Mold for preparing surface texture of stainless steel thin-wall part

Abstract

An upper die comprises an upper die base, an upper die base plate, an upper die main forming block, an upper die driving seat and an upper die plate, the upper die base plate is fixed to the upper die base, the upper die driving seat is fixedly mounted on the upper die base plate, the upper die main forming block is slidably mounted on the upper die plate, and the upper die main forming block is slidably mounted on the upper die plate. The inner walls of the upper die main forming blocks are arranged to be convex texture surfaces, the multiple upper die main forming blocks are arranged in the circumferential direction, a part cavity is defined by the multiple upper die main forming blocks, and the upper die driving base is matched with the outer walls of the upper die main forming blocks to drive the upper die main forming blocks to slide and contract; the lower mold comprises a lower mold base, a lower mold plate and a lower mold core, the lower mold plate is fixed to the lower mold base, the lower mold core is arranged in the vertical direction, the lower end of the lower mold core is fixed to the lower mold plate, the outer wall of the lower mold core is arranged to be a concave texture face, and the lower mold core is used for being placed in a part cavity. The device has the effect of improving the production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of mold production, and in particular to a mold for preparing surface textures of stainless steel thin-walled parts. Background Art

[0002] At present, the models used in infiltration production are made of glass blowing, such as the models for producing condoms. However, glass materials have poor thermal conductivity, slow heating and cooling processes, and brittle models, which are increasingly inconsistent with the development needs of enterprises. Therefore, condom models made of stainless steel metal materials came into being. Here, stainless steel condom models are called stainless steel thin-walled parts.

[0003] Regarding the above-mentioned related technologies, currently, single-point grinding is usually used to process concave textures on the surface of stainless steel thin-walled parts. However, there are hundreds of concave textures on the stainless steel thin-walled parts, and it usually takes 1-3 hours to manufacture. The production efficiency is low, and it is easy to have different depths and sizes, and the quality is not high. Therefore, there is room for improvement. Summary of the invention

[0004] In order to improve production efficiency, the present application provides a mold for preparing surface texture of stainless steel thin-walled parts.

[0005] The present application provides a stainless steel thin-walled part surface texture preparation mold using the following technical solutions: A stainless steel thin-walled part surface texture preparation mold, comprising an upper mold and a lower mold; The upper mold comprises an upper mold base, an upper mold pad, an upper mold main forming block, an upper mold driving base and an upper mold plate, the upper mold pad is fixed on the upper mold base, the upper mold driving base is fixedly mounted on the upper mold pad, the upper mold main forming block is slidably mounted on the upper mold plate, the inner wall of the upper mold main forming block is set as a convex texture surface, the upper mold main forming block is provided with a plurality of them along the circumferential direction, and the plurality of upper mold main forming blocks are enclosed to form a part cavity, and the upper mold driving base cooperates with the outer wall of the upper mold main forming block to drive the upper mold main forming block to slide and shrink; The lower mold includes a lower mold base, a lower mold plate and a lower model core. The lower mold plate is fixed on the lower mold base. The lower model core is arranged in a vertical direction. The lower end of the lower model core is fixed on the lower mold plate. The outer wall of the lower model core is arranged as a concave texture surface. The lower model core is used to be placed in the part cavity.

[0006] Preferably, the outer wall of the upper mold main forming block is arranged as a first inclined surface, and the upper mold driving seat is provided with a second inclined surface matching the first inclined surface.

[0007] Preferably, an upper die guide rail is fixed on the upper die pad, an upper die curved surface forming block is obliquely and slidably mounted on the upper die guide rail, the arrangement position of the upper die curved surface forming block corresponds to the upper die main forming block one by one, a molding gap is formed between the upper die curved surface forming block and the upper die main forming block, and a driving spring is arranged between the upper die main forming block and the upper die curved surface forming block; One end of the upper mold curved surface forming block is provided with a convex texture curved surface, and the upper mold main forming block is provided with a pushing part that cooperates with the other end of the upper mold curved surface forming block.

[0008] Preferably, the pushing portion comprises a pushing block arranged at the upper end of the upper mold main forming block, the pushing block is provided with a first pushing inclined surface, and the other end of the upper mold curved surface forming block is provided with a second pushing inclined surface matching the first pushing inclined surface.

[0009] Preferably, a limiting column is fixed in the upper mold pad, and the limiting column is arranged in the vertical direction. The lower end of the limiting column extends into the part cavity, and a part receiving groove is opened in the middle of the lower end of the limiting column. The lower end of the limiting column blocks the sliding path of the upper mold curved surface forming block.

[0010] Preferably, the lower mold core comprises a core mounting seat, a lower mold inner core block and a lower mold outer core block, the lower mold inner core block and the lower mold outer core block are the same in number, the lower mold inner core block and the lower mold outer core block are staggered in the circumferential direction, the lower ends of the lower mold inner core block and the lower mold outer core block are slidably mounted on the core mounting seat, and the concave texture surface is arranged on the outer walls of the lower mold inner core block and the lower mold outer core block; The lower mold inner core block and the lower mold outer core block are connected with inner retraction springs, and the core mounting seat is provided with a bulging part for driving the lower mold inner core block and the lower mold outer core block to bulge outward.

[0011] Preferably, the bulging portion includes a bulging rod, the lower mold inner core block and the lower mold outer core block are enclosed to form a bulging space inside, and the bulging rod extends into the bulging space; The inner wall of the inner core block of the lower mold is provided with inner bulging tooth grooves at intervals along the vertical direction, the bulging pull rod is provided with inner bulging tooth blocks matching with the inner bulging tooth grooves, the inner wall of the outer core block of the lower mold is provided with outer bulging tooth grooves at intervals along the vertical direction, the bulging pull rod is provided with outer bulging tooth blocks matching with the outer bulging tooth grooves; The groove depth of the external bulging tooth groove at the same height is smaller than that of the internal bulging tooth groove, and the distance difference between the external bulging tooth groove and the internal bulging tooth groove at the same height is L.

[0012] Preferably, a bulging hydraulic cylinder for connecting to the bulging rod is provided on the lower die base.

[0013] Preferably, the lower mold outer core blocks are arranged at intervals along the circumferential direction, the lower mold inner core blocks are arranged between adjacent lower mold outer core blocks, and the two side surfaces of the lower mold inner core blocks are arranged as sliding slopes, and the sliding slopes of the lower mold inner core blocks are respectively in contact with the inner walls of the lower mold outer core blocks on the adjacent two sides.

[0014] Preferably, both ends of the lower mold outer core block are provided with a first chamfered surface, and the sliding inclined surface of the lower mold inner core block is provided with a second chamfered surface matched with the first chamfered surface.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: The present application arranges a stainless steel thin-walled part on a lower mold core and fixes it, and the stainless steel thin-walled part enters the part cavity along with the lower mold core. The upper mold and the lower mold are aligned, and the upper mold driving seat cooperates with the outer wall of the upper mold main forming block to drive the upper mold main forming block to contract. The upper mold main forming block applies pressure to the stainless steel thin-walled part, so that a concave texture is formed on the stainless steel thin-walled part through the cooperation of the convex texture surface on the upper mold main forming block and the concave texture surface on the lower mold core. By preparing the mold as described above, a concave texture can be formed on the stainless steel thin-walled part at one time, with high production efficiency, and the depth and size of the concave texture are uniform, so that the produced stainless steel thin-walled parts have good product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a mold for preparing surface texture of stainless steel thin-walled parts.

[0017] Figure 2 It is a structural schematic diagram of the upper mold.

[0018] Figure 3 It is a structural schematic diagram of the upper die main forming block and the upper die curved surface forming block.

[0019] Figure 4 It is a schematic diagram of the molding of the upper mold curved surface molding block.

[0020] Figure 5 It is a structural schematic diagram of the lower mold.

[0021] Figure 6 It is a cross-sectional schematic diagram of the lower model core.

[0022] Figure 7a It is a schematic diagram of the structure of the lower mold outer core block.

[0023] Figure 7b It is a schematic diagram of the structure of the core block in the lower mold.

[0024] Figure 8 It is a structural diagram of the lower model core.

[0025] Fig. 9 It is a cross-sectional schematic diagram of the lower model core.

[0026] Fig.10 It is a schematic diagram of the assembly of the expansion rod.

[0027] Fig.11 It is a schematic diagram of the action of the bulging part.

[0028] Description of the accompanying drawings: 1. upper mold; 101. upper mold base; 102. upper mold pad; 103. upper mold main forming block; 104. upper mold driving seat; 105. upper mold plate; 106. connecting rod; 107. part cavity; 108. convex texture surface; 109. first inclined surface; 110. second inclined surface; 111. upper mold guide rail; 112. upper mold curved surface forming block; 113. driving spring; 114. convex texture curved surface; 115. pushing block; 116. first pushing inclined surface; 117. second pushing inclined surface; 118. limiting column; 119. part receiving groove; 2. lower mold; 21. Lower die seat; 22, lower die plate; 23, lower mold core; 231, core mounting seat; 232, lower die outer core block; 2321, curved surface; 2322, straight surface; 233, lower die inner core block; 2331, small end face; 2332, sliding inclined surface; 2333, large end face; 234, concave texture surface; 235, first beveled surface; 236, second beveled surface; 237, retracted spring; 24, bulging part; 241, bulging pull rod; 242, bulging hydraulic cylinder; 243, inner bulging tooth groove; 244, inner bulging tooth block; 245, outer bulging tooth groove; 246, outer bulging tooth block. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-11 This application is described in further detail.

[0030] A stainless steel thin-walled part surface texture preparation mold, reference Figure 1 As shown, it includes an upper mold 1 and a lower mold 2. The upper mold 1 is used for press-fitting with the lower mold 2 to achieve surface texture processing of stainless steel thin-walled parts.

[0031] Reference Figure 2 and Figure 3As shown, the upper mold 1 includes an upper mold base 101, an upper mold pad 102, an upper mold main molding block 103, an upper mold driving base 104 and an upper mold plate 105. The upper mold pad 102 is fixed on the upper mold base 101, the upper mold driving base 104 is fixedly installed on the upper mold pad 102, and a cavity for accommodating the upper mold main molding block 103 is formed in the upper mold driving base 104. The upper mold plate 105 is located below the upper mold driving base 104. Connecting rods 106 are fixedly arranged on both sides of the upper mold plate 105. The upper ends of the connecting rods 106 are slidably inserted in the upper mold pad 102, and the upper ends of the connecting rods 106 are provided with anti-slip blocks, so that the upper mold plate 105 is suspended on the upper mold pad 102.

[0032] The upper mold main forming block 103 is slidably mounted on the upper mold plate 105, that is, a sliding groove is provided on the upper mold plate 105, and a sliding block matching the sliding groove is provided at the bottom of the upper mold main forming block 103. A plurality of upper mold main forming blocks 103 are provided along the circumferential direction, and a plurality of upper mold main forming blocks 103 are enclosed to form a part cavity 107. In one embodiment, six upper mold main forming blocks 103 are provided, and the six are arranged along the circumferential direction. The inner wall of each upper mold main forming block 103 is provided as a convex texture surface 108. When the six upper mold main forming blocks 103 are enclosed, the six convex texture surfaces 108 form a full circle.

[0033] It is worth noting that the stainless steel thin-walled part is a condom mold, so the stainless steel thin-walled part has a cylindrical main body and a convex hull arranged at the upper end of the main body, and the convex hull and the main body are connected by a curved surface. The convex texture surface 108 enclosing a full circle is used to form the main body of the stainless steel thin-walled part.

[0034] The upper die main forming block 103 can slide along the radial direction of the upper die plate 105, and the upper die driving seat 104 cooperates with the outer wall of the upper die main forming block 103 to drive the upper die main forming block 103 to slide and shrink. After the upper die driving seat 104 drives the upper die main forming block 103 to slide and shrink, the convex texture surface 108 of the upper die main forming block 103 can be enclosed into a full circle to adapt to the main shape of the stainless steel thin-walled part. Among them, the outer wall of the upper die main forming block 103 is set as a first inclined surface 109, and the upper die driving seat 104 is provided with a second inclined surface 110 that cooperates with the first inclined surface 109.

[0035] Therefore, when the upper mold plate 105 abuts against the lower mold 2, it is connected to the upper mold base 101 through a hydraulic press, which can drive the upper mold driving base 104 to move up and down, and then the upper mold driving base 104 can realize the contraction of the upper mold main forming block 103 to press the convex texture surface 108 against the main body outer wall of the stainless steel thin-walled part.

[0036] Reference Figure 3 and Figure 4As shown, the upper part of the main body in the present application is a curved surface, and the concave texture also needs to be processed. If the concave points are directly molded out with horizontal force, the concave texture on the curved surface will be deformed. Therefore, the concave texture on the curved surface needs to be molded with force in the normal direction of the curved surface.

[0037] Specifically, an upper mold guide rail 111 is fixed on the upper mold pad 102, and an upper mold curved surface forming block 112 is obliquely and slidably installed on the upper mold guide rail 111, and the sliding path of the upper mold curved surface forming block 112 is perpendicular to the normal direction of the curved surface. The number of upper mold guide rails 111 and upper mold curved surface forming blocks 112 is the same as the number of upper mold main forming blocks 103, and the arrangement position of the upper mold curved surface forming blocks 112 corresponds to the upper mold main forming blocks 103 one by one. The upper mold curved surface forming blocks 112 are arranged above the upper mold main forming blocks 103, and the lower end surface of the upper mold curved surface forming blocks 112 and the upper end surface of the upper mold main forming blocks 103 are adapted. The lower end surface of the upper mold curved surface forming blocks 112 and the upper end surface of the upper mold main forming blocks 103 are both inclined, and the inclination direction is the same as the sliding direction of the upper mold curved surface forming blocks 112, and a molding gap is formed between the upper mold curved surface forming blocks 112 and the upper mold main forming blocks 103.

[0038] A driving spring 113 is arranged between the upper mold main molding block 103 and the upper mold curved surface molding block 112, that is, spring grooves are opened on the upper end surface of the upper mold main molding block 103 and the lower end surface of the upper mold curved surface molding block 112, and the lower end of the driving spring 113 is fixed in the spring groove of the upper mold main molding block 103, and the upper end of the driving spring 113 is fixed in the spring groove of the upper mold curved surface molding block 112.

[0039] One end of the upper mold curved surface forming block 112 is provided with a convex texture curved surface 114, and the convex texture curved surface 114 faces the part cavity 107. The upper mold main forming block 103 is provided with a pushing portion that cooperates with the other end of the upper mold curved surface forming block 112. In one embodiment, the pushing portion includes a pushing block 115 provided at the upper end of the upper mold main forming block 103, and a first pushing inclined surface 116 is provided on the pushing block 115. The other end of the upper mold curved surface forming block 112 is provided with a second pushing inclined surface 117 that cooperates with the first pushing inclined surface 116.

[0040] When the upper mold main forming block 103 is slid and contracted by the upper mold driving seat 104, the upper mold curved surface forming block 112 will be driven to contract by the pushing part, and the convex textured curved surfaces 114 on all the upper mold curved surface forming blocks 112 will enclose to form a full circle and press against the curved surface of the stainless steel thin-walled part.

[0041] A limiting column 118 is fixed in the upper die pad 102, and the limiting column 118 is arranged in the vertical direction. The lower end of the limiting column 118 extends into the part cavity 107. A part receiving groove 119 is provided in the middle of the lower end of the limiting column 118. The part receiving groove 119 is used to receive the convex bulge at the upper end of the stainless steel thin-walled part, thereby improving the installation stability of the stainless steel thin-walled part in the part cavity 107. Among them, the lower end of the limiting column 118 blocks the sliding path of the upper die curved surface forming block 112, and the limiting column 118 can limit the excessive sliding of the upper die curved surface forming block 112.

[0042] Thus, by placing the stainless steel thin-walled part on the lower mold 2, the stainless steel thin-walled part is placed in the part cavity 107 of the upper mold 1. At this time, the upper mold 1 and the lower mold 2 are closed, and the upper mold plate 105 abuts against the lower mold 2. The upper mold driving seat 104 moves downward to drive the upper mold main forming block 103 to slide and shrink. When the upper mold main forming block 103 slides and shrinks, the upper mold curved surface forming block 112 will be driven to slide and shrink through the pushing part, so that the upper mold main forming block 103 will be pressed against the main part of the stainless steel thin-walled part, and the upper mold curved surface forming block 112 will be pressed against the curved surface part of the stainless steel thin-walled part, and then the concave point texture of the stainless steel thin-walled part is processed and formed through the convex texture surface 108 of the upper mold main forming block and the convex texture surface 114 of the upper mold curved surface forming block 112.

[0043] Next, the structure of the lower mold 2 will be described.

[0044] Reference Figure 5 , Figure 6 and Figure 8 As shown, the lower mold 2 includes a lower mold base 21, a lower mold plate 22 and a lower mold core 23. The lower mold plate 22 is fixed on the lower mold base 21. The lower mold core 23 is arranged in the vertical direction. The lower end of the lower mold core 23 is fixed on the lower mold plate 22. The outer wall of the lower mold core 23 is arranged as a concave texture surface 234. The lower mold core 23 is used for the stainless steel thin-walled parts to be sleeved and installed. After the stainless steel thin-walled parts are sleeved on the lower mold core 23, the lower mold core 23 can expand and fix the stainless steel thin-walled parts. The lower mold core 23 carries the stainless steel thin-walled parts and is placed in the part cavity 107. Through the cooperation of the concave texture surface 234 and the convex texture surface 108, the concave texture on the stainless steel thin-walled parts is formed.

[0045] The lower mold core 23 includes a core mounting seat 231, a lower mold inner core block 233 and a lower mold outer core block 232. The core mounting seat 231 is fixed on the lower mold plate 22. The lower ends of the lower mold inner core block 233 and the lower mold outer core block 232 are slidably mounted on the core mounting seat 231. The sliding direction of the lower mold inner core block 233 and the lower mold outer core block 232 is along the radial direction of the core mounting seat 231.

[0046] The number of the lower mold inner core blocks 233 and the lower mold outer core blocks 232 is the same, and the lower mold inner core blocks 233 and the lower mold outer core blocks 232 are staggered in the circumferential direction, and the concave texture surface 234 is set on the outer wall of the lower mold inner core block 233 and the lower mold outer core block 232. In order to adapt to the shape of the stainless steel thin-walled parts, the lower mold inner core block 233 and the lower mold outer core block 232 are divided into a main body part and a curved surface part, and the concave texture surface 234 is evenly distributed on the main body part and the curved surface part to adapt to the concave point texture molding of the main body and the curved surface on the stainless steel thin-walled parts.

[0047] In one embodiment, referring to Figure 7a and Figure 7b As shown, three lower mold outer core blocks 232 are provided, and three lower mold inner core blocks 233 are provided. The lower mold outer core blocks 232 are arranged at intervals along the circumferential direction, and the lower mold inner core blocks 233 are arranged between adjacent lower mold outer core blocks 232. The lower mold outer core blocks 232 are arranged in a fan shape, and the lower mold outer core blocks 232 have a curved surface 2321 and a straight surface 2322. The curved surface 2321 of the lower mold outer core block 232 is a concave texture surface 234, and the straight surface 2322 of the lower mold outer core block 232 is used to contact with the lower mold inner core block 233 and bulge outward.

[0048] The cross-section of the lower mold inner core block 233 is trapezoidal, and the small end face 2331 of the lower mold inner core block 233 is a certain arc surface 2321, and the small end face 2331 is a concave texture surface 234. The two side surfaces of the lower mold inner core block 233 are set as sliding slopes 2332. The sliding slopes 2332 of the lower mold inner core block 233 are respectively in contact with the inner walls of the lower mold outer core blocks 232 on the adjacent two sides, that is, they are in contact with the straight surface 2322 of the lower mold outer core block 232. The large end face 2333 of the lower mold inner core block 233 is used for outward bulging contact.

[0049] The lower mold outer core block 232 and the lower mold inner core block 233 are both slid and bulged in the radial direction until the lower mold outer core block 232 and the lower mold inner core block 233 are assembled into a full circle, and the concave texture surface 234 on the lower mold outer core block 232 and the lower mold inner core block 233 corresponds to the texture on the convex texture surface 108. It is worth noting that both ends of the lower mold outer core block 232 are provided with a first chamfered surface 235, and the first chamfered surface 235 is arranged at the junction of the straight surface 2322 and the arc surface 2321 of the lower mold outer core block 232, and the sliding inclined surface 2332 of the lower mold inner core block 233 is provided with a second chamfered surface 236 adapted to the first chamfered surface 235, and the second chamfered surface 236 is arranged at the junction of the sliding inclined surface 2332 and the small end surface 2331 of the lower mold inner core block 233.

[0050] Since the lower mold outer core block 232 and the lower mold inner core block 233 slide in the radial direction, the first beveled surface 235 and the second beveled surface 236 can improve the contact angle between the lower mold outer core block 232 and the lower mold inner core block 233 and the inner wall of the stainless steel thin-walled part, thereby improving the cracking of the lower mold outer core block 232 and the lower mold inner core block 233 at this position.

[0051] The lower mold inner core block 233 and the lower mold outer core block 232 are connected with an inner retraction spring 237, and the lower mold inner core block 233 and the lower mold outer core block 232 are provided with spring grooves near the core mounting seat 231, and the inner retraction spring 237 is accommodated in the spring grooves. The core mounting seat 231 is provided with a bulging portion 24 for driving the lower mold inner core block 233 and the lower mold outer core block 232 to bulge outward.

[0052] Reference Fig. 9 and Fig.10 As shown, the bulging part 24 includes a bulging rod 241, and the lower mold inner core block 233 and the lower mold outer core block 232 are enclosed to form a bulging space inside. The bulging rod 241 extends into the bulging space, and the lower mold base 21 is provided with a bulging hydraulic cylinder 242 for connecting to the bulging rod 241.

[0053] The inner wall of the inner core block 233 of the lower mold is provided with inner bulging tooth grooves 243 at intervals along the vertical direction, and the bulging pull rod 241 is provided with inner bulging tooth blocks 244 that cooperate with the inner bulging tooth grooves 243. The inner wall of the outer core block 232 of the lower mold is provided with outer bulging tooth grooves 245 at intervals along the vertical direction, and the bulging pull rod 241 is provided with outer bulging tooth blocks 246 that cooperate with the outer bulging tooth grooves 245. The inner bulging tooth grooves 243, the inner bulging tooth blocks 244, the outer bulging tooth grooves 245 and the outer bulging tooth blocks 246 are all arranged in a trapezoidal shape, that is, both sides of the inner bulging tooth grooves 243, the inner bulging tooth blocks 244, the outer bulging tooth grooves 245 and the outer bulging tooth blocks 246 are provided with bulging inclined surfaces.

[0054] The inner bulging tooth groove 243 is arranged on the large end surface 2333 of the inner core block 233 of the lower mold, and the outer bulging tooth groove 245 is arranged on the straight surface 2322 of the outer core block 232 of the lower mold.

[0055] Among them, the groove depth of the external bulging tooth groove 245 at the same height is smaller than that of the internal bulging tooth groove 243, and the distance difference between the external bulging tooth groove 245 and the internal bulging tooth groove 243 at the same height is L. Therefore, when the lower mold outer core block 232 and the lower mold inner core block 233 are driven by the bulging pull rod 241 to bulge outward and shrink inward, the lower mold outer core block 232 and the lower mold inner core block 233 have a certain movement time difference.

[0056] Reference Fig.11As shown, during outward bulging, the lower mold outer core block 232 and the lower mold inner core block 233 first move outward synchronously. Since the moving stroke of the lower mold outer core block 232 is short, the lower mold inner core block 233 can continue to move outward after the lower mold outer core block 232 moves into place, until the lower mold inner core block 233 and the lower mold outer core block 232 are rounded.

[0057] When shrinking inward, the lower mold inner core block 233 can move inward before the lower mold outer core block 232. After the lower mold inner core block 233 shrinks inward for a certain distance, the lower mold outer core block 232 moves inward again until the lower mold inner core block 233 and the lower mold outer core block 232 move into place one after another.

[0058] The following is an explanation of the pit texture processing of stainless steel thin-walled parts.

[0059] By placing the stainless steel thin-walled part on the lower mold 2, the bulging hydraulic cylinder 242 pulls the bulging rod 241, and the bulging rod 241 drives the lower mold outer core block 232 and the lower mold inner core block 233 to bulge outward to fix the stainless steel thin-walled part, and the concave texture surface 234 on the lower mold core 23 is tightly attached to the inner wall of the stainless steel thin-walled part.

[0060] The stainless steel thin-walled part is placed in the part cavity 107 of the upper mold 1. At this time, the upper mold 1 and the lower mold 2 are molded together, and the upper mold plate 105 is in contact with the lower mold 2. The upper mold driving seat 104 moves downward to drive the upper mold main forming block 103 to slide and shrink. When the upper mold main forming block 103 slides and shrinks, the upper mold curved surface forming block 112 is driven to slide and shrink through the pushing part, so that the upper mold main forming block 103 will press against the main part of the stainless steel thin-walled part, and the upper mold curved surface forming block 112 will press against the curved surface part of the stainless steel thin-walled part, and then the concave point texture of the stainless steel thin-walled part is processed and formed through the convex texture surface 108 of the upper mold main forming block and the convex texture curved surface 114 of the upper mold curved surface forming block 112.

[0061] 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 stainless steel thin-walled part surface texture preparation mold, characterized in that: It comprises an upper mold (1) and a lower mold (2); The upper mold (1) comprises an upper mold base (101), an upper mold pad (102), an upper mold main molding block (103), an upper mold driving base (104) and an upper mold plate (105); the upper mold pad (102) is fixed on the upper mold base (101); the upper mold driving base (104) is fixedly mounted on the upper mold pad (102); the upper mold main molding block (103) is slidably mounted on the upper mold plate (105); the inner wall of the upper mold main molding block (103) is arranged as a convex texture surface (108); a plurality of upper mold main molding blocks (103) are arranged along the circumferential direction; the plurality of upper mold main molding blocks (103) enclose a part mold cavity (107); the upper mold driving base (104) cooperates with the outer wall of the upper mold main molding block (103) to drive the upper mold main molding block (103) to slide and shrink; The lower mold (2) comprises a lower mold base (21), a lower mold plate (22) and a lower mold core (23); the lower mold plate (22) is fixed on the lower mold base (21); the lower mold core (23) is arranged in a vertical direction; the lower end of the lower mold core (23) is fixed on the lower mold plate (22); the outer wall of the lower mold core (23) is arranged as a concave texture surface (234); and the lower mold core (23) is used to be placed in the part mold cavity (107).

2. A stainless steel thin-walled part surface texture preparation mold according to claim 1, characterized in that: The outer wall of the upper die main forming block (103) is arranged as a first inclined surface (109), and the upper die driving seat (104) is provided with a second inclined surface (110) matching the first inclined surface (109).

3. A stainless steel thin-walled part surface texture preparation mold according to claim 1, characterized in that: An upper die guide rail (111) is fixed on the upper die pad (102), an upper die curved surface forming block (112) is obliquely and slidably mounted on the upper die guide rail (111), the arrangement position of the upper die curved surface forming block (112) corresponds one-to-one with the upper die main forming block (103), a molding gap is formed between the upper die curved surface forming block (112) and the upper die main forming block (103), and a driving spring (113) is arranged between the upper die main forming block (103) and the upper die curved surface forming block (112); One end of the upper mold curved surface forming block (112) is provided with a convex texture curved surface (114), and the upper mold main forming block (103) is provided with a pushing portion that cooperates with the other end of the upper mold curved surface forming block (112).

4. A stainless steel thin-walled part surface texture preparation mold according to claim 3, characterized in that: The pushing portion comprises a pushing block (115) arranged at the upper end of the upper mold main forming block (103), the pushing block (115) being provided with a first pushing inclined surface (116), and the other end of the upper mold curved surface forming block (112) being provided with a second pushing inclined surface (117) cooperating with the first pushing inclined surface (116).

5. A stainless steel thin-walled part surface texture preparation mold according to claim 3, characterized in that: A limiting column (118) is fixed in the upper mold pad (102), and the limiting column (118) is arranged in the vertical direction. The lower end of the limiting column (118) extends into the part cavity (107), and a part receiving groove (119) is provided in the middle of the lower end of the limiting column (118). The lower end of the limiting column (118) blocks the sliding path of the upper mold curved surface forming block (112).

6. A stainless steel thin-walled part surface texture preparation mold according to claim 1, characterized in that: The lower mold core (23) comprises a core mounting seat (231), a lower mold inner core block (233) and a lower mold outer core block (232); the lower mold inner core blocks (233) and the lower mold outer core blocks (232) are of the same number; the lower mold inner core blocks (233) and the lower mold outer core blocks (232) are arranged alternately along the circumferential direction; the lower ends of the lower mold inner core blocks (233) and the lower mold outer core blocks (232) are slidably mounted on the core mounting seat (231); and the concave texture surface (234) is arranged on the outer walls of the lower mold inner core blocks (233) and the lower mold outer core blocks (232); The lower mold inner core block (233) and the lower mold outer core block (232) are connected to each other with an inner retraction spring (237), and the core mounting seat (231) is provided with a bulging portion (24) for driving the lower mold inner core block (233) and the lower mold outer core block (232) to bulge outward.

7. A stainless steel thin-walled part surface texture preparation mold according to claim 6, characterized in that: The bulging portion (24) comprises a bulging rod (241), the lower die inner core block (233) and the lower die outer core block (232) are enclosed to form a bulging space inside, and the bulging rod (241) extends into the bulging space; The inner wall of the lower mold inner core block (233) is provided with inner bulging tooth grooves (243) at intervals along the vertical direction, the bulging pull rod (241) is provided with inner bulging tooth blocks (244) that cooperate with the inner bulging tooth grooves (243), the inner wall of the lower mold outer core block (232) is provided with outer bulging tooth grooves (245) at intervals along the vertical direction, and the bulging pull rod (241) is provided with outer bulging tooth blocks (246) that cooperate with the outer bulging tooth grooves (245); The groove depth of the external bulging tooth groove (245) at the same height is smaller than that of the internal bulging tooth groove (243), and the distance difference between the external bulging tooth groove (245) and the internal bulging tooth groove (243) at the same height is L.

8. A stainless steel thin-walled part surface texture preparation mold according to claim 6, characterized in that: The lower die base (21) is provided with a bulging hydraulic cylinder (242) for connecting to the bulging pull rod (241).

9. A stainless steel thin-walled part surface texture preparation mold according to claim 6, characterized in that: The lower mold outer core blocks (232) are arranged at intervals along the circumferential direction, the lower mold inner core blocks (233) are arranged between adjacent lower mold outer core blocks (232), and the two side surfaces of the lower mold inner core blocks (233) are arranged as sliding inclined surfaces (2332), and the sliding inclined surfaces (2332) of the lower mold inner core blocks (233) are respectively in contact with the inner walls of the lower mold outer core blocks (232) on the adjacent two sides.

10. A stainless steel thin-walled part surface texture preparation mold according to claim 9, characterized in that: Both ends of the lower mold outer core block (232) are provided with first beveled surfaces (235), and the sliding beveled surface (2332) of the lower mold inner core block (233) is provided with a second beveled surface (236) matched with the first beveled surface (235).

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