A quick positioning and clamping device

Abstract

This utility model discloses a quick positioning and clamping device, including a base, clamping mechanisms symmetrically arranged on the front and rear sides of the base, and a processing device located on the right side of the base. The base has a drive cavity with a drive motor fixed inside. The two ends of the drive motor are powered by a drive shaft, and a worm gear is fixed to the end of the drive shaft. The worm gear meshes with a worm wheel, and the top of the worm wheel is connected to an internal key connecting shaft. The clamping mechanism is inserted into the mounting groove at the top of the base via a plug-in portion at the bottom and locked by bolts. A lifting drive screw drives the movable column to rise and fall, and racks on both sides drive the sector gear and the swing arm to rotate. The swing arm pushes the "L"-shaped clamping arm to deflect via a guide pin and a guide groove. This device achieves simultaneous dual-side drive, quick assembly and disassembly, and high-precision clamping, and is suitable for positioning in pipe processing.

Description

Technical Field

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

[0002] In industrial manufacturing, automated assembly, and testing, clamping devices are key components for achieving precise workpiece positioning and reliable fixation. Traditional clamping mechanisms generally suffer from the following technical bottlenecks: applying force at a single clamping point easily leads to uneven stress on the workpiece, especially for asymmetrical, thin-walled, or weakly rigid workpieces, which can easily cause deformation, displacement, or even damage. Furthermore, some devices with rapid clamping functions have complex structures and excessive integration, resulting in poor maintainability and difficulties in fault diagnosis and component replacement. Therefore, there is an urgent need to develop a clamping device that can achieve stable, synchronous clamping at two points, with a simple, reliable structure and easy maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a quick positioning and clamping device to overcome the above-mentioned defects in the prior art.

[0004] According to this utility model, a quick positioning and clamping device includes a base and a circular tube. The base has symmetrically arranged clamping mechanisms on its front and rear sides. The base has a driving cavity extending front and rear. A driving motor is fixedly installed at the center of the driving cavity. Driving shafts are dynamically connected to both the front and rear sides of the driving motor. A worm gear is circumferentially fixed on the side of the driving shaft away from the driving motor, and a worm wheel is meshed on the worm gear. The top of the base has symmetrically arranged mounting grooves. An internal key connecting shaft is rotatably connected to the bottom wall of the mounting groove. An annular boss is fixedly installed at the top opening of the mounting groove. The clamping mechanism includes a housing and a plug-in part located at the bottom of the housing. The housing has symmetrically arranged movable cavities with upward openings. The plug-in part has a limited-slip inner cavity, the top of which slides within the limited-slip inner cavity. The device is equipped with a movable column, which has an internally threaded hole. A lifting drive screw is internally threaded into the hole. An external key shaft is rotatably connected to the bottom wall of the insert part. The top of the external key shaft is poweredly connected to the bottom of the lifting drive screw. Racks are symmetrically fixed in the left and right side walls of the movable column. A sector gear is rotatably connected to the movable cavity near the movable column. The sector gear meshes with the rack. A swing arm is fixed on the sector gear. An "L"-shaped clamping arm is also rotatably connected to the movable cavity. The lower part of the "L"-shaped clamping arm has a guide groove. A guide pin is slidably connected in the guide groove and fixedly connected to the swing arm. A positioning seat is fixed on the top of the movable column. A clamping head is provided on the upper part of the "L"-shaped clamping arm.

[0005] In a further technical solution, processing equipment is provided on the right side of the base.

[0006] In a further technical solution, the bottom of the inner keyway shaft on the front side is connected to the top of the worm gear on the front side in a power engagement connection, and the bottom of the inner keyway shaft on the rear side is connected to the top of the worm gear on the rear side in a power engagement connection.

[0007] In a further technical solution, the clamping head is made of a non-slip material.

[0008] In a further technical solution, the plug-in part is inserted into the mounting groove via the annular boss part and is fastened by bolts on the annular boss part.

[0009] In a further technical solution, the circular tube is placed on top of the positioning bracket.

[0010] The beneficial effects of this utility model are: This device achieves rapid overall assembly and disassembly of the clamping mechanism through the plug-in part and the mounting groove, combined with bolt fastening, without the need to disassemble the parts step by step. The rack and pinion of the movable column drives the sector gear, which converts linear motion into controllable angular rotation, and finally converts the deflection of the swing arm into the radial clamping force of the clamping arm, adapting to the curvature of the circular pipe. The self-locking characteristic of the worm gear ensures that the locking state is maintained even if there is an accidental power failure during clamping, preventing the pipe from falling off. Attached Figure Description

[0011] Figure 1 This is a top view of a quick positioning and clamping device according to this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of a quick positioning and clamping device according to this utility model;

[0013] Figure 3 This is a layout diagram of the driving cavity in this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Reference Figure 1-3 According to an embodiment of the present invention, a quick positioning and clamping device includes a base 1 and a circular tube 4. Clamping mechanisms 2 are symmetrically arranged on the front and rear sides of the base 1. A driving cavity 6 extending front to back is provided inside the base 1. A driving motor 26 is fixedly installed at the middle position of the driving cavity 6. Driving shafts 32 are dynamically connected to both the front and rear sides of the driving motor 26. A worm gear 8 is circumferentially fixed on the side of the driving shaft 32 away from the driving motor 26. A worm wheel 7 is meshed on the worm gear 8. A mounting groove 5 symmetrically arranged on the top of the base 1 is provided. An inner key connecting shaft 9 is rotatably connected to the bottom wall of the mounting groove 5. An annular boss 28 is fixedly installed at the top opening of the mounting groove 5. The clamping mechanism 2 includes a housing and a plug-in part 10 located at the bottom of the housing. A movable cavity 25 symmetrically arranged on the left and right sides and opening upwards is provided inside the housing. A limited-slip inner cavity 11 is provided inside the plug-in part 10. A movable column is slidably connected to the top of the limited-slip inner cavity 11. 13. The movable column 13 has an internal threaded hole 27, which is internally threaded to a lifting drive screw 12. An external keyshaft 31 is rotatably connected to the bottom wall of the insert part 10. The top of the external keyshaft 31 is poweredly connected to the bottom of the lifting drive screw 12. Racks 15 are symmetrically fixed to the left and right side walls of the movable column 13. A sector gear 16 is rotatably connected to the movable cavity 25 near the movable column 13. The wheel 16 meshes with the rack 15. A swing arm 17 is fixedly mounted on the sector gear 16. An "L"-shaped clamping arm 19 is rotatably connected to the movable cavity 25. A guide groove 21 is provided on the lower part of the "L"-shaped clamping arm 19. A guide pin 18 is slidably connected in the guide groove 21. The guide pin 18 is fixedly connected to the swing arm 17. A positioning seat 23 is fixedly mounted on the top of the movable column 13. A clamping head 22 is provided on the upper part of the "L"-shaped clamping arm 19.

[0017] Beneficially or exemplaryly, the base 1 is provided with a processing device 3 on the right side, and the clamping mechanism (left) and the processing device 3 (right) are located on opposite sides of the base, so that the maintenance and operation space do not interfere with each other and the risk of accidental collision is reduced.

[0018] Advantageously or exemplaryly, the bottom of the inner keyway shaft 9 on the front side is poweredly connected to the top of the worm gear 7 on the front side, and the bottom of the inner keyway shaft 9 on the rear side is poweredly connected to the top of the worm gear 7 on the rear side.

[0019] Advantageously or exemplary, the clamping head 22 is made of a non-slip material.

[0020] Advantageously or exemplaryly, the plug-in part 10 is inserted into the mounting groove 5 via the annular boss part 28 and fastened by the bolts 29 on the annular boss part 28. This rigid structure can effectively resist vibration and impact loads during operation, prevent loosening of the connection, and ensure the stability of system operation.

[0021] Advantageously or exemplaryly, the circular tube 4 is placed on top of the positioning bracket 23, and the shape of the top of the positioning bracket 23 (typically an arc-shaped groove or V-groove matching the outer diameter of the tube) provides a natural placement position for the circular tube 4. The operator can achieve initial positioning simply by placing the tube into the bracket without complex adjustments.

[0022] In use, this utility model is as follows: the insert part 10 is inserted into the mounting groove 5, so that the top of the annular boss part 28 abuts against the bottom of the housing. Then, the clamping mechanism 2 is locked by bolts 29. At the same time, the outer key shaft 31 and the inner key connecting shaft 9 are connected by power cooperation, and the clamping mechanisms 2 on the front and rear sides are in the same position. Then, the drive motor 26 controls the drive shaft 32 to drive the worm 8 and the worm wheel 7 to rotate. The worm wheel 7 drives the inner key connecting shaft 9 and the outer key shaft 31 to rotate, and then the outer key shaft 31 drives the lifting drive screw 12 to rotate. At this time, the lifting drive screw... The rod 12 drives the movable column 13 to move upward, which in turn drives the sector gear 16 to rotate via the rack 15 on the movable column 13. The sector gear 16 then drives the swing arm 17 to deflect. The guide groove 21 on the swing arm 17 slides against the guide pin 18, thereby driving the "L"-shaped clamping arm 19 to deflect and clamp the circular tube 4. When it is necessary to release the circular tube 4, the drive motor 26 can be rotated in the opposite direction. When it is necessary to disassemble and maintain, the clamping mechanism 2 can be removed by removing the bolt 29. At the same time, clamping mechanisms 2 of different specifications can also be replaced.

[0023] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A quick positioning and clamping device, comprising a base (1) and a circular tube (4), characterized in that: The base (1) is symmetrically provided with clamping mechanisms (2) on both the front and rear sides. The base (1) is provided with a driving cavity (6) extending from front to back. A driving motor (26) is fixedly installed in the middle position of the driving cavity (6). The driving motor (26) is poweredly connected to a driving shaft (32) on both the front and rear sides. A worm gear (8) is circumferentially fixed on the side of the driving shaft (32) away from the driving motor (26). A worm wheel (7) is meshed on the worm gear (8). The top of the base (1) is provided with symmetrically arranged mounting mechanisms. The mounting groove (5) has an internal key connecting shaft (9) rotatably connected to the bottom wall of the mounting groove (5). An annular boss (28) is fixed at the top opening of the mounting groove (5). The clamping mechanism (2) includes a housing and a plug-in part (10) located at the bottom of the housing. The housing has a symmetrical movable cavity (25) with an upward opening. The plug-in part (10) has a limited-slip inner cavity (11). A movable column (13) is slidably connected to the top of the limited-slip inner cavity (11). The movable column (13) has an internal threaded hole (9). 27), the internal threaded hole (27) is internally threaded and connected to a lifting drive screw (12), the bottom wall of the insert part (10) is rotatably connected to an external key shaft (31), the top of the external key shaft (31) is dynamically connected to the bottom of the lifting drive screw (12), racks (15) are symmetrically fixed in the left and right side walls of the movable column (13), and a sector gear (16) is rotatably connected to the side of the movable cavity (25) near the movable column (13), the sector gear (16) and the rack (15) The fan gear (16) is fixedly connected to the rocker arm (17). The movable cavity (25) is also rotatably connected to the "L"-shaped clamping arm (19). The lower part of the "L"-shaped clamping arm (19) is provided with a guide groove (21). The guide groove (21) is slidably connected to the guide pin (18). The guide pin (18) is fixedly connected to the rocker arm (17). The top of the movable column (13) is fixedly provided with a positioning card seat (23). The upper part of the "L"-shaped clamping arm (19) is provided with a clamping head (22).

2. The quick positioning and clamping device according to claim 1, characterized in that: The base (1) is provided with a processing device (3) on its right side.

3. The quick positioning and clamping device according to claim 2, characterized in that: The bottom of the inner key connecting shaft (9) on the front side is connected to the top of the worm gear (7) on the front side in a power engagement connection, and the bottom of the inner key connecting shaft (9) on the rear side is connected to the top of the worm gear (7) on the rear side in a power engagement connection.

4. The quick positioning and clamping device according to claim 1, characterized in that: The clamping head (22) is made of a non-slip material.

5. A quick positioning and clamping device according to claim 1, characterized in that: The plug part (10) is inserted into the mounting groove (5) via the annular boss part (28) and is fastened by the bolts (29) on the annular boss part (28).

6. The quick positioning and clamping device according to claim 1, characterized in that: The circular tube (4) is placed on top of the positioning bracket (23).

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