Box cover clamp

Abstract

The utility model relates to the field of clamping, in particular to a box cover clamp which comprises a tool main plate, equal-height columns are fixed to the four corners of the bottom of the tool main plate, a first pressing cylinder and a second pressing cylinder are fixed to the tool main plate, a first pressing plate is detachably connected to the first pressing cylinder, and a second pressing plate is detachably connected to the second pressing cylinder. A first positioning pin, a second positioning pin, a third positioning pin and a universal positioning pin are detachably arranged on the tool main plate. According to the box cover clamp, clamping of motor covers and power covers of multiple models can be achieved, and the problem that an existing box cover clamp is not high in universality is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of clamping, in particular to a box cover clamp. BACKGROUND

[0002] At present, when machining box covers such as motor covers and power covers, the workpieces need to be accurately positioned and tightly clamped to ensure machining accuracy and reduce machining errors. When machining similar products of different models, it is difficult to use the same set of clamps for positioning due to the differences in shape and size of the products, so it is usually necessary to provide corresponding special clamps for machining. Although this method can ensure machining accuracy, it also brings a series of problems.

[0003] Firstly, the cost of the clamp is significantly increased. Since different models of products require different clamps, the enterprise must purchase and maintain multiple sets of clamps, which not only increases the procurement and management cost of the clamps, but also increases the customization cost. Each set of clamp needs to be customized according to the specific shape and size of the product, which not only prolongs the design and manufacturing time, but also increases the workload in the production preparation stage.

[0004] Secondly, this method seriously affects the machining efficiency. When machining products of different models, the entire set of clamps needs to be replaced, which not only increases the replacement time, but also requires re-adjustment and calibration after each replacement of the clamp to ensure the positioning accuracy and stability of the clamp, which further prolongs the machining preparation time and reduces the production efficiency. For example, the existing technology discloses a hydraulic clamp for machining the end cover of a new energy automobile motor (publication number: CN215747774U; application date: 2021-07-01), which improves the positioning accuracy and stability of the clamp to a certain extent, but still has the above-mentioned problems. INVENTION CONTENTS

[0005] The utility model intends to provide a box cover clamp to solve the problem of low universality of the existing box cover clamp.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A box cover clamp, comprising a tooling main plate, the tooling main plate is fixed with an equal-height column at the bottom of each corner, the tooling main plate is fixed with a first pressing cylinder and a second pressing cylinder, the first pressing cylinder is detachably connected with a first pressing plate, the second pressing cylinder is detachably connected with a second pressing plate, and the tooling main plate is detachably provided with a first positioning pin, a second positioning pin, a third positioning pin and a universal positioning pin.

[0008] The principle and advantages of the present scheme are:

[0009] The scheme can clamp the motor cover and the power cover, wherein the first pressing cylinder and the first pressing plate are used for pressing the motor cover, and the first positioning pin and the second positioning pin are respectively used for positioning the motor cover of two models. The second pressing cylinder and the second pressing plate are used for pressing the power cover, and the third positioning pin is used for positioning the power cover, and the universal positioning pin is used as a universal positioning pin. In actual application, when the motor cover needs to be clamped, the first pressing cylinder and the first pressing plate are started, and the second pressing plate is rotated to a position not interfering with the workpiece (or directly removed), and the third positioning pin and the unused universal positioning pin are removed. Similarly, when the power cover needs to be clamped, the second pressing cylinder and the second pressing plate are started, the first pressing plate is rotated to a position not interfering with the workpiece, and the first positioning pin, the second positioning pin and the unused universal positioning pin are removed. In this way, the clamping of the motor cover and the clamping of the power cover can be realized on the same tool main plate, the versatility of the clamp is improved, the switching is convenient, the quick switching can be realized, and the clamping efficiency is high.

[0010] Preferably, as an improvement, the first pressing cylinder and the second pressing cylinder are arranged at the edge of the tool main plate, the number of the first pressing cylinder and the second pressing cylinder is two, the two first pressing cylinders are arranged oppositely, and the two second pressing cylinders are also arranged oppositely. A first fixed leveling block is arranged below the first pressing cylinder, a second fixed leveling block is arranged below one of the second pressing cylinders, and a movable leveling block is arranged below the other second pressing cylinder.

[0011] Beneficial effects: 1. The first pressing cylinder and the second pressing cylinder are arranged at the edge of the tool main plate, which is convenient for clamping the edge of the workpiece, reduces the space occupied by the tool main plate, leaves enough space in the middle of the tool main plate, and is convenient for placing workpieces of various models. 2. Two opposite first pressing cylinders and second pressing cylinders are used to press the opposite sides of the workpiece, which can ensure the stability of the workpiece pressing while reducing the number of pressing cylinders as much as possible. 3. The first fixed leveling block can cooperate with the first pressing cylinder to press the workpiece, and the second fixed leveling block is used to cooperate with the second pressing cylinder to press the workpiece. The arrangement of the leveling blocks not only can support the workpiece, but also can realize the leveling of the workpiece, and improve the clamping stability of the workpiece. 4. The movable leveling block below the second pressing cylinder can be adjusted according to the structure of the product, which further improves the versatility of the clamp.

[0012] Preferably, as an improvement, the movable leveling block below the second pressing cylinder is two, and the two movable leveling blocks are arranged side by side.

[0013] Beneficial effects: Two movable leveling blocks are arranged below the second pressing cylinder, and the two movable leveling blocks share one second pressing cylinder, which saves cost. The second pressing plate is switched between the two movable leveling blocks by rotating, so as to adapt to different power covers, and the switching is convenient.

[0014] Preferably, as an improvement, the tool main plate is provided with a plurality of universal movable contour blocks.

[0015] Beneficial effects: the universal movable contour block can be used as a universal support for the motor cover and the power cover, and can adjust its position according to the structure of the product, facilitating targeted support for the product, without the need for additional more contour blocks, thereby saving costs.

[0016] Preferably, as an improvement, the movable contour block and the universal movable contour block are both air-tight contour blocks, and the movable contour block and the universal movable contour block are both detachably installed on the tool main plate.

[0017] Beneficial effects: the use of air-tight contour blocks can detect whether the product is placed in place through air-tight detection, thereby improving the precision of product clamping. The movable contour block and the universal movable contour block are both detachably installed on the tool main plate, facilitating replacement and maintenance.

[0018] Preferably, as an improvement, the first positioning pin, the second positioning pin and the universal positioning pin are all detachably installed on the tool main plate.

[0019] Beneficial effects: the use of the above scheme facilitates replacement and maintenance.

[0020] Preferably, as an improvement, the tool main plate is provided with a center positioning column.

[0021] Beneficial effects: the center positioning column is used for centering the workpiece, on the one hand, cooperating with the pressing cylinder and the positioning pin to position the workpiece, thereby further improving the stability of workpiece clamping and the positioning precision; on the other hand, after positioning the workpiece, the position of the workpiece is determined, thereby facilitating clamping of the clamping cylinder, improving the operation convenience and efficiency.

[0022] Preferably, as an improvement, the center positioning column is detachably installed on the tool main plate.

[0023] Beneficial effects: the use of the above scheme facilitates replacement or maintenance of the center positioning column. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of an embodiment of the present application. DETAILED DESCRIPTION

[0025] The above will be further described in detail through specific embodiments:

[0026] The figure marks in the drawings of the specification include: tooling main board 1, contour column 2, first clamping cylinder 3, second clamping cylinder 4, first pressure plate 5, second pressure plate 6, first fixed contour block 7, second fixed contour block 8, movable contour block 9, universal movable contour block 10, first positioning pin 11, second positioning pin 12, third positioning pin 13, universal positioning pin 14, and center positioning column 15.

[0027] Example:

[0028] like Figure 1 As shown, a box cover fixture includes a tooling mainboard 1, with equal-height columns 2 fixed to the four corners of the bottom of the tooling mainboard 1 via screws. Two first pressing cylinders 3 and two second pressing cylinders 4 are screwed to the tooling mainboard 1. A first pressing plate 5 is detachably connected to the first pressing cylinder 3 via screws, while a second pressing plate 6 is detachably connected to the second pressing cylinder 4 via screws. Both the first pressing cylinder 3 and the second pressing cylinder 4 are mounted on the edge of the tooling mainboard 1, with the two first pressing cylinders 3 positioned opposite each other, and the two second pressing cylinders 4 also positioned opposite each other.

[0029] A first fixed contour block 7 is screwed to the bottom of each of the two first clamping cylinders 3, a second fixed contour block 8 is screwed to the bottom of a second clamping cylinder 4, and two movable contour blocks 9 are screwed to the bottom of another second clamping cylinder 4. The two movable contour blocks 9 are arranged side by side, and a number of universal movable contour blocks 10 are also fixed to the tooling main board 1 by screws. The movable contour blocks 9 and the universal movable contour blocks 10 are both airtight contour blocks. Contour block mounting holes are provided on the tooling main board 1. The shafts of the movable contour blocks 9 and the universal movable contour blocks 10 are rotatably inserted into the contour block mounting holes. After unscrewing the screws, the movable contour blocks 9 and the universal movable contour blocks 10 can be rotated to adjust their positions to adapt to the support of different workpieces.

[0030] A center positioning column 15 is detachably installed in the center of the tooling mainboard 1. Specifically, the center positioning column 15 has a T-shaped cross-section. A mounting hole is provided on the tooling mainboard 1. The small diameter end of the center positioning column 15 is inserted into the mounting hole and then the large diameter end of the center positioning column 15 is locked to the tooling mainboard 1 with a screw. This installation method can effectively improve the installation strength and stability of the center positioning column 15.

[0031] The tooling mainboard 1 is also detachably mounted with a first locating pin 11, a second locating pin 12, a third locating pin 13, and a universal locating pin 14. In this embodiment, there are two first locating pins 11, one second locating pin 12, two third locating pins 13 (only one is shown in the figure), and two universal locating pins 14. Locating pin mounting holes are formed on the tooling mainboard 1, and the first locating pin 11, second locating pin 12, third locating pin 13, and universal locating pin 14 are interference-fitted into the locating pin mounting holes.

[0032] The principle of the box cover clamp is:

[0033] The clamp of the embodiment can be suitable for various models of motor covers and power covers. When the motor cover is clamped, the second pressing plate 6 is rotated to a position not interfering with the workpiece, or is directly removed; and the third positioning pin 13 and the unused universal positioning pin 14 are removed. The first pressing plate 5 is driven by the two first pressing cylinders 3 to press the motor cover, and at the same time, the first positioning pin 11 and the remaining universal positioning pin 14 are inserted into the motor cover to position the motor cover. The first positioning pin 11 is removed, and the second positioning pin 12 and the corresponding universal positioning pin 14 are used, so that another model of motor cover can be clamped.

[0034] Similarly, when the power cover is clamped, the first pressing plate 5 is rotated to a position not interfering with the workpiece, or is directly removed; and the first positioning pin 11, the second positioning pin 12 and the unused universal positioning pin 14 are removed. The second pressing plate 6 is driven by the two second pressing cylinders 4 to press the power cover, and at the same time, the third positioning pin 13 and the remaining universal positioning pin 14 are inserted into the power cover to position the power cover.

[0035] When the workpiece is placed on the tool main plate 1, the center positioning column 15 can be used for centering, and if not needed, the center positioning column 15 is removed. When the motor cover is clamped, the first fixed equal-height block 7 and the corresponding universal equal-height block support the motor cover to cooperate with the first pressing cylinder 3 to clamp the motor cover. When the power cover is clamped, the second fixed equal-height block 8, the movable equal-height block 9 and the universal movable equal-height block 10 support the workpiece to cooperate with the second pressing cylinder 4 to clamp the power cover. By driving the second pressing plate 6 on one of the second pressing cylinders 4 to switch between the two movable equal-height blocks 9, two different models of power covers can be clamped; according to the specific workpiece, the screw of the universal movable equal-height block 10 can be unscrewed, and it is rotated to the appropriate position, so that it is suitable for supporting different models of workpieces.

[0036] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, some modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A box cover clamp characterized by: The utility model provides a kind of tooling mainboard, and the equal-height column is fixed in the bottom of tooling mainboard four corners, first pressing cylinder and second pressing cylinder are fixed on tooling mainboard, first pressing plate is detachably connected on first pressing cylinder, second pressing plate is detachably connected on second pressing cylinder, first positioning pin, second positioning pin, third positioning pin and general positioning pin are detachably set on tooling mainboard.

2. A box cover clamp according to claim 1, wherein: First pressing cylinder and second pressing cylinder are arranged at the edge of tooling mainboard, the number of first pressing cylinder and second pressing cylinder is two, two first pressing cylinders are oppositely arranged, two second pressing cylinders are also oppositely arranged, first fixed equal-height block is arranged below first pressing cylinder, second fixed equal-height block is arranged below one second pressing cylinder, movable equal-height block is arranged below another second pressing cylinder.

3. A box cover clamp according to claim 2, wherein: The movable equal-height block below second pressing cylinder is two, and the two movable equal-height blocks are arranged side by side.

4. A box cover clamp according to claim 3, wherein: A plurality of general movable equal-height blocks are arranged on tooling mainboard.

5. A box cover clamp according to claim 4, wherein: Movable equal-height block and general movable equal-height block are airtight equal-height blocks, and movable equal-height block and general movable equal-height block are detachably mounted on tooling mainboard.

6. A box cover clamp according to claim 5, wherein: First positioning pin, second positioning pin and general positioning pin are detachably mounted on tooling mainboard.

7. A box cover clamp according to claim 6, wherein: A center positioning column is arranged at the center of tooling mainboard.

8. A box cover clamp according to claim 7, wherein: The center positioning column is detachably mounted on tooling mainboard.

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