Half shaft clamping device of pre-heading machine

Abstract

The utility model relates to a pre-upsetting machine half shaft clamping device which comprises a pressing structure arranged on a pre-upsetting machine workbench, the pressing structure comprises a fixed die fixedly arranged on the workbench and a movable die hinged to the fixed die, the fixed die and the movable die are respectively provided with a containing groove, and the containing grooves are communicated with the fixed die and the movable die. The two accommodating grooves are buckled to form an accommodating cavity for accommodating the half shaft; a storage cavity communicated with the accommodating cavity is formed in the fixed mold, and the clamping mechanism is mounted in the storage cavity; the clamping mechanism comprises a clamping part, a transmission connecting part and a power connecting part, the clamping part is located in the containing cavity, and the power connecting part is located outside the fixed die and connected with the power mechanism. When the press-fit structure is opened, the half shaft is clamped and fixed through the clamping part, the half shaft is prevented from toppling over, manual direct contact with the half shaft is also avoided, and potential production safety hazards are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-axle production, in particular to a semi-axle clamping device for a pre-piercing machine. Background Art

[0002] Automobile half shaft is one of the important parts of automobile, including rod, spline end and flange end. Half shaft needs to be pre-forging processed by pre-forging machine during processing.

[0003] The pre-pier machine currently used in the factory has a structural form similar to the structure disclosed in patent application number 2023105347597, including a workbench, a bracket is provided on the workbench, a pre-pier structure with a lifting function is provided on the top of the bracket, the pre-pier structure is connected to the lifting plate, a pressure head is provided in the middle of the lifting plate, and a pressing structure for fixing the workpiece to be corrected is provided below the pressure head. A rotating shaft is provided on the workbench, a flip plate is provided on the rotating shaft, a clamping structure is provided on the flip plate, a flip rod is provided on the flip plate, the flip rod is connected to the workbench through a flip element, the rotating shaft is connected to the fixed plate through a connecting plate, and an insertion slot is provided on the fixed plate.

[0004] When the above-mentioned pre-pier machine is in use, after the pressure head rises, the pressing structure opens accordingly. When the pressing structure opens, a person is required to hold the half-shaft in time to prevent the half-shaft from tipping over. Since the temperature of the upper part of the half-shaft is relatively high, manual operation may cause burns due to incorrect holding, posing a major production safety hazard.

[0005] Based on the above technical problems, the inventor combined the current pre-piercing machine structure and proposed an improvement plan based on the existing pre-piercing machine pressing structure. A clamping device is added to the pressing structure. When the pressing structure is opened, the half-axle is clamped and fixed by the clamping device to prevent the half-axle from tipping over and direct manual contact with the half-axle, greatly reducing production safety hazards. Utility Model Content

[0006] The utility model aims at the deficiencies of the prior art and provides a half-axle clamping device for a pre-piercing machine.

[0007] The utility model is realized by the following technical scheme, and provides a half-axle clamping device for a pre-piercing machine, comprising a pressing structure arranged on a workbench of the pre-piercing machine, wherein the pressing structure comprises a fixed mold fixedly arranged on the workbench and a movable mold hinged to the fixed mold, wherein a receiving groove is respectively provided on the fixed mold and the movable mold, and the two receiving grooves are buckled to form an receiving cavity for receiving the half-axle; a receiving cavity communicated with the receiving cavity is provided on the fixed mold, and a clamping mechanism is installed in the receiving cavity; the clamping mechanism comprises a clamping part, a transmission connecting part and a power connecting part, wherein the clamping part is located in the receiving cavity, the power connecting part is located outside the fixed mold, and the power connecting part is connected to the power mechanism.

[0008] Preferably, the clamping portion comprises two swing arms, the two swing arms are hinged to the fixed mold, and a clamp mouth is connected to each swing arm.

[0009] Preferably, the transmission connection part includes two first connecting arms and two second connecting arms, the two first connecting arms are respectively hinged to the corresponding two second connecting arms, the ends of the two second connecting arms are hinged, and the two first connecting arms are respectively hinged to the two swing arms.

[0010] Preferably, the power connection part is a connection block, and the connection block is hinged to the two second connection arms.

[0011] Preferably, the power mechanism is a cylinder, the cylinder body of the cylinder is fixed to the workbench, and the piston rod of the cylinder is connected to the connecting block. The cylinder provides power to drive the connecting block to move forward and backward, and the opening and closing of the clamping part is realized through the transmission cooperation of the transmission connection part. When the pressing structure is opened, the half shaft is clamped and fixed by the clamping part to prevent the half shaft from tipping over.

[0012] Preferably, in order to conveniently know the switch state of the clamping mechanism, a mounting plate is provided on the workbench, and a proximity switch for detecting the position of the connection block is installed on the mounting plate. The proximity switch can obtain the switch state of the clamping part by detecting the position of the connection block.

[0013] Preferably, in order to improve operation safety, a clamping robot for transferring the half-shaft is provided on one side of the pre-piercing machine. The clamping robot adopts the existing structure, and the clamping robot is used in conjunction with the clamping mechanism. When the clamping robot clamps the half-shaft, the clamping part opens, and the clamping robot transfers the half-shaft away.

[0014] The beneficial effects of the utility model are:

[0015] When the pressing structure is closed, the clamping part is in an open state. When the pressing structure is opened, the half-axle is clamped and fixed by the clamping part to prevent the half-axle from tipping over and avoid direct manual contact with the half-axle, greatly reducing production safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the clamp of the utility model;

[0017] Figure 2 This is a schematic diagram of the closed state structure of the press-fit structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model in the open state of the pressing structure;

[0019] As shown in the figure:

[0020] 1. Pliers mouth, 2. Swing arm, 3. First connecting arm, 4. Second connecting arm, 5. Connecting block, 6. Workbench, 7. Movable mold, 8. Fixed mold, 9. Cylinder, 10. Mounting plate, 11. Proximity switch, 12. Storage chamber, 13. Accommodating chamber, 14. Half shaft. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0022] like Figure 1-3 As shown, the utility model includes a pressing structure arranged on the workbench 6 of the pre-pier machine, and the pressing structure includes a fixed mold 8 fixedly arranged on the workbench 6 and a movable mold 7 hinged to the fixed mold 8, and the movable mold 7 is driven by an opening and closing cylinder to realize opening and closing. A receiving groove is respectively provided on the fixed mold 8 and the movable mold 7, and the two receiving grooves are buckled to form an accommodating cavity 13 for accommodating the half shaft. A receiving cavity 12 connected to the accommodating cavity 13 is provided on the fixed mold 8, and a clamping mechanism is installed in the accommodating cavity 12. The clamping mechanism includes a clamping part, a transmission connecting part and a power connecting part, the clamping part is located in the accommodating cavity 13, the power connecting part is located outside the fixed mold 8, and the power connecting part is connected to the power mechanism.

[0023] In this embodiment, the clamping part includes two swing arms 2, the two swing arms 2 are hinged to the fixed mold 8, and a clamp mouth 1 is connected to each swing arm 2. The transmission connection part includes two first connecting arms 3 and two second connecting arms 4, the two first connecting arms 3 are respectively hinged to the corresponding two second connecting arms 4, the ends of the two second connecting arms 4 are hinged, and the two first connecting arms 3 are respectively hinged to the two swing arms 2. The power connection part is a connecting block 5, and the connecting block 5 is hinged to the two second connecting arms 4.

[0024] In this embodiment, the power mechanism is a cylinder 9, the cylinder body of the cylinder 9 is fixed to the workbench 6, and the piston rod of the cylinder 9 is connected to the connecting block 5. The cylinder 9 provides power to drive the connecting block 5 to move forward and backward, and the opening and closing of the clamping part is realized through the transmission cooperation of the transmission connection part. When the pressing structure is opened, the half shaft is clamped and fixed by the clamping part to prevent the half shaft from tipping over.

[0025] In this embodiment, in order to conveniently know the switch state of the clamping mechanism, a mounting plate 10 is provided on the workbench 6, and a proximity switch 11 for detecting the position of the connecting block 5 is installed on the mounting plate 10. The proximity switch 11 can obtain the switch state of the clamping part by detecting the position of the connecting block 5.

[0026] In this embodiment, in order to improve the safety of operation, a clamping robot (not shown in the figure) for transferring the half-shaft is provided on one side of the pre-piercing machine. The clamping robot adopts the existing structure, and the clamping robot is used in conjunction with the clamping mechanism. When the clamping robot clamps the half-shaft, the clamping part opens, and the clamping robot transfers the half-shaft away.

[0027] During specific use, when the pressing structure is closed, the clamping part is in an open state. When the pressing structure is opened, the half-shaft 14 is clamped and fixed by the clamping part to prevent the half-shaft from tipping over and avoid direct manual contact with the half-shaft, greatly reducing production safety hazards.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. The half-axle clamping device of the pre-piercing machine is characterized by: It includes a pressing structure arranged on the workbench of the pre-pier machine, the pressing structure includes a fixed mold fixedly arranged on the workbench and a movable mold hinged to the fixed mold, a receiving groove is respectively provided on the fixed mold and the movable mold, and the two receiving grooves are buckled to form an receiving cavity for receiving the half-axle; a receiving cavity connected to the receiving cavity is provided on the fixed mold, and a clamping mechanism is installed in the receiving cavity; the clamping mechanism includes a clamping part, a transmission connecting part and a power connecting part, the clamping part is located in the receiving cavity, the power connecting part is located outside the fixed mold, and the power connecting part is connected to the power mechanism.

2. The half-axle clamping device for a pre-piercing machine according to claim 1 is characterized in that: The clamping part comprises two swing arms, which are hinged to the fixed mold, and a clamp mouth is respectively connected to each swing arm.

3. The half-axle clamping device for a pre-piercing machine according to claim 2 is characterized in that: The transmission connection part includes two first connection arms and two second connection arms, the two first connection arms are respectively hinged to the corresponding two second connection arms, the ends of the two second connection arms are hinged, and the two first connection arms are respectively hinged to the two swing arms.

4. The half-axle clamping device for a pre-piercing machine according to claim 3 is characterized in that: The power connection part is a connection block, and the connection block is hinged to the two second connection arms.

5. The half-axle clamping device for a pre-piercing machine according to claim 4 is characterized in that: The power mechanism is a cylinder, a cylinder body of the cylinder is fixed to the workbench, and a piston rod of the cylinder is connected to a connecting block.

6. The half-axle clamping device for a pre-piercing machine according to claim 4 is characterized in that: A mounting plate is arranged on the workbench, and a proximity switch for detecting the position of the connection block is mounted on the mounting plate.

7. The half-axle clamping device for a pre-piercing machine according to claim 1 is characterized in that: A clamping robot for transferring the half-axle is arranged on one side of the pre-piercing machine.

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