Fixing tool for rocker arm shaft punching

Abstract

The utility model belongs to the technical field of rocker arm shaft production, and particularly relates to a rocker arm shaft punching fixing tool which comprises a bottom plate, at least two parallel brackets are fixedly arranged on the bottom plate, a plurality of V-shaped grooves are formed in the two brackets, and the positions of the V-shaped grooves in the two brackets correspond to each other in a pairwise mode. A fastening piece is rotationally arranged between every two adjacent V-shaped grooves in the same bracket, and the two ends of each fastening piece are located above the two corresponding V-shaped grooves respectively; the fastener comprises a bolt and a pressing plate, the upper portion of the bolt is rotationally connected with the pressing plate, the middle lower portion of the bolt is in threaded fit with the bracket, and the width of the pressing plate is smaller than the distance between every two adjacent V-shaped grooves. According to the fixing tool for punching the rocker arm shaft, the rocker arm shaft is supported by arranging the bracket and the supporting frame, and the rocker arm shaft is clamped by arranging the fastening piece, so that the rocker arm shaft can be stably fixed on the fixing tool, the rocker arm shafts can be fixed in batches, and the machining efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of rocker arm shaft production, and in particular relates to a fixing tool for drilling a rocker arm shaft. Background Art

[0002] Drilling is required during the production of rocker shafts. Most of the existing rocker shaft drilling equipment adopts sequential processing, single-axis single drilling, numerous processes, and multiple clamping are required, resulting in low production efficiency. During the re-clamping process, parts are prone to shifting, resulting in difficulty in ensuring processing accuracy. Therefore, we need to propose a drilling equipment for rocker shaft production.

[0003] The utility model patent with publication number CN216758215U proposes a drilling device for rocker arm shaft production, including a base plate, four groups of legs are symmetrically installed at the bottom of the base plate, and the rocker arm shaft to be punched is placed on two groups of supporting plates, and one end of the rocker arm shaft is positioned by a positioning plate so that one end of the rocker arm shaft is against the positioning plate to avoid drilling deviation caused by the rocker arm shaft being not placed in place, and the two groups of clamping plates are driven to move relative to each other synchronously through the extension and contraction of the piston rods of the four groups of second electric hydraulic rods in the fixing assembly, so that the rocker arm shaft is clamped into the arc grooves of the two groups of clamping plates, and the rocker arm shaft is fixed by forming a fixed cavity through the two groups of arc grooves, and the clamping plate is auxiliary limited and supported under the cooperation of the slide rail and the slider, which can not only prevent the sliding direction of the clamping plate from deviating, but also provide auxiliary support to the clamping plate during the drilling operation of the rocker arm shaft, increase the stability of the clamping plate, and form a positioning hole through the matching positioning grooves on the two groups of clamping plates, so that the drilling device can perform drilling operation on the rocker arm shaft through the positioning hole.

[0004] However, the drilling equipment in the patent can only fix and process one rocker shaft at a time, and it is necessary to wait for the drilling of the previous rocker shaft to be completed before fixing and drilling other unprocessed rocker shafts. During the process, the rocker shafts need to be frequently picked up, fixed and disassembled, which wastes time and makes the processing efficiency low. Utility Model Content

[0005] The utility model aims to provide a fixing tool for drilling a rocker arm shaft to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0007] A fixing tool for drilling a rocker arm shaft, comprising a bottom plate, on which at least two brackets parallel to each other are fixedly arranged, a plurality of V-shaped grooves are provided on the two brackets, the positions of the V-shaped grooves in the two brackets correspond to each other, a fastener is rotatably arranged between two adjacent V-shaped grooves on the same bracket, and the two ends of the fastener are respectively located above the two V-shaped grooves;

[0008] The fastener comprises a bolt and a pressing plate, the upper portion of the bolt is rotatably connected to the pressing plate, the middle and lower portions of the bolt are threadedly matched with the bracket, and the width of the pressing plate is smaller than the distance between two adjacent V-shaped grooves.

[0009] As an improvement, a support frame is fixedly provided at one end of the base plate, and a support step is provided on a side of the support frame close to the bracket, and the height of the support step corresponds to the height of the V-shaped groove.

[0010] As a further improvement, the V-shaped groove has a variety of sizes, and the sizes of the two V-shaped grooves located in the same straight line on the two brackets are the same.

[0011] As a further improvement, the height of the supporting step matches the height of the corresponding V-shaped groove.

[0012] As a further improvement, a base frame is fixedly provided on the bottom surface of the base plate, two sliders are fixedly connected to the bottom of each bracket, the bottom ends of the two sliders are slidably connected to the base frame, a slideway matching the slider is provided on the base frame, a slide groove is opened on the base plate, and the upper part of the slider is slidably matched with the slide groove.

[0013] As a further improvement, a connecting plate is fixedly connected between the middle parts of the two sliding blocks, the connecting plate is located below the bottom plate, the middle part of the connecting plate is connected to a driving member, and the driving member is fixedly mounted on the base frame.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The utility model provides a fixing tool for punching a rocker shaft, which supports the rocker shaft by arranging a bracket and a support frame, and clamps the rocker shaft by arranging a fastener, so that the rocker shaft can be stably fixed on the fixing tool. A plurality of V-shaped grooves are arranged in the bracket, and the rocker shafts can be placed in batches in each V-shaped groove, so that the rocker shafts can be fixed in batches, and there is no need to frequently take, place, fix and disassemble the rocker shafts to be processed, which can save time and make the processing efficiency higher.

[0016] 2. The use of two rows of brackets in combination with support frames can make the rocker shaft more firmly fixed and enhance the stability of the rocker shaft during the drilling process. This is especially suitable for cases where the rocker shaft is longer. The V-grooves on the brackets are set to different sizes, which can be used to fix rocker shafts of different diameters, making it more practical.

[0017] 3. The connecting plate is driven by the driving member to move along the length direction of the bottom plate, and the connecting plate drives the two sliders to move, and then drives the bracket to move until the bracket is moved to a suitable position, so that the rocker shaft can be fixed, so that the fixing tool is more suitable for rocker shafts of different lengths and the positions to be punched on the rocker shaft, thereby improving the practicality of the fixing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of embodiment 1;

[0019] Figure 2 is a top view of the fixed rocker arm shaft of the first embodiment;

[0020] Figure 3 is a top view of the first embodiment in which the rocker arm shaft is not fixed;

[0021] Figure 4 It is a right side view of the first embodiment;

[0022] Figure 5 is a structural diagram of Embodiment 2;

[0023] Figure 6 is a cross-sectional view of the second embodiment;

[0024] Among them: 1-base plate, 2-bracket, 3-V-groove, 4-support frame, 5-support step, 6-bolt, 7-pressure plate, 8-base frame, 9-slider, 10-slideway, 11-slideway, 12-connecting plate, 13-driving member. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Embodiment 1

[0028] like Figure 1-4 As shown, a fixing tool for punching a rocker shaft comprises a base plate 1, a bracket 2 is fixedly provided on the base plate 1, a plurality of V-shaped grooves 3 are opened on the bracket 2, the rocker shaft is placed in the V-shaped groove 3, a fastener is rotatably provided between two adjacent V-shaped grooves 3 on the same bracket 2, and two ends of the fastener are respectively located above the two V-shaped grooves 3. When the rocker shaft needs to be placed, the two ends of the fastener are moved away from above the V-shaped groove 3, and then the rocker shaft is placed in the V-shaped groove 3, and then the two ends of the fastener are respectively pressed against the two rocker shafts to fix the rocker shaft in the V-shaped groove 3.

[0029] A support frame 4 is fixedly provided at one end of the base plate 1, and a support step 5 is provided on the side of the support frame 4 close to the bracket 2. The height of the support step 5 corresponds to the height of the V-shaped groove 3. After the rocker arm shaft is placed in the V-shaped groove 3, the end of the rocker arm shaft close to the support frame 4 is placed on the support step 5 to increase the support point, thereby enhancing the stability of the rocker arm shaft when drilling.

[0030] The fastener includes a bolt 6 and a pressure plate 7. The upper part of the bolt 6 is rotatably connected to the pressure plate 7. The middle and lower parts of the bolt 6 are threadedly matched with the bracket 2. The pressure plate 7 is driven up and down by screwing the bolt 6, so that the pressure plate 7 presses the rocker shaft. The width of the pressure plate 7 is smaller than the distance between two adjacent V-shaped grooves 3. When the pressure plate 7 is rotated to be parallel to the rocker shaft, the rocker shaft can be freely taken in and out of the V-shaped groove 3. The rocker shaft can be taken in and out without disassembling the pressure plate 7, which saves operation time and improves processing efficiency.

[0031] Specifically, at least two brackets 2 are provided on the bottom plate 1, and a plurality of V-shaped grooves are provided on the two brackets 2. The positions of the V-shaped grooves 3 in the two brackets 2 correspond to each other, so that after the rocker shaft is placed in the V-shaped grooves 3, the shapes and heights of the two V-shaped grooves 3 located on the same axis are completely consistent, so that the rocker shaft can remain horizontal. In this embodiment, the use of two rows of brackets 2 and the support frame 4 can enhance the stability of the rocker shaft during the drilling process, which is particularly suitable for the case where the rocker shaft is long.

[0032] Specifically, the sizes of the V-shaped groove 3 are various, and the sizes of the two V-shaped grooves 3 on the same straight line of the two brackets 2 are the same, so as to adapt to the use of rocker shafts of different diameters, and at the same time, the top surfaces of the rocker shafts of different diameters are located at the same horizontal plane, which is convenient for the clamping of fasteners and the accuracy of the punching equipment when punching. Since one end of the rocker shaft is placed on the support step 5, the height of the support step 5 matches the height of the corresponding V-shaped groove 3, and the height of the support step 5 is adaptively adjusted due to the height of the V-shaped groove 3, so that the rocker shaft can remain horizontal and the accuracy of the punching is guaranteed.

[0033] The working principle of this embodiment is: the rocker shaft to be punched is placed in the corresponding V-groove 3 according to its diameter, the top surface of each rocker shaft is in the same horizontal plane, and then the pressing plate 7 is rotated so that the two ends of the pressing plate 7 are respectively located above the two V-grooves 3, and the bolts 6 are tightened so that the bottom surface of the pressing plate 7 presses each rocker shaft, and then the rocker shaft can be punched. After the punching is completed, the bolts 6 are loosened, and then the pressing plate 7 is rotated between two adjacent V-grooves 3 to facilitate the removal of the rocker shaft from the V-groove 3. It is usually necessary to punch multiple holes on the rocker shaft. During the punching process, the position of the punching device can be moved or multiple punching devices can be used to punch holes at the same time. There is no need to disassemble and assemble the rocker shaft multiple times. The fixing process is simple, which reduces the work intensity of the operator, and multiple V-grooves 3 are set on the bracket 2, so that the rocker shafts can be placed in the V-grooves 3 in batches, and the rocker shafts can be punched in batches. There is no need to frequently pick up, fix and disassemble the rocker shafts to be processed, which can save time and make the processing efficiency higher.

[0034] Embodiment 2

[0035] like Figure 5 , Figure 6 As shown, the structure of this embodiment is basically the same as that of the first embodiment, except that: a base frame 8 is fixedly provided on the bottom surface of the bottom plate 1, and a space is left between the bottom plate 1 and the base frame 8. Two sliders 9 are fixedly connected to the bottom of each bracket 2, and the bottom ends of the two sliders 9 are slidably connected to the base frame 8. A slideway 10 matching with the slider 9 is provided on the base frame 8, and a slide groove 11 is provided on the bottom plate 1. The upper part of the slider 9 is slidably matched with the slide groove 11, and the slideway 10 and the slide groove 11 are both arranged along the length direction of the base frame 8. The slider 9 slides in the slideway 10 to drive the bracket 2 to slide on the bottom plate 1, thereby adjusting the position of the bracket 2 on the bottom plate 1, and then adapting to the use of rocker shafts of different lengths, especially suitable for the situation where there is a requirement for the drilling position on the rocker shaft, to avoid the clamping position of the fastener being exactly located at the position where the hole needs to be drilled, so as to make the fixed tooling more adaptable.

[0036] Specifically, a connecting plate 12 is fixedly connected between the middle parts of the two sliders 9, and the connecting plate 12 is located below the bottom plate 1. A driving member 13 is connected to the middle part of the connecting plate 12, and the middle part of the connecting plate 12 is connected to the output end of the driving member 13. The driving member 13 is fixedly installed on the bottom frame 8. In this embodiment, the driving member 13 can be an electric push rod, a cylinder and other components, which are not limited here. The connecting plate 12 is driven by the driving member 13 to move along the length direction of the bottom plate 1, and the connecting plate 12 drives the two sliders 9 to move, and then drives the bracket 2 to move, until the bracket 2 is moved to a suitable position, and the rocker arm shaft can be fixed.

[0037] In this embodiment, one end of the rocker arm shaft is placed on the supporting step 5, and the position of the bracket 2 is determined according to the length of the rocker arm shaft and the punching position, thereby effectively improving the practicality of the fixing tool.

[0038] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A fixing tool for drilling a rocker shaft, comprising a bottom plate, characterized in that: At least two brackets parallel to each other are fixedly provided on the bottom plate, and a plurality of V-shaped grooves are provided on the two brackets, and the positions of the V-shaped grooves in the two brackets correspond to each other. A fastener is rotatably provided between two adjacent V-shaped grooves on the same bracket, and the two ends of the fastener are respectively located above the two V-shaped grooves; The fastener comprises a bolt and a pressing plate, the upper portion of the bolt is rotatably connected to the pressing plate, the middle and lower portions of the bolt are threadedly matched with the bracket, and the width of the pressing plate is smaller than the distance between two adjacent V-shaped grooves.

2. The fixing device for drilling a rocker arm shaft according to claim 1, characterized in that: A support frame is fixedly provided at one end of the bottom plate, and a support step is provided on a side of the support frame close to the bracket, and the height of the support step corresponds to the height of the V-shaped groove.

3. The fixing device for drilling a rocker arm shaft according to claim 2, characterized in that: The V-shaped grooves have various sizes, and the two V-shaped grooves on the same straight line on the two brackets have the same size.

4. The fixing device for drilling a rocker arm shaft according to claim 3, characterized in that: The height of the supporting step matches the height of the corresponding V-shaped groove.

5. The fixing device for drilling a rocker arm shaft according to claim 1, characterized in that: A base frame is fixedly provided on the bottom surface of the base plate, and two sliders are fixedly connected to the bottom of each bracket. The bottom ends of the two sliders are slidably connected to the base frame, and a slideway matching the slider is provided on the base frame. A slide groove is opened on the base plate, and the upper part of the slider slidably matches with the slide groove.

6. The fixing device for drilling a rocker arm shaft according to claim 5, characterized in that: A connecting plate is fixedly connected between the middle parts of the two sliding blocks, the connecting plate is located below the bottom plate, and a driving member is connected to the middle part of the connecting plate, and the driving member is fixedly mounted on the bottom frame.

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