Shock absorber guide tube bumper press fitting aid

Abstract

The application discloses a shock absorber guide pipe buffer sleeve press-fitting auxiliary tool and relates to the technical field of shock absorber guide pipe buffer sleeve press-fitting. The upper press head subassembly comprises a supporting seat, a guide pressing sleeve and an upper press head, the supporting seat is connected with the guide pressing sleeve, the bottom of the upper press head penetrates through the guide pressing sleeve and is movably connected with the guide pressing sleeve, and the first buffer rubber is arranged between the top of the upper press head and the supporting seat. The lower positioning seat subassembly comprises a bottom plate, a positioning seat, a lower top head fixing plate and a lower top head, the lower top head fixing plate is connected with the bottom plate, the bottom of the lower top head is partially embedded in the lower top head fixing plate for fixation, the top of the lower top head penetrates through the positioning seat and is movably connected with the positioning seat, and the second buffer rubber and the limiting ring are arranged between the positioning seat and the lower top head fixing plate. The application can better press-fit the guide pipe buffer sleeve, and the press-fitting is successful at one time, so that the press-fitting efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock absorber guide pipe buffer sleeve press fitting, in particular to a shock absorber guide pipe buffer sleeve press fitting auxiliary tool. BACKGROUND

[0002] The existing shock absorber ring with buffer sleeve for vehicle includes a ring and a buffer sleeve, the buffer sleeve is press fitted in the ring, the inner and outer of the ring port are respectively provided with inner and outer tapered surfaces, and the inner wall of the ring on the inner side of the inner tapered surface is provided with a trapezoidal ring groove;The top surface of the rubber layer of the buffer sleeve is trapezoidal groove, the side end surface is transitioned by the tangent inner and outer arcs, and is matched with the trapezoidal ring groove, wherein the inner diameter of the ring is smaller than the outer diameter of the groove bottom of the top surface of the rubber layer, the inner diameter of the trapezoidal ring groove is smaller than the outer diameter of the notch of the top surface of the rubber layer, and the side edge interval of the groove bottom inner side of the trapezoidal ring groove symmetrically arranged in the ring is not greater than the caliber of the notch of the top surface of the rubber layer, which improves the use reliability of the shock absorber, avoids the tearing of the buffer sleeve rubber in motion, meets the demand of automobile driving comfort, and is more stable in operation. However, in order to ensure that the product meets the requirements after press fitting, the operator adopts multiple reverse press fitting, which is high in labor intensity and low in efficiency, and some manufacturers also use special machine press fitting, which is high in cost. Therefore, a shock absorber guide pipe buffer sleeve press fitting auxiliary tool is designed. SUMMARY

[0003] The present application aims at overcoming the shortcomings of the prior art, and provides a shock absorber guide pipe buffer sleeve press fitting auxiliary tool, which can better press fit the guide pipe buffer sleeve through the synergistic effect of the upper press head, the first buffer rubber, the lower top head and the second buffer rubber, the top and bottom of the guide pipe buffer sleeve are attached to the top and bottom of the ring, and are symmetrical with the axis of the shock absorber assembly, without damaging or locally creasing in the ring, and the one-time press fitting is successful, without multiple reverse press fitting, which is high in efficiency.

[0004] The object of the present application is achieved by the technical scheme that the damping pipe buffer sleeve press-fitting aid tool comprises an upper press head subassembly and a lower positioning seat subassembly, the upper press head subassembly and the lower positioning seat subassembly are positioned and fixed on an oil press workbench, the upper press head subassembly comprises a supporting seat, a guide press sleeve and an upper press head, the supporting seat is connected with the guide press sleeve, the bottom of the upper press head penetrates through the guide press sleeve and is movably connected with the guide press sleeve, the first buffer rubber is arranged between the top of the upper press head and the supporting seat, the lower positioning seat subassembly comprises a bottom plate, a positioning seat, a lower top head fixing plate and a lower top head, the lower top head fixing plate is connected with the bottom plate, the length of the lower top head is ensured to be able to guarantee that the bottom of the damping pipe buffer sleeve can be pressed out of a part of the lifting ring when the damping pipe buffer sleeve is pressed into the lifting ring, the bottom of the lower top head is partially embedded in the lower top head fixing plate for fixation, the top of the lower top head penetrates through the positioning seat and is movably connected with the positioning seat, the second buffer rubber and the limiting ring are arranged between the positioning seat and the lower top head fixing plate, the damping pipe buffer sleeve is partially sleeved at the bottom of the upper press head, and the upper press head presses the damping pipe buffer sleeve into the lifting ring of the damper assembly.

[0005] Preferably, the bottom of the upper press head is conical, which is more convenient for the damping pipe buffer sleeve to be pressed into the lifting ring.

[0006] Further, the pre-tightening pressure of the first buffer rubber is greater than the press-fitting force required for the damping pipe buffer sleeve to be pressed into the damper lifting ring, and the pre-tightening pressure of the second buffer rubber is greater than the pre-tightening pressure of the first buffer rubber. The pre-tightening pressure represents the maximum pressure that can be borne.

[0007] Preferably, the limiting ring is sleeved outside the lower top head and is fixedly connected with the lower top head fixing plate.

[0008] Further, the second buffer rubber is arranged outside the limiting ring, which is convenient for uniform stress and avoids the position of the damping pipe buffer sleeve inserted into the lifting ring from being inclined.

[0009] Further, the lower positioning seat subassembly further comprises three unloading screws, the unloading screws penetrate through the bottom plate, the lower top head fixing plate, the second buffer rubber and the positioning seat in sequence, the top of the unloading screw is fixedly connected with the positioning seat, and the unloading screw is movably connected with the bottom plate, the lower top head fixing plate and the second buffer rubber respectively.

[0010] Preferably, the upper press head subassembly and the lower positioning seat subassembly are coaxially arranged, so that the upper press head and the lower top head are coaxial, which is convenient for the press-fitting of the damping pipe buffer sleeve.

[0011] Further, the supporting seat and the guide press sleeve are fixedly connected through a hexagonal socket head cap screw.

[0012] Further, the upper press head subassembly further comprises a coupling head, and the coupling head is connected with the oil press sliding block.

[0013] The beneficial effects of the present application are:

[0014] The upper pressing head, the first buffer rubber, the lower top head and the second buffer rubber cooperate to better press-fit the catheter buffer sleeve, the top and bottom of the catheter buffer sleeve are attached to the top and bottom of the lifting ring, and are symmetrical to the axis of the shock absorber assembly, without damaging or locally creasing in the lifting ring, and one-time press-fitting is successful, without the need for multiple reverse press-fitting, and the efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structure schematic diagram before press-fitting of the present application;

[0016] Fig. 2 It is a structure schematic diagram after press-fitting;

[0017] In the figure: 1 - upper pressing head subassembly, 2 - lower positioning seat subassembly, 3 - catheter buffer sleeve, 101 - coupling head, 102 - first buffer rubber, 103 - inner hexagonal screw, 104 - support seat, 105 - upper pressing head, 106 - guide pressing sleeve, 202 - second buffer rubber, 203 - unloading screw, 201 - positioning seat, 204 - bottom plate, 205 - second inner hexagonal screw, 206 - lower top head fixing plate, 207 - limiting ring, 208 - lower top head. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0019] The present application will be further described below in combination with the drawings and specific embodiments.

[0020] Embodiment 1:

[0021] As Figs. 1-2As shown, the damper guide pipe buffer sleeve press-fitting aid includes an upper press head subassembly 1 and a lower positioning seat subassembly 2, which are positioned and fixed on the oil press workbench. The upper press head subassembly 1 includes a support seat 104, a guide press sleeve 106, and an upper press head 105. The support seat 104 is connected with the guide press sleeve 106. The bottom of the upper press head 105 penetrates through the guide press sleeve 106 and is movably connected with the guide press sleeve 106. The first buffer rubber 102 is arranged between the top of the upper press head 105 and the support seat 104.

[0022] The lower positioning seat subassembly 2 includes a bottom plate 204, a positioning seat 201, a lower top head fixing plate 206, and a lower top head 208. The lower top head fixing plate 206 is connected with the bottom plate 204. The length of the lower top head 208 is designed to ensure that the bottom of the guide pipe buffer sleeve 3 can be pressed out of the hanger ring when the guide pipe buffer sleeve 3 is pressed into the hanger ring. The bottom of the lower top head 208 is partially embedded in the lower top head fixing plate 206 for fixation. The top of the lower top head 208 penetrates through the positioning seat 201 and is movably connected with the positioning seat 201. The three second buffer rubbers 202 and a limiting ring 207 are arranged between the positioning seat 201 and the lower top head fixing plate 206. The guide pipe buffer sleeve 3 is a metal pipe and rubber vulcanization integrated part. The hanger ring outer circle of the damper assembly is positioned on the positioning seat 201. Then the guide pipe buffer sleeve 3 is vertically placed in the hole of the hanger ring. The oil press is started. The upper press head subassembly 1 moves downward. The bottom of the upper press head 105 is pressed into the guide pipe buffer sleeve 3. As the upper press head subassembly 1 continues to move downward, the upper press head 105 presses the guide pipe buffer sleeve 3 into the hanger ring. At the same time, the bottom of the guide pipe buffer sleeve 3 is pressed out of the hanger ring. At this time, the guide press sleeve 106 contacts the hanger ring. The upper press head subassembly 1 continues to move downward. The guide press sleeve 106 transmits the pressure to the end face of the hanger ring. The hanger ring is pressed downward by the guide press sleeve 106. The positioning seat 201 is pressed downward by the hanger ring. The positioning seat 201 presses the second buffer rubber 202. The top of the lower top head 208 contacts the bottom of the guide pipe buffer sleeve 3. The upper press head subassembly 1 continues to move downward. The hanger ring is continuously pressed downward. Since the guide pipe buffer sleeve 3 is limited in position by the lower top head 208, the upper press head 105 is kept stationary due to the resistance of the guide pipe buffer sleeve 3. However, the continuous downward movement of the upper press head subassembly 1 causes the first buffer rubber 102 to be compressed. At the same time, the lower top head 208 pushes the part of the guide pipe buffer sleeve 3 that is pressed out of the hanger ring back into the hanger ring until the positioning seat 201 contacts the limiting ring 207. At this time, the top and bottom of the guide pipe buffer sleeve 3 are attached to the top and bottom of the hanger ring and are symmetrical with the axis of the damper assembly, without damaging or locally creasing in the hanger ring. The oil press is reset. The operator takes down the processed workpiece. The whole press-fitting process is completed.

[0023] Example 2:

[0024] On the basis of embodiment 1, the upper pressing head 105 is improved, the bottom of the upper pressing head 105 is conical, and the conical section of the upper pressing head 105 enters the mouth of the catheter buffer sleeve 3, which is more convenient for the catheter buffer sleeve 3 to be pressed into the hanging ring.

[0025] The pre-tightening pressure of the first buffer rubber 102 is greater than the pressing force required for the catheter buffer sleeve 3 to be pressed into the shock absorber hanging ring, and the pre-tightening pressure of the second buffer rubber 202 is greater than the pre-tightening pressure of the first buffer rubber 102.

[0026] Embodiment 3:

[0027] On the basis of embodiment 1, the limiting ring 207 is improved, the limiting ring 207 is sleeved on the outside of the lower top head 208 and in contact with the lower top head fixing plate 206, the limiting ring 207 is a series of pieces, and different height limiting rings 207 can be replaced according to different height requirements.

[0028] The three second buffer rubbers 202 are evenly arranged outside the limiting ring 207, which is convenient for uniform stress and avoids the position of the catheter buffer sleeve 3 inserted into the hanging ring from being inclined.

[0029] The lower positioning seat assembly 2 further includes three unloading screws, each unloading screw 203 penetrates the bottom plate 204, the lower top head fixing plate 206, a second buffer rubber 202, and the positioning seat 201 in sequence, the top of the unloading screw 203 is fixedly connected with the positioning seat 201, and the unloading screw 203 is movably connected with the bottom plate 204, the lower top head fixing plate 206, and the second buffer rubber 202, respectively. When the positioning seat 201 moves downward under the pressure of the hanging ring, the second buffer rubber 202 is extruded and compressed, and the unloading screw 203 is driven by the positioning seat 201 to move downward together, the bottom of the unloading screw 203 is separated from the bottom plate 204, and the bottom plate 204 and the lower top head fixing plate 206 are fixedly connected by the second inner hexagonal screw 205.

[0030] Embodiment 4:

[0031] On the basis of embodiment 1, the upper pressing head assembly 1 and the lower positioning seat assembly 2 are coaxially arranged, so that the upper pressing head 105 and the lower top head 208 are coaxial, which is convenient for the pressing of the catheter buffer sleeve 3.

[0032] The support seat 104 and the guide pressing sleeve 106 are fixedly connected by the inner hexagonal screw 103.

[0033] The upper pressing head assembly 1 further includes a coupling head 101, and the coupling head 101 is connected with the oil press slider.

[0034] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and operation described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the claims below and their equivalents.

Claims

1. A shock absorber guide tube bumper press fitting aid, characterized by: The upper pressing head subassembly (1) comprises a supporting seat (104), a guide pressing sleeve (106) and an upper pressing head (105), the supporting seat (104) is connected with the guide pressing sleeve (106), the bottom of the upper pressing head (105) penetrates through the guide pressing sleeve (106) and is movably connected with the guide pressing sleeve (106), the first buffer rubber (102) is arranged between the top of the upper pressing head (105) and the supporting seat (104), and the pre-tightening pressure of the first buffer rubber (102) is greater than the pressing force required for pressing the guide pipe buffer sleeve (3) into the shock absorber hanger ring; The lower positioning seat subassembly (2) comprises a bottom plate (204), a positioning seat (201), a lower top head fixing plate (206) and a lower top head (208), the lower top head fixing plate (206) is connected with the bottom plate (204), the bottom of the lower top head (208) is partially embedded in the lower top head fixing plate (206) for fixation, the top of the lower top head (208) penetrates through the positioning seat (201) and is movably connected with the positioning seat (201), the second buffer rubber (202) and the limiting ring (207) are arranged between the positioning seat (201) and the lower top head fixing plate (206), the second buffer rubber (202) is arranged outside the limiting ring (207), the pre-tightening pressure of the second buffer rubber (202) is greater than that of the first buffer rubber (102), and the limiting ring (207) is sleeved outside the lower top head (208) and fixedly connected with the lower top head fixing plate (206).

2. The shock absorber guide bushing press fitting aid of claim 1, wherein: The bottom of the upper pressing head (105) is conical.

3. The shock absorber guide bushing press fitting aid of claim 1, wherein: The lower positioning seat subassembly (2) further comprises a discharging screw (203), the discharging screw (203) penetrates through the bottom plate (204), the lower top head fixing plate (206), the second buffer rubber (202) and the positioning seat (201) in sequence, the top of the discharging screw (203) is fixedly connected with the positioning seat (201), and the discharging screw (203) is movably connected with the bottom plate (204), the lower top head fixing plate (206) and the second buffer rubber (202) respectively.

4. The shock absorber guide bushing press fitting aid of claim 1, wherein: The upper pressing head subassembly (1) and the lower positioning seat subassembly (2) are coaxially arranged.

5. The shock absorber guide bushing press fitting aid of claim 1, wherein: The supporting seat (104) and the guide pressing sleeve (106) are fixedly connected through the inner hexagonal screw (103).

6. The shock absorber guide bushing press fitting aid of claim 1, wherein: The upper pressing head subassembly (1) further comprises a coupling head (101), and the coupling head (101) is connected with a sliding block of an oil press.

Images