CN116252134A - Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing - Google Patents

Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing Download PDF

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Publication number
CN116252134A
CN116252134A CN202310106031.4A CN202310106031A CN116252134A CN 116252134 A CN116252134 A CN 116252134A CN 202310106031 A CN202310106031 A CN 202310106031A CN 116252134 A CN116252134 A CN 116252134A
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CN
China
Prior art keywords
vertical
clamp body
floating
pressing
assembly
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CN202310106031.4A
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Chinese (zh)
Inventor
刘武龙
宋旭华
石朗林
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Ningbo Tuopu Industrial Automation Co ltd
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Ningbo Tuopu Industrial Automation Co ltd
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Priority to CN202310106031.4A priority Critical patent/CN116252134A/en
Publication of CN116252134A publication Critical patent/CN116252134A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/10—Aligning parts to be fitted together
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention discloses floating clamp body vertical assembly equipment suitable for automobile auxiliary frame bushing assembly, which comprises a movable support, a vertical clamp body arranged in front of the movable support, an upper pressing head and a lower pressing head coaxially arranged on the upper end and the lower end of a front groove of the vertical clamp body, a pressing head driving mechanism arranged on the upper end of the front groove of the vertical clamp body and used for driving the upper pressing head to move, an introduction mechanism arranged between the movable support and the vertical clamp body and used for driving the vertical clamp body to move so as to introduce the lower pressing head into the bottom of a floating positioning tool used for positioning a sleeve, and a buffering floating mechanism used for enabling the vertical clamp body to be in a tiny shaking floating state in the bushing pressing process.

Description

Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing
Technical Field
The invention relates to automobile auxiliary frame bushing assembly equipment in the technical field of automation equipment, in particular to floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushings.
Background
At present, the auxiliary frame of the automobile is widely applied to the automobile, plays a role in intermediate connection, can buffer and absorb shock, and improves the comfort of the automobile. The auxiliary frame of the automobile is required to be assembled with the connecting rods and the control arms on the steering system of the automobile, the bushings are rubber metal pieces and can buffer and absorb the vibration of the ground and the automobile body, so that the main effects of the bushings are shock absorption, noise isolation, fatigue reduction and service life increase, the auxiliary frame plays a vital role in the operation stability of the automobile, and the comfort of drivers and the running stability of the automobile are improved.
In the assembly process of the automobile auxiliary frame in a production line, the assembly of the bushing is one of important procedures in the assembly process of the automobile auxiliary frame. The automotive subframe product may only require 4 bushings in the Z-axis direction, and some require bushings in both the X-axis and Y-axis directions. Aiming at the assembly of the bushing in the Z-axis direction, a jack or a hydraulic station direct press-fitting method is generally adopted in the past, and the press-fitting efficiency of the bushing still needs to be further improved due to manual operation of the press-fitting equipment; because the auxiliary frame of the automobile is a relatively large thin-wall part, deformation is definitely existed in the production process of the auxiliary frame, the bushing is difficult to center in the press fitting process and cannot be completely concentric with the sleeve of the product, so that the phenomena of eccentric pressing, crushing, unqualified press fitting size and the like of the bushing can be caused; the press-fitting stability and consistency are poor, and the quality cannot be guaranteed; the defects of the misalignment of the central core shaft of the bushing, the trimming and fracturing of the bushing and the like exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing floating clamp body vertical assembly equipment suitable for assembling an automobile auxiliary frame bushing, which can enable the clamp body to be in a slightly swaying floating state, enable the clamp body to have an angle suitable for a sleeve of a product, realize automatic centering of the bushing and the sleeve, further ensure that the bushing is not cut during press fitting, and realize nondestructive press fitting of the bushing.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a vertical assembly equipment of floating pincers body suitable for car sub vehicle frame bush assembly, its is used for the pressure equipment has the bush in axle center hole, its include movable support, set up in the vertical pincers body in the place ahead of movable support, coaxial line and set up relatively in upper and lower pressure head on the upper and lower both ends of the front groove of vertical pincers body, install in the upper end of the front groove of vertical pincers body on and be used for driving the vertical rectilinear motion's of upper pressure head actuating mechanism, pressure head actuating mechanism's expansion end with upper pressure head connect, in order to promote upper pressure head realize pressing in the sleeve pipe of product with the bush, its characterized in that: the device also comprises an introduction mechanism which is arranged between the movable bracket and the vertical clamp body and is used for driving the vertical clamp body to move vertically and linearly so that the lower pressure head is introduced into the bottom of the floating positioning tool for positioning the sleeve of the product, and a buffer floating mechanism which is used for enabling the vertical clamp body to be in a slightly swaying floating state in the bushing pressing process, wherein the buffer floating mechanism mainly comprises a spherical bearing arranged on the middle part of the vertical clamp body, an upper floating assembly arranged on the upper end of the vertical clamp body and a lower floating assembly arranged on the lower end of the vertical clamp body, and the spherical bearing, the upper floating assembly and the lower floating assembly are matched so that the vertical clamp body is in a front-back left-right micro floating adjusting state, so that the bushing pressing is in an optimal state.
The guiding mechanism mainly comprises a vertical sliding plate arranged between the front end of the movable support and the rear end of the vertical clamp body, a sliding plate driving mechanism used for driving the vertical sliding plate to vertically slide relative to the movable support so as to drive the vertical clamp body to vertically move linearly, a sliding plate driving mechanism arranged between the front end of the vertical sliding plate and the vertical clamp body and used for limiting the vertical sliding plate not to generate displacement in the vertical direction, and a limiting mechanism arranged between the front end of the vertical sliding plate and the vertical end of the movable support and used for limiting the vertical sliding plate not to generate displacement in the vertical direction. The linear guide rail of the first linear guide rail pair is vertically arranged at the front end of the movable support, the sliding block of the first linear guide rail pair is arranged at the rear end of the vertical sliding plate, and the movable support has a relatively large area, so that a double-rail structure can be arranged, and the sliding block can adopt an upper group and a lower group; the vertical sliding plate is utilized to drive the vertical clamp body to move relative to the movable bracket, so that the lower pressure head is led into a sleeve of a product; the limiting mechanism plays a role in connecting the vertical sliding plate with the vertical clamp body, and meanwhile, the vertical clamp body can be ensured not to generate displacement relative to the vertical sliding plate in the vertical direction.
The sliding plate driving mechanism comprises a sliding driving air cylinder, an air cylinder fixing plate and an adapter plate, wherein the air cylinder fixing plate is horizontally arranged between two side plates of the movable support, the sliding driving air cylinder is vertically arranged on the air cylinder fixing plate, a vertical strip-shaped through hole is formed in a front end plate of the movable support, an air cylinder rod of the sliding driving air cylinder is connected with one end of the adapter plate, and the other end of the adapter plate penetrates through the vertical strip-shaped through hole to be connected with the rear end of the vertical sliding plate. One of the slide plate driving mechanisms is provided, and other existing driving mechanisms capable of driving the vertical slide plate to vertically slide can be adopted; the cylinder rod of the sliding driving cylinder faces upwards and downwards, and the sliding driving cylinder is installed according to the inner space condition of the movable support.
The limiting mechanism comprises two limiting brackets, two fixing rings, a shaft and bearings, wherein the two limiting brackets are arranged on the left side and the right side of the front end of the vertical sliding plate, the bearings are sleeved outside the middle part of the shaft, the middle part of the vertical clamp body penetrates through the left side and the right side of the vertical clamp body to form shaft holes, the shaft penetrates through the shaft holes, the bearings are attached to the hole walls of the shaft holes, gaps exist between the shaft and the hole walls of the shaft holes, and the shaft ends of the shaft correspondingly penetrate through the front part of the limiting brackets and are fixed through the fixing rings. Because the bearing is attached to the hole wall of the shaft hole, the vertical clamp body cannot displace relative to the vertical sliding plate in the vertical direction; because a gap exists between the shaft and the hole wall of the shaft hole, and the shaft end of the shaft passes through the front part of the limiting bracket and is fixed through the fixing ring, the upper end or the lower end of the vertical clamp body can generate a left-right micro shake when force is respectively applied to the two sides of the upper end or the lower end of the vertical clamp body.
The bearing is the spherical bearing, the spherical bearing is provided with a bearing limiting assembly, the bearing limiting assembly comprises a pressing sleeve and two check rings, the shaft hole is a stepped hole, the pressing sleeve is arranged in a large-diameter hole of the stepped hole, one shaft end of the spherical bearing is blocked by a step of the stepped hole, the other shaft end of the spherical bearing is blocked by the pressing sleeve, the spherical bearing is limited between the step of the stepped hole and the pressing sleeve in the axial direction, the outer sides of the shaft are provided with the check rings in an abutting mode, the check rings are limited between the spherical bearing and the inner sides of the front part of the limiting support, and the spherical bearing is just positioned at the center of gravity of the vertical clamp body. The spherical bearing is well limited in the axial direction through the step of the step hole, the pressing sleeve and the two check rings, so that the spherical bearing is ensured not to generate displacement in the axial direction, the position of the spherical bearing is the gravity center position of the vertical clamp body, and the floating effect of the vertical clamp body can be optimal; the use of the spherical bearing enables the vertical clamp body to slightly shake in the front-back direction.
The upper floating component comprises an upper bracket arranged on the top of the front end of the vertical sliding plate, two upper compression bars arranged on the top of the upper bracket in a front-back mode, upper compression bars fixed on the left side and the right side of each upper bracket, upper guide posts which are vertically arranged through a top plate of the upper bracket and are in an equal number with the upper compression bars, upper top rods, a first spring and a first steel ball, wherein the upper compression bars are arranged on the upper end of the vertical sliding plate in an equal number with the upper compression bars, the upper compression bars are positioned on the same straight line, the upper compression bars are vertically fixed on the top of the upper bracket through upper nuts, the upper compression bars are provided with an axial central hole, the upper compression bars and the upper guide posts are in one-to-one correspondence and have a common axis, the upper guide posts are provided with small diameter sections and large diameter sections which are integrally connected, the first sleeve is arranged on the upper end faces of the upper compression bars, the diameter of the first sleeve is equal to the upper compression bars, the diameter of the upper compression bars is smaller than the first guide posts are in one-to-half of the diameter of the upper guide posts, the upper compression bars are arranged on the first guide posts are in the opposite to the top plate, the upper compression bars are in the first axial direction, the diameter of the upper compression bars is limited by the upper compression bars is equal to the upper compression bars, the diameter of the upper compression bars are arranged on the upper compression bars, the upper compression bars are in the corresponding to the upper compression bars, and the upper compression bars are in a diameter and the corresponding to the upper compression bars are in a common axis, and the diameter direction is, and the diameter is connected with the upper compression bar is integrally and with the upper compression bar is arranged. The first steel balls are limited in the two first hemispherical grooves which are vertically symmetrical;
the lower floating assembly comprises two lower brackets symmetrically arranged on the left side and the right side of the bottom of the front end of the vertical sliding plate, two mounting plates symmetrically arranged on the left side and the right side of the lower part of the vertical clamp body, two pressing plates symmetrically distributed on the left side and the right side of the lower part of the vertical clamp body, two lower pressing rods fixed on each pressing plate front and back, two lower guide posts vertically arranged through each lower bracket and arranged front and back, two lower top rods, a second spring and a second steel ball which are arranged on each mounting plate front and back, the lower brackets are not contacted with the side wall of the vertical clamp body, the mounting plates are positioned right above the corresponding lower brackets, the pressing plates are positioned right below the corresponding lower brackets, the pressing plates are connected with the corresponding lower brackets through connecting rods, the pressing plate is not contacted with the side wall of the vertical clamp body, the front pressing rod and the rear pressing rod on the same side are positioned on the same straight line, the pressing rods are vertically fixed on the pressing plate through lower nuts, the pressing rods are provided with axial center holes, the lower guide posts and the pressing rods are in one-to-one correspondence and coaxial, the lower guide posts are provided with small diameter sections and large diameter sections which are integrally connected, the second springs are sleeved outside the small diameter sections of the lower guide posts, the tail ends of the small diameter sections of the lower guide posts extend into the axial center holes of the pressing rods, so that the second springs are limited between the large diameter sections of the lower guide posts and the tops of the pressing rods, the large diameter sections of the lower guide posts vertically penetrate through the lower support and can move up and down relative to the lower support, the lower top ball rod and the lower guide posts are in one-to-one correspondence and coaxial, the end face of the large-diameter section of the lower guide post and the bottom surface of the lower top ball rod are both provided with second hemispherical grooves matched with the second steel balls, and the second steel balls are limited in the two second hemispherical grooves which are symmetrical up and down. When the vertical clamp body slightly shakes forwards, backwards, leftwards and rightwards, a force is applied to the first steel ball or the second steel ball, the first steel ball transmits the force to the upper guide post, the second steel ball transmits the force to the lower guide post, the upper guide post compresses the first spring, the lower guide post compresses the second spring, the first spring and the second spring recover after the bushing is pressed, and the floating tolerance of the vertical clamp body is utilized to absorb the dimensional error of the sleeve, so that the equipment is suitable for products instead of products; the first steel ball and the second steel ball have the function of ensuring that the vertical clamp body has a spherical surface to move when floating, and can return to the original position after the vertical clamp body is floated; the first spring and the second spring are used for balancing the integral gravity formed by other parts on the vertical clamp body and guaranteeing a restoring force for the vertical clamp body after floating; the upper nut can adjust the tensioning state of the first spring, the lower nut can adjust the tensioning state of the second spring, and the shaking amplitude of the vertical clamp body is adjusted through the upper nut and the lower nut; the spring forces of the first and second springs are accounted for.
The pressure head driving mechanism mainly comprises a pressure head driving cylinder and a guide seat, wherein the pressure head driving cylinder is vertically arranged, a cylinder body of the pressure head driving cylinder is arranged at the upper end of a front groove of the vertical clamp body, the free end of a cylinder rod is used as the movable end of the pressure head driving mechanism to be connected with the top of the guide seat, the upper pressure head is connected to the bottom of the guide seat, and the rear end of the guide seat is connected with the bottom of the front groove of the vertical clamp body through a second linear guide pair. The pressure head driving cylinder is utilized to push the guide seat to drive the upper pressure head to linearly move; the linear guide rail of the second linear guide rail pair is arranged on the bottom of the front groove of the vertical clamp body, and the sliding block of the second linear guide rail pair is arranged on the rear end of the guide seat.
The device also comprises a bracket driving mechanism for pushing the movable bracket to move horizontally so that the upper pressure head and the lower pressure head are opposite to the sleeve of the product, wherein the bracket driving mechanism mainly comprises a horizontal base, a horizontal sliding plate and a horizontal pushing air cylinder, the horizontal base is fixed on a working platform, the horizontal sliding plate is arranged above the horizontal base, the bottom end surface of the horizontal sliding plate is connected with the top end surface of the horizontal base through a third linear guide rail pair, the bottom of the movable bracket is fixedly connected with the top end surface of the horizontal sliding plate, the horizontal pushing air cylinder is horizontally arranged on the horizontal base, and an air cylinder rod of the horizontal pushing air cylinder is connected with one side plate of the movable bracket so as to push the movable bracket to move horizontally back and forth on the horizontal base. The vertical clamp body is horizontally moved to a product position by utilizing a bracket driving mechanism, so that an upper pressure head and a lower pressure head are opposite to a sleeve of the product; the linear guide rail of the third linear guide rail pair is arranged on the top end surface of the horizontal base, and the sliding block of the third linear guide rail pair is arranged on the bottom end surface of the horizontal sliding plate.
The front end side of the horizontal base is provided with a limit seat, the limit seat is fixed on the operation platform, the limit seat is horizontally provided with an adjusting rod for adjusting the maximum distance of the movable support moving horizontally towards the product direction, and the rear end face of the adjusting rod is used for being abutted with the front end face of the horizontal sliding plate. The arrangement of the limiting seat and the adjusting rod enables the equipment to be mounted on different operation platforms more flexibly, and avoids interaction with other product processing equipment on the operation platforms; meanwhile, the maximum moving distance of the horizontal sliding plate to the product direction can be limited by adjusting the adjusting rod, so that the upper pressure head and the lower pressure head can be ensured to be opposite to the sleeve of the product after the maximum moving distance of the horizontal sliding plate is calculated.
Compared with the prior art, the invention has the advantages that:
1) The guide mechanism is used for guiding the lower pressing head into the bottom of a floating positioning tool for positioning the sleeve of a product, so that the sleeve is roughly aligned, then the pressing head is used for driving the upper pressing head to press the sleeve into the sleeve, in the pressing process, the buffer floating mechanism mainly composed of a spherical bearing arranged on the middle part of the vertical clamp body, an upper floating assembly arranged on the upper end of the vertical clamp body and a lower floating assembly arranged on the lower end of the vertical clamp body enables the vertical clamp body to be in a front-back left-right micro-motion floating adjustment state, so that the sleeve press-fitting is in an optimal state, the vertical clamp body can present an angle suitable for the sleeve of the product, the automatic centering of the sleeve and the sleeve is realized, the edge cutting of the sleeve can not be damaged during the press-fitting, and the defects of the sleeve such as the shape and position tolerance and the position degree of the sleeve are difficult to ensure, the center mandrel misalignment or the edge cutting and the fracturing of the sleeve caused by the welding deformation of the product are overcome.
2) The equipment aligns the center through the mechanical floating structure, namely the buffering floating mechanism, is simple in centering, ensures the stability of press fitting and the quality of products, and accordingly improves productivity beats.
3) The vertical pliers in the equipment can be at a sleeve angle suitable for the product, namely, the equipment is suitable for the product, the adaptability is high, the tolerance of the equipment is improved, the stability and the press-fit quality of the equipment are improved, defective products generated in the press-fit process are reduced, and the development cost is reduced.
4) The automatic centering device realizes the automatic centering of the bushing and the sleeve, effectively avoids unstable factors such as large space position deviation and the like of the sleeve of the welding part, and ensures the bushing to be pressed without damage.
5) The device can be used for pressing the lining in place at one time, and the stability, consistency and quality of the product are improved.
6) The device is good in one-time debugging, and can maintain the floating effect regularly, so that the workload of a fitter in the process of bushing assembly is reduced.
7) Buffer float mechanism's floating range: the angle deviation (space) is less than or equal to + -3 degrees, and the displacement deviation (x, y, z) is less than or equal to + -3 mm.
Drawings
FIG. 1 is a schematic view of the whole structure of a floating caliper vertical assembly apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic diagram showing the overall structure of the floating caliper vertical assembly apparatus according to the present invention;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is an enlarged schematic view of portion C of FIG. 3;
FIG. 6 is a schematic diagram III of the overall structure of the floating caliper vertical assembly apparatus of the present invention;
FIG. 7 is a front view of the floating caliper body vertical assembly apparatus of the present invention;
FIG. 8 is a schematic view in section D-D of FIG. 7;
FIG. 9 is an enlarged schematic view of portion E of FIG. 8;
fig. 10 is a schematic view of a partial structure (partial explosion) of the floating caliper body vertical type assembling apparatus of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The invention provides floating clamp body vertical assembly equipment suitable for automobile auxiliary frame bushing assembly, as shown in the figure, the equipment is used for pressing a bushing with an axle center hole, the equipment comprises a movable support 1, a vertical clamp body 2 arranged in front of the movable support 1, an upper pressure head 3 and a lower pressure head 4 coaxially and oppositely arranged on the upper end and the lower end of a front groove 21 of the vertical clamp body 2, a pressure head driving mechanism 5 arranged on the upper end of the front groove 21 of the vertical clamp body 2 and used for driving the upper pressure head 3 to vertically and linearly move, the movable end of the pressure head driving mechanism 5 is connected with the upper pressure head 3 so as to push the upper pressure head 3 to press the bushing into a sleeve of a product, the equipment also comprises an introduction mechanism 6 arranged between the movable support 1 and the vertical clamp body 2 and used for driving the vertical and linearly moving the lower pressure head 4 vertically to introduce the floating positioning tool for positioning the sleeve of the product, a buffer floating mechanism 7 used for enabling the vertical clamp body 2 to be in a micro-shaking floating state in the bushing pressing process, and a left end and a right end of the buffer floating mechanism 73 are mainly arranged on the upper end of the vertical clamp body 2 and a spherical surface of the upper clamp body 71 and a lower end of the vertical clamp body 2 are arranged on the upper end of the vertical clamp assembly 72, so that the upper end of the vertical clamp assembly is in an optimal floating assembly is in a state.
The specific scheme is as follows: the guiding mechanism 6 mainly comprises a vertical sliding plate 61 arranged between the front end of the movable bracket 1 and the rear end of the vertical clamp body 2, a sliding plate driving mechanism 62 for driving the vertical sliding plate 61 to vertically slide relative to the movable bracket 1 so as to drive the vertical clamp body 2 to vertically and linearly move so as to lead the lower pressing head 4 into the bottom of the floating positioning tool for positioning the sleeve of the product, and a limiting mechanism 63 arranged between the front end of the vertical sliding plate 61 and the vertical clamp body 2 and used for limiting the vertical clamp body 2 not to generate displacement relative to the vertical sliding plate 61 in the vertical direction, wherein the rear end of the vertical sliding plate 61 is connected with the front end of the movable bracket 1 through a first linear guide rail pair 64. Here, the linear guide rail of the first linear guide rail pair 64 is vertically installed on the front end of the movable bracket 1, and the sliding block of the first linear guide rail pair 64 is installed on the rear end of the vertical sliding plate 61, and since the relative area of the movable bracket 1 is large, a double-rail structure can be provided, and the sliding block can be in two groups, namely, an upper group and a lower group; the vertical sliding plate 61 is utilized to drive the vertical clamp body 2 to move relative to the movable bracket 1, so that the lower pressure head 4 is led into a sleeve of a product; the limiting mechanism 63 plays a role in connecting the vertical sliding plate 61 with the vertical clamp body 2, and meanwhile, the vertical clamp body 2 can be ensured not to generate displacement in the vertical direction relative to the vertical sliding plate 61.
Further defined, the slide plate driving mechanism 62 includes a slide driving cylinder 621, a cylinder fixing plate 622 and an adapter plate 623, the cylinder fixing plate 622 is horizontally mounted between two side plates of the movable support 1, the slide driving cylinder 621 is vertically mounted on the cylinder fixing plate 622, a vertical elongated through hole 11 is formed in a front end plate of the movable support 1, a cylinder rod of the slide driving cylinder 621 is connected with one end of the adapter plate 623, and the other end of the adapter plate 623 passes through the vertical elongated through hole 11 to be connected with a rear end of the vertical slide plate 61. One of the slide plate driving mechanisms 62 is shown here, but other existing driving mechanisms capable of driving the vertical slide plate 61 to slide vertically can be adopted; the cylinder rod of the slide driving cylinder 621 may be directed upward and downward, and the slide driving cylinder 621 may be installed depending on the inner space of the movable bracket 1.
An optimized scheme is as follows: the limiting mechanism 63 comprises two limiting brackets 631, two fixing rings 632, a shaft 633 and bearings 634, the two limiting brackets 631 are arranged on the left side and the right side of the front end of the vertical sliding plate 61, the bearings 634 are sleeved outside the middle part of the shaft 633, the shaft holes 22 are formed in the middle of the vertical clamp body 2 in a penetrating mode, the shaft 633 penetrates through the shaft holes 22, the bearings 634 are attached to the hole walls of the shaft holes 22, gaps exist between the shaft 633 and the hole walls of the shaft holes 22, and the shaft ends of the shaft 633 correspondingly penetrate through the front parts of the limiting brackets 631 and are fixed through the fixing rings 632. Because the bearing 634 is attached to the hole wall of the shaft hole 22, the vertical clamp body 2 does not generate displacement relative to the vertical sliding plate 61 in the vertical direction; since a gap exists between the shaft 633 and the hole wall of the shaft hole 22, and the shaft end of the shaft 633 passes through the front portion of the limiting bracket 631 and is fixed by the fixing ring 632, a minute shake occurs when the upper end or the lower end of the vertical clamp body 2 is respectively forced.
An optimized scheme is as follows: the bearing 634 is a spherical bearing 71, namely the same component, the spherical bearing 71 is provided with a bearing limiting component, the bearing limiting component comprises a pressing sleeve 741 and two check rings 742, the shaft hole 22 is a step hole, the pressing sleeve 741 is arranged in a large diameter hole 221 of the step hole, one shaft end of the spherical bearing 71 is blocked by a step 222 of the step hole, the other shaft end of the spherical bearing 71 is blocked by the pressing sleeve 741, the spherical bearing 71 is limited between the step 222 of the step hole and the pressing sleeve 741 in the axial direction, the outer sides of the shaft 633 are positioned on two sides of the spherical bearing 71 in a fitting manner, the check rings 742 are limited between the spherical bearing 71 and the inner sides of the front part of the limiting support 631, the spherical bearing 71 is just positioned on the center of gravity position of the vertical clamp body 2, a gap exists between the inner peripheral wall of the pressing sleeve 741 and the outer peripheral wall of the large diameter hole 221 of the step hole, and a gap exists between the inner peripheral wall of the small diameter hole 223 of the step hole and the check rings 742. The spherical bearing 71 is well limited in the axial direction through the step 222 of the step hole, the pressing sleeve 741 and the two check rings 742, the spherical bearing 71 is ensured not to generate displacement in the axial direction, the position of the spherical bearing 71 is the gravity center position of the vertical clamp body 2, and the floating effect of the vertical clamp body 2 can be optimal; the use of the spherical bearing 71 allows the vertical caliper body 2 to shake slightly in the front-rear direction.
The specific scheme is as follows: the upper floating assembly 72 comprises an upper bracket 721 mounted on the top of the front end of the vertical sliding plate 61, two upper compression rods 723 which are arranged on the top of the upper bracket 721 in a front-back mode, an upper compression rod 723 which is fixed on the left side and the right side of each portal 722, a small diameter section 7241 and a large diameter section 7242 which are vertically arranged through the top plate of the upper bracket 721 and are in the same number as the upper compression rod 723, an upper top ball rod 725 which is arranged on the upper end of the vertical clamp body 2 and is in the same number as the upper compression rod 723, a first spring 726 and a first steel ball 727, wherein the upper bracket 721 is arranged right above the upper end of the vertical clamp body 2, the front upper compression rod 723 and the rear upper compression rod 723 on the same straight line are positioned on the same straight line, the upper compression rod 723 is vertically fixed on the upper compression rod 722 through an upper nut 728, the upper compression rod 723 is provided with an axial central hole 7231, the upper compression rod 723 corresponds to the upper compression rod 724 in a one-to-one mode and is coaxial, the upper compression rod 724 is provided with the small diameter section 7241 and the large diameter section 7242 which are integrally connected, the first spring 726 is sleeved outside the small diameter section 7241 and the small diameter section 7241 of the upper compression rod 724, the tail end of the upper compression rod 7241 extends into the upper section 724 is in the same number as the first steel ball 727, the upper compression rod 7242 is correspondingly arranged on the upper half-diameter section 729, and the upper compression rod 7242 is positioned in the upper compression rod 729 and the upper compression rod 729 is opposite to the upper end of the upper compression rod 727, which corresponds to the upper compression rod 727, and the upper compression rod is positioned on the upper end of the upper compression rod 727; the lower floating assembly 73 includes two lower brackets 731 symmetrically installed on left and right sides of a front bottom of the vertical sliding plate 61, two mounting plates 732 symmetrically installed on left and right sides of a lower portion of the vertical clamp body 2, two pressing plates 733 symmetrically distributed on left and right sides of the lower portion of the vertical clamp body 2, two pressing rods 734 fixed front and rear on each pressing plate 733, two lower guide posts 735 vertically disposed through each lower bracket 731 and arranged front and rear, two lower top bars 736 disposed front and rear on each mounting plate 732, a second spring 737 and a second steel ball 738, the lower brackets 731 and side walls of the vertical clamp body 2 are not in contact with each other, the mounting plates 732 are located right above the corresponding lower brackets 731, the pressing plates 733 are located right below the corresponding lower brackets 731, the pressing plates 733 are connected with the corresponding lower brackets through connecting rods 7331, the pressing plate 733 and the side wall of the vertical clamp body 2 are not contacted with each other, the front and rear lower pressing rods 734 on the same side are positioned on the same straight line, the lower pressing rods 734 are vertically fixed on the pressing plate 733 through lower nuts 739, the lower pressing rods 734 are provided with an axial center hole 7341, the lower pressing rods 735 and the lower pressing rods 734 are in one-to-one correspondence and coaxial, the lower pressing rods 735 are provided with integrally connected small diameter sections 7351 and large diameter sections 7352, the second springs 737 are sleeved outside the small diameter sections 7351 of the lower pressing rods 735, the tail ends of the small diameter sections 7351 of the lower pressing rods 735 extend into the axial center hole 7341 of the lower pressing rods 734, the second springs 737 are limited between the large diameter sections 7352 of the lower pressing rods 735 and the tops of the lower pressing rods 734, the large diameter sections 7352 of the lower pressing rods 735 vertically penetrate through the lower supports 731 and can move up and down relative to the lower supports 731, the lower top ball rods 736 and the lower pressing rods 735 are in one-to-and-to-one correspondence and coaxial, the end face of the large diameter section 7352 of the lower guide pole 735 and the bottom surface of the lower top club 736 are provided with second hemispherical grooves 730 which are matched with second steel balls 738, and the second steel balls 738 are limited in the two second hemispherical grooves 730 which are symmetrical up and down. When the vertical clamp body 2 slightly shakes forwards, backwards, leftwards and rightwards, forces are applied to the first steel balls 727 or the second steel balls 738, the first steel balls 727 transmit force to the upper guide post 724 and the second steel balls 738 transmit force to the lower guide post 735, the upper guide post 724 compresses the first spring 726 and the lower guide post 735 compresses the second spring 737, after the bushing is pressed, the first spring 726 and the second spring 737 are restored, and the floating tolerance of the vertical clamp body 2 is absorbed by the first spring 726 and the second spring 737 to absorb the dimensional error of the bushing, so that the equipment is suitable for products instead of products; the first steel ball 727 and the second steel ball 738 have the function of ensuring that the vertical clamp body 2 has a spherical surface movement when floating, and can return to the original position after the vertical clamp body 2 is floated; the first spring 726 and the second spring 737 are used for balancing the gravity of the vertical clamp body 2 and the whole formed by other parts on the vertical clamp body 2 and guaranteeing a restoring force to the vertical clamp body 2 after floating; the upper nut 728 can adjust the tensioning state of the first spring 726, the lower nut 739 can adjust the tensioning state of the second spring 737, and the shaking amplitude of the vertical clamp body 2 is adjusted through the upper nut 728 and the lower nut 739; the spring force of the first spring 726 and the second spring 737 is accounted for.
Further limited, the ram driving mechanism 5 mainly comprises a ram driving cylinder 51 and a guide seat 52, the ram driving cylinder 51 is vertically installed, a cylinder body of the ram driving cylinder 51 is installed on the upper end of the front groove 21 of the vertical clamp body 2, the free end of a cylinder rod is used as the movable end of the ram driving mechanism 5 to be connected with the top of the guide seat 52, the upper ram 3 is connected to the bottom of the guide seat 52, and the rear end of the guide seat 52 is connected with the bottom of the front groove 21 of the vertical clamp body 2 through a second linear guide pair 53. The guide seat 52 is pushed by the pressure head driving cylinder 51 to drive the upper pressure head 3 to linearly move; the linear guide rail of the second linear guide rail pair 53 is arranged on the bottom of the front groove 21 of the vertical clamp body 2, and the sliding block of the second linear guide rail pair 53 is arranged on the rear end of the guide seat 52.
An optimized scheme is as follows: the device also comprises a bracket driving mechanism 8 for pushing the movable bracket 1 to horizontally move so that the upper pressure head 3 and the lower pressure head 4 are opposite to the sleeve of the product, wherein the bracket driving mechanism 8 mainly comprises a horizontal base 81, a horizontal sliding plate 82 and a horizontal pushing air cylinder 83, the horizontal base 81 is fixed on an operation platform, the horizontal sliding plate 82 is arranged above the horizontal base 81, the bottom end surface of the horizontal sliding plate 82 is connected with the top end surface of the horizontal base 81 through a third linear guide rail pair 84, the bottom of the movable bracket 1 is fixedly connected with the top end surface of the horizontal sliding plate 82, the horizontal pushing air cylinder 83 is horizontally arranged on the horizontal base 81, and an air cylinder rod of the horizontal pushing air cylinder 83 is connected with one side plate of the movable bracket 1 so as to push the movable bracket 1 to horizontally move back and forth on the horizontal base 81. The vertical clamp body 2 is horizontally moved to a product position by utilizing a bracket driving mechanism 8, so that the upper pressure head 3 and the lower pressure head 4 are opposite to a sleeve of the product; the linear guide of the third linear guide pair 84 is provided on the top end surface of the horizontal base 81, and the slider of the third linear guide pair 84 is provided on the bottom end surface of the horizontal slide plate 82.
Further defined, a limit seat 85 is provided at the front end side of the horizontal base 81, the limit seat 85 is fixed on the working platform, an adjusting lever 86 for adjusting the maximum distance of the movable bracket 1 moving horizontally in the product direction is horizontally provided on the limit seat 85, and the rear end surface of the adjusting lever 86 is used for abutting against the front end surface of the horizontal slide plate 82. Here, the position of the device mounted on different operation platforms is more flexible due to the arrangement of the limiting seat 85 and the adjusting rod 86, so that the device is prevented from interfering with other product processing devices on the operation platforms; and meanwhile, the maximum moving distance of the horizontal sliding plate 82 towards the product direction can be limited by adjusting the adjusting rod 86, so that the upper pressing head 3 and the lower pressing head 4 can be ensured to be opposite to the sleeve of the product after the horizontal sliding plate 82 moves by the maximum distance through calculation.
In each scheme, the material of the vertical clamp body 2 can be selected through finite element analysis, and under the action of 80KN force, the vertical clamp body 2 can meet the requirement of stress analysis by adopting 42CrMo material, and the cost is low; the structure of the lower pressure head 4 is not limited, and the lower pressure head 4 can be provided with a pressure sensor as long as the lower pressure head can be guided into the bottom of a floating positioning tool for positioning a sleeve of a product, and the pressure can be monitored in real time; the upper ram 3 is actually a shaft for guiding, which can extend into the sleeve of the product, which takes the tolerances.
In each scheme, each driving cylinder adopts the existing cylinder; each driving mechanism can be provided with a hydraulic buffer and a drag chain structure, and the hydraulic buffer and the drag chain structure can be adaptively installed according to the whole structure.
The working principle of the equipment is as follows: the vertical slide plate 61 is driven by the slide plate driving mechanism 62 to drive the vertical clamp body 2 to move linearly, so that the lower pressure head 4 is led into the bottom of a floating positioning tool for positioning a sleeve of a product, and coarse alignment is realized; then the upper pressure head 3 is driven by the pressure head driving cylinder 51 to press the bushing into the sleeve, and under the action of the spherical bearing 71, the upper floating assembly 72 and the lower floating assembly 73 in the process of pressing the bushing into the sleeve, the vertical clamp body 2 is in a micro-shaking floating state, so that the vertical clamp body 2 has a sleeve angle which is suitable for products, the automatic centering of the bushing and the sleeve is realized, the bushing is prevented from being cut during the pressing, and the nondestructive pressing of the bushing is realized.

Claims (9)

1. The utility model provides a vertical assembly equipment of floating pincers body suitable for car sub vehicle frame bush assembly, its is used for the pressure equipment has the bush in axle center hole, its include movable support, set up in the vertical pincers body in the place ahead of movable support, coaxial line and set up relatively in upper and lower pressure head on the upper and lower both ends of the front groove of vertical pincers body, install in the upper end of the front groove of vertical pincers body on and be used for driving the vertical rectilinear motion's of upper pressure head actuating mechanism, pressure head actuating mechanism's expansion end with upper pressure head connect, in order to promote upper pressure head realize pressing in the sleeve pipe of product with the bush, its characterized in that: the device also comprises an introduction mechanism which is arranged between the movable bracket and the vertical clamp body and is used for driving the vertical clamp body to move vertically and linearly so that the lower pressure head is introduced into the bottom of the floating positioning tool for positioning the sleeve of the product, and a buffer floating mechanism which is used for enabling the vertical clamp body to be in a slightly swaying floating state in the bushing pressing process, wherein the buffer floating mechanism mainly comprises a spherical bearing arranged on the middle part of the vertical clamp body, an upper floating assembly arranged on the upper end of the vertical clamp body and a lower floating assembly arranged on the lower end of the vertical clamp body, and the spherical bearing, the upper floating assembly and the lower floating assembly are matched so that the vertical clamp body is in a front-back left-right micro floating adjusting state, so that the bushing pressing is in an optimal state.
2. The floating clamp body vertical assembly device suitable for assembling the auxiliary frame bushing of the automobile according to claim 1, wherein the guiding mechanism mainly comprises a vertical sliding plate arranged between the front end of the movable bracket and the rear end of the vertical clamp body, a sliding plate driving mechanism used for driving the vertical sliding plate to vertically slide relative to the movable bracket so as to drive the vertical clamp body to vertically and linearly move, a sliding plate driving mechanism arranged between the front end of the vertical sliding plate and the vertical clamp body and used for limiting the vertical clamp body from generating displacement relative to the vertical sliding plate, and a first linear guide rail pair is connected between the rear end of the vertical sliding plate and the front end of the movable bracket.
3. The vertical assembly equipment of the floating clamp body, which is suitable for the assembly of the auxiliary frame bushing of the automobile, according to claim 2, is characterized in that the sliding plate driving mechanism comprises a sliding driving air cylinder, an air cylinder fixing plate and an adapter plate, wherein the air cylinder fixing plate is horizontally arranged between two side plates of the movable support, the sliding driving air cylinder is vertically arranged on the air cylinder fixing plate, a front end plate of the movable support is provided with a vertical strip-shaped through hole, an air cylinder rod of the sliding driving air cylinder is connected with one end of the adapter plate, and the other end of the adapter plate passes through the vertical strip-shaped through hole to be connected with the rear end of the vertical sliding plate.
4. The floating clamp body vertical assembly device suitable for the assembly of the auxiliary frame bushing of the automobile according to claim 2, wherein the limiting mechanism comprises two limiting brackets, two fixing rings, a shaft and bearings, the two limiting brackets are arranged on the left side and the right side of the front end of the vertical sliding plate, the bearings are sleeved outside the middle part of the shaft, shaft holes are formed in the middle part of the vertical clamp body in a penetrating mode through the left side and the right side of the vertical clamp body, the shaft penetrates through the shaft holes, the bearings are attached to the hole walls of the shaft holes, gaps exist between the shaft and the hole walls of the shaft holes, and the shaft ends of the shaft correspondingly penetrate through the front part of the limiting brackets and are fixed through the fixing rings.
5. The floating caliper body vertical assembly equipment suitable for assembling the auxiliary frame bushing of the automobile according to claim 4, wherein the bearing is the spherical bearing, the bearing limiting assembly is configured with a bearing limiting assembly, the bearing limiting assembly comprises a pressing sleeve and two check rings, the shaft hole is a stepped hole, the pressing sleeve is arranged in a large-diameter hole of the stepped hole, one shaft end of the spherical bearing is blocked by a step of the stepped hole, the other shaft end of the spherical bearing is blocked by the pressing sleeve, the spherical bearing is limited between the step of the stepped hole and the pressing sleeve in the axial direction, the check rings are sleeved on two sides of the spherical bearing in a fitting manner outside the shaft, the check rings are limited between the spherical bearing and the inner side of the front part of the limiting support, and the spherical bearing is just positioned on the gravity center position of the vertical caliper body.
6. The floating caliper body vertical assembly equipment for assembling the auxiliary frame bushing of the automobile according to claim 4 or 5, wherein the upper floating assembly comprises an upper bracket installed on the top of the front end of the vertical sliding plate, two door frames arranged on the top of the upper bracket in a front-back mode, upper compression rods fixed on the left side and the right side of each door frame, upper guide posts vertically arranged through the top plate of the upper bracket and having the same number as the upper compression rods, upper top rods arranged on the upper end of the vertical caliper body and having the same number as the upper compression rods, a first spring and a first steel ball, wherein the upper bracket is arranged right above the upper end of the vertical caliper body, and the upper compression rods are arranged on the same straight line on the same side in a front-back mode, the upper compression bar is vertically fixed on the portal through an upper nut, the upper compression bar is provided with an axial central hole, the upper compression bar and the upper guide post are in one-to-one correspondence and coaxial, the upper guide post is provided with a small diameter section and a large diameter section which are integrally connected, the first spring is sleeved outside the small diameter section of the upper guide post, the tail end of the small diameter section of the upper guide post stretches into the axial central hole of the upper compression bar, the first spring is limited between the large diameter section of the upper guide post and the bottom of the upper compression bar, the large diameter section of the upper guide post vertically penetrates through the top plate of the upper bracket and can move up and down relative to the top plate of the upper bracket, the upper guide post and the upper top ball rod are in one-to-one correspondence and coaxial, the end face of the large-diameter section of the upper guide post and the top surface of the upper top club are both provided with first hemispherical grooves matched with the first steel balls, and the first steel balls are limited in the two first hemispherical grooves which are vertically symmetrical;
the lower floating assembly comprises two lower brackets symmetrically arranged on the left side and the right side of the bottom of the front end of the vertical sliding plate, two mounting plates symmetrically arranged on the left side and the right side of the lower part of the vertical clamp body, two pressing plates symmetrically distributed on the left side and the right side of the lower part of the vertical clamp body, two lower pressing rods fixed on each pressing plate front and back, two lower guide posts vertically arranged through each lower bracket and arranged front and back, two lower top rods, a second spring and a second steel ball which are arranged on each mounting plate front and back, the lower brackets are not contacted with the side wall of the vertical clamp body, the mounting plates are positioned right above the corresponding lower brackets, the pressing plates are positioned right below the corresponding lower brackets, the pressing plates are connected with the corresponding lower brackets through connecting rods, the pressing plate is not contacted with the side wall of the vertical clamp body, the front pressing rod and the rear pressing rod on the same side are positioned on the same straight line, the pressing rods are vertically fixed on the pressing plate through lower nuts, the pressing rods are provided with axial center holes, the lower guide posts and the pressing rods are in one-to-one correspondence and coaxial, the lower guide posts are provided with small diameter sections and large diameter sections which are integrally connected, the second springs are sleeved outside the small diameter sections of the lower guide posts, the tail ends of the small diameter sections of the lower guide posts extend into the axial center holes of the pressing rods, so that the second springs are limited between the large diameter sections of the lower guide posts and the tops of the pressing rods, the large diameter sections of the lower guide posts vertically penetrate through the lower support and can move up and down relative to the lower support, the lower top ball rod and the lower guide posts are in one-to-one correspondence and coaxial, the end face of the large-diameter section of the lower guide post and the bottom surface of the lower top ball rod are both provided with second hemispherical grooves matched with the second steel balls, and the second steel balls are limited in the two second hemispherical grooves which are symmetrical up and down.
7. The vertical assembly equipment for the floating clamp body, which is suitable for the assembly of the auxiliary frame bushing of the automobile, is characterized in that the pressure head driving mechanism mainly comprises a pressure head driving cylinder and a guide seat, the pressure head driving cylinder is vertically arranged, a cylinder body of the pressure head driving cylinder is arranged at the upper end of a front groove of the vertical clamp body, the free end of a cylinder rod is used as the movable end of the pressure head driving mechanism to be connected with the top of the guide seat, the upper pressure head is connected to the bottom of the guide seat, and the rear end of the guide seat is connected with the bottom of the front groove of the vertical clamp body through a second linear guide rail pair.
8. The vertical assembly equipment for the floating clamp body, which is suitable for the assembly of the auxiliary frame bushing of the automobile, is characterized by further comprising a bracket driving mechanism for pushing the movable bracket to move horizontally so that the upper pressure head and the lower pressure head face a sleeve of a product, wherein the bracket driving mechanism mainly comprises a horizontal base, a horizontal sliding plate and a horizontal pushing air cylinder, the horizontal base is fixed on a working platform, the horizontal sliding plate is arranged above the horizontal base, the bottom end surface of the horizontal sliding plate is connected with the top end surface of the horizontal base through a third linear guide rail pair, the bottom of the movable bracket is fixedly connected with the top end surface of the horizontal sliding plate, the horizontal pushing air cylinder is horizontally arranged on the horizontal base, and an air cylinder rod of the horizontal pushing air cylinder is connected with a side plate of the movable bracket so as to push the movable bracket to move horizontally back and forth on the horizontal base.
9. The vertical assembly equipment for the floating caliper body, which is suitable for the assembly of the auxiliary frame bushing of the automobile, according to claim 8, is characterized in that a limiting seat is arranged at the front end side of the horizontal base, the limiting seat is fixed on the operating platform, an adjusting rod for adjusting the maximum distance of the movable support moving horizontally towards the product direction is horizontally arranged on the limiting seat, and the rear end face of the adjusting rod is used for being abutted with the front end face of the horizontal sliding plate.
CN202310106031.4A 2023-02-03 2023-02-03 Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing Pending CN116252134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310106031.4A CN116252134A (en) 2023-02-03 2023-02-03 Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310106031.4A CN116252134A (en) 2023-02-03 2023-02-03 Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing

Publications (1)

Publication Number Publication Date
CN116252134A true CN116252134A (en) 2023-06-13

Family

ID=86685843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310106031.4A Pending CN116252134A (en) 2023-02-03 2023-02-03 Floating clamp body vertical assembly equipment suitable for assembling automobile auxiliary frame bushing

Country Status (1)

Country Link
CN (1) CN116252134A (en)

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