Positioning and clamping device for machining automobile fender

Abstract

The utility model discloses a positioning and clamping device for processing an automobile fender, which comprises a mounting seat, a movable plate is rotatably mounted at the top of the mounting seat, a stud is connected onto the movable plate through threads, a mounting column is arranged at the top of the stud, and a spring, a movable sleeve and an end block are respectively sleeved on the outer wall of the mounting column; by designing the mounting base, the movable plate, the stud, the mounting column, the movable sleeve, the end block, the spring, the synchronous block and the rotating block, the spring provides an elastic extrusion effect on the movable sleeve, so that the movable sleeve is attached to the end face of the end block, then screwing acting force transmission is achieved, and after the clamping pressing head is pressed on the fender, when the clamping pressing head reaches the proper clamping pressing degree, the clamping pressing head is driven to rotate. At the moment, the torsion acting force of the movable sleeve and the end block is larger than the extrusion acting force of the spring, so that the movable sleeve is pushed to move upwards, transmission of the screwing acting force is stopped in time, and deformation damage caused by excessive extrusion of the fender due to continuous screwing of the stud is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning clamping devices, and in particular relates to a positioning clamping device for processing automobile fenders. Background Art

[0002] The fender is the outer panel of the car body that covers the wheels. It is named because its shape and position on the old car body resemble bird wings. According to the installation position, it is divided into front fenders and rear fenders. The front fender is installed at the front wheel. When the fender is processed and produced, it is placed on the workbench and then clamped and fixed with a positioning clamping device to avoid position displacement during the fender processing on the workbench.

[0003] When the existing automobile fender positioning clamping device is used to clamp and position the automobile fender, the stud at the top of the clamping device is screwed, and then the clamping pressure head at the bottom is driven to press against the surface of the fender for positioning. However, there are the following defects in the actual clamping and positioning:

[0004] (1) When the existing positioning clamping device adjusts the bottom clamping pressure head to press the fender surface through the stud, the clamping force is manually adjusted, and the degree of clamping cannot be controlled, which often causes the fender to be deformed and damaged due to excessive clamping. For this reason, we propose a positioning clamping device for processing automobile fenders. Utility Model Content

[0005] The utility model aims to provide a positioning clamping device for processing automobile fenders, so as to solve the problem that the positioning clamping device for automobile fenders proposed in the above background technology is prone to excessive clamping when clamping and pressing for positioning, causing deformation and damage of the fenders.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning and clamping device for processing automobile fenders, comprising a mounting seat, a movable plate is installed on the top of the mounting seat by rotation, a stud is connected to the movable plate by threading, a mounting post is arranged on the top of the stud, the outer walls of the mounting post are respectively sleeved with a spring, a movable sleeve and an end block, the end block is fixed to the top of the stud, a rotating groove with a circular cross-section is opened on the side wall of the bottom end of the mounting post, a rotating block is arranged inside the rotating groove, the rotating block is fixed to the inner wall of the end block, a synchronous groove is opened on the surface side wall of the mounting post, a synchronous block is arranged inside the synchronous groove, the synchronous block is fixed to the inner wall of the movable sleeve, a rotating head is connected to the top of the mounting post, and a clamping pressure head is fixed to the bottom of the stud.

[0007] Preferably, the surface of the mounting column is provided with an external thread, an adjusting sleeve is threadedly connected to the external thread, and the adjusting sleeve is located at the top of the spring.

[0008] Preferably, the surfaces of the rotating block and the synchronous block are both provided with spherical grooves, and balls are embedded in the spherical grooves.

[0009] Preferably, the cross sections of the mounting column, the movable sleeve and the end block are all circular structures, and the central axes of the mounting column, the movable sleeve and the end block coincide with each other.

[0010] Preferably, the longitudinal section of the mounting column is a T-shaped structure.

[0011] Preferably, the outer wall of the rotary head is provided with anti-slip protrusions.

[0012] Preferably, the side walls of the end block and the stud are jointly provided with ribs, and the longitudinal section of the ribs is a triangular structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) Through the designed mounting seat, movable plate, stud, mounting column, movable sleeve, end block, spring, synchronous block and rotating block, the stud can be rotated and adjusted on one side through the movable plate and the mounting seat. Under the action of the synchronous block, the movable sleeve can maintain the lifting and sliding movement on the mounting column while also maintaining synchronous rotation. The end block is connected to the mounting column through the rotating block and the rotating groove. The spring provides elastic squeezing effect on the movable sleeve, so that the movable sleeve and the end face of the end block fit together, thereby realizing the transmission of the screwing force, so that after the clamping pressure head is pressed on the fender, when it reaches the appropriate clamping and pressing degree, the movable sleeve and the end block are both The torsional force is greater than the extrusion force of the spring, thereby pushing the movable sleeve to move upward, achieving the timely cessation of transmission of the screwing force, and effectively avoiding excessive extrusion of the fender and deformation damage caused by continuing to screw the stud. The adjusting sleeve and the external thread are connected by threads, and the position is adjusted by screwing the adjusting sleeve on the external thread to adjust the deformation degree of the spring, thereby ensuring the change of its elastic potential energy, so that the utility model achieves the best clamping and tightening effect. The designed ball bearings lubricate the end faces of the rotating block and the synchronous block to reduce their wear and the influence of friction resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is an assembly cross-sectional view of the installation column, movable sleeve and end block of the utility model;

[0018] Figure 4 A three-dimensional diagram of the installation column of the utility model;

[0019] In the figure: 1. mounting seat; 2. movable plate; 3. external thread; 4. screw head; 5. stud; 6. rib plate; 7. mounting column; 8. adjusting sleeve; 9. spring; 10. movable sleeve; 11. clamping pressure head; 12. end block; 13. ball; 14. rotating block; 15. rotating groove; 16. synchronization block; 17. synchronization groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a positioning and clamping device for processing automobile fenders, comprising a mounting seat 1, a movable plate 2 is installed on the top of the mounting seat 1 by rotation, a stud 5 is connected to the movable plate 2 by threading, a mounting column 7 is arranged on the top of the stud 5, the outer walls of the mounting column 7 are respectively sleeved with springs 9, movable sleeves 10 and end blocks 12, the end blocks 12 are fixed to the top of the stud 5, a rotating groove 15 with a circular cross-section is opened on the side wall of the bottom end of the mounting column 7, a rotating block 14 is arranged inside the rotating groove 15, the rotating block 14 is fixed to the inner wall of the end block 12, a synchronous groove 17 is opened on the surface side wall of the mounting column 7, a synchronous block 16 is arranged inside the synchronous groove 17, the synchronous block 16 is fixed to the inner wall of the movable sleeve 10, a rotating head 4 is connected to the top of the mounting column, a clamping pressure head 11 is fixed to the bottom of the stud 5, through the designed mounting seat 1, movable plate 2 , stud 5, mounting column 7, movable sleeve 10, end block 12, spring 9, synchronous block 16 and rotating block 14. The stud 5 can be rotated and adjusted on one side through the movable plate 2 and the mounting seat 1. Under the action of the synchronous block 16, the movable sleeve 10 is kept to slide up and down on the mounting column 7 while also keeping synchronous rotation. The end block 12 is connected to the mounting column 7 through the rotating block 14 and the rotating groove 15. The spring 9 provides elastic squeezing effect on the movable sleeve 10, so that the end faces of the movable sleeve 10 and the end block 12 fit together, thereby realizing the transmission of the screwing force, so that after the clamping pressure head 11 is pressed on the fender, when it reaches the appropriate clamping and pressing degree, the torsional force of both the movable sleeve 10 and the end block 12 is greater than the squeezing force of the spring 9, thereby pushing the movable sleeve 10 to move upward, achieving timely stopping, and avoiding continued screwing of the stud 5 to cause excessive squeezing of the fender and deformation and damage.

[0023] In this embodiment, preferably, the surface of the mounting column 7 is provided with an external thread 3, and an adjusting sleeve 8 is threadedly connected to the external thread 3. Through the designed external thread 3 and adjusting sleeve 8, the adjusting sleeve 8 and the external thread 3 are threadedly connected, and the position is adjusted by screwing the adjusting sleeve 8 on the external thread 3 to adjust the deformation degree of the spring 9, thereby ensuring the change of its elastic potential energy, so that the utility model achieves the best clamping and tightening effect, and the adjusting sleeve 8 is at the top of the spring 9.

[0024] In the present embodiment, preferably, spherical grooves are provided on the surfaces of the rotating block 14 and the synchronous block 16, and balls 13 are embedded in the spherical grooves. The designed balls 13 are used to lubricate the end faces of the rotating block 14 and the synchronous block 16 to reduce their wear and the influence of friction resistance. The cross-sections of the mounting column 7, the movable sleeve 10 and the end block 12 are all circular structures, and the central axes of the mounting column 7, the movable sleeve 10 and the end block 12 coincide with each other. The longitudinal section of the mounting column 7 is a T-shaped structure.

[0025] In this embodiment, preferably, the outer wall of the screw head 4 is provided with anti-slip protrusions, and the side walls of the end block 12 and the stud 5 are jointly installed with ribs 6. The connection between the end block 12 and the stud 5 is reinforced by the designed ribs 6 to prevent breakage under the twisting force, and the longitudinal section of the rib 6 is a triangular structure.

[0026] Working principle and use process of the utility model: the utility model installs the stud 5 on the workbench through the movable plate 2 and the mounting seat 1 to be rotatably adjusted on one side. The movable sleeve 10 is kept on the mounting column 7 while sliding up and down under the action of the synchronous block 16, and the end block 12 is connected to the mounting column 7 through the rotating block 14 and the rotating groove 15. The spring 9 provides elastic extrusion to the movable sleeve 10, so that the end surface of the movable sleeve 10 and the end block 12 fit together, thereby realizing the transmission of the screwing force. The sub-plate is placed on the workbench, and then the position of the stud 5 is rotated to make it at the top of the fender, and then it is screwed through the screw head 4, and the clamping pressure head 11 is adjusted to move downward. After the clamping pressure head 11 is pressed on the fender, when it reaches a suitable clamping and pressing degree, the torsional force of the movable sleeve 10 and the end block 12 is greater than the squeezing force of the spring 9, thereby pushing the movable sleeve 10 to move upward, realizing that the transmission of the screwing force is stopped in time, thereby effectively avoiding continuing to screw the stud 5 to cause excessive squeezing of the fender and deformation and damage.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping device for processing an automobile fender, comprising a mounting seat (1), characterized in that: A movable plate (2) is installed on the top of the mounting seat (1) by rotation, and a stud (5) is connected to the movable plate (2) by threading. A mounting column (7) is arranged on the top of the stud (5). The outer wall of the mounting column (7) is respectively sleeved with a spring (9), a movable sleeve (10) and an end block (12). The end block (12) is fixed to the top of the stud (5). A rotating groove (15) with a circular cross-section is provided on the side wall of the bottom end of the mounting column (7). A rotating block (14) is arranged inside the rotating groove (15). The rotating block (14) is fixed on the inner wall of the end block (12). A synchronous groove (17) is provided on the surface side wall of the mounting column (7). A synchronous block (16) is arranged inside the synchronous groove (17). The synchronous block (16) is fixed on the inner wall of the movable sleeve (10). A rotary head (4) is connected to the top of the mounting column, and a clamping pressure head (11) is fixed to the bottom of the stud (5).

2. The positioning and clamping device for processing automobile fenders according to claim 1 is characterized in that: The surface of the mounting column (7) is provided with an external thread (3), an adjustment sleeve (8) is threadedly connected to the external thread (3), and the adjustment sleeve (8) is located on the top of the spring (9).

3. The positioning and clamping device for processing automobile fenders according to claim 1 is characterized in that: The surfaces of the rotating block (14) and the synchronous block (16) are both provided with spherical grooves, and the spherical grooves are inlaid with balls (13).

4. The positioning and clamping device for processing automobile fenders according to claim 1 is characterized in that: The cross sections of the mounting column (7), the movable sleeve (10) and the end block (12) are all circular structures, and the central axes of the mounting column (7), the movable sleeve (10) and the end block (12) coincide with each other.

5. The positioning and clamping device for processing automobile fenders according to claim 4 is characterized in that: The longitudinal section of the installation column (7) is a T-shaped structure.

6. The positioning and clamping device for processing automobile fenders according to claim 1, characterized in that: The outer wall of the rotary head (4) is provided with anti-slip protrusions.

7. The positioning and clamping device for processing automobile fenders according to claim 1, characterized in that: The side walls of the end block (12) and the stud (5) are jointly provided with a rib plate (6), and the longitudinal section of the rib plate (6) is a triangular structure.

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