Die for preventing guide sleeve from twisting

Abstract

The utility model discloses a mould for preventing a guide sleeve from twisting, which relates to the technical field of mould processing and comprises a top platform, an upper mould seat is fixedly connected to the inner wall of the top end of the top platform, a clamping frame is fixedly connected to one side of the outer part of the upper mould seat, and a connecting plate is fixedly connected to the outer wall of the clamping frame. The bottom end of the outer side of the connecting plate is fixedly connected with a guide sleeve, the outer surface of the bottom of the guide sleeve is fixedly connected with a linkage frame, a locking wedge groove is formed in the guide sleeve, and the surface of the inner side of the locking wedge groove is movably connected with a guide column. In the die assembly process of the die, the guide sleeve slides along the guide column, the wedge-shaped structure limits the twisting freedom degree of the guide sleeve around the axis of the guide column, and the guide sleeve of the die can still keep stable and cannot twist when facing lateral force generated by uneven distribution of stamping materials in the die assembly process.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically a mold for preventing guide sleeve from twisting. Background Technology

[0002] In the field of mold processing, guide sleeves are an important component of molds. They ensure the precise guidance of the mold during operation. Guide sleeves work in conjunction with guide pillars and play a key guiding role in the opening and closing of the mold. By constraining the direction of mold movement, the guide sleeves ensure that the mold opens and closes along a predetermined trajectory, preventing the mold from deviating or misaligning.

[0003] In mold design, traditional molds mostly rely on the simple cylindrical surface mating to connect the guide sleeve. Since the guide sleeve and guide post are only connected by a simple cylindrical surface mating, the guide sleeve is prone to twisting when the mold is moving at high speed or under great pressure. This twisting will reduce the precision of the mold, affecting product quality and production efficiency. Due to the twisting of the guide sleeve, the structural stability of the entire mold will be affected, causing the mold to shift during use, resulting in mold damage, increasing maintenance costs and downtime. To address the above problems, a mold that prevents the guide sleeve from twisting is proposed. Utility Model Content

[0004] To overcome the above problems, this utility model provides a mold to prevent the guide sleeve from twisting.

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a mold to prevent the guide sleeve from twisting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold for preventing guide sleeve from twisting, comprising a top platform, a base fixedly connected to the outer surface of the bottom end of the top platform, a lower mold base fixedly connected to the inner center of the base, an upper mold base fixedly connected to the inner wall of the top end of the top platform, the upper mold base being disposed at the bottom center of the top platform, a locking frame fixedly connected to one side of the upper mold base, a connecting plate fixedly connected to the outer wall of the locking frame, a guide sleeve fixedly connected to the bottom outer end of the connecting plate, a linkage frame fixedly connected to the bottom outer surface of the guide sleeve, a locking wedge groove being provided inside the guide sleeve, a guide post being movably connected to the inner surface of the locking wedge groove, and a locking wedge block being fixedly connected to the outer surface of the guide post.

[0007] As described above, the locking wedges are distributed in a ring on the outer surface of the guide post. The locking wedges are set in a "dovetail" shape, and the locking wedge grooves are opened in a "dovetail" shape to fit the outer wall of the locking wedges. The guide post forms a wedge structure with the guide sleeve through the cooperation between the locking wedges and the locking wedge grooves.

[0008] As described above, the locking wedge groove is vertically opened between the connecting plate, the guide sleeve and the linkage frame, the connecting plate is symmetrically distributed on both sides of the locking frame, and the guide column is vertically fixed between the top platform and the lower mold base.

[0009] As described above, the guide sleeve is slidably connected to the guide post through the cooperation of the connecting plate and the upper mold base. The guide post is symmetrically distributed on both top sides of the lower mold base. The lower mold base is fixed at the top center of the base and is located directly below the upper mold base.

[0010] As described above, a connecting plate is fixedly connected to the outer surface of the connecting plate. The connecting plate is fixedly connected to the clamping frame through the connecting plate. A circular groove is opened inside the outer end of the connecting plate. A limit post is movably connected to the inner surface of the circular groove. A buffer spring is fixedly connected to the outer surface of the bottom end of the circular groove. A bottom ring is fixedly connected to the outer surface of the bottom end of the buffer spring. A limit plate is fixedly connected to one side of the outer wall of the bottom ring. A sliding groove is movably connected to the outer end of the limit plate. The sliding groove is opened on one side of the connecting frame.

[0011] As described above, the linkage frame is an L-shaped plate with the opening facing upwards. The other side of the linkage frame is fixed to the bottom end of the linkage plate. The linkage frame is set on one side of the buffer spring through the linkage plate. The limiting post is vertically fixed inside the top platform. The limiting post and the circular groove are slidably connected.

[0012] As described above, the bottom ring is slidably connected to the outer surface of the limiting post, the buffer spring is wrapped around the outer wall of the limiting post, the limiting plate is disposed outside the bottom ring near the connecting frame, and the limiting plate is slidably connected to the inner side of the outer wall of the connecting frame.

[0013] Compared with the prior art, this mold for preventing guide sleeve twisting has the following beneficial effects:

[0014] I. This utility model forms a stable wedge structure through the cooperation of the "dovetail" type locking wedge block and the locking wedge groove. During the mold closing process, when the guide sleeve slides along the guide post, the wedge structure restricts the degree of freedom of the guide sleeve to twist around the axis of the guide post. Even when facing the lateral force caused by uneven distribution of stamping material during the mold closing process, the guide sleeve of the mold can still remain stable and will not twist.

[0015] II. The linkage plate of this utility model, through the cooperation of the circular groove and the limiting post, combined with the locking wedge block and the locking wedge groove, restricts the movement of the upper mold base from multiple angles, so that the device prevents the upper mold base from shifting and twisting in the horizontal direction. When the upper mold base and the lower mold base gradually approach each other, the buffer spring is gradually compressed, absorbing a large amount of mold closing impact force, thereby reducing the instantaneous impact force borne by the mold components, avoiding frequent mold opening and closing operations and hard contact mold closing that cause wear on the surface of the mold components.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the mold for preventing the guide sleeve from twisting, according to this utility model.

[0018] Figure 2 This is a schematic diagram of the mold clamping frame structure for preventing guide sleeve twisting according to this utility model;

[0019] Figure 3 This is a schematic diagram of the mold locking wedge block structure for preventing guide sleeve twisting according to the present invention;

[0020] Figure 4 This utility model relates to a mold for preventing the guide sleeve from twisting. Figure 3 Schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Top platform; 101. Base; 102. Lower mold base; 2. Upper mold base; 201. Locking bracket; 202. Connecting plate; 203. Guide sleeve; 204. Linkage frame; 205. Locking wedge groove; 206. Guide post; 207. Locking wedge block; 3. Linkage plate; 301. Circular groove; 302. Limiting post; 303. Buffer spring; 304. Bottom ring; 305. Limiting plate; 306. Slide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4As shown, this utility model provides a technical solution: a mold for preventing the guide sleeve from twisting, including a top platform 1, a base 101 fixedly connected to the outer surface of the bottom end of the top platform 1, a lower mold base 102 fixedly connected to the center of the inner part of the base 101, an upper mold base 2 fixedly connected to the inner wall of the top end of the top platform 1, the upper mold base 2 being located at the center of the bottom of the top platform 1, a locking bracket 201 fixedly connected to one side of the upper mold base 2, a connecting plate 202 fixedly connected to the outer wall of the locking bracket 201, a guide sleeve 203 fixedly connected to the bottom end of the connecting plate 202, a linkage bracket 204 fixedly connected to the bottom outer surface of the guide sleeve 203, and a locking wedge groove 205 provided inside the guide sleeve 203. A guide post 206 is movably connected to the inner surface of the connecting plate 202. A locking wedge 207 is fixedly connected to the outer surface of the guide post 206. A connecting plate 3 is fixedly connected to the outer surface of the connecting plate 202. The connecting plate 3 is fixedly connected to the locking frame 201 through the connecting plate 202. A circular groove 301 is opened inside the outer end of the connecting plate 3. A limit post 302 is movably connected to the inner surface of the circular groove 301. A buffer spring 303 is fixedly connected to the outer surface of the bottom end of the circular groove 301. A bottom ring 304 is fixedly connected to the outer surface of the bottom end of the buffer spring 303. A limit plate 305 is fixedly connected to one side of the outer wall of the bottom ring 304. A sliding groove 306 is movably connected to the outer end of the limit plate 305. The sliding groove 306 is opened on one side of the connecting frame 204.

[0024] According to the overall structure of the device, in its initial state, the upper mold base 2 is located at a certain distance from the bottom of the top platform 1 and the lower mold base 102. A stamping machine is installed at the fixed connection between the top of the upper mold base 2 and the top platform 1. The guide column 206 is vertically fixed between the top platform 1 and the lower mold base 102. The guide sleeve 203 is connected to the upper mold base 2 through the connecting plate 202. When the stamping machine is started, the upper mold base 2 slowly descends and gradually approaches the lower mold base 102. The upper mold base 2 drives the locking frame 201 to descend together. The locking frame 201 then drives the connecting plate 202 and the guide sleeve 203 connected to it to move downward along the guide column 206. The locking wedge block 207 outside the guide column 206 and the locking wedge groove 205 inside the guide sleeve 203 are in a "dovetail" shape fit. This wedge structure allows the guide sleeve 203 to slide downward along the guide column 206 without... The guide sleeve 203 can only slide linearly along the guide post 206. Even when the material is unevenly distributed during stamping and subjected to lateral force during mold closing, the guide sleeve 203 will not twist. As the upper mold base 2 continues to descend, the mold is finally closed, completing the stamping operation of the workpiece placed on the lower mold base 102. When the upper mold base 2 drives the connecting plate 3 to move downward, the bottom ring 304 in the circular groove 301 inside the connecting plate 3 fits against the outer wall of the limiting post 302 and slides downward. When the connecting plate 3 descends, the limiting plate 305 gradually approaches the bottom end of the top platform 1. The upper mold base 2 and the lower mold base 102 gradually approach each other. Finally, the buffer spring 303 is gradually compressed. At the same time, the buffer spring 303 drives the limiting plate 305 to slide in the opposite direction in the slide groove 306 until the upper mold base 2 and the lower mold base 102 complete the mold closing action.

[0025] like Figure 1-4 As shown, locking wedges 207 are distributed in a ring on the outer surface of guide post 206. The locking wedges 207 are in a dovetail shape, and the locking wedge grooves 205 are also in a dovetail shape that fits against the outer wall of the locking wedges 207. The guide post 206, through the cooperation between the locking wedges 207 and the locking wedge grooves 205, forms a wedge-shaped structure with the guide sleeve 203. The locking wedge grooves 205 are vertically penetrating the connecting plate 202, the guide sleeve 203, and the linkage frame 2. Between 04, the connecting plates 202 are symmetrically distributed on both sides of the clamping frame 201, the guide posts 206 are vertically fixed between the top platform 1 and the lower mold base 102, the guide sleeve 203 forms a sliding connection with the guide posts 206 through the cooperation of the connecting plates 202 and the upper mold base 2, the guide posts 206 are symmetrically distributed on the top of both sides of the lower mold base 102, the lower mold base 102 is fixed at the top center of the base 101, and the lower mold base 102 is located directly below the upper mold base 2.

[0026] The upper die holder 2 slowly descends via the stamping press, gradually approaching the lower die holder 102. The upper die holder 2 drives the retaining bracket 201 to descend together. The retaining bracket 201 then drives the connecting plate 202 and the guide sleeve 203 connected to it to move downward along the guide post 206. The locking wedge block 207 outside the guide post 206 and the locking wedge groove 205 inside the guide sleeve 203 are in a "dovetail" shape. This wedge structure prevents the guide sleeve 203 from twisting around the axis of the guide post 206 while sliding downward along the guide post 206. This allows the guide sleeve 203 to slide linearly along the guide post 206. Even when the material is unevenly distributed during stamping and subjected to lateral force during the mold closing process, the guide sleeve 203 will not twist. As the upper die holder 2 continues to descend, the mold is finally closed, completing the stamping operation of the workpiece placed on the lower die holder 102.

[0027] like Figure 1-4 As shown, the linkage frame 204 is an L-shaped plate with the opening facing upwards. The other side of the linkage frame 204 is fixed to the bottom end of the linkage plate 3. The linkage frame 204 is set on one side of the buffer spring 303 through the linkage plate 3. The limiting post 302 is vertically fixed inside the top platform 1. The limiting post 302 and the circular groove 301 are slidably connected. The bottom ring 304 is slidably connected to the outer surface of the limiting post 302. The buffer spring 303 covers the outer wall of the limiting post 302. The limiting plate 305 is set on the outside of the bottom ring 304 near the linkage frame 204. The limiting plate 305 is slidably connected to the inner side of the outer wall of the linkage frame 204.

[0028] The upper mold base 2 drives the connecting plate 3 to move downward, so that the bottom ring 304 in the circular groove 301 inside the connecting plate 3 fits against the outer wall of the limiting post 302 and slides downward. As the connecting plate 3 descends, the limiting plate 305 gradually approaches the bottom end of the top platform 1 at the bottom. The upper mold base 2 and the lower mold base 102 gradually approach each other. Finally, the buffer spring 303 is gradually compressed. At the same time, the buffer spring 303 drives the limiting plate 305 to slide in the opposite direction in the slide groove 306 until the upper mold base 2 and the lower mold base 102 complete the mold closing action.

[0029] Working principle: In the initial state, the upper die holder 2 is located at a certain distance from the bottom of the top platform 1 and the lower die holder 102. A stamping machine is installed at the fixed connection between the top of the upper die holder 2 and the top platform 1. The guide column 206 is vertically fixed between the top platform 1 and the lower die holder 102. The guide sleeve 203 is connected to the upper die holder 2 through the connecting plate 202. When the stamping machine is started, the upper die holder 2 slowly descends and gradually approaches the lower die holder 102. The upper die holder 2 drives the retaining frame 201 to descend together. The retaining frame 201 then drives the connecting plate 202 and the guide sleeve 203 connected to it to move along the guide column 206. As the guide post 206 moves downward, the locking wedge 207 outside the guide post 206 and the locking wedge groove 205 inside the guide sleeve 203 are in a "dovetail" shape fit. This wedge structure prevents the guide sleeve 203 from twisting around the axis of the guide post 206 while sliding downward along the guide post 206. This allows the guide sleeve 203 to slide linearly along the guide post 206. Even when the guide sleeve 203 is subjected to lateral force due to uneven material distribution during stamping, it will not twist during the mold closing process. As the upper mold base 2 continues to descend, the mold is finally closed, completing the stamping operation of the workpiece placed on the lower mold base 102.

[0030] When the upper mold base 2 moves the connecting plate 3 downward, the bottom ring 304 in the circular groove 301 inside the connecting plate 3 fits against the outer wall of the limiting post 302 and slides downward. As the connecting plate 3 descends, the limiting plate 305 gradually approaches the bottom end of the top platform 1 at the bottom. The upper mold base 2 and the lower mold base 102 gradually approach each other. Finally, the buffer spring 303 is gradually compressed. At the same time, the buffer spring 303 drives the limiting plate 305 to slide in the opposite direction in the slide groove 306 until the upper mold base 2 and the lower mold base 102 complete the mold closing action.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold for preventing guide sleeve twisting, comprising a top platform (1), characterized in that: A base (101) is fixedly connected to the bottom outer surface of the top platform (1). A lower mold base (102) is fixedly connected to the center of the base (101). An upper mold base (2) is fixedly connected to the inner wall of the top of the top platform (1). The upper mold base (2) is located at the bottom center of the top platform (1). A locking frame (201) is fixedly connected to the outer side of the upper mold base (2). A connecting plate (202) is fixedly connected to the outer wall of the locking frame (201). A guide sleeve (203) is fixedly connected to the bottom outer end of the connecting plate (202). A linkage frame (204) is fixedly connected to the bottom outer surface of the guide sleeve (203). A locking wedge groove (205) is opened inside the guide sleeve (203). A guide post (206) is movably connected to the inner surface of the locking wedge groove (205). A locking wedge block (207) is fixedly connected to the outer surface of the guide post (206).

2. The mold for preventing guide sleeve twisting according to claim 1, characterized in that: The locking wedges (207) are distributed in a ring on the outer surface of the guide post (206). The locking wedges (207) are set in a "dovetail" shape. The locking wedge grooves (205) are opened in a "dovetail" shape to fit the outer wall of the locking wedges (207). The guide post (206) forms a wedge structure with the guide sleeve (203) through the cooperation between the locking wedges (207) and the locking wedge grooves (205).

3. The mold for preventing guide sleeve twisting according to claim 1, characterized in that: The locking wedge groove (205) is vertically opened between the connecting plate (202), the guide sleeve (203) and the linkage frame (204). The connecting plate (202) is symmetrically distributed on both sides of the clamping frame (201). The guide column (206) is vertically fixed between the top platform (1) and the lower mold base (102).

4. The mold for preventing guide sleeve twisting according to claim 1, characterized in that: The guide sleeve (203) is slidably connected to the guide post (206) through the cooperation of the connecting plate (202) and the upper mold base (2). The guide post (206) is symmetrically distributed on both sides of the top of the lower mold base (102). The lower mold base (102) is fixed at the top center of the base (101) and is located directly below the upper mold base (2).

5. The mold for preventing guide sleeve twisting according to claim 1, characterized in that: A connecting plate (3) is fixedly connected to the outer surface of the connecting plate (202). The connecting plate (3) is fixedly connected to the clamping frame (201) through the connecting plate (202). A circular groove (301) is opened inside the outer end of the connecting plate (3). A limiting post (302) is movably connected to the inner surface of the circular groove (301). A buffer spring (303) is fixedly connected to the outer surface of the bottom end of the circular groove (301). A bottom ring (304) is fixedly connected to the outer surface of the bottom end of the buffer spring (303). A limiting plate (305) is fixedly connected to one side of the outer wall of the bottom ring (304). A sliding groove (306) is movably connected to the outer end of the limiting plate (305). The sliding groove (306) is opened on one side of the connecting frame (204).

6. The mold for preventing guide sleeve twisting according to claim 5, characterized in that: The linkage frame (204) is an L-shaped plate with the opening facing upward. The other side of the linkage frame (204) is fixed to the bottom end of the linkage plate (3). The linkage frame (204) is set on one side of the buffer spring (303) through the linkage plate (3). The limiting post (302) is vertically fixed inside the top platform (1). The limiting post (302) and the circular groove (301) are slidably connected.

7. The mold for preventing guide sleeve twisting according to claim 5, characterized in that: The bottom ring (304) is slidably connected to the outer surface of the limiting post (302), the buffer spring (303) covers the outer wall of the limiting post (302), the limiting plate (305) is disposed on the outside of the bottom ring (304) near the connecting frame (204), and the limiting plate (305) is slidably connected to the inner side of the outer wall of the connecting frame (204).

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