Circle center positioning device for stamping edge rolling die

Abstract

The utility model relates to the technical field of stamping dies, in particular to a circle center positioning device for a stamping edge rolling die, which comprises a base, a fixed seat is arranged on the base, and a guide block is arranged at one end of the fixed seat. The first driving block moves downwards, the inclined face of the first driving block makes contact with the first rolling bearing, the sliding block is driven to slide in the sliding groove, the straight face of the first driving block makes contact with the first rolling bearing and continues to move downwards, a core rod is inserted into a workpiece, and then the workpiece is shaped through the first shaping block and the second shaping block. And after stamping and shaping are completed, the inclined face of the other side of the first driving block makes contact with a second rolling bearing, the first driving block moves upwards, the second rolling bearing drives the sliding block to move in the opposite direction, the core rod is made to be separated from the workpiece, and therefore the workpiece can be machined. Therefore, the cylindricity and the concentricity of the workpiece can meet the convex surface requirements, manual positioning errors are reduced, and the production efficiency and the production quality are improved.

Description

Technical Field

[0001] This utility model relates to a center positioning device for a stamping and rolling die, belonging to the field of stamping die technology. Background Technology

[0002] Stamping and rolling dies are key process equipment in the metal processing field. They mainly consist of an upper die and a lower die. The upper die includes components such as a punch, while the lower die has a die and related positioning structures. During operation, a flat metal material is placed in a specific position on the die. The upper die moves downward, and the punch applies pressure to the material, causing it to gradually undergo plastic deformation under the cooperation of the die, rolling it into a circular or near-circular shape along a preset curve or contour. This die is suitable for various metal materials, such as steel and aluminum, and is widely used in industries such as automotive parts manufacturing, pipe processing, and hardware product manufacturing.

[0003] In the stamping and rolling process, traditional positioning methods often rely on the operator's experience and simple measuring tools. Workers may only use a steel ruler to roughly measure the position of the workpiece. This method is difficult to meet the needs of high-precision production. Moreover, as the product precision requirements continue to increase, the errors caused by traditional positioning methods can easily lead to defects such as roundness deviation and dimensional instability in the rolled product, which in turn affects the product's assembly performance and service life. In addition, in mass production, due to inaccurate positioning, frequent adjustments and corrections are required, which seriously reduces production efficiency and product quality.

[0004] Therefore, it is urgent to improve the center positioning device for stamping and rolling dies to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a center positioning device for a stamping and rolling die. A first driving block moves downwards, its inclined surface contacting a first rolling bearing, causing a slider to slide inside a groove. The straight surface of the first driving block contacts the first rolling bearing, and as it continues to move downwards, a mandrel is inserted into the workpiece. Then, a first shaping block and a second shaping block perform shaping operations on the workpiece, effectively ensuring that the cylindricity and concentricity of the workpiece meet the standards during stamping and rolling. After stamping and shaping, the other inclined surface of the first driving block contacts a second rolling bearing, and the first driving block moves upwards. The second rolling bearing drives the slider to move in the opposite direction, causing the mandrel to detach from the workpiece. This achieves the cylindricity and concentricity of the workpiece meeting the drawing requirements, reducing manual positioning errors and improving production efficiency and quality.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A center positioning device for a stamping and rolling die includes a base, a fixed seat fixedly mounted on the base, a guide block fixedly mounted at one end of the fixed seat, and a sliding groove formed on the fixed seat. A slider is slidably arranged inside the sliding groove, a first rolling bearing and a second rolling bearing are fixedly mounted inside the slider, a first driving block is arranged between the first rolling bearing and the second rolling bearing, and a fixed block is fixedly mounted on the slider. A mandrel is fixedly mounted on the fixed block, and a second driving block and a third driving block are respectively arranged on both sides of the fixed seat. A first shaping block and a second shaping block are arranged above the second driving block and the third driving block.

[0008] Preferably, the guide block has a guide hole, and the mandrel corresponds to the guide hole.

[0009] Preferably, the fixed base has a positioning groove at one end near the guide block, and a workpiece is placed on the positioning groove.

[0010] Preferably, a safety spring is installed on the base, and the other end of the safety spring is connected to the slider.

[0011] Preferably, the second drive block is connected to the first shaping block via a first return hook, and the third drive block is connected to the second shaping block via a second return hook.

[0012] Preferably, both the first shaping block and the second shaping block have fixing holes, and the first shaping block and the second shaping block are connected by a return nitrogen spring.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. This utility model involves a first driving block moving downwards, its inclined surface contacting a first rolling bearing, causing a slider to slide inside a groove. The straight surface of the first driving block contacts the first rolling bearing, and as it continues to move downwards, the mandrel is inserted into the workpiece. Then, the first and second shaping blocks perform shaping operations on the workpiece, effectively ensuring that the cylindricity and concentricity of the workpiece meet the standards during stamping and rolling. After the stamping and shaping are completed, the other inclined surface of the first driving block contacts the second rolling bearing, and the first driving block moves upwards. The second rolling bearing drives the slider to move in the opposite direction, causing the mandrel to detach from the workpiece. This achieves the cylindricity and concentricity of the workpiece meeting the requirements for a convex surface, reducing manual positioning errors and improving production efficiency and quality. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 Schematic diagram of the overall structure provided by this utility model Figure 1 ;

[0017] Figure 2 This is a partial structural working diagram of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is a partial exploded view of the structure provided by this utility model;

[0020] Figure 5 Schematic diagram of the overall structure provided by this utility model Figure 2 .

[0021] In the diagram, 1 is the base; 2 is the fixed seat; 3 is the guide block; 4 is the slide groove; 5 is the slider; 6 is the first rolling bearing; 7 is the second rolling bearing; 8 is the first drive block; 9 is the fixed block; 10 is the mandrel; 11 is the second drive block; 12 is the third drive block; 13 is the first shaping block; 14 is the second shaping block; 15 is the guide hole; 16 is the positioning groove; 17 is the workpiece; 18 is the safety spring; 19 is the first return hook; 20 is the second return hook; 21 is the fixed hole; and 22 is the return nitrogen spring. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] like Figure 1 - Figure 5As shown, the stamping and rolling die center positioning device provided in this embodiment includes a base 1, a fixed seat 2 fixedly installed on the base 1, a guide block 3 fixedly installed at one end of the fixed seat 2, and a sliding groove 4 opened on the fixed seat 2. A slider 5 is slidably arranged inside the sliding groove 4. A first rolling bearing 6 and a second rolling bearing 7 are fixedly installed inside the slider 5. A first driving block 8 is arranged between the first rolling bearing 6 and the second rolling bearing 7, and a fixed block 9 is fixedly installed on the slider 5. A mandrel 10 is fixedly installed on the fixed block 9. A second driving block 11 and a third driving block 12 are respectively arranged on both sides of the fixed seat 2. A first shaping block 13 and a second shaping block 14 are arranged above the second driving block 11 and the third driving block 12. A guide hole 15 is opened on the guide block 3. The mandrel 10 corresponds to the guide hole 15. A positioning groove 16 is opened at one end of the fixed seat 2 near the guide block 3. A workpiece 17 is arranged in the positioning groove 16. When the workpiece 17 is placed in the positioning groove 16, the press descends, causing the first driving block 8 to move towards the guide block 3. The first drive block 8 moves downwards, its inclined surface contacting the first rolling bearing 6. The first rolling bearing 6 drives the slider 5 to slide towards the guide block 3 inside the slide groove 4. The punch press continues to descend, and the straight surface of the first drive block 8 contacts the first rolling bearing 6. The first drive block 8 continues to move downwards, causing the mandrel 10 to be inserted into and pass through the guide hole 15, and then into the workpiece 17. The first rolling bearing 6 and the slider 5 stop moving. Then, the first shaping block 13 and the second shaping block 14 perform shaping operations on the workpiece 17, which can effectively ensure that the cylindricity and concentricity of the workpiece 17 meet the standards during stamping and rolling, greatly improving the forming accuracy and quality stability of the workpiece 17. After the stamping and shaping is completed, the punch press rises, causing the inclined surface of the other side of the first drive block 8 to contact the second rolling bearing 7. The first drive block 8 continues to move upwards, and the second rolling bearing 7 drives the slider 5 to move in the opposite direction, causing the mandrel 10 to detach from the workpiece 17. This can achieve the cylindricity and concentricity of the workpiece 17 to meet the drawing requirements, reduce manual positioning errors, and improve production efficiency and production quality.

[0024] Furthermore, such as Figure 1 - Figure 5 As shown, a safety spring 18 is installed on the base 1. The other end of the safety spring 18 is connected to the slider 5. When the slider 5 is subjected to abnormal external force impact or sudden change in movement speed, the safety spring 18 can absorb energy through elastic deformation, buffer the movement of the slider 5, prevent the slider 5 from being damaged by hard collision, and thus extend its service life.

[0025] Furthermore, such as Figure 1 - Figure 5As shown, the second drive block 11 is connected to the first shaping block 13 via the first return hook 19, and the third drive block 12 is connected to the second shaping block 14 via the second return hook 20. Fixing holes 21 are provided on both the first shaping block 13 and the second shaping block 14, and they are connected by a return nitrogen spring 22. When the second drive block 11 and the third drive block 12 return, the first return hook 19 and the second return hook 20 can respectively pull the first shaping block 13 and the second shaping block 14 back to their original positions, thus ensuring their timely return to their original positions for the next operation. The return nitrogen spring 22 between the first shaping block 13 and the second shaping block 14 can assist in their separation after the shaping action is completed, avoiding excessive compression of the workpiece 17. Furthermore, during the stamping and shaping process, it can absorb impact, balance the force, maintain the stability and working accuracy of the shaping block, thereby improving the quality of the workpiece 17 processed by the stamping and rolling die.

[0026] like Figure 1 - Figure 5 As shown, the principle of the center positioning device for the stamping and rolling die provided in this embodiment is as follows:

[0027] The workpiece 17 is placed in the positioning groove 16, and the punch press descends, causing the first drive block 8 to move downwards and its inclined surface to contact the first rolling bearing 6. The first rolling bearing 6 drives the slider 5 to slide towards the guide block 3 inside the slide groove 4. The punch press continues to descend, and the straight surface of the first drive block 8 contacts the first rolling bearing 6. The first drive block 8 continues to move downwards, causing the mandrel 10 to be inserted and pass through the guide hole 15, and then inserted into the workpiece 17. The first rolling bearing 6 and the slider 5 stop moving, and the first shaping block 13 and the second shaping block 14 move downwards synchronously with the first drive block 8 until they contact... As the second drive block 11 and the third drive block 12 descend, the first shaping block 13 and the second shaping block 14 move toward the center until they close together, completing the shaping process. After the stamping and shaping are completed, the punch press rises, and the first shaping block 13 and the second shaping block 14 move outward. The inclined surface of the other side of the first drive block 8 contacts the second rolling bearing 7. The first drive block 8 continues to move upward, and the second rolling bearing 7 drives the slider 5 to move in the opposite direction, causing the mandrel 10 to detach from the workpiece 17. This allows the cylindricity and concentricity of the workpiece 17 to meet the requirements of the drawing.

[0028] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0030] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A center positioning device for a stamping and rolling die, comprising a base (1), characterized in that: A fixed seat (2) is fixedly installed on the base (1). A guide block (3) is fixedly installed at one end of the fixed seat (2). A sliding groove (4) is provided on the fixed seat (2). A slider (5) is slidably arranged inside the sliding groove (4). A first rolling bearing (6) and a second rolling bearing (7) are fixedly installed inside the slider (5). A first driving block (8) is arranged between the first rolling bearing (6) and the second rolling bearing (7). A fixed block (9) is fixedly installed on the slider (5). A mandrel (10) is fixedly installed on the fixed block (9). A second driving block (11) and a third driving block (12) are respectively arranged on both sides of the fixed seat (2). A first shaping block (13) and a second shaping block (14) are arranged above the second driving block (11) and the third driving block (12).

2. The center positioning device for a stamping and rolling die according to claim 1, characterized in that: The guide block (3) has a guide hole (15), and the core rod (10) corresponds to the guide hole (15).

3. The center positioning device for a stamping and rolling die according to claim 1, characterized in that: The fixed base (2) has a positioning groove (16) at one end near the guide block (3), and a workpiece (17) is placed on the positioning groove (16).

4. The center positioning device for a stamping and rolling die according to claim 1, characterized in that: A safety spring (18) is installed on the base (1), and the other end of the safety spring (18) is connected to the slider (5).

5. The center positioning device for a stamping and rolling die according to claim 1, characterized in that: The second drive block (11) is connected to the first shaping block (13) via the first return hook (19), and the third drive block (12) is connected to the second shaping block (14) via the second return hook (20).

6. The center positioning device for a stamping and rolling die according to claim 5, characterized in that: Fixing holes (21) are provided on both the first shaping block (13) and the second shaping block (14), and the first shaping block (13) and the second shaping block (14) are connected by a return nitrogen spring (22).

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