Quick and accurate positioning die for belt pulley production

Abstract

The utility model relates to the technical field of belt pulleys, and discloses a quick and accurate positioning die for belt pulley production, which comprises a lower die pedestal, an upper die pedestal and a protective side plate, the upper die pedestal is arranged above the lower die pedestal, an inner groove is arranged on a fixing plate, a positioning block is arranged on the upper die pedestal, and the protective side plate is arranged on the lower die pedestal. The upper die pedestal is arranged at the upper end of the lower die pedestal, the connecting rod is fixedly arranged on the upper die pedestal, the positioning block is connected with the upper die pedestal in a penetrating mode, the movable plate is located in the lower die pedestal, a protruding block is fixedly arranged on the movable plate, and the protruding block is connected with the fixed die disc in a penetrating mode. The positioning block is pushed to be rapidly separated from the inner groove, the two side mold bases are separated, the threaded push rod moves upwards to penetrate through the sealing plate, finally, the protruding block is pushed to move out of the through hole formed in the fixed mold disc, a formed product is ejected out, workers are assisted in demolding, and practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of belt pulleys, in particular to a rapid and accurate positioning die for belt pulley production. Background Art

[0002] A belt pulley is a type of hub part mainly used for transmitting power over a long distance. Generally, it has a relatively large size and is mainly manufactured by casting and forging in the manufacturing process. Belt pulleys are widely used in various mechanical equipment, including but not limited to small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery and other fields. When producing belt pulleys, in order to ensure the production quality, it is necessary to position and form the products through a die.

[0003] An existing die for rapid and accurate positioning in belt pulley production (Publication No.: CN216226834U) has at least the following drawbacks: This device can fix the upper die base and the lower die base through a threaded rod, a T-shaped block and a rotating block to prevent the side moving die and the upper moving die from shifting. However, the installation and disassembly of each die component are relatively cumbersome, not convenient enough, which is likely to affect the work efficiency. And after the belt pulley solidifies and forms, it is not convenient for the staff to take the material. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the drawbacks existing in the prior art, and to provide a rapid and accurate positioning die for belt pulley production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A rapid and accurate positioning die for belt pulley production includes a lower die base, an upper die base and a protective side plate. The upper die base is located above the lower die base. A fixed plate is fixedly installed on the lower die base, and an inner groove is opened on the fixed plate. A positioning block is installed on the upper die base. The positioning block penetrates through and is connected to the upper die base and is embedded in the inner groove. A fixed die plate is fixedly installed on the lower die base. An activity plate is arranged below the fixed die plate. The activity plate is located inside the lower die base. A convex block is fixedly arranged on the activity plate. The convex block penetrates through and is connected to the fixed die plate. A sealing plate is arranged at the bottom end of the activity plate. A second spring is fixedly installed between the activity plate and the sealing plate.

[0007] As a further scheme of the utility model, two groups of stud bolts are arranged on both sides of the positioning block. The stud bolts are threadedly connected to the upper die base. A first spring is fixedly installed inside the inner groove. A pouring conduit is installed on the upper die base. The pouring conduit penetrates through and is connected to the upper die base. The positioning blocks are symmetrically distributed on the upper die base. An outer chute is opened on the lower die base.

[0008] As a further solution of the present utility model, a bidirectional screw is movably installed inside the outer sliding groove. A first screw block is arranged on the bidirectional screw, and the first screw block is threadedly connected to the bidirectional screw. A second screw block is installed on one side of the first screw block, and the second screw block is threadedly connected to the bidirectional screw. One end of the bidirectional screw is connected to the inside of the outer sliding groove through a rotating shaft. Two groups of side mold seats are arranged on both sides of the fixed mold plate.

[0009] As a further solution of the present utility model, a connecting rod is arranged between the upper mold pedestal and the upper end of the protective side plate. A clamping block is arranged between the lower end of the protective side plate and the lower mold pedestal. The first screw block is fixedly connected to the side mold seat. A fixed seat is fixedly installed on the upper mold pedestal. A movable seat is fixedly arranged at the top end of the protective side plate. One end of the connecting rod is movably connected to the movable seat, and the end of the connecting rod away from the movable seat is embedded and connected to the fixed seat.

[0010] As a further solution of the present utility model, the sealing plate is fixedly connected to the inner wall of the lower mold pedestal. A fixing bolt is movably installed on the clamping block. The clamping block is embedded and connected to the side wall of the lower mold pedestal. The fixing bolt penetrates through the clamping block and is embedded and connected to the lower mold pedestal.

[0011] As a further solution of the present utility model, the movable plate is slidably connected to the inner wall of the lower mold pedestal. A threaded push rod is movably installed on the sealing plate. An internal threaded sleeve is arranged between the threaded push rod and the lower end of the lower mold pedestal. The threaded push rod is threadedly connected to the internal threaded sleeve and penetrates through the sealing plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. For the convenience of pulley positioning production, the staff first rotates the bidirectional screw clockwise. Under the action of the rotating shaft, the bidirectional screw drives two groups of screw blocks to move relatively through positive and reverse threads. The first screw block and the second screw block respectively drive two groups of side mold seats to move and fit. After placing the upper mold pedestal on the upper end of the lower mold pedestal, push the positioning block to fit into the inner groove, and then manually twist multiple groups of studs in sequence to penetrate the upper mold pedestal, and push the bottom end of the studs to contact and press the positioning block, so that the positioning block compresses the first spring and deforms, thereby installing the upper mold pedestal on the lower mold pedestal. By pushing the clamping block to fit into the groove opened on the side of the lower mold pedestal and using tools to twist the fixing bolt, the protective side plate is fixedly installed on the side of the lower mold pedestal. Pull the connecting rod to fit into the fixed seat, further installing and connecting the upper mold pedestal and the protective side plate. The protective side plate strengthens the tightness of the connection and prevents the raw materials from leaking out from the side. Finally, pour the raw materials into the space between the molds through the pouring conduit, reducing the installation complexity and improving the work efficiency.

[0014] 2. After the raw material solidifies and forms, for easy demolding and material taking, the staff pulls the connecting rod upward to disengage from the fixed seat, loosens the fixing bolts with tools, first removes the protective side plate, and the staff manually twists the stud counterclockwise to loosen multiple groups of studs in sequence. Under the elastic action of the first spring, the positioning block is quickly pushed to disengage from the inner groove, thereby pulling the two positioning blocks to drive the upper die base to separate from the lower die base. Finally, the bidirectional screw is rotated counterclockwise to separate the two side die bases, exposing the formed product. An internal thread sleeve is installed at the connection between the lower die base and the threaded push rod. The threaded push rod is rotated to penetrate into the lower die base. The threaded push rod moves upward through the sealing plate, pushing the movable plate upward to approach the fixed die plate, driving the second spring to stretch and deform. Finally, the convex block is pushed out of the through hole opened on the fixed die plate, ejecting the formed product. After loosening the threaded push rod, under the action of the second spring, the convex block is driven to move back into the through hole of the fixed die plate, assisting the staff in demolding and enhancing the practicability. Description of the Drawings

[0015] Figure 1 The sectional structure schematic diagram of a quick and precise positioning mold for pulley production proposed by the present utility model;

[0016] Figure 2 The three-dimensional structure schematic diagram of a quick and precise positioning mold for pulley production proposed by the present utility model;

[0017] Figure 3 The split structure schematic diagram of the movable plate and the sealing plate of a quick and precise positioning mold for pulley production proposed by the present utility model;

[0018] Figure 4 The split schematic diagram of the lower die base of a quick and precise positioning mold for pulley production proposed by the present utility model;

[0019] Figure 5 The split schematic diagram of the upper die base and the protective side plate of a quick and precise positioning mold for pulley production proposed by the present utility model;

[0020] In the figure: 1. Lower die base; 101. Fixed plate; 102. Fixed die plate; 103. Sealing plate; 104. Movable plate; 105. Threaded push rod; 106. Internal thread sleeve; 2. Upper die base; 201. Stud; 202. Positioning block; 203. Outer sliding groove; 3. Protective side plate; 301. Connecting rod; 302. Block; 303. Fixing bolt; 4. Pouring conduit; 5. Bidirectional screw; 6. First spring; 7. Convex block; 8. Second spring; 801. First screw block; 802. Second screw block; 803. Side die base; 804. Movable seat; 805. Fixed seat; 806. Inner groove. Detailed Description of the Embodiment

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Referring to Figures 1 - 5 , a fast and accurate positioning mold for pulley production, including a lower mold base 1, an upper mold base 2 and a protective side plate 3. The upper mold base 2 is located above the lower mold base 1. A fixed plate 101 is fixedly installed on the lower mold base 1. An inner groove 806 is opened on the fixed plate 101. A positioning block 202 is installed on the upper mold base 2. The positioning block 202 penetrates and connects the upper mold base 2 and is embedded and connected inside the inner groove 806. A fixed mold plate 102 is fixedly installed on the lower mold base 1. A movable plate 104 is arranged below the fixed mold plate 102. The movable plate 104 is located inside the lower mold base 1. A convex block 7 is fixedly arranged on the movable plate 104. The convex block 7 penetrates and connects the fixed mold plate 102. A sealing plate 103 is arranged at the bottom end of the movable plate 104. A second spring 8 is fixedly installed between the movable plate 104 and the sealing plate 103.

[0025] During use, for the convenience of pulley positioning production, the staff first rotate the bidirectional screw 5 clockwise. Under the action of the rotating shaft, the bidirectional screw 5 drives two sets of screw blocks to move relatively through left-handed and right-handed threads. The first screw block 801 and the second screw block 802 drive two sets of side die seats 803 to move and fit respectively. After placing the upper die pedestal 2 on the upper end of the lower die pedestal 1, the positioning block 202 is pushed to fit into the inner groove 806. Then, a plurality of sets of studs 201 are manually twisted in sequence to penetrate the upper die pedestal 2, and the bottom end of the stud 201 is pushed to contact and press the positioning block 202, causing the positioning block 202 to compress the first spring 6 and deform, thereby installing the upper die pedestal 2 on the lower die pedestal 1. By pushing the clamping block 302 to fit into the groove opened on the side of the lower die pedestal 1 and using a tool to twist the fixing bolt 303, the protective side plate 3 is fixedly installed on the side of the lower die pedestal 1. The connecting rod 301 is pulled to fit into the fixed seat 805, further installing and connecting the upper die pedestal 2 and the protective side plate 3. The protective side plate 3 enhances the tightness of the connection and prevents raw materials from leaking out from the side. Finally, raw materials are injected into the space between the molds through the pouring conduit 4, reducing the complexity of installation and improving work efficiency.

[0026] In this embodiment, two sets of studs 201 are provided on both sides of the positioning block 202. The studs 201 are threadedly connected to the upper die pedestal 2. The first spring 6 is fixedly installed inside the inner groove 806. The pouring conduit 4 is installed on the upper die pedestal 2, and the pouring conduit 4 penetrates and connects the upper die pedestal 2. The positioning blocks 202 are symmetrically distributed on the upper die pedestal 2. An outer sliding groove 203 is opened on the lower die pedestal 1.

[0027] During use, for the convenience of demolding and material taking, after the raw materials solidify and form, the staff pull the connecting rod 301 upward to disengage from the fixed seat 805, and use a tool to loosen the fixing bolt 303. First, the protective side plate 3 is removed. The staff manually twist the studs 201 counterclockwise to loosen a plurality of sets of studs 201 in sequence. Under the resilience of the first spring 6, the positioning block 202 is quickly pushed to disengage from the inner groove 806, thereby pulling the two positioning blocks 202 to drive the upper die pedestal 2 to separate from the lower die pedestal 1. Finally, the bidirectional screw 5 is rotated counterclockwise to separate the two side die seats 803, exposing the formed product. An internal thread sleeve 106 is installed at the connection between the lower die pedestal 1 and the threaded push rod 105. The threaded push rod 105 is rotated to penetrate into the lower die pedestal 1. The threaded push rod 105 moves upward through the sealing plate 103, pushing the movable plate 104 upward to approach the fixed die plate 102, driving the second spring 8 to stretch and deform. Finally, the convex block 7 is pushed out of the through hole opened on the fixed die plate 102 to eject the formed product. After loosening the threaded push rod 105, under the action of the second spring 8, the convex block 7 is driven to displace back into the through hole of the fixed die plate 102, assisting the staff in demolding and enhancing the practicability.

[0028] In this embodiment, a bidirectional screw 5 is movably installed inside the outer chute 203. A first screw block 801 is arranged on the bidirectional screw 5. The first screw block 801 is threadedly connected to the bidirectional screw 5. A second screw block 802 is installed on one side of the first screw block 801. The second screw block 802 is threadedly connected to the bidirectional screw 5. One end of the bidirectional screw 5 is connected to the inside of the outer chute 203 through a rotating shaft. Two sets of side mold bases 803 are arranged on both sides of the fixed mold plate 102.

[0029] During use, by pushing the bottom end of the stud 201 to contact and press the positioning block 202, at the same time, the positioning block 202 compresses the first spring 6 and deforms. After loosening the stud 201, the spring 6 uses its own resilience to push the positioning block 202 out of the inner groove 806, facilitating the quick separation of the upper mold pedestal 2 from the lower mold pedestal 1.

[0030] In this embodiment, a connecting rod 301 is arranged between the upper mold pedestal 2 and the upper end of the protective side plate 3. A clamping block 302 is arranged between the lower end of the protective side plate 3 and the lower mold pedestal 1. The first screw block 801 is fixedly connected to the side mold base 803. A fixed seat 805 is fixedly installed on the upper mold pedestal 2. A movable seat 804 is fixedly arranged at the top of the protective side plate 3. One end of the connecting rod 301 is movably connected to the movable seat 804, and the end of the connecting rod 301 far from the movable seat 804 is embedded and connected to the fixed seat 805.

[0031] During use, by pulling the connecting rod 301 to be engaged with the fixed seat 805, the upper mold pedestal 2 and the protective side plate 3 are further installed and connected, strengthening the tightness of the connection and facilitating stable pouring.

[0032] In this embodiment, the sealing plate 103 is fixedly connected to the inner wall of the lower mold pedestal 1. A fixing bolt 303 is movably installed on the clamping block 302. The clamping block 302 is embedded and connected to the side wall of the lower mold pedestal 1. The fixing bolt 303 penetrates through and is embedded and connected to the clamping block 302 and the lower mold pedestal 1.

[0033] During use, by making the clamping block 302 fit into the groove opened on the side of the lower mold pedestal 1 and then further twisting the fixing bolt 303, the clamping block 302 is further fixed, thereby installing the protective side plate 3 on the side of the lower mold pedestal 1. The protective side plates 3 are symmetrically distributed on the lower mold pedestal 1, facilitating the solidification and forming of the pulley.

[0034] In this embodiment, the movable plate 104 is slidably connected to the inner wall of the lower mold pedestal 1. A threaded push rod 105 is movably installed on the sealing plate 103. An internal thread sleeve 106 is arranged between the threaded push rod 105 and the lower end of the lower mold pedestal 1. The threaded push rod 105 is threadedly connected to the internal thread sleeve 106 and penetrates through and is connected to the sealing plate 103.

[0035] During use, when the threaded push rod 105 pushes the movable plate 104 to move upward, the movable plate 104 drives the second spring 8 to stretch and deform at the same time. After loosening the threaded push rod 105, the second spring 8 releases energy and returns to its original state, driving the movable plate 104 to reset, so that the convex block 7 moves back into the through hole of the fixed mold plate 102.

[0036] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: For the convenience of pulley positioning production, the staff first rotates the bidirectional screw 5 clockwise. Under the action of the rotating shaft, the bidirectional screw 5 drives two sets of screw blocks to move relatively through the left-handed and right-handed threads. The first screw block 801 and the second screw block 802 drive the two sets of side mold bases 803 to move and fit respectively. After placing the upper mold pedestal 2 on the upper end of the lower mold pedestal 1, push the positioning block 202 to fit into the inner groove 806. Manually twist a plurality of sets of stud bolts 201 through the upper mold pedestal 2 in sequence again, and push the bottom end of the stud bolt 201 to contact and press the positioning block 202, so that the positioning block 202 compresses the first spring 6 and deforms, thereby installing the upper mold pedestal 2 on the lower mold pedestal 1. By pushing the clamping block 302 to fit into the groove opened on the side of the lower mold pedestal 1 and using a tool to twist the fixing bolt 303, the protective side plate 3 is fixedly installed on the side of the lower mold pedestal 1. Pull the connecting rod 301 to fit into the fixed seat 805, further installing and connecting the upper mold pedestal 2 and the protective side plate 3. The protective side plate 3 strengthens the tightness of the connection and prevents the raw materials from leaking out from the side. Finally, pour the raw materials into the space between the molds through the pouring conduit 4, reducing the complexity of installation and improving work efficiency. For the convenience of demolding and taking out the materials, after the raw materials solidify and form, the staff pulls the connecting rod 301 upward to disengage from the fixed seat 805, and uses a tool to loosen the fixing bolt 303. First, remove the protective side plate 3. The staff manually twists the stud bolt 201 counterclockwise, loosening a plurality of sets of stud bolts 201 in sequence. Under the resilience of the first spring 6, the positioning block 202 is quickly disengaged from the inner groove 806, thereby pulling the two positioning blocks 202 to drive the upper mold pedestal 2 to separate from the lower mold pedestal 1. Finally, rotate the bidirectional screw 5 counterclockwise to separate the two sets of side mold bases 803, exposing the formed product. An internal thread sleeve 106 is installed at the connection between the lower mold pedestal 1 and the threaded push rod 105. Rotate the threaded push rod 105 to penetrate into the lower mold pedestal 1. The threaded push rod 105 moves upward through the sealing plate 103, pushes the movable plate 104 upward to approach the fixed mold plate 102, drives the second spring 8 to stretch and deform, and finally pushes the convex block 7 out of the through hole opened on the fixed mold plate 102, ejecting the formed product. After loosening the threaded push rod 105, under the action of the second spring 8, the convex block 7 returns to the through hole of the fixed mold plate 102, assisting the staff in demolding and enhancing the practicability.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fast and accurate positioning die for pulley production, comprising a lower die pedestal (1), an upper die pedestal (2) and a protective side plate (3), characterized in that: The upper die pedestal (2) is located above the lower die pedestal (1). A fixed plate (101) is fixedly installed on the lower die pedestal (1). An inner groove (806) is formed in the fixed plate (101). A positioning block (202) is installed on the upper die pedestal (2). The positioning block (202) penetrates through and is embedded in the upper die pedestal (2) and internally embedded in the inner groove (806). A fixed die plate (102) is fixedly installed on the lower die pedestal (1). Below the fixed die plate (102), there is a movable plate (104). The movable plate (104) is located inside the lower die pedestal (1). A convex block (7) is fixedly arranged on the movable plate (104). The convex block (7) penetrates through and is connected to the fixed die plate (102). A sealing plate (103) is arranged at the bottom end of the movable plate (104). A second spring (8) is fixedly installed between the movable plate (104) and the sealing plate (103).

2. The rapid and precise positioning die for pulley production according to claim 1, wherein, On both sides of the positioning block (202), there are two groups of stud bolts (201). The stud bolts (201) are threadedly connected to the upper die pedestal (2). A first spring (6) is fixedly installed inside the inner groove (806). A pouring conduit (4) is installed on the upper die pedestal (2). The pouring conduit (4) penetrates through and is connected to the upper die pedestal (2). The positioning blocks (202) are symmetrically distributed on the upper die pedestal (2). An outer sliding groove (203) is formed in the lower die pedestal (1).

3. The rapid and precise positioning die for pulley production according to claim 2, characterized in that, A bidirectional screw rod (5) is movably installed inside the outer sliding groove (203). On the bidirectional screw rod (5), there is a first screw block (801). The first screw block (801) is threadedly connected to the bidirectional screw rod (5). On one side of the first screw block (801), there is a second screw block (802). The second screw block (802) is threadedly connected to the bidirectional screw rod (5). One end of the bidirectional screw rod (5) is connected to the inside of the outer sliding groove (203) through a rotating shaft. On both sides of the fixed die plate (102), there are two groups of side die pedestals (803).

4. A rapid and precise positioning mold for pulley production according to claim 3, characterized in that, Between the upper die pedestal (2) and the upper end of the protective side plate (3), there is a connecting rod (301). Between the lower end of the protective side plate (3) and the lower die pedestal (1), there is a clamping block (302). The first screw block (801) is fixedly connected to the side die pedestal (803). A fixed seat (805) is fixedly installed on the upper die pedestal (2). An activity seat (804) is fixedly arranged at the top end of the protective side plate (3). One end of the connecting rod (301) is movably connected to the activity seat (804). The end of the connecting rod (301) far from the activity seat (804) is embedded and connected to the fixed seat (805).

5. The rapid and precise positioning die for pulley production according to claim 4, characterized in that The sealing plate (103) is fixedly connected to the inner wall of the lower die pedestal (1). A fixing bolt (303) is movably installed on the clamping block (302). The clamping block (302) is embedded and connected to the side wall of the lower die pedestal (1). The fixing bolt (303) penetrates through the clamping block (302) and is embedded and connected to the lower die pedestal (1).

6. A rapid and precise positioning die for pulley production according to claim 1, characterized in that The movable plate (104) is slidably connected to the inner wall of the lower die base (1). A threaded push rod (105) is movably installed on the sealing plate (103). An internal thread sleeve (106) is provided between the threaded push rod (105) and the lower end of the lower die base (1). The threaded push rod (105) is threadedly connected to the internal thread sleeve (106) and penetrates through and is connected to the sealing plate (103).

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