Burr pressing die with fixing structure

Abstract

The utility model belongs to the technical field of burr pressing, and discloses a burr pressing die with a fixing structure, which comprises a lower die plate provided with an edge pressing groove and an upper die plate used for pressing a workpiece in the edge pressing groove to realize shape processing of the edge of the workpiece. Fixing mechanisms used for clamping workpieces are symmetrically arranged on the surface of the lower die plate. The fixing mechanism is provided with a sliding shaft, a ball, a guide sleeve, a stop sleeve, a stop bolt and an elastic piece, the sliding shaft is in sliding connection with the guide sleeve, the guide sleeve is installed through the lower die plate, the ball is located at the end of the sliding shaft and makes direct contact with a workpiece, the stop sleeve is in sliding connection with the sliding shaft, and the distance between the stop sleeve and the guide sleeve is adjusted through the stop bolt. The elastic piece is connected to the outer ring of the sliding shaft in a sleeved mode, one end of the elastic piece abuts against the guide sleeve, and the other end of the elastic piece abuts against the stop sleeve.

Description

Technical Field

[0001] The utility model belongs to the technical field of burring, and in particular relates to a burring die with a fixed structure. Background Art

[0002] Molds are indispensable tools in industrial manufacturing and can produce a variety of products. In molds, the concept of burring often appears. Burring is to reserve a certain die margin in the mold, and then press the material on the edge of the workpiece into a certain shape through the design and processing of the mold, so as to achieve the purpose of beauty and rust prevention. The principle of burring is relatively simple, that is, through the special edge design in the mold, a certain pressure is applied to the mold to press the material on the edge of the workpiece into the desired shape.

[0003] However, the existing burring die does not fix the workpiece, so when the edge of the workpiece is compressed and deformed, the workpiece itself may move slightly left and right, resulting in a poor burring processing effect. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a burr pressing die with a fixed structure.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A burr pressing die with a fixed structure comprises a lower die plate provided with a burr pressing groove, and an upper die plate used for pressing a workpiece in the burr pressing groove to realize edge shape processing of the workpiece;

[0007] The surface of the lower template is symmetrically arranged with a fixing mechanism for clamping the workpiece;

[0008] The fixing mechanism is provided with a sliding shaft, a ball, a guide sleeve, a stop sleeve, a stop bolt, and an elastic member. The sliding shaft is slidably connected to the guide sleeve, and the guide sleeve is installed through a lower template. The ball is located at the end of the sliding shaft and is in direct contact with the workpiece. The stop sleeve is slidably connected to the sliding shaft and the distance relative to the guide sleeve is adjusted by the stop bolt. The elastic member is sleeved on the outer ring of the sliding shaft, and one end of the elastic member is in contact with the guide sleeve, and the other end is in contact with the stop sleeve.

[0009] It is further defined that the sliding shaft is provided with a pull handle at one end where no ball bearing is provided. With such a structural design, the pull handle facilitates axial adjustment of the position of the sliding shaft, thereby enabling the fixing mechanism to clamp or release the workpiece.

[0010] It is further defined that the circumference of the stop sleeve is provided with an internal threaded tube for cooperating with the stop bolt, and the internal threaded tube is communicated with the inner cavity of the stop sleeve. With such a structural design, the stop bolt moves radially through the internal threaded tube until the sliding shaft generates resistance to the stop bolt. Under the action of the thread, the stop bolt generates pressure on the sliding shaft and provides a certain friction force, thereby achieving the fixation of the position of the stop sleeve on the sliding shaft.

[0011] It is further defined that the stop sleeve is provided with a retaining ring for increasing the blocking surface at one end facing the elastic member. With such a structural design, the retaining ring can increase the blocking area to avoid the situation where the elastic member cannot be interfered with.

[0012] It is further defined that the elastic member is provided with a spring and washers located at both ends of the spring for increasing the contact area. With such a structural design, the washers can increase the effective contact area with the abutting surface, making the spring more stable.

[0013] Beneficial effects of the utility model:

[0014] 1. It can effectively clamp the workpiece during the burr pressing process to avoid lateral displacement of the workpiece, which may lead to poor processing effect;

[0015] 2. The clamping force is adjustable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a burr pressing die with a fixed structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a lower mold plate in an embodiment of a burr pressing mold with a fixed structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a fixing mechanism in an embodiment of a burr pressing die with a fixing structure of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a stop sleeve in an embodiment of a burr pressing die with a fixed structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of an elastic member in an embodiment of a burr pressing die with a fixed structure of the utility model;

[0022] The main component symbols are described as follows:

[0023] 1. Lower template; 11. Edge pressing groove; 11. Edge pressing groove;

[0024] 2. Put on the template;

[0025] 3. Fixing mechanism; 31. Sliding shaft; 32. Pull handle; 33. Ball bearing; 34. Guide sleeve; 35. Stop sleeve; 351. Internal threaded tube; 352. Retaining ring; 36. Stop bolt; 37. Elastic member; 371. Spring; 372. Washer;

[0026] 4. Workpiece. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] like Figure 1-5 As shown, the utility model is a burr pressing die with a fixed structure, comprising a lower die plate 1 provided with a burr pressing groove 11, and an upper die plate 2 for pressing a workpiece 4 in the burr pressing groove 11 to realize edge shape processing of the workpiece 4;

[0029] The surface of the lower template 1 is symmetrically arranged with a fixing mechanism 3 for clamping a workpiece 4;

[0030] The fixing mechanism 3 is provided with a sliding shaft 31, a ball 33, a guide sleeve 34, a stop sleeve 35, a stop bolt 36, and an elastic member 37. The sliding shaft 31 is slidably connected to the guide sleeve 34, the guide sleeve 34 is installed through the lower template 1, the ball 33 is located at the end of the sliding shaft 31 and directly contacts the workpiece 4, the stop sleeve 35 is slidably connected to the sliding shaft 31 and the distance relative to the guide sleeve 34 is adjusted by the stop bolt 36, and the elastic member 37 is sleeved on the outer ring of the sliding shaft 31, one end of the elastic member 37 is in contact with the guide sleeve 34, and the other end is in contact with the stop sleeve 35. In fact, other structural shapes can also be considered according to specific circumstances.

[0031] In this embodiment:

[0032] After the workpiece 4 is subjected to the force from top to bottom by the upper template 2, the edge of the workpiece 4 is limited by the groove shape of the edge pressing groove 11, thereby realizing the processing of the edge of the workpiece 4;

[0033] In the process of pressing the burr of the workpiece 4, the left and right sides of the workpiece 4 are clamped by the fixing mechanism 3 to prevent the workpiece 4 from deflecting. Specifically, the outer end of the elastic member 37 is abutted by the guide sleeve 34, and the inner end of the elastic member 37 applies elastic force to the stop sleeve 35. The stop sleeve 35 drives the sliding shaft 31 to hit the side of the workpiece 4. The ball 33 at the end of the sliding shaft 31 is in direct contact with the side of the workpiece 4, reducing the obstruction to the longitudinal movement of the workpiece 4. The two sides of the workpiece 4 are abutted by a sliding shaft 31 at the same time to achieve clamping.

[0034] In order to achieve a better clamping effect, the clamping force is adjustable. The adjustment of the clamping force is mainly achieved by changing the compression amount of the elastic member 37. Since the guide sleeve 34 is fixed on the surface of the lower template 1, it is only necessary to change the axial position of the stop sleeve 35. The stop sleeve 35 moves along the axial direction of the sliding shaft 31 and fixes its own position through the stop bolt 36.

[0035] Preferably, the sliding shaft 31 is provided with a handle 32 at one end where the ball bearing 33 is not provided. With this structural design, the handle 32 facilitates the axial adjustment of the position of the sliding shaft 31, thereby achieving the clamping or loosening of the workpiece 4 by the fixing mechanism 3. In fact, other structural shapes for adjusting the position of the sliding shaft 31 can also be considered according to specific circumstances.

[0036] Preferably, the circumference of the stop sleeve 35 is provided with an internal threaded tube 351 for cooperating with the stop bolt 36, and the internal threaded tube 351 is communicated with the inner cavity of the stop sleeve 35. With such a structural design, the stop bolt 36 moves radially through the internal threaded tube 351 until the sliding shaft 31 resists the stop bolt 36. The stop bolt 36 generates pressure on the sliding shaft 31 under the action of the thread and provides a certain friction force, thereby achieving the fixing of the position of the stop sleeve 35 on the sliding shaft 31. In fact, other structural shapes of the stop sleeve 35 can also be considered according to specific circumstances.

[0037] Preferably, the stop sleeve 35 is provided with a stop ring 352 for increasing the blocking surface at one end facing the elastic member 37. With such a structural design, the stop ring 352 can increase the blocking area and avoid the situation where it cannot contact the elastic member 37. In fact, other structural shapes of the stop sleeve 35 can also be considered according to specific circumstances.

[0038] Preferably, the elastic member 37 is provided with a spring 371 and washers 372 located at both ends of the spring 371 for increasing the contact area. With such a structural design, the washers 372 can increase the effective contact area with the abutting surface, making the spring 371 more stable. In fact, other structural shapes of the elastic member 37 can also be considered according to specific circumstances.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A burr pressing die with a fixed structure, characterized in that: It comprises a lower template (1) provided with a margin pressing groove (11), and an upper template (2) used for pressing a workpiece (4) in the margin pressing groove (11) to achieve edge shape processing of the workpiece (4); The surface of the lower template (1) is symmetrically arranged with a fixing mechanism (3) for clamping a workpiece (4); The fixing mechanism (3) is provided with a sliding shaft (31), a ball (33), a guide sleeve (34), a stop sleeve (35), a stop bolt (36), and an elastic member (37); the sliding shaft (31) is slidably connected to the guide sleeve (34); the guide sleeve (34) is installed through a lower template (1); the ball (33) is located at the end of the sliding shaft (31) and is in direct contact with the workpiece (4); the stop sleeve (35) is slidably connected to the sliding shaft (31) and the distance relative to the guide sleeve (34) is adjusted by the stop bolt (36); the elastic member (37) is sleeved on the outer ring of the sliding shaft (31); one end of the elastic member (37) contacts the guide sleeve (34) and the other end contacts the stop sleeve (35).

2. The burr pressing die with a fixed structure according to claim 1, characterized in that: The sliding shaft (31) is provided with a pull handle (32) at the end where the ball bearing (33) is not provided.

3. The burr pressing die with a fixed structure according to claim 2, characterized in that: An internal threaded tube (351) for cooperating with the stop bolt (36) is provided on the circumference of the stop sleeve (35), and the internal threaded tube (351) is communicated with the inner cavity of the stop sleeve (35).

4. The burr pressing die with a fixed structure according to claim 2, characterized in that: The stop sleeve (35) is provided with a stop ring (352) at one end facing the elastic member (37) for increasing the blocking surface.

5. The burr pressing die with a fixed structure according to claim 1, characterized in that: The elastic member (37) is provided with a spring (371) and washers (372) located at both ends of the spring (371) for increasing the contact area.

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