CN102091928A

CN102091928A - Mobile bearing press

Info

Publication number: CN102091928A
Application number: CN2009102582805A
Authority: CN
Inventors: 刘昶; 严兵; 张公海
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2009-12-15
Filing date: 2009-12-15
Publication date: 2011-06-15
Anticipated expiration: 2029-12-15
Also published as: CN102091928B

Abstract

The invention relates to a mobile bearing press which is used for a pressing axle reducer assembly bearing. A pneumatic pressing machine adopts a gas-liquid booster cylinder and is movably hung on a guiding rail, and a counter force rod mechanism is connected with the pneumatic pressing machine. When in pressing, a press block inlaid with a magnet is connected with a shaft by a screw, an outer ring of the bearing is adsorbed on the press block, a handle of the counter force rod mechanism is rotated, and a clamping jaw extends out to hook the inner end surface of a reducer shell bearing saddle hole so as to finish the bearing pressing under the action of the booster cylinder. Due to the pneumatic pressing and hanging, the whole press is light, can move freely on the preset guiding rail and cover a plurality of assembly trolleys, and can press bearings synchronously with the assembly line under the condition of occupying the space beside the assembly line as little as possible; the mobile bearing press can press bearings instead of manual beating, and improve the assembling quality of the assembly line; the mobile bearing press improves the traditional assembly line of bearing pressing and guarantees smooth and consistent pressing process under harsh requirements of the field conditions; and the mobile bearing press reduces the labor intensity of operators.

Description

Mobile bearing press

Technical field

The bearing press mounting device, particularly vehicle bridge that the present invention relates to assembly parts assembling in the automobile manufacturing field subtracts the main cone bearing press in the general assembly process.

Background technology

Automotive axle subtracts in the general assembly operation, needs the main cone bearing press mounting in the dead eye that subtracts shell inside.At present, vehicle bridge subtracts general assembly and has all realized the assembly line continuous productive process, every line is provided with the some covers of flow circuit anchor clamps and some stations is set, and anchor clamps begin to circulate when assembly line starts, and finishes assembling action separately under the online body designs fix of each station beat.The existing shell end bearing that subtracts press-fits two kinds of forms of general employing: 1, strike dress (subtract on the dolly that always is fixed in loop wire, dolly moves along loop wire, can't arrange the fixed hydraulic machine in the online body, can only adopt manually and knock) manually; 2, fixedly station is provided with pressing machine fixed point and press-fits (will subtract shell and hang on the hydraulic press, bearing is pressed onto the position by hydraulic press then hang on the assembling loop wire) again.Above dual mode all exists certain applied defect or restriction.Strike the dress bearing manually: owing to manually knock the uncontrollable of strength and knock the inequality of strength, under the influence that is subjected to artificial uncertain factor, cause damage the early stage of bearing assembling easily, cause car load assembling rear bearing initial failure; And press-fit the standard that can guarantee bearing press mounting, the artificial uncertain factor influence of having stopped to strike manually dress with the pressing machine fixed point of fixedly station setting, but stationary press fixed point press-fits service condition certain limitation: a, fixedly pressing machine just must be included the technological design scope at assembly line production line first stage of construction, install synchronously during with the assembly line Installation and Debugging, be not difficult to independent the interpolation if consider the later stage early stage; B, fixedly pressing machine is fit to have fixedly inhuman power-actuated assembly line of beat, and requires each anchor clamps station accurately to locate, and the anchor clamps dolly is had relatively high expectations, and can't use for the assembly line that easy manpower promotes Assembling bogie; Simultaneously, the counter-force that the existing fixed pressing machine produces when pressing bearing can only be overcome by part or equipment, has a strong impact on bearing and pressing machine life-span.

Summary of the invention

For overcoming the deficiency of existing bearing technology of pressure mounting, goal of the invention of the present invention is to provide a kind of mobile bearing press, in the capable clamp movement process of assembly line, finish the bearing press mounting action, substitute and traditional to strike the dress bearing manually and fixing pressing machine fixed point press-fits, to improve assembly line bearing press mounting quality, be convenient to traditional assembly line and improve, guarantee to press-fit the smoothness of process.

For achieving the above object, the technical solution adopted in the present invention is: pneumatic press machine is installed on the guide rail by suspended portion, and the counter-force linkage is connected with pneumatic press machine; Be the suspension type removable frame between pneumatic press machine and the suspended portion, adopt the gas-liquid pressure-boosting cylinder, suspended portion adopts and can move, realize to move the pneumatic suspension secondary balancer that press-fits, also can move up and down on guide rail.

The movable support hook of described counter-force linkage is connected with the pressure head body by bearing pin, and the bottom of support hook is a hook-shape structure, and the torque spring that support hook can be bounced back automatically has been installed on the bearing pin, and torque spring is installed blanking cover outward; The pressure head body is connected with pneumatic press machine with connector by connecting plate, between connecting plate bottom and the pressure head body latch segment is housed, with thread forms handle is installed on the latch segment, the latch segment below has makes the elastic steel ball that rotates freely in the circular trough of latch segment on the pressure head body, latch segment is provided with uniform involute annulus gathering sill, support hook on the circumference uniform 3 and more than, involute on latch segment circle gathering sill is that insert in the gathering sill upper end of three support hook; Axle is connected with the cylinder piston of pneumatic press machine, can slide up and down in the pressure head body, studs with magnet in the briquetting, is connected with axle with connector by elastic expansion-sleeve, sleeve, end cap, adjusting pad.

During pressing bearing, the briquetting that studs with magnet is passed through elastic expansion-sleeve, sleeve, end cap, adjusting pad is connected with axle with screw, pressing the other cylinder rising button of pneumatic press machine control box left handle rises body, promote assembly line anchor clamps dolly and workpiece to work station, bearing outer ring is adsorbed on the magnetic briquetting, press the other cylinder decline button of left handle, rely on the counter-force linkage at the coarse positioning that subtracts on the shell, counter-force linkage handle turns clockwise after decline puts in place, the claw of counter-force linkage support hook is stretched out, catch on and subtract columella bearing hole inner face, press the other pressurized cylinder decline button of right handles, finish bearing press mounting and go into the position, pressing the other pressurized cylinder rising button of right handles then resets pressurized cylinder, be rotated counterclockwise counter-force linkage handle then and unclamp counter-force bar claw, the other cylinder rising button of push case left handle rises body, and anchor clamps flow into subsequent processing.

The present invention compared with prior art has the following advantages:

1, adopt pneumatic press-fit approach be aided with pneumatic suspension setting make whole press-loading device light, can be by default guide rail freely-movable, cover a plurality of Assembling bogies, taking less under the situation in space, assembly line limit as far as possible, realizing that bearing press mounting can move and synchronization action with assembly line;

2, the alternative pressing bearing that manually manually knocks improves the assembly line assembly quality, and annual the minimizing because of the people is hundreds of on the bearing that damages of the factor of knocking reduces bad hundreds of of engineering, effectively saves integrated cost;

3, guarantee under the prerequisite of conditional request harshness at the scene, realize that bearing press mounting tradition assembly line improves, and guarantees to press-fit smoothness, the unanimity of process;

4, reduce operating personnel's labour intensity 50%, save 0.2 minute/part in man-hour, effectively improve operating efficiency.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structure diagram of counter-force linkage 4 among Fig. 1;

Fig. 3 is the A-A profile of Fig. 2;

Fig. 4 is the B-B profile of Fig. 2;

Fig. 5 is the C-C profile of Fig. 2;

Fig. 6 is the structure diagram of suspended portion 2 among Fig. 1.

The specific embodiment

As Fig. 1, shown in Figure 6, the dotted portion of Fig. 1 is assembly line anchor clamps dolly and workpiece, and the dotted portion of Fig. 6 is a pneumatic press machine 3.As shown in Figure 1, pneumatic press machine 3 is installed on the guide rail 1 by suspended portion 2, and counter-force linkage 4 is connected with pneumatic press machine 2.

As Fig. 1, shown in Figure 6, be the suspension type removable frame between pneumatic press machine 3 and the suspended portion 2, the operation casing comprises support body, gas-liquid pressure-boosting cylinder 24, liquid gas pressure control, electric control system, and cabinet panel has cylinder rise and fall indicator lamp, cylinder rise and fall button, left and right sides indicator lamp, pressurized cylinder rise and fall indicator lamp, pressurized cylinder rise and fall button, left and right handle; Because need pressing bearing outer ring and vehicle bridge to subtract total interference fit that is, pressure needs 20～30KN, the technology of the present invention adopts the gas-liquid pressure-boosting cylinder, and pressure can reach 70KN, can cover all bearing press mounting pressure demand fully, but the air pressure step-less adjustment.

As shown in Figure 6, suspended portion 2 adopts pneumatic suspension secondary spring balancer 22, the flexible body that makes by cylinder 23 can move up and down as required, vertical rule coaster 21 can move around with assembly line in D type guide rail 20 upper edge guide rails 1 direction, realize moving and press-fit, press-fiting height can be by Spring balancer 22 manual light adjusting, and guide rail 1 adopts 10# I-steel guide rail.Be provided with because of hanging, counter-force reached 30KN when bearing was exerted pressure, and the present invention is applied to counter-force on the anti-end face in main cone hole that subtracts the shell inner chamber, and the hook of support hook can be along involute annulus gathering sill quick-expansion, and hook stretches out automatically counter-force is provided when press-fiting action.

Operating process is: at first the other cylinder rising button of push case left handle rises body, promote assembly line anchor clamps dolly and subtract shell to work station, the bearing outer ring that need are press-fited is adsorbed on the magnetic pressure head of counter-force linkage 4 lower ends, press the other cylinder decline button of left handle, rely on counter-force linkage 4 at the coarse positioning that subtracts on the shell, the handle of counter-force linkage 4 of turning clockwise after putting in place descends, counter-force linkage 4 hook-type claws are stretched out, catch on and subtract columella bearing hole inner face, press the other pressurized cylinder decline button of right handles, finish bearing press mounting and go into the position, pressing the other pressurized cylinder rising button of right handles then resets pressurized cylinder, be rotated counterclockwise counter-force linkage 4 handles again and unclamp counter-force bar claw, the other cylinder rising button of push case left handle rises body, and anchor clamps flow into subsequent processing.In the operation process, whole machine body can rely on hanging transverse to move with the line stepping, finishes to move to press-fit.

As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, dotted portion is coupling part, assembly line anchor clamps dolly and the workpiece of pneumatic press machine 3.Support hook 7 (on the circumference uniform 3) is connected with pressure head body 6 by bearing pin 8, and torque spring 17 has been installed on the bearing pin 8, makes support hook 7 as the time spent automatic retraction function be arranged at torque spring 17 returns, and blanking cover 19 is installed behind the torque spring 17; Pressure head body 6 is connected with pneumatic press machine 3 by connecting plate 5 usefulness screws, between connecting plate 5 bottoms and the pressure head body 6 latch segment 15 is housed, latch segment 15 is contained in the annular groove of pressure head body 6, by thread forms handle 18 is installed on the latch segment 15, latch segment 15 belows have makes the elastic steel ball 16 that rotates freely in the annular groove of latch segment 15 on pressure head body 6, latch segment 15 is provided with uniform involute annulus gathering sill, insert in the gathering sill upper end of support hook 7, when the operator turns clockwise handle 18, latch segment 15 clockwise rotates, gathering sill drives support hook 7 upper ends and reduces the direction motion to diameter, locking this moment hook 7 is that rotate at the center with bearing pin 8, support hook 7 lower ends are to the motion of increasing diameter general orientation, and claw stretches out; Otherwise, the claw withdrawal; Axle 9 is connected with the cylinder piston of pneumatic press machine 3, can in pressure head body 6, slide up and down, briquetting 14 studs with magnet, because of bearing must be contained in the bearing briquetting 14 times fast in advance, below briquetting 14, increase permanent magnet, but the bearing Fast Installation is in the lower surface of briquetting 14, briquetting 14 is by elastic expansion-sleeve 10, sleeve 11, end cap 12, adjusting pad 13 usefulness screws are connected with axle 9, when the bearing material loading, the bearing outer ring endoporus is inserted in the sleeve 11, magnet on the briquetting 14 puts bearing outer ring absorption in place, and bearing briquetting 14 is pressed production line by the design of product category coupling, and briquetting is changed quick.

Claims

1. a mobile bearing press comprises pneumatic press machine (3), it is characterized in that: pneumatic press machine (3) is installed on the guide rail (1) by suspended portion (2), and counter-force linkage (4) is connected with pneumatic press machine (3).

2. mobile bearing press according to claim 1, it is characterized in that: the movable support hook (7) of described counter-force linkage (4) is connected with pressure head body (6) by bearing pin (8), the bottom of support hook (7) is a hook-shape structure, the torque spring (17) that support hook (7) can be bounced back automatically has been installed, the outer blanking cover (19) of installing of torque spring (17) on the bearing pin (8); Pressure head body (6) is connected with pneumatic press machine (3) with connector by connecting plate (5), between connecting plate (5) bottom and the pressure head body (6) latch segment (15) is housed, handle (18) is installed on the latch segment (15), latch segment (15) below has makes the elastic steel ball (16) that rotates freely in the circular trough of latch segment (15) on pressure head body (6), latch segment (15) is provided with uniform involute annulus gathering sill, and insert in the gathering sill upper end of support hook (7); Axle (9) is connected with the cylinder piston of pneumatic press machine (3), can slide up and down in pressure head body (6), and briquetting (14) is connected with axle (9) by connector.

3. mobile bearing press according to claim 2 is characterized in that: support hook (7) on the circumference uniform 3 and more than, involute on the latch segment (15) circle gathering sill be 3 and more than.

4. mobile bearing press according to claim 2 is characterized in that: rotary handle (18) and latch segment (15) are for being threaded.

5. mobile bearing press according to claim 2 is characterized in that: briquetting (14) studs with magnet, is connected with axle (9) with connector by elastic expansion-sleeve (10), sleeve (11), end cap (12), adjusting pad (13).

6. mobile bearing press according to claim 1 is characterized in that: be between pneumatic press machine (3) and the suspended portion (2) to adopt the gas-liquid pressure-boosting cylinder by the suspension type removable frame.

7. mobile bearing press according to claim 1 is characterized in that: the pneumatic suspension secondary balancer that press-fits, also can move up and down can be gone up and move, be realized moving to suspended portion (2) employing at guide rail (1).