Synchronous clamping device for mold machining

Abstract

The utility model discloses a synchronous clamping device for mould processing, which comprises a bottom plate, a fixed shaft is arranged in the center of the bottom plate, a swing arm is sleeved on the fixed shaft, the swing arm is rotatably connected with the fixed shaft, two groups of clamping block mechanisms are symmetrically arranged at two ends of the bottom plate, each group of clamping block mechanism comprises a guide rail, the guide rail is fixedly connected with the bottom plate, and the guide rail is fixedly connected with the bottom plate. Clamping frames are installed on the guide rails in a sliding mode, clamping blocks are installed on the opposite sides of the tops of the two clamping frames, one side of the clamping frame A is connected with the same side of the swing arm through a connecting rod, the other side of the clamping frame B is connected with the same side of the swing arm through a connecting rod, one end of the connecting rod is rotationally connected with the swing arm, and the other end of the connecting rod is rotationally connected with the corresponding clamping frame. One clamping frame is connected with a driving mechanism, and the driving mechanism is used for driving the clamping frame to move along the guide rail; according to the utility model, the processing precision of the die is improved to a certain extent, the clamping or loosening operation is quick, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a synchronous clamping device for mold processing. Background Art

[0002] Extrusion molds are commonly used molds for plastic products. The plastic that is heated to a molten state is squeezed into the mold cavity through a press, and is shaped by the mold cavity to eventually form a product of a corresponding shape. The mold requires high precision, so the manufacturer of the mold needs to ensure the processing accuracy, otherwise it will directly affect the qualification rate of the plastic product. The stability of the clamping during the mold processing will also affect the processing progress. The existing clamping device is difficult to achieve synchronous movement of the clamping blocks or clamping arms on both sides, which has a certain negative impact on the processing accuracy of the mold. In addition, the existing clamps are generally locked in the machine groove with bolts, and multiple connecting bolts need to be tightened, which is time-consuming and labor-intensive, reducing production efficiency. Utility Model Content

[0003] In order to solve the above problems in the prior art, the utility model provides a synchronous clamping device for mold processing.

[0004] The specific scheme of the utility model is as follows: a synchronous clamping device for mold processing, including a base plate, a fixed shaft is provided in the center of the base plate, a swing arm is mounted on the fixed shaft, the swing arm is rotatably connected to the fixed shaft, two groups of clamping block mechanisms are symmetrically installed at both ends of the base plate, each group of clamping block mechanisms includes a guide rail, the guide rail is fixedly connected to the base plate, a clamping frame is slidably installed on the guide rail, and clamping blocks are installed on the opposite sides of the tops of the two clamping frames, one side of the clamping frame A is connected to the same side of the swing arm through a connecting rod, and the other side of the clamping frame B is connected to the same side of the swing arm through a connecting rod, one end of the connecting rod is rotatably connected to the swing arm, and the other end is rotatably connected to the corresponding clamping frame, one of the clamping frames is connected to a driving mechanism, and the driving mechanism is used to drive the clamping frame to move along the guide rail.

[0005] Preferably, the driving mechanism comprises a cylinder, a cylinder seat of the cylinder is fixedly connected to the base plate, and one end of the piston rod of the cylinder is connected to the corresponding clamping frame.

[0006] Preferably, a support plate is mounted on the top of the fixed shaft, and the height of the support plate is lower than the height of the clamping block.

[0007] Preferably, the clamping block is connected to the clamping frame by bolts, so that clamping blocks of different lengths can be selected to adapt to workpieces of different sizes, and it is convenient to replace the corresponding clamping block according to the workpiece to be processed.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. It realizes synchronous clamping of the clamping blocks at both ends, which improves the processing accuracy of the mold to a certain extent; 2. The clamping or loosening of the workpiece is controlled by the driving mechanism, which is convenient and fast, saving time and effort compared with the original bolt locking clamp method. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the utility model in a released state;

[0010] Figure 2 It is the front view of the utility model;

[0011] Figure 3 yes Figure 2 AA view;

[0012] Figure 4 It is a top view of the utility model;

[0013] Figure 5 It is a top view of the utility model in a clamping state;

[0014] In the figure: 1. base plate; 2. clamping frame A; 3. guide rail; 4. clamping block; 5. cylinder; 6. support plate; 7. connecting rod; 8. swing arm; 9. fixed shaft; 10. clamping frame B; 11. connecting rod. DETAILED DESCRIPTION

[0015] like Figure 1-4 As shown, this embodiment provides a synchronous clamping device for mold processing, including a base plate 1, a fixed shaft 9 is provided at the center of the base plate 1, a swing arm 8 is mounted on the fixed shaft 9, the swing arm 8 is rotatably connected to the fixed shaft 9, two groups of clamping block mechanisms are symmetrically installed at both ends of the base plate 1, each group of clamping block mechanisms includes a guide rail 3, the guide rail 3 is fixedly connected to the base plate 1, a clamping frame is slidably installed on the guide rail 3, and clamping blocks 4 are installed on the opposite sides of the tops of the two clamping frames, wherein one side of the clamping frame A2 is connected to the same side of the swing arm 8 through a connecting rod 7, and the other side of the clamping frame B10 is connected to the same side of the swing arm 8 through a connecting rod 11, one end of the connecting rod 7 and the connecting rod 11 is rotatably connected to the swing arm 8, and the other end is rotatably connected to the corresponding clamping frame, wherein the clamping frame B10 is connected to a driving mechanism, and the driving mechanism is used to drive the clamping frame B10 to move along the guide rail 3.

[0016] Preferably, the driving mechanism comprises a cylinder 5 , a cylinder seat of the cylinder 5 is fixedly connected to the base plate 1 , and one end of a piston rod of the cylinder 5 is connected to a corresponding clamping frame 2 .

[0017] Preferably, a support plate 6 is installed on the top of the fixed shaft 9 , and the height of the support plate 6 is lower than the height of the clamping block 4 .

[0018] Preferably, the clamp block 4 is connected to the clamping frame 2 by bolts, so that clamp blocks 4 of different lengths can be selected to adapt to workpieces of different sizes, and it is convenient to replace the corresponding clamp block 4 according to the workpiece to be processed. Figure 4 , 5 As shown, the working principle of the utility model is as follows: when the piston rod of the cylinder 5 is extended, the clamping frames at both ends move away from each other, and the workpiece is placed on the support plate 6 and positioned; then the cylinder 5 is controlled to retract, and at this time, the cylinder 5 drives the clamping frame B10 to translate to the left along the guide rail 3, and the clamping frame B10 pushes the swing arm 8 under the action of the connecting rod 11, and the swing arm 8 rotates around the fixed axis 9, and then the other side of the swing arm 8 pulls the connecting rod 7, and the clamping frame A2 at the left end is driven to translate to the right through the connecting rod 7, so that the clamping frames at both ends move synchronously toward the middle, so that the clamping blocks 4 at both ends clamp the workpiece; and when releasing the workpiece, it is only necessary to control the cylinder 5 to move in the opposite direction.

Claims

1. A synchronous clamping device for mold processing, characterized in that: It includes a base plate, a fixed shaft is provided at the center of the base plate, a swing arm is mounted on the fixed shaft, the swing arm is rotatably connected to the fixed shaft, two groups of clamping block mechanisms are symmetrically installed at both ends of the base plate, each group of clamping block mechanisms includes a guide rail, the guide rail is fixedly connected to the base plate, a clamping frame is slidably installed on the guide rail, and clamping blocks are installed on the opposite sides of the tops of the two clamping frames, one side of the clamping frame A is connected to the same side of the swing arm through a connecting rod, and the other side of the clamping frame B is connected to the same side of the swing arm through a connecting rod, one end of the connecting rod is rotatably connected to the swing arm, and the other end is rotatably connected to the corresponding clamping frame, one of the clamping frames is connected to a driving mechanism, and the driving mechanism is used to drive the clamping frame to move along the guide rail.

2. A synchronous clamping device for mold processing according to claim 1, characterized in that: The driving mechanism comprises a cylinder, a cylinder seat of the cylinder is fixedly connected to the bottom plate, and one end of a piston rod of the cylinder is connected to a corresponding clamping frame.

3. A synchronous clamping device for mold processing according to claim 1, characterized in that: A support plate is arranged on the top of the fixed shaft, and the height of the support plate is lower than the height of the clamping block.

4. A synchronous clamping device for mold processing according to claim 1, characterized in that: The clamping block is connected to the clamping frame via bolts.

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