CN117862844A - Automatic press mounting equipment for shock absorber bushing - Google Patents
Automatic press mounting equipment for shock absorber bushing Download PDFInfo
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- CN117862844A CN117862844A CN202311831115.0A CN202311831115A CN117862844A CN 117862844 A CN117862844 A CN 117862844A CN 202311831115 A CN202311831115 A CN 202311831115A CN 117862844 A CN117862844 A CN 117862844A
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- 230000035939 shock Effects 0.000 title claims abstract description 24
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims description 47
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 17
- 230000007246 mechanism Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
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Abstract
The invention discloses automatic press-fitting equipment of a shock absorber bushing, which is used for press-fitting an outer component of the shock absorber bushing onto an inner component of the shock absorber bushing, and relates to the technical field of automatic press-fitting equipment, and the automatic press-fitting equipment comprises the following components: a bracket; the lower centering assembly comprises a chassis horizontally assembled on the bracket, a support bracket arranged at the top of the chassis, a horizontal support surface is arranged on the top surface of the support bracket, a through hole matched with the first shaft hole is formed in the center of the support surface, and the lower centering assembly further comprises a lower guide part for pushing the outer member to move so that the outer member is coaxial with the through hole; the hydraulic telescopic cylinder is vertically assembled on the support right above the lower centering component, and the telescopic end of the hydraulic telescopic cylinder is arranged downwards. The invention can automatically center the inner member and the outer member and then press the inner member and the outer member, thereby avoiding the damage of the bushing, ensuring that the inner member and the outer member do not move relatively in the press mounting process, and having good stability.
Description
Technical Field
The invention relates to the technical field of press-fitting devices, in particular to automatic press-fitting equipment for a shock absorber bushing.
Background
The shock absorber is used for inhibiting the shock of the spring during rebound after shock absorption and the impact from the road surface. The damping device is widely used for automobiles, and is used for accelerating the damping of the vibration of the frames and the automobile bodies so as to improve the running smoothness of the automobiles. Wherein the bushing is an integral component of the shock absorber structure.
The bushing comprises an inner member and an outer member, and when the bushing is assembled, the inner member needs to be pressed onto the outer member through a press-fit device so as to form the complete bushing. However, when the inner member is pressed and assembled to the outer member, the conventional pressing device has the problems of poor alignment precision and low alignment stability.
Disclosure of Invention
The invention aims to provide automatic press-fitting equipment for a shock absorber bushing, so as to solve the problems in the background art.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the invention provides an automatic press-fitting device of a shock absorber bushing, which is used for press-fitting an outer component of the shock absorber bushing onto an inner component of the shock absorber bushing, and comprises the following components:
a bracket;
the lower centering assembly comprises a chassis horizontally assembled on the bracket, a support bracket arranged at the top of the chassis, a horizontal support surface is arranged on the top surface of the support bracket, a through hole matched with the first shaft hole is formed in the center of the support surface, and the lower centering assembly further comprises a lower guide part for pushing the outer member to move so that the outer member is coaxial with the through hole;
the hydraulic telescopic cylinder is vertically assembled on the bracket right above the lower centering component, and the telescopic end of the hydraulic telescopic cylinder is downwards arranged;
the upper centering assembly comprises a limiting frame fixed at the telescopic end of the hydraulic telescopic cylinder, a slide way which is matched with the anti-slip upsetting head is arranged in the limiting frame, and an upper guide part which can enable the inner member to be coaxial with the perforation is arranged in the limiting frame; and
and the feeding assembly is used for respectively placing the outer member and the inner member on the bearing surface and the slideway.
Further, the lower guide part comprises a movable shaft coaxially arranged in the through hole and vertically penetrating through the chassis, a positioning pin coaxially arranged at the top end of the movable shaft, and a first reset spring assembled between the bottom end of the movable shaft and the support, wherein the positioning pin is matched with the shaft hole of the inner member;
the upper guide part comprises a limiting cylinder coaxial with the movable shaft, the limiting cylinder is fixed at the top of the inner side of a limiting frame above the slide way, a movable ball is arranged in the limiting cylinder through a pressure spring, the radius of the movable ball is larger than the diameter of the inner core, and the distance between the limiting cylinder and the slide way is equal to the sum of the height of the connecting section and the height of the anti-slip upsetting head.
Further, the clamping area of the movable shaft corresponds to the abutting strip and is provided with a movable groove for sliding the abutting strip, the axial position of the movable shaft is axially provided with an axial groove with an open top, the axial groove is communicated with the movable groove, the abutting strip is slidably matched in the movable groove, the driving part is a shaft rod, the shaft rod axially slides in the axial groove, a second reset spring is assembled between the bottom end of the shaft rod and the bottom of the axial groove, a wedge block structure is arranged between the shaft rod and the abutting strip, the wedge block structure can enable a plurality of abutting strips to slide in opposite directions or move backwards when the shaft rod vertically slides in the axial groove, the positioning pin is detachably arranged at the top end of the shaft rod, when the second reset spring is in a normal state, a space is reserved between the positioning pin and the top end of the movable shaft, a limiting disc is arranged on the shaft rod between the positioning pin and the movable shaft, the diameter of the limiting disc is smaller than the inner diameter of the inner tube, and the stiffness coefficient of the second reset spring is smaller than that of the first reset spring.
Further, the side of the abutting strip away from the shaft lever is uniformly provided with rollers along the length direction of the abutting strip.
Further, the support bracket comprises a bearing strip which is arranged corresponding to the plurality of collision strips, the bearing strip is arranged at the top of the chassis in a sliding manner through the limiting piece, the bearing strip can only slide along the radial direction of the movable shaft on the limiting piece, the perforation is formed between opposite ends of the plurality of bearing strips, the tops of the plurality of bearing strips jointly form a bearing surface, a third reset spring is arranged between one end, away from the movable shaft, of the bearing strip and the limiting piece, and the third reset spring enables one end, close to the movable shaft, of the bearing strip to always collide with the collision strips.
Further, when the second return spring is in a normal state, an external thread is arranged on the shaft rod above the movable shaft, a mounting hole matched with the shaft rod is arranged at the bottom of the positioning pin, an internal thread matched with the external thread is arranged on the inner wall of the mounting hole, and the limiting disc is in threaded connection with the shaft rod;
further, the feeding assembly comprises a first manipulator and a second manipulator, wherein the first manipulator is used for placing the outer component on the bearing surface, and the second manipulator is used for placing the inner component on the slideway.
Compared with the prior art, the above technical scheme has the following beneficial effects:
the invention can automatically center the inner member and the outer member and then press the inner member and the outer member, thereby avoiding the damage of the bushing, ensuring that the inner member and the outer member do not move relatively in the press mounting process, and having good stability.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic view of a bushing body of the present invention;
FIG. 2 is a schematic view of a split bushing body of the present invention;
FIG. 3 is a schematic view of the assembly mechanism of the present invention;
FIG. 4 is a partially disassembled schematic illustration of the mounting mechanism of the present invention;
FIG. 5 is a schematic diagram of a first positioning assembly of the present invention;
FIG. 6 is a schematic view of the assembly mechanism of the present invention in operation;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
FIG. 8 is a schematic view of the partial structure at A of FIG. 7;
FIG. 9 is a schematic view of the partial structure at B of FIG. 7;
FIG. 10 is a schematic view of the split structure of the movable shaft and the first guide member of the present invention;
FIG. 11 is a schematic diagram of a wedge structure according to the present invention.
In the figure:
100. an outer member; 110. an outer tube; 120. a middle tube; 130. an inner tube; 140. rubber; 150. a first shaft hole;
200. an inner member; 210. an inner core; 211. an assembly section; 212. a connection section; 220. an anti-slip upsetting head; 221. an arc-shaped anti-slip surface; 230. a second shaft hole;
400. a bracket;
500. a lower positioning assembly; 510. a chassis; 520. a support bracket; 521. a carrier strip; 522. a limiting piece; 523. a third return spring; 530. a bearing surface; 540. perforating; 550. a lower guide member; 551. a movable shaft; 551a, clamping area; 551b, sliding region; 551c, movable groove; 551d, shaft slots; 552. a positioning pin; 553. a first return spring; 554. a collision strip; 555. a shaft lever; 555a, a second return spring; 555b, a limiting disc; 5551. a wedge structure; 5551a, a first ramp; 5551b, diagonal blocks; 5551c, a second ramp;
600. an upper positioning assembly; 610. a limit frame; 620. a slideway; 630. an upper guide member; 631. a limiting cylinder; 632. a movable ball;
700. and a hydraulic telescopic cylinder.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
Referring to fig. 3-11, the present invention provides a damper bushing assembly fixture for press-fitting a damper bushing pair. As shown in fig. 1 and 2, in the shock absorber bushing according to the embodiment of the present invention, unlike the conventional shock absorber bushing structure, the shock absorber bushing is formed by sleeving an outer member 100 and an inner member 200 to each other, wherein the inner member 200 includes a tubular inner core 210 and a slip cap 220 disposed at the outer side of one end of the inner core 210, the slip cap 220 divides the outer side of the inner core 210 into an assembling section 211 and a connecting section 212 at the outer side of the inner core 210, and an arc-shaped slip preventing surface 221 is formed at the side of the slip cap 220 adjacent to the connecting section 212; this design increases the contact area with the fitting by the arcuate anti-slip surface 221 of the anti-slip head 220, thereby increasing the coefficient of friction of the core 210 with the fitting. However, this design brings about difficulty in molding, and thus an improvement is made on the outer member 100, which comprises an outer tube 110, a middle tube 120, and an inner tube 130 coaxially disposed in this order from the outside to the inside, the outer tube 110, the middle tube 120, and the inner tube 130 are integrally formed by vulcanization bonding with rubber 140, a first shaft hole 150 is formed on the inner side of the outer member 100, a second shaft hole 230 is formed on the inner side of the inner member 200, and during molding, the assembly section 211 of the inner member 200 is press-fitted into the first shaft hole 150 of the outer member 100 to complete the assembly, so as to solve the problem of difficulty in molding.
The shock absorber bushing assembling fixture of the invention mainly aims to press-fit an assembling section 211 of an inner member 200 into a first shaft hole 150 of an outer member 100, and comprises a bracket 400, a lower positioning assembly 500 for positioning the outer member 100, an upper positioning assembly 600 for positioning the inner member 200, a hydraulic telescopic cylinder 700 for driving the upper positioning assembly 600 to move towards the lower positioning assembly 500 to finish a sleeving operation, and a feeding assembly (not shown), wherein the lower positioning assembly 500 and the hydraulic telescopic cylinder 700 are assembled on the bracket 400, the hydraulic telescopic cylinder 700 is positioned right above the lower positioning assembly 500, a telescopic end of the hydraulic telescopic cylinder 700 is arranged downwards, and the upper positioning assembly 600 is fixed at the telescopic end of the hydraulic telescopic cylinder 700; during assembly, the feeding assembly is used for finishing the feeding work of the inner member and the outer member, and specifically, the feeding assembly comprises a first manipulator and a second manipulator, the first manipulator is used for placing the outer member on the bearing surface, and the second manipulator is used for placing the inner member on the slideway. The first manipulator and the second manipulator are both prior art, and are not described herein, and then the positioning of the outer member 100 and the inner member 200 can be completed through the lower positioning assembly 500 and the upper positioning assembly 600, respectively, so that the outer member 100 and the inner member 200 can be kept coaxial on the one hand, and on the other hand, the outer member 100 and the inner member 200 can be prevented from being damaged due to relative movement between the outer member 100 and the inner member 200 during the assembly process.
As shown in fig. 3 to 5, the lower positioning assembly 500 includes a base plate 510 horizontally mounted on the bracket 400, a support bracket 520 provided at the top of the base plate 510, the top surface of the support bracket 520 having a horizontal support surface 530, and the center of the support surface 530 having a through hole 540 adapted to the first shaft hole 150, and the lower positioning assembly 500 further includes a lower guide member 550 for pushing the outer member 100 to move so that the first shaft hole 150 is coaxial with the through hole 540; the supporting surface 530 of the supporting bracket 520 can support the outer member 100, and when the outer member 100 is placed on the supporting surface 530, the outer member 100 can be pushed to move by the lower guide member 550, so that the first shaft hole 150 of the outer member 100 is coaxial with the through hole 540, and the assembly section 211 of the inner member 200 extends out of the through hole 540 after penetrating the first shaft hole 150 of the outer member 100 during the assembly process, so that the assembly section 211 of the inner member 200 is press-fitted into the first shaft hole 150 of the outer member 100.
As shown in fig. 3 and 5, the upper positioning assembly 600 includes a limiting frame 610 fixed at the telescopic end of the hydraulic telescopic cylinder 700, a slide 620 adapted to the anti-slip heading 220 is provided in the limiting frame 610, and an upper guide member 630 enabling the second shaft hole 230 of the inner member 200 to be coaxial with the perforation 540 is provided in the limiting frame 610. The inner member 200 may be erected on the slide way 620 of the limit frame 610 through the anti-slip upsetting head 220, so that the inner member 200 is initially positioned on the limit frame 610, and the upper guide component 630 can guide and position the inner member 200, so that the second shaft hole 230 of the inner member 200 is coaxial with the through hole 540, that is, the assembly section 211 of the inner member 200 corresponds to the first shaft hole 150 of the outer member 100, and therefore, in the process of driving the upper positioning assembly 600 to move downwards by the hydraulic telescopic cylinder 700, the assembly section 211 of the inner member 200 is pressed into the first shaft hole 150 of the outer member 100.
Further, in order to ensure the stability of the outer member 100 and the inner member 200 during the assembly process, as shown in fig. 5, 10, 7 and 8, in this embodiment, the lower guide part 550 includes a movable shaft 551 coaxially disposed in the through hole 540 and vertically penetrating the chassis 510, a positioning pin 552 coaxially disposed at the top end of the movable shaft 551, and a first return spring 553 assembled between the bottom end of the movable shaft 551 and the bracket 400, the positioning pin 552 is adapted to the second shaft hole 230 of the inner member 200, when the first return spring 553 is in a normal state, the movable shaft 551 above and below the bottom surface of the support bracket 520 is divided into a clamping area 551a and a sliding area 551b, the clamping area 551a of the movable shaft 551 is uniformly slidably mounted in the circumferential direction with a sliding contact strip 554 only in the radial direction thereof, a driving part is connected between the plurality of contact strips 554, and the driving part is used for synchronously driving the plurality of contact strips 554 to move toward or away from each other, and the heights of the clamping area 551a and the sliding area 551b are greater than the height of the outer member 100; the upper guiding component 630 comprises a limiting cylinder 631 coaxial with the movable shaft 551, the limiting cylinder 631 is fixed on the top of the inner side of the limiting frame 610 above the slideway 620, a movable ball 632 is arranged in the limiting cylinder 631 through a pressure spring, the radius of the movable ball 632 is larger than the diameter of the inner core 210, and the distance between the limiting cylinder 631 and the slideway 620 is equal to the sum of the height of the connecting section 212 and the height of the anti-slip upsetting head 220.
In use, the assembly process of the outer member 100 and the inner member 200 can be divided into three steps, the first step is a step of placing and positioning the outer member 100, the second step is a step of placing and positioning the inner member 200, and the third step is a step of press-fitting the inner member 200 to the outer member 100.
Specific steps for placing and positioning the outer member 100 are as follows: the outer member 100 is placed on the bearing surface 530 through the feeding assembly, the movable shaft 551 passes through the first shaft hole 150 of the outer member 100, and in the process, the plurality of abutting strips 554 are all positioned at the inner side of the through hole 540, so that the operation difficulty of the feeding assembly is facilitated, the feeding assembly can rapidly complete the placement work of the outer member 100, when the outer member 100 is placed on the bearing surface 530, the plurality of abutting strips 554 are driven by the driving part to synchronously move oppositely, so that the outer member 100 can be pushed to move on the bearing surface 530, and when the first shaft hole 150 of the outer member 100 is coaxial with the through hole 540, the plurality of abutting strips 554 are positioned at the position, so that the movement of the outer member 100 in the press mounting process is limited;
specific steps for placing and positioning the inner member 200 are as follows: the anti-slip upsetting head 220 of the inner core 210 is upwards arranged at one end of the inner core 210 through the feeding component, so that the anti-slip upsetting head 220 slides to the lower part of the limiting cylinder 631 from one end of the slideway 620, in the process, the movable ball 632 can be jacked up and then is abutted against the edge of the second shaft hole 230 of the inner member 200 through the arc-shaped surface of the movable ball 632 under the action of the pressure spring, so that the movement of the outer member 200 in the press mounting process can be limited;
the specific inner member 200 press-fitting to the outer member 100 steps: the telescopic end of the hydraulic telescopic cylinder 700 drives the limit frame 610 to move downwards, in the process, the locating pin 552 can penetrate into the second shaft hole 230 of the inner member 200 at first, further, the movement of the outer member 200 in the press mounting process is limited, and along with the continuous downward movement of the telescopic end of the hydraulic telescopic cylinder 700, after the end of the inner member 200 is contacted with the top end of the movable shaft 551, the movable shaft 551 can be pushed by the inner member 200 to move downwards, and the movable shaft 551 is limited by the chassis 510 and can only slide vertically, so that the relative movement between the outer member 100 and the inner member 200 can be avoided in the assembly process, and the stability of the outer member 100 and the inner member 200 in the assembly process is ensured;
when the assembly section 211 of the inner member 200 completely penetrates into the first shaft hole 150 of the outer member 100, at this time, the telescopic end of the hydraulic telescopic cylinder 700 is reset, so that the limiting frame 610 is driven to move upwards to move out the assembled bushing body, so as to facilitate the removal of the assembled bushing body.
Specifically, as shown in fig. 10, the clamping area 551a of the movable shaft 551 is provided with a movable slot 511c corresponding to the abutting strip 554 for sliding the abutting strip 554, the axial position of the movable shaft 551 is axially provided with an axial slot 511d with an open top, the axial slot 511d is communicated with the movable slot 511c, the abutting strip 554 is slidably fitted in the movable slot 511c, the driving part is a shaft 555, the shaft 555 axially slides in the axial slot 511d, a second reset spring 555a is mounted between the bottom end of the shaft 555 and the bottom of the axial slot 511d, a wedge structure 5551 is arranged between the shaft 555 and the abutting strip 554, the wedge block structure 5551 can enable a plurality of abutting strips 554 to slide in opposite directions or move backwards when the shaft rod 555 slides up and down in the shaft rod 555 groove, the positioning pin 552 is detachably mounted at the top end of the shaft rod 555, when the second reset spring 555a is in a normal state, a space is reserved between the positioning pin 552 and the top end of the movable shaft 551, a limiting disc 555b is arranged on the shaft rod 555 between the positioning pin 552 and the movable shaft 551, the diameter of the limiting disc 555b is smaller than the diameter of the inner tube 130 and larger than the inner diameter of the inner core 210, and the stiffness coefficient of the second reset spring 555a is smaller than that of the first reset spring 553.
Based on the above design, the present solution not only simplifies the placement and positioning steps of the outer member 100, but also reduces the manufacturing cost of the assembly mechanism 300.
Specifically, when the outer member 100 is placed, a worker only needs to place the outer member 100, and does not need to perform positioning work on the outer member 100, the positioning work on the outer member 100 can be completed by driving the limiting frame 610 to move downwards at the telescopic end of the hydraulic telescopic cylinder 700, more specifically, after the positioning pin 552 penetrates into the second shaft hole 230 of the inner member 200, the inner member 200 continues to move downwards to enable the end of the inner member 200 to abut against the limiting disc 555b, so that the shaft 555 is pushed to move downwards, and the shaft 555 moves downwards to enable the plurality of abutting strips 554 to slide back to back in the corresponding movable groove 511c through the wedge block structure 5551, so that positioning of the outer member 100 is achieved.
Specifically, as shown in fig. 11, the wedge structure 5551 includes a first inclined surface 5551a disposed on a side of the abutting strip 554 near the shaft 555, and an inclined block 5551b fixed on the shaft 555, wherein a second inclined surface 5551c adapted to the first inclined surface 5551a is disposed on a side of the inclined block 5551b near the first inclined surface 5551a, and a spline and a key groove are slidably connected between the first inclined surface 5551a and the second inclined surface 5551c in a matching manner, and the first inclined surface is disposed towards the first inclined surface 5551 a.
Further, rollers are uniformly disposed on one side of the abutting strip 554 away from the shaft 555 along the length direction thereof. Based on the above design, the friction between the abutting strip 554 and the first shaft hole 150 can be reduced, so as to avoid the dry friction between the abutting strip 554 and the first shaft hole 150 during the downward movement of the movable shaft 551, which causes the abrasion of the inner wall of the first shaft hole 150, and affects the matching degree of the inner member 200 and the outer member 100.
Further, the abutting strips 554 and the carrying strips 521 also have overlapping portions when the fitting section 211 of the inner core 210 is press-fitted into the inner tube 130 of the outer member 100. The design can facilitate the resetting of the movable shaft 551.
In order to enable the assembly mechanism 300 to adapt to the assembly of the bushings with different sizes, as shown in fig. 5 and 7, in this embodiment, the support bracket 520 includes a carrier bar 521 disposed corresponding to a plurality of abutting bars 554, the carrier bar 521 is slidably disposed on the top of the chassis 510 through a limiting member 522, the carrier bar 521 can only slide on the limiting member 522 along the radial direction of the movable shaft 551, the through hole 540 is formed between opposite ends of the plurality of carrier bars 521, the tops of the plurality of carrier bars 521 together form a supporting surface 530, a third return spring 523 is mounted between an end of the carrier bar 521, which is far away from the movable shaft 551, and the limiting member 522, and the third return spring 523 enables an end of the carrier bar 521, which is close to the movable shaft 551, to always abut against the abutting bars 554. Based on the above design, the present solution can synchronously drive the carrier 521 to move during the positioning process of the outer member 100, so as to change the size of the through hole 540, so that the carrier 521 can just support the bottom of the outer member 100 after the outer member 100 is positioned.
Specifically, when the plurality of abutting strips 554 slide back to back in the corresponding movable slots 511c, the abutting strips 554 can push the corresponding carrying strips 521 to move together, and after the plurality of abutting strips 554 contact the inner tube 130, the carrying strips 521 always abut against the abutting strips 554 through the third return spring 523 after the positioning of the outer member 100 is completed, so that the carrying strips 521 are exactly located at the bottom of the outer member 100 to support the outer member 100.
It should be noted that the purpose of this design is that, because the outer tube 110, the middle tube 120 and the inner tube 130 of the outer member 100 are bonded together by vulcanization of the rubber 140, the inner tube 130 will receive a downward force during the assembly process, and if the inner tube 130 is suspended at this time, the inner tube 130 will move downward, so that the inner core 210 cannot be connected to the inner tube 130, and in addition, the connection between the inner tube 130 and the middle tube 120 will be disconnected.
Further, when the second return spring 555a is in a normal state, an external thread (not shown) is provided on the shaft rod 555 above the movable shaft 551, a mounting hole adapted to the shaft rod 555 is provided at the bottom of the positioning pin 552, an internal thread adapted to the external thread is provided on the inner wall of the mounting hole, and the limit disc 555b is in threaded connection with the shaft rod 555.
Based on the above design, when the bushing sizes are different, the different positioning pins 552 can be replaced to position the inner core 210, and meanwhile, the limiting disc 555b can be rotated to adjust the distance between the limiting disc 555b and the movable shaft 551, so as to adjust the sliding distance of the abutting strips 554 to adapt to the positioning of the outer member 100.
Further, the sliding region 551b of the movable shaft 551 is slidably connected between the chassis 510 by a spline-to-keyway fit (not shown). During the downward movement of the movable shaft 551, the movable shaft 551 rotates circumferentially to avoid the interference between the supporting strips 554 and the supporting strips 521.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. An automated press-fitting apparatus for press-fitting an outer member of a damper bush to an inner member thereof, comprising:
a bracket;
the lower centering assembly comprises a chassis horizontally assembled on the bracket, a support bracket arranged at the top of the chassis, a horizontal support surface is arranged on the top surface of the support bracket, a through hole matched with the first shaft hole is formed in the center of the support surface, and the lower centering assembly further comprises a lower guide part for pushing the outer member to move so that the outer member is coaxial with the through hole;
the hydraulic telescopic cylinder is vertically assembled on the bracket right above the lower centering component, and the telescopic end of the hydraulic telescopic cylinder is downwards arranged;
the upper centering assembly comprises a limiting frame fixed at the telescopic end of the hydraulic telescopic cylinder, a slide way which is matched with the anti-slip upsetting head is arranged in the limiting frame, and an upper guide part which can enable the inner member to be coaxial with the perforation is arranged in the limiting frame; and
and the feeding assembly is used for respectively placing the outer member and the inner member on the bearing surface and the slideway.
2. The automated press-fitting apparatus of a shock absorber bushing according to claim 1, wherein the lower guide member includes a movable shaft coaxially provided in the through hole and vertically penetrating the chassis, a positioning pin coaxially provided at a top end of the movable shaft, and a first return spring fitted between a bottom end of the movable shaft and the bracket, the positioning pin being fitted to a shaft hole of the inner member, the movable shaft above and below the bearing surface being divided into a clamping area and a sliding area when the first return spring is in a normal state, the clamping area of the movable shaft being provided at the clamping area with a pressing bar uniformly slidable only in a radial direction thereof in a circumferential direction, a driving part being connected between the pressing bars for synchronously driving the pressing bars to move toward or away from each other, the heights of the clamping area and the sliding area being greater than the height of the outer member;
the upper guide part comprises a limiting cylinder coaxial with the movable shaft, the limiting cylinder is fixed at the top of the inner side of a limiting frame above the slide way, a movable ball is arranged in the limiting cylinder through a pressure spring, the radius of the movable ball is larger than the diameter of the inner core, and the distance between the limiting cylinder and the slide way is equal to the sum of the height of the connecting section and the height of the anti-slip upsetting head.
3. The automatic press-fitting equipment of the shock absorber bushing according to claim 2, wherein a movable groove for sliding the abutting strips is formed in the clamping area of the movable shaft, a shaft groove with an open top is axially formed in the axial position of the movable shaft, the shaft groove is communicated with the movable groove, the abutting strips are slidably fit in the movable groove, the driving part is a shaft rod, the shaft rod axially slides in the shaft groove, a second reset spring is arranged between the bottom end of the shaft rod and the bottom of the shaft groove, a wedge block structure is arranged between the shaft rod and the abutting strips, the wedge block structure can enable a plurality of abutting strips to slide in opposite directions or move backwards when the shaft rod vertically slides in the shaft groove, the positioning pin is detachably mounted at the top end of the shaft rod, a spacing disc is arranged between the positioning pin and the top end of the movable shaft in a normal state, the diameter of the spacing disc is smaller than the inner diameter of the inner tube, and the stiffness coefficient of the second reset spring is smaller than that of the first reset spring.
4. The automated press-fitting apparatus of a shock absorber bushing according to claim 2, wherein the side of the abutting strip away from the shaft is uniformly provided with rollers along a length direction thereof.
5. The automated press-fitting device of a shock absorber bushing according to claim 1, wherein the support bracket comprises a support bar arranged corresponding to the plurality of abutting bars, the support bar is slidably arranged at the top of the chassis through the limiting member, the support bar can only slide along the radial direction of the movable shaft on the limiting member, the perforation is formed between opposite ends of the plurality of support bars, the tops of the plurality of support bars jointly form a support surface, a third return spring is arranged between one end of the support bar far away from the movable shaft and the limiting member, and the third return spring enables one end of the support bar close to the movable shaft to always abut against the abutting bars.
6. The automated press-fitting apparatus of a shock absorber bushing according to claim 5, wherein when the second return spring is in a normal state, an external thread is provided on the shaft rod above the movable shaft, a mounting hole adapted to the shaft rod is provided at the bottom of the positioning pin, an inner wall of the mounting hole is internally threaded adapted to the external thread, and the limit disk is in threaded connection with the shaft rod.
7. The automated press-fitting apparatus of a shock absorber bushing of claim 1, wherein the loading assembly includes a first manipulator for placing the outer member on the bearing surface and a second manipulator for placing the inner member on the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311831115.0A CN117862844A (en) | 2023-12-28 | 2023-12-28 | Automatic press mounting equipment for shock absorber bushing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311831115.0A CN117862844A (en) | 2023-12-28 | 2023-12-28 | Automatic press mounting equipment for shock absorber bushing |
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| Publication Number | Publication Date |
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| CN117862844A true CN117862844A (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311831115.0A Pending CN117862844A (en) | 2023-12-28 | 2023-12-28 | Automatic press mounting equipment for shock absorber bushing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009119575A (en) * | 2007-11-16 | 2009-06-04 | Saxa Inc | Center positioning apparatus of cylindrical member |
| CN212169508U (en) * | 2020-01-14 | 2020-12-18 | 佛山非夕机器人科技有限公司 | Assembly unit and running-in equipment for brake assembly of robot joint |
| CN115319442A (en) * | 2022-10-12 | 2022-11-11 | 苏州高求美达橡胶金属减震科技有限公司 | Axial pressure dismounting device for swing arm hydraulic bushing |
| CN116214114A (en) * | 2022-09-07 | 2023-06-06 | 台州职业技术学院 | Gear bushing press-fitting machine |
-
2023
- 2023-12-28 CN CN202311831115.0A patent/CN117862844A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009119575A (en) * | 2007-11-16 | 2009-06-04 | Saxa Inc | Center positioning apparatus of cylindrical member |
| CN212169508U (en) * | 2020-01-14 | 2020-12-18 | 佛山非夕机器人科技有限公司 | Assembly unit and running-in equipment for brake assembly of robot joint |
| CN116214114A (en) * | 2022-09-07 | 2023-06-06 | 台州职业技术学院 | Gear bushing press-fitting machine |
| CN115319442A (en) * | 2022-10-12 | 2022-11-11 | 苏州高求美达橡胶金属减震科技有限公司 | Axial pressure dismounting device for swing arm hydraulic bushing |
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