Machining jig for cover plate

Abstract

The utility model discloses a machining jig for a cover plate, which relates to the technical field of machining jigs and comprises a base plate, two groups of pressing components extending to the front and rear surfaces of the base plate are assembled above the base plate, and double-head motors for driving the pressing components to move transversely are assembled on the front and rear surfaces of the base plate. The two ends of the double-end motor are connected with lead screws through couplings. The downward pressing assembly comprises a U-shaped arm which is located above the base plate and extends to the front surface and the rear surface of the base plate, and the front side and the rear side of the U-shaped arm are movably sleeved with strip frames. According to the cover plate clamping device, the pressing plate is driven to be lowered through the force of the downward pressing assembly which is close to the middle, the cover plate is clamped and fixed in cooperation with the movable plate, time spent on taking and placing of the cover plate is short, meanwhile, the movable plate can be adjusted upwards or downwards, machining of the cover plates with different thickness sizes is met, and the machining efficiency is improved. And meanwhile, a space can be reserved between the cover plate and the movable plate through the heightening strip, so that the drilling and chambering procedures of the cover plate are met, and the jig is wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing fixture field, concretely is a machining jig of cover plate. BACKGROUND

[0002] A large number of fixtures are involved in machining operation, which are used for clamping and fixing products to meet the needs of specific surface machining operation of products. The design of fixture is of great significance to the machining stability, forming precision and machining efficiency of products.

[0003] Through the search of Chinese patent announcement No. CN214134982U discloses a machining jig of cover plate, which can realize the stable locking and mounting of the cover plate, and the clamping station has different machining avoidance design. By changing the type on the clamping station, the three-face machining requirements of the cover plate can be met, and the machining quality is improved. The overall design is simple and ingenious, convenient and efficient, and has cost advantage.

[0004] The disassembly of the plate material adopts a press-fit pile body fixed on the clamping station by bolts, which needs to be loosened and removed manually with tools, resulting in the consumption of a certain time for disassembly of the plate material. Moreover, as the number of uses increases, the bolts may break, further reducing the replacement efficiency of the plate material. Therefore, a machining jig of cover plate is proposed. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a machining jig of cover plate to solve the technical problem of low replacement efficiency of the processed plate material in the above background, which affects the overall machining efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a machining jig of cover plate, comprising a base plate, two groups of lower pressing assemblies extending to the front and rear surfaces of the base plate are assembled above the base plate, a double-head motor driving the lower pressing assemblies to move transversely is assembled on the front and rear surfaces of the base plate, and lead screws are connected to the two ends of the double-head motor through a shaft coupling;

[0007] The lower pressing assembly comprises a U-shaped arm located above the base plate and extending to the front and rear surfaces of the base plate, a strip frame movably sleeved on the front and rear sides of the U-shaped arm, a driven sleeve fixed to the outer wall of the lead screw is fixed to the inner wall of the strip frame close to the end position, a base shaft extending into the front and rear surfaces of the base plate is fixed to the inner wall of the U-shaped arm, a gradually lower groove for the sliding of the base shaft is formed in the front and rear surfaces of the base plate, and a pressing plate for pressing the cover plate is fixed to the lower surface of the U-shaped arm above the base plate.

[0008] As a preferred technical scheme, the front and rear surfaces of the base plate are both provided with a lead screw groove, the double-head motor is assembled in the middle position of the lead screw groove, and the lead screws at both ends are rotatably arranged on the side walls of the lead screw groove.

[0009] As a preferred technical solution, a rectangular groove is reserved on the top of the substrate, a plurality of groups of positioning grooves are arranged on the lower inner wall of the rectangular groove, a movable plate supporting the cover plate is arranged in the rectangular groove, and two groups of heightening plate strips in contact with the bottom of the movable plate are arranged in the plurality of groups of positioning grooves.

[0010] As a preferred technical solution, three groups of accommodation grooves are arranged on the top of the movable plate near the left and right edges, and a heightening strip is arranged on the top of the substrate near the left and right edges.

[0011] As a preferred technical solution, the depths of the plurality of groups of positioning grooves gradually decrease from the edges to the middle, and the plurality of groups of positioning grooves are symmetrically arranged about the longitudinal middle axis of the substrate.

[0012] As a preferred technical solution, four groups of anti-skid pads are arranged on the bottom of the substrate near the corners.

[0013] As a preferred technical solution, the driven sleeve is sleeved on the outer wall of the lead screw in a threaded manner, and the upper and lower surfaces of the lead screw are attached to the upper and lower inner walls of the lead screw groove.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model discloses a lower pressing assembly, which drives the pressing plate to lower by the force of moving towards the middle, and the movable plate completes the clamping and fixing effect of the cover plate, so that the time spent for taking and placing the cover plate is short, the movable plate can be adjusted upwards or downwards, the cover plate processing of different thicknesses is satisfied, the space between the cover plate and the movable plate is provided by the heightening strip, the drilling and reaming process of the cover plate is satisfied, and the application range of the jig is relatively wide. DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

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

[0018] Figure 3 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 4 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic diagram of the utility model;

[0021] In the drawing: 100, substrate; 101, lead screw groove; 102, storage groove; 103, gradually low groove; 200, lower pressing assembly;

[0022] 110. Dual-head motor; 120. Lead screw; 130. Movable plate; 131. Clearance groove; 140. Rectangular groove; 150. Positioning groove; 160. Raising strip; 170. Heightening strip;

[0023] 210, U-arm; 220, frame; 230, pressure plate; 240, base shaft; 250, driven sleeve. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] A machining fixture for a cover plate, such as Figures 1 to 5 As shown, the substrate includes a substrate 100. Two sets of pressing components 200 extending to the front and rear surfaces of the substrate 100 are mounted on the top of the substrate 100. A dual-head motor 110 for driving the pressing components 200 to move laterally is mounted on the front and rear surfaces of the substrate 100. The two ends of the dual-head motor 110 are connected to lead screws 120 by couplings.

[0027] The pressing assembly 200 includes a U-arm 210 located above the substrate 100 and extending to the front and rear surfaces of the substrate 100. A frame 220 is movably sleeved on the front and rear sides of the U-arm 210. A driven sleeve 250 is fixed near the end of the inner wall of the frame 220 and sleeved on the outer wall of the lead screw 120. A base shaft 240 extending into the front and rear surfaces of the substrate 100 is fixed on the inner wall of the U-arm 210. A gradually decreasing groove 103 for sliding of the base shaft 240 is opened on the front and rear surfaces of the substrate 100. A pressing cover plate 230 is fixed on the lower surface of the U-arm 210 directly above the substrate 100.

[0028] A rectangular groove 140 is reserved at the top of the substrate 100. Multiple positioning grooves 150 are opened on the lower inner wall of the rectangular groove 140. A movable plate 130 supporting the cover plate is sleeved inside the rectangular groove 140. Two sets of padding strips 160 that contact the bottom of the movable plate 130 are installed in the multiple positioning grooves 150.

[0029] Three sets of clearance grooves 131 are provided on the top of the movable plate 130 near the left and right edges. The top of the substrate 100 is provided with a heightening strip 170 at the left and right edges. A storage groove 102 for storing the heightening strip 170 is provided on the top of the substrate 100.

[0030] The depth of the plurality of positioning grooves 150 gradually decreases from the edge to the middle, and the plurality of positioning grooves 150 are symmetrically arranged about the longitudinal middle axis of the base plate 100.

[0031] The cover plate to be processed can be placed on the top of the movable plate 130, and then the double-head motor 110 can be controlled to work, and the output end drives the screw rod 120 to rotate, drives the U-shaped arm 210 to move towards the middle along the front and back surfaces of the base plate 100 through the driven sleeve 250 and the strip frame 220, at this time the base shaft 240 slides downward along the gradually low groove 103, so that the U-shaped arm 210 moves transversely and gradually lowers along the strip frame 220, so that the pressing plate 230 lowers and is attached to the upper surface of the cover plate, thereby fixing the cover plate on the top of the movable plate 130, and then the cover plate can be processed;

[0032] For different thicknesses of the cover plate to be processed, the movable plate 130 can be taken out of the outside of the rectangular groove 140 first, and the heightening plate strip 160 is taken out and placed in the corresponding depth positioning groove 150, it is worth noting that the two groups of heightening plate strips 160 are placed in the two groups of positioning grooves 150 stacked, and when the movable plate 130 is placed inside the rectangular groove 140 again, it can be in a horizontal state, so that the cover plate of different thicknesses can be processed;

[0033] When drilling and reaming the cover plate, the heightening strip 170 in the storage groove 102 can be taken out and placed in the accommodation groove 131 on the top of the movable plate 130, at this time the top of the heightening strip 170 is higher than the movable plate 130, so that the cover plate to be processed is in contact with the top of the heightening strip 170, and a certain gap is formed between the cover plate and the movable plate 130 for drilling and reaming work, and a plurality of accommodation grooves 131 can satisfy a plurality of sizes of the cover plate, so that the heightening strip 170 is located at the bottom edge position of the cover plate and does not interfere with the drilling and reaming process of the cover plate.

[0034] Please refer to Figure 1 , the front and back surfaces of the base plate 100 are provided with screw rod grooves 101, and the double-head motor 110 is assembled in the middle position of the screw rod groove 101, and the screw rods 120 at both ends are rotatably arranged on the side walls of the screw rod grooves 101.

[0035] The double-head motor 110 and the screw rod 120 are provided with a storage space, and can avoid external bumping during storage, which can protect the double-head motor 110 and the screw rod 120 to a certain extent.

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , four anti-skid pads are assembled at the bottom of the base plate 100, and the four anti-skid pads are arranged at the positions close to the corners at the bottom of the base plate 100.

[0037] The friction coefficient between the bottom of the substrate 100 and the bearing table is increased, so that the cover plate is more stable when being processed, and the processing quality of the cover plate is improved.

[0038] Please refer to the drawings, the driven sleeve 250 is sleeved on the outer wall of the lead screw 120 in a threaded manner, and the upper and lower surfaces of the lead screw 120 are attached to the upper and lower inner walls of the lead screw groove 101.

[0039] When the lead screw 120 rotates, the driven sleeve 250 is stably moved inside the lead screw groove 101, and the clamping and positioning effect of the cover plate is completed in cooperation with the pressing assembly 200.

[0040] In use, the cover plate to be processed can be placed on the top of the movable plate 130, and then the double-head motor 110 can be controlled to work, and the output end drives the lead screw 120 to rotate, and the U-shaped arm 210 is driven by the driven sleeve 250 and the strip frame 220 to move towards the middle along the front and rear surfaces of the substrate 100, at this time the base shaft 240 slides downward along the gradually low groove 103, so that the U-shaped arm 210 moves transversely and gradually lowers along the strip frame 220, so that the pressing plate 230 lowers and is attached to the upper surface of the cover plate, so that the cover plate is fixed on the top of the movable plate 130, and then the cover plate can be processed;

[0041] For the cover plate to be processed, the movable plate 130 can be taken out outside the rectangular groove 140, and the heightening plate strip 160 can be taken out and placed in the corresponding depth positioning groove 150, it is worth noting that the two groups of heightening plate strips 160 are placed in the two groups of positioning grooves 150 stacked, and when the movable plate 130 is placed inside the rectangular groove 140, it can be in a horizontal state, so that the cover plate of different thicknesses can be processed;

[0042] When drilling and reaming the cover plate, the heightening strip 170 in the storage groove 102 can be taken out and placed in the accommodation groove 131 on the top of the movable plate 130, at this time the top of the heightening strip 170 is higher than the movable plate 130, so that the cover plate to be processed is in contact with the top of the heightening strip 170, and a certain gap is formed between the cover plate and the movable plate 130 for drilling and reaming work, and the plurality of accommodation grooves 131 can satisfy the cover plate of multiple sizes, so that the heightening strip 170 is located at the bottom edge position of the cover plate, and does not interfere with the drilling and reaming process of the cover plate.

[0043] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A machining jig for a cover plate comprising a base plate (100), characterized by: The upper of the substrate (100) is equipped with two groups of pressing assembly (200) extending to the front and back surfaces of the substrate (100), the front and back surfaces of the substrate (100) are equipped with double head motor (110) driving the transverse movement of the pressing assembly (200), the two ends of the double head motor (110) are connected with lead screw (120) through shaft coupling; The pressing assembly (200) includes U arm (210) above the substrate (100) and extending to the front and back surfaces of the substrate (100), the front and back sides of the U arm (210) are movably sleeved with strip frame (220), the inner wall of the strip frame (220) is fixed with driven sleeve (250) sleeved on the outer wall of the lead screw (120) near the end position, the inner wall of the U arm (210) is fixed with base shaft (240) extending to the front and back surfaces of the substrate (100), the front and back surfaces of the substrate (100) are provided with gradually low groove (103) for the sliding of the base shaft (240), the lower surface of the U arm (210) is fixed with pressing cover plate (230) above the front of the substrate (100).

2. The machining jig for a cover plate according to claim 1, characterized by: The front and back surfaces of the substrate (100) are provided with lead screw groove (101), the double head motor (110) is equipped with the center position in the lead screw groove (101), and the two ends of the lead screw (120) are rotatably arranged on the side wall of the lead screw groove (101).

3. The machining jig for a cover plate according to claim 1, characterized by: The top of the substrate (100) is reserved with rectangular groove (140), the lower inner wall of the rectangular groove (140) is provided with a plurality of positioning grooves (150), the rectangular groove (140) is sleeved with movable plate (130) supporting cover plate, and a plurality of positioning grooves (150) are equipped with two groups of heightening plate strips (160) in contact with the bottom of the movable plate (130).

4. The machining jig for a cover plate according to claim 3, characterized by: The top of the movable plate (130) is provided with three groups of accommodation grooves (131) near the left and right edges, the top of the substrate (100) is provided with heightening strips (170) at the left and right edge positions, and the top of the substrate (100) is provided with storage groove (102) storing the heightening strips (170).

5. The machining jig for a cover plate according to claim 3, characterized by: The depth of a plurality of positioning grooves (150) gradually decreases from the edge to the middle, and a plurality of positioning grooves (150) are symmetrically arranged about the longitudinal axis of the substrate (100).

6. The machining jig for a cover plate according to claim 1, characterized by: The bottom of the substrate (100) is equipped with four groups of anti-skid pads, which are arranged at the positions near the corners of the bottom of the substrate (100).

7. The machining jig for a cover plate according to claim 1, characterized by: The driven sleeve (250) is sleeved on the outer wall of the lead screw (120) in the form of thread, and the upper and lower surfaces of the lead screw (120) are attached to the upper and lower inner walls of the lead screw groove (101).

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