A fixing structure for processing an automobile support plate

Abstract

The utility model discloses a kind of fixing structure for automobile support plate processing, relate to automobile support plate fixing technical field, including fixed platform, the top surface of the fixed platform is fixedly connected with side plate, the top surface of the fixed platform and side plate is provided with clamp;The clamp of the top surface of the fixed platform is used to the compression fixing of automobile support plate in vertical direction.The utility model realizes the compression of complex automobile support plate in vertical and horizontal direction simultaneously by the clamp on fixed platform and side plate, fixed more comprehensive, reliable, can effectively resist the processing stress in multiple directions, simultaneously by the abutting device of pullable, rotating, allow operator to carry out fast, flexible lateral positioning adjustment according to the specific profile of automobile support plate, a set of fixing structure can adapt to different models of automobile support plate in certain size range, realize the stability flexibility of clamp combination.

Description

Technical Field

[0001] This utility model relates to the field of automotive bracket plate fixing technology, and in particular to a fixing structure for processing automotive bracket plates. Background Technology

[0002] Automotive chassis brackets are an important component of vehicle chassis or body structures, typically characterized by irregular shapes, complex structures, and limited rigidity. Their manufacturing process involves various machining operations such as drilling, milling, and welding. The cutting forces, vibrations, or thermal stresses generated by these processes can easily lead to workpiece displacement, deformation, or exceeding machining accuracy tolerances if the workpiece is not securely fixed, severely impacting product quality.

[0003] Currently, dedicated fixtures are mostly used to fix such plate-shaped parts. Dedicated fixtures are designed for specific workpieces and have high stability, but their applicability is limited. Once the product is modified, the fixture cannot be used, which cannot meet the flexible needs of small batches and multiple varieties in modern production. At the same time, the structure of dedicated fixtures is usually relatively fixed, and they have poor adaptability to the small dimensional tolerances of workpieces, which can easily cause over-positioning or clamping deformation. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing structure for processing automotive bracket plates, so as to solve the problem mentioned in the background art of poor adaptability of existing fixtures to the small dimensional tolerances of workpieces, which easily leads to over-positioning or clamping deformation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing structure for processing automobile bracket plates, including a fixing table, a side plate fixedly connected to the top surface of the fixing table, and clamps provided on the top surfaces of both the fixing table and the side plate; the clamps on the top surface of the fixing table are used to press and fix the automobile bracket plate vertically, and the clamps on the top surface of the side plate are used to press and fix the automobile bracket plate horizontally.

[0006] The top surface of the fixed platform is provided with multiple abutting devices, which are arranged around the car bracket plate for horizontal positioning and support of the car bracket plate.

[0007] The abutting device includes an elliptical plate and an abutting rod disposed on the top surface of the fixed platform, and a locking device disposed on the bottom surface of the fixed platform. A support rod is inserted inside the elliptical plate, and the elliptical plate is rotatably and axially movable to the fixed platform through the support rod. The elliptical plate rotates through the central axis of the support rod. The abutting rod is fixedly connected to one end of the elliptical plate and is used to abut against the side wall of the car bracket plate. The locking device is used to restrict the elliptical plate from rotating in one direction when the support rod is in the lowered position. When the elliptical plate is pulled upward and the support rod is raised, the locking device is released, and the elliptical plate can rotate in any direction.

[0008] Preferably, the top end of the support rod passes through the fixed platform and the elliptical plate in sequence, and the top end of the support rod is threaded with a bolt. The bolt limits the position of the support rod, and the elliptical plate is clamped between the bolt and the top surface of the fixed platform, and the elliptical plate can rotate around the support rod.

[0009] Preferably, a spring is sleeved on the outside of the support rod, a support plate is fixedly connected to the outer wall of the support rod, and the spring is located between the support plate and the bottom surface of the fixed platform.

[0010] Preferably, the locking device includes a ratchet fixedly installed at the bottom end of the support rod, a rotating rod rotatably connected to the bottom surface of the fixed platform, and a pawl fixedly connected to the bottom end of the rotating rod; when the support rod is in the lowered position under the action of the spring, the pawl engages with the ratchet to restrict the elliptical plate from rotating in one direction.

[0011] Preferably, a coil spring is sleeved on the outer wall of the rotating rod, one end of the coil spring is fixedly connected to the outer wall of the rotating rod, and the other end is fixedly connected to the bottom surface of the fixed platform; the coil spring is used to provide a preload force to the pawl that tends to engage with the ratchet.

[0012] Preferably, the clamp includes a cylinder, a clamping arm, and a support base; the cylinder body is fixed to the top surface of the side plate or the fixed platform; the support base is fixed to the top surface of the side plate or the fixed platform, and a connecting plate is rotatably connected to the top of the support base, the connecting plate being rotatably connected to the middle of the clamping arm; the output end of the cylinder is rotatably connected to one end of the clamping arm via a pin; a rubber plate for pressing the car bracket plate is provided at the end of the clamping arm away from the cylinder.

[0013] The top surface of the side plate and the fixing platform is also provided with pads for supporting the car bracket plate.

[0014] The technical effects and advantages of this utility model are as follows: This utility model achieves simultaneous clamping of complex car bracket plates in both vertical and horizontal directions through the clamps on the fixing platform and side plate, making the fixation more comprehensive and reliable, and effectively resisting multi-directional processing stress. At the same time, through the pullable and rotatable abutment device, the operator is allowed to make quick and flexible lateral positioning adjustments according to the specific contour of the car bracket plate. One set of fixing structure can adapt to different models of car bracket plates, realizing a combination of stability and flexibility of the clamp. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the abutment device of this utility model.

[0018] Figure 4 This is a schematic diagram of the clamp structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the pawl part of this utility model.

[0020] In the diagram: 1. Fixed platform; 2. Side plate; 3. Clamp; 31. Cylinder; 32. Clamping arm; 33. Support base; 34. Connecting plate; 35. Pad; 36. Rubber plate; 4. Car bracket plate; 5. Abutting device; 51. Elliptical plate; 52. Abutting rod; 53. Support rod; 54. Bolt; 55. Spring; 56. Support plate; 57. Ratchet; 58. Rotating rod; 581. Coil spring; 59. Pawl. Detailed Implementation

[0021] 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.

[0022] This utility model provides, for example Figure 1-5 The shown is a fixing structure for processing automobile bracket plate, including a fixing table 1, a side plate 2 fixedly connected to the top surface of the fixing table 1, and a clamp 3 provided on the top surface of both the fixing table 1 and the side plate 2; the clamp 3 on the top surface of the fixing table 1 is used to press and fix the automobile bracket plate 4 in the vertical direction, and the clamp 3 on the top surface of the side plate 2 is used to press and fix the automobile bracket plate 4 in the horizontal direction.

[0023] The top surface of the fixed platform 1 is provided with multiple abutting devices 5, which are arranged around the car bracket plate 4 for horizontal positioning and support of the car bracket plate 4.

[0024] The abutting device 5 includes an elliptical plate 51 and an abutting rod 52 disposed on the top surface of the fixed platform 1, and a locking device disposed on the bottom surface of the fixed platform 1; a support rod 53 is inserted inside the elliptical plate 51, and the elliptical plate 51 is rotatably and axially movable to the fixed platform 1 through the support rod 53, and the elliptical plate 51 rotates through the central axis of the support rod 53; the abutting rod 52 is fixedly connected to one end of the elliptical plate 51 and is used to abut against the side wall of the car bracket plate 4; the locking device is used to restrict the elliptical plate 51 from rotating in one direction when the support rod 53 is in the lowered position; when the elliptical plate 51 is pulled upward and the support rod 53 is raised, the locking device is unlocked, and the elliptical plate 51 can be adjusted and rotated 360°, and after locking, only unidirectional backward rotation is allowed;

[0025] The basic platform of this utility model is a fixed platform 1, which is typically made of sturdy metal sheet to ensure overall rigidity. A side plate 2 is vertically fixed to one side of the top surface of the fixed platform 1 by welding. Clamps 3 are installed on the top surface of both the fixed platform 1 and the side plate 2. The clamps 3 on the fixed platform 1 have their pressure arms pressing down on the car bracket plate 4 to achieve vertical fixation; the clamps 3 on the side plate 2 have their pressure arms pressing down on the car bracket plate 4 from the side to achieve horizontal fixation, thus firmly constraining the car bracket plate 4 from two orthogonal directions.

[0026] To further prevent the car bracket plate 4 from moving laterally during processing, multiple abutment devices 5 are arranged on the top surface of the fixed table 1, surrounding the clamping area of ​​the car bracket plate 4. The core of each abutment device 5 is a rotatable and liftable elliptical plate 51. The elliptical plate 51 is connected to the fixed table 1 via a support rod 53, which serves as both the rotation axis of the elliptical plate 51 and allows axial movement. An abutment rod 52 is fixedly connected to one end of the elliptical plate 51. When adjustment is needed, the operator pulls the elliptical plate 51 upwards, causing the support rod 53 to rise, thereby releasing the locking device below. At this time, the elliptical plate 51 can be freely rotated to adjust the position of the abutment rod 52. After adjustment, the support rod 53 is released, and the elastic element lowers, automatically engaging the locking device to restrict the reverse rotation of the elliptical plate 51, ensuring that the abutment rod 52 stably abuts against the side wall of the car bracket plate 4, completing the lateral positioning.

[0027] This utility model achieves simultaneous vertical and horizontal clamping of complex car bracket plates 4 through the clamps 3 on the fixed platform 1 and the side plate 2, making the fixation more comprehensive and reliable, and effectively resisting multi-directional processing stress. At the same time, through the pullable and rotatable abutment device, the operator is allowed to make quick and flexible lateral positioning adjustments according to the specific contour of the car bracket plate 4. One set of fixing structure can adapt to different models of car bracket plates 4 within a certain size range, realizing a combination of stability and flexibility of the clamps 3.

[0028] like Figure 2 and Figure 3 As shown, the top end of the support rod 53 passes through the fixed platform 1 and the elliptical plate 51 in sequence. The top end of the support rod 53 is threaded with a bolt 54. The bolt 54 limits the support rod 53. The elliptical plate 51 is clamped between the bolt 54 and the top surface of the fixed platform 1, and the elliptical plate 51 can rotate around the support rod 53.

[0029] The support rod 53 is installed as follows: its top end passes through the through hole in the fixed platform 1 and the shaft hole in the center of the elliptical plate 51, and then a bolt 54 is screwed into the threaded hole at the top of the support rod 53. After tightening the bolt 54, the elliptical plate 51 is constrained between the head of the bolt 54 and the top surface of the fixed platform 1, but due to the gap in the shaft hole, the elliptical plate 51 can rotate freely around the support rod 53. At the same time, this connection method also allows the support rod 53 to move up and down axially with the elliptical plate 51 for a small range.

[0030] like Figure 2 and Figure 3 As shown, a spring 55 is sleeved on the outside of the support rod 53, and a support plate 56 is fixedly connected to the outer wall of the support rod 53. The spring 55 is located between the support plate 56 and the bottom surface of the fixed platform 1.

[0031] A support plate 56 is fixedly installed on the support rod 53, below the fixed platform 1. A spring 55 is sleeved on the outside of the support rod 53 and placed between the support plate 56 and the bottom surface of the fixed platform 1. In its natural state, the elastic force of the spring 55 acts upward on the support plate 56, thereby continuously giving the support rod 53 a downward force, keeping it in the lower limit position;

[0032] Spring 55 provides stable downward pressure, ensuring that support rod 53 and elliptical plate 51 can automatically remain in the lowered position when not in operation, thereby ensuring that the locking device can reliably engage and preventing loosening caused by misoperation.

[0033] like Figure 3As shown, the locking device includes a ratchet 57 fixedly installed at the bottom end of the support rod 53, a rotating rod 58 rotatably connected to the bottom surface of the fixed platform 1, and a pawl 59 fixedly connected to the bottom end of the rotating rod 58; when the support rod 53 is in the lowered position under the action of the spring 55, the pawl 59 engages with the ratchet 57 to restrict the elliptical plate 51 from rotating in one direction.

[0034] The locking device is specifically configured as follows: a ratchet 57 is fixedly mounted on the bottom end of the support rod 53. A pawl 59, capable of engaging the ratchet 57, is mounted on the bottom surface of the fixed platform 1 via a rotating rod 58. When the support rod 53 is in the lowered position under the action of the spring 55, the pawl 59, under its own weight and the action of an additional elastic element, engages in the tooth groove of the ratchet 57. At this time, if an attempt is made to rotate the elliptical plate 51 in the reverse direction, the pawl 59 will lock the ratchet 57, preventing its rotation. When the support rod 53 is lifted, the ratchet 57 rises accordingly and disengages from the pawl 59, thus releasing the lock.

[0035] like Figure 5 As shown, a coil spring 581 is sleeved on the outer wall of the rotating rod 58. One end of the coil spring 581 is fixedly connected to the outer wall of the rotating rod 58, and the other end is fixedly connected to the bottom surface of the fixed platform 1. The coil spring 581 is used to provide a preload force to the pawl 59 that tends to engage with the ratchet 57.

[0036] To ensure that the pawl 59 always reliably contacts the ratchet 57, a coil spring 581 is fitted onto the rotating rod 58. One end of the coil spring 581 is fixed to the rotating rod 58, and the other end is fixed to the bottom surface of the fixed platform 1. The coil spring 581 is pre-tensioned, and the torque it generates drives the rotating rod 58 to rotate, thereby applying a continuous pressure force on the pawl 59 towards the ratchet 57.

[0037] like Figure 4 As shown, the clamp 3 includes a cylinder 31, a clamping arm 32, and a support base 33; the cylinder body of the cylinder 31 is fixed to the top surface of the side plate 2 or the fixed platform 1; the support base 33 is fixed to the top surface of the side plate 2 or the fixed platform 1, and a connecting plate 34 is rotatably connected to the top of the support base 33, and the connecting plate 34 is rotatably connected to the middle of the clamping arm 32; the output end of the cylinder 31 is rotatably connected to one end of the clamping arm 32 through a pin; a rubber plate 36 for pressing the car bracket plate 4 is provided at the end of the clamping arm 32 away from the cylinder 31.

[0038] The top surfaces of the side plate 2 and the fixing platform 1 are also provided with pads 35 for supporting the car bracket plate 4;

[0039] The clamp 3 has a specific structure where a cylinder 31 serves as the power source, with its cylinder body fixed to the top surface of the fixed platform 1 or side plate 2. A support base 33 is also fixed to the corresponding platform. The top of the support base 33 is hinged to the middle of the clamping arm 32 via a connecting plate 34, forming a lever fulcrum. The piston rod output end of the cylinder 31 is hinged to one end of the clamping arm 32 via a pin. When the cylinder 31 actuates, its piston rod extends or retracts, driving the clamping arm 32 to rotate around the fulcrum, thereby causing the rubber plate 36 at the other end of the clamping arm 32 to press against or move away from the car bracket plate 4. The rubber plate 36 prevents the metal clamping arm 32 from directly contacting the surface of the car bracket plate 4, preventing scratches; the pad 35 supports the car bracket plate 4 to prevent deformation of the car bracket plate 4 during clamping. A pad 35 is provided below the car bracket plate 4 to support the car bracket plate 4, preventing the car bracket plate 4 from directly rubbing against the platform, while ensuring that the clamping force is evenly distributed.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing structure for processing automotive bracket plates, comprising a fixing table (1), characterized in that: The top surface of the fixed platform (1) is fixedly connected to a side plate (2), and the top surfaces of both the fixed platform (1) and the side plate (2) are provided with clamps (3); the clamps (3) on the top surface of the fixed platform (1) are used to press and fix the car bracket plate (4) in the vertical direction, and the clamps (3) on the top surface of the side plate (2) are used to press and fix the car bracket plate (4) in the horizontal direction. The top surface of the fixed platform (1) is provided with a plurality of abutting devices (5), which are arranged around the car bracket plate (4) for positioning and supporting the car bracket plate (4) in the horizontal direction. The abutting device (5) includes an elliptical plate (51) and an abutting rod (52) disposed on the top surface of the fixed platform (1), and a locking device disposed on the bottom surface of the fixed platform (1); a support rod (53) is inserted inside the elliptical plate (51), and the elliptical plate (51) is rotatably and axially movable to the fixed platform (1) through the support rod (53), and the elliptical plate (51) rotates through the central axis of the support rod (53); the abutting rod (52) is fixedly connected to one end of the elliptical plate (51) and is used to abut against the side wall of the car bracket plate (4); the locking device is used to restrict the elliptical plate (51) from rotating in one direction when the support rod (53) is in the lowered position; when the elliptical plate (51) is pulled upward and the support rod (53) is driven to rise, the locking device is unlocked, and the elliptical plate (51) can rotate in any direction.

2. The fixing structure for processing automotive bracket plates according to claim 1, characterized in that: The top end of the support rod (53) passes through the fixed platform (1) and the elliptical plate (51) in sequence. The top end of the support rod (53) is threaded with a bolt (54). The bolt (54) limits the support rod (53). The elliptical plate (51) is clamped between the bolt (54) and the top surface of the fixed platform (1), and the elliptical plate (51) can rotate around the support rod (53).

3. The fixing structure for processing automotive bracket plates according to claim 1, characterized in that: A spring (55) is sleeved on the outside of the support rod (53), and a support plate (56) is fixedly connected to the outer wall of the support rod (53). The spring (55) is located between the support plate (56) and the bottom surface of the fixed platform (1).

4. The fixing structure for processing automotive bracket plates according to claim 1, characterized in that: The locking device includes a ratchet (57) fixedly installed at the bottom end of the support rod (53), and a rotating rod (58) rotatably connected to the bottom surface of the fixed platform (1). A pawl (59) is fixedly connected to the bottom end of the rotating rod (58). When the support rod (53) is in the lowered position under the action of the spring (55), the pawl (59) engages with the ratchet (57) to restrict the unidirectional rotation of the elliptical plate (51).

5. The fixing structure for processing automotive bracket plates according to claim 4, characterized in that: A coil spring (581) is sleeved on the outer wall of the rotating rod (58). One end of the coil spring (581) is fixedly connected to the outer wall of the rotating rod (58), and the other end is fixedly connected to the bottom surface of the fixed platform (1). The coil spring (581) is used to provide a preload force to the pawl (59) to tend to engage with the ratchet (57).

6. The fixing structure for processing automotive bracket plates according to claim 1, characterized in that: The clamp (3) includes a cylinder (31), a clamping arm (32), and a support base (33); the cylinder (31) is fixed to the top surface of the side plate (2) or the fixed platform (1); the support base (33) is fixed to the top surface of the side plate (2) or the fixed platform (1), and a connecting plate (34) is rotatably connected to the top of the support base (33), and the connecting plate (34) is rotatably connected to the middle of the clamping arm (32); the output end of the cylinder (31) is rotatably connected to one end of the clamping arm (32) through a pin; a rubber plate (36) for pressing the car bracket plate (4) is provided at the end of the clamping arm (32) away from the cylinder (31). The top surfaces of the side plate (2) and the fixed platform (1) are also provided with pads (35) for supporting the car bracket plate (4).

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