Self-locking tool for chip sintering and chip turnover device

Abstract

The invention discloses a self-locking tool for chip sintering, and belongs to the technical field of chip sintering, the self-locking tool comprises a bottom plate and a pressing plate, a locking pin is arranged on the bottom plate, a conical groove is formed in the pressing plate, a retaining sleeve is movably arranged in the conical groove, the retaining sleeve is made of a ferromagnetic material, and a plurality of steel balls are arranged on the retaining sleeve and located in the small opening end of the conical groove. The steel balls can move in the radial direction of the retaining sleeve, a notch is formed in the side wall of the retaining sleeve, an elastic piece is telescopically arranged between the retaining sleeve and the pressing plate, the multiple steel balls are arranged outside the locking pin in a surrounding mode, and the steel balls can tightly abut against the locking pin under the elastic force effect of the elastic piece or can be separated from the locking pin when the retaining sleeve is attracted by the magnetic piece to move. The steel balls can be switched between the locking state and the unlocking state by moving the retaining sleeve, and the disassembly and assembly efficiency between the pressing plate and the bottom plate is greatly improved. The invention further discloses a chip turnover device with the self-locking type tool for chip sintering.

Description

Technical Field

[0001] The invention relates to the technical field of chip sintering, and in particular to a self-locking tooling for chip sintering and a chip turning device. Background Art

[0002] The chip sintering tooling is an important equipment to ensure that the chip products can stably and accurately complete the sintering task during the high-temperature sintering process. It is used to sinter the chip wafers on the chip base. The tooling used for chip sintering generally includes a base plate and a pressure plate. When in use, the product is placed on the base plate, and then the pressure plate is fixed on the base plate, so that the product is pressed and fixed between the base plate and the pressure plate. The pressure plate is used to fix the product on the one hand, and on the other hand, it also provides the necessary pressure conditions for the product when sintering. The pressure plate and the base plate on the traditional chip sintering tooling usually adopt a detachable connection method such as bolt connection or clamping. The above-mentioned connection methods are relatively troublesome during the disassembly and assembly process, which is not conducive to efficient production. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in the prior art, the connection method between the upper pressure plate and the bottom plate of the chip sintering tool is not convenient for disassembly and assembly. Based on this, the present invention provides a self-locking tool for chip sintering that is easy to disassemble and assemble to improve production efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a self-locking tool for chip sintering, comprising a base plate and a pressure plate, wherein a locking pin is provided on the base plate, a conical groove is provided on the pressure plate along the axial direction of the locking pin, a retaining sleeve is movably provided in the conical groove along the axial direction of the locking pin, the retaining sleeve is made of ferromagnetic material, a plurality of steel balls are provided on the retaining sleeve in the small mouth end of the conical groove, the steel balls are movable along the radial direction of the retaining sleeve, a notch is provided on the side wall of the retaining sleeve corresponding to the steel balls, an elastic member is telescopically provided between the retaining sleeve and the pressure plate along the movable direction of the retaining sleeve, the locking pin is inserted into the conical groove, a plurality of the steel balls are surrounded by the outside of the locking pin, the steel balls can be tightly held against the locking pin under the elastic force of the elastic member, or can be separated from the locking pin when the magnetic member of the retaining sleeve cup is attracted and moved.

[0005] Furthermore, the retaining sleeve is coaxially arranged with the conical groove, and a plurality of limiting portions are axially protruded on one end of the retaining sleeve away from the steel ball, and a plurality of limiting grooves are formed on the pressure plate, one limiting groove corresponds to one limiting portion, and the limiting portion can slidably pass through the corresponding limiting groove along the axial direction of the retaining sleeve.

[0006] Furthermore, the limiting portion is protruded on the outer side wall of one end of the retaining sleeve, and the limiting portion is an arc-shaped plate-like structure. The outer arc surfaces of the plurality of limiting portions are together on the same circumference. The pressure plate is provided with a receiving groove connected to the large mouth end of the conical groove. The limiting portion extends into the receiving groove, and the side wall of the limiting portion close to the steel ball can be abutted against the bottom wall of the receiving groove.

[0007] Furthermore, a hollow conical structure is formed on one end of the retaining sleeve close to the bottom plate, the notch is provided on the conical structure, the steel ball is mounted on the conical structure, and the conical structure matches the conical groove.

[0008] Furthermore, a support portion is provided on the inner wall of the retaining sleeve at a side of the small end of the steel ball away from the conical groove and protrudes radially along the retaining sleeve, and the elastic member is installed in the cavity of the retaining sleeve, one end of the elastic member is elastically abutted against the support portion, and the other end of the elastic member is elastically abutted against the pressure plate.

[0009] Furthermore, a wear-resistant sleeve is fixedly mounted on the groove wall of the conical groove, and the wear-resistant sleeve is a conical sleeve. The steel ball can abut against the wear-resistant sleeve after passing through the groove.

[0010] Furthermore, the pressure plate includes a pressure plate body and a pressure cover, the conical groove is provided on the pressure plate body, the retaining sleeve is movably mounted on the pressure cover, and the pressure cover is detachably mounted on the pressure plate body corresponding to the conical groove.

[0011] A chip flipping device comprises the self-locking tooling for chip sintering as described in any of the aforementioned items, and also comprises a support frame and an unlocking assembly, wherein the unlocking assembly comprises a support frame, a cantilever and a magnetic member, wherein the support frame is fixedly mounted on the support frame, the cantilever is movably arranged on the support frame along the horizontal direction, the magnetic member is fixedly mounted on the cantilever and is located above the pressure plate, and the retaining sleeve can move by overcoming the elastic force of the elastic member under the magnetic adsorption action of the magnetic member.

[0012] Furthermore, the retaining sleeve and the cantilever are both made of conductive materials, and the two cantilevers are connected to wires. The two wires are connected to the same circuit with an ammeter and are respectively connected to the positive and negative poles of the power supply. The retaining sleeve contacts the cantilever when being adsorbed by the magnetic part.

[0013] Furthermore, the chip flipping device also includes a flipping assembly and a lifting assembly, the flipping assembly includes a base, a rotating cradle and a turntable, the rotating cradle is rotatable relative to the base, the turntable is rotatable relative to the rotating cradle, the self-locking tooling for chip sintering is installed on the base, and the base is connected to the lifting assembly.

[0014] The beneficial effects of the present invention are as follows: the self-locking tooling or chip flipping device for chip sintering of the present invention can drive the steel ball to move through the movable retaining sleeve, so that the steel ball can be switched between the locked and unlocked states. When the steel ball is in the locked state, the steel ball is tightly pressed on the outside of the locking pin under the action of the elastic member, thereby squeezing and fixing the locking pin; when the steel ball is in the unlocked state, the movable space of the steel ball in the conical groove is increased, and the locking pin can be separated from the steel ball at this time. Compared with the prior art, the disassembly and assembly efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 is a three-dimensional diagram of the chip flipping device of the present invention;

[0017] Figure 2 yes Figure 1 A front view of the chip flipping device shown;

[0018] Figure 3 yes Figure 1 A schematic diagram of the connection structure among the turntable, the connection mechanism and the self-locking tooling for chip sintering in the chip flipping device shown;

[0019] Figure 4 yes Figure 3 Partial exploded view of

[0020] Figure 5 yes Figure 3 A three-dimensional image from another angle of the self-locking tooling for sintering the middle chip;

[0021] Figure 6 yes Figure 5 A partially exploded view of a self-locking tooling for chip sintering shown;

[0022] Figure 7 yes Figure 6 A partial enlarged view of the middle A;

[0023] Figure 8 yes Figure 6 Exploded view of the medium pressure plate;

[0024] Fig. 9 yes Figure 8 Schematic diagram of the connection structure between the middle retaining sleeve and the steel ball;

[0025] Fig.10 yes Fig. 9 A stereogram from another perspective;

[0026] Fig.11 yes Fig. 9 A top view of

[0027] Fig.12 yes Figure 6 Top view of the medium pressure plate;

[0028] Fig.13 yes Fig.12 The pressure plate is shown in a cross-sectional view along BB.

[0029] In the figure: 100, product, 1, bottom plate, 12, through groove, 13, connecting plate, 14, locking block, 2, pressing plate, 21, conical groove, 22, limiting groove, 23, containing groove, 24, wear-resistant sleeve, 210, pressing plate body, 220, pressure cover, 10, locking pin, 3, retaining sleeve, 31, missing groove, 32, limiting part, 33, supporting part, 4, steel ball, 5, elastic member, 6, supporting frame, 7, unlocking assembly, 71. Support frame, 72. Cantilever, 73. Magnetic member, 8. Flip 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. Bidirectional cylinder, 113. Wedge-shaped pressure block, 114. Trapezoidal stopper. DETAILED DESCRIPTION

[0030] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0031] See also Figure 1-Figure 13 The present invention provides a self-locking tool for chip sintering, comprising a base plate 1 and a pressing plate 2, wherein a product 100 is fixed on the base plate 1 through the pressing plate 2, a locking pin 10 is fixedly arranged on the base plate 1, a conical groove 21 is opened on the pressing plate 2 along the axial direction of the locking pin 10, the conical groove 21 has a small end and a large end arranged oppositely, a retaining sleeve 3 is movably arranged in the conical groove 21 along the axial direction of the locking pin 10, the retaining sleeve 3 is made of ferromagnetic material (for example, iron or nickel, etc.), and a plurality of steel balls are installed on one side of the retaining sleeve 3 located at the small end of the conical groove 21 4, the steel ball 4 is movable along the radial direction of the retaining sleeve 3, and a notch 31 is provided on the side wall of the retaining sleeve 3 corresponding to the steel ball 4. An elastic member 5 is telescopically arranged between the retaining sleeve 3 and the pressure plate 2 along the movable 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. A plurality of steel balls 4 are arranged around the outside of the locking pin 10. The steel ball 4 can be tightly held against the locking pin 10 under the elastic force of the elastic member 5, or can be separated from the locking pin 10 when the retaining sleeve 3 is attracted and moved by a magnetic member (for example, a strong magnet such as a magnet or an electromagnet).

[0032] The self-locking tooling for chip sintering of the present invention, when the locking pin 10 is not inserted into the conical groove 21, the retaining sleeve 3 is kept on the side of the small end of the conical groove 21 under the elastic force of the elastic member 5, and the steel ball 4 is also located on the side of the small end. The outer wall of the steel ball 4 can contact the groove wall of the conical groove 21 after passing through the notch 31. Under the restriction of the small end of the conical groove 21, multiple steel balls 4 are close to each other.

[0033] When the locking pin 10 is gradually inserted into the conical groove 21 from the small end of the conical groove 21, the locking pin 10 will push the multiple steel balls 4 around it outward, and make the retaining sleeve 3 overcome the elastic force of the elastic member 5 and move a small distance in the direction away from the conical groove 21, so that the locking pin 10 is finally passed through the multiple steel balls 4. Under the action of the elastic member 5, the steel balls 4 have a tendency to move toward the small end of the conical groove 21, so that the steel balls 4 move radially along the retaining sleeve 3 under the limiting action of the groove wall of the conical groove 21 and are tightly pressed on 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 removed from the conical groove 21, the pressure plate 2 and the bottom plate 1 cannot be disassembled, and the product 100 is pressed between the bottom plate 1 and the pressure plate 2.

[0034] When the pressure plate 2 needs to be removed, the magnetic part is moved to the vicinity of the large end of the conical groove 21. The magnetic part can magnetically adsorb the retaining sleeve 3 made of ferromagnetic material, so that the retaining sleeve 3 overcomes the elastic force of the elastic part 5 and moves toward 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 free 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 becomes larger, so that the steel ball 4 can move along the radial direction of the retaining sleeve 3. In this way, the squeezing effect of the steel ball 4 on the locking pin 10 disappears, and the steel ball 4 is in an unlocked state. At this time, the locking pin 10 is free from the squeezing effect of the steel ball 4, so that the pressure plate 2 can be removed from the base plate 1.

[0035] See also Figure 8 , Fig. 9The retaining sleeve 3 is coaxially arranged with the conical groove 21. The end of the retaining sleeve 3 away from the steel ball 4 is convexly provided with a plurality of limiting portions 32 along the axial direction. The pressing plate 2 is provided with a plurality of limiting grooves 22. One limiting groove 22 corresponds to one limiting portion 32. The limiting portion 32 can slide through the corresponding limiting groove 22 along the axial direction of the retaining sleeve 3. When the retaining frame 3 moves under the elastic force of the elastic member 5 or under the magnetic force of the magnetic member, the limiting portion 32 slides along the axial direction of the retaining sleeve 3 relative to the limiting groove 22. The matching relationship between the limiting groove 22 and the limiting portion 32 ensures that the retaining sleeve 3 can only move along the axial direction of the conical groove 21, but cannot rotate relative to the pressing plate 2, thereby ensuring the stability and reliability of the steel ball 4 when locking the locking pin 10.

[0036] In this embodiment, the retaining sleeve 3 is generally in the shape of a hollow cylinder, and the limiting portion 32 is convexly arranged on the outer side wall of one end of the retaining sleeve 3. The limiting portion 32 is an arc-shaped plate-shaped structure, and the outer arc surfaces of multiple limiting portions 32 are on the same circumference. The pressure plate 2 is provided with a receiving groove 23 connected to 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 portion 32 extends into the receiving groove 23, and the side wall of the limiting portion 32 close to the steel ball 4 can abut against the bottom wall of the 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, and the limiting portion 32 abuts against the bottom wall of the groove 23, which plays a good positioning role for the retaining sleeve 3. Furthermore, the limiting portion 32 and the retaining sleeve 3 are an integrally formed structure and are both made of ferromagnetic material, which is convenient for production and also helps the enterprise to control production costs.

[0037] A hollow conical structure is formed on one end of the retaining sleeve 3 close to the bottom plate 1, a notch 31 is provided on the conical structure, a steel ball 4 is installed on the conical structure, and the conical structure matches the conical groove 21. In this embodiment, there are three notches 31, which are evenly arranged along the circumference of the retaining sleeve 3. Correspondingly, there are also three steel balls 4. The three steel balls 4 jointly press and fix the locking pin 10, ensuring that the locking pin 10 is subjected to balanced force, preventing the locking pin 10 from deforming, and making it more reliable to use. In addition, a through hole (not shown) for inserting the locking pin 10 into the retaining sleeve 3 is provided at the center of one end of the conical structure close to the small end of the conical groove 21 and at one end of the pressing plate 2 located at the small end of the conical groove 21.

[0038] See also Fig.10 , Fig.11As a preferred embodiment, a support portion 33 is provided on the inner wall of the retaining sleeve 3 on the side of the small end of the steel ball 4 away from the conical groove 21 along the radial direction of the retaining sleeve 3, and the elastic member 5 is installed in the cavity of the retaining sleeve 3, one end of the elastic member 5 is elastically abutted against the support portion 33, and the other end of the elastic member 5 is elastically abutted against the pressure plate 2. In this embodiment, the elastic member 5 is a spring. It can be understood that in other embodiments not shown, the elastic member 5 can also be a rigid and elastic element such as a stainless steel shrapnel or a copper shrapnel, which is not limited here. In this embodiment, the support portion 33 is a plate-like structure, and has three supports. The three support portions 33 are evenly arranged on the inner wall of the retaining sleeve 3 along the circumferential direction.

[0039] In order to prevent the steel ball 4 from wearing the groove wall of the tapered groove 21 when it moves and locks the locking pin 10, a wear-resistant sleeve 24 is fixedly installed on the groove wall of the tapered groove 21. The wear-resistant sleeve 24 is a tapered sleeve, and the steel ball 4 can abut against the wear-resistant sleeve 24 after passing through the notch 31. The wear-resistant sleeve 24 is made of steel or copper to enhance the wear resistance of the wear-resistant sleeve 24. When the wear-resistant sleeve 24 is severely worn due to long-term use, it only needs to be replaced with a new one, without replacing the entire pressure plate 2, thereby avoiding material waste and reducing production costs.

[0040] See also Figure 8 , Fig.12 and Fig.13 In this embodiment, the pressing plate 2 includes a pressing plate body 210 and a pressing cover 220, a conical groove 21 is provided on the pressing plate body 210, a retaining sleeve 3 is movably mounted on the pressing cover 220, and the pressing cover 220 is detachably mounted on the pressing plate body 210 corresponding to the conical groove 21. During installation, the retaining sleeve 3 with the steel ball 4 is first mounted on the pressing cover 220, and then the pressing cover 220 is fixedly mounted on the pressing plate body 210. The pressing plate 2 is designed as a split structure of the pressing cover 220 and the pressing plate body 210, which facilitates the installation of the retaining sleeve 3. In addition, the pressing cover 220 and the pressing plate body 210 are fixedly connected by bolts.

[0041] As a preferred embodiment, the base plate 1 and the pressure plate 2 are both roughly rectangular plate-shaped structures, a locking pin 10 is provided at the four corners of the base plate 1, and a retaining sleeve 3 is correspondingly provided at the four corners of the pressure plate 2. In this way, the base plate 1 and the pressure plate 2 can be docked at multiple positions at the same time, which improves the connection stability between the two and improves the reliability of the clamping product 100.

[0042] See also Figure 1 , Figure 2The present invention also provides a chip flipping device, including the above-mentioned self-locking tooling for chip sintering, and also includes a support frame 6, an unlocking component 7, a flipping component 8 and a lifting component 9, wherein the unlocking component 7 is installed on the support frame 6, and the flipping component 8 can move longitudinally under the action of the lifting component 9, and the base plate 1 on the self-locking tooling for chip sintering is fixedly installed on the flipping component 8.

[0043] The support frame 6 is roughly a quadrilateral frame structure, and the unlocking component 7 includes a support frame 71, a cantilever 72 and a magnetic member 73. The support frame 71 is fixedly mounted on the support frame 6, and the cantilever 72 is movably arranged on the support frame 71 along the horizontal direction. The magnetic member 73 is fixedly mounted on the cantilever 72 and is located above the pressure plate 2. The retaining sleeve 3 can move under the magnetic adsorption action of the magnetic member 73 to overcome the elastic force of the elastic member 5, thereby switching the steel ball 4 from a locked state to an unlocked state, so that the pressure plate 2 can be removed after the product 100 is sintered.

[0044] When unlocking, firstly rotate the self-locking tooling for chip sintering on it to the position where the pressing plate 2 is at the top through the flip assembly 8, then drive the magnetic part 73 to move synchronously by horizontally moving the cantilever 72, and move the magnetic part 73 from the waiting position to the top of the holding sleeve 3, then, grasp and fix the pressing plate 2 by the manipulator, and keep the pressing plate 2 always in a static state, then, under the drive of the jacking assembly 9, the pressing plate 2 is moved upward and gradually approaches the magnetic part 73 (the manipulator moves synchronously with the pressing plate 2), when it moves to a certain height from the magnetic part 73, the holding sleeve 3 will be magnetically attracted by the magnetic part 73 and move upward, thereby switching the steel ball 4 from the locked state to the unlocked state, at this time, control the jacking assembly 9 to move the bottom plate 1 downward, so that the bottom plate 1 and the pressing plate 2 can be separated. Then, the cantilever 72 and the magnetic part 73 are reset together and return to the waiting position, and the manipulator takes away the removed pressing plate 2.

[0045] In this embodiment, a mounting groove (not shown) is provided on the cantilever 72, and the magnetic member 73 is fixedly installed in the mounting groove, so that the cantilever 72 is covered on the outside of the magnetic member 73. The magnetic member 73 is a strong magnet, and the magnetic force generated by it can pass through the cantilever 72 to magnetically adsorb the retaining sleeve 3. As a preferred embodiment, the magnetic member 73 is not formed by a whole magnet, but a magnet formed by a plurality of small magnets arranged in a Haier shell array. This magnet structure can make a small number of magnets generate a sufficiently strong unilateral magnetic field, which is conducive to the magnetic member 73 magnetically adsorbing the retaining sleeve 3.

[0046] The support frame 71 is roughly a T-shaped structure, and the cantilever 72 can be connected to the support frame 71 through a driving structure of a cylinder or a screw transmission mechanism to achieve the horizontal movement of the cantilever 72 relative to the support frame 71. The specific driving method is not limited here. In this embodiment, the cantilever 72 is a long strip structure and has two magnetic parts 72 arranged parallel to each other. The two cantilevers 72 are moved by independent driving structures respectively, so that the movement of the two magnetic parts 73 will not affect each other, so as to ensure that the magnetic part 73 can accurately move to the top of the retaining sleeve 3 at different positions.

[0047] The retaining sleeve 3 is made of a conductive material, and the cantilever 72 is made of a conductive material, such as a carbon steel material, which is also conductive. Wires are connected to the two cantilevers 72, and the two wires are connected to the same circuit and are respectively connected to the positive and negative poles of the power supply. When the retaining sleeves 3 on the opposite sides are successfully adsorbed by the magnetic member 73, the retaining sleeves 3 are in contact with the cantilever 72, and the circuit where the wires are located is in a conducting state. At this time, the current in the circuit is transmitted to the retaining sleeve 3 on one side through one of the cantilevers 72, and further transmitted to the pressure plate 2, and then transmitted to the retaining sleeve 3 on the other side, and further transmitted to the other cantilever 72. Therefore, the ammeter set in the circuit will indicate a reading (for example, the current size is 4mA), indicating that the tripping is successful, that is, the steel ball 4 is unlocked successfully. At this time, the lifting assembly 9 can be controlled to drive the base plate 1 to move downward to separate the pressure plate 2 and the base plate 1. When at least one side 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 have any indication, indicating that the release is unsuccessful. At this time, the lifting assembly 9 will not drive the base plate 1 to move downward.

[0048] See also Figure 3-Figure 6 In this embodiment, the chip flipping device further includes a connecting mechanism 11, and the flipping assembly 8 and the base plate 1 on the tooling are detachably connected via the connecting mechanism 11. Specifically, the connecting mechanism 11 includes a fixed seat 111, a two-way cylinder 112, a wedge-shaped pressure block 113 and a trapezoidal stopper 114. The fixed seat 111 is installed on the flip assembly 8, and the two-way cylinder 112 is installed on the fixed seat 111. The wedge block 113 has two and is relatively connected to the two output ends of the two-way cylinder 112. The trapezoidal stopper 114 is fixedly installed on the base plate 1 and clamped between the two wedge blocks 113. The cross-section of the trapezoidal stopper 114 is a trapezoidal structure. The side of the trapezoidal stopper 114 corresponding to the lower bottom of the trapezoidal structure is close to the flip assembly 8. The inclined wedge surfaces on the two wedge-shaped pressure blocks 113 are respectively matched with the two opposite inclined surfaces on the trapezoidal stopper 114. The base plate 1 is detachably connected to the fixed seat 111. Between the connecting surfaces between the fixed seat 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 matches the positioning protrusion 1111.

[0049] When the self-locking tooling for chip sintering is installed on the flip assembly 8, the positioning protrusion 1111 is first aligned with the positioning groove 1112, and then the bottom plate 1 is placed on the fixed seat 111. At this time, the trapezoidal stopper 114 is between the two wedge blocks 113. Then, the two-way cylinder 112 is started to drive the two wedge blocks 113 to approach each other, so that the trapezoidal stopper 114 is squeezed between the two wedge blocks 113. During installation, the cooperation between the positioning protrusion 1111 and the positioning groove 1112 plays a good positioning role in the installation of the bottom plate 1, and also prevents the bottom plate 1 from moving relative to the fixed seat 111 in the horizontal direction. Then, the wedge block 113 squeezes the trapezoidal stopper 114, effectively preventing the bottom plate 1 from moving relative to the fixed seat 111 in the vertical direction. In this way, the setting of the connecting mechanism 11 can stably lock the bottom plate 1 on the fixed seat 111.

[0050] With the structure of the above design, when replacing different tooling, it is only necessary to ensure that the trapezoidal stopper 114 and the positioning protrusion 1111 (or the positioning groove 1112) provided on the base plate 1 cooperate with the corresponding structure on the fixing seat 111. There is no need to consider the width of the tooling, and there is no need to replace the fixing seat 111. While reducing the waste of resources, the same fixing seat 111 can be compatible with a variety of self-locking tooling for chip sintering, and has strong versatility.

[0051] In this embodiment, the positioning protrusion 1111 is fixedly mounted on the fixing seat 111, and the positioning groove 1112 is provided on the base plate 1. As a preferred embodiment, the positioning protrusion 1111 is a circular positioning column, and the positioning groove 1112 is a circular through hole. In order to prevent the positioning protrusion 1111 from rotating relative to the positioning groove 1112 in the horizontal plane, the positioning protrusion 1111 and the positioning groove 1112 are both provided in two, and one positioning protrusion 1111 is correspondingly connected to one positioning groove 1112. At the same time, the two positioning protrusions 1111 are symmetrically located on opposite sides of the trapezoidal stopper 114 to ensure stable positioning. It should be noted that the two positioning protrusions 1111 are provided on the same side of the fixing seat 111, because when replacing the base plate 1, it is not necessary to consider the width of the base plate 1, and it is only necessary to ensure that the structure on one side of the base plate 1 cooperates with the corresponding structure on the fixing seat 111.

[0052] In other embodiments not shown, the positioning protrusion 1111 may also be a non-circular columnar structure such as a polygonal or elliptical cross-section. In this case, there may be only one positioning protrusion 1111, which can prevent the bottom plate 1 from rotating relative to the fixing seat 111 while achieving positioning. In addition, the positioning protrusion 1111 may also be provided on the bottom plate 1, and the positioning groove 1112 may be provided on the fixing seat 111, which is not limited here.

[0053] As a preferred embodiment, an anti-wear sleeve 1113 is fixedly installed in the positioning groove 1112. The anti-wear sleeve 1113 is a sleeve-shaped structure with two ends penetrating. 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 material to enhance the wear resistance of the anti-wear sleeve 1113. In addition, the chamfer is provided to facilitate the smooth insertion of the positioning protrusion 1111 into the anti-wear sleeve 1113.

[0054] As a preferred embodiment, a through groove 12 is opened on the base plate 1, and the part of the base plate 1 located between the two through grooves 12 forms a connecting plate 13, and the connecting plate 13 is in contact with the surface of the fixing seat 111 for installing the positioning protrusion 1111, and the trapezoidal stopper 114 is fixedly installed on the surface of the connecting plate 13 away from the fixing seat 111, and the wedge-shaped pressure block 113 can movably pass through the through groove 12.

[0055] Please refer again Figure 1 The flip 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. The turntable 83 is rotatable relative to the rotating cradle 82. The fixing base 111 is fixedly connected to the turntable 83. In this embodiment, a first motor 84 is installed on the base 81, and the first motor 84 is used to drive the rotating cradle 82 to rotate. A second motor 85 is installed on the rotating cradle 82, and the second motor 85 is used to drive the turntable 83 to rotate.

[0056] The lifting assembly 9 is used to drive the base 81 to move longitudinally, so as to drive the self-locking tooling for chip sintering to move 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 the present invention also includes a frame (not shown), and the support frame 6 and the lifting assembly 9 are fixedly mounted on the frame.

[0057] Please note that Figure 6 In this embodiment, locking blocks 14 are fixedly connected at the four corners of the base plate 1. The locking blocks 14 are rectangular block structures. Two locking pins 10 are fixedly installed on each locking block 14. One locking pin 10 is arranged on the surface of the locking block 14 away from the base plate 1, and the other locking block 14 is arranged on the outer wall of the locking block 14. In this way, during the specific implementation, the user can set multiple pressing plates 2 around the product 100 as needed, and press and fix the product 100 from different directions, so as to meet the sintering requirements for multiple surfaces of the product 100.

[0058] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the scope of the present invention through the above description. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A self-locking tool for chip sintering, characterized in that: The invention comprises a bottom plate and a pressure plate, wherein a locking pin is arranged on the bottom plate, a conical groove is provided on the pressure plate along the axial direction of the locking pin, a retaining sleeve is movably provided in the conical groove along the axial direction of the locking pin, the retaining sleeve is made of ferromagnetic material, a plurality of steel balls are provided in the small mouth end of the conical groove on the retaining sleeve, the steel balls are movable in the radial direction of the retaining sleeve, a notch is provided on the side wall of the retaining sleeve corresponding to the steel balls, an elastic member is telescopically provided between the retaining sleeve and the pressure plate along the movable direction of the retaining sleeve, the locking pin is inserted into the conical groove, a plurality of steel balls are arranged around the outside of the locking pin, the steel balls can be tightly held against the locking pin under the elastic force of the elastic member, or can be separated from the locking pin when the magnetic member of the retaining sleeve cup is attracted and moved.

2. The self-locking tool for chip sintering according to claim 1, characterized in that: The retaining sleeve is coaxially arranged with the conical groove, and a plurality of limiting portions are axially protruded on one end of the retaining sleeve away from the steel ball, and a plurality of limiting grooves are formed on the pressure plate, one limiting groove corresponds to one limiting portion, and the limiting portion can slidably pass through the corresponding limiting groove along the axial direction of the retaining sleeve.

3. The self-locking tool for chip sintering according to claim 2, characterized in that: The limiting portion is protruded on the outer side wall of one end of the retaining sleeve, and is an arc-shaped plate-like structure. The outer arc surfaces of the plurality of limiting portions are on the same circumference. The pressure plate is provided with a receiving groove connected to the large mouth end of the conical groove. The limiting portion extends into the receiving groove, and the side wall of the limiting portion close to the steel ball can be abutted against the bottom wall of the receiving groove.

4. The self-locking tool for chip sintering according to claim 1, characterized in that: A hollow conical structure is formed on one end of the retaining sleeve close to the bottom plate, the notch is arranged on the conical structure, the steel ball is installed on the conical structure, and the conical structure matches the conical groove.

5. The self-locking tool for chip sintering according to claim 4, characterized in that: A support portion is provided on the inner wall of the retaining sleeve at one side of the small end of the steel ball away from the conical groove and protrudes radially along the retaining sleeve. The elastic member is installed in the cavity of the retaining sleeve. One end of the elastic member is elastically abutted against the support portion, and the other end of the elastic member is elastically abutted against the pressure plate.

6. The self-locking tool for chip sintering according to claim 1, characterized in that: A wear-resistant sleeve is fixedly mounted on the groove wall of the conical groove, and the wear-resistant sleeve is a conical sleeve. The steel ball can abut against the wear-resistant sleeve after passing through the groove.

7. The self-locking tool for chip sintering according to claim 1, characterized in that: The pressing plate comprises a pressing plate body and a pressing cover, the conical groove is arranged on the pressing plate body, the retaining sleeve is movably mounted on the pressing cover, and the pressing cover is detachably mounted on the pressing plate body corresponding to the conical groove.

8. A chip flipping device, characterized in that: The self-locking tooling for chip sintering comprises the self-locking tooling for chip sintering as described in any one of claims 1 to 7, and also comprises a support frame and an unlocking assembly, wherein the unlocking assembly comprises a support frame, a cantilever and a magnetic member, wherein the support frame is fixedly mounted on the support frame, the cantilever is movably arranged on the support frame along a horizontal direction, the magnetic member is fixedly mounted on the cantilever and is located above the pressure plate, and the retaining sleeve can move by overcoming the elastic force of the elastic member under the magnetic adsorption action of the magnetic member.

9. The chip flipping device according to claim 8, characterized in that: The retaining sleeve and the cantilever are both made of conductive materials, and the two cantilevers are connected to wires. The two wires are connected to the same circuit with an ammeter and are respectively connected to the positive and negative poles of the power supply. The retaining sleeve contacts the cantilever when being adsorbed by the magnetic part.

10. The chip flipping device according to claim 8, characterized in that: The chip flipping device also includes a flipping assembly and a lifting assembly. The flipping assembly includes a base, a rotating cradle and a turntable. The rotating cradle is rotatable relative to the base, and the turntable is rotatable relative to the rotating cradle. The self-locking tooling for chip sintering is installed on the base, and the base is connected to the lifting assembly.

Images