Head cutting, edge cutting and lettering integrated die for automobile plate spring

Abstract

The utility model discloses an automobile plate spring head cutting, edge cutting and lettering integrated die which comprises an upper die frame, a lower die frame and a positioning rod, a guide sleeve is fixedly arranged at the lower end of the rear portion of the upper die frame, a guide column is fixedly arranged at the upper end of the rear portion of the lower die frame, the guide column is located under the inner side of the guide sleeve, and the upper die frame is connected with the lower die frame in a sliding mode. A positioning rod is arranged at the middle upper end of the rear end part of the lower mold frame; in general, the edge cutting and lettering integrated machine has the advantages that the structure is simple, edge cutting and lettering integration can be achieved, the machining cost is reduced, the production efficiency is improved, and the production period is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of steel leaf spring manufacturing technology, and in particular relates to an integrated mold for cutting, trimming and engraving the head of an automotive leaf spring. Background Technology

[0002] Leaf springs are the most critical damping components in automotive suspension systems, with different automotive parts using leaf springs of varying specifications. Currently, leaf spring production generally involves cold rolling and hot rolling. After hot rolling, the leaf spring sheets are trimmed using a fixed die. Following trimming, marking is then processed on a separate engraving die. Insufficient temperature can affect the marking's formation. Repeated transfers of hot parts during production can cause temperature drops, impacting the marking's quality, wasting time, and reducing the efficiency of subsequent processes. Therefore, developing an integrated trimming and engraving die for automotive leaf springs—one with a simple structure, capable of combining trimming and engraving, reducing processing costs, improving production efficiency, and shortening the production cycle—is of significant practical importance. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated mold for cutting, trimming, and engraving the head of automotive leaf springs, so as to solve the problems of excessively long production cycle and high cost in the production process of existing automotive leaf springs. Therefore, this integrated mold for cutting, trimming, and engraving the head of automotive leaf springs, which has simple structure, can realize integrated cutting and engraving, reduce processing costs, improve production efficiency, and shorten production cycle, has important application significance.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A mold for cutting, trimming, and engraving on the edge of an automotive leaf spring includes an upper mold frame, a lower mold frame, and a positioning rod. The upper mold frame is characterized by having a guide sleeve fixedly installed at the lower end of its front end, a guide post fixedly installed at the upper end of its front end, the guide post being located directly below the inner side of the guide sleeve and slidably connected to the upper mold frame, and a positioning rod being installed at the upper end of the middle of the rear end of the lower mold frame.

[0006] The upper mold frame is provided with an upper template at the top, and a fixed base is fixedly provided at the lower end of the upper template. An upper cutter is provided on the inner side of the fixed base. The front end of the upper cutter contacts the inner wall of the front end of the fixed base, and the rear end of the upper cutter is fixedly connected to the cutter fixed base. An upper engraving mold is provided in the middle of the inner side of the upper cutter. Reinforcing blocks are provided on the left and right sides of the fixed base.

[0007] The lower mold frame is provided with a lower base plate at the bottom, and a bottom mold support base is provided at the upper middle part of the lower base plate. A lower mold template is fixedly provided at the upper end of the bottom mold support base. A positioning rod is provided at the rear end of the bottom mold support base, and a positioning base is provided above the positioning rod. The positioning component is located at the upper end of the positioning base.

[0008] Furthermore, the positioning component has an L-shaped structure, and a positioning hole is provided on the bottom horizontal bar of the positioning component. By setting the positioning component on the positioning rod, the positioning component has an L-shaped structure and a positioning hole is provided on the horizontal bar of the positioning component. A bolt is inserted into the right side of the positioning component and fixedly connected to the positioning rod. The positioning component can slide left and right above the positioning rod. During use, the leaf spring is located above the horizontal bar of the positioning component, and its left side wall is in close contact with the right side wall of the vertical bar of the positioning component to complete the positioning of the leaf spring. During the positioning process, the positioning component can be adjusted left and right according to the width of the leaf spring, which has the advantages of fast positioning speed and applicability to leaf springs of different widths.

[0009] Furthermore, a positioning bolt is provided on the upper right side of the positioning component, and the bottom of the positioning bolt is fixedly connected to the positioning base.

[0010] Furthermore, a positioning pin is provided in the middle of the positioning base. The bottom of the positioning pin is threaded to the positioning base, and the top of the positioning pin passes through the positioning hole opened in the positioning component and is higher than the crossbar set in the positioning component.

[0011] Furthermore, a threaded hole is provided at the bottom of the positioning base, and a bottom bolt passes through the middle of the positioning rod and is threadedly connected to the positioning base, thereby fixing the positioning base and the positioning rod together.

[0012] Furthermore, the upper mold frame is an assembled structure, with each component fixedly connected by bolts. By setting the upper mold frame as an assembled structure, the specifications of the fixing seat, upper cutter, and upper engraving mold can be replaced according to the needs of the leaf spring during use. It is applicable to cutting and engraving leaf springs of different thicknesses and widths, which has the advantages of saving costs and improving work efficiency.

[0013] Furthermore, the cutter holder and the inner wall of the holder are an integral structure, and the cutter holder is located on the inner side of the rear end of the holder.

[0014] Furthermore, a limiting seat is fixedly installed at the lower end of the inner side wall of the front end of the fixed seat. By setting the limiting seat, the leaf spring is positioned laterally by the positioning component during the processing, and the leaf spring is positioned vertically by contacting the inner side wall of the limiting seat at the front end, which has the advantage of high efficiency.

[0015] Furthermore, the lower mold frame is an assembled structure, with each component fixedly connected by bolts.

[0016] Beneficial effects: 1. By setting a fixed seat below the upper template, an upper cutter is fixedly installed inside the fixed seat. A limit seat is fixedly installed at the front end of the upper cutter. The rear end of the upper cutter is fixedly connected to the cutter fixed seat by bolts. The cutter fixed seat and the fixed seat are an integral structure. During use, the hot-rolled leaf spring is located above the positioning rod. The upper mold frame is pressed down by the punch press. The upper cutter completes the cutting of the leaf spring, and at the same time, the upper engraving mold presses down and closely adheres to the upper side wall of the leaf spring to complete the engraving. This saves the air cooling time of the leaf spring and improves the processing efficiency. At the same time, the cutting of the leaf spring and the engraving are completed by the same mold, saving costs.

[0017] 2. A positioning rod is fixedly installed at the upper middle part of the rear end of the lower mold frame. A positioning base is installed at the upper end of the positioning rod, and a positioning component is installed at the upper end of the positioning base. A positioning hole is opened in the middle of the positioning component. A positioning bolt passes through the positioning hole and is fixedly connected to the positioning base. The positioning hole is an elongated round hole. The positioning component can slide left and right above the positioning base. In addition, a bottom bolt is inserted at the bottom of the positioning base. The bottom bolt passes through the top of the elongated hole opened in the middle of the positioning rod and is connected to the positioning base. The positioning base can drive the positioning component and the positioning pin to slide back and forth above the positioning rod. During use, the leaf spring is located above the horizontal bar set by the positioning component, and the left side wall is in close contact with the right side wall of the vertical bar set by the positioning component to complete the lateral positioning of the leaf spring. In addition, the leaf spring has a positioning hole opened in advance. The positioning hole is sleeved on the outside of the positioning pin to complete the longitudinal positioning of the leaf spring. During the positioning process, the positioning component can be adjusted left and right according to the width of the leaf spring, and can also be adjusted longitudinally according to the position of the positioning hole and the length of the leaf spring. It has the advantages of fast positioning speed and applicability to leaf springs of different widths and lengths.

[0018] 3. By setting a bottom mold support base at the upper middle part of the lower mold frame, and fixing a lower template at the upper end of the bottom mold support base, a lettering mold is engraved on the lower template. During use, the leaf spring is located above the lower template. The lower template and the upper mold frame cooperate to complete the leaf spring cutting action. At the same time, the lettering mold completes the leaf spring engraving process during the leaf spring cutting process, which improves processing efficiency. At the same time, the leaf spring cutting and engraving are completed by the same mold, saving costs. In summary, this utility model has the advantages of simple structure, integrated cutting and engraving, reduced processing costs, improved production efficiency, and shortened production cycle. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the lower mold frame of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the upper mold frame of this utility model.

[0022] Attached reference numerals: 0, mold body; 1, lower mold frame; 10, lower base plate; 11, bottom mold support seat; 12, lower template; 2, guide pillar; 3, upper mold frame; 30, upper template; 31, fixing seat; 32, upper cutter; 33, cutter fixing seat; 34, upper engraving mold; 35, reinforcing block; 36, limit seat; 4, guide sleeve; 5, positioning rod; 6, positioning component; 7, positioning base; 8, positioning pin; 9, positioning bolt. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] Specific embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides an integrated mold for cutting and engraving the edge of an automotive leaf spring, including an upper mold frame 3, a lower mold frame 1, and a positioning rod 5. A guide sleeve 4 is fixedly provided at the lower front end of the upper mold frame 3, and a guide post 2 is fixedly provided at the upper front end of the lower mold frame 1. The guide post 2 is located directly below the inner side of the guide sleeve 4 and is slidably connected between the upper mold frame 3 and the lower mold frame 1. The positioning rod 5 is provided at the upper middle part of the rear end of the lower mold frame 2.

[0025] The upper mold frame 3 is provided with an upper template 30 at the top, and a fixed base 31 is fixedly provided at the lower end of the upper template 30. An upper cutter 32 is provided on the inner side of the fixed base 31. The front end of the upper cutter 32 contacts the inner wall of the top of the fixed base 31, and the rear end of the upper cutter 32 is fixedly connected to the cutter fixed base 33. An upper engraving mold 34 is provided in the middle of the inner side of the upper cutter 32. Reinforcing blocks 35 are provided on the left and right sides of the fixed base 31.

[0026] The lower mold frame 1 is provided with a lower base plate 10 at the bottom, and a bottom mold support base 11 is provided at the upper middle part of the lower base plate 10. A lower template 12 is fixedly provided at the upper end of the bottom mold support base 11. A positioning rod 5 is provided at the rear end of the bottom mold support base 11, and a positioning component 6 is located at the upper end of the positioning rod 5.

[0027] like Figure 3 As shown, a fixed seat 31 is set below the upper template 30, and an upper cutter 32 is fixedly set inside the fixed seat 31. A limit seat 36 is fixedly set at the front end of the upper cutter 32, and the rear end of the upper cutter 32 is fixedly connected to the cutter fixed seat 33 by bolts. The cutter fixed seat 33 and the fixed seat 31 are an integral structure. During use, the hot-rolled leaf spring is located above the positioning rod 5. The upper mold frame 3 is pressed down under the drive of the punch. The upper cutter 32 completes the cutting of the leaf spring, and at the same time the upper engraving mold 34 is pressed down and pressed tightly against the upper side wall of the leaf spring to complete the engraving.

[0028] like Figure 2As shown, a positioning rod 5 is fixedly installed at the upper middle part of the rear end of the lower mold frame 1. A positioning base 7 is provided at the upper end of the positioning rod 5, and a positioning element 6 is provided at the upper end of the positioning base 7. A positioning hole is opened in the middle of the positioning element 6, and a positioning bolt 9 passes through the positioning hole and is fixedly connected to the positioning base 7. The positioning hole is an elongated circular hole, and the positioning element 6 can slide left and right above the positioning base 7. In addition, a bottom bolt is inserted at the bottom of the positioning base 7. The bottom bolt passes through the top of the elongated hole opened in the middle of the positioning rod 5 and is connected to the positioning base 7. The positioning base 7 can drive the positioning element 6 and the positioning pin 8 to a fixed position. The spring plate slides back and forth above the positioning rod 5. During use, the spring plate is positioned above the horizontal bar of the positioning component 6, and its left side wall is in close contact with the right side wall of the vertical bar of the positioning component 6 to complete the horizontal positioning of the spring plate. In addition, the spring plate has a positioning hole in advance, which is sleeved on the outside of the positioning pin 8 to complete the vertical positioning of the spring plate. The bottom of the positioning pin 8 is threaded to the fixed base 7. During use, it can be replaced according to the size of the reserved hole of the spring plate. During the positioning process, the positioning component 6 can be adjusted left and right according to the width of the spring plate, and can also be adjusted vertically according to the position of the positioning hole and the length of the spring plate.

[0029] like Figure 2 As shown, a bottom mold support base 11 is set at the upper middle part of the lower mold frame 1. A lower template 12 is fixedly set at the upper end of the bottom mold support base 11. A lettering mold is engraved on the lower template 12. During use, the leaf spring is located above the lower template 12. The lower template 12 and the upper mold frame 3 cooperate to complete the leaf spring cutting function. At the same time, the lettering mold completes the leaf spring engraving process during the leaf spring cutting process.

[0030] like Figure 1 , Figure 2 As shown, the positioning component 6 has an L-shaped structure, and a positioning hole is provided on the bottom horizontal bar of the positioning component 6. By setting the positioning component 6 on the positioning rod 5, the positioning component 6 has an L-shaped structure, and a positioning hole is provided on the horizontal bar of the positioning component 6. A bolt is inserted into the right side of the positioning component 6 and fixedly connected to the positioning rod 5. The positioning component 6 can slide left and right above the positioning rod 5. During use, the leaf spring is located above the horizontal bar of the positioning component 6, and its left side wall is in close contact with the right side wall of the vertical bar of the positioning component 6 to complete the positioning of the leaf spring. During the positioning process, the positioning component can be adjusted left and right according to the width of the leaf spring.

[0031] like Figure 1 , Figure 2 As shown, a positioning bolt 9 is provided on the upper right side of the positioning component 6, and the bottom of the positioning bolt 9 is fixedly connected to the positioning base 7.

[0032] like Figure 1 , Figure 2 As shown, a positioning pin 8 is provided in the middle of the positioning base 7. The bottom of the positioning pin 8 is threaded to the positioning base 7, and the top of the positioning pin 8 passes through the positioning hole opened in the positioning member 6 and is higher than the crossbar set in the positioning member 6.

[0033] like Figure 1 , Figure 2 As shown, the bottom of the positioning base 7 has a threaded hole, and the bottom bolt passes through the middle of the positioning rod 5 and is threadedly connected to the positioning base 7, thereby fixing the positioning base 7 and the positioning rod 5 together.

[0034] like Figure 3 As shown, the upper mold frame 3 is an assembled structure, and the components are fixedly connected by bolts. By setting the upper mold frame 3 as an assembled structure, the specifications of the fixing seat 31, upper cutter 32, and upper engraving mold 34 can be replaced according to the needs of the leaf spring during use, which can be applied to the cutting of leaf springs of different thicknesses and widths.

[0035] like Figure 3 As shown, the cutter fixing seat 33 and the inner wall of the fixing seat 31 are an integral structure, and the cutter fixing seat 33 is located on the inner side of the rear end of the fixing seat 31.

[0036] like Figure 3 As shown, a limiting seat 36 is fixedly installed at the lower end of the inner side wall of the front end of the fixed seat 31; by setting the limiting seat 36, the leaf spring is positioned laterally by the positioning member 6 during the processing, and the front end of the leaf spring contacts the inner side wall of the limiting seat 36 to complete the vertical positioning of the leaf spring.

[0037] like Figure 2 As shown, the lower mold frame 1 is an assembled structure, and the components are fixedly connected by bolts.

[0038] When using this utility model: as follows Figure 1 , Figure 2 , Figure 3As shown, firstly, the upper die set 3 needs to be fixedly connected to the upper part of the punch press, and the lower die set 1 needs to be fixedly connected to the lower part of the punch press. Select appropriate positioning rods 5 and positioning pieces 6 according to the length and width of the leaf spring. Place the positioning base 7 above the positioning rod 5 and position it appropriately. Simultaneously, insert the bottom bolt into the bottom screw hole at the bottom of the positioning base and fix it to the positioning rod 5. Place the positioning piece 6 above the positioning base 7 at an appropriate position and pass the positioning bolt 9 through the bottom of the positioning hole to fix it to the positioning base 7. At the same time, adjust the lateral position of the positioning piece 6 according to the width, length, and position of the reserved hole in the leaf spring. Adjust the longitudinal position of the positioning base 7 and the positioning pin 8 according to the length of the leaf spring and the position of the reserved hole. Then, place the rolled leaf spring on the horizontal bar set on the positioning piece 6. Simultaneously, the pre-drilled hole on the leaf spring is fitted onto the outside of the positioning pin 8, and the front end of the leaf spring is placed on the upper end of the lower template 12. The punch press is started, and the punch press drives the upper mold frame 3 to press down. During the pressing down of the upper mold frame 3, the upper cutter 32 cooperates with the lower template 12 to complete the leaf spring edge cutting. In addition, an upper engraving mold 34 is set between the upper cutters 32. The punch press drives the upper mold frame 3 to press down and the upper engraving mold 34 to press down and cooperate with the lower template 12 to complete the leaf spring engraving process. The leaf spring edge cutting and engraving process does not require the leaf spring to be air-cooled before the process is completed, saving time and improving efficiency. At the same time, the leaf spring edge cutting and engraving are completed by the same mold, saving costs. In summary, this utility model has the advantages of simple structure, integrated edge cutting and engraving, reduced processing costs, improved production efficiency, and shortened production cycle.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this invention, and all such modifications or substitutions should be covered within the scope of the claims of this invention.

Claims

1. A one-piece mold for cutting, trimming, and engraving the edges of an automotive leaf spring, comprising an upper mold frame (3), a lower mold frame (1), and a positioning rod (5), characterized in that: The upper mold frame (3) is fixedly provided with a guide sleeve (4) at the lower end of the front end, and the lower mold frame (1) is fixedly provided with a guide post (2) at the upper end of the front end. The guide post (2) is located directly below the inner side of the guide sleeve (4) and is slidably connected between the upper mold frame (3) and the lower mold frame (1). The lower mold frame (1) is provided with a positioning rod (5) at the upper end of the middle of the rear end. The upper mold frame (3) is provided with an upper template (30) at the top. A fixed seat (31) is fixedly provided at the lower end of the upper template (30). An upper cutter (32) is provided on the inner side of the fixed seat (31). The front end of the upper cutter (32) contacts the inner wall of the front end of the fixed seat (31). The rear end of the upper cutter (32) is fixedly connected to the cutter fixed seat (33). An upper engraving mold (34) is provided in the middle of the inner side of the upper cutter (32). Reinforcing blocks (35) are provided on the left and right sides of the fixed seat (31). The lower mold frame (1) is provided with a lower base plate (10) at the bottom. A bottom mold support base (11) is provided at the upper middle part of the lower base plate (10). A lower template (12) is fixedly provided at the upper end of the bottom mold support base (11). A positioning rod (5) is provided at the rear end of the bottom mold support base (11). A positioning base (7) is provided above the positioning rod (5). A positioning component (6) is located at the upper end of the positioning base (7).

2. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 1, characterized in that, The positioning component (6) has an L-shaped structure, and a positioning hole is provided on the bottom crossbar of the positioning component (6).

3. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 2, characterized in that, The positioning component (6) is provided with a positioning bolt (9) on the upper right side, and the bottom of the positioning bolt (9) is fixedly connected to the positioning base (7).

4. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 3, characterized in that, The positioning base (7) is provided with a positioning pin (8) in the middle. The bottom of the positioning pin (8) is threaded to the positioning base (7), and the top of the positioning pin (8) passes through the positioning hole opened in the positioning component (6) and is higher than the crossbar set in the positioning component (6).

5. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 4, characterized in that, The positioning base (7) has a threaded hole at the bottom. The bottom bolt passes through the middle of the positioning rod (5) and is threadedly connected to the positioning base (7), thereby fixing the positioning base (7) and the positioning rod (5) together.

6. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 1, characterized in that, The upper mold frame (3) is an assembled structure, and the components are fixedly connected by bolts.

7. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 1, characterized in that, The cutter fixing seat (33) and the inner wall of the fixing seat (31) are an integral structure, and the cutter fixing seat (33) is located on the inner side of the rear end of the fixing seat (31).

8. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 7, characterized in that, A limiting seat (36) is fixedly provided at the lower end of the inner side wall of the front end of the fixed seat (31).

9. The integrated mold for cutting, trimming, and engraving the edge of an automotive leaf spring according to claim 1, characterized in that, The lower mold frame (1) is an assembled structure, and the components are fixedly connected by bolts.

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