Bending positioning structure for sheet metal part machining

Abstract

The utility model discloses a bending positioning structure for machining sheet metal parts, and belongs to the technical field of sheet metal machining, and the bending positioning structure is characterized by comprising a machine body, and a machining cavity is formed in the front side of the machine body. According to the automatic positioning scheme, the positioning efficiency can be remarkably improved, the time and energy of operators are saved, the automatic positioning device is particularly suitable for the production scene where the sheet metal parts of different sizes need to be frequently positioned, and meanwhile, the automatic positioning device is convenient to operate. By means of cooperative work of the contact sensor and the controller, the moving distance of the clamping block and the clamping force on the sheet metal part can be accurately controlled, positioning errors caused by manual operation differences are effectively reduced, it is ensured that the accuracy of positioning is consistent every time, then the stability of product quality is improved, and the requirements for large-scale production and fine machining are met.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a bending positioning structure for sheet metal processing. Background Technology

[0002] Bending is a key process in sheet metal processing, and precise bending positioning is essential to ensuring the dimensional accuracy and quality of sheet metal parts.

[0003] When existing CNC bending machines bend workpieces, most workers hold the workpiece by hand and place it between the extrusion blocks before the CNC bending machine performs the bending operation. The manual fixing may cause the workpiece to shift during the bending process, affecting the bending accuracy. This not only wastes workpiece material, but also poses safety hazards during manual operation.

[0004] The existing patent (publication number: CN214022731U) discloses a positioning structure for a CNC bending machine for sheet metal processing. This utility model makes the installation and disassembly of the slope protection device more convenient by setting a disassembly and reassembly device, achieving the effect of saving time and effort. By setting an adjustment device, the device can be adjusted according to different construction conditions, achieving the effect of convenient adjustment and saving effort.

[0005] To address the aforementioned issues, existing patents offer solutions. However, these patents rely on manually rotating a throttle to move and clamp the positioning blocks, which requires manual operation. In actual sheet metal processing, when frequently positioning sheet metal parts of different sizes, manual operation not only consumes a significant amount of time and effort from operators, affecting overall processing efficiency, but also results in inconsistent positioning accuracy due to human error. This leads to fluctuations in product quality, hindering large-scale production and precision processing. Furthermore, the lack of a bending distance positioning structure makes it difficult for operators to precisely control the bending distance, easily causing the dimensions of the processed sheet metal parts to fail to meet requirements, thereby increasing the scrap rate.

[0006] To address this, a bending positioning structure for sheet metal processing is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a bending positioning structure for sheet metal processing, which can solve the problem in the above-mentioned patents that the positioning of sheet metal parts relies on manually rotating a handle to drive a series of structures to move and clamp the positioning blocks. In actual sheet metal processing production, when frequently positioning sheet metal parts of different sizes, manual operation not only consumes a lot of time and energy of operators and affects the overall processing efficiency, but also, due to differences in human operation, the accuracy of each positioning is difficult to be completely consistent, which will lead to fluctuations in product quality and is not conducive to large-scale production and fine processing. On the other hand, the lack of a bending distance positioning structure makes it difficult for operators to accurately control the bending distance, which can easily cause the dimensions of the processed sheet metal parts to not meet the requirements, thereby increasing the scrap rate.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bending and positioning structure for sheet metal processing, comprising a machine body, a processing cavity opened on the front side of the machine body, a controller bolted to the top of the front side of the machine body, a lower extrusion block embedded in the bottom side of the processing cavity, an upper extrusion block provided on the top side of the processing cavity, a positioning mechanism provided on the front side of the processing cavity, and a distance fixing mechanism provided on the rear side of the processing cavity;

[0009] The positioning mechanism includes a slide groove formed on the bottom side of the machining cavity. A motor is located on the right side of the machine body and is electrically connected to a controller. The output end of the motor passes through the right side of the machine body and extends into the interior of the slide groove. A bidirectional lead screw is fixedly connected to the output end of the motor. Slider blocks are threaded to both sides of the surface of the bidirectional lead screw. The sliders are slidably connected inside the slide groove. A clamping block is fixedly connected to the top of the slider. A contact sensor is embedded in the inner side of the clamping block and is electrically connected to the controller. A buffer pad is adhered to the inner side of the clamping block and is located outside the contact sensor. A pressing structure is provided on the top of the clamping block.

[0010] Preferably, the distance-fixing mechanism includes a groove formed on the bottom side inside the processing cavity, and an electric push rod is disposed inside the groove, the electric push rod being electrically connected to the controller.

[0011] Preferably, a sliding block is slidably connected inside the groove, and the rear side of the sliding block is bolted to the telescopic end of the electric push rod.

[0012] Preferably, a spacer plate is bolted to the top of the moving block, and a retaining pad is adhered to the front side of the spacer plate.

[0013] Preferably, the pressing structure includes a bracket bolted to the top of the clamping block, an electric telescopic rod bolted to the inner side of the top of the bracket, the electric telescopic rod being electrically connected to a controller, and the telescopic end of the electric telescopic rod penetrating through the top of the bracket.

[0014] Preferably, the telescopic end of the electric telescopic rod is bolted with a pressure plate, which is located at the top of the inner side of the clamping block.

[0015] Preferably, a storage cavity is provided on the front side of the body, and partitions are fixedly connected to both sides inside the storage cavity.

[0016] Preferably, protective doors are rotatably connected to both sides of the front side of the machine body, and the protective doors are located on the front side of the storage cavity.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a positioning mechanism, which drives a bidirectional lead screw via a motor to move the sliders and clamping blocks on both sides, thereby achieving the clamping and positioning of sheet metal parts placed in the processing cavity, replacing the traditional manual operation method. This automated positioning solution can significantly improve positioning efficiency and save operators' time and effort. It is especially suitable for production scenarios that require frequent positioning of sheet metal parts of different sizes. At the same time, with the help of the collaborative work of contact sensors and controllers, the moving distance of the clamping blocks and the clamping force on the sheet metal parts can be precisely controlled, effectively reducing positioning errors caused by human operation differences, ensuring consistent positioning accuracy each time, thereby improving the stability of product quality and meeting the needs of large-scale production and fine processing.

[0019] 2. By setting a distance fixing mechanism, when the sheet metal part is placed in the processing cavity for bending, the operator can operate the distance fixing mechanism through the controller to stop and limit the position of the sheet metal part on the lower extrusion block, so as to realize the adjustable control of the bending distance, effectively avoid the problem of sheet metal part size deviation caused by improper bending distance control, reduce scrap rate and improve production efficiency. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the bending and positioning structure for sheet metal processing according to this utility model;

[0021] Figure 2 This is a structural diagram of the fuselage of this utility model;

[0022] Figure 3 This is a structural diagram of the positioning mechanism of this utility model;

[0023] Figure 4 This is a structural diagram of the downward pressing structure of this utility model;

[0024] Figure 5 This is a structural diagram of the distance-fixing mechanism of this utility model;

[0025] Figure 6 This is a structural diagram of the storage cavity of this utility model.

[0026] In the diagram: 1. Machine body; 2. Processing cavity; 3. Controller; 4. Lower extrusion block; 5. Upper extrusion block; 6. Positioning mechanism; 61. Slide groove; 62. Motor; 63. Bidirectional lead screw; 64. Slider; 65. Clamping block; 66. Contact sensor; 67. Buffer pad; 68. Lower pressing structure; 681. Bracket; 682. Electric telescopic rod; 683. Pressure plate; 7. Distance fixing mechanism; 71. Groove; 72. Electric push rod; 73. Moving block; 74. Distance plate; 75. Baffle; 8. Storage cavity; 9. Partition; 10. Protective door. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] A bending and positioning structure for sheet metal processing includes a machine body 1, a processing cavity 2 is provided on the front side of the machine body 1, a controller 3 is bolted to the top of the front side of the machine body 1, a lower extrusion block 4 is embedded in the bottom side of the processing cavity 2, an upper extrusion block 5 is provided on the top side of the processing cavity 2, a positioning mechanism 6 is provided on the front side of the processing cavity 2, and a distance fixing mechanism 7 is provided on the rear side of the processing cavity 2.

[0030] The positioning mechanism 6 includes a slide groove 61 formed on the bottom side of the machining cavity 2. A motor 62 is provided on the right side of the machine body 1. The motor 62 is electrically connected to the controller 3. The output end of the motor 62 passes through the right side of the machine body 1 and extends into the interior of the slide groove 61. A bidirectional lead screw 63 is fixedly connected to the output end of the motor 62. Slider 64 is threadedly connected to both sides of the surface of the bidirectional lead screw 63. The slider 64 is slidably connected inside the slide groove 61. A clamping block 65 is fixedly connected to the top of the slider 64. A contact sensor 66 is embedded in the inner side of the clamping block 65. The contact sensor 66 is electrically connected to the controller 3. A buffer pad 67 is adhered to the inner side of the clamping block 65. The buffer pad 67 is located outside the contact sensor 66. A pressing structure 68 is provided on the top of the clamping block 65.

[0031] In this embodiment: By setting the positioning mechanism 6 and the distance fixing mechanism 7, when the sheet metal part needs to be processed, the operator first places it on the lower extrusion block 4 in the processing cavity 2. Before clamping and positioning, the operator can operate the distance fixing mechanism 7 through the controller 3 according to the processing requirements. The distance fixing mechanism 7 blocks and limits the position of the sheet metal part on the lower extrusion block 4, determines the bending start position of the sheet metal part, and realizes the adjustable control of the bending distance. Then, the controller 3 starts the motor 62, which drives the bidirectional lead screw 63 to rotate. Since the thread directions on both sides of the surface of the bidirectional lead screw 63 are opposite, it will drive the sliders 64 on both sides to move in opposite directions in the slide groove 61, thereby causing the clamping block 6 at the top of the slider 64 to move in opposite directions. 5. The clamping block 65 moves closer to the sheet metal part until the buffer pad 67 inside the clamping block 65 contacts the sheet metal part. After the contact sensor 66 senses the contact signal, it transmits the signal to the controller 3. The controller 3 controls the motor 62 to stop rotating, completing the lateral positioning of the sheet metal part. At the same time, the pressing structure 68 on the top of the clamping block 65 will press down and fix the sheet metal part, further enhancing the positioning effect. Then, the upper extrusion block 5 moves downward and cooperates with the lower extrusion block 4 to perform bending processing on the sheet metal part. Since the clamping block 65 ensures the accurate positioning of the sheet metal part in the lateral position and the distance fixing mechanism 7 controls the bending distance, it can effectively avoid the problem of sheet metal part size deviation caused by inaccurate positioning and improper control of bending distance, thus improving product quality and production efficiency.

[0032] Specifically, such as Figure 5 As shown, the distance fixing mechanism 7 includes a groove 71 formed on the bottom side inside the processing cavity 2. An electric push rod 72 is disposed inside the groove 71 and is electrically connected to the controller 3.

[0033] Specifically, such as Figure 5 As shown, a sliding block 73 is slidably connected inside the groove 71, and the rear side of the sliding block 73 is bolted to the telescopic end of the electric push rod 72.

[0034] Specifically, such as Figure 5 As shown, a spacer plate 74 is bolted to the top of the moving block 73, and a baffle 75 is glued to the front side of the spacer plate 74.

[0035] In this embodiment: By setting a distance fixing mechanism 7, when the operator operates the controller 3 before clamping and positioning the sheet metal part according to the processing requirements, the electric push rod 72, which is electrically connected to the controller 3, is activated. The telescopic end of the electric push rod 72 pushes the moving block 73 to slide in the groove 71. Since the top of the moving block 73 is bolted with a distance fixing plate 74, the movement of the moving block 73 will drive the distance fixing plate 74 to move synchronously. The baffle 75 on the front side of the distance fixing plate 74 contacts the sheet metal part, thereby blocking and limiting the position of the sheet metal part on the lower extrusion block 4. By precisely controlling the telescopic length of the electric push rod 72 through the controller 3, the position of the distance fixing plate 74 can be precisely adjusted, thereby determining the bending start position of the sheet metal part and realizing the adjustable control of the bending distance. This process ensures that the bending distance of the sheet metal part is accurately set before bending processing, which provides a guarantee for the subsequent processing of sheet metal parts with accurate dimensions, effectively avoids the problem of dimensional deviation caused by improper bending distance control, and greatly improves product quality and production efficiency.

[0036] Specifically, such as Figure 4 As shown, the pressing structure 68 includes a bracket 681 bolted to the top of the clamping block 65. An electric telescopic rod 682 is bolted to the inner side of the top of the bracket 681. The electric telescopic rod 682 is electrically connected to the controller 3. The telescopic end of the electric telescopic rod 682 passes through the top of the bracket 681.

[0037] Specifically, such as Figure 4 As shown, the telescopic end of the electric telescopic rod 682 is bolted with a pressure plate 683, which is located at the top of the inner side of the clamping block 65.

[0038] In this embodiment: by setting the pressing structure 68, when the clamping block 65 moves under the drive of the motor 62 to contact the sheet metal and complete the lateral positioning, the controller 3 will control the electric telescopic rod 682 to work. The telescopic end of the electric telescopic rod 682, which is electrically connected to the controller 3, extends downward under the guidance of the bracket 681. Since the telescopic end of the electric telescopic rod 682 is bolted with the pressure plate 683, the pressure plate 683 will move downward as the electric telescopic rod 682 extends until the pressure plate 683 presses the sheet metal. In this way, the pressure plate 683 applies downward pressure to the sheet metal from the top inside the clamping block 65, which cooperates with the lateral clamping force of the clamping block 65 to further enhance the positioning effect of the sheet metal. Even during the bending process, when the sheet metal is subjected to the force of the upper extrusion block 5 and the lower extrusion block 4, it can be ensured to be stably fixed and will not be displaced, thus ensuring the accuracy of the bending process and improving the product qualification rate.

[0039] Specifically, such as Figure 5 As shown, a storage cavity 8 is provided on the front side of the body 1, and partitions 9 are fixedly connected to both sides inside the storage cavity 8.

[0040] Specifically, such as Figure 5As shown, protective doors 10 are rotatably connected to both sides of the front side of the fuselage 1, and the protective doors 10 are located in front of the storage cavity 8.

[0041] In this embodiment: by setting up a storage cavity 8, partitions 9 and a protective door 10, the storage cavity 8 provides operators with a space to store tools, spare parts or sheet metal parts to be processed. The protective door 10 on the front side of the machine body 1 can prevent debris from entering the storage cavity 8 and protect the items inside the storage cavity 8. The partitions 9 on both sides divide the storage cavity 8 into different areas, which facilitates the classification and storage of tools and parts, improves the orderliness of item storage, makes it easier for operators to quickly find the required items, saves time in searching for items, and improves work efficiency.

[0042] Working Principle: In the process of using the bending positioning structure for sheet metal processing, the operator first places the sheet metal part on the lower extrusion block 4 in the processing cavity 2 according to the processing requirements. At this time, the electric push rod 72 is activated by the controller 3, and its telescopic end pushes the sliding block 73 in the groove 71 to slide. The sliding block 73 drives the top spacer plate 74 to move synchronously. The baffle 75 on the front side of the spacer plate 74 contacts the sheet metal part, accurately determining the bending start position of the sheet metal part and realizing the adjustable control of the bending distance. After the spacer is fixed, the operator starts the motor 62 by the controller 3. The output end of the motor 62 drives the bidirectional lead screw 63 to rotate. Since the threads on both sides of the bidirectional lead screw 63 are opposite, it drives the two sliders 64 to move towards each other in the slide groove 61, so that the clamping block... When clamping block 65 approaches the sheet metal part, and the buffer pad 67 on the inner side of clamping block 65 contacts the sheet metal part, contact sensor 66 transmits a signal to controller 3. Controller 3 controls motor 62 to stop rotating, completing the lateral positioning of the sheet metal part. Immediately afterwards, controller 3 controls electric telescopic rod 682 to work. Electric telescopic rod 682 extends under the guidance of bracket 681, driving pressure plate 683 to press the sheet metal part, enhancing the positioning effect. Finally, controller 3 controls upper extrusion block 5 to move downward, cooperating with lower extrusion block 4 to bend the sheet metal part. Because the position and bending distance of the sheet metal part are precisely controlled, the dimensional deviation problem caused by inaccurate positioning and improper bending distance control is effectively avoided, ensuring processing accuracy and improving product quality and production efficiency.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bending and positioning structure for sheet metal processing, comprising a machine body (1), characterized in that: The front side of the fuselage (1) is provided with a machining cavity (2), the top of the front side of the fuselage (1) is bolted with a controller (3), the bottom side inside the machining cavity (2) is embedded with a lower extrusion block (4), the top side inside the machining cavity (2) is provided with an upper extrusion block (5), the front side inside the machining cavity (2) is provided with a positioning mechanism (6), and the rear side inside the machining cavity (2) is provided with a distance mechanism (7). The positioning mechanism (6) comprises a chute (61) opened in the bottom side inside the machining cavity (2), a motor (62) is arranged on the right side of the fuselage (1), the motor (62) is electrically connected with the controller (3), the output end of the motor (62) penetrates through the right side of the fuselage (1) and extends to the inside of the chute (61), the output end of the motor (62) is fixedly connected with a bidirectional screw rod (63), the both sides of the surface of the bidirectional screw rod (63) are threadedly connected with sliding blocks (64), the sliding blocks (64) are slidingly connected in the inside of the chute (61), the top of the sliding block (64) is fixedly connected with a clamping block (65), the inner side of the clamping block (65) is embedded with a contact sensor (66), the contact sensor (66) is electrically connected with the controller (3), the inner side of the clamping block (65) is bonded with a buffer pad (67), the buffer pad (67) is located on the outer side of the contact sensor (66), and the top of the clamping block (65) is provided with a pressing structure (68).

2. The bending and positioning structure for sheet metal parts according to claim 1, characterized in that: The distance mechanism (7) comprises a groove (71) opened in the bottom side inside the machining cavity (2), and the inside of the groove (71) is provided with an electric push rod (72).

3. The bending and positioning structure for sheet metal parts according to claim 2, characterized in that: The inside of the groove (71) is slidingly connected with a moving block (73), and the rear side of the moving block (73) is bolted with the telescopic end of the electric push rod (72).

4. The bending and positioning structure for sheet metal parts according to claim 3, characterized in that: The top of the moving block (73) is bolted with a distance plate (74), and the front side of the distance plate (74) is bonded with a stop pad (75).

5. The bending and positioning structure for sheet metal parts according to claim 1, characterized in that: The pressing structure (68) comprises a support (681) bolted on the top of the clamping block (65), the inner side of the top of the support (681) is bolted with an electric telescopic rod (682), the electric telescopic rod (682) is electrically connected with the controller (3), and the telescopic end of the electric telescopic rod (682) penetrates through the top of the support (681).

6. The bending and positioning structure for sheet metal parts according to claim 5, characterized in that: The telescopic end of the electric telescopic rod (682) is bolted with a pressing plate (683), and the pressing plate (683) is located on the top of the inner side of the clamping block (65).

7. The bending and positioning structure for sheet metal parts according to claim 1, characterized in that: The front side of the fuselage (1) is provided with a storage cavity (8), and the two sides inside the storage cavity (8) are fixedly connected with partition plates (9).

8. The bending and positioning structure for sheet metal parts according to claim 7, characterized in that: The front sides of the fuselage (1) are rotatably connected with protective doors (10), and the protective doors (10) are located on the front side of the storage cavity (8).

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