Screw clamp
The screw clamp's adjustable design addresses the issue of limited size adaptability by allowing quick adjustment and secure gripping of diverse items through interchangeable jaws and a gear-driven mechanism, enhancing its versatility.
Patent Information
- Application Number
- CN202421797736.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing screw clamps do not have an adjustment structure, and are difficult to adapt to clamping of items of different sizes, and their application range is limited.
A screw clamp is designed to achieve rapid adjustment and replacement of the clamp by combining the mounting rod, internal threaded cylinder, screw rod, motor and bevel gear, and expand the scope of application.
It realizes rapid clamping of items of different sizes, expands the scope of application, and facilitates clamping of various items.
Smart Images
Figure CN223098960U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a screw clamp. Background Art
[0002] With the continuous development of the economy, the process of industrialization is accelerating. In the process of industrial production, clamps are often needed to transfer products for subsequent processing, which can effectively improve production efficiency and are widely used in machinery, shipbuilding, aviation, medicine, metallurgy and food manufacturing. Screw clamps are widely used due to their simple structure, easy maintenance and self-locking function. The prior art discloses a screw clamp with authorization announcement number CN211893882U, including a machine base, a fixed clamp and a movable clamp. The fixed clamp is connected to the machine base, and a rack is provided in the machine base. The machine base is connected to a driving device to drive the rack to move in the machine base. The movable clamp is connected to a shaft, and the shaft is connected to a gear. The gear is meshed with the rack to drive the movable clamp to rotate relative to the fixed clamp to achieve opening and closing. The screw clamp provided by the utility model has a reasonable design and is convenient for disassembly and assembly. The driving device adopts a cylinder, which drives the rack. The gear and the rack are meshed to convert the linear motion of the rack into circular motion. As the gear rotates, the movable clamp rotates with the axis as the center. The movable clamp cooperates with the fixed clamp to complete the opening and closing of the clamp, thereby clamping or loosening the object. The meshing of the gear and the rack is used to realize the unilateral movement of the movable clamp. After the gear is rotated into place, it will not rotate without reason, thereby ensuring that the clamping is firm and stable.
[0003] However, it was found during use that the above design does not have an adjustment structure, which makes it inconvenient to clamp objects of different sizes, has a limited scope of application, and is difficult to clamp different objects. Utility Model Content
[0004] In view of the above problems, the purpose of the utility model is to provide a screw clamp that is convenient for quick adjustment of the clamp, convenient for clamping objects of different sizes, effectively expanding the scope of application, convenient for clamping different objects, and solving the problems raised in the above background technology.
[0005] To achieve the above object, the technical solution adopted by the utility model is as follows: A screw clamp, including a mounting rod, one end of the mounting rod is provided with a fixing plate, a circular groove is opened at one end of the mounting rod, an internally threaded cylinder is slidably installed in the circular groove, one end of the internally threaded cylinder extends outside the circular groove and is fixedly installed with a mounting block, clamping plates are provided at the bottoms of the mounting block and the mounting rod respectively, and the two clamping plates are adapted to each other. A first screw rod is installed in the internally threaded cylinder by thread, a first chamber is opened on the mounting rod, one end of the first screw rod extends into the first chamber and is provided with a first bevel gear, a motor is provided at the top of the mounting rod, an output shaft of the motor extends into the first chamber and is provided with a second bevel gear, the second bevel gear meshes with the first bevel gear, a bracket is fixedly installed at the top of the mounting rod, a sliding groove is opened on the top inner wall of the circular groove, a first limiting block is slidably installed in the sliding groove, the first limiting block is fixed to the top of the internally threaded cylinder, a plurality of uniformly arranged round holes penetrate through the top inner wall of the sliding groove, a slider is slidably sleeved on the bracket, a rectangular through groove penetrates through the bracket, a groove is opened at the bottom end of the slider, a sliding rod is slidably installed in the groove, the sliding rod slidably penetrates through the rectangular through groove, a plug rod is fixedly installed at the bottom end of the sliding rod, the plug rod slidably penetrates through the corresponding round hole, a second screw rod is installed on the top of the sliding rod by thread, and the top end of the second screw rod extends outside the slider.
[0006] For facilitating the replacement of different clamping plates:
[0007] As a further improvement of the above technical solution: The mounting rod and the mounting block both further include connecting blocks, the two connecting blocks are respectively fixedly installed at the bottoms of the mounting rod and the mounting block, a clamping groove is opened at the bottom of the connecting block, a clamping block is slidably installed in the clamping groove, the clamping block is fixed to the top of the corresponding clamping plate, a plurality of clamping rods penetrate through the clamping block, a second chamber is opened on the connecting block, a sliding plate is slidably installed in the second chamber, one end of the clamping rod extends into the corresponding second chamber and is fixed to the sliding plate, and a third screw rod is rotatably installed on the connecting block, and the third screw rod threadedly penetrates through the sliding plate.
[0008] The beneficial effect of this improvement is: By setting like this, it is convenient to quickly disassemble and assemble the clamping plate, and then it is convenient to replace different clamping plates, so as to be convenient to adapt to different items, effectively expanding the scope of application.
[0009] For facilitating the limitation of the first screw rod and the output shaft of the motor:
[0010] As a further improvement of the above technical solution: A first through hole penetrates between the first chamber and the circular groove, a second through hole penetrates through the top inner wall of the first chamber, the first screw rod rotatably penetrates through the first through hole, and the output shaft of the motor rotatably penetrates through the second through hole.
[0011] The beneficial effects of this improvement are as follows: By providing the first through-hole and the second through-hole, it is convenient to limit the first lead screw and the output shaft of the motor.
[0012] To facilitate the sliding of the slider on the bracket:
[0013] As a further improvement of the above technical solution: A rectangular through-hole communicating with the groove is penetrated through the slider, the bracket slidably penetrates through the rectangular through-hole, a third through-hole is penetrated through the top inner wall of the groove, and the second lead screw rotatably penetrates through the third through-hole.
[0014] The beneficial effects of this improvement are as follows: By providing the rectangular through-hole, it is convenient for the slider to slide on the bracket.
[0015] To facilitate the lifting of the sliding rod by the second lead screw:
[0016] As a further improvement of the above technical solution: A threaded groove is provided at the top end of the sliding rod, and the second lead screw is threadedly installed in the threaded groove.
[0017] The beneficial effects of this improvement are as follows: By providing the threaded groove, it is convenient for the second lead screw to drive the sliding rod to lift.
[0018] To facilitate the limitation of the sliding rod:
[0019] As a further improvement of the above technical solution: Limiting grooves are provided on both inner walls of the groove, a second limiting block is slidably installed in the limiting groove, and the second limiting block is fixed to one side of the sliding rod.
[0020] The beneficial effects of this improvement are as follows: By providing the limiting groove and the second limiting block, it is convenient to limit the sliding rod.
[0021] To facilitate the locking of the clamping block by the clamping rod:
[0022] As a further improvement of the above technical solution: A plurality of fourth through-holes are penetrated through the clamping block, a plurality of fifth through-holes are penetrated between the second chamber and the corresponding card slot, and the clamping rod slidably penetrates through the corresponding fourth through-hole and fifth through-hole.
[0023] The beneficial effects of this improvement are as follows: By providing the fourth through-hole and the fifth through-hole, it is convenient for the clamping rod to lock the clamping block.
[0024] To facilitate the support and limitation of the third lead screw:
[0025] As a further improvement of the above technical solution: A sixth through-hole is penetrated through one inner wall of the second chamber, and the third lead screw rotatably penetrates through the sixth through-hole.
[0026] The beneficial effects of this improvement are as follows: By providing the sixth through-hole, it is convenient to support and limit the third lead screw.
[0027] The beneficial effects of the present utility model are as follows: Through a simple adjustment structure, it is convenient to quickly adjust the clamp, and then it is convenient to clamp articles of different sizes, effectively expanding the scope of application, and further facilitating the clamping of different articles. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is the front sectional structural schematic diagram of the present utility model;
[0029] Figure 2 for the present utility model Figure 1 is the enlarged structural schematic diagram of part A in the present utility model;
[0030] Figure 3 for the present utility model Figure 1 is the enlarged structural schematic diagram of part B in the present utility model;
[0031] Figure 4 for the present utility model Figure 1 is the enlarged structural schematic diagram of part C in the present utility model;
[0032] Figure 5 is the three-dimensional sectional structural schematic diagram of the slider in the present utility model;
[0033] Figure 6 is the three-dimensional sectional combined assembly structural schematic diagram of the slide plate and the clamping rod in the present utility model.
[0034] In the figure: 1. mounting rod; 2. fixing plate; 3. circular groove; 4. internal thread cylinder; 5. mounting block; 6. clamping plate; 7. first lead screw; 8. first chamber; 9. first bevel gear; 10. motor; 11. second bevel gear; 12. bracket; 13. chute; 14. first limit block; 15. circular hole; 16. slider; 17. rectangular through groove; 18. groove; 19. slide rod; 20. inserting rod; 21. second lead screw; 22. connecting block; 23. card slot; 24. clamping block; 25. clamping rod; 26. second chamber; 27. slide plate; 28. third lead screw. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0035] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description of this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.
[0036] As Figures 1-6As shown in the figure, a screw clamp includes a mounting rod 1. One end of the mounting rod 1 is provided with a fixing plate 2. A circular groove 3 is formed at one end of the mounting rod 1. An internally threaded cylinder 4 is slidably installed in the circular groove 3. One end of the internally threaded cylinder 4 extends outside the circular groove 3 and is fixedly installed with a mounting block 5. Clamping plates 6 are provided at the bottom of both the mounting block 5 and the mounting rod 1. The two clamping plates 6 are adapted to each other. A first lead screw 7 is installed in the internally threaded cylinder 4 by internal threads. A first chamber 8 is formed in the mounting rod 1. One end of the first lead screw 7 extends into the first chamber 8 and is provided with a first bevel gear 9. A motor 10 is provided at the top of the mounting rod 1. The output shaft of the motor 10 extends into the first chamber 8 and is provided with a second bevel gear 11. The second bevel gear 11 meshes with the first bevel gear 9. A bracket 12 is fixedly installed at the top of the mounting rod 1. A chute 13 is formed on the top inner wall of the circular groove 3. A first limiting block 14 is slidably installed in the chute 13. The first limiting block 14 is fixed to the top of the internally threaded cylinder 4. A plurality of uniformly arranged circular holes 15 penetrate through the top inner wall of the chute 13. A slider 16 is slidably sleeved on the bracket 12. A rectangular through groove 17 penetrates through the bracket 12. A groove 18 is formed at the bottom end of the slider 16. A sliding rod 19 is slidably installed in the groove 18. The sliding rod 19 slidably penetrates through the rectangular through groove 17. The bottom end of the sliding rod 19 is fixedly installed with an inserting rod 20. The inserting rod 20 slidably penetrates through the corresponding circular hole 15. A second lead screw 21 is installed on the top of the sliding rod 19 by threads. The top end of the second lead screw 21 extends outside the slider 16. Through a simple adjustment structure, it is convenient to quickly adjust the clamp, and then it is convenient to clamp items of different sizes, effectively expanding the scope of application, and then it is convenient to clamp different items. Both the mounting rod 1 and the mounting block 5 further include connecting blocks 22. The two connecting blocks 22 are respectively fixedly installed at the bottom of the mounting rod 1 and the mounting block 5. A clamping groove 23 is formed at the bottom of the connecting block 22. A clamping block 24 is slidably installed in the clamping groove 23. The clamping block 24 is fixed to the top of the corresponding clamping plate 6. A plurality of clamping rods 25 slidably penetrate through the clamping block 24. A second chamber 26 is formed in the connecting block 22. A sliding plate 27 is slidably installed in the second chamber 26. One end of the clamping rod 25 extends into the corresponding second chamber 26 and is fixed to the sliding plate 27. A third lead screw 28 is rotatably installed on the connecting block 22. The third lead screw 28 threadedly penetrates through the sliding plate 27. By setting like this, it is convenient to quickly disassemble and assemble the clamping plate 6, and then it is convenient to replace different clamping plates 6, so as to be convenient to adapt to different items, effectively expanding the scope of application. A first through hole penetrates between the first chamber 8 and the circular groove 3. A second through hole penetrates through the top inner wall of the first chamber 8. The first lead screw 7 rotatably penetrates through the first through hole. The output shaft of the motor 10 rotatably penetrates through the second through hole. By providing the first through hole and the second through hole, it is convenient to limit the first lead screw 7 and the output shaft of the motor 10.A rectangular through-hole communicating with the groove 18 penetrates through the slider 16, the bracket 12 slidably penetrates through the rectangular through-hole, a third through-hole penetrates through the top inner wall of the groove 18, the second lead screw 21 rotatably penetrates through the third through-hole. By providing the rectangular through-hole, it is convenient for the slider 16 to slide on the bracket 12. A threaded groove is provided at the top end of the slide bar 19, and the second lead screw 21 is threadedly installed in the threaded groove. By providing the threaded groove, it is convenient for the second lead screw 21 to drive the slide bar 19 to move up and down. Limiting grooves are provided on both inner walls of the groove 18, and a second limiting block is slidably installed in the limiting groove, and the second limiting block is fixed to one side of the slide bar 19. By providing the limiting groove and the second limiting block, it is convenient to limit the slide bar 19. A plurality of fourth through-holes penetrate through the clamping block 24, and a plurality of fifth through-holes penetrate between the second chamber 26 and the corresponding clamping groove 23. The clamping rod 25 slidably penetrates through the corresponding fourth through-hole and fifth through-hole. By providing the fourth through-hole and the fifth through-hole, it is convenient for the clamping rod 25 to lock the clamping block 24. A sixth through-hole penetrates through one inner wall of the second chamber 26, and the third lead screw 28 rotatably penetrates through the sixth through-hole. By providing the sixth through-hole, it is convenient to support and limit the third lead screw 28.,
[0037] The working principle of the present utility model is as follows: When in use, first fix the clamp on the moving mechanism through the fixing plate 2, and then rotate the second lead screw 21, so that the slide bar 19 is driven to slide into the groove 18, and the insertion rod 20 is driven to slide out of the corresponding round hole 15, so that the fixation of the slider 16 is released. Then push the slider 16, so that the slider 16 is pushed to slide on the bracket 12 to a suitable position, and the slide bar 19 is driven to slide horizontally in the rectangular through slot 17. Then rotate the second lead screw 21 in the reverse direction, so that the slide bar 19 is driven to descend until the insertion rod 20 is driven to slide through the corresponding round hole 15. Then start the motor 10, the output shaft of the motor 10 drives the second bevel gear 11 to rotate, the second bevel gear 11 drives the first bevel gear 9 to rotate, the first bevel gear 9 drives the first lead screw 7 to rotate, so that the internally threaded cylinder 4 is driven to slide out of the round groove 3, and the first limit block 14 is driven to slide horizontally in the chute 13 until the first limit block 14 contacts the insertion rod 20 and is blocked. The internally threaded cylinder 4 drives the mounting block 5 away from the mounting rod 1, so that one of the clamping plates 6 is driven to move horizontally, and the distance between the two clamping plates 6 is adjusted to be appropriate. Then place the article between the two clamping plates 6, and the output shaft of the motor 10 rotates in the reverse direction, so that the two clamping plates 6 approach each other until the article is clamped. Through such a setting, it is convenient to quickly adjust the clamp, and then it is convenient to clamp articles of different sizes, effectively expanding the scope of application, and then it is convenient to clamp different articles. When it is necessary to replace the clamping plate 6, first rotate the two third lead screws 28, the third lead screws 28 drive the slide plate 27 to slide horizontally in the corresponding second chamber 26, so that a plurality of clamping rods 25 are driven to slide away from the clamping blocks 24, and the fixation of the clamping blocks 24 is released. Then pull the clamping plate 6, so that the clamping blocks 24 are driven to slide out of the clamping grooves 23, and the clamping plate 6 is removed. Then the required clamping plate 6 can be replaced. Through such a setting, it is convenient to quickly disassemble and assemble the clamping plate 6, and then it is convenient to replace different clamping plates 6, so as to be convenient to adapt to different articles, effectively expanding the scope of application.
[0038] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device.
[0039] In this text, specific examples are used to elaborate on the principles and implementation modes of the present utility model. The description of the above examples is only for helping to understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limited nature of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements, embellishments or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as the protection scope of the present utility model.
Claims
1. A screw clamp, comprising a mounting rod (1), one end of the mounting rod (1) is provided with a fixing plate (2), characterized in that: One end of the mounting rod (1) is provided with a circular groove (3). An internally threaded cylinder (4) is slidably mounted in the circular groove (3). One end of the internally threaded cylinder (4) extends outside the circular groove (3) and is fixedly provided with a mounting block (5). Clamping plates (6) are provided at the bottom of both the mounting block (5) and the mounting rod (1). The two clamping plates (6) are adapted to each other. A first lead screw (7) is threadedly mounted in the internally threaded cylinder (4). A first chamber (8) is provided in the mounting rod (1). One end of the first lead screw (7) extends into the first chamber (8) and is provided with a first bevel gear (9). A motor (10) is provided at the top of the mounting rod (1). The output shaft of the motor (10) extends into the first chamber (8) and is provided with a second bevel gear (11). The second bevel gear (11) meshes with the first bevel gear (9). A bracket (12) is fixedly mounted at the top of the mounting rod (1). A chute (13) is provided on the top inner wall of the circular groove (3). A first limiting block (14) is slidably mounted in the chute (13). The first limiting block (14) is fixed to the top of the internally threaded cylinder (4). A plurality of uniformly arranged circular holes (15) penetrate through the top inner wall of the chute (13). A slider (16) is slidably sleeved on the bracket (12). A rectangular through groove (17) penetrates through the bracket (12). A groove (18) is provided at the bottom end of the slider (16). A sliding rod (19) is slidably mounted in the groove (18). The sliding rod (19) slidably penetrates through the rectangular through groove (17). The bottom end of the sliding rod (19) is fixedly provided with a plug rod (20). The plug rod (20) slidably penetrates through the corresponding circular hole (15). A second lead screw (21) is threadedly mounted on the top of the sliding rod (19). The top end of the second lead screw (21) extends outside the slider (16).
2. The screw clamp according to claim 1, wherein: Both the mounting rod (1) and the mounting block (5) further include connecting blocks (22). The two connecting blocks (22) are respectively fixedly mounted at the bottom of the mounting rod (1) and the mounting block (5). A clamping groove (23) is provided at the bottom of the connecting block (22). A clamping block (24) is slidably mounted in the clamping groove (23). The clamping block (24) is fixed to the top of the corresponding clamping plate (6). A plurality of clamping rods (25) slidably penetrate through the clamping block (24). A second chamber (26) is provided in the connecting block (22). A sliding plate (27) is slidably mounted in the second chamber (26). One end of the clamping rod (25) extends into the corresponding second chamber (26) and is fixed to the sliding plate (27). A third lead screw (28) is rotatably mounted on the connecting block (22). The third lead screw (28) threadedly penetrates through the sliding plate (27).
3. A screw clamp according to claim 1, characterized in that: A first through hole penetrates between the first chamber (8) and the circular groove (3). A second through hole penetrates through the top inner wall of the first chamber (8). The first lead screw (7) rotatably penetrates through the first through hole. The output shaft of the motor (10) rotatably penetrates through the second through hole.
4. A screw clamp according to claim 1, characterized in that: A rectangular through-hole communicating with the groove (18) penetrates through the slider (16), the bracket (12) slidably penetrates through the rectangular through-hole, a third through-hole penetrates through the top inner wall of the groove (18), and the second lead screw (21) rotatably penetrates through the third through-hole.
5. A screw clamp according to claim 1, characterized in that: A threaded groove is formed at the top end of the sliding rod (19), and the second lead screw (21) is threadedly installed in the threaded groove.
6. A screw clamp according to claim 1, characterized in that: Limiting grooves are formed on both inner walls of the groove (18), second limiting blocks are slidably installed in the limiting grooves, and the second limiting blocks are fixed to one side of the sliding rod (19).
7. A screw clamp according to claim 2, wherein: A plurality of fourth through-holes penetrate through the clamping block (24), a plurality of fifth through-holes penetrate between the second chamber (26) and the corresponding card slot (23), and the clamping rod (25) slidably penetrates through the corresponding fourth through-hole and fifth through-hole.
8. A screw clamp according to claim 2, characterized in that: A sixth through-hole penetrates through one inner wall of the second chamber (26), and the third lead screw (28) rotatably penetrates through the sixth through-hole.