Diameter-variable point type contact tool lifting handle

Abstract

The utility model relates to the technical field of tool lifting handles, in particular to a variable-diameter point type contact tool lifting handle which comprises a rotary material lifting assembly, a main lifting handle, a main lifting frame, an auxiliary lifting handle and an auxiliary lifting frame. The rotary material lifting assembly comprises a lifting component and a rotating component which are matched in an inserted mode, and a point contact part is installed on the rotating component. The main lifting handle is fixedly connected with the main lifting frame; the rotary material lifting assembly is installed on the main lifting frame and provided with a first sliding fit locking structure. The auxiliary lifting handle and the auxiliary lifting frame are relatively fixed; the auxiliary lifting frame is fixedly connected with the lifting component and provided with a second sliding fit locking structure. By switching the radial position of the rotary material lifting assembly, the annular workpiece loading and unloading device can be applied to annular workpieces of different sizes, rotation of the rotary component is achieved based on linear motion of the lifting component through cooperation of the lifting component and the rotary component, and then loading and unloading of the annular workpieces are completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool handle technical field, especially point contact's tool handle of variable diameter. BACKGROUND

[0002] With the continuous development of modern industry, the requirement for material surface performance is increasing, and the slurry sintering method is widely used in various fields because it can give the workpiece excellent wear resistance, corrosion resistance, high temperature resistance and other properties. In this process, the slurry is coated on the workpiece by brushing or spraying, and then put into the heating furnace for high temperature sintering. In this process, the workpiece needs to be moved from the spraying support to the support of the heating furnace by using a tool. Because the adhesion of the coated slurry on the workpiece may be poor, if the support is directly moved by hand, it may cause the slurry on the workpiece to fall off. This not only causes waste of materials, but also causes defects on the surface of the workpiece, reducing the protective performance and service life of the coating. In addition, even if the slurry does not fall off during the handling process, if it is disturbed too much, it may also cause uneven distribution of the slurry on the workpiece surface, thereby affecting the quality of the coating. In order to solve the above problems, some traditional tools are used for handling of the workpiece, but these tools often have some limitations. For example, some tools have a large contact area, which can easily cause extrusion and scratching of the slurry when in contact with the workpiece surface, resulting in slurry falling off or deformation; some tools cannot be flexibly adjusted according to different sizes and shapes of workpieces, and have poor universality, increasing production cost and operation complexity. Therefore, the utility model discloses a point contact tool handle with variable diameter. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a point contact tool handle with variable diameter to solve the problem of slurry falling off during the movement of the workpiece coated with the coating in the prior art.

[0004] The technical scheme of the utility model is: a point contact tool handle with variable diameter, comprising:

[0005] At least three rotating material lifting assemblies arranged in a ring shape, the rotating material lifting assembly comprising a lifting member and a rotating member connected by a plug-in fit; the lifting member and the rotating member have a matching spiral groove and guide column therebetween, and the rotating member is provided with a point contact part;

[0006] A main handle and a main frame, the main handle and the main frame being fixedly connected; the rotating material lifting assembly is installed on the main frame and has a first sliding fit locking structure;

[0007] A secondary handle and a secondary frame, the secondary handle and the secondary frame being fixedly connected; the secondary frame is fixedly connected with the lifting member and has a second sliding fit locking structure;

[0008] The auxiliary lifting frame is arranged on the upper end of the main lifting frame, the rotating member rotates relative to the main lifting frame when the lifting member is lifted by the auxiliary lifting frame, and the point contact portion is driven to rotate.

[0009] Preferably, the lifting member and the rotating member are arranged in the positioning sleeve, and the positioning sleeve is fixedly connected to the main lifting frame through the adjusting member.

[0010] The first sliding and locking structure comprises a first sliding groove formed on the adjusting member and a first locking member arranged on the main lifting frame, and the first locking member penetrates the main lifting frame and the first sliding groove to lock the adjusting member on the main lifting frame.

[0011] Preferably, the second sliding and locking structure comprises a second sliding groove formed on the auxiliary lifting frame and a second locking member fixedly connected to the lifting member, and the lifting member penetrates the second sliding groove and is connected to the second locking member, and the second locking member always abuts against the auxiliary lifting frame.

[0012] Preferably, a first compression elastic member is arranged between the lifting member and the upper end of the positioning sleeve.

[0013] A second compression elastic member is arranged between the lifting member and the rotating member, a limiting portion is arranged on the rotating member, and the second compression elastic member always abuts against the lower end of the positioning sleeve.

[0014] Preferably, the lifting member comprises a first lifting member and a second lifting member, the outer diameter of the first lifting member is smaller than that of the second lifting member, a coaxial inner cavity is arranged in the second lifting member, and a helical groove is arranged on the outer wall of the second lifting member; the first compression elastic member is arranged outside the first lifting member, the upper end of the first compression elastic member abuts against an upper fixing member fixed in the positioning sleeve, and the lower end of the first compression elastic member abuts against a stepped surface between the first lifting member and the second lifting member.

[0015] The rotating member is inserted into the inner cavity of the second lifting member, a guide column is arranged on the outer wall of the rotating member, the second compression elastic member is arranged in the inner cavity, the upper end of the second compression elastic member abuts against the top wall of the inner cavity, and the lower end of the second compression elastic member abuts against the upper end surface of the rotating member; under the action of the second compression elastic member, the limiting portion fixed on the rotating member always abuts against a lower fixing member fixed in the positioning sleeve.

[0016] Preferably, the limiting portion is in the form of a pin shaft structure penetrating the rotating member, the axis of the limiting portion is perpendicular to the axis of the rotating member, and a mounting hole for mounting the limiting portion is arranged on the outer wall of the positioning sleeve.

[0017] Preferably, the adjusting member is radially distributed along the annular space in the space where the plurality of rotating material lifting assemblies are annularly distributed, and the main lifting frame has an adjusting cavity for radial adjustment of the adjusting member.

[0018] Preferably, the adjusting member is internally penetrated by a positioning sleeve and fixed by a third locking member.

[0019] Preferably, three rotating material lifting assemblies are provided, and a corresponding number of adjusting members are provided.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] The application realizes application to annular workpieces of different sizes by switching the radial position of the rotating material lifting assembly, and realizes rotation of the rotating member based on linear motion of the lifting member through cooperation of the lifting member and the rotating member, and then completes loading and unloading of the annular workpiece. The application can adaptively adjust according to workpieces of different sizes and shapes, ensures close cooperation and stable contact between the tooling and the workpiece, not only improves the versatility of the tooling, reduces production cost, but also better adapts to diversified production demands, improves production efficiency and flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below in combination with the drawings and embodiments:

[0023] Figure 1 A structure diagram of the variable-diameter point contact tooling lifting handle according to the utility model;

[0024] Figure 2 A sectional view of the variable-diameter point contact tooling lifting handle according to the utility model;

[0025] Figure 3 A structure diagram of the main lifting handle and the main lifting frame according to the utility model;

[0026] Figure 4 A structure diagram of the rotating material lifting assembly and the adjusting member according to the utility model;

[0027] Figure 5 A structure diagram of the rotating material lifting assembly according to the utility model;

[0028] Figure 6 A structure diagram of the lifting member and the rotating member according to the utility model;

[0029] Figure 7 A sectional view of the rotating material lifting assembly according to the utility model.

[0030] Wherein: 11, main handle, 12, main frame, 121, profile, 13, adjusting cavity, 14, assembly hole, 15, fixed plate;

[0031] 21, sub handle, 22, sub frame;

[0032] 3, rotating lifting assembly;

[0033] 31, positioning sleeve, 311, mounting hole, 312, upper fixing piece, 313, lower fixing piece;

[0034] 32, lifting member, 321, first lifting piece, 322, second lifting piece, 323, inner cavity;

[0035] 33, rotating member, 34, point contact part, 35, spiral groove, 36, guide column, 37, limiting part, 38, first compression elastic piece, 39, second compression elastic piece;

[0036] 4, adjusting member, 41, third locking member;

[0037] 5, first sliding fit locking structure, 51, first sliding groove, 52, first locking member;

[0038] 6, second sliding fit locking structure, 61, second sliding groove, 62, second locking member. DETAILED DESCRIPTION

[0039] The content of the present application will be further described in detail below in combination with specific embodiments:

[0040] As shown in Figure 1 , Figure 2 , a variable diameter point contact tool handle, comprising a rotating lifting assembly 3, a main handle 11 and a main frame 12, a sub handle 21 and a sub frame 22.

[0041] As shown in Figure 3 , in this embodiment, regarding the main handle 11 and the main frame 12, the following is specific:

[0042] The main frame 12 is formed by three groups of profiles 121 and is distributed in a divergent manner, each profile 121 is in the shape of a mouth and forms an adjusting cavity 13 inside. Of course, in other embodiments, the main frame 12 can also be formed by more than three groups of profiles 121.

[0043] The main handle 11 is in the shape of n and is fixed at both ends on the main frame 12, combined Figure 2As shown, the main handle 11 and the main frame 12 can be fixedly connected by screws, the screws are fixedly connected by penetrating the top of the profile 121 and extending into the main handle 11, at this time, in order to facilitate the locking of the screws, assembly holes 14 need to be provided on the side wall of the profile 121. Of course, in other embodiments, the main handle 11 and the main frame 12 can also be fixedly connected by welding.

[0044] In order to ensure the convenience and stability of the overall structure, the main handle 11 needs to be installed as much as possible at the center of the upper end of the main frame 12. Since the main frame 12 is Y-shaped in this embodiment, a fixed plate 15 is added between any two profiles 121, and the two ends of the main handle 11 are respectively installed on the fixed plate 15 and the profile 121 opposite to it.

[0045] Regarding the sub-handle 21 and the sub-frame 22, the following is specific:

[0046] In combination Figure 1 , Figure 2 As shown, the sub-frame 22 is arranged on the upper end surface of the main frame 12, and the sub-frame 22 is configured in a Y-shaped structure. The sub-handle 21 is fixed relative to the sub-frame 22, and the two ends of the sub-handle 21 are bent to be horizontal and embedded between the sub-frame 22 and the main frame 12. It should be noted that the main frame 12 and the sub-frame 22 are not fixedly connected, and the two are closely attached based on the action of the rotating material lifting assembly 3 in the normal state.

[0047] Regarding the rotating material lifting assembly 3, the following is specific:

[0048] First, the number of rotating material lifting assemblies 3 is the same as the number of profiles 121 corresponding to the main frame 12, and is distributed in a ring shape in space. As shown in Figure 1 , Figure 4 The rotating material lifting assembly 3 is fixedly connected to the main frame 12 by the adjusting member 4. Since the adjusting member 4 is installed in the adjusting cavity 13 and is distributed along the radial direction of the annular space, the adjusting member 4 is internally penetrated by the positioning sleeve 31 and is fixed by the third locking member 41.

[0049] As shown in Figures 5-7 The rotating material lifting assembly 3 includes a lifting member 32 and a rotating member 33 that are inserted and matched; the lifting member 32 and the rotating member 33 have a matching spiral groove 35 and a guide column 36 therebetween, and the rotating member 33 is provided with a point contact portion 34; when the lifting member 32 is lifted by the sub-frame 22, the rotating member 33 rotates relative to the main frame 12, and the point contact portion 34 rotates.

[0050] In this embodiment, the lifting member 32 and the rotating member 33 are installed in the positioning sleeve 31, and the positioning sleeve 31 is fixedly connected to the main frame 12 by the adjusting member 4.

[0051] A first compression elastic member 38 is arranged between the lifting member 32 and the upper end of the positioning sleeve 31; specifically, as shown in Figure 6 、 Figure 7 , the lifting member 32 comprises a first lifting member 321 and a second lifting member 322, the outer diameter of the first lifting member 321 is smaller than that of the second lifting member 322, the second lifting member 322 is internally provided with a coaxial inner cavity 323, and the helical groove 35 is arranged on the outer wall of the second lifting member 322; the first compression elastic member 38 is sleeved on the outside of the first lifting member 321, the upper end thereof abuts against the upper fixing member 312 fixed in the positioning sleeve 31, and the lower end thereof abuts against the stepped surface between the first lifting member 321 and the second lifting member 322.

[0052] A second compression elastic member 39 is arranged between the lifting member 32 and the rotating member 33, the rotating member 33 is provided with a limiting portion 37, and the second compression elastic member 39 makes the limiting portion 37 always abut against the lower fixing member 313 at the lower end of the positioning sleeve 31. Specifically, the rotating member 33 is inserted into the inner cavity 323 of the second lifting member 322, the guide column 36 is arranged on the outer wall of the rotating member 33 and cooperates with the helical groove 35, the lower end of the rotating member 33 extends to the outside of the positioning sleeve 31, the point contact portion 34 is fixed at the lower end of the rotating member 33 and is in a horizontal state, thereby achieving the support of the workpiece, the second compression elastic member 39 is arranged in the inner cavity 323, the upper end thereof abuts against the top wall of the inner cavity 323, and the lower end thereof abuts against the upper end surface of the rotating member 33; under the action of the second compression elastic member 39, the limiting portion 37 fixed on the rotating member 33 always abuts against the lower fixing member 313 fixed in the positioning sleeve 31, thereby achieving the rotation of the rotating member 33 without displacement along the axial direction when the lifting member 32 moves up and down. In the embodiment, the limiting portion 37 is configured as a pin shaft structure penetrating through the rotating member 33, the axis of the limiting portion 37 is perpendicular to the axis of the rotating member 33, and the mounting hole 311 for mounting the limiting portion 37 is arranged on the outer wall of the positioning sleeve 31.

[0053] The upper fixing member 312 and the lower fixing member 313 in the positioning sleeve 31 are both annular structures, the upper fixing member 312 is penetrated by the lifting member 32, and the lower fixing member 313 is penetrated by the rotating member 33; after the upper fixing member 312 and the lower fixing member 313 are installed into the positioning sleeve 31, both need to be limited by the stop ring; further, in the application scenario, based on the arrangement of the first compression elastic member 38 and the second compression elastic member 39, the upper fixing member 312 and the lower fixing member 313 can always be in a fixed position.

[0054] In the embodiment, the first compression elastic member 38 and the second compression elastic member 39 are both compression springs.

[0055] As to the arrangement of the screw groove 35 and the guide column 36, in other embodiments, the lower end of the lifting member 32 can be inserted into the upper end of the rotating member 33, and then the screw groove 35 is arranged on the lifting member 32 and the guide column 36 is arranged on the rotating member 33.

[0056] In order to realize the "variable diameter" of the tool handle, the rotating material lifting assembly 3 needs to be adjusted in the radial direction relative to the main lifting frame 12 and the auxiliary lifting frame 22. Then, the rotating material lifting assembly 3 and the main lifting frame 12 have a first sliding fit locking structure 5, and the auxiliary lifting frame 22 has a second sliding fit locking structure 6.

[0057] The first sliding fit locking structure 5 includes a first sliding groove 51 formed on the adjusting member 4, and a first locking member 52 installed on the main lifting frame 12. The first locking member 52 penetrates the main lifting frame 12 and the first sliding groove 51, and locks the adjusting member 4 on the main lifting frame 12.

[0058] The second sliding fit locking structure 6 includes a second sliding groove 61 formed on the auxiliary lifting frame 22, and a second locking member 62 fixedly connected with the lifting member 32. The lifting member 32 penetrates the second sliding groove 61 and is connected with the second locking member 62. Under the action of the second compression elastic member 39, the second locking member 62 always abuts against the auxiliary lifting frame 22.

[0059] The first sliding groove 51 and the second sliding groove 61 are used for the radial position adjustment of the rotating material lifting assembly 3. The first locking member 52 is used for the positioning of the rotating material lifting assembly 3 after the position adjustment. The second locking member 62 is used for the upward movement of the lifting member 32 along with the auxiliary lifting frame 22. In order to ensure the convenience of the radial adjustment, the second sliding groove 61 is provided with scale values distributed along the length direction on the side of the upper end surface of the auxiliary lifting frame 22, so as to ensure the consistency of the adjustment of the rotating material lifting assemblies 3.

[0060] It should be noted that in the present application, the rotating material lifting assembly 3 is adjusted in position relative to the main lifting frame 12 by being fixed on the adjusting member 4. Of course, in other embodiments, the rotating material lifting assembly 3 can be directly installed on the main lifting frame 12. A groove is provided on the main lifting frame 12 for the sliding fit of the positioning sleeve 31. When the positioning sleeve 31 is moved to a specified position, it can be locked and fixed by a bolt.

[0061] The working principle of the present application is mainly as follows:

[0062] The tool handle is in a normal state or a state of supporting a workpiece, for example, Figure 1As shown, at this time, the second locking member 62 is pressed against the sub lifting frame 22 under the action of the first compression elastic member 38, so that the sub lifting frame 22 is always tightly attached to the main lifting frame 12; and the guide column 36 is at the top of the spiral groove 35, the point contact part 34 is outward and arranged along the radial direction of the annular space, which can support the workpiece in this state. When it is necessary to take and place the workpiece, the point contact part 34 must be rotated, at this time, the sub lifting handle 21 is pulled upward, so that the sub lifting frame 22, the second locking member 62 and the lifting member 32 are synchronously lifted upward, and due to the action of the second compression elastic member 39, the limiting part 37 fixed on the rotating member 33 is always in abutment with the lower fixing member 313 fixed in the positioning sleeve 31 and does not move upward, when the spiral groove 35 is lifted, the guide column 36 is limited by the spiral groove 35, so that the rotating member 33 only rotates, and then the point contact part 34 rotates, and the loading and unloading of the annular workpiece is completed.

[0063] In the present application, the variable-diameter point contact tool handle adopts a point contact design, that is, a plurality of small-area contact points are arranged on the rotating lifting assembly 3 to contact the surface of the workpiece, effectively reducing the contact area between the tool and the slurry, thereby reducing the risk of extrusion and scratching of the slurry, and greatly improving the stability and integrity of the slurry during the handling process. In application, by using this variable-diameter point contact tool handle, the problem of coating quality caused by slurry falling or uneven distribution can be effectively avoided, and the pass rate and quality stability of the coating are improved. At the same time, its convenient operation and good versatility also help to reduce the downtime and adjustment times in the production process, further improving the production efficiency.

[0064] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A variable-diameter point-contact tooling handle, characterized in that, include: At least three rotating material lifting assemblies (3) arranged in a ring shape, the rotating material lifting assembly (3) including a lifting component (32) and a rotating component (33) that are plugged into each other; the lifting component (32) and the rotating component (33) have a matching spiral groove (35) and a guide post (36), and a point contact part (34) is installed on the rotating component (33); The main handle (11) and the main lifting frame (12) are fixedly connected; the rotating material lifting assembly (3) is installed on the main lifting frame (12) and has a first sliding locking structure (5); A secondary handle (21) and a secondary lifting frame (22) are provided, wherein the secondary handle (21) and the secondary lifting frame (22) are fixed relative to each other; the secondary lifting frame (22) is fixedly connected to the lifting component (32) and has a second sliding locking structure (6); The auxiliary lifting frame (22) is located on the upper end of the main lifting frame (12). When the lifting component (32) is lifted and lowered by the auxiliary lifting frame (22), the rotating component (33) rotates relative to the main lifting frame (12) on a fixed axis, and drives the point contact part (34) to rotate.

2. The variable-diameter point-contact tooling handle according to claim 1, characterized in that: The lifting component (32) and the rotating component (33) are installed in the positioning sleeve (31), and the positioning sleeve (31) is fixedly connected to the main lifting frame (12) through the adjusting component (4); The first sliding locking structure (5) includes a first sliding groove (51) formed on the adjusting member (4) and a first locking member (52) installed on the main lifting frame (12). The first locking member (52) passes through the main lifting frame (12) and the first sliding groove (51) to lock the adjusting member (4) onto the main lifting frame (12).

3. The variable-diameter point-contact tooling handle according to claim 1, characterized in that: The second sliding locking structure (6) includes a second sliding groove (61) formed on the auxiliary lifting frame (22) and a second locking member (62) fixedly connected to the lifting member (32); the lifting member (32) passes through the second sliding groove (61) and is connected to the second locking member (62), and the second locking member (62) is always abutting against the auxiliary lifting frame (22).

4. A variable-diameter point-contact tooling handle according to claim 2, characterized in that: A first compression elastic element (38) is provided between the lifting component (32) and the upper end of the positioning sleeve (31); A second compression elastic element (39) is provided between the lifting component (32) and the rotating component (33). A limiting part (37) is provided on the rotating component (33). The second compression elastic element (39) ensures that the limiting part (37) is always pressed against the lower end of the positioning sleeve (31).

5. A variable-diameter point-contact tooling handle according to claim 4, characterized in that: The lifting component (32) includes a first lifting component (321) and a second lifting component (322). The outer diameter of the first lifting component (321) is smaller than the outer diameter of the second lifting component (322). The second lifting component (322) has a coaxially arranged inner cavity (323). The spiral groove (35) is provided on the outer wall of the second lifting component (322). The first compression elastic element (38) is sleeved on the outside of the first lifting component (321). Its upper end abuts against the upper fixing element fixed in the positioning sleeve (31), and its lower end abuts against the step surface between the first lifting component (321) and the second lifting component (322). The rotating component (33) is inserted into the inner cavity (323) of the second lifting component (322), and the guide post (36) is disposed on the outer wall of the rotating component (33); the second compression elastic component (39) is disposed in the inner cavity (323), with its upper end abutting against the top wall of the inner cavity (323) and its lower end abutting against the upper end face of the rotating component (33); under the action of the second compression elastic component (39), the limiting part (37) fixed on the rotating component (33) always abuts against the lower fixing component fixed in the positioning sleeve (31).

6. A variable-diameter point-contact tooling handle according to claim 5, characterized in that: The limiting part (37) is constructed as a pin structure that passes through the rotating member (33). The axis of the limiting part (37) is perpendicular to the axis of the rotating member (33). The outer wall of the positioning sleeve (31) is provided with mounting holes for the limiting part (37) to be installed.

7. A variable-diameter point-contact tooling handle according to claim 2, characterized in that: Within the space in which the multiple rotating material lifting components (3) are arranged in a ring, the adjusting member (4) is radially distributed along the ring space, and the main lifting frame (12) has an adjusting cavity (13) for the adjusting member (4) to be adjusted radially.

8. A variable-diameter point-contact tooling handle according to claim 7, characterized in that: The adjusting member (4) is internally provided by the positioning sleeve (31) and fixed by the third locking member (41).

9. A variable-diameter point-contact tooling handle according to claim 2, characterized in that: The rotating material lifting assembly (3) is provided in three parts, and a corresponding number of the adjusting parts (4) are provided.

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