Part placing jig
By designing a ornament fixture containing preset spacing profiling holes and strip-through grooves, the problem of complex and inefficient artificial ornaments in the MIM process is solved, and the rapid and accurate placement and connection of parts are achieved, and the production is improved Efficiency and product quality.
Patent Information
- Application Number
- CN202411739675.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-18
AI Technical Summary
In the metal injection molding MIM process, the artificial ornament process is complex and time-consuming, resulting in low production efficiency and difficult to guarantee product quality.
Design a ornament fixture, including positioning cover plates and profiling holes, with pre-spaced and shaped to fit the parts, allowing the parts to pass through the front, and simplifying the parts through structures such as strip slots and pressing plates. Placement and connection process.
Through this ornament fixture, the efficiency of ornament and product yield are significantly improved, the correct direction and spacing of parts in the ornament process are ensured, manual operation is simplified, and production efficiency and product quality are improved.
Smart Images
Figure CN119457062A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of metal powder injection, and in particular to an ornament fixture. Background Art
[0002] Metal Injection Molding (MIM) is a molding method that injects a plasticized mixture of metal powder and its binder into a model. It first mixes the selected powder with the binder, then granulates the mixture and injects it into the required shape. After molding, the binder is removed and the degreased blank is sintered to combine the metal powder particles and eliminate pores to ensure that the parts reach the designed size and high performance. This process technology is suitable for mass production of small, precise, three-dimensional complex and special performance metal parts. However, in the MIM process, ornaments are an indispensable process. The main content is to neatly place the products on various media. They are used in MIM degreasing, extraction, sintering and other processes.
[0003] In the related art, a MIM part needs to be sintered. Before the sintering process, multiple parts need to be manually strung together using porcelain rods, and then placed together in the part limiting grooves on the sintering plate and the spacing between the parts is adjusted to make them evenly spaced before the sintering process can be carried out.
[0004] When making artificial ornaments, due to the irregular shapes and small size of the parts, it is necessary to distinguish the front and back when connecting the parts, and it is difficult and time-consuming to adjust the spacing between the parts, resulting in low parts production efficiency and difficulty in ensuring product quality. Summary of the invention
[0005] In order to simplify the steps of ornament making and improve production efficiency and product quality, the present application provides an ornament fixture.
[0006] The present application provides a fixture for ornaments that adopts the following technical solution: A jig for ornaments comprises a positioning cover plate covered on a sintering plate, the positioning cover plate being provided with a plurality of profiling holes penetrating the positioning cover plate and having preset intervals, the profiling holes being provided for parts to pass through and then be snapped into a part limiting groove of the sintering plate, the shape of the profiling holes being adapted to the shape of the parts so that the parts can only pass through the profiling holes from the front, a strip-through groove being provided on the side of the positioning cover plate for allowing a porcelain strip to pass through, the strip-through groove being parallel to the part limiting groove and the bottom of the strip-through groove being connected to the profiling hole.
[0007] By adopting the above technical scheme, contoured holes with preset intervals are opened on the positioning cover plate, which can assist manual rapid placement of parts, eliminating the need to adjust the spacing between each product when placing parts, improving the efficiency of placement and the yield rate of products, and being able to more accurately calculate the number of sintered parts in a furnace; the shape of the contoured holes is adapted to the parts so that the parts can only pass through from the front side, ensuring the correct direction of the parts during the placement process, simplifying the operation of distinguishing the front and back sides of the parts when manually placing parts, and improving the accuracy and efficiency of part placement as well as product quality; the strip-threading groove design on the side of the positioning cover plate allows the porcelain strip to pass through smoothly, facilitating the series connection of parts, further simplifying the steps of stringing parts, and improving production efficiency.
[0008] Optionally, the inner wall of the contoured hole can abut against a side of the part away from the sintering plate to limit the movement of the part along the direction of the part limiting groove.
[0009] By adopting the above technical solution, the inner wall of the contoured hole can be tightly abutted against the side of the part away from the sintering plate, thereby effectively limiting the movement of the part in the direction of the part limiting groove, ensuring the stable position of the part during the stringing process, and improving the production efficiency and quality of the product.
[0010] Optionally, a chamfered structure is provided at the opening of the contoured hole away from the sintering plate.
[0011] By adopting the above technical solution, it is possible to facilitate the alignment of parts and smoothly enter the contoured hole, reduce the jamming of parts during the insertion process, and thus improve the efficiency of the ornaments.
[0012] Optionally, the positioning cover plate is provided with a first positioning pin for cooperating with the first positioning hole on the sintering plate.
[0013] By adopting the above technical solution, the first positioning pin arranged on the positioning cover plate can precisely cooperate with the first positioning hole on the sintering plate, thereby realizing the position fixation of the ornament fixture relative to the sintering plate, improving the stability and repeatability of the ornament process, avoiding product quality problems caused by position deviation, and significantly improving the product qualification rate.
[0014] Optionally, the feed port of the profiling hole is provided with a guide cavity, and the guide cavity is flared for placing parts therein, and the ornament fixture also includes a pressing plate and a press head assembly arranged in the pressing plate, and the press head assembly corresponds to the profiling hole one by one; wherein, a part back side detachment assembly is provided between the press head assembly and the pressing plate, and when the pressing plate is close to the positioning cover plate, the press head assembly can press the part with the front side of the guide cavity facing the profiling hole into the part limiting groove, and when the pressure of the press head assembly on the part is greater than a preset value, the press head assembly can be detached from the pressing plate through the part back side detachment assembly.
[0015] By adopting the above technical scheme, the profiling hole of the guide cavity is provided, which can facilitate the alignment of the parts and the smooth entry into the profiling hole, reduce the jamming phenomenon of the parts during the insertion process, and thus improve the efficiency of the placement of the parts; the cooperation between the pressing plate and the pressing head assembly enables the parts to be accurately pressed into the part limiting groove, preventing the parts from not completely falling into the part limiting groove and getting stuck when entering the profiling hole due to the close contact between the parts and the profiling hole; the part reverse side detachment assembly between the pressing head assembly and the pressing plate can automatically detach the pressing head assembly from the pressing plate when the downward force when pressing the part exceeds a preset value, avoiding the damage of the parts when the parts are placed upside down in the guide cavity during the placement of the parts, and can remind the workers that the parts at this position are placed incorrectly and the direction of the parts needs to be further adjusted, thereby improving the production efficiency and quality of the parts.
[0016] Optionally, the pressing head assembly includes a pressing pin, the pressing plate is provided with a through hole for the pressing pin to slide through, the part reverse side detachment assembly is arranged on the inner wall of the through hole, and the side wall of the pressing pin is provided with a slot for the part reverse side detachment assembly to abut against, when the force acting on the pressing pin is greater than a preset value, the pressing pin detaches from the part reverse side detachment assembly and pops out from the orifice of the through hole.
[0017] By adopting the above technical solution, the pressing pin can effectively press the part with the front side of the guide cavity facing the contour hole into the part limit groove during the pressing process, thereby improving the accuracy of part placement. When the force applied to the pressing pin is greater than the preset value, the back side of the part can disengage the pressing pin from the pressing plate and pop out from the through hole in time, thereby avoiding damage to the part due to excessive pressing pressure, and can remind the worker that the part at this position is incorrectly placed and needs to further adjust the direction of the part, thereby effectively improving the yield rate and production efficiency of the part.
[0018] Optionally, the back side detachment assembly of the part includes a mounting portion and an elastic portion, the inner wall of the pressing plate is provided with a mounting groove for the mounting portion to be snapped into, the elastic portion is connected to one side of the mounting portion and extends and bends into a triangular shape, and the outer corner side of the elastic portion is snapped into the slot.
[0019] By adopting the above technical scheme, the mounting portion is clamped in the mounting groove inside so that the reverse side detachment assembly of the part can be effectively fixed, and this design can make the replacement of the reverse side detachment assembly of the part simple and quick; the outer corner side of the elastic portion is clamped in the clamping groove so that when the pressing pin presses the part normally, it can prevent the pressing pin from sliding in the through hole, and when the force applied to the pressing pin from the part is greater than a preset value, the elastic portion is deformed by the force so that the outer corner side of the elastic portion is detached from the clamping groove, and the reverse side detachment assembly can be smoothly ejected from the orifice of the through hole.
[0020] Optionally, an opening is provided between a side edge of the elastic portion facing away from the sintering plate and the mounting portion.
[0021] By adopting the above technical solution, the opening between the elastic part and the mounting part can provide space when the elastic part is deformed under force, thereby avoiding irreversible deformation or damage of the elastic part due to excessive force, ensuring the stability and reliability of the back side of the part detaching from the assembly, and thus improving the overall service life of the ornament fixture.
[0022] Optionally, the mounting portion can be detachably connected to the inner wall of the through hole along a direction perpendicular to the inner wall of the through hole.
[0023] By adopting the above technical solution, it is easy to replace and repair the components on the back side of the parts, thereby improving the maintenance efficiency and service life of the ornament fixture.
[0024] Optionally, a second positioning hole is formed on the positioning cover plate, and a second positioning pin cooperating with the second positioning hole is formed on the pressing plate.
[0025] By adopting the above technical solution, the second positioning hole opened on the positioning cover plate cooperates with the second positioning pin on the pressing plate to achieve precise positioning of the pressing plate relative to the positioning cover plate, avoiding misalignment or damage of parts due to position deviation during the pressing process, thereby improving the overall practicality of the ornament fixture.
[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The positioning cover is provided with contour holes with preset intervals, which can assist manual rapid placement of parts, eliminating the need to adjust the spacing between each product when placing parts, improving the efficiency of placement and the yield rate of products, and being able to more accurately calculate the number of sintered parts in a furnace; the shape of the contour holes is adapted to the parts so that the parts can only pass through from the front side, ensuring the correct direction of the parts during the placement process, simplifying the operation of distinguishing the front and back sides of the parts when placing parts manually, and improving the accuracy and efficiency of part placement as well as product quality; the strip-through slot design on the side of the positioning cover allows the porcelain strip to pass through smoothly, facilitating the serial connection of parts, further simplifying the steps of serial connection, and improving production efficiency; 2. The profiling hole of the guide cavity can facilitate the alignment of the parts and their smooth entry into the profiling hole, reduce the jamming of the parts during the insertion process, and thus improve the efficiency of the placement of parts; the cooperation between the pressing plate and the pressing head assembly enables the parts to be accurately pressed into the part limiting groove, preventing the parts from not completely falling into the part limiting groove and getting stuck when entering the profiling hole due to the close contact between the parts and the profiling hole; the reverse side separation assembly of the parts between the pressing head assembly and the pressing plate can automatically separate the pressing head assembly from the pressing plate when the downward force exceeds the preset value when pressing down the parts, avoiding the damage of the parts when the parts are placed upside down in the guide cavity during the placement of the parts, and can remind the workers that the parts at this position are placed incorrectly and the direction of the parts needs to be further adjusted, thereby improving the production efficiency and quality of the parts; 3. The mounting portion is clamped in the mounting groove so that the reverse detachment assembly of the part can be effectively fixed, and this design makes it easy and quick to replace the reverse detachment assembly of the part; the outer corner side of the elastic portion is clamped in the clamping groove so that when the pressing pin presses the part normally, it can prevent the pressing pin from sliding in the through hole, and when the force applied to the pressing pin from the part is greater than the preset value, the elastic portion is deformed by the force so that the outer corner side of the elastic portion is separated from the clamping groove, and the reverse detachment assembly can be ejected smoothly from the opening of the through hole; 4. The opening between the elastic part and the mounting part can provide space when the elastic part is deformed under stress, thereby preventing the elastic part from being irreversibly deformed or damaged due to excessive stress, ensuring the stability and reliability of the back side of the part being separated from the assembly, and thereby improving the overall service life of the ornament fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.
[0028] Figure 2 It is a schematic diagram of the internal structure of Example 1 of the present application.
[0029] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application.
[0030] Figure 4 It is a schematic diagram of the internal structure of Example 2 of the present application.
[0031] Figure 5 yes Figure 4 A partial enlarged view of part A.
[0032] Figure 6 It mainly shows the pressure head assembly and the back side separation assembly of the parts in Example 2.
[0033] Explanation of the reference numerals: 100, sintering plate; 200, first positioning hole; 300, part limiting groove; 400, ceramic strip; 1, positioning cover plate; 11, second positioning hole; 2, contour hole; 3, strip-threading groove; 4, first positioning pin; 5, guide cavity; 6, pressing plate; 61, through hole; 62, mounting groove; 63, second positioning pin; 7, pressing head assembly; 71, pressing pin; 711, slot; 8, part back side detachment assembly; 81, mounting portion; 82, elastic portion; 9, elastic gasket. DETAILED DESCRIPTION
[0034] The following is combined with Figure 1-6 This application is described in further detail.
[0035] The embodiment of the present application discloses an ornament fixture.
[0036] Example 1 Reference Figure 1 and Figure 2 In this embodiment, the ornament fixture includes a positioning cover plate 1 covering the sintering plate 100. The positioning cover plate 1 is made of high-strength aluminum alloy and its overall appearance is similar to the overall structure of the sintering plate 100. The side of the positioning cover plate 1 that contacts the sintering plate 100 has good flatness to ensure that it can fit closely with the sintering plate 100. The side of the positioning cover plate 1 that is away from the sintering plate 100 is provided with a plurality of rows of profile holes 2 with preset intervals and penetrating the side of the positioning cover plate 1 close to the sintering plate 100. Among them, the preset intervals can be uniform intervals or other intervals designed according to requirements. The profile holes 2 can be used for parts to pass through and then be clamped into the part limiting groove 300 of the sintering plate 100. The shape of the profile holes 2 is adapted to the shape of the parts so that the parts can only pass through the profile holes 2 from the front. The hole wall of the profile holes 2 has good finish to ensure that the parts can pass smoothly.
[0037] The side of the positioning cover plate 1 is provided with a profiling hole 2 to allow the ceramic strip 400 to pass through the strip-through groove 3. The number of rows of the strip-through groove 3 corresponds to the number of rows of the profiling hole 2. The width of the strip-through groove 3 is slightly larger than the width of the ceramic strip 400 to ensure that the ceramic strip 400 can be easily inserted into the notch of the strip-through groove 3. The strip-through groove 3 is parallel to the part limiting groove 300 and the bottom of the strip-through groove 3 is connected to the profiling hole 2. In other embodiments, the positioning cover plate 1 can also be made of wear-resistant materials such as steel or ceramics; the shape of the profiling hole 2 may not match the part; the width of the strip-through groove 3 may be the same as the width of the ceramic strip 400, and a chamfered structure is provided at the notch of the strip-through groove 3.
[0038] Reference Figure 1 and Figure 2 In this embodiment, the inner wall of the profiling hole 2 abuts against the side of the part away from the sintering plate 100 to limit the movement of the part along the extension direction of the part limiting groove 300, and the two do not interfere with the ceramic strip 400 when abutting, and the ceramic strip 400 can pass through the part smoothly; the profiling hole 2 is provided with a chamfered structure at the opening away from the sintering plate 100 to facilitate the alignment of the part and smoothly enter the hole profiling; the outer ring of the positioning cover plate 1 close to the sintering plate 100 is provided with a cylindrical first positioning pin 4 that cooperates with the first positioning hole 200 on the sintering plate 100, the number of the first positioning pins 4 is four, and the first positioning pin 4 and the positioning cover plate 1 are an integrated structure.
[0039] In other embodiments, the positioning cover plate 1 is provided with a protrusion abutting against the side of the part away from the sintering plate 100 at the opening of the profiling hole 2 close to the sintering plate 100, so as to limit the movement of the part along the direction of the part limiting groove 300; a circle of flared thin-walled structure is provided at the opening of the profiling hole 2 away from the sintering plate 100 to facilitate the alignment of the part and smooth entry into the profiling hole 2; the number of the first positioning pins 4 can be two or three, and the shape can be a polygonal column; four positioning blocks abutting against the four sides of the sintering plate 100 can be provided on the positioning cover plate 1 to ensure the positioning between the sintering plate 100.
[0040] The implementation principle of Example 1 is as follows: by setting a positioning cover plate 1 on the sintering plate 100, and opening a plurality of rows of contour holes 2 with preset spacing and shapes matching the shapes of the parts on the positioning cover plate 1, when placing the parts, the parts are placed forwardly into the contour holes 2 and then fall into the limiting grooves of the sintering plate 100. The contour holes 2 ensure that the placement direction and spacing of the parts are correct. After the parts are placed, the ceramic strips 400 are used to penetrate the strip grooves 3 to connect all the parts in series at one time, and then the positioning cover plate 1 is removed to carry out the sintering process of the parts, so as to simplify the steps of placing the parts and improve the production efficiency and product quality.
[0041] Example 2 The difference between this embodiment and embodiment 1 is that: the positioning cover plate 1 is provided with a guide cavity 5 at the feed port of the contoured hole 2; the ornament fixture also includes a pressing plate 6, a pressing head assembly 7 and a part back side detachment assembly 8.
[0042] Reference Figure 3-Figure 5 In this embodiment, the feed port of the profiling hole 2 is provided with a guide cavity 5 connected to the profiling hole 2. The guide cavity 5 is flared and the inner wall thereof is smoothly transitioned to the inner wall of the profiling hole 2. The inner wall of the guide cavity 5 has good smoothness to ensure that the parts can smoothly pass through the guide cavity 5 and slide into the profiling hole 2.
[0043] Reference Figure 3-Figure 5 In the present embodiment, the pressing plate 6 is pressed onto the positioning cover plate 1, and the outer ring of the pressing plate 6 close to the positioning cover plate 1 is provided with four second positioning pins 63, and the four second positioning pins 63 respectively cooperate with the four second positioning holes 11 provided on the outer ring of the positioning cover plate 1 close to the pressing plate 6; preferably, the second positioning pins 63 and the pressing plate 6 are an integrated structure, and the pressing plate 6 is made of high-strength aluminum alloy as a whole, and the side in contact with the positioning cover plate 1 has good flatness to ensure that it can fit closely with the positioning cover plate 1.
[0044] The pressing plate 6 is provided with a pressing head assembly 7 corresponding to the profiling holes 2 one by one, and a part back side separation assembly 8 is provided between the pressing head assembly 7 and the pressing plate 6. When the pressing plate 6 is close to the positioning cover plate 1, the pressing head assembly 7 can press the part in the guide cavity 5 facing the profiling hole 2 into the part limiting groove 300. When the part in the guide cavity 5 is facing the profiling hole 2, and the pressure of the pressing head assembly 7 on the part is greater than the preset value, the pressing head assembly 7 can be separated from the pressing plate 6 through the part back side separation assembly 8. In other embodiments, the number of the second positioning pin 63 and the second positioning hole 11 can be one or three, and the shape can be polygonal; the pressing plate 6 can also be made of steel, ceramic or other wear-resistant materials.
[0045] Reference Figure 5 and Figure 6 The cam 71 is provided with a spring 72 which is provided at one end of the cam 71 and is in contact with the stopper 72. The cam 72 is provided with a spring 72 which is provided at one end of the cam 71 and is in contact with the stopper 72. The spring 72 is provided with a spring 72 which is provided at one end of the cam 71 and is in contact with the stopper 72.
[0046] In other embodiments, the overall appearance of the pressing pin 71 may be a cylinder or a columnar body having the same shape as the contoured hole 2; the elastic gasket 9 may be made of nylon; the part reverse side detachment component 8 may be arranged on the inner wall of the long side of the through hole 61, and the number of the part reverse side detachment components 8 may be one; the slot 711 may be opened on the side wall of the long side of the pressing pin 71, and the number of the slot 711 may be one; the opening of the through hole 61 away from the positioning cover plate 1 is chamfered.
[0047] Reference Figure 5 and Figure 6In this embodiment, the back side separation component 8 of the part is a spring buckle, which is made of spring steel to ensure that it has good elasticity and wear resistance. The spring buckle includes a mounting portion 81 and an elastic portion 82. The mounting portion 81 of the spring buckle has a U-shaped cross section. The inner wall of the through hole 61 on the pressing plate 6 is provided with a mounting groove 62 for the mounting portion 81 of the spring buckle to be clamped therein; the elastic portion 82 of the spring buckle is connected to one side of the mounting portion 81 and extends and bends in a triangular shape and is away from the sintering plate 10. There is an opening between one side edge of 0 and the mounting portion 81, and the outer corner side edge of the elastic portion 82 of the spring clip is clamped in the clamping groove 711 on the pressing pin 71. When the pressing pin 71 presses down the part and the reaction force of the part is greater than the maximum bending force that the elastic portion 82 of the spring clip can withstand, the mounting portion 81 bends and deforms toward the opening direction toward the mounting portion 81 to disengage from the clamping groove 711, loses the clamping connection with the pressing pin 71, and makes the pressing pin 71 pop out smoothly from the through hole 61 away from the opening of the positioning cover plate 1.
[0048] In other embodiments, the spring buckle may also be made of fiber reinforced plastic or engineering plastic; one side of the elastic portion 82 may be extended and bent into an arc shape.
[0049] Preferably, the mounting portion 81 of the spring clip can be detachably connected to the inner wall of the through hole 61 in a direction perpendicular to the inner wall of the through hole 61, so that the spring clip can be easily and quickly replaced when it is worn or damaged.
[0050] The advantages of Example 2 over Example 1 are as follows: the provision of the contoured hole 2 of the guide cavity 5 further improves the speed of placing the part into the contoured hole 2, thereby further improving the efficiency of the ornament; the cooperation of the pressing plate 6 and the pressing head assembly 7 enables the part to be accurately pressed into the part limiting groove 300, thereby further improving the production quality of the part; the provision of the part reverse side detachment assembly 8 can prompt the worker that the part at this position is incorrectly placed when pressing down the part placed upside down in the guide cavity 5, and the direction of the part needs to be further adjusted, thereby reducing the damage rate of the part when the ornament is placed.
[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A fixture for ornaments, characterized in that: The invention comprises a positioning cover plate (1) covering a sintering plate (100), wherein the positioning cover plate (1) is provided with a plurality of profiling holes (2) penetrating the positioning cover plate (1) and having a preset interval, wherein the profiling holes (2) allow a part to pass through the profiling holes and then be snapped into a part limiting groove (300) of the sintering plate (100), wherein the shape of the profiling holes (2) is adapted to the shape of the part so that the part can only pass through the profiling holes (2) from the front, and a strip-through groove (3) is provided on the side surface of the positioning cover plate (1) for allowing a porcelain strip (400) to pass through, wherein the strip-through groove (3) is parallel to the part limiting groove (300) and the groove bottom of the strip-through groove (3) is connected to the profiling hole (2).
2. The ornament fixture according to claim 1, characterized in that: The inner wall of the profiling hole (2) can abut against a side of the part away from the sintering plate (100) to limit the movement of the part along the direction of the part limiting groove (300).
3. The ornament fixture according to claim 1, characterized in that: A chamfered structure is provided at the hole opening of the profiling hole (2) facing away from the sintering plate (100).
4. The ornament fixture according to claim 1, characterized in that: The positioning cover plate (1) is provided with a first positioning pin (4) for cooperating with a first positioning hole (200) on the sintering plate (100).
5. The ornament fixture according to claim 1, characterized in that: The feed port of the profiling hole (2) is provided with a guide cavity (5), the guide cavity (5) is in an expanded shape for placing a part therein, the ornament fixture further comprises a pressing plate (6) and a pressing head assembly (7) arranged in the pressing plate (6), the pressing head assembly (7) corresponding one to one with the profiling hole (2); A part back side detachment assembly (8) is provided between the pressing head assembly (7) and the pressing plate (6); when the pressing plate (6) is close to the positioning cover plate (1), the pressing head assembly (7) can press the part with the front side facing the contour hole (2) at the guide cavity (5) into the part limiting groove (300); when the pressure of the pressing head assembly (7) on the part is greater than a preset value, the pressing head assembly (7) can be detached from the pressing plate (6) through the part back side detachment assembly (8).
6. The ornament fixture according to claim 5, characterized in that: The pressing head assembly (7) comprises a pressing pin (71); the pressing plate (6) is provided with a through hole (61) for the pressing pin (71) to slide through; the part back side detachment assembly (8) is arranged on the inner wall of the through hole (61); the side wall of the pressing pin (71) is provided with a slot (711) for the part back side detachment assembly (8) to abut against; when the force applied to the pressing pin (71) is greater than a preset value, the pressing pin (71) detaches from the part back side detachment assembly (8) and pops out from the opening of the through hole (61).
7. The ornament fixture according to claim 6, characterized in that: The part reverse side detachment assembly (8) comprises a mounting portion (81) and an elastic portion (82); the inner wall of the pressing plate (6) is provided with a mounting groove (62) for the mounting portion (81) to be snapped into; the elastic portion (82) is connected to one side of the mounting portion (81) and extends and bends to form a triangular shape; the outer corner side of the elastic portion (82) is snapped into the snap groove (711).
8. The ornament fixture according to claim 7, characterized in that: An opening is provided between a side edge of the elastic portion (82) facing away from the sintering plate (100) and the mounting portion (81).
9. The ornament fixture according to claim 7, characterized in that: The mounting portion (81) can be detachably connected to the inner wall of the through hole (61) in a direction perpendicular to the inner wall of the through hole (61).
10. The ornament fixture according to claim 5, characterized in that: The positioning cover plate (1) is provided with a second positioning hole (11), and the pressing plate (6) is provided with a second positioning pin (63) that cooperates with the second positioning hole (11).