CN218857729U

CN218857729U - Plate spring jig and plate spring winding forming equipment

Info

Publication number: CN218857729U
Application number: CN202320023831.5U
Authority: CN
Inventors: 李江山; 王道群; 何福强
Original assignee: Guizhou Hansikai Intelligent Technology Co ltd
Current assignee: Guizhou Hansikai Intelligent Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-14
Anticipated expiration: 2033-01-04

Abstract

The utility model belongs to the technical field of plate spring forming, in particular to a plate spring jig and plate spring winding forming equipment, which comprises a base and a jig body arranged on the base, wherein the jig body is provided with a forming groove; still include the bush, circumference is provided with the draw-in groove that is used for twining combined material on the lateral surface of bush, the bush is provided with two, two the bush all can be dismantled and connect on the base to be located the both ends in shaping groove respectively outside, after the winding shaping, two bushes close the common leaf spring that forms as an organic whole with combined material, need not in addition in leaf spring tip trompil or beat the screw and install the bush, improve leaf spring shaping efficiency, shorten leaf spring manufacturing time and cost, can not destroy the fibrous continuity in leaf spring integrality and the combined material, avoid stress concentration, the life and the reliability of extension leaf spring. After the composite material is cured, the clamping groove and the composite material are mutually limited, and the connection firmness of the bushing is guaranteed, so that the use reliability of the plate spring is further improved.

Description

Plate spring jig and plate spring winding forming equipment

Technical Field

The utility model belongs to the technical field of the leaf spring shaping, specifically relate to a leaf spring tool and leaf spring winding former.

Background

The leaf spring is a plate spring commonly used in suspension for wheeled vehicles, and the conventional leaf spring generally uses a relatively strong spring steel plate, such as 65Mn, which is generally shaped as an elongated arc with a rectangular cross section. Although the leaf spring of steel sheet material intensity is higher, the dead weight is great, can increase automobile body weight during the application, and in process of production, needs the steel sheet to possess certain toughness when keeping high strength, leads to production technology complicated, and then leads to manufacturing cost increase.

In order to reduce the dead weight of the plate spring on the basis of meeting the strength requirement, composite materials are selected to manufacture the plate spring in the prior art, the method for forming the plate spring by utilizing the composite materials is roughly divided into two types, and some plate springs are formed by sequentially laminating and laying cut prepregs in a cavity of a mold, and then molding and heating and curing the prepregs. Other methods are to wind and shape the composite material by winding the composite material on a mold, then cut the wound composite material and cure the cut composite material to obtain the leaf spring, such as the winding method and mold/tooling disclosed in CN202210625453.8, CN201610037228.7, in which no hole is reserved at the end of the formed leaf spring, so it is necessary to install a metal bushing in the hole formed at the end of the formed leaf spring, or fix the metal bushing at the end of the leaf spring by a screw to connect with other components of the frame through the bushing, but the process of drilling and connecting the metal bushing not only takes extra processing time, but also destroys the integrity of the leaf spring and the continuity of the fiber in the composite material, which causes stress concentration in the hole area and is easy to break in the using process, and reduces the service life and reliability of the leaf spring.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a leaf spring tool and leaf spring winding former that improve leaf spring shaping efficiency, avoid leaf spring stress concentration, improve leaf spring life and reliability.

The utility model provides a plate spring jig, which comprises a base and a jig body arranged on the base, wherein the jig body is provided with a forming groove; still include the bush, circumference is provided with the draw-in groove that is used for winding combined material on the lateral surface of bush, the bush is provided with two, two the bush all can be dismantled and connect on the base to it is outside to be located the both ends in shaping groove respectively.

Furthermore, the composite material forming device further comprises a comb-shaped plate, wherein more than two positioning grooves are formed in the comb-shaped plate, the comb-shaped plate is arranged in the forming groove in a penetrating mode, and the more than two positioning grooves are arranged in the width direction of the forming groove and used for conducting partition positioning on the composite material passing through the forming groove in the width direction of the forming groove.

Furthermore, the comb plates are arranged in two numbers, and the two comb plates are arranged at intervals along the length direction of the forming groove.

Furthermore, the bottom of the jig body is provided with a first opening, the first opening is communicated with the inner bottom surface of the forming groove and corresponds to the number of the comb-shaped plates, and the comb-shaped plates stretch into or exit from the forming groove along the first opening.

Furthermore, the bottom of the jig body is provided with a fixed block, the fixed block is in threaded connection with a screw, and the comb-shaped plate extending into the forming groove along the opening is fixed through jacking of the screw.

Furthermore, the number of the clamping grooves on a single bushing is more than two, and the more than two clamping grooves are arranged in an axial direction of the bushing.

Furthermore, a plurality of annular spacers are arranged on the outer side surface of each bushing and are arranged at intervals along the axial direction of the bushing, and the clamping grooves are formed by the intervals between every two adjacent annular spacers.

Furthermore, the inner bottom surface of the forming groove is an arc surface which is arranged in an arch mode, and the lowest point of the clamping grooves in the two bushings is lower than the lowest point of the arc surface in the depth direction of the forming groove.

Furthermore, the middle of the bottom of the jig body is also provided with a second opening.

The utility model also provides a leaf spring winding former, including manipulator and foretell leaf spring tool, the manipulator drives combined material and passes the shaping groove and twines on the draw-in groove of two bushes.

The beneficial effects of the utility model are that, overall structure is simple, through set up a bush as combined material's winding node respectively in the shaping groove both ends outside at the tool body, can conveniently carry out the tip location to winding combined material, after the winding shaping, two bushes close as an organic whole with combined material and form the leaf spring jointly, need not in addition in leaf spring tip trompil or beat the screw and install the bush, reduce extra process steps, not only can improve leaf spring shaping efficiency, shorten leaf spring manufacturing time and cost, also can not destroy the leaf spring integrality simultaneously, fibrous continuity in the guarantee combined material, avoid stress concentration, the life and the reliability of extension leaf spring. At winding in-process, the draw-in groove can carry on spacingly to combined material, avoids its landing, and the reliable of guarantee winding work goes on, and after the combined material solidification, the inside wall of draw-in groove plays spacing effect each other with the combined material of solidification on the axial direction of bush, ensures the fastness that bush and combined material are connected to further improve the use reliability of leaf spring.

Drawings

Fig. 1 is the structure diagram of the first visual angle of the plate spring jig of the present invention.

Fig. 2 is a schematic structural diagram of a second view angle of the plate spring jig of the present invention.

Fig. 3 is a schematic view of a local structure of one end of the plate spring jig of the present invention.

Figure 4 is the utility model discloses the last leaf spring of leaf spring tool twines the schematic diagram after the shaping.

Fig. 5 is a schematic view of the leaf spring obtained in fig. 4 according to the present invention.

In the figure, 1-base; 2-a jig body; 21-forming a groove; 22-opening one; 23-opening two; 3-a bushing; 31-an annular spacer; 32-card slot; 4-a comb plate; 41-a separator; 42-positioning grooves; 5, fixing blocks; 6-screw rod; 7-leaf spring.

Detailed Description

As shown in the accompanying drawings 1-5, the utility model provides a plate spring tool, this plate spring tool include base 1, tool body 2 and bush 3, and tool body 2 is fixed to be set up on base 1, be provided with shaping groove 21 on the tool body 2, shaping groove 21 is for setting up from 2 tops undercut of tool body, and the both ends correspond the bar groove that link up 2 both ends of tool body, and shaping groove 21 is used for fixing a position and the shaping winding combined material. Be provided with draw-in groove 32 on the lateral surface of bush 3, draw-in groove 32 specifically is circumference setting on the lateral surface of bush 3, and draw-in groove 32 can be arc or annular for twine combined material and be used for spacing winding combined material, avoid it landing from bush 3. The above-mentioned bush 3 is provided with two, two all detachable connection of bush 3 is on base 1, refer to fig. 1 and fig. 2 and show, when two bushes 3 are connected on base 1, be located the both ends of tool body 2 respectively outside, specifically be located the both ends outside of shaping groove 21 respectively, leave the interval that supplies combined material to pass between the tip in draw-in groove 32 and shaping groove 21. The composite material is a strip-shaped fiber material soaked with epoxy resin and a curing agent, and the strip-shaped fiber material can be carbon fiber, glass fiber or mixed fiber of two kinds of fibers.

The utility model discloses during the use, twine composite material on the draw-in groove 32 of one of them bush 3, it twines on the draw-in groove 32 of another bush 3 to drive composite material again after shaping groove 21, twine composite material on two bushes 3 with this, composite material between two bushes 3 then is located shaping groove 21, stop the winding after treating the draw-in groove 32 of shaping groove 21 and two bushes 3 and fill up, and make composite material solidification shaping, pull down two bushes 3 from base 1 behind the solidification shaping, and take out in the shaping groove 21, refer to that fig. 5 is shown, two bushes 3 and composite material are as an organic whole this moment, form leaf spring 7 jointly, and when this leaf spring 7 uses, the connecting axle can directly pass bush 3 and connect fixedly.

The outer diameter of the upper clamping groove 32 area of the bush 3 is determined according to the actual size of the plate spring 7, and the winding path of the composite material on the plate spring jig is a combination of an annular winding path and an 8-shaped winding path. The base 1 plays a role in fixing and supporting the jig body 2 and the bush 3, and when the jig is used, the base 1 is used for being fixed on a support of a station to be formed. The jig body 2 and the base 1 can be connected by screws or welded. The mode that bush 3 can dismantle the connection is screwed connection, specifically, and the bolt axial passes 3 middle parts of bush and is connected with base 1 to fix bush 3 on base 1, when taking off bush 3, it can to loosen the screw.

The utility model provides a plate spring tool, overall structure is simple, 21 both ends outsidely set up a bush 3 as combined material's winding node respectively through the shaping groove at tool body 2, can conveniently carry out the tip location to winding combined material, after the winding shaping, two bushes 3 close as an organic whole with combined material and form leaf spring 7 jointly, need not additionally in 7 tip trompils of leaf spring or beat the screw and install bush 3, reduce extra process step, not only can improve 7 shaping efficiency of leaf spring, shorten 7 manufacturing time of leaf spring and cost, also can not destroy 7 integrality of leaf spring simultaneously, fibrous continuity in the guarantee combined material, avoid stress concentration, prolong the life and the reliability of leaf spring 7. And set up draw-in groove 32 on bush 3, at winding in-process, draw-in groove 32 can carry on spacingly to combined material, avoids its landing, and the reliable of guarantee winding work goes on, and the combined material solidification back, the inside wall of draw-in groove 32 and the combined material of solidification play spacing effect each other on bush 3's axial direction, and the fastness that guarantee bush 3 and combined material are connected to further improve leaf spring 7's use reliability.

The utility model discloses still include comby plate 4, refer to fig. 1 and show, be provided with the constant head tank 42 more than two on the comby plate 4, comby plate 4 wears to establish when shaping groove 21, constant head tank 42 more than two arranges the setting along the width direction of shaping groove 21, at winding in-process, the combined material through in the shaping groove 21 inlays in the constant head tank 42 of corresponding position to carry out the subregion location to the combined material who is located shaping groove 21 on the width direction of shaping groove 21, guarantee winding in-process, combined material evenly distributed in its width direction in the shaping groove 21, thereby the distribution uniformity of combined material on the plate spring 7 after the guarantee shaping. The comb plate 4 includes a plurality of spacers 41, as shown in fig. 1, the plurality of spacers 41 are spaced along the width direction of the forming groove 21, and the positioning groove 42 is formed between two adjacent spacers 41.

In the preferred embodiment of the present invention, two comb plates 4 are provided, and two comb plates 4 are provided at intervals along the length direction of the forming groove 21. In other embodiments, the comb plate 4 may be one or more than three.

The bottom of the jig body 2 is provided with an opening 22, the inner bottom surface of the opening 22 and the forming groove 21 is communicated, the number of the comb-shaped plates 4 corresponds, when winding starts, the comb-shaped plates 4 stretch into the forming groove 21 along the opening 22, and the comb-shaped plates 4 are only used for positioning in the winding process and do not serve as an integral part of the plate spring 7, so that the comb-shaped plates 4 exit from the forming groove 21 along the opening 22 after winding is completed, and the comb-shaped plates 4 are prevented from influencing the curing forming of the composite materials in the forming groove 21.

In one embodiment of the present invention, a linear driving member is further included, and the linear driving member drives the comb-shaped plate 4 to extend into or withdraw from the forming groove 21 along the first opening 22. The utility model discloses an in the preferred embodiment, 2 fixed blocks 5 that are provided with in bottom of tool body are provided with screw rod 6 on the fixed block 5, and screw rod 6 wears to establish on fixed block 5 and with 5 threaded connection of fixed block, and it is fixed through the 6 roof pressures of screw rod that comb plate 4 that stretches into profiled groove 21 along opening 22. Specifically, after the comb plate 4 extends into the forming groove 21 along the first opening 22, the screw rod 6 is rotated to enable the end of the screw rod 6 to prop against the bottom of the comb plate 4, preferably, the size of the bottom of the comb plate 4 is larger than that of the first opening 22, so that when the screw rod 6 props against the comb plate 4, the edge of the bottom of the comb plate 4 is in compression joint with the bottom of the jig body 1, meanwhile, locking force generated by threaded matching of the screw rod 6 and the fixing block 5 plays a role in limiting and fixing the comb plate 4 in the axial direction, and the comb plate 4 is prevented from exiting from the forming groove 21 under the action of the gravity and the pressure of the composite material. This embodiment is simpler and more reliable in construction than the embodiment in which the linear drive is provided.

The utility model discloses in, singly the quantity of draw-in groove 32 is more than two, more than two on the bush 3 draw-in groove 32 arranges the setting along the axial direction of this bush 3 to the combined material of winding on bush 3 on the axial direction of bush 3 and carry out the subregion location, the guarantee winding in-process, combined material bush 3 is evenly distributed in the axial, thereby the distribution uniformity of combined material on its tip after the 7 shaping of guarantee leaf spring. A plurality of annular spacers 31 are arranged on the outer side surface of the single bushing 3, the annular spacers 31 are arranged at intervals along the axial direction of the bushing 3, and the clamping grooves 32 are formed at intervals between two adjacent annular spacers 31.

The utility model discloses in, the interior bottom surface and the medial surface radian of shaping groove 21 and the radian phase-match of waiting to shape leaf spring 7 corresponding surface, for example, when waiting to shape leaf spring 7 when straight, the interior bottom surface and the medial surface of shaping groove 21 also are straight, and when waiting to shape leaf spring 7 when crooked type, the interior bottom surface and/or the medial surface of shaping groove 21 then are the cambered surface, when the interior bottom surface of shaping groove 21 is the cambered surface that the hunch set up, on the direction of depth of shaping groove 21, two the minimum of draw-in groove 32 all is less than the minimum of this cambered surface on the bush 3, the minimum when combined material twines on draw-in groove 32 promptly can be less than the minimum of this cambered surface, guarantee winding in-process bottom combined material can paste in the interior bottom surface of shaping groove 21.

Still be provided with opening two 23 in the middle of the 2 bottoms of tool body, can be according to leaf spring 7's user demand, the structure that is used for being connected with car bearing part is installed in opening two 23 positions, and with leaf spring 7 integrated into one piece after the winding shaping, avoid the later stage to need install at the extra trompil in leaf spring 7 middle part, avoid stress concentration.

The utility model also provides a leaf spring winding former should include manipulator and foretell leaf spring tool, and during the use, the leaf spring tool is fixed on the shaping station, the manipulator drives combined material through predetermined winding route and passes shaping groove 21 and twine on the draw-in groove 32 of two bushes 3. After the device is wound and formed, the two bushings 3 and the composite material are combined into a whole to form the plate spring 7 together, the bushings 3 do not need to be additionally arranged at the end parts of the plate spring 7 in a hole forming mode or in a screw screwing mode, extra process steps are reduced, the forming efficiency of the plate spring 7 is improved, the manufacturing time and cost of the plate spring 7 are shortened, meanwhile, the integrity of the plate spring 7 cannot be damaged, the continuity of fibers in the composite material is guaranteed, stress concentration is avoided, and the service life and the reliability of the plate spring 7 are prolonged.

Claims

1. A plate spring jig is characterized by comprising a base (1) and a jig body (2) arranged on the base (1), wherein a forming groove (21) is formed in the jig body (2); still include bush (3), circumference is provided with draw-in groove (32) that are used for twining combined material on the lateral surface of bush (3), bush (3) are provided with two, two bush (3) all can be dismantled and connect on base (1) to be located the both ends outside in shaping groove (21) respectively.

2. The plate spring jig according to claim 1, further comprising a comb plate (4), wherein the comb plate (4) is provided with more than two positioning grooves (42), the comb plate (4) is arranged in the forming groove (21) in a penetrating manner, and the more than two positioning grooves (42) are arranged in the width direction of the forming groove (21) and used for positioning the composite material passing through the forming groove (21) in a partition manner in the width direction of the forming groove (21).

3. The plate spring jig according to claim 2, wherein the number of the comb plates (4) is two, and the two comb plates (4) are arranged at intervals along the length direction of the forming groove (21).

4. The plate spring jig according to claim 2 or 3, characterized in that the bottom of the jig body (2) is provided with a first opening (22), the first opening (22) is communicated with the inner bottom surface of the forming groove (21) and corresponds to the number of the comb plates (4), and the comb plates (4) extend into or withdraw from the forming groove (21) along the first opening (22).

5. The plate spring jig according to claim 4, characterized in that a fixing block (5) is arranged at the bottom of the jig body (2), a screw (6) is connected to the fixing block (5) in a threaded manner, and the comb-shaped plate (4) extending into the forming groove (21) along the first opening (22) is pressed and fixed by the screw (6).

6. The plate spring jig according to any one of claims 1 to 3 and 5, wherein the number of the locking grooves (32) on a single bush (3) is two or more, and the two or more locking grooves (32) are arranged in line in the axial direction of the bush (3).

7. The plate spring jig according to claim 6, characterized in that a plurality of annular spacers (31) are arranged on the outer side surface of a single bushing (3), the plurality of annular spacers (31) are arranged at intervals along the axial direction of the bushing (3), and the interval between two adjacent annular spacers (31) forms the clamping groove (32).

8. The plate spring fixture according to any one of claims 1-3, 5, and 7, wherein the inner bottom surface of the forming groove (21) is an arc surface which is arranged in an arch shape, and the lowest point of the clamping groove (32) on each of the two bushings (3) is lower than the lowest point of the arc surface in the depth direction of the forming groove (21).

9. The plate spring jig according to any one of claims 1 to 3, 5 and 7, characterized in that the bottom of the jig body (2) is provided with a second opening (23) in the middle.

10. A leaf spring winding forming device, characterized by comprising a manipulator and a leaf spring jig according to any one of claims 1 to 9, wherein the manipulator drives the composite material to pass through the forming grooves (21) and wind the composite material on the clamping grooves (32) of the two bushings (3).