A concentric product piece machining tool and method

Abstract

The application discloses a concentric product piece machining tool and method, which comprises a bottom plate, a positioning plate, positioning pins, a first drilling template, a second drilling template, a first drill sleeve, a second drill sleeve, a fixing plate and a pressing push rod. The positioning plate is vertically installed on the bottom plate, and a plurality of positioning pins are arranged on the positioning plate. The first drilling template and the second drilling template are installed on the bottom plate, and are arranged in parallel and at intervals and parallel to the bottom plate. The first drilling template and the second drilling template are respectively embedded with the first drill sleeve and the second drill sleeve, and the first drill sleeve and the second drill sleeve are coaxially arranged. The axes of the first drill sleeve and the second drill sleeve are parallel to the positioning plate. The projection of the axes of the first drill sleeve and the second drill sleeve on the positioning plate is consistent with the distance between the positioning pins. The fixing plate is fixedly installed in the gap between the second drilling template and the bottom plate. The pressing push rod is slidingly arranged in the sliding hole in the fixing plate. The application can process the required product and ensure the product processing quality.

Description

Technical Field

[0001] This invention relates to the field of machining equipment technology, and in particular to a tooling and method for machining concentric product parts. Background Technology

[0002] Existing U-shaped automotive leaf spring front brackets include welded U-shaped components and bottom bent components, such as... Figure 1 As shown, the base plate of the U-shaped part is welded to the surface of the bent part. Each of the two side plates of the U-shaped part has a through hole. The base plate of the U-shaped part is welded to the bottom bent part to form the base plate of the leaf spring front bracket. The base plate of the leaf spring front bracket has multiple positioning holes. When manufacturing the leaf spring front bracket, the following requirements need to be met: (1) The through holes on the two side plates of the U-shaped part need to be coaxial; (2) The axis of the two through holes is parallel to the base plate of the leaf spring front bracket; (3) The distance between the projection of the axis of the two through holes on the base plate of the leaf spring front bracket and each positioning hole must meet the product requirements. However, in the existing manufacturing method of the leaf spring front bracket, the through holes on the two side plates of the U-shaped part are first processed, and then the U-shaped part is welded to the bottom bent part. Due to the presence of welding stress, welding deviations will occur. After welding, it cannot be guaranteed that the two through holes will remain coaxial, nor can it be guaranteed that the axes of the two through holes will be parallel to the base plate of the leaf spring front bracket. The projection of the axes of the two through holes on the base plate of the leaf spring front bracket and the distance between each positioning hole cannot be guaranteed to meet the product requirements. As a result, the product quality is poor and does not meet the product requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling and method for processing concentric product parts, so as to solve the problems existing in the prior art, and to process products that meet the requirements and ensure product processing quality.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a machining fixture for concentric product parts, including a base plate, a positioning plate, positioning pins, a first drilling template, a second drilling template, a first drilling sleeve, a second drilling sleeve, a fixing plate, and a clamping push rod. The positioning plate is vertically mounted on the base plate, and the positioning plate is provided with a plurality of positioning pins for engaging with positioning holes on the base plate of the concentric product part to position the concentric product part. The first drilling template and the second drilling template are mounted on the base plate and located on one side of the positioning plate. The first drilling template and the second drilling template are arranged parallel to each other and parallel to the base plate. The second drilling template is close to the base plate and forms a shape with respect to the base plate. A gap is formed, and the first drill sleeve and the second drill sleeve are respectively embedded on the first drill template and the second drill template. The first drill sleeve and the second drill sleeve are coaxially arranged, and the axis of the first drill sleeve and the second drill sleeve are parallel to the positioning plate. The projection of the axis of the first drill sleeve and the second drill sleeve on the positioning plate and the distance between each positioning pin are consistent with the product requirements. The fixing plate is fixedly installed in the gap between the second drill template and the base plate. The pressing push rod is slidably arranged in the sliding hole in the fixing plate. By pushing the pressing push rod, the base plate of the concentric product part is pressed onto the positioning plate.

[0006] Preferably, each end of the fixing plate is provided with a sliding hole, and a clamping push rod is slidably connected in each sliding hole. The two clamping push rods are respectively located on both sides of the second drill sleeve, and the ends of the two clamping push rods away from the positioning plate are fixedly connected by a connecting plate.

[0007] Preferably, the sliding hole is a square hole, and the pressing push rod is a square push rod that mates with the square hole.

[0008] Preferably, one end of the second drill sleeve near the first drill template protrudes from the second drill template. A support block corresponding to the second drill sleeve is fixedly provided on the base plate. The support block has a through hole coaxial with the second drill sleeve. The distance between the end face of the second drill sleeve near the first drill template and the end face of the support block near the second drill template is consistent with the product requirements. When the base plate of the concentric product is positioned on the positioning plate by the positioning pin, the inner side of one side plate of the concentric product abuts against the end face of the second drill sleeve near the first drill template, and the outer side of the other side plate abuts against the end face of the support block near the second drill template.

[0009] Preferably, the two ends of the first drilling template and the second drilling template are respectively installed on two side plates, and the two side plates are fixedly installed on the base plate.

[0010] Preferably, a reinforcing rib is provided between the positioning plate and the base plate.

[0011] Preferably, the fixing plate is fixedly installed on the second drilling template.

[0012] The present invention also provides a method for processing concentric product parts, based on the above-described tooling for processing concentric product parts, including the following steps:

[0013] S1: Place the concentric product part on the positioning plate and position it using the positioning pin, so that one side plate of the concentric product part is located between the first drilling template and the second drilling template, and the other side plate is located between the second drilling template and the bottom plate;

[0014] S2: The base plate of the concentric product part is pressed onto the positioning plate by the pressing push rod;

[0015] S3: The drill bit advances and is positioned by the first drill sleeve and the second drill sleeve to drill holes on the two side plates of the concentric product.

[0016] The present invention achieves the following technical effects compared to the prior art:

[0017] This invention provides a machining fixture and method for concentric product parts. Multiple positioning pins are set on a positioning plate for positioning and installing the concentric product parts. A first drill sleeve and a second drill sleeve are respectively embedded in a first drilling template and a second drilling template. The first and second drill sleeves are coaxially arranged, and their axes are parallel to the positioning plate. The projection of the axes of the first and second drill sleeves onto the positioning plate and the distance between each positioning pin are consistent with the product requirements. Therefore, after the concentric product parts are positioned and installed on the positioning plate and pressed by a clamping push rod, the drilling process is positioned by the first and second drill sleeves. This ensures that the through holes drilled on both sides of the concentric product parts are coaxial, and the axes of the two drilled through holes are parallel to the positioning plate, thus ensuring parallelism to the base plate of the concentric product parts. Simultaneously, it ensures that the projection of the axes of the two through holes onto the base plate of the concentric product parts and the distance between each positioning hole meet the product requirements, thereby obtaining a product that meets the requirements and ensuring product processing quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the concentric product parts to be processed according to the present invention;

[0020] Figure 2A three-dimensional structural schematic diagram of the tooling for processing concentric product parts provided by the present invention;

[0021] Figure 3 A schematic diagram of the main structure of the concentric product part processing fixture provided by the present invention;

[0022] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA.

[0023] In the diagram: 1-base plate, 2-positioning plate, 3-positioning pin, 4-first drilling template, 5-second drilling template, 6-first drilling sleeve, 7-second drilling sleeve, 8-fixing plate, 9-pressing push rod, 10-concentric product part, 11-positioning hole, 12-connecting plate, 13-support block, 14-through hole, 15-side plate, 16-reinforcing rib, 17-telescopic push rod, 18-push rod connecting plate. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The purpose of this invention is to provide a tooling and method for processing concentric product parts, so as to solve the problems existing in the prior art, and to process products that meet the requirements and ensure product processing quality.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-4As shown, this embodiment provides a machining fixture and method for concentric product parts, including a base plate 1, a positioning plate 2, positioning pins 3, a first drilling template 4, a second drilling template 5, a first drilling sleeve 6, a second drilling sleeve 7, a fixing plate 8, and a clamping push rod 9. The positioning plate 2 is vertically mounted on the base plate 1. The positioning plate 2 is provided with a plurality of positioning pins 3, which are used to cooperate with the positioning holes 11 on the base plate of the concentric product part 10 to position the concentric product part 10. The first drilling template 4 and the second drilling template 5 are mounted on the base plate 1 and located on one side of the positioning plate 2. The first drilling template 4 and the second drilling template 5 are arranged parallel to each other and parallel to the base plate 1. A gap is formed between the first drill template 4 and the second drill template 5, and a first drill sleeve 6 and a second drill sleeve 7 are respectively embedded on the first drill template 4 and the second drill template 5. The first drill sleeve 6 and the second drill sleeve 7 are coaxially arranged, and the axes of the first drill sleeve 6 and the second drill sleeve 7 are parallel to the positioning plate 2. The projection of the axes of the first drill sleeve 6 and the second drill sleeve 7 on the positioning plate 2 and the distance between each positioning pin 3 are consistent with the product requirements. A fixing plate 8 is fixedly installed in the gap between the second drill template 5 and the base plate 1. A pressing push rod 9 is slidably arranged in the sliding hole in the fixing plate 8. By pushing the pressing push rod 9, the base plate of the concentric product part 10 is pressed onto the positioning plate 2.

[0028] Multiple positioning pins 3 are set on the positioning plate 2 for positioning and installing the concentric product part 10. The first drill sleeve 6 and the second drill sleeve 7 are respectively embedded in the first drill template 4 and the second drill template 5. The first drill sleeve 6 and the second drill sleeve 7 are coaxially arranged, and the axes of the first drill sleeve 6 and the second drill sleeve 7 are parallel to the positioning plate 2. The projection of the axes of the first drill sleeve 6 and the second drill sleeve 7 on the positioning plate 2 and the distance between each positioning pin 3 are consistent with the product requirements. Thus, after the concentric product part 10 is positioned and installed on the positioning plate 2 and pressed by the pressing push rod 9, the drilling process of the drill bit is positioned by the first drill sleeve 6 and the second drill sleeve 7, so that the through holes drilled on both sides of the concentric product part 10 can be coaxial, and the axes of the two drilled through holes are parallel to the positioning plate 2, which also ensures that they are parallel to the bottom plate of the concentric product part 10. At the same time, it also ensures that the projection of the axes of the two through holes on the bottom plate of the concentric product part 10 and the distance between each positioning hole 11 meet the product requirements, thereby processing a product that meets the requirements and ensuring the product processing quality.

[0029] In this embodiment, each end of the fixing plate 8 has a sliding hole, and a clamping push rod 9 is slidably connected in each sliding hole. The two clamping push rods 9 are located on both sides of the second drill sleeve 7, and the ends of the two clamping push rods 9 away from the positioning plate 2 are fixedly connected by the connecting plate 12. The two clamping push rods 9 are respectively set on both sides of the second drill sleeve 7 so that the two clamping push rods 9 will not interfere with the drilling process. The ends of the two clamping push rods 9 away from the positioning plate 2 are fixedly connected by the connecting plate 12 to ensure that the two clamping push rods 9 can move synchronously to simultaneously clamp both sides of the bottom plate of the concentric product part 10. Among them, a telescopic push rod 17 is installed on the bottom plate 1. The telescopic end of the telescopic push rod 17 is fixedly connected to the connecting plate 12 through the push rod connecting plate 18. The telescopic push rod 17 drives the two clamping push rods 9 to clamp or loosen the concentric product part 10 by telescopic extension and retraction.

[0030] In this embodiment, the sliding hole is a square hole, and the pressing push rod 9 is a square push rod that matches the square hole. While guiding the pressing push rod 9 through the square hole, it can prevent the pressing push rod 9 from rotating.

[0031] In this embodiment, the end of the second drill sleeve 7 near the first drill template 4 protrudes from the second drill template 5. A support block 13 corresponding to the second drill sleeve 7 is fixed on the base plate 1. The support block 13 has a through hole 14 coaxial with the second drill sleeve 7. The distance between the end face of the second drill sleeve 7 near the first drill template 4 and the end face of the support block 13 near the second drill template 5 is consistent with the product requirements. When the base plate of the concentric product part 10 is positioned on the positioning plate 2 by the positioning pin 3, the inner side of one side plate of the concentric product part 10 abuts against the end face of the second drill sleeve 7 near the first drill template 4, and the outer side of the other side plate abuts against the end face of the support block 13 near the second drill template 5. When the drill bit drills, the second drill sleeve 7 and the support block 13 can support the two side plates of the concentric product part 10 respectively, so that the two side plates of the concentric product part 10 do not deform, ensuring the product processing quality.

[0032] In this embodiment, the two ends of the first drilling template 4 and the second drilling template 5 are respectively installed on the two side plates 15, and the two side plates 15 are fixed on the base plate 1.

[0033] In this embodiment, a reinforcing rib 16 is provided between the positioning plate 2 and the base plate 1 to ensure the connection strength and stability between the positioning plate 2 and the base plate 1, and to prevent the positioning plate 2 from tilting and causing processing misalignment.

[0034] In this embodiment, the fixing plate 8 is fixedly installed on the second drilling template 5.

[0035] A method for machining concentric product parts, based on the above-described machining fixture for concentric product parts, includes the following steps:

[0036] S1: Place the concentric product part 10 on the positioning plate 2 and position it using the positioning pin 3, so that one side plate of the concentric product part 10 is located between the first drilling template 4 and the second drilling template 5, and the other side plate is located between the second drilling template 5 and the bottom plate 1.

[0037] S2: Press the base plate of the concentric product part 10 onto the positioning plate 2 by pressing the push rod 9;

[0038] S3: The drill bit drills in and is positioned by the first drill sleeve 6 and the second drill sleeve 7, drilling holes on the two side plates of the concentric product part 10.

[0039] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A tooling fixture for processing concentric product parts, characterized in that: The system includes a base plate, a positioning plate, positioning pins, a first drilling template, a second drilling template, a first drill sleeve, a second drill sleeve, a fixing plate, and a clamping push rod. The positioning plate is vertically mounted on the base plate. The positioning plate has multiple positioning pins for engaging with positioning holes on the base plate of the concentric product to position the concentric product. The first and second drilling templates are mounted on the base plate and located on one side of the positioning plate. The first and second drilling templates are parallel and spaced apart, and parallel to the base plate. The second drilling template is close to the base plate and forms a gap with it. The first drill sleeve and the second drill sleeve are respectively embedded on the template and the second drill template. The first drill sleeve and the second drill sleeve are coaxially arranged. The axis of the first drill sleeve and the second drill sleeve is parallel to the positioning plate. The projection of the axis of the first drill sleeve and the second drill sleeve on the positioning plate and the distance between each positioning pin are consistent with the product requirements. The fixing plate is fixedly installed in the gap between the second drill template and the base plate. The pressing push rod is slidably arranged in the sliding hole in the fixing plate. By pushing the pressing push rod, the base plate of the concentric product part is pressed onto the positioning plate.

2. The tooling for processing concentric product parts according to claim 1, characterized in that: Each end of the fixed plate is provided with a sliding hole, and a clamping push rod is slidably connected in each sliding hole. The two clamping push rods are located on both sides of the second drill sleeve, and the ends of the two clamping push rods away from the positioning plate are fixedly connected by a connecting plate.

3. The tooling for processing concentric product parts according to claim 1, characterized in that: The sliding hole is a square hole, and the pressing push rod is a square push rod that mates with the square hole.

4. The tooling for processing concentric product parts according to claim 1, characterized in that: One end of the second drill bushing near the first drill template protrudes from the second drill template. A support block corresponding to the second drill bushing is fixedly provided on the base plate. The support block has a through hole coaxial with the second drill bushing. The distance between the end face of the second drill bushing near the first drill template and the end face of the support block near the second drill template is consistent with the product requirements. When the base plate of the concentric product is positioned on the positioning plate by the positioning pin, the inner side of one side plate of the concentric product abuts against the end face of the second drill bushing near the first drill template, and the outer side of the other side plate abuts against the end face of the support block near the second drill template.

5. The tooling for processing concentric product parts according to claim 1, characterized in that: The first and second drilling templates are respectively mounted on two side plates at both ends, and the two side plates are fixedly mounted on the base plate.

6. The tooling for processing concentric product parts according to claim 1, characterized in that: A reinforcing rib is provided between the positioning plate and the base plate.

7. The tooling for processing concentric product parts according to claim 1, characterized in that: The fixing plate is fixedly installed on the second drilling template.

8. A method for processing concentric product parts, characterized in that: The tooling for processing concentric product parts according to any one of claims 1 to 7 includes the following steps: S1: Place the concentric product part on the positioning plate and position it using the positioning pin, so that one side plate of the concentric product part is located between the first drilling template and the second drilling template, and the other side plate is located between the second drilling template and the bottom plate; S2: The base plate of the concentric product part is pressed onto the positioning plate by the pressing push rod; S3: The drill bit advances and is positioned by the first drill sleeve and the second drill sleeve to drill holes on the two side plates of the concentric product.

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