Self-locking tool connecting mechanism for chip sintering and chip turnover device

Abstract

The utility model discloses a self-locking type tool connecting mechanism for chip sintering, which is arranged between a self-locking type tool for chip sintering and an overturning assembly and comprises a fixed seat, a bidirectional cylinder, a wedge-shaped pressing block and a trapezoidal baffle block, the fixed seat is arranged on the overturning assembly, the bidirectional cylinder is arranged on the fixed seat, and the wedge-shaped pressing block is arranged on the trapezoidal baffle block. The two wedge-shaped pressing blocks are arranged at the two output ends of the two-way air cylinder, the wedge-shaped check block is fixedly arranged on the self-locking tool for chip sintering and located between the two wedge-shaped blocks, and the inclined wedge faces of the two wedge-shaped pressing blocks are matched with the two opposite inclined faces of the trapezoidal check block respectively. A positioning protrusion is arranged on one connecting surface between the fixing base and the self-locking type tool for chip sintering, and a positioning groove matched with the positioning protrusion is formed in the other connecting surface between the fixing base and the self-locking type tool for chip sintering. The connecting mechanism is easy and convenient to operate and convenient to disassemble and assemble, and the machining efficiency is greatly improved. The utility model further discloses a chip turnover device with the self-locking type tool connecting mechanism for chip sintering.

Description

Technical Field

[0001] This utility model relates to the field of chip sintering technology, and in particular, to a self-locking tooling connection mechanism and a chip flipping device for chip sintering. Background Technology

[0002] Chip sintering fixtures are crucial equipment used to ensure the stable and precise completion of chip sintering tasks during high-temperature sintering. They are used to sinter chip wafers onto chip substrates. In actual production, to achieve station switching during the chip sintering process and to sinter different surfaces of the product, the chip sintering fixture carrying the product typically needs to be connected to a flip assembly. The traditional connection method uses bolts for fixing. This method requires aligning the two mounting surfaces to ensure the mounting holes are aligned. Furthermore, tightening the bolts is relatively cumbersome, inefficient, and labor-intensive, significantly reducing the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is that in the prior art, the operation of installing the sintering fixture carrying the chip on the flipping component is cumbersome and inefficient. Based on this, this utility model provides a self-locking fixture connection mechanism for chip sintering that is easy to disassemble and assemble.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a self-locking tooling connection mechanism for chip sintering, which is set between the self-locking tooling for chip sintering and the flipping assembly, including a fixed base, a bidirectional cylinder, a wedge-shaped pressure block and a trapezoidal stop block. The fixed base is set on the flipping assembly, the bidirectional cylinder is installed on the fixed base, there are two wedge-shaped pressure blocks and they are set on the two output ends of the bidirectional cylinder, the wedge-shaped stop block is fixedly set on the self-locking tooling for chip sintering and located between the two wedge-shaped blocks, the inclined wedge surfaces on the two wedge-shaped pressure blocks respectively cooperate with the two opposite inclined surfaces on the trapezoidal stop block, and between the connecting surfaces of the fixed base and the self-locking tooling for chip sintering, one of them is provided with a positioning protrusion and the other is provided with a positioning groove that cooperates with the positioning protrusion.

[0005] Furthermore, the trapezoidal stop has a trapezoidal cross-section, and one side of the trapezoidal stop corresponding to the lower base of the trapezoidal structure is close to the flipping component.

[0006] Furthermore, the positioning protrusion is fixedly installed on the fixing base, and the positioning groove is formed on the base plate. There are two positioning protrusions and two positioning grooves, with one positioning protrusion corresponding to one positioning groove.

[0007] Furthermore, the two positioning protrusions are symmetrically located on opposite sides of the trapezoidal stop.

[0008] Furthermore, an anti-wear sleeve is fixedly installed in the positioning groove. The anti-wear sleeve is a sleeve-shaped structure with both ends through it, and the positioning protrusion is inserted into the anti-wear sleeve.

[0009] Furthermore, chamfers are provided on the outer wall of one end of the positioning protrusion and on the inner wall of the anti-wear sleeve near the end of the positioning protrusion.

[0010] Furthermore, the self-locking fixture for chip sintering includes a base plate with a through groove. The portion of the base plate between two through grooves forms a connecting plate. The connecting plate is in contact with the surface of the fixing seat for mounting the positioning protrusion. The trapezoidal stop is fixedly mounted on the surface of the connecting plate away from the fixing seat. The wedge-shaped pressure block can movably penetrate the through groove.

[0011] A chip flipping device includes a self-locking fixture connection mechanism for chip sintering as described in any of the preceding claims, and further includes a self-locking fixture for chip sintering and a flipping assembly. The self-locking fixture for chip sintering includes a base plate, the flipping assembly includes a turntable, the fixing seat is fixedly connected to the turntable, and the trapezoidal stop is fixedly installed on the base plate.

[0012] Furthermore, the chip flipping device also includes a lifting assembly, which further includes a base and a rotating cradle. The base is connected to the lifting assembly, the rotating cradle is rotatable relative to the base, and the turntable is rotatable relative to the rotating cradle.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, the self-locking tooling connection mechanism or chip flipping device for chip sintering of this utility model is simpler and more convenient to operate, greatly improving the efficiency of disassembly and assembly. At the same time, when changing different tooling, it is only necessary to ensure that the trapezoidal stop and positioning protrusion (or positioning groove) on the base plate cooperate with the corresponding structure on the fixed seat. There is no need to consider the width of the tooling, nor is it necessary to replace the fixed seat. This reduces resource waste and also makes the same fixed seat compatible with multiple self-locking tooling for chip sintering, with strong versatility. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a perspective view of the chip flipping device of this utility model;

[0016] Figure 2 yes Figure 1 The front view of the chip flipping device shown;

[0017] Figure 3 yes Figure 1 The diagram shows the connection structure between the turntable, the connecting mechanism, and the self-locking fixture for chip sintering in the chip flipping device.

[0018] Figure 4 yes Figure 3 Partial exploded view;

[0019] Figure 5 yes Figure 3 A three-dimensional view from another perspective of the self-locking fixture used for chip sintering;

[0020] Figure 6 yes Figure 5 The diagram shows a partially exploded view of the self-locking fixture used for chip sintering.

[0021] Figure 7 yes Figure 6 A magnified view of a section at point A in the middle;

[0022] Figure 8 yes Figure 6 Exploded view of the intermediate pressure plate;

[0023] Figure 9 yes Figure 8 A schematic diagram of the connection structure between the retaining sleeve and the steel ball;

[0024] Figure 10 yes Figure 9 A stereoscopic view from another perspective;

[0025] Figure 11 yes Figure 9 Top view;

[0026] Figure 12 yes Figure 6 Top view of the intermediate pressure plate;

[0027] Figure 13 yes Figure 12 The pressure plate shown is a cross-sectional view along BB.

[0028] In the diagram: 100. Product; 1. Base plate; 12. Through groove; 13. Connecting plate; 14. Locking block; 2. Pressure plate; 21. Conical groove; 22. Limiting groove; 23. Receiving groove; 24. Wear-resistant sleeve; 210. Pressure plate body; 220. Pressure cap; 10. Locking pin; 3. Retaining sleeve; 31. Notch; 32. Limiting part; 33. Support part; 4. Steel ball; 5. Elastic element; 6. Support frame; 7. Unlocking assembly. 71. Support frame; 72. Cantilever; 73. Magnetic component; 8. Tilting assembly; 81. Base; 82. Rotating cradle; 83. Turntable; 84. First motor; 85. Second motor; 9. Lifting assembly; 11. Connecting mechanism; 111. Fixed seat; 1111. Positioning protrusion; 1112. Positioning groove; 1113. Anti-wear sleeve; 112. Two-way cylinder; 113. Wedge-shaped pressure block; 114. Trapezoidal stop block. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] Please see Figures 1-13 This utility model provides a self-locking fixture for chip sintering, including a base plate 1 and a pressure plate 2. The product 100 is fixed on the base plate 1 by the pressure plate 2. A locking pin 10 is fixed on the base plate 1. A conical groove 21 is formed on the pressure plate 2 along the axial direction of the locking pin 10. The conical groove 21 has a small end and a large end that are arranged opposite to each other. A retaining sleeve 3 is movably provided in the conical groove 21 along the axial direction of the locking pin 10. The retaining sleeve 3 is made of a ferromagnetic material (e.g., iron or nickel). Multiple steel rods are installed on the retaining sleeve 3 on one side of the small end of the conical groove 21. The steel ball 4 is movable radially along the retaining sleeve 3. The retaining sleeve 3 has a notch 31 on its side wall corresponding to the steel ball 4. An elastic element 5 is provided between the retaining sleeve 3 and the pressure plate 2 in a telescopic manner along the moving direction of the retaining sleeve 3. The locking pin 10 is inserted into the conical groove 21 from the small end to the large end. Multiple steel balls 4 surround the outside of the locking pin 10. The steel balls 4 can be tightly held against the locking pin 10 under the elastic force of the elastic element 5, or disengage from the locking pin 10 when the retaining sleeve 3 is attracted and moved by a magnetic element (e.g., a strong magnet such as a magnet or electromagnet).

[0031] The self-locking fixture for chip sintering of this utility model, when the locking pin 10 is not inserted into the conical groove 21, the retaining sleeve 3 is held on the small end side of the conical groove 21 by the elastic force of the elastic element 5. The steel ball 4 is also located on the small end side. After the outer wall of the steel ball 4 passes through the notch 31, it can contact the groove wall of the conical groove 21. Under the restriction of the small end of the conical groove 21, multiple steel balls 4 approach each other.

[0032] As the locking pin 10 is gradually inserted into the conical groove 21 from the small end, the locking pin 10 pushes the surrounding steel balls 4 outwards and causes the retaining sleeve 3 to move a small distance away from the conical groove 21 against the elastic force of the elastic element 5. Finally, the locking pin 10 passes between the steel balls 4. Under the action of the elastic element 5, the steel balls 4 have a tendency to move towards the small end of the conical groove 21. Thus, under the limiting action of the groove wall of the conical groove 21, the steel balls 4 move radially along the retaining sleeve 3 and press tightly against the outer wall of the locking pin 10, thereby locking the locking pin 10. At this time, the steel balls 4 are in a locked state, the locking pin 10 cannot be moved out of the conical groove 21, the pressure plate 2 and the base plate 1 cannot be separated, and the product 100 is pressed between the base plate 1 and the pressure plate 2.

[0033] When it is necessary to remove the pressure plate 2, the magnetic component is moved to the vicinity of the large end of the conical groove 21. The magnetic component can magnetically attract the retaining sleeve 3 made of ferromagnetic material, so that the retaining sleeve 3 overcomes the elastic force of the elastic component 5 and moves towards the large end of the conical groove 21, thereby driving the steel ball 4 to move synchronously. At this time, the steel ball 4 is freed from the limitation of the side wall of the small end of the conical groove 21, and the movable space of the steel ball 4 increases, so that the steel ball 4 can move radially along the retaining sleeve 3. Thus, the squeezing effect of the steel ball 4 on the locking pin 10 disappears, and the steel ball 4 is in the unlocked state. At this time, the locking pin 10 can be easily moved out of the conical groove 21 because it is freed from the squeezing effect of the steel ball 4, so that the pressure plate 2 can be removed from the base plate 1.

[0034] Please see Figure 8 , Figure 9 The retaining sleeve 3 is coaxially arranged with the conical groove 21. Multiple limiting portions 32 are axially protruding from the end of the retaining sleeve 3 away from the steel ball 4. Multiple limiting grooves 22 are provided on the pressure plate 2, with each limiting groove 22 corresponding to a limiting portion 32. The limiting portion 32 slidably passes through the corresponding limiting groove 22 along the axial direction of the retaining sleeve 3. When the retaining sleeve 3 moves under the elastic force of the elastic member 5 or the magnetic force of the magnetic member, the limiting portions 32 slide relative to the limiting grooves 22 along the axial direction of the retaining sleeve 3. The cooperation between the limiting grooves 22 and the limiting portions 32 ensures that the retaining sleeve 3 can only move axially along the conical groove 21 and cannot rotate relative to the pressure plate 2, thereby ensuring the stability and reliability of the steel ball 4 when it locks the locking pin 10.

[0035] In this embodiment, the retaining sleeve 3 is generally a hollow cylindrical structure. The limiting part 32 protrudes from the outer wall of one end of the retaining sleeve 3. The limiting part 32 is an arc-shaped plate structure, and the outer arc surfaces of multiple limiting parts 32 are located on the same circumference. The pressure plate 2 has a receiving groove 23 that communicates with the large end of the conical groove 21. The receiving groove 23 is a circular groove, and the outer diameter of the receiving groove 23 is larger than the outer diameter of the large end of the conical groove 21. The limiting part 32 extends into the receiving groove 23, and the side wall of the limiting part 32 near the steel ball 4 can abut against the bottom wall of the receiving groove 23. When the locking pin 10 is not inserted into the conical groove 21, the retaining sleeve 3 extends into the conical groove 21 under the elastic force of the elastic member 5. The limiting part 32 abuts against the bottom wall of the receiving groove 23, which plays a good positioning role for the retaining sleeve 3. Furthermore, the limiting part 32 and the retaining sleeve 3 are integrally formed structures and are both made of ferromagnetic materials, which facilitates production and also helps enterprises control production costs.

[0036] The retaining sleeve 3 has a hollow conical structure at one end near the base plate 1. A notch 31 is formed on the conical structure, and steel balls 4 are installed on the conical structure. The conical structure cooperates with the conical groove 21. In this embodiment, there are three notches 31, which are evenly distributed along the circumference of the retaining sleeve 3. Correspondingly, there are also three steel balls 4. The three steel balls 4 work together to press and fix the locking pin 10, ensuring that the locking pin 10 is subjected to balanced force and preventing deformation of the locking pin 10, making it more reliable in use. In addition, through holes (not shown in the figure) are provided at the center of the end of the conical structure near the small opening end of the conical groove 21 and at the end of the pressure plate 2 located at the small opening end of the conical groove 21, for the locking pin 10 to be inserted into the retaining sleeve 3.

[0037] Please see Figure 10 , Figure 11 In a preferred embodiment, a support portion 33 is radially protruding from the inner wall of the retaining sleeve 3 on the side of the steel ball 4 away from the small opening end of the conical groove 21. An elastic element 5 is installed within the cavity of the retaining sleeve 3, with one end of the elastic element 5 elastically abutting against the support portion 33 and the other end elastically abutting against the pressure plate 2. In this embodiment, the elastic element 5 is a spring. It is understood that in other embodiments not shown, the elastic element 5 can also be a rigid and elastic element such as a stainless steel spring or a copper spring, which is not limited here. In this embodiment, the support portion 33 is a plate-like structure and has three portions, which are evenly distributed circumferentially on the inner wall of the retaining sleeve 3.

[0038] To prevent the steel ball 4 from wearing down the wall of the conical groove 21 during movement and locking the locking pin 10, a wear-resistant sleeve 24 is fixedly installed on the wall of the conical groove 21. The wear-resistant sleeve 24 is conical, and the steel ball 4 can abut against it after passing through the notch 31. The wear-resistant sleeve 24 is made of steel or copper to enhance its wear resistance. When the wear-resistant sleeve 24 becomes severely worn due to prolonged use, only the wear-resistant sleeve 24 needs to be replaced individually, without replacing the entire pressure plate 2, thus avoiding material waste and reducing production costs.

[0039] Please see Figure 8 , Figure 12 and Figure 13 In this embodiment, the pressure plate 2 includes a pressure plate body 210 and a pressure cover 220. A conical groove 21 is formed on the pressure plate body 210, and a retaining sleeve 3 is movably mounted on the pressure cover 220. The pressure cover 220 is detachably mounted on the pressure plate body 21 corresponding to the conical groove 21. During installation, the retaining sleeve 3 with steel balls 4 is first installed on the pressure cover 220, and then the pressure cover 220 is fixedly installed on the pressure plate body 210. The pressure plate 2 is designed as a separate structure of the pressure cover 220 and the pressure plate body 210 to facilitate the installation of the retaining sleeve 3. In addition, the pressure cover 220 and the pressure plate body 210 are fixedly connected by bolts.

[0040] As a preferred embodiment, both the base plate 1 and the pressure plate 2 are generally rectangular plate structures. A locking pin 10 is provided at each of the four corners of the base plate 1, and a retaining sleeve 3 is provided at each of the four corners of the pressure plate 2. In this way, the base plate 1 and the pressure plate 2 are connected at multiple positions at the same time, which improves the connection stability between the two and enhances the reliability of clamping the product 100.

[0041] Please see Figure 1 , Figure 2 The present invention also provides a chip flipping device, including the above-mentioned self-locking fixture for chip sintering, and further including a support frame 6, an unlocking component 7, a flipping component 8 and a lifting component 9. The unlocking component 7 is installed on the support frame 6, the flipping component 8 can move longitudinally under the action of the lifting component 9, and the base plate 1 of the self-locking fixture for chip sintering is fixedly installed on the flipping component 8.

[0042] The support frame 6 is roughly quadrilateral in shape. The unlocking component 7 includes a support frame 71, a cantilever 72, and a magnetic component 73. The support frame 71 is fixedly mounted on the support frame 6. The cantilever 72 is movably mounted on the support frame 71 in the horizontal direction. The magnetic component 73 is fixedly mounted on the cantilever 72 and located above the pressure plate 2. The retaining sleeve 3 can move under the magnetic attraction of the magnetic component 73 to overcome the elastic force of the elastic component 5, thereby switching the steel ball 4 from the locked state to the unlocked state, so that the pressure plate 2 can be removed after the product 100 is sintered.

[0043] During unlocking, the chip on the flipping component 8 is first rotated using a self-locking fixture until the pressure plate 2 is in the upper position. Then, the horizontally moving cantilever 72 moves the magnetic component 73 synchronously from the waiting position to directly above the retaining sleeve 3. Next, the robotic arm grips and fixes the pressure plate 2, keeping it stationary. Then, driven by the lifting component 9, the pressure plate 2 is moved upwards and gradually approaches the magnetic component 73 (the robotic arm moves synchronously with the pressure plate 2). When it reaches a certain height from the magnetic component 73, the retaining sleeve 3 is attracted upwards by the magnetic attraction of the magnetic component 73, thus switching the steel ball 4 from the locked state to the unlocked state. At this time, the lifting component 9 is controlled to move the base plate 1 downwards, separating the base plate 1 and the pressure plate 2. Then, the cantilever 72, along with the magnetic component 73, returns to the waiting position, and the robotic arm removes the removed pressure plate 2.

[0044] In this embodiment, a mounting groove (not shown) is provided on the cantilever 72, and the magnetic component 73 is fixedly installed in the mounting groove, so that the cantilever 72 covers the outside of the magnetic component 73. The magnetic component 73 is a strong magnet, and the magnetic force it generates can pass through the cantilever 72 and magnetically attract the retaining sleeve 3. As a preferred embodiment, the magnetic component 73 is not formed by a single piece of magnet, but by multiple small magnets arranged in a Helix shell array. This magnetic structure allows a small number of magnets to generate a sufficiently strong unilateral magnetic field, which is beneficial for the magnetic component 73 to magnetically attract the retaining sleeve 3.

[0045] The support frame 71 is generally T-shaped. The cantilever 72 can be connected to the support frame 71 via a cylinder or screw drive mechanism to allow the cantilever 72 to move horizontally relative to the support frame 71. The specific drive method is not limited here. In this embodiment, the cantilever 72 is a long strip structure and there are two of them. The two magnetic elements 72 are arranged parallel to each other, and the two cantilever 72 are moved by independent drive mechanisms. In this way, the movement of the two magnetic elements 73 will not affect each other, so as to ensure that the magnetic elements 73 can move accurately to the top of the retaining sleeve 3 at different positions.

[0046] The retaining sleeve 3 is made of conductive material, and the cantilever 72 is also made of conductive material, such as carbon steel, which is also conductive. Wires are connected to both cantilever 72, and the two wires are connected to the same circuit and respectively to the positive and negative terminals of the power supply. When the retaining sleeves 3 on both sides are successfully attracted by the magnetic component 73, the retaining sleeves 3 and cantilever 72 are in contact, and the circuit where the wires are located is in a conductive state. At this time, the current in the circuit is transmitted through one of the cantilever 72 to the retaining sleeve 3 on one side, and further to the pressure plate 2, and then to the retaining sleeve 3 on the other side, and further to the other cantilever 72. Therefore, the ammeter set in the circuit will indicate a reading (for example, the current is 4mA), indicating that the tripping is successful, that is, the steel ball 4 is successfully unlocked. At this time, the lifting assembly 9 can be controlled to drive the base plate 1 to move down, so that the pressure plate 2 and the base plate 1 separate. When at least one of the retaining sleeves 3 on both sides is not successfully magnetically attracted, the circuit where the wire is located is in an open circuit state, and the ammeter in the circuit will not show any reading, indicating that the tripping was unsuccessful. At this time, the lifting assembly 9 will not drive the base plate 1 to move down.

[0047] Please see Figures 3-6 In this embodiment, the chip flipping device also includes a connecting mechanism 11, and the flipping component 8 and the base plate 1 on the tooling are detachably connected through the connecting mechanism 11. Specifically, the connecting mechanism 11 includes a fixed base 111, a two-way cylinder 112, a wedge-shaped pressure block 113, and a trapezoidal stop block 114. The fixed base 111 is mounted on the flipping assembly 8, the two-way cylinder 112 is mounted on the fixed base 111, the wedge-shaped blocks 113 are two in number and are connected to the two output ends of the two-way cylinder 112, the trapezoidal stop block 114 is fixedly mounted on the base plate 1 and sandwiched between the two wedge-shaped blocks 113, the cross section of the trapezoidal stop block 114 is a trapezoidal structure, the side of the trapezoidal stop block 114 corresponding to the lower base of the trapezoidal structure is close to the flipping assembly 8, the inclined wedge surfaces on the two wedge-shaped pressure blocks 113 respectively cooperate with the two inclined surfaces on the trapezoidal stop block 114, the base plate 1 and the fixed base 1 are detachably connected, between the connecting surfaces of the fixed base 111 and the base plate 1, one surface is provided with a positioning protrusion 1111, and the other surface is provided with a positioning groove 1112 that cooperates with the positioning protrusion 1111.

[0048] When installing the chip sintering self-locking fixture onto the flip assembly 8, first align the positioning protrusion 1111 with the positioning groove 1112, then place the base plate 1 on the fixed seat 111. At this time, the trapezoidal stop 114 is positioned between the two wedge blocks 113. Next, activate the bidirectional cylinder 112 to move the two wedge blocks 113 closer together, thereby pressing the trapezoidal stop 114 between the two wedge blocks 113. During installation, the engagement between the positioning protrusion 1111 and the positioning groove 1112 provides good positioning for the base plate 1 and prevents the base plate 1 from moving horizontally relative to the fixed seat 111. Then, the pressing action of the wedge blocks 113 on the trapezoidal stop 114 effectively prevents the base plate 1 from moving vertically relative to the fixed seat 111. Thus, the connection mechanism 11 can stably lock the base plate 1 onto the fixed seat 111.

[0049] With the above-described structure, when changing different tooling, it is only necessary to ensure that the trapezoidal stop 114 and the positioning protrusion 1111 (or positioning groove 1112) on the base plate 1 match the corresponding structure on the fixed seat 111. There is no need to consider the width of the tooling, nor is it necessary to replace the fixed seat 111. This reduces resource waste and also makes the same fixed seat 111 compatible with various self-locking tooling for chip sintering, with strong versatility.

[0050] In this embodiment, the positioning protrusion 1111 is fixedly mounted on the fixing base 111, and the positioning groove 1112 is formed on the base plate 1. In a preferred embodiment, the positioning protrusion 1111 is a circular positioning post, and the positioning groove 1112 is a circular through hole. To prevent the positioning protrusion 1111 from rotating relative to the positioning groove 1112 in the horizontal plane, two positioning protrusions 1111 and two positioning grooves 1112 are provided, with one positioning protrusion 1111 correspondingly connected to one positioning groove 1112. Simultaneously, the two positioning protrusions 1111 are symmetrically located on opposite sides of the trapezoidal stop block 114 to ensure stable positioning. It should be noted that the two positioning protrusions 1111 are located on the same side of the fixing base 111. This is because when replacing the base plate 1, the width of the base plate 1 does not need to be considered; it is only necessary to ensure that the structure on one side of the base plate 1 matches the corresponding structure on the fixing base 111.

[0051] In other embodiments not shown, the positioning protrusion 1111 can also be a non-circular cylindrical structure, such as a polygonal or elliptical cross-section. In this case, there can be only one positioning protrusion 1111, which can achieve positioning while preventing the base plate 1 from rotating relative to the fixed seat 111. In addition, the positioning protrusion 1111 can also be provided on the base plate 1, and the positioning groove 1112 can be provided on the fixed seat 111, which is not limited here.

[0052] In a preferred embodiment, an anti-wear sleeve 1113 is fixedly installed within the positioning groove 1112. The anti-wear sleeve 1113 is a sleeve-shaped structure with both ends extending through it. The positioning protrusion 1111 is inserted into the anti-wear sleeve 1113. Chamfers are provided on the outer wall of one end of the positioning protrusion 1111 and on the inner wall of the anti-wear sleeve 1113 near the end of the positioning protrusion 1111. The anti-wear sleeve 1113 is made of copper to enhance its wear resistance. In addition, the chamfers facilitate the smooth insertion of the positioning protrusion 1111 into the anti-wear sleeve 1113.

[0053] In a preferred embodiment, a through groove 12 is provided on the base plate 1, and a connecting plate 13 is formed on the part of the base plate 1 located between two through grooves 12. The connecting plate 13 is in contact with the surface of the fixing seat 111 for mounting the positioning protrusion 1111. A trapezoidal stop 114 is fixedly installed on the surface of the connecting plate 13 away from the fixing seat 111, and a wedge-shaped pressure block 113 is movably inserted through the through groove 12.

[0054] Please refer to it again. Figure 1 The flipping assembly 8 includes a base 81, a rotating cradle 82, and a turntable 83. The base 81 is connected to the lifting assembly 9. The rotating cradle 82 is rotatable relative to the base 81, and the turntable 83 is rotatable relative to the rotating cradle 82. A fixed base 111 is fixedly connected to the turntable 83. In this embodiment, a first motor 84 is installed on the base 81 to drive the rotating cradle 82 to rotate. A second motor 85 is installed on the rotating cradle 82 to drive the turntable 83 to rotate.

[0055] The lifting assembly 9 is used to drive the base 81 to move longitudinally, thereby moving the self-locking tooling for chip sintering longitudinally. The lifting assembly 9 can be a cylinder or an electric push rod, which is not limited here. In addition, the chip flipping device of this utility model also includes a frame (not shown in the figure), and the support frame 6 and the lifting assembly 9 are both fixedly installed on the frame.

[0056] It should be noted that you should refer to [link / reference]. Figure 6 In this embodiment, locking blocks 14 are fixedly connected to the four corners of the base plate 1. The locking blocks 14 are cuboid block structures. Two locking pins 10 are fixedly installed on each locking block 14. One locking pin 10 is located on the surface of the locking block 14 away from the base plate 1, and the other locking block 14 is located on the outer wall of the locking block 14. Thus, in specific implementation, the user can set multiple pressure plates 2 around the product 100 as needed to press and fix the product 100 from different directions, thereby meeting the sintering requirements of multiple surfaces of the product 100.

[0057] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-locking tool connecting mechanism for chip sintering, provided between a self-locking tool for chip sintering and a turnover assembly, characterized by: The chip sintering self-locking tool includes a fixed seat, a bidirectional cylinder, two wedge-shaped blocks and a trapezoidal block, the fixed seat is arranged on the turnover assembly, the bidirectional cylinder is installed on the fixed seat, the wedge-shaped blocks are arranged on the two output ends of the bidirectional cylinder, the trapezoidal block is fixedly arranged on the chip sintering self-locking tool and located between the two wedge-shaped blocks, the inclined surfaces of the two wedge-shaped blocks are matched with the opposite two inclined surfaces of the trapezoidal block respectively, and the connecting surfaces between the fixed seat and the chip sintering self-locking tool are provided with one positioning protrusion and the other positioning groove matched with the positioning protrusion.

2. The self-locking fixture connection mechanism for chip sintering according to claim 1, characterized in that: The trapezoidal block has a trapezoidal structure in cross section, and one side of the trapezoidal block corresponding to the lower base of the trapezoidal structure is close to the turnover assembly.

3. The self-locking fixture connection mechanism for chip sintering according to claim 1, characterized in that: The positioning protrusions are fixedly installed on the fixed seat, and the positioning grooves are arranged on the bottom plate, the positioning protrusions and the positioning grooves are both provided with two, and one positioning protrusion is connected with one positioning groove.

4. The self-locking fixture connection mechanism for chip sintering according to claim 3, characterized in that: The two positioning protrusions are symmetrically located on the opposite sides of the trapezoidal block.

5. The self-locking fixture connection mechanism for chip sintering according to claim 1, characterized in that: The positioning grooves are fixedly provided with wear-resistant sleeves, the wear-resistant sleeves have a sleeve structure with through ends, and the positioning protrusions are inserted into the wear-resistant sleeves.

6. The self-locking fixture connection mechanism for chip sintering according to claim 5, characterized in that: The outer wall of one end of the positioning protrusion and the inner wall of one end of the wear-resistant sleeve close to the positioning protrusion are both provided with chamfers.

7. The self-locking fixture connection mechanism for chip sintering according to claim 3, characterized in that: The chip sintering self-locking tool includes a bottom plate, the bottom plate is provided with through grooves, the part of the bottom plate between the two through grooves forms a connecting plate, the connecting plate is matched with the surface of the fixed seat for installing the positioning protrusions, the trapezoidal block is fixedly installed on the surface of the connecting plate away from the fixed seat, and the wedge-shaped blocks are movably penetrated through the through grooves.

8. A chip flipper device, characterized by: The chip turnover device includes the chip sintering self-locking tool connecting mechanism, the chip sintering self-locking tool and the turnover assembly, the chip sintering self-locking tool includes a bottom plate, the turnover assembly includes a rotating disc, the fixed seat is fixedly connected relative to the rotating disc, and the trapezoidal block is fixedly installed on the bottom plate.

9. The chip flipper of claim 8, wherein: The chip turnover device further includes a jacking assembly, the turnover assembly further includes a base and a rotating cradle, the base is connected with the jacking assembly, the rotating cradle is rotatable relative to the base, and the rotating disc is rotatable relative to the rotating cradle.

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