Clamp for spline shaft for high-voltage switch
By designing a multifunctional high-voltage switch spline shaft clamp, using multiple fixing holes and removable external spline fittings, the two-way clamping of the two end holes of the spline shaft is solved in the prior art The need to set up two fixtures separately leads to high costs, achieving lower production costs.
Patent Information
- Application Number
- CN202420818252.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-04-19
AI Technical Summary
In the prior art, two fixtures need to be provided separately to process the two end holes of the spline shaft for high voltage switches, resulting in high production costs.
A spline shaft fixture for high-voltage switches is designed, which includes a base plate, a support frame, an external spline fitting and a pressing member. The spline is realized through multiple fixing holes and a removable external spline fitting member. Bidirectional clamping of holes at both ends of the shaft.
The fixture can realize two clamping methods in one fixture, respectively, processing the two end holes of the spline shaft of the high-voltage switch, thereby reducing production costs.
Smart Images
Figure CN222520566U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamp for a spline shaft of a high-voltage switch. Background Art
[0002] The spline shaft for high-voltage switches is a shaft part with two external splines on the shaft body. The two external splines are respectively arranged on the outer wall of the spline shaft for high-voltage switches. The spline shaft for high-voltage switches needs to be processed with process holes and sample punching holes. The process holes and sample punching holes are respectively arranged at the two axial end faces of the workpiece. The above-mentioned two holes have position requirements relative to the external spline tooth shape of the workpiece. In order to achieve precise positioning processing of the two holes, two separate sets of fixtures need to be designed respectively, which increases the production cost.
[0003] Figure 1 It is a structural schematic diagram of a spline shaft for a high-voltage switch, which includes a first external spline 01, a second external spline 02, a process hole 03 and a sample punching hole 04. Utility Model Content
[0004] In view of the above technical problems, the utility model provides a clamp for a spline shaft of a high-voltage switch, which can realize two clamping modes with one clamp.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The utility model provides a clamp for a spline shaft of a high-voltage switch, comprising a base plate, a support frame, two external spline mating parts that can be closely matched with the external splines of the spline shaft, and a clamping part; the support frame is fixed to the base plate; the clamping part can be detachably fixed to the support frame; the clamping part can press a workpiece that is closely matched with the external spline mating part toward the support frame; a plurality of fixing holes are provided at different positions in the vertical direction of the support frame; the external spline mating part can be detachably fixed in any one of the fixing holes.
[0007] The utility model provides a clamp for a spline shaft for a high-voltage switch, preferably, the external spline mating part includes an abutment block and a fixing pin; the abutment block is fixed on the fixing pin; the fixing pin is detachably fixed in the fixing hole; the abutment block is provided with an internal spline for matching with the external spline of the workpiece.
[0008] In the clamp for the spline shaft of a high-voltage switch provided by the utility model, preferably, the number of the fixing holes is four.
[0009] The spline shaft clamp for a high-voltage switch provided by the utility model is preferably provided with a positioning hole on the bottom plate; a positioning pin is fixed in the positioning hole and is removed; when the positioning pin is fixed in the positioning hole, the upper end of the positioning pin extends out of the upper surface of the bottom plate.
[0010] The utility model provides a clamp for a spline shaft of a high-voltage switch, preferably, the clamping piece includes a plurality of bolts and a clamping block; the support frame is provided with a plurality of bolt holes for passing the bolts; the clamping block is provided with a contact surface for abutting against the spline shaft part; the clamping block is provided with a plurality of bolt holes; the bolt passes through the bolt holes on the support frame and the clamping block at the same time; a nut is provided at the end of the bolt, and the limiting distance between the clamping block and the support frame can be adjusted by adjusting the nut.
[0011] The above technical solution has the following advantages or beneficial effects:
[0012] The utility model provides a clamp for a spline shaft for a high-voltage switch, which relates to the technical field of clamps, and includes a base plate, a support frame, two external spline mating parts that can be abutted against the external splines of the spline shaft, and a clamping part; the support frame is fixed to the base plate; the clamping part can be detachably fixed to the support frame; the clamping part can press the workpiece abutting against the external spline mating part toward the support frame; a plurality of fixing holes are provided at different positions in the vertical direction of the support frame; the external spline mating part can be detachably fixed in any one of the fixing holes. The clamp for a spline shaft for a high-voltage switch provided by the utility model solves the problem of the high cost of having to separately set up two clamps to process the two end holes of the spline shaft in the prior art, and can allow one clamp to have two clamping methods to process the two end holes of the spline shaft for the high-voltage switch respectively, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, but the emphasis is on illustrating the subject matter of the present invention.
[0014] Figure 1 It is a structural schematic diagram of a spline shaft for a high-voltage switch provided by the background technology of the utility model.
[0015] Figure 2 It is a schematic diagram of the clamping state of a workpiece of the spline shaft clamp for a high-voltage switch provided in Example 1 of the utility model when machining a process hole.
[0016] Figure 3 This is a schematic diagram of the clamping state of a workpiece of the spline shaft clamp for a high-voltage switch provided in Example 1 of the utility model when processing a sample punching.
[0017] Figure 4 It is a schematic diagram of the top view of the structure of the clamp for the spline shaft of the high-voltage switch provided in Example 1 of the utility model when processing the process hole. DETAILED DESCRIPTION
[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should be noted that the terms used in the present invention are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.
[0019] It should be understood that when the terms “include” and / or “comprise” are used in the present specification, they specify the presence of features, steps, operations, devices, components and / or their combinations.
[0020] If the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0021] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical 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 this utility model can be understood according to specific circumstances.
[0022] The technical solutions in the embodiments of the present invention are described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the protection scope of the present invention.
[0023] Embodiment 1:
[0024] In the prior art, when machining holes on both end faces of a spline shaft for a high-voltage switch, two fixtures need to be set up respectively to ensure that the positions of the machined holes correspond to the tooth groove angles of the external splines on the outer surface of the spline shaft. However, setting up two different sets of fixtures separately will result in high processing costs. To solve this problem, a fixture for a spline shaft for a high-voltage switch provided in Example 1 of the utility model is provided, such as Figures 1 to 4As shown, it includes a base plate 1, a support frame 2, two external spline mating parts 3 that can be abutted against the external splines of the spline shaft, and a clamping part 4; the support frame 2 is fixed on the base plate 1; the clamping part 4 can be detachably fixed to the support frame 2; the clamping part 4 can press the workpiece abutting against the external spline mating part 3 toward the support frame 2; a plurality of fixing holes 21 are arranged at different positions in the vertical direction of the support frame 2; the external spline mating part 3 can be detachably fixed in any one of the fixing holes 21.
[0025] The clamp for the spline shaft of a high-voltage switch provided in Example 1 of the utility model has two use states when in use, and the two use states correspond to the process holes 03 and sample punching holes 04 for processing the spline shaft at both ends of the high-voltage switch respectively; when processing the process hole 03, the base plate 1 is fixed on the workbench, the spline shaft workpiece is tightly pressed against the external spline fitting 3, and then the workpiece is moved toward the external spline fitting 3 and the support frame 2 by using the clamping piece 4, and the bottom of the workpiece is supported on the upper surface of the base plate 1, and the process hole 03 is moved toward the vertical upper drill bit to complete the processing. On the one hand, the external spline fitting 3 limits the horizontal movement of the workpiece, and on the other hand, the external spline fitting 3 is partially pressed against the first external spline 01 and the second external spline 02 of the workpiece, thereby limiting the rotation of the workpiece along its own axis; when processing the sample punching hole 04, it is necessary to first loosen the clamping piece 4, then remove the workpiece, and adjust the position of the external spline fitting 3, by The external spline fitting 3 is removed from the fixing hole 21 so that the external spline fitting 3 is in a position where it can just abut against the two external spline parts of the flipped workpiece, and then the workpiece is placed so that the end face of the workpiece that needs to be processed with the sample punching hole 04 faces upward and the relative end face faces the bottom surface of the base plate 1. The two external splines of the workpiece are respectively abutted against the external spline fitting 3 after the position is changed, and the workpiece is pressed against the external spline fitting 3 by using the clamping piece 4 to process the sample punching hole 04. Compared with the prior art, two different clamps need to be separately set to process the two different holes on the two end faces of the workpiece respectively. In this embodiment, since the external spline fitting 3 that cooperates with the external spline of the workpiece is detachably fixed on the support frame 2, and the position of the external spline fitting 3 can be adjusted according to the fixing hole 21 on the support frame 2, the equipment proposed in this embodiment has the ability to reversely clamp the spline shaft for a high-voltage switch, so the cost of the clamp is lower and the production cost of the workpiece is lower.
[0026] The clamp for the spline shaft for a high-voltage switch provided in Example 1 of the utility model solves the problem in the prior art that two separate clamps are needed to process the two end holes of the spline shaft, which is costly. The equipment proposed in this example allows a clamp to have two clamping modes, so as to process the two end holes of the spline shaft for the high-voltage switch respectively, thereby reducing production costs.
[0027] In order to specifically realize the function of the external spline mating part 3 to limit the tooth groove angle of the external spline of the workpiece, as a preferred scheme, in the present embodiment, the external spline mating part 3 includes an abutment block 31 and a fixing pin 32; the abutment block 31 is fixed on the fixing pin 32; the fixing pin 32 is removably fixed in the fixing hole 21; the abutment block 31 is provided with an internal spline for matching with the external spline of the workpiece. The inner spline of the abutment block 31 is an inner spline that matches the outer spline of the workpiece; when processing the process hole 03, the two outer spline fittings 3 are directly abutted against the abutment block 31 respectively, and then the drill set in a fixed position is moved vertically downward to process the process hole 03; when processing the sample punching hole 04, the process hole 03 is rotated to a specific position according to the position of the process hole 03, and then the outer spline fitting 3 after the position change is used to limit the axis of the flipped workpiece, and the abutment block 31 of the outer spline fitting 3 is used to more accurately limit the tooth groove angle of the workpiece, so that the drill can process a sample punching hole after being limited by the process hole 03.
[0028] As a preferred solution, in this embodiment, the number of the fixing holes 21 is four. The four fixing holes 21 are for the spline shaft for the high-voltage switch to be processed in this embodiment. Since the spline shaft for the high-voltage switch has two external splines, the first external spline 01 and the second external spline 02 flush with the support frame 2 correspond to four positions before and after the spline shaft for the high-voltage switch is flipped. By adjusting the position of the fixing hole 21 where the fixing pin 32 is inserted, two different clamping states of the clamp can be achieved.
[0029] In order to facilitate adjusting the angle of the process hole 03 after the process hole 03 is processed, so as to locate the sample punching hole 04, in this embodiment, a positioning hole 11 is opened on the bottom plate 1; a positioning pin 12 is fixed in the positioning hole 11 and can be disassembled; when the positioning pin 12 is fixed in the positioning hole 11, the upper end of the positioning pin 12 extends out of the upper surface of the bottom plate 1. Since when processing the process hole 03, only the tooth groove angle relationship between the process hole 03 and the external spline of the workpiece as a whole needs to be considered, while when processing the sample punching hole 04, the position relationship with the external spline and the process hole 03 needs to be considered at the same time, therefore, when processing the sample punching hole 04, the position of the process hole 03 needs to be limited. This embodiment summarizes the use of the positioning pin 12 that can be detachably fixed in the positioning hole 11 of the bottom plate 1, so that the process hole 03 of the workpiece after the process hole 03 is processed is sleeved at the position of the positioning pin 12, so as to roughly determine the position of the workpiece, and then the external spline part of the workpiece is matched with the external spline mating part 3, so as to more quickly limit the position of the workpiece.
[0030] In order to realize the function of the clamping member 4, in this embodiment, the clamping member 4 includes a plurality of bolts 41 and a clamping block 42; the support frame 2 is provided with a plurality of bolt holes for passing the bolts 41; the clamping block 42 is provided with a contact surface for contacting with the spline shaft part; the clamping block 42 is provided with a plurality of bolt holes; the bolt 41 passes through the bolt holes on the support frame 2 and the clamping block 42 at the same time; a nut is provided at the end of the bolt 41, and the limit distance between the clamping block 42 and the support frame 2 can be adjusted by adjusting the nut. After the bolt is tightened in the bolt hole, the nut will apply pressure to the clamping block 42, so that the clamping block 42 can provide pressure on the workpiece toward the support frame 2, and the contact surface of the clamping block 42 is used to limit the pressure of the workpiece perpendicular to the extension direction of the bolt, thereby limiting the movement of the workpiece in four horizontal directions; after the workpiece is pressed against the external spline mating member 3 fixed on the support frame 2, the static friction force generated between the workpiece and the external spline mating member 3 is used to prevent the workpiece from sliding in the vertical direction.
[0031] In summary, the utility model provides a clamp for a spline shaft for a high-voltage switch, which relates to the field of clamp technology, including a base plate, a support frame, two external spline mating parts that can be abutted against the external splines of the spline shaft, and a clamping part; the support frame is fixed to the base plate; the clamping part can be detachably fixed to the support frame; the clamping part can press the workpiece abutting against the external spline mating part toward the support frame; a plurality of fixing holes are provided at different positions in the vertical direction of the support frame; the external spline mating part can be detachably fixed in any one of the fixing holes. The clamp for a spline shaft for a high-voltage switch provided by the utility model solves the problem of the high cost of the prior art that two clamps need to be separately set up to process the two end holes of the spline shaft, and can allow one clamp to have two clamping methods to process the two end holes of the spline shaft for the high-voltage switch respectively, thereby reducing production costs.
[0032] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.
Claims
1. A clamp for a spline shaft of a high-voltage switch, characterized in that: It includes a base plate, a support frame, two external spline matching parts that can be abutted and matched with the external splines of the spline shaft, and a pressing part; The support frame is fixed to the bottom plate; The pressing member can be detachably fixed on the support frame; the pressing member can press the workpiece abutting against the external spline mating member toward the support frame; A plurality of fixing holes are arranged at different positions in the vertical direction of the support frame; and the external spline fitting can be detachably fixed in any one of the fixing holes.
2. The clamp for the spline shaft of a high-voltage switch according to claim 1, characterized in that: The external spline mating part includes an abutment block and a fixing pin; The abutment block is fixed on the fixing pin; The fixing pin is detachably fixed in the fixing hole; The abutment block is provided with an internal spline for matching with the external spline of the workpiece.
3. The clamp for the spline shaft of a high voltage switch according to claim 1, characterized in that: The number of the fixing holes is four.
4. The clamp for the spline shaft of a high voltage switch according to claim 1, characterized in that: A positioning hole is provided on the bottom plate; a positioning pin is fixed in the positioning hole and can be removed; when the positioning pin is fixed in the positioning hole, the upper end of the positioning pin extends out of the upper surface of the bottom plate.
5. The clamp for the spline shaft of a high voltage switch according to claim 1, characterized in that: The clamping member includes a plurality of bolts and a clamping block; the support frame is provided with a plurality of bolt holes for passing the bolts; the clamping block is provided with a contact surface for contacting with the spline shaft part; the clamping block is provided with a plurality of the bolt holes; The bolt passes through the bolt holes on the support frame and the clamping block at the same time; a nut is provided at the end of the bolt, and the limiting distance between the clamping block and the support frame can be adjusted by adjusting the nut.