Die for detecting spin riveting torque

Abstract

The utility model discloses a die for detecting spin riveting torque, which comprises a die holder connected to a workbench in a sliding manner; a positioning mechanism; a spin riveting machine; the spin riveting mechanism is provided with a riveting head corresponding to the groove body and a torque sensor in a driving manner; a touch switch electrically connected with the first driving mechanism is arranged at the bottom of the inner side of the first auxiliary part; and a second auxiliary member. According to the utility model, through the sliding design of the die holder, the spin riveting machine and the workbench, when spin riveting detection is carried out, pre-operation and pressing of the riveting head are firstly carried out, accurate alignment of the die holder and the spin riveting mechanism is carried out through the auxiliary member, so that the groove body and the riveting head are accurately aligned, and response of the driving mechanism is carried out, so that the fixing plate and the die holder are in butt joint, and the die holder is fixed; therefore, the accuracy of the torque value measured during the subsequent formal spin riveting operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary riveting detection, in particular to a mold for rotary riveting torque detection. Background Art

[0002] Rivet connection is a common way to connect metal parts, which uses the stretching of rivets to achieve the purpose of connection. This connection method has the advantages of simple structure, easy operation, and convenient installation. Therefore, it has been widely used in aviation, automobile, machinery manufacturing and other fields. Whether the riveting parameters are appropriate, such as the length of the rivet. If it is too long, the diameter after riveting will be too large, and it will crack when the material elongation rate is exceeded. If it is too short, the riveting is not tight enough and the mold will also scratch the parts. Therefore, it is generally necessary to use a rotary riveting detection device to detect and determine the riveting effect of the workpiece based on the torque value. However, when the common rotary riveting detection device performs riveting simulation and effect detection during the rotary riveting operation, the workpiece and the rotary riveting machine are not accurately aligned, which can easily lead to the torque value obtained by the detection being inaccurate and the detection effect being poor. Utility Model Content

[0003] The utility model aims to provide a mold for detecting torque of a rotary riveting machine in order to solve the problem that when a common rotary riveting detection device performs riveting simulation and effect detection in a rotary riveting operation, the workpiece and the rotary riveting machine are not accurately aligned, which easily leads to inaccurate torque values ​​and poor detection effects.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solution: a mold for detecting torque of a rotary riveting machine, comprising:

[0005] The die base is slidably connected to the workbench, with a slot body set on the top to position the workpiece to be riveted;

[0006] A positioning mechanism, which is connected to a fixed plate through a horizontal telescopic drive of a first driving mechanism, and the fixed plate is located on a side of the mold base;

[0007] The rotary riveting machine is connected to a rotary riveting mechanism through a lifting drive of a second driving mechanism, and a riveting head and a torque sensor corresponding to the trough body are driven and arranged on the rotary riveting mechanism;

[0008] The first auxiliary member is a hollow structure, which can be detachably plugged into the slot body, and a touch switch electrically connected to the first driving mechanism is provided at the inner bottom of the first auxiliary member;

[0009] The second auxiliary component is elastically and slidably sleeved outside the rotary riveting mechanism, and a guiding inclined surface is arranged on the surface opposite to the first auxiliary component.

[0010] As a further description of the above technical solution:

[0011] A plurality of guide rails are arranged on the workbench, and the bottom of the mold base is slidably connected to the guide rails.

[0012] As a further description of the above technical solution:

[0013] The fixing plate is an L-shaped structure, and both end surfaces thereof abut against the mold base and are fixed and locked by bolts.

[0014] As a further description of the above technical solution:

[0015] A cover plate for positioning the workpiece is detachably provided on the die base, a through hole corresponding to the riveting head is provided in the center of the cover plate, a collar sleeved on the workpiece is provided at the bottom, and a concave edge for engaging and positioning with the fixing plate is provided on the outer side of the collar.

[0016] As a further description of the above technical solution:

[0017] The first auxiliary component includes a positioning sleeve inserted into the slot body and a guide sleeve guided and abutted against the opposite surface of the second auxiliary component.

[0018] As a further description of the above technical solution:

[0019] The inner side of the second auxiliary member is connected to the upper end of the riveting mechanism through an elastic member.

[0020] In summary, due to the adoption of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] Beneficial effects:

[0022] This rotary riveting torque detection die is used to solve the problem that the torque value obtained by the detection is not accurate enough and the detection effect is not good due to the inaccurate alignment of the workpiece and the rotary riveting machine during riveting simulation and effect detection of rotary riveting operation. The sliding design of the die base, rotary riveting machine and workbench is carried out. During the rotary riveting detection, a pre-operation is first performed, the riveting head is pressed down, and the die base and the rotary riveting mechanism are accurately aligned through auxiliary parts, so that the groove body and the riveting head are accurately aligned, and the driving mechanism responds, so that the fixed plate and the die base are docked, and the die base is fixed, thereby ensuring the accuracy of the torque value measured during the subsequent formal rotary riveting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A rivet torque detection die in use during pre-operation and die base positioning Figure 1 .

[0025] Figure 2 A rotary riveting torque detection die is used in the rotary riveting process. Figure 2 .

[0026] Figure 3 The figure is a schematic diagram of the structure of a cover plate in a mold for detecting torque of a rotary riveting machine.

[0027] Legend:

[0028] 1. Workbench; 2. Die base; 21. Slot body; 3. Guide rail; 4. Positioning mechanism; 41. Fixing plate; 42. First driving mechanism; 5. Riveting machine; 51. Second driving mechanism; 6. Riveting mechanism; 7. First auxiliary part; 71. Positioning kit; 72. Guide kit; 8. Second auxiliary part; 81. Elastic part; 9. Cover plate; 91. Through hole; 92. Ring; 93. Concave edge; 10. Workpiece. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] See also Figure 1-3 The utility model provides a technical solution: a mold for detecting torque of a rotary riveting machine, comprising:

[0032] The die base 2 is slidably connected to the workbench 1, and a groove 21 is provided on the top to position the workpiece 10 to be riveted;

[0033] The positioning mechanism 4 is connected to a fixed plate 41 through a first driving mechanism 42 for horizontal telescopic driving, and the fixed plate 41 is located on the side of the mold base 2;

[0034] The rotary riveting machine 5 is connected to the rotary riveting mechanism 6 through the lifting and lowering drive of the second driving mechanism 51. The rotary riveting mechanism 6 is provided with a riveting head and a torque sensor corresponding to the trough body 21. In this embodiment, the driving modes adopted by the two driving mechanisms are one or more of a cylinder, a hydraulic cylinder, and a motor.

[0035] The first auxiliary member 7 is a hollow structure, which can be detachably plugged into the groove body 21, and a touch switch electrically connected to the first driving mechanism 42 is arranged at the inner bottom thereof; a pressure sensor is arranged on the first driving mechanism 42, and when the fixing plate 41 abuts against the mold base 2, the pressure sensor senses the feedback pressure, and the first driving mechanism 42 stops running;

[0036] The second auxiliary member 8 is elastically and slidably sleeved outside the riveting mechanism 6 , and a guiding inclined surface is arranged on the surface opposite to the first auxiliary member 7 .

[0037] The present rotary riveting torque detection die is used to solve the problem that the torque value obtained by the detection is not accurate enough and the detection effect is not good due to the inaccurate alignment of the workpiece and the rotary riveting machine during riveting simulation and effect detection of the rotary riveting operation. The sliding design of the die base 2, the rotary riveting machine 5 and the workbench 1 is carried out. During the rotary riveting detection, a pre-operation is first performed, the riveting head is pressed down, and the die base 2 and the rotary riveting mechanism 6 are accurately aligned through auxiliary parts, so that the groove body 21 and the riveting head are accurately aligned, and the driving mechanism responds, so that the fixed plate 41 is docked with the die base 2, and the die base 2 is fixed, thereby ensuring the accuracy of the torque value measured during the subsequent formal rotary riveting operation.

[0038] A plurality of guide rails 3 are arranged on the workbench 1, and the bottom of the die base 2 is slidably connected to the guide rails 3, so as to ensure that the die base 2 slides on the workbench 1 and the die base 2 and the riveting mechanism 6 slide and dock smoothly, thereby improving the detection efficiency.

[0039] The fixing plate 41 is an L-shaped structure, and its two end surfaces abut against the die base 2 and are fixed and locked by bolts, so as to improve the positioning stability of the die base 2 after the pre-operation and alignment of the die base 2 and the riveting mechanism 6.

[0040] A cover plate 9 for positioning the workpiece 10 is detachably provided on the die base 2, a through hole 91 corresponding to the riveting head is provided in the center of the cover plate 9, a collar 92 which is sleeved on the workpiece 10 is provided at the bottom, and a concave edge 93 which is engaged with the fixing plate 41 for positioning is provided on the outer side of the collar 92, so as to ensure the accurate and stable positioning of the workpiece 10 and the die base 2, and to perform positioning reinforcement of the die base 2 and the positioning mechanism 4.

[0041] The first auxiliary part 7 includes a positioning kit 71 plugged into the groove body 21 and a guide kit 72 guided and abutted against the opposite surface of the second auxiliary part 8, thereby ensuring accurate positioning between the die base 2 and the first auxiliary part 7, and between the first auxiliary part 7 and the second auxiliary part 8, thereby achieving accurate alignment of the die base 2, the workpiece 10 and the riveting head, and ensuring accurate results of the rotary riveting detection.

[0042] The inner side of the second auxiliary member 8 is connected to the upper end of the riveting mechanism 6 via an elastic member 81 .

[0043] The working principle of the rotary riveting torque detection mold of the present embodiment includes: when in use, first assembling the first auxiliary member 7 and the mold base 2 and electrically connecting with the first driving mechanism 41, such as Figure 1 , the rotary riveting mechanism 6 is moved downward by the second driving mechanism 51. After the two auxiliary parts are in contact, the die base 2 is guided by the inclined surface to slide on the guide rail 3, and the die base 2 and the rotary riveting mechanism 6 are aligned. When the two auxiliary parts are completely assembled, the docking is initially completed, and the riveting head continues to move downward to dock with the positioning kit 71, and realizes the refined movement of the die base 2, so that the rotary riveting mechanism 6, the die base 2, and the workpiece 10 are completely aligned. At this time, the riveting head presses the touch switch in the positioning kit 71, so that the first driving mechanism 42 drives the fixing plate 41 to abut against the die base 2 and cooperate with the bolts to fix the die base 2; thereafter, the workpiece 10 can be placed on the die base 2, and the cover plate 9 is assembled to position the workpiece 10, as shown in FIG. Figure 2 , the riveting operation can be carried out, and the riveting simulation of the workpiece 10 is carried out through the torque sensor to detect the riveting quality. During the downward pressing of the riveting mechanism 6, the elastic member 81 cooperates with the pressure elastic upward movement of the second auxiliary member 8 to avoid interference with the operation of the device, and when the riveting mechanism 6 moves upward, the reverse elastic force can be used to improve the separation efficiency from the die base 2.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold for detecting torque of a rotary riveting machine, characterized in that: include: The die base is slidably connected to the workbench, with a slot body set on the top to position the workpiece to be riveted; A positioning mechanism, which is connected to a fixed plate through a horizontal telescopic drive of a first driving mechanism, and the fixed plate is located on a side of the mold base; The rotary riveting machine is connected to a rotary riveting mechanism through a lifting drive of a second driving mechanism, and a riveting head and a torque sensor corresponding to the trough body are driven and arranged on the rotary riveting mechanism; The first auxiliary member is a hollow structure, which can be detachably plugged into the slot body, and a touch switch electrically connected to the first driving mechanism is provided at the inner bottom of the first auxiliary member; The second auxiliary component is elastically and slidably sleeved outside the rotary riveting mechanism, and a guiding inclined surface is arranged on the surface opposite to the first auxiliary component.

2. A rotary riveting torque detection die according to claim 1, characterized in that: A plurality of guide rails are arranged on the workbench, and the bottom of the mold base is slidably connected to the guide rails.

3. A rotary riveting torque detection die according to claim 1, characterized in that: The fixing plate is an L-shaped structure, and both end surfaces thereof abut against the mold base and are fixed and locked by bolts.

4. A rotary riveting torque detection die according to claim 1, characterized in that: A cover plate for positioning the workpiece is detachably provided on the die base, a through hole corresponding to the riveting head is provided in the center of the cover plate, a collar sleeved on the workpiece is provided at the bottom, and a concave edge for engaging and positioning with the fixing plate is provided on the outer side of the collar.

5. The mold for detecting torque of a rotary riveting machine according to claim 1, characterized in that: The first auxiliary component includes a positioning sleeve inserted into the slot body and a guide sleeve guided and abutted against the opposite surface of the second auxiliary component.

6. The rotary riveting torque detection die according to claim 1, characterized in that: The inner side of the second auxiliary member is connected to the upper end of the riveting mechanism through an elastic member.

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