Multi-station pneumatic clamp for aluminum support

Abstract

A multi-station pneumatic clamp for an aluminum support comprises a fixing plate and at least one pneumatic rotary lifting set arranged at the bottom of the fixing plate. The device comprises a first air cylinder and two second air cylinders, air inlet and outlet holes in the same positions of the air cylinders are communicated, the telescopic end of the first air cylinder is fixedly provided with a first pressing piece, the two ends of the first pressing piece are each provided with a first pressing end, the telescopic ends of the second air cylinders are provided with a second pressing piece, and one end of the second pressing piece is provided with a second pressing end. The two second pressing pieces are in central symmetry with the first air cylinder as the center point, the positions, corresponding to the first pressing ends and the second pressing ends, of the top of the fixing plate are each provided with an aluminum support machining station, and the air cylinders are matched with the corresponding pressing pieces to be provided with telescopic synchronous rotating assemblies. Any first air cylinder or any second air cylinder of one pneumatic rotary lifting set communicates with an air source through an electromagnetic valve, the control end of the electromagnetic valve is connected with a controller, the multiple aluminum supports are positioned and fixed, follow-up aluminum support machining is facilitated, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts processing equipment, and particularly relates to a multi-station pneumatic fixture for aluminum brackets. Background Art

[0002] In the process of mechanical manufacturing, a device used to fix the processing object to make it occupy the correct position to receive construction or inspection is also called a fixture. Generally speaking, in any process of the technological process, a device used to quickly, conveniently and safely install the workpiece can be called a fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common and are often simply referred to as fixtures. When machining a workpiece on a machine tool, in order to make the surface of the workpiece meet the technical requirements such as the dimensions, geometric shapes and the mutual position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned) and clamped firmly (clamped) before machining.

[0003] As one of the parts for automobile chassis assembly, the aluminum bracket needs to be processed at specific hole positions. In the traditional aluminum bracket processing process, the existing fixtures can generally only fix one at a time and cannot fix multiple aluminum brackets simultaneously, resulting in low processing efficiency of the aluminum brackets. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-station pneumatic fixture for aluminum brackets to solve the problem that the existing clamping tooling cannot synchronously fix multiple aluminum brackets as proposed in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-station pneumatic fixture for aluminum brackets includes a fixed plate and at least one pneumatic rotary lifting group arranged at the bottom of the fixed plate; the pneumatic rotary lifting group includes a first cylinder and two second cylinders, each cylinder penetrates upward through the fixed plate, the fixed plate is provided with installation through slots in cooperation with the cylinders, the air inlet and outlet holes at the same position among the cylinders are communicated, a first pressing member is fixedly arranged at the telescopic end of the first cylinder, a first pressing end is arranged at each end of the first pressing member, a second pressing member is arranged at the telescopic end of the second cylinder, a second pressing end is arranged at one end of the second pressing member, and the two second pressing members are centrosymmetric with the first cylinder as the center point. An aluminum bracket processing position is arranged at the top of the fixed plate corresponding to each position where the first pressing end and the second pressing end are located, and a positioning member in cooperation is arranged at the aluminum bracket processing position; each cylinder is provided with a telescopic synchronous rotation component in cooperation with the corresponding pressing member;

[0007] Any one of the first cylinders or the second cylinders of one of the pneumatic rotary lifting groups is communicated with the air source through a solenoid valve, and the control end of the solenoid valve is connected to a controller.

[0008] Preferably, the synchronous rotation assembly includes a slider fixedly arranged on the side of the piston and a slideway arranged on the inner wall of the cylinder in cooperation with the slider. The slideway is spiral, and the height of the slideway is the telescopic stroke of the cylinder.

[0009] Preferably, the solenoid valve is a two-position five-way valve.

[0010] Preferably, throttle valves are arranged on each air inlet and outlet hole of the first cylinder and the second cylinder in a matching manner.

[0011] Preferably, the synchronous rotation assembly includes a slider fixedly arranged on the side of the piston and a slideway arranged on the inner wall of the cylinder in cooperation with the even-numbered slider. The slideway includes a first slideway and a second slideway. The first slideway is spiral, the second slideway is linear, and the first slideway is communicated with the second slideway.

[0012] Preferably, fixing rods are embedded on one side of the first pressing member and the second pressing member close to the fixing plate. The fixing plate is provided with pressure sensors in cooperation with the ends of the fixing rods, and all the pressure sensors are connected to the controller.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, by arranging at least one pneumatic rotary lifting group, each pneumatic rotary lifting group can position and fix two aluminum brackets, which is convenient for subsequent processing of the aluminum brackets and improves the processing efficiency.

[0015] In the present utility model, by respectively arranging a pressure rod and a pressure sensor on each pressing member and the fixing plate, the next step of processing is carried out after ensuring that all the aluminum brackets are positioned and fixed, which ensures the reliability of subsequent processing. Description of the Drawings

[0016] Figure 1 It is a top view of the present utility model.

[0017] Figure 2 It is a three-dimensional structure diagram of the present utility model.

[0018] Figure 3 It is a bottom view of the present utility model.

[0019] Figure 4 It is a three-dimensional structure diagram of the cylinder in Embodiment 1.

[0020] Figure 5 It is a top view of the cylinder in Embodiment 1.

[0021] Figure 6 It is a three-dimensional structure diagram of the cylinder in Embodiment 2.

[0022] Markings in the figure: 1 - fixed plate, 2 - first cylinder, 3 - second cylinder, 4 - first pressing member, 41 - first pressing end, 5 - second pressing member, 51 - second pressing end, 61 - first positioning post, 62 - second positioning post, 7 - throttle valve, 81 - sliding member, 82 - slideway, 821 - first slideway, 822 - second slideway, 91 - fixed rod. Detailed implementation mode

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment

[0024] Refer to Figure 1 As shown, this embodiment provides a multi-station pneumatic fixture, which can position and clamp an aluminum bracket before chamfering two through holes A and B of the aluminum bracket. The multi-station pneumatic fixture includes a fixed plate and 4 pneumatic rotary lifting groups arranged in sequence from left to right at the bottom of the fixed plate. Each pneumatic rotary lifting group is used to position and fix 2 aluminum brackets, and the 4 pneumatic rotary lifting groups are jointly connected through pipelines to achieve synchronous operation, so as to position and press the aluminum brackets at 8 stations.

[0025] Combined with Figures 2 - 3 As shown, each pneumatic rotary lifting group includes three cylinders of the same model and a telescopic synchronization component arranged on each cylinder. The connecting ends of all cylinders are fixedly connected to the fixed plate, and the telescopic ends of the cylinders penetrate through the fixed plate upward. The fixed plate is provided with an installation through groove for the cylinders to pass through in cooperation with the cylinders; the cylinder includes a cylinder barrel, a piston, a piston rod and two air inlet and outlet through holes, etc. The two air inlet and outlet through holes are arranged on the cylinder barrel on the upper and lower sides of the piston, that is, the upper air inlet and outlet through hole and the lower air inlet and outlet through hole; the air inlet through holes on all cylinders in all pneumatic rotary lifting groups are connected, and the lower air outlet through holes on all cylinders in all pneumatic rotary lifting groups are connected. The telescopic synchronization component includes a sliding member fixedly arranged on the side of the piston and a slideway arranged on the inner side wall of the cylinder barrel in cooperation with the sliding member. The slideway is spiral, and the height of the slideway is the telescopic stroke of the cylinder, so that the piston rod can rotate while telescoping.

[0026] In the present invention, as long as any one of the first cylinders or the second cylinders in one pneumatic rotary lifting group is connected to the air source through a two-position five-way solenoid valve, the synchronous telescopic movement of all cylinder piston rods can be realized, and the control end of the solenoid valve is connected to the controller. This is a conventional technical means in the art and will not be elaborated here.

[0027] Among the three cylinders in the pneumatic rotary lifting group, there is one first cylinder and two second cylinders. A first pressing member is fixedly arranged at the telescopic end of the first cylinder, and a first pressing end is arranged at each end of the first pressing member. A second pressing member is arranged at the telescopic end of the second cylinder, and the two second pressing members are centrosymmetric with the first cylinder as the center point. Aluminum bracket processing positions are arranged at the top of the fixing plate corresponding to the positions where each first pressing end and the second pressing end are located. The aluminum brackets at these two processing positions are arranged centrosymmetrically with the first cylinder as the center. A matching positioning member is arranged at each aluminum bracket processing position, and the positioning member includes a first positioning post and a second positioning post that are arranged to cooperate with two through holes on the aluminum bracket.

[0028] In this embodiment, when the piston rod extends, the orthographic projections of the first pressing member and the second pressing member are not on the corresponding aluminum bracket processing positions, so it is convenient to install the aluminum bracket on the fixing plate. When the piston rod retracts to completion, the orthographic projections of the first pressing member and the second pressing member are on the corresponding aluminum bracket processing positions to clamp the aluminum bracket.

[0029] Furthermore, throttling valves that match each other are arranged on the air inlet and outlet through holes of the first cylinder and the second cylinder to adjust the telescopic speed of the piston rod. Embodiment

[0030] In this embodiment, the telescopic synchronization component includes a sliding member fixedly arranged on the side of the piston and a slideway arranged on the inner side wall of the cylinder barrel to cooperate with the sliding member. The height of the slideway is the telescopic stroke of the piston rod. The slideway includes a first slideway and a second slideway. The second slideway is arranged at the bottom of the first slideway. The first slideway is spiral, and the second slideway is a vertical straight line. When the piston rod retracts, the first pressing member and the second pressing member rotate synchronously to a specified position under the action of the first slideway, and then retract and clamp the aluminum bracket under the action of the second slideway. Fixing rods are fixedly arranged on the lower sides of the first pressing member and the second pressing member. The fixing plate is provided with pressure sensors to cooperate with the ends of the fixing rods. All the pressure sensors are connected to a controller, and the controller judges whether the pressure sensing data reaches a preset value. When it reaches the preset value, it indicates that the pressing and fixing of the aluminum bracket by the first pressing member or the second pressing member is completed. When there is a situation where some pressing members are pressed and fixed while some are not, the controller will report an error at this time and send an alarm through the connected alarm. At this time, the processing mechanism will not perform processing to reduce the unqualified rate of aluminum bracket processing.

[0031] The above-described embodiments are only the preferred solutions of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A multi-station pneumatic fixture for an aluminum bracket, characterized in that, It includes a fixed plate and at least one pneumatic rotary lifting group arranged at the bottom of the fixed plate; the pneumatic rotary lifting group includes a first cylinder and two second cylinders. Each cylinder penetrates the fixed plate upwards, and the fixed plate is provided with installation through grooves for cooperating with the cylinders. The air inlet and outlet holes at the same positions among the cylinders are communicated. A first pressing member is fixedly arranged at the telescopic end of the first cylinder, and a first pressing end is arranged at each end of the first pressing member. A second pressing member is arranged at the telescopic end of the second cylinder, and a second pressing end is arranged at one end of the second pressing member. The two second pressing members are centrosymmetric with the first cylinder as the center point. At the top of the fixed plate, an aluminum bracket processing position is arranged corresponding to the position where each first pressing end and second pressing end are located, and a positioning member in cooperation is arranged on the aluminum bracket processing position; each cylinder is provided with a telescopic synchronous rotation assembly in cooperation with the corresponding pressing member; Any one of the first cylinders or second cylinders of one of the pneumatic rotary lifting groups is communicated with the air source through a solenoid valve, and the control end of the solenoid valve is connected to the controller.

2. The multi-station pneumatic fixture for an aluminum bracket according to claim 1, characterized in that, The telescopic synchronous rotation assembly includes a sliding member fixedly arranged on the side of the piston of the first cylinder or the second cylinder, and a slideway arranged on the inner wall of the first cylinder or the second cylinder in cooperation with the sliding member. The slideway is spiral, and the height of the slideway is the telescopic stroke of the first cylinder or the second cylinder.

3. The multi-station pneumatic fixture for an aluminum bracket according to claim 1, wherein The solenoid valve is a two-position five-way valve.

4. The multi-station pneumatic fixture for an aluminum bracket according to claim 1, characterized in that Throttle valves in cooperation are arranged on each air inlet and outlet hole of the first cylinder and the second cylinder.

5. The multi-station pneumatic fixture for an aluminum bracket according to claim 1, characterized in that The telescopic synchronous rotation assembly includes a sliding member fixedly arranged on the side of the piston of the first cylinder or the second cylinder, and a slideway arranged on the inner wall of the first cylinder or the second cylinder in cooperation with the sliding member. The slideway includes a first slideway and a second slideway. The first slideway is spiral, the second slideway is linear, and the first slideway is communicated with the second slideway.

6. The multi-station pneumatic fixture for an aluminum bracket according to claim 5, characterized in that Fixing rods are embedded on the side of the first pressing end and the second pressing end close to the fixed plate, and pressure sensors are arranged on the fixed plate in cooperation with the ends of the fixing rods. All the pressure sensors are connected to the controller.

7. The multi-station pneumatic fixture for an aluminum bracket according to claim 1, characterized in that, The positioning member includes a first positioning column and a second positioning column that cooperate with the aluminum bracket.

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