A double-sided locking clamp convenient to adjust
Patent Information
- Application Number
- CN202521889625.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-03
AI Technical Summary
[0002]夹具是一种用于固定、支撑或定位工件的工具，广泛应用于制造、加工、装配和检测等各个领域，随着制造业和工程技术的发展，对工件固定和定位的需求日益增多，夹具作为一种重要的辅助工具，常用于加工、装配和检测等环节，传统夹具一般采用单侧锁紧装置，其在夹持过程中存在调节不便、固定力度不足和适应性差等问题，因此需要一种便于调节的双边锁紧夹具
1.本夹具在使用过程中，通过卡接机构的设计，可以快速完成对夹块的安装或拆卸工作，这样可以根据工件的形状和尺寸选择合适的夹块进行夹持固定工作，提高了夹具的实用性和灵活性。
Smart Images
Figure CN224659215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology, and in particular to a double-sided locking clamp that is easy to adjust. Background Technology
[0002] A fixture is a tool used to fix, support, or position workpieces. It is widely used in various fields such as manufacturing, processing, assembly, and inspection. With the development of manufacturing and engineering technology, the demand for workpiece fixing and positioning is increasing. As an important auxiliary tool, fixtures are often used in processing, assembly, and inspection. Traditional fixtures generally use a single-sided locking device, which has problems such as inconvenient adjustment, insufficient fixing force, and poor adaptability during the clamping process. Therefore, a double-sided locking fixture that is easy to adjust is needed.
[0003] Existing fixtures are often designed for specific workpieces, resulting in poor adaptability. When faced with workpieces of different shapes, sizes, or materials, existing fixtures often fail to meet the requirements, reducing the practicality of the equipment. In addition, traditional fixtures do not have a rotation function. When it is necessary to flip the workpiece, it is necessary to first release the workpiece from the fixation, then manually flip it, and finally re-clamp it. This operation method consumes a lot of time and reduces work efficiency. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easily adjustable double-sided locking clamp.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An easily adjustable double-sided locking clamp includes an operating table. Connecting plates are provided at both ends of the top of the operating table. A support plate is fixed at the middle of the top of each of the two connecting plates. An installation groove is provided inside the operating table, and a first moving mechanism for moving the two connecting plates is provided inside the installation groove. Connecting seats are rotatably connected to the inner sidewalls of the two support plates. Rotating mechanisms for rotating the connecting seats are provided on the outer sidewalls of the two connecting plates. Second sliding grooves are provided on the inner sidewalls of the two connecting seats. Two mounting seats are symmetrically arranged on the inner sidewalls of the two connecting seats. Second moving mechanisms for moving the two mounting seats are provided inside the two second sliding grooves. Rectangular holes are provided at one end of the sidewalls of the four mounting seats. Clamping blocks are provided on the inner sidewalls of the four mounting seats. Clamping mechanisms for engaging the clamping blocks are provided on the inner sidewalls of the four mounting seats. During use, the clamping mechanism design allows for quick installation or removal of the clamping blocks. This allows for selection of appropriate clamping blocks based on the shape and size of the workpiece, improving the practicality and flexibility of the clamp.
[0006] As a further embodiment of this utility model, the first moving mechanism includes two first sliding grooves, which are symmetrically arranged on both sides of the top of the operating table and are connected to the mounting groove. Each of the two first sliding grooves contains a sliding rod, and both first sliding grooves are fixed to the operating table. Two first sliding blocks are symmetrically fitted onto the side walls of each of the two sliding rods. The four first sliding blocks are fixed in pairs to two connecting plates. A first rotating shaft is rotatably connected to the middle of the mounting groove, with one end of the first rotating shaft penetrating the bottom of the operating table. A gear is fitted onto one end of the first rotating shaft. Two racks are symmetrically arranged inside the mounting groove, both racks meshing with the gears. The two racks are located directly below the two first sliding grooves, with the top of one rack near the operating table engaging with one of the first sliding grooves. The first slider is fixed, and the other rack is fixed to the top of the other end near the operating table and to another first slider. The other end of the first rotating shaft is sleeved with a first worm gear. Two first support plates are fixed at the bottom of the operating table. The inner sidewalls of the two first support plates are rotatably connected to the same first worm, and the first worm and the first worm gear mesh. One of the first support plates is fixed to the outer sidewall of the first motor, and the output shaft of the first motor is fixed to the first worm. The first motor drives the first worm to rotate, which in turn drives the gear to rotate in conjunction with the first worm gear and the first rotating shaft, thereby driving the two racks to move. Since the two racks are fixed to the two ends that are far apart from each other, under the restriction of the two slide rods, the four first sliders move closer to each other in pairs, thereby driving the two connecting plates to move closer to each other, that is, driving the two support plates and the two connecting seats to move closer to each other.
[0007] As a further embodiment of this utility model, the second moving mechanism includes a bidirectional lead screw, which is disposed inside one of the second sliding grooves. Both ends of the bidirectional lead screw are rotatably connected to the inner sidewall of one of the connecting seats. Two lead screw nuts are symmetrically sleeved on the sidewall of the bidirectional lead screw, and both lead screw nuts are adapted to the bidirectional lead screw. The two lead screw nuts are respectively fixed to two of the mounting seats. A third motor is fixed to the outer sidewall of one end of one of the connecting seats, and the output shaft of the third motor is fixed to the bidirectional lead screw, driving the two third motors to drive the two bidirectional lead screws to rotate. Under the constraint of the two second sliding grooves, the four lead screw nuts move closer to each other in pairs, thereby driving the four mounting seats to move closer to each other in pairs, that is, driving the four clamping blocks to move closer to each other in pairs, thus completing the clamping and fixing of the workpiece.
[0008] As a further embodiment of this utility model, the rotating mechanism includes a second rotating shaft, which is disposed through one of the support plates on the side wall. One end of the second rotating shaft is fixed to one of the connecting seats, and the other end of the second rotating shaft is sleeved with a second worm gear. Two second support plates are fixed to the outer side wall of one of the support plates. The inner side walls of the two second support plates are rotatably connected to the same second worm, and the second worm and the second worm gear mesh. A second motor is fixed to the outer side wall of one of the second support plates, and the output shaft of the second motor is fixed to the second worm, driving the two second motors to drive the two second worms to rotate simultaneously. In conjunction with the two second rotating shafts and the two second worm gears, the two connecting seats are driven to rotate simultaneously. When both connecting seats have rotated 180 degrees, the workpiece can be flipped without manual flipping, saving time and improving work efficiency.
[0009] As a further embodiment of this utility model, the snap-fit mechanism includes a rectangular block, which is disposed on the inner wall of one of the rectangular holes and is adapted to the rectangular hole. One end of the rectangular block is fixed to a mounting plate, and the mounting plate is fixed to one of the clamping blocks. A rectangular groove is formed at the top of the rectangular block, and the rectangular groove has a constricted opening structure. A second slider is slidably connected to the inner wall of the rectangular groove. A clamping block is fixed to the top of the second slider. A spring is disposed inside the rectangular groove, and the spring is located below the second slider. The clamping block is pre-fixed to the surface of the mounting plate and pressed... Pressing the clamping block causes the second slider to move downwards along the inner wall of the rectangular slide groove until the clamping block is fully retracted into the rectangular slide groove. At this time, the spring is in a compressed state. Then, insert the rectangular block into one of the rectangular holes. When the clamping block enters from one end of the rectangular hole and exits from the other end, the reaction force of the compressed spring pushes the second slider to move in the opposite direction, thereby pushing one end of the clamping block out of the rectangular slide groove. This completes the installation of the clamping block. This allows for quick replacement of the matching clamping block according to different shapes and specifications of workpieces, improving the flexibility and practicality of the equipment.
[0010] The beneficial effects of this utility model are as follows: 1. During use, the clamping mechanism of this fixture allows for quick installation or removal of the clamping blocks. This enables the selection of appropriate clamping blocks based on the shape and size of the workpiece, thus improving the practicality and flexibility of the fixture.
[0011] 2. The rotating mechanism can drive the connecting seat to rotate, thus completing the flipping process of the workpiece. There is no need for manual flipping, saving time and improving work efficiency.
[0012] 3. By combining the first and second moving mechanisms, the distance between the clamping blocks can be precisely controlled, enabling the clamping and fixing of workpieces of the same shape but different sizes, further improving the practicality of the fixture. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a double-sided locking clamp that is easy to adjust according to the present invention; Figure 2 This is a schematic diagram of the first slide groove, slide rod, and first slider structure of a double-sided locking clamp that is easy to adjust according to this utility model; Figure 3 A schematic diagram of the internal working table of a double-sided locking clamp that is easy to adjust according to this utility model; Figure 4 A schematic diagram of the first rotating shaft, gear, first worm gear, and first worm of a double-sided locking clamp that is easy to adjust according to this utility model; Figure 5 This is a schematic diagram of the rotating mechanism of a double-sided locking clamp that is easy to adjust, as proposed in this utility model. Figure 6 An exploded view of the mounting base, lead screw nut, and rectangular block of a double-sided locking clamp that is easy to adjust according to this utility model; Figure 7 This is a cross-sectional view of a rectangular block of a double-sided locking clamp that is easy to adjust, as proposed in this utility model.
[0014] In the diagram: 1. Operating platform; 2. Connecting plate; 3. Support plate; 4. Connecting seat; 5. First slide groove; 6. Slide rod; 7. First slider; 8. Mounting groove; 9. First rotating shaft; 10. Gear; 11. Rack; 12. First worm gear; 13. First support plate; 14. First worm; 15. First motor; 16. Second rotating shaft; 17. Second worm gear; 18. Second support plate; 19. Second worm; 20. Second motor; 21. Mounting seat; 22. Second slide groove; 23. Lead screw nut; 24. Double-acting lead screw; 25. Rectangular hole; 26. Rectangular block; 27. Mounting plate; 28. Clamping block; 29. Rectangular slide groove; 30. Second slider; 31. Locking block; 32. Spring; 33. Third motor. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] Reference Figure 1 - Figure 7An easily adjustable double-sided locking clamp includes an operating table 1. Connecting plates 2 are provided at both ends of the top of the operating table 1. Support plates 3 are fixed at the middle of the top of each connecting plate 2. An installation groove 8 is provided inside the operating table 1. A first moving mechanism for moving the two connecting plates 2 is provided inside the installation groove 8. Connecting seats 4 are rotatably connected to the inner walls of each of the two support plates 3. Rotating mechanisms for rotating the connecting seats 4 are provided on the outer walls of each of the two connecting plates 2. Second sliding grooves 22 are provided on the inner walls of each of the two connecting seats 4. Two mounting seats 2 are symmetrically arranged on the inner walls of each of the two connecting seats 4. 1. Each of the two second sliding grooves 22 is equipped with a second moving mechanism for moving the two mounting seats 21. Each of the four mounting seats 21 has a rectangular hole 25 at one end of its side wall. Each of the four mounting seats 21 has a clamping block 28 on its inner side wall and a clamping mechanism for engaging the clamping block 28 on its inner side wall. During use, the clamping mechanism allows for quick installation or removal of the clamping block 28. This allows for selection of a suitable clamping block 28 based on the shape and size of the workpiece, thus improving the practicality and flexibility of the fixture.
[0017] In this embodiment, the first moving mechanism includes two first sliding grooves 5, which are symmetrically opened on both sides of the top of the operating table 1. Both first sliding grooves 5 are connected to the mounting groove 8. Each of the two first sliding grooves 5 is provided with a sliding rod 6, and both first sliding grooves 5 are fixed to the operating table 1. Two first sliders 7 are symmetrically sleeved on the side walls of the two sliding rods 6. The four first sliders 7 are fixed to two connecting plates 2 in pairs. A first rotating shaft 9 is rotatably connected to the middle of the mounting groove 8. One end of the first rotating shaft 9 passes through the bottom of the operating table 1, and a gear 10 is sleeved on one end of the first rotating shaft 9. Two racks 11 are symmetrically arranged inside the mounting groove 8. Both racks 11 mesh with the gear 10, and the two racks 11 are located directly below the two first sliding grooves 5. The top of one rack 11 near the operating table 1 is fixed to one of the first sliders 7, and the other rack 11 is fixed to the top of the first slider 7 near the operating table 1. The top of the other end of the operating platform 1 is fixed to another first slider 7. The other end of the first rotating shaft 9 is sleeved with a first worm gear 12. Two first support plates 13 are fixed to the bottom of the operating platform 1. The inner sidewalls of the two first support plates 13 are rotatably connected to the same first worm 14, and the first worm 14 and the first worm gear 12 mesh. A first motor 15 is fixed to the outer sidewall of one of the first support plates 13, and the output shaft of the first motor 15 is fixed to the first worm 14. The first motor 15 drives the first worm 14 to rotate, which in turn drives the gear 10 to rotate in conjunction with the first worm gear 12 and the first rotating shaft 9, thereby driving the two racks 11 to move. Since the two ends of the two racks 11 that are far apart from each other are fixed with first sliders 7, under the restriction of the two slide rods 6, the four first sliders 7 move closer to each other in pairs, thereby driving the two connecting plates 2 to move closer to each other, that is, driving the two support plates 3 and the two connecting seats 4 to move closer to each other.
[0018] In this embodiment, the second moving mechanism includes a bidirectional lead screw 24, which is disposed inside one of the second slide grooves 22. Both ends of the bidirectional lead screw 24 are rotatably connected to the inner sidewall of one of the connecting seats 4. Two lead screw nuts 23 are symmetrically sleeved on the sidewall of the bidirectional lead screw 24, and both lead screw nuts 23 are adapted to the bidirectional lead screw 24. The two lead screw nuts 23 are respectively fixed to two of the mounting seats 21. A third motor 33 is fixed to the outer sidewall of one end of one of the connecting seats 4, and the output shaft of the third motor 33 is fixed to the bidirectional lead screw 24. The two third motors 33 drive the two bidirectional lead screws 24 to rotate. Under the constraint of the two second slide grooves 22, the four lead screw nuts 23 move closer to each other in pairs, thereby driving the four mounting seats 21 to move closer to each other in pairs, that is, driving the four clamping blocks 28 to move closer to each other in pairs. This can complete the clamping and fixing of the workpiece.
[0019] In this embodiment, the rotating mechanism includes a second rotating shaft 16, which is disposed through one of the support plates 3 on the side wall. One end of the second rotating shaft 16 is fixed to one of the connecting seats 4, and the other end of the second rotating shaft 16 is sleeved with a second worm gear 17. Two second support plates 18 are fixed to the outer side wall of one of the support plates 3. The inner side walls of the two second support plates 18 are rotatably connected to the same second worm 19, and the second worm 19 meshes with the second worm gear 17. A second motor 20 is fixed to the outer side wall of one of the second support plates 18, and the output shaft of the second motor 20 is fixed to the second worm 19. The two second motors 20 drive the two second worms 19 to rotate simultaneously. In conjunction with the two second rotating shafts 16 and the two second worm gears 17, the two connecting seats 4 are rotated simultaneously. When both connecting seats 4 have rotated 180 degrees, the workpiece can be flipped without manual flipping, saving time and improving work efficiency.
[0020] In this embodiment, the snap-fit mechanism includes a rectangular block 26, which is disposed on the inner wall of one of the rectangular holes 25 and is adapted to the rectangular hole 25. One end of the rectangular block 26 is fixed to a mounting plate 27, and the mounting plate 27 is fixed to one of the clamping blocks 28. A rectangular groove 29 is formed at the top of the rectangular block 26, and the rectangular groove 29 has a constricted opening structure. A second slider 30 is slidably connected to the inner wall of the rectangular groove 29. A locking block 31 is fixed to the top of the second slider 30. A spring 32 is disposed inside the rectangular groove 29, and the spring 32 is located below the second slider 30. The clamping block 28 is pre-fixed to the surface of the mounting plate 27, and the locking block 31 is pressed down. The second slider 30 moves downward along the inner wall of the rectangular slide groove 29 until the locking block 31 is fully retracted into the rectangular slide groove 29. At this time, the spring 32 is in a compressed state. Then, the rectangular block 26 is inserted into one of the rectangular holes 25. When the locking block 31 enters from one end of the rectangular hole 25 and exits from the other end, the reaction force of the compressed spring 32 pushes the second slider 30 to move in the opposite direction, thereby pushing one end of the locking block 31 out of the rectangular slide groove 29. This completes the installation of the clamping block 28. In this way, the clamping block 28 can be quickly replaced according to the different shapes and specifications of the workpiece, which improves the flexibility and practicality of the equipment.
[0021] Working principle: During use, this fixture selects and installs appropriate clamping blocks 28 according to the shape and size of the workpiece. During installation, the clamping blocks 28 are pre-fixed to the surface of the mounting plate 27, and the locking block 31 is pressed down, causing the second slider 30 to move downwards along the inner wall of the rectangular slide groove 29 until the locking block 31 is fully retracted into the rectangular slide groove 29. At this time, the spring 32 is compressed. Then, the rectangular block 26 is inserted into one of the rectangular holes 25. When the locking block 31 enters from one end of the rectangular hole 25 and exits from the other end, the spring 32 springs back into place under compression. Under the reaction force of the spring 32, the second slider 30 is pushed to move in the opposite direction, thereby pushing one end of the clamping block 31 out of the rectangular slide groove 29, thus completing the installation of the clamping block 28. This allows for quick replacement of the clamping block 28 to match different shapes and specifications of workpieces, improving the flexibility and practicality of the equipment. During clamping, the power switch of the first motor 15 is turned on, driving the first motor 15 to rotate the first worm gear 14. This, in conjunction with the first worm wheel 12 and the first rotating shaft 9, drives the gear 10 to rotate, thereby driving the two racks 11 to move. Each of the two ends of the rack 11, which are far apart from each other, is fixed with a first slider 7. Under the constraint of the two slide rods 6, the four first sliders 7 move closer to each other in pairs, thereby driving the two connecting plates 2 to move closer to each other, that is, the two support plates 3 and the two connecting seats 4 to move closer to each other. When the two connecting seats 4 are in the appropriate position, they stop moving. At this time, the power switches of the two third motors 33 are turned on, driving the two third motors 33 to drive the two bidirectional lead screws 24 to rotate respectively. Under the constraint of the two second slide grooves 22, the four lead screw nuts 23 move closer to each other in pairs, thereby driving the four mounting seats 21 to rotate. When the workpiece is moved closer together in pairs, the four clamping blocks 28 move closer together in pairs, thus clamping and fixing the workpiece. When the workpiece needs to be flipped, the power switches of the two second motors 20 are turned on at the same time, driving the two second motors 20 to drive the two second worm gears 19 to rotate simultaneously. In conjunction with the two second rotating shafts 16 and the two second worm wheels 17, the two connecting seats 4 are rotated simultaneously. When both connecting seats 4 have rotated 180 degrees, the workpiece can be flipped without manual flipping, saving time and improving work efficiency.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An easily adjustable double-sided locking clamp, comprising an operating table (1), characterized in that, The operating table (1) is provided with connecting plates (2) at both ends of the top. Support plates (3) are fixed at the middle of the top of the two connecting plates (2). The operating table (1) is provided with an installation groove (8). The installation groove (8) is provided with a first moving mechanism for moving the two connecting plates (2). The inner sidewalls of the two support plates (3) are rotatably connected with connecting seats (4). The outer sidewalls of the two connecting plates (2) are provided with a rotating mechanism for rotating the connecting seats (4). The inner sidewalls of the two connecting seats (4) are provided with a second sliding groove (22). The inner sidewalls of the two connecting seats (4) are symmetrically provided with two mounting seats (21). The two second sliding grooves (22) are provided with a second moving mechanism for moving the two mounting seats (21). The sidewalls of the four mounting seats (21) are provided with a rectangular hole (25) at one end. The inner sidewalls of the four mounting seats (21) are provided with clamping blocks (28). The inner sidewalls of the four mounting seats (21) are provided with a clamping mechanism for clamping the clamping blocks (28).
2. The adjustable double-sided locking clamp according to claim 1, characterized in that, The first moving mechanism includes two first slide grooves (5), which are symmetrically opened on both sides of the top of the operating table (1), and both first slide grooves (5) are connected to the mounting groove (8). Each of the two first slide grooves (5) is provided with a slide rod (6), and both first slide grooves (5) are fixed to the operating table (1). The side walls of the two slide rods (6) are symmetrically fitted with two first sliders (7), and the four first sliders (7) are fixed to two connecting plates (2) in pairs.
3. The adjustable double-sided locking clamp according to claim 2, characterized in that, The mounting groove (8) is rotatably connected to a first rotating shaft (9) in the middle, and one end of the first rotating shaft (9) passes through the bottom of the operating table (1). A gear (10) is sleeved on one end of the first rotating shaft (9). Two racks (11) are symmetrically arranged inside the mounting groove (8). Both racks (11) mesh with the gears (10), and the two racks (11) are located directly below the two first sliding grooves (5). The top of one rack (11) near the operating table (1) is fixed to one of the first sliding blocks (7), and the other rack (11) is fixed to the other. The top of the other end of the strip (11) near the operating table (1) is fixed to another first slider (7), and the other end of the first rotating shaft (9) is sleeved with a first worm gear (12). Two first support plates (13) are fixed at the bottom of the operating table (1). The inner sidewalls of the two first support plates (13) are rotatably connected to the same first worm (14), and the first worm (14) and the first worm gear (12) mesh. A first motor (15) is fixed on the outer sidewall of one of the first support plates (13), and the output shaft of the first motor (15) is fixed to the first worm (14).
4. The adjustable double-sided locking clamp according to claim 1, characterized in that, The second moving mechanism includes a bidirectional lead screw (24), which is disposed inside one of the second slide grooves (22), and both ends of the bidirectional lead screw (24) are rotatably connected to the inner side wall of one of the connecting seats (4). Two lead screw nuts (23) are symmetrically sleeved on the side wall of the bidirectional lead screw (24), and both lead screw nuts (23) are adapted to the bidirectional lead screw (24). The two lead screw nuts (23) are respectively fixed to two of the mounting seats (21). A third motor (33) is fixed to the outer side wall of one end of one of the connecting seats (4), and the output shaft of the third motor (33) is fixed to the bidirectional lead screw (24).
5. The adjustable double-sided locking clamp according to claim 1, characterized in that, The rotating mechanism includes a second rotating shaft (16), which is disposed through the side wall of one of the support plates (3). One end of the second rotating shaft (16) is fixed to one of the connecting seats (4). The other end of the second rotating shaft (16) is sleeved with a second worm gear (17). Two second support plates (18) are fixed to the outer side wall of one of the support plates (3). The inner side walls of the two second support plates (18) are rotatably connected to the same second worm (19). The second worm (19) meshes with the second worm gear (17). A second motor (20) is fixed to the outer side wall of one of the second support plates (18). The output shaft of the second motor (20) is fixed to the second worm (19).
6. The adjustable double-sided locking clamp according to claim 1, characterized in that, The snap-fit mechanism includes a rectangular block (26), which is disposed on the inner wall of one of the rectangular holes (25) and is adapted to the rectangular hole (25). One end of the rectangular block (26) is fixed with a mounting plate (27), and the mounting plate (27) is fixed with one of the clamping blocks (28). A rectangular groove (29) is provided on the top of the rectangular block (26), and the rectangular groove (29) is a constricted structure. A second slider (30) is slidably connected to the inner wall of the rectangular groove (29). A locking block (31) is fixed on the top of the second slider (30). A spring (32) is provided inside the rectangular groove (29), and the spring (32) is located below the second slider (30).