Cover plate holder

Abstract

A clamping cylinder of the cover plate clamping device is installed at one end of a sleeve in a coaxial mode, a plurality of containing grooves are formed in the circumferential side wall of the clamping cylinder, the inner wall and the outer wall of the clamping cylinder are communicated through the containing grooves, and a ball is movably connected into each containing groove. The other end of the sleeve is provided with a driving mechanism used for driving the moving block to move, when the driving mechanism pushes the moving block to move along the outer wall of the clamping cylinder, the balls are exposed out of the containing grooves, an annular clamping part is formed on the inner wall of the clamping cylinder, and a positioning column capable of being embedded into the clamping cylinder is arranged in the center of a cover plate. And an annular clamping groove matched with the annular clamping part is formed in the circumferential side wall of the positioning column. According to the cover plate clamping device, the cover plate can be conveniently taken and placed, the conditions that the strength of a worker is difficult to control and the hand slips are avoided, the pressing effect of the cover plate is improved, and the labor intensity and the safety risk of the worker are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a cover plate clamp. Background Art

[0002] During the laptop computer processing, the laptop computer casing needs to be accurately and stably mounted on the machine tool using a special jig before specific processing can be carried out. During this process, a cover plate is required to press the casing onto the jig.

[0003] After searching, the patent publication number CN219787539U discloses a "CNC machining fixture", including: a middle plate and a main plate arranged on the upper surface of the middle plate, the workpiece is placed on the main plate, at least one first through hole is provided on the body of the workpiece that is in contact with the upper surface of the main plate, at least one adsorption area is provided on the upper surface of the main plate, the first through hole is located directly above the adsorption area, a plurality of interconnected lower air grooves are provided in the adsorption area, and each lower air groove in the adsorption area is connected to a vacuum generator or a vacuum pump through at least one pipeline, and a cover plate is provided above the workpiece placed on the upper surface of the main plate, and the lower surface of the cover plate is in contact with the upper surface of the workpiece body. The utility model realizes the application of full-surface and uniform pressure to the workpiece to be processed, and performs stable positioning, avoids positional displacement or tool vibration during the processing of the workpiece, and improves the quality and efficiency of workpiece processing.

[0004] During the process of combining and installing the cover plate with the notebook shell, the traditional method is for personnel to lift or lower the cover plate. However, it is difficult for personnel to control the strength to be consistent during the process of taking and placing the cover plate, resulting in a false cover or offset, which causes the shell to be offset during processing, affecting the processing quality. In addition, the cover plate is heavy, and personnel may easily slip and cause the cover plate to fall, posing a certain safety risk. Utility Model Content

[0005] The utility model aims to provide a cover plate clamp, which is convenient for taking and placing the cover plate, avoids the situation that the strength of personnel is difficult to control and the hands slip, improves the pressing effect of the cover plate, and reduces the labor intensity and safety risks of personnel.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cover plate clamper for clamping the cover plate, comprising: a clamping cylinder, a sleeve and a moving block located inside the sleeve, wherein the clamping cylinder is coaxially mounted on one end of the sleeve, and a plurality of receiving grooves are opened along the circumferential side wall of the clamping cylinder, wherein the receiving groove connects the inner wall and the outer wall of the clamping cylinder, and a ball is movably connected inside the receiving groove;

[0007] A driving mechanism for driving the moving block to move is arranged at the other end of the sleeve. When the driving mechanism pushes the moving block to move along the outer wall of the clamping cylinder, the ball is exposed from the accommodating groove and an annular clamping portion is formed on the inner wall of the clamping cylinder.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above solution, a positioning column capable of being embedded in the clamping tube is provided at the central position of a cover plate, and an annular clamping groove cooperating with the annular clamping portion is provided on the circumferential side wall of the positioning column.

[0010] 2. In the above solution, an annular inclined surface is arranged at one end of the locking cylinder close to the moving block and along its circumference.

[0011] 3. In the above solution, the moving block has a conical inner wall corresponding to the annular inclined surface, and the diameter of the conical inner wall decreases from bottom to top.

[0012] 4. In the above solution, the driving mechanism is a cylinder, and the movable rod of the cylinder can extend into the interior of the sleeve and be fixedly connected to the moving block.

[0013] 5. In the above solution, the driving mechanism is a telescopic rod, and the movable rod of the telescopic rod can extend into the interior of the sleeve and be fixedly connected to the moving block.

[0014] 6. In the above solution, the accommodating grooves are arranged at equal intervals.

[0015] 7. In the above solution, the opening diameter of the accommodating groove is 0.78~0.98 times the diameter of the ball.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The cover plate clamp of the utility model can push out the balls in the accommodating groove by moving the moving block downward along the outer wall of the locking cylinder, and multiple balls exposed on the inner wall of the locking cylinder form an annular locking portion, which can be embedded in the corresponding annular groove to achieve a fixed connection with the cover plate, thereby facilitating the taking and placing of the cover plate, avoiding the situation that the strength of personnel is difficult to control and the hand slips, improving the pressing effect of the cover plate, and reducing the labor intensity and safety risks of personnel; further, it is located at one end of the locking cylinder close to the moving block and an annular inclined surface is arranged along its circumference, the moving block has a conical inner wall corresponding to the annular inclined surface, and the diameter of the conical inner wall decreases from bottom to top, and the annular inclined surface corresponds to the conical inner wall, so that the moving block simultaneously pushes multiple balls to move synchronously, thereby improving the uniformity of clamping force distribution, reducing the shaking of the cover plate caused by uneven clamping force distribution, and improving the stability of cover plate clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 This is a structural schematic diagram of the cover plate clamp of the utility model;

[0019] Attached Figure 2 It is a partial structural cross-sectional view of the cover plate clamp of the utility model;

[0020] Attached Figure 3 For the utility model Figure 2 Enlarged view of point A.

[0021] In the above figures: 1, cover plate; 2, positioning column; 201, annular groove; 3, driving mechanism; 4, moving block; 401, conical inner wall; 5, sleeve; 6, locking cylinder; 601, ball; 602, annular inclined surface; 603, receiving groove. Implementation

[0022] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0023] Embodiment 1: A cover plate clamper for clamping a cover plate 1, comprising: a clamping cylinder 6, a sleeve 5, and a moving block 4 located inside the sleeve 5, wherein the clamping cylinder 6 is coaxially mounted at one end of the sleeve 6, and a plurality of receiving grooves 603 are provided along the circumferential side wall of the clamping cylinder 6, wherein the receiving groove 603 connects the inner wall and the outer wall of the clamping cylinder 6, and a ball 601 is movably connected inside the receiving groove 603;

[0024] When in use, the locking cylinder inside the sleeve can be aligned with the positioning column, so that the positioning column is embedded in the locking cylinder. At this time, the driving mechanism drives the moving block away from the locking cylinder, and the ball can move in the receiving groove. When the positioning column is embedded in the locking cylinder, the upper end of the positioning column squeezes the ball, so that the ball is retracted into the receiving groove;

[0025] A driving mechanism 3 for driving the moving block 4 to move is disposed at the other end of the sleeve 6. When the driving mechanism 3 pushes the moving block 4 to move along the outer wall of the clamping tube 6, the ball 601 is exposed from the accommodating groove 603 and an annular clamping portion is formed on the inner wall of the clamping tube 6.

[0026] When the locking cylinder is engaged with the positioning column, the driving mechanism drives the moving block to approach the locking cylinder, so that the conical inner wall of the moving block contacts the annular inclined surface of the locking cylinder, thereby causing the moving block to push the ball out of the accommodating groove, causing the ball to contact the annular locking groove, so that the locking cylinder and the positioning column are fixed, thereby clamping the cover plate and moving the cover plate. When moving to the specified position, the locking cylinder is separated from the positioning column, and the moving block moves away from the locking cylinder. Through the gravity of the cover plate, the annular locking groove can push the ball back into the accommodating groove, thereby separating the cover plate from the locking cylinder.

[0027] A positioning column 2 capable of being embedded in the clamping tube 6 is disposed at the central position of a cover plate 1 , and an annular clamping groove 201 cooperating with the annular clamping portion is disposed on the circumferential side wall of the positioning column 2 .

[0028] An annular inclined surface 602 is disposed at one end of the locking tube 6 close to the moving block 4 and along its circumference.

[0029] The moving block 4 has a conical inner wall 401 corresponding to the annular inclined surface 602, and the diameter of the conical inner wall 401 decreases from bottom to top.

[0030] The driving mechanism 3 is a cylinder, and the movable rod of the cylinder can extend into the interior of the sleeve 6 and be fixedly connected with the moving block 4 .

[0031] The accommodating grooves 603 are arranged at equal intervals.

[0032] The opening diameter of the accommodating groove 603 is 0.8 times the diameter of the ball 601 .

[0033] The cover plate 1 is a copper plate.

[0034] Embodiment 2: A cover plate clamper for clamping a cover plate 1, comprising: a clamping cylinder 6, a sleeve 5, and a moving block 4 located inside the sleeve 5, wherein the clamping cylinder 6 is coaxially mounted at one end of the sleeve 6, and a plurality of receiving grooves 603 are provided along the circumferential side wall of the clamping cylinder 6, wherein the receiving groove 603 connects the inner wall and the outer wall of the clamping cylinder 6, and a ball 601 is movably connected inside the receiving groove 603;

[0035] By moving the moving block downward along the outer wall of the clamping cylinder, the balls in the accommodating groove can be pushed out, and a plurality of balls exposed on the inner wall of the clamping cylinder form an annular clamping portion, which can be embedded in the corresponding annular groove, thereby achieving a fixed connection with the cover plate, thereby facilitating the taking and placing of the cover plate, avoiding the situation where the strength of the personnel is difficult to control and the hand slips, improving the pressing effect of the cover plate, and reducing the labor intensity and safety risks of the personnel;

[0036] A driving mechanism 3 for driving the moving block 4 to move is disposed at the other end of the sleeve 6. When the driving mechanism 3 pushes the moving block 4 to move along the outer wall of the clamping tube 6, the ball 601 is exposed from the accommodating groove 603 and an annular clamping portion is formed on the inner wall of the clamping tube 6.

[0037] A positioning column 2 capable of being embedded in the clamping tube 6 is disposed at the central position of a cover plate 1 , and an annular clamping groove 201 cooperating with the annular clamping portion is disposed on the circumferential side wall of the positioning column 2 .

[0038] An annular inclined surface 602 is disposed at one end of the locking tube 6 close to the moving block 4 and along its circumference.

[0039] The moving block 4 has a conical inner wall 401 corresponding to the annular inclined surface 602, and the diameter of the conical inner wall 401 decreases from bottom to top.

[0040] The corresponding cooperation between the annular inclined surface and the conical inner wall enables the moving block to push multiple balls to move synchronously at the same time, thereby improving the uniformity of the clamping force distribution, reducing the shaking of the cover plate caused by the uneven distribution of the clamping force, and improving the stability of the cover plate clamping;

[0041] The driving mechanism 3 is a telescopic rod, and the movable rod of the telescopic rod can extend into the interior of the sleeve 6 and be fixedly connected with the moving block 4 .

[0042] The accommodating grooves 603 are arranged at equal intervals.

[0043] The opening diameter of the accommodating groove 603 is 0.95 times the diameter of the ball 601 .

[0044] The cover plate 1 is a rectangular plate; the cover plate 1 is an iron plate.

[0045] The working principle is:

[0046] When in use, the locking cylinder inside the sleeve can be aligned with the positioning column, so that the positioning column is embedded in the locking cylinder. At this time, the driving mechanism drives the moving block away from the locking cylinder, and the ball can move in the receiving groove. When the positioning column is embedded in the locking cylinder, the upper end of the positioning column squeezes the ball, so that the ball is retracted into the receiving groove;

[0047] When the locking cylinder is engaged with the positioning column, the driving mechanism drives the moving block to approach the locking cylinder, so that the conical inner wall of the moving block contacts the annular inclined surface of the locking cylinder, thereby causing the moving block to push the ball out of the accommodating groove, causing the ball to contact the annular locking groove, so that the locking cylinder and the positioning column are fixed, thereby clamping the cover plate and moving the cover plate. When moving to the specified position, the locking cylinder is separated from the positioning column, and the moving block moves away from the locking cylinder. Through the gravity of the cover plate, the annular locking groove can push the ball back into the accommodating groove, thereby separating the cover plate from the locking cylinder.

[0048] When the cover plate clamp is used, the annular clamping part formed by the multiple balls exposed on the inner wall of the clamping cylinder can be embedded in the corresponding annular groove to achieve a fixed connection with the cover plate, thereby facilitating the taking and placing of the cover plate, avoiding the situation where the strength of the personnel is difficult to control and the hand slips, improving the pressing effect of the cover plate, and reducing the labor intensity and safety risks of the personnel;

[0049] Furthermore, by the corresponding cooperation between the annular inclined surface and the conical inner wall, the moving block simultaneously pushes multiple balls to move synchronously, thereby improving the uniformity of the clamping force distribution, reducing the shaking of the cover plate caused by the uneven distribution of the clamping force, and improving the stability of the cover plate clamping.

[0050] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A cover plate clamper for clamping a cover plate (1), characterized in that: include: A clamping cylinder (6), a sleeve (5), and a moving block (4) located inside the sleeve (5), wherein the clamping cylinder (6) is coaxially mounted on one end of the sleeve (5), and a plurality of receiving grooves (603) are provided along the circumferential side wall of the clamping cylinder (6), wherein the receiving groove (603) connects the inner wall and the outer wall of the clamping cylinder (6), and a ball (601) is movably connected inside the receiving groove (603); A driving mechanism (3) for driving the moving block (4) to move is disposed at the other end of the sleeve (5); when the driving mechanism (3) pushes the moving block (4) to move along the outer wall of the locking cylinder (6), the ball (601) is exposed from the accommodating groove (603), and an annular locking portion is formed on the inner wall of the locking cylinder (6).

2. The cover plate holder according to claim 1, characterized in that: A positioning column (2) capable of being embedded in a clamping cylinder (6) is provided at the central position of a cover plate (1), and an annular clamping groove (201) cooperating with an annular clamping portion is provided on the circumferential side wall of the positioning column (2).

3. The cover plate holder according to claim 1, characterized in that: An annular inclined surface (602) is disposed at one end of the locking cylinder (6) close to the moving block (4) and along its circumference.

4. The cover plate holder according to claim 3, characterized in that: The moving block (4) has a conical inner wall (401) corresponding to the annular inclined surface (602), and the diameter of the conical inner wall (401) decreases from bottom to top.

5. The cover plate holder according to claim 1, characterized in that: The driving mechanism (3) is a cylinder, and the movable rod of the cylinder can extend into the interior of the sleeve (5) and be fixedly connected to the moving block (4).

6. The cover plate holder according to claim 1, characterized in that: The driving mechanism (3) is a telescopic rod, and the movable rod of the telescopic rod can extend into the interior of the sleeve (5) and be fixedly connected to the moving block (4).

7. The cover plate holder according to claim 1, characterized in that: The accommodating grooves (603) are arranged at equal intervals.

8. The cover plate holder according to claim 1, characterized in that: The opening diameter of the accommodating groove (603) is 0.78 to 0.98 times the diameter of the ball (601).

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