Fixture assembly for flying handle machining

Abstract

The invention relates to the technical field of handle machining, in particular to a clamp assembly for flying handle machining, which comprises a plurality of bases and a loading part, the first clamping mechanism is used for fixing the workpiece in the loading part; the second clamping mechanism is used for fixing the loading part in the base; the loading part is provided with a plurality of first positioning holes for positioning the relative positions of the handle workpiece and the loading part; the first clamping mechanism is provided with a positioning part A; the base is provided with a positioning part B; the positioning part A and the positioning part B are coupled, so that the relative angle and position between the loading part and the base are determined; the base has a mounting surface through which the loading part is mounted. A handle workpiece is firstly fixed to the loading part through the first clamping mechanism, and the clamping frequency during handle workpiece machining is greatly reduced; and meanwhile, the position of the handle workpiece is determined through the relative position of the loading part and the base, the structural limitation of the handle workpiece can be avoided, and a larger design space is provided for a positioning structure and a clamping mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of handle processing, in particular to a fixture assembly used for processing a flight handle. Background Art

[0002] The flight handle, which is the handle part of the aircraft's operating rod, needs to be adapted to the human hand's grip, so a curved structure design is adopted. The handle is made of aluminum alloy and is formed by a casting process. However, due to the limitations of the casting process characteristics, it is difficult to accurately achieve the precision standard. Usually, a handle shell needs to be assembled from multiple parts. Therefore, the mating surfaces between the parts must be further milled to meet the mating accuracy requirements. However, it should be noted that the multiple mating surfaces of a single part often have different orientations. Conventional processing equipment cannot perform processing operations on multiple mating surfaces simultaneously when the part is in a single fixed position. This means that in the process of processing different mating surfaces, the part angle must be adjusted and the clamping process must be re-executed.

[0003] For such irregular parts, the clamping process requires a high level of benchwork skills. In addition, each part needs to undergo multiple clamping, which is time-consuming and labor-intensive. As the frequency of clamping increases, the risk of operational errors increases sharply. Once an error occurs, it is very easy to cause the processing accuracy to fail to meet the standards, ultimately resulting in the scrapping of the parts.

[0004] In summary, the processing flow of the flight handle should focus on minimizing the number of clamping times and reducing the difficulty of clamping operations. Summary of the invention

[0005] In order to solve the above-mentioned prior art problems, the present invention provides a fixture assembly for processing a flight handle, comprising a plurality of bases, a loading part;

[0006] The loading part is provided with a first clamping mechanism and a second clamping mechanism;

[0007] The first clamping mechanism is used to fix the workpiece in the loading portion;

[0008] The second clamping mechanism is used to fix the loading part in the base;

[0009] Wherein, the loading portion has a plurality of first positioning holes, and the first positioning holes are coaxial with the positioning holes of the workpiece itself, so as to locate the relative position of the handle workpiece and the loading portion;

[0010] Wherein, the first clamping mechanism has a positioning portion A; the base has a positioning portion B; the positioning portion A and the positioning portion B are coupled to determine the relative angle and position between the loading portion and the base;

[0011] The base has a mounting surface, through which the loading part is mounted, and the mounting surface forms an angle a with a horizontal plane. The angles a formed between the mounting surfaces of different bases and the horizontal plane are different.

[0012] Furthermore, the loading part is a double-layer structure, the upper layer is a loading platform, and the lower layer is a fixed platform, and the loading platform and the fixed platform are slidably connected along the axial direction of the loading part;

[0013] The second clamping mechanism comprises: a transmission screw, the transmission screw is rotatably connected to the fixed platform;

[0014] A second clamping block, threadedly connected to the transmission screw, and sliding along a second clamping direction;

[0015] The second clamping direction is a direction parallel to the axis of the transmission screw;

[0016] Wherein, the transmission screw is provided with two sections of threads with different rotation directions; the second clamping blocks are provided with two, which are respectively located in the two sections of threads.

[0017] Further, the positioning portion A is provided at one end of the second clamping block for clamping the mounting surface;

[0018] The positioning parts B are arranged in multiple groups at the edge of the mounting surface, and each group of positioning parts B has two; the positioning parts A and / or the positioning parts B are coupled through a V-shaped structure, and the apex of the coupled V-shaped structure is parallel to the apex of the transmission screw.

[0019] Further, the first positioning hole is located in the loading platform;

[0020] The first clamping mechanism comprises: a first clamping block, located above the loading platform; a connecting shaft, one end of which is fixedly connected to the first clamping block, and the other end of which is fixedly connected to the fixed platform, and the loading platform is slidably connected to the connecting shaft;

[0021] A lifting component is provided between the loading platform and the fixed platform to drive the loading platform to move along a first clamping direction, where the first clamping direction is the direction of the loading platform toward the first clamping block.

[0022] Further, a slide groove A is provided at the bottom of the loading platform, and a slide groove B is provided at the fixed platform. The slide groove A and the slide groove B are combined to form a sliding channel, and the length direction of the sliding channel is parallel to the second clamping direction;

[0023] The second clamping block pushes the lifting component to slide along the sliding channel;

[0024] When the loading platform and the fixed platform are in contact with each other, the minimum height of the sliding channel is L1, and the minimum height of the lifting component is L2; ​​L1≤L2;

[0025] A first inclined surface is provided at the front end of the slide groove A, and the lifting component abuts against the first inclined surface. The first inclined surface converts a portion of the force parallel to the second clamping direction into a force parallel to the first clamping direction.

[0026] Further, the slide groove A includes an inclined path and a parallel path along the length direction of the sliding channel, and the inclined path is a path provided with a first inclined surface;

[0027] The inclined path and the end of the slide groove A are parallel paths; the surface of the parallel path is parallel to the length direction of the sliding channel;

[0028] The projected length of the inclined path toward the top surface of the loading platform is L3; the projected length of the parallel path toward the top surface of the loading platform is L4;

[0029] L3 <L4。

[0030] Furthermore, the lifting component is connected to the second clamping block, and the second clamping block pushes the lifting component to move along the sliding channel.

[0031] Furthermore, the lifting component is provided with a connecting threaded hole;

[0032] The second clamping block is provided with a connecting through hole, and a connecting bolt is provided in the connecting through hole;

[0033] The lifting component retreats following the second clamping block only when the connecting bolt is connected to the connecting threaded hole;

[0034] The retreat is a movement in the opposite direction of the second clamping direction.

[0035] Furthermore, the lifting component is integrally connected to the second clamping block, and when the lifting component leaves the inclined path, the second clamping block continues to move at least a distance of L5 before the second clamping block can clamp the mounting surface;

[0036] The second clamping block has a feedback protrusion therein;

[0037] The fixed platform is provided with a backstop swing arm;

[0038] When the second clamping block moves toward the second clamping direction, the feedback protrusion and the anti-backward swing arm, the anti-backward swing arm avoids the feedback protrusion;

[0039] When the second clamping block moves a distance L6 in the opposite direction of the second clamping direction, the back-stopping swing arm blocks the feedback protrusion; L6 <L5。

[0040] Furthermore, the mounting surface is circular.

[0041] The beneficial effect of the present invention is that a handle workpiece with a complex structure is first fixed to the loading part by a first clamping mechanism, at which time the loading part and the handle workpiece are relatively fixed, and then the loading part is fixed in the base by a second clamping mechanism. In this process, there is no need to release the fixation of the workpiece by the first clamping mechanism, which greatly reduces the number of clamping times during the processing of the handle workpiece; at the same time, the position of the handle workpiece is determined by the relative position of the loading part and the base, which can avoid the structural limitations of the handle workpiece and provide a larger design space for the positioning structure and the clamping mechanism, so that the handle workpiece can be switched more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the three-dimensional structure of the clamp assembly provided by the present invention;

[0043] Figure 2 This is a front view structural schematic diagram of the clamp assembly provided by the present invention;

[0044] Figure 3 A schematic side view of the structure of the clamp assembly provided by the present invention;

[0045] Figure 4 It is a schematic diagram of the side view structure of the clamp assembly of different bases;

[0046] Figure 5 A schematic cross-sectional structure diagram of the clamp assembly provided by the present invention;

[0047] Figure 6 A schematic cross-sectional structure diagram of a lifting component provided by the present invention;

[0048] Figure 7 A schematic cross-sectional structure diagram of another type of lifting component provided by the present invention;

[0049] Figure 8 A schematic diagram of the three-dimensional structure of the loading part provided by the present invention;

[0050] Fig. 9 It is a schematic exploded view of the three-dimensional structure of the loading part provided by the present invention;

[0051] Fig.10 This is a cross-sectional view of the loading platform provided by the present invention.

[0052] Reference numerals: 1, base; 11, mounting surface; 111, positioning portion B;

[0053] 2. Loading part; 21. Loading platform; 211. Slideway A; 2111. First inclined surface; 212. Positioning hole; 22. Fixed platform; 221. Slideway B;

[0054] 3. First clamping mechanism; 31. First clamping block; 32. Connecting shaft;

[0055] 4. Second clamping mechanism; 41. Transmission screw; 42. Second clamping block; 421. Positioning portion A;

[0056] 5. Lifting component; 51. Connecting threaded hole; 52. Connecting bolt;

[0057] 61. Feedback protrusion; 62. Back-stop swing arm;

[0058] 7. Handle workpiece; 71. Processing surface. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Example 1

[0061] Reference Figure 1-Figure 10 .

[0062] A fixture for processing a flight handle, comprising a plurality of bases 1 and a loading portion 2;

[0063] The loading part 2 is provided with a first clamping mechanism 3 and a second clamping mechanism 4;

[0064] The first clamping mechanism 3 is used to fix the workpiece in the loading portion 2;

[0065] The second clamping mechanism 4 is used to fix the loading part 2 in the base 1;

[0066] Wherein, the first clamping mechanism 3 has a plurality of first positioning holes 212, and the first positioning holes 212 are coaxial with the positioning holes 212 of the handle workpiece 62 and the stop arm 7, so as to locate the relative position of the handle workpiece 62 and the stop arm 7 and the loading part 2;

[0067] The loading part 2 further has a positioning part A421; the base 1 has a positioning part B111; the positioning part A421 and the positioning part B111 are coupled to determine the relative angle and position between the loading part 2 and the base 1;

[0068] Among them, the loading part 2 cooperates with different bases 1, and the base 1 has a mounting surface 11, and the loading part 2 is installed through the mounting surface 11. The mounting surface 11 forms an angle a with the horizontal plane, and the angle a formed by the mounting surface 11 of different bases 1 and the horizontal plane is different.

[0069] In the prior art, if different mating surfaces of a workpiece 7 are to be processed, the workpiece 7 needs to be installed in a base 1 at different angles. The base 1 has a mounting surface 11. The mounting surface 11 forms an angle a with the horizontal plane. The angle a includes 0°, that is, the mounting surface is parallel to the horizontal plane. The angle a formed by the mounting surfaces 11 of different bases 1 is different. When the workpiece 7 is installed on the mounting surfaces 11 at different angles, the angle between the workpiece 7 and the cutting tool is different, so that the cutting tool can process different processing surfaces 71 of the workpiece 7. However, the structure of the workpiece 7 is complex, and it is not enough to process all the processing surfaces 71 of the workpiece 7 by changing the pitch angle of the mounting surface 11 alone. Therefore, the workpiece 7 needs to be rotated in the mounting surface 11. Each time a surface of the workpiece 7 is processed, the workpiece 7 is in a fixed state, and the fixture needs to loosen the workpiece 7 and then adjust the position of the workpiece 7, and finally re-clamp it. That is to say, each time a surface of the workpiece 7 is processed, the workpiece 7 needs to be re-clamped (the left and right workpieces 7 processed in this application both have 4 processing surfaces 71 that need to be adjusted as described above). The workpiece 7 is a thin-walled aluminum alloy, and its structural strength is relatively weak. It is easy to deform when subjected to force. Therefore, the work of clamping the workpiece 7 itself requires certain technical requirements, and mistakes are inevitable in multiple clamping.

[0070] In this regard, the present embodiment provides a clamp having a loading portion 2, in which the workpiece 7 is first fixed in the loading portion 2, and then the loading portion 2 with the workpiece 7 installed is fixed to the base 1. For the workpiece 7, it is necessary to consider the overall grip of the product and the installation position of the buttons and other requirements, so the shape of the workpiece 7 cannot be changed, and the workpiece 7 is a thin-walled aluminum alloy part with weak structural strength. Therefore, each time the workpiece 7 is clamped, special attention must be paid to the force applied to the workpiece 7 to avoid deformation of the workpiece 7 due to excessive clamping force, or displacement of the workpiece 7 due to vibration during processing due to insufficient clamping force.

[0071] The workpiece 7 is fixed on the loading part 2 by the first clamping mechanism 3, and then the loading part 2 is connected to different bases 1 (or connected to the same base 1 in different directions) by the second clamping mechanism 4. As a part of the fixture, the loading part 2 can easily have a higher structural strength than the workpiece 7, so the loading part 2 can withstand a greater clamping force without deformation, reducing the installation difficulty of changing the workpiece 7 position, and the workpiece 7 only needs to be clamped once during the processing of the workpiece 7.

[0072] The workpiece 7 itself has a positioning hole, which is specifically a connection hole when the left half of the handle and the right half of the shell are connected (at least two connection holes are taken), and the positioning can be achieved by the positioning pin passing through the first positioning hole 212 and the connection hole of the loading part 2 at the same time. As in the prior art, the positioning method between the workpiece 7 and the base 1 is the same, but in this application, the workpiece 7 only needs to be positioned once, eliminating the positioning operation when the workpiece 7 changes positions.

[0073] The loading part 2 is provided with a positioning part A421, and the base 1 is provided with a positioning part B111, and the positioning part A421 and the positioning part are used to realize rapid positioning between the loading part 2 and the base 1, that is, the position where the workpiece 7 should be located when processing different wall surfaces. The positioning part A421 and the positioning part B111 are completely separated from the workpiece 7 and do not need to be restricted by the thin-wall structure of the workpiece 7 and the gripping feeling requirements, so the positioning part A421 and the positioning part B111 are provided in the loading part 2 and the base 1 to obtain a larger design space.

[0074] Example 2

[0075] Reference Figure 1-Figure 9 .

[0076] The loading part 2 is a double-layer structure, the upper layer is a loading platform 21, and the lower layer is a fixed platform 22. The loading platform 21 and the fixed platform 22 are slidably connected along the axial direction of the loading part 2;

[0077] The second clamping mechanism 4 includes: a transmission screw 41, the transmission screw 41 is rotatably connected to the fixed platform 22; a second clamping block 42, threadedly connected to the transmission screw 41, and sliding along the second clamping direction;

[0078] The second clamping direction is a direction parallel to the axis of the transmission screw 41;

[0079] The transmission screw 41 is provided with two sections of threads with different rotation directions; the second clamping blocks 42 have two sections, which are respectively located in the two sections of threads.

[0080] The loading part 2 is configured as a double-layer structure, wherein the workpiece 7 is mounted on a loading platform 21 , a lower fixed platform 22 is fixedly connected to the base 1 , the loading platform 21 and the fixed platform 22 are slidably connected along the axial direction of the loading part 2 , and the loading platform 21 can gradually move away from the fixed platform 22 .

[0081] The fixed platform 22 is connected to the base 1 through the second clamping mechanism 4, and the second clamping mechanism 4 specifically includes: a transmission screw 41, which is rotatably set on the fixed platform 22, and a second clamping block 42, which is threadedly connected to the second clamping block 42 and slides along the second clamping direction; the second clamping block 42 is slidably connected to the fixed platform 22 along the second clamping direction to prevent the transmission screw 41 from driving the second clamping block 42 to rotate.

[0082] There are at least two second clamping blocks 42, and the transmission screw 41 is divided into two sections along the length direction. The two sections have threads in different directions. The two second clamping blocks 42 are respectively connected to the two sections of threads. When the transmission screw 41 is rotated, the two second clamping blocks 42 move toward the middle at the same time, that is, clamping the installation surface 11 located between the two second clamping blocks 42.

[0083] Furthermore, the positioning portion A421 is arranged at one end of the second clamping block 42 that clamps the mounting surface 11; the positioning portion B111 is disposed in multiple groups at the edge of the mounting surface 11, and each group of positioning portions B111 has two; the positioning portion A421 and / or the positioning portion B111 are coupled through a V-shaped structure, and the vertex of the coupled V-shaped structure is parallel to the vertex of the transmission screw 41.

[0084] The V-shaped structure is specifically a V-shaped groove, and either the positioning part A421 or the positioning part B111 can be set as a V-shaped groove. For example, the positioning part B111 is set as a V-shaped groove, and the positioning part A421 can be set as a symmetrical structure such as a V-shaped bump, a sphere, a cylinder, etc. The symmetry axis of the positioning part A421 is parallel to the second clamping direction. When the line connecting the vertices of the V-shaped groove is not parallel to the second clamping direction, only one side wall of the symmetry axis of the positioning part A421 abuts against the wall of the V-shaped groove. At this time, the force is unbalanced, and the loading part 2 will rotate until the walls on both sides of the symmetry axis of the positioning part A421 abut against the walls on both sides of the V-shaped groove at the same time to achieve force balance. At this time, the second clamping direction is parallel to the line connecting the vertices of the V-shaped grooves in a group of positioning parts B111, thereby limiting the installation angle of the loading part 2 and the workpiece 7.

[0085] That is to say, in this embodiment, the process of clamping the base 1 by the second clamping mechanism 4 not only fixes the connection between the base 1 and the fixed platform 22, but also positions the installation angle of the workpiece 7. The operator only needs to match the positioning part A421 with the positioning part B111, and then rotate the transmission screw 41 to make the positioning part A421 and the positioning part B111 completely aligned, eliminating a series of positioning work such as aligning the positioning hole 212 and inserting the positioning pin. The operator only needs to roughly align the positioning part A421 and the positioning part B111. The larger the opening of the V-groove, the greater the allowable alignment error, and the easier the positioning.

[0086] Example 3

[0087] Reference Figure 5-Figure 9 .

[0088] The first positioning hole 212 is located in the loading platform 21;

[0089] The first clamping mechanism 3 includes: a first clamping block 31, located above the loading platform 21; a connecting shaft 32, one end of which is fixedly connected to the first clamping block 31, and the other end of which is fixedly connected to the fixed platform 22, and the loading platform 21 is slidably connected to the connecting shaft 32;

[0090] A lifting component 5 is provided between the loading platform 21 and the fixing platform 22 , and is used to lift the loading platform 21 to clamp the workpiece 7 .

[0091] The workpiece 7 determines the angle with the loading platform 21 through the first positioning hole 212, and the handle is fixed in the loading platform 21 through the first clamping mechanism 3. At this time, the workpiece 7 and the loading part 2 are integrated into one, and the angle between the workpiece 7 and the base 1 can be determined by determining the relative angle between the loading part 2 and the base 1.

[0092] The first clamping mechanism 3 specifically includes: a first clamping block 31 and a connecting shaft 32, wherein one end of the connecting shaft 32 is fixedly connected to the fixed platform 22, and the other end is fixedly connected to the second clamping block 42, the connecting shaft 32 passes through the loading platform 21, and the loading platform 21 is slidably connected to the connecting shaft 32, the workpiece 7 is located above the loading platform 21 and below the first clamping block 31, and the loading platform 21 is lifted so that the loading platform 21 and the second clamping block 42 clamp the workpiece 7.

[0093] More specifically, two connecting shafts 32 are provided, and the ends of the connecting shafts 32 are connected to the mounting frame. The first clamping block 31 is provided in the mounting frame so as to better control the position of the first clamping block 31 and balance the force on the first clamping block 31. Balancing the force on the first clamping block 31 specifically means that the first clamping block 31 needs to be located directly above the workpiece 7, and the connecting shaft 32 cannot pass through the workpiece 7, so the first clamping block 31 and the connecting shaft 32 will be L-shaped, and only one side of the first clamping block 31 is connected to the connecting shaft 32, and the stress will be concentrated at the connection position between the first clamping block 31 and the connecting shaft 32 (i.e., the corner position of the L shape), which can easily cause the first clamping block 31 to rotate around the connection position and cause tilting, so two connecting shafts 32 need to be provided to fix the two sides of the first clamping block 31 to prevent the first clamping block 31 from swinging.

[0094] The loading platform 21 is lifted by the lifting component 5. In this embodiment, a simple and feasible lifting component 5 is provided. An abutment position can be set on the back of the loading platform 21. The fixed platform 22 is provided with a threaded hole. The abutment position, the threaded hole, and the first clamping block 31 are located in the same straight line. Bolts are set in the threaded hole. The bolts push the abutment position to lift the loading platform 21. A bearing can be set at the abutment position to reduce the friction force in the rotation direction on the loading platform 21. The mounting surface 11 of the corresponding base 1 should be hollowed out to avoid the bolts.

[0095] Example 4

[0096] Reference Figure 5-Figure 9 .

[0097] The bottom of the loading platform 21 is provided with a slide groove A211, and the fixed platform 22 is provided with a slide groove B221. The slide groove A211 and the slide groove B221 are combined to form a sliding channel, and the length direction of the sliding channel is parallel to the second clamping direction;

[0098] The second clamping block 42 pushes the lifting component 5 to slide along the sliding channel;

[0099] When the loading platform 21 and the fixing platform 22 are in contact with each other, the minimum height of the sliding channel is L1, and the minimum height of the lifting component 5 is L2; ​​L1≤L2;

[0100] A first inclined surface 2111 is provided at the front end of the slide groove A211, and the lifting component 5 abuts against the first inclined surface 2111. The first inclined surface 2111 converts part of the force parallel to the second clamping direction into a force parallel to the first clamping direction.

[0101] In the third embodiment, a simple lifting component 5 structure is provided. The lifting component 5 requires the operator to perform a clamping operation separately. In the prior art, only the workpiece 7 needs to be clamped. The number of times the workpiece 7 is clamped is equal to the number of times the loading part 2 is clamped in the present application. However, the use of the lifting structure in the above embodiment adds a step of clamping the workpiece 7, which complicates the clamping process and violates the purpose of simplifying the task of clamping the workpiece 7 in the present application. And like the prior art, the clamping force needs to be manually controlled. Although the purpose of reducing the number of times the workpiece 7 is clamped can be achieved, the clamping force still cannot be well controlled during clamping, that is, the clamping difficulty has not been reduced.

[0102] To this end, this embodiment provides another lifting form and structure of the lifting component 5.

[0103] The sliding channel is composed of a slide groove A211 and a slide groove B221, and the slide groove A211 is formed at the bottom of the loading platform 21, that is, the height of the sliding channel will be affected by the lifting of the loading platform 21, and the greater the lifting distance of the loading platform 21, the higher the height of the sliding channel. The length direction of the sliding channel is parallel to the second clamping direction, and the slide groove A211 is provided with a first inclined surface 2111. When the lifting component 5 goes deep into the sliding channel along the second clamping direction, since the minimum height L1 of the sliding channel is lower than the minimum height L2 of the lifting component 5, the lifting component 5 will lift the loading platform 21 through the first inclined surface 2111, thereby increasing the height of the sliding channel until the lifting component 5 can squeeze into the sliding channel.

[0104] In this embodiment, the movement mode of the lifting component 5 is changed so that the lifting component 5 and the second clamping block 42 can be linked, and the steps of fixing the loading part 2 and fixing the workpiece 7 are integrated. When the rotating transmission screw 41 drives the second clamping block 42 to move, it also drives the lifting component 5 to move. Therefore, the operator does not need to clamp the workpiece 7 separately.

[0105] Example 5

[0106] Reference Fig.10 .

[0107] The slide groove A211 includes an inclined path and a parallel path along the length direction of the sliding channel, and the inclined path is a path provided with a first inclined surface 2111;

[0108] The inclined path and the end of the slide groove A211 are parallel paths; the surface of the parallel path is parallel to the length direction of the sliding channel;

[0109] The projection length of the inclined path toward the top surface of the loading platform 21 is L3; the projection length of the parallel path toward the top surface of the loading platform 21 is L4;

[0110] L3 <L4。

[0111] The projected length refers to the length of each path measured along the second clamping direction, that is, the distance that the lifting component 5 can move.

[0112] In Example 4, the steps of clamping the workpiece 7 and clamping the base 1 are combined through the linkage design of the second clamping block 42 and the lifting component 5, thereby eliminating the step of clamping the workpiece 7 separately. However, if the lifting component 5 is always in abutment with the first inclined surface 2111, when the second clamping block 42 completely clamps the base 1, the second clamping block 42 cannot continue to move, and the lifting component 5 will not be able to continue to bring the loading part 2 close to the first clamping block 31, which will cause the workpiece 7 to loosen; or the first clamping block 31 is pressed against the workpiece 7 in advance, and the second clamping block 42 is not pressed, then the operator can continue to rotate the transmission screw 41, at this time, both the first clamping block 31 and the second clamping block 42 will move, and continuing to increase the pressure between the first clamping block 31 and the workpiece 7 is likely to cause the workpiece 7 to deform, requiring the second clamping block 42 and the first clamping block 31 to complete the clamping action at the same time. Therefore, the structural design in Example 4 requires good control of the proportional relationship between the lifting distance and the moving distance of the second clamping block 42, and has high requirements for production and processing. At the same time, after the second clamping mechanism 4 releases the clamping state, the first clamping mechanism 3 will also automatically release the clamping state. At this time, the workpiece 7 is in a non-fixed state and it is easy to cause displacement when changing the work station, which requires repositioning.

[0113] In this regard, the present embodiment further improves the slide groove A211. The top surface of the slide groove A211 (that is, the wall surface that abuts the lifting component 5) has two sections of paths, an inclined path and a parallel path. The lifting component 5 continuously abuts the first inclined surface 2111 to continuously lift the loading platform 21 until the top of the lifting component 5 no longer abuts the first inclined surface 2111 and enters the parallel path. The wall surface of the parallel path is parallel to the second clamping direction. Without the force component effect of the first inclined surface 2111, the lifting component 5 can continue to move, but the loading platform 21 will not continue to be lifted, so that the pressure on the workpiece 7 will not continue to increase. The pressure on the workpiece 7 at this time is set to a clamping force that can fix the workpiece 7. That is to say, before the second clamping block 42 clamps the base 1, the lifting component 5 has entered the parallel path. At this time, the first clamping block 31 has clamped the workpiece 7. If the transmission screw 41 continues to rotate, the second clamping block 42 moves to the clamping base 1. At this time, the lifting component 5 will continue to move but will not push the loading platform 21 to continue to lift. Therefore, during the entire clamping process, the operator only needs to continuously rotate the transmission screw 41. The structural strength of the second clamping block 42 and the base 1 is much higher than that of the workpiece 7. Therefore, as long as the over-tightening is not very serious, it will basically not cause damage to the parts. At the same time, the lifting component 5 only plays a lifting role in the inclined path. When leaving the inclined path, the first clamping block 31 completes the clamping of the workpiece 7. After the lifting component 5 enters the horizontal path, the loading platform 21 is no longer linked with the second clamping block 42. The parallel path provides redundancy for the movement of the second clamping block 42 to avoid excessive force on the first clamping block 31 and the loading platform 21 to damage the workpiece 7.

[0114] Furthermore, the lifting component 5 can be directly configured as an integrated structure with the second clamping block 42, which has a simple structure and is convenient for production and processing.

[0115] Example 6

[0116] Reference Figure 7 .

[0117] The lifting component 5 is provided with a connecting threaded hole 51; the second clamping block 42 is provided with a connecting through hole, and a connecting bolt 52 is provided in the connecting through hole; the lifting component 5 follows the second clamping block 42 to retreat only when the connecting bolt 52 is connected to the connecting threaded hole 51; the retreat is: an action in the opposite direction of the second clamping direction.

[0118] If the lifting component 5 is directly fixedly connected in the second clamping block 42, the purpose of the second clamping block 42 pushing the lifting component 5 can indeed be achieved, and the lifting component 5 can be driven to leave the sliding channel at the same time. However, the workpiece 7 has multiple processing surfaces 71, and the connection between the loading part 2 and the base 1 needs to be released multiple times. When releasing the second clamping mechanism 4, we do not want to release the first clamping mechanism 3. After releasing the first clamping mechanism 3, the workpiece 7 is in a non-fixed state, the workpiece 7 is prone to displacement, and the workpiece 7 needs to be repositioned.

[0119] In this regard, the present embodiment provides a structure that allows the lifting component 5 to be connected to the second clamping block 42 only when the loading platform 21 needs to be lifted, that is, the lifting component 5 and the second clamping block 42 are set as a split structure, the lifting component 5 is set in the sliding channel, and the second clamping block 42 is provided with a protrusion, which abuts and pushes the lifting component 5 into the sliding channel. When the second clamping block 42 is away, the lifting component 5 will continue to remain in the sliding channel because the protrusion is not connected to the lifting component 5. However, if it is only a simple split structure, the first clamping mechanism 3 cannot be released to remove the workpiece 7, so it is necessary to consider how to remove the lifting component 5. In this regard, in the present embodiment, a threaded connection hole is provided in the lifting component 5, and a connecting hole is provided in the second clamping block 42. After all the processing surfaces 71 of the workpiece 7 are processed, it is only necessary to use a connecting bolt 52 to pass through the connecting hole to connect the connecting threaded hole 51, and the tension when removing the lifting component 5 is transmitted by the connecting bolt 52, so that the lifting component 5 is removed, the loading platform 21 is moved away from the first clamping block 31, and the first clamping mechanism 3 is released.

[0120] Example 7

[0121] Reference Figure 6 .

[0122] The lifting component 5 is integrally connected with the second clamping block. When the lifting component 5 leaves the inclined path, the second clamping block 42 continues to move at least a distance of L5 so that the second clamping block 42 can clamp the mounting surface 11.

[0123] The second clamping block 42 has a feedback protrusion 61;

[0124] The fixed platform 22 is provided with a back-stop swing arm 62;

[0125] When the second clamping block 42 moves toward the second clamping direction, the anti-backward swing arm 62 avoids the feedback protrusion 61;

[0126] When the second clamping block 42 moves a distance L5 in the opposite direction to the second clamping direction, the feedback protrusion 61 and the anti-backward swing arm 62 , the anti-backward swing arm 62 blocks the feedback protrusion 61 .

[0127] The lifting component 5 is integrally connected with the second clamping block 42, which is more convenient for production and can reduce wear between parts, thereby reducing errors and maintenance costs. However, this will always cause the lifting component 5 and the second clamping block 42 to move synchronously. When the second clamping block 42 releases the clamping of the mounting surface 11, the first clamping block 31 will also release the clamping of the workpiece 7. Then, when moving the loading part 2, it is necessary to pay special attention to the deviation of the workpiece 7. Therefore, the operator obviously hopes not to release the first clamping block 31 during the process of releasing the second clamping block 42, and finally release the first clamping block 31 and the second clamping block 42 at the same time after the workpiece 7 is completely processed.

[0128] In order to prevent the second clamping block 42 from immediately contacting and clamping the mounting surface 11 after the lifting component 5 completes the tilting path movement and lifts the loading platform 21 to the maximum height, it is specially stipulated that the second clamping block 42 needs to move a predetermined distance L5 in the horizontal direction. This design is intended to achieve the goal of releasing the second clamping block 42 alone without affecting the locking state of the first clamping block 31 by limiting the range of motion of the operator to release the second clamping block 42, that is, ensuring that the release amplitude does not exceed L5. However, in actual application, due to reliance on manual operation, there is a risk of exceeding the L5 limit, which may lead to the inadvertent release of the lock of the first clamping block 31. A further problem is that the phenomenon of over-rotating the transmission screw 41 is not easy to detect, which may cause the operator to mistakenly believe that the workpiece 7 is still stable when changing the working position, thereby reducing vigilance, and ultimately causing the workpiece 7 to have an imperceptible positional displacement.

[0129] Furthermore, in this embodiment, a feedback protrusion 61 is provided in the second clamping block 42, and a backstop swing arm 62 is provided in the fixed platform 22. The feedback protrusion 61 and the second clamping block 42 move synchronously. The backstop swing arm 62 only allows the feedback protrusion 61 to pass through the backstop swing arm 62 along the second clamping direction. When the backstop swing arm 62 moves a distance L6 in the direction opposite to the second clamping direction of the second clamping block 42, it blocks the feedback protrusion 61, that is, the second clamping block 42 cannot continue to retreat. L6 < L5. Since the lifting member 5 continues to move a distance of L5 after the lifting platform reaches the highest position, the lifting member 5 must move a distance greater than L5 in the reverse direction for the workpiece 7 to be released. However, the presence of the backstop swing arm 62 and the feedback protrusion 61 allows the lifting member 5 to only retreat a length of L6. Therefore, the workpiece 7 will surely not be released.

[0130] The backstop swing arm 62 can be specifically set to a structure similar to that of a pawl. One end of the backstop swing arm 62 can be hinged in the fixed platform 22, or it can be set as a spring piece directly fixed in the fixed platform 22. When the feedback convex block moves along the second clamping direction, it lifts the backstop swing arm 62 through an inclined surface, and no inclined surface is provided on the wall surface where the feedback protrusion 61 and the backstop swing arm 62 are in contact on the other side. When it is necessary to release the fixed state of the workpiece 7, the backstop swing arm 62 must be manually lifted, and the second clamping block 42 can retreat a distance greater than L6, thereby driving the lifting member 5 back to the inclined path and lowering the loading platform 21.

[0131] The contact between the feedback protrusion 61 and the backstop swing arm 62 reminds the operator that when the machine retreats the second clamping block 42 at this time, the first clamping mechanism 3 will release the fixation of the workpiece 7. When the operator determines to release the fixation of the workpiece 7, the operator manually拨开 the backstop swing arm 62. This avoids the second clamping block 42 retreating excessively when the operator is not paying attention.

[0132] Embodiment 8

[0133] Refer to Figure 1-Figure 3 。

[0134] The mounting surface 11 is circular, and the shapes of the positioning parts B111 at different positions can be exactly the same without separately setting a machining plane.

[0135] It should be noted that the term "拨开" in the original text seems to be a misspelling. It might be "拨过" or some other correct expression. If this is an important error, it may need to be further confirmed with the original source.In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or a specific area.

[0136] In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0137] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0138] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0139] In the description of the embodiments of the present invention, it is to be understood that "-" and "~" represent the range between two values, and the range includes the endpoints. For example: "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0140] In the description of the embodiments of the present invention, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0141] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture assembly for processing a flight handle, characterized in that: It includes a plurality of bases and a loading part; The loading part is provided with a first clamping mechanism and a second clamping mechanism; The first clamping mechanism is used to fix the workpiece in the loading portion; The second clamping mechanism is used to fix the loading part in the base; Wherein, the loading portion has a plurality of first positioning holes, and the first positioning holes are coaxial with the positioning holes of the workpiece itself, so as to locate the relative position of the handle workpiece and the loading portion; Wherein, the first clamping mechanism has a positioning portion A; the base has a positioning portion B; the positioning portion A and the positioning portion B are coupled to determine the relative angle and position between the loading portion and the base; The base has a mounting surface, through which the loading part is mounted, and the mounting surface forms an angle a with a horizontal plane. The angles a formed between the mounting surfaces of different bases and the horizontal plane are different.

2. A fixture assembly for processing a flight handle according to claim 1, characterized in that: The loading part is a double-layer structure, the upper layer is a loading platform, and the lower layer is a fixed platform, and the loading platform and the fixed platform are slidably connected along the axial direction of the loading part; The second clamping mechanism comprises: a transmission screw, the transmission screw is rotatably connected to the fixed platform; A second clamping block, threadedly connected to the transmission screw, and sliding along a second clamping direction; The second clamping direction is a direction parallel to the axis of the transmission screw; Wherein, the transmission screw is provided with two sections of threads with different rotation directions; the second clamping blocks are provided with two, which are respectively located in the two sections of threads.

3. A fixture assembly for processing a flight handle according to claim 2, characterized in that: The positioning portion A is arranged in the second clamping block to clamp one end of the mounting surface; The positioning parts B are arranged in multiple groups at the edge of the mounting surface, and each group of positioning parts B has two; the positioning parts A and / or the positioning parts B are coupled through a V-shaped structure, and the apex of the coupled V-shaped structure is parallel to the apex of the transmission screw.

4. A fixture assembly for processing a flight handle according to claim 3, characterized in that: The first positioning hole is located in the loading platform; The first clamping mechanism comprises: a first clamping block, located above the loading platform; a connecting shaft, one end of which is fixedly connected to the first clamping block, and the other end of which is fixedly connected to the fixed platform, and the loading platform is slidably connected to the connecting shaft; A lifting component is provided between the loading platform and the fixed platform to drive the loading platform to move along a first clamping direction, where the first clamping direction is the direction of the loading platform toward the first clamping block.

5. A fixture assembly for processing a flight handle according to claim 4, characterized in that: The bottom of the loading platform is provided with a slide groove A, and the fixed platform is provided with a slide groove B. The slide groove A and the slide groove B are combined to form a sliding channel, and the length direction of the sliding channel is parallel to the second clamping direction; The second clamping block pushes the lifting component to slide along the sliding channel; When the loading platform and the fixed platform are in contact with each other, the minimum height of the sliding channel is L1, and the minimum height of the lifting component is L2; ​​L1≤L2; A first inclined surface is provided at the front end of the slide groove A, and the lifting component abuts against the first inclined surface. The first inclined surface converts a portion of the force parallel to the second clamping direction into a force parallel to the first clamping direction.

6. A fixture assembly for processing a flight handle according to claim 5, characterized in that: The slide groove A includes an inclined path and a parallel path along the length direction of the sliding channel, and the inclined path is a path provided with a first inclined surface; The inclined path and the end of the slide groove A are parallel paths; the surface of the parallel path is parallel to the length direction of the sliding channel; The projected length of the inclined path toward the top surface of the loading platform is L3; the projected length of the parallel path toward the top surface of the loading platform is L4; L3 <L4。 7. A fixture assembly for processing a flight handle according to claim 6, characterized in that: The lifting component is connected to the second clamping block, and the second clamping block pushes the lifting component to move along the sliding channel.

8. A fixture assembly for processing a flight handle according to claim 7, characterized in that: The lifting component is provided with a connecting threaded hole; The second clamping block is provided with a connecting through hole, and a connecting bolt is provided in the connecting through hole; The lifting component retreats following the second clamping block only when the connecting bolt is connected to the connecting threaded hole; The retreat is a movement in the opposite direction of the second clamping direction.

9. A fixture assembly for processing a flight handle according to claim 7, characterized in that: The lifting component is connected to the second clamping block in one piece, and when the lifting component leaves the inclined path, the second clamping block continues to move at least a distance of L5 so that the second clamping block can clamp the mounting surface; The second clamping block has a feedback protrusion therein; The fixed platform is provided with a backstop swing arm; When the second clamping block moves toward the second clamping direction, the feedback protrusion and the anti-backward swing arm, the anti-backward swing arm avoids the feedback protrusion; When the second clamping block moves a distance L6 in the opposite direction of the second clamping direction, the back-stopping swing arm blocks the feedback protrusion; L6 <L5。 10. A fixture assembly for processing a flight handle according to claim 9, characterized in that: The mounting surface is circular.

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