Pneumatic clamp for precise machining of electromagnetic valve sleeve

Abstract

The utility model discloses a pneumatic clamp for precise machining of a valve sleeve of an electromagnetic valve, and relates to the technical field of pneumatic clamps. The device comprises a cylinder group and a clamp assembly, the clamp assembly comprises a base, a supporting plate, a clamp fixing plate and a clamp sliding plate. A support plate is fixed on the base; a clamp fixing plate is fixed on the support plate; a clamp sliding plate is in sliding fit with the support plate; a machining clamping groove is formed between the clamp fixing plate and the clamp sliding plate. A valve sleeve is clamped on the inner wall of the machining clamping groove; the air cylinder set is fixed to the supporting plate and fixed to the back face of the clamp sliding plate. A positioning rod is fixed on the clamp sliding plate; a positioning groove is formed in the peripheral side surface of the valve sleeve; a strip-shaped through hole is formed in the positioning rod, and a laser distance measuring sensor is fixed to the clamp sliding plate. Under the action of the air cylinder set, the clamp assembly and the positioning correction assembly, whether the relative position between the positioning rod and the positioning groove changes due to abrasion or not is judged by detecting the distance in real time, and therefore machining errors are prevented from being increased in time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pneumatic clamp technical field, especially, relate to a pneumatic clamp for accurate processing of electromagnetic valve sleeve. BACKGROUND

[0002] At present, the clamp for workpiece machining is mainly divided into hydraulic clamp, pneumatic clamp and ordinary manual clamp. Among them, the hydraulic clamp has the characteristics of high precision, large clamping force and stability, but its manufacturing process is complex and high in cost, and it needs to be equipped with a hydraulic station for use, which is relatively troublesome to use and install, so its application is relatively limited. The pneumatic clamp has the characteristics of high precision, efficient and stable operation and faster response speed. The ordinary manual clamp has the characteristics of simple structure and low precision, and the screw clamping and clamping are slow and low in efficiency. Therefore, the application of pneumatic clamp is relatively wide. Among them, the existing pneumatic clamp will appear wear and tear in the positioning mechanism and other parts after long time work, which reduces the positioning accuracy and leads to the increase of workpiece machining error, thereby reducing the product quality and the qualified rate. In addition, the workpiece may also deviate during machining, which may also cause large machining error of the workpiece.

[0003] In view of the above problem of increasing workpiece machining error, the utility model designs a pneumatic clamp for accurate processing of electromagnetic valve sleeve. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pneumatic clamp for accurate processing of electromagnetic valve sleeve, which can detect the distance between the positioning rod and the positioning groove in real time through the action of the cylinder group, the clamp assembly and the positioning and correction assembly. If the relative position between the positioning rod and the positioning groove changes due to wear, the data of distance measurement can be obtained to replace the new parts in time, so as to avoid the gradual expansion of workpiece machining error and reduce the quality and qualified rate of workpiece. The above problem of increasing workpiece machining error is solved.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a pneumatic clamp for accurate machining of electromagnetic valve sleeve, including cylinder group, clamp assembly and positioning correction subassembly, the clamp assembly includes base, support plate, clamp fixed plate and clamp sliding plate, the support plate is fixedly installed on the base upper surface, the clamp fixed plate is fixedly installed on the support plate upper surface, and the clamp sliding plate is slidably connected to the support plate upper surface, a plurality of processing clamping grooves are formed between the clamp fixed plate and the clamp sliding plate, the valve sleeve is clamped in the inner wall of each processing clamping groove, the cylinder group bottom is fixedly installed on the support plate, and the telescopic end of the cylinder group is fixedly installed on the back of the clamp sliding plate, the positioning rod is fixedly installed on the clamp sliding plate upper surface, the positioning groove is formed in the circumferential surface of the valve sleeve, and the positioning rod is matched with the inner wall of the positioning groove, the positioning correction subassembly includes laser ranging sensor, a strip through hole is formed in the positioning rod, the laser ranging sensor is aligned with the strip through hole, the laser ranging sensor is fixedly installed on the clamp sliding plate, the sliding position of the clamp sliding plate is controlled by the cylinder group, thereby the clamping and disengaging of the clamp sliding plate to the valve sleeve is controlled, the positioning rod and the positioning groove guarantee the clamping and positioning function of the valve sleeve and guarantee the precision of processing, the laser ranging sensor in the positioning correction subassembly functions through the real-time detection of the distance between the positioning rod and the positioning groove, when the distance exceeds the set range, the position of the positioning rod and the valve sleeve deviates, and the deviation exceeds the set range, if the workpiece continues to be processed, the processing error increases, and the quality and the pass rate of the product are reduced, when the microprocessor judges that the value detected by the laser ranging sensor is abnormal, the indicator light is controlled to be red, so that the staff can find and handle in time, and the advantages of timely finding component aging and guaranteeing the stability of workpiece processing quality are achieved.

[0007] As a preferred technical scheme of the utility model, the limit guide column is fixedly installed on one side of the clamp fixed plate close to the clamp sliding plate, the guide groove is formed in one side of the clamp sliding plate close to the clamp fixed plate, and the limit guide column is slidably matched with the inner wall of the guide groove, so that the stability of the clamp sliding plate sliding on the support plate and the movement of the clamp sliding plate to the specified position are guaranteed.

[0008] As a preferred technical scheme of the utility model, the center line of the strip through hole passes through the laser ranging sensor and the positioning groove, and the center of the laser ranging sensor, the strip through hole and the positioning groove is located on the same straight line.

[0009] As a preferred technical scheme of the utility model, the vertical plane is arranged on the inner wall of the positioning groove; the laser ranging sensor is aligned to the vertical plane; and the included angle between the center line of the strip-shaped through hole and the vertical plane is an acute angle. When the position of the valve sleeve is offset in the horizontal direction, the distance between the laser ranging sensor and the vertical plane changes, which is equivalent to the change of the distance between the positioning rod and the positioning groove.

[0010] As a preferred technical scheme of the utility model, the vertical plane is arranged on the inner wall of the positioning groove; the laser ranging sensor is aligned to the vertical plane; and the included angle between the center line of the strip-shaped through hole and the vertical plane is an acute angle. When the position of the valve sleeve is offset in the horizontal direction, the distance between the laser ranging sensor and the vertical plane changes, which is equivalent to the change of the distance between the positioning rod and the positioning groove.

[0011] As a preferred technical scheme of the utility model, the vertical plane is arranged on the inner wall of the positioning groove; the laser ranging sensor is aligned to the vertical plane; and the included angle between the center line of the strip-shaped through hole and the vertical plane is an acute angle. When the position of the valve sleeve is offset in the horizontal direction, the distance between the laser ranging sensor and the vertical plane changes, which is equivalent to the change of the distance between the positioning rod and the positioning groove.

[0012] The utility model has the following beneficial effects:

[0013] The utility model discloses a cylinder group, clamp assembly and positioning correction component's effect, the distance between the positioning rod and the positioning groove is detected in real time, if the relative position between the positioning rod and the positioning groove changes due to abrasion, it can be reflected on the data of ranging, so that the staff can replace the new component in time, avoid the abrasion degree too big and reduce the accuracy of positioning, and then avoid the quality and the problem of the pass rate of workpiece reduce, have the advantage that the component aging is discovered in time and the workpiece processing quality stability is guaranteed.

[0014] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. ACCURACY

[0015] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawing of the embodiment to introduce briefly, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not creating labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is the structure schematic view of the pneumatic clamp for the accurate machining of the electromagnetic valve sleeve of the utility model;

[0017] Figure 2 It is the structure schematic view of the pneumatic clamp for the accurate machining of the electromagnetic valve sleeve of the utility model;

[0018] Figure 3The structure schematic view of the positioning correction assembly and the positioning rod in the rear view angle of the utility model;

[0019] Figure 4 The structure schematic view of the positioning correction assembly and the positioning rod in the front view angle of the utility model;

[0020] Figure 5 The structure schematic view of the valve sleeve of the utility model;

[0021] In the drawings, the component list represented by each sign is as follows:

[0022] 1-cylinder group, 2-jig assembly, 3-positioning correction assembly, 4-valve sleeve, 201-base, 202-supporting plate, 203-jig fixing plate, 204-jig sliding plate, 205-machining clamping groove, 206-positioning rod, 207-strip-shaped through hole, 301-laser ranging sensor, 302-indicating lamp, 303-mounting seat, 401-positioning groove, 402-vertical plane. DETAILED DESCRIPTION

[0023] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4As shown, this utility model is a pneumatic clamp for precise machining of solenoid valve sleeves, including a cylinder assembly 1, a clamp assembly 2, and a positioning and correction assembly 3; the clamp assembly 2 includes a base 201, a support plate 202, a clamp fixing plate 203, and a clamp sliding plate 204; the support plate 202 is fixedly installed on the upper surface of the base 201, the clamp fixing plate 203 is fixedly installed on the upper surface of the support plate 202, and the clamp sliding plate 204 is slidably fitted on the upper surface of the support plate 202; four machining slots 205 are formed between the clamp fixing plate 203 and the clamp sliding plate 204; each machining slot 205... 5. Valve sleeves 4 are clamped to the inner walls of each component; the bottom surface of cylinder assembly 1 is fixedly mounted on support plate 202, and the telescopic end of cylinder assembly 1 is fixedly mounted to the back of clamp slide plate 204; a positioning rod 206 is fixedly mounted on the upper surface of clamp slide plate 204, and a positioning groove 401 is opened on the side of valve sleeve 4, with the positioning rod 206 cooperating with the inner wall of the positioning groove 401; the positioning correction component 3 includes a laser range sensor 301; a strip-shaped through hole 207 is opened on the positioning rod 206, and the width of the strip-shaped through hole 207 is in the range of 0.01mm-0.2mm according to actual production needs. The optimal value is set; the laser rangefinder 301 is aligned with the strip-shaped through hole 207; the laser rangefinder 301 is fixedly mounted on the clamping slide plate 204; the laser rangefinder 301 is a high-precision laser rangefinder; the cylinder group 1 controls the sliding position of the clamping slide plate 204, thereby controlling the clamping and releasing state of the clamping slide plate 204 on the valve sleeve 4; the positioning rod 206 and the positioning groove 401 ensure the clamping and positioning function of the valve sleeve 4, ensuring the machining accuracy; the function of the laser rangefinder 301 in the positioning correction assembly 3 is to detect the positioning rod in real time. The distance between the positioning rod 206 and the positioning groove 401 is within the set range. When the distance exceeds the set range, the position of the positioning rod 206 and the valve sleeve 4 will shift, and the degree of shift will exceed the set range. If the workpiece is processed at this time, it will lead to an increase in processing error, which will reduce the quality and pass rate of the product. When the microprocessor determines that the value detected by the laser range sensor 301 is abnormal, it will control the indicator light 302 to light up red so that the staff can discover and deal with it in time. It has the advantages of timely detection of component aging and ensuring the stability of workpiece processing quality.

[0025] Among them, such as Figure 1 As shown, a limiting guide post 208 is fixedly installed on the side of the clamp fixing plate 203 near the clamp sliding plate 204; a guide groove 209 is provided on the side of the clamp sliding plate 204 near the clamp fixing plate 203; the limiting guide post 208 slides in cooperation with the inner wall of the guide groove 209; the function of the limiting guide post 208 and the guide groove 209 is to ensure the smooth sliding of the clamp sliding plate 204 on the support plate 202 and to move it to the designated position.

[0026] Among them, such as Figures 3-5As shown in the figure, the straight line where the center line of the strip-shaped through hole 207 is located passes through the laser ranging sensor 301 and the positioning groove 401 at both ends, that is, the centers of the laser ranging sensor 301, the strip-shaped through hole 207 and the positioning groove 401 are located on the same straight line; the inner wall of the positioning groove 401 is provided with a vertical plane 402; the laser ranging sensor 301 is aligned towards the vertical plane 402; the included angle between the center line of the strip-shaped through hole 207 and the vertical plane 402 is an acute angle; due to the existence of the included angle, when the position of the valve sleeve 4 is offset in the horizontal direction to a certain extent, the distance between the laser ranging sensor 301 and the vertical plane 402 will change, which is equivalent to the distance between the positioning rod 206 and the positioning groove 401 changing.

[0027] As shown in the figure, Figure 3 As shown in the figure, the bottom of the laser ranging sensor 301 is fixedly installed with a mounting seat 303; the back of the mounting seat 303 is fixedly installed with an indicating lamp 302, and the mounting seat 303 is fixedly installed on the clamp sliding plate 204; the four groups of laser ranging sensors 301 are electrically connected with a microprocessor, and the microprocessor is electrically connected with the four groups of indicating lamps 302; the microprocessor controls the on-off state and light color of the indicating lamp 302.

[0028] It is worth noting that in the above system embodiment, each unit included is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be realized; in addition, the specific name of each functional unit is only for easy mutual differentiation, and is not used to limit the protection scope of the utility model.

[0029] The above disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the utility model to be only the specific implementation mode described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited only by the claims and the entire scope and equivalents thereof.

Claims

1. A pneumatic clamp for precision machining of solenoid valve sleeves, characterized in that: It include cylinder group (1), clamp assembly (2) and positioning correction assembly (3); The clamp assembly (2) includes a base (201), a support plate (202), a clamp fixed plate (203) and a clamp sliding plate (204); the upper surface of the base (201) is fixedly installed with the support plate (202), the upper surface of the support plate (202) is fixedly installed with the clamp fixed plate (203), and the upper surface of the support plate (202) is slidably connected with the clamp sliding plate (204); a plurality of machining clamping grooves (205) are formed between the clamp fixed plate (203) and the clamp sliding plate (204); the inner wall of each machining clamping groove (205) is clamped with a valve sleeve (4); The bottom surface of the cylinder group (1) is fixedly installed on the support plate (202), and the telescopic end of the cylinder group (1) is fixedly installed on the back surface of the clamp sliding plate (204); the upper surface of the clamp sliding plate (204) is fixedly installed with a positioning rod (206), the peripheral surface of the valve sleeve (4) is provided with a positioning groove (401), and the positioning rod (206) is matched with the inner wall of the positioning groove (401); The positioning correction assembly (3) includes a laser ranging sensor (301); a strip-shaped through hole (207) is formed on the positioning rod (206), and the laser ranging sensor (301) is aligned with the strip-shaped through hole (207); the laser ranging sensor (301) is fixedly installed on the clamp sliding plate (204).

2. The pneumatic clamp for precision machining of a solenoid valve sleeve according to claim 1, characterized in that, The clamp fixed plate (203) is fixedly installed with a limiting guide column (208) on the side close to the clamp sliding plate (204); the clamp sliding plate (204) is provided with a guide groove (209) on the side close to the clamp fixed plate (203); and the limiting guide column (208) is slidably matched with the inner wall of the guide groove (209).

3. The pneumatic clamp for precision machining of a solenoid valve sleeve according to claim 1, characterized in that, The center line of the strip-shaped through hole (207) is located on a straight line, and the ends of the straight line pass through the laser ranging sensor (301) and the positioning groove (401) respectively.

4. The pneumatic clamp for precision machining of a solenoid valve sleeve according to claim 3, characterized in that, The inner wall of the positioning groove (401) is provided with a vertical plane (402); the laser ranging sensor (301) is aligned with the vertical plane (402); and the included angle between the center line of the strip-shaped through hole (207) and the vertical plane (402) is an acute angle.

5. The pneumatic clamp for precision machining of a solenoid valve sleeve according to claim 1, characterized in that, A plurality of groups of the laser ranging sensor (301) are electrically connected with a microprocessor, and the microprocessor is electrically connected with a plurality of groups of indicator lights (302).

6. The pneumatic clamp for precision machining of a solenoid valve sleeve according to claim 5, characterized in that, The bottom of the laser ranging sensor (301) is fixedly installed with a mounting seat (303); the back surface of the mounting seat (303) is fixedly installed with an indicator light (302), and the mounting seat (303) is fixedly installed on the clamp sliding plate (204).

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