Rapid clamping fixture for three types of implant tibia liners

Abstract

The utility model relates to a rapid clamping fixture for three kinds of implant tibia liners, and belongs to the technical field of clamping tools. Comprising vertical feet, a bottom plate and a plurality of clamping devices, the clamping devices are arranged above the bottom plate, and the vertical feet are arranged below the bottom plate; the clamping device comprises an ok clamp, a fixed clamp, a movable clamp and a power mechanism, the ok clamp comprises inclined blocks which are symmetrically arranged and a fan-shaped push block matched with the inclined blocks, the inclined blocks are obliquely arranged inwards and downwards, the fan-shaped push block is arranged between the inclined blocks, the movable clamp is connected with the inclined blocks in the ok clamp, the fixed clamp is installed on a bottom plate opposite to the movable clamp, and the power mechanism is arranged at the bottom of the bottom plate. The output end of the power mechanism penetrates through the bottom plate and is connected with the fan-shaped push block. The multi-station clamping device is simple in structure and convenient to operate, multi-station clamping is achieved, the clamping speed is increased, and the utilization rate and the production rate of a machine tool are improved.

Description

Technical Field

[0001] The utility model relates to a quick clamping fixture for three types of implant tibial pads, belonging to the technical field of clamping tools. Background Art

[0002] The continuous development of modern medical technology and the demand for efficient and high-quality surgical instrument implants. With the increasing maturity of medical technology, the demand for Class III implant tibial pads in orthopedic surgery has gradually increased, which requires manufacturers to be able to quickly and accurately produce Class III implant tibial pads that meet the requirements to meet the requirements of the operation. The implantation of Class III implant tibial pads is crucial to the patient's recovery. The ability to quickly obtain suitable Class III implant tibial pads means that the operation can be performed faster and the patient can start the recovery process earlier. In addition, as competition in the medical market intensifies, manufacturers also need to reduce costs by improving production efficiency, so as to gain more market share and make their products more competitive. Traditional manual clamping uses vises, which are difficult to meet modern production needs due to their low efficiency and lack of precision. Therefore, it is necessary to develop a clamp that can achieve rapid clamping. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide a quick clamping fixture for three types of implant tibial pads, which has a simple structure, is easy to operate, realizes multi-station clamping, increases the clamping speed, and improves machine tool utilization and productivity.

[0004] The utility model discloses a quick clamping fixture for three types of implant tibial pads, comprising a foot, a base plate and a plurality of clamping devices, wherein the clamping devices are arranged above the base plate and the foot is arranged below the base plate;

[0005] The clamping device includes an OK clamp, a fixed clamp, a movable clamp and a power mechanism. The OK clamp includes symmetrically arranged inclined blocks and fan-shaped push blocks adapted to the inclined blocks. The inclined blocks are arranged to be inclined inward and downward. The fan-shaped push blocks are placed between the inclined blocks. The movable clamp is connected to the inclined blocks in the OK clamp. The fixed clamp is installed on the base plate opposite the movable clamp. The power mechanism is placed at the bottom of the base plate. The output end of the power mechanism passes through the base plate and is connected to the fan-shaped push block.

[0006] By setting up the OK clamp, fixed clamp, movable clamp and power mechanism, the workpiece is placed between the fixed clamp and the movable clamp, and the power mechanism is started. The power mechanism drives the fan-shaped push block to move downward, pushes the inclined block outward, and moves the movable clamp toward the fixed clamp, thereby realizing the rapid clamping of the workpiece. By setting up several clamping devices on the bottom plate, multi-station clamping is realized, which improves work efficiency. This clamp has a simple structure and is easy to operate.

[0007] The jaws of the fixed clamp are arranged in steps. The fixed clamp and the movable clamp of one specification can clamp workpieces of various specifications, thereby improving the use range of the clamp and the applicability of the clamp.

[0008] The fixing pliers are detachably connected to the base plate via fastening bolts, and the fixing pliers are positioned with the base plate via positioning pins. By providing the fastening bolts, the fixing pliers and the base plate can be detached, which facilitates the replacement of the fixing pliers, and by providing the positioning pins, the fixing pliers can be quickly positioned.

[0009] The jaws of the fixed pliers are arranged in a sawtooth shape, which increases the bite force of the fixed pliers and makes the workpiece between the fixed pliers and the movable pliers clamped stably and reliably.

[0010] The clamping device also includes a limit screw and a collar. The collar is placed between the output end of the power mechanism and the fan-shaped push block. The upper and lower ends of the collar are respectively abutted against the fan-shaped push block and the output end of the power mechanism. The limit screw passes through the fan-shaped push block and the collar to connect the fan-shaped push block to the output end of the power mechanism.

[0011] A semicircular T-shaped block is arranged at the bottom of the movable jaw, a first slide groove is arranged on the bottom plate corresponding to the movable jaw, and a second slide groove is arranged on the bottom plate corresponding to the semicircular T-shaped block. The movable jaw slides in the first slide groove on the bottom plate, which plays a positioning role in the movement of the movable jaw. By arranging the semicircular T-shaped block and the second slide groove, the movement of the movable jaw is guided to prevent the movement direction of the movable jaw from being deviated.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model sets an OK clamp, a fixed clamp, a movable clamp and a power mechanism, places the workpiece between the fixed clamp and the movable clamp, starts the power mechanism, drives the fan-shaped push block to move downward, pushes the inclined block outward, and moves the movable clamp toward the fixed clamp, thereby achieving rapid clamping of the workpiece. By setting a plurality of clamping devices on the bottom plate, multi-station clamping is achieved, and work efficiency is improved. The clamp has a simple structure and is easy to operate.

[0014] (2) The jaws of the fixed clamp are set in steps. Fixed clamps and movable clamps of one specification can clamp workpieces of various specifications, thereby increasing the use range of the clamp and improving the applicability of the clamp.

[0015] (3) The fixed pliers are detachably connected to the base plate by fastening bolts, and the fixed pliers are positioned with the base plate by positioning pins. By setting the fastening bolts, the fixed pliers and the base plate can be detached, which is convenient for replacing the fixed pliers. By setting the positioning pins, the fixed pliers can be quickly positioned.

[0016] (4) The jaws of the fixed pliers are serrated. The serrated jaws increase the bite force of the fixed pliers, making the workpiece between the fixed pliers and the movable pliers clamped stably and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;

[0018] Figure 2 yes Figure 1 Schematic cross-sectional view along the AA direction;

[0019] Figure 3 yes Figure 1 Schematic cross-sectional view in the middle BB direction;

[0020] Figure 4 yes Figure 1 Schematic cross-sectional view in the CC direction;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom plate in Example 1 of the utility model;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the fixing clamp in Embodiment 1 of the utility model;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the movable pliers in Embodiment 1 of the utility model;

[0024] Figure 8 It is a schematic diagram of the internal structure of the OK clamp in Example 1 of the utility model.

[0025] In the figure: 1. Base plate; 2. Fixed clamp; 3. Movable clamp; 4. OK clamp; 41. Oblique block; 42. Fan-shaped push block; 5. Third bolt; 6. Positioning pin; 7. Fastening bolt; 8. Standing foot; 9. Semicircular T-block; 10. Power mechanism; 11. First bolt; 12. Second bolt; 13. Limit screw; 14. Ring; 15. First slide groove; 16. Second slide groove; 17. Jaw; 18. Return spring. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with embodiments:

[0027] Example 1

[0028] like Figure 1 to Figure 7 As shown, the utility model discloses a quick clamping fixture for three types of implant tibial pads, comprising a foot 8, a base plate 1 and two clamping devices, and a multi-station clamping is realized on one fixture, the clamping device is placed above the base plate 1, the foot 8 is placed below the base plate 1, and the first bolt 11 connects the foot 8 to the base plate 1 in a sinking connection manner;

[0029] Each clamping device includes an OK clamp 4, two fixed clamps 2, two movable clamps 3 and a power mechanism 10, such as Figure 1 , Figure 3 , Figure 4 and Figure 8 As shown, the power mechanism 10 is a cylinder, the model of the ok clamp 4 is FK2-VT-T, the ok clamp 4 includes a symmetrically arranged inclined block 41 and a fan-shaped push block 42 adapted to the inclined block 41, the inclined block 41 is arranged to be inclined inward and downward, the fan-shaped push block 42 is placed between the inclined blocks 41, the movable clamp 3 is connected to the inclined block 41 in the ok clamp 4 through the second bolt 12, a reset spring 18 is arranged in the ok clamp 4, and the reset spring 18 can realize the reset of the inclined block, the fixed clamp 2 is installed on the bottom plate 1 opposite to the movable clamp 3, the fixed clamp 2 and the movable clamp 3 are arranged in pairs, the power mechanism 10 is placed at the bottom of the bottom plate 1, and the output end of the power mechanism 10 passes through the bottom plate 1 and is connected to the fan-shaped push block 42. The traditional processing method is completed in the machine tool. Each time the workpiece is processed, the tool needs to be changed and the door needs to be opened and closed. By setting two clamping devices on the base, each clamping device has two clamping stations, four stations can be processed simultaneously, saving 200 seconds of tool change time and door opening and closing time, shortening the processing time, improving machine tool utilization, and reducing production costs.

[0030] The clamping device also includes a limit screw 13 and a collar 14. Figure 4 As shown, the collar 14 is arranged in a T shape, and the collar 14 is placed between the output end of the power mechanism 10 and the fan-shaped push block 42. The large end of the collar 14 abuts against the bottom of the fan-shaped push block 42, and the small end of the collar 14 abuts against the top of the output end of the power mechanism 10. The limit screw 13 passes through the fan-shaped push block 42 and the collar 14 to connect the fan-shaped push block 42 with the output end of the power mechanism 10. A stepped hole is arranged in the fan-shaped push block 42, and the limit screw 13 is connected to the fan-shaped push block 42 in a sinking manner. The bottom of the limit screw 13 is connected to the output end of the power mechanism 10 by a thread. When the cylinder piston rod extends, the force is transmitted to the fan-shaped push block 42 through the collar 14, and the fan-shaped push block 42 is lifted up, and the inclined block 41 retracts under the action of the workpiece. When the cylinder piston rod retracts, the force is transmitted to the fan-shaped push block 42 through the limit screw 13, and the fan-shaped push block 42 is pulled downward, thereby pushing out the inclined block 41. Through practice, it is known that the clamping time is increased from 300 seconds / piece to 120 seconds / piece, and the clamping time is shortened by 180 seconds. The production quantity is increased from 33 pieces / day to 54 pieces / day.

[0031] The jaws 17 of the fixed clamp 2 are arranged in steps, such as Figure 6 As shown. The number of steps is two. One jaw 17 can clamp two types of workpieces. The movable clamp 3 is shared. When processing three types of implant tibial pads of different specifications, only the fixed clamp 2 needs to be replaced, which is convenient and fast.

[0032] The fixing clamp 2 is detachably connected to the base plate 1 by means of the fastening bolts 7, and the fixing clamp 2 is positioned with the base plate 1 by means of the positioning pins 6. Figure 1 By setting the fastening bolts 7, the fixing clamp 2 and the base plate 1 can be disassembled, which is convenient for replacing the fixing clamp 2. By setting the positioning pins 6, the fixing clamp 2 can be quickly positioned. During installation, only one alignment is required, and no alignment is required afterwards.

[0033] The jaws 17 of the fixed jaws 2 are arranged in a sawtooth shape. The sawtooth jaws 17 increase the bite force of the fixed jaws 2, so that the workpiece placed between the fixed jaws 2 and the movable jaws 3 is clamped stably and reliably.

[0034] Two semicircular T-shaped blocks 9 are provided at the bottom of the movable clamp 3, and the semicircular T-shaped blocks 9 are connected to the movable clamp 3 by a third bolt 5. A first slide groove 15 is provided on the bottom plate 1 corresponding to the movable clamp 3, and a second slide groove 16 is provided on the bottom plate 1 corresponding to the semicircular T-shaped blocks 9. Figure 2 and Figure 5 shown.

[0035] Working process: Place the workpiece between the fixed clamp 2 and the movable clamp 3, the cylinder is activated, the cylinder piston rod drives the fan-shaped push block 42 to move downward, pushes the inclined block 41 outward, and moves the movable clamp 3 toward the fixed clamp 2, thereby realizing the rapid clamping of the workpiece. After the workpiece is processed, the cylinder is activated, the cylinder piston rod drives the fan-shaped push block 42 to rise, and the movable clamp 3 retracts under the action of the reset spring 18 of the OK clamp 4, so that the workpiece can be taken out smoothly.

[0036] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A quick clamping fixture for three types of implant tibial pads, characterized in that: It comprises a foot (8), a base plate (1) and a plurality of clamping devices, wherein the clamping devices are arranged above the base plate (1) and the foot (8) is arranged below the base plate (1); The clamping device comprises an OK clamp (4), a fixed clamp (2), a movable clamp (3) and a power mechanism (10). The OK clamp (4) comprises symmetrically arranged inclined blocks (41) and fan-shaped push blocks (42) adapted to the inclined blocks (41). The inclined blocks (41) are arranged to be inclined inward and downward. The fan-shaped push blocks (42) are arranged between the inclined blocks (41). The movable clamp (3) is connected to the inclined blocks (41) in the OK clamp (4). The fixed clamp (2) is installed on a base plate (1) opposite to the movable clamp (3). The power mechanism (10) is placed at the bottom of the base plate (1). The output end of the power mechanism (10) passes through the base plate (1) and is connected to the fan-shaped push blocks (42).

2. A quick clamping fixture for tibial liner of Class III implant according to claim 1, characterized in that: The jaws (17) of the fixed pliers (2) are arranged in steps.

3. A quick clamping fixture for tibial liner of type III implant according to claim 1, characterized in that: The fixing clamp (2) is detachably connected to the base plate (1) via a fastening bolt (7), and the fixing clamp (2) is positioned with the base plate (1) via a positioning pin (6).

4. A quick clamping fixture for tibial liner of Class III implant according to claim 2, characterized in that: The jaws (17) of the fixing pliers (2) are arranged in a sawtooth shape.

5. A quick clamping fixture for a tibial liner of a Class III implant according to claim 1, characterized in that: A semicircular T-shaped block (9) is arranged at the bottom of the movable clamp (3), a first sliding groove (15) is arranged on the bottom plate (1) corresponding to the movable clamp (3), and a second sliding groove (16) is arranged on the bottom plate (1) corresponding to the semicircular T-shaped block (9).

6. A quick clamping fixture for tibial liner of Class III implants according to any one of claims 1-5, characterized in that: The clamping device also includes a limit screw (13) and a collar (14). The collar (14) is placed between the output end of the power mechanism (10) and the fan-shaped push block (42). The upper and lower ends of the collar (14) are respectively in contact with the fan-shaped push block (42) and the output end of the power mechanism (10). The limit screw (13) passes through the fan-shaped push block (42) and the collar (14) to connect the fan-shaped push block (42) with the output end of the power mechanism (10).

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