Tool clamp for machining thin-wall part
By designing a flip table and combined fixtures, the problems of deformation and cutting accuracy in the machining of thin-walled parts are solved, achieving efficient clamping and highly adaptable machining results.
Patent Information
- Application Number
- CN202522525368.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-11-28
AI Technical Summary
Thin-walled parts are prone to deformation during machining, have low cutting accuracy, and require complicated clamping, making them difficult to adapt to machining requirements of different shapes.
It adopts a combination of a flipping worktable, positioning components, support columns, locking plates and drive components. The positioning components prevent indentation and deformation, and the drive components enable flexible locking and unlocking of the support columns, adapting to thin-walled parts of different shapes.
It effectively avoids deformation of thin-walled parts, improves cutting accuracy and clamping efficiency, adapts to thin-walled parts of different shapes, and enhances machining consistency and versatility.
Smart Images
Figure CN223811841U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of fixture, specifically is a tool fixture for thin -walled part processing. BACKGROUND
[0002] Thin -walled part (such as aviation aluminum alloy frame, optical lens support) because thin (thickness is less than or equal to 2mm), complex shape (has multiple plane parts and curved surface parts), poor rigidity, in milling, drilling and other processing processes face the following problems:
[0003] Clamping deformation: traditional rigid fixture (such as vice, pressing plate) through fixed point force, local pressure can reach 50MPa above, leading to the plastic deformation of workpiece will produce 0.1mm, produce recess;
[0004] Low cutting accuracy: the plane part and curved surface part of thin -walled part are difficult to obtain uniform support when cutting, and the cutting vibration of the tool head will form the " let tool " phenomenon, influence processing accuracy.
[0005] Deformation will directly affect the consistency of thin -walled part product, in addition, the clamping and dismounting process of thin -walled part is also more complex, poor universality, difficult to adapt to the processing demand of different shape thin -walled part.
[0006] Therefore, in order to solve the above problems, a tool fixture for thin -walled part processing is provided. CONTENT OF UTILITY MODEL
[0007] The utility model aims at providing a tool fixture for thin -walled part processing, can avoid the deformation of thin -walled part, and the clamping efficiency is high, to solve the problem raised in the above background art.
[0008] To achieve the above object, the utility model provides the following technical scheme:
[0009] A tool fixture for thin -walled part processing, including turnover workbench, the pivot between the turnover workbench is fixedly installed with work tank, the upper side of work tank is installed with the positioning assembly for positioning thin -walled part, the top of work tank is evenly provided with vertical hole, the vertical hole is all inserted and installed with the support column for supporting thin -walled part, the inside of work tank is installed with two locking plates through guide assembly, two locking plates are horizontally and mutually parallel, the center of upper locking plate is provided with the first sliding slot of oblique arrangement, the center of lower locking plate is provided with the second sliding slot of oblique arrangement, the first sliding slot and second sliding slot are symmetrically arranged, the inside of work tank is installed with drive assembly on the lower side, the upper end of drive assembly is slidably installed in the first sliding slot and second sliding slot, locking plate is evenly provided with long slot, the bottom of support column passes through the long slot of upper and lower alignment.
[0010] Specific, the number of positioning components is three and is triangularly distributed.
[0011] Specific, the positioning component includes a light rod screw and a sleeve, a screw hole is formed in the top of the working box, the light rod screw is screw-connected with the screw hole, and the light rod screw is sleeved with the sleeve.
[0012] Specific, the support column includes a ball head, a first column rod and a second column rod, the first column rod is inserted into the vertical hole, the top of the first column rod is fixedly installed with the ball head, the bottom of the first column rod is fixedly installed with the second column rod, the second column rod passes through the long hole aligned up and down, and the diameter of the ball head and the diameter of the second column rod are both greater than the diameter of the first column rod.
[0013] Specific, the guide assembly includes linear bearings and guide rods, the linear bearings are fixedly installed at four corners of the side walls of the locking plates away from each other, the axes of the linear bearings are arranged in parallel with the axis of the rotating shaft of the turnover workbench, one end of the guide rod is inserted into and installed in the linear bearing, and the other end of the guide rod is fixedly installed in the working box.
[0014] Specific, the driving assembly includes guide wheels, a push rod and a cylinder, the cylinder is fixedly installed at the inside of the lower side of the working box, the push rod end of the cylinder is fixedly installed with the push rod, the top of the push rod is rotatably installed with two guide wheels, the upper guide wheel is located in the first sliding groove, the lower guide wheel is located in the second sliding groove, and the first sliding groove and the second sliding groove are V-shapedly distributed when the push rod is pushed forward.
[0015] Specific, the left end of the upper long hole and the right end of the lower long hole are fixedly installed with arc-shaped plates, and the left and right aligned arc-shaped plates clamp the same support column during use.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] The positioning component arranged according to the through hole position of the thin-walled piece can avoid the pressure marks and deformation caused by the traditional pressing plate to the thin-walled piece at many places;
[0018] The driving assembly can move the two locking plates through the first sliding groove and the second sliding groove, the locking and releasing of the support column are realized, the flexibly adjusted support column can adapt to the shape of the thin-walled piece, uniform support is ensured, the vibration amplitude during machining is effectively reduced, and the cutting precision is improved;
[0019] Different shapes of thin-walled pieces can be matched and clamped, the adaptability is high, and the clamping is fast. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a structural schematic view of the utility model.
[0021] Figure 2 It is the structure schematic section view of inside of the utility model work box.
[0022] Figure 3 It is the structure schematic plan view of upper side locking plate of the utility model.
[0023] Figure 4 It is the structure schematic plan view of lower side locking plate of the utility model.
[0024] In the drawing: 1 overturning workbench, 2 support column, 21 ball head, 22 first column rod, 23 second column rod, 3 positioning assembly, 31 light pole screw, 32 sleeve, 4 guide assembly, 41 linear bearing, 42 guide rod, 5 drive assembly, 51 guide wheel, 52 lever, 53 air cylinder, 6 locking plate, 7 work box, 8 first sliding slot, 9 long hole, 10 arc plate, 11 second sliding slot. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0026] Embodiment content:
[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , provide a kind of tooling fixture for thin-walled part machining, including overturning workbench 1, work box 7 is fixedly installed between the pivot of overturning workbench 1, overturning workbench 1 is the existing component with two pivots, for overturning work box 7.
[0028] Overturning workbench 1 is existing equipment, can adopt manual or electric, manual overturning workbench 1 mainly includes pedestal, bearing seat, worm reducer and hand wheel etc. structure, bearing seat and worm reducer are all stretched out with the pivot for connecting work box 7;Electric overturning workbench 1 mainly includes pedestal, bearing seat and speed reducer motor (servo motor with encoder, worm reducer), bearing seat and speed reducer motor are all stretched out with the pivot for connecting work box 7.
[0029] The upper side of work box 7 is provided with positioning assembly 3 for positioning thin-walled part, positioning assembly 3 is set according to the position and quantity of through hole of thin-walled part, the quantity of positioning assembly 3 can be set to three and be distributed in triangle, benefitting to stably support thin-walled part.
[0030] The top of the working box 7 is uniformly provided with vertical holes, which are preferably distributed in a rectangular array. A support column 2 for supporting the thin-walled part is inserted and installed in each vertical hole. The support column 2 can move axially in the vertical hole to contact the thin-walled part.
[0031] Two locking plates 6 are installed inside the working box 7 through the guide assembly 4. The two locking plates 6 are rectangular plates arranged horizontally and parallel to each other, so that each locking plate 6 can move horizontally along the guide assembly 4.
[0032] A first sliding groove 8 is obliquely arranged at the center of the upper locking plate 6, and a second sliding groove 11 is obliquely arranged at the center of the lower locking plate 6. The first sliding groove 8 and the second sliding groove 11 are symmetrically arranged. A driving assembly 5 is installed at the lower side of the working box 7. The upper end of the driving assembly 5 is slidingly installed in the first sliding groove 8 and the second sliding groove 11. The upper end of the driving assembly 5 can move forward and backward in the first sliding groove 8 and the second sliding groove 11 simultaneously, thereby realizing the action of moving the two locking plates 6 in a synchronous opposite direction (moving closer to each other or moving away from each other).
[0033] The locking plate 6 is uniformly provided with a long hole 9. The long hole 9 is arranged below the vertical hole. The bottom of the support column 2 passes through the long hole 9 arranged in alignment. After the two locking plates 6 move in opposite directions, the long hole 9 arranged in alignment has two working states, i.e., clamping the support column 2 passing through the inside, at which time the support column 2 cannot move, or releasing the clamping of the support column 2, at which time the support column 2 can move.
[0034] Structure of the positioning assembly 3:
[0035] The positioning assembly 3 includes a light rod screw 31 and a sleeve 32. A screw hole is formed in the top of the working box 7. The light rod screw 31 is screw-fitted with the screw hole. The light rod screw 31 is sleeved with the sleeve 32. During use, the thin-walled part is clamped between the nut of the light rod screw 31 and the sleeve 32. The length of the sleeve 32 is customized according to the specific position of the through hole of the thin-walled part. After positioning the thin-walled part, the planar part of the thin-walled part can be kept horizontal, so that the overall posture is beneficial for machining.
[0036] Structure of the support column 2:
[0037] The support column 2 includes a ball head 21, a first column 22, and a second column 23. The first column 22 is inserted into the vertical hole. The top of the first column 22 is fixedly installed with the ball head 21. The bottom of the first column 22 is fixedly installed with the second column 23. The second column 23 passes through the long hole 9 arranged in alignment. The diameter of the ball head 21 and the diameter of the second column 23 are both larger than the diameter of the first column 22, which has a limiting effect, so that the first column 22 will not fall off when moving in the vertical hole. The form of the ball head 21 is more conducive to abutting against the surface of the thin-walled part.
[0038] Structure of the guiding assembly 4:
[0039] The guiding assembly 4 includes linear bearings 41 and guiding rods 42, the linear bearings 41 are fixedly installed at the four corners of the mutually distanced side walls of the locking plates 6, the axes of the linear bearings 41 are arranged in parallel with the axes of the rotating shafts in the turnover workbench 1, the linear bearings 41 are insertedly installed with one ends of the guiding rods 42, the other ends of the guiding rods 42 are fixedly assembled with the working box 7; the movement of the linear bearings 41 along the guiding rods 42 can provide the supporting basis for the left-right translation of the locking plates 6.
[0040] Structure of the driving assembly 5:
[0041] The driving assembly 5 includes guiding wheels 51, a push rod 52 and a pneumatic cylinder 53, the pneumatic cylinder 53 is fixedly installed at the inner lower side of the working box 7, the push rod 52 is fixedly installed at the pushing rod end of the pneumatic cylinder 53, the two guiding wheels 51 are rotatably installed at the top of the push rod 52, the upper guiding wheel 51 is located in the first sliding groove 8, and the lower guiding wheel 51 is located in the second sliding groove 11.
[0042] The pneumatic cylinder 53 can move the two guiding wheels 51 forward and backward through the push rod 52, because the first sliding groove 8 and the second sliding groove 11 are arranged obliquely and symmetrically, when the push rod 52 is pushed forward, the first sliding groove 8 and the second sliding groove 11 are distributed in V shape (the direction of the top view is the reference), at this time, the upper locking plate 6 moves to the right, and the lower locking plate 6 moves to the left; when the push rod 52 is pushed backward, the first sliding groove 8 and the second sliding groove 11 are distributed in inverted V shape (the direction of the top view is the reference), at this time, the upper locking plate 6 moves to the left, and the lower locking plate 6 moves to the right.
[0043] In addition, in order to improve the effect of clamping the supporting column 2:
[0044] The left end of the upper long slot 9 and the right end of the lower long slot 9 are fixedly installed with arc-shaped plates 10, the shape of the arc-shaped plates 10 is matched with the second column 23, the height of the arc-shaped plates 10 is 2㎝~3㎝, during use, the left-right aligned arc-shaped plates 10 clamp the same supporting column 2, the increased contact area can improve the friction force of the abutting surface, and the anti-slip mesh pattern can be provided on the circumferential side of the second column 23 and the inner arc surface of the arc-shaped plate 10, further improving the friction force of the abutting surface.
[0045] Now taking the electric type turnover workbench 1 as an example, the working principle of the embodiment is introduced:
[0046] The turnover workbench 1, the pneumatic cylinder 53 and the controller of the present station are electrically connected, the turnover and locking actions are controlled through the turnover button and the locking button on the controller.
[0047] Positioning installation stage: the turnover workbench 1 keeps the work tank 7 horizontal, and the positioning assembly 3 faces upward, which facilitates the installation and positioning of the thin-walled part through the cooperation of the light pole screw 31 and the sleeve 32, avoids the deformation caused by the use of traditional clamps, and drives the upper locking plate 6 to move leftwards, the lower locking plate 6 to move rightwards, each pair of arc-shaped plates 10 to open away from each other, and the supporting column 2 to fall freely until the ball head 21 abuts against the upper surface of the work tank 7.
[0048] Uniform support stage: the turnover button on the controller is pressed once, the turnover workbench 1 overturns the work tank 7, the positioning assembly 3 drives the thin-walled part to face downward, the supporting column 2 still falls freely in the process, the ball head 21 gradually abuts against the thin-walled part, and the shape of the thin-walled part is met, the locking button is pressed, the driving assembly 5 drives the upper locking plate 6 to move rightwards, the lower locking plate 6 to move leftwards, each pair of arc-shaped plates 10 to abut against the supporting column 2, the position of the supporting column 2 is fixed and cannot move axially.
[0049] Processing stage: the turnover button is pressed once again, the thin-walled part is overturned to face upward, and the supporting column 2 uniformly supports the lower surface of the thin-walled part, which can play a uniform support effect when the tool head is cutting, and reduce the vibration on the thin-walled part.
[0050] When the same kind of thin-walled part is repeatedly processed, the work tank 7 does not need to be overturned again, and only the positioning assembly 3 needs to be disassembled and installed; when different thin-walled parts are processed, the above complete process is repeated to adjust the uniform support, so that the universality of clamping and supporting is high.
[0051] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0052] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A jig for machining a thin-walled workpiece, comprising a turnover table (1), characterized in that: The rotation shaft of the turnover workbench (1) is fixedly provided with a work box (7), the upper side of the work box (7) is provided with a positioning assembly (3) for positioning the thin-walled part, the top of the work box (7) is uniformly provided with a vertical hole, the vertical hole is inserted and connected with a supporting column (2) for supporting the thin-walled part, the inside of the work box (7) is provided with two locking plates (6) through a guide assembly (4), the two locking plates (6) are horizontally and parallelly arranged, the center of the upper locking plate (6) is provided with a first sliding groove (8) arranged obliquely, the center of the lower locking plate (6) is provided with a second sliding groove (11) arranged obliquely, the first sliding groove (8) and the second sliding groove (11) are symmetrically arranged, the inside of the work box (7) is provided with a driving assembly (5) at the lower side, the upper end of the driving assembly (5) is slidingly arranged in the first sliding groove (8) and the second sliding groove (11), the locking plate (6) is uniformly provided with a long hole (9), the bottom of the supporting column (2) passes through the long hole (9) aligned in upper and lower sides.
2. The fixture clamp for processing thin-walled parts according to claim 1, characterized in that: The number of the positioning assembly (3) is three and is distributed in a triangular shape.
3. The fixture clamp for machining thin-walled parts according to claim 1, characterized in that: The positioning assembly (3) comprises a light rod screw (31) and a sleeve (32), the top of the work box (7) is provided with a screw hole, the light rod screw (31) is screw-connected with the screw hole, the light rod screw (31) is sleeved with the sleeve (32), and the thin-walled part is clamped between the sleeve (32) and the nut of the light rod screw (31) during use.
4. The fixture clamp for machining thin-walled parts according to claim 1, characterized in that: The supporting column (2) comprises a ball head (21), a first column rod (22) and a second column rod (23), the first column rod (22) is inserted into the vertical hole, the top of the first column rod (22) is fixedly provided with the ball head (21), the bottom of the first column rod (22) is fixedly provided with the second column rod (23), the second column rod (23) passes through the long hole (9) aligned in upper and lower sides, and the diameters of the ball head (21) and the second column rod (23) are greater than the diameter of the first column rod (22).
5. The fixture clamp for machining thin-walled parts according to claim 1, characterized in that: The guide assembly (4) comprises a linear bearing (41) and a guide rod (42), the linear bearing (41) is fixedly arranged at the four corners of the side wall of the locking plate (6) away from each other, the axis of the linear bearing (41) is parallelly arranged with the axis of the rotation shaft in the turnover workbench (1), one end of the guide rod (42) is inserted and connected with the linear bearing (41), and the other end of the guide rod (42) is fixedly connected with the work box (7).
6. The fixture clamp for machining thin-walled parts according to claim 1, characterized in that: The driving assembly (5) comprises a guide wheel (51), a pushing rod (52) and a pneumatic cylinder (53), the pneumatic cylinder (53) is fixedly arranged at the lower side of the inside of the work box (7), the pushing rod (52) is fixedly arranged at the pushing rod end of the pneumatic cylinder (53), the top of the pushing rod (52) is rotatably provided with two guide wheels (51), the upper guide wheel (51) is arranged in the first sliding groove (8), the lower guide wheel (51) is arranged in the second sliding groove (11), and the first sliding groove (8) and the second sliding groove (11) are distributed in a V shape when the pushing rod (52) is pushed forward.
7. The fixture clamp for machining thin-walled parts according to claim 1, characterized in that: The left end of the upper long hole (9) and the right end of the lower long hole (9) are fixedly provided with arc-shaped plates (10), and the left and right aligned arc-shaped plates (10) clamp a same support column (2) during use.