CN222114850U

CN222114850U - Auxiliary marking clamp for thin-wall easy-deformation complex DEC lower bracket

Info

Publication number: CN222114850U
Application number: CN202420801388.4U
Authority: CN
Inventors: 李林锦; 邢立军
Original assignee: Hunan Xingtu Aerospace And Spacecraft Manufacturing Co ltd
Current assignee: Hunan Xingtu Aerospace And Spacecraft Manufacturing Co ltd
Priority date: 2024-04-17
Filing date: 2024-04-17
Publication date: 2024-12-06
Anticipated expiration: 2034-04-17

Abstract

The utility model relates to an auxiliary marking fixture for a thin-walled, easily deformable and complex DEC lower bracket, comprising a fixed block, a clamping block and a fastening assembly, the fixed block comprising a fixed connection part and a fixed working part, the upper side of the fixed working part is provided with an upper supporting surface, and an avoidance groove is also opened on the upper supporting surface, and the front side of the fixed working part is provided with a front supporting surface; the clamping block comprises a clamping connection part and a clamping working part, and the rear side of the clamping working part is provided with a clamping surface; the fastening assembly is used to connect the clamping connection part to the front side of the fixed connection part; the DEC lower bracket is placed on the fixed block when clamped in the auxiliary marking fixture, the lower end surface of the upper support plate is fitted with the upper supporting surface, and the rear sides of the two side support plates are both against the front supporting surface, the middle support plate assembly is located in the avoidance groove, the fixed working part is located between the upper ribs on the left and right sides, the fixed connection part is located between the two side support plates, the clamping surface of the clamping working part is pressed against the front side surfaces of the two side support plates, and the clamping connection part is located between the two side support plates.

Description

Auxiliary marking clamp for thin-wall easy-deformation complex DEC lower bracket

Technical Field

The utility model relates to the technical field of part clamping, in particular to an auxiliary marking clamp for a thin-wall easily-deformable complex DEC lower support part.

Background

The structure of the common DEC lower bracket is shown in fig. 1, fig. 2 and fig. 3, the DEC lower bracket 1 is in a door shape, and mainly comprises an upper support plate 11, two side support plates 12 and a middle support plate assembly 13, wherein the two side support plates 12 are respectively connected to the left side and the right side of the front edge of the upper support plate 11 and are positioned at the lower side of the upper support plate 11, an upper rib plate 14 and a flanging structure are arranged on the outer side edge of the side support plate 12, the upper rib plate 14 is connected with the left side and the right side edge of the upper support plate 11, the two side support plates 12 are provided with a certain distance, the lower ends of the side support plates 12 are bent in a Z shape (bent backwards and downwards firstly), the rear side edge of the upper support plate 11 is provided with a flanging bent upwards, the outer side edge of the side support plate 12 is also provided with a flanging bent backwards, the middle support plate assembly 13 is positioned at the lower end face of the upper support plate 11 near the middle position, and the structure of the whole DEC lower bracket 1 is relatively complex. In the actual production process, marking is needed on the upper end face of the upper support plate 11 of the DEC lower support 1, the wall thickness of the whole DEC lower support 1 is only 1.2mm, the material is 0Cr18Ni9, the rigidity of parts is poor and the parts are easy to change, meanwhile, the DEC lower support 1 is complex in structure, a plurality of welding seams exist, the effective supporting width is narrow, and two side support plates 12 are needed to be avoided, so that clamping can be influenced. The current marking method for the DEC lower bracket 1 generally adopts vice clamping, manual marking, is limited by part structure, has unstable part clamping, poor marking quality and low processing efficiency.

Disclosure of utility model

In view of the above-mentioned drawbacks of the prior art, the present utility model aims to provide an auxiliary marking fixture for thin-walled flexible complex DEC lower bracket parts, which has stable and reliable clamping, can avoid DEC lower bracket deformation, and improves marking efficiency.

The auxiliary marking clamp comprises a fixing block, a pressing block and a fastening component, wherein the fixing block comprises a fixing connecting part and a fixing working part fixed on the upper side of the fixing connecting part, an upper supporting surface is arranged on the upper side of the fixing working part, a avoidance groove is formed in the front side of the fixing working part, the pressing block is arranged on the front side of the fixing block and comprises a pressing connecting part and a pressing working part fixed on the upper side of the pressing connecting part, an upper rib plate is arranged on the upper side of the outer side of the two side supporting plates, the middle supporting plate component is arranged on the lower side of the upper supporting plate, the fixing block comprises a fixing block, a pressing block and a fastening component, the fixing working part is fixed on the upper side of the fixing connecting part, the upper supporting surface is arranged on the upper side of the fixing working part, the pressing block is arranged on the front side of the fixing block, the pressing working part is arranged on the left side of the pressing block, the pressing block is arranged on the front side of the fixing block, the pressing working part is arranged on the pressing working part, the pressing side of the pressing block is arranged on the front side of the fixing working part, the pressing block is arranged on the left side of the fixing working part, the pressing block is arranged on the middle supporting plate, the pressing block is arranged on the front side of the fixing block, the fixing working part is arranged on the fixing part, and the fixing working part is arranged on the front side of the fixing part, and the middle supporting part is arranged on the front side supporting part.

Further, a support plate through hole is formed in the upper end of the side support plate of the DEC lower support, a positioning pin is arranged on the front support surface of the fixed block, the positioning pin is located in the support plate through hole on the side support plate when the DEC lower support is placed on the fixed block, and a positioning hole for being sleeved on the positioning pin is formed in the compression working portion of the compression block.

Further, the fastening assembly comprises a connecting screw rod and a fastening nut, a connecting through hole is formed in a compression connecting portion of the compression block, a threaded hole is formed in a fixed connecting portion of the fixed block, the connecting screw rod penetrates through the connecting through hole of the compression connecting portion and is screwed into the threaded hole of the fixed connecting portion, and the fastening nut is screwed onto the connecting screw rod and abuts against the front side of the fixed connecting portion.

Further, the length of the fixed working part of the fixed block is equal to the length of the compressing working part of the compressing block.

Further, the compressing block is further provided with a positioning abutting part at the lower side of the compressing connection part, and the positioning abutting part abuts against the front end surface of the fixed connection part when the compressing surface of the compressing working part compresses the front end surfaces of the two side support plates.

Further, the device also comprises a base, and the fixed block is fixed on the base.

The auxiliary marking clamp has the following beneficial effects:

1. The auxiliary marking clamp can stably clamp and fix the DEC lower bracket, avoids the influence of a complex structure on the DEC lower bracket, is convenient for marking on the upper support plate, can effectively avoid deformation of the DEC lower bracket, and improves marking quality and working efficiency, and 2, the auxiliary marking clamp is simple in structure and convenient to use.

Drawings

Fig. 1 is a schematic view of the front side of the DEC subframe.

Fig. 2 is a schematic view of the structure of the rear side of the DEC subframe.

Fig. 3 is a rear view of the DEC subframe.

FIG. 4 is a schematic diagram of the structure of the auxiliary marking jig of the present utility model.

FIG. 5 is a schematic diagram of the structure of the auxiliary marking jig of the present utility model.

Fig. 6 is a schematic diagram illustrating the operation of the auxiliary marking clamp of the present utility model with the DEC subframe clamped.

Fig. 7 is a schematic diagram illustrating the operation of the auxiliary marking clamp of the present utility model with the DEC subframe held.

Description of the reference numerals

1 DEC lower support

11. Upper support plate

12. Side support plate

121. Support plate through hole

122. Annular plate

13. Middle support plate assembly

14. Upper rib plate

2. Fixed block

21. Fixed connection part

211. Threaded hole

22. Fixed working part

221. Upper support surface

222. Avoidance groove

223. Front support surface

3. Compression block

31. Compression connection

311. Connection through hole

32. Pressing working part

321. Compression surface

322. Positioning hole

33. Positioning abutting part

4. Fastening assembly

41. Connecting screw

42. Fastening nut

43. Annular backing plate

5. Base seat

6. Positioning pin

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

As shown in fig. 1 to 7, the present utility model provides an auxiliary marking jig for a thin-walled flexible complex DEC lower bracket 1, the DEC lower bracket 1 mainly comprises an upper support plate 11, two side support plates 12, a middle support plate assembly 13, and other structures, the two side support plates 12 are respectively connected at the left and right sides of the front side edge of the upper support plate 11 and are positioned below the upper support plate 11, the two side support plates 12 have a certain distance L1, the upper side of the outer side edges of the two side support plates 12 is also provided with an upper rib plate 14, that is, the left side edge of the left side support plate 12 is provided with an upper rib plate 14, the right side edge of the right side support plate 12 is provided with an upper rib plate 14, the upper rib plate 14 is connected with the left and right sides of the upper support plate 11, the middle support plate assembly 13 is positioned at the position where the lower side of the upper support plate 11 is close to the middle,

The auxiliary marking clamp is used for clamping the DEC lower bracket 1 for marking, referring to fig. 4 and 5, and comprises a fixed block 2, a compression block 3 and a fastening component 4, wherein the fixed block 2 comprises a fixed connection part 21 and a fixed working part 22 fixed on the upper side of the fixed connection part, the length of the fixed connection part 21 along the left-right direction is smaller than the distance L1 between the two side support plates 12, the length of the fixed working part 22 along the left-right direction is smaller than the distance L1 between the two side support plates 12 (namely the distance between the inner side edges of the two side support plates 12) and is larger than the distance L2 between the outer side edges of the two side support plates 12, the upper side of the fixed working part 22 is provided with an upper supporting surface 221, the upper supporting surface 221 is also provided with a avoidance groove 222, and the front side of the fixed working part 22 is provided with a front supporting surface 223; the compaction block 3 is arranged on the front side of the fixed block 2 and comprises a compaction connecting part 31 and a compaction working part 32 fixed on the upper side of the compaction connecting part 31, wherein the length of the fixed connecting part 21 along the left-right direction is smaller than the distance L1 between the two side support plates 12, the length of the compaction working part 32 along the left-right direction is larger than the distance L1 between the left side support plate 12 and the right side support plate 12 of the DEC lower bracket 1, the rear side of the compaction working part 32 is provided with a compaction surface 321, the fastening component 4 is used for connecting the compaction connecting part 31 on the front side of the fixed connecting part 21, the DEC lower bracket 1 is placed on the fixed block 2 when clamped in the auxiliary marking clamp, the fixed working part 22 is positioned between the left side upper rib plate 14 and the right side upper rib plate 14, the lower end surface of the upper support plate 11 is attached to the upper support surface 221 of the fixed working part 22, the rear sides of the two side support plates 12 are both attached to the front support surface 223 of the fixed block 2, the middle support plate component 13 is positioned in the avoidance groove 222, the fixed connecting part 21 is positioned between the two side support plates 12, the pressing surface 321 of the pressing work portion 32 presses against the front side surfaces of the two side plates 12.

When the auxiliary marking clamp is used, the fixed block 2 and the compression block 3 are separated, the DEC lower bracket 1 is placed on the fixed block 2, the length of the fixed working part 22 along the left and right directions is smaller than the distance L2 between the outer sides of the two side support plates 12 of the DEC lower bracket 1 and larger than the distance L1 between the two side support plates 12, so that the two side upper rib plates 14 can be avoided, when the outer sides of the side support plates 12 are provided with fillets, the left and right ends of the fixed working part 22 can also avoid fillets, and the fixed connecting part 21 can be arranged between the left and right side support plates 12 to avoid the influence of the side support plates 12 because the length of the fixed connecting part 21 along the left and right directions is smaller than the distance L1 between the two side support plates 12, and meanwhile, the middle support plate assembly 13 is positioned in the avoidance groove 222, the lower end face of the upper support plate 11 can be attached to the upper support face 221 of the fixed working part 22, and the rear sides of the side support plates 12 on the left and right sides can be abutted against the front support face 223 of the fixed working part 22; then, the fastening assembly 4 is used to connect the compression connection portion 31 to the front side of the fixed connection portion 21, and since the length of the compression connection portion 31 is smaller than the distance L1 between the two side support plates 12, the compression connection portion is arranged between the two side support plates 12, avoiding the influence of the side support plates 12, ensuring that the compression surface 321 of the compression working portion 32 can be compressed on the front side surfaces of the two side support plates 12, and stably clamping and fixing the DEC lower bracket 1 between the fixed block 2 and the compression block 3. Then, the upper side of the upper support plate 11 is marked, and the upper support plate 11 is stably supported by the fixing work portion 22, so that the upper support plate is not easy to deform on the mark, and other parts are not easy to deform. Marking is performed after the auxiliary marking clamp clamps are used for clamping, the clamping is stable and reliable, the deformation of the DEC lower bracket 1 can be effectively avoided, and the marking quality and the working efficiency are improved

In this embodiment, as shown in fig. 1, 4 and 6, as a preferred design, a support plate through hole 121 is formed at the upper end of the side support plate 12 of the DEC subframe 1, a positioning pin 6 is formed on the front support surface 223 of the fixed block 2, when the DEC subframe 1 is placed on the fixed block 2, the positioning pin 6 is located in the support plate through hole 121 on the side support plate 12, and the placement of the DEC subframe 1 on the fixed block 2 is positioned by the positioning pin 6, so that the installation is convenient. The pressing working portion 32 of the pressing block 3 is provided with a positioning hole 322 for being sleeved on the positioning pin 6 so as to avoid the positioning pin 6. In this embodiment, the rear side of the side support plate 12 is provided with a concentric annular plate 122 around the support plate through hole 121, and the side support plate 12 is abutted against the front support surface 223 of the fixed block 2 through the end surface of the annular plate 122 during clamping. Without the annular plate 122, the side support plate 12 may then rest directly against the front support surface 223.

In this embodiment, as shown in fig. 6 and 7, as a preferred design, the fastening assembly 4 includes a connection screw 41 and a fastening nut 42, a connection through hole 311 is formed on the compression connection portion 31 of the compression block 3, a threaded hole 211 is formed on the fixed connection portion 21 of the fixed block 2, and when the auxiliary marking clamp is assembled, the connection screw 41 passes through the connection through hole 311 of the compression connection portion 31 and is screwed into the threaded hole 211 of the fixed connection portion 21, and the fastening nut 42 is screwed on the connection screw 41 and abuts against the front side of the compression connection portion 31. By adopting the design, the pressing block 3 can be adjusted to be separated from or close to the fixed block 2 by adjusting the position of the fastening nut 42, and the pressing block 3 is pressed on the front side surface of the pressing connection part 31 by the fastening nut 42, so that the DEC lower bracket 1 is pressed and fixed by the pressing block 3. Wherein the connecting screw 41 extends out of the front end surface of the fixed connecting portion 21 by a proper length, which is larger than the thickness of the pressing connecting portion 31, so that when the DEC lower bracket 1 is detached, the pressing block 3 is not required to be completely detached from the connecting screw 41, and only the pressing block 3 is required to be separated from the fixed block 2 by a proper distance.

In the present embodiment, as shown in fig. 4 and 5, as a preferable design, the fixing working portion 22 of the fixing block 2 has a length equal to the length of the pressing working portion 32 of the pressing block 3, and after the pressing block 3 is fixed by the connecting screw 41 and the fastening nut 42, the left and right ends of the fixing working portion 22 are aligned with the left and right ends of the pressing working portion 32, respectively. Of course, in other embodiments, the left and right ends of the fixed working portion 22 may be misaligned with the left and right ends of the pressing working portion 32.

In this embodiment, as shown in fig. 6 and 7, as a preferred design, the pressing block 3 is further provided with a positioning abutting portion 33 at the lower side of the pressing connection portion 31, the pressing surface 321 of the pressing working portion 32 is flush with the rear side surface of the pressing connection portion 31, on the fixed block 2, the front supporting surface 223 of the fixed working portion 22 is flush with the front side surface of the fixed connection portion 21, and the height difference between the positioning abutting portion 33 and the pressing surface 321 in the front-rear direction is determined according to the thickness of the side support plates 12, so that the positioning abutting portion 33 just abuts against the front end surfaces of the fixed connection portion 21 when the pressing surface 321 of the pressing working portion 32 presses the front end surfaces of the two side support plates 12, thereby playing a limiting role and avoiding the deformation caused by excessively pressing the side support plates 12.

In this embodiment, as shown in fig. 6 and 7, as a preferred design, the device further comprises a base 5, the fixing block 2 is fixed on the base 5 through bolts, and the base 5 plays a supporting role, so that the auxiliary marking clamp can be stably placed and installed.

The auxiliary marking clamp has the following beneficial effects:

1. The auxiliary marking clamp can stably clamp and fix the DEC lower bracket 1, avoids the influence of a complex structure on the DEC lower bracket, is convenient for marking the DEC lower bracket 1 on the upper support plate 11, can effectively avoid deformation of the DEC lower bracket 1, improves marking quality and working efficiency, and has simple structure and convenient use.

In summary, the present utility model effectively overcomes the disadvantages of the prior art and has high industrial utility value.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An auxiliary marking fixture for a thin-walled, easily deformable and complex DEC lower bracket (1), used for clamping and fixing the DEC lower bracket (1), the DEC lower bracket (1) comprising an upper support plate (11), two side support plates (12) and an intermediate support plate assembly (13), the two side support plates (12) are respectively connected to the left and right sides of the front edge of the upper support plate (11) and are located below the upper support plate (11), and the two side support plates (12) have a certain spacing, and the upper sides of the outer sides of the two side support plates (12) also have upper ribs (14), and the intermediate support plate assembly (13) Located on the lower side of the upper support plate (11), it is characterized in that: the auxiliary marking fixture includes a fixed block (2), a clamping block (3) and a fastening assembly (4), the fixed block (2) includes a fixed connecting portion (21), and a fixed working portion (22) fixed on the upper side of the fixed connecting portion (21), the upper side of the fixed working portion (22) is provided with an upper supporting surface (221), and an avoidance groove (222) is also provided on the upper supporting surface (221), and the front side of the fixed working portion (22) is provided with a front supporting surface (223); the clamping block (3) is arranged on the fixed The front side of the fixed block (2) comprises a clamping connection part (31) and a clamping working part (32) fixed on the upper side of the clamping connection part (31); the rear side of the clamping working part (32) is provided with a clamping surface (321); the length of the fixed connection part (21) in the left-right direction is less than the spacing between the two side support plates (12); the fastening assembly (4) is used to connect the clamping connection part (31) to the front side of the fixed connection part (21); the DEC lower bracket (1) is placed on the fixed block (2) when clamped in the auxiliary marking fixture, and the lower end surface of the upper support plate (11) is in contact with the fixed block (2). The upper support surface (221) of the fixed working part (22) is in contact with the front support surface (223), and the rear sides of the two side support plates (12) are both in contact with the front support surface (223), the intermediate support plate assembly (13) is located in the avoidance groove (222), the fixed working part (22) is located between the upper ribs (14) on the left and right sides, the fixed connection part (21) is located between the two side support plates (12), the clamping surface (321) of the clamping working part (32) is clamped on the front side surfaces of the two side support plates (12), and the clamping connection part (31) is located between the two side support plates (12).

2. The auxiliary marking fixture according to claim 1 is characterized in that: a support plate through hole (121) is provided at the upper end of the side support plate (12) of the DEC lower bracket (1), and the fixed block (2) is provided with a positioning pin (6) on the front support surface (223); when the DEC lower bracket (1) is placed on the fixed block (2), the positioning pin (6) is located in the support plate through hole (121) on the side support plate (12), and the clamping working part (32) of the clamping block (3) is provided with a positioning hole (322) for being mounted on the positioning pin (6).

3. The auxiliary marking fixture according to claim 1 is characterized in that: the fastening assembly (4) includes a connecting screw (41) and a fastening nut (42), the clamping connection part (31) of the clamping block (3) is provided with a connecting through hole (311), and the fixed connection part (21) of the fixed block (2) is provided with a threaded hole (211), the connecting screw (41) passes through the connecting through hole (311) of the clamping connection part (31) and is screwed into the threaded hole (211) of the fixed connection part (21), and the fastening nut (42) is screwed on the connecting screw (41) and abuts against the front side of the fixed connection part (21).

4. The auxiliary marking fixture according to claim 3 is characterized in that the length of the fixed working part (22) of the fixed block (2) is equal to the length of the clamping working part (32) of the clamping block (3).

5. The auxiliary marking fixture according to claim 1 is characterized in that: the clamping block (3) is also provided with a positioning abutment (33) on the lower side of the clamping connection part (31), and when the clamping surface (321) of the clamping working part (32) is pressed against the front end surfaces of the two side support plates (12), the positioning abutment (33) abuts against the front end surface of the fixed connection part (21).

6. The auxiliary marking fixture according to claim 1 is characterized in that it also includes a base (5), and the fixed block (2) is fixed on the base (5).