Positioning tool clamp for plastic mold processing

Abstract

The utility model relates to mould processing fixture technical field, and disclose a positioning frock clamp for plastic mould processing, including work table, the both sides of work table's top surface all rotatory connection has clamping plate, two clamping plate mutually draw near one side side wall welding has the resistance board, the side wall of resistance board one side has the resistance block of clamping, rotatory rotatory board drive trapezoidal screw rotation, make extrusion board push plastic mould body contact resistance block, push resistance block makes clamping plate rotate, further by clamping block clamping mould realizes the positioning, convenient subsequent processing, when clamping block long -time work appears abrasion and needs to replace, or want to change suitable clamping block and resistance block according to mould characteristics, because clamping block is through first clamping block and clamping plate first installation slot clamping, resistance block is through second clamping block and resistance board second installation slot clamping, and the cross section of clamping block is T-shaped, when replacing, only need to pull out old upwards, again clamping new corresponding installation slot, and it is very convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of mold processing fixture technology, specifically a positioning tooling fixture for plastic mold processing. Background Technology

[0002] If the clamping is unstable during the mold processing, it is easy to cause problems such as dimensional deviation and shape mismatch in the processed mold, which will affect the production quality and performance of subsequent plastic products. However, many existing positioning tooling fixtures have obvious deficiencies in structure and function. Some fixtures have relatively simple clamping methods, which are difficult to adapt to the diverse positioning needs of plastic molds of different shapes and sizes. For some irregular molds, they cannot provide a stable and accurate clamping effect.

[0003] Furthermore, existing positioning fixtures will wear out during long-term use. When existing fixtures wear out, they are mostly replaced as a whole, which is not only wasteful of resources, but also time-consuming and cumbersome. Therefore, we propose a positioning fixture for plastic mold processing to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for plastic mold processing, thereby solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a positioning fixture for processing plastic molds, including a worktable, with clamping plates rotatably connected to both sides of the top surface of the worktable, a stop plate welded to the side wall of the two clamping plates that are close to each other, a stop block snapped into one side wall of the stop plate, clamping blocks snapped into the right side of the two clamping plates that are close to each other, a spring provided on the left side of the two clamping plates that are close to each other, a support plate fixedly installed on the right side of the top surface of the worktable, a threaded hole provided on the support plate, and a matching trapezoidal lead screw provided in the threaded hole, with a pressing plate rotatably connected to the left end of the trapezoidal lead screw.

[0006] As a preferred technical solution of this utility model, a first mounting groove is provided on the right side of the two clamping plates that are close to each other, and the top of the first mounting groove extends through and to the top of the clamping plate. A first locking block that matches the first mounting groove is provided in the first mounting groove. The outer wall of the first locking block is fixedly connected to one side wall of the clamping block, and the cross-section of the first locking block is T-shaped. The bottom of the clamping block is inclined.

[0007] As a preferred technical solution of this utility model, a second mounting groove is provided on the right side of both of the baffles, and the top of the second mounting groove extends through and to the top of the baffle. A matching second locking block is provided in the second mounting groove. The outer wall of the second locking block is fixedly connected to one side wall of the baffle, and the cross-section of the second locking block is T-shaped.

[0008] As a preferred embodiment of this utility model, the left sides of both clamping plates are provided with grooves, and connecting blocks are rotatably connected in the grooves. An mounting plate is installed on one side of the connecting block, and the two ends of the spring are respectively fixedly connected to the sides of the two mounting plates that are close to each other.

[0009] As a preferred embodiment of this utility model, a rotating plate is fixedly installed at the end of the trapezoidal lead screw away from the extrusion plate, and a rotating rod penetrating the rotating plate is provided on the outer ring of the rotating plate.

[0010] As a preferred technical solution of this utility model, a plastic mold body is clamped between the two clamping blocks, and mounting seats are welded to both side walls of the workbench, with multiple mounting holes provided on the mounting seats.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This positioning fixture for processing plastic molds rotates by rotating a rotating plate to drive a trapezoidal lead screw, which in turn causes an extrusion plate to push the plastic mold body to move. This allows the plastic mold body to first contact the stop block, and by pushing the stop block, the clamping plate rotates, thereby clamping the plastic mold with the clamping block. This achieves the purpose of clamping and fixing the plastic mold body, positioning it, and facilitating subsequent processing operations.

[0012] 2. This positioning fixture for plastic mold processing can be easily replaced when the clamping blocks wear out during long-term operation, or when a suitable clamping block or stop block needs to be replaced according to the characteristics of the mold. Since the clamping block is engaged with the first mounting groove of the clamping plate by the first locking block, and the stop block is engaged with the second mounting groove of the stop plate by the second locking block, and the cross-sections of the first and second locking blocks are both T-shaped, replacement can be achieved simply by pulling out the old clamping block or stop block upwards and then inserting the new clamping block or stop block with the appropriate shape and size into the mounting groove through the corresponding locking block. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the disassembled structure of the clamping block and the blocking block of this utility model; Figure 3 This is a schematic diagram illustrating the working principle and structure of this utility model.

[0014] In the diagram: 1. Workbench; 2. Mounting base; 3. Stopping block; 4. Spring; 5. Mounting plate; 6. Connecting block; 7. Stopping plate; 8. Clamping plate; 9. Clamping block; 10. Pressing plate; 11. Trapezoidal lead screw; 12. Support plate; 13. Rotating rod; 14. Rotating plate; 15. First clamping block; 16. Second clamping block. Detailed Implementation

[0015] 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.

[0016] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3 A positioning fixture for processing plastic molds includes a worktable 1. The worktable 1 is securely mounted on a suitable processing equipment platform, such as the worktable of a CNC milling machine, through the mounting holes on the mounting base 2. The plastic mold body 17 to be processed is placed between two clamping plates 8. Then, the rotating plate 14 is rotated. Since the rotating plate 14 is fixedly connected to the trapezoidal lead screw 11, which is located in the threaded hole of the support plate 12, rotating the rotating plate 14 will drive the trapezoidal lead screw 11 to rotate, thereby causing the trapezoidal lead screw 11 to move to the left, pushing the extrusion plate 10 to press the clamping plate 8 on the right side to the left.

[0017] After being compressed, the clamping plate 8 rotates around its rotating connection with the worktable 1, causing the clamping blocks 9 mounted on the two clamping plates 8 to move closer to each other and clamp the plastic mold body 17. The clamping blocks 9 are engaged in the first mounting groove of the clamping plate 8 by the first locking block 15, the first locking block 15 having a T-shaped cross-section. The shape ensures the stability of the clamping block 9 during installation, and the bottom of the clamping block 9 is inclined, which can also fit different shapes of the plastic mold body 17, such as cylindrical shapes. At the same time, the stop block 3 on the stop plate 7 is engaged in the second mounting groove through the second locking block 16, which plays a supporting role for the plastic mold body 17. The rotating rod 13 passes through the rotating plate 14, which makes it convenient for the operator to rotate the trapezoidal screw 11. When the clamping is tightened to a suitable degree, the rotation is stopped, and the plastic mold body 17 can be processed. After the processing is completed, the rotating plate 14 is rotated in the opposite direction, so that the trapezoidal screw 11 drives the extrusion plate 10 to move to the right. At the same time, through the elastic action of the spring 4, the two ends of the spring 4 are fixedly connected to the two mounting plates 5 respectively. The mounting plates 5 are rotatably connected to the clamping plate 8 through the connecting block 6. When the clamping block 9 releases the plastic mold body 17 and removes it, the two clamping plates 8 move away from each other under the action of the spring 4, which can prepare for the next clamping.

[0018] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3 When the clamping block 9 wears out during long-term operation and needs to be replaced, or when a suitable clamping block 9 and abutment block 3 need to be replaced according to the characteristics of the mold, the clamping block 9 is engaged with the first mounting groove of the clamping plate 8 through the first locking block 15, and the abutment block 3 is engaged with the second mounting groove of the abutment plate 7 through the second locking block 16, and the cross-sections of the first locking block 15 and the second locking block 16 are both T-shaped. Therefore, when replacing the old clamping block 9 or the blocking block 3, simply pull the old clamping block 9 or the blocking block 3 upwards, and then insert the new clamping block 9 or the blocking block 3 with the appropriate shape and size into the installation slot through the corresponding card block. After installing the appropriate clamping block 9 and the blocking block 3, according to the operation method of Embodiment 1, place the plastic mold on the worktable 1, and drive the trapezoidal screw 11 to rotate by rotating the rotating plate 14, so that the extrusion plate 10 pushes the plastic mold body 17 to move, so that the plastic mold body 17 first contacts the blocking block 3, and by pushing the blocking block 3, the clamping plate 8 rotates, so that the plastic mold can be clamped by the clamping block 9, and then the processing operation is performed. After the processing is completed, the operation is reversed to release and remove the plastic mold.

[0019] Implementation effect: By rotating the rotating plate 14, the trapezoidal screw 11 is driven to rotate, which causes the extrusion plate 10 to push the plastic mold body 17 to move. This allows the plastic mold body 17 to first contact the stop block 3, and by pushing the stop block 3, the clamping plate 8 is rotated. The clamping block 9 can then clamp the plastic mold, achieving the purpose of clamping and fixing the plastic mold body 17, positioning it, and facilitating subsequent processing operations.

[0020] When the clamping block 9 wears out during long-term operation and needs to be replaced, or when a suitable clamping block 9 and abutment block 3 need to be replaced according to the characteristics of the mold, since the clamping block 9 is engaged with the first mounting groove of the clamping plate 8 through the first locking block 15, and the abutment block 3 is engaged with the second mounting groove of the abutment plate 7 through the second locking block 16, and the cross-sections of the first locking block 15 and the second locking block 16 are both T-shaped, when replacing, you only need to pull out the old clamping block 9 or abutment block 3 upwards, and then insert the new clamping block 9 or abutment block 3 with the appropriate shape and size into the mounting groove through the corresponding locking block, thus achieving the purpose of convenient replacement.

[0021] 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 positioning fixture for processing plastic molds, comprising a worktable (1), characterized in that: The top surface of the workbench (1) is rotatably connected to both sides of the clamping plate (8). A stop plate (7) is welded to the side wall of the two clamping plates (8) that are close to each other. A stop block (3) is snapped into one side wall of the stop plate (7). A clamping block (9) is snapped into the right side of the two clamping plates (8) that are close to each other. A spring (4) is provided on the left side of the two clamping plates (8) that are close to each other. A support plate (12) is fixedly installed on the right side of the top surface of the workbench (1). A threaded hole is opened on the support plate (12), and a matching trapezoidal screw (11) is provided in the threaded hole. A pressing plate (10) is rotatably connected to the left end of the trapezoidal screw (11).

2. The positioning fixture for plastic mold processing according to claim 1, characterized in that: The two clamping plates (8) are provided with a first mounting groove on the right side of their adjacent sides. The top of the first mounting groove extends through and to the top of the clamping plate (8). A first locking block (15) is provided in the first mounting groove to match it. The outer wall of the first locking block (15) is fixedly connected to one side wall of the clamping block (9). The cross-section of the first locking block (15) is T-shaped. The bottom of the clamping block (9) is inclined.

3. The positioning fixture for plastic mold processing according to claim 1, characterized in that: The two baffles (7) are provided with a second mounting groove on the right side, and the top of the second mounting groove extends through and to the top of the baffle (7). A matching second locking block (16) is provided in the second mounting groove. The outer wall of the second locking block (16) is fixedly connected to one side wall of the baffle (3), and the cross-section of the second locking block (16) is T-shaped.

4. The positioning fixture for plastic mold processing according to claim 1, characterized in that: The left side of each of the two clamping plates (8) is provided with a groove, and a connecting block (6) is rotatably connected in the groove. An mounting plate (5) is installed on one side of the connecting block (6), and the two ends of the spring (4) are fixedly connected to the two mounting plates (5) on the side that are close to each other.

5. A positioning fixture for processing plastic molds according to claim 1, characterized in that: The trapezoidal lead screw (11) is fixedly mounted with a rotating plate (14) at the end away from the extrusion plate (10), and a rotating rod (13) is provided on the outer ring of the rotating plate (14) through the rotating plate (14).

6. The positioning fixture for plastic mold processing according to claim 1, characterized in that: The plastic mold body (17) is clamped between the two clamping blocks (9). The two side walls of the workbench (1) are welded with mounting seats (2), and the mounting seats (2) have multiple mounting holes.

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