CN214442779U - Leaf spring subassembly riveting device - Google Patents

Abstract

The plate spring component riveting device comprises a support assembly, a pressing assembly and a movable unit; the supporting assembly comprises a fixed seat, two supporting blocks, a supporting seat and an elastic resetting piece, wherein the two supporting blocks are arranged oppositely, supporting pieces are respectively arranged at the opposite ends of the two supporting blocks, the supporting seat is positioned between the two supporting pieces and can move along the height direction of the fixed seat, a supporting surface is formed on the upper surface of the supporting seat, and the elastic resetting piece is used for providing elastic stress for pushing the supporting seat upwards; the pressing assembly comprises a pressing rod and a pressing sleeve which extend along the height direction, a pressing head is fixed at the lower end part of the pressing rod, a pressing surface is formed at the lower end surface of the pressing sleeve, and the pressing surface and the supporting piece are matched to form a clamping mechanism for clamping the steel plate spring and the clamp. The utility model discloses through a roof pressure process on a station, accomplish the riveting simultaneously and buckle the action, improved leaf spring assembly's assembly efficiency.

Description

Leaf spring subassembly riveting device

Technical Field

The utility model relates to a processingequipment of vehicle spare part, concretely relates to leaf spring subassembly riveting device.

Background

Leaf spring assembly comprises the leaf spring of a plurality of range upon range of settings usually, and when the equipment, need utilize the clamp taut with a plurality of leaf spring, and is concrete, and the clamp is the U-shaped, passes through rivet connection on a leaf spring with the middle part of clamp, and the clamp both sides are bent and are located leaf spring assembly's side, then utilize the bolt to connect and take-up the both ends of clamp. The current assembly mode is that a strip-shaped hoop middle part is riveted in a rivet hole formed in a steel plate spring through a rivet, then the part of the hoop extending out of two sides of the steel plate spring is bent, and the riveting step and the bending step are respectively completed at two stations, so that the assembly efficiency of the plate spring assembly is lower.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model aims at providing a leaf spring subassembly riveting device, it can improve the assembly efficiency of leaf spring subassembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the plate spring component riveting device comprises a support assembly, a pressing assembly and a driving unit, wherein the pressing assembly is positioned above the support assembly, and the driving unit is used for driving the pressing assembly to move up and down;

the support assembly comprises a fixed seat, two support blocks, a support seat and an elastic reset piece, wherein the two support blocks are arranged on the fixed seat and are arranged oppositely, one ends of the two support blocks, which are opposite to each other, are respectively provided with a support piece, the two support pieces are respectively supported below two ends of the clamp, the support seat is positioned between the two support pieces and can move along the height direction of the fixed seat, the upper surface of the support seat forms a support surface for supporting a rivet, a steel plate spring and the middle part of the clamp, and the elastic reset piece is used for providing elastic stress for pushing the support seat upwards;

the pressing assembly comprises a pressing rod extending along the height direction and a pressing sleeve sleeved outside the pressing rod, a pressing head which is located right above the supporting seat and used for jacking the rivet is fixed at the lower end part of the pressing rod, a pressing surface is formed at the lower end surface of the pressing sleeve, and the pressing surface and the supporting piece are matched to form a clamping mechanism used for clamping the steel plate spring and the clamp.

The pressing sleeve is movably sleeved on the pressing rod, and an elastic buffer piece is arranged between the pressing rod and the pressing sleeve and used for providing elastic stress for pushing the pressing sleeve downwards.

An upper supporting plate is fixed at the top end of the pressing rod, a lower supporting plate located below the upper supporting plate is fixed at the top end of the pressing sleeve, the elastic buffer piece is installed between the upper supporting plate and the lower supporting plate, and the output end of the driving unit is connected to the upper supporting plate.

The elastic buffer piece comprises a plurality of air springs which are uniformly distributed on the outer periphery of the compression bar, and the upper end part and the lower end part of each air spring are connected to the upper supporting plate and the lower supporting plate respectively.

The pressure head is detachably fixed at the lower end part of the pressure rod.

The top of pressure head wears to connect in the mounting groove that the terminal surface was seted up under the depression bar, is provided with one on the depression bar along its radial extension in order to compress tightly the pressure head and fix the machine rice screw on the depression bar, presses to overlap to be provided with on being used for dodging the groove of dodging of machine rice screw.

The two supporting blocks are in sliding fit with the fixed seat, and both the two supporting blocks can move between a first position far away from the supporting seat and a second position close to the supporting seat along the length direction of the fixed seat; the supporting assembly further comprises two pushing components which are respectively in one-to-one correspondence with the two supporting blocks, and the pushing components are used for pushing the supporting blocks corresponding to the supporting components to move from the first position to the second position when the supporting seat moves downwards.

The supporting piece is a roller pivoted on the inner side of the supporting block.

The pushing assembly comprises a movable rod located on the outer side of the supporting block, a movable part located below the supporting block and capable of sliding along the length direction of the fixing seat, and a movable seat installed on the supporting seat, wherein the middle of the movable rod is hinged to the fixing seat, the top of the movable rod abuts against the outer side of the supporting block, the bottom of the movable rod abuts against the outer side of the movable part, the inner side of the movable part abuts against the movable seat, and the movable seat is used for pushing the movable part towards the outer side when the supporting seat moves downwards.

The top of the movable rod is in threaded connection with a first adjusting bolt which abuts against the outer side of the supporting block, and the bottom of the movable rod is in threaded connection with a second adjusting bolt which abuts against the outer side of the movable piece.

The supporting seat comprises a rod part extending along the height direction and a supporting platform radially and outwards extending from the top end of the rod part, the movable seat is sleeved on the rod part, two sides of the movable seat are respectively provided with an inclined surface, the inclined surfaces gradually incline towards the rod part from top to bottom, and the two inclined surfaces are respectively used for pushing the inner sides of the two moving parts.

The fixed seat is provided with a mounting hole, the movable seat is arranged in the mounting hole, and the side wall of the mounting hole is provided with a limiting step for limiting the maximum displacement of the movable seat in the downward movement.

The lower tip of pole portion is fixed with a connecting seat, and the below of fixing base is connected with a bottom plate, and elasticity piece that resets is the spring of installing between bottom plate and connecting seat.

The beneficial effects of the utility model reside in that:

the utility model discloses a lower tip at the depression bar sets up the pressure head, sets up the pressure cover in the depression bar outside simultaneously, utilizes pressure head roof pressure rivet, when making clamp and leaf spring riveting together, utilizes the pressure cover to make the clamp move down, through support piece with the clamp both ends jack-up that makes progress, makes the clamp bend in leaf spring's both sides, through a roof pressure process promptly on a station, accomplishes the riveting simultaneously and buckles the action, has improved leaf spring assembly's assembly efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic view of an operating state of the present invention;

fig. 5 is a schematic view of another working state of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1, 2, 3, for the utility model discloses a leaf spring subassembly riveting device, when being used for riveting clamp 91 and leaf spring 90 together, make the both ends of clamp 91 upwards bend by leaf spring 90's both sides respectively and be 90, this leaf spring subassembly riveting device is including supporting assembly 200, be located the assembly 100 and the drive unit that compress tightly of supporting assembly 200 top, when the riveting, with rivet 92, clamp 91, leaf spring 90 arranges in and supports assembly 200 and compress tightly between the assembly 100, drive through the drive unit and compress tightly assembly 100 downstream, in order to accomplish the action of bending of riveting and clamp 91, after the completion, the drive unit drives and compresses tightly assembly 100 and upward movement, prepare next riveting and the action of bending. Specifically, the support assembly 200 includes a fixed seat 210, two support blocks 220, a support seat 230, and a spring 260, the fixed seat 210 is an installation base portion of the entire support assembly 200, the two support blocks 220 are both installed on the fixed seat 210 and are arranged opposite to each other, support members are respectively arranged at opposite ends of the two support blocks 220, the support seat 230 is located between the two support members and can move along the height direction (i.e., the Z direction in the figure), and a support surface for supporting the middle portions of the rivet 92, the leaf spring 90, and the clamp 91 is formed on the upper surface of the support seat 230; the spring 260 is used for pushing the support seat 230 upwards at the bottom of the support seat 230, that is, the spring 260 can always provide an elastic stress for pushing the support seat 230 upwards; the pressing assembly 100 comprises a pressing rod 110 and a pressing sleeve 120, wherein the pressing rod 110 extends along the height direction, the pressing sleeve 120 is sleeved outside the pressing rod 110, a pressing head 111 is fixed at the lower end part of the pressing rod 110, the pressing head 111 is positioned right above the supporting seat 203, and a pressing surface 122 is formed at the lower end surface of the pressing sleeve 120; during riveting, the rivet cap of the rivet 92 faces downward and is placed on the support base 230, so that the rivet 92 sequentially passes through the rivet hole of the clip 91 and the rivet hole of the leaf spring 92, the upper end portion of the rivet 92 has a portion protruding from the upper surface of the leaf spring 90, which deforms during riveting to match the rivet cap of the rivet 92 to connect the leaf spring 90 and the clip 91 together, after the clip 91 is placed on the support base 230, the two ends of the clip 91 are respectively lapped on the support members of the two support blocks 220, that is, the two support members are respectively supported below the two end portions of the clip 91, when the driving unit drives the pressing assembly 100 to move downward, the pressing head 111 presses against the rivet 92 to rivet 91 and rivet the leaf spring 90 together, and simultaneously the pressing sleeve 120 presses the leaf spring 90 and the clip 91 downward, and the pressing surface 122 at the lower end portion of the pressing sleeve 120 is matched with the support surface on the support base 230, constitute a fixture, in order to press from both sides clamp 91 and leaf spring 90, supporting seat 230 moves down along with pressing cover 120, because the both ends of clamp 91 are supported by support piece, thereby when clamp 91 is pressed from both sides by fixture and moves down, the both ends part of clamp 91 is bent upwards, as long as set up the interval between two support pieces to be slightly greater than leaf spring 90's width, can form a die structure between two support pieces, so, when clamp 91 moves down along with supporting seat 230, upwards bend the both ends of clamp 91 through two support pieces, and bend the angle and move down along with clamp 91 and grow gradually, until the angle of bending reaches 90.

The utility model discloses a lower tip at the depression bar sets up the pressure head, sets up the pressure cover in the depression bar outside simultaneously, utilizes pressure head roof pressure rivet, when making clamp and leaf spring riveting together, utilizes the pressure cover to make the clamp move down, through support piece with the clamp both ends jack-up that makes progress, makes the clamp bend in leaf spring's both sides, through a roof pressure process promptly on a station, accomplishes the riveting simultaneously and buckles the action, has improved leaf spring assembly's assembly efficiency.

In a preferred embodiment, the present invention slidably mounts two supporting blocks 220 on the fixing base 210, so that the two supporting blocks 220 can slide along the length direction (i.e. the X direction in the figure) of the fixing base 210, i.e. in the length direction of the fixing base 210, the supporting block 220 can move between a first position far away from the supporting seat 230 and a second position close to the supporting seat 230, the supporting member on the supporting block 220 moves along with the supporting block 220 to be close to or far away from the supporting seat 230, specifically, two baffles 2101 are convexly disposed on the fixing base 210, a sliding slot is formed between the two baffles 2101, the supporting block 220 is placed in the sliding slot, and a cover plate is fixed on the top of each baffle 2101, thereby preventing the supporting block 220 from being separated from the top of the baffle 2101, the extending direction of the baffles 2101 is identical to the length direction of the fixing base 210, and thus, the extending direction of the sliding slot is identical to the length direction of the fixing base 210, the supporting block 220 can slide along the sliding groove; meanwhile, the support assembly further comprises two pushing components which are respectively arranged corresponding to the two support blocks 220, when the support base 230 is pushed by the pressure head 111 to move downwards, the pushing components are pushed by the support base 230 and can drive the support block 220 to generate a small displacement towards the support base 230, namely, the support piece on the support block 220 moves towards the support base 230 from the first position, so that in the process of bending the hoop 91, the hoop 91 moves downwards along with the support base 230, the end part of the hoop 91 is supported by the support piece and is bent, in the process of moving the hoop 91 downwards, the support piece pushes the bent part of the hoop 91 towards the support base 230, the bending speed of the hoop 91 is accelerated, and meanwhile, the angle of the bent part of the hoop 91 is ensured to be 90 degrees; specifically, the pushing assembly includes a movable rod 240, a movable member 280, and a movable seat 270, wherein the movable rod 240 is installed at an end of the fixed seat 210, i.e. located outside the supporting block 220, the movable member 280 is located below the supporting block 220, and the movable member 280 can slide along a length direction of the fixed seat 210, the movable seat 270 is installed on the supporting seat 230, a middle portion of the movable rod 240 is hinged to the fixed seat 210 through a pivot 2102 to form a lever structure, a top portion of the movable rod 240 abuts against an outside of the supporting block 220, a bottom portion of the movable rod abuts against an outside of the movable member 280, when the supporting seat 230 receives a downward pressing force from the pressing sleeve 120, the supporting seat 230 moves downward to drive the movable seat 270 to move downward, and in a process of downward movement of the movable seat 270, the movable rod 240 can push the movable member 280 outward, so that a pushing force is transmitted to the movable block 220 through the movable rod 240 and is reversed, push away the movable block 220 to the inboard side, make the movable block 220 drive the inboard support piece of gas then and remove towards the direction that is close to supporting seat 230, so, support piece through the sideslip, when the clamp 91 of bending, extrude the department of bending of clamp to ensure that the angle after the clamp 91 is bent reaches 90, overcome the defect that the clamp angle of bending that causes because of sheet metal kick-backs after bending is greater than 90. In order to improve the bending precision of clamp 91, the utility model discloses top spiro union at movable rod 240 has a first adjusting bolt 241, bottom spiro union at movable rod 240 has a second adjusting bolt 242, first adjusting bolt 241 supports the outside at movable block 220, second adjusting bolt 242 supports the outside at moving part 280, the angle after clamp 91 bends is greater than 90 when, rotatory first adjusting bolt 241, second adjusting bolt 242, make it remove the certain distance towards the inboard, vice versa, when the angle of bending is less than 90, rotatory first adjusting bolt 241, second adjusting bolt 242, make its two outside remove the certain distance.

In addition, in order to achieve a better bending effect, the utility model can make the supporting seat 230 start to drive the movable seat 270 to move downwards after the supporting seat 230 moves downwards for a section of displacement, so that after the supporting piece pre-bends the hoop 91 for a certain angle, the part bent by the hoop 91 is extruded by utilizing the transverse movement of the supporting piece; specifically, the supporting seat 230 of the present invention includes a rod portion 233, and a supporting seat 232 located at the top of the rod portion 232, wherein the supporting seat 232 extends radially outward from the top of the rod portion 233, that is, the outer diameter of the supporting seat 232 is larger than the outer diameter of the rod portion 233, the movable seat 270 is sleeved outside the rod portion 233, two inclined surfaces 271 are respectively disposed at two sides of the movable seat 233, the inclined surfaces 271 incline toward the rod portion 233 from top to bottom, the two inclined surfaces 271 are respectively engaged with the inner ends of the two movable members 280, when the supporting seat 230 starts to move downward, the movable seat 270 keeps unchanged in position, at this time, the pushing assembly is not triggered, when the supporting seat 230 moves downward to the supporting seat 232 to contact with the upper end surface of the movable seat 270, the movable seat 270 moves downward under the driving of the supporting seat 230, the inclined surface 271 pushes the movable member 270, the movable member 270 is reversed by the inclined surface 271, and the movable member 270 is converted into a displacement in which the movable member 280 moves outward along the length direction of the fixed seat 210, thereby swinging the movable lever 240 to move the movable block 220 toward the inside; in addition, the top of the support base 230 is provided with a support base 232 having a larger outer diameter, so that a support surface formed on the upper surface of the support base 232 can better support and position the rivet, the clip, and the leaf spring, and a positioning groove 231 having a shape similar to a rivet cap of the rivet may be provided on the upper surface of the support base 232. Of course, in order to avoid the locking of the inclined surface 271 when pushing the movable member 280, the inner end of the movable member 280 may be a inclined surface 281, and the inclined surface 281 is also inclined from top to bottom toward the rod 233. The utility model discloses in, also can set up the outside of sliding seat 270 into the vertebra form that the diameter gradually diminishes from top to bottom, like this, even when the sliding seat 270 takes place the rotation, also can push away the moving part 280 through the conical surface of its surface. In addition, a mounting hole 2103 is formed in the fixed seat 210, the movable seat 270 is disposed in the mounting hole, and a limiting step 2104 is disposed on a side wall of the mounting hole 2103, and the limiting step 2104 is used for limiting the movable seat 270 when the movable seat 270 moves down along with the support seat 230, so as to limit the maximum displacement of the movable seat 270 moving down, and prevent the movable seat from moving below the movable member 280 and being jammed.

In addition, in order to facilitate the installation of the spring 260, the spring 260 can provide a better resilient supporting force for the supporting seat 230, the utility model discloses a connecting seat 290 is fixed to the lower end of the rod portion 233, and simultaneously, a bottom plate 250 is fixed to the lower part of the fixing seat 210 through a plurality of screws 251, and the spring 260 is arranged between the bottom plate 250 and the connecting seat 290. In other embodiments, an elastic restoring element such as an elastic rubber block may be used to replace the spring 260, the elastic restoring element may be disposed between the bottom plate 250 and the connecting seat 290, or another structure may be used to mount the elastic restoring element, in short, as long as the elastic restoring element can apply an upward elastic stress to the supporting seat 230, so as to ensure that the supporting seat 230 can return to the initial position after the riveting and bending actions are completed.

In this preferred embodiment, the utility model discloses a support piece is gyro wheel 221, and the medial extremity portion of supporting shoe 220 is arranged in to gyro wheel 221 to through pivot pin joint on supporting shoe 220, when preparing the riveting, on gyro wheel 221 on two supporting shoes 220 was arranged respectively in at the both ends of clamp, at the in-process of bending, through gyro wheel 221 extrusion clamp, its and clamp surface cooperate with rolling friction's mode, reduce the frictional resistance when the clamp moves down, simultaneously, avoid causing the damage to the clamp surface.

In the riveting process, the rivet 92 is pressed downwards by the pressing head 111 to deform the rivet 92 so as to rivet the clamp 91 and the leaf spring 90 together, the pressing surface 122 at the lower end of the pressing sleeve 120 is matched with the supporting surface at the top of the supporting seat 230 to clamp the leaf spring 90 and the clamp 91, the pressing rod 110 and the pressing sleeve 120 can be fixedly matched on the premise of accurately controlling the deformation of the rivet 92, but in the actual processing process, because the deformation of the rivet 92 is difficult to determine, the movable sleeve of the pressing sleeve 120 is sleeved outside the pressing rod 110, and an elastic buffer member is arranged between the pressing rod 110 and the pressing sleeve 120 and used for providing an elastic stress which can always push the pressing sleeve 120 downwards, namely, the pressing rod 110 is rigidly matched with the power output end of the driving unit, the pressing sleeve 120 is flexibly matched with the power output end of the driving unit, the pressing rod 110 drives the pressing head 111 to press the rivet 92 downwards, when the pressing head 111 contacts the rivet 92, the pressing surface 122 is pressed on the leaf spring 90, or only a small gap exists between the pressing surface 122 and the leaf spring 90, that is, before the rivet 92 fails to be completely deformed and takes the shape of the riveting clamp 91 and the leaf spring 90, the pressing surface 122 contacts the upper surface of the leaf spring 90, so as to cooperate with the supporting surface on the supporting seat 230 to clamp the leaf spring 90 and the clamp 91, in the process that the pressing head 111 continuously pushes the rivet 92 downwards, because the elastic buffer plays a role of buffering the pressing sleeve 120, the pressing sleeve 120 is prevented from moving downwards to crush the leaf spring 90 and the clamp 91, and meanwhile, the pressing head 111 is ensured to continuously press the rivet 92, and the rivet 92 is ensured to be fully deformed. An upper supporting plate 113 is fixedly installed at the top of the pressing rod 110, a lower supporting plate 121 is fixed at the top of the press sleeve 120, the lower supporting plate 121 is located below the upper supporting plate 113, the pressing rod 110 penetrates into the press sleeve 120 through a hole preset in the lower supporting plate 121, and the elastic buffer is installed between the upper supporting plate 113 and the lower supporting plate 121, so that an installation foundation is provided for the elastic buffer by using the upper supporting plate 113 and the lower supporting plate 121, so that the installation of the elastic buffer is facilitated, and the output end of the driving unit is connected to the upper supporting plate 113. It should be noted that, the utility model discloses a preferred adoption pneumatic cylinder of drive unit, the telescopic link of pneumatic cylinder is fixed in upper support plate 113, and of course, drive unit also can be to adopt the cylinder, or regard as other drive unit of the energy with the electricity, can promote to compress tightly assembly 100 and move from top to bottom anyhow. The elastic buffer member may include a plurality of air springs 130, the plurality of air springs 130 are uniformly distributed on the outer periphery of the pressing rod 110, the upper end portion of each air spring 130 is connected to the upper supporting plate 113, the lower end portion of each air spring 130 is connected to the lower supporting plate 121, the elastic buffer member is composed of the plurality of air springs 130, large elastic buffer force can be provided, the pressing surface 122 and the supporting surface are made to be sufficient to clamp the leaf spring 90 and the clamp 91, and the leaf spring 90 and the clamp 91 are prevented from deviating in riveting and bending processes. The elastic buffer may be other elastic members, such as a rubber block having elasticity, a spring, and the like.

The utility model discloses a lower tip at depression bar 110 is fixed with the detachable mode to pressure head 111, thus, when pressure head 111 warp or damage, can be convenient dismantle back renewal pressure head 111 with pressure head 111, it is specific, the top cross-under of pressure head 111 in the mounting groove of seting up under depression bar 110 on the terminal surface, be provided with one on depression bar 110 along its radial extension machine rice screw 112, this machine rice screw 112 outside-in penetrates in the mounting groove, and compress tightly on pressure head 111, machine rice screw 112 screws, can be with tight pressure head 111 in top, in order to fix pressure head 111 and depression bar 110, when changing pressure head 111, the machine rice screw 112 of unscrewing can, furthermore, in order to facilitate the operation, avoid machine rice screw 112 to cause the influence to the relative motion between pressure cover 120 and the depression bar 110 simultaneously, be provided with one on pressure cover 120 and be used for dodging machine rice screw 112 dodge groove 1201.

Referring to fig. 4 and 5, in riveting, the rivet cap of the rivet 92 is placed downwards in the groove 231, the clamp 91 and the leaf spring 90 are placed on the support 230 in sequence, so that the rivet 92 passes through rivet holes on the clamp 91 and the leaf spring 90, the driving unit is started to drive the pressing assembly 100 to move downwards, the press head 111 presses down the rivet 92, the press sleeve 120 and the support 230 clamp the leaf spring 90 and the clamp, and the press head 111 moves downwards to push the support 230 to move downwards, two ends of the clamp 91 are respectively jacked upwards by the two rollers 221, in the process of continuous downward movement of the support 230, the jacking component is triggered to make the rollers 221 move inwards, the bent part of the clamp 91 is pushed inwards, finally, the bending angle on the clamp 91 is ensured to reach 90 degrees, after one-time riveting and bending are completed, the driving unit drives the pressing assembly 100 to move upwards to the initial position, at the same time, the spring 260 rebounds to push the support seat 230 to the initial position.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (13)

1. The plate spring component riveting device is characterized by comprising a support assembly, a pressing assembly positioned above the support assembly and a driving unit for driving the pressing assembly to move up and down;

the support assembly comprises a fixed seat, two support blocks, a support seat and an elastic reset piece, wherein the two support blocks are arranged on the fixed seat and are arranged oppositely, one ends of the two support blocks, which are opposite to each other, are respectively provided with a support piece, the two support pieces are respectively supported below two ends of the clamp, the support seat is positioned between the two support pieces and can move along the height direction of the fixed seat, the upper surface of the support seat forms a support surface for supporting a rivet, a steel plate spring and the middle part of the clamp, and the elastic reset piece is used for providing elastic stress for pushing the support seat upwards;

the pressing assembly comprises a pressing rod extending along the height direction and a pressing sleeve sleeved outside the pressing rod, a pressing head which is located right above the supporting seat and used for jacking the rivet is fixed at the lower end part of the pressing rod, a pressing surface is formed at the lower end surface of the pressing sleeve, and the pressing surface and the supporting piece are matched to form a clamping mechanism used for clamping the steel plate spring and the clamp.

2. The leaf spring assembly riveting apparatus according to claim 1 wherein the collet movably fits over the strut, and an elastomeric cushion is disposed between the strut and the collet for providing an elastic stress urging the collet downward.

3. The leaf spring assembly riveting apparatus of claim 2, wherein an upper support plate is fixed to the top end portion of the pressing rod, a lower support plate is fixed to the top end portion of the pressing sleeve below the upper support plate, the elastic buffer member is installed between the upper support plate and the lower support plate, and the output end of the driving unit is connected to the upper support plate.

4. The leaf spring assembly riveting apparatus of claim 3, wherein the resilient cushion comprises a plurality of air springs evenly distributed around the outer periphery of the strut, the air springs having upper ends attached to the upper support plate and lower ends attached to the lower support plate.

5. The leaf spring assembly rivet apparatus of claim 1, wherein the ram is removably secured to the lower end of the strut.

6. The leaf spring assembly riveting apparatus of claim 5, wherein the top of the pressure head passes through a mounting groove formed on the lower end surface of the pressure rod, the pressure rod is provided with a machine meter screw extending along the radial direction of the pressure rod to press and fix the pressure head on the pressure rod, and the pressure sleeve is provided with an avoiding groove for avoiding the machine meter screw.

7. The leaf spring assembly riveting apparatus of claim 1 wherein the support blocks are slidably engaged with the holder and are each movable along the length of the holder between a first position distal from the support base and a second position proximal to the support base; the supporting assembly further comprises two pushing components which are respectively in one-to-one correspondence with the two supporting blocks, and the pushing components are used for pushing the supporting blocks corresponding to the supporting components to move from the first position to the second position when the supporting seat moves downwards.

8. The leaf spring assembly rivet apparatus of claim 7, wherein the support member is a roller pivoted inside the support block.

9. The leaf spring assembly riveting apparatus of claim 7, wherein the urging assembly comprises a movable rod located outside the support block, a movable member located below the support block and slidable in a longitudinal direction of the fixed seat, and a movable seat mounted on the support seat, wherein a middle portion of the movable rod is hinged to the fixed seat, a top portion of the movable rod abuts against an outside of the support block, a bottom portion of the movable rod abuts against an outside of the movable member, an inside of the movable member abuts against the movable seat, and the movable seat is configured to urge the movable member toward the outside when the support seat moves downward.

10. The leaf spring assembly riveting apparatus of claim 9, wherein the top of the movable rod is threadedly connected with a first adjusting bolt abutting against the outside of the support block, and the bottom of the movable rod is threadedly connected with a second adjusting bolt abutting against the outside of the movable member.

11. The leaf spring assembly riveting apparatus of claim 10, wherein the support base comprises a rod portion extending in a height direction, and a support base extending radially outward from a top end of the rod portion, the movable base is fitted over the rod portion, two sides of the movable base are respectively provided with an inclined surface which is inclined gradually toward the rod portion from top to bottom, and the two inclined surfaces are respectively used for pushing inner sides of the two movable members.

12. The leaf spring assembly riveting apparatus of claim 11, wherein the fixed seat is provided with a mounting hole, the movable seat is disposed in the mounting hole, and a side wall of the mounting hole is provided with a limiting step for limiting the maximum displacement of the movable seat in the downward direction.

13. The leaf spring assembly rivet apparatus of claim 11, wherein a connecting seat is fixed to a lower end portion of the rod portion, a bottom plate is connected to a lower portion of the fixing seat, and the elastic restoring member is a spring installed between the bottom plate and the connecting seat.

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