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CN-224216287-U - Projection welding element detection device

CN224216287UCN 224216287 UCN224216287 UCN 224216287UCN-224216287-U

Abstract

The application relates to a projection welding element detection device which comprises a first driving piece, a second driving piece, a connecting piece and a detection head, wherein the connecting piece comprises a first end and a second end which are oppositely arranged, the first driving piece is connected with the first end, the second driving piece and the detection head are respectively positioned on the upper side and the lower side of the second end, the second driving piece passes through the second end and is connected with the detection head, the first driving piece acts on the first end to drive the second driving piece and the detection head to move along the vertical direction at the same time, and the second driving piece acts on the detection head to drive the detection head to rotate in situ. According to the application, the first driving piece drives the detection head to move downwards to detect the welding strength of the projection welding element, the second driving piece drives the detection head to rotate in situ to detect whether the detection head has threads or not and can clean welding slag which is not firmly adhered, and the projection welding element on the finished product to be detected can be comprehensively detected only by loading the finished product to be detected once through the cooperative work of the first driving piece and the second driving piece, so that the timeliness and convenience of the detection of the projection welding element are greatly improved.

Inventors

  • TIAN ZHONGYANG
  • SHEN JI
  • WANG BIN
  • LIN TAO
  • ZHU ZHENYOU

Assignees

  • 江苏北人智能制造科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250509

Claims (10)

  1. 1. The projection welding element detection device is characterized by comprising a first driving piece (1), a second driving piece (2), a connecting piece (4) and a detection head (3): The connecting piece (4) comprises a first end and a second end which are oppositely arranged, the first driving piece (1) is connected to the first end, the second driving piece (2) and the detection head (3) are respectively positioned on the upper side and the lower side of the second end, and the second driving piece (2) penetrates through the second end to be connected with the detection head (3); The first driving piece (1) acts on the first end and drives the second driving piece (2) and the detection head (3) to move along the vertical direction through the connecting piece (4); The second driving piece (2) is used for driving the detection head (3) to rotate in situ.
  2. 2. Projection welding element detection apparatus according to claim 1, characterized in that the projection welding element detection apparatus further comprises a sensor for sensing the amount of displacement driven by the first driving member (1).
  3. 3. Projection welding element detection device according to claim 1, characterized in that it further comprises a support (5) and a guiding structure (7), said guiding structure (7) comprising guiding grooves (71) and guiding blocks (72) cooperating with each other, one of said guiding grooves (71) and said guiding blocks (72) being connected to said connecting piece (4) and the other to said support (5).
  4. 4. A projection welding component inspection apparatus according to claim 3, characterized in that said guide groove (71) comprises a first guide groove (711), said first guide groove (711) concave shape fitting with said guide block (72) convex shape.
  5. 5. A projection welding component inspection apparatus according to claim 3, further comprising a limiting member (8), wherein the limiting member (8) comprises a first limiting member (81) and a second limiting member (82), and the first limiting member (81) and the second limiting member (82) are arranged in a vertical direction and are disposed on the support (5) to limit a maximum driving range of the first driving member (1).
  6. 6. Projection welding element detection device according to claim 1, characterized in that the first driving member (1) is a standard cylinder and the second driving member (2) is a pneumatic motor.
  7. 7. Projection welding element detection device according to claim 1, characterized in that the detection head (3) is connected with the second drive member (2) by means of a floating connector (23).
  8. 8. A projection welding component inspection apparatus according to claim 3, characterized in that the projection welding component inspection apparatus further comprises a base (6), said support (5) being fixed to said base (6), said first driving member (1) being fixed to said support (5).
  9. 9. The projection welding component inspection device according to claim 8, further comprising a carrying structure disposed on the base (6), wherein the carrying structure comprises a first carrying portion (61) and a second carrying portion (62) having a receiving cavity, the receiving cavity is located below the inspection head (3), and the first carrying portion (61) supports the projection welding component (30) to be pushed off and enter the receiving cavity during the inspection of the finished product (20) to be inspected.
  10. 10. Projection welding element detection device according to claim 1, characterized in that the detection head (3) is a tap for detecting a projection welding nut or a sleeve for detecting a projection welding bolt.

Description

Projection welding element detection device Technical Field The present application relates to a detecting device, and more particularly, to a projection welding device. Background Projection welding elements such as projection welding nuts and projection welding bolts are mainly used for welding stamping parts of low carbon steel and low alloy steel. In the automotive parts industry, projection welding has the advantage that multiple welding spots can be welded simultaneously in one welding cycle. Not only is the productivity high, but also no shunt effect is generated. The welding spots can be arranged at narrow portions without being limited by the spot pitch. Because the current density is concentrated in the salient points and the current density is high, the welding can be performed by using smaller current, and a smaller nugget can be reliably formed. Along with the development of intelligent manufacturing technology, in the manufacturing fields of automobiles, ships, aerospace and the like, the automation and the intelligence level are higher and higher, the equipment requirements in an automatic production line are higher and higher, and in the automatic production line of sheet metal parts, projection welding elements are used as a frequently used connecting technology. In the spot welding production, because the intensity is insufficient when spot welding is performed due to factors such as air pressure, current and the like, the projection welding element is in cold welding and false welding, so that the abnormal defect that the projection welding element falls off when a product is assembled is caused, the sheet metal part cannot be assembled or is assembled unreliably later, a plurality of reworking or repairing phenomena are caused, the working efficiency of a production line is reduced, and the production cost is increased. The main reason for this problem is that there is no automatic inspection device for projection welding components, and the failed projection welding components in the finished product to be inspected are found in time. Disclosure of utility model In view of the above problems, the present application provides a projection welding element detection device, which includes a first driving member, a second driving member, a connecting member and a detection head: The connecting piece comprises a first end and a second end which are oppositely arranged, the first driving piece is connected to the first end, the second driving piece and the detection head are respectively positioned on the upper side and the lower side of the second end, and the second driving piece passes through the second end to be connected with the detection head; The first driving piece acts on the first end and drives the second driving piece and the detection head to move in the vertical direction through the connecting piece; The second driving piece is used for driving the detection head to rotate in situ. Further, the projection welding element detection device further comprises a sensor for sensing the displacement amount driven by the first driving member. Further, the projection welding element detection device further comprises a support and a guide structure, wherein the guide structure comprises guide grooves and guide blocks which are matched with each other, one of the guide grooves and the guide blocks is connected with the connecting piece, and the other guide groove and the guide block are connected with the support. Further, the guide groove comprises a first guide groove, and the concave shape of the first guide groove is matched with the convex shape of the guide block. Further, the projection welding element detection device further comprises a limiting piece, the limiting piece comprises a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are distributed in the vertical direction and are arranged on the support, and the maximum driving range of the first driving piece is limited. Further, the first driving piece is a standard cylinder, and the second driving piece is a pneumatic motor. Further, the detection head is connected with the second driving piece through a floating connector. Further, the projection welding element detection device further comprises a base, the support is fixed to the base, and the first driving piece is fixed to the support. Further, the projection welding element detection device further comprises a supporting structure arranged on the base, the supporting structure comprises a first supporting part and a second supporting part with a containing cavity, the containing cavity is located below the detection head, and the first supporting part supports the projection welding element to be pushed off and enter the containing cavity in the detection process of the to-be-detected finished product. Further, the detection head is a tap or a sleeve, the tap is used for detecting the projection welding nut, and