Back wheel left and right support base press-fitting tool

Abstract

The utility model provides a rear wheel left and right support base press -fitting frock relates to press -fitting frock field, including frock main part, the fixed installation of positioning bottom plate is in the frock main part middle, the symmetric installation of two inverted L shape guide rails has in positioning bottom plate top, the rear end of guide rail is closed, the top sliding connection of guide rail has press -fitting subassembly, the fixed installation of fixed plate has in press -fitting subassembly top, the fixed installation of press -fitting hydraulic cylinder has in guide rail rear side wall, the fixed installation of fixed hydraulic cylinder has in frock main part top lower end surface middle, this rear wheel left and right support base press -fitting frock is through the inverted L shape sliding groove of press -fitting sliding block and guide rail accurate cooperation, promotes the moving direction precision, the arc base adaptation round press -fitting top block is convenient for positioning, the fixed seat of fixed hydraulic cylinder drive and the corresponding up and down of positioning seat, the arc fixed groove and positioning groove form three -dimensional limit, effectively prevent workpiece press -fitting when warping, shift, ensure press -fitting position accurate, to solve the problem of unstable direction, slider deviation, top block easy shift.

Description

Technical Field

[0001] This utility model relates to the field of press-fitting tooling technology, and in particular to a press-fitting tooling for the left and right rear wheel bracket bases. Background Technology

[0002] In the production of automotive parts, the pressing process of the left and right rear wheel bracket bases is a crucial step. Existing pressing tooling for the left and right rear wheel bracket bases lacks adequate guidance and safety performance. The guide rails of the pressing components are mostly ordinary straight rail designs, which cannot achieve stable guidance and lack stroke limiting mechanisms. This makes the pressing components prone to slippage during movement. In addition, the hydraulic power supply components and actuators have poor matching, making it difficult to provide stable power, which further reduces the safety and reliability of the operation. At the same time, the pressing accuracy and adaptability are low, the gap between the pressing slider and the guide rail is large, and it is easy to deviate during movement. The pressing top block lacks an adaptable positioning structure and a stable clamping measure, which makes it easy to shift or fall off during use. Moreover, the top block is mostly a rigid structure, which can easily cause damage when in contact with the workpiece. Utility Model Content

[0003] This utility model relates to a pressing fixture for the left and right rear wheel bracket bases, in order to solve the problems mentioned in the background art, such as poor guiding safety, difficulty in stable guiding of the guide rail, easy slippage due to lack of stroke limit, unstable hydraulic power, low precision fitting, easy deviation of the slider, easy displacement of the top block damaging the workpiece, and poor workpiece fixation making it difficult to fit, resulting in poor pressing quality and low efficiency.

[0004] This utility model provides a rear wheel left and right bracket base press-fit fixture, specifically including: a fixture body; a positioning base plate is fixedly installed in the middle of the fixture body, two inverted "L"-shaped guide rails are symmetrically installed on the top of the positioning base plate, the rear end of the guide rails is closed, a press-fit assembly is slidably connected to the top of the guide rails, a fixing plate is fixedly installed on the top of the press-fit assembly, a press-fit hydraulic cylinder is fixedly installed on the rear side wall of the guide rails, and a fixing hydraulic cylinder is fixedly installed in the middle of the top lower end face of the fixture body.

[0005] Furthermore, a fixed crossbeam is fixedly connected to the middle of the front and rear side walls of the tooling body, a hydraulic pump is fixedly installed on the right side of the fixed crossbeam, and two plate-shaped support feet are symmetrically provided at the bottom of the tooling body.

[0006] Furthermore, a fixing block is fixedly connected to the front side of the bottom end face of the positioning base plate. The fixing block is inserted between the fixing crossbeams on the front and rear sides of the tooling body and is connected by a fixing rod. A positioning seat is fixedly installed on the front side of the top of the guide rail. An arc-shaped positioning groove is opened in the middle of the top end face of the positioning seat.

[0007] Furthermore, the pressing assembly includes a pressing slider, a pressing top block, and a fixing plate. The bottom of the front and rear side walls of the pressing slider has two inverted "L"-shaped through sliding grooves that are symmetrically opened. The sliding grooves are slidably connected to the outside of the guide rail. The middle of the rear side wall of the pressing slider is connected to the telescopic front end of the pressing hydraulic cylinder. An arc-shaped base is provided on the front side of the top of the pressing slider, and a circular pressing top block is placed on the base.

[0008] Furthermore, the fixing plate is bolted to the upper end face of the pressing slider of the pressing assembly, and the middle part of the fixing plate is arc-shaped and presses against the upper part of the pressing top block of the pressing assembly.

[0009] Furthermore, a fixed seat is fixedly connected to the bottom of the telescopic end of the fixed hydraulic cylinder. The position of the fixed seat matches the position of the positioning seat on the positioning base plate. An arc-shaped fixing groove is opened in the middle of the bottom end face of the fixed seat, and the fixing groove matches the positioning groove on the top of the positioning seat.

[0010] This utility model provides a pressing fixture for the left and right rear wheel bracket bases, which has the following advantages: 1. The main body of the tooling serves as a unified installation carrier, and is equipped with a fixed crossbeam to enhance the overall structural strength, effectively preventing deformation under pressure during pressing. The support feet increase the contact area with the ground, reducing pressing vibration and ensuring the tooling is placed stably. The positioning base plate is locked by the insertion and connection of the fixed block and the fixed crossbeam and the through-hole locking of the fixed rod to prevent displacement under force and ensure the stability of the positioning reference. The inverted "L"-shaped guide rail not only enables the smooth movement of the pressing components, but also limits the stroke and prevents slippage with the closed structure at the rear end. At the same time, the hydraulic pump provides stable power to the pressing hydraulic cylinder and the fixed hydraulic cylinder, comprehensively ensuring the safety and reliability of the operation.

[0011] 2. In the press-fit assembly, the inverted "L"-shaped sliding groove of the press-fit slider precisely matches the guide rail, improving the accuracy of movement guidance. The arc-shaped base adapts to the circular press-fit top block for easy positioning. The fixing plate tightens the top block with bolts to prevent displacement and detachment. The circular top block also reduces rigid impact and avoids workpiece damage. The fixed seat driven by the fixed hydraulic cylinder corresponds vertically to the positioning seat. The arc-shaped fixing groove and the positioning groove form a three-dimensional limit, effectively preventing the workpiece from warping or shifting during press-fitting, ensuring accurate press-fitting position. At the same time, the press-fitting hydraulic cylinder can flexibly adjust the press-fitting position to adapt to different workpiece requirements, further improving the accuracy and consistency of press-fitting operations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0013] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model; Figure 2 This is a top view of the left rear side of the present invention. Figure 3 This is a schematic diagram of the overall disassembled front structure of this utility model; Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 5 This is a schematic diagram of the positioning base plate and pressing assembly structure of this utility model; Figure 6 This is a top-view structural diagram showing the disassembled main body and positioning base plate of the tooling of this utility model.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Fixture body; 101. Fixed crossbeam; 102. Support leg; 2. Hydraulic pump; 3. Positioning base plate; 301. Fixing block; 302. Guide rail; 303. Positioning seat; 304. Positioning groove; 4. Fixing rod; 5. Pressing slider; 501. Sliding groove; 502. Base; 6. Pressing top block; 7. Fixing plate; 8. Pressing hydraulic cylinder; 9. Fixed hydraulic cylinder; 901. Fixing seat; 902. Fixing groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a rear wheel left and right bracket base press-fit fixture, including: a fixture body 1, a positioning base plate 3 fixedly installed in the middle of the fixture body 1, two inverted "L"-shaped guide rails 302 symmetrically installed on the top of the positioning base plate 3, the rear end of the guide rails 302 being closed, a press-fit assembly slidably connected to the top of the guide rails 302, a fixing plate 7 fixedly installed on the top of the press-fit assembly, a press-fit hydraulic cylinder 8 fixedly installed on the rear side wall of the guide rails 302, a fixing hydraulic cylinder 9 fixedly installed in the middle of the lower top surface of the fixture body 1, a fixing crossbeam 101 fixedly connected in the middle of the front and rear side walls of the fixture body 1, a hydraulic pump 2 fixedly installed on the right side of the fixing crossbeam 101, and two plate-shaped support feet 102 symmetrically provided at the bottom of the fixture body 1. Specifically, the fixture body 1 serves as the overall installation carrier, providing a stable assembly foundation for various functional components, and the positioning base plate 3 serves as the guide rails 302. 02. The positioning structure and pressing components provide a unified installation benchmark to ensure the relative position accuracy of each component. The inverted "L"-shaped guide rail 302 slides with the pressing components, which not only realizes the smooth guiding movement of the pressing components, but also limits its sliding stroke through the rear closed structure to prevent the pressing components from slipping and improve the operational safety. The pressing hydraulic cylinder 8 provides power for the forward and backward movement of the pressing components and can flexibly adjust the pressing position to adapt to the pressing requirements of the workpiece. The fixed hydraulic cylinder 9 can apply a fixing force to the workpiece from the top and form a cooperative positioning with the positioning structure below. The fixed crossbeam 101 enhances the overall structural strength of the fixture body 1 and avoids deformation due to force during pressing. The hydraulic pump 2 provides stable hydraulic power to the pressing hydraulic cylinder 8 and the fixed hydraulic cylinder 9 to ensure drive reliability. The support foot 102 increases the contact area between the fixture and the ground, reduces vibration during the pressing process, and ensures that the fixture is placed stably.

[0018] The positioning base plate 3 has a fixed block 301 fixedly connected to the front side of its bottom end face. The fixed block 301 is inserted between the fixed crossbeams 101 on the front and rear sides of the tooling body 1 and is connected by the fixed rod 4. The top front side of the guide rail 302 has a fixed positioning seat 303. The top end face of the positioning seat 303 has an arc-shaped positioning groove 304. Specifically, the insertion and engagement of the fixed block 301 with the fixed crossbeam 101 and the through connection of the fixed rod 4 can firmly lock the positioning base plate 3 on the tooling body 1, preventing the positioning base plate 3 from shifting due to force during pressing and ensuring the stability of the positioning reference. The arc-shaped positioning groove 304 on the top of the positioning seat 303 is adapted to the bottom arc-shaped structure of the rear wheel left and right support base, which can perform preliminary positioning of the workpiece, restrict the left and right movement and front and back offset of the workpiece, and lay the positioning foundation for the precise operation of the subsequent pressing components.

[0019] The pressing assembly includes a pressing slider 5, a pressing top block 6, and a fixing plate 7. Two inverted "L"-shaped through-hole sliding grooves 501 are symmetrically opened at the bottom of the front and rear side walls of the pressing slider 5. The sliding grooves 501 are slidably connected to the outside of the guide rail 302. The middle of the rear side wall of the pressing slider 5 is connected to the telescopic front end of the pressing hydraulic cylinder 8. An arc-shaped base 502 is opened on the front top of the pressing slider 5, and a circular pressing top block 6 is placed on the base 502. The fixing plate 7 is bolted to the upper surface of the pressing slider 5 of the pressing assembly. The middle of the fixing plate 7 is arc-shaped and presses against the upper part of the pressing top block 6 of the pressing assembly. Specifically, the inverted "L"-shaped... The sliding engagement between the sliding groove 501 and the guide rail 302 further improves the guiding accuracy and stability of the pressing assembly movement, preventing deviation during pressing. The pressing slider 5 is connected to the pressing hydraulic cylinder 8, which can drive the pressing top block 6 forward under hydraulic drive to achieve precise pressure on the part of the workpiece to be pressed. The arc-shaped base 502 is adapted to the shape of the circular pressing top block 6, which facilitates the quick positioning and placement of the pressing top block 6. The fixing plate 7 is fixed by bolts and presses the pressing top block 6 with an arc structure, which can prevent the top block from shifting or falling off during pressing. At the same time, the circular pressing top block 6 can form flexible contact with the part of the workpiece to be pressed, reducing workpiece damage caused by rigid impact and improving pressing quality.

[0020] The fixed hydraulic cylinder 9 has a fixed base 901 fixedly connected to the bottom of its telescopic end. The position of the fixed base 901 matches the position of the positioning base 303 of the positioning base plate 3. An arc-shaped fixing groove 902 is opened in the middle of the bottom end face of the fixed base 901. The fixing groove 902 matches the positioning groove 304 on the top of the positioning base 303. Specifically, the fixed hydraulic cylinder 9 drives the fixed base 901 to move up and down. When the fixed base 901 descends, the arc-shaped fixing groove 902 at its bottom and the positioning groove 304 of the positioning base 303 form a vertically corresponding engagement, applying a clamping force from the top of the workpiece. Together with the positioning groove 304 below, the workpiece is three-dimensionally limited, effectively preventing the workpiece from warping or shifting due to force during the pressing process, ensuring the accuracy of the pressing position, and improving the consistency of pressing.

[0021] The specific usage and function of this embodiment are as follows: When using the rear wheel left and right bracket base pressing fixture, first place the rear wheel left and right bracket base in the arc-shaped positioning groove 304 on the top of the positioning seat 303 to complete the initial positioning. Then, start the fixed hydraulic cylinder 9, so that its extension end drives the fixed seat 901 to descend. Using the arc-shaped fixing groove 902 at the bottom of the fixed seat 901 that matches the positioning groove 304, apply a pressing force to the workpiece from the top. Cooperate with the positioning groove 304 to realize the three-dimensional limitation of the workpiece. Then, the hydraulic pump 2 supplies power to the pressing hydraulic cylinder 8. The pressing hydraulic cylinder 8 pushes the pressing slider 5 to slide forward along the inverted "L"-shaped guide rail 302, so that the circular pressing top block 6 on the pressing slider 5, which is pressed by the fixing plate 7, moves towards the part of the workpiece to be pressed and applies precise pressure to complete the pressing operation. After the pressing is completed, first control the fixed hydraulic cylinder 9 to drive the fixed seat 901 to rise and reset, then control the pressing hydraulic cylinder 8 to drive the pressing slider 5 to slide backward along the guide rail 302 and reset. Finally, take out the pressed workpiece.

[0022] Example 2: The positioning seat 303 on the positioning base plate 3 is changed to a quick-release connection structure of "T-slot + bolt". A T-shaped mounting slot is opened on the top of the positioning base plate 3, and a T-shaped protrusion that matches the T-shaped mounting slot is set at the bottom of the positioning seat 303. After the T-shaped protrusion is inserted into the T-shaped mounting slot, it is locked by the fastening bolt on the side. The quick-release structure allows for quick replacement of positioning seats 303 with different positioning structures, enabling the tooling to adapt to the positioning requirements of various specifications of rear wheel left and right bracket bases and improving the versatility of the tooling.

Claims

1. A pressing fixture for the left and right rear wheel bracket bases, characterized in that, The fixture includes a main body (1); a positioning base plate (3) is fixedly installed in the middle of the main body (1), and two inverted "L"-shaped guide rails (302) are symmetrically installed on the top of the positioning base plate (3). The rear end of the guide rails (302) is closed. A pressing assembly is slidably connected to the top of the guide rails (302). A fixing plate (7) is fixedly installed on the top of the pressing assembly. A pressing hydraulic cylinder (8) is fixedly installed on the rear side wall of the guide rails (302). A fixing hydraulic cylinder (9) is fixedly installed in the middle of the lower top surface of the main body (1).

2. The rear wheel left and right bracket base press-fitting fixture according to claim 1, characterized in that, A fixed crossbeam (101) is fixedly connected to the middle of the front and rear side walls of the tooling body (1). A hydraulic pump (2) is fixedly installed on the right side of the fixed crossbeam (101). Two plate-shaped support feet (102) are symmetrically provided at the bottom of the tooling body (1).

3. The rear wheel left and right bracket base press-fitting fixture according to claim 1, characterized in that, A fixing block (301) is fixedly connected to the front side of the bottom end of the positioning base plate (3). The fixing block (301) is inserted between the fixing crossbeams (101) on the front and rear sides of the tooling body (1) and is connected by the fixing rod (4). A positioning seat (303) is fixedly installed on the front side of the top of the guide rail (302). An arc-shaped positioning groove (304) is opened in the middle of the top end face of the positioning seat (303).

4. The rear wheel left and right bracket base press-fitting fixture according to claim 1, characterized in that, The pressing assembly includes a pressing slider (5), a pressing top block (6), and a fixing plate (7). The bottom of the front and rear side walls of the pressing slider (5) are symmetrically provided with two inverted "L"-shaped through sliding grooves (501). The sliding grooves (501) are slidably connected to the outside of the guide rail (302). The middle of the rear side wall of the pressing slider (5) is connected to the telescopic front end of the pressing hydraulic cylinder (8). An arc-shaped base (502) is provided on the front side of the top of the pressing slider (5). A circular pressing top block (6) is placed on the base (502).

5. The rear wheel left and right bracket base press-fitting fixture according to claim 1, characterized in that, The fixing plate (7) is installed on the upper end face of the pressing slider (5) of the pressing assembly by bolts. The middle part of the fixing plate (7) is arc-shaped and presses against the upper part of the pressing top block (6) of the pressing assembly.

6. The rear wheel left and right bracket base press-fitting fixture according to claim 1, characterized in that, The bottom of the telescopic end of the fixed hydraulic cylinder (9) is fixedly connected to a fixed seat (901). The position of the fixed seat (901) matches the position of the positioning seat (303) of the positioning base plate (3). An arc-shaped fixing groove (902) is opened in the middle of the bottom end face of the fixed seat (901). The fixing groove (902) matches the positioning groove (304) on the top of the positioning seat (303).

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