A reaming jig

Abstract

The present application relates to the field of machining, in particular to a reaming jig, comprising a base, the base is provided with at least one mounting slot, the base is provided with a cantilever mechanism corresponding to the mounting slot, the cantilever mechanism comprises two limiting units, the two limiting units are respectively arranged on the two sides of the mounting slot, the limiting unit comprises a support frame, the support frame is provided with a fixing seat, the fixing seat is provided with a mounting hole, and the mounting hole is detachably provided with a limiting shaft. The reaming jig provided by the present application can put the frame of the special-shaped component into the mounting slot, insert the limiting shaft into the fixing seat on the top of the support frame, cantilever and fix the frame through the limiting shaft penetrating the top ear on the top of the frame, and the tail beam on the side of the frame can be supported through the top surface of the base, so that the tail beam and other workpieces can be cooperated for reaming on the base, and the reaming precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of machining, and in particular to a reaming fixture. Background Technology

[0002] Traditional reaming is a method that removes a small amount of metal from the hole wall of a workpiece using a reamer to improve its dimensional accuracy and surface quality. For smaller holes, reaming is a more economical and practical machining method compared to internal grinding and precision boring.

[0003] like Figure 1 The diagram shows a structural schematic of an irregularly shaped component 1. The component includes a frame 11 with two top lugs 111 on the top and two bottom lugs 112 on the bottom side. Both the top lugs 111 and the bottom lugs 112 have lug holes. The bottom of the frame 11 has no reference and cannot be placed stably on a workbench. A tail beam 12 is provided on one side of the frame, and the tail beam 12 has assembly holes. During use, the frame 11 needs to be installed onto the main frame through the top lugs 111 and the bottom lugs 112, and the tail beam 12 needs to be assembled and connected to other workpieces through the assembly holes. Therefore, during the manufacturing process, the tail beam 12 needs to be reamed with other workpieces under simulated assembly conditions to ensure the assembly accuracy of the tail beam 12 with other workpieces. However, due to the special shape of this irregularly shaped component, the tail beam 12 is in a suspended position, and traditional tooling fixtures are difficult to clamp stably, making it impossible to ensure the reaming accuracy of the assembly holes on the tail beam 12.

[0004] Therefore, a technical solution is needed to address the technical problem that traditional tooling fixtures cannot stably clamp irregularly shaped components with no reference at the bottom of the frame and a suspended tail beam on one side, which require assembling and reaming the tail beam with other workpieces. This makes it difficult to ensure the accuracy of the reaming. Summary of the Invention

[0005] The purpose of this invention is to provide a reaming fixture for irregularly shaped components with no reference at the bottom of the frame and a suspended tail beam on one side, which need to be assembled with other workpieces to make reaming holes. Traditional tooling fixtures are difficult to use to stably clamp irregularly shaped components and cannot ensure the accuracy of reaming holes.

[0006] The present invention provides a hinged hole clamp, including a base, the base having at least one mounting groove, a cantilever mechanism being provided on the base corresponding to the mounting groove, the cantilever mechanism including two limiting units, the two limiting units being respectively provided on both sides of the mounting groove, the limiting unit including a support frame, the support frame having a fixed seat, the fixed seat having a mounting hole, and the mounting hole having a detachable limiting shaft.

[0007] The hinge drilling clamp of the present application is used to place the frame of special-shaped components in the mounting groove, the tail beam of the side of the frame falls on the top surface of the base, the tail beam is supported by the base, the fixing seat on the top of the support frame is inserted into the limiting shaft, the limiting shaft passes through the ear on the top of the frame to cantilever fix the frame, so that the tail beam on the side of the frame is stably supported under the premise of fixing the frame, the cooperation of the tail beam with other workpieces on the base is facilitated, and the hinge drilling precision is ensured.

[0008] Preferably, the base comprises a base and a support table, and a support assembly is arranged between the base and the support table.

[0009] The base is composed of a base, a support assembly and a support table, and compared with directly using an integral solid base, the weight of the base is lower, the block manufacturing process is simpler, and the production cost of the whole clamp is reduced.

[0010] Preferably, the support assembly comprises a plurality of columns arranged around the edge of the base, and a cross bar, the top of each column is connected with the cross bar, and the support table is arranged on the cross bar.

[0011] The plurality of columns arranged around the edge of the base provide stable support for the cross bar at the top and the support table, and at the same time ensure that the whole support assembly uses less material and has smaller weight.

[0012] Preferably, an inclined strut is connected between two adjacent columns.

[0013] By connecting the inclined strut between the two columns, the pressure bearing capacity of the column is strengthened, and the stability of the support table of the device is improved.

[0014] Preferably, the limiting shaft is provided with a weight reduction hole penetrating through both ends of the limiting shaft along the axis direction of the limiting shaft.

[0015] The operation of the limiting shaft is usually completed by manual work, and the setting of the weight reduction hole can greatly reduce the weight of the limiting shaft, so that the installation and removal of the limiting shaft are more convenient.

[0016] Preferably, a rotating rod is arranged at the end of the limiting shaft away from the mounting groove.

[0017] The rotating rod provides a position for the operator to hold, and the operator can hold the rotating rod to perform flat pushing, rotating and other operations of the limiting shaft.

[0018] Preferably, in the same cantilever mechanism, one of the limiting units is provided with a pressure plate, and the pressure plate is detachably connected with one end of the limiting shaft through bolts.

[0019] After the limiting shaft passes through the ear piece on the top of the frame body, the pressing disc is connected at the end of the limiting shaft, so that the pressing disc can press the ear piece against the side of the fixing seat, thereby limiting the workpiece along the axial direction of the limiting shaft, and the workpiece is fixed more firmly, displacement is avoided during reaming, and the reaming accuracy is affected.

[0020] Preferably, the mounting groove is provided with an anti-rotation mechanism, the anti-rotation mechanism comprises a connecting seat, the top of the connecting seat is provided with a limiting block, the limiting block is provided with a U-shaped groove, and the U-shaped groove is provided with an anti-rotation pin.

[0021] When the two bottom ear pieces of the special-shaped component are placed on both sides of the limiting block, the anti-rotation pin is sequentially inserted through the first bottom ear piece, the limiting block and the second bottom ear piece, thereby limiting the horizontal rotation of the bottom of the frame body, wherein the U-shaped groove is used to install the anti-rotation pin, and on the basis of achieving horizontal anti-rotation, the problem that the anti-rotation pin cannot be connected with the bottom ear piece caused by the height error of the limiting block can be avoided to some extent, so that the anti-rotation pin and the two ear pieces are more easily connected.

[0022] Preferably, the top of the base is provided with a height adjusting mechanism, the height adjusting mechanism can be elongated or shortened, and the height adjusting mechanism is used to support the tail beam of the special-shaped component.

[0023] When the distance between the height of the top surface of the base and the axis of the limiting shaft deviates from the theoretical value, after the top ear piece of the special-shaped component is fixed by the limiting shaft, the tail beam may not fall on the top surface of the base, or the height of the tail beam is lower than the height of the top surface of the base, and there is installation interference, therefore, in the design, the distance from the mounting hole axis to the top surface of the base is designed to be larger than the theoretical value, after the top ear piece of the special-shaped component is fixed, the tail beam will be located above the top surface of the base, and then the bottom surface of the tail beam is supported by the height adjusting mechanism, so as to avoid the above problems.

[0024] Preferably, the number of the mounting grooves is two, and the two mounting grooves are symmetrically arranged on both sides of the base.

[0025] When it is needed to connect two mutually symmetrical special-shaped components together through other workpieces, the left special-shaped component needs to be cooperated with the other workpieces for reaming, and the right special-shaped component also needs to be cooperated with the other workpieces for reaming, therefore, two mounting grooves are symmetrically arranged on the base in the present scheme, and each mounting groove is provided with a cantilever mechanism, so that the tail beams of the two symmetrical special-shaped components can be simultaneously cooperated with the shared other workpieces for reaming, the clamping times are reduced, and the reaming error caused by repeated clamping is avoided.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] The present invention provides a reaming fixture, which allows the frame of an irregularly shaped component to be placed into the mounting groove on the base. A limiting shaft is inserted into the fixed seat at the top of the support frame. The limiting shaft passes through the top lug at the top of the frame to cantilever and fix the frame. The tail beam on the side of the frame can be supported by the top surface of the base, which facilitates the reaming of the tail beam with other workpieces on the base and ensures the accuracy of the reaming. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of an irregularly shaped component with a hole to be reamed;

[0029] Figure 2 This is an isometric view of a reaming fixture according to the present invention;

[0030] Figure 3 yes Figure 2 Enlarged view of area A in the middle;

[0031] Figure 4 yes Figure 2 Enlarged view of area B in the middle;

[0032] Figure 5 This is an isometric view of a reaming fixture of the present invention in use;

[0033] Figure 6 yes Figure 5 Enlarged view of area C;

[0034] Figure 7 This is a top view of the reaming fixture of the present invention in use;

[0035] Figure 8 yes Figure 7 Enlarged view of area D in the middle;

[0036] Marked in the image:

[0037] 1-Irregularly shaped component, 11-Frame, 111-Top lug, 112-Bottom lug, 113-Lumber lug hole, 12-Tail beam, 2-Base, 201-Mounting groove, 21-Base, 22-Support platform, 23-Support assembly, 231-Column, 232-Horizontal bar, 233-Diagonal brace, 3-Cantilever mechanism, 31-Limiting unit, 311-Support frame, 312-Fixing seat, 3121-Mounting hole, 313-Limiting shaft, 3131-Pressure plate, 3132-Weight reduction hole, 3133-Rotating rod, 4-Anti-rotation mechanism, 41-Connecting seat, 42-Limiting block, 421-U-shaped groove, 43-Anti-rotation pin, 5-Other workpieces, 6-Adjusting unit, 61-Screw, 62-Turntable, 63-Pressure nut. Detailed Implementation

[0038] The application will be described in further detail below with reference to the embodiments. However, it should be understood that the scope of the above subject matter of the application is not limited to the following embodiments, and any technology achieved based on the content of the application falls within the scope of the application.

[0039] In the description of the embodiments of the application, the terms of orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are expressed based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product / device / apparatus of the application is usually placed, unless otherwise specified. These terms of orientation or positional relationship are only used for the convenience of describing the application or simplifying the description in the embodiments, for the convenience of the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore cannot be understood as a limitation on the application.

[0040] In addition, if the terms "horizontal", "vertical", "suspended", "parallel", etc. appear, it does not mean that the corresponding device / component / element must be absolutely horizontal or vertical or suspended or parallel, but can be slightly inclined or deviated. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to mean that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "suspended", "parallel", etc., and can have an error / deviation of ±10% with respect to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the application.

[0041] In addition, the terms "first", "second", "third", etc. appearing in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0042] In addition, in the description of the embodiments of the application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, and can even be more than 9.

[0043] Furthermore, in the description of the technical solutions of the present application, unless otherwise explicitly specified / limited / limited, the terms "arranged", "mounted", "connected", "connected", "provided with", "laid", "arranged" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.

[0044] Embodiment 1

[0045] As shown in Figure 1 , Figure 2 and Figure 5 , a reaming jig, comprising a base, the base is provided with at least one mounting groove 201, the base 2 is provided with a cantilever mechanism 3 corresponding to the mounting groove 201, the cantilever mechanism 3 comprises two limiting units 31, two limiting units 31 are arranged on both sides of the mounting groove 201 respectively, the limiting unit 31 comprises a support frame 311, the support frame 311 is provided with a fixed seat 312, the fixed seat 312 is provided with a mounting hole, the mounting hole is detachably provided with a limiting shaft 313, wherein the limiting shaft 313 can be connected with the mounting hole of the fixed seat 312 by threaded connection, or can be directly nested in the mounting hole.

[0046] In use, the frame 11 of the special-shaped component 1 is placed in the mounting groove 201, the tail beam 12 on the side of the frame 11 falls on the top surface 2 of the base, the tail beam 12 is supported by the base 2, the limiting shaft is inserted into the fixed seat 312 on the top of the support frame 311, and the frame 11 is cantilevered and fixed by the limiting shaft 313 passing through the top ear 111 of the frame 11, so that the tail beam 12 on the side of the frame 11 is stably supported under the premise of fixing the frame 11, facilitating the cooperation of the tail beam 12 with other workpieces 5 on the base 2 for reaming, and ensuring the reaming accuracy.

[0047] The base 2 comprises a base 21 and a support table 22, the support table 22 is provided with an avoiding groove corresponding to the mounting groove 201 on the top surface, the avoiding groove is arranged at one side of the mounting groove 201 extending into the support table 22, the support frame 311 at the side is arranged at the bottom of the avoiding groove and extends out of the avoiding groove upwardly, the avoiding groove not only facilitates the arrangement of the support frame 311 at the side, but also can greatly reduce the weight of the base 2, reduce the cost investment, and facilitate the movement of the whole base 2, the support assembly 23 is arranged between the base 21 and the support table 22, the support assembly 23 comprises a plurality of stand columns 231 and a horizontal rod 232, the plurality of stand columns 231 are arranged around the edge of the base 21, each stand column 231 is connected with the horizontal rod 232 at the top, and the support table 22 is arranged on the horizontal rod 232, and the inclined struts 233 are connected between adjacent two stand columns 231.

[0048] Embodiment 2

[0049] As shown in Figure 2 and Figure 5 , the difference between the embodiment and embodiment 1 is that one of the limiting units 31 is provided with a pressure plate in the same cantilever mechanism 3, and the pressure plate 3131 is detachably connected with one end of the limiting shaft 313 through bolts.

[0050] In the embodiment, after the limiting shaft 313 passes through the top ear 111 of the frame body 11, the pressure plate 3131 is connected at the end of the limiting shaft 313, so that the pressure plate 3131 can press the top ear 111 tightly on the side of the fixing seat 312, thereby limiting the frame body 11 in the axial direction of the limiting shaft 313, making the frame body 11 fixed more firmly, avoiding displacement during reaming, and affecting the reaming accuracy.

[0051] Embodiment 3

[0052] As shown in Figure 2 , Figure 5 , and Figure 6 , the difference between the embodiment and embodiment 1 is that the limiting shaft 313 is provided with a weight-reducing hole 3132, and the weight-reducing hole 3132 penetrates through both ends of the limiting shaft 313 along the axial direction of the limiting shaft 313.

[0053] The operation of the limiting shaft 313 usually needs to be completed by manual work, in the embodiment, by arranging the weight-reducing hole 3132 on the limiting shaft 313, the weight of the limiting shaft 313 can be greatly reduced, so that the installation and removal of the limiting shaft 313 are more convenient.

[0054] Further, the limiting shaft 313 is provided with a rotating rod 3133 at one end away from the mounting groove 201, which provides a position for the operator to hold, and the operator can hold the rotating rod 3133 to perform the flat pushing, rotating and other operations of the limiting shaft 313.

[0055] Embodiment 4

[0056] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 , the difference between the embodiment and embodiment 1 is that the mounting groove 201 is provided with an anti-rotation mechanism 4, the anti-rotation mechanism 4 includes a connecting seat 41, the top of the connecting seat 41 is provided with a limiting block 42, the limiting block 42 is provided with a U-shaped groove 421, and the U-shaped groove 421 is provided with an anti-rotation pin 43.

[0057] In this embodiment, the two bottom ear pieces 112 of the frame body 11 of the special-shaped component 1 are placed on both sides of the limiting block 42, and the anti-rotation pin 43 is sequentially inserted through the first bottom ear piece 112, the limiting block 42 and the second bottom ear piece 112, thereby limiting the horizontal rotation of the bottom of the frame body 11. In this embodiment, the U-shaped groove 421 is used to install the anti-rotation pin 43, which can avoid the problem that the anti-rotation pin 43 cannot be connected with the bottom ear piece 112 due to the height error of the limiting block 42 to a certain extent, and make the connection of the anti-rotation pin and the two bottom ear pieces easier.

[0058] Embodiment 5

[0059] As shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the difference between the embodiment and embodiment 1 is that the base 2 is provided with a height adjusting mechanism at the top, the height adjusting mechanism can be elongated or shortened, and the height adjusting mechanism is used to support the tail beam 12 of the special-shaped component 1.

[0060] When the distance between the height of the top surface of the base 2 and the axis of the limiting shaft 313 deviates from the theoretical value, after the top ear piece 111 of the special-shaped component 1 is fixed by the limiting shaft 313, the tail beam may not fall on the top surface of the base 2, or the height of the tail beam 12 is lower than the height of the top surface of the base 2, which causes installation interference. In this embodiment, the distance from the axis of the mounting hole 3121 to the top surface of the base 2 is designed to be larger than the theoretical value, after the top ear piece 111 of the special-shaped component 1 is fixed, the tail beam 12 will be located above the top surface of the base 2, and then the height adjusting mechanism is used to support the bottom surface of the tail beam 12, so as to avoid the above problems.

[0061] The height adjusting mechanism comprises a plurality of height adjusting units 6 arranged on the top surface of the base 2 along the shape of the tail beam 12. Each height adjusting unit 6 comprises a screw rod 61 which is threadedly connected to the top surface of the base 2. A rotating disc 62 is arranged around the side of the screw rod 61 to facilitate the rotation of the screw rod 61. A compression nut 63 is sleeved on the screw rod 61 and abuts against the top surface of the base 2 to prevent the screw rod 61 from loosening.

[0062] Embodiment 6

[0063] As shown in Figure 2 and Figure 5 In this embodiment, the difference from the embodiment 1 is that the number of the mounting grooves 201 is two, and the two mounting grooves 201 are symmetrically arranged on the two sides of the base 2.

[0064] In this embodiment, when it is needed to connect two mutually symmetrical special-shaped members 1 together through other workpieces 5, the left special-shaped member 12 needs to be reamed in cooperation with the other workpieces 5, and the right special-shaped member 12 also needs to be reamed in cooperation with the other workpieces 5. Therefore, two mounting grooves 201 are symmetrically arranged on the base 2 in this scheme, and a cantilever mechanism 3 is arranged in cooperation with each mounting groove 201, so that the tail beams 12 of the two symmetrical special-shaped members 1 can be simultaneously reamed in cooperation with the shared other workpieces 5, the clamping times are reduced, and the reaming error caused by repeated clamping is avoided.

[0065] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reaming fixture, characterized in that, The system includes a base (2) having at least one mounting groove (201). A cantilever mechanism (3) is provided on the base (2) corresponding to the mounting groove (201). The cantilever mechanism (3) includes two limiting units (31), which are respectively located on both sides of the mounting groove (201). Each limiting unit (31) includes a support frame (311) with a fixed seat (312) and a mounting hole. The mounting hole is detachably provided with a limiting shaft (313). In the same cantilever mechanism (3), one of the limiting units... Unit (31) is provided with a pressure plate (3131), which is detachably connected to one end of the limiting shaft (313) by bolts. The bottom of the mounting groove (201) is provided with an anti-rotation mechanism (4), which includes a connecting seat (41). The top of the connecting seat (41) is provided with a limiting block (42), which is provided with a U-shaped groove (421). The U-shaped groove (421) is equipped with an anti-rotation pin (43). The top of the base (2) is provided with a height adjustment mechanism, which can be extended or shortened. The height adjustment mechanism is used to support the tail beam (12) of the irregular component (1).

2. The reaming fixture according to claim 1, characterized in that, The base (2) includes a base (21) and a support platform (22), and a support component (23) is provided between the base (21) and the support platform (22).

3. A reaming fixture according to claim 2, characterized in that, The support assembly (23) includes a plurality of columns (231) arranged around the edge of the base (21), and also includes a crossbar (232). The top of each column (231) is connected to the crossbar (232), and the support platform (22) is arranged on the crossbar (232).

4. A reaming fixture according to claim 3, characterized in that, A diagonal brace (233) connects two adjacent columns (231).

5. A reaming fixture according to claim 1, characterized in that, The limiting shaft (313) is provided with a weight reduction hole (3132), which extends through both ends of the limiting shaft (313) along the axial direction of the limiting shaft (313).

6. A reaming fixture according to claim 5, characterized in that, A rotating rod (3133) is provided at the end of the limiting shaft (313) away from the mounting groove (201).

7. A reaming fixture according to any one of claims 1-6, characterized in that, The number of mounting slots (201) is two, and the two mounting slots (201) are symmetrically arranged on both sides of the base (2).

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