Flanging machine for shock absorber

Abstract

The utility model provides a shock absorber flanging machine, which belongs to the technical field of shock absorber production and comprises a product tool which comprises a supporting mechanism used for supporting a shock absorber to be flanged and a clamping mechanism used for clamping the shock absorber. The clamping mechanism comprises a centering base, two clamping jaw seats which are oppositely and fixedly arranged on the centering base, and guide clamping jaw heads which are movably arranged on the inner sides of the clamping jaw seats and are used for clamping the outer wall of the shock absorber; the carrying mechanism comprises a carrying base plate, a rolling assembly arranged at the bottom of the carrying base plate and a first driving assembly used for driving the carrying base plate to vertically move; according to the scheme that a workpiece does not move, and the hemming wheel in the flanging machine rotates at a high speed, the problem that the rotation center of the shock absorber is unstable in the flanging process is solved, meanwhile, the clamping mechanism is used for adaptively adjusting the position of the shock absorber arranged on the inner side of the guide clamping jaw head, and therefore the shock absorber can be conveniently and rapidly flanged. The clamping stability and precision of the shock absorber are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorber production, in particular to a shock absorber flanging machine. Background Art

[0002] Shock absorbers are primarily used to dampen oscillations caused by spring rebound after absorbing vibrations, as well as impacts from the road. They are widely used in transportation vehicles such as railways and automobiles. Shock absorbers primarily consist of a cylindrical outer and inner cylinder assembly. The inner cylinder assembly includes the inner cylinder, a base valve, a piston connecting rod, a guide, and a seal. The piston connecting rod is sealed to the oil chamber by a seal. During the shock absorber manufacturing process, after the inner cylinder assembly is installed inside the outer cylinder, the upper edge of the shock absorber outer cylinder is rolled and pressed against the seal to achieve a good seal.

[0003] In existing solutions, the flanging machine used for shock absorbers is usually a workpiece rotating flanging machine. During the flanging process, the flanging wheel of the rolling assembly in the flanging machine does not rotate, while the shock absorber to be flanged rotates at high speed. This solution for the position of the flanging wheel and the workpiece is limited by the external shape of the shock absorber, which can easily cause an unstable center of rotation, affecting the flanging quality of the shock absorber outer cylinder. In order to solve the aforementioned problem, the existing technology has developed a solution in which the workpiece does not rotate and the flanging wheel in the flanging machine rotates at high speed. This solution can solve the problem of unstable center of rotation of the shock absorber, but is also limited by the external shape of the shock absorber. The flanging wheel will exert a force on the side wall of the shock absorber outer cylinder during high-speed rotation. The existence of this force places high demands on the positioning stability and positioning accuracy of the shock absorber. The existing technology uses a cylinder to drive the relative movement of the two-way clamp to achieve the positioning of the shock absorber, which has the problems of poor clamping flexibility, poor adaptability, and unsatisfactory adjustment convenience. Utility Model Content

[0004] The utility model provides a shock absorber flanging machine, which adopts a solution in which a workpiece does not move and a curling wheel in the flanging machine performs high-speed rotational motion, so as to solve the problem of unstable rotation center of the shock absorber during the flanging process. At the same time, a clamping mechanism is used to adaptively adjust the position of the shock absorber on the inner side of the guide clamping claw head, so as to improve the stability and accuracy of the shock absorber clamping.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A shock absorber flanging machine, comprising:

[0007] Product tooling, the product tooling comprising a support mechanism for supporting the shock absorber to be flanging and a clamping mechanism for clamping the shock absorber, the clamping mechanism comprising a centering base, two clamping jaws fixedly mounted on the centering base, and a guide clamping jaw head movably mounted on the inner side of the clamping jaws for clamping the outer wall of the shock absorber; and

[0008] The transport mechanism includes a transport base, a rolling assembly arranged at the bottom of the transport base, a first drive assembly for driving the transport base to move vertically, a second drive assembly for driving the curling wheel of the rolling assembly to flip to perform curling action, and a rotation drive assembly for driving the rolling assembly to rotate circumferentially along the outer wall of the shock absorber.

[0009] Preferably, a pre-pressing device is provided between the clamping jaw seat and the guide clamping jaw head, and the guide clamping jaw head is connected to the clamping jaw seat via a guide bushing.

[0010] Preferably, the supporting mechanism includes a supporting base and a workpiece seat arranged on the supporting base.

[0011] Preferably, the support mechanism further includes a mold changing component, which includes a pin for fixing the workpiece seat to the support base, a first pressure sensor arranged between the workpiece seat and the support base, and an optical fiber sensing device arranged on the top of the support base.

[0012] Preferably, the product tooling also includes a lifting mechanism for adjusting the height of the clamping mechanism, and the lifting mechanism includes a lifting drive motor, a gear box arranged on the output shaft of the lifting drive motor, a lifting screw arranged at the output end of the gear box and distributed vertically, and a lifting platform arranged on the outer wall of the lifting screw for installing the clamping mechanism.

[0013] Preferably, the rolling assembly further comprises a plurality of supporting wheels, and during the curling process, the supporting wheels together with the curling wheels abut against the outer wall of the shock absorber.

[0014] Preferably, the shock absorber flanging machine further comprises an outer box body, wherein a plurality of vertically parallel distributed columns are provided in the outer box body, and the first driving assembly is a hydraulic cylinder for driving the carrying base plate to move vertically along the columns.

[0015] Preferably, the curling wheel is connected to a flip toggle, and the second driving component is used to drive the flip toggle to rotate to drive the curling wheel to flip, and the second driving component is a flanging cylinder arranged on the carrying base plate.

[0016] Preferably, the rotary drive assembly includes a rotary motor, an input shaft flange provided on the rolling assembly, and a transmission belt connected between the output shaft of the rotary motor and the input shaft flange.

[0017] Preferably, the shock absorber flanging machine further includes a displacement sensor for detecting the displacement of the rolling assembly.

[0018] It can be seen from the above technical scheme that the utility model has the following beneficial effects: In the utility model, the workpiece is not rotated, and the curling wheel in the flanging machine is used for high-speed rotation. This solution can solve the problem of unstable rotation center of the shock absorber during flanging, and avoid affecting the flanging quality of the outer cylinder of the shock absorber. Specifically, when in use, the shock absorber to be flanging is placed in the supporting mechanism and positioned and fixed by the clamping mechanism. The outer wall of the shock absorber is clamped by two guide clamping heads on the inner side of the clamping jaw seat. Since the guide clamping jaw head is movably connected to the clamping jaw seat, the position of the shock absorber on the inner side of the guide clamping jaw head can be adaptively adjusted, thereby improving the stability and precision of clamping the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 for Figure 1 lateral schematic diagram of ;

[0021] Figure 3 It is a front view of the clamping mechanism;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure of the AA section;

[0023] Figure 5 It is a structural diagram of the supporting mechanism;

[0024] Figure 6 for Figure 5 Schematic diagram of the structure of the middle BB section;

[0025] Figure 7 for Figure 6 A partial enlarged view of part A;

[0026] Figure 8 It is a structural diagram of the connection between the supporting mechanism and the clamping mechanism;

[0027] Figure 9 A schematic diagram of the structure connecting the lifting mechanism, the clamping mechanism and the supporting mechanism;

[0028] Figure 10 A schematic diagram of the structure of the connection between the rolling assembly and the rotary drive assembly;

[0029] Figure 11 for Figure 10 Schematic diagram of the lateral structure;

[0030] Figure 12 for Figure 10 Bottom view of .

[0031] In the figure: 10, product tooling; 110, support mechanism; 111, support base; 112, workpiece base; 113, latch; 114, first pressure sensor; 115, optical fiber sensing device; 120, clamping mechanism; 121, centering base; 122, clamping jaw seat; 123, guide clamping jaw head; 124, pre-pressing device; 125, guide bushing; 130, lifting mechanism; 131, lifting drive motor; 132 , gearbox; 133, lifting screw; 134, lifting platform; 210, carrying substrate; 220, rolling assembly; 221, curling wheel; 222, supporting wheel; 230, hydraulic cylinder; 250, rotation drive assembly; 251, rotating motor; 252, input shaft flange; 253, transmission belt; 260, flip elbow; 270, flanging cylinder; 30, outer box; 310, column; 40, displacement sensor. DETAILED DESCRIPTION

[0032] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical solutions: Figure 1 、 Figure 2 、 Figure 3, a shock absorber flanging machine, including a product tooling 10 and a carrying mechanism, wherein the product tooling includes a supporting mechanism 110 and a clamping mechanism 120, specifically, the supporting mechanism 120 is used to support the shock absorber to be flanging, and the clamping mechanism is used to clamp the shock absorber to be flanging, further, the clamping mechanism includes a centering base 121, a clamping claw seat 122 and a guide clamping claw head 123, the number of the clamping claw seats 122 is two, and the two clamping claw seats 122 are relatively fixed on the centering base, the guide clamping claw head 123 is movably arranged on the inner side of the clamping claw seat, and the guide clamping claw head 123 is used to clamp the shock absorber from the outer wall of the shock absorber, at the same time, the carrying mechanism includes a carrying base plate 210, a rolling assembly 220, a first drive assembly, a second drive assembly and a rotating drive assembly 250, and the rolling assembly is arranged at the bottom of the carrying base plate The first driving assembly is used to drive the carrier substrate to move vertically, the second driving assembly is used to drive the curling wheel 221 of the rolling assembly to flip to perform curling action, and the rotation driving assembly is used to drive the rolling assembly to rotate circumferentially along the outer wall of the shock absorber. This embodiment adopts a solution in which the workpiece does not rotate and the curling wheel in the flanging machine is used to perform high-speed rotation. This can solve the problem of unstable rotation center of the shock absorber during flanging, and avoid affecting the flanging quality of the outer cylinder of the shock absorber. Specifically, when in use, the shock absorber to be flanged is placed in the supporting mechanism and positioned and fixed by the clamping mechanism, and the outer wall of the shock absorber is clamped by two guide clamping claw heads on the inner side of the clamping claw seat. Since the guide clamping claw head is movably connected to the clamping claw seat, the position of the shock absorber on the inner side of the guide clamping claw head can be adaptively adjusted, thereby improving the stability and accuracy of the shock absorber clamping.

[0034] In some embodiments, the shock absorber flanging machine also includes an outer box body 30, which is provided with a number of vertically parallel columns 310. In this embodiment, there are four columns, and the four columns form a frame structure inside the outer box body. The moving parts involved in the shock absorber flanging machine are arranged on the outer wall of the column. The rigidity of the equipment and the stability and good centering of the up and down movement of each moving part are ensured by the guidance of the column.

[0035] Reference Figure 4Furthermore, a pre-pressing device 124 is provided between the clamping jaw seat 122 and the guide clamping jaw head 123. At the same time, the guide clamping jaw head is also connected to the clamping jaw seat 122 through a guide bushing 125. Specifically in this embodiment, the pre-pressing device 124 is a compression spring. When in use, the guide clamping jaw head 123 is connected to the clamping jaw seat 122 through the guide bushing 125. Since a compression spring is installed between the guide clamping jaw head 123 and the clamping jaw seat 122, the guide clamping jaw head 123 and the clamping jaw seat 122 are in a separated state under the action of the compression spring. When the staff places the workpiece inside the guide clamping jaw heads 123 on both sides, the compression spring is contracted by external force, and the guide clamping jaw heads 123 on both sides are separated and clamped under the elastic force of the compression spring, thereby pre-pressing the workpiece.

[0036] Under the pre-tensioning action of the compression spring, the positioning position of the workpiece can be adaptively adjusted. In this way, not only can the workpiece to be clamped be adjusted to a better position, but it can also adapt to the clamping requirements of different workpieces. Therefore, the shock absorber flanging machine provided in this embodiment has the advantages of high clamping flexibility, strong adaptability and convenient adjustment.

[0037] Reference Figure 5 、 Figure 6 、 Figure 8 Furthermore, the support mechanism includes a support base 111 and a workpiece seat 112 arranged on the support base. It should be noted that the support base 111 is arranged on the aforementioned column, and the support base can be moved vertically along the column so that the support mechanism can adaptively adjust the support position of the shock absorber. It should be emphasized that after the support base moves along the column 310, it can be fixed by corresponding fixing parts, such as positioning pins and locking bolts.

[0038] Reference Figure 7 In some embodiments, the support mechanism further includes a mold-changing component, which includes a latch 113, a first pressure sensor 114, and an optical fiber sensing device 115. The latch 113 is used to fix the workpiece seat 112 on the top of the support base 111. The first pressure sensor 114 is arranged between the workpiece seat and the support base. Specifically, the first pressure sensor is arranged between the top of the support base and the bottom of the workpiece seat. The optical fiber sensing device 115 is arranged on the top of the support base 111. When in use, the workpiece seat 112 is placed on the top of the support base 111. The first pressure sensor can detect the magnitude of the force applied by the workpiece seat to the support base, that is, the first pressure sensor is used to sense the magnitude of the preload force applied by the rolling assembly to the shock absorber seal to be curled. At the same time, the optical fiber sensing device can sense the position information of the workpiece seat. After the workpiece seat is placed, the workpiece seat is fixed using the latch. When the workpiece seat 112 needs to be replaced, the workpiece seat 112 to be replaced can be fixed on the support base 111 by removing the latch.

[0039] Reference Figure 9 In other embodiments, the product tooling also includes a lifting mechanism 130 for adjusting the height of the clamping mechanism, and the lifting mechanism 130 includes a lifting drive motor 131, a gear box 132, a lifting screw 133 and a lifting platform 134. The gear box 132 is arranged on the output shaft of the lifting drive motor, the lifting screw 133 is arranged at the output end of the gear box, and the lifting screw is distributed in the vertical direction. The lifting platform 134 is arranged on the outer wall of the lifting screw. It should be noted that a screw nut that cooperates with the lifting platform is provided inside the lifting platform. At the same time, the lifting platform is used to install the clamping mechanism. When in use, when the lifting drive motor is working, the power is transmitted to the gear box, and the gear box then drives the lifting screw to rotate. Since the lifting platform is threadedly connected to the lifting screw, when the lifting screw rotates, it can drive the lifting platform to perform vertical lifting movement to adjust the height of the clamping mechanism on the lifting platform. Therefore, when shock absorbers of different sizes need to be processed, the height of the clamping mechanism can be adjusted as needed to meet different working conditions.

[0040] Further, refer to Figure 12 The rolling assembly includes a main body and a reversible curling wheel 221 arranged on the main body. In addition, the rolling assembly also includes a plurality of supporting wheels 222. During the curling process, the supporting wheel together with the curling wheel 221 rests against the outer wall of the shock absorber, that is, the outer cylinder of the shock absorber to be curled is placed in the space surrounded by multiple supporting wheels and curling wheels, thereby ensuring the stability of the position of the outer cylinder of the shock absorber and improving the curling quality of the shock absorber.

[0041] In some embodiments, the first driving component is a hydraulic cylinder 230 for driving the carrier substrate 210 to move vertically along the column. When in use, the hydraulic cylinder is fixedly set on the top of the outer box 30, and the output end of the hydraulic cylinder is connected to the carrier substrate 210, and the carrier substrate can move vertically along the outer wall of the column. In this way, under the drive of the hydraulic cylinder 230, the carrier substrate and the working parts thereon can be driven to move vertically along the column to obtain a better curling working effect.

[0042] Reference Figure 10 、 Figure 11 、 Figure 12 Furthermore, in order to achieve effective flipping of the curling wheel 221, the curling wheel 221 is connected to a flipping toggle 260, and the second driving component is used to drive the flipping toggle to rotate to drive the curling wheel to flip. Specifically, the second driving component is a flanging cylinder 270 arranged on the carrier substrate 210. When in use, the flanging cylinder 270 is used to pull the flipping toggle to rotate, thereby driving the curling wheel connected to the flipping toggle to flip. It should be noted that the flipping angle of the curling wheel is between 45° and 100° to achieve better curling quality.

[0043] In other embodiments, the rotary drive assembly 250 includes a rotary motor 251, an input shaft flange 252 and a transmission belt 253. The input shaft flange 252 is arranged on the rolling assembly, and the transmission belt 253 is connected between the output shaft of the rotary motor and the input shaft flange. When in use, the rotary drive assembly is used to drive the rolling assembly to rotate at high speed around the circumferential side wall of the shock absorber outer cylinder during the curling process. Specifically, when the rotary motor is working, the power of the rotary motor is transmitted to the input shaft flange through the transmission belt to realize the rotation of the entire rolling assembly. It should be noted that the speed of the rolling assembly can be controlled by the rotary motor.

[0044] Furthermore, the shock absorber flanging machine also includes a displacement sensor 40 for detecting the displacement of the rolling assembly. The presence of the displacement sensor can accurately control the displacement of the rolling assembly along the column.

[0045] During use, the bottom of the shock absorber to be curled is supported by the support mechanism 110, and the shock absorber is clamped from the outer wall by the clamping mechanism 120. Then, the first driving component in the carrying mechanism is actuated to drive the rolling component 220 at the bottom of the carrying substrate to be pushed to the shock absorber position, and a certain pre-tightening force is applied to the shock absorber seal through the rolling component. After the pre-tightening force reaches the set value, the curling wheel is driven to flip by the second driving component to realize the curling operation of the shock absorber.

[0046] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A shock absorber flanging machine, characterized in that: include: A product tooling (10), comprising a support mechanism (110) for supporting a shock absorber to be flanged and a clamping mechanism (120) for clamping the shock absorber, the clamping mechanism comprising a centering base (121), two clamping jaws (122) fixedly mounted on the centering base, and a guide clamping jaw head (123) movably mounted on the inner side of the clamping jaws for clamping the outer wall of the shock absorber; and A transport mechanism comprises a transport base (210), a rolling assembly (220) arranged at the bottom of the transport base, a first drive assembly for driving the transport base to move vertically, a second drive assembly for driving a curling wheel (221) of the rolling assembly to flip to perform a curling action, and a rotation drive assembly (250) for driving the rolling assembly to rotate circumferentially along the outer wall of the shock absorber.

2. The shock absorber flanging machine according to claim 1, characterized in that: A pre-pressing device (124) is provided between the clamping jaw seat (122) and the guide clamping jaw head (123), and the guide clamping jaw head is connected to the clamping jaw seat (122) via a guide bushing (125).

3. The shock absorber flanging machine according to claim 1, characterized in that: The support mechanism (110) comprises a support base (111) and a workpiece seat (112) arranged on the support base.

4. The shock absorber flanging machine according to claim 3, characterized in that: The support mechanism further includes a mold changing assembly, which includes a pin (113) for fixing the workpiece seat (112) to the support base (111), a first pressure sensor (114) arranged between the workpiece seat and the support base, and an optical fiber sensing device (115) arranged on the top of the support base (111).

5. The shock absorber flanging machine according to claim 3, characterized in that: The product tooling also includes a lifting mechanism (130) for adjusting the height of the clamping mechanism, the lifting mechanism including a lifting drive motor (131), a gear box (132) arranged on the output shaft of the lifting drive motor, a lifting screw (133) arranged at the output end of the gear box and distributed vertically, and a lifting platform (134) arranged on the outer wall of the lifting screw for mounting the clamping mechanism.

6. The shock absorber flanging machine according to claim 1, characterized in that: The rolling assembly (220) further comprises a plurality of supporting wheels (222). During the curling process, the supporting wheels together with the curling wheels (221) abut against the outer wall of the shock absorber.

7. The shock absorber flanging machine according to claim 1, characterized in that: The shock absorber flanging machine further comprises an outer box (30), wherein a plurality of vertically parallel distributed columns (310) are provided in the outer box, and the first driving component is a hydraulic cylinder (230) for driving the carrying base plate (210) to move vertically along the columns.

8. The shock absorber flanging machine according to claim 7, characterized in that: The hemming wheel (221) is connected to a flip toggle (260), and the second driving component is used to drive the flip toggle to rotate to drive the hemming wheel to flip, and the second driving component is a flanging cylinder (270) arranged on the carrier base plate (210).

9. The shock absorber flanging machine according to claim 1, characterized in that: The rotary drive assembly (250) comprises a rotary motor (251), an input shaft flange (252) arranged on the rolling assembly, and a transmission belt (253) connected between the output shaft of the rotary motor and the input shaft flange.

10. The shock absorber flanging machine according to claim 1, characterized in that: The shock absorber flanging machine further comprises a displacement sensor (40) for detecting the displacement of the rolling assembly.

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