy.

[0042] In this embodiment, the linkage clamping assembly 3 includes a drive source 301, a connecting rod 302, a connecting rod 303, a gripper 304, a frame 305, and a guide groove 306. The drive source 301 is mounted on the output end of the power source 2, and the connecting rod 302 is mounted on the output end of the drive source 301. The connecting rod 302, the connecting rod 303, and the gripper 304 are connected by a hinge shaft 307, and the frame 305 is mounted on the surface of the drive source 301. The guide groove 306 is formed on the surface of the frame 305, and the gripper 304 passes through the guide groove 306. The gripper 304 and the frame 305 are connected by the hinge shaft 307. Through the hinge linkage of the drive source 301, the connecting rod 302, the connecting rod 303, and the gripper 304, combined with the limiting effect of the guide groove 306 in the frame 305, the gripper 304 moves precisely along the guide trajectory, achieving stable and controllable clamping action.

[0043] The combined use of drive source 301 and power source 2 forms a two-level power transmission structure through their hierarchical cooperation. This makes the power output more precise and controllable, and the clamping force can be adjusted in multiple levels. This improves the adaptability of the fixture to workpieces of different materials and sizes, reduces workpiece damage caused by power overload, and enhances operational safety and clamping stability.

[0044] The clamping structure includes at least two clamping rods in the gripper 304, which are symmetrically arranged on the connecting rod 303 and form an X-shape. The gripper 304, with its at least two symmetrically arranged X-shaped clamping rods on the connecting rod 303, improves the uniformity of radial clamping of the workpiece, avoids workpiece displacement or damage caused by unilateral force, and enhances clamping stability and reliability.

[0045] The fixture structure also includes a guide assembly 4, which is arranged vertically along the axis of the positioning sleeve 1 and connected to the bottom of the linkage clamping assembly 3. By arranging the guide assembly 4 vertically along the axis of the positioning sleeve 1 and connecting it to the bottom of the linkage clamping assembly 3, the movement trajectory of the gripper 304 assembly is precisely constrained, avoiding deviation and thus ensuring the coaxiality of the clamping action with the positioning sleeve 1.

[0046] Specifically, the guide assembly 4 includes a slide rail 401 and a slider 402. The slide rail 401 is vertically arranged along the axis of the positioning sleeve 1, and the slider 402 is connected to the bottom of the linkage clamping assembly 3. The slider 402 is adapted to the slide rail 401, and the slider 402 can slide along the length of the slide rail 401. Through the adapted sliding of the slide rail 401 and the slider 402, the linkage clamping assembly 3 is constrained in the direction perpendicular to the axis of the positioning sleeve 1, so that the movement trajectory of the gripper 304 is accurate and without deviation, thereby improving the clamping alignment accuracy, enhancing the stability of the mechanism operation, and reducing the risk of workpiece damage.

[0047] Preferably, the bottom of the positioning bushing 1 is provided with a lifting component 5, which is used to adjust the height of the positioning bushing 1 to accommodate the workpiece. Through the lifting component 5 at the bottom of the positioning bushing 1, the height of the bushing can be adjusted as needed to meet the positioning requirements of workpieces of different lengths, thereby expanding the applicability of the fixture and ensuring the alignment accuracy when clamping different workpieces.

[0048] Specifically, the lifting assembly 5 includes a power source 501 and a support block 502. The power source 501 is installed at the bottom of the positioning sleeve 1, and the support block 502 is installed at the output end of the power source 501 and one end of the positioning sleeve 1. Through the cooperation between the power source 501 at the bottom of the positioning sleeve 1 and the support block 502, the height of the sleeve can be flexibly adjusted by the power source 501 to adapt to the positioning of workpieces of different lengths. This allows for the adaptation of workpieces of various specifications without changing the fixture, improving operational convenience and enhancing the versatility of the fixture.

[0049] Preferably, the linkage clamping assembly 3 is symmetrically arranged on both radial sides of the positioning bushing 1 with the axis of the positioning bushing 1 as the center of symmetry, so that the grippers 304 apply symmetrical clamping forces from both sides of the workpiece, avoiding offset or deformation caused by unilateral force, thereby improving clamping stability and coaxiality, ensuring the workpiece processing or assembly accuracy, and improving the reliability of the fixture.

[0050] The fixture structure also includes a positioning reference component 6, which is vertically mounted on the positioning sleeve 1 and is used to calibrate the position of the positioning sleeve 1.

[0051] Specifically, the positioning reference assembly 6 includes a calibration rod 601 and a positioning block 602. The positioning block 602 is located at the bottom of the positioning sleeve 1, and the calibration rod 601 is vertically mounted on the top of the positioning block 602. The calibration rod 601 is used to position the positioning sleeve 1.

[0052] By cooperating with the vertical calibration rod 601, the positioning block 602 at the bottom of the positioning bushing 1 can be accurately calibrated, avoiding installation offset, thereby ensuring the alignment accuracy of the bushing and the gripper 304 assembly and improving the workpiece clamping and positioning accuracy.

[0053] The clamping process of the fixture structure provided by this utility model is as follows: the workpiece is placed coaxially into the positioning bushing 1, and circumferential positioning is achieved through the positioning surface of the inner wall; the power source 2 is started, driving the linkage clamping assembly 3 to approach along the axial direction of the positioning bushing 1; the drive source 301 drives the X-shaped clamping rod to move along the guide groove 306 of the frame 305 through the hinge linkage of the connecting rod 302 and the connecting rod 303; the gripper 304 symmetrically clamps the workpiece from both radial sides with the axis of the positioning bushing 1 as the center, and at the same time, the slide rail 401 and the slider 402 of the guide assembly 4 constrain the movement trajectory, and with the bushing position calibrated by the positioning reference assembly 6, the workpiece is stably clamped.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A clamp structure, characterized in that, include: The positioning bushing is a hollow sleeve structure with a positioning surface on the inner wall for circumferentially limiting the workpiece. The positioning bushing is used to coaxially place the workpiece, and its axis extends in the vertical direction. A power source is located on one side of the positioning bushing, and its output direction is perpendicular to the axis of the positioning bushing. A linkage clamping assembly is disposed at the output end of the power source, and the linkage clamping assembly is used to push and clamp the workpiece inside the positioning bushing; The power source drives the linkage clamping assembly to approach or move away from the positioning bushing along the axial direction of the positioning bushing, so that the linkage clamping assembly grips or releases the workpiece radially.

2. The clamp structure according to claim 1, characterized in that, The linkage clamping assembly includes a drive source, a connecting rod, a connecting rod, a gripper, a frame, and a guide groove. The drive source is installed at the output end of the power source, the connecting rod is installed at the output end of the drive source, the connecting rod, the connecting rod, and the gripper are connected by a hinge shaft, the frame is mounted on the surface of the drive source, the guide groove is formed on the surface of the frame, the gripper passes through the guide groove, and the gripper is connected to the frame by a hinge shaft.

3. A clamp structure according to claim 1 or 2, characterized in that, It also includes a guide assembly, which is arranged vertically along the axial direction of the positioning bushing and connected to the bottom of the linkage clamping assembly.

4. A clamp structure according to claim 3, characterized in that, The guide assembly includes a slide rail and a slider. The slide rail is arranged perpendicularly along the axial direction of the positioning bushing. The slider is connected to the bottom of the linkage clamping assembly. The slider is adapted to the slide rail and can slide along the length direction of the slide rail.

5. A clamp structure according to claim 1, 2, or 4, characterized in that, The bottom of the positioning bushing is provided with a lifting component, which is used to adjust the height of the positioning bushing to accommodate the workpiece.

6. A clamp structure according to claim 5, characterized in that, The lifting assembly includes a power source and a support block. The power source is installed at the bottom of the positioning bushing, and the support block is installed at the output end of the power source and one end of the positioning bushing.

7. A clamp structure according to claim 1, 2, or 4, characterized in that, The linkage clamping assembly is symmetrically arranged on both radial sides of the positioning bushing with the axis of the positioning bushing as the center of symmetry.

8. A clamp structure according to claim 1, 2, 4, or 6, characterized in that, It also includes a positioning reference component, which is vertically mounted on the positioning bushing and is used to calibrate the position of the positioning bushing.

9. A clamp structure according to claim 8, characterized in that, The positioning reference assembly includes a calibration rod and a positioning block. The positioning block is disposed at the bottom of the positioning bushing, and the calibration rod is vertically installed at the top of the positioning block. The calibration rod is used to position the positioning bushing.

10. A clamp structure according to claim 2, characterized in that, The gripper includes at least two gripping rods, which are symmetrically arranged on the connecting rod, and the two gripping rods are X-shaped.

Images