Locating and clamping mechanism for controlling crotch opening of workpiece

Abstract

The utility model belongs to the technical field of automobile production, and particularly relates to a piece crotch opening control positioning clamping mechanism which comprises a base plate, a sliding mechanism, a limiting mechanism and a clamping mechanism, the sliding mechanism, the limiting mechanism and the clamping mechanism are installed on the base plate, the sliding mechanism drives the clamping mechanism to move, and the limiting mechanism is used for limiting the sliding mechanism. According to the mechanism, the crotch opening size of a workpiece can be accurately controlled, and the positioning pin, the positioning pin seat and the plug block can be adjusted according to the requirements (positive difference and negative difference) of the workpiece; the positioning function and the positioning precision are guaranteed while the number of the positioners is reduced, the machining and debugging cost of the positioners is reduced, the space needed for installing the positioners is reduced, spare parts of machined parts and purchased parts are easy to replace, and the efficiency in debugging and production is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile production, and in particular relates to a crotch opening control positioning clamping mechanism. Background Art

[0002] In the process of automobile production, parts are positioned and clamped using multiple sets of positioners. In the early debugging and production process, multiple sets of positioners need to be adjusted according to the size of different batches of parts or after welding to improve the accuracy, which increases the difficulty and time of debugging and causes a certain degree of resource waste. In addition, the large number of positioner drive units is not conducive to controlling material costs, which increases the manufacturing and procurement costs accordingly. Therefore, providing a positioning mechanism that can save waste of resources and control the crotch size of parts has become one of the urgent problems that designers in this field need to solve. Utility Model Content

[0003] The utility model aims to provide a crotch opening control positioning clamping mechanism to solve the problems existing in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crotch opening control positioning clamping mechanism, comprising a base plate and a sliding mechanism, a limiting mechanism and a clamping mechanism installed on the base plate, the sliding mechanism drives the clamping mechanism to move, the limiting mechanism is used to limit the sliding mechanism, the clamping mechanism comprises a clamping cylinder, a first connecting plate, a second connecting plate, a first height-making column, a second height-making column, a clamping arm, a plug, a first connecting block, a positioning pin seat, a second connecting block and a third connecting block, the second connecting plate is fixed on the sliding mechanism, the first connecting plate and the second connecting plate are connected by the first height-making column and the second height-making column The clamping cylinder is fixed on one side of the second connecting plate, and there are two clamping arms. The piston rod of the clamping cylinder is hinged to the middle part of the clamping arm, one end of the clamping arm is connected to the piston rod of the clamping cylinder, and the other end of the clamping arm is connected to one end of the third connecting block, and the other end of the third connecting block is fixedly connected to the second connecting block, and the inner side of the second connecting block is connected to the positioning pin seat, and a positioning pin is fixed on the inner side of the positioning pin seat, and the first connecting block is fixed between the first connecting plate and the second connecting plate, and the plug blocks are fixed on both sides of the front end of the first connecting block, and the plug blocks correspond to the positioning pins.

[0005] Preferably, the sliding mechanism includes a sliding cylinder, a first connecting block, a linear slide rail and a sliding plate; the sliding cylinder is fixed on the base plate, there are four first connecting blocks, which are respectively fixed on the base plate, a linear slide rail is installed between the corresponding two first connecting blocks, the bottom of the sliding plate is slidably connected to the linear slide rail, and the sliding plate is fixedly connected to the second connecting plate.

[0006] Preferably, a proximity switch is installed on the positioning pin seat.

[0007] Preferably, a handle assembly is fixed to the upper portion of the first connecting plate, the handle assembly is hinged to the middle portion of the operating handle, the lower portion of the operating handle is hinged to the hinge block, and the hinge block is hinged to the other end of the piston rod of the clamping cylinder.

[0008] Preferably, a slide rail shield is fixed between the first connecting plates.

[0009] The beneficial effects of the utility model are as follows: the mechanism can complete the precise control of the crotch size of the workpiece, and the locating pin, the locating pin seat and the plug block can be adjusted according to the workpiece requirements (positive difference or negative difference); while saving the number of locators, the positioning function and positioning accuracy are guaranteed, and the processing and debugging costs and the space required for installing the locator are reduced. The processed parts and purchased parts are easy to replace with spare parts, thereby improving the efficiency in debugging and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Axonometric view of the utility model;

[0011] Figure 2 Axial view of the sliding mechanism in the utility model;

[0012] Figure 3 Axial view of the clamping mechanism in the utility model;

[0013] Figure 4 Detailed view of the clamping mechanism in the utility model;

[0014] Figure 5 A side view of the workpiece axis positioned by the overall mechanism in the utility model;

[0015] Part number and name of attached picture:

[0016] ①1.1-base plate, 1.2-cylinder, 1.3-slide rail shield, 1.4-first connecting block, 1.5-linear slide rail, 1.6-slide plate, 1.7-second connecting block, 1.8-limiting block, 1.9-collision block, 1.10-adjusting gasket, 1.11-cylinder connecting block, 1.12-cylinder drive connecting block;

[0017] ②2.1-clamping cylinder, 2.2-equal height bolts, 2.3-operating handle, 2.4-handle assembly, 2.5-hinge block, 2.6-first connecting plate, 2.7-first height-making column, 2.8-second connecting plate, 2.9-proximity switch, 2.10-block, 2.11-first connecting block, 2.12-locating pin seat, 2.13-locating pin, 2.14-second connecting block, 2.15-clamping arm, 2.16-second height-making column, 2.17-third connecting block, 2.18-Y-shaped joint, 2.19-block adjustment gasket, 2.20-first adjustment gasket, 2.21-second adjustment gasket, 2.22-third adjustment gasket, 2.23-first shaft pin, 2.24-second shaft pin, 2.25 fourth connecting block. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0019] like Figure 1-4 As shown, a crotch opening control positioning clamping mechanism comprises a base plate and a sliding mechanism 1, a limiting mechanism 2 and a clamping mechanism 3 installed on the base plate;

[0020] Sliding mechanism: This mechanism is directly driven by the cylinder. When the piston rod of the 1.2 cylinder is extended, it is the working position, and when the piston rod is retracted, it is the standby position; components: first, the cylinder piston rod head is fixedly connected with the 1.12 cylinder drive connecting block, the cylinder body is fixedly connected with the 1.11 cylinder connecting block, the 1.11 cylinder connecting block is fixedly connected with the 1.1 base plate, the 1.12 cylinder drive connecting block is fixedly connected with the 1.6 sliding plate, the 1.5 linear slide is divided into 2 parts, and the slider is connected with the 1.6 sliding plate. The guide rail part is fixedly connected to the 1.1 base plate, the 1.4 first connecting block and the 1.7 second connecting block are both installed and fixedly connected to the 1.1 base plate, the 1.3 slide rail guard is installed and fixedly connected to the 1.4 first connecting block, the 1.9 impact block is fixedly connected to the 1.6 sliding plate, the 1.8 limit block is fixedly connected to the 1.7 second connecting block and the 1.10 adjustment gasket is installed to adjust the position of the 1.6 sliding plate and other fixed parts after they are in place, so as to control the repeatability and limit function.

[0021] Clamping mechanism: This mechanism is directly driven by the cylinder, and the whole mechanism is installed on the 1.6 sliding plate of the above sliding mechanism; the front end positioning pin assembly is controlled by the 2.1 cylinder to open or close. When the piston rod is extended, the positioning pin assembly is in the standby position, and when the piston rod is retracted, the positioning pin assembly is in the clamping position; components: first, the 2.1 cylinder body is fixedly connected with the 2.6 first connecting plate and the 2.8 second connecting plate, and the 2.7 first supplementary height column is installed (the bolts penetrate the 2.6 first connecting plate and the 2.7 first supplementary height column and are screwed with the 2.8 second connecting plate), the 2.8 second connecting plate is fixedly connected with the 1.6 sliding plate of the sliding mechanism, the cylinder piston rod is fixedly connected with the 2.18 Y-shaped joint, and the 2.18 Y-shaped joint is connected with the 2.15 clamping arm using 2.24 The second axle pin is installed in the form of a slide groove and is hinged with the 2.16 height-adding column and the 2.6 first connecting plate and the 2.8 second connecting plate, so that the clamping arm can be rotated open and closed around the 2.23 first axle pin as the center. The 2.14 second connecting block is fixedly connected with the 2.15 clamping arm and the 2.22 third adjusting gasket is installed. The 2.17 third connecting block is fixedly connected with the 2.14 second connecting block and the 2.21 second adjusting gasket is installed. The 2.12 positioning pin seat is fixedly connected with the 2.14 second connecting block and the 2.20 first adjusting gasket is installed. The 2.13 positioning pin is fixedly connected with the 2.12 positioning pin seat by means of top screw. The above first adjusting gasket, second adjusting gasket and third adjusting gasket are used to adjust the XYZ of the 2.13 positioning pin. 3-way precision dimensions; 2.11 first connection block is fixedly connected with 2.6 first connection plate and 2.8 second connection plate, 2.10 plug block is fixedly connected with 2.11 first connection block and 2.19 plug block adjustment gasket is installed to control the crotch size of the parts; 2.4 handle assembly is fixedly connected with 2.6 connection plate, 2.25 fourth connection block is fixedly connected with the rear end piston rod of the cylinder, 2.3 operating handle and 2.5 hinge block are hingedly installed with 2.2 equal height bolts to realize manual opening or closing of 2.15 clamping arm and its connecting parts;

[0022] Action steps:

[0023] ①In the initial state, cylinders 1.2 and 2.1 are in standby state, and cylinder 2.1 is in deflated state;

[0024] ② During operation, 1.2 the cylinder is extended to put the clamping mechanism in place, the parts to be positioned are placed manually and clamped manually 2.3 the operating handle is used to clamp the front clamping arm and its connecting parts (locating pins and their adjusting connecting blocks) in place, 2.1 the cylinder is retracted after being ventilated, and the workpiece is successfully positioned on the clamping mechanism, which is convenient for subsequent operations;

[0025] ③ When the work is completed, the 2.1 cylinder is first ventilated and extended into place to clamp the front clamping arm and its connecting parts (locating pins and their adjusting connecting blocks) into place. The 2.1 cylinder is ventilated and retracted into place. After it is in place, the 1.2 cylinder is retracted, the parts are removed manually, and the 2.1 cylinder returns to the deflated state to enter the next cycle.

[0026] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A crotch opening control positioning clamping mechanism, characterized in that : It includes a base plate and a sliding mechanism, a limiting mechanism and a clamping mechanism installed on the base plate, the sliding mechanism drives the clamping mechanism to move, the limiting mechanism is used to limit the sliding mechanism, the clamping mechanism includes a clamping cylinder, a first connecting plate, a second connecting plate, a first height-making column, a second height-making column, a clamping arm, a plug, a first connecting block, a positioning pin seat, a second connecting block and a third connecting block, the second connecting plate is fixed on the sliding mechanism, the first connecting plate and the second connecting plate are connected by the first height-making column and the second height-making column, the clamping cylinder is fixed on the second connecting plate On one side of the plate, there are two clamping arms, the piston rod of the clamping cylinder is hinged to the middle part of the clamping arm, one end of the clamping arm is connected to the piston rod of the clamping cylinder, the other end of the clamping arm is connected to one end of the third connecting block, the other end of the third connecting block is fixedly connected to the second connecting block, the inner side of the second connecting block is connected to the positioning pin seat, a positioning pin is fixed to the inner side of the positioning pin seat, the first connecting block is fixed between the first connecting plate and the second connecting plate, the plug blocks are fixed on both sides of the front end of the first connecting block, and the plug blocks correspond to the positioning pins.

2. The crotch opening control positioning clamping mechanism according to claim 1, characterized in that: The sliding mechanism includes a sliding cylinder, a first connecting block, a linear slide rail and a sliding plate; the sliding cylinder is fixed on the base plate, there are four first connecting blocks, which are respectively fixed on the base plate, a linear slide rail is installed between two corresponding first connecting blocks, the bottom of the sliding plate is slidably connected to the linear slide rail, and the sliding plate is fixedly connected to the second connecting plate.

3. The crotch opening control positioning clamping mechanism according to claim 1, characterized in that: A proximity switch is installed on the positioning pin seat.

4. The crotch opening control positioning clamping mechanism according to claim 1, characterized in that: A handle assembly is fixed to the upper portion of the first connecting plate, the handle assembly is hinged to the middle portion of the operating handle, the lower portion of the operating handle is hinged to the hinge block, and the hinge block is hinged to the other end of the piston rod of the clamping cylinder.

5. The crotch opening control positioning clamping mechanism according to claim 1, characterized in that: A slide rail shield is fixed between the first connecting plates.

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