Precise bidirectional trimming tool for narrow-surface control arm

By designing a precise bidirectional cutting fixture for a narrow-face control arm and employing a technology that drives the left and right cutters to approach each other, the problem of a large number of molds and low efficiency during the cutting process of the narrow-face control arm is solved, achieving a high-efficiency and low-cost bidirectional cutting effect.

CN224181825UActive Publication Date: 2026-05-01TOWER AUTOMOTIVE (WUHU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TOWER AUTOMOTIVE (WUHU) CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In the existing technology, the left and right arc-shaped cuts of the narrow face control arm need to be processed using two sets of molds, resulting in high mold development and manufacturing costs and low work efficiency.

Method used

A precision bidirectional edge-cutting fixture with a narrow-face control arm is designed. It uses left and right cutters that are close to each other. The left and right cutters are driven to move closer to each other by left and right drives respectively, so as to cut the edges of both sides of the workpiece simultaneously. The lower support block and the upper mold are used for support and positioning, reducing the amount of mold used.

Benefits of technology

It improved production efficiency, reduced the amount of molds used and manufacturing costs, and enabled simultaneous cutting of both sides of the workpiece, ensuring the accuracy of the cutting and the consistency of the products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a narrow-face control arm precise bidirectional trimming tool which comprises an upper die and a lower die which are matched with each other, the lower die comprises a lower supporting block used for supporting the trimming position of a workpiece, a left cutter and a right cutter, the left cutter and the right cutter can be close to each other, and the upper die comprises a left drive and a right drive. The left drive and the right drive are matched with the left cutter and the right cutter correspondingly and used for driving the left cutter and the right cutter to get close to each other to achieve edge cutting of a workpiece. The upper surface of the lower supporting block is provided with a curved surface consistent with the lower surface of a workpiece in a profiling mode, and the left drive and the right drive are wedge-shaped pieces respectively. The precise bidirectional trimming tool for the narrow-face control arm comprises a left cutter and a right cutter which can be close to each other, and the two sides of a workpiece can be trimmed at the same time through the mutual approaching of the left cutter and the right cutter.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece cutting, specifically to a narrow-face control arm precision bidirectional cutting fixture. Background Technology

[0002] During vehicle assembly, the narrow-faced control arm needs to overlap with the vehicle's wiring harness. To avoid interference, the overlap area of ​​the narrow-faced control arm needs to be trimmed to allow space for the wiring harness. Additionally, two arc-shaped cuts need to be made on the left and right sides of the overlap area of ​​the narrow-faced control arm to mate with the outer surface of the cylindrical wiring harness.

[0003] Currently, during the production process, the two arc-shaped cuts on the left and right sides of the overlap of the narrow-faced control arm need to be processed separately. One set of molds is used to cut off the left cut of the narrow-faced control arm, and another set of molds is used to cut off the right cut of the narrow-faced control arm. Using two sets of molds to perform the edge cutting operation on the narrow-faced control arm not only increases the cost of mold development and manufacturing, but also results in low work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a precision bidirectional cutting tooling for a narrow-faced control arm. This tooling includes a left cutter and a right cutter that can move close to each other. By moving the left cutter and the right cutter close to each other, both sides of the workpiece can be cut simultaneously.

[0005] To achieve the above objectives, this utility model provides a narrow-face control arm precision bidirectional cutting tooling, including an upper die and a lower die that cooperate with each other. The lower die includes a lower support block for supporting the cutting position of the workpiece and a left cutter and a right cutter that can move closer to each other. The upper die includes a left drive and a right drive. The left drive and the right drive cooperate with the left cutter and the right cutter respectively to drive the left cutter and the right cutter to move closer to each other to cut the workpiece.

[0006] The upper surface of the lower support block is provided with a curved surface that conforms to the lower surface of the workpiece, and the left drive and right drive are respectively set as wedge-shaped parts.

[0007] Preferably, the lower mold further includes a first guide mechanism, one end of which is connected to the left cutter or the right cutter, and the other end of which is engaged with the left drive or the right drive.

[0008] Preferably, the first guiding mechanism includes a guide member and a working part that can move along the guide member. The guide member is fixedly installed, one end of the working part is connected to the left cutter or the right cutter, and the other end of the working part is engaged with the left drive or the right drive.

[0009] Preferably, the surface of the left or right drive that mates with the workpiece is set as a first inclined surface, and the side of the left or right drive that faces away from the first inclined surface is provided with a first guide surface.

[0010] Preferably, the first guide mechanism further includes a return spring, one end of which is fixedly disposed and the other end is connected to the working piece.

[0011] Preferably, the upper mold further includes an upper fixing block, which cooperates with the lower support block to fix the workpiece.

[0012] Preferably, the upper mold further includes a base plate, a compressible elastic component, and an upper mold housing that cooperates with the base plate. The base plate is slidably connected to the upper mold housing through the compressible elastic component, and the upper fixing block is connected to the base plate.

[0013] The base plate is provided with multiple through holes. The upper ends of the left drive and right drive are connected to the upper mold housing, and the lower ends are respectively passed through multiple through holes.

[0014] Preferably, the narrow-face control arm precision bidirectional cutting tooling also includes a second guiding mechanism, which includes a guide rod and a guide sleeve, and the guide rod and guide sleeve are respectively disposed on the upper mold and the lower mold.

[0015] Preferably, the lower die has a discharge port at the position where the left cutter and the right cutter meet.

[0016] Preferably, a feeding trough is provided below the feeding port.

[0017] According to the above technical solution, the upper surface of the lower support block of this utility model is provided with a curved surface that conforms to the lower surface of the workpiece. After the workpiece is placed on the lower support block, the lower support block can limit the workpiece. Then, the upper die descends, and the left drive and right drive respectively drive the left cutter and the right cutter to move closer to each other, so as to achieve the purpose of simultaneously cutting both sides of the workpiece. During the cutting process, the upper surface of the lower support block can support the cutting position of the workpiece, avoiding deformation of the workpiece at the cutting position when the left cutter and the right cutter cut the workpiece.

[0018] In one embodiment, the left drive and left cutter and the right drive and right cutter are respectively configured as wedges that can cooperate with each other. Through the cooperation of the wedges, when the upper die descends, the left drive and right drive descend simultaneously. During the descent of the left drive, the left cutter can be pushed to move horizontally towards the right cutter, and during the descent of the right drive, the right cutter can be pushed to move horizontally towards the left cutter. Therefore, when the upper die descends, the left cutter and right cutter can approach each other along the upper surface of the lower die and cut the edges of both sides of the workpiece simultaneously during the movement.

[0019] Preferably, the lower die also includes a linear slide rail. The left cutter and the right cutter are connected to the lower die body through the linear slide rail. During the descent of the upper die, the left cutter and the right cutter can maintain linear motion through the guiding effect of the linear slide rail, thereby achieving a reliable cutting effect on both sides of the workpiece.

[0020] Taking the left drive and left cutter as an example, the lower end of the left drive is set as the small end. During the descent of the left drive, its small end will cooperate with the inclined surface of the left cutter. As the left drive continues to descend, it will push the left cutter horizontally, thereby achieving the purpose of the left cutter moving closer to the right cutter. When the left and right drives on both sides act simultaneously, the left and right cutters move closer to each other at the same time to cut the workpiece from both sides simultaneously.

[0021] Therefore, using this narrow-face control arm precision bidirectional cutting fixture can simultaneously cut both sides of the workpiece, which not only improves production efficiency, but more importantly, reduces the amount of molds used, effectively reducing mold manufacturing costs.

[0022] Preferably, multiple sets of cutters and drives can be symmetrically arranged in the same mold, enabling simultaneous trimming of multiple workpieces.

[0023] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a structural schematic diagram of a precision bidirectional edge-cutting fixture for a narrow-faced control arm;

[0026] Figure 2 yes Figure 1 Top view;

[0027] Figure 3 This is a schematic diagram illustrating the working principle of a narrow-face control arm precision bidirectional edge cutting fixture.

[0028] Figure 4 This is a schematic diagram illustrating the operating principle of a right-hand cutting blade.

[0029] Figure 5 It is a three-dimensional image of a mold.

[0030] Figure 6 yes Figure 5 Top view;

[0031] Figure 7This is a schematic diagram of a structure for removing the upper mold shell from the upper mold;

[0032] Figure 8 This is a schematic diagram of the structure of a lower mold;

[0033] Figure 9 yes Figure 8 Top view.

[0034] Explanation of reference numerals in the attached figures

[0035] 1. Lower support block 21. Left cutter

[0036] 31 Right cutter 22 Left drive

[0037] 32 right drive 10 workpieces

[0038] 41 Guide component 42 Working component

[0039] 43 first bevel 44 second bevel

[0040] 45 return spring, 51 base plate

[0041] 52 Upper fixing block 53 Compressible elastic component

[0042] 54 Upper mold housing 61 Guide rod

[0043] 62 guide sleeve 48 first guide surface

[0044] 72 Feed chute 46 Second guide surface

[0045] 47 Connecting plate 81 Upper pressure surface

[0046] 82 Downward Pressure Surface Detailed Implementation

[0047] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0048] In this utility model, unless otherwise stated, directional words such as "one end," "the other end," "outer surface," "axis," "conical," and "near" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0049] See Figure 1The present invention relates to a narrow-face control arm precision bidirectional cutting tooling, comprising an upper die and a lower die that cooperate with each other. The lower die includes a lower support block 1 for supporting the cutting position of the workpiece 10 and a left cutter 21 and a right cutter 31 that can move closer to each other. The upper die includes a left drive 22 and a right drive 32, which cooperate with the left cutter 21 and the right cutter 31 respectively to drive the left cutter 21 and the right cutter 31 to move closer to each other to cut the workpiece 10.

[0050] The upper surface of the lower support block 1 is provided with a curved surface that conforms to the lower surface of the workpiece 10, and the left drive 22 and the right drive 32 are respectively set as wedge-shaped parts.

[0051] Through the implementation of the above technical solution, the upper surface of the lower support block 1 is provided with a curved surface that conforms to the lower surface of the workpiece 10. After the workpiece 10 is placed on the lower support block 1, the lower support block 1 can limit the workpiece 10. Then, the upper mold descends, and the left drive 22 and the right drive 32 drive the left cutter 21 and the right cutter 31 to move closer to each other, so as to achieve the purpose of simultaneously cutting both sides of the workpiece 10. During the cutting process, the upper surface of the lower support block 1 can support the cutting position of the workpiece 10, so as to avoid deformation of the workpiece 10 at the cutting position when the left cutter 21 and the right cutter 31 cut the workpiece 10.

[0052] In one embodiment, the left drive 22 and the left cutter 21, and the right drive 32 and the right cutter 31 are respectively configured as wedges that can cooperate with each other. Through the cooperation of the wedges, when the upper die descends, the left drive 22 and the right drive 32 descend simultaneously. During the descent of the left drive 22, it can push the left cutter 21 to move horizontally towards the right cutter 31, and during the descent of the right drive 32, it can push the right cutter 31 to move horizontally towards the left cutter 21. Therefore, when the upper die descends, the left cutter 21 and the right cutter 31 can approach each other along the upper surface of the lower die and cut the edges of both sides of the workpiece 10 simultaneously during the movement.

[0053] Preferably, the lower die also includes a linear slide rail. The left cutter 21 and the right cutter 31 are respectively connected to the lower die body through the linear slide rail. During the descent of the upper die, the left cutter 21 and the right cutter 31 can maintain linear motion through the guiding effect of the linear slide rail, thereby achieving a reliable cutting effect on both sides of the workpiece 10.

[0054] Taking the left drive 22 and the left cutter 21 as an example, the lower end of the left drive 22 is set as the small end. During the descent of the left drive 22, its small end will cooperate with the inclined surface of the left cutter 21. As the left drive 22 continues to descend, it will push the left cutter 21 horizontally, thereby achieving the purpose of the left cutter 21 moving closer to the right cutter 31. When the left drive 22 and the right drive 32 on both sides act simultaneously, the left cutter 21 and the right cutter 31 move closer to each other at the same time to cut the workpiece 10 from both sides simultaneously.

[0055] Therefore, using this narrow-face control arm precision bidirectional cutting fixture can simultaneously cut both sides of the workpiece 10, which not only improves production efficiency, but more importantly, reduces the amount of mold used, effectively reducing the mold manufacturing cost.

[0056] Preferably, multiple sets of cutters and drives can be symmetrically arranged in the same mold, enabling simultaneous trimming of multiple workpieces 10. For example... Figure 5 and 6 As shown, the same upper mold simultaneously drives two sets of driving components to descend, which cooperate with two sets of cutting blades on the lower mold to cut the edges of two workpieces 10. That is, the upper mold can cut the edges of two workpieces 10 in one operation.

[0057] In this preferred embodiment, the lower mold further includes a first guide mechanism, one end of which is connected to the left cutter 21 or the right cutter 31, and the other end of which is engaged with the left drive 22 or the right drive 32.

[0058] The left cutter 21 and right cutter 31 are frequently used and prone to wear, requiring frequent replacement. Therefore, both the left cutter 21 and right cutter 31 need to be detachably connected to the mold body. By setting a first guide mechanism as the transmission mechanism, when the cutter wears out and needs replacement, only the cutter needs to be replaced, and the transmission mechanism can still be used. Therefore, setting a first guide mechanism can reduce the usage cost of the narrow-face control arm precision bidirectional cutting fixture.

[0059] One end of the first guide mechanism is provided with an inclined surface that cooperates with the left drive 22 or the right drive 32. When the left drive 22 or the right drive 32 descends, it will push the first guide mechanism forward through the inclined surface. The other end of the first guide mechanism is fixedly connected to the left cutter 21 or the right cutter 31. Therefore, the left cutter 21 or the right cutter 31 will move closer to each other to cut the edge of the workpiece 10.

[0060] In this embodiment, preferably, the first guiding mechanism includes a guide member 41 and a working member 42 that can move along the guide member 41. The guide member 41 is fixedly installed, one end of the working member 42 is connected to the left cutter 21 or the right cutter 31, and the other end of the working member 42 is engaged with the left drive 22 or the right drive 32.

[0061] In one embodiment, the guide member 41 is configured as a guide rod, and the working member 42 is provided with a guide hole that cooperates with the guide rod, so that the working member 42 can move linearly along the guide rod.

[0062] In one embodiment, the guide member 41 is provided with a guide groove, and the working member 42 cooperates with the guide groove and moves linearly along the guide groove.

[0063] The working piece 42 is provided with an inclined surface that cooperates with the left drive 22 or the right drive 32. When the left drive 22 or the right drive 32 descends, the working piece 42 moves in a straight line under the action of the guide 41, thereby driving the left cutter 21 or the right cutter 31.

[0064] In this embodiment, preferably, the surface of the left drive 22 or the right drive 32 that mates with the working piece 42 is set as a first inclined surface 43, and the side of the left drive 22 or the right drive 32 facing away from the first inclined surface (43) is provided with a first guide surface 48.

[0065] The left drive 22 or the right drive 32 is provided with a first inclined surface 43, and the working piece 42 is provided with a second inclined surface 44. The first inclined surface 43 and the second inclined surface 44 cooperate to push the working piece 42 during the descent of the left drive 22 or the right drive 32, and achieve linear motion in cooperation with the guide 41.

[0066] By setting the first guide surface 48, the position of the left drive 22 or right drive 32 after its descent can be restricted. The second guide surface 46 is fixedly set. Through the cooperation of the second guide surface 46 and the first guide surface 48, the relative position of the left drive 22 or right drive 32 with the lower mold during the descent is restricted. This makes the drive of the left cutter 21 or right cutter 31 by the first guide mechanism more reliable, and avoids the situation where the left drive 22 or right drive 32 does not move to the correct position due to inaccurate positioning, resulting in incomplete cutting.

[0067] In this embodiment, preferably, the first guide mechanism further includes a return spring 45, one end of which is fixedly disposed and the other end is connected to the working piece 42.

[0068] In one embodiment, a connecting plate 47 is provided on the side of the return spring 45 facing the working part 42, and the working part 42 is fixedly connected to the connecting plate 47.

[0069] like Figure 3-4 As shown, the interaction between the right drive 32 and the right cutter 31 is illustrated as an example. The workpiece 42 is pushed by the right drive 32 to move towards the left cutter 21. During the movement of the workpiece 42, the return spring 45 is compressed. When the upper mold rises, the right drive 32 gradually rises. During the recovery process, the return spring 45 pushes the connecting plate 47 to reset the workpiece 42.

[0070] Therefore, by setting a reset spring 45, the left cutter 21 or the right cutter 31 can be reset after the cutting operation of the workpiece 10 is completed, thereby achieving the purpose of continuous production.

[0071] Preferably, the return spring 45 is a nitrogen spring. Since the elastic force of a nitrogen spring has a non-linear relationship with the amount of compression, its elastic force is not significantly affected by the amount of deformation. This ensures that the left cutter 21 or the right cutter 31 can maintain a stable force on the workpiece 10 when cutting it.

[0072] In this embodiment, preferably, the upper mold further includes an upper fixing block 52, which cooperates with the lower support block 1 to fix the workpiece 10.

[0073] The lower support block 1 and the upper fixing block 52 are respectively provided with curved surfaces that conform to the shape of the lower and upper surfaces of the workpiece 10. When the workpiece 10 is placed on the lower support block 1, the lower support block 1 can support the workpiece 10. When the left cutter 21 and the right cutter 31 cut the edge of the workpiece 10, the upper fixing block 52 presses on the upper surface of the workpiece 10. Under the combined action of the lower support block 1 and the upper fixing block 52, the workpiece 10 can maintain a stable position during the cutting operation, thereby ensuring the reliability of the narrow-face control arm's precise bidirectional cutting tool for cutting the edge of the workpiece 10 and the consistency of the products obtained after multiple operations.

[0074] Preferably, the lower support block 1 is provided with a groove on the movement trajectory of the left cutter 21 and the right cutter 31 to avoid interference with the left cutter 21 and the right cutter 31.

[0075] Preferably, in addition to the lower support block 1 and the upper fixing block 52 cooperating to fix the workpiece 10, the upper mold is also provided with an upper pressing surface 81 and the lower mold is provided with a lower pressing surface 82. Both the upper pressing surface 81 and the lower pressing surface 82 are provided with curved surfaces that conform to the surface shape of the workpiece 10. During the mold closing process, the upper pressing surface 81 and the lower pressing surface 82 are located on the upper surface and the lower surface of the workpiece 10 respectively, and reliably fix the workpiece 10, which can reliably ensure the stability of the workpiece 10 during the edge cutting process.

[0076] In this embodiment, preferably, the upper mold further includes a base plate 51, a compressible elastic member 53, and an upper mold housing 54 that cooperates with the base plate 51. The base plate 51 is slidably connected to the upper mold housing 54 through the compressible elastic member 53, and the upper fixing block 52 is connected to the base plate 51.

[0077] The base plate 51 is provided with multiple through holes. The upper ends of the left drive 22 and the right drive 32 are connected to the upper mold housing 54, and the lower ends are respectively passed through multiple through holes.

[0078] The base plate 51 has a fixing block 52 and an upper pressure surface 81 on the side facing the lower mold to position the workpiece 10. During the descent of the upper mold, the upper pressure surface 81 and the upper fixing block 52 need to first contact the workpiece 10 and apply a certain pressure to the workpiece 10 to achieve reliable fixation of the workpiece 10.

[0079] The upper die then continues to descend, but the fixed block 52 and the upper pressure surface 81 stop moving. Meanwhile, the left drive 22 and the right drive 32 continue to descend and gradually drive the left cutter 21 and the right cutter 31 to move closer to each other until the left cutter 21 and the right cutter 31 cut the edge of the workpiece 10.

[0080] Therefore, during the descent of the upper die, the strokes of the left drive 22 and the right drive 32 are greater than the stroke of the base plate 51. Thus, the base plate 51 is provided with multiple through holes. The upper ends of the left drive 22 and the right drive 32 are connected to the upper die housing 54, and their lower ends protrude through these holes. As the press descends, it pushes the upper die housing 54 downwards. Initially, the base plate 51 and the upper die housing 54 descend together. When the fixing block 52 and the upper pressure surface 81 on the base plate 51 contact the upper surface of the workpiece 10, the workpiece 10 will block the base plate 51 from continuing to descend. As the press continues to descend, the upper die housing 54 continues to descend. At this time, the compressible elastic component 53 between the base plate 51 and the upper die housing 54 is compressed. The compressed compressible elastic component 53 applies pressure to the workpiece 10 through the fixing block 52 and the upper pressure surface 81, thereby ensuring the fixation of the workpiece 10. Since the upper ends of the left drive 22 and the right drive 32 are connected to the upper mold housing 54, after the base plate 51 stops descending, the left drive 22 and the right drive 32 can continue to descend through the through holes on the base plate 51, and drive the left cutter 21 and the right cutter 31 to complete the cutting during the descent.

[0081] Preferably, if the left drive 22 or the right drive 32 is located close to the workpiece 10, a through hole for the left drive 22 or the right drive 32 needs to be provided on the base plate 51. However, due to the action of the first guide mechanism, the left drive 22 or the right drive 32 has moved away from the workpiece 10, so the left drive 22 or the right drive 32 can be directly set outside the base plate 51. In this case, it is not necessary to provide a through hole for the left drive 22 or the right drive 32 on the base plate 51.

[0082] Preferably, the compressible elastic component 53 is configured as a nitrogen spring. Since the elastic force of a nitrogen spring has a non-linear relationship with the amount of compression, its elastic force is not significantly affected by the amount of deformation. Therefore, when using a nitrogen spring as the compressible elastic component 53, the pressure applied to the workpiece 10 by the fixing block 52 and the upper pressure surface 81 during the trimming process can remain stable, which is beneficial for the workpiece 10 to remain stable during the trimming process, thereby ensuring the reliability of the trimming.

[0083] In this embodiment, preferably, the narrow-face control arm precision bidirectional cutting tooling also includes a second guiding mechanism, which includes a guide rod 61 and a guide sleeve 62, which are respectively disposed on the upper mold and the lower mold.

[0084] The cooperation between guide rod 61 and guide sleeve 62 ensures that the upper die maintains a stable relative position with the lower die during the descent process, which is beneficial for positioning the workpiece 10 and stabilizing the cutting process.

[0085] In this embodiment, preferably, the lower die has a discharge port at the position where the left cutter 21 and the right cutter 31 cooperate.

[0086] The left cutter 21 and the right cutter 31 move close to each other to complete the edge trimming operation on the workpiece 10. After the edge trimming is completed, the scrap material that has been removed can fall into the feed port below and be discharged. Then, the workpiece 10 can continue to be placed, and the edge trimming of the workpiece 10 can continue, thereby achieving the purpose of continuous production.

[0087] In this embodiment, preferably, a feeding trough 72 is provided below the feeding port.

[0088] The cut-off waste material falls through the discharge port into the lower mold, and is then discharged along the discharge groove 72.

[0089] In this way, the narrow-faced control arm precision bidirectional cutting fixture can automatically clean up waste materials. Preferably, the narrow-faced control arm precision bidirectional cutting fixture, in conjunction with a robotic arm, automatically grips and places the workpiece 10, enabling continuous production at this station.

[0090] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0091] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0092] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A precision bidirectional cutting fixture for a narrow-faced control arm, characterized in that, The upper and lower dies are designed to work together. The lower die includes a lower support block (1) for supporting the cutting edge position of the workpiece (10) and a left cutter (21) and a right cutter (31) that can move closer to each other. The upper die includes a left drive (22) and a right drive (32). The left drive (22) and the right drive (32) work together with the left cutter (21) and the right cutter (31) respectively to drive the left cutter (21) and the right cutter (31) to move closer to each other to cut the edge of the workpiece (10). The upper surface of the lower support block (1) is provided with a curved surface that conforms to the lower surface of the workpiece (10), and the left drive (22) and right drive (32) are respectively set as wedge-shaped parts.

2. The precision bidirectional cutting fixture for narrow-face control arms according to claim 1, characterized in that, The lower mold also includes a first guide mechanism, one end of which is connected to the left cutter (21) or the right cutter (31), and the other end is engaged with the left drive (22) or the right drive (32).

3. The precision bidirectional cutting fixture for narrow-face control arms according to claim 2, characterized in that, The first guiding mechanism includes a guide (41) and a working part (42) that can move along the guide (41). The guide (41) is fixedly installed. One end of the working part (42) is connected to the left cutter (21) or the right cutter (31), and the other end of the working part (42) is engaged with the left drive (22) or the right drive (32).

4. The precision bidirectional cutting fixture for narrow-face control arms according to claim 3, characterized in that, The surface of the left drive (22) or right drive (32) that mates with the workpiece (42) is set as a first inclined surface (43), and the side of the left drive (22) or right drive (32) facing away from the first inclined surface (43) is provided with a first guide surface (48).

5. The precision bidirectional cutting tooling for narrow-face control arms according to claim 3, characterized in that, The first guide mechanism also includes a return spring (45), one end of which is fixedly installed and the other end is connected to the working part (42).

6. The precision bidirectional cutting fixture for narrow-face control arms according to claim 1, characterized in that, The upper mold also includes an upper fixing block (52), which works in conjunction with the lower support block (1) to fix the workpiece (10).

7. The precision bidirectional cutting fixture for a narrow-face control arm according to claim 6, characterized in that, The upper mold also includes a base plate (51), a compressible elastic component (53), and an upper mold housing (54) that cooperates with the base plate (51). The base plate (51) is slidably connected to the upper mold housing (54) through the compressible elastic component (53), and the upper fixing block (52) is connected to the base plate (51). The base plate (51) is provided with multiple through holes. The upper ends of the left drive (22) and the right drive (32) are connected to the upper mold housing (54), and the lower ends are respectively passed through multiple through holes.

8. The precision bidirectional cutting fixture for a narrow-face control arm according to claim 7, characterized in that, The narrow-face control arm precision bidirectional cutting tooling also includes a second guide mechanism, which includes a guide rod (61) and a guide sleeve (62), which are respectively set on the upper mold and the lower mold.

9. The precision bidirectional cutting fixture for a narrow-face control arm according to claim 1, characterized in that, The lower die has a discharge port at the position where the left cutter (21) and the right cutter (31) meet.

10. The precision bidirectional cutting fixture for a narrow-face control arm according to claim 9, characterized in that, A feeding trough (72) is provided below the feeding port.