Accurate positioning support tool

Abstract

The utility model relates to a precise positioning support tool, and belongs to the field of machining positioning toolings, the precise positioning support tool comprises a working platform and a fastening assembly, the upper surface of the working platform is provided with a positioning column, and the positioning column is clamped in a through hole; the fastening assembly is arranged on the working platform and comprises two L-shaped supports, each L-shaped support comprises a first telescopic rod and a horizontal rod which are perpendicular to each other, the lower side of each horizontal rod can abut against the upper side of the corresponding support, a cavity is formed in the position, corresponding to the corresponding L-shaped support, of the working platform, and the first telescopic rods vertically extend downwards into the cavities. A turbine is arranged in the cavity, and the turbine is coaxially and fixedly arranged at the lower end of the first telescopic rod; a worm meshed with the turbine is arranged on one side of the turbine, one end of the worm penetrates through the working platform and is fixedly connected with a hand wheel, and the hand wheel rotates to drive the two L-shaped supports to rotate and fix the support to the working platform. The machining method has the effect of improving the machining precision of the support.

Description

Technical Field

[0001] The present application relates to the field of machining and positioning tooling, and in particular to a precisely positioned support tooling. Background Art

[0002] A support is usually a base to which other workpieces are attached. Figure 1 The horizontal cross-section of the support 1 is convex, and chamfers are provided at both ends of the convex raised portion 11 of the support 1; a through hole 12 is provided on the upper surface of the support, the through hole 12 is perpendicular to the upper surface of the support 1, and the through hole 12 is arranged close to the raised portion 11.

[0003] In the current process, the support, as an important connecting component, needs to use a machining center to tap the inner wall of the through hole on the support to ensure stability and accuracy during the machining process.

[0004] Regarding the above-mentioned related technologies, the general processing process is to place the support to be processed between the positioning columns, and the positioning columns cooperate to abut against the two ends of the support along the length direction and the two ends along the width direction. However, when processing threads on the support, due to the effect of the processing force, the support may produce an upward displacement relative to the positioning block, resulting in the lower part of the through hole that should not be processed may also be processed with threads, resulting in errors in the workpiece processing. Utility Model Content

[0005] In order to improve the machining accuracy of the support, the present application provides a support tooling with precise positioning.

[0006] The present application provides a precisely positioned support fixture that adopts the following technical solution:

[0007] The bolt has a groove for use in the upper and lower surfaces of the work platform, and the groove is connected to the upper and lower surfaces of the work platform so that the upper and lower surfaces of the work platform are aligned with the groove of the upper and lower surfaces of the work platform.

[0008] By adopting the above technical solution, the worm gear mechanism can be driven to rotate simultaneously by turning the hand wheel, thereby realizing the rotation and downward pressing of the horizontal rod of the L-shaped bracket toward the support, and fixing the support on the working platform. The stable fixation of the support is achieved by the coordinated use of the L-shaped bracket and the worm gear transmission mechanism.

[0009] Optionally, the telescopic rod includes an inner rod and an outer rod coaxially arranged, the outer rod is sleeved on the outside of the inner rod and slides up and down along the axis of the inner rod, the inner rod and the outer rod rotate synchronously, and a lower end of the inner rod is fixed to the turbine; a protrusion is arranged on the circumferential surface of the outer rod; a sliding groove is opened on the inner wall of the cavity corresponding to the position of the protrusion, the protrusion is clamped in the sliding groove and slides along the sliding groove.

[0010] By adopting the above technical solution, the inner rod 1 and the outer rod 1 of the telescopic rod 1 slide relative to each other, the protrusion on the outer rod cooperates with the slide groove, and the inner rod 1 drives the outer rod 1 to rotate while realizing the lifting and lowering of the outer rod 1.

[0011] Optionally, a telescopic rod 2 is fixedly provided on the lower side of the horizontal rod at a position away from the telescopic rod 1, and the telescopic rod 2 includes an outer rod 2 and an inner rod 2. The upper end of the outer rod 2 is fixedly connected to the lower side of the horizontal rod, and the inner rod 2 is arranged inside the outer rod and slides along the axis of the outer rod, and an abutment is fixedly provided on the lower end of the inner rod 2. A compression spring is provided on the outer sleeve of the telescopic rod 2, one end of the compression spring is fixedly connected to the horizontal rod, and the other end is fixedly connected to the abutment, and the compression spring applies a force to the abutment in a direction away from the horizontal rod.

[0012] By adopting the above technical solution, the design of the telescopic rod 2 enables the abutment portion to be telescopic as required, adapt to supports of different sizes, and provide a stable pressing force through the compression spring.

[0013] Optionally, the abutting portion is provided by a rubber member.

[0014] By adopting the above technical solution, the abutting part adopts a rubber piece, which increases the friction force of contact with the support and protects the surface of the support from damage.

[0015] Optionally, a chamfer is provided at the lower end of the abutting portion.

[0016] By adopting the above technical solution, when the horizontal rod is rotated onto the support, the chamfer plays a guiding role, and the auxiliary abutment portion abuts against the upper surface of the support better.

[0017] Optionally, the fastening assembly is further provided with a first positioning block, the upper surface of the working platform is provided with a first groove, the first positioning block is detachably connected to the first groove, and the first positioning block can abut against a side of the support away from the protrusion.

[0018] By adopting the above technical solution, the second positioning block can be provided to limit the side wall of the support away from the protruding portion.

[0019] Optionally, the fastening assembly is further provided with a second positioning block, the upper surface of the working platform is provided with a second groove, the second positioning block is detachably connected to the second groove, and the first positioning block can abut against one end of the support along the length direction.

[0020] By adopting the above technical solution, the second positioning block can be provided to limit the side wall of the support along one side of the length direction.

[0021] Optionally, a plurality of groups of the fastening assemblies are arranged on the working platform, and the turbines corresponding to each group of the fastening assemblies are meshed with the worm.

[0022] By adopting the above technical solution, multiple sets of fastening components are arranged on the working platform to realize the fixed clamping of multiple sets of supports at the same time, thereby improving efficiency. Moreover, the clamping method and clamping effect of each set of fastening components on the supports are the same, which can meet the high-precision clamping of the supports and reduce the processing errors between different supports.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The worm gear mechanism can be driven by turning the hand wheel, thereby realizing the rotation and fixation of the horizontal rod of the L-shaped bracket toward the support. This design makes the tooling easy to operate, improves work efficiency while ensuring clamping accuracy, and reduces operating difficulty;

[0025] 2. Both telescopic rod 1 and telescopic rod 2 are provided with sliding and rotating mechanisms to ensure their stability during operation. At the same time, the design of the compression spring enables the abutment to always maintain the compression force on the support, further enhancing the stability of the support;

[0026] 3. The provision of the first positioning block and the second positioning block can clamp and position the other two side walls of the support, further enhancing the adaptability of the tooling to the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of a high-precision support;

[0028] Figure 2 It is a structural schematic diagram of a precisely positioned support tooling of the present application;

[0029] Figure 3 It is a structural schematic diagram of a protruding positioning column of a precisely positioned support tooling of the present application;

[0030] Figure 4 It is a structural schematic diagram of a protruding worm of a precisely positioned support tooling of the present application;

[0031] Figure 5 It is a cross-sectional view of a protruding slide groove of a precisely positioned support tooling of the present application.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. support; 11. raised portion; 12. through hole; 2. working platform; 21. positioning column; 22. cavity; 221. slide groove; 23. first groove; 24. second groove; 3. fastening assembly; 31. telescopic rod one; 311. outer rod one; 3111. protrusion; 312. inner rod one; 313. return spring; 32. horizontal rod; 33. telescopic rod two; 331. outer rod two; 332. inner rod two; 333. abutment portion; 334. compression spring; 4. turbine; 5. worm; 51. handwheel; 6. first positioning block; 7. second positioning block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0036] The present application embodiment discloses a support tooling for precise positioning. Figure 1 and 2A precisely positioned support tooling includes a working platform 2 and a fastening assembly 3. The working platform 2 is used to place and support the support 1, so as to facilitate the subsequent processing of the support 1. The fastening assembly 3 is installed on the working platform 2, and the fastening assembly 3 fixes the support 1 on the working platform 2, so that the support 1 and the working platform 2 do not move relative to each other, thereby ensuring the processing accuracy of the support 1.

[0037] refer to Figure 2-3 The working platform 2 is a rectangular plate, and a cylindrical positioning column 21 is fixedly provided on the upper surface of the working platform 2. The diameter of the positioning column 21 is the same as the diameter of the through hole 12. When the support 1 is placed on the working platform 2, the through hole 12 of the support 1 is placed corresponding to the positioning column 21, and the inner wall of the through hole 12 can abut against the circumferential surface of the positioning column 21. The protruding height of the positioning column 21 is lower than the height of the threaded part that does not need to be processed in the through hole 12, and the positioning column 21 avoids the surface to be processed of the through hole 12. A cavity 22 is opened inside the working platform 2, and a worm 5 is rotatably connected in the cavity 22. The worm 5 is arranged along the length direction of the working platform 2. One end of the worm 5 is penetrated through the working platform 2 and is coaxially fixed with a handwheel 51. When the handwheel 51 is turned, the handwheel 51 drives the worm 5 to rotate synchronously.

[0038] refer to Figure 3-5 , the fastening assembly 3 is arranged on the working platform 2, and the fastening assembly 3 includes two groups of L-shaped brackets. When the support 1 is placed on the surface of the positioning column 21, the two groups of L-shaped brackets are symmetrically arranged at both ends of the support 1 along the length direction. Each group of L-shaped brackets includes a telescopic rod 31 and a horizontal rod 32 arranged perpendicular to each other. One end of the horizontal rod 32 is fixed to the upper end of the telescopic rod 31 along the length direction, and the cross-section of the horizontal rod 32 is square. The telescopic rod 31 is arranged vertically, and the telescopic rod 31 is downwardly penetrated through the working platform 2 and extends into the cavity 22. The telescopic rod 31 includes an inner rod 312 and an outer rod 311 arranged coaxially. The inner rod 312 is a square rod, and a square deep groove that can match the inner rod 312 is opened at the lower end of the outer rod. The outer rod 311 is sleeved on the outer side of the inner rod 312, so that the inner rod 312 can drive the outer rod 311 to rotate synchronously, and the outer rod 311 can slide up and down along the axis direction of the inner rod 312. The lower end of the inner rod 312 is coaxially fixed with a turbine 4, which is horizontally arranged and rotatably connected to the inner wall of the cavity 22, and meshes with the worm 5. When the hand wheel 51 is rotated counterclockwise to drive the worm 5 to rotate, the worm 5 drives the turbine 4 to rotate, and the horizontal rod 32 is driven to rotate clockwise around the axis of the telescopic rod 31 through the telescopic rod 31 coaxially fixed with the turbine 4.

[0039] refer to Figure 5A protrusion 3111 is fixedly arranged on the circumference of the outer rod 311 at a position close to the inner rod 312, and a slide groove 221 is provided at the position corresponding to the protrusion 3111 on the inner wall of the cavity 22. The width of the slide groove 221 is adapted to the width of the protrusion 3111, and the protrusion 3111 can be inserted into the slide groove 221 and slide along the slide groove 221. The slide groove 221 is composed of an upper horizontal section, an inclined section and a lower horizontal section which are connected smoothly in sequence. The upper horizontal section of the slide groove 221 is located at a position of the cavity 22 that is away from the support 1 corresponding to the outer rod 311. The inclined section of the slide groove 221 is arranged around the circumference of the outer rod 311 in a counterclockwise direction downward and close to the support 1. The abutment position of the inclined section and the lower horizontal section of the slide groove 221 is located at a position close to the support 1 corresponding to the outer rod 311 in the cavity 22. When the turbine 4 rotates, the telescopic rod 31 abuts against the protrusion 3111 when it is located in the upper horizontal section, and the horizontal rod 32 moves away from the support 1 along the length direction of the support 1; when the protrusion 3111 is located in the inclined section, the protrusion 3111 slides downward along the inclined section, and the slider drives the outer rod 311 to move downward while rotating synchronously with the inner rod 312, and the outer rod 311 drives the horizontal rod 32 to approach the upper end of the support 1; when the cam is located in the lower horizontal section, the outer rod 311 drives the horizontal rod 32 to approach the support 1 along the length direction of the support 1, and the horizontal rod 32 fixes the support 1 to the working platform 2. A return spring 313 is provided on the outer sleeve of the inner rod 312. The return spring 313 is vertically arranged along the axial direction of the inner rod 312. The lower end of the return spring 313 is fixedly connected to the turbine 4 fixedly connected to the inner rod 312, and the upper end of the return spring 313 is fixedly connected to the lower end of the outer rod 311. When the return spring 313 is in a natural state, the protrusion 3111 is located in the upper horizontal section. At the same time, the return spring 313 can pull the outer rod 311 to prevent the outer rod 311 from escaping from the cavity 22.

[0040] refer to Figure 5A telescopic rod 2 33 is fixedly arranged at the lower side of the horizontal rod 32 away from the position of the telescopic rod 1 31. The telescopic rod 2 33 includes an outer rod 2 331 and an inner rod 2 332 arranged coaxially. The upper end of the outer rod 2 331 is vertically fixed to the lower side of the horizontal rod 32. The lower end of the outer rod 2 331 is coaxially provided with a deep groove whose inner diameter matches the inner rod 2 332. The inner rod 2 332 is slidably connected in the deep groove and can slide up and down along the axis. The lower end of the inner rod 2 332 is fixedly connected with an abutment portion 333. When the horizontal rod 32 is pressed down, the lower end of the abutment portion 333 can abut against the upper surface of the support 1. The diameter of the abutment portion 333 is larger than the diameter of the inner rod 2 332, which increases the abutment area when pressed down and improves the stability of the fastening assembly 3 when fixing the support 1. The design of the telescopic rod 2 33 enables the abutment portion 333 to be adaptively adjusted according to the actual situation of the support 1. A compression spring 334 is sleeved on the outer coaxial line of the telescopic rod 33, one end of the compression spring 334 is fixed to the lower side of the horizontal rod 32, and the other end is fixed to the upper end of the abutment 333. The compression spring 334 abuts the abutment 333 to exert a force away from the horizontal rod 32. The existence of the compression spring 334 ensures that the abutment 333 always applies a certain pressure to the support 1, making it fit tightly, further enhancing the stability of the support 1. The abutment 333 is set with a rubber part, and a chamfer is provided at the lower end, which can not only increase the friction with the support 1 and improve the fixing effect, but also protect the support 1 and the tooling to a certain extent, avoiding scratches or damage during the fixing process.

[0041] refer to Figure 2 and 3 The upper surface of the working platform 2 is provided with a first groove 23, and the fastening assembly 3 is also provided with a first positioning block 6. The size of the bottom surface of the first positioning block 6 is consistent with the shape and size of the groove. The upper surface of the first positioning block 6 is penetrated by a bolt, which is vertically penetrated by the first positioning block 6 and threadedly connected to the working platform 2. The bolt fixes the first positioning block 6 to the working platform 2. One side of the first positioning block 6 can abut against the side of the support 1 away from the protrusion 11, and the first positioning block 6 effectively prevents itself from rotating when the bracket is processed.

[0042] refer to Figure 2 and 3 The upper surface of the working platform 2 is also provided with a second groove 24, and the fastening assembly 3 is also provided with a second positioning block 7. The size of the bottom surface of the second positioning block 7 is the same as the shape and size of the groove. The upper surface of the second positioning block 7 is penetrated by a bolt, which is vertically penetrated by the first positioning block 6 and threadedly connected to the working platform 2. The bolt fixes the first positioning block 6 to the working platform 2. One side of the second positioning block 7 can abut against one side of the support 1 along the length direction. The second positioning block 7 effectively prevents itself from rotating when the bracket is processed. The first positioning block 6 and the second positioning block 7 cooperate to further limit the movement of the support 1 and achieve high-precision positioning.

[0043] refer to Figure 2 and Figure 4 Two groups of fastening assemblies 3 are arranged in an array along the length direction on the working platform 2, and each inner rod 312 of the fastening assembly 3 is coaxially fixed with a corresponding turbine 4, and the turbine 4 can mesh with the worm 5. The fastening assembly 3 is also symmetrically arranged in two groups along the axis direction of the worm 5. By turning the handwheel 51, the four groups of supports 1 can be accurately clamped and fixed at the same time. In the worm gear 5 transmission system, when the handwheel 51 stops rotating, the gear will automatically lock to prevent the reverse phenomenon when the transmission stops. This self-locking phenomenon makes the transmission safer and more reliable, enhances the stability of the clamping of the support 1, and improves the processing accuracy of the support 1.

[0044] The implementation principle of a precisely positioned support tooling in the embodiment of the present application is as follows: the first positioning block 6 is placed in the first groove 23 for fixing, and the second positioning block 7 is placed in the second groove 24 for fixing. Then the support 1 tooling is placed on the working area of ​​the machining center. The through hole 12 of the support 1 is placed on the platform corresponding to the positioning column 21, and at the same time, the adjacent two sides of the support 1 away from the upper convex part are abutted against the first positioning block 6 and the second positioning block 7. After the supports 1 are aligned one by one, the handwheel 51 is turned, and through the transmission mechanism of the turbine 4 and worm 5, the handwheel 51 drives the horizontal rod 32 to rotate in the direction close to the support 1, thereby achieving the fixation of the support 1 and facilitating the thread processing. After the processing is completed, the handwheel 51 is turned in the opposite direction to rotate the horizontal rod 32 in the direction away from the support 1, releasing the support 1, so that the staff can take out the support 1 and complete the unloading.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precisely positioned support tool, characterized in that: The invention comprises a working platform (2) and a fastening assembly (3), wherein a positioning column (21) is arranged on the upper surface of the working platform (2), wherein the positioning column (21) is clamped in a through hole (12), and the protruding height of the positioning column (21) is lower than the position of the thread processed in the through hole (12); the fastening assembly (3) is arranged on the working platform (2), and the fastening assembly (3) comprises two groups of L-shaped brackets, wherein each group of L-shaped brackets comprises a telescopic rod (31) and a horizontal rod (32) arranged perpendicularly to each other, wherein the lower side of the horizontal rod (32) can abut against the upper side of the support (1), and the working platform (2) is located at a position corresponding to the L-shaped bracket. A cavity (22) is provided, and the telescopic rod (31) extends vertically downward into the cavity (22); a turbine (4) is provided in the cavity (22), and the turbine (4) is coaxially fixed to the lower end of the telescopic rod (31); a worm (5) is provided on one side of the turbine (4), and the worm (5) is meshed with the turbine (4); one end of the worm (5) is passed through the working platform (2) and is fixedly connected to a hand wheel (51); the hand wheel (51) rotates to drive the horizontal rods (32) of the two groups of L-shaped brackets to rotate in a direction close to the support (1) and fix the support (1) to the working platform (2).

2. The precise positioning support tooling according to claim 1, characterized in that: The telescopic rod (31) comprises an inner rod (312) and an outer rod (311) which are coaxially arranged, the outer rod (311) being sleeved on the outer side of the inner rod (312) and sliding up and down along the axis of the inner rod (312), the inner rod (312) and the outer rod (311) rotating synchronously, the lower end of the inner rod (312) being fixedly connected to the turbine (4); a convex block (3111) is arranged on the circumferential surface of the outer rod (311); a sliding groove (221) is provided on the inner wall of the cavity (22) at a position corresponding to the convex block (3111), the convex block (3111) being clamped in the sliding groove (221) and sliding along the sliding groove (221).

3. The precise positioning support tooling according to claim 2, characterized in that: A second telescopic rod (33) is fixedly provided on the lower side of the horizontal rod (32) at a position away from the first telescopic rod (31), and the second telescopic rod (33) comprises a second outer rod (331) and a second inner rod (332), the upper end of the second outer rod (331) is fixedly connected to the lower side of the horizontal rod (32), the second inner rod (332) is arranged inside the outer rod and slides along the axis direction of the outer rod, and the lower end of the second inner rod (332) is fixedly provided with an abutment portion (333); a compression spring (334) is provided on the outer sleeve of the second telescopic rod (33), one end of the compression spring (334) is fixedly connected to the horizontal rod (32), and the other end is fixedly connected to the abutment portion (333), and the compression spring (334) applies a force to the abutment portion (333) in a direction away from the horizontal rod (32).

4. The precise positioning support tooling according to claim 3 is characterized in that: The abutting portion (333) is provided by a rubber member.

5. The precise positioning support tooling according to claim 3, characterized in that: The lower end of the abutting portion (333) is provided with a chamfer.

6. The precise positioning support tooling according to claim 3, characterized in that: The fastening assembly (3) is also provided with a first positioning block (6), the upper surface of the working platform (2) is provided with a first groove (23), the first positioning block (6) is detachably connected to the first groove (23), and the first positioning block (6) can abut against a side of the support (1) away from the protruding portion (11).

7. The precise positioning support tool according to claim 6, characterized in that: The fastening assembly (3) is also provided with a second positioning block (7), the upper surface of the working platform (2) is provided with a second groove (24), the second positioning block (7) is detachably connected to the second groove (24), and the first positioning block (6) can abut against one end of the support (1) along the length direction.

8. The precise positioning support tooling according to claim 7, characterized in that: A plurality of groups of the fastening components (3) are arranged on the working platform (2), and the turbine (4) corresponding to each group of the fastening components (3) is meshed with the worm (5).

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