A scissor type draw latch jaw positioning device

Abstract

The utility model discloses a scissor formula pull -in nail clamping jaw positioning device relates to the field of machining, including lower mould base, the lower mould base top is passed through the connection and has the bolt head, the lower mould base bottom is connected with the die backing plate, the both sides of connecting seat rotatoryly connected with the clamping block, the clamping block is located the side of fixed head, and the spring is connected between two clamping blocks, the inside still is equipped with infrared sensor in the movable slot. This scissor formula pull -in nail clamping jaw positioning device, when fixed head moves down, can drive the sliding block to move down, when the sliding block moves down, can extrude the inner wall of sliding groove, through the extrusion of sliding block, can drive lower mould base and die backing plate to carry out the connection positioning, when the rotating block rotates, can rotate through the rotating groove, the threaded rod rotates and is passed through the inboard of slot later and promotes the connecting seat upward, when the connecting seat is promoted, can drive the side two clamping blocks and cylinder to separate, after separating, the clamping block can replace new.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a scissor-type pull stud claw positioning device. Background Technology

[0002] Machining is the process of cutting, shaping, or joining raw materials such as metals and plastics using mechanical means to achieve the required shape, size, and performance. Machining often uses scissor-type gripper structures. These structures use a drive device to generate uniform clamping force in the grippers, thereby moving and positioning specific components to ensure the stable operation of the device.

[0003] Currently, gripper positioning devices still have certain shortcomings, such as large operating errors and inaccurate positioning:

[0004] To overcome the problem of large device errors, the existing Chinese patent (publication number: CN207873780U) discloses a mechanical gripper with a positioning buffer device. The buffering movement of the mechanical gripper offsets the positioning error caused by machine tool fixture positioning or workpiece size error. It is suitable for shaft parts, disc parts or irregularly shaped parts, increasing the scope of application. The mechanical gripper has a buffering effect, protects the clamping plates, extends the service life, and accurately positions the workpiece.

[0005] However, the gripper positioning device currently in use still has certain shortcomings. Although the gripper in the above document is highly efficient to operate, the connection between the components is relatively complex and there are many parts, which can easily affect the later maintenance costs and efficiency, and it is not very convenient to use. Therefore, it is necessary to improve the existing structure. Utility Model Content

[0006] The purpose of this utility model is to provide a scissor-type rivet gripper positioning device to solve the problems mentioned in the background art, such as the inconvenience of positioning devices for positioning, and the inconvenience of installing and maintaining the grippers of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a scissor-type pull stud claw positioning device, comprising a lower mold base, wherein a pin head is connected through the top of the lower mold base, and a mold pad is connected to the bottom of the lower mold base.

[0008] The lower mold base has a sliding groove at the top, and a sliding block is fixed at the bottom of the pin head. The sliding block slides inside the sliding groove. A movable groove is provided through the bottom of the sliding groove. A clamping mechanism that positions the mold pad is provided inside the lower mold base.

[0009] A connecting plate is slidably connected inside the movable groove. A cylinder is installed at the bottom of the mold pad. The connecting plate is fixed at the output end of the cylinder. A rotating mechanism to improve the maintenance efficiency of the device is provided on the side of the connecting plate.

[0010] Furthermore, the clamping mechanism includes a fixing head, which is fixed to the bottom of the sliding block and slides through the movable groove. A connecting seat is connected to the top of the cylinder.

[0011] Furthermore, clamping blocks are rotatably connected to both sides of the connecting seat, the clamping blocks are located on the side of the fixed head, a spring is connected between the two clamping blocks, and an infrared sensor is also installed inside the movable groove.

[0012] Furthermore, a pushing mechanism is also provided inside the sliding groove. The pushing mechanism includes a hidden groove, which is opened inside the sliding groove floor. A movable ring is movably connected inside the hidden groove.

[0013] Furthermore, an external block one is fixed to the bottom of the movable ring, an external block two is fixed to the side of the connecting plate, and a fixing rod is fixed between the external block two and the external block one.

[0014] Furthermore, the rotating mechanism includes a through groove, four of which are provided on the side of the connecting plate, and four rotating grooves are provided at the bottom of the connecting seat, with a rotating block rotatably connected inside the rotating groove.

[0015] Furthermore, a threaded rod is fixed to the bottom of the rotating block, and a nut is threaded onto the surface of the threaded rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This scissor-type pull stud claw positioning device can drive the sliding block to move downward when the fixed head moves down. When the sliding block moves down, it can squeeze the inner wall of the sliding groove. The squeezing of the sliding block can drive the lower mold base to connect and position with the mold pad. When the rotating block rotates, it can rotate through the rotating groove. After the threaded rod rotates out through the inner side of the groove, it pushes the connecting seat upward. When the connecting seat is pushed, it can drive the two clamping blocks on the side to separate from the cylinder. After separation, the clamping blocks can be replaced with new ones.

[0018] 2. An infrared sensor is installed, which can monitor the inside of the moving slot, thereby enabling more accurate control of the cylinder operation and improving the positioning effect of the positioning device;

[0019] 3. A spring is provided to ensure that the two clamping blocks are continuously subjected to the opening force, so that the clamping blocks can automatically open when they are completely inside the movable groove, thereby facilitating the subsequent positioning of the lower mold base and the mold pad.

[0020] 4. A nut is provided, which connects to the threaded rod, allowing the connecting seat and the connecting plate to be connected and disassembled. This facilitates the installation and replacement of the grippers by the positioning device, improving the efficiency of the positioning device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the lower mold base of this utility model;

[0023] Figure 3 This is an enlarged three-dimensional structural diagram of the sliding block of this utility model;

[0024] Figure 4 This is an enlarged three-dimensional structural diagram of the fixed head of this utility model;

[0025] Figure 5 This is an enlarged three-dimensional structural diagram of the clamping block of this utility model;

[0026] Figure 6 This is an enlarged three-dimensional structural diagram of the threaded rod of this utility model.

[0027] In the diagram: 1. Lower mold base; 2. Pin head; 3. Mold pad; 101. Sliding groove; 102. Sliding block; 103. Movable groove; 104. Fixed head; 105. Connecting seat; 106. Clamping block; 107. Spring; 108. Hidden groove; 109. Movable ring; 110. External block one; 111. External block two; 112. Fixed rod; 113. Infrared sensor; 114. Connecting plate; 115. Through groove; 116. Rotating groove; 117. Rotating block; 118. Threaded rod; 119. Nut. Detailed Implementation

[0028] 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.

[0029] Example 1, such as Figures 1-5The present invention provides the following technical solution to address the problem of inconvenient positioning of the positioning device: a clamping mechanism is disclosed, comprising a lower mold base 1, a pin head 2 connected through the top of the lower mold base 1, and a mold pad 3 connected to the bottom of the lower mold base 1; a sliding groove 101 is provided on the top of the lower mold base 1, a sliding block 102 is fixed at the bottom of the pin head 2, the sliding block 102 slides inside the sliding groove 101, a movable groove 103 is provided through the bottom of the sliding groove 101, and a clamping mechanism for positioning with the mold pad 3 is provided inside the lower mold base 1. The clamping mechanism includes a fixed head 104, which is fixed to the bottom of the sliding block 102 and slides through the movable groove 103. A connecting seat 105 is connected to the top of the cylinder, and clamping blocks 106 are rotatably connected to both sides of the connecting seat 105. The clamping blocks 106 are located on the side of the fixed head 104, and a spring 107 is connected between the two clamping blocks 106. An infrared sensor 113 is also installed inside the movable groove 103.

[0030] When using the positioning device, the lower mold base 1 and the mold pad 3 need to be tightly attached. The lower mold base 1 can drive the fixed head 104 to move into the movable groove 103. At the same time, the fixed head 104 can be located between the two clamping blocks 106. The infrared sensor 113 inside the movable groove 103 can detect the entry of an object. The infrared sensor 113 can start the cylinder to run based on the monitored data. The output end of the cylinder can then retract. When the cylinder retracts, it can drive the clamping block 106 to move downward. When the clamping block 106 moves downward, it will squeeze the narrow inner wall of the movable groove 103. The clamping block 106 is subjected to... During extrusion, the connecting seat 105 can be rotated. When the clamping block 106 rotates, it can compress the spring 107 on the side. After the clamping block 106 is pressed against the side of the fixed head 104, and because the clamping block 106 is constantly moving downward, the clamping block 106 can compress and drive the fixed head 104 to move downward. When the fixed head 104 moves downward, it can drive the sliding block 102 to move downward. When the sliding block 102 moves downward, it can compress the inner wall of the sliding groove 101. Through the compression of the sliding block 102, the lower mold base 1 can be connected and positioned with the mold pad 3, which improves the efficiency of the positioning device.

[0031] Example 2, as follows Figure 4 and Figure 3The present invention provides the following technical solution: In order to solve the problem that the pin head 2 of the positioning device is difficult to reset in time, which affects the operating efficiency, a pushing mechanism is disclosed based on the first embodiment: a pushing mechanism is also provided inside the sliding groove 101. The pushing mechanism includes a hidden groove 108, and the hidden groove 108 is opened on the ground inside the sliding groove 101. A movable ring 109 is movably connected inside the hidden groove 108. An external block 110 is fixed at the bottom of the movable ring 109. An external block 2 111 is fixed on the side of the connecting plate 114. A fixing rod 112 is fixed between the external block 2 111 and the external block 110.

[0032] When the positioning device needs to separate the lower mold base 1 from the mold pad 3, it only needs to restart the cylinder to push the clamping block 106 to reset. After the clamping block 106 moves into the movable groove 103, it can be re-expanded by the spring 107. At the same time, the output end of the cylinder can drive the outer block 111 to move upward. When the outer block 111 moves upward, it can drive the fixed rod 112 to move. When the fixed rod 112 moves, it can push the outer block 110 and the movable ring 109 to move. When the movable ring 109 moves upward to the bottom of the sliding block 102, it can be squeezed. After the sliding block 102 is squeezed, it can push the pin head 2 to move upward and reset, which improves the convenience of the positioning device operation.

[0033] Example 3, as follows Figure 5 and Figure 6 The present invention provides the following technical solution to address the problem of inconvenient installation and maintenance of the grippers in the positioning device. Based on embodiment one, a rotating mechanism is disclosed: a connecting plate 114 is slidably connected inside the movable groove 103; a cylinder is installed at the bottom of the mold pad 3; the output end of the cylinder is fixed to the connecting plate 114; a rotating mechanism for improving device maintenance efficiency is provided on the side of the connecting plate 114; the rotating mechanism includes a through groove 115, four through grooves are opened on the side of the connecting plate 114; four rotating grooves 116 are opened at the bottom of the connecting seat 105; a rotating block 117 is rotatably connected inside the rotating groove 116; a threaded rod 118 is fixed at the bottom of the rotating block 117; and a nut 119 is threadedly connected to the surface of the threaded rod 118.

[0034] The grippers of the positioning device need to be replaced after long-term use. First, the nut 119 can be rotated to slide along the threaded rod 118. The threaded rod 118 can slide along the bottom of the connecting plate 114. After the threaded rod 118 slides to a certain position, it can be rotated. When the threaded rod 118 rotates, it drives the rotating block 117 to rotate. When the rotating block 117 rotates, it can rotate through the rotating groove 116. After the threaded rod 118 rotates out of the through groove 115, it pushes the connecting seat 105 upwards. When the connecting seat 105 is pushed, it can cause the two side clamping blocks 106 to separate from the cylinder. After separation, the clamping blocks 106 can be replaced with new ones, thereby improving the cost and efficiency of later maintenance of the positioning device.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A scissor-type pull stud positioning device, comprising a lower mold base (1), wherein a pin head (2) is connected through the top of the lower mold base (1), and a mold pad (3) is connected to the bottom of the lower mold base (1), characterized in that: The lower mold base (1) has a sliding groove (101) on the top, and a sliding block (102) is fixed at the bottom of the pin head (2). The sliding block (102) slides inside the sliding groove (101). A movable groove (103) is provided through the bottom of the sliding groove (101). The lower mold base (1) is provided with a clamping mechanism that positions itself with the mold pad (3). The movable groove (103) is slidably connected to a connecting plate (114). A cylinder is installed at the bottom of the mold pad (3). The output end of the cylinder is fixed to the connecting plate (114). A rotating mechanism to improve the maintenance efficiency of the device is provided on the side of the connecting plate (114).

2. The scissor-type rivet clamp positioning device according to claim 1, characterized in that: The clamping mechanism includes a fixing head (104), which is fixed to the bottom of the sliding block (102). The fixing head (104) slides through the movable groove (103). The top of the cylinder is connected to a connecting seat (105).

3. The scissor-type rivet clamp positioning device according to claim 2, characterized in that: The connecting seat (105) is rotatably connected to two clamping blocks (106) on both sides. The clamping blocks (106) are located on the side of the fixed head (104). A spring (107) is connected between the two clamping blocks (106). An infrared sensor (113) is also installed inside the movable groove (103).

4. The scissor-type rivet clamp positioning device according to claim 1, characterized in that: The sliding groove (101) is also provided with a pushing mechanism, which includes a hidden groove (108) and the hidden groove (108) is opened on the ground inside the sliding groove (101). A movable ring (109) is movably connected inside the hidden groove (108).

5. The scissor-type pull stud positioning device according to claim 4, characterized in that: The bottom of the movable ring (109) is fixed with an external block one (110), and the side of the connecting plate (114) is fixed with an external block two (111). A fixing rod (112) is fixed between the external block two (111) and the external block one (110).

6. The scissor-type rivet clamp positioning device according to claim 1, characterized in that: The rotating mechanism includes a through groove (115), four of which are provided on the side of the connecting plate (114), and four rotating grooves (116) are provided at the bottom of the connecting seat (105). A rotating block (117) is rotatably connected inside the rotating groove (116).

7. The scissor-type pull stud positioning device according to claim 6, characterized in that: The bottom of the rotating block (117) is fixed with a threaded rod (118), and a nut (119) is threaded onto the surface of the threaded rod (118).

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